JP2006143867A - Moisture permeable adhesive sheet for curing of floor - Google Patents
Moisture permeable adhesive sheet for curing of floor Download PDFInfo
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- JP2006143867A JP2006143867A JP2004335307A JP2004335307A JP2006143867A JP 2006143867 A JP2006143867 A JP 2006143867A JP 2004335307 A JP2004335307 A JP 2004335307A JP 2004335307 A JP2004335307 A JP 2004335307A JP 2006143867 A JP2006143867 A JP 2006143867A
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- 239000000853 adhesive Substances 0.000 title claims abstract description 41
- 230000001070 adhesive effect Effects 0.000 title claims abstract description 41
- 239000000463 material Substances 0.000 claims abstract description 36
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 28
- 230000035699 permeability Effects 0.000 claims abstract description 15
- 239000000758 substrate Substances 0.000 claims abstract description 7
- 239000004820 Pressure-sensitive adhesive Substances 0.000 claims description 39
- 239000012779 reinforcing material Substances 0.000 claims description 9
- 239000010410 layer Substances 0.000 claims description 7
- 230000005540 biological transmission Effects 0.000 claims description 6
- 239000011256 inorganic filler Substances 0.000 claims description 3
- 229910003475 inorganic filler Inorganic materials 0.000 claims description 3
- 238000010030 laminating Methods 0.000 claims description 3
- 229920005672 polyolefin resin Polymers 0.000 claims description 3
- 239000002131 composite material Substances 0.000 claims description 2
- 239000003795 chemical substances by application Substances 0.000 claims 1
- 239000012790 adhesive layer Substances 0.000 abstract description 5
- 238000010276 construction Methods 0.000 abstract description 5
- 239000002689 soil Substances 0.000 abstract description 2
- 239000004566 building material Substances 0.000 abstract 1
- 238000001704 evaporation Methods 0.000 abstract 1
- 238000010186 staining Methods 0.000 abstract 1
- -1 polyethylene Polymers 0.000 description 6
- 230000000052 comparative effect Effects 0.000 description 5
- 239000012528 membrane Substances 0.000 description 5
- 229920003002 synthetic resin Polymers 0.000 description 5
- 239000000057 synthetic resin Substances 0.000 description 5
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000001681 protective effect Effects 0.000 description 4
- 239000004698 Polyethylene Substances 0.000 description 3
- 239000004743 Polypropylene Substances 0.000 description 3
- 229920000573 polyethylene Polymers 0.000 description 3
- 229920001155 polypropylene Polymers 0.000 description 3
- 238000010998 test method Methods 0.000 description 3
- 208000027418 Wounds and injury Diseases 0.000 description 2
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 2
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 description 2
- 229910000019 calcium carbonate Inorganic materials 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 238000009408 flooring Methods 0.000 description 2
- 239000012634 fragment Substances 0.000 description 2
- 229920000092 linear low density polyethylene Polymers 0.000 description 2
- 239000004707 linear low-density polyethylene Substances 0.000 description 2
- 229920001684 low density polyethylene Polymers 0.000 description 2
- 239000004702 low-density polyethylene Substances 0.000 description 2
- 239000004745 nonwoven fabric Substances 0.000 description 2
- 238000002834 transmittance Methods 0.000 description 2
- 230000005068 transpiration Effects 0.000 description 2
- 239000004925 Acrylic resin Substances 0.000 description 1
- 229920000178 Acrylic resin Polymers 0.000 description 1
- 206010013647 Drowning Diseases 0.000 description 1
- 229920001410 Microfiber Polymers 0.000 description 1
- 239000003522 acrylic cement Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000010227 cup method (microbiological evaluation) Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 230000002706 hydrostatic effect Effects 0.000 description 1
- 239000012229 microporous material Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 239000011342 resin composition Substances 0.000 description 1
- 238000009987 spinning Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 229920005992 thermoplastic resin Polymers 0.000 description 1
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Abstract
Description
本発明は、住宅などの施工時に床面を覆って、土や泥、部材の破片などのゴミ、雨水などから床面を保護する床面養生用粘着シートに関し、詳しくは、透湿性を有する床養生用粘着シートに関するものである。 The present invention relates to an adhesive sheet for curing a floor surface that covers the floor surface during construction of a house, etc., and protects the floor surface from dirt such as dirt, mud, and member debris, and rainwater, and more specifically, a floor having moisture permeability. The present invention relates to an adhesive sheet for curing.
