Method of producing roll of laminate strip with polarizing film
    7.
    发明授权
    Method of producing roll of laminate strip with polarizing film 有权
    用偏光膜生产层压条的辊的方法

    公开(公告)号:US09442234B2

    公开(公告)日:2016-09-13

    申请号:US13224000

    申请日:2011-09-01

    IPC分类号: B32B41/00 G02B5/30

    摘要: A method of producing a roll of an optical film laminate strip including a polarizing film includes the steps of: forming a continuous web of optical film laminate including a polarizing film which consists of a polyvinyl alcohol type resin layer and has a thickness of 10 μm or less, wherein the polarizing film is formed by performing an stretching sub-step of subjecting a laminate comprising a continuous web of thermoplastic resin substrate and a polyvinyl alcohol type resin layer formed on the substrate, to a uniaxial stretching in a lengthwise direction of the laminate based on 2-stage stretching consisting of preliminary in-air stretching and in-boric-acid-solution stretching; cutting the continuous web of optical film laminate along a direction parallel to the length direction to form at least one continuous web of laminate strip having a given width; and winding the continuous web of laminate strip having the given width into a roll.

    摘要翻译: 一种制造包括偏光膜的光学膜层叠条的卷的方法包括以下步骤:形成包括由聚乙烯醇型树脂层组成的厚度为10μm的偏振膜的光学膜层叠体的连续幅材,或 其特征在于,所述偏光膜是通过对形成在所述基材上的聚乙烯醇类树脂层的包含连续纤维网的层叠体在层叠体的长度方向进行单轴拉伸的拉伸工序进行拉伸, 基于由初步空气中拉伸和硼酸溶液拉伸组成的2段拉伸; 沿着与长度方向平行的方向切割光学膜层压板的连续卷材以形成具有给定宽度的至少一个连续的层压条带; 并将具有给定宽度的层压带的连续卷材卷绕成卷。