WO2000002093A1 - Photorecepteur organique electrophotographique a longue duree d'impression - Google Patents

Photorecepteur organique electrophotographique a longue duree d'impression Download PDF

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Publication number
WO2000002093A1
WO2000002093A1 PCT/JP1999/003446 JP9903446W WO0002093A1 WO 2000002093 A1 WO2000002093 A1 WO 2000002093A1 JP 9903446 W JP9903446 W JP 9903446W WO 0002093 A1 WO0002093 A1 WO 0002093A1
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WO
WIPO (PCT)
Prior art keywords
organic
organic photoreceptor
photoreceptor
layer
charge
Prior art date
Application number
PCT/JP1999/003446
Other languages
English (en)
Japanese (ja)
Inventor
Minoru Miyagawa
Original Assignee
Miyagawa, Keiko
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Miyagawa, Keiko filed Critical Miyagawa, Keiko
Publication of WO2000002093A1 publication Critical patent/WO2000002093A1/fr

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Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G5/00—Recording members for original recording by exposure, e.g. to light, to heat, to electrons; Manufacture thereof; Selection of materials therefor
    • G03G5/14—Inert intermediate or cover layers for charge-receiving layers
    • G03G5/147—Cover layers
    • G03G5/14704—Cover layers comprising inorganic material
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G5/00—Recording members for original recording by exposure, e.g. to light, to heat, to electrons; Manufacture thereof; Selection of materials therefor
    • G03G5/02—Charge-receiving layers
    • G03G5/04—Photoconductive layers; Charge-generation layers or charge-transporting layers; Additives therefor; Binders therefor
    • G03G5/043—Photoconductive layers characterised by having two or more layers or characterised by their composite structure
    • G03G5/0433—Photoconductive layers characterised by having two or more layers or characterised by their composite structure all layers being inorganic

