MXPA97005094A - Compositions and finishes of photorreceptorque contain a dihydroxyarilamine and unpoliamide entrelaz - Google Patents

Abstract

The present invention relates to an electrophotographic image forming member, characterized in that it comprises a substrate coated at least with a charge generating layer, a load transport layer and a coating layer, the coating layer comprises a hydroxyarylamine dissolved or molecularly dispersed in an interlaced polyamide matrix

Description

PHOTORECEPTOR COMPOSITIONS AND FINISHES CONTAINING A DIHYDROXYARILAMINE ¥ ONA POTTIUTGH MiF H ^^^ n AHTBCgPgHTBS DB THE IMYBHCIQH This invention relates in general to coating compositions and more specifically to coated compositions and articles containing dihydroxyarylamine and an entangled polyamide. Electrophotographic image forming members, ie photoreceptors, typically include a photoconductive layer formed on an electrically conductive substrate. The photoconductive layer is a good insulator in the dark, in such a way that electrical charges are retained in its surface. Upon exposure to light, the charge dissipates. A latent electrostatic image is formed in the photoreceptor by first uniformly depositing an electrical charge on the surface of the photoconductive layer by one of any convenient means well known in the art. The photoconductive layer functions as a capacitor for charging storage with charge on its free surface and an equal charge of opposite polarity (the counter charge) on the conductive substrate. An image of light is then projected onto the photoconductive layer. Bn the portions of the photoconductive layer exposed to light, the charge REF: 24752 electrical is conducted through the layer reducing the layer surface charge. The portions of the photoconductor surface that are not exposed to light retain their surface charge. The amount of electric charge in any particular area of the photoconductive surface is inversely related to the incident illumination, thereby forming a latent electrostatic image. After developing the latent image with organic pigment particles to form an organic pigment image, the organic pigment image is usually transferred to a receiving member such as paper. The transfer is effected by various means such as by electrostatic transfer, during which an electrostatic charge is applied to the back side of the receiving member while the front side of the member is in contact with the organic pigment image. The photo discharge of the photoconductive layer requires the layer to generate free-layer carriers and transport this charge through the layer, thus neutralizing the charge on the surface. Two types of photoreceptor structure have been employed. Multilayer structures where separate layers perform load generation and load transport functions, respectively, and single layer photoconductors that perform both functions. These layers are formed on an electrically conductive substrate and may include an optional charge lock and an adhesive layer between the conductive layer and the photoconductive layer (s). Additionally, the substrate may comprise a non-conductive mechanical support with a conductive surface. Other layers for providing special functions such as incoherent laser light reflection, dot patterns for graphic image formation or subbing layers to provide chemical sealing and / or a uniform coating surface, may be optionally employed. A common type of photoreceptor is a multilayer device comprising a conductive layer, a blocking layer, an adhesive layer, the charge generating layer and a load transport layer. The charge transport charge may contain an active aromatic amine molecule, which allows charge transport, disposed or dispersed olecularly in a film-forming binder. This type of cargo transport layer is described, for example, in US Pat. No. 4,265,990. Other charge transport molecules described in the prior art include a variety of electron donors, aromatic amines, oxadiazoles, oxazoles, hydrazones and stilbenes for electron transport and electron acceptor molecules for electron transport. Another type of cargo transport layer has been developed that uses a cargo transport polymer, wherein the charge transport position is incorporated into the polymer as a secondary group in the main structure of the polymer structure or as a portion in the main structure of the polymer. These types of charge transport polymers include materials such as poly (N-vinylcarbazole), polysilylenes and other β including those described for example in U.S. Patents. Nos. 4,618,551, 4,806,443, 4,806,444, 4,818,650, 4,935,487 and 4,956,440. The descriptions of these patents are incorporated herein completely. Charge generating layers comprise amorphous selenium films and alloys of selenium and arsenic, tellurium, germanium and the like, hydrogenated amorphous silicon and silicon and germanium compounds, carbon, oxygen, nitrogen and the like manufactured by evaporation or vacuum deposition. The charge generating layers may also comprise inorganic crystalline selenis pigments and their alloys; compounds of groups II-VI; and organic pigments such as quinacridones, polycyclic pigments such as dibromo antantrone pigments, perylene and perinone diamines, aromatic polynuclear quinones, azo pigments including bis-, tris- and tetrakis-azoß; and the like dispersed in a polymeric film-forming binder and manufactured by solvent coating techniques. Phthalocyanines have used as photo-generator materials to be used in laser printers using infrared exposure systems. Infrared sensitivity is required for photoreceptors exposed to low cost semiconductor laser diode light exposure devices. The absorption spectrum and photosensitivity of phthalocyanines depend on the central metal atom of the compound. Many metallic phthalocyanines have been reported and include phylocyanin of oxalvanadium, phthalocyanine of chloro aluminum, phthalocyanine of copper, phthalocyanine of oxytitanium, phthalocyanine of chlorine gallium, phthalocyanine of magnesium and phthalocyanine free of metal. Phthalocyanines exist in many crystalline forms that have a strong influence on photogeneration. One of the design criteria for the selection of photosensitive pigment for a charge generating layer and the charge transport molecule for a transport layer, is that when photons of light photogenerate holes in the pigment, the orifices can be injected efficiently. in the transport molecule of charge in the transport layer. More specifically, the efficiency of injection of the pigment into the transport layer must be high. A second design criterion is that the injected holes are transported through the load transport layer in a short time; shorter than the time duration between the exposure and development stations in an image forming device. The transit time through the transport layer is determined by the mobility of the load carrier in the transport layer. The mobility of load carrier is the speed per unit field and has dimensions of square centimeter / volts / sec. The mobility of the charge carrier is a function of the structure of the charge transport molecule, the concentration of the charge transport molecule in the transport layer and the electrically "inactive" binder polymer, wherein the transport molecule of load is dispersed. Reprographic machines often use multi-layer organic photoconductors and can also use corotrons, scorotrons or polarization charge rollers to charge the photoconductors before exposure for imaging. In addition, corotrons, scorotrons or polarization transfer rollers can be used to transfer organic pigment images from a photoreceptor to a receptor member. Polarization transfer rollers for charging purposes have the advantage that they generally emit less ozone than corotrons and scorotrons. it has been found that as the speed and number of image formation of copiers, duplicators and printers, the polarization transfer rollers and bias charge rollers are increased, they can cause serious wear problems to the photoreceptors. Polarization transfer rollers and polarization charging rollers are known in the art. Polarization transfer rollers that are similar to polarization charging rolls are described, for example, in U.S. Pat. Nos. 5,420,677, 5,321,476, and 5,303,014. All descriptions of these patents are incorporated herein by reference. As a consequence of the abrasive action of the polarization transfer rollers and the polarization charging rollers, they load the rollers, the operational