Picture fixation device and circulation film for picture fixation

A technology for image fixing and film application in the direction of shafts and bearings, electric recording technology using charge patterns, and equipment for electric recording technology using charge patterns, which can solve problems such as film instability or bending transmission characteristics, deterioration, etc.

Inactive Publication Date: 2004-12-15
NITTO DENKO CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, another problem arises, that the film itself will be unstable or bent and the transmission characteristics will be deteriorated due to the contact of the film with the additional member.

Method used

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  • Picture fixation device and circulation film for picture fixation
  • Picture fixation device and circulation film for picture fixation
  • Picture fixation device and circulation film for picture fixation

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0035] In 791.6 g of N-methyl-2-pyrrolidone, 100 parts by weight of polyimide resin solid content and 30 parts by weight (49.4 g) of hexagonal boron nitride were put and mixed and stirred. Then put in 117.6 grams of 3,3',4,4'-biphenyltetracarboxylic dianhydride, 21.6 grams of P-phenylene diamine and 40.0 grams of 4,4'-diaminobenzidine to continue together mix. The mixture was stirred at room temperature under a nitrogen atmosphere for 7 hours to complete the polymerization. In this way, the polyamic acid solution has been prepared. In the above introduction, the molar ratio of p-phenylenediamine (diamine exhibiting rigidity) to 4,4'-diaminobenzidine (diamine exhibiting flexibility) is 5 to 5.

[0036] The polyamic acid solution was placed on the inner peripheral surface of a cylindrical mold having an inner diameter of 30 mm and a length of 500 nm. A bullet-shaped moving body moves down by its own weight and rotates at 1500 rpm for 10 minutes, thereby obtaining a uniform co...

example 2

[0039] A thin tubular material was fabricated in the same manner as in Example 1, except that after spraying, the soak time at 350°C was 40 minutes. That is, a thin tubular material was produced with a combined polyimide layer of about 50 microns and a fluororesin layer of about 12 microns. The tensile elastic modulus of the tubular material is measured in accordance with Japanese Industrial Standard JISK-7127 (1999). As a result, the average tensile modulus of elasticity was 6500 N / mm2. On the other hand, the compressive load of the tubular material is 3.5 grams, and its Vickers hardness is 16 Hv. The copying test was carried out with the same method as in Example 1 under the condition of continuous operation of the device. The results showed that even after 3 weeks, no wear was seen on the surface of the releasable resin. Also, the image after fusing was so clear, indicating that the fusing characteristics of the device are excellent.

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PUM

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Abstract

An image fixing apparatus using an endless film in which abrasion resistance is largely improved by presence of the high-hardness releasable resin outer layer so that the endless film is provided with practically satisfactory mechanical strength as well as satisfactory abrasion resistance, whereby the image fixing apparatus can obtain a sharp image for a long term; and to provide such an image-fixing endless film for use in the image fixing apparatus.

Description

technical field [0001] The present invention relates to an image fixing device for fixing an unfixed image using a toner in an electrophotographic system device such as a copying machine, a laser beam printer, a facsimile machine, and the like, and to an image fixing device for use in the same. Circulating fixing film in image fixing unit. Background technique [0002] Heretofore, thermal web fixing is well known as a method of fixing an image on a recording material in an electrophotographic system device. Such as figure 1 As shown, the structure used in this system is that a halogen heater is used as the heat source 12, a halogen heater is installed in the core 11 of at least one roll 10 in a pair of reels, and at least one layer of heat-resistant Elastomer13. In this system, at least one roll 10 is covered with a layer of highly elastic elastomer 13, which imparts a higher nip pressure to the roll 10, thereby expanding the use of toner for unfixed images. 5 Nipple del...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16C13/00G03G15/20
CPCG03G15/2053
Inventor 石崎哲高山嘉也
Owner NITTO DENKO CORP
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