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JP6369846B2 - Rug cushion material - Google Patents

Rug cushion material Download PDF

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JP6369846B2
JP6369846B2 JP2013174034A JP2013174034A JP6369846B2 JP 6369846 B2 JP6369846 B2 JP 6369846B2 JP 2013174034 A JP2013174034 A JP 2013174034A JP 2013174034 A JP2013174034 A JP 2013174034A JP 6369846 B2 JP6369846 B2 JP 6369846B2
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rug
surface layer
carpet
cushioning
cushioning material
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JP2015042190A (en
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満 西尾
満 西尾
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Suminoe Textile Co Ltd
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Description

この発明は、室内で敷かれるラグ用クッションに関するものである。   The present invention relates to a lug cushion laid indoors.

一般的に、カーペットはタフテッドカーペット、フックカーペット、不織布などの表皮層とバッキング樹脂層と裏打ち層からなるカーペットが知られている。カーペットは、各種施設の室内、家庭のリビングルームや子供部屋等に敷かれ、さらに中敷きや部分敷きとしても用いられ、インテリアであるとともに、生活に密着した生活空間でくつろぐ場所に用いられるものでもある。   In general, carpets made of a skin layer, a backing resin layer, and a backing layer such as tufted carpet, hook carpet, and nonwoven fabric are known. Carpets are laid in various facilities, home living rooms, children's rooms, etc., and are also used as insoles and partial lays, as well as interiors and used in places where people can relax in living spaces that are closely related to their lives. .

これらのカーペットとしては、比較的扱い易い厚みの薄いカーペットから、厚みがあって保温性及びクッション性に優れたカーペットまで様々なカーペットがある。例えば、床暖房が施された床の上に敷設するカーペットとして、特許文献1の床暖房用カーペットが知られている。一方、厚さの薄いカーペットも比較的扱い易いことから広く利用されている。   These carpets include various carpets ranging from a thin carpet that is relatively easy to handle to a carpet that is thick and has excellent heat retention and cushioning properties. For example, the floor heating carpet of Patent Document 1 is known as a carpet laid on a floor to which floor heating has been applied. On the other hand, thin carpets are also widely used because they are relatively easy to handle.

しかしながら、このようなクッション性の良いカーペットはボリュームがあって取り扱いが容易とは言い難かった。一方、比較的厚さの薄いカーペットは底付き感があり特に、カーペットの上でくつろぐために敷設している家庭では、快適とは言い難かった。加えて、集合住宅等では、階下に伝わる歩行音や落下音は、いわゆる騒音として快適性を妨げるおそれがあった。   However, such a carpet with good cushioning has a volume and is not easy to handle. On the other hand, a relatively thin carpet has a feeling of bottoming, and it was difficult to say that it was comfortable particularly in a home laid to relax on the carpet. In addition, in apartment houses and the like, walking sounds and falling sounds transmitted downstairs may interfere with comfort as so-called noise.

特開昭60−246880号公報JP-A-60-246880

本発明は、かかる技術的背景に鑑みてなされたものであって、底付き感がなく優れたクッション性を備えるとともに、階下への遮音性に優れたカーペットの下に敷設するラグ用クッション材を提供することを目的とする。   The present invention has been made in view of such a technical background, and has a cushioning material for rugs that is laid under a carpet that has an excellent cushioning property without a feeling of bottoming and that is excellent in sound insulation to the downstairs. The purpose is to provide.

前記目的を達成するために、本発明は以下の手段を提供する。   In order to achieve the above object, the present invention provides the following means.