Definitions

  • the present invention relates to a high printing durability electrophotographic S photoconductor containing an organic photoconductive substance, and a method for producing the same.
  • the electrophotographic photoreceptor should have the following characteristics: banding characteristics such as charge receptivity in dark places and potential holding performance; light attenuation and residual potential in the surface level during exposure. It is extremely important to secure the printing durability as well as the photosensitivity characteristics of these and the stability of these electrophotographic characteristics during repeated use.
  • banding characteristics such as charge receptivity in dark places and potential holding performance
  • a method of laminating a surface protection j on the surface of the phosphor and a method of changing the physicochemical properties by modifying the surface of the outermost surface have been used.
  • the former include JP-A-2-4272 in which a surface protective layer formed by applying a coating material in which a metal oxide powder is dispersed in a binder resin is formed on the surface of a photoreceptor, a metal alkoxy compound, a modified silicone resin, an organosol, silicon, and the like.
  • JP-A-2-4-2733 in which a surface protection eyebrow is formed by directly applying a compound, polybutanocarbosilane to the surface.
  • the latter is a patent in which an oligomer having a perfluoroalkyl group is converted to a charge transport layer of a separation type organic photoreceptor, in which a charge generation layer and a charge transport layer are sequentially stacked on a conductive support.
  • a charge generation layer and a charge transport layer are sequentially stacked on a conductive support.
  • inorganic polysilazane is calcined in the air at a low temperature and then subjected to a treatment that promotes oxidation or hydrolysis in a state where conversion to silicide is insufficient, it can be completely converted to silica at room temperature in less than ⁇ 20.
  • the film obtained in this way has a slightly reduced insulating property, but the other physical properties are almost the same as those of S-glass, so that most organic photoconductive materials should be used in combination. Became possible.
  • the low-temperature-curable polysilazane is soluble in organic solvents such as aromatics and esters, the organic photoconductive substance can be dissolved or dispersed at the same time, and can be used in the same manner as ordinary organic coating agents.
  • the low-temperature-curable polysilazane is applied to the surface of an organic photoreceptor formed by laminating a light-sensitive layer made of an organic photo-substance on an electrically conductive support, followed by low-temperature baking.
  • An electrophotographic organic photoreceptor characterized by being decomposed.
  • the present invention provides a functional separation type organic photoreceptor in which a charge generation layer and a load transport layer are sequentially laminated on a sexual support, wherein at least the charge transport layer and the low-temperature curing type polysilazane are used in an organic solvent.
  • An electrophotographic organic photoreceptor characterized by applying a charge transport coating that has been dissolved and formed into a coating, followed by baking at a low temperature, oxidation or hydrolysis.
  • the present invention provides a functionally separated organic photoreceptor in which a can transporting layer and a charge generating layer are sequentially stacked on a conductive support. At least, a charge generation material and the above-mentioned low-temperature-curable polysilazane are dissolved or dispersed in an organic solvent to form a coating material, and then a low-temperature baking, oxidation, or hydrolysis treatment is applied. It is an electronic photoreceptor.
  • the present invention In a single-layer organic photoreceptor in which a photosensitive layer made of an organic photoconductive material is laminated on a tortoise-like support, the photosensitive debris dissolves or separates at least a charge transporting substance, a charge generating substance, and the low-temperature-curable polysilazane in an organic solvent.
  • An electrophotographic organic photoreceptor characterized by applying a light-expanding paint made into a paint by a low-temperature baking, oxidation or hydrolysis treatment.
  • FIG. 1 is a sectional view of the phosphor surface according to the first embodiment.
  • a conductive support on the surface of an aluminum tube with a diameter of 30 mm, * metal phthalocyanine (Dainippon Ink, First Gen Blue) triple presentation part, polyvinyl butyral resin (Sekisui Chemical, BMS) Hexanone A 350-foot portion is added to form a dispersed paint and the charge generation layer is obtained by dip coating so that the thickness becomes thick.
  • a charge transport material consisting of a butadiene derivative (ananan T-405) and a hydrazone derivative (ananan CT0191) in a ratio of 2/8, and bisphenol Z-type polycarbonate resin (Mitsubishi Gas Chemical) Z-200)
  • tetrahydrofuran tetrahydrofuran
  • S part dissolve it into a paint
  • dip coating method to the charge transport eyebrows so as to have a thickness of 24 ⁇ m to obtain a functionally separated organic photoreceptor.
  • a low-temperature-curable polysilazane diluted L 120, Si-rinse 20% by weight
  • Fig. 2 is a cross-sectional view of the surface of the phosphor in Example 2. The same process is performed to obtain the charge generation layer in Example 1.
  • FIG. 3 is a cross-sectional view of the lower surface of the photoreceptor in which the surface protection layer is not formed in Example 1.
  • FIG. Figure 4 shows the electrically conductive support used in Example 1, a charge transport layer on the conductive support under the same conditions as in Example 1, and a functionally separated organic photoreceptor that was scrapped in the order of the load generation calendar. Get the body.
  • FIG. 3 is a cross-sectional view of the surface of the photoconductor on which a surface protection coating is formed under the same conditions as in Example 1. This was designated as Example 3.
  • FIG. 5 is a sectional view of the photoreceptor surface according to the fourth embodiment.
  • Example 4 Metal-free phthalocyanine derivative 3 parts by weight.
  • Polyvinyl butyral resin 0.5 parts: S part, 2.0 parts by weight of low-temperature curing type polysilazane are dissolved and the dip coating method is applied to dip coating so that the thickness becomes 0.5.
  • Example 4 a functionally separated organic photoreceptor. This was designated as Example 4.
  • FIG. 6 is a sectional view of the photoconductor surface of Comparative Example 2. Comparative Example 2 in which the surface protective layer was not formed in Example 3 was used.
  • FIG. 7 is a cutaway view of the photoreceptor surface of the fifth embodiment.
  • Example 5 To the conductive support used in Example 1, 1.5 parts by weight of the above-mentioned non-metallic phthalocyanine, 5 parts by weight of a hydrazone derivative, 4.5 parts by weight of bisphenol Z-type polycarbonate resin, and 2 parts by weight of low-temperature curing type polysilazane were added tetrahydrofuran. A mixed organic solvent having a weight ratio of xylene and xylene of 3/1 is added to form a dissolving paint, and the light-emitting layer is formed by a dip spread method so as to have a thickness of 28 im to obtain a single-brow type organic light-emitting material. This was designated as Example 5.
  • FIG. 8 is a sectional view of the phosphor surface in Comparative Example 3.
  • Comparative Example 3 is the same as Example 5 except that the low-temperature-curable polysilazane is not added, except that bisphenol Z-type polycarbonate resin is 5 parts by weight.
  • Table 1 shows the evaluation results. A wear test and a printing durability test were performed in each of the examples and comparative examples. Industrial applicability
  • the photoreceptor with high printing durability according to the present invention When the photoreceptor with high printing durability according to the present invention is mounted on a child copying machine application device and used, the printing durability is secured and at the same time the reliability of the device is improved. It does not require replacement of the photosensitive drum until the end of the product life. The possibility of goods is suggested.
  • the effects of the present invention have a wide range of positive effects not only on the industrial side, but also on the environmental aspects such as reduction of slag production waste and resource saving, as well as technology such as high-speed application equipment and simplified equipment design. Will bring.

