JPH01308471A - Fibrous pressure-sensitive adhesive body and its pressure-sensitive layer - Google Patents
Fibrous pressure-sensitive adhesive body and its pressure-sensitive layerInfo
- Publication number
- JPH01308471A JPH01308471A JP63138996A JP13899688A JPH01308471A JP H01308471 A JPH01308471 A JP H01308471A JP 63138996 A JP63138996 A JP 63138996A JP 13899688 A JP13899688 A JP 13899688A JP H01308471 A JPH01308471 A JP H01308471A
- Authority
- JP
- Japan
- Prior art keywords
- pressure
- sensitive adhesive
- fibrous
- layer
- sensitive
- 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
Links
- 239000004820 Pressure-sensitive adhesive Substances 0.000 title claims abstract description 132
- 239000010410 layer Substances 0.000 claims abstract description 58
- 239000002356 single layer Substances 0.000 claims abstract description 19
- 239000011247 coating layer Substances 0.000 claims abstract description 18
- 238000000465 moulding Methods 0.000 claims abstract description 7
- 239000004745 nonwoven fabric Substances 0.000 claims abstract description 6
- 238000003825 pressing Methods 0.000 claims abstract description 6
- 230000001070 adhesive effect Effects 0.000 claims description 26
- 239000000853 adhesive Substances 0.000 claims description 25
- 239000000835 fiber Substances 0.000 abstract 2
- 239000000463 material Substances 0.000 description 12
- 239000002390 adhesive tape Substances 0.000 description 11
- 238000000034 method Methods 0.000 description 5
- 230000035699 permeability Effects 0.000 description 5
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 239000011162 core material Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000000704 physical effect Effects 0.000 description 3
- VSKJLJHPAFKHBX-UHFFFAOYSA-N 2-methylbuta-1,3-diene;styrene Chemical compound CC(=C)C=C.C=CC1=CC=CC=C1.C=CC1=CC=CC=C1 VSKJLJHPAFKHBX-UHFFFAOYSA-N 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000012188 paraffin wax Substances 0.000 description 2
- 238000003892 spreading Methods 0.000 description 2
- 239000011800 void material Substances 0.000 description 2
- 229920002126 Acrylic acid copolymer Polymers 0.000 description 1
- 206010014405 Electrocution Diseases 0.000 description 1
- 239000004831 Hot glue Substances 0.000 description 1
- VVQNEPGJFQJSBK-UHFFFAOYSA-N Methyl methacrylate Chemical compound COC(=O)C(C)=C VVQNEPGJFQJSBK-UHFFFAOYSA-N 0.000 description 1
- 230000001464 adherent effect Effects 0.000 description 1
- 235000013405 beer Nutrition 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- CQEYYJKEWSMYFG-UHFFFAOYSA-N butyl acrylate Chemical compound CCCCOC(=O)C=C CQEYYJKEWSMYFG-UHFFFAOYSA-N 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 239000003431 cross linking reagent Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010894 electron beam technology Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000012943 hotmelt Substances 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- PNJWIWWMYCMZRO-UHFFFAOYSA-N pent‐4‐en‐2‐one Natural products CC(=O)CC=C PNJWIWWMYCMZRO-UHFFFAOYSA-N 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 229920006267 polyester film Polymers 0.000 description 1
- 229920001228 polyisocyanate Polymers 0.000 description 1
- 239000005056 polyisocyanate Substances 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- 239000013077 target material Substances 0.000 description 1
- 238000009827 uniform distribution Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Landscapes
- Adhesive Tapes (AREA)
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
本発明は、部分的接若処理などに好適な単層構造又は複
層構造の繊維状感圧接着体、及びその繊維状感圧接着体
を多孔構造に展開してなり、通気性、通液性等の物流性
を有する感圧接ｒｊ層に関する。DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a fibrous pressure-sensitive adhesive having a single-layer structure or a multi-layer structure suitable for partial electrocution treatment, etc., and a fibrous pressure-sensitive adhesive having a porous structure. The present invention relates to a pressure-sensitive contact RJ layer that is developed in a structure and has physical properties such as air permeability and liquid permeability.
従来の、技術及び課題
従来、ｍ雄状に成形された接着剤としては、糸からなる
芯材の外周にホットメルト接着剤を設け、これをパラフ
ィンで被覆してなるものが知られていた（実公昭３９−
３７０７０号公報）。しかし、感圧接着剤からなるもの
は知られていない。ポットメルト接着剤では加熱装置が
必要であったり、被若体に耐熱性が要求されるなど、制
約が大きい難点がある。Conventional techniques and problems Conventionally, as an adhesive molded into a male shape, one was known in which a hot melt adhesive was provided around the outer periphery of a core material made of thread, and this was coated with paraffin ( Actual public school 39-
Publication No. 37070). However, one made of pressure-sensitive adhesive is not known. Pot-melt adhesives have many limitations, such as the need for a heating device and the need for heat resistance on the target material.
