JPH05171118A - Tacky tape having fine tacky layer and its production - Google Patents
Tacky tape having fine tacky layer and its productionInfo
- Publication number
- JPH05171118A JPH05171118A JP3338523A JP33852391A JPH05171118A JP H05171118 A JPH05171118 A JP H05171118A JP 3338523 A JP3338523 A JP 3338523A JP 33852391 A JP33852391 A JP 33852391A JP H05171118 A JPH05171118 A JP H05171118A
- Authority
- JP
- Japan
- Prior art keywords
- pressure
- sensitive adhesive
- adhesive layer
- strong
- tacky
- 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
- Adhesive Tapes (AREA)
- Adhesives Or Adhesive Processes (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】この発明は、微粘着層を有する粘
着テープ及びその製造方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an adhesive tape having a slight adhesive layer and a method for producing the same.
【０００２】[0002]
【従来の技術】封書、箱などの封をしたり、紙片を壁等
に固定するのに粘着テープが利用されており、このよう
な用途に用いられる粘着テープとしては、セロハン粘着
テープ、クラフト粘着テープなどの紙粘着テープ、軟質
塩化ビニル系樹脂粘着テープや延伸ポリプロピレン粘着
テープなどのプラスチックフィルム粘着テープなどが使
用されている。2. Description of the Related Art Adhesive tapes are used to seal envelopes, boxes, etc., and to fix paper pieces to walls, etc. Adhesive tapes used in such applications include cellophane adhesive tapes and craft adhesives. Paper adhesive tape such as tape, plastic film adhesive tape such as soft vinyl chloride resin adhesive tape and stretched polypropylene adhesive tape are used.
【０００３】ところで、この種の粘着テープの粘着剤
は、一般に強粘着性の粘着剤が使用されているので、一
旦被着体に粘着剤面が当たると、その位置修正が難し
く、無理してずらそうすると、被着体自体の表面が剥が
れるという欠点があった。By the way, since the adhesive of this type of adhesive tape is generally a strong adhesive, it is difficult to correct the position of the adherend once it comes into contact with the adherend. If it is displaced, there is a drawback that the surface of the adherend is peeled off.
【０００４】一方、粘着力の弱い微粘着性の粘着剤を使
用した粘着製品もあるが、このような粘着製品は、再剥
離が容易なことを主眼とする粘着メモパッド（付せん
紙）や仮止めテープ（再剥離メンディングテープ）など
に使用されており、長期的貼着用途には適していない。On the other hand, there are adhesive products using a slightly adhesive adhesive having a weak adhesive force. Such adhesive products are mainly adhesive memo pads (sticky papers) and temporary adhesives whose main purpose is easy re-peeling. It is used as a stopping tape (removable mending tape) and is not suitable for long-term application.
【０００５】また、弱粘着剤と強粘着剤との二種の粘着
剤を用い、弱粘着剤を強粘着剤よりも被着面側に突出さ
れた状態にすることによって、押圧力を弱くすると写真
を再剥離可能に貼着でき、押圧力を強くすると写真を固
定できる写真用シートなどの粘着製品が特開平１−２２
１４７８号公報に提案されている。Further, by using two kinds of pressure sensitive adhesives, a weak pressure sensitive adhesive and a strong pressure sensitive adhesive, and by making the weak pressure sensitive adhesive more protruded to the adherend surface side than the strong pressure sensitive adhesive, the pressing force is weakened. An adhesive product, such as a photographic sheet, which can be re-separably attached to a photograph and can be fixed by increasing the pressing force, is disclosed in JP-A 1-22.
It is proposed in Japanese Patent No. 1478.
【０００６】[0006]
【発明が解決しようとする課題】上記特開平１−２２１
４７８号公報に記載の粘着製品においては、弱粘着剤を
平行線状模様、格子状模様、水玉状模様などの模様に強
粘着剤層上に塗工するか、弱粘着剤を強粘着剤より厚く
なるよう両粘着剤を互い違いに塗工するなどして、弱粘
着剤を強粘着剤よりも突出させている。DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention
In the pressure-sensitive adhesive product described in Japanese Patent No. 478, a weak pressure-sensitive adhesive is coated on the strong pressure-sensitive adhesive layer in a pattern such as a parallel line pattern, a grid pattern, or a polka dot pattern, or Both adhesives are applied alternately so that the thickness becomes thicker, so that the weak adhesives are made to protrude more than the strong adhesives.
【０００７】ところで、この平行線状模様、格子状模
様、水玉状模様などの弱粘着剤層の模様の大きさやその
間隔、突出程度等が、粘着製品の初期接着時の微粘着
性、押圧力を強くしたとき強粘着性に大きく影響する。
例えば、弱粘着剤層同士の間隔が数ｍｍ以上に広がる
と、強粘着剤層面迄が被着体に当接して接着してしまい
再剥離することができない、また、弱粘着剤層の模様が
大きいと、押圧力を強くしても十分な強粘着性が発現し
ない等の問題があった。By the way, the size of the pattern of the weak pressure-sensitive adhesive layer such as the parallel line pattern, the lattice pattern, and the polka dot pattern, the interval, the degree of protrusion, etc. are determined by the slight adhesiveness and the pressing force during the initial bonding of the pressure-sensitive adhesive product. When the strength is increased, the strong adhesion is greatly affected.
