LENZING AKTIENGESELLSCHAFT

A method of recycling a mixed textile, wherein the method comprises: i) supplying the mixed textile, wherein the mixed textile comprises cellulosic fibers and synthetic fibers, wherein the synthetic fibers comprise at least one synthetic plastic, ii) at least partially depleting the synthetic plastic from the cellulose, and iii) further processing the depleted mixed textile after depleting.

A method of manufacturing a molded body which comprises cellulose, wherein the method comprises: i) providing a starting material which comprises cellulose and elastane, in particular wherein the elastane in the starting material is present separated from the cellulose, wherein the starting material is a solid body, and ii) generating the molded body which comprises cellulose, in particular by a lyocell-method or a viscose-method, on basis of the starting material, such that the regenerated cellulosic molded body comprises at least a part of the elastane of the starting material. The part of the elastane of the starting material is incorporated in the regenerated cellulosic molded body. Furthermore, a regenerated cellulosic molded body which comprises elastane incorporated in the cellulose, and which is manufactured according to a lyocell-method or a viscose-method.

A process ( 1, 101, 201 ) for separating a fibrous target component ( 21 ) from textile waste ( 2, 5 ) is shown, said textile waste ( 2, 5 ) containing the target component ( 21 ) and at least one ancillary component ( 22 ), whereby the target component ( 21 ) consists of water-swellable textile fibers ( 51 ) with a density higher than the density of water, the process ( 1, 101, 201 ) comprising the steps: a) dispersing the comminuted textile waste ( 5 ) in an aqueous solution ( 7 ) to obtain a suspension ( 8 ) containing the textile waste ( 5 ), and b) separating the dispersed textile waste ( 5 ) into a high-density target fraction ( 81 ) comprising the target component ( 21 ), and a low-density residual fraction ( 82 ) comprising the at least one ancillary component ( 22 ), according to the respective density of said components ( 21, 22 ). In order to provide a reliable, fast process for the separation of water-swellable fibers from other textile fibers which are similar in density, it is proposed, that the aqueous solution ( 7 ) is an alkaline aqueous solution ( 7 ) and the target component fibers ( 51 ) are swelled in the alkaline aqueous solution ( 7 ) prior to step b), thereby increasing the density and weight of said target component ( 21 ) relative to the density and weight of the ancillary component ( 22 ).

Method of manufacturing a regenerated cellulosic molded body, wherein the method comprises supplying a starting material which comprises cellulose and at least one foreign matter, transferring at least a part of the starting material with at least a part of the at least one foreign matter into a spinning mass which additionally contains a solvent for solving at least a part of the cellulose of the starting material in the solvent, and extruding the spinning mass to the molded body, and subsequently precipitating in a spinning bath, wherein thereby the molded body is obtained, wherein the molded body comprises cellulose and at least a part of the at least one foreign matter.

Method of manufacturing a cellulose-regenerated-molded body, wherein the method comprises supplying a starting material which is manufactured by a lyocell-method and which comprises cellulose, which is manufactured by solving a cellulose source in a solvent for manufacturing a spinning mass, by extruding the spinning mass and by subsequently precipitating in a spinning bath, solving the starting material which comprises cellulose, in a solvent for manufacturing a spinning mass, and extruding, and subsequently precipitating the spinning mass in a spinning bath, wherein thereby the molded body is obtained.

The present invention provides a lyocell fiber with increased tendency to fibrillate, requiring a time of less than 80 minutes to obtain a 50° SR value according to ISO 5267-1: 1999 while the reduction of the working capacity [c N/tex*¾] at the 50° SR value is less than 50%, as well as a method for producing same and products comprising same.