JPS6148995B2 - - Google Patents

Info

Publication number
JPS6148995B2
JPS6148995B2 JP2913281A JP2913281A JPS6148995B2 JP S6148995 B2 JPS6148995 B2 JP S6148995B2 JP 2913281 A JP2913281 A JP 2913281A JP 2913281 A JP2913281 A JP 2913281A JP S6148995 B2 JPS6148995 B2 JP S6148995B2
Authority
JP
Japan
Prior art keywords
coating
support
liquid
cloth
coating liquid
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
Application number
JP2913281A
Other languages
Japanese (ja)
Other versions
JPS57144063A (en
Inventor
Ryuichi Murakita
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nitto Denko Corp
Original Assignee
Nitto Electric Industrial Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Nitto Electric Industrial Co Ltd filed Critical Nitto Electric Industrial Co Ltd
Priority to JP2913281A priority Critical patent/JPS57144063A/en
Publication of JPS57144063A publication Critical patent/JPS57144063A/en
Publication of JPS6148995B2 publication Critical patent/JPS6148995B2/ja
Granted legal-status Critical Current

Links

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  • Application Of Or Painting With Fluid Materials (AREA)

Description

【発明の詳細な説明】[Detailed description of the invention]

本発明は液体の塗布方法、特に液体を薄く塗布
する方法に関する。 従来、走行する長尺可撓性支持体に液体を塗布
する場合には、たとえば該支持体を精度のよいロ
ール面上に走行させ、この支持体上に押出し型あ
るいはスライドホツパー型注液器より塗布液を供
給することにより為されていた。 ところがこのような方法によると、塗布量の調
節には定量ポンプが必要である等装置の設計が複
雑となると共に支持体の走行速度が小なる場合や
塗布液の粘度が低い場合には塗布むらができると
いう欠点があつた。 本発明はこのような欠点を改良するために為さ
れたもので、自吸性を有する布様塗布部材の中間
部を、支持軸を介して懸架させると共に、その一
端縁部を塗布液中に浸漬し、他端縁部を走行する
長尺可撓性支持体表面に接触させて、塗布液を上
記支持体の被塗布面に供給することを特徴とする
液体の塗布方法に関するものである。 以下本発明の一実施例を図面により説明する。 第1図および第2図に於て、1は塗布液11を
入れてある容器、2は布様塗布部材、3は布様塗
布部材を懸架する支持軸、4は塗布部材2の端縁
部を塗布液中に固定させるための長尺芯である。 なお5は長尺可撓性支持体(以下支持体とい
う)であり矢印方向に走行する。6は液面を一定
に保つための塗布液流出孔で、塗布液タンク(図
示せず)より容器1に過剰係給された塗布液が、
この流出口より、流出するようになつている。 図面において塗布液は毛細管現象により布様塗
布部材に含浸されてゆき、布様塗布部材の先端2
2に至ると、該先端は走行する支持体と接触して
いるので、支持体表面に液体の塗膜が均一に形成
される。 本発明において用いられる布様塗布部材として
はガーゼ、合成繊維布、トリコツト織布等を挙げ
ることができ、その材質としては、ポリエステル
繊維、アクリル繊維の如き有機質繊維、綿、絹、
麻の如き天然繊維、ガラス繊維等を挙げることが
できる。 また布様塗布部材としては、見かけの密度0.5
以下(通常の下限値は0.25)、好ましくは0.35〜
0.48、含水度合(水飽和時の布の重さ/乾燥時の布の重
さ×100で示 される値)200%以上、吸水度(JISP 8141号に
よる)が10分間で50mm以上、吸水速度10秒以内、
厚み200μ以上(通常の上限値は1mm)好ましく
は300μ〜500μ程度のものが特に用いられる。 上記吸水速度は、10cm×10cmの試料を5枚用意
しビユーレツトから温度27℃±2℃の純水を、2
cmの高さから0.1mlずつ5滴滴下し、初めの水滴
を滴下したときストツプウオツチを動かし試料の
表面の水滴が特別の反射(水滴の鏡面反射)を失
い、湿潤だけが残るまでの時間を計り、これを1
試料について5回くり返し、平均値を求めること
により算出した値である。 また布様塗布部材としては、通常方形のものが
用いられ、この塗布部材が支持体と接触する端縁
は好ましくは支持体の長手方向に対して略直角方
向で且つほぼ直線状の態様にて為される。 なお上記第1図および第2図においては支持軸
の高さを調節する機構は図示していないが、これ
は、公知のテイクアツプユニツトあるいはストレ
ツチヤーユニツトのような器具を用いることによ
り容易に為しうる。 本発明に於て、支持体上に塗布される塗布液の
塗膜厚さは、支持体の走行スピードと塗布部材先
端22より流出する塗布液量により支配される。 また上記塗布液量は、布様塗布部材の材質、構
造(形態)、物性、塗布液の塗布雰囲気での粘
度、塗布液液面と布様塗布部材の最も高い位置
(第2図ではH点)との液位差により決定される
ので、所望する塗膜厚に応じ上記諸条件を適宜決
定すればよい。 本発明においては、塗布液液面を一定に保つこ
とにより、均一な厚みの塗膜が支持体上に形成で
きるが、このような場合、液面を一定に保つ手段
は、公知であり、たとえば上記した第2図に示す
如き形式をとればよい。 また本発明において液面を一定に保つには、液
面が下つた部だけ、支持軸が下り、上記液位差が
一定になるようにマイコン制御する等種々の方式
が採用できる。 本発明において、使用できる塗布液としては、
塗布液が毛細管現象により布様塗布部材に含浸さ
れ且つ走行する支持体に塗布できるような粘度の
ものであればどのようなものでもよいが、通常、
塗布雰囲気温度(たとえば20℃)での粘度が0.5
〜10センチポイズ好ましくは1〜5センチポイズ
のものが使用される。また塗布液としては、室温
で不揮発性の液体(たとえば蒸気圧1mmHg〜150
mmHgのもの)もしくは溶液等が好ましく使用さ
れる。 具体的には、モノマー、オリゴマー、ポリマー
単独あるいはこれらの溶液、無機化合物、酸、ア
ルカリ、塩等の溶液を挙げることができる。 上記溶液を構成する溶媒としては、水、アルコ
ール、炭化水素、ハロゲン化炭化水素、ケトン、
エステル等を挙げることができる。 また塗布液として、各種のエマルジヨン、サス
ペンジヨンも用いることができる。 本発明に於ける支持体の走行スピードは、布様
塗布部材より流出しうる塗布液の量、形成すべき
塗布液の塗膜厚等を考慮して適宜決定することが
できるが、通常0.1m/分〜10m/分程度であ
る。 第3図および第4図は本発明の他の実例を示す
もので、符号の説明は前述と同様である。 本発明においては、たとえば塗布液の粘度が1
〜10センチポイズ(20℃での測定値)で支持体へ
形成される塗膜厚を10〜40ミクロン程度とする場
合、にはトリコツト織布(たとえば吸水度60mm、
吸水率140%のポリエステル製トリコツト織布)