life of the conventional photoreceptors is severely reduced. In a test performed on a photoreceptor composition of non-interlaced abrasion resistant finish, the introduction of the polarization transfer roller sub-sterns and polarization charge roller causes a greater than eight times increase in the finish photoreceptor. The precise nature of the electrical / abrasive wear of the thickness of the load transport layer is unknown, but it is theorized that some degradation process involving binder charge cleavage occurs, or in the case of the arylamine orifice transport polymers , the reduction in chain lengths causes the polymers to lose their inherent strength. As described above, a type of multilayer photoreceptors that has been employed as a band in electrophotographic image forming systems comprises a substrate, a conductive layer, a charge blocking layer, a charge generating layer and a radiation layer. Freight transport. The charge transport layer often comprises a small activating molecule dispersed or digested in a polymer film-forming binder. In general, the polymeric film-forming binder in the transport layer is in general inactive by itself and becomes electrically active when it contains the activating molecule. The term "electrically active" means that the material is capable of supporting the injection of photogenerated charge carriers of the material into the charge generating layer and is capable of allowing the transport of these charge carriers through the electrically active layer in order to to discharge a surface charge in the active layer. The multi-layer photoreceptor type may also comprise additional layers such as an anti-scratch backing layer, an adhesive layer and a finishing layer. Although excellent organic pigment images can be obtained with multilayer band photoreceptors that are developed with developer powder εec (organic pigment), ε has found that these same photoreceptors become unstable when used with liquid developing systems. These photoreceptors suffer from cracking, cracking, crystallization of active compounds, separation of faeces from activating compounds and extraction of activating compounds caused by contact with the organic carrier fluid, isoparefenic hydrocarbons, isopar, commonly used in liquid developer inks which in turn degrade markedly. the mechanical integrity and electrical properties of the photoreceptor. More specifically, the organic carrier fluid of a liquid developer tends to leach by activating small molecules, such as the arylamine-containing compounds typically employed in the cargo transport layers. Representative of these classes of materials are: N, N '-diphenyl-N, N'-bis (3-methylphenyl) - [1,1'-bifinyl] -4,4'-diamine; bis- (4-diethylamino-2-methyl phenyl) -phenylmethane; 2,5-bis (4'-dimethylaminophenyl-1,3,4-oxadiazole; 1-pheny1-3, '-diethylamylaminostyryl-5,4'-diethylaminophenylpyrazoline; 1,1-biß (4-di N, N'- p-methylphenyl) -aminophenyl) -cyclohexane; 4-diethylaminobenzaldehyde-1, 1-diphenylhydrazone; 1,1-diphenyl-2 (pN, N-diphenylamino-phenyl) -ethylene; N-ethylcarbazole-3-carboxaldehyde 1-methyl-1 -phenylhydrazone The leachate process results from crystallization of the small activating molecules such as the aforementioned arylamine compounds, on the photoreceptor surface and subsequent migration of adila inaß in the liquid developing ink, In addition, the ink vehicle, typically a hydrocarbon branched with 10 to 14 carbon atoms, induces the formation of fissures and cracks, on the surface of the photoreceptor.They lead to copy defects and shortened photoreceptor life.Degradation of the photoreceptor manifests as increased background and other printing defects before fail full physical photoreceptor. With the small activating molecule, it also increases the susceptibility of the transport layer to stress / solvent cracking when the web is parked on a web support roll during unused periods. Some carrier fluids may also promote phase separation of the small activating molecules, such as arylamine compounds, in the transport layers, particularly when high concentrations of the arylamine compound are present in the transport layer binder. Phase separation of small activating molecules also adversely alters the electrical and mechanical properties of a photoreceptor. Similarly, single-layer photoreceptors have a simple active layer comprising photoconductive particles dispersed in a charge transport film-forming binder are also vulnerable to the same degradation problems found by the type of photoreceptor in multiple layers previously described when It is exposed to liquid developers. Although flexing normally does not encounter rigid cylindrical multi-layer photoreceptors that utilize charge transport tastings containing small dispersing or dissolving activating molecules in a polymeric film-forming binder, similar electrical degradation is encountered during treatment with liquid developers. Sufficient degradation of these photoreceptors by liquid developers can occur in less than two hours as indicated by leaching of the small molecule and cracking of the polymeric matrix film. Continuous exposure for several days severely damages the photoreceptor. Thus, in advanced imaging systems using multilayer band photoreceptors exposed to liquid developing systems, ICR1 cracking has been found in critical load carrying layers during band cycling. The development of fissures in the load transport layers during cycling may manifest as a printing defect, adversely affecting the quality of the copy. In addition, cracks in the photoreceptor collection pigment particles can not be removed in the cleaning step and can be transferred to the background in subsequent prints. In addition, areas of fissure are subject to detachment when contacted with blade cleaning devices, thus limiting the options in the polymeric For example, charge transfer complexes formed of polyvinylcarbazole are described in US Pat. Numbers 4,047,948, 4,346,158 and 4,388,392. Photoreceptors that use polyvinyl carbazole layers, compared to current photoreceptor requirements, exhibit poor xerographic performance in both electrical and mechanical properties. Polymeric arylamine molecules prepared from the condensation of disodium amine with a di-iodo aryl compound are described in European Patent Publication 34,425 published August 26, 1981, issued May 16, 1984. Since these polymers are extremely fragile and they form films that are very susceptible to physical damage, their use in a flexible band configuration, avoids. In this way, the advanced imaging system using band photoreceptors with multiple layers exposed to liquid development systems, has found cracking and cracking in layers of critical load transport during band cycling. Still other arylamine charge transport polymers, such as those described in US Pat. Nos. 4,806,444, 4,806,443, 4935,487 and 5,030,532 are vulnerable to reduced duration, due to the highly abrasive conditions presented by image forming systems using bypass transfer rolls and / or bypass charge transfer rolls. Finishes or protective coatings can be somewhat ancillary against abrasion. However, most protective coatings also fail early when subjected to the highly abrasive conditions presented by image forming systems using bypass transfer rolls and / or bypass charge rolls. Furthermore, many finishes tend to accumulate residual charge during cycling. This can cause a condition known as cycle-up, in which the residual potential continues to increase with multi-cycle operation. This can result in increased densities in the background areas of the final images. DECLARATION OF DESCRIPTION OF INFORMATION The patent of the U.S.A. Number 4,871,634 granted to H. Limburg et al., October 3, 1989 - A hydroxyarylamine compound, represented by a specific formula, is described for use in photoreceptors. The hydroxy arylamine compound can be used as a coating or finishing with a hydroxy arylamine compound bound to a resin, layers of hydrogen bonds, such as polyamide having alcohol solubility. The patent of the U.S.A. No. 5,368,967 issued to R.Shank et al. On November 29, 1994. A coating layer is described comprising an arylamine for transporting orifices of small molecule having at least two hydroxyl functional groups, a triphenyl methane-hydroxy or multihydroxy and a polyamide film-forming binder capable of forming hydrogen bonds with the hydroxy functional groups of the droxyarylamine and hydraxy or multihydrood triphenylmethane.

