Manufacturing method of optical film

专利名称：Manufacturing method of optical film发明人：秦 和也,平田 聡,近藤 誠司申请号：JP2015004738申请日：20150114公开号：JP6579752B2公开日：20190925

摘要：The present invention relates to a method of manufacturing an optical filmusing a tenter stretching device provided with multiple clips as holding means. Thismethod involves holding both edges of an elongate resin film by means of clips at aconveyance-direction clip interval L1 (a holding step), to allowing the resin film to slackenin the width direction by decreasing the width-direction clip interval from W1 to W2 whileconveying said resin film in the length direction (a slackening step), and stretching theresin film in the lengthwise direction by increasing the conveyance-direction clip intervalto L2 while conveying, in the lengthwise direction, the resin film that has been slackenedin the width direction (a stretching step).

申请人：日東電工株式会社

地址：大阪府茨木市下穂積１丁目１番２号

国籍：JP

代理人：籾井 孝文

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