JP6666129B2 - Fabrics and textile products - Google Patents
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- JP6666129B2 JP6666129B2 JP2015242066A JP2015242066A JP6666129B2 JP 6666129 B2 JP6666129 B2 JP 6666129B2 JP 2015242066 A JP2015242066 A JP 2015242066A JP 2015242066 A JP2015242066 A JP 2015242066A JP 6666129 B2 JP6666129 B2 JP 6666129B2
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- 239000004744 fabric Substances 0.000 title claims description 51
- 239000004753 textile Substances 0.000 title description 4
- 239000000835 fiber Substances 0.000 claims description 70
- 239000004760 aramid Substances 0.000 claims description 23
- 229920003235 aromatic polyamide Polymers 0.000 claims description 23
- 238000000034 method Methods 0.000 claims description 23
- 239000004693 Polybenzimidazole Substances 0.000 claims description 17
- 229920006376 polybenzimidazole fiber Polymers 0.000 claims description 17
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 12
- 238000007654 immersion Methods 0.000 claims description 12
- 230000014759 maintenance of location Effects 0.000 claims description 10
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 8
- 239000007864 aqueous solution Substances 0.000 claims description 8
- 239000002759 woven fabric Substances 0.000 claims description 7
- 229920000742 Cotton Polymers 0.000 claims description 6
- 239000000428 dust Substances 0.000 claims description 5
- 125000003118 aryl group Chemical group 0.000 claims description 4
- 238000003763 carbonization Methods 0.000 claims description 4
- 229920000642 polymer Polymers 0.000 claims description 3
- 239000000126 substance Substances 0.000 description 14
- 238000009941 weaving Methods 0.000 description 7
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 description 6
- 239000003063 flame retardant Substances 0.000 description 6
- 239000004952 Polyamide Substances 0.000 description 5
- 230000000052 comparative effect Effects 0.000 description 5
- 238000011156 evaluation Methods 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 238000002156 mixing Methods 0.000 description 5
- 229920002647 polyamide Polymers 0.000 description 5
- 229920002480 polybenzimidazole Polymers 0.000 description 4
- LVGKZTVMAHRVFR-UHFFFAOYSA-N 4-(phenoxazine-10-carbonyl)benzamide Chemical compound C1=CC(C(=O)N)=CC=C1C(=O)N1C2=CC=CC=C2OC2=CC=CC=C21 LVGKZTVMAHRVFR-UHFFFAOYSA-N 0.000 description 3
- 239000010410 layer Substances 0.000 description 3
- 238000009987 spinning Methods 0.000 description 3
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 2
- 229920000297 Rayon Polymers 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 229920000561 Twaron Polymers 0.000 description 2
- 238000010042 air jet spinning Methods 0.000 description 2
- 150000004985 diamines Chemical class 0.000 description 2
- 230000001771 impaired effect Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- -1 polyparaphenylene terephthalamide Polymers 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 239000002964 rayon Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 239000011232 storage material Substances 0.000 description 2
- 239000002344 surface layer Substances 0.000 description 2
- 239000004762 twaron Substances 0.000 description 2
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 description 1
- 229920002972 Acrylic fiber Polymers 0.000 description 1
- 229920002978 Vinylon Polymers 0.000 description 1
- RPESSMZIPYBFDO-UHFFFAOYSA-N [4-(7-azabicyclo[4.1.0]hepta-1,3,5-triene-7-carbonyl)phenyl]-(7-azabicyclo[4.1.0]hepta-1,3,5-trien-7-yl)methanone Chemical compound C12=CC=CC=C2N1C(=O)C(C=C1)=CC=C1C(=O)N1C2=CC=CC=C21 RPESSMZIPYBFDO-UHFFFAOYSA-N 0.000 description 1
- 239000006096 absorbing agent Substances 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 239000003242 anti bacterial agent Substances 0.000 description 1
- 239000002216 antistatic agent Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 238000007334 copolymerization reaction Methods 0.000 description 1
- 239000002781 deodorant agent Substances 0.000 description 1
- 238000004043 dyeing Methods 0.000 description 1
- 238000005338 heat storage Methods 0.000 description 1
- 239000000077 insect repellent Substances 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 239000004745 nonwoven fabric Substances 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 239000005871 repellent Substances 0.000 description 1
- 230000002940 repellent Effects 0.000 description 1
- 238000007378 ring spinning Methods 0.000 description 1
- 210000004243 sweat Anatomy 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Landscapes
- Professional, Industrial, Or Sporting Protective Garments (AREA)
- Woven Fabrics (AREA)
Description
本発明は、難燃性、耐薬品性、布帛強度、および軽量性に優れた布帛および繊維製品に関する。 The present invention relates to a fabric and a fiber product excellent in flame retardancy, chemical resistance, fabric strength, and lightness.
