Intermediate transfer belt and manufacturing method thereof

An intermediate transfer belt and modified technology, which can be used in building structures, instruments, door/window protection devices, etc., can solve such problems such as poor craftsmanship

Inactive Publication Date: 2009-02-11
KOLON IND INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this process is poor because it is difficult to use to make seamless intermediate transfer belts

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0038]In the preparation of a polysiloxane-modified polyamic acid solution, when the polysiloxane resin is used in an amount of less than 10% by weight based on the amount of diamine, water repellency and oil repellency are not greatly improved , thus not significantly improving the low moisture resistance which is a disadvantage of polyimide. On the other hand, if the amount exceeds 30% by weight, attributable to the influence of the polysiloxane resin having flexibility with respect to polyimide, the mechanical strength is sharply lowered.

[0039] During polymerization, a solvent selected from highly polar aprotic solvents such as N, N-dimethylformamide (DMF), dimethylacetamide (DMAc) and N-methyl-2- Pyrrolidone (NMP).

[0040] In consideration of heat dissipation, the resulting intermediate transfer belt preferably has a thermal conductivity of 5.1 to 7.4 W / mk. Therefore, when preparing the polysiloxane-modified polyamic acid solution, a thermally conductive filler is al...

Embodiment 1

[0061] While introducing nitrogen into a four-necked flask equipped with a mechanical stirrer, a reflux condenser and nitrogen filling into the inlet, the PMDA of 47g and 43g of 4,4'-diaminodiphenyl ether were dissolved in In the highly polar aprotic solvent DMF of 380g, afterward, with the weight based on 4,4'-diaminodiphenyl ether is the amount of 10% by weight to add 10% by weight of the number average molecular weight is 600 and has at its two ends Dimethicone containing aminoaminopropyl groups, from which a complete solution is prepared. Then, based on the total weight of the solute, 2% by weight of Ketyan black and 0.5% by weight of Dentall TM-200 as conductive fillers were dispersed in the above solution with an ultrasonic dispenser, and then allowed to react at room temperature for 1 hour, by This prepares a polydimethylsiloxane-modified polyamic acid solution containing a conductive filler.

[0062] The polydimethylsiloxane-modified polyamic acid solution thus prepar...

Embodiment 2

[0065] A polydimethylsiloxane-modified polyimide-based intermediate transfer belt was produced in the same manner as in Example 1 except that Dentall TM-200 was not used as the conductive filler.

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PUM

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Abstract

Disclosed are an intermediate transfer belt for use in a laser printer, a fax machine and a copier, and a production method thereof. Specifically, an intermediate transfer belt including silicone modified polyimide resin and a production method thereof are provided, thereby realizing a monolayer intermediate transfer belt having excellent electrical properties, water repellency and heat dissipation properties and good mechanical strength. Further, even without the additional use of an adhesive layer for adhesion to a fluorine resin layer and fluorine resin, the intermediate transfer belt can exhibit satisfactory properties, and process efficiency can be maximized.

Description

【Technical field】 [0001] In general, the present invention relates to an intermediate transfer belt for laser printers, facsimile machines and copiers and a manufacturing method thereof, and more specifically, to an intermediate transfer belt made of polysiloxane-modified polyimide resin The manufactured intermediate transfer belt and the method of manufacturing the intermediate transfer belt. 【Background technique】 [0002] In general, intermediate transfer belts that can be used in laser printers, facsimile machines, and copiers should have excellent heat dissipation, water repellency, oil repellency, stain resistance, heat resistance, elastic modulus, release from paper, Antistatic and durability properties. [0003] In addition, when the above device is operated for a long time, a large amount of heat is generated at the interface between the intermediate transfer belt and the supplied paper during printing due to frictional heat caused between them, so heat dissipation...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G03G15/14
CPCE06B9/262E06B9/322E06B2009/2622E06B2009/583
Inventor 朴晓准林菜铉姜忠锡宋相旻
Owner KOLON IND INC
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