JPH05140847A - Production of nonwoven fabric for use in flooring - Google Patents
Production of nonwoven fabric for use in flooringInfo
- Publication number
- JPH05140847A JPH05140847A JP32822191A JP32822191A JPH05140847A JP H05140847 A JPH05140847 A JP H05140847A JP 32822191 A JP32822191 A JP 32822191A JP 32822191 A JP32822191 A JP 32822191A JP H05140847 A JPH05140847 A JP H05140847A
- Authority
- JP
- Japan
- Prior art keywords
- woven fabric
- flooring
- fibers
- heat
- sound
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Floor Finish (AREA)
- Nonwoven Fabrics (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】この発明は、床材用不織布に関す
る。さらに詳しくは、この発明は、遮音・防音性に優
れ、切削性にも優れた床材用緩衝部材として好適な床材
用不織布に関する。TECHNICAL FIELD The present invention relates to a nonwoven fabric for flooring. More specifically, the present invention relates to a non-woven fabric for flooring, which is excellent in sound insulation and sound insulation and is also excellent in machinability and is suitable as a cushioning member for flooring.
【０００２】[0002]
【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、畳、カーペット、木質系
床材等が使われているが、中でも木質系床材は、ダニの
発生の心配がなく、掃除がし易く、清潔であるため、近
年、新築時のみなずリフォーム時にもその需要が増加し
ている。2. Description of the Related Art Resin tiles, tatami mats, carpets, and wood-based floor materials are used as floor materials for detached houses and condominiums. Among them, the wood-based floor materials are Since there is no need to worry, it is easy to clean and is clean, the demand for it is increasing in recent years, not only when it is newly built but also when it is remodeled.
【０００３】ところで、床材の施工に際しては、騒音が
階下へ伝わらないようにする配慮が必要となる。このよ
うな床の騒音としては、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、椅子の引き摺りやスプー
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
りするなどして軽衝撃音の伝搬を防止することが種々試
みられている。中でも、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）は、住居用の床材として広く利用されてい
るが、このような直貼り床に使用されている緩衝部材と
しては、数デニール程度の太さのシース／コアタイプの
ポリエステル系熱融着繊維を約１５〜３０重量％含有し
た不織布が使用されている。By the way, when constructing a floor material, it is necessary to consider that noise is not transmitted to the downstairs. Such floor noise includes 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 of transmission of heavy impact sound depends mainly on the basic structure of the building,
The degree to which the light impact sound is transmitted largely depends on the material and structure of the floor material. Therefore, conventionally, various attempts have been made to prevent the propagation of light impact sound by using a cushioning member for the floor material. Above all, floors of wood flooring that are directly attached (thickness is thin, floors that are directly attached to concrete slabs, total floor thickness 10
.About.30 mm) is widely used as a floor material for homes, but as a cushioning member used for such a direct-applied floor, a sheath / core type polyester heat-melting material having a thickness of about several denier is used. A non-woven fabric containing about 15 to 30% by weight of fiber is used.
【０００４】このような不織布は、前述の熱融着繊維を
均一に混綿したカードウェブを１０〜２０層程度積層
し、その積層体の層間剥離を防止するために両面からニ
ードルパンチを行い、更に熱融着繊維どうしを融着させ
るために熱風で乾熱処理することにより製造されてい
る。Such a non-woven fabric is formed by laminating about 10 to 20 layers of a card web obtained by uniformly mixing the above-mentioned heat-sealing fibers, and performing needle punching from both sides to prevent delamination of the laminated body. It is manufactured by performing dry heat treatment with hot air in order to fuse the heat fusion fibers.
【０００５】[0005]
【発明が解決しようとする課題】しかしながら、このよ
うな従来の床材用不織布は、５０〜１５０Ｐ／ｃｍ２と
いう非常に多数回のニードルパンチを行うので不織布が
堅くなり、しかも縦方向の繊維の絡みが増加して縦方向
に音が伝播しやすくなり、遮音・防音性が低下するとい
う問題があった。However, in such a conventional non-woven fabric for flooring, the non-woven fabric is stiff because it is needle-punched a large number of times of 50 to 150 P / cm 2 , and the longitudinal non-woven fabric is There was a problem that the entanglement increased and sound was easily propagated in the vertical direction, resulting in deterioration of sound insulation and sound insulation.
