JPH057821A - Coating device - Google Patents
Coating deviceInfo
- Publication number
- JPH057821A JPH057821A JP18590291A JP18590291A JPH057821A JP H057821 A JPH057821 A JP H057821A JP 18590291 A JP18590291 A JP 18590291A JP 18590291 A JP18590291 A JP 18590291A JP H057821 A JPH057821 A JP H057821A
- Authority
- JP
- Japan
- Prior art keywords
- roll
- coating
- water film
- coater
- blade coater
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000011248 coating agent Substances 0.000 title claims abstract description 37
- 238000000576 coating method Methods 0.000 title claims abstract description 37
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 22
- 238000001816 cooling Methods 0.000 claims abstract description 10
- 239000003973 paint Substances 0.000 claims description 9
- 238000007790 scraping Methods 0.000 claims description 4
- 238000001035 drying Methods 0.000 abstract 1
- 230000001105 regulatory effect Effects 0.000 abstract 1
- 208000008454 Hyperhidrosis Diseases 0.000 description 5
- 238000003825 pressing Methods 0.000 description 5
- 230000035900 sweating Effects 0.000 description 5
- 238000009833 condensation Methods 0.000 description 3
- 230000005494 condensation Effects 0.000 description 3
- 239000002826 coolant Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000006185 dispersion Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000000593 degrading effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000007788 roughening Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
Landscapes
- Coating Apparatus (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、紙の塗工装置に関する
ものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a paper coating device.
【０００２】[0002]
【従来の技術と問題点】両面塗被紙を製造する場合にお
いて、塗被紙の生産スピ−ドを高め、省力化を計る目的
で、図３に例示するように、一面をブレ−ドコ−タ−
で、他の一面をロ−ルコ−タ−で両面を同時塗工する装
置が使用されることがある。図３に示す塗工装置の構成
を略述すると、２は紙シ−ト１の巻出し機、３はロ−ル
コ−タ−であり、バッキングロ−ル４、分散ロ−ル５、
メ−タリングロ−ル６で構成されている。また７はブレ
−ドコ−タ−であり、バッキングロ−ル４の下方にアプ
リケ−タ８と先端を上方に向けてバッキングロ−ルに突
きあてたブレ−ド９を具備している。また前記のコ−タ
−の後段にシ−トに塗布した塗料の水分を除去するため
のエアドライヤ−10を備えている。2. Description of the Related Art In the case of producing double-sided coated paper, one side is coated with a blade as shown in FIG. 3 for the purpose of increasing the production speed of the coated paper and saving labor. Target
In some cases, an apparatus for simultaneously coating the other surface with a roll coater may be used. The configuration of the coating apparatus shown in FIG. 3 is briefly described. Reference numeral 2 is an unwinder of the paper sheet 1, 3 is a roll coater, a backing roll 4, a dispersion roll 5,
It is composed of a metering roll 6. Reference numeral 7 is a blade coater, which is provided with an applicator 8 below the backing roll 4 and a blade 9 with its tip directed upwards and protruding against the backing roll. Further, an air dryer 10 for removing the water content of the coating material applied to the sheet is provided at the subsequent stage of the coater.
【０００３】この種の両面塗工装置においては、リ−ド
ロ−ル11に導かれ、バッキングロ−ルに沿わせて走行す
るシ−トに塗料を塗布した後、乾燥機に導入する直前に
乾燥機への導入角を決定する押さえロ−ル12を設け、こ
のロ−ルに塗工シ−トをタッチさせてシ−トの走行進路
を変更していた。この押さえロ−ル12は前述したように
乾燥機10への導入角を決定する機能があるのみならず、
コ−タ−の出口角度を決定し、更にこのロ−ルはシ−ト
のフリ−ラン長さを短くする等の重要な機能を有してい
る。In this type of double-sided coating apparatus, after the coating material is applied to the sheet which is guided by the reel roll 11 and runs along the backing roll, immediately before it is introduced into the dryer. A pressing roll 12 for determining the angle of introduction to the dryer was provided, and the running route of the sheet was changed by touching the coating sheet with this roll. This pressing roll 12 not only has the function of determining the introduction angle to the dryer 10 as described above,
The exit angle of the coater is determined, and this roll has important functions such as shortening the free run length of the sheet.
