WO2007029827A2 - 電子写真用感光体 - Google Patents
電子写真用感光体 Download PDFInfo
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- WO2007029827A2 WO2007029827A2 PCT/JP2006/317899 JP2006317899W WO2007029827A2 WO 2007029827 A2 WO2007029827 A2 WO 2007029827A2 JP 2006317899 W JP2006317899 W JP 2006317899W WO 2007029827 A2 WO2007029827 A2 WO 2007029827A2
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- 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
- G03G5/0503—Inert supplements
- G03G5/051—Organic non-macromolecular compounds
- G03G5/0517—Organic non-macromolecular compounds comprising one or more cyclic groups consisting of carbon-atoms only
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03F—PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
- G03F7/00—Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printing surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
- G03F7/004—Photosensitive materials
- G03F7/0045—Photosensitive materials with organic non-macromolecular light-sensitive compounds not otherwise provided for, e.g. dissolution inhibitors
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03F—PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
- G03F7/00—Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printing surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
- G03F7/20—Exposure; Apparatus therefor
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- 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
- G03G5/0601—Acyclic or carbocyclic compounds
- G03G5/0605—Carbocyclic compounds
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- 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
- G03G5/0601—Acyclic or carbocyclic compounds
- G03G5/0612—Acyclic or carbocyclic compounds containing nitrogen
- G03G5/0614—Amines
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- 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
- G03G5/0601—Acyclic or carbocyclic compounds
- G03G5/0612—Acyclic or carbocyclic compounds containing nitrogen
- G03G5/0614—Amines
- G03G5/06142—Amines arylamine
- G03G5/06144—Amines arylamine diamine
- G03G5/061443—Amines arylamine diamine benzidine
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- 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
- G03G5/0601—Acyclic or carbocyclic compounds
- G03G5/0612—Acyclic or carbocyclic compounds containing nitrogen
- G03G5/0614—Amines
- G03G5/06142—Amines arylamine
- G03G5/06144—Amines arylamine diamine
- G03G5/061446—Amines arylamine diamine terphenyl-diamine
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- 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
- G03G5/0601—Acyclic or carbocyclic compounds
- G03G5/0612—Acyclic or carbocyclic compounds containing nitrogen
- G03G5/0616—Hydrazines; Hydrazones
Definitions
- the present invention relates to an electrophotographic photoreceptor. Specifically, the present invention relates to an electrophotographic photoreceptor excellent in durability with small changes in charging potential and residual potential even after repeated use.
- inorganic photoconductive substances such as selenium, zinc oxide, cadmium sulfate, and silicon have been widely used for electrophotographic photoreceptors.
- These inorganic materials have many advantages and various drawbacks.
- selenium has the disadvantage that it is difficult to produce under the condition that it is easily crystallized by heat or mechanical impact, and acid zinc and sulfur cadmium have problems with moisture resistance and mechanical strength, and are added as sensitizers Dyeing causes deterioration of charging and exposure, resulting in lack of durability.
- the conditions for producing silicon are difficult, and because it uses a highly irritating gas, it is costly and sensitive to humidity.
- selenium and sulfur cadmium have toxicity problems.
- Organic photoreceptors using various organic compounds in which the disadvantages of these inorganic photoreceptors are improved are widely used.
- Organic photoreceptors include a single-layer photoreceptor in which a charge generator and a charge transport agent are dispersed in a binder resin, and a laminated photoreceptor that is functionally separated into a charge generation layer and a charge transport layer.
- the feature of such photoconductors is that they can be selected from a wide range of materials suitable for each function, and range power can be selected, and photoconductors with any performance can be easily produced. A lot of research has been conducted.
- organic materials have many advantages that inorganic materials do not have, they can sufficiently satisfy all the characteristics required for electrophotographic photoreceptors. It is the current state. That is, charging potential decreases, residual potential increases, sensitivity changes due to repeated use. The deterioration of the image quality is caused by the conversion. The causes of this deterioration are not completely understood, but some factors include ozone generated during charging by corona discharge, active gases such as NOX, exposure, and ultraviolet rays and heat contained in static elimination light. It may be possible to decompose the charge transport agent.
