发明申请
- 专利标题： APPARATUS FOR MANUFACTURING AND PROCESSING PRE-STRETCH FILMS HAVING STRIPS OF INCREASED THICKNESS
- 专利标题（中）： 制造和加工具有增加厚度条纹的预拉伸薄膜的装置
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申请号： US14212840申请日： 2014-03-14
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公开(公告)号： US20140272306A1公开(公告)日： 2014-09-18
- 发明人: Hassan Helmy , Robert F. Moeller , John P. Christiano , Daniel F. Hould
- 申请人： Davis-Standard, LLC
- 申请人地址： US CT Pawcatuck
- 专利权人： DAVIS-STANDARD, LLC
- 当前专利权人： DAVIS-STANDARD, LLC
- 当前专利权人地址： US CT Pawcatuck
- 主分类号： B29D7/01
- IPC分类号： B29D7/01
摘要：
A method for maximizing a width of a pre-stretch film includes providing polymer being suitable for producing the pre-stretch film. A pre-stretch film having strips of increased thickness is produced. The method includes coordinating a thickness of the strips of increased thickness with a formation of edge thickening caused by neck-in during stretching of the pre-stretch film.
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