Title:
METHOD FOR MANUFACTURING COLORED PARTICLE DISPERSION
Document Type and Number:
WIPO Patent Application WO/2016/002859
Kind Code:
A1
Abstract:
Provided is a method for manufacturing a colored particle dispersion suitable for use in aqueous inks for inkjet printing, the colored particle dispersion providing high-gloss images having excellent rub fastness when printed on a recording medium having low water absorption properties. Also provided are the colored particle dispersion, and a method for manufacturing an aqueous ink for inkjet printing, the aqueous ink comprising the colored particle dispersion. The present invention pertains to: (1) a method for manufacturing a colored particle dispersion by the emulsion polymerization of a dispersion comprising a pigment, a polymerizable monomer, a polymerizable surfactant, and water, the method comprising a step 1, in which a dispersion 1 is obtained by the dispersion of a mixed liquid comprising a pigment, a polymerizable surfactant, water and an organic solvent, a step 2, in which a dispersion 2 is obtained by the removal of the organic solvent from the dispersion 1, and a step 3, in which a colored particle dispersion is obtained by subjecting the disperson 2 and a polymerizable monomer to emulsion polymerization; (2) a method for manufacturing an aqueous ink for inkjet printing, the method having a step for mixing the obtained colored particle dispersion and an organic solvent B; and (3) a colored particle dispersion in which the particles have an average particle diameter of 10-300nm.
More Like This:
Inventors:
MATSUMOTO YUUTA (JP)
Application Number:
PCT/JP2015/069066
Publication Date:
January 07, 2016
Filing Date:
July 01, 2015
Export Citation:
Assignee:
KAO CORP (JP)
International Classes:
C09B67/46; B41J2/01; B41M5/00; C09B67/20; C09D11/322; C09D17/00; C09K23/04; C09K23/42; C09K23/52
Domestic Patent References:
| WO2001094482A1 | 2001-12-13 |
Foreign References:
| JP2005307028A | 2005-11-04 | |||
| JP2003082270A | 2003-03-19 | |||
| JP2003327862A | 2003-11-19 | |||
| JP2005097518A | 2005-04-14 | |||
| JP2008179686A | 2008-08-07 |
Attorney, Agent or Firm:
OHTANI, Tamotsu et al. (JP)
Tamotsu Otani (JP)
Tamotsu Otani (JP)
Download PDF: