JP2005185997A - Drying facility - Google Patents

Drying facility Download PDF

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JP2005185997A
JP2005185997A JP2003432858A JP2003432858A JP2005185997A JP 2005185997 A JP2005185997 A JP 2005185997A JP 2003432858 A JP2003432858 A JP 2003432858A JP 2003432858 A JP2003432858 A JP 2003432858A JP 2005185997 A JP2005185997 A JP 2005185997A
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drying
belt
support
coating film
coating
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Daiki Minamino
大樹 南野
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Konica Minolta Medical and Graphic Inc
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a drying facility capable of uniformly drying a coating film in the width direction and free from the occurrence of the difference of quality between the vicinity of both end parts in the coating width direction and the central part. <P>SOLUTION: In the drying facility having a drying zone for drying the coating film formed by applying a coating liquid onto a continuously travelling belt-like supporting body by blowing hot air to the coating film formed while feeding the belt-like supporting body having the coating film thereon, the drying zone has at least one drying box having a hot air supply header in which a blowing port for blowing the hot air to the coating film is arranged, and the distance between both end parts of the belt-like supporting body in the width direction and the inside wall of the drying box is 10 to 40 cm. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

本発明は、連続的に搬送される支持体上に塗布液を塗布して形成された塗膜に乾燥風を吹き付けることにより乾燥させる乾燥ゾーンを有する乾燥装置に関する。   The present invention relates to a drying apparatus having a drying zone for drying a coating film formed by applying a coating solution on a continuously transported support by blowing dry air.

従来より連続走行している帯状支持体に塗布液を塗布する方法としては、各種提案されており、例えばこれらの各種塗布方式については、Edward Cohen、Edgar Gutoff著「Modern Coating and Drying Technology」に述べられている。又、単層塗布のみならず、スライドコーターやエクストルージョンコーターやカーテンコーターなど複数のスリットを有するコーティングダイを用いることにより、同時に重層塗布することも知られている。   Various methods have been proposed as a method for applying a coating solution to a belt-like support that is continuously running. For example, these coating methods are described in Edward Cohen and Edgar Gutoff, “Modern Coating and Drying Technology”. It has been. In addition to single layer coating, it is also known to simultaneously perform multilayer coating by using a coating die having a plurality of slits such as a slide coater, an extrusion coater and a curtain coater.

写真用フィルム・印画紙等の写真感光材料や写真製版材料、磁気記録材料、熱現像感光材料、感圧記録材料等の記録材料、易接着性、易滑性、ガス遮断性、防湿性、制電性、インク受容性等の機能を付与する材料は、コーターから有機溶剤系又は水系の塗布液を連続搬送する帯状支持体の上に塗布して塗膜面を形成し、その後、塗膜を有する帯状支持体は、次工程である乾燥ボックスを有する乾燥装置で乾燥することで製造されている。乾燥ボックスは1つでも良いが通常複数個のボックスを直列に配置し、段階的に乾燥条件を変更してゆくことでより効率的な乾燥を行うことが一般的である。   Photographic materials such as photographic film and photographic paper, photoengraving materials, magnetic recording materials, photothermographic materials, pressure sensitive recording materials, etc., easy adhesion, slipperiness, gas barrier properties, moisture resistance, control A material imparting functions such as electric conductivity and ink acceptability is applied on a belt-like support that continuously conveys an organic solvent-based or aqueous coating solution from a coater to form a coating film surface, and then the coating film is formed. The belt-shaped support body is manufactured by drying with a drying apparatus having a drying box as the next step. Although there may be one drying box, it is general to perform more efficient drying by arranging a plurality of boxes in series and changing the drying conditions step by step.

又、連続走行している支持体に塗布液を塗布した後乾燥する方法としては、先述のEdward Cohen、 Edgar Gutoff著「Modern Coating and Drying Technology」に述べられている各種の方法が提案されてきた。最も一般的には乾燥ボックスに温風を供給し、その温風によって塗膜を乾燥させ、気化した溶媒を気流とともに系外へ排出する方法である。また、可燃性有機溶剤を用いる場合にはエアの代わりに不活性ガスを供給し、実質的に爆発のない安全な仕組みにする装置も知られている。本発明の適用は、温風によって乾燥させる方式、装置であれば、エアであっても、不活性ガスであっても特に限定されない。   In addition, as a method of drying after applying a coating liquid to a continuously running support, various methods described in Edward Cohen and Edgar Gutoff's “Modern Coating and Drying Technology” have been proposed. . The most general method is to supply warm air to a drying box, dry the coating film with the warm air, and discharge the vaporized solvent to the outside of the system together with the air current. In addition, when a flammable organic solvent is used, an apparatus that supplies an inert gas instead of air to make a safe mechanism substantially free of explosion is also known. The application of the present invention is not particularly limited as long as it is a system or apparatus that is dried by warm air, whether it is air or an inert gas.

乾燥工程は、塗布直後の塗膜面を加熱した雰囲気、温風が当たる雰囲気にさらすために、塗膜面の性状に影響を与える重要な工程となっている。一般的に乾燥工程における塗膜面に与える問題として温風が当たることにより塗膜表面が乱され、表面の平滑度を失い、いわゆる吹かれムラが生じたり、乾燥工程内の温度、温風の風量等のバラツキにより乾燥ムラが生じたりすることが知られている。特に、塗膜の幅方向の両端近傍で吹かれムラや斑ムラが生じることが知られている。尚、本発明において溶媒とは、水、有機溶剤を含む。   The drying process is an important process that affects the properties of the coating film surface in order to expose the coating film surface immediately after coating to a heated atmosphere or an atmosphere to which hot air is applied. Generally, as a problem given to the coating film surface in the drying process, the surface of the coating film is disturbed by hitting with hot air, losing the smoothness of the surface, so-called blow unevenness occurs, the temperature in the drying process, It is known that unevenness in drying occurs due to variations in air volume and the like. In particular, it is known that unevenness or unevenness is generated when blown in the vicinity of both ends in the width direction of the coating film. In the present invention, the solvent includes water and an organic solvent.

乾燥が適性に行われなかった場合には、得られる塗膜の外観にムラを生じたり、塗膜中の残留溶媒が適正量でなかったり、残留溶媒量にバラツキを生じたりして、最終的な塗膜品質に影響を与えることが知られている。以下に従来の温風によって乾燥させる方式の乾燥装置の概略を図で説明する。   If drying is not performed properly, the appearance of the resulting coating may become uneven, the residual solvent in the coating may not be appropriate, or the amount of residual solvent may vary. It is known to affect the quality of the coating film. Hereinafter, an outline of a conventional drying apparatus using a warm air will be described with reference to the drawings.

図6は従来の温風吹き出し方式の乾燥ボックスを持つ乾燥装置を用いた乾燥方法の一例を示す概略図である。図6の(a)は複数の温風吹き出し方式の乾燥ボックスを連続的に繋げた乾燥ゾーンを有する乾燥装置を用い、塗布から乾燥までを示す概略図である。図6の(b)は図6の(a)に示される乾燥装置をコーター側から見た時の乾燥ボックス内の乾燥風の流れを示す模式図である。   FIG. 6 is a schematic view showing an example of a drying method using a drying apparatus having a conventional hot air blowing type drying box. FIG. 6 (a) is a schematic view showing the process from application to drying using a drying apparatus having a drying zone in which a plurality of hot air blowing type drying boxes are continuously connected. FIG. 6B is a schematic diagram showing the flow of the drying air in the drying box when the drying apparatus shown in FIG. 6A is viewed from the coater side.

図中、1はバックロール2で保持され、連続搬送する帯状支持体3に塗布液を塗布するコーターを示す。4a〜4cは塗膜を有する帯状支持体3aの搬送(搬送方向は図中の矢印方向)を支持する支持ロールを示す。5は塗膜を有する帯状支持体3aを乾燥する乾燥装置を示す。乾燥装置5は加熱空気により乾燥するエアーモード乾燥方式の乾燥装置、加熱不活性ガスにより乾燥するイナート乾燥方式の乾燥装置のいずれでもかまわない。乾燥装置5は乾燥条件を個別に制御することが可能となっている乾燥ボックス501a、501bを連続的に繋げた乾燥ゾーンを有している。更に詳しくは、乾燥ボックス501aの塗膜を有する帯状支持体3aの入り口506から乾燥ボックス501bの出口507の間を乾燥ゾーンという。乾燥ボックスの数は特に限定はなく、乾燥する塗膜を有する帯状支持体3aの塗膜厚、搬送速度、乾燥温度、乾燥風量等により適宜選択することが可能である。本図では乾燥ボックスが2室の場合を示している。   In the figure, reference numeral 1 denotes a coater that is held by a back roll 2 and applies a coating solution to a belt-like support 3 that is continuously conveyed. 4a-4c shows the support roll which supports conveyance (the conveyance direction is the arrow direction in a figure) of the strip | belt-shaped support body 3a which has a coating film. Reference numeral 5 denotes a drying device for drying the belt-like support 3a having a coating film. The drying device 5 may be either an air mode drying type drying device that dries with heated air or an inert drying type drying device that dries with a heated inert gas. The drying device 5 has a drying zone in which drying boxes 501a and 501b that can individually control the drying conditions are continuously connected. More specifically, the area between the inlet 506 of the belt-like support 3a having the coating film of the drying box 501a and the outlet 507 of the drying box 501b is referred to as a drying zone. The number of drying boxes is not particularly limited, and can be appropriately selected depending on the coating thickness, transport speed, drying temperature, drying air volume, and the like of the belt-like support 3a having a coating to be dried. This figure shows the case where there are two drying boxes.

