JPH05331436A - Double-sided tacky tape - Google Patents
Double-sided tacky tapeInfo
- Publication number
- JPH05331436A JPH05331436A JP14426892A JP14426892A JPH05331436A JP H05331436 A JPH05331436 A JP H05331436A JP 14426892 A JP14426892 A JP 14426892A JP 14426892 A JP14426892 A JP 14426892A JP H05331436 A JPH05331436 A JP H05331436A
- Authority
- JP
- Japan
- Prior art keywords
- sensitive adhesive
- double
- pressure
- woven fabric
- sided
- 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
- Adhesives Or Adhesive Processes (AREA)
- Adhesive Tapes (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、両面粘着テープに関
し、特に不織布基材及び粘着剤層の耐熱性が高められて
おり、耐熱用途に適した両面粘着テープに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a double-sided pressure-sensitive adhesive tape, and more particularly to a double-sided pressure-sensitive adhesive tape suitable for heat-resistant applications, in which the heat resistance of a non-woven fabric substrate and a pressure-sensitive adhesive layer is enhanced.
【０００２】[0002]
【従来の技術】従来、両面粘着テープとしては、レーヨ
ン及び／またはパルプからなる不織布基材の両面にアク
リル系粘着剤等の粘着剤からなる粘着剤層を積層したも
のが汎用されていた。他方、両面粘着テープは種々の用
途に用いられているが、場合によっては１００℃を超え
る高温雰囲気下で使用されることもある。このような高
温環境の下で使用される両面粘着テープでは、粘着剤層
を構成する粘着剤として耐熱保持力に優れた粘着剤が用
いられる。2. Description of the Related Art Conventionally, as a double-sided pressure-sensitive adhesive tape, one in which a pressure-sensitive adhesive layer made of a pressure-sensitive adhesive such as an acrylic pressure-sensitive adhesive is laminated on both surfaces of a non-woven fabric substrate made of rayon and / or pulp has been widely used. On the other hand, the double-sided pressure-sensitive adhesive tape is used for various purposes, but in some cases, it may be used in a high temperature atmosphere exceeding 100 ° C. In the double-sided pressure-sensitive adhesive tape used under such a high temperature environment, a pressure-sensitive adhesive having excellent heat resistance is used as a pressure-sensitive adhesive forming the pressure-sensitive adhesive layer.
【０００３】しかしながら、従来の両面粘着テープで
は、基材がレーヨン及び／またはパルプからなる不織布
基材を用いて構成されているため、１２０℃〜１４０℃
程度の雰囲気に放置されていると基材の炭化が進行し、
基材強度が著しく低下するという問題があった。そこ
で、耐熱用途に適した両面粘着テープとして、ガラス繊
維からなる基材を用いたものが提案されている。しかし
ながら、ガラス基材からなる基材を用いた場合には、基
材の厚みが厚くなり、柔軟性が低下し、かつコストも非
常に高くつくという問題があった。したがって、ガラス
繊維を基材として用いた両面粘着テープは、耐熱性にお
いてこそ優れているものの、その用途が著しい制限され
ていた。However, in the conventional double-sided pressure-sensitive adhesive tape, since the base material is composed of a non-woven fabric base material made of rayon and / or pulp, 120 ° C. to 140 ° C.
If left in an atmosphere of a certain degree, carbonization of the base material proceeds,
There is a problem that the strength of the base material is significantly reduced. Therefore, as a double-sided pressure-sensitive adhesive tape suitable for heat-resistant use, one using a substrate made of glass fiber has been proposed. However, when a base material made of a glass base material is used, there is a problem that the thickness of the base material is increased, flexibility is lowered, and cost is very high. Therefore, the double-sided pressure-sensitive adhesive tape using glass fiber as a base material is excellent in heat resistance, but its use is significantly limited.
