JPH09137136A - Double-coated adhesive tape and its processing method - Google Patents
Double-coated adhesive tape and its processing methodInfo
- Publication number
- JPH09137136A JPH09137136A JP7295240A JP29524095A JPH09137136A JP H09137136 A JPH09137136 A JP H09137136A JP 7295240 A JP7295240 A JP 7295240A JP 29524095 A JP29524095 A JP 29524095A JP H09137136 A JPH09137136 A JP H09137136A
- Authority
- JP
- Japan
- Prior art keywords
- double
- adhesive tape
- sided adhesive
- release liner
- cut
- 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]
【発明の属する技術分野】本発明は、両面接着テープ及
びその加工方法に関する。さらに詳しくは、両面接着テ
ープをハーフカット加工した後に、切込み線の部分で粘
着剤同士が再接着しない、ハーフカット加工後の品質安
定性に優れた両面接着テープ及びその加工方法に関する
ものである。TECHNICAL FIELD The present invention relates to a double-sided adhesive tape and a method for processing the same. More specifically, the present invention relates to a double-sided adhesive tape which is excellent in quality stability after half-cutting, in which the pressure-sensitive adhesives are not re-adhered to each other at a score line after half-cutting the double-sided adhesive tape, and a processing method thereof.
【０００２】[0002]
【従来の技術】両面接着テープは、使い易さ、接着力の
信頼性等の点から物品間の接合手段として広く利用され
ている。通常、両面接着テープを使用して物品を固定す
る時には、あらかじめ、物品の接着部分の形状に合わせ
て両面接着テープを切断（プレカット）して使用するこ
とが多い。また、両面接着テープの貼り合せ作業を自動
化ラインにて行っている場合においては、あらかじめ、
所定形状に切断加工された両面接着テープを使用するこ
とがある。かかる用途に使用される両面接着テープとし
ては、両粘着剤層が別々の剥離ライナで被覆された両面
接着テープを使用することが多い。このような両面接着
テープを所定形状に切断加工する方法としては、１）両
粘着剤層を被覆している２枚の剥離ライナと両面接着テ
ープ層を一度に切断する方法（以下、打ち抜き加工と称
す）、２）一方の粘着剤層を被覆している剥離ライナと
両面接着テープ層のみに所定形状の切込み線を入れ、他
方の剥離ライナを、切断加工された両面接着テープ部材
の台紙として使用する方法（以下、ハーフカット加工と
称す）がある。2. Description of the Related Art Double-sided adhesive tapes are widely used as means for joining articles in terms of ease of use and reliability of adhesive strength. Usually, when fixing an article using a double-sided adhesive tape, the double-sided adhesive tape is often cut (precut) in advance according to the shape of the adhesive portion of the article before use. Also, if you are performing the bonding work of double-sided adhesive tape on an automated line,
A double-sided adhesive tape cut into a predetermined shape may be used. As the double-sided adhesive tape used for such an application, a double-sided adhesive tape in which both pressure-sensitive adhesive layers are covered with separate release liners is often used. As a method of cutting such a double-sided adhesive tape into a predetermined shape, 1) a method of cutting two release liners covering both pressure-sensitive adhesive layers and the double-sided adhesive tape layer at once (hereinafter referred to as punching and 2) A cut line having a predetermined shape is formed only in the release liner covering one adhesive layer and the double-sided adhesive tape layer, and the other release liner is used as a mount for the cut double-sided adhesive tape member. There is a method (hereinafter, referred to as half-cut processing).
【０００３】しかしながら、１）の打抜き加工では、所
定形状に切断された両面接着テープ部材は１枚１枚がバ
ラバラとなり、自動化ラインへの供給が困難であるこ
と、また、打抜き加工された両面接着テープ部材の形状
が小さいと、貼り付け時、剥離ライナを除去することが
困難であるという問題がある。However, in the punching process of 1), the double-sided adhesive tape members cut into a predetermined shape are scattered one by one, and it is difficult to supply them to the automation line, and the punched double-sided adhesive tape members are used. If the shape of the tape member is small, it is difficult to remove the release liner during attachment.
【０００４】一方、２）のハーフカット加工の場合、両
面接着テープに所定形状の切断加工を施し、切込み線が
入れられた後も、両面接着テープ部材は、切断加工され
ていない剥離ライナ（台紙）上に保持されるため、打抜
き加工のように、両面接着テープ部材の１枚１枚がバラ
バラになることがない。さらに、連続的にハーフカット
加工された両面接着テープ部材は、台紙として使用され
る剥離ライナ上で保持された状態で巻き芯等に巻回する
ことができるため、両面接着テープ部材を連続的に供給
することが容易になることから、自動化ラインにおいて
はハーフカット加工された両面接着テープが多用されて
いる。On the other hand, in the case of 2) half-cut processing, even after the double-sided adhesive tape is cut into a predetermined shape and a score line is formed, the double-sided adhesive tape member is a release liner (mounting paper) which is not cut. ), The double-sided adhesive tape members do not come apart from each other unlike the punching process. Furthermore, since the double-sided adhesive tape member that has been continuously half-cut can be wound around a winding core or the like while being held on a release liner used as a mount, the double-sided adhesive tape member can be continuously formed. Since it can be easily supplied, half-cut double-sided adhesive tape is often used in automated lines.
