JPH06142587A - Two layer coating die - Google Patents
Two layer coating dieInfo
- Publication number
- JPH06142587A JPH06142587A JP32605492A JP32605492A JPH06142587A JP H06142587 A JPH06142587 A JP H06142587A JP 32605492 A JP32605492 A JP 32605492A JP 32605492 A JP32605492 A JP 32605492A JP H06142587 A JPH06142587 A JP H06142587A
- Authority
- JP
- Japan
- Prior art keywords
- slit
- manifold
- layer coating
- die
- intermediate plate
- 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
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C5/00—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work
- B05C5/02—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work the liquid or other fluent material being discharged through an outlet orifice by pressure, e.g. from an outlet device in contact or almost in contact, with the work
- B05C5/0254—Coating heads with slot-shaped outlet
- B05C5/0266—Coating heads with slot-shaped outlet adjustable in length, e.g. for coating webs of different width
Landscapes
- Coating Apparatus (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、２層塗布型ダイに関す
るものであり、詳しくは、塗工幅の変更を容易に行い得
るように改良された２層塗布型ダイに関するものであ
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a two-layer coating die, and more particularly to a two-layer coating die improved so that the coating width can be easily changed.
【０００２】[0002]
【従来の技術】従来より、走行するシートの表面の塗工
法として、ダイコーティング方法が知られている。ダイ
コーティング方法は、上刃と下刃との間にマニホールド
とこれに続くスリットとを形成して成るダイを備えたダ
イコータを使用した塗工法であり、ダイ内に供給された
塗布液をマニホールドで分配させてスリットから薄膜状
に押し出し、走行するシートの表面を塗工する方法であ
る。2. Description of the Related Art Conventionally, a die coating method has been known as a method for coating the surface of a running sheet. The die coating method is a coating method using a die coater equipped with a die formed by forming a manifold and a slit following the manifold between an upper blade and a lower blade. It is a method of distributing and extruding into a thin film form from a slit, and coating the surface of a running sheet.
【０００３】ダイには、１層塗布型ダイの他に２層塗布
型ダイがあり、図３は、従来公知の２層塗布型ダイの概
要を示す説明図である。従来の２層塗布型ダイは、上刃
（１）と下刃（２）との間にマニホールド（３）とこれ
に続くスリット（４）とを形成して成り、例えば、上刃
（１）のスリット形成面（８）を傾斜面とし、当該傾斜
面と同一角度の傾斜面（９）を有する中間板（７）によ
ってマニホールド（３）とスリット（４）とを上下に分
割した構造を有する。There are two-layer coating die in addition to the one-layer coating die, and FIG. 3 is an explanatory view showing an outline of a conventionally known two-layer coating die. A conventional two-layer coating die is formed by forming a manifold (3) and a slit (4) following the manifold (3) between an upper blade (1) and a lower blade (2). For example, the upper blade (1) The slit forming surface (8) is an inclined surface, and the manifold (3) and the slit (4) are vertically divided by an intermediate plate (7) having an inclined surface (9) at the same angle as the inclined surface. .
【０００４】[0004]
【発明が解決しようとする課題】ところが、上記のよう
な構造の２層塗布型ダイは、上刃（１）の傾斜面加工の
ためにコストが高いばかりか、次のような著しい欠点が
ある。すなわち、中間板（７）を具備していない１層塗
布型ダイの場合は、例えば、スリット（４）の左右に所
定長さのシム（図示せず）を挿入配置して塗工幅の変更
を行うことが出来るが、前記のような構造の２層塗布型
ダイは、中間板（７）がスリット（４）の先端開口部
（６）に至る長さで設けられているため、スリット
（４）にシムを挿入配置することが出来ず、シムによる
塗工幅の変更を実施することが出来ない。本発明は、上
記実情に鑑みなされたものであり、その目的は、シムに
よる塗工幅の変更を実施し得るように改良された２層塗
布型ダイを提供することにある。However, the two-layer coating die having the above-described structure is not only high in cost due to the processing of the inclined surface of the upper blade (1), but also has the following remarkable drawbacks. . That is, in the case of a single-layer coating die that does not include the intermediate plate (7), for example, a shim (not shown) having a predetermined length is inserted and arranged on the left and right of the slit (4) to change the coating width. However, in the two-layer coating die having the above structure, since the intermediate plate (7) is provided so as to reach the tip opening (6) of the slit (4), the slit ( The shim cannot be inserted and arranged in 4), and the coating width cannot be changed by the shim. The present invention has been made in view of the above circumstances, and an object thereof is to provide an improved two-layer coating die so that the coating width can be changed by a shim.
