JPH1147660A - Coating system - Google Patents
Coating systemInfo
- Publication number
- JPH1147660A JPH1147660A JP21056597A JP21056597A JPH1147660A JP H1147660 A JPH1147660 A JP H1147660A JP 21056597 A JP21056597 A JP 21056597A JP 21056597 A JP21056597 A JP 21056597A JP H1147660 A JPH1147660 A JP H1147660A
- Authority
- JP
- Japan
- Prior art keywords
- coating
- support
- coater
- supporting body
- displacement
- 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
Landscapes
- Coating Apparatus (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は塗布手段としてのエ
クストルージョン型コータヘッドと被塗布支持体との間
隔を制御して均一な塗布がなされるようにした塗布シス
テムに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a coating system in which the distance between an extrusion type coater head as a coating means and a substrate to be coated is controlled so that uniform coating can be performed.
【０００２】[0002]
【従来の技術】従来より所定の塗布液を可撓性の支持体
表面に塗布する方法が種々検討され、行われている。そ
の各種塗布方式の中で、例えば移動中の支持体表面に向
けて連続的に押し出した塗布液を、支持体表面に均一な
厚さをもって薄膜塗布するエクストルージョン型塗布装
置は、他の例えばリバースロール、キスロール、グラビ
ヤロール等のロール型塗布方式に対して、塗布の均一
性、薄膜性、塗布可能速度範囲で優れた点が多い。ま
た、エクストルージョン型塗布方式はいわゆるウェット
・オン・ウエットによる同時重層塗布が可能であり、最
近の付加価値の高い塗布製品の製法用途にコスト及び性
能面で非常に有効である。2. Description of the Related Art Various methods for applying a predetermined coating solution to the surface of a flexible support have been studied and performed. Among the various coating methods, for example, an extrusion-type coating apparatus that applies a coating liquid continuously extruded toward a moving support surface with a uniform thickness on the support surface is another type such as a reverse coating apparatus. Compared with roll-type coating methods such as rolls, kiss rolls, and gravure rolls, there are many points that are excellent in coating uniformity, thin film properties, and a possible coating speed range. In addition, the extrusion-type coating method enables simultaneous multi-layer coating by so-called wet-on-wet, and is very effective in terms of cost and performance in the production of high value-added coated products recently.
【０００３】[0003]
【発明が解決しようとする課題】しかし、バックロール
上に保持された連続的に走行する支持体上に予め重層さ
れた塗布液を塗布する方法では、バックロールの回転ブ
レ精度が不十分で塗布長手方向に塗布ムラが生じやすく
最適な塗布ができにくかった。However, in the method of applying a coating liquid which has been previously layered on a continuously running support held on a back roll, the rotation deviation of the back roll is insufficient and the coating accuracy is insufficient. Coating unevenness was likely to occur in the longitudinal direction, making it difficult to perform optimum coating.
【０００４】そこでバックロールでの支持を行わずに、
エクストルージョン型塗布を行うと支持体の平面性の影
響を受ける。即ち、バックロールで支持されていれば支
持体がある程度変形していてもバックロールに巻き付く
ことで変形の影響はほとんど無くなるが、バックロール
の支持なしでは支持体は変形したままコーター部へ搬送
され、この変形部分に塗布することで塗布膜厚の均一性
が著しく損なわれ、時には未塗布部分即ちいわゆる塗布
抜けと呼ばれる故障を生じることがある。[0004] Therefore, without supporting with a back roll,
Extrusion coating is affected by the flatness of the support. In other words, even if the support is deformed to some extent, the effect of the deformation is almost eliminated by wrapping it around the back roll if it is supported by the back roll, but without the support of the back roll, the support is transported to the coater without deformation. Then, the application to the deformed portion remarkably impairs the uniformity of the applied film thickness, and sometimes causes a failure called an uncoated portion, that is, a so-called coating omission.
【０００５】これに対して従来は支持体の変形量にある
基準を設けて支持体を塗布前に検査し基準より変形の小
さい支持体のみ使用したり、支持体そのものの平面性の
向上を試み該平面性の良いもののみを使用したりしてい
た。On the other hand, conventionally, a reference is provided for the amount of deformation of the support, and the support is inspected before coating, and only the support having less deformation than the reference is used, or the flatness of the support itself is improved. Only those having good flatness have been used.
