Method of producing electrophotographic photosensitive member, and emulsion for a charge transporting layer

A method of producing an electrophotographic photosensitive member which comprises a support and charge transporting layer formed thereon, comprising the steps of:

• preparing a solution comprising a charge transporting substance, and a resin having a carbonyl group;
• dispersing the solution, and at least one amine compound selected from the group consisting of a compound represented by the following formula (A), a compound represented by the following formula (B), a compound represented by the following formula (C), a compound represented by the following formula (D) and a compound represented by the following formula (E), in a water to prepare emulsion,
• forming a coat by using the emulsion, and
• heating the coat to form the charge transporting layer,
• where, R11 to R13 each independently represents a hydrogen atom, an alkyl group having 1 to 6 carbon atoms, a hydroxyalkyl group having 1 to 3 carbon atoms or a hydroxy group,
• where, R21 to R25 each independently represents a hydrogen atom, an alkyl group having 1 to 6 carbon atoms, a hydroxyalkyl group having 1 to 3 carbon atoms or a hydroxy group,
• m1 is 1 or 2, m2 is an integer selected from 0 to 2,
• X1 represents a divalent group represented by the following formula (BA), X2 represents a divalent group represented by the following formula (BB),
• wherein,
• in the formula (BA),
• R26 and R27 each independently represents a hydrogen atom, a methyl group or an ethyl group,
• n1 represents an integer selected from 1 to 6,
• in the formula (BB),
• R28 and R29 each independently represents a hydrogen atom, a methyl group or an ethyl group,
• n2 represents an integer selected from 1 to 6,
• where, R32, R33, R36 and R37 each independently represents a hydrogen atom, a methyl group, a hydroxy group or an amino group,
• R31 represents a hydrogen atom, an amino group, a hydroxy group or a hydroxyalkyl group having 1 to 3 carbon atoms,
• Y1 represents a nitrogen atom, an oxygen atom or a carbon atom,
• R34 and R35 are absent when Y1 is the oxygen atom,
• R34 is a hydrogen atom, a hydroxy group or an amino group, and R35 is absent when Y1 is the nitrogen atom,
• R34 and R35 is each independently a hydrogen atom, a hydroxy group or an amino group when Y1 is the carbon atom,
• R31 and R34 may be bonded to each other so as to be cyclic,
• where, R41 to R45 each independently represents a hydrogen atom, a methyl group, a methoxy group, an amino group, a dimethylamino group or a hydroxy group,
• where, R51 to R55 each independently represents a hydrogen atom, a methyl group or an ethyl group.

An emulsion for a charge transporting layer in which a solution is dispersed in water,

• wherein the solution comprises a charge transporting substance and a resin having a carbonyl group, and
• the emulsion for a charge transporting layer further comprises at least one amine compound selected from the group consisting of a compound represented by the following formula (A), a compound represented by the following formula (B), a compound represented by the following formula (C), a compound represented by the following formula (D) and a compound represented by the following formula (E),
• where, R11 to R13 each independently represents a hydrogen atom, an alkyl group having 1 to 6 carbon atoms, a hydroxyalkyl group having 1 to 3 carbon atoms or a hydroxy group,
• where, R21 to R25 each independently represents a hydrogen atom, an alkyl group having 1 to 6 carbon atoms, a hydroxyalkyl group having 1 to 3 carbon atoms or a hydroxy group,
• m1 is 1 or 2, m2 is an integer selected from 0 to 2,
• X1 represents a divalent group represented by the following formula (BA), X2 represents a divalent group represented by the following formula (BB),
• wherein,
• in the formula (BA),
• R26 and R27 each independently represents a hydrogen atom, a methyl group or an ethyl group,
• n1 represents an integer selected from 1 to 6,
• in the formula (BB),
• R28 and R29 each independently represents a hydrogen atom, a methyl group or an ethyl group,
• n2 represents an integer selected from 1 to 6,
• where, R32, R33, R36 and R37 each independently represents a hydrogen atom, a methyl group, a hydroxy group or an amino group,
• R31 represents a hydrogen atom, an amino group, a hydroxy group or a hydroxyalkyl group having 1 to 3 carbon atoms,
• Y1 represents a nitrogen atom, an oxygen atom or a carbon atom,
• R34 and R35 are absent when Y1 is the oxygen atom,
• R34 is a hydrogen atom, a hydroxy group or an amino group, and R35 is absent when Y1 is the nitrogen atom,
• R34 and R35 is each independently a hydrogen atom, a hydroxy group or an amino group when Y1 is the carbon atom,
• R31 and R34 may be bonded to each other so as to be cyclic,
• where, R41 to R45 each independently represents a hydrogen atom, a methyl group, a methoxy group, an amino group, a dimethylamino group or a hydroxy group,
• where, R51 to R55 each independently represents a hydrogen atom, a methyl group or an ethyl group.