- Patent Document 1 Japanese Patent Laid-Open No. 1-044946
- Patent Document 2 JP-A-1-118845
- the present invention relates to an electrophotographic photoreceptor using a charge transfer agent having an aryl amino group in the molecule, and the increase in the residual potential, which is initially low in the residual potential, is suppressed, and the decrease in the charged potential is prevented.
- the purpose of the present invention is to provide an electrophotographic photosensitive member with little fatigue deterioration even after repeated use.
- the present invention relates to the following electrophotographic photoreceptor.
- Y represents a cyclic structure in which R is connected by a saturated bond or an unsaturated bond, and at least one of carbon atoms forming the cyclic structure. May be replaced by a heteroatom selected from N, S, 0, or P
- R may be the same or different, and may be an alkyl group, alkenyl group, alkoxy group,
- m is an integer from 1 to 20
- n is an integer from 0 to 20
- o is an integer from 0 to 4
- p is an integer from 0 to 4
- q is an integer from 0 to 3
- r is an integer from 1 to 20
- s is an integer between 0 and 20.
- a photosensitive layer containing at least one kind of charge transporting agent having an aryl amino group in the molecule.
- the charge transfer agent having an arylamino group in the molecule is represented by the following general formula (2), (3) or (4)
- R and R may be the same or different, straight chain having 1 to 12 carbon atoms
- branched alkyl groups substituted or unsubstituted straight chain aralkyl groups having 7 to 20 carbon atoms, substituted or unsubstituted branched aralkyl groups having 7 to 20 carbon atoms, or substituted or unsubstituted groups Represents a 1 to 4 aryl group.
- 7 8 may be the same or different, a hydrogen atom, a linear or branched alkyl group having 1 to 12 carbon atoms, a substituted or unsubstituted linear aralkyl group having 7 to 20 carbon atoms, Substituted or unsubstituted branched aralkyl group having 7 to 20 carbon atoms, linear or branched alkoxy group having 1 or 4 carbon atoms, substituted or unsubstituted aryloxy group, acyl group, carbon Represents a mono- or di-substituted amino group substituted with an alkoxycarbo group having 2 to 5 atoms, a halogen atom, a nitro group, an alkyl group having 1 to 4 carbon atoms, or a substituted or unsubstituted amide group .
- R or R has a substituent
- it may have a halogen atom, an alkoxy group, an aryloxy group, a dialkylamino group or an alkylthio group as a substituent only when R or R is an aryl group.
- R and R may be the same or different, straight chain having 1 to 12 carbon atoms
- R is hydrogen source
- R is a linear or branched alkyl group having 1 to 12 carbon atoms, substituted or unsubstituted carbon atom number 7 and 20 linear aralkyl group, substituted or unsubstituted carbon atom number 7 None, 20 branched aralkyl groups, 1 carbon atom !, 4 linear or branched alkoxy groups, substituted or unsubstituted aryloxy groups, acyl groups, 2-5 carbon atoms alkoxy carbo -Represents a thio group, a halogen atom, a nitro group, a mono- or di-substituted amino group substituted with an alkyl group having 1 to 4 carbon atoms, or a substituted or unsubstituted amide group.
- R is a linear or branched alkyl group having 1 to 12 carbon atoms
- 12 When 12 has a substituent, it may have a halogen atom, an alkoxy group, an aryloxy group, a dialkylamino group or an alkylthio group as a substituent.
- Z represents a divalent group of 0, S or N (R).
- R 1 and R 2 are the same or different.
