JP5002253B2 - Insect trapping adhesive sheet and ultraviolet light attracting trap - Google Patents
Insect trapping adhesive sheet and ultraviolet light attracting trap Download PDFInfo
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- JP5002253B2 JP5002253B2 JP2006333367A JP2006333367A JP5002253B2 JP 5002253 B2 JP5002253 B2 JP 5002253B2 JP 2006333367 A JP2006333367 A JP 2006333367A JP 2006333367 A JP2006333367 A JP 2006333367A JP 5002253 B2 JP5002253 B2 JP 5002253B2
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- 241000238631 Hexapoda Species 0.000 title claims description 63
- 239000000853 adhesive Substances 0.000 title claims description 32
- 230000001070 adhesive effect Effects 0.000 title claims description 32
- 239000004820 Pressure-sensitive adhesive Substances 0.000 claims description 78
- 239000010410 layer Substances 0.000 claims description 39
- 229920005989 resin Polymers 0.000 claims description 18
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- 229920000098 polyolefin Polymers 0.000 claims description 12
- 238000002834 transmittance Methods 0.000 claims description 12
- 241000607479 Yersinia pestis Species 0.000 claims description 11
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- RSWGJHLUYNHPMX-UHFFFAOYSA-N Abietic-Saeure Natural products C12CCC(C(C)C)=CC2=CCC2C1(C)CCCC2(C)C(O)=O RSWGJHLUYNHPMX-UHFFFAOYSA-N 0.000 claims description 3
- KHPCPRHQVVSZAH-HUOMCSJISA-N Rosin Natural products O(C/C=C/c1ccccc1)[C@H]1[C@H](O)[C@@H](O)[C@@H](O)[C@@H](CO)O1 KHPCPRHQVVSZAH-HUOMCSJISA-N 0.000 claims description 3
- 230000029264 phototaxis Effects 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- KHPCPRHQVVSZAH-UHFFFAOYSA-N trans-cinnamyl beta-D-glucopyranoside Natural products OC1C(O)C(O)C(CO)OC1OCC=CC1=CC=CC=C1 KHPCPRHQVVSZAH-UHFFFAOYSA-N 0.000 claims description 3
- 230000000749 insecticidal effect Effects 0.000 claims 1
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- 230000001771 impaired effect Effects 0.000 description 2
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- 239000004611 light stabiliser Substances 0.000 description 2
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- 229920013716 polyethylene resin Polymers 0.000 description 2
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- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 239000004902 Softening Agent Substances 0.000 description 1
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 description 1
- 239000006096 absorbing agent Substances 0.000 description 1
- 230000002421 anti-septic effect Effects 0.000 description 1
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- 239000002216 antistatic agent Substances 0.000 description 1
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- 229920001577 copolymer Polymers 0.000 description 1
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- AWJWCTOOIBYHON-UHFFFAOYSA-N furo[3,4-b]pyrazine-5,7-dione Chemical compound C1=CN=C2C(=O)OC(=O)C2=N1 AWJWCTOOIBYHON-UHFFFAOYSA-N 0.000 description 1
- 238000013007 heat curing Methods 0.000 description 1
- 239000012943 hotmelt Substances 0.000 description 1
- 239000003112 inhibitor Substances 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 239000002655 kraft paper Substances 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000003016 pheromone Substances 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 239000004014 plasticizer Substances 0.000 description 1
- 229920003207 poly(ethylene-2,6-naphthalate) Polymers 0.000 description 1
- 229920001707 polybutylene terephthalate Polymers 0.000 description 1
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- MSFGZHUJTJBYFA-UHFFFAOYSA-M sodium dichloroisocyanurate Chemical compound [Na+].ClN1C(=O)[N-]C(=O)N(Cl)C1=O MSFGZHUJTJBYFA-UHFFFAOYSA-M 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
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Landscapes
- Catching Or Destruction (AREA)
- Laminated Bodies (AREA)
- Adhesive Tapes (AREA)
- Adhesives Or Adhesive Processes (AREA)
Description
本発明は、捕虫用粘着シートに関する。さらに詳しくは、本発明は、基材シートの一方の面に捕虫用の粘着剤層を有し、飛翔性害虫を効率よく捕殺することができると共に、加工性や保存性が良好な捕虫用粘着シート、特に紫外線誘引型の捕虫器に好適に使用し得る紫外線透過性及び耐紫外線劣化性に優れる捕虫用粘着シートに関するものである。 The present invention relates to an insect trapping adhesive sheet. More specifically, the present invention has an insecticide-use pressure-sensitive adhesive layer on one surface of the substrate sheet, can efficiently kill flying insects, and has good processability and storage stability. The present invention relates to a pressure-sensitive adhesive sheet for trapping that is excellent in ultraviolet-ray permeability and UV-resistant deterioration, which can be suitably used for a sheet, in particular, an ultraviolet-induced insect trap.
