JP3095524B2 - Electrophotographic photoreceptor - Google Patents

Electrophotographic photoreceptor

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Publication number
JP3095524B2
JP3095524B2 JP04122327A JP12232792A JP3095524B2 JP 3095524 B2 JP3095524 B2 JP 3095524B2 JP 04122327 A JP04122327 A JP 04122327A JP 12232792 A JP12232792 A JP 12232792A JP 3095524 B2 JP3095524 B2 JP 3095524B2
Authority
JP
Japan
Prior art keywords
resin
weight
parts
photoreceptor
charge transfer
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 - Lifetime
Application number
JP04122327A
Other languages
Japanese (ja)
Other versions
JPH05313383A (en
Inventor
和千代 高岡
誠 岡地
英也 有末
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Paper Mills Ltd
Original Assignee
Mitsubishi Paper Mills Ltd
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Priority to JP04122327A priority Critical patent/JP3095524B2/en
Publication of JPH05313383A publication Critical patent/JPH05313383A/en
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Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【0001】[0001]

【産業上の利用分野】本発明は電子写真感光体に関する
ものであり、詳しくは高感度で、機械的特性に優れ、か
つ繰り返し特性に優れた電子写真感光体に関するもので
ある。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electrophotographic photosensitive member, and more particularly, to an electrophotographic photosensitive member having high sensitivity, excellent mechanical properties, and excellent repetition characteristics.

【0002】[0002]

【従来の技術】従来、電子写真方式の感光体としては、
セレン、硫化カドミウム、酸化亜鉛、シリコンなどの無
機光導電体を主成分とする感光層を有するものが広く知
られていた。
2. Description of the Related Art Conventionally, as an electrophotographic photosensitive member,
Those having a photosensitive layer mainly composed of an inorganic photoconductor such as selenium, cadmium sulfide, zinc oxide, and silicon have been widely known.

【0003】しかし、これらは感度、熱安定性、耐湿
性、耐久性等において必ずしも満足し得るものではな
く、また特にセレン及び硫化カドミウムはその毒性のた
めに製造上、取扱上にも制約があった。
However, these are not always satisfactory in sensitivity, thermal stability, moisture resistance, durability, and the like. In particular, selenium and cadmium sulfide are restricted in production and handling due to their toxicity. Was.

【0004】一方、有機光導電性化合物を主成分とする
感光層を有する電子写真感光体は、製造が比較的容易で
あること、安価であること、取扱が容易であること、ま
た一般にセレン感光体に比べて熱安定性が優れている等
多くの利点を有し、近年多くの注目を集めている。
On the other hand, an electrophotographic photosensitive member having a photosensitive layer containing an organic photoconductive compound as a main component is relatively easy to manufacture, inexpensive, easy to handle, and generally selenium sensitive. It has many advantages, such as better thermal stability than the body, and has attracted much attention in recent years.

【0005】このような有機光導電性化合物としては、
ポリーNービニルカルバゾールがよ/ 知られており、こ
れと2、4、7ートリニトロー9ーフルオレノン等のル
イス酸とから形成される電荷移動錯体を主成分とする感
光層を有する電子写真感光体が特公昭50ー10496
号公報に記載されている。しかしながらこの感光体は感
度、成膜性、及び耐久性において必ずしも満足できるも
のではなかった。
[0005] Such organic photoconductive compounds include:
Poly-N-vinyl carbazole is well known, and an electrophotographic photoreceptor having a photosensitive layer mainly composed of a charge transfer complex formed from a Lewis acid such as 2,4,7-trinitro-9-fluorenone is particularly known. Kosho 50-10496
No., published in Japanese Unexamined Patent Publication No. However, this photoreceptor was not always satisfactory in sensitivity, film formability, and durability.

【0006】これに対し、トリフェニルアミン類、スチ
ルベン類、ヒドラゾン類に代表される電荷移動剤とフタ
ロシアニン、アゾ化合物等の電荷発生剤などを組み合わ
せた低分子量の有機光導電体を含む電子写真感光体が提
案されている。これらを適当なバインダーと組み合わ
せ、更に電荷発生能力の高い化合物と電荷移動能力の高
い化合物を、例えば積層型感光体として組み合わせるこ
とにより、セレン等の無機感光体に近い感度を有するも
のも出現している。その結果、複写機やプリンター等の
分野で、このような有機光導電性化合物を主成分とする
感光体が大きく進出してきている。
On the other hand, an electrophotographic photosensitive material containing a low molecular weight organic photoconductor obtained by combining a charge transfer agent represented by triphenylamines, stilbenes and hydrazones with a charge generating agent such as phthalocyanine and azo compound. The body has been proposed. By combining these with an appropriate binder, and further combining a compound having a high charge generation ability and a compound having a high charge transfer ability, for example, as a laminated photoreceptor, those having a sensitivity close to that of an inorganic photoreceptor such as selenium have also appeared. I have. As a result, photoconductors containing such an organic photoconductive compound as a main component have largely entered the field of copying machines and printers.

