JP2008005901A - Bed mat member made of flame-resistant nonwoven fabric layered product, and method of manufacturing the same - Google Patents

Bed mat member made of flame-resistant nonwoven fabric layered product, and method of manufacturing the same Download PDF

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JP2008005901A
JP2008005901A JP2006176780A JP2006176780A JP2008005901A JP 2008005901 A JP2008005901 A JP 2008005901A JP 2006176780 A JP2006176780 A JP 2006176780A JP 2006176780 A JP2006176780 A JP 2006176780A JP 2008005901 A JP2008005901 A JP 2008005901A
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nonwoven fabric
flame
fiber
bed mat
resistant
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Tamotsu Enohara
保 榎原
Tetsuo Yamada
哲郎 山田
Masanori Kinoshita
正規 木下
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Asahi Kasei Trading Co Ltd
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Asahi Kasei Trading Co Ltd
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a bed mat member for obtaining a flame resistant bed mat satisfying the California State Law TB603 in the USA (regulations on the fire resistance of bed mats) at relatively low cost. <P>SOLUTION: The bed mat member is made of a flame-resistant nonwoven fabric layered product with a long-fiber nonwoven fabric layered on one side of a short-fiber nonwoven fabric whose basis weight is 30-300 g/m<SP>2</SP>using flame-resistant fiber obtained by burning acrylic fiber in air at 200-300 °C whose limited oxygen index (LOI) is at least 40. The method of manufacturing the bed mat member is to manufacture the bed mat member by bonding the nonwoven fabric intermeshed with short fiber using flame-resistant fiber to the long-fiber nonwoven fabric layered on one side of the nonwoven fabric by using the needle-punching method to make the flame-resistant layered product. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

本発明は、米国カリフォルニア州法Technical Bulletin 603(TB603;ベッドマット難燃規制)に適合する為の、耐炎性を有する不織布積層体からなるベッドマット部材およびその製造方法に関する。   The present invention relates to a bed mat member made of a non-woven laminate having flame resistance, and a method for producing the same, in conformity with California State Technical Bulletin 603 (TB603; bed mat flame retardant regulation).

ベッドマット部材には、多種多用な素材が使用されている。その中でも主に使用される素材としては、ウレタン樹脂を用いた綿、熱可塑性樹脂を用いた繊維及び発泡体、天然繊維等が挙げられる。従来、ベットマット用途においては、難燃性はそれほど要求されていなかったが、通常のベッドマットにおいて、ウレタン樹脂製のマットに火がついた場合、消火することが著しく難しく、また、火の回りも速い為、高齢化の進行に伴い寝具を火元とする火災による高齢者の逃げ遅れが、社会問題になりつつある。また、現在、ホテルや旅館では、カーテンやカーペットなどのインテリア用途においては、防炎協会の基準に合格した炎製品を使うことが義務付けられているが、ベットマットについては耐炎製品を使用する義務はない。しかしながら、ホテル等でも高齢者の宿泊者が増えることから、同様の問題が起きる可能性がある。尚、現在義務はないものの防炎協会が防炎製品として推奨しているベットマットは存在しているが、全ての素材に難燃素材を使用しなければならない為、結果的にコスト高になり、ほとんど使用されていないのが現状である。   A wide variety of materials are used for the bed mat member. Among them, materials mainly used include cotton using urethane resin, fibers and foams using thermoplastic resin, natural fibers, and the like. Conventionally, flame retardancy has not been required so much for bed mat applications, but in the case of a regular bed mat, when a urethane resin mat is lit, it is extremely difficult to extinguish the fire, and However, with the progress of aging, the delay in escape of elderly people due to fires using bedding as a source of fire is becoming a social problem. Currently, hotels and inns are obligated to use flame products that have passed the standards of the Flame Protection Association for interior applications such as curtains and carpets. Absent. However, since the number of elderly guests increases in hotels and the like, the same problem may occur. Although there is a bed mat that is currently not obligated but recommended by the Flame Protection Association as a flame-proof product, flame retardant materials must be used for all materials, resulting in higher costs. Currently, it is rarely used.

更に2005年1月には、米国カリフォルニア州法Technical Bulletin 603(TB603;ベッドマット難燃規制)が施行され、全米に拡大する動きがみられる。米国カリフォルニア州法TB603は、現在、日本の防炎協会が推奨する防炎性ベッドに比較して性能は落ちるものの、難燃素材をベッド全体に使用する必要はなく、コストは安くなる。防炎性についても、寝具に火がついた場合でも、ベッド表面以外、即ちベッド本体には燃え拡がらず、もしくは拡がりにくく、高齢者であっても避難するのに十分な時間的な猶予が得られる。   Furthermore, in January 2005, the California State Law Technical Bulletin 603 (TB603; Bed Mat Flame Retardation Regulation) was enforced, and there is a movement to expand nationwide. The California state law TB 603 currently has lower performance compared to the flame proof bed recommended by the Japanese Flame Protection Association, but does not require the use of flame retardant material for the entire bed and is less expensive. As for flameproofing, even when the bedding is lit, it does not spread or hardly spread outside the bed surface, that is, the bed body, and even an elderly person has enough time to evacuate. can get.

