JP5350696B2 - Fabrics and textile products - Google Patents
Fabrics and textile products Download PDFInfo
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- JP5350696B2 JP5350696B2 JP2008180169A JP2008180169A JP5350696B2 JP 5350696 B2 JP5350696 B2 JP 5350696B2 JP 2008180169 A JP2008180169 A JP 2008180169A JP 2008180169 A JP2008180169 A JP 2008180169A JP 5350696 B2 JP5350696 B2 JP 5350696B2
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- 239000004744 fabric Substances 0.000 title claims description 82
- 239000004753 textile Substances 0.000 title claims description 7
- 239000000835 fiber Substances 0.000 claims description 79
- 229920000728 polyester Polymers 0.000 claims description 60
- 239000002131 composite material Substances 0.000 claims description 35
- 239000002759 woven fabric Substances 0.000 claims description 20
- 238000005259 measurement Methods 0.000 claims description 9
- 239000012510 hollow fiber Substances 0.000 claims description 5
- 238000009413 insulation Methods 0.000 claims description 4
- 239000002649 leather substitute Substances 0.000 claims description 3
- 230000001681 protective effect Effects 0.000 claims description 3
- 238000009940 knitting Methods 0.000 description 22
- 229920001410 Microfiber Polymers 0.000 description 18
- 229920000642 polymer Polymers 0.000 description 18
- 239000010410 layer Substances 0.000 description 17
- -1 alkylene glycols Chemical class 0.000 description 15
- 239000007864 aqueous solution Substances 0.000 description 10
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 9
- 238000004090 dissolution Methods 0.000 description 9
- 239000002202 Polyethylene glycol Substances 0.000 description 8
- 238000000034 method Methods 0.000 description 8
- 229920001223 polyethylene glycol Polymers 0.000 description 8
- 238000012545 processing Methods 0.000 description 7
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 6
- QQVIHTHCMHWDBS-UHFFFAOYSA-N isophthalic acid Chemical compound OC(=O)C1=CC=CC(C(O)=O)=C1 QQVIHTHCMHWDBS-UHFFFAOYSA-N 0.000 description 6
- 229920000747 poly(lactic acid) Polymers 0.000 description 6
- 239000004626 polylactic acid Substances 0.000 description 6
- 238000009987 spinning Methods 0.000 description 6
- MTHSVFCYNBDYFN-UHFFFAOYSA-N diethylene glycol Chemical compound OCCOCCO MTHSVFCYNBDYFN-UHFFFAOYSA-N 0.000 description 5
- 239000002121 nanofiber Substances 0.000 description 5
- 229920000139 polyethylene terephthalate Polymers 0.000 description 5
- 239000005020 polyethylene terephthalate Substances 0.000 description 5
- KKEYFWRCBNTPAC-UHFFFAOYSA-N Terephthalic acid Chemical compound OC(=O)C1=CC=C(C(O)=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-N 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 4
- 238000002425 crystallisation Methods 0.000 description 4
- 230000008025 crystallization Effects 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000002074 melt spinning Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 239000002904 solvent Substances 0.000 description 4
- OFOBLEOULBTSOW-UHFFFAOYSA-N Malonic acid Chemical compound OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 description 3
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- 239000003513 alkali Substances 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- 239000000975 dye Substances 0.000 description 3
- 239000012530 fluid Substances 0.000 description 3
- 230000004580 weight loss Effects 0.000 description 3
- 239000004952 Polyamide Substances 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 2
- 239000004793 Polystyrene Substances 0.000 description 2
- WNLRTRBMVRJNCN-UHFFFAOYSA-N adipic acid Chemical compound OC(=O)CCCCC(O)=O WNLRTRBMVRJNCN-UHFFFAOYSA-N 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- IISBACLAFKSPIT-UHFFFAOYSA-N bisphenol A Chemical compound C=1C=C(O)C=CC=1C(C)(C)C1=CC=C(O)C=C1 IISBACLAFKSPIT-UHFFFAOYSA-N 0.000 description 2
- WERYXYBDKMZEQL-UHFFFAOYSA-N butane-1,4-diol Chemical compound OCCCCO WERYXYBDKMZEQL-UHFFFAOYSA-N 0.000 description 2
- 125000002091 cationic group Chemical group 0.000 description 2
- 239000003086 colorant Substances 0.000 description 2
- 229920001577 copolymer Polymers 0.000 description 2
- 238000002788 crimping Methods 0.000 description 2
- 238000004043 dyeing Methods 0.000 description 2
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 2
- 238000005304 joining Methods 0.000 description 2
- JVTAAEKCZFNVCJ-UHFFFAOYSA-N lactic acid Chemical compound CC(O)C(O)=O JVTAAEKCZFNVCJ-UHFFFAOYSA-N 0.000 description 2
- BDAGIHXWWSANSR-UHFFFAOYSA-N methanoic acid Natural products OC=O BDAGIHXWWSANSR-UHFFFAOYSA-N 0.000 description 2
- 229920002647 polyamide Polymers 0.000 description 2
- 229920001707 polybutylene terephthalate Polymers 0.000 description 2
- 229920000573 polyethylene Polymers 0.000 description 2
- 229920002223 polystyrene Polymers 0.000 description 2
- 229920002215 polytrimethylene terephthalate Polymers 0.000 description 2
- YPFDHNVEDLHUCE-UHFFFAOYSA-N propane-1,3-diol Chemical compound OCCCO YPFDHNVEDLHUCE-UHFFFAOYSA-N 0.000 description 2
- CXMXRPHRNRROMY-UHFFFAOYSA-N sebacic acid Chemical compound OC(=O)CCCCCCCCC(O)=O CXMXRPHRNRROMY-UHFFFAOYSA-N 0.000 description 2
- 239000002356 single layer Substances 0.000 description 2
- 239000011734 sodium Substances 0.000 description 2
- 229910052708 sodium Inorganic materials 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000009941 weaving Methods 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- OSWFIVFLDKOXQC-UHFFFAOYSA-N 4-(3-methoxyphenyl)aniline Chemical compound COC1=CC=CC(C=2C=CC(N)=CC=2)=C1 OSWFIVFLDKOXQC-UHFFFAOYSA-N 0.000 description 1
- 229930185605 Bisphenol Natural products 0.000 description 1
- LSNNMFCWUKXFEE-UHFFFAOYSA-M Bisulfite Chemical compound OS([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-M 0.000 description 1
- 229920002292 Nylon 6 Polymers 0.000 description 1
- 239000001361 adipic acid Substances 0.000 description 1
- 235000011037 adipic acid Nutrition 0.000 description 1
- 229920003232 aliphatic polyester Polymers 0.000 description 1
- 239000012670 alkaline solution Substances 0.000 description 1
- 150000001450 anions Chemical class 0.000 description 1
- 239000003242 anti bacterial agent Substances 0.000 description 1
- 239000002216 antistatic agent Substances 0.000 description 1
- 239000012736 aqueous medium Substances 0.000 description 1
- 229920000229 biodegradable polyester Polymers 0.000 description 1
- 239000004622 biodegradable polyester Substances 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000007334 copolymerization reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000002781 deodorant agent Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 150000001991 dicarboxylic acids Chemical class 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 239000006081 fluorescent whitening agent Substances 0.000 description 1
- 235000019253 formic acid Nutrition 0.000 description 1
- 230000009477 glass transition Effects 0.000 description 1
- 150000002334 glycols Chemical class 0.000 description 1
- 239000012760 heat stabilizer Substances 0.000 description 1
- 239000003230 hygroscopic agent Substances 0.000 description 1
- 239000000077 insect repellent Substances 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 239000004310 lactic acid Substances 0.000 description 1
- 235000014655 lactic acid Nutrition 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000006224 matting agent Substances 0.000 description 1
- 239000003658 microfiber Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- KYTZHLUVELPASH-UHFFFAOYSA-N naphthalene-1,2-dicarboxylic acid Chemical compound C1=CC=CC2=C(C(O)=O)C(C(=O)O)=CC=C21 KYTZHLUVELPASH-UHFFFAOYSA-N 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- 239000005080 phosphorescent agent Substances 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 229920000233 poly(alkylene oxides) Polymers 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 230000009257 reactivity Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000002040 relaxant effect Effects 0.000 description 1
- 239000005871 repellent Substances 0.000 description 1
- 230000002940 repellent Effects 0.000 description 1
- 238000009991 scouring Methods 0.000 description 1
- IBBQVGDGTMTZRA-UHFFFAOYSA-N sodium;2-sulfobenzene-1,3-dicarboxylic acid Chemical compound [Na].OC(=O)C1=CC=CC(C(O)=O)=C1S(O)(=O)=O IBBQVGDGTMTZRA-UHFFFAOYSA-N 0.000 description 1
- 150000003609 titanium compounds Chemical class 0.000 description 1
- 238000004078 waterproofing Methods 0.000 description 1
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- Curtains And Furnishings For Windows Or Doors (AREA)
- Synthetic Leather, Interior Materials Or Flexible Sheet Materials (AREA)
- Woven Fabrics (AREA)
Description
本発明は、超極細繊維特有のソフトな風合いを呈するだけでなく優れた保温性をも有する布帛、および該布帛を用いてなる繊維製品に関する。 The present invention relates to a fabric that not only exhibits a soft texture peculiar to ultra-fine fibers but also has excellent heat retaining properties, and a fiber product using the fabric.