【０００６】また、従来の不織布には切削性が非常によ
くないという問題もあった。即ち、一般に、不織布を木
質系表面材に貼り付けた所謂直貼り床材を現場で施工す
る際には、木質系表面材とともに不織布を同時に電気の
こぎり等で切断することが行われているが、そのような
場合にのこぎりの刃により不織布が毛羽立つ所謂「糸
引」が生じるという問題があった。現場作業中にこのよ
うな糸引現象が生ずると、毛羽立った繊維を切り取った
りしなければならない等の作業性の低下が引き起こされ
る。Further, there is a problem that the conventional non-woven fabric has very poor machinability. That is, in general, when a so-called direct-adhesive flooring material in which a non-woven fabric is attached to a wood-based surface material is constructed on site, the non-woven fabric is cut together with the wood-based surface material at the same time with an electric saw or the like. In such a case, there is a problem that a so-called "threading" occurs in which the nonwoven fabric is fluffed by the saw blade. When such a stringing phenomenon occurs during on-site work, workability is deteriorated, for example, fluffy fibers must be cut off.
【０００７】糸引が生じないようにするためには、不織
布を構成する繊維どうしの結合力を増せばよいので、そ
のために熱融着繊維の含量を増加させて従来と同様にニ
ードルパンチ及び乾熱処理を行うことも考えられるが、
この場合には不織布のバルキー性が低下し、不織布自体
が堅くなり防音性が低下するという問題が生ずる。ま
た、熱融着繊維の含量を増加させ、ニードルパンチ処理
をすることなく乾熱処理することにより不織布とするこ
とも行われているが、この場合には切削性や防音性能は
低下しないが、カードウェブどうしの層間剥離の問題が
生ずる。In order to prevent the stringing, it is necessary to increase the binding force between the fibers constituting the non-woven fabric. Therefore, the content of the heat-sealing fibers is increased, and the needle punching and the dry heat treatment are performed as in the conventional case. It is possible to do
In this case, the bulkiness of the non-woven fabric deteriorates, and the non-woven fabric itself becomes stiff and the soundproofing property deteriorates. In addition, the content of the heat-sealing fibers is increased, and a non-woven fabric is also produced by dry heat treatment without needle punching treatment, but in this case, the machinability and soundproofing performance are not deteriorated, but the card The problem of delamination between webs arises.
【０００８】この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、軽衝撃音に対する遮音
・防音性に優れ、且つ切削性に優れしかもウェブの層間
剥離の問題が生じない床材用緩衝部材として好適な不織
布を製造できるようにすることを提供することを目的と
している。The present invention is intended to solve the problems of the prior art as described above, and is excellent in sound insulation and soundproofing against light impact noise, excellent in machinability, and free from the problem of delamination of the web. An object of the present invention is to provide a non-woven fabric suitable as a cushioning member for flooring.
【０００９】[0009]
【課題を解決するための手段】この発明者は、従来より
量的に多くの熱融着繊維を混綿したカードウェブの積層
体を、従来に比べ少ない回数のニードルパンチを行い、
更に積層体に対し熱処理を行うことにより上述の目的が
達成できることを見出し、この発明を完成させた。The present inventor has carried out needle punching of a laminate of a card web in which a large amount of heat-sealing fibers is blended in a quantity smaller than that in the prior art, by performing needle punching a smaller number of times than in the prior art.
Further, they have found that the above-mentioned object can be achieved by heat-treating the laminated body, and completed the present invention.
【００１０】即ち、この発明は、熱融着繊維を少なくと
も５０重量％配合したカードウェブの積層体に対し５０
Ｐ／ｃｍ２未満でニードルパンチし、その後で積層体に
対し熱処理を行うことを特徴とする床材用不織布の製造
方法を提供する。That is, according to the present invention, 50% by weight is used for a laminate of a card web containing at least 50% by weight of heat-sealing fibers.
Provided is a method for producing a nonwoven fabric for flooring, which comprises needle-punching at less than P / cm 2 and then heat-treating the laminate.
【００１１】以下、この発明を詳細に説明する。The present invention will be described in detail below.
