JP2002146308A - Tacky adhesive tape and method for producing the same - Google Patents
Tacky adhesive tape and method for producing the sameInfo
- Publication number
- JP2002146308A JP2002146308A JP2000351131A JP2000351131A JP2002146308A JP 2002146308 A JP2002146308 A JP 2002146308A JP 2000351131 A JP2000351131 A JP 2000351131A JP 2000351131 A JP2000351131 A JP 2000351131A JP 2002146308 A JP2002146308 A JP 2002146308A
- Authority
- JP
- Japan
- Prior art keywords
- adhesive tape
- pressure
- sensitive adhesive
- viscoelastic body
- bodies
- 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
Landscapes
- Extrusion Moulding Of Plastics Or The Like (AREA)
- Adhesive Tapes (AREA)
- Adhesives Or Adhesive Processes (AREA)
- Building Environments (AREA)
- Laminated Bodies (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は粘弾性体を用いた粘
着テープに関するもので、特に、防水用に用いられるブ
チルテープに関するものである。The present invention relates to a pressure-sensitive adhesive tape using a viscoelastic material, and more particularly to a butyl tape used for waterproofing.
【０００２】[0002]
【従来の技術】例えば、建築物において、壁部材とアル
ミサッシ等との接合部においては、間隙止水材としてブ
チルテープを介在させて防水を図ることが行われてい
る。即ち、一定の厚みと粘弾性があるテープを設けるこ
とで、壁部材表面の凹凸（不陸）を吸収し、水密化を図
っている。しかしながら、通常のブチルテープは、成形
後の蓄熱性が高いという特性を有し、余熱変形等に起因
して、その表面に窪みや凹凸等が形成され易く、平坦性
は高くない。そのような状体のブチルテープを貼着する
と、壁部材等の被貼着体との間に、無秩序的に、間隙に
よる空気溜まりが形成されてしまうことがあった。こう
した空気溜まりは、接着力や防水機能の低下の原因とな
るものであった。そこで、こうした不具合を解決するも
のとして、図１０に示すように、粘弾性体からなる複数
本の円柱状の線状体５１を横一列に配列して一体化した
ブチルテープ５０が試案された（参照：特開平１０−１
６９０２６号公報）。このブチルテープ５０であると、
貼着したときに、各線状体５１、５１の間と被貼着体と
の間に複数本の長手方向に沿った規則的な空隙部が形成
される。従って、転圧によって空気が長手方向片端また
は両端から押し出されるので、空気溜まりの形成が防止
される。また、その長手方向に沿った空隙部が止水線と
なり、幅方向に連通した漏水路の形成が妨げられ、防水
機能を発揮する。2. Description of the Related Art For example, in a building, at a joint between a wall member and an aluminum sash or the like, waterproofing is performed by interposing a butyl tape as a waterproof material for a gap. That is, by providing a tape having a certain thickness and viscoelasticity, irregularities (unevenness) on the surface of the wall member are absorbed, and watertightness is achieved. However, ordinary butyl tape has the property of having high heat storage properties after molding, and dents and irregularities are easily formed on its surface due to residual heat deformation and the like, and the flatness is not high. When the butyl tape having such a shape is stuck, air pockets may be formed randomly between the butyl tape and a stuck body such as a wall member. Such air pockets cause a decrease in adhesive strength and waterproof function. In order to solve such a problem, a butyl tape 50 in which a plurality of columnar linear bodies 51 made of a viscoelastic body are arranged in a row and integrated as shown in FIG. Reference: JP-A-10-1
No. 69026). With this butyl tape 50,
At the time of sticking, a plurality of regular gaps along the longitudinal direction are formed between the linear bodies 51, 51 and the adherend. Therefore, the air is pushed out from one end or both ends in the longitudinal direction by the rolling, so that the formation of an air pocket is prevented. In addition, a void portion along the longitudinal direction serves as a water stop line, and the formation of a water leakage path communicating in the width direction is prevented, and a waterproof function is exhibited.
