JP2704671B2 - Photoreceptor for organic electrophotography - Google Patents
Photoreceptor for organic electrophotographyInfo
- Publication number
- JP2704671B2 JP2704671B2 JP33078290A JP33078290A JP2704671B2 JP 2704671 B2 JP2704671 B2 JP 2704671B2 JP 33078290 A JP33078290 A JP 33078290A JP 33078290 A JP33078290 A JP 33078290A JP 2704671 B2 JP2704671 B2 JP 2704671B2
- Authority
- JP
- Japan
- Prior art keywords
- protective layer
- layer
- photoreceptor
- organic
- undercoat
- 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 - Fee Related
Links
- 108091008695 photoreceptors Proteins 0.000 title claims description 18
- 239000011241 protective layer Substances 0.000 claims description 50
- 239000010410 layer Substances 0.000 claims description 26
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 claims description 10
- 238000012546 transfer Methods 0.000 claims description 10
- 239000002904 solvent Substances 0.000 claims description 8
- BDAGIHXWWSANSR-UHFFFAOYSA-N methanoic acid Natural products OC=O BDAGIHXWWSANSR-UHFFFAOYSA-N 0.000 claims description 6
- 229920002554 vinyl polymer Polymers 0.000 claims description 6
- OSWFIVFLDKOXQC-UHFFFAOYSA-N 4-(3-methoxyphenyl)aniline Chemical compound COC1=CC=CC(C=2C=CC(N)=CC=2)=C1 OSWFIVFLDKOXQC-UHFFFAOYSA-N 0.000 claims description 3
- 235000019253 formic acid Nutrition 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 2
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 12
- 230000006866 deterioration Effects 0.000 description 10
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 9
- 238000000034 method Methods 0.000 description 9
- 239000000463 material Substances 0.000 description 7
- 239000012535 impurity Substances 0.000 description 5
- HEDRZPFGACZZDS-UHFFFAOYSA-N Chloroform Chemical compound ClC(Cl)Cl HEDRZPFGACZZDS-UHFFFAOYSA-N 0.000 description 4
- 238000009792 diffusion process Methods 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- 239000000428 dust Substances 0.000 description 3
- 239000004925 Acrylic resin Substances 0.000 description 2
- 229920000178 Acrylic resin Polymers 0.000 description 2
- KAKZBPTYRLMSJV-UHFFFAOYSA-N Butadiene Chemical compound C=CC=C KAKZBPTYRLMSJV-UHFFFAOYSA-N 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- 235000001630 Pyrus pyrifolia var culta Nutrition 0.000 description 2
- 240000002609 Pyrus pyrifolia var. culta Species 0.000 description 2
- 239000006087 Silane Coupling Agent Substances 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 229920001577 copolymer Polymers 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000178 monomer Substances 0.000 description 2
- 150000002894 organic compounds Chemical class 0.000 description 2
- 125000005010 perfluoroalkyl group Chemical group 0.000 description 2
- 229910052711 selenium Inorganic materials 0.000 description 2
- 239000011669 selenium Substances 0.000 description 2
- -1 selenium telluride compound Chemical class 0.000 description 2
- WYTZZXDRDKSJID-UHFFFAOYSA-N (3-aminopropyl)triethoxysilane Chemical compound CCO[Si](OCC)(OCC)CCCN WYTZZXDRDKSJID-UHFFFAOYSA-N 0.000 description 1
- 229920000298 Cellophane Polymers 0.000 description 1
- PXGOKWXKJXAPGV-UHFFFAOYSA-N Fluorine Chemical compound FF PXGOKWXKJXAPGV-UHFFFAOYSA-N 0.000 description 1
- BUGBHKTXTAQXES-UHFFFAOYSA-N Selenium Chemical compound [Se] BUGBHKTXTAQXES-UHFFFAOYSA-N 0.000 description 1
- BSYQEPMUPCBSBK-UHFFFAOYSA-N [F].[SiH4] Chemical compound [F].[SiH4] BSYQEPMUPCBSBK-UHFFFAOYSA-N 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 125000003158 alcohol group Chemical group 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- UUAGAQFQZIEFAH-UHFFFAOYSA-N chlorotrifluoroethylene Chemical group FC(F)=C(F)Cl UUAGAQFQZIEFAH-UHFFFAOYSA-N 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 150000002222 fluorine compounds Chemical class 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 150000007857 hydrazones Chemical class 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- QWPPOHNGKGFGJK-UHFFFAOYSA-N hypochlorous acid Chemical compound ClO QWPPOHNGKGFGJK-UHFFFAOYSA-N 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000001590 oxidative effect Effects 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
- 229920000515 polycarbonate Polymers 0.000 description 1
- 239000004417 polycarbonate Substances 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- DQZNLOXENNXVAD-UHFFFAOYSA-N trimethoxy-[2-(7-oxabicyclo[4.1.0]heptan-4-yl)ethyl]silane Chemical compound C1C(CC[Si](OC)(OC)OC)CCC2OC21 DQZNLOXENNXVAD-UHFFFAOYSA-N 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Photoreceptors In Electrophotography (AREA)
Description
【発明の詳細な説明】 （産業上の利用分野） 本発明は有機電子写真用感光体、特に耐久性，耐オゾ
ン性，良好な離型性など耐環境性にすぐれた有機電子写
真用感光体に関するものである。DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention relates to a photoreceptor for organic electrophotography, and more particularly, to a photoreceptor for organic electrophotography having excellent environmental resistance such as durability, ozone resistance, and good releasability. It is about.