【００１２】この発明の床材用不織布の製造方法におい
ては、まず、常法に従って、熱融着繊維を混綿したカー
ドウェブの積層体を形成する。この場合、熱融着繊維の
含量は少なくとも５０重量％、好ましくは７０重量％以
上とする。熱融着繊維の含量がこの範囲を下回ると、熱
融着後の不織布を構成する繊維どうしの結合力が弱まり
切削性が低下する。このような熱融着繊維としては、例
えばポリエステル系融着繊維、ポリアミド系融着繊維、
ポリプロピレン／ポリエチレン融着繊維等のポリオレフ
ィン系融着繊維を使用することができる。なかでも嵩高
性、圧縮弾性の点でポリオレフィン系融着繊維を使用す
ることが好ましい。In the method for producing a non-woven fabric for flooring according to the present invention, first, a laminate of card webs containing heat-fusible fibers is formed by a conventional method. In this case, the content of the heat fusion fiber is at least 50% by weight, preferably 70% by weight or more. When the content of the heat-sealing fibers is below this range, the bonding force between the fibers constituting the non-woven fabric after heat-sealing is weakened and the machinability deteriorates. Examples of such heat fusion fibers include polyester fusion fibers, polyamide fusion fibers,
Polyolefin-based fused fibers such as polypropylene / polyethylene fused fibers can be used. Above all, it is preferable to use the polyolefin-based fused fiber in terms of bulkiness and compression elasticity.
【００１３】使用する熱融着繊維の太さは、不織布の使
用目的などにより異なるが、一般的には３〜７０デニー
ルのものを使用する。なお、熱融着繊維として、太さの
異なるものを混合して使用することが好ましい。例え
ば、２０デニールのものと数デニールのものとを併用す
ると、低いデニールの熱融着繊維が不織布中の融着点を
増加させるので不織布の切削性をより向上させることが
でき、高いデニールの熱融着繊維は不織布の見掛け密度
を低下させることができ、更に融着点を減少させること
もできるので床の垂直方向の音の伝播を減少させ、その
結果不織布の防音性能を向上させることができる。The thickness of the heat-fusible fiber to be used varies depending on the purpose of use of the non-woven fabric, but is generally 3 to 70 denier. As the heat-sealing fibers, it is preferable to mix and use fibers having different thicknesses. For example, when a denier of 20 denier and a denier of several denier are used in combination, the low denier heat-sealing fibers increase the fusion point in the nonwoven fabric, so that the machinability of the nonwoven fabric can be further improved and the high denier heat Fused fibers can reduce the apparent density of the non-woven fabric, and can further reduce the fusion point, so that the sound propagation in the vertical direction of the floor can be reduced, and as a result, the sound insulation performance of the non-woven fabric can be improved. ..
【００１４】なお、積層するカードウェブの層数は、使
用する熱融着繊維の種類やデニール構成、フリース目付
等にもよるが、１０〜４０層と多層構造にすることが好
ましい。これにより吸音・遮音性を向上させることがで
きる。The number of layers of the card web to be laminated depends on the kind of the heat-sealing fibers to be used, the denier structure, the fleece weight, etc., but it is preferable to have a multilayer structure of 10 to 40 layers. As a result, sound absorption and sound insulation can be improved.
【００１５】上述の熱融着繊維は他の繊維と混綿しても
よいが、着色が容易であり、また安価に入手できるとい
う点から、ポリアミド繊維、ポリエステル繊維またはポ
リプロピレン繊維を使用することが好ましい。The above-mentioned heat-fusible fibers may be mixed with other fibers, but it is preferable to use polyamide fibers, polyester fibers or polypropylene fibers because they are easy to color and can be obtained at low cost. ..