尚、従来耐炎化繊維を用いた不織布に関する文献として、特許文献1等が挙げられる。しかしながら、該文献には不織布の用途が航空機、空調機等の高度な用途を対象としており、その為、該不織布をベッドマット用途として用いると過剰品質となり、更に大幅なコストアップ要因となってしまう。本発明は、上記の不織布に比較して、コストダウンが図られ、結果的に比較的安いコストで、耐炎性を有するベッドマット用の部材を提供することが出来る。   In addition, patent document 1 etc. are mentioned as literature regarding the nonwoven fabric which used the conventional flameproof fiber. However, in this document, the use of non-woven fabrics is intended for advanced uses such as aircraft and air conditioners. Therefore, if the non-woven fabrics are used as bed mats, the quality becomes excessive and causes a significant cost increase. . The present invention can provide a member for a bed mat having flame resistance at a relatively low cost as a result of cost reduction as compared with the above-mentioned nonwoven fabric.

特開平5−331753号公報JP-A-5-331753

本発明は、米国カリフォルニア州法TB603(ベッドマット難燃規制)に合格する耐炎性を有するベットマットを比較的安いコストで得る為のベッドマット部材を提供することを目的とする。   An object of the present invention is to provide a bed mat member for obtaining a bed mat having flame resistance that passes the California State Act TB603 (Bed Mat Flame Retardation Regulation) at a relatively low cost.

本発明は、カリフォルニア州法TB603(ベッドマット難燃規制)に適合する為に、以下の手段をとる。
本発明の第一は、アクリル系繊維を200〜300℃の空気中で焼成してなる限界酸素指数(LOI値)40以上の耐炎性繊維を用いた目付けが30〜300g/m2 の短繊維
不織布の片面に、長繊維不織布を積層した耐炎性不織布積層体からなることを特徴とするベッドマット部材である。
The present invention adopts the following means in order to comply with California law TB603 (bed mat flame retardant regulation).
The first of the present invention is a short fiber having a basis weight of 30 to 300 g / m 2 using a flame resistant fiber having a limiting oxygen index (LOI value) of 40 or more obtained by firing acrylic fiber in air at 200 to 300 ° C. A bed mat member comprising a flame-resistant nonwoven fabric laminate in which a long-fiber nonwoven fabric is laminated on one side of a nonwoven fabric.

本発明の第二は、耐炎性繊維を用いた短繊維不織布の片面に積層する長繊維不織布の目付けが10〜300g/m2 であることを特徴とする上記第一に記載のベッドマット部材である。
本発明の第三は、耐炎性不織布積層体の長繊維不織布側面に、更に短繊維不織布を積層することを特徴とする上記第一又は第二に記載のベッドマット部材である。
A second aspect of the present invention is the bed mat member according to the first aspect, wherein the basis weight of the long-fiber nonwoven fabric laminated on one surface of the short-fiber nonwoven fabric using flame resistant fibers is 10 to 300 g / m 2. is there.
A third aspect of the present invention is the bed mat member according to the first or second aspect, wherein a short fiber nonwoven fabric is further laminated on the side of the long fiber nonwoven fabric of the flame resistant nonwoven fabric laminate.

本発明の第四は、耐炎性不織布積層体の長繊維不織布側面に、更に積層する短繊維不織布の目付けが10〜300g/m2 であることを特徴とする上記第三のに記載のベッドマット部材である。
本発明の第五は、耐炎性繊維を用いた短繊維を交絡させた不織布及び該不織布の片面に積層する長繊維不織布を、ニードルパンチ法を用いて貼り合せて耐炎性不織布積層体とすることを特徴とする上記第一又は第2に記載のベッドマット部材の製造方法である。
本発明の第六は、耐炎性繊維を用いた短繊維を交絡させた不織布及び該不織布の片面に積層する長繊維不織布及びその上に積層する短繊維不織布を、ニードルパンチ法を用いて貼り合せて耐炎性不織布積層体とすることを特徴とする上記第三又は第四に記載のベッドマット部材の製造方法である。
A fourth aspect of the present invention is the bed mat according to the third aspect, wherein the basis weight of the short fiber nonwoven fabric further laminated on the side of the long fiber nonwoven fabric of the flame resistant nonwoven fabric laminate is 10 to 300 g / m 2. It is a member.
A fifth aspect of the present invention is to bond a nonwoven fabric entangled with short fibers using flame resistant fibers and a long fiber nonwoven fabric laminated on one side of the nonwoven fabric using a needle punch method to form a flame resistant nonwoven fabric laminate. The method for producing a bed mat member according to the first or second aspect, characterized in that:
The sixth aspect of the present invention is to bond a nonwoven fabric entangled with short fibers using flame resistant fibers, a long fiber nonwoven fabric laminated on one side of the nonwoven fabric, and a short fiber nonwoven fabric laminated thereon using a needle punch method. The method for producing a bed mat member according to the third or fourth aspect, wherein the laminate is a flame resistant nonwoven fabric laminate.

