JPH0741747A - Production of pressure-sensitive adhesive tape - Google Patents
Production of pressure-sensitive adhesive tapeInfo
- Publication number
- JPH0741747A JPH0741747A JP5188099A JP18809993A JPH0741747A JP H0741747 A JPH0741747 A JP H0741747A JP 5188099 A JP5188099 A JP 5188099A JP 18809993 A JP18809993 A JP 18809993A JP H0741747 A JPH0741747 A JP H0741747A
- Authority
- JP
- Japan
- Prior art keywords
- temperature
- adhesive
- coating
- adhesive tape
- pressure
- 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
Landscapes
- Coating Apparatus (AREA)
- Adhesive Tapes (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、粘着テープ基材に粘着
剤を塗布して粘着テープを製造する方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for producing an adhesive tape by applying an adhesive to an adhesive tape base material.
【０００２】[0002]
【従来の技術】粘着剤を塗布して粘着テープを製造する
方法について、図３の従来の粘着テープの製造方法の説
明図に基づいて説明すれば、粘着テープとなる基材３０
は、バックアップロール２０に巻回されて、バックアッ
プロール２０の上方に設置された普通鋼や鋳造された金
属製の塗布ロール１０との隙間を搬送され、バックアッ
プロール２０に隣接して配置されている糊溜４０内の粘
着剤５０を塗布されて送り出される。塗布される粘着剤
５１の厚さはバックアップロール２０と塗布ロール１０
との隙間を塗布ロールによって調節して決められるよう
になされている（日本粘着テープ工業会、昭和６０年３
月２日刊行、「粘着ハンドブック」184 〜185 頁参
照）。2. Description of the Related Art A method for manufacturing an adhesive tape by applying an adhesive will be described with reference to the explanatory view of the conventional adhesive tape manufacturing method of FIG.
Is wound around the backup roll 20, conveyed through a gap between the backup roll 20 and the coating roll 10 made of ordinary steel or cast metal, and is disposed adjacent to the backup roll 20. The adhesive 50 in the glue reservoir 40 is applied and sent out. The thickness of the adhesive 51 applied is the backup roll 20 and the application roll 10.
It is designed to be adjusted by adjusting the gap between and with the coating roll (Japan Adhesive Tape Manufacturers Association, March 1985).
Published “Month 2nd,” Adhesion Handbook, pages 184-185).
【０００３】ところが実際には、塗布ロール１０と常温
放置された粘着剤５０との間には温度差があり、これが
原因で塗布ロール１０の幅方向に温度差（温度勾配）が
生じ、この温度差（温度勾配）の影響で塗布ロール１０
が熱変形を起こす。即ち、高温の部分は直径が拡大さ
れ、低温の部分では直径が縮小されるという現象が起こ
り、この為に塗布ロール１０とバックアップロール２０
との幅方向における間隙が一定とならず、基材３０に塗
布された粘着剤５１の厚さが幅方向でばらつきを生じ、
この為に２次加工工程の巻戻しや細幅へのスリット加工
において、皺の発生や巻ずれが生じるといった問題があ
った。However, in reality, there is a temperature difference between the coating roll 10 and the adhesive 50 left at room temperature, which causes a temperature difference (temperature gradient) in the width direction of the coating roll 10, and this temperature. The coating roll 10 is affected by the difference (temperature gradient).
Causes thermal deformation. That is, the diameter of the high temperature portion is enlarged, and the diameter of the low temperature portion is reduced. Therefore, the coating roll 10 and the backup roll 20 are reduced.
And the gap in the width direction is not constant, and the thickness of the adhesive 51 applied to the base material 30 varies in the width direction.
For this reason, there has been a problem that wrinkles are generated or winding deviation occurs in the rewinding or slit processing to a narrow width in the secondary processing step.
【０００４】この問題を解決する技術として、糊溜内の
粘着剤及び塗布ロールの温度を一定にする為に、水の循
環装置を備える方法が一般にとられている。その例とし
て塗布ロールの内壁面に螺旋状の流路を設けて、この流
路内に一定温度に制御された水を通して塗布ロールの各
部の温度差を少なくする方法がある。As a technique for solving this problem, a method is generally used in which a water circulation device is provided in order to keep the temperature of the pressure-sensitive adhesive in the glue reservoir and the coating roll constant. As an example, there is a method in which a spiral flow path is provided on the inner wall surface of the coating roll, and water whose temperature is controlled to a constant temperature is passed through the flow path to reduce the temperature difference between the parts of the coating roll.
