WO2006009126A1 - 電子写真感光体 - Google Patents
電子写真感光体 Download PDFInfo
- Publication number
- WO2006009126A1 WO2006009126A1 PCT/JP2005/013187 JP2005013187W WO2006009126A1 WO 2006009126 A1 WO2006009126 A1 WO 2006009126A1 JP 2005013187 W JP2005013187 W JP 2005013187W WO 2006009126 A1 WO2006009126 A1 WO 2006009126A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- group
- formula
- bis
- photosensitive member
- resin
- Prior art date
Links
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
-
- 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
- G03G5/0664—Dyes
- G03G5/0666—Dyes containing a methine or polymethine group
- G03G5/0672—Dyes containing a methine or polymethine group containing two or more methine or polymethine groups
-
- 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
- G03G5/056—Polyesters
-
- 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
- G03G5/05—Organic bonding materials; Methods for coating a substrate with a photoconductive layer; Inert supplements for use in photoconductive layers
- G03G5/0528—Macromolecular bonding materials
- G03G5/0596—Macromolecular compounds characterised by their physical properties
-
- 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
- G03G5/06—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
-
- 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
- G03G5/06147—Amines arylamine alkenylarylamine
- G03G5/061473—Amines arylamine alkenylarylamine plural alkenyl groups linked directly to the same aryl group
Definitions
- the present invention relates to an electrophotographic photosensitive member, and more particularly to an electrophotographic photosensitive member having good wear resistance and the like.
- Electrophotographic technology is widely used in fields such as copiers and various printers because of its immediacy and high-quality images.
- As the core of electrophotographic technology is widely used in fields such as copiers and various printers because of its immediacy and high-quality images.
- Photoconductors using organic photoconductive materials that have the advantages of non-polluting, easy film formation, and easy manufacture! Speak.
- photoconductive fine powder is dispersed in a binder resin! /
- a known dispersion type photoreceptor and a laminated type photoreceptor in which a charge generation layer and a charge transfer layer are laminated are known.
- the laminated type photoconductor can provide a highly sensitive photoconductor by combining a charge generating material and a charge transfer material with high efficiency, and a photoconductor having a wide material selection range and high safety.
- the photosensitive layer can be easily formed by coating and is advantageous in terms of cost and productivity, it has been developed and put into practical use.
- an electrophotographic photoreceptor is repeatedly used in an electrophotographic process, that is, a cycle of charging, exposure, development, transfer, tallying, static elimination, and the like, the electrophotographic photoreceptor deteriorates due to various stresses during that time.
- Such deterioration includes, for example, strongly oxidative ozone generated from a corona charger normally used as a charger, chemical damage caused by NOx to the photosensitive layer, and carrier (current) generated by image exposure.
- There are chemical and electrical degradations such as flowing through the layer, and decomposing the photosensitive layer composition by static electricity or external light.
- the photosensitive layer receives such a load.
- the photosensitive layer is usually composed of a binder resin and a photoconductive substance, and the binder resin substantially determines the strength.
- the amount of the photoconductive substance doped is so large that sufficient mechanical strength is obtained.
- each layer constituting these electrophotographic photoreceptors is usually prepared by dip coating, spray coating, nozzle coating, bar coating with a coating solution containing a photoconductive substance, Noinda rosin, etc. on a support. It is formed by coating, roll coating, blade coating or the like.
- a known method such as coating is applied as a coating solution obtained by dissolving a substance contained in a layer in a solvent.
- the coating solution is prepared in advance and stored.
- Binder resins for the photosensitive layer include polymethylmethacrylate, polystyrene, polysalt, vinyl polymers such as vinyl, and copolymers thereof, polycarbonate, polyester, polysulfone, phenoxy, epoxy, and silicone.
- Various types of thermosetting resin are used for thermoplastic resin such as fat.
- polycarbonate resin has a relatively excellent performance, and various polycarbonate resins have been developed and put to practical use (Patent Documents 1 to 4). reference).
- an electrophotographic photoreceptor using a polyarylate resin sold under the trade name “U-polymer” as a binder may have improved sensitivity compared to the case of using polycarbonate.
- U-polymer sold under the trade name “U-polymer”
- U-polymer sold under the trade name “U-polymer”
- Patent Document 1 Japanese Patent Laid-Open No. 50-098332
- Patent Document 2 Japanese Patent Application Laid-Open No. 59-071057
- Patent Document 3 Japanese Patent Application Laid-Open No. 59-184251
- Patent Document 4 Japanese Patent Laid-Open No. 05-0221478
- Patent Document 5 Japanese Patent Laid-Open No. 56-135844
- Patent Document 6 Japanese Patent Laid-Open No. 03-006567
- Patent Document 7 JP-A-10-288845
- the conventional electrophotographic photosensitive member as described above is subjected to a practical load such as development with toner, friction with paper, friction with a cleaning member (blade), and the like.
- a practical load such as development with toner, friction with paper, friction with a cleaning member (blade), and the like.
- problems such as wear and scratches on the surface, and the present situation is that the printing performance is limited in practical use.
- the electrophotographic photosensitive member using the binder resin known in the past is often insufficient in terms of electrical properties, although the mechanical strength and the like are improved.
- many coating solutions for forming a photosensitive layer prepared by dissolving such a binder resin in an appropriate solvent have poor solution stability, which causes cloudiness and precipitation of the coating solution. As a result, there are problems such as insoluble binder resin.
- the present invention has been made to solve such a problem.
- the object of the present invention is a binder resin having excellent wear resistance to practical loads, excellent electrical characteristics while maintaining high mechanical strength, and high stability of a coating solution for forming a photosensitive layer. It is to provide an electrophotographic photoreceptor containing
- the present inventors have sufficient mechanical properties by including polyester resin having a specific chemical structure in the photosensitive layer, and are used as a coating solution for forming a photosensitive layer. It has been found that an electrophotographic photoreceptor having high solubility in a solvent, excellent coating solution stability and excellent electrical characteristics can be obtained, and the present invention has been completed based on such knowledge.
- the present invention it is provided with a conductive substrate and a photosensitive layer provided on the conductive substrate, and the photosensitive layer is represented by the following general formulas (1) to (5). At least one type of repeating structure There is provided an electrophotographic photoreceptor containing a polyester resin having the same.
- A is a compound having a structure represented by the following formula (A).
- Ra 2 is a monovalent substituent that may independently have a hydrogen atom or a substituent, and n and m are each independently an integer of 0 to 4.
- B is a compound having a structure represented by the following formula (B).
- R 1 and R 2 each independently represents a hydrogen atom, an alkyl group, an aryl group, a halogen group, or an alkoxy group.
- C is a compound having a structure represented by the following formula (C).
- R 3 and R 4 each independently represents a hydrogen atom, an alkyl group, an aryl group, a halogen group, or an alkoxy group.
- D is a compound having a structure represented by the following formula (D).
- E is a compound having a structure represented by the following formula (E).
- R 5 and R 6 each independently represents a hydrogen atom, an alkyl group, an aryl group, a halogen group, or an alkoxy group.
- F is a compound having a structure represented by the following formula (F).
- X 2 represents a single bond or a divalent group
- R 7 and R 8 each independently represent a hydrogen atom, an alkyl group, an aryl group, a halogen group, or an alkoxy group.
- k and 1 are each independently an integer of 1 to 4.
- G is a compound having a structure represented by the following formula (G).
- an electrophotographic photoreceptor excellent in wear resistance and the like can be obtained.
- the electrophotographic photosensitive member to which this exemplary embodiment is applied includes a photosensitive layer provided on a predetermined conductive substrate, and the photosensitive layer is represented by the general formulas (1) to (5) described above. It contains at least one polyester resin having a repeating structure.
- a charge generation layer mainly composed of a charge generation material and a charge transport layer mainly composed of a charge transport material and a binder-resin are laminated on a conductive substrate.
- Multilayer type photoreceptors Dispersion type (single layer type) photoreceptors having a photosensitive layer in which a charge generating substance is dispersed in a layer containing a charge transport substance and a binder resin on a conductive substrate.
- the polyester resin having the repeating structure represented by the general formula (1) to the general formula (5) described above is usually used for a layer containing a charge transport material, and preferably used for the charge transport layer of the multilayer photosensitive layer. Used.
- Examples of the material of the conductive substrate used in the electrophotographic photoreceptor to which the exemplary embodiment is applied include metal materials such as aluminum, aluminum alloy, stainless steel, copper, and nickel; metal, carbon, tin oxide, and the like.
- Examples of the form of the conductive substrate include a drum shape, a sheet shape, and a belt shape.
- a conductive material having an appropriate resistance value may be coated on a conductive substrate using a metal material for the purpose of controlling conductivity, surface properties, etc., or covering defects.
- anodization treatment, chemical conversion film treatment, or the like may be performed in advance.
- anodizing treatment it is desirable to perform sealing treatment by a known method.
- the surface of the conductive substrate may be smooth, by a special cutting method or polishing treatment, or by mixing particles of an appropriate particle size with the material constituting the conductive substrate. It may be roughened.
- a charge transport material and a binder resin are included, and a charge transport layer that retains an electrostatic charge and transports charges generated by exposure, and a charge generation material. And a charge generation layer that generates charge pairs by exposure.
- a charge blocking layer for blocking the charge injection of the conductive substrate, a light diffusion layer for diffusing light such as laser light and preventing the generation of interference fringes, etc. May have.
- the photosensitive layer has a charge transport material and a charge generation material dispersed in a binder resin.
- a polyester resin having a repeating structure represented by the following general formulas (1) to (5) as a binder resin Contains at least one of these.
- the viscosity average molecular weight (Mv) of the polyester resin having a repeating structure represented by the general formula (1) to the general formula (5) is not particularly limited, but is usually 10,000 or more, preferably 15, 0000 or more, more preferably ⁇ is 20,000 or more, however, usually 300,000 or less, preferably ⁇ is 200,000 or less, more preferably 100,000 or less. If the viscosity average molecular weight is excessively small, the mechanical strength of the polyester resin is lowered, which is not practical. On the other hand, if the viscosity average molecular weight is excessively large, it is difficult to coat and form the photosensitive layer to an appropriate thickness.
- A is a compound having a dicarboxylic acid residue represented by the following formula (A) in the molecule.
- Ra 2 is a monovalent substituent which may independently have a hydrogen atom or a substituent, and n and m are each independently an integer of 0 to 4.
- the monovalent substituent for Ra 2 include alkyl groups having 1 to 8 carbon atoms; aryl groups such as phenyl groups and naphthyl groups; halogen groups such as fluorine atoms, chlorine atoms, bromine atoms and iodine atoms; Examples thereof include alkoxy groups such as a methoxy group, an ethoxy group, and a butoxy group.
- the alkyl group is more preferable, the alkyl group having 1 to 8 carbon atoms is more preferable, and further more preferable. Is an alkyl group having 1 to 2 carbon atoms.
- dicarboxylic acid residue represented by the formula (A) include, for example, diphenyl ether 2, 2, -dicarboxylic acid residue, diphenyl ether-2,3, -dicarboxylic acid residue, diphenyl ether 2 , 4'-dicarboxylic acid residue, diphenyl ether 3,3, -dicarboxylic acid residue, diphenyl ether 3,4'-dicarboxylic acid residue, diphenyl ether 4,4'-dicarboxylic acid residue, etc. Can be mentioned.
