JP2009150138A - Floor cushioning material - Google Patents
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- JP2009150138A JP2009150138A JP2007329559A JP2007329559A JP2009150138A JP 2009150138 A JP2009150138 A JP 2009150138A JP 2007329559 A JP2007329559 A JP 2007329559A JP 2007329559 A JP2007329559 A JP 2007329559A JP 2009150138 A JP2009150138 A JP 2009150138A
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Abstract
Description
本発明はマンション，一戸建て等において使用されているフローリング材等に直貼りしてフローリング等の断熱と防音を補助する床緩衝材に関するものである。 The present invention relates to a floor cushioning material that is directly attached to a flooring material or the like used in an apartment, a detached house, etc., and assists heat insulation and soundproofing of the flooring and the like.
フローリングや階段回りなどの木質床、クッションフロア，カーペット等の床下地材に直貼りして用いられる緩衝材として従来、クッション性や緩衝性に優れた不織布，ウレタン，ゴム，ゴム発泡体，オレフィン樹脂発泡体等が知られており、かつ種々の提案がなされている。（例えば特許文献１，２，３参照）
例えば特許文献１では床板基板の裏面に硬さが１０〜４０ｋｇの発泡シートを緩衝材として貼着した防音床材が、また特許文献２では２５％圧縮硬さが０．０１〜２ｋｇ／ｃｍ2である貫通孔を開口率が１０〜７０％になるように形成され、貫通孔が発泡シートの厚み方向の垂直軸に対して角度を有するように傾けられている床用防音シートが提案されていると共に、特許文献３には高融点繊維と熱融着性繊維からなる繊維層の目付質量を５０〜４００ｇ／ｍ2、初期圧縮弾性率を０．１〜５．０Ｎ／ｃｍ2・１００％，圧縮変形量を１．０〜３．０ｍｍの範囲として防音と床面の踏み心地のよい床緩衝材を提供することが記載されている。
Conventional non-woven fabric, urethane, rubber, rubber foam, olefin resin with excellent cushioning and cushioning properties as cushioning material that is used directly on flooring materials such as wooden floors such as flooring and staircases, cushion floors, and carpets Foams and the like are known and various proposals have been made. (For example, see
For example,
しかし、特許文献１に記載された防音床材に用いられている緩衝材は発泡シートであり、踏み込み時の感触については充分でなく、また特許文献２に記載されている防音シートも発泡シートで防音効果については充分考慮されているが、施工ならびに踏み込み時の感触については必らずしも充分でない。
However, the cushioning material used in the soundproofing floor material described in
一方、特許文献３に記載されている緩衝材は、本出願人の提案であり、その目的，効果については共通しているが、特許文献３のものは繊維層のみであって発泡シートと繊維層を積層した積層体とは構成が異なっており、従って積層体をコンクリートと床材の間に施工するときの施工性については考慮されていない。
本発明は上述の如き実状に対処し、特に発泡シートと短繊維層からなる緩衝材に着目し、ニードリングを施すことにより発泡シートに短繊維層構成単繊維の貫通する孔を形成し、該孔を通して単繊維を適数、表面に叢出せしめると共に、有効特性値を見出して踏み心地がよく、防音性性に優れると共に施工性をも良好ならしめることを目的とするものである。 The present invention addresses the actual situation as described above, particularly focusing on a cushioning material composed of a foam sheet and a short fiber layer, and forming a hole through which the single fiber constituting the short fiber layer is formed in the foam sheet by needling, The purpose is to allow an appropriate number of single fibers to sprinkle on the surface through the holes, to find effective characteristic values, to have a good footing comfort, to have excellent soundproofing properties and to improve workability.
即ち、上記目的に適合する本発明床緩衝材は、発泡シートと短繊維層とを積層し、ニードリングにより一体化して短繊維層の単繊維が発泡シートを垂直に貫通してなる積層体であって、前記発泡シートは単繊維が連通して貫通する孔の数が１５〜１００個／ｃｍ2であり、該積層体の通気度が４．０〜１０．０ｃｃ／ｃｍ2／ｓｅｃ、目付質量が１５０ｇ／ｍ2〜４００ｇ／ｍ2で初期圧縮弾性率が０．１〜５．０Ｎ／ｃｍ2・１００％、剥離強力が０．５〜１０．０Ｎ／５ｃｍであることを特徴とする。 That is, the floor cushioning material of the present invention suitable for the above purpose is a laminate in which a foam sheet and a short fiber layer are laminated and integrated by needling, and a single fiber of the short fiber layer vertically penetrates the foam sheet. there are, the foam sheet number of holes monofilament penetrates communicated is 15 to 100 pieces / cm 2, the air permeability of the laminate is 4.0~10.0cc / cm 2 / sec, basis weight mass 150g / m 2 ~400g / m 2 initial compression modulus 0.1~5.0N / cm 2 · 100%, the peel strength is characterized in that it is a 0.5~10.0N / 5cm .
ここで短繊維層としてはポリエステル，ナイロン，ポリエチレン，ポリプロピレンから選ばれた１種又は２種以上の混合繊維よりなる繊維層で、目付質量が７０〜２００ｇ／ｍ2であることが好ましく、発泡シートとしてはポリエチレン，ポリプロピレン，ポリ塩化ビニル，ポリウレタン，ポリスチレン及びゴムの何れかの発泡体が用いられ、その目付質量範囲が５０ｇ／ｍ2〜２００ｇ／ｍ2であることが効果的である。 Here, the short fiber layer is a fiber layer composed of one or more mixed fibers selected from polyester, nylon, polyethylene, and polypropylene, and preferably has a weight per unit area of 70 to 200 g / m 2. the polyethylene, polypropylene, polyvinyl chloride, polyurethane, or foam of polystyrene and rubber are used, it is effective that the basis weight mass range is 50g / m 2 ~200g / m 2 .
