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Image forming method, image formng apparatus, intermediate transfer body, method of modifying surface of intermediate transfer body

A technology of an intermediate transfer body and an imaging method, applied in imaging equipment, to modify the surface of the intermediate transfer body, in the field of imaging, and can solve the problems of limited ink composition, unsatisfactory, and time-consuming

Inactive Publication Date: 2006-07-26
CANON KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This fusing process takes time and has certain restrictions on ink composition, which is not satisfactory in many places

Method used

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  • Image forming method, image formng apparatus, intermediate transfer body, method of modifying surface of intermediate transfer body
  • Image forming method, image formng apparatus, intermediate transfer body, method of modifying surface of intermediate transfer body
  • Image forming method, image formng apparatus, intermediate transfer body, method of modifying surface of intermediate transfer body

Examples

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no. 1 example

[0085] 1. Overview of Imaging Device

[0086] FIG. 1 is a schematic diagram showing a rough configuration of an image forming apparatus according to an embodiment of the present invention. In FIG. 1 , reference numeral 1 designates an intermediate transfer body driven to rotate about an axis 1A in the direction of arrow F and having a surface layer 2 having good releasability. In FIG. 1 , reference numeral 3 denotes an energy application device for performing surface modification treatment on the surface layer 2 . In the apparatus shown in FIG. 1, the coating means 4, 5 are placed in contact with the surface of the intermediate transfer body 1 between the energy applying means 3 and the inkjet printing unit 6, so as to apply the wettability modifying component and An ink viscosity increasing composition is applied to the surface. Although it is not necessary to provide a coating device 4 for coating a wettability modifying component such as a surfactant, and a coating device...

Embodiment 1

[0154] (a) Surface modification of the transfer body

[0155] As the intermediate transfer body, this example was formed using silicone rubber (KE12 manufactured by Shinetsu Kagaku) ​​having a hardness of 40 degrees on an aluminum roller coated to a thickness of 0.2 mm. First, the surface of the intermediate transfer body was modified by using an atmospheric pressure plasma processor 3 (ST-7000 manufactured by Keyence) under the following conditions.

[0156] Radiation distance: 5mm

[0157] Plasma Mode: High

[0158] Processing rate: 100mm / sec

[0159] (b) Application of an ink viscosity increasing component

[0160] Next, the surface-modified intermediate transfer body is coated with an ink viscosity increasing component by using a roll coater. As an ink viscosity increasing component, a 10% by mass aqueous solution of aluminum chloride hexahydrate was used.

[0161] (c) Formation of image on intermediate transfer body

[0162] Next, an inkjet printing unit (nozzle den...

Embodiment 2

[0172] (a) Surface modification of the transfer body

[0173] As an intermediate transfer body, this example was formed using silicone rubber (KE30 manufactured by Shinetsu Kagaku) ​​having a hardness of 60 degrees on an aluminum roller coated to a thickness of 0.2 mm. First, the surface of the intermediate transfer body was modified by using an atmospheric pressure plasma processor (Plasma Atom Handy manufactured by Nippon Paint) under the following conditions.

[0174] Radiation distance: contact

[0175] Plasma Mode: Standard

[0176] Processing rate: 10mm / sec

[0177] (b) Application of an ink viscosity increasing component

[0178] Next, 0.5% of a fluorinated surfactant (Surflon S-141 manufactured by Seimi Chemical) was added to a 10% by mass aqueous solution of calcium chloride dihydrate, and this solution was applied to the surface to be modified using a roller coater. on the surface of the intermediate transfer body.

[0179] (c) Formation of image on intermediate...

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Abstract

The invention allows an image printing on a wide range of print media regardless of how much ink the print media absorb, without sacrificing a high printing flexibility of an ink jet printing system. To this end, the image forming method of this invention includes: a process of modifiying a surface of an intermediate transfer body by applying energy to the surface; a process of ejecting ink onto the surface-modified intermediate transfer body by using an ink jet printing device; and a process of transferring ink from the intermediate transfer body to a print medium. With this invention, therefore, an ink image can be formed on the intermediate transfer body having a surface layer, without causing bleeding or beading, and then transferred onto the print medium in good condition.

Description

technical field [0001] The present invention relates to an image forming method and an image forming apparatus both using an inkjet printing system, an intermediate transfer body used in the image forming method, and a method of modifying the surface of the intermediate transfer body. More specifically, the present invention relates to: an image forming method and an image forming apparatus both of which use an intermediate transfer body when forming an image on a printing medium so that the image is unlikely to be affected by the amount of ink absorbed in the printing medium; An intermediate transfer body used in the image forming method; and a method of modifying the surface of the intermediate transfer body. Background technique [0002] The dominant imaging method using paper as a printing medium is currently offset printing. Offset printing is a technique suitable for mass printing. That is, the printing plate for the image is constructed and positioned in the printin...

Claims

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Application Information

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IPC IPC(8): B41J2/005B41J2/01B41M5/00B41M5/50B41M5/52
CPCB41M5/0256B41M1/06
Inventor 谷内洋毛利明广
Owner CANON KK
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