PINCH-PULL TYPE CLOSURE LINER

CROSS-REFERENCE TO RELATED APPLICATION

[0001]This non-provisional application claims priority under 35 U.S.C. § 119(a) on Patent Application No(s). 114100510 filed in Taiwan, R.O.C. on Jan. 6, 2025 and No(s). 114139970 filed in Taiwan, R.O.C. on Oct. 16, 2025, the entire contents of which are hereby incorporated by reference.

BACKGROUND OF THE INVENTION

1. Field of the Invention

[0002]The present disclosure relates to a pinch-pull type closure liner, in particular to a two-stage tear-off pinch-pull type closure liner.

2. Description of the Related Art

[0003]In order to prevent the contents of a packaging container such as beverage can and medicine can from leaking out and deteriorating due to the influence of the external environment, a closure liner is used to seal the container mouth of the packaging container. Further, generally speaking, a closure liner is made from a material such as aluminum foil, cardboard, etc.

[0004]By using a closure liner tightly mounted to the container mouth, it is possible to achieve the technical effects of preventing the contents in the packaging container from leaking out and preserving the contents in a sealing manner.

BRIEF SUMMARY OF THE INVENTION

[0005]However, because the design of the conventional closure liner is mainly based on the considerations of sealing effects, but not on the ease of tearing off the liner. In such case, the aluminum foil or cardboard at the container mouth is not easy to open by pressing with users'fingers, and it is cumbersome and dangerous to cut with a knife or poke with an awl, resulting in inconvenience for users.

[0006]In addition, because the design of conventional closure liner is mainly based on the consideration of tearing the liner at one time; when the closure liner is torn off, the container mouth is opened entirely at once, and a large number of contents will be poured out if the users are not careful, resulting in a waste of contents. Moreover, after painstakingly removing the sealing aluminum-plastic film at the container mouth, cardboard residues inside the container lid function poorly to block oxygen and moisture, thereby the contents in the container are easily affected by oxygen and moisture and thus deteriorate.

[0007]Therefore, solving the above-mentioned problems encountered by the conventional closure liner and effectively improving the convenience of tearing has become an urgently issue to be addressed in the present technical field.

[0008]In order to resolve the above-mentioned problem, a pinch-pull type closure liner in accordance with an aspect of the present disclosure comprises: a functional layer, which includes a surface film and a bonding film sequentially from top to bottom; a sealing layer, located below the functional layer; a release layer and a strong adhesion layer, located between the surface film and the sealing layer; and an electromagnetic induction heating layer, located between the surface film and the sealing layer; wherein the functional layer of the pinch-pull type closure liner is provided with a first tearing area, a hollow area, a first tearing line, a second tearing line and a secondary cutting line. The first tearing area includes: a lifting part; a lifting neck, connected with the bottom end of the lifting part and having a first connection point and a second connection point; the first tearing line being connected with the first connection point at one end; and the second tearing line being connected with the second connection point at one end. Further, the hollow area is formed by cutting the secondary cutting line, a thickness of the hollow area is less than a thickness of the pinch-pull type closure liner, and the hollow area is located at a periphery of the lifting part and is connected with two sides of the lifting neck; the release layer and the strong adhesion layer are located on a lower surface of the bonding film corresponding to the lifting part, or on an upper surface or a lower surface of the electromagnetic induction heating layer.

[0009]In one embodiment, the functional layer of the pinch-pull type closure liner is further provided with the main cutting line dividing the pinch-pull type closure liner into an outer ring and an inner ring; and an inner side of the outer ring is surrounded by and connected with an outer side of the inner ring; and the portions of the main cutting line and the inner ring not including the first tearing area form a second tearing area.

[0010]In one embodiment, the other end of the first tearing line is connected with the main cutting line, and the other end of the second tearing line is connected with the main cutting line.

[0011]In one embodiment, the other end of the first tearing line is connected with the lifting neck, and the other end of the second tearing line is connected with the lifting neck.

[0012]In one embodiment, the other end of the first tearing line is connected with the other end of the second tearing line.

[0013]In one embodiment, the first tearing line and/or the second tearing line have at least one breakpoint, and the functional layer has a part corresponding to the breakpoints and the part is not completely cut in the vertical direction, the functional layer has another part; except for the breakpoints, the first tearing line and/or the second tearing line is completely cut. In another embodiment, the main cutting line has at least three breakpoints, and the first tearing line and/or the second tearing line have at least one breakpoint, and the part of the functional layer corresponding to the breakpoints is not completely cut in the vertical direction; except for the breakpoints, the part of the functional layer corresponding to the main cutting line, the first tearing line and/or the second tearing line is completely cut. In still another embodiment, the main cutting line has at least three breakpoints, and the first tearing line and/or the second tearing line have at least one breakpoint, an end part of the upper surface of the functional layer corresponding to the breakpoints is not cut in the vertical direction from 0.02 mm to 0.9 mm along the horizontal direction of the main cutting line, the first tearing line and/or the second tearing line; and except for the breakpoints, the part of the functional layer corresponding to the main cutting line, the first tearing line and/or the second tearing line is completely cut.

[0014]In one embodiment, the material of the surface film is at least one selected from the group consisting of polyimide (PI), polyethylene naphthalate (PEN), polyamide (PA), polyethylene terephthalate (PET), polyethylene (PE) and polypropylene (PP).

[0015]In one embodiment, the material of the bonding film is at least one selected from the group consisting of polyethylene terephthalate (PET), polypropylene (PP), expandable polyethylene (EPE), expandable polypropylene (EPP), polyamide (PA), and polyethylene (PE).

[0016]In one embodiment, the sealing layer is a hot melt glue or a combination of a sealing film and an adhesive, and the material of the hot melt glue is at least one selected from the group consisting of PE, PP, ethylene-methyl acrylate copolymer (EMAC), ethylene methacrylic acid copolymer (EMAA), ethylene-ethyl acrylate (EEA), ethylene acrylic acid copolymer (EAA), ethylene butyl acrylate (EBA) and ethylene-methyl methacrylate copolymer (EMMA); the sealing film is at least one selected from the group consisting of PE, PP, PA, PVDC, EVOH and PET; and the adhesive is located between the sealing film and the electromagnetic induction heating layer.

[0017]In one embodiment, the strong adhesion layer makes the peeling strength between the bonding film and the electromagnetic induction heating layer, measured by a standard of ASTM D903, greater than 12N/15 mm.

[0018]In one embodiment, the strong adhesion layer is a dry compound adhesive or a hot melt lamination glue, and the material of the hot melt lamination glue is at least one selected from the group consisting of PE, PP, EMAC, EMAA, EEA, EAA and EMMA.

[0019]In one embodiment, the release layer is coated on a lower surface of the functional layer, and a coating area of the release layer is not less than the lifting part. Further, in another embodiment, the release layer is coated on the upper surface of the electromagnetic induction heating layer, the coating area of the release layer is not less than the hollow area and the lifting part. Still further, in another embodiment, the release layer is coated on the lower surface of the electromagnetic induction heating layer, the coating area of the release layer is not less than the

Lifting Part.

[0020]In one embodiment, the surface film and the bonding film therebetween further include a lamination film and/or a lamination foaming film, and the lamination film is at least one selected from the group consisting of PI, PEN, PET, PP, PA, and PE, the lamination foaming film is EPE or EPP.

[0021]In one embodiment, the electromagnetic induction heating layer is aluminum foil or a wireless information integrated flake.

[0022]In one embodiment, the wireless information integrated flake includes: a base film; an information and heating layer including an information area and an electromagnetic induction heating ring; a first adhesive layer located between the base film and the information and heating layer; wherein the information area has an antenna and a chip mutually conducted to each other, and the electromagnetic induction heating ring is around the information area in a plan viewing angle.

[0023]In one embodiment, the wireless information integrated flake further has a protective layer and a second adhesive layer, the protective layer is located on one side of the information and heating layer away from the base film, and the second adhesive layer is located between the information and heating layer and the protective layer.