従来、ナノファイバーと称せられる超極細繊維は、超極細繊維特有のソフトな風合いを呈するため、衣料用途、インナー衣料、スポーツ衣料などの分野で、さかんに開発が行われている（例えば、特許文献１、特許文献２、特許文献３、特許文献４参照）。
しかしながら、超極細繊維で構成された布帛は、嵩高性に乏しく保温性が不十分であるという問題があった。
他方、中空繊維を用いた布帛は従来知られている（例えば、特許文献５参照）。
Conventionally, ultra-fine fibers called nanofibers have been developed extensively in the fields of apparel use, inner apparel, sports apparel, etc. in order to exhibit the soft texture unique to ultra-fine fibers (for example, patent documents) 1, Patent Document 2, Patent Document 3, and Patent Document 4).
However, the fabric composed of super extra fine fibers has a problem that it has poor bulkiness and insufficient heat retention.
On the other hand, fabrics using hollow fibers are conventionally known (see, for example, Patent Document 5).
本発明は上記の背景に鑑みなされたものであり、その目的は、超極細繊維特有のソフトな風合いを呈するだけでなく優れた保温性をも有する布帛、および該布帛を用いてなる繊維製品を提供することにある。 The present invention has been made in view of the above-described background, and an object of the present invention is to provide a fabric that not only exhibits a soft texture peculiar to ultra-fine fibers but also has excellent heat retention properties, and a fiber product using the fabric. It is to provide.
本発明者は上記の課題を達成するため鋭意検討した結果、単繊維径が１０００ｎｍ以下の超極細繊維と、中空繊維とで布帛を構成することにより、超極細繊維特有のソフトな風合いを呈するだけでなく優れた保温性をも有する布帛が得られることを見出し、さらに鋭意検討を重ねることにより本発明を完成するに至った。 As a result of intensive investigations to achieve the above-mentioned problems, the present inventor has a soft texture peculiar to ultrafine fibers by forming a fabric with ultrafine fibers having a single fiber diameter of 1000 nm or less and hollow fibers. In addition, the present inventors have found that a fabric having excellent heat retaining properties can be obtained, and have further intensively studied to complete the present invention.
かくして、本発明によれば「織物組織または編物組織を有する布帛であって、単繊維径１０〜１０００ｎｍのフィラメント数５００本以上の長繊維からなるポリエステルフィラメント糸Ａと単繊維径が１０００ｎｍより大の中空フィラメント糸Ｂとを含むことを特徴とする布帛。」が提供される。 Thus, according to the present invention, a “fabric having a woven or knitted structure, a polyester filament yarn A composed of long fibers having a single fiber diameter of 10 to 1000 nm and a filament number of 500 or more, and a single fiber diameter of greater than 1000 nm. A fabric comprising a hollow filament yarn B "is provided.
その際、布帛重量に対して、前記ポリエステルフィラメント糸Ａが２０重量％以上含まれ、かつ前記中空フィラメント糸Ｂが２０重量％以上含まれることが好ましい。また、前記ポリエステルフィラメント糸Ａが、海成分と島成分とからなる海島型複合繊維の海成分を溶解除去して得られた糸条であることが好ましい。また、中空フィラメント糸Ｂが中空率１０％以上のポリエステル中空糸であることが好ましい。 In that case, it is preferable that the said polyester filament yarn A is contained 20weight% or more with respect to the fabric weight, and the said hollow filament yarn B is contained 20weight% or more. Further, the polyester filament yarn A is preferably a yarn obtained by dissolving and removing the sea component of the sea-island type composite fiber composed of the sea component and the island component. The hollow filament yarn B is preferably a polyester hollow fiber having a hollow ratio of 10% or more.
本発明の布帛において、布帛が織物組織を有し、織物の経糸および／または緯糸に、前記ポリエステルフィラメント糸Ａとフィラメント糸Ｂとが交織されていることが好ましい。また、布帛が織物組織を有し、織物の経糸および緯糸のうち、どちらか一方に前記ポリエステルフィラメント糸Ａが含まれ、かつ他方に前記フィラメント糸Ｂが含まれ、かつ布帛が朱子組織を有することが好ましい。また、布帛が２層構造織物組織を有し、１層に前記ポリエステルフィラメント糸Ａが含まれ、かつ他層に前記フィラメント糸Ｂが含まれることが好ましい。また、布帛が３層以上の多層構造織物組織を有し、最表層または最裏層に前記ポリエステルフィラメント糸Ａが含まれることが好ましい。また、前記ポリエステルフィラメント糸Ａとフィラメント糸Ｂとが、両者で構成される複合糸として布帛に含まれることが好ましい。その際、複合糸が空気混繊糸、複合仮撚捲縮加工糸、およびカバリング糸からなる群より選択されるいずれかであることが好ましい。また、下記に定義する保温性αが１８％以上であることが好ましい。
２０℃の雰囲気温度中で１０ｃｍ四方の６５℃の熱源上に測定サンプルを置き、消費電力Ｗ１（ワット）と、同じ熱源で測定サンプルを置かない場合の消費電力Ｗ０（ワット）とから下式に基づいて保温性αを算出する。
保温性α＝（Ｗ０−Ｗ１）／Ｗ０×１００（％）
In the fabric of the present invention, the fabric preferably has a woven structure, and the polyester filament yarn A and the filament yarn B are interwoven with the warp and / or weft of the woven fabric. Further, the fabric has a woven fabric structure, one of the warp and weft of the woven fabric contains the polyester filament yarn A, the other contains the filament yarn B, and the fabric has a satin texture. Is preferred. Moreover, it is preferable that the fabric has a two-layer structure woven structure, the polyester filament yarn A is included in one layer, and the filament yarn B is included in another layer. Moreover, it is preferable that a fabric has a multilayer structure woven structure of three or more layers, and the polyester filament yarn A is included in the outermost layer or the outermost layer. The polyester filament yarn A and the filament yarn B are preferably included in the fabric as a composite yarn composed of both. At that time, the composite yarn is preferably any one selected from the group consisting of an air-mixed yarn, a composite false twist crimped yarn, and a covering yarn. Moreover, it is preferable that the heat retention (alpha) defined below is 18% or more.
Place the measurement sample on a 10cm square 65 ° C heat source in an ambient temperature of 20 ° C and use the following formula from the power consumption W1 (Watt) and the power consumption W0 (Watt) when no measurement sample is placed with the same heat source. Based on this, the heat retention α is calculated.
Thermal insulation α = (W0−W1) / W0 × 100 (%)
また、本発明によれば、前記の布帛を用いてなる、スポーツウェア、アウトドアウェア、レインコート、傘地、紳士衣服、婦人衣服、作業衣、防護服、人工皮革、履物、鞄、カーテン、防水シート、テント、カーシートの群より選ばれるいずれかの繊維製品が提供される。 Further, according to the present invention, sportswear, outdoorwear, raincoat, umbrella, men's clothing, women's clothing, work clothes, protective clothing, artificial leather, footwear, bags, curtains, waterproofing, comprising the above-described fabric. Any fiber product selected from the group of seats, tents and car seats is provided.
