JP2000257248A - Cushioning material for floor - Google Patents
Cushioning material for floorInfo
- Publication number
- JP2000257248A JP2000257248A JP11058871A JP5887199A JP2000257248A JP 2000257248 A JP2000257248 A JP 2000257248A JP 11058871 A JP11058871 A JP 11058871A JP 5887199 A JP5887199 A JP 5887199A JP 2000257248 A JP2000257248 A JP 2000257248A
- Authority
- JP
- Japan
- Prior art keywords
- sheet
- sound absorbing
- adhesive layer
- reinforcing
- absorbing material
- 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
- Floor Finish (AREA)
- Laminated Bodies (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は床用緩衝材に関し、
さらに詳しくは防水性、防湿性およびコンクリートスラ
ブ床面との接着性に優れ、しかも、製造工程の合理化を
図ることができる、木質系防音床材に使用する床用緩衝
材に関する。The present invention relates to a cushioning material for floors,
More specifically, the present invention relates to a floor cushioning material used for a wood-based sound-insulating flooring material, which is excellent in waterproofness, moisture-proofness, and adhesion to a concrete slab floor surface, and can streamline the manufacturing process.
【０００２】[0002]
【従来の技術】従来よりゴムシート、合成樹脂発泡シー
ト、嵩高不織布などの吸音材を木質系基材に接合した木
質系防音床材が使用されている。特に近年は高い防音性
が要求されており、熱圧縮ウレタンフォーム、熱エンボ
スウレタンフォーム、チップウレタンフォームなどの高
吸音性を有する吸音材が用いられている。しかし、高い
吸音性を有する吸音材には多数の空隙が存在するため、
このような吸音材と木質系基材との貼合せ加工時やコン
クリートスラブ床面への施工時に接着剤が塗布される
と、接着剤が吸音材の空隙に染み込んで硬化し、吸音性
が低下するという問題があった。また吸音材がコンクリ
ートスラブ床面と接すると該コンクリートスラブ床面の
水分が吸音材を通過し、木質系基材と吸音材との接着性
を低下させたり、木質系基材を変形させるなどの問題が
生じる。2. Description of the Related Art Conventionally, a wood-based soundproof flooring material in which a sound-absorbing material such as a rubber sheet, a synthetic resin foam sheet, or a bulky nonwoven fabric is joined to a wood-based substrate has been used. Particularly, in recent years, high soundproofing properties have been required, and sound-absorbing materials having high sound-absorbing properties such as heat-compressed urethane foam, hot-embossed urethane foam, and chip urethane foam have been used. However, the sound absorbing material having high sound absorbing properties has many voids,
If an adhesive is applied during lamination processing of such a sound absorbing material and a wooden base material or during construction on a concrete slab floor, the adhesive will permeate into the voids of the sound absorbing material and harden, resulting in reduced sound absorption. There was a problem of doing. Also, when the sound absorbing material comes into contact with the concrete slab floor surface, the moisture on the concrete slab floor surface passes through the sound absorbing material, thereby reducing the adhesiveness between the wooden base material and the sound absorbing material, or deforming the wooden base material. Problems arise.
【０００３】このような問題を解決するため、コンクリ
ート面からの吸い込みを防止するために、凹凸模様を有
する吸音材の凸部に接着剤を塗布して合成樹脂フィルム
を貼着した緩衝材（特開平８−２７７６２２号公報）
や、凹凸模様を有する吸音材と合成樹脂フィルムの接着
性を改良するために、これらの間に不織布を介在させた
緩衝材（特開平８−２３２４５０号公報）が提案されて
いる。しかし、上記の緩衝材では、コンクリートスラブ
床面と接する面が合成樹脂フィルムであるため接着性に
劣り、施工時または施工後に剥がれ易いという問題があ
った。また吸音材に接着剤を塗布すると接着剤が吸音材
の空隙にしみ込んで硬化し、吸音材の吸音性を低下させ
るという問題があった。さらに上記緩衝材の製造には、
吸音材凸部、不織布、合成樹脂フィルムに接着剤を塗布
する工程、平板プレス機または加圧ロールを用いて圧着
する工程、および養生工程を経るので、加工設備が大が
かりとなり、生産工程数が多く、製造時間も長くなり、
製造コストが増大するという問題があった。[0003] In order to solve such a problem, in order to prevent suction from the concrete surface, a cushioning material in which an adhesive is applied to a convex portion of a sound absorbing material having a concavo-convex pattern and a synthetic resin film is adhered thereto. Japanese Unexamined Patent Publication No. 8-277622)
In order to improve the adhesiveness between a sound absorbing material having a concavo-convex pattern and a synthetic resin film, a cushioning material having a nonwoven fabric interposed between them has been proposed (Japanese Patent Application Laid-Open No. Hei 8-232450). However, the cushioning material has a problem in that the surface in contact with the concrete slab floor surface is a synthetic resin film, so that it has poor adhesiveness and is easily peeled off during or after construction. Further, when the adhesive is applied to the sound absorbing material, the adhesive penetrates into the voids of the sound absorbing material and is hardened, which causes a problem that the sound absorbing property of the sound absorbing material is reduced. Furthermore, in the production of the above cushioning material,
The process goes through the process of applying adhesive to the sound absorbing material convex part, nonwoven fabric, synthetic resin film, the process of pressing using a flat plate press or a pressure roll, and the curing process. , The production time is longer,
There is a problem that the manufacturing cost increases.
