公开(公告)号：US20150064348A1

公开(公告)日：2015-03-05

申请号：US14473632

申请日：2014-08-29

Applicant: Nitto Denko Corporation

Inventor： Mitsuru SUZUKI ,  Takuya Mori ,  Daisuke Hayashi ,  Atsushi Muraoka ,  Nao Murakami

IPC: G02B1/04 ,  G02B5/30

CPC classification number: G02B1/04 ,  G02B5/305 ,  G02F1/1303 ,  C08L33/24

Abstract: The invention relates to a method for manufacturing an optical film. The method includes an unwinding step, a cleaning step and an application step. In the unwinding step, a long-band shaped flexible base having a first principal surface and a second principal surface is unwound from a continuous roll, and the base is continuously fed to a downstream side. In the cleaning step, a cleaning liquid is supplied between the second principal surface of the base and a cleaning roll, and the cleaning liquid is applied and spread over the base by the cleaning roll to clean the second principal surface of the base. Thereafter, in the application step, a resin solution is applied onto the first principal surface of the base and then the resin solution is dried.

Abstract translation: 本发明涉及一种光学膜的制造方法。 该方法包括退绕步骤，清洁步骤和应用步骤。 在展开步骤中，具有第一主表面和第二主表面的长带形柔性基座从连续卷筒展开，并且基座连续地馈送到下游侧。 在清洗工序中，在基材的第二主面和清洗辊之间供给清洗液，通过清洗辊将清洗液涂布在基材上，清洗基体的第二主面。 然后，在涂布工序中，将树脂溶液涂布在基材的第一主面上，然后干燥树脂溶液。

公开(公告)号：US10274659B2

公开(公告)日：2019-04-30

申请号：US15512328

申请日：2015-09-18

Applicant: NITTO DENKO CORPORATION

Inventor： Akinori Izaki ,  Ryohei Sawazaki ,  Atsushi Yasui ,  Yuki Kida ,  Takeharu Kitagawa ,  Takuya Mori

IPC: G02B5/30

Abstract: A polarizing plate including an optical functional film and a polarizing film (polarizer), the polarizing plate being thin and excellent in durability of the polarizing film. The polarizing plate includes an optical functional film, a pressure-sensitive adhesive layer, a polarizing film, and a protective film in the stated order, in which: the polarizing film has a thickness of 15 μm or less; the pressure-sensitive adhesive layer has a thickness of 15 μm or less; the optical functional film has a moisture permeability of 200 g/m2/24 h or less; and the protective film has a moisture permeability of 1,000 g/m2/24 h or less.