従来、住宅等の施工時には、作業者の靴に付着した土や泥、部材の破片などのゴミ、雨水などの異物によって床面が汚れたり傷付いたりしないようにするための養生シートが使用されている。例えば、特許文献１には、ポリエチレンやポリプロピレンなどの合成樹脂シートの表面に多数の凹凸が形成され、裏面全面に、シート剥離時に床パネル面に残らないアクリル系樹脂製貼着材が塗布されて成る貼着層が形成されたことを特徴とする床パネル面保護用の保護シート提案されている。 Conventionally, when a house is constructed, a curing sheet is used to prevent the floor surface from being soiled or damaged by foreign matter such as dirt and dirt adhered to workers' shoes, debris such as members, and rainwater. ing. For example, in Patent Document 1, a large number of irregularities are formed on the surface of a synthetic resin sheet such as polyethylene or polypropylene, and an acrylic resin adhesive that does not remain on the floor panel surface when the sheet is peeled is applied to the entire back surface. There has been proposed a protective sheet for protecting the floor panel surface, characterized in that an adhesive layer is formed.
また、養生シートの幅よりも広い箇所の床面を覆うためには、養生シート同士を重ね合わせて展張する必要があるが、シート同士の重なり部分の密着性を良くするために、特許文献２には、合成樹脂フィルムの裏面に粘着剤層を設けたシート状物において、合成樹脂フィルムの表面の長さに沿った少なくとも片端部に１〜１０ｃｍ幅の帯状平坦部と、それ以外の全部に凹凸部を設けた床面保護シートが提案されている。
Moreover, in order to cover the floor surface of the location wider than the width | variety of a curing sheet | seat, it is necessary to overlap | superpose and spread a curing sheet | seat, but in order to improve the adhesiveness of the overlapping part of sheets,
前記の様な保護シートは、合成樹脂製シートの裏面に粘着剤層が形成されているので、シートと床面が密着し易いという優れた性能を有している。そこで、シートと床面が密着するように展張することによって、作業者の靴に付着した土や泥、部材の破片などのゴミ、雨水などの異物によって床面が汚れたり傷付いたりすることを防止できる。しかしながら、展張時の不具合によって保護シートと床面の密着が十分でない場合には、シートの端部や重なり部分に捲れが生じたり、床面と密着していないで浮き上がっている箇所のシートが破れたりして、土や泥、部材の破片などのゴミ、雨水などの異物が床面と保護シートの間に侵入し、床面が汚れたり傷付いたりする場合があった。特に、ポリエチレンやポリプロピレンなどの合成樹脂からなるシートは防水性に優れているという優れた点があるものの、水蒸気の透過量が非常に少ない。そのため、一度、床面とシートの間に雨水などが浸入すると、水分が長期間にわたって床面とシートの間に留まり、床面にシミが発生したり、梅雨時や夏場など、場合によってはカビが発生するという問題があった。 The protective sheet as described above has an excellent performance that the sheet and the floor surface are in close contact with each other because the pressure-sensitive adhesive layer is formed on the back surface of the synthetic resin sheet. Therefore, by spreading so that the sheet and the floor surface are in close contact with each other, the floor surface becomes dirty or damaged by foreign matter such as dirt and mud adhering to the worker's shoes, debris such as member fragments, and rainwater. Can be prevented. However, if the protective sheet and the floor are not sufficiently in close contact due to a failure during expansion, the edge of the sheet or the overlapping portion may be wrinkled, or the sheet that is floating without being in close contact with the floor may be torn. In some cases, foreign matter such as dirt, mud, broken pieces of members, rainwater, and the like enter between the floor surface and the protective sheet, and the floor surface may become dirty or damaged. In particular, a sheet made of a synthetic resin such as polyethylene or polypropylene has an excellent point that it is excellent in waterproofness, but has a very small amount of water vapor. For this reason, once rainwater or the like enters between the floor and the sheet, the moisture stays between the floor and the sheet for a long period of time, causing stains on the floor, mold in some cases such as during the rainy season or summer. There was a problem that occurred.