従来、ハエなどの飛翔性害虫を駆除するためにはハエトリ紙が用いられていた。このハエトリ紙は表面に粘着剤を塗設して形成したもので、ハエが発生しやすい場所に設置し、表面の粘着性によりハエを捕獲するものであったが、捕獲能力や捕獲できる害虫の種類が少ないといった問題から、その使用頻度が年々低下しつつあり、近年、殺虫剤を散布する駆除方法が主流となってきた。しかし、このように殺虫剤を散布する方法では、飛翔性害虫に対する効果は充分であるというものの、反面、散布された土壌や植物に対して、好ましくない生物活性や化学的特性を与えてしまい、自然環境や人体に悪影響を及ぼしてしまうなどの問題がある。そこで、最近、自然環境や人体に悪影響を与えることなく、害虫を捕獲できるハエトリ紙などの粘着性捕獲体が見直されるようになってきており、例えば分子量が１万〜５０万、且つ不飽和度が５モル％以下の高分子エラストマーと、分子量１００〜１万の軟化剤とからなる粘着剤組成物であって、荷重１０ｇ／ｃｍ2の時のズレ速度が１ｍｍ／ｍｉｎ以下、且つ荷重５０ｇ／ｃｍ2の時のズレ速度が１ｍｍ／ｍｉｎ以上であることを特徴とする飛翔害虫捕殺用粘着剤組成物が開示されている（例えば、特許文献１参照）。
一方、様々な産業における工場において、製品中への害虫類の混入は重大な問題であるため、各種の対策が行われている。その中で、虫の走光性という習性を利用した紫外線誘引型の捕虫器が知られている（例えば、特許文献２参照）。
この紫外線誘引型の捕虫器は、高い捕虫性や電撃殺虫器でみられるような死骸の飛散がない、メンテナンスが容易であるなどの観点から多く使用されてきている。この捕虫器に使用される粘着シートは、紫外線による誘虫性を考慮して、紫外線透過性及び耐紫外線劣化性が要求性能として挙げられる。また比較的体重が軽い飛翔性の害虫が対象となるため、凝集力が非常に低い粘着剤を用いるのが一般的である。しかし、凝集力が非常に低いため、加工性、保存性という点で劣り、ロール端面からの粘着剤のしみ出しや剥離シートから剥がす際の粘着剤層の凝集破壊が問題であった。
なお、前記特許文献１における技術は、紫外線誘引型の捕虫器に適用し得る技術ではない。
On the other hand, in plants in various industries, various measures are taken because the mixture of pests into products is a serious problem. Among them, an ultraviolet attracting type insect trap utilizing the habit of insect phototaxis is known (for example, see Patent Document 2).
This ultraviolet attracting type insect trap has been widely used from the viewpoints of high trapping property, no scattering of dead bodies as seen in electric shock killers, and easy maintenance. The pressure-sensitive adhesive sheet used in this insect trapping device includes ultraviolet transmittance and resistance to ultraviolet deterioration as required performance in consideration of insect attracting property by ultraviolet rays. In addition, since flying insect pests that are relatively light in weight are targeted, it is common to use an adhesive that has a very low cohesive force. However, since the cohesive force is very low, it is inferior in terms of workability and storage stability, and the problem of cohesive failure of the pressure-sensitive adhesive layer when exfoliating the pressure-sensitive adhesive from the roll end surface or peeling from the release sheet has been a problem.
In addition, the technique in the said patent document 1 is not a technique which can be applied to an ultraviolet attracting type insect trap.
本発明は、このような事情のもとで、基材シートの一方の面に捕虫用の粘着剤層を有し、飛翔性害虫を効率よく捕殺することができると共に、加工性や保存性が良好な捕虫用粘着シート、特に紫外線誘引型の捕虫器に好適に使用し得る紫外線透過性及び耐紫外線劣化性に優れる捕虫用粘着シートを提供することを目的としてなされたものである。 Under such circumstances, the present invention has a pesticide-use pressure-sensitive adhesive layer on one side of the base sheet, and can efficiently kill flying pests, and has processability and storage stability. The present invention has been made for the purpose of providing an excellent insect trapping adhesive sheet, particularly an insect trapping adhesive sheet that can be suitably used for an ultraviolet attracting type insect trap and has excellent ultraviolet transparency and UV resistance.
本発明者らは、前記の好ましい性質を有する捕虫用粘着シートを開発すべく鋭意研究を重ねた結果、基材シートの一方の面に、粘着剤層として、ポリオレフィン系高分子エラストマーと、軟化点がある値以上の水素添加処理された粘着付与剤を含むものを設け、かつ当該粘着シートの粘着剤層面同士を重ね合わせた場合の粘着剤層のせん断力が、ある範囲にある粘着シートが、その目的に適合し得ることを見出し、この知見に基づいて本発明を完成するに至った。
すなわち、本発明は、
［１］基材シートの一方の面に、ポリオレフィン系高分子エラストマーと軟化点が８５℃以上の水素添加ロジン系粘着付与剤、水素添加テルペン系粘着付与剤又は水素添加石油樹脂系粘着付与剤を含む粘着剤層を有する粘着シートであって、粘着剤層における前記粘着付与剤の含有量が、ポリオレフィン系高分子エラストマー１００質量部に対して、２０質量部以上８０質量部未満であり、下記せん断力試験によって測定した該粘着シートの粘着剤層面同士を重ね合わせた場合の粘着剤層のせん断力が、１２〜８０Ｎ／３５ｍｍ×３５ｍｍであり、該粘着シートは、波長３４０〜４４０ｎｍにおける紫外線透過率の最小値が７０％以上であって、背面（基材シート）側から、３４０〜４４０ｎｍの波長領域に発光ピークを有する紫外光を透過させ、粘着剤層面に走光性害虫を誘引・捕獲することを特徴とする捕虫用粘着シート、
せん断力試験
２３℃、５０％ＲＨの環境下で、幅３５ｍｍの粘着シートの基材シート側を両面テープを用いてステンレス鋼板に固定した試料を２つ用意し、その後、剥離シートを３５ｍｍ剥がしたのち、露出した粘着剤層面同士を重ね合わせ、１９.６Ｎローラーを用いて５往復して貼付し、貼付３０分後、引張り試験機［オリエンテック社製、機種名「ＵＴＭ−４−１００」］を用いて、ＪＩＳ Ｚ ０２３７に準拠し、速度３００ｍｍ／ｍｉｎの条件でせん断力を測定する。
［２］粘着付与剤の軟化点が１１０℃以上である上記[１]項に記載の捕虫用粘着シート、
［３］粘着剤層の厚さが、１０〜２００μｍである上記[１]又は[２]項に記載の捕虫用粘着シート、及び
［４］上記[１]〜[３]項のいずれかに記載の捕虫用粘着シートを用いた紫外線誘引型捕虫器、
を提供するものである。
As a result of intensive research to develop an insect trapping pressure-sensitive adhesive sheet having the above-mentioned preferred properties, the present inventors have, as one pressure-sensitive adhesive layer on one surface of a base sheet, a polyolefin polymer elastomer and a softening point. A pressure-sensitive adhesive sheet in which a shear force of the pressure-sensitive adhesive layer is provided in a certain range when the pressure-sensitive adhesive layer surfaces of the pressure-sensitive adhesive sheet are overlapped with each other is provided with a hydrogenation-treated tackifier having a certain value or more. Based on this finding, the present invention has been completed.