【０００４】[0004]
【発明が解決しようとする課題】本発明の目的は、基材
の柔軟性を損なうことなく、しかも安価に供給すること
ができる、耐熱性に優れた両面粘着テープを提供するこ
とにある。SUMMARY OF THE INVENTION An object of the present invention is to provide a double-sided pressure-sensitive adhesive tape having excellent heat resistance, which can be supplied at low cost without impairing the flexibility of the substrate.
【０００５】[0005]
【課題を解決するための手段】本願発明者は、上記課題
を達成すべく鋭意検討した結果、基材としてポリエステ
ルを主成分とする不織布基材を用いれば、上記課題を達
成し得ることを見出し、本発明を成すに至った。ただ
し、本発明の両面粘着テープは、ポリエステルを主成分
とする不織布基材と、該不織布基材の両面に形成されて
おり、かつ耐熱保持力が１００℃以上のアクリル系粘着
剤よりなる粘着剤層とを備えることを特徴とする。Means for Solving the Problems The inventors of the present application have made earnest studies to achieve the above object, and as a result, found that the above object can be achieved by using a non-woven fabric substrate containing polyester as a main component. The present invention has been accomplished. However, the double-sided pressure-sensitive adhesive tape of the present invention is a pressure-sensitive adhesive comprising a non-woven fabric base material containing polyester as a main component and an acrylic pressure-sensitive adhesive formed on both sides of the non-woven fabric base material and having a heat resistance holding power of 100 ° C. or more. And a layer.
【０００６】不織布基材 上記のように、本発明では、ポリエステルを主成分とす
る不織布基材が用いられる。ポリエステルを主成分とす
る不織布基材を用いるのは、耐熱性を高めるためであ
り、該ポリエステルを主成分とする不織布基材を用いる
ことにより、１００℃を超える高温雰囲気下における機
械的強度の低下を防止することができる。用い得る上記
ポリエステルを主成分とする不織布基材としては、ポリ
エステルのみから成るものであってもよく、あるいはポ
リエステルの他にレーヨン、パルプ、ビニロン等を副成
分として含むものであってもよい。もっとも、十分な耐
熱性を発揮させるには、ポリエステルの含有量が５０重
量％以上であることが必要である。なお、ポリエステル
を主成分とする不織布基材としては、好ましくは、８〜
２４ｇ／ｃｍ2 程度の坪量のものが用いられる。 Nonwoven Fabric Substrate As described above, in the present invention, a nonwoven fabric substrate containing polyester as a main component is used. The reason why the non-woven fabric base material containing polyester as the main component is used is to increase heat resistance, and the use of the non-woven fabric base material containing polyester as the main component lowers the mechanical strength in a high temperature atmosphere exceeding 100 ° C. Can be prevented. The non-woven fabric substrate containing polyester as the main component that can be used may be made of only polyester, or may contain rayon, pulp, vinylon or the like as an accessory component in addition to polyester. However, in order to exert sufficient heat resistance, the polyester content must be 50% by weight or more. The non-woven fabric base material containing polyester as a main component is preferably 8 to
A grammage of about 24 g / cm 2 is used.
【０００７】粘着剤層 本発明の両面粘着テープでは、耐熱保持力が１００℃以
上のアクリル系粘着剤により粘着剤層が構成されてい
る。ここで、この耐熱保持力とは、ＪＩＳ Ｚ０２３７
と同様に試験片を試験板に圧着後（接着面積２０ｍｍ×
２０ｍｍ）、１００±２℃の熱風循環式恒温箱中に６０
分間放置した後、同温度で１０００±１０ｇの荷重をか
け２４時間後荷重を除き、ずれた距離を測定した値を意
味し、該耐熱保持力試験において１ｍｍ以上の糊の染み
だしがない高凝集力の粘着剤が用いられる。 Pressure-sensitive adhesive layer In the double-sided pressure-sensitive adhesive tape of the present invention, the pressure-sensitive adhesive layer is composed of an acrylic pressure-sensitive adhesive having a heat-resistant holding power of 100 ° C. or higher. Here, this heat-resistant holding power means JIS Z0237.
