Aryltricarboxyl-attached pigment-based inks with improved slewing decap

Patent metadata

Field	Value
Publication number	US-9382437-B2
Application number	US-43861106-A
Country	US
Kind code	B2
Filing date	May 19, 2006
Priority date	Sep 30, 2005
Publication date	Jul 5, 2016
Grant date	Jul 5, 2016

Abstract

Compositions, systems, and methods for ink-jet printing having improved slewing decap time can comprise a pigment having an aryltricarboxyl group covalently attached thereto; at least 12 wt % of an anti-slewing decap cosolvent selected from the group consisting of 2-pyrrolidone, derivatized 2-pyrrolidone, and mixtures thereof; and a liquid vehicle.

First claim

What is claimed is:

1. An ink-jet ink composition, comprising:
(a) colorant consisting of pigment particles, the pigment particles comprising a pigment having an aryltricarboxyl group covalently attached thereto;
(b) from 14 wt % to 18 wt % of an anti-slewing decap cosolvent selected from the group consisting of 2-pyrrolidone, derivatized 2-pyrrolidone, and mixtures thereof; and
(c) a liquid vehicle.

2. The ink-jet ink of claim 1 , wherein the aryltricarboxyl group is an aryltricarboxylic acid.

3. The ink-jet ink of claim 1 , wherein the aryltricarboxyl group is an aryltricarboxylate having sodium, lithium, potassium, or a positively charged amine as its counterion.

4. The ink-jet ink of claim 1 , wherein the aryltricarboxyl group is a benzenetricarboxyl group.

5. The ink-jet ink of claim 1 , wherein the aryltricarboxyl group is a napthalenetricarboxyl group or a biphenyltricarboxyl group.

6. The ink-jet ink of claim 1 , wherein the aryltricarboxyl group is a 3,4,5-benzenetricarboxylic acid, where the pigment is attached at the 1-position of the 3,4,5-benzenetricarboxylic acid.

7. The ink-jet ink of claim 1 , wherein the aryltricarboxyl group is a 3,4,5-benzenetricarboxylate having sodium, lithium, potassium, or a positively charged amine as its counterion, where the pigment is attached at the 1-positon of the 3,4,5-benzenetricarboxylate.

8. The ink-jet ink of claim 1 , wherein the pigment is carbon black.

9. The ink-jet ink of claim 1 , wherein the anti-slewing decap cosolvent consists essentially of the 2-pyrrolidone.

10. The ink-jet ink of claim 1 , wherein the ink-jet ink composition has an uncapped slewing capability of at least 5 seconds without a substantial reduction in print quality.

11. The ink-jet ink of claim 1 , wherein the ink-jet ink composition has an uncapped slewing capability of at least 8 seconds without a substantial reduction in print quality.

12. The ink-jet ink of claim 1 , wherein the aryltricarboxyl group is an aryltetracarboxyl group.

13. The ink-jet ink of claim 1 , wherein the aryltricarboxyl group is an arylpentacarboxyl group.

14. A method for increasing slewing time of an ink-jet ink architecture without significant decap, comprising:
(a) providing an ink-jet ink, comprising:
(i) colorant consisting of pigment particles, the pigment particles comprising a pigment having an aryltricarboxyl group covalently attached thereto,
(ii) at least 12 wt % of an anti-slewing decap cosolvent selected from the group consisting of 2-pyrrolidone, derivatized 2-pyrrolidone, and mixtures thereof, and
(iii) a liquid vehicle;

(b) loading said ink-jet ink in an ink-jet architecture; and
(c) configuring the ink-jet architecture to allow for slewing of at least 5 seconds between firing without the requirement of capping the architecture during said slewing, and without a substantial reduction in print quality.

15. The method of claim 14 , wherein the aryltricarboxyl group is an aryltricarboxylic acid.

16. The method of claim 14 , wherein the aryltricarboxyl group is an aryltricarboxylate having sodium, lithium, potassium, or a positively charged amine as its counterion.

17. The method of claim 14 , wherein the aryltricarboxyl group is a benzenetricarboxyl group.

18. The method of claim 14 , wherein the aryltricarboxyl group is a napthalenetricarboxyl group or a biphenyltricarboxyl group.

