JP4648116B2 - Fabric and heat-resistant protective clothing - Google Patents
Fabric and heat-resistant protective clothing Download PDFInfo
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- JP4648116B2 JP4648116B2 JP2005205491A JP2005205491A JP4648116B2 JP 4648116 B2 JP4648116 B2 JP 4648116B2 JP 2005205491 A JP2005205491 A JP 2005205491A JP 2005205491 A JP2005205491 A JP 2005205491A JP 4648116 B2 JP4648116 B2 JP 4648116B2
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Description
本発明は、芳香族ポリアミド繊維を主たる構成成分としてなる布帛において、２種類の異なった性質のパラ型芳香族ポリアミド繊維を共存させることにより、耐収縮性、耐フィブリル性の両方を兼ね備えた布帛、およびこれを用いた耐熱防護服に関する。
さらに詳細には、本発明は、消防士、飛行士、レースドライバー、電力会社、化学会社の作業者など火炎に曝される可能性のある作業に従事する人々が着用するのに適した耐炎性衣服などに用いる布帛、およびこれを用いた耐熱性防護服に関するものである。
The present invention provides a fabric having both shrink resistance and fibril resistance by coexisting two kinds of para-type aromatic polyamide fibers having different properties in a cloth mainly composed of aromatic polyamide fibers. And a heat-resistant protective clothing using the same.
More particularly, the present invention is flame resistant suitable for use by people engaged in work that may be exposed to fire, such as firefighters, aviators, race drivers, power companies, and chemical company workers. The present invention relates to a fabric used for clothes and the like, and a heat-resistant protective clothing using the same.
火炎に曝された場合に、燃焼し難く、かつ熱溶融性のない繊維として、難燃加工された、木綿、羊毛、難燃ビニロン、難燃レーヨンなどが知られており、耐炎性衣服素材として提供されている。しかし、これらの繊維は、耐炎性作業服として必要な耐炎強度を有していなかったり、２００℃以上の熱に長時間曝された場合の耐熱性が充分でないなどという欠点を有する。
一方、耐熱性、耐炎性に優れた繊維として、炭素化レーヨン、ポリベンズイミダゾール繊維、パラ型芳香族アミド繊維、ポリベンゾオキサゾール繊維などがあり、やはり耐炎性衣服素材として提供されている。しかし、これらの繊維は、耐熱耐炎性には優れているが染色性が不良で衣料としての審美性に欠け、風合,強度なども充分でないなどという欠点を有する。
Inflammation processed cotton, wool, flame retardant vinylon, flame retardant rayon, etc. are known as non-heat-meltable fibers when exposed to flames. Is provided. However, these fibers have drawbacks that they do not have the flame resistance required for flame resistant work clothes, and that the heat resistance when exposed to heat of 200 ° C. or higher for a long time is not sufficient.
On the other hand, carbonized rayon, polybenzimidazole fiber, para-type aromatic amide fiber, polybenzoxazole fiber, etc. are provided as fibers having excellent heat resistance and flame resistance, which are also provided as flame resistant clothing materials. However, these fibers have defects such as excellent heat resistance and flame resistance but poor dyeability, lack of aesthetics as clothing, and insufficient texture and strength.
そこで耐熱・耐炎性に優れ作業服としての強度も有し、かつ任意の色に着色可能なメタ型芳香族ポリアミド繊維であるポリ(メタフェニレンイソフタルアミド)繊維が、耐炎性衣服素材として広く用いられてきた。
しかし、ポリ(メタフェニレンイソフタルアミド)繊維を主成分とする耐炎性衣料でも、火炎にさらされた場合は熱収縮して穴あき破損を生じる。かかる問題を解決するために、メタ型芳香族ポリアミド繊維に特定範囲の耐炎強力を有する繊維を均一に混合すれば、得られた混合繊維は、火炎にさらされた場合に火炎から逃げ出すのに十分な時間、穴あき破損を起こすことがなくなるということは既に知られている(特許文献１：特開平１-２２１５３７号公報)。
一般的に、耐熱繊維には、パラ型芳香族アミド繊維、ポリベンゾオキサゾール繊維などの高強力繊維が用いられる。なかでも、パラ型芳香族ポリアミド繊維は、カッティングなどの取り扱い性のしやすさ、価格などから非常に多く使われている。パラ型芳香族ポリアミド繊維には、大きく分けて下記（１）や下記式（２）で表される繰り返し単位を主体繰り返し単位とするパラ型芳香族ポリアミドからなる繊維の２種に大別される。つまり、芳香族ポリアミド繊維骨格に対して、第三成分を共重合したタイプのものと、ポリアミド骨格のみから構成されるものである。
Therefore, poly (metaphenylene isophthalamide) fiber, which is a meta-type aromatic polyamide fiber that has excellent heat resistance and flame resistance and has strength as work clothes and can be colored in any color, is widely used as a flame resistant clothing material. I came.
