Title:
COLORED FILM, COLORING SHEET, AND COSMETIC METHOD
Document Type and Number:
Japanese Patent JP2021020860
Kind Code:
A
Abstract:
To provide a colored film that is superior in keeping coloration with a pigment for a long time.SOLUTION: A colored film (10a) has a structure (11) containing regenerated cellulose, on which pigment particles (12) with a refractive index of 1.6 or less are supported. The colored film (10a) is 200 nm or more and 2000 nm or less in thickness. The pigment particles (12) have an average particle size of 300 nm or less, and the particle size of each pigment particle (12) is equal to or less than the thickness of the colored film (10a).SELECTED DRAWING: Figure 1
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Inventors:
AOKI TAKAHIRO
KAWASHIMA TOMOKO
TANIIKE YUKO
KAWASHIMA TOMOKO
TANIIKE YUKO
Application Number:
JP2019136498A
Publication Date:
February 18, 2021
Filing Date:
July 24, 2019
Export Citation:
Assignee:
PANASONIC IP MAN CORP
International Classes:
A61K8/73; A61K8/02; A61K8/19; A61K8/26; A61K8/27; A61K8/29; A61Q1/02
Attorney, Agent or Firm:
Koichi Kamata
Mitsuhiko Nishio
Mitsuhiko Nishio