19. The method of claim 14 , wherein the aryltricarboxyl group is a 3,4,5-benzenetricarboxylic acid, where the pigment is attached at the 1-positon of the 3,4,5-benzenetricarboxylic acid.

20. The method of claim 14 , wherein the aryltricarboxyl group is a 3,4,5-benzenetricarboxylate having sodium, lithium, potassium, or a positively charged amine as its counterion, where the pigment is attached at the 1-positon of the 3,4,5-benzenetricarboxylate.

21. The method of claim 14 , wherein the pigment is carbon black.

22. The method of claim 14 , wherein the anti-slewing decap cosolvent consists essentially of the 2-pyrrolidone.

23. The method of claim 14 , wherein the anti-slewing decap cosolvent is present at from 12 wt % to 25 wt %.

24. The method of claim 14 , wherein the anti-slewing decap cosolvent is present at from 14 wt % to 18 wt %.

25. The method of claim 14 , wherein the step of configuring the ink-jet architecture includes configuring the ink-jet architecture to allow for slewing of at least 8 seconds between firing without the requirement of capping the architecture during said slewing.

26. The method of claim 14 , wherein the aryltricarboxyl group is an aryltetracarboxyl group.

27. The method of claim 14 , wherein the aryltricarboxyl group is an arylpentacarboxyl group.

28. A system of printing high quality images with reduced slewing decap, comprising:
(a) an ink-jet ink, comprising:
(i) colorant consisting of pigment particles, the pigment particles comprising a pigment having an aryltricarboxyl group covalently attached thereto,
(ii) at least 12 wt % of an anti-slewing decap cosolvent selected from the group consisting of 2-pyrrolidone, derivatized 2-pyrrolidone, and mixtures thereof, and
(iii) a liquid vehicle;

wherein the ink-jet ink composition has an uncapped slewing capability of at least 5 seconds without a substantial reduction in print quality; and
(b) an ink-jet architecture configured for firing non-image producing drops of the ink-jet ink at intervals of at least 5 seconds when the ink-jet architecture is uncapped and is not actively imaging.

29. The system of claim 28 , further comprising a substrate for accepting the ink-jet ink when the ink-jet architecture is actively imaging.

30. The system of claim 29 , wherein the substrate is plain paper.

31. The system of claim 28 , wherein the aryltricarboxyl group is an aryltricarboxylic acid.

32. The system of claim 28 , wherein the aryltricarboxyl group is an aryltricarboxylate having sodium, lithium, potassium, or a positively charged amine as its counterion.

33. The system of claim 28 , wherein the aryltricarboxyl group is a benzenetricarboxyl group.

34. The system of claim 28 , wherein the aryltricarboxyl group is a napthalenetricarboxyl group or a biphenyltricarboxyl group.

35. The system of claim 28 , wherein the aryltricarboxyl group is a 3,4,5-benzenetricarboxylic acid, where the pigment is attached at the 1-positon of the 3,4,5-benzenetricarboxylic acid.

36. The system of claim 28 , wherein the aryltricarboxyl group is a 3,4,5-benzenetricarboxylate having sodium, lithium, potassium, or a positively charged amine as its counterion, where the pigment is attached at the 1-positon of the 3,4,5-benzenetricarboxylate.

37. The system of claim 28 , wherein the pigment is carbon black.

38. The system of claim 28 , wherein the anti-slewing decap cosolvent consists essentially of the 2-pyrrolidone.

39. The system of claim 28 , wherein the anti-slewing decap cosolvent is present at from 12 wt % to 25 wt %.

40. The system of claim 28 , wherein the anti-slewing decap cosolvent is present at from 14 wt % to 18 wt %.

41. The system of claim 28 , wherein the ink-jet architecture is configured for firing non-image produci

Assignees

• Guo Dennis
• Iu Kai Kong
• Chen Xiaohe
• Hewlett Packard Development Co

Inventors

• Guo Dennis
• Iu Kai Kong
• Chen Xiaohe

Classifications

• C09D11/322 Primary

  Pigment inks · CPC title

• B41J2/01

  Ink jet · CPC title

• B41M5/00

  Duplicating or marking methods; Sheet materials for use therein (by using light-sensitive materials G03; electrography, magnetography G03G {; repeatedly usable boards or tablets for writing or drawing B43L1/00}) · CPC title

• C09D11/32 Primary

  characterised by colouring agents · CPC title