表面層の下側にクッション材からなる中間層が積層されるとともに、その中間層の下側に裏面層が積層されてなり、前記裏面層の下側に少なくとも部分的に滑り止め樹脂を固着させ、かつ、前記滑り止め樹脂の表面に、熱膨張性マイクロカプセルが熱発泡してなる突起を設け、前記クッション材が、厚さが10mm〜40mmの範囲であるポリウレタンフォームであり、前記表面層及び裏面層が、ポリエステル繊維製の目付けが100〜300g/m のニードルパンチ不織布からなり、前記表面層に、繊維が部分溶融して粒状とされた防滑処理が施されてなることを特徴とするラグ用クッション材。 An intermediate layer made of a cushioning material is laminated below the surface layer, and a back surface layer is laminated below the intermediate layer, and at least partially attaches a non-slip resin to the lower side of the back surface layer. And a protrusion formed by thermally foaming a thermally expandable microcapsule is provided on the surface of the anti-slip resin, and the cushion material is a polyurethane foam having a thickness in a range of 10 mm to 40 mm, and the surface layer and The back surface layer is made of a needle punched nonwoven fabric having a basis weight of 100 to 300 g / m 2 made of polyester fiber, and the surface layer is subjected to an anti-slip treatment in which the fibers are partially melted to be granular. Rug cushioning material.

本願発明では、In the present invention,
・床材の軽量床衝撃音レベル低減量試験の結果は、性能等級ΔLL(I)−7で合格であった。また、フローリング床にラグ用クッション材を置き、その上に2畳用のラグカーペット重ねたところに座ったところふかふかで優れたクッション性を示し快適であった。  -The result of the light floor impact sound level reduction test for the flooring material was a performance grade ΔLL (I) -7. Also, a rug cushioning material was placed on the flooring floor, and a rug carpet for two tatami mats was placed on top of it.
・床材の軽量床衝撃音レベル低減量試験の結果は、性能等級ΔLL(I)−6で合格であった。また、フローリング床にラグ用クッション材を置き、その上に2畳用のラグカーペット重ねたところに座ったところ、底付き感がなくふかふかで優れたクッション性を示し快適であった。さらに、上に乗って歩行してみたが、ラグ用クッション材とラグカーペットにずれも発生することがなかった。  -The result of the light floor impact sound level reduction test of the flooring material was a performance grade ΔLL (I) -6 and passed. Also, when a rug cushioning material was placed on the flooring floor and the rug carpet for two tatami mats was placed on the flooring, it was comfortable without showing a feeling of bottoming and having excellent cushioning. Furthermore, although I tried to walk on it, there was no deviation between the rug cushioning material and the rug carpet.
・床材の軽量床衝撃音レベル低減量試験の結果は、性能等級ΔLL(I)−9で合格であった。また、フローリング床にラグ用クッション材を置き、その上に2畳用のラグカーペット重ねたところに座ったところ、実施例1よりもかなりふかふかで優れたクッション性を示し快適であった。さらに、上に乗って歩行してみたが、ラグ用クッション材とラグカーペットにずれも発生することがなかった。  -The result of the light floor impact sound level reduction test of the flooring material was a performance grade ΔLL (I) -9 and passed. Moreover, when a rug cushioning material was placed on the flooring floor and the rug carpet for two tatami mats was placed on the flooring material, the cushioning material was considerably softer than Example 1 and the cushioning property was excellent and comfortable. Furthermore, although I tried to walk on it, there was no deviation between the rug cushioning material and the rug carpet.
・ラグカーペットの上に乗って10回往復歩行してみても、ラグ用クッション材は床とのずれもラグカーペットとのずれも発生することがなかった。また、床材の軽量床衝撃音レベル低減量試験の結果は、性能等級ΔLL(I)−7で合格であった。なお、フローリング床にラグ用クッション材を置き、その上に2畳用のラグカーペット重ねたところに座ったところふかふかで優れたクッション性を示し快適であった。さらに、上に乗って歩行してみたが、ラグ用クッション材とラグカーペットにずれも発生することがなかった。  ・ When riding on the rug carpet and walking 10 times, the rug cushioning material did not shift from the floor or from the rug carpet. Further, the result of the light floor impact sound level reduction test of the flooring material was a performance grade ΔLL (I) -7 and passed. In addition, the cushion material for rugs was placed on the flooring floor, and when sitting on the rug carpet for 2 tatami mats, it was soft and comfortable, showing excellent cushioning properties. Furthermore, although I tried to walk on it, there was no deviation between the rug cushioning material and the rug carpet.