【０００３】[0003]
【発明が解決しようとする課題】従来、ブチルテープを
介在させる隙間は、通常、２ｍｍ程度であり、上記線状
体５１からなるブチルテープにおいては、その各線状体
５１の直径を２ｍｍ程度として厚さを確保していた。し
かしながら、近年特に、適用させるべき隙間が３ｍｍ以
上となることがあり、ブチルテープに３ｍｍ以上の厚さ
が要求されることが多くなった。そこで、上記線状体５
１からなるブチルテープにおいて、厚さを３ｍｍ以上に
するには、各線状体５１の直径を３ｍｍ以上にすること
になる。しかし、全体の幅を変えることなく、各線状体
５１の太さのみを太くすることは、横一列に配列される
線状体５１の本数を必然的に削減することになる。その
結果、止水線の本数も削減されることとなり、防水機能
が低下するおそれがある。また、厚みを厚くするには、
必然的にブチルゴムの使用量を増加しなければならない
が、少しでもその増加量を削減することが希求されてい
る。また、ブチルテープの貼着施工は、必ずしも施工作
業の容易な状況下で行われるとは限られず、高い転圧を
かけることが困難な場合もある。その為、転圧作業時に
高い転圧抵抗が生じると、転圧が不十分となってしまう
おそれがあり、接着強度や防水機能の低下を招来するこ
ともある。従って、確実な転圧の為には、転圧抵抗が低
いことが望まれる。また、貼着後における残圧抵抗が大
きいと、被貼着体に反発し、被貼着体に対して反り等の
変形させようとする力が作用するので、残圧抵抗もより
低いことが望まれる。そこで、転圧抵抗や残圧抵抗を低
くするには、ブチルテープの材質をより軟化することが
考えられる。しかしながら、ブチルテープをより軟化す
ると、成形困難になってしまう他、形状保持性ないし保
存性が悪化し、取扱性の低いものとなってしまう上に、
厚みを確保できなくなって、防水機能を発揮できなくな
ってしまうおそれがある。Conventionally, the gap for interposing a butyl tape is usually about 2 mm. In the case of the butyl tape composed of the linear bodies 51, the diameter of each linear body 51 is set to about 2 mm and the thickness is increased. Was secured. However, recently, in particular, the gap to be applied may be 3 mm or more, and the thickness of the butyl tape is required to be 3 mm or more. Therefore, the linear body 5
In order to make the thickness 3 mm or more in the butyl tape made of No. 1, the diameter of each linear body 51 is made 3 mm or more. However, increasing only the thickness of each linear body 51 without changing the overall width inevitably reduces the number of linear bodies 51 arranged in a horizontal row. As a result, the number of water stop lines is also reduced, and the waterproof function may be reduced. Also, to increase the thickness,
Inevitably, the use amount of butyl rubber must be increased, but it is desired to reduce the increase amount at all. In addition, the application of the butyl tape is not always performed under the condition that the operation is easy, and it may be difficult to apply a high rolling pressure. For this reason, if a high rolling resistance occurs during the rolling operation, the rolling may be insufficient, which may lead to a decrease in the adhesive strength or the waterproof function. Therefore, for reliable rolling, it is desired that the rolling resistance is low. Also, if the residual pressure resistance after the application is large, the rebound to the adhered body is exerted, and a force for deforming the adhered body such as warpage acts on the adherend, so that the residual pressure resistance may be lower. desired. Therefore, in order to reduce the rolling resistance and the residual pressure resistance, it is conceivable to soften the material of the butyl tape. However, when the butyl tape is further softened, it becomes difficult to mold, and the shape retention or preservability deteriorates, and the handling becomes low.
There is a possibility that the thickness cannot be secured and the waterproof function cannot be exhibited.
【０００４】本発明は前記課題を解決するためになされ
たもので、被貼着体の表面に多少の凹凸があっても高い
接着性能及び防水機能を発揮しつつ、厚みを増加するこ
とができ、かつ、転圧抵抗や残圧抵抗の小さい軽量で低
コストな粘着テープ及びその製造方法を目的とするもの
である。SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problem, and it is possible to increase the thickness while exhibiting a high adhesive performance and a waterproof function even if the surface of the adherend has some irregularities. Another object of the present invention is to provide a lightweight and low-cost pressure-sensitive adhesive tape having a small rolling resistance and a low residual pressure resistance and a method for producing the same.
【０００５】[0005]
【課題を解決するための手段】本発明の粘着テープは、
少なくとも片面に長さ方向に沿った複数本の溝が形成さ
れた板状体が複数積層した形状で、接着面に複数本の溝
が形成された粘弾性体を有することを特徴とするもので
ある。ここで、粘弾性体がブチルゴムからなるものが望
ましい。さらに、板状体どうしの間に中空部が長さ方向
に沿って線状に形成されていることが望ましい。また、
粘弾性体は複数本の線状体の集積体であることが望まし
い。その場合、線状体は断面が略円形状のものが望まし
い。本発明の粘着テープの製造方法は、横方向及び高さ
方向に配列した複数の吐出口から粘弾性体を押し出し、
それらを集積して一体化する工程を有することを特徴と
するものである。The pressure-sensitive adhesive tape of the present invention comprises:
It is characterized by having a viscoelastic body having a plurality of grooves formed on an adhesive surface in a shape in which a plurality of plate-like bodies each having a plurality of grooves formed along a length direction are formed on at least one surface. is there. Here, it is desirable that the viscoelastic body is made of butyl rubber. Further, it is desirable that the hollow portion is formed linearly along the length direction between the plate-like bodies. Also,
The viscoelastic body is desirably an aggregate of a plurality of linear bodies. In that case, the linear body preferably has a substantially circular cross section. The method of manufacturing the pressure-sensitive adhesive tape of the present invention extrudes a viscoelastic body from a plurality of discharge ports arranged in a horizontal direction and a height direction,
It is characterized by having a step of integrating and integrating them.
