JP2004225175A - Flame-retardant finishing agent for polyester-based synthetic fiber, flame-retardant processing method using the same and flame-retardant polyester-based synthetic fiber - Google Patents
Flame-retardant finishing agent for polyester-based synthetic fiber, flame-retardant processing method using the same and flame-retardant polyester-based synthetic fiber Download PDFInfo
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- JP2004225175A JP2004225175A JP2003011639A JP2003011639A JP2004225175A JP 2004225175 A JP2004225175 A JP 2004225175A JP 2003011639 A JP2003011639 A JP 2003011639A JP 2003011639 A JP2003011639 A JP 2003011639A JP 2004225175 A JP2004225175 A JP 2004225175A
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- 239000003063 flame retardant Substances 0.000 title claims abstract description 97
- 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 abstract description 95
- 229920000728 polyester Polymers 0.000 title claims abstract description 47
- 229920002994 synthetic fiber Polymers 0.000 title claims abstract description 44
- 239000012209 synthetic fiber Substances 0.000 title claims abstract description 43
- 239000003795 chemical substances by application Substances 0.000 title claims abstract description 10
- 238000003672 processing method Methods 0.000 title description 3
- -1 diphosphate compound Chemical class 0.000 claims abstract description 80
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- 235000011180 diphosphates Nutrition 0.000 claims abstract description 30
- XZZNDPSIHUTMOC-UHFFFAOYSA-N triphenyl phosphate Chemical compound C=1C=CC=CC=1OP(OC=1C=CC=CC=1)(=O)OC1=CC=CC=C1 XZZNDPSIHUTMOC-UHFFFAOYSA-N 0.000 claims abstract description 25
- 125000000217 alkyl group Chemical group 0.000 claims abstract description 12
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- 125000004435 hydrogen atom Chemical group [H]* 0.000 claims abstract description 3
- 238000000034 method Methods 0.000 claims description 28
- 238000001179 sorption measurement Methods 0.000 claims description 14
- YSMRWXYRXBRSND-UHFFFAOYSA-N TOTP Chemical compound CC1=CC=CC=C1OP(=O)(OC=1C(=CC=CC=1)C)OC1=CC=CC=C1C YSMRWXYRXBRSND-UHFFFAOYSA-N 0.000 claims description 12
- 239000012757 flame retardant agent Substances 0.000 claims description 6
- 239000003945 anionic surfactant Substances 0.000 claims description 5
- 239000002736 nonionic surfactant Substances 0.000 claims description 5
- 229910019142 PO4 Inorganic materials 0.000 claims description 3
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- 238000002485 combustion reaction Methods 0.000 claims 1
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 19
- 229910052698 phosphorus Inorganic materials 0.000 abstract description 14
- 239000011574 phosphorus Substances 0.000 abstract description 14
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 abstract description 5
- 239000007787 solid Substances 0.000 abstract description 5
- 239000000243 solution Substances 0.000 abstract description 3
- 239000000835 fiber Substances 0.000 description 24
- 239000000975 dye Substances 0.000 description 15
- 239000002759 woven fabric Substances 0.000 description 13
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- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 4
- 235000014113 dietary fatty acids Nutrition 0.000 description 4
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- QQVIHTHCMHWDBS-UHFFFAOYSA-N isophthalic acid Chemical compound OC(=O)C1=CC=CC(C(O)=O)=C1 QQVIHTHCMHWDBS-UHFFFAOYSA-N 0.000 description 4
- 239000004094 surface-active agent Substances 0.000 description 4
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- 238000001035 drying Methods 0.000 description 3
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- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- WNLRTRBMVRJNCN-UHFFFAOYSA-N adipic acid Chemical compound OC(=O)CCCCC(O)=O WNLRTRBMVRJNCN-UHFFFAOYSA-N 0.000 description 2
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- 229910052736 halogen Inorganic materials 0.000 description 2
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 2
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- 229910000029 sodium carbonate Inorganic materials 0.000 description 2
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- 125000004178 (C1-C4) alkyl group Chemical group 0.000 description 1
- 125000004169 (C1-C6) alkyl group Chemical group 0.000 description 1
