CN104749907A - Preparation method for large-format organic photoconductive drum and organic photoconductive drum prepared with preparation method - Google Patents
Preparation method for large-format organic photoconductive drum and organic photoconductive drum prepared with preparation method Download PDFInfo
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- CN104749907A CN104749907A CN201510193716.2A CN201510193716A CN104749907A CN 104749907 A CN104749907 A CN 104749907A CN 201510193716 A CN201510193716 A CN 201510193716A CN 104749907 A CN104749907 A CN 104749907A
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- light guide
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- photoconductive drum
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Abstract
The invention discloses a preparation method for a large-format organic photoconductive drum and the organic photoconductive drum prepared with the preparation method. The method adopts a way for forming a film by atomizing at low pressure, and comprises the following steps of (1) spraying dope of a pre-coating layer on a base of the large-format organic photoconductive drum, wherein the dope of the pre-coating layer is formed by dissolving nylon resin and solvent according to a mass rate of 1:25-50; (2) after the pre-coating layer is fully dried, spraying charge generating dope, wherein the charge generating dope is formed by uniformly dispersing Y-type titanyl phthalocyanine, polyvinyl butyral resin and solvent through a ball mill according to a mass rate of 1:(0.5-1.5):(200-300); (3) after a charge generating layer is fully dried, spraying charge transfer material, wherein the charge transfer material is formed by dissolving styryl triphenylamine, polycarbonate resin and solvent according to a mass rate of 1:(0.8-1.3):(30-50). According to the invention, shortcomings of current dip-coating methods are overcome, equipment input is little, and process control is simple, so that the preparation method is suitably used for preparing the large-format organic photoconductive drum.
Description
Technical field
The present invention relates to the organic light guide drum of electrostatic image forming apparatus, specifically, is a kind of preparation method of large format organic light guide drum and the organic light guide drum for preparing.
Background technology
Organic light guide drum on the aluminium base pipe of electric conductivity, applies organic light guide material layer and formed, and is electrostatic image forming apparatus (laser printer, digital duplicating machine and all-in-one multifunctional machine etc.) requisite core component.Its principle of work is: first carry out high-voltage charging to organic light guide drum surface, characteristic due to optical conductor is in the dark insulator, film surface is with certain current potential, then by LED or semiconductor laser, exposure scanning is carried out to charged organic light guide drum by needing to print/duplicate the digital signal exported, illumination place becomes conductor, surface potential declines, thus forms electrostatic latent image on organic light guide drum surface, then on paper, obtains visual picture by development, transfer printing, the process such as fixing.
The photosensitive rete of organic light guide drum mostly adopts function separation-type structure, it is made up of precoated shet, charge generation layer and charge transport layer, preparation technology's prior art of organic light guide drum mostly adopts dip coating, immersing successively by drum base (aluminum pipe) is equipped with in the dip tank of each coating, obtained organic light guide drum after drying.The thickness of each layer of light-sensitive surface and homogeneity determine the photoelectric properties parameter of organic light guide drum, in preparation technology, require that the control of rete precision is even higher at micron order.
Because the length of large format organic light guide drum is longer, when being prepared with dip coating, there is following problem: 1. because accuracy requirement is high, the fabrication design difficulty of dipping system is large, and manufacturing cost is expensive.2. because required dip tank is comparatively dark, in groove, feed liquid cycle balance control difficulty is large.3. dipping process controls difficulty greatly, and thicknesses of layers and homogeneity are not easy to ensure.4. because dip tank volume is large, required reduction of feed volume is large, is not suitable for Multi-varieties and Small-batch Production.
Summary of the invention
Technical matters to be solved by this invention is, provides a kind of low pressure atomizing membrane formation process that adopts to replace existing dip coating, by spray gun, each layer spray coating liquor is sprayed to respectively the method for obtained large format organic light guide drum on bulging base.