【０００６】[0006]
【発明の実施の形態】本発明の粘着テープは、例えば図
１に示すように、剥離紙１４上に、粘弾性体１２が形成
されたものである。粘弾性体１２は、粘着性、弾性を有
するもので、ブチルゴム等の各種の粘着性を有する合成
ゴムが挙げられる。中でも、ブチルゴムが望ましい。本
発明においては、その粘弾性体１２の形状に特徴があ
る。即ち、粘弾性体１２は複数の板状体が積層した形状
となっている。図示例のものでは、断面が略円形の複数
本の線状体２０が横一列に配列した形状の板状体１６、
１８が２段に積層した形状となっている。図示例では線
状体は断面円形状となっているが、これだけでなく、所
定の溝が形成されるのであれば、線状体の形状は他の形
状でも良い。また、図示例では２段に積層した形状とな
っているが、３段またはそれ以上の積層数でも良い。ま
た、図示例の板状体１６と板状体１８は同一形状とされ
ているが、全ての板状体が同一形状であるものに限られ
ない。尚、本発明では、結果として積層されたような形
状を有していれば良く、板状体を積層することによって
製造されたことを意味するのではない。各板状体１６、
１８は、その片面または両面（図示例では両面）にテー
プの長さ方向に沿った複数本の溝２２，２２，・・・が形
成されている。そして、その板状体１６、１８を積層し
た形状の粘弾性体１２においても、その片面または両面
（図示例では両面）に溝２２、２２、・・・が形成され、
被貼着体との接着面に複数本の溝が形成された形状とな
っている。これら溝２２は、被貼着体に貼り合わせた状
態では、止水線を形成する。溝２２の幅は０.１〜０.８
ｍｍが好ましく、溝の間隔は１〜４ｍｍが好ましい。溝
の深さは０.２〜０.７ｍｍが好ましい。さらに、この粘
弾性体１２の内部には、複数本の中空部２４，２４，・・
・が形成されている。この中空部２４は、溝２２と同様
に、テープの長さ方向に沿って平行に形成されているこ
とが望ましい。剥離紙は特に限られるものではなく、粘
弾性体と良好な剥離性を有する公知のものを適用でき
る。DESCRIPTION OF THE PREFERRED EMBODIMENTS The pressure-sensitive adhesive tape of the present invention has a viscoelastic body 12 formed on a release paper 14 as shown in FIG. 1, for example. The viscoelastic body 12 has adhesiveness and elasticity, and examples thereof include synthetic rubbers having various adhesivenesses such as butyl rubber. Among them, butyl rubber is desirable. The present invention is characterized by the shape of the viscoelastic body 12. That is, the viscoelastic body 12 has a shape in which a plurality of plate-like bodies are stacked. In the illustrated example, the plate-like body 16 has a shape in which a plurality of linear bodies 20 each having a substantially circular cross section are arranged in a horizontal row.
18 has a two-tiered shape. In the illustrated example, the linear body has a circular cross section. However, the linear body may have another shape as long as a predetermined groove is formed. Further, in the illustrated example, the shape is such that the layers are stacked in two layers, but the number of layers may be three or more. Further, the plate-like body 16 and the plate-like body 18 in the illustrated example have the same shape, but it is not limited to all the plate-like bodies having the same shape. In the present invention, it suffices to have a shape as a result of lamination, and it does not mean that it is manufactured by laminating plate-like bodies. Each plate-like body 16,
A plurality of grooves 18 are formed on one surface or both surfaces (both surfaces in the illustrated example) along the length direction of the tape. Also, in the viscoelastic body 12 having the shape in which the plate-like bodies 16 and 18 are laminated, the grooves 22 are formed on one or both sides (both sides in the illustrated example).
It has a shape in which a plurality of grooves are formed on the bonding surface with the adherend. These grooves 22 form a water stop line in a state where the grooves 22 are attached to the adherend. The width of the groove 22 is 0.1 to 0.8.
mm is preferable, and the interval between the grooves is preferably 1 to 4 mm. The depth of the groove is preferably 0.2 to 0.7 mm. Further, inside the viscoelastic body 12, a plurality of hollow portions 24, 24,.
・ Is formed. This hollow portion 24 is desirably formed in parallel to the length direction of the tape, like the groove 22. The release paper is not particularly limited, and a known paper having a viscoelastic body and good release properties can be applied.
【０００７】このような形状の粘弾性体は複数個の円形
の吐出口の形成されたダイからブチルゴムを押し出し、
それらを集積して一体化することで容易に製造できる。
この際、図２に示すように、横方向及び高さ方向に所定
の数の吐出口３２、３２、・・・が２列に配列したダイ３
０を用いることが良い。その際、両側方近傍に位置する
吐出口の口径を内側に位置する吐出口の口径よりも大き
くしておくことで、各吐出口からの線状体の太さを均一
化できるので、望ましい。このようなダイを用いて押出
機からブチルゴムを押し出すことにより、複数本の線状
体が押し出されるが、これらを引き揃えて纏めることで
互いに接着し、一体化される。その後、図３に示すよう
に、水槽３８中を通過させて冷却し、剥離紙１４と共に
巻き取ることで粘着テープ１０が製造される。このよう
な製造方法であると、自ずと、図１に示すように、両表
面に複数本の溝２２が形成され、かつ、内部に長さ方向
に沿って線状に形成された中空部２４を有する粘弾性体
１２を有する粘着テープ１０が製造される。尚、得られ
る各線状体の太さはダイの吐出口の口径その他の成形条
件（引取速度など）によって制御できる。また、上記説
明では、複数本の線状体を押し出して集積一体化して本
発明に係る粘弾性体を成形しているが、当該形状に成形
できるのであればこれに限られるものではなく、例えば
図４に示すような１つの吐出口３６が形成されたダイ３
４を用いて成形してもかまわない。The viscoelastic body having such a shape extrudes butyl rubber from a die having a plurality of circular discharge ports,
They can be easily manufactured by integrating and integrating them.
At this time, as shown in FIG. 2, a die 3 in which a predetermined number of discharge ports 32, 32,.
It is good to use 0. At this time, it is desirable that the diameter of the discharge port located near both sides is made larger than the diameter of the discharge port located inside, so that the thickness of the linear body from each discharge port can be made uniform. By extruding butyl rubber from the extruder using such a die, a plurality of linear bodies are extruded, but they are adhered to each other by being gathered together and integrated. Thereafter, as shown in FIG. 3, the adhesive tape 10 is cooled by passing through a water tank 38 and wound up together with the release paper 14 to manufacture the adhesive tape 10. According to such a manufacturing method, naturally, as shown in FIG. 1, a plurality of grooves 22 are formed on both surfaces, and a hollow portion 24 linearly formed inside along the length direction is formed inside. The adhesive tape 10 having the viscoelastic body 12 is manufactured. In addition, the thickness of each linear body obtained can be controlled by the diameter of the discharge port of the die and other molding conditions (such as a take-up speed). Further, in the above description, a plurality of linear bodies are extruded and integrated to form the viscoelastic body according to the present invention, but the present invention is not limited to this as long as it can be formed into the shape. Die 3 having one discharge port 36 as shown in FIG.