を用いるのがよい。 第1図および第2図の如き装置を用いて塗布し
たときの結果を以下に示す。
The present invention relates to a method of applying a liquid, and particularly to a method of applying a thin liquid. Conventionally, when applying a liquid to a running long flexible support, for example, the support is run on a roll surface with high precision, and an extrusion type or slide hopper type liquid injection device is placed on the support. This was accomplished by supplying more coating liquid. However, this method requires a metering pump to adjust the amount of coating, which complicates the design of the equipment, and also causes uneven coating when the traveling speed of the support is slow or the viscosity of the coating liquid is low. It had the disadvantage of being able to The present invention has been made to improve these drawbacks, and is made by suspending the middle part of a cloth-like coating member with self-priming properties via a support shaft, and having one end of the cloth-like coating member suspended in the coating liquid. The present invention relates to a liquid coating method characterized in that the coating liquid is supplied to the coated surface of the support by immersing the support and bringing the other end of the support into contact with the surface to be coated. An embodiment of the present invention will be described below with reference to the drawings. In FIGS. 1 and 2, 1 is a container containing the coating liquid 11, 2 is a cloth-like coating member, 3 is a support shaft for suspending the cloth-like coating member, and 4 is an end edge of the coating member 2. It is a long wick for fixing in the coating liquid. Note that 5 is a long flexible support (hereinafter referred to as support) which runs in the direction of the arrow. Reference numeral 6 denotes a coating liquid outflow hole for keeping the liquid level constant, through which the coating liquid excessively charged into the container 1 from the coating liquid tank (not shown) is discharged.
It is designed to flow out from this outlet. In the drawing, the coating liquid is impregnated into the cloth-like application member by capillary action, and the tip 2 of the cloth-like application member is impregnated with the application liquid.
2, the tip is in contact with the running support, so that a liquid coating is uniformly formed on the support surface. Examples of the cloth-like application member used in the present invention include gauze, synthetic fiber cloth, tricot woven cloth, etc., and materials thereof include organic fibers such as polyester fibers and acrylic fibers, cotton, silk,
Examples include natural fibers such as hemp, glass fibers, and the like. In addition, as a cloth-like coating material, the apparent density is 0.5.
or less (normal lower limit is 0.25), preferably 0.35~
0.48, water content (weight of cloth when saturated with water / weight of cloth when dry x 100) of 200% or more, water absorption (according to JISP No. 8141) of 50 mm or more in 10 minutes, water absorption rate of 10 within seconds,
Particularly used are those having a thickness of 200μ or more (usually the upper limit is 1mm), preferably about 300μ to 500μ. The above water absorption rate is calculated by preparing 5 samples of 10 cm x 10 cm and adding pure water at a temperature of 27°C ± 2°C from a burette for 2 times.
Drop 5 drops of 0.1 ml each from a height of cm, and when the first water drop is dropped, move the stopwatch and measure the time until the water drop on the surface of the sample loses its special reflection (specular reflection of the water drop) and only moisture remains. , this is 1