【０００５】しかしながら、ハーフカット加工の問題点
として、ハーフカット加工された両面接着テープ部材同
士が、時間の経過と共に粘着剤の流動現象によって、そ
の切込み線の部分で再接着し、使用時、両面接着テープ
部材を切込み線の部分で剥がす時に、一枚づつきれいに
剥離することができず、部材同士が複数枚が連なった状
態で剥離されてしまい、自動貼り合わせ機で作業を行な
う場合にトラブルが発生しやすいという問題があった。
また、ハーフカット加工された両面接着テープの切込み
部における再接着を防止する為に、ハーフカット加工
後、貼り付けに使用する両面接着テープ部材以外の両面
接着テープ部材（以後、不要部と称す）を自動的に除去
する方法があるが、製造工程が複雑化することや、歩留
りの点から最終製品のコストアップにつながり、さらに
不要部の面積が非常に小さい場合、不要部を自動的に除
去する事は困難であった。However, as a problem of the half-cut processing, the half-cut processed double-sided adhesive tape members are re-bonded to each other at the cut line portion due to the flow phenomenon of the pressure-sensitive adhesive with the passage of time. When peeling off the adhesive tape member at the score line part, it could not be peeled off one by one, and the members were peeled off in a state where multiple sheets were connected, causing trouble when working with an automatic bonding machine. There was a problem that it was likely to occur.
Further, in order to prevent re-adhesion in the cut portion of the half-cut double-sided adhesive tape, a double-sided adhesive tape member other than the double-sided adhesive tape member used for pasting after the half-cut processing (hereinafter referred to as an unnecessary portion) Although there is a method to automatically remove unnecessary parts, the manufacturing process is complicated and the cost of the final product increases from the viewpoint of yield, and if the unnecessary part area is very small, the unnecessary part is automatically removed. It was difficult to do.
【０００６】[0006]
【発明が解決しようとする課題】本発明は、上記従来の
事情に鑑み、ハーフカット加工された両面接着テープに
おいて、加工後の切込み線の部分における粘着剤同士の
再接着を防止し、使用時、台紙である剥離ライナ上から
所定形状に切断された両面接着テープ部材を容易に剥離
することができる、ハーフカット加工後の品質安定性に
優れた両面接着テープ及びその加工方法を提供すること
を目的としている。SUMMARY OF THE INVENTION In view of the above-mentioned conventional circumstances, the present invention, in a half-cut double-sided adhesive tape, prevents re-adhesion of the pressure-sensitive adhesives at the cut line portion after processing, and in use. Provided is a double-sided adhesive tape which is capable of easily peeling a double-sided adhesive tape member cut into a predetermined shape from a release liner, which is a mount, and having excellent quality stability after half-cut processing, and a processing method thereof. Has an aim.
【０００７】[0007]
【課題を解決するための手段】即ち本発明は、前記課題
を達成するために、両面接着テープの両粘着剤層面に剥
離ライナが設けられた両面接着テープにおいて、一方の
剥離ライナと両面接着テープ層に、テープ幅方向に対し
て略平行な切込み線が、テープ長手方向に対して所定間
隔で連続的に設けられ、かつ、他方の剥離ライナが、切
込み線を介して分割された両面接着テープ部材間に隙間
を設けることができる延伸可能な基材より構成されてい
る。Means for Solving the Problems In order to achieve the above object, the present invention provides a double-sided adhesive tape in which a release liner is provided on both pressure-sensitive adhesive layer surfaces of a double-sided adhesive tape. Double-sided adhesive tape in which cut lines substantially parallel to the tape width direction are continuously provided in the layer at predetermined intervals in the tape longitudinal direction, and the other release liner is divided through the cut lines. It is composed of a stretchable base material capable of providing a gap between members.
【０００８】また、他の発明としては、両面接着テープ
の両粘着剤層面に剥離ライナが設けられた両面接着テー
プにおいて、一方の剥離ライナと両面接着テープ層に、
所定形状を形成する切込み線と該切込み線の周縁部から
両面接着テープの幅方向両端部に向かう補助切込み線
が、テープ長手方向に対して所定間隔で連続的に設けら
れ、かつ、他方の剥離ライナが、切込み線を介して分割
された両面接着テープ部材間に隙間を設けることができ
る延伸可能な基材より構成されている。As another invention, in a double-sided adhesive tape in which a release liner is provided on both pressure-sensitive adhesive layer surfaces of a double-sided adhesive tape, one release liner and the double-sided adhesive tape layer are:
A cut line forming a predetermined shape and auxiliary cut lines extending from the peripheral edge of the cut line to both ends in the width direction of the double-sided adhesive tape are continuously provided at predetermined intervals in the tape longitudinal direction, and the other is peeled off. The liner is composed of a stretchable substrate capable of providing a gap between the double-sided adhesive tape members divided by the score line.
【０００９】また、他の発明としては、切込み線を介し
て分割された両面接着テープ部材間に隙間が設けられた
両面接着テープに関する。Another aspect of the present invention relates to a double-sided adhesive tape in which a gap is provided between the double-sided adhesive tape members divided by a score line.
