JP7430878B2 - Vine prevention sheet - Google Patents
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- JP7430878B2 JP7430878B2 JP2020009197A JP2020009197A JP7430878B2 JP 7430878 B2 JP7430878 B2 JP 7430878B2 JP 2020009197 A JP2020009197 A JP 2020009197A JP 2020009197 A JP2020009197 A JP 2020009197A JP 7430878 B2 JP7430878 B2 JP 7430878B2
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Description
特許法第３０条第２項適用 令和元年８月２１日 香川県農場試験場満濃地（香川仲多度郡まんのう町炭所西２２５３－１）において試験施行Application of Article 30, Paragraph 2 of the Patent Law August 21, 2019 Test conducted at Kagawa Prefecture Farm Experiment Station Mannoji (2253-1 Tanjo Nishi, Manno-cho, Nakatado-gun, Kagawa)
特許法第３０条第２項適用 令和元年１０月１７日 三重県四日市市智積町３３５９付近の東名阪自動車道傍の傾斜地において試験施行Application of Article 30, Paragraph 2 of the Patent Act October 17, 2019 Test carried out on a sloped land beside the Higashi-Meihan Expressway near 3359 Chizumi-cho, Yokkaichi City, Mie Prefecture
本発明は、地面に敷設する防つるシートに関し、特に山を切り開いて建設した道路の両側の法面に敷設するのに適した防つるシートに関するものである。 The present invention relates to an anti-slip sheet to be laid on the ground, and particularly to an anti-slip sheet suitable for laying on slopes on both sides of a road constructed by cutting through a mountain.
従来より、地面から雑草等の植物が生育するのを抑制するため、地面に防草シートを敷設することが行われている。かかる防草シートとして、表面側から、短繊維不織布よりなる保水層、アスファルトよりなる遮光層及び長繊維不織布よりなる補強層の順で積層一体化してなるものが知られている（特許文献１、請求項１）。そして、アスファルトよりなる遮光層に植物忌避剤を含有させることも提案されている（特許文献１、段落００４３）。 BACKGROUND ART Conventionally, weed control sheets have been laid on the ground in order to suppress plants such as weeds from growing from the ground. As such a weed control sheet, one is known in which a water-retaining layer made of short fiber nonwoven fabric, a light shielding layer made of asphalt, and a reinforcing layer made of long fiber nonwoven fabric are laminated and integrated in this order from the surface side (Patent Document 1, Claim 1). It has also been proposed that a light shielding layer made of asphalt contain a plant repellent (Patent Document 1, paragraph 0043).
かかる防草シートは、地面から雑草が生育するのを防止しうるものの、地面に沿って茎を伸ばすつる植物の生育を抑制することが困難であった。すなわち、防草シートが敷設されていない箇所で生育したつる植物が、地面に沿って防草シート表面まで茎を伸ばし、防草シートをつる植物が覆ってしまうということがあった。なぜなら、防草シート表面が短繊維不織布よりなり保水層で構成されており、植物忌避剤が存在しないからである。 Although such weed control sheets can prevent weeds from growing from the ground, it is difficult to suppress the growth of vines that extend their stems along the ground. That is, the vines that grew in areas where the weed control sheet was not installed would extend their stems along the ground to the surface of the weed control sheet, and the vines would cover the weed control sheet. This is because the surface of the weed control sheet is composed of a water-retaining layer made of short fiber nonwoven fabric, and no plant repellent is present.
このため、短繊維不織布よりなる保水層にも、植物忌避剤を塗布又は含浸させることも考えられる。しかしながら、短繊維不織布に植物忌避剤を塗布又は含浸させても、雨水によって植物忌避剤が流出し、防草シート表面においてつる植物の茎が伸びるのを長期に亙って防止することができなかった。 For this reason, it is also conceivable to apply or impregnate the water retaining layer made of short fiber nonwoven fabric with a plant repellent. However, even if a short fiber nonwoven fabric is coated or impregnated with a plant repellent, the plant repellent is washed away by rainwater, and it is not possible to prevent the stems of vines from growing on the surface of the weed control sheet for a long period of time. Ta.
本発明の課題は、防草シート表面において、つる植物の茎が伸びるのを長期に亙って防止することにある。 An object of the present invention is to prevent the stems of vines from growing on the surface of a weed control sheet over a long period of time.
すなわち、本発明は、表面側から、孔につる忌避剤が付着している複数の多孔質石からなる多孔質石層、つる忌避剤が含まれてなるアスファルト層及びポリエステル不織布層の順で積層一体化されてなる防つるシートに関するものである。 That is, in the present invention, a porous stone layer consisting of a plurality of porous stones having a vine repellent attached to the pores, an asphalt layer containing a vine repellent, and a polyester nonwoven fabric layer are laminated in this order from the surface side. This relates to an integrated vine-proof sheet.
