JP2007262588A - Multifilament yarn for microfiber - Google Patents
Multifilament yarn for microfiber Download PDFInfo
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- JP2007262588A JP2007262588A JP2006085069A JP2006085069A JP2007262588A JP 2007262588 A JP2007262588 A JP 2007262588A JP 2006085069 A JP2006085069 A JP 2006085069A JP 2006085069 A JP2006085069 A JP 2006085069A JP 2007262588 A JP2007262588 A JP 2007262588A
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- 229920001410 Microfiber Polymers 0.000 title claims description 19
- 239000003658 microfiber Substances 0.000 title claims description 18
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 claims abstract description 12
- IAYPIBMASNFSPL-UHFFFAOYSA-N Ethylene oxide Chemical compound C1CO1 IAYPIBMASNFSPL-UHFFFAOYSA-N 0.000 claims abstract description 10
- 229920000728 polyester Polymers 0.000 claims abstract description 10
- 230000003068 static effect Effects 0.000 claims abstract description 10
- GOOHAUXETOMSMM-UHFFFAOYSA-N Propylene oxide Chemical compound CC1CO1 GOOHAUXETOMSMM-UHFFFAOYSA-N 0.000 claims abstract description 6
- 229920005606 polypropylene copolymer Polymers 0.000 claims abstract description 5
- 239000003795 chemical substances by application Substances 0.000 claims description 23
- 239000000835 fiber Substances 0.000 claims description 11
- 238000004519 manufacturing process Methods 0.000 claims description 5
- 238000000034 method Methods 0.000 abstract description 24
- 239000003921 oil Substances 0.000 description 27
- -1 ether ester Chemical class 0.000 description 10
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 8
- 238000005259 measurement Methods 0.000 description 7
- 238000012545 processing Methods 0.000 description 7
- 239000004721 Polyphenylene oxide Substances 0.000 description 5
- 229920000570 polyether Polymers 0.000 description 5
- 238000004804 winding Methods 0.000 description 5
- 238000009987 spinning Methods 0.000 description 4
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 3
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 3
- 229920001577 copolymer Polymers 0.000 description 3
- 235000014113 dietary fatty acids Nutrition 0.000 description 3
- 239000000194 fatty acid Substances 0.000 description 3
- 229930195729 fatty acid Natural products 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 239000010802 sludge Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- KKEYFWRCBNTPAC-UHFFFAOYSA-N Terephthalic acid Chemical compound OC(=O)C1=CC=C(C(O)=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-N 0.000 description 2
- 229920006311 Urethane elastomer Polymers 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 239000002216 antistatic agent Substances 0.000 description 2
- 238000007334 copolymerization reaction Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- POULHZVOKOAJMA-UHFFFAOYSA-N dodecanoic acid Chemical compound CCCCCCCCCCCC(O)=O POULHZVOKOAJMA-UHFFFAOYSA-N 0.000 description 2
- 239000000839 emulsion Substances 0.000 description 2
- 150000004665 fatty acids Chemical class 0.000 description 2
- 238000009499 grossing Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- IPCSVZSSVZVIGE-UHFFFAOYSA-N hexadecanoic acid Chemical compound CCCCCCCCCCCCCCCC(O)=O IPCSVZSSVZVIGE-UHFFFAOYSA-N 0.000 description 2
- FUZZWVXGSFPDMH-UHFFFAOYSA-N hexanoic acid Chemical compound CCCCCC(O)=O FUZZWVXGSFPDMH-UHFFFAOYSA-N 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- WWZKQHOCKIZLMA-UHFFFAOYSA-N octanoic acid Chemical compound CCCCCCCC(O)=O WWZKQHOCKIZLMA-UHFFFAOYSA-N 0.000 description 2
- 230000000704 physical effect Effects 0.000 description 2
- 230000002522 swelling effect Effects 0.000 description 2
- 239000000080 wetting agent Substances 0.000 description 2
- ALSTYHKOOCGGFT-KTKRTIGZSA-N (9Z)-octadecen-1-ol Chemical compound CCCCCCCC\C=C/CCCCCCCCO ALSTYHKOOCGGFT-KTKRTIGZSA-N 0.000 description 1
- WRIDQFICGBMAFQ-UHFFFAOYSA-N (E)-8-Octadecenoic acid Natural products CCCCCCCCCC=CCCCCCCC(O)=O WRIDQFICGBMAFQ-UHFFFAOYSA-N 0.000 description 1
- YIWUKEYIRIRTPP-UHFFFAOYSA-N 2-ethylhexan-1-ol Chemical group CCCCC(CC)CO YIWUKEYIRIRTPP-UHFFFAOYSA-N 0.000 description 1
- LQJBNNIYVWPHFW-UHFFFAOYSA-N 20:1omega9c fatty acid Natural products CCCCCCCCCCC=CCCCCCCCC(O)=O LQJBNNIYVWPHFW-UHFFFAOYSA-N 0.000 description 1
- LLLVZDVNHNWSDS-UHFFFAOYSA-N 4-methylidene-3,5-dioxabicyclo[5.2.2]undeca-1(9),7,10-triene-2,6-dione Chemical compound C1(C2=CC=C(C(=O)OC(=C)O1)C=C2)=O LLLVZDVNHNWSDS-UHFFFAOYSA-N 0.000 description 1
- QSBYPNXLFMSGKH-UHFFFAOYSA-N 9-Heptadecensaeure Natural products CCCCCCCC=CCCCCCCCC(O)=O QSBYPNXLFMSGKH-UHFFFAOYSA-N 0.000 description 1
- 239000005635 Caprylic acid (CAS 124-07-2) Substances 0.000 description 1
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- 239000005639 Lauric acid Substances 0.000 description 1
- 241000047703 Nonion Species 0.000 description 1
- 239000005642 Oleic acid Substances 0.000 description 1
- ZQPPMHVWECSIRJ-UHFFFAOYSA-N Oleic acid Natural products CCCCCCCCC=CCCCCCCCC(O)=O ZQPPMHVWECSIRJ-UHFFFAOYSA-N 0.000 description 1
- 229910019142 PO4 Inorganic materials 0.000 description 1
- 235000021314 Palmitic acid Nutrition 0.000 description 1
