JPH0611422B2 - Suction processing method and suction nozzle for coating layer edge portion - Google Patents
Suction processing method and suction nozzle for coating layer edge portionInfo
- Publication number
- JPH0611422B2 JPH0611422B2 JP63248953A JP24895388A JPH0611422B2 JP H0611422 B2 JPH0611422 B2 JP H0611422B2 JP 63248953 A JP63248953 A JP 63248953A JP 24895388 A JP24895388 A JP 24895388A JP H0611422 B2 JPH0611422 B2 JP H0611422B2
- Authority
- JP
- Japan
- Prior art keywords
- liquid
- coating
- suction
- suction nozzle
- pipe
- 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.)
- Expired - Lifetime
Links
Landscapes
- Application Of Or Painting With Fluid Materials (AREA)
- Coating Apparatus (AREA)
Description
【発明の詳細な説明】 〔産業上の利用分野〕 本発明は写真用フィルム・印画紙等の写真感光材料や写
真製版材料、磁気録音テープ等の磁気記録材料、感圧記
録紙・感熱記録紙等材料の製造において連続走行する長
尺可撓性支持体（以下「ウエブ」と称する）に液状塗布
組成物（以下塗布液とも称する）を塗布する工程の改良
に関し、更に詳しくは塗布層縁部の処理方法及び装置に
関するものである。DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to photographic light-sensitive materials such as photographic film and photographic paper, photoengraving materials, magnetic recording materials such as magnetic recording tape, pressure-sensitive recording paper and heat-sensitive recording paper. Regarding the improvement of the step of applying a liquid coating composition (hereinafter also referred to as a coating solution) to a continuously running long flexible support (hereinafter referred to as "web") in the production of materials such as The present invention relates to a processing method and device.
上記の如き塗布工程に於ては、塗布液の表面張力の作用
により、ウエブの幅方向両縁部に塗布厚膜部が発生し、
この厚膜部は後の乾燥工程において、乾燥の不均一を生
ずる原因となるので乾燥工程前に除去することが望まれ
る。米国特許第２，８９９，３３９号明細書にはこのよ
うな工程において、前記ウエブの幅方向両縁部に塗布液
を吸取るためのノズルを設け、該ノズルはＬ字型の２重
管構造であり、その外周部から希釈液・溶剤の噴霧液又
はジェット流を供給し、中央部から塗布液を希釈液・溶
剤と共に吸取る方法及び装置が開示されている。In the coating step as described above, due to the action of the surface tension of the coating liquid, a coating thick film portion is generated at both widthwise edges of the web,
This thick film portion causes non-uniformity in drying in the subsequent drying step, and therefore it is desirable to remove it before the drying step. In such a process, U.S. Pat. No. 2,899,339 is provided with a nozzle for sucking the coating liquid at both widthwise edges of the web, and the nozzle has an L-shaped double pipe structure. And a spraying solution or jet stream of the diluting liquid / solvent from the outer peripheral portion thereof, and a method and an apparatus for sucking the coating liquid together with the diluting liquid / solvent from the central portion.
更に特公昭５２−３８４０７号公報では塗布層縁部の塗
布液を周囲より加温された吸引ノズルによってだけ吸引
する方法が開示され、 又特開昭５６−７３５７９号公報では同じく二重管構造
の吸引ノズルの中央部から液体を塗布厚膜部に噴出さ
せ、この液体と塗布厚膜部の塗布液とを併せて吸引ノズ
ルに吸引することを特徴とする塗布物の製造方法が提案
されている。Further, Japanese Patent Publication No. 52-38407 discloses a method of sucking the coating liquid at the edge of the coating layer only by a suction nozzle heated from the surroundings, and Japanese Patent Laid-Open No. 56-73579 discloses the same double tube structure. A method for producing a coated product is proposed, which is characterized in that a liquid is ejected from a central portion of a suction nozzle to a coating thick film portion, and the liquid and the coating liquid of the coating thick film portion are suctioned together to a suction nozzle. .
更に、実開昭６０−４９９４９号公報では、先端部に洗
浄液の噴出口と吸引口とを設けた二重管構造の吸引ノズ
ルにおいて、該噴出口は該二重管の軸芯から外れた位置
に該軸芯と30度ないし８５度の角度をなす如く設け、該
吸引口は該二重管の中心軸部に設けたことを特徴とする
吸引ノズルが開示されている。Further, in Japanese Utility Model Laid-Open No. 60-49949, in a suction nozzle having a double pipe structure in which a cleaning liquid spouting port and a suction port are provided at the tip, the spouting port is located off the axis of the double pipe. There is disclosed a suction nozzle characterized in that it is provided so as to form an angle of 30 to 85 degrees with the axis, and the suction port is provided in the central axis portion of the double pipe.