For example, when the distance between the weak pressure-sensitive adhesive layers is expanded to several mm or more, the strong pressure-sensitive adhesive layer surface abuts and adheres to the adherend and cannot be peeled off again. If it is large, there is a problem that sufficient strong adhesion is not exhibited even if the pressing force is increased.
【０００８】しかし、弱粘着剤層同士の間隔を数ｍｍ以
下になるよう、貼着剤を塗工することは通常の粘着剤塗
工機では難しかった。一方、平行線状模様に、強弱２種
類の粘着剤を押出機で押出して芯材（支持体）にコーテ
ィングする方法も考えられるが、設備が複雑になるとい
う問題があった。However, it has been difficult for a normal pressure-sensitive adhesive coating machine to coat the adhesive so that the distance between the weak pressure-sensitive adhesive layers is several mm or less. On the other hand, a method of extruding two kinds of pressure-sensitive adhesives in a parallel line pattern with an extruder and coating the core material (support) can be considered, but there is a problem that equipment becomes complicated.
【０００９】また、上記特開平１−２２１４７８号公報
には、弱粘着剤粒子とそれよりも小径の強粘着剤粒子と
を芯材（支持体）に塗布することにより弱粘着剤を強粘
着剤よりも突出させる方法も提案されているが、このよ
うにして得られた粘着製品においては、押圧力を強くし
たとき、大径の弱粘着剤粒子がつぶれ、これが小径の強
粘着剤粒子を覆ってしまい、強粘着性を十分に発現する
ことができないという問題があった。Further, in Japanese Patent Application Laid-Open No. 1-2221478, the weak pressure-sensitive adhesive is prepared by applying weak pressure-sensitive adhesive particles and strong pressure-sensitive adhesive particles having a smaller diameter than the core material (support). However, in the pressure-sensitive adhesive product thus obtained, when the pressing force is increased, the large-diameter weak adhesive particles are crushed, which covers the small-diameter strong adhesive particles. Therefore, there is a problem that the strong adhesiveness cannot be sufficiently expressed.
【００１０】この発明は、上記の点に鑑み、微粘着性と
強粘着性とがそれぞれ確実に発現される粘着テープを提
供すること、及びそのような微粘着層を有する粘着テー
プを容易に製造し得る粘着テープの製造方法を提供する
ことを目的とする。In view of the above points, the present invention provides a pressure-sensitive adhesive tape that surely exhibits slight adhesiveness and strong adhesiveness, and easily manufactures an adhesive tape having such a slight adhesive layer. An object of the present invention is to provide a method for producing a pressure-sensitive adhesive tape that can be manufactured.
【００１１】[0011]
【課題を解決するための手段】この発明の微粘着層を有
する粘着テープは、支持体の少なくとも一面に強粘着剤
層が形成され、この強粘着剤層上に微球状粘着剤層が形
成されていることを特徴とするものであり、このような
粘着テープは、支持体の少なくとも一面に強粘着剤層を
形成し、この強粘着剤層面上に離型紙上に予め形成され
た微球状粘着剤層を重ね合わせ、離型紙上の微球状粘着
剤層を強粘着剤層上に転写することにより製造されるも
のである。A pressure-sensitive adhesive tape having a slight pressure-sensitive adhesive layer of the present invention has a strong pressure-sensitive adhesive layer formed on at least one surface of a support, and a fine spherical pressure-sensitive adhesive layer formed on the strong pressure-sensitive adhesive layer. Such a pressure-sensitive adhesive tape has a strong pressure-sensitive adhesive layer formed on at least one surface of a support, and a microspherical pressure-sensitive adhesive previously formed on a release paper on the strong pressure-sensitive adhesive layer surface. It is manufactured by stacking agent layers and transferring the fine spherical pressure-sensitive adhesive layer on the release paper onto the strong pressure-sensitive adhesive layer.
【００１２】この発明において、微球状粘着剤として
は、例えば、アルキル（メタ）アクリレートエステル単
量体をサスペンション重合して得られた平均粒径が数μ
ｍ〜数十μｍ程度の粘着性微小粒体（特開昭５４−４１
９８８号公報、特公昭５７−５７０９７号公報等参照）
があげられ、微球状粘着剤層は、粘着性微小粒体が近接
して単層に、すなわち略粒径の厚さに形成されているの
が好ましい。In the present invention, as the fine spherical pressure-sensitive adhesive, for example, an average particle diameter obtained by suspension polymerization of an alkyl (meth) acrylate ester monomer is several μm.
