JP2000325858A - Coating method and device therefor - Google Patents
Coating method and device thereforInfo
- Publication number
- JP2000325858A JP2000325858A JP11143377A JP14337799A JP2000325858A JP 2000325858 A JP2000325858 A JP 2000325858A JP 11143377 A JP11143377 A JP 11143377A JP 14337799 A JP14337799 A JP 14337799A JP 2000325858 A JP2000325858 A JP 2000325858A
- Authority
- JP
- Japan
- Prior art keywords
- coating
- liquid
- head
- coating liquid
- slit
- 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
- 238000000576 coating method Methods 0.000 title claims abstract description 110
- 239000007788 liquid Substances 0.000 claims abstract description 119
- 239000011248 coating agent Substances 0.000 claims abstract description 98
- 238000003756 stirring Methods 0.000 claims abstract description 25
- 238000010298 pulverizing process Methods 0.000 claims abstract description 14
- 239000011148 porous material Substances 0.000 claims abstract description 9
- 238000000034 method Methods 0.000 claims description 10
- 238000007599 discharging Methods 0.000 claims description 8
- 238000004220 aggregation Methods 0.000 claims description 7
- 230000002776 aggregation Effects 0.000 claims description 7
- 230000007246 mechanism Effects 0.000 claims description 6
- 238000004062 sedimentation Methods 0.000 claims description 6
- 230000015271 coagulation Effects 0.000 abstract description 8
- 238000005345 coagulation Methods 0.000 abstract description 8
- 239000000463 material Substances 0.000 abstract description 4
- 101700004678 SLIT3 Proteins 0.000 abstract description 3
- 102100027339 Slit homolog 3 protein Human genes 0.000 abstract description 3
- 230000009471 action Effects 0.000 abstract description 2
- 239000011247 coating layer Substances 0.000 abstract description 2
- 238000000151 deposition Methods 0.000 abstract 3
- 230000008021 deposition Effects 0.000 abstract 3
- 238000005189 flocculation Methods 0.000 abstract 3
- 230000016615 flocculation Effects 0.000 abstract 3
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 6
- 229920005989 resin Polymers 0.000 description 4
- 239000011347 resin Substances 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000000049 pigment Substances 0.000 description 2
- 229920002037 poly(vinyl butyral) polymer Polymers 0.000 description 2
- 230000008023 solidification Effects 0.000 description 2
- 238000007711 solidification Methods 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 230000009974 thixotropic effect Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- OWNRRUFOJXFKCU-UHFFFAOYSA-N Bromadiolone Chemical compound C=1C=C(C=2C=CC(Br)=CC=2)C=CC=1C(O)CC(C=1C(OC2=CC=CC=C2C=1O)=O)C1=CC=CC=C1 OWNRRUFOJXFKCU-UHFFFAOYSA-N 0.000 description 1
- 102100033040 Carbonic anhydrase 12 Human genes 0.000 description 1
- 101000867855 Homo sapiens Carbonic anhydrase 12 Proteins 0.000 description 1
- 241000269978 Pleuronectiformes Species 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 238000013019 agitation Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920006267 polyester film Polymers 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 230000003134 recirculating effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000006228 supernatant Substances 0.000 description 1
- 239000000454 talc Substances 0.000 description 1
- 229910052623 talc Inorganic materials 0.000 description 1
Landscapes
- Coating Apparatus (AREA)
- Details Or Accessories Of Spraying Plant Or Apparatus (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明はフィルム、紙、金属
薄板などの支持体上に不安定な液を連続的に塗布する方
法及びその装置に係る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and an apparatus for continuously applying an unstable liquid onto a support such as a film, paper or a thin metal plate.
