发明名称 |
FLASH-SPINNING PROCESS AND SOLUTION |
摘要 |
A process for flash-spinning a web (24) of plexifilamentary film-fibril strands (20) of synthetic fiber-forming polymer and laying down the web (24) to form a nonwoven batt (34) material therefrom includes the steps of generating a spin fluid consisting essentially of synthetic fiber-forming polymer and a spin agent, flash-spinning the spin fluid at a pressure greater than the autogenous pressure of the spin fluid into a spin cell (10) maintained at a lower pressure to form a web (24) of plexifilamentary film-fibril strands (20) of synthetic fiber-forming polymer, applying an electrostatic charge to the web (24) by passing the web (24) through an electric corona and laying the web (24) onto a grounded surface (32) to form a batt (34) of plexifilamentary film-fibril strands (20) suitable for consolidation into a sheet. |
申请公布号 |
WO0161082(A8) |
申请公布日期 |
2002.05.30 |
申请号 |
WO2001US04382 |
申请日期 |
2001.02.12 |
申请人 |
E. I. DU PONT DE NEMOURS AND COMPANY |
发明人 |
SCHWEIGER, THOMAS, A., J. |
分类号 |
D01F6/04;D01D5/11;D04H1/42;D04H1/72;D04H3/16 |
主分类号 |
D01F6/04 |
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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