- 239000006096 absorbing agent Substances 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000004480 active ingredient Substances 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 150000004996 alkyl benzenes Chemical class 0.000 description 1
- 239000002519 antifouling agent Substances 0.000 description 1
- 239000003963 antioxidant agent Substances 0.000 description 1
- 230000003078 antioxidant effect Effects 0.000 description 1
- 229920001400 block copolymer Polymers 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- LQZZUXJYWNFBMV-UHFFFAOYSA-N dodecan-1-ol Chemical compound CCCCCCCCCCCCO LQZZUXJYWNFBMV-UHFFFAOYSA-N 0.000 description 1
- 239000000975 dye Substances 0.000 description 1
- 239000003995 emulsifying agent Substances 0.000 description 1
- 230000001804 emulsifying effect Effects 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- 239000006081 fluorescent whitening agent Substances 0.000 description 1
- 230000002427 irreversible effect Effects 0.000 description 1
- QXJSBBXBKPUZAA-UHFFFAOYSA-N isooleic acid Natural products CCCCCCCC=CCCCCCCCCC(O)=O QXJSBBXBKPUZAA-UHFFFAOYSA-N 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 239000006224 matting agent Substances 0.000 description 1
- 239000002480 mineral oil Substances 0.000 description 1
- 235000010446 mineral oil Nutrition 0.000 description 1
- WQEPLUUGTLDZJY-UHFFFAOYSA-N n-Pentadecanoic acid Natural products CCCCCCCCCCCCCCC(O)=O WQEPLUUGTLDZJY-UHFFFAOYSA-N 0.000 description 1
- 229960002446 octanoic acid Drugs 0.000 description 1
- ZQPPMHVWECSIRJ-KTKRTIGZSA-N oleic acid Chemical compound CCCCCCCC\C=C/CCCCCCCC(O)=O ZQPPMHVWECSIRJ-KTKRTIGZSA-N 0.000 description 1
- 229940055577 oleyl alcohol Drugs 0.000 description 1
- XMLQWXUVTXCDDL-UHFFFAOYSA-N oleyl alcohol Natural products CCCCCCC=CCCCCCCCCCCO XMLQWXUVTXCDDL-UHFFFAOYSA-N 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000010452 phosphate Substances 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 229920000139 polyethylene terephthalate Polymers 0.000 description 1
- 239000005020 polyethylene terephthalate Substances 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 229920005604 random copolymer Polymers 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 150000003333 secondary alcohols Chemical class 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- BDHFUVZGWQCTTF-UHFFFAOYSA-M sulfonate Chemical compound [O-]S(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-M 0.000 description 1
- 125000001273 sulfonato group Chemical class [O-]S(*)(=O)=O 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
- 239000012209 synthetic fiber Substances 0.000 description 1
- KKEYFWRCBNTPAC-UHFFFAOYSA-L terephthalate(2-) Chemical compound [O-]C(=O)C1=CC=C(C([O-])=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-L 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 238000009941 weaving Methods 0.000 description 1
- 239000002759 woven fabric Substances 0.000 description 1
Landscapes
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
- Artificial Filaments (AREA)
- Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
- Chemical Treatment Of Fibers During Manufacturing Processes (AREA)
Abstract
Description
本発明はマイクロファイバ−用マルチフィラメント糸に関するものであり、さらに詳しくはポリエステルからなるマイクロファイバー加工糸を製造するのに適したマルチフィラメント糸に関する。 The present invention relates to a multifilament yarn for microfiber, and more particularly to a multifilament yarn suitable for producing a microfiber processed yarn made of polyester.
単糸繊度が小さく細いマイクロファイバーから構成された加工糸は、通常の糸条に比べて吸水性、風合、保温性等が優れているため、インナーからアウター衣料に至るまで幅広く使用されるようになってきている。しかし高品位とするためには単糸繊度をより小さくすることが要求され、その生産は困難性を増している。特に生産工程途中における繊維糸条中の細い繊維が切れることによる毛羽の発生、ひいては糸条の断糸が発生するということが大きな問題であった。 Processed yarn composed of fine microfiber with small single yarn fineness is superior in water absorption, texture, heat retention, etc. compared to normal yarn, so it seems to be widely used from inner to outer clothing It is becoming. However, in order to achieve high quality, it is required to make the single yarn fineness smaller, and its production has become more difficult. In particular, the generation of fuzz due to the cutting of thin fibers in the fiber yarn during the production process, and the occurrence of yarn breakage of the yarn, was a major problem.
このような問題の解決法としては、単糸の繊度斑を無くし極端に強力の弱い単糸を発生させないという方法があり、たとえば特許文献１や２では未延伸マルチフィラメント糸を製糸する際、ポリエーテル系油剤を多段オイリングで付与し紡糸張力を下げて単糸の品質斑を抑制する方法が、特許文献３には、マルチフィラメントの断面方向周りから環状に冷却風をマルチフィラメントに供給、冷却することで単糸の品質斑を少なくする方法が提案されている。 As a solution to such a problem, there is a method of eliminating fineness unevenness of a single yarn and preventing generation of extremely weak single yarn. For example, in Patent Documents 1 and 2, when producing an undrawn multifilament yarn, A method in which ether oil is applied by multi-stage oiling to reduce spinning tension and suppress the quality irregularity of single yarn is disclosed in Patent Document 3, in which cooling air is supplied to the multifilament in an annular manner from around the cross-sectional direction of the multifilament and cooled. Thus, a method for reducing the quality unevenness of the single yarn has been proposed.
