Image recording method by serially transferring intermediate images

Patent metadata

Field	Value
Publication number	US-9067449-B2
Application number	US-201414296930-A
Country	US
Kind code	B2
Filing date	Jun 5, 2014
Priority date	Jun 13, 2013
Publication date	Jun 30, 2015
Grant date	Jun 30, 2015

Abstract

Provided is an image recording method, including an intermediate image formation step of forming an intermediate image by applying ink onto a first intermediate transfer member; a first transfer step of transferring, onto a second intermediate transfer member, the intermediate image that is formed on the first intermediate transfer member; and a second transfer step of transferring, onto a recording medium, the intermediate image that is transferred onto the second intermediate transfer member, in which the following relationship is satisfied: Fa<Fb<Fc, where Fa represents an adhesion force between the first intermediate transfer member and the intermediate image, Fb represents an adhesion force between the second intermediate transfer member and the intermediate image, and Fc represents an adhesion force between the recording medium and the intermediate image.

First claim

What is claimed is:

1. An image recording method, comprising:
an intermediate image formation step of forming an intermediate image by applying ink onto a first intermediate transfer member;
a first transfer step of transferring, onto a second intermediate transfer member, the intermediate image that is formed on the first intermediate transfer member; and
a second transfer step of transferring, onto a recording medium, the intermediate image that is transferred onto the second intermediate transfer member,
wherein the following relationship is satisfied:
9 Fa/ 4<3 Fb/ 2 <Fc

in which Fa represents an adhesion force between the first intermediate transfer member and the intermediate image, Fb represents an adhesion force between the second intermediate transfer member and the intermediate image, and Fc represents an adhesion force between the recording medium and the intermediate image.

2. An image recording method according to claim 1 , wherein the adhesion force Fa between the first intermediate transfer member and the intermediate image is 0.5 kg/cm 2 or more and 3.0 kg/cm 2 or less.

3. An image recording method according to claim 1 , wherein the adhesion force Fb between the second intermediate transfer member and the intermediate image is 1.0 kg/cm 2 or more and 5.0 kg/cm 2 or less.

4. An image recording method according to claim 1 , wherein a surface hardness of the first intermediate transfer member is larger than a surface hardness of the second intermediate transfer member, and
a surface hardness of the recording medium is larger than the surface hardness of the second intermediate transfer member.

5. An image recording method according to claim 1 , wherein a pressure to be applied in the first transfer step at the time of transferring the intermediate image from the first intermediate transfer member onto the second intermediate transfer member is smaller than a pressure to be applied in the second transfer step at the time of transferring the intermediate image from the second intermediate transfer member onto the recording medium.

6. An image recording method according to claim 1 , wherein the following relationship is satisfied:
Ra 1 >Ra 2 >Ra m ,
in which Ra 1 represents an arithmetic mean roughness of a surface of the first intermediate transfer member, Ra 2 represents an arithmetic mean roughness of a surface of the second intermediate transfer member, and Ra m represents an arithmetic mean roughness of a surface of the recording medium.

7. An image recording method according to claim 1 , wherein the first intermediate transfer member comprises a support member and a surface layer, and
the surface layer contains a silicone rubber.

Assignees

• Canon Kk

Inventors

• Morita Akira
• Nomura Sayaka
• Toyama Noboru

Classifications

• B41M5/035 Primary

  by sublimation or volatilisation of {pre-printed} design {, e.g. sublistatic (B41M5/0256 takes precedence; printing on textiles D06P5/00)} · CPC title

• B41J2/0057

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