Photoelectric sensitive material

An electro-optical and photosensitive layer technology, applied in the field of electro-photosensitive materials, can solve problems such as inability to achieve

Inactive Publication Date: 2002-10-23
KYOCERA DOCUMENT SOLUTIONS INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Therefore, the effect of reducing the thickness difference to ensure a constant film thickness cannot be achieved

Method used

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  • Photoelectric sensitive material
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Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0130] The present invention will be described below with reference to Examples and Comparative Examples. form the middle layer

[0131] The ball mill was operated for 24 hours to mix and disperse the following components and zirconia beads having a diameter of 1 mm, thereby preparing a coating solution for the intermediate layer. * Binder resin: 60 parts by weight of phenol resin (TD447 obtained from Dainipon Ink & Chemicals Inc.) * Charge transfer material: 20 parts by weight of a compound represented by general formula ET-1 (MW: 425) * Dispersion medium: 100 parts by weight methanol

[0132] The 30 mm diameter aluminum tube is held by a positioner which holds the aluminum tube in a form around its interior and places the aluminum tube above the surface of the liquid on which the solution is applied with its axis perpendicular to the liquid surface.

[0133] The positioner was lowered at a speed of 5 mm / sec to immerse the entirety of the tube in the coating solution, and s...

Embodiment 2～8

[0143] Each of the electrophotosensitive materials of Examples 2 to 8 was produced in the same manner as in Example 1, except that the same amount of the compound listed in Table 1 was used instead of the compound of the general formula (ET-1) as the charge transfer material.

[0144] Table 1

[0145] C.T.M MW

Embodiment 1

[0146] Example 1 ET-1 425

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Abstract

The present invention relates to an electrophotosensitive material characterized in that an intermediate layer is inserted between a conductive substrate and a photosensitive layer, and the electrophotosensitive material contains a binder resin and a charge transfer material having a molecular weight of 400 or more. The intermediate layer has a constant thickness because the intermediate layer can be formed by, for example, dip-coating a coating solution containing the above two components on the conductive substrate without being impaired by too much downward flow of the coating solution. Thus, covering the photosensitive layer on the intermediate layer provides an electrophotosensitive material that can obtain good blur-free images.

Description

technical field [0001] The invention relates to an electrophotosensitive material comprising an electrically conductive substrate, a photosensitive layer and an interposed intermediate layer (undercoat layer). Background of the invention [0002] As an electrophotosensitive material for image forming equipment such as xerographic copiers, plain paper facsimile machines, laser printers, and composite machines combining these functions, a so-called organic electrophotosensitive material is widely used, which includes the following Combination of components: [0003] * charge generating materials that generate charges (holes and electrons) when exposed to light; [0004] * A charge transfer material that transports the generated charges; and [0005] * Binder resin. [0006] Charge transfer materials are divided into two categories, including hole transfer materials for transferring charge holes, and electron transfer materials for transferring electrons. [0007] An advant...

Claims

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Application Information

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IPC IPC(8): G03G5/06G03G5/14
CPCG03G5/0605G03G5/0607G03G5/0609G03G5/0612G03G5/0616G03G5/0637G03G5/0672G03G5/142G03G5/144G03G5/06144G03G5/061443G03G5/06145G03G5/06147G03G5/061473G03G5/06149
Inventor内田真纪冈田英树
OwnerKYOCERA DOCUMENT SOLUTIONS INC