- diphenyl ether 2,2'-dicarboxylic acid residue diphenyl ether 2,4'-dicarboxylic acid residue
- diphenol ether 4, 4 ′ Diphenyl ether 4,4′-dicarboxylic acid residues are particularly preferred, where dicarboxylic acid residues are preferred.
- diphenyl ether dicarboxylic acid residue (A) can be used in combination of a plurality of compounds as necessary.
- B is a compound having a divalent phenol residue represented by the following formula (B) in the molecule.
- R 1 and R 2 each independently represent a hydrogen atom, an alkyl group, an aryl group, or a halogen atom. Represents a group or an alkoxy group.
- the aryl group is preferably a phenyl group or a naphthyl group.
- alkoxy group a fluorine atom, a chlorine atom, a bromine atom, an iodine atom and the like are preferable as the halogen group, and a methoxy group, an ethoxy group, a butoxy group and the like are preferable.
- alkyl group an alkyl group having 1 to LO carbon atoms is preferable, more preferably an alkyl group having 1 to 8 carbon atoms, and particularly preferably an alkyl group having 1 to 8 carbon atoms.
- divalent phenolic compound that becomes the divalent phenol residue represented by the formula (B) include, for example, bis (2 hydroxyphenol) methane, (2 hydroxyphenol) ) (3 hydroxyphenyl) methane, (2 hydroxyphenol) (4 hydroxyphenol) methane, bis (3-hydroxyphenol) methane, (3-hydroxyphenol) (4-hydroxyphenol) -L) methane, bis (4hydroxyphenol) methane, bis (2hydroxy-1-methylphenol) methane, bis (2hydroxy-1-ethylphenyl) methane, (2-hydroxy-1-methylphenol) (3 hydroxy-4-methylphenyl) methane, (2 hydroxy-1-ethylphenyl) (3 hydroxy-4-methylphenyl) methane, (2-hydroxy-1-methylphenyl) (4 hydroxy-1-methylphenyl) Le) Methane, (2 Loxy-3-ethylphenyl) (4-hydroxy-3-ethylphenyl) methane, bis (3-hydroxy-4-methylphen
- C is a compound having a divalent phenol residue represented by the following formula (C) in the molecule.
- R 3 and R 4 each independently represents a hydrogen atom, an alkyl group, an aryl group, a halogen group, or an alkyl group.
- the fluorine group, naphthyl group, etc. as the aryl group are preferred fluorine atoms as the halogen group.
- the alkoxy group preferred are a chlorine atom, a bromine atom, an iodine atom and the like, a methoxy group, an ethoxy group, and a butoxy group are preferred.
- the alkyl group is preferably an alkyl group having 1 to 10 carbon atoms, more preferably an alkyl group having 1 to 8 carbon atoms, and particularly preferably an alkyl group having 1 to 2 carbon atoms.
- divalent phenolic compound that becomes a divalent phenol residue represented by the formula (C) include, for example, 1, 1-bis (2-hydroxyphenol) ethane, 1 — (2-Hydroxyphenol) —1— (3-Hydroxyphenol) ethane, 1— (2-hydroxyphenol) ethane 1— (4-hydroxyphenyl) ethane, 1, 1—bis (3-hydroxyphenol) ethane, 1— (3 hydroxyphenol) 1— (4 hydroxyphenol) ethane, 1, 1 bis (4-hydroxyphenol) ethane, 1, 1-bis (2 Hydroxy-3-methylphenol), 1,1-bis (2-hydroxy-3-ethylphenyl) ethane, 1- (2-hydroxy-1-methylphenol) -1- 1- (3-hydroxy-4-methylphenol) 1- (2 hydroxy-l-ethylphenyl) 1-- (3 hydroxy-l-ethylphenyl) ethane, 1- (2 hydro Shi one 3-methylol 1- (4 Hydroxy-3-methyl)
- D is a compound having a divalent phenol residue structure represented by the following formula (D) in the molecule.
- divalent group of the divalent phenol residue represented by the formula (D).
- suitable divalent groups for X 1 include a sulfur atom, an oxygen atom, a sulfo group, and a cycloalkylene. Group, or (one CR 17 R 18 ) and the like.
- R 17 and R 18 each independently represents a hydrogen atom, an alkyl group, an aryl group, a halogen group or an alkoxy group.
- a phenol group, a naphthyl group, etc. are preferred as the aryl group.
- alkoxy group in which a fluorine atom, chlorine atom, bromine atom, iodine atom or the like is preferable as the halogen group, a methoxy group, an ethoxy group, a butoxy group or the like is preferable.
- the alkyl group is preferably an alkyl group having 1 to 10 carbon atoms, more preferably an alkyl group having 1 to 8 carbon atoms, and particularly preferably an alkyl group having 1 to 2 carbon atoms.
- X 1 can be expressed as O—, —S—, —SO—, —SO—, —CO—. , — CH-
- a divalent phenol compound that is a divalent phenol residue represented by the formula (D), f, if it is arranged, 3, 3 ', 5, 5, 1 tetramethylolene 4, 4 , 1 dihydroxybiphenyl, 2, 4, 3,, 5'-tetramethyl-3, 4'-dihydroxybiphenyl, 2, 2 ', 4, 4'-tetramethyl-3, 3, monodihydroxybiphenyl, bis (4-hydroxy-1,3,5-dimethylphenyl) ether, (4 hydroxy-1,3,5 dimethylphenol) (3 hydroxy-1,4 dimethylphenol) ether, bis (3 hydroxy-2,4 dimethylphenol) Ether), bis (4-hydroxy-1,3,5-dimethylphenyl) methane, (4-hydroxy-1,3,5-dimethylphenyl) (3 hydroxy-1,2,4-dimethylphenol) methane, bis (3 hydroxy) 1,2,4 Dimethylphenol) methane, 1,1-bis (4 hydroxy)
- E is a compound having a divalent phenol residue structure represented by the following formula (E) in the molecule. )
- R 5 and R 6 each independently represent a hydrogen atom, an alkyl group, an aryl group, or a halogen group.
- a phenyl group, a naphthyl group, etc. as preferred aryl groups are preferred halogen groups.
- Preferred alkoxy groups such as fluorine atom, chlorine atom, bromine atom and iodine atom are methoxy group, ethoxy group and butoxy group.
- the alkyl group is preferably an alkyl group having 1 to 10 carbon atoms, more preferably an alkyl group having 1 to 8 carbon atoms, and particularly preferably an alkyl group having 1 to 2 carbon atoms.
- divalent phenolic compound that becomes the divalent phenol residue represented by the formula (E) include, for example, bis (2 hydroxyphenol) ether, (2 hydroxyphenol) ) (3 hydroxyphenyl) ether, (2 hydroxyphenol) (4 hydroxyphenol) ether, bis (3-hydroxyphenol) ether, (3-hydroxyphenol) (4-hydroxy) Phenyl) ether, bis (4hydroxyphenol) ether, bis (2hydroxy-3-methylphenol) ether, bis (2hydroxy-3-ethylphenyl) ether, (2-hydroxy-1-methylphenol) -L) (3-hydroxy-4-methylphenyl) ether, (2-hydroxy-3-ethylphenyl) (3-hydroxy-4-ethylphenyl) ether, (2-hydroxy-3-methylphenyl) (4-hydroxy) -3 (Luphenyl) ether, (2hydroxy-3-ethylphenyl) ether, 4-bis (3-hydroxyphenyl) ether, bis (3-hydroxy-4-methylphenol) ether, bis (3-hydroxy-4-methylphenol)
- the polyester resin having a repeating structure represented by the general formula (5) is a co-polymer of a repeating structure represented by one (AF) and a repeating structure represented by (GF) one.
- the copolymer may be a random copolymer of the above-mentioned two types of repeating units or a block copolymer.
- a block copolymer a multi-block copolymer may be used.
- a random copolymer is preferable from the viewpoint of ease of production.
- F is a compound having a divalent phenol residue structure represented by the following formula (F) in the molecule.
- X 2 of the divalent phenol compound that is a divalent phenol residue represented by the formula (F) is a single bond or a divalent group.
- Suitable divalent groups include, for example, sulfur.
- An atom, an oxygen atom, a sulfonyl group, a cycloalkylene group, (—CR 19 R 2G ) and the like can be mentioned.
- R 19 and R 2G each independently represent a hydrogen atom, an alkyl group, an aryl group, a halogen group, or an alkoxy group.
- a fullyl group, a naphthyl group, etc. are preferred halogen groups as the aryl group.
- an alkoxy group in which a fluorine atom, a chlorine atom, a bromine atom, an iodine atom or the like is preferable a methoxy group, an ethoxy group, a butoxy group, or the like is preferable.
- the alkyl group is preferably an alkyl group having 1 to L0 carbon atoms, more preferably an alkyl group having 1 to 8 carbon atoms, and particularly preferably an alkyl group having 1 to 2 carbon atoms.
- X 2 can be represented by O—, —S—, — SO—, — SO —, one CO—, —CH one, —CH (CH 2) one, —C (CH 2) one, cyclohexylide And the like.
- R 7 and R 8 each independently represents a hydrogen atom, an alkyl group, an aryl group, a halogen group, or an alkyl group.
- the fluorine group, naphthyl group, etc. as the aryl group are preferred fluorine atoms as the halogen group.
- Preferred alkoxy groups such as chlorine atom, bromine atom and iodine atom are methoxy group, ethoxy group and butoxy group.
- an alkyl group having 1 to carbon atoms: LO is more preferable, and an alkyl group having 1 to 8 carbon atoms is particularly preferable, and an alkyl group having 1 to 2 carbon atoms is particularly preferable.
- K and 1 each independently represent an integer of 1 to 4.
- Particularly preferred as specific examples of the formula (F) are, for example, bis (4-hydroxyphenol) methane, (2-hydroxyphenol) (4-hydroxyphenol) methane, bis (2- Hydroxyphenol) methane, 1,1-bis (4-hydroxyphenol) ethane, 2,2-bis (4-hydroxyphenol) propane, 1,1-bis (4-hydroxyphenol) ) Cyclohexane, bis (4-hydroxyphenyl) ketone, bis (4-hydroxyphenol) ether, bis (4-hydroxy-1-methylphenyl) methane, 1,1-bis (4-hydroxy) 3-methylphenyl) ethane, 2,2-bis (4-hydroxy-1-methylphenol) propane, 1,1-bis (4-hydroxy-3-methylphenol) cyclohexane, bis (4 -Hydroxy-1-3-methylphenol) Bis (4-hydroxy-1- 3, 5 Dimethylphenol) methane, 1,1-bis (4-hydroxy-1,3,5-dimethylphenol) ethane, 2,2-bis (4-hydroxy-1,3,5-dimethylphenol) propane, 1,
- G is a compound having a dicarboxylic acid residue structure represented by the following formula (G) in the molecule.
- X 3 is a divalent group. Suitable divalent groups for X 3 include, for example, saturated aliphatic hydrocarbon divalent groups such as a methylene group and an ethylene group; p-phenylene group, 1,4-naphthylene group, 3-methyl-p-phenol- And an arylene group which may have a substituent such as a lenene group.