【００１６】次に、この発明においては、このような繊
維のカードウェブの積層体を、カードウェブの層間剥離
の問題が生じないようにニードルパンチする。この場
合、従来と同様な条件、即ち５０〜１５０Ｐ／ｃｍ２の
ニードルパンチを行うと不織布が堅くなり、しかも縦方
向の繊維の絡みが増加して縦方向に音が伝播し易くな
り、遮音・防音性が低下する。従って、この発明の製造
方法においては、カードウェブの層間剥離が生じず且つ
積層体が堅くなり過ぎないようにニードルパンチを行う
とともに、繊維の縦方向の絡みをできるだけ少なくする
必要がある。このためには、５０Ｐ／ｃｍ２が未満、好
ましくは３０Ｐ／ｃｍ２以下、より好ましくは１８〜２
０Ｐ／ｃｍ２でニードルパンチを行う。この際、ニード
ルパンチを積層体の片側だけから行ってもよいし両面か
ら行ってもよいが、製造工程の簡略化の点から片側から
だけから行うことが好ましい。Next, in the present invention, such a card web laminate of fibers is needle punched so that the problem of delamination of the card web does not occur. In this case, under the same conditions as in the prior art, that is, when needle punching at 50 to 150 P / cm 2 is performed, the non-woven fabric becomes stiff, and moreover, the entanglement of fibers in the longitudinal direction increases and the sound easily propagates in the longitudinal direction, resulting in sound insulation / Soundproofing is reduced. Therefore, in the manufacturing method of the present invention, it is necessary to perform needle punching so that delamination of the card web does not occur and the laminated body does not become too rigid, and it is necessary to minimize the entanglement of the fibers in the longitudinal direction. For this, 50 P / cm 2 is less than, preferably 30 P / cm 2 or less, more preferably 18 to 2
Needle punching is performed at 0 P / cm 2 . At this time, needle punching may be performed from only one side or both sides of the laminated body, but it is preferable to perform needle punching from only one side from the viewpoint of simplification of the manufacturing process.
【００１７】この発明では、ニードルパンチ処理の後に
熱処理、例えば熱風プレス処理を行う。熱処理は、カー
ドウェブを構成する繊維の種類、熱融着繊維の配合率、
ニードルパンチ条件等にもよるが、通常は温度１３０〜
１８０℃の熱風を不織布の中を通過させながらプレスす
ることにより行う。In the present invention, after the needle punching treatment, heat treatment, for example, hot air pressing treatment is performed. The heat treatment includes the types of fibers forming the card web, the blending ratio of the heat-sealing fibers,
Normally, the temperature is 130 ~
It is carried out by pressing while passing hot air of 180 ° C. through the nonwoven fabric.
【００１８】なお、ニードルパンチが積層体の片側だけ
から行われている場合には、積層体の加熱面をニードル
パンチが施された面、即ちニードルパンチ面とすること
が好ましい。これは、ニードルパンチ面の反対側は、繊
維が起毛状態にあるので、良好な熱融着処理が困難だか
らである。When the needle punching is performed from only one side of the laminated body, it is preferable that the heating surface of the laminated body is a needle punched surface, that is, a needle punched surface. This is because the fibers on the side opposite to the needle punched surface are in a napped state, so that a good heat fusion treatment is difficult.
【００１９】なお、不織布の目付量は、使用目的等によ
り異なるが、木質系の直貼り床に使用する場合には、不
織布としての厚みが数ｍｍ〜１５ｍｍが一般的であるこ
とから、１００〜１０００ｇ／ｍ２であることが好まし
い。この程度の目付量でこの発明の方法により不織布を
製造すると、床材用不織布として適当な厚みのものとす
ることができ、軽衝撃音に対する吸音性を高くでき、し
かも床材として適度な載荷性も有し、切削性も良好なも
のとすることが可能となる。The basis weight of the non-woven fabric varies depending on the purpose of use and the like, but when it is used for a wood-based direct-adhesion floor, the thickness of the non-woven fabric is generally several mm to 15 mm, and therefore 100- It is preferably 1000 g / m 2 . When the non-woven fabric is manufactured by the method of the present invention with the weight per unit area of this level, the non-woven fabric for the flooring material can be made to have an appropriate thickness, the sound absorbing property for the light impact sound can be enhanced, and the loading property as the flooring material is appropriate. Also, it becomes possible to improve the machinability.
【００２０】この発明の製造方法によって製造された床
材用不織布に対して、更に遮水・遮湿性層をラミネート
してもよい。これにより、コンクリート等の湿気をおび
やすい基材上に床材用不織布を設ける場合でも、基材と
不織布との間に遮水・遮湿性層を介在させることがで
き、容易に基材からの湿気の侵入を防止することが可能
となる。A water impermeability / moisture impermeable layer may be further laminated on the non-woven fabric for flooring produced by the production method of the present invention. As a result, even when a non-woven fabric for flooring is provided on a base material such as concrete that easily absorbs moisture, a water-impermeable / moisture-proof layer can be interposed between the base material and the non-woven fabric, and the base material can be easily removed from the base material. It is possible to prevent invasion of moisture.
