JP6068470B2 - Core-sheath composite fiber - Google Patents
Core-sheath composite fiber Download PDFInfo
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- JP6068470B2 JP6068470B2 JP2014524885A JP2014524885A JP6068470B2 JP 6068470 B2 JP6068470 B2 JP 6068470B2 JP 2014524885 A JP2014524885 A JP 2014524885A JP 2014524885 A JP2014524885 A JP 2014524885A JP 6068470 B2 JP6068470 B2 JP 6068470B2
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F8/00—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof
- D01F8/04—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers
- D01F8/12—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers with at least one polyamide as constituent
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- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2331/00—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products
- D10B2331/02—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products polyamides
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
- Y10T428/2913—Rod, strand, filament or fiber
- Y10T428/2929—Bicomponent, conjugate, composite or collateral fibers or filaments [i.e., coextruded sheath-core or side-by-side type]
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- Textile Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Multicomponent Fibers (AREA)
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Description
本発明は、優れた吸湿性、制電性および接触冷感性を有する衣料用に適した芯鞘複合繊維に関する。 The present invention relates to a core-sheath composite fiber suitable for clothing having excellent hygroscopicity, antistatic property, and cold contact sensitivity.
ポリアミド繊維やポリエステル繊維は高強力であり、染色性や加工性に優れるため衣料用途に幅広く用いられている。特にポリアミド繊維はソフトな風合いを有し、合成繊維の中でも吸湿性に優れており、インナーに多用されている。しかしながら、ポリアミド繊維は綿などの天然繊維と比べると吸湿性は十分とはいえず、また、ムレやべたつきといった問題点を有し、さらには帯電しやすく、静電気による不快感を与えやすいという問題があった。
そのような背景からムレやべたつきを防ぐための優れた吸放湿性とそれに伴う優れた制電性や接触冷感性を有する合成繊維が、主にインナー用途やスポーツ衣料用途において要望されている。
特許文献１は、吸湿性ポリマーを使用し、吸湿性、制電性および接触冷感性を十分に発現させるために、繊維表面に吸湿性ポリマーを露出させた部分開口型芯鞘複合繊維が記載されている。Polyamide fibers and polyester fibers are high in strength and excellent in dyeability and processability, and thus are widely used for clothing. In particular, polyamide fibers have a soft texture, are superior in hygroscopicity among synthetic fibers, and are frequently used for inners. However, polyamide fibers are not sufficiently hygroscopic compared to natural fibers such as cotton, and also have problems such as stuffiness and stickiness, and are more likely to be charged and uncomfortable due to static electricity. there were.
From such a background, synthetic fibers having excellent moisture absorption and release properties for preventing dampness and stickiness, and excellent antistatic properties and contact cooling properties are demanded mainly for inner use and sports clothing use.
Patent Document 1 describes a partially-opened core-sheath composite fiber in which a hygroscopic polymer is exposed and the hygroscopic polymer is exposed on the fiber surface in order to sufficiently exhibit hygroscopicity, antistatic property and contact cooling sensation. ing.
しかしながら、特許文献１の部分開口型芯鞘複合繊維は、繊維表面に吸湿性ポリマーを露出させているため、製糸操業性が悪くなるという問題がある。
また、特許文献１の実施例にはハードセグメントが１２−ナイロンのポリエーテルブロックアミド共重合物を芯部に用いた部分開口型芯鞘複合繊維が挙げられているが、この場合、ポリウレタンやポリエチレンテレフタレートと交編織した後の、後工程において繊維芯部が脱落する、布帛が黄変したり硬化するといったトラブルが生じる原因となっている。However, the partially open core-sheath conjugate fiber of Patent Document 1 has a problem that the yarn-manufacturing operability deteriorates because the hygroscopic polymer is exposed on the fiber surface.
Moreover, although the Example of patent document 1 has mentioned the partial opening type | mold core-sheath conjugate fiber which used the polyether block amide copolymer whose hard segment is 12-nylon for the core part, in this case, polyurethane and polyethylene are mentioned. This causes troubles such as the fiber core portion dropping off in a subsequent process after knitting and weaving with terephthalate, and the fabric becoming yellowed or cured.
したがって、本発明は上記のような問題を解決し、生産性に優れ、優れた吸湿性、制電性および接触冷感性を有しながら、ポリウレタンやポリエチレンテレフタレートと交編しても後工程のトラブルが少ない複合繊維を得ることを目的とする。 Therefore, the present invention solves the above-mentioned problems, has excellent productivity, has excellent hygroscopicity, antistatic properties, and cool contact feeling, and is troublesome in the subsequent process even if it is knitted with polyurethane or polyethylene terephthalate. It aims at obtaining the composite fiber with few.
