JPS63278063A - Continuous production of photosensitive drum - Google Patents
Continuous production of photosensitive drumInfo
- Publication number
- JPS63278063A JPS63278063A JP11167087A JP11167087A JPS63278063A JP S63278063 A JPS63278063 A JP S63278063A JP 11167087 A JP11167087 A JP 11167087A JP 11167087 A JP11167087 A JP 11167087A JP S63278063 A JPS63278063 A JP S63278063A
- Authority
- JP
- Japan
- Prior art keywords
- photoreceptor drum
- photoreceptor
- hole
- pipe
- tube
- 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.)
- Granted
Links
- 238000010924 continuous production Methods 0.000 title 1
- 239000011248 coating agent Substances 0.000 claims abstract description 28
- 238000000576 coating method Methods 0.000 claims abstract description 28
- 239000007788 liquid Substances 0.000 claims abstract description 19
- 238000005192 partition Methods 0.000 claims abstract description 17
- 239000011247 coating layer Substances 0.000 claims abstract description 4
- 108091008695 photoreceptors Proteins 0.000 claims description 52
- 238000000034 method Methods 0.000 claims description 14
- 238000007654 immersion Methods 0.000 claims description 11
- 238000004519 manufacturing process Methods 0.000 claims description 11
- 239000000463 material Substances 0.000 claims description 10
- 238000001125 extrusion Methods 0.000 claims description 5
- 238000007598 dipping method Methods 0.000 abstract description 9
- 239000010410 layer Substances 0.000 abstract description 7
- 230000015572 biosynthetic process Effects 0.000 abstract 1
- 229920005989 resin Polymers 0.000 description 14
- 239000011347 resin Substances 0.000 description 14
- 229920001187 thermosetting polymer Polymers 0.000 description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
- 229910052799 carbon Inorganic materials 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- PAYRUJLWNCNPSJ-UHFFFAOYSA-N Aniline Chemical compound NC1=CC=CC=C1 PAYRUJLWNCNPSJ-UHFFFAOYSA-N 0.000 description 2
- 229920000877 Melamine resin Polymers 0.000 description 2
- 239000004640 Melamine resin Substances 0.000 description 2
- 239000005011 phenolic resin Substances 0.000 description 2
- -1 polyethylene Polymers 0.000 description 2
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 description 1
- 125000003903 2-propenyl group Chemical group [H]C([*])([H])C([H])=C([H])[H] 0.000 description 1
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 229920001807 Urea-formaldehyde Polymers 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 239000003431 cross linking reagent Substances 0.000 description 1
- 238000003618 dip coating Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 238000004898 kneading Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 229920001568 phenolic resin Polymers 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 229920005990 polystyrene resin Polymers 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 229920002050 silicone resin Polymers 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 229920005992 thermoplastic resin Polymers 0.000 description 1
- 229920006337 unsaturated polyester resin Polymers 0.000 description 1
- 239000008096 xylene Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G5/00—Recording members for original recording by exposure, e.g. to light, to heat, to electrons; Manufacture thereof; Selection of materials therefor
- G03G5/02—Charge-receiving layers
- G03G5/04—Photoconductive layers; Charge-generation layers or charge-transporting layers; Additives therefor; Binders therefor
- G03G5/05—Organic bonding materials; Methods for coating a substrate with a photoconductive layer; Inert supplements for use in photoconductive layers
- G03G5/0525—Coating methods
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、感光体ドラムの連続的製造方法に関する、詳
しくは、連続的に素管に均一な感光体塗層を有する感光
体ドラムを製造する方法に関する。Detailed Description of the Invention [Industrial Field of Application] The present invention relates to a method for continuously manufacturing a photoreceptor drum, and more particularly, to a method for continuously manufacturing a photoreceptor drum having a uniform photoreceptor coating layer on a blank tube. Regarding how to.
従来、感光体ドラムは、感光体層の基板となる素管を最
終の感光体ドラムの形状と同じ長さの短管としたのち、
その表面の平滑度やドラムの真直度等の精度を高いもの
とする加工を行った後にその上に感光体層を設けること
により製造されていた。Conventionally, photoreceptor drums have been manufactured by making the raw tube that serves as the substrate for the photoreceptor layer into a short tube with the same length as the final photoreceptor drum shape.
The drum was manufactured by processing the drum to improve its surface smoothness and the straightness of the drum, and then providing a photoreceptor layer thereon.
一方、感光体材料としては安価でしかも安全な有機感光
体材料の進歩が目覚ましく、有機感光体を必要に応じ適
当なバインダーとともに溶解或いは分散した塗液を素管
上に塗布するだけで優れた性能の感光体ドラムを作るこ
とが可能となっている。On the other hand, as photoreceptor materials, there has been remarkable progress in inexpensive and safe organic photoreceptor materials, and excellent performance can be achieved simply by applying a coating liquid in which the organic photoreceptor is dissolved or dispersed with an appropriate binder as needed onto the tube. It is now possible to make photoreceptor drums of
また、感光体ドラム用素管として充分な表面の平滑度、
真直度等を有する長い（実質的に無限の長亦を有する。In addition, the surface smoothness is sufficient for the raw tube for photoreceptor drums.
Long with straightness, etc. (has virtually infinite length.
）樹脂製の素管が得られるようになっている（例えば、
特開昭５９−１７８２３５号公報）。) It is now possible to obtain resin tubes (for example,
(Japanese Unexamined Patent Publication No. 178235/1983).
この樹脂製の素管は樹脂そのものをカーボン等を混練す
ることで導電性とすることが可能であり、上記を機感光
体材料と組み合わせることで安価に感光体ドラムを製造
することが期待される。This resin tube can be made conductive by kneading the resin itself with carbon, etc., and it is expected that by combining the above with photoreceptor materials, it will be possible to manufacture photoreceptor drums at low cost. .
しかしながら、単に比較的長い素管を用いて塗液を塗布
するのでは塗布の装置が大型化し、しかも操作が難しく
なるだけであり、工業的に実施してもあまり効果が得ら
れないという問題がある。However, simply applying the coating liquid using a relatively long raw tube increases the size of the coating equipment and makes it difficult to operate, so there is a problem that even if it is implemented industrially, it is not very effective. be.
また、素管の製造と同時に塗布しようとすると、通常行
われる浸漬法では、素管の引き上げ速度によって膜厚が
定まる為、素管の生産速度が変化すると感光体層の厚み
も変化するという問題がある。In addition, if coating is attempted at the same time as the production of the raw tube, there is a problem that the thickness of the photoreceptor layer will change as the production speed of the raw tube changes, as the film thickness is determined by the pulling speed of the raw tube in the commonly used dipping method. There is.
膜厚を制御する方法として表面張力を利用する方法が知
られている（特開昭６１−２００４４号公報）が、この
方法では連続的に塗布する際には適用できないという問
題がある。A method using surface tension is known as a method for controlling the film thickness (Japanese Patent Application Laid-Open No. 61-20044), but there is a problem that this method cannot be applied when coating continuously.
（問題点を解決するための手段〕
本発明者らは、上記問題点を解決する方法につき鋭意検
討した結果、特定の構造の浸漬槽を用いることで均一の
感光体層を形成しうろことを見出し、本発明を完成した
。(Means for Solving the Problems) As a result of intensive study on methods for solving the above problems, the inventors of the present invention have found that a uniform photoreceptor layer can be formed by using a dipping tank with a specific structure. The present invention has been completed.
即ち、本発明は底部に円筒状の感光体ドラム素管の外径
よりも僅かに大きい径の貫通孔を有する浸漬槽の内部に
感光体重液を入れ、感光体ドラム素管を浸漬槽底部の貫
通孔を通して相対的に鉛直上方に移動させながら感光体
塗層を形成して連続的に感光体ドラムを製造する方法に
おいて、浸漬槽に上部開口径が感光体ドラム素管よりも
やや大きく、底部貫通孔の径が感光体ドラム素管よりも
僅かに大きな円錐台状をした仕切環を感光体ドラム素管
と同軸にしかも塗液面の上下にわたるように設け、感光
体ドラム素管の移動速度に応じて該仕切環中の塗液面の
高さを調節して、塗膜の厚みを均一かつ連続的に調節す
ることを特徴とする感光体ドラムを連続的に製造する方
法である。That is, in the present invention, a photoreceptor heavy liquid is placed inside an immersion tank having a through hole at the bottom with a diameter slightly larger than the outer diameter of the cylindrical photoreceptor drum material tube, and the photoreceptor drum material tube is placed at the bottom of the immersion tank. In a method of continuously manufacturing a photoreceptor drum by forming a photoreceptor coating layer while moving it relatively vertically upward through a through hole, the dipping tank has an upper opening diameter slightly larger than the photoreceptor drum base tube, and a bottom part. A truncated cone-shaped partition ring with a through hole slightly larger in diameter than the photoreceptor drum tube is provided coaxially with the photoreceptor drum tube and extending above and below the coating liquid surface, thereby controlling the moving speed of the photoreceptor drum tube. This is a method for continuously manufacturing a photoreceptor drum, characterized in that the height of the coating liquid surface in the partition ring is adjusted according to the thickness of the coating film, thereby uniformly and continuously adjusting the thickness of the coating film.