本発明床緩衝材は短繊維層と発泡シートとの積層構成で、発泡シートに単繊維の貫通する孔を１５〜１００個／ｃｍ2，該積層体の通気度を４．０〜１０．０ｃｃ／ｃｍ2／ｓｅｃ，積層体の目付質量が１５０〜４００ｇ／ｍ2の範囲で、初期圧縮弾性率を０．１〜５．０Ｎ／ｃｍ2・１００％，剥離強力を０．５〜１０Ｎ／５ｃｍの範囲としたものであり、貫通孔数，通気度を上記範囲とし、上記特性を具備させたことにより、防音，吸音の効果を奏すると共に、貫通孔に単繊維が連通することにより発泡シート表面に毛羽を叢生するためコンクリートスラブと床緩衝材の接着を改善し、施工性を高めることができ、また床に踏み込んだときの踏み心地をよくし、床ゆれを生じることを無くすると共に、フロア貼り付け作業時の作業性を良好ならしめることができる。 The floor cushioning material of the present invention has a laminated structure of a short fiber layer and a foamed sheet. The foamed sheet has 15 to 100 holes / cm 2 through which single fibers pass, and the air permeability of the laminated body is 4.0 to 10.0 cc. / Cm 2 / sec, the mass per unit area of the laminate is 150 to 400 g / m 2 , the initial compression elastic modulus is 0.1 to 5.0 N / cm 2 · 100%, and the peel strength is 0.5 to 10 N / The foam sheet has a range of 5 cm, the number of through-holes and the air permeability are in the above-mentioned ranges, and has the above-mentioned characteristics, thereby providing soundproofing and sound-absorbing effects, and the single fibers communicating with the through-holes. As the fluff grows on the surface, the adhesion between the concrete slab and the floor cushioning material can be improved, the workability can be improved, the stepping comfort when stepped on the floor is improved, and the occurrence of floor shaking is eliminated. Good workability during floor pasting work Can be conditioned.
以下、更に本発明床緩衝材の詳細について説明する。本発明は図１に示す如くフローリング床材１に床緩衝材２を直貼りしてコンクリートスラブ基体３上に接着使用するときに従来の不充分さを改善し踏み心地がよく、防音性能に優れ、施工性が良好な床緩衝材を提供するものである。
Hereinafter, the details of the floor cushioning material of the present invention will be described. In the present invention, as shown in FIG. 1, when
これまでの知見として、人が踏み心地のよい床の変形範囲は２．０ｍｍから３．０ｍｍと云われている。ここでは床の変形量（０．５ｍｍから２．０ｍｍ）が圧縮変形に関係すると考え、その対応として、一般の人が片足にかかる荷重（６０ｋｇ、２５ｃｍ）を単位面積あたりに換算して約０．４３ｋｇ／ｃｍ2（つま先半分では約０．８ｋｇ／ｃｍ2）としてこの荷重時の不織布の特性を適応範囲とすることにした。 As the knowledge so far, it is said that the deformation range of the floor where a person can comfortably step is 2.0 mm to 3.0 mm. Here, the amount of deformation of the floor (0.5 mm to 2.0 mm) is considered to be related to compression deformation, and as a countermeasure, the load (60 kg, 25 cm) applied to one leg by a general person is converted to about 0 per unit area. .43 kg / cm 2 (about 0.8 kg / cm 2 for the toe half) and the characteristic of the nonwoven fabric at the time of loading was determined to be an applicable range.
初期圧縮弾性率は踏み込み時の感覚の良さを示し、沈み込み量が踏み心地を示す。踏み込み時の感覚は初期圧縮弾性率が０．１Ｎ／ｃｍ2・１００％以下であると踏み込み時の足の裏の感覚が使用していないのと殆ど同じで効果は認められない。５Ｎ／ｃｍ2・１００％を超えると踏み込んだ時の足の裏の抵抗が硬く感じ好ましくない。そこで本発明においては、踏み心地がよく、床酔いを感じない、かつ防音性の低い領域の防音性を改善するために短繊維と発泡シートの構成として下記特性範囲で好適であることを見出した。 The initial compression elastic modulus indicates good feeling when depressing, and the amount of depression indicates the depressing feeling. If the initial compression elastic modulus is 0.1 N / cm 2 · 100% or less, the feeling at the time of depressing is almost the same as the feeling of the sole of the foot at the time of depressing, and no effect is recognized. If it exceeds 5 N / cm 2 · 100%, the resistance on the sole of the foot when pressed down is hard and undesirable. Therefore, in the present invention, it has been found that the constitution of the short fiber and the foamed sheet is suitable in the following characteristic range in order to improve the soundproofing property in the region where the comfort is good, the floor sickness is not felt, and the soundproofing property is low. .
即ち、構成が短繊維層と発泡シート積層体構成であって、発泡シートを貫通する孔に連通する単繊維が平均５本／孔以上である孔が平均１５個／ｃｍ2から１００個／ｃｍ2存在し、積層体の通気度が４．０〜１０．０ｃｃ／ｃｍ2／ｓｅｃであること、この発泡シートを貫通する単繊維は発泡シートの孔を通過する振動の一部を共鳴振動し、熱に変わるために吸音の効果が発生するものと考えられる。また、積層体の目付質量が１５０〜４００ｇ／ｍ2で初期圧縮弾性率は０．１Ｎ／ｃｍ2・１００％〜５Ｎ／ｃｍ2・１００％であること、剥離強力が０．５〜１０．０Ｎ／５ｃｍの範囲であることにより防音性能の優れた床緩衝材を得ることが出来る。
That is, the structure is a short fiber layer and foam sheet laminate structure, and the average number of single fibers communicating with the holes penetrating the foam sheet is 5 / hole or more, average 15 / cm 2 to 100 / cm 2 2 and the air permeability of the laminate is 4.0 to 10.0 cc / cm 2 / sec, and the single fiber that penetrates the foam sheet resonates and vibrates part of the vibration that passes through the holes of the foam sheet. It is considered that the effect of sound absorption occurs due to the change to heat. It basis weight mass of the laminate initial compressive modulus at 150 and 400 / m 2 is 0.1N / cm 2 · 100% ~5N /
これを更に順次詳述する。先ず本発明は図１に示す如く発泡シートＢと短繊維層Ａとの積層体を基本構成とするものである。短繊維層に使用される繊維としては、ポリエチレン，ポリプロピレン等のポリオレフィン系樹脂、ポリエステル等のポリエステル系樹脂，ナイロン等のポリアミド系樹脂等より紡出した繊維が挙げられ、その１種又は２種以上の混繊層が用いられる。特にポリエステル系樹脂から得られるポリエステル繊維は汎用品として安価であるので好ましい。 This will be further described in detail. First, as shown in FIG. 1, the present invention has a basic structure of a laminate of a foam sheet B and a short fiber layer A. Examples of fibers used for the short fiber layer include fibers spun from polyolefin resins such as polyethylene and polypropylene, polyester resins such as polyester, polyamide resins such as nylon, and the like, one or more of them. The mixed fiber layer is used. In particular, polyester fibers obtained from polyester resins are preferable because they are inexpensive as general-purpose products.
