JPH0299166A - Suction treatment of edge part of coating layer and suction nozzle - Google Patents
Suction treatment of edge part of coating layer and suction nozzleInfo
- Publication number
- JPH0299166A JPH0299166A JP24895388A JP24895388A JPH0299166A JP H0299166 A JPH0299166 A JP H0299166A JP 24895388 A JP24895388 A JP 24895388A JP 24895388 A JP24895388 A JP 24895388A JP H0299166 A JPH0299166 A JP H0299166A
- Authority
- JP
- Japan
- Prior art keywords
- suction
- suction nozzle
- liquid
- nozzle
- coating composition
- 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
Links
- 239000011247 coating layer Substances 0.000 title claims description 25
- 239000007788 liquid Substances 0.000 claims abstract description 86
- 239000008199 coating composition Substances 0.000 claims abstract description 34
- 239000000654 additive Substances 0.000 claims abstract description 4
- 230000000996 additive effect Effects 0.000 claims abstract description 4
- 238000004140 cleaning Methods 0.000 claims description 45
- 238000000034 method Methods 0.000 claims description 22
- 230000008014 freezing Effects 0.000 claims description 12
- 238000007710 freezing Methods 0.000 claims description 12
- 238000005406 washing Methods 0.000 abstract description 13
- 230000015271 coagulation Effects 0.000 abstract 1
- 238000005345 coagulation Methods 0.000 abstract 1
- 238000000576 coating method Methods 0.000 description 43
- 239000011248 coating agent Substances 0.000 description 42
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 15
- 239000000123 paper Substances 0.000 description 7
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 6
- 239000010410 layer Substances 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- -1 polyethylene Polymers 0.000 description 4
- 239000002904 solvent Substances 0.000 description 4
- ZWEHNKRNPOVVGH-UHFFFAOYSA-N 2-Butanone Chemical compound CCC(C)=O ZWEHNKRNPOVVGH-UHFFFAOYSA-N 0.000 description 3
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 3
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 3
- MTHSVFCYNBDYFN-UHFFFAOYSA-N diethylene glycol Chemical compound OCCOCCO MTHSVFCYNBDYFN-UHFFFAOYSA-N 0.000 description 3
- 238000001035 drying Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000011347 resin Substances 0.000 description 3
- 229920005989 resin Polymers 0.000 description 3
- CSNNHWWHGAXBCP-UHFFFAOYSA-L Magnesium sulfate Chemical compound [Mg+2].[O-][S+2]([O-])([O-])[O-] CSNNHWWHGAXBCP-UHFFFAOYSA-L 0.000 description 2
- 239000004677 Nylon Substances 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 2
- WCUXLLCKKVVCTQ-UHFFFAOYSA-M Potassium chloride Chemical compound [Cl-].[K+] WCUXLLCKKVVCTQ-UHFFFAOYSA-M 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 239000003085 diluting agent Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 229920001778 nylon Polymers 0.000 description 2
- 239000002985 plastic film Substances 0.000 description 2
- 229920006255 plastic film Polymers 0.000 description 2
- 229920000573 polyethylene Polymers 0.000 description 2
- 229920000098 polyolefin Polymers 0.000 description 2
- 238000010186 staining Methods 0.000 description 2
- SBASXUCJHJRPEV-UHFFFAOYSA-N 2-(2-methoxyethoxy)ethanol Chemical compound COCCOCCO SBASXUCJHJRPEV-UHFFFAOYSA-N 0.000 description 1
- ZNQVEEAIQZEUHB-UHFFFAOYSA-N 2-ethoxyethanol Chemical compound CCOCCO ZNQVEEAIQZEUHB-UHFFFAOYSA-N 0.000 description 1
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 description 1
- 241000219321 Caryophyllaceae Species 0.000 description 1
- 229920001747 Cellulose diacetate Polymers 0.000 description 1
- 229920002284 Cellulose triacetate Polymers 0.000 description 1
- 235000002845 Dianthus plumarius Nutrition 0.000 description 1
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- 239000005977 Ethylene Substances 0.000 description 1
- 239000004952 Polyamide Substances 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- XBDQKXXYIPTUBI-UHFFFAOYSA-M Propionate Chemical compound CCC([O-])=O XBDQKXXYIPTUBI-UHFFFAOYSA-M 0.000 description 1
- NNLVGZFZQQXQNW-ADJNRHBOSA-N [(2r,3r,4s,5r,6s)-4,5-diacetyloxy-3-[(2s,3r,4s,5r,6r)-3,4,5-triacetyloxy-6-(acetyloxymethyl)oxan-2-yl]oxy-6-[(2r,3r,4s,5r,6s)-4,5,6-triacetyloxy-2-(acetyloxymethyl)oxan-3-yl]oxyoxan-2-yl]methyl acetate Chemical compound O([C@@H]1O[C@@H]([C@H]([C@H](OC(C)=O)[C@H]1OC(C)=O)O[C@H]1[C@@H]([C@@H](OC(C)=O)[C@H](OC(C)=O)[C@@H](COC(C)=O)O1)OC(C)=O)COC(=O)C)[C@@H]1[C@@H](COC(C)=O)O[C@@H](OC(C)=O)[C@H](OC(C)=O)[C@H]1OC(C)=O NNLVGZFZQQXQNW-ADJNRHBOSA-N 0.000 description 1
