Title:
顔料成分及び染料成分を有する高分子着色剤並びに対応するインク組成物
Document Type and Number:
Japanese Patent JP4686332
Kind Code:
B2
Abstract:
Colorants having pigment and dye components having improved chroma and good water and lightfastness are disclosed and described. A polymeric colorant can include a pigment having a polymer covalently attached thereto and a dye covalently attached to the polymer. A dispersant can be covalently attached to at least one of the pigment, the polymer, and the dye. By including both a pigment and a dye component in the polymeric colorant, improved chroma, waterfastness, and lightfastness can be realized. The dye and pigment components can be substantially the same color, or can have different colors, depending on the desired appearance. The polymeric colorants of the present invention are well suited to inclusion in ink-jet compositions, although many other applications are considered suitable for the instant polymeric colorants.
Inventors:
Thunder Vasdevan
Application Number:
JP2005308030A
Publication Date:
May 25, 2011
Filing Date:
October 24, 2005
Export Citation:
Assignee:
Hewlett-Packard Development Company
International Classes:
C09B69/10; B41J2/01; B41M5/00; C09B29/30; C09B62/505; C09D11/00; C09D17/00
Domestic Patent References:
| JP2003519709A | ||||
| JP11293164A | ||||
| JP10060298A |
Foreign References:
| WO2003095568A1 | ||||
| WO2003095565A1 |
Attorney, Agent or Firm:
Satoshi Furuya
Takahiko Mizobe
Kiyoharu Nishiyama
Takahiko Mizobe
Kiyoharu Nishiyama