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METHOD FOR PRODUCING ELECTROPHOTOGRAPHIC PHOTOSENSITIVE MEMBER

  • US 20140212807A1
  • Filed: 01/21/2014
  • Published: 07/31/2014
  • Est. Priority Date: 01/28/2013
  • Status: Active Grant
First Claim
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1. A method for producing an electrophotographic photosensitive member comprising a support, a charge generating layer formed on the support, and a charge transporting layer formed on the charge generating layer, the method comprising:

  • forming a coat for the charge transporting layer using a charge-transporting-layer coating liquid, anddrying the coat to form the charge transporting layer, whereinthe charge transporting layer is a surface layer,the charge-transporting-layer coating liquid comprises;



    ) a charge transporting substance;



    ) at least one resin selected from the group consisting ofa polycarbonate resin having a structural unit represented by the following formula (1A), anda polyester resin having a structural unit represented by the following formula (1B);



    ) an aromatic hydrocarbon solvent; and



    ) a compound having a boiling point under 1 atmosphere higher than that of the (γ

    );

    the charge-transporting-layer coating liquid is free of any polyester resins having a siloxane structure at the end thereof and any polycarbonate resins having a siloxane structure at the end thereof; and

    the (α

    ), the (γ

    ) and the (δ

    ) satisfy the following expression;


    X(g)>

    Y(g)wherein,X(g) represents the solubility of the (α

    ) in 100 g of the (γ

    ) in an environment at 23°

    C. under 1 atmosphere, andY(g) represents the solubility of the (α

    ) in 100 g of the (δ

    ) in an environment at 23°

    C. under 1 atmosphere;

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