【0007】 一方、このような有機感光体では複
写機内で帯電、露光、除電といった複雑なプロセスを経
る際、化合物は電荷の発生移動を担うだけでなく、高い
電界中でオゾン、光などの刺激を受ける。このためにプ
ロセスを繰り返すに従い、帯電後の初期電位が低下した
り、除電後の残留電位が上昇したり、感度自身が劣化す
るなど使用上多くの問題点が残されていた。
On the other hand, when such an organic photoreceptor undergoes a complicated process such as charging, exposure, and static elimination in a copying machine, the compound not only plays a role of generating and moving the electric charge but also stimulates ozone and light in a high electric field. Receive. Therefore, as the process is repeated, many problems remain in use, such as the initial potential after charging decreases, the residual potential after static elimination increases, and the sensitivity itself deteriorates.

【0008】また感光層は表面側は紙やトナーとの接触
に対し耐摩耗性が良くなければならず、導電性支持体に
は良好な接着性が要求されるなど機械的な問題点も残さ
れている。
In addition, the photosensitive layer must have good abrasion resistance on the surface side against contact with paper or toner, and still have mechanical problems such as a requirement for good adhesion to the conductive support. Have been.

【0009】例えば電子感光体用のバインダー樹脂とし
てよく引用されているビスフェノールAやZタイプのポ
リカーボネイト樹脂は導電性支持体であるアルミニウム
基盤に対する接着性は著しく弱くドラム感光体として実
用化に耐えるレベルではなかった。またポリアリレート
樹脂は導電性支持体に対する接着性は良好であるが、前
露光特性が劣り、繰り返し使用時には帯電電位が大きく
低下した。ポリカーボネイト樹脂とポリアリレート樹脂
の混合も検討したがいずれの特性も満足のいく感光体は
できなかった。
For example, bisphenol A or Z-type polycarbonate resin, which is often cited as a binder resin for an electrophotosensitive member, has a remarkably weak adhesion to an aluminum substrate as a conductive support, and is at a level that can withstand practical use as a drum photoconductor. Did not. Further, the polyarylate resin had good adhesion to the conductive support, but had poor pre-exposure characteristics, and the charging potential was greatly reduced when repeatedly used. The mixing of a polycarbonate resin and a polyarylate resin was also examined, but a photoconductor having satisfactory characteristics was not obtained.

【0010】[0010]

【発明が解決しようとする課題】本発明の目的は感光体
を電子写真プロセス内で繰り返し使用するにあたり、高
感度で機械的特性と繰り返し特性の優れた電子写真感光
体を提供することにある。
SUMMARY OF THE INVENTION An object of the present invention is to provide an electrophotographic photosensitive member having high sensitivity and excellent mechanical and repetitive characteristics when the photosensitive member is repeatedly used in an electrophotographic process.

【0011】[0011]

【課題を解決するための手段】本発明者は上記の目的を
達成するために種種の検討をした結果、電子写真感光体
において感光層のバインダー樹脂がポリカーボネイト樹
脂および化1で示される樹脂を含有させるか、またはポ
リカーボネイト樹脂とポリカーボネイト樹脂および化1
で示される樹脂を含有させることが有効であることを見
いだし本発明に至ったものである。
The present inventors have conducted various studies to achieve the above object, and as a result, the binder resin of the photosensitive layer in the electrophotographic photosensitive member contains a polycarbonate resin and a resin represented by the formula (1). Or a polycarbonate resin and a polycarbonate resin and
It has been found that it is effective to include the resin represented by the formula (1), and the present invention has been achieved.

【0012】[0012]

【化2】 Embedded image

【0013】以下、本発明の各構成要素について詳細に
説明する。
Hereinafter, each component of the present invention will be described in detail.

【0014】まず、感光体の感光層が形成される導電性
支持体としては周知の電子写真感光体に採用されている
ものがいずれも使用できる。
First, as the conductive support on which the photosensitive layer of the photoreceptor is formed, any of those used for a well-known electrophotographic photoreceptor can be used.

【0015】具体的には、例えば金、銀、白金、チタニ
ウム、アルミニウム、銅、亜鉛、鉄、導電処理をした金
属酸化物等のドラム、シート、ベルトあるいはこれらの
薄膜のラミネート物、蒸着物等が挙げられる。
Specifically, for example, drums, sheets, belts of gold, silver, platinum, titanium, aluminum, copper, zinc, iron, metal oxides and the like subjected to conductive treatment, laminates of these thin films, deposits, etc. Is mentioned.

【0016】更に、金属粉末、金属酸化物、カーボンブ
ラック、炭素繊維、ヨウ化銅、電荷移動錯体、無機塩、
イオン伝導性の高分子電解質等の導電性物質を適当なバ
インダーと共に塗布し、ポリマーマトリックス中に埋め
込んで導電処理を施したプラスチックやセラミック、紙
等で構成されるドラム、シート、ベルト等や、このよう
な導電性物質を含有し導電性となったプラスチック、セ
ラミック、紙等のドラム、シート、ベルト等が挙げられ
る。
Further, metal powder, metal oxide, carbon black, carbon fiber, copper iodide, charge transfer complex, inorganic salt,
Drums, sheets, belts, etc. made of plastics, ceramics, papers, etc., which are coated with a conductive material such as an ion-conductive polymer electrolyte together with an appropriate binder and embedded in a polymer matrix and subjected to a conductive treatment, Drums, sheets, belts, and the like of plastics, ceramics, paper, and the like that contain such a conductive substance and become conductive.

