CN100373261C - Manufacturing device and method of electronic photographic photoreceptor - Google Patents
Manufacturing device and method of electronic photographic photoreceptor Download PDFInfo
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- CN100373261C CN100373261C CNB2005100667213A CN200510066721A CN100373261C CN 100373261 C CN100373261 C CN 100373261C CN B2005100667213 A CNB2005100667213 A CN B2005100667213A CN 200510066721 A CN200510066721 A CN 200510066721A CN 100373261 C CN100373261 C CN 100373261C
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Abstract
The invention increases substitution efficiency of a coating liquid and to prevent increase in the viscosity of a coating liquid so as to prevent stagnation in the flow in a coating tank, and thus, to provide a coating apparatus, in which two or more straightening vanes such as porous plates and meshes are effectively installed in a tank. The manufacturing apparatus for an electrophotographic photoreceptor has a coating tank, wherein a coating liquid is made to flow from the lower part of the coating tank (4) by a liquid feeding device, such as a pump (2) from a coating liquid stock tank (1) and made to overflow from the upper end control the height of the liquid surface, and an electrophotographic photoreceptor substrate is immersed in the liquid to be coated. The apparatus is such that the difference between the inside diameter of an inlet pipe (8) for the coating liquid in the lower part of the coating tank (4) and the inside diameter of the coating tank (4) is corrected by inserting a tapered portion (7); and at least two or more straightening vanes (3), (5) are installed inside the coating tank (7).
Description
Technical field
The present invention relates to a kind of electrophotographic photoreceptor manufacturing device and manufacture method.
Background technology
Manufacturing installation and the method that a kind of manufacturing has the Electrophtography photosensor of excellent specific property disclosed in the flat 8-320580 of Jap.P. Publication Laid-Open number (following brief note is " patent documentation 1 ") communique, described manufacturing installation is provided with the rectification layer of assembling spherical body, has the even overlay film of the liquid stream rectificationization that makes in the coating pan.But, because described manufacturing installation can't form coating fluid stream on whole rectification layer, make coating fluid flow to central part easily, and the flow velocity of the coating fluid between the spherical body of side surface side is slow, therefore, making thixotropy coating fluid circulation time, the increase of coating fluid viscosity takes place each other at the spherical body of side surface side.Thus, the coating fluid that viscosity increases is attached on the cylindrical substrate, becomes blocky image deflects.
Again, the flat 6-254459 of Jap.P. Publication Laid-Open number (following brief note is " patent documentation 2 "), the flat 10-43652 of Jap.P. Publication Laid-Open number (following brief note is " patent documentation 3 ") discloses by the technology of flow velocity in the cowling panel control flume is set in the flat 2002-49162 of Jap.P. Publication Laid-Open number (following brief note is " patent documentation 4 ") communique.But this technology is thought, as long as it is promptly enough on tapered portion top a slice cowling panel to be set.Yet, in fact,, silt up in the tapered portion below cowling panel making thixotropy coating fluid circulation time, the viscosity of coating fluid is increased.Thus, the coating fluid that viscosity increases is attached on the cylindrical substrate, becomes blocky image deflects.
Again, in the flat 10-48849 of Jap.P. Publication Laid-Open number (following brief note is " patent documentation 5 ") communique, disclose, prevented the method for gradation unequal by using the dip coated of thixotropy coating fluid.Described method adopts when the applied thing of dipping, control near the liquid stream in applied thing bottom, make it flow to coating pan wall direction, as such mode, make the turbination buoyancy aid float what coating fluid liquid level in advance, in applied thing is flooded, flood simultaneously and form liquid and flow, thus, prevent because of use the thixotropy coating fluid that dip coated took place was deep or light irregular.Yet for enhancing productivity, the viscosity that needs to reduce coating fluid is flooded, and improves the coating flow velocity.Yet this moment, because the narrow gaps of buoyancy aid and coating pan inwall, when improving flow velocity, a part of flow velocity in gap is too fast, and the deep or light irregular of longitudinal stripe shape taken place easily.This technology has carried out disperseing to silting up of being taken place again, and but can't fundamentally eliminate the generation of silting up.
In the past, in the pigment-dispersing type coating fluid, there was such coating fluid: thixotropy character with viscosity change when applying external force such as mobile.In coating pan during circulation thixotropy coating fluid, it is slow or become the place of silting up of vortex that the coating fluid flow velocity takes place in the flowing in groove, and the viscosity of silting the coating fluid of part up increases.When dipping and lifting cylindrical substrate, in the forming process of filming, the coating fluid that viscosity increases is attached on the cylindrical substrate, becomes blocky image deflects.
In the past, such method for rectifying was arranged: constitute the rectification layer by a slice cowling panel or by spherical body, carry out the rectification of the rectification mechanism top in the coating pan.Yet according to this method, in the gap of its spherical body of the tapered portion below the cowling panel towards coating pan bore diffusion and tapered portion side surface side from coating fluid inflow pipe bore, it is slow or form the place of silting up of vortex that the coating fluid flow velocity takes place.According to this technology, make thixotropy coating fluid circulation time, along with the circulation process of back time, the viscosity of silting the coating fluid of part up increases.Coating fluid viscosity in the coating pan is irregular, and this coating fluid is attached on the cylindrical substrate, causes deep or light irregular.
Summary of the invention
The present invention puts forward in view of the existing defective of prior art, the objective of the invention is to, for the coating fluid stream in the coating pan is not silted up, the cowling panel of 2 porous plates, reticular lamina etc. is set in groove at least, make the mobile rectificationization in the groove, suppress to silt generation up, can improve the displacement efficiency of coating fluid thus, can prevent that coating fluid viscosity from increasing the generation of situation.
Above-mentioned problem can be reached by following aspect of the present invention.
(1) a kind of electrophotographic photoreceptor manufacturing device, described electrophotographic photoreceptor manufacturing device has coating pan, can use pump liquid feed devices such as (2), with coating fluid by coating fluid storage tank (1), flow into from coating pan (4) below, the upper end overflow, the control liquid level, and the Electrophtography photosensor matrix can be impregnated in wherein and be coated with, it is characterized in that, coating fluid flow ipe (8) internal diameter of coating pan (4) below is connected by tapered portion (7) transition with the difference in internal diameters of coating pan (4) internal diameter, is provided with at least 2 cowling panels (3) in tapered portion (7) inside, (5).
As above-mentioned (1) described electrophotographic photoreceptor manufacturing device, it is characterized in that (2) height of described tapered portion (7) is at least more than the difference of coating pan (4) internal diameter one coating fluid flow ipe (8) internal diameter.
(3) as above-mentioned (1) or (2) described electrophotographic photoreceptor manufacturing device, it is characterized in that the height of described tapered portion (7) is at more than two times of difference of coating pan (4) internal diameter one coating fluid flow ipe (8) internal diameter.
(4) as above-mentioned (1) described electrophotographic photoreceptor manufacturing device, it is characterized in that, described cowling panel (3), (5) be located at the below of the lowest positions of this photoreceptor matrix dipping, at least be provided with 2, make and do not interfere in the dip coated with above-mentioned Electrophtography photosensor matrix, wherein be arranged at the top of 1 cowling panel (3) of topmost in tapered portion (7), has internal diameter with coating pan (4) internal diameter same degree, wherein be arranged at the below of 1 cowling panel (5) of foot in tapered portion (7), has internal diameter with coating fluid flow ipe (8) internal diameter same degree, when 3 or 3 being set when above, be provided with more than 1 or 1 in the tapered portion (7) between above-mentioned 2 cowling panels.
As above-mentioned (4) described electrophotographic photoreceptor manufacturing device, it is characterized in that (5) described cowling panel is porous plate or reticular lamina.