繊維の断面形状は丸断面、三角断面、多角断面等で中実、中空何れでもよく、特に限定するものではない。また、短繊維のウエブだけでは形態が容易に崩れ、取り扱いが難しい。そこで取り扱いに問題のない程度の繊維層を得るには繊維間の接着あるいは交絡処理を施す必要がある。これらの処理としては特に限定するものではないが、熱接着性繊維の混繊あるいはニードルパンチ加工処理が上げられる。なお、繊維繊度範囲は０．８〜１５デシテックス（ｄｔｅｘ）が汎用性から好ましい。また、短繊維層の目付質量範囲は７０〜２００ｇ／ｍ2の範囲がよく、７０ｇ／ｍ2未満では短繊維層としての床特性や吸音性能が発揮できなくなるので好ましくない。 The cross-sectional shape of the fiber may be a round cross section, a triangular cross section, a polygonal cross section, or the like, and may be solid or hollow, and is not particularly limited. Further, the shape easily collapses with a short fiber web alone and is difficult to handle. Therefore, in order to obtain a fiber layer having no problem in handling, it is necessary to perform adhesion or entanglement between fibers. These treatments are not particularly limited, and examples include heat-adhesive fiber blending or needle punching treatment. In addition, the fiber fineness range is preferably 0.8 to 15 dtex because of versatility. Also, the basis weight mass range of short fiber layer may have a range of 70~200g / m 2, undesirable floor properties and sound absorption performance of the short fiber layer can not be exhibited less than 70 g / m 2.
一方、２００ｇ／ｍ2を超えると短繊維層の効果が大きくなり、発泡シートとの関係で床への踏み込みが大きくなり、床酔いを起こし易くなるので好ましくない。それを防ぐためにニードル加工を強くすると発泡シートの気泡が破壊され防音性能が劣ることになる。 On the other hand, if it exceeds 200 g / m 2 , the effect of the short fiber layer is increased, the stepping into the floor is increased in relation to the foamed sheet, and floor sickness is likely to occur, which is not preferable. If needle processing is strengthened to prevent this, bubbles in the foam sheet are destroyed and the soundproofing performance is inferior.
次に本発明に用いられる発泡シートとしては、特に限定されないが、従来床用に使用されている独立気泡性または連続気泡性の気泡シートが使用され、例えばエチレンやプロピレンなどのオレフィン系樹脂からなる気泡シート、ウレタンや圧縮ウレタンなど、ウレタン系樹脂からなる発泡シート、ゴム発泡シートなどが挙げられる。 Next, the foamed sheet used in the present invention is not particularly limited, but a closed-celled or open-celled cell sheet that is conventionally used for floors is used, and it is made of, for example, an olefin resin such as ethylene or propylene. Examples thereof include a foam sheet made of urethane resin such as a bubble sheet, urethane and compressed urethane, and a rubber foam sheet.
発泡シートは当初より貫通する孔があってもよいが、積層後のニードルパンチにより貫通孔が形成されるので特にある必要はない。しかし、発泡シートにただ垂直の通気孔があるだけでは吸音の効果は少ない。この発泡シートの目付質量範囲は５０〜５００ｇ／ｍ2の範囲がよく、５０ｇ／ｍ2未満では発泡シートが薄いために防音の効果が充分発揮できない。２００ｇ／ｍ2を超えると吸音の効果は十分にあるが、踏み心地が劣るので好ましくない。そして、以上の短繊維層と発泡シートの積層体からなる緩衝材は床材に通常、短繊維層側が接着されるが、床緩衝材を床材に接着するために使用される接着剤としては、例えばアクリル樹脂系、酢酸ビニル樹脂系、ポリエステル樹脂系、ウレタン樹脂系，合成ゴム系のものが用いられる。 The foamed sheet may have a through-hole from the beginning, but it is not particularly necessary because the through-hole is formed by needle punching after lamination. However, the effect of sound absorption is small if there is only a vertical air hole in the foam sheet. The basis weight mass range of the foam sheet may have a range of 50 to 500 g / m 2, it is less than 50 g / m 2 can not be sufficiently exhibited the effect of sound insulation to the foamed sheet is thin. If it exceeds 200 g / m 2 , the sound absorbing effect is sufficient, but it is not preferable because the stepping comfort is inferior. And the cushioning material consisting of the laminate of the above short fiber layer and the foam sheet is usually bonded to the floor material on the short fiber layer side, but as an adhesive used to bond the floor cushioning material to the flooring material, For example, acrylic resin, vinyl acetate resin, polyester resin, urethane resin, and synthetic rubber are used.
