Abstract: The invention relates to a polymer fibre with improved dispersibility, a method for producing said fibre and the use of said fibre. The polymer fibre according to the invention comprises at least one synthetic polymer and 0.1 and 20 wt. % of a silicone. The polymer forming the fibre forms a solid dispersion medium at room temperature (25° C.) for the silicone present in solid form also at room temperature (25° C.) which forms the more disperse phase. The polymer fibre according to the invention possesses an improved dispersibility and is therefore suitable for producing aqueous suspensions which are used, for example, in the formation of textile fabrics, e.g. nonwovens.

Abstract: The invention relates to a polymer fibre with improved dispersibility, a method for producing said fibre and the use of said fibre. The polymer fibre according to the invention comprises at least one synthetic polymer and 0.1 and 20 wt. % of a silicone. The polymer forming the fibre forms a solid dispersion medium at room temperature (25° C.) for the silicone present in solid form also at room temperature (25° C.) which forms the more disperse phase. The polymer fibre according to the invention possesses an improved dispersibility and is therefore suitable for producing aqueous suspensions which are used, for example, in the formation of textile fabrics, e.g. nonwovens.

Abstract: The present invention relates to a new bicomponent fiber, a nonwoven fabric comprising said new bicomponent fiber and sanitary articles made therefrom. The bicomponent fiber contains a polyethylene-based resin forming at least part of the surface of the fiber longitudinally continuously and is characterized by a Co-monomer Distribution Constant greater than about 45, a recrystallization temperature between 85° C. and 110° C., a tan delta value at 0.1 rad/sec from about 15 to 50, and a complex viscosity at 0.1 rad/second of 1400 Pa·sec or less. The nonwoven fabric comprising the new bicomponent fiber according to the instant invention are not only excellent in softness, but also high in strength, and can be produced in commercial volumes at lower costs due to higher thoughputs and requiring less energy.

Abstract: The present invention relates to a new bicomponent fiber, a nonwoven fabric comprising said new bicomponent fiber and sanitary articles made therefrom. The bicomponent fiber contains a polyethylene-based resin forming at least part of the surface of the fiber longitudinally continuously and is characterized by a Co-monomer Distribution Constant greater than about 45, a recrystallization temperature between 85° C. and 110° C., a tan delta value at 0.1 rad/sec from about 15 to 50, and a complex viscosity at 0.1 rad/second of 1400 Pa.sec or less. The nonwoven fabric comprising the new bicomponent fiber according to the instant invention are not only excellent in softness, but also high in strength, and can be produced in commercial volumes at lower costs due to higher thoughputs and requiring less energy.

Abstract: The present invention relates to a new bicomponent fiber, a nonwoven fabric comprising said new bicomponent fiber and sanitary articles made therefrom. The bicomponent fiber contains a polyethylene-based resin forming at least part of the surface of the fiber longitudinally continuously and is characterized by a Co-monomer Distribution Constant greater than about 45, a recrystallization temperature between 85° C. and 110° C., a tan delta value at 0.1 rad/sec from about 15 to 50, and a complex viscosity at 0.1 rad/second of 1400 Pa.sec or less. The nonwoven fabric comprising the new bicomponent fiber according to the instant invention are not only excellent in softness, but also high in strength, and can be produced in commercial volumes at lower costs due to higher thoughputs and requiring less energy.

Abstract: A process is described for producing thin crimped tows from LOY, POY, or FOY filaments in a total linear density from 2 ktex to 9 ktex by filament yarns being withdrawn from creeled bobbins, folded and provided with a processing finish, then drawn or tension-uniformized and thereafter heated and stufferbox crimped. The process can be carried out in-line with numerous further processing operations. The tows are particularly useful for producing textile hygiene articles such as diapers, sanitary napkins, inserts and incontinence guards and the like.

Abstract: A process is described for producing thin crimped tows from LOY, POY, or FOY filaments in a total linear density from 2 ktex to 9 ktex by filament yarns being withdrawn from creeled bobbins, folded and provided with a processing finish, then drawn or tension-uniformized and thereafter heated and stufferbox crimped. The process can be carried out in-line with numerous further processing operations. The tows are particularly useful for producing textile hygiene articles such as diapers, sanitary napkins, inserts and incontinence guards and the like.

Abstract: A method for producing a skin/core type eccentric biocomponent fiber which is soft to touch and has improved latent crimp. An eccentric skin/core fiber which has a skin portion in relation to the cross-section of the fiber of 35%-70% is produced by melt spinning polyester as a core component and polyethylene as a skin component at a spinning speed of between 600 m/min-2000 m/min. The thus-obtained fiber stretches at a temperature of between 40° C.-70° C. at a ratio Wmax±20% and is then compressed in a crimped manner. The fiber, which is produced in such a manner, is very soft to touch and has an additional latent crimp. The fibrer are particularly suitable for producing hygiene products such as hygienic non-woven fabrics, and all kinds of hygienic textile flat items for producing nappies, bandages, inserts, cotton buds, and the like.

