JPH04260047A - Production of seamnless belt photosensitive material - Google Patents
Production of seamnless belt photosensitive materialInfo
- Publication number
- JPH04260047A JPH04260047A JP3022209A JP2220991A JPH04260047A JP H04260047 A JPH04260047 A JP H04260047A JP 3022209 A JP3022209 A JP 3022209A JP 2220991 A JP2220991 A JP 2220991A JP H04260047 A JPH04260047 A JP H04260047A
- Authority
- JP
- Japan
- Prior art keywords
- coating
- seamless belt
- photoreceptor
- shape
- photosensitive material
- 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
- 239000000463 material Substances 0.000 title claims abstract description 11
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 8
- 238000000576 coating method Methods 0.000 claims abstract description 44
- 239000011248 coating agent Substances 0.000 claims abstract description 37
- 108091008695 photoreceptors Proteins 0.000 claims description 22
- 238000000034 method Methods 0.000 claims description 6
- 239000007788 liquid Substances 0.000 description 8
- 238000002347 injection Methods 0.000 description 4
- 239000007924 injection Substances 0.000 description 4
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 238000003618 dip coating Methods 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- QSNAVZQFIDCTQI-UHFFFAOYSA-N 1,2,3-trinitro-9h-fluorene Chemical compound C1=CC=C2C(C=C(C(=C3[N+]([O-])=O)[N+]([O-])=O)[N+](=O)[O-])=C3CC2=C1 QSNAVZQFIDCTQI-UHFFFAOYSA-N 0.000 description 1
- WUPHOULIZUERAE-UHFFFAOYSA-N 3-(oxolan-2-yl)propanoic acid Chemical compound OC(=O)CCC1CCCO1 WUPHOULIZUERAE-UHFFFAOYSA-N 0.000 description 1
- 229910052980 cadmium sulfide Inorganic materials 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000007765 extrusion coating Methods 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 239000002985 plastic film Substances 0.000 description 1
- 229920003227 poly(N-vinyl carbazole) Polymers 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920005596 polymer binder Polymers 0.000 description 1
- 239000002491 polymer binding agent Substances 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000011787 zinc oxide Substances 0.000 description 1
Landscapes
- Photoreceptors In Electrophotography (AREA)
Abstract
Description
【０００１】0001
【産業上の利用分野】本発明は、電子写真用などのシー
ムレスベルト感光体の製造方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of manufacturing a seamless belt photoreceptor for use in electrophotography.
【０００２】0002
【従来の技術】電子写真用感光体としては、アルミニウ
ム製などの中空ドラムタイプのものと、アルミニウムな
どの金属を蒸着したポリエステルなどのプラスチックシ
ートのシームレスベルトタイプのものがある。2. Description of the Related Art Photoreceptors for electrophotography include hollow drum type ones made of aluminum or the like, and seamless belt type ones made of plastic sheets such as polyester on which metals such as aluminum are vapor-deposited.
【０００３】一方、中空ドラムタイプの場合、その外面
上に感光液を塗布し電子写真感光体を製造するための塗
布方法としては、スプレー塗布法、浸漬塗布法、ブレー
ド塗布法、ロール塗布法、およびスライドホッパー塗布
法などが知られている。On the other hand, in the case of a hollow drum type, coating methods for manufacturing an electrophotographic photoreceptor by coating the outer surface of the photosensitive liquid include spray coating method, dip coating method, blade coating method, roll coating method, Also known are the slide hopper coating method and the like.
【０００４】しかし、スプレー塗布法では、スプレーガ
ンより噴出された感光液が被塗布物の外面上に到達する
前に溶剤が蒸発するために、乾燥固化した粒子が表面に
付着し、平滑性のよい塗布表面が得られずかつ膜厚の制
御も難しい。また、ブレード塗布法およびロール塗布法
は、塗布液の粘性により均一な塗膜が得られない欠点が
ある。さらに、浸漬塗布法は、上記の塗布表面の平滑性
、塗布膜の均一性の難点については改良されるが、膜厚
の制御が塗布液の物性と塗布速度に支配される。従って
、塗布液の調整が非常に重要になるが、この調整は実際
的に著しく困難であり、また塗布速度も遅く生産性が悪
い欠点がある。However, in the spray coating method, the solvent evaporates before the photosensitive liquid ejected from the spray gun reaches the outer surface of the object to be coated, resulting in dried and solidified particles adhering to the surface, which deteriorates the smoothness. It is difficult to obtain a good coating surface and it is difficult to control the film thickness. Further, the blade coating method and the roll coating method have the disadvantage that a uniform coating film cannot be obtained due to the viscosity of the coating liquid. Furthermore, although the dip coating method improves the above-mentioned difficulties in the smoothness of the coating surface and the uniformity of the coating film, control of the film thickness is governed by the physical properties of the coating liquid and the coating speed. Therefore, it is very important to adjust the coating liquid, but this adjustment is extremely difficult in practice, and the coating speed is also slow, resulting in poor productivity.
【０００５】この点、環状塗布手段、たとえばスライド
ホッパー型塗布装置を用いると、生産性が高く、かつ膜
厚制御が容易となるなどの種々の利点がある。In this regard, the use of an annular coating means, such as a slide hopper type coating device, has various advantages such as high productivity and easy control of film thickness.
【０００６】[0006]
【発明が解決しようとする課題】しかしながら、シーム
レスベルト型感光体の製造に際して、スライドホッパー
型塗布装置を用いようとしても、シームレスベルトが可
撓性であるために環状塗布装置内において形状保持を行
うことができず、従来、シームレスベルト型に対しては
採用されていない。[Problems to be Solved by the Invention] However, even if a slide hopper type coating device is used in the production of a seamless belt type photoreceptor, the seamless belt is flexible and therefore retains its shape within the annular coating device. Therefore, it has not been used for seamless belt type.
【０００７】したがって、本発明の課題は、シームレス
ベルト型感光体の製造に際して、生産性が高く、膜厚が
均一となるなどの利点をもたらす環状塗布方式を適用す
ることにある。[0007] Therefore, an object of the present invention is to apply an annular coating method that provides advantages such as high productivity and uniform film thickness when manufacturing a seamless belt type photoreceptor.
【０００８】[0008]
【課題を解決するための手段】上記課題は、周方向に無
端状の可撓性シームレスベルトの内部に外面円柱状の形
状保持体を挿入した状態で感光体塗布用環状塗布手段内
を連続的に移動させる過程で感光体形成材料を連続的に
塗布することで解決できる。[Means for Solving the Problems] The above-mentioned problem is solved by continuously coating an annular coating means for coating a photoreceptor with a shape-retaining body having a cylindrical outer surface inserted inside a flexible seamless belt that is endless in the circumferential direction. This can be solved by continuously applying the photoreceptor forming material during the process of moving the photoreceptor.
【０００９】[0009]
【作用】本発明では、周方向に無端状の可撓性シームレ
スベルトの内部に外面円柱状の形状保持体を挿入した状
態で感光体塗布用環状塗布手段内を連続的に移動させる
過程で感光体形成材料を連続的に塗布するようにしたか
ら、シームレスベルト全体の形状、したがって所期の外
周面形状に規制でき、環状塗布手段による塗布を行うこ
とができる。[Operation] In the present invention, in the process of continuously moving a shape-retaining member having a cylindrical outer surface inside a circumferentially endless flexible seamless belt, the photoreceptor is moved within an annular coating means for coating a photoreceptor. Since the body-forming material is applied continuously, the shape of the entire seamless belt, and hence the desired shape of the outer peripheral surface, can be controlled, and the application can be performed using an annular application means.
【００１０】0010
【実施例】以下本発明を図面に基づきさらに具体的に説
明する。DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be explained in more detail below with reference to the drawings.
【００１１】図１において、１は周方向に無端状の可撓
性シームレスベルトで、その内部に外面円柱状の形状保
持体２が挿入され、シームレスベルト１の形状が円筒形
に保持される。この形状保持がなされたシームレスベル
ト１は順次長手方向に連設されながら感光体塗布用環状
塗布装置３内に連続的に挿入され、連続的に上方に移動
させる過程で環状塗布装置３から感光体形成材料が連続
的に塗布される。塗布が終了すると、形状保持体２はシ
ームレスベルト１から除去される。In FIG. 1, reference numeral 1 denotes a circumferentially endless flexible seamless belt, into which a shape-retaining body 2 having a cylindrical outer surface is inserted to maintain the shape of the seamless belt 1 in a cylindrical shape. The seamless belt 1 whose shape has been maintained is successively inserted into the annular coating device 3 for coating the photoreceptor while being arranged in a longitudinal direction, and in the process of being continuously moved upward, the seamless belt 1 is transferred from the annular coating device 3 to the photoreceptor. Forming material is applied continuously. When the application is completed, the shape retaining body 2 is removed from the seamless belt 1.
【００１２】前記形状保持体２としては、たとえば図２
に示されているように、金属製の注入口金２０にゴムな
どの可撓性チューブ２１を取り付けたものとすることが
できる。注入口金２０には、開閉弁２３を有する注入短
管２４を固定しておく。[0012] As the shape retaining body 2, for example, as shown in FIG.
As shown in FIG. 2, a flexible tube 21 made of rubber or the like may be attached to a metal injection port 20. A short injection pipe 24 having an on-off valve 23 is fixed to the injection nozzle 20 .
【００１３】かかる形状保持体２の使用に際しては、（
Ｂ）の段階に示されているように、可撓性チューブ２１
が収縮した状態でシームレスベルト１内に挿入した後、
注入短管２４を介してコンプレッサー３０から可撓性チ
ューブ２１内にエアを注入しこれを膨出させる。可撓性
チューブ２１の膨出によりシームレスベルト１が拡径し
円筒形に規制する。その後、（Ｃ）に示されているよう
に、可撓性チューブ２１の膨出状態で開閉弁２３を閉じ
る。次いで、これを環状塗布装置３内に挿入して前述の
ように感光体の塗布を行う。塗布が終了したならば、（
Ｄ）に示されているように、開閉弁２３を開けて可撓性
チューブ２１内のエアを流出させ、可撓性チューブ２１
を収縮させ、形状保持体２を感光体製造済シームレスベ
ルト１から取り除く。この形状保持体２は再利用に供す
る。[0013] When using such a shape-retaining body 2, (
As shown in step B), the flexible tube 21
After inserting into the seamless belt 1 in a contracted state,
Air is injected into the flexible tube 21 from the compressor 30 via the injection short pipe 24 to cause it to swell. Due to the expansion of the flexible tube 21, the seamless belt 1 expands in diameter and is restricted to a cylindrical shape. Thereafter, as shown in (C), the on-off valve 23 is closed with the flexible tube 21 in the expanded state. Next, this is inserted into the annular coating device 3 and the photoreceptor is coated as described above. Once the application is complete, (
As shown in D), open the on-off valve 23 to let the air in the flexible tube 21 flow out, and
is shrunk, and the shape-retaining body 2 is removed from the photoreceptor-fabricated seamless belt 1. This shape-retaining body 2 is provided for reuse.
【００１４】本発明において、形状保持体としては、単
に円筒体などでもよい。また、環状塗布手段としては、
環状スライドホッパー型押出し塗布装置を良好に使用で
きるが、特開昭６２−８３０６５号公報に開示されてい
るように、押出しを行うことなく、被塗布物の移動によ
り、塗布液が同伴して被塗布物に塗布される形式のもの
でもよい。In the present invention, the shape retaining body may simply be a cylindrical body. In addition, as an annular application means,
An annular slide hopper type extrusion coating device can be used satisfactorily, but as disclosed in JP-A No. 62-83065, the coating liquid is entrained and coated due to the movement of the object without extrusion. It may also be of a type applied to a coating material.
