Title:
INK FOR THERMAL INK JET INK AND INK CARTRIDGE USING THE SAME
Document Type and Number:
WIPO Patent Application WO/2007/007855
Kind Code:
A1
Abstract:
This invention provides an ink cartridge that, even when stored for a long period of
time, for example, in physical distribution or in such a state that has been mounted
on a recording apparatus, undergoes no significant change in drive pulse, undergoes
no significant change in output images, has satisfactory delivery properties
and printing durability, and, further, undergoes no significant temperature
rise upon printing, and can form good images stably. The ink cartridge comprises
a thermal ink jet head that is provided with a heat generating part for generating
thermal energy for delivering ink through a delivery port and stores ink therein.
The ink cartridge comprises a protective layer provided on a face in which the
heat generating part comes into contact with ink. The ink cartridge is characterized
in that the protective layer contains at least one compound selected from the
group consisting of oxides, nitrides and carbides of silicon, the ink contains
at least one of polyhydric carboxylic acid and its salt, and the total content
of the polyhydric carboxylic acid and its salt is not less than 0.001 mmol/l and
not more than 0.5 mmol/l.
Inventors:
TOMIOKA HIROSHI (JP)
YAMAKAMI HIDEKI (JP)
YAMAKAMI HIDEKI (JP)
Application Number:
PCT/JP2006/314009
Publication Date:
January 18, 2007
Filing Date:
July 07, 2006
Export Citation:
Assignee:
CANON KK (JP)
TOMIOKA HIROSHI (JP)
YAMAKAMI HIDEKI (JP)
TOMIOKA HIROSHI (JP)
YAMAKAMI HIDEKI (JP)
International Classes:
B41J2/01; B41J2/05; B41J2/175; C09D11/02
Domestic Patent References:
| WO1999043754A1 | 1999-09-02 | |||
| WO2002081580A1 | 2002-10-17 |
Foreign References:
| JPH11315238A | 1999-11-16 | |||
| JP2000265097A | 2000-09-26 | |||
| JP2002285052A | 2002-10-03 | |||
| JP2001081380A | 2001-03-27 | |||
| JPH02299854A | 1990-12-12 | |||
| JPH05330048A | 1993-12-14 | |||
| JPH0693218A | 1994-04-05 | |||
| JP2002012803A | 2002-01-15 | |||
| JP2005200954A | 2005-07-28 |
Other References:
YUTAKA HOSODA: "New Dye Chemistry", 21 December 1973, GIHODO SHUPPAN CO., LTD., pages: 396 - 409
Attorney, Agent or Firm:
OKABE, Masao et al. (Fuji Bldg. 2-3, Marunouchi 3-chom, Chiyoda-ku Tokyo 05, JP)
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