502a、502bは塗膜を有する帯状支持体3aに温風を供給する温風供給手段である温風供給ヘッダを示す。温風供給ヘッダ502aには、帯状支持体3aの塗膜面に対して対向して設けられた乾燥風の吹出し口502a1と、乾燥風の供給口503aとを有する箱形形状を有している。502a2は吹出し口502a1に設けたスリットノズルを示す。乾燥風供給ヘッダ502bは温風供給ヘッダ502aと同じ構造を有している。   Reference numerals 502a and 502b denote hot air supply headers which are hot air supply means for supplying hot air to the belt-like support 3a having a coating film. The hot air supply header 502a has a box shape having a dry air outlet 502a1 and a dry air supply port 503a provided facing the coating surface of the belt-like support 3a. . Reference numeral 502a2 denotes a slit nozzle provided at the outlet 502a1. The dry air supply header 502b has the same structure as the hot air supply header 502a.

幅方向に略均一な温風を吹き出すために、吹出し口に取り付けられたスリットノズルの代わりに、パンチ板、メッシュ等を使用してもかまわない。   In order to blow out the substantially uniform warm air in the width direction, a punch plate, a mesh, or the like may be used instead of the slit nozzle attached to the outlet.

スリットノズル502a2から塗膜面に供給される乾燥風は、常温から120度程度に加熱された乾燥風を塗膜の種類に応じて適宜選択して使用することが可能となっている。   As the drying air supplied to the coating film surface from the slit nozzle 502a2, it is possible to select and use the drying air heated from room temperature to about 120 degrees depending on the type of the coating film.

504aは乾燥ボックス501aの底面に設けられた排出口を示し、504bは乾燥ボックス501bの底面に設けられた排出口を示す。   Reference numeral 504a denotes a discharge port provided on the bottom surface of the drying box 501a, and reference numeral 504b denotes a discharge port provided on the bottom surface of the drying box 501b.

次に図6の(b)を使って乾燥風の流れについて説明する。尚、図中の矢印は乾燥風の流れの方向を示す。取り入れ口503aより温風供給ヘッダ502aに入った乾燥風は吹出し口502a1のスリットノズル502a2より、塗膜面に対して垂直に吹き出し塗膜面に達する。この後、乾燥風は塗膜面中央部では帯状支持体3aの進行方向、または反進行方向への流れとなり、塗膜から離れた位置で幅手に移動するが、帯状支持体3aの両端部3a1、3a2の流れは両端部3a1、3a2の塗膜近傍では外へ向かって幅手方向の流れとなり帯状支持体3aの両端部3a1、3a2を回り込み排出口504aから排出される。すなわち幅手に均一な乾燥風を供給しても塗膜近傍の空気の流れは端部で幅手方向に流れ、幅手中央部とは異なる乾燥状態となり、幅手で乾燥が不均一となる。乾燥が不均一な場合表面比抵抗やすべり性などの表面物性が不均一になったり、表面光沢が異なることがある他、塗膜中の残留溶媒量が不均一になったり、極端な場合は乾燥が遅れた部分から乾燥が進行した部分への溶媒の移動に伴う塗膜流動故障や膜厚の不均一など製品の品質を均一にすることが出来ない。   Next, the flow of the drying air will be described with reference to FIG. In addition, the arrow in a figure shows the direction of the flow of dry air. The dry air entering the warm air supply header 502a from the intake port 503a is blown out from the slit nozzle 502a2 of the blowout port 502a1 perpendicularly to the coating film surface and reaches the coating film surface. Thereafter, the drying air flows in the direction of travel of the belt-like support 3a in the central portion of the coating surface or in the direction of counter-travel, and moves wide at positions away from the coating, but both ends of the belt-like support 3a. The flow of 3a1, 3a2 becomes a flow in the width direction toward the outside in the vicinity of the coating film of both end portions 3a1, 3a2, wraps around both end portions 3a1, 3a2 of the belt-like support 3a, and is discharged from the discharge port 504a. In other words, even if uniform drying air is supplied to the width, the air flow in the vicinity of the coating film flows in the width direction at the edge, resulting in a dry state different from the width center, and drying is uneven in the width. . If the drying is uneven, the surface properties such as surface resistivity and slip properties may be uneven, the surface gloss may be different, the residual solvent amount in the coating film may be uneven, or in extreme cases The quality of the product cannot be made uniform, such as coating film flow failure or non-uniform film thickness due to the movement of the solvent from the part where drying is delayed to the part where drying has progressed.

図6に示される乾燥風吹き出し方式の乾燥室を持つ乾燥装置(非特許文献1に記載の技術)は以下の欠点を持っている。   The drying apparatus (technique described in Non-Patent Document 1) having a drying chamber of a dry air blowing system shown in FIG. 6 has the following drawbacks.

1)効率よく乾燥させるために気体を吹出し口より強く塗膜に対して吹き出すと、塗膜に、いわゆる吹かれムラが発生することがある。特に塗布時のウェット膜厚が厚い場合にその吹かれムラが発生し易い。   1) When the gas is blown stronger than the blow-off port for efficient drying, so-called blow unevenness may occur in the paint film. In particular, when the wet film thickness at the time of application is thick, the blown unevenness is likely to occur.

2)吹かれムラを防ぐために乾燥ゾーンの気体の流速を弱めた場合、全般的に吹かれムラが改良されるものの、塗膜の幅方向一部に表面性に差が生じたり、さらに悪い場合には、幅方向の一部に乾燥未了で乾燥ゾーンを出てきてしまい、搬送ロールを汚してしまう場合がある。   2) When the gas flow rate in the drying zone is weakened to prevent blown unevenness, the blown unevenness is generally improved, but the surface property is different in part in the width direction of the coating film or worse. In some cases, the drying zone may come out of the width direction without being dried, and the transport roll may be soiled.

これら従来の乾燥方法の欠点を改善するため、塗膜面に対する乾燥風の当て方に関してはこれまでに多くの検討がなされて来た。例えば、特公平1−57276号公報、特開平10−68587号公報には塗膜面に吹き付ける風の角度を規定することにより乾燥の斑ムラを防止した乾燥を行う方法が開示されている。これらの乾燥風の塗膜面への当て方により全体的にはかなり改善はされるのであるが、塗布幅方向の両端近傍に発生する斑ムラ防止には十分な対策となっていない。この、塗布幅方向の両端近傍に発生する斑ムラ防止にはこれまでに対策が取られて来ており、例えば、塗膜面に乾燥風を供給する複数の乾燥風供給装置の幅を塗膜面の幅よりも顕著に長くならないようにし、塗膜の幅方向の両端を越える乾燥風の量を最小限に抑え、塗膜の幅方向の両端近傍に発生する斑ムラを防止することが知られている(例えば特許文献1を参照。)。   In order to improve the drawbacks of these conventional drying methods, many studies have been made on how to apply the drying air to the coating surface. For example, Japanese Patent Publication No. 1-57276 and Japanese Patent Application Laid-Open No. 10-65887 disclose a method of performing drying while preventing unevenness of drying by defining the angle of the wind sprayed on the coating film surface. Although the overall improvement is considerably made by applying these dry winds to the coating surface, it is not a sufficient measure for preventing uneven spots occurring near both ends in the coating width direction. Measures have been taken to prevent uneven spots that occur near both ends in the coating width direction. For example, the width of a plurality of drying air supply devices that supply drying air to the coating surface can be reduced. It is known that it does not become noticeably longer than the width of the surface, minimizes the amount of drying air that crosses both ends of the coating in the width direction, and prevents uneven spots that occur near the ends of the coating in the width direction. (For example, refer to Patent Document 1).

しかしながら、特許文献1に記載の技術の場合、次の欠点が挙げられる。   However, the technique described in Patent Document 1 has the following drawbacks.

1)塗膜上に供給された空気は支持体の外の広い空間に流れ込むことは抑止していないので、塗膜の両端部で幅方向に流れる空気によって乾燥速度が中央部と差が出来、仕上がりが異なることは抑えられない。   1) Since the air supplied onto the coating does not prevent the air from flowing into a wide space outside the support, the drying speed can be different from the center by the air flowing in the width direction at both ends of the coating. It cannot be suppressed that the finish is different.

2)塗布幅が変わる毎に乾燥装置の複数の乾燥風供給装置の幅を変更することが必要になり、煩雑な作業を行わなければならない。   2) Every time the coating width changes, it is necessary to change the widths of the plurality of drying air supply devices of the drying device, and complicated operations must be performed.

この様な状況から、塗布幅を変更しても対応が容易で、塗膜品質を下げることなく、塗布幅方向の両端近傍と中央部とで品質差が発生しない乾燥装置の開発が望まれている。
特表2001−506178号公報
From this situation, it is easy to cope with changing the coating width, and it is desirable to develop a drying device that does not cause quality difference between the vicinity and the center of the coating width direction without lowering the coating film quality. Yes.
JP-T-2001-506178

本発明は、上記状況に鑑みなされたものであり、その目的は、幅手で乾燥が均一で、
塗布幅方向の両端近傍と中央部とで品質差が発生しない乾燥装置を提供することである。
The present invention has been made in view of the above situation, and its purpose is wide and uniform drying,
An object of the present invention is to provide a drying device that does not cause a quality difference between the vicinity of both ends in the coating width direction and the central portion.

本発明の上記目的は、以下の構成により達成された。   The above object of the present invention has been achieved by the following constitution.

(請求項1)
連続的に搬送する帯状支持体上に塗布液を塗布して塗膜を形成した後、該塗膜を有する帯状支持体を搬送しながら温風を吹き付けることにより乾燥する乾燥ゾーンを有する乾燥装置において、
該乾燥ゾーンは前記塗膜に該温風を吹き付ける吹き出し口を配設した温風供給ヘッダを有する少なくとも1つの乾燥ボックスを有し、
該帯状支持体の幅手両端部と該乾燥ボックス内壁との距離が10〜40cmであることを特徴とする乾燥装置。
(Claim 1)
In a drying apparatus having a drying zone in which a coating liquid is formed on a belt-like support that is continuously conveyed to form a coating film and then dried by blowing warm air while conveying the belt-like support having the coating film. ,
The drying zone has at least one drying box having a hot air supply header provided with a blow outlet for blowing the hot air to the coating film;
A drying apparatus characterized in that the distance between the widthwise opposite ends of the belt-like support and the inner wall of the drying box is 10 to 40 cm.

