Highly bleed-alleviating ink composition

• US 20030037700A1
• Filed: 07/31/2002
• Published: 02/27/2003
• Est. Priority Date: 08/02/2001
• Status: Active Grant

• Current Assignee: Mind Fusion, LLC (Ascend Innovation Management, LLC)
• Original Assignee: BenQ Corporation (Qisda Corporation)
• Inventors: Lin, Yu-Ting, Leu, Yi-Jing, Shen, Yu-Chang, Sir, In-Shan, Chien, Chia-Hsin
• Granted Patent: US 6,899,753 B2
• Time in Patent Office: Days
• US Class Current: 106/31.58
• CPC Class Codes: C09D 11/32 characterised by colouring agents
• CPC Class Codes: C09D 11/322 Pigment inks
• CPC Class Codes: C09D 11/40 Ink-sets specially adapted for multi-colour inkjet printing

Abstract

A highly bleed-alleviating ink composition including at least one colorant, an aqueous media, a linear diol, and a humectant. The main feature of the ink composition is the addition of the linear diol. When the ink composition is applied in ink-jet printing, not only is the bleeding between black ink and color ink alleviated, but also water-fastness and printing quality are improved.

Claims

1. An ink composition, comprising:

at least one colorant;

an aqueous media;

a linear diol; and

a humectant.

2. The ink composition as claimed in claim 1, wherein the colorant is a dye.

3. The ink composition as claimed in claim 1, wherein the colorant is a pigment.

4. The ink composition as claimed in claim 1, wherein the linear diol is present in an amount of 0.1 to 20 weight %.

5. The ink composition as claimed in claim 1, further comprising a surfactant.

6. The ink composition as claimed in claim 1, further comprising a pH buffer solution.

7. The ink composition as claimed in claim 1, further comprising a chelating agent.

8. The ink composition as claimed in claim 1, further comprising a biocide.

9. The ink composition as claimed in claim 1, wherein the linear diol is 1,1-ethandiol, 1,2-ethandiol, 1,1-propandiol, 1,2-propandiol, 1,3-propandiol, 2,2-propandiol, 1,1-butandiol, 1,2-butandiol, 1,3-butandiol, 1,4-butandiol, 2,3-butandiol, 2,2-butandiol, 1,1-pentandiol, 1,2-pentandiol, 1,3-pentandiol, 1,4-pentandiol, 1,5-pentandiol, 2,4-pentandiol, 2,3-pentandiol, 3,3-pentandiol, 2,2-pentandiol, 1,1-hexandiol, 1,2-hexandiol, 1,3-hexandiol, 1,4-hexandiol, 1,5-hexandiol, 1,6-hexandiol, 2,5-hexandiol, 2,4-hexandiol, 2,3-hexandiol, 2,2-hexandiol, 3,3-hexandiol, 1,1-heptandiol, 1,2-heptandiol, 1,3-heptandiol, 1,4-heptandiol, 1,5-heptandiol, 1,6-heptandiol, 1,7-heptandiol, 2,6-heptandiol, 2,5-heptandiol, 3,5-heptandiol, 2,4-heptandiol, 3,4-heptandiol, 3,3-heptandiol, 4,4-heptandiol, 1,1-octandiol, 1,2-octandiol, 1,3-octandiol, 1,4-octandiol, 1,5-octandiol, 1,6-octandiol, 1,7-octandiol, 1,8-octandiol, 2,7-octandiol, 2,3-octandiol, 2,6-octandiol, 3,6-octandiol, 3,3-octandiol, 4,5-octandiol, 4,4-octandiol, 1,1-nonandiol, 1,2-nonandiol, 1,3-nonandiol, 1,4-nonandiol, 1,5-nonandiol, 1,6-nonandiol, 1,7-nonandiol, 1,8-nonandiol, 1,9-nonandiol, 2,8-nonandiol, 2,7-nonandiol, 2,6-nonandiol, 2,5-nonandiol, 2,4-nonandiol, 2,3-nonandiol, 2,2-nonandiol, 3,7-nonandiol, 3,6-nonandiol, 3,5-nonandiol, 3,4-nonandiol, 3,3-nonandiol, 4,6-nonandiol, 4,5-nonandiol, 4,4-nonandiol, 5,5-nonandiol, 1,1-decanediol, 1,2-decanediol, 1,3-decanediol, 1,4-decanediol, 1,5-decanediol, 2,9-decanediol, 2,8-decanediol, 2,7-decanediol, 2,6-decanediol, 2,5-decanediol, 2,4-decanediol, 2,3-decanediol, 2,2-decanediol), 3,7-decanediol, 3,6-decanediol, 3,5-decanediol), 3,4-decanediol, 3,3-decanediol, 4,7-decanediol), 4,6-decanediol, 4,5-decanediol, 4,4-decanediol), 5,6-decanediol, or 5,5-decanediol.