- KXKVLQRXCPHEJC-UHFFFAOYSA-N acetic acid trimethyl ester Natural products COC(C)=O KXKVLQRXCPHEJC-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 239000001110 calcium chloride Substances 0.000 description 1
- 229910001628 calcium chloride Inorganic materials 0.000 description 1
- 159000000007 calcium salts Chemical class 0.000 description 1
- 229920002301 cellulose acetate Polymers 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- ZLNQQNXFFQJAID-UHFFFAOYSA-L magnesium carbonate Chemical compound [Mg+2].[O-]C([O-])=O ZLNQQNXFFQJAID-UHFFFAOYSA-L 0.000 description 1
- 239000001095 magnesium carbonate Substances 0.000 description 1
- 229910000021 magnesium carbonate Inorganic materials 0.000 description 1
- 235000014380 magnesium carbonate Nutrition 0.000 description 1
- 229910052943 magnesium sulfate Inorganic materials 0.000 description 1
- 235000019341 magnesium sulphate Nutrition 0.000 description 1
- 239000006259 organic additive Substances 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 239000004417 polycarbonate Substances 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920000139 polyethylene terephthalate Polymers 0.000 description 1
- 239000005020 polyethylene terephthalate Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 229920002689 polyvinyl acetate Polymers 0.000 description 1
- 239000011118 polyvinyl acetate Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 239000001103 potassium chloride Substances 0.000 description 1
- 235000011164 potassium chloride Nutrition 0.000 description 1
- 238000007761 roller coating Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Landscapes
- Application Of Or Painting With Fluid Materials (AREA)
- Coating Apparatus (AREA)
Abstract
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・感熱記録紙等記録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「ウェブ」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 Application Field] The present invention is applicable to photographic materials such as photographic film and photographic paper, photolithographic materials, magnetic recording materials such as magnetic recording tape, pressure-sensitive recording paper, and heat-sensitive recording paper. Regarding the improvement of the process of applying a liquid coating composition (hereinafter also referred to as coating liquid) to a continuously running long flexible support (hereinafter referred to as "web") in the production of recording materials, more specifically, the coating layer edge The present invention relates to a method and apparatus for processing the parts.
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、ウェ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、前記ウェ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 above-mentioned coating process, due to the action of the surface tension of the coating liquid, a thick coated film portion is generated at both edges in the width direction of the web.
Since this thick film portion causes uneven drying in the subsequent drying process, it is desirable to remove it before the drying process. U.S. Pat. No. 2,899,339 discloses that in such a process, nozzles are provided at both edges in the width direction of the web for absorbing the coating liquid, and the nozzles have an L-shaped double tube structure. Disclosed is a method and apparatus in which a spray or jet stream of diluent/solvent is supplied from the outer periphery and the coating liquid is sucked together with the diluent/solvent from the central part.
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。Furthermore, Japanese Patent Publication No. 52-38407 discloses a method in which the coating liquid at the edge of the coating layer is sucked only by a suction nozzle heated from the surroundings, and Japanese Patent Publication No. 56-73579 also discloses a method using a double-tube structure. A method for manufacturing a coated article has been proposed, which includes jetting a liquid from the center of a suction nozzle onto a thick coated film part, and sucking this liquid and the coating liquid in the thick coated film part together into the 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。Furthermore, in Japanese Utility Model Application Publication No. 60-49949, in a suction nozzle having a double pipe structure in which a cleaning liquid jet port and a suction port are provided at the tip, the jet port is located at a position off the axis of the double pipe. provided at an angle of 30 degrees to 85 degrees with the axis,
A suction nozzle is disclosed in which the suction port is provided at the central axis of the double pipe.