After crimping the test piece to the test plate in the same manner as above (bonding area 20 mm x
20mm), 60 in a hot air circulation type constant temperature box of 100 ± 2 ℃
After being left for a minute, a load of 1000 ± 10 g was applied at the same temperature, and after 24 hours, the load was removed and the displaced distance was measured. In the heat resistance holding test, a high cohesion with no exudation of glue of 1 mm or more. A force adhesive is used.
【０００８】[0008]
【作用】ポリエステルを主成分とする不織布は、上記の
ように耐熱性に優れており、１００℃を超える雰囲気下
に置かれたとしても炭化等を生じることがなく、かつ機
械的強度の低下も生じ難い。また、ポリエステルを主成
分とする不織布基材は、ガラス繊維よりなる不織布基材
に比べて柔軟性の点においても優れている。本発明の両
面粘着テープでは、上記耐熱性及び柔軟性に優れたポリ
エステルを主成分とする不織布基材の両面に、耐熱保持
力が１００℃以上の粘着剤層が形成されているため、１
００℃を超える雰囲気下に置かれたとしても、あるいは
１００℃を超える雰囲気下で使用し、垂直方向及び水平
方向の何れに荷重が加わったとしても、粘着剤の特性を
十分に発揮させることができ、かつ接着強度の低下も生
じ難い。The non-woven fabric containing polyester as the main component has excellent heat resistance as described above, and does not cause carbonization or the like even when placed in an atmosphere exceeding 100 ° C., and also has a reduced mechanical strength. Hard to happen. Further, the non-woven fabric substrate containing polyester as a main component is also superior in flexibility as compared with the non-woven fabric substrate made of glass fiber. In the double-sided pressure-sensitive adhesive tape of the present invention, a pressure-sensitive adhesive layer having a heat-resistant holding power of 100 ° C. or higher is formed on both sides of the above-mentioned nonwoven fabric base material mainly composed of polyester having excellent heat resistance and flexibility.
Even if it is placed in an atmosphere exceeding 00 ° C, or used in an atmosphere exceeding 100 ° C, and the load is applied in either the vertical direction or the horizontal direction, it is possible to fully exhibit the characteristics of the adhesive. In addition, the adhesive strength is less likely to decrease.
【０００９】[0009]
【実施例の説明】以下、本発明の実施例及び比較例を挙
げることにより、本発明を明らかにする。実施例 厚さ４０μｍのポリエステル不織布（広瀬製紙社製、商
品名：Ｏ５ＴＨ−１２）を不織布基材として用意した。
この不織布基材のボールタック、ＳＰ粘着力及びＪＩＳ
保持力（ＪＩＳ Ｚ０２３７に基づいて測定された値）
は、下記の表１に示す通りである。EXAMPLES The present invention will be clarified by giving Examples and Comparative Examples of the present invention. Example A polyester non-woven fabric having a thickness of 40 μm (manufactured by Hirose Paper Co., Ltd., trade name: O5TH-12) was prepared as a non-woven fabric substrate.
Ball tack of this non-woven fabric base material, SP adhesion and JIS
Holding power (value measured based on JIS Z0237)
Is as shown in Table 1 below.