一方、パターンマスクを介し支持基材に感圧接着剤をパ
ターン塗工してなるものも知られているが、その製造課
程における感圧接着剤のマスクへの無駄付着、その付着
によるマスクの繰り返し使用の制約などの点もさりなが
ら、多孔構造の感圧接着層の形成が困難、な問題点があ
った。感圧接着剤のマイクロカプセル化が考えられるが
、高度な製造技術や特殊な装置等が必要で、また多量生
産も困難である。On the other hand, there are also known products in which a pattern of pressure-sensitive adhesive is coated on a support substrate through a pattern mask, but during the manufacturing process, the pressure-sensitive adhesive is wastefully attached to the mask, and the mask is repeatedly reused due to the adhesion. In addition to restrictions on use, there was a problem in that it was difficult to form a pressure-sensitive adhesive layer with a porous structure. Microcapsulation of pressure-sensitive adhesives is considered, but it requires advanced manufacturing technology and special equipment, and is difficult to mass produce.
課題を解決するた°めの手段
本発明は、感圧接着剤を繊維状に成形することにより上
記の課題を克服したものである。Means for Solving the Problems The present invention overcomes the above problems by forming a pressure sensitive adhesive into a fibrous form.
すなわち、本発明は、感圧接着剤を繊維状に成形してな
る成形体からなり、そのｍｍ、状成形体が単層構造であ
ることを特徴とする繊維状感圧接着体、及び
前記の繊維状感圧接着体の外側に、押圧処理ないし伸長
処理により破壊できる低タック性ないし非粘着性の被覆
層を設けてなる複層構造の繊維状感圧接着体、並びに
前記した単層構造、？ａＸＪＷＪ造の繊維状感圧接着体
を多孔構造に展開してなることを特徴とする感圧接着層
、及び
前記の多孔構造が、繊維状感圧接着体を不織布状に配置
した層構造を有して、層構造内にも空隙を有することを
特徴とする感圧接着層を提供するしのである。That is, the present invention provides a fibrous pressure-sensitive adhesive, comprising a molded product formed by molding a pressure-sensitive adhesive into a fibrous shape, characterized in that the mm-shaped molded product has a single-layer structure, and the above-mentioned A fibrous pressure-sensitive adhesive having a multi-layer structure, which is formed by providing a low-tack or non-adhesive coating layer on the outside of the fibrous pressure-sensitive adhesive that can be destroyed by pressure treatment or stretching treatment, as well as the above-mentioned single-layer structure, ? A pressure-sensitive adhesive layer is characterized in that it is formed by expanding a fibrous pressure-sensitive adhesive of aXJWJ structure into a porous structure, and the porous structure has a layered structure in which the fibrous pressure-sensitive adhesive is arranged in a nonwoven fabric. Accordingly, the present invention provides a pressure-sensitive adhesive layer characterized by having voids within the layer structure.
作用
感圧接着剤を繊維状に成形することにより、その成形体
を用いて適宜なパターンを有する感圧接着層を容易に形
成することができる。上記した複層構造の繊維状感圧接
着体の場合には、そのうえに初期接着力が弱いか無いの
で取り扱いが容易であり、被着体の位置合せを高精度に
行うことができる。By molding the working pressure-sensitive adhesive into a fibrous shape, a pressure-sensitive adhesive layer having an appropriate pattern can be easily formed using the molded product. In the case of the above-mentioned multilayer structure fibrous pressure-sensitive adhesive, the initial adhesive force is weak or non-existent, so handling is easy and the positioning of the adherend can be performed with high precision.
また、多孔構造の感圧接着層も容易に形成することがで
きる。その多孔構造を不織布状の形態とした場合には、
層内にも空隙を設けることができて気体や液体等の物流
路として利用できる。Furthermore, a pressure-sensitive adhesive layer having a porous structure can be easily formed. When the porous structure is made into a non-woven fabric,
Voids can also be provided within the layer and can be used as distribution channels for gas, liquid, etc.