[0024]In one embodiment, an inner side of the inner edge of the electromagnetic induction heating ring further includes an electromagnetic induction heating ring inner side cutting line (i.e., an inner side cutting line of the electromagnetic induction heating ring), and the electromagnetic induction heating ring inner side cutting line has a plurality of breakpoints, the end part of the upper surface of the functional layer corresponding to the breakpoints is not cut in the vertical direction from 0.02 mm to 0.9 mm along the horizontal direction of the electromagnetic induction heating ring inner side cutting line, the part of the wireless information integrated flake corresponding to the electromagnetic induction heating ring inner side cutting line is completely cut off except for the breakpoints, and at least one breakpoint of the electromagnetic induction heating ring inner side cutting line correspond to at least one breakpoint of the first tearing line and/or the second tearing line or the plurality of breakpoints of the electromagnetic induction heating ring inner side cutting line correspond to the plurality of breakpoints of the main cutting line of the functional layer; moreover, the electromagnetic induction heating ring inner side cutting line is located between the information area and the electromagnetic induction heating ring and around the information area.

[0025]In one embodiment, a spacing is provided between the electromagnetic induction heating ring and the information area. Further, in one embodiment, the spacing is a space between the outermost edge of the information area and the innermost edge of the electromagnetic induction heating ring and the space is 0.1 mm-3 mm. Further, in one preferred embodiment, the spacing fully occupies the position between the electromagnetic induction heating ring and the information area.

[0026]In one embodiment, the information and heating layer further includes at least one physical connection bridge, which is used to connect the information area and the electromagnetic induction heating ring.

[0027]By means of the pinch-pull type closure liner of the present disclosure, the inventors of the present invention allow the user to directly hold the lifting part by hand and pull up and peel off along the lifting part, the lifting neck and the tearing line without using additional objects, so that the layers in the closure liner can be pulled up with the lifting part, thereby achieving the technical effect of easy opening. In addition, during the entire opening process, the re-pressable sealing outer ring structure is not damaged, and the entire opening process is very convenient and fast. Moreover, when the container lid is closed, the container lid can firmly press the re-pressable sealing outer ring left on the container mouth onto the container mouth, thereby the sealing effect is still good when the container lid is pressed and sealed again.

[0028]Next, by means of the pinch-pull type closure liner of the present disclosure, the inventors of the present invention can first open a part of the sealing area (the first tearing area), whereby a small number of contents can be poured out first by demand so as to reduce wasting the contents.

[0029]An aspect of the present disclosure is completed in view of the above-mentioned problem of prior art, and the object is to provide a pinch-pull type closure liner, which can enhance the convenience of the user to tear it apart, and can tear it apart in two stages.

BRIEF DESCRIPTION OF THE DRAWINGS

[0030]FIG. 1 is a schematic cross-sectional view of a pinch-pull type closure liner of an embodiment of the present disclosure.

[0031]FIG. 2A is a schematic top view of the pinch-pull type closure liner of an embodiment of the present disclosure.

[0032]FIG. 2B is a schematic top view of the pinch-pull type closure liner of an embodiment of the present disclosure.

[0033]FIG. 3 is a schematic top view of the pinch-pull type closure liner of another embodiment of the present disclosure.

[0034]FIG. 4 is a schematic top view of the pinch-pull type closure liner of still another embodiment of the present disclosure.

[0035]FIG. 5A is a schematic cross-sectional view of the pinch-pull type closure liner of another embodiment of the present disclosure.

[0036]FIG. 5B is a schematic cross-sectional view of the pinch-pull type closure liner of further embodiment of the present disclosure.

[0037]FIG. 5C is a schematic cross-sectional view of the pinch-pull type closure liner of a still further embodiment of the present disclosure.

[0038]FIG. 6 is a schematic cross-sectional view of a functional layer of a modification example of the present disclosure.

[0039]FIG. 7 is a schematic cross-sectional view of a wireless information integrated flake of an embodiment of the present disclosure.

[0040]FIG. 8A is a schematic plan view of an information and heating layer of an embodiment of the present disclosure.

[0041]FIG. 8B is a schematic plan view of the information and heating layer of another embodiment of the present disclosure.

[0042]FIG. 9A is a schematic plan view of an information area of an embodiment of the present disclosure.

[0043]FIG. 9B is a schematic plan view of the information area of another embodiment of the present disclosure.

[0044]FIG. 10 is a schematic cross-sectional view of the wireless information integrated flake of another embodiment of the present disclosure.

[0045]FIG. 11A to FIG. 11C are schematic top views for illustrating the pinch-pull type closure liner of other embodiment of the present disclosure.

DETAILED DESCRIPTION OF THE INVENTION

[0046]The implementation of the present disclosure is illustrated by the specific embodiments as follows, thereby a person having ordinary skill in the art will understand the other advantages and effects of the present invention by the contents disclosed herein. The present disclosure may also be implemented or applied by other embodiments, and other modifications or variations could be made to the details described in the description of the specification may based on different aspects and applications without deviating from the spirit of the present invention.

[0047]Unless otherwise specified herein, the term “A-B” used in the specification and the claims includes the meaning of “more than A and less than B”. For example, the term “10-40 wt %” includes the meaning of “more than 10 wt % and less than 40 wt %”.

First Embodiment

<Pinch-Pull Type Closure Liner>

[0048]First, referring to FIG. 1, FIG. 1 is a schematic sectional view of a pinch-pull type closure liner 100 of an embodiment of the present disclosure. As shown in FIG. 1, the pinch-pull type closure liner 100 of the embodiment of the present disclosure includes sequentially from top to bottom: a functional layer 1, which includes a surface film 11 and a bonding film 12 sequentially from top to bottom; a release layer 2 and a strong adhesion layer 6; an electromagnetic induction heating layer 3; and a sealing layer 4. Each layer is described in detail below.

<<Surface Film>>

[0049]The surface film is used to make a surface layer of the pinch-pull type closure liner, and an upper surface or a lower surface thereof may be a printing surface for printing different patterns. In one embodiment, the material of the surface film 11 may be at least one selected from the group consisting of PI, PEN, PA, PET, PE and PP. Further, a thickness of the surface film 11 is preferably 12 to 150 μm, and in this range, the surface film has a larger tensile strength, and the surface is flat and the brightness is good.

<<Bonding Film>>

[0050]The bonding film 12 is mainly used for combining with the electromagnetic induction heating layer described in the following. In one embodiment, the material of the bonding film 12 may be at least one selected from the group consisting of PET, EPE, EPP, PA, PP and PE, and a thickness thereof is 12 to 200 μm; thereby the peeling strength of the bonding film and the electromagnetic induction heating layer after combining combination can be improved; or thereby, the cushioning performance of the pinch-pull type closure liner can be further increased by foaming material and increasing the thickness thereof, so as to avoid damage to the structure of the pinch-pull type closure liner due to accidental collisions.

<<Release Layer>>

[0051]The release layer 2 is located between the functional layer 1 and the sealing layer 4. The material of the release layer 2 may be silicone oil, varnish or wax, etc., and a surface thereof is smooth, matte or lattice, and thus it can be peeled easily. The release layer 2 is located on a lower surface of the lifting part as described in the following, so that the user's fingers can pinch the lifting part and easily tear off the closure liner. Moreover, a thickness of the release layer 2 may be 0.5 to 40 μm, so that the lifting part is not easily adhered to the electromagnetic induction heating layer 3 below, and the lifting part can be easily pinched up.

[0052]In one embodiment, as shown in FIG. 1, the release layer 2 is coated on a lower surface of the functional layer 1, and a coating area of the release layer 2 is not less than the lifting part described in the following, whereby, after a hollow area is cut off from the functional layer 1 and after the functional layer 1 is combined with the layer located below, it can be ensured that the lifting part is not easily adhered to the electromagnetic induction heating layer 3 located below, and the lifting part can be easily pinched up. Further, in another embodiment (referring to FIG. 5A), as shown in FIG. 5A, the release layer 2 is coated on an upper surface of the electromagnetic induction heating layer described in the following, and the coating area of the release layer 2 is not less than the hollow area and the lifting part described in the following, and the coating area of the release layer is not larger than the second coating range 22 shown in FIGS. 2A, 2B, 3 and 4, whereby, after the functional layer 1 is combined with the layer located below, the hollow area can be easily detached after the hollow area is cut down from a direction of the surface film 11 of the functional layer 1, and it can be ensured the lifting part is not easily adhered to the electromagnetic induction heating layer 3 located below, and the lifting part can be easily lifted.

