Invention Grant
- Patent Title: Method for manufacturing aqueous pigment dispersion and aqueous ink for inkjet recording
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Application No.: US15548637Application Date: 2016-02-09
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Publication No.: US10240054B2Publication Date: 2019-03-26
- Inventor: Ryota Hibino , Kumiko Iizasa , Hideki Gambayashi , Shinichi Okada
- Applicant: DIC Corporation
- Applicant Address: JP Tokyo
- Assignee: DIC CORPORATION
- Current Assignee: DIC CORPORATION
- Current Assignee Address: JP Tokyo
- Agency: Westerman, Hattori, Daniels & Adrian, LLP
- Priority: JP2015-026380 20150213
- International Application: PCT/JP2016/053769 WO 20160209
- International Announcement: WO2016/129585 WO 20160818
- Main IPC: C09D11/38
- IPC: C09D11/38 ; B41J2/01 ; C09D11/322 ; C09D17/00 ; C09D11/10 ; C09D7/63

Abstract:
Provided is a method for producing an aqueous pigment dispersion including a step of dispersing a mixture containing a pigment, an anionic group-containing organic polymer compound, a basic compound, and from 1% to 500% by mass of alkylene oxide adduct having a polyamine structure with respect to the pigment into water. The step of dispersing includes Step 1 of kneading a mixture which contains a pigment, an anionic group-containing organic polymer compound, a basic compound, and from 1% to 500% by mass of alkylene oxide adduct having a polyamine structure with respect to the pigment, and which contains no water or water equal to or less than 30% by mass with respect to a solid content thereof, and Step 2 of dispersing a kneaded material obtained in Step 1 into water.
Public/Granted literature
- US20180010005A1 METHOD FOR MANUFACTURING AQUEOUS PIGMENT DISPERSION AND AQUEOUS INK FOR INKJET RECORDING Public/Granted day:2018-01-11
Information query
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