发明名称 |
PROCESS FOR PRODUCING SHEET-SHAPED MATERIAL AND SHEET-SHAPED MATERIAL OBTAINED BY SAID PROCESS |
摘要 |
Provided is an environmentally friendly process for producing a sheet-shaped material having both an elegant, napped appearance and a soft texture, which qualities have not been achieved concurrently, and also exhibiting good abrasion resistance. The process of the present invention for producing a sheet-shaped material includes the successive steps of (a) adding a polyvinyl alcohol having a degree of saponification of 98% or more and a degree of polymerization of 800 to 3,500 to a fibrous substrate in an amount of 0.1 to 50% by mass relative to the total mass of fibers in the fibrous substrate; (b) adding a waterborne polyurethane to the fibrous substrate with the added polyvinyl alcohol; and (c) removing the polyvinyl alcohol from the fibrous substrate with the added waterborne polyurethane. |
申请公布号 |
US2015233050(A1) |
申请公布日期 |
2015.08.20 |
申请号 |
US201314427744 |
申请日期 |
2013.09.13 |
申请人 |
TORAY INDUSTRIES, INC. |
发明人 |
Koide Gen;Nakai Shunichiro;Yanagisawa Satoshi;Nishimura Makoto;Tsuchimoto Takahiro |
分类号 |
D06M15/564;D06N3/00;D06N3/14 |
主分类号 |
D06M15/564 |
代理机构 |
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代理人 |
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主权项 |
1. A process for producing a sheet-shaped material, the process comprising the successive steps of:
(a) adding a polyvinyl alcohol having a degree of saponification of 98% or more and a degree of polymerization of 800 to 3,500 to a fibrous substrate in an amount of 0.1 to 50% by mass relative to the total mass of fibers in the fibrous substrate; (b) adding a waterborne polyurethane to the fibrous substrate with the added polyvinyl alcohol; and (c) removing the polyvinyl alcohol from the fibrous substrate with the added waterborne polyurethane. |
地址 |
Tokyo JP |