Title:
PIGMENT COMPOSITION, PRINTING INK, AND METHOD FOR MANUFACTURING PIGMENT COMPOSITION
Document Type and Number:
WIPO Patent Application WO/2022/000130
Kind Code:
A1
Abstract:
Provided is a disazo pigment in which the polychlorinated biphenyl (PCB) content in addition to the primary aromatic amine (PAA) content is reduced. The pigment composition contains a disazo pigment, an alkylamine that has an alkyl group having a carbon number of 8 or more, and a poly (oxyethylene) alkyl ester that has an alkyl group having a carbon number of 8 or more. Preferably, the disazo pigment includes at least one disazo pigment selected from a group consisting of C. I. Pigment Yellow 83, C. I. Pigment Yellow 13, and C. I. Pigment Yellow 14.
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Inventors:
JI SHUMEI (CN)
MASUKO ISSEI (JP)
HOSAKA MASAKI (JP)
OKADA KYOICHI (JP)
KOBAYASHI NAGATOSHI (JP)
LIAO XIYANG (CN)
ZHAO WEI (CN)
MASUKO ISSEI (JP)
HOSAKA MASAKI (JP)
OKADA KYOICHI (JP)
KOBAYASHI NAGATOSHI (JP)
LIAO XIYANG (CN)
ZHAO WEI (CN)
Application Number:
PCT/CN2020/098546
Publication Date:
January 06, 2022
Filing Date:
June 28, 2020
Export Citation:
Assignee:
DAINIPPON INK & CHEMICALS (JP)
JI SHUMEI (CN)
JI SHUMEI (CN)
International Classes:
C09D11/037; C09B29/08; C09B31/043; C09B31/11; C09B35/20; C09B41/00; C09B62/513; C09B67/36; C09B67/38; C09B67/54; C09D17/00
Foreign References:
| CN1569968A | 2005-01-26 | |||
| CN111072978A | 2020-04-28 | |||
| CN101955682A | 2011-01-26 | |||
| US20150000566A1 | 2015-01-01 | |||
| US4043752A | 1977-08-23 | |||
| US4795807A | 1989-01-03 |
Other References:
See also references of EP 4172279A4
Attorney, Agent or Firm:
DRAGON INTELLECTUAL PROPERTY LAW FIRM (CN)
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