【０００６】このようにバックロールで支持せずに安定
した均一塗布を行うには、均一な支持体への適用が前提
であるが、それでも支持体搬送方向に直角な幅方向の不
均一な支持体変形には対処できなかった。したがって本
発明は、支持体に幅方向に不均一な変形があっても塗布
膜厚の不均一や塗布抜けの発生がなく、製品歩留まりを
向上させ、更には支持体を限定することなく、適応品種
の巾を広げて製品不良量を少なくすることのできるエク
ストルージョン型塗布システムを提供することを課題目
的にする。[0006] In order to perform stable and uniform coating without supporting with a back roll as described above, application to a uniform support is premised. However, uneven support in the width direction perpendicular to the direction of transport of the support is still required. I could not cope with body deformation. Therefore, the present invention does not cause uneven coating film thickness and coating omission even if the support has uneven deformation in the width direction, improves product yield, and furthermore, adapts without limiting the support. An object of the present invention is to provide an extrusion-type coating system capable of reducing the amount of defective products by widening the variety of products.
【０００７】[0007]
【課題を解決するための手段】本発明の上記目的は次の
技術手段（１）〜（３）項の何れかによって達成され
る。The above object of the present invention is achieved by any of the following technical means (1) to (3).
【０００８】（１） 連続搬送される支持体に対して塗
布を行う塗布システムにおいて、前記支持体を搬送する
搬送系と、前記支持体に塗布を行う塗布手段と、該塗布
手段から見て搬送方向上流側に位置し前記支持体の幅手
方向の変位を測定する変位測定手段と、前記塗布手段か
ら見て搬送方向下流側に位置し前記支持体の幅手方向の
膜厚分布を測定する膜厚測定手段とを有し、前記変位測
定手段及び前記膜厚測定手段の測定結果に応じて、前記
塗布手段と前記支持体との間隙を制御することを特徴と
する塗布システム。(1) In a coating system for coating a continuously transported support, a transport system for transporting the support, a coating unit for coating the support, and a transport as viewed from the coating unit. Measuring means for measuring the displacement of the support in the width direction, which is positioned on the upstream side in the direction, and measuring the film thickness distribution in the width direction of the support, which is positioned on the downstream side in the transport direction viewed from the coating means. A coating system, comprising: a film thickness measuring unit, wherein a gap between the coating unit and the support is controlled according to a measurement result of the displacement measuring unit and the film thickness measuring unit.
【０００９】（２） 前記変位測定手段は前記支持体の
面に垂直な方向の変位を測定することを特徴とする
（１）項に記載の塗布システム。(2) The coating system according to item (1), wherein the displacement measuring means measures a displacement in a direction perpendicular to a surface of the support.
【００１０】（３） 前記変位測定手段は前記支持体の
幅手方向の傾きを測定することを特徴とする（１）項又
は（２）項に記載の塗布システム。(3) The coating system according to the above mode (1) or (2), wherein the displacement measuring means measures the inclination of the support in the width direction.
【００１１】[0011]
【発明の実施の形態】本発明の実施の形態の一例を図１
の塗布システムの構成図によって説明する。FIG. 1 shows an example of an embodiment of the present invention.
This will be described with reference to the configuration diagram of the coating system.
【００１２】長尺支持体ロールＷ１から駆動ローラ（図
示せず）によって巻き出される支持体Ｗは、ガイドロー
ラ６１、塗布手段としてのコータ５０、ガイドローラ６
２を経て塗布物が塗布され、セット及び乾燥部を経て巻
取軸へ塗布乾燥済みの長尺製品ロールＷ２として巻き取
られる。The support W unwound from the long support roll W1 by a driving roller (not shown) includes a guide roller 61, a coater 50 as an application means, and a guide roller 6.
The coated product is applied through the second unit 2 and is wound as a long product roll W2 having been applied and dried on a winding shaft via a setting and drying unit.