- R is a hydrogen atom, a straight chain of 1 to 12 carbon atoms or
- Branched alkyl group substituted or unsubstituted straight-chain aralkyl group having 7 to 20 carbon atoms, substituted or unsubstituted branched aralkyl group having 7 to 20 carbon atoms, 1 carbon atom, 4 A linear or branched alkoxy group, a substituted or unsubstituted aryloxy group, an acyl group, an alkoxycarbonyl group having 2 to 5 carbon atoms, a halogen atom, a nitro group, or 1 to 4 carbon atoms.
- R is 1 to 1 carbon atoms
- R or R may have a gen atom, an alkoxy group, an aryloxy group, a dialkylamino group or an alkylthio group.
- R or R is an aryl group, an alkyl group is substituted as a substituent.
- a charge transfer agent having an aryl amino group in the molecule is represented by the following general formula (5):
- R 1 and R 2 may be the same or different;
- R is hydrogen, halogen atom, alkyl group, alkoxy group or
- R is a hydrogen atom, an alkyl group, an alkoxy group
- t is an integer of 1 or 2
- both groups may be the same or different, and both groups may be bonded to each other to form a tetramethylene ring or a trimethylene ring.
- R is substituted or unsubstituted
- a charge transfer agent having an arylamino group in the molecule is represented by the following general formula (6):
- R represents a hydrogen atom, an alkyl group, an alkoxy group or a halogen atom; , R, R and R may be the same or different, a hydrogen atom, an alkyl group, an alcohol
- a charge transfer agent having an arylamino group in the molecule is represented by the following general formula (7):
- R 1 and R 2 may be the same or different, and may be a hydrogen atom, an alkyl group, an alcohol,
- Represents a xoxy group, a halogen atom or a mono- or di-substituted amino group; w is an integer of 1 or 2, and when w 2, the two groups substituted by the same phenyl group may be the same or different.
- Ar and Ar may be the same or different, substituted or unsubstituted phenyl
- the content of the zirconium compound represented by the general formula (1) with respect to the charge transfer agent having an aryl amino group in the molecule is 0.01 to 0.50% by mass.
- FIG. 1 is a schematic cross-sectional view showing a layer structure of a function-separated electrophotographic photoreceptor.
- FIG. 2 is a schematic cross-sectional view showing a layer structure of a function-separated electrophotographic photoreceptor.
- FIG. 3 is a schematic cross-sectional view showing a layer structure of a function-separated electrophotographic photoreceptor in which an undercoat layer is provided between a charge generation layer and a conductive support.
- FIG. 4 is a schematic cross-sectional view showing the layer structure of a function-separated electrophotographic photoreceptor in which an undercoat layer is provided between a charge transport layer and a conductive support, and a protective layer is provided on the charge generation layer. .
- FIG. 5 is a schematic cross-sectional view showing the layer structure of a function-separated electrophotographic photoreceptor in which an undercoat layer is provided between a charge generation layer and a conductive support, and a protective layer is provided on the charge transport layer. .
- FIG. 6 is a schematic cross-sectional view showing the layer structure of a single-layer electrophotographic photoreceptor.
- FIG. 7 is a schematic cross-sectional view showing a layer structure of a single-layer electrophotographic photosensitive member in which an undercoat layer is provided between a photosensitive layer and a conductive support.
- FIGS. 1 and 2 illustrate a charge generation layer 2 containing a charge generation material as a main component on a conductive support 1, and a charge transport layer 3 containing a charge transport material and a binder resin as main components.
- a photosensitive layer 4 made of a laminate is provided. At this time, as shown in FIG. 3, FIG. 4 and FIG. 5, the photosensitive layer 4 is protected as an outermost layer which may be provided via the undercoat layer 5 for adjusting the charge provided on the conductive support. Layer 8 may be provided.
- the photosensitive layer 4 obtained by dissolving or dispersing the charge generating material 7 in the layer 6 mainly composed of the charge transporting material and the binder resin is conductively supported. It may be provided directly on the body 1 or via the undercoat layer 5.
- the photoreceptor of the present invention can be produced according to a conventional method as follows.