(請求項2)
連続的に搬送する帯状支持体上に塗布液を塗布して塗膜を形成した後、該塗膜を有する帯状支持体を搬送しながら温風を吹き付けることにより乾燥する乾燥ゾーンを有する乾燥装置において、
該乾燥ゾーンは前記塗膜に該温風を吹き付ける吹き出し口を配設した温風供給ヘッダを有する少なくとも1つの乾燥ボックスを有し、
該乾燥ボックス内の該帯状支持体の幅手両端部に沿って、該幅手両端部から2〜40cmの距離に、前記帯状支持体の面と80〜100°で交わる面を持つ遮風板を有することを特徴とする乾燥装置。
(Claim 2)
In a drying apparatus having a drying zone in which a coating liquid is formed on a belt-like support that is continuously conveyed to form a coating film and then dried by blowing warm air while conveying the belt-like support having the coating film. ,
The drying zone has at least one drying box having a hot air supply header provided with a blow outlet for blowing the hot air to the coating film;
A windshield having a surface that intersects the surface of the belt-like support at 80 to 100 ° along a width of both ends of the belt-like support in the drying box at a distance of 2 to 40 cm from both ends of the width. A drying apparatus comprising:

(請求項3)
前記遮風板は、帯状支持体の上面から10〜50cmの高さを有していることを特徴とする請求項2に記載の乾燥装置。
(Claim 3)
The drying apparatus according to claim 2, wherein the wind shielding plate has a height of 10 to 50 cm from an upper surface of the belt-like support.

(請求項4)
連続的に搬送する帯状支持体上に塗布液を塗布して塗膜を形成した後、該塗膜を有する帯状支持体を搬送しながら温風を吹き付けることにより乾燥する乾燥ゾーンを有する乾燥装置において、
該乾燥ゾーンは前記塗膜に該温風を吹き付ける吹き出し口を配設した温風供給ヘッダを有する少なくとも1つの乾燥ボックスを有し、
該乾燥ボックス内の該帯状支持体の幅手両端部に沿って、該幅手両端部から2〜10cmの距離に、前記帯状支持体の上面に対して−4〜+4cmの位置に、該上面と平行な遮風板を有することを特徴とする乾燥装置。
(Claim 4)
In a drying apparatus having a drying zone in which a coating liquid is formed on a belt-like support that is continuously conveyed to form a coating film and then dried by blowing warm air while conveying the belt-like support having the coating film. ,
The drying zone has at least one drying box having a hot air supply header provided with a blow outlet for blowing the hot air to the coating film;
The upper surface at a distance of 2 to 10 cm from both ends of the strip along the widthwise ends of the strip support in the drying box, at a position of −4 to +4 cm with respect to the top surface of the strip support. A drying apparatus characterized by having a wind shield parallel to each other.

(請求項5)
前記遮風板の幅が20〜50cmであることを特徴とする請求項4に記載の乾燥装置。
(Claim 5)
The drying apparatus according to claim 4, wherein a width of the wind shielding plate is 20 to 50 cm.

(請求項6)
連続的に搬送する帯状支持体上に塗布液を塗布して塗膜を形成した後、該塗膜を有する帯状支持体を搬送しながら温風を吹き付けることにより乾燥する乾燥ゾーンを有する乾燥装置において、
該乾燥ゾーンは、前記塗膜に該温風を吹き付ける吹き出し口を配設した温風供給ヘッダを有する少なくとも1つの乾燥ボックスを有し、
該吹き出し口は、該温風の吹き付け方向制御手段を有し、
該吹き付け方向制御手段は、該帯状支持体の両端部への前記塗膜への該温風の吹き付け方向が前記帯状支持体の幅手中央に向けて20〜45°傾斜するように前記吹き出し口に配設されていることを特徴とする乾燥装置。
(Claim 6)
In a drying apparatus having a drying zone in which a coating liquid is formed on a belt-like support that is continuously conveyed to form a coating film and then dried by blowing warm air while conveying the belt-like support having the coating film. ,
The drying zone has at least one drying box having a hot air supply header provided with a blowout port for blowing the hot air on the coating film;
The outlet has a hot air blowing direction control means,
The blowing direction control means includes the blowing port so that the direction in which the hot air is blown onto the coating film on both ends of the belt-like support is inclined by 20 to 45 ° toward the width center of the belt-like support. The drying apparatus characterized by the above-mentioned.

(請求項7)
前記吹き付け方向制御手段は、帯状支持体の両端部から10〜20cmに乾燥風を供給するように吹き出し口の位置に配設されていることを特徴とする請求項6に記載の乾燥装置。
(Claim 7)
The drying apparatus according to claim 6, wherein the spray direction control means is disposed at the position of the outlet so as to supply the drying air from 10 to 20 cm from both ends of the belt-like support.

幅手で乾燥が均一で、塗布幅方向の両端近傍と中央部とで品質差が発生しない乾燥装置を提供することが出来、均一な品質の製品を高良品率で作製することが可能となった。   It is possible to provide a drying device that is uniform in width and dry, and does not cause a quality difference between the ends and the center in the coating width direction, and it is possible to produce products with uniform quality at a high yield rate. It was.

本発明に係る実施の形態を図1〜図4を参照して説明するが、本発明はこれに限定されるものではない。   Embodiments according to the present invention will be described with reference to FIGS. 1 to 4, but the present invention is not limited thereto.

図1は乾燥ボックス内壁と帯状支持体の幅手両端部との距離を狭くした乾燥ボックスを持つ乾燥装置を用いた乾燥方法の一例を示す概略図である。図1の(a)は複数の乾燥ボックス内壁と帯状支持体の幅手両端部との距離を狭くした温風吹き出し方式の乾燥ボックスを連続的に繋げた乾燥ゾーンを有する乾燥装置を用い、塗布から乾燥までを示す概略図である。図1の(b)は図1の(a)に示される乾燥装置をコーター側から見た時の乾燥ボックス内壁と帯状支持体の幅手両端部との距離を示す模式図である。図1の(c)は図1の(b)のFで示される部分の拡大概略図である。   FIG. 1 is a schematic view showing an example of a drying method using a drying apparatus having a drying box in which the distance between the inner wall of the drying box and the widthwise ends of the belt-like support is narrowed. FIG. 1 (a) shows a coating using a drying device having a drying zone in which a plurality of drying box inner walls and a hot air blowing type drying box having a narrow distance between the widthwise ends of the belt-like support are connected continuously. It is the schematic which shows from drying to drying. FIG. 1B is a schematic view showing the distance between the inner wall of the drying box and the both ends of the belt-like support when the drying apparatus shown in FIG. 1A is viewed from the coater side. FIG. 1C is an enlarged schematic view of a portion indicated by F in FIG.

図中、501a1は乾燥ボックス501aの内壁を示す。Pは乾燥ボックス内壁501a1と帯状支持体3aの端部3a1との距離を示す。他の符号は図6と同義である。   In the figure, 501a1 indicates the inner wall of the drying box 501a. P indicates the distance between the inner wall 501a1 of the drying box and the end 3a1 of the belt-like support 3a. Other symbols are the same as those in FIG.

距離Pは10〜40cmである。他の帯状支持体3aの端部3a2も乾燥ボックス501bの内壁との距離は端部3a1と同じとなっている。距離Pが10cm未満の場合は、本来帯状支持体の幅より広い乾燥風吹出し口の幅を狭くする必要があり、結果端部の不均一な吹出し風が塗膜乾燥に使用されることになるため、端部の乾燥進行が中央部と異なり幅手で不均一な品質となってしまうため好ましくない。40cmを越えた場合は、塗膜面上に供給された乾燥風が塗膜の両端部では塗膜面上を幅手方向外側に向かって流れ、中央部の流れと異なってしまうことにより幅手の乾燥が不均一となり、均一な塗膜を得ることが困難になってしまうため好ましくない。   The distance P is 10 to 40 cm. The distance between the end 3a2 of the other belt-like support 3a and the inner wall of the drying box 501b is the same as that of the end 3a1. When the distance P is less than 10 cm, it is necessary to narrow the width of the drying air blowing port which is wider than the width of the belt-like support, and as a result, the uneven blowing air at the end is used for drying the coating film. For this reason, the drying progress at the end portion is not preferable because the width and width are different from the central portion. If it exceeds 40 cm, the drying air supplied onto the coating surface flows on the coating surface toward the outside in the width direction at both ends of the coating film. This is not preferable because drying of the film becomes uneven and it becomes difficult to obtain a uniform coating film.

図1の(b)を使って乾燥風の流れについて説明する。図中の矢印は乾燥風の流れの方向を示す。取り入れ口503aより温風供給ヘッダ502aに入った乾燥風は吹出し口502a1のスリットノズル502a2より、塗膜面に対して垂直に吹き出し塗膜面に達する。この後、本図に示される様に、帯状支持体の両端部と乾燥ボックス内壁との距離を10〜40cmとすることで帯状支持体端部で塗膜面上を乾燥風が幅手方向に流れるのを阻害するため、乾燥風の流れが塗布幅の中央と両端部で同じになり幅手に均一な塗膜を得ることが可能となる。   The flow of the drying air will be described with reference to FIG. The arrows in the figure indicate the direction of the flow of the drying air. The dry air entering the warm air supply header 502a from the intake port 503a is blown out from the slit nozzle 502a2 of the blowout port 502a1 perpendicularly to the coating film surface and reaches the coating film surface. Thereafter, as shown in this figure, the distance between the both ends of the belt-like support and the inner wall of the drying box is set to 10 to 40 cm, so that the drying wind is spread in the width direction on the coating surface at the belt-like support edge. In order to inhibit the flow, the flow of the drying air is the same at the center and both ends of the coating width, and a uniform coating film can be obtained in the width.

