Title:
METHOD FOR PRODUCING AQUEOUS PIGMENT DISPERSION
Document Type and Number:
WIPO Patent Application WO/2017/104801
Kind Code:
A1
Abstract:
The present invention relates to: [1] a method for producing an aqueous pigment dispersion, which comprises a step 1 for obtaining an aqueous dispersion (C) by mixing an aqueous dispersion (A), in which a pigment (I) is dispersed by means of a water-dispersible polymer, and an aqueous dispersion (B) of an autodispersible pigment (II), and a step 2 for obtaining an aqueous pigment dispersion by subjecting the aqueous dispersion (C), which has been obtained in step 1, to a heat treatment at 40°C or higher; and [2] an aqueous pigment dispersion which contains a pigment (I) that is dispersed by means of a water-dispersible polymer and an autodispersible pigment (II), and wherein the water-dispersible polymer is adsorbed onto the pigment (I) and the autodispersible pigment (II).
Inventors:
TANAKA SATOSHI (JP)
ASHIZAWA TAKESHI (JP)
FUKUDA TERUYUKI (JP)
ASHIZAWA TAKESHI (JP)
FUKUDA TERUYUKI (JP)
Application Number:
PCT/JP2016/087544
Publication Date:
June 22, 2017
Filing Date:
December 16, 2016
Export Citation:
Assignee:
KAO CORP (JP)
International Classes:
C09D17/00; B41J2/01; B41M5/00; C09B67/46; C09D11/322
Foreign References:
| JP2009155572A | 2009-07-16 | |||
| JP2007063493A | 2007-03-15 | |||
| JP2004203903A | 2004-07-22 | |||
| JP2011089017A | 2011-05-06 | |||
| JP2010209184A | 2010-09-24 | |||
| JP2006001971A | 2006-01-05 | |||
| JP2008163131A | 2008-07-17 | |||
| JP2012111839A | 2012-06-14 |
Other References:
See also references of EP 3392321A4
Attorney, Agent or Firm:
OHTANI, Tamotsu et al. (JP)
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