JPH11179274A - Method of removing coating liquid - Google Patents
Method of removing coating liquidInfo
- Publication number
- JPH11179274A JPH11179274A JP35522297A JP35522297A JPH11179274A JP H11179274 A JPH11179274 A JP H11179274A JP 35522297 A JP35522297 A JP 35522297A JP 35522297 A JP35522297 A JP 35522297A JP H11179274 A JPH11179274 A JP H11179274A
- Authority
- JP
- Japan
- Prior art keywords
- web
- roller
- coating
- coating liquid
- thick
- 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
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、ウエブに塗布され
た塗布液の厚塗り部分を除去することができる塗布液除
去方法に関するもので、例えば、感光材料の製造工程に
おいて、感光層を長尺ウエブに連続的に塗布する工程な
どに適用可能なものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a coating liquid removing method capable of removing a thick coating portion of a coating liquid applied to a web. The method can be applied to a step of continuously coating the web.
【０００２】[0002]
【従来の技術】写真材料は一般にハロゲン化銀粒子を懸
濁し、写真特性、生産性を整える添加剤を含有した親水
性コロイド（例えばゼラチン）を、ポリエチレンテレフ
タレートあるいはポリエチレン被覆紙の如き可撓性の長
尺ウエブに連続的に塗布、乾燥して製造される。写真材
料を構成する写真層をウエブに塗布する方法として初期
的には浸漬法、ダブルロール法、エアドクタ法等が用い
られ、多量の塗布液を同時に高速度で塗布したいという
要請の下にスライドホッパー法及びカーテン塗布法等が
開発され、現在これらの塗布方法が主流を占めるに到っ
ている。2. Description of the Related Art Photographic materials generally contain a hydrophilic colloid (for example, gelatin) containing silver halide grains suspended therein and containing additives for adjusting photographic properties and productivity, and a flexible colloid such as polyethylene terephthalate or polyethylene-coated paper. It is manufactured by continuously applying it to a long web and drying it. Initially, a dipping method, a double-roll method, an air doctor method, or the like is used as a method of applying a photographic layer constituting a photographic material to a web, and a slide hopper has been demanded to apply a large amount of a coating solution simultaneously at a high speed. A coating method and a curtain coating method have been developed, and these coating methods have now become mainstream.
【０００３】スライドホッパー法は、１液以上の塗布液
を塗布液流延供給台（ダイス）に設けられたスリットか
ら連続した幅広リボンとして押出し、ダイスの塗布液流
延面（スライド面）の終縁に近接して走行するウエブ面
に前記塗布液の単層もしくは積層リボンを差渡してビー
ドを形成し、塗布液の流延速度とこのリボンをビードよ
り持去るウエブの走行速度とを整合させて、ウエブ上に
単層もしくは積層の塗膜を塗布するものである。なお一
般に、走行するウエブはダイス端（スライド終縁）に近
接して設けられた塗布ローラに張架される。In the slide hopper method, one or more coating liquids are extruded as continuous wide ribbons from slits provided in a coating liquid casting supply stand (die), and the coating liquid is cast on the end of the coating liquid casting surface (slide surface) of the die. A bead is formed by passing a single-layer or laminated ribbon of the coating liquid on the web surface running close to the edge, and matching the casting speed of the coating liquid with the running speed of the web removing the ribbon from the bead. Thus, a single-layer or multilayer coating film is applied on the web. In general, the running web is stretched around an application roller provided in the vicinity of a die end (slide end edge).
【０００４】従ってこのように構成されたスライドホッ
パー法では、塗布液供給量とウエブの走行速度（塗布速
度）とは完全に整合していることが必須条件であるが、
終始に亘って必ずしも満足させることは困難であり、更
にウエブとダイス端間に差渡される塗布液ビードの形成
方法は塗膜の均一性、乾燥仕上がりに大きな影響を及ぼ
す。Therefore, in the slide hopper method configured as described above, it is essential that the supply amount of the coating liquid and the traveling speed of the web (coating speed) are completely matched.