以上のような短繊維層と発泡シートよりなる床緩衝材を形成するに当たっては、次のような工程が採用される。
（イ）短繊維をカーディング加工して均一開繊し、ウエブを作成する。
（ロ）作成したウエブをニードルパンチ加工にて繊維間の交絡処理をして短繊維層を得る。この場合、ニードルパンチの打ち込み数が多ければ強度は上がるが、多すぎると発泡シートの気泡を破壊するので、適度に打ち込むようにする。
（ハ）発泡シート上に得られた短繊維層を重ねて、針方向は繊維層から発泡シートに向けてニードルパンチ加工を施すことにより発泡シートに毛羽の連通した床緩衝材を得る。
In forming the floor cushioning material comprising the short fiber layer and the foamed sheet as described above, the following steps are employed.
(A) A short fiber is carded and uniformly spread to create a web.
(B) The woven web is entangled between fibers by needle punching to obtain a short fiber layer. In this case, the strength increases if the number of needle punches is large, but if it is too large, the bubbles in the foamed sheet are destroyed.
(C) The short fiber layer obtained on the foam sheet is stacked, and the needle cushioning is applied from the fiber layer to the foam sheet in the needle direction to obtain a floor cushioning material in which the foam sheet communicates with the fluff.
即ち、上記工程においてニードルパンチ加工は繊維間の交絡処理及び発泡シートに垂直な孔を開けると同時に短繊維層の単繊維を発泡シートに貫通させ発泡シート面に毛羽を発生させることと、短繊維層と発泡シートとの物理接着を達成する。 That is, in the above process, the needle punching process entangles the fibers and opens a hole perpendicular to the foam sheet, and at the same time penetrates the single fiber of the short fiber layer through the foam sheet to generate fuzz on the surface of the foam sheet; Achieve physical adhesion between the layer and the foam sheet.
本発明は以上のようにして得られた短繊維層と発泡シートの積層体で基本構成が作られるが、更に床緩衝材としての特性として、単繊維が発泡シートを連通して貫通する孔の数、積層体の通気度、目付質量、初期圧縮弾性率、剥離強力を夫々、特定範囲とすることが重要である。 In the present invention, a basic structure is made of a laminate of the short fiber layer and the foamed sheet obtained as described above, but, as a characteristic of the floor cushioning material, a hole through which the single fiber communicates with the foamed sheet is formed. It is important to set the number, the air permeability of the laminate, the mass per unit area, the initial compressive elastic modulus, and the peel strength within a specific range.
発泡シートを貫通する孔は、該孔に短繊維層を構成する単繊維が５本／孔以上を有する孔が平均１５個／ｃｍ2から１００個／ｃｍ2の範囲がよい。もし孔を通過して単繊維が平均５本／孔である孔が１５個／ｃｍ2未満では吸音の効果が少なくも孔を通過している単繊維が平均５本／孔以上である孔が１００個／ｃｍ2を超えると発泡シートの気泡が破壊される結果、吸音の効果が減少する。 Holes through the foam sheet, short fiber layer filaments constituting the average 15 / cm 2 from a good 100 / cm 2 in the range pores having 5 or more / holes in the hole. If there are less than 15 holes / cm 2 , the average number of single fibers passing through the holes is less than 15 / cm 2 , the average number of single fibers passing through the holes is less than 15 holes / cm 2. When the number exceeds 100 / cm 2 , the bubbles in the foamed sheet are destroyed, resulting in a reduction in the sound absorption effect.
なお、発泡シートを貫通する孔に単繊維が連通することにより発泡シートの表面に毛羽が叢生するためにコンクリートスラブと床緩衝材の接着が数段に改善される利点がある。しかし、発泡シートにただ垂直の通気孔があるだけでは吸音の効果が少ない。そして、通気度の範囲は貫通孔が１５〜１００個／ｃｍ2で、４．０〜１０．０ｃｃ／ｃｍ2／ｓｅｃの範囲がよく、４．０ｃｃ／ｃｍ2／ｓｅｃ未満では防音の効果は少なく、１０．０ｃｃ／ｃｍ2／ｓｅｃを超えると防音の効果は減少する。 In addition, there is an advantage that the adhesion between the concrete slab and the floor cushioning material is improved in several stages because the fluff is crowded on the surface of the foam sheet by the single fibers communicating with the holes penetrating the foam sheet. However, the effect of sound absorption is small if there is only a vertical air hole in the foam sheet. The range of air permeability in the through hole 15 to 100 pieces / cm 2, often in the range of 4.0~10.0cc / cm 2 / sec, is less than 4.0cc / cm 2 / sec effect of soundproofing If it exceeds 10.0 cc / cm 2 / sec, the soundproofing effect decreases.
また、緩衝材の目付質量としては１５０〜４００ｇ／ｍ2の範囲がよく、１５０ｇ／ｍ2未満では床材としてそれなりの床突き感は解消されるが、短繊維層の繊維が発泡シートを貫通する繊維が少ないために吸音性能が劣ることになり好ましくない。一方、４００ｇ／ｍ2を超えると緩衝材が厚いため床揺れを感じ易くなるので好ましくない。厚さの範囲は２．０〜１０．０ｍｍの範囲がよく、さらに３〜８ｍｍが好適である。２ｍｍ未満であると変形量が少ないため踏み心地の点から良くない。１０ｍｍを超えると防音性の効果はあるが、変化量が多いため床揺れが生じ、踏み心地が悪く好ましくない。 As the basis weight by weight of the cushioning material may in the range of 150 and 400 / m 2, but is less than 150 g / m 2 moderate floor thrust sensitive as a floor material is eliminated, through the fibers of the short fiber layer is a foam sheet Since there are few fibers to perform, sound absorption performance will be inferior, and it is not preferable. On the other hand, if it exceeds 400 g / m 2 , it is not preferable because the buffer material is thick, and it becomes easy to feel floor shaking. The range of the thickness is preferably from 2.0 to 10.0 mm, and more preferably from 3 to 8 mm. If it is less than 2 mm, the amount of deformation is small, so it is not good in terms of treading comfort. If it exceeds 10 mm, there is an effect of soundproofing, but since the amount of change is large, floor shaking occurs, and the foot comfort is not preferable.
