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Intermediate transfer belt and image forming apparatus

An intermediate transfer belt and image technology, which is applied to the electrical recording process using the charge pattern, equipment and instruments for the electric recording process using the charge pattern, and can solve the problem of reduced strength, insufficient improvement in durability, and changes in resistance, etc. problem, achieving excellent durability

Inactive Publication Date: 2019-12-13
KONICA MINOLTA INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, since polyamideimide has lower mechanical strength and withstand voltage than polyimide, there are problems of resistance change and strength reduction due to repeated use, and there is a risk of breaking
[0007] However, even if these intermediate transfer belts are used, the improvement in durability is not sufficient, and an intermediate transfer belt using polyamide-imide with less resistance change and lower strength even after repeated use is desired.

Method used

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  • Intermediate transfer belt and image forming apparatus
  • Intermediate transfer belt and image forming apparatus
  • Intermediate transfer belt and image forming apparatus

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Embodiment

[0191] Hereinafter, the present invention will be specifically described with reference to examples, by which the present invention is not limited. It should be noted that, in the examples, unless otherwise specified, the expression "part" or "%" is used to represent "part by weight" or "% by weight".

[0192] >

[0193] [Manufacture of intermediate transfer belt 1]

[0194]

[0195] A specified amount of the dispersant 1 having a block polymer structure of the present invention (TERPLUS D2015 manufactured by Otsuka Chemical Co., Ltd.) was dissolved in N-methylpyrrolidone (NMP), and acidic CB (acidic carbon black: Mitsubishicarbon black MA7 (manufactured by Mitsubishi Chemical Corporation) was stirred, and then carbon black was dispersed by a ball mill to prepare a carbon black dispersion containing 8 parts by mass of dispersant 1 per 100 parts by mass of carbon black.

[0196]

[0197] Solutions were prepared such that polyamideimide varnish HR-11NN (manufactured by Toy...

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Abstract

The purpose of the present invention is to provide an intermediate transfer belt which uses a polyamideimide and has excellent durability. Another object of the present invention is to provide an image forming apparatus including the intermediate transfer belt. The intermediate transfer belt according to the present invention is used in an electrophotographic image forming apparatus, in which theintermediate transfer belt contains a polyamideimide, a conductive agent, and a dispersant, and the dispersant has a block polymer structure.

Description

technical field [0001] The present invention relates to an intermediate transfer belt and an image forming apparatus, and more specifically, the present invention relates to an intermediate transfer belt having excellent durability and an image forming apparatus including the intermediate transfer belt. Background technique [0002] Conventionally, as an electrophotographic image forming apparatus using an intermediate transfer belt, a toner image formed on a photoreceptor is primarily transferred to the intermediate transfer belt, and the toner image on the intermediate transfer belt is transferred to the intermediate transfer belt. The image is secondarily transferred to a transfer material such as transfer paper (recording paper). That is, the toner image formed on the photoreceptor and charged with a specified polarity is transferred to the intermediate transfer belt by electrostatic force, and then the toner image on the intermediate transfer belt is transferred to the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G03G15/16
CPCG03G15/162
Inventor 吉田英一滨口进一小贺伊都津川刊大平晃
Owner KONICA MINOLTA INC
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