JPS60102973A - Applicator - Google Patents

Applicator

Info

Publication number
JPS60102973A
JPS60102973A JP59215320A JP21532084A JPS60102973A JP S60102973 A JPS60102973 A JP S60102973A JP 59215320 A JP59215320 A JP 59215320A JP 21532084 A JP21532084 A JP 21532084A JP S60102973 A JPS60102973 A JP S60102973A
Authority
JP
Japan
Prior art keywords
paper web
coating
applicator
air knife
coating material
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
Application number
JP59215320A
Other languages
Japanese (ja)
Other versions
JPH0378146B2 (en
Inventor
シベルト　ウエステルガールド
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Wartsila Oy AB
Original Assignee
Wartsila Oy AB
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Wartsila Oy AB filed Critical Wartsila Oy AB
Publication of JPS60102973A publication Critical patent/JPS60102973A/en
Publication of JPH0378146B2 publication Critical patent/JPH0378146B2/ja
Granted legal-status Critical Current

Links

Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H25/00—After-treatment of paper not provided for in groups D21H17/00 - D21H23/00
    • D21H25/08—Rearranging applied substances, e.g. metering, smoothing; Removing excess material
    • D21H25/16—Rearranging applied substances, e.g. metering, smoothing; Removing excess material with a blast of vapour or gas, e.g. air knife
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C11/00—Component parts, details or accessories not specifically provided for in groups B05C1/00 - B05C9/00
    • B05C11/02—Apparatus for spreading or distributing liquids or other fluent materials already applied to a surface ; Controlling means therefor; Control of the thickness of a coating by spreading or distributing liquids or other fluent materials already applied to the coated surface
    • B05C11/06—Apparatus for spreading or distributing liquids or other fluent materials already applied to a surface ; Controlling means therefor; Control of the thickness of a coating by spreading or distributing liquids or other fluent materials already applied to the coated surface with a blast of gas or vapour
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H5/00—Special paper or cardboard not otherwise provided for
    • D21H5/0005—Processes or apparatus specially adapted for applying liquids or other fluent materials to finished paper or board, e.g. impregnating, coating
    • D21H5/006—Controlling or regulating
    • D21H5/0062—Regulating the amount or the distribution, e.g. smoothing, of essentially fluent material already applied to the paper; Recirculating excess coating material applied to paper
    • D21H5/007—Regulating the amount or the distribution, e.g. smoothing, of essentially fluent material already applied to the paper; Recirculating excess coating material applied to paper with a blast of gas or vapour, e.g. air knife

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

【発明の詳細な説明】 産業上の利用分野 本発明は、特許請求の範囲第１項の前文に定義された種
類のエア・ナイフ塗工機に関する。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The invention relates to an air knife coating machine of the type defined in the preamble of claim 1.

従来の技術 周知のエア・ナイフ塗工＋Ｊ＆においては、塗工物質が
、エア・ナイフ装置からかなり離れた位置で、移動中の
紙匹上に先ず塗布される。このため、紙匹上の塗工物質
には、それがエア・ナイフによって処理される前に変化
を受けるだけの時間がある。In air knife coating +J&, which is well known in the prior art, the coating material is first applied onto a moving paper web at a considerable distance from the air knife device. Thus, the coating material on the paper web has time to undergo changes before it is processed by the air knife.

従つ℃、塗工物質の液体成分の一部分は通常、紙匹内に
浸透し、その別の部分は蒸発する。これが塗工物質の粘
度と乾燥固形分とを増大させ、それによってエア・ナイ
フの有効性が低下する。このため、エア・ナイフ塗工機
は従前、約３００ないし４００　ｍ／ｍｉｎ　の比較的
低い紙匹速度で用いられ、塗工物質の乾燥固形分は通常
４０％未満という比較的少ないものでめった。さらにま
た、紙匹上に塗布される大蓋の余剰塗工物質に結び付く
塗工物質の尚い含水率のため、エア・ナイフの使用によ
り、しばしば発泡の問題がひき起こされた。Therefore, at 0.degree. C., a portion of the liquid component of the coating material typically penetrates into the paper web, while another portion evaporates. This increases the viscosity and dry solids content of the coating material, thereby reducing the effectiveness of the air knife. For this reason, air knife coaters have traditionally been used at relatively low web speeds of about 300 to 400 m/min and have rarely resulted in relatively low dry solids content of the coating materials, typically less than 40%. Furthermore, the use of air knives often caused foaming problems due to the still high moisture content of the coating material coupled with the excess coating material of the canopy being applied onto the paper web.

