JP2003020520A - Aliphatic polyester thick and thin yarn and method for producing the same - Google Patents

Aliphatic polyester thick and thin yarn and method for producing the same

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Publication number
JP2003020520A
JP2003020520A JP2001209480A JP2001209480A JP2003020520A JP 2003020520 A JP2003020520 A JP 2003020520A JP 2001209480 A JP2001209480 A JP 2001209480A JP 2001209480 A JP2001209480 A JP 2001209480A JP 2003020520 A JP2003020520 A JP 2003020520A
Authority
JP
Japan
Prior art keywords
yarn
thick
thin
aliphatic polyester
elongation
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
JP2001209480A
Other languages
Japanese (ja)
Inventor
Yuko Ishii
祐子 石居
Masayuki Sato
正幸 佐藤
Masahide Matsumura
正英 松村
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 JP2001209480A priority Critical patent/JP2003020520A/en
Publication of JP2003020520A publication Critical patent/JP2003020520A/en
Pending legal-status Critical Current

Links

Abstract

PROBLEM TO BE SOLVED: To provide an aliphatic polyester thick and thin yarn having an conventionally unobtainable natural moire feeling and excellent bright color developing properties, dry feeling, soft feeling and high-order passableness. SOLUTION: This aliphatic polyester thick and thin yarn comprises an aliphatic polyester having >=100 deg.C melting point and has thick and thin parts having 2-10% U% in the yarn longitudinal direction, 4-25% boiling water shrinkage percentage, 0.1-5 cm pitch of the thick and thin parts and >=3 tangles/m in the fiber longitudinal direction. For further detail, the aliphatic polyester thick and thin yarn has <=1.1 μd coefficient of yarn-specular surface friction.