4 may be used.
【０００８】本発明の粘着テープは通常一般の方法で使
用することができる。例えば、図５に示すように、ま
ず、一方の被貼着体２００上に貼着する。この際、板状
体１６の各線状体２０の下端部のみが被貼着体２００と
接触し、貼着する。そして、剥離紙１４を剥がし、裏返
して、図６に示すように、他方の被貼着体１００の所定
の位置に載せ、上側からローラ４００等で転圧して貼着
すればよい。[0008] The pressure-sensitive adhesive tape of the present invention can be used in a usual manner. For example, as shown in FIG. 5, first, one of the adherends 200 is attached. At this time, only the lower end of each linear body 20 of the plate-like body 16 comes into contact with the adherend 200 and adheres. Then, the release paper 14 is peeled off, turned over, and placed on a predetermined position of the other adherend 100 as shown in FIG.
【０００９】本発明の粘着テープであると、粘弾性体１
２と被貼着体１００、２００を接触させた時点で、それ
らの間に溝２２による長手方向に沿った規則的な空隙部
が形成され、転圧によって空気が長手方向片端または両
端から押し出され、空気が排出されて空気溜まりの形成
が防止される。その結果、被貼着体と十分に密着し、設
計通りの接着強度が発揮される。また、防水用とした場
合、空気溜まりによる漏水路の形成がないので、防水性
がより高められる。また、防水用の場合、貼着状体にお
いて、溝２２が止水線となり、高い防水機能を発揮す
る。本発明の粘着テープであると、粘弾性体の厚さを増
加するに際し、各板状体の厚さを増加させることなく、
その積層数の数を増やすことによって、粘弾性体１２の
厚さを増加することができる。従って、高い厚さが要求
される用途に用いる場合であっても、溝２２の本数を増
やすことができるので、転圧による空気溜まりの防止効
果、止水線形成による防水効果を高く発揮できる。ま
た、転圧時には、溝が形成されていることで、粘弾性体
と被貼着体の接触面積が小さくされていることから、比
較的少ない力を加えるだけで、高い圧力が接着面にかか
り、強く接着するようになる。According to the pressure-sensitive adhesive tape of the present invention, the viscoelastic body 1
2 and the adherends 100 and 200 are brought into contact with each other, a regular gap is formed between them along the longitudinal direction by the groove 22, and the air is pushed out from one or both ends in the longitudinal direction by rolling. Air is discharged to prevent the formation of air pockets. As a result, it adheres sufficiently to the adherend, and the designed adhesive strength is exhibited. In the case of waterproofing, since there is no formation of a water leakage channel due to air pools, waterproofness is further improved. Further, in the case of waterproofing, the groove 22 serves as a water blocking line in the adhered body, and exhibits a high waterproofing function. With the pressure-sensitive adhesive tape of the present invention, when increasing the thickness of the viscoelastic body, without increasing the thickness of each plate-like body,
By increasing the number of layers, the thickness of the viscoelastic body 12 can be increased. Therefore, even when used for applications requiring a high thickness, the number of the grooves 22 can be increased, so that the effect of preventing the accumulation of air due to the compaction and the waterproof effect by forming the water stop line can be exhibited. In addition, at the time of rolling, since the groove is formed, the contact area between the viscoelastic body and the adherend is reduced, so that a relatively small force is applied and a high pressure is applied to the bonding surface. , Comes to adhere strongly.
【００１０】また、本発明の粘着テープにおいて、粘弾
性体の接着面に形成された溝に加えて内部に中空部を形
成したものであると、粘弾性体１２の表面積が増加し、
放熱性に優れている。従って、蓄熱量が低減するので余
熱変形が抑えられ、凹凸等の形成が削減し、成形精度が
向上する。よって、空気溜まりの形成もより抑制される
他、設計通りの接着性が発揮され、密着性も向上する。
余熱変形が少なく膨張度が小さいことから、より設計通
りの形状に成形でき、溝をより確実に形成できる。ま
た、中空部が形成されていることで、原材料の使用量の
大幅増を伴うことなく、全体としての厚みを高くするこ
とができ、軽量化及び低コスト化を図ることができる。
さらに、中空部が形成されていることにより、これがク
ッションとなり、反発力が低減する。その結果、貼着作
業時の転圧抵抗が低下するので、少ない力で確実に接着
できるようになる。さらに、残圧抵抗も低く抑えること
ができるので、変形作用を防止できる。さらにまた、材
質自体を軟化することなくクッション性を発揮させたこ
とから、形状保持性ないし保存性がよく、取扱性も高
く、また、厚みを確保し易い。また、本発明の粘着テー
プは鋏などの簡易且つ種々の切断手段で容易に切断する
ことができ、作業性が高いものであるが、（特に鋏で）
切断すると、その際の剪断力等により、その切断面にお
いて中空部が自ずと塞がれ、中空部は空気の充満した密
閉空間となる。この密閉空間が貼着作業時及び貼着後に
おいて、エアクッションとして機能し、転圧抵抗及び残
圧抵抗の削減や、形状保持性に大きく寄与する。さら
に、被貼着体の表面に歪みがあった場合にも、このエア
クッションにより粘弾性体が被貼着体の表面により追随
するようになり、より高い接着強度や防水性を発揮す
る。In the pressure-sensitive adhesive tape of the present invention, if a hollow portion is formed inside the groove in addition to the groove formed on the adhesive surface of the viscoelastic body, the surface area of the viscoelastic body 12 increases,
Excellent heat dissipation. Therefore, since the amount of heat storage is reduced, the residual heat deformation is suppressed, the formation of irregularities and the like is reduced, and the molding accuracy is improved. Therefore, the formation of an air pocket is further suppressed, and the designed adhesion is exhibited, and the adhesion is also improved.
