Title:
WATER BASE PIGMENT INK COMPOSITION FOR INNER LEAD TYPE WRITING INSTRUMENT
Document Type and Number:
WIPO Patent Application WO/2004/063297
Kind Code:
A1
Abstract:
A water base pigment ink composition for inner lead type writing instrument not containing any white inorganic pigments and white resin particles as a colorant, which comprises a pigment and a water soluble resin in respective amounts of 0.5 to 7 wt.% and 2 to 10 wt.% based on the whole amount of ink and which exhibits a viscosity of 3.5 to 10 mPa·s.
Inventors:
KAWAUCHI KAZUHIRO (JP)
OMATSU TAKESHI (JP)
OMATSU TAKESHI (JP)
Application Number:
PCT/JP2003/016904
Publication Date:
July 29, 2004
Filing Date:
December 26, 2003
Export Citation:
Assignee:
SAKURA COLOR PROD CORP (JP)
KAWAUCHI KAZUHIRO (JP)
OMATSU TAKESHI (JP)
KAWAUCHI KAZUHIRO (JP)
OMATSU TAKESHI (JP)
International Classes:
C09D11/16; (IPC1-7): C09D11/16; B43K7/01; B43K8/02
Foreign References:
| JPH11241042A | 1999-09-07 | |||
| JP2000129189A | 2000-05-09 | |||
| JP2002053788A | 2002-02-19 | |||
| US20010032567A1 | 2001-10-25 | |||
| JPS6397670A | 1988-04-28 |
Attorney, Agent or Firm:
Miyazaki, Tadaaki (9F Facade Esaka Building,, 23-43, Esaka cho 1-chom, Suita-shi Osaka, JP)
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