本発明によれば、超極細繊維特有のソフトな風合いを呈するだけでなく優れた保温性をも有する布帛、および該布帛を用いてなる繊維製品が得られる。 ADVANTAGE OF THE INVENTION According to this invention, the fabric which not only exhibits the soft texture peculiar to a super extra fine fiber but has the outstanding heat retention property, and the fiber product using this fabric are obtained.
以下、本発明の実施の形態について詳細に説明する。
まず、本発明で用いるポリエステルマルチフィラメント糸Ａはその単繊維径（単繊維の直径）が１０〜１０００ｎｍ（好ましくは１００〜８００ｎｍ、特に好ましくは５５０〜８００ｎｍ）であることが肝要である。かかる単繊維径を単糸繊度に換算すると、０．０００００１〜０．０１ｄｔｅｘに相当する。該単繊維径が１０００ｎｍを超える場合には、染色織物が超極細繊維特有のソフトな風合いを呈さず好ましくない。逆に、該単繊維径が１０ｎｍ未満の場合には繊維強度が低くなるため実用上好ましくない。ここで、単繊維の断面形状が丸断面以外の異型断面である場合には、外接円の直径を単繊維径とする。なお、単繊維径は、透過型電子顕微鏡で繊維の横断面を撮影することにより測定が可能である。
Hereinafter, embodiments of the present invention will be described in detail.
First, it is important that the polyester multifilament yarn A used in the present invention has a single fiber diameter (a single fiber diameter) of 10 to 1000 nm (preferably 100 to 800 nm, particularly preferably 550 to 800 nm). When this single fiber diameter is converted into a single yarn fineness, it corresponds to 0.000001 to 0.01 dtex. When the single fiber diameter exceeds 1000 nm, the dyed fabric does not exhibit a soft texture peculiar to ultrafine fibers, which is not preferable. On the other hand, when the single fiber diameter is less than 10 nm, the fiber strength is lowered, which is not preferable for practical use. Here, when the cross-sectional shape of the single fiber is an atypical cross section other than the round cross section, the diameter of the circumscribed circle is defined as the single fiber diameter. The single fiber diameter can be measured by photographing the cross section of the fiber with a transmission electron microscope.
前記ポリエステルフィラメント糸Ａにおいて、フィラメント数は特に限定されないが、超極細繊維特有の風合いを得る上で５００本以上（より好ましくは２０００〜１００００本）であることが好ましい。また、ポリエステルフィラメント糸Ａの総繊度（単繊維繊度とフィラメント数との積）としては、５〜１５０ｄｔｅｘの範囲内であることが好ましい。 In the polyester filament yarn A, the number of filaments is not particularly limited, but it is preferably 500 or more (more preferably 2000 to 10,000) in order to obtain a texture peculiar to ultrafine fibers. The total fineness of the polyester filament yarn A (the product of the single fiber fineness and the number of filaments) is preferably in the range of 5 to 150 dtex.
前記ポリエステルフィラメント糸Ａの繊維形態は特に限定されないが、長繊維（マルチフィラメント糸）であることが好ましい。単繊維の断面形状も特に限定されず、丸、三角、扁平、中空など公知の断面形状でよい。また、通常の空気加工、仮撚捲縮加工が施されていてもさしつかえない。 The fiber form of the polyester filament yarn A is not particularly limited, but is preferably a long fiber (multifilament yarn). The cross-sectional shape of the single fiber is not particularly limited, and may be a known cross-sectional shape such as a circle, a triangle, a flat shape, or a hollow shape. In addition, normal air processing and false twist crimping may be applied.
前記ポリエステルフィラメント糸Ａを形成するポリエステルはジカルボン酸成分とジグリコール成分とから製造される。ジカルボン酸成分としては、主としてテレフタル酸が用いられることが好ましく、ジグリコール成分としては主としてエチレングリコール、トリメチレングリコール及びテトラメチレングリコールから選ばれた１種以上のアルキレングリコールを用いることが好ましい。また、ポリエステルには、前記ジカルボン酸成分及びグリコール成分の他に第３成分を含んでいてもよい。該第３成分としては、カチオン染料可染性アニオン成分、例えば、ナトリウムスルホイソフタル酸；テレフタル酸以外のジカルボン酸、例えばイソフタル酸、ナフタレンジカルボン酸、アジピン酸、セバシン酸；及びアルキレングリコール以外のグリコール化合物、例えばジエチレングリコール、ポリエチレングリコール、ビスフェノールＡ、ビスフェノールスルフォンの１種以上を用いることができる。かかるポリエステルとしては、ポリ乳酸などの生分解性を有するポリエステル、マテリアルリサイクルまたはケミカルリサイクルされたポリエステルであってもよい。また、特開２００４−２７００９７号公報や特開２００４−２１１２６８号公報に記載されているような、特定のリン化合物およびチタン化合物を含む触媒を用いて得られたポリエステルでもよい。さらには、ポリ乳酸やステレオコンプレックスポリ乳酸などの脂肪族ポリエステルであってもよい。該ポリエステルポリマー中には、本発明の目的を損なわない範囲内で必要に応じて、微細孔形成剤、カチオン染料可染剤、着色防止剤、熱安定剤、蛍光増白剤、艶消し剤、着色剤、吸湿剤、無機微粒子が１種または２種以上含まれていてもよい。 The polyester forming the polyester filament yarn A is produced from a dicarboxylic acid component and a diglycol component. As the dicarboxylic acid component, terephthalic acid is preferably used mainly, and as the diglycol component, it is preferable to use one or more alkylene glycols selected from ethylene glycol, trimethylene glycol and tetramethylene glycol. Further, the polyester may contain a third component in addition to the dicarboxylic acid component and the glycol component. Examples of the third component include cationic dye dyeable anion components such as sodium sulfoisophthalic acid; dicarboxylic acids other than terephthalic acid such as isophthalic acid, naphthalenedicarboxylic acid, adipic acid, sebacic acid; and glycol compounds other than alkylene glycol. For example, one or more of diethylene glycol, polyethylene glycol, bisphenol A, and bisphenol sulfone can be used. Such polyester may be biodegradable polyester such as polylactic acid, material recycled or chemically recycled polyester. Moreover, the polyester obtained using the catalyst containing the specific phosphorus compound and titanium compound which are described in Unexamined-Japanese-Patent No. 2004-270097 and 2004-21268 may be sufficient. Furthermore, aliphatic polyesters such as polylactic acid and stereocomplex polylactic acid may be used. In the polyester polymer, a fine pore forming agent, a cationic dye dyeing agent, an anti-coloring agent, a heat stabilizer, a fluorescent whitening agent, a matting agent, as necessary within the range not impairing the object of the present invention, One or two or more colorants, hygroscopic agents, and inorganic fine particles may be contained.
また、前記ポリエステルフィラメント糸Ａが、海成分と島成分とからなる海島型複合繊維の海成分を溶解除去して得られた糸条であることが好ましい。例えばまず、下記のような海島型複合繊維用の海成分ポリマーと島成分ポリマーを用意する。 Further, the polyester filament yarn A is preferably a yarn obtained by dissolving and removing the sea component of the sea-island type composite fiber composed of the sea component and the island component. For example, first, the following sea component polymer and island component polymer for sea-island type composite fibers are prepared.
