JPS6136226B2 - - Google Patents
Info
- Publication number
- JPS6136226B2 JPS6136226B2 JP3123380A JP3123380A JPS6136226B2 JP S6136226 B2 JPS6136226 B2 JP S6136226B2 JP 3123380 A JP3123380 A JP 3123380A JP 3123380 A JP3123380 A JP 3123380A JP S6136226 B2 JPS6136226 B2 JP S6136226B2
- Authority
- JP
- Japan
- Prior art keywords
- parts
- photoconductive layer
- photoconductive
- polytetrafluoroethylene powder
- powder
- Prior art date
- Legal status (The legal status 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 status listed.)
- Expired
Links
- -1 polytetrafluoroethylene Polymers 0.000 claims description 16
- 239000000843 powder Substances 0.000 claims description 15
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 14
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 14
- 108091008695 photoreceptors Proteins 0.000 claims description 11
- 239000006185 dispersion Substances 0.000 claims description 9
- 229920005989 resin Polymers 0.000 claims description 8
- 239000011347 resin Substances 0.000 claims description 8
- 239000011230 binding agent Substances 0.000 claims description 7
- 229920002037 poly(vinyl butyral) polymer Polymers 0.000 claims description 5
- 239000000126 substance Substances 0.000 claims description 3
- 238000000034 method Methods 0.000 description 7
- 238000004140 cleaning Methods 0.000 description 6
- ZWEHNKRNPOVVGH-UHFFFAOYSA-N 2-Butanone Chemical compound CCC(C)=O ZWEHNKRNPOVVGH-UHFFFAOYSA-N 0.000 description 3
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- ZTQSAGDEMFDKMZ-UHFFFAOYSA-N Butyraldehyde Chemical compound CCCC=O ZTQSAGDEMFDKMZ-UHFFFAOYSA-N 0.000 description 2
- MWPLVEDNUUSJAV-UHFFFAOYSA-N anthracene Chemical compound C1=CC=CC2=CC3=CC=CC=C3C=C21 MWPLVEDNUUSJAV-UHFFFAOYSA-N 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000003973 paint Substances 0.000 description 2
- IICCLYANAQEHCI-UHFFFAOYSA-N 4,5,6,7-tetrachloro-3',6'-dihydroxy-2',4',5',7'-tetraiodospiro[2-benzofuran-3,9'-xanthene]-1-one Chemical compound O1C(=O)C(C(=C(Cl)C(Cl)=C2Cl)Cl)=C2C21C1=CC(I)=C(O)C(I)=C1OC1=C(I)C(O)=C(I)C=C21 IICCLYANAQEHCI-UHFFFAOYSA-N 0.000 description 1
- 239000004925 Acrylic resin Substances 0.000 description 1
- 229920000178 Acrylic resin Polymers 0.000 description 1
- 229910018110 Se—Te Inorganic materials 0.000 description 1
- 229910010413 TiO 2 Inorganic materials 0.000 description 1
- 229920006311 Urethane elastomer Polymers 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- UHYPYGJEEGLRJD-UHFFFAOYSA-N cadmium(2+);selenium(2-) Chemical compound [Se-2].[Cd+2] UHYPYGJEEGLRJD-UHFFFAOYSA-N 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- IEQIEDJGQAUEQZ-UHFFFAOYSA-N phthalocyanine Chemical compound N1C(N=C2C3=CC=CC=C3C(N=C3C4=CC=CC=C4C(=N4)N3)=N2)=C(C=CC=C2)C2=C1N=C1C2=CC=CC=C2C4=N1 IEQIEDJGQAUEQZ-UHFFFAOYSA-N 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 229920002689 polyvinyl acetate Polymers 0.000 description 1
- 239000011118 polyvinyl acetate Substances 0.000 description 1
- 229930187593 rose bengal Natural products 0.000 description 1
- 229940081623 rose bengal Drugs 0.000 description 1
- STRXNPAVPKGJQR-UHFFFAOYSA-N rose bengal A Natural products O1C(=O)C(C(=CC=C2Cl)Cl)=C2C21C1=CC(I)=C(O)C(I)=C1OC1=C(I)C(O)=C(I)C=C21 STRXNPAVPKGJQR-UHFFFAOYSA-N 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 238000004544 sputter deposition Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- HGBOYTHUEUWSSQ-UHFFFAOYSA-N valeric aldehyde Natural products CCCCC=O HGBOYTHUEUWSSQ-UHFFFAOYSA-N 0.000 description 1
- 238000007740 vapor deposition Methods 0.000 description 1
- 239000011787 zinc oxide Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G5/00—Recording members for original recording by exposure, e.g. to light, to heat, to electrons; Manufacture thereof; Selection of materials therefor
- G03G5/02—Charge-receiving layers
- G03G5/04—Photoconductive layers; Charge-generation layers or charge-transporting layers; Additives therefor; Binders therefor
- G03G5/05—Organic bonding materials; Methods for coating a substrate with a photoconductive layer; Inert supplements for use in photoconductive layers
- G03G5/0503—Inert supplements
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Photoreceptors In Electrophotography (AREA)
Description
【発明の詳細な説明】
本発明は電子写真感光体、特に表面潤滑性の優
れた電子写真感光体に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an electrophotographic photoreceptor, and particularly to an electrophotographic photoreceptor with excellent surface lubricity.