However, even flame resistant garments based on poly (metaphenylene isophthalamide) fibers are subject to heat shrinkage and perforated damage when exposed to flame. In order to solve this problem, if the meta-aromatic polyamide fiber is uniformly mixed with a fiber having a specific range of flame resistance, the resulting mixed fiber is sufficient to escape from the flame when exposed to the flame. It is already known that perforation breakage does not occur for a long time (Patent Document 1: Japanese Patent Laid-Open No. 1-222137).
In general, high-strength fibers such as para-type aromatic amide fibers and polybenzoxazole fibers are used as heat-resistant fibers. Among them, para-type aromatic polyamide fibers are very often used because of their ease of handling such as cutting and price. Para-type aromatic polyamide fibers are roughly classified into two types of fibers made of para-type aromatic polyamides whose main repeating unit is a repeating unit represented by the following (1) or the following formula (2). . That is, the aromatic polyamide fiber skeleton is composed of a type obtained by copolymerizing the third component and the polyamide skeleton alone.
（式中、ｍおよびｎは正の整数を示す。）
(In the formula, m and n represent positive integers.)
（式中、ｎ’は正の整数を示す。） (In the formula, n 'represents a positive integer.)
これらパラ型芳香族ポリアミド繊維は、高強力であること、優れた耐炎性能を有すること(火炎暴露後に繊維形態を保持できること)は共通点である。しかしながら、式（１）で表される共重合タイプにおいては、共重合成分があるが故に、難燃性を若干低下させること、また、高温領域での収縮性がやや高いことが欠点として挙げられる。代わりに、磨耗時のフィブリル化が抑制できるという長所を有する。
逆に、式（２）で表されるタイプにおいては、難燃性、収縮性には問題がないものの、磨耗時のフィブリル化が大きくなる。
これまで、メタ型芳香族ポリアミド繊維とパラ型芳香族ポリアミド繊維を組合わせることにより、多くの耐炎素材が開発されてきたが、これまでのものは、いずれか一方の特性を持ったパラ型芳香族ポリアミド繊維のみにて設計されていたため、難燃性、耐収縮性、耐フィブリル性を満足させる素材を提供することは非常に難しかった。
On the contrary, in the type represented by the formula (2), although there is no problem in flame retardancy and shrinkage, fibrillation during wear increases.
So far, many flame-resistant materials have been developed by combining meta-type aromatic polyamide fibers and para-type aromatic polyamide fibers, but so far, para-type aromatics with one of the characteristics have been developed. It was very difficult to provide a material satisfying flame resistance, shrinkage resistance, and fibril resistance.
本発明は、上記の問題点を解決し、難燃性、耐収縮性、耐フィブリル性を満足させ、かつ軽量で優れた耐熱特性を示す布帛、およびこれを用いた耐熱性防護服を提供することにある。 The present invention solves the above problems, and provides a fabric that satisfies the flame retardancy, shrinkage resistance, and fibril resistance and that is lightweight and exhibits excellent heat resistance characteristics, and a heat-resistant protective clothing using the same. There is.
