JP2002266180A - Long and short composite yarn and polyester-based stretchable woven fabric - Google Patents

Long and short composite yarn and polyester-based stretchable woven fabric

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Publication number
JP2002266180A
JP2002266180A JP2001056295A JP2001056295A JP2002266180A JP 2002266180 A JP2002266180 A JP 2002266180A JP 2001056295 A JP2001056295 A JP 2001056295A JP 2001056295 A JP2001056295 A JP 2001056295A JP 2002266180 A JP2002266180 A JP 2002266180A
Authority
JP
Japan
Prior art keywords
short
yarn
long
fiber
composite
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP2001056295A
Other languages
Japanese (ja)
Inventor
Masafumi Kito
雅文 木藤
Kazuya Murata
和也 村田
Motoharu Kitajima
基晴 北嶋
Original Assignee
Toray Ind Inc
東レ株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Toray Ind Inc, 東レ株式会社 filed Critical Toray Ind Inc
Priority to JP2001056295A priority Critical patent/JP2002266180A/en
Publication of JP2002266180A publication Critical patent/JP2002266180A/en
Pending legal-status Critical Current

Links

Abstract

PROBLEM TO BE SOLVED: To provide a long and short composite yarn having excellent stretchability, recovering properties, bulking properties and shape-stability of a core-and-sheath structure. SOLUTION: This long and short composite yarn includes a conjugate fiber obtained by sticking two kinds of polyester-based polymers one of which is the polyester consisting essentially of a polytrimethylene terephthalate along the fiber length direction to form a side-by-side shape. The polyester-based stretchable woven fabric is obtained by using the long and short composite yarn as at least one of a warp yarn or a weft yarn, and has >=10% elongation of the woven fabric in the direction in which the long and short composite yarn is used.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION
【0001】[0001]
【発明の属する技術分野】本発明は、膨らみ感、高ソフ
トストレッチ性と回復性を有する長短複合糸に関するも
のである。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a long and short composite yarn having a feeling of swelling, high soft stretchability and recoverability.
【0002】[0002]
【従来の技術】従来、フィラメントと短繊維の長短複合
糸に関しては数々の研究・開発が行われており、その中
でストレッチ性を付与したものとして、例えばポリウレ
タン系の弾性糸を使用した短繊維との複合糸(CS
Y)、伸縮性を持ったフィラメントを集束させて短繊維
の芯部に位置させるコアヤーン等があげられる。
2. Description of the Related Art Hitherto, various researches and developments have been made on filaments and short and long composite yarns. Among them, short fibers using polyurethane elastic yarns, for example, have been given a stretch property. Composite yarn (CS
Y), core yarns, etc., in which elastic filaments are bundled and positioned at the core of short fibers.
【0003】しかしながら、このような複合糸はフィラ
メント成分と短繊維成分、つまり芯成分と鞘成分との絡
合性、拘束性に欠け、鞘成分と芯成分が分離したいわゆ
るヌードヤーンの発生、また後の織編物工程通過時の摩
擦によるネップ等の問題があった。
[0003] However, such a composite yarn lacks the entanglement and restraining properties of the filament component and the short fiber component, that is, the core component and the sheath component, and generates so-called nude yarn in which the sheath component and the core component are separated. There was a problem such as neps due to friction during the later weaving and knitting process.
【0004】また従来の長短複合糸は芯鞘型構造を維持
するために芯成分と鞘成分を拘束させる必要があること
から、紡績糸の撚りを通常対比高めにする必要があり、
結果的に鞘成分の短繊維あるいは芯成分の短繊維の収束
が強くなり、布帛とした際ソフトな風合いが損なわれる
という問題もあった。
[0004] In addition, in the conventional long and short composite yarns, it is necessary to restrain the core component and the sheath component in order to maintain the core-in-sheath type structure.
As a result, the short fibers of the sheath component or the short fibers of the core component are strongly converged, and there is also a problem that a soft texture is impaired when the fabric is used.
【0005】[0005]
【発明が解決しようとする課題】そこで本発明は、上述
のような従来技術では得られなかった優れたソフトスト
レッチ性と回復性および、膨らみ感と芯鞘構造の形態安
定性を有する長短複合糸を提供することを目的とする。
SUMMARY OF THE INVENTION Accordingly, the present invention provides a long and short composite yarn having excellent soft stretchability and recoverability, swelling and morphological stability of a core-sheath structure, which cannot be obtained by the above-mentioned prior art. The purpose is to provide.
【0006】[0006]
【課題を解決するための手段】前記した課題を解決する
ため本発明の長短複合糸は、主として次の構成を有す
る。
Means for Solving the Problems To solve the above-mentioned problems, the long and short composite yarn of the present invention mainly has the following constitution.
【0007】すなわち本発明は、一方がポリトリメチレ
ンテレフタレートを主体としたポリエステルである2種
類のポリエステル系重合体を繊維長さ方向に沿ってサイ
ドバイサイド型に貼り合わせた複合繊維のフィラメント
と短繊維を有する長短複合糸である。
That is, the present invention relates to a conjugate fiber filament and a short fiber in which two types of polyester polymers, one of which is a polyester mainly composed of polytrimethylene terephthalate, are bonded in a side-by-side type along the fiber length direction. It is a long and short composite yarn.
【0008】また、当該長短複合糸を経糸および緯糸の
少なくとも一方に用い、当該長短複合糸を用いた方向の
織物伸長率が10%以上であるポリエステル系ストレッ
チ織物である。
[0008] Further, there is provided a polyester stretch woven fabric in which the long and short composite yarn is used for at least one of a warp and a weft, and a woven fabric elongation in a direction using the long and short composite yarn is 10% or more.
【0009】[0009]
【発明の実施の形態】本発明の長短複合糸は芯または鞘
成分が、ポリエステル系のサイドバイサイド型複合繊維
のマルチフィラメントと短繊維からなるものである。
BEST MODE FOR CARRYING OUT THE INVENTION The long / short conjugate yarn of the present invention has a core or sheath component composed of a polyester-based side-by-side conjugate fiber multifilament and a short fiber.
【0010】以下、本発明の長短複合糸に用いるサイド
バイサイド型複合繊維のマルチフィラメントについて説
明する。
The multifilament of the side-by-side type conjugate fiber used in the long and short conjugate yarn of the present invention will be described below.
【0011】サイドバイサイド型の複合繊維は、固有粘
度や共重合成分、共重合率等が異なる重合体を貼り合わ
せ、それらの弾性回復特性や収縮特性の差によって、捲
縮を発現するものである。固有粘度差を有するサイドバ
イサイド型複合の場合、紡糸、延伸時に高固有粘度側に
応力が集中するため、2成分間で内部歪みが異なる。そ
のため、延伸後の弾性回復率差により高粘度側が大きく
収縮し、単繊維内で歪みが生じて3次元コイル捲縮の形
態をとる。この3次元コイルの径および単位繊維長当た
りのコイル数は、高収縮成分と低収縮成分との収縮差
(弾性回復率差を含む)によって決まると言ってもよ
く、収縮差が大きいほどコイル径が小さく、単位繊維長
当たりのコイル数が多くなる。
The side-by-side type conjugate fiber is obtained by laminating polymers having different intrinsic viscosities, copolymerization components, copolymerization ratios, etc., and develops a crimp due to a difference in their elastic recovery characteristics and shrinkage characteristics. In the case of a side-by-side composite having an intrinsic viscosity difference, stress is concentrated on the high intrinsic viscosity side during spinning and drawing, so that the internal strain differs between the two components. Therefore, the high-viscosity side largely shrinks due to the difference in elastic recovery rate after stretching, and distortion occurs in the single fiber to take a form of a three-dimensional coil crimp. It can be said that the diameter of the three-dimensional coil and the number of coils per unit fiber length are determined by the difference in shrinkage (including the difference in elastic recovery rate) between the high shrinkage component and the low shrinkage component. And the number of coils per unit fiber length increases.