【０００５】ところが、上記の方法においては、塗布前
の粘着剤の温度と塗布ロールの表面温度との間には温度
落差があるため、粘着剤の温度の影響を受けて、塗布ロ
ールの幅方向に温度差が生じ、このために塗布ロールが
熱変形を起こし、設定した粘着剤の厚さとなる塗布ロー
ル１とバックアップロール２とのクリアランスに変化が
生じて、幅方向における粘着剤の塗布厚さが不均一とな
る問題が残されている。However, in the above method, since there is a temperature difference between the temperature of the pressure-sensitive adhesive before coating and the surface temperature of the coating roll, it is affected by the temperature of the pressure-sensitive adhesive and the width direction of the coating roll is affected. Causes a temperature difference in the coating roll, which causes thermal deformation of the coating roll, which causes a change in the clearance between the coating roll 1 and the backup roll 2, which is the set adhesive thickness, and the coating thickness of the adhesive in the width direction. There is still the problem of being non-uniform.
【０００６】本発明は、上記従来技術におけるこのよう
な問題点を解消し、多種類の粘着剤を使用して多品種の
粘着テープを製造する方法において、塗布ロールに対す
る一系列の温度制御系の装置、即ち熱交換器と制御器の
設置のみによる少ない設備投資でもって、粘着テープの
幅方向の厚さを均一にする方法を提供することにある。The present invention solves the above-mentioned problems in the prior art, and in a method for producing a variety of pressure-sensitive adhesive tapes using a variety of pressure-sensitive adhesives, a series of temperature control systems for coating rolls is used. An object of the present invention is to provide a method for making the thickness of the adhesive tape uniform in the width direction with a small capital investment only by installing the device, that is, the heat exchanger and the controller.
【０００７】[0007]
【課題を解決するための手段】本発明の粘着テープの製
造方法においては、粘着テープとなる基材を巻回して搬
送するバックアップロールの上方に、粘着剤を塗布する
塗布ロールが近接して設置され、この両ロール間に隣接
して糊溜が設けられてなる塗布装置において、塗布装置
の糊溜内の塗布前の粘着剤の温度を検知し、粘着剤の種
類、固形分量、塗布速度及び塗布厚さの各要素から決め
られる数値を温度定数とし、この温度定数を塗布前の粘
着剤の温度に加えて塗布ロールの温度とし、この塗布ロ
ールの温度を制御装置により制御して粘着テープ基材に
粘着剤を塗布することを特徴とする。In the method for producing an adhesive tape according to the present invention, an application roll for applying an adhesive is installed close to a backup roll for winding and transporting a base material to be an adhesive tape. In the coating device provided with a glue reservoir adjacent to both rolls, the temperature of the pressure-sensitive adhesive before coating in the glue reservoir of the coating device is detected, and the type of the pressure-sensitive adhesive, the solid content, the coating speed and The numerical value determined from each element of the coating thickness is the temperature constant, this temperature constant is added to the temperature of the adhesive before coating to be the temperature of the coating roll, and the temperature of this coating roll is controlled by the controller to control the adhesive tape base. It is characterized in that an adhesive is applied to the material.
【０００８】[0008]
【作用】本発明の粘着テープの製造方法においては、塗
布装置の糊溜内の塗布前の粘着剤の温度を検知し、粘着
剤の種類、固形分量、塗布速度及び塗布厚さの各要素か
ら決められる数値を温度定数とし、この温度定数を塗布
前の粘着剤の温度に加えて塗布ロールの温度とし、この
塗布ロールの温度を制御装置により制御して粘着テープ
基材に粘着剤を塗布することにより、製造される粘着テ
ープは幅方向の粘着剤の厚さのばらつきのない均一なも
のとなり、２次加工工程の巻戻しや、粘着テープの細幅
スリット加工において、皺の発生や巻ずれの生じない高
品質のものとすることができる。In the method for producing an adhesive tape of the present invention, the temperature of the adhesive before application in the glue reservoir of the application device is detected, and the type of adhesive, solid content, application speed and application thickness The determined numerical value is the temperature constant, and this temperature constant is added to the temperature of the pressure-sensitive adhesive before coating to be the temperature of the coating roll, and the temperature of this coating roll is controlled by the controller to coat the pressure-sensitive adhesive tape with the pressure-sensitive adhesive. As a result, the pressure-sensitive adhesive tape produced becomes uniform without variation in the thickness of the pressure-sensitive adhesive in the width direction, and wrinkles or winding misalignment occur during rewinding in the secondary processing step or narrow slit processing of the pressure-sensitive adhesive tape. It can be a high-quality product that does not generate.