この発明に係るラグ用クッション材を示す説明図である。It is explanatory drawing which shows the cushion material for rugs concerning this invention.

本発明に係るラグ用クッション材の一実施形態を図1に基づいて説明する。この発明に係るラグ用クッション材1は、表面層2の下側にクッション材からなる中間層3が積層されるとともに、その中間層3の下側に裏面層4が積層されてなることを特徴とする。   One embodiment of the lug cushion material according to the present invention will be described with reference to FIG. The rug cushioning material 1 according to the present invention is characterized in that an intermediate layer 3 made of a cushioning material is laminated below the surface layer 2 and a back surface layer 4 is laminated below the intermediate layer 3. And

本発明において、前記表面層2及び前記裏面層4としては特に制限されないが不織布が好ましい。不織布としては、ニードルパンチ不織布、スパンボンド不織布、ケミカルボンド不織布からなる群より選ばれる1種が好ましく、かつ前記不織布の目付けは100〜300g/mが好ましい。前記表面層2及び前記裏面層4として不織布を用いることで、十分な表面強度及び十分な耐摩耗性を得ることができるとともに、ラグ用クッション材に適用した場合に、ラグ用クッション材上に敷設されるカーペットの滑りを抑制することができる。 In the present invention, the surface layer 2 and the back layer 4 are not particularly limited, but are preferably non-woven fabrics. As a nonwoven fabric, 1 type chosen from the group which consists of a needle punch nonwoven fabric, a spun bond nonwoven fabric, and a chemical bond nonwoven fabric is preferable, and the fabric weight of the said nonwoven fabric has preferable 100-300 g / m < 2 >. By using non-woven fabric as the surface layer 2 and the back layer 4, sufficient surface strength and sufficient wear resistance can be obtained, and when applied to a rug cushion material, it is laid on the rug cushion material. The slipping of the carpet can be suppressed.

前記不織布の目付が100g/m未満では、耐摩耗性や表面の強度を十分に確保するのが困難になるおそれがあり好ましくない。300g/mを超えてもそれにみあう効果が乏しいばかりでなくコスト増大や、重量の増加を招くおそれがあり好ましくない。不織布の目付をこの範囲にすることで、表面層と裏面層とによりクッション材からなる中間層を保護し、さらに取り扱いが容易となる。 If the basis weight of the nonwoven fabric is less than 100 g / m 2, it may be difficult to ensure sufficient wear resistance and surface strength. Even if it exceeds 300 g / m 2 , not only is the effect of matching it poor, but there is also a risk of increasing the cost and weight, such being undesirable. By setting the basis weight of the nonwoven fabric within this range, the intermediate layer made of the cushion material is protected by the front surface layer and the back surface layer, and handling becomes easier.

不織布を構成する素材としては、特に限定されないが、ポリエステル繊維、ポリプロピレン繊維、ナイロン繊維等を挙げることができる。中でも、ポリエステル繊維またはポリプロピレン繊維からなるニードルパンチ不織布又はスパンボンド不織布がより好ましい。   Although it does not specifically limit as a raw material which comprises a nonwoven fabric, A polyester fiber, a polypropylene fiber, nylon fiber, etc. can be mentioned. Among these, a needle punch nonwoven fabric or a spunbond nonwoven fabric made of polyester fiber or polypropylene fiber is more preferable.