【００１５】感光体としては、電子写真用感光体を製造
する場合において公知のものをそのまま用いることがで
きる。感光液としては、酸化亜鉛や硫化カドミウム等の
無機感光材料、ポリビニルカルバゾールとトリニトロフ
ルオレン等の有機感光材料を高分子バインダーに分散さ
せたものなどを用いることができる。また近年、高感度
化、耐久性向上のために、電荷発生層と電荷輸送層を積
層した機能分離型感光層を製造することに用いることも
できる。感光体が複数層により形成される場合には、前
記の環状塗布装置３の上方にさらに異なる塗布液を塗布
するための別の１種または２種以上の環状塗布装置を配
設できる。感光体は下引き層や電気発生層を有する場合
もある。As the photoreceptor, any known photoreceptor can be used as is in the production of an electrophotographic photoreceptor. As the photosensitive liquid, an inorganic photosensitive material such as zinc oxide or cadmium sulfide, or an organic photosensitive material such as polyvinylcarbazole and trinitrofluorene dispersed in a polymer binder can be used. In addition, in recent years, in order to increase sensitivity and improve durability, it can also be used to produce a functionally separated photosensitive layer in which a charge generation layer and a charge transport layer are laminated. When the photoreceptor is formed of a plurality of layers, one or more types of annular coating devices may be provided above the annular coating device 3 for applying different coating liquids. The photoreceptor may also have a subbing layer or an electrogenerating layer.
【００１６】[0016]
【発明の効果】以上の通り、本発明によれば、シームレ
スベルトに対しても環状塗布が可能となり、連続塗布に
よって生産性を高めることができるとともに、均一な塗
膜を得ることができるなどの利点がもたらされる。[Effects of the Invention] As described above, according to the present invention, circular coating is possible even on seamless belts, productivity can be increased by continuous coating, and a uniform coating film can be obtained. benefits are provided.
【図１】本発明の実施例の模式的縦断面図である。FIG. 1 is a schematic vertical cross-sectional view of an embodiment of the present invention.
【図２】本発明の形状保持体の使用例を工程順に示す概
要図である。FIG. 2 is a schematic diagram showing an example of use of the shape retaining body of the present invention in the order of steps.
１ シームレスベルト ２ 形状保持体 ３ 環状塗布装置 1 Seamless belt 2 Shape retaining body 3 Annular coating device
Claims (2)
の内部に外面円柱状の形状保持体を挿入した状態で感光
体塗布用環状塗布手段内を連続的に移動させる過程で感
光体形成材料を連続的に塗布することを特徴とするシー
ムレスベルト感光体の製造方法。[Claim 1] A photoreceptor is formed in a process in which a shape-retaining member having a cylindrical outer surface is inserted into a circumferentially endless flexible seamless belt and is continuously moved within an annular coating means for coating the photoreceptor. A method for manufacturing a seamless belt photoreceptor, characterized by continuously applying a material.
方向に膨縮可能とされ、塗布が終了した使用済の場合、
前記外周面を収縮させて当該シームレスベルト感光体か
ら抜取り、これを新たなシームレスベルト内の挿入して
その新たなシームレスベルトの形状保持用に用いる請求
項１記載の方法。2. At least the outer circumferential surface of the shape-retaining member is expandable and contractible in the radial direction, and when the shape-retaining member is used and has been coated,
2. The method according to claim 1, wherein the outer circumferential surface is shrunk and extracted from the seamless belt photoreceptor, and is inserted into a new seamless belt to maintain the shape of the new seamless belt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3022209A JPH04260047A (en) | 1991-02-15 | 1991-02-15 | Production of seamnless belt photosensitive material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3022209A JPH04260047A (en) | 1991-02-15 | 1991-02-15 | Production of seamnless belt photosensitive material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH04260047A true JPH04260047A (en) | 1992-09-16 |
Family
ID=12076409
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3022209A Pending JPH04260047A (en) | 1991-02-15 | 1991-02-15 | Production of seamnless belt photosensitive material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH04260047A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5844201A (en) * | 1981-09-02 | 1983-03-15 | ウエスチングハウス・エレクトリツク・コーポレーシヨン | Blade for turbine rotor |
| JPS60189183A (en) * | 1984-03-08 | 1985-09-26 | 富士高分子工業株式会社 | Anisotropic conductor composite material and method of producing same |
-
1991
- 1991-02-15 JP JP3022209A patent/JPH04260047A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5844201A (en) * | 1981-09-02 | 1983-03-15 | ウエスチングハウス・エレクトリツク・コーポレーシヨン | Blade for turbine rotor |
| JPS60189183A (en) * | 1984-03-08 | 1985-09-26 | 富士高分子工業株式会社 | Anisotropic conductor composite material and method of producing same |
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