JP2002309727A - Lining sheet for coating membrane waterproof repair work and waterproof construction method using it - Google Patents
Lining sheet for coating membrane waterproof repair work and waterproof construction method using itInfo
- Publication number
- JP2002309727A JP2002309727A JP2001111628A JP2001111628A JP2002309727A JP 2002309727 A JP2002309727 A JP 2002309727A JP 2001111628 A JP2001111628 A JP 2001111628A JP 2001111628 A JP2001111628 A JP 2001111628A JP 2002309727 A JP2002309727 A JP 2002309727A
- Authority
- JP
- Japan
- Prior art keywords
- layer
- waterproof
- sheet
- thickness
- construction method
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000011248 coating agent Substances 0.000 title claims abstract description 20
- 238000000576 coating method Methods 0.000 title claims abstract description 20
- 238000010276 construction Methods 0.000 title claims abstract description 8
- 239000012528 membrane Substances 0.000 title abstract 2
- 239000004745 nonwoven fabric Substances 0.000 claims abstract description 25
- 229920003002 synthetic resin Polymers 0.000 claims abstract description 13
- 239000000057 synthetic resin Substances 0.000 claims abstract description 13
- 229920001169 thermoplastic Polymers 0.000 claims abstract description 11
- 239000004416 thermosoftening plastic Substances 0.000 claims abstract description 11
- 239000006260 foam Substances 0.000 claims abstract description 4
- 238000004078 waterproofing Methods 0.000 claims description 27
- 239000000835 fiber Substances 0.000 claims description 19
- 230000003014 reinforcing effect Effects 0.000 claims description 11
- 238000009418 renovation Methods 0.000 claims description 7
- 239000003973 paint Substances 0.000 claims description 6
- 238000010030 laminating Methods 0.000 abstract description 4
- 230000002787 reinforcement Effects 0.000 abstract description 2
- 239000010410 layer Substances 0.000 description 69
- 238000000034 method Methods 0.000 description 19
- -1 polyethylene Polymers 0.000 description 16
- 239000000463 material Substances 0.000 description 11
- 239000004698 Polyethylene Substances 0.000 description 9
- 229920000573 polyethylene Polymers 0.000 description 9
- 239000003795 chemical substances by application Substances 0.000 description 8
- 230000000052 comparative effect Effects 0.000 description 8
- 239000011247 coating layer Substances 0.000 description 7
- 229920000728 polyester Polymers 0.000 description 6
- 229920002994 synthetic fiber Polymers 0.000 description 5
- 239000012209 synthetic fiber Substances 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 239000004952 Polyamide Substances 0.000 description 3
- 239000004743 Polypropylene Substances 0.000 description 3
- 229920001577 copolymer Polymers 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 229920002647 polyamide Polymers 0.000 description 3
- 229920000098 polyolefin Polymers 0.000 description 3
- 229920001155 polypropylene Polymers 0.000 description 3
- QPFMBZIOSGYJDE-UHFFFAOYSA-N 1,1,2,2-tetrachloroethane Chemical compound ClC(Cl)C(Cl)Cl QPFMBZIOSGYJDE-UHFFFAOYSA-N 0.000 description 2
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 230000032798 delamination Effects 0.000 description 2
- QQVIHTHCMHWDBS-UHFFFAOYSA-N isophthalic acid Chemical compound OC(=O)C1=CC=CC(C(O)=O)=C1 QQVIHTHCMHWDBS-UHFFFAOYSA-N 0.000 description 2
- 238000003475 lamination Methods 0.000 description 2
- 229920000139 polyethylene terephthalate Polymers 0.000 description 2
- 239000005020 polyethylene terephthalate Substances 0.000 description 2
- 238000004080 punching Methods 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 229920002292 Nylon 6 Polymers 0.000 description 1
- 229920002302 Nylon 6,6 Polymers 0.000 description 1
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 1
- 239000006096 absorbing agent Substances 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 239000003963 antioxidant agent Substances 0.000 description 1
- 238000003490 calendering Methods 0.000 description 1
- 238000009960 carding Methods 0.000 description 1
- 238000004040 coloring Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000009820 dry lamination Methods 0.000 description 1
- 238000004049 embossing Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- 238000007646 gravure printing Methods 0.000 description 1
- 229920001903 high density polyethylene Polymers 0.000 description 1
- 239000004700 high-density polyethylene Substances 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 239000004611 light stabiliser Substances 0.000 description 1
- 229920000092 linear low density polyethylene Polymers 0.000 description 1
- 239000004707 linear low-density polyethylene Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 229920001684 low density polyethylene Polymers 0.000 description 1
- 239000004702 low-density polyethylene Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000006224 matting agent Substances 0.000 description 1
- 229920001179 medium density polyethylene Polymers 0.000 description 1
- 239000004701 medium-density polyethylene Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000011259 mixed solution Substances 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 229920001707 polybutylene terephthalate Polymers 0.000 description 1
- 229920002215 polytrimethylene terephthalate Polymers 0.000 description 1
- 238000012805 post-processing Methods 0.000 description 1
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000001878 scanning electron micrograph Methods 0.000 description 1
- 229920001897 terpolymer Polymers 0.000 description 1
- 229920005992 thermoplastic resin Polymers 0.000 description 1
- 239000002341 toxic gas Substances 0.000 description 1
- 239000002759 woven fabric Substances 0.000 description 1
- 239000004711 α-olefin Substances 0.000 description 1
Landscapes
- Nonwoven Fabrics (AREA)
- Laminated Bodies (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、屋上防水等の改修
工事における既存防水層の撤去を不要にした下張りシー
トであり、さらに詳しくは、機械固定式下張りシートお
よびそれを用いた防水工法に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an underlay sheet which does not require removal of an existing waterproof layer in repair work such as roof waterproofing, and more particularly to a mechanically fixed underlay sheet and a waterproofing method using the same. It is.
