Conductive elastomer roller and manufacturing method thereof as well as image forming device

A conductive, body roll technology, which is applied to corona discharge devices, electrical recording processes using charge patterns, and equipment using electrical recording processes using charge patterns, etc. and other problems, to achieve the effect of improved surface performance, good electrification characteristics, and uniform distribution of electricity.

Active Publication Date: 2014-05-07
NINESTAR CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although efforts have been made, there are still some defects in the developing roller, such as the developer adheres to the surface of the developing roller, it is difficult to detach or even form a film, the migration of low molecular substances in the elastic layer causes the developing roller to contaminate other components, and the lack of electrification of the surface layer leads to developing Printing defects caused by poor electrification of the agent, such as fogging phenomenon, mottled phenomenon, etc.
At the same time, during the printing process, the developer and the additives of the developer tend to adhere to the surface of the charging roller, causing the charging process to fail to proceed normally
There have been reports on the solutions to prevent the developer from adhering to the surface of the charging roller, but most of them are realized by very complicated chemical means, such as changing the molecular chain structure of the resin or containing functional groups to synthesize new resin products as the raw materials for the formation of the surface layer. lead to high production costs

Method used

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  • Conductive elastomer roller and manufacturing method thereof as well as image forming device
  • Conductive elastomer roller and manufacturing method thereof as well as image forming device
  • Conductive elastomer roller and manufacturing method thereof as well as image forming device

Examples

Experimental program
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Effect test

preparation example Construction

[0062] The preparation method of the elastic layer is generally to mix rubber with compounding agents, conductive materials, and fillers to form a conductive rubber mixture, and then vulcanize to form a conductive elastomer. The conductive elastic body is covered on the outside of the conductive shaft core 110 to form the conductive elastic layer 120 . There is no limitation on whether the obtained roller with the elastic layer is subjected to surface treatment, and it belongs to conventional technology in the art. For example, if surface treatment is carried out to described roller, can carry out grinding or other mechanical treatment to its surface, also can carry out chemical treatment to its surface, as carrying out photochemical modification or electrochemical modification, or coating adhesive layer etc. .

[0063]

[0064] The surface layer 130 is formed by coating the outer surface of the elastic layer with a coating resin solution containing two resin materials with...

Embodiment 1

[0089] With respect to the rubber and its compound used for forming the elastic layer, the "parts" described below refer to parts by mass.

[0090] Mix 100 parts of epichlorohydrin rubber (trade name: EPICHLOMER CG-102; produced by Dasao Co., Ltd., Japan) with 6.5 parts of zinc oxide, 1 part of stearic acid, and 30 parts of activated calcium carbonate (particle size: 1250 mesh; Nanjing Omiya Fine Chemicals Co., Ltd. Co., Ltd.), 8 parts of carbon black (trade name: VULCAN XC72; produced by Cabot Corporation) are mixed evenly in the mixing equipment, and then add 0.5 parts of sulfur, 2 parts of dicumyl peroxide (trade name: DCP-40C ; Produced by Sinopec Shanghai Gaoqiao Petrochemical Company) and mixed evenly to obtain an unvulcanized conductive rubber mixture.

[0091] The unvulcanized conductive rubber mixture was coated on the outside of a conductive shaft core with an outer diameter of 8 mm, and then placed in a cylindrical mold with an inner diameter of 15 mm, and the two w...

Embodiment 2

[0096] A developing roller was obtained in the same manner as in Example 1, except that an acrylic resin (trade name: TCA-837B-1; manufactured by Taichang Resin Co., Ltd.) was used as the first resin. The resulting developing roller had a surface layer thickness of 12 micrometers and a surface roughness Rz of 5-7 micrometers.

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Abstract

The invention relates to a conductive elastomer roller and a manufacturing method thereof as well as an image forming device and in particular relates to a conductive elastomer roller with an improved surface layer structure and a development device using the same. The surface layer is made from a film forming material by virtue of film forming and curing on an elastic layer, wherein the film forming material consists of a main material containing the first resin material and a non-main material containing the second resin material; the mass ratio of the main material to the non-main material is (55:45)-(95:5); polar difference exists between the first resin material and the second resin material; the first resin is selected from the resin material which can or needs to react with a curing agent to be cured; and the second resin is selected from the resin material which only can be cured by self. Serving as a development roller and a charge roller, the conductive elastomer roller can be used for not only solving the phenomenon that a developer is attached to the surface of the development roller to form a film and the defects such as flying mist, mottling and the like, but also avoiding the bad phenomenon that the developer and a development additive are stuck on the surface of the charge roller in the printing process.

Description

technical field [0001] The present invention relates to a conductive elastomer roller, a method for manufacturing the same, and an image forming apparatus, and more particularly to a conductive elastomer roller having an improved composition and properties of a surface layer, and a developing device using the conductive elastomer roller, including a developing cartridge and An image forming device belongs to the technical field of image forming. Background technique [0002] At present, various image forming devices such as copiers and laser printers are widely used in people's life and work, and have become indispensable equipment in people's life and work. The imaging principles of image forming devices such as copiers and laser printers mainly include contact development and jump development. The equipment or devices that use contact development are used more often. The image forming device using contact development includes a process box (also called a developer box), ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G03G15/02G03G15/08G03G15/00
Inventor 欧召阳林路杨正文
Owner NINESTAR CORP
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