JPH0748551A - Pressure-sensitive adhesive tape or sheet - Google Patents
Pressure-sensitive adhesive tape or sheetInfo
- Publication number
- JPH0748551A JPH0748551A JP19334293A JP19334293A JPH0748551A JP H0748551 A JPH0748551 A JP H0748551A JP 19334293 A JP19334293 A JP 19334293A JP 19334293 A JP19334293 A JP 19334293A JP H0748551 A JPH0748551 A JP H0748551A
- Authority
- JP
- Japan
- Prior art keywords
- chain alkyl
- pressure
- long
- sensitive adhesive
- release agent
- 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】本発明は、除塵用、表面保護用、
メモ用紙パッド等の文具用、床ライン引き等の表示用、
養生用その他の用途に用いて好適な粘着テープもしくは
シートに関する。BACKGROUND OF THE INVENTION The present invention relates to dust removal, surface protection,
For stationery such as memo pad, display for floor line drawing,
The present invention relates to an adhesive tape or sheet suitable for curing and other uses.
【０００２】[0002]
【従来の技術】一般に汎用されている粘着テープもしく
はシートの中には、粘着剤の粘着性を比較的低めにし
て、除塵用、表面保護用、メモ用紙パッド等の文具用、
床ライン引き等の表示用、養生用等の広範囲の用途に活
用されているものがある。これらの用途では再剥離性が
良好（＝微粘着性）であり、接着対象物から剥離後再び
他の接着対象物に容易に接着させることが要求される。
従って、このような用途に使用される粘着剤は、再剥離
性に優れたものでなければならない。2. Description of the Related Art Among commonly used adhesive tapes or sheets, the adhesiveness of the adhesive is made relatively low to remove dust, surface protection, stationery such as memo paper pads,
Some are used for a wide range of purposes such as floor line drawing and other indications and curing. In these applications, removability is good (= slightly tacky), and it is required that after peeling from an object to be adhered, it is easily adhered to another object to be adhered again.
Therefore, the pressure-sensitive adhesive used for such applications must have excellent removability.
【０００３】つまり、接着対象物に強く押しつけて接着
させたときにも接着力がそれほど上昇せず、経時によっ
ても接着力がそれほど上昇しない為比較的小さい力で剥
離され得ることが望まれる。更に、経時により再剥離し
た際に、所謂“糊残り”のないことも要求される。That is, the adhesive force does not increase so much even when it is strongly pressed against the object to be adhered, and the adhesive force does not increase so much over time, so that it is desired that peeling can be performed with a relatively small force. Furthermore, it is also required that there be no so-called "paste residue" when re-peeling over time.
【０００４】[0004]
【本発明が解決しようとする課題】従って、粘着剤とし
ては通常の絶縁用テープや包装用テープ等に採用されて
いるものとは異なり、特殊の粘着剤（以下再剥離性粘着
剤という）を用いる必要がある。この点に関して今まで
に多くの研究がなされており、本出願人が先に開発した
表面保護用フイルムもその一つである（特開平１−１２
９０８５号公報参照）。この表面保護用フイルムに使用
している粘着剤成分は、汎用の粘着剤成分中に剥離性物
質を配合したもので、経時粘着性や高温経時粘着性の昂
進が少なく、糊残りが発生しない点で優れたものであ
る。Therefore, as a pressure-sensitive adhesive, a special pressure-sensitive adhesive (hereinafter referred to as "removable pressure-sensitive adhesive") is used as a pressure-sensitive adhesive, which is different from those used in ordinary insulating tapes, packaging tapes and the like. Must be used. A lot of research has been done so far on this point, and the film for surface protection developed by the present applicant is one of them (Japanese Patent Laid-Open No. 1-12).
9085). The pressure-sensitive adhesive component used in this surface protection film is a general-purpose pressure-sensitive adhesive component blended with a peelable substance, and there is little increase in the adhesiveness with time or the adhesiveness with time at high temperature, and no adhesive residue occurs. It is an excellent one.