本発明は、上記問題を鑑みなされたもので、作業者の靴に付着した土や泥、部材の破片などのゴミ、雨水などの異物によって床面が汚れたり傷付いたりすることを防止することができるのはもちろんのこと、万が一、床面とシートの間に雨水などが侵入した場合でも、床面とシートの間に水分が短期間で外部に蒸散され、床面にシミやカビの発生を防止することが可能な、透湿性床面養生用粘着シートを提供することを課題とする。 The present invention has been made in view of the above problems, and prevents the floor surface from being soiled or damaged by foreign matter such as dirt and mud adhering to an operator's shoes, debris such as member fragments, and rainwater. Of course, even if rainwater or the like enters between the floor and the sheet, moisture is transpired between the floor and the sheet in a short period of time, causing stains and mold on the floor. It is an object of the present invention to provide a pressure-sensitive adhesive sheet for moisture-permeable floor curing that can prevent the above.
本発明者らは鋭意検討を行った結果、シート基材として透湿防水性を有するシート基材を使用し、シート基材の全面積に対して一定割合以上の粘着剤の非塗布部を形成することで、万が一、床面とシートの間に雨水などが侵入した場合でも、床面とシートの間に侵入した水分を短期間で外部に蒸散することが可能となり、床面にシミやカビの発生を防止することが可能であることを見出し、本発明に至った。
即ち、本発明によれば、
（１）水蒸気透過率が１０００〜２００００ｇ／ｍ２・２４ｈであり、かつ、耐水度が５０ｃｍ・Ｈ２Ｏ以上であるシート基材の一方の面に、シート基材の全面積の少なくとも３０％以上が粘着剤の非塗布部となるように粘着剤層が形成されてなることを特徴とする透湿性床養生用粘着シートが提供され、
（２）前記の透湿防水性を有するシート基材が、ポリオレフィン系樹脂と無機充填剤からなる微多孔性の透湿防水膜と通気性補強材とを積層してなる複合シートであることを特徴とする（１）に記載の透湿性床養生用粘着シートが提供され、
（３）前記の粘着剤層が、シート基材の両側部の長手方向に適宜幅で形成され、かつ、両側部以外にはシート基材の長手方向に連続した粘着剤の塗布部と非塗布部が、適宜間隔で交互に形成されていることを特徴とする（１）または（２）に記載の透湿性床養生用粘着シートが提供される。
As a result of intensive studies, the inventors used a sheet base material having moisture permeability and waterproofness as a sheet base material, and formed a non-applied part of the adhesive at a certain ratio or more with respect to the total area of the sheet base material. In the unlikely event that rainwater or the like enters between the floor and the sheet, moisture that has entered between the floor and the sheet can be evaporated to the outside in a short period of time. The inventors have found that it is possible to prevent the occurrence of this, and have reached the present invention.
That is, according to the present invention,
(1) At least 30% of the total area of the sheet substrate on one surface of the sheet substrate having a water vapor transmission rate of 1000 to 20000 g / m 2 · 24 h and a water resistance of 50 cm · H 2 O or more. Provided is a pressure-sensitive adhesive sheet for moisture-permeable floor curing, wherein the pressure-sensitive adhesive layer is formed so that the above is a non-applied part of the pressure-sensitive adhesive,
(2) The sheet base material having moisture permeability and waterproofness is a composite sheet obtained by laminating a microporous moisture permeability waterproof film made of a polyolefin resin and an inorganic filler and a breathable reinforcing material. A moisture-permeable floor curing pressure-sensitive adhesive sheet according to (1) is provided,
(3) The pressure-sensitive adhesive layer is formed with an appropriate width in the longitudinal direction of both side portions of the sheet base material, and other than the both side portions, the pressure-sensitive adhesive coating portion continuous with the longitudinal direction of the sheet base material is not applied. The adhesive sheet for moisture-permeable floor curing according to (1) or (2) is provided, wherein the portions are alternately formed at appropriate intervals.
本発明の透湿性床面養生用粘着シートは、透湿性と防水性を兼ね備え、かつ、一方の面に粘着剤層が形成されているので床材との密着性が優れており、作業者の靴に付着した土や泥、部材の破片などのゴミなどの異物や、雨水が床面とシート間に侵入することが防止できる。さらに、万が一、シートが捲れるなどして雨水が床面とシート間に侵入した場合でも、本発明の床面養生用粘着シートは透湿性を有しているので、短期間で水分が外部に蒸散され、床面にシミやカビが発生することを防止することが可能となる。 The moisture-permeable floor-curing pressure-sensitive adhesive sheet of the present invention has both moisture permeability and waterproofness, and has an adhesive layer on one side, so that it has excellent adhesion to the flooring material. It is possible to prevent foreign matters such as dirt such as soil and mud adhering to shoes, and pieces of members, and rainwater from entering between the floor surface and the sheet. In addition, even if rainwater enters between the floor and the sheet due to drowning, the floor-curing pressure-sensitive adhesive sheet of the present invention has moisture permeability, so that moisture can be exposed to the outside in a short period of time. It is possible to prevent transpiration and generation of stains and mold on the floor surface.