しかしながら上記米国特許第２，８９９，３３９号明細
書に開示された方法は、吸引ノズルの外周部から供給さ
れる希釈液・溶剤の噴霧液又はジェット流がノズル先端
迄届かずに吸取られてしまい、所期の塗布層縁部の処理
が充分に行われず、 特公昭５２−３８４０７号公報による方法は吸引管内に
吸引された塗布液が管内に凝固して詰りを生じ、 特開昭５６−７３５７９号公報による方法は吸引ノズル
の中央部から噴出する液体がウエブの裏側すなわち反塗
布面に回り込んだり、周辺のパスローラーを汚すと言っ
た不都合が生じる。However, in the method disclosed in the above-mentioned US Pat. No. 2,899,339, the diluent or solvent spray liquid or jet stream supplied from the outer peripheral portion of the suction nozzle is sucked up without reaching the nozzle tip. However, the intended treatment of the edge of the coating layer is not sufficiently performed, and the method according to Japanese Patent Publication No. 52-38407 discloses that the coating liquid sucked into the suction tube is solidified in the tube to cause clogging. The method according to the publication has the disadvantage that the liquid ejected from the central portion of the suction nozzle goes around to the back side of the web, that is, the non-coated surface, and stains the pass rollers around the web.
更に実開昭６０−４９９４９号公報による吸引ノズルは
噴出する液体によりウエブの裏側に廻り込んだりあるい
は周辺のパスロールを汚すといった不都合を防止し、確
実な塗布層縁部の処理を行うことができるが、下記のよ
うな問題が新たに生じた。Further, the suction nozzle according to Japanese Utility Model Laid-Open No. 60-49949 can prevent the troubles such as sneaking around on the back side of the web or soiling the pass rolls around by the ejected liquid, and the edge of the coating layer can be surely treated. , The following problems have arisen.
即ち、より薄層の塗布においては塗布層縁部の厚塗り量
も少なくなり、従来よりノズルヘッドでの減圧及び排気
量が要求されるが、前記考案では中心部より吸引してい
るためノズル先端部での抵抗が大きく高減圧，高排気量
が困難である。その対策として特開昭５６−７３５７９
号公報に開示されている方法を用いると、洗浄液が被吸
引物である塗布層縁部に直接あたり塗布層縁部が乱れた
り，既に述べたごとくウエブの裏側に洗浄液が廻り込ん
だり，周辺のパスロールを汚すといった不都合が生じ好
ましくない。That is, in the case of coating a thinner layer, the amount of thick coating on the edge of the coating layer also decreases, and pressure reduction and exhaust amount at the nozzle head are required than in the past. It is difficult to achieve high decompression and high displacement with high resistance at the parts. As a countermeasure, Japanese Patent Laid-Open No. 56-73579
When the method disclosed in the publication is used, the cleaning liquid directly contacts the edge of the coating layer, which is the object to be aspirated, and the edge of the coating layer is disturbed, or as described above, the cleaning liquid wraps around the backside of the web, This is not preferable because of the inconvenience of soiling the pass roll.
また別の問題として，塗布液が水溶性の液体の場合には
洗浄液として水を用いることになるが，洗浄液を吸引ノ
ズルの中心から流すのみでは特に配管途中等で配管の拡
大あるいはバルブ等の後方での実質的な管径の拡大部等
で断熱膨張等の作用で温度が下がり水が凍結をおこす等
により配管を閉塞するために吸引を連続して行うことが
不可能となる。特に薄層塗布の場合問題であった。Another problem is that when the coating liquid is a water-soluble liquid, water is used as the cleaning liquid. However, if the cleaning liquid is caused to flow only from the center of the suction nozzle, the expansion of the pipe or the rear of the valve, especially in the middle of the pipe, will occur. In this case, the temperature is lowered by the action of adiabatic expansion or the like at a portion where the pipe diameter is substantially expanded, and the pipe is blocked due to freezing of water or the like, which makes continuous suction impossible. This was a problem particularly in the case of thin layer coating.
また更にノズル内あるいは配管内の洗浄法においては、
洗浄液が常温の液体では洗浄も不十分で閉塞をおこすこ
とが多い。Further, in the method of cleaning the inside of the nozzle or the pipe,
If the cleaning liquid is a liquid at room temperature, the cleaning is insufficient and often causes blockage.