CROSS REFERENCE AT RELATED APPLICATION This application relates to the following U.S. patent applications: In the pending U.S. patent application. No. 08 / 583,904 filed in the name of H. Yuh on January 11, 1996, entitled "Charge Blocking Layer for Electrographic Imaging Member" (Load blocking layer for electrophotographic image forming member) - An electrophotographic image forming member is described as contains a substrate, an orifice blocking layer comprising a hydrogen bond or reaction product of a hydrolyzed metal alkoxide molecule or hydrolyzed metal aryloxide molecule and a film-forming alcohol soluble nylon polymer containing acid amide groups carboxylic in the main polymer structure, a charge generating layer and a load transport layer. The patent application of the U.S.A. serial number (agent's file number D / 96192 filed concurrently with the present in the name of R. Schank et al., titled "OVERCOATED ELECTROPHOTOFRAPHIC IMAGING MEMBER WITH RESILIENT CHARGE TRANSPORT LAYER" (MEMBER FORMER OF ELECTROPHOTOGRAPHIC IMAGE FOR FINISHING WITH RESILIENT LOAD TRANSPORTATION LAYER) - A flexible electrophotographic image forming member describes free of an anti-kinked backing layer, the image forming member includes an uncoated support substrate on one side and coated on the opposite side, with at least one charge generating layer, a load transport layer and a coating layer, the transport layer includes a polymer resilient orifice transport polysilane arylamine, and finish including a polyamine entangled with a dihydroxyamine, which forms a latent electrostatic image on the imaging member, deposits organic pigment particles on the imaging member in accordance with the latent image, to make an image of organic pigment, and transfer the image of pi As an organic member is a recipient member, this image forming member can be employed in an image forming process which includes forming to form an organic pigment image and transferring the organic pigment image to a recipient member. The patent application of the U.S.A. Do not give Series (file of agent number D / 96370) filed concurrently with the present in the name of A. ard collaborators with title "PROCESS FOR FABRICATION AN ELECTROPHOTOGRAPHIC IMAGING MEMBER" (PROCESS TO MANUFACTURE AN ELECTROPHOTOGRAPHIC IMAGE FORMER MEMBER) - a process is described for fabricating an electrophotographic image forming member that includes providing a sub-layer coated with at least one photoconductive layer, applying a coating composition to the photoconductive layer by dip coating to form a wet layer, the coating composition includes finely divided silica particles, a hydroxy amine filler transport material, an aryl amine filler transport material that is different from the filler transport material of dihydroxy amine, a crosslinkable polyamide containing methoxy groups connected to amide nitrogen atoms, an entanglement catalyst and at least one solvent for l Hydroxy amine filler transport material, aryl amine and interlazable polyamide freight transport material, and heat the wet layer to interlock the polyamide and remove the solvent to form a dry layer, where the freight transport material dihydroxy amine and the aryl amine charge transporting material which is different from the charge transport material of dihydroxyamine dißpersan molecularly in an entangled polyamide matrix. The patent application of the U.S.A. Do not give Series (file of agent number D / 95435) filed concurrently with eßta in the name of and collaborators, with the title "HIGH SPEED ELECTROPHOTOGRAPHIC IMAGING MEMBER" (MEMBER FORMOR OF HIGH-SPEED ELECTROPHOTOGRAPHIC IMAGE) - A member forming an electrophotographic image is described as comprising a support substrate, a load generating layer, a load transport layer and a finishing layer, the transport layer comprises a charge transport molecule in a polystyrene matrix and the finishing layer comprising a polyamide forming film and a hydroxyaryl amine. In this way, there is a continuing need for photoreceptors that have improved resistance to abrasive cycling conditions and increased densities in the background areas of the final images and cyclic instabilities. There is also a continuing need for improved photoconductors usable in a liquid ink environment. SUMMARY OF THE INVENTION It is therefore an object of the present invention to provide an improved electrophotographic image forming member that overcomes the deficiencies noted above. Another object of the present invention is to provide an improved electrophotographic image forming member capable of longer cycle life under abrasive imaging conditions. A still further objective of the present invention is to provide an improved electrophotographic image forming member capable of longer cycle life under cleaning blade / organic pigment abrasive interactions. Still another object of the present invention is to provide an improved electrophotographic image forming member that is stable against start cycling. Yet another objective of the present invention is to provide an improved electrophotographic image forming member that resists cracking in a liquid developing environment. Still another object of the present invention is to provide an electrophotographic image forming member that exhibits resistance against arduous handling in a copier environment. Still another object of the present invention is to provide an electrophotographic image forming member that exhibits resistance against fast handling, during installation and service. The above objectives and others are achieved in accordance with this invention by providing an electrophotographic image forming member comprising a support substrate coated at least with a charge generating layer., a load transport layer and a finishing layer, the coating layer comprises dihydroxyaryl amine dissolved or molecularly dispersed in an interlaced polyamide matrix. The coating layer is formed by entangling a crosslinkable coating composition comprising an alcohol soluble polyamide containing methoxy methyl groups connected to amide nitrogen atoms, an entanglement catalyst and a dihydroxy arylamine. The electrophotographic image forming member can be imaged in a process that involves uniformly charging the image forming member, exposing the image forming member with activating radiation in an image configuration to form a latent electrostatic image, revealing the latent image with particles of organic pigment to form an organic pigment image and transfer the organic pigment image to a recipient member. Electrophotographic image forming members are well known in the art. Electrophotographic image forming members can be prepared by any convenient technique. Typically, a flexible or rigid substrate is provided with an electrically conductive surface. A charge generating layer is then applied to the electrically conductive surface. A charge blocking layer can optionally be applied to the electrically conductive surface, before application of a twill generating layer. If desired, an adhesive layer can be used between the charge blocking layer and the charge generating layer. Also, the charge generating layer is applied to the blocking layer and a load transport layer is formed in the charge generating layer. This structure may have the load generating layer on or below the load transport layer.

The substrate may be opaque or substantially transparent and may comprise any suitable material having the required mechanical properties. Accordingly, the substrate may comprise a layer of an electrically non-conductive or conductive material such as an organic or inorganic composition. As electrically non-conductive materials, various resins known for this purpose can be used, including polyesters, polycarbonates, polyamides, polyurethanes and the like which are flexible as thin wefts. An electrically conductive substrate can be any metal, for example aluminum, nickel, steel, copper and the like or a polymeric material as described above, filled with an electrically conductive substance such as carbon, metal powder and the like or an organic electrically conductive material. The electrically opposed conductive or insulating substrate in the form of an endless flexible band, a weft, a rigid cylinder, a sheet and the like. The thickness of the substrate layer depends on numerous factors, including economic resistance and economical consideration. In this way, for a drum, this layer can have a substantial thickness, for example up to many centimeters or a minimum thickness of less than one millimeter. Similarly, a flexible band may be of substantial thickness, for example approximately 250 microns, or of minimum thickness less than 50 microns, provided that there are no adverse effects in the final electrophotographic device. In embodiments where the substrate layer is non-conductive, its surface can be made electrically conductive by an electrically conductive coating. The conductive coating can vary in thickness substantially over wide ranges depending on the optical transparency, degrees of desired flexibility and economic factors. Accordingly, for a flexible photoresponsive image-forming device, the thickness of the conductive coating may be between about 20 angstroms to about 750 angstroms, and more preferably to about 100 angstroms to about 200 angstroms for an optimum combination of electrical conductivity, flexibility and light transmission. The flexible conductive coating may be an electrically conductive metal layer, formed for example on the substrate by any convenient coating technique, such as a vacuum deposition or electroplating technique. Typical metals include aluminum, zirconium, niobium, tantalum, vanadium and hafnium, titanium, nickel, stainless steel, chromium, tungsten, molybdenum and the like.

