发明名称 |
High-loft spunbond non-woven webs and method of forming same |
摘要 |
A non-woven web formed from substantially continuous and uninterrupted multi-component filaments in which the filaments are spun at a spinning speed adequate for molecularly orienting less than all of the various constituent polymers. After collection, the non-woven web is either heated or receives a tensile force that causes each filament region formed from the polymer lacking molecular orientation to shrink in length considerably more than other filament regions formed from molecularly-oriented polymers. The differential length reduction enhances the loft of the non-woven web.
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申请公布号 |
US2004203309(A1) |
申请公布日期 |
2004.10.14 |
申请号 |
US20030413057 |
申请日期 |
2003.04.14 |
申请人 |
NORDSON CORPORATION |
发明人 |
ALLEN MARTIN A.;CRANE PATRICK L.;BUTT JON R. |
分类号 |
D04H3/14;A61F13/15;A61F13/62;D01F8/04;D01F8/06;D01F8/14;D04H1/06;D04H3/16;(IPC1-7):D04H3/16;D04H3/00;B32B5/26 |
主分类号 |
D04H3/14 |
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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