Since there is little residual heat deformation and the degree of expansion is small, it can be formed into a more designed shape and the groove can be formed more reliably. Further, since the hollow portion is formed, the thickness as a whole can be increased without accompanying a large increase in the amount of used raw materials, and the weight and cost can be reduced.
Further, since the hollow portion is formed, the hollow portion serves as a cushion, and the repulsive force is reduced. As a result, the rolling resistance at the time of the sticking operation is reduced, so that the bonding can be reliably performed with a small force. Further, since the residual pressure resistance can be suppressed low, the deformation action can be prevented. Furthermore, since the cushioning property is exhibited without softening the material itself, the shape retention property or storage property is good, the handling property is high, and the thickness is easily secured. Further, the adhesive tape of the present invention can be easily cut by simple and various cutting means such as scissors and has high workability.
Upon cutting, the hollow portion is naturally closed at the cut surface by the shearing force or the like at that time, and the hollow portion becomes a closed space filled with air. This sealed space functions as an air cushion during the sticking operation and after the sticking, and greatly contributes to the reduction of the rolling resistance and the residual pressure resistance and the shape retention. Furthermore, even when the surface of the adherend is distorted, the air cushion allows the viscoelastic body to follow the surface of the adherend, thereby exhibiting higher adhesive strength and waterproofness.
【００１１】[0011]
【実施例】図２に示すように、吐出口３２が横方向に９
個、高さ方向に２列並び、合計１８個の吐出口３２が形
成された多孔ダイ３０を用いて、押出機からブチルゴム
を１８本の線状体として押し出し、これを集積、一体化
し、水冷し、得られた２段構造の粘弾性体を剥離紙上に
纏めて粘着テープを製造した。この際、図２に示すよう
に、両側方の外側に近い位置の８個の吐出口の直径を
１.５ｍｍ、他の吐出口の直径を１.０ｍｍとしたダイを
用い、各線状体の直径が約２ｍｍ、高さが４ｍｍ、幅が
１５ｍｍの、表裏両面にそれぞれ８本ずつの溝２２が形
成された粘弾性体１２を有する粘着テープ１０を得た。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS As shown in FIG.
Butyl rubber is extruded as 18 linear bodies from an extruder using a porous die 30 having a total of 18 discharge ports 32 arranged in a row in the height direction, and these are collected, integrated, and water-cooled. Then, the obtained viscoelastic body having a two-stage structure was combined on release paper to produce an adhesive tape. At this time, as shown in FIG. 2, using a die in which the diameters of eight discharge ports near the outside on both sides were 1.5 mm and the diameters of the other discharge ports were 1.0 mm, An adhesive tape 10 having a viscoelastic body 12 having a diameter of about 2 mm, a height of 4 mm, and a width of 15 mm and having eight grooves 22 on each of the front and back surfaces was obtained.
【００１２】得られた粘着テープに関して転圧抵抗と残
圧抵抗を測定した。転圧抵抗試験は、粘着テープの粘弾
性体（φ２×２段×１５×５０ｍｍ）１２を図７に示す
ように、２枚のアクリル板（６×１５×７０ｍｍ）４０
の間に挟み込み、上下方向から５ｍｍ／min.で圧縮し、
その際の圧縮率に対する抵抗値を測定した。測定結果を
図８に示した。残圧抵抗試験は、粘着テープの粘弾性体
１２を図７に示すように、２枚のアクリル板（６×１５
×７０ｍｍ）４０の間に挟み込み、上下方向から圧縮し
て、圧縮率を５０％とし、抵抗値の経時変化を測定し
た。測定結果を図９に示した。比較のため、同じブチル
ゴムからなる平板形状（４×１５×５０ｍｍ、溝の形成
無し）の粘弾性体を用いて同様の試験を行った。さら
に、図１０に示すように、線状体が１列に配列一体化し
た粘弾性体（φ２×１５×５０ｍｍ）と、厚みを２ｍｍ
とした平板形状（２×１５×５０ｍｍ）の粘弾性体につ
いても、同様の試験を行った。図８、９中、線状体が２
段に配列一体化した本実施例の粘着テープは−●−、厚
さ４ｍｍの平板形状の粘弾性体の粘着テープは−▲−、
線状体を１段に配列一体化した粘着テープは−■−、厚
さ２ｍｍの平板形状の粘弾性体の粘着テープは−◆−で
示した。Rolling resistance and residual pressure resistance of the obtained adhesive tape were measured. In the rolling resistance test, as shown in FIG. 7, a viscoelastic body (φ2 × 2 steps × 15 × 50 mm) 12 of an adhesive tape was converted into two acrylic plates (6 × 15 × 70 mm) 40 as shown in FIG.
And compressed at 5mm / min. From above and below.
The resistance value with respect to the compressibility at that time was measured. FIG. 8 shows the measurement results. In the residual pressure resistance test, as shown in FIG. 7, the viscoelastic body 12 of the adhesive tape was placed on two acrylic plates (6 × 15).