- dicarboxylic acid residue represented by the formula (G) include, for example, a dicarboxylic acid residue of a saturated aliphatic hydrocarbon such as an adipic acid residue, a suberic acid residue, a sebacic acid residue; Dicarboxylic acid residues of aromatic hydrocarbons such as phthalic acid residues, isophthalic acid residues, terephthalic acid residues, toluene 2,5 dicarboxylic acid residues; P-xylene 2,5 dicarboxylic acid residues, pyridine-2 , 3 Dicarboxylic acid residue, Pyridine— 2, 4 Dicarboxylic acid residue, Pyridine 2,5 Dicanolevonic acid residue, Pyridine 2,6 Dicanolevonic acid residue, Pyridine 3,4-dicarboxylic acid residue, Pyridine 3,5-dicarboxylic acid Heterocyclic dicarboxylic acid residues such as acid residues; condensed polycyclic dicarboxylic acid residues such as acid residues;
- dicarboxylic acid residues of aromatic hydrocarbons More preferred are dicarboxylic acid residues of aromatic hydrocarbons, and particularly preferred are isophthalic acid residues and terephthalic acid residues. These dicarboxylic acid residues can be used in combination.
- the photosensitive layer in the electrophotographic photoreceptor to which the exemplary embodiment is applied includes a polyester resin having a repeating structure represented by the general formula (1) to the general formula (5), and the like. It is also possible to use a mixture of Examples of other resins mixed here include, but are not limited to, bully polymers such as polymethylmethalate, polystyrene, and polysalt-polybutyl or copolymers thereof; polycarbonate resins, polyester resins, polyester polycarbonate resins. Examples thereof include thermoplastic resins such as fats, polysulfone resins, phenoxy resins, epoxy resins, and silicone resins, and various thermosetting resins. Among these rosins, polycarbonate Tortilla is preferred. Moreover, the mixing ratio of the coffin used together is not particularly limited, but usually
- the production method of the polyester resin having the repeating structure represented by the general formula (1) to the general formula (5) is not particularly limited, and examples thereof include well-known methods such as an interfacial polymerization method, a melt polymerization method, and a solution polymerization method. Polymerization methods can be used.
- a solution in which a divalent phenol component is dissolved in an alkaline aqueous solution and a solution of a halogenated hydrocarbon in which an aromatic dicarboxylic acid chloride component is dissolved are mixed.
- a quaternary ammonium salt or a quaternary phosphonium salt may be present as a catalyst.
- the polymerization temperature is preferably in the range of 0 ° C to 40 ° C, and the polymerization time is preferably in the range of 2 hours to 20 hours from the viewpoint of productivity.
- alkali component used in the interfacial polymerization method examples include alkali metal hydroxides such as sodium hydroxide and potassium hydroxide.
- the amount of alkali used is preferably in the range of 1.01 to 3 equivalents of the phenolic hydroxyl group contained in the reaction system.
- halogenated hydrocarbon examples include dichloromethane, chloroform, 1,2-dichloroethane, trichloroethane, tetrachloroethane, dichlorobenzene and the like.
- Examples of the quaternary ammonium salt or quaternary phosphonium salt used as a catalyst include, for example, salts of tertiary alkylamines such as tributylamine and trioctylamine such as hydrochloric acid, bromic acid, and iodic acid; Benzyltriethylammonium chloride, benzyltrimethylammonium chloride, benzyltributylammonium chloride, tetraethylammonium chloride, tetraptylammonium chloride, tetrabutylammonium chloride bromide, trioctylmethylammonium chloride, tetrabutylphospho -Umbromide, triethyloctadecylphospho-umbromide, N-laurylpyridumumurorai And lauryl picolium chloride.
- tertiary alkylamines such as tributylamine and trioct
- a molecular weight regulator in the interfacial polymerization method, can be used.
- Molecular weight regulators include, for example, phenol, o, m, p-cresol monole, o, m, p-ethinorephenol, o, m, ⁇ -propyl phenol, ⁇ , m, p— (tert —Butyl) phenol, pentylphenol, hexylphenol, octylphenol, norphenol, 2,6-dimethylphenol derivatives, alkylphenols such as 2-methylphenol derivatives; o, m, p-phenol etc.
- Monofunctional phenols such as acetic acid chloride, butyric acid chloride, octyl acid chloride, benzoyl chloride, benzenesulfur chloride, benzenesulfuryl chloride, sulfier chloride, benzenephosphoryl chloride or their substitutes
- Examples include functional acid halides.
- molecular weight regulators o, m, p- (tert-butyl) phenol, 2,6-dimethylphenol derivatives, 2-methylphenol derivatives are preferred because of their high molecular weight controllability and solution stability. It is. Particularly preferred are p- (tert-butyl) phenol, 2,3,6-trimethylphenol, and 2,3,5-trimethylphenol.
- the charge generating layer constituting the photosensitive layer contains a charge generating substance.
- the charge generating substance include selenium and its alloys, cadmium sulfate, and other inorganic photoconductive materials; phthalocyanine pigments, azo pigments, quinacridone pigments, indigo pigments, perylene pigments, polycyclic quinone pigments, Examples include various photoconductive materials such as organic pigments such as anthrone pigments and benzimidazole pigments. Among these, organic pigments, phthalocyanine pigments, and azo pigments are particularly preferable.
- the fine particles of these charge generation materials include, for example, polyester resin, polyacetate acetate, polyacrylic acid ester, polymethacrylic acid ester, polyester, polycarbonate, polybulacetocetal, polybulupropional, polybutyral, phenoxy.
- binder resins such as resin, epoxy resin, urethane resin, cellulose ester, cellulose ether.
- the amount of the substance used is not particularly limited, but it is usually used in the range of 30 to 500 parts by weight with respect to 100 parts by weight of the binder resin.
- the film thickness of the charge generation layer is usually 0.1 ⁇ m to 1 ⁇ m, preferably 0.15 ⁇ m to 0.6 ⁇ m.
- a phthalocyanine compound is used as the charge generation material
- a metal such as metal-free phthalocyanine, copper, indium, gallium, tin, titanium, zinc, vanadium, silicon, germanium, etc.
- coordinated phthalocyanines such as acids and halides thereof are used.
- ligands to trivalent or higher metal atoms include oxygen atoms, chlorine atoms, hydroxyl groups, alkoxy groups, and the like.
- X-type, ⁇ -type metal-free phthalocyanine, ⁇ -type, B-type, D-type, etc. tital phthalocyanine, vanadyl phthalocyanine, closed indium phthalocyanine, closed mouth gallium phthalocyanine, hydroxygallium phthalate Losyanine and the like are preferred.
- a type and B type are shown by W. Heller et al. As Phase I and Phase II, respectively (Ze it. Kristallogr. 159 (1982) 173 ), A type is known as stable type.
- Type D is a crystal type that shows a clear peak at a diffraction angle of 2 ⁇ ⁇ 0.2 ° 3 ° in powder X-ray diffraction using CuK strands.
- the phthalocyanine compound only a single compound may be used, or several mixed states may be used.
- the mixed state that can be placed in the phthalocyanine compound or the crystalline state the respective constituent elements may be mixed and used later, or the process of producing a phthalocyanine compound such as synthesis, pigmentation, crystallization, etc. In this case, a mixed state may be generated.
- acid paste treatment, grinding treatment, solvent treatment, etc. are known!
- the charge transporting layer constituting the photosensitive layer contains a charge transporting substance.
- charge transport materials include aromatic tro compounds such as 2,4,7-tri-trofluorenone; Cyan compounds such as tetracyanquinodimethan; electron-absorbing materials such as quinones such as diphenoquinone.
- Heterocyclic compounds such as carbazole derivatives, indole derivatives, imidazole derivatives, oxazole derivatives, pyrazole derivatives, oxadiazole derivatives, pyrazoline derivatives, thiadiazole derivatives; aniline derivatives, hydrazone compounds, aromatic amine derivatives, stilbenes Derivatives, butadiene derivatives, enamine compounds or those in which a plurality of these compounds are bonded; or an electrophilic substance such as a polymer having a group consisting of these compounds in the main chain or side chain.
- a power rubazole derivative, a hydrazone derivative, an aromatic amine derivative, a stilbene derivative, a butadiene derivative, and a compound in which a plurality of these derivatives are combined are preferred, and a plurality of aromatic amine derivatives, stilbene derivatives, and butadiene derivatives are preferred.
- the one that is combined is preferred.
- charge transport materials a compound having a structure represented by the following general formula (6) is preferably used.
- m 1 and m 2 each independently represents 0 or 1;
- Q represents a direct bond or a divalent residue.
- R 9 to R 16 each independently represent a hydrogen atom, an alkyl group that may have a substituent, an aryl group that may have a substituent, or a heterocyclic group that may have a substituent.
- ⁇ Each independently represents an integer of 0-4.
- Ai ⁇ Ar 6 may be bonded to each other to form a cyclic structure.
- R 9 to R 16 are each independently a hydrogen atom, an alkyl group which may have a substituent, an aryl group which may have a substituent, May have a substituent
- An aralkyl group and a heterocyclic group which may have a substituent are represented.
- examples of the alkyl group include a methyl group, an ethyl group, a propyl group, an isopropyl group, a butyl group, a pentyl group, a hexyl group, a heptyl group, a cyclopentyl group, and a cyclohexyl group.
- an alkyl group having 1 to 6 carbon atoms is preferable.
- examples thereof include a benzyl group and a phenethyl group, and an aralkyl group having 7 to 12 carbon atoms is preferable.
- aryl group examples include a phenyl group, a tolyl group, a xylyl group, a naphthyl group, and a pyrenyl group, and an aryl group having 6 to 12 carbon atoms is preferable.
- the heterocyclic group is preferably a heterocyclic ring having aromaticity, such as a furyl group, a chenyl group, or a pyridyl group, and a monocyclic aromatic heterocyclic ring is more preferable.
- R 7 to R 14 are a methyl group and a phenyl group.
- 6 are each independently an arylene group which may have a substituent or a divalent heterocyclic group which may have a substituent.
- m 1 and m 2 each independently represents 0 or 1;
- the aryl group includes a phenyl group, a tolyl group, a xylyl group, a naphthyl group, a pyrenyl group, and the like, and an aryl group having 6 to 14 carbon atoms is preferable; And a phenylene group, and a phenylene group is preferred.
- the monovalent heterocyclic group is preferably a heterocyclic ring having aromaticity, and examples thereof include a furyl group, a chenyl group, a pyridyl group, and the like. More preferred are group heterocycles.
- the divalent heterocyclic group is preferably a heterocyclic ring having aromaticity, such as a pyridylene group or a chalene group, and a monocyclic aromatic heterocyclic ring is more preferable. Of these, most preferred are Ar 1 and Ar 2 which are phenyl groups, and Ar 3 is a phenyl group.
- R 9 to R 16 and 8 to 8 ! Of the groups represented by 6 , an alkyl group, aryl The group, aralkyl group, and heterocyclic group may further have a substituent.
- substituents include halogen atoms such as fluorine atom, chlorine atom, bromine atom and iodine atom; methyl group, ethyl group, propyl group, isopropyl group, butyl group, isobutyl group, S-butyl group, tert-butyl Group, pentyl group, hexyl group, cyclopentyl group, cyclohexyl group and other alkyl groups; methoxy group, ethoxy group, propyloxy group and other alkoxy groups; methylthio group, ethylthio group and other alkylthio groups; vinyl group, aryl group Alkenyl groups such as benzyl group, naphthylmethyl
- substituents may be bonded to each other to form a cyclic hydrocarbon group or a heterocyclic group via a single bond, a methylene group, an ethylene group, a carbonyl group, a vinylidene group, an ethylene group or the like.
