JPH0853656A - Pressure-sensitive adhesive tape - Google Patents

Pressure-sensitive adhesive tape

Info

Publication number
JPH0853656A
JPH0853656A JP21044594A JP21044594A JPH0853656A JP H0853656 A JPH0853656 A JP H0853656A JP 21044594 A JP21044594 A JP 21044594A JP 21044594 A JP21044594 A JP 21044594A JP H0853656 A JPH0853656 A JP H0853656A
Authority
JP
Japan
Prior art keywords
silicone
pressure
sensitive adhesive
tape
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.)
Granted
Application number
JP21044594A
Other languages
Japanese (ja)
Other versions
JP3469945B2 (en
Inventor
Fujio Taniwaki
富士雄 谷脇
Tomikazu Shibano
富四 柴野
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Lintec Corp
Original Assignee
Lintec Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Lintec Corp filed Critical Lintec Corp
Priority to JP21044594A priority Critical patent/JP3469945B2/en
Publication of JPH0853656A publication Critical patent/JPH0853656A/en
Application granted granted Critical
Publication of JP3469945B2 publication Critical patent/JP3469945B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Landscapes

  • Adhesive Tapes (AREA)
  • Adhesives Or Adhesive Processes (AREA)

Abstract

PURPOSE:To obtain a pressure-sensitive adhesive tape which does not cause failure in peeling from both acrylic and rubber-base pressure-sensitive adhesives and is useful particularly as a joining tape for a release paper by using a specified silicone release agent. CONSTITUTION:A pressure-sensitive adhesive tape having a silicone pressure- sensitive adhesive layer formed on one side of a tape base and a release agent layer on the other side thereof in such a manner that the release agent layer being directly into contact with the pressure-sensitive adhesive layer, wherein the release agent layer comprises a silicone release agent containing an adduct type polyorganosiloxane having a 4C or higher alkenyl group as the functional group while the pressure-sensitive adhesive layer comprises a silicone pressure- sensitive adhesive based on an adduct type dimethylpolysiloxane. As the adduct type polyorganosiloxane having a 4C or higher alkenyl group, one having a constitution of the formula [wherein R is (CH2) nCH=CH2; and n is 2 to 8] is preferably used.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【産業上の利用分野】本発明は、シリコーン系粘着剤を
塗工した粘着テープに関し、特に剥離紙の紙継ぎテープ
として有用な粘着テープに関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pressure-sensitive adhesive tape coated with a silicone-based pressure-sensitive adhesive, and more particularly to a pressure-sensitive adhesive tape useful as a paper splicing tape for release paper.

【0002】[0002]

【従来の技術】従来より、シリコーン処理された剥離紙
同士を接続させるためには、シリコーン系粘着剤が基材
に塗布されたシリコーン系粘着テープが使用されてい
た。接続された剥離紙は、シリコーン処理面上に粘着剤
及び基材が積層され、粘着ラベル・シート等に加工され
る。シリコーン処理された剥離紙同士を接続させるのに
用いられるシリコーン系粘着テープには、例えば、図2
に示されているように、テープ基材10の一方の面10
aにシリコーン系粘着剤層11が設けられ、他方のテー
プ背面10bには、テープ自身に用いられているシリコ
ーン系粘着剤に対して有効な非シリコーン系剥離剤処理
がされていたり、あるいは無処理のもので、シリコーン
系粘着剤層11とテープ背面10bが直接対接せしめら
れている剥離ライナーのないテープ形状のものが知られ
ている。上記のシリコーン系粘着テープを剥離紙の紙継
ぎテープとして使用すると、背面10bが、粘着ラベル
・シート等に用いられるアクリル系やゴム系等の一般の
粘着剤に対して、剥離性がないため、粘着ラベル・シー
ト等の製造時、従来のシリコーン系粘着テープで接続さ
れた剥離紙では、アクリル系粘着剤やゴム系粘着剤が剥
離紙上に塗工される場合に、そのシリコーン系粘着テー
プと剥離紙の接続箇所におけるテープ背面で剥離不良を
起こす欠点を有していた。
2. Description of the Related Art Conventionally, a silicone adhesive tape having a silicone adhesive applied to a substrate has been used for connecting silicone-treated release papers to each other. The connected release paper is processed into a pressure-sensitive adhesive label / sheet by laminating a pressure-sensitive adhesive and a base material on the silicone-treated surface. A silicone-based adhesive tape used for connecting silicone-treated release papers to each other is, for example, as shown in FIG.
One side 10 of the tape substrate 10 as shown in FIG.
a is provided with a silicone adhesive layer 11, and the other tape back surface 10b is treated with a non-silicone release agent effective for the silicone adhesive used for the tape itself, or is not treated. It is known that the silicone adhesive layer 11 and the tape back surface 10b are in direct contact with each other without a release liner and in a tape shape. When the above silicone-based adhesive tape is used as a splicing tape for release paper, the back surface 10b has no releasability against general adhesives such as acrylic and rubber adhesives used for adhesive labels and sheets. In the production of pressure-sensitive adhesive labels / sheets, etc., with conventional release paper connected with silicone adhesive tape, when acrylic adhesive or rubber adhesive is coated on the release paper, it will be separated from the silicone adhesive tape. It had a defect that peeling failure occurred on the back surface of the tape at the paper connection point.

