发明名称 |
Method of making spun-bond web from multicomponent filaments |
摘要 |
A web is made by first extruding multicomponent filaments from a spinneret and then passing the extruded filaments through a process air shaft. Cold air is directed against the filaments in the process air shaft to cool and aerodynamically stretch the filaments while excluding the entry of other air into the process air shaft. The cooled and stretched multicomponent filaments are then deposited in a mat on a support, and then the mat of multicomponent filaments to a web is consolidated by subjecting it to water jets at a pressure of 10 bar to 200 bar such that the multicomponent filaments fuse together at crossover points and the filaments have a considerable free length between crossover points where they are fused. Finally the web is heat treated to crinkle the filaments thereof and bulk of the web.
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申请公布号 |
US7850899(B2) |
申请公布日期 |
2010.12.14 |
申请号 |
US20070705807 |
申请日期 |
2007.02.13 |
申请人 |
REIFENHAUSER GMBH & CO. MASCHINENFABRIK |
发明人 |
KUNZE BERND |
分类号 |
D01D5/092;D01D5/098;D01D5/22;D01D5/32;D04H3/08;D04H3/11;D04H3/16 |
主分类号 |
D01D5/092 |
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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