本発明の目的は、上記従来技術の問題点を解消し厚塗り
量の少ないより薄層の塗布において、塗布層縁部の吸引
処理がウエブ及びパスローラの汚染を伴うことなく、か
つ、吸引配管の閉塞あるいはノズルヘッドの洗浄不足に
よる閉塞をおこすことなく、確実に厚塗り部を除去する
方法及び装置を提供することにある。An object of the present invention is to solve the above-mentioned problems of the prior art and to apply a thinner layer having a smaller thick coating amount, the suction treatment of the edge of the coating layer does not involve the contamination of the web and the pass roller, and the suction pipe It is an object of the present invention to provide a method and apparatus for surely removing a thick coating portion without causing clogging or clogging due to insufficient cleaning of a nozzle head.
本発明の上記目的は、 (1) 連続走行するウエブに液状塗布組成物を施した
後、ウエブの幅方向両縁部の塗布厚膜部の厚塗液状塗布
組成物を吸引する塗布層縁部の吸引処理方法であって、
吸引ノズルにより余分の液状塗布組成物を吸引し、加温
された洗浄液により該吸引ノズルの内壁を洗浄すること
を特徴とする塗布層縁部の吸引処理方法。The above object of the present invention is: (1) after applying a liquid coating composition to a continuously running web, a coating layer edge portion for sucking a thick coating liquid coating composition of a coating thick film portion on both edges in the width direction of the web The suction treatment method of
A suction treatment method for an edge portion of a coating layer, which comprises sucking excess liquid coating composition with a suction nozzle and washing the inner wall of the suction nozzle with a heated cleaning liquid.
(2) 当該洗浄液に該液の凝固点を降下させる添加物が
加えられたものを用いることを特徴とする請求項(1)記
載の塗布層縁部の吸引処理方法。(2) The method of suction treatment of an edge portion of a coating layer according to claim (1), characterized in that an additive for lowering the freezing point of the liquid is added to the cleaning liquid.
(3) 二重管構造よりなり、二重管の中心軸部に設けら
れた洗浄液の噴出管の噴出孔が該噴出管の先端及び管壁
より吸引ノズル内壁に向けて複数ケ設けられていること
を特徴とする吸引ノズルによって達成される。(3) It has a double pipe structure, and a plurality of injection holes for the cleaning liquid are provided in the central axis portion of the double pipe from the tip and wall of the cleaning pipe toward the inner wall of the suction nozzle. This is achieved by a suction nozzle characterized in that
本発明において吸引ノズルにより余分の液状塗布組成物
を吸引するということは、本発明の塗布層縁部の吸引処
理方法は吸引を主体とするということである。Suctioning the excess liquid coating composition with the suction nozzle in the present invention means that the method of suction treatment of the edge portion of the coating layer of the present invention mainly comprises suction.
本発明において、加温された洗浄液により該吸引ノズル
の内壁を洗浄するということは、洗浄液は塗布層縁部に
噴出させるものでなく、吸引ノズル内に吸引された液状
塗布組成物が吸引ノズル内壁に固着することのない様、
吸引ノズルの内壁に向けて噴射することにより、内壁に
付着したり、しようとする液状塗布組成物を加温された
洗浄液により溶解洗浄することを意味するものである。
その為吸引ノズルは二重管構造よりなり二重管の中心軸
部に設けられた洗浄液の噴出管の噴出孔が該噴出管の先
端及び管壁より吸引ノズル内壁に向けて複数ケ設けられ
ているのである。In the present invention, cleaning the inner wall of the suction nozzle with a heated cleaning liquid does not mean that the cleaning liquid is jetted to the edge of the coating layer, but the liquid coating composition sucked into the suction nozzle is the inner wall of the suction nozzle. So that it does not stick to
By spraying toward the inner wall of the suction nozzle, it means that the liquid coating composition to be attached to the inner wall or to be dissolved is washed with a heated washing liquid.
Therefore, the suction nozzle has a double tube structure, and a plurality of injection holes for the cleaning liquid are provided in the central shaft portion of the double tube from the tip and the wall of the injection pipe toward the inner wall of the suction nozzle. Is there.
本発明において、加温された洗浄液とは、通常の場合３
５℃以上に加温することであり、これによって吸引管内
における液状塗布組成物の洗浄が容易に行われ、更に洗
浄後の液の排気管内への固着及び凍結を防ぐことが出来
る。In the present invention, the heated cleaning solution is usually 3
By heating to 5 ° C. or higher, this makes it possible to easily wash the liquid coating composition in the suction pipe, and further to prevent the liquid after washing from sticking and freezing in the exhaust pipe.
