JP2715391B2 - Buffer material for flooring - Google Patents
Buffer material for flooringInfo
- Publication number
- JP2715391B2 JP2715391B2 JP2072625A JP7262590A JP2715391B2 JP 2715391 B2 JP2715391 B2 JP 2715391B2 JP 2072625 A JP2072625 A JP 2072625A JP 7262590 A JP7262590 A JP 7262590A JP 2715391 B2 JP2715391 B2 JP 2715391B2
- Authority
- JP
- Japan
- Prior art keywords
- nonwoven fabric
- fabric layer
- flooring
- foam
- cushioning member
- 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.)
- Expired - Lifetime
Links
- 238000009408 flooring Methods 0.000 title claims description 34
- 239000000463 material Substances 0.000 title claims description 18
- 239000004745 nonwoven fabric Substances 0.000 claims description 66
- 239000006260 foam Substances 0.000 claims description 48
- 230000006835 compression Effects 0.000 claims description 20
- 238000007906 compression Methods 0.000 claims description 20
- 238000010030 laminating Methods 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 2
- 239000006261 foam material Substances 0.000 claims 2
- 238000009413 insulation Methods 0.000 description 22
- 230000000694 effects Effects 0.000 description 11
- 239000000203 mixture Substances 0.000 description 11
- 239000000835 fiber Substances 0.000 description 8
- 230000001965 increasing effect Effects 0.000 description 4
- 229920005989 resin Polymers 0.000 description 4
- 239000011347 resin Substances 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 3
- 229920000126 latex Polymers 0.000 description 3
- 239000004816 latex Substances 0.000 description 3
- 244000043261 Hevea brasiliensis Species 0.000 description 2
- 241000219492 Quercus Species 0.000 description 2
- 238000013016 damping Methods 0.000 description 2
- 229920001821 foam rubber Polymers 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 229920003052 natural elastomer Polymers 0.000 description 2
- 229920001194 natural rubber Polymers 0.000 description 2
- 238000009418 renovation Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 229920002994 synthetic fiber Polymers 0.000 description 2
- 239000012209 synthetic fiber Substances 0.000 description 2
- 239000002023 wood Substances 0.000 description 2
- 241000336896 Numata Species 0.000 description 1
- 239000004952 Polyamide Substances 0.000 description 1
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 description 1
- 229920006221 acetate fiber Polymers 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000002238 attenuated effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000003670 easy-to-clean Effects 0.000 description 1
- 238000004049 embossing Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000005187 foaming Methods 0.000 description 1
- 239000004088 foaming agent Substances 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 239000012510 hollow fiber Substances 0.000 description 1
- 238000004898 kneading Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000010907 mechanical stirring Methods 0.000 description 1
- 239000011120 plywood Substances 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920006149 polyester-amide block copolymer Polymers 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 229920003051 synthetic elastomer Polymers 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- 239000005061 synthetic rubber Substances 0.000 description 1
- 210000002268 wool Anatomy 0.000 description 1
Landscapes
- Floor Finish (AREA)
- Laminated Bodies (AREA)
Description
【発明の詳細な説明】 （産業上の利用分野） 本発明は床材用緩衝部材に関する。より詳しくは、遮
音、防音性に優れた床材用の緩衝部材に関する。Description: TECHNICAL FIELD The present invention relates to a cushioning member for flooring. More specifically, the present invention relates to a cushioning member for flooring having excellent sound insulation and soundproofing properties.
（従来の技術） 一戸建住宅やマンションなどの集合住宅の床材として
は、樹脂タイル、量、カーペット、木質系床材などが使
われているが、中でも木質系床材は、ダニの発生がな
く、掃除もし易く、清潔であるため、近年、新築時のみ
ならずリフォームの際にもその需要が増加している。(Conventional technology) Resin tile, quantity, carpet, wood flooring, etc. are used as flooring for apartment houses such as detached houses and condominiums. In addition, since it is easy to clean and clean, the demand has been increasing in recent years not only at the time of new construction but also at the time of renovation.
ところで床材を選択する場合、騒音が下階へ伝わらな
いように配慮が必要となる。このような騒音には、子供
が飛び跳ねたり走り回ったりする際に生じる重衝撃音
と、椅子の引きずりやスプーンの落下により生じる軽衝
撃音とがある。重衝撃音の伝わる程度は、主として建物
の基本的構造体に依存するが、軽衝撃音の伝わる程度は
床材の材質や構造にも大きく依存する。従って、従来よ
り床材に緩衝部材を使用したり、床を特殊構造にする等
により軽衝撃音の伝搬を防止することが種々試みられて
いる。By the way, when selecting flooring materials, care must be taken to prevent noise from being transmitted to lower floors. Such noises include a heavy impact sound generated when a child jumps or runs around, and a light impact sound generated by dragging a chair or dropping a spoon. The degree to which a heavy impact sound is transmitted mainly depends on the basic structure of a building, but the degree to which a light impact sound is transmitted largely depends on the material and structure of a floor material. Therefore, various attempts have heretofore been made to prevent the transmission of a light impact sound by using a cushioning member as a floor material or making the floor a special structure.