〔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５１−３８４０７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ａ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ェ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。[Problems to be Solved by the Invention] However, the method disclosed in the above-mentioned US Pat. The coating liquid is sucked up without reaching the tip, and the intended edge of the coating layer is not sufficiently treated. This causes clogging, and the method disclosed in JP-A-56-73579 has disadvantages in that the liquid ejected from the center of the suction nozzle flows around to the back side of the web, that is, the surface opposite to the coating, and stains the surrounding pass rollers.
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ェ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。Furthermore, the suction nozzle disclosed in Japanese Utility Model Application Publication No. 60-49949 can prevent inconveniences such as the ejected liquid from going around to the back side of the web or staining the surrounding pass rolls, and can reliably treat the edges of the coating layer. , the following new problems arose:
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ェブの裏側に洗浄液が廻り込ん
だり２周辺のパスロールを汚すといった不都合を生じ好
ましくない。In other words, when coating a thinner layer, the amount of thick coating at the edge of the coating layer decreases, which requires more pressure reduction and exhaust volume at the nozzle head than in the past. High pressure reduction and high displacement volume are difficult because of the large resistance at the parts. As a countermeasure to this, Japanese Patent Application Laid-open No. 56-73579
If the method disclosed in the publication is used, the cleaning liquid will directly hit the edge of the coating layer, which is the object to be sucked, and the edge of the coating layer will be disturbed, and as already mentioned, the cleaning liquid will get around to the back side of the web, and the surrounding area of 2. This is undesirable as it causes the inconvenience of staining 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 if the coating liquid is a water-soluble liquid, water must be used as the cleaning liquid, but if the cleaning liquid is only flowed from the center of the suction nozzle, it may cause the pipe to expand, especially in the middle of the pipe, or behind the valve. The temperature decreases due to adiabatic expansion at a portion where the pipe diameter is substantially increased, causing water to freeze and block the pipe, making it impossible to perform suction continuously. This was particularly a problem when applying thin layers.
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。Furthermore, in a method of cleaning the inside of a nozzle or pipe, if the cleaning liquid is a liquid at room temperature, 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Ｗ−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
引処理がウェ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Ｗ−塗り部を除去
する方法及び装置を提供することにある。It is an object of the present invention to solve the above-mentioned problems of the prior art, and in coating a thinner layer with a small amount of W coating, the suction treatment of the edge of the coating layer does not contaminate the web and pass roller.
Another object of the present invention is to provide a method and apparatus for reliably removing the W-coated portion without causing blockage of the suction pipe or blockage due to insufficient cleaning of the nozzle head.
［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）連続走行するウェブに液状塗布組成物を施した後
、ウェ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。[Means and effects for solving the problems] The above-mentioned objects of the present invention are as follows: (1) After applying a liquid coating composition to a continuously running web, it is possible to apply a thick coating to the thick coated film portions on both edges in the width direction of the web. A method for suctioning an edge of a coating layer by sucking a liquid coating composition, the method comprising sucking excess liquid coating composition using a suction nozzle and cleaning the inner wall of the suction nozzle with a heated cleaning liquid. A suction treatment method for the edges of the coating layer.
（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)-Claim (1) characterized in that the cleaning liquid contains an additive that lowers the freezing point of the liquid.
) The method for suction treatment of the edge of the coating layer.
（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 jet holes of the cleaning liquid jet pipe provided in the central axis of the double pipe are provided toward the inner wall of the suction nozzle from the tip of the jet pipe and the pipe wall. This is achieved by a suction nozzle characterized by:
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。In the present invention, the fact that the excess liquid coating composition is suctioned by the suction nozzle means that the suction treatment method for the edge of the coating layer of the present invention is mainly based on 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。In the present invention, cleaning the inner wall of the suction nozzle with a heated cleaning liquid means that the cleaning liquid is not jetted onto the edge of the coating layer, but the liquid coating composition sucked into the suction nozzle is applied to the inner wall of the suction nozzle. so that it does not stick to the
This means that by spraying toward the inner wall of the suction nozzle, the liquid coating composition that adheres to or attempts to adhere to the inner wall is dissolved and cleaned by the heated cleaning liquid.
