JPH08277611A - Composite waterproof sheet for paint film waterproofing, and its using method - Google Patents
Composite waterproof sheet for paint film waterproofing, and its using methodInfo
- Publication number
- JPH08277611A JPH08277611A JP10701195A JP10701195A JPH08277611A JP H08277611 A JPH08277611 A JP H08277611A JP 10701195 A JP10701195 A JP 10701195A JP 10701195 A JP10701195 A JP 10701195A JP H08277611 A JPH08277611 A JP H08277611A
- Authority
- JP
- Japan
- Prior art keywords
- nonwoven fabric
- film waterproofing
- waterproofing agent
- paint film
- fiber
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Laminated Bodies (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は塗膜防水用複合防水シー
ト及びその使用方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a composite waterproof sheet for waterproofing a coating film and a method of using the same.
【０００２】[0002]
【従来の技術】従来、下地コンクリートの防水方法とし
て、ウレタンなどの塗膜防水剤を下地コンクリートに直
接塗布する方法が採られていた。しかしながら、この方
法では、下地コンクリートから発生する水蒸気によっ
て、塗膜防水剤が膨れ上がる、所謂、フクレが生じると
いう問題があった。そのため、特開平３−１５８５５５
号公報には、長繊維不織布Ａと合成樹脂フィルムと不織
布Ｂとを順に積層し、一体化した複合防水シートが開示
されている。この複合防水シートを下地コンクリート面
に不織布Ｂが接触するように設置すれば、不織布Ｂによ
って水蒸気を水平方向に逃し、脱気装置から排出できる
ため、フクレの生じないものである。しかしながら、こ
の複合防水シートの表面の長繊維不織布Ａは、繊維が二
次元的に配列しているため、長繊維不織布Ａ上に塗膜防
水剤を塗布する際に、作業者の靴や塗膜防水剤の塗布用
ホースなどとの摩擦によって、表面の長繊維不織布Ａが
毛羽立つため、塗膜防水剤を均一に塗布できないという
問題や、長繊維不織布Ａと塗膜防水剤との接着力が弱い
ため、実用に適さないという問題があった。2. Description of the Related Art Conventionally, a method of directly applying a coating film waterproofing agent such as urethane to the foundation concrete has been adopted as a method of waterproofing the foundation concrete. However, in this method, there is a problem that the coating film waterproofing agent swells up, that is, so-called blistering occurs due to water vapor generated from the base concrete. Therefore, JP-A-3-158555
The publication discloses a composite waterproof sheet in which a long fiber non-woven fabric A, a synthetic resin film and a non-woven fabric B are sequentially laminated and integrated. If this composite waterproof sheet is installed so that the non-woven fabric B contacts the ground concrete surface, the non-woven fabric B allows water vapor to escape in the horizontal direction and be discharged from the deaerator, so that no blistering occurs. However, since the long-fiber non-woven fabric A on the surface of this composite waterproof sheet has two-dimensionally arranged fibers, when applying the coating film waterproofing agent on the long-fiber non-woven fabric A, the shoes and the coating film of the worker are The long fiber non-woven fabric A on the surface is fluffed due to friction with the hose for applying the waterproof agent, so that the coating film waterproof agent cannot be applied uniformly, and the adhesive strength between the long fiber non-woven fabric A and the film waterproof agent is weak. Therefore, there is a problem that it is not suitable for practical use.
【０００３】[0003]
【発明が解決しようとする課題】本発明は上記の欠点を
解決するためになされたものであり、塗膜防水剤を均一
に塗布でき、しかも塗膜防水剤との接着力に優れた複合
防水シート、及びその使用方法を提供することを目的と
する。SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned drawbacks, and is a composite waterproofing which can uniformly apply a waterproof film to a coating film and has an excellent adhesive force with the waterproof film. A sheet and a method of using the sheet are provided.