（従来技術とその問題点） 電子写真用感光体として従来のセレン、セレンテルル
化合物を用いたものに代えて、例えば第１図のように導
電性支持体（１）の表面に、フタロシアニン系材による
電荷発生層（２）と、ブタジエン，ヒドラゾン系材によ
る電荷移動層（３）を形成したものが多く使用されるよ
うになりつつある。(Prior art and its problems) Instead of a conventional electrophotographic photoreceptor using selenium or a selenium telluride compound, for example, as shown in FIG. 1, a surface of a conductive support (1) is coated with a phthalocyanine-based material. A charge generating layer (2) and a charge transfer layer (3) formed of a butadiene / hydrazone-based material are increasingly used.
この感光体は電荷移動層（３）が電荷発生層（２）の
表面を厚く覆っているため、一般に感度低下に伴う黒す
じや白すじの発生は起きにくい。In this photoreceptor, since the charge transfer layer (3) covers the surface of the charge generation layer (2) thickly, generally, black streaks and white streaks due to a decrease in sensitivity hardly occur.
しかしその反面硬度が低く耐摩耗性に劣るため寿命が
短く、しかも繰り返し使用による膜厚の減少により、帯
電性の劣化を生ずる問題がある。特に近年のように感光
体を用いたプリンタや複写材などの高速可動化の進展に
よる感光体表面の擦過用クリーニング機構の強力化は光
導電層の膜厚の一層の減少を招く。従って更に大きな帯
電性の劣化を生じて画像品質の低下を招く。However, on the other hand, there is a problem that the service life is short due to low hardness and poor abrasion resistance, and the charging property is deteriorated due to a decrease in the film thickness due to repeated use. Particularly, in recent years, the strengthening of the cleaning mechanism for rubbing the photoconductor surface due to the progress of high-speed movement of printers and copying materials using the photoconductor causes a further decrease in the thickness of the photoconductive layer. Therefore, the chargeability is further deteriorated, and the image quality is reduced.
そこでこのような欠点の解決を図るため、第２図のよ
うに、電荷移動層（３）の面上に、透明絶縁保護層、例
えばトリクレンやクロロホルムなどを溶媒とする、ポリ
ウレタン，ポリエステル，ポリカーボネートなどの高分
子材料を、例えばスプレー法により塗布して透明絶縁保
護層（４）を形成することが行われている。In order to solve such a drawback, as shown in FIG. 2, a transparent insulating protective layer, for example, polyurethane, polyester, polycarbonate or the like using a solvent such as trichlene or chloroform as a solvent on the surface of the charge transfer layer (3). Is applied by, for example, a spray method to form a transparent insulating protective layer (4).
しかしこの方法では溶媒であるトリクレンやクロロホ
ルムが電荷移動層（３）をおかして、透明絶縁保護層
（４）内に不純物の拡散をもたらす。このため耐久性の
向上が十分でなく、しかも画像に不純物の影響が現れ
て、鮮明かつ長期間安定な画像の形成を妨げる。これに
加えてこの透明絶縁保護層（４）は、帯電に使用される
負帯電のコロナ放電により発生する酸化性のオゾンによ
りおかされて劣化し易いばかりか、温度や湿度が変化す
るとその影響が画像に現れて、解像度の低下などを招
く。また、自己潤滑性に劣り、離型性が悪いため、湿度
が高いと転写時紙粉の付着を招いて画質の低下を生ずる
欠点がある。However, in this method, solvents such as trichlene and chloroform cause the diffusion of impurities into the transparent insulating protective layer (4) through the charge transfer layer (3). Therefore, the durability is not sufficiently improved, and the influence of impurities appears on the image, which hinders the formation of a clear and long-term stable image. In addition to this, the transparent insulating protective layer (4) is not only easily deteriorated due to oxidizing ozone generated by negatively charged corona discharge used for charging, but also has an influence when temperature or humidity changes. Appears in the image and causes a decrease in resolution. In addition, since the self-lubricating property is inferior and the releasability is poor, if the humidity is high, there is a disadvantage that the paper dust adheres at the time of transfer and the image quality deteriorates.