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。Therefore, the suction nozzle has a double pipe structure, and a plurality of jet holes of the cleaning liquid jet pipe provided at the central axis of the double pipe are provided toward the inner wall of the suction nozzle from the tip of the jet pipe and the pipe wall. There is.
本発明において、加温された洗浄液とは、通常の場合３
５“Ｃ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 usually refers to 3
By heating the liquid coating composition to 5"C or higher, the liquid coating composition inside the suction pipe can be easily washed, and furthermore, the liquid after washing can be prevented from sticking and freezing inside 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 water when the liquid coating composition is water-soluble, and refers to a solvent capable of dissolving the composition when it is a solvent-based composition.
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。In the present invention, adding an additive that increases the freezing point of the cleaning liquid means that, for example, when water is used as the cleaning liquid to be supplied to the cleaning liquid jet pipe, in the exhaust piping 16 as shown in FIG. Freezing occurs after a few minutes. This freezing tends to occur in areas where the pipe diameter has expanded, and freezing cannot be suppressed even if the flow rate is increased.
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３
５℃以上に加温することの外に、洗浄水供給タンク２０
中にエチレンゲルコール、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重四％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（洗浄液が水を
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重四％くらい添加することをいう。This freezing is thought to be based on adiabatic expansion, but
In order to prevent this, the temperature of the supplied washing water should be adjusted to 3.
In addition to heating above 5℃, the cleaning water supply tank 20
Contains about 0.5 to 10% of organic additives that lower the freezing point, such as ethylene gelcol, diethylene glycol, ethylene glycol monoethyl ether, diethylene glycol monomethyl ether, methyl acetate, methanol, acetone, methyl ethyl ketone, or calcium chloride. , inorganic substances that lower the freezing point such as magnesium sulfate, potassium chloride, and magnesium carbonate (if the cleaning liquid is mainly water-based, the water-soluble salts, etc.) are added to 0.
It means to add about 4% of 05-5 weight.
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。The present invention will be explained in more detail below 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図においてウェブ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、ウェブの幅方向両
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、ウェブｌ、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である。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０．２〜３ ｍ ＜らい、より好ましくは
０．７〜１．５ｍぐらいがよい。また、噴出管７の先端
径は ３〜１０ｍｍ＜らい、より好ましくは４〜８ｆｆ
１１１りらいがよい。FIG. 1 is a partial cross-sectional side view of one embodiment of the suction nozzle of the present invention. In FIG. 1, a web 2 is a liquid coating composition 1.
The thick coating liquid coating composition in the coating thick film portions 3 on both edges in the width direction 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 jet hole 5n of the cleaning liquid jet pipe 7 provided at the central axis of the double pipe is configured to suck suction from the tip of the jet pipe 7 and the pipe wall as shown in FIG. A plurality of nozzles are provided toward the inner wall of the nozzle to prevent the cleaning liquid from directly hitting the web 1 and the thickly coated portion 3 coated with 2° of liquid coating composition. Although it depends on the structure of the nozzle, the angle θ of the hole at the tip is preferably 20° or more, preferably 30° or more with respect to the central axis of the jet pipe. The pore diameter is preferably about 0.2 to 3 m, more preferably about 0.7 to 1.5 m. Further, the tip diameter of the ejection pipe 7 is 3 to 10 mm, more preferably 4 to 8 ff.
111 is good.
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 suctioned from the suction nozzle tip 6, and the suctioned liquid coating composition is discharged from the suction tube 8 together with the cleaning liquid jetted from the cleaning liquid jetting tube 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 increase the exhaust capacity, the inner diameter of the suction nozzle should be gradually enlarged from the tip, or it should be enlarged in stages as shown in Figure 1, to reduce pressure loss as much as possible.
Such a structure is possible due to the type of the present invention in which cleaning liquid is supplied to the shaft core.
本発明に使用されるウェブとしては、紙、プラスチック
フィルム、金属、レジンコーテツド紙。The web used in the present invention includes paper, plastic film, metal, and resin coated paper.