また、工程での耐毛羽性を向上させるために繊維油剤を改良する方法も提案されており、特許文献４では低分子量のポリエーテルと高分子量ポリエーテルをベース成分にエーテルエステル及びエーテルノニオンを併用した油剤が、特許文献５にはポリエーテルをベース成分に特定なエーテルエステルを併用した油剤が提案されている。 In addition, a method of improving a fiber oil agent has been proposed in order to improve the fluff resistance in the process, and Patent Document 4 uses a low molecular weight polyether and a high molecular weight polyether as a base component in combination with an ether ester and an ether nonion. Patent Document 5 proposes an oil agent using a polyether as a base component and a specific ether ester.
しかし確かにこのような繊維の単繊度斑の改良や耐毛羽油剤によってある程度の毛羽や工程での断糸性の改善は可能であるものの、未だ満足できるレベルまでには改善されていないのが実状である。 However, although it is possible to improve the fluff and the thread breakage in a certain degree of process by improving the single fineness unevenness of such fibers and the anti-fuzzy oil agent, it has not been improved to a satisfactory level yet. It is.
本発明の目的は仮撚り加工工程での毛羽や断糸の発生がほとんどなく、極めて安定した加工性を有するマルチフィラメント糸を提供することにある。 An object of the present invention is to provide a multifilament yarn having very stable processability with little occurrence of fuzz and yarn breakage in the false twisting process.
本発明のマイクロファイバー用マルチフィラメント糸は、単糸繊度が１．５ｄｔｅｘ以下のポリエステル繊維からなる複屈折率０．０３〜０．０６、伸度１００〜２５０％のマルチフィラメント糸であって、交絡度が５〜２０個／ｍ、フィラメント−フィラメント間静摩擦係数が０．２５〜０．４０、かつフィラメント−ウレタン間動摩擦係数が０．２５〜０．４０であることを特徴とする。 The multifilament yarn for microfiber of the present invention is a multifilament yarn having a birefringence of 0.03 to 0.06 and an elongation of 100 to 250% made of polyester fiber having a single yarn fineness of 1.5 dtex or less. The degree is 5 to 20 pieces / m, the filament-filament static friction coefficient is 0.25 to 0.40, and the filament-urethane dynamic friction coefficient is 0.25 to 0.40.
さらには該マルチフィラメント糸がプロピレンオキサイドとエチレンオキサイドとの共重合体からなる油剤が付着したものであり、該油剤の平均分子量が１０００〜７０００であるとともに油剤付着量が０．２〜３重量％であることが好ましい。 Further, the multifilament yarn has an oil agent made of a copolymer of propylene oxide and ethylene oxide attached thereto, and the oil agent has an average molecular weight of 1000 to 7000 and an oil agent attachment amount of 0.2 to 3% by weight. It is preferable that
またもう一つの本発明であるマイクロファイバー加工糸の製造方法は、本発明のマイクロファイバー用マルチフィラメントを延伸仮撚加工することを特徴とする。 In addition, another method for producing a microfiber processed yarn according to the present invention is characterized in that the multifilament for microfiber according to the present invention is drawn by false twisting.
本発明によれば、仮撚り加工工程での毛羽や断糸の発生がほとんどなく、極めて安定した加工性を有するマルチフィラメント糸が提供される。 According to the present invention, there is provided a multifilament yarn having very stable workability with little occurrence of fuzz and breakage in the false twisting process.
以下、本発明の実施の形態について詳細に説明する。
本発明のマイクロファイバー用マルチフィラメント糸は、単糸繊度が１．５ｄｔｅｘ以下のポリエステル繊維からなる糸条である。本発明でいうポリエステルとは、繰り返し単位としてエチレンテレフタレートが８５モル％以上、好ましくは９５モル％以上を占めるポリエステルである。テレフタレート酸及び／またはエチレングリコール成分以外の成分を少量（通常はテレフタル酸成分に対して１５モル％以下）共重合したものであってもよい。これらのポリエステルには、公知の添加剤、例えば顔料、染料、艶消し剤、防汚剤、蛍光増白剤、難燃剤、安定剤、紫外線吸収剤、滑剤等を含んでもよい。
Hereinafter, embodiments of the present invention will be described in detail.
The multifilament yarn for microfiber of the present invention is a yarn comprising a polyester fiber having a single yarn fineness of 1.5 dtex or less. The polyester referred to in the present invention is a polyester in which ethylene terephthalate occupies 85 mol% or more, preferably 95 mol% or more as a repeating unit. A component obtained by copolymerizing a component other than terephthalate acid and / or ethylene glycol component in a small amount (usually 15 mol% or less based on the terephthalic acid component) may be used. These polyesters may contain known additives such as pigments, dyes, matting agents, antifouling agents, fluorescent whitening agents, flame retardants, stabilizers, ultraviolet absorbers, lubricants and the like.
マルチフィラメントの単糸繊度としては、１．５ｄｔｅｘ以下である。さらには１．０〜０．５ｄｔｅｘの範囲であることが好ましい。マルチフィラメントの単糸繊度が１．５ｄｔｅｘを超える場合には、本発明の他の要件を満たさなくとも、毛羽や断糸の少ない加工糸をある程度は安定して製造することが可能である。 The single filament fineness of the multifilament is 1.5 dtex or less. Furthermore, it is preferable that it is the range of 1.0-0.5 dtex. When the single filament fineness of the multifilament exceeds 1.5 dtex, it is possible to produce a processed yarn with less fuzz and yarn breakage to a certain extent without satisfying the other requirements of the present invention.