As above-mentioned (5) described electrophotographic photoreceptor manufacturing device, it is characterized in that (6) described porous plate and reticular lamina impose solvent resistance material or solvent resistance coating.
(7) as above-mentioned (5) described electrophotographic photoreceptor manufacturing device, it is characterized in that, the cowling panel (5) of cowling panel of described topmost (3) and foot is made up of the multi-disc plate of hole shape and configuration difference and replaceable setting respectively, corresponding to character such as coating fluid viscosity, select the combination of cowling panel (3) and (5), so that the flow velocity in the groove (4) is at central part and periphery homogeneous roughly.
As above-mentioned (5) described electrophotographic photoreceptor manufacturing device, it is characterized in that (8) aperture opening ratio of described porous plate or reticular lamina is in the scope of 30%-60%.
As above-mentioned (5) described electrophotographic photoreceptor manufacturing device, it is characterized in that (9) aperture of described porous plate is the scope that Φ 0.5mm is above, Φ 5mm is following.
As above-mentioned (5) described electrophotographic photoreceptor manufacturing device, it is characterized in that (10) mesh of described reticular lamina is the scope that 0.5mm is above, 5mm is following.
As above-mentioned (1) described electrophotographic photoreceptor manufacturing device, it is characterized in that (11) the coating fluid flow ipe is provided with the erection part of 15mm (D) at least below the foot cowling panel.
Again, above-mentioned problem can be reached by following aspect of the present invention.
(12) a kind of manufacture method of Electrophtography photosensor is characterized in that, described Electrophtography photosensor manufacture method is used each the described coating pan as above-mentioned the (1) one (11) item, makes Electrophtography photosensor.
(13) a kind of Electrophtography photosensor is characterized in that, described Electrophtography photosensor uses as each described electrophotographic photoreceptor manufacturing device of above-mentioned (1) Xiang Yidi (11) item is coated with.
As above-mentioned (13) described Electrophtography photosensor, it is characterized in that (14) photographic layer of described Electrophtography photosensor is made of charge generating layer and charge transport layer laminate.
The following describes effect of the present invention.
According to above-mentioned (1)-(5) described electrophotographic photoreceptor manufacturing device, can suppress to silt up generation by making the rectificationization of the liquid stream in the coating pan, improve the displacement efficiency of coating fluid, prevent that coating fluid viscosity from increasing the generation of situation.
According to above-mentioned (6) described electrophotographic photoreceptor manufacturing device, can be in employed coating fluid with an organic solvent.
According to above-mentioned (7) described electrophotographic photoreceptor manufacturing device, can the interior velocity flow profile of regulating tank.
According to above-mentioned (8) described electrophotographic photoreceptor manufacturing device, coating fluid is flow through from whole cowling panel equably towards the top, can the interior velocity flow profile of regulating tank.
According to above-mentioned (9) described electrophotographic photoreceptor manufacturing device, coating fluid is flow through from whole porous plate equably towards the top, can the interior velocity flow profile of regulating tank.
According to above-mentioned (10) described electrophotographic photoreceptor manufacturing device, coating fluid is flow through from whole reticular lamina equably towards the top, can the interior velocity flow profile of regulating tank.
According to above-mentioned (11) described electrophotographic photoreceptor manufacturing device, can even coupling bend etc. is set, also can give the cowling panel face in pipeline by below the cowling panel of foot, the erection part (D) of 15mm being set at least with uniform pressure.Thus, can be when coating fluid be flowed through the plate face of cowling panel (5) of foot the velocity flow profile homogeneous.
According to above-mentioned (12) described Electrophtography photosensor manufacture method, can carry out dip coated at the coating pan that the viscosity increase does not take place, thus, can make and form the Electrophtography photosensor that no blocky homogeneous is filmed.
According to above-mentioned (13), (14), can make and form the Electrophtography photosensor that no blocky homogeneous is filmed.
Promptly, the present invention is provided with 2 cowling panels at least, be more preferably, the length of regulation tapered portion length and coating fluid flow ipe erection part, take this, can make coating fluid flow into from the coating fluid inflow pipe, the rectificationization that flows in the groove of the diffusion of coating pan internal diameter, overflow, suppress to silt up generation, improve the displacement efficiency of coating fluid, prevent that coating fluid viscosity from increasing the generation of situation.Thus, can make the Electrophtography photosensor that the no blocky homogeneous of formation is filmed.
Again, the objective of the invention is to, prevent that by thixotropic coating fluid viscosity from increasing cause deep or light irregular.Except preventing that viscosity from increasing, also, obtain the effect of coating fluid temperature stabilization owing to, can prevent foreign body retention in the groove because of making the mobile rectificationization in the coating pan improve displacement efficiency.The present invention is also applicable to Newtonianism liquid.
The simple declaration of accompanying drawing
Figure 1 shows that conveying device synoptic diagram of the present invention, coating fluid is carried from storage tank with pump etc.
Fig. 2 is the enlarged drawing of coating pan of the present invention.
Figure 3 shows that conveying device synoptic diagram of the present invention, coating fluid is carried from storage tank with pump etc.
Figure 4 shows that the electrophotographic photoreceptor manufacturing device figure of conventional art.
Figure 5 shows that another figure of the electrophotographic photoreceptor manufacturing device of conventional art.
Figure 6 shows that the another figure of the electrophotographic photoreceptor manufacturing device of conventional art.
Figure 7 shows that electrophotographic photoreceptor manufacturing device figure of the present invention.
Figure 8 shows that another figure of the electrophotographic photoreceptor manufacturing device of conventional art.
Among the figure, 1 is the coating fluid storage tank, and 2 is solution feed pump, 3 is cowling panel (cowling panels of porous plate, reticular lamina etc.), and 4 is coating pan, and 5 is cowling panel, 6 is buoyancy aid, and 7 is tapered portion, and 8 is the coating fluid flow ipe, 9 are rectification layer (spherical body), 10 is cowling panel, and A is a tapered portion length, and B is the coating pan internal diameter, C is a coating fluid flow ipe internal diameter, and D is an erection part.
Embodiment
Below, specifically describe the present invention.
As shown in Figure 1, as above-mentioned (1) concrete giving an example, be a kind of like this electrophotographic photoreceptor manufacturing device: described electrophotographic photoreceptor manufacturing device has coating pan (4), use pump liquid feed devices such as (2), with coating fluid by coating fluid storage tank (1), flow into from coating pan (4) below, overflow the upper end, the control liquid level.Coating fluid flow ipe (8) internal diameter of coating pan (4) below is connected by tapered portion (7) transition with the difference in internal diameters of coating pan (4) internal diameter, in coating pan (4) inside two cowling panels (3), (5) is set at least.So, can make the interior mobile rectificationization of groove.Cowling panel (3), (5) can freely install, shirk at the institute allocation place of the tapered portion (7) of coating pan (4), and, when for example using the different coating fluid of viscosity, replaceable reticular lamina with different mesh count.
Again, as shown in Figure 2, concrete giving an example as above-mentioned (2) electrophotographic photoreceptor manufacturing device, height A as the tapered portion (7) of above-mentioned the 1st described coating pan (4), be at least more than the difference of coating pan (4) internal diameter B-coating fluid flow ipe (8) internal diameter C, thus, can make liquid stream rectificationization in the groove.
Again, concrete giving an example as above-mentioned (3) electrophotographic photoreceptor manufacturing device, the height of tapered portion as shown in Figure 2 (7) is at least more than two times of difference of coating pan (4) internal diameter B-coating fluid flow ipe (8) internal diameter C, thus, can make liquid stream rectificationization in the groove.