This is a value calculated by repeating the test five times for the sample and finding the average value. Further, the cloth-like application member is usually rectangular, and the edge where the application member contacts the support is preferably arranged in a direction substantially perpendicular to the longitudinal direction of the support and in a substantially straight line. will be done. Although the mechanism for adjusting the height of the support shaft is not shown in FIGS. 1 and 2 above, this can be easily done by using a known device such as a take-up unit or a stretcher unit. It can be done. In the present invention, the coating thickness of the coating liquid applied onto the support is controlled by the running speed of the support and the amount of the coating liquid flowing out from the tip 22 of the coating member. In addition, the amount of the coating liquid mentioned above depends on the material, structure (form), physical properties of the cloth-like coating member, the viscosity of the coating liquid in the coating atmosphere, the liquid level of the coating liquid, and the highest position of the cloth-like coating member (point H in Fig. 2). ), the above conditions may be determined as appropriate depending on the desired coating thickness. In the present invention, by keeping the coating liquid level constant, a coating film of uniform thickness can be formed on the support. In such a case, means for keeping the liquid level constant are known, for example. The format shown in FIG. 2 described above may be adopted. Further, in the present invention, in order to keep the liquid level constant, various methods can be adopted, such as controlling the support shaft with a microcomputer so that the liquid level difference is kept constant by lowering the support shaft only in the portion where the liquid level has fallen. In the present invention, coating liquids that can be used include:
Any coating liquid may be used as long as it has a viscosity such that it can be impregnated into a cloth-like coating member by capillary action and applied to a moving support, but usually,
Viscosity at coating ambient temperature (e.g. 20℃) is 0.5
to 10 centipoise, preferably 1 to 5 centipoise. The coating liquid should be a non-volatile liquid at room temperature (for example, a vapor pressure of 1 mmHg to 150 mmHg).
mmHg) or a solution is preferably used. Specifically, monomers, oligomers, polymers alone or solutions thereof, solutions of inorganic compounds, acids, alkalis, salts, etc. can be mentioned. The solvents constituting the above solution include water, alcohol, hydrocarbons, halogenated hydrocarbons, ketones,
Examples include esters. Various emulsions and suspensions can also be used as the coating liquid. The running speed of the support in the present invention can be appropriately determined in consideration of the amount of coating liquid that can flow out from the cloth-like coating member, the thickness of the coating liquid to be formed, etc., but it is usually 0.1 m. /min to 10m/min. 3 and 4 show other examples of the present invention, and the explanations of the symbols are the same as those described above. In the present invention, for example, the viscosity of the coating liquid is 1
If the coating thickness to be formed on the support is approximately 10 to 40 microns at ~10 centipoise (measured value at 20°C), use a tricot woven fabric (for example, water absorption of 60 mm,
Polyester tricot woven fabric with 140% water absorption)
It is better to use The results of coating using the apparatus shown in FIGS. 1 and 2 are shown below.

