Ozone stable ink-jet inks

• US 7,741,385 B2
• Filed: 10/31/2006
• Issued: 06/22/2010
• 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
• Primary Examiner(s): Jagannathan; Vasu
• Assistant Examiner(s): Kollias; Alexander C
• Application Number:
  US11/555,069
• Publication Number:
  US 20080188595A1
• Time in Patent Office: 1,330 Days
• Field of Search: 523/160, 523/161, 528/25, 347/100, 347/102, 106/31.01, 106/31.13, 106/31.77, 106/31.6, 106/31.57, 106/31.59, 106/311
• US Class Current: 523/160
• 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=OH and R2=O(CH2)_m-(CF2)_nCF3 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 I, the fluorocarbon surfactant being represented by Formula 3:

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

4. 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 I.

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

6. The ink set of claim 5, wherein said ozone stable cyan dye comprises

Formula 4

7. The ink set of claim 5, wherein said ozone stable cyan dye comprises

8. 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 I.

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

an ozone stable yellow ink; and

an ozone stable black ink.

10. 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;

11. The ink of claim 10, wherein said ozone stable magenta ink has a surface tension of approximately 28 dynes/cm.

12. The ink of claim 10, 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:

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