JP2775236B2 - A suction nozzle that performs a suction process on the edge of the coating layer of a continuously running web - Google Patents
A suction nozzle that performs a suction process on the edge of the coating layer of a continuously running webInfo
- Publication number
- JP2775236B2 JP2775236B2 JP7033124A JP3312495A JP2775236B2 JP 2775236 B2 JP2775236 B2 JP 2775236B2 JP 7033124 A JP7033124 A JP 7033124A JP 3312495 A JP3312495 A JP 3312495A JP 2775236 B2 JP2775236 B2 JP 2775236B2
- Authority
- JP
- Japan
- Prior art keywords
- coating
- suction nozzle
- pipe
- suction
- liquid
- 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 - Fee Related
Links
Landscapes
- Coating Apparatus (AREA)
- Heat Sensitive Colour Forming Recording (AREA)
- Nozzles (AREA)
Description
【０００１】[0001]
【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 the continuous running of photographic photosensitive materials such as photographic films and photographic papers, photoengraving materials, magnetic recording materials such as magnetic recording tapes, pressure-sensitive recording papers and heat-sensitive recording papers. Long flexible support (hereinafter referred to as "web")
Liquid coating composition (hereinafter also referred to as a coating liquid)
More particularly, the present invention relates to an apparatus for processing an edge portion of a coating layer.
【０００２】[0002]
【従来の技術】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・溶剤と共に吸取る装置が開示されている。2. Description of the Related Art In the above-mentioned coating process, a coating thick film portion is generated on both edges in the width direction of the web due to the action of the surface tension of the coating solution, and this thick film portion is formed in a subsequent drying process. Therefore, it is desirable to remove them before the drying step because they may cause uneven drying. In such a process, U.S. Pat. No. 2,899,339 provides a nozzle for sucking a coating liquid at both edges in the width direction of the web, and the nozzle has an L-shaped double pipe structure. And the diluent
An apparatus for supplying a spray or jet stream of a solvent and sucking a coating liquid together with a diluting liquid and a solvent from a central portion is disclosed.
【０００３】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５６−７３
５７９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。 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, Japanese Patent Publication No. 52-38407 discloses a method in which a coating solution at the edge of a coating layer is sucked only by a suction nozzle heated from the surroundings.
Japanese Patent Application Laid-Open No. 579/1992 is also characterized in that a liquid is ejected from the central portion of a suction nozzle having a double-tube structure to the thick coating portion, and the liquid and the coating solution in the thick coating portion are sucked together by the suction nozzle. A method for producing a coating has been proposed. Furthermore,
In Japanese Utility Model Laid-Open Publication No. 60-49949, in a suction nozzle having a double pipe structure provided with a cleaning liquid jet port and a suction port at the tip, the jet port is located at a position off the axis of the double pipe. A suction nozzle is disclosed, which is provided so as to form an angle of 30 to 85 degrees with the axis, and the suction port is provided at a central axis of the double pipe.
【０００４】[0004]
【発明が解決しようとする課題】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、周辺のパスローラを汚すと言った不都合
が生じる。However, the method disclosed in the above-mentioned U.S. Pat. No. 2,899,339 discloses a method in which a spray or jet stream of a diluent / solvent supplied from the outer periphery of a suction nozzle is used. It was sucked without reaching the tip, and the intended treatment of the coating layer edge was not performed sufficiently.
According to the method disclosed in Japanese Patent Publication No. 52-38407, the coating liquid sucked into the suction tube solidifies in the tube and causes clogging. Disadvantageously, such as sneaking into the back side, that is, the anti-coating surface, and soiling the surrounding pass rollers.
【０００５】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ラ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。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
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
ローラを汚すといった不都合が生じ好ましくない。Further, the suction nozzle disclosed in Japanese Utility Model Laid-Open Publication No. Sho 60-49949 prevents inconveniences such as spilling onto the back side of the web by the ejected liquid or soiling the pass rollers around the web, and ensures that the edge of the coating layer is treated. However, the following new problems have arisen. That is, in the application of a thinner layer, the amount of thick coating at the edge of the coating layer is also reduced,
Conventionally, pressure reduction and exhaust volume at the nozzle head are required. However, in the above-described invention, since suction is performed from the central portion, resistance at the nozzle tip is large, and high pressure reduction and high exhaust volume are difficult.
As a countermeasure, if the method disclosed in JP-A-56-73579 is used, the cleaning liquid directly hits the edge of the coating layer, which is the object to be sucked, and the edge of the coating layer is disturbed. It is not preferable because the cleaning liquid is spilled around and the surrounding pass rollers are stained.
