Process for producing electrophotographic photosensitive member
First Claim
1. A process for producing an electrophotographic photosensitive member;
- the process comprising the step of bringing i) the surface of an electrophotographic photosensitive member comprising at least a cylindrical support and a charge transport layer provided thereon and ii) a mold having a fine unevenness surface profile, into pressure contact with each other to transfer the fine unevenness surface profile to the surface of the electrophotographic photosensitive member, wherein;
the mold and the cylindrical support are so temperature-controlled as to be T3<
T1<
T2 where the glass transition temperature of the charge transport layer is represented by T1(°
C.), the temperature of the mold by T2(°
C.), and the temperature of the cylindrical support by T3(°
C.), and the following relationship is maintained;
T1<
T4 where the maximum value of the temperature of the charge transport layer at the part of pressure contact between the surface of the electrophotographic photosensitive member and the mold is represented by T4(°
C.), wherein the charge transport layer is formed by coating a solution containing at least a binder resin and a charge-transporting material, and then drying the solution;
T5<
T4 where the maximum value of the temperature of the charge transport layer in the step of drying is represented by T5(°
C.);
T6<
T1 where the maximum value of the temperature of the charge transport layer at the part other than the part of pressure contact between the surface of the electrophotographic photosensitive member and the mold is represented by T6(°
C.); and
T4<
T7 where the melting point of the charge-transporting material is represented by T7 (°
C.).
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Abstract
A process for producing an electrophotographic photosensitive member, which has the step of bringing i) the surface of an electrophotographic photosensitive member having at least a charge transport layer on a cylindrical support and ii) a mold having a fine unevenness surface profile into pressure contact with each other to transfer the fine unevenness surface profile to the surface of the electrophotographic photosensitive member. The mold and the support are so temperature-controlled as to be T3<T1<T2 where the glass transition temperature of the charge transport layer is represented by T1 (°C.), the temperature of the mold by T2 (°C.), and the temperature of the support by T3 (°C.).
37 Citations
6 Claims
-
1. A process for producing an electrophotographic photosensitive member;
- the process comprising the step of bringing i) the surface of an electrophotographic photosensitive member comprising at least a cylindrical support and a charge transport layer provided thereon and ii) a mold having a fine unevenness surface profile, into pressure contact with each other to transfer the fine unevenness surface profile to the surface of the electrophotographic photosensitive member, wherein;
the mold and the cylindrical support are so temperature-controlled as to be T3<
T1<
T2 where the glass transition temperature of the charge transport layer is represented by T1(°
C.), the temperature of the mold by T2(°
C.), and the temperature of the cylindrical support by T3(°
C.), and the following relationship is maintained;T1<
T4 where the maximum value of the temperature of the charge transport layer at the part of pressure contact between the surface of the electrophotographic photosensitive member and the mold is represented by T4(°
C.), wherein the charge transport layer is formed by coating a solution containing at least a binder resin and a charge-transporting material, and then drying the solution;T5<
T4 where the maximum value of the temperature of the charge transport layer in the step of drying is represented by T5(°
C.);T6<
T1 where the maximum value of the temperature of the charge transport layer at the part other than the part of pressure contact between the surface of the electrophotographic photosensitive member and the mold is represented by T6(°
C.); andT4<
T7 where the melting point of the charge-transporting material is represented by T7 (°
C.). - View Dependent Claims (2, 3, 4, 5)
- the process comprising the step of bringing i) the surface of an electrophotographic photosensitive member comprising at least a cylindrical support and a charge transport layer provided thereon and ii) a mold having a fine unevenness surface profile, into pressure contact with each other to transfer the fine unevenness surface profile to the surface of the electrophotographic photosensitive member, wherein;
-
6. A process for producing an electrophotographic photosensitive member having a unevenness profile on the surface thereof, comprising a cylindrical support and a charge transport layer provided thereon, the charge transport layer having a glass transition temperature of T1(°
- C.),
the charge transport layer being formed by coating a solution containing at least a binder resin and a charge-transporting material, and then drying the solution, the process comprising a step of bringing a mold having an unevenness surface profile corresponding to the unevenness profile, and having a temperature of T2(°
C.), into pressure contact with the peripheral surface of an electrophotographic photosensitive member, and rotating at least one of the mold and the electrophotographic photosensitive member to transfer the unevenness surface profile of the mold to the peripheral surface of the electrophotographic photosensitive member;wherein the step is carried out while maintaining the relationship represented by the following inequalities;
T3<
T1<
T2, T6<
T1, T1<
T4, T5<
T4, T4<
T7,where T3(°
C.) represents the temperature of the cylindrical support,T4(°
C.) represents the maximum value of the temperature of the charge transport layer at the part of pressure contact between the surface of the electrophotographic photosensitive member and the mold;T5(°
C.) represents the maximum value of the temperature of the charge transport layer in the step of drying;T6(°
C.) represents the maximum value of the temperature of the charge transport layer at the part other than the part of pressure contact between the surface of the electrophotographic photosensitive member and the mold; andT7 (°
C.) represents the melting point of the charge-transporting material.
- C.),
Specification