【０００９】[0009]
【実施例】以下、本発明の実施例を図面、及び表を参照
して説明する。図１は本発明の粘着テープの製造方法の
概略を示す説明図である。図１において、１は塗布ロー
ルで外径２２０ミリメートル、幅１６００ミリメート
ル、肉厚３０ミリメートルの炭素鋼製で、液体の流路と
なる銅製の螺旋管が内壁に沿って嵌合して設けられてお
り、この螺旋管の端末は外部の流路と接続できるように
なされている。２は炭素鋼製のバックアップロールで外
径３００ミリメートル、幅１６００ミリメートル、肉厚
３０ミリメートルである。Embodiments of the present invention will be described below with reference to the drawings and tables. FIG. 1 is an explanatory view showing the outline of the method for producing an adhesive tape of the present invention. In FIG. 1, reference numeral 1 denotes a coating roll made of carbon steel having an outer diameter of 220 mm, a width of 1600 mm, and a wall thickness of 30 mm, and a copper spiral tube serving as a liquid flow path is fitted along the inner wall. The end of this spiral tube can be connected to an external flow path. Reference numeral 2 is a carbon steel backup roll having an outer diameter of 300 mm, a width of 1600 mm, and a wall thickness of 30 mm.
【００１０】本実施例では、粘着テープとなる基材３に
ポリ塩化ビニル樹脂製のフイルムを使用し、固形分５５
パーセントのアクリル系粘着剤５を糊溜４に投入して、
糊溜４内にセットされた温度検知部８により粘着剤の温
度を検知したところ摂氏２０度であった。粘着剤の塗布
厚さが７０ミクロンになるようにバックアップロール２
と塗布ロール１との間隙を塗布ロール１により加減して
調整した。In this embodiment, a polyvinyl chloride resin film is used as the base material 3 which serves as an adhesive tape, and the solid content is 55%.
Add a percentage of the acrylic adhesive 5 to the glue reservoir 4,
When the temperature of the pressure-sensitive adhesive was detected by the temperature detection unit 8 set in the glue reservoir 4, it was 20 degrees Celsius. Backup roll 2 so that the adhesive coating thickness is 70 microns
The gap between the coating roll 1 and the coating roll 1 was adjusted by adjusting the coating roll 1.
【００１１】次に、塗布ロール１の温度を制御するため
温度検知部８で検知した粘着剤５の温度を制御器６に伝
達し、塗布ロール１と粘着剤５との温度差が摂氏２度、
即ち塗布ロール１の温度が摂氏２２度となるように熱交
換器７を作動させ、バックアップロール２を駆動して塗
布速度毎分５０メートルで粘着テープ５ａを製造した。Next, in order to control the temperature of the coating roll 1, the temperature of the adhesive 5 detected by the temperature detecting section 8 is transmitted to the controller 6, and the temperature difference between the coating roll 1 and the adhesive 5 is 2 degrees Celsius. ,
That is, the heat exchanger 7 was operated so that the temperature of the coating roll 1 was 22 degrees Celsius, and the backup roll 2 was driven to manufacture the adhesive tape 5a at a coating speed of 50 meters per minute.
【００１２】更に、本発明を実施する上で重要な要素で
ある温度定数を決定する為、上記説明と同じように塗布
ロール１と粘着剤５との温度差を前後に振って設定し
て、塗布加工テストを数十回に渡って実施して粘着テー
プの幅方向における塗布厚さのばらつきの状況と温度定
数との関係を検討した。この結果を図２により説明する
と、横軸の温度定数は塗布ロールと粘着剤との温度差を
示し、縦軸は粘着テープの粘着剤の厚さの幅方向の３点
測定の最大値と最小値の差のＲ値を単位ミクロンで示し
ている。グラフ上の○印が上記テストの結果をプロット
したもので、厚み差０となる横線と○印のプロットを結
んだ線との交点における温度差摂氏３度が、上記の粘着
テープの製造における幅方向の厚み差を解消する条件、
即ち温度定数となるもので、塗布前の粘着剤の温度にこ
の温度定数を加えて塗布ロールの温度を決定することが
できる。Further, in order to determine the temperature constant, which is an important factor in carrying out the present invention, the temperature difference between the coating roll 1 and the adhesive 5 is set by swinging back and forth as in the above description. The coating test was conducted several tens of times to examine the relationship between the temperature constant and the situation of the variation in the coating thickness in the width direction of the adhesive tape. The results will be described with reference to FIG. 2. The temperature constant on the horizontal axis indicates the temperature difference between the coating roll and the adhesive, and the vertical axis indicates the maximum and minimum values of the three-point measurement of the adhesive thickness of the adhesive tape in the width direction. The R value of the difference in value is shown in units of microns. The ○ mark on the graph plots the results of the above test, and the temperature difference of 3 degrees Celsius at the intersection of the horizontal line where the thickness difference is 0 and the line connecting the plots of the ○ marks is the width in the production of the adhesive tape. Conditions to eliminate the thickness difference in the direction,
That is, it becomes a temperature constant, and the temperature of the coating roll can be determined by adding this temperature constant to the temperature of the pressure-sensitive adhesive before coating.
