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:
May. 12, 2020
Filed:
Sep. 27, 2016
Dic Corporation, Tokyo, JP;
Toshihisa Kimura, Saitama, JP;
Satoru Toida, Saitama, JP;
DIC CORPORATION, Tokyo, JP;
Abstract
An object of the present invention is to provide an aqueous pigment dispersion that provides an aqueous ink for inkjet recording that contains a reduced number of coarse particles, is excellent in ejection stability, and is applicable to a printer equipped with a high-resolution inkjet head and to provide the aqueous ink for inkjet recording. The present invention relates to an aqueous pigment dispersion containing: a polymer (A) that has anionic groups, has a solubility in water of 0.1 g/100 mL or less and a number average molecular weight within the range of 1,000 to 6,000, and forms fine particles in water when the degree of neutralization of the anionic groups with a basic compound is 100%; a polyhalogenated metal phthalocyanine pigment or a diketopyrrolopyrrole pigment; and water. The invention also relates to an aqueous ink for inkjet recording.