上記目的を達成するため、本発明は芯部と鞘部からなり芯部が繊維表面に露出しない形状の芯鞘複合繊維であり、下記一般式（１）に示すハードセグメントが６−ナイロンであるポリエーテルブロックアミド共重合物を芯部とし、６−ナイロン樹脂を鞘部とした、繊維横断面における芯部と鞘部の面積比率が ３／１〜１／５である芯鞘複合繊維をその要旨とする。
本発明の、ハードセグメントが６−ナイロンであるポリエーテルブロックアミド共重合物を芯部とし、６−ナイロン樹脂を鞘部とした芯鞘複合繊維によれば、優れた生産性でかつ、繊維表面に芯部を露出させずとも優れた吸湿性、制電性および接触冷感性が得られ、また、ポリウレタンやポリエチレンテレフタレートとの交編織における後工程でのトラブルが解消できる。
また、本発明の複合繊維は、直接肌に触れて非常に着心地の良い布帛に製造できるため、例えば肌着、シャツ、背広、パンティストッキング、靴下、帽子、マフラー、作業着、スポーツウェアといった衣料品や寝具品、その他手袋、靴内材、ヘルメット内材、車両内装材、室内内装材等の製品の分野に幅広く用いることができる。According to the core-sheath composite fiber of the present invention having a polyether block amide copolymer whose hard segment is 6-nylon as a core and a 6-nylon resin as a sheath, the fiber surface has excellent productivity. In addition, excellent moisture absorption, antistatic properties and contact cooling sensation can be obtained without exposing the core portion, and troubles in the subsequent process in knitting with polyurethane or polyethylene terephthalate can be solved.
Further, since the conjugate fiber of the present invention can be produced into a fabric that is very comfortable to touch directly on the skin, for example, clothing such as underwear, shirts, suits, pantyhose, socks, hats, mufflers, work clothes, and sportswear. It can be widely used in the field of products such as bedding products, other gloves, shoe interior materials, helmet interior materials, vehicle interior materials, and interior interior materials.
以下、本発明を詳細に説明する。
本発明は芯部と鞘部とからなる芯鞘複合繊維である。
本発明の芯鞘複合繊維は、繊維横断面において、芯部が繊維表面に露出しない形状である。この芯部は単芯であっても、多芯であってもよい。Hereinafter, the present invention will be described in detail.
The present invention is a core-sheath composite fiber comprising a core part and a sheath part.
The core-sheath conjugate fiber of the present invention has a shape in which the core part is not exposed on the fiber surface in the fiber cross section. This core part may be a single core or a multi-core.
本発明の芯鞘複合繊維の芯部は、下記式（１）に示すポリエーテルブロックアミド共重合物からなる。
ここで、本発明のポリエーテルブロックアミド共重合物のハードセグメントのポリアミド単位は、６−ナイロンである。
また、本発明のポリエーテルブロックアミド共重合物のポリエーテル単位としては、例えば、ポリオキシアルキレン単位、ポリエーテルジオール等が挙げられる。なかでも、ポリエチレングリコール、ポリテトラメチレングリコール等が好適に用いられる。
また、ポリアミド単位とポリエーテル単位の質量比は、好ましくは、９９：１〜５：９５、より好ましくは８０：２０〜１０：９０であり、この範囲であれば有効に用いることができる。
また本発明の芯鞘複合繊維の鞘部は、６−ナイロン樹脂からなる。
このように、芯部に、ハードセグメントが６−ナイロンであるポリアミドブロック共重合物を用い、鞘部に、６−ナイロン樹脂を用いたものであれば、優れた吸湿性、制電性および接触冷感性を発現することができる。
上記６−ナイロン樹脂は、９５．７％硫酸溶液での相対粘度が２．１〜２．９が好ましく、なかでも２．１〜２．６であることが好ましい。この範囲であると、製糸工程での糸切れ、芯鞘比率斑が生じ難く、糸質も優れたものとなる。
The core of the core-sheath conjugate fiber of the present invention is made of a polyether block amide copolymer represented by the following formula (1).
Here, the polyamide unit of the hard segment of the polyether block amide copolymer of the present invention is 6-nylon.
Moreover, as a polyether unit of the polyether block amide copolymer of this invention, a polyoxyalkylene unit, polyether diol, etc. are mentioned, for example. Of these, polyethylene glycol, polytetramethylene glycol and the like are preferably used.