Abstract: The invention relates to a bioactive fiber product that, as a bioactively effective constituent, contains only one polyester fiber, which is largely or exclusively made of a polyester having links, which are condensed therewith and which contain phosphorous. The bioactive fiber products are suited for all textile products for which antibacterial, fungicidal, acaricidal and similar effects are sought.

Abstract: A process is described for producing thin crimped tows from LOY, POY, or FOY filaments in a total linear density from 2 ktex to 9 ktex by filament yarns being withdrawn from creeled bobbins, folded and provided with a processing finish, then drawn or tension-uniformized and thereafter heated and stufferbox crimped. The process can be carried out in-line with numerous further processing operations. The tows are particularly useful for producing textile hygiene articles such as diapers, sanitary napkins, inserts and incontinence guards and the like.

Abstract: A process is described for producing thin crimped tows from LOY, POY, or FOY filaments in a total linear density from 2 ktex to 9 ktex by filament yarns being withdrawn from creeled bobbins, folded and provided with a processing finish, then drawn or tension-uniformized and thereafter heated and stufferbox crimped. The process can be carried out in-line with numerous further processing operations. The tows are particularly useful for producing textile hygiene articles such as diapers, sanitary napkins, inserts and incontinence guards and the like.

Abstract: The invention relates to a method for producing non-pilling polyester fibres, whereby polyethylene terephthalate is produced in the presence of organosilicon compounds of tetrahydrofurfuryl alcohol. Preferably, tetrakistetrahydrofurfuryloxysilane or tris[tetrahydrofuryloxy]methylsilane is used.

Abstract: Fibers, preferably electret fibers, made of materials which contain predominantly fiber-forming polymer or polycondensate, with a preparation applied onto the fibers, where the applied preparation contains at least one active substance which has volatilized after a time period of 20 minutes at a temperature of at most 250° C., preferably at most 230° C., to at least 80 weight % are disclosed. The active substance is preferably a compound having the general formula (I) R1R2R3NO  (I) where R1 is hydrogen or an unsubstituted or substituted C1-C30 alkyl, alkenyl, or aryl group, and R2 and R3, independently of one another, are hydrogen or unsubstituted or substituted C1-C10 alkyl, alkenyl, or aryl groups.

Abstract: The low-shrinkage hybrid yarns comprise reinforcing filaments and matrix filaments composed of thermoplastic polymers having a lower melting point than the melting or decomposition point of the reinforcing filaments. The yarns are characterized by a 160.degree. C. hot air shrinkage of not more than 2% and a 200.degree. C. hot air shrinkage of not more than 5%. A process for producing these hybrid yarns includes the steps of feeding yarn strands moving at different speeds into an entangling jet, heating a matrix feed yarn during the feeding thereof into the entangling jet, entangling the feed yarn strands, and taking off the strands with or without shrinkage and additional heating.

Abstract: Drawn polyester yarn of enhanced strength and improved adhesion properties for reinforcement of elastic structures, such as tires, conveyor belts and the like, is obtained on treatment, prior to drawing, with a water-free or a low water fiber finish comprising an adhesion-promoting substance comprising a halogenated polyether containing at least one 2-halomethyloxyethylene unit and a 2,3-dihydroxypropyl end group.

Abstract: There is described a synthetic yarn fabric for the gas-releasing part of an airbag. The synthetic yarn is a synthetic high-tenacity multifilament yarn having a filament linear density of less than 4 dtex and a yarn count within the range from 250 to 550 dtex. The fabric itself is in a crepe or modified huckaback weave. In contradistinction to the conventional polyamide fabrics, it is uncoated and is preferably woven from unsized yarns. The fabric need not be calendered. It has been found that this fabric of fine-filament, high-tenacity polyester yarn, although uncoated, does meet the airbag fabric requirements such as readily preselectable air permeability, low fabric weight and low fabric thickness and also high fabric strength.

Abstract: The low-shrinkage hybrid yarns comprise reinforcing filaments and matrix filaments composed of thermoplastic polymers having a lower melting point than the melting or decomposition point of the reinforcing filaments. The yarns are characterized by a 160.degree. C. hot air shrinkage of not more than 2% and a 200.degree. C. hot air shrinkage of not more than 5%.These yarns are useful for producing composites.

Abstract: Woven or laid structures comprising at least two systems of parallel threads, at least one of these thread systems having more than 10 threads per centimeter and comprising at least 10%, based on the thread system, of hybrid yarns comprising reinforcing filaments and lower melting matrix filaments composed of thermoplastic polymers. In such woven or laid structures, the matrix component can be melted to form textile sheet materials of adjustable gas and/or liquid permeability, which are especially useful for manufacturing airbags.

Abstract: Described is a composite comprising at least one textile sheet construction composed of synthetic polymer and hybrid yarn comprising reinforcing fiber and lower melting bonding fiber. Also described is a net comprising in at least one direction hybrid yarns composed of reinforcing fiber and of lower melting bonding fiber. The composites can be used for producing bituminized roofing and sealing membranes.

Abstract: The present invention relates to a concrete mold liner and to molds for concrete production which produce patterned or very smooth concrete surfaces.