Again, concrete giving an example as above-mentioned (4) electrophotographic photoreceptor manufacturing device, as shown in Figure 3, below the lowest positions of this photoreceptor matrix dipping, at least 2 described cowling panels (3), (5) are set, so that it does not disturb with above-mentioned Electrophtography photosensor matrix in dip coated.Wherein, 1 cowling panel (3) that is arranged at topmost is in the top of tapered portion (7), and its internal diameter is as the internal diameter B of coating pan (4); 1 cowling panel (5) that is arranged at foot is in the below of tapered portion (7), and its internal diameter is as the internal diameter C of coating fluid flow ipe (8).When 3 or 3 being set when above, be provided with more than 1 or 1 in the tapered portion (7) between above-mentioned 2 cowling panels (3) (5).Thus, can make the liquid in the groove (4) flow rectificationization more sleekly.
Again, concrete giving an example as above-mentioned (5) electrophotographic photoreceptor manufacturing device is characterized in that described cowling panel is porous plate or reticular lamina.
Again, as above-mentioned (6), the porous plate or the reticular lamina of above-mentioned (5) record are porous plate or the reticular lamina that imposes solvent resistance material or solvent resistance coating, also can use in the coating fluid with an organic solvent.
Again, as above-mentioned (7), can be by according to the velocity flow profile in the regulating tanks such as configuration in the porous plate of above-mentioned (5) record or the hole shape of reticular lamina and hole, thus, and can be not simultaneously in the kind of coating fluid, the interior velocity flow profile of regulating tank easily.
Again, concrete giving an example as above-mentioned (8) electrophotographic photoreceptor manufacturing device, percentage of open area by described the 5th described porous plate or reticular lamina can make coating fluid flow through from whole cowling panel equably up in this feature of scope of 30%-60%.In addition, the also velocity flow profile in the adjustable slot (4).Have, for example described porous plate also can be that its perforation frequency (there is density in the hole) increases towards central part gradually from circumferential part again.
Again, as above-mentioned (9), the aperture by described the 5th porous plate is this feature of scope more than the Φ 0.5mm, below the 5mm, and coating fluid is flow through from whole porous plate up equably, and the velocity flow profile in also can regulating tank.
Again, concrete giving an example as above-mentioned (10) electrophotographic photoreceptor manufacturing device, mesh by described the 5th described reticular lamina is this feature of scope more than the 0.5mm, below the 5mm, coating fluid flows through from whole cowling panel up equably, and also can the interior velocity flow profile of regulating tank.
Again, concrete giving an example as above-mentioned (11) electrophotographic photoreceptor manufacturing device, as above-mentioned the 1st described electrophotographic photoreceptor manufacturing device in, by the coating fluid flow ipe this feature of erection part (D) more than the 15mm is set at least below the cowling panel of foot, even coupling bend etc. then is set, also can give the cowling panel face with uniform pressure in pipeline.Thus, when coating fluid is flowed through the plate face of cowling panel of foot, make the velocity flow profile homogeneous.
Again, as above-mentioned (12), the electrophotographic photoreceptor manufacturing device that has coating pan (4) by use is made this feature of Electrophtography photosensor, can carry out dip coated at the coating pan (4) that the viscosity rising does not take place, can make and form the Electrophtography photosensor that no blocky homogeneous is filmed.
Again, as above-mentioned (13), the electrophotographic photoreceptor manufacturing device that has coating pan (4) by use is made this feature of Electrophtography photosensor, can make and form the Electrophtography photosensor that no blocky homogeneous is filmed, and obtains high resolution image.
Again, as above-mentioned (14), the photographic layer by described Electrophtography photosensor constitutes this feature by charge generating layer and charge transport layer laminate, can form the Electrophtography photosensor that no blocky homogeneous is filmed, and obtains high resolution image.
Fig. 4, Figure 5 shows that by 1 cowling panel (3) or spherical body (9) and constitute the rectification layer, the method in the past that rectification is carried out in the top of the rectification mechanism in the coating pan.Yet, according to this method, the gap location of the tapered portion below the cowling panel of diffusion and the spherical body of tapered portion side surface side, the place of silting up that the flow velocity of generation coating fluid slows down or take place vortex from coating fluid flow ipe (8) bore towards coating pan (4) bore.Make thixotropy coating fluid circulation time with the conventional art, along with the circulation process of back time, the viscosity of silting part up increases, and the coating fluid viscosity in the coating pan is irregular, and this coating fluid is attached on the cylindrical substrate, causes deep or light irregular.
Again, Figure 6 shows that method in the past, at dipping during applied thing, control near the applied thing bottom liquid and flowing to coating pan wall direction and flow.As control mode, this method makes in advance and during the dip coated thing, forms maceration extract stream simultaneously on the floating what coating of the turbination buoyancy aid liquid level, prevents to use deep or light irregular in the dip coated of thixotropy coating fluid.Yet, as mentioned above,, reduce the viscosity of coating fluid for enhancing productivity, flood, if improve pulling speed, because the narrow gaps of buoyancy aid and coating pan inwall, during lifting, the gap velocity part is too fast, and the deep or light irregular of longitudinal stripe shape taken place.
Above-mentioned conventional art is that silting up once again of being taken place disperseed.And the present invention is a kind of technology of not silting up.
The present invention is by being provided with 2 cowling panels (cowling panels of porous plate or reticular lamina etc.) at least, be more preferably, length by regulation tapered portion length and coating fluid flow ipe erection part, coating fluid is flowed into, towards the diffusion of coating pan internal diameter homogeneous, overflow from the coating fluid inflow pipe, make the rectificationization that flows in the groove, suppress to silt up generation, improve the displacement efficiency of coating fluid, prevent that coating fluid viscosity from increasing the generation of situation.Thus, can make the Electrophtography photosensor that the no blocky homogeneous of formation is filmed.
Fig. 7, Figure 8 shows that electrophotographic photoreceptor manufacturing device figure of the present invention, this manufacturing installation is a circulation system: the coating fluid that will be stored in coating fluid storage tank (1), from the below feed flow to coating pan (4), the coating fluid of overflow is recycled to coating fluid storage tank (1) by solution feed pump (2).
According to the present invention,, solved problem of the present invention by 2 cowling panels being set at least up and down in tapered portion (7).
Fig. 7 is the enforcement illustration when 2 cowling panels are set, and Fig. 8 is the enforcement illustration that is provided with more than 2, is the embodiment that 3 cowling panels are set among the figure.
Dimension D is represented the length of the 11st described (D) erection part.
Again, be preferably, size A (tapered portion length) is more than the difference of coating pan internal diameter one coating fluid flow ipe internal diameter, and the erection part length D of coating fluid flow ipe (8) is more than the 15mm.Can avoid disorder, can avoid because the skew of the caused flow direction of bending channel portion of coupling bend etc. because of the caused coating fluid stream of rapid expansion of the fluid passage that is used to flow into coating fluid.
As usable range of the present invention, be preferably, form the operation of filming from dip coated, coating fluid of the present invention is advisable for the 1mPas-800mPas degree.Mean flow rate is advisable with 0.003m/s-0.02m/s in the groove.
Supporting mass
As the electric conductivity supporting mass that is used for Electrophtography photosensor, can use its volume resistance is 10
10The electric conductivity supporting mass that (Ω cm) is following, for example, can use metal as aluminium, nickel, chromium, nickel-chrome, copper, gold, silver, platinum etc., metal oxide as tin oxide, indium oxide etc., use evaporation or sputtering method, make film like or be coated on plastics cylindraceous, the paper, perhaps with the sheet material of aluminium, aluminium alloy, nickel, stainless steel etc. by methods such as extruding, stretchings, after making the raw material tubulose, use the surface treatment of cutting, superfinishing, grinding etc.Again, annular nickel strap, the ring stainless steel band of the clear 52-36016 communique announcement of Jap.P. Publication Laid-Open also can be used as the electric conductivity supporting mass.