発明が解決しようとする問題点 本発明の目的は、篩い紙匹速度においても、また塗工物
質の乾燥固形分が萬い場合にも、効果的に作動するエア
・ナイフ塗工機を作り出丁ことにある。本発明の独特の
特徴を特許請求の範囲第１項に述べである。このように
して作られた塗工機によって本発明の目的が達成される
。SUMMARY OF THE INVENTION It is an object of the present invention to create an air knife coating machine that operates effectively at sieve web speeds and when the dry solids content of the coating material is low. It's in the middle of the day. The distinctive features of the invention are set out in claim 1. The object of the present invention is achieved by a coating machine made in this way.

問題点を解決するための手段 本発明の好適な実施例においては、エア・ナイフと塗工
物質塗布帯域の後部との間の距離にはぼ等しい紙匹の縦
方向での距離にわたって塗工物質が塗布される。これが
通常、最良の塗工結果を与える。塗工物質塗布夛クトの
断面が紙匹に向かう方向に連続的に縮小するということ
もまた好都合である。これにより、塗工物質の流れか塗
布器内で加速し、それによって、不純物がたまる可能性
のある低い流速を有する場所が除去される。SUMMARY OF THE INVENTION In a preferred embodiment of the invention, the coating material is applied over a distance in the longitudinal direction of the paper web approximately equal to the distance between the air knife and the rear of the coating material application zone. is applied. This usually gives the best coating results. It is also advantageous that the cross-section of the coating substance application strip decreases continuously in the direction towards the paper web. This accelerates the flow of coating material within the applicator, thereby eliminating locations with low flow velocities where impurities may accumulate.

この塗布器は通常２０ないし５０チの塗工物質の余剰量
を紙匹上に塗布し、この余剰量はエア・ナイフによって
取り除かれる。所望の塗布量が１０　ｇ／ｍ”の場合、
この塗布器は約１２ないし１５　ｌ／ｍ２を紙匹上に塗
布する。しかし、塗工物質の実質的な余剰が与えられな
いように塗工物質の供給が調整されても、このエア・ナ
イフは、余剰の塗工物質を吹き飛ばさない場合にも、尚
且つ塗工の品質に有利な影響を及ぼす。このような次第
なので、塗布器の機能か、塗布される塗工物質の余剰量
が零に近付き得るように、調整可能であることが重要で
ある。This applicator applies an excess amount of coating material, typically 20 to 50 inches, onto the paper web, which excess amount is removed by an air knife. If the desired coating weight is 10 g/m”,
This applicator applies approximately 12 to 15 l/m2 onto the paper web. However, even if the supply of coating material is adjusted so that there is no substantial surplus of coating material, this air knife will not blow away the excess coating material and Affects quality favorably. Because of this, it is important that the function of the applicator is adjustable so that the excess amount of coating substance applied can approach zero.

移動する紙匹は塗工物質塗布器を通り、それにより塗工
物質が紙匹上に塗り広げられる。そこから紙匹が塗布帯
域に入る塗布器の側を塗布器の前側と呼び、そこから紙
匹か塗布器を離れる側を後側と呼ぶ。本発明の好適な実
施例には、塗布器の後側の、塗布器と紙匹との間１／Ｃ
ｐ４整可能なスロットまたはギャップがある。このスロ
ットの高さを変えることＫより、紙匹上に慮り広げうれ
る塗工物質の量が調整される。木兄ＥｉＡＫよる塗工機
におい℃は、別の種類の塗布器、例えばたわみ性の塗工
ブレーＰまたは塗工バーを塗布帯域の後縁で紙匹に押し
付けるよ５Ｋした塗布器を用いることもできる。また独
々の押出し塗布器を用いてもよい。The moving paper web passes through a coating material applicator, which spreads the coating material onto the paper web. The side of the applicator from which the paper web enters the application zone is called the front side of the applicator, and the side from which the paper web leaves the applicator is called the rear side. A preferred embodiment of the invention includes a 1/C between the applicator and the paper web on the rear side of the applicator.
p4 There is an adjustable slot or gap. By varying the height of this slot, the amount of coating material that can be spread on the paper web is adjusted. It is also possible to use another type of applicator, such as a flexible coating blade P or a 5K applicator that presses a coating bar against the paper web at the trailing edge of the coating zone. can. A separate extrusion applicator may also be used.