Further, the mass ratio of the polyamide unit to the polyether unit is preferably 99: 1 to 5:95, more preferably 80:20 to 10:90, and can be effectively used within this range.
Moreover, the sheath part of the core-sheath composite fiber of this invention consists of 6-nylon resin.
Thus, if the polyamide block copolymer whose hard segment is 6-nylon is used for the core portion and 6-nylon resin is used for the sheath portion, excellent hygroscopicity, antistatic property and contact are obtained. A cool feeling can be expressed.
The 6-nylon resin preferably has a relative viscosity in a 95.7% sulfuric acid solution of 2.1 to 2.9, and particularly preferably 2.1 to 2.6. Within this range, yarn breakage and core-sheath ratio unevenness in the yarn making process are hardly generated, and the yarn quality is excellent.
本発明の芯鞘複合繊維は、繊維強度や染色性、吸湿性、制電性および接触冷感性の点から、繊維横断面における芯部と鞘部の面積比率が３／１〜１／５が好ましい。より好ましくは、１／１〜１／３である。 The core-sheath conjugate fiber of the present invention has an area ratio of 3/1 to 1/5 in the cross section of the fiber in terms of fiber strength, dyeability, hygroscopicity, antistatic property, and contact cooling. preferable. More preferably, it is 1/1 to 1/3.
本発明の複合繊維は、上記のように、芯部にハードセグメントが６−ナイロンであるポリエーテルブロックアミド共重合物を、鞘部に６−ナイロン樹脂を用い、芯部を繊維表面に露出しない繊維横断面形状をもたせたものとすることにより、制電性、吸湿性および接触冷感性を良好に保ちつつ、生産性が良好となり、ポリウレタンやポリエチレンテレフタレートなどを交編織した後工程である１７０℃〜２００℃のヒートセットにおいて、芯部が脱落したり、布帛が黄変したり硬化するというトラブルも防止できる。 As described above, the composite fiber of the present invention uses a polyether block amide copolymer whose hard segment is 6-nylon for the core and 6-nylon resin for the sheath, so that the core is not exposed on the fiber surface. 170 ° C, which is a post-process of knitting and knitting polyurethane, polyethylene terephthalate, and the like, while maintaining good antistatic properties, hygroscopicity and contact cooling sensation, by providing a fiber cross-sectional shape. In a heat set at ˜200 ° C., it is possible to prevent troubles in which the core part falls off or the fabric turns yellow or hardens.
本発明の複合繊維の太さ（総繊度）は特に限定されないが、主に衣料素材としての良好な風合いを保つために１ｄｔｅｘ〜１００ｄｔｅｘの範囲であるのが好ましい。また、本発明の複合繊維の単糸繊度も同様に特に限定されないが、０．５ｄｔｅｘ〜５０ｄｔｅｘの範囲であるのが好ましい。 The thickness (total fineness) of the conjugate fiber of the present invention is not particularly limited, but is preferably in the range of 1 dtex to 100 dtex mainly in order to maintain a good texture as a clothing material. Similarly, the single yarn fineness of the composite fiber of the present invention is not particularly limited, but is preferably in the range of 0.5 dtex to 50 dtex.
本発明の複合繊維の強度は特に限定されないが、製糸操業性や製編織工程の通過性を良好に保ったり、布帛としたときの強力を保つ点から、２．０ｃＮ／ｄｔｅｘ以上が好ましく、より好ましくは２．５ｃＮ／ｄｔｅｘ以上である。 The strength of the conjugate fiber of the present invention is not particularly limited, but it is preferably 2.0 cN / dtex or more from the viewpoint of maintaining good threading operability and passability in the weaving and weaving process, and maintaining strength when used as a fabric. Preferably it is 2.5 cN / dtex or more.
また、本発明の複合繊維は布帛を形成する繊維として、どのような形態で使用されてもよく、マルチフィラメント、モノフィラメント、ステープルなどいずれでもよい。またフィラメントは仮撚加工糸、エアー混繊糸、コアスパンヤーンなどの意匠糸、カバーリング糸であってもよく、ステープルは紡績糸としてもよい。 The composite fiber of the present invention may be used in any form as a fiber forming the fabric, and may be any of multifilament, monofilament, staple, and the like. The filament may be a false twisted yarn, an air blended yarn, a design yarn such as a core spun yarn, or a covering yarn, and the staple may be a spun yarn.