【０００４】[0004]
【発明が解決しようとする課題】本発明の課題は、上記
従来技術の問題を解決し、防水性および防湿性のみなら
ず、コンクリートスラブ床面との接着性に優れ、しか
も、製造工程の合理化を図り、コスト低減が可能な床用
緩衝材を提供することにある。SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned problems of the prior art and to provide not only waterproof and moisture-proof properties but also excellent adhesiveness to a concrete slab floor, and furthermore, to streamline the manufacturing process. To provide a floor cushioning material capable of reducing costs.
【０００５】[0005]
【課題を解決するための手段】本発明で特許請求される
発明は以下のとおりである。 （１）補強材シートに接着剤層を形成して得られた補強
シートを、前記接着剤層を介して吸音材の少なくとも片
面に接合してなることを特徴とする床用緩衝材。 （２）前記接着剤層がホットメルト系樹脂層であること
を特徴とする（１）記載の床用緩衝材。 （３）前記補強シートの接着剤層と補強材シートの間に
合成樹脂フィルムを介在させたことを特徴とする（１）
または（２）記載の床用緩衝材。 （４）前記補強材シートが不織布であることを特徴とす
る（１）〜（３）のいずれかに記載の床用緩衝材。 （５）（１）〜（４）のいずれかに記載の床用緩衝材の
吸音材面を、木質系基材の裏面に接合したことを特徴と
する木質系防音床材。The invention claimed in the present invention is as follows. (1) A cushioning material for floors, wherein a reinforcing sheet obtained by forming an adhesive layer on a reinforcing material sheet is bonded to at least one surface of a sound absorbing material via the adhesive layer. (2) The floor cushioning material according to (1), wherein the adhesive layer is a hot melt resin layer. (3) A synthetic resin film is interposed between the adhesive layer of the reinforcing sheet and the reinforcing material sheet (1).
Or the cushioning material for floors according to (2). (4) The floor cushioning material according to any one of (1) to (3), wherein the reinforcing material sheet is a nonwoven fabric. (5) A wood-based sound-insulating flooring, wherein the surface of the sound-absorbing material of the floor cushioning material according to any one of (1) to (4) is joined to a back surface of a wooden base.
【０００６】[0006]
【発明の実施の形態】図１は、本発明の一実施例を示す
床用緩衝材の断面図である。図１において、床用緩衝材
１は、吸音材２と、接着剤層３および補強材シート４か
らなる補強シート５とからなり、吸音材２はその片面が
補強シート５の接着剤層３に接合されている。図２は、
本発明の他の実施例を示す床用緩衝材の断面図である。
図２において、床用緩衝材１は、吸音材２と、接着剤層
３、合成樹脂フィルム７および補強材シート４からなる
補強シート５とからなり、吸音材２はその片面が補強シ
ート５の接着剤層３に接合されている。このような構成
を有する床用緩衝材１は、図示しない木質系基材と接合
されて木質系防音床材とされ、施工時には床用緩衝材１
の補強材シート４がコンクリートスラブ床面に貼着され
る。FIG. 1 is a sectional view of a cushioning material for a floor showing one embodiment of the present invention. In FIG. 1, a floor cushioning material 1 includes a sound absorbing material 2 and a reinforcing sheet 5 including an adhesive layer 3 and a reinforcing material sheet 4. One side of the sound absorbing material 2 is provided on the adhesive layer 3 of the reinforcing sheet 5. Are joined. FIG.
It is sectional drawing of the cushioning material for floors which shows another Example of this invention.
In FIG. 2, the floor cushioning material 1 includes a sound absorbing material 2 and a reinforcing sheet 5 including an adhesive layer 3, a synthetic resin film 7, and a reinforcing material sheet 4. It is joined to the adhesive layer 3. The floor cushioning material 1 having such a configuration is joined to a wooden base material (not shown) to form a wooden soundproof flooring material.
Is attached to the concrete slab floor surface.
【０００７】本発明に用いられる吸音材としては、例え
ばＬ−５０、４５、４０などの高い吸音性の木質系床材
に使用されている、ウレタンフォーム、熱圧縮ウレタン
フォーム、熱エンボスウレタンフォームなどの発泡体、
低密度で嵩高な短繊維不織布およびこれらの発泡体と不
織布を組合わせものなどが挙げられる。発泡体として
は、ヘタリが少なく、回復性に優れたウレタンフォーム
が好ましく、連続発泡型の軟質、半硬質の発泡体は吸音
性に優れるためより好ましい。また不織布としては、ヘ
タリが少なく、回復性に優れ、かつ厚み方向に繊維が配
列され、低密度で嵩高なニードルパンチ加工された短繊
維不織布が好ましい。吸音材の厚さは２〜１２mmの範囲
が好ましく、その密度は０．０２〜０．２ｇ／cm3 の範
囲が好ましい。The sound-absorbing materials used in the present invention include urethane foams, heat-compressed urethane foams, hot embossed urethane foams and the like, which are used for wooden flooring materials having a high sound absorption such as L-50, 45 and 40. Foam,
A low-density and bulky short-fiber nonwoven fabric and a combination of these foams and a nonwoven fabric are exemplified. As the foam, a urethane foam having less settling and excellent recoverability is preferable, and a continuous foam type soft or semi-rigid foam is more preferable because of excellent sound absorption. Further, as the nonwoven fabric, a low-density and bulky needle-punched short-fiber nonwoven fabric which has little settling, has excellent recoverability, has fibers arranged in the thickness direction, and is low-density and bulky. The thickness of the sound absorbing material is preferably in the range of 2 to 12 mm, and the density thereof is preferably in the range of 0.02 to 0.2 g / cm 3 .