本発明は、メタ型芳香族ポリアミド繊維とパラ型芳香族アミド繊維を含有する布帛において、パラ型芳香族ポリアミド繊維が上記式（１）で表される繰り返し単位を主たる繰り返し単位として含むパラ型芳香族ポリアミドからなる繊維（以下「パラ型芳香族ポリアミド繊維（１）」ともいう）および下記式（２）で表される繰り返し単位を主たる繰り返し単位として含むパラ型芳香族ポリアミドからなる繊維（以下「パラ型芳香族ポリアミド繊維（２）」ともいう）の２種類の両方を含むことを特徴とする布帛に関する。
ここで、本発明の布帛中には、パラ型芳香族ポリアミド繊維が５〜８０重量％含有され、なおかつパラ型芳香族ポリアミド繊維（１）とパラ型芳香族ポリアミド繊維（２）との重量比が２０／８０〜８０／２０の範囲にあることが好ましい。
次に、本発明は、上記布帛を用いた耐熱性防護服に関する。
The present invention relates to a para-type fragrance in which a para-type aromatic polyamide fiber contains a repeating unit represented by the above formula (1) as a main repeating unit in a cloth containing a meta-type aromatic polyamide fiber and a para-type aromatic amide fiber. A fiber made of an aromatic polyamide (hereinafter also referred to as “para-type aromatic polyamide fiber (1)”) and a fiber made of a para-type aromatic polyamide containing a repeating unit represented by the following formula (2) as the main repeating unit (hereinafter “ It is related with the fabric characterized by including both of two types of para type | mold aromatic polyamide fiber (2) ".
Here, the fabric of the present invention contains 5 to 80% by weight of the para-type aromatic polyamide fiber, and the weight ratio of the para-type aromatic polyamide fiber (1) to the para-type aromatic polyamide fiber (2). Is preferably in the range of 20/80 to 80/20.
Next, this invention relates to the heat-resistant protective clothing using the said fabric.
本発明の布帛を用いることにより、火炎に曝された場合に充分な耐熱性、耐炎性、難燃性を有し、かつ収縮性、耐フィブリル性に優れた耐熱性防護服（耐炎衣服）を提供することができる。 By using the fabric of the present invention, a heat-resistant protective clothing (flame resistant clothing) having sufficient heat resistance, flame resistance and flame resistance when exposed to a flame, and excellent in shrinkage and fibril resistance. Can be provided.
本発明は、メタ型芳香族ポリアミド繊維とパラ型芳香族アミド繊維を含有する布帛において、パラ型芳香族アラミド繊維が上記式（１）、（２）で表される二種類の両方を含むことを特徴とする布帛、およびそれからなる耐熱性防護服である。 In the cloth containing the meta-type aromatic polyamide fiber and the para-type aromatic amide fiber, the present invention includes the para-type aromatic aramid fiber including both of the two types represented by the above formulas (1) and (2). And a heat-resistant protective clothing comprising the same.
本発明で使用するメタ型芳香族ポリアミド繊維とは、香族ポリアミドのうち、延鎖結合の５０モル％以上が非共軸で非平行の芳香族ポリアミド、例えば、ジカルボン酸として、テレフタル酸、イソフタル酸などの１種または２種以上と、ジアミンとしてメタフェニレンジアミン、４，４−ジアミノフェニルエーテル、４，４’−ジアミノジフェニルメタン、キシリレンジアミンなどの１種または２種以上を使用したホモポリマーまたは共重合ポリマーからなる繊維をあげることができ、その代表的な例としては、ポリメタフェニレンイソフタルアミド、ポリメタキシレンテレフタルアミド、あるいはイソフタル酸クロライド、テレフタル酸クロライド、メタフェニレンジアミンなどを共重合した共重合ポリマーからなる繊維などがある。
以上のメタ型芳香族ポリアミドの固有粘度は、０．５ｇ/１００ｍｌの濃硫酸溶液(30℃)で測定した値が０．８〜４．０、特に１．０〜３．０のものが好ましい。
The meta-type aromatic polyamide fiber used in the present invention is an aromatic polyamide in which 50 mol% or more of the chain bond is non-coaxial and non-parallel among aromatic polyamides, for example, dicarboxylic acid, terephthalic acid, isophthalic acid Homopolymer using 1 type or 2 types or more such as acid and 1 type or 2 types or more such as metaphenylenediamine, 4,4-diaminophenyl ether, 4,4′-diaminodiphenylmethane, xylylenediamine as diamine A typical example is a fiber made of a copolymerized polymer, and typical examples thereof include polymetaphenylene isophthalamide, polymetaxylene terephthalamide, or a copolymer obtained by copolymerizing isophthalic acid chloride, terephthalic acid chloride, metaphenylenediamine, and the like. There are fibers made of polymerized polymers.