さらに本発明の複合繊維で製造される布帛の形態は特定されず、編組織は緯編、経編を問わず、それぞれの変化組織でも構わない。織組織も、平織、綾織、朱子織等、またはそれぞれの変化組織、さらにはドビーやジャガードなどでも構わない。また、レースや不織布、フェルトとして利用することも可能である。 Furthermore, the form of the fabric manufactured with the conjugate fiber of the present invention is not specified, and the knitting structure may be each changed structure regardless of weft knitting or warp knitting. The weaving structure may be plain weaving, twill weaving, satin weaving or the like, or each changed structure, and dobby or jacquard. It can also be used as a lace, non-woven fabric, or felt.
かかる布帛の形態において、目付け、ゲージなどは特に規定しない。また、本発明の複合繊維を１００質量％で用いても良いし、他の繊維と交編、交織して用いても良い。使用割合も特に限定されないが、本発明の複合繊維を２０質量％〜１００質量％の割合で使用するのが好ましい。 In such a fabric form, the basis weight, gauge, etc. are not particularly defined. Further, the composite fiber of the present invention may be used at 100% by mass, or may be used after knitting or interweaving with other fibers. Although the usage rate is not particularly limited, it is preferable to use the composite fiber of the present invention at a rate of 20% to 100% by mass.
このような機能を持つ布帛を、肌着、セーター、シャツ、パンティストッキング等の衣料品、トレーニングウェアといったスポーツ衣料品、シーツ、中綿等の寝具品の材料とすることにより、これらの製品に機能をもたせることができる。 Using these fabrics as materials for clothing such as underwear, sweaters, shirts and pantyhose, sports clothing such as training wear, and bedding such as sheets and batting, these products can be made functional. be able to.
次に、本発明の複合繊維の製造方法の例を説明する。
本発明の複合繊維は、通常の複合溶融紡糸装置により製造できる。その方法は紡糸速度４００ｍ／分〜１８００ｍ／分で未延伸糸を巻き取り、後に延伸を行うコンベンショナル方式、紡糸速度２５００ｍ／分〜５０００ｍ／分にて巻き取る高速紡糸方式、紡出された未延伸糸を連続的に延伸しながら巻き取るスピンドロー方式などが挙げられ、特に限定されない。Next, the example of the manufacturing method of the composite fiber of this invention is demonstrated.
The composite fiber of the present invention can be produced by a normal composite melt spinning apparatus. The method is a conventional method in which undrawn yarn is wound at a spinning speed of 400 m / min to 1800 m / min, followed by drawing, a high speed spinning method in which the spinning speed is taken up from 2500 m / min to 5000 m / min, and undrawn spun. Examples of the method include a spin draw method in which the yarn is wound while being continuously stretched, and is not particularly limited.
以下に実施例を挙げて本発明を詳細に説明する。なお、本発明は以下に述べる実施例に限定されるものではない。
なお、繊維の破断強度および破断伸度は、ＪＩＳ Ｌ １０１３に準じ、（株）島津製作所製ＡＧＳ−１ＫＮＧオートグラフ引っ張り試験機を用い、試料糸長２０ｃｍ、引っ張り速度２０ｃｍ／ｍｉｎの条件で試料が伸長破断したときの強度および伸度を測定して求めた。
また、９５．７％硫酸溶液での相対粘度は、９５．７％硫酸５０ｍｌに対し、６−ナイロン樹脂０．５ｇを溶解させた溶液を、オストワルド粘度計により２５℃恒温下にて流下させ、その流下時間を硫酸の流下時間で割り返して求めた。Hereinafter, the present invention will be described in detail with reference to examples. In addition, this invention is not limited to the Example described below.
In addition, the breaking strength and breaking elongation of the fiber were measured according to JIS L 1013, using an AGS-1KNG autograph tensile tester manufactured by Shimadzu Corporation under the conditions of a sample yarn length of 20 cm and a tensile speed of 20 cm / min. The strength and elongation at the time of elongation fracture were measured and determined.
The relative viscosity of the 95.7% sulfuric acid solution was such that a solution in which 0.5 g of 6-nylon resin was dissolved in 50 ml of 95.7% sulfuric acid was allowed to flow down at 25 ° C. with an Ostwald viscometer, The flow time was calculated by dividing the flow time by the flow time of sulfuric acid.