[0053]For example, if the release layer is applied onto the lower surface of the functional layer, taking FIGS. 2A, 2B, 3 and 4 as an example, the coating area of the release layer is not less than the first coating range 21 (equivalent to the area surrounded by the broken line in the figure, that is, not less than the lifting part described in the following); moreover, if the release layer is applied onto the upper surface of the electromagnetic induction heating layer, taking FIGS. 2A, 2B, 3 and 4 as an example, the coating area of the release layer is not less than the hollow area and the lifting part, and the coating area of the release layer is not larger than the second coating range 22 (equivalent to the area surrounded by the broken line in the figure); moreover, if the release layer is coated on the lower surface of the electromagnetic induction heating layer (referring to FIG. 5C), the coating area of the release layer is not less than the lifting part, and the coating area of the release layer is less than the first coating range 21 (equivalent to the area surrounded by the broken line in FIGS. 2A, 2B, 3 and 4).

<<Strong Adhesion Layer>>

[0054]The strong adhesion layer 6 is located between the functional layer 1 and the sealing layer 4. More specifically, the strong adhesion layer 6 is located between the bonding film 12 and the electromagnetic induction heating layer 3, and the strong adhesion layer 6 is used to join the bonding film 12 and the electromagnetic induction heating layer 3. Further, because the release layer 2 is provided between the bonding film 12 and the electromagnetic induction heating layer 3, and the release layer 2 belongs to a material that can be peeled off easily, the strong adhesion layer 6 can be further used to closely combine the bonding film 12, the release layer 2 and the electromagnetic induction heating layer 3. In addition, the strong adhesion layer 6 can use dry compound adhesive with strong adhesion or hot melt lamination glue with large peeling strength, so that the peeling strength between the bonding film and the electromagnetic induction heating layer, measured by a standard of ASTM D903, is greater than 12N/15 mm, so as to ensure that, starting from the lifting neck, the functional layer and the electromagnetic induction heating layer located below can tear the electromagnetic induction heating layer and the sealing layer apart with extremely strong peeling strength. In one embodiment, the material of the hot melt lamination glue may be at least one selected from the group consisting of PE, PP, EMAC, EMAA, EEA, EAA and EMMA, and a thickness of the hot melt lamination glue may be 4 to 60 μm. Accordingly, when the user holds and pulls up and peels off the lifting part, etc., it is easier to bring each layer of the inner ring of the pinch-pull type closure liner 100 to be pulled up and peeled off together.

[0055]In one embodiment, the release layer 2 and the strong adhesion layer 6 are located on the lower surface of the lifting part or the upper surface of the electromagnetic induction heating layer 3 as described below. Taking FIG. 1 as an example, the release layer 2 and the strong adhesion layer 6 are coated on the lower surface of the bonding film 12; further, taking FIG. 5A as an example, the release layer 2 and the strong adhesion layer 6 are coated on the upper surface of the electromagnetic induction heating layer 3.

<<Electromagnetic Induction Heating Layer>>

[0056]The electromagnetic induction heating layer 3 is located between the functional layer 1 and the sealing layer 4. The electromagnetic induction heating layer 3 may be aluminum foil or a wireless information integrated flake as described hereunder. The aluminum foil is an existing structure in conventional closure liners, a thickness of the aluminum foil is preferably 10 to 40 μm, the aluminum foil can prevent leakage of contents and seal and preserve the contents.

[0057]Moreover, the wireless information integrated flake described in the following can be used to replace the aluminum foil, thereby effectively reducing the amount of aluminum foil used and reduce energy consumption. Specifically, by the wireless information integrated flake of the present disclosure, the transmission function of wireless information can be enhanced, the waste of material can be reduced, energy consumption can be reduced, the waste of manpower can be avoided, the interference of metal and liquid is avoided, the production efficiency is improved, the communication performance is good and the communication distance is greatly enhanced, and the automation, digitization and intelligent development of factory, warehouse, logistics, store, unmanned cashier management can be greatly enhanced.

<<Sealing Layer>>

[0058]The sealing layer 4 is located below the functional layer 1. The sealing layer 4 is mainly used to seal the container mouth and may be a hot melt glue or a combination of a sealing film and an adhesive. Specifically, as shown in FIG. 1, the sealing layer 4 is a single-layer hot melt glue, and the main material thereof may be at least one selected from the group consisting of PE, PP, EMAC, EMAA, EEA, EAA, EBA and EMMA, and a thickness of the hot melt glue may be 4 to 150 μm. by means of this hot melt glue, it is possible to achieve continuous sealing without the use of adhesives.

[0059]Further, in another embodiment (referring to FIG. 5A), as shown in FIG. 5A, the sealing layer 4 may be a combination of the sealing film 41 and the adhesive 42, and the adhesive 42 is located between the sealing film 41 and the electromagnetic induction heating layer 3, thereby a suitable sealing film 41 can be selected to seal different containers; in which the sealing film 41 may be at least one selected from the group consisting of PE, PP, PA, PVDC, EVOH and PET, and a thickness of the sealing film 41 may be 12 to 100 μm; the adhesive 42 may be a conventional adhesive, such as dry compound adhesive, etc., and there is no special limitation.

[0060]Further, in another embodiment, the pinch-pull type closure liner includes sequentially from top to bottom: a functional layer 1, which includes a surface film and a bonding film sequentially from top to bottom; an electromagnetic induction heating layer; a release layer and a strong adhesion layer; and a sealing layer.

[0061]In addition, although not shown in the drawings, each of the layers of the pinch-pull type closure liner of the present embodiment may be combined in various ways (such as bonding, joining or connecting, etc.).

[0062]Referring to FIGS. 2A, 2B, 3 and 4, the figures illustrate the tearing mode of the pinch-pull type closure liner of each embodiment of the present disclosure. Moreover, FIGS. 2A, 2B, 3 and 4 are schematic top views of the pinch-pull type closure liner of three different embodiments of the present disclosure.

[0063]First, FIG. 2A is a schematic top view of an embodiment of the pinch-pull type closure liner according to the present disclosure (not including the main cutting line); and, FIG. 2B is a schematic top view of an embodiment of the pinch-pull type closure liner according to the present disclosure (including the main cutting line). Further, as shown in FIG. 2A, the upper surface of the surface film 11 of the functional layer (i.e., the upper surface of the pinch-pull type closure liner 100) is provided with the first tearing area 1122, a hollow area 1121, a first tearing line 1122c, a second tearing line 1122d and a secondary cutting line 9b. The first tearing line 1122c is equivalent to a line connected by points a-g-f; and the second tearing line 1122d is equivalent to a line connected by points c-d-e.

[0064]Moreover, in FIG. 2A, the first tearing area 1122 includes: a lifting part 1122a, which is equivalent to a quasi-circular area surrounded by points a-b-c-a; the lifting neck 1122b (equivalent to a portion of a line connected by points a-c), which is connected with the bottom end of the lifting part 1122a and has a first connection point 1122b1 (i.e., point a) and a second connection point 1122b2 (i.e., point c). Here, the first tearing line 1122c (equivalent to a line connected by points a-g-f) has one end connected with the first connection point 1122b1; and the second tearing line 1122d (equivalent to a line connected by points c-d-e) has one end connected with the second connection point 1122b2. In addition, in FIG. 2A, the first tearing line 1122c has another end (i.e., point f) is connected with the other end (i.e., point e) of the second tearing line 1122d, thereby completing the closed first tearing area 1122. Consequently, when the user holds the lifting part to lift up an peel off along the lifting part 1122a, the lifting neck 1122b, the first tearing line 1122c and the second tearing line 1122d, the first tearing area 1122 can be torn to open entirely so as to achieve the technical effect of partially opening the closure liner.

[0065]On the other hand, as shown in FIG. 2A, the hollow area 1121 is formed by means of cutting the secondary cutting line 9b and is located at the outer periphery of the lifting part 1122a. Moreover, the hollow area 1121 is the portion removed from the functional layer such that the hollow area 1121 has a thickness smaller than the pinch-pull type closure liner whereby the nails and fingertips of the user's fingers can poke a lower part of the lifting part and open it. Further, the hollow area 1121 is connected with two sides of the lifting neck 1122b; taking FIG. 2A as an example, one end of the hollow area 1121 is connected with the first connection point 1122b1 (i.e., point a) of the lifting neck 1122b, and the other end of the hollow area 1121 is connected with the second connection point 1122b2 (i.e., point c) of the lifting neck 1122b.