【０００８】本発明に用いられる補強シートは、接着剤
層と補強材シートを有し、該接着剤層と補強材シートの
間には合成樹脂フィルムを介在させることができる。接
着剤層には、吸音材や補強材シートへの接着剤の染み込
みを防止し、また製造工程数の低減を図る点から、ホッ
トメルト系接着剤を用いるのが好ましい。該接着剤層の
接着剤としてはビカット軟化点〔ＪＩＳ−Ｋ−７２０
６〕（融点）が、１８０℃以下、好ましくは３０〜１６
０℃の軟化点を有するもの、例えば、エチレン−酢酸ビ
ニル共重合樹脂、ポリアミド系樹脂、直鎖状ポリエステ
ル樹脂、線状低密度ポリエチレン樹脂、ポリオレフィン
系共重合樹脂、ポリエチレン樹脂、ポリオレフィン系共
重合体、ゴム系エラストマー、ウレタン樹脂系エラスト
マーまたはこれらの混合物などを用いるのが好ましい。The reinforcing sheet used in the present invention has an adhesive layer and a reinforcing material sheet, and a synthetic resin film can be interposed between the adhesive layer and the reinforcing material sheet. It is preferable to use a hot-melt adhesive for the adhesive layer in order to prevent the adhesive from penetrating into the sound absorbing material or the reinforcing material sheet and to reduce the number of manufacturing steps. As an adhesive for the adhesive layer, a Vicat softening point [JIS-K-720]
6] (melting point) 180 ° C. or less, preferably 30 to 16
Those having a softening point of 0 ° C., for example, ethylene-vinyl acetate copolymer resin, polyamide resin, linear polyester resin, linear low-density polyethylene resin, polyolefin copolymer resin, polyethylene resin, polyolefin copolymer It is preferable to use a rubber-based elastomer, a urethane resin-based elastomer, or a mixture thereof.
【０００９】補強材シートには、合成樹脂フィルムのテ
ープ状織物、テープヤーンクロス、ワリフ、ネットおよ
び不織布などが用いられる。不織布としては、例えばポ
リエチレン、ポリプロピレンなどのポリオレフィン繊
維、ポリエステル繊維、ポリアミド繊維、これらの複合
繊維または共重合繊維などの単一または２種以上からな
る短繊維、長繊維またはこれらの混合繊維を、公知の方
法のスパンボンド法、ニードルパンチ法、サーマルボン
ド法などにより得られる不織布を用いることができる。
これらのうち、厚みが薄く、強度の高い、スパンボンド
法による部分熱圧着の長繊維不織布が好ましく用いられ
る。As the reinforcing material sheet, a tape-like woven fabric of a synthetic resin film, a tape yarn cloth, a warif, a net, a nonwoven fabric, and the like are used. As the nonwoven fabric, for example, polyolefin fibers such as polyethylene, polypropylene, and the like, polyester fibers, polyamide fibers, short fibers made of single or two or more kinds thereof such as composite fibers or copolymer fibers, long fibers or mixed fibers thereof are known. The nonwoven fabric obtained by the spun bond method, the needle punch method, the thermal bond method or the like of the above method can be used.
Among them, a long-fiber nonwoven fabric having a small thickness and high strength, which is partially thermocompression-bonded by a spun bond method, is preferably used.
【００１０】補強材シートとしては厚みが薄く、強度の
高いものほど好ましいが、通常は、厚さが０．０５〜
０．５mm、好ましくは０．０８〜０．３mm、目付が１０
〜５０ｇ／ｍ2 、好ましくは１２〜４０ｇ／ｍ2 、引張
強力が０．５kg／５cm以上、好ましくは１．０kg／５cm
以上の補強材が用いられる。上記接着剤層と補強材シー
トの間に合成樹脂フィルムを介在させる場合には、該合
成樹脂フィルムには、厚みが５〜５０μｍ、好ましくは
１０〜３０μｍのポリエチレンフィルム、ポリプロピレ
ンフィルムなどを用いることができる。また補強材シー
トには、吸音性能、ユーザー等を区分するために着色し
てもよい。着色は、織物や不織布の原料を着色する方
法、補強シートとした後に補強材シートにグラビア印刷
する方法、接着剤層を着色する方法などにより行うこと
ができる。As the reinforcing material sheet, a material having a small thickness and a high strength is preferable.