10. An ink-jet printing method for alleviating bleeding, comprising:

providing an ink to an ink-jet printing device, wherein the ink includes at least one colorant;

an aqueous media; and

a linear diol for alleviating bleeding of the ink; and

ejecting the ink onto a recording substrate.

11. The method as claimed in claim 10, wherein the colorant is a dye.

12. The method as claimed in claim 10, wherein the colorant is a pigment.

13. The method as claimed in claim 10, wherein the linear diol is present in an amount of 0.1 to 20 weight %.

14. The method as claimed in claim 10, wherein the ink further comprises a humectant.

15. The method as claimed in claim 10, wherein the ink further comprises a surfactant.

16. The method as-claimed in claim 10, wherein the ink further comprises a pH buffer solution.

17. The method as claimed in claim 10, wherein the ink further comprises a chelating agent.

18. The method as claimed in claim 10, wherein the ink further comprises a biocide.

19. The method as claimed in claim 10, wherein the linear diol is 1,1-ethandiol, 1,2-ethandiol, 1,1-propandiol, 1,2-propandiol, 1,3-propandiol, 2,2-propandiol, 1,1-butandiol, 1,2-butandiol, 1,3-butandiol, 1,4-butandiol, 2,3-butandiol, 2,2-butandiol, 1,1-pentandiol, 1,2-pentandiol, 1,3-pentandiol, 1,4-pentandiol, 1,5-pentandiol, 2,4-pentandiol, 2,3-pentandiol, 3,3-pentandiol, 2,2-pentandiol, 1,1-hexandiol, 1,2-hexandiol, 1,3-hexandiol, 1,4-hexandiol, 1,5-hexandiol, 1,6-hexandiol, 2,5-hexandiol, 2,4-hexandiol, 2,3-hexandiol, 2,2-hexandiol, 3,3-hexandiol, 1,1-heptandiol, 1,2-heptandiol, 1,3-heptandiol, 1,4-heptandiol, 1,5-heptandiol, 1,6-heptandiol, 1,7-heptandiol, 2,6-heptandiol, 2,5-heptandiol, 3,5-heptandiol, 2,4-heptandiol, 3,4-heptandiol, 3,3-heptandiol, 4,4-heptandiol, 1,1-octandiol, 1,2-octandiol, 1,3-octandiol, 1,4-octandiol, 1,5-octandiol, 1,6-octandiol, 1,7-octandiol, 1,8-octandiol, 2,7-octandiol, 2,3-octandiol, 2,6-octandiol, 3,6-octandiol, 3,3-octandiol, 4,5-octandiol, 4,4-octandiol, 1,1-nonandiol, 1,2-nonandiol, 1,3-nonandiol, 1,4-nonandiol, 1,5-nonandiol, 1,6-nonandiol, 1,7-nonandiol, 1,8-nonandiol, 1,9-nonandiol, 2,8-nonandiol, 2,7-nonandiol, 2,6-nonandiol, 2,5-nonandiol, 2,4-nonandiol, 2,3-nonandiol, 2,2-nonandiol, 3,7-nonandiol, 3,6-nonandiol, 3,5-nonandiol, 3,4-nonandiol, 3,3-nonandiol, 4,6-nonandiol, 4,5-nonandiol, 4,4-nonandiol, 5,5-nonandiol, 1,1-decanediol, 1,2-decanediol, 1,3-decanediol, 1,4-decanediol, 1,5-decanediol, 2,9-decanediol, 2,8-decanediol, 2,7-decanediol, 2,6-decanediol, 2,5-decanediol, 2,4-decanediol, 2,3-decanediol, 2,2-decanediol), 3,7-decanediol, 3,6-decanediol, 3,5-decanediol), 3,4-decanediol, 3,3-decanediol, 4,7-decanediol), 4,6-decanediol, 4,5-decanediol, 4,4-decanediol), 5,6-decanediol, or 5,5-decanediol.