Have again, also the electric conductivity powder can be scattered in the suitable adhering resin, be coated on the above-mentioned supporting mass, be used as the electric conductivity supporting mass.
Photographic layer
Photographic layer both can be a single-layer type, also can be lamination-type.At first, do an explanation with regard to charge generating layer.
Charge generating layer as required, also can use adhesive resin for being the layer of principal ingredient with electric charge generation material.As electric charge generation material, can use mineral-type materials and organic class material.
Mineral-type materials can be enumerated crystallite selenium, amorphism selenium, selenium-tellurium, selenium-tellurium-halogen, selenium-beryllium compound etc.
On the other hand, can use material known as organic class material.For example, metal phthalocyanine, the phthualocyanine pigment of metal-free phthalocyanine etc., reddish black orchid (azulenium) pigment salt, side's (shape) sour methine ester (ス Network エ ア リ ッ Network acid メ チ Application) pigment, AZO pigments with carbazole skeleton, AZO pigments with triphenylamine skeleton, AZO pigments with diphenylamine skeleton, AZO pigments with dibenzothiophene skeleton, AZO pigments with Fluorenone skeleton, the AZO pigments of Ju You oxadiazole skeleton has the AZO pigments of two talan (stilbene) skeleton, AZO pigments with Er Ben Yi Xi oxadiazole skeleton, AZO pigments with diphenylethyllene carbazole skeleton, perylene (perylene) series pigments, anthraquinone system or encircle the benzoquinones series pigments more, the quinone imines series pigments, diphenyl methane and triphenyl methane series pigments, benzo anthraquinone and naphthoquinones series pigments, cyanine and azomethine series pigments, indigo-blue series pigments, phenylbenzene imidazoles series pigments etc.The potpourri that these electric charge generation materials can be used alone or two or more kinds.
The photographic layer of the photoreceptor that uses among the present invention both can be a single layer structure, also can be rhythmo structure.For ease of explanation, at first rhythmo structure narration from constituting by charge generating layer and charge transport layer.
Charge generating layer is for electric charge generation material being the layer of principal ingredient.
Charge generating layer can use known electric charge generation material.Can enumerate monoazo pigment, disazo pigment, trisazo pigment, perylene series pigments, perynone series pigments, quinacridone pigment, benzoquinones as its representative is polycondensation polycyclic compund, side (shape) acid (acid of ス Network ア リ ッ Network) series pigments, other phthalocyanine based dye, naphthalene cyanines series pigments, reddish black orchid (azulenium) pigment salt etc.
The potpourri that these electric charge generation materials can be used alone or two or more kinds.
Charge generating layer can be as required, electric charge generation material and adhesive resin one reinstated bowl mill, vertical ball mill, sand mill, ultrasound wave etc. be scattered in the appropriate solvent, coats on the electric conductivity supporting mass dry formation.
As required, the adhesive resin that can be used for charge generating layer can have been enumerated: polyamide, polyurethane, epoxy resin, polyketone, polycarbonate, silicone resin, polyvinyl butyral, acryl resin, polyvinyl formal, tygon ketone, polystyrene, polysulfones, the poly N-vinyl carbazole, polyacrylamide, polyvinyl benzal resin (Port リ PVC ニ Le ベ Application ザ-Le), polyester, phenolic resin, vinyl chloride one vinyl acetate copolymer, polyvinyl acetate, polydiphenyl ether, polyamide, polyvinylpyridine, cellulose-based resin, casein, polyvinyl alcohol (PVA), polyvinyl pyrrolidone etc.The consumption of adhesive resin is preferably, and is the 0-500 weight portion for 100 weight portion electric charge generation materials, is preferably the 10-300 weight portion.The interpolation of adhesive resin both can be before disperseing, and also can be to carry out after disperseing.
Here employed solvent can be enumerated: isopropyl alcohol, acetone, MEK, cyclohexanone, tetrahydrofuran, dioxan, ethyl cellosolve, ethyl acetate, methyl acetate, methylene chloride, monochloro benzene, cyclohexane, toluene, dimethylbenzene, sherwood oil etc.
Particularly, ketone series solvent, ester series solvent, ether series solvent can well use.These solvents both may be used alone, two or more kinds may be mixed to use.
Charge generating layer is a principal ingredient with electric charge generation material, solvent and adhesive resin, but wherein also can contain sensitizer, spreading agent, surfactant, silicone oil etc.As the coating process of coating fluid, can use methods such as dip coated method, spraying rubbing method, making beating rubbing method, nozzle rubbing method, method of spin coating, annular rubbing method.
The thickness of charge generating layer is advisable with 0.01-5 μ m, is preferably 0.1-2 μ m.
Charge transport layer can and be scattered in the appropriate solvent charge transport material and adhesive resin dissolving, it is coated on the charge generating layer dry formation again.Optionally, also can add or add plastifier more than two kinds, smooth agent etc. separately again.
The charge transport material has hole transportation of substances and electron transport material.
As the electron transport material, can enumerate, for example, chloranil, bromine quinone, tetracyanoethylene, four cyanide quinolines and bismethane, 2,4,7-trinitro--9-Fluorenone, 2,4,5,7-tetranitro-9-Fluorenone, 2,4,5,7-tetranitro xanthone, 2,4,8-trinitro-sulfo-xanthone, 2,6,8-trinitro--4H-indeno [1,2-b] thiophene-4-ketone, 1,3,7-trinitro-dibenzothiophene-5, the electron accepter material of 5-dioxide, quinone derivatives etc.
As the cavity conveying material, for example can enumerate, poly N-ethylene carbozole and derivant thereof, poly--γ-carbazyl ethyl glutamate (カ Le バ ゾ リ Le エ チ Le グ Le メ-ト) and derivant thereof, pyrene (pyrene)-formaldehyde condensation products and derivant thereof, tygon pyrene (pyrene), the tygon phenanthrene, polysilane, oxazole derivatives, the oxadiazoles derivant, imdazole derivatives, one arylamine derivant, Diaromatic amine derivatives, the triarylamine derivant, talan (stilbene) derivant, α-phenyl diphenyl ethylene derivatives, benzidine derivative, the diarylmethanes derivant, triarylmethane derivatives, 9-styrene anthracene derivant, pyrazoline derivative, the divinyl benzene derivative, hydazone derivative, indene derivative, butadiene derivatives, the pyrene derivant, the distyrene derivant, enamine derivates etc., other well known materials.These charge transport materials can use separately, use more than two kinds also capable of being combined.
As adhesive resin, can use polystyrene, styrene-acrylonitrile copolymer, Styrene-Butadiene, styrene-maleic anhydride copolymer, polyester, Polyvinylchloride, vinyl chloride-vinyl acetate copolymer, polyvinyl acetate, Vingon, polyaryl resin, phenoxy resin, polycarbonate, the cellulose acetate resin, ethyl cellulose resin, polyvinyl butyral, polyvinyl formal, polyvinyl toluene, the poly N-vinyl carbazole, acryl resin, silicone resin, epoxy resin, melamine resin, urethane resin, phenolic resin, the thermoplasticity of alkyd resin etc. or heat-curing resin.
The consumption of charge transport material is the 20-300 weight portion to the adhesive resin of 100 weight portions, is preferably the 40-150 weight portion.
The thickness of charge transport layer is from resolution with reply performance and consider, to be advisable below the 25 μ m.Its lower limit is different according to employed system (particularly charged current potential etc.), but is preferably more than 5 μ m.
Here, as solvent, can use tetrahydrofuran, dioxazole, toluene, methylene chloride, monochloro-benzene, ethylene dichloride, cyclohexane, MEK, acetone etc.These solvents can be used alone, or and close and use more than two kinds.
