JPS62267747A - Binder resin for electrophotographic sensitive body - Google Patents
Binder resin for electrophotographic sensitive bodyInfo
- Publication number
- JPS62267747A JPS62267747A JP11061186A JP11061186A JPS62267747A JP S62267747 A JPS62267747 A JP S62267747A JP 11061186 A JP11061186 A JP 11061186A JP 11061186 A JP11061186 A JP 11061186A JP S62267747 A JPS62267747 A JP S62267747A
- Authority
- JP
- Japan
- Prior art keywords
- layer
- charge
- binder resin
- resin
- charge transport
- 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.)
- Pending
Links
- 239000011347 resin Substances 0.000 title claims abstract description 45
- 229920005989 resin Polymers 0.000 title claims abstract description 45
- 239000011230 binding agent Substances 0.000 title claims description 33
- 229920000728 polyester Polymers 0.000 claims abstract description 10
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 claims abstract description 9
- 125000000217 alkyl group Chemical group 0.000 claims abstract description 5
- 125000003118 aryl group Chemical group 0.000 claims abstract description 3
- 125000005843 halogen group Chemical group 0.000 claims abstract description 3
- 108091008695 photoreceptors Proteins 0.000 claims description 28
- 125000004122 cyclic group Chemical group 0.000 claims description 2
- 239000000126 substance Substances 0.000 claims 1
- 239000000463 material Substances 0.000 abstract description 32
- 239000000758 substrate Substances 0.000 abstract description 16
- 239000002904 solvent Substances 0.000 abstract description 11
- 230000001070 adhesive effect Effects 0.000 abstract description 3
- 229910052736 halogen Inorganic materials 0.000 abstract 1
- 230000001105 regulatory effect Effects 0.000 abstract 1
- 239000010410 layer Substances 0.000 description 64
- 230000000052 comparative effect Effects 0.000 description 8
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 description 6
- HFACYLZERDEVSX-UHFFFAOYSA-N benzidine Chemical compound C1=CC(N)=CC=C1C1=CC=C(N)C=C1 HFACYLZERDEVSX-UHFFFAOYSA-N 0.000 description 5
- 238000005299 abrasion Methods 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 125000000664 diazo group Chemical group [N-]=[N+]=[*] 0.000 description 3
- 238000001035 drying Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 239000000049 pigment Substances 0.000 description 3
- UJOBWOGCFQCDNV-UHFFFAOYSA-N 9H-carbazole Chemical compound C1=CC=C2C3=CC=CC=C3NC2=C1 UJOBWOGCFQCDNV-UHFFFAOYSA-N 0.000 description 2
- 229920000402 bisphenol A polycarbonate polymer Polymers 0.000 description 2
- 238000009792 diffusion process Methods 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 238000009661 fatigue test Methods 0.000 description 2
- 150000007857 hydrazones Chemical class 0.000 description 2
- 239000011241 protective layer Substances 0.000 description 2
- 239000004419 Panlite Substances 0.000 description 1
- BUGBHKTXTAQXES-UHFFFAOYSA-N Selenium Chemical compound [Se] BUGBHKTXTAQXES-UHFFFAOYSA-N 0.000 description 1
- 239000002313 adhesive film Substances 0.000 description 1
- 239000012790 adhesive layer Substances 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
- 150000004982 aromatic amines Chemical class 0.000 description 1
- 125000004429 atom Chemical group 0.000 description 1
- 239000013040 bath agent Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- TVMXDCGIABBOFY-UHFFFAOYSA-N octane Chemical compound CCCCCCCC TVMXDCGIABBOFY-UHFFFAOYSA-N 0.000 description 1
- WCPAKWJPBJAGKN-UHFFFAOYSA-N oxadiazole Chemical compound C1=CON=N1 WCPAKWJPBJAGKN-UHFFFAOYSA-N 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 229920005668 polycarbonate resin Polymers 0.000 description 1
- 239000004431 polycarbonate resin Substances 0.000 description 1