例えば、木質系床材の直貼り床（厚みが薄く、直接コ
ンクリートスラブ等に貼る床、総床厚10〜30mm）の場合
には、緩衝部材として１層構造のゴム発泡体やフェルト
等が使用されている。また、支持脚付きパネルを使用し
た二重床（総床厚70〜160mm）等のように緩衝部材を使
用した下地付構造の床も提案されている。For example, in the case of a wooden floor material directly attached floor (thin thickness, a floor directly attached to a concrete slab, etc., total floor thickness of 10 to 30 mm), a rubber foam or felt having a one-layer structure is used as a cushioning member. Have been. Also, floors with a base structure using cushioning members, such as double floors (total floor thickness 70 to 160 mm) using panels with supporting legs, have been proposed.
（発明が解決しようとする課題） しかしながら、従来の下地付構造の床は、遮音・防音
性能に関しては比較的良好なものがあるが、コストが高
いという欠点があった。また、下地付構造の床を施工す
るには熱練を要する場合が多いという欠点もあった。更
に、このような下地付構造の床は、その厚みが厚いた
め、ドアや窓の床面が上がって開口部の高さが低くなる
という欠点があった。特に、リフォーム時には、床面が
上がるためにドアの取り替え等を強いられるということ
が問題となっていた。(Problems to be Solved by the Invention) However, some floors with a conventional underlayer structure have relatively good sound insulation and sound insulation performance, but have a disadvantage of high cost. In addition, there is also a drawback that hot kneading is often required to construct a floor having a subbed structure. Further, the floor having such a structure with a base has a drawback that the thickness of the floor is large, so that the floor of the door or window rises and the height of the opening decreases. In particular, at the time of renovation, there has been a problem in that the replacement of doors or the like is forced due to the rise of the floor surface.
一方、直貼り床において従来の緩衝部材を使用したも
のは、一般にコストは低いが、遮音・防音効果が十分で
ないという欠点があった。これに対してゴムの発泡体等
の緩衝部材の厚みを厚くすることも行われているが、フ
ローリグ全体のたわみが大きくなり、長期使用の結果、
床の反り、凹み、目すき等が生じやすくなるという欠点
があった。また、緩衝部材の厚さを増加させることは、
材料コストを低減させる障害となっていた。On the other hand, those in which a conventional cushioning member is used for a directly pasted floor are generally low in cost, but have a drawback that the sound insulation and sound insulation effects are not sufficient. On the other hand, the thickness of a cushioning member such as a rubber foam is also increased, but the entire flex of the flow rig becomes large, and as a result of long-term use,
There is a drawback that the floor is likely to be warped, dented, or blinded. Also, increasing the thickness of the cushioning member
This has been an obstacle to reducing material costs.
本発明は、以上のような従来技術の問題点を解決しよ
うとするものであり、軽衝撃音を効果的に遮音・防音す
ることのできる床材緩衝部材を低コストで提供すること
を目的としている。The present invention has been made to solve the problems of the related art as described above, and an object of the present invention is to provide a low-cost flooring cushioning member capable of effectively insulating and preventing light impact noise. I have.
（課題を解決するための手段） このような目的は、以下に示す本発明により達成され
た。(Means for Solving the Problems) Such an object has been achieved by the present invention described below.
即ち、本発明は、不織布層上に発泡体部材が設けられ
た床材用緩衝部材において、不織布層は発泡体部材より
も高い圧縮率を有し、且つ発泡体部材は不織布層の一部
が露出するように設けられていることを特徴とする床材
用緩衝部材を提供する。That is, the present invention provides a cushioning member for a floor material in which a foam member is provided on a nonwoven layer, wherein the nonwoven layer has a higher compression ratio than the foam member, and the foam member has a part of the nonwoven layer. Provided is a cushioning member for flooring, which is provided so as to be exposed.
本発明の床材用緩衝部材は、例えば、第１図又は第２
図に示されるように、不織布層（１）とその上に設けら
れた発泡体部材（２）とから構成される。FIG. 1 or FIG.