An optional hole-blocking layer can be applied to the substrate. Any conventional and convenient blocking layer capable of forming an electronic barrier to holes between the adjacent photoconductive layer and the underlying conductive layer of a substrate may be employed. An optional adhesive layer can be applied to the orifice blocking layer. Any suitable adhesive layer well known in the art may be used. Typical adhesive layer materials include for example polyesters, polyurethanes and the like. Satisfactory results can be achieved with adhesive layer thickness between approximately 0.05 micrometer (500 angstroms) and approximately 0.03 micrometers (3000 angstroms). Conventional techniques for applying a coating mixture of adhesive layer to the load blocking layer, include spraying, dip coating, roller coating, wire wound rod coating, recording coating, coating with Bird applicator and the like. The deposited coating drying can be carried out by any convenient conventional technique such as oven drying, infrared radiation drying, air drying and the like. Any suitable polymeric film-forming binder material can be used as the matrix in the charge-generating binder layer (photogeneration).

Typical polymeric film forming materials include those described for example in U.S. Pat. No. 3,121,006, the complete description of which is incorporated herein by reference. Thus, typical organic polymer film forming binders include thermoplastic resins and thermosetting resins such as polycarbonates, polyesters, polyamides, polyurethanes, polystyrenes, polyarylethers, polyarylsulphones, polybutadienes, polysulfones, polyethersulfones, polyethylenes, polypropylenes, polyimides, polymethylpentenes, polyphenylene sulfides, polyvinylacetates, polysiloxanes, polyacrylates, polyvinyl acetals, polyamides, polyimides, aminoresins, phenylene oxide resins, terephthalic acid resins, phenolxy resins, epoxy resins, phenolic resins, polystyrene and acrylonitrile copolymers, polyvinyl chloride, vinyl chloride copolymers and vinyl acetate , acrylate copolymers, alkyd resins, cellulose film formers, poly (amideimide), styrene-butadiene copolymers, vinylene chlorine-vinyl chloride copolymers, vinyl acetate-vinylidene chloride copolymers, alkyd styrene resins, polyvinyl carbaz ol carbazole and the like. These polymers may be block copolymers, random or alternating. The pigment or photogenerating composition is present in the resinous binder composition in various amounts. In general, however, about 5% by volume in about 90% by volume of the photogenerator pigment is dispersed in about 10% by volume to about 95% by volume of the resinous binder and preferably about 20% by volume to about 30% by volume. The volume of the photo-generator pigment is dispersed in about 70% by volume to about 80% by volume of the resinous binder composition. In one embodiment, approximately 8% by volume of the photogenerator pigment is dispersed in approximately 92% by volume of the resinous binder composition. The photogenerating layers can also be manufactured by vacuum sublimation in which case there is no binder. any convenient and conventional technique can be used to mix and subsequently apply the photogenerated layer coating mixture. Typical application techniques include spraying, dip coating, roller coating, wire-wound rod coating, vacuum sublimation and the like. For some applications, the generating layer can be manufactured in a pattern of dots or lines. Removal of the solvent from a solvent-coated layer can be effected by any convenient conventional technique such as oven-dried, infrared-radiation drying, air-drying and the like. The charge transport layer may comprise a small charge transport molecule dissolved or molecularly dispersed in an electrically inert film-forming polymer such as a polycarbonate. The term "dissolved" as that is used, is defined as forming a solution in which the small molecule dissolves in the polymer to form a homogeneous phase. The term "molecularly dispersed" is used here to define a small molecule of charge transport is dispersed in the polymer, small molecules are dispersed the polymer on a molecular scale. Any convenient charge transport or electrically active small molecule can be employed in the charge transeport layer of this invention. The expression "small molecule" of charge transease η ine here as a monomer that allows the photogenerated free charge in the transport layer to be transported through the transport layer. Small typical cargo transport molecules include, for example, pyrazoline, such as l-phenyl-3- (4'-diethylamino-styryl) -5- (4"-diethylamino phenyl) pyrazoline, diamines such as N, N'-diphenyl-N ' , N'-biß (3-methylphenyl) - (1, 1-biphenyl-) 4,4'-diamine; hydrazonaß taleß such as N-phenyl-N-methyl-3- (9-ethyl) carbazyl hydrazone and 4-diethylamino-benzaldehyde-1, 2-diphenyl hydrazone and oxadiazoles such as 2,5-biß- (4-N, N ' -diethylaminophenyl) -l, 2,4-oxadiazole; Ethiopians and similars. However, to avoid starting cycling, the charge transport layer should be substantially free of triphenylmethane. As indicated above, suitable electrically active small molecule charge carrier compounds are dissolved or dispersed molecularly in electrically inactive polymeric film forming materials. A small molecule charge transport compound that allows injection of pigment orifices to the charge generating layer with high efficiency and transports them through the cargo transport layer with very short transit times is N, N'-diphenyl -N ', N'-bis (3-methylphenyl- (1, 1-biphenyl) -4,4'-diamine Any suitable electrically inert polymeric binder can be used to digest the electrically active molecule in the charge transport layer , is poly (4-4'-isopropylidene-diphenylene) carbonate (also referred to as bisphenol-A-polycarbonate), poly (4,4'-isopropylidene-diphenylene) carbonate, poly (4,4'-diphenylene-1) Other typical inactive resin binders include polyether, polyarylate, polyacrylate, polyether, polysulfone and the like Molecular weights may vary, for example, from about 20,000 to about 150,000. little Molecularly dissolved or dispersed molecule in an electrically inert polymeric binder, the charge transport layer can comprise any convenient charge carrier polymer. Typical charge transfer polymers are obtained from the condensation of N, N'-diphenyl N'N'-bis (3-hydroxyphenyl- (1,1'-biphenyl-) 4,4'-diamine; and diethylene glycol bischloro formate such as described in U.S. Patent No. 4,806,443 and U.S. Patent No. 5,028,687, all descriptions of these patents are incorporated herein by reference.Another typical charge transport polymer is poly (N, N'- bis- (3-oxyphenyl) N-N'-diphenyl [1,1'biphenyl-] 4,4'-diaminsebacoyl polyether carbonate, obtained from the condensation of N, N 'diphenyl N'N' bis (3-hydroxyphenyl) 1 'biphenyl-) 4,4'.diamine and sebacoyl chloride Any convenient conventional technique can be used to mix and subsequently apply the load-bearing layer coating mixture to the charge-generating layer.Typical application techniques include spraying, Immersion coating, roll coating, wire wound rod coating, and the like. The coating of the deposited coating can be carried out by any convenient conventional technique such as oven drying, infrared radiation drying, air drying and the like. In general, the thickness of the load transport layer is between about 10 and about 50 micrometers, but thicknesses outside this range can also be used. The orifice transport layer shall be an insulator in the proportion that the electrostatic charge imposed on the charge transport layer is not conducted in the absence of illumination at a sufficient speed to avoid formation and retention of a latent electrostatic image. In general, the ratio of the thickness of the load transport layer to the load generating layers, preferably is maintained from about 2: 1 to 200: 1 and in some cases as large as 400: 1. In other words, the charge transport layer is substantially non-absorbent to visible light or radiation in the intended region of use, but is electrically "active" in that it allows the injection of photogenerated orifices of the photoconductive layer, i.e. generating layer