【００１０】また、他の発明としては、前記両面接着テ
ープにおいて、両面接着テープを長手方向に延伸するこ
とによって、切込み線を介して分割された両面接着テー
プ部材間に隙間を設ける両面接着テープの加工方法に関
する。In another aspect of the invention, in the double-sided adhesive tape, a double-sided adhesive tape is provided in which a gap is provided between the double-sided adhesive tape members divided by a score line by stretching the double-sided adhesive tape in a longitudinal direction. Regarding processing method.
【００１１】[0011]
【作用】本発明の両面接着テープは上記構成を有し、か
つ、ハーフカット加工により、一方の剥離ライナと両面
接着テープ層に、テープ幅方向に対して略平行な切込み
線あるいは、所定形状を形成する切込み線と該切込み線
の周縁部から両面接着テープの幅方向両端部に向かう補
助切込み線を形成させるため、ハーフカット加工後、両
面接着テープを延伸することにより、切込み線を介して
分割された両面接着テープ部材間に延伸条件に応じた所
定間隔の隙間を設けることができる。そのため、ハーフ
カット加工後の切込み線の部分における粘着剤同士の再
接着を防止することができ、使用時、剥離ライナ（台
紙）上から所定形状に切断された両面接着テープ部材を
容易に剥離することができる。The double-sided adhesive tape of the present invention has the above-mentioned structure and is subjected to half-cut processing to form a cut line or a predetermined shape in the release liner and the double-sided adhesive tape layer which are substantially parallel to the tape width direction. In order to form a score line to be formed and an auxiliary score line extending from the peripheral edge of the score line to both ends in the width direction of the double-sided adhesive tape, the double-sided adhesive tape is stretched after half-cutting to divide the double-sided adhesive tape through the score line. It is possible to provide a gap at a predetermined interval according to the stretching condition between the prepared double-sided adhesive tape members. Therefore, it is possible to prevent the adhesives from being re-adhered to each other in the part of the score line after the half-cut processing, and easily peel off the double-sided adhesive tape member cut into a predetermined shape from the release liner (mounting paper) during use. be able to.
【００１２】[0012]
【発明の実施の形態】次に本発明を図面に基づいて説明
する。図１は、剥離ライナ１と、支持体層２ｂの両面に
粘着剤層２ａ、２ｃを設けた構成からなる両面接着テー
プ層２に、ハーフカット加工によりテープ幅方向に対し
て平行な切込み線ａを、テープ長手方向に対して所定間
隔で連続的に形成させるとともに、切込み線を入れない
剥離ライナ３は、上記切込み線を介して分割された両面
接着テープ部材間Ａ−Ａに隙間を設けることができる延
伸可能な基材よりなる本発明の両面接着テープの構成を
示す平面図（イ）及び、（イ）におけるＩ−Ｉ断面図
（ロ）であり、図２は、両面接着テープに切込み線ａを
形成した後、剥離ライナ３を延伸させて短冊状の両面接
着テープ部材Ａ同士の間に隙間４を設けた状態を示す平
面図（イ）及び、（イ）におけるII−II断面図（ロ）で
ある。図３は、剥離ライナ１と両面接着テープ層２に、
ハーフカット加工により円形の切込み線ｂとその周縁部
から両面接着テープの幅方向両端部に到達する補助切込
み線ｂ’を両面接着テープの長手方向に対して所定間隔
で連続的に形成させるとともに、切込み線を入れない剥
離ライナ３は、上記切込み線を介して分割された両面接
着テープ部材間Ｂ−Ｃに隙間を設けることができる延伸
可能な基材よりなる本発明の両面接着テープの他の実施
例の構成を示す平面図（イ）及び、（イ）における III
−III 断面図（ロ）であり、図４は、両面接着テープに
切込み線ｂ、ｂ’を形成した後、剥離ライナ３を延伸さ
せて、切込み線を介して分割された両面接着テープ部材
間Ｂ−Ｃに隙間４を設けた状態を示す平面図（イ）及
び、（イ）におけるIV−IV断面図（ロ）である。DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, the present invention will be described with reference to the drawings. FIG. 1 shows a double-sided adhesive tape layer 2 composed of a release liner 1 and pressure-sensitive adhesive layers 2a and 2c provided on both sides of a support layer 2b. Is continuously formed at a predetermined interval in the longitudinal direction of the tape, and the release liner 3 having no cut line is provided with a gap between the double-sided adhesive tape member AA divided through the cut line. FIG. 2 is a plan view (a) showing a constitution of a double-sided adhesive tape of the present invention made of a stretchable base material capable of forming a cross section (b) taken along line II in FIG. After forming the line a, the release liner 3 is stretched to provide a gap 4 between the strip-shaped double-sided adhesive tape members A (a) and a sectional view taken along line II-II in (a). It is (b). FIG. 3 shows the release liner 1 and the double-sided adhesive tape layer 2,
The circular cut line b and the auxiliary cut lines b ′ that reach the both ends in the width direction of the double-sided adhesive tape from the peripheral portion thereof by the half-cut process are continuously formed at predetermined intervals in the longitudinal direction of the double-sided adhesive tape, The release liner 3 having no score line is the other double-sided adhesive tape of the present invention made of a stretchable substrate capable of providing a gap between the double-sided adhesive tape member B-C divided through the score line. The top view (a) which shows the structure of an Example, and III in (a)
FIG. 4 is a cross-sectional view (III) of FIG. 4, in which the double-sided adhesive tape is formed with the cut lines b and b ′, and then the release liner 3 is stretched to separate the double-sided adhesive tape members from each other through the cut lines. 4A is a plan view showing a state in which a gap 4 is provided in BC, and FIG. 4B is a sectional view taken along line IV-IV in FIG.