【０００４】ところで前記押さえロ−ル12は、図３に示
したように、ブレ−ドコ−タ−側には設置せずロ−ルコ
−タ−側に設置することが多い。その理由は、両面塗被
紙を製造する場合、ロ−ルコ−タ−側塗工面（紙の表
側）とブレ−ドコ−タ−側塗工面（紙の裏側）とで塗料
の塗布量に差があって、紙裏側の塗布量は紙表側の塗布
量に較べて多いため、塗布量の多い塗工面に押さえロ−
ル12を接触させると、コ−タ−で均一に塗られた塗工面
が荒れて品質が悪化するという問題を生ずるからであ
る。By the way, as shown in FIG. 3, the pressing roller 12 is not installed on the blade coater side but is installed on the roll coater side in many cases. The reason for this is that when a double-sided coated paper is manufactured, there is a difference in coating amount between the roll coater side (front side of the paper) and the blade coater side (back side of the paper). However, since the coating amount on the back side of the paper is larger than that on the front side of the paper, press down on the coated surface with a large coating amount.
This is because the contact of the rolls 12 causes a problem that the coating surface uniformly coated with a coater becomes rough and the quality is deteriorated.
【０００５】しかし押さえロ−ルの設置位置が、ロ−ル
コ−タ−側に限定されてしまうと、シ−トが通る走行通
路もその為に規制されるので、各装置のレイアウトが自
由に変更できないという操業上の不便がある。However, if the installation position of the pressing roll is limited to the roll coater side, the traveling passage through which the sheet passes is also restricted, so that the layout of each device can be freely set. There is an operational inconvenience that it cannot be changed.
【０００６】なお上記と同様なレイアウト上の制限は片
面塗被紙を製造する塗工装置にも存在する。The same layout limitation as described above also exists in a coating apparatus for producing single-sided coated paper.
【０００７】ここにおいて本発明は、片面あるいは両面
塗被紙を製造する場合において、ブレ−ドコ−タ−側塗
工面に押さえロ−ルを当接させると塗工面が荒れて品質
が悪化するという問題および押さえロ−ルの設置位置が
ロ−ルコ−タ−側に限定されると、シ−トが通る走行通
路が規制され、装置のレイアウト変更が自由にできない
という操業上の制約を解決することを目的になされたも
のである。According to the present invention, in the case of producing a single-sided or double-sided coated paper, when a pressing roll is brought into contact with the blade coater side coated surface, the coated surface becomes rough and the quality is deteriorated. If the problem and the installation position of the press roll are limited to the roll coater side, the traveling passage through which the sheet passes is restricted, and the operational constraint that the layout of the device cannot be changed freely is solved. It was made for the purpose.
【０００８】[0008]
【問題点を解決するための手段】前記した目的を達成す
るため、本発明は、バッキングロ−ルに一部を沿わせて
走行するシ−トに対し片面ブレ−ド塗工する装置におい
て、乾燥機の前段の位置に、冷却機構を具備してロ−ル
表面に水膜を生成するロ−ルをブレ−ドコ−タ−側塗工
面に当接するように設けたことを特徴とする塗工装置を
提案するものである。またバッキングロ−ルに一部を沿
わせて走行するシ−トの一面をブレ−ドコ−タ−で、他
の一面をロ−ルコ−タ−で両面を同時塗工する装置にお
いて、乾燥機の前段の位置に、冷却機構を具備させてロ
−ル表面に水膜を生成するスウエッテイングロ−ルをブ
レ−ドコ−タ−側塗工面に当接するように設けたことを
特徴とする塗工装置を提案するものである。In order to achieve the above-mentioned object, the present invention provides a single-sided blade coating apparatus for a sheet traveling along a part of a backing roll. A coating which is provided at a position in the front stage of the dryer so as to be provided with a cooling mechanism so as to form a water film on the surface of the roller so as to come into contact with the coating surface on the blade coater side. It proposes an engineering device. Further, in a device for coating one side of a sheet running along a part of a backing roll with a blade coater and the other side simultaneously with a roll coater, a dryer is used. At the position of the preceding stage, a coating mechanism is provided so as to come into contact with the coating surface on the blade coater side, which is provided with a cooling mechanism to form a water film on the roll surface. It proposes an engineering device.
