JPH07136578A - Simultaneous multilayer coating method - Google Patents
Simultaneous multilayer coating methodInfo
- Publication number
- JPH07136578A JPH07136578A JP30604393A JP30604393A JPH07136578A JP H07136578 A JPH07136578 A JP H07136578A JP 30604393 A JP30604393 A JP 30604393A JP 30604393 A JP30604393 A JP 30604393A JP H07136578 A JPH07136578 A JP H07136578A
- Authority
- JP
- Japan
- Prior art keywords
- coating liquid
- layer
- coating
- parts
- upper layer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、複数の同時に供給され
る塗工液を移動するウェブ上に積層状態で塗工する同時
多層塗工方法に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a simultaneous multi-layer coating method for coating a plurality of simultaneously supplied coating liquids on a moving web in a laminated state.
【０００２】[0002]
【従来の技術】従来、ウェブ上に多層塗膜を形成する方
法として、複数の狭いスリットから塗工液を押し出し、
傾斜面上を重力の作用により自然流下させ、重なり合っ
た塗工液を移動するウェブ上に転移させて多層塗膜を得
るようにしたいわゆるスライド塗工方式が知られてい
る。2. Description of the Related Art Conventionally, as a method for forming a multilayer coating film on a web, a coating liquid is extruded through a plurality of narrow slits,
There is known a so-called slide coating method in which an inclined surface is allowed to naturally flow down by the action of gravity, and overlapping coating solutions are transferred onto a moving web to obtain a multilayer coating film.
【０００３】[0003]
【発明が解決しようとする課題】上記のスライド塗工方
式においては、上層塗工液の表面張力が下層塗工液のそ
れよりも高いと多層塗工液が傾斜板上を流れる時点で界
面の乱れが発生する。また、上層塗工液の表面張力は下
層塗工液のそれよりも低いがその差が大きいときにも傾
斜板上にて多層塗工液の界面に乱れが発生する。したが
って、従来の写真感光材料での水系塗工液では上下層と
もに水系であるために、表面張力に着目する必要がなか
ったが、有機溶剤系では塗工液に表面張力差があるため
に、傾斜面上を流れる際に界面に乱れが発生し、同時多
層塗工は困難であった。In the slide coating method described above, when the surface tension of the upper layer coating liquid is higher than that of the lower layer coating liquid, the interface at the time when the multilayer coating liquid flows on the inclined plate. Disturbance occurs. The surface tension of the upper layer coating liquid is lower than that of the lower layer coating liquid, but when the difference is large, the interface of the multilayer coating liquid is disturbed on the inclined plate. Therefore, it is not necessary to pay attention to the surface tension because the upper and lower layers are water-based in the conventional coating liquid for the photographic light-sensitive material, but there is a difference in surface tension between the coating liquids in the organic solvent-based coating liquid. Disturbance occurred at the interface when flowing over the inclined surface, making simultaneous multilayer coating difficult.
【０００４】本発明は、上記のような問題点に鑑みてな
されたものであり、その目的とするところは、有機溶剤
系の塗工液を用いた場合に、界面を維持した多層塗膜が
形成できる同時多層塗工方法を提供することにある。The present invention has been made in view of the above problems, and an object thereof is to provide a multilayer coating film which maintains an interface when an organic solvent type coating liquid is used. It is to provide a simultaneous multi-layer coating method that can be formed.
【０００５】[0005]
【課題を解決するための手段】上記目的を達成するため
に、本発明の同時多層塗工方法は、傾斜板上で塗工液を
予め多層化しておき、その多層塗工液をウェブ上に転移
させて多層塗膜を形成する同時多層塗工方法において、
２種類の有機溶剤系塗工液を使用し、何れか一方の塗工
液に界面活性剤を添加して当該塗工液の表面張力を制御
することにより、傾斜板上における２層塗工液の界面を
維持させた状態にすることを特徴としている。そして、
従来水系で使用されている界面活性剤とは異なり、有機
溶剤の気−液界面への表面吸着により表面張力を低下さ
せる効果のあるフッ素系及びシリコン系界面活性剤を使
用するようにしたものである。In order to achieve the above object, the simultaneous multi-layer coating method of the present invention is a multi-layer coating solution preliminarily formed on an inclined plate, and the multi-layer coating solution is applied onto a web. In the simultaneous multilayer coating method of transferring to form a multilayer coating film,
A two-layer coating liquid on an inclined plate is prepared by using two kinds of organic solvent-based coating liquids and adding a surfactant to one of the coating liquids to control the surface tension of the coating liquid. The feature is that the interface of is maintained. And
Unlike the conventional surfactants used in water, fluorine and silicon surfactants that have the effect of lowering the surface tension due to surface adsorption of organic solvents on the gas-liquid interface are used. is there.
