JP4846739B2 - Heat-resistant and flame-retardant work clothes and fabrics used therefor - Google Patents
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- 239000003063 flame retardant Substances 0.000 title claims description 45
- 239000004744 fabric Substances 0.000 title claims description 41
- 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 title claims description 35
- 239000000835 fiber Substances 0.000 claims description 20
- 239000002759 woven fabric Substances 0.000 claims description 20
- 229910052782 aluminium Inorganic materials 0.000 claims description 18
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 18
- 229920000297 Rayon Polymers 0.000 claims description 12
- 229920000742 Cotton Polymers 0.000 claims description 10
- 239000002964 rayon Substances 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 9
- 238000003763 carbonization Methods 0.000 claims description 5
- 239000000428 dust Substances 0.000 claims description 5
- 238000009958 sewing Methods 0.000 claims description 4
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 claims description 3
- 239000011347 resin Substances 0.000 claims description 3
- 229920005989 resin Polymers 0.000 claims description 3
- 230000005611 electricity Effects 0.000 claims description 2
- 230000003068 static effect Effects 0.000 claims description 2
- 210000002268 wool Anatomy 0.000 description 16
- 229910052751 metal Inorganic materials 0.000 description 11
- 239000002184 metal Substances 0.000 description 11
- 238000002485 combustion reaction Methods 0.000 description 10
- 238000010521 absorption reaction Methods 0.000 description 5
- 230000000052 comparative effect Effects 0.000 description 5
- 230000035900 sweating Effects 0.000 description 5
- 238000005406 washing Methods 0.000 description 5
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 238000009987 spinning Methods 0.000 description 4
- 238000003466 welding Methods 0.000 description 4
- 229920006231 aramid fiber Polymers 0.000 description 3
- 238000005266 casting Methods 0.000 description 3
- 238000007496 glass forming Methods 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- 208000035824 paresthesia Diseases 0.000 description 3
- -1 polyphenylene sulfite Polymers 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- 210000004243 sweat Anatomy 0.000 description 3
- 241000196324 Embryophyta Species 0.000 description 2
- 240000009125 Myrtillocactus geometrizans Species 0.000 description 2
- 239000004642 Polyimide Substances 0.000 description 2
- 229910021529 ammonia Inorganic materials 0.000 description 2
- 239000004760 aramid Substances 0.000 description 2
- 229920002678 cellulose Polymers 0.000 description 2
- 239000001913 cellulose Substances 0.000 description 2
- 238000004043 dyeing Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005868 electrolysis reaction Methods 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 229920001230 polyarylate Polymers 0.000 description 2
- 229920001721 polyimide Polymers 0.000 description 2
- 230000001846 repelling effect Effects 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 239000004753 textile Substances 0.000 description 2
- VZSRBBMJRBPUNF-UHFFFAOYSA-N 2-(2,3-dihydro-1H-inden-2-ylamino)-N-[3-oxo-3-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)propyl]pyrimidine-5-carboxamide Chemical compound C1C(CC2=CC=CC=C12)NC1=NC=C(C=N1)C(=O)NCCC(N1CC2=C(CC1)NN=N2)=O VZSRBBMJRBPUNF-UHFFFAOYSA-N 0.000 description 1
- 206010006803 Burns third degree Diseases 0.000 description 1
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- OWYWGLHRNBIFJP-UHFFFAOYSA-N Ipazine Chemical compound CCN(CC)C1=NC(Cl)=NC(NC(C)C)=N1 OWYWGLHRNBIFJP-UHFFFAOYSA-N 0.000 description 1
- 239000004952 Polyamide Substances 0.000 description 1
- 238000003723 Smelting Methods 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 229920003235 aromatic polyamide Polymers 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 210000000481 breast Anatomy 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 210000000038 chest Anatomy 0.000 description 1
- 238000005660 chlorination reaction Methods 0.000 description 1
- 239000013256 coordination polymer Substances 0.000 description 1
- 238000004512 die casting Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000003203 everyday effect Effects 0.000 description 1
- 239000012210 heat-resistant fiber Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 230000037303 wrinkles Effects 0.000 description 1
- 229910052726 zirconium Inorganic materials 0.000 description 1
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- Professional, Industrial, Or Sporting Protective Garments (AREA)
- Woven Fabrics (AREA)
Description
本発明は、溶融金属の炉前作業、溶接作業、ガラス成形作業等の高温高熱作業に好適な耐熱難燃作業服及びこれに使用する織物に関する。 The present invention relates to a heat-resistant and flame-retardant work clothes suitable for high-temperature and high-heat work such as molten metal pre-furnace work, welding work, and glass forming work, and a woven fabric used therefor.