Photographic layer constitutes occasion by above-mentioned rhythmo structure, is more preferably, and the organic sulfur based compound that should be contained in the photographic layer is contained in the charge transport layer.
Secondly, describe for the single layer structure occasion with regard to photographic layer.Can use all above-mentioned electric charge generation materials, charge transport material, adhesive resin etc. on the photographic layer of individual layer.Photographic layer is by electric charge generation material, charge transport material, above-mentioned chalcogenide compound and adhesive resin are dissolved and be scattered in the appropriate solvent, and through coating, drying forms.
Optionally, also can add plastifier and smooth agent etc.
Be preferably, the consumption of electric charge generation material is the 5-40 weight portion to the adhesive resin of 100 weight portions, is preferably, and the consumption of charge transport material is the 0-190 weight portion to the adhesive resin of 100 weight portions, is more preferably the 50-150 weight portion.
With electric charge generation material, adhesive resin and charge transport material together, solvent with tetrahydrofuran, dioxazole, ethylene dichloride, cyclohexane etc., after on dispersion machine etc., disperseing to form coating fluid, by method coatings such as dip coated method, spraying rubbing method, making beating rubbing method, nozzle rubbing method, method of spin coating, annular rubbing methods, form photographic layer.The photographic layer thickness is advisable with 5-25 μ m.
Below, protective seam is described.When the protection series of strata were disperseed packing material and adhesive resin together by appropriate solvent, the compound that add, dissolving has two structures of the structure of hindered amine and hindered phenol structure was coated dry formation on the photographic layer.The compound of two structures by will having the structure of hindered amine and hindered phenol structure also closes on the protective seam that is used in the top layer of photoreceptor; can suppress photoreceptor because of using the caused deterioration of ozone isoreactivity gas that causes for a long time repeatedly; not only improve mar proof, and can improve picture steadiness tremendously.
The ratio of the packing material and the compound of two structures with the structure of hindered amine and hindered phenol structure is advisable with 0.01 weight %-50 weight % to packing material, is more preferably, to 0.1 weight %-20 weight % of packing material.Greater than requirement, the low phenomenon of abrasion resistance properties appears sometimes then as its addition, and very few as its addition, then can not bring into play the effect of abundant inhibition abnormal image.
As the adhesive resin that protective seam uses, can enumerate: as ABS resin; the ACS resin, alkene-vinyl monomer multipolymer, chlorinated polyether; the aryl resin, phenolic resin, polyacetal resin; polyamide, polyene amine-imide resin, polyacrylate; polyene propyl group sulfone, polybutylene, polybutylene terephthalate; polycarbonate, polyethersulfone, tygon; polyethylene terephthalate, polyimide, acryl resin; polymethylpentene, polypropylene, poly-to benzene oxygen; polysulfones, polystyrene, polyene propyl diester; the AS resin, butadiene-styrene copolymer, polyurethane; Polyvinylchloride, Vingon, the resin of epoxy resin etc.Consider that from the dispersiveness of packing material, residual electric potential, the defective of filming polycarbonate or polyene propyl diester are effective especially, useful.
Packing material can be categorized as organic property filler and inorganic nature filler usually.Can enumerate as organic property filler material: as the fluororesin powder of teflon etc., silicone powders, α-carbon dust etc., can enumerate as the inorganic nature filler material: as the metal powder of copper, tin, aluminium, indium etc., metal oxide as the tin oxide of silicon dioxide, tin oxide, zinc paste, titanium dioxide, aluminium oxide, zirconia, indium oxide, antimony oxide, bismuth oxide, calcium oxide, coating antimony, the indium oxide of coated with tin etc., as the metal fluoride of tin fluoride, calcium fluoride, aluminum fluoride etc., as potassium titanate, boron nitride etc.In these fillers, consider, use inorganic pigment to help improving mar proof as inorganic filler from the hardness of filler.
Have, these fillers can carry out surface treatment with at least a surface conditioning agent again.Like this, the dispersiveness that helps packing material.The low rising that not only causes residual electric potential of the dispersiveness of filler, and also cause and the generation of the low and paint film defect of the transparency of filming also cause wear resistance decrease, therefore, there is the tendency of the problem that develops into obstruction high-durability or hi-vision image quality.
As surface conditioning agent, can use employed in the past surface conditioning agent.But be preferably the surface conditioning agent that use can be kept the packing material insulativity.For example, it is desirable to from the dispersiveness of packing material and picture quality, can use coupling (connection) agent, the aluminium of titanate esters system is that coupling agent, zirconium aluminate are coupling agent, higher fatty acid etc., perhaps, with above-mentioned coupling agent and silane coupling agent hybrid processing, and Al
2O
3, TiO
2, ZrO
2, silane, aluminium stearate etc. or its hybrid processing.Increase by the processing of silane coupling agent influence,, can suppress its influence by imposing the hybrid processing of above-mentioned surface conditioning agent and silane coupling agent to picture quality.About surface treatment amount, difference is preferably 3-30 weight % according to the average primary particle diameter of employed packing material, is more preferably 5-20 weight %.If surface treatment amount is less than above-mentioned value, then can not get dispersion effect, cause residual electric potential significantly to rise at most excessively.
As employed solvent, can use tetrahydrofuran, dioxazole, toluene, methylene chloride, monochloro-benzene, ethylene dichloride, cyclohexanone, MEK, acetone etc., can use the solvent that uses in the charge transport layer.
During dispersion, be preferably and use the big solvent of viscosity, use the big solvent of volatility and be preferably during coating.When not having the solvent that satisfies these conditions, can mix the solvent that has its rerum natura more than two kinds respectively and use, dispersiveness and residual electric potential for packing material have good effect.
By in protective seam, adding above-mentioned charge transport material of giving an example, be effective, favourable for the reduction of residual electric potential and the raising of picture quality.At this moment; the ionization potential (Ip) of the charge transport material that contains in the protective seam or identical with (Ip) of the charge transport material that contains in the photographic layer; or make an addition to protective seam by the charge transport material that will become littler; take this; raising has the effect of further reduction residual electric potential for the electric charge injection of protective seam.Again, ionization potential (Ip) can be recorded by the whole bag of tricks such as spectroscopic method, electrochemical methods.
Above-mentioned packing material can use methods in the past such as bowl mill, vertical ball mill, sand mill, ultrasound wave to disperse.Wherein, consider, use the dispersion of carrying out from the less bowl mill of the impurity in the external world better from dispersed viewpoint.About the dielectric material that uses, can use media such as the zirconia that in the past used, aluminium oxide, agate.
Again, when the average primary particle diameter of filler is 0.01-0.5 μ m, help the transmittance and the mar proof of protective seam, the preferential use.The average primary particle diameter of filler when 0.01 μ m is following, cause mar proof reduce, dispersed low inferior, the average primary particle diameter of filler is during greater than 0.5 μ m, then the precipitability of filler is promoted, the conjunctiva of toner perhaps takes place.
As the formation method of protective seam, can use the method coating of dip coated method, spraying rubbing method, making beating rubbing method, nozzle rubbing method, method of spin coating, annular rubbing method etc.Consider from being coated with film uniformity, be advisable with spray-on process.
Have, the thickness of protective seam can be finished by once being coated with again, and also can be formed by the repetition coating more than the secondary.Uniform filling from diaphragm, it is desirable that protective seam forms multilayer.Thus, the effect that can further obtain to reduce residual electric potential, improves resolution and mar proof.Again, the thickness of protective seam is advisable with 0.1-10 μ m.
Between electric conductivity supporting mass and photographic layer, prime coat can be set.
Prime coat is a principal ingredient with the resin usually, considers and will use the solvent application photographic layer thereon, is preferably, and these resins are for the high resin of the solvent resistance of common organic solvent.