- 229920001225 polyester resin Polymers 0.000 description 1
- 239000004645 polyester resin Substances 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- DNXIASIHZYFFRO-UHFFFAOYSA-N pyrazoline Chemical compound C1CN=NC1 DNXIASIHZYFFRO-UHFFFAOYSA-N 0.000 description 1
- WVIICGIFSIBFOG-UHFFFAOYSA-N pyrylium Chemical compound C1=CC=[O+]C=C1 WVIICGIFSIBFOG-UHFFFAOYSA-N 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000007665 sagging Methods 0.000 description 1
- 229910052711 selenium Inorganic materials 0.000 description 1
- 239000011669 selenium Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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
- G03G5/0528—Macromolecular bonding materials
- G03G5/0557—Macromolecular bonding materials obtained otherwise than by reactions only involving carbon-to-carbon unsatured bonds
- G03G5/056—Polyesters
-
- 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
- G03G5/0528—Macromolecular bonding materials
- G03G5/0557—Macromolecular bonding materials obtained otherwise than by reactions only involving carbon-to-carbon unsatured bonds
- G03G5/0564—Polycarbonates
Landscapes
- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Spectroscopy & Molecular Physics (AREA)
- General Physics & Mathematics (AREA)
- Photoreceptors In Electrophotography (AREA)
Abstract
Description
【発明の詳細な説明】 〔産業上の利用分野〕 この発明は電子写真感光体の結着樹脂に関する。[Detailed description of the invention] [Industrial application field] The present invention relates to a binder resin for electrophotographic photoreceptors.
更に詳しく言えば、この発明は特に電荷発生層と電荷輸
送層とを支持体上に積層したタイプの電子写真感光体用
結着樹脂に関する。More specifically, the present invention particularly relates to a binder resin for electrophotographic photoreceptors of the type in which a charge generation layer and a charge transport layer are laminated on a support.
電子写真用有機感光体としては、電荷発生層と電荷輸送
層の積層感光体が一役に用いられている。As an organic photoreceptor for electrophotography, a laminated photoreceptor including a charge generation layer and a charge transport layer is used.
電荷輸送層は芳香族アミン、ヒドラゾン等の電荷輸送材
料を結着樹脂中に分散した層であり、又電荷発生層はセ
レン等の追着膜、ｔｒｉ−３ｅ粒子を結着樹脂中に分散
した層あるいはビスアゾ顔料等の電荷発生材料を結着樹
脂中に分散した層である。The charge transport layer is a layer in which a charge transport material such as aromatic amine or hydrazone is dispersed in a binder resin, and the charge generation layer is a layer in which an adhesive film such as selenium or tri-3e particles are dispersed in a binder resin. This is a layer in which a charge generating material such as a bisazo pigment is dispersed in a binder resin.
この電荷発生層、電荷輸送層に用いられる樹脂としては
ポリエステル樹脂（特開昭５０−５７４４０号）、ポリ
カーボネート樹脂（特開昭５０−９８３３２号）がある
。Resins used for the charge generation layer and the charge transport layer include polyester resin (Japanese Patent Application Laid-Open No. 50-57440) and polycarbonate resin (Japanese Patent Application Laid-Open No. 50-98332).
このような結着樹脂を用いた有機感光体を作成する方法
は電荷発生材料と結着樹脂と溶媒とからなる溶液を基板
上に塗布し、乾燥後電荷輸送材料と結着樹脂と溶媒を含
む浴液をこの電荷発生層の上に塗布し、乾燥して積層し
た感光層を形成するものである。尚、積層順序は逆の電
荷輸送層、電荷発生層の順でも良く、この場合更に導電
性材料を結着樹脂溶液中に分散した溶液を塗布した保護
層を形成するのが一般的である。A method for producing an organic photoreceptor using such a binder resin is to apply a solution consisting of a charge-generating material, a binder resin, and a solvent onto a substrate, and after drying, apply a solution containing a charge-transporting material, a binder resin, and a solvent. A bath liquid is applied onto this charge generation layer and dried to form a laminated photosensitive layer. Note that the stacking order may be the reverse order of the charge transport layer and the charge generation layer, and in this case, it is common to further form a protective layer coated with a solution in which a conductive material is dispersed in a binder resin solution.
この電荷輸送層を（あるいは電荷発生層を）’Ｉｔ荷発
生層上に（あるいは電荷輸送層上ｌこ）塗布する場合、
電荷輸送層の溶液に台まれている溶媒が先に形成した電
荷発生層を溶融あるいは軟化してしまい、電荷輸送材料
あるいは電荷発生材料の拡散が生じたり、又接合界面が
乱れてしまう現象が生ずる。When this charge transport layer (or charge generation layer) is coated on the charge generation layer (or on the charge transport layer),
The solvent contained in the solution of the charge transport layer melts or softens the previously formed charge generation layer, causing diffusion of the charge transport material or charge generation material and disturbance of the bonding interface. .
従来用いられている結着樹脂は耐溶剤性が悪く。Conventionally used binder resins have poor solvent resistance.
積層時に、特に下層の溶解もしくは軟化が生じていた。During lamination, melting or softening occurred, particularly in the lower layer.
又溶媒耐性のある樹脂は、電荷発生材料あるいは電荷輸
送材料の分散性が悪いという不都合を有する。Additionally, solvent-resistant resins have the disadvantage of poor dispersibility of charge-generating materials or charge-transporting materials.
本発明の目的は、耐溶剤性、強度、耐久性、耐熱性、耐
摩耗性があり、電荷発生材料及び電荷輸送材料との整合
性にすぐれた電子写真感光体用結着樹脂を提供すること
にある。An object of the present invention is to provide a binder resin for electrophotographic photoreceptors that has solvent resistance, strength, durability, heat resistance, and abrasion resistance, and has excellent compatibility with charge generation materials and charge transport materials. It is in.
また本発明の目的は電子写真感光体用の基板（Ｍなどの
金属板ンあるいは他の樹脂層との接着性にすぐれた結着
樹脂を提供することにある。Another object of the present invention is to provide a binder resin that has excellent adhesion to a substrate for an electrophotographic photoreceptor (a metal plate such as M or other resin layer).
〔問題点を解決するための手段及び作用〕本発明の目的
は、一般式
で示されるポリエステルカーボネート樹脂を電子写真感
光体の結着樹脂として用いることにより達成することが
できる。[Means and effects for solving the problems] The objects of the present invention can be achieved by using a polyester carbonate resin represented by the general formula as a binder resin for an electrophotographic photoreceptor.
前記の一般式中、ｎは１〜４の整数であり、Ｒ１及びに
、は互に独立したものであって、それぞれ水率原子、ア
ルキル基または芳香族基を表わすか、またはＲ１とに、
が−諸になって環状構造を形成してもよく％Ｘ、、！、
、！、及び−は互に独立したものであって、それぞれハ
ロゲン原子またはアルキル基を表わす。ｍは樹脂の重量
平均分子量が１０，０００〜１００，０００．好ましく
は２５，０００以上となるような整数を表わす。In the above general formula, n is an integer of 1 to 4, R1 and are independent of each other, and each represents a water atom, an alkyl group, or an aromatic group, or R1 and
%X,,! may be combined to form a cyclic structure. ,
,! , and - are independent of each other and each represents a halogen atom or an alkyl group. m is a weight average molecular weight of the resin of 10,000 to 100,000. It preferably represents an integer of 25,000 or more.
このような本発明の結着樹脂として用いられるポリエス
テルカーボネート樹脂の具体例を下記に構造式で示す。A specific example of the polyester carbonate resin used as the binder resin of the present invention is shown below in the form of a structural formula.
式中ｎは１〜４である。In the formula, n is 1-4.
本発明による結着樹脂は、電荷発生層、電荷輸送層の結
着樹脂、または金属アルミニウム等の導電性基板と電荷
発生層あるいは電荷輸送層との間の中間層として用いる
ことができる。The binder resin according to the present invention can be used as a binder resin for a charge generation layer or a charge transport layer, or as an intermediate layer between a conductive substrate such as metal aluminum and a charge generation layer or a charge transport layer.
（１） 電荷発生層の結着剤として用いる場合には。(1) When used as a binder for a charge generation layer.
（イ）導電性基板上に、を荷輸送層を形成した後、トリ
スアゾ系、スクェアリリウム系、ピリリウム系、Ｔｒｉ
−３ｓ等の電荷発生材料を結着樹脂とともに溶媒中に分
散混合した溶液として塗布して電荷発生層を形成するか
（正極性帯電用感光体ン、または（ロ）導電性基板上に
前記の電荷発生材料と結着樹脂との分散混合液を塗布乾
燥して電荷発生層を形成した後、電荷輸送層を設ゆる（
負極性帯電用感光体）。(a) After forming a charge transport layer on a conductive substrate, apply trisazo-based, square aryllium-based, pyrylium-based, Tri
- A charge generating layer is formed by coating a charge generating material such as 3S as a dispersed mixture in a solvent together with a binder resin (on a positive charging photoreceptor, or (b) on a conductive substrate as described above). After forming a charge generation layer by coating and drying a dispersion mixture of a charge generation material and a binder resin, a charge transport layer is provided (
photoreceptor for negative polarity charging).
（匂 電荷輸送層の結着剤として用いる場合）こは、ｅ
→導電性基板上に、ベンジジン系、カルバゾール系、ピ
ラゾリン系、ヒドラゾン系、オキサジアゾール系などの
電荷輸送材料を結着樹脂とともに溶媒中に分散混合した
溶液として塗布乾燥し、電荷輸送材料を形成し、その上
ｌこ電荷発生層を設けるか（正極性帯電用感光体）、ま
たはに）導電性基板上に電荷発生層を形成した後、その
上に前述の電荷輸送材料と結着樹脂との分散混合液を塗
布乾燥して電荷輸送層を形成する（負極性帯電用感光体
）。(When used as a binder for the charge transport layer)
→A charge transporting material such as benzidine-based, carbazole-based, pyrazoline-based, hydrazone-based, oxadiazole-based, etc. is dispersed and mixed in a solvent with a binder resin on a conductive substrate, and then applied as a solution and dried to form a charge transporting material. Then, after forming the charge generation layer on the conductive substrate (or after forming the charge generation layer on the conductive substrate), the charge transport material and the binder resin described above are added. A charge transport layer is formed by coating and drying a dispersion mixture of (negative polarity charging photoreceptor).
前記（１）及び（２）の構成の感光体は％離型材料を用
いることによって、導電性基板とは反対側、つまり使用
時に表面側となる層から、離型材料上に順次層形成し、
最後に離型材料を剥すことによっても作成することがで
き、この場合にも均一で接着性よ（各層を形成すること
ができる。The photoreceptor having the configurations (1) and (2) above uses a release material, so that layers are sequentially formed on the release material starting from the side opposite to the conductive substrate, that is, the layer that becomes the surface side during use. ,
It can also be created by peeling off the mold release material at the end, and in this case as well, each layer can be formed with uniform adhesive properties.
本発明の電子写真感光体用結着樹脂によれば、その使用
の態様に応じて、展進される感光体に結着樹脂の性能に
基づ（効果を得ることができる。According to the binder resin for electrophotographic photoreceptors of the present invention, effects can be obtained on the developed photoreceptor based on the performance of the binder resin, depending on the mode of use.
例えば前記１（イ）の電荷発生層の結着樹脂として用い
た正極性帯電用感光体及び２に）の電荷輸送層の結着樹
脂として用いた負極性帯電用感光体の場合には、保護層
の塗布時に耐浴剤性があるため電荷発生層が乱れること
がなく、強度面も良好であるため、ベルト状感光体とし
ても耐久性に優れ、保護層を設けない場合でも充分な耐
摩耗性があり、耐久性にすぐれている。For example, in the case of the positive charging photoreceptor used as the binder resin for the charge generation layer in 1(a) above and the negative charging photoreceptor used as the binder resin for the charge transport layer in 2), the protective Because the layer is resistant to bath agents, the charge generation layer is not disturbed when applied, and has good strength, so it has excellent durability as a belt-shaped photoreceptor, and has sufficient abrasion resistance even without a protective layer. It is durable and has excellent durability.
また１ （ＣＩ）の電荷発生層の結着樹脂として用いた
負極性帯電用感光体及び２ヒラの電荷輸送層の結着ｍ脂
として用いた正極性帯電用感光体の場合には。In the case of the negative charging photoreceptor used as the binder resin for the charge generation layer of 1 (CI) and the positive charging photoreceptor used as the binder resin for the charge transport layer of 2H.
電荷輸送層（２（ハ）では電荷発生層）の塗布時に、耐
溶剤性があるため層が乱れることがなく、強度面も良好
でベルト状８元体としても耐久性にすぐれ、基板との接
着性がよいため、特に接着１這を設ける必要がない。When applying the charge transport layer (charge generation layer in 2 (c)), the layer is not disturbed due to its solvent resistance, has good strength, and has excellent durability even as a belt-like octane, and is easy to bond with the substrate. Since the adhesive property is good, there is no need to provide a special adhesive layer.
実施例１
Ｍ基板上に設けたＴｒｉ−３ｅの電荷発生層１μ上に、
次式
で示されるベンジジン誘導体３を及び次式で示される
ホリエステルカーボネート３ｔを塩化メチレン３４Ｖに
溶かした溶液を塗布乾燥して電荷輸送層２５μを形成し
て電子写真用感光体を作成した。Example 1 On a 1 μm charge generation layer of Tri-3e provided on an M substrate,
A solution of benzidine derivative 3 represented by the following formula and polyester carbonate 3t represented by the following formula dissolved in 34V of methylene chloride was coated and dried to form a charge transport layer of 25 μm to prepare an electrophotographic photoreceptor.
比較例１
電荷輸送材料として次式
で示されるビスフェノールＡポリカーボネート（奇人社
製、パンライトＬ １２５０ ）を用いたこと以外は実
施例１と同様にして感光体を作成した。Comparative Example 1 A photoreceptor was produced in the same manner as in Example 1, except that bisphenol A polycarbonate represented by the following formula (Panlite L 1250, manufactured by Kijinsha) was used as the charge transport material.
実施例１及び比較例１の感光体について、通常の電子写
真特性測定ＩｆｃＩｔにて、帯電性、残留電位及びそれ
らのくり返し特性を測定したところ、表１に示す結果が
得られた。The photoreceptors of Example 1 and Comparative Example 1 were measured for chargeability, residual potential, and their repetition characteristics using IfcIt, a normal electrophotographic property measurement method, and the results shown in Table 1 were obtained.
表１
ＲＰ：残留電位＠ Ｅｌ／４ ： ｌ／４減露光露光
量ら本発明の結着樹脂を用いた実施例の感光体では長期
間にわたって残留電位が低く、電荷輸送材料と結着樹脂
とのすぐれた整合性が明らかである。Table 1 RP: Residual potential @ El/4: 1/4 reduced exposure The photoreceptor of the example using the binder resin of the present invention had a low residual potential over a long period of time, and the relationship between the charge transport material and the binder resin was The excellent consistency of the results is clear.
実施例２
実施例１の電荷輸送材層用溶液を、Ｍ基板上に厚さ２５
μになるように塗布乾燥したところ、接着性が良好で容
易に剥が丁ことができなかった。Example 2 The charge transport material layer solution of Example 1 was applied to a thickness of 25 mm on an M substrate.
When it was coated and dried to give a thickness of μ, it had good adhesion and could not be easily peeled off.
比較例２
比較例１の電荷輸送材層用溶液をＭ基板上に２５μにな
るように塗布乾燥したところ、得られたフィルムは簡単
にはがれた。Comparative Example 2 When the charge transport material layer solution of Comparative Example 1 was applied onto an M substrate to a thickness of 25 μm and dried, the resulting film was easily peeled off.
実施例３
実施例１の電荷輸送材層用溶液を、シリコン系剥離剤を
塗布したＭ板上に２５μになるように塗布乾燥した後、
Ｍ板上からフィルムを剥して、短冊状に切り、荷重１に
９にて耐揉疲労試験を行った。Example 3 The charge transporting material layer solution of Example 1 was applied onto an M plate coated with a silicone-based release agent to a thickness of 25μ and dried.
The film was peeled off from the M plate, cut into strips, and subjected to a rolling fatigue test at loads of 1 to 9.
比較例３
比較例２で得られたフィルムを用いて実施例３と同様に
して耐揉疲労試験を行った。Comparative Example 3 Using the film obtained in Comparative Example 2, a rubbing fatigue test was conducted in the same manner as in Example 3.
実施例３及び比較例３についての結果を表２に示す。Table 2 shows the results for Example 3 and Comparative Example 3.
表２
実施例４
Ｍ基板上に、ビスアゾ顔料４０重量部とポリエステルカ
ーボネート（具体例（３））６０重量部を塩化メチレン
に溶解した溶液を塗布、乾燥して２μｍ厚の電荷発生層
を形成し、この上に実施例１で用いたベンジジン誘導体
５０重量部とビスフェノールＡポリカーボネート５０重
量部をＴＨＦに洛かした溶液を塗布し、乾燥して２５μ
厚の電荷輸送層を形成した。この感光体の切断面を電子
顕微鏡にて観察したところ、電荷発生層にはベンジジン
誘導体は殆ど検出されず、また電荷発生層と電荷輸送層
との界面にみだれは認められなかった。Table 2 Example 4 A solution prepared by dissolving 40 parts by weight of bisazo pigment and 60 parts by weight of polyester carbonate (Specific Example (3)) in methylene chloride was applied onto the M substrate and dried to form a charge generation layer with a thickness of 2 μm. On top of this, a solution of 50 parts by weight of the benzidine derivative used in Example 1 and 50 parts by weight of bisphenol A polycarbonate in THF was applied, and dried to form a 25μ
A thick charge transport layer was formed. When the cut surface of this photoreceptor was observed under an electron microscope, almost no benzidine derivative was detected in the charge generation layer, and no sagging was observed at the interface between the charge generation layer and the charge transport layer.
比較例４
電荷発生層のポリエステルカーボネートをポリエステル
に代えて、実施例４と同様にして感光体を作成して評価
した。Comparative Example 4 A photoreceptor was prepared and evaluated in the same manner as in Example 4 except that the polyester carbonate in the charge generation layer was replaced with polyester.
電荷発生層中に電荷輸送材料であるベンジジン誘導体が
、又電荷輸送中に電荷発生材料であるビスアゾ顔料がそ
れぞれ検出され、又発生層と輸送層との界面は直線状を
示さず乱れていた。これは輸送材料奴を塗布するに際し
て１発生層皮膜が軟化もしくは溶解して拡散現象が生じ
たことによるものと考えられる。A benzidine derivative as a charge transport material was detected in the charge generation layer, and a bisazo pigment as a charge generation material was detected during charge transport, and the interface between the generation layer and the transport layer was not linear but disordered. This is thought to be due to the fact that the first generation layer film softened or dissolved during the application of the transport material, causing a diffusion phenomenon.
本発明のポリエステルカーボネート樹脂からなる電子写
真感光体用結着樹脂は電荷発生材料及び電荷輸送材料と
の整合性がよく、耐溶剤性、強度、耐久性、耐熱性、耐
摩耗性にすぐれていると共に、基板としての金属等との
接着性も良好であり、従ってこの樹脂を利用することに
より電気的特性及び力学的強度にすぐれた電子写真感光
体を作成することができる。The binder resin for electrophotographic photoreceptors made of the polyester carbonate resin of the present invention has good compatibility with charge-generating materials and charge-transporting materials, and has excellent solvent resistance, strength, durability, heat resistance, and abrasion resistance. In addition, it has good adhesion to metals and the like as a substrate, and therefore, by using this resin, it is possible to create an electrophotographic photoreceptor with excellent electrical properties and mechanical strength.