アルミニウム電解・鋳造工場、製鉄溶鉱炉工場等の溶融金属の炉前作業、溶接作業、ガラス成形作業等は、高温高熱の過酷な環境条件下における作業が必要である。近年、ロボット化が進み、作業員の労働を出来る限り少なくする方向に進んでいるが、全部をロボット化出来ない場合もあり、いまだに作業員に頼らざるを得ないのが現状である。このような過酷な環境下における作業服は、耐熱性、難燃性、洗濯可能等の条件が必要であるが、今まであまり改良がなされてこなかった。 Pre-furnace work, welding work, glass forming work, etc. of molten metal in aluminum electrolysis / casting factory, iron smelting furnace factory, etc. require work under severe environmental conditions of high temperature and high heat. In recent years, robotization has progressed and the labor of workers has been reduced as much as possible. However, there are cases where it is not possible to robotize all of them, and it is still necessary to rely on workers. Work clothes in such a harsh environment require conditions such as heat resistance, flame retardancy, and washability, but have not been improved so far.
従来から、アラミド繊維、ポリイミド繊維、ポリアリレート繊維等が耐熱性や耐燃焼性が高い素材として提案されている（特許文献１〜３）。また、ポリフェニレンサルファイト繊維を使用した耐熱服も提案されている（特許文献４）。また、アラミド短繊維と難燃性セルロース短繊維とポリアミド単繊維を混紡した難燃布帛も提案されている（特許文献５）。 Conventionally, aramid fiber, polyimide fiber, polyarylate fiber, and the like have been proposed as materials having high heat resistance and combustion resistance (Patent Documents 1 to 3). A heat-resistant clothing using polyphenylene sulfite fiber has also been proposed (Patent Document 4). In addition, a flame retardant fabric in which aramid short fibers, flame retardant cellulose short fibers, and polyamide single fibers are blended has been proposed (Patent Document 5).
しかし、特許文献１〜５で提案されているアラミド繊維、ポリイミド繊維、ポリアリレート繊維、ポリフェニレンサルファイト繊維等は、いずれも紫外線で分解されやすく、作業服を洗濯して太陽光線にさらすと分解してしまうという問題がある。さらに、溶融した金属をあびると作業服の表面に付着しやすいという問題がある。このため、これらの耐熱性繊維を使用せずに、木綿１００％使いの厚手のデニム（ジーンズ）等の織物を耐熱作業服に使用しているのが現状である。ところが、木綿１００％使いの織物では、耐熱性も難燃性も好ましいものではなく、発汗して濡れた時には着心地がきわめて悪いという問題もある。
本発明は、前記従来の問題を解決するため、耐熱性と難燃性が高く、溶融金属が付着してもはじき、発汗して濡れても着心地は良く、洗濯性も良好で、かつコストの安い耐熱難燃作業服及びこれに使用する織物を提供する。 In order to solve the above-mentioned conventional problems, the present invention has high heat resistance and flame retardancy, is repelled even when molten metal adheres, is comfortable to sweat and gets wet, has good washability, and costs A cheap heat-resistant and flame-retardant work clothes and a fabric used therefor.
本発明は、下記の混紡糸
Ａ．ウール：１０〜４５重量％の範囲
Ｂ．難燃レーヨン：１５〜４５重量％の範囲
Ｃ．難燃アクリル：３５〜５０重量％の範囲であって、
合計が１００重量％である混紡糸を経糸と緯糸に含む織物を縫製した耐熱難燃作業服である。
The present invention relates to the following blended yarn A.1. Wool: range of 10 to 45% by weight. Flame retardant rayon: 15-45 wt% range C.I. Flame-retardant acrylic: a range of 35 to 50 wt%,
This is a heat-resistant and flame-retardant work clothes in which a fabric containing a blended yarn of 100% by weight in warp and weft is sewn.
本発明の織物は、前記の耐熱難燃作業服に使用するための織物である。 The fabric of the present invention is a fabric for use in the heat-resistant and flame-retardant work clothes.
本発明は、前記混紡糸を経糸と緯糸に含む織物としたこと、及びこの織物から縫製して耐熱難燃作業服としたことにより、耐熱性と難燃性が高く、溶融金属が付着してもはじき、発汗して濡れても着心地は良く、洗濯性も良好で、かつコストの安い耐熱難燃作業服とすることができる。すなわち、織物を構成する繊維はすべて特定の非溶融繊維であり、特定の範囲とすることにより、炉前作業に好適な作業服とすることができる。 In the present invention, the blended yarn is made into a woven fabric containing warps and wefts, and the heat-resistant and flame-retardant work clothes are sewn from the woven fabric. It can be made into heat-resistant and flame-retardant work clothes that are comfortable to wear even when sweating, sweating, and getting wet, have good washability, and are inexpensive. That is, all the fibers constituting the woven fabric are specific non-molten fibers, and by setting the specific range, work clothes suitable for the pre-furnace work can be obtained.
本発明において、難燃性とは、炎に触れている間は燃えるか又は徐燃するが、炎を遠ざけると消える性質をいう。耐熱性とは、アルミニウム電解・鋳造工場、製鉄溶鉱炉工場等の炉前作業、溶接作業等で溶融金属の飛沫がふりかかっても、大きな穴が開いたり燃焼したりせず、人体を保護できる性質をいう。 In the present invention, the flame retardancy means a property that burns or gradually burns while touching the flame, but disappears when the flame is moved away. Heat resistance is a property that protects the human body without causing large holes or burning even when molten metal splashes during pre-furnace work or welding work at aluminum electrolysis / casting plants, iron blast furnace plants, etc. Say.