【０００５】[0005]
【課題を解決するための手段】すなわち、本発明の要旨
は、上刃（１）と下刃（２）との間にマニホールド
（３）とこれに続くスリット（４）とを形成して成るダ
イにおいて、マニホールド（３）のスリット側開口部
（５）のほぼ中間高さの位置に、塗布液の流れ方向にマ
ニホールド（３）を上下に分割し且つスリット（４）の
先端開口部（６）に至らない長さの中間板（７）をスリ
ット（４）と平行に配置して成ることを特徴とする２層
塗布型ダイに存する。That is, the gist of the present invention is that a manifold (3) and a slit (4) following it are formed between an upper blade (1) and a lower blade (2). In the die, the manifold (3) is divided into upper and lower parts in the flow direction of the coating liquid and the tip opening part (6) of the slit (4) is located at a position approximately at an intermediate height of the slit side opening part (5) of the manifold (3). ). A two-layer coating die is characterized in that an intermediate plate (7) having a length not exceeding (4) is arranged in parallel with the slit (4).
【０００６】本発明の２層塗布型ダイは、本発明者等に
より見い出された次のような意外な知見に基づいて完成
されたものである。すなわち、塗布液は、比較的高い粘
度を有するため、マニホールド（３）を上下に分割する
中間板（７）により２層に分けられて供給された場合、
その後においても、相互に混合することなく、２層状態
を実質的に維持したままスリットから薄膜状に押し出さ
れる。The two-layer coating die of the present invention was completed based on the following surprising findings found by the present inventors. That is, since the coating liquid has a relatively high viscosity, when it is supplied in two layers by the intermediate plate (7) that divides the manifold (3) into upper and lower parts,
Even after that, they are extruded in a thin film form from the slit while substantially maintaining the two-layer state without being mixed with each other.
【０００７】[0007]
【実施例】以下、本発明の実施例を添付図面に基づいて
説明する。図１は、サイドプレートを取り外して示した
本発明の２層塗布型ダイの一例を示す側面説明図であ
り、図２は、本発明の２層塗布型ダイの一例を示す正面
説明図である。Embodiments of the present invention will be described below with reference to the accompanying drawings. FIG. 1 is a side view showing an example of the two-layer coating die of the present invention with the side plate removed, and FIG. 2 is a front explanatory view showing an example of the two-layer coating die of the present invention. .
【０００８】本発明の２層塗布型ダイは、基本的には、
従来公知のダイと同様に、上刃（１）と下刃（２）との
間にマニホールド（３）とこれに続くスリット（４）と
を形成して成る。The two-layer coating die of the present invention basically comprises
Similar to a conventionally known die, a manifold (3) and a slit (4) following the manifold (3) are formed between the upper blade (1) and the lower blade (2).
【０００９】本発明の２層塗布型ダイにおいては、マニ
ホールド（３）のスリット側開口部（５）のほぼ中間高
さに中間板（７）を設ける。中間板（７）は、通常、上
刃（１）と下刃（２）との間に挟み込まれてスリット
（４）と平行に配置される。In the two-layer coating die of the present invention, the intermediate plate (7) is provided at approximately the intermediate height of the slit side opening (5) of the manifold (3). The intermediate plate (7) is usually sandwiched between the upper blade (1) and the lower blade (2) and arranged parallel to the slit (4).
