US 12,508,801 B2 · Colored resin sheet and leather-like sheet

Abstract

A colored resin sheet includes a resin and a colorant dispersed in the resin, and has an average value of visible light transmittances for a red range of a wavelength of 680 to 780 nm, of 50% or more. The colored resin sheet has a combination of a lightness L* value and an average value of light transmittances for an entire visible light range of a wavelength of 380 to 780 nm, respectively, of: a) 15 or less, and 15% or more; b) greater than 15 and less than or equal to 35, and 25% or more; or c) greater than 35 and less than or equal to 60, and 40% or more. A leather-like sheet includes a colored resin layer and a surface having a lightness L* value of 40 or less, and has an average value of visible light transmittances for the red range, of 5% or more.

Claims9

Dependent claims

A leather-like sheet, comprising:

a fiber base material;
and
a colored resin layer stacked on the fiber base material,
wherein the colored resin layer includes a resin and a colorant dispersed in the resin;
the colorant includes a reactive special pigment in which polvol is bound to a chromophore;
a thickness of said colored resin layer is from 30 to 90 μm;
a content ratio of said colorant in said colored resin layer is 1 to 13 mass %;
the leather-like sheet has a surface having a lightness L* value of 40 or less;
the leather-like sheet has an average value of visible light transmittances of 5% or more for a red range of a wavelength of 680 to 780 nm;
and
the leather-like sheet is an artificial leather or a synthetic leather.

8 more elements

Dependencies are inferred from the claim text.

Colored resin sheet and leather-like sheet

Life of this patent

Colored resin sheet and leather-like sheet

Life of this patent

Abstract

Claims9