That is, the present invention
[1] A polyolefin polymer elastomer and a hydrogenated rosin tackifier having a softening point of 85 ° C. or higher, a hydrogenated terpene tackifier, or a hydrogenated petroleum resin tackifier on one surface of a base sheet. The pressure-sensitive adhesive sheet includes a pressure-sensitive adhesive layer, and the content of the tackifier in the pressure-sensitive adhesive layer is 20 parts by mass or more and less than 80 parts by mass with respect to 100 parts by mass of the polyolefin-based polymer elastomer. shear strength of the adhesive layer when superimposed pressure-sensitive adhesive layer surfaces of the PSA sheet measured by the force test, Ri 12~80N / 35mm × 35mm der, the PSA sheet is an ultraviolet transmittance at a wavelength of 340~440nm The minimum value of the rate is 70% or more, and UV light having a light emission peak in the wavelength region of 340 to 440 nm is transmitted from the back surface (base material sheet) side. Allowed, insect trapping adhesive sheet is characterized in that to attract, capture phototaxis pests adhesive layer surface,
Shear force test
Prepare two samples in which the base sheet side of the adhesive sheet with a width of 35 mm was fixed to a stainless steel plate using a double-sided tape in an environment of 23 ° C. and 50% RH. The pressure-sensitive adhesive layer surfaces were overlapped and pasted 5 times using a 19.6N roller, and after 30 minutes of pasting, using a tensile tester [Orientec, model name “UTM-4-100”]. In accordance with JIS Z 0237, the shear force is measured under the condition of a speed of 300 mm / min.
[2] The insect trapping adhesive sheet according to the above [1], wherein the tackifier has a softening point of 110 ° C. or higher .
[ 3 ] The insect trapping pressure-sensitive adhesive sheet according to item [1] or [2] , wherein the pressure-sensitive adhesive layer has a thickness of 10 to 200 μm, and
[4] An ultraviolet attracting type insect trap using the insect trapping adhesive sheet according to any one of [1] to [3] above,
Is to provide.
本発明によれば、基材シートの一方の面に捕虫用の粘着剤層を有し、飛翔性害虫を効率よく捕殺することができると共に、加工性や保存性が良好な捕虫用粘着シート、特に紫外線誘引型の捕虫器に好適に使用し得る紫外線透過性及び耐紫外線劣化性に優れる捕虫用粘着シートを提供することができる。 According to the present invention, the pressure-sensitive adhesive sheet for insect trapping has an adhesive layer for trapping insects on one side of the base sheet, can efficiently kill flying insects, and has good processability and storage stability. In particular, it is possible to provide an insect trapping pressure-sensitive adhesive sheet that is suitable for use in an ultraviolet attracting type insect trap and is excellent in UV transmittance and UV resistance.
本発明の捕虫用粘着シートは、基材シートの一方の面に、ポリオレフィン系高分子エラストマーと軟化点が８５℃以上の水素添加処理された粘着付与剤を含む粘着剤層を有する粘着シートである。
本発明の捕虫用粘着シートにおける基材シートの種類に特に制限はないが、紫外線誘引型の捕虫器への適用を考慮して、３４０〜４４０ｎｍの波長領域に発光ピークをもつ紫外光に対する透過性の良好なものが好ましい。例えばポリエチレン樹脂、ポリプロピレン樹脂等のポリオレフィン樹脂、ポリブチレンテレフタレート樹脂、ポリエチレンテレフタレート樹脂などのポリエステル樹脂、ポリスチレン樹脂、塩化ビニル樹脂などのプラスチックのフィルム、シート及びこれらの樹脂の混合物又は積層物からなるプラスチックフィルム、シート等が挙げられる。これらの基材シートは、未延伸でもよいし、縦又は横の一軸方向、あるいは二軸方向に延伸処理されたものであってもよい。さらに、上述した波長領域以外の紫外線吸収剤、光安定剤、酸化防止剤、帯電防止剤、スリップ剤、アンチブロッキング剤などが含有されていてもよい。
The pressure-sensitive adhesive sheet for trapping insects according to the present invention is a pressure-sensitive adhesive sheet having a pressure-sensitive adhesive layer containing a polyolefin polymer elastomer and a hydrogenation-treated tackifier having a softening point of 85 ° C. or higher on one surface of a base sheet. .
Although there is no restriction | limiting in particular in the kind of base material sheet in the adhesive sheet for insect traps of this invention, Considering the application to an ultraviolet attracting type insect trap, the transmittance | permeability with respect to the ultraviolet light which has an emission peak in the wavelength range of 340-440 nm Are preferable. For example, polyolefin films such as polyethylene resins and polypropylene resins, polybutylene terephthalate resins, polyester resins such as polyethylene terephthalate resins, plastic films such as polystyrene resins and vinyl chloride resins, sheets, and plastic films made of a mixture or laminate of these resins , Sheets and the like. These substrate sheets may be unstretched, or may be stretched in the longitudinal or lateral uniaxial direction or the biaxial direction. Furthermore, ultraviolet absorbers, light stabilizers, antioxidants, antistatic agents, slip agents, antiblocking agents and the like other than those described above may be contained.