It is difficult to satisfy the condition all the time, and the method of forming the coating liquid bead that is passed between the web and the die has a great influence on the uniformity of the coating film and the dry finish.
【０００５】即ちウエブ上に塗布された塗膜はウエブ塗
膜全域に亘って観察すると、塗布液の表面張力、比重、
粘度あるいはウエブの吸水性、表面粗さ、平面性によっ
て様々な膜厚に関するパターンを現出し、それぞれのパ
ターンに対してそれぞれの技術的対策が必要である。特
に共通パターンとして定常的に現出し易い膜厚パターン
は、塗布初期、すなわち塗布液の単層もしくは積層リボ
ンを差渡してビードを形成した時点からの若干のウエブ
区間及びウエブの接合部分に生じる厚膜部分、または塗
布終了時、すなわち塗布液ビードをウエブから引離した
塗膜終端部及びこの終端部からの紐状尾引の厚膜部分、
あるいはウエブの両端（耳と称される）に連続した畝状
の厚膜部分を生ずるパターンである。That is, when the coating film applied on the web is observed over the entire web coating film, the surface tension, specific gravity,
Patterns related to various film thicknesses appear depending on the viscosity or the water absorption of the web, the surface roughness, and the flatness, and respective technical measures are required for each pattern. In particular, the film thickness pattern that is likely to appear constantly as a common pattern is a thickness that occurs in a few web sections and a bonding portion of the web from the initial stage of coating, that is, when a bead is formed by passing a single layer or a laminated ribbon of a coating solution. At the end of the coating, or at the end of coating, that is, at the end of the coating film where the coating liquid bead is separated from the web, and at the end of the coating, a thick film portion of a string-like tail,
Alternatively, it is a pattern in which ridge-shaped thick film portions continuous at both ends (called ears) of the web are formed.
【０００６】前記共通かつ定常的に現出する厚膜部分は
製品化に不適合なロス部分であり製品歩留の面で問題と
なる。しかもこの厚膜部分は一般に製品設計上の正規の
厚みの１．５〜３倍に及び乾燥において余分の乾燥エネ
ルギーと時間を要し大きく生産性を低下させる。The common and constantly appearing thick film portion is a loss portion that is unsuitable for commercialization and poses a problem in terms of product yield. In addition, this thick film portion is generally 1.5 to 3 times the regular thickness in product design, requires extra drying energy and time in drying, and greatly reduces productivity.
【０００７】この厚膜部分の充分な乾燥を怠ると、ウエ
ブを巻き取った場合正常製品部分とくっつきを起し、こ
の正常製品部分を損傷しロスを拡げる。一方においてこ
の厚膜部分に充分な乾燥を施す場合には、前記生産性の
低下あるいは乾燥装置の長大化による設備投資の増大を
招き、かつ正常製品部分に対し乾燥過度となり、ウエブ
のカーリングあるいは写真特性上乾燥圧かぶりその他の
好ましからざる障害を生ずる。If the thick film portion is not sufficiently dried, when the web is wound up, it sticks to the normal product portion, which damages the normal product portion and increases the loss. On the other hand, if sufficient drying is performed on the thick film portion, the productivity is reduced or the equipment investment is increased due to an increase in the length of the drying apparatus, and excessive drying is performed on the normal product portion. Produces drying pressure fog and other undesirable obstacles in character.
【０００８】一方、近年いおいては、更なる高速塗布を
可能にしたカーテン塗布方法の普及がめざましい。この
カーテン塗布方法は、２００ｍ／分以上の高速塗布を可
能にするが、その反面、塗布初期の厚塗りの程度は前記
スライドビード塗布方法に比べて、量的にも面積的（厚
塗り長さ）にも数段大きなものとなっている。量的に
は、正規の塗布量の５〜１０倍、厚塗り部分の長さは数
十メートルにも及ぶ。この程度の厚塗りになれば、もは
や充分に乾燥させることは設備的に困難である。On the other hand, in recent years, a curtain coating method which enables higher-speed coating has been widely spread. This curtain coating method enables high-speed coating of 200 m / min or more, but on the other hand, the degree of thick coating at the initial stage of coating is larger in area (thick coating length) than the slide bead coating method. ) Are also several steps larger. Quantitatively, the thickness is 5 to 10 times the regular application amount, and the length of the thick coating portion is several tens of meters. With such a thick coating, it is no longer possible to sufficiently dry it in terms of equipment.