本発明は、主成分としてウール：１０〜４５重量％、難燃レーヨン：１５〜４５重量％、難燃アクリル：３５〜５０重量％からなる３成分系の混紡糸を使用する。
Ａ．ウール：ウールはそのまま使用しても良いし、染色して使用しても良い。あるいは表面のスケールを除去して防縮加工する等の改質したものを使用しても良い。そのまま使用したり染色して使用するウールを「非改質ウール」という。スケールの除去は防縮加工としてそれ自体は一般的であり、塩素化処理により行う。このような非改質ウール又は改質ウールを使用するのは、吸湿性を向上し、輻射熱を遮断し、高温で過酷な環境下における作業で発汗して濡れても着心地を良好に保てること、及び溶融金属の飛沫がふりかかっても、はじいてしまい、燃焼したりせず、人体を保護できる耐熱性を発揮できるからである。ウールが１０重量％以上４５重量％であると前記の効果が高い。
The present invention uses a three-component blended yarn composed of wool: 10 to 45% by weight, flame retardant rayon: 15 to 45% by weight, and flame retardant acrylic: 35 to 50% by weight as main components.
A. Wool: Wool may be used as it is, or may be used after dyeing. Or you may use the modified thing, such as removing the scale of the surface and shrink-proofing. Wool that is used as it is or dyed is called "unmodified wool". The removal of the scale is generally a shrink-proofing process itself, and is performed by chlorination treatment. The use of such non-modified wool or modified wool improves hygroscopicity, blocks radiant heat, and maintains good comfort even when sweating and getting wet during work in harsh environments at high temperatures. This is because even if the molten metal splashes, it will be repelled and not burned, and can exhibit heat resistance capable of protecting the human body. The said effect is high in wool being 10 to 45 weight%.
ウールの難燃加工として一般的に知られている国際羊毛事務局が開発したザプロ加工（チタンとジルコニウム塩による処理）したものであっても前記の効果は不変である。
Ｂ．難燃レーヨン：難燃レーヨンとしては、プロバン加工（オルブライト＆ウイルソン社が開発したテトラキスヒドロキシメチルホスホニウム塩を用いたアンモニアキュアリング加工）、チバ・ガイギー社が開発したピロパテックスＣＰ加工（Ｎ−メチロールジメチルホスノプロピオンアミド加工）、オーストリア国レンチング社の商品名“ビスコースＦＲ”等がある。難燃レーヨンは１５重量％以上４５重量％以下の範囲であると、吸湿性及び吸汗性が高い。
Ｃ．難燃アクリル：難燃アクリルとしては、カネカ社製商品名“カネカロン”（モダクリル）、カネボウ・丸竹コーポレーション社製商品名“ルフネン”等がある。難燃アクリルは３５重量％以上５０重量％以下の範囲で使用する。この範囲であると難燃性、耐熱性、耐洗濯性が高く、コストを安くすることができる。
Even if it is made by Zapro processing (treatment with titanium and zirconium salts) developed by the International Wool Secretariat, which is generally known as a flame retardant processing of wool, the above-mentioned effects are unchanged.
B. Flame retardant rayon: Flame retardant rayon includes Provan processing (ammonia curing processing using tetrakishydroxymethylphosphonium salt developed by Albright & Wilson), Pyropatex CP processing developed by Ciba Geigy (N-methylol dimethyl) Phosnopropionamide processing) and the product name “Viscose FR” of Lenzing, Austria. When the flame retardant rayon is in the range of 15% by weight or more and 45% by weight or less, the moisture absorption and sweat absorption are high.
C. Flame retardant acrylic: Examples of the flame retardant acrylic include Kaneka's trade name “Kanekaron” (Modacril) and Kanebo Marutake Corporation's trade name “Rufenen”. Flame retardant acrylic is used in the range of 35 wt% to 50 wt%. Within this range, flame retardancy, heat resistance, and washing resistance are high, and costs can be reduced.
混紡糸とするには、常法の紡績法に従い、例えば粗紡、連条工程又はそれ以前の工程で混紡して紡績糸とする。この紡績糸は単糸で使用しても良いし、複数本撚り合わせても良い。これらの糸を経糸と緯糸に使用して織物とする。織物組織は、平織(plain weave)、斜文織(綾織,twill weave)、朱子織(satin weave)など任意の織組織を使用できる。この織物から作業服に縫製するのも常法の縫製手段を使用できる。 In order to obtain a blended yarn, according to a conventional spinning method, for example, a spun yarn is obtained by blending in a rough spinning, a continuous strip process, or a process before that. The spun yarn may be used as a single yarn, or a plurality of yarns may be twisted together. These yarns are used as warps and wefts to form a woven fabric. As the woven structure, any woven structure such as plain weave, twill weave, satin weave and the like can be used. Conventional sewing means can be used to sew this fabric from the work clothes.