以下に本発明を詳細に説明する。
本発明の透湿性床面養生用粘着シートには、透湿防水性を有するシート基材が使用される。透湿防水性を有するシート基材としては、例えば、フラッシュ紡糸法で形成される熱可塑性樹脂の連続性極細繊維に高熱を加えて高密度に結合させた不織布シートや、低密度ポリエチレンや高密度ポリエチレン、直鎖状低密度ポリエチレン、ポリプロピレンなどのポリオレフィン系樹脂に炭酸カルシウムや硫酸バリウムなどの無機充填剤を配合してシート状に形成した後に、少なくとも一軸方向に延伸加工を施した微多孔性の透湿防水膜などを例示することができる。特に、上記微多孔性の透湿防水膜と長繊維不織布や、割繊維不織布並びにネット状物などの格子網状体からなる通気性補強材とを積層してなる透湿防水性シートを、シート基材として使用することがより好ましい。
The present invention is described in detail below.
For the moisture-permeable floor-curing pressure-sensitive adhesive sheet of the present invention, a sheet substrate having moisture-permeable and waterproof properties is used. Examples of the sheet base material having moisture permeability and waterproofness include, for example, a nonwoven sheet obtained by applying high heat to a continuous ultrafine fiber of a thermoplastic resin formed by a flash spinning method, and a low density polyethylene or a high density. After forming into a sheet by blending an inorganic filler such as calcium carbonate or barium sulfate with a polyolefin-based resin such as polyethylene, linear low-density polyethylene, or polypropylene, a microporous material that is stretched at least in a uniaxial direction. A moisture permeable waterproof membrane etc. can be illustrated. In particular, a moisture-permeable waterproof sheet formed by laminating the above-described microporous moisture-permeable waterproof film and a long-fiber nonwoven fabric, a breathable reinforcing material made of a lattice network such as a split fiber nonwoven fabric and a net-like material, More preferably, it is used as a material.
本発明の透湿性床養生用粘着シートに使用されるシート基材の水蒸気透過率は、１０００〜２００００ｇ／ｍ２・２４ｈであることが好ましく、２０００〜１００００ｇ／ｍ２・２４ｈであることがより好ましい。
水蒸気透過率が１０００ｇ／ｍ２・２４ｈ未満では、床養生用粘着シートを透過する水蒸気の量が少ないために、床面と床養生用粘着シート間に侵入した水分が短期間で外部に蒸散されず、床面にシミやカビが発生する恐れがあり好ましくない。また、水蒸気透過率が２００００ｇ／ｍ２・２４ｈを超えると、水蒸気の透過量が多く床面と床養生用粘着シート間に侵入した水分を短期間で外部に蒸散することは可能であるが、防水性および機械強度が低下するので好ましくない。
また、本発明の透湿性床養生用粘着シートに使用されるシート基材の耐水度は５０ｃｍ・Ｈ２Ｏ以上であることが好ましい。耐水度が５０ｃｍ・Ｈ２Ｏ未満では、雨水が展張後の透湿性床養生用粘着シートに吹き付けた場合、十分な防水性が得られず、床養生用粘着シートを透過して雨水が床面とシート間に侵入する恐れがあるので好ましくない。
Water vapor permeability of the sheet base material used in the moisture-permeable floor curing pressure-sensitive adhesive sheet of the present invention is preferably 1000~20000g /
When the water vapor transmission rate is less than 1000 g / m 2 · 24 h, the amount of water vapor that permeates the floor curing pressure-sensitive adhesive sheet is small, so that moisture that has entered between the floor surface and the floor curing pressure-sensitive adhesive sheet is evaporated to the outside in a short period of time. In addition, there is a possibility that stains and molds may occur on the floor surface, which is not preferable. In addition, when the water vapor transmission rate exceeds 20000 g / m 2 · 24 h, it is possible to transpire the moisture that has penetrated between the floor surface and the pressure-sensitive adhesive sheet for floor curing to the outside in a short period of time, Since waterproofness and mechanical strength decrease, it is not preferable.