前記裏面層4の下側に部分的に滑り止め樹脂5を固着させるのが好ましい。滑り止め樹脂5としては、特に限定されないがスチレン・ブタジエンゴム(SBR)、塩化ビニル(PVC)、エチレン酢酸ビニル共重合体(EVA)、メチルメタクリレート・ブタジエンゴム(MBR)、アクリル樹脂等を挙げることができ、前記裏面層4の下側にナイフ、ロールなどによるコーティング法あるいは、スクリーンによるプリント法によって塗布し、その後加熱して形成される。   It is preferable that the non-slip resin 5 is partially fixed to the lower side of the back layer 4. Examples of the anti-slip resin 5 include, but are not limited to, styrene / butadiene rubber (SBR), vinyl chloride (PVC), ethylene vinyl acetate copolymer (EVA), methyl methacrylate / butadiene rubber (MBR), and acrylic resin. It is formed by applying the coating on the lower side of the back layer 4 by a coating method using a knife, a roll or the like or a printing method using a screen, and then heating.

前記滑り止め樹脂5は、裏面層4の全面に固着させてもよいし、部分的であってもよい。好ましくは部分的であって、例えばドット状に塗布し形成するのが好ましい。さらに、ドット状や柄などの意匠を組み合わせても良い。このようにすることで、畳、フローリングなどの床の上にラグ用クッション材を敷設しても、滑りを防止することができる。
さらに、滑り止め樹脂5に熱膨張性マイクロカプセルを配合してもよく、このようにすることで、加熱時に発泡してさらに突起とすることができる。
The anti-slip resin 5 may be fixed to the entire surface of the back layer 4 or may be partial. It is preferably partial, and for example, it is preferably formed by applying in a dot shape. Furthermore, you may combine designs, such as a dot shape and a pattern. By doing in this way, even if it lays the cushion material for rugs on floors, such as a tatami mat and flooring, it can prevent slipping.
Furthermore, a heat-expandable microcapsule may be blended with the anti-slip resin 5, and by doing so, it can be foamed during heating to further form a protrusion.

本発明において、前記クッション材からなる中間層3としては特に制限されないが、例えば、ポリエチレンフォーム、ウレタンフォームを使用することができる。このようにすることで、優れたクッション性を発揮するとともに、階下への遮音性に優れる。なかでも厚さが10mm〜40mmの範囲であるポリウレタンフォームが好ましい。厚さが10mm未満では、クッション性はあるものの底付き感を感じるおそれがあり、遮音性の面でも好ましくない。厚さが40mmを越えても遮音性に優れるものの徒にラグ用クッション材全体が厚くなり、取り扱い難くなるおそれがあり好ましくない。   In the present invention, the intermediate layer 3 made of the cushion material is not particularly limited. For example, polyethylene foam and urethane foam can be used. By doing in this way, while exhibiting the outstanding cushioning property, it is excellent in the sound-insulating property to a downstairs. Among these, a polyurethane foam having a thickness in the range of 10 mm to 40 mm is preferable. If the thickness is less than 10 mm, although there is cushioning property, there is a possibility of feeling a bottoming, which is not preferable in terms of sound insulation. Even if the thickness exceeds 40 mm, although the sound insulation is excellent, the entire lug cushioning material becomes thick, which may be difficult to handle.

前記ポリウレタンフォームは公知のものを用いることができ、特に限定されないが、ポリウレタンフォームは、16D〜40D(Dはウレタンの密度、Kg/m)が好ましい。 The polyurethane foam may be a known one, and is not particularly limited, but the polyurethane foam is preferably 16D to 40D (D is the density of urethane, Kg / m 3 ).

さらに本発明においては、前記表面層2に防滑処理を施すのが好ましい。カーペットとの滑り止めを向上でき、カーペットの位置ずれを防止することができる。前記表面層2に施す防滑処理としては、例えば、前記表面層2の表面の繊維をガスバーナーの炎を当てて加熱することで、繊維が部分的に溶融し、粒状になり防滑性を付与させることができる。また、例えば塩化ビニル樹脂、アクリル系樹脂などを、プリント法、スプレー法、コーティング法、またはディップ法等の公知の方法により表面層2の不織布に塗工処理することができる。塗工は、表面層2の全面であっても良いし、部分的あるいは一部であっても良い。   Furthermore, in the present invention, the surface layer 2 is preferably subjected to an anti-slip treatment. The slip prevention with the carpet can be improved, and the displacement of the carpet can be prevented. As the anti-slip treatment applied to the surface layer 2, for example, the fiber on the surface of the surface layer 2 is heated by applying a flame of a gas burner, so that the fiber partially melts and becomes granular and imparts anti-slip properties. be able to. Further, for example, a vinyl chloride resin, an acrylic resin, or the like can be applied to the nonwoven fabric of the surface layer 2 by a known method such as a printing method, a spray method, a coating method, or a dip method. The coating may be performed on the entire surface layer 2, or may be partially or partially applied.