In order to solve the problems of the technologies described above, the technical solution used in the present invention is: a kind of preparation method of large format organic light guide drum, adopts low pressure atomizing membrane formation process, comprises the following steps:
1. on large format organic light guide drum drum base, spray precoated shet coating, the compound method of precoated shet coating is: nylon resin and solvent are formed by the mass ratio dissolving of 1:25-50;
2. after the abundant drying of precoated shet, spray electric charge generation coating, the preparing process of electric charge generation coating is: by Y type TiOPc, polyvinyl butyral resin, solvent by 1:(0.5-1.5): the mass ratio of (200-300) is uniformly dispersed by ball milling and is mixed with;
3. charge transport materials is sprayed, the compound method of charge transport materials after the abundant drying of charge generating layer: styryl triarylamine, polycarbonate resin, solvent are pressed 1:(0.8-1.3): (30-50) mass ratio dissolves formulated.
During spraying, the rotating speed of large format organic light guide drum controls at 200-300 rev/min, and spray gun moves back and forth speeds control in 20-40mm/ second, and spray gun is 10-20cm with the distance of drum base.
The organic light guide drum that the preparation method of above-mentioned large format organic light guide drum prepares.
The invention has the beneficial effects as follows: the shortcoming solving existing dip coating, has equipment investment few, technology controlling and process is simple, is applicable to very much the preparation of large format organic light guide drum.
Embodiment
Below in conjunction with embodiment, the present invention is described in further detail:
Functional material and the dip coating no significant difference such as charge generating material, charge transport materials that the present invention adopts, but due to film build method difference, to viscosity, the volatility requirements difference of film forming liquid, the selection and technical recipe of solvent there are differences.
The preparation method of large format organic light guide drum of the present invention, adopts low pressure atomizing membrane formation process, comprises the following steps:
1. on large format organic light guide drum drum base, spray precoated shet coating, the compound method of precoated shet coating is: nylon resin and solvent are formed by the mass ratio dissolving of 1:25-50;
2. after the abundant drying of precoated shet, spray electric charge generation coating, the preparing process of electric charge generation coating is: by Y type TiOPc, polyvinyl butyral resin, solvent by 1:(0.5-1.5): the mass ratio of (200-300) is uniformly dispersed by ball milling and is mixed with;
3. charge transport materials is sprayed, the compound method of charge transport materials after the abundant drying of charge generating layer: styryl triarylamine, polycarbonate resin, solvent are pressed 1:(0.8-1.3): (30-50) mass ratio dissolves formulated.
During spraying, the rotating speed of large format organic light guide drum controls at 200-300 rev/min, and spray gun moves back and forth speeds control in 20-40mm/ second, and spray gun is 10-20cm with the distance of drum base.
The organic light guide drum that the preparation method of above-mentioned large format organic light guide drum prepares.
Embodiment 1: 1. precoated shet coating and spraying: be dissolved in the mixed solvent of 400ml normal butyl alcohol and 600ml methyl alcohol by 25g nylon resin GM-8000, make spray coating liquor, on drum base, spraying forms precoated shet.Organic light guide drum is toasted 10 minutes in the drying box of 100 DEG C.2. charge generating layer coating and spraying: 5g charge generating material Y-TiOPc, 5g polyvinyl butyral resin, 100ml cyclohexanone, 1500ml butanone are mixed with by ball milling dispersion and uniformly spray liquid, spraying forms charge generating layer on drum base.Organic light guide drum is toasted 10 minutes in the drying box of 100 DEG C.3. charge transport layer coating and spraying: 20g styryl triarylamine, 20g polycarbonate resin PCZ-300,100ml cyclohexanone, 900ml toluene are mixed with spray coating liquor, on drum base, spraying forms charge transport layer.Organic light guide drum is toasted 90 minutes in the drying box of 100 DEG C, obtains large format organic light guide drum.
In above step, during spraying, drum base speed setting is at 200 revs/min, and spray gun moves back and forth Speed Setting in 30mm/ second.
Embodiment 2: during except spraying, drum base speed setting is at 300 revs/min, and spray gun moves back and forth Speed Setting outside 20mm/ second, all the other formulas and step all identical with embodiment 1.
Embodiment 3: charge generating material Y-TiOPc is changed into except α-TiOPc except in step 2. charge generating layer coating, all the other all with embodiment one.
Embodiment 4: except in step 3. charge transport layer coating, charge transport materials styryl triarylamine being changed into except 16g by 20g, all the other all with embodiment one.