【００１３】上記と同じテスト方法により各種の粘着剤
による粘着テープの製造条件、即ち温度定数を決定する
ことが可能で、更に同一の塗布装置を使用して本発明の
塗布方法によって各種の粘着剤を使った粘着テープを製
造し、表１に示す結果を得た。It is possible to determine the production conditions of pressure-sensitive adhesive tapes using various pressure-sensitive adhesives, that is, temperature constants, by the same test method as described above, and further, by using the same coating apparatus, various pressure-sensitive adhesives can be used by the coating method of the present invention. A pressure-sensitive adhesive tape using was produced, and the results shown in Table 1 were obtained.
【００１４】[0014]
【表１】 [Table 1]
【００１５】この表１に記載されているように、粘着剤
の種類、固形分量、塗布速度及び塗布厚さの各要素か
ら、温度定数が決められ、これに基づいて塗布前の粘着
剤の温度を検知して塗布ロールの温度を決定し、制御す
ることにより、幅方向の厚さのばらつきのない粘着テー
プを製造することができる。As shown in Table 1, the temperature constant is determined from the factors of the type of adhesive, solid content, coating speed and coating thickness, and the temperature of the adhesive before coating is determined based on this. By detecting and controlling the temperature of the coating roll, the pressure-sensitive adhesive tape having no variation in thickness in the width direction can be manufactured.
【００１６】次に、表２に、粘着テープの幅方向の厚さ
のばらつきを、表１に示す本発明による塗布方法による
結果と、従来からの塗布方法、即ち塗布ロールと粘着剤
を常温に自然放置したままで製造した場合の結果とを比
較評価したものを示す。Next, Table 2 shows the variation in thickness in the width direction of the adhesive tape, the result of the coating method according to the present invention shown in Table 1, and the conventional coating method, that is, the coating roll and the pressure-sensitive adhesive at room temperature. The results of comparative evaluation with the results of the production in the state of being left naturally are shown.
【００１７】[0017]
【表２】 [Table 2]
【００１８】この表２において、Ｒ平均値は塗布後の粘
着テープの粘着剤の厚さを幅方向３点で測定し、最大値
と最小値との差をとったものである。この比較結果か
ら、本発明による塗布方法においては、従来の塗布方法
に比較して大幅にばらつきが改良され、ほぼ均一な厚さ
の粘着剤の塗布のできることが確認された。In Table 2, the R average value is obtained by measuring the thickness of the adhesive of the adhesive tape after coating at three points in the width direction and taking the difference between the maximum value and the minimum value. From this comparison result, it was confirmed that in the coating method according to the present invention, the variation was remarkably improved as compared with the conventional coating method, and the adhesive having a substantially uniform thickness could be coated.
【００１９】[0019]
【発明の効果】本発明の粘着テープの製造方法において
は、多種類の粘着剤を使用して多品種の粘着テープを製
造するに際して、塗布ロールに対する一系列の温度制御
系の装置の設置のみで、幅方向の粘着剤の厚さのばらつ
きのない均一な高品質の粘着テープが製造でき、２次加
工工程の巻戻しや、粘着テープの細幅スリット加工にお
いて、皺の発生や巻ずれが生じるといった問題が解消で
きる。従って、粘着テープの製造方法として好適であ
る。According to the method for producing an adhesive tape of the present invention, when producing various kinds of adhesive tapes using many kinds of adhesives, it is only necessary to install a series of temperature control system devices for the coating rolls. A uniform and high-quality adhesive tape with no variation in the thickness of the adhesive in the width direction can be manufactured, and wrinkles or winding deviations occur in the rewinding of the secondary processing step or the narrow slit processing of the adhesive tape. Such problems can be solved. Therefore, it is suitable as a method for producing an adhesive tape.
【図１】本発明の粘着テープの製造方法の概略を示す説
明図。FIG. 1 is an explanatory view showing an outline of a method for producing an adhesive tape of the present invention.
【図２】本発明の粘着テープの製造方法によるテストデ
ータを示すグラフ。FIG. 2 is a graph showing test data according to the method for producing an adhesive tape of the present invention.
【図３】従来の粘着テープの製造方法の概略を示す説明
図。FIG. 3 is an explanatory view showing an outline of a conventional adhesive tape manufacturing method.