Adhesive fine particles of about m to several tens of μm (Japanese Patent Laid-Open No. 54-41)
(See Japanese Patent Publication No. 988, Japanese Patent Publication No. 57-57097, etc.)
In the fine spherical pressure-sensitive adhesive layer, it is preferable that the fine pressure-sensitive adhesive particles are formed in close proximity to each other to form a single layer, that is, a thickness of approximately the particle size.
【００１３】また、強粘着剤としては、アクリル系粘着
剤、ゴム系粘着剤などの溶剤型やエマルジョン型の粘着
剤があげられ、支持体への塗工厚さは、微球状粘着剤の
粒径より大であることが好ましい。The strong adhesive includes solvent-based and emulsion-based adhesives such as acrylic adhesives and rubber-based adhesives, and the coating thickness on the support is fine spherical adhesive particles. It is preferably larger than the diameter.
【００１４】[0014]
【作用】この発明の粘着テープにおいては、微球状粘着
剤層が強粘着剤層上に形成されているので、微球状粘着
剤が確実に強粘着剤層より突出されており、軽く押圧し
た時には微球状粘着剤だけが被着体に接して接着される
ことになって、再剥離可能に微粘着される。そして、被
着体に強く押圧すると、微球状粘着剤は、強粘着剤層に
埋没され、略表面全面にわたって強粘着剤が露出するこ
とになって、強く接着される。In the pressure-sensitive adhesive tape of the present invention, since the microspherical pressure-sensitive adhesive layer is formed on the strong pressure-sensitive adhesive layer, the microspherical pressure-sensitive adhesive surely protrudes from the strong pressure-sensitive adhesive layer, and when pressed lightly. Only the microspherical pressure-sensitive adhesive comes into contact with and adheres to the adherend, and is re-separable and slightly adhered. Then, when strongly pressed against the adherend, the microspherical pressure-sensitive adhesive is embedded in the strong pressure-sensitive adhesive layer, and the strong pressure-sensitive adhesive is exposed over substantially the entire surface, so that strong adhesion is achieved.
【００１５】また、この発明方法によれば、支持体の少
なくとも一面に強粘着剤層を形成するものであるから、
強粘着剤層は、従来の一般的な粘着剤の塗工方法と全く
変わらない方法が採用され、また、離型紙上に予め形成
された微球状粘着剤層を重ね合わせて微球状粘着剤を強
粘着剤層上に転写するものであるから、特別の塗工方法
や塗工装置を用いることなく、所定量の微球状粘着剤が
所定密度で、かつ強粘着剤層に埋没されることなく強粘
着剤層上に形成される。Further, according to the method of the present invention, since the strong pressure-sensitive adhesive layer is formed on at least one surface of the support,
The strong pressure-sensitive adhesive layer employs a method that is completely the same as the conventional general pressure-sensitive adhesive coating method.In addition, a fine-spherical pressure-sensitive adhesive layer is formed by stacking a fine-spherical pressure-sensitive adhesive layer previously formed on release paper. Since it is transferred onto the strong adhesive layer, no special coating method or coating device is used, and a predetermined amount of microspherical adhesive has a predetermined density and is not buried in the strong adhesive layer. It is formed on the strong adhesive layer.
【００１６】[0016]
【実施例】次に、この発明の実施例を説明する。図１
は、この発明の微粘着層を有する粘着テープ１の実施例
の断面図であり、１１は支持体、１２は強粘着剤層、１
３は微球状粘着剤層である。Embodiments of the present invention will be described below. Figure 1
1 is a cross-sectional view of an embodiment of an adhesive tape 1 having a slightly adhesive layer of the present invention, 11 is a support, 12 is a strong adhesive layer, 1
3 is a fine spherical pressure-sensitive adhesive layer.
【００１７】支持体１１としては、セロハン、クラフト
紙、軟質塩化ビニルフィルムや延伸ポリプロピレンなど
のプラスチックフィルムなどが適宜選択されて使用さ
れ、強粘着剤層１２としては、アクリル系粘着剤、ゴム
系粘着剤などの溶剤型やエマルジョン型の粘着剤などか
ら適宜選択されて塗工されており、この層の厚さは、微
球状粘着剤の粒径より大である３０〜５０μｍ程度とさ
れている。また、微球状粘着剤層１３は、アルキル（メ
タ）アクリレートエステル単量体をサスペンション重合
して得られた平均粒径が２０μｍ程度のアクリル系微球
状粘着剤から形成され、強粘着剤層１２上に球状体が互
いに近接してその大半部を露出して形成されている。な
お、２は離型紙であり、必要に応じて用いられる。この
粘着テープ１は巻芯に巻かれ、巻重体として保管、運搬
に供されるのが普通である。As the support 11, cellophane, kraft paper, plastic film such as soft vinyl chloride film or stretched polypropylene is appropriately selected and used, and as the strong adhesive layer 12, an acrylic adhesive or a rubber adhesive is used. It is appropriately selected from solvent-type adhesives such as agents and emulsion-type pressure-sensitive adhesives, and is applied. The thickness of this layer is about 30 to 50 μm, which is larger than the particle size of the fine spherical pressure-sensitive adhesives. The microspherical pressure-sensitive adhesive layer 13 is formed of an acrylic microspherical pressure-sensitive adhesive having an average particle size of about 20 μm obtained by suspension polymerization of an alkyl (meth) acrylate ester monomer, and is formed on the strong pressure-sensitive adhesive layer 12. The spheres are formed close to each other and most of the spheres are exposed. Reference numeral 2 is a release paper, which is used as necessary. The pressure-sensitive adhesive tape 1 is usually wound around a winding core and stored and transported as a wound body.
