发明名称 |
Method of producing electrophotographic photosensitive member |
摘要 |
The present invention provides a method of producing an electrophotographic photosensitive member using a dispersion solution that shows high liquid stability in long-period storage and hardly causes aggregation of charge-transporting pigment particles during drying a coating. The method of producing an electrophotographic photosensitive member having a charge-transporting layer comprises a step of forming a coating film by applying a dispersion solution comprising polyolefin polymer particles and charge-transporting pigment particles as dispersoids and comprising a dispersion medium, and then forming the charge-transporting layer by heating the coating film and melting the polyolefin polymer particles, wherein the particles consisting of the polyolefin polymer particles and the charge-transporting pigment particles in the dispersion solution have a number average particle diameter of 50 nm or more and 300 nm or less and a degree of dispersion (standard deviation/number average particle diameter) of 1.0 or less. |
申请公布号 |
US8927184(B2) |
申请公布日期 |
2015.01.06 |
申请号 |
US201113989375 |
申请日期 |
2011.11.10 |
申请人 |
Canon Kabushiki Kaisha |
发明人 |
Sekiya Michiyo;Sekido Kunihiko;Maruyama Akihiro |
分类号 |
G03G5/04;G03G15/00;G03G5/05;G03G5/06 |
主分类号 |
G03G5/04 |
代理机构 |
Canon U.S.A., Inc. IP Division |
代理人 |
Canon U.S.A., Inc. IP Division |
主权项 |
1. A method of producing an electrophotographic photosensitive member comprising a charge-transporting layer, the method comprising a step of forming a coating film by applying a dispersion solution comprising polyolefin polymer particles and charge-transporting pigment particles as dispersoids and comprising a dispersion medium, and then forming the charge-transporting layer by heating the coating film and melting the polyolefin polymer particles,
wherein, the particles consisting of the polyolefin polymer particles and the charge-transporting pigment particles in the dispersion solution have a number average particle diameter of 50 nm or more and 300 nm or less and a degree of dispersion (standard deviation/number average particle diameter) of 1.0 or less. |
地址 |
Tokyo JP |