【０００５】しかしながら、従来の再剥離性粘着剤は上
記公報に記載されたものも含めて、汎用の粘着剤とはそ
の配合成分を異にする為に、一般的に材料費が嵩む傾向
にあり、更に、材料供給設備、配合タンク、攪拌機、配
管、テープ製造設備における原料槽等の製造設備一切は
別途に用意するか、或いは同じ設備を使用するのであれ
ば、多大の時間と経費をかけて掃除する必要がある。ま
た更に、原料配合工程、粘着テープの製造工程等の各工
程管理に於ける設定条件や操作も異なるので、作業者が
完全に技術習熟するまでに時間がかかり、総じて設備
費、製造費も嵩むという問題があった。However, the conventional removable adhesives, including those described in the above publications, have different compounding components from those of general-purpose adhesives, so that the material cost generally tends to increase. In addition, the material supply equipment, blending tank, stirrer, piping, raw material tank in the tape manufacturing equipment, and other manufacturing equipment must be prepared separately, or if the same equipment is used, it will take a great deal of time and money. Need to be cleaned. Furthermore, since the setting conditions and operations in each process control such as the raw material blending process and the adhesive tape manufacturing process are different, it takes time for the operator to fully master the technique, and the equipment cost and the manufacturing cost generally increase. There was a problem.
【０００６】本発明は、再剥離性粘着剤を用いた粘着テ
ープもしくはシートにおける上記従来技術の欠点を解消
し、原料費、設備費、製造費が安価に済む粘着テープも
しくはシートを提供することを目的としてなされたもの
である。The present invention solves the above-mentioned drawbacks of the prior art in an adhesive tape or sheet using a removable adhesive, and provides an adhesive tape or sheet in which raw material cost, equipment cost, and manufacturing cost are low. It was done for the purpose.
【０００７】[0007]
【課題を解決するための手段】本発明は、「基材の一面
に、平均重合度３００以下の長鎖アルキル基含有剥離剤
からなる剥離剤層が形成され、他面には粘着剤層が形成
されてなることを特徴とする粘着テープもしくはシー
ト」をその要旨とするものである。According to the present invention, "a release agent layer composed of a release agent containing a long chain alkyl group having an average degree of polymerization of 300 or less is formed on one surface of a base material, and a pressure-sensitive adhesive layer is provided on the other surface. The gist of the present invention is an adhesive tape or sheet characterized by being formed.
【０００８】即ち、通常の粘着テープの汎用剥離剤の一
つであるところの、長鎖アルキル基含有の剥離剤が具有
する粘着剤層への移行性（ブリードアウト性）を利用し
て、粘着剤層の接着対象物に対する経時による接着力の
昂進を抑え、以て該粘着剤に初期接着性、再剥離性を経
時により自然に発現させるようにしたことを狙いとした
ものである。That is, by utilizing the transferability (bleed-out property) to the pressure-sensitive adhesive layer of the long-chain alkyl group-containing release agent, which is one of the general-purpose release agents for ordinary pressure-sensitive adhesive tapes, The purpose of the present invention is to prevent the adhesive force of the adhesive layer from adhering to the object to be adhered with the passage of time so that the adhesive may naturally exhibit initial adhesiveness and removability with the passage of time.
【０００９】本発明に於いて用いる長鎖アルキル基含有
の剥離剤としては、長鎖アルキルビニルエステル共重合
体、長鎖アルキルアマイド共重合体、マレイン酸の長鎖
アルキル誘導体の共重合体、長鎖アルキルアリルエステ
ル共重合体、各種ポリマーのアルキルカルバメート、長
鎖アルキル化合物と各種ポリマーとの混合物等剥離剤と
して一般的に用いられているものが挙げられる。Examples of the long-chain alkyl group-containing release agent used in the present invention include long-chain alkyl vinyl ester copolymers, long-chain alkyl amide copolymers, long-chain alkyl derivative copolymers of maleic acid, and long-chain alkyl derivatives. Examples thereof include those generally used as release agents such as chain alkyl allyl ester copolymers, alkyl carbamates of various polymers, and mixtures of long chain alkyl compounds with various polymers.