電子写真感光体は支持体と光導電層からなる。
光導電層は通常、Ｓ、Se、PbO、Se−Te、Se−
Te−As、ZnO、CdS、CdSe、TiO2、PVK、アン
トラセン、フタロシアニンなどの光導電物質を、
単独もしくは結着剤と共に、貼合、塗布、蒸着、
スパツタリング等によつて形成される。光導電物
質が粉体である場合、結着剤と共に塗布によつて
光導電層を形成することが最も容易である。 An electrophotographic photoreceptor consists of a support and a photoconductive layer.
The photoconductive layer is typically S, Se, PbO, Se-Te, Se-
Photoconductive materials such as Te-As, ZnO, CdS, CdSe, TiO 2 , PVK, anthracene, and phthalocyanine,
Alone or with a binder, lamination, coating, vapor deposition,
It is formed by sputtering or the like. When the photoconductive substance is a powder, it is easiest to form the photoconductive layer by coating it together with a binder.
一方、電子写真感光体には、帯電、露光、現
像、転写、クリーニングなどの電子写真プロセス
が加えられる。クリーニングには種々の方式があ
るが、ゴムブレードによる方法は装置が簡易であ
り、広く用いられている。しかしながら、ブレー
ドクリーニングを行うためには、電子写真感光体
の表面は表面性が良好で、滑性に富むものでなく
てはならない。 On the other hand, electrophotographic photoreceptors undergo electrophotographic processes such as charging, exposure, development, transfer, and cleaning. There are various cleaning methods, but the method using a rubber blade has a simple device and is widely used. However, in order to perform blade cleaning, the surface of the electrophotographic photoreceptor must have good surface properties and be highly slippery.
一方、塗布によつて形成した光導電層は一般に
多孔質となり滑性には乏しいことが多い。そのた
めブレードによるクリーニングは、はなはだ困難
であつた。 On the other hand, photoconductive layers formed by coating are generally porous and often lack lubricity. Therefore, cleaning with a blade has been extremely difficult.
而して本発明は、滑性の優れた光導電層を有す
る電子写真感光体を提供することを主たる目的と
する。 The main object of the present invention is to provide an electrophotographic photoreceptor having a photoconductive layer with excellent lubricity.
本発明は光導電層にポリテトラフルオロエチレ
ン粉体およびポリテトラフルオロエチレン粉体の
分散助剤としてポリビニルブチラールを分散させ
たことを特徴とする電子写真感光体である。ポリ
テトラフルオロエチレンは最も摩擦が少なく、滑
性に優れた材料として知られている。この粉体を
光導電層中に分散させることにより、滑性に優れ
た表面を得ることができた。 The present invention is an electrophotographic photoreceptor characterized in that a photoconductive layer contains polytetrafluoroethylene powder and polyvinyl butyral as a dispersion aid for the polytetrafluoroethylene powder dispersed therein. Polytetrafluoroethylene is known as a material with the lowest friction and excellent slipperiness. By dispersing this powder in the photoconductive layer, it was possible to obtain a surface with excellent slipperiness.
ポリテトラフルオロエチレン粉体を光導電層中
に分散する方法としては直接、結着剤樹脂中に分
散することもできるが、分散をより確実にするた
め、分散助剤を用いる方が好ましい。分散助剤は
ポリテトラフロロエチレン粉体の分散を容易にせ
しめ、沈降を起こりにくくするものでポリビニル
ブチラールが用いられる。 As a method for dispersing the polytetrafluoroethylene powder in the photoconductive layer, it is possible to directly disperse it in the binder resin, but in order to ensure more reliable dispersion, it is preferable to use a dispersion aid. The dispersion aid is one that facilitates the dispersion of the polytetrafluoroethylene powder and makes it difficult to cause sedimentation, and polyvinyl butyral is used.
ポリビニルブチラール樹脂は、ポリ酢酸ビニル
樹脂をケン化し、さらにブチルアルデヒドを縮合
させて得られる樹脂である。 Polyvinyl butyral resin is a resin obtained by saponifying polyvinyl acetate resin and further condensing it with butyraldehyde.