本発明において、ラグ用クッション材の表面層2に意匠を施しても良い。意匠を施すには、表面層に例えば、ロータリープリント、フラットスクリーンプリント、インクジェットプリントや、熱転写フイルムなど公知の方法を用いることができる。なお、綿染めした繊維を用いた不織布を表面層2として、さらに上述の意匠を施すことで、デザイン性を向上させることができる。さらに、表面層2に染料による染意匠ばかりでなく、顔料や樹脂によるプリント意匠を付与してもよい。   In the present invention, a design may be applied to the surface layer 2 of the lug cushion material. For applying the design, a known method such as rotary printing, flat screen printing, ink jet printing, or thermal transfer film can be used for the surface layer. In addition, a design property can be improved by giving the above-mentioned design as the surface layer 2 using the nonwoven fabric using the fiber dyed with cotton. Further, not only a dye design with a dye but also a print design with a pigment or a resin may be imparted to the surface layer 2.

本発明において、表面層2の下側にクッション材からなる中間層3を積層し、下側に裏面層4を積層一体化するには、例えば、スチレン・ブタジエンゴム(SBR)、エチレン酢酸ビニル共重合体(EVA)、メチルメタクリレート・ブタジエンゴム(MBR)、アクリル樹脂などから選ばれる樹脂からなる接着剤を、各層の間に公知の方法で塗布し、乾燥接着することで、一体化することができる。また、クッション材からなる中間層3が、ウレタンフォームのように熱溶融性を有する材料は、ガスバーナー等の炎によりウレタンフォームの片面を溶融すると同時に表面層2を積層圧着することで、接着することができ、さらに、ウレタンフォームの反対面を同様に溶融すると同時に裏面層4を積層圧着することで表面層2と中間層3と裏面層4を強固に接着一体化することができる。   In the present invention, the intermediate layer 3 made of a cushioning material is laminated on the lower side of the surface layer 2 and the back surface layer 4 is laminated and integrated on the lower side. For example, styrene-butadiene rubber (SBR) It can be integrated by applying an adhesive made of a resin selected from a polymer (EVA), methyl methacrylate / butadiene rubber (MBR), an acrylic resin and the like by a known method between the layers, and by dry bonding. it can. In addition, the intermediate layer 3 made of a cushion material is bonded to a material having heat melting properties such as urethane foam by melting one surface of the urethane foam by a flame such as a gas burner and simultaneously laminating and pressing the surface layer 2. Further, the opposite surface of the urethane foam is melted in the same manner, and at the same time, the back surface layer 4 is laminated and pressure bonded, whereby the surface layer 2, the intermediate layer 3, and the back surface layer 4 can be firmly bonded and integrated.

また、本発明のラグ用クッション材は、周縁部をオーバーロック加工、テープ加工、あるいはヘム加工を施しほつれ防止とともに外観を整えてもよい。   Further, the lug cushion material of the present invention may be subjected to overlock processing, tape processing, or hem processing on the peripheral portion to prevent fraying and adjust the appearance.

次に、本発明の具体的実施例について説明するが、本発明はこれらの実施例のものに特に限定されるものではない。   Next, specific examples of the present invention will be described, but the present invention is not particularly limited to these examples.