【０００９】また本発明の他の特徴は、前記冷却機構を
具備させたロ−ルに、該ロ−ルに転写された過剰分の塗
料あるいは生成された水膜を掻き落すためのドクタ−機
構を付設したものである。Another feature of the present invention is a doctor mechanism for scraping off the excess paint transferred to the roll or the produced water film on the roll equipped with the cooling mechanism. Is attached.
【００１０】なお本発明で用いるドクタ−機構は、ロ−
ル軸方向に全幅に亘り往復運動するドクタ−機構を用い
ることを可とする。The doctor mechanism used in the present invention is a rotary mechanism.
It is possible to use a doctor mechanism that reciprocates over the entire width in the axial direction.
【００１１】[0011]
【作用】スウエッテイングロ−ルは、冷却することによ
りロ−ル表面に結露が生じる。この結露水は、該ロ−ル
とブレ−ドコ−タ−側塗工面との間に薄い水膜を生成し
て、ロ−ル表面からの塗料離れを容易にする。またドク
タ−はスウエッテイングロ−ル表面に結露した水膜を一
周ごとに掻き落し、かつ該ロ−ルに転写された過剰分の
塗料によって塗工面が荒れて品質が悪化するのを防ぐ作
用を奏する。When the SWETTEIN ROLL is cooled, dew condensation occurs on the surface of the roll. This dew condensation water forms a thin water film between the roll and the blade coater side coated surface to facilitate the separation of the paint from the roll surface. In addition, the doctor has an effect of scraping off the water film condensed on the surface of the Sweat-Eng roll for each revolution, and preventing the quality of the coating surface from being deteriorated due to the excess paint transferred to the roll. Play.
【００１２】[0012]
【実施例】次ぎに本発明の一実施例を図面に従って説明
する。DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, one embodiment of the present invention will be described with reference to the drawings.
【００１３】図１は本発明塗工装置の代表的な実施例を
示したものであり、バッキングロ−ルに一部を沿わせて
走行するシ−トの一面をブレ−ドコ−タ−で、他の一面
をロ−ルコ−タ−で両面を同時塗工する。ロ−ルコ−タ
−３、ブレ−ドコ−タ−７、乾燥機10等の構成は従来の
ものと同一なので、ここでは説明を省略する。FIG. 1 shows a typical embodiment of the coating apparatus of the present invention, in which one side of a sheet running along a backing roll is covered by a blade coater. , The other side is simultaneously coated with a roll coater on both sides. The structure of the roll coater-3, the blade coater-7, the dryer 10 and the like is the same as that of the conventional one, and the description thereof is omitted here.
【００１４】本発明は、上記構成の塗工装置において、
乾燥機10の前段の位置に、冷却機構を具備させてロ−ル
表面に水膜を生成するスウエッテイングロ−ル13をブレ
−ドコ−タ−側塗工面に当接するように付設する。そし
て上記のスウエッテイングロ−ル13に対しては、例え
ば、図２のようにライン14から冷水、温水等の冷却媒体
を供給し、ロ−ル内部を通ってラインから冷却媒体が戻
るように構成する。このような構成のスウエッテイング
ロ−ルは、ライン15からロ−ル内を供給される冷却媒体
によってロ−ル表面温度をコントロ−ルすることによ
り、大気中の水分をロ−ル表面上に露結させる。The present invention provides the coating apparatus having the above structure,
In front of the dryer 10, a sweating roll 13 having a cooling mechanism and forming a water film on the roll surface is attached so as to abut the coating surface on the blade coater side. Then, for example, as shown in FIG. 2, a cooling medium such as cold water or hot water is supplied to the above-mentioned sweat ing roll 13 so that the cooling medium returns from the line through the inside of the roll. Constitute. The SWETTE-IN-GROLL having such a structure controls the roll surface temperature by the cooling medium supplied from the line 15 to the inside of the roll, so that the moisture in the atmosphere is transferred onto the roll surface. Dew.