【0003】このため、シリコーン系粘着テープの背面
と粘着ラベル・シート等の粘着層が剥離不良を起こさな
い紙継ぎテープとして、実開昭58−27333号又は
実開昭58−180258号にみられるようなシリコー
ン系粘着テープが提案されている。このテープは、図3
に示されたように、テープ基材20の片面20aにシリ
コーン系粘着剤層21、その反対面20bにシリコーン
系剥離剤層22が設けられ、該テープのシリコーン系粘
着剤層21とテープ背面20bのシリコーン系剥離剤層
22とがお互いに接触しないように、シリコーン系粘着
剤層21に、シリコーン系粘着剤に対して剥離性のある
非シリコーン系剥離剤が塗工された剥離ライナー23が
貼り合わされている剥離ライナー付きのテープ形状とし
て構成されている。
Therefore, as a paper splicing tape in which the back surface of a silicone-based adhesive tape and an adhesive layer such as an adhesive label / sheet do not cause peeling failure, it is found in JP-A-58-27333 or JP-A-58-180258. Such silicone-based adhesive tapes have been proposed. This tape is shown in Figure 3.
As shown in FIG. 2, a silicone-based adhesive layer 21 is provided on one surface 20a of the tape substrate 20, and a silicone-based release agent layer 22 is provided on the opposite surface 20b thereof, and the silicone-based adhesive layer 21 and the tape back surface 20b of the tape are provided. The release liner 23 coated with a non-silicone release agent having releasability with respect to the silicone-based adhesive is attached to the silicone-based pressure-sensitive adhesive layer 21 so that the silicone-based release agent layer 22 and the silicone-based release agent layer 22 do not contact each other. It is configured as a tape shape with a mated release liner.

【0004】さらにまた、剥離紙接続用に使用でき、し
かもその接続箇所が粘着ラベル・シート等の製造時に剥
離不良を起こさない性能を有しかつ剥離ライナーの不要
なシリコーン系粘着テープとして、特開平5−2223
45号にみられるようなシリコーン系粘着テープが提案
されている。このテープの構成は、テープ基材の片面に
シリコーン系粘着剤層、他の反対面にシリコーン系剥離
剤層を設け、該シリコーン系剥離剤層が直接シリコーン
系粘着剤層に対接せしめられている粘着テープにおい
て、前記シリコーン系剥離剤層がJISK7213によ
るせん断弾性率が1×107 dyn/cm2 から6×107 dy
n/cm2 の範囲にあるジメチルポリシロキサンを主成分と
する剥離剤からなり、前記シリコーン系粘着剤層がジメ
チルポリシロキサン系シリコーン粘着剤からなるテープ
形状とされている。
Furthermore, as a silicone-based adhesive tape which can be used for connecting a release paper and has a performance in which the connection point does not cause a peeling failure during the production of an adhesive label or sheet, etc. 5-2223
Silicone pressure-sensitive adhesive tapes such as those found in No. 45 have been proposed. The structure of this tape is such that a silicone-based pressure-sensitive adhesive layer is provided on one side of a tape base material and a silicone-based release agent layer is provided on the other side, and the silicone-based release agent layer is directly contacted with the silicone-based pressure-sensitive adhesive layer. In the adhesive tape, the silicone release agent layer has a shear modulus of 1 × 10 7 dyn / cm 2 to 6 × 10 7 dy according to JIS K7213.
The tape is formed of a release agent containing dimethylpolysiloxane as a main component in the range of n / cm 2 , and the silicone-based adhesive layer is formed of a dimethylpolysiloxane-based silicone adhesive.