As shown in the figure, it is composed of a nonwoven fabric layer (1) and a foam member (2) provided thereon.
このような本発明の床材用緩衝部材は、その使用に際
し、表面プリント合板や樹脂タイル（図示せず）等の床
表面部材に対して、不織布層又は発泡体部材のいずれ側
から接着してもよいが、遮音・防音性を高め、接着性を
容易にする等の観点から不織布層側から接着するのが好
ましい。In use, the cushioning member for flooring of the present invention adheres to a floor surface member such as a surface printed plywood or a resin tile (not shown) from either the nonwoven fabric layer or the foam member. However, it is preferable to adhere from the nonwoven fabric layer side from the viewpoints of enhancing sound insulation and sound insulation and facilitating adhesion.
不織布層（１）は通常のウール等の天然繊維、アセテ
ート繊維等の半合成繊維、ポリエステルやポリアミド繊
維等の合成繊維又はそれらの混合物から形成されたもの
が使用できる。また、繊維として中空繊維を使用した場
合には、繊維そのものの弾性率が向上し、中空部の遮音
効果を利用できるのでより好ましい。As the nonwoven fabric layer (1), those formed from natural fibers such as ordinary wool, semi-synthetic fibers such as acetate fibers, synthetic fibers such as polyester and polyamide fibers, or a mixture thereof can be used. Further, when hollow fibers are used as the fibers, the elastic modulus of the fibers themselves is improved, and the sound insulation effect of the hollow portions can be utilized, which is more preferable.
また、不織布層（１）は、一般的な製法により製造さ
れたものを使用できるが、ニードルパンチ法や、カード
ウエブを積層して熱融着により形成したもの（積層式不
織布）が好ましい。特に、積層式不織布の場合には、床
表面からの軽衝撃音を下階方向ではなく繊維の方向（床
の平行方向）に拡散させ易いのでより好ましい遮音・防
音効果が得られる。As the nonwoven fabric layer (1), a nonwoven fabric manufactured by a general manufacturing method can be used. However, a material obtained by laminating card webs and heat-sealing a card web (laminated nonwoven fabric) is preferable. In particular, in the case of a laminated nonwoven fabric, light impact sound from the floor surface is easily diffused not in the lower floor direction but in the fiber direction (parallel direction of the floor), so that a more preferable sound insulation / soundproof effect can be obtained.
不織布層（１）の厚みは、繊維の種類等にも依存する
が、約１〜10mmの厚みが、コスト、クッション性および
遮音性の点から好ましい。このときの目付量は約50〜10
00g/m2、見かけ密度は約0.005〜0.1g/cm3である。厚み
が薄すぎると、遮音・防音効果、さらにクッション性に
も乏しいものとなってしまう。逆に厚過ぎると、床の反
りや、凹みを招く結果となる。The thickness of the nonwoven fabric layer (1) depends on the type of fiber and the like, but a thickness of about 1 to 10 mm is preferable from the viewpoint of cost, cushioning properties, and sound insulation. The basis weight at this time is about 50 to 10
00 g / m 2 , apparent density is about 0.005-0.1 g / cm 3 . If the thickness is too thin, the sound insulation / sound insulation effect and the cushioning properties will be poor. Conversely, if the thickness is too large, the floor may be warped or dented.
一方、発泡体部材（２）は、天然ゴムフォーム、SB
R、NBR等の合成ゴムフォーム、ポリ塩化ビニール、ポリ
ウレタン等の合成樹脂フォームを使用することができ
る。またこれらの発泡倍率は、原料の種類にも依存する
が、適度の剛性、硬度を維持する上で一般に約２〜５
倍、好ましくは３倍とする。なお、このような発泡体部
材を形成するための組成物としては種々のものを使用で
きるが、例えば、天然ゴムの水性ラテックス（固形分68
％）を使用することができ、整泡剤や界面活性剤を適宜
添加することができる。On the other hand, the foam member (2) is made of natural rubber foam, SB
Synthetic rubber foams such as R and NBR, and synthetic resin foams such as polyvinyl chloride and polyurethane can be used. The expansion ratio depends on the type of raw material, but is generally about 2 to 5 in order to maintain appropriate rigidity and hardness.
Times, preferably three times. Various compositions can be used as a composition for forming such a foamed member. For example, an aqueous latex of natural rubber (solid content of 68%) can be used.
%), And a foam stabilizer and a surfactant can be appropriately added.