また、当該基材シートは、性能を損なわない範囲内で、その上に設けられる粘着剤層との密着性を向上させるために、所望により酸化法や凹凸化法などの表面処理を施すことができる。上記酸化法としては、特には限定されないが例えばコロナ放電処理法、クロム酸酸化（湿式）、火炎処理、熱風処理、オゾン・プラズマ照射処理などが挙げられ、また、凹凸化法としては、特には限定されないが、例えばサンドブラスト法、溶剤処理法等が挙げられる。これらの表面処理法は基材シートの種類に応じて適宜選定されるが、一般にはコロナ放電処理法が効果及び操作性などの面から、好ましく用いられる。また、プライマー処理を施すこともできる。
当該基材シートの厚さに特に制限はないが、前記波長領域の紫外線透過性及び適度の剛性などの観点から、通常１０〜２５０μｍ程度、好ましくは２０〜１５０μｍである。
In addition, the base sheet may be subjected to a surface treatment such as an oxidation method or a concavo-convex method, if desired, in order to improve the adhesion with the pressure-sensitive adhesive layer provided on the base sheet as long as the performance is not impaired. it can. Examples of the oxidation method include, but are not limited to, corona discharge treatment method, chromic acid oxidation (wet), flame treatment, hot air treatment, ozone plasma irradiation treatment, and the like. Although not limited, for example, a sand blasting method, a solvent processing method and the like can be mentioned. These surface treatment methods are appropriately selected depending on the type of the base sheet, but generally, a corona discharge treatment method is preferably used from the viewpoints of effects and operability. Moreover, primer treatment can also be performed.
Although there is no restriction | limiting in particular in the thickness of the said base material sheet, From viewpoints, such as the ultraviolet-ray transmittance of the said wavelength range, and moderate rigidity, it is about 10-250 micrometers normally, Preferably it is 20-150 micrometers.
本発明の捕虫用粘着シートにおいて、前記基材シートの一方の面に設けられる粘着剤層は、必須成分として、ポリオレフィン系高分子エラストマーと粘着付与剤を含有する。
前記ポリオレフィン系高分子エラストマーとしては、例えばエチレン−プロピレン共重合体、ポリブテン、ポリイソブチレンなどが挙げられ、これらは１種を単独で用いてもよいし、２種以上を組み合わせて用いてもよいが、飛翔性害虫に対して優れた捕獲能力を示す観点から、特にポリブテン及びポリイソブチレンが好適である。
一方、粘着付与剤としては、軟化点が８５℃以上の水素添加処理されたものが用いられる。軟化点が８５℃未満の粘着付与剤では、加工性の良好なものが得られにくく、剥離シートから粘着シートを剥がす際に、粘着剤層の凝集破壊を起こすといった不具合が生じやすい。当該粘着付与剤の軟化点は、好ましくは１００℃以上、より好ましくは１１０℃以上である。また、その上限については特に制限はないが、通常１５０℃程度である。
また、当該粘着付与剤は、水素添加処理されていることが必要である。水素添加処理されていない粘着付与剤を用いると、紫外線誘引型の捕虫器に適用した場合、紫外光によって粘着付与剤が劣化し、結果として粘着剤層が硬化して、飛翔性害虫の捕獲性が低下する。
In the insect trapping pressure-sensitive adhesive sheet of the present invention, the pressure-sensitive adhesive layer provided on one surface of the substrate sheet contains a polyolefin-based polymer elastomer and a tackifier as essential components.
Examples of the polyolefin polymer elastomer include ethylene-propylene copolymer, polybutene, polyisobutylene, and the like. These may be used alone or in combination of two or more. Polybutene and polyisobutylene are particularly preferable from the viewpoint of exhibiting excellent capturing ability against flying insect pests.
On the other hand, as the tackifier, those subjected to hydrogenation treatment with a softening point of 85 ° C. or higher are used. With a tackifier having a softening point of less than 85 ° C., it is difficult to obtain a product with good processability, and when the pressure-sensitive adhesive sheet is peeled off from the release sheet, a problem such as causing cohesive failure of the pressure-sensitive adhesive layer is likely to occur. The softening point of the tackifier is preferably 100 ° C or higher, more preferably 110 ° C or higher. The upper limit is not particularly limited, but is usually about 150 ° C.
Further, the tackifier needs to be hydrogenated. When a tackifier that has not been subjected to hydrogenation treatment is used, when applied to an ultraviolet attracting type insect trap, the tackifier deteriorates due to ultraviolet light, and as a result, the adhesive layer hardens and captures flying insects. Decreases.
水素添加処理された粘着付与剤としては、例えば水素添加ロジン系粘着付与剤、水素添加テルペン系粘着付与剤、水素添加石油樹脂系粘着付与剤などを挙げることができる。これらの粘着付与剤は、１種を単独で用いてもよいし、２種以上を組み合わせて用いてもよいが、これらの中で、水素添加石油樹脂系粘着付与剤が、紫外光による劣化が少なく、好適である。
本発明の捕虫用粘着シートにおいて、粘着剤層中の当該粘着付与剤の含有量は、前記ポリオレフィン系高分子エラストマー１００質量部に対して、２０質量部以上８０質量部未満であることが好ましい。当該粘着付与剤の含有量が２０質量部未満であると、剥離シートから粘着シートを剥がす際の粘着剤層の凝集破壊の発生や、保存安定性の低下などが生じやすく、一方８０質量部以上であると捕虫性の低下や、紫外線誘引型の捕虫器に適用した場合、紫外光による粘着剤層の硬化が生じやすい。当該粘着付与剤のより好ましい含有量は２５〜７５質量部である。
本発明の捕虫用粘着シートにおける粘着剤層には、本発明の効果が損なわれない範囲で、必要に応じ３４０〜４４０ｎｍの波長領域以外の紫外線吸収剤、光安定剤、酸化防止剤、防腐剤、防錆剤、可塑剤、無機粉末や金属粉末などの充填剤、着色剤等の公知の各種添加剤あるいはフェロモンなどの誘引物質などを含有させることができる。
Examples of hydrogenated tackifiers include hydrogenated rosin tackifiers, hydrogenated terpene tackifiers, hydrogenated petroleum resin tackifiers, and the like. These tackifiers may be used alone or in combination of two or more, but among these, the hydrogenated petroleum resin tackifier is deteriorated by ultraviolet light. Less suitable.