The intrinsic viscosity of the above meta-type aromatic polyamide has a value measured with a concentrated sulfuric acid solution (30 ° C.) of 0.5 g / 100 ml of 0.8 to 4.0, particularly preferably 1.0 to 3.0. .
一方、本発明に用いられるパラ型芳香族ポリアミド繊維は、芳香族環の５０モル％以上がパラ配位の芳香族基であるポリマーからなる繊維であり、具体的には、上記繊維（１）としては、コポリパラフェニレン・３，４’−オキシジフェニレン・テレフタルアミドからなる繊維〔「テクノーラ」；帝人（株）製〕、上記繊維（２）としては、ポリパラフェニレンテレフタルアミドからなる繊維〔「トワロン」（帝人トワロン（株）製）、「ケブラー」（デュポン（株）製）〕などが例示される。 On the other hand, the para-type aromatic polyamide fiber used in the present invention is a fiber composed of a polymer in which 50 mol% or more of the aromatic ring is a para-coordinate aromatic group. Specifically, the fiber (1) As a fiber made of copolyparaphenylene 3,4'-oxydiphenylene terephthalamide ["Technora" manufactured by Teijin Ltd.], and as the fiber (2), a fiber made of polyparaphenylene terephthalamide [ “Twaron” (manufactured by Teijin Twaron Co., Ltd.), “Kevlar” (manufactured by DuPont Co., Ltd.)] and the like are exemplified.
以上のメタ型芳香族ポリアミドには、難燃剤、着色剤、耐光性向上剤、艶消剤、導電剤などの添加剤は発明の目的を損なわない範囲で含有されていてもよい。
また、式（１）や（２）で表されるパラ型芳香族ポリアミドも、同様に難燃剤、着色剤、耐炎性向上剤、艶消剤などの添加剤を発明の目的を損なわない程度に含有していてもよい。
The above-mentioned meta-type aromatic polyamide may contain additives such as a flame retardant, a colorant, a light resistance improver, a matting agent, and a conductive agent as long as the object of the invention is not impaired.
In addition, para-type aromatic polyamides represented by the formulas (1) and (2) are also added to such an extent that additives such as flame retardants, colorants, flame resistance improvers and matting agents are not impaired. You may contain.
以上のメタ型芳香族ポリアミド繊維、パラ型芳香族ポリアミド繊維（１），（２）の混合形態は、混紡、交織、交編、混繊のいずれでもよいが、好ましくは難燃性、耐収縮性、耐フィブリル性の向上効果を最大限に発揮させる観点から、混紡である。
なお、繊維を均一に混合するには、空気混合法、同時切断法などの通常の繊維混合技術を用いる。紡績工程で混合するときは、捲縮数４〜２０ケ／インチ程度の捲縮糸を用いるのが好ましい。
この場合、メタ型芳香族ポリアミド繊維、パラ型芳香族ポリアミド繊維の繊維長は、それぞれ３０〜１００ｍｍの範囲が好ましい。また、メタ型、パラ型ともに、単糸繊度は、０．５〜３．０ｄｔｅｘが好ましい。
The mixed form of the above-mentioned meta-type aromatic polyamide fiber and para-type aromatic polyamide fiber (1), (2) may be any of mixed spinning, union weaving, union knitting, and mixed fiber, but is preferably flame retardant and shrink resistant. From the viewpoint of maximizing the effect of improving the properties and fibril resistance, it is a blend.
In addition, in order to mix a fiber uniformly, normal fiber mixing techniques, such as an air mixing method and a simultaneous cutting method, are used. When mixing in the spinning process, it is preferable to use a crimped yarn having a number of crimps of about 4 to 20 / inch.
In this case, the fiber lengths of the meta-type aromatic polyamide fiber and the para-type aromatic polyamide fiber are preferably in the range of 30 to 100 mm. In addition, the single yarn fineness is preferably 0.5 to 3.0 dtex in both the meta type and the para type.
