![长条拉伸膜的制造方法](/CN/2012/8/15/images/201280076890.jpg)
基本信息:
- 专利标题: 长条拉伸膜的制造方法
- 专利标题(英):Method for producing longitudinally-stretching film
- 申请号:CN201280076890.3 申请日:2012-11-06
- 公开(公告)号:CN104768729A 公开(公告)日:2015-07-08
- 发明人: 畠山晋平
- 申请人: 柯尼卡美能达株式会社
- 申请人地址: 日本东京都
- 专利权人: 柯尼卡美能达株式会社
- 当前专利权人: 柯尼卡美能达株式会社
- 当前专利权人地址: 日本东京都
- 代理机构: 北京集佳知识产权代理有限公司
- 代理人: 苗堃; 赵曦
- 国际申请: PCT/JP2012/007112 2012.11.06
- 国际公布: WO2014/073019 JA 2014.05.15
- 进入国家日期: 2015-05-05
- 主分类号: B29C55/04
- IPC分类号: B29C55/04
One aspect of the present invention is a method for producing a longitudinally-stretching film equipped at least with a diagonal-stretching step for angling the optical axis of the longitudinal film by gripping both ends of a thermoplastic longitudinal film using a plurality of gripping tools, and conveying the gripping tools gripping both ends at a constant speed, then accelerating first gripping tools gripping one end faster than second gripping tool gripping the other end, and advancing the first gripping tools farther than the second gripping tools, the method for producing the longitudinally-stretching film being characterized in that after advancing the first gripping tools in the diagonal-stretching step, a relaxing treatment is performed for relaxing the distortional stress applied to the longitudinal film in the regions between adjacent first gripping tools.
公开/授权文献:
- CN104768729B 长条拉伸膜的制造方法 公开/授权日:2016-08-31
IPC结构图谱:
B | 作业;运输 |
--B29 | 塑料的加工;一般处于塑性状态物质的加工 |
----B29C | 塑料的成型或连接;塑性状态物质的一般成型;已成型产品的后处理,如修整 |
------B29C55/00 | 用拉伸成型,如通过模子拉延;所用的设备 |
--------B29C55/02 | .板材或片材的 |
----------B29C55/04 | ..单轴的,如斜轴的 |