人体保護用の防護衣料の分野において、耐熱性、強度等の特性が要求される。例えば、消防士が着用する消防服に使用される難燃性織物では、難燃性、耐熱性だけではなく、機械的特性も求められる考慮されなければならない。さらには、使用させる環境においては化学品暴露も想定されることから耐薬品性も求められる。耐熱防護衣料では、着用者が安全であり快適であることを確保するため、複数の特性を兼備する必要がある。 In the field of protective clothing for protecting the human body, characteristics such as heat resistance and strength are required. For example, in a flame-retardant fabric used for fire-fighting clothes worn by firefighters, not only flame retardancy and heat resistance but also mechanical properties must be considered. Furthermore, chemical resistance is also required in the environment in which it is used, since chemical exposure is also assumed. Heat-resistant protective garments need to have multiple properties to ensure that the wearer is safe and comfortable.
かかる問題を解決するため、例えば、耐熱性のある難燃繊維と高強力繊維を混紡、交編織または２層構造布帛とする方法などが提案されている（特許文献１、特許文献２、特許文献３参照）。
しかしながら、耐熱性、難燃性、引裂強さには優れるものの、目付が重いという問題や耐薬品性を有しないという問題があった。
In order to solve such a problem, for example, a method has been proposed in which a heat-resistant flame-retardant fiber and a high-strength fiber are blended, cross-knitted, or formed into a two-layer structure fabric (Patent Documents 1, 2, and 3). 3).
However, although excellent in heat resistance, flame retardancy, and tear strength, there is a problem that the basis weight is heavy and there is no chemical resistance.
本発明は上記の背景に鑑みなされたものであり、その目的は、難燃性、耐薬品性、布帛強度、および軽量性に優れた布帛および繊維製品を提供することにある。 The present invention has been made in view of the above background, and an object of the present invention is to provide a fabric and a fiber product excellent in flame retardancy, chemical resistance, fabric strength, and lightweight.
本発明者は上記の課題を達成するため鋭意検討した結果、ポリベンゾイミダゾール繊維と共重合型芳香族ポリアミド繊維とで構成される糸条を用いて布帛を構成と、難燃性、耐薬品性、布帛強度、および軽量性に優れた布帛が得られることを見出し、さらに鋭意検討を重ねることにより本発明を完成するに至った。 The present inventor has conducted intensive studies to achieve the above object, and as a result, constructed a fabric using a yarn composed of a polybenzimidazole fiber and a copolymerizable aromatic polyamide fiber, and obtained flame retardancy and chemical resistance. The present inventors have found that a fabric excellent in fabric strength and lightness can be obtained, and have made intensive studies to complete the present invention.
かくして、本発明によれば「ポリベンゾイミダゾール繊維と共重合型芳香族ポリアミド繊維とを含む糸条を含み、
前記糸条を構成する繊維がポリベンゾイミダゾール繊維と共重合型芳香族ポリアミド繊維のみであり、かつポリベンゾイミダゾール繊維と共重合型芳香族ポリアミド繊維の重量比が（前者／後者）２０／８０〜８０／２０の範囲内であり、
前記糸条が紡績糸であり、
前記糸条において英式綿番手で１０〜３０の範囲内であり、
前記糸条に撚り係数５〜１１の範囲内で撚りがかけられており、
撚り係数＝Ｔ／√ｎ
ただし、Ｔは２．５４ｃｍあたりの総撚数であり、ｎは英式綿番手である。
布帛が平織組織または綾織組織または朱子織組織を有する織物であり、
目付けが１５０〜３００ｇ／ｃｍ ２ の範囲内であり、
布帛の経方向または緯方向において、ＪＩＳ Ｌ１０９６引裂強さシングルタング Ａ−１法の値が２００Ｎ以上であり、
ＪＩＳ Ｌ１０９１Ａ−１法６０秒接炎において、残炎時間が０．５秒以下かつ残じん時間が０．５秒以下かつ炭化面積が３ｃｍ ２ 以下であり、
ＪＩＳ Ｌ１０９１Ａ−１法１２秒接炎において、残炎時間が２秒以下かつ残じん時間が２秒以下かつ炭化長が１０ｃｍ以下であり、
ＪＩＳ Ｌ１０９１Ｅ法において、ＬＯＩ値が３５以上であり、
硫酸２０ｗｔ％水溶液、室温４８時間浸漬前後の引裂強さの保持率が８０％以上であり、
かつ水酸化ナトリウム１０ｗｔ％水溶液、室温４８時間浸漬前後の引裂強さの保持率が６０％以上であることを特徴とする布帛。」が提供される。
その際、前記共重合型芳香族ポリアミド繊維において、ポリマー繰返し単位の８０モル％以上が下記式からなる芳香族コポリアミドで構成されることが好ましい。
Thus, viewed contains a yarn comprising according to the present invention and "polybenzimidazole fibers copolymerized with type aromatic polyamide fibers,
The fiber constituting the yarn is only polybenzimidazole fiber and copolymerized aromatic polyamide fiber, and the weight ratio of polybenzimidazole fiber and copolymerized aromatic polyamide fiber is (former / latter) 20 / 80- 80/20,
The yarn is a spun yarn,
In the yarn is in the range of 10-30 in English cotton count,
The yarn is twisted within a twist coefficient of 5 to 11,
Twist coefficient = T / √n
Here, T is the total number of twists per 2.54 cm, and n is English cotton count.
