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    ROLL OF CONTINUOUS WEB OF OPTICAL FILM LAMINATE AND PRODUCTION METHOD THEREFOR
    1.
    发明申请
    ROLL OF CONTINUOUS WEB OF OPTICAL FILM LAMINATE AND PRODUCTION METHOD THEREFOR 有权
    光学薄膜连续网卷及其生产方法

    公开(公告)号：US20140186568A1

    公开(公告)日：2014-07-03

    申请号：US14200721

    申请日：2014-03-07

    Applicant: NITTO DENKO CORPORATION

    Inventor： Takeharu KITAGAWA ,  Takuya NAKAZONO ,  Shusaku GOTO ,  Minoru MIYATAKE ,  Tomohiro MORI ,  Takashi KAMIJO

    IPC: G02B5/30

    CPC classification number: G02B5/305 ,  G02B1/08 ,  G02B5/3033 ,  G02B27/288 ,  Y10T428/1041 ,  Y10T428/14 ,  Y10T428/15

    Abstract: A method of producing a roll of a continuous web of an optical film laminate, usable in a process of laminating an optical film sheet including a polarizing film and formed to a size corresponding to that an optical panel to a surface of the optical panel being fed to a lamination position, is disclosed. The polarizing film is prepared by subjecting a laminate including a thermoplastic resin substrate and a PVA type resin layer formed on the substrate, to uniaxial 2-stage stretching to reduce a thickness of the PVA type resin layer to 10 μm or less, and causing a dichroic material to be absorbed in the PVA type resin layer. A carrier film is releasably attached to the continuous web of optical film laminate including the polarizing film, through an adhesive layer. A defect inspection is performed for the optical film laminate and the adhesive layer.

    Abstract translation: 一种制造光学膜层叠体的连续卷筒纸的方法，可用于将包括偏振膜的光学膜片层压并且形成为与所述光学板相对应的尺寸的光学膜片的工艺，以提供给被馈送的光学板的表面 公开了层压位置。 通过对形成在基板上的热塑性树脂基板和PVA型树脂层的层叠体进行单轴2阶段拉伸，将PVA类树脂层的厚度缩小到10μm以下，制作偏光膜， 二色性材料被吸收在PVA型树脂层中。 载体膜通过粘合剂层可释放地附着到包括偏振膜的光学膜层压板的连续幅材上。 对光学膜层叠体和粘合剂层进行缺陷检查。

    METHOD OF PRODUCING ROLL OF LAMINATE STRIP WITH POLARIZING FILM
    2.
    发明申请
    METHOD OF PRODUCING ROLL OF LAMINATE STRIP WITH POLARIZING FILM 有权
    用偏光膜生产层压板的方法

    公开(公告)号：US20130114139A1

    公开(公告)日：2013-05-09

    申请号：US13728473

    申请日：2012-12-27

    Applicant: NITTO DENKO CORPORATION

    Inventor： Takeharu KITAGAWA ,  Takuya NAKAZONO ,  Shusaku GOTO ,  Minoru MIYATAKE ,  Tomohiro MORI ,  Takashi KAMIJO

    IPC: G02B5/30

    CPC classification number: G02B5/305 ,  B32B41/00 ,  B32B2457/20 ,  G02B5/3033

    Abstract: 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.

    Abstract translation: 一种制造包括偏光膜的光学膜层压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并具有10μm厚度的偏振膜的光学膜层压材料的连续幅材，或者 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。

    METHOD OF PRODUCING ROLL OF LAMINATE STRIP WITH POLARIZING FILM
    3.
    发明申请
    METHOD OF PRODUCING ROLL OF LAMINATE STRIP WITH POLARIZING FILM 审中-公开
    用偏光膜生产层压板的方法

    公开(公告)号：US20160103258A1

    公开(公告)日：2016-04-14

    申请号：US14970113

    申请日：2015-12-15

    Applicant: NITTO DENKO CORPORATION

    Inventor： Takeharu KITAGAWA ,  Takuya NAKAZONO ,  Shusaku GOTO ,  Minoru MIYATAKE ,  Tomohiro MORI ,  Takashi KAMIJO

    IPC: G02B5/30

    CPC classification number: G02B5/305 ,  B32B41/00 ,  B32B2457/20 ,  G02B5/3033

    Abstract: Disclosed is a method of producing a roll of an optical film laminate strip including a polarizing film which has a thickness of 10 μm or less. The method comprises 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, to attain a stretching ratio of 5 to 8.5 to thereby reduce a thickness of the polyvinyl alcohol type resin layer to 10 μm or less, and an absorption sub-step of causing a dichroic material to be absorbed in the polyvinyl alcohol type resin layer; 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.

    Abstract translation: 公开了一种制造包括厚度为10μm以下的偏光膜的光学膜层叠条的卷的方法。 该方法包括以下步骤：形成包括由聚乙烯醇型树脂层组成的厚度为10μm以下的偏振膜的光学膜层叠体的连续纤维网，其中通过进行拉伸子层而形成偏振膜， 将包含热塑性树脂基材的连续纤维网和形成在基材上的聚乙烯醇型树脂层的层压体在基于预备的空气内拉伸的2段拉伸和层压板的长度方向上的单轴拉伸下进行的步骤 硼酸 - 酸溶液拉伸，达到5〜8.5的拉伸比，从而将聚乙烯醇型树脂层的厚度减小到10μm以下，以及使二色性材料吸收的吸收子步骤 在聚乙烯醇型树脂层中; 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。

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