Title:
透明樹脂層付の片保護偏光フィルムの製造方法、粘着剤層付偏光フィルムの製造方法、及び画像表示装置の製造方法
Document Type and Number:
Japanese Patent JP6636367
Kind Code:
B2
Abstract:
The present invention provides a method for producing a polarizing film protected on one side and having a transparent resin layer, said polarizing film comprising a polarizing film that is protected on one side and as a result of having a protective film on only one surface of the polarizer, and a transparent resin layer provided on the polarizer surface of the polarizing film protected on one side, the method being characterized by: including, in the following order, a step (1) for preparing a polarizing film protected on one side as a result of having a protective film on only one surface of the polarizer, a step (2) for coating the polarizer surface of the polarizing film protected on one side with an aqueous coating solution that contains a resin component, and a step (3) for forming a transparent resin layer by drying the obtained coating film; the polarizer containing a polyvinyl alcohol resin and having a thickness of 10μm or less; and the variation in the water contact angle of the polarizer surface on which the transparent resin layer is formed being within the range of ±20° from the average water contact angle. As a result, the present invention makes it possible to suppress the occurrence of unevenness in appearance, even upon exposing this polarizing film protected on one side, equipped with a transparent resin layer, and using a thin polarizer to a humid environment.
Inventors:
Ueno Tomonori
Satoshi Mita
Atsushi Kishi
Kentaro Ikeshima
Motegi Yusuke
Satoshi Mita
Atsushi Kishi
Kentaro Ikeshima
Motegi Yusuke
Application Number:
JP2016058816A
Publication Date:
January 29, 2020
Filing Date:
March 23, 2016
Export Citation:
Assignee:
NITTO DENKO CORPORATION
International Classes:
G02B5/30; C09J7/20
Domestic Patent References:
| JP2008257025A | ||||
| JP2015161782A |
Attorney, Agent or Firm:
Patent Business Corporation Unias International Patent Office