【０００６】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。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。As another problem, when the coating liquid is a water-soluble liquid, water is used as the cleaning liquid. However, if the cleaning liquid is merely flowed from the center of the suction nozzle, the expansion of the pipe or the valve is required particularly in the middle of the pipe. The temperature is lowered by the effect of adiabatic expansion or the like at the substantial enlarged portion of the pipe diameter at the rear of the pipe, etc., so that the water is frozen and the pipe is closed, so that it is impossible to continuously perform suction. This was a problem especially in the case of thin layer coating. Further, in a method of cleaning the inside of a nozzle or a pipe, if the cleaning liquid is a liquid at room temperature, the cleaning is often insufficient and the cleaning liquid is often clogged.
【０００７】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、かつ吸引配管を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
を除去する装置を提供することにある。SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned problems of the prior art, and to apply a thinner layer with a smaller amount of thick coating without causing contamination of the web and pass rollers by suction processing at the edge of the coating layer. An object of the present invention is to provide an apparatus for reliably removing a thick coating portion without blocking a pipe or blocking the nozzle head due to insufficient cleaning.
【０００８】[0008]
【課題を解決するための手段及び作用】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塗布組
成物を吸引する塗布層縁部の吸引ノズルにおいて、該吸
引ノズルが外周部の吸引ノズルと中央部の洗浄液噴出管
の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、上記塗布厚膜部に直接当た
らないように、該噴出管の先端部及び管壁より吸引ノズ
ル内壁に向けて複数個設けられていることを特徴とする
連続走行するウエブの塗布層縁部の吸引処理を行う吸引
ノズル、によって達成される。The objects of the present invention are as follows: (1) After applying a liquid coating composition to a continuously running web, a thick coating is applied to both sides of the web in the width direction. In the suction nozzle at the edge of the coating layer for sucking the liquid coating composition, the suction nozzle has a double-pipe structure of a suction nozzle at the outer periphery and a cleaning liquid ejection pipe at the center, and is provided at the central axis of the double pipe. A plurality of ejection holes of the washing liquid ejection tube are provided from the tip end portion and the tube wall of the ejection tube toward the inner wall of the suction nozzle so as not to directly hit the coating thick film portion.
This is achieved by a suction nozzle that performs a suction process on the edge of the coating layer of the continuously running web .
【０００９】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。本発明においては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が好ましい。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
成物を凝固点降下剤を加えかつ加温された洗浄液により
溶解洗浄することが好ましい。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部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。[0009] The suction treatment method of the edge portion of the coating layer according to the present invention mainly involves suction. In the present invention, it is preferable to clean the inner wall of the suction nozzle with a heated cleaning liquid. The cleaning liquid is not ejected to the edge of the coating layer, and is sprayed toward the inner wall of the suction nozzle so that the liquid coating composition sucked into the suction nozzle does not adhere to the inner wall of the suction nozzle. It is preferable to add a freezing point depressant and dissolve and wash the liquid coating composition to be adhered or to be treated with a heated washing liquid. Therefore, the suction nozzle has a double-pipe structure, and a plurality of ejection holes of the washing liquid ejection pipe provided at the central shaft portion of the double pipe are provided from the tip end of the ejection pipe and the pipe wall toward the inner wall of the suction nozzle. -ing
【００１０】本発明において、加温された洗浄液とは、
通常の場合３５℃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。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。[0010] In the present invention, the heated cleaning solution is
Normally, the temperature is raised to 35 ° C. or higher, whereby the liquid composition in the suction pipe can be easily washed, and the liquid after cleaning can be prevented from sticking to the exhaust pipe and freezing. The cleaning liquid in the present invention refers to water when the liquid coating composition is water-soluble, and a solvent capable of dissolving the composition when the liquid coating composition is a solvent type.
【００１１】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、図３
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，炭酸マグス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
る縁等）を０．０５〜５重量％くらい添加することをい
う。In the present invention, the addition of an additive to the cleaning liquid to raise the freezing point of the liquid means that, for example, when water is used as the cleaning liquid supplied to the cleaning liquid ejection pipe, FIG.
In the exhaust pipe 16 as shown in FIG. This freezing tends to occur in a portion where the pipe diameter is enlarged, and the freezing cannot be suppressed even if the flow rate is increased. This freezing is considered to be based on the adiabatic expansion action. In order to prevent the freezing, in addition to heating the supply washing water to 35 ° C. or higher as described above, ethylene glycol is added to the washing water supply tank 20. About 0.5 to 10% by weight of organic additives that lower the freezing point, such as calcium chloride, magnesium sulfate, potassium chloride, diethylene glycol, ethylene glycol monoethyl ether, diethylene glycol monomethyl ether, methyl acetate, methanol, acetone, methyl ethyl ketone, etc. And about 0.05 to 5% by weight of an inorganic substance such as magnesium carbonate which lowers the freezing point (such as a water-soluble edge when the washing picture is mainly composed of water).
