Claims
- 1. An ink set for ink-jet printing, comprising:
- a yellow ink comprising Direct Yellow 132;
- a magenta ink comprising Magenta 377; and
- a cyan ink comprising Direct Blue 199.
- 2. The set of ink-jet inks of claim 1 wherein each of said yellow, cyan, and magenta inks comprises from about 0.1 to about 5 wt % dye.
- 3. The set of ink-jet inks of claim 1 wherein each of said yellow, cyan, and magenta inks comprises from about 2.5 to about 3.5 wt % dye.
- 4. The set of ink-jet inks of claim 1 wherein each of said yellow, cyan, and magenta inks comprises from about 2.5 to about 3 wt % dye.
- 5. The ink set of claim 1 wherein each of said yellow, cyan, and magenta inks further comprises:
- about 5 to about 20 wt % of at least one organic solvent;
- 0 to about 1.5 wt % of at least one component independently selected from the group consisting of surfactants, buffers, biocides, and metal chelators.
- 6. The ink set of claim 5 wherein:
- the organic solvent is selected from the group consisting of nitrogen-containing heterocyclic ketones, diols, glycols, thioglycols, thiodiglycols, glycol ethers, and mixtures thereof.
- 7. The ink set of claim 6 wherein the organic solvent comprises:
- 1,2-diol of from 5 to 7 carbon atoms; and
- optionally from about 0.1 to about 2 wt % dipropylene glycol monobutyl ether.
- 8. The ink set of claim 1 further comprising a black ink.
- 9. The ink set of claim 8 wherein the black ink comprises a dye selected from the group consisting of Reactive Black 31 dye, Direct Black 168, and Pacified Reactive Black 31.
- 10. The ink set of claim 9 wherein the black dye is Pacified Reactive Black 31.
- 11. The ink set of claim 9 wherein the concentration of said black dye is from about 1 to about 10 wt %.
- 12. The ink set of claim 9 wherein the concentration of said dye is from about 2 to about 7 wt %.
- 13. The ink set of claim 9 wherein the concentration of said dye is from about 3 to about 5 wt %.
- 14. A method for ink-jet printing, comprising:
- providing a yellow ink comprising Direct Yellow 132;
- providing a magenta ink comprising Magenta 377;
- providing a cyan ink comprising Direct Blue 199; and
- printing said inks on a printing medium by means of an ink-jet pen.
- 15. The method of claim 14 wherein each of said yellow, cyan, and magenta inks comprises from about 0.1 to about 5 wt % dye.
- 16. The method of claim 14 wherein each of said yellow, cyan, and magenta inks comprises from about 2.5 to about 3.5 wt % dye.
- 17. The method of claim 14 wherein each of said yellow, cyan, and magenta inks comprises from about 2.5 to about 3 wt % dye.
- 18. The method of claim 14 wherein each of said yellow, cyan, and magenta inks further comprises:
- about 5 to about 20 wt % of at least one organic solvent;
- 0 to about 1.5 wt % of at least one component independently selected from the group consisting of surfactants, buffers, biocides, and metal chelators.
- 19. The method of claim 18 wherein:
- the organic solvent is selected from the group consisting of nitrogen-containing heterocyclic ketones, diols, glycols, thioglycols, thiodiglycols, glycol ethers, and mixtures thereof.
- 20. The method of claim 19 wherein the organic solvent comprises:
- 1,2-diol of from 5 to 7 carbon atoms; and
- optionally from about 0.1 to about 2 wt % dipropylene glycol monobutyl ether.
- 21. The method of claim 14 further comprising providing a black ink.
- 22. The method of claim 21 wherein the black ink comprising a dye selected from the group consisting of Reactive Black 31 dye, Direct Black 168, and Pacified Reactive Black 31.
- 23. The method of claim 22 wherein the black dye is Pacified Reactive Black 31.
- 24. The method of claim 22 wherein the concentration of said dye is from about 1 to about 10 wt %.
- 25. The method of claim 22 wherein the concentration of said dye is from about 2to about 7 wt %.
- 26. The method of claim 22 wherein the concentration of said dye is from about 3 to about 5 wt %.
- 27. The method of claim 14 further comprising a black ink wherein the black ink is formed on the printing medium by the addition of the yellow ink, the cyan ink, and the magenta ink.
CROSS-REFERENCE TO RELATED APPLICATIONS
The present application is a continuation-in-part of application Ser. No. 08/810,568, filed Mar. 3, 1997, by Deardurff et al., and entitled "Dye Set For Improved Ink-Jet Image Quality", and directed to a dye set for providing inkjet images having a true representation skin tone colors.
US Referenced Citations (3)
Foreign Referenced Citations (2)
Number |
Date |
Country |
PCTGB9600262 |
Aug 1996 |
WOX |
PCTGB9600300 |
Aug 1996 |
WOX |
Continuation in Parts (1)
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Number |
Date |
Country |
Parent |
810568 |
Mar 1997 |
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