Cleaning blade for image-forming apparatus

A technology for cleaning scrapers and images, applied in the fields of electric recording technology using charge patterns, equipment for electric recording technology using charge patterns, and electrography, etc., which can solve the problems of rising production costs, insufficient durability and wear resistance , Insufficient bonding of polyurethane rubber, etc., to achieve the effects of simple production, shortened sliding distance, and excellent cleaning performance

Inactive Publication Date: 2011-01-05
SUMITOMO RUBBER IND LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] However, FDLC adheres only to the edge, and since FDLC is not sufficiently bonded to urethane rubber, it cannot follow the deformation of the edge, and FDLC may be peeled off, so the durability and abrasion resistance are not yet sufficient from a practical point of view.
Furthermore, in order to form the FDLC layer on the substrate elastomer, it is necessary to perform plasma chemical vapor deposition, so there is a problem that the management of the production process becomes complicated and the production cost increases
[0011] In the case of a multilayer structure, the production cost also rises, and there is a problem that it is difficult in actual mass production

Method used

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  • Cleaning blade for image-forming apparatus
  • Cleaning blade for image-forming apparatus
  • Cleaning blade for image-forming apparatus

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1～9

[0147] (Examples 1-9, Comparative Examples 1-7)

[0148] Measure the rubber component, thermoplastic fluororesin powder PTFE resin powder or ETFE resin powder, and filler according to the mixing amount shown in the table below, and put them into rubber such as twin-screw extruder, open mill, Banbury mixer or kneader. In the kneading device, heat and knead at 80°C to 120°C for 5 to 6 minutes.

[0149] Put the obtained mixture and the cross-linking agent in the mixing amount shown in the following table into a rubber mixing device such as an open mill, a Banbury mixer or a kneader, and heat and knead at 80°C to 90°C for 5- 6 minutes or so.

[0150] The obtained thermoplastic elastomer was placed in a metal mold, and press-vulcanized at 155° C. to 175° C. for about 10 minutes to 30 minutes to manufacture a sheet with a thickness of 2 mm.

[0151] Further, a cleaning blade having a width of 20 mm and a length of 320 mm was cut out from a sheet having a thickness of 2 mm. This c...

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PUM

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Abstract

A cleaning blade for image-forming apparatuses is provided which is reduced in the coefficient of friction to attain a shortened slipping distance and thereby produce excellent cleaning performance. The cleaning blade can be easily produced at low cost. The cleaning blade for image-forming apparatuses is formed from a thermoplastic elastomer comprising: a rubber ingredient comprising any one of a hydrogenated acrylonitrile-butadiene rubber (HNBR), carboxylated acrylonitrile-butadiene rubber (XNBR), hydrogenated carboxylated acrylonitrile-butadiene rubber (HXNBR), styrene-butadiene rubber (SBR), and ethylene / propylene / diene copolymer rubber (EPDM); and a thermoplastic fluororesin powder incorporated as the only resin powder in the rubber ingredient. The thermoplastic fluororesin powder has been incorporated in an amount of 1-80 parts by mass per 100 parts by mass of the rubber ingredient. The thermoplastic fluororesin powder has an average particle diameter of 0.1-20 [mu]m.

Description

technical field [0001] The present invention relates to a cleaning blade for an image forming apparatus, and in detail, refers to a molded body composed of a thermoplastic elastomer mixed with resin powder in a rubber component. Background technique [0002] Generally, an electrostatic photocopier is to give an electrostatic charge to the surface of a photoreceptor through discharge, expose an image on it, and form an electrostatic latent image, and then attach a reverse-polarized toner to the electrostatic latent image for development. The image is transferred to the recording paper, and finally the recording paper on which the toner image has been transferred is heated and pressed to fix the toner on the recording paper. Therefore, in order to sequentially copy several sheets of recording paper, it is necessary to remove the toner remaining on the surface of the photoreceptor after transferring the toner image from the photoreceptor to the recording paper in the above proc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G03G21/10
CPCG03G21/0017G03G2215/0177
Inventor 杉本睦树
Owner SUMITOMO RUBBER IND LTD
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