<実施例1>
ポリエステル繊維製の目付200g/mのニードルパンチ不織布の片面に、スクリーンを用いて直径およそ2mmの大きさに塩化ビニル樹脂をドット状にプリント(ウエット塗布量90g/m)し、その後温度150℃で5分間乾燥し、滑り止め樹脂5を形成した。次に、密度18D、厚さが15mmのウレタンフォームの片面を、ガスバーナーにより溶融させると同時に裏面層4の滑り止め樹脂5の形成された面の反対側に積層し接着した。その後、ウレタンフォームのもう一方の面を、同様に溶融させポリエステル繊維性の目付200g/mのニードルパンチ不織布を積層し接着した。こうして得られたラグ用クッション材を、たて170cm、よこ170cmの大きさに裁断し、周縁部にテープ加工を施してラグ用クッション材のほつれ防止を施した。床材の軽量床衝撃音レベル低減量試験の結果は、性能等級ΔLL(I)−7で合格であった。また、フローリング床にラグ用クッション材を置き、その上に2畳用のラグカーペット重ねたところに座ったところふかふかで優れたクッション性を示し快適であった。
<Example 1>
On one side of a needle punched nonwoven fabric made of polyester fiber having a basis weight of 200 g / m 2, a vinyl chloride resin is printed in a dot shape to a size of about 2 mm in diameter using a screen (wet application amount 90 g / m 2 ), and then the temperature is 150 Drying at 5 ° C. for 5 minutes formed an anti-slip resin 5. Next, one surface of a urethane foam having a density of 18D and a thickness of 15 mm was melted by a gas burner and simultaneously laminated and adhered to the opposite side of the surface of the back surface layer 4 on which the anti-slip resin 5 was formed. Thereafter, the other surface of the urethane foam was melted in the same manner, and a polyester fiber basis weight 200 g / m 2 needle punched nonwoven fabric was laminated and adhered. The rug cushion material thus obtained was cut into a size of 170 cm in length and 170 cm in width, and taped to the peripheral edge portion to prevent fraying of the rug cushion material. The result of the light floor impact sound level reduction test of the flooring material was a performance grade ΔLL (I) -7. Also, a rug cushioning material was placed on the flooring floor, and a rug carpet for two tatami mats was placed on top of it.

<実施例2>
実施例1において、厚さが12mmのポリウレタンフォームを用いた以外実施例1と同様にしてラグ用クッション材を得た。床材の軽量床衝撃音レベル低減量試験の結果は、性能等級ΔLL(I)−6で合格であった。また、フローリング床にラグ用クッション材を置き、その上に2畳用のラグカーペット重ねたところに座ったところ、底付き感がなくふかふかで優れたクッション性を示し快適であった。さらに、上に乗って歩行してみたが、ラグ用クッション材とラグカーペットにずれも発生することがなかった。
<Example 2>
In Example 1, a rug cushioning material was obtained in the same manner as in Example 1 except that polyurethane foam having a thickness of 12 mm was used. The result of the light floor impact sound level reduction test of the flooring material was a pass in performance grade ΔLL (I) -6. Also, when a rug cushioning material was placed on the flooring floor and the rug carpet for two tatami mats was placed on the flooring, it was comfortable without showing a feeling of bottoming and having excellent cushioning. Furthermore, although I tried to walk on it, there was no deviation between the rug cushioning material and the rug carpet.

<実施例3>
実施例1において、厚さが35mmのポリウレタンフォームを用いた以外実施例1と同様にしてラグ用クッション材を得た。床材の軽量床衝撃音レベル低減量試験の結果は、性能等級ΔLL(I)−9で合格であった。また、フローリング床にラグ用クッション材を置き、その上に2畳用のラグカーペット重ねたところに座ったところ、実施例1よりもかなりふかふかで優れたクッション性を示し快適であった。さらに、上に乗って歩行してみたが、ラグ用クッション材とラグカーペットにずれも発生することがなかった。
<Example 3>
A rug cushioning material was obtained in the same manner as in Example 1 except that polyurethane foam having a thickness of 35 mm was used. The result of the light floor impact sound level reduction test of the flooring material was a performance grade ΔLL (I) -9 and passed. Moreover, when a rug cushioning material was placed on the flooring floor and the rug carpet for two tatami mats was placed on the flooring material, the cushioning material was considerably softer than Example 1 and the cushioning property was excellent and comfortable. Furthermore, although I tried to walk on it, there was no deviation between the rug cushioning material and the rug carpet.