- the zirconium compound represented by the general formula (1) described above and one or more of the specific amine compounds represented by the general formulas (2) to (7) are combined with a binder resin in a suitable solvent. Dissolve, and if necessary, add a charge generating material, electron-withdrawing compound or plasticizer, pigment, etc. to prepare a coating solution.
- a photoreceptor can be produced.
- a photosensitive layer comprising two layers, a charge generation layer and a charge transport layer
- a zirconium compound represented by the general formula (1) and a specific amine compound represented by the general formulas (2) to (7) Apply a coating solution prepared by dissolving one or more types in a suitable solvent together with a binder resin and adding a plasticizer, pigment, etc., or apply a coating solution on the charge generation layer. It can be produced by forming a charge generation layer on the resulting charge transport layer.
- the photoreceptor manufactured in this way may be provided with an undercoat layer and a protective layer, if necessary.
- the hydrazone compound represented by the general formulas (2) to (4) used in the present invention can be obtained using production methods and synthesis examples reported in the past (for example, see Patent Document 3). ).
- the Stilil compound represented by the general formula (5) used in the present invention can also be obtained by using a production method and synthesis examples reported in the past (see, for example, Patent Document 4).
- the benzidine compound represented by the general formula (6) used in the present invention can be obtained by using a production method and synthesis examples reported in the past (for example, see Patent Document 5).
- the P-terphe-Louis compound represented by the general formula (7) used in the present invention can be obtained using a production method and synthesis examples reported in the past (see, for example, Patent Document 5).
- Patent Document 3 Japanese Patent Laid-Open No. 9-202762
- Patent Document 4 JP-A-8-211636
- Patent Document 5 JP-A-7-126225
- a general method for producing a zirconium compound used in the present invention can be obtained by reacting with a metal-imparting agent using water and Z or an organic solvent, and filtering and washing the product.
- a production method has already been disclosed and reported (for example, see Patent Document 6).
- Metal imparting agents that can be used for the production of zirconium compounds are zirconium halide compounds such as ZrCl, ZrF, ZrBr, and Zrl in the case of a tetravalent cation, Zr (OR)
- Examples include organic acid zirconium compounds.
- Patent Document 6 International Publication Number WO99Z012941
- the proportion of the zirconium compound is 0.01 to 0.50 mass% with respect to the charge transport agent having an aryl amino group in the molecule.
- the preferred amount used is 0.05 to 0.20% by mass with respect to the charge transporting agent.
- the conductive support on which the photosensitive layer of the present invention is formed materials used in known electrophotographic photoreceptors can be used.
- Metal drum, sheet or laminate of these metals, vapor deposition, or metal powder, force By applying a conductive material such as black, copper iodide, or polymer electrolyte together with an appropriate noinda and conducting a conductive treatment, including plastic film, plastic drum, paper, paper tube, or conductive material.
- a plastic film or a plastic drum imparted with conductivity can be used.
- an undercoat layer containing a resin or a resin and a pigment may be provided between the conductive support and the photosensitive layer.
- the pigment dispersed in the undercoat layer may be a commonly used powder, but a white color with almost no absorption in the near infrared or a color close to this is desirable when considering high sensitivity.
- examples of such pigments include metal oxides such as acid titanium, acid zinc, tin oxide, indium oxide, acid zirconium, alumina, and silica, and are hygroscopic.
- the resin used for the undercoat layer is preferably a resin having a high solvent resistance with respect to a general organic solvent, considering that a photosensitive layer is applied thereon with a solvent.
- resins include water-soluble resins such as polyvinyl alcohol, casein, and sodium polyacrylate, alcohol-soluble resins such as copolymer nylon and methoxymethyl nylon, polyurethane, melamine resin, and epoxy resin. Curable resin that forms a three-dimensional network structure.
- the charge generation layer in the present invention is composed of a charge generation agent, a binder resin, an additive added as necessary, and the production method thereof includes, for example, a coating method, a vapor deposition method, a CVD method and the like. can give.