海成分ポリマーは、好ましくは島成分との溶解速度比が２００以上であればいかなるポリマーであってもよいが、特に繊維形成性の良好なポリエステル、ポリアミド、ポリスチレン、ポリエチレンなどが好ましい。例えば、アルカリ水溶液易溶解性ポリマーとしては、ポリ乳酸、超高分子量ポリアルキレンオキサイド縮合系ポリマー、ポリエチレングルコール系化合物共重合ポリエステル、ポリエチレングリコール系化合物と５−ナトリウムスルホン酸イソフタル酸の共重合ポリエステルが好適である。また、ナイロン６は、ギ酸溶解性があり、ポリスチレン・ポリエチレンはトルエンなど有機溶剤に非常によく溶ける。なかでも、アルカリ易溶解性と海島断面形成性とを両立させるため、ポリエステル系のポリマーとしては、５−ナトリウムスルホイソフタル酸６〜１２モル％と分子量４０００〜１２０００のポリエチレングルコールを３〜１０重量％共重合させた固有粘度が０．４〜０．６のポリエチレンテレフタレート系共重合ポリエステルが好ましい。ここで、５−ナトリウムイソフタル酸は親水性と溶融粘度向上に寄与し、ポリエチレングリコール（ＰＥＧ）は親水性を向上させる。なお、ＰＥＧは分子量が大きいほど、その高次構造に起因すると考えられる親水性増加効果が大きくなるが、反応性が悪くなってブレンド系になるため、耐熱性・紡糸安定性などの点から好ましくなくなる。また、共重合量が１０重量％以上になると、本来溶融粘度低下作用があるので、本発明の目的を達成することが困難になる。したがって、上記の範囲で、両成分を共重合することが好ましい。 The sea component polymer may be any polymer as long as the dissolution rate ratio with respect to the island component is 200 or more, but polyesters, polyamides, polystyrenes, polyethylenes, and the like having good fiber forming properties are particularly preferable. For example, as an easily soluble polymer in an alkaline aqueous solution, polylactic acid, an ultra-high molecular weight polyalkylene oxide condensation polymer, a polyethylene glycol compound copolymer polyester, a copolymer polyester of polyethylene glycol compound and 5-sodium sulfonic acid isophthalic acid may be used. Is preferred. Nylon 6 is soluble in formic acid, and polystyrene and polyethylene are very well soluble in organic solvents such as toluene. Among them, in order to achieve both easy alkali solubility and sea-island cross-section formability, the polyester-based polymer is 3 to 10% by weight of polyethylene glycol having 6 to 12 mol% of 5-sodium sulfoisophthalic acid and a molecular weight of 4000 to 12000. % Copolymerized polyethylene terephthalate copolymer polyester having an intrinsic viscosity of 0.4 to 0.6 is preferred. Here, 5-sodium isophthalic acid contributes to improving hydrophilicity and melt viscosity, and polyethylene glycol (PEG) improves hydrophilicity. PEG has a higher hydrophilicity effect, which is thought to be due to its higher order structure, as the molecular weight increases, but it is preferable from the viewpoints of heat resistance and spinning stability because the reactivity becomes poor and a blend system is formed. Disappear. On the other hand, when the copolymerization amount is 10% by weight or more, it is difficult to achieve the object of the present invention because of its inherently low melt viscosity. Therefore, it is preferable to copolymerize both components within the above range.
一方、島成分ポリマーは、海成分との溶解速度差があればいかなるポリエステルポリマーであってもよいが、前記のように繊維形成性のポリエチレンテレフタレートやポリトリメチレンテレフタレート、ポリブチレンテレフタレート、ステレオコンプレックスポリ乳酸、ポリ乳酸、第３成分を共重合させたポリエステルなどのポリエステルが好ましい。 On the other hand, the island component polymer may be any polyester polymer as long as there is a difference in dissolution rate from the sea component. However, as described above, the fiber-forming polyethylene terephthalate, polytrimethylene terephthalate, polybutylene terephthalate, stereocomplex poly Polyester such as lactic acid, polylactic acid, polyester obtained by copolymerizing the third component is preferred.
上記の海成分ポリマーと島成分ポリマーからなる海島型複合繊維は、溶融紡糸時における海成分の溶融粘度が島成分ポリマーの溶融粘度よりも大きいことが好ましい。かかる関係にある場合には、海成分の複合重量比率が４０％未満と少なくなっても、島同士が接合したり、島成分の大部分が接合して海島型複合繊維とは異なるものになり難い。 The sea-island composite fiber composed of the sea component polymer and the island component polymer preferably has a sea component melt viscosity higher than that of the island component polymer during melt spinning. In such a relationship, even if the composite weight ratio of the sea component is less than 40%, the islands are joined together, or the majority of the island components are joined to be different from the sea-island type composite fiber. hard.
好ましい溶融粘度比（海／島）は、１．１〜２．０、特に１．３〜１．５の範囲である。この比が１．１倍未満の場合には溶融紡糸時に島成分が接合しやすくなり、一方２．０倍を越える場合には、粘度差が大きすぎるために紡糸調子が低下しやすい。 A preferred melt viscosity ratio (sea / island) is in the range of 1.1 to 2.0, especially 1.3 to 1.5. If this ratio is less than 1.1 times, the island components are likely to be joined during melt spinning, whereas if it exceeds 2.0 times, the viscosity difference is too large and the spinning tone tends to be lowered.
次に島数は、多いほど海成分を溶解除去して極細繊維を製造する場合の生産性が高くなるので１００以上（より好ましくは３００〜１０００）であることが好ましい。なお、島数があまりに多くなりすぎると紡糸口金の製造コストが高くなるだけでなく、加工精度自体も低下しやすくなるので１００００以下とするのが好ましい。 Next, the number of islands is preferably 100 or more (more preferably 300 to 1000) because the productivity increases when the ultrafine fibers are produced by dissolving and removing sea components as the number of islands increases. If the number of islands is too large, not only the production cost of the spinneret increases, but also the processing accuracy itself tends to decrease.
次に、島成分の径（直径）は、１０〜１０００ｎｍ（好ましくは１００〜８００ｎｍ）の範囲とする必要がある。島成分の径を該範囲内とすることにより、最終的に得られる織物に、単繊維径（単繊維の直径）が１０〜１０００ｎｍのマルチフィラメント糸が含まれることになる。ここで、島成分の断面形状が丸断面以外の異型断面である場合には、外接円の直径を島成分の径とする。なお、島成分の径（直径）は、海島型複合繊維の海成分をアルカリ水溶液で溶解除去したのち、透過型電子顕微鏡で繊維の横断面を撮影することにより測定が可能である。 Next, the diameter (diameter) of the island component needs to be in the range of 10 to 1000 nm (preferably 100 to 800 nm). By setting the diameter of the island component within the range, the finally obtained woven fabric includes a multifilament yarn having a single fiber diameter (single fiber diameter) of 10 to 1000 nm. Here, when the cross-sectional shape of the island component is an atypical cross-section other than the round cross-section, the diameter of the circumscribed circle is the diameter of the island component. In addition, the diameter (diameter) of the island component can be measured by dissolving and removing the sea component of the sea-island type composite fiber with an alkaline aqueous solution and then photographing the cross section of the fiber with a transmission electron microscope.
溶融紡糸に用いられる紡糸口金としては、島成分を形成するための中空ピン群や微細孔群を有するものなど任意のものを用いることができる。例えば中空ピンや微細孔より押し出された島成分とその間を埋める形で流路を設計されている海成分流とを合流し、これを圧縮することにより海島断面形成がなされるいかなる紡糸口金でもよい。 As the spinneret used for melt spinning, any one such as a hollow pin group for forming an island component or a group having a fine hole group can be used. For example, any spinneret that forms a cross section of the sea island by joining the island component extruded from the hollow pin or the fine hole and the sea component flow designed to fill the gap between the sea component flow may be used. .
吐出された海島型断面複合繊維は、冷却風によって固化され、好ましくは４００〜６０００ｍ／分で溶融紡糸された後に巻き取られる。得られた未延伸糸は、別途延伸工程をとおして所望の強度・伸度・熱収縮特性を有する複合繊維とするか、あるいは、一旦巻き取ることなく一定速度でローラーに引き取り、引き続いて延伸工程をとおした後に巻き取る方法のいずれでも構わない。 The discharged sea-island type cross-section composite fiber is solidified by cooling air, and is preferably wound after being melt-spun at 400 to 6000 m / min. The obtained undrawn yarn is made into a composite fiber having desired strength, elongation, and heat shrinkage properties through a separate drawing process, or is taken up by a roller at a constant speed without being wound once, and subsequently drawn. Any of the methods of winding after passing through may be used.