本発明により、カリフォルニア州法Technical Bulletin 603(TB603;ベッドマット難燃規制)に適合し、なおかつ耐炎化繊維の色(黒色)が見えないようにした耐炎性不織布積層体からなるベッドマット部材を提供することができた。   According to the present invention, there is provided a bed mat member made of a flame resistant non-woven laminate that conforms to the California State Technical Bulletin 603 (TB603; bed mat flame retardant regulation) and that prevents the color (black) of the flame resistant fiber from being seen. I was able to.

本発明において使用される難炎性及び耐炎性繊維は、理由は後述するが、一般的には、アクリル系繊維を200〜300℃の空気中で焼成した繊維を用いるものである。該繊維は、市場に数種類存在するが、LOI値40以上であることを必須とする以外、特に限定されない。
本発明の実施例では、SGLカーボン社製のアクリル系防炎繊維(商品名PANOX)を用いているが、その他に東邦テナクス社製のアクリル系防炎繊維(商品名PYROMEX)等を用いてもよい。更に、高度な耐炎性を必要とする場合は、LOI値45以上の防炎性を有する防炎繊維がより好ましい。
Although the reason for the flame-retardant and flame-resistant fibers used in the present invention will be described later, generally, fibers obtained by firing acrylic fibers in air at 200 to 300 ° C. are used. There are several types of fibers in the market, but there is no particular limitation except that it is essential that the LOI value is 40 or more.
In the examples of the present invention, acrylic flameproof fibers (trade name PANOX) manufactured by SGL Carbon are used, but acrylic flameproof fibers (trade name PYROMEX) manufactured by Toho Tenax are also used. Good. Furthermore, when a high flame resistance is required, a flameproof fiber having a flameproof property with a LOI value of 45 or more is more preferable.

また、繊維径についても、通常の不織布を製造できる範囲であれば、特に制限されない。本発明では、当該耐炎性繊維を短繊維として不織布に用いるが、その際の繊維長についても、通常の不織布を製造できる範囲であれば、特に制限されないが、交絡性の点から10〜80mmの範囲が好ましく、更に好ましくは15〜70mmの範囲である。
不織布の目付けについては、30〜300g/m2 の範囲であれば差し支えなく、性能及び材料コストのバランスを考えて設定すればよい。しかしながら、30g/m2 未満では、ベッドマット部材用途での所定の防炎性が不足し、また、300g/m2 を超えると、ベッドマット用途での所定の防炎性が頭打ちになり、無駄なコストアップの要因となる為、好ましくない。更に、安定したコスト及び性能を得る為には、50〜200g/m2 がより好ましい範囲である。
Further, the fiber diameter is not particularly limited as long as it is within a range in which a normal nonwoven fabric can be produced. In the present invention, the flame-resistant fiber is used as a short fiber in a nonwoven fabric. The fiber length at that time is not particularly limited as long as a normal nonwoven fabric can be produced, but is 10 to 80 mm from the point of entanglement. A range is preferable, More preferably, it is the range of 15-70 mm.
About the fabric weight of a nonwoven fabric, if it is the range of 30-300 g / m < 2 >, it does not interfere and should just set considering the balance of performance and material cost. However, if it is less than 30 g / m 2 , the predetermined flame resistance in the bed mat member application is insufficient, and if it exceeds 300 g / m 2 , the predetermined flame resistance in the bed mat application reaches its peak and is wasted. This is not preferable because it causes a significant increase in cost. Furthermore, in order to obtain stable cost and performance, 50 to 200 g / m 2 is a more preferable range.

上記耐炎性繊維不織布の片面に積層する長繊維不織布は、ベッドマット製造時に該不織布の変形及び破断を防止するための補強材として用いられるもので、一般にスパンボンドといわれている長繊維不織布を用いればよい。スパンボンドとはスパンボンド法で得られた長繊維不織布のことである。素材は特に限定されず、ポリエステル繊維、ナイロン繊維
、アクリル繊維、ポリプロピレン繊維などの合成繊維が好ましいが、如何なる繊維を用いても差し支えない。目付けについては、10〜300g/m2 の範囲であれば好ましく、10g/m2 未満では、補強材としての性能が得られず、また、300g/m2 を超えると上記耐炎性繊維不織布の防炎性を阻害し、ベッドマット部材用途での所定の防炎性が不足する。更に、より安定した性能を得るためには、50〜200g/m2 の範囲が好ましい。
The long-fiber non-woven fabric laminated on one side of the flame-resistant non-woven fabric is used as a reinforcing material for preventing deformation and breakage of the non-woven fabric during the production of the bed mat, and a long-fiber non-woven fabric generally referred to as spunbond is used. That's fine. Spunbond is a long-fiber nonwoven fabric obtained by the spunbond method. The material is not particularly limited, and synthetic fibers such as polyester fiber, nylon fiber, acrylic fiber, and polypropylene fiber are preferable, but any fiber may be used. The basis weight preferably be in the range of 10 to 300 g / m 2, is less than 10 g / m 2, the performance can not be obtained as a reinforcing material, also, more than 300 g / m 2 when proof of the flame resistant fiber nonwoven fabric The flame retardance is hindered, and the predetermined flameproofness for use as a bed mat member is insufficient. Furthermore, in order to obtain more stable performance, the range of 50 to 200 g / m 2 is preferable.