【００１０】耐熱アクリル系粘着剤〔綜研化学社製、商
品名：ＳＫダイン１３８６、ＪＩＳＺ０２３７と同様に
試験片を試験板に圧着後（但し、接着面積は２０ｍｍ×
２０ｍｍ）、任意の温度で荷重をかけ２４時間後のずれ
が１．０ｍｍ以内のずれ値を示す最高温度による耐熱保
持力＝１６０℃〕を、厚さ６５μｍとなるように離型紙
上にキャスティングし、８０℃の温度で３分間ギアオー
ブン中で乾燥させた。上記のようにして乾燥して得られ
た粘着剤フィルムに、線圧０．５ｋｇ／ｃｍ程度の圧力
で上記不織布基材を貼り合わせ、該不織布基材の反対面
に、同様に乾燥された粘着剤フィルムを貼り合わせて両
面テープを作製した。しかる後、上記両面粘着テープを
２３℃及び相対湿度６５％の環境の下に１週間放置し、
測定用試料とした。Heat-resistant acrylic pressure-sensitive adhesive [manufactured by Soken Chemical Industry Co., Ltd., trade name: SK Dyne 1386, JIS Z0237 and the test piece after pressure bonding to the test plate (however, the bonding area is 20 mm ×
20 mm), a load is applied at an arbitrary temperature, and a shift value after 24 hours shows a shift value within 1.0 mm. Heat-resistant holding power at maximum temperature = 160 ° C.] is cast on a release paper to a thickness of 65 μm. Dried in a gear oven for 3 minutes at a temperature of 80 ° C. The above-mentioned non-woven fabric substrate was attached to the pressure-sensitive adhesive film obtained by drying as described above at a linear pressure of about 0.5 kg / cm, and the same dried adhesive was applied to the opposite surface of the non-woven fabric substrate. A double-sided tape was produced by bonding the agent films. Then, the double-sided pressure-sensitive adhesive tape is left for 1 week in an environment of 23 ° C. and 65% relative humidity,
It was used as a measurement sample.
【００１１】比較例１ 不織布基材として、厚さ４５μｍのレーヨン不織布（日
本紙業社製、商品名：ＳＰＣ＃１４）を用いたことを除
いては、実施例と同様にして両面粘着テープを作製し、
実施例と同様にして測定用試料を作製した。なお、下記
の表１において、上記レーヨン不織布のボールタック、
ＳＰ粘着力及びＪＩＳ保持力を示す。 Comparative Example 1 A double-sided pressure-sensitive adhesive tape was prepared in the same manner as in Example except that a rayon nonwoven fabric having a thickness of 45 μm (manufactured by Nippon Paper Industries Co., Ltd., trade name: SPC # 14) was used as the nonwoven fabric substrate. Made,
A measurement sample was prepared in the same manner as in the example. In Table 1 below, the ball tack of the rayon nonwoven fabric,
The SP adhesive strength and JIS holding power are shown.
【００１２】比較例２ 不織布基材として、厚さ４４μｍのマニラ麻不織布（日
本紙業社製、商品名：Ｆ原紙）を用いたことを除いて
は、実施例と同様にして両面粘着テープを作製し、かつ
実施例と同様にして測定用試料を作製した。なお、上記
マニラ麻不織布のボールタック、ＳＰ粘着力及びＪＩＳ
保持力は下記の表１に示す通りである。 Comparative Example 2 A double-sided pressure-sensitive adhesive tape was prepared in the same manner as in Example except that a 44-μm-thick Manila hemp nonwoven fabric (manufactured by Nippon Paper Industries Co., Ltd., trade name: F base paper) was used as the nonwoven fabric substrate. Then, a measurement sample was prepared in the same manner as in the example. In addition, the ball tack of the Manila hemp nonwoven fabric, SP adhesive strength and JIS
The holding power is as shown in Table 1 below.
【００１３】評価 上記のようにして得た実施例及び比較例１，２の測定用
試料につき、１２０℃における保持力及び１４０℃にお
ける保持力を以下の要領で測定した。 １２０℃保持力…ＪＩＳ Ｚ０２３７に準じ、但し接
着面積を２０ｍｍ×２０ｍｍ、重りの荷重を１ｋｇと
し、接着部を１２０℃において２４時間放置した後の接
着部分のずれた距離を測定した。 １４０℃保持力…１２０℃保持力と同様にし、ただし
１４０℃×２４時間経過後の接着部分の面積のずれを測
定することにより評価した。 Evaluation The holding power at 120 ° C. and the holding power at 140 ° C. of the measurement samples of Examples and Comparative Examples 1 and 2 obtained as described above were measured in the following manner. 120 ° C holding power: According to JIS Z0237, the bonded area was 20 mm x 20 mm, the weight load was 1 kg, and the displaced distance of the bonded part was measured after leaving the bonded part at 120 ° C for 24 hours. 140 ° C. holding power ... Same as 120 ° C. holding power, but evaluated by measuring the deviation of the area of the bonded portion after 140 ° C. × 24 hours.
