JPH0550742B2 - - Google Patents
Info
- Publication number
- JPH0550742B2 JPH0550742B2 JP60119389A JP11938985A JPH0550742B2 JP H0550742 B2 JPH0550742 B2 JP H0550742B2 JP 60119389 A JP60119389 A JP 60119389A JP 11938985 A JP11938985 A JP 11938985A JP H0550742 B2 JPH0550742 B2 JP H0550742B2
- Authority
- JP
- Japan
- Prior art keywords
- drying
- photosensitive layer
- organic photoreceptor
- dried
- drum
- 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
Links
- 238000001035 drying Methods 0.000 claims description 25
- 108091008695 photoreceptors Proteins 0.000 claims description 22
- 238000000034 method Methods 0.000 claims description 6
- 229920003227 poly(N-vinyl carbazole) Polymers 0.000 claims description 2
- 150000007857 hydrazones Chemical class 0.000 claims 1
- 150000003219 pyrazolines Chemical class 0.000 claims 1
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 description 2
- 239000011810 insulating material Substances 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- -1 dimethylphenyl Chemical group 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- FVDOBFPYBSDRKH-UHFFFAOYSA-N perylene-3,4,9,10-tetracarboxylic acid Chemical compound C=12C3=CC=C(C(O)=O)C2=C(C(O)=O)C=CC=1C1=CC=C(C(O)=O)C2=C1C3=CC=C2C(=O)O FVDOBFPYBSDRKH-UHFFFAOYSA-N 0.000 description 1
- 229920001225 polyester resin Polymers 0.000 description 1
- 239000004645 polyester resin Substances 0.000 description 1
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 1
- 230000032258 transport Effects 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
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Photoreceptors In Electrophotography (AREA)
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は、複写機用のドラムまたはシートに塗
布された有機感光体の乾燥方法に関する。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a method of drying an organic photoreceptor coated on a drum or sheet for a copying machine.
（従来の技術）
ドラムまたはシートに塗布された有機感光体
は、通常、熱風オーブンまたはヒーターを用いて
乾燥される。しかし、このような乾燥方法では、
感光層の表面のみが主として乾燥される。最初に
乾燥された表面部分には、膜が形成され、この膜
が熱の浸透を妨害する。その結果、感光層の内部
が乾燥されにくくなる。内部まで完全に乾燥させ
るには時間を要する。それゆえ、感光層の表面と
内部とで乾燥状態に違いが生じ、乾燥後の感光層
の表面に凹凸の生じる原因となる。また、ピンホ
ールまたは気泡が発生する原因にもなる。BACKGROUND OF THE INVENTION Organophotoreceptors coated on drums or sheets are typically dried using hot air ovens or heaters. However, with this drying method,
Mainly only the surface of the photosensitive layer is dried. A film forms on the surface area that is first dried, and this film impedes the penetration of heat. As a result, the inside of the photosensitive layer becomes difficult to dry. It takes time to completely dry the inside. Therefore, there is a difference in the drying state between the surface and the inside of the photosensitive layer, which causes unevenness on the surface of the photosensitive layer after drying. It can also cause pinholes or bubbles to form.
（発明が解決しようとする問題点）
本発明は、上記従来の問題点を解決するもので
あり、その目的とするところは、感光体の表面と
内部とが実質的に同時に乾燥され、その結果、短
時間で乾燥しうる有機感光体の乾燥方法を提供す
ることにある。本発明の他の目的は、ピンホール
または気泡の発生のない有機感光体の乾燥方法を
提供することにある。本発明のさらに他の目的
は、乾燥後の感光体の表面が平滑に保たれる有機
感光体の乾燥方法を提供することにある。(Problems to be Solved by the Invention) The present invention solves the above-mentioned conventional problems, and its purpose is to dry the surface and interior of the photoreceptor substantially simultaneously, and thereby An object of the present invention is to provide a method for drying an organic photoreceptor that can be dried in a short time. Another object of the present invention is to provide a method for drying an organic photoreceptor without generating pinholes or bubbles. Still another object of the present invention is to provide a method for drying an organic photoreceptor in which the surface of the photoreceptor after drying is kept smooth.
（問題点を解決するための手段）
本発明の有機感光体の乾燥方法は、ドラムまた
はシートに塗布された有機感光体を、波長が25〜
1000μｍの範囲である遠赤外ヒーターを用いて乾
燥することを包含しており、そのことにより上記
目的が達成される。ヒーターの出力は、乾燥され
る有機感光体の組成および感光層の厚さに応じて
決定される。(Means for Solving the Problems) The organic photoreceptor drying method of the present invention is characterized in that the organic photoreceptor coated on a drum or sheet is
It includes drying using a far infrared heater in the range of 1000 μm, thereby achieving the above objective. The output of the heater is determined depending on the composition of the organophotoreceptor to be dried and the thickness of the photosensitive layer.
このような、遠赤外ヒーターを用いることによ
り、感光層の表面と内部が実質的に同時乾燥され
る。感光層の表面と内部とで乾燥状態に違いが生
じることはない。したがつて、感光層は短時間で
乾燥される。しかも乾燥後も感光層の表面は平滑
に保たれる。気泡やピンホールの発明もない。 By using such a far-infrared heater, the surface and interior of the photosensitive layer are substantially simultaneously dried. There is no difference in the drying state between the surface and inside of the photosensitive layer. Therefore, the photosensitive layer is dried in a short time. Furthermore, the surface of the photosensitive layer remains smooth even after drying. There was no invention of bubbles or pinholes.
本発明に用いられる遠赤外ヒーターは、例え
ば、第１図および第２図に示すように、ドラム２
をその軸のまわりに回転させつつ搬送するコンベ
アベルト３の両側に配置される。ドラム２には有
機感光体が塗布されている。ヒーター１はコンベ
アベルト３の面に垂直に立設され、断熱材４によ
り固定されている。ヒーター１の長さは、少なく
ともドラム２の軸方向の長さより長くされる。 The far-infrared heater used in the present invention has a drum 2, for example, as shown in FIGS. 1 and 2.
They are placed on both sides of the conveyor belt 3, which transports the conveyor belt while rotating it around its axis. The drum 2 is coated with an organic photoreceptor. The heater 1 is installed perpendicularly to the surface of the conveyor belt 3 and is fixed by a heat insulating material 4. The length of the heater 1 is made longer than at least the length of the drum 2 in the axial direction.
（実施例） 以下に本発明を実施例について述べる。(Example) The present invention will be described below with reference to examples.
次のような組成の有機感光体を調製した。 An organic photoreceptor having the following composition was prepared.
Ｎ，N′−ジ（３・５−１ジメチルフエニル）ペ
リレン−３・４・９・10−テトラカルボン酸ジミ
イド ８重量部
ポリ−Ｎ−ビニルカルバゾール 100重量部
ポリエステル樹脂 10重量部
テトラヒドロフラン 200重量部
この有機感光体を円筒状アルミニウムドラム
（120mmφ×340mm、肉厚５mm）の表面に12μｍの
厚さに塗布した。感光体の塗布されたドラムを、
第１図および第２図に示すような装置を用い、
30μｍの遠赤外ヒーターにより乾燥した。乾燥中
において、ドラムの感光層の表面およびドラムの
内面の温度を非接触温度測定器（日本電子KK
製、サーモビユアー）を用いて測定した。その結
果を第３図に示す。第３図から、感光層の温度
は、その表面と裏面とでほとんどずれがなく、感
光層が均一に乾燥されていることが明らかであ
る。感光層の乾燥は約20分で完了した。乾燥後の
感光層の表面は平滑であり、気泡やピンホールの
発生は認められなかつた。N,N'-di(3,5-1 dimethylphenyl)perylene-3,4,9,10-tetracarboxylic acid dimide 8 parts by weight Poly-N-vinylcarbazole 100 parts by weight Polyester resin 10 parts by weight Tetrahydrofuran 200 parts by weight This organic photoreceptor was applied to a thickness of 12 μm on the surface of a cylindrical aluminum drum (120 mmφ×340 mm, wall thickness 5 mm). The drum coated with photoreceptor is
Using the apparatus shown in Figs. 1 and 2,
It was dried using a 30 μm far infrared heater. During drying, the temperature of the surface of the photosensitive layer and the inner surface of the drum was measured using a non-contact temperature measuring device (JEOL KK).
Measurements were made using a Thermoviewer (manufactured by Thermoviewer, Inc.). The results are shown in FIG. From FIG. 3, it is clear that there is almost no difference in the temperature of the photosensitive layer between its front and back surfaces, and that the photosensitive layer is dried uniformly. Drying of the photosensitive layer was completed in about 20 minutes. The surface of the photosensitive layer after drying was smooth, and no bubbles or pinholes were observed.
比較例
乾燥手段として遠赤外ヒーターの代わりに熱風
オーブンを用いたこと以外は、実施例と同様にし
て、有機感光体を乾燥した。実施例と同じく感光
層の表面および裏面の温度を測定した。その結果
を第３図に示す。第３図から明らかなように、乾
燥開始10分後には、感光層の表面の温度と裏面の
温度との間に50℃程度の差が生じた。このことか
ら、感光層が表面から不均一に乾燥されているこ
とが明らかである。しかも感光層の完全な乾燥に
は約30分を要した。乾燥後の感光層の表面には凹
凸があり、気泡やピンホールの発生も認められ
た。Comparative Example An organic photoreceptor was dried in the same manner as in Example except that a hot air oven was used instead of a far-infrared heater as the drying means. The temperatures of the front and back surfaces of the photosensitive layer were measured in the same manner as in the examples. The results are shown in FIG. As is clear from FIG. 3, 10 minutes after the start of drying, there was a difference of about 50° C. between the temperature on the front surface and the temperature on the back surface of the photosensitive layer. From this, it is clear that the photosensitive layer is dried non-uniformly from the surface. Moreover, it took about 30 minutes to completely dry the photosensitive layer. The surface of the photosensitive layer after drying was uneven, and bubbles and pinholes were also observed.
（発明の効果）
本発明によれば、このように、有機感光体が短
時間で乾燥される。乾燥中において気泡やピンホ
ールの発明もない。しかも乾燥後の感光体の表面
は平滑である。その結果、この有機感光体を用い
て、鮮明な電子写真が得られる。(Effects of the Invention) According to the present invention, an organic photoreceptor can be dried in a short time in this way. There are no bubbles or pinholes during drying. Moreover, the surface of the photoreceptor after drying is smooth. As a result, clear electrophotographs can be obtained using this organic photoreceptor.
第１図は本発明の有機感光体の乾燥方法に用い
られる装置の一実施例を示す平面図、第２図は第
１図の装置の側面図、第３図は本発明の実施例お
よび比較例における乾燥時間と感光層の温度との
関係を示すグラフである。
１……遠赤外ヒーター、２……有機感光体ドラ
ム、３……コンベアベルト、４……断熱材。
FIG. 1 is a plan view showing an embodiment of the apparatus used in the organic photoreceptor drying method of the present invention, FIG. 2 is a side view of the apparatus shown in FIG. 1, and FIG. 3 is an example of the present invention and a comparison thereof. 3 is a graph showing the relationship between drying time and temperature of a photosensitive layer in an example. 1...Far-infrared heater, 2...Organic photoreceptor drum, 3...Conveyor belt, 4...Insulating material.
Claims (1)
を、波長が25〜1000μｍの範囲である遠赤外ヒー
ターを用いて乾燥することを包含する有機感光体
の乾燥方法。 ２ 前記有機感光体が、ポリビニルカルバゾー
ル、ピラゾリン系誘導体およびヒドラゾン系誘導
体のうちの少なくとも一種である特許請求の範囲
第１項に記載の有機感光体の乾燥方法。[Scope of Claims] 1. A method for drying an organic photoreceptor, which includes drying the organic photoreceptor coated on a drum or sheet using a far-infrared heater having a wavelength in the range of 25 to 1000 μm. 2. The method for drying an organic photoreceptor according to claim 1, wherein the organic photoreceptor is at least one of polyvinylcarbazole, a pyrazoline derivative, and a hydrazone derivative.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11938985A JPS61277958A (en) | 1985-05-31 | 1985-05-31 | Drying method for organic photosensitive body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11938985A JPS61277958A (en) | 1985-05-31 | 1985-05-31 | Drying method for organic photosensitive body |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61277958A JPS61277958A (en) | 1986-12-08 |
| JPH0550742B2 true JPH0550742B2 (en) | 1993-07-29 |
Family
ID=14760288
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11938985A Granted JPS61277958A (en) | 1985-05-31 | 1985-05-31 | Drying method for organic photosensitive body |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61277958A (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10038895B4 (en) * | 2000-08-09 | 2006-04-06 | Advanced Photonics Technologies Ag | Method and use of a device for producing a semiconductive and / or electroluminescent organic layer structure |
| DE10153445A1 (en) * | 2001-10-30 | 2003-05-22 | Covion Organic Semiconductors | drying process |
| JP4180562B2 (en) | 2004-12-09 | 2008-11-12 | シャープ株式会社 | Method for producing electrophotographic photoreceptor and method for drying coating film |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58178360A (en) * | 1982-04-13 | 1983-10-19 | Canon Inc | Manufacture of electrophotographic receptor |
-
1985
- 1985-05-31 JP JP11938985A patent/JPS61277958A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58178360A (en) * | 1982-04-13 | 1983-10-19 | Canon Inc | Manufacture of electrophotographic receptor |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS61277958A (en) | 1986-12-08 |
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