前記織物は、ＪＩＳ Ｌ１０９１Ａ−４法で規定される、垂直に配置した織物の下端にブンゼンバーナーで１２秒間接炎したときの炭化長が１７ｃｍ以下、炎を外したときの残炎時間が１秒以下、残塵時間が２秒以下であることが好ましい。前記性質であれば、耐熱性及び難燃性がさらに好ましい。 The woven fabric has a carbonization length of 17 cm or less when indirect flame is fired for 12 seconds with a Bunsen burner at the lower end of a vertically arranged fabric defined by JIS L1091A-4 method, and the afterflame time when the flame is removed is 1 second. Hereinafter, the residual dust time is preferably 2 seconds or less. If it is the said property, heat resistance and a flame retardance are further more preferable.
また、前記織物は、塩化ビニル樹脂シートからなる擬似皮膚の表面上に重ね、４５°の傾斜台に配置し、２４ｃｍの高さから温度８００℃で溶融したアルミニウムを９０ｇ落下
させたとき、溶融アルミニウムをはじく性質であることが好ましい。前記範囲であれば、溶融金属の飛沫がふりかかっても、織物表面からはじいてしまい、人体に対する安全性をさらに高くすることができる。
The woven fabric is superimposed on the surface of the artificial skin made of a vinyl chloride resin sheet, placed on a 45 ° tilt table, and 90 g of aluminum melted at a temperature of 800 ° C. from a height of 24 cm is dropped. It is preferable that it has a property of repelling. If it is the said range, even if the molten metal splashes, it will repel from the textile surface, and the safety | security with respect to a human body can be made still higher.
また、前記織物の単位あたりの重量（目付）は、１５０〜３００ｇ／ｍ2の範囲であることが好ましい。前記範囲であれば、さらに軽くて着心地の良い作業服とすることができる。さらに好ましくは１６０〜２７０ｇ／ｍ2の範囲、とくに好ましくは１８０〜２５０ｇ／ｍ2の範囲である。 Moreover, it is preferable that the weight (unit weight) per unit of the said textile fabric is the range of 150-300 g / m < 2 >. If it is the said range, it can be set as lighter and more comfortable work clothes. More preferably in the range of 160~270g / m 2, particularly preferably from 180~250g / m 2.
前記作業服の上衣前身頃又は下衣前面は、前記織物を二重にして縫製するのが好ましい。このようにするとさらに輻射熱を遮蔽し、安全性を高めることができる。 It is preferable that the upper body of the upper garment or the front of the lower garment is sewn with the fabric doubled. If it does in this way, radiation heat can be shielded further and safety can be improved.
また、前記作業服の襟内側には、綿布を縫いつけてもよい。一般的にウールは直径が２０μｍ以下のものを使用すればチクチク感はないが、コストを安価にするため、直径２０μｍ以上のものを使用すると、人によってはチクチク感を感ずる人もいるので、襟内側には、綿布を縫いつけて着心地を良好にする。 Further, cotton cloth may be sewn on the inside of the collar of the work clothes. Generally, if you use wool with a diameter of 20 μm or less, you will not feel a tingling sensation, but in order to reduce the cost, some people may feel a tingling sensation when using a thing with a diameter of 20 μm or more. On the inside, a cotton cloth is sewn to improve comfort.
本発明の織物には、静電気を除去するための導電性繊維、例えばＫＢセーレン社製“ベルトロン”、炭素繊維、金属繊維等を０．１〜１重量％の範囲加えてもよい。 In the woven fabric of the present invention, conductive fibers for removing static electricity, for example, “Beltron” manufactured by KB Seiren, carbon fibers, metal fibers, etc. may be added in the range of 0.1 to 1% by weight.
以上のとおり、本発明は、Ａ．ウール：１０〜４５重量％、Ｂ．難燃レーヨン：１５〜４５重量％、Ｃ．難燃アクリル：３５〜５０重量％からなる混紡糸を経糸と緯糸に含む織物、及びこの織物を縫製して耐熱難燃作業服としたことにより、耐熱性と難燃性が高く、溶融金属が付着してもはじき、発汗して濡れても着心地は良く、洗濯性も良好で、かつコストの安い耐熱難燃作業服とすることができる。
As described above, the present invention provides A.1. Wool: 10 to 45% by weight; Flame retardant rayon: 15-45% by weight, C.I. Flame-retardant acrylic: fabric comprising blended yarns comprising 35 to 50 wt% in the warp and weft, and by this the fabrics and sewing heat flame retardant work clothes, high heat resistance and flame retardancy, molten metal Even if it adheres and sweats and gets wet, it is comfortable to wear, has good washability, and can be made into heat-resistant and flame-retardant work clothes that are inexpensive.