- preferred substituents include a halogen atom, a cyano group, a hydroxyl group, an alkyl group having 1 to 6 carbon atoms, an alkoxy group having 1 to 6 carbon atoms, an alkylthio group having 1 to 6 carbon atoms, and a carbon number.
- examples include 6-12 aryloxy groups, 6-12 carbonylthio groups, and dialkylamino groups having 2-8 carbon atoms, with halogen atoms, alkyl groups having 1-6 carbon atoms, and fuller groups being more preferred.
- a methyl group and a phenyl group are particularly preferred.
- Q represents a direct bond or a divalent residue
- a preferable divalent residue is a group 16 atom, an alkylene which may have a substituent, a substituent.
- o represents an oxygen atom
- S represents a sulfur atom
- Z represents an arylene group or a substituent which may have a substituent, and represents an alkylene group).
- the alkylene group constituting Q is preferably one having 1 to 6 carbon atoms, more preferably a methylene group or an ethylene group. Further, among the cycloalkylidene groups, those having 5 to 8 carbon atoms are preferred, and cyclopentylidene groups and cyclohexylidene groups are more preferred. As the arylene group, those having 6 to 14 carbon atoms are preferable, and a phenylene group and a naphthylene group are more preferable.
- the alkylene group, arylene group, and cycloalkylidene group may have a substituent.
- Preferred substituents include a hydroxyl group, a nitro group, a cyano group, a halogen atom, and an alkyl group having 1 to 6 carbon atoms. And an alkyl group having 1 to 6 carbon atoms and an aryl group having 6 to 14 carbon atoms.
- charge transporting material contained in the charge transporting layer constituting the photosensitive layer of the electrophotographic photoreceptor to which the exemplary embodiment is applied are described in, for example, JP-A-9-244278 And arylamine compounds described in JP-A-2002-275133. These charge transport materials may be used alone or in combination.
- the charge transport layer is formed in the form in which these charge transport materials are bound to the binder resin.
- the charge transport layer may consist of a single layer V, or may be a stack of layers with different components or composition ratios!
- the ratio of the binder resin comprising the polyester resin having the repeating structure represented by the general formula (1) to the general formula (5) and the charge transport material is usually 100 parts by weight of the binder resin.
- the charge transport material is used in the range of 30 to 200 parts by weight, preferably 40 to 150 parts by weight.
- the film thickness of the charge transport layer is usually 5 m to 50 m, preferably 10 ⁇ m to 45 ⁇ m.
- the charge transporting layer has well-known plasticizers, antioxidants, ultraviolet absorbers, etc. in order to improve film forming properties, flexibility, coating properties, stain resistance, gas resistance, light resistance, etc.
- Additives such as electron-withdrawing compounds, dyes, pigments and leveling agents may be included.
- the antioxidant include hindered phenol compounds and hindered amine compounds.
- dyes and pigments include various pigment compounds and azo compounds.
- the above-described charge generating material is dispersed in a charge transport medium composed of the above-described binder resin and a charge transport material.
- the particle size of the charge generation material needs to be sufficiently small, preferably 1 ⁇ m or less, more preferably 0.5 m or less. If the amount of the charge generating material dispersed in the photosensitive layer is excessively small, sufficient sensitivity cannot be obtained. If the amount is excessively large, detrimental effects such as a decrease in chargeability and a decrease in sensitivity occur.
- the amount of the charge generating material used is preferably in the range of 0.5 to 50% by weight, more preferably 1 to 20% by weight.
- the film thickness of the dispersion type photosensitive layer is usually 5 ⁇ m to 50 ⁇ m, more preferably 10 ⁇ m to 45 ⁇ m. Also in this case, a known plasticizer for improving film formability, flexibility, mechanical strength, an additive for suppressing residual potential, a dispersion aid for improving dispersion stability, Leveling agents and surfactants for improving coating properties, such as silicone oil, fluorine oil and other additives may be added.
- a protective layer may be provided on the dispersion-type photosensitive layer for the purpose of preventing the wear-out of the dispersion-type photosensitive layer or preventing the deterioration of the dispersion-type photosensitive layer due to discharge products generated by the charger and the like. .
- the surface layer may contain fluorine-based resin, silicone resin, and the like.
- grains of an inorganic compound may be included.
- the method for preparing the electrophotographic photosensitive member to which the exemplary embodiment is applied is not particularly limited, but usually has a repeating structure represented by the general formula (1) to the general formula (5) on a conductive substrate.
- the photosensitive layer-forming coating solution containing rosin is applied by a known method such as a dip coating method, a spray coating method, a nozzle coating method, a bar coating method, a roll coating method, or a blade coating method.
- the dip coating method is preferred because of its high productivity.
- an undercoat layer may be provided between the conductive substrate and the photosensitive layer in order to improve adhesion and blocking properties.
- an undercoat layer For example, rosin and rosin in which particles such as metal oxides are dispersed are used.
- the metal oxide particles used for the undercoat layer include metal oxide particles containing one kind of metal element such as titanium oxide, acid oxide aluminum, silicon oxide, zirconium oxide, zinc oxide, iron oxide and the like.
- metal oxide particles containing a plurality of metal elements such as calcium titanate, strontium titanate, and barium titanate. These metal oxide particles may use only one kind of particles! A plurality of types of particles may be mixed and used.
- acid titanium and acid aluminum are preferable, and acid titanium is particularly preferable.
- the surface of the titanium oxide particles is treated with an inorganic material such as tin oxide, aluminum oxide, antimony oxide, zirconium oxide, and silicon oxide, or an organic material such as stearic acid, polyol, and silicon.
- an inorganic material such as tin oxide, aluminum oxide, antimony oxide, zirconium oxide, and silicon oxide, or an organic material such as stearic acid, polyol, and silicon.
- Any of rutile, anatase, brookite, and amorphous can be used as the crystal form of the titanium oxide particles.
- a plurality of crystal states may be included.
- the particle size of the metal oxide particles is particularly preferably an average temporary particle size of lOnm or more and lOOnm or less from the viewpoint of characteristics and liquid stability, among various available forces. Is lOnm or more and 50 nm or less.
- the undercoat layer is desirably formed in a form in which metal oxide particles are dispersed in a binder resin.
- binder resins used for the undercoat layer include phenoxy, epoxy, polyvinyl pyrrolidone, polybutyl alcohol, casein, polyacrylic acid, celluloses, gelatin, starch, polyurethane, polyimide, and polyamide alone or with a curing agent.
- strengths that can be used in a hardened form alcohol-soluble copolymer polyamides, modified polyamides, and the like are preferable because they exhibit good dispersibility and coating properties.
- the compounding composition ratio of the metal oxide particles to the Norder rosin is not particularly limited, but it is usually used in the range of 10% to 500% by weight in terms of dispersion stability and coatability. Is preferable.
- the thickness of the undercoat layer is not particularly limited, but is preferably 0.1 ⁇ m to 20 ⁇ m from the viewpoint of photoreceptor characteristics and coatability. Moreover, you may add a well-known antioxidant etc. to an undercoat layer.
- FIG. 1 is a diagram illustrating an image forming apparatus.
- the image forming apparatus 10 shown in FIG. An electrophotographic photosensitive member 1 provided with a photosensitive layer containing at least one polyester resin having a repeating structure represented by the general formula (1) to the general formula (5) described above on a predetermined conductive substrate;
- a charging device 2 having a charging roller force for charging the electrophotographic photosensitive member 1, an exposure device 3 for forming an electrostatic latent image on the photosensitive surface of the electrophotographic photosensitive member 1, and a toner (T) on the surface of the electrophotographic photosensitive member 1.
- a predetermined voltage value (transfer voltage) is applied with a polarity opposite to the charging potential of the developing device 4 to be supplied and the toner (T), and the toner image formed on the electrophotographic photosensitive member 1 is transferred to the recording paper (P).
- the electrophotographic photoreceptor 1 has a drum-like shape in which a photosensitive layer containing at least one kind of the above-described polyester resin is provided on the surface of a cylindrical conductive substrate.
- the charging device 2 has a roller-type charging roller.
- the charging device 2 is often used, for example, a corona charging device such as a corotron or a scorotron, or a contact charging device such as a charging brush.
- the electrophotographic photoreceptor 1 and the charging device 2 are designed to be removable from the main body of the image forming apparatus 10 as a cartridge having both of them (hereinafter also referred to as a photoreceptor cartridge).
- a photoreceptor cartridge has been.
- the photosensitive cartridge can be removed from the main body of the image forming apparatus 10, and another new photosensitive cartridge can be attached to the main body of the image forming apparatus. You will be able to do it! /, Ru (not shown).
- the type of the exposure apparatus 3 is not particularly limited as long as it can form an electrostatic latent image on the photosensitive surface of the electrophotographic photosensitive member 1.
- Specific examples include halogen lamps, fluorescent lamps, semiconductor lasers, lasers such as He-Ne lasers, LEDs, and the like.
- the exposure can also be performed by a photoconductor internal exposure method.
- the light used for exposure is not particularly limited. For example, monochromatic light with a wavelength of 780 nm, monochromatic light with a wavelength of 600 nm to 700 nm, and a wavelength of 380 ⁇ ! Examples thereof include monochromatic light having a short wavelength of ⁇ 500 nm.
- the developing device 4 includes a developing tank 41 in which the toner (T) is stored.
- the developing tank 41 further includes an agitator 42 for stirring the toner (T) and a stored toner (T ) And a supply roller 43 for supplying to a developing roller 44 described later, the electrophotographic photosensitive member 1 and a supply port A developing roller 44 that contacts the surface of the electrophotographic photosensitive member 1 by holding the toner (T) supplied by the supply roller 43 and contacting the surface of the electrophotographic photosensitive member 1, and a regulating member 45 that contacts the developing roller 44.
- a replenishing device (not shown) for replenishing toner (T) may be attached to the developing tank 41 as well as a container such as a bottle or a cartridge!
- any device such as a dry development system such as cascade development, one-component conductive toner development, or two-component magnetic brush development, or a wet development system can be used.
- the agitator 42 is rotated by a rotation drive mechanism, and stirs the toner (T) and conveys the toner (T) to the supply roller 43 side.
- a plurality of agitators 42 may be provided with different blade shapes and sizes.
- the supply roller 43 is made of, for example, a conductive sponge.
- the developing roller 44 is also made of a metal roll made of iron, stainless steel, aluminum, nickel, or the like, or a resin roll in which a metal roll is coated with silicone resin, urethane resin, fluorine resin, or the like. The surface of the developing roller 44 may be smoothed or roughened as necessary.
- the restricting member 45 is formed of a resin blade such as silicone resin or urethane resin, a metal blade such as stainless steel, aluminum, copper, brass or phosphor bronze, or a blade obtained by coating a metal blade with resin. .
- the regulating member 45 abuts on the developing roller 44 and is pressed against the developing roller 44 side with a predetermined force by a spring or the like (a general blade linear pressure is 5 to 500 gZcm). If necessary, the regulating member 45 may be provided with a function of imparting charge to the toner (T) by frictional charging with the toner (T).
- the supply roller 43 and the developing roller 44 are rotated by a rotation drive mechanism (not shown).
- the type of toner (T) is not particularly limited, but in general, in addition to powdered toner, a polymerized toner using a suspension polymerization method, an emulsion polymerization method, or the like can be used.
