IP Library › Granted Patent US 12691680
Granted Patent B2
US 12691680 · App. 18/680,119 · Granted Jul 28, 2026

Ink jet recording method

Inventor: Daisuke Sakuma (Minowa, JP)
Assignee: SEIKO EPSON CORPORATION
B41J2/04573B41J2/14C09D11/322C09D11/326C09D11/54
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Quick Facts
Patent No.
US 12691680
App. No.
18/680,119
Granted
Jul 28, 2026
Kind
B2
Abstract

An ink jet recording method including a first ink attachment step of discharging an ink composition containing a self-dispersing pigment by an ink jet method to attach the ink composition to a fabric, a reaction liquid attachment step of discharging a reaction liquid composition containing an aggregating agent that aggregates components of the ink composition by an ink jet method to attach the reaction liquid composition to the fabric, and a second ink attachment step of discharging an ink composition containing a self-dispersing pigment by an ink jet method to attach the ink composition to the fabric, in which the first ink attachment step, the reaction liquid attachment step, and the second ink attachment step are continuously performed in this order, a time difference from when the ink composition is attached by the first ink attachment step to when the reaction liquid composition is attached to a region to which the ink composition is attached by the reaction liquid attachment step is within 45 milliseconds, and a time difference from when the reaction liquid composition is attached by the reaction liquid attachment step to when the ink composition is attached to a region to which the reaction liquid composition is attached by the second ink attachment step is within 45 milliseconds.

Claims (35)

1 . An ink jet recording method comprising:

a first ink attachment step of discharging an ink composition containing a self-dispersing pigment by an ink jet method to attach the ink composition to a fabric;

a reaction liquid attachment step of discharging a reaction liquid composition containing an aggregating agent that aggregates components of the ink composition by an ink jet method to attach the reaction liquid composition to the fabric; and

a second ink attachment step of discharging an ink composition containing a self-dispersing pigment by an ink jet method to attach the ink composition to the fabric, wherein

the first ink attachment step, the reaction liquid attachment step, and the second ink attachment step are continuously performed in this order,

a time difference from when the ink composition is attached by the first ink attachment step to when the reaction liquid composition is attached to a region to which the ink composition is attached by the reaction liquid attachment step is within 45 milliseconds, and

a time difference from when the reaction liquid composition is attached by the reaction liquid attachment step to when the ink composition is attached to a region to which the reaction liquid composition is attached by the second ink attachment step is within 45 milliseconds.

2 . The ink jet recording method according to claim 1 , wherein

the self-dispersing pigment is a black pigment.

3 . The ink jet recording method according to claim 1 , wherein

the aggregating agent is selected from a polyvalent metal salt, a cationic resin, and an organic acid.

4 . The ink jet recording method according to claim 1 , wherein

the ink composition further contains resin particles, and

the resin particles are self-dispersing resin particles.

5 . The ink jet recording method according to claim 1 , further comprising:

a resin dispersed pigment ink attachment step of discharging a resin dispersed pigment ink composition containing a resin dispersed pigment by an ink jet method to attach the resin dispersed pigment ink composition to the fabric, wherein

the resin dispersed pigment ink attachment step is performed at least one of before the first ink attachment step or after the second ink attachment step,

a time difference from when the resin dispersed pigment ink composition is attached by the resin dispersed pigment ink attachment step to when the ink composition is attached to a region to which the resin dispersed pigment ink composition is attached by the first ink attachment step is 7 milliseconds or longer, and

a time difference from when the ink composition is attached by the second ink attachment step to when the resin dispersed pigment ink composition is attached to a region to which the ink composition is attached by the resin dispersed pigment ink attachment step is 7 milliseconds or longer.

6 . The ink jet recording method according to claim 5 , wherein

the time difference from when the resin dispersed pigment ink composition is attached by the resin dispersed pigment ink attachment step to when the ink composition is attached to the region to which the resin dispersed pigment ink composition is attached by the first ink attachment step is 45 milliseconds or shorter, and

the time difference from when the ink composition is attached by the second ink attachment step to when the resin dispersed pigment ink composition is attached to the region to which the ink composition is attached by the resin dispersed pigment ink attachment step is 45 milliseconds or shorter.

7 . The ink jet recording method according to claim 5 , wherein

the resin dispersed pigment ink composition is a cyan ink.

8 . The ink jet recording method according to claim 5 , further comprising:

a clear ink attachment step of discharging a clear ink composition containing resin particles by an ink jet method to attach the clear ink composition to the fabric, wherein

the resin dispersed pigment ink attachment step is performed after the second ink attachment step, and

the resin dispersed pigment ink composition is attached by the resin dispersed pigment ink attachment step, and then the clear ink composition is attached to a region to which the resin dispersed pigment ink composition is attached by the clear ink attachment step.

9 . The ink jet recording method according to claim 8 , wherein

the clear ink composition contains anionic resin particles.

10 . The ink jet recording method according to claim 1 , wherein

the reaction liquid composition contains a polyhydric alcohol, and

a content of the polyhydric alcohol in the reaction liquid composition is 80% by mass or more with respect to a total amount of organic solvents in the reaction liquid composition.

11 . The ink jet recording method according to claim 1 , wherein

a surface tension of the reaction liquid composition is 28 mN/m or more.