本発明に係る防つるシートは、その表面側が多孔質石層よりなる。多孔質石層は、複数の多孔質石からなり、その質量が３００～７００ｇ／ｍ2程度である。そして、多孔質石の孔には、つる忌避剤が付着している。多孔質石としては、微細な孔の開いた石であれば任意のものが採用しうるが、特に軽石を用いるのが好ましい。多孔質石の粒径は、２～６４ｍｍ程度であるのが好ましい。つる忌避剤としては、従来公知のものが用いられるが、特にクロロトリルオキシプロピオン酸ポリグリコールエステルを用いるのが好ましい。 The anti-vine sheet according to the present invention has a porous stone layer on its surface side. The porous stone layer is composed of a plurality of porous stones and has a mass of about 300 to 700 g/m 2 . A vine repellent is attached to the pores of the porous stone. Any stone with fine pores can be used as the porous stone, but it is particularly preferable to use pumice. The particle size of the porous stone is preferably about 2 to 64 mm. As the vine repellent, conventionally known ones can be used, but it is particularly preferable to use chlorotolyloxypropionic acid polyglycol ester.
多孔質石の孔につる忌避剤を付着させるには、つる忌避剤を含む粘着剤又は接着剤を多孔質石に塗布すればよい。粘着剤又は接着剤としては、従来公知のものを用いることができ、特にアクリル系樹脂を用いるのが好ましい。つる忌避剤の付着量は任意であるが、多孔質石の質量に対して、１～５質量％であるのが好ましい。 To attach the vine repellent to the pores of the porous stone, a pressure-sensitive adhesive or adhesive containing the vine repellent may be applied to the porous stone. As the pressure-sensitive adhesive or adhesive, conventionally known adhesives can be used, and it is particularly preferable to use acrylic resin. The amount of the vine repellent attached is arbitrary, but it is preferably 1 to 5% by mass based on the mass of the porous stone.
多孔質石層の裏面側には、つる忌避剤が含まれてなるアスファルト層が積層されている。アスファルト層の質量は７００～２０００ｇ／ｍ2程度である。つる忌避剤としては、従来公知のものが用いられ、特にクロロトリルオキシプロピオン酸ポリグリコールエステルを用いるのが好ましい。つる忌避剤の含有量は任意であるが、アスファルトの質量に対して、０．１～１．０質量％であるのが好ましい。アスファルトとしては、従来公知の石油アスファルト又は天然アスファルトを用いることができるが、特に改質アスファルトを用いるのが好ましい。改質アスファルトは多孔質石等との付着性に優れており、多孔質石層とアスファルト層及びアスファルト層とポリエステル不織布層との一体化が強固になるからである。また、改質アスファルトは耐候性に優れているからである。アスファルト層は、ポリエステル不織布に含浸されているのが好ましい。すなわち、アスファルト層は、ポリエステル不織布の内部及び裏面まで浸入しているのが好ましい。これにより、敷設した防つるシートの下面からの雑草等の生育を防止することができる。 An asphalt layer containing a vine repellent is laminated on the back side of the porous stone layer. The mass of the asphalt layer is about 700 to 2000 g/m 2 . As the vine repellent, conventionally known ones can be used, and it is particularly preferable to use chlorotolyloxypropionic acid polyglycol ester. The content of the vine repellent is arbitrary, but it is preferably 0.1 to 1.0% by mass based on the mass of asphalt. As the asphalt, conventionally known petroleum asphalt or natural asphalt can be used, but it is particularly preferable to use modified asphalt. This is because the modified asphalt has excellent adhesion to porous stone and the like, and the porous stone layer and the asphalt layer and the asphalt layer and the polyester nonwoven fabric layer are strongly integrated. In addition, modified asphalt has excellent weather resistance. Preferably, the asphalt layer is impregnated with a polyester nonwoven fabric. That is, the asphalt layer preferably penetrates into the inside and back surface of the polyester nonwoven fabric. This makes it possible to prevent weeds and the like from growing from the lower surface of the installed vine-proof sheet.
アスファルト層と一体化されているポリエステル不織布層としては、従来公知のものを用いうるが、ポリエステル長繊維で構成されたスパンボンド不織布を用いるのが好ましい。ポリエステル長繊維は耐候性に優れており、また、引張強度等の機械的強度が高いからである。ポリエステル不織布層の目付は５０～３００ｇ／ｍ2程度である。 As the polyester nonwoven fabric layer integrated with the asphalt layer, conventionally known ones can be used, but it is preferable to use a spunbond nonwoven fabric made of polyester long fibers. This is because polyester long fibers have excellent weather resistance and high mechanical strength such as tensile strength. The basis weight of the polyester nonwoven fabric layer is approximately 50 to 300 g/m 2 .