図2は帯状支持体の幅方向両端部に遮風板を配設した乾燥ボックスを持つ乾燥装置を用いた乾燥方法の一例を示す概略図である。図2の(a)は帯状支持体の幅手両端部に遮風板を配設した温風吹き出し方式の乾燥ボックスを連続的に繋げた乾燥ゾーンを有する乾燥装置を用い、塗布から乾燥までを示す概略図である。図2の(b)は図2の(a)に示される乾燥装置をコーター側から見た時の帯状支持体の幅手両端部と遮風板との位置を示す模式図である。図2の(c)は図2の(b)のGで示される部分の拡大概略図である。   FIG. 2 is a schematic view showing an example of a drying method using a drying apparatus having a drying box in which wind shielding plates are arranged at both ends in the width direction of the belt-like support. (A) of FIG. 2 uses a drying apparatus having a drying zone continuously connected with a drying box of a hot air blowing system in which wind shielding plates are arranged at both widthwise ends of the belt-like support, from coating to drying. FIG. FIG. 2B is a schematic view showing the positions of the widthwise both ends of the belt-like support and the wind shielding plate when the drying apparatus shown in FIG. 2A is viewed from the coater side. FIG. 2C is an enlarged schematic view of a portion indicated by G in FIG.

図中、508a1は帯状支持体3の幅手端部3a1に沿って乾燥ボックス501aに配設された遮風板を示す。508a2は帯状支持体3の幅手端部3a2に沿って乾燥ボックス501aに配設された遮風板を示す。乾燥ボックス501bにも同じように遮風板が配設されている。Qは帯状支持体3の幅手端部3a1から遮風板508a1までの距離を示す。尚、遮風板508a1までの距離とは遮風板508a1の内面508a12までの距離をいう。距離Qは2〜40cmである。距離Qが2cm未満の場合は、帯状支持体の搬送を支持する支持ロールと干渉する他、帯状支持体の蛇行時に接触する危険があり現実的ではないため好ましくない。距離Qが40cmを越えた場合は、塗膜面上に供給された乾燥風が塗膜の両端部では、塗膜面上を幅手方向外側に向かって流れ、中央部分の流れと異なってしまうことにより、幅手の乾燥が不均一となり、均一な塗膜を得ることが困難となってしまうため好ましくない。   In the figure, reference numeral 508a1 denotes a wind shielding plate disposed in the drying box 501a along the width end portion 3a1 of the belt-like support 3. Reference numeral 508a2 denotes a wind shielding plate disposed in the drying box 501a along the width end portion 3a2 of the belt-like support 3. Similarly, a windshield plate is disposed in the drying box 501b. Q indicates the distance from the wide end 3a1 of the belt-like support 3 to the wind shielding plate 508a1. Note that the distance to the wind shield plate 508a1 refers to the distance to the inner surface 508a12 of the wind shield plate 508a1. The distance Q is 2 to 40 cm. If the distance Q is less than 2 cm, it interferes with the support roll that supports the conveyance of the belt-like support, and there is a risk of contact when the belt-like support is meandering. When the distance Q exceeds 40 cm, the drying air supplied onto the coating film flows on the coating film surface toward the outside in the width direction at both ends of the coating film, which is different from the flow at the center part. As a result, width drying becomes uneven and it becomes difficult to obtain a uniform coating film, which is not preferable.

Rは、帯状支持体の上面から遮風板508a1の上端までの高さを示す。高さRは10〜50cmが好ましい。高さRが10cm未満の場合は、塗膜面上に供給された乾燥風の帯状支持体端部での幅手方向の流れを抑止しきれず、遮風板を乗り越えて幅手方向の流れを生じることがあり、幅手に均一な塗膜を得ることが困難になる場合がある。高さRが50cmを超えた場合、塗膜面上に供給された乾燥風が再び塗膜から離れ幅手に移動する幅手中央付近での流れを阻害することで幅手に不均一な乾燥を生じ、結果として幅手に均一な塗膜を得ることが困難になってしまう場合がある。   R shows the height from the upper surface of a strip | belt-shaped support body to the upper end of the windshield 508a1. The height R is preferably 10 to 50 cm. When the height R is less than 10 cm, the flow in the width direction at the end of the belt-like support of the dry wind supplied on the coating surface cannot be suppressed, and the flow in the width direction is overcome over the windshield. It may occur, and it may be difficult to obtain a uniform coating film in the width. When the height R exceeds 50 cm, the drying air supplied onto the coating surface is separated from the coating film again, and the flow near the center of the width where it moves to the width is obstructed. As a result, it may be difficult to obtain a uniform uniform coating film.

θ1は遮風板508a1の内面508a12と帯状支持体3aの上面を含む面との交わる角度を示し、遮風板508a1の帯状支持体3aに対し配設する角度となっている。角度θ1は80〜100°である。角度θ1が80°未満の場合は、塗膜面上に供給された乾燥風が支持体の端部で渦となる流れを形成し始め、結果として幅手中央部との乾燥状況が異なることにより均一な塗膜を得ることが困難になるため好ましくない。角度θ1が100°を越えた場合は、角度θ1が80°未満の場合と同様に乾燥風が帯状支持体の端部で渦となる流れを形成し、幅手に均一な塗膜が得られないことや、乾燥風が遮蔽板を乗り越えて幅手方向の流れを生じることにより幅手に均一な塗布巻くが得られない場合が生じるため好ましくない。   θ1 indicates an angle at which the inner surface 508a12 of the wind shielding plate 508a1 intersects with the surface including the upper surface of the belt-like support 3a, and is an angle disposed with respect to the belt-like support 3a of the wind shielding plate 508a1. The angle θ1 is 80 to 100 °. When the angle θ1 is less than 80 °, the drying air supplied onto the coating surface starts to form a vortex flow at the end of the support, and as a result, the drying state differs from the width center. Since it becomes difficult to obtain a uniform coating film, it is not preferable. When the angle θ1 exceeds 100 °, the drying air forms a vortex flow at the end of the belt-like support as in the case where the angle θ1 is less than 80 °, and a uniform coating film is obtained in the width. It is not preferable because there is a case in which uniform coating winding cannot be obtained in the width due to the absence of the air and the dry air over the shielding plate to cause a flow in the width direction.

他の端部に配設されている遮風板508a2も、帯状支持体の端に対して遮風板508a1と同じ位置で同じ角度で配設されている。他の符号は図6と同義である。   The wind shielding plate 508a2 disposed at the other end is also disposed at the same position and the same angle as the wind shielding plate 508a1 with respect to the end of the belt-like support. Other symbols are the same as those in FIG.

図2の(b)を使って乾燥風の流れについて説明する。図中の矢印は乾燥風の流れの方向を示す。取り入れ口503aより温風供給ヘッダ502aに入った乾燥風は吹出し口502a1のスリットノズル502a2より、塗膜面に対して垂直に吹き出し塗膜面に達する。この後、本図に示される様に、帯状支持体の幅手両端部に、幅手両端部から2〜40cmの距離に、帯状支持体に対して80〜100°で、帯状支持体の表面からの高さが10〜50cmの遮風板を配設することにより、帯状支持体端部で塗膜面上を乾燥風が幅手方向に流れるのを阻害するため、乾燥風の流れが塗布幅の中央と両端部で同じになり幅手に均一な塗膜を得ることが可能となる。   The flow of the drying air will be described with reference to FIG. The arrows in the figure indicate the direction of the flow of the drying air. The dry air entering the warm air supply header 502a from the intake port 503a is blown out from the slit nozzle 502a2 of the blowout port 502a1 perpendicularly to the coating film surface and reaches the coating film surface. Thereafter, as shown in the figure, the surface of the belt-like support at the widthwise ends of the belt-like support at a distance of 2 to 40 cm from the widthwise both ends at 80 to 100 ° with respect to the belt-like support. By arranging a windshield plate with a height of 10 to 50 cm from the top, the flow of the drying air is applied in order to prevent the drying air from flowing in the width direction on the coating film surface at the end of the belt-like support. It becomes the same at the center and both ends of the width, and a uniform coating film can be obtained in the width.

帯状支持体の幅手方向に乾燥風の流れが生じるのは、帯状支持体の端部と乾燥ボックスの壁との間が広く空いている場合、帯状支持体に向かう乾燥風が帯状支持体の端部の外側で障壁となる物が無いため流動抵抗が小さくなり、乾燥風の流れが帯状支持体上と較べて流れが速くなるため、結果として帯状支持体の端部の乾燥風も引き込まれることにより生じる。従って、この空間にも障壁となる遮風板を設けることで幅手方向への流れを抑制することが出来る。即ち、帯状支持体の端部にあたかも支持体の幅を延長するように遮風板を設置することで幅手方向への流れはこの遮風板の上のみで発生し、結果として製品である支持体上の塗膜上では幅方向への長れを生じさせない様にすることが出来る。具体的な方法を図3に示す。   The flow of the drying air in the width direction of the belt-like support occurs when the gap between the end of the belt-like support and the wall of the drying box is wide, and the drying wind toward the belt-like support Since there is no barrier on the outside of the edge, the flow resistance is reduced, and the flow of the drying air is faster than on the belt-like support, and as a result, the drying air at the edge of the belt-like support is also drawn. Caused by Therefore, a flow in the width direction can be suppressed by providing a wind shielding plate as a barrier in this space. That is, by installing a wind shield so as to extend the width of the support at the end of the belt-like support, the flow in the width direction occurs only on the wind shield, resulting in a product. It is possible to prevent the length in the width direction from occurring on the coating film on the support. A specific method is shown in FIG.