〔実施例１〕
芯部にハードセグメントが６−ナイロン、ソフトセグメントがポリエチレングリコールであるポリエーテルブロックアミド共重合物（アルケマ社製ＰＥＢＡＸ ＭＨ１６５７）、鞘部に９５．７％硫酸溶液での相対粘度が２．４３の６−ナイロン（ＤＳＭ社製１０１０Ｊ）を用い、溶融紡糸により芯部／鞘部の面積比１／１の芯部が露出しない形状の芯鞘複合繊維を得た。繊度は７８ｄｔｅｘ、フィラメント数は２４とした。破断強度は２．２９ｃＮ／ｄｔｅｘ、破断伸度は５０．５％であった。[Example 1]
Polyether block amide copolymer (PEBAX MH1657 manufactured by Arkema Co., Ltd.) having a hard segment of 6-nylon and a soft segment of polyethylene glycol in the core, and a relative viscosity of 2.43 in a 95.7% sulfuric acid solution in the sheath Using 6-nylon (1010J manufactured by DSM), a core-sheath composite fiber having a shape in which the core part with a core part / sheath part area ratio of 1/1 was not exposed by melt spinning was obtained. The fineness was 78 dtex, and the number of filaments was 24. The breaking strength was 2.29 cN / dtex and the breaking elongation was 50.5%.
〔実施例２〕
芯部にハードセグメントが６−ナイロン、ソフトセグメントがポリエチレングリコールであるポリエーテルブロックアミド共重合物（アルケマ社製ＰＥＢＡＸ ＭＨ１６５７）、鞘部に９５．７％硫酸溶液での相対粘度が２．４３の６−ナイロン（ＤＳＭ社製１０１０Ｊ）を用い、溶融紡糸により芯部／鞘部の面積比１／２の芯部が露出しない形状の芯鞘複合繊維を得た。繊度は７８ｄｔｅｘ、フィラメント数は２４とした。破断強度は３．０４ｃＮ／ｄｔｅｘ、破断伸度は５１．５％であった。[Example 2]
Polyether block amide copolymer (PEBAX MH1657 manufactured by Arkema) whose hard segment is 6-nylon and soft segment is polyethylene glycol in the core, and whose relative viscosity in the 95.7% sulfuric acid solution is 2.43 in the sheath Using 6-nylon (DSM 1010J), a core-sheath composite fiber having a shape in which the core part having a core part / sheath part area ratio of 1/2 was not exposed was obtained by melt spinning. The fineness was 78 dtex, and the number of filaments was 24. The breaking strength was 3.04 cN / dtex and the breaking elongation was 51.5%.
〔実施例３〕
芯部にハードセグメントが６−ナイロン、ソフトセグメントがポリエチレングリコールであるポリエーテルブロックアミド共重合物（アルケマ社製ＰＥＢＡＸ ＭＨ１６５７）、鞘部に９５．７％硫酸溶液での相対粘度が２．４３の６−ナイロン（ＤＳＭ社製１０１０Ｊ）を用い、溶融紡糸により芯部／鞘部の面積比１／３の芯部が露出しない形状の芯鞘複合繊維を得た。繊度は７８ｄｔｅｘ、フィラメント数は２４とした。破断強度は３．４４ｃＮ／ｄｔｅｘ、破断伸度は５３．５％であった。Example 3
Polyether block amide copolymer (PEBAX MH1657 manufactured by Arkema Co., Ltd.) having a hard segment of 6-nylon and a soft segment of polyethylene glycol in the core, and a relative viscosity of 2.43 in a 95.7% sulfuric acid solution in the sheath Using 6-nylon (DSM 1010J), a core-sheath composite fiber having a shape in which the core part with a core part / sheath part area ratio of 1/3 was not exposed was obtained by melt spinning. The fineness was 78 dtex, and the number of filaments was 24. The breaking strength was 3.44 cN / dtex and the breaking elongation was 53.5%.
〔比較例１〕
芯部にハードセグメントが１２−ナイロン、ソフトセグメントがポリエチレングリコールであるポリエーテルブロックアミド共重合物（アルケマ社製ＰＥＢＡＸ ＭＶ１０７４）、鞘部に９５．７％硫酸溶液での相対粘度が２．４３の６−ナイロン（ＤＳＭ社製１０１０Ｊ）を用い、溶融紡糸により芯部／鞘部の面積比１／２の芯部が露出した形状の部分開口型芯鞘複合繊維を得た。繊度は７８ｄｔｅｘ、フィラメント数は２４とした。[Comparative Example 1]
Polyether block amide copolymer (PEBAX MV1074 manufactured by Arkema Co., Ltd.) having a hard segment of 12-nylon and a soft segment of polyethylene glycol in the core, and a relative viscosity of 2.43 in a 95.7% sulfuric acid solution in the sheath. Using 6-nylon (DSM 1010J), a partially-opened core-sheath composite fiber having a shape in which a core part having a core part / sheath part area ratio of 1/2 was exposed by melt spinning was obtained. The fineness was 78 dtex, and the number of filaments was 24.
