JPS63220154A - Electrophotographic sensitive body - Google Patents
Electrophotographic sensitive bodyInfo
- Publication number
- JPS63220154A JPS63220154A JP5480887A JP5480887A JPS63220154A JP S63220154 A JPS63220154 A JP S63220154A JP 5480887 A JP5480887 A JP 5480887A JP 5480887 A JP5480887 A JP 5480887A JP S63220154 A JPS63220154 A JP S63220154A
- Authority
- JP
- Japan
- Prior art keywords
- layer
- charge
- resin
- charge generating
- fatigue
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 229920001400 block copolymer Polymers 0.000 claims abstract description 11
- 229920005604 random copolymer Polymers 0.000 claims abstract description 10
- -1 oxypropylene group Chemical group 0.000 claims abstract description 8
- 125000006353 oxyethylene group Chemical group 0.000 claims abstract description 6
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims abstract description 5
- 108091008695 photoreceptors Proteins 0.000 claims description 36
- 239000000126 substance Substances 0.000 claims description 29
- 230000035945 sensitivity Effects 0.000 abstract description 7
- 239000000463 material Substances 0.000 abstract description 5
- 230000031700 light absorption Effects 0.000 abstract description 4
- 230000015556 catabolic process Effects 0.000 abstract 2
- 238000006731 degradation reaction Methods 0.000 abstract 2
- 230000006798 recombination Effects 0.000 abstract 1
- 239000010410 layer Substances 0.000 description 88
- 239000000049 pigment Substances 0.000 description 34
- 229920005989 resin Polymers 0.000 description 29
- 239000011347 resin Substances 0.000 description 29
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 26
- 238000000576 coating method Methods 0.000 description 25
- 239000011248 coating agent Substances 0.000 description 24
- ZWEHNKRNPOVVGH-UHFFFAOYSA-N 2-Butanone Chemical compound CCC(C)=O ZWEHNKRNPOVVGH-UHFFFAOYSA-N 0.000 description 18
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 13
- 239000011230 binding agent Substances 0.000 description 12
- JHIVVAPYMSGYDF-UHFFFAOYSA-N cyclohexanone Chemical compound O=C1CCCCC1 JHIVVAPYMSGYDF-UHFFFAOYSA-N 0.000 description 12
- 229920002503 polyoxyethylene-polyoxypropylene Polymers 0.000 description 12
- 229920002037 poly(vinyl butyral) polymer Polymers 0.000 description 11
- 230000007423 decrease Effects 0.000 description 10
- 238000000149 argon plasma sintering Methods 0.000 description 8
- 150000001875 compounds Chemical class 0.000 description 8
- 230000000694 effects Effects 0.000 description 7
- 229920001187 thermosetting polymer Polymers 0.000 description 7
- 239000004925 Acrylic resin Substances 0.000 description 6
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 description 6
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 description 6
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 6
- 230000000052 comparative effect Effects 0.000 description 6
- 239000007788 liquid Substances 0.000 description 6
- 229920000728 polyester Polymers 0.000 description 6
- 239000002904 solvent Substances 0.000 description 6
- 239000006185 dispersion Substances 0.000 description 5
- 229920003023 plastic Polymers 0.000 description 5
- 239000000758 substrate Substances 0.000 description 5
- 229920000178 Acrylic resin Polymers 0.000 description 4
- 238000001035 drying Methods 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 239000005011 phenolic resin Substances 0.000 description 4
- IEQIEDJGQAUEQZ-UHFFFAOYSA-N phthalocyanine Chemical compound N1C(N=C2C3=CC=CC=C3C(N=C3C4=CC=CC=C4C(=N4)N3)=N2)=C(C=CC=C2)C2=C1N=C1C2=CC=CC=C2C4=N1 IEQIEDJGQAUEQZ-UHFFFAOYSA-N 0.000 description 4
- 239000000843 powder Substances 0.000 description 4
- 239000002356 single layer Substances 0.000 description 4
- 229920002554 vinyl polymer Polymers 0.000 description 4
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 3
- 229920001577 copolymer Polymers 0.000 description 3
- 239000003822 epoxy resin Substances 0.000 description 3
- 229920006287 phenoxy resin Polymers 0.000 description 3
- 239000013034 phenoxy resin Substances 0.000 description 3
- 229920003227 poly(N-vinyl carbazole) Polymers 0.000 description 3
- 229920000647 polyepoxide Polymers 0.000 description 3
- 229920006267 polyester film Polymers 0.000 description 3
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 3
- 229910052721 tungsten Inorganic materials 0.000 description 3
- 239000012463 white pigment Substances 0.000 description 3
- SCYULBFZEHDVBN-UHFFFAOYSA-N 1,1-Dichloroethane Chemical compound CC(Cl)Cl SCYULBFZEHDVBN-UHFFFAOYSA-N 0.000 description 2
- RYHBNJHYFVUHQT-UHFFFAOYSA-N 1,4-Dioxane Chemical compound C1COCCO1 RYHBNJHYFVUHQT-UHFFFAOYSA-N 0.000 description 2
- PYSRRFNXTXNWCD-UHFFFAOYSA-N 3-(2-phenylethenyl)furan-2,5-dione Chemical compound O=C1OC(=O)C(C=CC=2C=CC=CC=2)=C1 PYSRRFNXTXNWCD-UHFFFAOYSA-N 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 239000001856 Ethyl cellulose Substances 0.000 description 2
- ZZSNKZQZMQGXPY-UHFFFAOYSA-N Ethyl cellulose Chemical compound CCOCC1OC(OC)C(OCC)C(OCC)C1OC1C(O)C(O)C(OC)C(CO)O1 ZZSNKZQZMQGXPY-UHFFFAOYSA-N 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 2
- 229920000877 Melamine resin Polymers 0.000 description 2
- 239000004640 Melamine resin Substances 0.000 description 2
- 239000004952 Polyamide Substances 0.000 description 2
- 239000004793 Polystyrene Substances 0.000 description 2
- 229920001328 Polyvinylidene chloride Polymers 0.000 description 2
- 229920000147 Styrene maleic anhydride Polymers 0.000 description 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- MKYQPGPNVYRMHI-UHFFFAOYSA-N Triphenylethylene Chemical compound C=1C=CC=CC=1C=C(C=1C=CC=CC=1)C1=CC=CC=C1 MKYQPGPNVYRMHI-UHFFFAOYSA-N 0.000 description 2
- 229920002433 Vinyl chloride-vinyl acetate copolymer Polymers 0.000 description 2
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 229920000180 alkyd Polymers 0.000 description 2
- MWPLVEDNUUSJAV-UHFFFAOYSA-N anthracene Chemical compound C1=CC=CC2=CC3=CC=CC=C3C=C21 MWPLVEDNUUSJAV-UHFFFAOYSA-N 0.000 description 2
- IISBACLAFKSPIT-UHFFFAOYSA-N bisphenol A Chemical compound C=1C=C(O)C=CC=1C(C)(C)C1=CC=C(O)C=C1 IISBACLAFKSPIT-UHFFFAOYSA-N 0.000 description 2
- 125000000609 carbazolyl group Chemical group C1(=CC=CC=2C3=CC=CC=C3NC12)* 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 229920002301 cellulose acetate Polymers 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- MVPPADPHJFYWMZ-UHFFFAOYSA-N chlorobenzene Chemical compound ClC1=CC=CC=C1 MVPPADPHJFYWMZ-UHFFFAOYSA-N 0.000 description 2
- 229910052804 chromium Inorganic materials 0.000 description 2
- 239000011651 chromium Substances 0.000 description 2
- 125000003700 epoxy group Chemical group 0.000 description 2
- 229920001249 ethyl cellulose Polymers 0.000 description 2
- 235000019325 ethyl cellulose Nutrition 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 125000004435 hydrogen atom Chemical group [H]* 0.000 description 2
- 239000011810 insulating material Substances 0.000 description 2
- IQPQWNKOIGAROB-UHFFFAOYSA-N isocyanate group Chemical group [N-]=C=O IQPQWNKOIGAROB-UHFFFAOYSA-N 0.000 description 2
- SXQCTESRRZBPHJ-UHFFFAOYSA-M lissamine rhodamine Chemical compound [Na+].C=12C=CC(=[N+](CC)CC)C=C2OC2=CC(N(CC)CC)=CC=C2C=1C1=CC=C(S([O-])(=O)=O)C=C1S([O-])(=O)=O SXQCTESRRZBPHJ-UHFFFAOYSA-M 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 229910052759 nickel Inorganic materials 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Substances [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 239000012860 organic pigment Substances 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920002285 poly(styrene-co-acrylonitrile) Polymers 0.000 description 2
- 229920002647 polyamide Polymers 0.000 description 2
- 239000004417 polycarbonate Substances 0.000 description 2
- 229920000515 polycarbonate Polymers 0.000 description 2
- 229920002223 polystyrene Polymers 0.000 description 2
- 239000004800 polyvinyl chloride Substances 0.000 description 2
- 229920000915 polyvinyl chloride Polymers 0.000 description 2
- 229920002102 polyvinyl toluene Polymers 0.000 description 2
- 239000005033 polyvinylidene chloride Substances 0.000 description 2
- 229920000036 polyvinylpyrrolidone Polymers 0.000 description 2
- 239000001267 polyvinylpyrrolidone Substances 0.000 description 2
- 235000013855 polyvinylpyrrolidone Nutrition 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 229920002050 silicone resin Polymers 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 229920003048 styrene butadiene rubber Polymers 0.000 description 2
- 229920001169 thermoplastic Polymers 0.000 description 2
- 229920002803 thermoplastic polyurethane Polymers 0.000 description 2
- 239000004416 thermosoftening plastic Substances 0.000 description 2
- XOLBLPGZBRYERU-UHFFFAOYSA-N tin dioxide Chemical compound O=[Sn]=O XOLBLPGZBRYERU-UHFFFAOYSA-N 0.000 description 2
- 229910001887 tin oxide Inorganic materials 0.000 description 2
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 2
- DVKJHBMWWAPEIU-UHFFFAOYSA-N toluene 2,4-diisocyanate Chemical compound CC1=CC=C(N=C=O)C=C1N=C=O DVKJHBMWWAPEIU-UHFFFAOYSA-N 0.000 description 2
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 2
- 239000010937 tungsten Substances 0.000 description 2
- 239000011701 zinc Substances 0.000 description 2
- 229910052725 zinc Inorganic materials 0.000 description 2
- OCJBOOLMMGQPQU-UHFFFAOYSA-N 1,4-dichlorobenzene Chemical compound ClC1=CC=C(Cl)C=C1 OCJBOOLMMGQPQU-UHFFFAOYSA-N 0.000 description 1
- VERMWGQSKPXSPZ-BUHFOSPRSA-N 1-[(e)-2-phenylethenyl]anthracene Chemical compound C=1C=CC2=CC3=CC=CC=C3C=C2C=1\C=C\C1=CC=CC=C1 VERMWGQSKPXSPZ-BUHFOSPRSA-N 0.000 description 1
- XNWFRZJHXBZDAG-UHFFFAOYSA-N 2-METHOXYETHANOL Chemical compound COCCO XNWFRZJHXBZDAG-UHFFFAOYSA-N 0.000 description 1
- ZNQVEEAIQZEUHB-UHFFFAOYSA-N 2-ethoxyethanol Chemical compound CCOCCO ZNQVEEAIQZEUHB-UHFFFAOYSA-N 0.000 description 1
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 description 1
- UPMLOUAZCHDJJD-UHFFFAOYSA-N 4,4'-Diphenylmethane Diisocyanate Chemical compound C1=CC(N=C=O)=CC=C1CC1=CC=C(N=C=O)C=C1 UPMLOUAZCHDJJD-UHFFFAOYSA-N 0.000 description 1
- 241000972773 Aulopiformes Species 0.000 description 1
- DKPFZGUDAPQIHT-UHFFFAOYSA-N Butyl acetate Natural products CCCCOC(C)=O DKPFZGUDAPQIHT-UHFFFAOYSA-N 0.000 description 1
- 239000005057 Hexamethylene diisocyanate Substances 0.000 description 1
- WOBHKFSMXKNTIM-UHFFFAOYSA-N Hydroxyethyl methacrylate Chemical group CC(=C)C(=O)OCCO WOBHKFSMXKNTIM-UHFFFAOYSA-N 0.000 description 1
- 235000000177 Indigofera tinctoria Nutrition 0.000 description 1
- WHUUTDBJXJRKMK-VKHMYHEASA-N L-glutamic acid Chemical compound OC(=O)[C@@H](N)CCC(O)=O WHUUTDBJXJRKMK-VKHMYHEASA-N 0.000 description 1
- AFCARXCZXQIEQB-UHFFFAOYSA-N N-[3-oxo-3-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)propyl]-2-[[3-(trifluoromethoxy)phenyl]methylamino]pyrimidine-5-carboxamide Chemical compound O=C(CCNC(=O)C=1C=NC(=NC=1)NCC1=CC(=CC=C1)OC(F)(F)F)N1CC2=C(CC1)NN=N2 AFCARXCZXQIEQB-UHFFFAOYSA-N 0.000 description 1
- 239000004677 Nylon Substances 0.000 description 1
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 1
- 239000002202 Polyethylene glycol Substances 0.000 description 1
- 239000004642 Polyimide Substances 0.000 description 1
- RCTGMCJBQGBLKT-UHFFFAOYSA-N Sudan IV Chemical compound CC1=CC=CC=C1N=NC(C=C1C)=CC=C1N=NC1=C(O)C=CC2=CC=CC=C12 RCTGMCJBQGBLKT-UHFFFAOYSA-N 0.000 description 1
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 description 1
- 239000005083 Zinc sulfide Substances 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 229910000410 antimony oxide Inorganic materials 0.000 description 1
- 239000003963 antioxidant agent Substances 0.000 description 1
- 230000003078 antioxidant effect Effects 0.000 description 1
- 235000006708 antioxidants Nutrition 0.000 description 1
- 230000002238 attenuated effect Effects 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 229920002678 cellulose Polymers 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- MRQIXHXHHPWVIL-UHFFFAOYSA-N chembl1397023 Chemical compound OC1=CC=C2C=CC=CC2=C1N=NC1=CC=CC=C1 MRQIXHXHHPWVIL-UHFFFAOYSA-N 0.000 description 1
- 238000004581 coalescence Methods 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 125000000664 diazo group Chemical group [N-]=[N+]=[*] 0.000 description 1
- IYYZUPMFVPLQIF-ALWQSETLSA-N dibenzothiophene Chemical group C1=CC=CC=2[34S]C3=C(C=21)C=CC=C3 IYYZUPMFVPLQIF-ALWQSETLSA-N 0.000 description 1
- 229940117389 dichlorobenzene Drugs 0.000 description 1
- 235000014113 dietary fatty acids Nutrition 0.000 description 1
- 239000003925 fat Substances 0.000 description 1
- 239000000194 fatty acid Substances 0.000 description 1
- 229930195729 fatty acid Natural products 0.000 description 1
- 150000004665 fatty acids Chemical class 0.000 description 1
- YLQWCDOCJODRMT-UHFFFAOYSA-N fluoren-9-one Chemical group C1=CC=C2C(=O)C3=CC=CC=C3C2=C1 YLQWCDOCJODRMT-UHFFFAOYSA-N 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 229930195712 glutamate Natural products 0.000 description 1
- LNEPOXFFQSENCJ-UHFFFAOYSA-N haloperidol Chemical compound C1CC(O)(C=2C=CC(Cl)=CC=2)CCN1CCCC(=O)C1=CC=C(F)C=C1 LNEPOXFFQSENCJ-UHFFFAOYSA-N 0.000 description 1
- RRAMGCGOFNQTLD-UHFFFAOYSA-N hexamethylene diisocyanate Chemical compound O=C=NCCCCCCN=C=O RRAMGCGOFNQTLD-UHFFFAOYSA-N 0.000 description 1
- FUZZWVXGSFPDMH-UHFFFAOYSA-N hexanoic acid Chemical compound CCCCCC(O)=O FUZZWVXGSFPDMH-UHFFFAOYSA-N 0.000 description 1
- 150000002460 imidazoles Chemical class 0.000 description 1
- 229940097275 indigo Drugs 0.000 description 1
- COHYTHOBJLSHDF-UHFFFAOYSA-N indigo powder Natural products N1C2=CC=CC=C2C(=O)C1=C1C(=O)C2=CC=CC=C2N1 COHYTHOBJLSHDF-UHFFFAOYSA-N 0.000 description 1
- PJXISJQVUVHSOJ-UHFFFAOYSA-N indium(III) oxide Inorganic materials [O-2].[O-2].[O-2].[In+3].[In+3] PJXISJQVUVHSOJ-UHFFFAOYSA-N 0.000 description 1
- 229940079865 intestinal antiinfectives imidazole derivative Drugs 0.000 description 1
- 210000003127 knee Anatomy 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- GACNTLAEHODJKY-UHFFFAOYSA-N n,n-dibenzyl-4-[1-[4-(dibenzylamino)phenyl]propyl]aniline Chemical compound C=1C=C(N(CC=2C=CC=CC=2)CC=2C=CC=CC=2)C=CC=1C(CC)C(C=C1)=CC=C1N(CC=1C=CC=CC=1)CC1=CC=CC=C1 GACNTLAEHODJKY-UHFFFAOYSA-N 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- WCPAKWJPBJAGKN-UHFFFAOYSA-N oxadiazole Chemical group C1=CON=N1 WCPAKWJPBJAGKN-UHFFFAOYSA-N 0.000 description 1
- 150000004866 oxadiazoles Chemical class 0.000 description 1
- 150000007978 oxazole derivatives Chemical class 0.000 description 1
- VTRUBDSFZJNXHI-UHFFFAOYSA-N oxoantimony Chemical compound [Sb]=O VTRUBDSFZJNXHI-UHFFFAOYSA-N 0.000 description 1
- 125000002080 perylenyl group Chemical group C1(=CC=C2C=CC=C3C4=CC=CC5=CC=CC(C1=C23)=C45)* 0.000 description 1
- CSHWQDPOILHKBI-UHFFFAOYSA-N peryrene Natural products C1=CC(C2=CC=CC=3C2=C2C=CC=3)=C3C2=CC=CC3=C1 CSHWQDPOILHKBI-UHFFFAOYSA-N 0.000 description 1
- 229920001568 phenolic resin Polymers 0.000 description 1
- 239000004014 plasticizer Substances 0.000 description 1
- 229920001748 polybutylene Polymers 0.000 description 1
- 229920001223 polyethylene glycol Polymers 0.000 description 1
- 229920001721 polyimide Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 230000000379 polymerizing effect Effects 0.000 description 1
- 229920001451 polypropylene glycol Polymers 0.000 description 1
- 229920002689 polyvinyl acetate Polymers 0.000 description 1
- 239000011118 polyvinyl acetate Substances 0.000 description 1
- 150000004032 porphyrins Chemical group 0.000 description 1
- RCYFOPUXRMOLQM-UHFFFAOYSA-N pyrene-1-carbaldehyde Chemical compound C1=C2C(C=O)=CC=C(C=C3)C2=C2C3=CC=CC2=C1 RCYFOPUXRMOLQM-UHFFFAOYSA-N 0.000 description 1
- 235000019515 salmon Nutrition 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000007592 spray painting technique Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000004544 sputter deposition Methods 0.000 description 1
- 238000012719 thermal polymerization Methods 0.000 description 1
- FDGZUBKNYGBWHI-UHFFFAOYSA-N trioctadecyl phosphate Chemical compound CCCCCCCCCCCCCCCCCCOP(=O)(OCCCCCCCCCCCCCCCCCC)OCCCCCCCCCCCCCCCCCC FDGZUBKNYGBWHI-UHFFFAOYSA-N 0.000 description 1
- 150000001651 triphenylamine derivatives Chemical class 0.000 description 1
- 125000006617 triphenylamine group Chemical group 0.000 description 1
- 238000007740 vapor deposition Methods 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
- 230000002747 voluntary effect Effects 0.000 description 1
- 239000008096 xylene Substances 0.000 description 1
- 239000011787 zinc oxide Substances 0.000 description 1
- 229910052984 zinc sulfide Inorganic materials 0.000 description 1
- DRDVZXDWVBGGMH-UHFFFAOYSA-N zinc;sulfide Chemical compound [S-2].[Zn+2] DRDVZXDWVBGGMH-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G5/00—Recording members for original recording by exposure, e.g. to light, to heat, to electrons; Manufacture thereof; Selection of materials therefor
- G03G5/02—Charge-receiving layers
- G03G5/04—Photoconductive layers; Charge-generation layers or charge-transporting layers; Additives therefor; Binders therefor
- G03G5/05—Organic bonding materials; Methods for coating a substrate with a photoconductive layer; Inert supplements for use in photoconductive layers
- G03G5/0528—Macromolecular bonding materials
- G03G5/0592—Macromolecular compounds characterised by their structure or by their chemical properties, e.g. block polymers, reticulated polymers, molecular weight, acidity
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G5/00—Recording members for original recording by exposure, e.g. to light, to heat, to electrons; Manufacture thereof; Selection of materials therefor
- G03G5/02—Charge-receiving layers
- G03G5/04—Photoconductive layers; Charge-generation layers or charge-transporting layers; Additives therefor; Binders therefor
- G03G5/043—Photoconductive layers characterised by having two or more layers or characterised by their composite structure
- G03G5/047—Photoconductive layers characterised by having two or more layers or characterised by their composite structure characterised by the charge-generation layers or charge transport layers
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G5/00—Recording members for original recording by exposure, e.g. to light, to heat, to electrons; Manufacture thereof; Selection of materials therefor
- G03G5/02—Charge-receiving layers
- G03G5/04—Photoconductive layers; Charge-generation layers or charge-transporting layers; Additives therefor; Binders therefor
- G03G5/05—Organic bonding materials; Methods for coating a substrate with a photoconductive layer; Inert supplements for use in photoconductive layers
- G03G5/0528—Macromolecular bonding materials
- G03G5/0557—Macromolecular bonding materials obtained otherwise than by reactions only involving carbon-to-carbon unsatured bonds
- G03G5/0567—Other polycondensates comprising oxygen atoms in the main chain; Phenol resins
Landscapes
- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- General Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Photoreceptors In Electrophotography (AREA)
Abstract
Description
【発明の詳細な説明】
〔技術分野〕
本発明は、電荷発生物質を分散した層を有する電子写真
用感光体の改良に関する。DETAILED DESCRIPTION OF THE INVENTION [Technical Field] The present invention relates to an improvement in an electrophotographic photoreceptor having a layer in which a charge generating substance is dispersed.
従来より、電荷発生物質と共に各種の樹脂を配合させた
電荷発生層を設けた電子写真用感光体は知られている。2. Description of the Related Art Electrophotographic photoreceptors have been known that are provided with a charge generation layer containing a charge generation substance and various resins.
このような例としては、ポリビニルブチラール(特開昭
58−105154号)、脂肪酸セルロースエステル(
特開昭58−166353号)、Tgが70℃以下で酸
価数10〜40のアクリル樹脂(特開昭58−1920
40号)、 Tgが70℃以下の樹脂と、 rgが75
℃以上の樹脂を混合したもの(特開昭58−19354
9号)、電荷発生物質−樹脂−溶剤の系に相溶性のより
低い樹脂−溶剤系を加えて再分散したもの(特開昭56
−12646号)、ポリビニルピロリドン(特開昭56
−113140号)、ポリビニルホルマール樹脂(特開
昭61−235844号)等の樹脂を用いたものが挙げ
られる。Examples of this include polyvinyl butyral (Japanese Patent Application Laid-open No. 58-105154), fatty acid cellulose ester (
JP-A No. 58-166353), acrylic resin with Tg of 70°C or less and an acid value of 10 to 40 (JP-A No. 58-1920)
No. 40), resin with Tg of 70°C or less, and rg of 75
A mixture of resins with a temperature of ℃ or above
No. 9), which is redispersed by adding a less compatible resin-solvent system to the charge-generating substance-resin-solvent system (Japanese Patent Laid-Open No. 56
-12646), polyvinylpyrrolidone (Unexamined Japanese Patent Publication No. 12646), polyvinylpyrrolidone
-113140), polyvinyl formal resin (Japanese Patent Application Laid-Open No. 61-235844).
しかしながら、従来公知の感光体にあっては、電荷発生
物質とバインダー樹脂の混合比によって感度と前露光疲
労に対する帯電性が異なるという問題があった。However, conventionally known photoreceptors have a problem in that sensitivity and chargeability against pre-exposure fatigue vary depending on the mixing ratio of the charge generating substance and the binder resin.
即ち、従来の感光体は電荷発生物質に対するバインダー
樹脂の使用量を少くすると感度を増大することができる
が、前露光疲労に対する帯電性の低下が著しくなり、逆
に電荷発生物質に対するバインダー樹脂の使用量を多く
すると前露光疲労に対する帯電性の低下を抑制できるが
、感度が著しく低下するという問題点を包含する。In other words, in conventional photoreceptors, sensitivity can be increased by reducing the amount of binder resin used for the charge-generating substance, but the chargeability deteriorates significantly due to pre-exposure fatigue, and conversely, the use of binder resin for the charge-generating substance If the amount is increased, it is possible to suppress a decrease in chargeability due to pre-exposure fatigue, but this includes the problem of a significant decrease in sensitivity.
また、従来の感光体は帯電と露光の繰り返しにおいて帯
電電位の低下が著しいという欠点も有している。Furthermore, conventional photoreceptors also have the disadvantage that the charging potential decreases significantly when charging and exposure are repeated.
本発明は、高感度であるとともに前露光疲労による帯電
性の低下が著しく小さく、シかも帯電と露光の繰り返し
においても帯電電位が低下しない電子写真用感光体を提
供することを目的とする。SUMMARY OF THE INVENTION An object of the present invention is to provide an electrophotographic photoreceptor that is highly sensitive, exhibits significantly less decrease in chargeability due to pre-exposure fatigue, and does not exhibit a decrease in charging potential even after repeated charging and exposure.
本発明によれば、導電性支持体上に電荷発生物質を分散
した層を少なくとも有する電子写真用感光体において、
電荷発生物質を分散した層がオキシエチレン基とオキシ
プロピレン基とを有し、かつ分子の末端が水酸基である
ランダム共重合体又はブロック共重合体を含有すること
を特徴とする電子写真用感光体が提供される。According to the present invention, in an electrophotographic photoreceptor having at least a layer in which a charge generating substance is dispersed on a conductive support,
An electrophotographic photoreceptor characterized in that the layer in which a charge generating substance is dispersed contains a random copolymer or a block copolymer having an oxyethylene group and an oxypropylene group, and a hydroxyl group at the end of the molecule. is provided.
本発明の電子写真用感光体は、電荷発生物質を分散した
層に前記ランダム共重合体又はブロック共重合体を含有
させたことから、高感度であるとともに前露光疲労によ
る帯電性の低下が著しく小さく、しかも帯電と露光の繰
り返しにおいても帯電電位が低下しないという顕著な作
用効果を奏する。Since the electrophotographic photoreceptor of the present invention contains the random copolymer or block copolymer in the layer in which a charge generating substance is dispersed, it has high sensitivity and significantly reduces chargeability due to pre-exposure fatigue. It is small and has a remarkable effect that the charging potential does not decrease even after repeated charging and exposure.
一般に、高感度の感光体は前露光疲労によって帯電性が
低下する。この前露光疲労は光吸収によって発生した電
荷が、移動可能な状態で感光体に残留している時間が長
いほど、またその電荷数が多いほど、前露光疲労による
帯電性の低下が著しくなる。即ち、光吸収によって発生
した電荷が残留している状態で帯電操作をしても残留す
るキャリヤの移動で表面電荷が中和されるため、残留電
位が消費されるまで表面電位は上昇しない、したがって
、前露光疲労弁だけ表面電位の上昇が遅くなり、見かけ
上の帯電電位が低くなるわけである。Generally, high-sensitivity photoreceptors have reduced chargeability due to pre-exposure fatigue. The longer the charge generated by light absorption remains on the photoreceptor in a movable state, and the greater the number of charges, the more significant the reduction in chargeability due to pre-exposure fatigue becomes. In other words, even if a charging operation is performed while the charge generated by light absorption remains, the surface charge will be neutralized by the movement of the remaining carriers, so the surface potential will not rise until the residual potential is consumed. , the rise in surface potential is slower in the pre-exposure fatigue valve, and the apparent charged potential becomes lower.
本発明者らは、この点を改良すべく鋭意検討した結果、
電荷発生物質を分散した層にオキシエチレン基とオキシ
プロピレン基とを有し、かつ分子の末端が水酸基である
ランダム共重合体又はブロック共重合体を含有させると
上記欠点が解消されることを見い出し1本発明を完成す
るに到った。As a result of intensive study to improve this point, the present inventors found that
It has been found that the above drawbacks can be overcome by incorporating a random copolymer or a block copolymer having oxyethylene groups and oxypropylene groups and a hydroxyl group at the end of the molecule into the layer in which a charge generating substance is dispersed. 1. The present invention has been completed.
本発明がこのような顕著な作用効果を有する理由は現地
点では必ずしも明らかでないが、電荷発生物質に上記ラ
ンダム共重合体又はブロック共重合体が化学吸着し、光
吸収によって発生した電荷の再結合中心となるため、前
露光疲労で発生した電荷が速やかに再結合し、その電荷
を消失することによって感光体の帯電電位の低下が抑制
されることに帰因するものと思われる。The reason why the present invention has such remarkable effects is not necessarily clear at the moment, but the reason is that the random copolymer or block copolymer is chemically adsorbed onto the charge generating substance, and the charges generated by light absorption are recombined. This is thought to be due to the fact that the charge generated due to pre-exposure fatigue quickly recombines and disappears, thereby suppressing a decrease in the charged potential of the photoreceptor.
更に、前記のような前露光疲労に対する効果は。Furthermore, the effect on pre-exposure fatigue as mentioned above.
帯電と露光を繰り返す実際の使用時においても同様に発
現するため、本発明に係る電子写真用感光体は、従来の
ものと比較して、帯電と露光との繰り返しにおいても、
帯電電位の低下が著しく小さいものである。The electrophotographic photoreceptor according to the present invention also exhibits similar effects during actual use when charging and exposure are repeated, so compared to conventional photoreceptors, the electrophotographic photoreceptor according to the present invention exhibits the same effect even when charging and exposure are repeated.
The decrease in charging potential is extremely small.
以下、添付図面に沿って本発明をさらに詳細に説明する
。Hereinafter, the present invention will be described in more detail with reference to the accompanying drawings.
第1図−第4図は本発明の電子写真用感光体の代表的な
層構成を説明する図面である。1 to 4 are drawings illustrating typical layer structures of the electrophotographic photoreceptor of the present invention.
第1図は、導電性支持体3上に、電荷発生層1および電
荷移動層2が順次積層されたものであり、第2図は第1
図の電荷発生層1と電荷移動層2の積層順位を逆にした
ものであり、電荷発生層1の形成は、電荷移動層2を乱
さない様な塗工方法例えばスプレー塗工法等が採用され
る。FIG. 1 shows a structure in which a charge generation layer 1 and a charge transfer layer 2 are sequentially laminated on a conductive support 3, and FIG.
The stacking order of the charge generation layer 1 and the charge transfer layer 2 in the figure is reversed, and the charge generation layer 1 is formed by a coating method such as a spray coating method that does not disturb the charge transfer layer 2. Ru.
第3図は第1図〜第2図の積層型感光層とは異なり。FIG. 3 is different from the laminated photosensitive layer shown in FIGS. 1 and 2.
電荷発生機能と電荷移動機能を1つの層に持たせた単層
型感光層からなる感光体を示すものである。This shows a photoreceptor consisting of a single-layer type photosensitive layer in which one layer has a charge generation function and a charge transfer function.
第4図は、第1図において、導電性支持体3と電荷発生
層1との間に下引層5を設けたものである。In FIG. 4, a subbing layer 5 is provided between the conductive support 3 and the charge generation layer 1 in FIG. 1.
このような下引層5は第2図及び第3図の構成のものに
おいても同様に適用することができる。Such an undercoat layer 5 can be similarly applied to the structures shown in FIGS. 2 and 3.
下引層はレーザープリンター用感光体における光干渉防
止を目的とする場合は、光散乱性下引層又は光吸収性下
引層が用いられ、接着性・可撓性を目的とする場合は接
着性の良好なポリアミド、ポリエステル、塩化ビニル−
酢酸ビニル共重合体、ポリビニルブチラール等の樹脂下
引層が用いられる。When the purpose of the undercoat layer is to prevent light interference in the photoreceptor for laser printers, a light-scattering undercoat layer or a light-absorbing undercoat layer is used, and when the purpose is adhesiveness and flexibility, an adhesive is used. Polyamide, polyester, vinyl chloride with good properties
A resin undercoat layer such as vinyl acetate copolymer or polyvinyl butyral is used.
つぎに、本発明で用いられる各構成材料について説明す
る。Next, each constituent material used in the present invention will be explained.
導電性支持体とは、帯電電荷と逆極性の電荷を基体側に
供給することを目的とするものであって。The purpose of the conductive support is to supply charges of opposite polarity to the charged charges to the substrate side.
電気抵抗が101ΩCm以下で、かつ電荷発生層、電荷
移動層更には下引層の成膜条件に耐えられるものを使用
することができる。これらの例としては。It is possible to use a material that has an electrical resistance of 101 ΩCm or less and can withstand the conditions for forming the charge generation layer, the charge transfer layer, and the undercoat layer. Examples of these are:
Afl 、 Ni、Cr、 Zn、ステンレス等の電気
伝導性の金属および合金並びにガラス、セラミックス等
の無機絶縁物質およびポリエステル、ポリイミド、フェ
ノール樹脂、ナイロン樹脂、紙等の有機絶縁性物質の表
面を、真空蒸着、スパッタリング、吹付塗装等の方法に
よって、 AQ 、 Ni、Cr、 Zn、ステンレス
、炭素、 5nOs、 In2O3等の電気導電性物質
を被服して導電処理を行なったもの等があげられる。The surfaces of electrically conductive metals and alloys such as Afl, Ni, Cr, Zn, and stainless steel, inorganic insulating materials such as glass and ceramics, and organic insulating materials such as polyester, polyimide, phenolic resin, nylon resin, and paper are vacuum-treated. Examples include those coated with an electrically conductive substance such as AQ, Ni, Cr, Zn, stainless steel, carbon, 5nOs, In2O3, etc., and subjected to conductive treatment by methods such as vapor deposition, sputtering, and spray painting.
電荷発生物質を分散した層は、第1図、第2図及び第4
図のように積層型感光層にあっては、電荷発生層として
構成され、また、第3図のような単層型感光層において
は、該感光層内に形成される。The layers in which the charge generating substance is dispersed are shown in FIGS. 1, 2 and 4.
In a laminated type photosensitive layer as shown in the figure, it is constituted as a charge generation layer, and in a single layer type photosensitive layer as shown in Fig. 3, it is formed within the photosensitive layer.
また、積層型感光層においては、電荷発生層は、電荷発
生物質と樹脂バインダーから構成される。Further, in the laminated photosensitive layer, the charge generation layer is composed of a charge generation substance and a resin binder.
本発明においては、該樹脂バインダーとしてオキシエチ
レン基とオキシプロピレン基とを有し、゛かつ分子の末
端が水酸基であるランダム重合体又はブロック共重合体
を用いる。In the present invention, a random polymer or block copolymer having an oxyethylene group and an oxypropylene group and having a hydroxyl group at the end of the molecule is used as the resin binder.
このような共重合体は、従来より公知のものであり、本
発明においては種々の市販されているものを用いること
ができるが、分子量200〜50万、好ましくは500
〜5万であり、オキシエチレン基の平均付加モル数0.
1モルト99.9モル算、好ましくは5モル%〜90モ
ル算のものを用いることが好ましい。Such copolymers are conventionally known, and various commercially available copolymers can be used in the present invention, but those with a molecular weight of 200 to 500,000, preferably 500,000
~50,000, and the average number of added moles of oxyethylene group is 0.
It is preferable to use one having an amount of 99.9 moles per mol, preferably 5 mol% to 90 mols.
このようなランダム共重合体又はブロック共重合体の具
体的としては、三洋化成■製ニューポール;PE−61
、PE−62、PH−64,PH−68、PH−71,
PH−74,PH−75,PE−78,PE−85、P
R−88,PH−108、PH−2700;ニューポー
ル75f(−90000;fi電化工業■製のプルロニ
ックムシリーズ、Pシリーズ、Fシリーズ:第一工業製
薬■製のエバンシリーズ:日本油脂(11製のプロノン
102,104.105.201.204.208等が
挙げられる。Specific examples of such random copolymers or block copolymers include Newpol; PE-61 manufactured by Sanyo Chemical Co., Ltd.;
, PE-62, PH-64, PH-68, PH-71,
PH-74, PH-75, PE-78, PE-85, P
R-88, PH-108, PH-2700; Newport 75f (-90000; Pluronicum series, P series, F series manufactured by fi Denka Kogyo ■; Evan series manufactured by Daiichi Kogyo Seiyaku ■; Nippon Oil & Fats (manufactured by 11) Examples include pronone 102, 104.105.201.204.208.
また、本発明の電荷発生物質を分散した層は、樹脂バイ
ンダーとして、前記ポリオキシエチレンポリオキシプロ
ピレングリコールを含むものであるが、必要に応じこの
種の電荷発生層に用いられる他の樹脂バインダーを併用
することもできる。Further, the layer in which the charge generating substance of the present invention is dispersed contains the polyoxyethylene polyoxypropylene glycol as a resin binder, but if necessary, other resin binders used in this type of charge generating layer may be used in combination. You can also do that.
このような樹脂バインダーとしては、ポリスチレン、ス
チレン−アクリロニトリル共重合体、スチレン−ブタジ
ェン共重合体、スチレン−無水マレイン酸共重合体、ポ
リエステル、ポリ塩化ビニル、塩化ビニル−酢酸ビニル
共重合体、ポリ酢酸ビニル、ポリ塩化ビニリデン、ポリ
アクリレート樹脂、フェノキシ樹脂、ポリカーボネート
、酢酸セルロース樹脂、エチルセルロース樹脂、ポリビ
ニルブチラール、ポリビニルホルマール、ポリビニルト
ルエン、ポリ−N−ビニルカルバゾール、アクリル樹脂
、シリコン樹脂、エポキシ樹脂、メラミン樹脂、ウレタ
ン樹脂、フェノール樹脂、アルキッド樹脂等の熱可塑性
または熱硬化性樹脂が挙げられる。Examples of such resin binders include polystyrene, styrene-acrylonitrile copolymer, styrene-butadiene copolymer, styrene-maleic anhydride copolymer, polyester, polyvinyl chloride, vinyl chloride-vinyl acetate copolymer, and polyacetic acid. Vinyl, polyvinylidene chloride, polyacrylate resin, phenoxy resin, polycarbonate, cellulose acetate resin, ethyl cellulose resin, polyvinyl butyral, polyvinyl formal, polyvinyl toluene, poly-N-vinyl carbazole, acrylic resin, silicone resin, epoxy resin, melamine resin, Examples include thermoplastic or thermosetting resins such as urethane resins, phenol resins, and alkyd resins.
バインダー樹脂は、その総量として電荷発生物質100
重量部に対して0.01〜200重量部用いるのが適当
であり、好ましくは1〜50重量部である。また。The total amount of the binder resin is 100% of the charge generating substance.
It is appropriate to use 0.01 to 200 parts by weight, preferably 1 to 50 parts by weight. Also.
前記ポリオキシエチレンポリオキシプロピレングリコー
ルは電荷発生物質100重量部に対して少なくとも0.
01重量部、好ましくは1重量部以上含有とせることが
必要である。The polyoxyethylene polyoxypropylene glycol is used in an amount of at least 0.0% based on 100 parts by weight of the charge generating material.
01 parts by weight, preferably 1 part by weight or more.
電荷発生物質としては1例えば、シーアイピグメントブ
ルー25(カラーインデックス(CI)21180)。Examples of charge-generating substances include C.I. Pigment Blue 25 (Color Index (CI) 21180).
シーアイピグメントレッド41(CI 21200)、
シーアイアシッドレッド52(CI 45100)、シ
ーアイベーシックレッド3(CI 45210)、さら
に、ポリフィリン骨格を有するフタロシアニン系顔料、
アズレニウム塩顔料、スクアリック塩顔料、カルバゾー
ル骨格を有するアゾ顔料(特開昭53−95033号公
報に記載)、スチルスチルベン骨格を有するアゾ顔料(
特開昭53−138229号公報に記載)、トリフェニ
ルアミン骨格を有するアゾ顔料(特開昭53−1325
47号公報に記載)、ジベンゾチオフェン骨格を有する
アゾ顔料(特開昭54−21728号公報に記載)、オ
キサジアゾール骨格を有するアゾ顔料(特開昭54−1
2742号公報に記載)、フルオレノン骨格を有するア
ゾ顔料(特開昭54−22834号公報に記載)、ビス
スチルベン骨格を有するアゾ顔料(特開昭54−177
33号公報に記載)、ジスチリルオキサジアゾール骨格
を有するアゾ顔料(特開昭54−2129号公報に記載
)、ジスチリルカルバゾール骨格を有するアゾ顔料(特
開昭54−17734号公報に記載)、カルバゾール骨
格を有するトリアゾ顔料(特開昭57−195767号
公報。CI Pigment Red 41 (CI 21200),
C.I. Acid Red 52 (CI 45100), C.I. Basic Red 3 (CI 45210), and a phthalocyanine pigment having a porphyrin skeleton,
Azulenium salt pigments, squalic salt pigments, azo pigments with a carbazole skeleton (described in JP-A-53-95033), azo pigments with a stilstilbene skeleton (
(described in JP-A No. 53-138229), azo pigments having a triphenylamine skeleton (described in JP-A-53-1325)
47), azo pigments having a dibenzothiophene skeleton (described in JP-A No. 54-21728), azo pigments having an oxadiazole skeleton (described in JP-A-54-1
2742), azo pigments having a fluorenone skeleton (described in JP-A-54-22834), azo pigments having a bisstilbene skeleton (described in JP-A-54-177)
33), an azo pigment having a distyryloxadiazole skeleton (described in JP-A No. 54-2129), an azo pigment having a distyrylcarbazole skeleton (described in JP-A-54-17734) , a triazo pigment having a carbazole skeleton (JP-A-57-195767).
同57−195768号公報に記載)等、さらに、シー
アイピグメントブルー16(CI 74100)等のフ
タロシアニン系顔料、シーアイバットブラウン5(CI
73410)、シーアイパットダイ(CI 7303
0)等のインジゴ系顔料、アルゴスカーレットB(バイ
オレット社製)。57-195768), phthalocyanine pigments such as CI Pigment Blue 16 (CI 74100), CI Bat Brown 5 (CI
73410), CI 7303
0) and other indigo pigments, Argo Scarlet B (manufactured by Violet Co., Ltd.).
インダスランスカーレットR(バイエル社製)等のペリ
レン系顔料等の有機顔料を使用することができる。Organic pigments such as perylene pigments such as Indus Lance Scarlet R (manufactured by Bayer AG) can be used.
これら電荷発生物質の中でも特にアゾ顔料が好適であり
、更にアゾ顔料の中でも以下に示すジスアゾ顔料あるい
はトリスアゾ顔料が最も好ましい。Among these charge-generating substances, azo pigments are particularly preferred, and among azo pigments, disazo pigments and trisazo pigments shown below are most preferred.
アゾ顔料の具体例を以下に示す。Specific examples of azo pigments are shown below.
jLLI!IQ −一」シーー顔J
L服 −一一八−−一級且長
−一コし一−
IL!u!Q−−コしm−
顔J1大 −i
顔JLk −−コmlLMk
−一コし一−jLII!kl−−コm
1且皇 −−コm
鮭■長 −−コしm−
1且長 −−コm
1且長 −i
1且l −一」し−一顔」1隈
−−コm
顔1瞥 −−コm
flLMk −一」し−一糺肛−NQ
−一」し−一顔41ぬ
−一一へ一一一顔]1驚 −6
−
電荷発生層1の膜厚は、0.05〜2μ麿程度が適当で
あり、好ましくは0.1〜1μ閣である。jLLI! IQ-1” Sea face J
L uniform -118--1st grade and length
-Ikoshiichi- IL! u! Q--Koshim- Face J1 Large -i Face JLk --KomlLMk
-Ikoshiichi-jLII! kl--kom 1 and emperor--com salmon ■ long -- koshi m- 1 and long -- ko m 1 and long -i 1 and l -1"shi-ichi face" 1 square
--Kom A glimpse of the face --Kom flLMk
-1"shi-1 face 41nu
-111 face] 1 surprise -6
- The thickness of the charge generation layer 1 is suitably about 0.05 to 2 μm, preferably 0.1 to 1 μm.
電荷発生層lは、適当な溶剤に樹脂バインダーおよび電
荷発生物質を溶解ないし分散し、これを塗布、乾燥する
ことによって形成できる。溶剤として、ベンゼン、トル
エン、キシレン、塩化メチレン、ジクロルエタン、モノ
クロルベンゼン、ジクロルベンゼン、酢酸エチル、酢酸
ブチル、メチルエチルケトン、ジオキサン、テトラヒド
ロフラン、シクロヘキサノン、メチルセロソルブ、エチ
ルセロソルブなどを単独または混合して用いることがで
きる。The charge generation layer 1 can be formed by dissolving or dispersing a resin binder and a charge generation substance in a suitable solvent, applying the solution, and drying the solution. As a solvent, benzene, toluene, xylene, methylene chloride, dichloroethane, monochlorobenzene, dichlorobenzene, ethyl acetate, butyl acetate, methyl ethyl ketone, dioxane, tetrahydrofuran, cyclohexanone, methyl cellosolve, ethyl cellosolve, etc. can be used alone or in combination. can.
電荷移動層2は、電荷移動物質および樹脂バインダーを
適当な溶剤に溶解ないし分散し、これを電荷発生層1上
に塗布、乾燥することにより形成できる。また、必要に
より可塑剤やレベリング剤等を添加することもできる。The charge transfer layer 2 can be formed by dissolving or dispersing a charge transfer substance and a resin binder in a suitable solvent, coating the solution on the charge generation layer 1, and drying it. Moreover, a plasticizer, a leveling agent, etc. can also be added if necessary.
電荷移動物質としては、ポリ−N−ビニルカルバゾール
およびその誘導体、ポリ−チーカルバゾリルエチルグル
タメートおよびその誘導体、ピレン−ホルムアルデヒド
縮金物およびその誘導体、ポリビニルピレン、ポリビニ
ルフェナントレン、オキサゾール誘導体、オキサジアゾ
ール誘導体、イミダゾール誘導体、トリフェニルアミン
誘導体、9−(P−ジエチルアミノスチリル)アントラ
セン、1,1−ビス−(4−ジベンジルアミノフェニル
)プロパン、スチリルアントラセン、スチリルピラゾリ
ン、フェニルヒドラゾン類、α−フェニルスチルベン誘
導体等の電子供与性物質が挙げられる。Charge transfer substances include poly-N-vinylcarbazole and its derivatives, poly-carbazolylethyl glutamate and its derivatives, pyrene-formaldehyde condensate and its derivatives, polyvinylpyrene, polyvinylphenanthrene, oxazole derivatives, oxadiazole derivatives. , imidazole derivatives, triphenylamine derivatives, 9-(P-diethylaminostyryl)anthracene, 1,1-bis-(4-dibenzylaminophenyl)propane, styrylanthracene, styrylpyrazoline, phenylhydrazones, α-phenylstilbene Examples include electron-donating substances such as derivatives.
樹脂バインダーとしては、前記電荷発生層で用いたポリ
スチレン、スチレン−アクリロニトリル共重合体、スチ
レン−ブタジェン共重合体、スチレン−無水マレイン酸
共重合体、ポリエステル、ポリ塩化ビニル、塩化ビニル
−酢酸ビニル共重合体、ポリ酢酸ビニル、ポリ塩化ビニ
リデン、ポリアクリレート樹脂、フェノキシ樹脂、ポリ
カーボネート、酢酸セルロース樹脂、エチルセルロース
樹脂、ポリビニルブチラール、ポリビニルホルマール、
ポリビニルトルエン、ポリ−N−ビニルカルバゾール、
アクリル樹脂、シリコン樹脂、エポキシ樹脂、メラミン
樹脂、ウレタン樹脂、フェノール樹脂、アルキッド樹脂
等の熱可塑性または熱硬化性樹脂が挙げられる。Examples of the resin binder include polystyrene used in the charge generation layer, styrene-acrylonitrile copolymer, styrene-butadiene copolymer, styrene-maleic anhydride copolymer, polyester, polyvinyl chloride, vinyl chloride-vinyl acetate copolymer. Coalescence, polyvinyl acetate, polyvinylidene chloride, polyacrylate resin, phenoxy resin, polycarbonate, cellulose acetate resin, ethyl cellulose resin, polyvinyl butyral, polyvinyl formal,
polyvinyltoluene, poly-N-vinylcarbazole,
Examples include thermoplastic or thermosetting resins such as acrylic resin, silicone resin, epoxy resin, melamine resin, urethane resin, phenol resin, and alkyd resin.
このときの溶剤としては、テトラヒドロフラン、ジオキ
サン、トルエン、モノクロルベンゼン、ジクロルエタン
、塩化メチレン等が使用できる。As the solvent at this time, tetrahydrofuran, dioxane, toluene, monochlorobenzene, dichloroethane, methylene chloride, etc. can be used.
電荷移動層2の厚さは、5〜100μ園程度が適当であ
る。The appropriate thickness of the charge transfer layer 2 is about 5 to 100 microns.
また、電荷発生物質を分散した層が第3図に示されるよ
うな単層型感光層であるものは、前記した電荷発生層で
用いた電荷発生物質、ポリオキシエチレンポリオキシプ
ロピレングリコール、樹脂バインダー更には必要により
前記した電荷移動層で用いた電荷移動物質を混合し、こ
れらの塗工液を導電性支持体等上に塗布乾燥することに
よって形成することができる。In addition, if the layer in which the charge generating substance is dispersed is a single layer type photosensitive layer as shown in FIG. Furthermore, it can be formed by mixing the charge transfer substance used in the charge transfer layer described above, if necessary, and applying and drying the coating solution on a conductive support or the like.
更に、本発明においては、前記したように導電性支持体
と感光層の間に必要により下引層を設けることができる
。Furthermore, in the present invention, as described above, an undercoat layer can be provided between the conductive support and the photosensitive layer if necessary.
光散乱性下引層及び光吸収性下引層は前述の様にプリン
ター用感光体における光干渉防止を目的とする層である
。光散乱性下引層は、例えば酸化スズ、酸化アンチモン
等の導電性粉体と酸化亜鉛、硫化亜鉛、酸化チタン等の
白色顔料とを下記の様な熱硬化性樹脂中に分散して構成
され、また光吸収性下引層は、例えば炭素、各種金属等
の導電性光吸収性顔料及び/又は光吸収性有機顔料を同
様な熱硬化性樹脂中に分散して構成される。ここで使用
される熱硬化性樹脂は例えば、活性水素(−OH基、−
NH,基、 −NH基等の水素)を複数個含有する化合
物とイソシアネート基を複数個含有する化合物及び/又
はエポキシ基を複数個含有する化合物とを熱重合させた
ものである。活性水素を複数個含有する化合物としては
1例えばポリビニルブチラール、フェノキシ樹脂、フェ
ノール樹脂、ポリアミド、ポリエステル、ポリエチレン
グリコール。As described above, the light-scattering subbing layer and the light-absorbing subbing layer are layers intended to prevent light interference in a photoreceptor for a printer. The light-scattering undercoat layer is composed of a conductive powder such as tin oxide or antimony oxide and a white pigment such as zinc oxide, zinc sulfide, titanium oxide, etc. dispersed in a thermosetting resin as shown below. The light-absorbing subbing layer is constructed by dispersing a conductive light-absorbing pigment such as carbon, various metals, and/or a light-absorbing organic pigment in a similar thermosetting resin. The thermosetting resin used here includes, for example, active hydrogen (-OH group, -
It is obtained by thermally polymerizing a compound containing a plurality of hydrogen groups such as NH, group, -NH group, and a compound containing a plurality of isocyanate groups and/or a compound containing a plurality of epoxy groups. Examples of compounds containing a plurality of active hydrogens include polyvinyl butyral, phenoxy resin, phenol resin, polyamide, polyester, and polyethylene glycol.
ポリプロピレングリコール、ポリブチレングリコール、
ヒドロキシエチルメタアクリレート基等の活性水素を含
有するアクリル系樹脂等があげられる。イソシアネート
基を複数個含有する化合物としては、たとえば、トリレ
ンジイソシアネート、ヘキサメチレンジイソシアネート
、ジフェニルメタンジイソシアネート等とこれらのプレ
ポリマー等があげられ、エポキシ基を複数有する化合物
としては、ビスフェノールA型エポキシ樹脂等があげら
れる。polypropylene glycol, polybutylene glycol,
Examples include acrylic resins containing active hydrogen such as hydroxyethyl methacrylate groups. Examples of compounds containing a plurality of isocyanate groups include tolylene diisocyanate, hexamethylene diisocyanate, diphenylmethane diisocyanate, and prepolymers thereof, and examples of compounds containing a plurality of epoxy groups include bisphenol A type epoxy resins. can give.
いずれにしても光散乱性又は光吸収性下引層は以上の様
な成分を溶解又は分散した液を基体上に塗布し、5G−
200℃で熱重合させて形成される。なおこの下引層の
厚さは1−10μ■が適当である。また導電性粉末と白
色顔料と前記熱′硬化性樹脂との重量比は2〜671〜
5/2−6が適当であり、また光吸収性顔料と前記熱硬
化性樹脂との重量比は4〜9/1〜6が適当である。In any case, the light-scattering or light-absorbing undercoat layer is prepared by coating a liquid in which the above-mentioned components are dissolved or dispersed on the substrate.
It is formed by thermal polymerization at 200°C. The appropriate thickness of this undercoat layer is 1-10 .mu.m. Further, the weight ratio of the conductive powder, the white pigment, and the thermosetting resin is from 2 to 671.
The weight ratio of the light-absorbing pigment to the thermosetting resin is preferably 4 to 9/1 to 6.
本発明の電子写真用感光体は、電荷発生物質を分散した
層にポリオキシエチレンポリオキシプロピレングリコー
ルを含有させたことから、高感度であるとともに前露光
疲労による帯電性の低下が著しく小さく、しかも帯電と
露光の繰り返しにおいても帯電電位が低下しないという
顕著な作用効果を奏する。Since the electrophotographic photoreceptor of the present invention contains polyoxyethylene polyoxypropylene glycol in the layer in which a charge generating substance is dispersed, it has high sensitivity and significantly less decrease in chargeability due to pre-exposure fatigue. It has a remarkable effect that the charging potential does not decrease even after repeated charging and exposure.
以下、実施例により本発明の詳細な説明する。 Hereinafter, the present invention will be explained in detail with reference to Examples.
実施例1
〔電荷移動層用塗工液〕
表−1に示すアゾ顔料(顔料Not)5重量部とポリオ
キシエチレンポリオキシプロピレングリコール(HO→
c、 H40+Wr−4Ca us 0−Cs H,0
1、ニューポールPH68、三洋化成■、ブロック共重
合体〕の0.78重量2シクロヘキサノン溶液160重
量部とを72時間ボールミルで混合して顔料分散液を得
、ついでこの顔料分散液100重量部に、撹拌しながら
、メチルエチルケトン90重量部を追加混合して電荷発
生層塗工液とした。Example 1 [Coating liquid for charge transfer layer] 5 parts by weight of the azo pigment (pigment Not) shown in Table 1 and polyoxyethylene polyoxypropylene glycol (HO→
c, H40+Wr-4Ca us 0-Cs H,0
1, Nupol PH68, Sanyo Kasei ■, block copolymer] and 160 parts by weight of 2-cyclohexanone solution were mixed in a ball mill for 72 hours to obtain a pigment dispersion, and then added to 100 parts by weight of this pigment dispersion. While stirring, 90 parts by weight of methyl ethyl ketone was added to prepare a charge generation layer coating solution.
α−フェニルスチルベン系電荷移動物質(下記の化合物
)100重量部
テトラヒドロフラン 800重量部つぎに
、Anを真空蒸着した75μ鳳のポリエステルフィルム
基板上に上記の電荷発生層用塗工液をブレード塗工し、
120℃で10分間加熱乾燥して約0.2μ鳳の電荷発
生層を形成した。ついで、電荷発生層の上に下記組成の
電荷移動層用塗工液をブレード塗工し、120℃で20
分間加熱乾燥して約20μ■の電荷移動層を形成し感光
体を作成した。100 parts by weight of α-phenylstilbene-based charge transfer substance (compound shown below) 800 parts by weight of tetrahydrofuran Next, the above coating liquid for the charge generation layer was coated with a blade onto a 75 μm polyester film substrate on which An was vacuum-deposited. ,
The mixture was dried by heating at 120° C. for 10 minutes to form a charge generation layer having a thickness of about 0.2 μm. Next, a charge transfer layer coating solution having the following composition was applied onto the charge generation layer using a blade, and the coating solution was heated at 120°C for 20 minutes.
A charge transfer layer having a thickness of about 20 .mu.m was formed by heating and drying for a minute to prepare a photoreceptor.
実施例2
電荷発生層塗工液のアゾ顔料を顔料No39に代えた以
外は実施例1と同様にして感光体を作成した。Example 2 A photoreceptor was prepared in the same manner as in Example 1 except that the azo pigment in the charge generation layer coating solution was replaced with pigment No. 39.
実施例3
AQを真空蒸着した75μ鳳のポリエステルフィルム基
板上に実施例1で用いた電荷移動層用塗工液を実施例1
と同様にしてブレード塗工し、ついで乾燥して約20μ
園の電荷移動層を形成した。ついで、この電荷移動層の
上に実施例1で用いた電荷発生層用塗工液をスプレー塗
工し、120℃で30分間加熱乾燥して約0.2μ署の
電荷発生層を形成し感光体を作成した。Example 3 The coating liquid for the charge transfer layer used in Example 1 was applied to a 75 μm polyester film substrate on which AQ was vacuum-deposited in Example 1.
Apply blade coating in the same manner as above, then dry to about 20μ
Sono's charge transfer layer was formed. Next, the coating solution for the charge generation layer used in Example 1 was spray coated onto this charge transfer layer, and dried by heating at 120° C. for 30 minutes to form a charge generation layer with a thickness of about 0.2 μm, and then exposed to light. created a body.
実施例4
電荷移動層用塗工液のα−フェニルスチルベン化合物を
下記構造の化合物に変更した以外は実施例1と同様にし
て感光体を作成した。Example 4 A photoreceptor was prepared in the same manner as in Example 1, except that the α-phenylstilbene compound in the charge transfer layer coating solution was changed to a compound having the structure below.
実施例5
電荷発生層用塗工液の作成に使用したポリオキシエチレ
ンポリオキシプロピレングリコールにニーボールPH6
8,三洋化成■)の0.78重量%シクロヘキサノン溶
液をポリオキシエチレンポリオキシプロピレングリコー
ル〔ニューポール751(90000、三洋化成■、ラ
ンダム共重合体〕の0.39重量%シクロヘキサノン溶
液とした以外は実施例2と同様にして感光体を作成した
。Example 5 Kneeball PH6 was added to the polyoxyethylene polyoxypropylene glycol used to create the coating solution for the charge generation layer.
8, Sanyo Chemical ■) 0.78 weight percent cyclohexanone solution was replaced with a 0.39 weight percent cyclohexanone solution of polyoxyethylene polyoxypropylene glycol [Neupol 751 (90000, Sanyo Chemical ■, random copolymer)] A photoreceptor was produced in the same manner as in Example 2.
実施例6
電荷発生層用塗工液の作成に使用したメチルエチルケト
ン90重量部をポリビニルブチラール(商品名:XYH
L、ユニオンカーバイドプラスチック社製)の0.43
重量算メチルエチルケトン溶液90重量部とした以外は
実施例5と同様にして感光体を作成した。Example 6 90 parts by weight of methyl ethyl ketone used to prepare the coating solution for the charge generation layer was mixed with polyvinyl butyral (trade name: XYH
L, manufactured by Union Carbide Plastics Co.) 0.43
A photoreceptor was prepared in the same manner as in Example 5 except that the weight of the methyl ethyl ketone solution was 90 parts by weight.
実施例7
酸化アンチ上210重量メを含有する酸化スズの微粉8
重量部と酸化チタン白色顔料粉末5重量部とポリビニル
ブチラール(商品名: BL−1,種水化学社製)の1
2重量2メチルエチルケトン溶液68重量部とを72時
間ボールミルで処理し、次にメチルエチルケトン47重
量部を追加して48時間再びボールミルで処理した0次
にこの顔料分散液80重量部を撹拌しながら8重量部の
トリレンジイソシアネートの20重ffi%メチルエチ
ルケトン溶液を追加混合して光散乱用下引層塗工液とし
た。Example 7 Fine powder of tin oxide containing 210 parts by weight of anti-oxidant 8
1 part by weight, 5 parts by weight of titanium oxide white pigment powder, and 1 part by weight of polyvinyl butyral (trade name: BL-1, manufactured by Tanezu Kagaku Co., Ltd.)
68 parts by weight of the pigment dispersion was treated with a ball mill for 72 hours, then 47 parts by weight of methyl ethyl ketone was added and treated again with a ball mill for 48 hours.Next, 80 parts by weight of this pigment dispersion was mixed with 8 parts by weight of the pigment dispersion while stirring. A 20% by weight solution of tolylene diisocyanate in methyl ethyl ketone was further mixed to prepare a light scattering undercoat layer coating solution.
つぎに、AQを真空蒸着した75μ閣のポリエステルフ
ィルム基板上に上記光散乱用下引層塗工液をブレード塗
工し、120℃で30分間加熱硬化して約2.5μ肩の
光散乱用下引層を形成した。Next, the above light-scattering undercoat layer coating solution was applied with a blade onto a 75μ polyester film substrate on which AQ was vacuum-deposited, and cured by heating at 120°C for 30 minutes to form a light-scattering layer of about 2.5μ. A subbing layer was formed.
次に、この光散乱用下引層の上に実施例2と同様にして
電荷発生層及び電荷移動層を形成した感光体を作成した
。Next, a photoreceptor was prepared in which a charge generation layer and a charge transfer layer were formed on this light scattering undercoat layer in the same manner as in Example 2.
比較例1〜2
電荷発生層用塗工液のポリオキシエチレンポリオキシプ
ロピレングリコールにューポールpH!68)をポリビ
ニルブチラール(商品名: XYHL、ユニオンカーバ
イドプラスチック社製)にした以外は各々実施例1−2
と同様にして感光体を作成した。Comparative Examples 1 and 2 Eupol pH! was added to the polyoxyethylene polyoxypropylene glycol of the charge generation layer coating solution. Example 1-2 except that polyvinyl butyral (trade name: XYHL, manufactured by Union Carbide Plastics Co., Ltd.) was used for 68).
A photoreceptor was prepared in the same manner as described above.
比較例3
電荷発生層用塗工液のポリオキシエチレンポリオキシプ
ロピレングリコールにニーポールPH68)をポリビニ
ルブチラール(商品名:XYHL、ユニオンカーバイド
プラスチック社製)にした以外は実施例3と同様にして
感光体を作成した。Comparative Example 3 A photoconductor was prepared in the same manner as in Example 3, except that polyvinyl butyral (trade name: XYHL, manufactured by Union Carbide Plastics) was used instead of Niepol PH68) in the polyoxyethylene polyoxypropylene glycol of the charge generation layer coating solution. It was created.
比較例4
電荷発生層用塗工液のポリオキシエチレンポリオキシプ
ロピレングリコールにニーボールPH88)をポリビニ
ルブチラール(商品名:XYHL、ユニオンカーバイド
プラスチック社製)にした以外は実施例4と同様にして
感光体を作成した。Comparative Example 4 A photoreceptor was prepared in the same manner as in Example 4, except that polyvinyl butyral (trade name: XYHL, manufactured by Union Carbide Plastics) was used instead of knee ball (PH88) in the polyoxyethylene polyoxypropylene glycol of the charge generation layer coating solution. It was created.
比較例5
電荷発生層用塗工液のポリオキシエチレンポリオキシプ
ロピレングリコールにニーポールPH68)をポリエス
テル(商品名:バイロン200、東洋紡社製)にした以
外は実施例2と同様にして感光体を作成した。Comparative Example 5 A photoconductor was prepared in the same manner as in Example 2, except that polyester (trade name: Vylon 200, manufactured by Toyobo Co., Ltd.) was used instead of Niepol PH68) in the polyoxyethylene polyoxypropylene glycol of the coating liquid for the charge generation layer. did.
比較例6
電荷発生層用塗工液作成時のポリオキシエチレンポリオ
キシプロピレングリコールにニーポールPE68)の0
.78重量%シクロヘキサノン溶液をポリビニルブチラ
ール(商品名:XYHL、ユニオンカーバイドプラスチ
ック社Iりの5.88重量%シクロヘキサノン溶液にし
た以外は実施例1と同様にして感光体を作成した。Comparative Example 6 Kneepol PE68) 0 was added to polyoxyethylene polyoxypropylene glycol when preparing the coating solution for the charge generation layer.
.. A photoreceptor was prepared in the same manner as in Example 1, except that the 78% by weight cyclohexanone solution was replaced with a 5.88% by weight cyclohexanone solution of polyvinyl butyral (trade name: XYHL, manufactured by Union Carbide Plastics Co., Ltd.).
比較例7
電荷発生層用塗工液作成時のポリオキシエチレンポリオ
キシプロピレングリコール(二ニーポールPH68)を
リン酸トリステアリルエステルにした以外は実施例2と
同様にして感光体を作成した。Comparative Example 7 A photoreceptor was prepared in the same manner as in Example 2, except that tristearyl phosphate was used instead of polyoxyethylene polyoxypropylene glycol (Ninipol PH68) when preparing the coating solution for the charge generation layer.
以上の様にして作成した電子写真用感光体を。The photoreceptor for electrophotography was created as described above.
静電複写紙試験装置(川口電機製作所■、SP 428
型)を使用して、次の様に電子写真特性を評価した。ま
ず、各感光体に一6KVのコロナ放電を20秒間行なっ
て、その間にコロナ放電開始2秒後の帯電電位Vx (
volt)を測定し、その後、暗所に放電して表面電位
が一800vになった時点でタングステン光を照射して
、表面電位が一400vに光減衰するのに必要な露光量
5(lux 5ee)を求めた。その後1色温度285
6@にのタングステン光を100000 lux se
c照射の後、再び前記と同様に光疲労後の帯電電位V、
7(volt)及び露光量S’(lux 5ec)を求
めた0以上の結果を表−1に示す。Electrostatic copying paper testing device (Kawaguchi Electric Seisakusho ■, SP 428
The electrophotographic properties were evaluated as follows. First, a corona discharge of 16 KV is applied to each photoreceptor for 20 seconds, during which time the charged potential Vx (
After that, discharge in the dark and when the surface potential reaches 1800V, tungsten light is irradiated to obtain the exposure amount 5 (lux 5ee) required for the surface potential to optically attenuate to 1400V. ) was sought. Then 1 color temperature 285
6 @ tungsten light 100000 lux se
c After irradiation, the charged potential V after photo-fatigue is increased again in the same manner as above,
7 (volt) and the exposure amount S' (lux 5ec) of 0 or more are shown in Table 1.
なお、第2図のタイプ感光体は÷7kvのコロナ放電を
20秒間行って、その間にコロナ放電開始2秒後の帯電
4位v2を測定し、その後、暗所に放置して表面電位が
+800vになった時点でタングステン光を照射して、
表面電位が÷80vに光減衰するのに必要な露光量Sを
求めた。その後前記と同様に1000001ux sa
c照射後光疲労後の帯電4位%/、/及び露光量S′を
求めた。For the photoreceptor of the type shown in Fig. 2, a corona discharge of ÷7kV was performed for 20 seconds, during which time the charge 4 position v2 was measured 2 seconds after the start of the corona discharge, and then the surface potential was increased to +800V after being left in a dark place. When it reaches the point, irradiate the tungsten light,
The exposure amount S required for the surface potential to be optically attenuated to ÷80V was determined. After that, 1000001ux sa as above
c) The 4th position charge after photofatigue after irradiation, %/, and the exposure amount S' were determined.
第1図〜第4図は本発明に係る種々の電子写真用感光体
の模式断面図である。
1;電荷発生層
2;電荷移動層
3;導電性支持体
4;単層型感光層
5;下引層
特許出願人 株式会社 リ コ −手 続 補
正 書
昭和63年1月3日
特許“ゞ84゛“1 n ” 適
1、事件の表示
昭和62年特許願第54808号
住 所 東京都大田区中馬込1丁目3番6号氏 名
(674) 株式会社 リ コ −代表者 浜
1) 広
5、補正命令の日付 自発
6、補正により増加する発明の数 0.7.補正の対
象
明細書の「発明の詳細な説明」の欄
8、補正の内容
(3)第44頁1行の「暗所に放電して」を「暗所に放
置して」+ 400Vに」に訂正します。1 to 4 are schematic cross-sectional views of various electrophotographic photoreceptors according to the present invention. 1; Charge generation layer 2; Charge transport layer 3; Conductive support 4; Single-layer photosensitive layer 5; Undercoat layer Patent applicant: Ricoh Co., Ltd. - Procedural Amendment Patent dated January 3, 1986ゞ84゛“1 n” Suit 1, Indication of the case Patent Application No. 54808, filed in 1988 Address 1-3-6 Nakamagome, Ota-ku, Tokyo Name
(674) Rico Co., Ltd. - Representative Hama 1) Hiro 5, date of amendment order Voluntary 6, number of inventions increased by amendment 0.7. Column 8 of "Detailed Description of the Invention" of the specification subject to amendment, content of amendment (3) Page 44, line 1, "Discharge in a dark place" to "Leave it in a dark place" + 400V. I will correct it.
Claims (1)
なくとも有する電子写真用感光体において、電荷発生物
質を分散した層がオキシエチレン基とオキシプロピレン
基とを有し、かつ分子の末端が水酸基であるランダム共
重合体又はブロック共重合体を含有することを特徴とす
る電子写真用感光体。(1) In an electrophotographic photoreceptor having at least a layer in which a charge generating substance is dispersed on a conductive support, the layer in which the charge generating substance is dispersed has an oxyethylene group and an oxypropylene group, and 1. An electrophotographic photoreceptor comprising a random copolymer or a block copolymer in which is a hydroxyl group.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5480887A JP2575690B2 (en) | 1987-03-09 | 1987-03-09 | Electrophotographic photoreceptor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5480887A JP2575690B2 (en) | 1987-03-09 | 1987-03-09 | Electrophotographic photoreceptor |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS63220154A true JPS63220154A (en) | 1988-09-13 |
JP2575690B2 JP2575690B2 (en) | 1997-01-29 |
Family
ID=12981022
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP5480887A Expired - Fee Related JP2575690B2 (en) | 1987-03-09 | 1987-03-09 | Electrophotographic photoreceptor |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2575690B2 (en) |
-
1987
- 1987-03-09 JP JP5480887A patent/JP2575690B2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
JP2575690B2 (en) | 1997-01-29 |
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