【００１３】本発明の両面接着テープのハーフカット加
工方法は何ら限定されるものではなく従来と同様の方法
を用いることができる。例えばトムソン刃等を使用して
一方の剥離ライナと両面接着テープのみに切断刃を入れ
て切込み線が設けられる。この時、切断刃で切込み線を
入れないもう一方の剥離ライナ（台紙）は、ハーフカッ
ト加工後、両面接着テープを延伸したときに、切込み線
を介して分割された両面接着テープ部材間に隙間を付与
させることができる延伸可能な基材にて構成されている
ことが必要となる。The method of half-cutting the double-sided adhesive tape of the present invention is not limited at all, and the same method as the conventional method can be used. For example, using a Thomson blade or the like, the cutting line is provided by inserting the cutting blade only in one release liner and the double-sided adhesive tape. At this time, the other release liner (mounting paper) that does not make a score line with the cutting blade, when the double-sided adhesive tape is stretched after half-cut processing, creates a gap between the double-sided adhesive tape members divided through the score line. It is necessary to be composed of a stretchable base material capable of imparting.
【００１４】ハーフカット加工によって、本発明の両面
接着テープに形成される切込み線の形状は、何ら限定さ
れるものではなく、両面接着テープを使用して接合する
部位に応じた形状の切込み線が形成される。例えば図１
に示す如く、両面接着テープを短冊状部材にハーフカッ
ト加工する場合は、テープ幅方向に対して平行な切込み
線ａが、テープ長手方向に対して所定間隔で連続的に設
けられる。The shape of the score line formed on the double-sided adhesive tape of the present invention by the half-cut process is not limited at all, and the shape of the score line corresponding to the part to be joined by using the double-sided adhesive tape is not limited. It is formed. Figure 1
When the double-sided adhesive tape is half-cut into a strip-shaped member as shown in FIG. 5, cut lines a parallel to the tape width direction are continuously provided at predetermined intervals in the tape longitudinal direction.
【００１５】また、図３に示す如く、両面接着テープを
円形状部材にハーフカット加工する場合は、円形の切込
み線ｂとその周縁部から両面接着テープの幅方向両端部
に到達する補助切込み線ｂ’が両面接着テープの長手方
向に対して所定間隔で連続的に設けられる。Further, as shown in FIG. 3, when the double-sided adhesive tape is half-cut into a circular member, a circular cutting line b and auxiliary cutting lines which reach from the peripheral portion to both ends in the width direction of the double-sided adhesive tape. b'is continuously provided at predetermined intervals in the longitudinal direction of the double-sided adhesive tape.
【００１６】ここで、補助切込み線とは、ハーフカット
加工後、両面接着テープを延伸したときに、切込み線を
介して分割された両面接着テープ部材間に隙間を付与さ
せて、接着に使用する両面接着テープ部材と接着に使用
しない両面接着テープ部材（不要部）の境界線を分離さ
せる為のものであり、補助切込み線は所定形状を形成す
る切込み線とつながっている必要がある。かかる補助切
込み線は、所定形状を形成する切込み線の周縁部からテ
ープ幅方向（左右）両端部に向かって少なくとも１本ず
つ設けられることが必要であり、ハーフカット加工され
た両面接着テープ基材の形状が複雑な場合は、テープ幅
方向両端部に向かって形成される切込み線を複数本にす
ることができる。Here, the auxiliary score line is used for bonding by making a gap between the double-sided adhesive tape members divided through the score line when the double-sided adhesive tape is stretched after half-cutting. This is for separating the boundary line between the double-sided adhesive tape member and the double-sided adhesive tape member (unnecessary portion) not used for adhesion, and the auxiliary cut line needs to be connected to the cut line forming the predetermined shape. It is necessary that at least one such auxiliary cut line is provided from the peripheral edge of the cut line forming a predetermined shape toward both ends in the tape width direction (left and right), and the half-cut double-sided adhesive tape base material. If the shape is complicated, a plurality of cut lines can be formed toward both ends in the tape width direction.
【００１７】ハーフカット加工は、例えば両面接着テー
プの長手方向に対して所定の間隔（ピッチ）で連続的に
行われることが好ましい。The half-cutting process is preferably performed continuously at a predetermined interval (pitch) in the longitudinal direction of the double-sided adhesive tape, for example.