【０００２】[0002]
【従来の技術】従来、屋上防水等の改修工事では既存防
水層を撤去し、新しい下地を調整した上で防水層を形成
していた。そのため、既存防水層の撤去や新たな下地調
整に大幅な工事費用と時間がかかっていた。また、既存
防水層を撤去するため改修工事中に新たな漏水を発生し
やすかった。既存防水層撤去により廃材が発生するた
め、環境面からも好ましくないといった問題があった。2. Description of the Related Art Conventionally, in a repair work such as rooftop waterproofing, an existing waterproofing layer has been removed and a new underlayer has been adjusted to form a waterproofing layer. For this reason, removal of the existing waterproof layer and adjustment of the new groundwork required a great deal of construction cost and time. In addition, new water leakage was likely to occur during the renovation work to remove the existing waterproof layer. Removal of the existing waterproof layer generates waste material, which is not environmentally friendly.
【０００３】[0003]
【発明が解決しようとする課題】本発明の課題は、上記
従来の問題を解決し、屋上等の既存防水層を撤去せずに
改修工事を行うものであり、下地調整費を大幅に削減
し、改修工事中に新たな漏水を発生させず、下地の凹凸
がそのまま防水層に反映されることがなく、さらに風圧
による破損や廃棄時の焼却処分に問題がない、環境に優
しい塗膜防水改修工事用下張りシートおよびそれを用い
た防水工法を提供するものである。SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned conventional problems and to carry out renovation work without removing an existing waterproof layer such as a rooftop. -Environmentally-friendly waterproof coating renovation, no new water leakage occurs during renovation work, no unevenness of the base is reflected on the waterproof layer as it is, and there is no problem with damage due to wind pressure or incineration at the time of disposal An underlay sheet for construction and a waterproofing method using the same are provided.
【０００４】[0004]
【課題を解決するための手段】本発明は、上記課題を解
決するために下記の手段をとる。すなわち、（１）目付
１０〜１５０ｇ／ｍ2の不織布層と、引張強さ３００Ｎ
／５ｃｍ以上で引裂強さ２０Ｎ以上の補強層と、厚さ
０.５〜５.０ｍｍの発泡シート層が、それぞれ厚さ１０
〜３００μｍの熱可塑性合成樹脂フィルム層を介して積
層一体化されてなることを特徴とする塗膜防水改修工事
用下張りシート、（２）不織布層が繊度０.５〜３０ｄ
ｔｅｘの繊維から構成されていることを特徴とする前記
（１）に記載の塗膜防水改修工事用下張りシート、
（３）前記（１）〜（２）に記載の塗膜防水改修工事用
下張りシートを下地にアンカーピンにて機械的に固定
し、その上に塗膜防水層を形成することを特徴とする防
水工法、である。The present invention employs the following means in order to solve the above-mentioned problems. That is, (1) a nonwoven fabric layer having a basis weight of 10 to 150 g / m 2 and a tensile strength of 300 N
/ 5 cm or more of a reinforcing layer having a tear strength of 20 N or more, and a foamed sheet layer having a thickness of 0.5 to 5.0 mm each having a thickness of 10
An underlay sheet for waterproof coating repair work, characterized by being laminated and integrated via a thermoplastic synthetic resin film layer of ~ 300 µm, (2) a nonwoven fabric layer having a fineness of 0.5-30 d
(1) The undercoat sheet for repairing waterproof coating film according to the above (1), which is composed of tex fibers.
(3) The undercoat sheet for repairing paint film waterproofing described in (1) and (2) above is mechanically fixed to an underlayer with an anchor pin, and a waterproof paint film layer is formed thereon. Waterproofing method.
【０００５】[0005]
【発明の実施の形態】以下に本発明を詳細に説明する。
まず、本発明の塗膜防水改修工事用下張りシートは、目
付が１０〜１５０ｇ／ｍ2の不織布層と、引張強さが３
００Ｎ／５ｃｍ以上で、かつ引裂強さが２０Ｎ以上の補
強層と、厚さ０.５〜５.０ｍｍの発泡シート層が、それ
ぞれ厚さ１０〜３００μｍの熱可塑性合成樹脂フィルム
層を介して積層一体化されてなるものである。したがっ
て、不織布層と補強層とが熱可塑性合成樹脂フィルム層
を介して積層され、さらに該補強層と発泡シート層が熱
可塑性合成樹脂フィルム層を介して積層されており、少
なくとも５層の積層体である。DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail.