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】本発明は糸長手方向に太細を
有する生糸使用可能で薄地織編物用途に好適で、高次通
過性が良好な脂肪族ポリエステル太細糸に関するもので
あり、更に詳しくは、太細のピッチが短く分散してお
り、太細のコントラストを小さくすることによって、自
然な杢調を表現することが可能な脂肪族ポリエステル太
細糸に関するものである。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an aliphatic polyester thick and thin yarn which can be used as raw yarn having a fineness in the longitudinal direction of the yarn, is suitable for use in a thin woven or knitted fabric, and has a high high-order passability. The present invention relates to an aliphatic polyester thick yarn in which thick and thin pitches are shortly dispersed and a natural heathered tone can be expressed by reducing the contrast of thick and thin.
【0002】[0002]
【従来の技術】ポリエチレンテレフタレートを初めとす
る芳香族ポリエステルは、機械的特性や、各種堅牢度に
優れるため、衣料用途に広く用いられている。従来、こ
れら芳香族ポリエステルに関しては、特開昭50−18
717号公報や特開昭52−103527号公報などに
よって繊維軸方向に直径の変化を有する芳香族ポリエス
テル繊維が知られている。このような太細を有する芳香
族ポリエステル繊維からなる布帛においては、染色した
際に濃淡差が発現し、杢調の外観となる。
2. Description of the Related Art Aromatic polyesters such as polyethylene terephthalate are widely used for clothing because of their excellent mechanical properties and various fastnesses. Conventionally, regarding these aromatic polyesters, JP-A-50-18 is known.
Aromatic polyester fibers having a diameter change in the fiber axis direction are known from Japanese Patent No. 717 and Japanese Patent Laid-Open No. 52-103527. In a cloth made of such an aromatic polyester fiber having a large and small thickness, when it is dyed, a difference in shade appears, resulting in a heathered appearance.
【0003】一方、テレフタル酸を主たるカルボン酸成
分とするこれら芳香族ポリエステルは、自然環境中にお
ける耐久性が極めて高く、自然環境中で容易に分解しな
いため、廃棄に際しては焼却処理を行わない限り半永久
的に残存してしまうという欠点がある。また、ポリエチ
レンテレフタレートはその屈折率が比較的高いため、総
じて鮮明な発色性が得られず、染織編品の品位が低いと
いう欠点も有していた。
On the other hand, these aromatic polyesters containing terephthalic acid as the main carboxylic acid component have extremely high durability in the natural environment and do not easily decompose in the natural environment. Therefore, they are semi-permanent unless they are incinerated at the time of disposal. However, there is a drawback that it remains. In addition, since polyethylene terephthalate has a relatively high refractive index, it has a drawback that it cannot obtain clear color development as a whole and that the quality of the dyed or knitted fabric is low.
【0004】また一方、生分解性を有するポリエステル
としてポリ乳酸を主成分とする生分解性ポリエステルに
着目した結果、その糸−鏡面摩擦係数が大変高く、製織
時にオサとの摩擦により整経毛羽、製織毛羽が多発する
ことが判明した。
On the other hand, as a result of paying attention to biodegradable polyester containing polylactic acid as a main component as the biodegradable polyester, the yarn-mirror coefficient of friction is very high, and warp warps due to friction with the lure during weaving, It was found that weaving fluffs frequently occurred.
【0005】[0005]
【発明が解決しようとする課題】本発明の目的は、従来
技術では達成できなかった、太細のピッチが分散してお
り、自然な杢感のある脂肪族ポリエステル太細糸であ
り、整経、製織時の毛羽の発生を低減でき、さらに衣料
用織編物とした際にドライ感、ソフト感に優れた新たな
杢調素材を提供することにある。
The object of the present invention is an aliphatic polyester thick yarn having a thick and fine pitch dispersed therein, which is not achieved in the prior art, and which has a natural feeling of warping. Another object of the present invention is to provide a new heat-tone material which can reduce the generation of fluff during weaving and which is excellent in dry feeling and soft feeling when used as a woven or knitted fabric for clothing.
【0006】[0006]
【課題を解決するための手段】本発明の目的は、融点が
100℃以上の脂肪族ポリエステルからなる繊維であっ
て、糸長手方向にU%が2〜10%の太細を有し、沸水
収縮率が4〜25%、太細ピッチが0.1〜5cm、糸
長手方向に交絡が3コ/m以上であることを特徴とする
脂肪族ポリエステル太細糸によって達成できる。ここ
で、融点が100℃以上の脂肪族ポリエステルとして
は、L−乳酸を主成分とするポリエステルを好ましく用
いることができる。
The object of the present invention is a fiber made of an aliphatic polyester having a melting point of 100 ° C. or higher, having a U% of 2 to 10% in the longitudinal direction of the yarn, and boiling water. It can be achieved by an aliphatic polyester thick and thin yarn characterized by having a shrinkage ratio of 4 to 25%, a thick and thin pitch of 0.1 to 5 cm, and an entanglement of 3 co / m or more in the yarn longitudinal direction. Here, as the aliphatic polyester having a melting point of 100 ° C. or higher, a polyester containing L-lactic acid as a main component can be preferably used.
【0007】また、本発明の脂肪族ポリエステル太細糸
は、太細のピッチを短く分散させることによって自然の
杢調を実現する。そのため、高配向未延伸糸に張力変動
を与えながら、(1+定応力伸長領域伸度(%)/10
0(%)×0.5)〜(1+定応力伸長領域伸度(%)
/100(%)×1.2)の倍率で不均一延伸し、加熱
処理ローラ上で加熱処理し、巻き取ることが望ましい。
Further, the aliphatic polyester thick and thin yarn of the present invention realizes a natural grain tone by dispersing the thick and thin pitches in a short manner. Therefore, (1 + constant stress elongation region elongation (%) / 10 while giving tension fluctuation to the highly oriented undrawn yarn
0 (%) x 0.5) to (1 + constant stress elongation area elongation (%)
/100(%)×1.2), it is preferable that the film is non-uniformly stretched, heat-treated on a heat-treatment roller, and wound.
【0008】[0008]
【発明の実施の形態】本発明で用いられる脂肪族ポリエ
ステルは、融点が100℃以上であることが必要であ
る。融点が100℃よりも低い場合には、単糸間の融着
の発生による延伸性不良や、染色加工時、熱セット時お
よび摩擦加熱時に溶融欠点が生じるなど、製品の品位が
著しく低いものとなるため、衣料用途に用いることがで
きない。脂肪族ポリエステルの融点は好ましくは150
℃以上であり、さらに好ましくは160℃以上である。
ここで融点とはDSC測定によって得られた溶融ピーク
のピーク温度を意味する。
BEST MODE FOR CARRYING OUT THE INVENTION The aliphatic polyester used in the present invention must have a melting point of 100 ° C. or higher. When the melting point is lower than 100 ° C., the product quality is extremely low, such as poor drawability due to fusion between single yarns, and melting defects during dyeing, heat setting and friction heating. Therefore, it cannot be used for clothing. The melting point of the aliphatic polyester is preferably 150
℃ or more, more preferably 160 ℃ or more.
Here, the melting point means the peak temperature of the melting peak obtained by the DSC measurement.
【0009】本発明では、このような脂肪族ポリエステ
ルを用いることによって芳香族ポリエステルとは異な
り、良好なソフト感を呈する。この良好なソフト感は、
脂肪族ポリエステル繊維のヤング率が芳香族ポリエステ
ル繊維のヤング率に比べ、明確に低いことに起因してい
る。
In the present invention, by using such an aliphatic polyester, unlike an aromatic polyester, a good soft feeling is exhibited. This good soft feeling is
This is because the Young's modulus of the aliphatic polyester fiber is clearly lower than that of the aromatic polyester fiber.
【0010】本発明で用いられる脂肪族ポリエステル
は、融点が100℃以上であれば、特段の制約はなく、
ポリ乳酸、ポリグリコール酸、ポリ−3−ヒドロキシプ
ロピオネート、ポリ−3−ヒドロキシブチレート、ポリ
−3−ヒドロキシブチレートバリレートなどのポリオキ
シ酸類、ポリエチレンサクシネート、ポリブチレンサク
シネートなどの脂肪族ジカルボン酸と脂肪族ジオールの
重縮合物類、およびこれらのブレンド物、変性物等を用
いることができる。これら脂肪族ポリエステル類は生物
分解性或いは加水分解性が高いため、自然環境中で容易
に分解されるという利点を有している。
The aliphatic polyester used in the present invention is not particularly limited as long as it has a melting point of 100 ° C. or higher.
Polylactic acids such as polylactic acid, polyglycolic acid, poly-3-hydroxypropionate, poly-3-hydroxybutyrate, poly-3-hydroxybutyrate valerate, and aliphatic such as polyethylene succinate and polybutylene succinate Polycondensates of dicarboxylic acids and aliphatic diols, and blends and modified products thereof can be used. Since these aliphatic polyesters are highly biodegradable or hydrolyzable, they have the advantage of being easily decomposed in the natural environment.
【0011】高融点、高耐熱性の観点から望ましい脂肪
族ポリエステルとしては、L−乳酸を主成分とするポリ
乳酸、およびグリコール酸を主成分とするポリグリコー
ル酸を挙げることができる。ポリ乳酸において、L−乳
酸を主成分とするとは、構成成分の60重量%以上がL
−乳酸からなっていることを意味し、40重量%を越え
ない範囲でD−乳酸を含有する脂肪族ポリエステルであ
ってもよい。
Preferred aliphatic polyesters from the viewpoint of high melting point and high heat resistance include polylactic acid containing L-lactic acid as a main component and polyglycolic acid containing glycolic acid as a main component. In polylactic acid, L-lactic acid as a main component means that 60% by weight or more of the constituents are L
-It means that it is composed of lactic acid, and it may be an aliphatic polyester containing D-lactic acid in a range not exceeding 40% by weight.
【0012】ポリ乳酸の製造方法には、乳酸を原料とし
て一旦環状二量体であるラクチドを生成せしめ、その後
開環重合を行う二段階のラクチド法と、乳酸を原料とし
て溶媒中で直接脱水縮合を行う一段階の直接重合法が知
られている。本発明で用いられるポリ乳酸は、いずれの