【００１０】そして、本発明で用いる長鎖アルキル基含
有の剥離剤は、その形態が水分散液であっても、有機溶
剤溶液であってもよいが、好ましくは水分散液とする。
水分散液の場合は、水分散液中の乳化剤とともに、ポリ
マーの低分子量物が粘着剤層に移行するものと推測され
る。また、この剥離剤を構成するポリマーの平均重合度
としては、３００以下のものを使用する必要があり、３
００を超えるものは、ブリードアウト性に乏しい。The form of the long-chain alkyl group-containing stripping agent used in the present invention may be an aqueous dispersion or an organic solvent solution, but is preferably an aqueous dispersion.
In the case of an aqueous dispersion, it is presumed that the low molecular weight polymer is transferred to the pressure-sensitive adhesive layer together with the emulsifier in the aqueous dispersion. Further, the average degree of polymerization of the polymer constituting the release agent must be 300 or less, and 3
Those exceeding 00 have poor bleed-out properties.
【００１１】しかして、水分散液を得る方法としては、
水を分散媒として直接重合する乳化重合法、有機溶剤を
溶媒として溶液重合したものを一旦乾燥して固形物とし
た後、これを水を分散媒として分散する後乳化法、有機
溶剤を溶媒として溶液重合したものに水を加えて分散さ
せた後、有機溶剤を除去する置換法等により得ることが
できる。Thus, as a method for obtaining an aqueous dispersion,
Emulsion polymerization method in which water is directly polymerized as a dispersion medium, a solution-polymerized product obtained by using an organic solvent as a solvent is once dried into a solid, and then a post-emulsification method in which water is dispersed as a dispersion medium, using an organic solvent as a solvent. It can be obtained by a substitution method or the like in which water is added to the solution-polymerized product to disperse it and then the organic solvent is removed.
【００１２】これらの剥離剤の基材に対する塗布量とし
ては、固形分で０．０１〜１．０ｇ／ｍ2 の範囲とする
のが好ましい。塗布量が０．０１ｇ／ｍ2 に満たない場
合は、剥離剤としての本来の効果が得られず、１．０ｇ
／ｍ2 を超えるとコスト的に不利となる傾向にある。The amount of these release agents applied to the substrate is preferably in the range of 0.01 to 1.0 g / m 2 in terms of solid content. If the coating amount is less than 0.01 g / m 2 , the original effect as a release agent cannot be obtained, and 1.0 g
If it exceeds / m 2 , the cost tends to be disadvantageous.
【００１３】本発明に用いる粘着剤としては、一般に使
用されているものがそのまま採用可能であって、天然も
しくは合成ゴム、アクリル等の合成樹脂等を主材とする
溶剤系粘着剤やエマルジョン系粘着剤、ホットメルトの
ような無溶剤系のものも任意に使用できる。そして、必
要に応じて主材の他に粘着性付与樹脂、充填剤、軟化
剤、老化防止剤等の添加剤を配合したものを用いること
ができる。As the pressure-sensitive adhesive used in the present invention, those which are generally used can be employed as they are, and solvent-based pressure-sensitive adhesives or emulsion-based pressure-sensitive adhesives whose main material is natural or synthetic rubber, synthetic resin such as acryl, etc. A solvent-free agent such as an agent or hot melt can be optionally used. Then, if necessary, in addition to the main material, an additive such as a tackifying resin, a filler, a softening agent, and an anti-aging agent may be blended.
【００１４】本発明に用いる基材としても一般に使用さ
れているものがそのまま採用可能であって、例えば、ポ
リオレフィン系樹脂がラミネートされたクラフト紙、ポ
リオレフィン系、ポリエステル系等の合成樹脂製フイル
ム、セロハンフイルム、スフや合成繊維からなる織布も
しくは不織布が挙げられる。As the base material used in the present invention, those generally used can be used as they are. For example, a polyolefin resin laminated kraft paper, a polyolefin resin film, a polyester resin film, or cellophane. A woven or non-woven fabric made of a film, a staple fiber or a synthetic fiber can be used.
