公开(公告)号：US20170183814A1

公开(公告)日：2017-06-29

申请号：US15115518

申请日：2015-01-22

Applicant: TORAY INDUSTRIES, INC.

Inventor： Hisashi Murahara ,  Shunichiro Nakai ,  Yukihiro Matsuzaki ,  MAKOTO Nishimura

IPC: D06N3/00 ,  D06N3/14

CPC classification number: D06N3/0004 ,  C08G18/0823 ,  C08G18/44 ,  C08G18/4854 ,  C08G18/6659 ,  C08G18/6692 ,  C08G18/758 ,  C08G18/7621 ,  C08G18/7671 ,  C08G18/791 ,  C08G18/797 ,  C08G18/80 ,  D06N3/0036 ,  D06N3/14 ,  D06N3/147 ,  C08G18/12 ,  C08G18/3228 ,  C08G18/3234

Abstract: A sheet material includes a fibrous substrate made of microfibers and a hydrophilic-group-containing resin applied to the fibrous substrate. The hydrophilic-group-containing resin has a microphase-separated structure that satisfies Condition I: In a phase image obtained by observing an area of 1 μm2 in a cross-section of the hydrophilic-group-containing resin applied to the fibrous substrate by phase imaging using an atomic force microscope (AFM), a standard deviation of a mode of brightness distribution of areas of 0.2 μm2 in the area of 1 μm2 is from 0 to 10. Provided are a sheet material that is produced through an eco-conscious production process and yet has such uniformity that is comparable to those of man-made leathers produced using organic-solvent-based polyurethanes, an elegant surface appearance, and a good touch, and a method for producing such a sheet material.