以下、実施例を用いてさらに具体的に説明する。本発明の実施例、比較例における測定方法は次のとおりとした。
（１）燃焼試験
ＪＩＳ Ｌ１０９１Ａ−４法で規定される、垂直に配置した織物試料の下端にブンゼンバーナーで１２秒間接炎したときの炭化長、炎を外したときの残炎時間、及び残塵時間を測定した。
（２）溶融アルミニウム落下試験
厚さ０．２５ｍｍの塩化ビニル樹脂シートからなる擬似皮膚の表面上に織物試料を重ね、４５°の傾斜台に配置し、２４ｃｍの高さから温度８００℃で溶融したアルミニウムを９０ｇ落下させ、織物表面の状態を観察した。判定は次のようにした。
グレード１：疑似皮膚は全く損傷しない（最高の防護）。
グレード２：疑似皮膚の０．０１ｍ2以下の部分がわずかに損傷する（第１度火傷）。
グレード３：疑似皮膚の０．０１ｍ2以上の部分がわずかに損傷する（第１度火傷）。
グレード４：疑似皮膚の０．０１ｍ2以下の部分が損傷する（第２度火傷）。
グレード５：疑似皮膚の０．０１ｍ2以上の部分が損傷する（第２度火傷）。
グレード６：疑似皮膚の０．０１ｍ2以下の部分がひどく損傷する（第３度火傷）。
グレード７：疑似皮膚の０．０１ｍ2以上の部分がひどく損傷する（第３度火傷）。
Hereinafter, more specific description will be made using examples. The measurement methods in Examples and Comparative Examples of the present invention were as follows.
(1) Combustion test Defined in JIS L1091A-4 method, char length when indirect flame is burned with Bunsen burner at the lower end of a vertically arranged fabric sample for 12 seconds, afterflame time when flame is removed, and dust Time was measured.
(2) Molten aluminum drop test The fabric sample was layered on the surface of the artificial skin made of a vinyl chloride resin sheet having a thickness of 0.25 mm, placed on a 45 ° tilt table, and melted at a temperature of 800 ° C. from a height of 24 cm. 90 g of aluminum was dropped, and the state of the fabric surface was observed. The judgment was as follows.
Grade 1: The simulated skin is not damaged at all (best protection).
Grade 2: A portion of the pseudo skin of 0.01 m 2 or less is slightly damaged (first degree burn).
Grade 3: A portion of the pseudo skin of 0.01 m 2 or more is slightly damaged (first degree burn).
Grade 4: A portion of 0.01 m 2 or less of the artificial skin is damaged (second-degree burn).
Grade 5: A portion of 0.01 m 2 or more of the artificial skin is damaged (second degree burn).
Grade 6: The area of 0.01 m 2 or less of the artificial skin is severely damaged (third-degree burn).
Grade 7: The part of the artificial skin over 0.01 m 2 is severely damaged (third-degree burn).
（実施例１）
１．原料
Ａ．ウール：オーストラリア産、メリノ種の非改質ウール（平均繊維長：７５ｍｍ）を２０重量％使用した。
Ｂ．難燃レーヨン：オーストリア国レンチング社製商品名“ビスコースＦＲ”（平均繊維長：７５ｍｍ、平均繊度：３．３ｄｔｅｘ）を４０重量％使用した。
Ｃ．難燃アクリル：カネカ社製商品名“カネカロン”（モダクリル）（平均繊維長：１００ｍｍ、平均繊度：３．３ｄｔｅｘ）を４０重量％使用した。
２．混紡糸の作製
前記原料を個別に梳毛カードに投入して開繊を行い、繊維ウェブとしてからスライバー混によりブレンドし、前紡工程、精紡工程を経て、経糸としてメートル番手４０番、双糸Ｓ撚６２０回の紡績糸を作製した。また、緯糸として同２０番単糸Ｚ撚４４０回の紡績糸を作製した。
３．織物の作製と作業服の縫製
前記紡績糸を経糸と緯糸に使用し、平組織の織物を作製した。その後、ウールと難燃アクリルを一浴染めで青色に染色し（難燃レーヨンは白残し）、全体して青色に見える織物を作製した。この織物の目付けは２２０ｇ／ｍ2であった。この織物を縫製して図１〜２に示す耐熱難燃作業服を作製した。図１は前記作業服の上衣（上着）１、図２は前記作業服の下衣（ズボン）１０の正面図である。図１に示す上衣（上着）１は前身頃２と袖３、胸ポケット４、筆記用具収納部５、襟６を主要部としている。前身頃２は単一の織物でも良いが、輻射熱をさらに遮断するため２重に織物を重ねて縫製した。襟６は、外側襟６ａと、内側には内襟６ｂ，６ｃを縫い付け、内襟６ｂ，６ｃは綿布とした。発汗したときのウールのチクチク感を解消するためである。上衣（上着）１の１枚の重量は４７０ｇであった。図２に示す下衣（ズボン）１０は、下衣の上部前面１１は輻射熱をさらに遮断するため２重に織物を重ねて縫製した。裾部１２は単一織物使いとした。１３はベルト通しである。下衣（ズボン）１０の１枚の重量は４７０ｇであった。
４．燃焼試験
前記織物を前記の燃焼試験をしたところ次の結果が得られた。
（１）燃焼試験
炭化長 １４．７ｃｍ
残炎時間 ０秒
残塵時間 １秒
（２）溶融アルミニウム落下試験
織物表面の０．０１ｍ2以下に焦げた部分が認められるが、溶融アルミニウムは付着せずはじくためグレード１の最高の防護であると判断した。
５．着用試験
溶融アルミニウムを鋳造するアルミダイキャスト炉前作業をする作業員１０名に１月間着用試験してもらった。その結果１０名とも、従来から使用している木綿１００％使い、目付２７５ｇ／ｍ2のデニム（ジーンズ）織物の耐熱作業服に比較して、吸湿性が高く、輻射熱の遮断効果も高く、発汗して濡れてもべたつかず、着心地が良好であるとの評価が得られた。
６．洗濯試験
前記のように作業員１０名の１月間着用試験の際に、着用後、その都度毎日家庭洗濯を繰り返した。その結果、従来から使用している木綿１００％使い、目付２７５ｇ／ｍ2のデニム（ジーンズ）織物の耐熱作業服に比較して、乾きやすく、シワにもなりにくく、洗濯収縮（本実施例品の収縮率：３．７％、従来品の収縮率：５．５％）も少なかった。
Example 1