【０００２】[0002]
【従来の技術】いままでフィルム、紙、金属薄板などの
可撓性支持体に塗布液を塗布するための数多くの塗布方
式が知られてきた（例えば、原崎勇次 著「コーティン
グ方式」槙書店発行、参照）。アプリケーション系で分
類すると、ロールで液を汲み上げるロールアプリケー
タ（グラビア方式も含む）、液溜めの液に直接支持体
が接する液溜めアプリケータ、支持体がどっぷり液に
浸かる浸漬アプリケータ、スリットから液が出てくる
スロット、ファウンテン又はカーテンアプリケータ、
これらの複合型、などがよく知られている。2. Description of the Related Art There have been known a number of coating methods for applying a coating solution to a flexible support such as a film, paper, or a metal sheet (for example, Yuji Harazaki, "Coating Method", published by Maki Shoten) ,reference). When classified by application system, a roll applicator (including a gravure method) that pumps the liquid with a roll, a liquid reservoir applicator in which the support is in direct contact with the liquid in the liquid reservoir, an immersion applicator in which the substrate is completely immersed in the liquid, and a liquid that passes through the slit Comes out of the slot, fountain or curtain applicator,
These composite types are well known.
【０００３】これらの方式のうち、スリット等の細孔か
ら液が吐出して支持体上に付着することを特徴とするス
ロット、ファウンテン、ダイ又はこれらの複合型ヘッド
では、液が一時的に滞留して流動速度がその前後より遅
くなる液の溜りがあったり、液がスリット部を流動して
いてもその形状から層流状の流れになることが多かっ
た。いままでのように、液が比較的安定性が高く、液成
分の沈降、凝固、凝集などが少ない場合は、この溜り、
層流部分、及びそれ以降の支持体に付着するまでの過程
で、それらのトラブルが発生することは少なかった。Among these methods, in a slot, a fountain, a die, or a composite type head of these which is characterized in that a liquid is discharged from a pore such as a slit and adheres to a support, the liquid temporarily stays. As a result, there are many cases where the flow velocity is slower than before and after that, and even when the liquid flows through the slit portion, the flow becomes laminar due to its shape. If the liquid has relatively high stability and the sedimentation, coagulation, aggregation, etc. of the liquid components are small, the pool is
In the process of laminar flow and subsequent adhesion to the support, such troubles rarely occurred.
【０００４】また、最近ではチキソトロピックな特性を
有する液をエクストルージョン型塗布ヘッドを用いて塗
布するに当たり、その液溜め内で回転円筒体を回転させ
たり（特公平６−７９４４号公報）、液溜め内に設けら
れた固定型攪拌手段によって液自身の運動エネルギーで
液の流れが変化しながら移動するエクストルージョン型
塗布ヘッドが知られている（特開平１−２６６８７６号
公報）。これらの手段はチキソトロピックな特性を有す
る液、即ち液の滞留によりその粘弾性は変化するが、そ
の部分における液成分変化は比較的少ない液の塗布には
有効であった。Recently, when a liquid having thixotropic properties is applied using an extrusion type coating head, a rotating cylinder is rotated in the liquid reservoir (Japanese Patent Publication No. 6-7944), There is known an extrusion type coating head in which the flow of the liquid changes while the flow of the liquid changes by the kinetic energy of the liquid itself by a fixed stirring means provided in the reservoir (Japanese Patent Application Laid-Open No. Hei 1-266876). These means are effective for applying a liquid having thixotropic properties, that is, the viscoelasticity of the liquid changes due to stagnation of the liquid, but the liquid component changes in that portion are relatively small.
【０００５】しかし、最近のように多種、高度な機能の
製品に対する要求が増大すると、それらを満足させるた
めに沈降、凝固、凝集などの発生し易い不安定な液、即
ち滞留によりその粘弾性が変化するばかりでなく、固形
化など急激な液成分変化（液成分の部分的偏り）をも生
じる液を塗布する必要がでてきた。これらの不安定な液
は、液が塗布される紙、フィルム等の支持体に接した
後、余分な液が除去され再循環されるいわゆる後計量方
式では、液が空気等に比較的長時間触れるため、成分及
び特性の変化が大きく、塗布に不適当であった。よっ
て、空気に触れる部分が少なく、液再循環のない、液が
細孔（スロット）から吐出するヘッドが適当である。[0005] However, as the demand for a variety of products with high functions has increased recently, in order to satisfy them, an unstable liquid which is liable to cause sedimentation, coagulation, coagulation, etc. It has become necessary to apply a liquid that not only changes, but also causes a sudden change in the liquid component (partial deviation of the liquid component) such as solidification. In the so-called post-metering system, in which these unstable liquids come into contact with a substrate such as paper or film to which the liquid is applied, excess liquid is removed and recirculated, the liquid is exposed to air or the like for a relatively long time. Because of the touch, the components and properties changed greatly and were unsuitable for coating. Therefore, it is appropriate to use a head in which the liquid is discharged from the pores (slots), which has a small portion in contact with the air and has no liquid recirculation.
