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Title:
AQUEOUS DISPERSION, INK COMPOSITION AND INKJET RECORDING METHOD USING SAME
Document Type and Number:
WIPO Patent Application WO/2005/121263
Kind Code:
A1
Abstract:
Disclosed is an aqueous dispersion of a water-insoluble coloring material which is excellent in shelf life stability and suitable for an inkjet ink. Also disclosed is an ink composition excellent in shelf life stability and discharge properties. Further disclosed are an inkjet recording method and recorded matter using such an ink composition. The aqueous dispersion is characterized by containing a water-insoluble coloring material, water, an anionic dispersing agent, an alkylene oxide addition product of phytosterols and/or an alkylene oxide addition product of cholestanols, and the ink composition is characterized by further containing an organic solvent in addition to the above-described components of the aqueous dispersion.

Inventors:
AKATANI YOSHIKI (JP)
FUJII KATSUNORI (JP)
SUZUKI YUJI (JP)
UMEDA MARIKO (JP)
TABE TADAHIKO (JP)
DEJIMA YOSHIYUKI (JP)
Application Number:
PCT/JP2005/010422
Publication Date:
December 22, 2005
Filing Date:
June 07, 2005
Export Citation:
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Assignee:
NIPPON KAYAKU KK (JP)
AKATANI YOSHIKI (JP)
FUJII KATSUNORI (JP)
SUZUKI YUJI (JP)
UMEDA MARIKO (JP)
TABE TADAHIKO (JP)
DEJIMA YOSHIYUKI (JP)
International Classes:
B41J2/01; B41M5/00; C09D11/00; C09D11/322; C09D11/326; C09D11/328; C09D11/38; C09D17/00; D06P1/613; D06P3/54; D06P5/00; D06P5/20; (IPC1-7): C09D17/00; B41J2/01; B41M5/00; C09D11/00
Domestic Patent References:
WO2001092431A12001-12-06
Foreign References:
JPH10183041A1998-07-07
JPH03259970A1991-11-20
JP2003246954A2003-09-05
Other References:
See also references of EP 1754760A4
None
Attorney, Agent or Firm:
Saeki, Norio (Aminosan Kaikan Building 15-8, Nihonbashi 3-chome, Chuo-k, Tokyo 27, JP)
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