发明申请
US20150008611A1 METHOD AND APPARATUS FOR PRODUCTION OF AN OBLIQUELY STRETCHED LONG FILM 审中-公开
用于生产柔性拉伸长片的方法和装置

METHOD AND APPARATUS FOR PRODUCTION OF AN OBLIQUELY STRETCHED LONG FILM
摘要:
A method for producing obliquely stretched long film comprises an oblique stretching step and a folding step. In the oblique stretching step, a long film is stretched in the oblique direction with respect to the widthwise direction to create a stretched film (F). In the folding step, while conveying the stretched film (F) after stretching, the stretched film (F) is folded back at least once on the inner face thereof in a direction parallel or perpendicular to the stretching direction.
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