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Rotating member for pressure and production method thereof, fixing device, and image forming apparatus

A technology for rotating components and production methods, applied in the direction of electric recording technology using charge patterns, equipment and instruments for electric recording technology using charge patterns, etc., capable of solving problems such as damage, reduced strength of the surface layer, and cracks in the surface layer

Pending Publication Date: 2022-07-01
CANON KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it was found that as a result, the strength of the surface layer of the pressurized member decreases and the surface layer suffers from cracks or breakage during long-term use

Method used

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  • Rotating member for pressure and production method thereof, fixing device, and image forming apparatus
  • Rotating member for pressure and production method thereof, fixing device, and image forming apparatus
  • Rotating member for pressure and production method thereof, fixing device, and image forming apparatus

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0142] Preparation of Laminates

[0143] First, a sandblasted iron substrate with a diameter of 23 mm was prepared as the base layer. The outer periphery of the above substrate was sprayed to a dry thickness with an addition-curable liquid silicone rubber (product name: DY35-051 A&B; an equal mixture of "Liquid A" and "Liquid B", manufactured by Dow Corning Toray Co., Ltd.) 3 μm, and then baked at 150°C for 30 minutes.

[0144] Then, addition-curable liquid silicone rubber (product name: DY35-1349SC, manufactured by Dow Corning Toray Co., Ltd.) (volume resistance value 10 5 Ω·cm) of 50 parts by mass of liquid A (main agent) and 50 parts by mass of liquid B (curing agent) were cast into a forming mold with an inner diameter of 30 mm in which the above-mentioned iron base was attached to the center, and the mold was heated at a temperature of 150° C. It was heated for 1 hour to cause primary vulcanization, and then, the product was released from the mold to form an elastic lay...

Embodiment 2 to 12

[0195] Herein, except that the PFA resin and thickness of the fluororesin tube used in the surface layer, the kind of PFPE used for impregnation, and the PFPE temperature at the time of contact were changed as shown in Table 1, it was produced in the same manner as in Example 1 according to each experimental example. Rotating members 2 to 12 for pressurization.

Embodiment 13

[0197] In the method described in Example 1, the iron base on which the PFA resin (PFA-1) was laminated was subjected to an annealing treatment at 330° C. for 30 minutes to obtain a laminated body. Then, the rotary member for pressing which had undergone the impregnation step and the step of forming holes was produced in the same manner as in Example 1, thereby obtaining the rotary member for pressing 13 according to the present embodiment.

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PUM

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Abstract

The invention relates to a rotating member for pressurization and a production method thereof, a fixing device, and an image forming apparatus. A rotating member for pressurization, which includes a base layer, an elastic layer, and a surface layer in this order, the surface layer having holes, in which when an observation region having a length of 8 [mu] m * a width of 11 [mu] m is provided in a cross-section of the surface layer in a direction perpendicular to a circumferential direction of the rotating member for pressurization from a thickness direction of the surface layer, the degree of orientation (f) of the holes observed in the observation region is 0.20 or more, the orientation angle Phi of the holes observed in the observation area is 0 DEG to 10 DEG.

Description

technical field [0001] The present disclosure aims to provide a pressing rotating member and a production method thereof, a fixing apparatus, and an electrophotographic image forming apparatus. Background technique [0002] Examples of fixing devices used in electrophotographic image forming apparatuses (hereinafter, "image forming apparatuses") such as copiers or laser printers include those having a rotating member for heating and a rotating member for pressing arranged in pressure contact with the rotating member for heating. fusing equipment. In such a fixing device, the paper on which the unfixed toner image is held is introduced into a nip formed by a rotating member for heating and a rotating member for pressing, and the toner is heated and pressed, resulting in , the image becomes fixed to the paper. The pressing rotating member may be referred to as a pressing roller when it has the shape of a roller, or may be referred to as a pressing belt when it has the shape ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G03G15/20G03G21/16
CPCG03G15/2017G03G21/1685G03G15/2057G03G15/206G03G2215/2035G03G15/2053
Inventor 笠井奈绪子宫内阳平能登屋康晴大石卓司宫原康弘高桥正明马场祐介村松弘纪石藤凉
Owner CANON KK