ここで、特に微細な島径を有する海島型複合繊維を高効率で製造するために、通常のいわゆる配向結晶化を伴うネック延伸（配向結晶化延伸）に先立って、繊維構造は変化させないで繊維径のみを極細化する流動延伸工程を採用することが好ましい。流動延伸を容易とするため、熱容量の大きい水媒体を用いて繊維を均一に予熱し、低速で延伸することが好ましい。このようにすることにより延伸時に流動状態を形成しやすくなり、繊維の微細構造の発達を伴わずに容易に延伸することができる。このプロセスでは、特に海成分および島成分が共にガラス転移温度１００℃以下のポリマーであることが好ましく、なかでもポリエチレンテレフタレート、ポリブチレンテレフタレート、ポリ乳酸、ポリトリメチレンテレフタレート等のポリエステルに好適である。具体的には６０〜１００℃、好ましくは６０〜８０℃の範囲の温水バスに浸漬して均一加熱を施し、延伸倍率は１０〜３０倍、供給速度は１〜１０ｍ／分、巻取り速度は３００ｍ／分以下、特に１０〜３００ｍ／分の範囲で実施することが好ましい。予熱温度不足および延伸速度が速すぎる場合には、高倍率延伸を達成することができなくなる。 Here, in order to produce a sea-island type composite fiber having a particularly fine island diameter with high efficiency, the fiber structure is not changed prior to neck stretching (orientation crystallization stretching) with ordinary so-called orientation crystallization. It is preferable to employ a fluid stretching process in which only the diameter is extremely reduced. In order to facilitate fluid drawing, it is preferable to preheat the fiber uniformly using an aqueous medium having a large heat capacity and draw at a low speed. By doing so, it becomes easy to form a fluid state at the time of stretching, and it can be easily stretched without development of the fine structure of the fiber. In this process, both the sea component and the island component are preferably polymers having a glass transition temperature of 100 ° C. or less, and particularly suitable for polyesters such as polyethylene terephthalate, polybutylene terephthalate, polylactic acid, and polytrimethylene terephthalate. Specifically, it is immersed in a hot water bath in the range of 60 to 100 ° C., preferably 60 to 80 ° C., and uniformly heated, the draw ratio is 10 to 30 times, the supply speed is 1 to 10 m / min, and the winding speed is It is preferable to carry out in the range of 300 m / min or less, particularly 10 to 300 m / min. If the preheating temperature is insufficient and the stretching speed is too fast, high-strength stretching cannot be achieved.
得られた流動状態で延伸された延伸糸は、その強伸度などの機械的特性を向上させるため、定法にしたがって６０〜２２０℃の温度で配向結晶化延伸する。該延伸条件がこの範囲外の温度では、得られる繊維の物性が不十分なものとなる。なお、この延伸倍率は、溶融紡糸条件、流動延伸条件、配向結晶化延伸条件などによって変わってくるが、該配向結晶化延伸条件で延伸可能な最大延伸倍率の０．６〜０．９５倍で延伸すればよい。 The drawn yarn drawn in the fluidized state is oriented, crystallized and drawn at a temperature of 60 to 220 ° C. in accordance with a conventional method in order to improve mechanical properties such as the strength and elongation. If the drawing conditions are outside this range, the properties of the resulting fiber will be insufficient. The draw ratio varies depending on the melt spinning conditions, flow stretching conditions, orientation crystallization stretching conditions, etc., but is 0.6 to 0.95 times the maximum draw ratio that can be stretched under the orientation crystallization stretching conditions. What is necessary is just to extend | stretch.
かくして得られた海島型複合繊維において、その海島複合重量比率（海：島）は、４０：６０〜５：９５の範囲が好ましく、特に３０：７０〜１０：９０の範囲が好ましい。かかる範囲であれば、島間の海成分の厚みを薄くすることができ、海成分の溶解除去が容易となり、島成分の極細繊維への転換が容易になるので好ましい。ここで海成分の割合が４０％を越える場合には海成分の厚みが厚くなりすぎ、一方５％未満の場合には海成分の量が少なくなりすぎて、島間に接合が発生しやすくなる。 In the sea-island type composite fiber thus obtained, the sea-island composite weight ratio (sea: island) is preferably in the range of 40:60 to 5:95, and particularly preferably in the range of 30:70 to 10:90. Within such a range, the thickness of the sea component between the islands can be reduced, the sea component can be easily dissolved and removed, and the conversion of the island component into ultrafine fibers is facilitated. Here, when the proportion of the sea component exceeds 40%, the thickness of the sea component becomes too thick. On the other hand, when the proportion is less than 5%, the amount of the sea component becomes too small, and joining between the islands easily occurs.
また、前記の海島型複合繊維において、その島間の海成分厚みが５００ｎｍ以下、特に２０〜２００ｎｍの範囲が適当であり、該厚みが５００ｎｍを越える場合には、該厚い海成分を溶解除去する間に島成分の溶解が進むため、島成分間の均質性が低下するだけでなく、毛羽やピリングなど着用時の欠陥や染め斑も発生しやすくなる。 In the sea-island type composite fiber, the thickness of the sea component between the islands is 500 nm or less, particularly 20 to 200 nm, and when the thickness exceeds 500 nm, the thick sea component is dissolved and removed. In addition, since the island components are dissolved, not only the homogeneity between the island components is lowered, but also defects such as fuzz and pilling and dyeing spots are likely to occur.
次いで、該海島型複合繊維にアルカリ水溶液処理を施し、海島型複合繊維の海成分をアルカリ水溶液で溶解除去することにより、海島型複合繊維フィラメント糸を単繊維径が１０〜１０００ｎｍのポリエステルマルチフィラメント糸Ａとする。その際、アルカリ水溶液処理の条件としては、濃度３〜４％のＮａＯＨ水溶液を使用し５５〜６５℃の温度で処理するとよい。また、アルカリ水溶液処理は、織物を織成する前でもよいが、織物を織成した後のほうが好ましい。 Next, the sea-island type composite fiber is subjected to an alkaline aqueous solution treatment, and sea components of the sea-island type composite fiber are dissolved and removed with an alkaline aqueous solution, whereby the sea-island type composite fiber filament yarn is a polyester multifilament yarn having a single fiber diameter of 10 to 1000 nm. A. At that time, the alkaline aqueous solution treatment may be performed at a temperature of 55 to 65 ° C. using a 3 to 4% NaOH aqueous solution. The alkaline aqueous solution treatment may be performed before weaving the fabric, but is preferably performed after weaving the fabric.
一方、中空フィラメント糸Ｂは中空率１％以上（好ましくは１０％以上、特に好ましくは１５〜５０％）であることが肝要である。該中空率が１％未満では十分な保温性が得られず好ましくない。 On the other hand, it is important that the hollow filament yarn B has a hollowness of 1% or more (preferably 10% or more, particularly preferably 15 to 50%). If the hollow ratio is less than 1%, sufficient heat retention cannot be obtained, which is not preferable.
かかる中空フィラメント糸Ｂにおいて、単繊維径が１０００ｎｍより大（好ましくは１．１〜２０μｍ）であることが肝要である。該単繊維径が１０００ｎｍ以下であると、中空フィラメント糸Ｂの製造が困難となるおそれがある。ここで、単繊維の断面形状が丸断面以外の異型断面である場合には、外接円の直径を単繊維径とする。なお、単繊維径は、前記と同様、透過型電子顕微鏡で繊維の横断面を撮影することにより測定が可能である。 In the hollow filament yarn B, it is important that the single fiber diameter is larger than 1000 nm (preferably 1.1 to 20 μm). If the single fiber diameter is 1000 nm or less, the production of the hollow filament yarn B may be difficult. Here, when the cross-sectional shape of the single fiber is an atypical cross section other than the round cross section, the diameter of the circumscribed circle is defined as the single fiber diameter. The single fiber diameter can be measured by photographing the cross section of the fiber with a transmission electron microscope, as described above.
前記中空フィラメント糸Ｂにおいて、フィラメント数は特に限定されないが、１〜３００本の範囲内であることが好ましい。また、かかるフィラメント糸Ｂの繊維形態は特に限定されないが、長繊維（マルチフィラメント糸）であることが好ましい。単繊維の断面形状も特に限定されず、丸、三角、扁平、中空など公知の断面形状でよい。また、通常の空気加工、仮撚捲縮加工が施されていてもさしつかえない。 In the hollow filament yarn B, the number of filaments is not particularly limited, but is preferably in the range of 1 to 300. The fiber form of the filament yarn B is not particularly limited, but is preferably a long fiber (multifilament yarn). The cross-sectional shape of the single fiber is not particularly limited, and may be a known cross-sectional shape such as a circle, a triangle, a flat shape, or a hollow shape. In addition, normal air processing and false twist crimping may be applied.
