Title:
インクジェット・インク
Document Type and Number:
Japanese Patent JP4683676
Kind Code:
B2
Abstract:
The ink of the invention comprises a vehicle and a colorant, with the vehicle comprising a microemulsion containing at least one substantially water-insoluble organic oil, at least one organic cosolvent, and water and, optionally, at least one amphiphile and at least one high molecular weight colloid. The colorant is a water-insoluble chromaphore that has been chemically modified to be water-soluble by addition of functional groups that impart water solubility. These functional groups are added to the surface of the chromaphore particles, resulting in water-soluble colorant particles. The inks described herein demonstrate high edge acuity, high optical density, fast drying times, reduced bleed, improved halo characteristics, high water fastness, and high smearfastness.
Inventors:
Joseph W. Thang
John Earl Moffat
John Earl Moffat
Application Number:
JP28814497A
Publication Date:
May 18, 2011
Filing Date:
October 21, 1997
Export Citation:
Assignee:
HEWLETT-PACKARD COMPANY
International Classes:
C09D11/00; C09D11/30; B41J2/01; B41M1/06; C09D11/32
Domestic Patent References:
| JP5194884A | ||||
| JP9176534A | ||||
| JP101627A |
Foreign References:
| US5531816 | ||||
| WO1996018695A1 | ||||
| EP0733682A1 |
Attorney, Agent or Firm:
Satoshi Furuya
Takahiko Mizobe
Takahiko Mizobe