In the insect trapping pressure-sensitive adhesive sheet of the present invention, the content of the tackifier in the pressure-sensitive adhesive layer is preferably 20 parts by mass or more and less than 80 parts by mass with respect to 100 parts by mass of the polyolefin polymer elastomer. When the content of the tackifier is less than 20 parts by mass, it is easy to cause cohesive failure of the pressure-sensitive adhesive layer when the adhesive sheet is peeled off from the release sheet, or to decrease storage stability. On the other hand, 80 parts by mass or more When it is, when it applies to the insect trapping fall and an ultraviolet attracting type insect trap, the adhesive layer is easily cured by ultraviolet light. The more preferable content of the tackifier is 25 to 75 parts by mass.
The pressure-sensitive adhesive layer in the insect trapping pressure-sensitive adhesive sheet of the present invention is an ultraviolet absorber other than the wavelength region of 340 to 440 nm, a light stabilizer, an antioxidant, and an antiseptic, as necessary, as long as the effects of the present invention are not impaired. Further, rust inhibitors, plasticizers, fillers such as inorganic powder and metal powder, various known additives such as colorants, or attractants such as pheromones can be contained.
次に、基材シートの一方の面に粘着剤層を形成する方法について説明する。
まず、前記のポリオレフィン系高分子エラストマーと、軟化点が８５℃以上の水素添加処理された粘着付与剤とを所定の割合で含み、必要に応じて前記の各種添加剤を含む粘着剤組成物を調製する。なお、この粘着剤組成物の調製においては、無溶媒で行ってもよいし、必要に応じ適当な溶媒を適宜含有させることができる。
次に、このようにして調製された粘着剤組成物を、無溶媒の場合はホットメルト化し基材シートの一方の面に塗布、冷却固化して粘着剤層を形成させる。また、粘着剤組成物を溶媒希釈した場合は、基材シートの一方の面に塗布、乾燥して粘着剤層を形成させる。粘着剤組成物を基材シートの一方の面に塗布する方法としては、特に制限はなく、従来公知の塗布装置が使用可能であり、例えば、ナイフコーター、ロールコーター、ロールナイフコーター、エアナイフコーター、バーコーター、ダイコーター、カーテンコーター、グラビアコーター等の塗布装置による方法が挙げられる。
粘着剤層の厚さは、特に制限はないが、通常１０〜２００μｍであり、好ましくは１５〜１５０μｍであり、より好ましくは２０〜１００μｍである。
このようにして形成された粘着剤層の上に、所望により剥離シートを設けることができる。
また、別の方法として、剥離シートの剥離処理面に、前記の塗布装置を使用し、粘着剤組成物を塗布して、前記厚さの粘着剤層を形成したのち、この粘着剤層上に基材シートを貼り合わせる方法を用いることもできる。
Next, a method for forming the pressure-sensitive adhesive layer on one surface of the base sheet will be described.
First, a pressure-sensitive adhesive composition containing the polyolefin polymer elastomer and a hydrogenation-treated tackifier having a softening point of 85 ° C. or higher in a predetermined ratio, and optionally containing the various additives. Prepare. In addition, in preparation of this adhesive composition, you may carry out without a solvent and can contain a suitable solvent suitably as needed.
Next, the pressure-sensitive adhesive composition thus prepared is hot-melted in the absence of a solvent, and is applied to one surface of the base sheet and cooled and solidified to form a pressure-sensitive adhesive layer. When the pressure-sensitive adhesive composition is diluted with a solvent, the pressure-sensitive adhesive composition is applied to one surface of the substrate sheet and dried to form a pressure-sensitive adhesive layer. The method for applying the pressure-sensitive adhesive composition to one surface of the substrate sheet is not particularly limited, and a conventionally known coating apparatus can be used. For example, a knife coater, a roll coater, a roll knife coater, an air knife coater, Examples thereof include a method using a coating apparatus such as a bar coater, a die coater, a curtain coater, or a gravure coater.
Although there is no restriction | limiting in particular in the thickness of an adhesive layer, Usually, it is 10-200 micrometers, Preferably it is 15-150 micrometers, More preferably, it is 20-100 micrometers.
A release sheet can be provided as desired on the pressure-sensitive adhesive layer thus formed.
As another method, the pressure-sensitive adhesive composition is applied to the release treatment surface of the release sheet, and the pressure-sensitive adhesive layer having the thickness is formed on the pressure-sensitive adhesive layer. A method of bonding the base sheet can also be used.