本発明における洗浄液とは、液状塗布組成物が水溶性の
場合は水，溶剤系の場合はその組成物を溶解出来る溶剤
を言う。The cleaning liquid in the present invention refers to a solvent that can dissolve water when the liquid coating composition is water-soluble and a solvent that can dissolve the composition when it is a solvent system.
本発明において当該洗浄液に該液の凝固点を上昇させる
添加物を加えるということは、 例えば、洗浄液の噴出管に供給する洗浄液に水を用いる
場合、第３図に示すような排気配管16において、配管途
中に数分後に凍結がおこる。この凍結は配管径が拡大し
ている部位におこりやすく、流量を上げても凍結をおさ
えることはできない。この凍結は断熱膨張作用に基づく
ものと考えられるが、それを防止するために前述の如く
供給洗浄水の温度を３５℃以上に加温することの外に、
洗浄水供給タンク20中にエチレングリコール，ジエチレ
ングリコール，エチレングリコールモノエチルエーテ
ル，ジエチレングリコールモノメチルエーテル，酢酸メ
チル，メタノール，アセトン，メチルエチルケトン等の
凝固点を降下させる有機添加物を０．５〜１０重量％く
らい、又は、塩化カルシウム，硫酸マグネシウム，塩化
カリウム，炭酸マグネシウム等の凝固点を降下させる無
機物質（洗浄絵が水を主体とする場合には上記水に溶解
性のある塩等）を０．０５〜５重量％くらい添加するこ
とをいう。In the present invention, adding an additive that raises the freezing point of the liquid to the cleaning liquid means, for example, when water is used as the cleaning liquid to be supplied to the jet pipe of the cleaning liquid, in the exhaust pipe 16 as shown in FIG. Freezing occurs after a few minutes on the way. This freezing is likely to occur in a region where the pipe diameter is enlarged, and it cannot be suppressed even if the flow rate is increased. It is considered that this freezing is based on the adiabatic expansion action, but in order to prevent it, in addition to heating the temperature of the supplied wash water to 35 ° C. or higher as described above,
About 0.5 to 10% by weight of organic additives such as ethylene glycol, diethylene glycol, ethylene glycol monoethyl ether, diethylene glycol monomethyl ether, methyl acetate, methanol, acetone, and methyl ethyl ketone, which lower the freezing point, in the wash water supply tank 20, or , Calcium chloride, magnesium sulfate, potassium chloride, magnesium carbonate, and other inorganic substances that lower the freezing point (when the washing picture is mainly water, the above-mentioned water-soluble salts, etc.) are contained in an amount of 0.05 to 5% by weight. It means adding about.
以下添付図面によって本発明の内容を更に詳細に説明す
る。Hereinafter, the contents of the present invention will be described in more detail with reference to the accompanying drawings.
第１図は本発明の吸引ノズルの１実施例の側面一部断面
図である。第１図においてウエブ２が液状塗布組成物１
を塗布されて連続的に走行しており、ウエブの幅方向両
縁部の塗布厚膜部３の厚塗液状塗布組成物を本発明によ
る吸引ノズル４により除去処理する。吸引ノズル４は二
重管構造よりなり、二重管の中心軸部に設けられた洗浄
液の噴出管７の噴出孔５ｎは該噴出管７の先端及び管壁
より第２図に示すように吸引ノズルの内壁に向けて複数
個設けられ、ウエブ１，液状塗布組成物２，塗布厚塗部
３に直接洗浄液が当たらないようにしてある。先端部の
孔の角度θは、ノズルの構造にもよるが噴出管の中心軸
に対して、２０゜以上、好ましくは３０゜以上が使いや
すい。孔径は０．２〜３mmくらい、より好ましくは０．
７〜１．５mmぐらいがよい。また、噴出管７の先端径は
３〜１０mmくらい。より好ましくは４〜８mmくらいがよ
い。FIG. 1 is a partial side sectional view of an embodiment of the suction nozzle of the present invention. In FIG. 1, the web 2 is a liquid coating composition 1
Is continuously applied to the web, and the thick coating liquid coating composition of the coating thick film portion 3 on both widthwise edges of the web is removed by the suction nozzle 4 according to the present invention. The suction nozzle 4 has a double-pipe structure, and the jetting hole 5n of the washing liquid jetting pipe 7 provided at the central axis of the double pipe sucks from the tip of the jetting pipe 7 and the pipe wall as shown in FIG. Plural pieces are provided toward the inner wall of the nozzle so that the cleaning liquid does not directly contact the web 1, the liquid coating composition 2, and the coating thick coating portion 3. The angle θ of the hole at the tip portion is easy to use, although it depends on the structure of the nozzle and is 20 ° or more, preferably 30 ° or more with respect to the central axis of the ejection pipe. The pore diameter is about 0.2 to 3 mm, more preferably 0.