The fabric is a woven fabric having a plain weave structure, a twill weave structure, or a satin weave structure,
The basis weight is in the range of 150 to 300 g / cm 2 ,
In the warp or weft direction of the fabric, the value of the JIS L1096 tear strength single tongue A-1 method is 200 N or more,
In the JIS L1091A-1 method 60 seconds flame contact, the after-flame time is 0.5 seconds or less, the dust time is 0.5 seconds or less, and the carbonized area is 3 cm 2 or less,
In the JIS L1091A-1 method 12-second flame contact, the after-flame time is 2 seconds or less, the dust time is 2 seconds or less, and the carbonization length is 10 cm or less,
According to JIS L1091E method, LOI value is 35 or more,
20% by weight sulfuric acid aqueous solution, the retention of tear strength before and after immersion for 48 hours at room temperature is 80% or more,
A fabric characterized by having a 10% aqueous solution of sodium hydroxide and a tear strength retention ratio of 60% or more before and after immersion at room temperature for 48 hours . Is provided.
In this case, in the copolymerizable aromatic polyamide fiber, it is preferable that 80 mol% or more of the polymer repeating unit is composed of an aromatic copolyamide represented by the following formula.
また、織物に前記糸条とは異なる第２の糸条が含まれ、かかる第２の糸条が経糸および緯糸に格子状に織り込まれていることが好ましい。 Also, the said yarns in the fabric contains different second yarn, such second yarn it is preferred that the woven in a lattice pattern on the warp and weft.
また、本発明によれば、前記の布帛を用いてなり、消防服、防火服、執務服、モータースポーツ用レーシングスーツ、作業服、手袋、帽子、およびベストからなる群より選択されるいずれかの繊維製品が提供される。 Further, according to the present invention, any of the above-mentioned cloths is used and selected from the group consisting of firefighting suits, fire protection suits, work suits, racing suits for motor sports, work clothes, gloves, hats, and vests. A textile product is provided.
本発明によれば、難燃性、耐薬品性、布帛強度、および軽量性に優れた布帛および繊維製品が得られる。 ADVANTAGE OF THE INVENTION According to this invention, the fabric and fiber products excellent in flame retardance, chemical resistance, fabric strength, and lightweight are obtained.
以下、本発明の実施の形態について詳細に説明する。
本発明の布帛は、ポリベンゾイミダゾール繊維と共重合型芳香族ポリアミド繊維とを含む糸条を含む。
ここで、ポリベンゾイミダゾール繊維としてはＰＢＩアドバンストマテリアルズ社などから市販されている市販品でよい。
一方、共重合型芳香族ポリアミド繊維としては、ポリマー繰返し単位の８０モル％以上が下記式からなる芳香族コポリアミド（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）で構成されることが好ましい。
Hereinafter, embodiments of the present invention will be described in detail.
The fabric of the present invention includes a yarn including a polybenzimidazole fiber and a copolymerizable aromatic polyamide fiber.
Here, the polybenzimidazole fiber may be a commercially available product commercially available from PBI Advanced Materials.
On the other hand, as the copolymerizable aromatic polyamide fiber, 80 mol% or more of the polymer repeating unit may be composed of an aromatic copolyamide (copolyparaphenylene • 3.4′oxydiphenylene terephthalamide) represented by the following formula. preferable.
かかるポリアミドには各種添加剤が含まれていてもよい。また、最大で１０重量％の量の他の高分子材料をポリアミドと混合すること、またはポリアミドを構成するジアミン成分の１０％を他のジアミン成分で置き換えるかもしくはポリアミドを構成するジ酸クロリド成分の１０％を他のジ酸クロリド成分で置き換えたコポリマーを使用することができる。 Such a polyamide may contain various additives. It is also possible to mix up to 10% by weight of another polymeric material with the polyamide, or to replace 10% of the diamine component constituting the polyamide with another diamine component or to replace the diacid chloride component constituting the polyamide. Copolymers with 10% replaced by other diacid chloride components can be used.
また、前記糸条を構成する繊維がポリベンゾイミダゾール繊維と共重合型芳香族ポリアミド繊維のみであることが好ましい。また、ポリベンゾイミダゾール繊維と共重合型芳香族ポリアミド繊維の重量比が（前者／後者）２０／８０〜８０／２０（より好ましくは３５／６５〜６５／３５）の範囲内であることが好ましい。ポリベンゾイミダゾール繊維の含有量が該範囲よりも小さいと、難燃性が低下するおそれがある。逆に、共重合型芳香族ポリアミド繊維の含有量が該範囲よりも小さいと、耐薬品性が低下するおそれがある。 Further, it is preferable that the fibers constituting the yarn are only polybenzimidazole fibers and copolymerizable aromatic polyamide fibers. The weight ratio between the polybenzimidazole fiber and the copolymerized aromatic polyamide fiber is preferably in the range of (former / latter) 20/80 to 80/20 (more preferably 35/65 to 65/35). . When the content of the polybenzimidazole fiber is smaller than the range, the flame retardancy may be reduced. Conversely, if the content of the copolymerizable aromatic polyamide fiber is smaller than the above range, chemical resistance may be reduced.