【０００４】[0004]
【課題を解決するための手段】本発明の塗膜防水用複合
防水シート（以下、「複合防水シート」という）は、通
気性不織布と、防水性フィルムと、塗膜防水剤と接着す
る表面不織布とを、順に積層し、一体化したものであ
り、この表面不織布が融着繊維を含み、三次元的に絡合
したものであり、かつ、この融着繊維が融着したもので
ある。また、本発明の複合防水シートの使用方法は、上
記複合防水シートを、通気性不織布が下地コンクリート
と接触するように設置した後、表面不織布上に塗膜防水
剤を塗布する方法である。A composite waterproof sheet for coating film waterproofing of the present invention (hereinafter referred to as "composite waterproof sheet") is a breathable nonwoven fabric, a waterproof film, and a surface nonwoven fabric that adheres to a coating film waterproofing agent. Are sequentially laminated and integrated, the surface non-woven fabric contains fusion fibers and is three-dimensionally entangled, and the fusion fibers are fused. The method of using the composite waterproof sheet of the present invention is a method in which the composite waterproof sheet is placed so that the breathable nonwoven fabric comes into contact with the base concrete, and then the coating waterproof agent is applied onto the surface nonwoven fabric.
【０００５】[0005]
【作用】本発明の複合防水シートは、塗膜防水剤を塗布
する表面不織布として、三次元的に絡合した不織布を使
用しているため、絡合によって生じた開孔に塗膜防水剤
が侵入しやすく、アンカー効果によって、塗膜防水剤と
の接着力が強くなる。また、表面不織布を構成する融着
繊維が融着しており、絡合した状態で固定されているた
め、耐磨耗性にも優れ、作業者の靴や塗膜防水剤の塗布
用ホースなどとの摩擦によっても毛羽立たないため、複
合防水シートに塗膜防水剤を均一に塗布できる。The composite waterproof sheet of the present invention uses a three-dimensionally entangled nonwoven fabric as the surface nonwoven fabric to which the coating film waterproofing agent is applied. It easily penetrates, and the anchor effect strengthens the adhesive strength with the waterproof film. In addition, since the fusible fibers that make up the surface non-woven fabric are fused and fixed in an entangled state, they are also excellent in abrasion resistance, such as shoes for workers and hoses for applying waterproof film Since it does not fluff even when it is rubbed with, it is possible to uniformly apply the coating film waterproofing agent to the composite waterproof sheet.
【０００６】本発明の表面不織布の構成繊維としては、
耐候性に優れるものを使用するのが好ましく、例えば、
ナイロン６繊維、ナイロン６６繊維、ポリエステル繊
維、アクリル繊維、ビニロン繊維、ビニリデン繊維、ポ
リ塩化ビニル繊維、フッ素繊維、芳香族ポリアミド繊維
などの合成繊維や、炭素繊維などの無機繊維を使用でき
る。これらの中でも、ポリエステル繊維、アクリル繊
維、ビニロン繊維は耐候性に優れていると共に安価であ
るため、好適に使用できる。また、構成繊維を絡合した
後に融着して固定できるように、融着繊維は５〜７０重
量％使用するのが好ましい。融着繊維の量が５重量％未
満では耐磨耗性が悪く、７０重量％を越えると、剛性が
高くなり過ぎて取り扱いにくくなるためで、より好まし
くは１０〜５０重量％使用する。この融着繊維として
は、例えば、ポリエステル共重合体、ナイロン共重合
体、ポリエチレンなどの単一成分からなる融着繊維であ
っても良いし、例えば、ナイロン６６／ナイロン６、ナ
イロン６／ナイロン共重合体、ポリエステル／ポリエス
テル共重合体、ポリプロピレン／ポリエチレンなどの樹
脂成分を組み合わせた、芯鞘型、偏芯型、貼り合わせ型
などの複合融着繊維であっても良い。特に、後者の複合
融着繊維であると、融着しない樹脂成分によって繊維形
状を維持でき、より強度的に優れているため、より好適
に使用できる。この複合融着繊維の中でも、ポリエステ
ル／ポリエステル共重合体からなる複合融着繊維は接着
力が強いため、好適に使用できる。The constituent fibers of the surface non-woven fabric of the present invention include:
It is preferable to use one having excellent weather resistance, for example,
