Title:
INFRARED-TRANSMITTING BLACK PIGMENT
Document Type and Number:
Japanese Patent JP2023019424
Kind Code:
A
Abstract:
To provide ink, a printed matter, a coating material, coating, a plastic, a fiber, a film, a resist for a black matrix, a resist for a photospacer, a cosmetic and a cured product thereof by using a black pigment having permeability in the infrared region and high absorptivity in the visible region.SOLUTION: It was found that a melanin pigment, which is made from a specific substance, has 1.0% or less of an indole component and has an average particle diameter of 1.0 μm to 15 μm or less, is a black pigment having high permeability in the infrared region while having low permeability in the visible region.SELECTED DRAWING: Figure 1
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Inventors:
SHOMURA KENJI
Application Number:
JP2021124128A
Publication Date:
February 09, 2023
Filing Date:
July 29, 2021
Export Citation:
Assignee:
DAINIPPON INK & CHEMICALS
International Classes:
C09B57/00; A61K8/72; A61Q1/02; C09D7/41; C09D201/00; C12P13/00
Attorney, Agent or Firm:
Ogawa Shinji
Akihiro Iwamoto
Takayuki Ohno
Akihiro Iwamoto
Takayuki Ohno