【表】 本発明は以上述べたように、布様塗布部材を使
用し、吸位差を利用して、走行する支持体上に塗
布液を塗布するので、均一な厚みのむらのない塗
膜を簡便且つ連続的に形成することができる。 また支持軸を上下させることにより比較的簡単
な操作で塗布量を調節することができる。
[Table] As described above, the present invention uses a cloth-like coating member and utilizes the adsorption difference to coat the coating liquid onto the moving support, so that a coating film with a uniform thickness and no unevenness can be obtained. It can be formed easily and continuously. Furthermore, by moving the support shaft up and down, the amount of coating can be adjusted with a relatively simple operation.

【図面の簡単な説明】[Brief explanation of the drawing]

第1図は本発明の塗布方法の例を説明するため
の説明図で斜視図として示されている。第2図は
第1図の縦断面図、第3図および第4図は本発明
の塗工方法の他の例を示す説明図である。 11……塗布液、2……布様塗布部材、3……
支持軸、5……走行する支持体。
FIG. 1 is an explanatory diagram for explaining an example of the coating method of the present invention, and is shown as a perspective view. FIG. 2 is a longitudinal sectional view of FIG. 1, and FIGS. 3 and 4 are explanatory diagrams showing other examples of the coating method of the present invention. 11... Coating liquid, 2... Cloth-like coating member, 3...
Support shaft, 5... Running support.

Claims (1)

【特許請求の範囲】[Claims] 1 自吸性を有する布様塗布部材の中間部を、支
持軸を介して懸架させると共に、その一端縁部を
塗布液中に浸漬し、他端縁部を走行する長尺可撓
性支持体表面に接触させることを特徴とする液体
の塗布方法。
1. A long flexible support in which the middle part of a self-priming cloth-like coating member is suspended via a support shaft, one edge of which is immersed in a coating liquid, and the other edge of which runs. A method of applying a liquid, characterized by bringing it into contact with a surface.
JP2913281A 1981-02-27 1981-02-27 Coating method Granted JPS57144063A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2913281A JPS57144063A (en) 1981-02-27 1981-02-27 Coating method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2913281A JPS57144063A (en) 1981-02-27 1981-02-27 Coating method

Publications (2)

Publication Number Publication Date
JPS57144063A JPS57144063A (en) 1982-09-06
JPS6148995B2 true JPS6148995B2 (en) 1986-10-27

Family

ID=12267764

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2913281A Granted JPS57144063A (en) 1981-02-27 1981-02-27 Coating method

Country Status (1)

Country Link
JP (1) JPS57144063A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6691579B2 (en) 2001-05-07 2004-02-17 Respironics, Inc. Portable pressure transducer, pneumotach for use therewith, and associated methods

Also Published As

Publication number Publication date
JPS57144063A (en) 1982-09-06

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