【0005】[0005]

【発明が解決しようとする課題】上記実開昭58−27
333号又は実開昭58−180258号に記載された
シリコーン系粘着テープ(図3)では、シリコーン処理
された剥離紙を接続する際に、まずテープに貼り合わさ
れている剥離ライナー23を剥がし、シリコーン系粘着
剤層21をシリコーン処理された剥離紙面に貼合をして
接続する。この場合、接続テープ背面20bはシリコー
ン処理されているため、粘着ラベル又はシート等の製造
時にアクリル系粘着剤又はゴム系粘着剤が剥離紙上に塗
工されても、接続箇所は何ら剥離不良を起こさない。こ
のテープのシリコーン系剥離剤層22とシリコーン系粘
着剤層21とを対接せしめると剥離剤層と粘着剤層と
が、強固に接着し、テープの展開が不可能となるため、
剥離ライナーが必要である。しかし、テープ使用にあた
って剥離ライナーを剥がさなければならないのは、大変
手間がかかり、作業がしにくい。さらに、上記のような
シリコーン系粘着剤層に貼り合わされている剥離ライナ
ーは、一般に、エンボス処理等による凹凸の表面形状を
有するものが多く、このものでは、対接しているシリコ
ーン系粘着剤面も凹凸となり、シリコーン処理された剥
離紙への接着力が劣るという欠点を有している。
DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention
In the silicone pressure-sensitive adhesive tape (FIG. 3) described in No. 333 or Japanese Utility Model Laid-Open No. 58-180258, first, when the silicone-treated release paper is connected, the release liner 23 attached to the tape is first peeled off to remove the silicone. The system pressure-sensitive adhesive layer 21 is attached to a silicone-treated release paper surface for connection. In this case, since the back surface 20b of the connecting tape is treated with silicone, even if an acrylic adhesive or a rubber adhesive is coated on the release paper at the time of manufacturing an adhesive label, a sheet, or the like, no peeling failure occurs at the connection point. Absent. When the silicone-based release agent layer 22 and the silicone-based pressure-sensitive adhesive layer 21 of this tape are brought into contact with each other, the release agent layer and the pressure-sensitive adhesive layer are firmly adhered to each other, making it impossible to develop the tape.
Release liner required. However, it is very troublesome and the work is difficult to remove the release liner when using the tape. Further, the release liner attached to the silicone-based pressure-sensitive adhesive layer as described above generally has an uneven surface shape due to embossing or the like, and in this case, the silicone-based pressure-sensitive adhesive surface which is in contact is also It has irregularities and has a drawback that the adhesive strength to silicone-treated release paper is poor.

【0006】一方、上記特開平5−222345号に記
載された粘着テープでは、テープの展開性は非常に良好
であるが、該粘着テープのシリコーン系剥離剤は空気中
に暴露しておくと剥離性が失われるという問題がある
(以下、外気暴露性として示す)。シリコーン系粘着テ
ープの最外周の剥離剤層が常に外気に暴露されており、
この層を使用して接続された剥離紙にアクリル系粘着剤
やゴム系粘着剤が塗工される場合には、そのシリコーン
系粘着テープと剥離紙の接続箇所におけるテープ背面で
剥離不良を起こす可能性がある。
On the other hand, in the pressure-sensitive adhesive tape described in JP-A-5-222345, the tape developability is very good, but the silicone-based release agent of the pressure-sensitive adhesive tape peels when exposed to air. There is a problem that the property is lost (hereinafter referred to as "exposed air"). The outermost release agent layer of the silicone adhesive tape is always exposed to the outside air,
When acrylic adhesive or rubber adhesive is applied to release paper connected using this layer, peeling failure may occur on the back surface of the tape at the connection point of the silicone adhesive tape and release paper. There is a nature.

