发明名称 |
Polyurethane elastic fiber nonwoven fabric and its production and synthetic leather using the same |
摘要 |
A polyurethane elastomer fiber non-woven fabric contains polyurethane elastomer fiber filaments melt-bonded with one another, and has a tensile elongation of 100% or more, a 50% elongation recovery of 75% or more and a tear strength per METSUKE of 5.5 gf or more. The non-woven fabric can be prepared by a method of providing a thermoplastic polyurethane elastomer having Shore hardness A of 92 or more, drying the elastomer to a water content of 150 ppm or less, and melt-spinning and, at the same time, spraying it together with a high speed gas stream so as to deposit and laminate the elastomer into a sheet form. A synthetic leather using the non-woven fabric is also provided. The non-woven fabric has not only an excellent elasticity but also high tear strength.
|
申请公布号 |
US6784127(B1) |
申请公布日期 |
2004.08.31 |
申请号 |
US20010890742 |
申请日期 |
2001.09.24 |
申请人 |
KANEBO, LIMITED;KANEBO GOHSEN, LIMITED |
发明人 |
YAMAKAWA YUKIO;FURUYA TADASHI;KAWABATA EIJI;TANAKA YUTAKA |
分类号 |
B32B5/02;B32B27/12;B32B27/40;D04H1/42;D04H1/4358;D04H1/72;D04H3/00;D04H3/009;D04H3/02;D04H3/14;D04H3/16;D06N3/00;D06N3/14;(IPC1-7):B32B27/12;D04H1/54;D02G3/02 |
主分类号 |
B32B5/02 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|