Ink jet recording process, ink jet recording apparatus, and recorded matter

Patent metadata

Field	Value
Publication number	US-9566814-B2
Application number	US-201414173212-A
Country	US
Kind code	B2
Filing date	Feb 5, 2014
Priority date	Feb 5, 2013
Publication date	Feb 14, 2017
Grant date	Feb 14, 2017

Abstract

An ink jet recording process using a glitter pigment provides satisfactory glitter even on a recording medium having a rough surface. The ink jet recording process includes a glitter image-forming step of forming a glitter image by discharging a glitter ink composition containing a glitter pigment to a recording medium and a pressing step of pressing the layer of the glitter image formed on the recording medium.

First claim

What is claimed is:

1. An ink jet recording process comprising the steps of:
forming a base layer for a glitter image by applying a base ink composition containing base particles to a recording medium;
forming the glitter image by discharging a glitter ink composition containing a glitter pigment to the recording medium;
pressing the recording medium; and
forming a color image by applying a color ink composition containing a coloring material onto at least part of the glitter image, after the step of pressing;
wherein
in the step of forming the base layer, the base ink composition containing solvent component being applied to the recording medium, the solvent component composing water and/or an organic solvent;
in the step of forming the glitter image, when the glitter ink is discharged, the residual rate of the solvent component in the base ink composition is 10% by mass or more and 80% by mass or less; and
in the step of pressing the recording medium, the base layer has a fluidity during the pressing such that the glitter of a resulting recorded matter is provided with sufficient glitter.

2. The ink jet recording process according to claim 1 , wherein
the glitter ink composition has a surface tension of 30 mN/m or less.

3. The ink jet recording process according to claim 1 , wherein
the glitter ink composition has a surface tension lower than that of the base ink composition.

4. The ink jet recording process according to claim 1 , wherein
the process further comprising a step of:
applying, before the step of forming the base layer, a pretreatment solution containing a coagulant capable of agglomerating the base particles contained in the base ink composition or the glitter pigment particles to the recording medium.

5. The ink jet recording process according to claim 1 , after the step of pressing the recording medium, further comprising a step of:
forming a protective layer by applying a protective ink composition substantially not containing a coloring material onto at least part of the glitter image.

6. The ink jet recording process according to claim 1 , wherein the recording medium is fabric.

7. The ink jet recording process according to claim 1 , wherein
the step of pressing is performed by pressing the recording medium provided with the glitter image under heating at a temperature of 40° C. or more and 250° C. or less.

8. The ink jet recording process according to claim 1 , wherein the glitter image after the step of pressing has an arithmetic mean roughness (Ra2) of 10 μm or less.

9. A recorded matter prepared by the ink jet recording process according to claim 1 .

10. An ink jet recording apparatus performing the ink jet recording process according to claim 1 .

11. The ink jet recording process according to claim 1 , wherein the glitter pigment is in a form of plate-like particles having a 50% mean particle diameter R50 of 0.25 μm or more and 5.0 μm or less based on the equivalent circle diameters determined from the X-Y plane areas of the plate-like particles.

12. The ink jet recording process according to claim 1 , before the step of forming the base layer, further comprising a step of:
preparing the recording medium which contains a coagulant capable of agglomerating the base particles contained in the base ink composition or the glitter pigment particles.

13. An ink jet recording process comprising the steps of:
forming a base layer for a glitter image by applying a base ink composition containing base particles to a recording medium;
forming the glitter image by discharging a glitter ink composition containing a glitter pigment to the recording medium;
pressing the recording medium; and
wherein
in the step of forming the base layer, the base ink composition containing solvent component being applied to the recording medium, the solvent component composing water and/or an organic solvent,
in the step of forming the glitter image, when the glitter ink is discharged, the residual rate of the solvent component in the base ink composition in 10% by mass or more and 80% by mass or less;
in the step of pressing the recording medium, the base layer has a fluidity during the pressing such that the glitter of a resulting recorded matter is provided with sufficient glitter; and
the difference between an arithmetic mean roughness (Ra1) of a glitter image before the pressing step and an arithmetic mean roughness (Ra2) after the pressing step is 3 μm or more, and the arithmetic mean roughness (Ra2) after the pressing step is 10 μm or less.

14. The ink jet recording process according to claim 1 , wherein
the glitter ink composition has a surface tension of 30 mN/m or less.

15. The ink jet recording process according to claim 13 , wherein
the glitter ink composition has a surface tension lower than that of the base ink composition.

16. The ink jet recording process according to claim 13 , wherein
the process further comprising a step of:
applying, before the step of forming the base layer, a pretreatment solution containing a coagulant capable of agglomerating the base particles contained in the base ink composition or the glitter pigment particles to the recording medium.

17. The ink jet recording process according to claim 13 , after the step of pressing the recording medium, further comprising a step of:
forming a protective layer by applying a protective ink composition substantially not containing a coloring material onto at least part of the glitter image.

18. The ink jet recording process according to claim 13 , wherein the recording medium is fabric.

19. The ink jet recording process according to claim 13 , wherein
the step of pressing is performed by pressing the recording medium provided with the glitter image under heating at a temperature of 40° C. or more and 250° C. or less.

20. The ink jet recording process according to claim 13 , wherein the glitter image after the step of pressing has an arithmetic mean roughness (Ra2) of 10 μm or less.

21. The ink jet recording process according to claim 13 , wherein the glitter pigment is in a form of plate-like particles having a 50% mean particle diameter R50 of 0.25 μm or more and 5.0 μm or less based on the equivalent circle diameters determined from the X-Y plane areas of the plate-like particles.

22. The ink jet recording process according to claim 13 , before the step of forming the base layer, further comprising a step of:
preparing the recording medium which contains a coagulant capable of agglomerating the base particles contained in the base ink composition or the glitter pigment particles.

23. The ink jet recording process according to claim 13 , after the step of pressing the recording medium further comprising the steps of:
forming a color image by applying a color ink composition containing a coloring material onto at least part of the glitter image, after the step of forming the glitter image and the step of pressing.

Assignees

• Seiko Epson Corp

Inventors

• Koike Naoki
• Denda Atsushi

Classifications

• B41J2/2117

  Ejecting white liquids · CPC title

• B41J2/2114

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

• B41M5/0023

  Digital printing methods characterised by the inks used (inks per se C09D11/00) · CPC title

• B41M2205/40

  Cover layers; Layers separated from substrate by imaging layer; Protective layers; Layers applied before imaging · CPC title

• B41M7/009

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