0.5 mm, preferably 0.08 to 0.3 mm, with a basis weight of 10
５０50 g / m 2 , preferably 12-40 g / m 2 , and a tensile strength of 0.5 kg / 5 cm or more, preferably 1.0 kg / 5 cm
The above reinforcing materials are used. When a synthetic resin film is interposed between the adhesive layer and the reinforcing material sheet, the synthetic resin film may be a polyethylene film or a polypropylene film having a thickness of 5 to 50 μm, preferably 10 to 30 μm. it can. Further, the reinforcing material sheet may be colored in order to distinguish sound absorbing performance, users, and the like. The coloring can be performed by a method of coloring the raw material of the woven or nonwoven fabric, a method of gravure printing the reinforcing material sheet after forming the reinforcing sheet, a method of coloring the adhesive layer, and the like.
【００１１】接着剤層と補強材シートからなる２層タイ
プの補強シートは、例えば、補強材シートにホットメル
ト系樹脂を押出しラミネートすることにより、または補
強材にホットメルト系樹脂を塗布することにより得るこ
とができる。また接着剤層、合成樹脂フィルムおよび補
強材シートからなる３層タイプの補強シートは、例え
ば、合成樹脂とホットメルト系樹脂とを別々のＴダイま
たは１つのＴダイを用いてフィルム化し、冷却する前の
合成樹脂フィルム面に補強材を重ねて貼り合わせる共押
出しラミネート方法、タンデムラミネート機により補強
材を連続的に供給しながら、まず合成樹脂を押出し、続
いてホットメルト系樹脂を押出す方法、合成樹脂フィル
ムの一方の面にホットメルト系樹脂を塗布した後、該フ
ィルムの他面に接着剤を用いて補強材をラミネートする
方法などにより得ることができる。A two-layer type reinforcing sheet composed of an adhesive layer and a reinforcing material sheet is prepared by, for example, extruding and laminating a hot-melt resin on the reinforcing material sheet, or applying a hot-melt resin to the reinforcing material. Obtainable. In addition, a three-layer type reinforcing sheet including an adhesive layer, a synthetic resin film, and a reinforcing material sheet is formed into a film by using a separate T-die or one T-die for a synthetic resin and a hot-melt resin, and then cooling. A co-extrusion laminating method in which a reinforcing material is laminated on the previous synthetic resin film surface and bonded, a method of extruding a synthetic resin first while continuously supplying a reinforcing material by a tandem laminating machine, and subsequently extruding a hot melt resin, It can be obtained by applying a hot melt resin to one surface of a synthetic resin film, and then laminating a reinforcing material to the other surface of the film using an adhesive.
【００１２】ホットメルト系接着剤は、補強材シートま
たは合成樹脂フィルムの全面にフィルム状、繊維状、粉
末状に塗布して設けてもよいが、スジ状、ドット状など
に部分的に塗布したものであってもよい。上記２層タイ
プの補強シートは、床用緩衝材とコンクリートスラブ床
面との接着性の改善が主目的の場合に好ましく用いられ
る。また３層タイプの補強シートは、床用緩衝材の防水
性、防湿性およびコンクリートスラブ床面との接着性を
改善する場合に好ましく用いられる。The hot-melt adhesive may be applied in the form of a film, fiber or powder over the entire surface of the reinforcing material sheet or the synthetic resin film, but may be applied partially in the form of stripes or dots. It may be something. The two-layer type reinforcing sheet is preferably used when the main purpose is to improve the adhesion between the floor cushioning material and the concrete slab floor surface. Further, the three-layer type reinforcing sheet is preferably used when the waterproofness and moisture-proofness of the cushioning material for floors and the adhesiveness to the concrete slab floor surface are improved.
【００１３】本発明における床用緩衝材は、吸音材の少
なくとも片面に補強シートの接着剤層面を重ね合わせた
後、ビガット軟化点３０℃以上に加熱できる熱風ゾーン
で予熱し、一対のロール間隙または加熱ロール間隙等を
通過させて、該接着剤層の接着剤を軟化または溶融させ
る加熱、加圧を施した後、冷却することにより製造する
ことができる（加熱、加圧は、吸音材と補強シートとを
積層した厚みの３０〜９０％にロール間隙等を設定して
接合される。）。この接合は吸音材表面と接着剤層の表
面同士の接合となり、吸音材の内部にホットメルト樹脂
が染み込むことがなく、従って、吸音材の吸音性が低下
することがなく、高い吸音性を維持することができる。
また積層、加熱、加圧、冷却という簡単な工程で製造す
ることができるため、加工設備費、加工機設置面積、加
工期間、加工コスト等の低減を図ることができる。[0013] The floor cushioning material of the present invention is obtained by superposing the adhesive layer surface of the reinforcing sheet on at least one surface of the sound absorbing material and then preheating in a hot air zone capable of heating to a vigat softening point of 30 ° C or higher, and a pair of roll gaps or It can be manufactured by applying heat and pressure to soften or melt the adhesive in the adhesive layer by passing through a heating roll gap or the like, and then cooling it. The sheet is joined with a roll gap or the like set at 30 to 90% of the thickness of the laminated sheet.) In this bonding, the surface of the sound absorbing material and the surface of the adhesive layer are bonded to each other, so that the hot melt resin does not penetrate into the sound absorbing material, so that the sound absorbing material does not decrease in sound absorbing property and maintains high sound absorbing property. can do.