【0007】[0007]

【課題を解決するための手段】本発明者らは、上述問題
点を解決すべく、種々検討した結果、特定のアルケニル
基を有する付加型ポリオルガノシロキサンを含有するシ
リコーン系剥離剤がシリコーン系粘着剤及びゴム系粘着
剤の何れに対しても有効で、バランスの良い性能を備え
た剥離剤となることを見い出した。即ち本発明の目的
は、アルケニル基を有する付加型ポリオルガノシロキサ
ンを含有する剥離剤層を有し、かつ付加型ジメチルポリ
シロキサン系シリコーン粘着剤層を有する粘着テープを
提供することである。本発明の粘着テープは、テープ基
材の片面にシリコーン系粘着剤層を設け、その反対面に
剥離剤層を設け、該剥離剤層が直接シリコーン系粘着剤
層に対接せしめられている粘着テープにおいて、該剥離
剤層が官能基として炭素数が4以上のアルケニル基を有
する付加型ポリオルガノシロキサンを含有するシリコー
ン系剥離剤からなり、該シリコーン系粘着剤層が付加型
ジメチルポリシロキサン系シリコーン粘着剤からなって
いる。
As a result of various studies to solve the above-mentioned problems, the present inventors have found that a silicone-based release agent containing an addition type polyorganosiloxane having a specific alkenyl group is a silicone-based adhesive. It has been found that the release agent is effective for both adhesives and rubber-based adhesives and has a well-balanced performance. That is, an object of the present invention is to provide an adhesive tape having a release agent layer containing an addition type polyorganosiloxane having an alkenyl group and an addition type dimethylpolysiloxane-based silicone adhesive layer. The pressure-sensitive adhesive tape of the present invention is a pressure-sensitive adhesive wherein a silicone-based pressure-sensitive adhesive layer is provided on one surface of a tape substrate, and a release agent layer is provided on the opposite surface, and the release-agent layer is directly contacted with the silicone-based pressure-sensitive adhesive layer. In the tape, the release agent layer is composed of a silicone-based release agent containing an addition-type polyorganosiloxane having an alkenyl group having 4 or more carbon atoms as a functional group, and the silicone-based pressure-sensitive adhesive layer is an addition-type dimethylpolysiloxane-based silicone. It consists of an adhesive.

【0008】本発明の粘着テープは、図1に示されてい
るように、テープ基材1、その片面1aに設けられたシ
リコーン系粘着剤層2、その反対面1bに設けられたシ
リコーン系剥離剤層3からなっている。本発明における
テープ基材1としては、PETフィルム、OPPフィル
ム、ポリエチレンフィルム、ポリエーテルイミドフィル
ム、ポリイミドフィルム、アラミド紙またはこれらの積
層体、その他各種合成紙などを用いることができる。ま
た、テープ基材1に塗布されてシリコーン系粘着剤層2
を形成するシリコーン系粘着剤としては、ジメチルポリ
シロキサンをガム成分とし、白金系触媒にて硬化させて
得られるジメチルポリシロキサン系シリコーン粘着剤が
用いられ、代表的なものとしては、東レ・ダウコーニン
グ・シリコーン社製のSD−4580(商品名)が知ら
れている。このシリコーン粘着剤の塗布量は20g/m2
200g/m2固型分で、望ましくは50g/m2固形分程度が
よい。シリコーン粘着剤の塗工方式は、従来から公知の
方法でよく、例えばコンマコート、ロールコートなどで
よい。
As shown in FIG. 1, the pressure-sensitive adhesive tape of the present invention comprises a tape base material 1, a silicone-based pressure-sensitive adhesive layer 2 provided on one surface 1a thereof, and a silicone-based release material provided on the opposite surface 1b thereof. It is composed of the agent layer 3. As the tape substrate 1 in the present invention, a PET film, an OPP film, a polyethylene film, a polyetherimide film, a polyimide film, an aramid paper or a laminated body of these, and other various synthetic papers can be used. In addition, the silicone-based pressure-sensitive adhesive layer 2 applied to the tape substrate 1
As a silicone-based pressure-sensitive adhesive that forms a rubber, a dimethylpolysiloxane-based silicone pressure-sensitive adhesive obtained by curing dimethylpolysiloxane as a gum component with a platinum-based catalyst is used. Typical examples include Toray Dow Corning -SD-4580 (trade name) manufactured by Silicone Co. is known. The coating amount of this silicone adhesive is 20 g / m 2 ~
The solid content is 200 g / m 2 , preferably about 50 g / m 2 solid. The silicone adhesive may be applied by a conventionally known method, for example, comma coating or roll coating.