As above-mentioned resin, can enumerate: as the water soluble resin of polyvinyl alcohol (PVA), casein, sodium polyacrylate etc., pure soluble resin as copolymer nylon, methoxy nylon etc., as polyurethane, melamine resin, phenolic resin, alkyd one melamine resin, epoxy resin etc., form three dimensional network ocular structure gel-type resin etc.Again, be reduction of preventing ripple and residual electric potential etc., also can add the micropowder pigment of the metal oxide that titanium dioxide, silicon dioxide, aluminium oxide, zirconia, tin oxide, indium oxide etc. exemplify in the prime coat.
These prime coats can form with appropriate solvent and rubbing method as above-mentioned photographic layer.
In addition, as prime coat of the present invention, also can use silane coupling agent, titanium coupling agent, chromium coupling agent etc.In addition, can well use and be provided with anodization Al on it
2O
3Prime coat, perhaps make organism or the SiO that established law is provided with Parylene (バ リ レ Application) etc. thereon by vacuum film
2, SnO
2, TiO
2, ITO, CeO
2Deng the prime coat of inorganics.Also can use other known prime coat.The prime coat thickness is advisable with 0-5 μ m.
Embodiment
Below, be described in more detail by embodiment, but the present invention is not limited to these embodiment.
The formation of filming of dip coated prime coat, charge generating layer, charge transport layer in turn, Visual Confirmation.In the painting process of charge generating layer, after use thixotropy coating fluid is circulated in device of the present invention or device in the past with fix time, carry out dip coated.
The charge generating layer coating fluid prescription that uses among the embodiment is as follows:
1. the formation of prime coat coating fluid
Disperse following material, preparation prime coat coating fluid:
Melamine resin 5 weight portions
Titanium dioxide 20 weight portions
Cyclohexanone 35 weight portions
MEK 35 weight portions
2. the formation of charge generating layer coating fluid
Polyvinyl alcohol (PVA) butyral 0.5 weight portion
Cyclohexanone 40 weight portions
MEK 60 weight portions
After bowl mill disperses, add cyclohexanone and MEK, make the charge generating layer coating fluid.
3. the formation of charge transport layer coating fluid
The dissolving following compositions, preparation charge transport layer coating fluid:
Structural formula 1:
Polycarbonate 6 weight portions
Cyclohexanone 45 weight portions
Tetrahydrofuran 45 weight portions
Silicone oil 0.001 weight portion
Prime coat (UL) coating fluid of aforementioned preparation is coated on the aluminum cylindrical substrate of external diameter 30mm, length 340mm,, formed the prime coat of thick 5 μ m with 110 ℃ of dryings 15 minutes.
Secondly, coating, dry charge generating layer (CGL), charge transport layer (CTL) make lamination photoreceptor test portion thereon.Make that the charge generating layer dry film thickness is 0.2 μ m, the charge transport layer thickness becomes 23 μ m.
Employed thixotropy pigment-dispersing type coating fluid is 3.5mPas.The interior mean flow rate of groove is 0.008m/s among the embodiment.
The device condition of embodiment and comparative example is as follows:
Table 1-1
| Rectification plate number (becoming the balk board of pressure loss) | The cowling panel shape | The cowling panel aperture | The cowling panel aperture opening ratio | The coating pan internal diameter | ||||
| Embodiment 1 | 2 | Porous plate | Φ2mm | 40％ | 59.5mm | |||
| Comparative example 1 | 1 | Porous plate | Φ2mm | 40％ | 59.5mm | |||
| Comparative example 2 | Spherical rectification layer (10mm stainless steel ball) | - | - | 59.5mm | ||||
| Comparative example 3 | The buoyancy aid mode | - | - | - | 59.5mm | |||
| Embodiment 2 | 2 | Porous plate | Φ2mm | 40％ | 59.5mm | |||
| Embodiment 3 | 2 | Porous plate | Φ2mm | 40％ | 59.5mm | |||
| Embodiment 4 | 2 | Porous plate | Φ2mm | 40％ | 59.5mm | |||
| Embodiment 5 | 2 | Porous plate | Φ2mm | 40％ | 59.5mm | |||
| Embodiment 6 | 2 | Porous plate | Φ2mm | 20％ | 59.5mm | |||
| Embodiment 7 | 2 | Porous plate | Φ2mm | 30％ | 59.5mm | |||
| Embodiment 8 | 2 | Porous plate | Φ2mm | 50％ | 59.5mm | |||
| Embodiment 9 | 2 | Porous plate | Φ2mm | 60％ | 59.5mm | |||
| Embodiment 10 | 2 | Porous plate | Φ2mm | 70％ | 59.5mm | |||
| Embodiment 11 | 2 | Porous plate | Φ0.5mm | 40％ | 59.5mm | |||
| Embodiment 12 | 2 | Porous plate | Φ1mm | 40％ | 59.5mm | |||
| Embodiment 13 | 2 | Porous plate | Φ3mm | 40％ | 59.5mm | |||
| Embodiment 14 | 2 | Porous plate | Φ5mm | 40％ | 59.5mm | |||
| Embodiment 15 | 2 | Porous plate | Φ6mm | 40％ | 59.5mm | |||
| Embodiment 16 | 2 | 3.5 reticular lamina (linear 1.2mm) | Mesh 6.06mm | 69.70％ | 59.5mm | |||
| Embodiment 17 | 2 | 3.5 reticular lamina (linear 1.6mm) | Mesh 4.75mm | 56％ | 59.5mm | |||
| Embodiment 18 | 2 | 3.5 reticular lamina (linear 1.5mm) | Mesh 4.85mm | 58.30％ | 59.5mm | |||
| Embodiment 19 | 2 | 6 reticular laminas (linear 1.2mm) | Mesh 3.03mm | 51.20％ | 59.5mm | |||
| Embodiment 20 | 2 | 7 reticular laminas (linear 1.1mm) | Mesh 2.08mm | 42.80％ | 59.5mm | |||
| Embodiment 21 | 2 | 12 reticular laminas (linear 0.8mm) | Mesh 1.01mm | 31.10％ | 59.5mm | |||
| Embodiment 22 | 2 | 18 reticular laminas (linear 0.37mm) | Mesh 1.04mm | 53.80％ | 59.5mm | |||
| Embodiment 23 | 2 | Porous plate | Φ2mm | 40％ | 97.6mm | |||
| Embodiment 24 | 2 | Porous plate | Φ2mm | 40％ | 159.2mm | |||
| Embodiment 25 | 3 | Porous plate | Φ2mm | 40％ | 159.2mm | |||
| Embodiment 26 | 2 | Porous plate | Φ2mm | 40％ | 59.5mm |
| Embodiment 27 | 2 | Porous plate | Φ2mm | 40％ | 59.5mm |
| Embodiment 28 | 2 | Porous plate | Φ2mm | 40％ | 59.5mm |
| Embodiment 29 | 2 | Porous plate | Φ2mm | 40％ | 59.5mm |
| Embodiment 30 | 2 | Porous plate | Φ2mm | 40％ | 59.5mm |
Table 1-2
| Coating fluid flow ipe internal diameter | Tapered portion length | Tapered portion length/(coating pan internal diameter one coating fluid flow ipe internal diameter) | Coating fluid flow ipe erection part length | The coating fluid circular flow | ||
| Embodiment 1 | 23mm | 36.5mm | 1 | 15mm | The 1L/ branch | |
| Comparative example 1 | 23mm | 36.5mm | 1 | 15mm | The 1L/ branch | |
| Comparative example 2 | 23mm | 36.5mm | 1 | 15mm | The 1L/ branch | |
| Comparative example 3 | 23mm | 36.5mm | 1 | 15mm | The 1L/ branch | |
| Embodiment 2 | 23mm | 27mm | 0.75 | 15mm | The 1L/ branch | |