【０００６】これらの液は公知の「液溜め内で回転円筒
体を回転させ」たり、「液溜め内に設けられた固定型攪
拌手段によって液自身の運動エネルギで液の流れが変化
し」たり、「液溜め内に塗布量以上の液を供給し、余分
な液をバイパスにより再循環させ」る程度の攪拌では、
到底その沈降、凝固、凝集などの発生を防ぐことはでき
ず、塗布面の塗布むら、スジ、平滑度不良などのミク
ロ、マクロ的な不均一の発生を防ぐことはできなかっ
た。For these liquids, there are known methods such as "rotating a rotating cylindrical body in a liquid reservoir", and "the flow of the liquid is changed by the kinetic energy of the liquid itself by a fixed stirring means provided in the liquid reservoir". , With agitation of such a degree that "supply liquid more than the application amount into the liquid reservoir and recirculate excess liquid by bypass"
It was impossible to prevent the occurrence of sedimentation, solidification, aggregation and the like at all, and it was not possible to prevent the occurrence of micro and macro non-uniformities such as uneven coating, streaks, and poor smoothness on the coated surface.
【０００７】[0007]
【発明が解決しようとする課題】本発明は上記実態に鑑
みてなされたものであり、沈降、凝固、凝集などの発生
し易い不安定な液を不具合なく塗布する方法及びその装
置を提供することを、その課題とする。SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and provides a method and an apparatus for applying an unstable liquid which is liable to cause sedimentation, coagulation, aggregation, etc. without problems. Is the subject.
【０００８】[0008]
【課題を解決するための手段】本発明によれば、第一
に、塗布液が細孔から吐出する機構を有する塗布ヘッド
を用いる塗布方法において、該ヘッドに塗布液を送るポ
ンプと該ヘッドとの間にある該ヘッドに流入する直前の
塗布液を強制的に攪拌、粉砕することを特徴とする塗布
方法が提供される。According to the present invention, first, in a coating method using a coating head having a mechanism for discharging a coating liquid from pores, a pump for feeding the coating liquid to the head, Wherein the coating liquid immediately before flowing into the head is forcibly stirred and pulverized.
【０００９】第二に、前記攪拌、粉砕を、回転スリット
板中のスリットに塗布液を一端から供給通過させた後、
他端から排出通過させることによって実施することを特
徴とする上記第一に記載した塗布方法が提供される。Second, the stirring and pulverization are performed after the coating liquid is supplied from one end to a slit in the rotary slit plate and passed therethrough.
The application method according to the first aspect, wherein the application method is carried out by discharging and passing from the other end.
【００１０】第三に、前記塗布ヘッドにおいて、ダイヘ
ッド内で回転部材により塗布液の沈降、凝集を防止する
ことを特徴とする上記第一又は第二に記載した塗布方法
が提供される。Thirdly, there is provided the coating method according to the first or second aspect, wherein in the coating head, sedimentation and aggregation of the coating liquid are prevented by a rotating member in the die head.
【００１１】また、本発明によれば、第四に、塗布液が
細孔から吐出する機構を有する塗布ヘッドを備えた塗布
装置において、該ヘッドに塗布液を送るポンプと該ヘッ
ドとの間にある該ヘッドに流入する直前の塗布液を強制
的に攪拌、粉砕する装置を有することを特徴とする塗布
装置が提供される。According to the present invention, fourthly, in a coating apparatus provided with a coating head having a mechanism for discharging a coating liquid from pores, a pump for feeding the coating liquid to the head and the head are provided. There is provided a coating apparatus characterized by having a device for forcibly stirring and pulverizing a coating liquid immediately before flowing into a certain head.
