Title:
PIGMENT COMPOSITION PRODUCTION METHOD
Document Type and Number:
WIPO Patent Application WO/2017/065063
Kind Code:
A1
Abstract:
The present invention relates to (1) a pigment composition production method that includes a step in which a raw material pigment composition containing PY74 and a specific byproduct is treated with an oxidizing agent, the content of the specific byproduct with respect to the content of PY74 in the treated pigment composition being 1,200 mg/kg or less, (2) a pigment composition production method that includes a step in which a raw material composition containing PY74 and a specific byproduct is treated with hydrogen peroxide, (3) a method for reducing the content of a byproduct within a raw material pigment composition containing PY74 and a specific byproduct by treating the raw material pigment composition with an oxidizing agent, and (4) a method for mixing a pigment composition produced by the abovementioned methods with an inkjet recording ink and thereby preventing discharge failure of the inkjet recording ink.
Inventors:
ABE SHUICHI (JP)
ODA TSUYOSHI (JP)
IWASAKI TOSHIYA (JP)
NARITA MASAYUKI (JP)
ODA TSUYOSHI (JP)
IWASAKI TOSHIYA (JP)
NARITA MASAYUKI (JP)
Application Number:
PCT/JP2016/079555
Publication Date:
April 20, 2017
Filing Date:
October 04, 2016
Export Citation:
Assignee:
KAO CORP (JP)
International Classes:
C09B67/54; B41M5/00; C09B67/20; C09B29/33
Foreign References:
| JP2004123866A | 2004-04-22 | |||
| JPH07126545A | 1995-05-16 | |||
| JP2008063524A | 2008-03-21 | |||
| JP2016023267A | 2016-02-08 |
Other References:
POSKOCIL, J.: "Aromatic diazo- and azo compounds. XXXIV. Cleavage of the acetyl group in azo dyes derived from acetanilide and preparation of new formazan dyes", COLLECTION OF CZECHOSLOVAK CHEMICAL COMMUNICATIONS, vol. 24, 1959, pages 3746 - 3753, XP055524072
See also references of EP 3363868A4
See also references of EP 3363868A4
Attorney, Agent or Firm:
OHTANI, Tamotsu et al. (JP)
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