実施例
第１図に、本発明の単層構造からなる繊維状感圧接着体
１を例示した。また第２図に、外側に被覆層２を設けた
複層構造からなる繊維状−感圧接着体３を例示した。か
かる単層構造の繊維状感圧接着体の形成は例えば、加熱
溶融するなり、必要に応じ溶媒を加えるなどして液状物
ないし流動物とした感圧接着剤を、１個又は２個以上の
吐出し孔を有するノズルを介して押出成形する方法など
により行うことができる。また、Ｎ１ｍ構造の繊維状感
圧接着体は例えば、前記のノズルとして二重構造の吐出
し孔を有するものを用い、その外側の吐出し孔に通じる
ホッパ等の材料供給部に被覆層形成材を供給することに
より形成することができる。EXAMPLE FIG. 1 illustrates a fibrous pressure-sensitive adhesive 1 having a single-layer structure according to the present invention. Further, FIG. 2 shows an example of a fibrous pressure-sensitive adhesive 3 having a multilayer structure with a coating layer 2 provided on the outside. The formation of such a fibrous pressure-sensitive adhesive having a single-layer structure can be achieved by, for example, heating and melting the pressure-sensitive adhesive or adding a solvent as necessary to make a liquid or fluidized pressure-sensitive adhesive into one or more pieces. This can be carried out by extrusion molding through a nozzle having a discharge hole. In addition, for the fibrous pressure-sensitive adhesive having the N1m structure, for example, the above-mentioned nozzle has a double-structured discharge hole, and the coating layer forming material is placed in a material supply section such as a hopper leading to the outer discharge hole. can be formed by supplying
用いる感圧接着剤について特に限定はない。アクリル系
感圧接着剤、ゴム系感圧接着剤、スチレン・イソプレン
・スチレン（ＳＩＳ）系感圧接着剤、シリコーン系感圧
接着剤など、いずれの感圧接着剤も用いうる。適宜な充
填剤や薬剤等を配合した系などとしてもよい。繊維状感
圧接着体の径や断面形状も適宜に決定してよい。一般に
は、外径に基づき１１ｗ以下、就中０．５〜５００μｍ
とされる。There are no particular limitations on the pressure sensitive adhesive used. Any pressure-sensitive adhesive may be used, such as an acrylic pressure-sensitive adhesive, a rubber-based pressure-sensitive adhesive, a styrene-isoprene-styrene (SIS)-based pressure-sensitive adhesive, or a silicone-based pressure-sensitive adhesive. It may also be a system containing appropriate fillers, drugs, etc. The diameter and cross-sectional shape of the fibrous pressure-sensitive adhesive may also be determined as appropriate. Generally, based on the outer diameter, it is 11w or less, especially 0.5 to 500μm
It is said that
複層構造の繊維状感圧接着体３における被覆層２は、内
部を形成する感圧接着剤（１）よりも低タック性の粘着
材料、あるいはタック性を示さない非粘着性の材料で形
成される。これにより、初期状態においては接着力が弱
いか、接着力を有しないらのとすることができて、位置
変え時、ないし配置パターンの変更時等における取り扱
い性が良くなり、貼り直しや位置合せが容易となる。複
層構造の繊維状感圧接着体は、その被覆層の接着特性に
基づき適宜に使い分けてよい。例えば、低タック性の被
覆層を有する繊維状感圧接着体は、支持基村上にそれを
設けて粘着テープ等として使用する場合や、感圧接着層
を形成する繊維状感圧接着体同士に予備的な接着力を付
与する場合などに有利に用いられる。一方、非粘着性の
被覆層を有する繊維状感圧接着体は、そのまま用いて被
着体を部分接着する場合などに有利に用いられる。The coating layer 2 in the fibrous pressure-sensitive adhesive body 3 having a multilayer structure is made of an adhesive material with lower tack than the pressure-sensitive adhesive (1) forming the inside, or a non-adhesive material that does not exhibit tack. be done. This allows the adhesive to be weak or non-adhesive in the initial state, making it easier to handle when changing the position or changing the layout pattern, and making it easier to reposition or align. becomes easier. The fibrous pressure-sensitive adhesive having a multilayer structure may be used as appropriate based on the adhesive properties of its coating layer. For example, a fibrous pressure-sensitive adhesive having a low-tack coating layer may be used as an adhesive tape by providing it on a support base, or when fibrous pressure-sensitive adhesives that form a pressure-sensitive adhesive layer are used together. It is advantageously used when providing preliminary adhesive strength. On the other hand, a fibrous pressure-sensitive adhesive having a non-adhesive coating layer is advantageously used as is when partially adhering an adherend.
なお、低タック性の被覆層を形成するための粘着材料と
しては通常、低タツク組成の感圧接着剤が用いられるが
、これに限定されない。感圧接着剤が紫外線硬化型のも
のからなる場合などには、その表層部分を硬化処理して
被覆層とすることもできる。また、電子線等による表層
硬化によっても被覆層を形成することができる。非粘着
性の被覆層の形成材料としては、プラスチックやパラフ
ィンなどが一般に用いられるが、これに限定されない。Note that as the adhesive material for forming the low-tack coating layer, a pressure-sensitive adhesive with a low-tack composition is usually used, but the adhesive material is not limited thereto. When the pressure-sensitive adhesive is of an ultraviolet curing type, the surface layer portion thereof can be cured to form a coating layer. The coating layer can also be formed by surface curing using an electron beam or the like. Plastics, paraffin, and the like are generally used as materials for forming the non-adhesive coating layer, but the material is not limited thereto.