ポリエステル不織布層の裏面には粘着剤が塗布されているのが好ましい。粘着剤が塗布されていると、防つるシートを地面に敷設する際にずれにくくなり、作業性が向上する。また、粘着剤面には、合成樹脂製フィルムや離型紙等の離型シートを貼着しておくのが好ましい。防つるシートを運搬する際に、べたつきにくくなり、取扱性が向上する。粘着剤及び離型シートが備えた防つるシートは、離型シートを取り除き、粘着剤面を地面に当接しながら、敷設することになる。 Preferably, an adhesive is applied to the back side of the polyester nonwoven fabric layer. If the adhesive is applied, the vine prevention sheet will be less likely to shift when it is laid on the ground, improving work efficiency. Further, it is preferable to attach a release sheet such as a synthetic resin film or release paper to the adhesive surface. When transporting the vine-proof sheet, it becomes less sticky and easier to handle. The anti-slip sheet provided with the adhesive and release sheet is laid down with the release sheet removed and the adhesive surface in contact with the ground.
本発明に係る防つるシートは、以下の如き製造方法で得ることができる。まず、粘着剤液又は接着剤液につる忌避剤を溶解又は分散させた溶液を、多孔質石に塗布して、その孔につる忌避剤が付着した多孔質石が複数準備する。一方、アスファルトにつる忌避剤を含有せしめた忌避剤含有アスファルトを準備する。また、ポリエステル不織布を準備する。そして、忌避剤含有アスファルトを加熱混合して流動状態とし、ポリエステル不織布表面に塗布すると共に、流動状態となっている忌避剤含有アスファルトの上に複数の多孔質石を載置する。以上の方法で、本発明に係る防つるシートを得ることができる。なお、ポリエステル不織布の裏面に粘着剤を塗布し、さらに粘着剤面に離型シートを貼着してもよいことが前述したとおりである。 The anti-slip sheet according to the present invention can be obtained by the following manufacturing method. First, a solution in which a vine repellent is dissolved or dispersed in an adhesive liquid or an adhesive liquid is applied to a porous stone, thereby preparing a plurality of porous stones with the vine repellent attached to their pores. On the other hand, repellent-containing asphalt is prepared by adding a vine repellent to asphalt. Also, prepare a polyester nonwoven fabric. Then, the repellent-containing asphalt is heated and mixed to a fluidized state, and is applied to the surface of the polyester nonwoven fabric, and a plurality of porous stones are placed on the repellent-containing asphalt that is in a fluidized state. The vine-proofing sheet according to the present invention can be obtained by the above method. As described above, an adhesive may be applied to the back surface of the polyester nonwoven fabric, and a release sheet may be further attached to the adhesive surface.
本発明に係る防つるシートは、つる植物の茎が伸びる恐れのある地面に敷設する。たとえば、山を切り開いて建設した道路は、法面からつる植物の茎が伸び、道路に侵入することがある。したがって、この法面に防つるシートを敷設しておけば、道路につる植物の茎が侵入するのを防止することがてきる。 The vine prevention sheet according to the present invention is laid on the ground where the stems of vine plants are likely to grow. For example, when a road is built by cutting through a mountain, the stems of vines can grow from the slope and encroach on the road. Therefore, by laying a protective sheet on the slope, it is possible to prevent the stems of vines from entering the road.
本発明に係る防つるシートは、その表面に、孔につる忌避剤を付着せしめた多孔質石が複数存在している。すなわち、つる忌避剤が孔に付着しているため、雨水等によって、つる忌避剤が流出しにくくなっている。したがって、防つるシートの表面に、つる植物の茎が伸びるのを、長期に亙って防止しうるという効果を奏する。 The anti-vine sheet according to the present invention has a plurality of porous stones on the surface of which a vine repellent is adhered to the pores. That is, since the vine repellent adheres to the holes, it is difficult for the vine repellent to flow out due to rainwater or the like. Therefore, it is possible to prevent the stems of vine plants from growing on the surface of the vine prevention sheet for a long period of time.