また耐オゾン性や離型性の向上のため、前記のような
透明絶縁保護層（４）に、フッ素化合物であるフッ素シ
ランカップリング剤を添加混合する方法も提案されてい
るが、これは母材として使用されているシランカップリ
グ剤が表面自己潤滑性に劣るため、低エネルギのフッ素
を添加してもその効果は乏しい。Further, in order to improve ozone resistance and releasability, a method of adding and mixing a fluorine silane coupling agent, which is a fluorine compound, to the above-mentioned transparent insulating protective layer (4) has been proposed. Since the silane coupling agent used as a material is inferior in surface self-lubricating properties, the effect is poor even if low-energy fluorine is added.
（発明の目的） 本発明は透明絶縁保護層中への不純物の拡散による耐
久性の不充分や、画質の低下を防ぎながら、オゾンによ
る感光体表面の劣化による画質の低下を防ぎうると同時
に、すぐれた離型性を備えるようにして繰り返し複写時
における紙粉の付着による画質の低下の防止などを図っ
た有機電子写真用感光体の提供による。(Object of the Invention) The present invention can prevent the deterioration of the image quality due to the deterioration of the photoreceptor surface due to ozone while preventing the durability from being insufficient due to the diffusion of impurities into the transparent insulating protective layer and the deterioration of the image quality. The present invention provides an organic electrophotographic photoreceptor which has excellent releasability and prevents deterioration in image quality due to adhesion of paper dust during repeated copying.
（問題点を解決するための本発明の手段） （構成） 本発明者は有機光導電層の表面硬度、オゾンによる劣
化、低エネルギ化なとの各面から種々検討の結果、次の
構成をもたせることにより、前記した従来の感光体の諸
問題を解決できることを明らかにしてなされたものであ
る。即ち第３図のように導電性支持体（１）上に形成さ
れた電荷発生層（２）、電荷移動層（３）よりなる有機
光導電層の面上に、電荷移動層の形成材に不溶の酢酸，
ギ酸またはこれらの混合物を溶媒とするポリビニルホル
マールによる下塗り保護層（５）を形成し、更にその上
に上塗り保護層（６）として、下塗り保護層（５）の形
成材であるポリビニルホルマールに不溶な溶媒であるト
ルエンに溶解したフッ素樹脂層（６）を形成することに
より目的を達成したもので、下塗り保護層（５）および
上塗り保護層（６）は次の構造をもつ。(Means of the Invention for Solving the Problems) (Structure) The present inventor has conducted various studies from the viewpoints of the surface hardness of the organic photoconductive layer, deterioration due to ozone, and low energy consumption, and as a result, the following structure was obtained. It has been made clear that the above-mentioned problems of the conventional photoreceptor can be solved. That is, as shown in FIG. 3, on the surface of the organic photoconductive layer composed of the charge generation layer (2) and the charge transfer layer (3) formed on the conductive support (1), Insoluble acetic acid,
An undercoat protective layer (5) made of polyvinyl formal using formic acid or a mixture thereof as a solvent is formed, and an overcoat protective layer (6) is further formed thereon as an overcoat protective layer (6) insoluble in polyvinyl formal which is a material for forming the undercoat protective layer (5). The object has been achieved by forming a fluororesin layer (6) dissolved in toluene as a solvent, and the undercoat protective layer (5) and the overcoat protective layer (6) have the following structures.
即ち下塗り保護層（５）のポリビニルホルマールは の構造をもち、特にアルコール基が５〜９％、アセテー
ト基が６〜13％含まれるものが好ましい。That is, the polyvinyl formal of the undercoat protective layer (5) is In particular, those containing 5 to 9% of an alcohol group and 6 to 13% of an acetate group are preferable.