- DEIGXXQKDWULML-UHFFFAOYSA-N 1,2,5,6,9,10-hexabromocyclododecane Chemical compound BrC1CCC(Br)C(Br)CCC(Br)C(Br)CCC1Br DEIGXXQKDWULML-UHFFFAOYSA-N 0.000 description 1
- REHWHTXBJLTKAX-UHFFFAOYSA-N 2-bromo-1,4-dioxine Chemical compound BrC1=COC=CO1 REHWHTXBJLTKAX-UHFFFAOYSA-N 0.000 description 1
- POAOYUHQDCAZBD-UHFFFAOYSA-N 2-butoxyethanol Chemical compound CCCCOCCO POAOYUHQDCAZBD-UHFFFAOYSA-N 0.000 description 1
- 241001507939 Cormus domestica Species 0.000 description 1
- CYTYCFOTNPOANT-UHFFFAOYSA-N Perchloroethylene Chemical group ClC(Cl)=C(Cl)Cl CYTYCFOTNPOANT-UHFFFAOYSA-N 0.000 description 1
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- 229930006000 Sucrose Natural products 0.000 description 1
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- 239000003963 antioxidant agent Substances 0.000 description 1
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- 125000004432 carbon atom Chemical group C* 0.000 description 1
- 238000003763 carbonization Methods 0.000 description 1
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- 238000005695 dehalogenation reaction Methods 0.000 description 1
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- 238000007865 diluting Methods 0.000 description 1
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- 238000004945 emulsification Methods 0.000 description 1
- 230000001804 emulsifying effect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- RTZKZFJDLAIYFH-UHFFFAOYSA-N ether Substances CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 1
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 1
- 150000004665 fatty acids Chemical class 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 229930182470 glycoside Natural products 0.000 description 1
- 150000002366 halogen compounds Chemical class 0.000 description 1
- 150000002367 halogens Chemical class 0.000 description 1
- 238000009998 heat setting Methods 0.000 description 1
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- 230000001771 impaired effect Effects 0.000 description 1
- 125000000959 isobutyl group Chemical group [H]C([H])([H])C([H])(C([H])([H])[H])C([H])([H])* 0.000 description 1
- 125000001972 isopentyl group Chemical group [H]C([H])([H])C([H])(C([H])([H])[H])C([H])([H])C([H])([H])* 0.000 description 1
- 125000001449 isopropyl group Chemical group [H]C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 125000004108 n-butyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- 125000000740 n-pentyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- 125000001971 neopentyl group Chemical group [H]C([*])([H])C(C([H])([H])[H])(C([H])([H])[H])C([H])([H])[H] 0.000 description 1
- 239000004745 nonwoven fabric Substances 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- FURYAADUZGZUGQ-UHFFFAOYSA-N phenoxybenzene;sulfuric acid Chemical class OS(O)(=O)=O.C=1C=CC=CC=1OC1=CC=CC=C1 FURYAADUZGZUGQ-UHFFFAOYSA-N 0.000 description 1
- 150000003014 phosphoric acid esters Chemical class 0.000 description 1
- 150000003018 phosphorus compounds Chemical class 0.000 description 1
- 229920001707 polybutylene terephthalate Polymers 0.000 description 1
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- 229920001223 polyethylene glycol Polymers 0.000 description 1
- 229920000139 polyethylene terephthalate Polymers 0.000 description 1
- 239000005020 polyethylene terephthalate Substances 0.000 description 1
- 125000001436 propyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000000344 soap Substances 0.000 description 1
- JVBXVOWTABLYPX-UHFFFAOYSA-L sodium dithionite Chemical compound [Na+].[Na+].[O-]S(=O)S([O-])=O JVBXVOWTABLYPX-UHFFFAOYSA-L 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
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- BDHFUVZGWQCTTF-UHFFFAOYSA-M sulfonate Chemical compound [O-]S(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-M 0.000 description 1
- 150000003871 sulfonates Chemical class 0.000 description 1
- 125000000999 tert-butyl group Chemical group [H]C([H])([H])C(*)(C([H])([H])[H])C([H])([H])[H] 0.000 description 1
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- 229950011008 tetrachloroethylene Drugs 0.000 description 1
- STCOOQWBFONSKY-UHFFFAOYSA-N tributyl phosphate Chemical compound CCCCOP(=O)(OCCCC)OCCCC STCOOQWBFONSKY-UHFFFAOYSA-N 0.000 description 1
- DQWPFSLDHJDLRL-UHFFFAOYSA-N triethyl phosphate Chemical compound CCOP(=O)(OCC)OCC DQWPFSLDHJDLRL-UHFFFAOYSA-N 0.000 description 1