【００１２】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。図１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。図１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
先端及び管壁より図２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。Hereinafter, the contents of the present invention will be described in more detail with reference to the accompanying drawings. FIG. 1 is a partial side sectional view of one embodiment of the suction nozzle of the present invention. In FIG. 1, a web 2 is coated with a liquid coating composition 1 and runs continuously, and a thick coating liquid coating composition of a coating thick film portion 3 at both edges in the width direction of the web is applied to a suction nozzle 4 according to the present invention. To remove. The suction nozzle 4 has a double-pipe structure, and an ejection hole 5n of a cleaning liquid ejection pipe 7 provided at a central shaft portion of the double pipe has a suction nozzle as shown in FIG. A plurality of webs 1, a liquid coating composition 2,
The cleaning liquid is not directly applied to the thick coating part 3. The angle θ of the hole at the tip is 20 ° or more, preferably 30 ° with respect to the center axis of the ejection pipe, depending on the structure of the nozzle.
The above is easy to use. The hole diameter is preferably about 0.2 to 3 mm, more preferably about 0.7 to 1.5 mm. The tip diameter of the jet pipe 7 is about 3 to 10 mm. More preferably, it is about 4 to 8 mm.
【００１３】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。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、もしくは図１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。The edge portion of the coating layer is sucked from the suction nozzle tip 6, and the sucked liquid coating composition is sucked together with the cleaning liquid ejected from the cleaning liquid jet pipe 7 toward the inner wall of the suction nozzle.
Is more exhausted. In order to increase the evacuation capacity, the inner diameter of the suction nozzle should be gradually enlarged from the front end, or it should be increased stepwise as shown in FIG. 1 to reduce the pressure loss as much as possible. Such a structure is possible according to the type of the present invention in which the cleaning liquid is supplied to the shaft core.
【００１４】[0014]
【実施例】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。 （実施例−１）水溶性液状塗布組成物の塗布を１２ｃｃ
／ｍ2 の塗布速度５０ｍ／min で行った。吸引ノズル４
の構造は図１及び図２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は図３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の先端部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と比較した図表を図４（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。図４に示すように従来の吸引ノズルによ
る厚塗率約５０％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。尚、厚塗り率％＝｛(a−ｂ）
／ｂ｝×１００、但し、ａは厚塗り部の塗布量，ｂは平
常部の塗布量である。EXAMPLES In order to further clarify the effects of the present invention, examples will be given below. (Example-1) 12 cc of a water-soluble liquid coating composition was applied.
/ M 2 at a coating speed of 50 m / min. Suction nozzle 4
1 and 2, the suction nozzle tip 6 is opposed to the thick coating portion 3 at the edge of the coating layer, and the suction pipe 8 for sucking the excess liquid coating composition 1 is shown in FIG. Is connected to the exhaust pipe 16 and exhausted by the exhaust pump 18 via the exhaust tank 17. The exhaust tank 17 has a function of separating the suctioned air from the cleaning liquid together with the excess liquid coating composition. As the exhaust pump 18, 2 m 3 / min × 50 cmHg was used. The cleaning liquid is supplied from the cleaning water supply tank 20 to the cleaning liquid ejection pipe 7 as 50 to 50 μm.
500 cc / min of pure water is sent, the temperature is raised to 50 ° C., and the cleaning liquid is supplied to the cleaning pipe 7 by the cleaning water supply pipe 19, and the cleaning liquid is supplied from the tip of the cleaning pipe 7 and the pipe wall toward the suction nozzle inner wall. The suction nozzles were jetted from a total of six jet holes to wash the inner wall of the suction nozzle. Stable suction could be performed without freezing until 120 minutes after the start of suction. FIG. 4 (a) shows a chart comparing the thick coating rate c at the edge of the coating layer in this case with a when no suction nozzle is used and with b when a suction nozzle described in Japanese Utility Model Application Laid-Open No. 60-49949 is used. . The amount of the coating was confirmed by measuring the concentration of the dye contained in the liquid coating composition. As shown in FIG. 4, the thick coating rate of about 50% by the conventional suction nozzle was reduced to about 15% by the nozzle of the present invention. Incidentally, the thick coating rate% = ｛(a−b)
/ B｝ × 100, where a is the amount of application in the thickly coated area and b is the amount of application in the normal area.
【００１５】（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図４（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 performed at a coating amount of 8 cc / m 2 and a coating speed of 40 m, and the edge portion of the coating layer was the same as in Example 1. FIG. 4 (b) shows the result of comparison between a nozzle not used and a conventional nozzle using the same nozzle.
Shown in In the case of thin layer coating, the same good results as in Example 1 were obtained. In the case of thin layer coating, it is shown that the thick coating rate is increased to 75% in the conventional nozzle.