【００２１】このような遮水・遮湿性層として、遮水・
遮湿能を有する任意の薄葉状材料を使用することができ
る。例えば、遮水・遮湿性高分子フィルムや、遮水・遮
湿性高分子発泡体シート等を好ましく使用できる。遮水
・遮湿性高分子フィルムとしては、例えば、ポリオレフ
ィン、ポリアミド等のホットメルトフィルムを使用する
ことができる。また、このようなフィルムを不織布にラ
ミネートするには、エポキシ系、クロロプレン系等の接
着剤を用いることができる。As such a water-impervious / moisture-impervious layer,
Any thin leaf material having a moisture barrier can be used. For example, a water-proof / moisture-proof polymer film or a water-proof / moisture-proof polymer foam sheet can be preferably used. As the water-impervious / moisture-proof polymer film, for example, a hot melt film of polyolefin, polyamide or the like can be used. To laminate such a film on a nonwoven fabric, an epoxy-based adhesive, a chloroprene-based adhesive or the like can be used.
【００２２】遮水・遮湿性高分子発泡体シートをラミネ
ートした場合には、遮水・遮湿性フィルムをラミネート
した場合と同様に基材からの湿気の侵入を防止できるよ
うになり、さらに床材のクッション性や吸音性を向上さ
せることも可能となる。When the water-blocking / moisture-blocking polymer foam sheet is laminated, it becomes possible to prevent the invasion of moisture from the base material as in the case of laminating the water-blocking / moisture-blocking film, and further, the floor material. It is also possible to improve the cushioning property and sound absorbing property of.
【００２３】このような遮水・遮湿性高分子発泡体シー
トとしては、独立気泡の樹脂層を好適に用いることがで
き、例えば、発泡ポリエチレン、発泡塩化ビニル、発泡
ラバー等の樹脂フォームとすることができる。またこの
ような高分子発泡体シートと不織布とをラミネートする
に際しては、ドライラミネートあるいはフレームラミネ
ート法等によればよく、あるいは発泡性樹脂組成物を不
織布にコートした後、発泡させるようにしてもよい。As such a water-proof / moisture-proof polymer foam sheet, a closed-cell resin layer can be preferably used. For example, resin foam such as foamed polyethylene, foamed vinyl chloride, foamed rubber, etc. can be used. You can Further, when laminating such a polymer foam sheet and a non-woven fabric, a dry laminating method or a frame laminating method may be used, or the non-woven fabric may be coated with a foamable resin composition and then foamed. ..
【００２４】なお、遮水・遮湿性層の厚みは、遮水・遮
湿性層を構成する材料、遮水・遮湿性層の形状にもよる
が、一般には３０μｍ〜５ｍｍである。The thickness of the water / moisture barrier layer is generally 30 μm to 5 mm, although it depends on the material forming the water / moisture barrier layer and the shape of the water / moisture barrier layer.
【００２５】[0025]
【作用】この発明の床材用不織布は、熱融着繊維を少な
くとも５０重量％配合しているので、熱融着後の不織布
を構成する繊維どうしの結合力を強化することができ、
切削性を改善することができる。また、カードウェブの
積層体を、それらが層間剥離しないような条件でニード
ルパンチ処理するので、カードウェブの層間剥離を防止
でき、しかも防音性を低下させない。Since the floor non-woven fabric of the present invention contains at least 50% by weight of the heat-sealing fiber, it is possible to strengthen the bonding force between the fibers constituting the non-woven fabric after heat-sealing,
The machinability can be improved. Further, the card web laminated body is subjected to the needle punching treatment under the condition that they are not peeled off from each other, so that the peeling off of the card web can be prevented and the soundproofing property is not deteriorated.
【００２６】[0026]
【実施例】以下、この発明を実施例に基づいて具体的に
説明するが、この発明はこれに限定されるものではな
い。EXAMPLES The present invention will be specifically described below based on examples, but the present invention is not limited thereto.