First, the undercoat sheet for repairing paint film waterproofing of the present invention has a nonwoven fabric layer having a basis weight of 10 to 150 g / m 2 and a tensile strength of 3 g / m 2.
A reinforcing layer having a thickness of at least 00 N / 5 cm and a tear strength of at least 20 N and a foamed sheet layer having a thickness of 0.5 to 5.0 mm are laminated via a thermoplastic synthetic resin film layer having a thickness of 10 to 300 μm. They are integrated. Therefore, the nonwoven fabric layer and the reinforcing layer are laminated via the thermoplastic synthetic resin film layer, and the reinforcing layer and the foam sheet layer are further laminated via the thermoplastic synthetic resin film layer. It is.
【０００６】不織布層は、目付が１０〜１５０ｇ／ｍ2
である。１０ｇ／ｍ2未満になると塗膜防水剤との接着
性が劣るようになり、１５０ｇ／ｍ2を超えると塗膜防
水剤が浸透してしまい、均一な塗膜防水層を形成し難く
なる。また、均一な塗膜防水層を得ようとすると、塗膜
防水剤の塗布量を増やして施工し、過剰品質の防水層を
形成しなければならなくなる。このため施工性が著しく
悪くなり、コストを大幅に増加させるといった問題が生
じるので好ましくない。The nonwoven fabric layer has a basis weight of 10 to 150 g / m 2.
It is. If it is less than 10 g / m 2 , the adhesion to the coating film waterproofing agent will be poor, and if it exceeds 150 g / m 2 , the coating film waterproofing agent will penetrate, making it difficult to form a uniform coating film waterproofing layer. Further, in order to obtain a uniform coating waterproof layer, it is necessary to increase the application amount of the coating waterproofing agent and to perform the application to form an excessive quality waterproof layer. For this reason, the workability is remarkably deteriorated, and a problem that the cost is significantly increased occurs, which is not preferable.
【０００７】補強層は、引張強さが３００Ｎ／５ｃｍ以
上で、かつ引裂強さが２０Ｎ以上である。より好ましく
は、引張強さが４００Ｎ／５ｃｍ以上で、かつ引裂強さ
が３０Ｎ以上である。引張強さが３００Ｎ／５ｃｍ未
満、引裂強さが２０Ｎ未満になると、機械固定式下張り
シートが風圧によってピン固定部分が破損する恐れがあ
るので好ましくない。また、補強層はポリエチレンやポ
リプロピレン等のポリオレフィン系、ポリエステル系、
ポリアミド系、あるいはこれら合成樹脂の混合体もしく
は共重合体等からなる織編物もしくは不織布を使用する
ことができ、廃棄時に焼却処分が可能なものであれば、
これらに何ら限定されるものではない。The reinforcing layer has a tensile strength of 300 N / 5 cm or more and a tear strength of 20 N or more. More preferably, the tensile strength is 400 N / 5 cm or more, and the tear strength is 30 N or more. If the tensile strength is less than 300 N / 5 cm and the tear strength is less than 20 N, the pinned portion of the mechanically fixed underlay sheet may be damaged by wind pressure, which is not preferable. In addition, the reinforcing layer is a polyolefin based on polyethylene or polypropylene, a polyester based,
A woven or knitted or non-woven fabric made of a polyamide, or a mixture or copolymer of these synthetic resins can be used, provided that it can be incinerated at the time of disposal.
It is not limited to these.
【０００８】発泡シート層は、厚さが０.５〜５.０ｍｍ
であり、好ましくは１.０〜３.０ｍｍである。０.５ｍ
ｍ未満になると下地の凹凸が吸収できず、塗膜防水層の
仕上りの外観が非常に悪くなったり、膜厚の不均一が発
生するといった問題が発生するので好ましくない。５.
０ｍｍを超えると下張りシートの剛性が増加し、下地へ
の追従性が悪くなったり、隣接した下張りシートとのラ
ップ部分の密着性が悪くなり施工性が低下するといった
問題やコスト高を招くので好ましくない。また、発泡シ
ート層は、発泡可能かつ廃棄時に焼却処分が可能な素材
であれば、何ら限定されるものではない。[0008] The foamed sheet layer has a thickness of 0.5 to 5.0 mm.
And preferably 1.0 to 3.0 mm. 0.5m
If it is less than m, the unevenness of the underlayer cannot be absorbed, and the appearance of the finish of the coating film waterproof layer becomes extremely poor and the film thickness becomes nonuniform. 5.
When the thickness is more than 0 mm, the rigidity of the underlay sheet is increased, and the followability to the base material is deteriorated, or the adhesiveness of the lap portion with the adjacent underlay sheet is deteriorated, and the problem that the workability is deteriorated and the cost is increased. Absent. The foamed sheet layer is not particularly limited as long as it is a material that can be foamed and can be incinerated at the time of disposal.
【０００９】不織布層と補強層と発泡シート層を積層一
体化するための熱可塑性合成樹脂フィルム層は、厚さが
１０〜３００μｍである。１０μｍ未満になると接着力
が弱くなって層間剥離しやすくなるので好ましくない。
３００μｍを超えると下張り緩衝材の剛性が増加し、下
地への追従性が悪くなったり、隣接した下張りシートと
のラップ部分の密着性が悪くなり施工性が低下するので
好ましくない。The thickness of the thermoplastic synthetic resin film layer for laminating and integrating the nonwoven fabric layer, the reinforcing layer and the foamed sheet layer is 10 to 300 μm. If the thickness is less than 10 μm, the adhesive strength is weakened and delamination tends to occur, which is not preferable.