【0012】ストレッチ素材として要求されるコイル捲
縮は、コイル径が小さく、単位繊維長当たりのコイル数
が多い(伸長特性に優れ、見映えが良い)、コイルの耐
へたり性が良い(伸縮回数に応じたコイルのへたり量が
小さく、ストレッチ保持性に優れる)、さらにはコイル
の伸長回復時におけるヒステリシスロスが小さい(弾発
性に優れ、フィット感がよい)等である。これらの要求
を全て満足しつつ、ポリエステルとしての特性、例えば
適度な張り腰、ドレープ性、高染色堅牢性を有すること
で、トータルバランスに優れたストレッチ素材とするこ
とができる。
A coil crimp required as a stretch material has a small coil diameter, a large number of coils per unit fiber length (excellent elongation characteristics, good appearance), and good coil set resistance (expansion and contraction). The set amount of the coil according to the number of times is small and the stretch retention is excellent), and the hysteresis loss at the time of recovery from the extension of the coil is small (excellent elasticity and good fit). By satisfying all of these requirements and having the properties of polyester, such as moderate tension, drapability, and high color fastness, a stretch material excellent in total balance can be obtained.
【0013】ここで、前記のコイル特性を満足するため
には高収縮成分(高粘度成分)の特性が重要となる。コ
イルの伸縮特性は、低収縮成分を支点とした高収縮成分
の伸縮特性が支配的となるため、高収縮成分に用いる重
合体には高い伸長性および回復性が要求される。
Here, in order to satisfy the above-mentioned coil characteristics, characteristics of a high shrinkage component (high viscosity component) are important. Since the expansion and contraction characteristics of the coil are dominated by the expansion and contraction characteristics of the high contraction component with the low contraction component as a fulcrum, the polymer used for the high contraction component is required to have high extensibility and recoverability.
【0014】そこで、本発明者らはポリエステルの特性
を損なうことなく前記特性を満足させるために鋭意検討
した結果、高収縮成分にポリトリメチレンテレフタレー
ト(以下PTTと略記する)を主体としたポリエステル
を用いることを見出した。PTT繊維は、代表的なポリ
エステル繊維であるポリエチレンテレフタレート(以下
PETと略記する)やポリブチレンテレフタレート(以
下PBTと略記する)繊維と同等の力学的特性や化学的
特性を有しつつ、弾性回復性、伸長回復性が極めて優れ
ている。これは、PTTの結晶構造においてアルキレン
グリコール部のメチレン鎖がゴーシュ−ゴーシュの構造
(分子鎖が90度に屈曲)であること、さらにはベンゼ
ン環同士の相互作用(スタッキング、並列)による拘束
点密度が低く、フレキシビリティーが高いことから、メ
チレン基の回転により分子鎖が容易に伸長・回復するた
めと考えている。
The inventors of the present invention have conducted intensive studies to satisfy the above-mentioned properties without impairing the properties of the polyester. As a result, a polyester mainly composed of polytrimethylene terephthalate (hereinafter abbreviated as PTT) as a high shrinkage component was obtained. Found to be used. PTT fiber has elastic recovery properties while having mechanical properties and chemical properties equivalent to those of typical polyester fibers such as polyethylene terephthalate (hereinafter abbreviated as PET) and polybutylene terephthalate (hereinafter abbreviated as PBT) fibers. And excellent elongation recovery. This is because in the PTT crystal structure, the methylene chain of the alkylene glycol moiety has a Gauche-Gauche structure (the molecular chain is bent at 90 degrees), and furthermore, the constraint point density due to the interaction (stacking, parallel) between benzene rings. It is considered that the molecular chain is easily extended and recovered by the rotation of the methylene group because of low flexibility and high flexibility.
【0015】ここで、本発明におけるPTTとは、テレ
フタル酸を主たる酸成分とし、1,3−プロパンジオー
ルを主たるグリコール成分として得られるポリエステル
である。ただし、20モル%、より好ましくは10モル
%以下の割合で他のエステル結合の形成が可能な共重合
成分を含むものであってもよい。共重合可能な化合物と
して、例えばイソフタル酸、コハク酸、シクロヘキサン
ジカルボン酸、アジピン酸、ダイマ酸、セバシン酸、5
−ナトリウムスルホイソフタル酸などのジカルボン酸
類、エチレングリコール、ジエチレングリコール、ブタ
ンジオール、ネオペンチルグリコール、シクロヘキサン
ジメタノール、ポリエチレングリコール、ポリプロピレ
ングリコールなどのジオール類を挙げることができる
が、これらに限定されるものではない。また、必要に応
じて、艶消し剤となる二酸化チタン、滑剤としてのシリ
カやアルミナの微粒子、抗酸化剤としてヒンダードフェ
ノール誘導体、着色顔料などを添加してもよい。
Here, the PTT in the present invention is a polyester obtained by using terephthalic acid as a main acid component and 1,3-propanediol as a main glycol component. However, it may contain a copolymer component capable of forming another ester bond at a ratio of 20 mol%, more preferably 10 mol% or less. Examples of the copolymerizable compound include, for example, isophthalic acid, succinic acid, cyclohexanedicarboxylic acid, adipic acid, dimeric acid, sebacic acid,
Dicarboxylic acids such as sodium sulfoisophthalic acid, and diols such as ethylene glycol, diethylene glycol, butanediol, neopentyl glycol, cyclohexanedimethanol, polyethylene glycol, and polypropylene glycol, but are not limited thereto. . If necessary, titanium dioxide as a matting agent, fine particles of silica or alumina as a lubricant, hindered phenol derivatives, coloring pigments and the like as antioxidants may be added.
【0016】また、低収縮成分(低粘度成分)には高収
縮成分であるPTTとの界面接着性が良好で、製糸性が
安定している繊維形成性ポリエステルであれば特に限定
されるものではないが、力学的特性、化学的特性および
原料価格を考慮すると、繊維形成能のあるPETが好ま
しい。
The low-shrinkage component (low-viscosity component) is not particularly limited as long as it is a fiber-forming polyester having good interfacial adhesion with PTT, which is a high-shrinkage component, and a stable spinning property. However, in view of mechanical properties, chemical properties, and raw material prices, PET capable of forming fibers is preferable.
【0017】また、両成分の複合比率は製糸性および繊
維長さ方向のコイルの寸法均質性の点で、高収縮成分:
低収縮成分=75:25〜35:65(重量%)の範囲
が好ましく、65:35〜45:55の範囲がより好ま
しい。
The composite ratio of the two components is determined in terms of the spinning properties and the dimensional homogeneity of the coil in the fiber length direction.
Low shrinkage component = 75: 25 to 35:65 (% by weight) is preferable, and 65:35 to 45:55 is more preferable.
【0018】本発明の長短複合糸に用いるサイドバイサ
イド型複合繊維の断面形状は、丸断面、扁平断面、三角
断面、マルチローバル断面、X型断面、その他公知の異
形断面であってもよいが、特にダルマ型断面であること
がより好ましい。
The cross-sectional shape of the side-by-side type conjugate fiber used for the long and short conjugate yarns of the present invention may be a round cross section, a flat cross section, a triangular cross section, a multi-lobal cross section, an X-shaped cross section, or other known cross sections. More preferably, it is a Dharma type cross section.
【0019】ここでいうダルマ型断面とは、図2に示す
ようなPTT成分とPET成分の界面が断面の長手方向
に対して垂直方向に貼り合わせたものである。
The Dharma-shaped cross-section referred to here is one in which the interface between the PTT component and the PET component is bonded in a direction perpendicular to the longitudinal direction of the cross-section as shown in FIG.
【0020】サイドバイサイド型複合繊維は、マルチフ
ィラメントの位相が揃い集合した形でSとZ方向のトル
クを有するクリンプが交互に発現しやすく、結果的にS
とZのトルクの変わり目においてマルチフィラメント全
体が捩れ、織物にした場合シボが発生し易い。
In the side-by-side type conjugate fiber, crimps having torques in the S and Z directions are easily generated alternately in a form in which the multifilaments have the same phase and are aggregated.
The entire multifilament is twisted at the transition point between the torques of Z and Z, and the fabric is liable to generate grain.