Synthetic fibers such as nylon 6 fibers, nylon 66 fibers, polyester fibers, acrylic fibers, vinylon fibers, vinylidene fibers, polyvinyl chloride fibers, fluorine fibers, aromatic polyamide fibers, and inorganic fibers such as carbon fibers can be used. Among these, polyester fiber, acrylic fiber, and vinylon fiber are excellent in weather resistance and inexpensive, and thus can be suitably used. Further, it is preferable to use 5 to 70% by weight of the fusion fiber so that the constituent fibers can be fused and fixed after being entangled. If the amount of fusible fibers is less than 5% by weight, abrasion resistance is poor, and if it exceeds 70% by weight, rigidity becomes too high and handling becomes difficult. Therefore, more preferably 10 to 50% by weight is used. The fusible fiber may be, for example, a fusible fiber composed of a single component such as a polyester copolymer, a nylon copolymer, or polyethylene. For example, nylon 66 / nylon 6 or nylon 6 / nylon It may be a composite fusion fiber such as a core-sheath type, an eccentric type, a laminating type, etc., which is a combination of resin components such as a polymer, a polyester / polyester copolymer, and polypropylene / polyethylene. In particular, the latter composite fusion-bonded fiber can be used more preferably because the fiber shape can be maintained by the resin component that is not melt-bonded and the strength is more excellent. Among these composite fusion fibers, the composite fusion fiber made of polyester / polyester copolymer has a strong adhesive force and thus can be suitably used.
【０００７】表面不織布に使用する繊維の繊度は、塗膜
防水剤が浸透しやすいように、０.５デニール以上であ
るのが好ましく、より好ましくは１デニール以上で、表
面が平滑になるように、１５デニール以下であるのが好
ましく、より好ましくは１０デニール以下である。ま
た、繊維長は、後述の絡合処理によって繊維が絡みやす
い、つまり、自由度の高い短繊維が好ましいので、１１
０mm以下であるのが好ましい。なお、１１０mm以下の短
繊維を使用する場合、繊維ウエブの形成方法として、一
般的に二種類の方法があり、一つ目の方法である、カー
ド法やエアレイ法などの乾式法によって繊維ウエブを形
成する場合には、繊維長３０〜１１０mmの繊維を使用
し、二つ目の方法である、湿式法によって繊維ウエブを
形成する場合には、繊維長３〜３０mmの繊維を使用す
る。これら繊維ウエブの形成方法の中でも、前者の乾式
法による場合の方が、より繊維の絡合度合が高く、耐磨
耗性及び強度的に優れた表面不織布とすることができる
ので、より好適である。なお、これらの方法によって得
られる繊維ウエブを適宜組み合わせても良い。The fineness of the fibers used for the surface non-woven fabric is preferably 0.5 denier or more, more preferably 1 denier or more, so that the coating film waterproofing agent can easily permeate, so that the surface becomes smooth. It is preferably 15 denier or less, and more preferably 10 denier or less. Further, as for the fiber length, since the fibers are easily entangled by the entanglement treatment described later, that is, a short fiber having a high degree of freedom is preferable.
It is preferably 0 mm or less. When using short fibers of 110 mm or less, there are generally two types of methods for forming a fibrous web, and the fibrous web is formed by the first method, which is a dry method such as a card method or an air lay method. When forming, a fiber having a fiber length of 30 to 110 mm is used, and when forming a fiber web by a wet method, which is the second method, a fiber having a fiber length of 3 to 30 mm is used. Among these methods for forming a fiber web, the former dry method is more preferable because it has a higher degree of fiber entanglement and can be a surface non-woven fabric having excellent abrasion resistance and strength. is there. The fiber webs obtained by these methods may be combined appropriately.
