Abstract: A process (100, 101) for the production of spunbonded nonwoven (1) and a device (200, 201) are shown, comprising an embossing pattern (10), wherein a spinning mass (2) is extruded through a plurality of nozzle holes of at least one spinneret (3, 30) to form filaments (4, 40) and the filaments (4, 40) are drawn by a drawing air stream (5, 50), in each case, in the extrusion direction, with the filaments (4, 40) being deposited on a perforated tray (7) of a conveying device (8) to form a spunbonded nonwoven (1). So as to allow an efficient, technically simple and inexpensive introduction of the embossing pattern into the spunbonded nonwoven, it is suggested that the perforated tray (7) has an embossing structure (9) with an embossing pattern (10), the filaments (4, 40) are pressed into the embossing structure (9) by the drawing air stream (5, 50) and the spunbonded nonwoven (1) thus formed is provided with the embossing pattern (10).

Abstract: The present invention provides a lyocell fiber with increased water retention value and decreased crystallinity as well as a method for producing same and products comprising same.

Abstract: What is shown is a method for the recovery of raw materials from blended textile wastes, which includes the following steps in the given order: a) providing blended textile waste that includes at least a cellulose component and at least a polyester component, b) treating the blended textile waste in an aqueous treatment solution in order to depolymerize the polyester component and dissolve it in the treatment solution, c) separating the cellulose component from the treatment solution and recovering a cellulose raw material, d) filtering the treatment solution in order to remove foreign substances, particularly dyes and metal ions, from the treatment solution, and e) precipitating terephthalic acid from the treatment solution, separating the precipitated terephthalic acid, and recovering a terephthalic-acid-including polyester raw material.

Abstract: The invention relates to a process for the production of spunbonded nonwoven and a device for the production of spunbonded nonwoven, wherein, in the process, a spinning mass is extruded through a plurality of nozzle holes to form filaments, the filaments are drawn in the extrusion direction, precipitated at least partially by being subjected to a coagulation air stream comprising a coagulation liquid and deposited to form the spunbonded nonwoven.

Abstract: A method of producing lyocell filaments employs a steam heatable spinneret having a rectangular shape with an aspect ratio of more than 2 and comprising at least a top housing and a nozzle frame. The spinneret is heated and used for spinning cellulosic filaments from a cellulose solution in a solvent. A lyocell process employs the spinneret.

Abstract: Silk woven fabric is known and renowned for its touch. The drawback of silk, however, is its price, its poor washability, and low resistance against certain chemical treatments. It is therefore the object of the invention to provide a silk-like woven fabric which overcomes these problems. According to the invention, this problem is solved by providing a silk-like woven fabric (2) made from weft yarns (4) and warp yarns (6), wherein at least one of the weft yarns (4) and the warp yarns (6) contains or consists of lyocell filaments (8). Especially twisted lyocell filament yarns are used, the resulting material has a touch comparable to silk and physical properties that are equal to or even surpass those of silk. Moreover, the lyocell filament yarns (4, 6) may have a higher twist than silk yarns, other cellulose yarns, or synthetic yarns.

Abstract: A process (100) for the recovery of solvent (1) from solvent-containing cellulosic particles (2) is shown, the process comprising the steps: a) extracting the solvent (1) from the cellulosic particles (2) by means of a liquid extraction medium (3), thereby obtaining a solvent-enriched extraction medium (5), and b) obtaining the recovered solvent (6) from the solvent-enriched extraction medium (5). In order to improve the efficiency of the process, it is proposed that in step a) the solvent (1) is extracted from the cellulosic particles (2) in a continuous flow extraction reactor (4), wherein the extraction medium (3) continuously flows through the extraction reactor (4) to extract the solvent (1) from the cellulosic particles (2).

Abstract: The present invention relates to a high-tenacity cellulosic regenerated fiber with an individual fiber titer of between 0.6 and 0.9 dtex and yarns and planar textile structures which contain regenerated fibers of this kind.

Abstract: The present invention provides a process for the viable production of lyocell cellulose continuous filament yarns at very high production speeds.