Further, water resistance of the sheet base material used in the moisture-permeable floor curing pressure-sensitive adhesive sheet of the present invention is preferably at 50 cm ·
上記の様なシート基材の一方の面には、粘着剤層が形成されている。粘着剤は、従来公知のものを使用することが可能であるが、床面に確実に密着することが可能な粘着力を持ち、施工後にフィルムを除去する際には粘着剤が床面に残留しない粘着剤を使用しなければならない。このような粘着剤としては、アクリル系粘着剤を例示することができる。 An adhesive layer is formed on one surface of the sheet base as described above. Conventionally known adhesives can be used, but they have an adhesive force that can securely adhere to the floor surface. When removing the film after construction, the adhesive remains on the floor surface. Do not use adhesive. As such an adhesive, an acrylic adhesive can be illustrated.
粘着剤層は、シート基材の一方の面の全面積の３０％以上が非塗布部となるように設けられていれば、粘着剤が塗布される形状は特に限定されない。例えば、シート基材の一方の面に粘着剤の塗布部が格子状や網目状となるように塗布しても良いし、粘着剤の塗布部が千鳥状に点在するように塗布しても良い。さらに、図１に示したように粘着剤の塗布部をシート基材の両側部の長手方向に適宜幅で形成し、かつ、両側部以外はシート基材の長手方向に連続した粘着剤の塗布部と非塗布部を、適宜間隔で交互に形成することが好ましい。
粘着剤の塗布部をシート基材の両側部の長手方向に適宜幅で形成することで、床面および重ね合わせた床養生用粘着シート同士の密着性が良好になり、また、両側部以外はシート基材の長手方向に連続した粘着剤の塗布部と非塗布部を適宜間隔で交互に形成することで、床面へ展張する際に床面とシート間に空気の巻き込みがなくなり、作業性ならびに施工仕上がりが良好であり、床養生用粘着シートの捲れや破れが発生し難いという効果が得られる。
The shape to which the adhesive is applied is not particularly limited as long as 30% or more of the total area of one surface of the sheet base material is the non-applied portion. For example, the application part of the adhesive may be applied to one surface of the sheet base material so as to form a lattice or a mesh, or the application part of the adhesive may be applied in a staggered manner. good. Furthermore, as shown in FIG. 1, the application part of the adhesive is formed with an appropriate width in the longitudinal direction of both sides of the sheet base material, and the adhesive is continuously applied in the longitudinal direction of the sheet base material except for both side parts. It is preferable to form the portions and the non-coated portions alternately at appropriate intervals.
By forming the application part of the adhesive with the appropriate width in the longitudinal direction of both sides of the sheet base material, the adhesion between the floor surface and the laminated adhesive sheet for floor curing is improved, and other than both sides By forming the application part and non-application part of the adhesive that are continuous in the longitudinal direction of the sheet base material alternately at appropriate intervals, there is no air entrainment between the floor and the sheet when it is spread on the floor. In addition, the construction finish is good, and the effect that the floor curing pressure-sensitive adhesive sheet is less likely to be twisted or torn is obtained.
さらに、粘着剤の非塗布部の面積はシート基材の全面積の３０〜７０％であることが好ましく、４０〜６０％であることがより好ましい。
粘着剤の非塗布部の面積が７０％を超えると、床面と透湿性床養生粘着シートとの密着性が低下するので好ましくない。一方、粘着剤の非塗布部の面積が３０％未満になると、床面とシートの密着性は向上するものの、透湿性が低下する恐れがあるので好ましくない。
Furthermore, it is preferable that the area of the non-application part of an adhesive is 30 to 70% of the total area of a sheet base material, and it is more preferable that it is 40 to 60%.
When the area of the non-application part of an adhesive exceeds 70%, since the adhesiveness of a floor surface and a moisture-permeable floor curing adhesive sheet falls, it is unpreferable. On the other hand, if the area of the non-applied part of the pressure-sensitive adhesive is less than 30%, the adhesion between the floor surface and the sheet is improved, but the moisture permeability may be lowered, which is not preferable.