本発明において、浸漬槽と感光体ドラム素管との関係、
即ち底部に円筒状の感光体ドラム素管の外径よりもわず
かに大径の貫通孔を有する浸漬槽の内部に感光体重液を
入れ、感光体ドラム素管を浸漬槽底部の貫通孔を通して
相対的に鉛直上方に移動することによって感光体塗液を
塗布するという点では従来公知の所謂デツプコート法と
１！領する。In the present invention, the relationship between the immersion tank and the photoreceptor drum tube,
That is, the photoreceptor heavy liquid is placed inside an immersion tank having a through hole at the bottom with a diameter slightly larger than the outer diameter of the cylindrical photoreceptor drum material tube, and the photoreceptor drum material tube is passed through the through hole at the bottom of the immersion tank and placed relative to the immersion tank. It is different from the conventionally known so-called dip coating method in that the photoconductor coating liquid is applied by moving vertically upward! take over.
本発明において重要なのは、該浸漬槽に小さい方の穴が
感光体ドラム素管の外径よりもやや大きい底辺に対して
平行な円錐台状の仕切環を感光体ドラム素管と同軸にし
かも塗液面の上下にわたるように設ける点にある。What is important in the present invention is that a truncated conical partition ring, the smaller hole of which is parallel to the base and whose smaller hole is slightly larger than the outer diameter of the photoreceptor drum material tube, is installed coaxially with the photoreceptor drum material tube and coated in the dipping bath. The point is that it is installed above and below the liquid level.
なお、ここで用いる仕切環は、第２図のａ、ｂに示すよ
うな形状のものであり、小さい方の穴の内径が、感光体
ドラム用素管の外径よりやや大きく、例えば、０．２〜
０．５−程度太き（、大きい方の穴の内径が４〜１〇−
程度大きいものであり、その高さはｌＯ〜１０１０Ｏｓ
程度であり、厚さは０．０１〜ｌ閣程度のものを用いる
のが一般的である。The partition ring used here has a shape as shown in a and b in FIG. .2～
About 0.5mm thick (the inner diameter of the larger hole is 4 to 10mm)
The height is 10~1010Os
Generally, a thickness of about 0.01 to 1 mm is used.
上述の仕切環を上下することで第１図の６で示す感光体
塗液液面における感光体ドラム素管と仕切環との隙間が
変わりそれにより感光体ドラム素管の浸漬槽に対する相
対的な移動速度の変化によって生ずる塗膜の厚みの変化
を補償することができる。By moving the partition ring up and down, the gap between the photoreceptor drum tube and the partition ring at the surface of the photoreceptor coating liquid shown by 6 in FIG. Changes in coating thickness caused by changes in travel speed can be compensated for.
本発明は好ましくは先端部に平滑部を有するスクリュー
を有する押し出し成形機を用いて連続的、に熱硬化性樹
脂を成形し、その成形物をそのまま素管として用い、こ
の上に連続的に感光体を塗布すれば良い。The present invention preferably involves continuously molding a thermosetting resin using an extrusion molding machine equipped with a screw having a smooth portion at the tip, using the molded product as it is as a raw tube, and continuously exposing the resin to light. Just apply it on your body.
この際、成形物を表面の平滑度とか、真直度とかと言っ
た感光体ドラム用の素管として重要な精度を有するもの
とするためには例えば、スクリューの平滑部において押
し出した後、自己形状を保持できる程度にまで賦形硬化
すること、そのため熱硬化性樹脂の種類に応じ押し出し
機での温度を設定することなどが重要である。At this time, in order to ensure that the molded product has surface smoothness and straightness, which are important as a raw tube for photoreceptor drums, for example, after extruding it on the smooth part of the screw, the self-shaping Therefore, it is important to shape and cure the thermosetting resin to a level that maintains the thermosetting resin, and to set the temperature in the extruder depending on the type of thermosetting resin.
ここで熱硬化性樹脂としては、フェノール樹脂、メラミ
ン樹脂、尿素樹脂、不飽和ポリエステル樹脂、エポキシ
樹脂、シリコン樹脂、アリル樹脂、キシレン樹脂、アニ
リン樹脂およびポリエチレン、ポリプロピレン樹脂、ポ
リスチレン樹脂、ポリ塩化ビニル樹脂等の熱可塑性樹脂
に架橋剤を加えたもの等が例示され、特にフェノール樹
脂、メラミン樹脂が好適に使用される。Examples of thermosetting resins include phenolic resin, melamine resin, urea resin, unsaturated polyester resin, epoxy resin, silicone resin, allyl resin, xylene resin, aniline resin, and polyethylene, polypropylene resin, polystyrene resin, and polyvinyl chloride resin. Examples include those obtained by adding a crosslinking agent to a thermoplastic resin such as, among others, phenol resin and melamine resin are particularly preferably used.
またこれらのものは素管の表面抵抗が１０”Ω１以下、
特に１０’Ω１以下であることが望ましく、そうするた
めカーボンをその種類にもよる力（全成形物中に３〜３
０ｗｔ％分散することが必要である。In addition, the surface resistance of these tubes is 10"Ω1 or less,
In particular, it is desirable that the resistance be less than 10'Ω1, and in order to do so, the force applied to the carbon depends on the type of carbon (3 to 3
It is necessary to disperse 0 wt%.
以下に本発明の方法を図面を用いて更に詳しく説明する
。The method of the present invention will be explained in more detail below using the drawings.
第１図は本発明の方法を実施するに好適な装置の１例の
概念図である。１は感光体ドラム素管を示し、２は浸漬
槽、３は感光体塗液が漏れないように素管と浸漬槽の間
に入れられる例えばＯ−リングのようなものである。４
は本発明において重要な仕切環であり、詳細を第２図に
示す、ａは断面図、ｂは斜視図である。５は感光体塗液
を示す。FIG. 1 is a conceptual diagram of an example of an apparatus suitable for carrying out the method of the present invention. Reference numeral 1 indicates a photoreceptor drum tube, 2 an immersion bath, and 3 an O-ring or the like inserted between the tube and the immersion bath to prevent the photoreceptor coating liquid from leaking. 4
2 is an important partition ring in the present invention, and its details are shown in FIG. 2, in which a is a cross-sectional view and b is a perspective view. 5 indicates a photoreceptor coating liquid.
第３図に押し出し成形機と組み合わせた時の１例を示す
、７は押し出し成形機であり、２は浸漬槽、４は仕切環
を示す、この図では仕切環は第１図とは逆に設けである
が、第１図の方向の方が広い範囲で制御できる。Figure 3 shows an example when combined with an extrusion molding machine. 7 is the extrusion molding machine, 2 is a dipping tank, and 4 is a partition ring. In this figure, the partition ring is opposite to that in Fig. 1. However, the direction shown in FIG. 1 allows control over a wider range.
外径６０閣で長さ１０００ｍの素管を用いて第１図の装
置で厚みが制御できることを確かめた。Using a raw pipe with an outer diameter of 60 mm and a length of 1000 m, we confirmed that the thickness could be controlled using the device shown in Figure 1.
浸漬槽は広い部分の内径が１２０閤、狭い部分が６２閣
であり、素管との隙間は０−リングで漏れを防止した。The wide part of the dipping tank has an inner diameter of 120 mm and the narrow part has an inner diameter of 62 mm, and the gap between it and the raw pipe is O-ring to prevent leakage.
この装置で塗液として１０ｗｔ％のポリエステル溶液を
用い、引き上げ速度を６０醜／ｓｉｎと５０鵬／ ｍ
ｌ ｎの２条件で塗布したところ、塗膜の厚さはそれぞ
れ４μ−と３μ−であり、ばらついてたが、この条件で
下端の穴の内径が６０．３閣および上端の穴の内径が６
５閣であり、高さが４０閣である仕切環を用い、塗液上
面での仕切環と素管との間隙をそれぞれ３論と０．５−
に変更したところ、塗膜の厚さはいずれも同じ４μ−で
あった。In this device, a 10wt% polyester solution was used as the coating liquid, and the pulling speed was set to 60/sin and 50/m.
