发明名称 |
Process for forming fibrous structures with predetermined Z-fiber distributions |
摘要 |
The invention relates to the field of forming fibrous structures by needling processes. A process is provided for achieving a desired Z-fiber distribution in a fibrous structure by controlling transport depth during formation of the fibrous structure in a series of needling passes. Each needling pass generates a portion of Z-fiber bundles that penetrate adjacent fibrous layers, the Z-fiber bundles penetrating only those adjacent fibrous layers that need more Z-fiber bundles to attain a predetermined number of Z-fiber bundles within each fibrous layer. <IMAGE> |
申请公布号 |
EP0767266(A1) |
申请公布日期 |
1997.04.09 |
申请号 |
EP19960115772 |
申请日期 |
1996.10.02 |
申请人 |
THE B.F. GOODRICH COMPANY |
发明人 |
SHEEHAN, PHILIP WILLIAM;SZE-HENG LIEW, RONNIE |
分类号 |
B29B11/04;B29B11/16;B29C70/54;D04H13/00;D04H18/00;F16D69/02 |
主分类号 |
B29B11/04 |
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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