【0021】そのため本発明の長短複合糸に用いるサイ
ドバイサイド型複合繊維は、捲縮の位相がマルチフィラ
メントを構成する単糸間で揃っていないことが好まし
い。ここで捲縮の位相とは、単糸においてS方向のトル
クの捲縮とZ方向のトルクの捲縮とが交互に発現してい
るパターンをいう。例えばある単糸がSトルクの捲縮を
呈している箇所に、別の単糸のZトルクの捲縮を配する
ことにより、ストレッチ性は損なうことなく互いのトル
クを消し合い、シボの発生を抑えることができる。捲縮
の位相がマルチフィラメントを構成する単糸間で揃わな
いようにするためには捲縮力を分散させる必要があり、
その手段としてはサイドバイサイド型複合繊維の断面が
図2に示すようなダルマ型断面であれば、シボの発生を
防ぐことができ、より高品位の織物を得ることができ
る。
Therefore, it is preferable that the side-by-side type conjugate fibers used in the long and short conjugate yarns of the present invention have crimp phases not uniform among the single yarns constituting the multifilament. Here, the crimping phase refers to a pattern in which the crimping of the torque in the S direction and the crimping of the torque in the Z direction alternately appear in the single yarn. For example, by arranging a crimp of Z torque of another single yarn at a position where a single yarn exhibits crimp of S torque, the stretchability cancels out each other's torque without impairing, thereby reducing the occurrence of grain. Can be suppressed. It is necessary to disperse the crimping force so that the crimping phase is not aligned between the single yarns constituting the multifilament,
As the means, if the cross section of the side-by-side type conjugate fiber is a Dharma type cross section as shown in FIG. 2, generation of grain can be prevented, and a higher-quality woven fabric can be obtained.
【0022】また、サイドバイサイド型複合繊維の単糸
繊度は、1.1〜10dtexが好ましく、より好まし
くは1.1〜6dtexである。1.1dtex以上と
することで、捲縮によるストレッチ性の実効を得ること
ができる。
The single-fiber fineness of the side-by-side type conjugate fiber is preferably from 1.1 to 10 dtex, more preferably from 1.1 to 6 dtex. By setting it to 1.1 dtex or more, it is possible to obtain an effective stretch property by crimping.
【0023】また、本発明の長短複合糸に用いるサイド
バイサイド型複合繊維は、20%伸張時の伸長回復率が
80%以上であることが好ましい。この伸長回復率が8
0%以上であれば、リング精紡機にて長短複合糸にした
際、優れたストレッチバック性と捲縮発現性により、短
繊維成分と強固に絡み合い、芯鞘型構造の形態安定性に
優れ、膨らみ感、高ストレッチを有する長短複合糸を得
ることができ、織物としたとき良好なストッレッチ性を
得ることができる。
The side-by-side type conjugate fiber used in the long and short conjugate yarns of the present invention preferably has an elongation recovery rate of 20% or more at 20% elongation. This growth recovery rate is 8
If it is 0% or more, when it is made into a long-short composite yarn by a ring spinning machine, it is strongly entangled with the short fiber component due to excellent stretch-back property and crimp development, and has excellent morphological stability of the core-sheath type structure, Long and short composite yarns having a feeling of swelling and high stretch can be obtained, and good stretchability can be obtained when the woven fabric is used.
【0024】次に、本発明の長短複合糸に用いる短繊維
について説明する。
Next, the short fibers used in the long and short composite yarns of the present invention will be described.
【0025】該短繊維として用いる繊維素材は特に限定
されず、綿、ウール、麻などの天然繊維、ポリエステ
ル、アクリル、ポリアミド、ポリプロピレンなどの合成
繊維であってもよい。しかしながら、本発明ではポリエ
ステルフィラメント糸条を用いていることから、高次加
工における染色性、物理特性を考慮し、ポリエステル素
材にすることが好ましい。
The fiber material used as the short fibers is not particularly limited, and may be natural fibers such as cotton, wool and hemp, and synthetic fibers such as polyester, acrylic, polyamide and polypropylene. However, since a polyester filament yarn is used in the present invention, it is preferable to use a polyester material in consideration of dyeability and physical properties in high-order processing.
【0026】また該短繊維を構成する短繊維の断面形状
は特に限定されず、丸であっても、多角形、H型、中空
などの異形断面であっても良い。短繊維の繊度について
も特に限定されないが、紡積性を考慮すると0.5〜5
dが好ましい、繊維長については各種紡績方法に応じた
繊維長とするのがよい。
The cross-sectional shape of the short fibers constituting the short fibers is not particularly limited, and may be round, polygonal, H-shaped, hollow, or other irregular cross-section. The fineness of the short fiber is not particularly limited, but is 0.5 to 5 in consideration of spinnability.
d is preferable, and the fiber length is preferably a fiber length according to various spinning methods.
【0027】本発明の長短複合糸の番手は特に限定され
ないが長短複合紡績糸を製造する上で、短繊維の断面構
成繊維本数が50本以上となるよう番手を決定するのが
好ましい。またヨリ数Tは一般的な長短複合紡績糸より
やや低めに設定するのがよく、T(回/in)=K(綿
番手)1/2(K:ヨリ係数)においてK=3.0〜4.
0の範囲が好ましい。
Although the count of the long and short composite yarns of the present invention is not particularly limited, it is preferable to determine the count so that the number of cross-sectional fibers of the short fibers is 50 or more in producing the long and short composite spun yarns. Also, the twist number T is preferably set slightly lower than that of a general long and short composite spun yarn. At T (twice / in) = K (cotton count) 1/2 (K: twist coefficient), K = 3.0 to 2.0. 4.
A range of 0 is preferred.
【0028】本発明の長短複合糸は、上述したサイドバ
イサイド型複合繊維糸と短繊維から構成され、一方が芯
部にもう一方が鞘部となるよう捲回してなる芯鞘型構造
である。
The long-short conjugate yarn of the present invention is composed of the above-mentioned side-by-side type conjugate fiber yarn and short fiber, and has a core-sheath type structure in which one is wound into a core and the other is a sheath.
【0029】芯部にサイドバイサイド型複合繊維糸、鞘
部に短繊維を捲回してなる構造の場合、サイドバイサイ
ド型複合繊維糸が持つ優れたストレッチ性と回復性によ
って得られる膨らみ感、鞘成分の短繊維の毛羽感により
ソフトな風合いを持つ素材を得ることができる。図1に
芯部にサイドバイサイド型複合繊維糸、鞘部に短繊維が
配置された長短複合糸の断面略図を示す。また、芯鞘部
の構成が上述と逆構造の場合は、サイドバイサイド型複
合繊維糸の持つ回復性により短繊維の毛羽が抑えられ糸
スジの良い素材を得ることができる。
In the case of a structure in which a side-by-side type composite fiber yarn is wound on a core portion and a short fiber is wound on a sheath portion, a swelling feeling and a short sheath component are obtained by the excellent stretchability and recovery property of the side-by-side type composite fiber yarn. A material having a soft texture can be obtained due to the fluffiness of the fiber. FIG. 1 is a schematic cross-sectional view of a long-short composite yarn in which a side-by-side type composite fiber yarn is disposed in a core portion and short fibers are disposed in a sheath portion. In addition, when the core-sheath portion has the reverse structure as described above, the fluff of short fibers is suppressed by the recoverability of the side-by-side type composite fiber yarn, and a material with good yarn streak can be obtained.
【0030】サイドバイサイド型複合繊維糸と短繊維の
複合比率は、サイドバイサイド型複合繊維糸/短繊維=
15/85〜85/15(重量%)であることが、複合
糸の伸長性、芯部カバー性、精紡操業性の点から好まし
い。
The composite ratio between the side-by-side type composite fiber yarn and the staple fiber is as follows: side-by-side type composite fiber yarn / short fiber =
The ratio of 15/85 to 85/15 (% by weight) is preferable from the viewpoints of the elongation of the composite yarn, the core portion coverability, and the spinning operability.
【0031】次に本発明の長短複合糸の製造方法につい
て説明する。
Next, the method for producing the long and short composite yarn of the present invention will be described.
【0032】例えば、サイドバイサイド型複合繊維糸と
ポリエステル短繊維をリング精紡機を用いて合体し、長
短複合糸の芯部にサイドバイサイド型複合繊維糸を、表
面にポリエステル短繊維を出現させるためには撚り合わ
せ時における2成分の供給速度に一定の差を維持するよ
うに合体することが好ましい。サイドバイサイド型複合