塗布器の前縁に塗工物質のオーバフロー用のスロットま
たはギャップを配設することか有利であることが立証さ
れている。これＫよって、塗布器内にたまった不純物が
オーバフロー−スロットを経て流出できるという利点が
得られる。紙匹塗工工程にこの棟のオーバフロー塗布器
を用いることはそれ自体周知されている。It has proven advantageous to arrange a slot or a gap for the overflow of the coating material at the leading edge of the applicator. This has the advantage that impurities accumulated in the applicator can flow out via the overflow slot. The use of this ridge overflow applicator in the paper web coating process is known per se.

本発明による塗工機は、紙匹が、塗工されずに残される
側で、支持ドラムにより、塗工物質塗布器とエア・す４
７との位置で支えられれば、最良の状態で作動する。紙
匹の両面塗工のため、支えを全（使用せず、その代り本
発明による装置な紙匹の両側に用いることも可能である
。それには、なるべ（なら、塗工物質塗布器とエア・ナ
イフとを紙匹の反対側に対称に配設することか望ましい
。The coating machine according to the invention is characterized in that, on the side where the paper web is left uncoated, the support drum connects the coating substance applicator and the air stream.
It works best if supported in position 7. For coating both sides of the paper web, it is also possible not to use the support entirely, but instead to use the device according to the invention on both sides of the paper web. It is desirable to arrange the air knife and the air knife symmetrically on opposite sides of the paper web.

支持ドラムを用いる場合、その最も有利な直径は通常、
最小４００１に、最大１３００１ｍである。最も有利な
紙匹の速度は、４００　ｍ／ｍｉｎ　より高く、なるべ
（なら、約６００　ｍ／ｍｉｎ　であることか望ましい
。但し、本発明によれば、かなり小さい紙匹速度におい
ても有利な結果が得られる。When using a support drum, its most advantageous diameter is usually
The minimum length is 4001 m and the maximum length is 13001 m. The most advantageous paper web speed is higher than 400 m/min, preferably about 600 m/min. However, according to the invention, advantageous results can also be obtained at considerably lower paper web speeds. is obtained.

実施例および作用 ここで添付図面につき例示として本発明を説明する。Examples and effects The invention will now be described by way of example with reference to the accompanying drawings, in which: FIG.

第１図において、数字１は移動する紙または厚紙の紙匹
を示す。紙匹１は回転する支持ドラム２によって支えら
れるが、その直径は例えは０．５ｍでよい。塗工物質は
、同時に塗布器３の傾倒軸としても作用する導管４を経
″Ｃ塗工物質がボ／！で送り込まれる塗布器３によつ″
ｃ紙匹上に塗り広げられる。塗布器の傾倒運動は、１組
または数組のパワ・シリンダ５によつ１：４成される。In FIG. 1, the number 1 indicates a moving web of paper or cardboard. The paper web 1 is supported by a rotating support drum 2, which may have a diameter of, for example, 0.5 m. The coating material is fed into the applicator 3 through a conduit 4 which also serves as the tilting axis of the applicator 3, into which the coating material is fed by bo/!
c Spread on a sheet of paper. The tilting movement of the applicator is performed 1:4 by one or several sets of power cylinders 5.

調整可能な支え５によって塗布器の正確な作動位置か定
められる。パワ・シリンダ５は支え６に向かつ″′ｃ塗
布器３を押し付ける。この塗布器は、連続的に加速する
塗工物質の流れを得るため、紙匹１に向かう方向に連続
的にせばまる供給ダクトをＭする。An adjustable support 5 determines the exact working position of the applicator. The power cylinder 5 presses against the support 6 the applicator 3 which is continuously narrowed in the direction towards the paper web 1 in order to obtain a continuously accelerating flow of coating material. M the supply duct.

