Ink jet recording apparatus and ink jet recording method

Patent metadata

Field	Value
Publication number	US-2019009578-A1
Application number	US-201816021478-A
Country	US
Kind code	A1
Filing date	Jun 28, 2018
Priority date	Jul 4, 2017
Publication date	Jan 10, 2019
Grant date	—

Abstract

An ink jet recording apparatus includes: an image forming unit for forming an ink image containing a liquid component and a coloring material on a moving ink receiving medium; and a liquid absorbing unit having a liquid absorbing member which absorbs at least a part of the liquid component from the ink image by coming into contact with the ink image on the ink receiving medium, in which, in a moving direction of the ink receiving medium, a curvature radius R1 of the ink receiving medium at a contact start position between the liquid absorbing member and the ink image and a curvature radius R2 of the liquid absorbing member at the contact start position satisfy a relationship in which R1>0, R2<0, and |R1|≤|R2|.

First claim

What is claimed is:

1 . An ink jet recording apparatus comprising:
an image forming unit for forming an ink image containing a liquid component and a coloring material on a moving ink receiving medium; and a liquid absorbing unit having a liquid absorbing member which absorbs at least a part of the liquid component from the ink image by coming into contact with the ink image on the ink receiving medium, wherein, in a moving direction of the ink receiving medium, a curvature radius R 1 of the ink receiving medium at a contact start position between the liquid absorbing member and the ink image and a curvature radius R 2 of the liquid absorbing member at the contact start position satisfy a relationship in which R 1 >0, R 2 <0, and |R 1 |≤|R 2 |.

2 . An ink jet recording apparatus comprising:
an image forming unit for forming an ink image containing a liquid component and a coloring material on a moving ink receiving medium; and a liquid absorbing unit having a liquid absorbing member which absorbs at least a part of the liquid component from the ink image by coming into contact with the ink image on the ink receiving medium, wherein, in a moving direction of the ink receiving medium, a curvature radius R 1 of the ink receiving medium at a contact start position between the liquid absorbing member and the ink image and a curvature radius R 2 of the liquid absorbing member at the contact start position satisfy a relationship in which R 1 <0, R 2 >0, and |R 1 |≥|R 2 |.

3 . The ink jet recording apparatus according to claim 1 ,
wherein |R 1 |/|R 2 | is 0.8 or more.

4 . The ink jet recording apparatus according to claim 2 ,
wherein |R 2 |/|R 1 | is 0.8 or more.

5 . The ink jet recording apparatus according to claim 1 ,
wherein the liquid absorbing member is an endless liquid absorbing sheet, and the ink jet recording apparatus further comprises a liquid absorbing pressing member for pressing the liquid absorbing member against the ink image on the ink receiving medium.

6 . The ink jet recording apparatus according to claim 1 ,
wherein the ink receiving medium is a transfer body, and the ink jet recording apparatus further comprises a transfer pressing member for transferring an ink image, in which at least a part of the liquid component is removed by the liquid absorbing member, onto a recording medium.

7 . The ink jet recording apparatus according to claim 1 ,
wherein the ink receiving medium is a recording medium.

8 . An ink jet recording method comprising:
an image forming step of forming an ink image containing a liquid component and a coloring material on a moving ink receiving medium; and a liquid absorbing step of absorbing at least a part of the liquid component from the ink image by bringing the liquid absorbing member into contact with the ink image on the ink receiving medium, wherein, in a moving direction of the ink receiving medium, a curvature radius R 1 of the ink receiving medium at a contact start position between the liquid absorbing member and the ink image and a curvature radius R 2 of the liquid absorbing member at the contact start position satisfy a relationship in which R 1 >0, R 2 <0, and |R 1 |≤|R 2 |.

9 . An ink jet recording method comprising:
an image forming step of forming an ink image containing a liquid component and a coloring material on a moving ink receiving medium; and a liquid absorbing step of absorbing at least a part of the liquid component from the ink image by bringing the liquid absorbing member into contact with the ink image on the ink receiving medium, wherein, in a moving direction of the ink receiving medium, a curvature radius R 1 of the ink receiving medium at a contact start position between the liquid absorbing member and the ink image and a curvature radius R 2 of the liquid absorbing member at the contact start position satisfy a relationship in which R 1 <0, R 2 >0, and |R 1 |≥|R 2 |.

10 . The ink jet recording method according to claim 8 ,
wherein |R 1 |/|R 2 | is 0.8 or more.

11 . The ink jet recording method according to claim 9 ,
wherein |R 2 |/|R 1 | is 0.8 or more.

12 . The ink jet recording method according to claim 8 ,
wherein the liquid absorbing member is an endless liquid absorbing sheet, and the ink jet recording apparatus further comprises a liquid absorbing pressing member for pressing the liquid absorbing member against the ink image on the ink receiving medium.

13 . The ink jet recording method according to claim 8 ,
wherein the ink receiving medium is a transfer body, and the ink jet recording apparatus further comprises a transfer pressing member for transferring an ink image, in which at least a part of the liquid component is removed by the liquid absorbing member, onto a recording medium.

14 . The ink jet recording method according to claim 8 ,
wherein the ink receiving medium is a recording medium.

Assignees

• Canon Kk

Inventors

• Takeuchi Keiichirou
• Inoue Koji
• Mouri Akihiro
• Ohnishi Toru

Classifications

• B41J29/17

  Cleaning arrangements · CPC title

• B41J2002/012

  with intermediate transfer member · CPC title

• B41J2/0057

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

• B41J2/01 Primary

  Ink jet · CPC title

• B41J11/007 Primary

  Conveyor belts or like feeding devices · CPC title