JPS62213872A - Coating apparatus - Google Patents
Coating apparatusInfo
- Publication number
- JPS62213872A JPS62213872A JP5615686A JP5615686A JPS62213872A JP S62213872 A JPS62213872 A JP S62213872A JP 5615686 A JP5615686 A JP 5615686A JP 5615686 A JP5615686 A JP 5615686A JP S62213872 A JPS62213872 A JP S62213872A
- Authority
- JP
- Japan
- Prior art keywords
- coating liquid
- coating
- coating solution
- distribution chamber
- supply pipe
- 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
- 238000000576 coating method Methods 0.000 title claims abstract description 121
- 239000011248 coating agent Substances 0.000 title claims abstract description 117
- 239000007788 liquid Substances 0.000 claims abstract description 80
- 230000002093 peripheral effect Effects 0.000 claims abstract description 8
- 230000007423 decrease Effects 0.000 claims abstract description 4
- 239000000758 substrate Substances 0.000 claims description 6
- 239000011247 coating layer Substances 0.000 abstract description 5
- 230000000704 physical effect Effects 0.000 abstract description 5
- 239000000463 material Substances 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 6
- 101700004678 SLIT3 Proteins 0.000 description 5
- 102100027339 Slit homolog 3 protein Human genes 0.000 description 5
- 108091008695 photoreceptors Proteins 0.000 description 5
- 239000010410 layer Substances 0.000 description 3
- 238000007598 dipping method Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 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
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000007766 curtain coating Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- RBTKNAXYKSUFRK-UHFFFAOYSA-N heliogen blue Chemical compound [Cu].[N-]1C2=C(C=CC=C3)C3=C1N=C([N-]1)C3=CC=CC=C3C1=NC([N-]1)=C(C=CC=C3)C3=C1N=C([N-]1)C3=CC=CC=C3C1=N2 RBTKNAXYKSUFRK-UHFFFAOYSA-N 0.000 description 1
- -1 polyethylene Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000008096 xylene Substances 0.000 description 1
Abstract
Description
【発明の詳細な説明】
（Ａ）産業上の利用分野
本発明は、塗布装置に関し、特に円筒形状体の外周面に
電子写真感光体を被覆するに適した塗布装置に関するも
のである。DETAILED DESCRIPTION OF THE INVENTION (A) Field of Industrial Application The present invention relates to a coating device, and particularly to a coating device suitable for coating the outer peripheral surface of a cylindrical body with an electrophotographic photoreceptor.
（Ｂ）従来技術及びその問題点
円筒形状体のような被塗布基材の円外周面上に塗布材を
被覆する方法としてはスプレー法、浸漬法、リング状液
体容器を用いる垂直型塗布法、カーテン塗布法、ブレー
ド塗布法、ロール塗布法、エクストルジョン法等の種々
の方法が知られている。しかし、スプレー法は量産性に
優れている反面、１回当りの塗布量が少ないこと、また
、表面平滑性が劣るという欠点があり、１１ＩＩｔ〜数
十周の広い範囲の膜厚と極めて高い表面平滑性の塗布層
が必要な電子写真感光体の塗布法としては適していない
。(B) Prior art and its problems Methods for coating the outer peripheral surface of a substrate to be coated, such as a cylindrical body, include a spray method, a dipping method, a vertical coating method using a ring-shaped liquid container, Various methods are known, such as a curtain coating method, a blade coating method, a roll coating method, and an extrusion method. However, while the spray method is excellent in mass production, it has the disadvantages of a small amount of coating per application and poor surface smoothness, and it has a wide range of film thickness from 11IIt to several tens of laps and an extremely high surface. It is not suitable as a coating method for electrophotographic photoreceptors that require a smooth coating layer.
浸漬法は、比較的手軽な方法であるが、円筒形状体の上
部と下部とで膜厚の差が大きいこと、また２層以上の塗
布を行う場合に各層の塗布を同一溶剤系で行うと下層が
おかされるという欠点が生じ易い。The dipping method is a relatively simple method, but there is a large difference in film thickness between the upper and lower parts of the cylindrical body, and when coating two or more layers, it is difficult to coat each layer with the same solvent system. The disadvantage is that the lower layer is easily damaged.
このように円筒形状体の外周面上に電子写真感光体を塗
布する方法としての前記従来法は、いずれも表面平滑性
が劣る、塗布液の物性が制限される、量産性に乏しい等
の何らかの欠点を少なくとも一つは有するものであった
。In this way, the conventional methods for coating an electrophotographic photoreceptor on the outer peripheral surface of a cylindrical body all have problems such as poor surface smoothness, limited physical properties of the coating liquid, and poor mass productivity. It had at least one drawback.
（Ｃ）発明の目的
本発明の目的は広い範囲の膜厚と極めて高い表面平滑性
の塗布層をその塗布液の物性に制限されることなく得る
ことができる。筒基材の円外周面上に電子写真感光体を
被覆するに適した塗布装置を提供することである。(C) Object of the Invention The object of the present invention is to be able to obtain a coating layer with a wide range of thicknesses and extremely high surface smoothness without being limited by the physical properties of the coating solution. An object of the present invention is to provide a coating device suitable for coating an electrophotographic photoreceptor on the circumferential surface of a cylindrical base material.
（Ｄ）発明の構成
本発明は、被塗イ５基材の円外周面上に塗布液を塗布す
る装置であって、被塗布基材の円外周面上に塗布液を（
１）塗布液供給パイプ、（２）前記塗布液供給パイプに
少なくとも一箇所で接続し、被塗布基材の外周をとり囲
むように連続する塗布液分配室、（３）前記塗布液分配
室から被塗布基材の外周をとり囲むように連続してつな
がれた塗布液分配スリットを通じて塗布する装置におい
て、該塗布液分配室の垂直方向断面積が塗布液供給パイ
プ接続位置において、最大であり、該接続位置より離れ
るにしたがって、減少するようにしたことを特徴とする
塗布装置である。(D) Structure of the Invention The present invention is an apparatus for applying a coating liquid onto the circular outer circumferential surface of a base material to be coated, the apparatus comprising:
1) a coating liquid supply pipe; (2) a coating liquid distribution chamber connected to the coating liquid supply pipe at least at one point and continuous so as to surround the outer periphery of the substrate to be coated; (3) from the coating liquid distribution chamber. In a device that performs coating through coating liquid distribution slits connected continuously so as to surround the outer periphery of a substrate to be coated, the vertical cross-sectional area of the coating liquid distribution chamber is maximum at a position where the coating liquid supply pipe is connected; This coating device is characterized in that the amount decreases as the distance from the connection position increases.
以下図面を用いて本発明をざらに具体的に説明する。The present invention will be explained in detail below using the drawings.
第１図は、本発明の一興体例を示す塗布装置を用いて塗
布している状態の垂直断面図である。第２図、第３図は
それぞれ塗布液供給パイプが１コ及び２コの場合の塗布
装置における塗液分配室部の水平断面図を示している。FIG. 1 is a vertical cross-sectional view of a state in which coating is being applied using a coating device showing an example of the present invention. FIGS. 2 and 3 are horizontal cross-sectional views of the coating liquid distribution chamber in the coating apparatus when the number of coating liquid supply pipes is one and two, respectively.
又、第４図、第５図は塗布装置の垂直断面図である。4 and 5 are vertical sectional views of the coating device.
塗布液分配室２には塗布液４を供給する塗布液供給手段
として塗布液供給パイプ１を用いることが好ましく、塗
布液供給パイプは複数用いることもできる。It is preferable to use the coating liquid supply pipe 1 as a coating liquid supply means for supplying the coating liquid 4 to the coating liquid distribution chamber 2, and a plurality of coating liquid supply pipes may be used.
塗布液供給手段から供給された塗布液４は一旦塗布液分
配室２に溜められ、これに連結する塗布液分配スリット
３に塗布液４が均一に分配される。The coating liquid 4 supplied from the coating liquid supply means is temporarily stored in the coating liquid distribution chamber 2, and is uniformly distributed to the coating liquid distribution slit 3 connected thereto.
塗布液分配スリット３の幅は１０ｐｎ〜１０００ＩＩｎ
程度でよく、好ましくは約５０ＩＩｎ〜約５００ＩＩｎ
である。The width of the coating liquid distribution slit 3 is 10 pn to 1000 IIn.
about 50 IIn to about 500 IIn
It is.
塗布液分配スリット３に充満した塗布液４は流出口から
微小間隔、一般には０．０３〜１Ｍ程度の距離を保って
上に垂直移動する円筒形状体５の外周面上に塗布される
。塗布量は円筒形状体５の移動速度と塗布液供給手段で
の流量とで決まり、それらの設定によって所望とする広
範囲の塗布量を任意に塗布することが出来る。一般には
１〜１０Ｈ／分あるいはそれ以上の移動速度で塗布する
ことができる。The coating liquid 4 filling the coating liquid distribution slit 3 is applied onto the outer circumferential surface of a cylindrical body 5 that moves vertically upward while keeping a minute distance from the outlet, generally a distance of about 0.03 to 1 m. The amount of coating is determined by the moving speed of the cylindrical body 5 and the flow rate of the coating liquid supply means, and by setting these, it is possible to arbitrarily apply a desired coating amount over a wide range. Generally, coating can be performed at a moving speed of 1 to 10 H/min or more.
塗布液分配スリット３は好ましくはその流出口をほぼ水
平ないし約４５度の角度で上方に向けるように塗布液分
配室２と連続し、端部をもつことなく円筒形状体５の外
周をとり囲むように設けられている。塗布液分配室の形
状は、例えば特開昭６０−１４６２３７号公報、特開昭
６０−１７２３７８号公報等に記載されているような、
塗布液供給パイプに少なくとも一箇所で接続し、被塗布
基材の外周をとり囲むように連続する塗布液分配室で、
その垂直方向断面積が、各場所同一面積となっているの
が一般的である。しかるに、これらの場合には、塗布液
供給手段によって塗布液供給パイプを通過した塗布液は
、塗布液分配室内の該塗布液供給パイプとの接続位置よ
り離れるに従って液の流量の差を生じ、均一な塗布面を
安定して得難いという欠点がある。The coating liquid distribution slit 3 is preferably continuous with the coating liquid distribution chamber 2 with its outlet facing upward at an angle of about 45 degrees from approximately horizontal, and surrounds the outer periphery of the cylindrical body 5 without having an end. It is set up like this. The shape of the coating liquid distribution chamber is, for example, as described in JP-A-60-146237, JP-A-60-172378, etc.
A coating liquid distribution chamber connected to the coating liquid supply pipe at least at one point and continuous so as to surround the outer periphery of the substrate to be coated.
Generally, the vertical cross-sectional area is the same at each location. However, in these cases, the coating liquid that has passed through the coating liquid supply pipe by the coating liquid supplying means causes a difference in the flow rate of the liquid as it moves away from the connection position with the coating liquid supply pipe in the coating liquid distribution chamber, and is not uniform. The disadvantage is that it is difficult to consistently obtain a coated surface.
従って、本発明の塗布装置は塗布液分配室の垂直断面積
が塗布液供給パイプ接続位置において最大であり、該接
続位置より離れるにしたがって、減少するようにしてい
る。°その構造は、第４図に示すような塗布液分配室２
の内壁面と外壁面の間隔を一定とし、底面を塗布液供給
パイプ接続位置において最深底とし、該接続位置より離
れるにしたがって連続的に浅くした型式（縦方向変動型
）又は第５図に示すような塗布液分配室２の深さを一定
とし、該塗布液分配室の内壁面に対する外壁面の間隔を
塗布液供給パイプ接続位置において最大とし、該接続位
置より離れるにしたがって連続的に短縮させた型式（横
方向変動型）等があるが、これらに限定されない。又、
第２図は、塗布液供給パイプ１コを用いた場合の横方向
変動型塗布装置の塗布液分配室部の水平断面図を示して
いる。Therefore, in the coating device of the present invention, the vertical cross-sectional area of the coating liquid distribution chamber is maximum at the coating liquid supply pipe connection position, and decreases as the distance from the connection position increases. °The structure is as shown in Fig. 4.
The distance between the inner wall surface and the outer wall surface is constant, and the bottom surface is the deepest at the connection position of the coating liquid supply pipe, and becomes continuously shallower as it moves away from the connection position (vertical variable type), or as shown in Figure 5. The depth of the coating liquid distribution chamber 2 is constant, and the distance between the inner wall surface and the outer wall surface of the coating liquid distribution chamber is maximized at the coating liquid supply pipe connection position, and is continuously reduced as the distance from the connection position increases. There are various types (laterally variable type), but the present invention is not limited to these types. or,
FIG. 2 shows a horizontal sectional view of the coating liquid distribution chamber of the laterally variable coating device when one coating liquid supply pipe is used.
その構造は第５図と同様である。第３図は、塗布液供給
パイプ２コを用いた場合の横方向変動型塗布装置の塗布
液分配室の水平断面図を示している。Its structure is similar to that shown in FIG. FIG. 3 shows a horizontal sectional view of the coating liquid distribution chamber of the laterally variable coating device when two coating liquid supply pipes are used.
塗布液供給パイプは１コ又は複数コを使用することがで
きる。塗布液供給パイプを複数コ使用する場合は、各供
給パイプより供給された液の合流付近での液封流による
塗布ムラを生じ易いため、その接続位置は、塗布装置の
外周面上の各々対称となる位置にとり付けるのが好まし
く、又、供給される塗布液は粘度その他物性に差のない
同−液を分離供給することが好ましい。One or more coating liquid supply pipes can be used. When using multiple coating liquid supply pipes, it is easy to cause uneven coating due to liquid sealing flow near the convergence of the liquid supplied from each supply pipe, so the connection positions should be symmetrical to each other on the outer peripheral surface of the coating device. It is preferable to attach the coating liquid to a position where the coating liquid has the same viscosity and other physical properties.
本発明の塗布装置を用いて塗布される液の粘度は、広い
範囲にわたって選択することができるが通常は０．５〜
１０００ｃｐ程度、好ましくは１〜５００ｃｐである。The viscosity of the liquid applied using the coating device of the present invention can be selected over a wide range, but is usually 0.5 to
It is about 1000 cp, preferably 1 to 500 cp.
本発明の塗布装置は、薄膜で高度に均一な塗布面が要求
される電子写真用感光体の製造に適しているが、被塗布
基材として円外周面に塗布される基材でおれば、仙の用
途にも用いることができる。The coating apparatus of the present invention is suitable for manufacturing electrophotographic photoreceptors that require a thin and highly uniform coated surface. It can also be used for Sen.
（Ｅ）実施例
塗布液供給パイプの径１０Ｍφ１コを使用し、塗布液分
配室内の垂直方向断面積が塗布液供給パイプとの接続位
置で最大２．２５ ｃｉとし最小０．６４ｃｒｔｔにい
たる縦方向変動型の塗布液分配室、塗布スリット巾１５
０１１ｎ、スリット流出口と円筒形状体７との間隔２０
０ＩＩｒ１の塗布装置を作成した。一方、ポリエチレン
１０ｙと銅フタロシアニン２ｇを含みキシレンで１００
ｄに調整した液を十分に分散して塗布液を調整し塗布液
分配スリット３の上部付近まで充満させた。(E) Example Using one coating liquid supply pipe with a diameter of 10Mφ, the vertical cross-sectional area in the coating liquid distribution chamber is a maximum of 2.25 ci at the connection position with the coating liquid supply pipe, and the vertical direction reaches a minimum of 0.64 crtt. Variable coating liquid distribution chamber, coating slit width 15
011n, distance 20 between the slit outlet and the cylindrical body 7
A coating device for 0IIr1 was created. On the other hand, containing 10y of polyethylene and 2g of copper phthalocyanine,
The liquid prepared in step d was sufficiently dispersed to prepare a coating liquid, and the coating liquid distribution slit 3 was filled up to the vicinity of the upper part.
１１６φのアルミニウム管（長さ３３ ｃｍ ＞を昇降
手段により１分間当り３．６ ｍの速度で上昇させ、１
分間当り１６４ｄの割合で送液し塗布した。更に前記塗
布液をキシレンで５００ｍ１に調整し、同様の操作を繰
り返した。乾燥後に電位を測定したところ、円周方向及
び長さ方向において２％以内の電位のフレがあるだけで
あり極めて高い表面平滑性の塗布層が得られることが確
認された。A 116φ aluminum tube (length 33 cm) was raised at a speed of 3.6 m per minute using a lifting means, and
The liquid was fed and coated at a rate of 164 d/min. Furthermore, the coating liquid was adjusted to 500 ml with xylene, and the same operation was repeated. When the electric potential was measured after drying, it was confirmed that there was only a fluctuation in the electric potential within 2% in the circumferential direction and the length direction, and that a coating layer with extremely high surface smoothness was obtained.
（Ｆ）発明の効果
本発明の塗布装置を使って円筒形状体の外周面上に塗布
液を塗布することにより従来の塗布装置に比べ、より高
い表面平滑性の塗布層をその塗布液の物性に制限される
ことなく得ることができた。(F) Effects of the invention By applying a coating liquid onto the outer peripheral surface of a cylindrical body using the coating device of the present invention, a coating layer with a higher surface smoothness can be produced by the physical properties of the coating liquid, compared to conventional coating devices. could be obtained without being restricted.