【０００９】カーテン塗布方法の厚塗りを防止する手段
として、塗布初期にのみ塗布液のカーテン膜を液受け皿
で受ける方法が特開平７−１１６５８１号公報、同平８
−２０１９６１号公報等に開示されているが、厚塗りを
充分に防止することは難しかった。As means for preventing the thick coating in the curtain coating method, a method of receiving a curtain film of a coating liquid in a liquid receiving tray only at the initial stage of coating is disclosed in JP-A-7-116581 and JP-A-Hei-8-81681.
Although it is disclosed in JP-20101961A and the like, it was difficult to sufficiently prevent thick coating.
【００１０】また、厚塗り部分のウエブからの除去につ
いては、特開昭６１−７１８７６号公報にローラを用い
て除去する方法について開示されている。しかし、この
方法はウエブを線接触させて除去するもので、除去能力
が十分ではなかった。また、同公報には、エンドレスベ
ルトを用いた除去方法にいついても開示されているが、
厚塗り部分を充分に除去することはできなかった。特に
カーテン塗布方法における重量厚塗り部の除去には効果
がなかった。また、特開平５−１６８９９９号公報に
は、カーテン塗布方法における厚塗り部を剥離ローラと
バックアップローラとの間隙で除去する方法が開示され
ているが、前記方法と同様に充分に除去できるまでには
至っていなかった。Regarding the removal of the thickly coated portion from the web, Japanese Patent Application Laid-Open No. 61-71876 discloses a method of removing the portion using a roller. However, in this method, the web is removed by line contact, and the removing ability is not sufficient. The publication also discloses a removal method using an endless belt,
The thickly applied portion could not be sufficiently removed. In particular, there was no effect on the removal of the heavy coating portion in the curtain coating method. Also, Japanese Patent Application Laid-Open No. 5-168999 discloses a method of removing a thick coating portion in a gap between a peeling roller and a backup roller in a curtain coating method. Was not reached.
【００１１】[0011]
【発明が解決しようとする課題】本発明は、上記従来技
術の問題点に鑑みてなされたもので、ウエブ上の設定塗
布量より多くなった部分（以下「厚塗り部」という）を
確実に除去することができ、特にカーテン塗布方法にお
ける塗布初期の厚塗り部を除去するのに好適な塗布液除
去方法を提供することを目的とする。SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems of the prior art, and ensures that a portion (hereinafter, referred to as a "thick coating portion") having a coating amount larger than a set application amount on a web is reliably obtained. An object of the present invention is to provide a coating liquid removing method which can be removed, and is particularly suitable for removing a thick coating portion at the initial stage of coating in a curtain coating method.
【００１２】[0012]
【課題を解決するための手段】前記課題を解決するため
に請求項１記載の発明は、連続走行しているウエブに塗
布された塗布液の少なくとも一部をウエブから除去する
方法であって、前記ウエブに塗布された塗布液が未乾燥
の状態で、前記ウエブの搬送方向とは逆に回転するロー
ラを前記ウエブに押し当てることを特徴とする。According to an aspect of the present invention, there is provided a method for removing at least a portion of a coating solution applied to a continuously running web from the web, the method comprising: In a state in which the coating liquid applied to the web is not dried, a roller that rotates in a direction opposite to the transport direction of the web is pressed against the web.
【００１３】請求項２記載の発明は、請求項１記載の塗
布液除去方法において、除去ローラの回転速度は、ウエ
ブの搬送速度と同等以上であることを特徴とする。According to a second aspect of the present invention, in the method for removing a coating liquid according to the first aspect, the rotation speed of the removing roller is equal to or higher than the web transport speed.