上記耐炎性繊維不織布の片面に積層した長繊維不織布側に、更に短繊維不織布を積層するのが好ましい。該短繊維不織布は、耐炎性繊維不織布の色が一般に黒色の為、それを目立たなくする為に用いるものである。色については、特に限定はしないが、表面素材の色に近い明るさ及び色相であることが好ましい。素材、形態については、特に制限はなく、何れの不織布を用いても差し支えない。繊維長については、特に制限されないが、交絡性の点から10〜80mmの範囲が好ましく、更に好ましくは15〜70mmの範囲である。目付けについても、10〜300g/m2 の範囲であれば、差し支えなく、10g/m2 未満では、十分に上記耐炎性繊維不織布特有の黒色を目立たなくすることが出来ず、また、300g/m2 を超えると上記耐炎性繊維不織布の防炎性を阻害し、ベッドマット部材用途での所定の防炎性が不足する。更に、より安定した性能を得るためには、50〜200g/m2 の範囲が好ましい。 It is preferable to further laminate a short fiber nonwoven fabric on the long fiber nonwoven fabric side laminated on one side of the flame resistant fiber nonwoven fabric. The short fiber nonwoven fabric is used to make the flame resistant fiber nonwoven fabric inconspicuous because the color of the flame resistant fiber nonwoven fabric is generally black. Although it does not specifically limit about a color, It is preferable that it is the brightness and hue close | similar to the color of a surface material. There is no restriction | limiting in particular about a raw material and a form, Any nonwoven fabric may be used. Although it does not restrict | limit especially about fiber length, The range of 10-80 mm is preferable from a confounding point, More preferably, it is the range of 15-70 mm. For even basis weight be in the range of 10 to 300 g / m 2, not permissible, it is less than 10 g / m 2, it can not be not sufficiently inconspicuous the flame resistant fiber nonwoven specific black, also, 300 g / m If it exceeds 2 , the flame resistance of the flame resistant fiber nonwoven fabric is hindered, and the predetermined flame resistance in bed mat member applications is insufficient. Furthermore, in order to obtain more stable performance, the range of 50 to 200 g / m 2 is preferable.

上記により得られた、耐炎性不織布積層体からなるベッドマット部材は、ベッドマットの表面のすぐ内側に少なくとも1層配置することが必須である。また、設置方向は、防炎繊維不織布側がベッドマットの内側に、長繊維不織布側面及び短繊維不織布側面が、ベッドマット表層面になる様に設置することが必要である。これは、前述のとおり、ベッド表面に耐炎性繊維が有する色、即ち、黒色を目立たなくする為及び、該不織布そのものの強度を保持させる為である。これにより、ベッドマットの表面より着火した炎を該ベッドマット部材用不織布にてせき止めることにより、ベッド全体への延焼を防止することができる。また、ベッドに該不織布を組み込む際、該不織布の変形及び破断が防止でき、作業性が非常に向上する。更に、該ベッドマット部材用不織布層およびクッション層の組合せを数層にわたって積層することは、ベッドマットの内層への延焼を防止する効果がより向上することから好ましい。   It is essential that at least one layer of the bed mat member made of the flame-resistant nonwoven fabric obtained as described above is disposed immediately inside the surface of the bed mat. Further, the installation direction needs to be installed so that the flameproof nonwoven fabric side is on the inside of the bed mat and the long fiber nonwoven fabric side surface and the short fiber nonwoven fabric side surface are the bed mat surface layer. This is because, as described above, the color of the flame resistant fiber on the bed surface, that is, the black color is inconspicuous, and the strength of the nonwoven fabric itself is maintained. Thereby, the flame ignited from the surface of the bed mat is blocked by the nonwoven fabric for the bed mat member, so that the spread of the fire to the entire bed can be prevented. Moreover, when incorporating the nonwoven fabric into the bed, deformation and breakage of the nonwoven fabric can be prevented, and workability is greatly improved. Furthermore, laminating the combination of the nonwoven fabric layer for bed mat members and the cushion layer over several layers is preferable because the effect of preventing fire spread to the inner layer of the bed mat is further improved.