製法によって得られたポリ乳酸であってもよい。
The method for producing polylactic acid includes a two-step lactide method in which lactide, which is a cyclic dimer, is once produced from lactic acid as a raw material, and then ring-opening polymerization is carried out, and direct dehydration condensation in a solvent using lactic acid as a raw material. A one-step direct polymerization method for carrying out is known. The polylactic acid used in the present invention may be polylactic acid obtained by any production method.
【0013】ポリ乳酸の平均分子量は繊維の強度面から
高い方が好ましく、通常少なくとも5万、好ましくは少
なくとも10万、より好ましくは10〜30万である。
The average molecular weight of polylactic acid is preferably higher from the viewpoint of fiber strength, and is usually at least 50,000, preferably at least 100,000, more preferably 100,000 to 300,000.
【0014】また、本発明で用いられるポリ乳酸は、L
−乳酸、D−乳酸のほかにエステル形成能を有するその
他の成分を共重合したポリ乳酸であってもよい。共重合
可能な成分としては、グリコール酸、3−ヒドロキシ酪
酸、4−ヒドロキシ酪酸、4−ヒドロキシ吉草酸、6−
ヒドロキシカプロン酸などのヒドロキシカルボン酸類の
他、エチレングリコール、プロピレングリコール、ブタ
ンジオール、ネオペンチルグリコール、ポリエチレング
リコール、グリセリン、ペンタエリスリトール等の分子
内に複数の水酸基を含有する化合物類またはそれらの誘
導体、アジピン酸、セバシン酸、フタル酸、テレフタル
酸、イソフタル酸、2,6−ナフタレンジカルボン酸、
5−ナトリウムスルホイソフタル酸、5−テトラブチル
ホスホニウムイソフタル酸等の分子内に複数のカルボン
酸基を含有する化合物類またはそれらの誘導体が挙げら
れる。
The polylactic acid used in the present invention is L
In addition to lactic acid and D-lactic acid, polylactic acid obtained by copolymerizing other components having an ester forming ability may be used. As the copolymerizable component, glycolic acid, 3-hydroxybutyric acid, 4-hydroxybutyric acid, 4-hydroxyvaleric acid, 6-
In addition to hydroxycarboxylic acids such as hydroxycaproic acid, compounds containing plural hydroxyl groups in the molecule such as ethylene glycol, propylene glycol, butanediol, neopentyl glycol, polyethylene glycol, glycerin, pentaerythritol or their derivatives, adipine Acid, sebacic acid, phthalic acid, terephthalic acid, isophthalic acid, 2,6-naphthalenedicarboxylic acid,
Examples thereof include compounds having a plurality of carboxylic acid groups in the molecule such as 5-sodium sulfoisophthalic acid and 5-tetrabutylphosphonium isophthalic acid, or derivatives thereof.
【0015】また、本発明においては、溶融粘度を低減
させるため、ポリカプロラクトン、ポリブチレンサクシ
ネートおよびポリエチレンサクシネートのような脂肪族
ポリエステルポリマーを内部可塑剤として、あるいは外
部可塑剤として用いることができる。さらには、艶消し
剤、消臭剤、難燃剤、糸摩擦低減剤、抗酸化剤、着色顔
料等として無機微粒子や有機化合物を必要に応じて添加
することができる。
Further, in the present invention, in order to reduce the melt viscosity, an aliphatic polyester polymer such as polycaprolactone, polybutylene succinate and polyethylene succinate can be used as an internal plasticizer or an external plasticizer. . Furthermore, inorganic fine particles and organic compounds can be added as necessary as matting agents, deodorants, flame retardants, thread friction reducing agents, antioxidants, coloring pigments and the like.
【0016】本発明の脂肪族ポリエステル太細糸は糸長
手方向に太細を有し、その太細ムラの程度は後述するU
%測定法で測定して2〜10%の範囲にある必要があ
る。U%が2%未満であると染色織編物において太部に
対応する濃染部が点在してしまうため、太細コントラス
トによる杢調効果が十分でなくなってしまう。また、織
編物のふくらみを付与するためにもU%は4%以上がよ
り好ましい。一方U%は10%を超えると染色織編物全
体が濃色となり、杢調効果が十分でなくなってしまう。
良好な杢調効果を付与するにはU%が8%以下であるこ
とがより好ましい。
The aliphatic polyester thick and thin yarn of the present invention has a fineness in the longitudinal direction of the yarn, and the degree of thick and thin unevenness will be described later in U.
It should be in the range of 2 to 10% as measured by the% measurement method. If the U% is less than 2%, the deeply dyed portion corresponding to the thick portion is scattered in the dyed woven or knitted fabric, so that the gradation effect due to the thick and thin contrast becomes insufficient. Further, U% is more preferably 4% or more in order to impart a bulge to the woven or knitted material. On the other hand, if the U% exceeds 10%, the entire dyed woven or knitted fabric becomes a dark color, and the tone effect becomes insufficient.
U% is more preferably 8% or less in order to impart a good gradation effect.
【0017】本発明の太細糸の沸水収縮率は4〜25%
であることが必要である。沸水収縮率が4%未満になる
と織編物とした場合でのふくらみ付与効果が出しにく
く、25%を超えると織編物とした場合の精練、染色な
どで熱処理する際に異常に収縮し風合いが硬いものしか
得られず、更に収縮が大き過ぎて織編物を規定の幅に仕
上げにくくなる欠点がある。沸水収縮率を5〜18%と
するとよりふくらみがあり、より柔軟で良好な風合いの
織編物が得られる。
The boiling water shrinkage of the thick yarn of the present invention is 4 to 25%.
It is necessary to be. If the boiling water shrinkage ratio is less than 4%, it is difficult to obtain the effect of imparting swelling in the case of a woven or knitted product, and if it exceeds 25%, the woven or knitted product is abnormally shrunk during heat treatment such as scouring or dyeing, resulting in a hard texture. However, there is a drawback in that the woven or knitted product is difficult to finish to a specified width because the shrinkage is too large. When the boiling water shrinkage is 5 to 18%, the woven and knitted fabric is more bulged and more flexible and has a good texture.
【0018】また、本発明の太細糸の太部および細部の
ピッチは0.1〜5cmとすることが必要である。太部
および細部のピッチが0.1cm未満であるとピッチが
短すぎて織編物としたときに実質的に濃淡ムラを判別す
ることができず、本発明の目的である杢調素材を得るこ
とができない。一方太部及び細部のピッチが5cmを超
える場合には従来の太細糸で得られていたいわゆる絣調
の模様のものしか得られなくなってしまう。太部および
細部のピッチが0.1〜5cmの範囲の太細糸は濃淡の
コントラストが小さく、天然素材のような自然な杢調を
表現することが可能である。
Further, the pitch of the thick portion and the detail of the thick thin yarn of the present invention needs to be 0.1 to 5 cm. If the pitch of the thick portion and the details is less than 0.1 cm, the pitch is too short to substantially discriminate light and shade unevenness when forming a woven or knitted product, and to obtain a heavier tone material which is the object of the present invention. I can't. On the other hand, when the pitch of the thick portion and the detail exceeds 5 cm, only the so-called kasuri-tone pattern obtained with the conventional thick thin yarn can be obtained. The thick and thin yarns having a thick portion and a fine pitch in the range of 0.1 to 5 cm have a small contrast of light and shade, and can express a natural heathered tone like a natural material.
【0019】さらに本発明の太細糸は、糸長手方向の交
絡の数を3コ/m以上とする必要がある。糸長手方向に
太細がある糸において交絡部が存在することが本発明の
ポリエステル太細糸の最大の特徴である。交絡数が3コ
/m未満である場合は、太細糸に実質的に交絡部がない
のと同じで高次加工工程で糸切れや毛羽の原因となった
り、織編物として精練する際にパッカリング状のシボム
ラが生じ、仕上げ時に伸長してパッカリングを消去しよ
うとすると織編物のふくらみが減少したり、織編物中で
大きく収縮した糸がより伸長されてスジムラの原因とな
ってしまう。交絡数は多いほど良好であり、10コ/m
以上とすることが好ましく、20コ/m以上とすること
がより好ましい。なお、交絡数の測定方法は特開昭48
−28708号公報に示された方法にて測定する。
Further, in the thick and thin yarn of the present invention, the number of entanglements in the yarn longitudinal direction needs to be 3 ko / m or more. The greatest feature of the polyester thick and thin yarn of the present invention is the presence of the entangled portion in the yarn having a large and small thickness in the longitudinal direction of the yarn. When the number of entanglements is less than 3 pcs / m, it is the same as when the thick and thin yarns have substantially no entanglement portion, which may cause yarn breakage or fluff in the higher-order processing step or when scouring as a woven or knitted fabric. Puckering-like unevenness is generated, and when it is attempted to eliminate puckering by stretching during finishing, the bulging of the woven or knitted fabric is reduced, or the yarn that has been greatly shrunk in the woven or knitted fabric is further stretched, causing streaks. The greater the number of confounds, the better, 10 ko / m
It is preferable that it is not less than 20%, and it is more preferable that it is not less than 20 pcs / m. The method for measuring the number of confounding is disclosed in JP-A-48
It is measured by the method disclosed in JP-A-28708.
【0020】また、本発明の太細糸は交絡を3コ/m以
上有しているため、糸−鏡面摩擦係数を下げることがで
き、その結果として整経、製織などの高次通過性が改善
される。従って本発明の太細糸の糸−鏡面摩擦係数は
1.1μd以下であることが好ましい。糸−鏡面摩擦係
数を1.1μd以下とすることによって整経、製織時に
毛羽発生を抑制することができ布帛としての品位の優れ
た物が得られる。