【０００６】[0006]
【作用】上層塗工液の表面張力が下層塗工液のそれより
も高い場合には、上層塗工液にフッ素系及びシリコン系
界面活性剤を添加して上層塗工液の表面張力を下層塗工
液のそれよりも低くすることにより傾斜板上における２
層塗工液の界面を維持した状態にすることができる。ま
た、上層塗工液の表面張力は下層塗工液のそれよりも低
いがその差が大きい場合には、下層塗工液にフッ素系及
びシリコン系界面活性剤を添加して下層塗工液の表面張
力を上層塗工液のそれに近づけることにより傾斜板上に
おける２層塗工液の界面を維持した状態にすることがで
きる。When the surface tension of the upper layer coating liquid is higher than that of the lower layer coating liquid, the surface tension of the upper layer coating liquid is adjusted by adding a fluorine-based or silicon-based surfactant to the upper layer coating liquid. 2 on the inclined plate by lowering it than that of the coating liquid
The interface of the layer coating liquid can be maintained. When the surface tension of the upper layer coating liquid is lower than that of the lower layer coating liquid, but the difference is large, a fluorine-based and silicon-based surfactant is added to the lower layer coating liquid to form a lower layer coating liquid. By bringing the surface tension close to that of the upper layer coating liquid, the interface of the two-layer coating liquid on the inclined plate can be maintained.
【０００７】[0007]
【実施例】以下、実施例とともに比較例を挙げて本発明
を詳細に説明する。なお、塗工液の表面張力測定には、
特開平５−２７３１０８号公報に示されるように、垂直
板法の液体試料を入れる容器に注液口を設け、この注液
口から試料液体を連続的に導入し、容器上端から試料液
体を溢れ出させて常に新しい表面を出現させて垂直板法
により表面張力を測定する方法を用いた。EXAMPLES The present invention will be described in detail below with reference to examples and comparative examples. In addition, for measuring the surface tension of the coating liquid,
As disclosed in JP-A-5-273108, a container for containing a liquid sample of the vertical plate method is provided with an injection port, the sample liquid is continuously introduced from this injection port, and the sample liquid overflows from the upper end of the container. A method of measuring the surface tension by the vertical plate method by letting it out and making a new surface always appear was used.
【０００８】（実施例１及び比較例１） 塗工液 上層Ａ：ＭＥＫ １００重量部 上層Ｂ：ＭＥＫ ９９．９重量部 Fluorad FC-431（３Ｍ製） ０．１重量部 下層 ：酢酸エチル １００重量部 表面張力 上層Ａ：２４．７ｄｙｎｅ／ｃｍ 上層Ｂ：２３．５〜２３．７ｄｙｎｅ／ｃｍ 下層 ：２４．０ｄｙｎｅ／ｃｍ 上記の塗工液を使用し、上層Ａと下層、上層Ｂと下
層という組合せにより以下の条件で傾斜面上を流した。 流量 上層：１００〜５００ｍｌ／ｍｉｎ 下層：１００〜５００ｍｌ／ｍｉｎ スライドダイ傾斜角 ２３度 スライドダイ巾 ２６０ｍｍ この結果、の系では傾斜面上で縦筋が見られ、安定で
綺麗な流れは得られなかったが、の系では安定で縦筋
のない綺麗な流れが得られた。(Example 1 and Comparative Example 1) Coating liquid Upper layer A: MEK 100 parts by weight Upper layer B: MEK 99.9 parts by weight Fluorad FC-431 (manufactured by 3M) 0.1 parts by weight Lower layer: ethyl acetate 100 parts by weight Part Surface tension Upper layer A: 24.7 dyne / cm Upper layer B: 23.5-23.7 dyne / cm Lower layer: 24.0 dyne / cm Combination of upper layer A and lower layer, upper layer B and lower layer using the above coating solution Was flowed on the inclined surface under the following conditions. Flow rate Upper layer: 100-500 ml / min Lower layer: 100-500 ml / min Sliding die inclination angle 23 degrees Sliding die width 260 mm As a result, in the system, vertical streaks were seen on the inclined surface, and stable and clean flow was not obtained. However, in the system, a stable and clean flow without vertical streaks was obtained.