【００１８】このような粘着テープ１を製造する方法と
しては、図２に示すような方法が好適に採用される。図
２（イ）は、支持体１１に強粘着剤層１２を形成する方
法を示しており、支持体１１はその巻重体Ａから繰り出
され、コーター部Ｂに送られる。塗布ロールｂ1 、バッ
クアップロールｂ2 、貯液部ｂ3 などから構成されてい
るコーター部Ｂにおいて、貯液部ｂ3 に供給された強粘
着剤液は塗布ロールｂ1 によって支持体１１の上面に塗
工され、乾燥炉Ｃ内を通る間に乾燥され、強粘着剤層１
２が形成された支持体１１（以下、粘着シートというこ
とがある）が得られる。この粘着シートは巻重体Ｄとし
て巻き取られる。As a method of manufacturing such an adhesive tape 1, the method shown in FIG. 2 is preferably adopted. FIG. 2A shows a method of forming the strong pressure-sensitive adhesive layer 12 on the support 11. The support 11 is unrolled from the roll A and sent to the coater section B. In the coater section B composed of the coating roll b 1 , the backup roll b 2 , the liquid storage portion b 3, etc., the strong adhesive liquid supplied to the liquid storage portion b 3 is the upper surface of the support 11 by the coating roll b 1 . And dried while passing through the drying oven C to obtain a strong adhesive layer 1
A support 11 (hereinafter sometimes referred to as an adhesive sheet) on which 2 is formed is obtained. This adhesive sheet is wound up as a roll D.
【００１９】図２（ロ）は、離型紙２に微球状粘着剤層
１３を形成する方法を示しており、離型紙２はその巻重
体Ｅから繰り出され、コーター部Ｆに送られる。塗布ロ
ールｆ1 、バックアップロールｆ2 、貯液部ｆ3 などか
ら構成されているコーター部Ｆにおいて、貯液部ｆ3 に
供給された微球状粘着剤は塗布ロールｆ1 によって離型
紙２の上面に塗工され、乾燥炉Ｇ内を通る間に乾燥さ
れ、微球状粘着剤層１３が形成された離型紙２（以下、
転写シートということがある）が製造される。この転写
シートは巻重体Ｈとして巻き取られる。FIG. 2B shows a method of forming the microspherical pressure-sensitive adhesive layer 13 on the release paper 2. The release paper 2 is unwound from the roll E and sent to the coater section F. In the coater section F composed of the coating roll f 1 , the backup roll f 2 , the liquid storage portion f 3, etc., the fine spherical adhesive supplied to the liquid storage portion f 3 is applied to the upper surface of the release paper 2 by the coating roll f 1 . And the release paper 2 (hereinafter, referred to as a release paper) on which the fine spherical pressure-sensitive adhesive layer 13 is formed while being dried while passing through the drying oven G.
Transfer sheet). This transfer sheet is wound up as a wound body H.
【００２０】こうして得られた、粘着シートと転写シー
トとから、図２（ハ）に示すとおりの方法により、微粘
着層を有する粘着テープが製造される。すなわち、粘着
シートと転写シートとは、巻重体Ｄ及び巻重体Ｈからそ
れぞれ繰り出され、強粘着剤層１２側と微球状粘着剤層
１３とがそれぞれ内側になるようして転写装置Ｉに送ら
れる。転写装置Ｉにおいて、両者は重ね合わされ、転写
ロールｉ1 、ｉ2 、ｉ3 、ｉ4 により圧着されることに
より、微球状粘着剤層１３は強粘着剤層１２上に粘着し
て転写される。この結果、支持体１１に強粘着剤層１２
と微粘着層である微球状粘着剤層１３とがこの順に形成
された粘着テープ１が得られる。なお、この粘着テープ
１は必要に応じて輪切状に裁断される。また、図面の実
施例では、離型紙２は微球状粘着剤層１３から離されて
巻芯Ｊに巻き取られているが、このように巻き取ること
なく微粘着剤層１３上に残したまま粘着テープ１の離型
紙として利用することも可能である。From the pressure-sensitive adhesive sheet and the transfer sheet thus obtained, a pressure-sensitive adhesive tape having a slight pressure-sensitive adhesive layer is manufactured by the method as shown in FIG. That is, the pressure-sensitive adhesive sheet and the transfer sheet are respectively fed from the roll D and the roll H, and are sent to the transfer device I so that the strong pressure-sensitive adhesive layer 12 side and the fine spherical pressure-sensitive adhesive layer 13 are inside. .. In the transfer device I, the two are superposed and pressed by transfer rolls i 1 , i 2 , i 3 , i 4 to transfer the microspherical pressure-sensitive adhesive layer 13 to the strong pressure-sensitive adhesive layer 12 by adhesion. .. As a result, the strong adhesive layer 12 is formed on the support 11.
