发明名称 |
Process of manufacturing a triboelectrically charged nonwoven |
摘要 |
A process for the manufacture of a triboelectrically charged nonwoven, wherein a fiber blend made of polyacrylnitrile fibers with a titer of <=1.7 dtex and of polyolefine fibers with a titer of <=1.7 dtex is freed from lubricating agents and antistatic agents by washing, is dried down to a moisture content of <1% by weight and is carded on a longitudinal or randomizing card into a triboelectrically charged web with a mass per area unit of 15-80 g/m2. This web is taken off by two simultaneously running rolls and a transfer roll, so that the web is laid on to a conveyor in machine direction, and bonded directly inside a bonding set, the unbonded web being forwarded via 1 to 3 points of transfer only. |
申请公布号 |
EP1208900(B1) |
申请公布日期 |
2009.01.21 |
申请号 |
EP20010122347 |
申请日期 |
2001.09.19 |
申请人 |
CARL FREUDENBERG KG |
发明人 |
BUCHWALD, HOLGER;MORWEISER, KARL-HEINZ;VEESER, KLAUS |
分类号 |
B01D39/00;B01D39/14;B01D39/08;B01D39/16;B32B5/26;D04H1/42;D04H1/48;D04H1/492;D04H1/498;D04H1/54;D04H1/541;D04H1/544;D04H1/548;D04H1/555;D04H1/559;D04H1/56;D04H1/72;D04H1/74;D04H13/00 |
主分类号 |
B01D39/00 |
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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