また、本発明において、発泡体部材（２）は、不織布
層（１）の全面を覆うように設けられているのではなく
（第３図参照）、不織布層（１）の一部が露出するよう
に不織布層（１）上に設けられている。例えば、第１図
の態様の場合には、複数のライン形状の発泡体部材
（２）が不織布層（１）上に設けられており、互いに隣
接するライン形状の発泡体部材（２）の間の不織布層
（１）の表面（1a）が露出している。また、第２図の態
様の場合には、複数のドット形状の発泡体部材（２）が
不織布層（１）上に設けられており、ドット形状の各発
泡体部材（２）の周囲の不織布層（１）の表面（1a）が
露出している。In the present invention, the foam member (2) is not provided so as to cover the entire surface of the nonwoven fabric layer (1) (see FIG. 3), and a part of the nonwoven fabric layer (1) is exposed. Is provided on the nonwoven fabric layer (1). For example, in the case of the embodiment shown in FIG. 1, a plurality of line-shaped foam members (2) are provided on the nonwoven fabric layer (1), and between the line-shaped foam members (2) adjacent to each other. The surface (1a) of the nonwoven fabric layer (1) is exposed. In the case of the embodiment of FIG. 2, a plurality of dot-shaped foam members (2) are provided on the nonwoven fabric layer (1), and the nonwoven fabric around each of the dot-shaped foam members (2) is provided. The surface (1a) of the layer (1) is exposed.
このように設けられた発泡体部材（２）と不織布層
（１）とからなる床材用緩衝部材を、例えば、不織布層
（１）が床材に接するように床裏に実際に布設すると、
不織層（１）を伝わってきた音は、不織布層（１）の露
出した部分（1a）から空気中に拡散するものと発泡体部
材（２）に伝わるものとに分離することができる。従っ
て、音の減衰効果をより向上させることができる。When a cushioning member for flooring composed of the foam member (2) and the nonwoven fabric layer (1) provided as described above is actually laid on the floor back so that the nonwoven fabric layer (1) is in contact with the flooring material,
The sound transmitted through the nonwoven layer (1) can be separated into one that diffuses into the air from the exposed portion (1a) of the nonwoven layer (1) and one that transmits to the foam member (2). Therefore, the sound attenuation effect can be further improved.
また、発泡体部材（２）が設けられた側の不織布層
（１）の表面積をＳとし、不織布層（１）の露出面積を
Saとしたときに、以下の式 発泡体部材の面積比率＝｛（Ｓ−Sa）/S｝×100 で定義される、不織布層（１）に対する発泡体部材
（２）の面積比率は、30〜90％であることが好ましい。
この数値が小さすぎると、負荷がかかった場合に発泡体
部材（２）で不織布層（１）を十分に支持できず、発泡
体部材（２）が潰れ過ぎれ音の減衰効果を十分に発揮で
きない。一方、この数値が大きすぎると床材用緩衝部材
の発泡体部材（２）が潰れて互いに接触してしまうので
所望の遮音・防音効果が得られない。The surface area of the nonwoven fabric layer (1) on the side where the foamed member (2) is provided is defined as S, and the exposed area of the nonwoven fabric layer (1) is defined as S.
When Sa is used, the area ratio of the foam member (2) to the nonwoven fabric layer (1) is defined by the following formula: area ratio of the foam member = {(S−Sa) / S} × 100. Preferably it is ~ 90%.
If this value is too small, the nonwoven fabric layer (1) cannot be sufficiently supported by the foamed member (2) when a load is applied, and the foamed member (2) is too crushed to exert a sufficient sound damping effect. . On the other hand, if the value is too large, the foam members (2) of the cushioning member for flooring are crushed and come into contact with each other, so that the desired sound insulation / soundproof effect cannot be obtained.
なお、発泡体部材（２）の形状には、特に限定はなく
任意のものとすることができるが、大量生産に適した形
状としては、第１図に示したようなライン形状、第２図
に示したようなドット形状、あるいは格子形状（図示せ
ず）等を例示することができる。The shape of the foam member (2) is not particularly limited and may be any shape. Examples of a shape suitable for mass production include a line shape as shown in FIG. And a grid shape (not shown) as shown in FIG.