本発明の要点は、可燃物であるベッドマット表面素材と可燃物であるベッドマットの内部素材の間に耐炎性の不織布を設置することにより、ベッドの表面に近い内部に耐火壁を形成する点にある。更に、一般的にベッドマット表面のほうがベッドマット内部の素材より質量が小さいため、ベッドマットの表面が燃えても、該耐炎性不織布の効果により、燃焼がせき止められ、質量の大半を占めるベッドマットの内部素材に燃え広がることを防ぐことができ、結果的に大きな火災になること防止することができる。   The main point of the present invention is that a fire-resistant wall is formed in the interior close to the bed surface by installing a flame-resistant nonwoven fabric between the bed mat surface material, which is a combustible material, and the internal material of the bed mat, which is a combustible material. It is in. Furthermore, since the surface of the bed mat generally has a smaller mass than the material inside the bed mat, even if the surface of the bed mat burns, the bed mat occupies most of the mass due to the effect of the flame resistant nonwoven fabric. It is possible to prevent the material from burning and spreading to the inside material, resulting in a large fire.

更に、アクリル系繊維を200〜300℃の空気中で焼成した難燃及び/又は耐炎化繊維を用いることが望ましい理由は、該繊維が高温の炎に晒されたときに全く燃焼せず徐々に炭化していく為である。更に繊維そのものが溶融せず、溶融した繊維がベッドマットに浸透することがなく、溶融した繊維が燃焼する、いわゆるろうそく効果が発生しないことにより、より燃焼領域が広がり難くなる為である。また、LOI値が40以上であると、不燃性繊維といっても差し支えない領域であり、通常の火災でも燃焼することがなく、炭化するのみの挙動となり、繊維溶融物から発生する炎により燃え広がる可能性もなくなる。そのため、本発明では該繊維を耐炎性繊維と定義した。   Furthermore, it is desirable to use flame-retardant and / or flame-resistant fibers obtained by firing acrylic fibers in the air at 200 to 300 ° C. The reason why the fibers are not burned at all when exposed to a high-temperature flame is gradually. This is for carbonization. Furthermore, the fiber itself is not melted, the melted fiber does not penetrate into the bed mat, and the melted fiber burns, so that the so-called candle effect does not occur, so that the combustion region becomes more difficult to expand. In addition, if the LOI value is 40 or more, it is an area that can be called non-combustible fiber, it will not burn even in a normal fire, it will only be charred, and it will burn by the flame generated from the fiber melt. There is no possibility of spreading. Therefore, in the present invention, the fiber is defined as a flame resistant fiber.

以下、本発明について、実施例などをあげて更に具体的に説明するが本発明はこれら実施例などにより何ら限定されるものではない。尚、評価法は以下の方法に従った。
燃焼性:以下のカリフォルニア州法TB603(ベッドマット難燃規制)試験法に従って測定した。
ベッドマットを、ガスバーナーを用いて横方向から50秒、上方向から70秒焼き、バーナーを止め、ベッドマットの燃焼状態で判定する。合格基準は、ピーク熱発生率が200kW未満で、なおかつ、テスト開始の最初10分での発散総熱量が25MJ未満であることを満たすことである。尚、詳細については、http://www.bhfti.ca.gov/tb603#jan2004#final.pdfに従った。
EXAMPLES Hereinafter, although an Example etc. are given and this invention is demonstrated more concretely hereafter, this invention is not limited at all by these Examples. In addition, the evaluation method followed the following method.
Flammability: Measured according to the following California State Act TB603 (Bed Mat Flame Retardancy Regulation) test method.
The bed mat is baked with a gas burner for 50 seconds from the horizontal direction and 70 seconds from the upper direction. The acceptance criteria is to satisfy that the peak heat generation rate is less than 200 kW, and that the total heat dissipation in the first 10 minutes of the start of the test is less than 25 MJ. For details, follow http://www.bhfti.ca.gov/tb603#jan2004#final.pdf .

[実施例1]
SGLカーボン社製、アクリル系防炎繊維(商品名PANOX)2.2dTex、繊維長約5cmの短繊維を使用し、単糸3.3dTex、目付け20g/m2 のポリエステル(ポリエチレンテレフタレート;PET)製スパンボンド上に該防炎繊維を目付け80g/m2 になるようにウェブ状に積層したのち、ニードルパンチ処理を行うことにより、総目付けが100g/m2 の所定の耐炎性不織布積層体を得た。得られた耐炎性不織布積層体は、該不織布積層体をベッドマット部材として用いたベッドマットの燃焼性の試験において、表面材以外には、延焼は見られず、約2分で自然鎮火し、合格基準のピーク熱発生率が200kW未満で、なおかつ、テスト開始の最初10分での発散総熱量が25MJ未満を満たしていた。
[Example 1]
Made by SGL Carbon, acrylic flameproof fiber (trade name PANOX) 2.2dTex, short fiber with a fiber length of about 5cm, single yarn 3.3dTex, fabric weight 20g / m 2 polyester (polyethylene terephthalate; PET) The flameproof fiber is laminated on the spunbond in a web shape so as to have a basis weight of 80 g / m 2, and then needle punching is performed to obtain a predetermined flame resistant nonwoven fabric laminate having a total basis weight of 100 g / m 2. It was. In the flame resistance test of the bed mat using the nonwoven fabric laminate as a bed mat member, the obtained flame resistant nonwoven fabric laminate was not subjected to fire spread except for the surface material, and spontaneously extinguished in about 2 minutes. The acceptance-based peak heat generation rate was less than 200 kW, and the total heat released during the first 10 minutes after the start of the test was less than 25 MJ.