The pressure-sensitive adhesive tape 1 having the micro-spherical pressure-sensitive adhesive layer 13, which is a slight pressure-sensitive adhesive layer, formed in this order is obtained. In addition, this adhesive tape 1 is cut into a sliced shape if necessary. Further, in the embodiment shown in the drawings, the release paper 2 is separated from the microspherical pressure-sensitive adhesive layer 13 and wound around the core J. However, the release paper 2 remains on the slight pressure-sensitive adhesive layer 13 without being wound up in this way. It can also be used as a release paper for the adhesive tape 1.
【００２１】次に、前記の方法により微粘着層を有する
粘着テープを製造した具体例を説明する。具体例１ 支持体として、厚さ６０μｍの二軸延伸ポリプロピレン
フィルム（以下、ＯＰＰフィルムという）を使用し、強
粘着剤として、アクリル系粘着剤（綜研化学社製ＳＫダ
インＴＨ−５３５；１００重量部と、綜研化学社製ＳＫ
ダイン用硬化剤Ｍ５Ｓ；３重量部との混合物）を使用
し、図２（イ）に示す方法により、乾燥後アクリル系粘
着剤層４０μｍの粘着シートを作成した。Next, a specific example of producing an adhesive tape having a slight adhesive layer by the above method will be described. Specific Example 1 A 60 μm thick biaxially oriented polypropylene film (hereinafter referred to as OPP film) was used as a support, and an acrylic adhesive (SK Dyne TH-535 manufactured by Soken Chemical Co., Ltd .; 100 parts by weight) as a strong adhesive. And SK made by Soken Chemical Industry
A curing agent for dyne M5S; mixture with 3 parts by weight) was used to prepare a pressure-sensitive adhesive sheet having an acrylic pressure-sensitive adhesive layer of 40 μm after drying by the method shown in FIG.
【００２２】一方、離型紙として支持体と同じＯＰＰフ
ィルムを使用し、微球状粘着剤としてアクリル微球状粘
着剤（東洋インキ製造社製オリバインＢＰＷ−４０６
０）を使用し、図２（ロ）に示す方法により、乾燥後ア
クリル微球状粘着剤２０μｍの転写シートを作成した。On the other hand, the same OPP film as the support was used as the release paper, and an acrylic microsphere adhesive (Olivene BPW-406 manufactured by Toyo Ink Mfg. Co., Ltd.) was used as the microsphere adhesive.
2) was used to prepare a transfer sheet having an acrylic microspherical pressure-sensitive adhesive of 20 μm after drying.
【００２３】こうして得た粘着シート及び転写シートを
使用し、図２（ハ）に示す方法により、転写シートから
微球状粘着剤を強粘着剤層上に転写し、この発明の微粘
着層を有する粘着テープを製造した。Using the pressure-sensitive adhesive sheet and the transfer sheet thus obtained, the fine spherical pressure-sensitive adhesive is transferred from the transfer sheet onto the strong pressure-sensitive adhesive layer by the method shown in FIG. An adhesive tape was manufactured.
【００２４】この粘着テープの微粘着層は、顕微鏡でみ
ると、アクリル微球体が互いに近接して単層に形成され
ているものであった。そして、この粘着テープは、厚紙
に軽く圧着して接着した後の剥離が容易であり、繰り返
し使用が可能であった。また、粘着テープを厚紙に強く
押圧したところ、剥がすことができず無理に剥がすと厚
紙の表面を剥がれてしまい、強粘着性が発現しているこ
とが判明した。The micro-adhesive layer of this pressure-sensitive adhesive tape was one in which acrylic microspheres were formed in a single layer in close proximity to each other when viewed under a microscope. The pressure-sensitive adhesive tape was easy to peel off after being lightly pressure-bonded to thick paper and adhered, and could be repeatedly used. Further, it was found that when the pressure-sensitive adhesive tape was strongly pressed against the thick paper, it could not be peeled off, and if it was forcibly peeled off, the surface of the thick paper was peeled off, and strong adhesiveness was exhibited.