繊維糸とポリエステル短繊維のフロントローラーからの
送り出し速度をそれぞれVf、Vsとすると、2成分の
速度関係はVf<Vsにあり、Vs=L・Vf(L:係
数)においてL=1.01〜1.025のとするのが好
ましい。定数Lはサイドバイサイド型複合繊維糸とポリ
エステル短繊維との混合比率や、ヨリ係数などによって
定まるものである。
For example, the side-by-side type composite fiber yarn and the polyester short fiber are combined using a ring spinning machine, and the side-by-side type composite fiber yarn is formed on the core of the long and short composite yarn and the polyester short fiber is formed on the surface by twisting. It is preferable that the two components are combined so as to maintain a constant difference in the supply speed of the two components during the combination. Assuming that the sending speeds of the side-by-side type composite fiber yarn and the polyester staple fiber from the front roller are Vf and Vs, respectively, the speed relationship between the two components is Vf <Vs, and L = 1 when Vs = L · Vf (L: coefficient). It is preferably from 0.01 to 1.025. The constant L is determined by the mixing ratio of the side-by-side type composite fiber yarn and the polyester short fiber, the twist coefficient, and the like.
【0033】一方、長短複合糸の表面にサイドバイサイ
ド型複合繊維糸を出現させるには、2成分のフロントロ
ーラーからの送り込み速度をVf>Vsとし、L=0.
97〜0.99のとするのが好ましい。
On the other hand, to make the side-by-side type composite fiber yarn appear on the surface of the long and short composite yarn, the feeding speed from the two-component front roller is set to Vf> Vs, and L = 0.
It is preferably 97 to 0.99.
【0034】更に詳細に図面に基づいて以下に説明す
る。図3は、本発明の長短複合糸を得るための概略図で
ある。短繊維成分の粗糸1はバックローラー2、エプロ
ンローラー3、フロントローラー4に順次供給されフリ
ース10を得る。長短複合糸の表面にポリエステル短繊
維を出現させるには、フロントボトムローラー9の上部
のフロントトップローラー4は大径、小径部を有するの
段付きローラーとする。一方、サイドバイサイド型複合
繊維糸6は張力測定装置(テンサー)7を経てフィード
装置5を通り、フロントトップローラー4の小径部8と
フロントボトムローラーの隙間を通過後、前記フリース
10と合体させ、ヨリにより収束させ管糸に巻き取る。
フリース10の送り出し速度Vsとサイドバイサイド型
複合繊維糸の供給速度Vfの関係Vs>Vfになるよう
フロントボトムローラー9の速度とフィード装置5の速
度を同期させる。
This will be described in more detail below with reference to the drawings. FIG. 3 is a schematic view for obtaining the long and short composite yarn of the present invention. The roving 1 of the short fiber component is sequentially supplied to the back roller 2, the apron roller 3, and the front roller 4 to obtain the fleece 10. In order to make polyester short fibers appear on the surface of the long and short composite yarn, the front top roller 4 above the front bottom roller 9 is a stepped roller having a large diameter and a small diameter. On the other hand, the side-by-side type composite fiber yarn 6 passes through the feed device 5 via the tension measuring device (tenser) 7, passes through the gap between the small diameter portion 8 of the front top roller 4 and the front bottom roller, and is combined with the fleece 10. And wound up on a tube thread.
The speed of the front bottom roller 9 and the speed of the feed device 5 are synchronized so that the relationship Vs> Vf between the feed speed Vs of the fleece 10 and the feed speed Vf of the side-by-side type composite fiber yarn is satisfied.
【0035】一方、長短複合糸の表面にサイドバイサイ
ド型複合繊維糸を出現させるには、2成分のフロントロ
ーラーからの送り込み速度をVf>Vsとするとよい。
On the other hand, in order to make the side-by-side type composite fiber yarn appear on the surface of the long and short composite yarn, the feed speed from the two-component front roller may be Vf> Vs.
【0036】サイドバイサイド型複合繊維糸は優れた伸
縮性と回復性を持つため、フロントトップローラから送
り出された直後にストレッチバックし、他方の短繊維フ
リースを巻き込みながらヨリがかかり絡み合い、芯成分
と鞘成分が分離することなく芯鞘状態に強固に取り巻
き、芯鞘構造の形態安定性に優れた長短複合糸となるま
た、長短複合糸の製造方法としては、前述の芯鞘型製造
方式に限定されるのものではなく、精紡交撚方式であっ
ても良い。
Since the side-by-side type composite fiber yarn has excellent stretchability and recoverability, it is stretched back immediately after being sent out from the front top roller, twisted and wound while the other short fiber fleece is being wound, and the core component and the sheath are entangled. The components are firmly surrounded in a core-sheath state without separation, resulting in a long-short composite yarn having excellent core-sheath structure stability.The method for producing long-short composite yarn is limited to the above-described core-sheath type manufacturing method. Instead, a spinning twisting method may be used.
【0037】[0037]
【実施例】以下、本発明を実施例で詳細に説明する。The present invention will be described below in detail with reference to examples.
【0038】(測定方法) (1)伸長回復率 自記記録装置付定速伸長型引張試験機を用い、1デシテ
ックス当たり0.0826cNの初荷重をかけた状態で
20cmのつかみの間隔に取り付け、引張速度を20cm/
minとして、20%の伸度まで引き伸ばし、直ちに、
同じ速度で除重した。完全に除重した後、直ちに、初荷
重まで引き伸ばし、このときの回復伸びを伸長回復率と
した。
(Measurement method) (1) Elongation recovery rate Using a constant-speed elongation type tensile tester equipped with a self-recording device, an initial load of 0.0826 cN per decitex is applied, and the elongation is attached at a 20 cm gap between grips. Speed 20cm /
As min, stretch to 20% elongation and immediately
Deweighted at the same speed. Immediately after the weight was completely removed, it was immediately stretched to the initial load.
【0039】(2)織物伸長率 JIS L−1096の伸長率A法(定速伸長法)で測
定した。
(2) Elongation rate of woven fabric The elongation rate was measured by the method A (constant speed elongation method) of JIS L-1096.
【0040】(実施例1)固有粘度(IV)が1.40
のホモPTTと固有粘度(IV)が0.60のホモPE
Tをそれぞれ別々に溶融し、紡糸温度275℃で24孔
の複合紡糸口金から複合比(重量%)50:50で吐出
し、紡糸速度1400m/分で引取り165デシテック
ス、24フィラメントのサイドバイサイド型複合構造未
延伸糸(繊維断面は図2に示すようなダルマ型断面)を
得た。さらにホットロール−熱板系延伸機(接糸長:2
0cm、表面粗度:3S)を用い、ホットロール温度7
5℃、熱板温度170℃、延伸倍率3.3倍で延伸し次
いで一旦引き取ることなく、連続して0.9倍でリラッ
クスして巻き取り、55デシテックス、24フィラメン
トの延伸糸を得た。紡糸、延伸とも製糸性は良好であ
り、糸切れは発生しなかった。
Example 1 Intrinsic viscosity (IV) is 1.40
Homo PTT and homo PE having an intrinsic viscosity (IV) of 0.60
T is melted separately and discharged at a spinning temperature of 275 ° C. from a 24-hole composite spinneret at a composite ratio (% by weight) of 50:50, taken off at a spinning speed of 1400 m / min, and 165 decitex, 24 filament side-by-side composite. A structural undrawn yarn (a fiber cross section was a Dharma type cross section as shown in FIG. 2) was obtained. Further, a hot roll-hot plate stretching machine (yarn length: 2
0cm, surface roughness: 3S), hot roll temperature 7
The film was stretched at 5 ° C., a hot plate temperature of 170 ° C., and a draw ratio of 3.3 times, and then continuously wound relaxed at 0.9 times without being taken off, to obtain a drawn yarn of 55 dtex and 24 filaments. Both spinning and drawing exhibited good spinnability, and no yarn breakage occurred.
【0041】得られたサイドバイサイド型複合繊維の持
性は、 伸長回復率 :85.5% と優れた伸長回復性を示した。
With respect to the durability of the obtained side-by-side type conjugate fiber, an excellent elongation / recovery property was obtained with an elongation / recovery rate of 85.5%.
【0042】次に、長短複合糸の短繊維としてポリエス
テル1.5d×38mm、100%で通常の紡績方式を経
て、0.5g/mの粗糸を作成し、精紡機に仕掛け、図
3、図4に示す段付きトップローラの大径部に通しフリ
ースを紡出した。一方、前述のサイドバイサイド型複合
繊維糸をそれぞれクリールに仕掛け、張力調整装置(テ
ンサー)を経てフィード装置を通り、段付きトップロー
ラーの小径部とボトムローラーの隙間を通過させ、前述
フリースと組み合わせ合体し、ヨリ数14.8T/in