図3は帯状支持体の幅手両端部に遮風板を配設した乾燥ボックスを持つ乾燥装置を用いた乾燥方法の他の一例を示す概略図である。図3の(a)は帯状支持体の幅手両端部に遮風板を配設した温風吹き出し方式の乾燥ボックスを連続的に繋げた乾燥ゾーンを有する乾燥装置を用い、塗布から乾燥までの他の一例を示す概略図である。図3の(b)は図3の(a)に示される乾燥装置をコーター側から見た時の帯状支持体の幅手両端部と遮風板との位置を示す模式図である。図3の(c)は図3の(b)のHで示される部分の拡大概略図である。   FIG. 3 is a schematic view showing another example of a drying method using a drying apparatus having a drying box in which wind shielding plates are arranged at both widthwise ends of a belt-like support. (A) of FIG. 3 uses the drying apparatus which has the drying zone which connected the drying box of the warm air blowing system which arranged the wind-shielding board in the width | variety both ends of the strip | belt-shaped support body continuously, From application | coating to drying It is the schematic which shows another example. FIG. 3B is a schematic view showing the positions of the widthwise both ends of the belt-like support and the wind shielding plate when the drying apparatus shown in FIG. 3A is viewed from the coater side. FIG. 3C is an enlarged schematic view of a portion indicated by H in FIG.

図中、509a1は帯状支持体3の面と遮風板の面とが平行になるように帯状支持体3の幅手端部3a1に沿って乾燥ボックス501aに配設された遮風板を示す。509a2は帯状支持体3の面と遮風板の面とが平行になるように帯状支持体3の幅手端部3a2に沿って乾燥ボックス501aに配設された遮風板を示す。乾燥ボックス501bにも同じように遮風板が配設されている。Sは帯状支持体3の幅手両端部3a1から遮風板509a1までの距離を示す。距離Sは2〜10cmである。距離Sが2cm未満の場合は、遮風板を設置するにあたり帯状支持体の搬送を支持する支持ロールと干渉する危険がある他、帯状支持体の蛇行時に遮風板と接触する危険があり現実的ではないため好ましくない。距離Sが10cmを越えた場合は、帯状支持体端と遮風板の間隙から乾燥風が流れ出してしまうことから、塗膜面上に供給された乾燥風が塗膜面の両端部では幅手に均一な塗膜を得ることが困難になるため好ましくない。   In the drawing, reference numeral 509a1 denotes a windshield plate disposed in the drying box 501a along the wide end portion 3a1 of the belt-like support 3 so that the surface of the belt-like support 3 and the surface of the windshield plate are parallel to each other. . Reference numeral 509a2 denotes a wind shielding plate disposed in the drying box 501a along the width end portion 3a2 of the belt-like support 3 so that the surface of the belt-like support 3 and the surface of the wind shielding plate are parallel to each other. Similarly, a windshield plate is disposed in the drying box 501b. S shows the distance from the width | variety both ends 3a1 of the strip | belt-shaped support body 3 to the wind-shielding board 509a1. The distance S is 2 to 10 cm. When the distance S is less than 2 cm, there is a risk of interfering with the support roll that supports the conveyance of the belt-shaped support when installing the wind shield, and there is a risk of contact with the wind shield during meandering of the belt-shaped support. It is not desirable because it is not intended. When the distance S exceeds 10 cm, the drying air flows out from the gap between the end of the belt-like support and the wind shielding plate, so that the drying air supplied on the coating surface is wide at both ends of the coating surface. It is difficult to obtain a uniform coating film.

Tは、遮風板509a1の幅を示す。幅Tは20〜50cmが好ましい。幅Tが20cm未満の場合は、乾燥風の幅方向の流れは遮風板に留まらず塗膜面上でも生じることがあり、幅手に均一な塗膜を得ることが困難になる場合がある。幅Tが50cmを超えた場合、必要以上に乾燥ボックスを大きな物としなければならなくなる他、乾燥装置の構造によってはメンテナンス上不都合が生じる場合がある。   T indicates the width of the wind shield 509a1. The width T is preferably 20 to 50 cm. When the width T is less than 20 cm, the flow in the width direction of the drying wind may occur not only on the windshield plate but also on the coating surface, and it may be difficult to obtain a uniform coating film on the width. . When the width T exceeds 50 cm, the drying box must be made larger than necessary, and there may be inconveniences in maintenance depending on the structure of the drying apparatus.

Uは帯状支持体の面から遮風板509a1の表面509a12までの高さを示し、−4〜+4cmが好ましい。更に好ましくは−2〜+2cmであり、帯状支持体の面と遮風板509a1の表面509a12とが同じ位置が最も好ましい。高さUが−4cm未満の場合は、帯状支持体に供給された乾燥風が遮風板方向に流れようとして、塗膜面両端部で幅手への流れが生じてしまい、中央部との流れが異なってしまうことで幅手の乾燥が不均一となり均一な塗膜を得ることが困難になってしまうため好ましくない。高さUが+4cmを越えた場合は、遮風板上に供給された乾燥風が帯状支持体方向に流れようとして、塗膜面両端部で幅手への流れが生じてしまい、中央部との流れが異なってしまうことで幅手の乾燥が不均一となり均一な塗膜を得ることが困難になってしまうため好ましくない。   U shows the height from the surface of a strip | belt-shaped support body to the surface 509a12 of the windshield 509a1, and -4 ~ + 4cm is preferable. More preferably, it is −2 to +2 cm, and the position where the surface of the belt-like support and the surface 509a12 of the wind shielding plate 509a1 are the same is most preferable. When the height U is less than −4 cm, the dry air supplied to the belt-like support tends to flow in the direction of the windshield plate, and a flow to the width occurs at both ends of the coating film surface. Since the flow is different, drying in the width is not uniform, and it becomes difficult to obtain a uniform coating film, which is not preferable. When the height U exceeds +4 cm, the dry air supplied on the windshield plate tends to flow in the direction of the belt-like support, causing a flow to the width at both ends of the coating surface, It is not preferable because the width of the flow differs and drying of the width is uneven and it becomes difficult to obtain a uniform coating film.

他の端部に配設されている遮風板509a2も、帯状支持体の端に対して遮風板509a1と同じ位置、同じ高さで配設されている。尚、本図は帯状支持体の面と遮風板509a1の表面509a12との位置が+側に配設された場合を示している。他の符号は図6と同義である。   The wind shielding plate 509a2 disposed at the other end is also disposed at the same position and the same height as the wind shielding plate 509a1 with respect to the end of the belt-like support. In addition, this figure has shown the case where the position of the surface of a strip | belt-shaped support body and the surface 509a12 of the windshield 509a1 is arrange | positioned on the + side. Other symbols are the same as those in FIG.

図3の(b)を使って乾燥風の流れについて説明する。図中の矢印は乾燥風の流れの方向を示す。取り入れ口503aより温風供給ヘッダ502aに入った乾燥風は吹出し口502a1のスリットノズル502a2より、塗膜面に対して垂直に吹き出し塗膜面に達する。この後、本図に示される様に、帯状支持体の幅手両端部に、幅手両端部から2〜40cmの距離に、帯状支持体の面に対して平行で、帯状支持体の表面から−4〜+4cmの位置に遮風板を配設することにより、帯状支持体端部で塗膜面上を乾燥風が幅手方向に流れるのを緩和するため、乾燥風の流れが塗布幅の中央と両端部で同じになり幅手に均一な塗膜を得ることが可能となる。
遮風板を配設する角度は帯状支持体の面に対して−10〜+10°が好ましい。角度が−10〜+10°の範囲を超えた場合は、供給された乾燥風が帯状支持体方向に流れようとして、塗膜面両端部で幅手への流れが生じてしまい、中央部との流れが異なってしまうことで幅手の乾燥が不均一となり均一な塗膜を得ることが困難になってしまう場合がある。
The flow of the drying air will be described with reference to FIG. The arrows in the figure indicate the direction of the flow of the drying air. The dry air entering the warm air supply header 502a from the intake port 503a is blown out from the slit nozzle 502a2 of the blowout port 502a1 perpendicularly to the coating film surface and reaches the coating film surface. Thereafter, as shown in the figure, from the surface of the belt-like support to the widthwise both ends of the belt-like support, at a distance of 2 to 40 cm from the width both ends, parallel to the surface of the belt-like support. By disposing a windshield plate at a position of -4 to +4 cm, the flow of the drying air is less than the coating width in order to relieve the drying air flowing in the width direction on the coating film surface at the end of the belt-like support. It becomes the same in the center and both ends, and it becomes possible to obtain a uniform uniform coating film.
The angle at which the wind shielding plate is disposed is preferably −10 to + 10 ° relative to the surface of the belt-like support. When the angle exceeds the range of −10 to + 10 °, the supplied dry air tends to flow in the direction of the belt-like support, and a flow to the width occurs at both ends of the coating surface. If the flow is different, drying of the width may be uneven and it may be difficult to obtain a uniform coating film.

図4は帯状支持体の両端への温風の吹き付けが中央方向に傾斜して吹き付けられる様な吹き出し口を配設した温風供給ヘッダを有する乾燥ボックスを持つ乾燥装置を用いた乾燥方法の一例を示す概略図である。図4の(a)は帯状支持体の両端への温風の吹付けが中央方向に傾斜して吹き付けられる様にスリットノズルに温風の吹き付け方向制御手段を配設した温風供給ヘッダを有する乾燥ボックスを連続的に繋げた乾燥ゾーンを有する乾燥装置を用い、塗布から乾燥までの他の一例を示す概略図である。図4の(b)は図4の(a)に示される乾燥装置をコーター側から見た時の概略図である。   FIG. 4 shows an example of a drying method using a drying apparatus having a drying box having a hot air supply header provided with a blower outlet so that the blowing of hot air to both ends of the belt-like support is inclined toward the center. FIG. FIG. 4 (a) has a hot air supply header in which hot air blowing direction control means is disposed on the slit nozzle so that the blowing of hot air to both ends of the belt-like support is inclined toward the center. It is the schematic which shows another example from application | coating to drying using the drying apparatus which has a drying zone which connected the drying box continuously. FIG. 4B is a schematic view of the drying device shown in FIG. 4A as viewed from the coater side.