【００１０】開口部（５）のほぼ中間高さに中間板
（７）を設ける理由は、中間板（７）の位置がマニホー
ルド（３）の上下の一方に偏り過ぎてマニホールドの上
下に形成された各容室（ａ）、（ｂ）の一方とスリット
（４）との連通が妨げられないようにするためである。
従って、各容室（ａ）、（ｂ）がスリット（４）と連通
し、塗布液のスリット（４）への供給が各容室を通して
円滑に行われる限り、中間板（７）を設ける高さは、開
口部（５）の中央である必要はなく、上下の一方に偏っ
た位置であってもよい。マニホールド（３）の上下の一
方に偏った位置に中間板（７）を設けることにより、２
層塗工における各層の厚さを異ならせることが出来る。The reason why the intermediate plate (7) is provided approximately at the intermediate height of the opening (5) is that the intermediate plate (7) is formed above and below the manifold (3) because the position of the intermediate plate (7) is too biased. This is to prevent the communication between one of the chambers (a) and (b) and the slit (4) from being obstructed.
Therefore, as long as each chamber (a), (b) communicates with the slit (4) and the supply of the coating liquid to the slit (4) is smoothly performed through each chamber, the height of the intermediate plate (7) is increased. The size does not have to be at the center of the opening (5), and may be a position deviated to one of the upper and lower sides. By disposing the intermediate plate (7) at a position deviated to the upper or lower side of the manifold (3),
The thickness of each layer in the layer coating can be different.
【００１１】中間板（７）の長さは、塗布液の流れ方向
にマニホールド（３）を上下に分割する長さ（Ｌ１）で
あることが必要である。すなわち、各別に供給された塗
布液を相互に混合させることなく２層状態を実質的に維
持したままスリット（４）から薄膜状に押し出すために
は、中間板（７）の長さは、塗布液の流れ方向にマニホ
ールド（３）を横切ってこれを上下に分割する長さでな
ければならない。The length of the intermediate plate (7) needs to be the length (L1) that divides the manifold (3) into upper and lower parts in the flow direction of the coating liquid. That is, in order to extrude the coating liquids separately supplied from the slit (4) in a thin film form while substantially maintaining the two-layer state without mixing them with each other, the length of the intermediate plate (7) is It must be of such a length that it splits up and down across the manifold (3) in the direction of liquid flow.
【００１２】しかしながら、中間板（７）の長さは、ス
リット（４）の先端開口部（６）に至る長さ（Ｌ１＋Ｌ
２＋Ｌ３）である必要はなく、本発明においては、中間
板（７）の長さをスリット（４）の先端開口部（６）に
至らない長さ（Ｌ１＋Ｌ２）とし、残余の長さ（Ｌ３）
を利用してシム（１０）の配置空間部を形成する。However, the length of the intermediate plate (7) is the length (L1 + L) reaching the tip opening (6) of the slit (4).
2 + L3), and in the present invention, the length of the intermediate plate (7) is a length (L1 + L2) that does not reach the tip opening (6) of the slit (4), and the remaining length (L3).
Is used to form the arrangement space portion of the shim (10).
【００１３】中間板（７）の具体的な長さは、上記の通
り、２層塗布のためには、マニホールド（３）を横切る
ことの出来る長さ（Ｌ１）で十分であるが、好ましく
は、マニホールド（３）のスリット側開口部（５）から
先端開口部（６）までの長さ（Ｌ２）の５０％程度、更
に好ましくは８０％程度とされる。そして、実際に、ス
リット（４）に例えばＬ３長さのシム（１０）を挿入配
置する場合は、中間板（７）の長さをシム（１０）に当
接する長さ（Ｌ１＋Ｌ２）とし、中間板（７）とシム
（１０）との間に間隙が形成されないようにするのが好
ましい。As described above, a specific length of the intermediate plate (7) is sufficient to be able to traverse the manifold (3) for two-layer coating, but it is preferable. The length (L2) from the slit side opening (5) of the manifold (3) to the tip opening (6) is about 50%, more preferably about 80%. When actually inserting and arranging the shim (10) having the length L3 into the slit (4), the length of the intermediate plate (7) is set to the length (L1 + L2) in contact with the shim (10), It is preferred that no gap is formed between the plate (7) and the shim (10).
