PRODUCTION METHOD OF ELECTROPHOTOGRAPHIC PHOTOSENSITIVE MEMBER
First Claim
1. A production method of an electrophotographic photosensitive member which has a photosensitive layer formed on a cylindrical supporting member, characterized by producing a surface layer of the electrophotographic photosensitive member, the surface layer having surface depressed portions which are formed by:
- (1) producing a coating liquid which contains a binder resin and an aromatic organic solvent (A) whose dipole moment found by dipole moment calculation by structure optimized-calculation using semiempirical molecular orbital calculation is 1.0 or less, and in which the content of the aromatic organic solvent is 50% by mass or more and 80% by mass or less based on the total mass of solvents in the coating liquid, andcoating the coating liquid on a layer on which the surface layer is formed,(2) condensing the surface of the surface layer on which the coating liquid is coated to form liquid droplets and the depressed portions thereon, and(3) drying the surface layer after the depressed portions are formed by condensation.
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Accused Products
Abstract
A production method of an electrophotographic photosensitive member which has high productivity when producing a surface layer in which depressed portions which are independent respectively are formed on an electrophotographic photosensitive member surface, and can produce highly uniform depressed portions in a photosensitive member surface, characterized by producing the surface layer by (1) a coating step of producing a coating liquid for a surface layer containing a binder resin and a specific solvent, and coating it on a surface of a cylindrical supporting member, (2) a condensation step of holding the cylindrical supporting member on which the coating liquid for a surface layer is coated, and condensing the surface of the cylindrical supporting member, and (3) a drying step of baking the cylindrical supporting member.
9 Citations
7 Claims
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1. A production method of an electrophotographic photosensitive member which has a photosensitive layer formed on a cylindrical supporting member, characterized by producing a surface layer of the electrophotographic photosensitive member, the surface layer having surface depressed portions which are formed by:
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(1) producing a coating liquid which contains a binder resin and an aromatic organic solvent (A) whose dipole moment found by dipole moment calculation by structure optimized-calculation using semiempirical molecular orbital calculation is 1.0 or less, and in which the content of the aromatic organic solvent is 50% by mass or more and 80% by mass or less based on the total mass of solvents in the coating liquid, and coating the coating liquid on a layer on which the surface layer is formed, (2) condensing the surface of the surface layer on which the coating liquid is coated to form liquid droplets and the depressed portions thereon, and (3) drying the surface layer after the depressed portions are formed by condensation. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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Specification