また本発明のマルチフィラメント糸はその物性として複屈折率０．０３〜０．０６、伸度１００〜２５０％の範囲であることが必要である。複屈折率０．０３未満のマルチフィラメント糸では仮撚加工でヒーターに糸条が接触したとき脆化し、断糸するため仮撚加工工程の最初の操作を開始することができない。複屈折率０．０６を超えるマルチフィラメント糸の場合には、仮撚加工時の毛羽発生を低減することは極めて困難となる。伸度が不足すると仮撚り加工時に同時に延伸することができず、伸度が大きすぎると延伸斑が生じ、毛羽や断糸も発生し易くなる。このようなマルチフィラメント糸は、定法により例えば２５００〜４０００ｍ／分の範囲で紡糸引取りを行うことにより得ることができ、一般的には未延伸糸と呼ばれるものである。 Moreover, the multifilament yarn of the present invention needs to have a birefringence of 0.03 to 0.06 and an elongation of 100 to 250% as its physical properties. A multifilament yarn having a birefringence of less than 0.03 is embrittled when the yarn comes into contact with the heater during false twisting and breaks, so the first operation of the false twisting process cannot be started. In the case of a multifilament yarn having a birefringence index exceeding 0.06, it is extremely difficult to reduce the occurrence of fuzz during false twisting. If the elongation is insufficient, it cannot be simultaneously stretched during false twisting. If the elongation is too large, stretch spots occur, and fluff and yarn breakage are likely to occur. Such a multifilament yarn can be obtained by carrying out a spinning take-up in a range of, for example, 2500 to 4000 m / min by a conventional method, and is generally called an undrawn yarn.
さらに本発明のマルチフィラメント糸は、交絡度が５〜２０個／ｍの範囲であることが必要である。交絡することによりマルチフィラメント糸の集束性を向上させて、毛羽の発生を抑制することができる。交絡度が５個／ｍ未満の場合は、集束性不良による綾外れが発生しやすい。逆に付与する交絡数が多いほど集束性が向上して毛羽の発生は抑制されるものの、交絡度が２０個／ｍより多くなるとマイクロファイバー加工糸とするための仮撚加工する際に未解撚スポットが多くなる問題が発生する。また、圧空圧のアップによるエネルギーコストの増大や、製織後の織物に残留する交絡数が多くなるという問題もあるので、交絡度は２０個／ｍ以下であることが必要である。このような交絡を行う方法としては、空気交絡処理が好ましい。空気交絡処理は、紡糸して得たポリエステル繊維に油剤処理を施した後、例えば従来公知のインターレースノズルを使用する方法が例示されるが、これに限定されるものではない。 Furthermore, the multifilament yarn of the present invention needs to have an entanglement degree in the range of 5 to 20 pieces / m. By confounding, the convergence of the multifilament yarn can be improved and the generation of fluff can be suppressed. When the degree of entanglement is less than 5 / m, traverse due to poor convergence tends to occur. Conversely, as the number of entanglements applied increases, the convergence is improved and the generation of fluff is suppressed. However, when the degree of entanglement exceeds 20 / m, it is unclear when performing false twisting to obtain a microfiber processed yarn. The problem that the twist spot increases increases. In addition, there is a problem that the energy cost increases due to the increased pressure and air pressure, and the number of entanglements remaining in the woven fabric after weaving increases, and therefore the degree of entanglement needs to be 20 pieces / m or less. As a method of performing such entanglement, air entanglement processing is preferable. Examples of the air entanglement treatment include a method of using a conventionally known interlace nozzle after applying an oil agent treatment to a polyester fiber obtained by spinning, but is not limited thereto.
そして本発明のマイクロファイバー用マルチフィラメント糸は、そのフィラメント・フィラメント間静摩擦係数が０．２５〜０．３５であることを必須とする。フィラメント・フィラメント間静摩擦係数が０．２５未満では合成繊維未延伸マルチフィラメント糸（ＰＯＹ）を巻き取ったパッケージに綾外れが多く、マルチフィラメントを後に仮撚加工をする際にＰＯＹの解舒不良による断糸を誘発しやすい。逆にフィラメント・フィラメント間静摩擦係数が０．３５を超えると仮撚加工時、撚り掛け具、例えばウレタンディスク部で加撚する際、単糸間での擦過が大きく毛羽が発生しやすくなる問題がある。 And it is essential for the multifilament yarn for microfibers of this invention that the coefficient of static friction between filaments and filaments is 0.25 to 0.35. When the coefficient of static friction between filaments and filaments is less than 0.25, the package wound with the synthetic fiber unstretched multifilament yarn (POY) has a lot of traverse, and when the multifilament is later false twisted, POY is unwound. It is easy to induce thread breakage. Conversely, if the coefficient of static friction between filaments and filaments exceeds 0.35, during false twisting, when twisting with a twisting tool, for example, a urethane disk part, there is a problem that fluffing between single yarns is likely to occur and fluff is likely to occur. is there.