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  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Photoreceptors In Electrophotography (AREA)

Abstract

Selon l'invention, on brûle dans l'air, à basse température, un polysilazane minéral (perhydropolysilazane), lequel en brûlant dans l'air à une température comprise entre 400 et 1000 °C produit un film de silice dense très pure (SiO2) qui possède d'excellentes propriétés d'isolation électrique, de dureté, de résistance à la corrosion chimique et de barrière aux gaz. On soumet le film brûlé n'ayant pas subi une conversion suffisante en silice, à un traitement destiné à accélérer l'oxydation ou l'hydrolyse, à une température comprise entre la température ambiante et 120 °C, ce qui permet de convertir complètement en silice le matériau de départ. Le film ainsi obtenu possède une dureté approximativement égale à celle du quartz. En utilisant cette silice en tant que couche protectrice des surfaces d'un photorécepteur organique, ou en l'incorporant dans une couche photosensible, on obtient un photorécepteur organique électrophotographique possédant une durée d'impression extrêmement longue.
PCT/JP1999/003446 1998-07-03 1999-06-28 Photorecepteur organique electrophotographique a longue duree d'impression WO2000002093A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP10/223526 1998-07-03
JP22352698 1998-07-03

Publications (1)

Publication Number Publication Date
WO2000002093A1 true WO2000002093A1 (fr) 2000-01-13

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Family Applications (1)

Application Number Title Priority Date Filing Date
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Country Status (1)

Country Link
WO (1) WO2000002093A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6295099B1 (en) * 1992-03-12 2001-09-25 Canon Kabushiki Kaisha Information recording and reproducing apparatus
JP2014006350A (ja) * 2012-06-22 2014-01-16 Fuji Xerox Co Ltd 電子写真感光体、プロセスカートリッジ、画像形成装置、及び電子写真感光体の製造方法

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01163754A (ja) * 1987-09-24 1989-06-28 Fuji Electric Co Ltd 電子写真用感光体
JPH06202353A (ja) * 1992-12-28 1994-07-22 Shindengen Electric Mfg Co Ltd 電子写真用感光体
JPH07292321A (ja) * 1994-04-28 1995-11-07 Tonen Corp コーティング用組成物
JPH09157528A (ja) * 1995-12-11 1997-06-17 Tonen Corp ポリシラザン組成物、ポリシラザン溶液の調製方法、該組成物を用いたコーティング用組成物及び該コーティング用組成物を用いて得られるセラミックス被膜付プラスチック
JPH11249330A (ja) * 1998-03-06 1999-09-17 Minolta Co Ltd 電子写真感光体

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01163754A (ja) * 1987-09-24 1989-06-28 Fuji Electric Co Ltd 電子写真用感光体
JPH06202353A (ja) * 1992-12-28 1994-07-22 Shindengen Electric Mfg Co Ltd 電子写真用感光体
JPH07292321A (ja) * 1994-04-28 1995-11-07 Tonen Corp コーティング用組成物
JPH09157528A (ja) * 1995-12-11 1997-06-17 Tonen Corp ポリシラザン組成物、ポリシラザン溶液の調製方法、該組成物を用いたコーティング用組成物及び該コーティング用組成物を用いて得られるセラミックス被膜付プラスチック
JPH11249330A (ja) * 1998-03-06 1999-09-17 Minolta Co Ltd 電子写真感光体

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6295099B1 (en) * 1992-03-12 2001-09-25 Canon Kabushiki Kaisha Information recording and reproducing apparatus
JP2014006350A (ja) * 2012-06-22 2014-01-16 Fuji Xerox Co Ltd 電子写真感光体、プロセスカートリッジ、画像形成装置、及び電子写真感光体の製造方法

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