【００１５】この様に上記スウエッテイングロ−ル13
は、冷却することによりロ−ル表面に結露が生じる。こ
の結露水は、該ロ−ルとブレ−ドコ−タ−側塗工面との
間に薄い水膜を生成する。この水膜はロ−ル本体とシ−
トの間に介置されるため、ロ−ル表面からの塗料離れを
容易にして、塗工面を荒らすことなく、ロ−ルにシ−ト
を接触させることが出来るのである。In this way, the above-mentioned SWETTE INGLE 13
As a result of cooling, dew condensation occurs on the roll surface. This condensed water forms a thin water film between the roll and the coating surface on the blade coater side. This water film is
Since it is interposed between the rolls, it is possible to easily release the paint from the roll surface and to bring the sheet into contact with the roll without roughening the coated surface.
【００１６】なお前記水膜を生成するスウエッテイング
ロ−ルには、ドクタ−機構16を付設することが望まし
い。その目的は、該ロ−ルに附着した過剰分の塗料ある
いはロ−ル表面に生成された水膜を一周ごとに掻き落す
ためである。このドクタ−機構は、ロ−ル軸方向に全幅
方向に往復運動するドクタ−機構を用いることを可とす
る。シ−トがロ−ルから離れるとき、僅かな塗料がロ−
ル表面ヘ転写される。この転写された塗料を放置する
と、再度シ−トと接触するときに塗工面を荒らす原因と
なる。そこでロ−ル軸方向に全幅方向に往復運動するド
クタ−機構を付設すると、確実にロ−ルから転写された
塗料を取り除くと共にロ−ル表面に生成された水膜を一
周ごとに掻き落して余剰の水膜が生成されるのを防ぐこ
とができる。It is desirable that a doctor mechanism 16 is attached to the sweat ing roll for forming the water film. The purpose is to scrape off the excess paint attached to the roll or the water film formed on the surface of the roll for each revolution. This doctor mechanism can use a doctor mechanism that reciprocates in the full width direction in the roll axis direction. When the sheet leaves the roll, a small amount of paint rolls off.
Is transferred to the surface. If the transferred paint is left as it is, it will cause the coated surface to become rough when it comes into contact with the sheet again. Therefore, by installing a doctor mechanism that reciprocates in the full width direction in the roll axis direction, the paint transferred from the roll is surely removed and the water film formed on the roll surface is scraped off every turn. It is possible to prevent generation of an excessive water film.
【００１７】[0017]
【発明の効果】以上述べたように本発明は、冷却機構を
具備させてロ−ル表面に水膜を生成するロ−ル（スウエ
ッテイングロ−ル）をブレ−ドコ−タ−側に設けたの
で、従来装置でなしえなかったブレ−ドコ−タ−側塗工
面の品質を悪化させることなくロ−ルの設置が可能にな
り、ブレ−ドコ−タ−塗工後にシ−トが通る走行通路が
規制され、装置のレイアウト変更が自由にできないとい
う操業上の制約を解消することができる。As described above, according to the present invention, the roll (sweat ing roll) for forming the water film on the roll surface by providing the cooling mechanism is provided on the blade coater side. Therefore, the roll can be installed without degrading the quality of the coating surface on the blade coater side, which could not be achieved by the conventional apparatus, and the sheet passes after the blade coater coating. It is possible to eliminate the operational constraint that the travel passage is restricted and the layout of the device cannot be changed freely.
【図１】本発明塗工装置の一実施例を示した骨格的略図
である。FIG. 1 is a schematic skeleton diagram showing an embodiment of a coating apparatus of the present invention.