[0066]Next, as an embodiment of the pinch-pull type closure liner (including the main cutting line) of the present invention, to achieve the technical effect of tearing open in two stages, as shown in FIG. 2B, the upper surface of the surface film 11 of the functional layer (i.e., the upper surface of the pinch-pull type closure liner 100) is provided with a main cutting line 9a, the main cutting line 9a divides the surface film 11 into an outer ring 111 and an inner ring 112, and an inner side of the outer ring 111 is surrounded by and connected with an outer side of the inner ring 112. In the process of lifting and tearing the pinch-pull type closure liner 100 with the fingers, the outer ring 111 is not damaged and can be pressed and sealed on the container mouth again.

[0067]Further, as shown in FIG. 2B, the inner ring 112 is composed of a hollow area 1121, a first tearing area 1122 and the other areas. Specifically, the hollow area 1121 refers to an area surrounded by points a-b-c-i-a; and the hollow area 1121 is not torn to open along with the tearing open of the first tearing area 1122 but is torn to open as a portion of the second tearing area 1123 at the opening of the second stage; the first tearing area 1122 refers to an area surrounded by a-b-c-d-e-f-g-a. In addition, the second tearing area 1123 is equivalent to an area of the main cutting line 9a and the inner ring 112 excluding the first tearing area 1122; that is to say, the second tearing area 1123 includes the hollow area 1121 and the other areas.

[0068]Moreover, as shown in FIG. 2B, the other end (i.e., point f) of the first tearing line 1122c is connected with the main cutting line 9a, and the other end (i.e., point e) of the second tearing line 1122d is also connected with the main cutting line 9a.

[0069]In this way, when the user holds the lifting part 1122a by hand and pulls up and peel off it along the lifting part 1122a, the lifting neck 1122b, the first tearing line 1122c and the second tearing line 1122d, so that the first tearing area 1122 is torn apart entirely, and thus the closure liner presents a fan-shaped opening.

[0070]Next, as long as the user pinches a part of the second tearing area 1123 (for example, pinching point g) with fingers, the second tearing area 1123 can be further torn apart, so that the closure liner is opened to the maximum, leaving only the part of the outer ring 111. In this way, the effect of tearing off the closure liner in two stages can be achieved.

[0071]Moreover, in the present embodiment, the main cutting line 9a has at least three breakpoints, and the first tearing line 1122c and the second tearing line 1122d have at least three breakpoints in total, so that even though the functional layer 1 is cut off or the hollow area is cut off, each of the blocks of the functional layer 1 can still be connected at the breakpoints and will not be scattered. In addition, in another embodiment, an end part of the upper surface of the functional layer 1 corresponding to the breakpoints is not cut in the vertical direction from 0.02 mm to 0.9 mm along the horizontal direction of the main cutting line 9a, the first tearing line 1122c and/or the second tearing line 1122d, and the part of the functional layer 1 corresponding to the main cutting line 9a, the first tearing line 1122c and/or the second tearing line 1122d is completely cut except for the breakpoints. In this way, when the user pinched and lifted the lifting part by hand and tore it to the breaking point along the tearing line, a short pause in the tearing action will be formed, so as to continue to accumulate the increased tearing force and be more conducive to subsequent tearing; in addition, during the processing, the existence of breakpoints also pulls the lifting part and the lifting neck from sagging down or floating up, so as to avoid poor quality during the processing.

[0072]In addition, in the present embodiment, the secondary cutting line 9b (equivalent to the line connected by the points a-b-c-i-a) does not have a breakpoint, so that after the functional layer 1 is cut out a contour line of the hollow area, the material residues of the hollow area can easily be taken away from the functional layer 1.

[0073]Similarly, as a practicing embodiment for the technical effect of tearing open in two stages, in FIG. 3, the inner ring 112 is composed of a hollow area 1121, a first tearing area 1122 and the other areas. Specifically, the hollow area 1121 is the area surrounded by points a-b-c-d-e-a; and the hollow area 1121 is not torn to open along with the tearing open of the first tearing area 1122 but is torn to open as a portion of the second tearing area 1123 at the opening of the second stage; the first tearing area 1122 is the area surrounded by a line formed by points a-b-c-d-e-a and a line formed by points a-f-g-h-i-j-k-f. In addition, the second tearing area 1123 is equivalent to the area of the main cutting line 9a and the inner ring 112 excluding the first tearing area 1122; that is to say, the second tearing area 1123 includes the hollow area 1121 and the other areas.

[0074]Next, in FIG. 3, the lifting part 1122a is equivalent to a quasi-circular area surrounded by points a-b-c-d-a; the lifting neck 1122b is equivalent to an area surrounded by points a-d-e-f-a, and has a first connection point 1122b1 (i.e., point d) and a second connection point 1122b2 (i.e., point a); the first tearing line 1122c (equivalent to a line connected by points d-e-a) is connected with the first connection point 1122b1 at one end; and the second tearing line 1122d (equivalent to a line connected by points a-f-g-h-i-j-k-f) is connected with the second connection point 1122b2 at one end.

[0075]Further, as shown in FIG. 3, the other end of the first tearing line 1122c is connected to point d of the first connection point 1122b1, and the other end of the second tearing line 1122d is also connected to point a of the second connection point 1122b2. In this way, when the user holds the lifting part by hand and pulls up and peels off along the lifting part 1122a, the lifting neck 1122b, the first tearing line 1122c and the second tearing line 1122d, the first tearing area 1122 is torn apart entirely.

[0076]In addition, in the present embodiment, the secondary cutting line 9b is equivalent to a line connected by points a-e-d-c-b-a-f-g-h-i-j-k-f. The secondary cutting line 9b starts from point a and passes through a-e-d-c-b-a-f-g-h-i-j-k-f, and the secondary cutting line is formed by cutting by a die cutter in a continuous forming manner. The hollow area 1121 is formed by cutting a part of line (a line connected by points c-d-e-a-b-c) of the secondary cutting line 9b, and located at a periphery of the lifting part 1122a, and a thickness of which is less than that of the pinch-pull type closure liner. The main cutting line 9a has at least three breakpoints and is equivalent to a line connected by points i-j-l-h-i. Moreover, the hollow area 1121 is connected with two sides of the lifting neck 1122b, taking FIG. 3 as an example, one end of the hollow-out area 1121 is connected with the first connection point 1122b1 (i.e., point d) of the lifting neck 1122b, and the other end of the hollow-out area 1121 is connected with the second connection point 1122b2 (i.e., point a) of the lifting neck 1122b.

[0077]Next, in the present embodiment, the second tearing line 1122d has at least three breakpoints in total, so that even though the functional layer 1 is cut off or the hollow area is cut off, each of the blocks of the functional layer 1 can still be connected at the breakpoints and will not be scattered. In addition, in another embodiment, the periphery of the lifting part 1122a (equivalent to a line formed by points a-b-c-d-a) does not have a breakpoint, so that after the functional layer 1 is cut out a contour line of the hollow area, the material residues of the hollow area can easily be taken away from the functional layer 1.

[0078]Similarly, as a practicing embodiment for the technical effect of tearing open in two stages, in FIG. 4, the inner ring 112 is composed of a hollow area 1121, a first tearing area 1122 and the other area. Specifically, the hollow area 1121 is an area surrounded by points a-b-c-g-a; and the hollow area 1121 is not torn to open along with the tearing open of the first tearing area 1122 but is torn to open as a portion of the second tearing area 1123 at the opening of the second stage. ; the first tearing area 1122 is an area surrounded by points a-b-c-d-e-f-a. In addition, the second tearing area 1123 is equivalent to an area of the main cutting line 9a and the inner ring 112 excluding the first tearing area 1122; that is to say, the second tearing area 1123 includes the hollow area 1121 and the other areas.

[0079]Next, in FIG. 4, the lifting part 1122a is equivalent to a quasi-circular area surrounded by points a-b-c-a; the lifting neck 1122b is equivalent to an area of a connection line of points a-c, and has a first connection point 1122b1 (i.e., point a) and a second connection point 1122b2 (i.e., point c); the first tearing line 1122c (equivalent to a line connected by points a-f-e) is connected with the first connection point 1122b1 at one end; and the second tearing line 1122d (equivalent to a line connected by points c-d-e) is connected with the second connection point 1122b2 at one end.

[0080]Also, as shown in FIG. 4, the other end of the first tearing line 1122c is connected to the other end of the second tearing line 1122d. In this way, when the user holds the lifting part by hand and pulls up and peels off along the lifting part 1122a, the lifting neck 1122b, the first tearing line 1122c and the second tearing line 1122d, the first tearing area 1122 is torn apart entirely.