【００１８】本発明の両面接着テープのハーフカット加
工は、両面接着テープ層と一方の剥離ライナのみに行わ
れ、他方の剥離ライナは切断加工されず、切込み線を介
して分割された両面接着テープ部材間に隙間を設けるこ
とができる延伸可能な基材から構成される。かかる基材
としては、例えば、延伸処理等を行うことにより基材を
引き伸ばすことができる各種プラスチックフィルムが好
ましい。The half-cutting of the double-sided adhesive tape of the present invention is performed only on the double-sided adhesive tape layer and one release liner, and the other release liner is not cut and is divided through the score line. It is composed of a stretchable base material capable of providing a gap between members. As such a base material, for example, various plastic films capable of stretching the base material by performing a stretching treatment or the like are preferable.
【００１９】切断加工されない剥離ライナの基材が、延
伸処理を行うことのできるプラスチックフィルムで構成
されていれば、ハーフカット加工が行われた後、両面接
着テープを長手方向に延伸することにより、プラスチッ
クフィルムを基材とする剥離ライナ（台紙）が引き伸ば
され、切込み線を介して分割された両面接着テープ部材
間に所定間隔の隙間を付与させることができる。If the base material of the release liner that is not cut is made of a plastic film that can be stretched, the double-sided adhesive tape is stretched in the longitudinal direction after half-cutting. A release liner (mounting paper) having a plastic film as a base material is stretched, and a gap of a predetermined distance can be provided between the double-sided adhesive tape members divided through the score line.
【００２０】延伸方法としては、例えば、ハーフカット
加工後、連続的に両面接着テープを加熱した延伸ロール
に導き、両面接着テープをロール間延伸させてプラスチ
ックフィルムからなる剥離ライナを引き伸ばす方法等が
例示されるが、これに限定されるものではない。As a stretching method, for example, after half-cutting, the double-sided adhesive tape is continuously guided to a heated stretching roll, and the double-sided adhesive tape is stretched between rolls to stretch a release liner made of a plastic film. However, the present invention is not limited to this.
【００２１】延伸条件としては、延伸された剥離ライナ
が処理後、収縮することにより両面接着テープ部材間の
隙間が狭まることがないように設定され、必要に応じて
アニール処理を行うこともできる。延伸条件は、延伸処
理される剥離ライナ基材の種類やハーフカット加工され
た両面接着テープ部材のサイズによって異なるが、通
常、延伸前の剥離ライナの長さに対して５〜５０％延伸
される条件（延伸倍率１０５〜１５０％）が好ましい。The stretching conditions are set so that the stretched release liner does not shrink after the treatment so that the gap between the double-sided adhesive tape members is narrowed, and an annealing treatment can be performed if necessary. Stretching conditions vary depending on the type of release liner base material to be stretched and the size of the half-cut double-sided adhesive tape member, but usually 5 to 50% is stretched with respect to the length of the release liner before stretching. Conditions (stretching ratio 105 to 150%) are preferable.
【００２２】延伸後の両面接着テープ部材間の隙間は、
両面接着テープ保存時の粘着剤同士の再接着防止の点か
ら０．５mm以上、好ましくは０．５〜５mmである。The gap between the double-sided adhesive tape members after stretching is
The thickness is 0.5 mm or more, preferably 0.5 to 5 mm, from the viewpoint of preventing re-adhesion of the adhesives during storage of the double-sided adhesive tape.
【００２３】本発明の両面接着テープは、両粘着剤層に
それぞれ剥離ライナが被覆された構成を有するものであ
る。そして、剥離ライナは、その少なくとも一方が、ハ
ーフカット加工された両面接着テープ部材間に隙間を付
与することができる延伸可能な基材にて構成されている
ことを満足すれば特に限定されない。このような剥離ラ
イナの基材としては、例えば、ポリエチレン、ポリ塩化
ビニル、ポリエチレンテレフタレート、ポリプロピレン
等の延伸処理等を行うことによって剥離ライナを引き伸
ばすことが可能なプラスチックフィルムが挙げられる。
少なくとも一方の剥離ライナの基材が上記の様な材料よ
り構成されていれば、他方の剥離ライナ基材には、上質
紙、クラフト紙、グラシン紙等の紙を使用したもの、又
は、これらの紙の片面又は両面にポリエチレン等の高分
子材料をラミネート加工したもの等を使用することがで
きる。The double-sided adhesive tape of the present invention has a constitution in which both adhesive layers are coated with release liners. The release liner is not particularly limited as long as at least one of the release liners is formed of a stretchable base material capable of providing a gap between the half-cut double-sided adhesive tape members. Examples of the base material of such a release liner include a plastic film capable of stretching the release liner by subjecting polyethylene, polyvinyl chloride, polyethylene terephthalate, polypropylene or the like to a stretching treatment or the like.
If the base material of at least one release liner is composed of the above-mentioned materials, the other release liner base material uses a paper such as high-quality paper, kraft paper, glassine paper, or the like. It is possible to use one or both sides of paper laminated with a polymer material such as polyethylene.
【００２４】剥離ライナ基材の厚さは、ハーフカット加
工時における切断刃での加工性や、剥離ライナを剥がす
ときの作業性が困難なものでなければ特に限定されない
が、好ましくは、１５μｍ以上、さらに好ましくは、２
５〜５００μｍである。The thickness of the release liner base material is not particularly limited as long as the workability with a cutting blade during half-cutting and the workability when peeling off the release liner are not particularly limited, but preferably 15 μm or more. , And more preferably 2
It is 5 to 500 μm.