また上塗り保護層（６）のフッ素樹脂としては、 −（CF2−CFCl）−（Ｘ）−（Ｙ）− X;共重合モノマー Y;架橋サイトをもつ共重合モノマー で示されるクロロトリフルオロエチレン共重合体、また
はパーフロロアルキル基含有のアクリル樹脂があり、各
層の膜厚として下塗り保護層が0.1〜0.5μｍ、上塗り保
護層が0.3〜２μｍが適当である。As also fluororesin topcoat protective layer (6), - (CF 2 -CFCl) - (X) - (Y) - X; copolymerizable monomer Y; chlorotrifluoroethylene represented by copolymerizing a monomer having a crosslinking site There is a copolymer or an acrylic resin containing a perfluoroalkyl group, and the appropriate thickness of each layer is 0.1 to 0.5 μm for the undercoat protective layer and 0.3 to 2 μm for the overcoat protective layer.
（作用） 以上のようにすれば下塗り保護層（５）の溶媒は、有
機光導電層の形成材に対して不溶であるので、下塗り保
護層（５）への不純物の拡散を防いで帯電性の低下を防
ぎうる高い硬度をもった保護層が形成される。従って膜
厚の低下による帯電性の低下や不純物拡散による画質の
低下防止を分担する。また上塗り保護層（６）に使用さ
れる溶媒は下塗り保護層（５）の形成材に対して不溶で
あるので、その特性を何等変化させることがなく、フッ
素による耐オゾン性をもつ低エネルギの表面保護層が形
成され、オゾンよる下塗り保護層（５）を含む有機光導
電層の劣化防止、および離型性の不足にもとづく紙粉の
付着による画質の低下防止を分担する。このため、本発
明によれば十分な硬度と耐オゾン性をもち、しかも離型
性を向上させる低エネルギの表面保護層を有機光導電層
上に形成できる。従って上塗り層の厚さを使用期間を満
足する厚さとすれば、寿命が長く画質の良好な有機電子
写真用感光体を提供できる。(Function) Since the solvent for the undercoat protective layer (5) is insoluble in the organic photoconductive layer forming material as described above, the diffusion of impurities into the undercoat protective layer (5) is prevented, and the chargeability is improved. A protective layer having a high hardness that can prevent the decrease of the thickness is formed. Therefore, it is possible to prevent deterioration in chargeability due to a decrease in film thickness and prevention of deterioration in image quality due to impurity diffusion. Further, since the solvent used for the overcoating protective layer (6) is insoluble in the material for forming the undercoating protective layer (5), it does not change its characteristics at all, and has a low-energy, ozone-resistant ozone-resistant property. A surface protective layer is formed, which is responsible for preventing deterioration of the organic photoconductive layer including the undercoat protective layer (5) due to ozone and preventing deterioration of image quality due to adhesion of paper powder due to insufficient releasability. Therefore, according to the present invention, a low-energy surface protective layer having sufficient hardness and ozone resistance and improving the releasability can be formed on the organic photoconductive layer. Therefore, if the thickness of the overcoat layer is set to a thickness that satisfies the service period, a photoconductor for organic electrophotography having a long life and good image quality can be provided.
次に本発明の実施例を従来方法による比較例と対比し
て説明する。Next, an example of the present invention will be described in comparison with a comparative example using a conventional method.
（実施例１） アルミニウム支持体面上に有機化合物層を形成した市
販の感光体面上に、酢酸100容量部中に溶解させたポリ
ビニルホルマール20容量部を塗布し、これを100℃で30
分間加熱して下塗り保護層を形成した。更にこの上にト
ルエン100容量部中に溶解したクロロトリフルオロエチ
レン共重合体30容量部を塗布して100℃で２時間加熱し
て上塗り保護層を形成した。この下塗り保護層の厚さは
0.3μｍ、上塗り保護層の厚さは1.0μｍであった。また
下塗り保護層と上塗り保護層を含めた保護層の硬度を鉛
筆硬度法により調べたところ6Hであった。次に帯電，露
光，現像，転写およびクリーニングからなる公知の電子
写真法により画像試験を行ったところ、本発明保護層を
設けていない電荷移動層を露呈させた従来の感光体では
６万枚で帯電劣化が起きかぶりの発生となるが、本発明
の感光体では10万枚複写しても画像の乱れはなかった。(Example 1) 20 parts by volume of polyvinyl formal dissolved in 100 parts by volume of acetic acid was applied onto the surface of a commercially available photoreceptor having an organic compound layer formed on the surface of an aluminum support.