<実施例4>
実施例1において、表面層2の表面に防滑処理として、前記表面層2の表面の繊維をガスバーナーの炎を当てて加熱し、繊維が部分的に溶融し粒状させ防滑性を付与した以外は、実施例1と同様にしてラグ用クッション材を得た。ラグカーペットの上に乗って10回往復歩行してみても、ラグ用クッション材は床とのずれもラグカーペットとのずれも発生することがなかった。また、床材の軽量床衝撃音レベル低減量試験の結果は、性能等級ΔLL(I)−7で合格であった。なお、フローリング床にラグ用クッション材を置き、その上に2畳用のラグカーペット重ねたところに座ったところふかふかで優れたクッション性を示し快適であった。さらに、上に乗って歩行してみたが、ラグ用クッション材とラグカーペットにずれも発生することがなかった。
<Example 4>
In Example 1, as the anti-slip treatment on the surface of the surface layer 2, the fibers on the surface of the surface layer 2 were heated by applying a flame of a gas burner, and the fibers were partially melted and granulated to give anti-slip properties. A rug cushioning material was obtained in the same manner as in Example 1. Even when riding on the rug carpet and reciprocating 10 times, the rug cushioning material did not shift from the floor or from the rug carpet. Further, the result of the light floor impact sound level reduction test of the flooring material was a performance grade ΔLL (I) -7 and passed. In addition, the cushion material for rugs was placed on the flooring floor, and when sitting on the rug carpet for 2 tatami mats, it was soft and comfortable, showing excellent cushioning properties. Furthermore, although I tried to walk on it, there was no deviation between the rug cushioning material and the rug carpet.

<比較例1>
実施例1において、厚さが12mmのウレタンフォームの中間層3を用いずに、接着剤としてエチレン酢酸ビニル共重合体(EVA)エマルジョンを用いて表面層2と裏面層4を積層一体化した以外実施例1と同様にしてクッション材を得た。床材の軽量床衝撃音レベル低減量試験の結果は、性能等級ΔLL(I)−4で不合格であった。なお、フローリング床にこのクッション材を置き、その上に2畳用のラグカーペット重ねたところに座ったところ、底付き感が著しく、クッション性があるとは言い難かった。
<Comparative Example 1>
In Example 1, the surface layer 2 and the back surface layer 4 were laminated and integrated using an ethylene vinyl acetate copolymer (EVA) emulsion as an adhesive without using the urethane foam intermediate layer 3 having a thickness of 12 mm. A cushioning material was obtained in the same manner as in Example 1. The result of the light floor impact sound level reduction test of the flooring material was a failure in performance grade ΔLL (I) -4. In addition, when this cushion material was placed on the flooring floor and the rug carpet for 2 tatami mats was placed on it, it was difficult to say that there was a feeling of bottoming and cushioning.

<比較例2>
実施例1において、厚さが15mmのウレタンフォームに替えて表面層2と同一の不織布を用い、接着剤としてエチレン酢酸ビニル共重合体(EVA)エマルジョンを用いて積層一体化した以外実施例1と同様にしてクッション材を得た。床材の軽量床衝撃音レベル低減量試験の結果は、性能等級ΔLL(I)−5で不合格であった。なお、フローリング床にこのクッション材を置き、その上に2畳用のラグカーペット重ねたところに座ったところ、比較例1とほぼ同様に底付き感が著しく、クッション性があるとは言い難かった。
<Comparative example 2>
Example 1 except that the same non-woven fabric as the surface layer 2 was used instead of the urethane foam having a thickness of 15 mm, and an ethylene vinyl acetate copolymer (EVA) emulsion was used as an adhesive and laminated and integrated. A cushion material was obtained in the same manner. The result of the light floor impact sound level reduction test of the flooring material was a failure in performance grade ΔLL (I) -5. In addition, when this cushion material was put on the flooring floor and it sat down on the place where the rug carpet for 2 tatami mats was piled up, the feeling of bottoming was remarkable like comparative example 1, and it was hard to say that there was cushioning properties. .