以下、本発明を更に具体的に説明する。 The present invention will be explained in more detail below.
本発明による光導電層は光導電粉体とポリテト
ラフルオロエチレン粉体とを結着剤中に分散させ
るものである。その方法としては、同時に分散せ
しめることも可能であるが、ポリテトラフルオロ
エチレン粉体の分散の方がむずかしいので、好ま
しくは、まずポリテトラフルオロエチレン粉体を
必要に応じて分散助剤を用いて結着剤中に分散せ
しめ、次いで光導電体を分散する。それぞれの配
合比は光導電体を100部（重量部、以下同様）と
すれば結着剤樹脂５〜50部、ポリテトラフルオロ
エチレン粉体１〜50部、分散助剤0.1〜５部の範
囲で設定されるのが好適である。分散方法は、ボ
ールミル、ロールミル、ホモジナイザー、アトラ
イター、レツドテビル、超音波などの方法がとら
れる。 The photoconductive layer according to the present invention comprises a photoconductive powder and a polytetrafluoroethylene powder dispersed in a binder. Although it is possible to disperse the polytetrafluoroethylene powder at the same time, it is more difficult to disperse the polytetrafluoroethylene powder, so it is preferable to first disperse the polytetrafluoroethylene powder using a dispersion aid if necessary. Disperse in the binder and then disperse the photoconductor. The respective compounding ratios are 5 to 50 parts of the binder resin, 1 to 50 parts of the polytetrafluoroethylene powder, and 0.1 to 5 parts of the dispersion aid, assuming that the photoconductor is 100 parts (by weight, the same applies hereinafter). It is preferable to set . As the dispersion method, methods such as a ball mill, a roll mill, a homogenizer, an attritor, a retardator, and an ultrasonic wave are used.
このように分散された光導電性塗料は、紙、樹
脂フイルム、金属フイルム、金属支持体などの基
材上に、塗布され、溶剤を完全い蒸発させて光導
電層となる。光導電層の厚さは一般に５〜50μ程
度である。 The photoconductive paint thus dispersed is applied onto a substrate such as paper, resin film, metal film, metal support, etc., and the solvent is completely evaporated to form a photoconductive layer. The thickness of the photoconductive layer is generally about 5 to 50 microns.
実施例
ポリテトラフルオロエチレン粉体10部、アクリ
ル樹脂（商品名：アクリデイツクA190、大日本
インキ製）15部、ポリビニルブチラール樹脂（商
品名エスレツクBM−１、積水化学製）0.3部、ロ
ーズベンガル色素0.3部、メタノール５部、メチ
ルエチルケトン20部をボールミルにて２日間分散
した。次いでこれに酸化亜鉛粉体80部、トルエン
50部を加え、20μギヤツプのロールミル装置に３
回通して分散させた。Examples 10 parts of polytetrafluoroethylene powder, 15 parts of acrylic resin (trade name: Acrydik A190, manufactured by Dainippon Ink), 0.3 parts of polyvinyl butyral resin (trade name: Eslec BM-1, manufactured by Sekisui Chemical), 0.3 parts of rose bengal pigment 1 part, 5 parts of methanol, and 20 parts of methyl ethyl ketone were dispersed in a ball mill for 2 days. Next, 80 parts of zinc oxide powder and toluene were added to this.
Add 50 parts and add 3 parts to a roll mill device with a 20μ gap.
It was circulated and dispersed.
この光導電塗料を浸漬法にて80φ×300mmのAl
シリンダーに塗布し、80℃10分間で乾燥し、25μ
厚の光導電層をもうけた。 This photoconductive paint was applied to an 80φ x 300mm aluminum plate using the dipping method.
Apply to cylinder, dry at 80℃ for 10 minutes, 25μ
A thick photoconductive layer was formed.
この感光体に対し、DC帯電、画像露光、乾
式ナートによる現像、普通紙への転写、ウレタン
ゴムブレードによるクリーニングから成るプロセ
スを有する電子写真装置を用いて耐久性を調べた
ところ、コピー2000枚においてもクリーニング性
は良好で、正常なる画像が得られた。一方、ポリ
テトラフルオロエチレンを分散させないで感光体
を作成した場合には、コピー100枚程度でクリー
ニング不良が発生し、画像にかぶりを生じた。 The durability of this photoreceptor was investigated using an electrophotographic device that has a process consisting of DC charging, image exposure, development with a dry toner, transfer to plain paper, and cleaning with a urethane rubber blade. Cleanability was also good, and normal images were obtained. On the other hand, when a photoreceptor was prepared without dispersing polytetrafluoroethylene, cleaning failure occurred after about 100 copies, resulting in fogging of the images.