【０００８】本発明の表面不織布は前述のような繊維か
ら形成した繊維ウエブを、水流やニードルを作用させて
絡合した後、熱処理により融着繊維を融着したものであ
る。これら絡合方法の中でも、水流絡合法により絡合さ
せると、繊維の絡合度合がより高く、繊維ウエブ全体に
亘って、均一に絡合させることができ、しかも水流絡合
処理後の熱処理による融着点が多くなり、より耐磨耗性
及び強度的に優れた表面不織布を得ることができるの
で、好適な絡合方法である。この水流絡合法の場合に
は、例えば、水圧２０〜１５０kg/cm2の水流を繊維ウエ
ブに作用させる。なお、この水流絡合法により繊維ウエ
ブを絡合する場合、繊維ウエブを支持する支持体によっ
て、明確な開孔を有する表面不織布や、微細な開孔を有
するが、見た目には開孔のない表面不織布を得ることが
でき、使用する塗膜防水剤の種類によっては、明確な開
孔を有する表面不織布とした方が、よりアンカー効果が
働き、塗膜防水剤との接着力の優れたものとすることが
できる。前者の明確な開孔を有する表面不織布は、５０
メッシュ以上の目の粗い支持体を使用すれば、得ること
ができる。The surface non-woven fabric of the present invention is obtained by fusing a fiber web formed of the above-mentioned fibers with a stream of water or a needle to entangle and then heat-bonding the fusion fibers. Among these entanglement methods, when entangled by the hydroentanglement method, the degree of entanglement of the fibers is higher, and it can be uniformly entangled over the entire fiber web, and further, by the heat treatment after the hydroentanglement treatment. This is a preferable entanglement method because the number of fusion points increases and a surface non-woven fabric having more excellent abrasion resistance and strength can be obtained. In the case of this hydroentangling method, for example, a water flow having a water pressure of 20 to 150 kg / cm 2 is applied to the fiber web. When the fiber web is entangled by this hydroentanglement method, the surface supporting the fiber web supports a nonwoven fabric having clear pores, or a surface having fine pores, but the surface having no apparent pores. A non-woven fabric can be obtained, and depending on the type of coating film waterproofing agent used, a surface non-woven fabric with clear pores will have a better anchoring effect and superior adhesive strength with the coating film waterproofing agent. can do. The former surface non-woven fabric with clear pores is 50
It can be obtained by using a coarse support having a mesh or larger.
【０００９】このように絡合した繊維ウエブは、熱処理
され、融着繊維を融着させて、本発明の表面不織布とな
るが、この熱処理は融着繊維の融着樹脂成分の融点より
も１０℃以上高い温度で行ない、確実に融着するのが好
ましい。この融着は無加圧下で行い、絡合により生じた
開孔を塞がないようにするのが好ましいが、開孔を塞が
ないのであれば、絡合した繊維ウエブを全面的又は部分
的に、加熱加圧処理しても良い。The fiber web thus entangled is heat-treated to fuse the fusion fibers to form the surface nonwoven fabric of the present invention. This heat treatment is 10 times higher than the melting point of the fusion resin component of the fusion fibers. It is preferable to carry out fusion at a high temperature of ℃ or higher to ensure fusion. It is preferable that this fusion is performed under no pressure so as not to close the openings generated by the entanglement. However, if the openings are not closed, the entangled fiber web may be entirely or partially covered. Alternatively, heat and pressure treatment may be performed.
【００１０】なお、表面不織布は塗膜防水剤との接着力
をより強くするために、コロナ処理やプラズマ処理など
の放電処理を行うのが好ましい。The surface non-woven fabric is preferably subjected to an electric discharge treatment such as a corona treatment or a plasma treatment in order to enhance the adhesive strength with the coating film waterproofing agent.
【００１１】このようにして得られる表面不織布は、塗
膜防水剤との接着性に優れるように、目付は１５g/m2以
上であるのが好ましく、塗膜防水剤が浸透しやすいよう
に、１００g/m2以下であるのが好ましく、より好ましく
は２０〜６０g/m2である。また、厚さは塗膜防水剤との
接着性に優れるように、０.１〜０.５mmであるのが好ま
しい。The surface non-woven fabric thus obtained preferably has a basis weight of 15 g / m 2 or more so as to have excellent adhesiveness to the coating film waterproofing agent, so that the coating film waterproofing agent can easily penetrate. is preferably at 100 g / m 2 or less, more preferably 20 to 60 g / m 2. Further, the thickness is preferably 0.1 to 0.5 mm so that the adhesiveness with the waterproof film is excellent.