前記剥離シートとしては、例えばグラシン紙のような高密度原紙、クレーコート紙、クラフト紙、上質紙などの紙、又はそれらの紙にポリエチレン樹脂などをラミネートしたラミネート紙、あるいはポリエチレンテレフタレート、ポリエチレンナフタレート、ポリオレフィンなどのプラスチックフィルムに、フッ素樹脂やシリコーン樹脂などの剥離剤を乾燥質量で０.１〜３ｇ／ｍ2程度になるように塗布し、熱硬化や紫外線硬化などによって剥離層を設けたものなどが挙げられる。この剥離シートの厚さについては特に制限はないが、通常２５〜２００μｍの範囲である。
本発明の捕虫用粘着シートにおいては、当該粘着シートの粘着剤層面同士を重ね合わせた場合の粘着剤層のせん断力が１２〜８０Ｎ／３５ｍｍ×３５ｍｍであることを要す。このせん断力が１２Ｎ／３５ｍｍ×３５ｍｍ未満では剥離シート上から粘着シートを剥離する際の粘着剤層の凝集破壊や、粘着剤のしみ出しなどの保存安定性に劣り、一方８０Ｎ／３５ｍｍ×３５ｍｍを超えると捕虫性が悪くなる。好ましいせん断力は１５〜７０Ｎ／３５ｍｍ×３５ｍｍである。なお、せん断力は捕虫用粘着シートを紫外線に曝露する前に測定した値である。
本発明の捕虫用粘着シートは、適当な場所に設置して、飛翔性害虫を捕獲してもよいが、以下に示すように、紫外線誘引型の捕虫器に適用し、走光性害虫を捕獲することが好ましい。
この場合、本発明の捕虫用粘着シートにおける波長３４０〜４４０ｎｍにおける紫外線透過率の最小値が７０％以上であって、背面（基材シート）側から３４０〜４４０ｎｍの波長領域に発光ピークを有する紫外光を透過させ、粘着剤層面に走光性害虫を誘引・捕獲する方法を用いることができる。
前記紫外線透過率が７０％未満では誘虫性が低下し、また紫外線による物性低下が生じやすくなる。該紫外線透過率は８０％以上であることが好ましい。
具体的には、３４０〜４４０ｎｍの波長領域に発光ピークをもつ紫外光を発するタテ型光源をセットした捕虫器の支柱などに本発明の捕虫用シートを粘着剤層が前面側になるように、両面粘着テープなどを用いて装着することにより、走光性害虫を捕獲する。
Examples of the release sheet include high-density base paper such as glassine paper, clay-coated paper, kraft paper, high-quality paper, or laminated paper obtained by laminating polyethylene resin to these paper, or polyethylene terephthalate, polyethylene naphthalate. A release film such as a fluororesin or a silicone resin is applied to a plastic film such as polyolefin so that the dry mass is about 0.1 to 3 g / m 2 , and a release layer is provided by heat curing or ultraviolet curing. Etc. Although there is no restriction | limiting in particular about the thickness of this peeling sheet, Usually, it is the range of 25-200 micrometers.
In the insect trapping pressure-sensitive adhesive sheet of the present invention, it is necessary that the shearing force of the pressure-sensitive adhesive layer when the pressure-sensitive adhesive layer surfaces of the pressure-sensitive adhesive sheet are superposed is 12 to 80 N / 35 mm × 35 mm. When this shearing force is less than 12 N / 35 mm × 35 mm, the storage stability such as cohesive failure of the pressure-sensitive adhesive layer when the pressure-sensitive adhesive sheet is peeled off from the release sheet, or exudation of the pressure-sensitive adhesive is inferior, while 80 N / 35 mm × 35 mm is used. If it exceeds, the insect trapping property becomes worse. A preferable shearing force is 15 to 70 N / 35 mm × 35 mm. The shearing force is a value measured before the insect trapping adhesive sheet is exposed to ultraviolet rays.
The insect trapping pressure-sensitive adhesive sheet of the present invention may be installed in an appropriate place to capture flying insects. However, as shown below, the insect trapping adhesive sheet is applied to an ultraviolet attracting insect trap and captures phototactic insects. It is preferable.
In this case, the minimum value of ultraviolet transmittance at a wavelength of 340 to 440 nm in the insect trapping pressure-sensitive adhesive sheet of the present invention is 70% or more, and an ultraviolet having an emission peak in a wavelength region of 340 to 440 nm from the back surface (base material sheet) side. It is possible to use a method of transmitting light and attracting / capturing phototactic pests on the surface of the pressure-sensitive adhesive layer.
If the ultraviolet transmittance is less than 70%, the attracting property is lowered, and the physical properties are easily lowered by ultraviolet rays. The ultraviolet transmittance is preferably 80% or more.
Specifically, the insect trap sheet of the present invention is placed on the front side of the insect trap column and the like, which is a vertical trap light source that emits ultraviolet light having an emission peak in the wavelength region of 340 to 440 nm. By using double-sided adhesive tape, etc., the photo-grown pests are captured.
次に、本発明を実施例により、さらに詳細に説明するが、本発明は、これらの例によってなんら限定されるものではない。
なお、各例で得られた粘着シートの性能を以下に示す方法に従って評価した。
（１）剥離性
ＪＩＳ Ｚ ０２３７に準拠して、幅５０ｍｍの粘着シートを剥離シートから、１０ｍ／ｍｉｎの剥離速度で１８０°剥離して、剥離力を測定した。
（２）紫外線透過率
粘着シートから剥離シートを剥がし、このサンプルについて、紫外可視分光光度計［島津製作所社製、機種名「ＵＶ−３１０１ＰＣ」］を用いて、波長３４０〜４４０ｎｍの紫外線透過率の最小値を測定した。
（３）せん断力
２３℃、５０％ＲＨの環境下で、幅３５ｍｍの粘着シートの基材シート側を両面テープを用いてステンレス鋼板に固定した試料を２つ用意し、その後、剥離シートを３５ｍｍ剥がしたのち、露出した粘着剤層面同士を重ね合わせ、１９.６Ｎローラーを用いて５往復して貼付した。
貼付３０分後、引張り試験機［オリエンテック社製、機種名「ＵＴＭ−４−１００」］を用いて、ＪＩＳ Ｚ ０２３７に準拠し、速度３００ｍｍ／ｍｉｎの条件でせん断力を測定した。
（４）紫外線劣化性
粘着シートから剥離シートを剥がし、粘着剤層の反対面から、フェードメーター試験機［スガ試験機社製、機種名「Ｕ４８」、光源カーボンアークランプ］を用いて２５時間照射したのち、前記（３）と同様にしてせん断力を測定した。
（５）捕虫性
波長３４０〜４４０ｎｍの波長領域に発光ピークをもつ紫外光を発する蛍光灯をセットしたトーセロパックス(株)製捕虫ポールに、剥離シートを剥がした粘着シートの基材側を、両面粘着テープで貼付し、埼玉県蕨市錦町５−１４−４２の場所に３０日間放置したのち、捕虫数を目視にて観察し、下記の判定基準で評価した。
◎：比較例１と同程度に捕獲された虫の数が多い。
○：捕獲された虫の数は多いが、比較例１よりも少ない。
×：捕獲された虫の数が、比較例１に比べてはるかに少ない。
EXAMPLES Next, although an Example demonstrates this invention further in detail, this invention is not limited at all by these examples.
In addition, the performance of the adhesive sheet obtained in each example was evaluated according to the method shown below.