また本発明の床材用緩衝部材においては、不織布層
（１）の圧縮率が発泡体部材（２）のそれよりも高いこ
と、即ち不織布層（１）が発泡体部材（２）よりも圧縮
され易いことが必要である。これは次のような理由によ
る。即ち、不織布層（１）の圧縮率が低い（不織布層
（１）が固い）場合には、音が伝播しやすくなり十分な
遮音特性を実現しにくくなる。そのため、不織布層
（１）の圧縮率を高める必要がある。また、不織布層
（１）と発泡体部材（２）との圧縮率を同一とした場合
には、共振的現象により音の伝播が起こりやすくなり、
床材用緩衝部材としての音の減衰効果が減じる。このた
め、本発明においては、不織布層（１）の圧縮率を高め
て不織布層（１）と発泡体部材（２）との圧縮率を互い
に異ならせ、それにより両層の共振的現象を抑制し、音
の伝播を抑制する。この場合、不織布層よりも発泡体部
材（２）の圧縮率を大きくすることも考えられるが、圧
縮率の高い不織布層（１）にそれよりも更に圧縮率が高
い発泡体部材（２）を積層した場合には、床材用緩衝部
材全体が非常に柔らかくなりすぎて歩行感が低下する。In the cushioning member for flooring of the present invention, the compression ratio of the nonwoven fabric layer (1) is higher than that of the foamed member (2), that is, the nonwoven fabric layer (1) is more compressed than the foamed member (2). It must be easy to be done. This is for the following reasons. That is, when the compression ratio of the nonwoven fabric layer (1) is low (the nonwoven fabric layer (1) is hard), sound is easily transmitted, and it is difficult to realize sufficient sound insulation characteristics. Therefore, it is necessary to increase the compression ratio of the nonwoven fabric layer (1). Further, when the compression ratio of the nonwoven fabric layer (1) and that of the foam member (2) are the same, sound is easily transmitted due to a resonance phenomenon.
The sound attenuation effect as a floor cushioning member is reduced. Therefore, in the present invention, the compression ratio of the nonwoven fabric layer (1) is increased to make the compression ratios of the nonwoven fabric layer (1) and the foam member (2) different from each other, thereby suppressing the resonance phenomenon of both layers. And suppresses sound propagation. In this case, it is conceivable that the compression ratio of the foam member (2) is higher than that of the nonwoven fabric layer. However, the nonwoven fabric layer (1) having a higher compression ratio is provided with a foam member (2) having a higher compression ratio. In the case of stacking, the entire cushioning member for flooring becomes very soft, and the walking feeling is reduced.
従って、本発明の床材用緩衝部材においては、不織布
層（１）の圧縮率を発泡体部材（２）の圧縮率よりも大
きくする。このような構造の床材用緩衝部材が配された
床に衝撃が加えられたときには、まず、不織布層（１）
が圧縮され、次に発泡体部材（２）が圧縮されるという
２段階圧縮が生じ、その結果、音の伝播が抑制され、床
材用緩衝部材の音の減衰効果を向上させることができ
る。Therefore, in the cushioning member for flooring of the present invention, the compression ratio of the nonwoven fabric layer (1) is set higher than the compression ratio of the foam member (2). When an impact is applied to the floor on which the cushioning member for floor material having such a structure is arranged, first, the nonwoven fabric layer (1)
Is compressed, and then the foam member (2) is compressed. As a result, the propagation of sound is suppressed, and the sound damping effect of the cushioning member for flooring can be improved.
従って、不織布層（１）上に発泡体部材（２）を設け
る際には、それぞれが独立的に圧縮可能となるようにす
る。このため、発泡体部材形成用組成物を不織布層
（１）に塗布することにより発泡体部材（２）を不織布
層（１）上に形成する場合、発泡体部材成用組成物の粘
度をコントロールして、その組成物が不織布層（１）に
しみ込まないようにすることが必要となる。従って、こ
の場合の組成物の粘度は、一般的には約7000〜50000とc
psとするのが好ましい。Therefore, when the foamed members (2) are provided on the nonwoven fabric layer (1), each of them can be independently compressed. Therefore, when the foam member (2) is formed on the nonwoven fabric layer (1) by applying the foam member forming composition to the nonwoven fabric layer (1), the viscosity of the foam member composition is controlled. Then, it is necessary to prevent the composition from seeping into the nonwoven fabric layer (1). Therefore, the viscosity of the composition in this case is generally about 7000-50,000 and c
It is preferably ps.
本発明の床材用緩衝部材は、例えば以下に示すように
して製造することができる。即ち、発泡体部材形成用組
成物をあらかじめ所望の発泡倍率、粘度が得られるまで
オークスミキサーで撹拌する。そして発泡した組成物を
ドクターコーターを使用して、不織布にライン状に塗布
し、乾燥することにより本発明の床材用緩衝部材を製造
できる。あるいは、機械撹拌発泡により発泡させた樹脂
又は発泡剤を均一に混合した組成物を用いて、不織布上
にロータリースクリーン法により塗布し、過熱し、乾燥
することにより本発明の床材用緩衝部材を製造できる。The cushioning member for flooring of the present invention can be manufactured, for example, as described below. That is, the composition for forming a foamed member is previously stirred with an Oaks mixer until a desired expansion ratio and viscosity are obtained. The foamed composition is applied to a nonwoven fabric in a line using a doctor coater, and dried to produce the cushioning member for flooring of the present invention. Alternatively, using a composition obtained by uniformly mixing a resin or a foaming agent foamed by mechanical stirring foaming, the composition is applied to a nonwoven fabric by a rotary screen method, heated, and dried to thereby provide the flooring cushioning member of the present invention. Can be manufactured.