After heating for 1 minute, an undercoat protective layer was formed. Further, 30 parts by volume of a chlorotrifluoroethylene copolymer dissolved in 100 parts by volume of toluene was applied thereon and heated at 100 ° C. for 2 hours to form an overcoating protective layer. The thickness of this undercoat protective layer is
0.3 μm and the thickness of the overcoat protective layer was 1.0 μm. The hardness of the protective layers including the undercoat protective layer and the overcoat protective layer was measured by a pencil hardness method and found to be 6H. Next, an image test was performed by a known electrophotographic method including charging, exposure, development, transfer, and cleaning. As a result, 60,000 sheets of the conventional photoreceptor exposing the charge transfer layer without the protective layer of the present invention was exposed. Deterioration of charging occurs and fogging occurs. However, the photoreceptor of the present invention did not disturb the image even after copying 100,000 sheets.
また10万枚複写後温度33℃、湿度80％の環境化におい
て画像出しを行ったところ、紙粉の付着はなく良質の画
像が得られた。After copying 100,000 sheets, images were taken out in an environment of a temperature of 33 ° C. and a humidity of 80%. As a result, high quality images were obtained without adhesion of paper dust.
また本発明保護層の光導電層と下塗り保護層間の接着
性および下塗り保護層と上塗り保護層間の接着性をセロ
ハンテープによる剥離試験により調べたところ全く離し
た部分は認められなかった。When the adhesion between the photoconductive layer and the undercoat protective layer of the protective layer of the present invention and the adhesion between the undercoat protective layer and the overcoat protective layer were examined by a peeling test using a cellophane tape, no part was observed at all.
（実施例２） 実施例１に使用された感光体面上にギ酸100容量部中
に完全溶解したポリビニルホルマール10容量部を塗布し
て80℃で２時間加熱して下塗り保護層を形成した。その
後トルエン100容量部中に溶解したパーフロロアルキル
アクリル樹脂（旭硝子製EC−400）30容量部を塗布して
これを80℃で２時間加熱して上塗り保護層を形成させ
た。それぞれの膜厚は下塗り保護層が0.2μｍ、上塗り
保護層のそれが2.0μｍであった。Example 2 On the surface of the photoreceptor used in Example 1, 10 parts by volume of polyvinyl formal completely dissolved in 100 parts by volume of formic acid was applied and heated at 80 ° C. for 2 hours to form an undercoat protective layer. Thereafter, 30 parts by volume of a perfluoroalkyl acrylic resin (EC-400 manufactured by Asahi Glass) dissolved in 100 parts by volume of toluene was applied and heated at 80 ° C. for 2 hours to form an overcoat protective layer. Each film thickness of the undercoat protective layer was 0.2 μm and that of the overcoat protective layer was 2.0 μm.
帯電と除電を行った本発明感光体をオゾン濃度10ppm
の雰囲気中に放置して耐オゾン性を調べたところ、本発
明保護層のない帯電移動層を露呈させた感光体では連続
８時間で画像に乱れが発生したが、本発明感光体では48
時間放置しても画像に何等の乱れもなく良質なコピーが
得られた。次に実施例１と同様の電子写真法に複写試験
を行ったところ、10万枚の複写後も画像の乱れを生じな
かった。なお鉛筆硬度法による本発明保護層の硬度は6H
であった。The photoreceptor of the present invention having been subjected to electrification and static elimination has an ozone concentration of 10 ppm
When the ozone resistance was examined by leaving the photoreceptor without the protective layer of the present invention, the image was disturbed for 8 hours continuously.
Even if left for a long time, a good-quality copy was obtained without any disturbance in the image. Next, a copy test was performed by the same electrophotographic method as in Example 1. As a result, no image disorder occurred even after copying 100,000 sheets. The hardness of the protective layer of the present invention by the pencil hardness method is 6H
Met.