If the thickness exceeds 300 μm, the rigidity of the underlay cushioning material increases, and the followability to the base material is deteriorated, and the adhesion of the lap portion to the adjacent underlay sheet is deteriorated, and the workability is undesirably reduced.
【００１０】熱可塑性合成樹脂フィルムは、ポリエチレ
ンやポリプロピレン等のポリオレフィン系、ポリエステ
ル系、ポリアミド系、あるいはこれら合成樹脂の混合体
もしくは共重合体等からなるものを使用することがで
き、廃棄時に焼却処分が可能な素材であれば、これらに
何ら限定されるものではない。The thermoplastic synthetic resin film may be made of a polyolefin, such as polyethylene or polypropylene, a polyester, a polyamide, or a mixture or copolymer of these synthetic resins. However, the material is not limited to these as long as it is possible.
【００１１】不織布層と補強層と発泡シート層を積層一
体化する方法としては、熱可塑性合成樹脂フィルムの押
し出しラミネートやドライラミネート等の従来公知のラ
ミネート法によって積層一体化すれば良く、これらに何
ら限定されるものではない。As a method of laminating and integrating the nonwoven fabric layer, the reinforcing layer and the foamed sheet layer, it is sufficient to laminate and integrate by a conventionally known laminating method such as extrusion lamination or dry lamination of a thermoplastic synthetic resin film. It is not limited.
【００１２】不織布層は、繊度が０.５〜３０ｄｔｅｘ
の繊維から構成されている。繊度が０.５ｄｔｅｘ未満
になると耐摩耗性が劣り、作業者の靴や塗膜防水剤の塗
布用ホース等との摩擦によって表面が毛羽立ち、均一な
塗膜防水層を形成できないといった問題が生じるので好
ましくない。３０ｄｔｅｘを超えると熱可塑性合成樹脂
フィルム層との接着力が弱くなって層間剥離しやすくな
るので好ましくない。また、均一な塗膜防水層を得よう
とすると、塗膜防水剤の塗布量を増やして施工し、過剰
品質の防水層を形成しなければならなくなる。このため
施工性を著しく害し、コストを大幅に増加させるといっ
た問題が生じるので好ましくない。The nonwoven fabric layer has a fineness of 0.5 to 30 dtex.
It is composed of fibers. If the fineness is less than 0.5 dtex, the abrasion resistance is inferior, and the surface of the worker becomes fuzzy due to friction with a worker's shoes or a hose for applying a coating film waterproofing agent. Not preferred. If it exceeds 30 dtex, the adhesive strength to the thermoplastic synthetic resin film layer is weakened, and delamination tends to occur, which is not preferable. Further, in order to obtain a uniform coating waterproof layer, it is necessary to increase the application amount of the coating waterproofing agent and to perform the application to form an excessive quality waterproof layer. For this reason, the workability is significantly impaired, and a problem that the cost is significantly increased occurs, which is not preferable.
【００１３】不織布層の構成繊維は長繊維もしくは短繊
維のどちらでも良いが、耐摩耗性や力学的特性の観点か
ら長繊維の方が好ましい。また、不織布の製造法につい
ても何ら限定されるものではない。例えば長繊維不織布
であれば、スパンボンド法やメルトブロー法等が挙げら
れ、短繊維不織布であれば、カーディング法やエアレイ
法等が挙げられる。さらに、ニードルパンチ加工やウォ
ーターパンチ加工、カレンダー加工などの後加工を行っ
てもよい。The fibers constituting the nonwoven fabric layer may be either long fibers or short fibers, but long fibers are more preferable from the viewpoint of abrasion resistance and mechanical properties. Further, the method for producing the nonwoven fabric is not limited at all. For example, a long-fiber nonwoven fabric includes a spunbond method and a melt-blow method, and a short-fiber nonwoven fabric includes a carding method and an air-lay method. Further, post-processing such as needle punching, water punching, and calendaring may be performed.