(1) Peelability Based on JIS Z 0237, the adhesive sheet having a width of 50 mm was peeled from the release sheet by 180 ° at a peeling speed of 10 m / min, and the peeling force was measured.
(2) Ultraviolet transmittance The release sheet is peeled off from the pressure-sensitive adhesive sheet, and this sample has an ultraviolet transmittance of a wavelength of 340 to 440 nm using an ultraviolet-visible spectrophotometer [manufactured by Shimadzu Corporation, model name “UV-3101PC”]. The minimum value was measured.
(3) Shear force Under the environment of 23 ° C. and 50% RH, two samples were prepared by fixing the base sheet side of the adhesive sheet having a width of 35 mm to a stainless steel plate using a double-sided tape. After peeling off, the exposed pressure-sensitive adhesive layer surfaces were superposed and pasted 5 times using a 19.6N roller.
30 minutes after sticking, using a tensile tester [Orientec Co., Ltd., model name “UTM-4-100”], the shearing force was measured at a speed of 300 mm / min according to JIS Z 0237.
(4) UV degradation The release sheet is peeled off from the pressure-sensitive adhesive sheet and irradiated for 25 hours from the opposite side of the pressure-sensitive adhesive layer using a fade meter tester [Suga Test Instruments, model name “U48”, light source carbon arc lamp]. After that, the shear force was measured in the same manner as (3) above.
(5) Insect catching property The base material side of the adhesive sheet from which the release sheet has been peeled off to the insect trap made by Toselopacs Co., Ltd., which is set with a fluorescent lamp that emits ultraviolet light having an emission peak in the wavelength range of 340 to 440 nm, Affixed with a double-sided adhesive tape and left for 30 days in 5-14-42 Nishiki-cho, Sakai City, Saitama Prefecture, the number of insects was observed visually and evaluated according to the following criteria.
A: The number of insects captured to the same extent as in Comparative Example 1 is large.
○: The number of captured insects is large, but less than Comparative Example 1.
X: The number of captured insects is much smaller than that of Comparative Example 1.
実施例１
ポリブテン、ポリイソブチレン系樹脂［新日本石油化学(株)製、商品名「エバータック」］１００質量部（固形分）と、粘着付与剤として水素添加石油樹脂［荒川化学工業(株)製、商品名「アルコンＰ−１２５」、軟化点１２５℃］３０質量部（固形分）を混合して粘着剤組成物を調製した。
この粘着剤組成物を、グラシン紙の片面にシリコーン処理された剥離シート上に、ダイコーターにより厚さが３０μｍになるようにホットメルト塗布したのち、厚さ３８μｍのポリエチレンテレフタレート（ＰＥＴ）フィルム［東レ社製、商品名「ルミラー」］に貼り合わせて粘着シートを作製した。この粘着シートの性能を評価した。結果を第１表に示す。
実施例２
実施例１において、水素添加石油樹脂の添加量を５０質量部（固形分）に変更した以外は、実施例１と同様に実施して粘着シートを作製し、性能評価を行った。その結果を第１表に示す。
実施例３
実施例１において、水素添加石油樹脂の添加量を７０質量部（固形分）に変更した以外は、実施例１と同様に実施して粘着シートを作製し、性能評価を行った。その結果を第１表に示す。
実施例４
実施例１において、粘着付与剤として水素添加石油樹脂［荒川化学工業(株)製、商品名「アルコンＰ−９０」、軟化点９０℃］を用い、添加量を５０質量部（固形分）にした以外は、実施例１と同様に実施して粘着シートを作製し、性能評価を行った。その結果を第１表に示す。
Example 1
Polybutene, polyisobutylene resin [manufactured by Shin Nippon Petrochemical Co., Ltd., trade name “Evertac”] 100 parts by mass (solid content), hydrogenated petroleum resin [Arakawa Chemical Industries, Ltd. The name “Arcon P-125”, softening point 125 ° C.] 30 parts by mass (solid content) was mixed to prepare an adhesive composition.
This pressure-sensitive adhesive composition was hot-melt coated with a die coater on a release sheet treated with silicone on one side of glassine paper to a thickness of 30 μm, and then a polyethylene terephthalate (PET) film with a thickness of 38 μm [Toray Industries, Inc. A pressure-sensitive adhesive sheet was produced by bonding to a product name “Lumirror”. The performance of this adhesive sheet was evaluated. The results are shown in Table 1.
Example 2
In Example 1, except having changed the addition amount of hydrogenated petroleum resin into 50 mass parts (solid content), it implemented like Example 1 and produced the adhesive sheet, and performed performance evaluation. The results are shown in Table 1.
Example 3
In Example 1, except having changed the addition amount of hydrogenated petroleum resin into 70 mass parts (solid content), it implemented like Example 1 and produced the adhesive sheet, and performed performance evaluation. The results are shown in Table 1.
Example 4
In Example 1, a hydrogenated petroleum resin [Arakawa Chemical Industries, Ltd., trade name “Arcon P-90”, softening point 90 ° C.] was used as a tackifier, and the addition amount was 50 parts by mass (solid content). Except having done, it carried out similarly to Example 1 and produced the adhesive sheet, and performed performance evaluation. The results are shown in Table 1.