前記糸条はマルチフィラメント（長繊維）でもよいが、難燃性と耐薬品性を両立させる上で紡績糸が好ましい。ポリベンゾイミダゾール繊維と共重合型芳香族ポリアミド繊維とを混紡して紡績糸とすることにより両繊維が混ざり合い難燃性と耐薬品性の両立が可能となる。なかでも、単繊維繊度１〜５ｄｔｅｘ、繊維長２５〜２００ｍｍのポリベンゾイミダゾール繊維からなる短繊維と、単繊維繊度１〜５ｄｔｅｘ、繊維長２５〜２００ｍｍの共重合型芳香族ポリアミド繊維からなる短繊維を用いた紡績糸が好ましい。
かかる紡績糸において、英式綿番手で１０〜３０の範囲内であることが好ましい。１０番よりも小さい（繊度が太い）場合、生地重量が増加し軽量性が損なわれるおそれがある。逆に３０番より大きい（繊度が細い）場合、布帛の引裂強さが低下するおそれがある。
The yarn may be a multifilament (long fiber), but a spun yarn is preferable in order to achieve both flame retardancy and chemical resistance. By blending a polybenzimidazole fiber and a copolymerization type aromatic polyamide fiber into a spun yarn, both fibers are mixed and both flame retardancy and chemical resistance can be achieved. Above all, short fibers composed of polybenzimidazole fibers having a single fiber fineness of 1 to 5 dtex and a fiber length of 25 to 200 mm, and short fibers composed of copolymerized aromatic polyamide fibers having a single fiber fineness of 1 to 5 dtex and a fiber length of 25 to 200 mm Is preferred.
In such a spun yarn, it is preferable that it is in the range of 10 to 30 in English cotton count. When it is smaller than No. 10 (fineness is large), the weight of the dough may increase and lightness may be impaired. Conversely, if the number is larger than 30 (fineness is small), the tear strength of the fabric may be reduced.
特に、前記糸条に撚り係数５〜１１の範囲内で撚りがかけられていると、難燃性と耐薬品性と布帛強度が向上し好ましい。
撚り係数＝Ｔ／√ｎ
ただし、Ｔは２．５４ｃｍあたりの総撚数であり、ｎは英式綿番手である。総撚数とは、例えば下撚数＋上撚数を意味する。
撚り係数が５よりも小さいと布帛において十分な引裂強さを得られないおそれがある。逆に、撚り係数が１１よりも大きいと、解撚トルクのため製織工程が困難になるおそれがある。
In particular, when the yarn is twisted within a twist coefficient range of 5 to 11, the flame retardancy, chemical resistance and fabric strength are improved, which is preferable.
Twist coefficient = T / √n
Here, T is the total number of twists per 2.54 cm, and n is English cotton count. The total number of twists means, for example, the number of lower twists + the number of upper twists.
If the twist coefficient is less than 5, there is a possibility that a sufficient tear strength cannot be obtained in the fabric. Conversely, if the twist coefficient is greater than 11, the weaving process may be difficult due to untwisting torque.
前記紡績糸の製造方法は公知の方法でよく、例えば、リング精紡、コア精紡およびエアジェット精紡、空気を用いてステープル繊維を撚糸する村田エアジェット精紡のような高次エア精紡技術等、公知の精紡技術により製造してよい。
本発明の布帛において、布帛の組織は限定されず織物、編物、不織布いずれでもよいが、優れた布帛強度を得る上で織物が好ましい。その際、織物が平織組織または綾織組織または朱子織組織を有することが好ましい。
The method for producing the spun yarn may be a known method, such as ring spinning, core spinning and air jet spinning, or higher air spinning such as Murata air jet spinning in which staple fibers are twisted using air. It may be manufactured by a known spinning technique such as a technique.
In the fabric of the present invention, the structure of the fabric is not limited, and any of a woven fabric, a knitted fabric, and a nonwoven fabric may be used. However, a woven fabric is preferable for obtaining excellent fabric strength. At that time, the woven fabric preferably has a plain weave structure, a twill weave structure, or a satin weave structure.
また、織物に前記糸条とは異なる糸条（「第２の糸条」と称す。）が含まれ、かかる第２の糸条が経糸および緯糸に格子状に織り込まれていることが好ましい。かかる組織はリップストップ組織とも称される。
その際、経方向および／または緯方向に互いに隣り合う第２の糸条同士の間隔は、２〜１５ｍｍ（より好ましくは３〜８ｍｍ）の範囲内であることが好ましい。
Preferably, the woven fabric includes a yarn different from the yarn (referred to as "second yarn"), and the second yarn is preferably woven into the warp and the weft in a lattice pattern. Such a tissue is also called a ripstop tissue.
At that time, the interval between the second yarns adjacent to each other in the warp direction and / or the weft direction is preferably in the range of 2 to 15 mm (more preferably, 3 to 8 mm).