（比較例１） γ，γ，γ−トリフロロプロピルトリエトキシシラン
４容量部、γ−アミノプロピルトリエトキシシラン1.2
容量部、β−（3,4−エポキシシクロヘキシル）エチル
トリメトキシシラン４容量部、HClO40.1容量部を混合
し、これに水1.2容量部を加えて加水分解反応させ、つ
いでこれにエタノール50容量部を加えて塗液を形成し
た。そしてこれをアルミニウム支持体上に有機化合物層
を設けた実施例１と同様の感光体面上に塗布して100℃
で２時間加熱して保護層を形成した。この保護層の厚さ
は1.0μｍであった。実施例１と同様の電子写真法によ
り複写試験を行ったところ、10万枚の複写後画像にぼけ
を生じた。なお鉛筆硬度法による硬度は6Hであって、本
発明が前記のような問題の解決に有効であることを示し
ている。(Comparative Example 1) 4 parts by volume of γ, γ, γ-trifluoropropyltriethoxysilane, γ-aminopropyltriethoxysilane 1.2
Volume, β- (3,4-epoxycyclohexyl) ethyltrimethoxysilane (4 volumes) and HClO 4 ( 0.1 volumes) were mixed, and water (1.2 volumes) was added to cause a hydrolysis reaction. Then, ethanol (50 volumes) was added. Parts were added to form a coating solution. This was applied on the same photoreceptor surface as in Example 1 in which an organic compound layer was provided on an aluminum support,
For 2 hours to form a protective layer. The thickness of this protective layer was 1.0 μm. A copy test was performed by the same electrophotographic method as in Example 1. As a result, 100,000 copies of the copied image were blurred. The hardness according to the pencil hardness method is 6H, which indicates that the present invention is effective for solving the above-mentioned problems.
（発明の効果） 以上から明らかなように本発明によれば、耐久性，耐
オゾン性，離型性にすぐれた有機電子写真用感光体を提
供でき、長期間における良質な画像の実現に寄与でき
る。(Effects of the Invention) As is clear from the above, according to the present invention, it is possible to provide an organic electrophotographic photoreceptor having excellent durability, ozone resistance, and releasability, which contributes to realization of a high-quality image for a long period of time. it can.
第１図，第２図は従来の有機電子写真用感光体の説明
図、第３図は本発明の説明図である。 （１）……導電性支持体、（２）……電荷発生層、
（３）……電荷移動層、（４）……透明絶縁保護層、
（５）……下塗り保護層、（６）……上塗り保護層。1 and 2 are explanatory views of a conventional photoconductor for organic electrophotography, and FIG. 3 is an explanatory view of the present invention. (1) ... conductive support, (2) ... charge generation layer,
(3) ... a charge transfer layer, (4) ... a transparent insulating protective layer,
(5) ... undercoat protective layer, (6) ... overcoat protective layer.
フロントページの続き (72)発明者 吉留 光広 山梨県甲府市宮原町1014番地 山梨電子 工業株式会社内 (56)参考文献 特開 昭47−15143（ＪＰ，Ａ) 特開 昭62−201460（ＪＰ，Ａ) 特開 昭62−159149（ＪＰ，Ａ)Continuation of the front page (72) Inventor Mitsuhiro Yoshidome 1014 Miyahara-cho, Kofu City, Yamanashi Prefecture Inside Yamanashi Electronics Co., Ltd. (56) References JP-A-47-15143 (JP, A) JP-A-62-201460 (JP, A) JP-A-62-159149 (JP, A)
Claims (1)
層よりなる有機光導電層を設け、更にその上に絶縁保護
層を設けた有機電子写真用感光体において、 前記絶縁保護層が、酢酸，ギ酸またはこれらの混合物を
溶媒とするポリビニルホルマールによる下塗り保護層
と、フッ素樹脂による上塗り保護層から形成されている
ことを特徴とする有機電子写真用感光体。1. An organic electrophotographic photoreceptor comprising an organic photoconductive layer comprising a charge generation layer and a charge transfer layer provided on a surface of a conductive support, and further comprising an insulating protective layer provided thereon. A photoreceptor for organic electrophotography, comprising: an undercoat protective layer of polyvinyl formal using acetic acid, formic acid or a mixture thereof as a solvent, and an overcoat protective layer of a fluororesin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP33078290A JP2704671B2 (en) | 1990-11-30 | 1990-11-30 | Photoreceptor for organic electrophotography |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP33078290A JP2704671B2 (en) | 1990-11-30 | 1990-11-30 | Photoreceptor for organic electrophotography |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH04204541A JPH04204541A (en) | 1992-07-24 |
| JP2704671B2 true JP2704671B2 (en) | 1998-01-26 |
Family
ID=18236490
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP33078290A Expired - Fee Related JP2704671B2 (en) | 1990-11-30 | 1990-11-30 | Photoreceptor for organic electrophotography |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2704671B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5733698A (en) * | 1996-09-30 | 1998-03-31 | Minnesota Mining And Manufacturing Company | Release layer for photoreceptors |
-
1990
- 1990-11-30 JP JP33078290A patent/JP2704671B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH04204541A (en) | 1992-07-24 |
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