上記に加えて、複層構造の繊維状感圧接着体３における
被覆層２は、押圧処理又は伸長処理により破壊できるよ
うに形成される。これにより、被覆層の破壊で内部の感
圧接着剤が露出し、より強い接着力が発現する。道具を
用いない、手ないし指による押圧処理ないし伸長処理に
より破壊する点よりは、材料強度にもよるが一般には、
０．０１〜３０ｎｓ就中０．０５〜ｌＯμｍの厚さから
なる被覆層とすることが適当である。In addition to the above, the covering layer 2 in the fibrous pressure-sensitive adhesive body 3 having a multilayer structure is formed so as to be broken by a pressing process or a stretching process. As a result, the pressure-sensitive adhesive inside is exposed when the coating layer is destroyed, and stronger adhesive force is developed. Although it depends on the strength of the material, in general, rather than breaking it by pressing or stretching it with your hands or fingers without using any tools,
It is appropriate that the coating layer has a thickness of 0.05 to 10 μm in 0.01 to 30 ns.
単層構造、複層構造の繊維状感圧接着体の使用方法ない
し使用形態は任意である。従って、繊維状感圧接着体の
展開形態も任意である。The fibrous pressure-sensitive adhesive having a single-layer structure or a multi-layer structure may be used in any manner or in any manner. Therefore, the unfolded form of the fibrous pressure-sensitive adhesive is also arbitrary.
本発明では、その展開形態として、多孔構造に展開した
感圧接着層を提供する。その多孔構造の形態は適宜に決
定してよい。繊維状感圧接着体１（３）を第３図のよう
に、規則的に配置した単層形態、あるいは第４図のよう
に、ランダムに配置した単層形態、さらには繊維状感圧
接着体が重なり合った配置による複層形態などが代表例
としてあげられる。なお、図中の４は支持基材などの被
着体である。展開した繊維状感圧接着体を容易に剥Ｒ１
ｆｆ１去できるセパレータなどを用いた場合には、単層
構造の繊維状感圧接着体１からなる感圧接着層の場合に
もそれを引き剥がして独立物として使用したり、他の被
着体に転写したりすることが可能になる。また、単層構
造の繊維状感圧接着体１からなる感圧接着層の取り扱い
性を良くする点よりは、Ｔ％５図のように、単層構造の
繊維状感圧接着体１からなる感圧接着層６の上下に、複
層構造の繊維状感圧接着体３からなる感圧接着層５を設
けてサンドイッチ構造としてもよい。もちろん、被着体
の上に直接、当該感圧接着層６を設けた形態などの場合
には、その感圧接着７ｉ１！１６の残る片側に当該感圧
接着層５を設けるのみでよい。The present invention provides a pressure-sensitive adhesive layer developed into a porous structure as its developed form. The form of the porous structure may be determined as appropriate. A single layer form in which the fibrous pressure-sensitive adhesive 1 (3) is arranged regularly as shown in Figure 3, a single layer form in which it is randomly arranged as shown in Fig. 4, and even a fibrous pressure-sensitive adhesive A typical example is a multi-layer structure in which the bodies overlap. Note that 4 in the figure represents an adherend such as a support base material. Easily peel off the developed fibrous pressure sensitive adhesive R1
If a separator or the like that can be peeled off is used, even in the case of a pressure-sensitive adhesive layer consisting of a single-layer structure fibrous pressure-sensitive adhesive 1, it can be peeled off and used as an independent object, or it can be used as an independent object or attached to other adherends. It becomes possible to transfer the image to In addition, rather than improving the handling of the pressure-sensitive adhesive layer made of the fibrous pressure-sensitive adhesive 1 with a single-layer structure, as shown in the T%5 diagram, it is preferable to A pressure-sensitive adhesive layer 5 made of a fibrous pressure-sensitive adhesive material 3 having a multilayer structure may be provided above and below the pressure-sensitive adhesive layer 6 to form a sandwich structure. Of course, in the case where the pressure-sensitive adhesive layer 6 is provided directly on the adherend, it is sufficient to provide the pressure-sensitive adhesive layer 5 only on one side where the pressure-sensitive adhesive 7i1!16 remains.