- KOWVWXQNQNCRRS-UHFFFAOYSA-N tris(2,4-dimethylphenyl) phosphate Chemical compound CC1=CC(C)=CC=C1OP(=O)(OC=1C(=CC(C)=CC=1)C)OC1=CC=C(C)C=C1C KOWVWXQNQNCRRS-UHFFFAOYSA-N 0.000 description 1
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Landscapes
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
Abstract
Description
【0001】
【発明の属する技術分野】
本発明は、ポリエステル系合成繊維に対し耐久性に優れる難燃性を付与することができる難燃加工剤、それを用いた難燃加工方法、及び、該方法により得られる難燃性ポリエステル系合成繊維に関するものである。
【0002】
【従来の技術】
従来、ポリエステル系合成繊維に対し後加工により難燃性を付与するための難燃加工剤としては、ヘキサブロモシクロドデカンなどのハロゲン系化合物を水に分散または乳化させたものが一般に使用されてきた。しかし、このようなハロゲン系難燃加工剤で処理されたポリエステル系合成繊維は、燃えるとブロムダイオキシンなどの有害なハロゲン化ガスが発生する危惧があり、脱ハロゲン化の要請が高まっている。
【0003】
そこで、有機リン酸エステルのようなリン化合物を使用した難燃加工剤が使用されているが、従来一般に難燃剤として用いられているリン化合物は、化合物中におけるリンの含有率が低く、また、その分子量が低いことからポリエステル系合成繊維の引火点以下で分解、揮散してしまい、そのため十分な難燃性を付与することが困難である。従って、従来はリン化合物を大量に処理する必要があり、その処理量の多さから、風合い低下を招いたり、経時的に繊維表面に染料共々ブリードを生じ、染色、摩擦堅牢度を低下させるという問題があった。
【0004】
このような問題を解決するために、難燃剤として分子量の大きいジホスフェート化合物を使用することも提案されている。例えば、下記特許文献1には、テトラ(2,6−キシリル)−m−フェニレンジホスフェートを溶解又は分散した溶液を難燃加工剤として、これをポリエステル系合成繊維に付与し、その後乾燥することにより難燃加工することが開示されている。
【0005】
また、下記特許文献2には、テトラ(2,6−キシリル)−m−フェニレンジホスフェート等の芳香族ジホスフェート化合物を特定の非イオン界面活性剤で2μm以下の微粒子として水に分散させてなる難燃加工剤が提案されている。
【0006】
【特許文献1】特開平8−41781号公報
【0007】
【特許文献2】特開2001−254268号公報
【0008】
【発明が解決しようとする課題】
上記特許文献1及び2に開示された難燃加工剤はともに、難燃剤としてジホスフェート化合物を単独で使用するものであるが、本発明者において検討したところ、このようなジホスフェート化合物単独では、実際上要求されているような耐久難燃性を得るのが難しいことが判明した。すなわち、上記のジホスフェート化合物は難燃剤としては分子量が大きいため、それ単独ではポリエステル系合成繊維の繊維表面には付着(吸着)しても、繊維内部に吸収される現象を伴う収着は起こりにくい。単に繊維表面に付着した難燃剤は、還元洗浄等のアルカリソーピングや、ドライクリーニングなどの溶剤で脱落してしまうので、十分な耐久難燃性、特にドライクリーニングに対する耐久性を得ることはできない。
【0009】
本発明は、以上の点に鑑みてなされたものであり、風合いや摩擦堅牢度を損なうことなく、リン系難燃剤の収着量を高めて耐久性に優れた難燃性を付与することのできる難燃加工剤、それを用いた難燃加工方法、及び、耐久難燃性に優れるポリエステル系合成繊維を提供することを目的とする。
【0010】
【課題を解決するための手段】
本発明者らは、鋭意研究を重ねた結果、上記したジホスフェート化合物とともに常温固体のトリフェニルホスフェートを併用することにより、ポリエステル系合成繊維に収着するリン系難燃剤の量を増加させることができ、ジホスフェート化合物単独処方では得られなかった洗濯、ドライクリーニングに対する耐久難燃性が得られることを見い出し、本発明を完成するに至った。
【0011】
すなわち、本発明によれば、下記一般式(1)で表されるジホスフェート化合物と、トリフェニルホスフェートとを含有する水分散体または水乳化体からなるポリエステル系合成繊維の難燃加工剤が提供される。
【0012】
【化2】
(式中、R1及びR2は低級アルキル基を示し、同一でも異なっていてもよい。R3及びR4は水素原子又は低級アルキル基を示し、同一でも異なっていてもよい。nは0〜4の整数を示す。)
【0013】
本発明の難燃加工剤においては、上記2成分に加えて、更に常温液体のトリス(アルキルフェニル)モノホスフェート及び/又はトリアルキルモノホスフェートからなるモノホスフェート化合物を含有することが好ましい。
【0014】
本発明によれば、また、上記難燃加工剤を用い、高温吸尽法又はパッドサーモ法によりポリエステル系合成繊維に収着させることを特徴とするポリエステル系合成繊維の難燃加工方法が提供される。
【0015】
本発明によれば、更に、上記方法により難燃化された難燃性ポリエステル系合成繊維が提供される。
【0016】
【発明の実施の形態】
本発明の難燃加工剤において、難燃剤として用いられるジホスフェート化合物は上記一般式(1)で表されるものである。式中のR1、R2、R3及びR4における低級アルキル基は、炭素数1〜5の直鎖又は分岐状のアルキル基であって、例えば、メチル基、エチル基、プロピル基、イソプロピル基、n−ブチル基、イソブチル基、tert−ブチル基、n−ペンチル基、イソペンチル基、tert−ペンチル基、ネオペンチル基が挙げられる。
【0017】
該ジホスフェート化合物の特に好ましい例としては、下記式(2)で表されるテトラ(2,6−キシリル)−m−フェニレンジホスフェート、及び、下記式(3)で表されるテトラ(2,6−キシリル)−p−フェニレンジホスフェートが挙げられ、両者はいずれか一方だけ用いても併用してもよい。
【0018】
【化3】
【0019】
本発明の難燃加工剤において、前記ジホスフェート化合物とともに難燃剤として用いられるトリフェニルホスフェート(TPP)は、下記式(4)で表される。
【0020】
【化4】
【0021】
上記ジホスフェート化合物は、化合物中に含まれるリンの含有率が高く、また分子量も大きいので、優れた難燃効果を発揮するが、分子量が大きいことに起因してポリエステル系合成繊維に対し収着しにくいという欠点がある。そこで、常温固体で収着向上効果のあるTPPを併用することにより、ポリエステル系合成繊維に収着するリン化合物を増加させ、優れた耐久難燃性を付与することができる。また、TPPは低分子量であるが、常温で固体であるためマイグレーションしにくく、従って染料を連れ添って繊維表面にブリードアウトしにくいものであり、そのため染色堅牢度の低下を抑えることができる。なお、収着とは、難燃剤であるリン化合物が繊維表面に吸着するときに繊維内部への吸収を伴う現象をいうが、必ずしもリン化合物の構造全体が繊維内部に入り込んでいる必要はなく、構造の一部、例えば端部のフェニル基のみが繊維内部に入り込んでいるような場合も含まれる。
【0022】
本発明の難燃加工剤においては、前記ジホスフェート化合物及びTPPとともに、難燃剤として常温液体のトリス(アルキルフェニル)モノホスフェート及び/又はトリアルキルモノホスフェートからなるモノホスフェート化合物を併用することが好ましい。ジホスフェート化合物とTPPの2成分のみからなる場合、TPPが常温固体であるため、水分散体もしくは水乳化体である難燃加工剤の製品安定性が低く、特に低温での長期保存により離水や分離が生じやすいという問題がある。そこで、常温液体の上記モノホスフェート化合物を併用することにより、難燃加工剤の製品安定性を向上することができる。
【0023】
該モノホスフェート化合物におけるアルキルフェニル基及びアルキル基は、常温(20℃程度)で液体のモノホスフェート化合物となるものであれば特に限定されない。好ましくは、アルキルフェニル基は、直鎖又は分岐状の炭素数1〜4のアルキル基を1〜3個有するフェニル基であり、また、アルキル基は、炭素数1〜6の直鎖又は分岐状のアルキル基である。なお、ポリエステル系合成繊維との親和性がより高いという観点から、アルキル基よりもアルキルフェニル基の方が好ましい。該モノホスフェート化合物の具体例としては、下記式(5)で表されるトリクレシルホスフェート(TCP)、下記式(6)で表されるトリキシリルホスフェート(TXP)、トリエチルホスフェート、トリブチルホスフェートなどが挙げられる。特に好ましくはTCP、TXPであり、両者はいずれか一方だけ用いても併用してもよい。
【0024】
【化5】
【0025】
難燃剤成分が上記ジホスフェート化合物とTPPとからなる場合、両者の比率は、ジホスフェート化合物が難燃剤成分中40〜80重量%、TPPが難燃剤成分中20〜60重量%であることが好ましい。また、難燃剤成分が上記ジホスフェート化合物とTPPと上記モノホスフェート化合物とからなる場合、これら三者の比率は、ジホスフェート化合物が難燃剤成分中40〜80重量%、TPPが難燃剤成分中19〜59重量%、モノホスフェート化合物が難燃剤成分中1〜20重量%であることが好ましい。
【0026】
本発明の難燃加工剤は、上記ジホスフェート化合物と、TPPと、好ましくは更に上記モノホスフェート化合物とを、界面活性剤の存在下、水中に分散もしくは乳化させて得られる水分散体もしくは水乳化体である。その際の界面活性剤としては、非イオン界面活性剤とアニオン界面活性剤のいずれか一方又は双方組み合わせて用いられる。
【0027】
非イオン界面活性剤の具体例としては、ポリオキシアルキレンアルキルフェニルエーテル、ポリオキシアルキレンアルキルエーテル、ポリオキシアルキレンアルキルエステル、多価アルコール脂肪酸エステルアルキレンオキサイド付加物、高級アルキルアミンアルキレンオキサイド付加物、脂肪酸アミドアルキレンオキサイド付加物、アルキルグリコシド、ショ糖脂肪酸エステル等が挙げられる。好ましくは、ポリオキシエチレンジスチレン化フェニルエーテル、ポリオキシエチレントリスチレン化フェニルエーテルが挙げられる。