About 7 to 1.5 mm is good. Moreover, the tip diameter of the ejection pipe 7 is about 3 to 10 mm. More preferably, it is about 4 to 8 mm.
塗布層縁部は吸引ノズル先端６から吸引され、吸引され
た液状塗布組成物は洗浄液の噴出管７から吸引ノズル内
壁に向って噴出する洗浄液と共に吸引管８より排出され
る。The edge of the coating layer is sucked from the tip 6 of the suction nozzle, and the sucked liquid coating composition is discharged from the suction pipe 8 together with the cleaning liquid jetted from the cleaning liquid jet pipe 7 toward the inner wall of the suction nozzle.
排気能力を高めるためには吸引ノズルの内径は先端部よ
り徐々に拡大するか、もしくは第１図に示すように段階
的に拡大し、圧力損失をなるべく少なくした方がよい。
このような構造は軸芯に洗浄液を供給する本発明の型式
により可能である。In order to enhance the exhaust capacity, it is preferable that the inner diameter of the suction nozzle be gradually increased from the tip portion, or be gradually increased as shown in FIG. 1 to reduce the pressure loss as much as possible.
Such a structure is possible by the type of the present invention in which the cleaning liquid is supplied to the shaft core.
本発明に使用されるウエブとしては、紙，プラスチック
フィルム，金属，レジンコーテッド紙，合成紙等が含ま
れる。プラスチックフィルムの材質は例えばポリエチレ
ン，ポリプロピレン，等のポリオレフィン、ポリ酢酸ビ
ニル重合体，６，６−ナイロン，６−ナイロン等のポリ
アミド、ポリエチレンテレフタレート，ポリエチレン−
２，６−ナフタレート等のポリエステル、ポリカーボネ
ート、セルローストリアセテート，セルロースダイアセ
テート等のセルロースアセテート等が使用される。また
レジンコーティッド紙に用いる樹脂としては、ポリエチ
レンをはじめとするポリオレフィンが代表的であるが、
必ずしもこれに限定されない。又、金属ウエブとして
は、例えばアルミニウムウエブがある。The web used in the present invention includes paper, plastic film, metal, resin coated paper, synthetic paper and the like. The material of the plastic film is, for example, polyolefin such as polyethylene or polypropylene, polyvinyl acetate polymer, polyamide such as 6,6-nylon or 6-nylon, polyethylene terephthalate, polyethylene-
Polyester such as 2,6-naphthalate, polycarbonate, cellulose acetate such as cellulose triacetate, cellulose diacetate and the like are used. As a resin used for resin coated paper, polyolefin such as polyethylene is typical,
It is not necessarily limited to this. Further, the metal web includes, for example, an aluminum web.
本発明の効果を一層明確にするために、以下に実施例を
掲げる。In order to further clarify the effects of the present invention, examples will be given below.
実施例−１ 第４図に示すようなローラコート方式で、第３図に示す
ような塗布層縁部の吸引システムを用いて、下記に示す
水溶性液状塗布組成物の塗布を１２cc／m2の塗布量で塗
布速度５０ｍ／minで行った。Example 1 A roller coat system as shown in FIG. 4 was used to apply 12 cc / m 2 of the water-soluble liquid coating composition shown below using a suction system at the edge of the coating layer as shown in FIG. The coating amount was 50 m / min.
液状塗布組成物 カルシウム塩 １．５部 メタノール ３０ 部 水 ７０ 部 染料 ０．１部 上記液状塗布組成物１３を入れた塗布液パン１４からピ
ックアップローラ１２が液状塗布組成物をピックアップ
プし、余剰の分をブレード１５で掻落す。Liquid coating composition Calcium salt 1.5 parts Methanol 30 parts Water 70 parts Dye 0.1 parts The pickup roller 12 picks up the liquid coating composition from the coating liquid pan 14 containing the above liquid coating composition 13 The minutes are scraped off with a blade 15.
ピックアップローラ１２上の液状塗布組成物１３はコー
ティングローラ１１に転移され更にバックアップローラ
１０に支えられ連続走行するウエブ２の上に塗布され
る。塗布された液状塗布組成物１は乾燥される前に反転
パスローラ９をバックアップローラとして、ウエブ２の
幅方向両縁部の塗布厚塗部３の厚塗り液状塗布組成物１
を吸引ノズル４によって吸引する。The liquid coating composition 13 on the pickup roller 12 is transferred to the coating roller 11 and further applied onto the web 2 which is supported by the backup roller 10 and continuously runs. Before being dried, the applied liquid coating composition 1 uses the reverse pass roller 9 as a backup roller to form a thick coating liquid coating composition 1 of the coating thick coating portions 3 on both edges in the width direction of the web 2.