【0009】また、テープ基材1の背面1bに塗工され
て剥離剤層3を形成する剥離剤は、官能基として炭素数
が4以上のアルケニル基を有する付加型ポリオルガノシ
ロキサンを含有するシリコーン系剥離剤からなる。例え
ば、官能基として炭素数が4以上のアルケニル基を含有
する付加型ポリオルガノシロキサンとしては、次の式:
The release agent coated on the back surface 1b of the tape substrate 1 to form the release agent layer 3 is a silicone containing an addition type polyorganosiloxane having an alkenyl group having 4 or more carbon atoms as a functional group. It consists of a system release agent. For example, an addition type polyorganosiloxane containing an alkenyl group having 4 or more carbon atoms as a functional group is represented by the following formula:

【0010】[0010]

【化1】[Chemical 1]

【0011】を有するものであることが好ましい。式
中、nは、好ましくは2〜8であり、さらに好ましくは
4(ヘキセニル基)である。また、x,yは、粘着テー
プの剥離性能及び塗工適性を考慮して適宜選択される。
また、上記シリコーン系剥離剤のその他の成分として
は、ケイ素原子結合水素原子を有するポリオルガノシロ
キサン、アルケニル基及びケイ素原子結合水素原子を有
するポリオルガノシロキサン、官能基を有しないポリオ
ルガノシロキサンが適宜選択され、通常、白金系触媒を
添加して加熱することにより、硬化皮膜を形成する。従
来使用されているビニル基含有付加型ジメチルシロキサ
ン系の剥離剤では、外気暴露された後に、アクリル系粘
着剤、ゴム系粘着剤との剥離性が得られない。なお、シ
リコーン系剥離剤の塗工方式は、従来から公知の方法で
よい。例えばグラビアロールコート、バーコート、エア
ナイフコートなどが挙げられる。
It is preferred to have In the formula, n is preferably 2 to 8, and more preferably 4 (hexenyl group). Further, x and y are appropriately selected in consideration of the peeling performance of the adhesive tape and the suitability for coating.
As the other component of the silicone-based release agent, a polyorganosiloxane having a silicon atom-bonded hydrogen atom, a polyorganosiloxane having an alkenyl group and a silicon atom-bonded hydrogen atom, and a polyorganosiloxane having no functional group are appropriately selected. Usually, a platinum-based catalyst is added and heated to form a cured film. The vinyl group-containing addition-type dimethylsiloxane-based release agent that has been conventionally used cannot obtain releasability from an acrylic adhesive or a rubber adhesive after being exposed to the outside air. The silicone release agent may be applied by a conventionally known method. Examples thereof include gravure roll coating, bar coating and air knife coating.

【0012】[0012]