- metal-free phthalocyanine of various crystal types such as ⁇ type, X type, copper phthalocyanine, aluminum phthalocyanine, zinc phthalocyanine, model, type, ⁇ -type oxotitatal phthalocyanine , Cobalt phthalocyanine, hydroxygallium phthalocyanine, chlor
- An azo pigment having a triphenylamine skeleton see, for example, Patent Document 7
- an azo pigment having a strong rubazole skeleton see, for example, Patent Document 8
- an azo pigment having a fluorene skeleton see, for example, Patent Document 9
- Azo pigments having an oxadiazole skeleton see, for example, Patent Document 10
- azo pigments having a bis-stilbene skeleton see, for example, Patent Document 11
- azo pigments having a dibenzothiophene skeleton for example, Patent Documents
- an azo pigment having a distyrylbenzene skeleton see, for example, Patent Document 13
- an azo pigment having a distyrylcarbazole skeleton see, for example, Patent Document 14
- having a distyryloxadiazole skeleton Azo pigments (for example, see Patent Document 15), azo pigments having a stilbene skeleton (for example, see Patent Document 16),
- Perylene pigments such as perylene acid anhydride and perylene imide.
- Polycyclic quinone pigments such as anthraquinone derivatives, anthanthrone derivatives, dibenzpyrenequinone derivatives, pyranthrone derivatives, violanthrone derivatives and isoviolanthrone derivatives.
- Patent Document 7 JP-A-53-132347
- Patent Document 8 Japanese Patent Laid-Open No. 53-095033
- Patent Document 9 Japanese Patent Application Laid-Open No. 54-022284
- Patent Document 10 Japanese Patent Application Laid-Open No. 54-012742
- Patent Document 12 Japanese Patent Application Laid-Open No. 54-021728
- Patent Document 13 JP-A 53-133445
- Patent Document 14 JP 54-017734
- Patent Document 15 Japanese Patent Laid-Open No. 54-002129
- Patent Document 16 JP-A-53-138229
- Patent Document 17 Japanese Patent Application Laid-Open No. 57-195767
- Patent Document 18 Japanese Patent Application Laid-Open No. 57-195768
- Patent Document 19 Japanese Patent Application Laid-Open No. 57-202545
- Patent Document 20 JP 59-129857 A
- Patent Document 21 Japanese Patent Laid-Open No. 62-267363
- Patent Document 22 JP-A-64-079753
- Patent Document 23 Japanese Patent Publication No. 3-034503
- Patent Document 24 Japanese Patent Publication No. 4-052459
- binder resin of the charge generation layer is not particularly limited, for example, Recarbonate, Polyarylate, Polyester, Polyamide, Polyethylene, Polystyrene, Polyatalylate, Polymetatalylate, Polybulutiral, Polybulassetal, Polyvinyl formal, Polyvinyl alcohol, Polyacrylonitrile, Polyacrylamide, Styrene Acrylic copolymer Polymers, styrene maleic anhydride copolymer, acrylonitrile butadiene copolymer, polysulfone, polyethersulfone, silicone resin, phenoxy resin. These may be used alone or in admixture of two or more as required.
- the film thickness of the charge generation layer formed using the above materials is 0.1 to 2. O / zm, preferably 0.1 to 1. O / zm.
- the charge transport layer in the present invention is prepared by dissolving a charge transport agent, a binder resin, and if necessary, an electron accepting substance and an additive in a solvent, and then dissolving them in a charge generation layer or a conductive support, an end coat layer. After coating on top, it can be dried.
- Binder compounds such as styrene, vinyl acetate, vinyl chloride, acrylic acid ester, methacrylic acid ester and butadiene are used as the binder resin for the charge transport layer.
- charge transport agents and additives such as acetal, polycarbonate (see, for example, Patent Documents 25 to 28), polyester, polyphenylene oxide, polyurethane cellulose ester, phenoxy resin, silicone resin, epoxy resin, etc.