繊維状感圧接着体１，３の展開方法としては、ノズルよ
り押し出された１条又は２条以上の繊維状感圧接着体を
そのまま展開する方法が量産性の点で有利である。その
際、受は台ないし被着体、あるいはノズルを揺動させて
もよい。この揺動処理により、繊維状感圧接着体のラン
ダム配置からなる多孔構造を容易に形成することができ
る。空隙率の大きい多孔構造は例えば、細い繊維状感圧
接着体を繰り返し展開処理して、その展開物を順次ｆｉ
！層させる方法などにより形成することができる。As a method for spreading the fibrous pressure-sensitive adhesives 1 and 3, a method in which one or more fibrous pressure-sensitive adhesives extruded from a nozzle is spread as is is advantageous in terms of mass production. At this time, the receiver may swing the stand, the adherend, or the nozzle. By this rocking treatment, a porous structure consisting of a random arrangement of fibrous pressure-sensitive adhesives can be easily formed. For example, a porous structure with a large porosity can be created by repeatedly developing a thin fibrous pressure-sensitive adhesive, and then sequentially applying the filament.
! It can be formed by a layering method or the like.
第６図のように、繊維状感圧接着体１（３）を不織布状
に配置した多孔構造からなる感圧接着層７とした場合に
は、表面での繊維状感圧接着体からなる接着寄与点と、
層構造内部における空隙も含めた空隙点が平均的に分布
し゛て、偏りの少ない接着処理性、及び偏りの少ない空
隙路を付与することができる。なお、繊維状感圧接着体
の粘度が低（て流動変形するなど、不織布状の形態にま
とめに（い場合には、ネット状保持体の上に展開する方
法など、形ａ＃ａ持のための補助具を使用してもよい。As shown in FIG. 6, when the pressure-sensitive adhesive layer 7 is made of a porous structure in which the fibrous pressure-sensitive adhesive 1 (3) is arranged like a non-woven fabric, the adhesive made of the fibrous pressure-sensitive adhesive on the surface Contribution points and
The void points including voids within the layered structure are evenly distributed, and it is possible to provide adhesive processing with less unevenness and void paths with less unevenness. In addition, in cases where the fibrous pressure-sensitive adhesive has a low viscosity (such as flowing and deforming), it is difficult to form it into a non-woven fabric (such as by spreading it on a net-like holder). Additional aids may be used.
不織布状の多孔構造の形成に用いる繊維状感圧接着体は
、その径が０．５〜５００ｕｍのものが適当である。ま
た、感圧接着層の空隙率は５〜９５％、就中ＩＯへ８０
％が適当であり、厚さ（見掛け）は５〜８００ｕｍが適
当である。坪量は５〜１０００ｇ／ ｊが適当である。The fibrous pressure-sensitive adhesive used for forming the non-woven porous structure has a diameter of 0.5 to 500 um. In addition, the porosity of the pressure-sensitive adhesive layer is 5 to 95%, especially 80% to IO.
% and the appropriate thickness (apparent) is 5 to 800 um. The appropriate basis weight is 5 to 1000 g/j.
その空隙率や厚さは感圧接着層をプレス処理して調節す
ることも可能である。被着体に接着する場合に、感圧接
ｒＩＮＩの不織布状多孔構造を可及的に温存する点より
は、繊維状感圧接着体の展開層を厚めに、かつ粗めの空
隙状態に形成し、その展開層をプレス処理して押し固め
、所定の空隙率等に予め調節しておくことが好ましい。The porosity and thickness can also be adjusted by pressing the pressure-sensitive adhesive layer. When adhering to an adherend, in order to preserve the nonwoven fabric-like porous structure of pressure-sensitive adhesive rINI as much as possible, it is preferable to form the spread layer of the fibrous pressure-sensitive adhesive to be thicker and to have coarser voids. It is preferable that the spread layer is pressed and compacted to adjust the porosity to a predetermined value in advance.
本発明における単層構造、複層構造の繊維状感圧接着体
は、被着体の部分的接着処理などに好ましく用いられる
。殊に、複層構造の繊維状感圧接着体は、高精度の位置
合せが要求される用途などにも好ましく用いられる。The fibrous pressure-sensitive adhesive having a single-layer structure or a multi-layer structure in the present invention is preferably used for partial adhesion treatment of adherends. In particular, a fibrous pressure-sensitive adhesive having a multilayer structure is preferably used in applications that require highly accurate positioning.
また、多孔構造の感圧接着層は、通気性や通液性等の物
流性が望まれる用途などに好ましく用いられる。殊に、
不織布状の多孔構造を有するものは、保温性も良好で断
熱材の接着処理などにも好ましく用いられる。Further, a pressure-sensitive adhesive layer having a porous structure is preferably used in applications where physical properties such as air permeability and liquid permeability are desired. Especially,
Those having a non-woven porous structure have good heat retention properties and are preferably used for adhesion of heat insulating materials.