【００１５】本発明の粘着テープの巻重体の製品形態と
しては、除塵用に使用する場合は、粘着剤層を外側にし
た形態を採るが、他の用途の場合は、一般の接着テープ
と同様に、剥離剤層を外側にして巻き取る。また、その
複数枚が、剥離剤層と粘着剤層とを接するようにして積
層されていてもよく、一方の端に位置するシートは粘着
剤層が剥き出しになるので、適宜剥離シートのみを貼着
する。As the product form of the rolled body of the adhesive tape of the present invention, when it is used for dust removal, the adhesive layer is on the outside, but for other uses, it is the same as a general adhesive tape. Then, the release agent layer is placed outside and wound up. Further, a plurality of sheets may be laminated so that the release agent layer and the pressure-sensitive adhesive layer are in contact with each other, and since the pressure-sensitive adhesive layer is exposed in the sheet located at one end, only the release sheet is appropriately attached. To wear.
【００１６】[0016]
【作用】本発明の粘着テープもしくはシートは、基材の
一面に長鎖アルキル基含有剥離剤の水分散液、或いは平
均重合度が３００以下の長鎖アルキル基含有剥離剤が塗
布されて剥離剤層が形成され、他面には粘着剤層が形成
されており、且つ剥離剤層と粘着剤層とが接するように
して巻重体となっているか又は積層されているので、経
時により剥離剤が粘着剤層に移行し、適度の再剥離性が
付与されたものとなる。The pressure-sensitive adhesive tape or sheet of the present invention is prepared by applying an aqueous dispersion of a long-chain alkyl group-containing release agent or a long-chain alkyl group-containing release agent having an average degree of polymerization of 300 or less to one surface of a base material. Since the layer is formed and the pressure-sensitive adhesive layer is formed on the other surface, and the release agent layer and the pressure-sensitive adhesive layer are in contact with each other to form a wound body or laminated, the release agent may be removed with time. It is transferred to the pressure-sensitive adhesive layer and is given a proper removability.
【００１７】[0017]
【実施例】以下、本発明の実施例について詳細に説明す
る。EXAMPLES Examples of the present invention will be described in detail below.
【００１８】実施例１．基材として、未晒クルパックク
ラフト紙（坪量７５ｇ／ｍ2 ）を芯材とし、その両面に
片面厚さが２０μｍのポリエチレンラミネート層を形成
したものを使用した。そして、その基材の一面に、平均
重合度１００のポリエチレンイミンのオクタデシルイソ
シアネート付加物の水分散体からなる剥離剤を、固形分
にして０．３ｇ／ｍ2 の割合で塗布・乾燥して剥離剤層
を形成した。また、他面には、スチレン−イソプレン−
スチレンのブロック共重合体を主成分としたホットメル
ト系粘着剤を、固形分にして５０ｇ／ｍ2 の割合で塗布
・乾燥して粘着剤層を形成し、粘着剤層を内側にして巻
重体とした。 Example 1 As the base material, unbleached Kurupack kraft paper (basis weight: 75 g / m 2 ) was used as a core material, and a polyethylene laminate layer having a thickness of 20 μm on one side was formed on both surfaces of the core material. Then, a release agent comprising an aqueous dispersion of an octadecyl isocyanate adduct of polyethyleneimine with an average degree of polymerization of 100 was applied to one surface of the base material at a solid content of 0.3 g / m 2 and dried to release. The agent layer was formed. On the other side, styrene-isoprene-
A hot-melt pressure-sensitive adhesive containing a styrene block copolymer as a main component is applied at a solid content of 50 g / m 2 and dried to form a pressure-sensitive adhesive layer. And
【００１９】比較例 剥離剤として、平均重合度１０００のポリエチレンイミ
ンのオクタデシルイソシアネート付加物の、トルエン溶
液を用いたこと以外は実施例１と同様にして粘着テープ
巻重体を得た。 Comparative Example A pressure sensitive adhesive tape roll was obtained in the same manner as in Example 1 except that a toluene solution of an octadecyl isocyanate adduct of polyethyleneimine having an average degree of polymerization of 1000 was used as a release agent.