【作用】本発明による粘着テープを用い、剥離紙と剥離
紙とを接続すると、その接続箇所におけるテープ背面
は、上記のアルケニル基含有ポリオルガノシロキサンか
らなるシリコーン系剥離剤処理されているため、粘着ラ
ベル・シートに用いられるアクリル系粘着剤又はゴム系
粘着剤に対して剥離性を有しているので、ラベル・シー
トの製造時にアクリル系又はゴム系粘着剤が剥離紙上に
塗布されても、テープ接続箇所は何ら剥離不良を起こさ
ない。また、本発明の粘着テープは、付加型ジメチルポ
リシロキサン系シリコーン粘着剤とアルケニル基を有す
るポリオルガノシロキサンを含有するシリコーン系剥離
剤との組み合わせに限定したものであり、テープ背面が
直接シリコーン系粘着剤と対接している形状をなしてい
るので、従来の剥離ライナー付き粘着テープでは、使用
時にライナーをまず剥がして、シリコーン系粘着剤面を
露出させて剥離紙に貼るという作業をしなければならな
かったのに対して、本発明のテープでは、テープを展開
すると同時にシリコーン粘着剤が露出するので、そのま
ま剥離紙に貼るだけで作業性が良い。また、剥離ライナ
ーの廃棄処理も必要ないという特徴を有している。
When the release paper is connected to the release paper using the adhesive tape of the present invention, the back surface of the tape at the connection point is treated with the silicone-based release agent composed of the above alkenyl group-containing polyorganosiloxane. Since it has releasability with respect to the acrylic adhesive or rubber adhesive used for the label sheet, even if the acrylic or rubber adhesive is coated on the release paper during the production of the label sheet, the tape No peeling defects occur at the connection points. The pressure-sensitive adhesive tape of the present invention is limited to a combination of an addition-type dimethylpolysiloxane-based silicone pressure-sensitive adhesive and a silicone-based release agent containing a polyorganosiloxane having an alkenyl group. Since the adhesive tape is in contact with the adhesive, the conventional adhesive tape with release liner must be peeled off before use to expose the silicone adhesive surface and attach it to release paper. On the other hand, in the tape of the present invention, since the silicone adhesive is exposed at the same time when the tape is developed, the workability is improved simply by sticking it on the release paper. Further, it has a feature that it is not necessary to dispose of the release liner.

【0013】[0013]

【実施例】次に、実施例及び比較例に基づいて本発明の
粘着テープを説明する。 (実施例1)厚さ25μmのPETフィルムの片面にヘ
キセニル基含有ポリオルガノシロキサンを含有するシリ
コーン系剥離剤(東レ・ダウコーニング・シリコーン社
製、商品名:LTC 750A)を塗工し、150℃で
60秒間加熱硬化させ、厚さ約1.5μmのシリコーン
系剥離剤層を形成した。次にPETフィルムの反対面に
ジメチルポリシロキサン系シリコーン粘着剤(東レ・ダ
ウコーニング・シリコーン社製、商品名:SD−458
0)を塗布し、130℃で2分間加熱硬化させ、厚さ約
50μmのシリコーン系粘着剤層を形成し、シリコーン
系剥離剤層とシリコーン系粘着剤層とを直接対接せしめ
た一層物のシリコーン粘着テープを作成した。
EXAMPLES Next, the adhesive tape of the present invention will be explained based on Examples and Comparative Examples. (Example 1) A 25-μm-thick PET film was coated with a silicone-based release agent (Toray Dow Corning Silicone Co., Ltd., trade name: LTC 750A) containing a hexenyl group-containing polyorganosiloxane on one side and at 150 ° C. At 60 ° C. for 60 seconds to form a silicone release agent layer having a thickness of about 1.5 μm. Next, on the opposite side of the PET film, a dimethylpolysiloxane-based silicone adhesive (manufactured by Toray Dow Corning Silicone Co., Ltd., trade name: SD-458
0) is applied and heated and cured at 130 ° C. for 2 minutes to form a silicone-based pressure-sensitive adhesive layer having a thickness of about 50 μm, and the silicone-based release agent layer and the silicone-based pressure-sensitive adhesive layer are directly contacted with each other. A silicone adhesive tape was made.

【0014】(比較例1)実施例1のシリコーン系剥離
剤を官能基がビニル基であるジメチルポリシロキサン系
剥離剤(東レ・ダウコーニング・シリコーン社製、商品
名:SRX211)とし、他は実施例1に準じて粘着テ
ープを作成した。以上の実施例及び比較例で得た粘着テ
ープについて、養生後、テープの展開性、テープの市販
剥離紙に対する接着性及びテープ背面と粘着ラベル又は
シートに代表的に用いられている市販アクリル溶剤型粘
着剤との剥離性について試験・評価し、その結果を下記
表1にまとめた。
Comparative Example 1 The silicone-based release agent of Example 1 was used as a dimethylpolysiloxane-based release agent having a vinyl group as a functional group (Toray Dow Corning Silicone Co., Ltd., trade name: SRX211). An adhesive tape was prepared according to Example 1. Regarding the adhesive tapes obtained in the above Examples and Comparative Examples, after curing, the developability of the tape, the adhesiveness of the tape to commercially available release paper, and the commercially available acrylic solvent type that is typically used for the tape back surface and the adhesive label or sheet The peelability from the adhesive was tested and evaluated, and the results are summarized in Table 1 below.