【００１２】本発明の複合防水シートは上記のような表
面不織布と、防水性フィルムと、通気性不織布とを順に
積層し、一体化したものである。この防水性フィルムと
しては、防水性であれば良く、特に限定するものではな
いが、厚さ３０〜８０μm程度で、例えば、ポリエチレ
ンやポリプロピレンなどのポリオレフィン系、ポリアミ
ド系、ポリエステル系、ポリ塩化ビニルなどの樹脂成分
からなるフィルムが使用できる。他方、通気性不織布と
しては、下地コンクリートから発生する水蒸気を水平方
向に逃すことのできる、例えば、目付１５０〜３００g/
m2、厚さ１〜３mm程度の、表面不織布を構成する繊維と
同様の繊維からなる不織布を使用できる。なお、表面不
織布と、防水性フィルムと、通気性不織布とを順に積層
し、一体化する方法としては、例えば、表面不織布又は
通気性不織布上に、防水性フィルムを溶融した状態で押
し出した後、通気性不織布又は表面不織布を積層して融
着する方法や、表面不織布や通気性不織布中の融着繊維
により融着する方法などがある。The composite waterproof sheet of the present invention comprises the surface nonwoven fabric, the waterproof film, and the breathable nonwoven fabric, which are laminated in this order and integrated. The waterproof film is not particularly limited as long as it is waterproof, but it has a thickness of about 30 to 80 μm, and is, for example, polyolefin such as polyethylene or polypropylene, polyamide, polyester, polyvinyl chloride, etc. A film made of the resin component of can be used. On the other hand, as the breathable nonwoven fabric, water vapor generated from the base concrete can be released in the horizontal direction, for example, a basis weight of 150 to 300 g /
A non-woven fabric made of the same fibers as the surface non-woven fabric and having a thickness of m 2 and a thickness of about 1 to 3 mm can be used. Incidentally, the surface nonwoven fabric, a waterproof film, and a breathable nonwoven fabric are sequentially laminated, and as a method of integrating, for example, on the surface nonwoven fabric or breathable nonwoven fabric, after extruding the waterproof film in a molten state, There are a method of laminating a breathable non-woven fabric or a surface non-woven fabric and fusion bonding, and a method of fusing with a fusion fiber in the surface non-woven fabric or the breathable non-woven fabric.
【００１３】以上のような本発明の複合防水シートの使
用方法としては、複合防水シートの通気性不織布が下地
コンクリートと接触するように設置した後、表面不織布
上に塗膜防水剤を塗布する。このように複合防水シート
を設置することにより、下地コンクリートから発生する
水蒸気を通気性不織布により水平方向に逃して、脱気装
置から排出できるので、フクレが生じず、また、防水性
フィルム上に耐磨耗性に優れた表面不織布があり、塗膜
防水剤の塗布作業中に毛羽立たないので、塗膜防水剤を
均一に、しかも強固に接着でき、複合防水シートと塗膜
防水剤とが剥離しないものである。As a method of using the composite waterproof sheet of the present invention as described above, the breathable nonwoven fabric of the composite waterproof sheet is installed so as to come into contact with the base concrete, and then the coating waterproof agent is applied onto the surface nonwoven fabric. By installing the composite waterproof sheet in this way, water vapor generated from the base concrete can be horizontally escaped by the breathable nonwoven fabric and discharged from the deaerator, so no blistering occurs and the waterproof film is resistant. There is a non-woven fabric with excellent abrasion resistance, and it does not fluff during the application of the coating waterproof agent, so the coating waterproof agent can be evenly and firmly adhered, and the composite waterproof sheet and the coating waterproof agent do not separate. It is a thing.
【００１４】以下に、本発明の実施例を記載するが、以
下の実施例に限定されるものではない。Examples of the present invention will be described below, but the invention is not limited to the following examples.
【００１５】[0015]
（実施例１）アクリル繊維（繊度１.５デニール、繊維
長５１mm）７０重量％と、芯成分がポリエステル（融点
２６０℃）で、鞘成分がポリエステル共重合体（融点１
１０℃）からなる芯鞘型の複合融着繊維（繊度２デニー
ル、繊維長６４mm）３０重量％とを混合し、カーディン
グして繊維ウエブを得た。この繊維ウエブを８０メッシ
ュのネット状支持体に載置し、径０.１３mm、ピッチ０.