本発明の布帛は、編物や織物として形成されるが、消防服などの耐熱性防護服には、適当な強度を必要とするために織物が好ましく使用され、織物の場合にはその目付けが１５０〜３５０ｇ／ｍ2の範囲にあるものを使用することが実用的である。上記目付けが、１５０ｇ／ｍ2未満の場合には、充分な耐熱性能が得られない恐れがあり、一方、該目付けが、３５０ｇ／ｍ2を超える場合には、防護服にした場合の着用感が阻害されるので好ましくない。 The fabric of the present invention is formed as a knitted fabric or a woven fabric. However, a woven fabric is preferably used for a heat-resistant protective clothing such as a fire fighting suit because it needs an appropriate strength. It is practical to use one in the range of ˜350 g / m 2 . If the basis weight is less than 150 g / m 2 , sufficient heat resistance may not be obtained. On the other hand, if the basis weight exceeds 350 g / m 2 , the feeling of wear when wearing protective clothing. Is not preferred because it is inhibited.
本発明の布帛において、メタ型芳香族ポリアミド繊維の含有量は、好ましくは２０〜９５重量％、さらに好ましくは２０〜７０重量％。２０重量％未満であると、耐炎性、遮熱性の低いものとなり、一方９５重量％を超えると、収縮が大きく火炎暴露時の穴あきの原因となる。
また、本発明の布帛において、パラ型芳香族ポリアミド繊維の含有量は、好ましくは５〜８０重量%、さらに好ましくは３０〜８０重量％である。５重量％未満であると、収縮が大きく火炎暴露時の穴あきの原因となる。逆に、８０重量％を超えると、フィブリル化を引き起こし、外観の悪いものとなる。
In the fabric of the present invention, the content of the meta-type aromatic polyamide fiber is preferably 20 to 95% by weight, more preferably 20 to 70% by weight. If it is less than 20% by weight, the flame resistance and heat shielding properties are low. On the other hand, if it exceeds 95% by weight, the shrinkage is large and it causes a hole in the flame exposure.
In the fabric of the present invention, the content of the para-type aromatic polyamide fiber is preferably 5 to 80% by weight, and more preferably 30 to 80% by weight. If it is less than 5% by weight, the shrinkage is large, which causes a hole in the flame exposure. On the other hand, when it exceeds 80% by weight, fibrillation is caused and the appearance is poor.
二種類のパラ型芳香族ポリアミド繊維の構成比は、繊維（１）と繊維（２）の重量比が、好ましくは２０／８０〜８０／２０、さらに好ましくは３０／７０〜７０／３０の範囲である。パラ型芳香族ポリアミド繊維（１）の含有量が２０重量％未満になると、フィブリル化を加速し、一方、８０重量％を超えると、難燃性を阻害するとともに収縮が大きくなる。 The composition ratio of the two types of para-type aromatic polyamide fibers is such that the weight ratio of the fibers (1) and (2) is preferably in the range of 20/80 to 80/20, more preferably 30/70 to 70/30. It is. When the content of the para-type aromatic polyamide fiber (1) is less than 20% by weight, fibrillation is accelerated. On the other hand, when the content exceeds 80% by weight, flame retardancy is inhibited and shrinkage increases.
また、本発明の布帛には、必要に応じて、他の難燃繊維を混用しても差しさわりがない。他の難燃繊維とは、難燃レーヨン、難燃綿に代表されるセルロース系繊維または難燃剤を添加されたポリエステルなども好ましく用いられる。芳香族ポリアミド繊維とアラミド以外の繊維との混率は、前者が１００〜５０重量％、後者が０〜５０重量％が適当で他の難燃繊維が５０重量％を超えると、本来の目的である耐熱性、耐炎性が低下するため好ましくない。
なお、本発明の布帛において、難燃繊維として綿あるいはレーヨン、ポリエステルを用いる場合、混用する量によって限界酸素指数（ＬＯＩ）が２６未満となる場合があるが、その場合はたとえば綿用防炎剤として知られているテトラキス(ヒドロキシアルキル)ホスホニウム系化合物などの難燃剤を必要量用い、処理することによってＬＯＩが２６以上の布帛とすることができる。また、布帛の難燃性をさらに良好なものとし、ＬＯＩを３０以上の布帛をうるには、テトラキス(ヒドロキシアルキル)ホスホニウム系化合物などの難燃剤を増量して処理することによって可能である。
Moreover, even if it uses other flame retardant fiber for the fabric of this invention as needed, it does not touch. As other flame retardant fibers, flame retardant rayon, cellulosic fibers typified by flame retardant cotton, polyester to which a flame retardant is added, and the like are also preferably used. The mixing ratio of the aromatic polyamide fiber and the fiber other than aramid is the original purpose when the former is 100 to 50% by weight, the latter is 0 to 50% by weight, and the other flame retardant fiber exceeds 50% by weight. Since heat resistance and flame resistance are lowered, it is not preferable.