なお、実用に際しては、感圧接着層そのものからなる粘
着剤シートや、支持基材に接着してなる粘着テープなど
で代表される、これまでと同様の形態をとりつる。また
、複ｍ構造の繊維状感圧接着体の場合には、そのままの
形態で実用途に供することもできる。In addition, in practical use, the same forms as before are used, such as an adhesive sheet made of the pressure-sensitive adhesive layer itself, and an adhesive tape adhered to a supporting base material. In addition, in the case of a fibrous pressure-sensitive adhesive having a multi-m structure, it can be used for practical purposes as is.
実施例１
アクリル酸ブチル・アクリル酸共重合体からなり、ポリ
イソシアネート系架橋剤を含有するアクリル系感圧接着
剤の加熱溶融液を押出方式で、直径５０ｕｍの吐出し孔
を有するノズルを介し押出してポリエステルフィルム上
にランダムに展開し、外径が約５０ｕｍの単層構造の繊
維状感圧接着体からなる坪ｆｆ１３４ ｇ ／ ａの感
圧接着層を有する粘着テープを得た。Example 1 A heated melt of an acrylic pressure-sensitive adhesive made of butyl acrylate/acrylic acid copolymer and containing a polyisocyanate crosslinking agent was extruded through a nozzle having a discharge hole with a diameter of 50 um using an extrusion method. The adhesive tape was randomly spread on a polyester film to obtain an adhesive tape having a pressure-sensitive adhesive layer having a weight of 134 g/a and consisting of a single-layer fibrous pressure-sensitive adhesive having an outer diameter of about 50 um.
この粘着テープをそのままステンレス板（５Ｏ３３０４
［］八仕上げ）に対し５００ ｇのローラを一往復させ
る方式で貼着したところ、その接着力（１８０ビール、
引張速度３００ｍｏ＋／分、）は４００ ｇ ／ ２０
＋ａｍであった。また粘着テープにおける感圧接着層
を５ ｋｇ ／ｃＪの圧力でプレスしたのちの接着力は
４４０ ｇ／２０閣であった。 、
実施例２
二重吐出し孔を有するノズルを用いて実施例１に準じ、
平均直径が５０ｕｌｌの複層構造の繊維状感圧接着体を
ランダムに展開して粘着テープを得た。Apply this adhesive tape to a stainless steel plate (5O3304).
[ ] 8 finishes) was pasted with a 500 g roller going back and forth once, and the adhesive strength (180 beer,
Tensile speed 300mo+/min,) is 400g/20
It was +am. The adhesive strength of the pressure-sensitive adhesive layer of the adhesive tape after being pressed at a pressure of 5 kg/cJ was 440 g/20 kg. , Example 2 According to Example 1 using a nozzle with double discharge holes,
A fibrous pressure-sensitive adhesive having a multi-layer structure having an average diameter of 50 ul was randomly spread to obtain an adhesive tape.
複ｙｉ！１構造の繊維状感圧接着体は、実施例１と同じ
アクリル系感圧接着剤からなる芯体の外周に、メタクリ
ル酸メヂル・アクリル酸エチル共重合体からなる厚さ５
−の被覆層を有するものである。粘着テープにおける感
圧接着層の坪量は、３２ｇ／ａｔであった。Compound! The fibrous pressure-sensitive adhesive having one structure has a core made of the same acrylic pressure-sensitive adhesive as in Example 1, and a 5-thick layer made of methyl methacrylate/ethyl acrylate copolymer on the outer periphery of the core.
- has a coating layer of -. The basis weight of the pressure-sensitive adhesive layer in the adhesive tape was 32 g/at.
次に、実施例１に準じ接着力を調べたところ、そのまま
の状態ではｌＧｇ／２０ｕｕｍと低く、良好な低タック
性を示した。一方、５ｋｇ／ｃｉの圧力でプレスして繊
維状感圧接着体における被覆層を破壊したのちの粘着テ
ープは、その接着力が２５５ｇ／２０鴫であり、満足で
きる接着力の上昇を示した。Next, when the adhesive strength was examined according to Example 1, it was as low as 1Gg/20uum in the as-is condition, indicating good low tackiness. On the other hand, the adhesive strength of the adhesive tape after being pressed at a pressure of 5 kg/ci to destroy the coating layer of the fibrous pressure-sensitive adhesive was 255 g/20 mm, indicating a satisfactory increase in adhesive strength.
