发明名称 |
Process for making a nonwoven web derived from lactic acid, web produced thereby, and apparatus therefor |
摘要 |
The invention relates to a process for the manufacture of a nonwoven web using filaments of melted polymers, of the type including the steps of spinning the polymer or polymers, of cooling, drawing and laying down fibers on a belt and of bonding said fibers by calendering in order to form said nonwoven web (15), which process furthermore includes a treatment (13, 14) of setting/adjusting the degree of crystallinity of and the internal tension in the fibers making up the nonwoven web. The invention also relates to the nonwovens obtained by the process and to the installations for implementing it.
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申请公布号 |
US5833787(A) |
申请公布日期 |
1998.11.10 |
申请号 |
US19950542168 |
申请日期 |
1995.10.12 |
申请人 |
FIBERWEB SODOCA SARL |
发明人 |
EHRET, PHILIPPE;GUIPOUY, PHILIPPE;LAHTENKORVA, KIMMO |
分类号 |
D01F6/62;C08G63/06;D04H1/42;D04H1/435;D04H1/54;D04H1/556;D04H3/14;D04H3/16;(IPC1-7):D04H1/42 |
主分类号 |
D01F6/62 |
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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