(K=3.2)でリング・トラベラーを通し、管糸に巻
き取った。この時フリースおよびサイドバイサイド型複
合繊維糸のフィード装置からの送り出し速度比はVs/
Vf=1.03とし、芯成分がサイドバイサイド型複合
繊維糸、鞘成分が短繊維である番手30sの本発明の長
短複合糸を得た。
Next, as a short fiber of the long and short composite yarn, a roving yarn of 0.5 g / m was prepared through a normal spinning method using polyester 1.5d × 38 mm, 100%, and set on a spinning machine. The fleece was spun through the large diameter portion of the stepped top roller shown in FIG. On the other hand, the above-mentioned side-by-side type composite fiber yarn is set on a creel, passes through a feed device through a tension adjusting device (tenser), passes through a gap between a small diameter portion of a stepped top roller and a bottom roller, and is combined with the above-mentioned fleece and combined. , Number of twists 14.8T / in
At (K = 3.2), it passed through a ring traveler and was wound on a tube thread. At this time, the feed speed ratio of the fleece and side-by-side type composite fiber yarn from the feed device is Vs /
With Vf = 1.03, a long-short composite yarn of the present invention having a count of 30 s and having a core component of a side-by-side type composite fiber yarn and a sheath component of a short fiber was obtained.
【0043】得られた長短複合糸の伸長回復率を測定し
た結果、 伸長回復率 :75.7% と優れた伸長回復性を示し、ソフトストレッチ性、回復
性、毛羽感に富み、芯成分と鞘成分の絡合性に富み、ヌ
ードヤーンの発生もなく芯鞘型構造の形態安定性に優れ
たものであった。
As a result of measuring the elongation recovery rate of the obtained long and short composite yarns, the elongation recovery rate was 75.7%, showing excellent elongation recovery properties, and was excellent in soft stretch properties, recovery properties, fluffiness, and core component. The sheath component was rich in entanglement, and the core-sheath type structure was excellent in morphological stability without generation of nude yarn.
【0044】(布帛評価)上記の長短複合糸を経糸と緯
糸の両方に使用し、2/2綾組織の織物を109×73
本/2.54cmの生機密度で製織し、本発明の長短複
合紡績糸からなる織物を得た。ネップの発生はなく、工
程通過性は良好であった。
(Evaluation of Cloth) The above-mentioned long and short composite yarns were used for both the warp and the weft, and the woven fabric having a 2/2 twill structure was 109 × 73.
The woven fabric was woven at a density of greige of 2.54 cm to obtain a woven fabric composed of the long and short composite spun yarns of the present invention. No nep was generated, and the process passability was good.
【0045】得られた生機をオープンソーパーで95℃
でリラックス熱処理し、乾燥後、乾熱180℃で中間セ
ットし、120℃で染色した。その後160℃の乾熱で
ピンテンター方式により仕上セットした。仕上反の密度
は経緯で145×92本/2.54cmであった。
The obtained greige was 95 ° C. with an open soaper.
After the heat treatment, drying was carried out, and the resulting product was set at 180 ° C. in the middle of dry heat and dyed at 120 ° C. Then, it was finished and set by dry heat of 160 ° C. by a pin tenter method. The density of the finished fabric was 145 × 92 / 2.54 cm in process.
【0046】得られた織物の表面は官能評価の結果、経
緯方向にソフトなストレッチを有し、シボが無く、滑ら
かで光沢があり、かつソフト風合いを有する織物であっ
た。また、この織物の織物伸張率を測定した結果、経方
向は20%、緯方向は25%であった。
As a result of a sensory evaluation, the surface of the obtained woven fabric was found to have a soft stretch in the weft direction, no grain, a smooth, glossy, and soft texture. Also, as a result of measuring the woven fabric elongation, the warp direction was 20% and the weft direction was 25%.
【0047】(実施例2)実施例1と同様なサイドバイ
サイド型複合繊維糸と短繊維を用い、フリースおよびサ
イドバイサイド型複合繊維糸のフィード装置からの送り
出し速度比をVs/Vf=0.97とし、芯成分が短繊
維、鞘成分がサイドバイサイド型複合繊維糸である番手
30sの本発明の長短複合糸を得た。
(Example 2) Using the same side-by-side type composite fiber yarn and short fiber as in Example 1, the feed speed ratio of the fleece and side-by-side type composite fiber yarn from the feeder was set to Vs / Vf = 0.97. A long and short composite yarn of the present invention having a count of 30 s, in which the core component was a short fiber and the sheath component was a side-by-side type composite fiber yarn, was obtained.
【0048】得られた長短複合糸の伸長回復率を測定し
た結果、 伸長回復率 :42.4% であり、ソフトストレッチ性に富み、糸スジが良好で、
実施例1と同様に、芯成分と鞘成分の拘束性に優れたも
のであった。
As a result of measuring the elongation recovery rate of the obtained long and short composite yarn, the elongation recovery rate was 42.4%.
As in Example 1, the core component and the sheath component were excellent in constraint.
【0049】(布帛評価)上記の長短複合糸を経糸と緯
糸の両方に使用し、実施例1と同条件で製織、染色加工
を行った結果、得られた織物の表面は官能評価の結果、
ストレッチ性が良好で、ソフト風合いであった。また、
この織物の織物伸張率を測定した結果、経方向は13
%、緯方向は19%であった。
(Evaluation of Fabric) As a result of weaving and dyeing using the above-mentioned long and short composite yarns for both warp and weft under the same conditions as in Example 1, the surface of the obtained woven fabric was subjected to sensory evaluation.
It had good stretchability and soft texture. Also,
As a result of measuring the stretch ratio of the woven fabric, the warp direction was 13
%, And the weft direction was 19%.
【0050】(比較例1)極限粘度が0.40のホモP
ETと、極限粘度が0.75のホモPETとを、それぞ
れ別々に溶融し、紡糸温度295℃で12孔の複合紡糸
口金から複合比(重量%)50:50で吐出し、紡糸速
度1450m/分で引取り145デシテックス、12フ
ィラメントのサイドバイサイド型複合構造未延伸糸を得
た。さらに実施例1で用いたのと同様のホットロール−
熱板系延伸機を用い、ホットロール温度89℃、熱板温
度150℃、延伸倍率2.63倍で延伸し、次いで一旦
引き取ることなく、連続して次のリラックス率でリラッ
クスして巻き取りを試みた。
Comparative Example 1 Homo P having an intrinsic viscosity of 0.40
ET and homo PET having an intrinsic viscosity of 0.75 were separately melted and discharged at a spinning temperature of 295 ° C. from a 12-hole composite spinneret at a composite ratio (% by weight) of 50:50, and a spinning speed of 1450 m / A 145 dtex, 12 filaments side-by-side composite structure undrawn yarn was obtained. Further, the same hot roll as used in Example 1
Using a hot plate stretching machine, stretch at a hot roll temperature of 89 ° C., a hot plate temperature of 150 ° C., and a draw ratio of 2.63 times, and then successively relax and rewind at the next relaxation rate without taking off once. Tried.
【0051】リラックス率が0.9倍の場合、ホットロ
ール上で逆巻きが発生し、糸切れが多発した。
When the relaxation rate was 0.9, reverse winding occurred on the hot roll, and thread breakage occurred frequently.
【0052】次にリラックス率を0.95倍にして巻き
取りを試みたが同様に逆巻きし、糸切れが発生した。
Next, winding was attempted with the relaxation rate set to 0.95 times, but the winding was reversed in the same manner, and thread breakage occurred.
【0053】そこで、リラックス率1倍(弛緩無し)に
して巻き取り、55デシテックス、12フィラメントの
延伸糸を得た。
Then, winding was performed at a relaxation rate of 1 (no relaxation) to obtain a drawn yarn of 55 dtex and 12 filaments.
【0054】得られた潜在捲縮性ポリエステル複合繊維
の持性は伸長回復率39.4%であった。
The durability of the latently-crimpable polyester composite fiber obtained was 39.4%.
【0055】次に、実施例1と同様の短繊維と合体さ
せ、芯成分が潜在捲縮性ポリエステル複合繊維、鞘成分
が短繊維である番手30sの長短複合糸を得た。得られ
た長短複合糸の伸長回復率を測定した結果、伸長回復率
:25.4%であり、ストレッチ性、膨らみ感、ソフ
ト感としても満足のいくものではなく、また芯鞘構造の
形態安定性に欠け、所々でヌードヤーンが見受けられ
た。