【0028】
アニオン界面活性剤の具体例としては、高級アルコール硫酸エステル塩、高級アルキルエーテル硫酸エステル塩、硫酸化脂肪酸エステル等のアルキルサルフェート塩や、アルキルベンゼンスルホン酸塩、アルキルナフタレンスルホン酸塩等のアルキルスルホネート塩、更には、高級アルコールリン酸エステル塩、高級アルコールのアルキレンオキサイド付加物リン酸エステル塩等のアルキルホスフェート塩が挙げられる。また、アルキルアリールスルホネート塩、ポリオキシアルキレンアルキルエーテルサルフェート塩、ポリオキシアルキレンアルキルエステルホスフェート塩、ポリオキシアルキレンアルキルエーテルカルボキシレート塩、ポリカルボン酸塩、ロート油、石油スルホネート、アルキルジフェニルエーテルスルホネート塩等が挙げられる。好ましくは、ポリオキシエチレンジスチレン化もしくはトリスチレン化フェニルエーテル硫酸エステル塩である。
【0029】
このような界面活性剤の使用量は特に限定されないが、通常、難燃剤成分であるリン化合物に対して10〜30重量%の範囲内で用いられる。
【0030】
本発明の難燃加工剤において、難燃剤成分であるリン化合物の含有量は、通常、30〜50重量%の範囲内である。なお、本発明の難燃加工剤においては、分散もしくは乳化状態を安定化させるため、メチルアルコール、エチルアルコール、トルエン、エチレングリコール及びブチルセロソルブ等の有機溶剤を含有してもよい。また、紫外線吸収剤や酸化防止剤等の各種添加剤を配合することもできる。
【0031】
本発明の難燃加工剤は、ポリエステル系合成繊維に対し後加工処理により難燃性を付与するために用いられるものであり、このような後加工処理としては高温吸尽法やパッドサーモ法等が挙げられる。
【0032】
高温吸尽法では、難燃加工剤を添加した処理浴中にポリエステル系合成繊維を浸漬し、高温(通常80℃以上、好ましくは110〜150℃)で所定時間(例えば2〜60分間)処理することにより、難燃剤を繊維に収着させる。好ましくは、難燃剤を染料と同時に繊維に収着させる染色同浴法によることである。すなわち、難燃加工剤を染色浴に添加しておいて、この染色浴中にポリエステル系合成繊維を浸漬して、高温にて吸尽処理を行うことが効率的であり好ましい。
【0033】
また、パッドサーモ法では、難燃加工剤を含む液にポリエステル系合成繊維を浸漬し、所定の付着量になるようにマングル等で絞り、乾熱処理や、過熱スチーム処理などの蒸熱処理によって熱処理を行うことにより、難燃剤を繊維に収着させる。熱処理温度は通常110〜210℃の範囲内である。好ましくは、浸漬後、マングルで絞り、乾燥、熱セットを行うパッド・ドライ・サーモキュア法により処理することである。
【0034】
なお、加工対象となるポリエステル系合成繊維は、ポリエチレンテレフタレートやポリブチレンテレフタレートなどのポリエステル、あるいはこれらにイソフタル酸、イソフタル酸スルホネート、アジピン酸、ポリエチレングリコールなどの第3成分を共重合又はブレンドして得られるポリエステルからなる繊維であり、長繊維でも短繊維でもよい。また、繊維の形態としては、糸、織編物、不織布、ロープなどの繊維製品であれば特に限定されるものではない。また、かかるポリエステル系合成繊維には、本発明の効果を阻害しない範囲で、他の合成繊維、天然繊維、半合成繊維が混合されてもよい。
【0035】
【実施例】
以下に、実施例を挙げて本発明をさらに詳細に説明するが、本発明はこれらの実施例に限定されるものではない。なお、実施例中の「部」は重量部、「%」は重量%を示す。
【0036】
1.評価方法
(1)製品安定性
難燃加工剤を30日間常温放置し、放置後の水分散体もしくは水乳化体の状態を評価した。評価は、離水や分離が発生せず作製直後の状態を保持している場合を「○」、離水や分離が発生し振盪しても元の分散もしくは乳化状態に復元不可能な場合を「×」、軽度な離水や分離で振盪すれば元の分散もしくは乳化状態に復元する場合を「△」とした。
【0037】
(2)難燃性
難燃加工した織物について、加工上りのものと、これを下記条件で水洗濯又はドライクリーニングしたものについて、JIS L 1091 A−1法(ミクロバーナー法)及びJIS L 1091 D法(コイル法)にて難燃性を測定した。ミクロバーナー法では、1分加熱及び着炎3秒後ともに、残炎が3秒以下で、残塵が5秒以下であり、かつ炭化面積が30cm2以下のものを「○」とし、それ以外を「×」とした。コイル法においては接炎回数が3回以上であるものを「○」とし、2回以下であるものを「×」とした。
【0038】
(水洗濯)JIS K 3371に従って、弱アルカリ性第1種洗剤を1g/Lの割合で用い、浴比1:40として、60℃±2℃で15分間水洗濯した後、40℃±2℃で5分間のすすぎを3回行い、遠心脱水を2分間行い、その後、60℃±5℃で熱風乾燥する処理を1回として、これを5回行った。
【0039】
(ドライクリーニング)試料1gにつき、テトラクロロエチレン12.6mL、チャージソープ(ノニオン界面活性剤/アニオン界面活性剤/水=10/10/1(重量比))0.265gを用いて、30℃±2℃で15分間の処理を1回とし、これを5回行った。
【0040】
(3)染色堅牢度
濃色染料で難燃加工した織物について、JIS L 0849 6.1(2)乾燥試験、もしくは6.2(2)湿潤試験に従って測定した。6.1(2)乾燥試験では、試験布及び摩擦用白綿布は、予め標準状態に4時間以上放置する。摩擦試験機II形により、摩擦子の質量を約200gとして、試験片を試験片台上に、摩擦用白綿布を摩擦子の先端にそれぞれ取り付け、2Nの荷重で試験片100mmの間を、毎分30回往復の速度で100回往復摩擦する。6.2(2)湿潤試験では、摩擦用白綿布を水で濡らし約100%湿潤状態にしたものを用いて、6.1(2)乾燥試験と同様に標準状態の試験片を摩擦した後、60℃を越えない温度で乾燥する。摩擦用白綿布の着色判定は、JIS L 0801の9.(染色堅牢度の判定)により、汚染用グレースケールを用いて級判定を行う。
【0041】
2.実施例1,2及び比較例1,2(難燃加工剤)
下記表1に示す配合に従って、実施例1,2及び比較例1,2の各難燃加工剤を調製した。表1において、「PX−200」は大八化学(株)製のテトラ(2,6−キシリル)−m−フェニレンジホスフェート、「TPP」は大八化学(株)製のトリフェニルホスフェート、「TCP」は大八化学(株)製のトリクレシルホスフェートである。また、上記調製に際し、乳化分散させるために使用した界面活性剤は、非イオン界面活性剤が第一工業製薬(株)製の「ノイゲン EA−87」、アニオン界面活性剤が第一工業製薬(株)製の「ハイテノール NF−13」である。
【0042】
【表1】
【0043】
表1に示すように、ジホスフェート化合物とTPPとTCPとを併用した実施例1の難燃加工剤は、TCPを併用しなかった実施例2の難燃加工剤に比べて製品安定性が改善されていた。
【0044】
3.実施例3〜10及び比較例3〜12(染色同浴法)
上記実施例1,2及び比較例1,2の難燃加工剤を用いて、ポリエステル系合成繊維織物(レギュラーポリエステル100%織物 トロピカル)に対し染色同浴法により難燃加工を施した。
【0045】
詳細には、染色機としてMini−Color(テクサム技研製)を用い、下記表2に示す淡色染料と濃色染料の浴処方のそれぞれについて、浴比1:10で、60℃から昇温して、135℃×30分間処理した。処理後、80℃まで降温してから織物を取り出し、湯水洗×5分間の後、薬剤としてハイドロサルファイトナトリウム2g/L、ソーダ灰1g/L及びトライポールTK(第一工業製薬(株)製)1g/Lを用い、浴比1:30で80℃×10分間還元洗浄を行い、更に、湯水洗×5分間の後、180℃×30秒間ヒートセットを行った。なお、難燃加工剤の処理量は、表2に示すように、10%o.w.fと20%o.w.f(on the weight of
fiber(繊維重量に対する比率))の2種類で行った。
【0046】
【表2】
【0047】
以上により難燃加工されたポリエステル系合成繊維織物について、淡色染料で染色した織物では、風合いを調べるとともに、難燃剤の収着量と難燃性を測定した。また、濃色染料で染色したものについては、難燃剤の収着量と難燃性と摩擦堅牢度を測定した。また、ブランク(比較例7,12)として、難燃加工せずに染色した織物についても、風合い、難燃性及び摩擦堅牢度を測定した。結果を下記表3に示す。なお、難燃剤の収着量は、加工前後の織物の重量変化(染料の増加分等は補正)から求めた。
【0048】
【表3】
【0049】
表3に示すように、ジホスフェート化合物単独である比較例1の難燃加工剤を用いた場合、ポリエステル繊維への収着量が少なく、また耐久難燃性も不十分であり、風合いも硬いものであった。また、ジホスフェート化合物とTCPを併用した比較例2の難燃加工剤を用いた場合、収着量はある程度多くなるものの、低分子量で常温液体のTCPを併用していることから摩擦堅牢度が悪化しており、また耐久難燃性、特に濃色染色布の耐久難燃性が不十分であった。
【0050】
これに対し、ジホスフェート化合物とTPPを併用した実施例1,2の難燃加工剤を用いた場合、ポリエステル繊維への収着量が多く、淡色染料及び濃色染料ともに耐久難燃性が改善されており、また風合いや摩擦堅牢度の悪化もなかった。特に、ジホスフェート化合物とTPPとTCPの三者を併用した実施例1の難燃加工剤では、濃色染料で染色した場合でもドライクリーニングに対する耐久難燃性に優れていた。また、この場合、常温液体のTCPを併用しているにも拘わらず染色堅牢度がほとんど悪化しておらず、TPPとともに併用することによる有利な効果が示された。
【0051】
4.実施例11,12及び比較例13〜15(パッド・ドライ・サーモキュア法)
上記実施例1,2及び比較例1,2の難燃加工剤を用いて、ポリエステル系合成繊維織物(レギュラーポリエステル100%織物 トロピカル)に対しパッド・ドライ・サーモキュア法により難燃加工を施した。
【0052】