[実施例2]
SGLカーボン社製、アクリル系防炎繊維(商品名PANOX)2.2dTex、繊維長約5cmの短繊維を使用し、単糸約3.3dTex、目付け20g/m2 のポリエステル製スパンボンド上に該防炎短繊維を目付け80g/m2 になるようにウェブ状に積層し、ニードルパンチ処理を行うことにより、総目付けが100g/m2 の所定の耐炎性不織布を得た。更に、該耐炎性不織布のスパンボンド側に白色(未染色)のポリエステル短繊維を目付け50g/m2 になるように積層し、ニードルパンチ処理を行うことにより、総目付けが150g/m2 の所定の耐炎性不織布積層体を得た。得られた耐炎性不織布積層体は、該不織布積層体をベッドマット部材として用いたベッドマットの燃焼性の試験において、表面材以外には、延焼は見られず、約2分で自然鎮火し、合格基準のピーク熱発生率が200kW未満で、なおかつ、テスト開始の最初10分での発散総熱量が25MJ未満を満たしていた。また、ベットマットの表面材として白色の布帛を使用したが、耐炎化繊維の黒色は、認識されなかった。
[Example 2]
Made of SGL Carbon, acrylic flameproof fiber (trade name PANOX) 2.2 dTex, using a short fiber with a fiber length of about 5 cm, on a spunbond made of polyester with a single yarn of about 3.3 dTex and a basis weight of 20 g / m 2 The flameproof short fibers were laminated in a web shape so as to have a basis weight of 80 g / m 2 , and needle punching was performed to obtain a predetermined flame resistant nonwoven fabric having a total basis weight of 100 g / m 2 . Further, white (undyed) polyester short fibers are laminated on the spunbond side of the flame resistant nonwoven fabric so as to have a basis weight of 50 g / m 2 , and needle punching is performed, thereby giving a total basis weight of 150 g / m 2 . A flame resistant nonwoven fabric laminate was obtained. In the flame resistance test of the bed mat using the nonwoven fabric laminate as a bed mat member, the obtained flame resistant nonwoven fabric laminate was not subjected to fire spread except for the surface material, and spontaneously extinguished in about 2 minutes. The acceptance-based peak heat generation rate was less than 200 kW, and the total heat released during the first 10 minutes after the start of the test was less than 25 MJ. Further, although a white fabric was used as the surface material of the bed mat, the black color of the flameproof fiber was not recognized.

[実施例3]
SGLカーボン社製、アクリル系防炎繊維(商品名PANOX)2.2dTex、繊維長約5cmの短繊維を使用し、単糸約3.3dTex、目付け50g/m2 のポリエステル製スパンボンド上に該防炎繊維を目付け150g/m2 になるようにウェブ状に積層し、ニードルパンチ処理を行うことにより、総目付けが200g/m2 の所定の耐炎性不織布を得た。更に、該耐炎性不織布のスパンボンド側に白色(未染色)のポリエステル短繊維を目付け80g/m2 になるように積層し、ニードルパンチ処理を行うことにより、総目付けが280g/m2 の所定の耐炎性不織布積層体を得た。得られた耐炎性不織布積層体は、該不織布積層体をベッドマット部材として用いたベッドマットの燃焼性の試験において、表面材以外には、延焼は見られず、約3分で自然鎮火し、合格基準のピーク熱発生率が200kW未満で、なおかつ、テスト開始の最初10分での発散総熱量が25MJ未満を満たしていた。また、ベットマットの表面材として白色の布帛を使用してみたが、耐炎化繊維の黒色は、認識できなかった。
[Example 3]
Made of SGL Carbon, acrylic flameproof fiber (trade name PANOX) 2.2 dTex, using a short fiber with a fiber length of about 5 cm, on a polyester spunbond having a single yarn of about 3.3 dTex and a basis weight of 50 g / m 2 A flameproof fiber was laminated in a web shape so as to have a basis weight of 150 g / m 2 , and needle punching was performed to obtain a predetermined flame resistant nonwoven fabric having a total basis weight of 200 g / m 2 . Further, white (undyed) polyester short fibers are laminated on the spunbond side of the flame resistant nonwoven fabric so as to have a basis weight of 80 g / m 2, and subjected to needle punching, thereby giving a total basis weight of 280 g / m 2 . A flame resistant nonwoven fabric laminate was obtained. In the flame resistance test of the bed mat using the nonwoven fabric laminate as a bed mat member, the obtained flame-resistant nonwoven fabric laminate does not show fire spread except for the surface material, and spontaneously extinguishes in about 3 minutes. The acceptance-based peak heat generation rate was less than 200 kW, and the total heat released during the first 10 minutes after the start of the test was less than 25 MJ. Further, white cloth was used as the surface material of the bed mat, but the black color of the flame resistant fiber was not recognized.