Claims (1)
互に独立したものであつて、それぞれ水素原子、アルキ
ル基または芳香族基を表わすか、またはＲ＿１とＲ＿２
が一諸になつて環状構造を形成してもよく、Ｘ＿１、Ｘ
＿２、Ｘ＿３及びＸ＿４は互に独立したものであつて、
それぞれハロゲン原子またはアルキル基を表わす。 で示され、重量平均分子量が１０，０００〜１００，０
００のポリエステルカーボネート樹脂であることを特徴
とする電子写真感光体用結着樹脂。[Claims] General formula ▲ Numerical formula, chemical formula, table, etc. represents a group or an aromatic group, or R_1 and R_2
may join together to form a cyclic structure, X_1,
_2, X_3 and X_4 are independent of each other,
Each represents a halogen atom or an alkyl group. and the weight average molecular weight is 10,000 to 100,0
A binder resin for an electrophotographic photoreceptor, which is a polyester carbonate resin of No. 00.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11061186A JPS62267747A (en) | 1986-05-16 | 1986-05-16 | Binder resin for electrophotographic sensitive body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11061186A JPS62267747A (en) | 1986-05-16 | 1986-05-16 | Binder resin for electrophotographic sensitive body |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62267747A true JPS62267747A (en) | 1987-11-20 |
Family
ID=14540211
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11061186A Pending JPS62267747A (en) | 1986-05-16 | 1986-05-16 | Binder resin for electrophotographic sensitive body |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62267747A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0411532A2 (en) * | 1989-08-01 | 1991-02-06 | Mitsubishi Chemical Corporation | Electrophotographic photoreceptor |
| EP0754977A1 (en) * | 1995-07-07 | 1997-01-22 | Lexmark International, Inc. | Electrophotographic photoconductor having improved cycling stability and oil resistance |
| US5763126A (en) * | 1995-06-01 | 1998-06-09 | Sharp Kabushiki Kaisha | Electrophotographic photoreceptor and production process for same |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57146257A (en) * | 1981-03-04 | 1982-09-09 | Ricoh Co Ltd | Composite electrophotographic receptor |
| JPS5971057A (en) * | 1982-10-18 | 1984-04-21 | Nippon Telegr & Teleph Corp <Ntt> | Electrophotogaphic receptor |
| JPS60172045A (en) * | 1984-02-16 | 1985-09-05 | Konishiroku Photo Ind Co Ltd | Photosensitive body |
| JPS60172044A (en) * | 1984-02-16 | 1985-09-05 | Konishiroku Photo Ind Co Ltd | Preparation of photosensitive body |
| JPS60192950A (en) * | 1984-03-14 | 1985-10-01 | Ricoh Co Ltd | Electrophotographic sensitive body |
-
1986
- 1986-05-16 JP JP11061186A patent/JPS62267747A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57146257A (en) * | 1981-03-04 | 1982-09-09 | Ricoh Co Ltd | Composite electrophotographic receptor |
| JPS5971057A (en) * | 1982-10-18 | 1984-04-21 | Nippon Telegr & Teleph Corp <Ntt> | Electrophotogaphic receptor |
| JPS60172045A (en) * | 1984-02-16 | 1985-09-05 | Konishiroku Photo Ind Co Ltd | Photosensitive body |
| JPS60172044A (en) * | 1984-02-16 | 1985-09-05 | Konishiroku Photo Ind Co Ltd | Preparation of photosensitive body |
| JPS60192950A (en) * | 1984-03-14 | 1985-10-01 | Ricoh Co Ltd | Electrophotographic sensitive body |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0411532A2 (en) * | 1989-08-01 | 1991-02-06 | Mitsubishi Chemical Corporation | Electrophotographic photoreceptor |
| US5763126A (en) * | 1995-06-01 | 1998-06-09 | Sharp Kabushiki Kaisha | Electrophotographic photoreceptor and production process for same |
| EP0754977A1 (en) * | 1995-07-07 | 1997-01-22 | Lexmark International, Inc. | Electrophotographic photoconductor having improved cycling stability and oil resistance |
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