The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 03, 2025
Filed:
Mar. 29, 2023
Sanyo Chemical Industries, Ltd., Kyoto, JP;
Seiko Epson Corporation, Tokyo, JP;
Hiroshi Odajima, Kyoto, JP;
Takeshi Yano, Suwa-Gun Fujimi-Machi, JP;
Kenji Kitada, Shiojiri, JP;
Shinichi Naito, Chino, JP;
SANYO CHEMICAL INDUSTRIES, LTD., Kyoto, JP;
SEIKO EPSON CORPORATION, Tokyo, JP;
Abstract
Provided is an aqueous pigment dispersion having high initial dispersibility, high storage stability, and high color developability after printing, and particularly having high rub resistance (rubbing fastness) in cotton fabrics. An aqueous pigment dispersion for an aqueous inkjet ink, including a pigment and an aqueous medium, the pigment being dispersed with a polyurethane resin prepared by reacting an active hydrogen atom-containing component (A) with an organic polyisocyanate component (B), the active hydrogen atom-containing component (A) containing a polycarbonate polyol (a1), the organic polyisocyanate component (B) containing at least one compounds selected from the group consisting of aliphatic polyisocyanates (b1), alicyclic polyisocyanates (b2), and aromatic polyisocyanates (b3), wherein a coating film formed by drying the aqueous pigment dispersion at 50° C. for 12 hours has a storage modulus G' at 160° C. of 1 to 10 MPa.