| Embodiment 3 | 23mm | 55mm | 1.5 | 15mm | The 1L/ branch | |
| Embodiment 4 | 23mm | 73mm | 2 | 15mm | The 1L/ branch | |
| Embodiment 5 | 23mm | 91mm | 2.5 | 15mm | The 1L/ branch | |
| Embodiment 6 | 23mm | 36.5mm | 1 | 15mm | The 1L/ branch | |
| Embodiment 7 | 23mm | 36.5mm | 1 | 15mm | The 1L/ branch | |
| Embodiment 8 | 23mm | 36.5mm | 1 | 15mm | The 1L/ branch | |
| Embodiment 9 | 23mm | 36.5mm | 1 | 15mm | The 1L/ branch | |
| Embodiment 10 | 23mm | 36.5mm | 1 | 15mm | The 1L/ branch | |
| Embodiment 11 | 23mm | 36.5mm | 1 | 15mm | The 1L/ branch | |
| Embodiment 12 | 23mm | 36.5mm | 1 | 15mm | The 1L/ branch | |
| Embodiment 13 | 23mm | 36.5mm | 1 | 15mm | The 1L/ branch | |
| Embodiment 14 | 23mm | 36.5mm | 1 | 15mm | The 1L/ branch | |
| Embodiment 15 | 23mm | 36.5mm | 1 | 15mm | The 1L/ branch | |
| Embodiment 16 | 23mm | 36.5mm | 1 | 15mm | The 1L/ branch | |
| Embodiment 17 | 23mm | 36.5mm | 1 | 15mm | The 1L/ branch | |
| Embodiment 18 | 23mm | 36.5mm | 1 | 15mm | The 1L/ branch | |
| Embodiment 19 | 23mm | 36.5mm | 1 | 15mm | The 1L/ branch | |
| Embodiment 20 | 23mm | 36.5mm | 1 | 15mm | The 1L/ branch | |
| Embodiment 21 | 23mm | 36.5mm | 1 | 15mm | The 1L/ branch | |
| Embodiment 22 | 23mm | 36.5mm | 1 | 15mm | The 1L/ branch | |
| Embodiment 23 | 29.4mm | 68mm | 1 | 15mm | 2.5L/ divide | |
| Embodiment 24 | 35.7mm | 123.5mm | 1 | 15mm | The 5L/ branch | |
| Embodiment 25 | 35.7mm | 123.5mm | 1 | 15mm | The 5L/ branch | |
| Embodiment 26 | 23mm | 36.5mm | 1 | 10mm | | The 1L/ branch | |
| Embodiment 27 | 23mm | 36.5 |
1 | 5mm | The 1L/ branch |
| Embodiment 28 | 23mm | 36.5 |
1 | 0mm | The 1L/ branch |
| Embodiment 29 | 23mm | 36.5 |
1 | 20mm | The 1L/ branch |
| Embodiment 30 | 23mm | 36.5 |
1 | 30mm | The 1L/ branch |
Embodiment result is illustrated in the table 2, wherein, O: do not have deep or light irregular, *: have deep or light irregular.
Table 2
| After the circulation in 1 hour | After the circulation in 6 hours | After the circulation in 12 hours | After the circulation on the 1st | After the circulation on the 3rd | After the circulation on the 7th | |||||
| Embodiment 1 | O | O | O | × | × | × | ||||
| Comparative example 1 | × | × | × | × | × | × | ||||
| Comparative example 2 | O | × | × | × | × | × | ||||
| Comparative example 3 | × | - | - | - | - | - | ||||
| Embodiment 2 | O | O | × | × | × | × | ||||
| Embodiment 3 | O | O | O | × | × | × | ||||
| Embodiment 4 | O | O | O | O | × | × | ||||
| Embodiment 5 | O | O | O | O | O | O | ||||
| Embodiment 6 | × | × | × | × | × | × | ||||
| Embodiment 7 | O | O | O | × | × | × | ||||
| Embodiment 8 | O | O | O | × | × | × | ||||
| Embodiment 9 | O | O | O | × | × | × | ||||
| Embodiment 10 | O | O | × | × | × | × | ||||
| Embodiment 11 | O | O | O | × | × | × | ||||
| Embodiment 12 | O | O | O | × | × | × | ||||
| Embodiment 13 | O | O | O | × | × | × | ||||
| Embodiment 14 | O | O | × | × | × | × | ||||
| Embodiment 15 | O | × | × | × | × | × | ||||
| Embodiment 16 | O | × | × | × | × | × | ||||
| Embodiment 17 | O | O | × | × | × | × | ||||
| Embodiment 18 | O | O | × | × | × | × | ||||
| Embodiment 19 | O | O | O | × | × | × | ||||
| Embodiment 20 | O | O | O | × | × | × | ||||
| Embodiment 21 | O | O | O | × | × | × |
| Embodiment 22 | O | O | O | × | × | × |
| Embodiment 23 | O | O | O | × | × | × |
| Embodiment 24 | O | O | × | × | × | × |
| Embodiment 25 | O | O | O | × | × | × |
| Embodiment 26 | O | O | × | × | × | × |
| Embodiment 27 | O | O | × | × | × | × |
| Embodiment 28 | O | × | × | × | × | × |
| Embodiment 29 | O | O | O | × | × | × |
| Embodiment 30 | O | O | O | O | × | × |
According to The above results, can confirm from embodiment 1, embodiment 23-25 and comparative example 1,2, owing to be provided with at least 2 cowling panels, obtained the 1st of the present invention's effect.
Again, 3 result as a comparative example, find since silt up cause taking place deep or light irregular, but if improve dipping and pulling speed, then because the gap of buoyancy aid and coating pan inwall is narrow, when promoting, the flow velocity in gap is local to be accelerated, and the deep or light irregular of longitudinal stripe shape taken place.
Again, according to embodiment 1-5, can confirm, effect as the 2nd, 3 of the present invention, the height of tapered portion is at least more than coating pan internal diameter one coating fluid flow ipe internal diameter (difference), be more preferably, the height of tapered portion is more than 2 times of difference of coating pan internal diameter one coating fluid flow ipe internal diameter.
Again, as the 8th of the present invention's effect, in aperture opening ratio was 20% embodiment 6, it is deep or light irregular that striated takes place, and in aperture opening ratio was 70% embodiment 10, the circulation back took place deep or light irregular in 12 hours.In view of the above, below 30%, then hole count reduces as if the aperture opening ratio that makes cowling panel, thereby the increasing of the flow velocity in each hole, has influence on the deep or light irregular generation of striated.In addition, if aperture opening ratio surpasses 70%, then pressure loss reduces, and therefore, causes rectification effect to reduce easily, silts up.
Thus,, can confirm that it is 30% one 70% very effective that the cowling panel aperture opening ratio is made as from the result of embodiment 1,6-10.
Again, as the 9th of the present invention's effect, be among the embodiment 15 of Φ 6mm in the porous plate aperture, the circulation back took place deep or light irregular in 6 hours.In view of the above, because the porous plate aperture is more than Φ 6mm, then pressure loss reduces, and therefore, causes rectification effect to reduce easily, silts up.
Thus,, can confirm that the porous plate aperture is made as less than Φ 6mm effective from the result of embodiment 1,11-15.
Again, as the 10th of the present invention's effect, be among the embodiment 16 of 6.06mm at the reticular lamina mesh, the circulation back took place deep or light irregular in 6 hours.In view of the above,, therefore, cause rectification effect to reduce easily, silt up if the reticular lamina mesh is that then pressure loss reduces more than the 6mm.
Thus,, can confirm that it is following effective that the reticular lamina mesh is made as 6mm from the result of embodiment 1,16-22.