塗布器の後縁には、紙匹１と接触はしないがそれ自体と
紙匹１との間に狭いギャツ７″８を残すグレード７があ
る。塗布器から供給される塗工物質９は紙匹に吸Ｊ区さ
れ、エア・ナイフ装置１０のノズルの位置まで紙匹と共
に移動し、そこで塗工物質の余剰分は紙匹から吹き飛ば
される。塗布器３の後縁とエア・ナイフ装置１０のノズ
ルとの間の距離ａは、紙匹１が通常この距離’１５　ｍ
５ｅｃ　未満、なるべくなら３　ｍ５ｅｃ　未満、の間
に移動する８度に狭くなっている。さらに、塗布器の前
縁と後縁との間の距離は、全塗工工程の時間、即ち紙匹
上の点が塗布器の前縁１２からエア・ナイフ１０まで移
動するに要する時間が１５　ｍ５ｅｃ　より少ない、な
るべくなら９　ｍ５ｅｃ　より少ない程度に狭くなつ℃
いる。高い紙匹速度の場合には、紙匹が距離ａを０．３
　ｍ５ｅｃ　で移動でき、全塗工工程の時間もそれに応
じて０．６ないしＱ、９　ｍ５ｅｃ　とすることかでき
る。塗工物質の粘度は、ブレード７によりまたは他の何
等かの類似構成要素によって塗工物質層に生ずる強いせ
ん断応力のために低減される。この塗工層の状態は、塗
工層がエア・ナイフ１０の影ｑＩを受ける前には左程変
化せず、それによってエア・ナイフの機能の効率が向上
される。At the trailing edge of the applicator there is a grade 7 that does not come into contact with the paper web 1 but leaves a narrow gap 7″8 between itself and the paper web 1. The paper web moves with the paper web to the position of the nozzle of the air knife device 10, where the excess coating material is blown away from the paper web. The distance a between the nozzle and the paper web 1 is normally 15 m.
It is narrowed to 8 degrees moving between less than 5 ec, preferably less than 3 m5 ec. Furthermore, the distance between the leading and trailing edges of the applicator is determined by the time required for the entire coating process, i.e. the time it takes for a point on the paper web to travel from the leading edge 12 of the applicator to the air knife 10. less than m5ec, preferably narrower to less than 9 m5ec °C
There is. In the case of high paper web speed, the paper web reduces the distance a by 0.3
It can be moved at a speed of 0.6 to 9 m5ec, and the time for the entire coating process can be adjusted accordingly to 9 m5ec. The viscosity of the coating material is reduced due to the strong shear stress created in the coating material layer by the blade 7 or by any other similar component. The condition of this coating layer does not change significantly before the coating layer receives the shadow qI of the air knife 10, thereby improving the efficiency of the air knife function.

塗布器３の前縁には、紙匹１から可成の距離に位置する
調整可能な縁部材１１があり、それＫよって前記部材自
体と紙匹との間に可成広いヤヤッゾ１２が形成される。At the front edge of the applicator 3 there is an adjustable edge member 11 located at a considerable distance from the paper web 1, so that a fairly wide gap 12 is formed between said member itself and the paper web. Ru.

このギャップを経て塗工物質が塗布器から連続的に流れ
る。このオーバフローは、塗布器内の圧力を低（保戸こ
とにより、比較的少ないレベルに調整される。ヤヤツプ
１２を経て流出する塗工物質は集収タンク１３内に集め
られ、そこから出口管１４を経て塗工物質の流れの系統
内に吸い戻される。集収タンク１３の壁は二重で、その
間の壁間に冷却水が尋かれる。水冷却によりタンク１３
の内面か低ｇを保って水がその上に凝縮し、従つ″ｃ塗
工物質はこの面上にそれ程容易には粘層しない。集収タ
ンク１３の内部では、出口管１４内の吸引により℃、圧
力が大気圧よりやや低いレベルに保たれる。これにより
、周囲への塗工物質の拡散が低減される。ブレード１の
外側には、タンク１３の壁の水冷却がそれを清浄に保っ
たと同様にして塗工物質によるグレード７の汚損を低減
させる水冷カバー１５がある。The coating material continuously flows from the applicator through this gap. This overflow is regulated to a relatively low level by keeping the pressure in the applicator low. The coating material flowing out via the pipe 12 is collected in a collection tank 13 from where it is routed through the outlet pipe 14. The collecting tank 13 has double walls, with cooling water flowing between the walls.
The inner surface of the tank 13 maintains a low g and water condenses on it, so that the coating material does not stick as easily on this surface. °C, the pressure is kept at a level slightly below atmospheric pressure. This reduces the diffusion of the coating substance into the surroundings. Outside the blade 1, water cooling in the walls of the tank 13 cleans it. There is a water-cooled cover 15 that similarly reduces grade 7 fouling by coating materials.