シート基材として、例えば、微多孔性の透湿防水膜の一方の面に通気性補強材を積層してなる透湿防水性シートを使用する場合には、床面に展張した際に補強材が上側になるように粘着剤を塗布することが好ましい。補強材が上側になるように粘着剤を塗布することで、補強材の凹凸が滑り止めの役割を果たし、床面に展張したシート表面が雨水などで濡れている場合でも足下が滑りにくいという効果が得られる。 For example, when using a moisture permeable waterproof sheet in which a breathable reinforcing material is laminated on one surface of a microporous moisture permeable waterproof membrane as the sheet base material, the reinforcing material when expanded on the floor surface It is preferable to apply the pressure-sensitive adhesive so that is on the upper side. By applying adhesive so that the reinforcing material is on the upper side, the unevenness of the reinforcing material plays a role of preventing slipping, and even if the sheet surface spread on the floor is wet with rain water etc., the effect that the feet are difficult to slip Is obtained.
また、本発明の透湿性床養生用粘着シートは、ロール状に巻き取られた状態で提供することができる。その際、シートの繰り出しをスムーズに行うために、シートの粘着剤層側の面に剥離紙を重ね合わせた状態で巻き取ってもかまわない。 Moreover, the adhesive sheet for moisture-permeable floor curing of this invention can be provided in the state wound up by roll shape. At that time, in order to smoothly feed out the sheet, the sheet may be wound in a state where the release paper is overlapped on the surface of the sheet on the pressure-sensitive adhesive layer side.
さらに、本発明の透湿性床面養生用粘着シートは、半透明であることが好ましい。透湿性床面養生用粘着シートが半透明であれば、床面に展張後、シート越しに床面の墨うちなどの表示の位置を容易に確認することができる。シート越しに床面の墨うちなどの位置を確認することが可能であるためには、ＪＩＳ Ｋ ７３６１−１に準拠して測定した全光線透過率が、６０％以上であることが好ましく、７０％以上であることがより好ましい。 Furthermore, the moisture-permeable floor-curing pressure-sensitive adhesive sheet of the present invention is preferably translucent. If the moisture-permeable floor-curing pressure-sensitive adhesive sheet is translucent, after being spread on the floor surface, the position of display such as black ink on the floor surface can be easily confirmed through the sheet. In order to be able to confirm the position of the black ink etc. on the floor through the sheet, the total light transmittance measured in accordance with JIS K 7361-1 is preferably 60% or more, 70 % Or more is more preferable.
以下、本発明を実施例および比較例によって詳細に説明する。なお、得られた床養生用粘着シートの試験方法は以下の通りである。
［水蒸気透過率］ 粘着剤を塗布する前のシート基材の水蒸気透過率を、ＪＩＳ Ｚ ０２０８（カップ法）に準拠して、恒温恒湿装置条件Ｂ（４０℃、９０％ＲＨ）で測定した。
［耐水度］ 粘着剤を塗布する前のシート基材の耐水度を、ＪＩＳ Ｌ １０９２（静水圧法、Ａ法（低水圧法））に準拠して測定した。
Hereinafter, the present invention will be described in detail by way of examples and comparative examples. In addition, the test method of the obtained adhesive sheet for floor curing is as follows.
[Water vapor transmission rate] The water vapor transmission rate of the sheet base material before applying the pressure-sensitive adhesive was measured under a constant temperature and humidity apparatus condition B (40 ° C, 90% RH) in accordance with JIS Z 0208 (cup method). .
[Water resistance] The water resistance of the sheet base material before applying the adhesive was measured in accordance with JIS L 1092 (hydrostatic pressure method, method A (low water pressure method)).