[0081]In addition, the hollow area 1121 is formed by cutting a secondary cutting line 9b, and located at a periphery of the lifting part 1122a, and a thickness of which is less than the pinch-pull type closure liner. The main cutting line 9a is equivalent to a line connected by points j-h-i-j. Also, the hollow-out area 1121 is connected with two sides of the lifting neck 1122b, taking FIG. 4 as an example, one end of the hollow area 1121 is connected with the first connection point 1122b1 (i.e., point a) of the lifting neck 1122b, and the other end of the hollow-out area 1121 is connected with the second connection point 1122b2 (i.e., point c) of the lifting neck 1122b.

[0082]Next, in the present embodiment, the main cutting line 9a has at least three breakpoints, so that even though the functional layer 1 is cut off or the hollow area is cut off, each of the blocks of the functional layer 1 can still be connected at the breakpoints and will not be scattered. Also, the first tearing line 1122c and the second tearing line 1122d have at least one breakpoint in total, so that even though the functional layer 1 is cut off or the hollow area is cut off, each of the blocks of the functional layer 1 can still be connected at the breakpoints and will not be scattered. In addition, in the present embodiment, the secondary cutting line 9b does not to have a breakpoint, so that after the functional layer 1 is cut out a contour line of the hollow-out area, the material residues of the hollow area can easily be taken away from the functional layer 1.

Second Embodiment

[0083]Next, the disclosure further describes a second embodiment of the pinch-pull type closure liner 100′; by referring to FIG. 5A, which is a schematic cross-sectional view of the pinch-pull type closure liner 100′ of another embodiment of the present disclosure. Further, as shown in FIG. 5A, in addition to including the surface film 11, the bonding film 12, the release layer 2 and the strong adhesion layer 6, the electromagnetic induction heating layer 3 and the sealing layer 4 (a combination of the sealing film 41 and the adhesive 42) of the first embodiment, the pinch-pull type closure liner 100′ includes an adhesive 5. Moreover, in FIG. 5A, the release layer 2 and the strong adhesion layer 6 are coated above the electromagnetic induction heating layer 3.

[0084]Herein, the adhesive 5 is located between the surface film 11 and the bonding film 12, and it is a layer used to join the surface film 11 and the bonding film 12. As far as a specific aspect of the adhesive 5 is concerned, it can be the same as the adhesive 42, and will not be repeated here. Further, through the adhesive 5, the peeling strength between the surface film 11 and the bonding film 12 can be greater than 5N/15 mm.

[0085]In addition, FIG. 5B is a schematic cross-sectional view of the pinch-pull type closure liner 100″ of further embodiment of the present disclosure. Also, as shown in FIG. 5B, in addition to including the surface film 11, the bonding film 12, the release layer 2 and the strong adhesion layer 6, the electromagnetic induction heating layer 3 and the sealing layer 4 of the first embodiment, the pinch-pull type closure liner 100″ includes an adhesive 5. Also, in FIG. 5B, except for applying the release layer 2 and the strong adhesion layer 6 underneath the bonding film 12, the examples and action of the other layers are the same as those in FIG. 5A.

[0086]In addition, FIG. 5C is a schematic cross-sectional view of the pinch-pull type closure liner 100″′ of still another embodiment of the present disclosure. Further, as shown in FIG. 5C, in addition to including the surface film 11, the bonding film 12, the release layer 2 and the strong adhesion layer 6, the electromagnetic induction heating layer 3 and the sealing layer 4 of the first embodiment, the pinch-pull type closure liner 100″′ includes an adhesive 5, wherein the adhesive 5 can be used to join the surface film 11 and the bonding film 12 as well as the bonding film 12 and the electromagnetic induction heating layer 3, the release layer 2 and the strong adhesion layer 6 are located between the electromagnetic induction heating layer 3 and the sealing layer 4, and the release layer 2 and the strong adhesion layer 6 are applied underneath the electromagnetic induction heating layer 3, the examples and action of the other layers are the same as those in FIG. 5A.

Modified Variation

[0087]In the following, the modified variation of the present disclosure will be illustrated, and the modified variation is mainly for the improvement of the functional layer. Specifically, referring to FIG. 6, which is a schematic cross-sectional view of the functional layer 1′ of the modified variation of the present disclosure.

[0088]First, as shown in FIG. 6, the functional layer 1′ includes: a surface film 11, a foaming film 13, a foaming board film 14, a lamination film 15 and a bonding film 12 from top to bottom, wherein the surface film 11 and the bonding film 12 are the same as the foregoing embodiment, and are not repeated herein.

[0089]Here, although the foaming film 13 and the foaming board film 14 are shown in FIG. 6, the foaming film 13 and the foaming board film 14 are optional structures in the modified variation, and both may exist at the same time or only one of them exists. Moreover, the order of the foaming film 13 and the foaming board film 14 shown in FIG. 6 is only an example, and it can also be that the foaming board film 14 is above the foaming film 13. Next, the foaming film 13 is EPE or EPP with a thickness of 60 to 3000 μm and the foaming film 13 is thinner and can serve to fill the gap between the bottle and cap. In addition, the foaming board film 14 is EPE or EPP with a thickness of 0.3 to 5 mm, which can produce a thickening effect to increase the cushioning performance of the pinch-pull type closure liner, so as to avoid damage to the structure of the pinch-pull type closure liner due to accidental collisions.

[0090]In addition, although the lamination film 15 is shown in FIG. 6, the lamination film 15 is an optional structure in the modified variation. Here, the lamination film 15 is at least one of the group consisting of PI, PEN, PET, PP, PA, and PE and has a thickness of 12 to 150 μm, thereby increasing the tensile strength of the pinch-pull type closure liner. Further, the surface film 11 and the bonding film 12 therebetween may further include an additional lamination foaming film (not shown in the figure), which is EPE or EPP with a thickness of 40 to 3000 μm. The lamination foaming film is thinner and can serve to fill the gap between the bottle and cap. Also, the lamination film and the lamination foaming film may exist at the same time or only one of them exists.

[0091]In addition, although it is not shown in the figures, the layers of the functional layer of the modified variation may be combined in various ways (such as bonding, joining or connecting, etc.).

Wireless Information Integrated Flake

[0092]Next, the wireless information integrated flake that can be used as the electromagnetic induction heating layer of the present disclosure will be described.

[0093]First, referring to FIG. 7, FIG. 7 is a schematic cross-sectional view of the wireless information integrated flake 100w of an embodiment of the present disclosure. As shown in FIG. 7, the wireless information integrated flake 100w of an embodiment of the present disclosure includes: a base film 1w; a first adhesive layer 2w; an information and heating layer 3w. Among them, the first adhesive layer 2w is located between the base film 1w and the information and heating layer 3w, for joining the base film 1w and the information and heating layer 3w. Each layer is described in detailed below.

[0094]The base film 1w is used to make an initial layer of the wireless information integrated flake. In one embodiment, the material of the base film 1w may be selected from at least one of the group consisting of PI, PEN, PET, PC, PP and PE. Further, a thickness of the base film 1w is preferably 20 to 150 μm, and in the range, the longitudinal and transverse tensile strength are large relatively. In addition, as shown in FIG. 7, a lower surface of the base film 1w is joined with the first adhesive layer 2w, and an upper surface of the base film 1w can be used as a printing surface to print different patterns.

[0095]The first adhesive layer is a layer used to join the base film and the information and heating layer. In one embodiment, the first adhesive layer 2w only needs to be able to join the base film 1w and the information and heating layer 3w, the material of the first adhesive layer may be composite adhesive. Further, a thickness of the first adhesive layer 2w may be 0.5 to 7 μm, which can make the peeling strength between the two layers of material joined to be greater than 4N/15 mm.

