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Three-layer coating process and photosensitive drum prepared by adopting same

A coating process and coating technology, applied in the field of photosensitive drums, can solve the problems of destroying the physical and chemical properties of coatings, sedimentation, crystallization, solidification, coating loss of photoelectric properties, etc., to achieve simple preparation process, stable coating liquid without crystallization, and excellent photoelectric properties Effect

Inactive Publication Date: 2013-03-27
珠海惠尔美打印耗材有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Existing photosensitive drum coating liquids and coatings may have cumbersome preparation processes. These coatings are not easy to preserve during the production process, and there are problems such as sedimentation, crystallization, and solidification that affect use, or they are damaged during the existing preparation process. The original physical and chemical properties of the coating make the coating lose its proper photoelectric performance after use
In the industry, the commonly used three-layer coating liquid formula is provided by Japanese and German manufacturers, and the price is relatively expensive

Method used

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  • Three-layer coating process and photosensitive drum prepared by adopting same
  • Three-layer coating process and photosensitive drum prepared by adopting same

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Effect test

Embodiment 1

[0035] Carrier blocking layer coating: titanium yellow FX-50 (purchased from Japan Materials Co., Ltd.) 54.6g, titanium dioxide CR-90 (purchased from Japan Materials Materials Co., Ltd.) 54.6g, nylon resin CM-8000 (purchased from Japan Materials Materials Corporation) 54.6g g, 1.63g of dispersant BYK-180 (purchased from Japan Materials Co., Ltd.), 1200ml of methanol, 400ml of n-butanol, and a coating with a solid content of about 11.5%. Coating a 2~2.5μm thick coating on the drum base forms a carrier blocking layer.

[0036] Carrier generating layer coating: polyvinyl butyral resin B-90 (purchased from Japan Materials Co., Ltd.) 11g, γ-type high-sensitivity titanium phthalocyanine CG-01H (purchased from IT-Chem) 14.3g, tetrahydrofuran (purchased From Guangzhou Guanghua Technology) 650ml, cyclohexanone 70ml, made into a coating with a solid content of about 3.8%. A layer about 0.5 μm thick is coated on the carrier blocking layer to form a carrier generating layer.

[0037] Ca...

Embodiment 2

[0041] Carrier blocking layer coating: titanium yellow FX-50 (purchased from Japan Materials Co., Ltd.) 54.6g, titanium dioxide CR-90 (purchased from Japan Materials Materials Corporation) 54.6g, nylon resin CM-8000 (purchased from Japan Materials Corporation) 60.6 g, 1.63g of dispersant BYK-180 (purchased from Japan Materials Co., Ltd.), 1200ml of methanol, 400ml of n-butanol, and make a coating with a solid content of about 12%. Coating a 2~2.5μm thick coating on the drum base forms a carrier blocking layer.

[0042] Carrier generating layer coating: polyvinyl butyral resin B-90 (purchased from Japan Materials Co., Ltd.) 10.5g, γ-type high-sensitivity titanium phthalocyanine CG-01H (purchased from IT-Chem) 14.8g, tetrahydrofuran ( Purchased from Guangzhou Guanghua Technology) 650ml, cyclohexanone 70ml, made into a coating with a solid content of about 3.8%. A layer about 0.5 μm thick is coated on the carrier blocking layer to form a carrier generating layer.

[0043] Carri...

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Abstract

The invention discloses a three-layer coating process and a photosensitive drum prepared by adopting the three-layer coating process. The three-layer coating process comprises the following steps of: 1, coating a carrier barrier layer coating on a drum base to form a carrier barrier layer, wherein the carrier barrier layer coating contains titanium dioxide, titanium yellow and nylon rein, the mass ratio of the titanium dioxide to the titanium yellow is 1:1-2:1, the mass ratio of the TiO2 to the nylon resin is 1:1-2:1; 2, coating a carrier forming layer coating on the carrier barrier layer to form a carrier forming layer, the carrier forming layer coating contains titanyl phthalocyanine and polyvinyl butyral resin with a proportion of 1:1-1.5:1; and 3, coating a carrier transmission layer coating on the carrier forming layer to form a carrier transmission layer. The three-layer coating process can ensure that a coating material for coating an organic photosensitive drum has good photoelectric property and a coating solution is stable without crystallizing; and the photosensitive drum has the characteristics of high black degree, high wear resistance and low cost.

Description

technical field [0001] The invention relates to an OPC organic photoconductive drum, in particular to a three-layer coating process and a photosensitive drum prepared by the same. Background technique [0002] Existing photosensitive drum coating liquids and coatings may have cumbersome preparation processes. These coatings are not easy to preserve during the production process, and there are problems such as sedimentation, crystallization, and solidification that affect use, or they are damaged during the existing preparation process. The original physical and chemical properties of the coating make the coating lose its proper photoelectric performance after use. In the industry, the commonly used three-layer coating liquid formula is provided by Japanese and German manufacturers, and the price is relatively expensive. [0003] Therefore, a three-layer coating process is developed, which can solve the above-mentioned problems of the coating, so that it can reduce the cost ...

Claims

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Application Information

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IPC IPC(8): G03G5/05C09D177/00C09D129/14C09D169/00C09D7/12
Inventor 姚国祥吴威威
Owner 珠海惠尔美打印耗材有限公司
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