塗布器が紙匹１に塗布する塗工物質の址は、正常の条件
下では、所望の最終的な塗工蓋よりも多い。余剰量は通
常約２０ないし５０％であるが、塗工物質の実質的な余
剰量を与えないように塗工物質の塗付を行うこともｉｉ
Ｊ能である。これは、塗ニゲレード１を適当な力で紙匹
１に向かつて押し付けることによって行われる。The amount of coating material that the applicator applies to the paper web 1 is, under normal conditions, greater than the desired final coating. The surplus amount is usually about 20 to 50%, but the application of the coating material may be carried out in such a way that there is no substantial surplus amount of the coating material.ii
It is J-Noh. This is done by pressing the coating 1 against the paper web 1 with an appropriate force.

本発明はここに示した実施例に限定されるものではな（
、その幾つかの修正か部付フレイムの範囲内におい℃可
能である。The present invention is not limited to the embodiments shown here (
, some modifications thereof are possible within the attached frame.

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

図面は、本発明による塗工機の実施例の断面図である。 １：紙匹　９：塗工物質 ２：支持ドラム　１０：エア・ナイフ１ｔｔ３：ｍ布器
　１１・・・縁部材 ４：導管　１２：前縁 ５：パワ・シリンダ　１３：果状タンク６：支え　１４
：出口管 １ニゲレード　１５：水冷カバー ８：ギャツｆ　ａ＝距離 代理人　浅　村　皓The drawing is a sectional view of an embodiment of a coating machine according to the invention. 1: Paper web 9: Coating material 2: Support drum 10: Air knife 1tt3: M cloth vessel 11...Edge member 4: Conduit 12: Leading edge 5: Power cylinder 13: Fruit tank 6: Support 14
:Exit pipe 1 Nigerade 15:Water cooling cover 8:Gatsu f a=Distance agent Akira Asamura

Claims (1)