Further, since the thick and thin yarn of the present invention has 3 or more entanglements, the yarn-mirror surface friction coefficient can be lowered, and as a result, high-order passability such as warp and weaving can be obtained. Be improved. Therefore, the thread-mirror surface friction coefficient of the thick and thin thread of the present invention is preferably 1.1 μd or less. By setting the yarn-mirror surface friction coefficient to 1.1 μd or less, generation of fluff during warping and weaving can be suppressed, and an excellent fabric quality can be obtained.
【0021】なお、本発明の脂肪族ポリエステル太細糸
は、断面形状は特に限定されず、3葉断面、6葉断面お
よび8葉断面のような多葉断面糸W字型、X字型、H字
型、C字型および田型、中空などの異形断面糸、サイド
バイサイド型複合繊維や偏心芯鞘複合繊維のような複合
繊維など、いずれの形状としてもよい。
The cross-sectional shape of the aliphatic polyester thick thin yarn of the present invention is not particularly limited, and the multi-lobe cross-section yarns such as 3-lobe cross section, 6-lobe cross section and 8-lobe cross section are W-shaped, X-shaped, It may have any shape such as a modified cross-section yarn having an H-shape, a C-shape, a square shape, a hollow shape, or a composite fiber such as a side-by-side composite fiber or an eccentric core-sheath composite fiber.
【0022】以上本願発明の脂肪族ポリエステル太細糸
を製造する方法について図面を用いて以下詳細に説明す
る。図1において、1は脂肪族ポリエステル高配向未延
伸糸で、フィードローラー2と加熱延伸ローラー4の間
に交絡ノズル3を介して(1+定応力伸長領域伸度
(%)/100(%)×0.5)倍〜(1+定応力伸長
領域伸度(%)/100(%)×1.2)倍の延伸倍率
で不均一延伸し、加熱処理ローラー5で熱セットする。
ついで、常温のローラー6に捲回し巻取機7にて巻取る
ものである。
The method for producing the aliphatic polyester thick yarn of the present invention will be described in detail below with reference to the drawings. In FIG. 1, reference numeral 1 is a highly oriented unstretched yarn of an aliphatic polyester, which is (1 + constant stress elongation region elongation (%) / 100 (%) ×) between a feed roller 2 and a heating stretching roller 4 through an entanglement nozzle 3. 0.5) times to (1 + constant stress elongation region elongation (%) / 100 (%) × 1.2) times non-uniformly stretched, and heat set by the heat treatment roller 5.
Then, it is wound around a roller 6 at room temperature and wound by a winder 7.
【0023】まず、脂肪族ポリエステル高配向未延伸糸
はその応力伸長曲線において、定応力伸長領域を示すこ
とが必要である。定応力伸長領域伸度が20%以上の高
配向未延伸糸を使用して得られる太細糸を織編物にした
場合には、染色すると濃淡のコントラストが適度になり
杢調の外観が得られる。より好ましくは30%以上であ
る。定応力伸長領域伸度が100%以下の未延伸糸を使
用して得られる太細糸を織編物にした場合には、太細の
断面積比が大きくなり、染色した濃淡のコントラストは
適度になる。より好ましくは80%以下である。
First, it is necessary that the highly oriented undrawn yarn of the aliphatic polyester has a constant stress extension region in its stress extension curve. When a thick or thin yarn obtained by using a highly oriented undrawn yarn having a constant stress elongation region elongation of 20% or more is used as a woven or knitted product, when dyed, the contrast of light and shade becomes appropriate and a tone-like appearance is obtained. . More preferably, it is 30% or more. When a thick and thin yarn obtained by using an undrawn yarn having a constant stress elongation region elongation of 100% or less is used as a woven or knitted fabric, the cross-sectional area ratio of the thick and thin becomes large, and the contrast of dyed shade is moderate. Become. It is more preferably 80% or less.
【0024】延伸倍率は得られる太細糸のU%を2%以
上とするために(1+定応力伸長領域伸度(%)/10
0(%)×1.2)倍以下とするもので、U%を4%以
上とするために(1+定応力伸長領域伸度(%)/10
0(%)×1.1)倍以下とすることが好ましい。ま
た、U%を10%以下とするために(1+定応力伸長領
域伸度(%)/100(%)×0.5)倍以上とする。
The stretching ratio is (1 + constant stress elongation region elongation (%) / 10 in order to make U% of the obtained thick and thin yarn 2% or more.
In order to make U% 4% or more, (1 + constant stress elongation region elongation (%) / 10)
It is preferably 0 (%) × 1.1) times or less. Further, in order to set U% to 10% or less, it is set to (1 + constant stress elongation region elongation (%) / 100 (%) × 0.5) times or more.
【0025】なお、紡糸工程に連続して不均一延伸する
ことも可能であるが、紡糸直後の高配向未延伸糸は定応
力伸長域が明瞭でなく、不均一延伸してもマルチフィラ
メント糸全体に実質的に太細を形成しにくいので、一旦
巻き取った後、高配向未延伸糸を不均一延伸することが
好ましい。
Although it is possible to carry out non-uniform drawing continuously in the spinning process, the highly oriented undrawn yarn immediately after spinning does not have a clear constant stress extension region, and even if it is drawn non-uniformly the whole multifilament yarn is drawn. Since it is difficult to form a thick or thin shape, it is preferable that the highly oriented undrawn yarn is non-uniformly drawn after being once wound.
【0026】また本発明ではマルチフィラメント糸全体
に分散したショートピッチの太細が存在することが必須
であり、このために延伸前に張力振動を与える必要があ
る。張力振動を与える方法であれば特に限定されない
が、特に延伸装置における延伸領域の前に交絡ノズルを
使用することが好ましい。なお、交絡ノズルを使用する
場合、交絡圧空圧は0.05MPa以上とすることが好
ましい。
Further, in the present invention, it is essential that the short-pitch thick and thin particles are dispersed throughout the multifilament yarn. Therefore, it is necessary to apply tension vibration before drawing. The method is not particularly limited as long as it is a method of imparting tension vibration, but it is particularly preferable to use an entanglement nozzle before the stretching region in the stretching device. When the confounding nozzle is used, the confounding air pressure is preferably 0.05 MPa or more.
【0027】また、交絡を付与することによって結果と
して糸長手方向に交絡部が3コ/m以上形成され、高次
加工工程での糸切れや毛羽、熱処理時のパッカリング状
のシボムラを形成することなく、品位の良好な織編物を
得ることができるのである。
Further, by providing the entanglement, as a result, the entangled portion is formed in the longitudinal direction of the yarn of 3 pcs / m or more, and yarn breakage or fluff in the higher-order processing step, and puckering ring-like unevenness during heat treatment are formed. Without this, it is possible to obtain a woven or knitted fabric of good quality.
【0028】また、太細糸を低収縮化するために不均一
延伸後熱処理を行うことが必要であり、加熱処理ローラ
ーを用いる。なお、加熱処理ローラーの温度は得られる
太細糸の沸水収縮率を4〜25%とするためにTg+2
0℃〜Tg+70℃の範囲とすることが好ましい。なお
沸水収縮率を5〜18%とするにはTg+25℃〜Tg
+60℃とすることが好ましい。
Further, in order to reduce the shrinkage of the thick and thin yarn, it is necessary to carry out a heat treatment after the nonuniform drawing, and a heat treatment roller is used. The temperature of the heat treatment roller is Tg + 2 in order to make the boiling water shrinkage ratio of the obtained thick and thin yarn 4 to 25%.
It is preferably in the range of 0 ° C to Tg + 70 ° C. In addition, in order to make the boiling water shrinkage rate 5 to 18%, Tg + 25 ° C. to Tg
The temperature is preferably + 60 ° C.
【0029】巻取りに関しては、加熱処理ローラーより
直接巻取機にて巻き取ることも可能であるが、巻取り張
力変動が巻取った太細糸に影響し織編物としたときにヒ
ケムラやスジムラを発生しやすいので加熱処理ローラー
で熱処理後、常温のローラーに給糸、捲回してから巻き
とることが可能である。この場合に加熱処理ローラーと
常温のローラーの間の張力は走行安定性の点で、0.0
3cN/dtex以上とするとよい。
Regarding winding, it is possible to wind directly from the heat treatment roller by a winder, but fluctuations in the winding tension affect the wound thick and thin yarns, and when a woven or knitted fabric is formed, the unevenness and uneven streaks occur. Since it is apt to occur, it is possible to heat-treat with a heat treatment roller, feed the yarn to a roller at room temperature, wind it, and then wind it. In this case, the tension between the heat treatment roller and the roller at room temperature is 0.0 in terms of running stability.
It is good to set it to 3 cN / dtex or more.
【0030】本発明のポリエステル太細糸は上述したよ
うに太細のピッチが短く分散しており、太細のコントラ
ストが小さいため、自然な杢調を表現することが可能で
あり、また交絡部を有するため、高次通過性に優れ、織
編物製造工程において、精練の際のパッカリング状のシ
ボムラの発生はなく、また染色、仕上げにより、品位、
ふくらみ、杢調外観の良好な織編物とすることができ
る。
As described above, the polyester thick and thin yarns of the present invention have short and fine pitches dispersed and have a small contrast between thick and thin, so that it is possible to express a natural heather tone, and the entangled portion. Therefore, it has excellent high-order passability, and in the woven or knitted product manufacturing process, there is no occurrence of puckering ring-like unevenness during scouring, and by dyeing and finishing, quality,
A woven or knitted product having a good bulge and heather appearance can be obtained.
【0031】従って仮撚などの捲縮加工などの特別の糸
加工をしなくても織編物とする場合に特に好ましく用い
ることができる。また、これまでの芳香族ポリエステル
では実現できなかった鮮明な発色性も有した杢調素材と
することができる。
Therefore, it can be particularly preferably used in the case of producing a woven or knitted product without special thread processing such as crimping processing such as false twisting. Further, it is possible to obtain a tone-tone material having a vivid coloring property, which has not been realized by the conventional aromatic polyesters.