The photoelectric properties parameter list of large format organic light guide drum prepared by embodiment of the present invention 1-4 is as follows:
Above-described embodiment is only for illustration of technological thought of the present invention and feature, its object is to enable those skilled in the art understand content of the present invention and implement according to this, only can not limit the scope of the claims of the present invention with the present embodiment, namely the equal change done of all disclosed spirit or modification, still drop in the scope of the claims of the present invention.
Claims (3)
1. a preparation method for large format organic light guide drum, is characterized in that, adopts low pressure atomizing membrane formation process, comprises the following steps:
1. on large format organic light guide drum drum base, spray precoated shet coating, the compound method of precoated shet coating is: nylon resin and solvent are formed by the mass ratio dissolving of 1:25-50;
2. after the abundant drying of precoated shet, spray electric charge generation coating, the preparing process of electric charge generation coating is: by Y type TiOPc, polyvinyl butyral resin, solvent by 1:(0.5-1.5): the mass ratio of (200-300) is uniformly dispersed by ball milling and is mixed with;
3. charge transport materials is sprayed, the compound method of charge transport materials after the abundant drying of charge generating layer: styryl triarylamine, polycarbonate resin, solvent are pressed 1:(0.8-1.3): (30-50) mass ratio dissolves formulated.
2. the preparation method of large format organic light guide drum according to claim 1, it is characterized in that, during spraying, the rotating speed of large format organic light guide drum controls at 200-300 rev/min, and spray gun moves back and forth speeds control in 20-40mm/ second, and spray gun is 10-20cm with the distance of drum base.
3. the organic light guide drum for preparing of the preparation method of large format organic light guide drum as claimed in claim 1.
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| CN201510193716.2A CN104749907A (en) | 2015-04-22 | 2015-04-22 | Preparation method for large-format organic photoconductive drum and organic photoconductive drum prepared with preparation method |
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| CN201510193716.2A CN104749907A (en) | 2015-04-22 | 2015-04-22 | Preparation method for large-format organic photoconductive drum and organic photoconductive drum prepared with preparation method |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030148199A1 (en) * | 2001-12-04 | 2003-08-07 | Sharp Kabushiki Kaisha | Electrophotographic photoreceptor and production method thereof |
| JP2005315963A (en) * | 2004-04-27 | 2005-11-10 | Ricoh Co Ltd | Spray coating apparatus for electrophotographic photoreceptor and method for manufacturing electrophotographic photoreceptor |
| JP2006227179A (en) * | 2005-02-16 | 2006-08-31 | Ricoh Co Ltd | Spray coater for electrophotographic photoreceptor and method for manufacturing electrophotographic photoreceptor |
| JP2008070809A (en) * | 2006-09-15 | 2008-03-27 | Ricoh Co Ltd | Spray coating apparatus for parts of electrophotographic apparatus, and method of manufacturing electrophotographic photoreceptor |
| CN104437925A (en) * | 2013-09-17 | 2015-03-25 | 株式会社理光 | Spray gun for coating, spray coating device, and method for producing electrophotographic photoconductor |
-
2015
- 2015-04-22 CN CN201510193716.2A patent/CN104749907A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030148199A1 (en) * | 2001-12-04 | 2003-08-07 | Sharp Kabushiki Kaisha | Electrophotographic photoreceptor and production method thereof |
| JP2005315963A (en) * | 2004-04-27 | 2005-11-10 | Ricoh Co Ltd | Spray coating apparatus for electrophotographic photoreceptor and method for manufacturing electrophotographic photoreceptor |
| JP2006227179A (en) * | 2005-02-16 | 2006-08-31 | Ricoh Co Ltd | Spray coater for electrophotographic photoreceptor and method for manufacturing electrophotographic photoreceptor |
| JP2008070809A (en) * | 2006-09-15 | 2008-03-27 | Ricoh Co Ltd | Spray coating apparatus for parts of electrophotographic apparatus, and method of manufacturing electrophotographic photoreceptor |
| CN104437925A (en) * | 2013-09-17 | 2015-03-25 | 株式会社理光 | Spray gun for coating, spray coating device, and method for producing electrophotographic photoconductor |
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Application publication date: 20150701 |
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