1. Raw material A. Wool: An Australian-made, merino-type unmodified wool (average fiber length: 75 mm) was used in an amount of 20% by weight.
B. Flame retardant rayon: 40% by weight of the product name “Viscose FR” (average fiber length: 75 mm, average fineness: 3.3 dtex) manufactured by Lenzing, Austria.
C. Flame retardant acrylic: 40% by weight of Kaneka Corporation trade name “Kanekaron” (Modacryl) (average fiber length: 100 mm, average fineness: 3.3 dtex) was used.
2. Preparation of blended yarn The raw materials are individually put into a carded card, opened, blended by sliver blending as a fiber web, passed through a pre-spinning process and a spinning process. A spun yarn of 620 twists was produced. Further, a spun yarn of 440 times of the No. 20 single yarn Z twist was produced as the weft.
3. Fabrication of fabric and sewing of work clothes The spun yarn was used as warp and weft to fabricate a plain fabric. Thereafter, wool and flame retardant acrylic were dyed blue by one bath dyeing (the flame retardant rayon was left white), and a fabric that looked blue as a whole was produced. The fabric weight was 220 g / m 2 . The woven fabric was sewn to produce heat-resistant and flame-retardant work clothes shown in FIGS. 1 is a front view of the upper garment (upper) 1 of the work clothes, and FIG. 2 is a front view of the lower garment (trousers) 10 of the work clothes. An upper garment (outerwear) 1 shown in FIG. 1 has a front body 2 and sleeves 3, a
4). Combustion test When the fabric was subjected to the combustion test, the following results were obtained.
(1) Combustion test Carbonization length 14.7cm
After flame time 0 Byozanchiri time of 1 second (2) 0.01 m 2 or less in burnt portion of the molten aluminum drop test fabric surface is observed, molten aluminum is the best protection grade 1 for repelling not adhere It was judged.
5). Wear test Ten workers who were working in front of an aluminum die-casting furnace for casting molten aluminum were asked to do a wear test for one month. Both result ten, use 100% cotton that has been used, as compared to the heat workwear basis weight 275 g / m 2 of denim (jeans) fabric, highly hygroscopic, radiant heat blocking effect of the high, sweating Even when wet, it was not sticky, and it was evaluated that it was comfortable to wear.
6). Laundry test As described above, during the monthly wear test of 10 workers, household washing was repeated every day after wearing. As a result, compared to the conventional heat-resistant work clothes made of 100% cotton and using a denim (jeans) fabric with a basis weight of 275 g / m 2 , it is easy to dry and not wrinkle. The shrinkage ratio was 3.7% and the shrinkage ratio of the conventional product was 5.5%.
（比較例１）
従来耐熱作業服に使用している木綿１００％使い、目付２７５ｇ／ｍ2のデニム（ジーンズ）織物（難燃加工なし）について、燃焼試験をしたところ次の結果が得られた。
（１）燃焼試験
炭化長 ３０ｃｍ以上
残炎時間 ６０秒以上
残塵時間 ６０秒以上
このような燃焼挙動を「全焼」という。
（２）溶融アルミニウム落下試験
前記の「全焼」を回避するため、この織物に、セルロースの難燃加工であるプロバン加工（オルブライト＆ウイルソン社が開発したテトラキスヒドロキシメチルホスホニウム塩を用いたアンモニアキュアリング加工）をして溶融アルミニウム落下試験をしたところ、溶融アルミニウムは織物表面に付着してしまい、織物は焦げ、擬似皮膚に至るまで溶融してしまい、人体であればグレード６の第３度火傷になると判断した。
(Comparative Example 1)
The following results were obtained when a flammability test was performed on denim (jeans) woven fabric (no flame retardant treatment) using 100% cotton conventionally used in heat-resistant work clothes and having a basis weight of 275 g / m 2 .