【００１４】請求項３記載の発明は、請求項１記載の塗
布液除去方法において、除去ローラをウエブへ押し当て
たときの除去ローラとウエブの抱き角度が３゜以上であ
ることを特徴とする。According to a third aspect of the present invention, in the method for removing a coating liquid according to the first aspect, the holding angle between the removing roller and the web when the removing roller is pressed against the web is 3 ° or more. .
【００１５】[0015]
【発明の実施の形態】以下、図面を参照しながら本発明
にかかる塗布液除去方法の実施の形態について説明す
る。図１において、塗布液を塗布されたウエブ１は、ガ
イドローラ２、３、４を介して搬送方向を水平方向から
右斜め下、左斜め下、水平方向への折り返し、というよ
うに変えられながら搬送されている。ウエブ１は、塗布
液が塗布された後、乾燥工程を経て、図示しない巻き取
りローラに巻き取られており、そのため乾燥工程では一
定のテンションが与えられ、一方向に搬送されている。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of a coating liquid removing method according to the present invention will be described with reference to the drawings. In FIG. 1, a web 1 coated with a coating liquid is changed in a conveying direction from a horizontal direction to a diagonally lower right direction, a diagonally lower left direction, and a horizontal direction by way of guide rollers 2, 3, and 4. Being transported. After the application liquid is applied, the web 1 is wound around a winding roller (not shown) through a drying step, and therefore, in the drying step, a constant tension is applied and the web 1 is conveyed in one direction.
【００１６】図１に示す実施の形態においては、ウエブ
１の各ガイドローラ２、３、４への非接触面であるＢ側
が塗布液の塗布面である。図中の搬送経路は乾燥工程の
一部の段階であり、ウエブ１に塗布された塗布液は未乾
燥の状態である。In the embodiment shown in FIG. 1, the side B, which is a non-contact surface of the web 1 with respect to each of the guide rollers 2, 3, and 4, is an application surface of the application liquid. The transport path in the figure is a part of the drying process, and the coating liquid applied to the web 1 is in an undried state.
【００１７】ガイドローラ３からガイドローラ４に至る
ウエブ１の左斜め下方への搬送路には、ウエブ１の塗布
面側に除去ローラ５が配置されている。除去ローラ５
は、図示しない駆動源により図の矢印のＣ方向、すなわ
ちウエブ搬送方向とは逆方向に回転駆動されるようにな
っている。除去ローラ５は、オイルシリンダ、エアーシ
リンダ、ソレノイド、その他適宜のアクチュエータ１０
によって、ウエブ１の塗布面に接触する位置から、ウエ
ブ１から離間する位置までの範囲で移動させられるよう
になっている。ウエブ１の塗布面Ｂには、塗布が開始さ
れる初期段階あるいはウエブ１の接合部において、厚塗
り部が発生する場合が多い。従って、正常に塗布されて
いるときは、除去ローラ５は、ウエブ１から退避した状
態でウエブ搬送経路近傍で待機しており、かかる厚塗り
部が通過する際にアクチュエータ１０により移動されて
ウエブ１に接触し、厚塗り部分の除去作業を行う。な
お、除去ローラ５の大きさの制限はないが、直径が１０
〜５０ｃｍが適当であり、好ましくは１５〜３０ｃｍ程
度である。A removal roller 5 is disposed on the application surface side of the web 1 on a conveying path from the guide roller 3 to the guide roller 4 obliquely downward and leftward of the web 1. Removal roller 5
Is driven to rotate in the direction indicated by the arrow C in the figure, ie, in the direction opposite to the web transport direction, by a drive source (not shown). The removing roller 5 includes an oil cylinder, an air cylinder, a solenoid, and other appropriate actuators 10.