【００２５】剥離ライナに使用する離型剤としては、シ
リコーン系離型剤や長鎖アルキル系離型剤を適宜選択し
て使用することができるが、剥離性の点からは、シリコ
ーン系離型剤が好ましい。離型剤は、剥離ライナ基材の
片面または両面に塗布される。As the release agent used in the release liner, a silicone-based release agent or a long-chain alkyl-based release agent can be appropriately selected and used. From the viewpoint of release property, the silicone-based release agent is used. Agents are preferred. The release agent is applied to one side or both sides of the release liner base material.
【００２６】本発明の両面接着テープの構成としては、
従来構成のものをいずれも使用することができ、具体的
にはパルプ、レーヨン繊維、ポリエステル繊維等を原料
とした織布あるいは不織布、又はポリエステル、ポリプ
ロピレン、ポリエチレン、ポリ塩化ビニル等のプラスチ
ックフィルムを支持体とし、その両面にアクリル系やゴ
ム系あるいはシリコーン系等の粘着剤層を設けた構成の
もの、さらに、支持体層がなく粘着剤層だけの構成のも
の等が例示される。The structure of the double-sided adhesive tape of the present invention is as follows:
Any of the conventional structures can be used. Specifically, it supports a woven or non-woven fabric made of pulp, rayon fiber, polyester fiber, or the like, or a plastic film such as polyester, polypropylene, polyethylene, or polyvinyl chloride. Examples thereof include a body having a structure in which an acrylic, rubber, or silicone pressure sensitive adhesive layer is provided on both surfaces, and a structure having only a pressure sensitive adhesive layer without a support layer.
【００２７】[0027]
【実施例】以下に具体的実施例を挙げて本発明を説明す
るが、本発明はこれら実施例に何ら限定されるものでは
ない。EXAMPLES The present invention will be described below with reference to specific examples, but the present invention is not limited to these examples.
【００２８】（実施例１）マニラ麻パルプからなる坪量
１４ｇ／ｍ2 、厚さ４５μｍの不織布の両面にアクリル
系粘着剤を塗布、乾燥させて総厚１６０μｍのアクリル
系両面接着テープを作成し、一方の粘着剤面には、坪量
９０ｇ／ｍ2 の上質紙の両面にポリエチレンをラミネー
ト加工した基材（総厚１４５μｍ）にシリコーン離型剤
を塗布した剥離ライナ（ＰＥラミ上質紙剥離ライナと称
す）を被覆し、もう一方の粘着剤面には、厚さ１００μ
ｍのポリエチレンフィルムにシリコーン離型剤を塗布し
た剥離ライナ（ＰＥ剥離ライナと称す）を被覆させて両
面接着テープ（テープ幅５０mm）を得た。トムソン刃を
使用して、ＰＥラミ上質紙剥離ライナと両面接着テープ
に、テープ幅方向に対して平行な切込み線を、テープ長
手方向に対して１０mm間隔で連続的に設けるハーフカッ
ト加工を行い、引き続き、両面接着テープを延伸ロール
（ロール径１００mm、ロール温度１２０℃）に導き、Ｐ
Ｅ剥離ライナをＭＤ方向に１５％延伸させた後、両面接
着テープを巻き芯に巻き取って本発明の両面接着テープ
を作製した。なお、この実施例の両面接着テープ部材間
の隙間は１mmであった。Example 1 An acrylic double-sided adhesive tape having a total thickness of 160 μm was prepared by coating an acrylic adhesive on both sides of a nonwoven fabric made of Manila hemp pulp and having a basis weight of 14 g / m 2 and a thickness of 45 μm. On one side of the adhesive, a release liner (PE lami wood-free paper release liner with a silicone release agent applied to a base material (total thickness 145 μm) laminated with polyethylene on both sides of a high-quality paper having a basis weight of 90 g / m 2 The other side of the adhesive has a thickness of 100 μm.
A double-sided adhesive tape (tape width: 50 mm) was obtained by coating a polyethylene liner m of m with a release liner coated with a silicone release agent (referred to as PE release liner). Using a Thomson blade, perform half-cut processing in which PE lap top quality paper release liner and double-sided adhesive tape are continuously provided with score lines parallel to the tape width direction at intervals of 10 mm in the tape longitudinal direction. Then, the double-sided adhesive tape is led to a drawing roll (roll diameter 100 mm, roll temperature 120 ° C.), and P
After the E release liner was stretched by 15% in the MD direction, the double-sided adhesive tape was wound on a winding core to prepare the double-sided adhesive tape of the present invention. The gap between the double-sided adhesive tape members in this example was 1 mm.
【００２９】（実施例２）トムソン刃を使用して、ＰＥ
ラミ上質紙剥離ライナと両面接着テープに円形（３０mm
φ）の切込み線とその周縁部からテープ幅方向両端部に
向かう補助切込み線を、両面接着テープの長手方向に一
定ピッチで設けるハーフカット加工に変更した以外は、
実施例１と同様にして本発明の両面接着テープを作製し
た。なお、この実施例の両面接着テープ部材間の隙間は
１mmであった。(Example 2) PE using a Thomson blade
Circular (30 mm
φ) The cutting line and the auxiliary cutting lines extending from the peripheral edge to both ends in the tape width direction are changed to half-cut processing in which the double-sided adhesive tape is provided with a constant pitch in the longitudinal direction.
