METHOD OF PRODUCING ELECTROPHOTOGRAPHIC PHOTOSENSITIVE MEMBER, METHOD OF PRODUCING ORGANIC DEVICE, AND EMULSION FOR CHARGE TRANSPORTING LAYER
First Claim
1. A method of producing an electrophotographic photosensitive member which comprises a support and a charge transporting layer formed thereon,the method comprising the steps of:
- preparing a solution comprising;
a first liquid whose solubility in water under 25°
C. and 1 atmosphere is 1.0 mass % or less;
a second liquid whose solubility in water under 25°
C. and 1 atmosphere is 5.0 mass % or more;
a charge transporting substance; and
a binder resin;
preparing an emulsion by dispersing the solution in water;
forming a coat for the charge transporting layer by using the emulsion; and
forming the charge transporting layer by heating of the coat.
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Abstract
Provided are a method of producing an electrophotographic photosensitive member, particularly, a method of producing an electrophotographic photosensitive member and an organic device by which, in a method of forming a charge transporting layer, the stability of an application liquid for the layer after long-term storage is improved while the usage of an organic solvent in the application liquid is curtailed, and the layer having high uniformity is formed. The method is a method of producing an electrophotographic photosensitive member which includes a support and a charge transporting layer formed thereon, the method including: preparing a solution including: a first liquid whose solubility in water under 25° C. and 1 atmosphere is 1.0 mass % or less; a second liquid whose solubility in water under 25° C. and 1 atmosphere is 5.0 mass % or more; a charge transporting substance; and a binder resin; preparing an emulsion by dispersing the solution in water; forming a coat for the layer on the support by using the emulsion; and forming the layer by heating of the coat.
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Citations
11 Claims
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1. A method of producing an electrophotographic photosensitive member which comprises a support and a charge transporting layer formed thereon,
the method comprising the steps of: -
preparing a solution comprising; a first liquid whose solubility in water under 25°
C. and 1 atmosphere is 1.0 mass % or less;a second liquid whose solubility in water under 25°
C. and 1 atmosphere is 5.0 mass % or more;a charge transporting substance; and a binder resin; preparing an emulsion by dispersing the solution in water; forming a coat for the charge transporting layer by using the emulsion; and forming the charge transporting layer by heating of the coat. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method of producing an organic device comprising a charge transporting layer,
the method comprising the steps of: -
preparing a solution comprising; a first liquid whose solubility in water under 25°
C. and 1 atmosphere is 1.0 mass % or less;a second liquid whose solubility in water under 25°
C. and 1 atmosphere is 5.0 mass % or more;a charge transporting substance; and a binder resin; preparing an emulsion by dispersing the solution in water; forming a coat by using the emulsion; and forming the charge transporting layer by heating of the coat. - View Dependent Claims (10)
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11. An emulsion for a charge transporting layer, comprising a solution dispersed in water,
wherein the solution comprises: -
a first liquid whose solubility in water under 25°
C. and 1 atmosphere is 1.0 mass % or less;a second liquid whose solubility in water under 25°
C. and 1 atmosphere is 5.0 mass % or more;a charge transporting substance; and a binder resin.
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Specification