【００１２】第五に、前記攪拌、粉砕する装置が、液溜
め部の端部に設けられた回転スリット板中のスリットを
塗布液が通過する供給系と、液溜め部からの塗布液が同
スリット板中のスリットを通過する排出系からなる構成
のものであることを特徴とする上記第四に記載した塗布
装置が提供される。Fifth, the stirring and pulverizing device is configured such that a supply system through which a coating liquid passes through a slit in a rotary slit plate provided at an end of the liquid reservoir and a coating liquid from the liquid reservoir are the same. The coating apparatus according to the fourth aspect, characterized in that the coating apparatus has a configuration including a discharge system that passes through a slit in the slit plate.
【００１３】第六に、前記塗布ヘッドにおいて、ダイヘ
ッド内に回転部材を有することを特徴とする上記第四又
は第五に記載した塗布装置が提供される。Sixth, there is provided the coating apparatus according to the fourth or fifth aspect, wherein the coating head has a rotating member in a die head.
【００１４】[0014]
【発明の実施の形態】以下、本発明を更に詳細に説明す
る。本発明の塗布方法は、塗布液が細孔から吐出する機
構を有する塗布ヘッドを用いる塗布方法において、該ヘ
ッドに流入する直前の塗布液を強制的に攪拌、粉砕する
ことを特徴とし、また本発明の塗布装置は、塗布液が細
孔から吐出する機構を有する塗布ヘッドを備えた塗布装
置において、該ヘッドに流入する直前の塗布液を強制的
に攪拌、粉砕する装置を有することを特徴とする。BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, the present invention will be described in more detail. The coating method of the present invention is a coating method using a coating head having a mechanism for discharging a coating liquid from pores, wherein the coating liquid immediately before flowing into the head is forcibly stirred and pulverized. The coating apparatus of the present invention is characterized in that, in a coating apparatus having a coating head having a mechanism for discharging a coating liquid from pores, a device for forcibly stirring and pulverizing a coating liquid immediately before flowing into the head is provided. I do.
【００１５】本発明における「塗布ヘッドに流入する直
前の塗布液」とは、「液を送るポンプと、塗布ヘッドと
の間にある塗布液」を指す。直前の塗布液である理由
は、当然ながら均一化された塗布液が支持体に塗布され
るまでの時間を短くするためである。また、「強制的に
攪拌、粉砕」とは、単に塗布液中の円筒の回転によるも
の、液溜め内に設けられた固定型攪拌手段によって液自
身の運動エネルギーで液の流れが変化するもの、液溜め
内に塗布量以上の液を供給し、余分な液をバイパスによ
り再循環させるもの、等の手段を利用した攪拌、粉砕は
含まない。塗布液を塗布ヘッドに流入する直前の場所で
攪拌装置や、粉砕装置を用いて、強制的に攪拌、粉砕す
ることを意味する。The "coating liquid immediately before flowing into the coating head" in the present invention refers to "a coating liquid between the pump for feeding the liquid and the coating head". The reason for using the immediately preceding coating solution is to shorten the time until the uniformized coating solution is applied to the support. Further, `` forced stirring, pulverization '' is simply due to the rotation of the cylinder in the coating liquid, the liquid flow changes by the kinetic energy of the liquid itself by the fixed stirring means provided in the liquid reservoir, Stirring and pulverization using means such as supplying a liquid in an amount equal to or more than the application amount into the liquid reservoir and recirculating an excess liquid by a bypass are not included. This means that the coating liquid is forcibly stirred and pulverized using a stirring device or a pulverizing device immediately before flowing into the coating head.
【００１６】これらの装置としては、一般に知られたも
の、例えば回転軸に一個又は複数の羽、スクリュ、突起
などを取り付けたものを回転させるもの、回転軸にスパ
イラル状の連続体を設けたものを回転させるもの、板状
の物体を前後、上下又は左右（塗布の巾方向）に振動さ
せるもの等、塗布液を攪拌、粉砕する駆動体を備えた装
置がある。These devices are generally known, for example, a device for rotating a device having one or more blades, screws, projections, etc. attached to a rotary shaft, a device having a spiral continuous body provided on a rotary shaft. There is a device provided with a driving body for stirring and pulverizing a coating liquid, such as a device for rotating a plate-shaped object, a device for vibrating a plate-like object back and forth, up and down or left and right (in a width direction of coating).
