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Fixing member, fixing device, and electrophotographic image forming apparatus

A technology of components and molecules, applied in the field of components for electrophotography, to achieve the effect of excellent mutual adhesion and excellent durability

Active Publication Date: 2018-08-03
CANON KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the present inventors have realized that the adhesive strength between the elastic layer containing silicone rubber in the fixing member and the surface layer containing fluororesin formed on the surface thereof leaves room for further improvement

Method used

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  • Fixing member, fixing device, and electrophotographic image forming apparatus
  • Fixing member, fixing device, and electrophotographic image forming apparatus
  • Fixing member, fixing device, and electrophotographic image forming apparatus

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0134] (5-1) Step of forming elastic layer of fixing film

[0135] As the base material 2A having a ring shape, a metal belt made of stainless steel having dimensions of 240 mm in length, 40 μm in thickness, and 30 mm in outer diameter was prepared.

[0136]A rubber-based primer (trade name: X-33-174A, X-33-174B; manufactured by Shin-Etsu Chemical Co., Ltd.) was applied to the outer peripheral surface of the metal belt, leaving 5mm out, so that the coating width is 230mm. The resultant was then placed in an electric furnace and dried at 200° C. for 30 minutes, thereby forming a primer layer. The thickness of the primer layer after drying was set to 2 μm.

[0137] Next, an addition-curable liquid silicone rubber compound for forming the elastic layer 2B was prepared as described below. Specifically, an addition-curable liquid silicone rubber having a methyl group in a side chain (trade name: KE-1281-A, KE-1281-B; manufactured by Shin-Etsu Chemical Co., Ltd.) was prepared. M...

Embodiment 2

[0170] Except in the preparation step of the primer liquid for adhesion, polytetrafluoroethylene (PTFE) was used as the fluororesin instead of tetrafluoroethylene-perfluoroalkyl vinyl ether copolymer (PFA), and in the release layer 2D In the formation step of , except that the PFA dispersion liquid was changed to a PTFE dispersion liquid (trade name: 852N-201; manufactured by Du Pont-Mitsui Fluorochemicals Company, Ltd.), the same method as in Example 1 was produced according to Example 2. Fixing film. The thickness of the release layer was found to be 15 μm.

[0171] The fixing film was subjected to a durability test in the same manner as in Example 1.

[0172] In addition, the fixing film was subjected to a 100,000-sheet durability test in the same manner as in Example 1, and then the mutual adhesion between the release layer and the elastic layer was evaluated. In addition, FT-IR measurement was performed in the same manner as in Example 1 on the peeled surface. The resu...

Embodiment 3

[0174] Except in the preparation step of primer liquid for adhesion, tetrafluoroethylene-hexafluoropropylene copolymer (FEP) is used as fluororesin instead of tetrafluoroethylene-perfluoroalkyl vinyl ether copolymer (PFA), and In the forming step of the release layer 2D, except that the PFA dispersion was changed to the FEP dispersion (trade name: 856N-200; manufactured by Du Pont-Mitsui Fluorochemicals Company, Ltd.), in exactly the same manner as in Example 1 A fixing film according to Example 3 was produced. The thickness of the release layer was found to be 15 μm.

[0175] The fixing film was subjected to a durability test in the same manner as in Example 1.

[0176] In addition, the fixing film was subjected to a 100,000-sheet durability test in the same manner as in Example 1, and then the mutual adhesion between the release layer and the elastic layer was evaluated. In addition, FT-IR measurement was performed in the same manner as in Example 1 on the peeled surface. ...

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PUM

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Abstract

To provide a member for electrophotography having excellent durability; and an electrophotographic image forming apparatus. The member for electrophotography is provided with: an elastic layer containing silicone rubber; an intermediate layer containing aromatic polyimide and / or aromatic polyamideimide and a fluororesin; and a surface layer containing a fluororesin. The member for electrophotography is characterized in that: aromatic polyimide or aromatic polyamideimide is bonded to silicone rubber through a group containing an amide bond; The carbon atoms of the aromatic rings in the molecules of the amine or the aromatic polyamideimide are directly bonded.

Description

technical field [0001] The present invention relates to a member for electrophotography usable as a fixing member of an image forming apparatus such as a copying machine or a printer, and also relates to a fixing device and an electrophotographic image forming apparatus. Background technique [0002] A member for electrophotography used as a fixing member of a fixing device in a copying machine, a printer, a facsimile machine or the like has hitherto been provided with an elastic layer containing silicone rubber. In addition, a release layer containing a fluororesin and having excellent releasability of toner and the like has been formed on the surface of the elastic layer. However, the release layer containing fluororesin has a problem of insufficient adhesiveness with the elastic layer. [0003] In view of the above problems, Patent Document 1 proposes a laminate comprising: a base material (elastic layer) comprising silicone rubber, etc., and a metal oxide; A coating la...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G03G15/20G03G15/00
CPCG03G15/2057G03G2215/2025G03G15/0233G03G15/0818G03G15/162G03G15/1685G03G15/206
Inventor 松本真持松中胜久马场祐介井上哲孝浅香明志
Owner CANON KK
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