(× 70 mm) and compressed from the vertical direction to a compression ratio of 50%, and the change with time of the resistance value was measured. The measurement results are shown in FIG. For comparison, a similar test was performed using a viscoelastic body having the same plate shape (4 × 15 × 50 mm, no groove formed) made of the same butyl rubber. Further, as shown in FIG. 10, a viscoelastic body (φ2 × 15 × 50 mm) in which linear bodies are arranged and integrated in one line, and a thickness of 2 mm
A similar test was performed for a viscoelastic body having a flat plate shape (2 × 15 × 50 mm). 8 and 9, the linear body is 2
The pressure-sensitive adhesive tape of the present example, which is arranged and integrated in a step, is-●-, the pressure-sensitive adhesive tape of a viscoelastic body having a thickness of 4 mm is-▲-,
The pressure-sensitive adhesive tape in which the linear bodies were arranged and integrated in one stage was indicated by-■-, and the pressure-sensitive adhesive tape of a 2 mm-thick plate-shaped viscoelastic material was indicated by-◆-.
【００１３】図８から明らかなように、平板形状の粘着
テープ（−▲−）であると、圧縮率を高めると転圧抵抗
も急激に上昇し、圧縮率が５０％になると、転圧抵抗が
６４.３Ｎ／ｃｍ2になってしまうが、本実施例の粘着テ
ープ（−●−）であると、転圧抵抗の上昇が抑制され、
５０％の圧縮率でも転圧抵抗値は３０.６Ｎ／ｃｍ2に抑
制されている。従って、本実施例の粘着テープである
と、少ない転圧抵抗で貼着作業をすることができる。ま
た、１列に配列一体化した粘着テープ（−■−）では、
圧縮率が小さいときは転圧抵抗も抑制されているもの
の、圧縮率が３０％を過ぎた辺りから転圧抵抗が急激に
上昇し、５０％の圧縮率では転圧抵抗が４９.７Ｎ／ｃ
ｍ2になってしまっている。これは、各線状体の間に形
成されていた溝が押圧されて潰れることで、転圧抵抗が
急激に上昇するのに対して、本実施例の粘着テープの場
合、中空部２４、２４、・・・が形成されているので、こ
れが転圧抵抗の上昇を抑制し、転圧抵抗の急激な変化が
抑えられているものと考えられる。図９から明らかなよ
うに、本実施例の粘着テープ以外では７分経過後でも残
圧抵抗が１０Ｎ／ｃｍ2以下にならず、高い残圧抵抗が
持続してしまっている。しかし、本実施例の粘着テープ
では、即時に残圧抵抗が低下し、１分後には既に１０Ｎ
／ｃｍ2以下になり、８分後には残圧抵抗値は３.０Ｎ／
ｃｍ2にまで低下している。従って、本実施例の粘着テ
ープを用いれば、施工後における被貼着体の変形等を極
力防止できる。As is apparent from FIG. 8, in the case of a flat plate-shaped pressure-sensitive adhesive tape (-▲-), when the compression ratio is increased, the compaction resistance is also sharply increased. Is 64.3 N / cm 2 , but with the pressure-sensitive adhesive tape (-●-) of the present embodiment, an increase in rolling resistance is suppressed,
Even at a compression ratio of 50%, the rolling resistance is suppressed to 30.6 N / cm 2 . Therefore, with the pressure-sensitive adhesive tape of this embodiment, the sticking operation can be performed with a small rolling resistance. In the adhesive tape (-■-) integrated in one line,
When the compression ratio is small, the rolling resistance is suppressed, but the compression resistance sharply increases around 30% of the compression ratio, and at a compression ratio of 50%, the rolling resistance is 49.7 N / c.
I've become a m 2. This is because, while the grooves formed between the linear bodies are pressed and crushed, the rolling resistance rapidly increases, whereas in the case of the adhesive tape of the present embodiment, the hollow portions 24, 24, .. Are formed, it is considered that this suppresses an increase in the rolling resistance and suppresses a rapid change in the rolling resistance. As is clear from FIG. 9, the residual pressure resistance does not become 10 N / cm 2 or less even after elapse of 7 minutes except for the adhesive tape of this example, and the high residual pressure resistance is maintained. However, in the pressure-sensitive adhesive tape of this example, the residual pressure resistance immediately decreased, and after one minute, the pressure was already reduced to 10N.
/ Cm 2 or less, and after 8 minutes, the residual pressure resistance value is 3.0 N /
cm 2 . Therefore, if the pressure-sensitive adhesive tape of this embodiment is used, deformation of the adherend after construction can be prevented as much as possible.
【００１４】[0014]
【発明の効果】本発明の粘着テープであると、転圧によ
って空気が溝から排出されて空気溜まりの形成が防止さ
れる。その結果、被貼着体と十分に密着し、設計通りの
接着強度が発揮される。また、防水用の場合、空気溜ま
りによる漏水路の形成がないので、防水性がより高めら
れる。また、防水用とした場合、貼着状体において、溝
が止水線となり、高い防水機能を発揮する。さらに、積
層数を増やすことによって、粘弾性体の厚さを増加する
ことができるので、高い厚さが要求される用途に用いる
場合であっても、溝の本数を増やすことができるので、
転圧による空気溜まりの防止効果、止水線形成による防
水効果を高く発揮できる。また、転圧時には、溝が形成
されていることで、粘弾性体と被貼着体の接触面積が小
さくされていることから、比較的少ない力を加えるだけ
で、高い圧力が接着面にかかり、強く接着するようにな
る。According to the pressure-sensitive adhesive tape of the present invention, the air is discharged from the groove by the rolling pressure and the formation of an air pocket is prevented. As a result, it adheres sufficiently to the adherend, and the designed adhesive strength is exhibited. In the case of waterproofing, since there is no formation of a water leakage channel due to the air pool, waterproofness is further improved. In the case of waterproofing, the groove in the adhered body serves as a water stop line, exhibiting a high waterproofing function. Furthermore, by increasing the number of laminations, the thickness of the viscoelastic body can be increased, so even when used for applications requiring a high thickness, the number of grooves can be increased,
The effect of preventing the accumulation of air due to the compaction and the waterproofing effect by forming a water stop line can be exhibited. In addition, at the time of rolling, since the groove is formed, the contact area between the viscoelastic body and the adherend is reduced, so that a relatively small force is applied and a high pressure is applied to the bonding surface. , Comes to adhere strongly.