実施例３
ノズルを左右に１０ｍ揺動させながら実施例１に準じ、
ＳｚＳ系感圧感圧接着剤熱溶融液を押出し、外径が約５
０μｍのｍ雄状感圧ｒ＆若体＜ ｑｔ Ｗ１構造）から
なる見掛は厚さが約８ｈｍで、坪量が３２ ｇ ／ ＋
Ｊの不織布状の展開層を形成し、この展開層を５ ｋｇ
／ｃｒ＆の圧力でプレスして見掛は厚さが７０ｕｍの
不織布状多孔構造の感圧接着層を有する粘着テープを得
た。Example 3 According to Example 1, while swinging the nozzle 10 m left and right,
Extrude hot melt of SzS pressure-sensitive pressure-sensitive adhesive, and the outer diameter is approximately 5.
The apparent structure, consisting of a 0 μm male pressure-sensitive r
A nonwoven fabric-like spread layer of J is formed, and this spread layer weighs 5 kg.
An adhesive tape having a pressure-sensitive adhesive layer with a non-woven porous structure and an apparent thickness of 70 um was obtained by pressing at a pressure of /cr&.
その感圧接着層の空隙率は６５％であった。The porosity of the pressure sensitive adhesive layer was 65%.
実施例４
実施例３に準じ、アクリル系感圧接着剤の加熱溶融液を
押出し、外径が約５０ｐｍの繊維状感圧接着体からなる
見掛は厚さが約７０μｍで、秤量が２０ｇ／ｉの不織布
状の展開層を形成し、この展開層を５ｋｇ ／ ｃ＋Ｊ
の圧力でプレスして見掛は厚さが４０ｕ＋＋＋の不織布
状多孔構造の感圧接着層を有する粘着テープを得た。Example 4 According to Example 3, a heated melt of an acrylic pressure-sensitive adhesive was extruded to obtain a fibrous pressure-sensitive adhesive with an outer diameter of about 50 pm, a thickness of about 70 μm, and a basis weight of 20 g/ Form a non-woven fabric-like spread layer of 5kg/c+J
An adhesive tape having an apparent thickness of 40 u+++ and having a pressure-sensitive adhesive layer with a non-woven porous structure was obtained.
その感圧接着層の空隙率は３０％であった。The porosity of the pressure sensitive adhesive layer was 30%.
発明の効果
本発明の繊維状感圧接着体によれば、感圧接着剤を無駄
消費なく、かつ任意なパターンに展開することかでき、
所定の部分接着に良好にマツチした感圧接；？７層を得
ることができる。また、複層構造の繊維状感圧接着体の
場合には、そのうえに初期の低タック性ないし非粘着性
に基づいて位置ずらしが容易であり、被着体の高精度な
位置合せを行ったのち、被覆層を破壊して充分な接着力
を発現させることができる。Effects of the Invention According to the fibrous pressure-sensitive adhesive of the present invention, the pressure-sensitive adhesive can be spread into any pattern without wasting it.
Pressure-sensitive welding that satisfactorily matches predetermined partial adhesion;? Seven layers can be obtained. In addition, in the case of a fibrous pressure-sensitive adhesive with a multilayer structure, it is easy to shift the position based on the initial low tackiness or non-adhesion, and after highly accurate positioning of the adherend. , the coating layer can be destroyed and sufficient adhesive strength can be developed.
また、多孔構造の感圧接着層を形成することができ、感
圧接着層に通気性等の物流性をもたせることがでる。特
に、不織布状の多孔構造からなる感圧接着層は、接着寄
与点となる表面における繊維状感圧接着体部分と、層内
部も含めた空隙の均等分布性にも優れ、空隙率が太き（
て、接着力の偏りが少ない利点を有している。Further, it is possible to form a pressure-sensitive adhesive layer with a porous structure, and the pressure-sensitive adhesive layer can have physical properties such as air permeability. In particular, the pressure-sensitive adhesive layer consisting of a non-woven porous structure has excellent uniform distribution of voids including the fibrous pressure-sensitive adhesive part on the surface that contributes to adhesion and the inside of the layer, and has a large porosity. (
Therefore, it has the advantage of less uneven adhesive strength.
第１図は単層構造の繊維状感圧接着体例の斜視図、第２
図は複層構造の繊維状感圧接着体例の部分断面斜視図、
第３図、第４図は感圧接′ｉｉ層における多孔構造例の
平面図、第５図は他の多孔構造例の側面図、第６図は感
圧接着層における不織布状の多孔構造例の側面図である
。
１：単層構造の繊維状感圧接着体
２：被覆層
３：複層構造の繊維状感圧接着体
４：被着体
５：複層構造の繊維状感圧接着体からなる感圧接着層
６：単層構造の繊維状感圧接着体からなる感圧接着層
７：不織布状の多孔構造の感圧接着層
特許出願人 日東電気工業株式会社
代 理 人 藤 本 勉第３
図 第ヰ図Figure 1 is a perspective view of an example of a fibrous pressure-sensitive adhesive with a single layer structure;
The figure is a partial cross-sectional perspective view of an example of a fibrous pressure-sensitive adhesive with a multilayer structure.