【００２７】実施例１ 太さ１８デニールのＥＳ繊維（ポリプロピレン／ポリエ
チレン融着繊維、チッソ株式会社）５０重量％と太さ６
デニールのＥＳ繊維２０重量％からなるカードウェブを
目付量２５０ｇ／ｍ２となるように３０層積層した。こ
の積層体に対して３０Ｐ／ｃｍ２でニードルパンチ処理
を行った。更に、熱融着繊維を熱融着させるために、１
４５℃の熱風を不織布中を通過させながらプレスした。Example 1 ES fiber having a thickness of 18 denier (polypropylene / polyethylene fused fiber, Chisso Corporation) 50% by weight and a thickness of 6
30 layers of a card web composed of 20% by weight of denier ES fiber were laminated so that the basis weight was 250 g / m 2 . The laminated body was subjected to needle punching treatment at 30 P / cm 2 . Further, in order to heat-bond the heat-bonded fibers, 1
It was pressed while passing hot air at 45 ° C through the nonwoven fabric.
【００２８】この床材用不織布をＪＩＳ Ａ１４１８に
従って軽衝撃音の遮音レベルを測定した。その結果、１
２５Ｈｚ、２５０Ｈｚ及び５００Ｈｚのオクターブ帯域
中心周波数に対する遮音性はそれぞれ、Ｌ値４５、４４
及び４０であり、Ｌ−４５等級という遮音性を示した。
ここで、Ｌ−４５等級の遮音レベルとは、生活実感とい
う点からいえば、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＜スリッパ音＜ナイ
フ音＜サンダル音である）。このように、この発明の床
材用不織布はＬ−４５等級の遮音レベルを達成でき、通
常の使用状態で使用者からの苦情がほとんどでず、階下
への騒音を気がねする必要がない程に遮音できる。The sound insulation level of the light impact sound of this non-woven fabric for flooring was measured according to JIS A1418. As a result, 1
Sound insulation properties for octave band center frequencies of 25 Hz, 250 Hz and 500 Hz are L values of 45 and 44, respectively.
And 40, showing sound insulation of L-45 grade.
Here, the sound insulation level of the L-45 grade is the sound generated when the chopsticks fall on the floor, in terms of actual living feeling,
The level at which the sound of slippers and knives cannot be heard, but the sound of sandals louder than that is finally heard. (The volume of the sound is the drop sound of chopsticks <slipper sound <knife sound <sandal sound. ). Thus, the non-woven fabric for flooring of the present invention can achieve a sound insulation level of L-45 grade, there is almost no complaint from the user in a normal use state, and there is no need to worry about noise downstairs. Can insulate sound.
【００２９】また、この床材用不織布を厚さ６．５ｍｍ
の化粧合板に酢酸ビニル系の接着剤で貼り付けて、合板
とともに電気のこぎりで切断したところ、糸引現象がほ
とんど生じず、その切削性は良好なものであった。Further, this non-woven fabric for flooring has a thickness of 6.5 mm.
When it was attached to the decorative plywood with a vinyl acetate adhesive and cut together with the plywood with an electric saw, the stringing phenomenon hardly occurred and the machinability was good.
【００３０】更に、同様にこの床材用不織布を貼り付け
た床材を現場で仮敷したところ不織布の層間剥離が生じ
なかった。Furthermore, when the floor material to which the non-woven fabric for flooring is attached is laid in the same manner on site, delamination of the non-woven fabric does not occur.
【００３１】実施例２ 太さ１８デニールのＥＳ繊維（ポリプロピレン／ポリエ
チレン融着繊維、チッソ株式会社）５５重量％と太さ６
デニールのＥＳ繊維１５重量％からなるカードウェブを
目付量２５０ｇ／ｍ２となるように３５層積層した。こ
の積層体に対して２０Ｐ／ｃｍ２でニードルパンチ処理
を行った。更に、熱融着繊維を熱融着させるために、１
４５℃の熱風を不織布中を通過させながらプレスした。Example 2 55 wt% ES fiber (polypropylene / polyethylene fused fiber, Chisso Corporation) having a thickness of 18 denier and a thickness of 6
A card web composed of 15% by weight of denier ES fiber was laminated in 35 layers so that the basis weight was 250 g / m 2 . This laminate was subjected to needle punching treatment at 20 P / cm 2 . Further, in order to heat-bond the heat-bonded fibers, 1
It was pressed while passing hot air at 45 ° C through the nonwoven fabric.