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。またレジンコーチイツト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
ウェブとしては、例えばアルミニウムウェブがある。Includes synthetic paper, etc. Examples of materials for the plastic film include polyolefins such as polyethylene and polypropylene, polyvinyl acetate polymers, polyamides such as 6.6-nylon and 6-nylon, polyethylene terephthalate,
Polyesters such as polyethylene-2,6-naphthalate, polycarbonates, cellulose acetates such as cellulose triacetate, cellulose diacetate, etc. are used. Further, the resin used for resin coated paper is typically polyolefin such as polyethylene, but is not necessarily limited thereto. Further, as the metal web, for example, there is 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 are 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／ボの塗布量で
塗布速度５０ｍ／ｓｉｎで行った。Example 1 Using a roller coating system as shown in Figure 4 and a suction system at the edge of the coating layer as shown in Figure 3, the water-soluble liquid coating composition shown below was applied at a rate of 12cc/bottle. The amount of coating was applied at a coating speed of 50 m/sin.
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からピンクアップローラ１２が液状塗布組成
物をピンクアップブし、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. A pink-up roller 12 pinks up the liquid coating composition from a coating pan 14 containing one part of the liquid coating composition 13, and a blade 15 scrapes off the excess.
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ェブ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、ウェブ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】を
吸引ノズル４によって吸引する。The liquid coating composition 13 on the pick-up roller 12 is transferred to the coating roller 11 and further supported by the backup roller 10 and coated onto the continuously running web 2 . Before the applied liquid coating composition 1 is dried, a reversing pass roller 9 is used as a backup roller, and the thickly coated liquid coating composition in the thickly coated areas 3 on both edges in the width direction of the web 2 is sucked by a suction nozzle 4. do.
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図に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４ｉ′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。The structure of the suction nozzle 4 is as shown in FIGS. 1 and 2, and the tip 6 of the suction nozzle faces the thick coating area 3 at the edge of the coating layer, and is used for suction to suck out excess liquid coating composition 1. The pipe 8 is connected to an exhaust pipe 16 as shown in FIG. 3, and is exhausted by an exhaust pump 18 via an exhaust tank 17. The exhaust tank 17 has the role of separating the sucked air and the cleaning liquid together with the excess liquid 4i' coating composition.
排気ポンプ１８としては２ ｒｄ ／ ｗｉｎ Ｘ ５
０ ｃｌＨｇ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／ｓｉ
ｎの純水を送り、温度を５０°Ｃ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。Exhaust pump 18 is 2rd/win X 5
0 clHg was used. 50 to 500 cc/si of cleaning liquid is supplied to the cleaning liquid jet pipe 7 from the cleaning water supply tank 20.
n pure water is sent, the temperature is raised to 50°C, the cleaning liquid is supplied to the cleaning liquid jetting pipe 7 through the cleaning water supply piping 19, and a total of 6 pieces of pure water are sent from the tip of the cleaning liquid jetting pipe 7 and the pipe wall toward the inner wall of the suction nozzle. The inner wall of the suction nozzle was cleaned by ejecting it from the nozzle. Stable suction could be performed without freezing until 120 minutes after the start of suction.
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す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。Figure 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 when no suction nozzle is used and the case when a suction nozzle shown in Japanese Utility Model Application Publication No. 60-49949 is used. The coating amount was determined by 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 Figure 5, the thick coating rate with the conventional suction nozzle is approximately 5.
The nozzle of the present invention was able to reduce this from 0% to about 15%.
−ｂ
尚、厚塗り率％＝ Ｘ１００
但し、ａは厚塗り部の塗布量、ｂは平常部の塗布量であ
る。-b Thick coating rate % = X100 However, a is the coating amount in the thick coating area, and b is the coating amount in the normal area.
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
５１８ ｃｃ／ ｒｒｒ 、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、ＩＪｉ
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 rate of 518 cc/rrr and at a coating speed of 40 m, and the edge of the coating layer was suctioned with the same suction nozzle as in Example 1. Figure 5(b) shows the results of comparing the IJi without a nozzle and the conventional nozzle.
In the case of coating, good results similar to those of the previous Example-1 were obtained. In the case of thin layer coating, it has been shown that the thick coating rate increases to 75% using conventional nozzles.
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 solution is pure water and 5 ethylene glycol.