【特許請求の範囲】 ｆｌｌ　エア・ナイフ装置と、塗工物質塗布器によって
紙匹上に堡工物質を塗布するために　動する紙匹の移動
方向で前記エア・ナイフ装置より前に配設された塗布帯
域とを組み合わせて具備し、正常な塗工速度で動（際の
前記紙匹が塗布帯域を離れて最大５　ｍ５ｅｃ　、なる
べ（なら最大３　ｍ５ｅｃ　、の時間内にエア・ナイフ
装置に到達するように前記塗布帯域が前記エア・ナイフ
装置に近接し℃置かれ、正常な塗〒速度で動（際の前記
紙匹が塗布帯域に入つ″ｃ最犬１５　ｍ５ｅｃ　、なる
べ（なら最大９　ｍ５ｅｃ　。 の時間内にエア・ナイフ装置に到達するように前記堅布
蛍域が動く紙匹の縦方向内で限定されるようにした移動
する紙または厚紙の紙匹の少な（共−而で塗工する装置
。 （２）　特許請求の範囲第１項に記載の装置において、
紙匹の縦方向における塗布帯域の延長部がほぼ塗布帯域
の線端からエア・す、イア装置までの距離と同じ長さで
あるようにした装置。 （３）　特許請求の範囲第１項または第２項に記載の装
置において、前記塗工物質塗布器が、紙匹に同かう方向
に連続的に狭くなる塗工物質供給ダクトを具えるように
した装置（［ｔ （４）　特許請求の範囲第１ｙＪまたは第２項に記載の
装置におい℃、前記塗布器が通常２０ないし５゜チの塗
工物質の余４Ａ量を紙匹−１二に塗布し、この余剰量が
エア・ナイフ装置によって取り除かれるようにした装置
。 （５）　％許請求の範囲第４．！、ｒ：ＩＶｃ記載の装
置が、塗工物質の前記余刺蓋を零に近い値にまで低減さ
せる装置を包含するようにした装置。 （６）特許請求の範囲第１項または第２項に記載の装置
が、前記塗布帯域の後縁における塗布器と紙匹との間の
ギャップと、前記イヤツブを調整し且つそれによって紙
匹上に塗布される塗工物質の世に影響を与える装置とを
具’１１４するようにした装置。 （７）　特許請求の範囲第１項または第２項に記載の装
置が、前記塗布帯域に紙匹が入る位置で、塗布器と紙匹
との間にオーバフロー・ギャップを包含するようＫした
装置。 （８）特許請求の範囲第１項または第２項に記載の移動
する紙匹を両面塗工する装置が紙匹の反対側に対称に配
設された２組の前記塗工物質塗布器とエア・ナイフ装置
とを具備するよ５Ｋした装置。 （９）特許請求の範囲第１項または第２項に記載のｖｃ
置において、紙匹が、エア・ナイフ装置の位置における
と同様に塗工帯域内で支持ドラムによって支えられるよ
うにした装置。 （１０１特許請求の範囲第１項または第２項に記載の装
置において、紙匹の移動速度が４００　ｍ／ｍｉｎより
も大、なるべ（なら約６００ｍ／ｍｉｎ　であるように
した装置。[Scope of Claims] fll an air knife device and a coating substance applicator disposed in front of the air knife device in the direction of movement of the moving paper web for applying a barrier substance onto the paper web by means of a coating substance applicator; The paper web leaves the coating zone for a maximum of 5 m5 ec at normal coating speeds, and is transferred to the air knife device within a time of up to 3 m5 ec, when the paper web leaves the coating zone at a normal coating speed. The coating zone is placed in close proximity to the air knife device and operated at a normal coating speed (when the paper web enters the coating zone at a temperature of 15 m5, preferably A small (co- (2) In the apparatus according to claim 1,
A device in which the extension of the coating zone in the longitudinal direction of the paper web is approximately the same length as the distance from the line end of the coating zone to the air supply device. (3) The apparatus according to claim 1 or 2, wherein the coating material applicator includes a coating material supply duct that continuously narrows in the same direction as the paper web. (4) In the apparatus according to claim 1 or 2, the applicator applies a remaining 4A amount of the coating material to a paper web of 12°C at a temperature of usually 20 to 5°C. (5) The apparatus according to claim 4.!, r: IVc, which removes the excess amount of coating material by means of an air knife device. (6) The apparatus according to claim 1 or 2 is characterized in that the apparatus includes a device for reducing the amount of water between the applicator and the paper web at the trailing edge of the coating zone. and a device for adjusting the ear and thereby influencing the flow of coating material applied onto the paper web. (7) Claim 1. Alternatively, the apparatus according to claim 2 is configured to include an overflow gap between the applicator and the paper web at a position where the paper web enters the coating zone. (8) Claim 1 The device for coating both sides of a moving paper web according to paragraph 1 or 2 comprises two sets of the coating material applicators and an air knife device arranged symmetrically on opposite sides of the paper web. 5K device. (9) VC according to claim 1 or 2.
In the position, the paper web is supported by a support drum in the coating zone as in the position of the air knife device. (101) An apparatus according to claim 1 or 2, in which the moving speed of the paper web is greater than 400 m/min, preferably approximately 600 m/min.
JP59215320A 1983-10-17 1984-10-16 Applicator Granted JPS60102973A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI833765A FI68536C (en) 1983-10-17 1983-10-17 LUFTKNIVSBESTRYKARE
FI833765 1983-10-17

Publications (2)

Publication Number Publication Date
JPS60102973A true JPS60102973A (en) 1985-06-07
JPH0378146B2 JPH0378146B2 (en) 1991-12-12

Family

ID=8517923

Family Applications (1)

Application Number Title Priority Date Filing Date
JP59215320A Granted JPS60102973A (en) 1983-10-17 1984-10-16 Applicator

Country Status (8)

Country Link
JP (1) JPS60102973A (en)
CA (1) CA1230965A (en)
DE (1) DE3438041C2 (en)
FI (1) FI68536C (en)
FR (1) FR2553305B1 (en)
IT (1) IT1176969B (en)
NO (1) NO844132L (en)
SE (1) SE8405099L (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0392799U (en) * 1990-01-11 1991-09-20
EP1925369A1 (en) * 2005-09-13 2008-05-28 Sunstar Giken Kabushiki Kaisha Highly viscous material coating applicator