【０００９】（実施例２及び比較例２） 塗工液 上層Ａ：ＢＲ−８０（三菱レーヨン製） ６．０重量部 トルエン ９４．０重量部 上層Ｂ：ＢＲ−８０（三菱レーヨン製） ６．０重量部 トルエン ９３．９重量部 Fluorad FC-431（３Ｍ製） ０．１重量部 上層Ｃ：ＢＲ−８０（三菱レーヨン製） １５．０重量部 トルエン ８５．０重量部 上層Ｄ：ＢＲ−８０（三菱レーヨン製） １５．０重量部 トルエン ８４．９重量部 Fluorad FC-431（３Ｍ製） ０．１重量部 下層Ａ：ＭＥＫ １００重量部 下層Ｂ：酢酸エチル １００重量部 下層Ｃ：アセトン １００重量部 表面張力 上層Ａ：２８．１〜２８．３ｄｙｎｅ／ｃｍ 上層Ｂ：２３．６〜２３．９ｄｙｎｅ／ｃｍ 上層Ｃ：２６．１〜２７．１ｄｙｎｅ／ｃｍ 上層Ｄ：２１．８〜２３．１ｄｙｎｅ／ｃｍ 下層Ａ：２４．７ｄｙｎｅ／ｃｍ 下層Ｂ：２４．０ｄｙｎｅ／ｃｍ 下層Ｃ：２４．０ｄｙｎｅ／ｃｍ 上記の塗工液を使用し、すべての上層と下層の組合せに
より前述したのと同じ条件で傾斜面上を流した。この結
果、上層Ｂ、上層Ｄを用いた系は、上層Ａ、上層Ｃを用
いた系よりも傾斜面上での流れが安定した。(Example 2 and Comparative Example 2) Coating liquid Upper layer A: BR-80 (manufactured by Mitsubishi Rayon) 6.0 parts by weight Toluene 94.0 parts by weight Upper layer B: BR-80 (manufactured by Mitsubishi Rayon) 6. 0 parts by weight toluene 93.9 parts by weight Fluorad FC-431 (manufactured by 3M) 0.1 parts by weight Upper layer C: BR-80 (manufactured by Mitsubishi Rayon) 15.0 parts by weight Toluene 85.0 parts by weight Upper layer D: BR-80 (Made by Mitsubishi Rayon) 15.0 parts by weight Toluene 84.9 parts by weight Fluorad FC-431 (made by 3M) 0.1 parts by weight Lower layer A: MEK 100 parts by weight Lower layer B: Ethyl acetate 100 parts by weight Lower layer C: Acetone 100 parts by weight Part Surface tension Upper layer A: 28.1 to 28.3 dyne / cm Upper layer B: 23.6 to 23.9 dyne / cm Upper layer C: 26.1 to 27.1 dyne / cm Upper layer D: 21.8 to 23.1 dyne / cm lower layer A: 24.7 dyne / cm Lower layer B: 24.0 dyne / cm Lower layer C: 24.0 dyne / cm Using the above coating liquid, combining all the upper and lower layers on the inclined surface under the same conditions as described above Shed. As a result, the system using the upper layers B and D had a more stable flow on the inclined surface than the system using the upper layers A and C.