【0032】また製造方法においては特殊な装置を使用
することなく、簡単な糸道でコンパクトな装置で加工が
可能である。
Further, in the manufacturing method, it is possible to process with a simple device and a compact device without using a special device.
【0033】本発明の脂肪族ポリエステル太細糸を用い
た編織物を製造する場合には、織機、編機、織編組織等
については何ら制約することはなく、脂肪族ポリエステ
ル太細糸を少なくとも組織の一部に用いることによっ
て、本発明の目的とするドライ感と杢調の染色特性およ
び鮮明発色性に優れた繊維構造物を得ることができ、こ
の種の繊維構造物は、衣料用繊維製品に好適に用いるこ
とができる。ここで、少なくとも一部とは、例えば織物
の場合、経糸および/または緯糸の少なくとも一部に用
いることを意味し、好適には編織物の30重量%以上に
用いられる。
When producing a knitted fabric using the aliphatic polyester thick yarn of the present invention, there are no restrictions on the loom, the knitting machine, the woven or knit structure, etc., and at least the aliphatic polyester thick yarn is used. By using it as a part of the structure, it is possible to obtain a fiber structure excellent in a dry feeling and a heat-dyeing dyeing property and a clear coloring property, which is the object of the present invention. It can be suitably used for products. Here, in the case of a woven fabric, for example, at least a part means that it is used for at least a part of the warp and / or the weft, and is preferably used for 30% by weight or more of the knitted fabric.
【0034】[0034]
【実施例】以下、実施例によって本発明をより詳細に説
明する。なお、実施例中の各特性値は次の方法で求め
た。
The present invention will be described in more detail with reference to examples. Each characteristic value in the examples was determined by the following method.
【0035】A.融点 パーキンエルマー社製の示差走査熱量計(DSC−7)
を用いて、昇温速度15℃/分の条件で測定し、得られた
溶融ピークのピーク温度を融点とした。
A. Melting point Perkin Elmer differential scanning calorimeter (DSC-7)
Was measured under the condition that the temperature rising rate was 15 ° C./min, and the peak temperature of the obtained melting peak was taken as the melting point.
【0036】B.極限粘度(η) オルソクロロフェノール10mlに対して試料0.10
0gを溶解し、温度25℃においてオストワルド粘度計
を用いて測定した。
B. Intrinsic viscosity (η) 0.10 sample for 10 ml orthochlorophenol
0 g was melt | dissolved and it measured at the temperature of 25 degreeC using the Ostwald viscometer.
【0037】C.沸水収縮率 マルチフィラメント糸をかせ取りし、0.09cN/d
texの荷重下で試料長L0を測定した後、無荷重の状
態で15分間、沸騰水中で処理を行う。処理後、風乾
し、0.09cN/dtexの荷重下で試料長L1を測
定する。
C. Shrinkage rate of boiling water Multifilament yarn is skeined off, 0.09cN / d
After measuring the sample length L0 under the load of tex, the treatment is carried out in boiling water for 15 minutes with no load. After the treatment, it is air dried and the sample length L1 is measured under a load of 0.09 cN / dtex.
【0038】沸騰水収縮率(SW)(%)=[(L0−
L1)/L0]×100 D.U% 測定器としては市販のUster Eveness T
ester(計測器工業株式会社製)を使用する。糸の
トータル繊度により使用する測定用スロットを選択し、
糸速を25m/minとし、撚糸機で1500rpmの
回転を与え、撚糸しつつノルマルテストにて測定する。
U%値は3分間の測定を1回として測定試料の任意の5
カ所について測定し、その平均値で表す。
Boiling water shrinkage (SW) (%) = [(L0-
L1) / L0] × 100 D.I. As a U% measuring instrument, a commercially available User Evens T
ester (manufactured by Keisokuki Kogyo Co., Ltd.) is used. Select the measurement slot to use according to the total fineness of the yarn,
The yarn speed is set to 25 m / min, rotation is performed at 1500 rpm with a twisting machine, and the yarn is twisted and measured by a normal test.
The U% value is set to any 5 of the measurement samples with one measurement for 3 minutes.
It is measured at one place and expressed as the average value.
【0039】E.定応力伸長領域伸度 インストロン型引張り試験機で得た図2に示すチャート
上のAの伸度を読みとる。定応力伸長領域伸度について
は5カ所について測定し、その平均値で表す。
E. Constant Stress Elongation Region Elongation The elongation of A on the chart shown in FIG. 2 obtained with an Instron type tensile tester is read. The constant stress elongation region elongation is measured at 5 points and expressed as an average value.
【0040】F.Tg ガラス転移点は比熱測定法により求めた。F. Tg The glass transition point was determined by a specific heat measurement method.
【0041】G.糸−鏡面摩擦係数 英光産業(株)製 糸走行摩擦係数測定装置を用い、下
記の条件にて試料を走行させ、鏡面ガイドを通過すると
きの試料の張力を測定し、計算式より算出した。
G. Yarn-mirror surface friction coefficient A sample running friction coefficient measuring device manufactured by Eiko Sangyo Co., Ltd. was used to run the sample under the following conditions, and the tension of the sample when passing through the mirror surface guide was measured and calculated from a calculation formula.
【0042】 測定条件 試料走行速度 :2.5m/分 測定時間 :1分間 金属ガイド :鏡面 摩擦角度 :90° 計算式 :μd=(1/π)×loge(T2/T1) (但し、π=糸の接触角、T1=供給側張力、T2=引取側張力) H.延伸性 2kg巻きパーンを50本作製する際の延伸糸切れ回数
から、延伸性を3段階評価した。
Measurement conditions Sample traveling speed: 2.5 m / min Measurement time: 1 minute Metal guide: Mirror surface Friction angle: 90 ° Calculation formula: μd = (1 / π) × loge (T2 / T1) (where π = Contact angle of thread, T1 = tension on supply side, T2 = tension on take-up side) Drawability The drawability was evaluated in three stages based on the number of times of breakage of the drawn yarn when producing 50 2 kg-wound pans.
【0043】 ○:糸切れ無し △:糸切れ若干有り(1〜3回) ×:糸切れ多発。[0043] ○: No thread break △: Some yarn breakage (1 to 3 times) X: Frequent yarn breakage.
【0044】I.官能評価 得られた太細糸を下記条件で製織、染色し、染色布帛の
濃淡の分散度合い、発色性、布帛の風合い、分解糸の濃
淡ピッチについてそれぞれ目視および官能試験を実施
し、「きわめて優れている」は○○、「優れている」は
○、「普通」は△、「劣っている」は×の4段階で評価
した。なお、緯糸に84T-36FのPET延伸糸を使用したもの
を基準試料とし、これを「劣っている ×」とした。
I. Sensory evaluation Weaving and dyeing the obtained thick and thin yarn under the following conditions, and visual and sensory tests were conducted for the degree of density distribution of the dyed fabric, the color development, the texture of the fabric, and the pitch of the decomposed yarn. It was evaluated on a scale of 4 from "Good" to "Good", "Excellent" to "Good", "Normal" to "Good", and "Inferior" to "Poor". In addition, a reference sample was prepared by using a PET drawn yarn of 84T-36F as a weft yarn, and this was designated as "inferior x".
【0045】 製織条件 経糸:33T−6Fのポリエステル糸(800t/m) 緯糸:実施例で得た太細糸 オサ密度23.77羽/cm 染色条件 染料 Sumikaron Navy blue S-2GL :0.6% o.w.f 染色助剤 terosin Pen :5.0% o.w.f Sun salt #1200 :1.0% o.w.f 染色温度 98℃×60分 浴比 1:50 実施例1 融点が168℃、重量平均分子量が19万であるポリL
−乳酸(L体比率95重量%、D体比率5重量%)のチ
ップを、60℃に設定した真空乾燥機で48時間乾燥し
た。乾燥したチップをプレッシャーメルター型紡糸機に
て、メルター温度230℃にて溶融し、紡糸温度235
℃で紡糸し、20℃、30m/分のチムニー風によって
冷却し、油剤を付与して集束した後、2000m/分で
引き取って122Dtex-36Fの未延伸糸を得た。
Weaving conditions Warp: 33T-6F polyester yarn (800t / m) Weft: Thick yarn obtained in the example Osa density 23.77 feathers / cm Dyeing conditions Dye Sumikaron Navy blue S-2GL: 0.6% owf dyeing Auxiliary agent terosin Pen: 5.0% owf Sun salt # 1200: 1.0% owf Dyeing temperature 98 ° C. × 60 minutes Bath ratio 1:50 Example 1 Poly L having a melting point of 168 ° C. and a weight average molecular weight of 190,000
-Lactic acid (L-form ratio 95% by weight, D-form ratio 5% by weight) chips were dried for 48 hours in a vacuum dryer set at 60 ° C. The dried chips are melted by a pressure melter type spinning machine at a melter temperature of 230 ° C. and a spinning temperature of 235.
After spinning at 0 ° C., cooling at 20 ° C. with a chimney wind of 30 m / min, applying an oiling agent and bundling, the product was collected at 2000 m / min to obtain an undrawn yarn of 122 Dtex-36F.
【0046】この未延伸糸をフィードローラー、交絡ノ
ズル、延伸ローラー、加熱処理ローラー、コールドロー
ラーの系よりなるホットローラー方式の延伸機を用い
て、交絡処理圧0.3MPa、延伸温度75℃、熱処理
温度115℃、延伸倍率1.4倍、延伸速度400m/
分の条件で延伸した。
The unstretched yarn was heat treated using a hot roller type stretching machine consisting of a feed roller, an entanglement nozzle, a stretching roller, a heat treatment roller and a cold roller system, with an entanglement treatment pressure of 0.3 MPa, a stretching temperature of 75 ° C. and a heat treatment. Temperature 115 ° C, draw ratio 1.4 times, draw speed 400m /
It was stretched under the condition of minutes.
【0047】得られた延伸糸はランダムに太細を有して
おり、ウースタノーマルU%は6.8%であった。ま
た、CF値は33コ/m、沸水収縮率は10.8%、糸
−鏡面摩擦係数は0.84μdであった。
The drawn yarn obtained had random thickness and fineness, and Wuster normal U% was 6.8%. Further, the CF value was 33 k / m, the boiling water shrinkage ratio was 10.8%, and the thread-mirror surface friction coefficient was 0.84 μd.