A double-sided adhesive tape of the present invention was produced in the same manner as in Example 1. The gap between the double-sided adhesive tape members in this example was 1 mm.
【００３０】（比較例１）ハーフカット加工後の延伸処
理を行なわなかった以外は実施例１と同様にして両面接
着テープを作製した。(Comparative Example 1) A double-sided adhesive tape was produced in the same manner as in Example 1 except that the stretching treatment after half-cut processing was not performed.
【００３１】（比較例２）ハーフカット加工後の延伸処
理を行なわなかった以外は実施例２と同様にして両面接
着テープを作製した。(Comparative Example 2) A double-sided adhesive tape was produced in the same manner as in Example 2 except that the stretching treatment after half-cut processing was not performed.
【００３２】実施例及び比較例で得られた両面接着テー
プについて以下の評価を行なった。The double-sided adhesive tapes obtained in Examples and Comparative Examples were evaluated as follows.
【００３３】〔剥離性試験〕両面接着テープを３５℃×
８５％ＲＨの条件下に７日間放置した後、自動貼り合わ
せ機を使用して、貼り合わせ試験を行い、ハーフカット
加工された両面接着テープ部材が、両面接着テープのＰ
Ｅ剥離ライナ（台紙）からスムーズに剥離（ピックアッ
プ）して接着物品に連続的に供給されているか評価し
た。両面接着テープ部材のＰＥ剥離ライナからの剥離が
スムーズで自動貼り合わせ作業に問題がなかった場合を
○、ＰＥ剥離ライナからの剥離がスムーズでなく、両面
接着テープ部材を連続的に供給することができなかった
場合を×とした。 [Peelability Test] Double-sided adhesive tape was applied at 35 ° C.
After being left under the condition of 85% RH for 7 days, a bonding test was conducted using an automatic bonding machine, and the half-cut processed double-sided adhesive tape member was
E It was evaluated whether it was smoothly separated (picked up) from the release liner (mounting paper) and continuously supplied to the adhesive article. When the peeling of the double-sided adhesive tape member from the PE release liner is smooth and there is no problem in the automatic bonding work, the peeling from the PE release liner is not smooth and the double-sided adhesive tape member can be continuously supplied. When it was not possible, it was set as x.
【００３４】[0034]
【発明の効果】本発明の両面接着テープは、両粘着剤層
が剥離ライナで被覆されており、かつ、ハーカット加工
時、一方の剥離ライナと両面接着テープに、所定形状を
形成する切込み線が、テープ長手方向に対して所定間隔
で連続的に設けられると共に、切断加工されない剥離ラ
イナが、ハーフカット加工された両面接着テープ部材間
に隙間を付与することができる延伸可能な基材にて構成
されていることを特徴としているため、ハーフカット加
工後両面接着テープを延伸することにより、切込み線を
介して分割された両面接着テープ部材間に延伸条件に応
じた所定間隔の隙間を設けることができる。そのため、
ハーフカット加工後の切込み線の部分における両面接着
テープ部材同士の再接着を防止することができ、使用
時、剥離ライナ（台紙）上から所定形状に切断された両
面接着テープ部材を容易に剥離することができる。従っ
て、ハーフカット加工された両面接着テープを長期間放
置した場合でも、自動貼り合わせ機で貼り合わせる際
に、両面接着テープ部材の供給トラブルが発生しないた
め、作業効率を低下させることがなくなる。EFFECTS OF THE INVENTION The double-sided adhesive tape of the present invention has both pressure-sensitive adhesive layers covered with a release liner, and at the time of harcut processing, one release liner and the double-sided adhesive tape have a score line forming a predetermined shape. The release liner, which is continuously provided at a predetermined interval in the longitudinal direction of the tape and is not cut, is made of a stretchable base material capable of providing a gap between the half-cut double-sided adhesive tape members. Therefore, by stretching the double-sided adhesive tape after half-cut processing, it is possible to provide a gap at a predetermined interval according to the stretching condition between the double-sided adhesive tape members divided through the score line. it can. for that reason,
It is possible to prevent the double-sided adhesive tape members from being re-adhered to each other at the cut line portion after the half-cut processing, and easily peel off the double-sided adhesive tape member cut into a predetermined shape from the release liner (mounting paper) during use. be able to. Therefore, even if the half-cut double-sided adhesive tape is left for a long period of time, there is no trouble in supplying the double-sided adhesive tape member when the two-sided adhesive tape member is stuck by the automatic sticking machine, so that work efficiency is not reduced.
【図１】図１の（イ）は、本発明に係る両面接着テープ
のハーフカット加工後の実施例を示す平面図、図１の
（ロ）は、図１の（イ）におけるＩ−Ｉ断面図である。1 (a) is a plan view showing an embodiment of a double-sided adhesive tape according to the present invention after half-cut processing, and FIG. 1 (b) is II in FIG. 1 (a). FIG.