【００１５】また、粘弾性体に中空部を形成したもので
あると、粘弾性体の表面積が増加し、放熱性が向上し、
蓄熱量が低減するので余熱変形が抑えられ、凹凸等の形
成が削減し、成形精度が向上する。よって、空気溜まり
の形成もより抑制される他、設計通りの接着性が発揮さ
れ、密着性も向上する。余熱変形が少なく膨張度が小さ
いことから、より設計通りの形状に成形でき、溝をより
確実に形成できる。また、中空部が形成されていること
で、原材料の使用量の大幅増を伴うことなく、全体とし
ての厚みを高くすることができ、軽量化及び低コスト化
を図ることができる。さらに、中空部が形成されている
ことにより、これがクッションとなり、反発力が低減す
る。その結果、貼着作業時の転圧抵抗が低下するので、
少ない力で確実に接着できるようになる。さらに、残圧
抵抗も低く抑えることができるので、変形作用を防止で
きる。さらにまた、形状保持性ないし保存性がよく、取
扱性も高く、また、厚みを確保し易い。また、切断によ
って、中空部が密閉空間となって、貼着作業時及び貼着
後において、エアクッションとして機能し、転圧抵抗及
び残圧抵抗の削減や、形状保持性にさらに寄与する。さ
らに、被貼着体の表面に歪みがあった場合にも、このエ
アクッションにより粘弾性体が被貼着体の表面により追
随するようになり、より高い接着強度や防水性を発揮す
る。Further, when a hollow portion is formed in the viscoelastic body, the surface area of the viscoelastic body is increased, and the heat dissipation is improved.
Since the heat storage amount is reduced, the residual heat deformation is suppressed, the formation of irregularities and the like is reduced, and the molding accuracy is improved. Therefore, the formation of an air pocket is further suppressed, and the designed adhesion is exhibited, and the adhesion is also improved. Since there is little residual heat deformation and the degree of expansion is small, it can be formed into a more designed shape and the groove can be formed more reliably. Further, since the hollow portion is formed, the thickness as a whole can be increased without accompanying a large increase in the amount of used raw materials, and the weight and cost can be reduced. Further, since the hollow portion is formed, the hollow portion serves as a cushion, and the repulsive force is reduced. As a result, the rolling resistance during the sticking operation decreases,
Adhesion can be achieved with a small force. Further, since the residual pressure resistance can be suppressed low, the deformation action can be prevented. Furthermore, it has good shape retention or preservability, high handleability, and easy thickness. In addition, the cutting makes the hollow portion a closed space, and functions as an air cushion during and after the sticking operation, and further contributes to the reduction of the rolling resistance and the residual pressure resistance and the shape retention. Furthermore, even when the surface of the adherend is distorted, the air cushion allows the viscoelastic body to follow the surface of the adherend, thereby exhibiting higher adhesive strength and waterproofness.
【図１】 本発明の粘着テープの一例を示す斜視図であ
る。FIG. 1 is a perspective view showing an example of an adhesive tape of the present invention.
【図２】 製造に用いるダイの一例を示す正面図であ
る。FIG. 2 is a front view showing an example of a die used for manufacturing.
【図３】 製造例を示す概略構成図である。FIG. 3 is a schematic configuration diagram showing a production example.
【図４】 ダイの一例を示す正面図である。FIG. 4 is a front view showing an example of a die.
【図５】 使用方法の一工程を説明するための斜視図で
ある。FIG. 5 is a perspective view for explaining one step of the method of use.
【図６】 使用方法の一工程を説明するための斜視図で
ある。FIG. 6 is a perspective view for explaining one step of the method of use.
【図７】 試験方法を説明するための斜視図である。FIG. 7 is a perspective view for explaining a test method.
【図８】 転圧抵抗試験の結果を示すグラフである。FIG. 8 is a graph showing the results of a rolling resistance test.
【図９】 残圧抵抗試験の結果を示すグラフである。FIG. 9 is a graph showing the results of a residual pressure resistance test.
【図１０】 従来例の粘弾性体の一例を示す斜視図であ
る。FIG. 10 is a perspective view showing an example of a conventional viscoelastic body.
