D06N2211/265

SHEET MATERIAL AND METHOD FOR PRODUCING SAME

The sheet material according to the present invention has a polymer elastic body and a fibrous base material comprising ultrafine fibers, wherein the average single fiber diameter of the ultrafine fibers is 0.1 .Math.m to 10.0 .Math.m, the polymer elastic body has a hydrophilic group and an N-acylurea bond and/or an isourea bond, and the following conditions are satisfied : the longitudinal stiffness, in accordance with method A (45° cantilever method) in the text of “8.21 Stiffness” of JIS L 1096:2010 “Testing Methods for Woven and Knitted Fabrics”, is 40 mm to 140 mm ; and after immersion for 24 hours in N,N-dimethylformamide, the following are obtained in wear testing using a pressing load of 12.0 kPa and 20,000 friction cycles in accordance with method E (Martindale method) in the text of “8.19 Wear Strength and Friction Discoloration” of JIS L 1096:2010 “Testing Methods for Woven and Knitted Fabrics”: a grade of at least 4 and a wear loss of not more than 25 mg.

Artificial Leather and Production Method Therefor

Provided is an artificial leather that has texture (stiffness), a luxuriant feel (dispersibility of fiber bundles), and a slick feel (resin clusters of appropriate size) and can be used suitably as a seat cover material or interior design material for interiors, cars, airplanes, railway cars, etc. and garment accessory products. This artificial leather comprises a fiber sheet and a polyurethane resin and is characterized in that: the fiber sheet comprises at least a fiber layer (A) that forms a first outer surface of the artificial leather; the k-nearest neighbor distance proportion (k=9, radius r=20 μm) between cross-sections of single fibers configuring the fiber layer (A) in a thickness direction cross-section of the artificial leather is 10-80%; the cross-sectional polyurethane resin area ratio in a thickness direction cross-section of the fiber layer (A) is 10-30%; and the standard deviation of the cross-sectional polyurethane resin area ratio in a thickness direction cross-section of the fiber layer (A) is 25% or less.

SKIN MATERIAL AND METHOD FOR PRODUCING SKIN MATERIAL
20170305126 · 2017-10-26 ·

A skin material containing, in the following order: a base fabric that is configured to contain fibers having a synthetic resin coating layer, wherein fibers adjacent to each other in the base fabric are at least partially fused with each other; and an adhesive layer and a skin layer, which are provided at a surface of at least one side of the base fabric in this order from the base fabric, the skin material having a plurality of ventilation holes passing through the skin material in a thickness direction.

SHEET-SHAPED ARTICLE AND MANUFACTURING METHOD THEREFOR

A purpose of the present invention is to provide a sheet-shaped article and a manufacturing method therefor, said sheet-shaped article demonstrating both a supple texture and superior wear resistance. In order to achieve this purpose, a sheet-shaped article according to the present invention is a sheet-shaped article that includes, in a fibrous base material, a polymer elastic body with a hydrophilic group, said fibrous base material comprising extremely fine fibers with an average individual fiber fineness of 0.1 μm to 10 μm, wherein the sheet-shaped article has N-acylurea bonding or isourea bonding within the polymer elastic body, and a monovalent positive ion-including inorganic salt is present at a rate of 0.1 mass % to 5 mass % with regard to the mass of the polymer elastic body.

Sheet material and method for producing same

The sheet material according to the present invention has a polymer elastic body and a fibrous base material comprising ultrafine fibers, wherein the average single fiber diameter of the ultrafine fibers is 0.1 m to 10.0 m, the polymer elastic body has a hydrophilic group and an N-acylurea bond and/or an isourea bond, and the following conditions are satisfied: the longitudinal stiffness, in accordance with method A (45 cantilever method) in the text of 8.21 Stiffness of JIS L 1096:2010 Testing Methods for Woven and Knitted Fabrics, is 40 mm to 140 mm; and after immersion for 24 hours in N,N-dimethylformamide, the following are obtained in wear testing using a pressing load of 12.0 kPa and 20,000 friction cycles in accordance with method E (Martindale method) in the text of 8.19 Wear Strength and Friction Discoloration of JIS L 1096:2010 Testing Methods for Woven and Knitted Fabrics: a grade of at least 4 and a wear loss of not more than 25 mg.