〔比較例２〕
芯部にハードセグメントが６−ナイロン、ソフトセグメントがポリエチレングリコールであるポリエーテルブロックアミド共重合物（アルケマ社製ＰＥＢＡＸ ＭＨ１６５７）、鞘部ポリエチレンテレフタレートを用い、溶融紡糸により芯部／鞘部の面積比１／２の芯部が露出しない形状の芯鞘複合繊維を得た。繊度は８４ｄｔｅｘ、フィラメント数は２４とした。[Comparative Example 2]
Polyether block amide copolymer (PEBAX MH1657 manufactured by Arkema Co., Ltd.) with a hard segment of 6-nylon and a soft segment of polyethylene glycol in the core and sheath polyethylene terephthalate, and the core / sheath area ratio by melt spinning A core-sheath composite fiber having a shape in which a half of the core part was not exposed was obtained. The fineness was 84 dtex and the number of filaments was 24.
〔比較例３〕
９５．７％硫酸溶液での相対粘度が２．４３の６−ナイロン（ＤＳＭ社製１０１０Ｊ）を用い、溶融紡糸により単独糸を得た。繊度は７８ｄｔｅｘ、フィラメント数は２４とした。[Comparative Example 3]
A single yarn was obtained by melt spinning using 6-nylon (DSM 1010J) having a relative viscosity of 2.43 in a 95.7% sulfuric acid solution. The fineness was 78 dtex, and the number of filaments was 24.
実施例および比較例で得た繊維を筒編機によって筒編生地とした。得られた筒編生地を以下の各性能評価用のサンプルとした。以下に評価方法を記載する。
１）吸湿性
真空乾燥機で絶乾した後の筒編生地の重量Ｗ０、また２５℃、６０％ＲＨの環境での平衡重量Ｗ１および、３０℃、９８％ＲＨの環境での平衡重量Ｗ２を測定した。（Ｗ２−Ｗ１）×１００／Ｗ０＝吸湿率差ΔＭＲ（％）とし、比較を行った。ΔＭＲが大きいほど吸湿性がよい。
２）制電性
ＪＩＳ Ｌ １０９４−１９９７の摩擦帯電減衰測定にて以下の条件で筒編生地の初期摩擦帯電圧測定を行った。
摩擦帯電圧測定装置：エレクトロ スタティックテスター
摩擦布：羊毛
摩擦方向：縦方向
精錬処理：あり
温湿度：２２℃、３３％ＲＨ
３）接触冷感性（ｑ−ｍａｘ）
筒編後、精錬、乾燥、染色した布帛（編物片）をカトーテック（株）製のサーモラボII型測定器を用い、室温２８．７℃、湿度６０％ＲＨの部屋で、ＢＴ−Ｂｏｘを３８．７℃に調節し、充分調湿したサンプルの上にＢＴ−Ｂｏｘ（圧力１０ｇ/ｃｍ２）を乗せ、１０℃の温度差での単位面積当たりの熱流速を測定した。本測定方法においてｑ−ｍａｘが０．１５０（Ｊ/ｃｍ２・ｓｅｃ）以上であるのが好ましい。
４）透過率
（株）島津製作所製の自記分光光度計（ＵＶ−３１０１ＰＣ）により筒編生地を２枚重ねて、透過率を測定した。The fibers obtained in the examples and comparative examples were made into a tubular knitted fabric with a tubular knitting machine. The obtained cylindrical knitted fabric was used as a sample for each of the following performance evaluations. The evaluation method is described below.
1) Hygroscopicity The weight W0 of the tubular knitted fabric after completely dried with a vacuum dryer, the equilibrium weight W1 in an environment of 25 ° C. and 60% RH, and the equilibrium weight W2 in an environment of 30 ° C. and 98% RH It was measured. Comparison was made with (W2−W1) × 100 / W0 = moisture absorption difference ΔMR (%). The higher the ΔMR, the better the hygroscopicity.
2) Antistatic property The initial frictional band voltage of the tubular knitted fabric was measured under the following conditions in the frictional charge attenuation measurement of JIS L 1094-1997.
Friction voltage measuring device: Electrostatic tester Friction cloth: Wool Friction direction: Longitudinal direction Refining treatment: Available Temperature and humidity: 22 ° C, 33% RH
3) Contact cooling sensitivity (q-max)
After pipe knitting, the smelted, dried, and dyed fabric (knitted piece) was used in a room at room temperature of 28.7 ° C. and humidity of 60% RH using a Thermolab II measuring instrument manufactured by Kato Tech Co., Ltd. BT-Box (pressure 10 g / cm 2 ) was placed on a sample adjusted to 7 ° C. and sufficiently humidified, and the heat flow rate per unit area at a temperature difference of 10 ° C. was measured. In this measurement method, q-max is preferably 0.150 (J / cm 2 · sec) or more.
