Method for producing electrophotographic photosensitive member
A photosensitive member, electrophotography technology, applied in optics, electrography, instruments, etc., can solve problems such as high cost, irregular bumps, uneven shapes, etc.
Pending Publication Date: 2021-10-22
CANON KK
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Problems solved by technology
In addition, irregular unevenness may appear due to changes in the dispersion of fine particles and due to particle diameter changes through particle aggregation
In addition, depending on the amount added, the characteristics of the photosensitive member may be adversely affected, whereby the degree of freedom in the amount is not so great
[0010] That is, in the conventional surface roughening method, man-hours are required, the cost is high, and parts with uneven shapes are formed. Therefore, it is necessary to uniformly impart a finely controlled shape (finely controlled shape) to the surface by a simpler method. roughening method
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[0018] Preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings.
[0019] The present invention relates to a method for producing an electrophotographic photosensitive member having a support, a photosensitive layer, and a protective layer in this order, the protective layer having wrinkles on its outer surface, the method comprising (i) forming a photosensitive layer on the body, and (ii) forming a protective layer on the photosensitive layer.
[0020] The relationship between the production method of the present invention and the shape of wrinkles on the outer surface of the protective layer obtained by the present invention (hereinafter, also referred to as "wrinkle shape") will be described.
[0021] In general, when forming a protective layer as a cured film, the phenomenon that the surface of the protective layer becomes wrinkled in step (ii) is considered to be a coating film defect.
[0022] However, as...
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Abstract
The invention relates to a method for producing an electrophotographic photosensitive member. The method for producing the electrophotographic photosensitive member including: forming a photosensitive layer; and forming a protective layer, wherein the step of forming the photosensitive layer forms a photosensitive layer having an amount of residual solvent of a first solvent in the photosensitive layer of 0.05% to 2.50% and an amount of residual solvent of a second solvent in the photosensitive layer of 0.50% to 2.50%, and the step of forming the protective layer includes step (A) of forming a cured film and step (B) of forming the protective layer having wrinkle shapes, wherein, in step (A), the irradiated coating film is heated at a heating temperature lower than a boiling point of the first solvent and in step (B), the cured film is heated at a heating temperature higher than a boiling point of the first solvent.
Description
technical field [0001] The present invention relates to a production method of an electrophotographic photosensitive member. Background technique [0002] As an electrophotographic photosensitive member mounted on a process cartridge and an electrophotographic apparatus, an electrophotographic photosensitive member containing an organic photoconductive substance (charge generating substance) has been used. In recent years, electrophotographic apparatuses with a longer life are required, and therefore, it is desirable to provide an electrophotographic photosensitive member capable of improving image quality and abrasion resistance (mechanical durability) and suppressing fluctuations in potential. [0003] As a method for improving the abrasion resistance of an electrophotographic photosensitive member (hereinafter, also simply referred to as "photosensitive member"), it has been proposed to use a radically polymerizable resin on the surface of the photosensitive member and pr...
Claims
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IPC IPC(8): G03G5/04G03G5/147
CPCG03G5/04G03G5/14713G03G5/14791G03G5/14795G03G5/147G03G5/047
Inventor 中村延博石田知仁岩崎修平渡部博之山合达也石塚由香伊藤阳太村上健
Owner CANON KK