of charge, and allows these orifices to be transported through if to selectively discharge a surface charge on the surface of the active layer. The coating layer of this invention comprises a dihydroxy arylamine dissolved or molecularly dispersed in an interlaced polyamide matrix. The coating layer is formed from a crosslinkable coating composition comprising an alcohol-soluble polyamide containing methoxy methyl groups connected to amide nitrogen atoms, an entanglement catalyst and a dihydroxyarylamine. Any suitable polyvinyl alcohol-soluble polyamide polymer ions or ß-insulating film having methoxy methyl groups connected to the nitrogen atoms of attached groups in the polymer backbone prior to entanglement may be employed in the coating of this invention. A preferred alcohol soluble polyamide polymer having methoxy methyl groups connected to the nitrogen atoms of amide groups in the polymer backbone prior to treatment, is selected from the group consisting of materials represented by the following formulas I and II: where: n eß a positive integer, R independently is selected from the group consisting of alkylene, arylene or alkarylene units, between 1 and 99% of ßitioß R * ßon -H, and the rest of the R * sites are -CHa -0-CH, and where: m is a positive integer, Rx and R independently are chosen from the group consisting of alkylene, arylene or alearileño units, between 1 and 99% of the sites R3 and R * are -H, and the rest of the R3 sites and R4 are -CH, -0-CH, and Between about 1% and about 50% by mole of the total number of repeating units of the nylon polymer should contain methoxy and methyl groups connected to the nitrogen atoms of amide groups. These polyamides should form solid films if they are dried before interlacing. The polyamide will also be ßer soluble before interlacing in the alcohol solvents used. Typical alcohols wherein the polyamide is soluble include for example butanol, ethanol, methanol and the like. Typical alcohol-soluble polyamide polymers having methoxymethyl groups connected to nitrogen atoms of amide groups in the foregoing entanglement main polymer structure include, for example, polyamide film-forming polymers soluble in alcohol hole insulators include for example Luckamide 5003 from Dai Nippon InX, Nylon 8 with secondary methylmethoxy groups, CM4000 from Toray Industries, Ltd. and CM8000 from Toray Industries, Ltd and other N-ethoxymethylated polyamides such as those prepared according to the method described by Sorenson and Campbell "Preparative Method of Polymer Chemistry "(Preparative Methods for Chemistry and Polymers) second edition page 76, John Wiley and Sons, Inc. 1968 and the like and their mixtures. These polyamides can be soluble in alcohol, for example with polar functional groups such as methoxy, ethoxy and hydroxy groups, secondary to the polymer backbone. It should be noted that polyamides, such as Elvanides from DuPont de Nemours & Co., do not contain methoxy methyl groups connected to the nitrogen atoms of amide groups in the polymer backbone. The coating layer of this invention preferably comprises between about 50% by weight and about 98% by weight of the crosslinked alcohol-soluble interlacing film-forming polyamide polymer having methoxy methyl groups connected to the nitrogen atoms of amide groups in The main polymer structure, based on the total weight of the coating layer after interlacing and drying. These film-forming polyamides are also soluble in a solvent to facilitate application by conventional coating techniques. Typical solvents include, for example, butanol, methanol, butyl acetate, ethanol, cyclohexanone, tetrahydrofuran, methyl ethyl ketone and the like and mixtures thereof. Interlacing is achieved by heating in the presence of a catalyst. Any suitable catalyst can be used. Typical catalysts include, for example, oxalic acid, p-toluenesulfonic acid, methanesulfonic acid and the like and mixtures thereof. Catalysts that transform into a gaseous product during the entanglement reaction are preferred because they coat the coating mixture and leave no residue that can adversely affect the electrical properties of the final coating. A typical gas-forming catalyst for example is oxalic acid. The temperature used for entanglement varies with the specific catalyst and the heating time employed in the desired degree of entanglement. In general, the degree of select entanglement depends on the desired flexibility of the final photoreceptor. For example, full entristancing can be employed for plate or rigid drum photoreceptors. However, partial interleaving is preferred. for flexible photoreceptors having, for example, raster or band configurations. The degree of interleaving can be controlled by the relative amount of the catalyst used. The amount of catalyst to achieve a desired degree of interlacing variety depending on the polyamide, catalyst and time selected for the reaction. A typical interlacing temperature employed for Luckamide with oxalic acid as catalyst is about 125 ° C for 30 minutes. After entanglement, the coating should be substantially soluble in solvent where it was soluble prior to entanglement. This way, you will not remove coating material when you rub it with a cloth soaked in solvent. Entanglement results in the development of a three-dimensional network that restricts the dihydroxyl amine molecule as a fish is trapped in a vertical creeping net. Prolonged attempts to extract the highly fluorescent dihydroxy amine orbital transport molecule from interlaced lining using long exposure of branched hydrocarbon solvents reveals that the transport molecule ß completely immobilizes. In this way, when UV light is cooled to examine the extractor or the applicator pad, no fluorescence is observed. The molecule is also enclaved in the coating by hydrogen bonding to amide sites in the polyamide. The synthesis of this invention also includes a dihydroxyamine, the dihydroxyl amine is represented by the following formula: where: is 0 or 1, Z is chosen from the group consisting of: n is 0 or 1, Ar is chosen from the group consisting of: R is selected from the group consisting of -CH3, -C, HB, -CH ,, and -C.H ,, Ar 'is selected from the group consisting of: - @ L OH, X is chosen from the group consisting of: . s is 0, 1 or 2, This idro-larylamine compound is described in detail in U.S. Pat. No. 4,871,634 the entire description of which is incorporated herein by reference. In general, the hydroxyarylamine compounds are prepared, for example, by hydrolyzing a dialkoxy arylamine. A typical process for preparing alkoxy arylamines is described in Example 1 of US Pat. No. 4,588,666 issued * to Stolka et al., The entire description of this patent is incorporated herein by reference. Typical hydroxyarylamine compounds of this invention include, for example: N, N'-diphenyl-N, N'-bis (3-hydroxyphenyl) - [1,1'-bipheni] -4,4'-diamine; N, N, N ', N' -tetra (3-hydroxyphenyl) - [1,1 ', 1,1'-biphenyl] -4,4'-diamine; N, N-di (3-hydroxyphenyl) -m-toluidine; 1, 1-bis- [4- (di-N, N-m-hydroxyphenyl) -aminopheni1] -cydohexane; 1, 1-bis [4- (N-m-hydroxyphenyl) -4- (N-phenyl) -aminophenyl] -cciohexane; Bis- (N- (3-hydroxyphenyl) -N-phenyl-4-aminophenyl) -methane; Bis [(N- (3-hydroxyphenyl) -N-phenyl) -4-aminophenyl] -isopropylidene; N, N'-diphenyl-N, N'-bis (3-hydroxyphenyl) - [1,1 ': 4,1"-terphenyl] -4,4" -diamine; 9-ethyl-3,6-biß [N-phenyl-N-3 (3-hydroxyphenyl) -amino] -carbazole; 2, 7-bis [N, N-di (3-hydroxyphenyl) -amino] -fluorene; 1, 6-bis [N, N-di (3-hydroxyphenyl) -amino] -pyrne; 1, 4-bis [N-phenyl-N- (3-hydroxyphenyl)] - phenylenediamine; N, N '-diphenyl-N-N' -bis (4-hydroxyphenyl) [1,1'-biphenyl] -4,4'-diamine; N,, N ', N'-tetraf4-hydroxyphenyl) - [1,1'-biphenyl] -4,4'-diamine; N, N-di (4-hydroxyphenyl) -m-toluidine; 1, 1-bis- [4- (di-N, N-p-hydroxyphenyl) -aminophenyl] -cydohexane; 1, 1-bis [4- (N-o-hydroxyphenyl) -4- (N-phenyl) -aminophenyl] -cydohexane; Bis- (N- (4-hydroxyphenyl) -N-phenyl-4-aminophenyl) -methane; Bis [(N- (4-hydroxyphenyl) -N-phenyl) -4-amiprophenyl] -isopropylidene; Bis-N, N - [(4'-hydroxy-4- (1, 1-biphenyl)] - aniline; Bis-N, N - [(2'-hydroxy-4- (1, 1-biphenyl)] ] -aniline