詳細には、難燃加工剤を水で15%に希釈した液に、上記織物を浸漬した後、マングルで絞り率70%に絞り、110℃×2分間乾燥し、180℃×2分間キュアした。その後、薬剤としてソーダ灰1g/L及びトライポールTK(第一工業製薬(株)製)1g/Lを用い、浴比1:30で80℃×10分間ソーピングを行い、更に、湯水洗×5分間の後、乾燥した。
【0053】
これにより難燃加工されたポリエステル系合成繊維織物について、難燃剤の収着量と難燃性を測定した。また、ブランク(比較例15)として、未処理の織物についても難燃性を測定した。結果を下記表4に示す。
【0054】
【表4】
【0055】
表4に示すように、ジホスフェート化合物とTPPを併用した実施例1,2の難燃加工剤を用いた場合、ポリエステル繊維への収着量が多く、耐久難燃性が改善されており、特に実施例1の難燃加工剤を用いた場合、ドライクリーニングに対する優れた耐久難燃性が発揮されていた。
【0056】
【発明の効果】
以上のように、本発明によれば、難燃剤として高分子量のジホスフェート化合物と低分子量で常温固体のトリフェニルホスフェートを併用したことにより、ポリエステル系合成繊維に対する難燃剤の収着量を向上することができ、優れた耐久難燃性を得ることができる。また、従来、低分子量のリン化合物を難燃剤として使用した場合、摩擦堅牢度を悪化させるという問題があったが、本発明であればその心配もない。更に、風合いの悪化も抑えることができる。
【0057】
そして、特に、常温液体のモノホスフェート化合物を更に併用することにより、難燃加工剤としての製品安定性を改善することができるとともに、濃色染色布にも優れた耐久難燃性を付与することができる。
【0058】
更に、本発明によれば、難燃剤としてノンハロゲンであるリン化合物を使用しているため、ポリエステル系合成繊維の燃焼時にハロゲン化ガスが発生することもなく、環境保護上にも有効である。[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a flame-retardant agent capable of imparting excellent flame retardancy to polyester synthetic fibers, a flame-retardant processing method using the same, and a flame-retardant polyester synthetic material obtained by the method. It is about fibers.
[0002]
[Prior art]
Conventionally, as a flame retardant for imparting flame retardancy to polyester synthetic fibers by post-processing, those in which a halogen compound such as hexabromocyclododecane is dispersed or emulsified in water have been generally used. . However, polyester synthetic fibers treated with such a halogen-based flame retardant may generate harmful halogenated gases such as bromodioxin when burned, and there is an increasing demand for dehalogenation.
[0003]
Therefore, a flame retardant using a phosphorus compound such as an organic phosphoric acid ester is used, but a phosphorus compound which is conventionally generally used as a flame retardant has a low phosphorus content in the compound, Because of its low molecular weight, it decomposes and volatilizes below the flash point of the polyester-based synthetic fiber, making it difficult to impart sufficient flame retardancy. Therefore, conventionally, it is necessary to treat a large amount of a phosphorus compound, and due to the large amount of treatment, it causes a decrease in texture or causes bleeding of the dye with the dye over time on the fiber surface, resulting in a decrease in dyeing and friction fastness. There was a problem.
[0004]
In order to solve such a problem, it has been proposed to use a diphosphate compound having a large molecular weight as a flame retardant. For example, in Patent Document 1 below, a solution obtained by dissolving or dispersing tetra (2,6-xylyl) -m-phenylenediphosphate is used as a flame-retardant processing agent, which is applied to a polyester-based synthetic fiber, and then dried. To perform flame-retardant processing.
[0005]
Patent Document 2 below discloses a method in which an aromatic diphosphate compound such as tetra (2,6-xylyl) -m-phenylenediphosphate is dispersed in water as fine particles of 2 μm or less with a specific nonionic surfactant. Flame retardants have been proposed.
[0006]
[Patent Document 1] Japanese Patent Application Laid-Open No. 8-41781
[Patent Document 2] Japanese Patent Application Laid-Open No. 2001-254268
[Problems to be solved by the invention]
Both of the flame-retardant processing agents disclosed in Patent Documents 1 and 2 use a diphosphate compound alone as a flame retardant. It has proven difficult to obtain the durable flame retardancy as actually required. That is, since the above-mentioned diphosphate compound has a large molecular weight as a flame retardant, even if it alone adheres (adsorbs) to the fiber surface of the polyester-based synthetic fiber, sorption accompanied by a phenomenon of being absorbed inside the fiber occurs. Hateful. Since the flame retardant simply adhering to the fiber surface is dropped off by a solvent such as alkaline cleaning such as reduction cleaning or dry cleaning, it is not possible to obtain sufficient durable flame retardancy, especially durability against dry cleaning.
[0009]
The present invention has been made in view of the above points, and does not impair the feeling or friction fastness, and increases the sorption amount of a phosphorus-based flame retardant to impart flame resistance excellent in durability. An object of the present invention is to provide a flame-retardant agent which can be used, a flame-retardant processing method using the same, and a polyester-based synthetic fiber having excellent durability and flame retardancy.
