JP2011095664A5 - - Google Patents

Description

The present invention comprises a support, in the manufacturing method of the electrophotographic photosensitive member having a photosensitive layer formed on the straight of the intermediate layer formed on the support and the intermediate layer,
An intermediate layer coating solution formed of an aqueous dispersion containing resin particles having a particle size of 0.05 μm or more and 0.5 μm or less is coated on the support to form a coating film. step of forming the intermediate layer heated to melt the resin particles and,
Ke tons, the by by coating a coating solution in which the organic pigment is dispersed in a solvent having the structure of any of esters and ether on the intermediate layer to form a coating film, heating the formed coating film Forming a photosensitive layer ;
Have
When the photosensitive layer has a single-layer structure, the resin particles are insoluble in the photosensitive layer coating solution for forming the photosensitive layer ,
When the photosensitive layer has a laminated structure having a charge generation layer and a charge transport layer in this order from the intermediate layer side , the resin particle is a charge generation layer coating solution for forming the charge generation layer. The present invention relates to a method for producing an electrophotographic photosensitive member, which is insoluble in water.

Claims (8)

Support, in the manufacturing method of the electrophotographic photosensitive member having a photosensitive layer formed on the straight of the intermediate layer formed on the support and the intermediate layer,
The coating solution for intermediate layer formed by an aqueous dispersion containing the following resin particles with particle sizes of 0.05μm or 0.5μm was coated on the support to form a coating film, the formed coating film step of forming the intermediate layer heated to melt the resin particles and,
Ke tons, the by by coating a coating solution in which the organic pigment is dispersed in a solvent having the structure of any of esters and ether on the intermediate layer to form a coating film, heating the formed coating film Forming a photosensitive layer ;
Have
Photosensitive layer, when it has a structure of a single layer, the resin particles are insoluble in the photosensitive layer coating solution for forming the photosensitive layer, the photosensitive layer, a charge generation layer from the intermediate layer side And a charge transport layer in this order, the resin particles are insoluble in the charge generation layer coating solution for forming the charge generation layer. Manufacturing method. In a method for producing an electrophotographic photosensitive member having a support, an intermediate layer formed on the support, a charge generation layer formed directly on the intermediate layer, and a charge transport layer formed on the charge generation layer,
An intermediate layer coating solution formed of an aqueous dispersion containing resin particles having a particle size of 0.05 μm or more and 0.5 μm or less is coated on the support to form a coating film. Heating to melt the resin particles to form an intermediate layer; and
Coating a coating solution for a charge generation layer in which an organic pigment is dispersed in a solvent having a structure of ketone, ester, or ether on the intermediate layer to form a coating film, and heating the formed coating film Forming the charge generation layer by:
A method for producing an electrophotographic photoreceptor, wherein the resin particles are polyolefin copolymer particles. The resin particles are polyolefin copolymer particles having the following (A1), (A2) and (A3),
The mass ratio of the following (A1), (A2) and (A3) is
0.01 ≦ [(A2) / {(A1) + (A2) + (A3)}] × 100 ≦ 30
55/45 ≦ (A1) / (A3) ≦ 99/1
The method for producing an electrophotographic photosensitive member according to claim 1, wherein:
(A1): Repeating structural unit represented by the following formula (11)

(In formula (11), R ^{11 to} R ¹⁴ each independently represents a hydrogen atom or an alkyl group.)
(A2): Repeating structural unit represented by the following formula (21) or (22)

(In formula (21) and formula (22), R ^{21 to} R ²⁴ each independently represents a hydrogen atom, an alkyl group, a phenyl group or —Y ²¹ COOH (Y ²¹ represents a single bond, an alkylene group or an arylene group). R ²⁵ and R ²⁶ each independently represents a hydrogen atom, an alkyl group or a phenyl group, and X ²¹ represents —Y ²² COOCOY ²³ — (Y ²² and Y ²³ each independently represents a single bond, an alkylene group or an arylene group.), Wherein at least one of R ^{21 to} R ²⁴ is 1 represented by —Y ²¹ COOH. Valent group.)
(A3): repeating structural unit represented by the following formula (31), formula (32), formula (33) or formula (34)

(In formula (31) to formula (34), R ^{31 to} R ³⁵ each independently represent a hydrogen atom or a methyl group, and R ^{41 to} R ⁴³ each independently represents an alkyl group having 1 to 10 carbon atoms. Indicate
R ^{51 to} R ⁵³ each independently represent a hydrogen atom or an alkyl group having 1 to 10 carbon atoms. ) Before SL (A1), (A2) and the mass ratio of (A3) is represented by the following formula 0.01 ≦ [(A2) / { (A1) + (A2) + (A3)}] × 100 ≦ 10
55/45 ≦ (A1) / (A3) ≦ 99/1
The method for producing an electrophotographic photosensitive member according to claim 3 , wherein the polyolefin copolymer satisfies the following requirements. Before SL (A1), (A2) and the mass ratio of (A3) is represented by the following formula 0.01 ≦ [(A2) / { (A1) + (A2) + (A3)}] × 100 ≦ 5
55/45 ≦ (A1) / (A3) ≦ 99/1
The method for producing an electrophotographic photosensitive member according to claim 4 , wherein the polyolefin copolymer satisfies the above requirements. Said polyolefin copolymer is an ethylene - maleic anhydride - according to any one of claims 2 to 5 is a methacrylic acid ester terpolymer - acrylic acid ester terpolymer or an ethylene - maleic anhydride A method for producing an electrophotographic photoreceptor. The method for producing an electrophotographic photosensitive member according to any one of claims 1 to 6 , wherein the aqueous dispersion further contains ammonia or an organic amine compound having a boiling point of 30 ° C to 250 ° C. It said aqueous dispersion further process for producing an electrophotographic photosensitive member according to any one of claims 1 to 7 containing metal oxide particles or organic electron transport material.