Electrophotographic photoreceptor, electrophotographic photoreceptor cartridge, and image formation device

A technology of electrophotography and photoreceptor, which is applied in optics, electrical recording, instruments, etc., can solve the problems of large molecular size, low solubility of coating solvent, low solubility, etc., and achieve low residual potential and good adhesion Excellent, excellent wear resistance effect

Active Publication Date: 2015-04-08
MITSUBISHI RAYON CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The above-mentioned tetraphenylbenzidine skeleton tends to have a large molecular size and low solubility. When the tetraphenylbenzidine skeleton is substituted with a styryl group or the like to expand the π-electron system in the molecule, the molecular size becomes larger and relatively The solubility in the coating solvent is further reduced

Method used

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  • Electrophotographic photoreceptor, electrophotographic photoreceptor cartridge, and image formation device
  • Electrophotographic photoreceptor, electrophotographic photoreceptor cartridge, and image formation device
  • Electrophotographic photoreceptor, electrophotographic photoreceptor cartridge, and image formation device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0261]

[0262] Rutile-type titanium oxide (manufactured by Ishihara Sangyo Co., Ltd., trade name "TTO55N") with an average primary particle diameter of 40 nm and 3% by mass of methyldimethoxysilane relative to the titanium oxide were mixed with a Henschel mixer. (manufactured by Toshiba Silicone Co., Ltd., trade name "TSL8117") to obtain surface-treated titanium oxide, and the surface-treated titanium oxide obtained above was dispersed in a mixed solvent with a mass ratio of methanol / 1-propanol of 7 / 3 using a ball mill. , thereby making a dispersion slurry of surface-treated titanium oxide.

[0263] While the dispersion slurry, the mixed solvent of methanol / 1-propanol / toluene, and the mixture of ε-caprolactam [following formula (A)] / bis(4-amino-3-methylcyclohexyl)methane [following Formula (B)] / hexamethylenediamine [following formula (C)] / decamethylene dicarboxylic acid [following formula (D)] / octadecyl methylene dicarboxylic acid [following formula ( E)] the composition m...

Embodiment 2

[0280] In Example 1, a photoreceptor was prepared and evaluated in the same manner as in Example 1, except that the charge transport material was changed from the compound represented by the formula CT1 to the compound represented by the formula CT5. The results are shown in Table-1.

Embodiment 3

[0282] In Example 1, a photoreceptor was prepared and evaluated in the same manner as in Example 1, except that the charge-transporting substance was changed from the compound represented by the formula CT1 to the compound represented by the formula CT22. The results are shown in Table-1.

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PUM

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Abstract

The purpose of the present invention is to provide an electrophotographic photoreceptor that is not liable to cause filming, insufficient cleaning, abnormal noise, and the like, that has excellent abrasion resistance and excellent adhesiveness with a substrate or lower layer, that exhibits fast response in terms of electrical characteristics and sufficiently low electric potential in exposure parts, and that has excellent gas resistance and image memory characteristics. The present invention relates to an electrophotographic photoreceptor having at least a photosensitive layer on an electrocondutive support medium, wherein the electrophotographic photoreceptor contains: a charge transport substance having a specific structure in the photosensitive layer; and a specific polyester resin.

Description

technical field [0001] The present invention relates to an electrophotographic photoreceptor having excellent electrical and mechanical properties, an electrophotographic photoreceptor cartridge produced using the electrophotographic photoreceptor, and an image forming apparatus. Background technique [0002] Electrophotographic technology is widely used in copiers, printers, printing machines, and the like from the viewpoint of obtaining high-quality images in real time. Electrophotographic photoreceptors (hereinafter appropriately referred to as "photoreceptors"), which are the core of electrophotography technology, are widely used photoreceptors using organic photoconductive materials that have the advantages of being non-polluting, easy to form a film, and easy to manufacture. . [0003] In recent years, in response to the demand for higher image quality, toners have been reduced in diameter. Among chemical toners, most of them have a shape close to a spherical shape. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G03G5/06G03G5/05
CPCG03G5/0672G03G5/0614G03G5/0696G03G5/0517G03G5/06147G03G5/061473G03G5/0546G03G5/056G03G5/0618
Inventor 藤井章照和田光央长尾由香
Owner MITSUBISHI RAYON CO LTD
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