Title:
AQUEOUS INKJET YELLOW INK, INK SET, AND METHOD FOR PRODUCING PRINTED MATTER
Document Type and Number:
WIPO Patent Application WO/2020/129904
Kind Code:
A1
Abstract:
One embodiment of the present invention pertains to an aqueous inkjet yellow ink including a yellow pigment (A) having a specific partial structure, an organic solvent, a basic organic compound, and water, wherein: the yellow pigment (A) content is 1-10 mass% in the total amount of the aqueous inkjet yellow ink; the basic organic compound includes 0.1-1.25 mass% of a basic organic compound (B) having a pKa value at 25°C of 9.5 or lower in the total amount of the aqueous inkjet yellow ink; and the organic solvent content is 5 mass% or less in the total amount of the aqueous inkjet yellow ink, the organic solvent having a boiling point at 1 atm of 240°C or higher.
More Like This:
Inventors:
YODA ATSUSHI (JP)
JONAI KAZUHIRO (JP)
SUZUKI NORIO (JP)
JONAI KAZUHIRO (JP)
SUZUKI NORIO (JP)
Application Number:
PCT/JP2019/049201
Publication Date:
June 25, 2020
Filing Date:
December 16, 2019
Export Citation:
Assignee:
TOYO INK SC HOLDINGS CO LTD (JP)
TOYO INK CO LTD (JP)
TOYO INK CO LTD (JP)
International Classes:
C09B19/02; B41J2/01; B41M5/00; C09B11/12; C09B29/20; C09B47/04; C09B57/04; C09D11/322; C09D11/40
Foreign References:
| JPH11172180A | 1999-06-29 | |||
| JP2010235937A | 2010-10-21 | |||
| JP2017155092A | 2017-09-07 | |||
| JP2007145887A | 2007-06-14 | |||
| JP2009167265A | 2009-07-30 | |||
| JP2003313480A | 2003-11-06 | |||
| JP6592869B1 | 2019-10-23 | |||
| JP2018235199A | 2018-12-17 |
Other References:
"Chemical Handbook, Basic Edition", 2004, MARUZEN PUBLISHING CO., LTD.
See also references of EP 3901220A4
See also references of EP 3901220A4
Attorney, Agent or Firm:
MIYOSHI Hidekazu et al. (JP)
Download PDF: