JPS62254871A - Dip coating method - Google Patents
Dip coating methodInfo
- Publication number
- JPS62254871A JPS62254871A JP9974186A JP9974186A JPS62254871A JP S62254871 A JPS62254871 A JP S62254871A JP 9974186 A JP9974186 A JP 9974186A JP 9974186 A JP9974186 A JP 9974186A JP S62254871 A JPS62254871 A JP S62254871A
- Authority
- JP
- Japan
- Prior art keywords
- paint
- speed
- coated
- coating
- film
- 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
- 238000003618 dip coating Methods 0.000 title claims abstract description 17
- 239000003973 paint Substances 0.000 claims abstract description 56
- 238000000034 method Methods 0.000 claims description 12
- 238000007598 dipping method Methods 0.000 claims description 6
- 239000011248 coating agent Substances 0.000 abstract description 33
- 238000000576 coating method Methods 0.000 abstract description 33
- 239000000463 material Substances 0.000 abstract description 6
- 230000015572 biosynthetic process Effects 0.000 abstract description 4
- 230000003247 decreasing effect Effects 0.000 abstract 1
- 239000010408 film Substances 0.000 description 44
- 239000002904 solvent Substances 0.000 description 11
- 238000007654 immersion Methods 0.000 description 6
- 239000007788 liquid Substances 0.000 description 6
- 238000007665 sagging Methods 0.000 description 6
- 238000000926 separation method Methods 0.000 description 6
- 239000000758 substrate Substances 0.000 description 6
- 230000000052 comparative effect Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000001035 drying Methods 0.000 description 3
- 238000001704 evaporation Methods 0.000 description 3
- 230000008020 evaporation Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 108091008695 photoreceptors Proteins 0.000 description 2
- 238000002791 soaking Methods 0.000 description 2
- 239000010409 thin film Substances 0.000 description 2
- 238000007664 blowing Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000008199 coating composition Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 239000004417 polycarbonate Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000000935 solvent evaporation Methods 0.000 description 1
Abstract
Description
【発明の詳細な説明】
［産業上の利用分野］
本発明は浸漬塗布方法に係り、特に、電子写真感光体の
製造にあたり、ドラム状基体の外表面に有機光導電体膜
を塗布形成するに好適な浸漬塗布方法に関するものであ
る。[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a dip coating method, and in particular, to a method for coating an organic photoconductor film on the outer surface of a drum-shaped substrate in the production of an electrophotographic photoreceptor. The present invention relates to a preferred dip coating method.
〔従来の技術］
従来より、ドラム状基体に有機光導電体膜を形成するに
好適な方法として、浸漬塗布法が知られている（＃開開
４９−１３０７３６号公報）、この浸漬塗布法は、基本
的には、被塗布物を塗料中に浸漬し１次いで適当な速度
で塗料中より離脱させて、その表面に塗膜を形成するも
のである。[Prior Art] A dip coating method has conventionally been known as a suitable method for forming an organic photoconductor film on a drum-shaped substrate (#Kokai No. 49-130736). Basically, the object to be coated is immersed in the paint and then removed from the paint at an appropriate speed to form a coating film on its surface.
しかしながら、この際、被塗布物の表面に塗布。However, at this time, it is applied to the surface of the object to be coated.
された塗料中の溶媒が徐々に蒸発して塗料の流動性が減
少するまで、塗布された塗料は重力により下方へ流れ、
その結果、形成される塗膜は上方はど膜厚が薄くなる。The applied paint flows downward due to gravity until the solvent in the applied paint gradually evaporates and the fluidity of the paint decreases.
As a result, the coating film that is formed is thinner in the upper part.
いわゆる上端タレが生じてしまい、膜厚は不均一なもの
となる。So-called upper end sagging occurs, and the film thickness becomes non-uniform.
このような不均一膜厚部を少しでも小さくする方法とし
て、被塗布物を浸漬後、上方の薄膜形成部のみを一旦離
脱させた後、再浸漬し、その後、全体を離脱させること
により、上方部のみを重ね塗りする方法が提案されてい
る（特開昭５９−８０３６４号公報）。As a method to reduce such non-uniform film thickness as much as possible, after dipping the object to be coated, only the upper thin film forming part is removed, re-immersed, and then the entire part is removed. A method of overcoating only the area has been proposed (Japanese Patent Application Laid-open No. 80364/1983).
［発明が解決しようとする問題点］
しかしながら、このような方法によって単に重ね塗りす
るだけでは、十分に満足し得る結果は得られない０例え
ば、特開昭５９−８０３６４号公報には、より好適な態
様として、被塗布物上方部のみを離脱させる際の速度を
全体を離脱させる際の速度よりも大きくし、また、更に
送風又は吸引により、塗料液面状の溶媒蒸気濃度を被塗
布物の上方部のみの離脱時において小さくすることが開
示されているが、本公報の実施例の結果からも明らかな
ように、この方法で得られる塗膜の膜厚変化は第２図の
曲線５に示すようなものとなる。この結果は、同図中の
曲線４に示される重ね塗りを行なわない比較例の結果よ
りは良く、ある程度の効果は奏されているものの、未だ
上端タレによる薄膜部が残されており、十分に満足し得
る結果とはいえない。[Problems to be Solved by the Invention] However, by simply overcoating using such a method, a fully satisfactory result cannot be obtained. As a preferred embodiment, the speed at which only the upper part of the object to be coated is removed is set higher than the speed at which the entire object is removed, and the solvent vapor concentration at the surface of the paint liquid is lowered by blowing air or suction. Although it is disclosed that the thickness is reduced when only the upper part is removed, as is clear from the results of the examples in this publication, the change in film thickness of the coating film obtained by this method is as shown by curve 5 in Fig. 2. It will look like the one shown. This result is better than the result of the comparative example in which overcoating is not performed as shown by curve 4 in the figure, and although some effect has been achieved, there is still a thin film part due to top edge sagging, and it is not sufficient. This is not a satisfactory result.
［問題点を解決するための手段］
本発明は、上述したような従来の浸漬塗布方法における
、塗膜上方の不均一膜厚部の形成を防止し、この不均一
膜厚部を著しく小さく抑えることが可能な浸漬塗布方法
を提供するものであって、被塗布物を塗料容器の開口か
ら挿入して塗料中に浸漬した後、被塗布物塗布面の上方
部のみ？塗料中から離脱させ、再浸漬させる工程及び被
塗布物全体を塗料中から離脱させる工程からなる浸漬塗
布方法において、該塗料容器の開口部は、被塗布物に接
触しない程度に狭められた構造を有し、かつ、該上方部
のみを離脱、再浸漬させるときの離脱速度及び浸漬速度
を全体を離脱させるときの離脱速度より小さくすること
を特徴とする浸漬塗布方法、
を要旨とするものである。[Means for Solving the Problems] The present invention prevents the formation of a non-uniform film thickness area above the coating film in the conventional dip coating method as described above, and suppresses this non-uniform film thickness part significantly. The present invention provides a dip coating method in which the object to be coated is inserted through the opening of the paint container and immersed in the paint, and then only the upper part of the surface of the object to be coated is coated. In the dip coating method, which includes a step of removing the object from the paint and re-immersing it, and a step of removing the entire object from the paint, the opening of the paint container is narrowed to the extent that it does not come into contact with the object. A dip coating method characterized in that the removal speed and dipping speed when only the upper portion is removed and re-immersed are smaller than the removal speed when the entire portion is removed. .
即ち、本発明者らは、前記特開昭５９−８０３６４号公
報記載の方法において、更に塗膜上方部の膜厚を厚くす
る方向に上方部の離脱長さ等の条件を変えた場合には、
第２図の曲線６のように厚膜部が形成されてしまうこと
を確認した。しかして、このような結果において、厚膜
部が生じる原因について検討した結果、
■ 溶媒の蒸発によって生じる虜料液面部の高濃度塗料
液による影響
■ 被塗布物に塗布された塗料が、再浸漬・離脱の工程
でりしてくることによる影響
が主要因であると考え、これらの原因を取り除いて、上
端タレを改善するべく更に鋭意検討を重ねた結果、塗膜
上方部のみを重ね塗りする浸漬塗布方法において、塗料
容器開口部を狭くし、また、被塗布物塗布面の上方部の
みを離脱・再浸漬する速度を全体を離脱させる速度より
も遅くすることにより良好な結果が得られることを見出
し、本発明を完成させた。That is, in the method described in JP-A-59-80364, the present inventors found that when the conditions such as the separation length of the upper part were changed in the direction of further increasing the thickness of the upper part of the coating film, ,
It was confirmed that a thick film portion was formed as shown by curve 6 in FIG. 2. However, as a result of examining the causes of the thick film in these results, we found that: ■ The effect of the highly concentrated paint liquid on the surface of the liquid caused by the evaporation of the solvent ■ The paint applied to the object being re-coated We believed that the main cause was the effect of sagging during the immersion and separation process, and after further intensive study to eliminate these causes and improve the top edge sagging, we decided to recoat only the upper part of the coating. In the dip coating method, good results can be obtained by narrowing the opening of the paint container and by making the speed at which only the upper part of the surface to be coated is removed and re-dipped slower than the speed at which the entire surface is removed. They discovered this and completed the present invention.
以下に図面を参照して本発明の詳細な説明する。The present invention will be described in detail below with reference to the drawings.
本発明の方法においては、浸漬処理のための塗料容器と
して、第１図に示す如く、被塗布物３が通過する際に接
触しない程度に開口部１ａを狭めた塗料容器１を用いる
０本発明において、容器１の開口部１ａを狭める目的は
、容器内空間１ｂの溶媒蒸気濃度を高めることにより、
塗料液面からの溶媒の蒸発を防止することにあり、この
開口部１ａの大きさは、被塗布物３が接触しない程度の
狭さに適宜決定される。In the method of the present invention, as a paint container for dipping treatment, a paint container 1 is used, as shown in FIG. The purpose of narrowing the opening 1a of the container 1 is to increase the solvent vapor concentration in the container interior space 1b.
The purpose is to prevent evaporation of the solvent from the surface of the paint liquid, and the size of the opening 1a is appropriately determined to be narrow enough that the object 3 to be coated does not come into contact with it.
このような開口部１ａを有する容器１に塗料２を入れ（
第１図（ａ））、被塗布物３を、その上端部を残して実
質的に全体を塗料２中に浸漬しく第１図（ｂ））、次い
で塗布面の上方部３ａのみを塗料２中から離脱させて塗
膜１１を形成しく第１図（Ｃ））、再び全体を浸漬する
（第１図（ｃｌ） ） 、 Ｌかる後、被塗布物３の全
体を塗料２中から離脱させて塗膜１２を形成する。なお
、重ね塗りのために一旦引き上げる部分、即ち第１図（
Ｃ）の３ａの長さＬは、塗料組成、塗料溶媒等に応じて
適宜決定される。Put the paint 2 into the container 1 having such an opening 1a (
1(a)), substantially the entire object 3 to be coated except for its upper end is immersed in the paint 2 (FIG. 1(b)), and then only the upper part 3a of the coated surface is immersed in the paint 2. The entire object 3 to be coated is separated from the inside of the paint 2 to form a coating film 11 (FIG. 1 (C)), and the entire object is immersed again (FIG. 1 (CL)). A coating film 12 is formed. Note that the part that will be pulled up once for overcoating, that is, the part shown in Figure 1 (
The length L of 3a in C) is appropriately determined depending on the paint composition, paint solvent, etc.
本発明においては、このような一連の工程は、静止させ
ることなくａ統帥に行なうのが好ましく、これらの工程
において、第１図（ｂ）−（ｃ）の離脱速度をｖｌ、第
１図（ｃ）＝ （ｄ）の再浸漬速度をｖ１′、第１図（
ｄ）→（ｅ）の離脱速度をｖ２とした場合、
Ｖ ＋ ＜ Ｖ ２
ｖ ＋′＜ Ｖ ２
とする、なおＶｌ とＶ ＋”とはほぼ同程度とするの
が良い。In the present invention, it is preferable to carry out such a series of steps without stopping, and in these steps, the detachment speed in FIGS. 1(b)-(c) is set to vl, and FIG. c) = Re-soaking speed of (d) is v1', Fig. 1 (
When the separation speed from d) to (e) is v2, it is preferable that V + < V 2 v +'< V 2 , and that Vl and V +' are approximately the same.
本発明において、Ｖ３、１′、ｖ２の最適値は、被塗布
物３の塗布面の上方部のみを塗料２中から離脱した際の
、塗膜容器ｌ外に表出した部分、即ち、第１図（Ｃ）に
おける文の長さと共に、塗料の粘度色、形成する塗膜１
２の膜厚を等により影響を受ける。In the present invention, the optimum values of V3, 1', and v2 are determined by the part exposed outside the coating film container l when only the upper part of the coated surface of the object 3 is removed from the coating material 2, that is, the part exposed outside the coating film container l. Along with the length of the sentence in Figure 1 (C), the viscosity color of the paint and the coating film 1 to be formed.
It is affected by the film thickness of 2, etc.
例えば、第１図（ｂ）→（Ｃ）の引き上げ速度Ｖ＋ と
第１図（Ｃ）−（ｄ）の再浸漬速度ｖｃ′を等しくし、
第１図（ｄ）→（ｅ）の引き上げ速度ｖ２ （ただし、
Ｖ２＞Ｖｌ）又は塗料の粘度色を変化させた部分に、塗
膜上方の不均一膜厚部が最も小さくなる文の長さ及び膜
厚ｔの関係は第３図に示す如くであった。また、該不均
一膜厚部が最も小さくなるＶｌと文との関係は第４図に
示す如くであった。For example, by setting the pulling speed V+ in FIG. 1(b)→(C) equal to the re-immersion speed vc' in FIG. 1(C)-(d),
Pulling speed v2 in Fig. 1 (d) → (e) (however,
V2>Vl) or the viscosity color of the paint was changed, and the relationship between the length and the film thickness t, where the uneven film thickness above the paint film was smallest, was as shown in FIG. Further, the relationship between Vl and the pattern at which the non-uniform film thickness portion is the smallest is as shown in FIG.
このように、本発明の方法において、上方部の離脱速度
ｖｌ、再浸漬速度 、＃、全体の離脱速度ｖ２や第１図
（ｃ）における容器外表出長さ父等の最適値は、塗料粘
度ル、膜厚ｔや離脱速度ｖ２２内によっても変化し、そ
の他塗料組成、ケネ４溶媒の蒸気圧（特に蒸発速度）、
被塗布物や容器の形状、大きさ等によって影響を受ける
ため、これらに基いて、塗膜上方の不均一膜厚部が最小
となるように、計算により、あるいは実験的に決定され
る。As described above, in the method of the present invention, the optimum values of the upper part detachment speed vl, the re-immersion speed #, the overall detachment speed v2, and the length of the outside of the container in Fig. 1(c) are determined by the paint viscosity. It also changes depending on the film thickness t and separation speed v22, as well as the coating composition, the vapor pressure of the solvent (particularly the evaporation rate),
Since it is influenced by the shape and size of the object to be coated and the container, it is determined based on these factors by calculation or experimentation so that the uneven film thickness above the coating film is minimized.
なお、本発明において、用いる塗料の溶媒としては、揮
発性が高く、その蒸気の密度は空気より大である方が望
ましい。In addition, in the present invention, it is preferable that the solvent for the paint used has high volatility and the density of its vapor is higher than that of air.
また第３図、第４図を詳細に検討すれば明らかとなるこ
とであるが、本発明において、上方の重ね塗りによって
単なる一度塗りよりも余分に要する時間は、塗料の粘度
ルを低くし、全体の離脱速度ｖ２を大きくし、全体の処
理速度を上げることにより、十分に補えるものである。Furthermore, as will become clear from a detailed examination of FIGS. 3 and 4, in the present invention, the extra time required by overcoating above, compared to just one coat, lowers the viscosity of the paint, This can be sufficiently compensated for by increasing the overall withdrawal speed v2 and increasing the overall processing speed.
［作用］
本発明においては塗料容器ｌの開口部１ａが狭いために
、溶媒の蒸気の容器外への飛散が防止され、塗料容器内
空間の溶媒蒸気濃度が高くなり。[Function] In the present invention, since the opening 1a of the paint container 1 is narrow, the solvent vapor is prevented from scattering outside the container, and the concentration of solvent vapor in the space inside the paint container is increased.
塗料液面からの溶媒蒸発が抑制される。このため、前述
した第２図の曲線６に示す厚膜部の生じる第１の原因で
ある塗料液面の高濃度塗料液による問題が防止される。Solvent evaporation from the paint surface is suppressed. Therefore, the problem caused by the high concentration of the paint liquid on the paint liquid level, which is the first cause of the formation of the thick film portion as shown by the curve 6 in FIG. 2 described above, is prevented.
ところで、このように塗料容器１内の溶媒蒸気濃度を高
めると、塗膜１１の乾燥が遅れ上方部の塗膜１１を重ね
塗りしてもタレはあまり小さくならない、そこで、被塗
布物塗布面上方部３ａのみを離脱、再浸漬する速度Ｖｌ
、Ｖ＋’を遅くすることにより、最初の離脱によって形
成される塗膜１１の乾燥時間を長くして乾燥を十分なも
のとする。By the way, when the concentration of solvent vapor in the paint container 1 is increased in this way, the drying of the paint film 11 is delayed, and even if the upper part of the paint film 11 is overcoated, the sagging will not be reduced so much. Speed Vl of removing and re-immersing only part 3a
, V+', the drying time of the coating film 11 formed by the initial detachment is increased to ensure sufficient drying.
また、被塗布物３の塗布面の上方部３ａのみの離脱速度
ｖ１を遅くしたことにより、このときに形成される塗１
１！ＩＪＩＩの上方の容器外まで出た部分は乾燥が早く
進み、再浸漬及びその後の全体の離脱を行なってもタレ
なくなり、一方、その下方の容器内の部分は乾燥が遅れ
、再浸漬速度Ｖ ＋”も遅くしたことにより再浸漬時に
塗料中に再溶解し。In addition, by slowing down the separation speed v1 of only the upper part 3a of the coating surface of the object 3, the coating 1 formed at this time
1! The portion above the IJII that extends outside the container dries quickly and does not sag even after re-immersion and subsequent removal of the entire container.On the other hand, the portion below IJII inside the container dries slowly and the re-immersion speed is V + "It also slows down and redissolves in the paint during re-soaking."
タレの影響がより小さくなって、前述した第２の原因も
解消される。このようなことから、本発明によれば、前
述の第２図の曲線６における厚膜部の形成が効果的に防
止される。The influence of sag becomes smaller, and the second cause mentioned above is also eliminated. For this reason, according to the present invention, the formation of the thick film portion on the curve 6 in FIG. 2 described above can be effectively prevented.
しかして、被塗布物３の全体を再度浸漬して引き上げる
ことにより、極めて均一な膜厚の塗膜１２が得られるこ
ととなる。Therefore, by dipping the entire object 3 to be coated again and pulling it up, a coating film 12 having an extremely uniform thickness can be obtained.
［実施例］
以下に実施例及び比較例を挙げて本発明をより具体的に
説明するが、本発明はその要旨を超えない限り、以下の
実施例に限定されるものではない。[Examples] The present invention will be described in more detail with reference to Examples and Comparative Examples below, but the present invention is not limited to the following Examples unless it exceeds the gist thereof.
実施例１
第１図（ａ）〜（ｅ）に示す本発明の方法に従って、ド
ラム状基体の表面に有機光導電体の塗Ｄλを形成した。Example 1 A coating Dλ of an organic photoconductor was formed on the surface of a drum-shaped substrate according to the method of the present invention shown in FIGS. 1(a) to (e).
なお、用いたドラム状基体、塗料、塗料容器及び離脱速
度等の塗布条件は以下に示す通りである。The coating conditions such as the drum-shaped substrate, paint, paint container, and removal speed used are as shown below.
上」−包淋１停 材 質ニアルミニウム 大きさ：直径＝ ８０ｍｍ 長さ＝３４０ｍｍ 翌−１ 組 成：ポリカーボネート溶液。Above” - Bao Ling 1 stop Material Nialuminum Size: Diameter = 80mm Length = 340mm Next day -1 Composition: Polycarbonate solution.
固形分Ｃ度２２．５ｗｔ％
粘度ｇ： ０．１３Ｐａ−ｓ
ｉ扛丘】
直 径 ：１０５ｍｍ
高 さ ：４００ｍｍ
開口部直径：８８ｍｍ
翌亙条１
上方部のみの離脱速度Ｖ＋ ： ６．３ｍｍ／Ｓ／ｌ
再浸漬速度ｖ＋′：６．３ｍｍ／ｓ離脱させた上方部
の長さＬ二９０ｍｍ
容器外表出部長さｆＬ ： ２８ｍｍ
全体の離脱速度ｖ２：１０ｍｍ／ｓ
得られた塗膜について、膜厚と塗膜上端からの距離との
関係を調べたところ、第５図の曲線８に示す如く、づし
の生じた部分は塗膜上端から５ｍｍ以下の範囲であり、
その他は膜厚的２２ｇｍの極めて均一な膜厚の塗膜が得
られたことが確認された。Solid content C 22.5 wt% Viscosity g: 0.13 Pa-s i-bun] Diameter: 105 mm Height: 400 mm Opening diameter: 88 mm Next section 1 Separation speed of upper part only V+: 6.3 mm/S /l
Re-immersion speed v+': 6.3 mm/s Length L of the upper part removed 90 mm Length fL of the exposed part outside the container: 28 mm Overall removal speed v2: 10 mm/s Regarding the obtained coating film, the film thickness and coating When we investigated the relationship with the distance from the top of the coating, we found that the area where the cracks occurred was within 5 mm from the top of the coating, as shown by curve 8 in Figure 5.
Otherwise, it was confirmed that a coating film with an extremely uniform thickness of 22 gm was obtained.
比較例１
実施例１と同様のドラム状基体及び塗料を用い、浸漬塗
布を広口の開口部を有する容器内の塗料に基体を浸漬し
、次いで引き上げることにより行ない、得られた塗膜に
ついて、膜厚と塗膜上端からの距離との関係を調べたと
ころ、第５図の曲線７に示す如く、塗膜上端から約５０
ｍｍの範囲にわたってタレが生じていることが認められ
た。Comparative Example 1 Using the same drum-shaped substrate and paint as in Example 1, dip coating was carried out by dipping the substrate into the paint in a container with a wide opening and then pulling it up. When we investigated the relationship between the thickness and the distance from the top of the coating film, we found that the distance from the top of the coating film was approximately 50 mm, as shown by curve 7 in Figure 5.
It was observed that sag occurred over a range of mm.
［発明の効果］
以上詳述した通り、本発明の浸漬塗布方法によれば、上
端タレによる塗布面上端部の不均一膜厚部が殆どない、
極めて均一な厚さの塗膜を効率的に形成することが回旋
である。[Effects of the Invention] As detailed above, according to the dip coating method of the present invention, there is almost no uneven film thickness at the upper end of the coating surface due to upper end sagging.
Swirling effectively forms a coating film with extremely uniform thickness.