Again, as the 11st of the present invention's effect, from embodiment 1,27-30 result can confirm, the erection part length of coating fluid flow ipe is made as more than the 15mm very effective.
Again, effect as the 12nd, 13,14 of the present invention, transformation apparatus (λ=the 655nm that the photoreceptor of the photoreceptor of the embodiment 4,5 of the present invention coating and above-mentioned comparative example 1,2,3 is used for the color laser printer IPSIO Color5000 that company of Ricoh makes, 1200dpi, electron-baem spot 2.7 * 10
- 3Mm
2), form image, visual judge image quality.Half tone image is 2 * 2 dot image.The picture appraisal result is as follows.Photoreceptor be 1 hour the circulation after coated article, 1 day the circulation after coated article, 7 days the circulation after coated article each 5.
Table 3
| Half tone image | Remarks | ||
| |
After the circulation in 1 hour | 5 all no abnormal | |
| After the circulation on the 1st | 5 all no abnormal | ||
| After the circulation on the 7th | 2 generations are deep or light irregular | ||
| Embodiment 5 | After the circulation in 1 hour | 5 all no abnormal | |
| After the circulation on the 1st | 5 all no abnormal | ||
| After the circulation on the 7th | 5 all no abnormal | ||
| Comparative example 1 | After the circulation in 1 |
2 generations are deep or light irregular | |
| After the circulation on the 1st | 5 generations are deep or light irregular | ||
| After the circulation on the 7th | 5 generations are deep or light irregular | ||
| Comparative example 2 | After the circulation in 1 hour | 5 all no abnormal | |
| After the circulation on the |
1 generation is deep or light irregular | ||
| After the circulation on the 7th | 5 generations are deep or light irregular | ||
| Comparative example 3 | After the circulation in 1 |
1 generation is deep or light irregular | The vertical stripe shape is deep or light irregular |
| After the circulation on the |
3 generations are deep or light irregular | The vertical stripe shape is deep or light irregular | |
| After the circulation on the 7th | 5 generations are deep or light irregular | The vertical stripe shape is deep or light irregular |
According to The above results, can confirm that the photoreceptor that uses the present invention to form can obtain high resolution image.
Claims (14)
1. electrophotographic photoreceptor manufacturing device, described electrophotographic photoreceptor manufacturing device has coating pan, can use pump liquid feed devices such as (2), with coating fluid by coating fluid storage tank (1), flow into upper end overflow, control liquid level from coating pan (4) below, and the Electrophtography photosensor matrix can be impregnated in wherein and be coated with, it is characterized in that:
Coating fluid flow ipe (8) internal diameter of coating pan (4) below is connected by tapered portion (7) transition with the difference in internal diameters of coating pan (4) internal diameter, be provided with at least 2 cowling panels (3 in tapered portion (7) inside, 5), described at least 2 cowling panels (3,5) are provided with perpendicular to the longitudinal extension direction of tapered portion (7).
2. electrophotographic photoreceptor manufacturing device as claimed in claim 1 is characterized in that, the height of described tapered portion (7) is at least more than the difference of coating pan (4) internal diameter and coating fluid flow ipe (8) internal diameter.
3. electrophotographic photoreceptor manufacturing device as claimed in claim 1 or 2 is characterized in that, the height of described tapered portion (7) is more than two times of difference of coating pan (4) internal diameter and coating fluid flow ipe (8) internal diameter.
4. electrophotographic photoreceptor manufacturing device as claimed in claim 1, it is characterized in that, described cowling panel (3,5) be located at the below of the lowest positions of this photoreceptor matrix dipping, at least be provided with 2, make and do not interfere in the dip coated with above-mentioned Electrophtography photosensor matrix, wherein be arranged at the top of 1 cowling panel (3) of topmost in tapered portion (7), has internal diameter with coating pan (4) internal diameter same degree, wherein be arranged at the below of 1 cowling panel (5) of foot in tapered portion (7), has internal diameter with coating fluid flow ipe (8) internal diameter same degree, when 3 or 3 being set when above, be provided with more than 1 or 1 in the tapered portion (7) between above-mentioned 2 cowling panels.
5. electrophotographic photoreceptor manufacturing device as claimed in claim 4 is characterized in that, described cowling panel is porous plate or reticular lamina.
6. electrophotographic photoreceptor manufacturing device as claimed in claim 5 is characterized in that, described porous plate and reticular lamina impose solvent resistance material or solvent resistance coating.
7. electrophotographic photoreceptor manufacturing device as claimed in claim 5, it is characterized in that, the cowling panel (5) of cowling panel of described topmost (3) and foot is made up of the multi-disc plate of hole shape and configuration difference and replaceable setting respectively, corresponding to character such as coating fluid viscosity, select cowling panel (3,5) combination is so that the flow velocity in the groove (4) is at central part and periphery homogeneous roughly.
8. electrophotographic photoreceptor manufacturing device as claimed in claim 5 is characterized in that the aperture opening ratio of described porous plate and reticular lamina is in the 30%-60% scope.
9. electrophotographic photoreceptor manufacturing device as claimed in claim 5 is characterized in that, the aperture of described porous plate is the scope that Φ 0.5mm is above, Φ 5mm is following.
10. electrophotographic photoreceptor manufacturing device as claimed in claim 5 is characterized in that, the mesh of described reticular lamina is the scope that 0.5mm is above, 5mm is following.
11. electrophotographic photoreceptor manufacturing device as claimed in claim 1 is characterized in that, the coating fluid flow ipe is provided with the erection part of 15mm (D) at least below the foot cowling panel.
12. an Electrophtography photosensor manufacture method is characterized in that, described Electrophtography photosensor manufacture method is used each the described coating pan as above-mentioned claim 1-11, makes Electrophtography photosensor.
13. an Electrophtography photosensor is characterized in that, described Electrophtography photosensor uses as each described electrophotographic photoreceptor manufacturing device of above-mentioned claim 1-11 is coated with.
14. Electrophtography photosensor as claimed in claim 13 is characterized in that, the photographic layer of described Electrophtography photosensor is made of charge generating layer and charge transport layer laminate.
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| JP5274628B2 (en) * | 2010-08-17 | 2013-08-28 | キヤノン株式会社 | Coating apparatus, method for producing electrophotographic photosensitive member, and method for mass production of electrophotographic photosensitive member |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5681392A (en) * | 1995-12-21 | 1997-10-28 | Xerox Corporation | Fluid reservoir containing panels for reducing rate of fluid flow |
| US6010572A (en) * | 1996-08-07 | 2000-01-04 | Fuji Xerox Co., Ltd. | Dip coating apparatus for manufacturing electrophotographic photoreceptor |
| US6180310B1 (en) * | 2000-08-14 | 2001-01-30 | Xerox Corporation | Dip coating process |
| JP2003076089A (en) * | 2001-08-31 | 2003-03-14 | Bridgestone Corp | Method for manufacturing roller for image forming device, dip coating device and roller for image forming device |
-
2005
- 2005-04-30 CN CNB2005100667213A patent/CN100373261C/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5681392A (en) * | 1995-12-21 | 1997-10-28 | Xerox Corporation | Fluid reservoir containing panels for reducing rate of fluid flow |
| US6010572A (en) * | 1996-08-07 | 2000-01-04 | Fuji Xerox Co., Ltd. | Dip coating apparatus for manufacturing electrophotographic photoreceptor |
| US6180310B1 (en) * | 2000-08-14 | 2001-01-30 | Xerox Corporation | Dip coating process |
| JP2003076089A (en) * | 2001-08-31 | 2003-03-14 | Bridgestone Corp | Method for manufacturing roller for image forming device, dip coating device and roller for image forming device |
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| CN1693995A (en) | 2005-11-09 |
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