【0048】得られた延伸糸を経緯糸に用いてタフタ織
物を作成し、染色加工を行ったところ、太細のピッチが
分散した良好な杢調の濃淡が発現し、発色は鮮明であっ
た。また、布帛の風合いも従来のポリエチレンテレフタ
レート繊維の染色物と比較してソフト感、ドライ感に優
れたものであった。また、織物の製経時の毛羽発生、糸
切れ等もなく、製織性についても大変優れたものとなっ
た。
A taffeta woven fabric was prepared by using the obtained drawn yarn as a warp and weft, and a dyeing process was carried out. As a result, a good heat and shade in which fine and fine pitches were dispersed was exhibited, and the color development was clear. . Further, the texture of the fabric was excellent in softness and dryness as compared with the conventional dyed product of polyethylene terephthalate fiber. In addition, there was no fluff generation, yarn breakage, etc. during the manufacture of the woven fabric, and the weavability was also very excellent.
【0049】実施例2および3 実施例1で使用したポリマを用いて延伸倍率を(1+定
応力伸長領域伸度(%)/100(%)×r)倍とした
時のrの値を実施例2は0.9倍、実施例3は0.5倍
とした以外は実施例1と同様にして太細糸を得た。得ら
れた太細糸は表1の通りであり、実施例2はU%がやや
低めとなったため太細の分散した杢調素材となったが、
優れた鮮明発色性を有していた。一方実施例3はU%は
やや高めであり濃染部の比率が高い杢調素材であった。
Examples 2 and 3 Using the polymer used in Example 1, the value of r was determined when the draw ratio was (1 + constant stress elongation region elongation (%) / 100 (%) × r) times. Thick yarns were obtained in the same manner as in Example 1 except that Example 2 was set to 0.9 times and Example 3 was set to 0.5 times. The obtained thick and thin yarns are as shown in Table 1. In Example 2, the U% was slightly lower, so that the fine and fine dispersed heavier tone material was obtained.
It had excellent vivid color development. On the other hand, in Example 3, the U% was slightly high, and the heat-sensitive material had a high ratio of the deep-dyeing portion.
【0050】実施例4および5 実施例1で使用した高配向未延伸糸を用いて、実施例4
は加熱処理温度を140℃、実施例5は80℃とした以
外は実施例1と同様にして太細糸を得た。実施例4では
沸収が低めのため、ふくらみ感が若干低下したが、鮮明
発色性、杢調パターンの優れたものであった。一方実施
例5は沸収が24.2%とやや高いためソフト感が若干
低下したが、鮮明発色性、杢調パターンの優れたもので
あった。
Examples 4 and 5 Using the highly oriented undrawn yarn used in Example 1, Example 4
Was obtained in the same manner as in Example 1 except that the heat treatment temperature was 140 ° C and Example 5 was 80 ° C. In Example 4, the boiling point was low, so that the swelling feeling was slightly lowered, but the color development was clear and the tone pattern was excellent. On the other hand, in Example 5, the boiling point was 24.2%, which was rather high, and thus the soft feeling was slightly deteriorated, but the color development was clear and the tone pattern was excellent.
【0051】[0051]
【表1】 実施例6および7 実施例1と同じPOYを使用して交絡処理圧を0.5M
Pa、0.05MPaとして太細糸(それぞれ実施例6
および7)を得た。その結果、実施例6では太細ピッチ
が短くなり、かろうじて濃淡ムラを判別することができ
た。一方実施例7ではピッチ長が長めとなり、従来の太
細糸よりは分散していたが、分散の度合いが小さいもの
となった。
[Table 1] Examples 6 and 7 Using the same POY as in Example 1, the confounding treatment pressure was 0.5M.
Pa and 0.05 MPa as thick yarn (Example 6 respectively)
And 7) were obtained. As a result, in Example 6, the thick and thin pitches were shortened, and it was possible to barely discriminate light and shade unevenness. On the other hand, in Example 7, the pitch length was longer and dispersed more than the conventional thick and thin yarn, but the degree of dispersion was small.
【0052】[0052]
【表2】 比較例1 実施例1と同じポリマを用いて紡糸速度4000m/分
で紡糸したPOYを用いて同様に延伸を行ったが、PO
Yの定応力伸長領域伸度が14%と低いため、U%は
1.1%と低くなった。また太細ピッチも観察されず、
杢調外観を得ることができなかった。。
[Table 2] Comparative Example 1 The same polymer as in Example 1 was used to perform the same drawing using POY spun at a spinning speed of 4000 m / min.
Since the constant stress elongation region elongation of Y was as low as 14%, U% was as low as 1.1%. Also, no thick or thin pitch is observed,
It was not possible to obtain a heathered appearance. .
【0053】比較例2 実施例3において、延伸倍率をさらに下げて(1+定応
力伸長領域伸度(%)/100(%)×0.4)倍とし
て延伸を行ったところ、U%は12.3%と高くなっ
た。この太細糸を製織し染色加工したが、未延伸部が多
いため、強度が不足し、高次加工工程で糸切れや毛羽が
多発し、また布帛としての引き裂き強力が低下してしま
い、実用に耐えられない物であった。
Comparative Example 2 In Example 3, when the stretching ratio was further reduced to (1 + constant stress elongation region elongation (%) / 100 (%) × 0.4) times to perform stretching, U% was 12 It was as high as 3%. This thick yarn was woven and dyed, but it lacked strength due to the large number of unstretched parts, and many yarn breakages and fluffs occurred in the higher-order processing process, and the tearing strength of the fabric decreased, and it was practically used. It was something that could not stand.
【0054】比較例3および4 実施例1において加熱処理温度を160℃に設定して延
伸して沸水収縮率が2.2%の太細糸を得た(比較例
3)。この太細糸を製織、染色処理して評価したが、ふ
くらみやソフト感が全くないものとなってしまった。一
方比較例4では加熱処理温度を50℃まで下げて延伸し
たところ、沸水収縮率は30.8%となった。そのた
め、比較例4の太細糸は織物として精練、染色した際に
大きく収縮し、風合いが硬くなってしまった上に、収縮
が大きすぎて仕上げの幅に設定しにくくなってしまっ
た。
Comparative Examples 3 and 4 In Example 1, the heat treatment temperature was set to 160 ° C. and stretching was performed to obtain a thick and thin yarn having a boiling water shrinkage of 2.2% (Comparative Example 3). When this thick thin yarn was woven and dyed and evaluated, it was found to have no bulge or soft feeling. On the other hand, in Comparative Example 4, when the heat treatment temperature was lowered to 50 ° C. and stretching was performed, the boiling water shrinkage ratio was 30.8%. Therefore, the thick and thin yarn of Comparative Example 4 greatly contracted when it was scoured and dyed as a woven fabric, and the texture became hard, and also the contraction was so large that it was difficult to set the finishing width.
【0055】比較例5 実施例1のPOYを用いて延伸工程での交絡処理を行わ
ずに太細糸を得た。比較例7の太細糸は糸−鏡面摩擦係
数は1.3μdとなり、高次加工工程で、整経、製織毛
羽が多発し、品位の悪い織物となってしまった。
Comparative Example 5 Using the POY of Example 1, a thick and thin yarn was obtained without performing the entanglement treatment in the drawing step. The thick thin yarn of Comparative Example 7 had a yarn-mirror surface friction coefficient of 1.3 μd, and in the high-order processing step, warping and weaving fluff frequently occurred, resulting in a poor quality fabric.
【0056】[0056]
【表3】 比較例6 ポリ乳酸に変えて融点が60℃のポリカプロラクトン
(PCL)を用い、メルター温度180℃、紡糸温度2
00℃として速度800m/minで引き取って未延伸
糸を得た。この未延伸糸を実施例1と同様に延伸した
が、ホットローラー上で糸条の溶融糸切れが生じ太細糸
を得ることができなかった。
[Table 3] Comparative Example 6 Polycaprolactone (PCL) having a melting point of 60 ° C. was used instead of polylactic acid, the melter temperature was 180 ° C., and the spinning temperature was 2
An undrawn yarn was obtained by setting the temperature to 00 ° C. and taking it off at a speed of 800 m / min. This unstretched yarn was stretched in the same manner as in Example 1, but the melted yarn of the yarn was broken on the hot roller, and a thick or thin yarn could not be obtained.
【0057】[0057]
【発明の効果】本発明によれば、従来には得られなかっ
た、ドライ感とソフト感を有し、太細のピッチが短く分
散しており、鮮明発色性のある自然な杢調を表現するこ
とができる脂肪族ポリエステル太細糸を得ることができ
る。また本発明の脂肪族ポリエステル太細糸は編織物等
の繊維製品製造の際に毛羽の発生も同時に防ぐことがで
きる。
EFFECTS OF THE INVENTION According to the present invention, it has a dry feeling and a soft feeling which have not been obtained in the past, and the pitches of thick and thin particles are shortly dispersed to express a natural tone with vivid coloring. It is possible to obtain an aliphatic polyester thick yarn that can be obtained. Further, the aliphatic polyester thick yarn of the present invention can simultaneously prevent generation of fluff during the production of textile products such as knitted fabrics.
【図面の簡単な説明】[Brief description of drawings]
【図1】本発明のポリエステル太細糸を製造するための
装置の一例の概略図。
FIG. 1 is a schematic view of an example of an apparatus for producing a polyester thick yarn of the present invention.
【図2】低応力伸長領域伸度を説明するための強伸度曲
線の概略図。
FIG. 2 is a schematic view of a strong elongation curve for explaining elongation in a low stress elongation region.
【符号の説明】[Explanation of symbols]
1:未延伸糸 2:フィードローラー 3:交絡ノズル 4:加熱延伸ローラー 5:加熱処理ローラー 6:ローラー 7:巻取機 A:低応力伸長領域伸度 B:破断伸度 1: Undrawn yarn 2: Feed roller 3: Entanglement nozzle 4: Heating stretching roller 5: Heat treatment roller 6: Roller 7: Winder A: Low stress elongation area elongation B: elongation at break