[実施例4]
SGLカーボン社製、アクリル系防炎繊維(商品名PANOX)2.2dTexの繊維長約5cmの短繊維を使用し、単糸約3.3dTex、目付け150g/m2 のポリエス
テル製スパンボンド上に該防炎繊維を目付け150g/m2 になるようにウェブ状に積層し、ニードルパンチ処理を行うことにより、総目付けが300g/m2 の所定の耐炎性不織布積層体を得た。得られた耐炎性不織布積層体は、該不織布積層体をベッドマット部材として用いたベッドマットの燃焼性の試験において、表面材以外には、延焼は見られず、約3分で自然鎮火し、合格基準のピーク熱発生率が200kW未満で、なおかつ、テスト開始の最初10分での発散総熱量が25MJ未満を満たしていた。
[Example 4]
A short fiber of about 5 cm in length of acrylic flameproof fiber (trade name PANOX) manufactured by SGL Carbon Co., Ltd. is used on a spunbond made of polyester having a single yarn of about 3.3 dTex and a basis weight of 150 g / m 2. A flameproof fiber was laminated in a web shape so as to have a basis weight of 150 g / m 2 , and needle punching was performed to obtain a predetermined flame resistant nonwoven fabric laminate having a total basis weight of 300 g / m 2 . In the flame resistance test of the bed mat using the nonwoven fabric laminate as a bed mat member, the obtained flame-resistant nonwoven fabric laminate does not show fire spread except for the surface material, and spontaneously extinguishes in about 3 minutes. The acceptance-based peak heat generation rate was less than 200 kW, and the total heat released during the first 10 minutes after the start of the test was less than 25 MJ.

[比較例1]
通常のポリエステル短繊維を使用し、単糸約3.3dTex、目付け150g/m2 のポリエステル製スパンボンド上に該ポリエステル短繊維を目付け150g/m2 になるようにウェブ状に積層し、ニードルパンチ処理を行うことにより、総目付けが300g/m2 の所定の不織布を得た。得られた不織布をベッドマット部材として用いたベッドマットの燃焼性の試験において、2分程度で表面材から、内部素材への延焼が見られ、最終的には、ベッドマット全体が燃焼した。更に、ピーク熱発生率が200kW以上で、なおかつ、テスト開始の最初10分での発散総熱量が25MJ以上である合格基準を満たさないものであった。
[Comparative Example 1]
Using normal polyester staple fibers, the polyester staple fibers are laminated in a web shape so that the basis weight is 150 g / m 2 on a polyester spunbond having a single yarn of about 3.3 dTex and a basis weight of 150 g / m 2. By performing the treatment, a predetermined nonwoven fabric having a total basis weight of 300 g / m 2 was obtained. In the test of the flammability of the bed mat using the obtained nonwoven fabric as a bed mat member, the fire spread from the surface material to the internal material was observed in about 2 minutes, and finally the entire bed mat burned. Furthermore, the peak heat generation rate was 200 kW or more, and the passing standard heat amount in the first 10 minutes after the start of the test was 25 MJ or more was not satisfied.

[比較例2]
単糸約3.3dTex、目付け20g/m2 のポリエステル製スパンボンド上にSGLカーボン社製、アクリル系防炎繊維(商品名PANOX)2.2dTexの繊維長約5cmの短繊維を目付け15g/m2 になるようにウェブ状に積層し、ニードルパンチ処理を行うことにより、総目付けが35g/m2 の所定の不織布積層体を得た。更に、該耐炎性不織布積層体のスパンボンド側に白色(未染色)のポリエステル短繊維を目付け30g/m2 になるように積層し、ニードルパンチ処理を行うことにより、総目付けが65g/m2 の所定の不織布を得た。得られた耐炎性不織布積層体は、該不織布積層体をベッドマット部材として用いたベッドマットの燃焼性の試験において、比較例1より若干燃焼時間は遅くなったものの、約5分で表面材から内部素材への延焼が見られ、最終的には、ベッドマット全体が燃焼した。更に、ピーク熱発生率が200kW以上で、なおかつ、テスト開始の最初10分での発散総熱量が25MJ以上で合格基準を満たさないものであった。
[Comparative Example 2]
Single fiber about 3.3dTex, 20g / m 2 polyester spunbond, SGL Carbon, acrylic flameproof fiber (trade name: PANOX) 2.2dTex short fiber with about 5cm fiber length is about 15g / m A predetermined nonwoven fabric laminate having a total basis weight of 35 g / m 2 was obtained by laminating in a web shape so as to be 2 and performing needle punching. Further, white (undyed) polyester short fibers are laminated on the spunbond side of the flame resistant nonwoven fabric laminate so as to have a basis weight of 30 g / m 2 , and needle punching is performed to obtain a total basis weight of 65 g / m 2. The predetermined nonwoven fabric was obtained. The obtained flame-resistant nonwoven fabric laminate had a combustion time slightly slower than that of Comparative Example 1 in the bed mat combustibility test using the nonwoven fabric laminate as a bed mat member. The fire spread to the inner material, and eventually the entire bed mat burned. Furthermore, the peak heat generation rate was 200 kW or higher, and the total heat generated during the first 10 minutes of the test was 25 MJ or higher, which did not satisfy the acceptance criteria.