さらには本発明ではフィラメント・ウレタン間動摩擦係数が、０．２５〜０．４０の範囲にすることが重要である。フィラメント・ウレタン間動摩擦係数が０．２５未満では、後の仮撚り加工時のウレタンデスク部でスリップによる糸送りが悪く、解撚張力／加撚張力比が大きくなり、毛羽が発生しやすいという問題がおこる。逆にフィラメント・ウレタン間動摩擦係数が０．４０を超えるとウレタンデスク部での摩擦抵抗によって糸切れしやすい問題がある。ただし未延伸糸の状態でフィラメント・ウレタン間動摩擦係数を安定して測定することは困難であるため、本発明ではあらかじめマルチフィラメント糸を１．６５倍に冷延伸し、その後に測定した値を本発明のフィラメント・ウレタン間動摩擦係数とした。本発明は、このようにフィラメント・フィラメント間静摩擦係数及びフィラメント・ウレタン間動摩擦係数を適正範囲に設定することにより、極めて安定した加工品質が得られたのである。 Furthermore, in the present invention, it is important that the dynamic friction coefficient between the filament and the urethane is in the range of 0.25 to 0.40. When the coefficient of friction between the filament and urethane is less than 0.25, the yarn feed due to slip in the urethane desk part during the subsequent false twisting process is poor, the untwisting tension / twisting tension ratio becomes large, and fluff is likely to occur. Happens. Conversely, if the dynamic friction coefficient between the filament and the urethane exceeds 0.40, there is a problem that the yarn is easily broken due to the frictional resistance at the urethane desk. However, since it is difficult to stably measure the dynamic coefficient of friction between the filament and the urethane in the undrawn yarn state, in the present invention, the multifilament yarn is cold-drawn 1.65 times in advance, and the value measured thereafter is The coefficient of dynamic friction between the filament and urethane of the invention was used. In the present invention, extremely stable processing quality can be obtained by setting the filament-filament static friction coefficient and the filament-urethane dynamic friction coefficient in appropriate ranges.
このような本発明のマイクロファイバー用マルチフィラメント糸はポリエーテルを主成分とする油剤が製糸時に付与されていることが多いが、さらには該マルチフィラメント糸がプロピレンオキサイドとエチレンオキサイドとの共重合体からなる油剤が付着したものであり、該油剤の平均分子量が１０００〜７０００であるとともに油剤付着量が０．２〜３重量％であることが好ましい。より具体的な油剤成分としては、主成分が、プロピレンオキサイド（ＰＯ）とエチレンオキサイド（ＥＯ）との共重合体であって、平均分子量が１０００〜７０００、好ましくは２０００〜６０００の範囲で、ＰＯ／ＥＯ共重合重量比が２０／８０〜８０／２０、好ましくは３０／７０〜７０／３０の範囲である、ランダムあるいはブロック型の共重合体であることが好ましい。共重合体の平均分子量が１０００未満では熱安定性に乏しく、分解揮散して平滑性が不十分となる傾向にあり、またマルチフィラメント糸を摩擦仮撚する際に使用されるウレタンゴムの膨潤性が悪化するなど、工程安定性が低下する傾向にある。一方、平均分子量が８０００を越える場合には、油剤中に占める比率が高いので粘性アップにより平滑性が低下し、均一加工性が悪化する傾向にある。またエチレンオキサイドの共重合比が大きすぎても摩擦仮撚具に使用されるウレタンゴムの膨潤性が大きく、その後の工程安定性が悪化しやすい傾向にある。逆にエチレンオキサイドの共重合比が２０重量％未満の場合では自己乳化性が低下し、油剤を乳化するために必要な乳化剤が多くなるため仮撚加工性が低下する傾向にある。また油剤中における共重合体の含有量は、６０〜９０重量％が好ましい。 Such a multifilament yarn for microfiber of the present invention is often provided with an oil agent mainly composed of polyether at the time of yarn production. Further, the multifilament yarn is a copolymer of propylene oxide and ethylene oxide. Preferably, the oil agent has an average molecular weight of 1000 to 7000 and an oil agent adhesion amount of 0.2 to 3% by weight. As a more specific oil agent component, the main component is a copolymer of propylene oxide (PO) and ethylene oxide (EO), and the average molecular weight is 1000 to 7000, preferably 2000 to 6000. A random or block copolymer having a / EO copolymer weight ratio in the range of 20/80 to 80/20, preferably 30/70 to 70/30 is preferred. If the average molecular weight of the copolymer is less than 1000, the thermal stability is poor, the volatilization tends to be insufficient due to decomposition and volatilization, and the swelling property of urethane rubber used when frictional false twisting multifilament yarns However, the process stability tends to decrease. On the other hand, when the average molecular weight exceeds 8000, the ratio in the oil agent is high, so that the smoothness decreases due to the increase in viscosity, and the uniform processability tends to deteriorate. Moreover, even if the copolymerization ratio of ethylene oxide is too large, the swelling property of the urethane rubber used for the friction false twisting tool is large, and the subsequent process stability tends to be deteriorated. On the contrary, when the copolymerization ratio of ethylene oxide is less than 20% by weight, the self-emulsifying property is lowered, and the amount of emulsifier necessary for emulsifying the oil agent is increased, so that the false twisting property tends to be lowered. The content of the copolymer in the oil is preferably 60 to 90% by weight.
この他、油剤には平滑剤、濡れ剤、制電剤等を適宜、選択し配合して使用できる。平滑剤としては仮撚加工時のヒータータール対策として、鉱物油やエステルよりもエーテルエステル化合物の使用が好ましい。エーテルエステルとしては、高級アルコールにエチレンオキサイドを付加した後、高級脂肪酸でエステル化したものである。高級アルコールとしては、２−ヘチルヘキシルアルコール、ラウリルアルコール、６−ドデシルアルコール、オレイルアルコールなどが挙げられる。一方、高級脂肪酸としては、カプロン酸、カプリル酸、ラウリン酸、パルミチン酸、オレイン酸などが挙げられる。濡れ剤は、油剤を繊維糸条に均一に付着させるために使用するものであり、高級アルコールのエチレンオキサイド付加物等が使用できる。高級アルコールとしては、２−エチルヘキシルアルコール、６−ドデシルアルコール、セカンダリーアルコール（Ｃ１２〜Ｃ１４）などを好ましく用いることができる。制電剤としては公知のスルホン酸塩化合物、リン酸エステル塩、高級脂肪酸塩等を適宜組み合わせて使用できる。更に必要に応じて、フッソ系界面活性剤、ポリエーテル変性シリコーン、酸化防止剤など任意の成分を配合してもよい。 In addition, a smoothing agent, a wetting agent, an antistatic agent and the like can be appropriately selected and blended with the oil agent. As a smoothing agent, an ether ester compound is preferably used rather than mineral oil or ester as a countermeasure against heater tar during false twisting. The ether ester is obtained by adding ethylene oxide to a higher alcohol and then esterifying with a higher fatty acid. Examples of the higher alcohol include 2-hexylhexyl alcohol, lauryl alcohol, 6-dodecyl alcohol, and oleyl alcohol. On the other hand, examples of higher fatty acids include caproic acid, caprylic acid, lauric acid, palmitic acid, and oleic acid. The wetting agent is used for uniformly attaching the oil agent to the fiber yarn, and an ethylene oxide adduct of a higher alcohol can be used. As the higher alcohol, 2-ethylhexyl alcohol, 6-dodecyl alcohol, secondary alcohol (C 12 to C 14 ) and the like can be preferably used. As the antistatic agent, known sulfonate compounds, phosphate ester salts, higher fatty acid salts and the like can be used in appropriate combination. Furthermore, you may mix | blend arbitrary components, such as a fluorosurfactant, polyether modified silicone, antioxidant, as needed.