- a toner having a small particle size of about 8 ⁇ m is preferred, and the toner (T) particle shape is also deviated from a potato-like sphere from a nearly spherical shape. It can be used in various ways.
- the polymerized toner is excellent in charging uniformity and transferability and is suitably used for high image quality.
- the toner (T) is stored in the toner cartridge and designed to be removable from the main body of the image forming apparatus 10, and when the toner (T) in the used toner cartridge runs out, Remove this toner cartridge from the main body of the image forming apparatus 10 A new toner cartridge can be installed. Further, a cartridge provided with the electrophotographic photosensitive member charging device 2 and the toner (T) can also be used.
- the transfer device 5 includes a transfer charger, a transfer roller, a transfer belt, and the like that are arranged to face the electrophotographic photosensitive member 1.
- a transfer charger for example, an apparatus using any method such as electrostatic transfer methods such as corona transfer, roller transfer, and belt transfer, pressure transfer method, and adhesive transfer method should be used. Can do.
- the cleaning device 6 is not particularly limited, and for example, an arbitrary cleaning device such as a brush cleaner, a magnetic brush cleaner, an electrostatic brush cleaner, a magnetic roller cleaner, or a blade cleaner can be used.
- the fixing device 7 includes an upper fixing member 71 that also has a fixing roller force, a lower fixing member 72 that is a fixing roller that comes into contact with the upper fixing member 71, and calorie heat provided inside the upper fixing member 71. And a device 73.
- the heating device 73 may be provided inside the lower fixing member 72.
- the upper fixing member 71 or the lower fixing member 72 is a known heat fixing member such as a fixing roll in which a metal tube such as stainless steel or aluminum is coated with silicone rubber, a fixing roll in which Teflon (registered trademark) resin is coated, or a fixing sheet. Can be used.
- the upper fixing member 71 or the lower fixing member 72 may be configured such that a release agent such as silicone oil is supplied in order to improve the releasability, or a pressure is forcibly applied to each other by a panel or the like.
- the type of the fixing device 7 is not particularly limited.
- a fixing device of an arbitrary system such as heat roller fixing, flash fixing, oven fixing, and pressure fixing can be provided.
- the surface (photosensitive surface) of the electrophotographic photosensitive member 1 is charged to a predetermined potential (for example, 6 OOV) by the charging device 2. At this time, charging may be performed by superimposing an AC voltage on a DC voltage that may be charged by a DC voltage. Subsequently, the photosensitive surface of the charged electrophotographic photosensitive member 1 is exposed by the exposure device 3 according to the image to be recorded, and an electrostatic latent image is formed on the photosensitive surface. Next, development of the electrostatic latent image formed on the photosensitive surface of the electrophotographic photosensitive member 1 is performed by the developing device 4.
- a predetermined potential for example, 6 OOV
- the developing device 4 thins the toner (T) supplied by the supply roller 43 with a regulating member 45 such as a developing blade and has a predetermined polarity (here, an electrophotographic photosensitive member).
- the toner is triboelectrically charged to the negative polarity and is conveyed while being carried on the developing roller 44 and brought into contact with the surface of the electrophotographic photoreceptor 1.
- the image forming apparatus 10 may have a configuration capable of performing, for example, a static elimination process in addition to the above-described configuration.
- the neutralization process is a process of neutralizing the electrophotographic photosensitive member 1 by exposing the electrophotographic photosensitive member 1, and a fluorescent lamp, an LED, or the like is used as the neutralizing device.
- the light used in the static elimination process often has a light intensity that is at least three times that of the exposure light.
- the image forming apparatus 10 may be further modified.
- the image forming apparatus 10 may be configured to perform a pre-exposure process, an auxiliary charging process, or the like, or may be configured to perform offset printing.
- Photoconductor sheet prepared in advance using an electrophotographic characteristic evaluation device compliant with the electrophotographic society measurement standard (basic and applied electrophotographic technology, edited by the Electrophotographic Society, Corona, pages 404-405) (See below) is affixed to an aluminum drum to form a cylinder, and the aluminum drum and the aluminum substrate of the photosensitive sheet are connected to each other.
- An electrical property evaluation test was performed by a cycle of exposure, potential measurement, and static elimination. Using an initial surface potential of -700V, exposure light of 780nm and neutralization light of 660 ⁇ m as monochromatic light, the surface potential (VL) at the time of exposure light exposure to 2.4 / zjZcm 2 was measured. In the VL measurement, the exposure time was set to 139 ms.
- the measurement environment was 25 ° C and relative humidity 50% (NN environment), and 5 ° C and relative humidity 10% (LL environment). The smaller the absolute value of the VL value, the better the response (unit: V).
- the results are shown in Tables
- a photoconductor sheet (described later) prepared in advance was cut into a circle having a diameter of 10 cm to prepare a test piece, and this was subjected to an abrasion test using a Taber abrasion tester (manufactured by Toyo Seiki Co., Ltd.).
- the test conditions were as follows: wear amount after 1000 rotations without load (self-weight of wear wheel) using wear wheel CS-10F in an atmosphere of temperature 23 ° C and relative humidity 50%. Measured by comparison. The smaller the amount of wear, the better the wear resistance (unit: mg). The results are shown in Tables 1 and 7.
- Oxytitanium phthalocyanine has a Bragg angle (2 0 ⁇ 0.2) 9.3 °, 10.6 °, 13.2 °, 15.1 °, 15 in X-ray diffraction by CuK o; 7 16. Strong diffraction peaks at 1 °, 20.8 °, 23.3 °, 26.3 °, 27.
- this pigment dispersion 50 parts by weight of a 1,2-dimethoxyethane solution containing 5% by weight of polybutyral (trade name Denkabutyral # 6000C, manufactured by Denki Kagaku Kogyo Co., Ltd.), phenoxy resin (Union Carbide) 50 parts by weight of a 1,2-dimethoxyethane solution containing 5% by weight of the product, trade name PKHH), and then adding an appropriate amount of 1,2-dimethoxyethane to a solid content concentration of 4.0%.
- a coating solution for forming a generation layer was prepared. This charge generation layer forming coating solution was applied onto a polyethylene terephthalate sheet vapor-deposited on the surface so that the film thickness after drying was 0, and dried to provide a charge generation layer.
- a coating solution for forming a charge transport layer is applied onto the charge generation layer so that the film thickness after drying is 20 ⁇ m, and dried at 125 ° C for 20 minutes to form a charge transport layer.
- the coating solution for forming the charge transport layer comprises 100 parts by weight of polyester resin, as shown in Table 1 and Table 7, 8 parts by weight of an anti-oxidation agent (Ilganox 1076), and silicone oil as a leveling agent 0.03 weight.
- tetrahydrofuran Z preparative Ruen mixed solvent tetrahydrofuran 80 weight 0/0, toluene 20 weight 0/0 was prepared engaged mixed in 640 parts by weight.
- a pigment dispersion was prepared by adding 10 parts of oxytitanium phthalocyanine to 150 parts of 1,2-dimethoxyethane and pulverizing and dispersing with a sand grind mill.
- Oxititaum phthalocyanine has Bragg angles (2 ⁇ ⁇ 0.2) 9.3 °, 10.6 °, 13.2 °, 15.1 °, 15.7 in X-ray diffraction by CuKa line. Strong diffraction peaks at °, 16.1 °, 20.8 °, 23.3 °, 26.3 ° and 27.1 °.
- the coating solution for forming the charge transport layer comprises 100 parts of the polyester resin shown in Table 2 as the binder resin for the charge transport layer, and 0.05 part of silicone oil (trade name KF96, manufactured by Shin-Etsu Chemical Co., Ltd.) aforementioned charge-transporting substance (1) 50 parts of mixed solvent of tetrahydrofuran and torr E down (tetrahydrofuran 80 weight 0/0, toluene 20 weight 0/0) was prepared by dissolving.
- polyester resin (resin A to resin Y) were prepared by the following production method.
- BP-a bis (4-hydroxy-13-methylphenol) methane
- this alkaline aqueous solution was transferred to a 1 L reactor, and then 0.2699 g of benzyltriethylammonium chloride and 0.55662 g of p- (tert-butyl) phenol were reacted in turn.
- a mixed solution of 30.65 g of diphenyl ether 4,4, -dicarboxylic acid chloride and 211 mL of dichloromethane was transferred into the dropping funnel, while maintaining the external temperature of the polymerization tank at 20 ° C. While stirring the alkaline aqueous solution in the reaction tank, the dichloromethane solution was dropped from the dropping funnel over 1 hour.
- This organic layer was washed twice with 424 mL of a 0.1N aqueous sodium hydroxide solution, then washed twice with 424 mL of 0.1N hydrochloric acid, and further washed twice with 424 mL of water.
- the washed organic layer was poured into 2820 mL of methanol, and the resulting precipitate was filtered out and dried to obtain a resin E.
- the repeating structure of rosin E is shown below.
- BP—b 14. 15g and 1, 1-bis (4 hydroxy-3-methyl) (Fer) ethane (hereinafter referred to as BP-g) 7. 34 g was added, stirred and dissolved, and the aqueous alkaline solution was transferred to a 1 L reaction vessel. Then, 0.2674 g of benzyltriethylammonium chloride and 0.5609 g of p- (tert-butyl) phenol were sequentially added to the reaction vessel.
- This organic layer was washed twice with 942 mL of a 0.1N sodium hydroxide aqueous solution, then washed twice with 942 mL of 0.1N hydrochloric acid, and further washed twice with 942 mL of water.
- the washed organic layer was poured into 6266 mL of methanol, and the resulting precipitate was removed by filtration and dried to obtain resin K.
- the repeating structure of rosin K is shown below.
- BP j bis (4-hydroxy-1,3,5-dimethylphenol) methane
- This organic layer was washed twice with 471 mL of a 0.1N aqueous sodium hydroxide solution, washed twice with 471 mL of 0.1N hydrochloric acid, and further washed twice with 471 mL of water.
- the washed organic layer was poured into 3133 mL of methanol, and the resulting precipitate was removed by filtration and dried to obtain rosin N.
- the repeating structure of ⁇ N is shown below.
- This organic layer was washed twice with 942 mL of 0.1N sodium hydroxide aqueous solution, then washed twice with 942 mL of 0.1N hydrochloric acid, and further washed twice with 942 mL of water.
- the washed organic layer was poured into 6266 mL of methanol, and the resulting precipitate was removed by filtration and dried to obtain a resin T.
- the repeating structure of rosin T is shown below.
- a mixed solution of Olg and dichloromethane 235 mL was transferred into the dropping funnel. While maintaining the external temperature of the polymerization tank at 20 ° C. and stirring the aqueous alkali solution in the reaction tank, the dichloromethane solution was dropped from the dropping funnel over 1 hour. After further stirring for 5 hours, 392 mL of dichloromethane was added, and stirring was continued for 7 hours. Thereafter, 3.84 mL of acetic acid was added and stirred for 30 minutes, and then the stirring was stopped and the organic layer was separated.
- This organic layer was washed twice with 471 mL of a 0.1N aqueous sodium hydroxide solution, washed twice with 471 mL of 0.1N hydrochloric acid, and further washed twice with 471 mL of water.
- the washed organic layer was poured into 3133 mL of methanol, and the resulting precipitate was removed by filtration and dried to obtain resin V.
