Ink jet recording method, ink jet ink composition, and ink set

Patent metadata

Field	Value
Publication number	US-10190011-B2
Application number	US-201715488865-A
Country	US
Kind code	B2
Filing date	Apr 17, 2017
Priority date	Jul 27, 2016
Publication date	Jan 29, 2019
Grant date	Jan 29, 2019

Abstract

An ink jet recording method includes: forming a first image layer by ejecting a first ink composition that contains resin particles, an organic solvent, and water on a recording medium by an ink jet method; first drying in which 80% by mass or more of water contained in the first ink composition of the first image layer is evaporated; and forming a second image layer by ejecting a second ink composition that contains water, and an organic solvent by which the resin particles contained in the first ink composition dissolve or swell on the first image layer subjected to the first drying by the ink jet method, in which the content of an organic solvent having a normal boiling point of higher than 250° C. in the first ink composition and the second ink composition is 2% by mass or less, respectively.

First claim

What is claimed is:

1. An ink jet recording method comprising:
forming a first image layer by ejecting a first ink composition that contains resin particles, an organic solvent, and water on a recording medium by an ink jet method;
first drying in which 80% by mass or more of water contained in the first ink composition of the first image layer is evaporated; and
forming a second image layer by ejecting a second ink composition that contains water, and an organic solvent by which the resin particles contained in the first ink composition dissolve or swell on the first image layer subjected to the first drying by the ink jet method,
wherein the content of an organic solvent having a normal boiling point of higher than 250° C. in the first ink composition and the second ink composition is 2% by mass or less, respectively.

2. The ink jet recording method according to claim 1 ,
wherein each of the first ink composition and the second ink composition contains an organic solvent having a normal boiling point of 100° C. or higher and 250° C. or lower.

3. The ink jet recording method according to claim 1 ,
wherein an SP value of an organic solvent by which the resin particles contained in the first ink composition dissolve or swell is within the range of ±1 (unit: (cal/cm 3 ) 1/2 ) with respect to an SP value of the resin particles contained in the first ink composition.

4. The ink jet recording method according to claim 1 ,
wherein the recording medium is a low ink absorption or a non-ink absorption recording medium.

5. The ink jet recording method according to claim 1 ,
wherein each of the first ink composition and the second ink composition contains a coloring material.

6. The ink jet recording method according to claim 5 ,
wherein the first ink composition is a background image ink composition that contains at least one of metal compound particles and metal particles as a coloring material, and
the second ink composition is a colored ink composition that contains a non-white coloring material.

7. The ink jet recording method according to claim 1 , further comprising:
forming a third image layer by ejecting a clear ink composition that contains resin particles, an organic solvent, and water on the first image layer or the second image layer by the ink jet method after forming the second image layer.

8. The ink jet recording method according to claim 1 , further comprising:
second drying in which a volatile component on the recording medium is evaporated after forming each image layer.

9. The ink jet recording method according to claim 1 ,
wherein in the first drying, the evaporation rate of the organic solvent contained in the first ink composition of the first image layer is 50% by mass or less.

10. The ink jet recording method of claim 1 wherein a surface temperature of the recording medium of the first drying is 40° C. or less.

11. The ink jet recording method of claim 1 wherein the evaporation rate of the organic solvent contained in the first ink composition of the first image layer is 5% by mass or less.

12. The ink jet recording method of claim 1 wherein the evaporation rate of the organic solvent contained in the first ink composition of the first image layer is 3% by mass or less.

Assignees

• Seiko Epson Corp

Inventors

• Ohta Hitoshi

Classifications

• B41M7/009

  using thermal means, e.g. infrared radiation, heat · CPC title

• C09D11/102

  containing macromolecular compounds obtained by reactions other than those only involving unsaturated carbon-to-carbon bonds · CPC title

• C09D11/107

  from unsaturated acids or derivatives thereof · CPC title

• C09D11/32

  characterised by colouring agents · CPC title

• C09D11/104

  Polyesters · CPC title