- charge transport agents and additives such as acetal, polycarbonate (see, for example, Patent Documents 25 to 28), polyester, polyphenylene oxide, polyurethane cellulose ester, phenoxy resin, silicone resin, epoxy resin, etc.
- the amount of the binder resin used is usually in the range of 0.4 to 10 times by mass, preferably 0.5 to 5 times by mass with respect to the charge transfer agent.
- particularly effective resins include polycarbonate-based resins such as “Iupilon Z” (manufactured by Mitsubishi Engineering Plastics) and “Bisphenol A-biphenol alcohol polycarbonate” (manufactured by Idemitsu Kosan Co., Ltd.).
- Patent Document 25 Japanese Patent Application Laid-Open No. 60-172044
- Patent Document 26 Japanese Patent Laid-Open No. 62-247374
- Patent Document 27 Japanese Patent Laid-Open No. 63-148263
- Patent Document 28 Japanese Patent Application Laid-Open No. 2-254459
- the solvent used for the charge transport layer is not particularly limited as long as it dissolves the charge transport agent, the binder resin, the electron acceptor and the additive.
- tetrahydrofuran 1, 4 Polar organic solvents such as dioxane, methyl ethyl ketone, cyclohexanone, acetonitrile, N, N dimethylformamide, ethyl acetate, aromatic organic solvents such as toluene, xylene, chlorobenzene, chloroform, trichloroethylene, dichloromethane, 1
- Chlorine hydrocarbon solvents such as 2-dichloromethane and tetrasalt-carbon can be used. These may be used alone or in admixture of two or more as required.
- the photosensitive layer of the present invention may contain an electron accepting substance for the purpose of improving sensitivity, reducing residual potential, or reducing fatigue during repeated use.
- an electron-accepting substance include succinic anhydride, maleic anhydride, dibromosuccinic anhydride, anhydrous phthalic acid, tetrachlorophthalic anhydride, tetrabromophthalic anhydride, 3--torophthalic anhydride, 4 -Trophthalic anhydride, pyromellitic anhydride, meritic anhydride, tetracyanoethylene, tetracyanodimethane, o dinitrobenzene, m-dinitrobenzene, 1, 3, 5-trinitrobenzene, p-nitrobenzonitrile, picryl chloride , Quinone chlorimide, chloranil, bromanyl, dichlorodisiano p benzoquinone, anthraquinone, dinitroanthraquinone, 2, 3
- a surface protective layer may be provided on the surface of the photoreceptor.
- a resin such as polyester or polyamide, a metal capable of adjusting electric resistance, a metal oxide, or the like can be mixed and used. It is desirable that this surface protective layer be as transparent as possible in the light absorption wavelength region of the charge generating agent.
- the present invention will be specifically described below with reference to examples, but the present invention is not limited to these examples.
- the part in an Example represents a mass part and a density
- a photoconductor for comparison was produced in the same manner as in Example 1 except that Zr compound No. 1 was omitted in Example 1.
- a photoconductor was prepared in the same manner as in Example 1 except that [0060] was used.
- a comparative photoconductor was prepared in the same manner as in Example 2 except that Zr compound No. 1 was omitted in Example 2.
- Alcohol-soluble polyamide (Amilan CM-8000, manufactured by Toray Industries, Inc.) 10 parts dissolved in 190 parts of methanol, and then deposited on an aluminum surface of a PET film using a wire bar. A 1 ⁇ m undercoat layer was formed.
- a comparative photoconductor was prepared in the same manner as in Example 3 except that Zr compound No. 1 was omitted in Example 3.
- a photoconductor was prepared in the same manner as in Example 2 except that a 1: 1 mass ratio mixture was used.
- a photoconductor for comparison was produced in the same manner as in Example 4 except that in Example 4, the Zr compound No. 1 was omitted.
- charge generator As a charge generator, the following bisazo pigment (charge generator No. 4)
- a comparative photoconductor was prepared in the same manner as in Example 5 except that Zr compound No. 1 was omitted in Example 5.