【００１６】またこの時、洗浄液には純水に凝固点降下
剤として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。At this time, pure water was mixed with 5% of ethylene glycol as a freezing point depressant, and the washing liquid was used. Stable suction could be performed without showing freezing until 120 minutes after suction.
【００１７】[0017]
【発明の効果】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を行う吸引ノズルにより、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 apparent from the above, the suction nozzle for performing the suction treatment of the edge portion of the coating layer according to the present invention does not contaminate the web and the pass roller even when applying a thin layer with a small amount of coating, and Thick coating can be reliably removed without blocking the suction pipe or insufficient cleaning of the nozzle head, further reducing the rate of thick coating, enabling high-speed coating and thin layer coating, and improving productivity. And contributed to the improvement of quality.
【図１】本発明の塗布層縁部の吸引処理を行う、吸引ノ
ズルの１実施例を示す側面１部断面図FIG. 1 is a cross-sectional view of a part of a side surface showing an embodiment of a suction nozzle for performing a suction process of an edge portion of a coating layer according to the present invention.
【図２】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FIG. 2 is a partially enlarged view similarly illustrating a jet hole of a jet pipe for cleaning liquid of the present invention.
【図３】本発明の吸引処理装置の配管系統図FIG. 3 is a piping system diagram of the suction processing apparatus of the present invention.
【図４】（ａ），（ｂ）は本発明の実施例の厚塗り率の
比較図表である。FIGS. 4A and 4B are comparison charts of a thick coating rate according to an example of the present invention.
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 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 DESCRIPTION OF SYMBOLS 1 Liquid coating composition 2 Web 3 Thick coating part 4 Suction nozzle 5n Ejection hole of ejection pipe 6 Suction nozzle tip 7 Cleaning liquid ejection pipe 8 Suction pipe 16 Exhaust pipe 17 Exhaust tank 18 Exhaust pump 19 Wash water supply pipe 20 Wash water Supply tank
Claims (1)
施した後、ウエブの幅方向両縁部の塗布厚膜部の厚塗液
塗布組成物を吸引する塗布層縁部の吸引ノズルにおい
て、該吸引ノズルが外周部の吸引ノズルと中央部の洗浄
液噴出管の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、上記塗布厚膜部に
直接当たらないように、該噴出管の先端部及び管壁より
吸引ノズル内壁に向けて複数個設けられていることを特
徴とする連続走行するウエブの塗布層縁部の吸引処理を
行う吸引ノズル。Claims: 1. After applying a liquid coating composition to a continuously running web, a suction nozzle at the edge of the coating layer for sucking the thick coating liquid coating composition at the coating thick film portions at both edges in the width direction of the web, The suction nozzle has a double-pipe structure of a suction nozzle at an outer peripheral portion and a cleaning liquid jetting pipe at a central portion, and a jetting hole of a cleaning liquid jetting pipe provided at a central axis portion of the double pipe is provided at the coating thick film portion. In order to avoid direct contact, the suction processing of the edge of the coating layer of the continuously running web is characterized in that a plurality of the jet pipes are provided from the tip and the pipe wall toward the suction nozzle inner wall.
Suction nozzle to do .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7033124A 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 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7033124A 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 |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63248953A Division JPH0611422B2 (en) | 1988-10-04 | 1988-10-04 | Suction processing method and suction nozzle for coating layer edge portion |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH07299410A JPH07299410A (en) | 1995-11-14 |
| JP2775236B2 true JP2775236B2 (en) | 1998-07-16 |
Family
ID=12377883
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7033124A Expired - Fee Related 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 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2775236B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100659867B1 (en) | 2005-11-29 | 2006-12-19 | 삼성에스디아이 주식회사 | Injection nozzle of drying device |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5068577B2 (en) * | 2007-04-25 | 2012-11-07 | 株式会社エムテーシー | Photoresist removal device for rectangular workpiece |
| JP5416617B2 (en) * | 2010-03-03 | 2014-02-12 | 富士フイルム株式会社 | Coating system and coating method |
| JP5546516B2 (en) * | 2011-09-22 | 2014-07-09 | 富士フイルム株式会社 | Coating apparatus and coating method |
| NL2019096B1 (en) * | 2017-06-20 | 2018-12-27 | Suss Microtec Lithography Gmbh | Nozzle tip adapter, nozzle assembly as well as nozzle |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS591391B2 (en) * | 1979-11-19 | 1984-01-11 | コニカ株式会社 | Manufacturing method of applied product |
| JPS6086467U (en) * | 1983-11-18 | 1985-06-14 | ナショナル住宅産業株式会社 | Painting suction nozzle |
-
1995
- 1995-01-30 JP JP7033124A patent/JP2775236B2/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100659867B1 (en) | 2005-11-29 | 2006-12-19 | 삼성에스디아이 주식회사 | Injection nozzle of drying device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH07299410A (en) | 1995-11-14 |
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