Fluid sets

Patent metadata

Field	Value
Publication number	US-11279841-B2
Application number	US-201816769773-A
Country	US
Kind code	B2
Filing date	Apr 16, 2018
Priority date	Apr 16, 2018
Publication date	Mar 22, 2022
Grant date	Mar 22, 2022

Abstract

A fluid set can include an ink composition having a pH from pH 7 to pH 10 and a crosslinker composition having a basic pH from pH 8 to pH 10. The ink composition can include from 60 wt % to 90 wt % water, from 5 wt % to 30 wt % organic co-solvent, from 1 wt % to 6 wt % pigment, and a latex polymer including an aromatic (meth)acrylate moiety. The crosslinker composition can include from 70 wt % to 95 wt % water, from 1 wt % to 25 wt % organic co-solvent, and from 1 wt % to 10 wt % polycarbodiimide.

First claim

What is claimed is:

1. A fluid set, comprising:
an ink composition having a pH from pH 7 to pH 10, the ink composition, comprising:
from 60 wt % to 90 wt % water,
from 5 wt % to 30 wt % organic co-solvent,
from 1 wt % to 6 wt % pigment,
a polymer dispersant having a weight average molecular weight from 8,000 MW to 28,000 MW and an acid number from 100 to 350, and
a latex polymer including an aromatic (meth)acrylate moiety and including from 0 mol % to 4 mol % styrene; and

a crosslinker composition having a basic pH from pH 8 to pH 10, comprising:
from 70 wt % to 95 wt % water,
from 1 wt % to 25 wt % organic co-solvent, and
from 1 wt % to 10 wt % polycarbodiimide.

2. The fluid set of claim 1 , wherein the latex polymer has an acid number from 2 mg KOH/g to 40 mg KOH/g.

3. The fluid set of claim 1 , wherein the latex polymer further includes a surface (meth)acrylic acid moiety.

4. The fluid set of claim 1 , wherein the aromatic (meth)acrylate moiety is selected from 2-phenoxylethyl methacrylate, 2-phenoxylethyl acrylate, phenyl propyl methacrylate, phenyl propyl acrylate, benzyl methacrylate, benzyl acrylate, phenylethyl methacrylate, phenylethyl acrylate, benzhydryl methacrylate, benzhydryl acrylate, 2-hydroxy-3-phenoxypropyl acrylate, 2-hydroxy-3-phenoxypropyl methacrylate, naphthyl methacrylate, naphthyl acrylate, phenyl methacrylate, phenyl acrylate, or a combination thereof.

5. The fluid set of claim 1 , wherein the polycarbodiimide is present in the crosslinker composition at from 1 wt % to 7 wt %.

6. The fluid set of claim 1 , wherein the polycarbodiimide has a weight average molecular weight of 1,500 Mw to 150,000 Mw.

7. The fluid set of claim 1 , further including a styrene-acrylic polymer adsorbed at a surface of the pigment as a polymer dispersant.

8. A textile printing system, comprising:
an ink composition having a pH from pH 7 to pH 10, the ink composition, comprising:
from 60 wt % to 90 wt % water,
from 5 wt % to 30 wt % organic co-solvent;
from 1 wt % to 6 wt % pigment,
a polymer dispersant having a weight average molecular weight from 8,000 MW to 28,000 MW and an acid number from 100 to 350, and
a latex polymer including an aromatic (meth)acrylate moiety and including from 0 mol % to 4 mol % styrene;

a crosslinker composition having a basic pH from pH 8 to pH 10, comprising:
from 70 wt % to 95 wt % water,
from 1 wt % to 25 wt % organic co-solvent, and
from 1 wt % to 10 wt % polycarbodiimide; and

a fabric substrate.

9. The printing system of claim 8 , wherein the latex polymer further includes a surface (meth)acrylic acid moiety.

10. The printing system of claim 8 , wherein the aromatic (meth)acrylate moiety is selected from 2-phenoxylethyl methacrylate, 2-phenoxylethyl acrylate, phenyl propyl methacrylate, phenyl propyl acrylate, benzyl methacrylate, benzyl acrylate, phenylethyl methacrylate, phenylethyl acrylate, benzhydryl methacrylate, benzhydryl acrylate, 2-hydroxy-3-phenoxypropyl acrylate, 2-hydroxy-3-phenoxypropyl methacrylate, naphthyl methacrylate, naphthyl acrylate, phenyl methacrylate, phenyl acrylate, or a combination thereof.

11. The printing system of claim 8 , wherein the polycarbodiimide is present in the crosslinker composition at from 1 wt % to 7 wt % and has a weight average molecular weight of 1,500 Mw to 150,000 Mw.

12. A method of textile printing, comprising:
ejecting an ink composition having a pH from pH 7 to pH 10 on a fabric substrate, the ink composition comprising from 60 wt % to 90 wt % water, from 5 wt % to 30 wt % organic co-solvent, from 1 wt % to 6 wt % pigment, a polymer dispersant having a weight average molecular weight from 8,000 MW to 28,000 MW and an acid number from 100 to 350 and a latex polymer including an aromatic (meth)acrylate moiety and including from 0 mol % to 4 mol % styrene;
separately ejecting a crosslinker composition having a basic pH from pH 8 to pH 10 onto the fabric substrate, the crosslinker composition comprising from 70 wt % to 95 wt % water, from 1 wt % to 25 wt % organic co-solvent, and from 1 wt % to 10 wt % polycarbodiimide, and
reacting a (meth)acrylic acid surface group of the latex polymer with the polycarbodiimide of the crosslinker composition on the fabric substrate.

13. The method of claim 12 , wherein the fabric substrate includes nylon fibers, polyester fibers, cotton fibers, or a blend thereof.

14. The method of claim 12 , further comprising curing the ink composition contacted with the crosslinker composition on the fabric substrate at a temperature from 120° C. to 180° C. for from 1 to 5 minutes.

15. The fluid set of claim 1 , wherein the latex polymer is a heteropolymer and a configuration of the heteropolymer has a two-hemisphere configuration, smaller spheres of one phase distributed in a larger sphere of the other phase, or interlocking strands of the two phases.

16. The fluid set of claim 1 , wherein the ink composition has a pH from 8.5 to 10.

Assignees

• Hewlett Packard Development Co

Inventors

• Guo Dennis Z
• Zheng Jie
• Ingle David Michael
• Askeland Ronald A

Classifications

• D06P1/54 Primary

  Substances with reactive groups together with crosslinking agents · CPC title

• C09D11/107

  from unsaturated acids or derivatives thereof · CPC title

• D06P5/002

  Locally enhancing dye affinity of a textile material by chemical means · CPC title

• B41M5/0023

  Digital printing methods characterised by the inks used (inks per se C09D11/00) · CPC title

• D06P1/5278

  Polyamides; Polyimides; Polylactames; Polyalkyleneimines · CPC title