[0010]
[Means for Solving the Problems]
The present inventors have conducted intensive studies, and as a result, it has been found that by using triphenyl phosphate at room temperature together with the above-mentioned diphosphate compound, the amount of the phosphorus-based flame retardant sorbed to the polyester-based synthetic fiber can be increased. The present inventors have found that a flame-retardant property against washing and dry cleaning, which cannot be obtained by the diphosphate compound alone formulation, can be obtained, and have completed the present invention.
[0011]
That is, according to the present invention, there is provided a flame retardant for polyester synthetic fibers comprising an aqueous dispersion or an aqueous emulsion containing a diphosphate compound represented by the following general formula (1) and triphenyl phosphate. Is done.
[0012]
Embedded image
(Wherein, R 1 and R 2 represent a lower alkyl group and may be the same or different. R 3 and R 4 each represent a hydrogen atom or a lower alkyl group, and may be the same or different. N is 0 Represents an integer of from 4 to 4.)
[0013]
The flame retardant of the present invention preferably further contains, in addition to the above two components, a monophosphate compound composed of tris (alkylphenyl) monophosphate and / or trialkylmonophosphate which is liquid at room temperature.
[0014]
According to the present invention, there is also provided a method for flame-retarding polyester-based synthetic fibers, characterized in that the above-mentioned flame-retardant agent is used for sorption to polyester-based synthetic fibers by a high-temperature exhaustion method or a pad thermo method. You.
[0015]
According to the present invention, there is further provided a flame-retardant polyester-based synthetic fiber flame-retarded by the above method.
[0016]
BEST MODE FOR CARRYING OUT THE INVENTION
In the flame retardant of the present invention, the diphosphate compound used as the flame retardant is represented by the general formula (1). The lower alkyl group in R 1 , R 2 , R 3 and R 4 in the formula is a linear or branched alkyl group having 1 to 5 carbon atoms, for example, a methyl group, an ethyl group, a propyl group, an isopropyl group. Groups, n-butyl group, isobutyl group, tert-butyl group, n-pentyl group, isopentyl group, tert-pentyl group, and neopentyl group.
[0017]
Particularly preferred examples of the diphosphate compound include tetra (2,6-xylyl) -m-phenylenediphosphate represented by the following formula (2) and tetra (2,6-xylyl) -m-phenylenediphosphate represented by the following formula (3). 6-xylyl) -p-phenylenediphosphate, both of which may be used alone or in combination.
[0018]
Embedded image
[0019]
In the flame retardant of the present invention, triphenyl phosphate (TPP) used as a flame retardant together with the diphosphate compound is represented by the following formula (4).
[0020]
Embedded image
[0021]
The diphosphate compound has a high phosphorus content in the compound and a high molecular weight, and thus exhibits an excellent flame-retardant effect, but sorbs to the polyester-based synthetic fiber due to the large molecular weight. There is a disadvantage that it is difficult to do. Therefore, by using TPP which is a solid at normal temperature and has an effect of improving sorption, the amount of phosphorus compounds sorbed to the polyester-based synthetic fiber can be increased, and excellent durable flame retardancy can be imparted. Further, although TPP has a low molecular weight, it is hard to migrate since it is a solid at normal temperature, and thus it is difficult for the dye to bleed out to the fiber surface with an accompanying dye, and therefore, it is possible to suppress a decrease in color fastness. Note that sorption refers to a phenomenon involving absorption into the fiber when the phosphorus compound as a flame retardant is adsorbed on the fiber surface, but the entire structure of the phosphorus compound does not necessarily have to enter the fiber. This includes the case where only a part of the structure, for example, only the phenyl group at the end is penetrated into the fiber.
[0022]
In the flame retardant of the present invention, it is preferable to use a monophosphate compound composed of tris (alkylphenyl) monophosphate and / or trialkylmonophosphate as a flame retardant together with the diphosphate compound and TPP as the flame retardant. When only two components, a diphosphate compound and TPP, are used, since TPP is a solid at room temperature, the product stability of the flame retardant, which is an aqueous dispersion or an emulsion, is low. There is a problem that separation easily occurs. Therefore, the product stability of the flame retardant can be improved by using the above-mentioned monophosphate compound which is a liquid at room temperature.
[0023]
The alkylphenyl group and the alkyl group in the monophosphate compound are not particularly limited as long as they become a liquid monophosphate compound at normal temperature (about 20 ° C.). Preferably, the alkylphenyl group is a phenyl group having 1 to 3 linear or branched C1-C4 alkyl groups, and the alkyl group is a linear or branched C1-C6 alkyl group. Is an alkyl group. In addition, an alkylphenyl group is more preferable than an alkyl group from a viewpoint that affinity with a polyester synthetic fiber is higher. Specific examples of the monophosphate compound include tricresyl phosphate (TCP) represented by the following formula (5), trixylyl phosphate (TXP) represented by the following formula (6), triethyl phosphate, tributyl phosphate, and the like. No. Particularly preferred are TCP and TXP, and both may be used alone or in combination.
[0024]
Embedded image
[0025]
When the flame retardant component is composed of the above diphosphate compound and TPP, the ratio between the two is preferably such that the diphosphate compound is 40 to 80% by weight in the flame retardant component and the TPP is 20 to 60% by weight in the flame retardant component. . When the flame retardant component is composed of the above diphosphate compound, TPP and the above monophosphate compound, the ratio of these three components is such that the diphosphate compound is 40 to 80% by weight in the flame retardant component, and TPP is 19% in the flame retardant component. Preferably, the monophosphate compound accounts for 1 to 20% by weight of the flame retardant component.
[0026]
The flame retardant processing agent of the present invention is a water dispersion or water emulsion obtained by dispersing or emulsifying the above diphosphate compound, TPP, and preferably the above monophosphate compound in water in the presence of a surfactant. Body. As the surfactant at that time, one or both of a nonionic surfactant and an anionic surfactant are used.
[0027]
Specific examples of the nonionic surfactant include polyoxyalkylene alkylphenyl ether, polyoxyalkylene alkyl ether, polyoxyalkylene alkyl ester, polyhydric alcohol fatty acid ester alkylene oxide adduct, higher alkylamine alkylene oxide adduct, and fatty acid amide. Examples include alkylene oxide adducts, alkyl glycosides, and sucrose fatty acid esters. Preferably, polyoxyethylene distyrenated phenyl ether and polyoxyethylene tristyrenated phenyl ether are used.
[0028]
Specific examples of the anionic surfactants include higher alcohol sulfates, higher alkyl ether sulfates, alkyl sulfate salts such as sulfated fatty acid esters, alkyl benzene sulfonates, and alkyl sulfonate salts such as alkyl naphthalene sulfonates; Further, alkyl phosphate salts such as a higher alcohol phosphate ester salt and a higher alcohol alkylene oxide adduct phosphate ester salt are exemplified. Further, alkylaryl sulfonate salts, polyoxyalkylene alkyl ether sulfate salts, polyoxyalkylene alkyl ester phosphate salts, polyoxyalkylene alkyl ether carboxylate salts, polycarboxylate salts, funnel oil, petroleum sulfonates, alkyl diphenyl ether sulfonate salts and the like. Can be Preferred are polyoxyethylene distyrenated or tristyrenated phenyl ether sulfates.
