发明名称 |
BICOMPONENT FIBER AND YARN COMPRISING SUCH FIBER |
摘要 |
<p>The invention provides a bicomponent staple fiber comprising poly(ethylene terephthalate) and poly(trimethylene terephthalate) wherein the bicomponent fiber has a substantially oval cross-section shape having an aspect ratio A:B of about 2:1 to about 5:1 wherein A is a fiber cross-section major axis length and B is a fiber cross-section minor axis length, a polymer interface substantially perpendicular to the major axis, a cross-section configuration selected from the group consisting of side-by-side and eccentric sheath-core, a tenacity at 10% elongation of about 1.1 cN/dtex to about 3.5 cN/dtex, a free-fiber length retention of about 40% to about 85%, and a tow crimp development value of about 30 to 55%, and a spun yarn comprising the bicomponent staple fiber.</p> |
申请公布号 |
EP1738003(A1) |
申请公布日期 |
2007.01.03 |
申请号 |
EP20050733125 |
申请日期 |
2005.03.29 |
申请人 |
INVISTA TECHNOLOGIES S.A.R.L. |
发明人 |
HIETPAS, GEOFFREY, D.;SMITH, STEVEN, W. |
分类号 |
D01F8/14;D01D5/253;D02G3/04 |
主分类号 |
D01F8/14 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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