【００１３】そしてコータ５０及びガイドローラ６１の
更に上流側にはベースのツレ（傾き）を測定する変位セ
ンサー８１及び／又はテンションメータ８５が配置さ
れ、コータ５０及びガイドローラ６２の更に下流側には
膜厚測定器９１が配置されている。Further, a displacement sensor 81 and / or a tension meter 85 for measuring the skew (tilt) of the base are disposed further upstream of the coater 50 and the guide roller 61, and further downstream of the coater 50 and the guide roller 62. A film thickness measuring device 91 is provided.
【００１４】本発明は、前記コータ５０に対して、ベー
スのツレ（傾き）を測定する変位センサー８１及び／又
はテンションメータ８５の測定情報がフィードフォーワ
ードされ、膜厚測定器９１の測定情報がフィードバック
されることにより、コータ５０を傾け該コータ５０と支
持体との間の間隔が一定になるように制御されるシステ
ムである。このように制御されることにより、支持体の
幅手方向の変位やそれによる傾きに左右されずに常に一
定の膜厚が保たれるように塗布が行われる。According to the present invention, the measurement information of the displacement sensor 81 and / or the tension meter 85 for measuring the skew (tilt) of the base is fed forward to the coater 50, and the measurement information of the film thickness measuring device 91 is transmitted to the coater 50. The feedback control is a system in which the coater 50 is tilted and the distance between the coater 50 and the support is controlled to be constant. By performing such control, the coating is performed so as to always maintain a constant film thickness without being affected by the displacement of the support in the width direction or the inclination due to the displacement.
【００１５】前記変位センサー８１としては、接触式変
位センサー、超音波式変位センサー、レーザ式変位セン
サーが好ましく用いられ、直接支持体の幅手方向の変位
が測定される。As the displacement sensor 81, a contact displacement sensor, an ultrasonic displacement sensor, and a laser displacement sensor are preferably used, and the displacement of the support in the width direction is directly measured.
【００１６】また、間接的に前記支持体Ｗのツレ（傾
き）を測定する手段としてテンションメータ８５があ
る。更にＥＰＣセンサー（エッジポジションコントロー
ルセンサー）を用いて支持体の幅手方向エッジの位置の
動きを検知することにより、支持体Ｗのツレ（傾き）を
間接的に把握可能になる。There is a tension meter 85 as a means for indirectly measuring the deviation (tilt) of the support W. Further, by detecting the movement of the position of the edge in the width direction of the support using the EPC sensor (edge position control sensor), it is possible to indirectly grasp the deviation (tilt) of the support W.
【００１７】そして変位は支持体面に垂直な方向の変位
を測定するものであり、前記直接式のものを用い、傾き
は支持体面のコータ幅手方向の押し出し口に対しての平
行状態を保つように予めコータ５０の上流側で支持体Ｗ
の傾きを測定して、それをフィードフォーワードして是
正しようとするものであり、前記間接的なテンションメ
ータ８５やＥＰＣセンサーによって測定される。The displacement is to measure the displacement in the direction perpendicular to the surface of the support, and the direct type is used, and the inclination is such that the support is parallel to the extrusion opening in the width direction of the coater. The support W is provided upstream of the coater 50 in advance.
Is measured, and the inclination is corrected by feedforward, and is measured by the indirect tension meter 85 or the EPC sensor.
【００１８】また、直接式のもの、又は間接式のものの
どちらか一方を用いてフィードフォーワード制御しても
良く、両者を用いて該制御をしても良い。Also, feedforward control may be performed using either the direct type or the indirect type, or the control may be performed using both.
【００１９】前記膜厚測定器としては、オンラインで測
定できるものが必要であり、膜厚濃度計が好ましく用い
られる。その他透過式、反射式を問わず幅手方向の膜厚
分布が測定可能な検査器が使用可能である。また、膜厚
測定器に使用される放射線としては、Ｘ線、赤外線、β
線等が可能である。As the film thickness measuring device, one capable of online measurement is required, and a film thickness densitometer is preferably used. In addition, an inspection device capable of measuring the film thickness distribution in the width direction regardless of the transmission type or the reflection type can be used. The radiation used in the film thickness measuring instrument is X-ray, infrared ray, β
Lines and the like are possible.
