发明名称 |
Method for stretching a fibrous or film-like material |
摘要 |
A method is disclosed for transversely stretching a fibrous or film-like material. The material is subjected to a monoaxial transverse stretch which progresses divergently along an arcuate track. An apparatus to implement this method is also disclosed, which essentially comprises a pair of pulleys and a pair of V-belts cooperating in releasably gripping therebetween opposite selvages of a given material, the pulleys being rotative in the same plane in opposite directions so that the material is stretched along a progressively diverging arcuate track.
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申请公布号 |
US4349500(A) |
申请公布日期 |
1982.09.14 |
申请号 |
US19800133146 |
申请日期 |
1980.03.24 |
申请人 |
NIPPON PETROCHEMICALS CO., LTD. |
发明人 |
YAZAWA, MASAHIDE;TANI, HARUHISA;KURIHARA, KAZUHIKO;YAZAWA, HIROSHI |
分类号 |
B29C49/00;B29C55/00;B29C55/04;B29C55/08;D06C3/00;(IPC1-7):B29C17/02 |
主分类号 |
B29C49/00 |
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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