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Intermediate transfer belt and method of manufacturing the same

A manufacturing method and technology for a transfer belt, which are applied to instruments, equipment for electrical recording technology using charge patterns, optics, etc., can solve the problems of thickness difference, inability to manufacture intermediate transfer belts, etc., and achieve reduced surface resistivity differences and uniformity. The effect of thickness

Inactive Publication Date: 2009-12-02
KOLON IND INC
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, this method can only be used for low viscosity polyamic acid solutions
In addition, when the rotation axis of the washing tub is inclined, it is impossible to manufacture an intermediate transfer belt with a predetermined thickness
At the same time, when the rotation axis of the washing tub is vertical, the rapid rotation is limited and causes slight thickness differences

Method used

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  • Intermediate transfer belt and method of manufacturing the same

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Embodiment Construction

[0021] The present invention will be described in detail below.

[0022] The polyimide resin used in the intermediate transmission belt of the present invention is prepared by dissolving dianhydride, diamine and conductive filler in a solvent to prepare a polyamic acid solution, and then using a roller to coat the polyamic acid solution It is obtained by covering the outer surface of the mold, followed by heat treatment to produce imidization reaction.

[0023] When measuring the resistivity of the outer surface and the resistivity of the inner surface of the molded intermediate transfer belt without subsequent surface treatment such as antistatic coating, the ratio of the surface resistivity is within 10 -2 to 10 2 better within range. The surface resistivity ratio can be calculated by the following Equation 1:

[0024] Formula 1

[0025] Surface resistivity ratio = |Outer surface resistivity / Inner surface resistivity|

[0026] When the surface resistivity ratio exceeds ...

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Abstract

Disclosed is an intermediate transfer belt for use in a laser printer, a fax machine, or a copier, which is manufactured from a polyimide compound and has a decreased difference in surface resistivity between the inner surface and the outer surface thereof, even without the application of additional surface treatment, such as antistatic coating, thus realizing improved operating properties, and furthermore, is seamless and has uniform thickness thanks to the minimization of thickness variation. A method of manufacturing the intermediate transfer belt is also provided.

Description

technical field [0001] The present invention relates to an intermediate transfer belt used in laser printers, facsimile machines and copiers, and a method of manufacturing the intermediate transfer belt. Background technique [0002] In general, intermediate transfer belts used in laser printers, fax machines or copiers must have excellent heat dissipation, water repellency, oil repellency, stain resistance, heat resistance, modulus, paper release, antistatic properties and durability sex etc. [0003] Then, in order to realize such an intermediate transmission belt, the use of a polyimide compound having advantages including high thermal stability, and excellent mechanical and electrical characteristics has been intensively studied. However, this compound is extremely sensitive to moisture, and the reliability of its electrical insulation decreases over time, and it is difficult to process due to the high glass transition temperature of the polyimide compound, and the poly...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G03G15/14
CPCG03G15/162G03G15/1605G03G15/14
Inventor 朴晓准宋相旻姜忠锡
Owner KOLON IND INC