（作用） 本発明の床材用緩衝部材は、不織布層（１）とその上
に設けられた発泡体部材（２）とから構成され、しかも
発泡体部材（２）が設けられた側の不織布層（１）の表
面の一部が露出しているので、衝撃音を有効に遮音・防
音することが可能となる。更に、不織布層（１）の圧縮
率が発泡体部材（２）のそれよりも高いので、床材用緩
衝部材に衝撃が加えられたときには、まず不織布層
（１）が圧縮して衝撃音のエネルギーを吸収して減衰さ
せ、次に、発泡体部材（２）が圧縮して不織布層（１）
により減衰した衝撃音を再び吸収し減衰させる。その結
果、軽衝撃音を効果的に遮音・防音することが可能とな
る。(Function) The cushioning member for a flooring material of the present invention comprises a nonwoven fabric layer (1) and a foam member (2) provided thereon, and furthermore, the nonwoven fabric on the side on which the foam member (2) is provided. Since part of the surface of the layer (1) is exposed, it is possible to effectively shield and prevent impact sound. Furthermore, since the compression ratio of the nonwoven fabric layer (1) is higher than that of the foam member (2), when an impact is applied to the cushioning member for flooring, the nonwoven fabric layer (1) is first compressed to generate an impact sound. Energy is absorbed and attenuated, and then the foam member (2) is compressed and the nonwoven layer (1)
Again absorbs and attenuates the impact sound. As a result, it is possible to effectively shield and prevent light impact noise.
（実施例） 以下、本発明を実施例に基づいて具体的に説明する
が、本発明はこれに限定されるものではない。(Examples) Hereinafter, the present invention will be specifically described based on examples, but the present invention is not limited thereto.
実施例１ 太さ６デニールのポリエステル繊維を用い、ニードル
パンチ法により、目付250g/m2、厚さ5mm、見かけ密度0.
05g/cm3の不織布を製造した。これとは別に、NRの水性
ラテックス（固形量68％）をオークスミキサー（沼田化
学製）を用いて、発泡倍率3.0となるように機械撹拌発
泡させた。このときの粘度は25,000cpsであった。Example 1 A polyester fiber having a thickness of 6 deniers was used, and the needle density was 250 g / m 2 , the thickness was 5 mm, and the apparent density was 0.
A non-woven fabric of 05 g / cm 3 was produced. Separately, an aqueous latex of NR (solid content 68%) was mechanically stirred and foamed using an Oaks mixer (manufactured by Numata Chemical Co., Ltd.) so that the expansion ratio was 3.0. At this time, the viscosity was 25,000 cps.
この発泡ラテックスをドクターコーターを用いて前述
の不織布に、乾燥厚さ3mm、発泡体層の表面比率60％に
なるように塗布して乾燥し、本発明の床材用緩衝部材を
得た。なお発泡体部材はライン形状であり、発泡体部材
の間では、図１に示すように不織布層が露出していた。
また、得られた床材用緩衝部材の不織布層の圧縮率は、
発泡体部材の圧縮率よりも大きいものであった。The foamed latex was applied to the above-mentioned nonwoven fabric using a doctor coater so as to have a dry thickness of 3 mm and a surface ratio of the foam layer of 60%, and was dried to obtain a cushioning member for flooring of the present invention. The foam member had a line shape, and the nonwoven fabric layer was exposed between the foam members as shown in FIG.
The compression ratio of the nonwoven fabric layer of the obtained cushioning member for flooring is
It was larger than the compression ratio of the foam member.