【0015】[0015]

【表1】 [Table 1]

【0016】表1中の性能評価試験は次のようにして行
った。 *1 テープ展開性 粘着テープの自背面と粘着剤層の剥離力にて評価 (変形スピード1m/分、剥離角度180°ピール) *2 テープと市販剥離紙との接着性 粘着テープを市販剥離紙(リンテック株式会社製 KP
−8)に2kgローラーにて圧着し、30分放置後の接着
力にて評価(変形スピード0.3m/分、剥離角度18
0°テープ側をピール) *3 外気暴露後のテープ背面の市販アクリル粘着剤に
対する剥離性 粘着テープの自背面を外気暴露(晴天、4時間)後に市
販アクリル溶剤型粘着剤(東洋インキ製造株式会社製、
商品名:BPS−5127)を塗工(約30μmドラ
イ)し、PET50μm を貼り合わせ、剥離力を
測定(変形スピード10m/分、剥離角度180°
PET50μm側をピール)
The performance evaluation test in Table 1 was conducted as follows. * 1 Tape developability Evaluated by the peeling force between the adhesive tape itself and the adhesive layer (deformation speed 1 m / min, peeling angle 180 ° peel) * 2 Adhesion between tape and commercially available release paper Adhesive tape is commercially available release paper (KP manufactured by Lintec Co., Ltd.
-8) was pressure-bonded with a 2 kg roller, and evaluated by the adhesive force after leaving for 30 minutes (deformation speed 0.3 m / min, peeling angle 18
0 ° Peel on the tape side) * 3 Releasability of commercially available acrylic adhesive on the back of the tape after exposure to the outside air After exposing the backside of the adhesive tape to the outside air (sunny weather, 4 hours), a commercially available acrylic solvent adhesive (Toyo Ink Mfg. Co. Made by
Product name: BPS-5127) coated (30 μm dry), PET 50 μm And the peeling force
Measurement (deformation speed 10m / min, peeling angle 180 °
PET 50μm side peeled)

【0017】表1から明らかなように、実施例1で得ら
れた粘着テープの剥離強度は、460g/20mm(変
形スピード=1m/min)であり、テープ展開ができ
た。また外気暴露性も良好であった。しかしながら、比
較例1で得られた粘着テープでは、粘着剤と剥離剤とが
強固に接着し剥離不可能であり、外気暴露性も不良であ
った。
As is clear from Table 1, the peel strength of the adhesive tape obtained in Example 1 was 460 g / 20 mm (deformation speed = 1 m / min), and the tape could be developed. The exposure to the outside air was also good. However, in the pressure-sensitive adhesive tape obtained in Comparative Example 1, the pressure-sensitive adhesive and the release agent were firmly adhered to each other and could not be peeled off, and the exposure to the outside air was also poor.

【0018】[0018]

【発明の効果】本発明の粘着テープによれば、そのテー
プ背面が外気暴露性に優れたシリコーン系剥離剤で剥離
処理されているので、粘着ラベル・シート製造時の剥離
紙接続箇所の剥離トラブルが起きず、またテープに剥離
ライナーが不要のため、作業が簡便でかつライナーの廃
棄処理にも手間どらないという効果を有する。
EFFECTS OF THE INVENTION According to the adhesive tape of the present invention, the back surface of the tape is subjected to a release treatment with a silicone-based release agent having excellent exposure to the outside air. Since the tape does not require a release liner, the work is simple and the disposal of the liner is not time-consuming.

【図面の簡単な説明】[Brief description of drawings]

【図1】 本発明の粘着テープの一実施例の構成を示す
FIG. 1 is a diagram showing a configuration of an embodiment of an adhesive tape of the present invention.

【図2】 従来の粘着テープの構成を示す図FIG. 2 is a diagram showing a structure of a conventional adhesive tape.

