Abstract:
[Problem] The present invention provides artificial leather including an entangled fiber mass of ultrafine fibers and a polymeric elastomer and having a wet feel and an elegant consistent appearance similar to those of natural nubuck leather, and also provides a production method therefor. [Means of solution] Accordingly, the artificial leather of the present invention is an artificial leather including an entangled fiber mass of ultrafine fibers having a monofilament fineness of 0.01 dtex or more and 0.50 dtex or less and a polymeric elastomer; wherein at least one surface is napped; the cross-sectional profile curve of the napped surface has an arithmetic mean height Pa of 26 µm or more and 100 µm or less; the arithmetic mean height Pa of the cross-sectional profile curve of the opposite surface is 20% or more and 80% or less of the cross-sectional roughness Pa of the napped side; the existence frequency of asperity peaks found in the cross-sectional profile curve of the napped surface is 1.8 or more and 20 or less per 1.0 mm; and a woven or knitted fabric lamination is present near the opposite surface at a depth position of 10% or more and 50% or less.
Abstract:
The present invention provides a process for producing a sheet-shaped material having both an elegant, napped appearance and a soft texture and exhibiting a good abrasion resistance, the process comprising the successive steps of: (i) dissolving, in water, a polyvinyl alcohol having a degree of saponification of 98% or more and a degree of polymerization of 800 to 3500 to prepare a polyvinyl alcohol aqueous solution in which the concentrations of methyl acetate, acetic acid and methanol are 50 ppm or less, (ii) adding the polyvinyl alcohol aqueous solution to a fibrous substrate comprising microfiber-generating fibers as its main constituent, so that the fibrous substrate has the polyvinyl alcohol in an amount of 0.1 to 50% by mass based on the mass of the fibers contained in the fibrous substrate, (iii) generating microfibers having an average single fiber diameter of 0.3 to 7 µm from the microfiber-generating fibers contained in the fibrous substrate as its main constituent, (iv) adding a waterborne polyurethane to the fibrous substrate comprising the microfibers as its main constituent and having the added polyvinyl alcohol, and (v) removing the polyvinyl alcohol from the fibrous substrate comprising the microfibers as its main constituent and having the added waterborne polyurethane.
Abstract:
A primary carpet backing including at least a first and a second layer of fibers, characterized in that both the first and the second layer of fibers is a nonwoven layer of randomly laid fibers, that both the first layer of fibers and the second layer of fibers has a uniform composition throughout the layer, wherein the linear density of the fibers is in the range of 1 to 25 dtex, wherein both the first layer of fibers and second layer includes at least two different polymers and wherein at least one polymer included in the first layer is different from the polymers included in the second layer.
Abstract:
A tufted nonwoven with improved stitch holding, a bonded nonwoven and methods for their manufacture are described. The tufted nonwoven with improved stitch holding comprises a face material which tufts a bonded nonwoven comprising a mixture of a plurality of bicomponent filaments 1 with a plurality of bicomponent filaments 2 wherein iα) at least bicomponent filaments 1 exhibit a core/sheath geometry wherein component 11 represents the core and component 12 represents the sheath or iβ) at least bicomponent filaments 1 exhibit a side by side geometry wherein component 11 represents side 1 and component 12 represents side 2 or iγ) at least bicomponent filaments 1 exhibit an islands in the sea geometry wherein component 11 represents the islands and component 12 represents the sea ii) the component 11 exhibits a melting temperature Tm(11) and the component 22 exhibits a melting temperature Tm(22), iii) the component 12 exhibits a melting temperature Tm(12), the component 21 exhibits a melting temperature Tm(21) and Tm(12) is higher than Tm(21) and iv) the melting temperatures of both component 11 and 22 and the melting temperatures of components 12 and 21 obey to the relation both Tm(11) and Tm(22) > Tm(12) > Tm(21) an wherein the face material is bonded to bicomponent filaments 1 and 2 by a solidified melt of components 12 and 21.
Abstract:
The invention relates to an acoustically active carpet shaped part (1') for motor vehicles, comprising: a textile air-permeable carpet layer (2, 3); a barrier layer (5), which is joined to the underside of the carpet layer while preventing the penetration of foam, and; a foam material back (6) foamed onto the barrier layer, this foam material back being formed by foam-laminating the barrier layer in a foaming tool. The invention also relates to a method for producing a carpet shaped part of the aforementioned type. In order to provide a carpet shaped part of this kind that, with a low weight and reduced costs, has a high airborne sound absorbing effect, the invention provides that instead of a sealing or heavy layer film, a fine-fibered needle-punched nonwoven or a needled felt is used as a barrier layer (5) for preventing a penetration of foam. This needle-punched nonwoven or needled felt is produced from synthetic fibers having a fineness of less than 6.7 dtex as well as from bicomponent hot-melt adhesive fibers and has a weight per unit area ranging from 600 to 900 g/m2.
Abstract:
A waterproof, breathable, recyclable, layered composite fabric with stretch that is especially well-suited for weather protection garments and the like, has at least one layer of a woven, knitted, or non-woven face fabric of stretch-recovery bicomponent fibers, and an elastomeric waterproof film or coating of the same polymer, and optionally a liner fabric of knitted construction. The composite fabric is recyclable using traditional techniques to recycle polyester or polyamide. Garments made from this fabric are also disclosed.
Abstract:
Die Erfindung betrifft einen textilen Faden mit einer Seele und die Seele umgebenden Multifilamentgarnen, wobei hochfeste Multifilamentgarne aus organischen Synthesefasern mit einer Feinheitsreißfestigkeit von mindestens 3 cN/dtex und einer Reißdehnung kleiner 22 % zur Ausbildung eines textilen Fadens mit einer der Reißfestigkeit der Multifilamentgarne entsprechenden Reißfestigkeit eingesetzt sind und zur Erhöhung der Dehnbarkeit des textilen Fadens bei Erhalt der Reißfestigkeit desselben eine gummielastische Seele aus einem Monofil aus einem Thermoplastischen Elastomer mit einer Reißdehnung von mindestens 35 % vorgesehen ist, welche von mindestens je einem der Multifilamentgarne in S-Richtung und/oder Z-Richtung umzwirnt ist, sowie textile Flächengebilde und Körpergebilde hieraus.