Next, the same short fibers as in Example 1 were combined to obtain a 30-s long-short composite yarn having a core component of a latently crimpable polyester composite fiber and a sheath component of a short fiber. As a result of measuring the elongation recovery rate of the obtained long and short composite yarn, the elongation recovery rate was 25.4%, which was not satisfactory in stretchability, swelling feeling and soft feeling, and was stable in the form of the core-sheath structure. Lacking sex, nude yarn was found in some places.
【0056】(布帛評価)引き続いて、経糸と緯糸の両
方にこの長短複合糸を使用し、実施例1と同規格で製織
したが、しごきによるネップが発生した。
(Evaluation of Cloth) Subsequently, this long and short composite yarn was used for both the warp and the weft, and the fabric was woven according to the same standard as in Example 1. However, nep due to ironing occurred.
【0057】得られた生機を実施例1と同条件で染色加
工し、織物伸張率を測定した結果、経方向は2%、緯方
向は3%と、伸長性に欠け、ヌードヤーンによる白スジ
が見受けられた。
The obtained greige was dyed under the same conditions as in Example 1 and the elongation of the fabric was measured. As a result, the warp direction was 2% and the weft direction was 3%. Was found.
【0058】(比較例2)比較例1と同様な潜在捲縮性
ポリエステル複合繊維と実施例1と同様の短繊維と合体
させ、芯成分が短繊維、鞘成分が潜在捲縮性ポリエステ
ル複合繊維である番手30sの長短複合糸を得た。得ら
れた長短複合糸の伸長回復率を測定した結果、伸長回復
率 :21.2%で、ストレッチ性膨らみ感、ソフト感
としても満足のいくものではなかった。
(Comparative Example 2) A latently crimped polyester composite fiber similar to Comparative Example 1 and a short fiber similar to Example 1 were combined, and the core component was a short fiber and the sheath component was a latently crimpable polyester composite fiber. 30 s long and short composite yarn having a count of 30 s was obtained. As a result of measuring the elongation recovery rate of the obtained long and short composite yarn, the elongation recovery rate was 21.2%, and the stretched swelling feeling and the soft feeling were not satisfactory.
【0059】(布帛評価)引き続いて、経糸と緯糸の両
方にこの長短複合糸を使用し、実施例1と同規格で製織
したが、しごきによるネップが発生した。
(Evaluation of Cloth) Subsequently, this long and short composite yarn was used for both the warp and the weft, and the fabric was woven according to the same standard as in Example 1. However, nep due to ironing occurred.
【0060】得られた生機を実施例1と同条件で染色加
工し、織物伸張率を測定した結果、経方向は2%、緯方
向は3%と、伸長性に欠けるものであった。
The obtained greige was dyed under the same conditions as in Example 1 and the elongation of the woven fabric was measured. As a result, the warp direction was 2% and the weft direction was 3%.
【0061】(比較例3)極限粘度が0.89のホモP
TTを溶融し、紡糸温度260℃で24孔の丸紡糸口金
から吐出し、紡糸速度1800m/分で引取り145デ
シテックス、24フィラメントの未延伸糸を得た。さら
に実施例1で用いたのと同様のホットロール−熱板系延
伸機を用い、ホットロール温度89℃、熱板温度150
℃、延伸倍率2.63倍で延伸し、次いで一旦引き取る
ことなく、連続して0.9倍でリラックスして巻き取
り、55デシテックス、24フィラメントの延伸糸を得
た。
Comparative Example 3 Homo P having an intrinsic viscosity of 0.89
The TT was melted, discharged from a 24-hole round spinneret at a spinning temperature of 260 ° C., and taken off at a spinning speed of 1800 m / min to obtain an undrawn yarn of 145 decitex and 24 filaments. Further, using the same hot roll-hot plate stretching machine as used in Example 1, the hot roll temperature was 89 ° C. and the hot plate temperature was 150.
The film was stretched at a draw ratio of 2.63 times at ℃, and then continuously wound relaxed at 0.9 times without being taken off, to obtain a stretched yarn of 55 dtex and 24 filaments.
【0062】得られたPTT繊維の持性は伸長回復率8
1.3%と優れた伸長回復性を示したが、捲縮の位相は
マルチフィラメントを構成する単糸間で揃っていた。
The PTT fiber obtained had an elongation recovery rate of 8
Although excellent elongation recovery was shown at 1.3%, the crimping phases were uniform among the single yarns constituting the multifilament.
【0063】次に、実施例1と同様の短繊維と合体さ
せ、芯成分がPPT繊維、鞘成分が短繊維である番手3
0sの長短複合糸を得た。得られた長短複合糸の伸長回
復率を測定した結果、伸長回復率 :69.3%と伸長
回復性に富んだものであったが、ソフト感としても満足
のいくものでなく、またヌードヤーンがみられ、芯鞘構
造の形態安定性としても不十分であった。
Next, the same short fibers as in Example 1 were combined, and the core component was PPT fiber and the sheath component was short fiber.
A long and short composite yarn of 0 s was obtained. As a result of measuring the elongation recovery rate of the obtained long and short composite yarns, the elongation recovery rate was 69.3%, which was rich in elongation recovery properties, but was not satisfactory as a soft feeling, and was a nude yarn. However, the morphological stability of the core-sheath structure was insufficient.
【0064】(布帛評価)引き続いて、経糸と緯糸の両
方にこの長短複合糸を使用し、実施例1と同規格で製織
したが、しごきによるネップが発生した。
(Evaluation of Cloth) Subsequently, this long and short composite yarn was used for both the warp and the weft, and the fabric was woven according to the same standard as in Example 1. However, nep due to ironing occurred.
【0065】得られた生機を実施例1と同条件で染色加
工し、織物伸張率を測定した結果、経方向は19%、緯
方向は22%とストレッチ性を有したものではあった
が、織物表面に凹凸感のあるシボが発生した。
The obtained greige was dyed under the same conditions as in Example 1 and the elongation of the fabric was measured. As a result, the greige was 19% in the warp direction and 22% in the weft direction. An uneven grain was generated on the woven fabric surface.
【0066】[0066]
【発明の効果】本発明により、優れたソフトストレッチ
性と回復性および、膨らみ感と芯鞘構造の形態安定性を
有する長短複合糸を提供することができる。
According to the present invention, it is possible to provide a long-short composite yarn having excellent soft stretchability and recoverability, swelling and core-sheath structure stability.
【図面の簡単な説明】[Brief description of the drawings]
【図1】本発明の長短複合糸の横断面形状の1例を示す
図である。
FIG. 1 is a view showing one example of a cross-sectional shape of a long and short composite yarn of the present invention.
【図2】本発明のサイドバイサイド型複合繊維の横断面
形状の1例を示す図である。
FIG. 2 is a view showing an example of a cross-sectional shape of the side-by-side type conjugate fiber of the present invention.
【図3】本発明の長短複合糸を得るための製造方法の1
例をモデル的に示す側面概略図である。
FIG. 3 shows a production method 1 for obtaining a long and short composite yarn of the present invention.
It is a side schematic diagram which shows an example modelly.
【図4】本発明の長短複合糸を得るための製造方法の1
例をモデル的に示す要部正面拡大図である。
FIG. 4 is a view showing a production method 1 for obtaining a long and short composite yarn of the present invention.
It is a principal part front enlarged view which shows an example modelically.
【符号の説明】[Explanation of symbols]
イ:サイドバイサイド型複合繊維 ロ:短繊維成分 ハ:ポリトリメチレンテレフタレート ニ:ポリエチレンテレフタレート 1:粗糸 2:バックローラー 3:エプロンローラー 4:フロントローラー 5:フィード装置 6:サイドバイサイド型複合繊維糸 7:張力調整装置(テンサー) 8:フロントトップローラ小径部 9:フロントボトムローラー 10:フリース A: Side-by-side type composite fiber B: Short fiber component C: Polytrimethylene terephthalate d: Polyethylene terephthalate 1: Roving yarn 2: Back roller 3: Apron roller 4: Front roller 5: Feed device 6: Side-by-side type composite fiber yarn 7: Tension adjusting device (tenser) 8: Small diameter part of front top roller 9: Front bottom roller 10: Fleece
───────────────────────────────────────────────────── フロントページの続き Fターム(参考) 4L036 MA05 MA17 MA33 MA35 PA01 PA03 RA24 UA01 UA07 4L048 AA20 AA30 AA51 AB18 AB19 AC12 BA01 BA02 CA04 CA12 CA15 EB05  ──────────────────────────────────────────────────の Continued on the front page F term (reference) 4L036 MA05 MA17 MA33 MA35 PA01 PA03 RA24 UA01 UA07 4L048 AA20 AA30 AA51 AB18 AB19 AC12 BA01 BA02 CA04 CA12 CA15 EB05