【0017】感光層は電荷発生物質である顔料等を分散
しバインダー中に埋め込んだ顔料分散単層型や、電荷発
生物質と電荷移動物質を分散混合しバインダー中に閉じ
込めた単層型、電荷発生物質と電荷移動物質を分離しバ
インダー中に封じた積層型などにより構成される。
The photosensitive layer is a pigment-dispersed single layer type in which a pigment or the like as a charge generating material is dispersed and embedded in a binder, or a single layer type in which a charge generating material and a charge transfer material are dispersed and mixed and confined in a binder. It is composed of a laminated type in which a substance and a charge transfer substance are separated and sealed in a binder.

【0018】積層型感光体ではポリカーボネイト樹脂、
化1で示されたユニットで構成された樹脂やポリアリレ
ート樹脂は電荷移動層に用いられる。本発明のポリカー
ボネイト樹脂は化2のユニットを持つポリマーで表さ
れ、具体的には表1に与えた。
In the case of a laminated type photoreceptor, polycarbonate resin,
The resin or the polyarylate resin composed of the unit shown in Chemical formula 1 is used for the charge transfer layer. The polycarbonate resin of the present invention is represented by a polymer having a unit represented by the following chemical formula 2, and is specifically given in Table 1.

【0019】[0019]

【化3】 Embedded image

【0020】(化2中、R1は水素原子、メチル基また
はフェニル基を表し、Xはジメチルメチレン基、シクロ
ヘキシレン基等の2価の連結基を表す。)
(In the formula 2, R 1 represents a hydrogen atom, a methyl group or a phenyl group, and X represents a divalent linking group such as a dimethylmethylene group or a cyclohexylene group.)

【0021】[0021]

【表1】 [Table 1]

【0022】同じくポリアリレート樹脂は化3のユニッ
トを持つポリマーで代表される。このポリマーはユニチ
カ製U−ポリマーとして入手することができる。
Similarly, the polyarylate resin is represented by a polymer having a unit represented by Chemical formula 3. This polymer is available as Unitika U-Polymer.

【0023】[0023]

【化4】 Embedded image

【0024】化1のユニットを持つ樹脂は、東洋紡製バ
イロン290(V−290)として入手することができ
る。
The resin having the unit of Chemical Formula 1 can be obtained as Toyon Byron 290 (V-290).

【0025】バインダー樹脂100重量部につきこれら
ポリカーボネイト樹脂、ポリアリレート樹脂と化1のユ
ニットを持つ樹脂の割合は、ポリカーボネイト樹脂およ
び/またはポリアリレート樹脂が95〜50重量部、化
1のユニットを持つ樹脂が5〜50重量部である。ポリ
カーボネイト樹脂に対しポリアリレート樹脂の割合は両
者の合計を100重量部とした場合、ポリカーボネイト
樹脂は100〜50重量部が適当である。化1のユニッ
トを持つ樹脂の割合がこれ以上になると感度低下が顕著
になり、ポリカーボネイト樹脂の割合がこれ以下になる
と前露光特性が悪化してくると共に繰り返し特性も崩れ
てくる。ポリカーボネイト樹脂単独では導電性支持体に
対する接着性が著しく悪化する。
The proportion of the polycarbonate resin, the polyarylate resin and the resin having the unit represented by the formula (1) per 100 parts by weight of the binder resin is such that the polycarbonate resin and / or the resin having the polyarylate resin is 95 to 50 parts by weight and the resin having the unit represented by the formula (1) Is 5 to 50 parts by weight. Assuming that the total amount of the polyarylate resin and the polycarbonate resin is 100 parts by weight, 100 to 50 parts by weight of the polycarbonate resin is appropriate. If the ratio of the resin having the unit of Chemical Formula 1 is higher than this, the sensitivity is remarkably reduced, and if the ratio of the polycarbonate resin is lower than this, the pre-exposure characteristics are deteriorated and the repetition characteristics are deteriorated. When the polycarbonate resin alone is used, the adhesiveness to the conductive support is significantly deteriorated.

【0026】電荷移動層に用いられるホール輸送型電荷
移動物質としては、表2で与えられたトリフェニルアミ
ン化合物、表3で与えられたスチルベン化合物、表4、
表5で与えられたヒドラゾン化合物、表6で与えられた
ブタジエン化合物等が挙げられるがこれらに限定される
わけではない。電荷移動物質はバインダー樹脂100重
量部に対して、25〜250重量部が適当である。この
範囲より電荷移動物質が少ないと感度が著しく悪化する
し、多いと電荷移動層の膜強度が減少し感光体として使
用できない。電荷移動層の膜厚は2〜50μmが適当で
ある。膜厚がこれより薄くなると十分な表面電位が得ら
れず現像等に支障をきたし、厚くなると浸漬塗布時の技
術的問題等が多くなり好ましくはない。
The hole transport type charge transfer materials used in the charge transfer layer include triphenylamine compounds given in Table 2, stilbene compounds given in Table 3, Table 4
Examples include, but are not limited to, the hydrazone compounds given in Table 5 and the butadiene compounds given in Table 6. An appropriate amount of the charge transfer material is 25 to 250 parts by weight based on 100 parts by weight of the binder resin. If the amount of the charge transfer material is less than this range, the sensitivity is remarkably deteriorated. The thickness of the charge transfer layer is suitably from 2 to 50 μm. If the film thickness is smaller than this, a sufficient surface potential cannot be obtained, which hinders development and the like. If the film thickness is larger, technical problems during immersion coating and the like increase, which is not preferable.

【0027】[0027]

【表2】 [Table 2]

【0028】[0028]

【表3】 [Table 3]

【0029】[0029]

【表4】 [Table 4]

【0030】[0030]

【表5】 [Table 5]

【0031】[0031]

【表6】 [Table 6]

【0032】感光層と導電性支持体の間には感光層から
導電性支持体への電荷の注入をコントロールするために
ブロッキング層を設けても構わないし、感光層表面には
感光体の耐久性を向上させるために表面層を設けても構
わない。
A blocking layer may be provided between the photosensitive layer and the conductive support to control the injection of electric charge from the photosensitive layer to the conductive support. A surface layer may be provided in order to improve the density.

【0033】電荷発生層に用いられる電荷発生物質とし
ては、化4の構造式を持つピラゾール骨格を持った、具
体的には表7、表8、表9に与えた顔料や、表10、表
11、表12、表13に与えたフルオレノン骨格やオキ
サジアゾール骨格やその他の骨格を持つビスアゾ顔料
や、モノアゾ顔料、ポリアゾ顔料、金属錯塩アゾ顔料、
ピラゾロンアゾ顔料、チアゾールアゾ顔料等に代表され
るアゾ系顔料、表14に与えたペリレン無水物及びペリ
レン酸イミド、ペリレン酸アミド等に代表されるペリレ
ン系顔料、アントラキノン誘導体、アンスアンスロン誘
導体、ジベンズピレンキノン誘導体、ピラントロン誘導
体、ビオラントロン誘導体及びイソビオラントロン誘導
体等に代表されるアントラキノン系または多環キノン系
顔料、無金属フタロシアニン、無金属ナフタロシアニ
ン、銅フタロシアニン、チタニルフタロシアニン、クロ
ルインジウムフタロシアニンなどに代表されるフタロシ
アニン系顔料、ポルフィリン誘導体等の顔料や、メチル
バイオレットに代表されるトリフェニルメタン染料、キ
ニザリン等のキノン染料やピリリウム塩、チアピリリウ
ム塩、ベンゾピリウム塩等の染料が挙げられる。
Examples of the charge generating substance used in the charge generating layer include pigments having a pyrazole skeleton having the structural formula of Chemical Formula 4, specifically, the pigments given in Tables 7, 8, and 9; 11, bisazo pigments having a fluorenone skeleton, oxadiazole skeleton or other skeleton given in Table 12, monoazo pigment, polyazo pigment, metal complex azo pigment,
Azo pigments represented by pyrazolone azo pigments, thiazole azo pigments, etc .; perylene anhydrides and perylene imides given in Table 14; perylene pigments represented by perylene amide; anthraquinone derivatives; anthranthrone derivatives; dibenz Anthraquinone-based or polycyclic quinone-based pigments, such as pyrenequinone derivatives, pyranthrone derivatives, biolanthrone derivatives, and isobiolanthrone derivatives; metal-free phthalocyanines, metal-free naphthalocyanines, copper phthalocyanines, titanyl phthalocyanines, and chloroindium phthalocyanines. Pigments such as phthalocyanine pigments, porphyrin derivatives, etc .; triphenylmethane dyes represented by methyl violet; quinone dyes such as quinizarin; pyrylium salts; thiapyrylium salts; Include the dye of the salt, and the like.

【0034】[0034]

【化5】 Embedded image

【0035】(化4中、nは0または1を示し、R2
3は水素原子、低級アルキル基、ハロゲン原子、ジフ
ェニルアミノ基等を示す。)
(In the chemical formula 4, n represents 0 or 1, and R 2 and R 3 represent a hydrogen atom, a lower alkyl group, a halogen atom, a diphenylamino group, etc.)

【0036】[0036]

【表7】 [Table 7]

【0037】[0037]

【表8】 [Table 8]

【0038】[0038]

【表9】 [Table 9]

【0039】[0039]

【表10】 [Table 10]

【0040】[0040]

【表11】 [Table 11]

【0041】[0041]

【表12】 [Table 12]

【0042】[0042]

【表13】 [Table 13]

【0043】[0043]

【表14】 [Table 14]

【0044】積層型感光体では少なくともこれら電荷発
生物質とバインダー樹脂とで電荷発生層が構成される。
バインダー樹脂としてはスチレン、酢酸ビニル、アクリ
ル酸エステル、メタアクリル酸エステル等によるビニル
化合物の重合体や共重合体、シリコン樹脂、フェノキシ
樹脂、ブチラール樹脂、ホルマール樹脂、フェノール樹
脂、ポリカーボネイト、ポリアリレート、ポリエステ
ル、ポリアミド、ポリイミド等やエポキシ樹脂、ウレタ
ン樹脂等の熱硬化性樹脂、光硬化性樹脂等が挙げられ
る。これらの樹脂は電荷発生層を形成するのに用いられ
るが、その他に感光体の支持体との接着性を改善した
り、顔料の溶媒中の分散性を高める働きもある。バイン
ダーは電荷発生物質100重量部に対し1から1000
重量部、好ましくは1から400重量部の範囲で用いら
れる。電荷発生層の厚さは、0.05〜20μmが好ま
しい。
In the laminate type photoreceptor, a charge generation layer is composed of at least these charge generation substances and a binder resin.
As the binder resin, polymers and copolymers of vinyl compounds such as styrene, vinyl acetate, acrylic acid ester, methacrylic acid ester, silicone resin, phenoxy resin, butyral resin, formal resin, phenol resin, polycarbonate, polyarylate, polyester , A thermosetting resin such as an epoxy resin and a urethane resin, a polyamide, a polyimide and the like, and a photocurable resin. These resins are used to form the charge generation layer, but also have the function of improving the adhesion of the photoreceptor to the support and of increasing the dispersibility of the pigment in the solvent. The binder is used in an amount of 1 to 1000 based on 100 parts by weight of the charge generating substance.
Parts by weight, preferably in the range of 1 to 400 parts by weight. The thickness of the charge generation layer is preferably 0.05 to 20 μm.

【0045】単層型電子写真感光体では電荷発生物質の
他にホール移動型やエレクトロン移動型の電荷移送剤が
用いられ、この層のバインダー樹脂として、ポリカーボ
ネイト樹脂およびポリアリレート樹脂と化1のユニット
を持つポリエステルが用いられる。
In the single-layer type electrophotographic photoreceptor, a hole transfer type or electron transfer type charge transfer agent is used in addition to the charge generation material, and a polycarbonate resin and a polyarylate resin are used as a binder resin in this layer. Is used.

【0046】本発明の電子写真感光体は構成材料の有機
化合物の酸化や光異性化による劣化を防止するために各
種の酸化防止剤や紫外線吸収剤を併用添加してもよい
し、成膜性、可とう性、機械的強度を向上させるために
周知の可塑剤を使用してもよい。用いられる酸化防止剤
としては、α−トコフェロール、t−ブチルハイドロキ
ノン、t−ブチルヒドロキシトルエン等に代表されるフ
ェノール系酸化防止剤、ホスファイト系酸化防止剤、チ
オエーテル酸化防止剤やヒンダードアミン系酸化防止剤
等がある。
In the electrophotographic photoreceptor of the present invention, various antioxidants and ultraviolet absorbers may be added in combination in order to prevent deterioration of the constituent organic compounds due to oxidation or photoisomerization. Well-known plasticizers may be used to improve the flexibility and mechanical strength. Examples of the antioxidant used include phenolic antioxidants represented by α-tocopherol, t-butylhydroquinone, t-butylhydroxytoluene, etc., phosphite antioxidants, thioether antioxidants and hindered amine antioxidants. Etc.

【0047】更に、本発明の電子写真感光体では、顔料
の場合は溶剤に分散し、染料やバインダー及び電荷移動
剤は溶解させて使用する。使用する溶剤はクロロホル
ム、ジクロルエタン、トリクロルエタン、トリクロルエ
チレンなどのハロゲン化炭化水素、ベンゼン、トルエ
ン、キシレンなどの芳香族炭化水素、ジオキサン、テト
ラヒドロフラン、ジメトキシエタン等のエーテル系、メ
チルセロソルブ、ジメチルセロソルブ、メチルセロソル
ブアセテート等のセロソルブ系、メチルエチルケトン、
シクロヘキサノン等のケトン系などの溶剤の単独または
2種以上の混合溶剤または必要に応じてアルコール類、
アセトニトリル、N、N−ジメチルホルムアミドなどの
溶剤を更に加え使用することができる。またドラムに塗
工する場合には浸漬塗布やスプレー塗布方法等が用いら
れる。
Further, in the electrophotographic photoreceptor of the present invention, in the case of a pigment, the pigment is dispersed in a solvent, and the dye, binder and charge transfer agent are dissolved and used. Solvents used are halogenated hydrocarbons such as chloroform, dichloroethane, trichloroethane, and trichloroethylene; aromatic hydrocarbons such as benzene, toluene, and xylene; ethers such as dioxane, tetrahydrofuran, and dimethoxyethane; methyl cellosolve, dimethyl cellosolve, and methyl. Cellosolves such as cellosolve acetate, methyl ethyl ketone,
A single solvent or a mixed solvent of two or more kinds of solvents such as ketones such as cyclohexanone or alcohols as required,
A solvent such as acetonitrile, N, N-dimethylformamide or the like can be further added and used. When coating on the drum, dip coating or spray coating is used.

【0048】[0048]

【実施例】次に本発明を実施例により更に詳細に説明す
るが、本発明はこれらに何ら限定されるものではない。
EXAMPLES Next, the present invention will be described in more detail with reference to examples, but the present invention is not limited to these examples.

【0049】実施例1Embodiment 1

【0050】例示化合物P26のビスアゾ顔料1重量部
とフェノキシ樹脂(ユニオンカーバイト製PKHJ)
0.2重量部とをテトラヒドロフラン100重量部に混
合し、ペイントコンディショナーによりガラスビーズと
共に2時間分散した。こうして得た顔料分散液を金属ア
ルミニウム薄版(JIS規格 #1050)上に浸漬塗
布し、膜厚約0.2μmの電荷発生層を形成した。
1 part by weight of a bisazo pigment of exemplified compound P26 and a phenoxy resin (PKHJ manufactured by Union Carbide)
And 0.2 parts by weight were mixed with 100 parts by weight of tetrahydrofuran, and dispersed together with glass beads by a paint conditioner for 2 hours. The pigment dispersion thus obtained was dip-coated on a thin metal aluminum plate (JIS standard # 1050) to form a charge generation layer having a thickness of about 0.2 μm.

【0051】[0051]

【化6】 Embedded image

【0052】次に例示化合物C45で示されるヒドラゾ
ン化合物8重量部、例示化合物PC09のポリカーボネ
イト樹脂(三菱ガス化学製Z−200)4重量部、ポリ
アリレート樹脂(ユニチカ製U−ポリマー)4重量部、
化1のユニットを持つ樹脂(東洋紡製V−290)2重
量部、α−トコフェロール0.1重量部、t−ブチルハ
イドロキノン0.1重量部及び化5の化合物0.1重量
部を、ジクロルメタン200重量部にを溶解させて、上
記キャリア発生物質の被膜上に、この溶液を浸漬塗布方
法により塗布し、乾燥膜厚20μmの電荷移動層を形成
した。
Next, 8 parts by weight of a hydrazone compound represented by the exemplified compound C45, 4 parts by weight of a polycarbonate resin of the exemplified compound PC09 (Z-200 manufactured by Mitsubishi Gas Chemical), 4 parts by weight of a polyarylate resin (U-polymer manufactured by Unitika),
2 parts by weight of a resin having the unit of Chemical Formula 1 (V-290 manufactured by Toyobo), 0.1 part by weight of α-tocopherol, 0.1 part by weight of t-butylhydroquinone and 0.1 part by weight of the compound of Chemical Formula 5 were added to 200 parts of dichloromethane. This solution was dissolved in parts by weight, and the solution was applied by dip coating on the above-mentioned carrier-generating substance film to form a charge transfer layer having a dry film thickness of 20 μm.

【0053】川口製作所製SP−428で感光体の白色
連続光における感度を測定した。また。ジェンテック製
シンシア90に、この様に作成した感光体を装着し、室
温23度、相対湿度55%の条件下で、除電、帯電、露
光の10000回の繰り返し試験を行い、この試験によ
って、感光体の帯電後の電位、残留電位、露光後の電位
を測定した。また感光体の1平方cmの領域を1mm角
にナイフで切傷をいれ、セロハンテープを付け、このテ
ープを剥す際に1mm角の感光体がいくつ支持体上に残
ったかを数えて接着性の試験とした。これらの測定結果
を表15に与えた。
The sensitivity of the photoreceptor to white continuous light was measured using SP-428 manufactured by Kawaguchi Seisakusho. Also. The photoreceptor thus prepared was attached to Gentech Cynthia 90 and subjected to 10,000 times of static elimination, charging and exposure tests at room temperature 23 ° C. and relative humidity 55%. The potential after charging, the residual potential, and the potential after exposure of the body were measured. In addition, a 1 mm square area of the photoreceptor was cut in a 1 mm square with a knife, a cellophane tape was attached, and when the tape was peeled off, the number of 1 mm square photoreceptors remaining on the support was counted and an adhesion test was performed. And The results of these measurements are given in Table 15.

【0054】実施例2 電荷移動層用のバインダー樹脂として例示化合物PC0
1のポリカーボネイト樹脂(帝人化成製K−1300)
8重量部、化1のユニットを持つ樹脂(V−290)2
重量部とする以外は実施例1と同様に感光体を作成し同
様に評価を行った。結果を表15に与えた。
Example 2 Exemplified compound PC0 as a binder resin for a charge transfer layer
1. Polycarbonate resin (K-1300 manufactured by Teijin Chemicals)
8 parts by weight, resin (V-290) 2 having the unit of Chemical Formula 1
A photoreceptor was prepared and evaluated in the same manner as in Example 1, except that the weight was used. The results are given in Table 15.