図中、502a3は吹き出し口502a1に設けられたスリットノズル502a2に配設された温風の吹き付け方向制御手段の風向板を示す。風向板502a3はスリットノズル502a2の両側は帯状支持体3aの中央方向に向けて乾燥風が供給出来るように内側に角度を付けてスリットノズル502a2の内側に配設されている。他の符号は図6と同義である。   In the figure, reference numeral 502a3 denotes a wind direction plate of the hot air blowing direction control means provided in the slit nozzle 502a2 provided in the blowing port 502a1. The airflow direction plate 502a3 is disposed inside the slit nozzle 502a2 at an angle inside so that both sides of the slit nozzle 502a2 can supply dry air toward the center of the belt-like support 3a. Other symbols are the same as those in FIG.

図4の(b)を使って乾燥風の流れについて説明する。図中の矢印は乾燥風の流れの方向を示す。取り入れ口503aより温風供給ヘッダ502aに入った乾燥風は吹出し口502a1のスリットノズル502a2より、塗膜面に対して垂直に吹き出し塗膜面に達する。この後、本図に示す様に帯状支持体の中央部には垂直に温風を供給し、両端に供給する温風を幅方向の中央方向に向けて供給し、帯状支持体の両端から外側に向けての温風の流れを緩和することで、帯状支持体の幅方向で温風の流れが均一になり、幅手に均一な塗膜を得ることが可能となる。   The flow of the drying air will be described with reference to FIG. The arrows in the figure indicate the direction of the flow of the drying air. The dry air entering the warm air supply header 502a from the intake port 503a is blown out from the slit nozzle 502a2 of the blowout port 502a1 perpendicularly to the coating film surface and reaches the coating film surface. Thereafter, as shown in the figure, hot air is supplied vertically to the central portion of the belt-like support, and hot air supplied to both ends is supplied toward the center in the width direction. By relaxing the flow of warm air toward the surface, the flow of warm air becomes uniform in the width direction of the belt-like support, and a uniform coating film can be obtained in the width direction.

図5は図4に示される温風供給ヘッダをスリットノズル側から見た概略図である。図5の(a)は図4に示される温風供給ヘッダをスリットノズル側から見た概略斜視図である。図5の(b)は図5の(a)のIで示される部分のA−A′に沿った拡大概略部分矢示断面図である。   FIG. 5 is a schematic view of the hot air supply header shown in FIG. 4 as viewed from the slit nozzle side. (A) of FIG. 5 is the schematic perspective view which looked at the hot air supply header shown by FIG. 4 from the slit nozzle side. FIG. 5B is an enlarged schematic partial cross-sectional view taken along the line AA ′ of the portion indicated by I in FIG.

図中、θ2はスリットノズル502a2内に設けられた温風の吹き付け方向制御手段の風向板502a3の取り付け角度を示し、角度θ2は20〜45°であり、帯状支持体3aの端3a1及び端3a2から幅手の中央方向に向けて10〜20cmの区間に傾斜風を供給するようにスリットノズル502a2の両端に配設されている。その他の区間はスリットノズル502a2から垂直風が供給されるように風向板502a3はスリットノズル502a2内に配設されている。   In the figure, θ2 indicates the mounting angle of the wind direction plate 502a3 of the hot air blowing direction control means provided in the slit nozzle 502a2, and the angle θ2 is 20 to 45 °, and the end 3a1 and end 3a2 of the belt-like support 3a. Are arranged at both ends of the slit nozzle 502a2 so as to supply the inclined air to a section of 10 to 20 cm from the side toward the center of the width. In the other sections, the wind direction plate 502a3 is arranged in the slit nozzle 502a2 so that the vertical wind is supplied from the slit nozzle 502a2.

取り付け角度θ2が20°未満の場合は、塗膜面上に供給された乾燥風が塗膜の両端部では塗膜面上を幅手方向外側に向かって流れ、中央部の流れと異なってしまうことにより幅手の乾燥が不均一となり、均一な塗膜を得ることが困難になってしまうため好ましくない。   When the attachment angle θ2 is less than 20 °, the drying air supplied on the coating surface flows on the coating film surface toward the outside in the width direction at both ends of the coating film, which is different from the flow in the central portion. This makes the width drying uneven and makes it difficult to obtain a uniform coating film.

取り付け角度θ2が45°を越えた場合は、塗膜面上で帯状支持体の幅手中央方向へ向かう温風の流れが生じることで、幅手に均一な塗膜を得ることが困難になるため好ましくない。   When the attachment angle θ2 exceeds 45 °, the flow of warm air toward the center of the width of the belt-like support occurs on the coating surface, making it difficult to obtain a uniform coating on the width. Therefore, it is not preferable.

傾斜風を供給する区間が、10cm未満の場合は、塗膜面上を幅手方向外側に向って流れ、中央部分の流れが異なってしまうことにより、幅手に均一な塗膜を得ることが困難になるため好ましくない。傾斜風を供給する区間が、20cmを越えた場合は帯状支持体の幅手中央方向へ向かう温風の流れが生じることで、幅手に均一な塗膜を得ることが困難になるため好ましくない。   When the section for supplying the inclined wind is less than 10 cm, the uniform flow can be obtained in the width by flowing toward the outside in the width direction on the coating surface and the flow in the center portion being different. Since it becomes difficult, it is not preferable. When the section for supplying the inclined wind exceeds 20 cm, it is not preferable because a warm air flow toward the center of the width of the belt-like support occurs, making it difficult to obtain a uniform coating film on the width. .

スリットノズル502a2内に配設する風向板502a3の間隔は乾燥する物の状態により適宜設定することが可能である。   The interval between the wind direction plates 502a3 disposed in the slit nozzle 502a2 can be set as appropriate according to the state of the object to be dried.

図4、図5に示す様に温風供給ヘッダの吹き出し口に設けられたスリットノズル内に温風の吹き付け方向制御手段の風向板を、帯状支持体の中央部には垂直に温風を供給し、両端に供給する温風を、帯状支持体の両端から幅手の中央方向に向けて10〜20cmの区間に傾斜風を供給するように配設することで、帯状支持体の両端から外側に向けての温風の流れを緩和され、帯状支持体の幅方向で温風の流れが均一になり、幅手に均一な塗膜を得ることが可能となる。   As shown in FIG. 4 and FIG. 5, the wind direction plate of the hot air blowing direction control means is supplied into the slit nozzle provided at the outlet of the hot air supply header, and the hot air is supplied vertically to the central portion of the belt-like support. Then, the warm air supplied to both ends is arranged so as to supply the inclined air to the section of 10 to 20 cm from the both ends of the belt-shaped support toward the center of the width. The flow of warm air toward the surface is relaxed, the flow of warm air becomes uniform in the width direction of the belt-like support, and a uniform coating film can be obtained in the width direction.

本発明に係る塗布液は、特に限定されず、例えば写真感光材料、熱現像感光材料、アブレーション記録材料、印刷製版材料、磁気記録材料、感圧及び感熱記録材料、易接着性、易滑性、ガス遮断性、防湿性、制電性、インク受容性等の機能を付与する材料に使用する塗布液が挙げられる。また、塗布液中の溶媒についても特に限定されず、水、有機溶剤を溶媒とする系に適用できる。それら塗布液を塗布する方式も「MODERN COATING AND DRYING TECHNOLOGY」に各種記載されているが、本発明に係る適用には特に限定されない。   The coating solution according to the present invention is not particularly limited, and for example, a photographic material, a photothermographic material, an ablation recording material, a printing plate making material, a magnetic recording material, a pressure-sensitive and heat-sensitive recording material, easy adhesion, easy slipping, Examples thereof include coating liquids used for materials that provide functions such as gas barrier properties, moisture proof properties, antistatic properties, and ink acceptability. Further, the solvent in the coating solution is not particularly limited and can be applied to a system using water or an organic solvent as a solvent. Various methods for applying these coating solutions are also described in "MODER COATING AND DRYING TECHNOLOGY", but are not particularly limited to the application according to the present invention.

また、本発明に適用される支持体も特に限定されず、紙、プラスチック、金属などの支持体に適用できる。代表的支持体の材質としては、プラスチックではポリエチレンテレフタレート(PET)、金属ではアルミニウム等が挙げられる。   Moreover, the support body applied to this invention is not specifically limited, It can apply to support bodies, such as paper, a plastics, and a metal. Typical materials for the support include polyethylene terephthalate (PET) for plastics and aluminum for metals.

以下に本発明の実施例を挙げて具体的に説明するが、本発明の実施態様はこれらの例に限定されるものではない。   Examples of the present invention will be specifically described below, but the embodiments of the present invention are not limited to these examples.

実施例1
(塗布液の調製)
メチルエチルケトンにポリビニルブチラールを固形分濃度として、20質量%となるように溶解して塗布液を調製した。この塗布液を、B型粘度計で20℃における粘度を測定したところ427mPa・sであった。
Example 1
(Preparation of coating solution)
A coating solution was prepared by dissolving polyvinyl butyral in methyl ethyl ketone at a solid content concentration of 20% by mass. When the viscosity of this coating solution at 20 ° C. was measured with a B-type viscometer, it was 427 mPa · s.

(乾燥装置の準備)
図1に示す乾燥ボックスを使用し、帯状支持体の端部と乾燥ボックスの内壁との距離Pを表1に示す様に変えた乾燥装置を準備し1−1〜1−5とした。尚、乾燥ボックスの長さは6mとした。
(Preparation of drying equipment)
A drying apparatus using the drying box shown in FIG. 1 and changing the distance P between the end of the belt-like support and the inner wall of the drying box as shown in Table 1 was prepared and designated 1-1 to 1-5. The length of the drying box was 6 m.

