Abstract: The present invention relates to a textile light-protective material composed of a microfilament non-woven fabric having a mass per unit area of 20 to 300 g/m2, in which the non-woven fabric is made of melt-spun and drawn multicomponent continuous filaments having a titer of 1.5 to 5 dtex that are deposited immediately to form a non-woven material and at least 80% of the multicomponent continuous filaments, after an optional pre-bonding, are split to form continuous microfilaments having a titer of 0.05 to 2.0 dtex and are bonded.

Abstract: A method for manufacturing a synthethic leather includes the steps of obtaining a polyurethane prepolymer from isocyantates and linear hydroxyl-terminated polyols having molecular weights of 500 to 5,000 g/mol, wherien the isocyanates include at least one of aliphatic, cyclophatic, and non-aromatic heterocyclic di- and or tri-isocyanates. A first aqueaous dispersion of the polyurethane prepolymer is provided and mixed with a second aqueous dispersion or solution of a catalyst and at least one cross-linking constituent so as to create a mixture. The method further includes impregnating a textile fabric with the mixture and drying and reacting the prepolymers to completion at a temperature from 80 to 180° C. In addition, a synthetic letter manufactured according to the method.

Abstract: A synthetic leather made of a nonwoven fabric impregnated and/or coated with a polymer, with a surface weight of 100 to 500 g/m2, and a tensile strength greater than 300 N/5 cm in the lengthwise and the crosswise direction, where the nonwoven fabric is made up of melt-spun multi-component endless filaments, aerodynamically stretched and directly laid up to form a nonwoven material, having a titer less than 2 dTex, and wherein the multi-component endless filaments, after preliminary bonding, are split and bonded by at least 90% to produce supermicro endless filaments having a titer less than 0.2 dTex.

Abstract: A splittable yarns, fiber or filaments and a method and device for their production. The yarns, fiber or filaments includes at least two elementary filaments of a first polymer A and each second elementary filament is sheathed with a second polymer B.

Abstract: A mat for the computer input device known as a mouse (mouse pad) has at least one woven or knit layer or one layer of non-woven fabric made of bi-component or multi-component fibers or filaments split to form microfibers or microfilaments. The splitting is performed by high-pressure fluid jet treatment of the surface.

Abstract: A method for manufacturing a fabric from at least partially split yarns, fibers or filaments, which are formed from at least two elementary filaments and originate from a common spinneret, and are formed into one fabric, which is compressed at a temperature between the glass transition temperature (Tg) and the melting temperature of the polymer(s) employed to a density of at least 10% of the density of the polymer(s) used, so that, under the subsequent action of further mechanical forces, at least a partial splitting into the elementary filaments takes place.

Abstract: A nonwoven fabric for manufacturing repeatedly re-usable clean-room protective clothing, made of super microfilaments having a titer of less the 0.2 dtex that are produced by water jet splitting multicomponent multisegment filaments having a titer of less than 2 dtex, the primary filaments being spun from the melt, aerodynamically stretched, laid to form a nonwoven fabric, and subjected to water-jet prebonding prior to splitting.

Abstract: The invention relates to a method for dyeing and/or printing textile material containing non-split and/or at least partially split micro-fibres and/or micro-filaments, composed of at least one polyamide component and optionally at least one additional polymer component. According to said method, the textile material is treated with formic acid and is dyed and/or printed using at least one dye, selected from the group containing anionic acidic dyes, metal complex dyes, reactive dyes, direct dyes and cationic dyes.

Abstract: The invention relates to yarns, fibres or filaments that can be fibrillated and to a method and device for their production. According to the invention, said yarns, fibres or filaments consist of at least two elementary filaments of a polymer A and each second elementary filament is sheathed with the polymer B.

Abstract: The invention relates to a method for producing monocomponent-microfilaments comprised of multiple component filaments, particularly bi-component filaments, which are produced in a melt spinning method, whereby one of the components is melted out of the multiple component filaments by effecting a thermal treatment using a melt fluid.

Abstract: A cleaning cloth is described made of a microfilament nonwoven weighing from 30 g/m2 to 500 g/m2, the nonwoven being made from melt-spun, stretched continuous multicomponent filaments having a titer of 1.5 to 5 dtex, which are immediately laid down to form a nonwoven, and the continuous multicomponent filaments, optionally after pre-bonding, being split at least to 80% to form continuous micro-filaments having a titer of 0.05 to 1.0 dtex and bonded.