【００２０】実施例２．平均重合度２００のポリエチレ
ンイミンのオクタデシルイソシアネート付加物のトルエ
ン溶液を用いたこと以外は実施例１と同様にして巻重体
を得た。 Example 2 A wound body was obtained in the same manner as in Example 1 except that a toluene solution of an octadecyl isocyanate adduct of polyethyleneimine having an average degree of polymerization of 200 was used.
【００２１】次に、上記各実施例及び比較例で得られた
巻重体を、常温下で１週間放置した後の、タック、ＳＰ
粘着力、展開力、糊残りの有無、再剥離性について評価
試験を行い、その結果を表１に示す。Next, the wound body obtained in each of the above-mentioned Examples and Comparative Examples was allowed to stand at room temperature for 1 week, and then tack and SP
An evaluation test was conducted on the adhesive force, spreading force, presence or absence of adhesive residue, and removability, and the results are shown in Table 1.
【００２２】[0022]
【表１】 [Table 1]
【００２３】但し、各測定項目についての測定方法は次
の通りである。 ．タック；１／３２インチの直径の鋼球を使用し、２
０℃でＪ．Ｄｏｗ法のボールタック試験法に準じて測定
する。 ．ＳＰ粘着力；ステンレススチール板に幅１５ｍｍの
粘着テープを貼着し、２Ｋｇのゴムロールを１往復して
押圧し、１５分後に１８０°ピーリングしてその強度を
測定する。 ．展開力；引張試験機を使用し、一方のチャックに５
０ｍｍ幅の巻重体を装着し、１０±２ ｍ／分の速度で
巻き戻し、その時の強度を測定する。 ．糊残りの有無；２５ｍｍ（幅）×１００ｍｍ（長
さ）のテープを合板に貼着したものについて、１週間経
過後に、静かに剥がして合板表面への糊残りの有無を目
視により観察する。○＝糊残り無し、×＝糊残り有り。 ．再剥離性；２５ｍｍ（幅）×１００ｍｍ（長さ）の
テープを木製床板に貼着し、２４時間経過後にテープを
静かに剥がして、テープの粘着剤層、基材共に層割れ等
生ずることなく綺麗に剥離出来たか否かを目視により観
察する。○＝接着対象物に何も残らなかった、×＝床面
に粘着剤層、又は粘着剤層と紙の一部が残った。However, the measuring method for each measuring item is as follows. ． Tack; using steel balls of 1/32 inch diameter, 2
J. at 0 ° C. It is measured according to the ball tack test method of the Dow method. ． SP adhesive strength: An adhesive tape having a width of 15 mm is attached to a stainless steel plate, and a 2 Kg rubber roll is pressed back and forth once, and after 15 minutes, 180 ° peeling is performed to measure the strength. ． Deploying force: Using a tensile tester, 5 on one chuck
A wound body having a width of 0 mm is attached, and rewinding is performed at a speed of 10 ± 2 m / min, and the strength at that time is measured. ． Presence or absence of adhesive residue: About 25 mm (width) x 100 mm (length) tape adhered to a plywood, after one week, it is gently peeled off and visually observed for adhesive residue on the surface of the plywood. ○ = no adhesive residue, × = adhesive residue ． Removability: 25 mm (width) x 100 mm (length) tape is attached to a wooden floor board, and after 24 hours, the tape is gently peeled off without causing layer breakage or the like on both the adhesive layer and the base material of the tape. Visually observe whether or not the peeling has been completed successfully. ◯ = Nothing remained on the object to be bonded, X = The pressure-sensitive adhesive layer, or a part of the pressure-sensitive adhesive layer and the paper remained on the floor surface.