６mmのノズルプレートから圧力９０kg/cm2の水流を２回
噴出し、次いで、繊維ウエブを反転させた後、同様にし
て、圧力９０kg/cm2の水流を２回噴出し、微細な開孔を
有するものの、見た目には孔のない不織布を得た。そし
て、この不織布を１７０℃で熱処理して、複合融着繊維
の鞘成分であるポリエステル共重合体を融着させて、目
付２５g/m2、厚さ０.２９mmの表面不織布を得た。(Example 1) 70% by weight of acrylic fiber (fineness: 1.5 denier, fiber length: 51 mm), polyester as a core component (melting point 260 ° C.) and polyester copolymer (melting point 1)
A core-sheath type composite fused fiber (10 ° C.) (fineness: 2 denier, fiber length: 64 mm) was mixed with 30% by weight and carded to obtain a fiber web. This fiber web is placed on a net-like support of 80 mesh and has a diameter of 0.13 mm and a pitch of 0.1.
The water flow from the nozzle plate of the pressure 90 kg / cm 2 of 6mm jetted twice, then after inverting the fiber web, in the same manner, the water flow pressure 90 kg / cm 2 was jetted twice, the fine apertures A non-woven fabric was obtained which had no pores although it had the appearance. Then, this nonwoven fabric was heat-treated at 170 ° C. to fuse the polyester copolymer, which is a sheath component of the composite fusion fiber, to obtain a surface nonwoven fabric having a basis weight of 25 g / m 2 and a thickness of 0.29 mm.
【００１６】他方、ポリエステル繊維（繊度３デニー
ル、繊維長６４mm）１００％をカーディングして得た繊
維ウエブを、針密度１００本／cm2でニードルパンチ処
理を行い、目付２００g/m2、厚さ２.５mmの通気性不織
布を得た。そして、この通気性不織布上に低密度ポリエ
チレンからなる、厚さ６０μmの溶融した防水性フィル
ムを押し出し、この防水性フィルム上に前記表面不織布
を積層した後、コロナ放電処理を行い、複合防水シート
を得た。On the other hand, a fiber web obtained by carding 100% of polyester fiber (fineness: 3 denier, fiber length: 64 mm) was needle punched at a needle density of 100 fibers / cm 2 to give a basis weight of 200 g / m 2 , thickness. A breathable non-woven fabric having a size of 2.5 mm was obtained. Then, a molten waterproof film made of low-density polyethylene and having a thickness of 60 μm was extruded on the breathable nonwoven fabric, and after laminating the surface nonwoven fabric on the waterproof film, corona discharge treatment was performed to obtain a composite waterproof sheet. Obtained.
【００１７】（実施例２）実施例１のアクリル繊維に代
えて、ポリエステル繊維（繊度１.５デニール、繊維長
５１mm）を７０重量％使用し、目付３０g/m2、厚さ０.
３２mmの表面不織布を得たこと以外は、実施例１と全く
同様にして、複合防水シートを得た。(Example 2) Instead of the acrylic fiber of Example 1, 70% by weight of polyester fiber (fineness: 1.5 denier, fiber length: 51 mm) was used, and a basis weight of 30 g / m 2 and a thickness of 0.
A composite waterproof sheet was obtained in exactly the same manner as in Example 1, except that a 32 mm surface nonwoven fabric was obtained.
【００１８】（比較例１）実施例１と全く同様にして得
た、微細な開孔を有するものの、見た目には孔のない、
目付２５g/m2、厚さ０.３０mmの不織布（複合融着繊維
の鞘成分は融着していない）を、表面不織布とした以外
は、実施例１と全く同様にして複合防水シートを得た。(Comparative Example 1) Although obtained in exactly the same manner as in Example 1, it has fine open pores, but has no apparent pores.