Is sucked by the suction nozzle 4.
吸引ノズル４の構造は第１図及び第２図で示す様な構造
で、吸引ノズル先端６は塗布層縁部の塗布厚塗部３に対
向し、余分の液状塗布組成物１を吸引する吸引管８は第
３図の示すように排気配管１６に連結されており排気タ
ンク１７を経て排気ポンプ１８で排出される。排気タン
ク１７は吸引された空気と、余分の液状塗布組成物と一
緒になった洗浄液とを分離する役目をもっている。排気
ポンプ１８としては２m3／min×５０cmHgを用いた。洗
浄液の噴出管７には洗浄水供給タンク２０より洗浄液と
して５０〜５００cc／minの純水を送り、温度を５０℃
に上昇させ洗浄水供給配管１９によって洗浄液の噴出管
７に補給し、洗浄液の噴出管７の先端及び該管壁より吸
引ノズル内壁に向けて計６ケの噴出孔より噴出させ吸引
ノズル内壁の洗浄を行った。吸引開始後１２０分まで凍
結をおこさず安定した吸引を行うことができた。この場
合の塗布層縁部の厚塗率ｃを吸引ノズルを使用しない場
合ａ，実開昭６０−４９９４９号公報に示す吸引ノズル
を用いた場合ｂと比較した図表を第５図(a)に示す。尚
塗布量の確認は液状塗布組成物に含まれる染料の濃度に
よって測定した。The structure of the suction nozzle 4 is as shown in FIGS. 1 and 2, and the suction nozzle tip 6 faces the coating thick coating portion 3 at the edge of the coating layer and sucks the excess liquid coating composition 1. The pipe 8 is connected to an exhaust pipe 16 as shown in FIG. 3 and is discharged by an exhaust pump 18 via an exhaust tank 17. The exhaust tank 17 serves to separate the sucked air and the cleaning liquid together with the excess liquid coating composition. As the exhaust pump 18, 2 m 3 / min × 50 cmHg was used. 50 to 500 cc / min of pure water as the cleaning liquid is sent from the cleaning water supply tank 20 to the cleaning liquid jetting pipe 7, and the temperature is set to 50 ° C.
The cleaning liquid supply pipe 19 to replenish the cleaning liquid to the ejection pipe 7, and the cleaning liquid is ejected from the tip and the pipe wall of the cleaning liquid toward the suction nozzle inner wall through a total of 6 ejection holes to clean the suction nozzle inner wall. I went. It was possible to perform stable suction without freezing up to 120 minutes after the start of suction. FIG. 5 (a) shows a chart comparing the thick coating rate c at the edge of the coating layer in this case with the case a in which a suction nozzle is not used and the case b in which a suction nozzle shown in Japanese Utility Model Laid-Open No. 60-49949 is used. Show. The coating amount was confirmed by measuring the concentration of the dye contained in the liquid coating composition.
第５図に示すように従来の吸引ノズルによる厚塗率約５
０％を本発明のノズルにより１５％程度にまで減らすこ
とが出来た。As shown in FIG. 5, the thick coating rate by the conventional suction nozzle is about 5
0% could be reduced to about 15% by the nozzle of the present invention.
尚、 但し、ａは厚塗り部の塗布量，ｂは平常部の塗布量であ
る。still, However, a is the coating amount of the thick coating portion, and b is the coating amount of the normal portion.
実施例−２ 実施例−１と同様な装置及び液状塗布組成物を用い塗布
量８cc／m2，塗布速度４０ｍ分で塗布を行い、塗布層縁
部を実施例−１と同様な吸引ノズルで吸引し平滑化し、
ノズル未使用のものと従来のノズル使用のものとを比較
した結果を第５図(b)に示す。薄層塗布の場合において
も前の実施例−１と同様の良好な結果を得た。薄層塗布
の場合従来のノズルでは厚塗り率が７５％迄上昇してい
ることが示されている。Example-2 Using the same apparatus and liquid coating composition as in Example-1, coating was carried out at a coating amount of 8 cc / m 2 and a coating speed of 40 m, and the edge of the coating layer was sucked with the same suction nozzle as in Example-1. Aspirate and smooth,
FIG. 5 (b) shows the result of comparison between the nozzle not using the nozzle and the nozzle using the conventional nozzle. Also in the case of thin layer coating, the same good results as in Example 1 above were obtained. In the case of thin layer coating, it is shown that the thick coating rate is increased up to 75% in the conventional nozzle.