Thus, the web 1 can be moved in a range from a position in contact with the coating surface of the web 1 to a position away from the web 1. On the application surface B of the web 1, a thick coating portion often occurs at an initial stage when the application is started or at a joint portion of the web 1. Therefore, when the coating is normally performed, the removing roller 5 is in a standby state near the web transport path while being retracted from the web 1, and is moved by the actuator 10 when the thick coating portion passes, and the web 1 is removed. To remove the thick coating. The size of the removing roller 5 is not limited, but the diameter is 10 mm.
５０50 cm is suitable, preferably about 15-30 cm.
【００１８】本発明にかかる塗布液除去方法において
は、乾燥工程において平面走行若しくは曲面折り返し走
行する塗布液を塗布されたウエブの塗布液の塗布面にウ
エブ搬送方向とは逆方向に回転している除去ローラ５を
押し当てて一定の抱き角度をもたせることにより、厚塗
り部の塗布液を削り取り、除去するというものである。
ここで、抱き角度とは、ウエブとローラが接触する部分
の円弧の中心角度である。詳細には、図２に示す角度θ
をいう。ウエブ１の厚塗り部は、一般に塗布の初期段階
あるいはウエブ１の接合部において特に生じやすく、こ
の厚塗り部の検知には所定のセンサを用いる。このセン
サと連動したエアシリンダーやソレノイド等のアクチュ
エータ１０により除去ローラ５をウエブ１に押し当てて
厚塗り部の除去作業を行い、その後ウエブ１から除去ロ
ーラ５を退避させる。図１において、２点鎖線５Ａで示
されている除去ローラ５は退避状態の位置を示したもの
で、実線で示されている除去ローラ５は除去作業を行う
際の位置を示したものである。また、点線１Ａで示され
たウエブ１は通常走行時の位置を示したもので、実線で
示されたウエブ１は塗布液除去作業を行っている場合の
走行位置を示したものである。In the method for removing a coating liquid according to the present invention, in the drying step, the coating surface of the web coated with the coating liquid that travels on a plane or on a curved surface is rotated in a direction opposite to the web transport direction. By pressing the removing roller 5 to give a certain holding angle, the coating liquid in the thick coating portion is scraped off and removed.
Here, the holding angle is the center angle of the arc of the portion where the web and the roller are in contact. Specifically, the angle θ shown in FIG.
Say. The thick-coated portion of the web 1 is generally particularly likely to occur at the initial stage of coating or at the joint portion of the web 1, and a predetermined sensor is used for detecting the thick-coated portion. The removal roller 5 is pressed against the web 1 by an actuator 10 such as an air cylinder or a solenoid interlocked with this sensor to remove the thick coating portion, and then the removal roller 5 is retracted from the web 1. In FIG. 1, the removal roller 5 indicated by a two-dot chain line 5A indicates a position in a retracted state, and the removal roller 5 indicated by a solid line indicates a position when performing a removal operation. . The web 1 indicated by a dotted line 1A indicates a position during normal running, and the web 1 indicated by a solid line indicates a running position when a coating liquid removing operation is being performed.
【００１９】このような塗布液除去作業において、除去
ローラ５をウエブ１に押し当てる際には、均一に押し当
てることが好ましい。また、ウエブ１に除去ローラ５を
当接させ、余分な塗布液を削り取るタイミングとして
は、塗布液が完全に乾燥する前である。塗布液の種類に
よって異なるが、乾燥初期であることが望ましい。In such a coating liquid removing operation, when the removing roller 5 is pressed against the web 1, it is preferable that the removing roller 5 be pressed uniformly. The timing at which the removing roller 5 is brought into contact with the web 1 to remove excess coating liquid is before the coating liquid is completely dried. Although it depends on the type of the coating liquid, it is preferable that the drying is in the initial stage.
