Ink set for textile printing and method for producing printed textile item

Patent metadata

Field	Value
Publication number	US-11242649-B2
Application number	US-201815895831-A
Country	US
Kind code	B2
Filing date	Feb 13, 2018
Priority date	Feb 22, 2017
Publication date	Feb 8, 2022
Grant date	Feb 8, 2022

Abstract

An ink set for textile printing is disclosed which includes a pretreatment liquid containing a metal salt, a water-dispersible resin (A), an organic solvent (B) having an SP value of 10 to 14 (cal/cm3)1/2 and water, and an ink containing a pigment, a water-dispersible resin (C) having a glass transition point of 10° C. or higher, an organic solvent (D) and water. A method for producing a printed textile item is also disclosed.

First claim

What is claimed is:

1. An ink set for textile printing, comprising:
a pretreatment liquid containing a metal salt, a water-dispersible resin (A), an organic solvent (B) having an SP value of 10 to 14 (cal/cm 3 ) 1/2 and water, and
an ink containing a pigment, a water-dispersible resin (C) having a glass transition point of 15 to 50° C., an organic solvent (D) and water.

2. The ink set for textile printing according to claim 1 , wherein a glass transition point of the water-dispersible resin (A) of the pretreatment liquid is 15° C. or higher.

3. The ink set for textile printing according to claim 1 , wherein the SP value of the organic solvent (B) of the pretreatment liquid is no higher than an SP value of the organic solvent (D) of the ink.

4. The ink set for textile printing according to claim 1 , wherein an SP value of the organic solvent (D) of the ink is 14.5 (cal/cm 3 ) 1/2 or higher.

5. The ink set for textile printing according to claim 1 , wherein an amount of the organic solvent (B) of the pretreatment liquid is from 5 to 15% by mass relative to a total mass of the pretreatment liquid.

6. The ink set for textile printing according to claim 1 , wherein a glass transition point of the water-dispersible resin (A) of the pretreatment liquid is at least as high as the glass transition point of the water-dispersible resin (C) of the ink.

7. A method for producing a printed textile item, the method comprising:
applying a pretreatment liquid containing a metal salt, a water-dispersible resin (A), an organic solvent (B) having an SP value of 10 to 14 (cal/cm 3 ) 1/2 and water to a substrate, and
applying an ink containing a pigment, a water-dispersible resin (C) having a glass transition point of 15 to 50° C., an organic solvent (D) and water to the substrate to which the pretreatment liquid has been applied.

8. The method for producing a printed textile item according to claim 7 , wherein the substrate is a fabric.

9. The method for producing a printed textile item according to claim 7 , wherein a glass transition point of the water-dispersible resin (A) of the pretreatment liquid is 15° C. or higher.

10. The method for producing a printed textile item according to claim 7 , wherein the SP value of the organic solvent (B) of the pretreatment liquid is no higher than an SP value of the organic solvent (D) of the ink.

11. The method for producing a printed textile item according to claim 7 , wherein an SP value of the organic solvent (D) of the ink is 14.5 (cal/cm 3 ) 1/2 or higher.

12. The method for producing a printed textile item according to claim 7 , wherein an amount of the organic solvent (B) of the pretreatment liquid is from 5 to 15% by mass relative to a total mass of the pretreatment liquid.

13. The method for producing a printed textile item according to claim 7 , wherein a glass transition point of the water-dispersible resin (A) of the pretreatment liquid is at least as high as the glass transition point of the water-dispersible resin (C) of the ink.

14. The ink set for textile printing according to claim 1 , wherein the SP value of the organic solvent (B) of the pretreatment liquid is lower than an SP value of the organic solvent (D) of the ink.

15. The method for producing a printed textile item according to claim 7 , wherein the SP value of the organic solvent (B) of the pretreatment liquid is lower than an SP value of the organic solvent (D) of the ink.

16. The ink set for textile printing according to claim 1 , wherein the organic solvent (B) of the pretreatment liquid comprises a glycol ether.

17. The ink set for textile printing according to claim 1 , wherein the organic solvent (B) of the pretreatment liquid comprises at least one selected from the group consisting of diethylene glycol monobutyl ether, triethylene glycol monoethyl ether and diethylene glycol monomethyl ether.

18. The method for producing a printed textile item according to claim 7 , wherein the organic solvent (B) of the pretreatment liquid comprises a glycol ether.

19. The method for producing a printed textile item according to claim 7 , wherein the organic solvent (B) of the pretreatment liquid comprises at least one selected from the group consisting of diethylene glycol monobutyl ether, triethylene glycol monoethyl ether and diethylene glycol monomethyl ether.

Assignees

• Riso Kagaku Corp

Inventors

• Urano Yuki
• Yamazaki Takahisa
• Imanishi Hideki
• Uozumi Shunsuke

Classifications

• C09D11/322 Primary

  Pigment inks · CPC title

• D06P1/58

  together with other synthetic macromolecular substances · CPC title

• D06P1/5207

  Macromolecular compounds obtained by reactions involving only carbon-to-carbon unsaturated bonds · CPC title

• D06P1/525

  Polymers of unsaturated carboxylic acids or functional derivatives thereof · CPC title

• D06P1/56

  Condensation products or precondensation products prepared with aldehydes · CPC title