- the photoconductors produced in Examples 1 to 4 and Comparative Examples 1 to 4 were evaluated for electrophotographic characteristics using a photosensitive drum characteristic measuring device (trade name “ELYSIA-II” manufactured by Trek Japan Co., Ltd.). .
- a photosensitive drum characteristic measuring device (trade name “ELYSIA-II” manufactured by Trek Japan Co., Ltd.).
- the photoconductor was subjected to corona discharge of 5.7 kV at a certain location, and then the charged potential V0 when the 701ux erase lamp was turned on was measured.
- image exposure was performed with monochromatic light of 780 nm-30 W, and the residual potential Vr was obtained.
- the charging potential V0 and the residual potential Vr after 1000 times of exposure from the above charging were measured. The results are shown in Table 2.
- the photoconductors produced in Example 5 and Comparative Example 5 were evaluated for electrophotographic characteristics using a photosensitive drum characteristic measuring apparatus (trade name “EL YSIA-II” manufactured by Trek Japan Co., Ltd.). First, the photoconductor was subjected to 5. OkV corona discharge at a certain location, and then the charged potential V0 when the 701ux erase lamp was turned on was measured. Next, image exposure was performed with 401ux white light to determine the residual potential Vr. The charging power V0 and the residual potential Vr after 1000 exposures were also measured. The results are shown in Table 3.
- the charge transfer agent having an arylamino group in the molecule of the present invention By combining the humic compound, it is possible to provide an electrophotographic photoreceptor excellent in durability with small changes in charging potential and residual potential.
- the electrophotographic photoreceptor of the present invention is useful as an electrophotographic photoreceptor capable of realizing high durability with a small residual potential even in the initial stage and a small change in electrophotographic characteristics.
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Photoreceptors In Electrophotography (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
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KR1020087005598A KR101327122B1 (ko) | 2005-09-08 | 2006-09-08 | 전자사진용 감광체 |
JP2007534488A JP5028265B2 (ja) | 2005-09-08 | 2006-09-08 | 電子写真用感光体 |
CN2006800331648A CN101371200B (zh) | 2005-09-08 | 2006-09-08 | 电子照相感光体 |
US12/066,179 US8003286B2 (en) | 2005-09-08 | 2006-09-08 | Photoreceptor for electrophotography |
EP06797725A EP1942097B1 (en) | 2005-09-08 | 2006-09-08 | Photoreceptor for electrophotography |
Applications Claiming Priority (2)
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JP2005-260220 | 2005-09-08 | ||
JP2005260220 | 2005-09-08 |
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WO2007029827A1 WO2007029827A1 (ja) | 2007-03-15 |
WO2007029827A2 true WO2007029827A2 (ja) | 2007-03-15 |
WO2007029827A3 WO2007029827A3 (ja) | 2008-06-05 |
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PCT/JP2006/317899 WO2007029827A2 (ja) | 2005-09-08 | 2006-09-08 | 電子写真用感光体 |
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US (1) | US8003286B2 (ja) |
EP (1) | EP1942097B1 (ja) |
JP (1) | JP5028265B2 (ja) |
KR (1) | KR101327122B1 (ja) |
