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Title:
NON-AQUEOUS INK COMPOSITION AND METHOD FOR PREPARATION THEREOF
Document Type and Number:
WIPO Patent Application WO/2004/003092
Kind Code:
A1
Abstract:
A non-aqueous ink composition containing a solvent, a coloring pigment and a dispersant and having a viscosity at 23°C of 30 mPa · s or less, characterized in that it further comprises solid particles which have substantially no coloring ability and are capable of preventing the movement of the coloring pigment, during the printing onto a recording paper, from the front surface of the recording paper to the backside thereof. The non-aqueous ink composition has a low viscosity and allows the formation of an image having high quality being reduced in strike-through and oozing and thus of high quality, even when use is made of a recording paper not being specially processed, that is, an ordinary paper.

Inventors:
ENDO TOSHIHIRO (JP)
OGAWA HIROYUKI (JP)
OKAWA TERUAKI (JP)
MATSUMOTO OSAMU (JP)
YAMAMOTO YASUO (JP)
Application Number:
PCT/JP2003/007935
Publication Date:
January 08, 2004
Filing Date:
June 23, 2003
Export Citation:
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Assignee:
RISO KAGAKU CORP (JP)
ENDO TOSHIHIRO (JP)
OGAWA HIROYUKI (JP)
OKAWA TERUAKI (JP)
MATSUMOTO OSAMU (JP)
YAMAMOTO YASUO (JP)
International Classes:
B41J2/01; B41M5/00; C09D11/00; C09D11/322; C09D11/324; C09D11/326; C09D11/36; C09D11/38; (IPC1-7): C09D11/02
Foreign References:
JPH10219174A1998-08-18
JPH10120961A1998-05-12
JPH11209666A1999-08-03
JPH10168368A1998-06-23
EP0741174A21996-11-06
EP0726300A11996-08-14
EP0110161A11984-06-13
Attorney, Agent or Firm:
Yanagida, Masashi (7F Shin-Yokohama KS Bldg., 3-18-3, Shin-Yokohama, Kohoku-k, Yokohama-shi Kanagawa, JP)
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