実施例５
実施例１において、粘着付与剤として水素添加テルペン樹脂［ヤスハラケミカル(株)製、商品名「クリアロンＰ−１１５」、軟化点１１５℃］を用い、添加量を５０質量部（固形分）にした以外は、実施例１と同様に実施して粘着シートを作製し、性能評価を行った。その結果を第１表に示す。
比較例１
実施例１において、粘着付与剤を添加しなかったこと以外は、実施例１と同様に実施して粘着シートを作製し、性能評価を行った。その結果を第１表に示す。
比較例２
実施例１において、水素添加石油樹脂の添加量を１０質量部（固形分）に変更した以外は、実施例１と同様に実施して粘着シートを作製し、性能評価を行った。その結果を第１表に示す。
比較例３
実施例１において、水素添加石油樹脂の添加量を９０質量部（固形分）に変更した以外は、実施例１と同様に実施して粘着シートを作製し、性能評価を行った。その結果を第１表に示す。
比較例４
実施例１において、粘着付与剤として水素添加石油樹脂［荒川化学工業(株)製、商品名「アルコンＰ−７０」、軟化点７０℃］を用い、添加量を５０質量部（固形分）にした以外は、実施例１と同様に実施して粘着シートを作製し、性能評価を行った。その結果を第１表に示す。
参考例１
ラベル用粘着シート［リンテック(株)製、商品名「ＰＥＴ３８ＰＬシン８ＬＫ」］について捕虫性を評価した。その結果を第１表に示す。
Example 5
In Example 1, a hydrogenated terpene resin [manufactured by Yasuhara Chemical Co., Ltd., trade name “Clearon P-115”, softening point 115 ° C.] was used as a tackifier, and the addition amount was 50 parts by mass (solid content). Were carried out in the same manner as in Example 1 to produce a pressure-sensitive adhesive sheet and evaluated the performance. The results are shown in Table 1.
Comparative Example 1
In Example 1, except having not added the tackifier, it implemented like Example 1 and produced the adhesive sheet, and performed performance evaluation. The results are shown in Table 1.
Comparative Example 2
In Example 1, except having changed the addition amount of hydrogenated petroleum resin into 10 mass parts (solid content), it implemented similarly to Example 1 and produced the adhesive sheet, and performed performance evaluation. The results are shown in Table 1.
Comparative Example 3
In Example 1, except having changed the addition amount of hydrogenated petroleum resin into 90 mass parts (solid content), it implemented like Example 1 and produced the adhesive sheet, and performed performance evaluation. The results are shown in Table 1.
Comparative Example 4
In Example 1, a hydrogenated petroleum resin [Arakawa Chemical Industries, Ltd., trade name “Arcon P-70”, softening point 70 ° C.] was used as a tackifier, and the addition amount was 50 parts by mass (solid content). Except having done, it carried out similarly to Example 1 and produced the adhesive sheet, and performed performance evaluation. The results are shown in Table 1.
Reference example 1
The trapping property was evaluated for the pressure-sensitive adhesive sheet for labels [manufactured by Lintec Corporation, trade name “PET38PL Thin 8LK”]. The results are shown in Table 1.
［注］総合評価：剥離性、紫外線劣化性及び捕虫性についての総合評価で、○は合格、×は不合格を示す。
第１表から分かるように、本発明の粘着シート（実施例１〜５）は、いずれも剥離性、紫外線透過率、紫外線劣化性、捕虫性及び総合評価の全てについて合格である。
[Note] Comprehensive evaluation: It is comprehensive evaluation about peelability, ultraviolet degradation property, and insect trapping property.
As can be seen from Table 1, the pressure-sensitive adhesive sheets (Examples 1 to 5) of the present invention all pass all of the peelability, the ultraviolet transmittance, the ultraviolet deterioration property, the insect trapping property and the comprehensive evaluation.
本発明の捕虫用粘着シートは、基材シートの一方の面に捕虫用の粘着剤層を有し、飛翔性害虫を効率よく捕殺し得ると共に、加工性や保存性が良好であり、しかも紫外線透過性及び耐紫外線劣化性に優れ、特に紫外線誘引型の捕虫器に好適に使用することができる。 The insect trapping pressure-sensitive adhesive sheet of the present invention has a trapping pressure-sensitive adhesive layer on one side of the substrate sheet, can efficiently kill flying pests, has good workability and storage stability, and has an ultraviolet ray. It is excellent in transparency and UV resistance, and can be suitably used particularly for an ultraviolet attracting type insect trap.
Claims (4)
せん断力試験
２３℃、５０％ＲＨの環境下で、幅３５ｍｍの粘着シートの基材シート側を両面テープを用いてステンレス鋼板に固定した試料を２つ用意し、その後、剥離シートを３５ｍｍ剥がしたのち、露出した粘着剤層面同士を重ね合わせ、１９.６Ｎローラーを用いて５往復して貼付し、貼付３０分後、引張り試験機［オリエンテック社製、機種名「ＵＴＭ−４−１００」］を用いて、ＪＩＳ Ｚ ０２３７に準拠し、速度３００ｍｍ／ｍｉｎの条件でせん断力を測定する。 A pressure-sensitive adhesive comprising a polyolefin-based polymer elastomer and a hydrogenated rosin-based tackifier having a softening point of 85 ° C. or higher, a hydrogenated terpene-based tackifier, or a hydrogenated petroleum resin-based tackifier on one surface of a substrate sheet A pressure-sensitive adhesive sheet having a layer, wherein the content of the tackifier in the pressure-sensitive adhesive layer is 20 parts by mass or more and less than 80 parts by mass with respect to 100 parts by mass of the polyolefin-based polymer elastomer. minimum shear strength of the pressure-sensitive adhesive layer when superimposed pressure-sensitive adhesive layer faces the measured PSA sheet is Ri 12~80N / 35mm × 35mm der, the PSA sheet is an ultraviolet transmittance at a wavelength of 340~440nm The value is 70% or more, and from the back surface (base material sheet) side, ultraviolet light having an emission peak in the wavelength region of 340 to 440 nm is transmitted, Insect trapping adhesive sheet is characterized in that to attract, capture phototaxis pests Chakuzai layer surface.
Shear force test
Prepare two samples in which the base sheet side of the adhesive sheet with a width of 35 mm was fixed to a stainless steel plate using a double-sided tape in an environment of 23 ° C. and 50% RH. The pressure-sensitive adhesive layer surfaces were overlapped and pasted 5 times using a 19.6N roller, and after 30 minutes of pasting, using a tensile tester [Orientec, model name “UTM-4-100”]. In accordance with JIS Z 0237, the shear force is measured under the condition of a speed of 300 mm / min.
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