Transfer body, image recording method and image recording apparatus

Patent metadata

Field	Value
Publication number	US-11241877-B2
Application number	US-202016736050-A
Country	US
Kind code	B2
Filing date	Jan 7, 2020
Priority date	Jul 14, 2017
Publication date	Feb 8, 2022
Grant date	Feb 8, 2022

Abstract

A porous layer included in a transfer body for image recording by a heat transfer method has a multiple layer configuration, and porous layers are provided such that when a thickness (mm) of each porous layer from a porous layer P(1) of the plurality of porous layers on a side closest to the surface layer to a porous layer P(n) on a side closest to the substrate is set to t(n) (n≥2), and a total thickness of the transfer body is set to T (mm), Expression (1): C×T≤t(1)+ . . . +t(n) (here, C=0.4, and T≥1) is satisfied.

First claim

What is claimed is:

1. A transfer body for image formation by a heat transfer method, the transfer body comprising:
a substrate;
a plurality of porous layers provided on the substrate; and
a surface layer having an image forming surface,
wherein when a thickness (mm) of each porous layer from a porous layer P(1) of the plurality of porous layers on a side closest to the surface layer to a porous layer P(n) on a side closest to the substrate is set to t(n) (n≥3), and a total thickness of the transfer body is set to T (mm), Expression (1) is satisfied:
C×T≤t (1)+ . . . + t ( n )  (1),

wherein C=0.4, T≥1, and n is an integer of 10 or less, and
wherein the thickness of each porous layer is such that Expression (2) is satisfied:
0.8≤ t (1)+ . . . + t ( n )≤1.5, and  Expression (2)

wherein when a compression modulus of elasticity (MPa) of each porous layer from the porous layer P(1) on the side closest to the surface layer to the porous layer P(n) on the side closest to the substrate is set to E(n), Expression (3) is satisfied:
E (1)< E (2 to n ).  Expression (3)

2. The transfer body according to claim 1 , wherein the C is 0.5.

3. The transfer body according to claim 1 , wherein the compression modulus of elasticity (MPa) of each porous layer of the transfer body is 0.1≤E1<E(2 to n)≤30.

4. The transfer body according to claim 1 , wherein, when a stress when a compression amount is “a” (mm) is set to X (MPa), and a stress when a compression amount is a+0.2 (mm) is set to Y (MPa), the X satisfies Expression (4), and the Y satisfies Expression (5):
0.1≤ X≤ 0.5  Expression (4)

0.5≤ Y≤ 1.5  Expression (5),

wherein 0.1 (mm)≤a≤0.2 (mm).

5. The transfer body according to claim 1 , wherein, when a stress when a compression amount is “a” (mm) is set to X (MPa), and a stress when a compression amount is a+0.3 (mm) is set to Z (MPa), the X satisfies Expression (4), and the Z satisfies Expression (6):
0.1≤ X≤ 0.5  Expression (4)

0.5≤ Z≤ 2.0,  Expression (6)

wherein 0.1≤a≤0.2.

6. The transfer body according to claim 1 , wherein each of the porous layers of the transfer body independently includes at least one of silicone rubber, fluororubber and ethylene-propylene-diene rubber.

7. The transfer body according to claim 1 , wherein the surface layer contains a condensate of an organosilicon compound.

8. The transfer body according to claim 1 , which is suitable for use as a transfer body in an image forming method, including: an intermediate image forming step of applying ink to the image forming surface of the transfer body to form an intermediate image; a transfer step of transferring the intermediate image to a recording medium; and a heating step of heating the intermediate image on the transfer body.

9. The transfer body according to claim 8 , wherein the applying of the ink to the image forming surface is performed by an ink jet method.

10. An image recording method, comprising:
an image forming step of applying ink to an image forming surface of a transfer body to form an intermediate image;
a transfer step of transferring the intermediate image to a recording medium; and
a heating step of heating the intermediate image on the transfer body,
wherein the transfer body is the transfer body according to claim 1 .

11. The image recording method according to claim 10 , wherein the image forming step includes a reaction solution applying step of applying a reaction solution to the image forming surface.

12. The image recording method according to claim 10 , the applying of the ink to the image forming surface is performed by an ink jet method.

13. The transfer body according to claim 1 , wherein the substrate contains woven fabric.

Assignees

• Canon Kk

Inventors

• Noguchi Mitsutoshi
• Saito Yoshikazu
• Kosuge Tetsuya
• Kushida Midori
• Sano Tsukasa

Classifications

• B32B25/08

  of synthetic resin · CPC title

• B32B27/08

  of synthetic resin · CPC title

• B32B2307/732

  Dimensional properties · CPC title

• B32B2250/05

  5 or more layers · CPC title

• B41J2/0057 Primary

  where an intermediate transfer member receives the ink before transferring it on the printing material · CPC title