Ozone Stable Ink-Jet Inks

• US 20080188595A1
• Filed: 10/31/2006
• Published: 08/07/2008
• Est. Priority Date: 10/31/2006
• Status: Active Grant

• Current Assignee: Hewlett-Packard Development Company, L.P. (HP Inc.)
• Original Assignee: Hewlett-Packard Development Company, L.P. (HP Inc.)
• Inventors: Deardurff, Larrie
• Granted Patent: US 7,741,385 B2
• Time in Patent Office: Days
• US Class Current: 524/88
• CPC Class Codes: C09D 11/328 characterised by dyes
• CPC Class Codes: C09D 11/40 Ink-sets specially adapted for multi-colour inkjet printing

Abstract

An ink set includes an ozone stable cyan ink, and an ozone stable magenta ink. According to this exemplary embodiment, the ozone stable magenta ink includes an ozone stable magenta dye and a liquid vehicle including a fluorocarbon surfactant formed at least in part from a polymer comprising at least one Formula 1:

Where R1═H, OH, or CH3; and R2═O(CH2)_m—(CF2)_n—CF3 with m=1-3 and n=0-3.

Claims

1. An ink set comprising:

an ozone stable cyan ink; and

an ozone stable magenta ink;

wherein said ozone stable magenta ink includes an ozone stable magenta dye, and a liquid vehicle including a fluorocarbon surfactant formed at least in part from a polymer comprising Formula 1;

2. The ink set of claim 1, wherein said fluorocarbon surfactant formed at least in part from a polymer comprising Formula 1, the fluorocarbon surfactant being represented by Formula 3:

3. The ink set of claim 2, wherein L=4;

m=1;

n=1; and

R₂ and R₄=H.

4. The ink set of claim 1, wherein said ozone stable magenta ink has a surface tension of approximately 28 dynes/cm.

5. The ink set of claim 1, wherein said ozone stable magenta dye has a structure selected from the group consisting of Magenta Dye I, Magenta Dye II, Magenta Dye III and Magenta Dye IV:

6. The ink set of claim 1, wherein said ozone stable magenta ink includes between approximately 0.25% to 2% of said fluorocarbon surfactant formed at least in part from a polymer comprising Formula 1.

7. The ink set of claim 1, wherein said ozone stable cyan ink comprises an ozone stable cyan dye, and a liquid vehicle.

8. The ink set of claim 7, wherein said ozone stable cyan dye comprises

Formula 4

9. The ink set of claim 7, wherein said ozone stable cyan dye comprises

10. The ink set of claim 1, wherein said ozone stable cyan ink is free of said fluorocarbon surfactant formed at least in part from a polymer comprising Formula 1.

11. The ink set of claim 1, wherein said ink set further comprises:

an ozone stable yellow ink; and

an ozone stable black ink.

12. An ozone stable magenta ink comprising:

an ozone stable magenta dye; and

a liquid vehicle including a fluorocarbon surfactant formed at least in part from a polymer comprising Formula 1;

13. The ozone stable magenta ink of claim 12, wherein L=4;

m=1;

n=1; and

R₂ and R₄═

H.

14. The ink of claim 12, wherein said ozone stable magenta ink has a surface tension of approximately 28 dynes/cm.

15. The ink of claim 12, wherein said ozone stable magenta dye has a structure selected from the group consisting of Magenta Dye I, Magenta Dye II, Magenta Dye III and Magenta Dye IV:

16. The ink of claim 12, wherein said ozone stable magenta ink includes between approximately 0.25% to 2% of said fluorocarbon surfactant formed at least in part from a polymer comprising at least one Formula 1:

17. An ink set comprising

an ozone stable cyan ink including an ozone stable cyan dye having the following structure

Formula 4

18. The ink set according to claim 17 comprising:

an ozone stable cyan ink including an ozone stable cyan dye having the following structure

19. The ink set of claim 18 wherein the fluorocarbon surfactant is represented by Formula 3:

21. The ink set of claim 18, wherein said ozone stable cyan ink is free of said fluorocarbon surfactant formed at least in part from a polymer comprising Formula 1:

20. The ozone stable magenta ink of claim 112, wherein L=4;

m=1;

n=1; and

R₂ and R₄=H.