実施例２ 実施例１の不織布の代わりに、太さ13デニールの熱融
着性繊維のウエブを積層し、熱融着して製造した不織布
（目付180g/m2、厚さ5mm、見かけ密度0.025g/cm3）を用
いることを除いて、実施例１を繰り返し、本発明の床材
用緩衝部材を得た。なお、本実施例では、更にエンボス
加工を施し発泡体層を格子状に加工した。得られた床材
用緩衝部材の不織布層の圧縮率は、発泡体部材の圧縮率
よりも大きいものであった。Example 2 In place of the nonwoven fabric of Example 1, a nonwoven fabric manufactured by laminating a web of heat-fusible fibers having a thickness of 13 denier and heat-sealing (weight per unit area 180 g / m 2 , thickness 5 mm, apparent density 0.025) g / cm 3 ) except that g / cm 3 ) was used to obtain a cushioning member for flooring of the present invention. In this example, the foam layer was further processed into a lattice by embossing. The compression ratio of the nonwoven fabric layer of the obtained cushioning member for flooring was higher than the compression ratio of the foam member.
実施例３ 実施例２で使用した積層ウエブを熱融着せずにニード
ルパンチ加工することにより製造した不織布（目付200g
/m2、見かけ密度0.04g/cm3）を使用することを除いて、
実施例１を繰り返し、本発明の床材用緩衝部材を得た。
得られた床材用緩衝部材の不織布層の圧縮率は、発泡体
部材の圧縮率よりも大きいものであった。Example 3 Nonwoven fabric (200 g in weight) manufactured by subjecting the laminated web used in Example 2 to needle punching without heat fusion
/ m 2 , apparent density 0.04 g / cm 3 )
Example 1 was repeated to obtain a cushioning member for flooring of the present invention.
The compression ratio of the nonwoven fabric layer of the obtained cushioning member for flooring was higher than the compression ratio of the foam member.
（遮音・防音効果試験） 酢酸ビニル系樹脂接着剤を用いて、木質系ゆか仕上材
を形成した。そして、この床材に対して、JISA1418に従
って軽衝撃音の遮音のレベルを測定した。比較例１とし
て実施例１で使用した不織布のみを接着した床材につい
ても測定した。なお、測定結果の評価はJISA1419に従っ
て行った。その結果を以下の第１表に示す。 第１表 遮音等級 実施例１ Ｌ−45 ２ Ｌ−45 ３ Ｌ−45 比較例１ Ｌ−55 第１表中、Ｌ−45級の遮音レベルとは、生活実感とい
う点から言えば、床にはしが落下したときに生ずる音、
スリッパの音、ナイフの音は聞こえないが、それよりも
大きなサンダルの音がようやく聞こえる程度のレベルを
いう（音の大きさは、はしの落下音＜スリッパの音＜ナ
イフの音＜サンダルの音である）。またＬ−50級の遮音
レベルは、スリッパの音は聞こえないが、ナイフの音は
聞こえるレベルをいう。Ｌ−55級の遮音レベルとは、は
しの落下音は聞こえないがスリッパの音は聞こえるレベ
ルをいう。(Sound insulation / sound insulation effect test) Using a vinyl acetate resin adhesive, a wood-based yuka finish was formed. Then, the sound insulation level of the light impact sound was measured for the floor material according to JISA1418. As Comparative Example 1, the measurement was also performed on a floor material to which only the nonwoven fabric used in Example 1 was adhered. The evaluation of the measurement results was performed in accordance with JISA1419. The results are shown in Table 1 below. Table 1 Sound insulation grade Example 1 L-45 2 L-45 3 L-45 Comparative example 1 L-55 In Table 1, the sound insulation level of the L-45 class is on the floor in terms of real feeling of life. The sound that occurs when a chopstick falls,
The sound of the slippers and the knife is inaudible, but it is the level at which the sound of the larger sandals is finally heard. Sound). The L-50 class sound insulation level is a level at which the sound of a slipper is not heard but the sound of a knife is heard. The sound insulation level of the L-55 class is a level at which the falling sound of a chopstick is not audible but the sound of slippers is audible.
第１表の結果から、本発明の床材用緩衝部材は、その
全体の厚みが10〜30mm程度の薄い場合でも、１−45級の
遮音レベルを達成できることがわかる。従って、本発明
によれば、通常の使用状態で使用者からの苦情がほとん
ど出ず、下階への騒音を気がねする必要がない程に遮音
できる。From the results shown in Table 1, it can be seen that the floor cushioning member of the present invention can achieve a sound insulation level of 1-45 class even when the overall thickness is as thin as about 10 to 30 mm. Therefore, according to the present invention, in a normal use state, there is almost no complaint from the user, and the sound can be shielded so that there is no need to worry about the noise to the lower floor.
（発明の効果） 本発明の床材用緩衝部材によれば、軽衝撃音を低コス
トで効率的に遮断・防音することができる。(Effect of the Invention) According to the cushioning member for flooring of the present invention, light impact noise can be efficiently cut off and soundproof at low cost.