In the fabric of the present invention, when cotton, rayon, or polyester is used as the flame retardant fiber, the limiting oxygen index (LOI) may be less than 26 depending on the amount used. In such a case, for example, a flame retardant for cotton By using a necessary amount of a flame retardant such as a tetrakis (hydroxyalkyl) phosphonium compound known as No. 4, a fabric having a LOI of 26 or more can be obtained. Further, in order to further improve the flame retardancy of a fabric and obtain a fabric having an LOI of 30 or more, it is possible to increase the amount of a flame retardant such as a tetrakis (hydroxyalkyl) phosphonium compound.
本発明の布帛は、メタ型芳香族ポリアミド繊維ならびに２種類のパラ型芳香族ポリアミド繊維を用い、さらに必要に応じて、セルロース系繊維が混用されてなる布帛であり、従来の収縮性と耐フイブリル性を改善し、本来の目的である耐熱性、耐炎性、難燃性を阻害しない布帛とすることができ、限界酸素指数が２６以上である。本発明の布帛は、形態保持性と耐熱、耐炎、難燃性を充分に兼ね備えた優れた耐熱性防護服（耐炎性衣服）を提供することができる。 The fabric of the present invention is a fabric using a meta-type aromatic polyamide fiber and two types of para-type aromatic polyamide fibers, and further, if necessary, mixed with cellulosic fibers, and has conventional shrinkage and fibril resistance. The fabric can be made into a fabric that does not impair heat resistance, flame resistance, and flame retardancy, which are the original purposes, and has a limiting oxygen index of 26 or more. The fabric of the present invention can provide an excellent heat-resistant protective clothing (flame-resistant garment) having sufficient shape retention, heat resistance, flame resistance, and flame retardancy.
本発明の布帛は、そのままで耐熱性防護服として縫製することができるが、該布帛の耐熱性の性能をアップするために、表地面(耐熱性防護服の表側面)に対して予め撥水性加工を施して耐水性の高い布帛とすることができる。上記撥水加工は、フッ素系の撥水性樹脂を用いて公知の方法に従って、コーティング法、スプレー法、あるいは、浸漬法などの加工方法により行うことができる。このように撥水性加工を施した耐熱性布帛を用いて作成した防護服では、消火作業の際に空洞部に水が浸入してくるのを防止することができるので、防護服の着用性能を向上させることができる。 The fabric of the present invention can be sewn as a heat-resistant protective clothing as it is, but in order to improve the heat-resistant performance of the fabric, the water-repellent property is preliminarily applied to the outer surface (the front side surface of the heat-resistant protective clothing). It can be processed to make a fabric with high water resistance. The water-repellent processing can be performed by a processing method such as a coating method, a spray method, or an immersion method in accordance with a known method using a fluorine-based water-repellent resin. In the protective clothing created using the heat-resistant fabric that has been subjected to water repellent treatment in this way, it is possible to prevent water from entering the cavity during fire extinguishing work. Can be improved.
また、消防服などの高い性能を要求される分野では、特に中間層として透湿防水性のある薄膜フィルムを耐熱性繊維からなる布帛にラミネート加工したものを用いることが効果的である。この中間層を挿入することにより、透湿防水性が向上し防水性能は勿論のこと、着用者の汗の蒸散を促進してヒートストレスを減少させることが出来る。ここで用いる薄膜フィルムとしては、透湿防水性を有するものであれば使用可能であるが、耐薬品性を兼ね備えたポリテトラフルオロエチレン製のものを用いることが特に好ましい。 Further, in fields requiring high performance such as fire fighting clothes, it is particularly effective to use a laminate of a moisture permeable and waterproof thin film on a fabric made of heat resistant fibers as an intermediate layer. By inserting this intermediate layer, moisture permeability and waterproofness are improved, and not only the waterproof performance but also the sweating of the wearer can be promoted to reduce heat stress. As the thin film used here, any film having moisture permeability and waterproofness can be used, but it is particularly preferable to use a film made of polytetrafluoroethylene having chemical resistance.