The concentration of the hydroxyarylamine in the coating may be between about 2% and about 50% by weight with baεe in the total dry coating weight Preferably, the concentration of the hydroxyarylamine in the coating layer is between about 10. % and about 50% by weight based on the total weight of the dry coating When less than about 10% by weight of hydroxyarylamine is present in the coating, a residual voltage can develop with cycling resulting in background problems. In the case of the hydroxyarylamine exceeds approximately 50% by weight with the coating in the revetment layer, crystallization resulting in residual cycling can occur, and mechanical properties and abrasive wear properties are negatively impacted. It depends on the abrasiveness of the loading system (eg bypass charge roller), cleaning, (eg, blade or weft), developing (eg, brush), transfer (eg, bypass transfer roller), etc., employed and may be in the range of approximately 10 micrometers. A thickness of between about micrometer and about 5 micrometers is preferred. Any convenient and conventional technique can be used to mix and subsequently apply the coating layer coating mixture to the charge generating layer. Typical application techniques include spraying, dip coating, roller coating, wire wound rod coating and the like. The drying of the deposited coating can be carried out by any convenient conventional technique such as oven drying, infrared radiation drying, air drying and the like. The εeco coating of this invention will have to transport holes during imaging and should not have too high a carrier-free concentration. The free concentration of coating carrier increases deterioration in the dark. Preferably, the deterioration in the dark of the coated layer must be the same as that of the ßin revetting device. Other suitable layers can also be used as a conventional electrically conductive earth strip, on a drum washing edge in contact with the conductive surface of the substrate to facilitate electrical connection of the electrically conductive layer of the photoreceptor to ground or to an electrical bypass. Earth strips are well known and usually comprise conductive particles dispersed in a film-forming binder. In some cases, an anti-kinked backing or backing can be applied to the opposite side of the photoreceptor to provide flatness and / or abrasion resistance for band or frame type photoreceptors. These anti-kinked backing coating layers are well known in the art and may comprise thermoplastic organic polymers or inorganic polymers that are electrically insulating or slightly semiconductor. The photoreceptor of this invention can be used in any conventional electrophotographic image forming system. As described above, electrophotographic image formation usually involves depositing a uniform electrostatic charge on the photoreceptor, exposing the photoreceptor to a light image pattern to form an electrostatic latent image on the photoreceptor, revealing the electrostatic latent image with light particles. electrostatically attractable, to form a visible organic pigment image, transfer the organic pigment image to a receiving member and repeat the stages of deposition, exposure, development and transfer, at least once.

A number of examples are set forth below and are illustrative of different compositions and conditions that may be employed to practice the invention. All proportions are given by weight, unless otherwise indicated. It will be apparent, however, that the invention can be practiced with many types of compositions and can have many different uses according to the above description and as previously established. EXAMPLE II These photoreceptors were formed in the preparation by forming coatings using conventional techniques in a substrate comprising a layer of titanium deposited under vacuum in a polyethylene terephthalate film. The first coating was a siloxane barrier layer formed from hydrolyzed amino propyl triethioxy silane gamma having a thickness of 0.005 micrometer (50 angstrom). The barrier layer coating composition is prepared by mixing 3-amino propyl triethioxy silane (available from PCR Research Chemicals of Florida) with ethanol in a volume ratio of 1:50. The coating composition was applied by a film applicator with multiple spacings to form a coating having a wet thickness of .0127 mm (0.5 mil). The coating was then allowed to dry for 5 minutes at room temperature followed by curing for 10 minutes at 110 ° C in a forced air oven.The second coating was a layer of polyester resin adhesive (49,000, available from EI duPont de Nemours) &Co.) having a thickness of 50 angstroms (.005 miera) The second coating composition is prepared by dissolving 0.5 gram of 49,000 polyester resin in 70 grams of tetrahydrofuran and 29.5 grams of cyclohexanone. applied using a .0127 mm (.5 mil) bar and the resulting coating is cured in a forced air oven for 10 minutes.This adhesive interface layer is subsequently coated with a photogenerating layer containing 40% by volume of phthalocyanine of hydroxy gallium and 60% by volume of a styrene (82%) / 4-vinyl pyridine 18% block copolymer having a molecular weight of 11,000. is prepared by dissolving 1.5 grams of the styrene / 4-vinyl pyridine block copolymer in 42 ml of toluene. To this solution are added 1.33 grams of phthalocyanine hydroxy gallium and 302 grams of stainless steel shot with a diameter of 3.175 mm (1/8"). This mixture is then placed in a ball mill for 20 hours. Apply to the adhesive interface with a Bird applicator to form a layer that has a wet thickness of .00635 mm (.25 mil) Eßta capa ße ßeca at 135 * C for 5 minutes in a forced air oven, to form a Photogenerating layer having a ηc thickness of 0.4 micrometer The next applied layer was a transport layer that is formed by using a Bird coating applicator to apply the solution containing one gram of N, N 'diphenyl-N, N'- biß (3-methyl-phenyl) - (1,1'-biphenyl) -4, '-diamine and one gram of polycarbonate resin [poly-4,4'-isopropylidene-diphenylene carbonate (available as Makrolon ** from Farbenfabriken Bayer AG) dissolved in 11.5 grams of methylene chloride solvent: N, N '-diphenyl-N, N'-bis (3-me til-phenyl) - (1,1'-biphenyl) -4,4'-diamine eß a small electrically active aromatic diamine charge transport molecule, while the polycarbonate resin is an electrically inactive film-forming binder. The coated device will be at 80 ° C for half an hour in a forced air oven, to form a load transept layer with a thickness of 25 micrometers and εec. EXAMPLE II A second device ε prepares to coat a photoreceptor of Example I with a layer of finishing material or coating. This revealing material is described in the patent of E.U.A. No. 5,368,967 the entire description of which is incorporated herein by reference. Before application of the coating layer, the photoreceptor of Example I ß prints by applying 0.1% on Elvacite pedestal 2.008 in proportion to 90:10 of isopropyl alcohol and water using a Meyer # 3 rod. This primer is exposed to the air in a hood. The composition of the coating is prepared by mixing 10 grams of a 10% by weight solution of a polyamide containing methoxy methyl groups (Luckamide 5003 available from Dai Nippon Ink) in a 90:10 weight ratio of methanol solvent and n- propanol and 10 grams of N, N'-diphenyl-N, N'-bis (3-hydroxyphenol) - (1, 1-biphenyl) -4,4"-diamine (one dihydroxyarylamine) in a roller mill for two This coating solution is applied to the photoreceptor primed using a Meyer # 20 rod. The coating layer was air dried in a hood for 30 minutes.The air dried film is then dried in a 125"forced air oven. C for 30 minutes. The thickness of the coating layer was approximately 3 microns. EXAMPLE III A third device is prepared by coating a photoreceptor of Example I with a topcoat or coating material. Before application of the coating layer, the photoreceptor of Example I is printed by applying 0.1% by weight of Elvacite 2008 in weight proportion to 90:10 - xae isopropyl alcohol and water, using a Meyer # 3 rod. Eßte primer coating It dries in the air in a bell. The composition of the coating is prepared by mixing 10 grams of a 10% solution in solution of