% mixed and used. Stable suction could be performed without freezing until 120 minutes after suction.
〔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
処理方法及び吸引ノズルにより、厚塗り量の少ないより
’ａｒＨの塗布層おいてもウェ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２品質の向
上に寄与することが出来た。[Effects of the Invention] As is clear from the above, with the suction treatment method and suction nozzle for the edge of the coating layer according to the present invention, the web and the pass roller can be prevented from contaminating the web and the pass roller even in the case of a thick coating layer with a small amount of coating. In addition, it is possible to reliably remove thick coated areas without clogging the suction piping or insufficient cleaning of the nozzle head, and it is also possible to reduce the thick coating rate, enabling high-speed coating and thin layer coating, and improving production. Improvement in performance 2 We were able to contribute to improvement in quality.
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）。
（ロ）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・・・ウェブ 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
ｌＯ・・・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
第 １
図
第 ４
第 ２
図FIG. 1 illustrates the suction treatment method for the edge of the coating layer of the present invention,
FIG. 2 is a partial enlarged view illustrating the jetting hole of the cleaning liquid jetting pipe of the present invention, and FIG. 3 is a piping system diagram of the suction processing device of the present invention. ,
FIG. 4 is a side view of one embodiment of a coating device implementing the present invention, and FIG. 5(a). (B) is a comparison chart of thick coating ratios of Examples of the present invention. 1...Liquid coating composition 2...Web 3...Thick coating portion 4...Suction nozzle 5n...Ejection hole 6 of the ejection tube...Suction nozzle tip 7...Washing liquid Ejection pipe 8...Suction pipe 9...Reversing pass roller lO...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...Washing water supply piping 20...Washing water supply tank Fig. 1 Fig. 4 Fig. 2
Claims (3)
、ウェ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 coating layer edge suction treatment method that applies a liquid coating composition to a continuously running web and then sucks the thickly coated liquid coating composition in the coated thick film portions at both edges in the width direction of the web, 1. A method for suction treatment of an edge of a coating layer, which comprises sucking an excess liquid coating composition using a suction nozzle, and cleaning the inner wall of the suction nozzle with a heated cleaning liquid.
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) Claim (1) characterized in that the cleaning liquid contains an additive that lowers the freezing point of the liquid.
The method for suction treatment of the edge of the coating layer described above.
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) It has a double pipe structure, and the cleaning liquid jet pipe provided at the center axis of the double pipe has a plurality of jet holes extending from the tip of the jet pipe and the pipe wall toward the inner wall of the suction nozzle. A suction nozzle featuring
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 true JPH0299166A (en) | 1990-04-11 |
| JPH0611422B2 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) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5536313A (en) * | 1993-09-06 | 1996-07-16 | Matsushita Electric Industrial Co., Ltd. | Intermittent coating apparatus |
| JP2007237039A (en) * | 2006-03-07 | 2007-09-20 | Fujifilm Corp | Suction method and apparatus for coating liquid |
| JP2013066851A (en) * | 2011-09-22 | 2013-04-18 | Fujifilm Corp | Coating apparatus and coating mehtod |
| JP5956053B2 (en) * | 2013-02-14 | 2016-07-20 | 株式会社島津製作所 | Surface chemical processing equipment 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 |
| JPS6049949U (en) * | 1983-09-12 | 1985-04-08 | 富士写真フイルム株式会社 | suction nozzle |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6049949B2 (en) * | 1980-11-08 | 1985-11-06 | 日本電気株式会社 | address history device |
-
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 |
| JPS6049949U (en) * | 1983-09-12 | 1985-04-08 | 富士写真フイルム株式会社 | suction nozzle |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5536313A (en) * | 1993-09-06 | 1996-07-16 | Matsushita Electric Industrial Co., Ltd. | Intermittent coating apparatus |
| JP2007237039A (en) * | 2006-03-07 | 2007-09-20 | Fujifilm Corp | Suction method and apparatus for coating liquid |
| JP2013066851A (en) * | 2011-09-22 | 2013-04-18 | Fujifilm Corp | Coating apparatus and coating mehtod |
| JP5956053B2 (en) * | 2013-02-14 | 2016-07-20 | 株式会社島津製作所 | Surface chemical processing equipment for fine patterning |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0611422B2 (en) | 1994-02-16 |
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