[0096]The information and heating layer 3w includes an information area 31w and an electromagnetic induction heating ring 32w. The information area 31w has a function of wireless information reading and writing transmission, so as to facilitate the traceability and tracking of subsequent products. Among them, the information area 31w has an antenna 312w and a chip 311w to be mutually conducted. Moreover, the electromagnetic induction heating ring 32w can use electromagnetic induction to generate heat through the electromagnetic field generated by the electromagnetic induction sealing machine, so that the sealing layer of the closure liner is melted by heat and adheres to the container mouth of the container, and thus can be used as an electromagnetic induction closure liner to seal the container mouth. By including the wireless information integrated flake of the present disclosure, most of the heat can be generated in the electromagnetic induction heating ring 32w, and there is only very little heat conducted in at least one physical connection bridge 33w between the antenna 312w and the electromagnetic induction heating ring 32w. Among them, a length of the physical connection bridge 33w may be 0.1 mm-3 mm, a width of the physical connection bridge 33w may be 0.01 mm-5 mm, and the material of the physical connection bridge 33w may be the same as that of the antenna 312w. In this way, a large amount of heat can be blocked from being transferred to the center area of the closure liner during electromagnetic induction sealing, and energy waste can be prevented. Further, when the information and heating layer 3w is applied to closure liners containing batteries, a thickness of the information and heating layer 3w may be from 6 μm to 2.5 mm; when the information and heating layer 3w is applied to closure liners without batteries, the thickness of the information and heating layer 3w may be from 6 μm to 300 μm.

[0097]Next, FIG. 8A is a schematic plan view of the information and heating layer of an embodiment of the present disclosure, and FIG. 8B is a schematic plan view of the information and heating layer of another embodiment of the present disclosure, and as shown in FIG. 8A or 8B, the electromagnetic induction heating ring 32w is around the information area 31w in a plan viewing angle; also, as shown in FIG. 8A, a spacing ITV fully occupies the position between the electromagnetic induction heating ring 32w and the information area 31w, that is, there is no element for physical connection (such as the physical connection bridge described later) between the electromagnetic induction heating ring 32w and the information area 31w. Therefore, by filling the spacing ITV between the electromagnetic induction heating ring 32w and the information area 31w, the filled spacing ITV can block the heat conduction to the information area 31w when the electromagnetic induction heating occurs, so it is a preferred aspect. Also, the spacing ITV (the space between the outermost edge of the information area and the innermost edge of the electromagnetic induction heating ring) may be 0.1-3 mm. Next, as shown in FIG. 8B, most of the positions between the electromagnetic induction heating ring 32w and the information area 31w have a spacing ITV, the spacing ITV can block most of the heat conduction to the information area 31w when the electromagnetic induction heating occurs, and the spacing ITV (the space between the outermost edge of the information area and the innermost edge of the electromagnetic induction heating ring) may be 0.1-3 mm. In addition, there can be at least one physical connection bridge 33w (indicated as two physical connection bridges in FIG. 8B and FIG. 9B) between the antenna 312w and the electromagnetic induction heating ring 32w, a length of the physical connection bridges 33w may be 0.1mm-3 mm, and a width of the physical connection bridge 33w may be 0.01mm-5 mm. At this time, although the electromagnetic induction heating ring 32w of the closed-loop structure is electrically connected with the information area 31w, it will not reduce a distance of wireless communication too much. That is to say, the electromagnetic induction heating ring 32w and the information area 31w can be filled with a spacing ITV, and can have both the spacing ITV and the physical connection bridge 33w, or there can be no spacing (for example, the electromagnetic induction heating ring 32w and the information area 31w therebetween are filled with a physical connection bridge 33w).

[0098]In one embodiment, the material of the electromagnetic induction heating ring 32w may be metal, such as aluminum, copper, gold, silver, or tin. Also, from the point of view of the effect and cost of generating heat when subjected to a changing electromagnetic field, the electromagnetic induction heating ring 32w is preferably aluminum foil, and a thickness thereof is 6 to 40 μm.

[0099]On the other hand, as for the chip 311w, it may have a unique identification code and can be selected according to the purpose. For example, it can be a radio frequency identification near field communication (RFID_NFC) chip, a radio frequency identification high frequency (RFID_HF) chip, a radio frequency identification ultra-high frequency (RFID_UHF) chip or a radio frequency identification microwave (RFID_MW) chip, and there is no special limitation. These chips can be matched with the antenna 312w described in the following to realize wireless information communication functions.

[0100]Next, as for the antenna 312w, it is mainly used to produce signals that can be transmitted wirelessly, and the material may be metal, such as copper, silver, gold, tin or aluminum, and there is no special limitation.

[0101]Still next, FIG. 9A is a schematic plan view of the information area of an embodiment, and FIG. 9B is a schematic plan view of the information area of another embodiment. Among them, FIG. 9A corresponds to the embodiment in which the electromagnetic induction heating ring 32w and the information area 31w therebetween are filled with the spacing ITV in FIG. 8A above, and FIG. 9B corresponds to the embodiment in which most of the positions between the electromagnetic induction heating ring 32w and the information area 31w have the spacing ITV in FIG. 8B above. In addition, as shown in FIG. 9A or 9B, the information area 31w includes a chip 311w and an antenna 312w. Also, under the condition that the wireless information transmission function can be realized, the chip 311w and the antenna 312w can be arranged in FIG. 9A or 9B or other ways based on the RFID frequency band that the user wants to use, and there is no special limitation.

[0102]Furthermore, as shown in FIG. 9A or 9B, in another embodiment, an inner side of the inner edge of the electromagnetic induction heating ring 32w further includes an electromagnetic induction heating ring inner side cutting line 321w. Further, the electromagnetic induction heating ring inner side cutting line 321w preferably has a plurality of breakpoints, specifically, the electromagnetic induction heating ring inner side cutting line 321w may have four or more breakpoints; moreover, since the material of the wireless information integrated flake has a high breaking strength, the electromagnetic induction heating ring inner side cutting line 321w makes the wireless information integrated flake suitable for specific closure liners, such as the closure liner with the following characteristics: after the user pinches the lifting part with fingers to tear off the middle part of the closure liner, it will only the closure liner of the sealing ring remain at the container mouth. Also, as shown in FIG. 9A or 9B, the electromagnetic induction heating ring inner side cutting line 321w is located between the information area (including the chip 311w and the antenna 312w) and the electromagnetic induction heating ring 32w, and surrounds the information area. In one embodiment, the end part of the upper surface of the functional layer corresponding to the breakpoints is not cut in the vertical direction from 0.02 mm to 0.9 mm along the horizontal direction of the electromagnetic induction heating ring inner side cutting line 321w, the part of the wireless information integrated flake corresponding to the electromagnetic induction heating ring inner side cutting line 321w is completely cut off except for the breakpoints, and the plurality of breakpoints of the electromagnetic induction heating ring inner side cutting line 321w correspond to the plurality of breakpoints of the main cutting line 9a of the functional layer 1.

[0103]In addition, although FIG. 7 shows the situation where the base film 1w is on top and the information and heating layer 3w is at the bottom, the order of the base film 1w and the information and heating layer 3w can be reversed according to the requirements, that is, it is adjusted the base film 1w at the bottom and the information and the heating layer 3w on top.

[0104]In addition, the wireless information integrated flake can further be a wireless information integrated flake 100w′, which can be as shown in FIG. 10, in addition to the aforesaid base film 1w, the first adhesive layer 2w and the information and heating layer 3w, it further includes a protective layer 5w and a second adhesive layer 4w. Among them, the protective layer 5w is located on a side of the information and heating layer 3w away from the base film 1w. Also, the second adhesive layer 4w is located between the information and heating layer 3w and the protective layer 5w, and it is a layer used for joining the information and the heating layer 3w and the protective layer 5w.

[0105]In one embodiment, as long as the second adhesive layer 4w can be joined with the information and heating layer 3w and the protective layer 5w, the material of the second adhesive layer may be, for example, dry compound adhesive, and there is no special limitation. Further, a thickness of the second adhesive layer 4w may be 0.5 to 7 μm, which is preferably such that the peeling strength between the two layers of materials being joined is greater than 4N/15 mm. In addition, as shown in FIG. 10, the second adhesive layer 4w can be extended to fill the spacing between the electromagnetic induction heating ring 32w and the information area 31w, so as to improve the overall structural strength of the wireless information integrated flake 100w′.

[0106]Next, the protective layer 5w will be explained. The protective layer 5w is used to protect the information area 31w (i.e., the chip 311w, antenna 312w and the battery that can be added additionally) from external force damaging the chip 311w and battery and affect the wireless information transmission ability, the material thereof may be selected from at least one of the group consisting of polyethylene terephthalate (PET), polypropylene (PP), polyethylene (PE), polyamide (PA), polyvinylidene chloride (PVDC), ethylene-vinyl alcohol copolymer (EVOH), polyethylene naphthalate (PEN) and polyimide (PI). Also, in a preferred embodiment, a thickness of the protective layer 5w may be 12 to 100 μm.