【図２】図２の（イ）は、本発明に係る両面接着テープ
の延伸処理後の実施例を示す平面図、図２の（ロ）は、
図２の（イ）におけるII−II断面図である。2 (a) is a plan view showing an embodiment of the double-sided adhesive tape according to the present invention after a stretching treatment, and FIG. 2 (b) is
FIG. 3 is a sectional view taken along line II-II in FIG.
【図３】図３の（イ）は、本発明に係る両面接着テープ
のハーフカット加工後の他の実施例を示す平面図、図３
の（ロ）は、図３の（イ）における III−III 断面図で
ある。3 (a) is a plan view showing another embodiment of the double-sided adhesive tape according to the present invention after half-cutting, FIG.
3B is a sectional view taken along line III-III in FIG.
【図４】図４の（イ）は、本発明に係る両面接着テープ
の延伸処理後の実施例を示す平面図、図４の（ロ）は、
図４の（イ）におけるIV−IV断面図である。4 (a) is a plan view showing an embodiment of the double-sided adhesive tape according to the present invention after a stretching treatment, and FIG. 4 (b) is
FIG. 4 is a sectional view taken along line IV-IV in FIG.
１ 剥離ライナ ２ 両面接着テープ層 ３ 剥離ライナ ４ 隙間 ２ａ 粘着剤層 ２ｂ 支持体層 ２ｃ 粘着剤層 ａ 切込み線 ｂ 切込み線 ｂ’ 補助切込み線 Ａ 両面接着テープ部材 Ｂ 両面接着テープ部材 Ｃ 両面接着テープ部材 1 Release Liner 2 Double Sided Adhesive Tape Layer 3 Release Liner 4 Gap 2a Adhesive Layer 2b Support Layer 2c Adhesive Layer a Cut Line b Cut Line b'Auxiliary Cut Line A Double Sided Adhesive Tape Member B Double Sided Adhesive Tape Member C Double Sided Adhesive Tape Element
Claims (4)
イナが設けられた両面接着テープにおいて、一方の剥離
ライナと両面接着テープ層に、テープ幅方向に対して略
平行な切込み線が、テープ長手方向に対して所定間隔で
連続的に設けられ、かつ、他方の剥離ライナが、切込み
線を介して分割された両面接着テープ部材間に隙間を設
けることができる延伸可能な基材より構成されているこ
とを特徴とする両面接着テープ。1. A double-sided adhesive tape in which a release liner is provided on both pressure-sensitive adhesive layer surfaces of a double-sided adhesive tape, wherein one release liner and the double-sided adhesive tape layer have cut lines substantially parallel to the tape width direction. The release liner is continuously provided at a predetermined interval in the longitudinal direction, and the other release liner is made of a stretchable substrate capable of providing a gap between the double-sided adhesive tape members divided by the score line. A double-sided adhesive tape characterized in that
イナが設けられた両面接着テープにおいて、一方の剥離
ライナと両面接着テープ層に、所定形状を形成する切込
み線と該切込み線の周縁部から両面接着テープの幅方向
両端部に向かう補助切込み線が、テープ長手方向に対し
て所定間隔で連続的に設けられ、かつ、他方の剥離ライ
ナが、切込み線を介して分割された両面接着テープ部材
間に隙間を設けることができる延伸可能な基材より構成
されていることを特徴とする両面接着テープ。2. A double-sided adhesive tape in which a release liner is provided on both pressure-sensitive adhesive layer surfaces of a double-sided adhesive tape, wherein one release liner and the double-sided adhesive tape layer form a score line and a peripheral portion of the score line. To the both ends of the double-sided adhesive tape in the width direction, auxiliary cut lines are continuously provided at predetermined intervals in the tape longitudinal direction, and the other release liner is divided through the cut line. A double-sided adhesive tape comprising a stretchable base material capable of providing a gap between members.
ープ部材間に隙間が設けられたことを特徴とする請求項
１又は２記載の両面接着テープ。3. The double-sided adhesive tape according to claim 1, wherein a gap is provided between the double-sided adhesive tape members divided by the score line.
おいて、両面接着テープを長手方向に延伸することによ
って、切込み線を介して分割された両面接着テープ部材
間に隙間を設けることを特徴とする両面接着テープの加
工方法。4. The double-sided adhesive tape according to claim 1 or 2, wherein the double-sided adhesive tape is stretched in the longitudinal direction so that a gap is provided between the double-sided adhesive tape members divided through the score line. How to process double-sided adhesive tape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7295240A JPH09137136A (en) | 1995-11-14 | 1995-11-14 | Double-coated adhesive tape and its processing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7295240A JPH09137136A (en) | 1995-11-14 | 1995-11-14 | Double-coated adhesive tape and its processing method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH09137136A true JPH09137136A (en) | 1997-05-27 |
Family
ID=17818035
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7295240A Pending JPH09137136A (en) | 1995-11-14 | 1995-11-14 | Double-coated adhesive tape and its processing method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH09137136A (en) |
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-
1995
- 1995-11-14 JP JP7295240A patent/JPH09137136A/en active Pending
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