本発明を以下の実施例により説明する。
難燃性の評価は、ＪＩＳ Ｌ１０９１Ｅ法およびＪＩＳ Ｌ１０９１Ａ−４法にて行なった。
フィブリル性については、ＪＩＳ Ｌ ｌ０９６ ６．１７．５の摩耗強さＥ法（マーチンデール法）に準拠した方法により、５,０００回摩擦させた後の織物の外観を目視判定した。外観に異常が見られない場合を○、フィブリルの発生が見られる場合を×とした。
収縮性は、所定の温度に加熱された電気炉（４５０℃で３０分放置）中での布の寸法変化をもって表した。
The invention is illustrated by the following examples.
The flame retardancy was evaluated by the JIS L1091E method and the JIS L1091A-4 method.
About the fibril property, the appearance of the fabric after rubbing 5,000 times was visually determined by a method based on the abrasion strength E method (Martindale method) of JIS L 1096 6.17.5. The case where no abnormality was observed in the appearance was marked with ◯, and the case where fibrils were observed was marked with x.
Shrinkage was expressed as a change in fabric dimensions in an electric furnace heated to a predetermined temperature (left at 450 ° C. for 30 minutes).
実施例１〜２
固有粘度１．８のポリメタフェニレンイソフタルアミド１００重量部に、難燃剤としてトリス(２，４−ジクロロフェニル)フォスフェートを５重量部混合し、通常の方法で湿式紡糸、延伸熱処理後、捲縮を付与し、単糸繊度２．２ｄｔｅｘ、繊維長５１ｍｍ;捲縮数１１ケ／２．５ｃｍ;ＬＯＩ＝３８のメタ型芳香族ポリアミド短繊維を得た(商品名：コーネックス、帝人テクノプロダクツ製)。
この短繊維と共重合パラアミド繊維(テクノーラ短繊維、帝人テクノプロダクツ(株)製、単糸繊度１．７ｄＴｅｘ;繊維長５１ｍｍ;捲縮数１０ケ／ｉｎ)、パラ型芳香族ポリアミド繊維(トワロン、帝人トワロン株)製、単糸繊度１．７ｄＴｅｘ;繊維長５１ｍｍ;捲縮数１０ケ／ｉｎ)を表１に示す割合で混合した
そののち、毛番手で６８／２の紡績糸をつくり、たて密度８８本/インチ、よこ密度７４本/インチの綾織物を作成した。結果を表１に示す。
Examples 1-2
5 parts by weight of tris (2,4-dichlorophenyl) phosphate as a flame retardant is mixed with 100 parts by weight of polymetaphenylene isophthalamide having an intrinsic viscosity of 1.8, and after wet spinning and drawing heat treatment by a usual method, crimping is performed. To give a meta-type aromatic polyamide short fiber having a single yarn fineness of 2.2 dtex, a fiber length of 51 mm; a crimp number of 11 / 2.5 cm; and a LOI = 38 (trade name: Conex, manufactured by Teijin Techno Products) .
This short fiber and copolymerized paraamide fiber (Technola short fiber, manufactured by Teijin Techno Products Co., Ltd., single yarn fineness 1.7 dTex; fiber length 51 mm; crimp number 10 / in), para type aromatic polyamide fiber (Twaron, Teijin Twaron Co., Ltd.), single yarn fineness 1.7 dTex; fiber length 51 mm; crimp number 10 pcs / in) was mixed at the ratio shown in Table 1, and then 68/2 spun yarn was made with the hair count. A twill fabric having a density of 88 / inch and a weft density of 74 / inch was prepared. The results are shown in Table 1.