１ 塗布ロール ２ バックアップロール ３ 基材 ４ 糊溜 ５ 粘着剤 ６ 制御器 ７ 熱交換器 ８ 温度検知部 1 Application Roll 2 Backup Roll 3 Base Material 4 Adhesive 5 Adhesive 6 Controller 7 Heat Exchanger 8 Temperature Detector
Claims (1)
塗布して粘着テープを製造する方法において、塗布装置
の糊溜内の塗布前の粘着剤の温度を検知し、粘着剤の種
類、固形分量、塗布速度及び塗布厚さの各要素から決め
られる数値を温度定数とし、この温度定数を塗布前の粘
着剤の温度に加えて塗布ロールの温度とし、この塗布ロ
ールの温度を制御装置により制御して粘着テープ基材に
粘着剤を塗布することを特徴とする粘着テープの製造方
法。1. A method for producing an adhesive tape by applying an adhesive to a pressure-sensitive adhesive tape substrate by an application device, detecting the temperature of the adhesive before application in a glue reservoir of the application device, and determining the type of the adhesive. The value determined from each element of solid content, coating speed and coating thickness is the temperature constant, this temperature constant is the temperature of the pressure-sensitive adhesive before coating and the temperature of the coating roll, and the temperature of this coating roll is controlled by the controller. A method for producing an adhesive tape, which comprises applying an adhesive to an adhesive tape base material in a controlled manner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5188099A JPH0741747A (en) | 1993-07-29 | 1993-07-29 | Production of pressure-sensitive adhesive tape |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5188099A JPH0741747A (en) | 1993-07-29 | 1993-07-29 | Production of pressure-sensitive adhesive tape |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0741747A true JPH0741747A (en) | 1995-02-10 |
Family
ID=16217689
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5188099A Pending JPH0741747A (en) | 1993-07-29 | 1993-07-29 | Production of pressure-sensitive adhesive tape |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0741747A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2016194441A (en) * | 2015-03-31 | 2016-11-17 | 大日本印刷株式会社 | Sensor module and mounting method of the same, and structure with sensor module mounted thereon |
-
1993
- 1993-07-29 JP JP5188099A patent/JPH0741747A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2016194441A (en) * | 2015-03-31 | 2016-11-17 | 大日本印刷株式会社 | Sensor module and mounting method of the same, and structure with sensor module mounted thereon |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP4811108B2 (en) | Coating layer thickness measuring mechanism and coating layer forming apparatus using the same | |
| US4729858A (en) | Magnetic liquid application method and apparatus | |
| US4776997A (en) | Thickness-correcting coating method | |
| US4548837A (en) | Method and apparatus for coating | |
| US5435848A (en) | Apparatus for controlling thickness of coated film on web-like member by roll coater | |
| JPH0741747A (en) | Production of pressure-sensitive adhesive tape | |
| JP2007169797A (en) | Apparatus for producing coated sheet and method for producing the same | |
| JP4068727B2 (en) | Coating apparatus and coating method | |
| JP2003010762A (en) | Coating apparatus and coating method | |
| JPH0741746A (en) | Production of pressure-sensitive adhesive tape | |
| JP2000107668A (en) | Coater and coating method | |
| JPH0734044A (en) | Production of adhesive tape | |
| JP2001087695A (en) | Coating apparatus | |
| JPH05138098A (en) | Coating material supplying apparatus for roll coater | |
| JP2979345B2 (en) | Application method | |
| JP3812075B2 (en) | Application system | |
| JPS637870A (en) | Apparatus for controlling film on painted steel plate | |
| JP3191166B2 (en) | Application method | |
| JP2005211762A (en) | Coater, coating method and manufacturing method of resin sheet | |
| JP2001300393A (en) | Die coating device for metallic sheet | |
| JPH06306492A (en) | Method for trucking strip in strip continuous heat treatment line | |
| JPS58216754A (en) | Control method of transfer | |
| WO2001053603A1 (en) | Method and device in connection with the production of paper or paperboard, and paper or paperboard product | |
| JPH11347630A (en) | Actual result of elongation percentage calculating method and elongation percentage control method of metal plate in tension leveler | |
| JPH10247117A (en) | Film thickness measuring method and device therefor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A977 | Report on retrieval |
Free format text: JAPANESE INTERMEDIATE CODE: A971007 Effective date: 20051208 |
|
| A131 | Notification of reasons for refusal |
Effective date: 20051220 Free format text: JAPANESE INTERMEDIATE CODE: A131 |
|
| A521 | Written amendment |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20060220 |
|
| A02 | Decision of refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A02 Effective date: 20060328 |