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3526178C1 (en) * 1985-07-23 1986-08-14 Langguth GmbH & Co, 4400 Münster Gluing process for containers in labeling machines using e.g. of hot melt adhesives
DE3745173C2 (en) * 1986-07-25 2000-03-02 Valmet Corp Short burst paper coating
DE3735889C2 (en) * 1986-10-25 1994-02-03 Voith Gmbh J M Coating device
EP0477965A3 (en) * 1990-09-28 1992-05-27 National Starch And Chemical Investment Holding Corporation Hot-melt applicator
FI97817C (en) * 1993-10-27 1997-02-25 Valmet Paper Machinery Inc Method and arrangement for coating a moving track
DE19643742A1 (en) * 1996-10-23 1998-04-30 Vits Maschinenbau Gmbh Method and device for coating a paper web
DE10245074A1 (en) * 2002-09-27 2004-04-01 Voith Paper Patent Gmbh Doctor unit wipes off or equalises coating dye applied on running paper or board and features counter pressure unit, which exerts pressure on doctor element at height of pressure gap
DE102012001328A1 (en) * 2012-01-25 2013-07-25 Olbrich Gmbh Coating device for flexible webs, has air knife on one side of transport path opposite to application roller and is arranged, such that air flows out of air knife, where flexible web is pressed in direction of application roller

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE255662C (en) *
FR1300729A (en) * 1960-11-04 1962-08-10 Du Pont A method and apparatus comprising an air knife for coating a web of material with a layer of liquid
DE1577722A1 (en) * 1963-12-06 1970-01-29 Agfa Gevaert Ag Method and device for coating running films, tapes or the like. With viscous solutions
US3676178A (en) * 1969-04-25 1972-07-11 Agfa Gevaert Ag Process and apparatus for coating web supports

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0392799U (en) * 1990-01-11 1991-09-20
EP1925369A1 (en) * 2005-09-13 2008-05-28 Sunstar Giken Kabushiki Kaisha Highly viscous material coating applicator
EP1925369A4 (en) * 2005-09-13 2014-01-15 Sunstar Engineering Inc Highly viscous material coating applicator

Also Published As

Publication number Publication date
FI833765A (en) 1985-04-18
FR2553305A1 (en) 1985-04-19
FI833765A0 (en) 1983-10-17
DE3438041A1 (en) 1985-04-25
IT8423156A0 (en) 1984-10-16
IT1176969B (en) 1987-08-26
SE8405099L (en) 1985-04-18
SE8405099D0 (en) 1984-10-11
NO844132L (en) 1985-04-18
FI68536B (en) 1985-06-28
FR2553305B1 (en) 1987-08-14
DE3438041C2 (en) 1995-11-23
FI68536C (en) 1985-10-10
JPH0378146B2 (en) 1991-12-12
CA1230965A (en) 1988-01-05

Similar Documents

Publication Publication Date Title
US4452833A (en) Paper coating method
US3179536A (en) Method and apparatus for coating paper
US4440809A (en) Method and apparatus for recirculating coating liquid in a paper coating apparatus
JPS60102973A (en) Applicator
US6117236A (en) Curtain coating apparatus and method with continuous width adjustment
US4920913A (en) Device for coating a web of material
EP0675984B1 (en) Apparatus and method of minimizing skip coating on a paper web
EP0651095B1 (en) Method and assembly for coating a moving web
US5199991A (en) Short dwell coater apparatus
US5117767A (en) Device for coating a web of material traveling around a backing roll
USRE31695E (en) Two sided coater
EP0426606A2 (en) Short dwell coater apparatus
US4700658A (en) Device for coating traveling material
US5632815A (en) Inverted blade metering unit
US4712506A (en) Device for two-sided coating of a paper web
JP2002513105A (en) Coating method for moving web and arrangement for coating
NL8701022A (en) COATED PAPER, CARDBOARD AND SIMILAR AND METHOD AND AN APPARATUS FOR THE MANUFACTURE THEREOF
US4358481A (en) Method and apparatus for coating both sides of a moving web
US3080847A (en) Web coating and doctoring apparatus
SE8105971L (en) DEVICE FOR COATING A COAT
US6630026B1 (en) Apparatus for spreading treating mix on a moving paper—or cardboard web
JPH11200297A (en) Coating apparatus for wetting zone of machine for producing material web comprising especially paper or carton and coating method
FI95946C (en) The apparatus and method for coating paper
JPS6351744B2 (en)
US5968270A (en) Apparatus for decreasing skip coating on a paper web