本発明の耐炎性不織布積層体からなるベッドマット部材はベッドマットの表面材の直下に用いることにより、防炎性のベットマットが得られる。   The bed mat member made of the flame resistant nonwoven fabric laminate of the present invention is used immediately below the surface material of the bed mat to obtain a flameproof bed mat.

Claims (6)

アクリル系繊維を200〜300℃の空気中で焼成してなる限界酸素指数(LOI値)40以上の耐炎性繊維を用いた目付けが30〜300g/m2 の短繊維不織布の片面に、長繊維不織布を積層した耐炎性不織布積層体からなることを特徴とするベッドマット部材。 On one side of a short fiber nonwoven fabric having a basis weight of 30 to 300 g / m 2 using a flame resistant fiber having a limiting oxygen index (LOI value) of 40 or more obtained by firing acrylic fibers in air at 200 to 300 ° C., long fibers A bed mat member comprising a flame-resistant nonwoven fabric laminate in which nonwoven fabrics are laminated. 耐炎性繊維を用いた短繊維不織布の片面に積層する長繊維不織布の目付けが10〜300g/m2 であることを特徴とする請求項1に記載のベッドマット部材。 Mattress member according to claim 1 in which the basis weight of the long-fiber nonwoven fabric laminated on one side of the short fiber nonwoven fabric using the flame resistant fiber is characterized in that it is a 10 to 300 g / m 2. 耐炎性不織布積層体の長繊維不織布側面に、更に短繊維不織布を積層することを特徴とする請求項1又は2に記載のベッドマット部材。   The bed mat member according to claim 1 or 2, wherein a short fiber nonwoven fabric is further laminated on the side of the long fiber nonwoven fabric of the flame resistant nonwoven fabric laminate. 耐炎性不織布積層体の長繊維不織布側面に、更に積層する短繊維不織布の目付けが10〜300g/m2 であることを特徴とする請求項3に記載のベッドマット部材。 The bed mat member according to claim 3, wherein the basis weight of the short fiber nonwoven fabric further laminated on the side surface of the long fiber nonwoven fabric of the flame resistant nonwoven fabric laminate is 10 to 300 g / m 2 . 耐炎性繊維を用いた短繊維を交絡させた不織布及び該不織布の片面に積層する長繊維不織布を、ニードルパンチ法を用いて貼り合せて耐炎性不織布積層体とすることを特徴とする請求項1又は2に記載のベッドマット部材の製造方法。   2. A non-woven fabric in which short fibers using flame-resistant fibers are entangled and a long-fiber non-woven fabric laminated on one side of the non-woven fabric are bonded using a needle punch method to form a flame-resistant non-woven fabric laminate. Or the manufacturing method of the bed mat member of 2. 耐炎性繊維を用いた短繊維を交絡させた不織布及び該不織布の片面に積層する長繊維不織布及びその上に積層する短繊維不織布を、ニードルパンチ法を用いて貼り合せて耐炎性不織布積層体とすることを特徴とする請求項3又は4に記載のベッドマット部材の製造方法。
A non-woven fabric in which short fibers using flame-resistant fibers are entangled, a long-fiber non-woven fabric laminated on one side of the non-woven fabric, and a short-fiber non-woven fabric laminated on the non-woven fabric are bonded using a needle punch method, The method for manufacturing a bed mat member according to claim 3 or 4, wherein:
JP2006176780A 2006-06-27 2006-06-27 Bed mat member made of flame-resistant nonwoven fabric layered product, and method of manufacturing the same Pending JP2008005901A (en)

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JP7507237B2 (en) 2019-10-31 2024-06-27 スリーエム イノベイティブ プロパティズ カンパニー Thermal insulation material and method

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012173104A1 (en) * 2011-06-15 2012-12-20 東洋紡株式会社 Non-woven fabric for reinforcing foam-molded article and product using same
JP2013019087A (en) * 2011-06-15 2013-01-31 Toyobo Co Ltd Nonwoven fabric for reinforcing foam molded article and product using the same
JP2019030519A (en) * 2017-08-08 2019-02-28 南京優尼可国際貿易有限公司 Cool feeling sheet and its manufacturing method
JP7507237B2 (en) 2019-10-31 2024-06-27 スリーエム イノベイティブ プロパティズ カンパニー Thermal insulation material and method

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