Claims (6)

    【特許請求の範囲】[Claims]
  1. 【請求項1】一方がポリトリメチレンテレフタレートを
    主体としたポリエステルである2種類のポリエステル系
    重合体を繊維長さ方向に沿ってサイドバイサイド型に貼
    り合わせた複合繊維のフィラメントと短繊維を有する長
    短複合糸。
    1. A long-short composite having a filament of a conjugate fiber and a short fiber in which two kinds of polyester polymers, one of which is a polyester mainly composed of polytrimethylene terephthalate, are bonded in a side-by-side type along a fiber length direction. yarn.
  2. 【請求項2】サイドバイサイド型に貼り合わせた複合繊
    維ポリエステルフィラメントを芯部とし、短繊維を鞘部
    とする請求項1記載の長短複合糸。
    2. The long-short composite yarn according to claim 1, wherein the composite fiber polyester filament bonded in a side-by-side type has a core portion and the short fibers have a sheath portion.
  3. 【請求項3】短繊維を芯部とし、サイドバイサイド型に
    貼り合わせた複合繊維ポリエステルフィラメントを鞘部
    とする請求項1記載の長短複合糸。
    3. The long and short conjugate yarn according to claim 1, wherein the staple fiber is used as a core and the conjugate fiber polyester filament bonded in a side-by-side type is used as a sheath.
  4. 【請求項4】ポリエステルフィラメント糸条と短繊維束
    の複合比率が、ポリエステルフィラメント糸条/短繊維
    束=15/85〜85/15(重量%)であることを特
    徴とする請求項1から3のいずれか記載の長短複合糸。
    4. The polyester filament yarn / short fiber bundle has a composite ratio of polyester filament yarn / short fiber bundle = 15 / 85-85 / 15 (% by weight). The long and short composite yarn according to any one of the above.
  5. 【請求項5】サイドバイサイド型複合繊維の20%伸張
    時の伸長回復率が80%以上である請求項1から4のい
    ずれか記載の長短複合糸。
    5. The long and short composite yarn according to claim 1, wherein the recovery rate of the side-by-side type composite fiber at 20% elongation is 80% or more.
  6. 【請求項6】請求項1から5のいずれか記載の長短複合
    糸を経糸および緯糸の少なくとも一方に用い、当該複合
    糸を用いた方向の織物伸長率が10%以上であるポリエ
    ステル系ストレッチ織物。
    6. A polyester stretch woven fabric, wherein the long and short conjugate yarn according to any one of claims 1 to 5 is used for at least one of a warp and a weft, and a woven fabric elongation in a direction in which the conjugate yarn is used is 10% or more.
JP2001056295A 2001-03-01 2001-03-01 Long and short composite yarn and polyester-based stretchable woven fabric Pending JP2002266180A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2001056295A JP2002266180A (en) 2001-03-01 2001-03-01 Long and short composite yarn and polyester-based stretchable woven fabric

