ARTIFICIAL LEATHER AND LIGHT-TRANSMITTING DEVICE USING SAME

WIPO Patent Application WO/2022/070953

A1

The present invention provides artificial leather that has a deep color of medium or higher density while also maintaining the feel and texture thereof and having light transmissivity.　Artificial leather according to the present invention comprises an entangled fiber body that comprises ultrafine fibers having an average single fiber diameter of 0.1 μm or more, and a polymer elastic body, wherein: the thickness of the artificial leather is 0.4-1.2 mm; the weight per unit area is 80-450 g/m2; one surface of the artificial leather is a design surface colored with a dye and/or a pigment; and expressions (1)-(3) are satisfied.　(1): L* 1≤55 (2): L* 0>50 (3): ΔL*<-5 In the expressions, L* 1 is the lightness index (L* value) of the design surface in the CIE1976L*a*b* color space, L* 0 is the lightness index (L* value) of the surface on the opposite side from the design surface in the CIE1976L*a*b* color space, and ΔL* is difference between the L* value of the design surface and the L* value of the surface on the opposite side from the design surface (CIELAB1976ab lightness difference, L* 1-L* 0). The lightness indices are values measured with a CIE standard illuminant D65 and a viewing angle of 10°.

SHINOZAKI ATSUSHI (JP)
SAKAGAMI KONOMI (JP)
TSUCHIMOTO TAKAHIRO (JP)

PCT/JP2021/034124

April 07, 2022

September 16, 2021

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TORAY INDUSTRIES (JP)

D06N3/00; G06F3/041

WO2017154904A1

2017-09-14

JP2018127736A	2018-08-16
JP2004308044A	2004-11-04
JP2019183351A	2019-10-24
JPS5711280A	1982-01-20
JPS59150133A	1984-08-28
JP2003071956A	2003-03-12
JP2014185404A	2014-10-02

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