実施例１
クロロトリルオキシプロピオン酸ポリグリコールエステルを含有するアクリル系バインダー液を軽石に塗布し、軽石１００質量部に対し、２質量％のクロロトリルオキシプロピオン酸ポリグリコールエステルが付着している多孔質石を準備した。また、改質アスファルト１００質量部とクロロトリルオキシプロピオン酸ポリグリコールエステル０．６質量部を混合し、クロロトリルオキシプロピオン酸ポリグリコールエステル含有アスファルトを準備した。さらに、目付２００ｇ／ｍ2のポリエステルスパンボンド不織布を準備した。そして、クロロトリルオキシプロピオン酸ポリグリコールエステル含有アスファルトを加熱して流動状態とし、ポリエステルスパンボンド不織布に１．３ｋｇ／ｍ2含浸した。その際に、クロロトリルオキシプロピオン酸ポリグリコールエステル含有アスファルトの上に、準備した多数の多孔質石を５００ｇ／ｍ2載置し、防つるシートを得た。
Example 1
An acrylic binder solution containing chlorotolyloxypropionate polyglycol ester is applied to pumice to prepare a porous stone in which 2% by mass of chlorotolyloxypropionate polyglycol ester is attached to 100 parts by mass of pumice. did. Further, 100 parts by mass of modified asphalt and 0.6 parts by mass of chlorotolyloxypropionic acid polyglycol ester were mixed to prepare a chlorotolyloxypropionic acid polyglycol ester-containing asphalt. Furthermore, a polyester spunbond nonwoven fabric with a basis weight of 200 g/m 2 was prepared. Then, the asphalt containing chlorotolyloxypropionate polyglycol ester was heated to a fluid state, and the asphalt was impregnated into a polyester spunbond nonwoven fabric at 1.3 kg/m 2 . At that time, 500 g/m 2 of a large number of prepared porous stones were placed on the asphalt containing chlorotolyloxypropionic acid polyglycol ester to obtain an anti-vine sheet.
Claims (5)
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| Application Number | Priority Date | Filing Date | Title |
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| JP2020009197A JP7430878B2 (en) | 2020-01-23 | 2020-01-23 | Vine prevention sheet |
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| JP2020009197A JP7430878B2 (en) | 2020-01-23 | 2020-01-23 | Vine prevention sheet |
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| JP2021116242A JP2021116242A (en) | 2021-08-10 |
| JP7430878B2 true JP7430878B2 (en) | 2024-02-14 |
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| JP7565884B2 (en) | 2021-07-14 | 2024-10-11 | 三菱重工業株式会社 | Power Conversion Equipment |
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| JP2007222040A (en) | 2006-02-22 | 2007-09-06 | Nippon Non-Woven Fabrics Co Ltd | Root-resistant sheet and manufacturing method thereof |
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| JP2016169562A (en) | 2015-03-13 | 2016-09-23 | 七王工業株式会社 | Weed prevention sheet and using method thereof |
| JP2016220600A (en) | 2015-05-29 | 2016-12-28 | 七王工業株式会社 | Water-permeable grass-proof sheet, grass-proof structure and construction method thereof |
| JP2018149739A (en) | 2017-03-13 | 2018-09-27 | ユニチカ株式会社 | Vine-proof sheet for being applied to vicinity of power line part of utility pole |
| JP2019024348A (en) | 2017-07-26 | 2019-02-21 | スリーエム イノベイティブ プロパティズ カンパニー | Weed-proof sheet |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4329419A1 (en) * | 1993-09-01 | 1995-03-02 | Bayer Ag | Root penetration inhibitors |
| DE4337844A1 (en) * | 1993-11-05 | 1995-05-11 | Bayer Ag | Root penetration inhibitors |
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2020
- 2020-01-23 JP JP2020009197A patent/JP7430878B2/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002335762A (en) | 2001-05-23 | 2002-11-26 | Unitika Ltd | Root-preventive material and root-preventive vessel using the same |
| JP2004166502A (en) | 2002-11-15 | 2004-06-17 | Unitika Ltd | Root-proof material and root-proof container using the same |
| JP2007222040A (en) | 2006-02-22 | 2007-09-06 | Nippon Non-Woven Fabrics Co Ltd | Root-resistant sheet and manufacturing method thereof |
| JP2012065566A (en) | 2010-09-22 | 2012-04-05 | Unitika Ltd | Climbing plant repellent structure attached to construction and building, and climbing plant repellent sheet |
| JP2016169562A (en) | 2015-03-13 | 2016-09-23 | 七王工業株式会社 | Weed prevention sheet and using method thereof |
| JP2016220600A (en) | 2015-05-29 | 2016-12-28 | 七王工業株式会社 | Water-permeable grass-proof sheet, grass-proof structure and construction method thereof |
| JP2018149739A (en) | 2017-03-13 | 2018-09-27 | ユニチカ株式会社 | Vine-proof sheet for being applied to vicinity of power line part of utility pole |
| JP2019024348A (en) | 2017-07-26 | 2019-02-21 | スリーエム イノベイティブ プロパティズ カンパニー | Weed-proof sheet |
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