またこの時、洗浄液には純水にエチレングリコールを５
％混合して用いた。吸引後１２０分まで凍結を示さず安
定した吸引を行うことができた。Also, at this time, the cleaning liquid contains 5 parts of ethylene glycol in pure water.
% Used as a mixture. Up to 120 minutes after the suction, stable suction could be performed without showing freezing.
上記に明らかなように、本発明による塗布層縁部の吸引
処理方法及び吸引ノズルにより、厚塗り量の少ないより
薄層の塗布においてもウエブ及びパスローラを汚染する
ことなく、又吸引配管の閉塞あるいはノズルヘッドの洗
浄不足をおこすことなく、確実に厚塗り部の除去が可能
となり、更に厚塗り率の低下が可能となり、更に高速塗
布・薄層塗布を可能にし、生産性の向上，品質の向上に
寄与することが出来た。As is clear from the above, the method and the suction nozzle for the edge portion of the coating layer according to the present invention do not contaminate the web and the pass roller even when coating a thinner layer with a small coating amount, or block the suction pipe or It is possible to reliably remove the thick coating part without causing insufficient cleaning of the nozzle head, further reduce the thick coating rate, enable higher speed coating / thin layer coating, improve productivity and improve quality. Was able to contribute to.
第１図は本発明の塗布層縁部の吸引処理方法を説明し、
吸引ノズルの１実施例を示す側面１部断面図、第２図は
同じく本発明の洗浄液の噴出管の噴出孔を説明する部分
拡大図、第３図は本発明の吸引処理装置の配管系統図、
第４図は本発明を実施する塗布装置の１実施例の側面
図、第５図(a)，(b)は本発明の実施例の厚塗り率の比較
図表である。 １……液状塗布組成物 ２……ウエブ、３……塗布厚塗部 ４……吸引ノズル ５ｎ……噴出管の噴出孔 ６……吸引ノズル先端 ７……洗浄液の噴出管 ８……吸引管 ９……反転パスローラ １０……バックアップローラ １１……コーティングローラ １２……ピックアップローラ １３……液状塗布組成物 １４……塗布液パン １５……ブレード、１６……排気配管 １７……排気タンク、１８……排気ポンプ １９……洗浄水供給配管 ２０……洗浄水供給タンクFIG. 1 illustrates a suction treatment method for the coating layer edge portion of the present invention,
FIG. 2 is a partial enlarged view for explaining an ejection hole of a cleaning liquid ejection pipe of the present invention, and FIG. 3 is a piping system diagram of the suction treatment device of the present invention. ,
FIG. 4 is a side view of one embodiment of a coating apparatus for carrying out the present invention, and FIGS. 5 (a) and 5 (b) are comparative charts of thick coating ratios of the embodiments of the present invention. 1 ... Liquid coating composition 2 ... Web, 3 ... Coating thick coating part 4 ... Suction nozzle 5n ... Spout tube jet hole 6 ... Suction nozzle tip 7 ... Washing liquid jet tube 8 ... Suction tube 9 ... Reversing pass roller 10 ... Backup roller 11 ... Coating roller 12 ... Pickup roller 13 ... Liquid coating composition 14 ... Coating liquid pan 15 ... Blade, 16 ... Exhaust pipe 17 ... Exhaust tank, 18 …… Exhaust pump 19 …… Cleaning water supply pipe 20 …… Cleaning water supply tank
Claims (3)
した後、ウエブの幅方向両縁部の塗布厚膜部の厚塗液状
塗布組成物を吸引する塗布層縁部の吸引処理方法であっ
て、吸引ノズルにより余分の液状塗布組成物を吸引し、
加温された洗浄液により該吸引ノズルの内壁を洗浄する
ことを特徴とする塗布層縁部の吸引処理方法。1. A method of suction treatment of an edge portion of a coating layer, which comprises applying a liquid coating composition to a continuously running web and then sucking a thick coating liquid coating composition in a thick coating portion on both edges in the width direction of the web. So, suck the excess liquid coating composition with the suction nozzle,
A suction treatment method for an edge portion of a coating layer, which comprises cleaning the inner wall of the suction nozzle with a heated cleaning liquid.
加物が加えられたものを用いることを特徴とする請求項
(1)記載の塗布層縁部の吸引処理方法。2. The cleaning liquid, to which an additive for lowering the freezing point of the liquid is added, is used.
(1) The suction treatment method for the edge portion of the coating layer described in (1).