前記第２の糸条を構成する繊維としては、メタ系芳香族ポリアミド繊維、パラ型芳香族ポリアミド繊維、導電性繊維、ポリエステル繊維、ナイロン繊維、アクリル繊維、アクリレート系繊維、難燃レーヨン繊維、難燃ビニロン繊維などが例示される。
前記第２の糸条はマルチフィラメント（長繊維）でもよいし紡績糸でもよい。
本発明の布帛において、布帛の製造方法は特に限定されず、レピア織機やグリッパー織機など公知の織編機を用いることができる。
The fibers constituting the second yarn include meta-based aromatic polyamide fibers, para-type aromatic polyamide fibers, conductive fibers, polyester fibers, nylon fibers, acrylic fibers, acrylate-based fibers, flame-retardant rayon fibers, and flame-retardant rayon fibers. Combustion vinylon fiber and the like are exemplified.
The second yarn may be a multifilament (long fiber) or a spun yarn.
In the fabric of the present invention, the method for producing the fabric is not particularly limited, and a known weaving machine such as a rapier loom or a gripper loom can be used.
本発明の布帛において、目付けが１５０〜３００ｇ／ｃｍ２（より好ましくは１７０〜２５０ｇ／ｃｍ２）の範囲内であることが好ましい。目付けが該範囲よりも小さい場合は、難燃性、引裂強さが低下するおそれがある。逆に、目付けが該範囲よりも大きい場合は、重量が重くなり軽量性が損なわれるおそれがある。 In the fabric of the present invention, the basis weight is preferably in the range of 150 to 300 g / cm 2 (more preferably 170 to 250 g / cm 2 ). If the basis weight is smaller than the above range, flame retardancy and tear strength may be reduced. Conversely, if the basis weight is larger than the above range, the weight becomes heavy and the lightness may be impaired.
本発明の布帛において、染色加工だけでなく、吸汗剤、撥水剤、蓄熱剤、紫外線遮蔽あるいは制電剤、抗菌剤、消臭剤、防虫剤、蓄光剤、再帰反射剤等の機能を付与する他の各種加工を付加適用してもよい。
本発明の布帛は前記の糸条を含むので、難燃性、耐薬品性、布帛強度、および軽量性に優れる。
ここで、布帛の経方向または緯方向において、ＪＩＳ Ｌ１０９６引裂強さシングルタング Ａ−１法の値が２００Ｎ以上（より好ましくは２００〜５００Ｎ）であることが好ましい。
In the fabric of the present invention, in addition to the dyeing processing, functions such as a sweat absorbing agent, a water repellent, a heat storage agent, an ultraviolet ray shielding or antistatic agent, an antibacterial agent, a deodorant, an insect repellent, a light storage agent, and a retroreflective agent are provided. Various other processes may be additionally applied.
Since the fabric of the present invention contains the yarn, the fabric is excellent in flame retardancy, chemical resistance, fabric strength, and lightness.
Here, in the warp direction or the weft direction of the fabric, the value according to JIS L1096 tear strength single tongue A-1 method is preferably 200 N or more (more preferably 200 to 500 N).
また、ＪＩＳ Ｌ１０９１Ａ−１法６０秒接炎において、残炎時間が０．５秒以下かつ残じん時間が０．５秒以下かつ炭化面積が３ｃｍ２以下であることが好ましい。
また、ＪＩＳ Ｌ１０９１Ａ−１法１２秒接炎において、残炎時間が２秒以下かつ残じん時間が２秒以下かつ炭化長が１０ｃｍ以下（より好ましくは残炎時間が１秒以下、かつ残じん時間が１秒以下、かつ炭化長が５ｃｍ以下）であることが好ましい。
また、ＪＩＳ Ｌ１０９１Ｅにおいて、ＬＯＩ値が３５以上（より好ましくは３５〜５０）であることが好ましい。
また、硫酸２０ｗｔ％水溶液、室温４８時間浸漬前後の引裂強さの保持率が８０％以上であることが好ましい。
また、水酸化ナトリウム１０ｗｔ％水溶液、室温４８時間浸漬前後の引裂強さの保持率が６０％以上であることが好ましい。
ただし、引裂強さの保持率は下記式により算出する。
引裂強さの保持率（％）＝（浸漬後の引裂強さ）／（浸漬前の引裂強さ）×１００
Further, in the JIS L1091A-1 method 60 seconds flame contact, it is preferable that the residual flame time is 0.5 seconds or less, the residual dust time is 0.5 seconds or less, and the carbonized area is 3 cm 2 or less.
In the JIS L1091A-1 method 12-second flame contact, the afterflame time is 2 seconds or less, the residual time is 2 seconds or less, and the carbonization length is 10 cm or less (more preferably, the residual flame time is 1 second or less, and the residual time is Is 1 second or less, and the carbonization length is 5 cm or less).
Further, according to JIS L1091E, the LOI value is preferably 35 or more (more preferably 35 to 50).
Further, it is preferable that the retention of tear strength before and after immersion in a 20 wt% aqueous solution of sulfuric acid at room temperature for 48 hours is 80% or more.
Further, it is preferable that the retention of tear strength before and after immersion in a 10 wt% aqueous solution of sodium hydroxide at room temperature for 48 hours is 60% or more.