Abstract: The present invention relates to a method for cleaning a spunbonding spinneret for the production of cellulosic spunbonded nonwoven fabric from a solution of cellulose in an aqueous organic solvent by extruding the solution through nozzle holes of the spunbonding spinneret to form filaments and stretching the filaments in the direction of extrusion by means of a gas stream, during which method contaminations containing cellulose will accumulate on the spinneret surface. The method according to the invention comprises the steps of: a) spraying the contamination with an aqueous fluid precipitating the cellulose; and b) detaching and carrying away the contamination by means of the gas stream.

Abstract: A method of producing a chemical pulp from a textile material which comprises cellulose for manufacturing regenerated cellulosic molded bodies, wherein in the method the textile material is comminuted, at least a part of non-fiber-constituents of the comminuted textile material is separated from fiber-constituents of the comminuted textile material, at least a part of non-cellulosic fibers of the fiber-constituents is mechanically separated from cellulosic fibers of the fiber-constituents, at least a further part of the non-cellulosic fibers is chemically separated from the cellulosic fibers, and producing regenerated molded bodies from the chemical pulp based on the cellulosic fibers after mechanically separating and chemically separating.

Abstract: The invention concerns a hygiene product comprising at least one layer of a nonwoven wherein the nonwoven layer comprises man-made cellulosic fibers wherein the layer or the layers has or have a rewet value of equal to or less than 30% and a liquid strike through time of equal to or less than 6 seconds for the use in disposable hygiene products, such as diapers, feminine pads and incontinence products or in wet wipes like toilet wipes, facial wipes, cosmetic wipes, baby wipes and sanitary wipes for cleaning and disinfection.

Abstract: The present invention relates to a fiber of the Lyocell type which has a titer of from 0.8 dtex to 3.3 dtex and is characterized by the following relationships: Höller factor F2?1, preferably ?2 Höller factor F1??0.6 Höller factor F2?6 and Höller factor F2 minus 4.5*Höller factor F1?1, preferably ?3. The fiber according to the invention displays a specific combination of properties with regard to the Höller factors, the flexibility and the abrasion resistance within a planar assembly. Hence, the fiber shows a behavior more similar to viscose and can be processed in the textile chain according to viscose standard methods.

Abstract: The invention relates to stabilized luminophores and in particular to the use thereof in and on textile goods.

Abstract: The invention relates to a process for filtration of fluids, especially of aqueous media, by means of a backflush filter apparatus consisting of a cylindrical housing, a cylindrical and perforated support body installed coaxially therein, a filter material, a support fabric, and a mobile backflush device present therein, said process enabling improved removal of fine and ultrafine particles, and of particles with greasy or compressible consistency, and allowing higher solid concentrations. The process according to the invention has the steps below. a) Formation of a filtercake in the perforation of the support body; b) deposition of the relatively fine particles or of the particles with greasy or compressible consistency on or in the filtercake; c) backflushing after attainment of the predefined filter loading or of the maximum permissible pressure differential, or when the filtrate volume flow goes below a minimum.

Abstract: The invention relates to a process for producing a dissolving pulp from a cellulosic starting material using the kraft process, comprising the step of cooking the starting material with a cooking liquor. The process according to the invention characterized in that the starting material is exposed to a steam treatment prior to cooking and that the pulp obtained by cooking is subjected to cold caustic extraction (CCE) in the course of further processing.

Abstract: The present invention relates to the preparation of a cellulose suspension, particularly of a premixture for the preparation of a cellulose suspension in organic solvents such as an aqueous N-methylmorpholine N-oxide (NMMO) solution.

Abstract: This invention relates to the use of Lyocell fibers with a tendency to fibrillate for the manufacture of a nonwoven fibrous web material, in particular for the use in a wipe, by using a foam technique.

Abstract: The present invention relates to fibrillated lyocell fibers which have a fibrillation quotient Q of 20 or more and whose content of microfibers with a fineness of less than 14 mesh and a diameter of less than 2 ?m is at least 50%, as well as the use thereof for producing a wipe, which contains pulp and 5 to 20 wt. % of fibrillated lyocell fibers.

Abstract: The present invention relates to a phase-stable suspension of cellulose II in water, having a high water retention capacity and a cellulose concentration between 0.1 and 5.0% by weight, a method of its preparation, and its use.