実施例３
さらに、難燃レーヨン(レンチング社製２２ｄＴｅｘ,５１ｍｍ長)を混合した以外は、実施例１〜２と同様に紡糸、紡績、織物作成を行った。結果を表１に示す。
Example 3
Further, spinning, spinning, and fabric preparation were performed in the same manner as in Examples 1 and 2 except that flame retardant rayon (22 dTex, 51 mm length, manufactured by Lenzing) was mixed. The results are shown in Table 1.
比較例１〜２
各繊維の混合率を変化させた以外は、実施例1と同様に紡糸、紡績、織物作成を行った。
各繊維の混率、および評価結果を表１に示す。
Comparative Examples 1-2
Spinning, spinning, and fabric preparation were performed in the same manner as in Example 1 except that the mixing ratio of each fiber was changed.
Table 1 shows the mixing ratio of each fiber and the evaluation results.
本発明の布帛は、難燃性、耐収縮性、耐フィブリル性を満足させ、かつ軽量で優れた耐熱特性を示すので、消防士、飛行士、レースドライバー、電力会社、化学会社の作業者など火炎に曝される可能性のある作業に従事する人々が着用するのに適した耐熱性防護服のほか、消防服、レーシングスーツなどの用途に有用である。 Since the fabric of the present invention satisfies flame retardancy, shrinkage resistance, and fibril resistance, and is lightweight and exhibits excellent heat resistance, firefighters, aviators, race drivers, electric power companies, chemical company workers, etc. In addition to heat-resistant protective clothing suitable for wearing by people engaged in work that may be exposed to flames, it is useful for applications such as fire-fighting clothing and racing suits.
Claims (3)
A heat-resistant protective clothing using the fabric according to claim 1.
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| JP2007077537A (en) * | 2005-09-14 | 2007-03-29 | Teijin Techno Products Ltd | Heat-resistant cloth and heat-resistant protective clothing composed of the same |
| US9169582B2 (en) * | 2011-09-02 | 2015-10-27 | E I Du Pont De Nemours And Company | High moisture regain yarn, fabrics, and garments having superior arc protection |
| JP6730572B6 (en) * | 2015-03-31 | 2020-09-02 | ダイワボウホールディングス株式会社 | Flame-retardant composite molding substrate, flame-retardant composite molding and method for producing the same |
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| JPH01221537A (en) * | 1988-02-26 | 1989-09-05 | Teijin Ltd | Flame-resistant fiber |
| JPH0995870A (en) * | 1995-09-29 | 1997-04-08 | Teijin Ltd | Aromatic polyamide-containing dyed textile fabric and dyeing of aromatic polyamide-containing textile fabric |
| JP2001192931A (en) * | 2000-01-11 | 2001-07-17 | Teijin Ltd | Method of producing aromatic polyamide fiber, and method of producing aromatic polyamide fiber paper |
| JP2002302837A (en) * | 2001-04-05 | 2002-10-18 | Teijin Ltd | Wholly aromatic polyamide fiber structural product with improved dyeability |
| JP2002339122A (en) * | 2001-05-23 | 2002-11-27 | Teijin Ltd | Heat-resistant protective clothing |
| JP2003201643A (en) * | 2002-01-07 | 2003-07-18 | Teijin Ltd | Highly flame-retardant dyed textile structural product |
| JP2004197260A (en) * | 2002-12-18 | 2004-07-15 | Teijin Ltd | Heat-resistant fabric |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01221537A (en) * | 1988-02-26 | 1989-09-05 | Teijin Ltd | Flame-resistant fiber |
| JPH0995870A (en) * | 1995-09-29 | 1997-04-08 | Teijin Ltd | Aromatic polyamide-containing dyed textile fabric and dyeing of aromatic polyamide-containing textile fabric |
| JP2001192931A (en) * | 2000-01-11 | 2001-07-17 | Teijin Ltd | Method of producing aromatic polyamide fiber, and method of producing aromatic polyamide fiber paper |
| JP2002302837A (en) * | 2001-04-05 | 2002-10-18 | Teijin Ltd | Wholly aromatic polyamide fiber structural product with improved dyeability |
| JP2002339122A (en) * | 2001-05-23 | 2002-11-27 | Teijin Ltd | Heat-resistant protective clothing |
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| JP2004197260A (en) * | 2002-12-18 | 2004-07-15 | Teijin Ltd | Heat-resistant fabric |
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