However, the retention of tear strength is calculated by the following equation.
Retention of tear strength (%) = (Tear strength after immersion) / (Tear strength before immersion) × 100
次に、本発明の繊維製品は、前記の布帛を用いてなる、消防服、防火服、執務服、モータースポーツ用レーシングスーツ、作業服、手袋、帽子、およびベストからなる群より選択されるいずれかの繊維製品である。なお、前記作業服には、製鉄所や鉄鋼工場の作業用作業服、溶接作業用作業服、防爆エリアにおける作業服などが含まれる。また、前記手袋には、精密部品を取り扱う航空機産業、情報機器産業、精密機器産業などで使用される作業手袋などが含まれる。
かかる繊維製品は前記の布帛を用いているので、難燃性、耐薬品性、および優れた生地物性と軽量を兼ね備えている。
ここで、前記の布帛は単独で用いてもよいし、他の布帛と複合して用いてもよい。その際、前記布帛を表地層とする多層構造体で構成されていることが好ましい。特に好ましい多層構造としては、（ａ）本発明の布帛からなる表地層、（ｂ）難燃性繊維からなる布帛に透湿防水性フィルムを積層してなる中間層、（ｃ）難燃性繊維からなる布帛からなる遮熱層、をこの順序に重ね合わせた多層構造体が挙げられる。
Next, the textile product of the present invention is any one selected from the group consisting of firefighting clothing, fire protection clothing, work clothing, racing suits for motor sports, work clothing, gloves, hats, and vests using the above-mentioned fabric. It is a textile product. The work clothes include work clothes for a steel mill or a steel factory, work clothes for welding work, work clothes in an explosion-proof area, and the like. The gloves include work gloves used in the aircraft industry, information equipment industry, precision equipment industry, and the like that handle precision parts.
Since such a fiber product uses the above-described cloth, it has both flame retardancy, chemical resistance, and excellent physical properties and light weight.
Here, the above-mentioned cloth may be used alone, or may be used in combination with another cloth. In this case, it is preferable that the fabric be constituted by a multilayer structure having the fabric as a surface layer. Particularly preferred multilayer structures include (a) a surface layer made of the fabric of the present invention, (b) an intermediate layer formed by laminating a moisture-permeable waterproof film on a fabric made of flame-retardant fibers, and (c) a flame-retardant fiber. And a heat-insulating layer made of a cloth made of a cloth in this order.
次に本発明の実施例及び比較例を詳述するが、本発明はこれらによって限定されるものではない。
（１）布帛目付
ＪＩＳ Ｌ １０９６により測定した。
（２）引裂強さ
ＪＩＳ Ｌ １０９６ Ａ−１法（シングルタング法）により測定した。
（３）難燃性
ＪＩＳ Ｌ １０９１ Ａ−１法６０秒接炎およびＡ−４法１２秒接炎、Ｅ法（ＬＯＩ）により測定した。
（４）耐薬品性
硫酸２０ｗｔ％水溶液、室温４８時間浸漬前後の引裂強さ、および水酸化ナトリウム１０ｗｔ％水溶液、室温４８時間浸漬前後の引裂強さを評価した。ただし、引裂強さは上記の方法で測定し、引裂強さの保持率は下記式により算出した。
引裂強さの保持率（％）＝（浸漬後の引裂強さ）／（浸漬前の引裂強さ）×１００
Next, Examples and Comparative Examples of the present invention will be described in detail, but the present invention is not limited thereto.
(1) Fabric weight Measured according to JIS L 1096.
(2) Tear strength Measured according to JIS L 1096 A-1 method (single tongue method).
(3) Flame retardancy Measured according to JIS L 1091 A-1 method 60 seconds flame contact, A-4 method 12 seconds flame contact, E method (LOI).
(4) Chemical Resistance The tear strength before and after immersion in a sulfuric acid 20 wt% aqueous solution at room temperature for 48 hours and the tear strength before and after immersion in a sodium hydroxide 10 wt% aqueous solution for 48 hours at room temperature were evaluated. However, the tear strength was measured by the above method, and the retention of the tear strength was calculated by the following equation.
Retention of tear strength (%) = (Tear strength after immersion) / (Tear strength before immersion) × 100
［実施例１］
平均単繊維繊度１．５ｄｔｅｘ、繊維長５１ｍｍのポリベンゾイミダゾール繊維（ＰＢＩアドバンストマテリアルズ社製）を４０重量％、平均単繊維繊度１．７ｄｔｅｘ、繊維長５１ｍｍの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共重合型芳香族ポリアミド繊維（帝人株式会社製、登録商標「テクノーラ」）を６０重量％の混合比率で混紡して紡績糸を得た。撚数、繊度を表１に示す。
上記糸条を用い、表１に示す組織、経緯密度、目付で製織した。各評価試験の結果を表１に示す。
[Example 1]
40% by weight of polybenzimidazole fiber (manufactured by PBI Advanced Materials) having an average monofilament fineness of 1.5 dtex and a fiber length of 51 mm, copolyparaphenylene • 3.4′oxy having an average monofilament fineness of 1.7 dtex and a fiber length of 51 mm A copolymerized aromatic polyamide fiber (manufactured by Teijin Limited, registered trademark "Technola") composed of diphenylene terephthalamide was blended at a mixing ratio of 60% by weight to obtain a spun yarn. Table 1 shows the number of twists and fineness.