また、中空フィラメント糸Ｂを形成するポリマーとしては、ポリエステルフィラメント糸Ａと同様のポリエステルが好ましいが、ポリアミドなど繊維形成性ポリマーでもよし天然繊維でもよい。 Further, as the polymer forming the hollow filament yarn B, the same polyester as the polyester filament yarn A is preferable, but a fiber-forming polymer such as polyamide or a natural fiber may be used.
本発明の布帛は、例えば以下の製造方法により製造することができる。まず、前記ポリエステルフィラメント糸Ａ（またはポリエステルフィラメント糸Ａ用海島型複合繊維フィラメント糸）と中空フィラメント糸Ｂ（複数種類でもよい。）と、必要に応じてその他の繊維を用いて布帛（織編物）を織編成した後、必要に応じて、該布帛にアルカリ水溶液処理を施し、海島型複合繊維の海成分をアルカリ水溶液で溶解除去することにより、海島型複合繊維フィラメント糸を単繊維径が１０〜１０００ｎｍのポリエステルマルチフィラメント糸Ａとするとよい。その際、前記ポリエステルフィラメント糸Ａの布帛の全重量に対する重量割合は２０重量％以上（好ましくは５０〜８０重量％）の範囲内であることが好ましい。一方、フィラメント糸Ｂの布帛の全重量に対する重量割合は、２０重量％以上（好ましくは５０〜８０重量％）であることが好ましい。また、布帛に他の繊維が含まれる場合、かかる他の繊維としては、ポリエステルマルチフィラメント糸Ａと同様のポリエステルからなるポリエステル繊維が好ましい。 The fabric of the present invention can be produced, for example, by the following production method. First, a fabric (woven or knitted fabric) using the polyester filament yarn A (or sea island type composite fiber filament yarn for polyester filament yarn A) and hollow filament yarn B (multiple types may be used) and other fibers as necessary. After knitting the fabric, if necessary, the fabric is treated with an alkaline aqueous solution, and the sea component of the sea-island type composite fiber is dissolved and removed with an aqueous alkaline solution, whereby the sea-island type composite fiber filament yarn has a single fiber diameter of 10 to 10. A 1000-nm polyester multifilament yarn A is preferred. At that time, the weight ratio of the polyester filament yarn A to the total weight of the fabric is preferably 20% by weight or more (preferably 50 to 80% by weight). On the other hand, the weight ratio of the filament yarn B to the total weight of the fabric is preferably 20% by weight or more (preferably 50 to 80% by weight). When the fabric contains other fibers, the other fibers are preferably polyester fibers made of the same polyester as the polyester multifilament yarn A.
また、布帛の織編組織は特に限定されず、織物の織組織は、平織、斜文織、朱子織等の三原組織、変化組織、変化斜文織等の変化組織、たて二重織、よこ二重織等の片二重組織、たてビロード、タオル、ベロア等のたてパイル織、別珍、よこビロード、ベルベット、コール天等のよこパイル織などが例示される。なお、これらの織組織を有する織物は、レピア織機やエアージェット織機など通常の織機を用いて通常の方法により製織することができる。層数も特に限定されず単層でもよいし２層以上の多層構造を有する織物でもよい。 Further, the woven or knitted structure of the fabric is not particularly limited, and the woven structure of the woven fabric is a three-layer structure such as plain weave, twill weave, satin weave, etc. Examples include single-ply weaves such as weft double weave, warp pile weaves such as warp velvet, towels, and velours, and weave pile weaves such as benjin, weft velvet, velvet, and cole. In addition, the textile fabric which has these woven structures can be woven by a normal method using normal looms, such as a rapier loom and an air jet loom. The number of layers is not particularly limited and may be a single layer or a woven fabric having a multilayer structure of two or more layers.
編物の種類は、よこ編物であってもよいしたて編物であってもよい。よこ編組織としては、平編、ゴム編、両面編、パール編、タック編、浮き編、片畔編、レース編、添え毛編等が好ましく例示され、たて編組織としては、シングルデンビー編、シングルアトラス編、ダブルコード編、ハーフトリコット編、裏毛編、ジャガード編等が好ましく例示される。なお、製編は、丸編機、横編機、トリコット編機、ラッシェル編機等など通常の編機を用いて通常の方法により製編することができる。層数も特に限定されず単層でもよいし２層以上の多層構造を有する編物でもよい。 The type of knitted fabric may be a weft knitted fabric or a newly knitted fabric. Preferred examples of the weft knitting structure include flat knitting, rubber knitting, double-sided knitting, pearl knitting, tuck knitting, float knitting, one-sided knitting, lace knitting, bristle knitting, and the like. Preferred examples include single atlas knitting, double cord knitting, half tricot knitting, back hair knitting, jacquard knitting and the like. The knitting can be knitted by a normal method using a normal knitting machine such as a circular knitting machine, a flat knitting machine, a tricot knitting machine, and a Raschel knitting machine. The number of layers is not particularly limited and may be a single layer or a knitted fabric having a multilayer structure of two or more layers.
ここで、布帛が織物組織を有し、織物の経糸および／または緯糸に、前記ポリエステルフィラメント糸Ａとフィラメント糸Ｂとが交織されていることが好ましい。すなわち、織物の経糸および／または緯糸において、前記ポリエステルフィラメント糸Ａとフィラメント糸Ｂとが一本交互、複数本交互、１本：複数本交互、複数本：１本交互に規則的に配されていることが好ましい。また、布帛が織物組織を有し、織物の経糸および緯糸のうち、どちらか一方に前記ポリエステルフィラメント糸Ａが含まれ、かつ他方に前記フィラメント糸Ｂが含まれ、かつ布帛が朱子組織を有することが好ましい。このような朱子組織を採用すると、布帛の表裏どちらか一方の面において、ポリエステルフィラメント糸Ａが多く露出するため、該面が、超極細繊維特有のソフトなタッチを呈し好ましい。また、布帛が２層構造織物組織を有し、１層に前記ポリエステルフィラメント糸Ａが含まれ、かつ他層に前記フィラメント糸Ｂが含まれることが好ましい。また、布帛が３層以上の多層構造織物組織を有し、最表層または最裏層に前記ポリエステルフィラメント糸Ａが含まれることが好ましい。また、前記ポリエステルフィラメント糸Ａとフィラメント糸Ｂとが、両者で構成される複合糸として布帛に含まれることが好ましい。その際、複合糸が空気混繊糸、複合仮撚捲縮加工糸、およびカバリング糸からなる群より選択されるいずれかであることが好ましい。 Here, it is preferable that the fabric has a woven structure, and the polyester filament yarn A and the filament yarn B are woven into warp and / or weft of the fabric. That is, in the warp and / or weft of the woven fabric, the polyester filament yarn A and the filament yarn B are regularly and alternately arranged one by one, plural by one, one by plural, one by plural. Preferably it is. Further, the fabric has a woven fabric structure, one of the warp and weft of the woven fabric contains the polyester filament yarn A, the other contains the filament yarn B, and the fabric has a satin texture. Is preferred. When such a satin structure is employed, a large amount of the polyester filament yarn A is exposed on either one of the front and back surfaces of the fabric, and this surface is preferable because it exhibits a soft touch unique to ultrafine fibers. Moreover, it is preferable that the fabric has a two-layer structure woven structure, the polyester filament yarn A is included in one layer, and the filament yarn B is included in another layer. Moreover, it is preferable that a fabric has a multilayer structure woven structure of three or more layers, and the polyester filament yarn A is included in the outermost layer or the outermost layer. The polyester filament yarn A and the filament yarn B are preferably included in the fabric as a composite yarn composed of both. At that time, the composite yarn is preferably any one selected from the group consisting of an air-mixed yarn, a composite false twist crimped yarn, and a covering yarn.
また、かかる布帛には、常法の染色工、精練、リラックス、プレセット、ファイナルセットなどの各種加工を施してもよい。さらには、起毛加工、撥水加工、カレンダー加工、紫外線遮蔽あるいは制電剤、抗菌剤、消臭剤、防虫剤、蓄光剤、再帰反射剤、マイナスイオン発生剤等の機能を付与する各種加工を付加適用してもよい。 In addition, the fabric may be subjected to various processes such as conventional dyeing, scouring, relaxing, pre-setting, and final setting. In addition, various processing that provides functions such as brushed processing, water repellent processing, calendar processing, ultraviolet shielding or antistatic agent, antibacterial agent, deodorant agent, insect repellent agent, phosphorescent agent, retroreflective agent, negative ion generator, etc. Additional applications may be applied.