【００２０】さらに、除去ローラ５の表面は鏡面である
ことが望ましい。ウエブ１に除去ローラ５を均一に押し
当てることができるからである。また、除去ローラ５が
鏡面であると、表面に凹凸がないため、除去ローラ５の
掃除がし易く、保守管理上便利だからである。Further, the surface of the removing roller 5 is desirably a mirror surface. This is because the removal roller 5 can be uniformly pressed against the web 1. Further, if the removing roller 5 has a mirror surface, there is no unevenness on the surface, so that the removing roller 5 can be easily cleaned and is convenient for maintenance management.
【００２１】本発明においては、除去ローラ５の回転速
度（周速度）は、ウエブ１の搬送速度と同等以上である
ことが好ましい。これは、除去ローラ５は、厚塗り部の
除去を終えた後はウエブから退避するが、このとき除去
ローラ５の回転速度がウエブ搬送速度よりも遅いと、除
去した塗布液が除去ローラ５の離れ際に再びウエブに付
着してしまうといった問題が生じるからである。このた
め、少なくとも除去ローラ５の回転速度は、ウエブの搬
送速度と同等以上とすることが好ましい。このようにロ
ーラの周速を速くすることによって、除去能力が向上
し、ローラが支持体から離脱するときに除去した塗布物
が支持体に再付着するのを防止できる。なお、除去ロー
ラ５の回転速度をウエブ搬送速度よりも大きくする場合
は、ウエブ搬送速度の２倍程度までが適当である。In the present invention, the rotation speed (peripheral speed) of the removing roller 5 is preferably equal to or higher than the transport speed of the web 1. This is because the removing roller 5 retreats from the web after finishing the removal of the thick coating portion. At this time, if the rotation speed of the removing roller 5 is lower than the web transport speed, the removed coating liquid is removed by the removing roller 5. This is because there is a problem that the toner adheres to the web again when leaving. For this reason, it is preferable that at least the rotation speed of the removing roller 5 is equal to or higher than the web transport speed. By increasing the peripheral speed of the roller in this manner, the removing ability is improved, and the applied material removed when the roller separates from the support can be prevented from re-adhering to the support. When the rotation speed of the removing roller 5 is set to be higher than the web transfer speed, it is appropriate that the rotation speed is about twice the web transfer speed.
【００２２】また、本発明においては、除去ローラ５を
ウエブ１へ押し当てたときの抱き角度が３゜以上である
ことを必要としている。なお、除去ローラ５とウエブ１
の抱き角度は、塗布液の種類にもよるが、３〜９０゜の
範囲とし、好ましくは５〜５０゜である。Further, in the present invention, the holding angle when the removing roller 5 is pressed against the web 1 needs to be 3 ° or more. The removal roller 5 and the web 1
The hugging angle is in the range of 3 to 90 °, preferably 5 to 50 °, depending on the type of the coating liquid.
【００２３】除去ローラ５で削り取られた塗布液は、塗
布液回収容器６内に一時的に溜められ、一定量が溜まっ
た場合、ポンプ７によって汲み出され、処分される。除
去ローラ５のウエブ１とは反対側には、スプレー８とブ
レード９が設けられ、除去された塗布液を除去ローラ５
からはぎ取り、除去ローラ５をクリーニングする役目を
果たしている。The coating liquid scraped off by the removing roller 5 is temporarily stored in a coating liquid recovery container 6, and when a certain amount is stored, it is pumped out by a pump 7 and disposed. A spray 8 and a blade 9 are provided on the side of the removing roller 5 opposite to the web 1 to remove the removed coating liquid.
The roller plays a role of cleaning the removing roller 5.
【００２４】また、図示したガイドローラ２、３、４、
除去ローラ５、塗布液回収容器６、スプレー８、ブレー
ド９はあくまでも例示であり、これらの形状、配置に限
られたものではなく、適宜設計変更可能である。The illustrated guide rollers 2, 3, 4,
The removal roller 5, the coating liquid recovery container 6, the spray 8, and the blade 9 are merely examples, and are not limited to these shapes and arrangements, and can be appropriately designed and changed.