Using the above yarn, weaving was performed with the structure, weft density and basis weight shown in Table 1. Table 1 shows the results of each evaluation test.
［比較例１］
平均単繊維繊度１．５ｄｔｅｘ、繊維長５１ｍｍのポリベンゾイミダゾール繊維（ＰＢＩアドバンストマテリアルズ社製）を４０重量％、平均単繊維繊度１．７ｄｔｅｘ、繊維長５１ｍｍのポリパラフェニレンテレフタルアミドからなる芳香族ポリアミド繊維（帝人株式会社製、登録商標「トワロン」）を６０重量％の混合比率で混紡して紡績糸を得た。撚数、繊度を表１に示す。
上記糸条を用い、表１に示す組織、経緯密度、目付で製織した。各評価試験の結果を表１に示す。
[Comparative Example 1]
40 weight% of polybenzimidazole fiber (manufactured by PBI Advanced Materials) having an average single fiber fineness of 1.5 dtex and a fiber length of 51 mm, and an aromatic composed of polyparaphenylene terephthalamide having an average single fiber fineness of 1.7 dtex and a fiber length of 51 mm Polyamide fiber (manufactured by Teijin Limited, registered trademark “Twaron”) was blended at a mixing ratio of 60% by weight to obtain a spun yarn. Table 1 shows the number of twists and fineness.
Using the above yarn, weaving was performed with the structure, weft density and basis weight shown in Table 1. Table 1 shows the results of each evaluation test.
［比較例２］
平均単繊維繊度１．７ｄｔｅｘ、繊維長５１ｍｍの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共重合型芳香族ポリアミド繊維（帝人株式会社製、登録商標「テクノーラ」）を２０重量％、平均単繊維繊度１．７ｄｔｅｘ、繊維長５１ｍｍのポリパラフェニレンテレフタルアミドからなる芳香族ポリアミド繊維（帝人株式会社製、登録商標「トワロン」）を４０重量％、平均単繊維繊度１．７ｄｔｅｘ、繊維長５１ｍｍのメタ型芳香族ポリアミド繊維（帝人株式会社製、登録商標「コーネックス」）を４０重量％の混合比率で混紡して紡績糸を得た。撚数、繊度を表１に示す。
上記糸条を用い、表１に示す組織、経緯密度、目付で製織した。各評価試験の結果を表１に示す。
[Comparative Example 2]
20% by weight of a copolymerizable aromatic polyamide fiber (manufactured by Teijin Limited, registered trademark "Technola") composed of copolyparaphenylene / 3.4'oxydiphenylene terephthalamide having an average single fiber fineness of 1.7 dtex and a fiber length of 51 mm. 40% by weight of an aromatic polyamide fiber (manufactured by Teijin Limited, registered trademark "Twaron") composed of polyparaphenylene terephthalamide having an average single fiber fineness of 1.7 dtex and a fiber length of 51 mm, and an average single fiber fineness of 1.7 dtex, fiber A spun yarn was obtained by blending a 51 mm long meta-type aromatic polyamide fiber (manufactured by Teijin Limited, registered trademark “Cornex”) at a mixing ratio of 40% by weight. Table 1 shows the number of twists and fineness.
Using the above yarn, weaving was performed with the structure, weft density and basis weight shown in Table 1. Table 1 shows the results of each evaluation test.
［比較例３］
平均単繊維繊度１．５ｄｔｅｘ、繊維長５１ｍｍのポリベンゾイミダゾール繊維（ＰＢＩアドバンストマテリアルズ社製）だけで紡績糸を得た。撚数、繊度を表１に示す。
上記糸条を用い、表１に示す組織、経緯密度、目付で製織した。各評価試験の結果を表１に示す。
[Comparative Example 3]
A spun yarn was obtained using only polybenzimidazole fiber (manufactured by PBI Advanced Materials) having an average single fiber fineness of 1.5 dtex and a fiber length of 51 mm. Table 1 shows the number of twists and fineness.
Using the above yarn, weaving was performed with the structure, weft density and basis weight shown in Table 1. Table 1 shows the results of each evaluation test.
［比較例４］
平均単繊維繊度１．７ｄｔｅｘ、繊維長５１ｍｍの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共重合型芳香族ポリアミド繊維（帝人株式会社製、登録商標「テクノーラ」）だけで紡績糸を得た。撚数、繊度を表１に示す。
上記糸条を用い、表１に示す組織、経緯密度、目付で製織した。各評価試験の結果を表１に示す。
[Comparative Example 4]
A spun yarn composed only of a copolymerizable aromatic polyamide fiber (manufactured by Teijin Limited, registered trademark “Technola”) composed of copolyparaphenylene / 3.4 ′ oxydiphenylene terephthalamide having an average single fiber fineness of 1.7 dtex and a fiber length of 51 mm. I got Table 1 shows the number of twists and fineness.