【００１４】上記１２０℃保持力及び１４０℃保持力に
ついての測定結果を下記の表１に示す。また、実施例及
び比較例１，２で得た各測定用試料を、１２０℃に１週
間放置した後、並びに１４０℃で１週間放置した後に、
下記の要領でＴ型剥離力を測定すると共に、色調を観察
した。結果を下記の表１に併せて示す。 Ｔ型剥離力…厚み０．３ｍｍ×２０ｍｍ×１００ｍｍの
アルミニウム板を両面粘着テープで貼り合わせ、１２０
℃あるいは１４０℃の温度で１週間放置した後、ＪＩＳ
Ｋ ６８５４に準じてＴ型剥離力を測定した。Table 1 below shows the measurement results of the above 120 ° C. holding power and 140 ° C. holding power. In addition, after leaving each measurement sample obtained in Examples and Comparative Examples 1 and 2 at 120 ° C. for 1 week and after leaving at 140 ° C. for 1 week,
The T-type peeling force was measured and the color tone was observed in the following manner. The results are also shown in Table 1 below. T-type peeling force: An aluminum plate with a thickness of 0.3 mm × 20 mm × 100 mm is attached with a double-sided adhesive tape,
After leaving for 1 week at ℃ or 140 ℃, JIS
The T-peel strength was measured according to K 6854.
【００１５】[0015]
【表１】 [Table 1]
【００１６】なお、表１における不織布基材のボールタ
ック、ＳＰ粘着力及びＪＩＳ保持力は、それぞれ、ＪＩ
Ｓ Ｚ０２３７により測定されたものである。表１から
明らかなように、比較例１，２の両面粘着テープでは、
１２０℃及び１４０℃でそれぞれ１週間放置した後基材
の色調が茶色に変化し、かつＴ型剥離力も低下し、特に
１４０℃で１週間放置した後にはアンカー破壊（表１に
おいてＡＣで示す）の生じていることがわかる。これに
対して、実施例の両面粘着テープでは、１２０℃及び１
４０℃の何れの温度に１週間放置した後であっても、若
干の黄変が観られただけであり、かつＴ型剥離力も殆ど
低下しなかった。The ball tack, SP adhesive strength and JIS holding power of the non-woven fabric base material in Table 1 are respectively JI
It was measured by S Z0237. As is clear from Table 1, in the double-sided adhesive tapes of Comparative Examples 1 and 2,
After being left at 120 ° C and 140 ° C for 1 week, respectively, the color tone of the base material changed to brown and the T-type peeling force was decreased, and the anchor was broken (indicated by AC in Table 1) especially after being left at 140 ° C for 1 week. It can be seen that On the other hand, the double-sided pressure-sensitive adhesive tape of the example has a temperature of 120 ° C. and 1
Even after being left at any temperature of 40 ° C. for 1 week, only a slight yellowing was observed, and the T-type peeling force was hardly reduced.
