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Title:
AQUEOUS PIGMENT DISPERSION AND INKJET INK
Document Type and Number:
WIPO Patent Application WO/2022/220150
Kind Code:
A1
Abstract:
The present invention relates to: an aqueous pigment dispersion characterized by including a bisacetoacetarylide pigment (A), a dispersant (B), and an aqueous medium (C), and by having an absorbance ratio represented by (absorbance at a wavelength of 408 nm)/(absorbance at a wavelength of 450 nm) of 1.40 or more; and an inkjet ink in which the aqueous pigment dispersion is used.

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Inventors:
ENOMOTO YUUYA (JP)
SEKI TOSHIHIRO (JP)
KITADE MAIKO (JP)
Application Number:
PCT/JP2022/016450
Publication Date:
October 20, 2022
Filing Date:
March 31, 2022
Export Citation:
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Assignee:
DAINIPPON INK & CHEMICALS (JP)
International Classes:
C09B33/153; B41J2/01; B41M5/00; C09B67/20; C09B67/46; C09C3/10; C09D11/326; C09D17/00; D06P5/30
Foreign References:
JP2007254735A2007-10-04
JP2005060419A2005-03-10
EP1225207A12002-07-24
US20140139576A12014-05-22
JP2016199643A2016-12-01
Other References:
TAKU MITSUHASHITAKAYUKI KATO: "Inkjet Printing System for Textile Printing", JOURNAL OF THE IMAGING SOCIETY OF JAPAN, vol. 41, no. 2, 2002, pages 189 - 197
Attorney, Agent or Firm:
OGAWA Shinji (JP)
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