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2001056295A JP2002266180A (en) 2001-03-01 2001-03-01 Long and short composite yarn and polyester-based stretchable woven fabric

Publications (1)

Publication Number Publication Date
JP2002266180A true JP2002266180A (en) 2002-09-18

Family

ID=18916339

Family Applications (1)

Application Number Title Priority Date Filing Date
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Country Status (1)

Country Link
JP (1) JP2002266180A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008015743A1 (en) * 2006-08-02 2008-02-07 Toray Industries, Inc. Textiles

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04343701A (en) * 1991-05-16 1992-11-30 Toyobo Co Ltd Interlining base fabric having stretchability
JPH11189923A (en) * 1997-12-22 1999-07-13 Asahi Chem Ind Co Ltd Polyester conjugate fiber
JP2000220049A (en) * 1999-01-28 2000-08-08 Unitika Ltd Long-short composite spun yarn having latent elastic characteristic
JP2002242037A (en) * 2001-02-19 2002-08-28 Asahi Kasei Corp Composite yarn

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04343701A (en) * 1991-05-16 1992-11-30 Toyobo Co Ltd Interlining base fabric having stretchability
JPH11189923A (en) * 1997-12-22 1999-07-13 Asahi Chem Ind Co Ltd Polyester conjugate fiber
JP2000220049A (en) * 1999-01-28 2000-08-08 Unitika Ltd Long-short composite spun yarn having latent elastic characteristic
JP2002242037A (en) * 2001-02-19 2002-08-28 Asahi Kasei Corp Composite yarn

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008015743A1 (en) * 2006-08-02 2008-02-07 Toray Industries, Inc. Textiles

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