Electrophotographic material for color proofing

An electrophotographic material for color proofing which comprises a substrate, a photoconductive layer and a transfer layer in this order, and is used for preparing a color proof in a process wherein at least one color toner image is electrophotographically formed on the transfer layer and then transferred together with said transfer layer to a sheet material to prepare the color proof, wherein said photoconductive layer comprises a polymer (P) selected from the group consisting of the following polymers (P.sub.1), (P.sub.2), (P.sub.3) and (P.sub.4);

• a polymer (Q) selected from the group consisting of the following polymers (Q.sub.1) and (Q.sub.2);
• and a polymer (R) containing at least one unit having photo and/or thermosetting group(s),
• the polymer (P) is present at least in the region near the surface facing said transfer layer,
• the polymer (P) comprises at least one polymer segment (X) containing not less than 50% by weight of units having fluorine atom(s) and/or silicon atom(s) and at least one polymer segment (Y) containing units having photosetting and/or thermosetting group(s), wherein segment (X) is oriented toward the transfer layer and segment (Y) is oriented toward the inside of the photoconductive layer, and
• the surface of said photoconductive layer which contacts with the transfer layer has tack strength of not more than 150 gram.cndot.force, which is measured by Pressure Sensitive Tape and Sheet Test of JIS Z0237-1980,
• the polymer (P.sub.1):
• a linear block copolymer which contains at least one polymer segment (X) containing not less than 50% by weight of units having fluorine atom(s) and/or silicon atom(s) and at least one polymer segment (Y) containing units having photosetting and/or thermosetting group(s);
• the polymer (P.sub.2):
• a star type copolymer which contains at least three AB type block copolymer chains consisting of a polymer segment (X) containing not less than 50% by weight of units having fluorine atom(s) and/or silicon atom(s) and a polymer segment (Y) containing units having photosetting and/or thermosetting group(s), and said block copolymer chains are bonded through an organic group;
• the polymer (P.sub.3):
• a graft copolymer which contains at least one polymer segment (X) containing not less than 50% by weight of units having fluorine atom(s) and/or silicon atom(s) and at least one polymer segment (Y) containing units having photosetting and/or thermosetting group(s);
• the polymer (P.sub.4):
• an AB type or ABA type block copolymer which contains at least one polymer segment (X) containing not less than 50% by weight of units having fluorine atom(s) and/or silicon atom(s) and at least one polymer segment (Y) containing units having photosetting and/or thermosetting group(s), wherein at least one said polymer segment (X) is the following graft type polymer segment (X'), at least one said polymer segment (Y) is the following graft type polymer segment (Y'), or at least one said polymer segment (X) is the following graft type polymer segment (X') and at least one said polymer segment (Y) is the following graft type polymer segment (Y'):
• the graft type polymer segment (X'):
• a polymer segment which has a weight-average molecular weight of 1.times.10.sup.3 .about.2.times.10.sup.4, and contains at least one macromonomer segment (M.sub.A) which contains not less than 50% by weight of units having fluorine atom(s) and/or silicon atom(s);
• the graft type polymer segment (Y'):
• a polymer segment which has a weight-average molecular weight of 1.times.10.sup.3 .about.2.times.10.sup.4, and contains at least one macromonomer segment (M.sub.B) which does not contain units having fluorine atom(s) and/or silicon atom(s);
• the polymer (Q.sub.1):
• a homopolymer or a random copolymer which has a weight-average molecular weight of 1.times.10.sup.3 .about.2.times.10.sup.4 ;
• contains not less than 30% by weight of units represented by the formula I
• --CH(a.sub.1)--C(a.sub.2)(COOR.sub.3)--
• wherein a.sub.1 and a.sub.2 each represents independently a hydrogen atom, a halogen atom, a cyano group or a hydrocarbon group, R.sub.3 represents a hydrocarbon group;
• and contains at least one polar group selected from the group consisting of --PO.sub.3 H.sub.2, --SO.sub.3 H, --COOH, --PO(OH)(R.sub.1) wherein R.sub.1 is a hydrocarbon group or --OR.sub.2 (R.sub.2 is a hydrocarbon group), and a residue of a cyclic anhydride;
• the polymer (Q.sub.2):
• a linear block copolymer which has a weight-average molecular weight of 1.times.10.sup.3 .about.2.times.10.sup.4 ;
• and contains at least one segment (M) containing not less than 30% by weight of units of said formula I and at least one segment (N) having at least one polar group selected from the group consisting of --PO.sub.3 H.sub.2, --SO.sub.3 H, --COOH, --PO(OH)(R.sub.1) wherein R.sub.1 is a hydrocarbon group or --OR.sub.2 (R.sub.2 is a hydrocarbon group), and a residue of a cyclic anhydride.