Granted Patent B2

US 12,480,015 · App. 18/353,500 · Granted Nov 25, 2025

Inventors: Ayato Sato (Kanagawa, JP); Toshihiro Kariya (Kanagawa, JP); Takeshi Miyato (Kanagawa, JP)

Assignee: FUJIFILM Corporation

C09D11/54C09D11/38

Abstract

Claims (32)

1 . An ink jet ink set for an impermeable base material, comprising:

a pretreatment liquid comprising a resin and water; and

an ink comprising a pigment, a resin, and water,

wherein an equilibrium moisture content of a solid content in the pretreatment liquid at 25° C. and 50% RH is 3.0% by mass or less, and

an equilibrium moisture content of a solid content in the ink at 25° C. and 50% RH is 3.0% by mass or less, and

wherein the equilibrium moisture content is a moisture content measured after being stood in a constant-temperature tank at 25° C. and 50% relative humidity (RH) for 24 hours.

2 . The ink jet ink set for an impermeable base material according to claim 1 ,

wherein the equilibrium moisture content of the solid content in the pretreatment liquid at 25° C. and 50% RH is less than the equilibrium moisture content of the solid content in the ink at 25° C. and 50% RH.

3 . The ink jet ink set for an impermeable base material according to claim 1 ,

wherein the resin comprised in the ink comprises resin particles.

4 . The ink jet ink set for an impermeable base material according to claim 1 ,

wherein the resin comprised in the ink comprises resin particles having an acid value of less than 30 mgKOH/g and resin particles having an acid value of 30 mgKOH/g or greater.

5 . The ink jet ink set for an impermeable base material according to claim 4 ,

wherein a mass ratio of a content of the resin particles having an acid value of less than 30 mgKOH/g to a content of the resin particles having an acid value of 30 mgKOH/g or greater is in a range of 1.5 to 4.0.

6 . The ink jet ink set for an impermeable base material according to claim 1 ,

wherein the equilibrium moisture content of the solid content in the ink at 25° C. and 50% RH is 1.5% by mass or less.

7 . The ink jet ink set for an impermeable base material according to claim 1 ,

wherein the equilibrium moisture content of the solid content in the pretreatment liquid at 25° C. and 50% RH is 1.5% by mass or less.

8 . The ink jet ink set for an impermeable base material according to claim 1 ,

wherein the resin comprised in the pretreatment liquid and the resin comprisedin the ink are each an acrylic resin or a urethane resin.

9 . An image recording method using the ink jet ink set for an impermeable base material according to claim 1 , the method comprising:

applying the pretreatment liquid onto an impermeable base material; and

applying the ink onto the impermeable base material onto which the pretreatment liquid has been applied, using an ink jet recording method, to record an image.

10 . A method of producing a laminate, comprising:

obtaining an image recorded material that includes the impermeable base material and an image disposed on the impermeable base material by the image recording method according to claim 9 ; and

laminating a base material for lamination on a side of the image recorded material where the image has been disposed, to obtain a laminate.

11 . An image recorded material comprising:

an impermeable base material; and

an image disposed on the impermeable base material, wherein the image comprises a pretreatment layer disposed on the impermeable base material and comprising a resin, and an ink layer disposed on the pretreatment layer and comprising a pigment and a resin, an equilibrium moisture content of the pretreatment layer at 25° C. and 50% RH is 3.0% by mass or less, and an equilibrium moisture content of the ink layer at 25° C. and 50% RH is 3.0% by mass or less, and wherein the equilibrium moisture content is a moisture content measured after being stood in a constant-temperature tank at 25° C. and 50% relative humidity (RH) for 24 hours.

12 . A laminate comprising:

the image recorded material according to claim 11 ; and

a base material for lamination which is laminated on the image of the image recorded material.

Assignments (1)

Priority Claims (1)

Continuity (2)

References Cited (31)