【００１７】[0017]
【発明の効果】以上のように、本発明では、ポリエステ
ルを主成分とする不織布基材を用いているため、基材の
柔軟性を損なうことなく耐熱性が高められる。また、こ
のように耐熱性が高められた不織布基材の両面に耐熱保
持力が１００℃以上のアクリル系粘着剤により粘着剤層
が構成されているため、高温環境下における粘着力、特
にＴ型剥離力がレーヨンや麻等からなる不織布基材を用
いた従来の両面粘着テープに比べて著しく高められる。As described above, in the present invention, since the non-woven fabric base material containing polyester as the main component is used, the heat resistance can be enhanced without impairing the flexibility of the base material. In addition, since the pressure-sensitive adhesive layer is composed of an acrylic pressure-sensitive adhesive having a heat-resistant holding power of 100 ° C. or more on both surfaces of the non-woven fabric substrate having the improved heat resistance as described above, the pressure-sensitive adhesive force in a high temperature environment, particularly T type The peeling force is remarkably enhanced as compared with the conventional double-sided pressure-sensitive adhesive tape using a non-woven fabric substrate made of rayon, linen or the like.
【００１８】また、ポリエステルのみからなる不織布を
用いた場合には、バインダー樹脂を含有していないた
め、粘着剤の含浸性が良好であり、したがって両面粘着
テープを構成した場合の基材と粘着剤層との間の密着強
度を高めることができる。同様に、粘着剤の含浸性が優
れているため、各種の打ち抜き加工適性においても優れ
た両面粘着テープを提供することができる。Further, when a non-woven fabric made of only polyester is used, it does not contain a binder resin, so that the impregnating property of the pressure-sensitive adhesive is good. Therefore, when the double-sided pressure-sensitive adhesive tape is constituted, the base material and the pressure-sensitive adhesive are used. The adhesion strength between the layers can be increased. Similarly, since the pressure-sensitive adhesive has an excellent impregnating property, it is possible to provide a double-sided pressure-sensitive adhesive tape having excellent suitability for various punching processes.
Claims (1)
と、該不織布基材の両面に積層されており、かつ耐熱保
持力が１００℃以上のアクリル系粘着剤よりなる粘着剤
層とを備えることを特徴とする、両面粘着テープ。1. A non-woven fabric substrate comprising polyester as a main component, and a pressure-sensitive adhesive layer laminated on both sides of the non-woven fabric substrate and made of an acrylic pressure-sensitive adhesive having a heat-resistant holding power of 100 ° C. or more. A double-sided adhesive tape characterized by.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14426892A JPH05331436A (en) | 1992-06-04 | 1992-06-04 | Double-sided tacky tape |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14426892A JPH05331436A (en) | 1992-06-04 | 1992-06-04 | Double-sided tacky tape |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH05331436A true JPH05331436A (en) | 1993-12-14 |
Family
ID=15358141
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14426892A Pending JPH05331436A (en) | 1992-06-04 | 1992-06-04 | Double-sided tacky tape |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH05331436A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09132330A (en) * | 1995-11-07 | 1997-05-20 | Fuji Photo Film Co Ltd | Magazine |
| ES2149690A1 (en) * | 1994-11-25 | 2000-11-01 | Beiersdorf Ag | Adhesive tape based on non-woven fabric |
| JP2000319614A (en) * | 1999-05-12 | 2000-11-21 | Okamoto Ind Inc | Double-sided adhesive tape |
| WO2006113488A1 (en) * | 2005-04-15 | 2006-10-26 | 3M Innovative Properties Company | Double coated pressure-sensitive adhesive tape |
-
1992
- 1992-06-04 JP JP14426892A patent/JPH05331436A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ES2149690A1 (en) * | 1994-11-25 | 2000-11-01 | Beiersdorf Ag | Adhesive tape based on non-woven fabric |
| JPH09132330A (en) * | 1995-11-07 | 1997-05-20 | Fuji Photo Film Co Ltd | Magazine |
| JP2000319614A (en) * | 1999-05-12 | 2000-11-21 | Okamoto Ind Inc | Double-sided adhesive tape |
| WO2006113488A1 (en) * | 2005-04-15 | 2006-10-26 | 3M Innovative Properties Company | Double coated pressure-sensitive adhesive tape |
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