【００２５】具体例２ 支持体として、片面に２０μｍのポリエチレン層を設
け、その上にシリコン離型処理を施して離型面とした厚
さ１００μｍのクラフト紙を使用し、強粘着剤として、
ゴム系粘着剤（ムーニー粘度６０のペールクレープゴ
ム；１００重量部と、テルペン系樹脂９５重量部との混
合物とをトルエンに溶解したもの）を使用し、図２
（イ）に示す方法により、乾燥後ゴム系粘着剤層４０μ
ｍの粘着シートを作成した。 Concrete Example 2 As a support, a polyethylene layer having a thickness of 20 μm is provided on one side, and a 100 μm thick kraft paper is used as a release surface by subjecting it to a silicone release treatment.
A rubber-based pressure-sensitive adhesive (a pale crepe rubber having a Mooney viscosity of 60; a mixture of 100 parts by weight and 95 parts by weight of a terpene-based resin dissolved in toluene) was used.
According to the method shown in (a), 40 μm of the rubber-based adhesive layer after drying.
m adhesive sheet was prepared.
【００２６】一方、離型紙として両面シリコン離型処理
リリース紙を使用し、微球状粘着剤として具体例１と同
じアクリル微球状粘着剤を使用し、図２（ロ）に示す方
法により、乾燥後アクリル微球状粘着剤２０μｍの転写
シートを作成した。On the other hand, a double-sided silicone release treated release paper was used as the release paper, the same acrylic microsphere adhesive as in Example 1 was used as the microsphere adhesive, and after drying by the method shown in FIG. A transfer sheet having an acrylic microsphere adhesive of 20 μm was prepared.
【００２７】こうして得た粘着シート及び転写シートを
使用し、図２（ハ）に示す方法により、転写シートから
微球状粘着剤を強粘着剤層上に転写し、この発明の微粘
着層を有する粘着テープを製造した。Using the pressure-sensitive adhesive sheet and the transfer sheet thus obtained, the fine spherical pressure-sensitive adhesive is transferred from the transfer sheet onto the strong pressure-sensitive adhesive layer by the method shown in FIG. An adhesive tape was manufactured.
【００２８】この粘着テープの微粘着層は、顕微鏡でみ
ると、アクリル微球体が互いに近接して単層に形成され
ているものであった。そして、この粘着テープは、厚紙
に軽く圧着して接着した後の剥離が容易であり、繰り返
し使用が可能であった。また、粘着テープを厚紙に強く
押圧したところ、剥がすことができず無理に剥がすと厚
紙の表面を剥がれてしまい、強粘着性が発現しているこ
とが判明した。The micro-adhesive layer of this pressure-sensitive adhesive tape was such that the acrylic microspheres were formed in a single layer in close proximity to each other when viewed under a microscope. The pressure-sensitive adhesive tape was easy to peel off after being lightly pressure-bonded to thick paper and adhered, and could be repeatedly used. Further, it was found that when the pressure-sensitive adhesive tape was strongly pressed against the thick paper, it could not be peeled off, and if it was forcibly peeled off, the surface of the thick paper was peeled off, and strong adhesiveness was exhibited.
【００２９】具体例３ 支持体として、厚さ６０μｍのＯＰＰフィルムを使用
し、強粘着剤として、具体例２と同じゴム系粘着剤を使
用し、図２（イ）に示す方法により、乾燥後ゴム系粘着
剤層３０μｍの粘着シートを作成した。 Specific Example 3 An OPP film having a thickness of 60 μm was used as a support, the same rubber-based adhesive as in Specific Example 2 was used as a strong adhesive, and after drying by the method shown in FIG. An adhesive sheet having a rubber-based adhesive layer of 30 μm was prepared.
【００３０】一方、離型紙としてポリエステル（ＰＥ
Ｔ）フィルムを使用し、微球状粘着剤として具体例１と
同じアクリル微球状粘着剤を使用し、図２（ロ）に示す
方法により、乾燥後アクリル微球状粘着剤２０μｍの転
写シートを作成した。On the other hand, polyester (PE
T) A film was used, the same acrylic microsphere adhesive as in Example 1 was used as the microsphere adhesive, and a transfer sheet having an acrylic microsphere adhesive 20 μm after drying was prepared by the method shown in FIG. 2B. ..
【００３１】こうして得た粘着シート及び転写シートを
使用し、図２（ハ）に示す方法により、転写シートから
微球状粘着剤を強粘着剤層上に転写し、この発明の微粘
着層を有する粘着テープを製造した。Using the pressure-sensitive adhesive sheet and the transfer sheet thus obtained, the fine spherical pressure-sensitive adhesive is transferred from the transfer sheet onto the strong pressure-sensitive adhesive layer by the method shown in FIG. An adhesive tape was manufactured.