CN (1) | CN101371200B (ja) |
TW (1) | TWI392979B (ja) |
WO (1) | WO2007029827A2 (ja) |
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US10316167B2 (en) * | 2014-09-19 | 2019-06-11 | Plastipak Packaging | Oxygen scavengers, compositions comprising the scavengers, and articles made from the compositions |
Family Cites Families (16)
Publication number | Priority date | Publication date | Assignee | Title |
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JPS57195255A (en) * | 1981-05-26 | 1982-11-30 | Canon Inc | Electrophotographic receptor |
JPS6444946A (en) | 1987-08-13 | 1989-02-17 | Konishiroku Photo Ind | Electrophotographic sensitive body |
JPH01118845A (ja) | 1987-11-02 | 1989-05-11 | Hitachi Chem Co Ltd | 電子写真感光体 |
JP2858324B2 (ja) * | 1989-08-22 | 1999-02-17 | 三菱化学株式会社 | 電子写真感光体 |
JP3574860B2 (ja) | 1993-11-01 | 2004-10-06 | 保土谷化学工業株式会社 | テトラフェニルベンジジン化合物 |
JPH08110648A (ja) * | 1994-10-07 | 1996-04-30 | Ricoh Co Ltd | 電子写真感光体 |
JP2886493B2 (ja) | 1994-10-31 | 1999-04-26 | 保土谷化学工業株式会社 | 電子写真用感光体 |
JPH08292587A (ja) * | 1995-02-23 | 1996-11-05 | Mitsubishi Chem Corp | 電子写真感光体 |
JPH09202762A (ja) | 1996-01-24 | 1997-08-05 | Hodogaya Chem Co Ltd | ヒドラゾン化合物及び該化合物を用いた電子写真用感光体並びに有機電界発光素子 |
US6410198B1 (en) * | 1997-09-05 | 2002-06-25 | Hodogaya Chemical Co., Ltd. | Zirconium compound and electrophotographic toner employing it |
US20010019674A1 (en) * | 2000-01-21 | 2001-09-06 | Masao Asano | Apparatus and method for forming image forming |
JP2002006555A (ja) * | 2000-04-21 | 2002-01-09 | Dainippon Ink & Chem Inc | 非磁性一成分現像用トナー |
JP2002189306A (ja) * | 2000-12-21 | 2002-07-05 | Mitsubishi Chemicals Corp | 電子写真感光体、電荷輸送層用塗布液及び電子写真感光体の製造方法 |
JP2002189307A (ja) * | 2000-12-21 | 2002-07-05 | Mitsubishi Chemicals Corp | 電子写真感光体、電荷輸送層用塗布液及び電子写真感光体の製造方法 |
JP4635461B2 (ja) * | 2003-11-06 | 2011-02-23 | 富士ゼロックス株式会社 | ヒドロキシガリウムフタロシアニン顔料及びその製造方法、感光層形成用塗布液の製造方法、電子写真感光体、プロセスカートリッジ、電子写真装置、並びに、画像形成方法 |
US7166397B2 (en) * | 2003-12-23 | 2007-01-23 | Xerox Corporation | Imaging members |
-
2006
- 2006-09-08 EP EP06797725A patent/EP1942097B1/en not_active Expired - Fee Related
- 2006-09-08 CN CN2006800331648A patent/CN101371200B/zh not_active Expired - Fee Related
- 2006-09-08 WO PCT/JP2006/317899 patent/WO2007029827A2/ja active Application Filing
- 2006-09-08 JP JP2007534488A patent/JP5028265B2/ja not_active Expired - Fee Related
- 2006-09-08 US US12/066,179 patent/US8003286B2/en not_active Expired - Fee Related
- 2006-09-08 TW TW095133244A patent/TWI392979B/zh not_active IP Right Cessation
- 2006-09-08 KR KR1020087005598A patent/KR101327122B1/ko not_active IP Right Cessation
Non-Patent Citations (1)
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See references of EP1942097A4 * |
Also Published As
Publication number | Publication date |
---|---|
EP1942097A4 (en) | 2010-07-21 |
KR101327122B1 (ko) | 2013-11-07 |
JPWO2007029827A1 (ja) | 2009-03-19 |
US20090104552A1 (en) | 2009-04-23 |
TWI392979B (zh) | 2013-04-11 |
TW200722940A (en) | 2007-06-16 |
KR20080042117A (ko) | 2008-05-14 |
CN101371200B (zh) | 2013-04-10 |
JP5028265B2 (ja) | 2012-09-19 |
US8003286B2 (en) | 2011-08-23 |
CN101371200A (zh) | 2009-02-18 |
EP1942097B1 (en) | 2011-12-21 |
EP1942097A2 (en) | 2008-07-09 |
WO2007029827A3 (ja) | 2008-06-05 |
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