(1) Combustion test Carbonization length 30 cm or more After flame time 60 seconds or more Dust time 60 seconds or more Such combustion behavior is referred to as “burning”.
(2) Molten aluminum drop test In order to avoid the above-mentioned “burning”, this fabric is treated with a provan which is a flame retardant process of cellulose (ammonia curing process using tetrakishydroxymethylphosphonium salt developed by Albright & Wilson) ) And a molten aluminum drop test was performed, the molten aluminum adhered to the fabric surface, the fabric burned and melted to the simulated skin, and if it was a human body, it would be grade 6 third-degree burns It was judged.
（比較例２）
耐熱性が高いといわれているアラミド繊維１００％使い、目付２３５ｇ／ｍ2の平織り組織の織物について、燃焼試験をしたところ次の結果が得られた。
（１）燃焼試験
炭化長 ５ｃｍ
残炎時間 １秒
残塵時間 ２秒
（２）溶融アルミニウム落下試験
溶融アルミニウムは織物表面に付着してしまい、織物は焦げ、擬似皮膚に至るまで溶融してしまい、人体であればグレード７の第３度火傷になると判断した。
(Comparative Example 2)
When a woven fabric having a plain weave structure with a basis weight of 235 g / m 2 using 100% aramid fiber, which is said to have high heat resistance, was subjected to a combustion test, the following results were obtained.
(1) Combustion test Carbonization length 5cm
Residual flame time 1 second Residual dust time 2 seconds (2) Molten aluminum drop test Molten aluminum adheres to the surface of the fabric, the fabric burns and melts to the simulated skin. Judged to be burned 3 times.
（実施例２）
実施例１と繊維原料の混率を変えた以外は同様な条件とした。条件と結果を表１にまとめて示す。表１において、判断基準は次のとおりとした。
（１）溶融アルミニウム落下試験は、前記のとおりグレード１〜７で判断した。
（２）洗濯試験
水平ドラム型洗濯機で洗濯し、タンブル乾燥するＩＳＯ ６３３０，２Ａ−Ｅに従い、これを５回繰り返した後、収縮率を測定した。
（３）吸放湿性（△ＭＲ）
衣服を着用してから運動したときの衣服内のムレの吸収度合いを示す指数を△ＭＲといい、この数値が高いほど衣服内がムレにくく、快適な着用感が得られる。乾燥状態から温度２０℃、相対湿度６５％ＲＨ（着用前の洋服ダンス内の衣服を想定）に２４時間試料を放置したときの吸湿率（％）をＭＲ1、絶乾状態から温度３０℃、相対湿度９０％ＲＨ雰囲気下（運動状態の衣服内を想定）に２４時間放置したときの吸湿率（％）をＭＲ2として、その差が△ＭＲである。
△ＭＲ＝ＭＲ2−ＭＲ1
(Example 2)
The same conditions were used except that the mixing ratio of Example 1 and the fiber raw material was changed. The conditions and results are summarized in Table 1. In Table 1, the judgment criteria were as follows.
(1) The molten aluminum drop test was judged by grades 1 to 7 as described above.
(2) Washing test According to ISO 6330, 2A-E, which was washed with a horizontal drum type washing machine and tumble dried, this was repeated 5 times, and then the shrinkage rate was measured.
(3) Hygroscopicity (△ MR)
An index indicating the degree of absorption of stuffiness in the garment when exercising after wearing the garment is referred to as ΔMR, and the higher this value, the less stuffy the inside of the garment and the more comfortable wearing feeling can be obtained. The moisture absorption rate (%) when the sample is left for 24 hours at a temperature of 20 ° C from a dry state and a relative humidity of 65% RH (assuming clothes in the clothes dance before wearing) is MR 1 . relative humidity 90% RH atmosphere moisture absorption when left for 24 hours (assuming the clothes motion state) (%) as a MR 2, the difference is △ MR.
ΔMR = MR 2 −MR 1
（比較例３）
木綿、ウール、難燃レーヨン、難燃アクリルの単体（各繊維１００重量％）の織物とした以外は実施例１と同様とした。得られた織物を使用して、実施例２と同一の燃焼試験、溶融アルミニウム落下試験、洗濯収縮率の各測定をした。結果を表２に示す。
(Comparative Example 3)
Example 1 was the same as that of Example 1 except that the woven fabric was made of a simple substance (100% by weight of each fiber) of cotton, wool, flame retardant rayon, and flame retardant acrylic. Using the obtained woven fabric, the same combustion test, molten aluminum drop test, and washing shrinkage rate as in Example 2 were measured. The results are shown in Table 2.