【００１４】不織布層を構成する繊維の素材は、熱可塑
性樹脂からなる合成繊維が好ましいが、必要に応じて天
然繊維や再生繊維、半合成繊維等を混綿あるいは混繊し
てもかまわない。また、合成繊維についても繊維形成能
を有するものであれば何ら限定されるものではない。例
えば、ポリエチレンテレフタレート、ポリトリメチレン
テレフタレート、ポリブチレンテレフタレート、イソフ
タル酸を共重合した低融点ポリエステル等のポリエステ
ル類、ポリプロピレン、高密度ポリエチレン、中密度ポ
リエチレン、低密度ポリエチレン、直鎖状低密度ポリエ
チレン、プロピレンと他のα−オレフィンとの二〜三元
共重合体等のポリオレフィン類、ナイロン６、ナイロン
６６等のポリアミド類、もしくはこれらの混合物、共重
合体等を用いることができる。また、単一成分系の合成
繊維に何ら限定されるものではなく、芯鞘型や偏心芯鞘
型、並列型、海島型等の多成分系であってもよい。さら
に、繊維断面についても何ら限定されるものではない。
必要に応じて、例えば艶消し剤や顔料、酸化防止剤、紫
外線吸収剤、光安定剤、難燃剤等の各種添加剤を併用し
てもよい。The material of the fibers constituting the nonwoven fabric layer is preferably synthetic fibers made of a thermoplastic resin, but natural fibers, recycled fibers, semi-synthetic fibers and the like may be mixed or mixed as required. Further, synthetic fibers are not particularly limited as long as they have a fiber forming ability. For example, polyethylene terephthalate, polytrimethylene terephthalate, polybutylene terephthalate, polyesters such as low melting point polyester copolymerized with isophthalic acid, polypropylene, high density polyethylene, medium density polyethylene, low density polyethylene, linear low density polyethylene, propylene And polyolefins such as di- and terpolymers with α-olefins, polyamides such as nylon 6 and nylon 66, or mixtures and copolymers thereof. The synthetic fiber is not limited to a single-component synthetic fiber, and may be a multi-component type such as a core-sheath type, an eccentric core-sheath type, a side-by-side type, and a sea-island type. Further, the fiber cross section is not limited at all.
If necessary, various additives such as matting agents, pigments, antioxidants, ultraviolet absorbers, light stabilizers, and flame retardants may be used in combination.
【００１５】また不織布層は、太陽光の反射によって作
業者が目を傷めるのを防ぐために、グラビア印刷による
着色加工等を行ってもよい。The non-woven fabric layer may be subjected to a coloring process by gravure printing or the like in order to prevent workers from damaging their eyes due to the reflection of sunlight.
【００１６】本発明の防水工法は、本発明の下張りシー
トを下地に敷設し、アンカーピンや釘、ホッチキス針と
いったもので機械固定した後、その上に塗膜防水層を形
成することを特徴とするものである。塗膜防水剤として
は、ウレタン系やポリエステル系等の防水剤が挙げられ
るが、所望の防水層を形成できる性能を持ったものであ
れば、これらに何ら限定されるものではない。また、塗
膜防水層の厚さは施工後の使用方法、例えば歩行、非歩
行等のような要求される性能によって決定されるもので
あるが、防水性能およびコストの面から一般的には２〜
３ｍｍ程度である。The waterproofing method of the present invention is characterized in that the underlay sheet of the present invention is laid on a base, mechanically fixed with an anchor pin, a nail, a stapler or the like, and then a waterproof coating layer is formed thereon. Is what you do. Examples of the coating film waterproofing agent include urethane-based and polyester-based waterproofing agents, but are not limited to these as long as they have a performance capable of forming a desired waterproofing layer. The thickness of the waterproof coating layer is determined by the method of use after construction, for example, required performance such as walking, non-walking, and the like. ~
It is about 3 mm.
【００１７】[0017]
【実施例】以下、実施例および比較例によって本発明を
さらに具体的に説明するが、本発明はこれらに何ら限定
されるものではない。なお、本発明の実施例および比較
例で用いた評価方法は下記の通りである。 （１）ポリエステルの極限粘度［ｄｌ／ｇ］ フェノールとテトラクロロエタン（６：４質量比）混合
溶液を溶媒として、溶媒２５ｍｌに試料０.１ｇを溶解
し、温度３０℃の条件で常法によって測定した。 （２）繊度［ｄｔｅｘ］ 走査型電子顕微鏡写真を用いて、繊維径をｎ＝２０で測
定し、密度補正を行って求めた。 （３）目付［ｇ／ｍ2］ ＪＩＳ Ｌ １９０６ ４.２（単位面積当たりの質量）に
準拠して測定した。The present invention will be described in more detail with reference to the following examples and comparative examples, but the present invention is not limited to these examples. The evaluation methods used in Examples and Comparative Examples of the present invention are as follows. (1) Intrinsic viscosity of polyester [dl / g] Using a mixed solution of phenol and tetrachloroethane (6: 4 mass ratio) as a solvent, dissolve 0.1 g of a sample in 25 ml of the solvent, and measure by a conventional method at a temperature of 30 ° C. did. (2) Fineness [dtex] Using a scanning electron micrograph, the fiber diameter was measured at n = 20 and the density was corrected. (3) Weight [g / m 2 ] Measured in accordance with JIS L 1906 4.2 (mass per unit area).
【００１８】（４）厚さ［ｍｍ］ ＪＩＳ Ｌ １９０６ ４.１（厚さ）に準拠して測定し
た。 （５）引張強さ［Ｎ／５ｃｍ］ ＪＩＳ Ｌ １０９６ ６.１２（引張強さ及び伸び率）の
Ａ法（ストリップ法）に準拠して測定した。 （６）引裂強さ［Ｎ］ ＪＩＳ Ｌ １０９６ ６.１５（引裂強さ）のＡ−１法
（シングルタング法）に準拠して測定した。(4) Thickness [mm] Measured according to JIS L 1906 4.1 (thickness). (5) Tensile strength [N / 5 cm] Measured according to the method A (strip method) of JIS L 1096 6.12 (tensile strength and elongation). (6) Tear strength [N] Measured according to the A-1 method (single tongue method) of JIS L 1096 6.15 (tear strength).