【００１７】最も有効なのは、図１−（ａ）、図１−
（ｂ）に示されるような粉砕機である。図１−（ａ）は
スリット板の平面図であり、図１−（ｂ）は粉砕機の模
式断面図である。図１−（ａ）、図１−（ｂ）におい
て、１は粉砕機、２はスリット板、３はスリット、４は
塗布液溜め、５は軸受け、６はシャフトａ、７はシャフ
トｂ、８はカップリング、９はエアー攪拌機を、夫々示
す。The most effective ones are shown in FIGS.
A crusher as shown in (b). FIG. 1A is a plan view of a slit plate, and FIG. 1B is a schematic sectional view of a crusher. 1 (a) and 1 (b), 1 is a crusher, 2 is a slit plate, 3 is a slit, 4 is a coating liquid reservoir, 5 is a bearing, 6 is a shaft a, 7 is a shaft b, 8 Indicates a coupling, and 9 indicates an air stirrer.
【００１８】図１−（ｂ）のＩＮ側から塗布液が入り、
回転しているスリット板２のスリット３を通過するとき
に凝集物などを粉砕し、更に塗布液が戻るときもスリッ
ト３を通過して粉砕作用を受ける。なお、この粉砕機に
おいては、塗布液に有機溶剤を使用しているので、電気
式のモータは使わず、エアー攪拌機９により圧縮空気で
シャフトｂ７が回転される。スリット板２の回転数、液
流量などは液の性状により変化するが、例えば液粘度が
５０〜３００ミリパスカル・秒、スリット板２の直径が
１００ｍｍのとき、回転数５００〜２０００ｒｐｍ、液
流量０．１〜１ｌ/ｍｉｎである。The coating liquid enters from the IN side in FIG.
Agglomerates and the like are crushed when passing through the slit 3 of the rotating slit plate 2, and when the coating liquid returns, the crushing action is also performed by passing through the slit 3. In this pulverizer, since an organic solvent is used for the coating liquid, the shaft b7 is rotated by compressed air by the air agitator 9 without using an electric motor. The rotation speed and liquid flow rate of the slit plate 2 vary depending on the properties of the liquid. For example, when the liquid viscosity is 50 to 300 millipascal-second and the diameter of the slit plate 2 is 100 mm, the rotation speed is 500 to 2000 rpm and the liquid flow rate is 0. 0.1 to 1 l / min.
【００１９】本発明が適用されるに適した塗布液は不安
定であるものがより有効であるのは勿論であるが、安定
な塗布液に応用しても差し支えない。特に有効なのは静
置しておくと３０分以内に上澄みが現れたり、上部と下
部で色調が異なったり、凝集、分離が始まったりするよ
うな不安定な塗布液である。これらの液は目視で確認さ
れるよりずっと以前に変化が始まっており、公知の塗布
方法では安定した塗布は不可能である。The coating liquid suitable for applying the present invention is, of course, more effective if it is unstable, but may be applied to a stable coating liquid. Particularly effective is an unstable coating solution in which a supernatant appears within 30 minutes when left to stand, the color tone differs between the upper portion and the lower portion, or aggregation or separation starts. These liquids have begun to change long before they are visually observed, and stable application is not possible with known application methods.
【００２０】支持体としては、ポリエステル等のフイル
ムが特に塗布むらが現れ易く、本発明の効果が大きい。
これは一般に紙などと比較してフイルムは液の浸透が小
さく、液のセットまでの時間が長いためと推定される。
例えば、特開平１０−２４６６７号公報に記されている
ような、樹脂の良溶媒と貧溶媒の混合物に該樹脂が分
散、溶解された不安定な塗布液をフィルムに塗布する場
合、本発明は有効に適用される。また、不安定なエマル
ションにも本発明は有効に適用される。塗布液に顔料な
どの添加物が混入された場合に特に有効である。As the support, a film of polyester or the like is particularly likely to cause uneven coating, and the effect of the present invention is great.
This is presumed to be because the film is generally less penetrated by liquid than paper and the like, and the time until the liquid is set is longer.
For example, as described in JP-A-10-24667, when the resin is dispersed and dissolved in a mixture of a good solvent and a poor solvent for the resin, and an unstable coating solution in which the resin is dissolved is applied to a film, Effectively applied. Further, the present invention is effectively applied to an unstable emulsion. This is particularly effective when additives such as pigments are mixed in the coating liquid.
