SOCIÉTÉ BIC

A method for manufacturing a visual display assembly, comprising: providing a film of transparent material comprising a first surface and a second surface opposite the first surface, the first surface comprising an array of lenses comprising information that is arranged so as to be capable of providing multiple images when the images are viewed from different predetermined angles through the lenses; placing a screen-printing fabric in proximity to the first surface in order to form a pattern or printed image; applying a layer of ink or varnish to the screen-printing fabric allowing the ink or varnish to pass through for placement on a portion of the first surface; wiping the ink or varnish by means of a squeegee over the screen-printing fabric.

A tip for a handheld writing instrument-includes a brass alloy comprising the following composition: Cu in an amount of from about 52 wt.-% to about 62 wt.-%, Sn in an amount of from about 0.1 wt.-% to about 1.0 wt.-%, Fe in an amount of from about 0.1 wt.-% to about 1.0 wt.-%, Si in an amount of from about 0.05 wt.-% to about 0.5 wt.-%, Ni in an amount of from about 0.05 wt.-% to about 0.5 wt.-%, Pb if present, in an amount of less than about 0.05 wt.-%, optionally other elements in a total amount of less than about 3 wt.-% (impurities), and Zn as balance.

The present invention concerns a process for preparing in situ an aqueous gel ink with fixed color comprising the following steps: (i) preparing a gel-based matrix of aqueous ink comprising reducing agent chosen in the group consisting of citric acid and/or derivatives of citric acid, (ii) adding a solution of gold salts, (iii) adding iron powder, (iv) adding polyvinylpyrrolidone to obtain an aqueous gel ink with fixed color, wherein the steps (ii) and (iii) can be interchanged. The present invention also relates to an aqueous gel ink with fixed color obtained according to the process of the invention, comprising citric acid and derivatives, gold nanoparticles, and iron powder. The invention finally concerns a writing instrument comprising an aqueous gel ink with fixed color according to the invention.

The present invention concerns a process for preparing an aqueous gel ink with fixed color comprising the following steps: (i) preparing a gel-based matrix of aqueous ink; (ii) preparing an aqueous suspension of silver nanoparticles with fixed color by mixing silver salts with: —water, —a mixture of at least an alkali metal or alkaline earth metal salt of citrate, preferably an alkali citrate salt and an alkali metal hydride, preferably NaBH4, —a further reducing agent, preferably ascorbic acid, —and oxidizing agent, preferably hydrogen peroxide H 2 O 2 (iii) adding under agitation the aqueous suspension of silver nanoparticles obtained in step (ii) to the gel-based matrix of aqueous ink obtained in step (i), to obtain an aqueous gel ink with fixed color with silver nanoparticles dispersed therein.

According to an aspect, a writing instrument is provided. The writing instrument includes a reservoir for storing writing ink, a nib arranged distally to the reservoir and in fluid communication with the reservoir, a porous membrane or mesh surrounding at least a distal portion of the nib, wherein, in a writing position, the porous membrane or mesh is configured to contact the nib, thereby allowing ink to penetrate through the porous membrane or mesh.

A lighter comprising a container suitable for containing a liquified gas or a mixture of a liquid and a gas, characterized by a compressible member which is arranged in the container.

A water based glue stick composition includes adhesive and nanocrystalline cellulose. The composition is contained in a glue stick that can be used for planar joining of substrates to one another. The substrates can include paper and/or cardboard such as printer paper, photo paper and cardboard paper.

The present invention concerns a washable aqueous ink composition comprising: a) at least one alkali metal salt of citrate, b) at least one cyclodextrin or derivative thereof, c) at least one dye. It also concerns a writing instrument comprising it and the use of the association of a) at least one alkali metal salt of citrate and b) at least one cyclodextrin or derivative thereof, to improve the washability and/or vividness of the shades of a washable aqueous ink composition.

A writing instrument having a writing tip, the writing instrument comprising a non-aqueous writing ink which is contained in a tubular ink cartridge, wherein the tubular ink cartridge has an inner diameter of between about 1 mm and about 2.5 mm, and two open ends, wherein the first open end is connected with the writing tip and the second open end is connected with the external surroundings of the writing instrument, wherein the non-aqueous writing ink contained in a tubular ink cartridge is in fluid communication with the writing tip via the first open end and with the external surroundings of the writing instrument via the second open end, and wherein the non-aqueous writing ink comprises a solvent, a resin, a coloring agent, and a gelling agent.

A handheld writing instrument which dispenses a non-aqueous pigment-based writing ink. Being based on a non-aqueous writing ink, the writing instrument is less subject to issues of ink drying due to solvent evaporation, such as build-up of dried ink on the writing ink and smearing caused by dried ink agglomerations. Due to its high-laydown characteristics, the writing instrument provides a vivid intense color impression despite the use of pigments as coloring agents.