かくして得られた布帛において、前記フィラメント糸Ｂが含まれることにより、優れた保温性を有する。その際、下記に定義する保温性αが１８％以上であることが好ましい。
２０℃の雰囲気温度中で１０ｃｍ四方の６５℃の熱源上に測定サンプルを置き、消費電力Ｗ１（ワット）と、同じ熱源で測定サンプルを置かない場合の消費電力Ｗ０（ワット）とから下式に基づいて保温性αを算出する。
保温性α＝（Ｗ０−Ｗ１）／Ｗ０×１００（％）
In the fabric thus obtained, the filament yarn B is contained, thereby having excellent heat retention. In that case, it is preferable that the heat retention (alpha) defined below is 18% or more.
Place the measurement sample on a 10cm square 65 ° C heat source in an ambient temperature of 20 ° C and use the following formula from the power consumption W1 (Watt) and the power consumption W0 (Watt) when no measurement sample is placed with the same heat source. Based on this, the heat retention α is calculated.
Thermal insulation α = (W0−W1) / W0 × 100 (%)
また、かかる布帛には、単繊維径１０〜１０００ｎｍのポリエステルフィラメント糸Ａが含まれているので、超極細繊維特有のソフトな風合いを呈する。 Moreover, since this fabric contains the polyester filament yarn A having a single fiber diameter of 10 to 1000 nm, it exhibits a soft texture peculiar to ultrafine fibers.
また、かかる布帛が織物である場合には、経糸のカバーファクターおよび緯糸のカバーファクターがいずれも５００〜５０００（さらに好ましくは、５００〜２５００）であると布帛に防風性が付加され好ましい。なお、本発明でいうカバーファクターＣＦは下記の式により表されるものである。
経糸カバーファクターＣＦｐ＝（ＤＷｐ／１．１）１／２×ＭＷｐ
緯糸カバーファクターＣＦｆ＝（ＤＷｆ／１．１）１／２×ＭＷｆ
［ＤＷｐは経糸総繊度（ｄｔｅｘ）、ＭＷｐは経糸織密度（本／２．５４ｃｍ）、ＤＷｆは緯糸総繊度（ｄｔｅｘ）、ＭＷｆは緯糸織密度（本／２．５４ｃｍ）である。］
When the fabric is a woven fabric, it is preferable that the warp cover factor and the weft cover factor are both 500 to 5000 (more preferably, 500 to 2500) because wind resistance is added to the fabric. The cover factor CF in the present invention is represented by the following formula.
Warp cover factor CF p = (DWp / 1.1) 1/2 × MWp
Weft cover factor CF f = (DWf / 1.1) 1/2 × MWf
[DW p is the total warp fineness (dtex), MW p is the warp weave density (main / 2.54 cm), DW f is the total weft fineness (dtex), and MW f is the weft weave density (main /2.54 cm) . ]
次に、本発明の繊維製品は、前記の布帛を用いてなる、スポーツウェア、アウトドアウェア、レインコート、傘地、紳士衣服、婦人衣服、作業衣、防護服、人工皮革、履物、鞄、カーテン、防水シート、テント、カーシートの群より選ばれるいずれかの繊維製品である。かかる繊維製品は前記の布帛を用いているので、超極細繊維特有のソフトな風合いを呈するだけでなく、優れた保温性を有する。 Next, the textile product of the present invention is a sportswear, outdoor wear, raincoat, umbrella, men's clothing, women's clothing, work clothing, protective clothing, artificial leather, footwear, heels, curtains using the above-mentioned fabric. , Any textile product selected from the group of waterproof sheets, tents and car seats. Since such a textile product uses the above-mentioned fabric, it has not only a soft texture peculiar to ultrafine fibers but also excellent heat retention.
次に本発明の実施例及び比較例を詳述するが、本発明はこれらによって限定されるものではない。なお、実施例中の各測定項目は下記の方法で測定した。 Next, although the Example and comparative example of this invention are explained in full detail, this invention is not limited by these. In addition, each measurement item in an Example was measured with the following method.
＜溶解速度＞海・島ポリマーの各々０．３Φ−０．６L×２４Hの口金にて１０００〜２０００ｍ／分の紡糸速度で糸を巻き取りし、さらに残留伸度が３０〜６０％の範囲になるように延伸して、８４ｄｔｅｘ／２４ｆｉｌのマルチフィラメントを作製した。これを各溶剤にて溶解しようとする温度で浴比１００にて溶解時間と溶解量から、減量速度を算出した。 <Dissolution rate> The sea and island polymers are each wound up at a spinning speed of 1000 to 2000 m / min with a 0.3Φ-0.6L × 24H die, and the residual elongation is in the range of 30 to 60%. Then, an 84 dtex / 24 fil multifilament was produced. The weight loss rate was calculated from the dissolution time and the dissolution amount at a bath ratio of 100 at a temperature at which the solvent was dissolved in each solvent.
＜経糸カバーファクターＣＦｐおよび緯糸カバーファクターＣＦｆ＞下記式で定義する。
経糸カバーファクターＣＦｐ＝（ＤＷｐ／１．１）１／２×ＭＷｐ
緯糸カバーファクターＣＦｆ＝（ＤＷｆ／１．１）１／２×ＭＷｆ
ただし、ＤＷｐは経糸総繊度（ｄｔｅｘ）、ＭＷｐは経糸織密度（本／２．５４ｃｍ）、ＤＷｆは緯糸総繊度（ｄｔｅｘ）、ＭＷｆは緯糸織密度（本／２．５４ｃｍ）である。
<Warn Cover Factor CFp and Weft Cover Factor CFf> These are defined by the following equations.
Warp cover factor CFp = (DWp / 1.1) 1/2 × MWp
Weft cover factor CFf = (DWf / 1.1) 1/2 × MWf
However, DWp is the total warp fineness (dtex), MWp is the warp weave density (main / 2.54 cm), DWf is the total weft fineness (dtex), and MWf is the weft weave density (main / 2.54 cm).
＜溶解速度＞海・島ポリマーの各々０．３Φ−０．６L×２４Hの口金にて１０００〜２０００ｍ／分の紡糸速度で糸を巻き取りし、さらに残留伸度が３０〜６０％の範囲になるように延伸して、８４ｄｔｅｘ／２４ｆｉｌのマルチフィラメントを作製した。これを各溶剤にて溶解しようとする温度で浴比１００にて溶解時間と溶解量から、減量速度を算出した。 <Dissolution rate> The sea and island polymers are each wound up at a spinning speed of 1000 to 2000 m / min with a 0.3Φ-0.6L × 24H die, and the residual elongation is in the range of 30 to 60%. Then, an 84 dtex / 24 fil multifilament was produced. The weight loss rate was calculated from the dissolution time and the dissolution amount at a bath ratio of 100 at a temperature at which the solvent was dissolved in each solvent.
＜風合い＞
布帛表面の風合いを試験者３人が官能評価し、３級：超極細繊維（ナノファイバー）特有の柔らかくヌメリ感のある風合いを呈する、２級：普通、１級：超極細繊維特有の風合いを呈さない、の３段階に評価した。
<Texture>
Three testers sensory-evaluate the texture of the fabric surface, and grade 3: presents a soft, slimy texture peculiar to ultra-fine fibers (nanofibers), grade 2: normal, grade 1: peculiar to ultra-fine fibers. It was evaluated in three stages: not present.
＜単繊維径＞
布帛を電子顕微鏡で写真撮影した後、ｎ数５で単繊維径を測定しその平均値を求めた。
<Single fiber diameter>
After the fabric was photographed with an electron microscope, the single fiber diameter was measured with an n number of 5, and the average value was obtained.
＜保温性＞
２０℃の雰囲気温度中で１０ｃｍ四方の６５℃の熱源上に測定サンプルを置き、消費電力Ｗ１（ワット）と、同じ熱源で測定サンプルを置かない場合の消費電力Ｗ０（ワット）とから下式に基づいて保温性αを算出した。
保温性α＝（Ｗ０−Ｗ１）／Ｗ０×１００（％）
<Heat retention>
Place the measurement sample on a 10cm square 65 ° C heat source in an ambient temperature of 20 ° C and use the following formula from the power consumption W1 (Watt) and the power consumption W0 (Watt) when no measurement sample is placed with the same heat source. Based on this, the heat retention α was calculated.