[0029]
The use amount of such a surfactant is not particularly limited, but is usually used in the range of 10 to 30% by weight based on the phosphorus compound as a flame retardant component.
[0030]
In the flame retardant of the present invention, the content of the phosphorus compound as a flame retardant component is usually in the range of 30 to 50% by weight. The flame retardant of the present invention may contain an organic solvent such as methyl alcohol, ethyl alcohol, toluene, ethylene glycol and butyl cellosolve in order to stabilize the dispersed or emulsified state. Also, various additives such as an ultraviolet absorber and an antioxidant can be blended.
[0031]
The flame retardant of the present invention is used for imparting flame retardancy to polyester synthetic fibers by post-processing. Examples of such post-processing include a high-temperature exhaustion method and a pad thermo method. Is mentioned.
[0032]
In the high-temperature exhaustion method, a polyester synthetic fiber is immersed in a treatment bath to which a flame retardant is added, and treated at a high temperature (usually 80 ° C. or higher, preferably 110 to 150 ° C.) for a predetermined time (for example, 2 to 60 minutes). By doing so, the flame retardant is sorbed on the fiber. Preferably, it is a dyeing and bathing method in which the flame retardant is simultaneously sorbed to the fiber at the same time as the dye. That is, it is efficient and preferable to add a flame retardant to the dyeing bath, immerse the polyester synthetic fiber in the dyeing bath, and perform the exhaustion treatment at a high temperature.
[0033]
In the pad thermo method, polyester synthetic fibers are immersed in a liquid containing a flame retardant, squeezed with a mangle or the like to a predetermined amount, and heat-treated by steaming such as dry heat treatment or superheated steam treatment. By doing so, the flame retardant is sorbed on the fibers. The heat treatment temperature is usually in the range of 110 to 210 ° C. Preferably, after immersion, it is processed by a pad dry thermocure method of squeezing with a mangle, drying and heat setting.
[0034]
The polyester synthetic fiber to be processed is obtained by copolymerizing or blending a polyester such as polyethylene terephthalate or polybutylene terephthalate, or a third component such as isophthalic acid, isophthalic acid sulfonate, adipic acid or polyethylene glycol. It is a fiber made of a polyester obtained, and may be a long fiber or a short fiber. Further, the form of the fiber is not particularly limited as long as it is a fiber product such as a yarn, a woven or knitted fabric, a nonwoven fabric, or a rope. Further, other synthetic fibers, natural fibers, and semi-synthetic fibers may be mixed with the polyester-based synthetic fibers as long as the effects of the present invention are not impaired.
[0035]
【Example】
Hereinafter, the present invention will be described in more detail with reference to Examples, but the present invention is not limited to these Examples. In the examples, "parts" indicates parts by weight, and "%" indicates% by weight.
[0036]
1. Evaluation method (1) Product stability The flame retardant was allowed to stand at room temperature for 30 days, and the state of the aqueous dispersion or emulsion after the standing was evaluated. The evaluation was `` ○ '' when water separation or separation did not occur and the state immediately after preparation was maintained, and `` × '' when water separation or separation occurred and the original dispersion or emulsified state could not be restored even after shaking. "△" indicates that the original dispersion or emulsified state was restored by shaking with slight water separation or separation.
[0037]
(2) Flame retardancy The JIS L 1091 A-1 method (micro burner method) and JIS L 1091 D method are used for the woven fabric that has undergone flame-retardant processing, and the woven fabric that has been processed and the one that has been washed with water or dry-cleaned under the following conditions. Flame retardancy was measured by the method (coil method). In the micro burner method, after 1 minute of heating and 3 seconds after the flame application, the residual flame is 3 seconds or less, the residual dust is 5 seconds or less, and the carbonization area is 30 cm 2 or less. Indicates “×”. In the coil method, a sample having three or more times of flame contact was indicated by “○”, and a sample having two or less times of contact was indicated by “×”.
[0038]
(Washing) According to JIS K 3371, a weak alkaline type 1 detergent was used at a ratio of 1 g / L, a bath ratio of 1:40, and water washing at 60 ° C. ± 2 ° C. for 15 minutes, and then at 40 ° C. ± 2 ° C. Rinsing for 5 minutes was performed three times, centrifugal dehydration was performed for 2 minutes, and thereafter, the process of drying with hot air at 60 ° C. ± 5 ° C. was performed once, and this was performed five times.
[0039]
(Dry Cleaning) 30 ° C. ± 2 ° C. using 12.6 mL of tetrachloroethylene and 0.265 g of charge soap (nonionic surfactant / anionic surfactant / water = 10/10/1 (weight ratio)) per 1 g of sample. Was performed once for 15 minutes, and this was performed five times.
[0040]
(3) Dye fastness The woven fabric flame-retarded with a dark dye was measured according to JIS L 0849 6.1 (2) dry test or 6.2 (2) wet test. 6.1 (2) In the drying test, the test cloth and the white cotton cloth for friction are left in a standard state for 4 hours or more in advance. With a friction tester type II, the mass of the friction element was set to about 200 g, the test piece was mounted on the test piece stand, and a white cotton cloth for friction was attached to the tip of the friction element, respectively. Rub 100 reciprocations at a speed of 30 reciprocations per minute. 6.2 (2) In the wet test, after rubbing the test piece in the standard condition in the same manner as in the 6.1 (2) dry test, using a white cotton cloth for friction rubbed with water to make it about 100% wet. At a temperature not exceeding 60 ° C. The coloring of the white cotton cloth for friction is determined according to JIS L 0801, 9. (Determination of the color fastness), the grade is determined using the gray scale for staining.
[0041]
2. Examples 1 and 2 and Comparative Examples 1 and 2 (flame retardant)
According to the composition shown in Table 1 below, the respective flame retardants of Examples 1 and 2 and Comparative Examples 1 and 2 were prepared. In Table 1, "PX-200" is tetra (2,6-xylyl) -m-phenylenediphosphate manufactured by Daihachi Chemical Co., Ltd., "TPP" is triphenyl phosphate manufactured by Daihachi Chemical Co., Ltd., ""TCP" is tricresyl phosphate manufactured by Daihachi Chemical Co., Ltd. In the above preparation, the surfactant used for emulsification / dispersion was “Neugen EA-87” manufactured by Daiichi Kogyo Seiyaku Co., Ltd., and the anionic surfactant was Daiichi Kogyo Seiyaku ( "HYTENOL NF-13".
[0042]
[Table 1]
[0043]
As shown in Table 1, the product stability of the flame retardant of Example 1 in which the diphosphate compound, TPP and TCP were used in combination was improved as compared with the flame retardant of Example 2 in which TCP was not used in combination. It had been.
[0044]
3. Examples 3 to 10 and Comparative Examples 3 to 12 (Dyeing same bath method)
Using the flame retardant agents of Examples 1 and 2 and Comparative Examples 1 and 2, a flame retardant treatment was applied to a polyester synthetic fiber woven fabric (regular 100% woven fabric tropical) by the same dyeing and bathing method.