【0055】[0055]

【表15】 [Table 15]

【0056】比較例1〜5 実施例1における電荷移動層のバインダー樹脂を表16
のごとくに変化させた以外は同様にして感光体を作成し
た。これらの感光体の感度、繰り返し特性、接着性を実
施例1と同様に測定しその結果を表18に与えた。
Comparative Examples 1 to 5 Table 16 shows the binder resin of the charge transfer layer in Example 1.
A photoreceptor was prepared in the same manner except that the photoreceptor was changed as shown in FIG. The sensitivity, repetition characteristics, and adhesiveness of these photoreceptors were measured in the same manner as in Example 1, and the results are shown in Table 18.

【0057】[0057]

【表16】 [Table 16]

【0058】比較例6〜8 実施例1における電荷移動層用バインダーとして表17
に記載した樹脂を用いた他は同様に感光体を作成し測定
結果を表18に与えた。化1のユニットを持たないポリ
エステル樹脂として東洋紡製V−200を用いた。これ
らの感光体の感度、繰り返し特性、接着性を実施例1と
同様に測定し、その結果を表18に与えた。
Comparative Examples 6 to 8 As binders for the charge transfer layer in Example 1, Table 17
A photosensitive member was prepared in the same manner except that the resin described in (1) was used, and the measurement results are shown in Table 18. Toyobo V-200 was used as a polyester resin having no unit of Chemical Formula 1. The sensitivity, repetition characteristics, and adhesiveness of these photoreceptors were measured in the same manner as in Example 1, and the results are given in Table 18.

【0059】[0059]

【表17】 [Table 17]

【0060】[0060]

【表18】 [Table 18]

【0061】実施例3Embodiment 3

【0062】例示化合物P28のビスアゾ顔料1重量部
とブチラール樹脂(電気化学製#3000−K)0.5
重量部とをテトラヒドロフラン100重量部に混合し、
ペイントコンディショナーによりガラスビーズと共に4
時間分散した。こうして得た顔料分散液を金属アルミニ
ウム薄版(JIS規格 #1050)上にに浸漬塗布
し、膜厚約0.5μmの電荷発生層を形成した。
1 part by weight of a bisazo pigment of Exemplified Compound P28 and 0.5 of butyral resin (# 3000-K, manufactured by Denki Kagaku)
Parts by weight and 100 parts by weight of tetrahydrofuran,
4 with glass beads by paint conditioner
Time dispersed. The pigment dispersion thus obtained was applied onto a metal aluminum thin plate (JIS # 1050) by dip coating to form a charge generating layer having a thickness of about 0.5 μm.

【0063】次に例示化合物C31で与えられたヒドラ
ゾン化合物4重量部、例示化合物C43で与えられたヒ
ドラゾン化合物4重量部、例示化合物PC05のポリカ
ーボネイト樹脂8重量部、化1のユニットを持つ樹脂
(V−290)2重量部、α−トコフェロール0.1重
量部、2,5−ジ−t−ブチルハイドロキノン0.1重
量部を、ジクロルメタン200重量部にを溶解させて、
上記キャリア発生物質の被膜上に、この溶液を浸漬塗布
方法により塗布し、乾燥膜厚23μmの電荷移動層を形
成した。
Next, 4 parts by weight of the hydrazone compound given as Exemplified Compound C31, 4 parts by weight of the hydrazone compound given as Exemplified Compound C43, 8 parts by weight of a polycarbonate resin of Exemplified Compound PC05, and a resin (V -290) 2 parts by weight, 0.1 part by weight of α-tocopherol, 0.1 part by weight of 2,5-di-t-butylhydroquinone were dissolved in 200 parts by weight of dichloromethane,
This solution was applied on the carrier-generating substance film by a dip coating method to form a charge transfer layer having a dry film thickness of 23 μm.

【0064】この感光体を実施例1と同様な条件で特性
評価試験を行った。結果を表19に与えた。
This photosensitive member was subjected to a characteristic evaluation test under the same conditions as in Example 1. The results are given in Table 19.

【0065】[0065]

【表19】 [Table 19]

【0066】実施例4〜7 実施例3における電荷移動層のバインダー樹脂を表20
のごとくに変化させた以外は同様にして感光体を作成し
た。これらの感光体の感度、繰り返し特性、接着性を実
施例1と同様に測定しその結果を表22に与えた。
Examples 4 to 7 Table 20 shows the binder resin of the charge transfer layer in Example 3.
A photoreceptor was prepared in the same manner except that the photoreceptor was changed as shown in FIG. The sensitivity, repetition characteristics and adhesiveness of these photoreceptors were measured in the same manner as in Example 1, and the results are shown in Table 22.

【0067】[0067]

【表20】 [Table 20]

【0068】比較例9〜13 実施例3における電荷移動層用バインダーとして表21
に記載した樹脂を用いた他は同様に感光体を作成し同様
に測定し結果を表22に与えた。
Comparative Examples 9 to 13 As binders for the charge transfer layer in Example 3, Table 21
The photoreceptor was prepared in the same manner except that the resin described in (1) was used, and the measurement was performed in the same manner.