【００１９】実施例１ 極限粘度が０.６３のポリエチレンテレフタレートをス
パンボンド法によって紡糸、冷却、延伸、開繊、捕集
し、繊度２.２ｄｔｅｘの長繊維からなる目付７０ｇ／
ｍ2の不織ウェブを製造し、これをエンボスロールとフ
ラットロールからなる熱圧着装置を用いて部分的に熱圧
着し、厚さ０.４ｍｍの長繊維不織布を製造した。この
長繊維不織布からなる不織布層と、引張強さ４４３Ｎ／
５ｃｍ、引裂強さ３４Ｎのポリエチレンスプリットヤー
ン織布からなる補強層と、厚さ１.０ｍｍの発泡ポリエ
チレンシート層とを用意し、各層間にポリエチレンフィ
ルムを３０μｍの厚さになるように押し出し機より押し
出し、各層を積層し、プレスロールを用いて汎用のサン
ドラミ法によって積層一体化して下張りシートを製造し
た。そして、この下張りシートを古い防水層にそのまま
敷設し、アンカーピンにより機械固定した後、その上に
液状樹脂である超速硬化ウレタンを２.０ｋｇ／ｍ2の付
与量になるように吹き付け、不織布層に含浸させて塗膜
防水層を形成した。本実施例では、下張りシートの施工
性および風圧による損傷抵抗性、並びに塗膜防水層の均
一性など、すべてにおいて良好であった。また、不要と
なった下張りシートの焼却処分時に、有毒なガスが発生
するようなことはなかった。Example 1 A polyethylene terephthalate having an intrinsic viscosity of 0.63 was spun, cooled, drawn, opened and collected by a spun bond method, and the basis weight of a long fiber having a fineness of 2.2 dtex was 70 g /.
to produce a nonwoven web of m 2, which using heat bonding apparatus comprising a embossing roll and a flat roll partially thermocompression bonding to produce a long fiber nonwoven fabric having a thickness of 0.4 mm. The nonwoven fabric layer made of the long-fiber nonwoven fabric has a tensile strength of 443 N /
A reinforcing layer made of a 5 cm, 34 N tear-resistant polyethylene split yarn woven fabric and a foamed polyethylene sheet layer having a thickness of 1.0 mm are prepared, and a polyethylene film is extruded between the respective layers so as to have a thickness of 30 μm. The layers were extruded, the respective layers were laminated, and laminated and integrated by a general-purpose sand lamination method using a press roll to produce a sublayer sheet. Then, the underlay sheet is laid on the old waterproof layer as it is, mechanically fixed with an anchor pin, and then super-fast curing urethane which is a liquid resin is sprayed thereon so that the applied amount becomes 2.0 kg / m 2. To form a coating waterproof layer. In this example, the workability of the underlayer sheet, the resistance to damage due to wind pressure, and the uniformity of the waterproof coating layer were all good. In addition, no toxic gas was generated at the time of incineration of the unnecessary underlining sheet.
【００２０】実施例２ 厚さ２.０ｍｍの発泡ポリエチレンシートを発泡シート
層に用いたこと以外は、実施例１と同様にして下張りシ
ートを製造し、塗膜防水層を形成した。結果は実施例１
と同様、非常に良好であった。Example 2 A subbing sheet was produced in the same manner as in Example 1 except that a foamed polyethylene sheet having a thickness of 2.0 mm was used for the foamed sheet layer, and a waterproof coating layer was formed. Results are in Example 1.
Very good as well.
【００２１】比較例１ 繊度２.２ｄｔｅｘ、目付１６０ｇ／ｍ2、厚さ１.６ｍ
ｍの長繊維不織布を不織布層に用いたこと以外は、実施
例１と同様にして下張りシートを製造し、塗膜防水層を
形成した。しかし、塗膜防水剤が不織布層内に浸透して
しまい、均一な塗膜防水層を形成することができなかっ
た。Comparative Example 1 Fineness: 2.2 dtex, weight: 160 g / m 2 , thickness: 1.6 m
A subbing sheet was produced in the same manner as in Example 1 except that m long-fiber nonwoven fabric was used for the nonwoven fabric layer, and a waterproof coating layer was formed. However, the coating film waterproofing agent permeated into the nonwoven fabric layer, and a uniform coating film waterproofing layer could not be formed.
【００２２】比較例２ 引張強さ２９２Ｎ／５ｃｍ、引裂強さ１８Ｎのポリエチ
レンスプリットヤーン織布を補強層に用いたこと以外
は、実施例１と同様にして下張りシートを製造した。し
かし、下張りシートが風圧でピン固定部分が破損してし
まう問題が発生した。Comparative Example 2 A base sheet was produced in the same manner as in Example 1 except that a woven polyethylene split yarn having a tensile strength of 292 N / 5 cm and a tear strength of 18 N was used for the reinforcing layer. However, there has been a problem that the pin fixing portion of the underlay sheet is damaged by wind pressure.