【００２１】[0021]
【実施例】次に、実施例、比較例を挙げて本発明を具体
的に説明する。ここで用いた塗布液は、 ブチラール樹脂 ７重量部 メタノール ７０重量部 水 ６重量部 タルク ３重量部 なる処方であり、この液を厚さ３μｍの透明なポリエス
テルフィルムに塗布する。塗布液のブチラール樹脂はメ
タノールに可溶であるが水に不溶であり、液は一部の樹
脂が析出した不安定なものである。Next, the present invention will be specifically described with reference to examples and comparative examples. The coating liquid used here has a formulation of 7 parts by weight of butyral resin, 70 parts by weight of methanol, 6 parts by weight of water, and 3 parts by weight of talc. This liquid is applied to a transparent polyester film having a thickness of 3 μm. The butyral resin in the coating liquid is soluble in methanol but insoluble in water, and the liquid is an unstable liquid in which a part of the resin is precipitated.
【００２２】［比較例１］上記塗布液を図３に示すダイ
ヘッドを備えた塗布装置を用いて塗布したところ、巾方
向に数本の塗布ムラスジが発生し、また乾燥後表面には
顔料の粒子が認められた。図３は従来法による塗布装置
の概略説明図であり、１１は攪拌タンク、１２は攪拌
翼、１３は攪拌軸、１４は送液ポンプ、１５はダイヘッ
ドを、夫々示す。[Comparative Example 1] When the above coating solution was applied using a coating apparatus equipped with a die head shown in FIG. 3, several coating muraji were generated in the width direction, and pigment particles were formed on the surface after drying. Was observed. FIG. 3 is a schematic explanatory view of a coating apparatus according to a conventional method, in which 11 denotes a stirring tank, 12 denotes a stirring blade, 13 denotes a stirring shaft, 14 denotes a liquid feed pump, and 15 denotes a die head.
【００２３】［実施例１］次に、図２に示されるよう
に、送液ポンプ１４とダイヘッド１５（なお、ダイヘッ
ド内に丸材シャフトからなる回転部材１６が取付けられ
ている）との間に図１に示される構造の粉砕機１を設置
した装置を用いて、前記塗布液を塗布したところ、比較
例１で生じたトラブルは発生せず、均一な塗布物が得ら
れた。[Embodiment 1] Next, as shown in FIG. 2, a drawing is made between a liquid feed pump 14 and a die head 15 (a rotary member 16 made of a round material shaft is mounted in the die head). When the coating solution was applied using a device provided with a crusher 1 having the structure shown in FIG. 1, the trouble occurred in Comparative Example 1 did not occur, and a uniform applied material was obtained.
【００２４】なお、図２は本発明の塗布装置の概略説明
図であり、１は粉砕機、１１は攪拌タンク、１２は攪拌
翼、１３は攪拌軸、１４は送液ポンプ、１５はダイヘッ
ド、１６はダイヘッド内の回転部材、を夫々示す。図２
において、ダイヘッド１５内に塗布液が沈降、凝固、凝
集しないように回転部材１６を取付けてあり、ダイヘッ
ド内１５で極端に高速回転させるとダイ内で液が乱れ、
塗布面にムラを生じる危険性があるが、本発明ではダイ
ヘッド１５の直前に粉砕機１が設けられているので、ダ
イヘッド１５内で極端な高速回転を行なう必要はなく、
従って塗布面の乱れ等は発生しない。この回転部材１６
としては、一般に丸材シャフトが用いられるが、もちろ
んローレット目（ヒラメ、アヤメ）のシャフトを用いる
こともできる。但し、後者を使用した場合は攪拌力が向
上するので、回転数をおとす必要がある。FIG. 2 is a schematic explanatory view of the coating apparatus of the present invention, wherein 1 is a crusher, 11 is a stirring tank, 12 is a stirring blade, 13 is a stirring shaft, 14 is a liquid feed pump, 15 is a die head, Reference numeral 16 denotes a rotating member in the die head. FIG.