【００１０】（実施例３及び比較例３） 塗工液 上層 ：ＢＲ−８７（三菱レーヨン製） １０．０重量部 トルエン ９０．０重量部 下層Ａ：アノン １００重量部 下層Ｂ：アノン ９９．９重量部 Fluorad FC-431（３Ｍ製） ０．１重量部 表面張力 上層 ：２８．４ｄｙｎｅ／ｃｍ 下層Ａ：３５．２ｄｙｎｅ／ｃｍ 下層Ｂ：３１．５〜３２．２ｄｙｎｅ／ｃｍ 上記の塗工液を使用し、上層と下層Ａ、上層と下層
Ｂという組合せにより前述したのと同じ条件で傾斜面上
を流した。この結果、の系はの系よりも傾斜面上で
の流れが安定した。(Example 3 and Comparative Example 3) Coating liquid Upper layer: BR-87 (manufactured by Mitsubishi Rayon) 10.0 parts by weight Toluene 90.0 parts by weight Lower layer A: Anon 100 parts by weight Lower layer B: Anon 99.9 Parts by weight Fluorad FC-431 (manufactured by 3M) 0.1 parts by weight Surface tension Upper layer: 28.4 dyne / cm Lower layer A: 35.2 dyne / cm Lower layer B: 31.5 to 32.2 dyne / cm The combination of the upper layer and the lower layer A and the combination of the upper layer and the lower layer B were used to flow on the inclined surface under the same conditions as described above. As a result, the flow of the system was more stable on the inclined surface than the system of.
【００１１】[0011]
【発明の効果】以上説明したように、本発明の同時多層
塗工方法によれば、上下層いずれかの有機溶剤系塗工液
に界面活性剤を添加して当該塗工液の表面張力を制御す
ることにより、傾斜板上における２層塗工液の界面を維
持した状態にすることができるので、塗工液に有機溶剤
系を使用して界面に乱れのない同時多層塗工を行うこと
が可能となる。したがって、今まで同時多層塗工が困難
であった有機溶剤を用いる系もスライド塗工方式により
容易に行えることとなり、種々の産業分野での応用が可
能となる。As described above, according to the simultaneous multi-layer coating method of the present invention, a surfactant is added to the organic solvent-based coating liquid of either upper or lower layer to reduce the surface tension of the coating liquid. By controlling it, it is possible to maintain the interface of the two-layer coating liquid on the inclined plate, so use an organic solvent system for the coating liquid to perform simultaneous multilayer coating without disturbance on the interface. Is possible. Therefore, a system using an organic solvent, which has been difficult to perform simultaneous multi-layer coating up to now, can be easily performed by the slide coating method, and it can be applied to various industrial fields.
Claims (2)
き、その多層塗工液をウェブ上に転移させて多層塗膜を
形成する同時多層塗工方法において、２種類の有機溶剤
系塗工液を使用し、何れか一方の塗工液に界面活性剤を
添加して当該塗工液の表面張力を制御することにより、
傾斜板上における２層塗工液の界面を維持させた状態に
することを特徴とする同時多層塗工方法。1. A simultaneous multi-layer coating method in which a multi-layer coating solution is preliminarily formed on an inclined plate and the multi-layer coating solution is transferred onto a web to form a multi-layer coating film. By using a coating liquid, by adding a surfactant to one of the coating liquid to control the surface tension of the coating liquid,
A simultaneous multilayer coating method, characterized in that the interface of the two-layer coating liquid on the inclined plate is maintained.