【００２３】比較例３ 厚さ５.５ｍｍの発泡ポリエチレンシートを発泡シート
層に用いたこと以外は、実施例１と同様にして下張り緩
衝材を製造した。しかし、下張りシートの剛性が高すぎ
て、隣接した下張りシートとのラップ部分の密着性が悪
くなり非常に施工しづらい問題が発生した。Comparative Example 3 An underlay cushioning material was produced in the same manner as in Example 1 except that a foamed polyethylene sheet having a thickness of 5.5 mm was used for the foamed sheet layer. However, the rigidity of the underlay sheet is too high, and the adhesiveness of the lap portion with the adjacent underlay sheet is deteriorated, which causes a problem that it is very difficult to perform the work.
【００２４】比較例４ 各層間に押し出すポリエチレンフィルムの厚さを３１０
μｍとしたこと以外は、実施例１と同様にして下張り緩
衝材を製造した。しかし、比較例３と同様に下張り緩衝
材の剛性が高すぎて下地への追従性が悪くなり、非常に
施工しづらい問題が発生した。Comparative Example 4 The thickness of the polyethylene film extruded between the layers was 310.
A subbing cushioning material was manufactured in the same manner as in Example 1 except that the thickness was set to μm. However, as in Comparative Example 3, the rigidity of the underlay cushioning material was too high, and the ability to follow the base material was poor, resulting in a problem that construction was extremely difficult.
【００２５】以上のように、実施例１および２はいずれ
も、下張りシート及び下張り緩衝材として、施工性や風
圧による損傷抵抗性、塗膜防水層の均一性など、すべて
において良好であった。これに対し、比較例１〜４はい
ずれも、下張りシートの施工性あるいは風圧による損傷
抵抗性、また塗膜防水層の均一性のいずれかに劣るもの
であった。As described above, Examples 1 and 2 were all satisfactory as the underlayer sheet and the underlayer cushioning material in terms of workability, resistance to damage by wind pressure, uniformity of the waterproof coating layer, and the like. On the other hand, all of Comparative Examples 1 to 4 were inferior in any of the workability of the underlay sheet, the resistance to damage due to wind pressure, and the uniformity of the waterproof coating layer.
【００２６】[0026]
【発明の効果】本発明によれば、屋上防水等の改修工事
において、既存防水層の撤去による廃材の発生がなく、
改修工事中に新たな漏水を発生させない、下地の凹凸が
そのまま防水層に反映されることがない、さらに風圧に
よる破損や廃棄時の焼却処分に問題がないなど環境にも
優しい塗膜防水改修工事用機械固定式下張りシートおよ
びそれを用いた防水工法を提供することができる。According to the present invention, in repair work such as rooftop waterproofing, no waste material is generated due to removal of the existing waterproofing layer,
Environmentally friendly paint film waterproofing renovation work, which does not cause new water leakage during renovation work, the unevenness of the groundwork is not reflected on the waterproof layer as it is, and there is no problem due to wind pressure damage or incineration disposal at the time of disposal And a waterproofing method using the same.
【図１】本発明の下張りシートの模式的断面図である。FIG. 1 is a schematic sectional view of an underlay sheet of the present invention.
１ … 不織布層 ２ … 補強層 ３ … 発泡シート層 ４ … 熱可塑性合成樹脂フィルム層 DESCRIPTION OF SYMBOLS 1 ... Nonwoven fabric layer 2 ... Reinforcement layer 3 ... Foam sheet layer 4 ... Thermoplastic synthetic resin film layer
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.7 識別記号 ＦＩ テーマコート゛(参考） Ｄ０４Ｈ 1/42 Ｄ０４Ｈ 1/42 Ｔ Ｅ０４Ｄ 5/10 Ｅ０４Ｄ 5/10 Ｅ (72)発明者 福士 隆夫 東京都中央区日本橋堀留町二丁目３番３号 新興産業株式会社内 (72)発明者 冨岡 賢一 東京都中央区日本橋堀留町二丁目３番３号 新興産業株式会社内 Ｆターム(参考） 4F100 AK01B AK01D AK04 AK42 AR00C BA05 BA07 BA10A BA10E DG15A DJ01E EH23 EJ19 GB07 JB16B JB16D JD05 JK02C JK03C JK20 JL02 YY00A YY00B YY00C YY00D YY00E 4L047 AA14 AA21 AA23 AA28 BA03 BA04 BA23 CA06 CA07 CA19 CB10 CC10 ──────────────────────────────────────────────────の Continued on the front page (51) Int.Cl. 7 Identification symbol FI Theme coat ゛ (Reference) D04H 1/42 D04H 1/42 T E04D 5/10 E04D 5/10 E (72) Inventor Takao Fukushi Tokyo 2-3-3 Nihonbashi-Horidomecho, Chuo-ku, Shinko Sangyo Co., Ltd. (72) Inventor Kenichi Tomioka 2-3-3, Nihonbashi-Horidomecho, Chuo-ku, Tokyo Shinko Sangyo Co., Ltd. F-term (reference) 4F100 AK01B AK01D AK04 AK42 AR00C BA05 BA07 BA10A BA10E DG15A DJ01E EH23 EJ19 GB07 JB16B JB16D JD05 JK02C JK03C JK20 JL02 YY00A YY00B YY00C YY00D YY00E 4L047 AA14 AA21 AA23 AA28 CA03 BA04
Claims (3)
引張強さ３００Ｎ／５ｃｍ以上で引裂強さ２０Ｎ以上の
補強層と、厚さ０.５〜５.０ｍｍの発泡シート層が、そ
れぞれ厚さ１０〜３００μｍの熱可塑性合成樹脂フィル
ム層を介して積層一体化されてなることを特徴とする塗
膜防水改修工事用下張りシート。1. A nonwoven fabric layer having a basis weight of 10 to 150 g / m 2 ,
A reinforcing layer having a tensile strength of 300 N / 5 cm or more and a tear strength of 20 N or more, and a foam sheet layer having a thickness of 0.5 to 5.0 mm are laminated via a thermoplastic synthetic resin film layer having a thickness of 10 to 300 μm. Underlay sheet for waterproof coating renovation work characterized by being integrated.
