Title:
NON-ACQUEOUS PIGMENT INK
Document Type and Number:
WIPO Patent Application WO/2012/060060
Kind Code:
A1
Abstract:
[Problem] To ensure pigment dispersion stability and ejection stability while also suppressing print-through and achieving high print density. [Solution] A non-aqueous pigment ink containing, at least, a non-aqueous solvent and a pigment which can be self-dispersed in the non-aqueous solvent. The self-dispersible pigment is treated with a compound represented by R1-X or R2-Y-R3 (In the general formula, X represents -SH, -NCO, -NH2, or -NHR (R represents an alkyl group), Y represents -CO-O-O-CO- or -CO-O-O-, the alkyl group may be either linear or branched, and R2 and R3 can be either the same structural units or different structural units.)
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Inventors:
HOSOYA TETSUO (JP)
YAMAMOTO AKIKO (JP)
NISHIMURA ASAYO (JP)
YAMAMOTO AKIKO (JP)
NISHIMURA ASAYO (JP)
Application Number:
PCT/JP2011/005783
Publication Date:
May 10, 2012
Filing Date:
October 17, 2011
Export Citation:
Assignee:
RISO KAGAKU CORP (JP)
HOSOYA TETSUO (JP)
YAMAMOTO AKIKO (JP)
NISHIMURA ASAYO (JP)
HOSOYA TETSUO (JP)
YAMAMOTO AKIKO (JP)
NISHIMURA ASAYO (JP)
International Classes:
C09D11/00; B41J2/01; B41M5/00; C09C1/48; C09C3/08
Foreign References:
| JP2010504409A | 2010-02-12 | |||
| JP2002169486A | 2002-06-14 | |||
| JP2005350563A | 2005-12-22 | |||
| JP2005179482A | 2005-07-07 | |||
| JP2002053768A | 2002-02-19 | |||
| JP2002510736A | 2002-04-09 | |||
| JPH08231915A | 1996-09-10 |
Attorney, Agent or Firm:
YANAGIDA, Masashi et al. (JP)
Seiji Yanagida (JP)
Seiji Yanagida (JP)
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Claims:
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