Using the above yarn, weaving was performed with the structure, weft density and basis weight shown in Table 1. Table 1 shows the results of each evaluation test.
本発明によれば、難燃性、耐薬品性、布帛強度、および軽量性に優れた布帛および繊維製品が提供され、その工業的価値は極めて大である。 According to the present invention, a fabric and a fiber product excellent in flame retardancy, chemical resistance, fabric strength, and lightweight are provided, and their industrial value is extremely large.
Claims (4)
前記糸条を構成する繊維がポリベンゾイミダゾール繊維と共重合型芳香族ポリアミド繊維のみであり、かつポリベンゾイミダゾール繊維と共重合型芳香族ポリアミド繊維の重量比が（前者／後者）２０／８０〜８０／２０の範囲内であり、
前記糸条が紡績糸であり、
前記糸条において英式綿番手で１０〜３０の範囲内であり、
前記糸条に撚り係数５〜１１の範囲内で撚りがかけられており、
撚り係数＝Ｔ／√ｎ
ただし、Ｔは２．５４ｃｍあたりの総撚数であり、ｎは英式綿番手である。
布帛が平織組織または綾織組織または朱子織組織を有する織物であり、
目付けが１５０〜３００ｇ／ｃｍ ２ の範囲内であり、
布帛の経方向または緯方向において、ＪＩＳ Ｌ１０９６引裂強さシングルタング Ａ−１法の値が２００Ｎ以上であり、
ＪＩＳ Ｌ１０９１Ａ−１法６０秒接炎において、残炎時間が０．５秒以下かつ残じん時間が０．５秒以下かつ炭化面積が３ｃｍ ２ 以下であり、
ＪＩＳ Ｌ１０９１Ａ−１法１２秒接炎において、残炎時間が２秒以下かつ残じん時間が２秒以下かつ炭化長が１０ｃｍ以下であり、
ＪＩＳ Ｌ１０９１Ｅ法において、ＬＯＩ値が３５以上であり、
硫酸２０ｗｔ％水溶液、室温４８時間浸漬前後の引裂強さの保持率が８０％以上であり、
かつ水酸化ナトリウム１０ｗｔ％水溶液、室温４８時間浸漬前後の引裂強さの保持率が６０％以上であることを特徴とする布帛。 The yarn that includes a polybenzimidazole fibers copolymerized with type aromatic polyamide fibers seen including,
The fiber constituting the yarn is only polybenzimidazole fiber and copolymerized aromatic polyamide fiber, and the weight ratio of polybenzimidazole fiber and copolymerized aromatic polyamide fiber is (former / latter) 20 / 80- 80/20,
The yarn is a spun yarn,
In the yarn is in the range of 10-30 in English cotton count,
The yarn is twisted within a twist coefficient of 5 to 11,
Twist coefficient = T / √n
Here, T is the total number of twists per 2.54 cm, and n is English cotton count.
The fabric is a woven fabric having a plain weave structure or a twill weave structure or a satin weave structure,
The basis weight is in the range of 150 to 300 g / cm 2 ,
In the warp or weft direction of the fabric, the value of the JIS L1096 tear strength single tongue A-1 method is 200 N or more,
In the JIS L1091A-1 method 60 seconds flame contact, the after-flame time is 0.5 seconds or less, the dust time is 0.5 seconds or less, and the carbonized area is 3 cm 2 or less,
In the JIS L1091A-1 method 12 seconds flame contact, the afterflame time is 2 seconds or less, the dust time is 2 seconds or less, and the carbonization length is 10 cm or less,
According to JIS L1091E method, LOI value is 35 or more,
20% by weight sulfuric acid aqueous solution, the retention of tear strength before and after immersion for 48 hours at room temperature is 80% or more,
A fabric characterized by having a 10% by weight aqueous solution of sodium hydroxide and a retention of tear strength before and after immersion at room temperature for 48 hours of 60% or more .
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| US4958485A (en) * | 1988-12-22 | 1990-09-25 | Springs Industries, Inc. | Corespun yarn for fire resistant safety apparel |
| DE10248999B3 (en) * | 2002-10-21 | 2004-05-06 | Theodolf Fritsche Gmbh & Co. | Multi-layer, breathable textile fabric |
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| JP2007092209A (en) * | 2005-09-28 | 2007-04-12 | Teijin Techno Products Ltd | Heat-resiatant fabric and heat-resiatant protective garment |
| JP2007224431A (en) * | 2006-02-21 | 2007-09-06 | Teijin Techno Products Ltd | Netlike knitted or woven fabric for civil engineering |
| JP2009263815A (en) * | 2008-04-25 | 2009-11-12 | Teijin Techno Products Ltd | Heat-resistant woven fabric and heat-resistant protective clothing using the same |
| US8819866B2 (en) * | 2012-03-30 | 2014-09-02 | International Textile Group, Inc. | Flame resistant fabric and garments made therefrom |
| GB201312229D0 (en) * | 2013-07-08 | 2013-08-21 | A W Hainsworth & Sons Ltd | Improved fire resistant textile material |
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