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Conductive elastomer roller, manufacturing method and image forming apparatus thereof

A conductive metal, body roll technology, applied in corona discharge devices, electrical recording processes using charge patterns, equipment using electrical recording processes using charge patterns, etc. Effectively prevent metal shaft core corrosion, metal shaft core corrosion and other problems, to achieve the effect of improving image quality, preventing corrosion and prolonging service life

Active Publication Date: 2016-11-30
NINESTAR CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] 5) The elastic layer is made of foamed elastomer material, but it only achieves physical protection. After the product is stored for a period of time, the metal shaft core still appears corrosion
[0012] To sum up, the reason why the metal shaft core cannot be effectively prevented from being corroded is that the outside of the metal shaft core in the conductive elastomer roller has poor chemical barrier to low molecular substances , cannot effectively prevent the corrosion of the metal shaft core due to the migration of low-molecular substances

Method used

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  • Conductive elastomer roller, manufacturing method and image forming apparatus thereof
  • Conductive elastomer roller, manufacturing method and image forming apparatus thereof
  • Conductive elastomer roller, manufacturing method and image forming apparatus thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0068] Pretreatment of conductive metal mandrels:

[0069] The outer surface of a conductive metal mandrel (SUM22) with an outer diameter of 6 mm was degreased with dehydrated ethyl acetate.

[0070] Formation of chemical barrier layer:

[0071] 100 parts by mass of chlorosulfonated polyethylene resin (trade name: CSM40; produced by Jilin Chemical Industry Co., Ltd.), 6 parts by mass of modified montmorillonite (trade name: DK4; produced by Zhejiang Fenghong New Material Co., Ltd. ) and 5 parts by mass of conductive carbon black (trade name: VULCANXC72; produced by Cabot Corporation), added to the organic solvent xylene, dispersed evenly with a disperser, and made into a coating resin solution. The coating resin solution is repeatedly coated on the outer surface of the conductive metal shaft core by a spraying machine, and then placed in a baking oven and baked at 80°C for 30 minutes to evaporate the solvent. After taking it out and cooling, the coating material is conduc...

Embodiment 2

[0078] Except that ethylene-vinyl alcohol copolymer resin (trade name: F171; produced by Japan Kuraray Co., Ltd.) is used to replace chlorosulfonated polyethylene resin as the main material of the chemical barrier layer, and n-butanol is used instead of xylene as the solvent, the rest are in accordance with the same regulations. The charging roller was obtained by the same method as in Example 1, and the thickness of the chemical barrier layer was 15 microns.

Embodiment 3

[0080] First, a chemical barrier layer with chlorosulfonated polyethylene resin as the main material is set on the surface of the pretreated conductive metal shaft core. The setting method is the same as in Example 1, and the thickness of the chemical barrier layer obtained is 15 microns; A chemical barrier layer with ethylene-vinyl alcohol copolymer resin as the main material is arranged outside the chemical barrier layer. The setting method is the same as in Example 2, and the thickness is controlled to be 10 microns; the setting method of the elastic layer and the surface layer is the same as in Example 1.

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Abstract

The invention provides a conductive elastic body roller, which has a conductive metal shaft core, and a chemical barrier layer, an elastic layer and a surface layer arranged sequentially outside the conductive metal shaft core, the chemical barrier layer is produced in the barrier elastic layer or At least one layer of coating of low-molecular substances that migrates or oozes through the elastic layer is formed by forming and curing a film-forming material that includes at least a host material and a conductive agent on the outer surface of the conductive metal shaft core. The present invention also provides a method of manufacturing the conductive elastomer roller. The conductive elastomer roller is used as a developing roller and a charging roller, which can effectively prevent the corrosion of the conductive metal shaft core, improve the characteristics of the conductive elastomer roller, and prolong its service life. It can also be used as a transfer roller for image forming devices, improving image quality.

Description

technical field [0001] The present invention relates to a conductive elastomer roller, a manufacturing method and an image forming device thereof, in particular to a conductive elastomer roller with a chemical barrier layer and a developing device utilizing the conductive elastomer roller, including a developing cartridge and an image forming device, It belongs to the technical field of image formation. 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 equipment 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), which includes a powder bin, a powder fee...

Claims

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Application Information

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