4) Transmittance Two tubular knitted fabrics were stacked using a self-recording spectrophotometer (UV-3101PC) manufactured by Shimadzu Corporation, and the transmittance was measured.
吸湿性評価についての結果を以下の表１に示す。実施例１〜３、比較例１，２において吸湿性が認められた。特に実施例１，２においてΔＭＲが高い値となり、吸湿性に優れていた。
本発明の実施例２と比較例品につき、制電性評価結果を以下の表２に示す。ポリエーテルブロックアミド共重合物を用いない比較例３は、制電性が認められなかった。芯部のハードセグメントが１２−ナイロンの比較例１、鞘部がポリエステルの比較例２も、制電性は良好であるが、本発明の実施例２のものが特に優れていた。
本発明の実施例２と比較例品につき、接触冷感性評価についての結果を表３に示す。実施例２および比較例１において接触冷感性が認められ、本発明の実施例２は特に優れた接触冷感性を示した。
本発明の実施例２と比較例３につき、熱作用に影響がある波長７００〜２４００ｎｍの近赤外領域において、透過率を測定し、平均値を表４に示す。実施例２は比較例３のものと比較し、透過率が低く、良好な遮熱性が得られる。
ポリウレタンやポリエチレンテレフタレートのヒートセット温度である１９０℃にて１分間の熱処理を施した後の布帛の様子を表５に示す。尚、変化のないものを○、ポリマーが脱落したり、黄変したものは×とした。
実施例品および比較例品において、繊維化する工程での糸切れ発生率を比較したところ、実施例品、比較例３のものは糸切れ発生率が低く、比較例１と比較例２は糸切れ発生率が高く、生産性に劣っていた。また、実施例品および比較例品を同じダンボール内に保管し、３ヵ月後に色相を確認したところ、比較例１のみに繊維の黄変が見られた。
また実施例品はいずれも芯鞘比率斑がなく、糸質に優れていたが、比較例２のものは芯鞘比率斑が生じた。
また、実施例１〜３で得られた繊維を、酸性染料で染色したところ、染色性も良好であった。なお、実施例１〜３、比較例１〜３で得られた複合繊維を、ポリウレタンと交編した後、熱処理して、加工したところ、比較例１の繊維を用いた編物は、ポリマーが脱落し、黄変したが、実施例品は、ポリマーの脱落も黄変もなかった。
以上のように、実施例品は、吸湿性、制電性および接触冷感性を有しながら、ポリウレタンやポリエチレンテレフタレートと交編しても後工程のトラブルが少ない複合繊維である。また、実施例２のものは、近赤外線の波長の透過率が低く、遮熱性が良好なため、遮熱性が求められる用途にも適用可能である。In the example product and the comparative example product, the yarn breakage occurrence rate in the fiberizing process was compared. The example product and the comparative example 3 had a low yarn breakage occurrence rate, and the comparative example 1 and the comparative example 2 were yarns. Cutting rate was high and productivity was inferior. In addition, when the product of the example and the comparative product were stored in the same cardboard and the hue was confirmed after 3 months, only the comparative example 1 showed yellowing of the fiber.
In addition, all of the examples had no core-sheath ratio spots and were excellent in yarn quality, but those of Comparative Example 2 had core-sheath ratio spots.
Moreover, when the fibers obtained in Examples 1 to 3 were dyed with an acid dye, the dyeability was also good. In addition, when the composite fibers obtained in Examples 1 to 3 and Comparative Examples 1 to 3 were knitted with polyurethane and then heat treated and processed, the knitted fabric using the fibers of Comparative Example 1 had the polymer falling off. Although the sample was yellowed, the polymer of the example did not lose any polymer or yellowed.
As described above, the example products are composite fibers that have hygroscopicity, antistatic properties, and contact cooling sensation, and have few troubles in the subsequent process even when knitted with polyurethane or polyethylene terephthalate. Moreover, since the thing of Example 2 has the low transmittance | permeability of the near-infrared wavelength and favorable heat insulation, it is applicable also to the use for which heat insulation is calculated | required.
