Treatment agent for image recording, set of ink and treatment agent for image recording, and recording method

Patent metadata

Field	Value
Publication number	US-10774468-B2
Application number	US-201916269019-A
Country	US
Kind code	B2
Filing date	Feb 6, 2019
Priority date	Mar 30, 2018
Publication date	Sep 15, 2020
Grant date	Sep 15, 2020

Abstract

There is provided a treatment agent for image recording including: a cationic polymer emulsion; and a water-soluble organic solvent including a glycol-based water-soluble organic solvent of which boiling point is not more than 200° C. The treatment agent satisfies the following condition (1): 20≤A≤60. In the condition (1), A: a content amount (% by mass) of the glycol-based water-soluble organic solvent, of which boiling point is not more than 200° C., in an entire amount of the treatment agent for image recording.

First claim

What is claimed is:

1. A treatment agent for image recording comprising:
a cationic polymer emulsion; and
a water-soluble organic solvent including a glycol-based water-soluble organic solvent of which boiling point is not more than 200° C.,
the treatment agent satisfying the following conditions (1) and (5):
20≤ A≤ 60  (1)

0.08≤ B/A≤ 0.9  (5)

wherein in the conditions (1) and (5),
A: a content amount (% by mass) of the glycol-based water-soluble organic solvent, of which boiling point is not more than 200° C., in an entire amount of the treatment agent for image recording, and
B: a solid content amount (% by mass) of the cationic polymer emulsion in the entire amount of the treatment agent for image recording.

2. The treatment agent for image recording according to claim 1 , further satisfying the following condition (2):
2.5≤ B≤ 20  (2)

wherein in the condition (2),
B: a solid content amount (% by mass) of the cationic polymer emulsion in the entire amount of the treatment agent for image recording.

3. The treatment agent for image recording according to claim 1 , further comprising water,
wherein the treatment agent satisfies the following condition (3):
A/C≥ 0.33  (3)

in the condition (3),
A: the content amount (% by mass) of the glycol-based water-soluble organic solvent, of which boiling point is not more than 200° C., in the entire amount of the treatment agent for image recording, and
C: a content amount (% by mass) of the water in the entire amount of the treatment agent for image recording.

4. The treatment agent for image recording according to claim 3 , further satisfying the following condition (4):
A/C≥ 0.58  (4)

wherein in the condition (4),
A: the content amount (% by mass) of the glycol-based water-soluble organic solvent, of which boiling point is not more than 200° C., in the entire amount of the treatment agent for image recording, and
C: the content amount (% by mass) of the water in the entire amount of the treatment agent for image recording.

5. The treatment agent for image recording according to claim 1 , wherein a cationic polymer included in the cationic polymer emulsion includes a urethane structure.

6. The treatment agent for image recording according to claim 5 , wherein the cationic polymer included in the cationic polymer emulsion includes at least one of an acrylic structure and a styrene structure.

7. The treatment agent for image recording according to claim 1 , wherein a cationic polymer included in the cationic polymer emulsion includes an ester-based urethane structure.

8. The treatment agent for image recording according to claim 1 , wherein the glycol-based water-soluble organic solvent, of which boiling point is not more than 200° C., is at least one selected from the group consisting of: ethylene glycol, propylene glycol, 1,2-butanediol and 2,3-butanediol.

9. The treatment agent for image recording according to claim 1 , wherein the glycol-based water-soluble organic solvent, of which boiling point is not more than 200° C., is propylene glycol.

10. The treatment agent for image recording according to claim 1 , further comprising at least one of a nonionic surfactant and a cationic surfactant,
wherein a content amount of the at least one of the nonionic surfactant and the cationic surfactant in the entire amount of the treatment agent for image recording is in a range of 0.2% by mass and 5% by mass.

11. The treatment agent for image recording according to claim 1 , which is usable for recording on a fabric.

12. The treatment agent for image recording according to claim 1 , wherein the water-soluble organic solvent consists essentially of the glycol-based water-soluble organic solvent of which boiling point is not more than 200° C.

13. The treatment agent for image recording according to claim 1 , wherein the cationic polymer emulsion includes a dispersion medium and particles of a cationic polymer dispersed in the dispersion medium.

14. A set usable for recording on a fabric, the set comprising:
a water-based ink for ink-jet recording including a colorant and water; and
the treatment agent for image recording as defined in claim 1 .

15. A recording method for recording on a fabric by using the set as defined in claim 14 , the recording method comprising:
applying the treatment agent for image recording to the fabric;
drying the treatment agent for image recording applied to the fabric; and
jetting of the water-based ink onto the fabric by an ink-jet system.

16. The recording method according to claim 15 , wherein a drying temperature in the drying of the treatment agent for image recording applied to the fabric is in a range of 130° C. to 220° C.

17. The recording method according to claim 15 , wherein in the applying the treatment agent for image recording to the fabric, an application amount, per an area of the fabric, of the treatment agent for image recording is in a range of 4.7 mg/cm 2 to 50 mg/cm 2 .

18. The recording method according to claim 15 , wherein in the drying of the treatment agent for image recording applied to the fabric, mass of the treatment agent for image recording in the fabric is reduced to be not more than 50% by mass of an application amount of the treatment agent for image recording.

19. The recording method according to claim 18 , wherein in the drying of the treatment agent for image recording applied to the fabric, the mass of the treatment agent for image recording in the fabric is reduced to be not more than 30% by mass of the application amount of the treatment agent for image recording.

Assignees

• Brother Ind Ltd

Inventors

• Ito Shinpei
• Taga Yasuhiro

Classifications

• B41J2/16508

  connected with the printer frame · CPC title

• B41J2/2114

  Ejecting specialized liquids, e.g. transparent or processing liquids (B41J2/211 takes precedence) · CPC title

• D06P5/30

  Ink jet printing · CPC title

• D06P1/65118

  Compounds containing hydroxyl groups · CPC title

• C09D11/40

  Ink-sets specially adapted for multi-colour inkjet printing · CPC title