Thermal insulation α = (W0−W1) / W0 × 100 (%)
［実施例１］
島成分としてポリエチレンテレフタレート、海成分として５−ナトリウムスルホイソフタル酸６モル％と数平均分子量４０００のポリエチレングリコール６重量％を共重合したポリエチレンテレフタレートを用い（溶解速度比（海／島）＝２３０）、海：島＝４０：６０、島数＝５００の海島型複合未延伸繊維を、紡糸温度２８０℃、紡糸速度１５００ｍ／分で溶融紡糸して一旦巻き取った。得られた未延伸糸を、延伸温度８０℃、延伸倍率２．５倍でローラー延伸し、次いで１５０℃で熱セットして巻き取った。得られた海島型複合延伸糸（ポリエステルフィラメント糸Ａ用）は５０ｄｔｅｘ／１０ｆｉｌであり、透過型電子顕微鏡ＴＥＭによる繊維横断面を観察したところ、島の形状は丸形状でかつ島の径は７００ｎｍであった。
一方、フィラメント糸Ｂとして、中空率２５％のポリエステルフィラメント（帝人ファイバー社製、１１０ｄｔｅｘ／２４ｆｉｌ）を用意した。
[Example 1]
Using polyethylene terephthalate as the island component, polyethylene terephthalate copolymerized with 6 mol% of 5-sodium sulfoisophthalic acid and 6% by weight of polyethylene glycol having a number average molecular weight of 4000 as the sea component (dissolution rate ratio (sea / island) = 230), A sea-island type composite unstretched fiber having sea: island = 40: 60 and number of islands = 500 was melt-spun at a spinning temperature of 280 ° C. and a spinning speed of 1500 m / min and wound up once. The obtained undrawn yarn was roller-drawn at a drawing temperature of 80 ° C. and a draw ratio of 2.5 times, and then heat-set at 150 ° C. and wound up. The obtained sea-island type composite drawn yarn (for polyester filament yarn A) was 50 dtex / 10 fil, and the cross section of the fiber was observed with a transmission electron microscope TEM. The shape of the island was round and the diameter of the island was 700 nm. there were.
On the other hand, as the filament yarn B, a polyester filament having a hollow ratio of 25% (manufactured by Teijin Fibers Ltd., 110 dtex / 24 fil) was prepared.
次いで、経糸に中空繊維を配し、一方、緯糸に海島型複合延伸糸を配し、図１に示す朱子組織で織物を製織した。そして、前記海島型複合延伸糸の海成分を除去するために、３．５％ＮａＯＨ水溶液で、５５℃にて３０％減量（アルカリ減量）した。該織物には、単繊維径７００ｎｍのポリエステルフィラメント糸Ａ（４０重量％）と単繊維径２３μｍの中空フィラメント糸Ｂ（６０重量％）が含まれていた。
得られた織物を走査型電子顕微鏡ＳＥＭで織物表面および緯糸断面を観察したところ、海成分は完全に溶解除去されていることを確認した。得られた織物において、経糸カバーファクターＣＦｐは１５００、緯糸カバーファクターＣＦｆは１０００であり、保温性は２０％と優れた保温性を有していた。また、超極細繊維（ナノファイバー）特有の柔らかくヌメリ感のある風合い（３級）を呈するものであった。
次いで、該織物を用いてＴシャツ（スポーツウェア）を得て着用したところ、超極細繊維（ナノファイバー）特有の柔らかくヌメリ感のある風合いを呈し、また、優れた保温性を有するものであった。
Next, hollow fibers were arranged on the warp yarns, while sea-island type composite drawn yarns were arranged on the weft yarns, and the woven fabric was woven with the satin structure shown in FIG. And in order to remove the sea component of the said sea-island type composite stretched yarn, it was reduced by 30% (alkali reduction) at 55 ° C. with a 3.5% NaOH aqueous solution. The woven fabric contained polyester filament yarn A (40 wt%) having a single fiber diameter of 700 nm and hollow filament yarn B (60 wt%) having a single fiber diameter of 23 μm.
When the surface of the woven fabric and the cross section of the weft were observed with a scanning electron microscope SEM, it was confirmed that the sea component was completely dissolved and removed. In the obtained woven fabric, the warp cover factor CFp was 1500, the weft cover factor CFf was 1000, and the heat retention was 20%, which was excellent. Moreover, the soft and slimy texture (3rd grade) peculiar to a super extra fine fiber (nanofiber) was exhibited.
Next, when the T-shirt (sportswear) was obtained and worn using the woven fabric, it exhibited a soft and slimy texture peculiar to ultra-fine fibers (nanofibers) and had excellent heat retention. .
［比較例１］
実施例１で用いた海島型複合延伸糸を経糸および緯糸に配し、図１に示す朱子組織で織物を製織した。そして前記海島型複合延伸糸ｎ海成分を除去するために、２．５％ＮａＯＨ水溶液で、５５℃にて３０％で減量（アルカリ減量）した。得られた織物を操作型電子顕微鏡（ＳＥＭ）で織物表面および経糸および緯糸断面を観察したところ、生み成分は完全に溶割除去されていることを確認した。得られた織物において経糸カバーファクターＣＦｐは１５００、緯糸カバーファクターＣＦｆは１０００であり、超極細繊維（ナノファイバー）特有の柔らかくヌメリ感のある風合い（３級）を呈するものの、保温性は５％と低く、不十分であった。
[Comparative Example 1]
The sea-island type composite drawn yarn used in Example 1 was arranged on the warp and the weft, and the woven fabric was woven with the satin structure shown in FIG. Then, in order to remove the sea-island type composite stretched yarn n sea component, the weight was reduced (alkali weight loss) by 30% at 55 ° C. with a 2.5% NaOH aqueous solution. When the surface of the woven fabric and the cross section of the warp and the weft were observed with an operation electron microscope (SEM), it was confirmed that the production component was completely removed by splitting. The obtained woven fabric has a warp cover factor CFp of 1500 and a weft cover factor CFf of 1000, and exhibits a soft and slimy texture (class 3) peculiar to ultra-fine fibers (nanofibers), but the heat retention is 5%. It was low and insufficient.
［比較例２］
実施例１で用いた中空フィラメント糸Ｂを経糸および緯糸に配し、図１に示す朱子組織で織物を製織し、通常の加工を行った。得られた織物において経糸カバーファクターＣＦｐは１５００、緯糸カバーファクターは１０００であり、保温性は２５％と十分であったが、風合いは硬く、不十分であった。
[Comparative Example 2]
The hollow filament yarn B used in Example 1 was placed on the warp and the weft, and the fabric was woven with the satin structure shown in FIG. In the obtained woven fabric, the warp cover factor CFp was 1500, the weft cover factor was 1000, and the heat retention was 25%, but the texture was hard and insufficient.
本発明によれば、超極細繊維特有のソフトな風合いを呈するだけでなく優れた保温性をも有する布帛、および該布帛を用いてなる繊維製品が提供され、その工業的価値は極めて大である。 ADVANTAGE OF THE INVENTION According to this invention, the fabric which not only exhibits the soft texture peculiar to a microfiber but also has the outstanding heat retention property, and the fiber product using this fabric are provided, The industrial value is very large. .
Claims (12)
２０℃の雰囲気温度中で１０ｃｍ四方の６５℃の熱源上に測定サンプルを置き、消費電力Ｗ１（ワット）と、同じ熱源で測定サンプルを置かない場合の消費電力Ｗ０（ワット）とから下式に基づいて保温性αを算出する。
保温性α＝（Ｗ０−Ｗ１）／Ｗ０×１００（％） The fabric having heat retention and a soft texture according to any one of claims 1 to 10, wherein the heat retention α defined below is 18% or more.
Place the measurement sample on a 10cm square 65 ° C heat source in an ambient temperature of 20 ° C and use the following formula from the power consumption W1 (Watt) and the power consumption W0 (Watt) when no measurement sample is placed with the same heat source. Based on this, the heat retention α is calculated.
Thermal insulation α = (W0−W1) / W0 × 100 (%)
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