Dimeric fluorosurfactants for ink-jet inks

• US 9,783,692 B2
• Filed: 09/14/2012
• Issued: 10/10/2017
• Est. Priority Date: 09/14/2012
• Status: Active Grant

• Current Assignee: Hewlett-Packard Development Company, L.P. (HP Inc.)
• Original Assignee: Hewlett-Packard Development Company, L.P. (HP Inc.)
• Inventors: Cagle, Phillip C., Peleshanko, Sergiy
• Primary Examiner(s): MCDONOUGH, JAMES E
• Application Number:
  US14/426,631
• Publication Number:
  US 20150225587A1
• Time in Patent Office: 1,852 Days
• Field of Search: 106 3113, 106 3101
• CPC Class Codes: C09D 11/38 characterised by non-macromolecular additives other than solvents, pigments or dyes
• CPC Class Codes: C09D 11/40 Ink-sets specially adapted for multi-colour inkjet printing
• CPC Class Codes: C09D 11/54 Inks based on two liquids, one liquid being the ink, the other liquid being a reaction solution, a fixer or a treatment solution for the ink

Abstract

The present disclosure provides dimeric fluorosurfactants related methods and ink-jet inks incorporating such fluorosurfactants. As such, an ink-jet ink can comprise a liquid vehicle; a non-ionic fluorosurfactant dimer having the structure CF₃(CF₂)_x(CH₂)_y(CR₂CR₂O)_z-A-(OCR₂CR₂)_a(CH₂)_b(CF₂)_cCF₃, where R is independently H or methyl, A is a bridging unit containing aliphatic or aromatic functionality, x is 3 to 18, y is 0 to 8, z is 0 to 100, a is 0 to 100, b is 0 to 8, and c is 3 to 18; and a colorant.

Claims

1. An ink-jet ink, comprising:

a liquid vehicle;

a non-ionic fluorosurfactant dimer having the structure CF₃(CF₂)_x(CH₂)_y(CR₂CR₂O)_z-A-(OCR₂CR₂)_a(CH₂)_b(CF₂)_cCF₃, where R is independently H or methyl, A is a bridging unit containing aliphatic or aromatic functionality, x is 5, y is 0 to 8, z is 0 to 100, a is 0 to 100, b is 0 to 8, and c is 5; and

a colorant.

2. The ink-jet ink of claim 1, wherein y and b are independently 0 to 4 and z and a are independently 0 to 25.

3. The ink-jet ink of claim 2, wherein a+b+y+z is at least two.

4. The ink-jet ink of claim 1, wherein the non-ionic fluorosurfactant dimer is present in the ink-jet ink at a concentration from 0.01 wt % to 5 wt %.

5. The ink-jet ink of claim 1, wherein the bridging group is a diisocyanate having the structure R(NCO)₂ where R is an organic group having a molecular weight of about 120 to 400.

6. The ink-jet ink of claim 1, wherein the non-ionic surfactant dimer surfactant is selected from the group consisting of a dimer with a single bridging group having the structure BAB;

a blend of two dimers with multiple bridging groups having the structure;

BAB+BA′

B;

a heterodimer with multiple monomer groups having the structure;

BAB′

; and

a blend of a monomer and a dimer having the structure;

B+BAB or B′

+BAB;

wherein B is a monomer, B′

is a monomer that is different than B, A is the bridging group, and A′

is a bridging group that is different than A.

7. The ink-jet ink of claim 1, wherein y and b are the same or z and a are the same.

8. The ink-jet ink of claim 1, further comprising from 0.1 wt % to 40 wt % of a co-solvent.