In addition, since it can be manufactured by simple processes such as lamination, heating, pressurization, and cooling, it is possible to reduce processing equipment cost, processing machine installation area, processing period, processing cost, and the like.
【００１４】本発明における木質系防音床材は、上記床
用緩衝材の吸音材面と木質系基材の裏面とを接着剤を用
いて接合することにより得ることができる。木質系基材
としては合板、パーティクルボードなどの公知のものが
用いられ、その厚さは４〜１２mmの範囲が好ましい。ま
た木質系基材には剛性および吸音性を改善するために、
裏面に貫通しない程度の切溝を形成するのが好ましい。
このときの切溝は幅１〜１０mm、深さは厚みの３０〜８
０％、間隔は５〜３０mmとするのが好ましい。またこの
ときの接着剤には酢酸ビニル樹脂エマルジョン等が用い
られる。本発明における木質系防音床材は、上記した効
果を有するとともに、その裏面が補強材シートで構成さ
れているため、コンクリートスラブ床面との接着性に優
れ、高い接着強度が得られ、施工時または施工後に床材
が剥がれるを防止することができる。The wooden sound-insulating flooring material of the present invention can be obtained by joining the sound absorbing material surface of the above-mentioned floor cushioning material and the back surface of the wooden base material using an adhesive. Known materials such as plywood and particle board are used as the wood base material, and the thickness thereof is preferably in the range of 4 to 12 mm. In addition, in order to improve rigidity and sound absorption properties,
It is preferable to form a kerf on the back surface that does not penetrate.
The kerf at this time has a width of 1 to 10 mm and a depth of 30 to 8 of the thickness.
0% and the interval is preferably 5 to 30 mm. At this time, a vinyl acetate resin emulsion or the like is used as the adhesive. The wood-based soundproof flooring material of the present invention has the above-mentioned effects, and since the back surface thereof is formed of the reinforcing material sheet, it has excellent adhesiveness to the concrete slab floor surface, high adhesive strength is obtained, and Alternatively, it is possible to prevent the floor material from peeling off after construction.
【００１５】[0015]
【実施例】以下、本発明を実施例により具体的に説明す
るが、本発明はこれに限定されるものではない。 実施例１ 吸音材としては、熱圧縮エンボス加工（凹凸形状）が施
された厚さ４mm、密度３０ｋｇ／ｍ3 の連続発泡型ウレ
タンフォームを用いた。補強シートとしては、目付２５
ｇ／ｍ2 、厚み０．１２mmのポリエステルスパンボンド
を補強材シートの片面に、ポリエチレンフィルム１０μ
ｍの合成樹脂フィルムと、エチレン−酢酸ビニルコポリ
マー２０μｍ（ビガット軟化点４９℃のホットメルト系
接着剤）の接着剤層を共押出しラミネート加工して得ら
れたものを用いた。床用緩衝材は、上記吸音材と補強シ
ートの接着剤層とを重ねて積層した後、一対の熱ロール
（ロール間隙２．５mm、設定温度１２０℃）で加熱・加
圧した後、冷却して製造した。また木質系防音床材は、
上記の床用緩衝材の吸音材面に、厚み９mmの溝加工化粧
合板の裏面を接着剤（酢酸ビニル樹脂エマルジョン）を
用いて貼り合わせて製造した。EXAMPLES The present invention will be described below in more detail with reference to examples, but the present invention is not limited to these examples. Example 1 As a sound absorbing material, a continuous foam type urethane foam having a thickness of 4 mm and a density of 30 kg / m 3 , which was subjected to a heat compression embossing process (irregular shape), was used. The basis weight of the reinforcing sheet is 25
g / m 2 , 0.12 mm thick polyester spunbond on one side of the reinforcing material sheet, polyethylene film 10μ
m, and an adhesive layer of an ethylene-vinyl acetate copolymer 20 μm (hot melt adhesive having a vigat softening point of 49 ° C.) was obtained by co-extrusion and lamination. The floor cushioning material is formed by laminating the sound absorbing material and the adhesive layer of the reinforcing sheet on top of each other, heating and pressing with a pair of hot rolls (roll gap 2.5 mm, set temperature 120 ° C.), and then cooling. Manufactured. In addition, wood-based soundproof flooring,
The back surface of the grooved decorative plywood having a thickness of 9 mm was bonded to the sound absorbing material surface of the floor cushioning material using an adhesive (vinyl acetate resin emulsion).
【００１６】実施例２ 吸音材としては、繊径１０デニール、繊維長５１mmのポ
リエステル繊維５５重量％、繊径４０デニール、繊維長
５１mmのポリエステル繊維４５重量％からなる混合短繊
維でカードウエブを形成した後、ニードルパンチ加工し
て得られた、目付２００ｇ／ｍ2 、厚み５mm、みかけ密
度０．０４ｇ／cm3 の低密度で嵩高な短繊維不織布を用
いた。補強シートとしては実施例１と同様のものを用い
た。床用緩衝材および木質系防音床材は実施例１と同様
にして製造した。Example 2 A card web was formed by using a mixed short fiber composed of 55% by weight of polyester fiber having a fiber diameter of 10 denier and 51 mm in fiber length and 45% by weight of polyester fiber having a fiber diameter of 40 denier and 51 mm in fiber length as a sound absorbing material. After that, a low-density and bulky short-fiber nonwoven fabric having a basis weight of 200 g / m 2 , a thickness of 5 mm, and an apparent density of 0.04 g / cm 3 obtained by needle punching was used. The same reinforcing sheet as in Example 1 was used. The floor cushioning material and the wooden soundproof flooring material were manufactured in the same manner as in Example 1.