Claims (1)
を有する電子写真感光体において、光導電層中に
ポリテトラフルオロエチレン粉体およびポリテト
ラフルオロエチレン粉体の分散助剤として、ポリ
ビニルブチラールを有することを特徴とする電子
写真感光体。1. In an electrophotographic photoreceptor having a photoconductive layer consisting of a photoconductive substance and a binder resin, the photoconductive layer contains polytetrafluoroethylene powder and polyvinyl butyral as a dispersion aid for the polytetrafluoroethylene powder. An electrophotographic photoreceptor featuring:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3123380A JPS56126838A (en) | 1980-03-12 | 1980-03-12 | Electrophotographic receptor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3123380A JPS56126838A (en) | 1980-03-12 | 1980-03-12 | Electrophotographic receptor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS56126838A JPS56126838A (en) | 1981-10-05 |
| JPS6136226B2 true JPS6136226B2 (en) | 1986-08-16 |
Family
ID=12325684
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3123380A Granted JPS56126838A (en) | 1980-03-12 | 1980-03-12 | Electrophotographic receptor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS56126838A (en) |
Families Citing this family (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60130743A (en) * | 1983-12-20 | 1985-07-12 | Asahi Glass Co Ltd | Electrophotographic sensitive body |
| JPS61123850A (en) * | 1984-10-31 | 1986-06-11 | Canon Inc | Electrophotographic sensitive body and image forming method |
| JPS6330850A (en) * | 1986-07-24 | 1988-02-09 | Canon Inc | Electrophotographic sensitive body |
| US4784928A (en) * | 1986-09-02 | 1988-11-15 | Eastman Kodak Company | Reusable electrophotographic element |
| JPS6423259A (en) * | 1987-07-20 | 1989-01-25 | Canon Kk | Electrophotographic sensitive body |
| JPS6435448A (en) * | 1987-07-31 | 1989-02-06 | Canon Kk | Electrophotographic sensitive body |
| JP2692246B2 (en) * | 1989-03-15 | 1997-12-17 | 富士ゼロックス株式会社 | Electrophotographic photoreceptor |
| JPH05165244A (en) * | 1991-12-13 | 1993-07-02 | Ricoh Co Ltd | Electrophotographic sensitive body |
| JPH06332217A (en) * | 1993-05-26 | 1994-12-02 | Canon Inc | Electrophotographic sensitive body and electrophotographic device using the body |
| EP0690352B1 (en) * | 1994-06-22 | 2002-03-27 | Canon Kabushiki Kaisha | Electrophotographic apparatus |
| JP6033939B1 (en) * | 2015-10-01 | 2016-11-30 | 三菱鉛筆株式会社 | Non-aqueous dispersion of polytetrafluoroethylene micropowder |
| TWI725054B (en) * | 2015-10-01 | 2021-04-21 | 日商三菱鉛筆股份有限公司 | Non-aqueous dispersion of fluorine resin, thermosetting resin composition of fluorine resin and its cured product, and adhesive composition for circuit board |
| JP6165307B2 (en) * | 2015-10-01 | 2017-07-19 | 三菱鉛筆株式会社 | Non-aqueous dispersion of fluororesin |
| TWI794172B (en) * | 2016-05-25 | 2023-03-01 | 日商三菱鉛筆股份有限公司 | Non-aqueous dispersion of fluorine-based resin, thermosetting resin composition of fluorine-containing resin using the same and its cured product, polyimide precursor solution composition |
| JP6764263B2 (en) * | 2016-06-14 | 2020-09-30 | 三菱鉛筆株式会社 | A non-aqueous dispersion of a fluorine-based resin, a thermosetting resin composition containing a fluorine-based resin using the same, and a cured product thereof. |
| JP7002832B2 (en) * | 2016-07-06 | 2022-01-20 | 三菱鉛筆株式会社 | Polyimide precursor solution composition, polyimide film using it |
| JP6768366B2 (en) * | 2016-06-14 | 2020-10-14 | 三菱鉛筆株式会社 | Non-aqueous dispersion of fluororesin, thermosetting resin composition containing fluororesin using it, and its cured product |
| TWI738778B (en) * | 2016-05-25 | 2021-09-11 | 日商三菱鉛筆股份有限公司 | Non-aqueous dispersion of fluorine-based resin, thermosetting resin composition and hardened product of fluorine-containing resin using it, polyimide precursor solution composition |
| JP6921651B2 (en) * | 2017-06-29 | 2021-08-18 | キヤノン株式会社 | Electrophotographic photosensitive members, process cartridges and electrophotographic equipment |
-
1980
- 1980-03-12 JP JP3123380A patent/JPS56126838A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS56126838A (en) | 1981-10-05 |
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