【図２】スウエッテイングロ−ルの説明図である。FIG. 2 is an explanatory diagram of a sweat ing roll.
【図３】両面塗工装置の従来例を示した骨格的略図であ
る。FIG. 3 is a schematic skeleton diagram showing a conventional example of a double-sided coating device.
１ シ−ト ２ 巻出し機 ３ ロ−ルコ−タ− ４ バッキングロ−ル ５ 分散ロ−ル ６ メ−タリングロ−ル ７ ブレ−ドコ−タ− ８ アプリケ−タ ９ ブレ−ド 10 エアドライヤ− 11 リ−ドロ−ラ 12 押さえロ−ラ 13 スウエッテイングロ−ル 14 ライン 15 ライン 16 ドクタ− 1 sheet 2 Unwinder 3 roll coater 4 backing rolls 5 dispersion roll 6 metering rolls 7 Blade Coater 8 application 9 blades 10 Air dryer 11 lead roller 12 Press roller 13 SWEETE ING ROLL 14 lines 15 lines 16 Doctor
───────────────────────────────────────────────────── フロントページの続き (72)発明者 若林 秀夫 東京都武蔵野市中町３ −７ −８ 武蔵 野中町スカイハイツ211 ─────────────────────────────────────────────────── ─── Continued front page (72) Inventor Hideo Wakabayashi 3-7-8 Nakamachi, Musashino City, Tokyo Musashi Nonakamachi Sky Heights 211
Claims (4)
するシ−トに対し片面ブレ−ド塗工する装置において、
乾燥機の前段の位置に、冷却機構を具備してロ−ル表面
に水膜を生成するロ−ルをブレ−ドコ−タ−側塗工面に
当接するように設けたことを特徴とする塗工装置。1. A device for single-sided blade coating on a sheet that runs along a part of a backing roll.
A coating which is provided at a position in the front stage of the dryer so as to be provided with a cooling mechanism so as to form a water film on the surface of the roller so as to come into contact with the coating surface on the blade coater side. Engineering equipment.
するシ−トの一面をブレ−ドコ−タ−で、他の一面をロ
−ルコ−タ−で両面を同時塗工する装置において、乾燥
機の前段の位置に、冷却機構を具備してロ−ル表面に水
膜を生成するロ−ルをブレ−ドコ−タ−側塗工面に当接
するように設けたことを特徴とする塗工装置。2. An apparatus for simultaneously coating both sides with a blade coater on one side and a roll coater on the other side, which runs along a part of a backing roll. In the above, a roll provided with a cooling mechanism and forming a water film on the roll surface is provided at the position of the front stage of the dryer so as to abut on the coating surface on the blade coater side. Coating equipment.
ロ−ルに転写された過剰分の塗料あるいは生成された水
膜を掻き落すための機構を付設した請求項１又は２記載
の塗工装置。3. The roll provided with the cooling mechanism is further provided with a mechanism for scraping off the excess paint transferred to the roll or the water film formed. Coating equipment.
幅に亘って往復運動するドクタ−機構である請求項３記
載の塗工装置。4. The coating apparatus according to claim 3, wherein the scraping mechanism is a doctor mechanism that reciprocates over the entire width in the roll axis direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18590291A JPH057821A (en) | 1991-07-01 | 1991-07-01 | Coating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18590291A JPH057821A (en) | 1991-07-01 | 1991-07-01 | Coating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH057821A true JPH057821A (en) | 1993-01-19 |
Family
ID=16178883
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18590291A Pending JPH057821A (en) | 1991-07-01 | 1991-07-01 | Coating device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH057821A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006247604A (en) * | 2005-03-14 | 2006-09-21 | Oji Paper Co Ltd | Lead-in paper roll of coating equipment |
-
1991
- 1991-07-01 JP JP18590291A patent/JPH057821A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006247604A (en) * | 2005-03-14 | 2006-09-21 | Oji Paper Co Ltd | Lead-in paper roll of coating equipment |
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