Abstract: The present invention relates to a textile light-protective material composed of a microfilament non-woven fabric having a mass per unit area of 20 to 300 g/m2, in which the non-woven fabric is made of melt-spun and drawn multicomponent continuous filaments having a titer of 1.5 to 5 dtex that are deposited immediately to form a non-woven material and at least 80 % of the multicomponent continuous filaments, after an optional pre-bonding, are split to form continuous microfilaments having a titer of 0.05 to 2.0 dtex and are bonded.

Abstract: The invention relates to a composite material, made from a microfilament nonwoven fabric having a mass per unit area of 40 to 200 g/m2, in which a nonwoven fabric, which is made from melt-spun, drawn, multi-component endless filaments having a titer of 1.5 to 5 dtex and directly laid up to form a fibrous web, and in which the multi-component endless filaments, optionally after prebonding, are split at least to 80% to form micro-endless filaments having a titer of 0.1 to 1.2 dtex and bonded, is bonded to a thermoplastic synthetic material using an injection-molding process.

Abstract: The invention relates to a sound absorbing material, made from a microfilament nonwoven fabric having a mass per unit area of 40 to 300 g/m2, in which a nonwoven fabric is made from melt-spun, drawn, multi-component endless filament having a titer of 1.5 to 5 dtex and directly laid down to form a fibrous web; and the multi-component endless filaments, optionally after prebonding, are split at least to 80% to form micro-endless filaments having a titer of 0.1 to 1.2 dtex and bonded.

Abstract: A stretching device and method of manufacturing stretched synthetic filaments (2, 3) includes a spinning device (1) and a pneumatic drawing-off device (10). A heating device (5) is situated between the spinning device (1) and the drawing-off device (10) which heats the filaments (2, 3) to a temperature between their glass-transition temperature and their melting temperature.

Abstract: Method and apparatus for producing multi-segmented filaments are provided. In one embodiment a first polymer material is passed into a die, the first polymer material and the die being maintained under predetermined rheological conditions. Next, the first polymer material is extruded through a plurality of die openings in the die, the die openings arranged in a group, the group configured to form at least two elementary filaments. Then, the two elementary filaments are connected to one another by adhesion contact to form a multi-segmented filament. In another embodiment a die for producing multi-segmented filaments is provided. This die comprises a polymer source maintaining a polymer under predetermined rheological conditions.

Abstract: Method and apparatus for producing multi-segmented filaments are provided. In one embodiment a first polymer material is passed into a die, the first polymer material and the die being maintained under predetermined rheological conditions. Next, the first polymer material is extruded through a plurality of die openings in the die, the die openings arranged in a group, the group configured to form at least two elementary filaments. Then, the two elementary filaments are connected to one another by adhesion contact to form a multi-segmented filament. In another embodiment a die for producing multi-segmented filaments is provided. This die comprises a polymer source maintaining a polymer under predetermined rheological conditions.

Abstract: A cleaning cloth is described made of a microfilament nonwoven weighing from 30 g/m2 to 500 g/m2, the nonwoven being made from melt-spun, stretched continuous multicomponent filaments having a titer of 1.5 to 5 dtex, which are immediately laid down to form a nonwoven, and the continuous multicomponent filaments, optionally after pre-bonding, being split at least to 80% to form continuous micro-filaments having a titer of 0.05 to 1.0 dtex and bonded.

Abstract: A nonwoven lap of very fine continuous filaments, crimped or not, obtained by means of a controlled direct spinning process, with a weight between 5 g/m.sup.2 and 600 g/m.sup.2, and formed, after napping, of composite filaments separable in the direction of their length, characterized in that said composite filaments have a filament number between 0.3 dTex and 10 dTex and are formed, each, of at least three elementary filaments of at least two different materials and comprising between them at least one plane of separation or cleavage, each elementary filament having a filament number between 0.005 dTex and 2 dTex, the ratio between the cross-sectional area of each elementary filament and the total cross-sectional area of the unitary filament being between 0.5% and 90%.

Abstract: A nonwoven lap of very fine continuous filaments, crimped or not, obtained by means of a controlled direct spinning process, with a weight between 5 g/m.sup.2 and 600 g/m.sup.2, and formed, after napping, of composite filaments separable in the direction of their length, characterized in that said composite filaments have a filament number between 0.3 dTex and 10 dTex and are formed, each, of at least three elementary filaments of at least two different materials and comprising between them at least one plane of separation or cleavage, each elementary filament having a filament number between 0.005 dTex and 2 dTex, the ratio between the cross-sectional area of each elementary filament and the total cross-sectional area of the unitary filament being between 0.5% and 90%.