In, a rotating member 16 is attached so that the coating liquid does not settle, solidify, or coagulate in the die head 15, and when the coating liquid is rotated at an extremely high speed in the die head 15, the liquid is disturbed in the die,
Although there is a risk of causing unevenness on the coating surface, in the present invention, since the pulverizer 1 is provided immediately before the die head 15, it is not necessary to perform extremely high-speed rotation in the die head 15,
Therefore, no disturbance of the coating surface occurs. This rotating member 16
Generally, a round material shaft is used, but of course, a knurled (flatfish, iris) shaft can also be used. However, when the latter is used, the stirring power is improved, so it is necessary to reduce the rotation speed.
【００２５】[0025]
【発明の効果】本発明の塗布方法及び塗布装置によれ
ば、塗布ヘッドに流入する直前の液を強制的に攪拌、粉
砕させて液を均一化し、その後塗布するものとしたこと
から、沈降、凝固、凝集などの発生し易い不安定な液を
不具合なく塗布し、良好な塗布層を得ることができ、特
に不安定な液の塗布に極めて有効である。According to the coating method and the coating apparatus of the present invention, the liquid immediately before flowing into the coating head is forcibly agitated and pulverized to make the liquid uniform, and then the liquid is applied. It is possible to apply an unstable liquid which is liable to cause coagulation and aggregation, without any trouble, to obtain a good coating layer, and it is extremely effective particularly for applying an unstable liquid.
【図１】（ａ）は本発明で使用される粉砕機のスリット
板の平面図であり、（ｂ）は本発明で使用される粉砕機
の模式断面図である。FIG. 1A is a plan view of a slit plate of a crusher used in the present invention, and FIG. 1B is a schematic sectional view of a crusher used in the present invention.
【図２】本発明の塗布装置の概略説明図である。FIG. 2 is a schematic explanatory view of a coating apparatus of the present invention.
【図３】従来法による塗布装置の概略説明図である。FIG. 3 is a schematic explanatory view of a coating apparatus according to a conventional method.
１ 粉砕機 ２ スリット板 ３ スリット ４ 塗布液溜め ５ 軸受け ６ シャフトａ ７ シャフトｂ ８ カップリング ９ エアー攪拌機 １１ 攪拌タンク １２ 攪拌翼 １３ 攪拌軸 １４ 送液ポンプ １５ ダイヘッド １６ ダイヘッド内の回転部材 DESCRIPTION OF SYMBOLS 1 Crusher 2 Slit board 3 Slit 4 Coating liquid storage 5 Bearing 6 Shaft a 7 Shaft b 8 Coupling 9 Air agitator 11 Stirring tank 12 Stirrer blade 13 Stirring shaft 14 Liquid feed pump 15 Die head 16 Rotating member in die head
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.7 識別記号 ＦＩ テーマコート゛(参考） Ｂ０５Ｄ 1/26 Ｂ０５Ｄ 1/26 Ｚ 7/00 7/00 Ａ 7/14 7/14 Ｚ (72)発明者 工藤 隆義 宮城県柴田郡柴田町大字中名生字神明堂３ 番地の１ 東北リコー株式会社内 Ｆターム(参考） 4D073 AA01 BB03 CA04 CA06 4D075 AA04 AC03 AC72 DA04 DB01 DB18 DB48 EB19 4F041 AA12 AB01 BA05 BA12 BA43 BA60 CA03 CA12 CA25 4F042 AA22 CA01 CA06 CB02 CB24 4G035 AB44 AC47 ──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. 7 Identification symbol FI Theme coat ゛ (Reference) B05D 1/26 B05D 1/26 Z 7/00 7/00 A 7/14 7/14 Z (72) Invention Person Takayoshi Kudo 3-1, Nakamei, Shinmei-do, Shibata-cho, Shibata-gun, Miyagi Prefecture F-term in Tohoku Ricoh Co., Ltd. (Reference) 4D073 AA01 BB03 CA04 CA06 4D075 AA04 AC03 AC72 DA04 DB01 DB18 DB48 EB19 4F041 AA12 AB01 BA05 BA12 BA43 BA43 CA12 CA25 4F042 AA22 CA01 CA06 CB02 CB24 4G035 AB44 AC47
Claims (6)
塗布ヘッドを用いる塗布方法において、該ヘッドに塗布
液を送るポンプと該ヘッドとの間にある該ヘッドに流入
する直前の塗布液を強制的に攪拌、粉砕することを特徴
とする塗布方法。1. A coating method using a coating head having a mechanism for discharging a coating liquid from pores, wherein the coating liquid immediately before flowing into the head is located between a pump for feeding the coating liquid to the head and the head. A coating method characterized by forcibly stirring and pulverizing.
