Heat fixing belt, method for producing heat fixing belt, and image fixation device

A fixing belt and heat-generating layer technology, which is applied in the direction of electrical recording technology using charge graphics, equipment and instruments using electrical recording technology using charge graphics, can solve problems such as unrealized adhesion, and achieve excellent bending resistance and Durability, reduction of volume resistance value, excellent effect of bending resistance and durability

Inactive Publication Date: 2018-12-21
KINOYOSHA CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, sufficient adhesion was not achieved even by this method

Method used

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  • Heat fixing belt, method for producing heat fixing belt, and image fixation device
  • Heat fixing belt, method for producing heat fixing belt, and image fixation device
  • Heat fixing belt, method for producing heat fixing belt, and image fixation device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0094] (1) Forming of the substrate layer

[0095] A stainless steel tube with an outer diameter of 30 mm and a total length of 350 mm was coated with polyamic acid (U-varnish-S, manufactured by Ube Industries, Ltd.) with a film thickness of 400 μm. Thereafter, it was dried at 120° C. for 60 minutes, heated up to 200° C. over 30 minutes, and kept at 200° C. for 30 minutes. Next, the temperature was raised to 380° C. over 30 minutes and kept at 380° C. for 15 minutes to complete the imidization reaction. Thereafter, after cooling to room temperature, the stainless steel tube was pulled out, and the end was cut off to obtain a seamless tubular body of polyimide resin with an inner diameter of 30 mm, a thickness of 70 μm, and a length of 240 mm.

[0096] A stainless steel tube having an outer diameter of 30 mm and a length of 240 mm was inserted into the polyimide resin tubular body obtained above.

[0097](2) Preparation of elastic resistance heating layer material

[0098] A...

Embodiment 2

[0118] Except in the material of the elastic resistance heating layer, adjust the mixing amount of the dispersion of Ketjen Black so that the volume resistance value of the elastic resistance heating layer is 1×10 3 Except for Ω·cm, a heat-generating fixing belt was produced in the same manner as in Example 1. The mixing amount of Ketjen Black was 10% by weight relative to 100% by weight of fluororubber in the solid content at this time, and the thickness of the elastic resistance heating layer was 220 μm.

Embodiment 3

[0120] In addition to the material of the elastic resistance heating layer, the mixing amount of the carbon nanotube dispersion (CNTD series, developed product; manufactured by Mikuni Pigment Co., Ltd.) is adjusted so that the volume resistance value of the elastic resistance heating layer is 1×10 -3 Except for Ω·cm, a heat-generating fixing belt was produced in the same manner as in Example 1. The mixing amount of carbon nanotubes was 50% by weight relative to 100% by weight of fluororubber in the solid content at this time, and the thickness of the resistance heating layer was 38 μm.

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PUM

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Abstract

This heat fixing belt is provided with: a tubular belt base that is formed from an insulating heat-resistant resin; an elastic resistive heat generation layer that is formed from an elastic base material containing an elastic material and contains a conductive material; a mold release layer; and a pair of electrode layers for feeding a power to the elastic resistive heat generation layer. The elastic resistive heat generation layer is provided on the outer circumferential surface of the belt base. The mold release layer is provided as the outermost layer. The pair of electrode layers are provided on both end portions of the outer circumferential surface of the elastic resistive heat generation layer, and have a volume resistivity that is lower than the volume resistivity of the elastic resistive heat generation layer.

Description

technical field [0001] The present invention relates to a heat-generating fixing belt for thermally fixing a toner image on an image carrier in an image forming apparatus such as a copier or a printer, a method for manufacturing the heat-generating fixing belt, and an image fixing device. Background technique [0002] In recent years, among image forming apparatuses such as copiers and printers that thermally fix unfixed toner carried on an image carrier such as plain paper to form a toner image, image forming apparatuses that use heat-generating fixing belts have been proposed. Wherein, the heat-generating fixing belt includes a resistive heat-generating layer. The fixing belt generates heat by supplying electricity to a resistive heating layer included therein, and thermal fixing of toner is achieved by this heat. The warm-up time of the image forming apparatus employing this fixing method is shorter than conventional ones, which is preferable from the viewpoint of energy...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G03G15/20
CPCG03G15/20G03G15/2053G03G15/2057G03G2215/2016G03G2215/2048G03G15/2064
Inventor 石仓定行茶端洋平
Owner KINOYOSHA CO LTD
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