このような本発明の方法は、電子写真用感光体の製造に
極めて好適であり、従来画像形成部とすることのできな
かった光導電体膜の不均一膜厚部を著しく小さくするこ
とができるため、その分基体ドラムの長さを短くするこ
とができることから、装着の小型化を図ることが可能と
される。Such a method of the present invention is extremely suitable for manufacturing photoreceptors for electrophotography, and can significantly reduce uneven film thickness areas of the photoconductor film that could not be used as image forming areas in the past. Therefore, since the length of the base drum can be shortened accordingly, it is possible to reduce the size of the mounting.
第１図（ａ）〜（ｅ）は本発明の浸漬塗布方法の一実施
例を説明する断面図、第２図は従来の浸漬塗布方法によ
って得られる塗膜の膜厚を示すグラフ、第３図及び第４
図は本発明の浸漬塗布方法における最適条件の関係を示
すグラフ、第５図は実施例１及び比較例１の結果を示す
グラフである。
ｌ・・・塗料容器、 ２・・・塗料、３・・・
被塗布物、 １１．１２・・・塗膜。
代理人 弁理士 重 野 剛
第２図
第３図
！
第５図1(a) to 1(e) are cross-sectional views illustrating an embodiment of the dip coating method of the present invention, FIG. 2 is a graph showing the thickness of a coating film obtained by a conventional dip coating method, and FIG. Figure and 4th
The figure is a graph showing the relationship between optimal conditions in the dip coating method of the present invention, and FIG. 5 is a graph showing the results of Example 1 and Comparative Example 1. l...Paint container, 2...Paint, 3...
Object to be coated, 11.12...Coating film. Agent Patent Attorney Tsuyoshi Shigeno Figure 2 and Figure 3! Figure 5
Claims (1)
浸漬した後、被塗布物塗布面の上方部のみを塗料中から
離脱させ、再浸漬させる工程及び被塗布物全体を塗料中
から離脱させる工程からなる浸漬塗布方法において、該
塗料容器の開口部は、被塗布物に接触しない程度に狭め
られた構造を有し、かつ、該上方部のみを離脱、再浸漬
させるときの離脱速度及び浸漬速度を全体を離脱させる
ときの離脱速度より小さくすることを特徴とする浸漬塗
布方法。(1) The process of inserting the object to be coated through the opening of the paint container and immersing it in the paint, then removing only the upper part of the coated surface of the object from the paint and re-immersing it, and immersing the entire object in the paint. In the dip coating method, the opening of the paint container has a structure narrowed to the extent that it does not come into contact with the object to be coated, and the opening of the paint container is narrowed to the extent that it does not come into contact with the object to be coated, and the opening of the paint container is narrowed to the extent that only the upper part is removed and re-immersed. A dip coating method characterized in that the speed and dipping speed are lower than the removal speed when removing the whole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9974186A JPS62254871A (en) | 1986-04-30 | 1986-04-30 | Dip coating method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9974186A JPS62254871A (en) | 1986-04-30 | 1986-04-30 | Dip coating method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62254871A true JPS62254871A (en) | 1987-11-06 |
Family
ID=14255437
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9974186A Pending JPS62254871A (en) | 1986-04-30 | 1986-04-30 | Dip coating method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62254871A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6576299B1 (en) | 2001-12-19 | 2003-06-10 | Xerox Corporation | Coating method |
| JP2015221402A (en) * | 2014-05-22 | 2015-12-10 | 富士ゼロックス株式会社 | Manufacturing method of rotor and manufacturing method of photoreceptor |
-
1986
- 1986-04-30 JP JP9974186A patent/JPS62254871A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6576299B1 (en) | 2001-12-19 | 2003-06-10 | Xerox Corporation | Coating method |
| EP1321196A1 (en) * | 2001-12-19 | 2003-06-25 | Xerox Corporation | Dip coating method |
| JP2015221402A (en) * | 2014-05-22 | 2015-12-10 | 富士ゼロックス株式会社 | Manufacturing method of rotor and manufacturing method of photoreceptor |
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