［実施例１］
直鎖状低密度ポリエチレン（密度：０．９１５ｇ／ｃｍ３、ＭＩ：１．５）４５重量％と平均粒径２．０μｍの炭酸カルシウム５５重量％からなる樹脂組成物を、一台の押出機とＴダイを備えた押出し製膜装置を用いてシート状物を形成し、次いで、７０〜８０℃に設定した多段式ロール延伸機により縦一軸方向に３．０倍に延伸して４５μｍ透湿防水膜を得た。こうして得られた透湿防水膜の一方の面に補強材として、割繊維不織布である新日石プラスト（株）製の日石ワリフＨＳ２４（商品名）を１１５℃に加熱したロールで熱圧着して、透湿防水膜と補強材が積層された幅１ｍのシート基材を得た。得られたシート基材を、上記の試験方法にて評価した結果を、表１に示す。
次いで、シート基材の補強材が積層されていない面に両側部の塗布幅が１０ｃｍ、その他の箇所は非塗布部の幅が６ｍｍ、塗布部の幅が４ｍｍとなるように、長手方向に連続してアクリル系粘着剤を塗布して、粘着剤の非塗布部の面積割合が約４８％である、透湿性床面養生用粘着シートを得た。
[Example 1]
A resin composition comprising 45% by weight of linear low-density polyethylene (density: 0.915 g / cm 3 , MI: 1.5) and 55% by weight of calcium carbonate having an average particle size of 2.0 μm was used as one extruder. A sheet-like product is formed using an extrusion film forming apparatus equipped with a T-die, and then stretched 3.0 times in the longitudinal uniaxial direction by a multistage roll stretching machine set at 70 to 80 ° C., and moisture permeability of 45 μm. A waterproof membrane was obtained. One side of the moisture permeable waterproof membrane thus obtained was thermocompression-bonded with a roll heated to 115 ° C. as a reinforcing material, Nisseki Warif HS24 (trade name) manufactured by Nisshi Plast Co., Ltd. Thus, a 1 m wide sheet base material in which the moisture permeable waterproof membrane and the reinforcing material were laminated was obtained. Table 1 shows the results of evaluating the obtained sheet base material by the above test method.
Next, the sheet base material is not laminated on the side where the coating width is 10 cm on both sides, and in other areas, the width of the non-application portion is 6 mm and the width of the application portion is 4 mm. Then, an acrylic pressure-sensitive adhesive was applied to obtain a moisture-permeable floor-curing pressure-sensitive adhesive sheet in which the area ratio of the non-coated portion of the pressure-sensitive adhesive was about 48%.
［比較例１］
表面に凹凸加工を施した厚み６０μｍ、幅１ｍの低密度ポリエチレン製のエンボスシートをシート基材として使用し、その裏面に両側部の塗布幅が１０ｃｍ、その他の箇所は非塗布部の幅が６ｍｍ、塗布部の幅が４ｍｍとなるように、長手方向に連続してアクリル系粘着剤を塗布した。使用したシート基材を、上記の試験方法にて評価した結果を表１に示す。
[Comparative Example 1]
An embossed sheet made of low-density polyethylene with a thickness of 60 μm and a width of 1 m is used as a sheet base material on the surface, the application width on both sides is 10 cm on the back side, and the width of the non-application part is 6 mm in other places. The acrylic pressure-sensitive adhesive was applied continuously in the longitudinal direction so that the width of the application part was 4 mm. Table 1 shows the results of evaluating the used sheet base material by the above test method.
表１からも明らかなように、実施例１および比較例１共に使用したシート基材の耐水度は良好であった。また、展張作業においては、床面とシートおよびシートの重なり部分の密着性も良好で、床面とシート間に空気の巻き込みもなく作業性・施工仕上がり共に良好であった。さらに、床面養生用粘着シートの張り直しが容易に行え、使用後は粘着剤が床面に残ることなく除去することが可能であった。 As is clear from Table 1, the water resistance of the sheet base material used in both Example 1 and Comparative Example 1 was good. Further, in the stretching work, the adhesion between the floor surface and the sheet and the overlapping portion of the sheet was good, and air was not caught between the floor surface and the sheet, and both workability and work finish were good. Furthermore, the adhesive sheet for floor curing can be easily re-stretched, and after use, the adhesive can be removed without remaining on the floor surface.
一方、床面に少量の水が存在する状態で実施例１および比較例１で得られたシートを展張し、２〜３日後に当該部分のシートを剥離して確認したところ、実施例１の通気性床養生用粘着シートを使用した場合には床面とシート間に水は存在せず、床面にシミも発生していなかった。それに対して、比較例１の床養生用粘着シートを使用した場合には、床面とシート間に水は存在しなかったものの床面にシミが確認された。
実施例１の通気性床養生用粘着シートを使用した場合には、シート基材の水蒸気透過率が５０００ｇ／ｍ２・２４ｈであり、床面と床養生用粘着シート間の水分の大部分は床養生用粘着シートを透過して外部に蒸散しシミが発生しなかったのに対し、比較例１の床養生用粘着シートを使用した場合には、シート基材の水蒸気透過率が１６ｇ／ｍ２・２４ｈと小さく床面と床養生用粘着シート間の水分はごく僅かしか床養生用粘着シートを透過できないので、水分の大部分は床材に吸収され、そのためシミが発生したものと考えられる。
なお、実施例１で得られた透湿性床面養生用粘着シートの全光線透過率は７５％であり、床面の墨うちの位置を容易に確認することができた。
On the other hand, when the sheet obtained in Example 1 and Comparative Example 1 was stretched in a state where a small amount of water was present on the floor, the sheet of the part was peeled and confirmed after 2 to 3 days. When the pressure-sensitive adhesive sheet for breathable floor curing was used, there was no water between the floor and the sheet, and no stain was generated on the floor. On the other hand, when the floor curing pressure-sensitive adhesive sheet of Comparative Example 1 was used, although no water was present between the floor and the sheet, spots were confirmed on the floor.
