ПАТЕНТНЫЙ ПОИСК В РФ
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Ink-jet inks and ink sets exhibiting reduced bleed, wicking, and/or halo effect and associated methods

Патентный поиск по классам МПК-8:

Класс C09D11/02 типографские краски 

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Класс G01D11/00 Элементы конструкции измерительных приборов, не предназначенные специально для особой переменной величины


Классы МПК:C09D11/02 типографские краски 
G01D11/00 Элементы конструкции измерительных приборов, не предназначенные специально для особой переменной величины
Автор(ы): Iu, Kai-kong (San Diego, CA, US)
Parazak, Dennis P. (Oceanside, CA, US)
Guo, Dennis (San Diego, CA, US)
Chen, Xiaohe (San Diego, CA, US)
Stramel, Rodney (San Diego, CA, US)
Doumaux, Howard A. (San Diego, CA, US)
Патентообладатель(и): Hewlett-Packard Development Company, L.P. (Houston, TX, US)
Приоритеты:
подача заявки
28.09.2006
публикация патента
18.09.2012

РЕФЕРАТ (Abstract)

Compositions, systems, and methods for ink-jet printing having improved black to color bleed control, reduced wicking, and/or reduced halo are described. The composition can include a functionalized carbon pigment dispersed in an ink vehicle. The carbon pigment includes functional groups chemically attached thereto. Suitable functional groups includes an aromatic ring structure having multiple carboxyl groups (or salts thereof) attached to the aromatic ring structure, wherein at least two of the multiple carboxyl groups are positioned on adjacent carbon atoms of the aromatic ring structure.
Полный текст Патента US 8268064 + PDF


ФОРМУЛА ИЗОБРЕТЕНИЯ (CLAIMS)

What is claimed is:

1. An ink set for ink-jet printing, comprising: a) a black ink-jet ink including a functionalized carbon pigment dispersed in an ink vehicle, said carbon pigment including a functional group chemically attached thereto, wherein the functional group includes an aromatic ring structure and at least three carboxyl groups attached to the aromatic ring structure, and wherein at least two of the at least three carboxyl groups are positioned on adjacent carbon atoms of the aromatic ring structure; and b) at least one colored ink-jet ink, wherein the colored ink-jet ink is non-reactive with the black ink-jet ink, and wherein a precipitant is not formed upon contact between the colored ink-jet ink and the black ink-jet ink.

2. The ink set of claim 1, wherein the functional group is a benzenetricarboxylic acid.

3. The ink set of claim 1, wherein the aromatic ring is attached directly to the carbon pigment.

4. The ink set of claim 1, wherein the aromatic ring is benzene.

5. The ink set of claim 1, wherein the aromatic ring is naphthalene or biphenyl.

6. The ink set of claim 1, wherein the carboxyl groups are in a salt form.

7. The ink set of claim 1, wherein the carbon pigment comprises from about 2% to about 6% by weight of the ink-jet ink composition.

8. The ink set of claim 1, wherein the ink vehicle of the black ink-jet ink includes at least one organic cosolvent selected from the group consisting of 2-pyrrolidone, tetrathylene glycol, ethoxylated glycerol, 2-methyl-1,3-propanediol, and derivatives thereof.

9. The ink set of claim 1, wherein the black ink-jet ink further comprises a styrene-maleic anhydride copolymer.

10. The ink set of claim 1, wherein the colored ink-jet ink is a dye-containing ink-jet ink.

11. The ink set of claim 1, wherein the colored ink-jet ink is a pigment-containing ink-jet ink.

12. The ink set of claim 1, wherein the black ink-jet ink and the colored ink-jet ink have at least one organic cosolvent in common.

13. An ink set for ink-jet printing, comprising: a) a black ink-jet ink including a functionalized carbon pigment dispersed in an ink vehicle, said ink vehicle comprising 1% to 50% by weight of organic cosolvent comprising 2-pyrrolidone or derivative thereof, said carbon pigment including a functional group chemically attached thereto, wherein the functional group includes an aromatic ring structure and multiple carboxyl groups attached to the aromatic ring structure, and wherein at least two of the multiple carboxyl groups are positioned on adjacent carbon atoms of the aromatic ring structure; and b) at least one colored ink-jet ink, wherein the colored ink-jet ink is non-reactive with the black ink-jet ink, and wherein a precipitant is not formed upon contact between the colored ink-jet ink and the black ink-jet ink.

14. The ink set of claim 13, wherein the functional group is a benzenedicarboxylic acid.

15. The ink set of claim 13, wherein the functional group is selected from the group consisting of a 3,4,5-benzenetricarboxylic acid and a 3,4-benzenedicarboxylic acid, where the 1-position of each functional group corresponds to a site of attachment to the carbon pigment.

16. The ink set of claim 13, wherein the aromatic ring is attached directly to the carbon pigment.

17. The ink set of claim 13, wherein the aromatic ring is benzene.

18. The ink set of claim 13, wherein the aromatic ring is naphthalene or biphenyl.

19. The ink set of claim 13, wherein the carboxyl groups are in a salt form.

20. The ink set of claim 13, wherein the carbon pigment comprises from about 2% to about 6% by weight of the ink-jet ink composition.

21. The ink set of claim 13, wherein the cosolvent of the black ink-jet ink includes at least one member selected from the group consisting of tetrathylene glycol, ethoxylated glycerol, 2-methyl-1,3-propanediol, and derivatives thereof.