3 and 4 are plan views of an example of a porous structure in the pressure-sensitive adhesive layer, FIG. 5 is a side view of another example of a porous structure, and FIG. FIG. 1: Single layer structure fibrous pressure sensitive adhesive 2: Covering layer 3: Multilayer structure fibrous pressure sensitive adhesive 4: Adherent 5: Pressure sensitive adhesive consisting of multilayer structure fibrous pressure sensitive adhesive Layer 6: Pressure-sensitive adhesive layer made of a single-layer fibrous pressure-sensitive adhesive layer 7: Pressure-sensitive adhesive layer with a non-woven porous structure Patent applicant: Nitto Electric Industries Co., Ltd. Agent: Tsutomu Fujimoto 3rd
Fig.
Claims (1)
、その繊維状成形体が単層構造であることを特徴とする
繊維状感圧接着体。 ２、請求項１に記載の繊維状感圧接着体の外側に、押圧
処理ないし伸長処理により破壊できる低タック性ないし
非粘着性の被覆層を有することを特徴とする複層構造の
繊維状感圧接着体。 ３、請求項１又は２に記載の繊維状感圧接着体を多孔構
造に展開してなることを特徴とする感圧接着層。 ４、請求項３に記載の多孔構造が、繊維状感圧接着体を
不織布状に配置した層構造を有して、層構造内にも空隙
を有することを特徴とする感圧接着層。[Scope of Claims] 1. A fibrous pressure-sensitive adhesive body comprising a molded body formed by molding a pressure-sensitive adhesive into a fibrous shape, and characterized in that the fibrous molded body has a single-layer structure. 2. A fibrous texture with a multilayer structure, characterized in that the fibrous pressure-sensitive adhesive according to claim 1 has a low-tack or non-adhesive coating layer on the outside that can be destroyed by pressing or stretching. Pressure bonded body. 3. A pressure-sensitive adhesive layer comprising the fibrous pressure-sensitive adhesive according to claim 1 or 2 expanded into a porous structure. 4. A pressure-sensitive adhesive layer according to claim 3, wherein the porous structure has a layered structure in which fibrous pressure-sensitive adhesives are arranged in a nonwoven fabric, and the layered structure also has voids.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63138996A JP2829413B2 (en) | 1988-06-06 | 1988-06-06 | Fibrous pressure-sensitive adhesive and pressure-sensitive adhesive layer thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63138996A JP2829413B2 (en) | 1988-06-06 | 1988-06-06 | Fibrous pressure-sensitive adhesive and pressure-sensitive adhesive layer thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01308471A true JPH01308471A (en) | 1989-12-13 |
| JP2829413B2 JP2829413B2 (en) | 1998-11-25 |
Family
ID=15235046
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63138996A Expired - Lifetime JP2829413B2 (en) | 1988-06-06 | 1988-06-06 | Fibrous pressure-sensitive adhesive and pressure-sensitive adhesive layer thereof |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2829413B2 (en) |
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| WO2019065877A1 (en) * | 2017-09-29 | 2019-04-04 | 日東電工株式会社 | Adhesive article |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS51143051A (en) * | 1975-06-03 | 1976-12-09 | Takumi Yoshikawa | Tacky packing materials and method of manufacturing the same |
-
1988
- 1988-06-06 JP JP63138996A patent/JP2829413B2/en not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS51143051A (en) * | 1975-06-03 | 1976-12-09 | Takumi Yoshikawa | Tacky packing materials and method of manufacturing the same |
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|---|---|---|---|---|
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| JP2019065279A (en) * | 2017-09-29 | 2019-04-25 | 日東電工株式会社 | Adhesive article |
| EP3689991A4 (en) * | 2017-09-29 | 2021-06-23 | Nitto Denko Corporation | Adhesive article |
| JP2019065280A (en) * | 2017-09-29 | 2019-04-25 | 日東電工株式会社 | Adhesive article |
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| JP2020007517A (en) * | 2017-09-29 | 2020-01-16 | 日東電工株式会社 | Adhesive article |
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| CN114466910A (en) * | 2019-09-27 | 2022-05-10 | 日东电工株式会社 | Method for attaching thread-like adhesive body and thread-like adhesive body with temporary support |
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| JP2829413B2 (en) | 1998-11-25 |
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