When the pressure-sensitive adhesive sheet for breathable floor curing of Example 1 is used, the water vapor permeability of the sheet base material is 5000 g / m 2 · 24 h, and most of the moisture between the floor surface and the pressure-sensitive adhesive sheet for floor curing is Whereas the floor curing pressure-sensitive adhesive sheet permeated through the floor-curing pressure-sensitive adhesive sheet and transpiration to the outside did not occur, the water vapor permeability of the sheet base material was 16 g / m. Since the water between the floor surface and the adhesive sheet for floor curing can pass through the floor curing adhesive sheet only a little, it can be considered that most of the moisture is absorbed by the flooring material and therefore stains are generated. .
In addition, the total light transmittance of the moisture-permeable floor-curing adhesive sheet obtained in Example 1 was 75%, and the position of the black ink on the floor surface could be easily confirmed.
本発明の通気性床養生用粘着シートを住宅等などの施工時の床面保護に用いることで、作業者の靴に付着した土や泥、部材の破片などのゴミ、雨水などの異物によって床面が汚れたり傷付いたりすることを防止するだけでなく、万が一、床面とシートの間に雨水などが侵入した場合でも、床面とシートの間に水分が短期間で外部に蒸散され、床面にシミやカビの発生を防止することが可能となる。 By using the pressure-sensitive adhesive sheet for breathable floor curing of the present invention to protect the floor surface during construction of a house, etc., the floor is covered with foreign matter such as dirt and dirt adhered to workers' shoes, dirt such as member debris, and rainwater. Not only does it prevent the surface from getting dirty or scratched, but in the unlikely event that rainwater enters between the floor and the sheet, moisture is transpired between the floor and the sheet in a short period of time. It becomes possible to prevent the generation of stains and mold on the floor surface.
１ 透湿性床面養生用粘着シート
２ シートの側部
３ 粘着剤の非塗布部
４ 粘着剤の塗布部
DESCRIPTION OF SYMBOLS 1 Moisture-permeable floor-curing
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| JP2009007896A (en) * | 2007-06-29 | 2009-01-15 | Okura Ind Co Ltd | Sheet for curing permeable floor |
| JP2009167368A (en) * | 2008-01-21 | 2009-07-30 | Lintec Corp | Adhesive sheet |
| JP2009269231A (en) * | 2008-05-01 | 2009-11-19 | Okura Ind Co Ltd | Moisture-permeable waterproof sheet for building material |
| JP2012505930A (en) * | 2008-10-16 | 2012-03-08 | イーマン８ ピーティワイ リミテッド | Tape material and roll having pressure sensitive adhesive |
| JP2014141047A (en) * | 2013-01-25 | 2014-08-07 | Seiren Co Ltd | Moisture permeability curing sheet |
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| US11542714B2 (en) | 2014-12-08 | 2023-01-03 | Zephyros, Inc. | Vertically lapped fibrous flooring |
| US10460715B2 (en) | 2015-01-12 | 2019-10-29 | Zephyros, Inc. | Acoustic floor underlay system |
| US10755686B2 (en) | 2015-01-20 | 2020-08-25 | Zephyros, Inc. | Aluminized faced nonwoven materials |
| US11541626B2 (en) | 2015-05-20 | 2023-01-03 | Zephyros, Inc. | Multi-impedance composite |
| JP2017179297A (en) * | 2016-03-31 | 2017-10-05 | 株式会社寺岡製作所 | Adhesive tape and manufacturing method therefor |
| JP2017193102A (en) * | 2016-04-20 | 2017-10-26 | フクビ化学工業株式会社 | Moisture-permeable water-proof sheet for building and manufacturing method therefor |
| GB2558603B (en) * | 2017-01-09 | 2021-09-22 | Trade Fabrication Systems Ltd | Film application method and construction panel |
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