[0107]In addition, the upper surface or lower surface of the protective layer 5w may be used as a printing surface. Therefore, although FIG. 10 shows the situation where the base film 1w is on the bottom and the protective layer 5w is on top (the upper surface of the protective layer 5w can be used as the printing surface), the order of the base film 1w and the protective layer 5w can be reversed according to the requirements, that is, it can be changed to a situation where the base film 1w is on top and the protective layer 5w is on the bottom (the lower surface of the protective layer 5w serves as the printing surface).

Manufacturing of Pinch-Pull Type Closure Liner

[0108]Based on the following steps, the manufacturing of a pinch-pull type closure liner of a preferred embodiment of the present disclosure will be described.

[0109]First, the surface film roll is printed to make the printed surface film roll, and next, the adhesive is coated on the lamination surface of the printed surface film roll, so that the surface film roll and the bonding film roll are dryly combined, and the functional layer roll is made in a curing chamber for 24 hours or more.

[0110]Next, the adhesive is coated on the lower surface of the electromagnetic induction heating layer roll, so that the lamination surface of the electromagnetic induction heating layer roll and the sealing film roll is dryly combined, and a combined part of the electromagnetic induction heating layer and the sealing layer is made in a curing chamber for 24 hours or more. Alternatively, as an alternative to the sealing layer, hot melt glue can be directly poured onto the lower surface of the electromagnetic induction heating layer roll to make a combined part of the electromagnetic induction heating layer and the sealing layer.

[0111]Next, the release layer is coated on the lower surface of the bonding film of the functional layer roll, and then the upper surface of the surface film is cut with a printed pattern (such as the pattern in FIGS. 2A, 2B, 3 and 4) using a die cutter to cut out the main cutting line (if necessary), the secondary cutting line, the hollow area, the first tearing area (the lifting part and the lifting neck, and the like) and the second tearing area (if necessary), etc. Among them, the coating area of the release layer is not less than the lifting part, and the hollow-area is to hollow out the thickness of the functional layer and remove it, that is, the thickness of the hollow-out area is similar to that of the combined part of the electromagnetic induction heating layer and the sealing layer.

[0112]The upper surface of the electromagnetic induction heating layer is coated with dry compound adhesive with strong adhesion (or can be coated with hot melt lamination glue with a strong peeling strength) as a strong adhesion layer, so that the electromagnetic induction heating layer and the lower surface of the bonding film coated with the release layer are dryly combined, and a pinch-pull type closure liner roll is made in a curing chamber for 24 hours or more.

[0113]Finally, the upper surface of the surface film of the pinch-pull type closure liner roll cut to cut out the pinch-pull type closure liner of the size required by the customer.

[0114]Among them, the peeling strength between the two layers of materials combined by the adhesive (such as dry compound adhesive) is greater than 4N/15 mm, and the peeling strength between the two layers of materials combined by the strong adhesion layer, measured by a standard of ASTM D903, is greater than 12N/15 mm. The temperature of the drying tunnel above the printing machine is 60 to 70° C., and the temperature of the five sections of the drying tunnel above the dry bonding machine is 60 to 65° C., 65 to 70° C., 70 to 75° C., 75 to 80° C., and 80 to 85° C. The temperature of the combining roller of the dry bonding machine is 50 to 60° C. The temperature of the curing chamber is 50 to 55° C.

[0115]On the other hand, a functional layer of a modified variation can be made based on the following steps.

[0116]First, the adhesive is coated on the surface film roll, so that it is dryly combined with the foaming film roll, and a first combining part roll is made in a curing chamber for 24 hours or more.

[0117]Secondly, the adhesive is applied on the lower surface of the foaming film of the first combining part roll, so that the first combining part roll and the upper surface of the foaming board film roll are dryly combined, a second combining part roll is made in a curing chamber for 24 hours or more.

[0118]Furthermore, the adhesive is applied on the lower surface of the combining film roll, so that it is dryly combined with the bonding film roll, and a third combining part roll is made in a curing chamber for 24 hours or more.

[0119]Finally, the adhesive is applied on the upper surface of the combining film of the third combining part roll, so that the third combining part roll and the lower surface of the foaming board film of the second combining part roll is dryly combined, and the functional layer of the modified variation is made in a curing chamber for 24 hours or more.

[0120]Among them, the peeling strength between the two layers of materials combined by the adhesive is greater than 4N/15 mm. The temperature of the five sections of the drying tunnel above the dry bonding machine is 60 to 65° C., 65 to 70° C., 70 to 75° C., 75 to 80° C., and 80 to 85° C. The temperature of the combining roller of the dry bonding machine is 50 to 60° C. The temperature of the curing chamber is 50 to 55° C.

[0121]In addition, as far as the combining method is concerned, the aforesaid dry bonding method or the conventional method of pasting and pressing can be used, there is no special restriction.

Manufacturing of Wireless Information Integrated Flake Roll

[0122]Based on the following steps, a wireless information integrated flake roll of a preferred embodiment of the present disclosure is made, and the wireless information integrated flake roll described herein may be applied to the process of making the aforesaid pinch-pull type closure liner roll as an implementing aspect in the aforesaid electromagnetic induction heating layer roll.

[0123]First, the combining surface of the base film roll is coated with composite adhesive (first adhesive layer) , and after combining it with the combining surface of the metal foil roll, a wireless information integrated flake blank roll is made. Secondly, the metal foil of the wireless information integrated flake blank roll is etched, the antenna and the chip are bonding into an electrical connection, and then the chip packaging protective adhesive is used by the dispensing machine to package the chip and the bonding wire connecting the chip and the antenna. At this time, the metal foil of the wireless information integrated flake blank roll forms the information and heating layer, and the wireless information integrated flake blank roll becomes the wireless information integrated flake roll.

[0124]Among them, the peeling strength between the two layers of materials combined by composite adhesive is greater than 4N/15 mm.

[0125]In addition, if a battery is desired to be added to the information and heating layer, a fusion welding machine or conductive adhesive can be used to process the cell and the chip into an electrical connection.

[0126]On the other hand, on the basis of the aforesaid wireless information integrated flake roll, dry compound adhesive (a second adhesive layer) is applied on the combining surface of the protective layer roll, and is dryly bonded with a surface (a surface away from the base film) of the information and heating layer of the wireless information integrated flake roll, and the wireless information integrated flake roll related to another embodiment can be made in the curing chamber for 24 hours or more.

[0127]Among them, the peeling strength between the two layers of materials combined by dry compound adhesive is greater than 4N/15 mm; The temperature of the five sections of the drying tunnel above the dry bonding machine is 60 to 65° C., 65 to 70° C., 70 to 75° C., 75 to 80° C., and 80 to 85° C. The temperature of the combining roller of the dry bonding machine is 50 to 60° C. The temperature of the curing chamber is 45 to 60° C.

[0128]It should be noted that the above description is only an embodiment, and the order in which the above layers are made is not specifically limited. Also, although the fabrication of a pinch-pull type closure liner with a two-layer structure of the functional layer mainly containing a surface film and a bonding film is illustrated herein, the functional layer of the modified variation can also be used as a substitute for the aforesaid two-layer structure of the functional layer, and other combining methods (bonding, joining, coating, film laminating, connecting, etc.) can be used as an alternative to dry combining.

[0129]Furthermore, in order to clarify the embodiments covered by the pinch-pull type closure liner of the present application, other particular examples would be presented to further describe other variational forms on the upper surface of the pinch-pull type closure liner. With reference to FIG. 11A to FIG. 11C, FIG. 11A to FIG. 11C are schematic top views for illustrating the pinch-pull type closure liner 50 of other embodiment of the present disclosure. It is to be noted that the following is described for the variational parts for such as the lifting part, the lifting neck, the hollow area, the first tearing line, and the second tearing line; since the rest content may be substantially the same as those shown in FIGS. 2A, 2B, 3 and 4, the descriptions thereof are omitted here.