本発明の実施例1〜4のラグ用クッション材は、フローリング床にラグ用クッション材を置き、その上にラグカーペット重ねて使用することができ、階下への遮音性に優れるとともに、優れたクッション性を発揮し快適であった。   The rug cushioning material of Examples 1 to 4 of the present invention can be used by placing the rug cushioning material on the flooring floor and overlapping the rug carpet thereon, and is excellent in sound insulation to the downstairs and excellent cushioning. It was sexual and comfortable.

これに対して、比較例1、2のクッション材は、底付き感が著しく、クッション性があるとは言い難かった。   On the other hand, the cushion materials of Comparative Examples 1 and 2 have a remarkable bottoming feeling and were hardly said to have cushioning properties.

また、得られたラグ用クッション材の衝撃音について、下記の試験に基づいて評価した。   Moreover, the impact sound of the obtained lug cushion material was evaluated based on the following test.

<床材の軽量床衝撃音レベル低減量試験評価法>
性能等級ΔLL(I)−4のフローリングの上にラグ用クッション材を敷設し、JIS A 1440−1に基づいて標準軽量衝撃源(タッピングマシン)を使用して測定し、階下への遮音性の評価とした。性能等級ΔLL(I)−6以上を合格とした。
<Light floor impact sound level reduction test evaluation method for flooring>
The lug cushioning material is laid on the flooring of the performance grade ΔLL (I) -4, measured using a standard lightweight impact source (tapping machine) based on JIS A 1440-1, and the sound insulation to the downstairs It was evaluated. A performance grade ΔLL (I) −6 or higher was considered acceptable.

本発明のラグ用クッション材は、階下への遮音性に優れるとともに、底付き感がなく優れたクッション性を備えるので、カーペットの下に敷設するラグ用クッション材として用いられる。   The rug cushioning material of the present invention is excellent in sound insulation to the downstairs and has an excellent cushioning property without a feeling of bottoming, and is therefore used as a rug cushioning material laid under a carpet.

1・・・ラグ用クッション材
2・・・表面層
3・・・中間層
4・・・裏面層
5・・・滑り止め樹脂
DESCRIPTION OF SYMBOLS 1 ... Cushioning material for rugs 2 ... Surface layer 3 ... Intermediate layer 4 ... Back layer 5 ... Anti-slip resin

Claims (1)

表面層の下側にクッション材からなる中間層が積層されるとともに、その中間層の下側に裏面層が積層されてなり、前記裏面層の下側に少なくとも部分的に滑り止め樹脂を固着させ、かつ、前記滑り止め樹脂の表面に、熱膨張性マイクロカプセルが熱発泡してなる突起を設け、前記クッション材が、厚さが10mm〜40mmの範囲であるポリウレタンフォームであり、前記表面層及び裏面層が、ポリエステル繊維製の目付けが100〜300g/m のニードルパンチ不織布からなり、前記表面層に、繊維が部分溶融して粒状とされた防滑処理が施されてなることを特徴とするラグ用クッション材。 An intermediate layer made of a cushioning material is laminated below the surface layer, and a back surface layer is laminated below the intermediate layer, and at least partially attaches a non-slip resin to the lower side of the back surface layer. And a protrusion formed by thermally foaming a thermally expandable microcapsule is provided on the surface of the anti-slip resin, and the cushion material is a polyurethane foam having a thickness in a range of 10 mm to 40 mm, and the surface layer and The back surface layer is made of a needle punched nonwoven fabric having a basis weight of 100 to 300 g / m 2 made of polyester fiber, and the surface layer is subjected to an anti-slip treatment in which the fibers are partially melted to be granular. Rug cushioning material.
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