- the repeating structure of Coffin V is shown below.
- a mixed solution of 65.22 g of diphenyl ether-4,4′-dicarboxylic acid chloride and 470 mL of dichloromethane was transferred into the dropping funnel.
- the dichloromethane solution was dropped from the dropping funnel over 1 hour while maintaining the external temperature of the polymerization tank at 20 ° C and stirring the alkaline aqueous solution in the reaction tank. After further stirring for 5 hours, 783 mL of dichloromethane was added, and stirring was continued for 7 hours. Thereafter, 8.34 mL of acetic acid was stirred for 30 minutes, and then the stirring was stopped to separate the organic layer.
- the dichloromethane solution was added dropwise from a dropping funnel over 1 hour while stirring the alkaline aqueous solution in the reaction vessel while maintaining the external temperature of the polymerization vessel at 20 ° C. As the polymerization progressed, insoluble components appeared in the organic layer, and it was impossible to remove and purify the resin Y.
- the repeating structure of rosin Y is shown below.
- TPA terephthalic acid residue
- BP—m 1, 1 bis (4 hydroxyphenyl) cyclohexane
- ODBA diphenyl ether 1,4'-dicarboxylic acid residue
- the polyester resin having a structure exhibits high solubility and coating solution stability with respect to a solvent usually used in a coating solution for forming a charge transport layer, and a photosensitive layer containing at least one of these polyester resins. It can be seen that the provided photoreceptor sheets (Examples 1 to 10) can provide good performance in electrical characteristics and wear tests.
- polyester resins having a terephthalic acid residue (TPA) in the molecule are insoluble in the solvent used in the coating solution for forming the charge transport layer (resin B, resin R, resin). S, resin W), the photoreceptor sheet cannot be prepared.
- the photosensitive sheet (Comparative Example 2, Comparative Example 3, Comparative Example 4, Comparative Example 7) provided with a photosensitive layer containing these polyester resins has sufficient performance in terms of electrical characteristics and wear tests. I can't get it.
- composition ratio composition ratio: molar ratio
- Printing durability test Divalent phenol dicarboxylic acid Photoreceptor Film loss (m type ⁇ ⁇
- TPA terephthalic acid residue
- polyester resins having a terephthalic acid residue (TPA) in the molecule are insoluble in the solvent used in the coating liquid for forming the charge transport layer (resin B, resin L, resin). Y), the photosensitive drum cannot be prepared. It can also be seen that the photoreceptor drums (Comparative Example 10 and Comparative Example 12) provided with a photosensitive layer containing these polyester resins cannot obtain sufficient performance in the printing durability test.
- TPA terephthalic acid residue
- the part exposed to the light of the white fluorescent lamp and the part not exposed on the photosensitive drum In order to make the image, cover the entire surface of the photoconductor with black paper with a hole of 20mm length and 40mm width, and then the light from the white fluorescent light ("Neormi Super FL20SS • WZ18" manufactured by Mitsubishi OSRAM Co., Ltd.) Is adjusted so that the light intensity on the surface of the photoconductor is 2000 lux, and irradiated for 10 minutes centering on the part where the black paper is perforated, then the black paper is removed, and the drum is tested for The potential difference between the light exposed part and the unexposed part was measured. The results are shown in Table 3. The white fluorescent light ("Neormi Super FL20SS • WZ18" manufactured by Mitsubishi OSRAM Co., Ltd.) is adjusted so that the light intensity on the surface of the photoconductor is 2000 lux, and irradiated for 10 minutes centering on the part where the black paper is perforated, then the black paper is removed, and the
- the photoconductor J2 of Example 14 also has light resistance, which is an important characteristic as an electrophotographic photoconductor.
- the photoconductor M2 of Comparative Example 12 shows good film loss in the printing durability test, but it is resistant to actual use because its light resistance is extremely weak! / It turns out that it is a thing.
- polyester resin resin JA to resin JE
- the precipitate obtained by pouring into 2820 mL) was removed by filtration and dried to obtain the desired resin JB.
- the viscosity average molecular weight of the obtained resin JB was 31,500.
- the repeated structure of the resin JB is the same as the resin J obtained in Production Example 10 and is therefore omitted.
- the desired rosin JC was obtained.
- the viscosity average molecular weight of the obtained resin JC was 31,500.
- the repeating structure of the resin JC is the same as the resin J obtained in Production Example 10, the description is omitted.
- the desired organic resin JD was obtained by removing the organic solvent from the organic layer.
- the viscosity average molecular weight of the obtained resin JD was 41,000.
- the repeating structure of the resin JD is the same as the resin J obtained in Production Example 10, the description is omitted.
- the desired organic resin JE was obtained by removing the organic solvent from the organic layer.
- the viscosity average molecular weight of the obtained resin JE was 31,500.
- the repeating structure of the resin JE is the same as the resin J obtained in Production Example 10, the description is omitted.
- the dispersion for the undercoat layer was produced as follows. That is, rutile type titanium oxide having an average primary particle size of 40 nm (“TT055N” manufactured by Ishihara Sangyo Co., Ltd.) and 3% by weight of methyldimethoxysilane (“TSL8117” manufactured by Toshiba Silicone Co., Ltd.) with respect to the titanium oxide.
- T055N average primary particle size of 40 nm
- TSL8117 methyldimethoxysilane
- the surface-treated titanium oxide obtained by mixing in a high-speed fluidized mixing and kneading machine (“SMG300” manufactured by Rikita Co., Ltd.) at a rotating peripheral speed of 34.5 mZ seconds was converted into methanol Z1-propano.
- a dispersion slurry of hydrophobized titanium oxide was obtained by dispersing with a ball mill in a mixed solvent of water.
- a pigment dispersion was prepared by pulverizing and dispersing with a sand grind mill. To 160 parts by weight of this pigment dispersion, 5 parts by weight of polyvinyl butyral (manufactured by Denki Kagaku Kogyo Co., Ltd., trade name Denka Butyral # 6000C) was added.
- the charge generation layer dispersion ⁇ 1 and the charge generation layer dispersion ⁇ 2 were mixed at a ratio of 8: 2 to prepare a charge generation layer dispersion ⁇ .
- a cylinder made of an aluminum alloy with an outer diameter of 30 mm, a length of 254 mm, and a wall thickness of 0.75 mm, with a rough surface iJ (Rmax 0.8), is dip-coated in the previously prepared dispersion for the undercoat layer.
- This cylinder was dip-coated in the charge generation layer dispersion j8 prepared earlier, and a charge generation layer was formed so that the weight after drying was 0.3 gZm2 (film thickness: about 0.3 m).
- a charge transport material composed of an isomer mixture mainly composed of the charge transport material (1) and a binder resin for a charge transport layer.
- Manufactured polyester resin (resin G) 100 parts by weight, silicone oil (trade name KF96, manufactured by Shin-Etsu Chemical Co., Ltd.) 0.05 part by weight tetrahydrofuran / toluene mixed solvent (tetrahydrofuran 80% by weight, toluene 20% by weight) 640
- a charge transport layer having a thickness of 25 m after drying was provided by dip coating.
- the photoreceptor drum thus obtained is designated G3.
- Photosensitive drum H3 was produced in the same manner as in Example 18 except that the polyester resin was used as the polyester resin (Production 8) in Production Example 8.
- Photosensitive drum J3 was produced in the same manner as in Example 18 except that the polyester resin was changed to that of Production Example 10 (resin).
- a photoconductive drum K3 was produced in the same manner as in Example 18 except that the polyester resin was changed to the polyester resin (Manufacturer K) in Production Example 11.
- Photosensitive drum M3 was produced in the same manner as in Example 18 except that the polyester resin was changed to the polyester resin of Example 13 (resin M).
- This cylinder was dip coated in the previously prepared dispersion for undercoat layer to form an undercoat layer having a thickness of about 1.3 / z m after drying. Further, the charge generation layer was formed by dip-coating in the previously prepared dispersion for charge generation layer
- an antioxidant Ciba Geigy one company Ltd., Irg a n OX 1076
- a charge transport layer having a thickness of 25 m after drying is formed by dip coating a part dissolved in 640 parts by weight of a tetrahydrofuran Z-toluene mixed solvent (80 parts by weight of tetrahydrofuran / 0 , 20% by weight of toluene). Provided.
- the photosensitive drum thus obtained is designated as J4.
- a photosensitive drum M4 was produced in the same manner as in Example 21 except that the polyester resin was changed to the polyester resin (Mineral resin M) of Production Example 13.
- Photosensitive drum J4A was prepared in the same manner as in Example 21 except that polyester resin was replaced with resin JA having viscosity average molecular weight Mv41,000 consisting of the same repeating structural unit as resin J.
- Photosensitive drum J4B was produced in the same manner as in Example 21 except that polyester resin was replaced with resin JB having a viscosity average molecular weight Mv31, 500 consisting of the same repeating structural unit as resin J. [0216] Comparative Example 17
- Example 21 is the same as Example 21 except that polycarbonate resin (with Mitsubishi Gas Chemical Company, PCZ-400, viscosity average molecular weight Mv approximately 40,000) having bisphenol Z as a structural unit is used instead of polyester resin. Similarly, Photosensitive drum 4 was prepared.
- polycarbonate resin with Mitsubishi Gas Chemical Company, PCZ-400, viscosity average molecular weight Mv approximately 40,000
- the cylinder in which the charge generation layer is formed is composed of the charge transport material (1) as a main component.
- 50 parts by weight of the charge transport material comprising the isomer mixture 100 parts by weight of the polyester resin (Resin A) produced in Production Example 1 as a binder resin for the charge transport layer, silicone oil (manufactured by Shin-Etsu Chemical Co., Ltd. Nominal KF96) 0.05 Drying part by weight of tetrahydrofuran / toluene mixed solvent (tetrahydrofuran 80% by weight, toluene 20% by weight) 640 parts by weight.
- a transport layer was provided.
- the photoreceptor drum thus obtained is designated as A5.
- Photosensitive drum J5A was produced in the same manner as in Example 24, except that polyester resin was replaced with resin JA having viscosity average molecular weight Mv41,000 consisting of the same repeating structural unit as resin J.
- Example 24 is the same as Example 24 except that polycarbonate resin having a repeating unit of bisphenol Z (Mitsubishi Gas Chemical Co., Ltd., PCZ-400, viscosity average molecular weight Mv approximately 40,000) was used instead of polyester resin. In the same manner, Photosensitive drum 5 was prepared.
- polycarbonate resin having a repeating unit of bisphenol Z Mitsubishi Gas Chemical Co., Ltd., PCZ-400, viscosity average molecular weight Mv approximately 40,000
- Photosensitive drum ZBp5 was prepared in the same manner as in Example 24 except that polycarbonate resin ⁇ having the following structure (viscosity average molecular weight Mv: about 40,500) was used instead of polyester resin.
- polyester resin resin Z to resin ZE
- the dichloromethane solution was dropped from the dropping port over 1 hour while stirring the alkaline aqueous solution in the reaction tank. After further stirring for 4 hours, dichloromethane (235 mL) was removed and stirring was continued for 8 hours. Thereafter, acetic acid (2.61 mL) was added and stirred for 30 minutes, and then stirring was stopped to separate the organic layer. This organic layer was washed twice with 0.1N aqueous sodium hydroxide solution (283 mL), then washed twice with 0.1 N hydrochloric acid (283 mL), and further washed with H 0 (283 mL). Was performed twice.