Claims (3)

    【特許請求の範囲】[Claims]
  1. 【請求項1】融点が100℃以上の脂肪族ポリエステル
    からなる繊維であって、糸長手方向にU%が2〜10%
    の太細を有し、沸水収縮率が4〜25%、太細ピッチが
    0.1〜5cm、糸長手方向に交絡が3コ/m以上であ
    ることを特徴とする脂肪族ポリエステル太細糸。
    1. A fiber made of an aliphatic polyester having a melting point of 100 ° C. or higher, having a U% of 2 to 10% in the longitudinal direction of the yarn.
    The aliphatic polyester thick and thin yarn is characterized in that the shrinkage rate of boiling water is 4 to 25%, the thick and thin pitch is 0.1 to 5 cm, and the entanglement in the yarn longitudinal direction is 3 ko / m or more. .
  2. 【請求項2】糸−鏡面摩擦係数が1.1μd以下である
    ことを特徴とする請求項1記載の脂肪族ポリエステル太
    細糸。
    2. The aliphatic polyester thick and thin yarn according to claim 1, wherein the yarn-specular friction coefficient is 1.1 μd or less.
  3. 【請求項3】脂肪族ポリエステル高配向未延伸糸に張力
    振動を与えながら、(1+定応力伸長領域伸度(%)/
    100(%)×0.5)〜(1+定応力伸長領域伸度
    (%)/100(%)×1.2)倍の延伸倍率で不均一
    延伸し、加熱処理ローラ上で加熱処理し、巻取ることを
    特徴とする脂肪族ポリエステル太細糸の製造方法。
    3. An aliphatic polyester highly oriented undrawn yarn is subjected to tension vibration while (1 + constant stress elongation region elongation (%) /
    100 (%) × 0.5) to (1 + constant stress elongation region elongation (%) / 100 (%) × 1.2) times of non-uniform stretching and heat treatment on a heat treatment roller, A method for producing an aliphatic polyester thick and thin yarn, which comprises winding.
JP2001209480A 2001-07-10 2001-07-10 Aliphatic polyester thick and thin yarn and method for producing the same Pending JP2003020520A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2001209480A JP2003020520A (en) 2001-07-10 2001-07-10 Aliphatic polyester thick and thin yarn and method for producing the same