【００１４】サイドプレート（１１）及び（１２）は、
それぞれ、上刃（１）と下刃（２）の側面に中間板
（７）を介して配置され、各サイドプレートに設けられ
た塗布液供給口（１３）及び（１４）から塗布液が供給
される。各供給口から供給された塗布液は、マニホール
ド（３）内の中間板（７）を経由し、２層状態を実質的
に維持したままスリットから薄膜状に押し出され、走行
するシート（図示せず）の表面に対して２層塗布され
る。The side plates (11) and (12) are
The coating solution is supplied from the coating solution supply ports (13) and (14) provided on the side plates of the upper blade (1) and the lower blade (2) via the intermediate plate (7), respectively. To be done. The coating liquid supplied from each supply port passes through the intermediate plate (7) in the manifold (3) and is extruded in a thin film form from the slit while substantially maintaining the two-layer state, and the running sheet (not shown). Two layers are applied to the surface of (No.).
【００１５】[0015]
【発明の効果】以上説明した本発明によれば、シムによ
る塗工幅の変更を実施し得るように改良された２層塗布
型ダイが提供され、本発明の工業的価値は大である。According to the present invention described above, a two-layer coating die improved so that the coating width can be changed by a shim is provided, and the industrial value of the present invention is great.
【図１】本発明の２層塗布型ダイの一例を示す側面説明
図である。FIG. 1 is a side view showing an example of a two-layer coating die according to the present invention.
【図２】本発明の２層塗布型ダイの一例を示す正面説明
図である。FIG. 2 is an explanatory front view showing an example of a two-layer coating die according to the present invention.
【図３】従来公知の２層塗布型ダイの概要を示す説明図
である。FIG. 3 is an explanatory view showing an outline of a conventionally known double-layer coating die.
１：上刃 ２：下刃 ３：マニホールド ４：スリット ５：スリット側開口部 ６：先端開口部 ７：中間板 １１：サイドプレート １２：サイドプレート １３：塗布液供給口 １４：塗布液供給口 1: Upper Blade 2: Lower Blade 3: Manifold 4: Slit 5: Slit Side Opening 6: Tip Opening 7: Intermediate Plate 11: Side Plate 12: Side Plate 13: Coating Liquid Supply Port 14: Coating Liquid Supply Port
Claims (1)
ールド（３）とこれに続くスリット（４）とを形成して
成るダイにおいて、マニホールド（３）のスリット側開
口部（５）のほぼ中間高さの位置に、塗布液の流れ方向
にマニホールド（３）を上下に分割し且つスリット
（４）の先端開口部（６）に至らない長さの中間板
（７）をスリット（４）と平行に配置して成ることを特
徴とする２層塗布型ダイ。1. A die formed by forming a manifold (3) and a slit (4) following the manifold (3) between an upper blade (1) and a lower blade (2), and a slit side opening of the manifold (3). An intermediate plate (7) having a length which does not reach the tip opening (6) of the slit (4) and which divides the manifold (3) into upper and lower parts at a position approximately at an intermediate height of (5) in the flow direction of the coating liquid. A two-layer coating type die, characterized in that is arranged in parallel with the slit (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP32605492A JPH06142587A (en) | 1992-11-11 | 1992-11-11 | Two layer coating die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP32605492A JPH06142587A (en) | 1992-11-11 | 1992-11-11 | Two layer coating die |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH06142587A true JPH06142587A (en) | 1994-05-24 |
Family
ID=18183594
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP32605492A Pending JPH06142587A (en) | 1992-11-11 | 1992-11-11 | Two layer coating die |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH06142587A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR19980015230A (en) * | 1996-08-20 | 1998-05-25 | 이웅열 | Extrusion type applicator |
| EP2017013A3 (en) * | 2007-07-19 | 2009-01-28 | Nordson Corporation | Slot nozzle assembly, slot coating gun, shim plate, and method of extruding a foamable melted material in a wide band |
-
1992
- 1992-11-11 JP JP32605492A patent/JPH06142587A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR19980015230A (en) * | 1996-08-20 | 1998-05-25 | 이웅열 | Extrusion type applicator |
| EP2017013A3 (en) * | 2007-07-19 | 2009-01-28 | Nordson Corporation | Slot nozzle assembly, slot coating gun, shim plate, and method of extruding a foamable melted material in a wide band |
| US8347809B2 (en) | 2007-07-19 | 2013-01-08 | Nordson Corporation | Slot nozzle assembly, slot coating gun, shim plate, and method of extruding a foamable melted material in a wide band |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A02 | Decision of refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A02 Effective date: 20020530 |