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JP2005306981A Polyvinyl alcohol-based polymer film 有权
标题翻译：聚乙烯醇基聚合物膜
公开(公告)号：JP2005306981A
公开(公告)日：2005-11-04
申请号：JP2004125122
申请日：2004-04-21
申请人： Kuraray Co Ltd , 株式会社クラレ
发明人： HATA HIDEYUKI , SHIRAISHI AKIRA , ISOZAKI TAKANORI
IPC分类号： B26D1/22 , C08J5/18 , C08L29/04
摘要： PROBLEM TO BE SOLVED: To obtain a polyvinyl alcohol-based polymer film that has a smooth cut end face having a low degree of roughening in the whole length of the film, causes neither cracks nor breaks at a cut end face when uniaxially oriented in the length direction and is suitable as a rolled web film in producing a polarizing film and to provide a method for cutting a film in order to obtain the film. SOLUTION: The polyvinyl alcohol-based polymer film has a cut end face with 50μm maximum height (Ry) in the length direction. The method for obtaining the film comprises cutting the polyvinyl alcohol-based polymer film in the length direction by using a rotary round blade. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题为了获得在膜的整个长度上具有低粗糙度的光滑切割端面的聚乙烯醇类聚合物膜，当单轴向不会在切割端面引起裂缝或断裂在长度方向上取向，并且适合作为制造偏光膜的卷筒纸薄膜，并提供用于切割薄膜以获得薄膜的方法。聚乙烯醇系聚合物膜的长度方向的切断端面的最大高度（Ry）为50μm。获得膜的方法包括使用旋转圆形刀片在长度方向上切割聚乙烯醇类聚合物膜。版权所有（C）2006，JPO＆NCIPI

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