そして、剥離強力は０．５〜１０．０Ｎ／５ｃｍの範囲がよい。０．５Ｎ／５ｃｍ未満では短繊維層と発泡シートが容易に剥離して床材張り合わせの作業性が悪くなるので好ましくない。１０．０Ｎ／５ｃｍを超えると床木材のフロアー貼り付け作業性は充分であり過剰性能となる。他方、発泡シートのダメージが大きくなり発泡シートにある気泡が破壊されてしまうので防音効果の面でよくない。 The peel strength is preferably in the range of 0.5 to 10.0 N / 5 cm. If it is less than 0.5 N / 5 cm, the short fiber layer and the foamed sheet are easily peeled off and the workability of laminating the flooring material is deteriorated. If it exceeds 10.0 N / 5 cm, the floor wood flooring workability is sufficient and excessive performance is obtained. On the other hand, since the damage to the foamed sheet is increased and the bubbles in the foamed sheet are destroyed, the soundproofing effect is not good.
床緩衝材の圧縮変形量は１．０〜３．０ｍｍが好適であり、踏み込み後の感覚は圧縮変形量が１．０ｍｍ未満では床突き感があって好ましくなく、圧縮変形量が３．０ｍｍを超えると変形量が多いため床揺れを感じ好ましくない。床緩衝材の密度は０．０１〜０．１ｇ／ｃｃが好適であり、０．０１ｇ／ｃｃ未満であると床を踏み込んだときの抵抗感がなく直接床の基礎に当たり、また、０．１ｇ／ｃｃを超えると床材自身が硬く、床の硬さを伝えるので好ましくない。そこで、これに対応し、初期圧縮弾性率は０．１Ｎ／ｃｍ2・１００％〜５Ｎ／ｃｍ2・１００％の範囲が効果的である。
The amount of compressive deformation of the floor cushioning material is preferably 1.0 to 3.0 mm, and the feeling after depression is not preferable because the floor deformation is less than 1.0 mm, and the amount of compressive deformation is 3.0 mm. Exceeding this is undesirable because the amount of deformation is large, and floor shaking is felt. The density of the floor cushioning material is preferably 0.01 to 0.1 g / cc, and if it is less than 0.01 g / cc, there is no resistance when the floor is stepped on and directly hits the foundation of the floor, and 0.1 g Exceeding / cc is not preferable because the flooring material itself is hard and conveys the hardness of the floor. Therefore, correspondingly, the initial compressive modulus 0.1N / cm 2 · 100% ~5N /
かくして以上の各特性を具備した床緩衝材は図示の如く短繊維層Ａ側を床剤に接着し、発泡シートＢ側をコンクリートスラブにその毛羽により接着性をよくして敷設し、フローリング材の踏み心地をよくし、防音、断熱を補助する。以下、本発明の実施例を比較例と併せて説明する。 Thus, the floor cushioning material having the above-mentioned characteristics is constructed by adhering the short fiber layer A side to the flooring agent as shown in the figure, and laying the foamed sheet B side on the concrete slab with good adhesion by the fuzz. Improves treading comfort, assists soundproofing and insulation. Examples of the present invention will be described below together with comparative examples.
実施例１
繊度２．２デシテックス（ｄｔｅｘ）、繊維長５４ｍｍのポリエステル繊維（融点：２６０℃）をカーディングして目付質量約１０５ｇ／ｍ2の短繊維ウエブとし、引き続き、表面側から深さ８ｍｍ、打ち込み本数３０本／ｃｍ2のニードルパンチ処理を施し、短繊維層を得た。この短繊維層を発泡シート（目付質量９５ｇ／ｍ2、厚さ３．６ｍｍ エチレン系樹脂独立発泡シート）に積層して短繊維層から発泡シートに向けて針深さ８ｍｍ、打ち込み本数３０本／ｃｍ2のニードルパンチ処理を施して一体化処理をして床緩衝材を得た。
実施例２
繊度２．２デシテックス（ｄｔｅｘ）、繊維長５４ｍｍのポリエステル繊維（融点：２６０℃）をカーディングして目付質量約１０４ｇ／ｍ2の短繊維ウエブとし、引き続き、表面側に深さ８ｍｍ、打ち込み本数３０本／ｃｍ2のニードルパンチ処理を施し、短繊維層を得た。この短繊維層を発泡シート（目付質量６３ｇ／ｍ2、厚さ２．７ｍｍ エチレン系樹脂独立発泡シート）に積層して短繊維層から発泡シートに向けて針深さ８ｍｍ、打ち込み本数３０本／ｃｍ2のニードルパンチ処理を施して一体化処理をして床緩衝材を得た。
実施例３
繊度２．２デシテックス（ｄｔｅｘ）、繊維長５４ｍｍのポリエステル繊維（融点：２６０℃）をカーディングして目付質量約２０９ｇ／ｍ2の短繊維ウエブとし、引き続き、表面側に深さ８ｍｍ、打ち込み本数３０本／ｃｍ2のニードルパンチ処理を施し、短繊維層を得た。この短繊維層を発泡シート（目付質量９５ｇ／ｍ2、厚さ３．６ｍｍ エチレン系樹脂独立発泡シート）に積層して短繊維層から発泡シートに向けて針深さ８ｍｍ、打ち込み本数３０本／ｃｍ2のニードルパンチ処理を施し、一体化処理をして床緩衝材を得た。
実施例４
繊度２．２デシテックス（ｄｔｅｘ）、繊維長５４ｍｍのポリエステル繊維（融点：２６０℃）をカーディングして目付質量約９８ｇ／ｍ2の短繊維ウエブとし、引き続き、表面側に深さ８ｍｍ、打ち込み本数３０本／ｃｍ2のニードルパンチ処理を施し、短繊維層を得た。この短繊維層を発泡シート（目付質量１４０ｇ／ｍ2、厚さ４．３ｍｍ エチレン系樹脂独立発泡シート）に積層して短繊維層から発泡シートに向けて針深さ８ｍｍ、打ち込み本数３０本／ｃｍ2のニードルパンチ処理を施して一体化処理をして床緩衝材を得た。
比較例１
繊度２．２デシテックス（ｄｔｅｘ）、繊維長５４ｍｍのポリエステル繊維（融点：２６０℃）をカーディングして目付質量約１００ｇ／ｍ2の短繊維ウエブとし、引き続き、表面側に深さ８ｍｍ、打ち込み本数６０本／ｃｍ2のニードルパンチ処理を施し、短繊維層を得た。これとは別に、発泡シート（目付質量９５ｇ／ｍ2、厚さ３．６ｍｍ エチレン系樹脂独立発泡シート）に針深さ８ｍｍ、打ち込み本数３０本／ｃｍ2のニードルパンチ処理をして孔を開け、この孔開き発泡シートに接着剤２０ｇ／ｍ2を塗布してさきの短繊維層を積層し、一体化処理をして積層体を得た。