このような油剤を本発明のマルチフィラメント糸に付与する方法は特に限定されないが、通常油剤を濃度５〜２０重量％の水性エマルジョンとして付与するのが適当である。この際、付与する方法としては、オイリングローラー方式、ノズルを用いる方式等、従来採用されているいずれの方式であってもよい。 The method for applying such an oil to the multifilament yarn of the present invention is not particularly limited, but it is usually appropriate to apply the oil as an aqueous emulsion having a concentration of 5 to 20% by weight. At this time, any method conventionally employed, such as an oiling roller method, a method using a nozzle, or the like, may be used as the method of imparting.
本発明のマルチフィラメント糸に対する油剤の付与量（油剤有効成分として）は、マルチフィラメント糸重量を基準として０．２〜３重量％であることが好ましい。さらに好ましくは０．６〜１．５重量％の範囲とするのが適当ある。ここで各フィラメント糸に付着している油膜の平均厚さは、同一総繊度で同一付着量の場合、（１／フィラメント数）１／２に比例することが知られている。したがって、本発明のように１．５ｄｔｅｘ以下の極細繊維である場合、通常繊維に比べ、同一の油膜厚さを形成するためにはより多い油剤付与量とする必要があることになる。すなわち、マルチフィラメント糸の集束性、潤滑性、及び延伸仮撚加工時の加工安定性の点から、下限は従来糸条より多いことが好ましいのである。一方、付与量をあまりに多くしすぎると、マルチフィラメント糸を製糸する際の巻取性等の工程安定性には特に問題を生じないが、その後、延伸仮撚加工する際にヒーターガイドにヒータータールが付着して安定に仮撚加工することが困難になる傾向にある。 The amount of oil applied to the multifilament yarn of the present invention (as an oil agent active ingredient) is preferably 0.2 to 3% by weight based on the weight of the multifilament yarn. More preferably, the content is in the range of 0.6 to 1.5% by weight. Here, it is known that the average thickness of the oil film adhering to each filament yarn is proportional to (1 / filament number) 1/2 in the case of the same total fineness and the same adhering amount. Therefore, in the case of the ultrafine fiber of 1.5 dtex or less as in the present invention, it is necessary to make a larger amount of oil agent applied in order to form the same oil film thickness as compared with the normal fiber. That is, it is preferable that the lower limit is larger than that of the conventional yarn from the viewpoint of the converging property of the multifilament yarn, the lubricity, and the processing stability during drawing false twisting. On the other hand, if the applied amount is too large, there is no particular problem in process stability such as winding property when the multifilament yarn is produced, but the heater tar is then added to the heater guide during drawing false twisting. It tends to be difficult to adhere and stably false twisting.
このような本発明のマイクロファイバー加工用のマルチフィラメント糸は、安定して生産できるとともに、特にその後の仮撚り加工工程での毛羽や断糸の発生がほとんどなく、極めて安定した加工性を有する。また、加工によって最終的に得られるマイクロファイバー加工糸は、吸水性、風合、保温性に優れ、インナー衣料やアウター衣料に最適である。
分繊性及び工程安定性に優れた、均一なポリエステルモノフィラメントの原料である。
Such a multifilament yarn for microfiber processing according to the present invention can be produced stably and has very stable processability with little occurrence of fuzz and yarn breakage particularly in the subsequent false twisting step. Moreover, the microfiber processed yarn finally obtained by processing is excellent in water absorption, texture, and heat retention, and is optimal for inner clothing and outer clothing.
It is a raw material for uniform polyester monofilaments that has excellent splitting properties and process stability.
以下、実施例をあげて本発明をさらに具体的に説明する。なお、実施例における各評価項目は下記の方法で測定した。 Hereinafter, the present invention will be described more specifically with reference to examples. In addition, each evaluation item in an Example was measured with the following method.
（１）ＯＰＵ（油剤付着量）
あらかじめサンプルのマルチフィラメント糸を１．６５倍に冷延伸し、測定用の糸条とする。この糸条３ｇを、１０５℃×２時間乾燥し、重量ＷＡを測定する。次いで、アルキルベンゼンスルホン酸ソーダを主成分とする洗浄用水溶液３００ｃｃ中に糸条を浸漬し、４０℃にて超音波処理１０分間行う。さらに洗浄液を廃棄し、４０℃の温水により３０分流水洗浄後、室温にて風乾する。その後、糸条を１０５℃×２時間乾燥し、重量ＷＢを測定し、重量ＷＡとＷＢよりＯＰＵ（油剤付着量）を算出した。
ＯＰＵ（％）＝（（ＷＡ−ＷＢ）／ＷＢ）×１００
(1) OPU (Oil agent adhesion amount)
In advance, the sample multifilament yarn is cold-drawn 1.65 times to obtain a yarn for measurement. The yarn 3g, dried 105 ° C. × 2 hours, measuring the weight W A. Next, the yarn is immersed in 300 cc of an aqueous cleaning solution mainly composed of sodium alkylbenzene sulfonate and sonicated at 40 ° C. for 10 minutes. Further, the washing solution is discarded, washed with running water at 40 ° C. for 30 minutes, and then air-dried at room temperature. Thereafter, the yarn was dried 105 ° C. × 2 hours, weighed W B, was calculated OPU (oil adhesion amount) than the weight W A and W B.