Figure 2005185997
Figure 2005185997

(塗布及び乾燥)
調製した塗布液を、エクストルージョンダイコーターを用いて、帯状支持体として100μm厚みのポリエチレンテレフタレートフィルムを使用し、塗布幅1m、ウエット膜厚80μmとなるように塗布速度20m/minで1000m塗布し、準備した乾燥装置1−1〜1−5を用いて乾燥し、試料101〜105とした。このときの乾燥風の温度は75℃とした。
(Coating and drying)
Using an extrusion die coater, the prepared coating solution was applied to a terephthalate support using a polyethylene terephthalate film having a thickness of 100 μm, and coated at a coating speed of 20 m / min for 1000 m at a coating speed of 1 m and a wet film thickness of 80 μm. It dried using the prepared drying apparatus 1-1 to 1-5, and was set as the samples 101-105. The temperature of the drying air at this time was 75 ° C.

(評価)
作製した各試料101〜105の塗布終端から2mに付き、幅方向の中央部分に対する端部の透明性について目視で観察し、以下の評価ランクで評価した結果を表2に示す。
(Evaluation)
Table 2 shows the results of visual observation of the transparency of the end portion with respect to the central portion in the width direction, which was observed 2m from the coating end of each of the produced samples 101 to 105, and evaluated with the following evaluation rank.

透明性の評価ランク
◎:幅方向の中央部分と同じ
○:僅かに失透している
×:著しく失透している
Evaluation rank of transparency
: Same as the central part in the width direction
○: Slightly devitrified
X: Remarkably devitrified

Figure 2005185997
Figure 2005185997

本発明の有効性が確認された。 The effectiveness of the present invention was confirmed.

実施例2
(乾燥装置の準備)
図2に示す乾燥ボックスを使用し、帯状支持体の両端部に配設した遮風板と帯状支持体の端部との距離Q、帯状支持体の表面と遮風板のなす角度θ1、帯状支持体の表面を含む面からの遮風板の高さRを表3に示す様に変えた乾燥装置を準備し2−1〜2−13とした。尚、乾燥ボックスの長さは6mとした。
Example 2
(Preparation of drying equipment)
Using the drying box shown in FIG. 2, the distance Q between the windshield plate disposed at both ends of the belt-like support and the edge of the belt-like support, the angle θ1 between the surface of the belt-like support and the windshield, The drying apparatus which changed the height R of the wind-shielding board from the surface containing the surface of a support body as shown in Table 3 was prepared, and it was set as 2-1 to 2-13. The length of the drying box was 6 m.

Figure 2005185997
Figure 2005185997

(塗布及び乾燥)
実施例1と同じ塗布液を、実施例1と同じ条件で塗布し、準備した乾燥装置2−1〜2−13を用いて乾燥し、試料201〜213とした。このときの乾燥風の温度は75℃とした。
(Coating and drying)
The same coating liquid as in Example 1 was applied under the same conditions as in Example 1, and dried using the prepared drying apparatuses 2-1 to 2-13 to obtain Samples 201 to 213. The temperature of the drying air at this time was 75 ° C.

(評価)
作製した各試料201〜213の塗布終端から2mに付き、幅方向の中央部分に対する端部の透明性について目視で観察し、実施例1と同じ評価ランクで評価した結果を表4に示す。
(Evaluation)
Table 4 shows the results obtained by visually observing the transparency of the end with respect to the central portion in the width direction, with the same evaluation rank as that of Example 1, being 2 m from the coating end of each of the prepared samples 201 to 213.

Figure 2005185997
Figure 2005185997

尚、試料201は、端部の透明性は良好であったが、帯状支持体の両端部に配設した遮風板と帯状支持体の端部との距離Qが1cmの場合、遮風板と帯状支持体の搬送を支持する支持ロールとの干渉を避けるための改造と維持に費用が掛かるため実用化は困難と判断した。本発明の有効性が確認された。 The sample 201 had good transparency at the end, but when the distance Q between the wind shield disposed at both ends of the belt-like support and the edge of the belt-like support was 1 cm, the wind shield was Therefore, it was judged that it would be difficult to put it into practical use because it would be expensive to modify and maintain it to avoid interference with the support roll that supports the transport of the belt-like support. The effectiveness of the present invention was confirmed.

実施例3
(乾燥装置の準備)
図3に示す乾燥ボックスを使用し、帯状支持体の両端部に配設した遮風板と帯状支持体の端部との距離S、遮風板の幅T、帯状支持体の表面を含む平面からの高さUを表5に示す様に変えた乾燥装置を準備し3−1〜3−13とした。尚、乾燥ボックスの長さは6mとした。
Example 3
(Preparation of drying equipment)
Using the drying box shown in FIG. 3, the plane S including the distance S between the wind shielding plate disposed at both ends of the belt-like support and the edge of the belt-like support, the width T of the wind shield, and the surface of the belt-like support. The drying apparatus which changed height U from as shown in Table 5 was prepared, and it was set as 3-1 to 3-13. The length of the drying box was 6 m.

Figure 2005185997
Figure 2005185997

(塗布及び乾燥)
実施例1と同じ塗布液を、実施例1と同じ条件で塗布し、準備した乾燥装置3−1〜3−13を用いて、乾燥し、試料301〜313とした。このときの乾燥風の温度は75℃とした。
(Coating and drying)
The same coating liquid as in Example 1 was applied under the same conditions as in Example 1, and dried using the prepared drying apparatuses 3-1 to 3-13 to obtain samples 301 to 313. The temperature of the drying air at this time was 75 ° C.

(評価)
作製した各試料301〜313の塗布終端から2mに付き、幅方向の中央部分に対する端部の透明性について目視で観察し、実施例1と同じ評価ランクで評価した結果を表6に示す。
(Evaluation)
Table 6 shows the results obtained by visually observing the transparency of the end portion with respect to the central portion in the width direction, with the same evaluation rank as in Example 1, being 2 m from the coating end of each of the prepared samples 301 to 313.

Figure 2005185997
Figure 2005185997

尚、試料201は、端部の透明性は良好であったが、帯状支持体の両端部に配設した遮風板と帯状支持体の端部との距離Qが1cmの場合、遮風板と帯状支持体の搬送を支持する支持ロールとの干渉を避けるための改造と維持に費用が掛かるため実用化は困難と判断した。本発明の有効性が確認された。本発明の有効性が確認された。 The sample 201 had good transparency at the end, but when the distance Q between the wind shield disposed at both ends of the belt-like support and the edge of the belt-like support was 1 cm, the wind shield was Therefore, it was judged that it would be difficult to put it into practical use because it would be expensive to modify and maintain it to avoid interference with the support roll that supports the transport of the belt-like support. The effectiveness of the present invention was confirmed. The effectiveness of the present invention was confirmed.

実施例4
(乾燥装置の準備)
図4に示す乾燥ボックスを使用し、温風供給ヘッダに連通するスリット内に設けられた風向板の取り付け角度θ2、乾燥風の風向が幅手中央方向に傾斜している帯状支持体端部からの区間の長さを表7に示す様に変えた乾燥装置を準備し4−1〜4−8とした。尚、遮風板の設置角度は水平とし、乾燥ボックスの長さは6mとした。
Example 4
(Preparation of drying equipment)
Using the drying box shown in FIG. 4, the attachment angle θ2 of the wind direction plate provided in the slit communicating with the warm air supply header, from the end of the belt-like support body where the wind direction of the drying air is inclined in the width direction. The drying apparatus which changed the length of this area as shown in Table 7 was prepared, and it was set as 4-1 to 4-8. In addition, the installation angle of the wind shielding plate was horizontal, and the length of the drying box was 6 m.

Figure 2005185997
Figure 2005185997

(塗布及び乾燥)
実施例1と同じ塗布液を、実施例1と同じ条件で塗布し、準備した乾燥装置4−1〜4−8を用いて、乾燥し、試料401〜408とした。このときの乾燥風の温度は75℃とした。
(Coating and drying)
The same coating liquid as in Example 1 was applied under the same conditions as in Example 1, and dried using the prepared drying apparatuses 4-1 to 4-8 to obtain Samples 401 to 408. The temperature of the drying air at this time was 75 ° C.

(評価)
作製した各試料401〜408の塗布終端から2mに付き、幅方向の中央部分に対する端部の透明性について目視で観察し、実施例1と同じ評価ランクで評価した結果を表8に示す。
(Evaluation)
Table 8 shows the results obtained by visually observing the transparency of the end portion with respect to the central portion in the width direction by applying the same evaluation rank as Example 1 to 2 m from the coating end of each of the prepared samples 401 to 408.

Figure 2005185997
Figure 2005185997

本発明の有効性が確認された。 The effectiveness of the present invention was confirmed.

乾燥ボックス内壁と帯状支持体の幅手両端部との距離を狭くした乾燥ボックスを持つ乾燥装置を用いた乾燥方法の一例を示す概略図である。It is the schematic which shows an example of the drying method using the drying apparatus with the drying box which narrowed the distance of the inner wall of a drying box, and the width | variety both ends of a strip | belt-shaped support body. 帯状支持体の幅方向両端部に遮風板を配設した乾燥ボックスを持つ乾燥装置を用いた乾燥方法の一例を示す概略図である。It is the schematic which shows an example of the drying method using the drying apparatus which has the drying box which arrange | positioned the wind-shielding board in the width direction both ends of the strip | belt-shaped support body. 帯状支持体の幅手両端部に遮風板を配設した乾燥ボックスを持つ乾燥装置を用いた乾燥方法の他の一例を示す概略図である。It is the schematic which shows another example of the drying method using the drying apparatus which has the drying box which arrange | positioned the wind-shielding board in the width | variety both ends of the strip | belt-shaped support body. 帯状支持体の両端への温風の吹き付けが中央に向けて吹き付けられる様な吹き出し口を配設した温風供給ヘッダを有する乾燥ボックスを持つ乾燥装置を用いた乾燥方法の一例を示す概略図である。It is the schematic which shows an example of the drying method using the drying apparatus which has a drying box which has the warm air supply header which arranged the blower outlet which blows the warm air on the both ends of a beltlike support toward the center. is there. 図4に示される温風供給ヘッダをスリットノズル側から見た概略図である。It is the schematic which looked at the warm air supply header shown by FIG. 4 from the slit nozzle side. 従来の温風吹き出し方式の乾燥ボックスを持つ乾燥装置を用いた乾燥方法の一例を示す概略図である。It is the schematic which shows an example of the drying method using the drying apparatus with the drying box of the conventional warm air blowing method.