ン系界面活性剤を使用することを特徴とする請求項１記
載の同時多層塗工方法。2. The simultaneous multi-layer coating method according to claim 1, wherein fluorine-based and silicon-based surfactants are used as the surfactant.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP30604393A JPH07136578A (en) | 1993-11-12 | 1993-11-12 | Simultaneous multilayer coating method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP30604393A JPH07136578A (en) | 1993-11-12 | 1993-11-12 | Simultaneous multilayer coating method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH07136578A true JPH07136578A (en) | 1995-05-30 |
Family
ID=17952375
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP30604393A Pending JPH07136578A (en) | 1993-11-12 | 1993-11-12 | Simultaneous multilayer coating method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH07136578A (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000345105A (en) * | 1999-06-07 | 2000-12-12 | Nippon Steel Corp | Coating material for curtain coater having curtain stability and production process for coated product by means of the curtain coater |
| JP2003062517A (en) * | 2001-08-28 | 2003-03-04 | Dainippon Printing Co Ltd | Multilayer coating method |
| WO2004055558A1 (en) * | 2002-12-16 | 2004-07-01 | Fuji Photo Film Co., Ltd. | Optical compensating sheet, production method thereof, optical film, and polarizing plate and liquid crystal display device using the same |
| EP1820639A1 (en) * | 2004-12-08 | 2007-08-22 | Nippon Steel Corporation | Precoated metal plate and process for producing precoated metal plate |
| CN100456058C (en) * | 2002-12-16 | 2009-01-28 | 富士胶片株式会社 | Optical compensating sheet, production method thereof, optical film, and polarizing plate and liquid crystal display device using the same |
| JP2010110751A (en) * | 2008-10-06 | 2010-05-20 | Dainippon Printing Co Ltd | Method of producing multilayered coating film |
| CN101713911A (en) * | 2008-10-06 | 2010-05-26 | 大日本印刷株式会社 | Method of producing multilayer coating film |
| JP2011206708A (en) * | 2010-03-30 | 2011-10-20 | Dainippon Printing Co Ltd | Method of producing multilayer coating film and multilayer coating film |
| JP2013244474A (en) * | 2012-05-28 | 2013-12-09 | Dainippon Printing Co Ltd | Method for manufacturing laminate |
-
1993
- 1993-11-12 JP JP30604393A patent/JPH07136578A/en active Pending
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000345105A (en) * | 1999-06-07 | 2000-12-12 | Nippon Steel Corp | Coating material for curtain coater having curtain stability and production process for coated product by means of the curtain coater |
| JP2003062517A (en) * | 2001-08-28 | 2003-03-04 | Dainippon Printing Co Ltd | Multilayer coating method |
| KR101023005B1 (en) * | 2002-12-16 | 2011-03-22 | 후지필름 가부시키가이샤 | Optical compensating sheet, production method thereof, optical film, and polarizing plate and liquid crystal display device using the same |
| US7462382B2 (en) | 2002-12-16 | 2008-12-09 | Fujifilm Corporation | Optical compensating sheet, production method thereof, optical film, and polarizing plate and liquid crystal display device using the same |
| CN100456058C (en) * | 2002-12-16 | 2009-01-28 | 富士胶片株式会社 | Optical compensating sheet, production method thereof, optical film, and polarizing plate and liquid crystal display device using the same |
| WO2004055558A1 (en) * | 2002-12-16 | 2004-07-01 | Fuji Photo Film Co., Ltd. | Optical compensating sheet, production method thereof, optical film, and polarizing plate and liquid crystal display device using the same |
| EP1820639A1 (en) * | 2004-12-08 | 2007-08-22 | Nippon Steel Corporation | Precoated metal plate and process for producing precoated metal plate |
| JPWO2006062214A1 (en) * | 2004-12-08 | 2008-06-12 | 新日本製鐵株式会社 | Pre-coated metal plate and method for producing pre-coated metal plate |
| EP1820639A4 (en) * | 2004-12-08 | 2011-04-06 | Nippon Steel Corp | Precoated metal plate and process for producing precoated metal plate |
| US8968881B2 (en) | 2004-12-08 | 2015-03-03 | Nippon Steel & Sumitomo Metal Corporation | Precoated metal sheet and method of production of precoated metal sheet |
| JP2010110751A (en) * | 2008-10-06 | 2010-05-20 | Dainippon Printing Co Ltd | Method of producing multilayered coating film |
| CN101713911A (en) * | 2008-10-06 | 2010-05-26 | 大日本印刷株式会社 | Method of producing multilayer coating film |
| JP2011206708A (en) * | 2010-03-30 | 2011-10-20 | Dainippon Printing Co Ltd | Method of producing multilayer coating film and multilayer coating film |
| JP2013244474A (en) * | 2012-05-28 | 2013-12-09 | Dainippon Printing Co Ltd | Method for manufacturing laminate |
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