OPU (%) = ((W A −W B ) / W B ) × 100
（２）フィラメント・フィラメント間静摩擦係数
マルチフィラメント糸をあらかじめ円筒の周りに、ラセン角±１５°で９．８ｃＮ（約１０ｇ）の巻き張力で前後に巻き付ける。この円筒は直径が５．１ｃｍ（２インチ）で、長さが７．６ｃｍ（３インチ）である。このあらかじめマルチフィラメント糸が巻きついた円筒の上に、マルチフィラメント糸を別に３０．５ｃｍ（１２インチ）とって掛ける。この時、後でかけたマルチフィラメント糸はあらかじめ円筒に巻きつけたマルチフィラメント糸の上層部にのっており、かつその巻き付け方向と平行になるようにする。マルチフィラメント糸の繊度（単位；ｄｔｅｘ）の０．０４倍の荷重（単位；ｇ）を後にかけたマルチフィラメント糸の一端にかけ、もう一方の端には、ストレインゲージを連結させる。円筒を０．００１６ｃｍ／秒の周速で１８０度回転させて、その時の張力を連続記録する。フィラメント・フィラメント間静摩擦係数（ｆ）は、円筒上を走行するベルトの摩擦に関する下記式より算出した。
ｆ＝（１／π）・（ｌｎ（Ｔ２／Ｔ１））
ここで、Ｔ２はピーク張力の平均値（ｎ＝２５）、Ｔ１はマルチフィラメント糸の一端にかけられた荷重により与えられる張力、ｌｎは自然対数記号である。なお、測定中に非可逆的な伸長、すなわち延伸が起った場合、そのサンプルのデータは使用しなかった。また測定雰囲気温度は２５℃とした。
(2) Coefficient of filament-filament static friction A multifilament yarn is wound around a cylinder in front and back at a spiral angle of ± 15 ° with a winding tension of 9.8 cN (about 10 g). The cylinder has a diameter of 5.1 cm (2 inches) and a length of 7.6 cm (3 inches). The multifilament yarn is hung on another 30.5 cm (12 inches) on the cylinder on which the multifilament yarn has been wound beforehand. At this time, the multifilament yarn applied later is placed on the upper layer portion of the multifilament yarn previously wound around the cylinder and is parallel to the winding direction. A load (unit: g) 0.04 times the fineness (unit: dtex) of the multifilament yarn is applied to one end of the multifilament yarn applied later, and a strain gauge is connected to the other end. The cylinder is rotated 180 degrees at a peripheral speed of 0.0016 cm / sec, and the tension at that time is continuously recorded. The filament-filament static friction coefficient (f) was calculated from the following equation regarding the friction of the belt running on the cylinder.
f = (1 / π) · (ln (T 2 / T 1 ))
Here, T 2 is an average value of peak tension (n = 25), T 1 is a tension applied by a load applied to one end of the multifilament yarn, and ln is a natural logarithm symbol. When irreversible stretching, that is, stretching occurred during the measurement, the data of the sample was not used. The measurement ambient temperature was 25 ° C.
（３）フィラメント・ウレタン間動摩擦係数
あらかじめサンプルのマルチフィラメント糸を１．６５倍に冷延伸し、測定用の糸条とする。この測定用糸条を用い、摩擦体として径３０ｍｍ、長さ５０ｍｍのウレタン製丸棒（硬度８８度）を上下に１０ストローク／分の速度で移動させながら、走行速度３００ｍ／分、接触角３０度、摩擦体入側張力１０ｇ（Ｔ１）で摩擦体出側の張力（Ｔ２）を測定し、下記式にて摩擦係数をもとめた。
ｆ＝（１／π）・（ｌｎ（Ｔ２／Ｔ１））
(3) Coefficient of dynamic friction between filament and urethane First, the multifilament yarn of the sample is cold-drawn 1.65 times to obtain a yarn for measurement. Using this measuring thread, a urethane round bar (hardness 88 degrees) having a diameter of 30 mm and a length of 50 mm as a friction body was moved up and down at a speed of 10 strokes / minute, while a traveling speed of 300 m / minute and a contact angle of 30 The friction body exit side tension (T 2 ) was measured at a friction body entry side tension of 10 g (T 1 ), and the coefficient of friction was determined using the following equation.
f = (1 / π) · (ln (T 2 / T 1 ))
（４）糸・金属接触体間動摩擦係数
あらかじめサンプルのマルチフィラメント糸を１．６５倍に冷延伸し、測定用の糸条とする。この測定用糸条を繊維・金属間走行摩擦測定機で、走行速度３００ｍ／分、摩擦体として径６０ｍｍの梨地クロムピンを用い、接触角１８０度、摩擦体入側張力１０ｇ（Ｔ１）で摩擦体出側の張力（Ｔ２）を測定し下記式にて摩擦係数をもとめた。
ｆ＝（１／π）・（ｌｎ（Ｔ２／Ｔ１））
(4) Coefficient of dynamic friction between yarn and metal contact body The sample multifilament yarn is previously cold drawn 1.65 times to obtain a yarn for measurement. This measurement yarn was rubbed with a fiber / metal running friction measuring machine using a satin chrome pin with a running speed of 300 m / min and a diameter of 60 mm as a friction body, with a contact angle of 180 degrees and a friction body entry side tension of 10 g (T 1 ). The tension (T 2 ) on the body exit side was measured, and the friction coefficient was determined by the following formula.
f = (1 / π) · (ln (T 2 / T 1 ))
（５）原糸の巻姿
マルチフィラメント糸の巻姿を肉眼判定し綾外れの状態を次の３段階で示した。
○；綾外れが殆ど認められない △；綾外れが少しあり ×；綾外れが多い
(5) Winding form of raw yarn The winding form of the multifilament yarn was visually judged and the state of traversing was shown in the following three stages.