[0045]
Specifically, using Mini-Color (manufactured by Texam Giken) as a dyeing machine, the bath formulation of the light-colored dye and the dark-colored dye shown in Table 2 below was heated from 60 ° C. at a bath ratio of 1:10. And treated at 135 ° C. for 30 minutes. After the treatment, the fabric was taken out after the temperature was lowered to 80 ° C, washed with hot water and water for 5 minutes, and then sodium hydrosulfite 2 g / L, soda ash 1 g / L and Tripol TK (manufactured by Daiichi Kogyo Seiyaku Co., Ltd.) ) Using 1 g / L, reduction washing was carried out at a bath ratio of 1:30 at 80 ° C. × 10 minutes, and after hot water washing × 5 minutes, heat set was performed at 180 ° C. × 30 seconds. In addition, the processing amount of the flame retardant was 10% o. w. f and 20% o. w. f (on the weight of
fiber (ratio to fiber weight)).
[0046]
[Table 2]
[0047]
With respect to the polyester synthetic fiber woven fabric which has been subjected to the above-described flame-retardant processing, the woven fabric dyed with a light-colored dye was examined for the feeling, and the sorbed amount of the flame retardant and the flame retardancy were measured. In addition, for those dyed with the dark dye, the sorption amount of the flame retardant, the flame retardancy and the fastness to friction were measured. The texture, the flame retardancy and the fastness to friction were also measured for the fabrics dyed without flame retardancy as blanks (Comparative Examples 7 and 12). The results are shown in Table 3 below. The sorption amount of the flame retardant was determined from the weight change of the woven fabric before and after processing (the increase in the dye was corrected).
[0048]
[Table 3]
[0049]
As shown in Table 3, when the flame retardant of Comparative Example 1, which is a diphosphate compound alone, was used, the amount of sorption on the polyester fiber was small, the durable flame retardancy was insufficient, and the texture was hard. Was something. Further, when the flame retardant of Comparative Example 2 in which the diphosphate compound and TCP were used in combination was used, although the sorption amount was increased to some extent, the low-molecular weight and room temperature liquid TCP was used in combination, so that the friction fastness was low. However, the durability and flame retardancy of dark color dyed fabrics were insufficient.
[0050]
On the other hand, when the flame-retardant processing agents of Examples 1 and 2 in which a diphosphate compound and TPP were used in combination were used, the amount of sorption on polyester fiber was large, and the durability of both light-colored dyes and dark-colored dyes was improved. And there was no deterioration in the texture or the fastness to friction. In particular, the flame retardant of Example 1 in which the diphosphate compound, TPP and TCP were combined was excellent in durability against dry cleaning even when dyed with a deep dye. In addition, in this case, although the room temperature liquid TCP was used in combination, the color fastness was hardly deteriorated, and an advantageous effect by using together with TPP was shown.
[0051]
4. Examples 11 and 12 and Comparative Examples 13 to 15 (Pad Dry Thermocure Method)
Using the flame retardant agents of Examples 1 and 2 and Comparative Examples 1 and 2, a flame retardant treatment was applied to a polyester synthetic fiber woven fabric (regular 100% woven fabric tropical) by a pad dry thermocure method. .
[0052]
Specifically, after immersing the woven fabric in a solution obtained by diluting a flame retardant to 15% with water, the fabric was squeezed with a mangle to a squeezing ratio of 70%, dried at 110 ° C for 2 minutes, and cured at 180 ° C for 2 minutes. . Thereafter, using 1 g / L of soda ash and 1 g / L of Tripol TK (manufactured by Dai-ichi Kogyo Seiyaku Co., Ltd.) as agents, soaping was performed at 80 ° C. for 10 minutes at a bath ratio of 1:30, and further, washing with hot and cold water × 5 After a minute, it was dried.
[0053]
With respect to the polyester-based synthetic fiber woven fabric which was thus subjected to the flame-retardant processing, the sorption amount of the flame retardant and the flame retardancy were measured. Further, as a blank (Comparative Example 15), the flame retardancy was measured for an untreated woven fabric. The results are shown in Table 4 below.
[0054]
[Table 4]
[0055]
As shown in Table 4, when the flame retardant of Examples 1 and 2 in which a diphosphate compound and TPP were used in combination was used, the amount of sorption to the polyester fiber was large, and the durability flame retardancy was improved. In particular, when the flame retardant of Example 1 was used, excellent durable flame retardancy against dry cleaning was exhibited.
[0056]
【The invention's effect】
As described above, according to the present invention, the combined use of a high molecular weight diphosphate compound and a low molecular weight, normal temperature solid triphenyl phosphate as a flame retardant improves the sorption amount of the flame retardant to the polyester synthetic fiber. And excellent durable flame retardancy can be obtained. Further, conventionally, when a low molecular weight phosphorus compound was used as a flame retardant, there was a problem that friction fastness was deteriorated. However, according to the present invention, there is no problem. Further, deterioration of the texture can be suppressed.
[0057]
In particular, by further using a normal temperature liquid monophosphate compound together, it is possible to improve the product stability as a flame retardant, and to impart excellent durability flame retardancy to a dark-colored dyed cloth. Can be.
[0058]
Further, according to the present invention, since a non-halogen phosphorus compound is used as the flame retardant, no halogenated gas is generated when the polyester-based synthetic fiber is burned, which is effective in environmental protection.
Claims (9)
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JP2006348443A (en) * | 2005-06-20 | 2006-12-28 | Nicca Chemical Co Ltd | Flame retardant for polyester fiber |
WO2008013176A1 (en) * | 2006-07-25 | 2008-01-31 | Nippon Kayaku Kabushiki Kaisha | Non-halogen dispersion for fireproofing, fireproofing method using the same, and fiber fireproofed with the same |
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JP2006348443A (en) * | 2005-06-20 | 2006-12-28 | Nicca Chemical Co Ltd | Flame retardant for polyester fiber |
WO2008013176A1 (en) * | 2006-07-25 | 2008-01-31 | Nippon Kayaku Kabushiki Kaisha | Non-halogen dispersion for fireproofing, fireproofing method using the same, and fiber fireproofed with the same |
TWI424108B (en) * | 2006-07-25 | 2014-01-21 | Nippon Kayaku Kk | Non-halogenated dispersions for flame retarding, flame retarding modification method using the dispersions and flame retarding modified fibers by the method |
EP2133461A1 (en) | 2008-06-12 | 2009-12-16 | Huntsman Textile Effects (Germany) GmbH | Compound for treating fibrous material, in particular by the method of extraction |
US8303835B2 (en) | 2008-06-12 | 2012-11-06 | Huntsman Textile Effects (Germany) Gmbh | Composition for treatment of fiber materials by exhaust method in particular |
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CN112921645A (en) * | 2021-01-26 | 2021-06-08 | 山东针巧经编有限公司 | Flame-retardant preparation method of high-color-fastness wool fabric and high-color-fastness wool fabric |
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