【００２０】[0020]
【発明の効果】本発明により、支持体に幅手方向に不均
一な変形があっても塗布膜厚の不均一や塗布抜けの発生
がなく、製品歩留まりを向上させ、さらには支持体を限
定することなく、適応品種の巾を広げて製品不良量を少
なくするエクストルージョン型塗布システムが確立し
た。According to the present invention, even if the support has uneven deformation in the width direction, there is no unevenness in the coating film thickness and no coating omission occurs, thereby improving the product yield and further limiting the support. An extrusion-type coating system has been established that expands the range of applicable varieties and reduces the amount of defective products without the need to do this.
【図１】本発明の塗布システムの実施の形態の構成を示
す説明図。FIG. 1 is an explanatory diagram showing a configuration of an embodiment of a coating system of the present invention.
５０ コータ ６１，６２ ガイドローラ ８１ 変位センサー ８５ テンションメータ ９１ 膜厚測定器 Ｗ 支持体 Ｗ１ 長尺支持体ロール Ｗ２ 長尺製品ロール Reference Signs List 50 coater 61, 62 guide roller 81 displacement sensor 85 tension meter 91 film thickness measuring device W support W1 long support roll W2 long product roll
フロントページの続き (72)発明者 飛沢 誠一 東京都日野市さくら町１番地コニカ株式会 社内Continued on the front page (72) Inventor Seiichi Tobizawa 1 Konica Corporation, Sakuracho, Hino-shi, Tokyo
Claims (3)
う塗布システムにおいて、前記支持体を搬送する搬送系
と、前記支持体に塗布を行う塗布手段と、該塗布手段か
ら見て搬送方向上流側に位置し前記支持体の幅手方向の
変位を測定する変位測定手段と、前記塗布手段から見て
搬送方向下流側に位置し前記支持体の幅手方向の膜厚分
布を測定する膜厚測定手段とを有し、前記変位測定手段
及び前記膜厚測定手段の測定結果に応じて、前記塗布手
段と前記支持体との間隙を制御することを特徴とする塗
布システム。1. A coating system for coating a continuously transported support, a transport system for transporting the support, coating means for coating the support, and a transport direction as viewed from the coating means. Displacement measuring means positioned upstream to measure the displacement of the support in the width direction, and a film positioned downstream of the transport direction as viewed from the coating means and measuring the thickness distribution of the support in the width direction. A coating system comprising: a thickness measuring unit; and controlling a gap between the coating unit and the support according to a measurement result of the displacement measuring unit and the film thickness measuring unit.
直な方向の変位を測定することを特徴とする請求項１に
記載の塗布システム。2. The coating system according to claim 1, wherein the displacement measuring means measures a displacement in a direction perpendicular to a surface of the support.
向の傾きを測定することを特徴とする請求項１又は２に
記載の塗布システム。3. The coating system according to claim 1, wherein the displacement measuring unit measures a tilt of the support in a width direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21056597A JP3812075B2 (en) | 1997-08-05 | 1997-08-05 | Application system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21056597A JP3812075B2 (en) | 1997-08-05 | 1997-08-05 | Application system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH1147660A true JPH1147660A (en) | 1999-02-23 |
| JP3812075B2 JP3812075B2 (en) | 2006-08-23 |
Family
ID=16591435
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP21056597A Expired - Fee Related JP3812075B2 (en) | 1997-08-05 | 1997-08-05 | Application system |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3812075B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100449313B1 (en) * | 2002-04-12 | 2004-10-01 | 정덕기 | Liquid coating machine |
| JP2018023954A (en) * | 2016-08-12 | 2018-02-15 | 株式会社テクノスマート | Coating device |
-
1997
- 1997-08-05 JP JP21056597A patent/JP3812075B2/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100449313B1 (en) * | 2002-04-12 | 2004-10-01 | 정덕기 | Liquid coating machine |
| JP2018023954A (en) * | 2016-08-12 | 2018-02-15 | 株式会社テクノスマート | Coating device |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3812075B2 (en) | 2006-08-23 |
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