符号の説明Explanation of symbols

1 コーター
3、3a 帯状支持体
3a1、3a2 端部
5 乾燥装置
501a、501b 乾燥ボックス
501a1 内壁
502a、502b 温風供給ヘッダ
502a1 吹出し口
502a2 スリットノズル
502a3 風向板
503a 取り入れ口
504a 排出口
508a1、508a2、509a1、509a2 遮風板
506 入り口
507 出口
P、Q、S 距離
R 高さ
T 幅
θ1、θ2 角度
DESCRIPTION OF SYMBOLS 1 Coater 3, 3a Strip | belt-shaped support body 3a1, 3a2 End part 5 Drying device 501a, 501b Drying box 501a1 Inner wall 502a, 502b Hot air supply header 502a1 Outlet port 502a2 Slit nozzle 502a3 Wind direction plate 503a Inlet port 504a1 Outlet port 508a1 , 509a2 Windshield 506 Entrance 507 Exit P, Q, S Distance R Height T Width θ1, θ2 Angle

Claims (7)

連続的に搬送する帯状支持体上に塗布液を塗布して塗膜を形成した後、該塗膜を有する帯状支持体を搬送しながら温風を吹き付けることにより乾燥する乾燥ゾーンを有する乾燥装置において、
該乾燥ゾーンは前記塗膜に該温風を吹き付ける吹き出し口を配設した温風供給ヘッダを有する少なくとも1つの乾燥ボックスを有し、
該帯状支持体の幅手両端部と該乾燥ボックス内壁との距離が10〜40cmであることを特徴とする乾燥装置。
In a drying apparatus having a drying zone in which a coating liquid is formed on a belt-like support that is continuously conveyed to form a coating film and then dried by blowing warm air while conveying the belt-like support having the coating film. ,
The drying zone has at least one drying box having a hot air supply header provided with a blow outlet for blowing the hot air to the coating film;
A drying apparatus characterized in that the distance between the widthwise opposite ends of the belt-like support and the inner wall of the drying box is 10 to 40 cm.
連続的に搬送する帯状支持体上に塗布液を塗布して塗膜を形成した後、該塗膜を有する帯状支持体を搬送しながら温風を吹き付けることにより乾燥する乾燥ゾーンを有する乾燥装置において、
該乾燥ゾーンは前記塗膜に該温風を吹き付ける吹き出し口を配設した温風供給ヘッダを有する少なくとも1つの乾燥ボックスを有し、
該乾燥ボックス内の該帯状支持体の幅手両端部に沿って、該幅手両端部から2〜40cmの距離に、前記帯状支持体の面と80〜100°で交わる面を持つ遮風板を有することを特徴とする乾燥装置。
In a drying apparatus having a drying zone in which a coating liquid is formed on a belt-like support that is continuously conveyed to form a coating film and then dried by blowing warm air while conveying the belt-like support having the coating film. ,
The drying zone has at least one drying box having a hot air supply header provided with a blow outlet for blowing the hot air to the coating film;
A windshield having a surface that intersects the surface of the belt-like support at 80 to 100 ° along a width of both ends of the belt-like support in the drying box at a distance of 2 to 40 cm from both ends of the width. A drying apparatus comprising:
前記遮風板は、帯状支持体の上面から10〜50cmの高さを有していることを特徴とする請求項2に記載の乾燥装置。 The drying apparatus according to claim 2, wherein the wind shielding plate has a height of 10 to 50 cm from an upper surface of the belt-like support. 連続的に搬送する帯状支持体上に塗布液を塗布して塗膜を形成した後、該塗膜を有する帯状支持体を搬送しながら温風を吹き付けることにより乾燥する乾燥ゾーンを有する乾燥装置において、
該乾燥ゾーンは前記塗膜に該温風を吹き付ける吹き出し口を配設した温風供給ヘッダを有する少なくとも1つの乾燥ボックスを有し、
該乾燥ボックス内の該帯状支持体の幅手両端部に沿って、該幅手両端部から2〜10cmの距離に、前記帯状支持体の上面に対して−4〜+4cmの位置に、該上面と平行な遮風板を有することを特徴とする乾燥装置。
In a drying apparatus having a drying zone in which a coating liquid is formed on a belt-like support that is continuously conveyed to form a coating film and then dried by blowing warm air while conveying the belt-like support having the coating film. ,
The drying zone has at least one drying box having a hot air supply header provided with a blow outlet for blowing the hot air to the coating film;
The upper surface at a distance of 2 to 10 cm from both ends of the strip along the widthwise ends of the strip support in the drying box, at a position of −4 to +4 cm with respect to the top surface of the strip support. A drying apparatus characterized by having a wind shield parallel to each other.
前記遮風板の幅が20〜50cmであることを特徴とする請求項4に記載の乾燥装置。 The drying apparatus according to claim 4, wherein a width of the wind shielding plate is 20 to 50 cm. 連続的に搬送する帯状支持体上に塗布液を塗布して塗膜を形成した後、該塗膜を有する帯状支持体を搬送しながら温風を吹き付けることにより乾燥する乾燥ゾーンを有する乾燥装置において、
該乾燥ゾーンは、前記塗膜に該温風を吹き付ける吹き出し口を配設した温風供給ヘッダを有する少なくとも1つの乾燥ボックスを有し、
該吹き出し口は、該温風の吹き付け方向制御手段を有し、
該吹き付け方向制御手段は、該帯状支持体の両端部への前記塗膜への該温風の吹き付け方向が前記帯状支持体の幅手中央に向けて20〜45°傾斜するように前記吹き出し口に配設されていることを特徴とする乾燥装置。
In a drying apparatus having a drying zone in which a coating liquid is formed on a belt-like support that is continuously conveyed to form a coating film and then dried by blowing warm air while conveying the belt-like support having the coating film. ,
The drying zone has at least one drying box having a hot air supply header provided with a blowout port for blowing the hot air on the coating film;
The outlet has a hot air blowing direction control means,
The blowing direction control means includes the blowing port so that the direction in which the hot air is blown onto the coating film on both ends of the belt-like support is inclined by 20 to 45 ° toward the width center of the belt-like support. The drying apparatus characterized by the above-mentioned.
前記吹き付け方向制御手段は、帯状支持体の両端部から10〜20cmに乾燥風を供給するように吹き出し口の位置に配設されていることを特徴とする請求項6に記載の乾燥装置。 The drying apparatus according to claim 6, wherein the spray direction control means is disposed at the position of the outlet so as to supply the drying air from 10 to 20 cm from both ends of the belt-like support.
JP2003432858A 2003-12-26 2003-12-26 Drying facility Pending JP2005185997A (en)

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Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007271131A (en) * 2006-03-30 2007-10-18 Osaka Gas Co Ltd Gas low range
JP2008298315A (en) * 2007-05-29 2008-12-11 Fujifilm Corp Drying device and optical film manufactured thereby
JP2013234818A (en) * 2012-05-10 2013-11-21 Okura Ind Co Ltd Hood for drying and drying device
CN105300073A (en) * 2015-07-16 2016-02-03 江苏牧羊控股有限公司 Belt drier
JP2016186377A (en) * 2015-03-27 2016-10-27 日本電気株式会社 Dryer and drying method
KR20200034517A (en) * 2018-09-21 2020-03-31 주식회사 엘지화학 Manufacturing apparatus for anti-glare film
CN111167682A (en) * 2018-11-13 2020-05-19 杭州纤纳光电科技有限公司 Semi-closed hot air device and solution coating equipment thereof
CN113957725A (en) * 2021-11-19 2022-01-21 清远市齐力合成革有限公司 Environment-friendly synthetic leather drying equipment
CN115711517A (en) * 2022-11-09 2023-02-24 衡东胜春绿色农产品科技开发有限公司 Auxiliary assembly is air-dried to rudiment cake after distiller's yeast fermentation

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007271131A (en) * 2006-03-30 2007-10-18 Osaka Gas Co Ltd Gas low range
JP2008298315A (en) * 2007-05-29 2008-12-11 Fujifilm Corp Drying device and optical film manufactured thereby
JP2013234818A (en) * 2012-05-10 2013-11-21 Okura Ind Co Ltd Hood for drying and drying device
JP2016186377A (en) * 2015-03-27 2016-10-27 日本電気株式会社 Dryer and drying method
CN105300073A (en) * 2015-07-16 2016-02-03 江苏牧羊控股有限公司 Belt drier
CN105300073B (en) * 2015-07-16 2017-12-29 江苏丰尚智能科技有限公司 A kind of band drier
KR20200034517A (en) * 2018-09-21 2020-03-31 주식회사 엘지화학 Manufacturing apparatus for anti-glare film
KR102246327B1 (en) * 2018-09-21 2021-04-28 주식회사 엘지화학 Manufacturing apparatus for anti-glare film
CN111167682A (en) * 2018-11-13 2020-05-19 杭州纤纳光电科技有限公司 Semi-closed hot air device and solution coating equipment thereof
CN111167682B (en) * 2018-11-13 2024-04-05 杭州纤纳光电科技有限公司 Semi-closed hot air device and solution coating equipment thereof
CN113957725A (en) * 2021-11-19 2022-01-21 清远市齐力合成革有限公司 Environment-friendly synthetic leather drying equipment
CN113957725B (en) * 2021-11-19 2023-10-31 清远市齐力合成革有限公司 Environment-friendly synthetic leather drying equipment
CN115711517A (en) * 2022-11-09 2023-02-24 衡东胜春绿色农产品科技开发有限公司 Auxiliary assembly is air-dried to rudiment cake after distiller's yeast fermentation

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