22. The ink set of claim 13, wherein the black ink-jet ink further comprises a styrene-maleic anhydride copolymer.

23. The ink set of claim 13, wherein the colored ink-jet ink is a dye-containing ink-jet ink.

24. The ink set of claim 13, wherein the colored ink-jet ink is a pigment-containing ink-jet ink.

25. The ink set of claim 13, wherein the black ink-jet ink and the colored ink-jet ink have at least one organic cosolvent in common.

26. A method of ink-jet printing, comprising printing a black ink-jet ink in contact with a colored ink-jet ink on a paper substrate with substantially no bleed between the black ink-jet ink and the colored ink-jet ink, wherein said black ink-jet ink is non-reactive with respect to the colored ink-jet ink, said black ink-jet ink comprising a functionalized carbon pigment dispersed in an ink vehicle, said carbon pigment including a functional group chemically attached thereto, wherein the functional group includes an aromatic ring structure having at least three carboxyl groups attached to the aromatic ring structure, and wherein at least two of the at least three carboxyl groups are positioned on adjacent carbon atoms of the aromatic ring structure.

27. The method of claim 26, wherein the functional group is a benzenetricarboxylic acid.

28. The method of claim 26, wherein the aromatic ring is attached to the carbon pigment by reaction through an azo group.

29. The method of claim 26, wherein the aromatic ring is benzene.

30. The method of claim 26, wherein the aromatic ring is naphthalene or biphenyl.

31. The method of claim 26, wherein the carboxyl groups are in a salt form.

32. The method of claim 26, wherein the carbon pigment comprises from about 2% to about 6% by weight of the ink-jet ink composition.

33. The method of claim 26, wherein the ink vehicle of the black ink-jet ink includes at least one cosolvent selected from the group consisting of 2-pyrrolidone, tetrathylene glycol, ethoxylated glycerol, 2-methyl-1,3-propanediol, and derivatives thereof.

34. The method of claim 26, wherein the black ink-jet ink further comprises a styrene-maleic anhydride copolymer.

35. The method of claim 26, wherein the colored ink-jet ink is a dye-containing ink-jet ink.

36. The method of claim 26, wherein the colored ink-jet ink is a pigment-containing ink-jet ink.

37. The method of claim 26, wherein the black ink-jet ink and the colored ink-jet ink have at least one organic cosolvent in common.

38. The method of claim 26, wherein the paper substrate is a plain paper substrate.

39. The method of claim 26, wherein the paper substrate is a coated paper substrate.

40. The method of claim 39, wherein the coated paper substrate includes a swellable polymer-based coating.

41. The method of claim 39, wherein the coated paper substrate includes an inorganic porous particulate-based coating.

42. The method of claim 26, wherein the paper substrate includes a divalent ion which can be chelated by at least two of the multiple carboxylic acid groups positioned on adjacent carbon atoms of the aromatic ring structure.

43. A method of ink-jet printing, comprising printing a black ink-jet ink in contact with a colored ink-jet ink on a paper substrate with substantially no bleed between the black ink-jet ink and the colored ink-jet ink, wherein said black ink-jet ink is non-reactive with respect to the colored ink-jet ink, said black ink-jet ink comprising a functionalized carbon pigment dispersed in an ink vehicle, said ink vehicle comprising 1% to 50% by weight of organic cosolvent comprising 2-pyrrolidone or derivative thereof, said carbon pigment including a functional group chemically attached thereto, wherein the functional group includes an aromatic ring structure having multiple carboxyl groups attached to the aromatic ring structure, and wherein at least two of the multiple carboxyl groups are positioned on adjacent carbon atoms of the aromatic ring structure.

44. The method of claim 43, wherein the functional group is a benzenedicarboxylic acid.

45. The method of claim 43, wherein the functional group is selected from the group consisting of a 3,4,5-benzenetricarboxylic acid and a 3,4-benzenedicarboxylic acid, where the 1-position of each functional group corresponds to a site of attachment to the carbon pigment.

46. The method of claim 45, wherein the aromatic ring is attached to the carbon pigment by reaction through an azo group.

47. The method of claim 45, wherein the aromatic ring is benzene.

48. The method of claim 45, wherein the aromatic ring is naphthalene or biphenyl.

49. The method of claim 45, wherein the carboxyl groups are in a salt form.

50. The method of claim 45, wherein the carbon pigment comprises from about 2% to about 6% by weight of the ink-jet ink composition.

51. The method of claim 45, wherein the ink vehicle of the black ink-jet ink includes at least one cosolvent selected from the group consisting of 2-pyrrolidone, tetrathylene glycol, ethoxylated glycerol, 2-methyl-1,3-propanediol, and derivatives thereof.

52. The method of claim 45, wherein the black ink-jet ink further comprises a styrene-maleic anhydride copolymer.

53. The method of claim 45, wherein the colored ink-jet ink is a dye-containing ink-jet ink.

54. The method of claim 45, wherein the colored ink-jet ink is a pigment-containing ink-jet ink.

55. The method of claim 45, wherein the black ink-jet ink and the colored ink-jet ink have at least one organic cosolvent in common.

56. The method of claim 45, wherein the paper substrate is a plain paper substrate.

57. The method of claim 45, wherein the paper substrate is a coated paper substrate.

58. The method of claim 57, wherein the coated paper substrate includes a swellable polymer-based coating.

59. The method of claim 57, wherein the coated paper substrate includes an inorganic porous particulate-based coating.

60. The method of claim 45, wherein the paper substrate includes a divalent ion which can be chelated by at least two of the multiple carboxylic acid groups positioned on adjacent carbon atoms of the aromatic ring structure.


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