发明名称 |
Manufacture of film fabrics. |
摘要 |
<p>An apertured thermoplastic fabric is formed by extruding a film of a molten thermoplastic polymer, embossing the film in a nip between a smooth surfaced roll and a patterned roll, wherein the patterned roll includes a plurality of discrete, raised projections disposed in a pattern and each of which includes a sharp distal end; applying sufficient pressure at the nip for causing a plurality of small apertures to be formed in the extruded film in substantially the same pattern as the pattern of discrete, raised projections; orienting the apertured film in both the cross-machine direction and in the machine-direction, and thereafter embossing the oriented film on at least one surface with a plurality of raised members spaced closer to each other than the spaces between the apertures in the oriented film, to thereby provide a matte-type finish on at least one surface. The formed fabric also forms a part of the invention. <IMAGE></p> |
申请公布号 |
EP0520697(A1) |
申请公布日期 |
1992.12.30 |
申请号 |
EP19920305629 |
申请日期 |
1992.06.19 |
申请人 |
APPLIED EXTRUSION TECHNOLOGIES, INC. |
发明人 |
HOVIS, EDWARD E.;JOHNSON, ERIC D. |
分类号 |
B29C47/14;B29C59/04;B29D28/00;B29L7/00 |
主分类号 |
B29C47/14 |
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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