１０ 粘着テープ １２ 粘弾性体 １４ 剥離紙 １６ 板状体 １８ 板状体 ２０ 線状体 ２２ 溝 ２４ 中空部 ３０ ダイ ３２ 吐出口 ５０ 粘弾性体 ５１ 線状体 DESCRIPTION OF SYMBOLS 10 Adhesive tape 12 Viscoelastic body 14 Release paper 16 Plate body 18 Plate body 20 Linear body 22 Groove 24 Hollow part 30 Die 32 Discharge port 50 Viscoelastic body 51 Linear body
───────────────────────────────────────────────────── 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） Ｅ０４Ｂ 1/68 Ｂ２９Ｋ 9:00 // Ｂ２９Ｋ 9:00 Ｂ２９Ｌ 31:10 Ｂ２９Ｌ 31:10 Ｅ０４Ｂ 1/68 Ｚ Ｆターム(参考） 2E001 DA01 FA04 FA32 FA71 GA76 HE01 KA01 LA04 MA02 MA04 4F100 AK09A AK09B AN00A AN00B AN02A AN02B BA02 BA15 BA16 BA22 DC21 DC24 DD05A DD05B GB07 JD05 JK07A JK07B JL13 4F207 AA46 AD05 AD08 AD24 AE10 AG03 AH43 AH46 KA01 KA17 KB13 KL64 KM26 4J004 AB01 CE01 CE03 FA10 ──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. 7 Identification symbol FI Theme coat ゛ (Reference) E04B 1/68 B29K 9:00 // B29K 9:00 B29L 31:10 B29L 31:10 E04B 1/68 Z F-term (reference) 2E001 DA01 FA04 FA32 FA71 GA76 HE01 KA01 LA04 MA02 MA04 4F100 AK09A AK09B AN00A AN00B AN02A AN02B BA02 BA15 BA16 BA22 DC21 DC24 DD05A DD05B GB07 JD05 JK07A JK07B JL13 4F207 AA46 KA13 AD05 AA46 KA13 AD05 KB 4J004 AB01 CE01 CE03 FA10
Claims (6)
本の溝が形成された板状体が複数積層した形状で、接着
面に複数本の溝が形成された粘弾性体を有することを特
徴とする粘着テープ。1. A viscoelastic body having a shape in which a plurality of plate-like bodies each having a plurality of grooves formed in at least one surface along a length direction are laminated and having a plurality of grooves formed in an adhesive surface. Characteristic adhesive tape.
を特徴とする請求項１記載の粘着テープ。2. The pressure-sensitive adhesive tape according to claim 1, wherein the viscoelastic body is made of butyl rubber.
向に沿って線状に形成されていることを特徴とする請求
項１または２記載の粘着テープ3. The pressure-sensitive adhesive tape according to claim 1, wherein a hollow portion is formed linearly along the length direction between the plate-like bodies.
であることを特徴とする請求項１、２、３のいずれかに
記載の粘着テープ。4. The pressure-sensitive adhesive tape according to claim 1, wherein the viscoelastic body is an integrated body of a plurality of linear bodies.
を特徴とする請求項４記載の粘着テープ。5. The pressure-sensitive adhesive tape according to claim 4, wherein the linear body has a substantially circular cross section.
出口から粘弾性体を押し出し、それらを集積して一体化
する工程を有することを特徴とする粘着テープの製造方
法。6. A method for producing a pressure-sensitive adhesive tape, comprising a step of extruding viscoelastic bodies from a plurality of discharge ports arranged in a horizontal direction and a height direction, and integrating and integrating them.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000351131A JP4837167B2 (en) | 2000-11-17 | 2000-11-17 | Manufacturing method of adhesive tape |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000351131A JP4837167B2 (en) | 2000-11-17 | 2000-11-17 | Manufacturing method of adhesive tape |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2002146308A true JP2002146308A (en) | 2002-05-22 |
| JP4837167B2 JP4837167B2 (en) | 2011-12-14 |
Family
ID=18824242
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2000351131A Expired - Fee Related JP4837167B2 (en) | 2000-11-17 | 2000-11-17 | Manufacturing method of adhesive tape |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP4837167B2 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010001650A (en) * | 2008-06-20 | 2010-01-07 | Jess:Kk | Waterproof tape for building, and external wall material mounting structure using the same |
| JP2012127035A (en) * | 2010-12-17 | 2012-07-05 | Shindo:Kk | Elastic tape and manufacturing method thereof |
| CN114801111A (en) * | 2022-05-20 | 2022-07-29 | 广州恒星传导科技股份有限公司 | Double-wire manufacturing method |
| CN115612418A (en) * | 2022-10-20 | 2023-01-17 | 泉州市同兴反光材料有限公司 | Noctilucent reflective tape suitable for different time periods and production process thereof |
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| JPS6377708A (en) * | 1986-09-20 | 1988-04-07 | Bridgestone Corp | Extrusion of plasticized substance |
| JPH01308472A (en) * | 1988-06-06 | 1989-12-13 | Nitto Denko Corp | Pressure-sensitive adhesive member, insulating pressure-sensitive adhesive tape and electrical component insulated therewith |
| JPH08244094A (en) * | 1995-03-13 | 1996-09-24 | Denki Kagaku Kogyo Kk | Prepration of sheet |
| JPH10169026A (en) * | 1996-12-13 | 1998-06-23 | Asahi Corp | Waterproofing butyl type |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010001650A (en) * | 2008-06-20 | 2010-01-07 | Jess:Kk | Waterproof tape for building, and external wall material mounting structure using the same |
| JP2012127035A (en) * | 2010-12-17 | 2012-07-05 | Shindo:Kk | Elastic tape and manufacturing method thereof |
| CN114801111A (en) * | 2022-05-20 | 2022-07-29 | 广州恒星传导科技股份有限公司 | Double-wire manufacturing method |
| CN115612418A (en) * | 2022-10-20 | 2023-01-17 | 泉州市同兴反光材料有限公司 | Noctilucent reflective tape suitable for different time periods and production process thereof |
| CN115612418B (en) * | 2022-10-20 | 2023-12-01 | 泉州市同兴反光材料有限公司 | Luminous reflecting band suitable for different time periods and its production process |
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| JP4837167B2 (en) | 2011-12-14 |
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