比較例２
繊度２．２デシテックス（ｄｔｅｘ）、繊維長５４ｍｍのポリエステル繊維（融点：２６０℃）をカーディングして目付質量約９７ｇ／ｍ2の短繊維ウエブとし、引き続き、表面側に深さ８ｍｍ、打ち込み本数３０本／ｃｍ2のニードルパンチ処理を施し、短繊維層を得た。この短繊維層を発泡シート（目付質量９５ｇ／ｍ2、厚さ３．６ｍｍ エチレン系樹脂独立発泡シート）に積層して短繊維層から発泡シートに向けて針深さ８ｍｍ、打ち込み本数１０本／ｃｍ2にニードルパンチ処理を施して一体化処理をして積層体を得た。
比較例３
繊度２．２デシテックス（ｄｔｅｘ）、繊維長５４ｍｍのポリエステル繊維（融点：２６０℃）をカーディングして目付質量約９０ｇ／ｍ2の短繊維ウエブとし、引き続き、表面側に深さ８ｍｍ、打ち込み本数３０本／ｃｍ2のニードルパンチ処理を施し、短繊維層を得た。この短繊維層を発泡シート（目付質量９５ｇ／ｍ2、厚さ３．６ｍｍ エチレン系樹脂独立発泡シート）に積層して短繊維層から発泡シートに向けて針深さ８ｍｍ、打ち込み本数１２０本／ｃｍ2のニードルパンチ処理を施して一体化処理をして積層体を得た。
比較例４
繊度２．２デシテックス（ｄｔｅｘ）、繊維長５４ｍｍのポリエステル繊維（融点：２６０℃）をカーディングして目付質量約２００ｇ／ｍ2の短繊維ウエブとし、引き続き、表面側に深さ８ｍｍ、打ち込み本数３０本／ｃｍ2のニードルパンチ処理を施し、短繊維層を得た。この短繊維層を発泡シート（目付質量２１０ｇ／ｍ2、厚さ７．２ｍｍ エチレン系樹脂独立発泡シート）に積層して短繊維層から発泡シートに向けて針深さ８ｍｍ、打ち込み本数３０本／ｃｍ2にニードルパンチ処理を施して一体化処理をして積層体を得た。
Example 1
A polyester fiber (melting point: 260 ° C.) having a fineness of 2.2 decitex (dtex) and a fiber length of 54 mm is carded into a short fiber web having a weight per unit area of about 105 g / m 2 , followed by a depth of 8 mm from the surface side. A needle punch treatment of 30 pieces / cm 2 was performed to obtain a short fiber layer. This short fiber layer is laminated on a foam sheet (weight per unit area: 95 g / m 2 , thickness: 3.6 mm, ethylene-based resin independent foam sheet), the needle depth is 8 mm from the short fiber layer toward the foam sheet, and the number of driving is 30 / A floor cushioning material was obtained by performing a needle punching treatment of cm 2 and an integration treatment.
Example 2
A polyester fiber (melting point: 260 ° C.) having a fineness of 2.2 decitex (dtex) and a fiber length of 54 mm is carded to form a short fiber web having a basis weight of about 104 g / m 2. A needle punch treatment of 30 pieces / cm 2 was performed to obtain a short fiber layer. This short fiber layer is laminated on a foamed sheet (mass weight 63 g / m 2 , thickness 2.7 mm ethylene-based resin independent foamed sheet), and the needle depth is 8 mm from the short fiber layer toward the foamed sheet. A floor cushioning material was obtained by performing a needle punching treatment of cm 2 and an integration treatment.
Example 3
A polyester fiber (melting point: 260 ° C.) having a fineness of 2.2 decitex (dtex) and a fiber length of 54 mm is carded to form a short fiber web having a weight per unit area of about 209 g / m 2. A needle punch treatment of 30 pieces / cm 2 was performed to obtain a short fiber layer. This short fiber layer is laminated on a foam sheet (weight per unit area: 95 g / m 2 , thickness: 3.6 mm, ethylene-based resin independent foam sheet), the needle depth is 8 mm from the short fiber layer toward the foam sheet, and the number of driving is 30 / A needle punching treatment of cm 2 was performed and an integration treatment was performed to obtain a floor cushioning material.
Example 4
A polyester fiber (melting point: 260 ° C.) having a fineness of 2.2 decitex (dtex) and a fiber length of 54 mm is carded to form a short fiber web having a weight per unit area of about 98 g / m 2. A needle punch treatment of 30 pieces / cm 2 was performed to obtain a short fiber layer. This short fiber layer is laminated on a foam sheet (weight per unit area: 140 g / m 2 , thickness: 4.3 mm, ethylene-based resin independent foam sheet), needle depth of 8 mm from the short fiber layer toward the foam sheet, and the number of driven 30 / A floor cushioning material was obtained by performing a needle punching treatment of cm 2 and an integration treatment.