スリットに塗布液を一端から供給通過させた後、他端か
ら排出通過させることによって実施することを特徴とす
る請求項１記載の塗布方法。2. The coating according to claim 1, wherein the stirring and pulverization are performed by supplying the coating liquid through a slit in the rotary slit plate from one end and then discharging and passing the coating liquid from the other end. Method.
で回転部材により塗布液の沈降、凝集を防止することを
特徴とする請求項１又は２記載の塗布方法。3. The coating method according to claim 1, wherein in the coating head, sedimentation and aggregation of the coating liquid are prevented by a rotating member in the die head.
塗布ヘッドを備えた塗布装置において、該ヘッドに塗布
液を送るポンプと該ヘッドとの間にある該ヘッドに流入
する直前の塗布液を強制的に攪拌、粉砕する装置を有す
ることを特徴とする塗布装置。4. A coating apparatus provided with a coating head having a mechanism for discharging a coating liquid from pores, the coating liquid immediately before flowing into the head between the pump for feeding the coating liquid to the head and the head. Characterized by having a device for forcibly stirring and pulverizing.
端部に設けられた回転スリット板中のスリットを塗布液
が通過する供給系と、液溜め部からの塗布液が同スリッ
ト板中のスリットを通過する排出系からなる構成のもの
であることを特徴とする請求項４記載の塗布装置。5. A supply system through which a coating liquid passes through a slit in a rotary slit plate provided at an end of a liquid storage section, wherein the coating liquid from the liquid storage section is provided on the slit plate. 5. The coating apparatus according to claim 4, wherein the coating apparatus has a discharge system that passes through a slit in the inside.
に回転部材を有することを特徴とする請求項４又は５記
載の塗布装置。6. The coating apparatus according to claim 4, wherein the coating head has a rotating member in a die head.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11143377A JP2000325858A (en) | 1999-05-24 | 1999-05-24 | Coating method and device therefor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11143377A JP2000325858A (en) | 1999-05-24 | 1999-05-24 | Coating method and device therefor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2000325858A true JP2000325858A (en) | 2000-11-28 |
Family
ID=15337372
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11143377A Pending JP2000325858A (en) | 1999-05-24 | 1999-05-24 | Coating method and device therefor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2000325858A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105555416A (en) * | 2013-07-30 | 2016-05-04 | 荷兰应用自然科学研究组织Tno | Slot-die coating method and apparatus |
| CN106334643A (en) * | 2016-10-10 | 2017-01-18 | 芜湖瑞德机械科技有限公司 | Coating spraying device suitable for agricultural machinery parts and operation method of coating spraying device |
| CN109550643A (en) * | 2017-09-26 | 2019-04-02 | 东莞市雅康精密机械有限公司 | The coating die head and coating machine of electrodes of lithium-ion batteries |
-
1999
- 1999-05-24 JP JP11143377A patent/JP2000325858A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105555416A (en) * | 2013-07-30 | 2016-05-04 | 荷兰应用自然科学研究组织Tno | Slot-die coating method and apparatus |
| CN105555416B (en) * | 2013-07-30 | 2018-05-11 | 荷兰应用自然科学研究组织Tno | Channel mould coating method and apparatus |
| US10006124B2 (en) | 2013-07-30 | 2018-06-26 | Nederlandse Organisatie Voor Toegepast-Natuurwetenschappelijk Onderzoek Tno | Slot-die coating method and apparatus |
| CN106334643A (en) * | 2016-10-10 | 2017-01-18 | 芜湖瑞德机械科技有限公司 | Coating spraying device suitable for agricultural machinery parts and operation method of coating spraying device |
| CN109550643A (en) * | 2017-09-26 | 2019-04-02 | 东莞市雅康精密机械有限公司 | The coating die head and coating machine of electrodes of lithium-ion batteries |
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