a polyamide containing methoxy methyl groups (Luckamide 5003 available from Dai Nippon Ink) in a 90:10 weight ratio of methanol solvent and n- propanol and 10 grams of N, N'-dipheny1-N, N'-bis (3-hydroxyphenol) - (1,1'-biphenyl) -4,4"-diamine (one dihydroxyarylamine) in a roller mill Immediately before application of the coating layer mixture, 0.1 gram of oxalic acid is added and the resulting mixture is subjected to a roller mill briefly to ensure dissolution.This coating solution is applied to the photoreceptor primed using a Meyßr # 20 rod. This coating layer is air dried in a hood for 30 minutes.The air dried film is then dried in a forced air oven at 125"C for 30 minutes. The thickness of the coating layer was approximately 3 microns. The oxalic acid caused entanglement of the methoxy methyl groups of the polyamide to give a superior surface resistant to hydrocarbon, resistant to abrasion, resistant to hydrocarbons. EXAMPLE IV The devices of Example I (device without the coating), Example II (device with the coating of US Patent No. 5,368,967 (Example III) device with the interlaced coating of this invention) were first tested for xerographic sensitivity and cyclical stability. Each photoreceptor device is mounted on a cylindrical aluminum drum substrate that is rotated on an arrow of an explorer. Each photoreceptor is loaded by a corotron mounted on the periphery of the drum. The surface potential is measured as a function of time by capacitively coupled voltage probes placed at different locations around the arrow. The probes were calibrated by applying known potentials to the drum substrate. The photoreceptors in the drums were exposed by a light source located in a position near the drum downstream of the corotron. As the drum rotates, the initial charge potential (pre-exposure) is measured by the voltage probe 1. Further rotation leads to the exposure station, where the photoreceptor is exposed to monochromatic radiation of known intensity. The photoreceptor is erased by a light source located in a position upstream of the load. The measurements taken include charging the photoreceptor in a voltage or constant current mode. The photoreceptor is charged to a corona of negative polarity. As the drum rotates, the initial charge potential is measured by the voltage probe 1. Greater rotation leads to the exposure station, where the photoreceptor is exposed to monochromatic radiation of known intensity. The surface potential of the exposure buffer is measured by the voltage ßondaß 2 and 3. The photoreceptor finally exposes a lamp of appropriate intensity erasure and any residual potential η measured by the voltage probe 4. The process ß repeats with the magnitude of the exposure automatically changed during the next cycle. The photo-discharge characteristics are obtained by plotting the potentials in voltage probes 2 and 3 as a function of light exposure. The charging station and deterioration due to darkness are also measured in the scanner. A slight increase in sensitivity is observed in coated otorreceptors. This increase corresponds to the increase of three micrometers in thickness due to the presence of the coatings. The residual potential was equivalent (15 volts) for all three photoreceptors and no observed compilation cycling when cycling for 10,000 cycles in a continuous mode. The revelation clearly did not introduce any deficiencies. EXAMPLE V Three electrophotographic image forming members were prepared by applying a load blocking layer on the rectified surface of an aluminum drum having a diameter of 4 cm and a length of 31 cm by dip coating. The blocking layer revetment mixture contains a solution of 8% by weight of polyamide (Nylon 6) dissolved in 92% in butanol, methanol and water solvent as a mixture. The percentages of components of the mixture of butanol, methanol and water were 55, 36 and 9% by weight, respectively. The blocking layer lining is applied as at a rate of removal of 300 mm / inute revetment bath. Deßpuéß de èsecar in a forced air oven, the blocking layer had a thickness of 1.5 micrometers. The dry blocking layer is coated with a charge generating layer containing 2.5% by weight of phthalocyanine pigment particles of hydroxy gallium, 2.5% by weight of polyvinyl butyral film-forming polymer and 95% by weight of cyclohexanone solvent. The coating is applied at a coating removal speed of 300 m / inute. After drying in a forced air oven, the charge generating layer had a thickness of 0.2 micrometer. The dry generating layer is coated with a load transport layer containing 8% by weight of N, N'-diphenyl-N, N * -bis (3-methylphenyl) - (1, 1-biphenyl) -4, 4"-diamine, 12% by weight of polycarbonate resin (Makrolon 5705 available as Makrolon ** from Farbenfabriken Bayer? .G.) And 80% by solvent monochlorobenzene.The load-bearing layer coating is applied at a high speed for removing coating bath of 100 mm / minute.After drying in a forced air oven, the load carrying layer had a thickness of 0.2 micrometer.The first image forming member was tested without the use of revetment. Applies to devices in the second and third imaging members by a coating device type batán a product of Anakenesis Corp., which applies the solution from an open-head polyurethane cushion, which is resupply from a tank and is capable of coating to a thickness that has less than 5% variance n through the drum and ßin measurable variation across the circumference. The coating mixture for application to the second image-forming member contains a solution of 5.4% by weight of N-N'-diphenyl- [1, 1-biphenyl] -4,4'-diamine and 54% by weight of polyamide solution ] prepared by dissolving 10% by weight of Luckamide 5003 in 90% by weight methanol / propanol (90/10) dissolved in 40.6% isopropanol and a trace of water solvent mixture. Luckamide 5003 is a polyamide having secondary methoxy groups of the polymer backbone and is available from Dai Nippon Ink. After application and drying in a forced air oven at a temperature of 125 * C for 30 minutes, the coating layer has a thickness of 4 to 6 micrometers. The device in the third photoreceptor is coated with a coating similar to the coating for the second photoreceptor, except that the coating composition is adjusted to contain 0.5% by weight of oxalic acid dissolved in the reaction solution mixture. After application and drying in a forced air oven at a temperature of 125 * C the finishing layer had a thickness of 4 to 6 micrometers. The three photoreceptors of this example, i.e. the first photoreceptor without the coating, the second photoreceptor containing a coating of the prior art (U.S. Patent No. 5,368,967) and the third photoreceptor containing the interlaced revetment of this invention, were tested for wear and print test capabilities in the following examples. EXAMPLE VI The electrical properties of the photoreceptors prepared according to Example VI were evaluated with a xerographic test scanner. The drums were rotated in a scanner at a constant surface speed of 5.66 cm per second. A direct current wire scorotron, narrow wavelength band exposure lamp, erasing lamp and four electrometer probes were mounted around the periphery of the mounted photoreceptor laß mueßtraß. Each sample load time was 137 milliseconds. The exposure lamp had an output wavelength of 680 nm and the erasing lamp had an output wavelength of 550 nm. The photo-charge characteristics are obtained by plotting the potentials in the voltage probes 2 and 3, as a function of light exposure. The load acceptance and deterioration in darkness were also measured in the explorer. A slight increase in sensitivity is observed in the coating devices. This increase corresponds to the increase of 4 to 6 microns in thickness due to the finish. The residual potential was equivalent (15 volts) for all four devices and no start cycling is observed when cycling for 1,000 cycles in a continuous mode. The coating clearly does not introduce any electrical deficiencies. EXAMPLE VII The three photoreceptors of Example v were tested for printing on a xerox 4510 machine for 500 consecutive prints. There was no loss of image sharpness without problem with background