Comparative Example 1
A polyester fiber (melting point: 260 ° C.) having a fineness of 2.2 decitex (dtex) and a fiber length of 54 mm is carded into a short fiber web having a weight per unit area of about 100 g / m 2. A needle punch treatment of 60 / cm 2 was performed to obtain a short fiber layer. Separately from this, a punched sheet with a needle depth of 8 mm and a number of driven needles of 30 / cm 2 is made in a foamed sheet (mass weight 95 g / m 2 , thickness 3.6 mm ethylene resin independent foamed sheet) to make a hole. Then, 20 g / m 2 of an adhesive was applied to the perforated foam sheet, the short fiber layer was laminated, and an integration treatment was performed to obtain a laminate.
Comparative Example 2
A polyester fiber (melting point: 260 ° C.) having a fineness of 2.2 decitex (dtex) and a fiber length of 54 mm is carded into a short fiber web having a weight per unit area of about 97 g / m 2. A needle punch treatment of 30 pieces / cm 2 was performed to obtain a short fiber layer. This short fiber layer is laminated on a foam sheet (weight per unit area: 95 g / m 2 , thickness: 3.6 mm, ethylene-based resin independent foam sheet), the needle depth is 8 mm from the short fiber layer toward the foam sheet, and the number of driven 10 / A needle punch process was applied to cm 2 and an integration process was performed to obtain a laminate.
Comparative Example 3
A polyester fiber (melting point: 260 ° C.) having a fineness of 2.2 decitex (dtex) and a fiber length of 54 mm is carded to form a short fiber web having a weight per unit area of about 90 g / m 2. A needle punch treatment of 30 pieces / cm 2 was performed to obtain a short fiber layer. This short fiber layer is laminated on a foam sheet (weight per unit area: 95 g / m 2 , thickness: 3.6 mm, ethylene-based resin independent foam sheet), and the needle depth is 8 mm from the short fiber layer toward the foam sheet, and the number of driven 120 / A laminated body was obtained by performing a needle punching treatment of cm 2 and an integration treatment.
Comparative Example 4
A polyester fiber (melting point: 260 ° C.) having a fineness of 2.2 decitex (dtex) and a fiber length of 54 mm is carded to form a short fiber web having a basis weight of about 200 g / m 2. A needle punch treatment of 30 pieces / cm 2 was performed to obtain a short fiber layer. This short fiber layer is laminated on a foam sheet (weight per unit area: 210 g / m 2 , thickness: 7.2 mm, an ethylene-based resin independent foam sheet), and the needle depth is 8 mm from the short fiber layer toward the foam sheet. A needle punch process was applied to cm 2 and an integration process was performed to obtain a laminate.
次に以上より得られた各実施例ならびに比較例についてその実施態様を表１にまとめると共に、得られた各床緩衝材について施工性，踏み心地，吸音評価を夫々対比した。その結果を表２に示す。 Next, the embodiment of each example and comparative example obtained above was summarized in Table 1, and the workability, treading comfort, and sound absorption evaluation of each floor cushioning material obtained were compared. The results are shown in Table 2.
目付量：ｇ／ｍ2
５０ｃｍ×５０ｃｍの大きさを切り出し、そのときの重さを測定し、１ｍ2当たりの重量に換算する。
厚さ：ｍｍ
１５ｃｍ×１５ｃｍの大きさを切り出し、初荷重０．０５ｇ／ｍ2を懸けて、４隅の高さを測定し、その平均値で示す。
見掛け密度：ｇ／ｃｃ
目付量と厚さで算出する。
Weight per unit area: g / m 2
A size of 50 cm × 50 cm is cut out, the weight at that time is measured, and converted to a weight per 1 m 2 .
Thickness: mm
A size of 15 cm × 15 cm is cut out, an initial load of 0.05 g / m 2 is applied, heights at four corners are measured, and the average value is shown.
Apparent density: g / cc
Calculate with the basis weight and thickness.
見掛け密度＝（目付量／厚さ）
通気度：ｃｃ／ｃｍ2／ｓｅｃ
ＪＩＳ Ｌ １０９６の６．２７．１に記載のフランジール形試験機で測定した。
孔数：個／ｃｍ2
発泡シートに貫通した孔数を単位面積当たりの個数で示す。
剥離強力：Ｎ／５ｃｍ
試料は５０×２００ｍｍの試料片を取り、短片から発泡シート／不織布界面を長辺に平行に約５０ｍｍ剥がす。剥がした発泡シートと不織布をテンシロンの引張試験機のチャックにそれぞれ取り付け速度２００ｍｍ／ｍｉｎで引き剥がす。このときの剥離強度を求める。n＝５の平均値で示す。
初期圧縮弾性率：Ｎ／ｃｍ2・１００％
圧縮試験は東洋ボールドイン社製１トンテンシロンを用い、圧縮面積１００ｍｍφで圧縮速度２ｍｍ／ｍｉｎで試料を圧縮し初荷重０．０１Ｎ／ｃｍ2として試料の変形率５％の距離（ｍｍ）を求め、その距離の荷重を読み取り、試料断面積で除して、更に変形率１００％に換算して示した。
圧縮変形量：ｍｍ
圧縮試験は東洋ボールドイン社製１トンテンシロンを用い、圧縮面積１００ｍｍφで圧縮速度２ｍｍ／ｍｉｎで試料を圧縮し初荷重０．０１Ｎ／ｃｍ2として試料に荷重４．３Ｎ／ｃｍ2加わったときの変形量（ｍｍ）を求める。
施工性：
床緩衝材の発泡シートをコンクリートスラブに張り合わせし、床材の木質板の裏面に不織布面に張り合わせる作業において取り扱いのよさと床緩衝材の層間の剥離の有無を評価
取り扱いに問題なく層間の剥離もない ○
取り扱いに問題ないが層間の剥離がやや見られる △
取り扱い性が悪く層間の剥離が起こる ×
踏み心地
５００ｍｍ×５００ｍｍ角の床緩衝材をコンクリート板に貼り付けその上部（床緩衝材の上部）に市販の床材（木質板）を貼り付けて評価用試料を作成し、パネラー５名により床の踏み具合を評価してもらった。
Apparent density = (weight per unit area / thickness)
Air permeability: cc / cm 2 / sec
It was measured with a frangol type testing machine described in 6.27.1 of JIS L 1096.