○: Almost no treading is observed △; There is little twilling off; ×: Many twilling off
（６）工程上でのスラッジの発生状況
３週間仮撚加工後のヒーターガイド上に発生したスラッジ量の大小を肉眼判定し、１〜５級の判定を行った。１級が「不可」で、５級が「良」を示す。
(6) Generation state of sludge in the process The size of the sludge generated on the heater guide after the false twisting for 3 weeks was determined with the naked eye, and grades 1 to 5 were determined. Grade 1 is “impossible” and Grade 5 is “good”.
（７）加工毛羽
毛羽カウンター装置（東レ（株）製ＤＴ−１０４型）を用いて、得られた仮撚加工糸を５００ｍ／分の速度で２０分間連続測定し、発生毛羽数をカウントした。
(7) Processed fluff Using a fluff counter device (DT-104 type manufactured by Toray Industries, Inc.), the obtained false twisted yarn was continuously measured at a speed of 500 m / min for 20 minutes, and the number of generated fluff was counted.
［実施例１、２、比較例１〜４］
固有粘度が０．６４のポリエチレンテレフタレートを紡糸速度３１００ｍ／分で溶融紡糸し、その際、走行糸条に表１記載の組成の油剤ＡからＦを濃度１０重量％の水系エマルジョンとして純分付着量が１．０重量％となるように計量ノズルで付着させた後、インターレースノズルを用いて圧空圧０．５ｋｇ／ｃｍ２（０．０４９ＭＰａ）で空気交絡処理を施し巻き取った。得られた丸断面の１３７ｄｔｅｘ／１４４フィラメントの未延伸のマルチフィラメント糸の伸度は１５０％、Δｎは０．０４５、交絡数は７．５個／ｍであった。このマイクロファイバー用マルチフィラメント糸の物性を表２に示した。なお一部測定用には１．６５倍に冷延伸した８３ｄｔｅｘ／１４４フィラメントの糸条を用いた。
[Examples 1 and 2 and Comparative Examples 1 to 4]
Polyethylene terephthalate having an intrinsic viscosity of 0.64 is melt-spun at a spinning speed of 3100 m / min. At that time, the amount of pure component deposited on the running yarn as an aqueous emulsion having a concentration of 10% by weight of oils A to F having the composition shown in Table 1 After being attached with a measuring nozzle so that the amount becomes 1.0% by weight, an air entanglement treatment was performed with a pneumatic pressure of 0.5 kg / cm 2 (0.049 MPa) using an interlace nozzle, and the film was wound. The undrawn multifilament yarn of 137 dtex / 144 filaments having a round cross section obtained had an elongation of 150%, Δn of 0.045, and the number of entanglements was 7.5 / m. Table 2 shows the physical properties of the multifilament yarn for microfiber. For partial measurement, 83 dtex / 144 filament yarn cold-drawn 1.65 times was used.
得られた未延伸のマルチフィラメント糸を、延伸同時仮撚装置（糸条入側の非接触式第１ヒータの上段ヒータ長さを０．３ｍ、設定温度を４５０℃、熱処理時間を０．０１８秒とし、糸条出側の非接触式第１ヒータの下段ヒータ長さを０．７ｍ、設定温度を３００℃、熱処理時間を０．０４２秒とした）により、延伸倍率１．６５、加工速度８００ｍ／分で延伸仮撚加工を施し、８３ｄｔｅｘ／１４４フィラメントの延伸仮撚加工糸を得た。加工工程でのスラッジの発生状況、加工毛羽を表２に併せて示した。 The obtained undrawn multifilament yarn is drawn simultaneously with a false false twisting device (the upper heater length of the non-contact type first heater on the yarn entry side is 0.3 m, the set temperature is 450 ° C., and the heat treatment time is 0.018. Second, the lower heater length of the non-contact type first heater on the yarn output side is 0.7 m, the set temperature is 300 ° C., and the heat treatment time is 0.042 seconds), and the draw ratio is 1.65, the processing speed Stretch false twisting was performed at 800 m / min to obtain a stretch false twist yarn of 83 dtex / 144 filament. Table 2 shows the sludge generation state and the processed fluff in the processing step.
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| WO2012081564A1 (en) * | 2010-12-15 | 2012-06-21 | 花王株式会社 | Fiber-treating agent |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002146638A (en) * | 2000-11-02 | 2002-05-22 | Toray Ind Inc | Polyester raw fiber for false twisting |
| JP2003336174A (en) * | 2002-05-20 | 2003-11-28 | Teijin Ltd | Draw false twist texturing method of synthetic fiber |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2002146638A (en) * | 2000-11-02 | 2002-05-22 | Toray Ind Inc | Polyester raw fiber for false twisting |
| JP2003336174A (en) * | 2002-05-20 | 2003-11-28 | Teijin Ltd | Draw false twist texturing method of synthetic fiber |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012081564A1 (en) * | 2010-12-15 | 2012-06-21 | 花王株式会社 | Fiber-treating agent |
| JP2012127020A (en) * | 2010-12-15 | 2012-07-05 | Kao Corp | Fiber treating agent |
| CN103210138A (en) * | 2010-12-15 | 2013-07-17 | 花王株式会社 | Fiber-treating agent |
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