【００３２】この床材用不織布を実施例１と同様にＪＩ
Ｓ Ａ１４１８に従って軽衝撃音の遮音レベルを測定し
た。その結果、１２５Ｈｚ、２５０Ｈｚ及び５００Ｈｚ
のオクターブ帯域中心周波数に対する遮音性はそれぞ
れ、Ｌ値４４、４６及び４０であり、Ｌ−４５等級とい
う遮音性を示した。This non-woven fabric for flooring was used for JI as in Example 1.
The sound insulation level of the light impact sound was measured according to SA1418. As a result, 125Hz, 250Hz and 500Hz
The sound insulation properties for the octave band center frequency of were L values of 44, 46, and 40, respectively, and exhibited a sound insulation property of L-45 grade.
【００３３】また、この床材用不織布を厚さ６．５ｍｍ
の化粧合板に酢酸ビニル系の接着剤で貼り付けて、合板
とともに電気のこぎりで切断したところ、糸引現象がほ
とんど生じず、その切削性は良好なものであった。Further, this non-woven fabric for flooring has a thickness of 6.5 mm.
When it was attached to the decorative plywood with a vinyl acetate adhesive and cut together with the plywood with an electric saw, the stringing phenomenon hardly occurred and the machinability was good.
【００３４】更に、同様にこの床材用不織布を貼り付け
た床材を現場で仮敷したところ不織布の層間剥離が生じ
なかった。Further, when the floor material to which this non-woven fabric for flooring is stuck is also laid temporarily on site, delamination of the non-woven fabric does not occur.
【００３５】比較例１ ７５Ｐ／ｃｍ２でニードルパンチする以外は、実施例１
を繰り返すことにより床材用不織布を製造した。Comparative Example 1 Example 1 except that needle punching was performed at 75 P / cm 2.
By repeating the above, a nonwoven fabric for flooring materials was manufactured.
【００３６】この床材用不織布について実施例１と同様
に軽衝撃音の遮音レベルを測定した。その結果１２５Ｈ
ｚ、、２５０Ｈｚ及び５００Ｈｚのオクターブ帯域中心
周波数に対する遮音性は、それぞれＬ値５０，４８及び
４８であり、Ｌ−５０等級という遮音性を示した。The sound insulation level of the light impact sound was measured in the same manner as in Example 1 for this nonwoven fabric for flooring. As a result 125H
The sound insulation properties for the octave band center frequencies of z, 250 Hz, and 500 Hz were L values of 50, 48, and 48, respectively, and exhibited sound insulation properties of L-50 grade.
【００３７】比較例２ １３２Ｐ／ｃｍ２でニードルパンチする以外は、実施例
１を繰り返すことにより床材用不織布を製造した。Comparative Example 2 A non-woven fabric for flooring was manufactured by repeating Example 1 except that needle punching was performed at 132 P / cm 2 .
【００３８】この床材用不織布について実施例１と同様
に軽衝撃音の遮音レベルを測定した。その結果１２５Ｈ
ｚ、、２５０Ｈｚ及び５００Ｈｚのオクターブ帯域中心
周波数に対する遮音性は、それぞれＬ値５２，５０及び
４７であり、Ｌ−５０等級という遮音性を示した。The sound insulation level of the light impact sound of the non-woven fabric for flooring was measured in the same manner as in Example 1. As a result 125H
The sound insulation properties for the octave band center frequencies of z, 250 Hz, and 500 Hz were L values of 52, 50, and 47, respectively, and exhibited sound insulation properties of L-50 grade.