Number of holes: pieces / cm 2
The number of holes penetrating the foam sheet is indicated by the number per unit area.
Peel strength: N / 5cm
The sample is a 50 × 200 mm sample piece, and the foam sheet / nonwoven fabric interface is peeled from the short piece by about 50 mm parallel to the long side. The peeled foam sheet and the nonwoven fabric are each peeled off at a mounting speed of 200 mm / min on a chuck of a Tensilon tensile tester. The peel strength at this time is determined. It shows by the average value of n = 5.
Initial compression modulus: N / cm 2 · 100%
The compression test uses a 1-ton tensilon made by Toyo Bald-In Co., Ltd., compresses the sample at a compression area of 100 mmφ and a compression speed of 2 mm / min, and obtains a distance (mm) with an initial load of 0.01 N / cm 2 and a deformation rate of 5% of the sample. The load at that distance was read, divided by the cross-sectional area of the sample, and further converted into a deformation rate of 100%.
Compression deformation: mm
Compression tests by Toyo bold in
Workability:
The floor cushioning foam sheet is laminated to the concrete slab, and in the work of pasting the floorboard wood board to the nonwoven fabric surface, it is evaluated whether it is easy to handle and the floor cushioning material is delaminated. ○
There is no problem in handling, but there is some peeling between layers △
Poor handling and peeling between layers occurs ×
Stepping comfort A 500mm x 500mm square floor cushioning material is pasted on a concrete board, and a commercial flooring (wood board) is pasted on top of it (top of the floor cushioning material). I was asked to evaluate the degree of treading.
踏み心地がよい ○
床酔いする（変形が大きい）、床が硬い、の何れか一方 △
床酔いする（変形が大きい）、床が硬い、 の両方 ×
吸音評価：ΔｄＢ
内壁面全体に吸音材を有する衝撃音測定箱の上面にコンクリートスラブ上に床緩衝材を積層し、その上に床材の木質板をそれぞれ接着してタッピングマシーンで衝撃を測定する。
Comfortable to step on ○
Either floor sickness (large deformation) or hard floor △
Bed sickness (large deformation), hard floor, both
Sound absorption evaluation: ΔdB
A floor cushioning material is laminated on a concrete slab on the upper surface of an impact sound measuring box having a sound absorbing material on the entire inner wall surface, and a wooden board is adhered on the floor slab, and the impact is measured with a tapping machine.
周波数は１００Ｈｚ〜５００Ｈｚとする。 The frequency is 100 Hz to 500 Hz.
発生音の強さ：S１
コンクリートスラブ裏面への到達音の強さ：Ｓ２
ΔｄＢ＝Ｓ１−Ｓ２
上記表より本発明による床緩衝材は各比較例に比し全体的に踏み心地，施工性，吸音評価において平均して優れていることが理解され、踏み心地，防音性能において改善が認められた。
Generated sound intensity: S1
Strength of sound reaching the back of concrete slab: S2
ΔdB = S1-S2
From the above table, it is understood that the floor cushioning material according to the present invention is generally superior in terms of treading comfort, workability, and sound absorption evaluation as compared with each comparative example, and improvements in treading comfort and soundproofing performance were recognized. .
１：床材
２：床緩衝材
３：コンクリートスラブ
Ａ：短繊維層
Ｂ：発泡シート
1: Floor material 2: Floor cushioning material 3: Concrete slab A: Short fiber layer B: Foam sheet
Claims (3)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2007329559A JP2009150138A (en) | 2007-12-21 | 2007-12-21 | Floor cushioning material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2007329559A JP2009150138A (en) | 2007-12-21 | 2007-12-21 | Floor cushioning material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2009150138A true JP2009150138A (en) | 2009-07-09 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2007329559A Pending JP2009150138A (en) | 2007-12-21 | 2007-12-21 | Floor cushioning material |
Country Status (1)
| Country | Link |
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| JP (1) | JP2009150138A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101615775B1 (en) * | 2010-05-12 | 2016-04-26 | 주식회사 광세로 | High rigidity form |
| JP6225308B1 (en) * | 2016-06-20 | 2017-11-08 | 謙二 藤本 | Soundproof room and floor structure of wooden house |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0420102Y2 (en) * | 1985-12-05 | 1992-05-08 | ||
| JPH11245319A (en) * | 1998-02-27 | 1999-09-14 | Toyobo Co Ltd | Porous material, sound absorbing and insulating material using it, and vibration damping material |
| JP2005015941A (en) * | 2003-06-25 | 2005-01-20 | Kureha Ltd | Floor cushioning material |
-
2007
- 2007-12-21 JP JP2007329559A patent/JP2009150138A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0420102Y2 (en) * | 1985-12-05 | 1992-05-08 | ||
| JPH11245319A (en) * | 1998-02-27 | 1999-09-14 | Toyobo Co Ltd | Porous material, sound absorbing and insulating material using it, and vibration damping material |
| JP2005015941A (en) * | 2003-06-25 | 2005-01-20 | Kureha Ltd | Floor cushioning material |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101615775B1 (en) * | 2010-05-12 | 2016-04-26 | 주식회사 광세로 | High rigidity form |
| JP6225308B1 (en) * | 2016-06-20 | 2017-11-08 | 謙二 藤本 | Soundproof room and floor structure of wooden house |
| JP2017226951A (en) * | 2016-06-20 | 2017-12-28 | 謙二 藤本 | Soundproof chamber and floor structure of wooden house |
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