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1. (WO2017169810) OPTICAL REFLECTION FILM

Pub. No.:    WO/2017/169810    International Application No.:    PCT/JP2017/010526
Publication Date: Fri Oct 06 01:59:59 CEST 2017 International Filing Date: Thu Mar 16 00:59:59 CET 2017
IPC: G02B 5/28
B32B 7/02
B32B 27/40
G02B 5/26
Applicants: KONICA MINOLTA, INC.
コニカミノルタ株式会社
Inventors: HATAZAWA, Shota
畠沢 翔太
SAITO, Yoichi
斎藤 洋一
Title: OPTICAL REFLECTION FILM
Abstract:
[Problem] To provide an optical reflection film having a refractive index layer that includes a water-soluble resin, wherein occurrences of color changes and cracking are minimized even after long-term use. [Solution] An optical reflection film having a substrate and a dielectric multilayer film which is disposed on one surface of the substrate and in which a low refractive index layer and a high refractive index layer are alternately laminated. The low refractive index layer and/or the high refractive index layer is a water-dispersible cationic urethane resin-containing layer containing a water-soluble resin, a refractive index modifier, a water-dispersible cationic urethane resin, and a cation polymer having a tertiary amino group or a cation (salt) thereof or a quaternary ammonium group.