- Viscosity Z thus obtained had a viscosity average molecular weight of 47,100.
- the repeating structure of rosin Z is shown below.
- the dichloromethane solution was dropped from the dropping port over 1 hour while stirring the alkaline aqueous solution in the reaction tank. After further stirring for 4 hours, dichloromethane (235 mL) was added, and stirring was continued for 8 hours. Thereafter, acetic acid (2.54 mL) was added and stirred for 30 minutes, and then stirring was stopped to separate the organic layer. This organic layer was washed twice with 0.1N aqueous sodium hydroxide solution (283 mL), then washed twice with 0.1 N hydrochloric acid (283 mL), and further washed with H 0 (283 mL). Was performed twice.
- the washed organic layer was poured into methanol (1880 mL), and the resulting precipitate was removed by filtration and dried to obtain the desired resin ZA.
- the viscosity average molecular weight of the obtained rosin ZA was 36,200.
- the repeating structure of rosin ZA is shown below.
- BP-1 (26. 10 g) was added, stirred and dissolved therein, and this aqueous solution was transferred to a 1 L reactor. Subsequently, benzyltriethylammonium chloride (0.2698 g) and 2,3,5 trimethylphenol (0.5131 g) were sequentially added to the reaction vessel.
- the washed organic layer was poured into methanol (2820 mL), and the resulting precipitate was filtered off and dried to obtain the desired resin ZB.
- the viscosity average molecular weight of the obtained rosin ZB was 41,200.
- the repeating structure of rosin ZB is shown below.
- BP-1 (26. 10 g) was added, stirred and dissolved therein, and this aqueous solution was transferred to a 1 L reactor. Subsequently, benzyltriethylammonium chloride (0.2698 g) and 2,3,5 trimethylphenol (0.5131 g) were sequentially added to the reaction vessel.
- the washed organic layer was poured into methanol (2820 mL), and the resulting precipitate was filtered off and dried to obtain the desired resin ZC.
- the viscosity average molecular weight of the obtained rosin ZC was 40,600.
- the repeating structure of rosin ZC is shown below.
- the organic layer after washing was poured into methanol (2820 mL) and the precipitate obtained by pouring was filtered off. It was taken out and dried to obtain the desired rosin ZE.
- the viscosity average molecular weight of the obtained rosin ZE was 41,000.
- the repeating structure of resin ZE is shown below.
- Resin JA, JB, Z, ZA, ZB, ZC, ZD, and ZE were used to prepare a photoreceptor sheet and subjected to an electrical property test and an abrasion test. The results are shown in Table 7.
- FIG. 1 is a diagram illustrating an image forming apparatus.
- Electrophotographic photosensitive member 2 ... Charging device (charging roller) 3 ... Exposure device 4 ... Developing device 5 ... Transfer device 6 ... Cleaning device 7 ... Fixing device 41 Development tank, 42 ... Agitator, 43 ... Supply roller, 44 ... Developing roller, 45 ... Regulating member, 71 ... Upper fixing member (fixing roller), 72 ... Lower fixing member (Fixing roller), 73 ... Heating device
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Photoreceptors In Electrophotography (AREA)
- Polyesters Or Polycarbonates (AREA)
- Electrophotography Configuration And Component (AREA)
Description
Claims
Priority Applications (8)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/572,001 US7604913B2 (en) | 2004-07-16 | 2005-07-15 | Electrophotographic photosensitive body |
KR1020077001015A KR101220765B1 (ko) | 2004-07-16 | 2005-07-15 | 전자사진 감광체 |
CN2005800240184A CN1985218B (zh) | 2004-07-16 | 2005-07-15 | 电子照相感光体 |
KR1020127004257A KR101220578B1 (ko) | 2004-07-16 | 2005-07-15 | 전자사진 감광체 |
DE602005026946T DE602005026946D1 (de) | 2004-07-16 | 2005-07-15 | Elektrofotographischer lichtempfindlicher körper |
EP05762070A EP1770447B1 (en) | 2004-07-16 | 2005-07-15 | Electrophotographic photosensitive body |
US12/246,188 US7985522B2 (en) | 2004-07-16 | 2008-10-06 | Electrophotographic photoreceptor |
US12/892,399 US20110013934A1 (en) | 2004-07-16 | 2010-09-28 | Electrophotographic photoreceptor |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004210571 | 2004-07-16 | ||
JP2004-210571 | 2004-07-16 |
Related Child Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US11/572,001 A-371-Of-International US7604913B2 (en) | 2004-07-16 | 2005-07-15 | Electrophotographic photosensitive body |
US12/246,188 Continuation US7985522B2 (en) | 2004-07-16 | 2008-10-06 | Electrophotographic photoreceptor |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2006009126A1 true WO2006009126A1 (ja) | 2006-01-26 |
Family
ID=35785236
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2005/013187 WO2006009126A1 (ja) | 2004-07-16 | 2005-07-15 | 電子写真感光体 |
Country Status (7)
Country | Link |
---|---|
US (3) | US7604913B2 (ja) |
EP (2) | EP1770447B1 (ja) |
JP (3) | JP2010160516A (ja) |
KR (2) | KR101220578B1 (ja) |
CN (2) | CN101334592B (ja) |
DE (1) | DE602005026946D1 (ja) |
WO (1) | WO2006009126A1 (ja) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20090232551A1 (en) * | 2006-01-06 | 2009-09-17 | Mitsubishi Chemical Corporation | Electrophotographic photosensitive member, image forming device using same, and electrophotographic photosensitive member cartridge |
JP2010096929A (ja) * | 2008-10-16 | 2010-04-30 | Mitsubishi Chemicals Corp | 電子写真感光体、並びにそれを備えたカートリッジ及び画像形成装置 |
US20100183332A1 (en) * | 2007-06-11 | 2010-07-22 | Mitsubishi Chemical Corporation | Electrophotographic photoreceptors, electrophotographic photoreceptor cartridge, and image-forming apparatus |
US10848422B2 (en) | 2016-12-13 | 2020-11-24 | Napatech A/S | System and a method for handling data |
Families Citing this family (22)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2005024521A1 (ja) | 2003-09-02 | 2005-03-17 | Mitsubishi Chemical Corporation | 電子写真感光体 |
JP4655940B2 (ja) * | 2005-01-05 | 2011-03-23 | 三菱化学株式会社 | 電子写真感光体 |
JP5578398B2 (ja) * | 2009-06-02 | 2014-08-27 | 株式会社リコー | トナー担持体、現像装置及び画像形成装置 |
KR20130061132A (ko) | 2010-04-16 | 2013-06-10 | 발스파 소싱 인코포레이티드 | 패키징 용품을 위한 코팅 조성물 및 코팅 방법 |
BR112013020026B1 (pt) | 2011-02-07 | 2021-03-02 | Swimc Llc | artigo, composição de revestimento, e, método |
WO2012121176A1 (ja) | 2011-03-04 | 2012-09-13 | 三菱化学株式会社 | 電荷輸送物質、電子写真感光体、電子写真感光体カートリッジ、および画像形成装置 |
WO2013128575A1 (ja) | 2012-02-28 | 2013-09-06 | 富士電機株式会社 | 電子写真用感光体、その製造方法および電子写真装置、並びに共重合ポリアリレート樹脂の製造方法 |
KR20150040281A (ko) | 2012-07-31 | 2015-04-14 | 미쓰비시 가가꾸 가부시키가이샤 | 전자 사진 감광체, 전자 사진 감광체 카트리지, 화상 형성 장치, 및 트리아릴아민 화합물 |
CN104508564B (zh) * | 2012-07-31 | 2019-07-05 | 三菱化学株式会社 | 电子照相感光体、电子照相感光体盒及图像形成装置 |
ES2849526T3 (es) | 2012-08-09 | 2021-08-19 | Swimc Llc | Composiciones para contenedores y otros artículos y métodos de utilización de los mismos |
WO2014025411A1 (en) | 2012-08-09 | 2014-02-13 | Valspar Sourcing, Inc. | Container coating system |
JP6168905B2 (ja) * | 2012-09-28 | 2017-07-26 | キヤノン株式会社 | 電子写真感光体、プロセスカートリッジおよび電子写真装置 |
JP5899158B2 (ja) * | 2013-05-31 | 2016-04-06 | 京セラドキュメントソリューションズ株式会社 | 電子写真感光体及び画像形成装置 |
EP3131965B1 (en) | 2014-04-14 | 2024-06-12 | Swimc Llc | Methods of preparing compositions for containers and other articles and methods of using same |
US9645516B2 (en) * | 2014-11-19 | 2017-05-09 | Canon Kabushiki Kaisha | Electrophotographic photosensitive member, process cartridge and electrophotographic apparatus |
JP6463094B2 (ja) * | 2014-11-25 | 2019-01-30 | 三菱重工業株式会社 | 接合装置及び接合方法 |
WO2016152937A1 (ja) | 2015-03-23 | 2016-09-29 | 三菱化学株式会社 | 電子写真感光体、及び画像形成装置 |
TWI614275B (zh) | 2015-11-03 | 2018-02-11 | Valspar Sourcing Inc | 用於製備聚合物的液體環氧樹脂組合物 |
JP6658473B2 (ja) * | 2016-08-10 | 2020-03-04 | 京セラドキュメントソリューションズ株式会社 | ポリアリレート樹脂及び電子写真感光体 |
JP6579073B2 (ja) * | 2016-09-29 | 2019-09-25 | 京セラドキュメントソリューションズ株式会社 | 電子写真感光体 |
CN113845534B (zh) * | 2021-09-24 | 2022-10-18 | 江南大学 | 一种极灵敏水相检测高锰酸根发光晶体材料的制备方法和应用 |
EP4266429A1 (en) * | 2022-03-04 | 2023-10-25 | Contemporary Amperex Technology Co., Limited | Negative electrode composition, negative electrode slurry, negative electrode sheet, secondary battery, and electric device containing secondary battery |
Citations (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5098332A (ja) | 1973-12-26 | 1975-08-05 | ||
US4284699A (en) | 1977-02-14 | 1981-08-18 | Eastman Kodak Company | Polyester binder component in multilayer photoconductive element |
JPS56135844A (en) | 1980-03-26 | 1981-10-23 | Mitsubishi Paper Mills Ltd | Electrophotographic receptor |
JPS5971057A (ja) | 1982-10-18 | 1984-04-21 | Nippon Telegr & Teleph Corp <Ntt> | 電子写真用感光体 |
JPS59184251A (ja) | 1983-04-04 | 1984-10-19 | Toray Ind Inc | 樹脂組成物 |