【図3】 従来の別の粘着テープの構成を示す図FIG. 3 is a diagram showing the configuration of another conventional adhesive tape.

【符号の説明】[Explanation of symbols]

1 テープ基材 1a 片面 1b 反対面 2 シリコーン系粘着剤層 3 シリコーン系剥離剤層 10 テープ基材 10a 片面 10b 背面 11 シリコーン系粘着剤層 20 テープ基材 20a 片面 20b 背面 21 シリコーン系粘着剤層 22 シリコーン系剥離剤層 23 剥離ライナー 1 Tape Base Material 1a One Side 1b Opposite Side 2 Silicone Adhesive Layer 3 Silicone Release Agent Layer 10 Tape Base Material 10a One Side 10b Back Side 11 Silicone Adhesive Layer 20 Tape Base Material 20a One Side 20b Back Side 21 Silicone Adhesive Layer 22 Silicone release agent layer 23 Release liner

Claims (3)

【特許請求の範囲】[Claims] 【請求項1】 テープ基材の片面にシリコーン系粘着剤
層を設け、その反対面に剥離剤層を設け、該剥離剤層が
直接シリコーン系粘着剤層に対接せしめられている粘着
テープにおいて、該剥離剤層が官能基として炭素数が4
以上のアルケニル基を有する付加型ポリオルガノシロキ
サンを含有するシリコーン系剥離剤からなり、該シリコ
ーン系粘着剤層が付加型ジメチルポリシロキサン系シリ
コーン粘着剤からなることを特徴とする粘着テープ。
1. A pressure-sensitive adhesive tape in which a silicone-based pressure-sensitive adhesive layer is provided on one surface of a tape substrate, and a release-agent layer is provided on the opposite surface thereof, and the release-agent layer is directly contacted with the silicone-based pressure-sensitive adhesive layer. , The release agent layer has 4 carbon atoms as a functional group.
A pressure-sensitive adhesive tape comprising the above silicone-based release agent containing the above-mentioned addition-type polyorganosiloxane having an alkenyl group, wherein the silicone-based pressure-sensitive adhesive layer comprises an addition-type dimethylpolysiloxane-based silicone pressure-sensitive adhesive.
【請求項2】 該アルケニル基含有付加型ポリオルガノ
シロキサンが、次の式: 【化1】 (式中、n=2〜8)である請求項1に記載の粘着テー
プ。
2. The addition-type polyorganosiloxane containing an alkenyl group has the following formula: (In the formula, n = 2 to 8) The pressure-sensitive adhesive tape according to claim 1.
【請求項3】 該アルケニル基がヘキセニル基である請
求項2に記載の粘着テープ。
3. The pressure-sensitive adhesive tape according to claim 2, wherein the alkenyl group is a hexenyl group.
JP21044594A 1994-08-11 1994-08-11 Adhesive tape for splicing release paper Expired - Fee Related JP3469945B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP21044594A JP3469945B2 (en) 1994-08-11 1994-08-11 Adhesive tape for splicing release paper

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP21044594A JP3469945B2 (en) 1994-08-11 1994-08-11 Adhesive tape for splicing release paper

Publications (2)

Publication Number Publication Date
JPH0853656A true JPH0853656A (en) 1996-02-27
JP3469945B2 JP3469945B2 (en) 2003-11-25

Family

ID=16589452

Family Applications (1)

Application Number Title Priority Date Filing Date
JP21044594A Expired - Fee Related JP3469945B2 (en) 1994-08-11 1994-08-11 Adhesive tape for splicing release paper

Country Status (1)

Country Link
JP (1) JP3469945B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10147758A (en) * 1996-11-21 1998-06-02 Toshiba Silicone Co Ltd Adhesive material
JP2003192897A (en) * 2001-12-27 2003-07-09 Dow Corning Toray Silicone Co Ltd Organopolysiloxane composition for forming releasable cured film

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10147758A (en) * 1996-11-21 1998-06-02 Toshiba Silicone Co Ltd Adhesive material
JP2003192897A (en) * 2001-12-27 2003-07-09 Dow Corning Toray Silicone Co Ltd Organopolysiloxane composition for forming releasable cured film

Also Published As

Publication number Publication date
JP3469945B2 (en) 2003-11-25

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