【００３２】この粘着テープの微粘着層は、顕微鏡でみ
ると、アクリル微球体が互いに近接して単層に形成され
ているものであった。そして、この粘着テープは、段ボ
ールに軽く圧着して接着した後の剥離が容易であり、繰
り返し使用が可能であった。また、粘着テープを段ボー
ルに強く押圧したところ、剥がすことができず無理に剥
がすと厚紙の表面を剥がれてしまい、強粘着性が発現し
ていることが判明した。The microadhesive layer of this adhesive tape was a microlayer of acrylic microspheres formed in close proximity to each other when viewed under a microscope. The pressure-sensitive adhesive tape was easy to peel off after being lightly pressure-bonded to the corrugated board and adhered, and could be used repeatedly. Further, when the pressure-sensitive adhesive tape was strongly pressed against the cardboard, it could not be peeled off, and if it was forcibly peeled off, the surface of the cardboard was peeled off, and it was revealed that strong adhesiveness was exhibited.
【００３３】以上の具体例からも推察されるように、こ
の発明の微粘着層を有する粘着テープは、被着体３に軽
く押圧して接着すると、図３（イ）に示すとおり、微球
状粘着剤層１３だけが被着体３に接して接着されて再剥
離可能に接着されることになり、被着体３に強く押圧し
て接着すると、図３（ロ）に示すとおり、微球状粘着剤
層１３は強粘着剤層１２中に埋没して全面に強粘着剤層
１３が露出して被着体３に接して強力に接着されること
になる。As can be inferred from the above specific examples, when the pressure-sensitive adhesive tape having the slight pressure-sensitive adhesive layer of the present invention is lightly pressed and adhered to the adherend 3, as shown in FIG. Only the pressure-sensitive adhesive layer 13 comes into contact with and adheres to the adherend 3 so that it can be re-separated. When the adhesive layer 13 is strongly pressed and adhered to the adherend 3, as shown in FIG. The pressure-sensitive adhesive layer 13 is buried in the strong pressure-sensitive adhesive layer 12, the strong pressure-sensitive adhesive layer 13 is exposed on the entire surface, and comes into contact with the adherend 3 to be strongly bonded.
【００３４】[0034]
【発明の効果】この発明の微粘着層を有する粘着テープ
は、以上述べたとおり、被着体に対する押圧力の強弱に
よって、微粘着性と強粘着性とがそれぞれ確実に発現で
き、仮止め用と本格的接着とに使い分けたり、被着体へ
の貼着位置を調整してから本格的に接着する等の用途に
好適に利用できる。As described above, the pressure-sensitive adhesive tape having the slight adhesive layer of the present invention can surely exhibit the slight adhesiveness and the strong adhesiveness depending on the strength of the pressing force against the adherend, and is for temporary fixing. It can be suitably used for applications such as full-fledged adhesion and full-scale adhesion after adjusting the attachment position to the adherend.
【００３５】また、この発明方法によれば、強粘着剤層
の形成にあたっては、従来の一般的な粘着剤の塗工方法
が採用でき、また、離型紙上に予め形成された微球状粘
着剤層を重ね合わせて微球状粘着剤を強粘着剤層上に転
写するものであるから、特別の塗工方法や塗工装置を用
いることなく、容易に微粘着層を形成できる。従って、
微粘着性と強粘着性とがそれぞれ確実に発現できる微粘
着層を有する粘着テープを容易に製造できる。Further, according to the method of the present invention, in forming the strong pressure-sensitive adhesive layer, a conventional general coating method of a pressure-sensitive adhesive can be adopted, and a fine spherical pressure-sensitive adhesive previously formed on the release paper. Since the microspherical pressure-sensitive adhesive is transferred onto the strong pressure-sensitive adhesive layer by superposing the layers, the micro-pressure-sensitive adhesive layer can be easily formed without using a special coating method or coating apparatus. Therefore,
It is possible to easily manufacture an adhesive tape having a slightly adhesive layer that can surely exhibit the slight adhesive property and the strong adhesive property.
【図１】この発明の微粘着層を有する粘着テープの実施
例の断面図である。FIG. 1 is a cross-sectional view of an example of an adhesive tape having a slightly adhesive layer of the present invention.
【図２】この発明の微粘着層を有する粘着テープの製造
方法を示す説明図であり、（イ）は、支持体１１に強粘
着剤層１２を形成する工程を示す説明図、（ロ）は、離
型紙２に微球状粘着剤１３を形成する工程を示す説明
図、（ハ）は、微粘着層を転写する工程を示す説明図で
ある。FIG. 2 is an explanatory view showing a method for producing an adhesive tape having a slight adhesive layer of the present invention, (a) an explanatory view showing a step of forming a strong adhesive layer 12 on a support 11, (b) FIG. 4A is an explanatory diagram showing a process of forming the microspherical pressure-sensitive adhesive 13 on the release paper 2, and (C) is an explanatory diagram showing a process of transferring the microadhesive layer.
【図３】この発明の微粘着層を有する粘着テープの使用
態様を示す断面図であり、（イ）は微粘着状態を示す断
面図、（ロ）は強接着状態を示す断面図である。FIG. 3 is a cross-sectional view showing a mode of use of the pressure-sensitive adhesive tape having a slight pressure-sensitive adhesive layer of the present invention, (A) is a cross-sectional view showing a slightly-adhesive state, and (B) is a cross-sectional view showing a strongly-bonded state.
