Background-color-free three-layer coating process

A coating process and no background color technology, applied in the field of OPC organic photoconductive drums, can solve the problems of difficult storage, etc., and achieve the effects of easy storage, control of dot rate, and stable coating liquid

Inactive Publication Date: 2014-04-09
宁波舜韵光电科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The problem to be solved by the present invention is to provide a three-layer coating process without background color, so as to overcome the defects in the prior art that are not easy to preserve, such as sedimentation, crystallization, and solidification, which affect the use.

Method used

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  • Background-color-free three-layer coating process

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0060] Drum base is mirror anodized drum base

[0061] Step S1, carrier blocking layer paint: nylon resin CM-800078g, titanium dioxide 3.9g, 1600ml methanol, 400ml n-butanol, and prepare a paint with a solid content of about 4.5%. Coating a 0.5 μm thick coating on the mirror anodized drum base forms a carrier blocking layer.

[0062] Step S2, carrier forming layer coating: polyvinyl butyral resin B-90 10.5g, γ-type high-sensitivity titanium phthalocyanine CG-01H 14.8g, tetrahydrofuran 620ml, cyclohexanone 50ml, and the solid content of the preparation is about 4% paint. Coating about 0.5 μm thick coating on the carrier blocking layer forms the carrier forming layer. In the step S2, the drying temperature of the carrier generation layer is 50° C., and the drying time is 30 minutes.

[0063] Step S3, carrier transport layer coating: p-TPD871g, butadiene 871g, bisphenol Z polycarbonate PCX-4002026g, antioxidant BHT76g, high-purity silicone oil 1.8g, dichloromethane 12000ml, 1,...

Embodiment 2

[0068] The second embodiment is basically the same as the first embodiment, except that the drum base is a turning drum base.

[0069] Step S1, carrier blocking layer paint: nylon resin CM-800078g, titanium dioxide 3.9g, 1600ml methanol, 400ml n-butanol, and prepare a paint with a solid content of about 4.5%. Coating a 1μm or 3μm thick coating on the turning drum base forms a carrier blocking layer.

[0070] Step S2, carrier forming layer coating: polyvinyl butyral resin B-90 10.5g, γ-type high-sensitivity titanium phthalocyanine CG-01H 14.8g, tetrahydrofuran 620ml, cyclohexanone 50ml, and the solid content of the preparation is about 4% paint. Coating about 0.3 μm or 0.4 μm thick coating on the carrier blocking layer forms the carrier forming layer. In the step S2, the drying temperature of the carrier generation layer is 60° C., and the drying time is 20 minutes.

[0071] Step S3, carrier transport layer coating: p-TPD871g, butadiene 871g, bisphenol Z polycarbonate PCX-40...

Embodiment 3

[0075] Embodiment 3 is basically the same as Embodiments 1 and 2, except that the drum base is directly anodized with a sand surface, and the step S1 in claim 1 may not be performed if the drum base is anodized with a sand surface, and only the two Floor.

[0076] Step S2, carrier forming layer paint: polyvinyl butyral resin B-9010g, gamma-type high-sensitivity titanium phthalocyanine CG-01H15g, tetrahydrofuran 600ml, cyclohexanone 50ml, made into a paint with a solid content of about 4.1% . Coating about 0.5 μm thick coating on the carrier blocking layer forms the carrier forming layer. In the step S2, the drying temperature of the carrier generating layer is 65° C., and the drying time is 15 minutes.

[0077] Step S3, carrier transport layer coating: p-TPD729g, butadiene 912g, bisphenol A and F type copolycarbonate FPC-71552026g, TTA182g, antioxidant BHT73g, high-purity silicone oil 1.73g, dichloromethane 12000ml, 1 , 1500ml of 2-dichloroethane, made into a coating with a...

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Abstract

The invention provides a background-color-free three-layer coating process. The process comprises the following steps of step S1. coating an organic light guide drum base with carrier barrier layer paint so as to form a carrier barrier layer, wherein the carrier barrier layer paint is prepared as follows: nylon resin and titanium dioxide are prepared into a solution with the solid content of 3 to 7 percent by utilizing a solvent; step S2. coating the carrier barrier layer with carrier forming layer paint to form a carrier forming layer, wherein the carrier forming layer paint contains TiOPc and polyvinyl butyral resin, and the ratio of the TiOPc to the polyvinyl butyral resin is 1:1 to 1.5:1; and step S3. coating the carrier forming layer with carrier transmission layer paint to form a carrier transmission layer. The preparation process of the coating solution is simple, the coating solution is easy to store, the phenomenon such as precipitation and crystallization cannot occur easily, the production cost is low, and the application property of a prepared drum core cannot lose easily due to the pollution or fracturing or stripping of the coating.

Description

technical field [0001] The invention relates to the technical field of OPC organic photoconductive drums, in particular to a three-layer coating process without background color. Background technique [0002] The existing organic photoconductive drum coating liquid coatings may have cumbersome preparation processes, and these coatings may not be easy to preserve during the production process, and there are problems such as sedimentation, crystallization, and solidification that affect the use. At the same time, the existing coating liquid coatings often imitate The color of the OEM original drum core, the appearance of the photosensitive drum is not bright enough, not innovative enough, and cannot meet the aesthetic requirements of some customers. [0003] Therefore, a three-layer coating process without background color was developed, which can reduce the cost and have the same photoelectric parameters as the original performance, and at the same time make the coating liqui...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G03G5/047
Inventor 姚国祥吴威威
Owner 宁波舜韵光电科技有限公司
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