公开(公告)号：US20240228786A9

公开(公告)日：2024-07-11

申请号：US18279441

申请日：2022-03-10

Applicant: DIC Corporation

Inventor： Takuya Yoshida ,  Arata Kudo ,  Yukiko Higuchi ,  Akira Kimura

IPC: C09B63/00 ,  C09D11/023 ,  C09D11/037

CPC classification number: C09B63/005 ,  C09D11/023 ,  C09D11/037

Abstract: An object of the present invention is to provide a pigment composition and an ink (in particular, a waterborne ink) that can reduce a viscosity increase over time when an azo lake pigment is used as a pigment and also have excellent color strength and gloss in printed products. The pigment composition according to the present invention includes a divalent metal lake azo pigment, and 0.1% by weight to 20% by weight of a divalent metal salt of a mono- or di-carboxylic acid compound. The divalent metal of the divalent metal salt is preferably an alkaline earth metal ion. The mono- or di-carboxylic acid compound is preferably a mono- or di-carboxylic acid compound having a carbon number of 4 to 20.

公开(公告)号：US20250051638A1

公开(公告)日：2025-02-13

申请号：US18719506

申请日：2022-12-15

Applicant: DIC Corporation

Inventor： Yutaka Takezawa ,  Naoto Sakurai ,  Takuya Yoshida

IPC: C09K11/06

Abstract: A near-infrared fluorescent material that exhibits good dispersibility in a resin is provided, a resin composition containing the near-infrared fluorescent material is provided, and a molded article formed from the resin composition is provided. More specifically, a powdered fluorochrome composition is composed of a near-infrared fluorescent material composed of one or more compounds selected from the group consisting of compounds represented by any of general formulae (I1) to (I4), and a molded article is an article formed from the resin composition.

公开(公告)号：US20240084155A1

公开(公告)日：2024-03-14

申请号：US18274904

申请日：2021-12-09

Applicant: DIC Corporation

Inventor： Shogo Yamada ,  Takuya Yoshida ,  Akira Kimura

IPC: C09D17/00 ,  C09B67/08 ,  C09D11/037

CPC classification number: C09D17/003 ,  C09B67/0007 ,  C09D11/037

Abstract: An object that is to be achieved by the present invention is to provide an azo pigment having excellent transparency, suitable dispersibility, and a low viscosity, an ink, and the like. An azo pigment according to the present invention has a zeta potential of −80 to −30 mV in isopropanol (IPA). The content of a metal element in the azo pigment is preferably 0.05 to 2.00 parts by mass relative to 100 parts by mass of the azo pigment. The metal element is preferably an iron element. The ratio (Fe/C) of the concentration Fe (atomic %) of an iron element in the surfaces of particles of the azo pigment to the concentration C (atomic %) of a carbon element in the surfaces of the particles of the azo pigment which are determined by X-ray photoelectron spectroscopy is preferably 0.20 or less.

公开(公告)号：US20240132724A1

公开(公告)日：2024-04-25

申请号：US18279441

申请日：2022-03-10

Applicant: DIC Corporation

Inventor： Takuya Yoshida ,  Arata Kudo ,  Yukiko Higuchi ,  Akira Kimura

IPC: C09B63/00 ,  C09D11/023 ,  C09D11/037

CPC classification number: C09B63/005 ,  C09D11/023 ,  C09D11/037

Abstract: An object of the present invention is to provide a pigment composition and an ink (in particular, a waterborne ink) that can reduce a viscosity increase over time when an azo lake pigment is used as a pigment and also have excellent color strength and gloss in printed products. The pigment composition according to the present invention includes a divalent metal lake azo pigment, and 0.1% by weight to 20% by weight of a divalent metal salt of a mono- or di-carboxylic acid compound. The divalent metal of the divalent metal salt is preferably an alkaline earth metal ion. The mono- or di-carboxylic acid compound is preferably a mono- or di-carboxylic acid compound having a carbon number of 4 to 20.