Ink composition and ink jet recording method

• US 20040035322A1
• Filed: 08/07/2003
• Published: 02/26/2004
• Est. Priority Date: 08/15/2002
• Status: Active Grant

• Current Assignee: Fujifilm Corporation (Fujifilm Holdings Corporation)
• Original Assignee: Fuji Photo Film Co Limited (Fujifilm Holdings Corporation)
• Inventors: Ikeda, Kenji, Ishizuka, Takahiro
• Granted Patent: US 7,041,162 B2
• Time in Patent Office: Days
• US Class Current: 106/31.59
• CPC Class Codes: C09D 11/328 characterised by dyes
• CPC Class Codes: C09D 11/38 characterised by non-macromolecular additives other than solvents, pigments or dyes

Abstract

The present invention provides an aqueous ink composition comprising a color microparticle dispersion including an oil-soluble dye, a hydrophilic organic solvent and a perfluoroalkylenesulfonic acid or a fluorine type surfactant other than derivatives thereof, and an ink jet method for recording an image by using this aqueous ink composition.

Claims

1. An aqueous ink composition comprising:

a color microparticle dispersion including an oil-soluble dye;

a hydrophilic organic solvent; and

a fluorine type surfactant other than a perfluoroalkylenesulfonic acid or derivatives thereof.

2. An aqueous ink composition according to claim 1, wherein the oil-soluble dye includes at least one selected from the group consisting of compounds represented by the following general formulae (I), (II), (Y-I), (M-I) and (C-I):

3. An aqueous ink composition according to claim 1, wherein the vapor pressure of the hydrophilic organic solvent is lower than that of water.

4. An aqueous ink composition according to claim 1, wherein the fluorine type surfactant is an anionic compound.

5. An aqueous ink composition according to claim 1, wherein the fluorine type surfactant is contained in the aqueous ink composition in an amount of 0.2 to 4% by mass.

6. An aqueous ink composition according to claim 1, the composition further comprising at least one compound selected from the group consisting of a neutralizing agent, a hydrophobic high-boiling point organic solvent, a dispersant and a dispersion stabilizer.

7. An aqueous ink composition according to claim 1, wherein the color microparticle dispersion further contains an oil-soluble polymer.

8. An aqueous ink composition according to claim 7, wherein the amount of the hydrophilic organic solvent to be used is 10 to 2000 parts by mass based on 100 parts by mass of the oil-soluble polymer.

9. An aqueous ink composition according to claim 8, wherein an amount of the oil-soluble polymer to be used is 10 to 1000 parts by mass based on 100 parts by mass of the oil-soluble dye.

10. An aqueous ink composition according to claim 1, wherein the oil-soluble dye is the following compound:

11. An ink jet recording method for recording an image by using an aqueous ink composition comprising a color microparticle dispersion including an oil-soluble dye, a hydrophilic organic solvent and a fluorine type surfactant other than a perfluoroalkylenesulfonic acid or derivatives thereof and applying the ink to a surface for receiving the image.

12. An ink jet recording method according to claim 11, wherein the oil-soluble dye includes at least one selected from the group consisting of compounds represented by the general formulae (I), (II), (Y-I), (M-I) and (C-I):

13. An ink jet recording method according to claim 11, wherein a vapor pressure of the hydrophilic organic solvent is lower than that of water.

14. An ink jet recording method according to claim 11, wherein the fluorine type surfactant is an anionic compound.

15. An ink jet recording method according to claim 11, wherein the fluorine type surfactant is contained in the aqueous ink composition in an amount of 0.2 to 4% by mass.

16. An ink jet recording method according to claim 11, wherein the aqueous ink composition further comprises at least one compound selected from the group consisting of a neutralizing agent, a hydrophobic high-boiling point organic solvent, a dispersant and a dispersion stabilizer.

17. An ink jet recording method according to claim 11, wherein the color microparticle dispersion further contains an oil-soluble polymer.

18. An ink jet recording method according to claim 17, wherein the amount of the hydrophilic organic solvent to be used is 10 to 2000 parts by mass based on 100 parts by mass of the oil-soluble polymer.

19. An ink jet recording method according to claim 17, wherein an amount of the oil-soluble polymer to be used is 10 to 1000 parts by mass based on 100 parts by mass of the oil-soluble dye.

20. An ink jet recording method according to claim 11, wherein the oil-soluble dye is the following compound: