JPS63301957A - Electrophotographic sensitive body - Google Patents
Electrophotographic sensitive bodyInfo
- Publication number
- JPS63301957A JPS63301957A JP13778387A JP13778387A JPS63301957A JP S63301957 A JPS63301957 A JP S63301957A JP 13778387 A JP13778387 A JP 13778387A JP 13778387 A JP13778387 A JP 13778387A JP S63301957 A JPS63301957 A JP S63301957A
- Authority
- JP
- Japan
- Prior art keywords
- good
- red
- reproducibility
- powder
- layer
- 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
- 239000012860 organic pigment Substances 0.000 claims abstract description 14
- 108091008695 photoreceptors Proteins 0.000 claims description 43
- BUGBHKTXTAQXES-UHFFFAOYSA-N Selenium Chemical compound [Se] BUGBHKTXTAQXES-UHFFFAOYSA-N 0.000 claims description 26
- 230000035945 sensitivity Effects 0.000 abstract description 27
- 239000000049 pigment Substances 0.000 abstract description 23
- 239000000463 material Substances 0.000 abstract description 16
- AZQWKYJCGOJGHM-UHFFFAOYSA-N 1,4-benzoquinone Chemical compound O=C1C=CC(=O)C=C1 AZQWKYJCGOJGHM-UHFFFAOYSA-N 0.000 abstract description 15
- 206010034972 Photosensitivity reaction Diseases 0.000 abstract description 10
- 230000036211 photosensitivity Effects 0.000 abstract description 10
- 125000003367 polycyclic group Chemical group 0.000 abstract description 7
- 230000031700 light absorption Effects 0.000 abstract description 6
- 125000002080 perylenyl group Chemical group C1(=CC=C2C=CC=C3C4=CC=CC5=CC=CC(C1=C23)=C45)* 0.000 abstract description 5
- CSHWQDPOILHKBI-UHFFFAOYSA-N peryrene Natural products C1=CC(C2=CC=CC=3C2=C2C=CC=3)=C3C2=CC=CC3=C1 CSHWQDPOILHKBI-UHFFFAOYSA-N 0.000 abstract description 5
- 229910000765 intermetallic Inorganic materials 0.000 abstract description 2
- 239000000843 powder Substances 0.000 abstract 3
- 229910018219 SeTe Inorganic materials 0.000 abstract 1
- 238000005286 illumination Methods 0.000 abstract 1
- 238000010030 laminating Methods 0.000 abstract 1
- FESBVLZDDCQLFY-UHFFFAOYSA-N sete Chemical compound [Te]=[Se] FESBVLZDDCQLFY-UHFFFAOYSA-N 0.000 abstract 1
- 230000000052 comparative effect Effects 0.000 description 13
- 238000000034 method Methods 0.000 description 13
- 239000011669 selenium Substances 0.000 description 13
- 229910052711 selenium Inorganic materials 0.000 description 13
- 230000003595 spectral effect Effects 0.000 description 11
- 229920005989 resin Polymers 0.000 description 10
- 239000011347 resin Substances 0.000 description 10
- 239000001054 red pigment Substances 0.000 description 9
- 230000003068 static effect Effects 0.000 description 8
- 230000004888 barrier function Effects 0.000 description 7
- 239000011248 coating agent Substances 0.000 description 7
- 238000000576 coating method Methods 0.000 description 7
- 239000006185 dispersion Substances 0.000 description 7
- 230000008030 elimination Effects 0.000 description 7
- 238000003379 elimination reaction Methods 0.000 description 7
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 description 6
- ZTWQZJLUUZHJGS-UHFFFAOYSA-N Vat Yellow 4 Chemical compound C12=CC=CC=C2C(=O)C2=CC=C3C4=CC=CC=C4C(=O)C4=C3C2=C1C=C4 ZTWQZJLUUZHJGS-UHFFFAOYSA-N 0.000 description 5
- 239000011230 binding agent Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 239000010408 film Substances 0.000 description 5
- 238000009877 rendering Methods 0.000 description 5
- 239000000243 solution Substances 0.000 description 5
- 229910052782 aluminium Inorganic materials 0.000 description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 4
- DKPFZGUDAPQIHT-UHFFFAOYSA-N butyl acetate Chemical compound CCCCOC(C)=O DKPFZGUDAPQIHT-UHFFFAOYSA-N 0.000 description 4
- 150000001875 compounds Chemical class 0.000 description 4
- 239000000975 dye Substances 0.000 description 4
- 238000002156 mixing Methods 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
- 229920000515 polycarbonate Polymers 0.000 description 4
- 239000004417 polycarbonate Substances 0.000 description 4
- 239000002904 solvent Substances 0.000 description 4
- LVGLBCQZYRCDFB-UHFFFAOYSA-N 10,10-dibromoanthracen-9-one Chemical compound C1=CC=C2C(Br)(Br)C3=CC=CC=C3C(=O)C2=C1 LVGLBCQZYRCDFB-UHFFFAOYSA-N 0.000 description 3
- -1 aromatic quinone compound Chemical class 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 3
- 229920001577 copolymer Polymers 0.000 description 3
- 230000003247 decreasing effect Effects 0.000 description 3
- 125000004435 hydrogen atom Chemical group [H]* 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 229920002037 poly(vinyl butyral) polymer Polymers 0.000 description 3
- 229920000728 polyester Polymers 0.000 description 3
- 239000004793 Polystyrene Substances 0.000 description 2
- YFPSDOXLHBDCOR-UHFFFAOYSA-N Pyrene-1,6-dione Chemical compound C1=CC(C(=O)C=C2)=C3C2=CC=C2C(=O)C=CC1=C32 YFPSDOXLHBDCOR-UHFFFAOYSA-N 0.000 description 2
- 125000000217 alkyl group Chemical group 0.000 description 2
- 229920002678 cellulose Polymers 0.000 description 2
- 229920003086 cellulose ether Polymers 0.000 description 2
- JHIVVAPYMSGYDF-UHFFFAOYSA-N cyclohexanone Chemical compound O=C1CCCCC1 JHIVVAPYMSGYDF-UHFFFAOYSA-N 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 230000001771 impaired effect Effects 0.000 description 2
- 239000003973 paint Substances 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 229920002223 polystyrene Polymers 0.000 description 2
- 239000004814 polyurethane Substances 0.000 description 2
- 229920002635 polyurethane Polymers 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 125000004178 (C1-C4) alkyl group Chemical group 0.000 description 1
- XQGDNRFLRLSUFQ-UHFFFAOYSA-N 2H-pyranthren-1-one Chemical class C1=C(C2=C3C4=C56)C=CC3=CC5=C3C=CC=CC3=CC6=CC=C4C=C2C2=C1C(=O)CC=C2 XQGDNRFLRLSUFQ-UHFFFAOYSA-N 0.000 description 1
- ZCYVEMRRCGMTRW-UHFFFAOYSA-N 7553-56-2 Chemical compound [I] ZCYVEMRRCGMTRW-UHFFFAOYSA-N 0.000 description 1
- GDALETGZDYOOGB-UHFFFAOYSA-N Acridone Natural products C1=C(O)C=C2N(C)C3=CC=CC=C3C(=O)C2=C1O GDALETGZDYOOGB-UHFFFAOYSA-N 0.000 description 1
- HRPVXLWXLXDGHG-UHFFFAOYSA-N Acrylamide Chemical compound NC(=O)C=C HRPVXLWXLXDGHG-UHFFFAOYSA-N 0.000 description 1
- 229910001369 Brass Inorganic materials 0.000 description 1
- YIDHAONJNZHZBK-UHFFFAOYSA-N C=1CC(C=C2C3=CC4=CC=C5C=C6C=CC=CC6=C6C=C7C=CC(=CC12)C3=C7C4=C56)=O Chemical compound C=1CC(C=C2C3=CC4=CC=C5C=C6C=CC=CC6=C6C=C7C=CC(=CC12)C3=C7C4=C56)=O YIDHAONJNZHZBK-UHFFFAOYSA-N 0.000 description 1
- 108010076119 Caseins Proteins 0.000 description 1
- QPLDLSVMHZLSFG-UHFFFAOYSA-N Copper oxide Chemical compound [Cu]=O QPLDLSVMHZLSFG-UHFFFAOYSA-N 0.000 description 1
- 239000005751 Copper oxide Substances 0.000 description 1
- 108010010803 Gelatin Proteins 0.000 description 1
- 229920004142 LEXAN™ Polymers 0.000 description 1
- 239000004418 Lexan Substances 0.000 description 1
- 239000004677 Nylon Substances 0.000 description 1
- 239000004952 Polyamide Substances 0.000 description 1
- 239000005062 Polybutadiene Substances 0.000 description 1
- 108010020346 Polyglutamic Acid Proteins 0.000 description 1
- 239000004372 Polyvinyl alcohol Substances 0.000 description 1
- NRCMAYZCPIVABH-UHFFFAOYSA-N Quinacridone Chemical compound N1C2=CC=CC=C2C(=O)C2=C1C=C1C(=O)C3=CC=CC=C3NC1=C2 NRCMAYZCPIVABH-UHFFFAOYSA-N 0.000 description 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- 229920002125 Sokalan® Polymers 0.000 description 1
- 229920002472 Starch Polymers 0.000 description 1
- MKRNVBXERAPZOP-UHFFFAOYSA-N Starch acetate Chemical compound O1C(CO)C(OC)C(O)C(O)C1OCC1C(OC2C(C(O)C(OC)C(CO)O2)OC(C)=O)C(O)C(O)C(OC2C(OC(C)C(O)C2O)CO)O1 MKRNVBXERAPZOP-UHFFFAOYSA-N 0.000 description 1
- WGLPBDUCMAPZCE-UHFFFAOYSA-N Trioxochromium Chemical compound O=[Cr](=O)=O WGLPBDUCMAPZCE-UHFFFAOYSA-N 0.000 description 1
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 description 1
- 235000010724 Wisteria floribunda Nutrition 0.000 description 1
- AUENCMJIQRQEKZ-UHFFFAOYSA-N acridine benzo[a]phenalen-7-one Chemical compound C1=CC=CC2=NC3=CC=CC=C3C=C12.C1=CC=C2C=CC=C3C(=O)C4=CC=CC=C4C1=C23 AUENCMJIQRQEKZ-UHFFFAOYSA-N 0.000 description 1
- FZEYVTFCMJSGMP-UHFFFAOYSA-N acridone Chemical compound C1=CC=C2C(=O)C3=CC=CC=C3NC2=C1 FZEYVTFCMJSGMP-UHFFFAOYSA-N 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- CECABOMBVQNBEC-UHFFFAOYSA-K aluminium iodide Chemical compound I[Al](I)I CECABOMBVQNBEC-UHFFFAOYSA-K 0.000 description 1
- PGEHNUUBUQTUJB-UHFFFAOYSA-N anthanthrone Chemical class C1=CC=C2C(=O)C3=CC=C4C=CC=C5C(=O)C6=CC=C1C2=C6C3=C54 PGEHNUUBUQTUJB-UHFFFAOYSA-N 0.000 description 1
- BEQBQOAWTXSRIB-UHFFFAOYSA-N anthracene-9,10-dione;1,3-thiazole Chemical compound C1=CSC=N1.C1=CC=C2C(=O)C3=CC=CC=C3C(=O)C2=C1 BEQBQOAWTXSRIB-UHFFFAOYSA-N 0.000 description 1
- 125000003710 aryl alkyl group Chemical group 0.000 description 1
- 230000002238 attenuated effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000001055 blue pigment Substances 0.000 description 1
- 239000010951 brass Substances 0.000 description 1
- 125000004432 carbon atom Chemical group C* 0.000 description 1
- 239000005018 casein Substances 0.000 description 1
- BECPQYXYKAMYBN-UHFFFAOYSA-N casein, tech. Chemical compound NCCCCC(C(O)=O)N=C(O)C(CC(O)=O)N=C(O)C(CCC(O)=N)N=C(O)C(CC(C)C)N=C(O)C(CCC(O)=O)N=C(O)C(CC(O)=O)N=C(O)C(CCC(O)=O)N=C(O)C(C(C)O)N=C(O)C(CCC(O)=N)N=C(O)C(CCC(O)=N)N=C(O)C(CCC(O)=N)N=C(O)C(CCC(O)=O)N=C(O)C(CCC(O)=O)N=C(O)C(COP(O)(O)=O)N=C(O)C(CCC(O)=N)N=C(O)C(N)CC1=CC=CC=C1 BECPQYXYKAMYBN-UHFFFAOYSA-N 0.000 description 1
- 235000021240 caseins Nutrition 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 125000001309 chloro group Chemical group Cl* 0.000 description 1
- MVPPADPHJFYWMZ-UHFFFAOYSA-N chlorobenzene Chemical compound ClC1=CC=CC=C1 MVPPADPHJFYWMZ-UHFFFAOYSA-N 0.000 description 1
- 229910000423 chromium oxide Inorganic materials 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 238000009500 colour coating Methods 0.000 description 1
- 229910000431 copper oxide Inorganic materials 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 150000002170 ethers Chemical class 0.000 description 1
- 239000008273 gelatin Substances 0.000 description 1
- 229920000159 gelatin Polymers 0.000 description 1
- 235000019322 gelatine Nutrition 0.000 description 1
- 235000011852 gelatine desserts Nutrition 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000010931 gold Substances 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
- 125000000623 heterocyclic group Chemical group 0.000 description 1
- 150000007857 hydrazones Chemical class 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 229910052740 iodine Inorganic materials 0.000 description 1
- 239000011630 iodine Substances 0.000 description 1
- BSIHWSXXPBAGTC-UHFFFAOYSA-N isoviolanthrone Chemical compound C12=CC=CC=C2C(=O)C2=CC=C3C(C4=C56)=CC=C5C5=CC=CC=C5C(=O)C6=CC=C4C4=C3C2=C1C=C4 BSIHWSXXPBAGTC-UHFFFAOYSA-N 0.000 description 1
- 230000000670 limiting effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 125000005397 methacrylic acid ester group Chemical group 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- WCPAKWJPBJAGKN-UHFFFAOYSA-N oxadiazole Chemical compound C1=CON=N1 WCPAKWJPBJAGKN-UHFFFAOYSA-N 0.000 description 1
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 239000002985 plastic film Substances 0.000 description 1
- 229920003227 poly(N-vinyl carbazole) Polymers 0.000 description 1
- 229920002285 poly(styrene-co-acrylonitrile) Polymers 0.000 description 1
- 229920002492 poly(sulfone) Polymers 0.000 description 1
- 229920000058 polyacrylate Polymers 0.000 description 1
- 239000004584 polyacrylic acid Substances 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 229920002857 polybutadiene Polymers 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 229920001225 polyester resin Polymers 0.000 description 1
- 239000004645 polyester resin Substances 0.000 description 1
- 229920002643 polyglutamic acid Polymers 0.000 description 1
- 229920000193 polymethacrylate Polymers 0.000 description 1
- 229920002451 polyvinyl alcohol Polymers 0.000 description 1
- 229920002717 polyvinylpyridine Polymers 0.000 description 1
- 229920000036 polyvinylpyrrolidone Polymers 0.000 description 1
- 239000001267 polyvinylpyrrolidone Substances 0.000 description 1
- 235000013855 polyvinylpyrrolidone Nutrition 0.000 description 1
- LLBIOIRWAYBCKK-UHFFFAOYSA-N pyranthrene-8,16-dione Chemical compound C12=CC=CC=C2C(=O)C2=CC=C3C=C4C5=CC=CC=C5C(=O)C5=C4C4=C3C2=C1C=C4C=C5 LLBIOIRWAYBCKK-UHFFFAOYSA-N 0.000 description 1
- DNXIASIHZYFFRO-UHFFFAOYSA-N pyrazoline Chemical compound C1CN=NC1 DNXIASIHZYFFRO-UHFFFAOYSA-N 0.000 description 1
- 230000002829 reductive effect Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 239000008107 starch Substances 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
- 125000003107 substituted aryl group Chemical group 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- VLLMWSRANPNYQX-UHFFFAOYSA-N thiadiazole Chemical compound C1=CSN=N1.C1=CSN=N1 VLLMWSRANPNYQX-UHFFFAOYSA-N 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- ANRHNWWPFJCPAZ-UHFFFAOYSA-M thionine Chemical compound [Cl-].C1=CC(N)=CC2=[S+]C3=CC(N)=CC=C3N=C21 ANRHNWWPFJCPAZ-UHFFFAOYSA-M 0.000 description 1
- XOLBLPGZBRYERU-UHFFFAOYSA-N tin dioxide Chemical compound O=[Sn]=O XOLBLPGZBRYERU-UHFFFAOYSA-N 0.000 description 1
- 229910001887 tin oxide Inorganic materials 0.000 description 1
- 150000003852 triazoles Chemical class 0.000 description 1
- 239000000052 vinegar Substances 0.000 description 1
- 235000021419 vinegar Nutrition 0.000 description 1
- YKSGNOMLAIJTLT-UHFFFAOYSA-N violanthrone Chemical compound C12=C3C4=CC=C2C2=CC=CC=C2C(=O)C1=CC=C3C1=CC=C2C(=O)C3=CC=CC=C3C3=CC=C4C1=C32 YKSGNOMLAIJTLT-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
- G03G5/06—Photoconductive layers; Charge-generation layers or charge-transporting layers; Additives therefor; Binders therefor characterised by the photoconductive material being organic
-
- 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
- G03G5/08—Photoconductive layers; Charge-generation layers or charge-transporting layers; Additives therefor; Binders therefor characterised by the photoconductive material being inorganic
- G03G5/087—Photoconductive layers; Charge-generation layers or charge-transporting layers; Additives therefor; Binders therefor characterised by the photoconductive material being inorganic and being incorporated in an organic bonding material
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Photoreceptors In Electrophotography (AREA)
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
本発明は、カールソン方式に用いて有効な電子写真感光
体に関し、さらに詳しくは広範囲な光吸収波長領域にわ
たって優れた感光特性を有する電子写真感光体に関する
。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to an electrophotographic photoreceptor that is effective for use in the Carlson system, and more particularly to an electrophotographic photoreceptor that has excellent photosensitivity over a wide light absorption wavelength range. .
従来の技術
電子写真感光体の光導電プロセスは、光電荷発生プロセ
ス及び電荷輸送プロセスからなっている。BACKGROUND OF THE INVENTION The photoconductive process of electrophotographic photoreceptors consists of a photocharge generation process and a charge transport process.
従来、電子写真感光体には、上記した２つのプロセスを
同一の物質で行う方法と、それぞれ別個の物質で行う方
法とが知られている。Conventionally, for electrophotographic photoreceptors, methods are known in which the two processes described above are performed using the same material, and methods in which the two processes are performed using different materials.
上記した２つの方法のうち、それぞれのプロセスを別個
の物質で行う方法は、前者に比べて感光体に使用する材
料の選択範囲が広いために、得られる感光体の光感度及
び受容電位等の電子写真特性が優れ、ざらに、感光体の
製造に際して、優れた成膜性及び物理的性質を有する皮
膜を形成することが可能であるという利点を有する。Of the two methods mentioned above, the method in which each process is performed using separate substances has a wider range of materials to choose from for the photoreceptor than the former, so the photosensitivity and acceptance potential of the resulting photoreceptor are It has excellent electrophotographic properties, and has the advantage that it is possible to form a film with excellent film formability and physical properties during the production of photoreceptors.
この様な方法を適用した感光体の具体的な構成例として
は、導電性支持体上に電荷発生層と電荷輸送層とをこの
順序で積層した、所謂、積層型電子写真感光体がよく知
られている。A well-known example of a specific structure of a photoreceptor to which such a method is applied is a so-called laminated electrophotographic photoreceptor in which a charge generation layer and a charge transport layer are laminated in this order on a conductive support. It is being
しかしながら、従来の積層型電子写真感光体においては
、電荷発生層に使用される材料が制限要因となり、広範
囲な光吸収波長領域に対応することができなかった。However, in conventional laminated electrophotographic photoreceptors, the material used for the charge generation layer is a limiting factor, and it has not been possible to accommodate a wide range of light absorption wavelength regions.
例えば青色顔料色素の場合は、比較的短波長のスペクト
ル領域（約４２０〜５００ｎｍ）で、また赤色顔料色素
の場合は、比較的長波長のスペクトル領域（約６２０ｎ
ｍから）で著しく減少した感光性を有する。For example, blue pigment dyes have a relatively short wavelength spectral region (approximately 420 to 500 nm), and red pigments have a relatively long wavelength spectral region (approximately 620 nm).
m) has a significantly reduced photosensitivity.
この欠点を改善するものとして、特公昭５９−３２７８
８号公報には、比較的長波長で吸収する顔料色素として
フタロシアニンを赤色顔料色素と１１用して、異なるス
ペクトル領域で作用を有する二つの色素を有する電荷発
生層を形成させ、それにより、比較的長波長のスペクト
ル領域での感光性を増加させることが記載されている。As a way to improve this drawback,
No. 8 discloses that a phthalocyanine as a pigment dye that absorbs at relatively long wavelengths is used with a red pigment dye 11 to form a charge generation layer having two dyes that act in different spectral regions. have been described to increase photosensitivity in the long wavelength spectral region.
発明が解決しようとする問題点
本発明者等は、電荷発生層に使用すべき顔料として、多
環キノン顔料又はペリレン顔料が特定の電荷輸送層と組
合わせた場合に、特性か非常に良好であることが見出だ
し、既に特許出願した。Problems to be Solved by the Invention The present inventors have discovered that polycyclic quinone pigments or perylene pigments, as pigments to be used in the charge generation layer, have very good properties when combined with a specific charge transport layer. I discovered something and have already applied for a patent.
（特願昭６１−８６００８号、特願昭６１−８６００９
＠）、これらの顔料は赤色顔料であるため、長波長領域
で感度がなくなる性質を有している。(Patent Application No. 1986-86008, Patent Application No. 61-86009
@) Since these pigments are red pigments, they have the property of losing sensitivity in the long wavelength region.
そこで、感光体の長波長領域での感度を上昇させるため
に、これ等赤色顔料を、特公昭５９−３２７８８号公報
に記載の技術を適用し、フタロシアニンと併用して用い
たところ、所期の目的を達成させるためには多量のフタ
ロシアニンを含有させねばならなかった。その結果、多
環キノン顔料又はペリレン顔料が有する良好な感光特性
が感光体に反映されなくなってしまい、例えば、繰返し
安定性の低下、残留電位の増加、又は顔料の分散安定性
の低下等の障害を生じるという問題が生じた。Therefore, in order to increase the sensitivity of the photoreceptor in the long wavelength region, we applied the technology described in Japanese Patent Publication No. 59-32788 and used these red pigments in combination with phthalocyanine, which resulted in the desired effect. In order to achieve this goal, a large amount of phthalocyanine had to be included. As a result, the good photosensitivity properties of polycyclic quinone pigments or perylene pigments are no longer reflected in the photoreceptor, resulting in problems such as decreased cyclic stability, increased residual potential, or decreased pigment dispersion stability. A problem arose.
本発明は、上記の様な問題点に鑑みてなされたもので、
広範囲な光吸収波長領域を有し、かつ、帯電能、光感度
等の感光特性に優れ、赤色・青色再現性及び除電光質適
性をコントロール可能にした電子写真感光体の提供を目
的とする。The present invention was made in view of the above problems, and
The purpose of the present invention is to provide an electrophotographic photoreceptor that has a wide light absorption wavelength range, has excellent photosensitive characteristics such as charging ability and photosensitivity, and has controllable red and blue reproducibility and suitability for static elimination light quality.
問題点を解決するための手段
本発明は、導電性支持体上に、少な（とも、電荷発生層
及び電荷輸送層を有する電子写真感光体において、該電
荷発生層が、赤色再現性が良好である有機顔料と青色再
現性が良好であるセレン粉体とを含有することを特徴と
する。Means for Solving the Problems The present invention provides an electrophotographic photoreceptor having a charge generation layer and a charge transport layer on a conductive support, in which the charge generation layer has good red reproducibility. It is characterized by containing a certain organic pigment and selenium powder that has good blue reproducibility.
本発明の電子写真感光体は、少なくとも導電性支持体と
電荷発生層と電荷輸送層とからなる積層体であり、導電
性支持体の上に電荷発生層及び電荷輸送層が順次積層さ
れている。導電性支持体への電荷発生層と電荷輸送層の
積層順序は格別限定されるものではないが、感光体の物
理的強度を高めるという点からすると、導電性支持体と
電荷発生層と電荷輸送層とをこの順序で積層した構成の
ものが好ましい。The electrophotographic photoreceptor of the present invention is a laminate comprising at least a conductive support, a charge generation layer, and a charge transport layer, and the charge generation layer and the charge transport layer are sequentially laminated on the conductive support. . The order in which the charge generation layer and charge transport layer are stacked on the conductive support is not particularly limited, but from the viewpoint of increasing the physical strength of the photoreceptor, the order in which the charge generation layer and charge transport layer are stacked on the conductive support It is preferable to have a structure in which the layers are laminated in this order.
本発明の電子写真感光体の層構成を図面によって説明す
ると、第３図においては、導電性支持体１上に電荷発生
層２及び電荷輸送層３が順次設けられており、第４図に
おいては、導電性支持体１上に電荷輸送層３及び電荷発
生層２が順次設けられている。又、第５図及び第６図に
おいては、導電性支持体１上に障壁層４が設けられてい
る。The layer structure of the electrophotographic photoreceptor of the present invention will be explained with reference to the drawings. In FIG. 3, a charge generation layer 2 and a charge transport layer 3 are sequentially provided on a conductive support 1, and in FIG. , a charge transport layer 3 and a charge generation layer 2 are sequentially provided on a conductive support 1. Further, in FIGS. 5 and 6, a barrier layer 4 is provided on the conductive support 1. In FIG.
以下、本発明の電子写真感光体における各層についてを
詳細に説明する。Each layer in the electrophotographic photoreceptor of the present invention will be described in detail below.
導電性支持体は、通常、電子写真感光体の導電性支持体
として使用されているものであれば如何なるものであっ
てもよく、格別限定されるものではない。このような支
持体としては、例えば、真鍮、アルミニウム、金、銀等
の金属材料；前記金属の表面がプラスチックの薄膜で被
覆されたちの；金属被覆紙、金属被覆プラスチックシー
トあるいはヨウ化アルミニウム、ヨウ化銅、酸化クロム
又は酸化錫等の導電層で被覆されたガラス等が挙げられ
る。これらは適当な厚さ、硬さ及び屈曲性を有する円筒
状、シート状物として使用され、支持体自身が導電性を
有するか、又はその表面が導電性を有し、取扱いに際し
て充分な強度を有しているものであることが好ましい。The conductive support may be of any type as long as it is normally used as a conductive support for electrophotographic photoreceptors, and is not particularly limited. Such supports include, for example, metal materials such as brass, aluminum, gold, and silver; metal surfaces coated with a thin film of plastic; metal-coated paper, metal-coated plastic sheets, or aluminum iodide, iodine Examples include glass coated with a conductive layer such as copper oxide, chromium oxide, or tin oxide. These are used as cylindrical or sheet-like objects with appropriate thickness, hardness, and flexibility, and either the support itself is conductive or its surface is conductive, and has sufficient strength when handling. It is preferable that the
電荷発生層は、セレン粉体と赤色再現性が良好である有
機顔料、すなわち可視光スペクトルの短波長域に感度を
有する有機顔料とを含有する。赤色再現性か良好である
顔料色素としては例えば次のものがあげられる。The charge generation layer contains selenium powder and an organic pigment that has good red reproducibility, that is, an organic pigment that is sensitive to the short wavelength region of the visible light spectrum. Examples of pigments with good red reproducibility include the following:
（式中、Ｒ１は水素、Ｃ１〜Ｃ４アルキル基、場合によ
り置換されたアリール基、アラルキル基又は複素環式基
を表わす。）
（式中、Ｒ２は水素、低級アルキル基又はフェニル基を
表わす。）
多環キノン顔料：
本明細書において多環キノン顔料とは、３環以上の縮合
環を有する芳香族キノン系化合物を指し、例えば、特開
昭４７−１８５４４号公報に記載されているようなアン
トアントロン、ピランスロン、ジベンズピレンキノン、
ピレンキノン、３，４゜９．１０−ジベンズピレンキノ
ン、臭素化アントアシトロン、臭素化ジベンズピレンキ
ノン、臭素化ピランスロン、アントラキノンチアゾール
、フラバンスロン等をはじめ塩素化アントアントロン、
ジメトキシアントアントロン、ビオランスロン、イソビ
オランスロン、ジアントラキノン、ベンゾアントロンア
クリジン、アクリドンカルバゾール、シナフタロイルア
クリドン等各種の顔料があげられる。具体的には、例え
ば次のものが使用できる。(In the formula, R1 represents hydrogen, a C1-C4 alkyl group, an optionally substituted aryl group, an aralkyl group, or a heterocyclic group.) (In the formula, R2 represents hydrogen, a lower alkyl group, or a phenyl group. ) Polycyclic quinone pigment: In this specification, the polycyclic quinone pigment refers to an aromatic quinone compound having three or more condensed rings, such as those described in JP-A-47-18544. anthantrone, pyranthrone, dibenzpyrenequinone,
Pyrenequinone, 3,4゜9.10-dibenzpyrenequinone, brominated anthocitron, brominated dibenzpyrenequinone, brominated pyranthrone, anthraquinone thiazole, flavanthrone, etc., as well as chlorinated anthantrone,
Various pigments include dimethoxyanthanthrone, violanthrone, isoviolanthrone, dianthraquinone, benzanthrone acridine, acridonecarbazole, and synaphthaloyl acridone. Specifically, for example, the following can be used.
アントアントロン
ビランスロン ３．４．９．１０−
ジベンズピレンキノンジベンズピレンキノン
臭素化アントアントロンピレンキノン
臭素化ジベンズピレンキノンこれら多環キノン顔
料の特徴は、光の吸収が大きく高効率で電荷の発生と放
射ができること、顔料の化学的安定性が高く熱や光等に
よって劣化しにくいこと、顔料の分散性がよくて塗料と
しての安定性も良好であることなどである。Antoanthromviranthrone 3.4.9.10-
Dibenzpyrenequinone Dibenzpyrenequinone
Brominated anthanthrone pyrene quinone
Brominated dibenzpyrene quinone The characteristics of these polycyclic quinone pigments are that they absorb a lot of light and can generate and emit charges with high efficiency. It has good dispersibility and good stability as a paint.
赤色顔料と併用されるセレン粉体としては、三方晶系セ
レン、あるいは非晶質セレンの他、ＡＳ２ Ｓｅ３．５
ｅＴｅ等の金属間化合物をあげることができる。Selenium powder used in combination with red pigment includes trigonal selenium, amorphous selenium, and AS2 Se3.5.
Examples include intermetallic compounds such as eTe.
赤色再現性が良好である有機顔料としては、特に上記し
た多環キノン顔料あるいはペリレンが好適で必る。また
セレン粉体としては特に、三方晶系セレンか好適である
。As the organic pigment with good red reproducibility, the above-mentioned polycyclic quinone pigment or perylene is particularly preferred. Furthermore, trigonal selenium is particularly suitable as the selenium powder.
電荷発生層に含有される上記赤色＠利及びセレン粉体を
分散させる結合剤樹脂としては周知のもの、例えば、ポ
リカーボネート、ポリスチレン、ポリエステル、ポリビ
ニルブチラール、メタクリル酸エステル重合体又は共重
合体、酢酸ビニル重合体又は共重合体、セルロースエス
テル又はエーテル、ポリブタジェン、ポリウレタン、エ
ポキシ樹脂等が用いられる。The binder resin for dispersing the red and selenium powder contained in the charge generation layer is well known, such as polycarbonate, polystyrene, polyester, polyvinyl butyral, methacrylic acid ester polymer or copolymer, and vinyl acetate. Polymers or copolymers, cellulose esters or ethers, polybutadiene, polyurethane, epoxy resins, etc. are used.
電荷発生層は、前記赤色再現性が良好な有機顔料及びセ
レン粉体を結合剤樹脂の溶液に分散させ、塗布すること
によって形成する。分散手段としては、ボールミル、ロ
ールミル、サンドミル、アトライター等、通常用いられ
るものが使用できる。The charge generation layer is formed by dispersing the organic pigment with good red reproducibility and selenium powder in a binder resin solution and coating the solution. As the dispersion means, commonly used ones such as a ball mill, roll mill, sand mill, attritor, etc. can be used.
赤色再現性が良好な顔料とセレン粉体の配合比は、１０
０： ０．１〜１００ ： ４０．好ましくは２０：
１−８： １である。上記顔料の比率が高すぎる場
合は青色再現性、光感度、長波長感度において好ましく
なく、セレン粉体の配合比率が高すぎる場合は赤色再現
性において好ましくないので上記′の範囲にするのが望
ましい。The blending ratio of pigment and selenium powder with good red reproducibility is 10
0: 0.1-100: 40. Preferably 20:
1-8: 1. If the ratio of the above pigments is too high, it is unfavorable for blue reproducibility, photosensitivity, and long wavelength sensitivity. If the ratio of selenium powder is too high, it is unfavorable for red reproducibility, so it is desirable to keep it within the above range. .
又、電荷発生層の膜厚は、０．０５〜５μｍ程度である
。Further, the thickness of the charge generation layer is approximately 0.05 to 5 μm.
電荷発生剤（赤色再現性が良好な赤色顔料及びセレン粉
体）と結合剤樹脂の配合比は、４５： １〜１：４、好
ましくは２０： １〜１： ２である。電荷発生剤の比
率か高すぎる場合には、塗布溶液の安定性が低下し、低
すぎる場合には感度が低下するので、上記の範囲にする
のが望ましい。The blending ratio of the charge generating agent (a red pigment with good red reproducibility and selenium powder) and the binder resin is 45:1 to 1:4, preferably 20:1 to 1:2. If the ratio of the charge generating agent is too high, the stability of the coating solution will decrease, and if it is too low, the sensitivity will decrease, so it is desirable to keep it within the above range.
また、結合剤樹脂の溶剤としては溶解性があるものなら
ば如何なるものでも使用できるが、顔料分散性が好いも
のを選択するのが望ましい。また、溶剤は複数のものを
併用してもよい。Further, as the solvent for the binder resin, any solvent can be used as long as it is soluble, but it is desirable to select a solvent that has good pigment dispersibility. Further, a plurality of solvents may be used in combination.
一方、電荷輸送層には、電荷輸送材料が含まれる。電荷
輸送材料は、可視光に対して透過性を有する正孔輸送物
質であればどんなものであってもよく、例えば、ポリビ
ニルカルバゾール、ポリビニルインドール、ポリごニル
ペリレン等の高分子有機半導体もしくはオキサジアゾー
ル、ピラゾリン、チアジアゾール、トリアゾール、ヒド
ラゾン等の低分子有機半導体か挙げられ、特に、下記−
１３一
般式（Ａ＞で示される化合物が特に好適である。On the other hand, the charge transport layer contains a charge transport material. The charge transporting material may be any hole transporting material that is transparent to visible light, such as polymeric organic semiconductors such as polyvinylcarbazole, polyvinylindole, polyvinylperylene, or oxadiazole. , pyrazoline, thiadiazole, triazole, hydrazone, etc., and in particular, the following -
13 Compounds represented by the general formula (A>) are particularly preferred.
（但し、Ｒ３〜８は、それぞれ水素原子、１〜４個の炭
素原子を有するアルキル基及び塩素原子からなる群から
選ばれる。）
電荷輸送材料が、それ自体では成膜性がない場合に□は
、成膜性が良好な樹脂と組合わせて使用される。使用で
きる樹脂としては、例えばポリカーボネート、ポリアク
リレート、ポリエステル、ポリスチレン、スチレン−ア
クリロニトリル共重合体、ポリスルホン、ポリメタクリ
ル酸エステル、スチレン−メタクリル酸エステル共重合
体等が挙げられる。(However, R3 to R8 are each selected from the group consisting of a hydrogen atom, an alkyl group having 1 to 4 carbon atoms, and a chlorine atom.) When the charge transport material does not have film-forming properties by itself, □ is used in combination with a resin that has good film-forming properties. Examples of resins that can be used include polycarbonate, polyacrylate, polyester, polystyrene, styrene-acrylonitrile copolymer, polysulfone, polymethacrylate, and styrene-methacrylate copolymer.
電荷輸送層は、上記電荷輸送性材料の溶液を塗布するか
、又は電荷輸送材料と結着樹脂とを含む分散液を塗布す
ることによって容易に形成することができる。この場合
、前者と後者の配合比は、５ ： １〜１：５、好まし
くは３： １〜１： ３である。前者の比率が高すぎる
場合には、電荷輸送層の機械的強度が低下し、低すぎる
場合には感度が低下するので、上記の範囲にするのが望
ましい。The charge transport layer can be easily formed by applying a solution of the above charge transport material or by applying a dispersion containing the charge transport material and a binder resin. In this case, the blending ratio of the former and the latter is 5:1 to 1:5, preferably 3:1 to 1:3. If the former ratio is too high, the mechanical strength of the charge transport layer will decrease, and if it is too low, the sensitivity will decrease, so it is desirable to keep it within the above range.
又、電荷輸送層の膜厚は、２〜５０μ瓦であることか好
ましい。Further, the thickness of the charge transport layer is preferably 2 to 50 μm.
本発明の電子写真感光体においては、感光層と導電性支
持体との間に障壁層を設けるのが好ましい。障壁層は基
体からの不必要な電荷の注入を阻止するために有効であ
り、感光層の帯電性を高くする作用がある。さらに、感
光層と導電性支持体との接着性を向上させる作用もある
。障壁層を構成する材料としては、ポリビニルアルコー
ル、ポリビニルピロリドン、ポリビニルピリジン、セル
ロースエーテル類、セルロースエステル類、ポリアミド
、ポリウレタン、カゼイン、ゼラチン、ポリグルタミン
酸、澱粉、スターチアセテート、アミノスターチ、ポリ
アクリル酸、ポリアクリルアミド等が挙げられる。これ
らの材料の抵抗率は１０〜１０１４Ω・ｃｍ程度が好ま
しい。障壁層の膜厚は、０．０５〜２μｍ程度に設定す
る。In the electrophotographic photoreceptor of the present invention, it is preferable to provide a barrier layer between the photosensitive layer and the conductive support. The barrier layer is effective for blocking unnecessary charge injection from the substrate, and has the effect of increasing the chargeability of the photosensitive layer. Furthermore, it also has the effect of improving the adhesion between the photosensitive layer and the conductive support. Materials constituting the barrier layer include polyvinyl alcohol, polyvinylpyrrolidone, polyvinylpyridine, cellulose ethers, cellulose esters, polyamide, polyurethane, casein, gelatin, polyglutamic acid, starch, starch acetate, aminostarch, polyacrylic acid, and polyester. Examples include acrylamide. The resistivity of these materials is preferably about 10 to 10 14 Ω·cm. The thickness of the barrier layer is set to about 0.05 to 2 μm.
実施例 以下、本発明を実施例によって詳細に説明する。Example Hereinafter, the present invention will be explained in detail with reference to Examples.
実施例１〜５
赤色再現性が良好な有機顔料として（１）ジブロモアン
トアントロン（Ｃ，１，ピグメント・レッド１６８）、
（２）キナクリドン、（３）ピランスロン、（４）ジベ
ンズピレンキノン、（５）ペリレンを用い、一方、電荷
輸送材料として下記構造式のＮ、Ｎ’−ジフェニル−Ｎ
、Ｎ’−ビス（３−メチルフェニル）−［１，１’ 、
１−４．４’ −ジアミンを用いた。Examples 1 to 5 Organic pigments with good red reproducibility include (1) dibromoanthanthrone (C,1, Pigment Red 168);
(2) quinacridone, (3) pyranthrone, (4) dibenzpyrenequinone, and (5) perylene were used, while N,N'-diphenyl-N of the following structural formula was used as a charge transport material.
, N'-bis(3-methylphenyl)-[1,1',
1-4.4'-diamine was used.
ポリビニルブチラール樹脂（商品名ＢＬＸ：積水化学■
製）１ｇを酢酸ｎ−ブチル４０ｇに溶解し、その中に上
記それぞれの顔１４９９を添加し、さらに三方晶系セレ
ンを１９添加した後にペイントシ工−カーでよく分散さ
せ、得られた分散液をアプリケーターによってアルミニ
ウムシート上に塗布し電荷発生層を形成した。乾燥後の
膜厚は０．５μｍであった。Polyvinyl butyral resin (product name BLX: Sekisui Chemical ■
1 g of n-butyl acetate was dissolved in 40 g of n-butyl acetate, each of the above-mentioned face 1499 was added thereto, trigonal selenium 19 was further added, and then well dispersed with a paint shaker, and the resulting dispersion was A charge generation layer was formed by applying it onto an aluminum sheet using an applicator. The film thickness after drying was 0.5 μm.
次に、上記電荷輸送材料５ｇとポリカーボネート（商品
名レキサン１４５ ＧＥ社製、分子量：約３５０００
〜４００００） ５ｇをメチレンクロリド３５３に溶
解して、電荷発生層の上にアプリケーターによって塗布
し電荷輸送層を形成した。ｉ ｏｏ’ｃで１時間乾燥後
、膜厚を測定すると２２μ而であった。Next, 5 g of the above charge transport material and polycarbonate (trade name: Lexan 145, manufactured by GE, molecular weight: about 35,000
~40,000) was dissolved in methylene chloride 353 and applied onto the charge generation layer using an applicator to form a charge transport layer. After drying at IOO'C for 1 hour, the film thickness was measured to be 22 μm.
このようにして作成した電子写真感光体シートを一８０
０ｖになるように帯電させ、次いで、白色光を照射して
光減衰させ、そのときの露光量Ｅ［ｅｒｃ＋／ ｃｔｉ
ｌと電位の減衰量Ｖを測定し、感度ｄＶ／ｄＥを求めた
。上記の帯電及び白色光照射の操作を２０回反復した後
、同様にして感度を求めた。The electrophotographic photoreceptor sheet prepared in this way was
It is charged to 0V, then white light is irradiated to attenuate the light, and the exposure amount E[erc+/cti
The sensitivity dV/dE was determined by measuring the amount of attenuation V of the potential. After repeating the above-mentioned charging and white light irradiation operations 20 times, the sensitivity was determined in the same manner.
その結果を第１表に示す。又、実施例１及び５の電子写
真感光体トラムの分光感度を第２図に示す。The results are shown in Table 1. Further, the spectral sensitivities of the electrophotographic photoreceptor trams of Examples 1 and 5 are shown in FIG.
第１表
比較例１〜５
赤色再現性が良好な赤色顔料として、実施例１〜５と同
様の顔料を用い、三方晶系セレンを１９添加せずに、赤
色再現性が良好な赤色顔料のみ１０９をポリビニルブチ
ラール樹脂１９、酢ｌｎ−ブチル４０ヒに溶解した以外
は実施例１〜５と同様にして電子写真感光体を作成し、
これらについて同様にして感度を測定した。この結果を
第２表に示す。又、比較例５の電子写真感光体ドラムの
分光感度を第２図に示す。Table 1 Comparative Examples 1 to 5 The same pigments as Examples 1 to 5 were used as red pigments with good red reproducibility, but only red pigments with good red reproducibility were used without adding 19 trigonal selenium. An electrophotographic photoreceptor was prepared in the same manner as in Examples 1 to 5, except that 109 was dissolved in polyvinyl butyral resin 19 and ln-butyl vinegar 40.
The sensitivity of these samples was measured in the same manner. The results are shown in Table 2. Further, the spectral sensitivity of the electrophotographic photosensitive drum of Comparative Example 5 is shown in FIG.
第２表
ざらに実施例１及び５、比較例１及び５については感光
体ドラムを作製し、それを用いて電子写真法によってコ
ピー画像を得、その」ピー画質演色性を評価した。その
結果を第３表に示す。Table 2 In summary, for Examples 1 and 5 and Comparative Examples 1 and 5, photoreceptor drums were prepared and used to obtain copy images by electrophotography, and their image quality and color rendering properties were evaluated. The results are shown in Table 3.
以上の結果から明らかなように、本発明の実施例の場合
は、比較例に比して感度が充分高かった。As is clear from the above results, the sensitivity of the examples of the present invention was sufficiently higher than that of the comparative examples.
又、青色再現性が良好であって、赤色再現性を損なうこ
とがなく、演色性も優秀であった。Moreover, the blue reproducibility was good, the red reproducibility was not impaired, and the color rendering properties were also excellent.
比較例６〜８
実施例１〜５において青色再現性が良好な三方晶系セレ
ンを（１）β型無金属フタロシアニン、（２）クロルダ
イアンブルー、（３）シアニンブルーに代えた以外は同
様にして電子写真感光体を作成し、それらについて同様
にして感度を測定した。Comparative Examples 6 to 8 Same as Examples 1 to 5 except that trigonal selenium with good blue reproducibility was replaced with (1) β-type metal-free phthalocyanine, (2) Chlordiane Blue, and (3) Cyanine Blue. Electrophotographic photoreceptors were prepared using the same method, and the sensitivities of the photoreceptors were measured in the same manner.
但し、赤色再現性が良好な赤色顔料としては、ジブロム
アントアントロンを全てのサンプルで用いた。この結果
を第４表に示す。However, as a red pigment with good red reproducibility, dibromanthanthrone was used in all samples. The results are shown in Table 4.
以上の結果から明らかなように、本発明の三方晶系セレ
ンの代りに上記青色再現性が良好な顔料を同じ割合だけ
添加すると、三方晶系セレンを用いた場合に比して充分
な感度が得ることはできない。また、目的の感度にする
ために上記青色再現性が良好な顔料を多量に混合すると
、ジブロモアントアントロンが有する良好な感光特性が
反映されなくなってしまい、例えば、短波長域での感度
低下、繰返し安定性の低下、残留電位の増加、ざらに顔
料の分散安定性の低下等の障害を生じた。As is clear from the above results, when the same proportion of the above pigment with good blue reproducibility is added in place of the trigonal selenium of the present invention, sufficient sensitivity can be obtained compared to the case where trigonal selenium is used. You can't get it. In addition, if a large amount of the pigment with good blue reproducibility is mixed in order to achieve the desired sensitivity, the good photosensitivity properties of dibromoanthrone will no longer be reflected, resulting in decreased sensitivity in the short wavelength range and repeated Problems such as a decrease in stability, an increase in residual potential, and a decrease in the dispersion stability of the pigment were caused.
なお、比較例６の電子写真感光体の分光感度を第２図に
示す。Incidentally, the spectral sensitivity of the electrophotographic photoreceptor of Comparative Example 6 is shown in FIG.
実施例６及び７及び比較例９
赤色再現性が良好な有機顔料としてジブロモアントアン
トロンを青色再現性が良好な三方晶系セレンと併用して
実施例１と同様にして電荷発生層を形成した。即ち、
ポリエステル樹脂（商品名：アドヒージブ４９０００
、Ｄｕ ｐｏｎｔ社製＞ ３ｇをシクロへキサノン６
０ｇに溶解し、この中に各々
ジブロモアントアントロン１９ （ｊ及び三方晶系セレ
ン１ｇ（実施例６）
ジブロモアントアントロン１８ ｇ及び三方晶系セレン
２９ （実施例７）
を混合し、次いでサンドグラインダーミルによって２時
間にわたり分散した。得られた分散液６０ｇにメチルエ
ヂルケトン４０９を加えて塗布液とし、特開昭５３−２
２５４４号公報に記載されているリングカラー塗布機に
よってφ８４Ｘ ３３８ｍのアルミニウムパイプの表面
に塗布した。１００’Ｃで１０分間乾燥して膜厚０．６
μｍの電荷発生層を形成した。Examples 6 and 7 and Comparative Example 9 A charge generation layer was formed in the same manner as in Example 1 using dibromoanthanthrone as an organic pigment with good red reproducibility in combination with trigonal selenium which has good blue reproducibility. That is, polyester resin (product name: Adhesive 49000
, manufactured by Du Pont > 3g of cyclohexanone 6
dibromoanthrone 19 (j) and trigonal selenium 1 g (Example 6) and dibromoanthanthrone 18 g and trigonal selenium 29 (Example 7) were mixed therein, and then milled in a sand grinder mill. 60 g of the obtained dispersion was added to prepare a coating liquid, and 60 g of the obtained dispersion was prepared as a coating liquid.
The coating was applied to the surface of an aluminum pipe measuring φ84 x 338 m using a ring collar coater described in Japanese Patent No. 2544. Dry at 100'C for 10 minutes to obtain a film thickness of 0.6
A charge generation layer of .mu.m was formed.
次に、電荷輸送材料として、次の構造式をもつ化合物を
用意した。Next, a compound having the following structural formula was prepared as a charge transport material.
上記構造式化合物１０ｇとポリカーボネート７（重量平
均分子ｉ ４００００） １ｉｇとをモノクロルベンゼ
ン４５ｇとメチレンクロリド４５ｇとの混合物に溶解し
て塗布液を得た。この塗布液をリングカラー塗布機にて
電荷発生層の上に塗布した。１１０℃で３０分間乾燥さ
せ、膜厚１９μｍの電荷輸送層を形成し、電子写真感光
体ドラムを作成した。A coating solution was obtained by dissolving 10 g of the above structural formula compound and 1 ig of polycarbonate 7 (weight average molecule i: 40,000) in a mixture of 45 g of monochlorobenzene and 45 g of methylene chloride. This coating liquid was applied onto the charge generation layer using a ring color coating machine. It was dried at 110° C. for 30 minutes to form a charge transport layer with a thickness of 19 μm, thereby producing an electrophotographic photosensitive drum.
比較のためにジブロモアントアントロンと三方晶系セレ
ンどの代りに、ジブロモアントアントロンのみを２０９
用いて電荷発生層を形成しく比較例９）、上記と同様に
して電子写真感光体ドラムを作成した。For comparison, instead of dibromoanthrone and trigonal selenium, only dibromoanthanthrone was used.
Comparative Example 9) An electrophotographic photosensitive drum was prepared in the same manner as described above.
得られた電子写真感光体ドラムを５．９ＫＶコロナ帯電
器によって実施例１におけると同一条件で帯電させ、電
位の減衰量を実施例１におけると同様にして測定し、ド
ラムの１回転目と５００回転目感度（ｄＶ／ｄＥ＞を求
めた。その結果を第５表に示す。又、それ等電子写真感
光体ドラムの分光感度を第１図に示す。The obtained electrophotographic photoreceptor drum was charged with a 5.9 KV corona charger under the same conditions as in Example 1, and the amount of potential attenuation was measured in the same manner as in Example 1. The rotating eye sensitivity (dV/dE>) was determined. The results are shown in Table 5. The spectral sensitivities of these electrophotographic photosensitive drums are also shown in FIG.
第５表
上記の結果からも明らかな如く、本発明の電子写真感光
体ドラムは、いずれも高感度であり、又１回転目と５０
０回転目おける電位と感度の変動も僅かであることが分
る。ジブロモアントアントロンに三方晶系セレンを添加
することにより高感度化されており、特に中〜長波長域
で高感度化されていることが明らかである。Table 5 As is clear from the above results, the electrophotographic photosensitive drums of the present invention all have high sensitivity, and
It can be seen that the fluctuations in potential and sensitivity at the 0th rotation are also slight. It is clear that the sensitivity is increased by adding trigonal selenium to dibromoanthanthrone, particularly in the medium to long wavelength range.
第４表に示した結果を得るのと同様にしてコピー画像を
得、そのコピー画質から演色性を評価したところ、実施
例６及び７の場合には比較例９の場合に比して良好な演
色性を示した。Copy images were obtained in the same manner as for obtaining the results shown in Table 4, and the color rendering properties were evaluated based on the quality of the copy images, and it was found that Examples 6 and 7 were better than Comparative Example 9. It showed color rendering properties.
実施例８
２４ 一
実施例７において、アルミニウムパイプに電荷発生層を
塗布する前に、予めアルコール可溶性の共重合ナイロン
樹脂をパイプ表面に膜厚０．５μｍになるように塗布し
て障壁層を形成した。この上に、実施例７におけると同
様にして感光層を形成し、電子写真感光体ドラムを作成
した。このものについて、実施例７におけると同様にし
て試験を行った。その結果を第６表に示す。Example 8 24 In Example 7, before applying the charge generation layer to the aluminum pipe, an alcohol-soluble copolymerized nylon resin was applied to the pipe surface in advance to a thickness of 0.5 μm to form a barrier layer. did. A photosensitive layer was formed thereon in the same manner as in Example 7 to produce an electrophotographic photosensitive drum. This product was tested in the same manner as in Example 7. The results are shown in Table 6.
第６表
ざらに又、上記電子写真感光体ドラムは除電光質適性の
幅も広く、優れている。即ち、除電光として用いるＬ
Ｅ Ｄ （Ｌａ５ｅｒ Ｅｍｉｔｔｅｄ Ｄｉｏｄｅ
）としては、Ｇｒｅｅｎ、 ＹｅｌｌＯＷ、 Ｒｅｄ
、があるが、電子写真感光体ドラムについて実際の電子
写真プロセスで１回目から１００回目で画質を検査した
ところ、−２５＝
比較例９の場合には、Ｇｒｅｅｎ、 ＹｅｌｌｏｗＬか
除電光として用いることができなかった。一方、実施例
７の場合においては、いずれのＬＥＤを除電光として用
いても安定した繰返し特性を示し、本発明の電子写真感
光体が従来の電子写真感光体に比べ広い除電光質適性を
有していることか分った。Table 6 also shows that the electrophotographic photosensitive drum described above has a wide range of suitability for static elimination light quality and is excellent. In other words, L used as static electricity removal light
E D (La5er Emitted Diode
) as Green, YellowOW, Red
However, when the image quality of the electrophotographic photoreceptor drum was inspected from the first to the 100th time in an actual electrophotographic process, -25 = In the case of Comparative Example 9, Green, YellowL, or it could be used as a static elimination light. could not. On the other hand, in the case of Example 7, stable repeatability was exhibited no matter which LED was used as the static elimination light, and the electrophotographic photoreceptor of the present invention had wider suitability for static elimination light quality than conventional electrophotographic photoreceptors. I realized what I was doing.
上記、実施例１〜８及び比較例１〜９について光感度、
除電光質適性、コピー演色性についての結果を第７表に
まとめて示す。なお、表中、Ｑは良好、Δはやや不良、
Ｘは不良を意味する。For the above Examples 1 to 8 and Comparative Examples 1 to 9, photosensitivity,
Table 7 summarizes the results regarding the aptitude for static elimination light quality and color rendering properties for copying. In addition, in the table, Q is good, Δ is slightly poor,
X means defective.
発明の効果
本発明の電子写真感光体は、赤色再現性の良好な有機顔
料と青色再現性の良好であるセレン粉体を含む電荷発生
層を有するから、青色再現性が良好であり、しかも赤色
再現性が損なわれることがないので、比較的短波長域か
ら長波長域まで高い感度を示す。特に、この電荷発生層
を上記一般式（Ａ＞で示される化合物を含む電荷輸送層
とを組合わせると、帯電性がよく、光の照射による電位
減衰が速くて感度が高く、ざらに電位減衰の電場依存性
が少なくて、比較的低電位でも光減衰しやすい、即ち、
電位の裾引きがなくて残留電位がほとんどない電子写真
感光体が得られる。Effects of the Invention The electrophotographic photoreceptor of the present invention has a charge generation layer containing an organic pigment with good red reproducibility and selenium powder with good blue reproducibility, so it has good blue reproducibility and red color. Since reproducibility is not impaired, it exhibits high sensitivity from relatively short wavelength ranges to long wavelength ranges. In particular, when this charge generation layer is combined with a charge transport layer containing a compound represented by the above general formula (A>), the chargeability is good, the potential decay due to light irradiation is fast, the sensitivity is high, and the potential decay is rough. has little dependence on the electric field and is easily attenuated even at relatively low potentials, i.e.
An electrophotographic photoreceptor with almost no residual potential without potential tailing can be obtained.
また、本発明の電子写真感光体は、電位安定性が良好で
、温度湿度依存性も少なく、ざらに光疲労が極めて少な
く、光による帯電性の低下、いわゆる光メモリー効果が
なくて、非常に使いやすいという特性を有する。In addition, the electrophotographic photoreceptor of the present invention has good potential stability, little temperature and humidity dependence, very little light fatigue, and no deterioration in chargeability due to light, the so-called photomemory effect, and is very effective. It has the characteristic of being easy to use.
ざらに、本発明の電子写真感光体は、広範囲な光吸収波
長領域を有し、従来の感光体に比べ色再現性が青色・赤
色肉色において良好である。In general, the electrophotographic photoreceptor of the present invention has a wide light absorption wavelength range and has better color reproducibility in blue and red flesh colors than conventional photoreceptors.
さらに又、本発明の電子写真感光体は、赤色再現性の良
好な有機顔料と、青色再現性の良好なセレン粉体の配合
比を調整することにより、実際の電子写真複写機におけ
る除電光質適性をコントロールすることが可能になる。Furthermore, the electrophotographic photoreceptor of the present invention can improve the static elimination light quality in actual electrophotographic copying machines by adjusting the blending ratio of an organic pigment with good red reproducibility and selenium powder with good blue reproducibility. It is possible to control aptitude.
本発明の電子写真感光体は、電子写真複写機に効果的に
使用されるが、ざらに、ゼログラフィー技術を応用した
各種のプリンター、マイクロフィルムリーダー、電子写
真製版システム等にも適用可能である。The electrophotographic photoreceptor of the present invention is effectively used in electrophotographic copying machines, but it is also applicable to various printers, microfilm readers, electrophotographic engraving systems, etc. that apply xerography technology. .
第１図は、実施例６及び７及び比較例９の電子写真感光
体ドラムの分光感度を示すグラフ、第２図は実施例１及
び５、及び比較例５及び６の電子写真感光体ドラムの分
光感度を示すグラフ、第３図乃至第６図は、それぞれ本
発明の電子写真感光体の模式的断面図である。
１・・・導電性支持体、２・・・電荷発生層、３・・・
電荷輸送層、４・・・障壁層。
特許出願人 富士ゼロックス株式会社代理人
弁理士 渡部 剛
（Ｖ −ｔｙｉ／ｅｒａ）
波 長（ｎｍ）
第２図
第３図
第４図
第５図
二＝コ・
□Ｘ３ぐ□Ｎ□−５］＼ −
第６図FIG. 1 is a graph showing the spectral sensitivity of the electrophotographic photosensitive drums of Examples 6 and 7 and Comparative Example 9, and FIG. 2 is a graph showing the spectral sensitivities of the electrophotographic photosensitive drums of Examples 1 and 5 and Comparative Examples 5 and 6. Graphs showing spectral sensitivity, FIGS. 3 to 6, are each a schematic cross-sectional view of the electrophotographic photoreceptor of the present invention. DESCRIPTION OF SYMBOLS 1... Conductive support, 2... Charge generation layer, 3...
Charge transport layer, 4... barrier layer. Patent applicant Fuji Xerox Co., Ltd. Agent
Patent Attorney Tsuyoshi Watanabe (V -tyi/era) Wavelength (nm) Figure 2 Figure 3 Figure 4 Figure 5
Claims (3)
輸送層を有する電子写真感光体において、電荷発生層が
赤色再現性が良好な有機顔料とセレン粉体とを含有する
ことを特徴とする電子写真感光体。(1) An electrophotographic photoreceptor having at least a charge generation layer and a charge transport layer on a conductive support, characterized in that the charge generation layer contains an organic pigment with good red reproducibility and selenium powder. Electrophotographic photoreceptor.
又はアントアントロン誘導体であることを特徴とする特
許請求の範囲第１項に記載の電子写真感光体。(2) The electrophotographic photoreceptor according to claim 1, wherein the organic pigment with good red reproducibility is anthantrone or an anthantrone derivative.
、セレン粉体０．１〜４０重量部を含有してなる特許請
求の範囲第１項に記載の電子写真感光体。(3) The electrophotographic photoreceptor according to claim 1, which contains 0.1 to 40 parts by weight of selenium powder to 100 parts by weight of an organic pigment with good red reproducibility.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62137783A JP2536526B2 (en) | 1987-06-02 | 1987-06-02 | Electrophotographic photoreceptor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62137783A JP2536526B2 (en) | 1987-06-02 | 1987-06-02 | Electrophotographic photoreceptor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63301957A true JPS63301957A (en) | 1988-12-08 |
| JP2536526B2 JP2536526B2 (en) | 1996-09-18 |
Family
ID=15206740
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62137783A Expired - Lifetime JP2536526B2 (en) | 1987-06-02 | 1987-06-02 | Electrophotographic photoreceptor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2536526B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02300757A (en) * | 1989-05-16 | 1990-12-12 | Fuji Xerox Co Ltd | Electrophotographic sensitive body |
| JP2011124334A (en) * | 2009-12-09 | 2011-06-23 | Fujifilm Corp | Radiation sensor and radiation image photographing apparatus |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5560952A (en) * | 1978-10-31 | 1980-05-08 | Ricoh Co Ltd | Laminated type electrophotographic photoreceptor |
-
1987
- 1987-06-02 JP JP62137783A patent/JP2536526B2/en not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5560952A (en) * | 1978-10-31 | 1980-05-08 | Ricoh Co Ltd | Laminated type electrophotographic photoreceptor |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02300757A (en) * | 1989-05-16 | 1990-12-12 | Fuji Xerox Co Ltd | Electrophotographic sensitive body |
| JP2011124334A (en) * | 2009-12-09 | 2011-06-23 | Fujifilm Corp | Radiation sensor and radiation image photographing apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2536526B2 (en) | 1996-09-18 |
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