【0069】[0069]

【表21】 [Table 21]

【0070】比較例14 例示化合物P28のビスアゾ顔料1重量部と化1のユニ
ットを持つ樹脂(V−290)0.5重量部とをテトラ
ヒドロフラン100重量部に混合し、ペイントコンディ
ショナーによりガラスビーズと共に4時間分散した。こ
うして得た顔料分散液を金属アルミニウム薄版(JIS
規格 #1050)上にに浸漬塗布し、膜厚約0.5μ
mの電荷発生層を形成した。
Comparative Example 14 One part by weight of the bisazo pigment of the exemplified compound P28 and 0.5 part by weight of the resin (V-290) having the unit shown in Chemical formula 1 were mixed with 100 parts by weight of tetrahydrofuran, and the mixture was mixed with glass beads by a paint conditioner. Time dispersed. The pigment dispersion obtained in this manner is applied to a metal aluminum thin plate (JIS
Dip coating on standard # 1050)
m of the charge generation layer was formed.

【0071】次に例示化合物C31で与えられたヒドラ
ゾン化合物4重量部、例示化合物C43で与えられたヒ
ドラゾン化合物4重量部、例示化合物PC05のポリカ
ーボネイト樹脂10重量部、α−トコフェロール0.1
重量部、2,5−ジ−t−ブチルハイドロキノン0.1
重量部を、ジクロルメタン200重量部にを溶解させ
て、上記キャリア発生物質の被膜上に、この溶液を浸漬
塗布方法により塗布し、乾燥膜厚23μmの電荷移動層
を形成した。この感光体を実施例3と同様に測定し結果
を表22に与えた。
Next, 4 parts by weight of the hydrazone compound given as Exemplified Compound C31, 4 parts by weight of the hydrazone compound given as Exemplified Compound C43, 10 parts by weight of a polycarbonate resin of Exemplified Compound PC05, 0.1 parts of α-tocopherol
Parts by weight, 2,5-di-t-butylhydroquinone 0.1
A 200 parts by weight of dichloromethane was dissolved in 200 parts by weight of dichloromethane, and this solution was applied on the carrier-generating substance film by a dip coating method to form a charge transfer layer having a dry film thickness of 23 μm. This photoreceptor was measured in the same manner as in Example 3, and the results are shown in Table 22.

【0072】[0072]

【表22】 [Table 22]

【0073】[0073]

【発明の効果】このように本発明によれば、高感度で、
機械的強度に優れ、かつ繰り返し特性に優れた電子写真
感光体を提供することができる。
As described above, according to the present invention, high sensitivity,
An electrophotographic photoreceptor having excellent mechanical strength and excellent repetition characteristics can be provided.

───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開 昭57−178246(JP,A) 特開 昭55−77745(JP,A) 特開 昭56−119135(JP,A) (58)調査した分野(Int.Cl.7,DB名) G03G 5/05 101 C08L 69/00 ──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-57-178246 (JP, A) JP-A-55-77745 (JP, A) JP-A-56-119135 (JP, A) (58) Field (Int.Cl. 7 , DB name) G03G 5/05 101 C08L 69/00

Claims (1)

(57)【特許請求の範囲】(57) [Claims] 【請求項1】 導電性支持体と感光層を備えた電子写真
感光体において、感光層のバインダー樹脂がポリカーボ
ネイト樹脂および化1で示されたユニットで構成された
樹脂を含有するか、またはポリカーボネイト樹脂とポリ
アリレート樹脂および化1で示されたユニットで構成さ
れた樹脂を含有することを特徴とする電子写真感光体。 【化1】
1. An electrophotographic photoreceptor having a conductive support and a photosensitive layer, wherein the binder resin of the photosensitive layer contains a polycarbonate resin and a resin composed of the unit represented by the chemical formula 1, or a polycarbonate resin. An electrophotographic photosensitive member comprising: a polyarylate resin; and a resin composed of a unit represented by Chemical formula 1. Embedded image
JP04122327A 1992-05-15 1992-05-15 Electrophotographic photoreceptor Expired - Lifetime JP3095524B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP04122327A JP3095524B2 (en) 1992-05-15 1992-05-15 Electrophotographic photoreceptor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP04122327A JP3095524B2 (en) 1992-05-15 1992-05-15 Electrophotographic photoreceptor

Publications (2)

Publication Number Publication Date
JPH05313383A JPH05313383A (en) 1993-11-26
JP3095524B2 true JP3095524B2 (en) 2000-10-03

Family

ID=14833229

Family Applications (1)

Application Number Title Priority Date Filing Date
JP04122327A Expired - Lifetime JP3095524B2 (en) 1992-05-15 1992-05-15 Electrophotographic photoreceptor

Country Status (1)

Country Link
JP (1) JP3095524B2 (en)

Also Published As

Publication number Publication date
JPH05313383A (en) 1993-11-26

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