【００３９】[0039]
【発明の効果】この発明によれば、軽衝撃音に対する遮
音・防音性に優れ、且つ切削性に優れしかもウェブの層
間剥離の問題が生じない床材用緩衝部材としての不織布
を製造できる。According to the present invention, it is possible to manufacture a non-woven fabric as a cushioning member for a flooring material which is excellent in sound insulation and soundproofing against a light impact sound, excellent in cutting property and free from the problem of delamination of the web.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 平尾 孝 大阪府大阪市東区高麗橋３−28 ダイニツ ク株式会社大阪支社営業所内 (72)発明者 斎所 裕 東京都豊島区東池袋３−１−１ ダイニツ ク株式会社東京本社内 ─────────────────────────────────────────────────── ─── Continuation of front page (72) Takashi Hirao 3-28 Koraibashi, Higashi-ku, Osaka City, Osaka Prefecture Dinitsuku Co., Ltd. Osaka branch office (72) Inventor Hiroshi Saisho 3-1-1 Higashiikebukuro, Toshima-ku, Tokyo Ku Corporation Tokyo Head Office
Claims (2)
したカードウェブの積層体を、５０Ｐ／ｃｍ２未満でニ
ードルパンチし、更に該積層体に対し熱処理を行うこと
を特徴とする床材用不織布の製造方法。1. A flooring material, characterized in that a laminate of a card web containing at least 50% by weight of heat-sealing fibers is needle punched at less than 50 P / cm 2 , and the laminate is heat-treated. Method of manufacturing non-woven fabric.
行い、更に積層体のニードルパンチ面から熱風を通過さ
せながらプレスをすることにより熱処理を行う請求項１
記載の床材用不織布の製造方法。2. The heat treatment is carried out by performing needle punching from only one side of the nonwoven fabric and further pressing while passing hot air from the needle punched side of the laminate.
A method for producing the nonwoven fabric for flooring described.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP32822191A JP3106440B2 (en) | 1991-11-16 | 1991-11-16 | Manufacturing method of non-woven fabric for flooring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP32822191A JP3106440B2 (en) | 1991-11-16 | 1991-11-16 | Manufacturing method of non-woven fabric for flooring |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH05140847A true JPH05140847A (en) | 1993-06-08 |
| JP3106440B2 JP3106440B2 (en) | 2000-11-06 |
Family
ID=18207799
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP32822191A Expired - Fee Related JP3106440B2 (en) | 1991-11-16 | 1991-11-16 | Manufacturing method of non-woven fabric for flooring |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3106440B2 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1998038370A1 (en) * | 1997-02-28 | 1998-09-03 | Lohmann Gmbh & Co. Kg | Soundproofing material and the use thereof |
| FR2916459A1 (en) * | 2007-05-22 | 2008-11-28 | Duflot Ind Sa | Sound-proofing material for floor covering of building, has lower layer with thermally-bonded hollow sheet-lap, and upper layer integrated with lower layer by bonding and formed with flexible plate made of elastomer |
| JP2015218543A (en) * | 2014-05-21 | 2015-12-07 | パナソニックＩｐマネジメント株式会社 | Direct flooring material |
| CN108286130A (en) * | 2018-04-14 | 2018-07-17 | 天津工业大学 | A kind of imitative 3S Through-Air Thermal Bonded Nonwovens and preparation method thereof |
| CN112301545A (en) * | 2020-10-22 | 2021-02-02 | 安徽元琛环保科技股份有限公司 | Preparation method of hot-air cotton and prepared hot-air cotton |
-
1991
- 1991-11-16 JP JP32822191A patent/JP3106440B2/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1998038370A1 (en) * | 1997-02-28 | 1998-09-03 | Lohmann Gmbh & Co. Kg | Soundproofing material and the use thereof |
| FR2916459A1 (en) * | 2007-05-22 | 2008-11-28 | Duflot Ind Sa | Sound-proofing material for floor covering of building, has lower layer with thermally-bonded hollow sheet-lap, and upper layer integrated with lower layer by bonding and formed with flexible plate made of elastomer |
| JP2015218543A (en) * | 2014-05-21 | 2015-12-07 | パナソニックＩｐマネジメント株式会社 | Direct flooring material |
| CN108286130A (en) * | 2018-04-14 | 2018-07-17 | 天津工业大学 | A kind of imitative 3S Through-Air Thermal Bonded Nonwovens and preparation method thereof |
| CN112301545A (en) * | 2020-10-22 | 2021-02-02 | 安徽元琛环保科技股份有限公司 | Preparation method of hot-air cotton and prepared hot-air cotton |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3106440B2 (en) | 2000-11-06 |
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