維から構成されていることを特徴とする請求項１に記載
の塗膜防水改修工事用下張りシート。2. The undercoat sheet according to claim 1, wherein the nonwoven fabric layer is composed of fibers having a fineness of 0.5 to 30 dtex.
下張りシートをアンカーピンにて機械的に下地に固定
し、その上に塗膜防水層を形成することを特徴とする防
水工法。3. The waterproofing film according to claim 1, wherein the undercoat sheet for repairing paint film waterproofing according to claim 1 or 2 is mechanically fixed to an underlayer with an anchor pin, and a waterproof paint film layer is formed thereon. Construction method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001111628A JP2002309727A (en) | 2001-04-10 | 2001-04-10 | Lining sheet for coating membrane waterproof repair work and waterproof construction method using it |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001111628A JP2002309727A (en) | 2001-04-10 | 2001-04-10 | Lining sheet for coating membrane waterproof repair work and waterproof construction method using it |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2002309727A true JP2002309727A (en) | 2002-10-23 |
Family
ID=18963198
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2001111628A Pending JP2002309727A (en) | 2001-04-10 | 2001-04-10 | Lining sheet for coating membrane waterproof repair work and waterproof construction method using it |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2002309727A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013023782A (en) * | 2011-07-21 | 2013-02-04 | Unitika Ltd | Foamed wallpaper |
| JP7712522B1 (en) * | 2025-01-17 | 2025-07-24 | パーカーアサヒ株式会社 | Waterproofing renovation method and waterproofing renovation structure |
-
2001
- 2001-04-10 JP JP2001111628A patent/JP2002309727A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013023782A (en) * | 2011-07-21 | 2013-02-04 | Unitika Ltd | Foamed wallpaper |
| JP7712522B1 (en) * | 2025-01-17 | 2025-07-24 | パーカーアサヒ株式会社 | Waterproofing renovation method and waterproofing renovation structure |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5902663A (en) | Low-stretch and dimension stable floor covering | |
| AU680546B2 (en) | Low-stretch and dimensionally stable floor covering | |
| US6436510B1 (en) | Low-flammability shingle | |
| JP2004027718A5 (en) | ||
| JP2004027718A (en) | Repair / reinforcement / deterioration prevention sheet for concrete structures and method for repair / reinforcement / deterioration prevention of concrete structures | |
| US8808481B2 (en) | Method for the production of a web | |
| US20030129897A1 (en) | Forming panel barrier | |
| JP2002309727A (en) | Lining sheet for coating membrane waterproof repair work and waterproof construction method using it | |
| EP4000916B1 (en) | FLOOR COVERING AND METHOD FOR MANUFACTURING IT | |
| WO2022067012A1 (en) | Roofing composites with integrated selvage edges | |
| JP4618908B2 (en) | Reinforcing sheet | |
| JP2808225B2 (en) | Surface material | |
| JP3408728B2 (en) | Roof underlay waterproofing sheet | |
| JPH0621507B2 (en) | Composite waterproofing method | |
| JP3994311B2 (en) | Roofing material | |
| JPH07144393A (en) | Waterproof waterproof cloth | |
| JP3167017B2 (en) | Roof underlay tarpaulin | |
| KR101673120B1 (en) | Eco-friendly waterproofing non-woven composite sheet and waterproofing composite structure using the same | |
| JP4381452B2 (en) | Aeration cushion sheet for waterproofing coating film and coating waterproofing method | |
| JP2002200703A (en) | Sheet for building material | |
| JPH081078Y2 (en) | Synthetic paper | |
| US20070122603A1 (en) | Nonwoven fibrous mats and methods | |
| JP2007210286A (en) | Air-permeable buffering sheet for coating film waterproofing construction | |
| JP2001146821A (en) | Sheet material for coating waterproofing work and coating waterproofing technique | |
| JP2001336055A (en) | Nonwoven fabric reinforcing material for water-proofing and corrosion protection treatment of coating film, and method for producing the material |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A977 | Report on retrieval |
Free format text: JAPANESE INTERMEDIATE CODE: A971007 Effective date: 20050204 |
|
| A131 | Notification of reasons for refusal |
Effective date: 20050630 Free format text: JAPANESE INTERMEDIATE CODE: A131 |
|
| A521 | Written amendment |
Effective date: 20050826 Free format text: JAPANESE INTERMEDIATE CODE: A523 |
|
| A02 | Decision of refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A02 Effective date: 20050915 |