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| JP2012157015 | 2012-07-12 | ||
| JP2012157015 | 2012-07-12 | ||
| PCT/JP2013/069066 WO2014010709A1 (en) | 2012-07-12 | 2013-07-11 | Sheath-core bicomponent fibre |
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| US (1) | US20150159303A1 (en) |
| EP (1) | EP2873756B1 (en) |
| JP (1) | JP6068470B2 (en) |
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| CN103924367A (en) * | 2014-04-15 | 2014-07-16 | 太仓市其盛化纤厂 | Method for producing antistatic wool-like fabric |
| JP2016204784A (en) * | 2015-04-23 | 2016-12-08 | 東レ株式会社 | Polyamide core-sheath composite fiber excellent in hygroscopicity and contact cool feeling and fabric using the same |
| JP2016132828A (en) * | 2015-01-15 | 2016-07-25 | 東レ株式会社 | Hygroscopic core-sheath conjugated yarn |
| EP3299500B1 (en) | 2015-05-22 | 2020-10-21 | Toray Industries, Inc. | Hygroscopic core-sheath conjugate yarn and production method therefor |
| AU2016351997B2 (en) | 2015-11-10 | 2020-07-30 | Toray Industries, Inc. | Core-sheath composite cross-section fiber having excellent moisture absorbency and wrinkle prevention |
| WO2017098861A1 (en) | 2015-12-08 | 2017-06-15 | 東レ株式会社 | Moisture-absorbing core-sheath composite yarn, and fabric |
| JP7050424B2 (en) * | 2017-04-24 | 2022-04-08 | Ｋｂセーレン株式会社 | Method for manufacturing composite fiber, fabric and fiber structure |
| KR102100140B1 (en) * | 2018-04-20 | 2020-04-13 | 조대현 | Medical pressure band with excellent heat conduction property and cool feeling property |
| CN109402776A (en) * | 2018-10-09 | 2019-03-01 | 广东省化学纤维研究所 | A kind of composite fibre and preparation method thereof of core-skin type cool feeling long filament |
| US20230323568A1 (en) | 2020-09-24 | 2023-10-12 | Toray Industries, Inc. | Polyamide core-sheath composite fiber and fabric |
| TW202300739A (en) * | 2021-03-16 | 2023-01-01 | 大陸商東麗纖維研究所（中國）有限公司 | Composite fiber and preparation method therefor |
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| JPS61258019A (en) * | 1985-05-10 | 1986-11-15 | Toray Ind Inc | Production of antistatic polyamide fiber |
| JPS61289123A (en) * | 1985-06-14 | 1986-12-19 | Toray Ind Inc | Conjugate fiber |
| JP3172969B2 (en) * | 1991-08-26 | 2001-06-04 | ユニチカ株式会社 | Method for producing brushed fabric |
| JP3144092B2 (en) * | 1992-10-26 | 2001-03-07 | 東レ株式会社 | Core-sheath type composite fiber with excellent hygroscopicity |
| JPH10251921A (en) * | 1997-03-05 | 1998-09-22 | Toray Ind Inc | Sheath-core type conjugate fiber |
| US7160612B2 (en) * | 2000-09-21 | 2007-01-09 | Outlast Technologies, Inc. | Multi-component fibers having enhanced reversible thermal properties and methods of manufacturing thereof |
| JP5191381B2 (en) * | 2006-04-21 | 2013-05-08 | 愛知県 | Method for producing elastomeric core-sheath conjugate fiber |
| KR101440983B1 (en) * | 2007-04-04 | 2014-09-17 | 케이비 세렌 가부시키가이샤 | Conjugated fiber excellent in antistatic property, moisture absorption and cool touch feeling |
| MY152589A (en) * | 2007-04-18 | 2014-10-31 | Kb Seiren Ltd | Splittable conjugate fiber, fiber structure using the same and wiping cloth |
| US7998577B2 (en) * | 2007-12-13 | 2011-08-16 | E. I. Du Pont De Nemours And Company | Multicomponent fiber with polyarylene sulfide component |
| US20120128975A1 (en) * | 2008-09-30 | 2012-05-24 | Kb Seiren, Ltd. | Conjugate fibers for stockings |
| JP5324250B2 (en) * | 2009-02-16 | 2013-10-23 | グンゼ株式会社 | Cloth |
| CN102378833B (en) * | 2009-03-31 | 2014-07-02 | 郡是株式会社 | Core-sheath conjugate fiber |
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| KR101906325B1 (en) | 2018-10-10 |
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| EP2873756A1 (en) | 2015-05-20 |
| KR20150032288A (en) | 2015-03-25 |
| WO2014010709A1 (en) | 2014-01-16 |
| CN104471122A (en) | 2015-03-25 |
| US20150159303A1 (en) | 2015-06-11 |
| JPWO2014010709A1 (en) | 2016-06-23 |
| EP2873756B1 (en) | 2019-04-03 |
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