けられた洗浄液の噴出管の噴出孔が該噴出管の先端及び
管壁より吸引ノズル内壁に向けて複数ケ設けられている
ことを特徴とする吸引ノズル。3. A plurality of jetting holes of a washing liquid jetting pipe having a double pipe structure and provided in a central shaft portion of the double pipe are provided from a tip and a pipe wall of the jetting liquid toward an inner wall of the suction nozzle. A suction nozzle characterized by having
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63248953A JPH0611422B2 (en) | 1988-10-04 | 1988-10-04 | Suction processing method and suction nozzle for coating layer edge portion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63248953A JPH0611422B2 (en) | 1988-10-04 | 1988-10-04 | Suction processing method and suction nozzle for coating layer edge portion |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7033124A Division JP2775236B2 (en) | 1995-01-30 | 1995-01-30 | A suction nozzle that performs a suction process on the edge of the coating layer of a continuously running web |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0299166A JPH0299166A (en) | 1990-04-11 |
| JPH0611422B2 true JPH0611422B2 (en) | 1994-02-16 |
Family
ID=17185865
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63248953A Expired - Lifetime JPH0611422B2 (en) | 1988-10-04 | 1988-10-04 | Suction processing method and suction nozzle for coating layer edge portion |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0611422B2 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0768208A (en) * | 1993-09-06 | 1995-03-14 | Matsushita Electric Ind Co Ltd | Intermittent coating device |
| JP2007237039A (en) * | 2006-03-07 | 2007-09-20 | Fujifilm Corp | Suction method and apparatus for coating liquid |
| JP5546516B2 (en) * | 2011-09-22 | 2014-07-09 | 富士フイルム株式会社 | Coating apparatus and coating method |
| WO2014125591A1 (en) * | 2013-02-14 | 2014-08-21 | 株式会社島津製作所 | Surface chemical treatment apparatus for fine patterning |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5673579A (en) * | 1979-11-19 | 1981-06-18 | Konishiroku Photo Ind Co Ltd | Production of coated object |
| JPS6049949B2 (en) * | 1980-11-08 | 1985-11-06 | 日本電気株式会社 | address history device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6049949U (en) * | 1983-09-12 | 1985-04-08 | 富士写真フイルム株式会社 | suction nozzle |
-
1988
- 1988-10-04 JP JP63248953A patent/JPH0611422B2/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5673579A (en) * | 1979-11-19 | 1981-06-18 | Konishiroku Photo Ind Co Ltd | Production of coated object |
| JPS6049949B2 (en) * | 1980-11-08 | 1985-11-06 | 日本電気株式会社 | address history device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0299166A (en) | 1990-04-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4611553A (en) | Suction nozzle | |
| US3956790A (en) | Method of apparatus for removing dust from the surface of a moving web | |
| JPS6342771A (en) | Method and device for coating | |
| US2899339A (en) | Foating to a moving web | |
| JPH0611422B2 (en) | Suction processing method and suction nozzle for coating layer edge portion | |
| US20020098280A1 (en) | Method for producing magnetic recording medium and apparatus therefor | |
| JP4046808B2 (en) | Dust removal method and apparatus for base film | |
| JP2775236B2 (en) | A suction nozzle that performs a suction process on the edge of the coating layer of a continuously running web | |
| US5755881A (en) | Apparatus for removing material from a coated moving web and coating apparatus using such apparatus | |
| JP2591432Y2 (en) | Coating equipment | |
| JPH04190870A (en) | Coating method and apparatus | |
| JP2002301417A (en) | Coating device and method | |
| JP3169636B2 (en) | Coating method and coating device | |
| JP2002282765A (en) | Method and apparatus for removing coating liquid | |
| JPH0194974A (en) | Coating method | |
| JPS6090065A (en) | Method and apparatus for coating | |
| JPH0567349B2 (en) | ||
| JPH0194975A (en) | Coating method | |
| JP5546516B2 (en) | Coating apparatus and coating method | |
| JP2667033B2 (en) | Roller curtain coating method | |
| JPS6075354A (en) | Method and device for coating | |
| JP2002066430A (en) | Coating solution sucking apparatus | |
| JPH07108213A (en) | Coating method | |
| JPH04244265A (en) | Coating method | |
| JPH02277579A (en) | Coating method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| S111 | Request for change of ownership or part of ownership |
Free format text: JAPANESE INTERMEDIATE CODE: R313111 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20080216 Year of fee payment: 14 |
|
| R350 | Written notification of registration of transfer |
Free format text: JAPANESE INTERMEDIATE CODE: R350 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20080216 Year of fee payment: 14 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20090216 Year of fee payment: 15 |
|
| EXPY | Cancellation because of completion of term | ||
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20090216 Year of fee payment: 15 |