以上の実施例、比較例から本発明の織物及びこれを用いた作業服は、耐熱性と難燃性が高く、溶融金属が付着してもはじき、発汗して濡れても着心地は良く、洗濯性も良好あることが確認できた。もちろん、コスト的にも安価に製造でき優れていた。 From the above examples and comparative examples, the fabric of the present invention and work clothes using the same have high heat resistance and flame resistance, repel even when molten metal adheres, and is comfortable to wear even if sweated and wet. It was confirmed that the washability was also good. Of course, it was excellent in that it could be manufactured at low cost.
［産業上の利用分野］
本発明の耐熱難燃作業服及びこれに使用する織物は、溶融金属の炉前作業、溶接作業、ガラス成形作業等の高温高熱作業に好適である。
[Industrial application fields]
The heat-resistant and flame-retardant work clothes of the present invention and the fabric used therefor are suitable for high-temperature and high-heat work such as pre-furnace work, welding work, and glass forming work for molten metal.
１ 作業服上衣（上着）
２ 前身頃
３ 袖
４ 胸ポケット
５ 筆記用具収納部
６ 襟
６ａ 外側襟
６ｂ，６ｃ 内襟
１０ 作業服下衣（ズボン）
１１ 下衣の上部前面
１２ 裾部
１３ ベルト通し
1 Work clothes top (outerwear)
2 Front body 3
11 Upper front of
Claims (8)
Ａ．ウール：１０〜４５重量％の範囲
Ｂ．難燃レーヨン：１５〜４５重量％の範囲
Ｃ．難燃アクリル：３５〜５０重量％の範囲であって、
合計が１００重量％である混紡糸を経糸と緯糸に含む織物を縫製した耐熱難燃作業服。 The following blended yarn A. Wool: range of 10 to 45% by weight. Flame retardant rayon: 15-45 wt% range C.I. Flame-retardant acrylic: a range of 35 to 50 wt%,
Heat-resistant and flame-retardant work clothes made by sewing fabrics that contain 100% by weight of blended yarn in warp and weft.
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| AU2017281348C1 (en) | 2016-06-23 | 2021-07-01 | Southern Mills, Inc. | Flame resistant fabrics having fibers containing energy absorbing and/or reflecting additives |
| AU2019218103B2 (en) * | 2018-02-08 | 2021-03-11 | Southern Mills, Inc. | Flame resistant fabrics for protection against molten metal splash |
| WO2020168437A1 (en) | 2019-02-22 | 2020-08-27 | Jess Black Inc. | Fire-resistant double-faced fabric of knitted construction |
| KR102610650B1 (en) | 2019-03-28 | 2023-12-05 | 써던 밀즈, 인코포레이티드 | flame retardant fabric |
| EP4053318A4 (en) | 2019-11-01 | 2023-01-04 | Asahi Kasei Advance Corporation | Flame retardant stretch fiber structure, flame retardant stretch woven/knitted fabric, flame retardant stretch core spun yarn, and protective clothing using same |
| AU2022326461A1 (en) | 2021-08-10 | 2024-02-29 | Southern Mills, Inc. | Flame resistant fabrics |
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| JPS5253065A (en) * | 1975-10-28 | 1977-04-28 | Mitsubishi Rayon Co | Fire retardent fabric |
| JPH04214438A (en) * | 1990-08-31 | 1992-08-05 | Kanebo Ltd | Blended woven fabric of acrylic fiber and wool |
| JPH08158201A (en) * | 1994-12-07 | 1996-06-18 | Kanegafuchi Chem Ind Co Ltd | Flame retardant fabric excellent in light fastness |
| JPH08260286A (en) * | 1995-03-23 | 1996-10-08 | Kanebo Ltd | Woven fabric excellent in flame retardance |
| JPH10226955A (en) * | 1997-02-13 | 1998-08-25 | Kanegafuchi Chem Ind Co Ltd | Flame resistant textile having improved shrinkage by washing, and its production |
| DE69906334T2 (en) * | 1998-09-28 | 2004-02-12 | E.I. Du Pont De Nemours And Co., Wilmington | FLAME-RETARDANT FABRIC |
| JP2000129511A (en) * | 1998-10-23 | 2000-05-09 | Midori Anzen Co Ltd | Heat-resistant and voltage enduring protective clothes |
| JP3126957B2 (en) * | 1998-11-06 | 2001-01-22 | 群栄化学工業株式会社 | Woven cloth |
| US20040001978A1 (en) * | 2002-07-01 | 2004-01-01 | Yves Bader | Molten metal resistant fabrics |
| JP2004315993A (en) * | 2003-04-14 | 2004-11-11 | Teijin Techno Products Ltd | Heat-resistant fabric, method for producing the same and heat-resistant protective wear comprising the same |
| US20050208855A1 (en) * | 2004-03-18 | 2005-09-22 | Reiyao Zhu | Modacrylic/cotton/aramid fiber blends for arc and flame protection |
| CA2576769A1 (en) * | 2004-08-06 | 2006-02-16 | Southern Mills, Inc. | High-visibility, flame resistant fabrics and methods for making same |
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