[0130]As shown in FIG. 11A, the upper surface of the surface film of the pinch-pull type closure liner 50 (i.e., the upper surface of the pinch-pull type closure liner 50) is provided with a first tearing area 1122, a hollow area 1121, a first tearing line 1122c, a second tearing line 1122d and a secondary cutting line 9b. Also, the first tearing line 1122c is equivalent to a line connected by points a-l-m-n, and the second tearing line 1122d is equivalent to a line connected by points d-e-o-p. Moreover, in FIG. 11A, the first tearing area 1122 includes: a lifting part 1122a, which is equivalent to a quasi-circular area surrounded by points a-b-c-d-a; the lifting neck 1122b (equivalent to an area between a line connected by points k-f and a line connected by points a-d), which is connected with the bottom end of the lifting part 1122a and has a first connection point 1122b1 (i.e., point a) and a second connection point 1122b2 (i.e., point d). Here, the first tearing line 1122c (equivalent to a line connected by points a-l-m-n) has one end connected with the first connection point 1122b1, and the second tearing line 1122d (equivalent to a line connected by points d-e-o-p) has one end connected with the second connection point 1122b2. In addition, in FIG. 11A, the first tearing line 1122c has the other end (i.e., point n) that is connected with the outermost cutting line of the pinch-pull type closure liner 50, and the second tearing line 1122d has the other end (i.e., point p) that is also connected with the outermost cutting line of the pinch-pull type closure liner 50, thereby completing the closed first tearing area 1122. Consequently, when the user holds the lifting part to lift up and peel off it along the lifting part 1122a, the lifting neck 1122b, the first tearing line 1122c and the second tearing line 1122d, the first tearing area 1122 can be torn to open entirely so as to achieve the technical effect of partially opening the closure liner.

[0131]On the other hand, as shown in FIG. 11A, the hollow area 1121 is formed by means of cutting the secondary cutting line 9b, which is equivalent to a line connected by points a-b-c-d-e-f-g-h-i-j-k-l-a and is located at the outer periphery of the lifting part 1122a. Moreover, the hollow area 1121 is the portion removed from the functional layer such that the hollow area 1121 has a thickness smaller than the pinch-pull type closure liner whereby the nails and fingertips of the user's fingers can poke a lower part of the lifting part and open it. Further, the hollow area 1121 is connected with two sides of the lifting neck 1122b; taking FIG. 11A as an example, one end (i.e., point k) of the hollow area 1121 is connected with the first connection point 1122b1 (i.e., point a) of the lifting neck 1122b, and the other end (i.e., point f) of the hollow area 1121 is connected with the second connection point 1122b2 (i.e., point d) of the lifting neck 1122b.

[0132]As an embodiment of the pinch-pull type closure liner (including the main cutting line) of the present disclosure, to achieve the technical effect of tearing open in two stages, as shown in FIG. 11B, the upper surface of the surface film 11 of the functional layer (i.e., the upper surface of the pinch-pull type closure liner 50) is further provided with a main cutting line 9a that divides the surface film 11 into an outer ring 111 and an inner ring 112, and an inner side of the outer ring 111 is surrounded by and connected with an outer side of the inner ring 112. In the process of lifting and tearing the pinch-pull type closure liner 50 with the fingers, the outer ring 111 is not damaged and can be pressed and sealed on the container mouth again.

[0133]Further, as shown in FIG. 11B, the inner ring 112 is composed of a hollow area 1121 a first tearing area 1122 and the other areas. Specifically, the hollow area 1121 refers to an area surrounded by points a-b-c-d-e-f-g-h-i-j-k-a. The hollow area 1121 is not torn to open along with the tearing open of the first tearing area 1122 but is torn to open as a portion of the second tearing area 1123 at the opening of the second stage. The first tearing area 1122 refers to an area surrounded by a-b-c-d-e-n-m-l-k-a. In addition, the second tearing area 1123 is equivalent to an area of the main cutting line 9a and the inner ring 112 excluding the first tearing area 1122; that is to say, the second tearing area 1123 includes the hollow area 1121 and the other areas.

[0134]Moreover, as shown in FIG. 11B, the other end (i.e., point m) of the first tearing line 1122c (equivalent to a line connected by points a-k-l-m) is connected with the main cutting line 9a, and the other end (i.e., point m) of the second tearing line 1122d (equivalent to a line connected by points d-e-n-m) is also connected with the main cutting line 9a.

[0135]In this way, when the user holds the lifting part by hand and pulls up and peels off it along the lifting part 1122a (equivalent to an area surrounded by points a-b-c-d-a), the lifting neck 1122b (equivalent to an area between a line connected by points j-f and a line connected by points a-d), the first tearing line 1122c and the second tearing line 1122d, so that the first tearing area 1122 is torn apart entirely, and thus the closure liner presents a fan-shaped opening.

[0136]Next, as long as the user pinches a part of the second tearing area 1123 (for example, pinching point f) with fingers, the second tearing area 1123 can be further torn apart, so that the closure liner is opened to the maximum, leaving only the part of the outer ring 111. In this way, the effect of tearing off the closure liner in two stages can be achieved.

[0137]Moreover, in the present embodiment, the main cutting line 9a has at least three breakpoints, and the first tearing line 1122c and the second tearing line 1122d have at least three breakpoints in total, so that even though the functional layer 1 is cut off or the hollow area is cut off, each of the blocks of the functional layer 1 can still be connected at the breakpoints and will not be scattered. In addition, in another embodiment, an end part of the upper surface of the functional layer 1 corresponding to the breakpoints is not cut in the vertical direction from 0.02 mm to 0.9 mm along the horizontal direction of the main cutting line 9a, the first tearing line 1122c and/or the second tearing line 1122d, and the part of the functional layer 1 corresponding to the main cutting line 9a, the first tearing line 1122c and/or the second tearing line 1122d is completely cut except for the breakpoints. In this way, when the user pinched and lifted the lifting part by hand and tore it to the breaking point along the tearing line, a short pause in the tearing action will be formed, so as to continue to accumulate the increased tearing force and be more conducive to subsequent tearing; in addition, during the processing, the existence of breakpoints also pulls the lifting part and the lifting neck from sagging down or floating up, so as to avoid poor quality during the processing.

[0138]In addition, in the present embodiment, the secondary cutting line 9b (equivalent to the line connected by the points a-b-c-d-e-f-g-h-i-j-k-a) does not have a breakpoint, so that after the functional layer 1 is cut out a contour line of the hollow area, the material residues of the hollow area can easily be taken away from the functional layer 1.

[0139]Similarly, as shown in FIG. 11C, the upper surface of the surface film of the pinch-pull type closure liner 50 (i.e., the upper surface of the pinch-pull type closure liner 50) is provided with a first tearing area 1122, a hollow area 1121, a first tearing line 1122c, a second tearing line 1122d and a secondary cutting line 9b. Also, the first tearing line 1122c is equivalent to a line connected by points a-l-m-n, and the second tearing line 1122d is equivalent to a line connected by points d-e-o-p. Moreover, in FIG. 11C, the first tearing area 1122 includes: a lifting part 1122a, which is equivalent to a quasi-circular area surrounded by points a-b-c-d-a; the lifting neck 1122b (equivalent to an area between a line connected by points k-f and a line connected by points a-d), which is connected with the bottom end of the lifting part 1122a and has a first connection point 1122b1 (i.e., point a) and a second connection point 1122b2 (i.e., point d). Here, the first tearing line 1122c (equivalent to a line connected by points a-l-m-n) has one end connected with the first connection point 1122b1, and the second tearing line 1122d (equivalent to a line connected by points d-e-o-p) has one end connected with the second connection point 1122b2. In addition, in FIG. 11C, the first tearing line 1122c has the other end (i.e., point n) that is connected with an inner cutting line 9c of the pinch-pull type closure liner 50, and the second tearing line 1122d has the other end (i.e., point p) that forms the open end, where the inner cutting line 9c is used to distinguish the closed first tearing area 1122 from the second tearing area 1123. Consequently, when the user holds the lifting part to lift up and peel off it along the lifting part 1122a, the lifting neck 1122b, the first tearing line 1122c and the second tearing line 1122d, the first tearing area 1122 can be torn to open entirely so as to achieve the technical effect of partially opening the closure liner.

[0140]Next, after the first tearing area 1122 is torn to open entirely, the closure liner will present a circular opening. Then, as long as the user pinches a part of the second tearing area 1123 (for example, pinching any part of the inner cutting line 9c) with fingers, the second tearing area 1123 can be further torn apart, so that the closure liner is opened to the maximum. In this way, the effect of tearing off the closure liner in two stages can be achieved.

[0141]The present invention is not limited to the above-mentioned embodiments, and various changes may be made within the scope indicated in the claims, and the embodiments obtained by appropriately combining the technical means disclosed in the different embodiments are also included in the technical scope of the present invention.