A composite waterproof sheet was obtained in exactly the same manner as in Example 1, except that a non-woven fabric having a basis weight of 25 g / m 2 and a thickness of 0.30 mm (the sheath component of the composite fused fiber was not fused) was used as the surface nonwoven fabric. It was
【００１９】（比較例２）実施例１と全く同様にして得
た繊維ウエブ（水流絡合していない）を、１７０℃で熱
処理して、複合融着繊維の鞘成分であるポリエステル共
重合体を融着させた、目付２５g/m2、厚さ０.２５mmの
表面不織布を使用した以外は、実施例１と全く同様にし
て複合防水シートを得た。Comparative Example 2 A fiber web (not hydroentangled) obtained in exactly the same manner as in Example 1 was heat-treated at 170 ° C. to make a polyester copolymer which is a sheath component of the composite fused fiber. A composite waterproof sheet was obtained in exactly the same manner as in Example 1 except that a non-woven fabric having a basis weight of 25 g / m 2 and a thickness of 0.25 mm was used.
【００２０】（比較例３）実施例１の表面不織布に代え
て、繊度３デニールのポリエステル繊維からなる、スパ
ンボンド法により得た繊維ウエブを、１８０℃、線圧１
０kg/cmのカレンダーロール間を通して得た、目付４０g
/m2、厚さ０.２mmの表面不織布を使用した以外は、実施
例１と全く同様にして複合防水シートを得た。(Comparative Example 3) Instead of the surface non-woven fabric of Example 1, a fiber web obtained by the spunbond method, which is made of polyester fiber having a fineness of 3 denier, is used at 180 ° C. and a linear pressure of 1
40g basis weight obtained by passing between 0kg / cm calender rolls
A composite waterproof sheet was obtained in exactly the same manner as in Example 1 except that a non-woven fabric having a surface area of / m 2 and a thickness of 0.2 mm was used.
【００２１】（耐磨耗性試験）実施例１〜２及び比較例
１〜３の表面不織布の耐磨耗性を、ＪＩＳ Ｌ ０８２３
３.２に規定する摩擦試験機II型を使用して評価した。
なお、摩擦子の荷重５００g、摩擦子としてカナキンを
使用し、３００回往復させた。この結果は表１に示す。(Abrasion resistance test) The abrasion resistance of the surface nonwoven fabrics of Examples 1 and 2 and Comparative Examples 1 to 3 was measured according to JIS L 0823.
Evaluation was performed using a friction tester type II specified in 3.2.
In addition, the load of the friction element was 500 g, and kanaquin was used as the friction element, which was reciprocated 300 times. The results are shown in Table 1.
【００２２】[0022]
【表１】 [Table 1]
【００２３】（接着強度試験）実施例１〜２及び比較例
１〜３の複合防水シートの一端に不織布を介在させた状
態で、ウレタン塗膜防水剤を２,０００g/m2量塗布した
後、複合防水シートとウレタン塗膜防水剤との接着強度
をテンシロン（オリエンテック（株）製、ＵＴＭ−ＩＩ
Ｉ−１００）により、測定幅５cm、測定長さ２００mm、
測定速度２００mm/minで測定した。この結果も表１に示
す。(Adhesive Strength Test) After applying a urethane coating film waterproofing agent in an amount of 2,000 g / m 2 with a nonwoven fabric interposed at one end of each of the composite waterproof sheets of Examples 1-2 and Comparative Examples 1-3. , Tensilon (manufactured by Orientec Co., Ltd., UTM-II)
I-100), measuring width 5 cm, measuring length 200 mm,
The measurement was performed at a measurement speed of 200 mm / min. The results are also shown in Table 1.
【００２４】[0024]
【発明の効果】本発明の複合防水シートは、塗膜防水剤
を塗布する表面不織布として、三次元的に絡合した不織
布を使用しているため、絡合によって生じた開孔に塗膜
防水剤が侵入しやすく、アンカー効果によって、複合防
水シートと塗膜防水剤との接着力が強くなる。また、表
面不織布を構成する融着繊維が融着しており、絡合した
状態で固定されているため、耐磨耗性にも優れ、作業者
の靴や塗膜防水剤の塗布用ホースなどとの摩擦によって
毛羽立たないため、複合防水シートに塗膜防水剤を均一
に塗布できる。The composite waterproof sheet of the present invention uses a three-dimensionally entangled non-woven fabric as the surface non-woven fabric on which the waterproof film coating agent is applied. The agent easily penetrates, and the anchor effect strengthens the adhesive force between the composite waterproof sheet and the coating film waterproof agent. In addition, since the fusible fibers that make up the surface non-woven fabric are fused and fixed in an entangled state, they are also excellent in abrasion resistance, such as shoes for workers and hoses for applying waterproof film Since it does not fluff due to friction with, it is possible to uniformly apply the coating film waterproofing agent to the composite waterproof sheet.