JPS6420514A (en) | 1987-07-15 | 1989-01-24 | Mitsubishi Electric Corp | Supporting structure for reflection mirror spider |
JPH036567A (ja) | 1989-06-02 | 1991-01-14 | Kanegafuchi Chem Ind Co Ltd | 電子写真感光体 |
JPH0521478A (ja) | 1991-07-15 | 1993-01-29 | Hitachi Ltd | 半導体ペレツト |
JPH10288845A (ja) | 1997-04-16 | 1998-10-27 | Mitsubishi Chem Corp | 電子写真感光体用樹脂 |
JP2001265022A (ja) | 2000-03-22 | 2001-09-28 | Mitsubishi Chemicals Corp | 電子写真感光体 |
JP2002333731A (ja) | 2001-03-07 | 2002-11-22 | Mitsubishi Chemicals Corp | 電子写真感光体 |
Family Cites Families (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1287028A (en) * | 1969-05-19 | 1972-08-31 | Eastman Kodak Co | Photoconductive compositions |
US4173472A (en) * | 1976-06-15 | 1979-11-06 | Eastman Kodak Company | Polyester interlayer and binder component in multilayer photoconductive element |
CA1129426A (en) * | 1977-11-28 | 1982-08-10 | Suzanne P. Clark | Photoconductive compositions |
JP3250295B2 (ja) | 1992-04-16 | 2002-01-28 | 三菱化学株式会社 | 電子写真感光体 |
JPH08234468A (ja) * | 1995-02-24 | 1996-09-13 | Konica Corp | 電子写真感光体 |
US6030734A (en) * | 1996-03-11 | 2000-02-29 | Mitsubishi Chemical Corporation | Electrophotographic photoreceptor containing charge-transporting material with butadiene structure |
JP3584600B2 (ja) * | 1996-03-11 | 2004-11-04 | 三菱化学株式会社 | 電子写真感光体 |
JP3537065B2 (ja) * | 1996-07-01 | 2004-06-14 | キヤノン株式会社 | 電子写真感光体、プロセスカートリッジ及び電子写真装置 |
JP2000258931A (ja) | 1999-03-09 | 2000-09-22 | Kyocera Mita Corp | 電子写真感光体 |
US6482560B2 (en) * | 1999-12-20 | 2002-11-19 | Mitsubishi Chemical Corporation | Electrophotographic photoreceptor |
JP3835153B2 (ja) * | 2000-10-13 | 2006-10-18 | 三菱化学株式会社 | 電子写真感光体 |
JP4032213B2 (ja) | 2001-03-14 | 2008-01-16 | 三菱化学株式会社 | 電子写真感光体用アリールアミン組成物および当該組成物を使用した電子写真感光体 |
JP3797168B2 (ja) | 2001-09-20 | 2006-07-12 | 富士ゼロックス株式会社 | 画像形成方法 |
JP2003122034A (ja) | 2001-10-17 | 2003-04-25 | Kyocera Mita Corp | 電子写真感光体 |
JP4214903B2 (ja) | 2002-12-06 | 2009-01-28 | 三菱化学株式会社 | 電子写真感光体 |
-
2005
- 2005-07-15 KR KR1020127004257A patent/KR101220578B1/ko active IP Right Grant
- 2005-07-15 CN CN2008101461527A patent/CN101334592B/zh active Active
- 2005-07-15 WO PCT/JP2005/013187 patent/WO2006009126A1/ja active Application Filing
- 2005-07-15 KR KR1020077001015A patent/KR101220765B1/ko active IP Right Grant
- 2005-07-15 EP EP05762070A patent/EP1770447B1/en active Active
- 2005-07-15 US US11/572,001 patent/US7604913B2/en active Active
- 2005-07-15 CN CN2005800240184A patent/CN1985218B/zh active Active
- 2005-07-15 DE DE602005026946T patent/DE602005026946D1/de active Active
- 2005-07-15 EP EP09014177.1A patent/EP2154575B1/en active Active
-
2008
- 2008-10-06 US US12/246,188 patent/US7985522B2/en active Active
-
2010
- 2010-04-02 JP JP2010086038A patent/JP2010160516A/ja active Pending
- 2010-04-02 JP JP2010086037A patent/JP4978711B2/ja active Active
- 2010-09-28 US US12/892,399 patent/US20110013934A1/en not_active Abandoned
-
2013
- 2013-08-12 JP JP2013167930A patent/JP5527467B2/ja active Active
Patent Citations (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5098332A (ja) | 1973-12-26 | 1975-08-05 | ||
US4284699A (en) | 1977-02-14 | 1981-08-18 | Eastman Kodak Company | Polyester binder component in multilayer photoconductive element |
JPS56135844A (en) | 1980-03-26 | 1981-10-23 | Mitsubishi Paper Mills Ltd | Electrophotographic receptor |
JPS5971057A (ja) | 1982-10-18 | 1984-04-21 | Nippon Telegr & Teleph Corp <Ntt> | 電子写真用感光体 |
JPS59184251A (ja) | 1983-04-04 | 1984-10-19 | Toray Ind Inc | 樹脂組成物 |
JPS6420514A (en) | 1987-07-15 | 1989-01-24 | Mitsubishi Electric Corp | Supporting structure for reflection mirror spider |
JPH036567A (ja) | 1989-06-02 | 1991-01-14 | Kanegafuchi Chem Ind Co Ltd | 電子写真感光体 |
JPH0521478A (ja) | 1991-07-15 | 1993-01-29 | Hitachi Ltd | 半導体ペレツト |
JPH10288845A (ja) | 1997-04-16 | 1998-10-27 | Mitsubishi Chem Corp | 電子写真感光体用樹脂 |
JP2001265022A (ja) | 2000-03-22 | 2001-09-28 | Mitsubishi Chemicals Corp | 電子写真感光体 |
JP2002333731A (ja) | 2001-03-07 | 2002-11-22 | Mitsubishi Chemicals Corp | 電子写真感光体 |
Non-Patent Citations (1)
Title |
---|
See also references of EP1770447A4 |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20090232551A1 (en) * | 2006-01-06 | 2009-09-17 | Mitsubishi Chemical Corporation | Electrophotographic photosensitive member, image forming device using same, and electrophotographic photosensitive member cartridge |
US8273509B2 (en) * | 2006-01-06 | 2012-09-25 | Mitsubishi Chemical Corporation | Electrophotographic photoreceptor, and image forming device and electrophotographic photoreceptor cartridge using the same member cartridge |
US20100183332A1 (en) * | 2007-06-11 | 2010-07-22 | Mitsubishi Chemical Corporation | Electrophotographic photoreceptors, electrophotographic photoreceptor cartridge, and image-forming apparatus |
US8481238B2 (en) * | 2007-06-11 | 2013-07-09 | Mitsubishi Chemical Corporation | Electrophotographic photoreceptors, electrophotographic photoreceptor cartridge, and image-forming apparatus |
JP2010096929A (ja) * | 2008-10-16 | 2010-04-30 | Mitsubishi Chemicals Corp | 電子写真感光体、並びにそれを備えたカートリッジ及び画像形成装置 |
US10848422B2 (en) | 2016-12-13 | 2020-11-24 | Napatech A/S | System and a method for handling data |
Also Published As
Publication number | Publication date |
---|---|
DE602005026946D1 (de) | 2011-04-28 |
EP2154575A2 (en) | 2010-02-17 |
EP2154575A8 (en) | 2010-08-04 |
JP2010191456A (ja) | 2010-09-02 |
JP4978711B2 (ja) | 2012-07-18 |
JP2010160516A (ja) | 2010-07-22 |
EP2154575B1 (en) | 2014-12-24 |
EP1770447A4 (en) | 2009-04-01 |
EP1770447B1 (en) | 2011-03-16 |
JP5527467B2 (ja) | 2014-06-18 |
CN1985218A (zh) | 2007-06-20 |
US7985522B2 (en) | 2011-07-26 |
EP1770447A1 (en) | 2007-04-04 |
US7604913B2 (en) | 2009-10-20 |
KR101220765B1 (ko) | 2013-01-09 |
KR20120025635A (ko) | 2012-03-15 |
CN101334592A (zh) | 2008-12-31 |
JP2014002401A (ja) | 2014-01-09 |
CN101334592B (zh) | 2013-11-06 |
US20110013934A1 (en) | 2011-01-20 |
US20090047589A1 (en) | 2009-02-19 |
CN1985218B (zh) | 2012-09-05 |
EP2154575A3 (en) | 2013-04-03 |
KR20070041517A (ko) | 2007-04-18 |
US20080063963A1 (en) | 2008-03-13 |
KR101220578B1 (ko) | 2013-01-10 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP4517964B2 (ja) | 電子写真感光体 | |
JP5527467B2 (ja) | 電子写真感光体 | |
JP5481829B2 (ja) | 電子写真感光体、並びにそれを備えたカートリッジ及び画像形成装置 | |
JP2008293006A (ja) | 電子写真感光体 | |
JP4246621B2 (ja) | 電子写真感光体 | |
JP6380124B2 (ja) | 電子写真感光体、画像形成装置、及びポリエステル樹脂 | |
JP4862661B2 (ja) | 感光層形成用塗布液、電子写真感光体、電子写真感光体カートリッジ及び画像形成装置 | |
JP6123338B2 (ja) | 電子写真感光体、電子写真カートリッジ、及び画像形成装置 | |
JP5741180B2 (ja) | 電子写真感光体、電子写真カートリッジ、及び画像形成装置 | |
JP5593818B2 (ja) | 電子写真感光体、電子写真カートリッジ、及び画像形成装置 | |
JP4214866B2 (ja) | 電子写真感光体 | |
JP4973196B2 (ja) | 電子写真感光体、電子写真感光体カートリッジ及び画像形成装置 | |
JP4973200B2 (ja) | 電子写真感光体、電子写真感光体カートリッジ及び画像形成装置 | |
JP5593817B2 (ja) | 電子写真感光体、電子写真カートリッジ、及び画像形成装置 | |
JP5040319B2 (ja) | 正帯電型電子写真感光体、画像形成装置、画像形成方法及び電子写真感光体カートリッジ | |
JP4862662B2 (ja) | 電子写真感光体並びにそれを用いた画像形成装置及び電子写真カートリッジ | |
JP4661575B2 (ja) | 電子写真感光体、該感光体を用いる電子写真カートリッジ、及び該感光体を用いる画像形成装置 | |
JP4084976B2 (ja) | 電子写真感光体 | |
JP4475065B2 (ja) | 電子写真感光体 | |
JP4835683B2 (ja) | 電子写真感光体 | |
JP4028781B2 (ja) | 電子写真感光体 | |
JP2005227527A (ja) | 電子写真感光体 | |
JP3801438B2 (ja) | 電子写真感光体 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AK | Designated states |
Kind code of ref document: A1 Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BW BY BZ CA CH CN CO CR CU CZ DE DK DM DZ EC EE EG ES FI GB GD GE GH GM HR HU ID IL IN IS KE KG KM KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NA NG NI NO NZ OM PG PH PL PT RO RU SC SD SE SG SK SL SM SY TJ TM TN TR TT TZ UA UG US UZ VC VN YU ZA ZM ZW |
|
AL | Designated countries for regional patents |
Kind code of ref document: A1 Designated state(s): BW GH GM KE LS MW MZ NA SD SL SZ TZ UG ZM ZW AM AZ BY KG KZ MD RU TJ TM AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LT LU LV MC NL PL PT RO SE SI SK TR BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
WWE | Wipo information: entry into national phase |
Ref document number: 2005762070 Country of ref document: EP |
|
WWE | Wipo information: entry into national phase |
Ref document number: 11572001 Country of ref document: US |
|
WWE | Wipo information: entry into national phase |
Ref document number: 1020077001015 Country of ref document: KR |
|
WWE | Wipo information: entry into national phase |
Ref document number: 200580024018.4 Country of ref document: CN |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
WWP | Wipo information: published in national office |
Ref document number: 2005762070 Country of ref document: EP |
|
WWP | Wipo information: published in national office |
Ref document number: 11572001 Country of ref document: US |