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2001209480A JP2003020520A (en) 2001-07-10 2001-07-10 Aliphatic polyester thick and thin yarn and method for producing the same

Publications (1)

Publication Number Publication Date
JP2003020520A true JP2003020520A (en) 2003-01-24

Family

ID=19045127

Family Applications (1)

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

Country Link
JP (1) JP2003020520A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005248340A (en) * 2004-03-02 2005-09-15 Toray Ind Inc Lightweight blend fiber with high shading tendency, and textile product made therefrom
JP2010024576A (en) * 2008-07-18 2010-02-04 Teijin Fibers Ltd Polylactic acid fabric and clothing

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61194205A (en) * 1985-02-19 1986-08-28 Teijin Ltd Production of slub yarn
JP2000226727A (en) * 1999-02-08 2000-08-15 Toray Ind Inc Aliphatic polyester fiber having denier unevenness
JP2000290845A (en) * 1999-04-02 2000-10-17 Toray Ind Inc Aliphatic polyester false twisted yarn having excellent luster

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61194205A (en) * 1985-02-19 1986-08-28 Teijin Ltd Production of slub yarn
JP2000226727A (en) * 1999-02-08 2000-08-15 Toray Ind Inc Aliphatic polyester fiber having denier unevenness
JP2000290845A (en) * 1999-04-02 2000-10-17 Toray Ind Inc Aliphatic polyester false twisted yarn having excellent luster

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005248340A (en) * 2004-03-02 2005-09-15 Toray Ind Inc Lightweight blend fiber with high shading tendency, and textile product made therefrom
JP4581428B2 (en) * 2004-03-02 2010-11-17 東レ株式会社 Light-weight blended fiber with excellent light-shielding properties, and fiber products made of the same
JP2010024576A (en) * 2008-07-18 2010-02-04 Teijin Fibers Ltd Polylactic acid fabric and clothing

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