第１図は、本発明の床材用緩衝部材の概略斜視図であ
る。第２図は、本発明の床材用緩衝部材の別の例の概略
斜視図である。第３図は、不織布層が露出していない比
較例の床材用緩衝部材の概略斜視図である。 １……不織布層、1a……不織布層の露出表面、２……発
泡体部材FIG. 1 is a schematic perspective view of a cushioning member for flooring of the present invention. FIG. 2 is a schematic perspective view of another example of the cushioning member for flooring of the present invention. FIG. 3 is a schematic perspective view of a cushioning member for floor material of a comparative example in which the nonwoven fabric layer is not exposed. 1 ... non-woven fabric layer, 1a ... exposed surface of non-woven fabric layer, 2 ... foam member
フロントページの続き (72)発明者 斎所 裕 東京都豊島区東池袋３―１―１ ダイニ ック株式会社東京本社内 (72)発明者 平尾 孝 大阪府大阪市中央区高麗橋２―６―10 ダイニック株式会社大阪支社内 (56)参考文献 特開 平３−253662（ＪＰ，Ａ)Continuation of the front page (72) Inventor Hiroshi Saisho 3-1-1 Higashi-Ikebukuro, Toshima-ku, Tokyo Dynick Co., Ltd. Tokyo Head Office (72) Inventor Takashi Hirao 2-6-10 Koraibashi, Chuo-ku, Osaka-shi, Osaka Osaka Branch Office (56) References JP-A-3-253662 (JP, A)
Claims (5)
用緩衝部材において、不織布層は発泡体部材よりも高い
圧縮率を有し、且つ発泡体部材は不織布層の一部が露出
するように設けられていることを特徴とする床材用緩衝
部材。In a cushioning member for flooring having a foam member provided on a nonwoven fabric layer, the nonwoven fabric layer has a higher compression ratio than the foam material member, and the foam material member has a part of the nonwoven fabric layer exposed. A cushioning member for flooring, characterized in that the cushioning member for flooring is provided.
状又はドット形状である特許請求の範囲第１項記載の床
材用緩衝部材。2. The cushioning member for flooring according to claim 1, wherein the shape of the foam member is a line shape, a lattice shape or a dot shape.
面積をＳとし、不織布層の露出面積をSaとしたときに、
以下の式 発泡体部材の面積比率＝｛（Ｓ−Sa）/S｝×100 で定義される、不織布層に対する発泡体部材の面積比率
が30〜90％である特許請求の範囲第１項又は第２項記載
の床材用緩衝部材。3. When the surface area of the nonwoven fabric layer on the side where the foam member is provided is S and the exposed area of the nonwoven fabric layer is Sa,
The area ratio of the foam member to the nonwoven fabric layer defined by the following formula: area ratio of foam member = {(S−Sa) / S} × 100, wherein the area ratio of the foam member is 30 to 90%. 3. The cushioning member for floor material according to claim 2.
れている特許請求の範囲第１項〜第３項のいずれかに記
載の床材用緩衝部材。4. The cushioning member for floor material according to claim 1, wherein the nonwoven fabric layer is formed by a needle punch method.
ことにより形成されている特許請求の範囲第１項〜第４
項のいずれかに記載の床材用緩衝部材。5. The non-woven fabric layer according to claim 1, wherein the non-woven fabric layer is formed by laminating and heat-sealing the webs.
Item 4. The cushioning member for floor material according to any one of Items 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2072625A JP2715391B2 (en) | 1990-03-22 | 1990-03-22 | Buffer material for flooring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2072625A JP2715391B2 (en) | 1990-03-22 | 1990-03-22 | Buffer material for flooring |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03271459A JPH03271459A (en) | 1991-12-03 |
| JP2715391B2 true JP2715391B2 (en) | 1998-02-18 |
Family
ID=13494759
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2072625A Expired - Lifetime JP2715391B2 (en) | 1990-03-22 | 1990-03-22 | Buffer material for flooring |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2715391B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002129740A (en) * | 2000-10-20 | 2002-05-09 | Matsushita Electric Works Ltd | Soundproof floor material equipped with floor heating function |
| WO2022065487A1 (en) * | 2020-09-25 | 2022-03-31 | 三菱ケミカル株式会社 | Sound-insulating structural body |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2872732B2 (en) * | 1990-03-01 | 1999-03-24 | 積水化学工業株式会社 | Wooden soundproof flooring and soundproofing base material |
-
1990
- 1990-03-22 JP JP2072625A patent/JP2715391B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH03271459A (en) | 1991-12-03 |
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