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1. (WO2016190019) RETROREFLECTIVE MATERIAL

Pub. No.:    WO/2016/190019    International Application No.:    PCT/JP2016/062829
Publication Date: Fri Dec 02 00:59:59 CET 2016 International Filing Date: Sat Apr 23 01:59:59 CEST 2016
IPC: G02B 5/128
B41M 5/00
B41M 5/50
B41M 5/52
G09F 13/16
Applicants: UNITIKA SPARKLITE LTD.
ユニチカスパークライト株式会社
Inventors: NISHIMURA, Yasutaka
西村 安隆
FUJIKI, Motomu
藤木 求
NISHIGAKI, Atsumi
西垣 敦己
Title: RETROREFLECTIVE MATERIAL
Abstract:
The purpose of the present invention is to provide a retroreflective material which is provided with excellent laundering fastness, and in which a daytime color visible by inkjet printing and a nighttime color visible by retroreflected light are maintained despite repeated laundering. A retroreflective material provided with a fixing resin layer, transparent microspheres embedded in the fixing resin layer, a reflecting layer provided on a surface side of the transparent microspheres, on the reverse side from the incident light side, and an inkjet receiving layer provided on an outermost surface on the incident light side, wherein the refractive index of the transparent microspheres is set to 1.6-2.5, and the inkjet receiving layer is formed using a polyurethane resin including a C3-15 dicarboxylic acid, a polycarbonate polyol, and a polyisocyanate as constituent units, whereby excellent laundering fastness can be provided, and a daytime color visible by inkjet printing and a nighttime color visible by retroreflected light can be maintained despite repeated laundering.