【００２４】[0024]
【発明の効果】本発明の粘着テープもしくはシートは、
基材の一面に、平均重合度が３００以下の長鎖アルキル
基含有剥離剤が塗布されて剥離剤層が形成され、他面に
は粘着剤層が形成されているので、剥離剤層と粘着剤層
とが接するようにして巻重体とされるか又は積層された
場合、経時により剥離剤が粘着剤層に移行し、適度の再
剥離性が付与されたものとなる。The adhesive tape or sheet of the present invention is
The long-chain alkyl group-containing release agent having an average degree of polymerization of 300 or less is applied to one surface of the base material to form a release agent layer, and the adhesive layer is formed on the other surface. When it is formed into a rolled body or laminated so as to be in contact with the agent layer, the release agent migrates to the pressure-sensitive adhesive layer with the passage of time, and a suitable re-release property is imparted.
【００２５】従って、粘着剤は従来の一般用粘着テープ
に使用されている粘着剤そのものであるから、格別の設
備を整える必要がなく、また材料費が嵩むわけではな
く、また更に工程管理にも変更を加える必要がないの
で、原料費、設備費、製造費共に安価である。Therefore, since the pressure-sensitive adhesive is the pressure-sensitive adhesive itself used in the conventional pressure-sensitive adhesive tapes for general use, it is not necessary to prepare special equipment, the material cost is not increased, and further the process control is required. Since there is no need to make changes, raw material costs, equipment costs, and manufacturing costs are low.
Claims (1)
長鎖アルキル基含有剥離剤からなる剥離剤層が形成さ
れ、他面には粘着剤層が形成されてなることを特徴とす
る粘着テープもしくはシート。1. A release agent layer made of a release agent containing a long-chain alkyl group having an average degree of polymerization of 300 or less is formed on one surface of the substrate, and an adhesive layer is formed on the other surface. Adhesive tape or sheet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19334293A JPH0748551A (en) | 1993-08-04 | 1993-08-04 | Pressure-sensitive adhesive tape or sheet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19334293A JPH0748551A (en) | 1993-08-04 | 1993-08-04 | Pressure-sensitive adhesive tape or sheet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0748551A true JPH0748551A (en) | 1995-02-21 |
Family
ID=16306306
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19334293A Pending JPH0748551A (en) | 1993-08-04 | 1993-08-04 | Pressure-sensitive adhesive tape or sheet |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0748551A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0769693A1 (en) | 1995-10-20 | 1997-04-23 | Ngk Insulators, Ltd. | Method and sensing device for measuring predetermined gas component in measurement gas |
| EP0769694A1 (en) | 1995-10-20 | 1997-04-23 | Ngk Insulators, Ltd. | NOx sensor and method of measuring NOx |
| JP2008265308A (en) * | 2007-03-22 | 2008-11-06 | Japan Polypropylene Corp | Propylene resin film for surface protection |
| JP2009196334A (en) * | 2007-03-22 | 2009-09-03 | Japan Polypropylene Corp | Film for surface protection |
| JP2009208416A (en) * | 2008-03-06 | 2009-09-17 | Japan Polypropylene Corp | Propylene resin film for surface protection |
| JP2013040272A (en) * | 2011-08-15 | 2013-02-28 | Nitto Denko Corp | Adhesive tape wound body |
-
1993
- 1993-08-04 JP JP19334293A patent/JPH0748551A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0769693A1 (en) | 1995-10-20 | 1997-04-23 | Ngk Insulators, Ltd. | Method and sensing device for measuring predetermined gas component in measurement gas |
| EP0769694A1 (en) | 1995-10-20 | 1997-04-23 | Ngk Insulators, Ltd. | NOx sensor and method of measuring NOx |
| JP2008265308A (en) * | 2007-03-22 | 2008-11-06 | Japan Polypropylene Corp | Propylene resin film for surface protection |
| JP2008265307A (en) * | 2007-03-22 | 2008-11-06 | Japan Polypropylene Corp | Propylene rein film for surface protection |
| JP2009196334A (en) * | 2007-03-22 | 2009-09-03 | Japan Polypropylene Corp | Film for surface protection |
| JP2009208416A (en) * | 2008-03-06 | 2009-09-17 | Japan Polypropylene Corp | Propylene resin film for surface protection |
| JP2013040272A (en) * | 2011-08-15 | 2013-02-28 | Nitto Denko Corp | Adhesive tape wound body |
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