【００１７】比較例１、２ 目付２５ｇ／ｍ2 のポリエステル・スパンボンド不織布
の片表面にポリエチレンをＴダイにて押出しラミネート
加工して２０μｍのポリエチレンフィルムを貼り合わ
せ、その後、該不織布の他方の面に実施例１、２で用い
たそれぞれの吸音材を酢酸ビニル系またはアクリル酸エ
ステル系エマルジョン接着剤を用いて貼り合わせて床用
緩衝材を製造し、さらに実施例１と同様にして木質系防
音床材を製造した。得られた各木質系防音床材をＪＩＳ
−Ａ−１４１８に従い、軽量床衝撃音の遮音レベルを測
定し、その結果を表１および図３に示した。Comparative Examples 1 and 2 Polyethylene is extruded with a T-die onto one surface of a polyester spunbond nonwoven fabric having a basis weight of 25 g / m 2 , laminated with a 20 μm polyethylene film, and then the other surface of the nonwoven fabric is produced. Then, the respective sound absorbing materials used in Examples 1 and 2 were bonded to each other using a vinyl acetate-based or acrylate-based emulsion adhesive to produce a floor cushioning material. Flooring was manufactured. Each of the obtained wooden soundproof flooring materials was JIS
-A-1418, the sound insulation level of the light floor impact sound was measured, and the results are shown in Table 1 and FIG.
【００１８】[0018]
【表１】 ※オクターブ帯域中心周波数（Ｈｚ）[Table 1] * Octave band center frequency (Hz)
【００１９】表１および図３から、実施例１、２で得ら
れた木質系防音床材では、比較例１、２のものに比べて
吸音性に優れることが示される。また、実施例１および
２の木質系防音床材の吸音材と補強シートの接合部を強
制的に剥離したところ、いずれも吸音材への接着剤の染
み込みがみられず、かつ吸音材への接着力が良好であ
り、材料破壊傾向が見られた。これに対し、比較例１お
よび２の木質系防音床材の吸音材と不織布およびポリエ
チレンフィルムからなる複合品の接合部を強制的に剥離
したところ、吸音材内部への接着剤の浸透が著しく、吸
音材の硬化現象が見られ、かつ接着強力が弱く、界面剥
離傾向が見られた。Table 1 and FIG. 3 show that the wood-based soundproof flooring materials obtained in Examples 1 and 2 are more excellent in sound absorption than those of Comparative Examples 1 and 2. In addition, when the joint between the sound absorbing material and the reinforcing sheet of the wood-based sound insulating flooring materials of Examples 1 and 2 was forcibly peeled off, no penetration of the adhesive into the sound absorbing material was observed in any case, and the sound absorbing material was not removed. The adhesive strength was good, and the material had a tendency to break. On the other hand, when the joint between the sound absorbing material of the wood-based sound insulating flooring materials of Comparative Examples 1 and 2 and the composite product comprising the nonwoven fabric and the polyethylene film was forcibly peeled off, the penetration of the adhesive into the sound absorbing material was remarkable, A curing phenomenon of the sound absorbing material was observed, the adhesive strength was weak, and an interfacial peeling tendency was observed.
【００２０】実施例３、４および比較例３、４ 実施例１および２で得られた木質系防音床材（実施例
３、４）をそれぞれポリウレタン系接着剤を１００ｇ／
ｍ2 塗布し、厚さ１５０mmの下地コンクリートスラブ面
に接着し、ＪＩＳ−Ａ−１４１８に準じて軽量床衝撃音
の遮音レベルを測定し、その結果を図４に示した。また
比較例３、４として、実施例１で用いた吸音材（比較例
３）および実施例２で用いた吸音材（比較例４）を、そ
れぞれ厚み９mmの溝加工化粧合板の裏面に貼り合わせて
木質系防音床材を製造し、さらに上記と同様にして下地
コンクリートスラブ面に接着し、同様の遮音レベルを測
定し、その結果を表２および図４に示した。Examples 3 and 4 and Comparative Examples 3 and 4 Each of the wooden soundproof flooring materials obtained in Examples 1 and 2 (Examples 3 and 4) was coated with 100 g of a polyurethane adhesive.
m 2 was applied and adhered to the surface of a 150 mm thick base concrete slab, and the sound insulation level of light floor impact sound was measured according to JIS-A-1418. The results are shown in FIG. As Comparative Examples 3 and 4, the sound absorbing material used in Example 1 (Comparative Example 3) and the sound absorbing material used in Example 2 (Comparative Example 4) were each bonded to the back surface of a 9 mm thick grooved decorative plywood. In this manner, a wood-based sound-insulating floor material was manufactured, and further adhered to the underlying concrete slab surface in the same manner as above, and the same sound insulation level was measured. The results are shown in Table 2 and FIG.