【００２５】本発明の塗膜防水用複合防水シートの使用
方法は、上記の塗膜防水用複合防水シートを、通気性不
織布が下地コンクリートと接触するように設置した後、
表面不織布上に塗膜防水剤を塗布する方法であるため、
フクレを生じず、また、塗膜防水剤を均一に塗布できる
方法である。The method of using the composite waterproof sheet for coating film waterproofing of the present invention is as follows. After installing the above-mentioned composite waterproof sheet for coating film waterproofing so that the breathable non-woven fabric comes into contact with the underlying concrete,
Since it is a method of applying a waterproof film on the surface non-woven fabric,
It is a method that does not cause blistering and can apply the coating film waterproofing agent uniformly.
Claims (2)
膜防水剤と接着する表面不織布とを、順に積層し、一体
化した塗膜防水用複合防水シートにおいて、該表面不織
布が融着繊維を含み、三次元的に絡合したものであり、
かつ、該融着繊維が融着したものであることを特徴とす
る塗膜防水用複合防水シート。1. A composite waterproof sheet for coating film waterproofing in which a breathable nonwoven fabric, a waterproof film, and a surface nonwoven fabric that adheres to a coating film waterproofing agent are laminated in this order, and the surface nonwoven fabric is a fusion fiber. , Which is entangled three-dimensionally,
A composite waterproof sheet for coating film waterproofing, characterized in that the fused fibers are fused.
トを、通気性不織布が下地コンクリートと接触するよう
に設置した後、表面不織布上に塗膜防水剤を塗布するこ
とを特徴とする塗膜防水用複合防水シートの使用方法。2. The composite waterproof sheet for waterproofing a coating film according to claim 1, wherein the breathable nonwoven fabric is installed so as to come into contact with the base concrete, and then the coating waterproofing agent is applied onto the surface nonwoven fabric. How to use a composite waterproof sheet for waterproof coating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10701195A JP3464844B2 (en) | 1995-04-05 | 1995-04-05 | Composite waterproof sheet for coating film waterproofing and method of using the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10701195A JP3464844B2 (en) | 1995-04-05 | 1995-04-05 | Composite waterproof sheet for coating film waterproofing and method of using the same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH08277611A true JPH08277611A (en) | 1996-10-22 |
| JP3464844B2 JP3464844B2 (en) | 2003-11-10 |
Family
ID=14448245
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10701195A Expired - Fee Related JP3464844B2 (en) | 1995-04-05 | 1995-04-05 | Composite waterproof sheet for coating film waterproofing and method of using the same |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3464844B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008149564A1 (en) * | 2007-06-05 | 2008-12-11 | Toyo Boseki Kabushiki Kaisha | Cushioning underlayer material for liquid-applied membrane waterproofing and method for liquid-applied membrane waterproofing |
| JP2012026150A (en) * | 2010-07-22 | 2012-02-09 | Toyobo Co Ltd | Coating film waterproof sheet |
| JP2013019231A (en) * | 2011-07-14 | 2013-01-31 | Shu Company:Kk | Coating film waterproof construction method, entire coating film waterproof layers formed by the construction method, and waterproof underlayer structure used for the construction method |
-
1995
- 1995-04-05 JP JP10701195A patent/JP3464844B2/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008149564A1 (en) * | 2007-06-05 | 2008-12-11 | Toyo Boseki Kabushiki Kaisha | Cushioning underlayer material for liquid-applied membrane waterproofing and method for liquid-applied membrane waterproofing |
| JP2012026150A (en) * | 2010-07-22 | 2012-02-09 | Toyobo Co Ltd | Coating film waterproof sheet |
| JP2013019231A (en) * | 2011-07-14 | 2013-01-31 | Shu Company:Kk | Coating film waterproof construction method, entire coating film waterproof layers formed by the construction method, and waterproof underlayer structure used for the construction method |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3464844B2 (en) | 2003-11-10 |
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