or some other defect resulting from the finishes. EXAMPLE VIII The three-drum photoreceptors of Example V, tested on a wear accessory containing a charge-loaded roller. The wear is calculated in terms of nanometers / kilocycles of rotation (nm / Kc). The reproducibility of the calibration standards is approximately >50 n / Kcycles. The drum wear without the coating was > 50 nm / Kcycles. The wear of the second photoreceptor was > 50 nm / Kcycles. The difference for the third photoreceptor having the crosslinked revelation of this invention was approximately 9 n / K cycloß. In this way, the improvement in resistance to deßgaßte for the photoreceptor of this invention when subjected to roller conditions for bypass loading was very significant. EXAMPLE IX The three drum photoreceptors of Example V were gauze cushions soaked with Isopar M, a C15 branched hydrocarbon useful in liquid ink developing xerography. When the cushions that contacted the first uncoated photoreceptor and the non-interlaced coating of the second photoreceptor were exposed to an ultraviolet lamp, indicative fluorescence (characteristic of the transport molecule) was observed in each cushion while the cushion that contacted the interlaced coating of the The third photoreceptor showed no evidence of fluorescence, indicating that the interlaced sample was resistant to Isopar extraction. Although the invention has been described with reference to specific preferred embodiments, it is not intended to be limited thereto, on the contrary, those who have ordinary skill in the art will recognize that variations and modifications may be practiced that are within the spirit of the invention and within the scope of the claims. It is noted that in relation to this date, the best method known to the applicant to carry out the aforementioned invention, is that which is clear from the present description of the invention. Having described the invention as above, property is claimed as contained in the following:

Claims (19)

1. RE-IMMUNIZATIONS 1. An electrophotographic image forming member, characterized in that it comprises a substrate coated with at least one charge generating layer, a load transport layer and a coating layer, the coating layer comprises a hydroxyarylamine dissolved or molecularly dispersed in an interlaced polyamide matrix. 2. An electrophotographic image forming member according to claim 1, characterized in that the polyamide is entangled in the presence of an oxalic acid catalyst. 3. An electrophotographic image forming member according to claim 1, characterized in that amide nitrogen atoms in the polyamide contain methoxy methyl groups before crosslinking. 4. An electrophotographic image forming member according to claim 1, characterized in that the polyamide is selected from the group consisting of materials represented by the following formulas I and II: wherein: n is a positive integer, R independently is selected from the group consisting of alkylene, arylene or alkarylene units, between 1 and 99% of the Ra sites are -H, and the rest of the Ra sites are -CH3-0 -CH, and wherein: m is a positive integer, Ra and R are independently chosen from the group consisting of alkylene, arylene or alkarylene units, between 1 and 99% of sites R3 and R4 are -H, and the rest of the sites R * and R4 are -CH2-0-CH, and 5. An electrophotographic image forming member according to claim 1, characterized in that the dihydroxyarylamine is represented by the following formula: where: m is 0 or 1, Z is chosen from the group consisting of: n is o or 1, Ar is chosen from the group consisting of:
2. R is selected from the group consisting of -CH3, -CaHs, -C, H7, and -CJI, and Ar 'is selected from the group consisting of:
3. - ©. OH,
4. X is chosen from the group consisting of;
5. -CHj-, -QHj * -O-. -, -. - ^. s eß 0, 1 or 2, the hydroxyarylamine eßta compound free of any direct conjugation between the ß-group and the nearestmost nitrogen atom through one or more aromatic rings.
6. 6. An electrophotographic image forming member according to claim 1, characterized in that the revelation is sub-substantially insoluble in any solvent in which it was soluble before interlacing.
7. 7. An electrophotographic image forming member according to claim 1, characterized in that the revetment is non-soluble in and non-absorbent in liquid ink vehicles.
8. 8. An electrophotographic image forming member according to claim 1, characterized in that the revelation eß is continuous and has an eßpeßor less than about 10 micrometroe.
9. 9. - An electrophotographic image forming member according to claim 1, characterized in that the coating has an epsperer between about 1 micrometer and about 5 micrometers.
10. 10. An electrophotographic image forming member according to claim 1, characterized in that the coating eß for hole transitions.
11. 11. A crosslinkable coating composition, characterized in that it comprises an alcohol-soluble polyamide containing β-methoxymethyl groups connected to amide nitrogen atoms, an entanglement catalyst and a dihydroxyarylamine.
12. 12.- Interlocking revetment composition according to claim 11, characterized in that the polyamide is represented by the formulas I and II: wherein: n eß a positive integer, R independently is selected from the group consisting of alkylene, arylene or alkarylene units, between 1 and 99% of the R * 1 sites are -H, and the rest of the sites R ** ßon -CH, -0-CH, and wherein: m is a number and is a positive integer, R1 and R independently are selected from the group consisting of alkylene, arylene or alkarylene units, between 1 and 99% of sites R3 and R4 are -H, and the remainder of the sites R ** and R4 are -CHa-0-CHs.
13. 13. Interlocking revetment composition according to claim 11, characterized in that the dihydroxy ina is represented by the following formula: where: m is 0 or 1, Z is chosen from the group consisting of: n is O or 1, Ar is chosen from the group consisting of: R is selected from the group consisting of -CH ,, -CaH », -C3H7, and -C« Hß, Ar 'is selected from the group consisting of: OH. X is chosen from the group consisting of: -CH2-, -CtCHjh, -. - < -. -s-. - ^. If eε 0, 1 or 2, the hydroxyarylamine compound is free from any direct conjugation between the β-OH groups and the nearest máximum nitrogen atom through 1 or more aromatic illoes.
14. 14. Interlocking revetment composition according to claim 11, characterized in that the catalyst is oxalic acid.
15. 15. A method for forming a revetment comprising providing a substrate, forming the revetment of a crosslinkable composition on the substrate, the crosslinkable revetment composition comprising a polyamide containing methoxy methyl groups connected to amide nitrogen ß, a d-catalyst. entanglement and a dihydroxyamine, and heat the revetment to entangle the polyamide.
16. 16. Electrophotographic image formation process comprising providing an electrophotographic image forming member that consists of a support substrate coated with at least one charge generating layer, a load transport layer and a coating layer, the layer The coating comprises a dihydroxyarylamine dissolved or molecularly dispersed in an interlaced polyamide matrix, uniformly charging the image-forming member, exposing the image-forming member with activating radiation in image configuration to form a latent electrostatic image, revealing the latent image with particles of organic pigment to form an organic pigment image and transfer the organic pigment image to a recipient member.
17. 17. A process for electrophotographic image formation according to claim 16, characterized in that it includes uniformly loading the image forming member with a contact bypass charging roller.
18. 18. A process for electrophotographic image formation according to claim 16, characterized in that it includes transferring the organic pigment image to a receiving member with a bypass transfer roller.
19. 19. A process for electrophystographic image formation according to claim 16, characterized in that the organic pigment particles ε provide the latent image in a liquid developer comprising the particles of organic pigment dispersed in a liquid carrier.