【００２１】[0021]
【表２】 ※オクターブ帯域中心周波数（Ｈｚ）[Table 2] * Octave band center frequency (Hz)
【００２２】表２および図４から明らかなように、本発
明の木質系防音床材では、吸音材とコンクリートスラブ
面の間にポリエチレンフィルムが存在するため、施工時
の接着剤の浸透防止効果が得られ、吸音性の低下がな
く、良好な結果が得られた。またこのポリエチレンフィ
ルムが防湿層として作用するため、湿気が吸音材に通過
して木質基材を変形させたり、接着力を低下させること
がない。さらにコンクリートスラブ面と接触する面が不
織布であるため、高い接着強度が得られ、施工時や施工
後に剥離することがない。これに対し、補強シートを使
用しない比較例３、４の場合には、吸音材への接着剤の
染み込みが著しく、吸音性が著しく低下する傾向にあっ
た（約１ランクダウン：５ｄＢ）。As is apparent from Table 2 and FIG. 4, in the wood-based sound-insulating flooring material of the present invention, the polyethylene film is present between the sound-absorbing material and the concrete slab surface. As a result, good results were obtained without a decrease in sound absorption. In addition, since the polyethylene film acts as a moisture-proof layer, moisture does not pass through the sound absorbing material to deform the wooden base material or reduce the adhesive strength. Furthermore, since the surface in contact with the concrete slab surface is a nonwoven fabric, high adhesive strength is obtained, and there is no peeling during or after construction. On the other hand, in the case of Comparative Examples 3 and 4 in which the reinforcing sheet was not used, the penetration of the adhesive into the sound absorbing material was remarkable, and the sound absorbing properties tended to be remarkably reduced (approximately one rank down: 5 dB).
【００２３】[0023]
【発明の効果】本発明の床用緩衝材によれば下記に示す
優れた効果を得ることができる。 (1) コンクリートスラブ面に接する面が補強材シートで
あるため、コンクリートスラブ面との接着力を向上させ
ることができる。 (2) 吸音材と補強材シートまたは合成樹脂フィルムとを
接着する接着剤層としてホットメルト系樹脂層を使用す
ることにより、吸音材への接着剤の染み込みを防止する
ことができ、吸音性能の低下を防止することができる。 (3) ホットメルト系樹脂層と補強材シートを有する補強
シートを予め製造しておくことにより、吸音材との積
層、加熱、加圧という簡単な工程で製造することがで
き、コスト低減を図ることができる。 (4) 接着剤層と補強材シートの間に合成樹脂フィルムを
介在させることにより、コンクリートスラブ面からの吸
湿を防止できるため、木質基材の変形や剥離を防ぐこと
ができるとともに、コンクリートスラブ面への施工時の
接着剤の吸音材への染み込みを防止することができ、高
い吸音性が得られる。According to the cushioning material for floors of the present invention, the following excellent effects can be obtained. (1) Since the surface in contact with the concrete slab surface is the reinforcing material sheet, the adhesive strength with the concrete slab surface can be improved. (2) By using a hot-melt resin layer as an adhesive layer that bonds the sound absorbing material and the reinforcing material sheet or the synthetic resin film, it is possible to prevent the penetration of the adhesive into the sound absorbing material, and to improve the sound absorbing performance. The drop can be prevented. (3) By manufacturing a reinforcing sheet having a hot-melt resin layer and a reinforcing material sheet in advance, it can be manufactured in a simple process of laminating with a sound absorbing material, heating and pressing, thereby reducing costs. be able to. (4) By interposing a synthetic resin film between the adhesive layer and the reinforcing material sheet, moisture absorption from the concrete slab surface can be prevented, so that deformation and peeling of the wooden base material can be prevented and the concrete slab surface can be prevented. It is possible to prevent the adhesive from permeating into the sound absorbing material at the time of construction, and high sound absorbing properties can be obtained.
【図１】本発明の一実施例を示す床用緩衝材の断面図。FIG. 1 is a sectional view of a cushioning material for a floor showing one embodiment of the present invention.
【図２】本発明の他の実施例を示す床用緩衝材の断面
図。FIG. 2 is a sectional view of a cushioning material for a floor showing another embodiment of the present invention.
【図３】木質系防音床材の遮音レベルを示す図。FIG. 3 is a diagram showing a sound insulation level of a wooden soundproof floor material.
【図４】下地コンクリートスラブ面に接着した木質系防
音床材の遮音レベルを示す図。FIG. 4 is a diagram showing a sound insulation level of a wood-based sound-insulating flooring material adhered to a ground concrete slab surface.