第１図は本発明の一興体例の塗布装置を用いて塗布して
いる状態を示す垂直断面図であり、第２図、第３図はそ
れぞれ塗布液供給パイプが１コ及び２コの場合の横方向
変動型塗布液分配室を有する本発明装置の水平断面図を
示している。又第４図は、塗布液供給パイプ１コを接続
し、縦方向変動型の塗布液分配室とした。塗布装置の垂
直断面図で、第５図は、塗布液供給パイプ１コを接続し
、横方向変動型の塗布液分配室とした塗布装置の垂直断
面図でおる。
１・・・・・・塗イ［液供給パイプ ２・・・・・・塗
布液分配室３・・・・・・塗布スリット ４・・・
・・・塗布液５・・・・・・円筒形状体
第１図
第２［FIG. 1 is a vertical cross-sectional view showing a state in which coating is performed using a coating device according to an example of the present invention, and FIGS. 2 and 3 show cases in which the number of coating liquid supply pipes is one and two, respectively. 1 shows a horizontal sectional view of an apparatus according to the invention with a laterally variable coating liquid distribution chamber; FIG. In addition, in FIG. 4, one coating liquid supply pipe is connected to form a vertically variable coating liquid distribution chamber. FIG. 5 is a vertical sectional view of the coating apparatus, in which one coating liquid supply pipe is connected to form a laterally variable coating liquid distribution chamber. 1...Coating [Liquid supply pipe 2...Coating liquid distribution chamber 3...Coating slit 4...
... Coating liquid 5 ... Cylindrical body Fig. 1 Fig. 2 [
Claims (1)
イプ、（２）前記塗布液供給パイプに少なくとも一箇所
で接続し、被塗布基材の外周をとり囲むように連続する
塗布液分配室、（３）前記塗布液分配室から被塗布基材
の外周をとり囲むように連続してつながれた塗布液分配
スリットを通じて塗布する装置において、該塗布液分配
室の垂直方向断面積が塗布液供給パイプ接続位置におい
て最大であり、該接続位置より離れるにしたがって減少
するようにしたことを特徴とする塗布装置。Applying the coating liquid onto the circular outer peripheral surface of the substrate to be coated, (1) connecting the coating liquid supply pipe to (2) the coating liquid supply pipe at at least one point so as to continuously surround the outer periphery of the substrate to be coated. a coating liquid distribution chamber; (3) a vertical cross-sectional area of the coating liquid distribution chamber; 1. A coating device characterized in that: is maximum at a coating liquid supply pipe connection position and decreases as the distance from the connection position increases.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5615686A JPS62213872A (en) | 1986-03-13 | 1986-03-13 | Coating apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5615686A JPS62213872A (en) | 1986-03-13 | 1986-03-13 | Coating apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62213872A true JPS62213872A (en) | 1987-09-19 |
Family
ID=13019227
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5615686A Pending JPS62213872A (en) | 1986-03-13 | 1986-03-13 | Coating apparatus |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62213872A (en) |
-
1986
- 1986-03-13 JP JP5615686A patent/JPS62213872A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4299188A (en) | Coating apparatus | |
| US3840384A (en) | Method and device for coating plastics film | |
| US2695002A (en) | Electrostatic atomizer of liquids | |
| US4210507A (en) | Electrocoating flow control electrode and method | |
| US2877137A (en) | Method of electrostatically coating an article | |
| JPS62213872A (en) | Coating apparatus | |
| JPS58189061A (en) | Coater for surface of substrate having endlessly-formed continuous surface | |
| JPS6241793B2 (en) | ||
| JPS618164A (en) | Coating apparatus | |
| US3513017A (en) | Coating method and apparatus for coating layers of liquid material onto a support | |
| CN208407477U (en) | A kind of copper bar surface coating device | |
| US5863619A (en) | Method of and apparatus for coating photoresist film | |
| JPS60172378A (en) | Coating device | |
| JPS60197266A (en) | Coating apparatus | |
| US3017114A (en) | Electrostatic paint spray | |
| JPH10216588A (en) | Rod for coating equipment | |
| JPS632660B2 (en) | ||
| JPH0574428B2 (en) | ||
| JPH043271B2 (en) | ||
| US3540475A (en) | Rotary manifold | |
| JPH0519502A (en) | Annular coating device | |
| JPS5913266B2 (en) | painting equipment | |
| JPH067265B2 (en) | Electrophotographic recording material base material coating device | |
| JPS58207965A (en) | Powder coater | |
| JP3661303B2 (en) | Cylindrical substrate coating method and coating apparatus |