【００２５】[0025]
【発明の効果】請求項１記載の発明によれば、連続走行
しているウエブに塗布された塗布液の少なくとも一部を
ウエブから除去する方法であって、前記ウエブに塗布さ
れた塗布液が未乾燥の状態で、前記ウエブの搬送方向と
は逆に回転するローラを前記ウエブに押し当てるように
したため、余分な塗布液を効率よく除去することがで
き、除去能力を向上させることができる。According to the first aspect of the present invention, there is provided a method for removing at least a part of a coating solution applied to a continuously running web from the web, wherein the coating solution applied to the web is removed. Since the rollers rotating in the direction opposite to the web transport direction are pressed against the web in an undried state, the excess coating liquid can be efficiently removed, and the removing ability can be improved.
【００２６】請求項２記載の発明によれば、請求項１記
載の発明において、除去ローラの回転速度は、ウエブの
搬送速度と同等以上であるようにしたため、除去ローラ
の周速を速くすることによって、除去能力が向上し、ロ
ーラが支持体から離脱するときに除去した塗布物が支持
体に再付着するのを防止することができる。According to the second aspect of the present invention, in the first aspect of the invention, the peripheral speed of the removing roller is increased because the rotation speed of the removing roller is equal to or higher than the web transport speed. Thereby, the removing ability is improved, and the applied material removed when the roller is separated from the support can be prevented from re-adhering to the support.
【００２７】請求項３記載の発明によれば、請求項１記
載の発明において、除去ローラをウエブへ押し当てたと
きの除去ローラとウエブの抱き角度が３゜以上としたた
め、除去能力をより向上させることができる。According to the third aspect of the present invention, in the first aspect of the present invention, the angle between the removing roller and the web when the removing roller is pressed against the web is 3 ° or more, so that the removing ability is further improved. Can be done.
【図１】本発明にかかるウェブ自動巻取装置の実施の形
態の全体構成を示す模式図である。FIG. 1 is a schematic view showing an entire configuration of an embodiment of an automatic web take-up device according to the present invention.
【図２】ウエブとローラの抱き角度を示す模式図であ
る。FIG. 2 is a schematic diagram showing a holding angle between a web and a roller.
１ ウエブ ５ 除去ローラ 1 Web 5 Removal roller
Claims (3)
布液の少なくとも一部をウエブから除去する方法であっ
て、前記ウエブに塗布された塗布液が未乾燥の状態で、
前記ウエブの搬送方向とは逆に回転するローラを前記ウ
エブに押し当てることを特徴とする塗布液の除去方法。1. A method for removing at least a part of a coating liquid applied to a continuously running web from a web, wherein the coating liquid applied to the web is undried.
A method of removing a coating liquid, wherein a roller rotating in a direction opposite to a direction in which the web is transported is pressed against the web.
搬送速度と同等以上であることを特徴とする請求項１記
載の塗布液除去方法。2. The coating liquid removing method according to claim 1, wherein a rotation speed of the removing roller is equal to or higher than a web transport speed.
きの除去ローラとウエブの抱き角度が３゜以上であるこ
とを特徴とする請求項１記載の塗布液除去方法。3. The coating liquid removing method according to claim 1, wherein an angle between the removing roller and the web when the removing roller is pressed against the web is 3 ° or more.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP35522297A JP3685611B2 (en) | 1997-12-24 | 1997-12-24 | Coating liquid removal method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP35522297A JP3685611B2 (en) | 1997-12-24 | 1997-12-24 | Coating liquid removal method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH11179274A true JPH11179274A (en) | 1999-07-06 |
| JP3685611B2 JP3685611B2 (en) | 2005-08-24 |
Family
ID=18442669
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP35522297A Expired - Fee Related JP3685611B2 (en) | 1997-12-24 | 1997-12-24 | Coating liquid removal method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3685611B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI555582B (en) * | 2010-12-02 | 2016-11-01 | Fuji Kikai Kogyo Kk | Intermittent coating device |
-
1997
- 1997-12-24 JP JP35522297A patent/JP3685611B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JP3685611B2 (en) | 2005-08-24 |
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