１…床用緩衝材、２…吸音材、３…接着剤層（ホットメ
ルト系樹脂層）、４…補強材シート（不織布）、５…補
強シート、６…空隙、７…合成樹脂フィルム。DESCRIPTION OF SYMBOLS 1 ... Buffer material for floors, 2 ... Sound absorbing material, 3 ... Adhesive layer (hot melt resin layer), 4 ... Reinforcement sheet (nonwoven fabric), 5 ... Reinforcement sheet, 6 ... Void, 7 ... Synthetic resin film.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 岩崎 博文 大阪府高槻市八丁畷町11番７号 旭化成工 業株式会社内 (72)発明者 中山 誉志美 大阪府高槻市八丁畷町11番７号 旭化成工 業株式会社内 (72)発明者 辻 義之 大阪府大阪市北区小松原町２番４号 椿本 興業株式会社内 (72)発明者 峰松 和作 広島県府中市高木町1080番地 ヤスハラケ ミカル株式会社内 Ｆターム(参考） 4F100 AK04D AK22G AK41A AK51B AK68G AP00C AP02C AR00B AT00A BA03 BA04 BA07 CB00 CB03 DG15A EJ39B GB08 JD04 JD05 JH01B JM01G ──────────────────────────────────────────────────続 き Continuing from the front page (72) Inventor Hirofumi Iwasaki 11-7 Hatchowate-cho, Takatsuki-shi, Osaka Asahi Kasei Corporation (72) Inventor Takashi Nakayama 11-7 Hatcho-nawate-cho, Takatsuki-shi, Osaka (72) Inventor Yoshiyuki Tsuji 2-4 Komatsubara-cho, Kita-ku, Osaka City, Osaka Prefecture Inside Tsubakimoto Kogyo Co., Ltd. (72) Inventor Kazusaku Minematsu 1080, Takagicho, Fuchu-shi, Hiroshima, Japan Terms (reference) 4F100 AK04D AK22G AK41A AK51B AK68G AP00C AP02C AR00B AT00A BA03 BA04 BA07 CB00 CB03 DG15A EJ39B GB08 JD04 JD05 JH01B JM01G
Claims (5)
れた補強シートを、前記接着剤層を介して吸音材の少な
くとも片面に接合してなることを特徴とする床用緩衝
材。1. A floor cushioning material wherein a reinforcing sheet obtained by forming an adhesive layer on a reinforcing material sheet is joined to at least one surface of a sound absorbing material via the adhesive layer.
あることを特徴とする請求項１記載の床用緩衝材。2. The floor cushioning material according to claim 1, wherein the adhesive layer is a hot-melt resin layer.
トの間に合成樹脂フィルムを介在させたことを特徴とす
る請求項１または２記載の床用緩衝材。3. The cushioning material for floors according to claim 1, wherein a synthetic resin film is interposed between the adhesive layer of the reinforcing sheet and the reinforcing material sheet.
特徴とする請求項１〜３のいずれかに記載の床用緩衝
材。4. The floor cushioning material according to claim 1, wherein the reinforcing material sheet is a nonwoven fabric.
衝材の吸音材面を、木質系基材の裏面に接合したことを
特徴とする木質系防音床材。5. A wood-based sound-insulating flooring, wherein the sound-absorbing material surface of the floor cushioning material according to any one of claims 1 to 4 is joined to a back surface of a wood-based base material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP05887199A JP4201296B2 (en) | 1999-03-05 | 1999-03-05 | Floor cushioning material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP05887199A JP4201296B2 (en) | 1999-03-05 | 1999-03-05 | Floor cushioning material |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2000257248A true JP2000257248A (en) | 2000-09-19 |
| JP2000257248A5 JP2000257248A5 (en) | 2006-04-20 |
| JP4201296B2 JP4201296B2 (en) | 2008-12-24 |
Family
ID=13096820
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP05887199A Expired - Lifetime JP4201296B2 (en) | 1999-03-05 | 1999-03-05 | Floor cushioning material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP4201296B2 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003175558A (en) * | 2001-09-07 | 2003-06-24 | Mitsui Chemicals Inc | Laminated sheet and manufacturing method thereof |
| JP2006035440A (en) * | 2004-07-22 | 2006-02-09 | Daiken Trade & Ind Co Ltd | Manufacturing method of base material for decorative sheet and decorative sheet using the base material |
| JP2014012947A (en) * | 2012-07-04 | 2014-01-23 | Fukuvi Chem Ind Co Ltd | Floor material with sound insulating property, and floor structure using the same |
| JP2015218543A (en) * | 2014-05-21 | 2015-12-07 | パナソニックＩｐマネジメント株式会社 | Direct flooring material |
| JP2016539259A (en) * | 2013-10-11 | 2016-12-15 | ヴェーぺーテー ゲーエムベーハーＷＰＴ ＧｍｂＨ | Elastic floor panels |
-
1999
- 1999-03-05 JP JP05887199A patent/JP4201296B2/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003175558A (en) * | 2001-09-07 | 2003-06-24 | Mitsui Chemicals Inc | Laminated sheet and manufacturing method thereof |
| JP2006035440A (en) * | 2004-07-22 | 2006-02-09 | Daiken Trade & Ind Co Ltd | Manufacturing method of base material for decorative sheet and decorative sheet using the base material |
| JP2014012947A (en) * | 2012-07-04 | 2014-01-23 | Fukuvi Chem Ind Co Ltd | Floor material with sound insulating property, and floor structure using the same |
| JP2016539259A (en) * | 2013-10-11 | 2016-12-15 | ヴェーぺーテー ゲーエムベーハーＷＰＴ ＧｍｂＨ | Elastic floor panels |
| JP2015218543A (en) * | 2014-05-21 | 2015-12-07 | パナソニックＩｐマネジメント株式会社 | Direct flooring material |
Also Published As
| Publication number | Publication date |
|---|---|
| JP4201296B2 (en) | 2008-12-24 |
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