When applied under two conditions, the thickness of the coating film was 4 μ- and 3 μ-, respectively, and varied, but under these conditions, the inner diameter of the hole at the bottom was 60.3 mm, and the inner diameter of the hole at the top was 60.3 mm. 6
Using a partition ring with a height of 5 cm and a height of 40 cm, the gap between the partition ring and the base pipe on the top surface of the coating liquid was set to 3 and 0.5, respectively.
When the coating was changed to , the thickness of the coating film was the same in both cases, 4 μ-.
本発明を実施することにより、感光体ドラムの感光体層
が均一な厚みのものが容易に連続的に製造でき、工業的
に極めて価値がある。By carrying out the present invention, a photoreceptor layer of a photoreceptor drum having a uniform thickness can be easily and continuously manufactured, which is extremely valuable industrially.
第１図は本発明の方法を実施するに好適の装置の１例を
示す概念図であり、第２図は仕切環の１例を示す断面お
よび斜視面であり、第３図は押し出し成形機と併用した
ときの１例の概念図である。FIG. 1 is a conceptual diagram showing an example of an apparatus suitable for carrying out the method of the present invention, FIG. 2 is a cross section and perspective view showing an example of a partition ring, and FIG. 3 is an extrusion molding machine. It is a conceptual diagram of an example when used together with.
Claims (1)
に大きい径の貫通孔を有する浸漬槽の内部に感光体塗液
を入れ、感光体ドラム素管を浸漬槽底部の貫通孔を通し
て相対的に鉛直上方に移動させながら感光体塗層を形成
して連続的に感光体ドラムを製造する方法において、浸
漬槽に上部開口径が感光体ドラム素管よりもやや大きく
、底部貫通孔の径が感光体ドラム素管よりも僅かに大き
な円錐台状をした仕切環を感光体ドラム素管と同軸にし
かも塗液面の上下にわたるように設け、感光体ドラム素
管の移動速度に応じて該仕切環中の塗液面の高さを調節
して、塗膜の厚みを均一かつ連続的に調節することを特
徴とする感光体ドラムを連続的に製造する方法。 ２、感光体ドラム素管を先端部に平滑部を有するスクリ
ューを有する押し出し成形機を用いて連続的に製造し、
引きつづき感光体塗液を連続的に塗布する特許請求の範
囲第１項記載の感光体ドラムを連続的に製造する方法。[Claims] 1. Pour the photoreceptor coating liquid into an immersion tank having a through hole at the bottom with a diameter slightly larger than the outer diameter of the cylindrical photoreceptor drum material tube, In a method of continuously manufacturing a photoreceptor drum by forming a photoreceptor coating layer while moving it relatively vertically upward through a through hole at the bottom of an immersion tank, the upper opening diameter of the immersion tank is larger than that of the photoreceptor drum base tube. A somewhat larger truncated conical partition ring with a diameter of the bottom through-hole slightly larger than that of the photoreceptor drum element tube is provided coaxially with the photoreceptor drum element tube and extending above and below the coating surface of the photoreceptor drum element. A method for continuously manufacturing a photoreceptor drum, characterized in that the thickness of the coating film is uniformly and continuously adjusted by adjusting the height of the coating liquid surface in the partition ring according to the moving speed of the tube. . 2. Continuously manufacture photoreceptor drum tubes using an extrusion molding machine equipped with a screw having a smooth portion at the tip,
A method for continuously manufacturing a photoreceptor drum according to claim 1, wherein a photoreceptor coating liquid is continuously applied.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11167087A JPH0823698B2 (en) | 1987-05-09 | 1987-05-09 | Continuous production method of photoreceptor drum |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11167087A JPH0823698B2 (en) | 1987-05-09 | 1987-05-09 | Continuous production method of photoreceptor drum |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63278063A true JPS63278063A (en) | 1988-11-15 |
| JPH0823698B2 JPH0823698B2 (en) | 1996-03-06 |
Family
ID=14567203
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11167087A Expired - Lifetime JPH0823698B2 (en) | 1987-05-09 | 1987-05-09 | Continuous production method of photoreceptor drum |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0823698B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01118140A (en) * | 1987-10-30 | 1989-05-10 | Sharp Corp | Device for manufacturing electrophotographic sensitive body |
-
1987
- 1987-05-09 JP JP11167087A patent/JPH0823698B2/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01118140A (en) * | 1987-10-30 | 1989-05-10 | Sharp Corp | Device for manufacturing electrophotographic sensitive body |
| JPH0545951B2 (en) * | 1987-10-30 | 1993-07-12 | Sharp Kk |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0823698B2 (en) | 1996-03-06 |
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