１ 微粘着層を有する粘着テープ １１ 支持体 １２ 強粘着剤層 １３ 微粘着層（微球状粘着剤層） ２ 剥離紙 ３ 被着体 Ａ 支持体フィルムの巻重体 Ｂ、Ｆ 粘着剤塗工装置 Ｃ、Ｇ 乾燥炉 Ｄ 強粘着剤層が形成された支持体の巻重体 Ｅ 工程紙（剥離紙） Ｈ 微球状粘着剤層が形成された工程紙（剥離紙）の巻
重体 Ｉ 転写装置DESCRIPTION OF SYMBOLS 1 Adhesive tape having a slight adhesive layer 11 Support 12 Strong adhesive layer 13 Small adhesive layer (fine spherical adhesive layer) 2 Release paper 3 Adherent A Roll of support film B, F Adhesive coating device C , G Drying oven D Roll of support on which strong adhesive layer is formed E Process paper (release paper) H Roll of process paper (release paper) on which microsphere adhesive layer is formed I Transfer device
Claims (2)
形成され、この強粘着剤層上に微球状粘着剤層が形成さ
れていることを特徴とする微粘着層を有する粘着テー
プ。1. A pressure-sensitive adhesive tape having a slight pressure-sensitive adhesive layer, wherein a strong pressure-sensitive adhesive layer is formed on at least one surface of a support, and a fine spherical pressure-sensitive adhesive layer is formed on the strong pressure-sensitive adhesive layer.
形成し、この強粘着剤層面上に離型紙上に予め形成され
た微球状粘着剤層を重ね合わせ、離型紙上の微球状粘着
剤層を強粘着剤層上に転写することを特徴とする微粘着
層を有する粘着テープの製造方法。2. A strong pressure-sensitive adhesive layer is formed on at least one surface of a support, and a microspherical pressure-sensitive adhesive layer previously formed on a release paper is superposed on the surface of the strong pressure-sensitive adhesive layer to form a fine spherical pressure-sensitive adhesive on the release paper. A method for producing a pressure-sensitive adhesive tape having a slight pressure-sensitive adhesive layer, which comprises transferring an agent layer onto a strong pressure-sensitive adhesive layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3338523A JPH05171118A (en) | 1991-12-20 | 1991-12-20 | Tacky tape having fine tacky layer and its production |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3338523A JPH05171118A (en) | 1991-12-20 | 1991-12-20 | Tacky tape having fine tacky layer and its production |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH05171118A true JPH05171118A (en) | 1993-07-09 |
Family
ID=18318966
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3338523A Pending JPH05171118A (en) | 1991-12-20 | 1991-12-20 | Tacky tape having fine tacky layer and its production |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH05171118A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002091317A (en) * | 2000-09-13 | 2002-03-27 | Jt Prosprint Co Ltd | Easily sticking adhesive label and its manufacturing method |
| JP2005120184A (en) * | 2003-10-15 | 2005-05-12 | Sato Corp | Removable pressure-sensitive adhesive label and manufacturing method |
| JP2009042299A (en) * | 2007-08-06 | 2009-02-26 | Nitto Denko Corp | Optical waveguide film and manufacturing method thereof |
| JP2009064043A (en) * | 2008-12-11 | 2009-03-26 | Oji Tac Hanbai Kk | Removable pressure-sensitive adhesive sheet |
| JP2014070142A (en) * | 2012-09-28 | 2014-04-21 | Lintec Corp | Method for producing re-peelable adhesive sheet |
| JP2020094099A (en) * | 2018-12-11 | 2020-06-18 | リンテック株式会社 | Adhesive sheet |
-
1991
- 1991-12-20 JP JP3338523A patent/JPH05171118A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002091317A (en) * | 2000-09-13 | 2002-03-27 | Jt Prosprint Co Ltd | Easily sticking adhesive label and its manufacturing method |
| JP2005120184A (en) * | 2003-10-15 | 2005-05-12 | Sato Corp | Removable pressure-sensitive adhesive label and manufacturing method |
| JP4493971B2 (en) * | 2003-10-15 | 2010-06-30 | 株式会社サトー | Method for producing releasable adhesive label |
| JP2009042299A (en) * | 2007-08-06 | 2009-02-26 | Nitto Denko Corp | Optical waveguide film and manufacturing method thereof |
| JP2009064043A (en) * | 2008-12-11 | 2009-03-26 | Oji Tac Hanbai Kk | Removable pressure-sensitive adhesive sheet |
| JP2014070142A (en) * | 2012-09-28 | 2014-04-21 | Lintec Corp | Method for producing re-peelable adhesive sheet |
| JP2020094099A (en) * | 2018-12-11 | 2020-06-18 | リンテック株式会社 | Adhesive sheet |
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