JP2001214335A - Low-shrinkage polyester slub yarn and combined polyester filament yarn composed thereof - Google Patents
Low-shrinkage polyester slub yarn and combined polyester filament yarn composed thereofInfo
- Publication number
- JP2001214335A JP2001214335A JP2000024296A JP2000024296A JP2001214335A JP 2001214335 A JP2001214335 A JP 2001214335A JP 2000024296 A JP2000024296 A JP 2000024296A JP 2000024296 A JP2000024296 A JP 2000024296A JP 2001214335 A JP2001214335 A JP 2001214335A
- Authority
- JP
- Japan
- Prior art keywords
- yarn
- shrinkage
- polymer
- low
- polyester
- 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
Links
Landscapes
- Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
- Multicomponent Fibers (AREA)
- Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
Abstract
Description
【0001】[0001]
【発明の属する技術分野】本発明はふくらみ感、ソフト
感、反発感、ドライ感といった風合いに優れ、しかも布
帛表面審美性に優れ、さらに軽量性、保温性といった着
用快適性にも優れた布帛を提供できる低収縮ポリエステ
ル糸に関するものである。The present invention relates to a fabric which is excellent in texture such as swelling, softness, resilience, and dryness, is excellent in aesthetics of a fabric surface, and is excellent in wearing comfort such as lightness and heat retention. The present invention relates to a low-shrinkage polyester yarn that can be provided.
【0002】[0002]
【従来の技術】ポリエステルは機械的特性をはじめ様々
な優れた特性を有しているため衣料用途をはじめ各種分
野に利用されている。衣料用途では天然繊維をターゲッ
トとして品質の改良が行われてきているが、特にふくら
み、ソフト感のある風合いの実現のための手段として、
熱による収縮特性の異なる繊維を混繊するいわゆる収縮
差混繊糸が広く用いられている。特に低収縮糸として、
特開平9−273043号公報や特開平7−20754
0号公報等に記載されているように、沸騰水収縮率(B
WS)が10%以下であり、さらに沸騰水収縮させた糸
をさらに160℃以上で乾熱処理した時に非可逆的な伸
長を示す、すなわち沸騰水収縮後乾熱収縮率(DSA
B)が負となるものを用いれば織物組織の密度が増して
も十分な糸長差を染色加工後に得ることができ、ふくら
み感、ソフト感に優れた布帛を得ることができる。2. Description of the Related Art Polyester has various excellent properties including mechanical properties, and is therefore used in various fields including clothing. In clothing applications, quality has been improved targeting natural fibers, but especially as a means to realize a swelling and soft texture.
A so-called shrinkage difference mixed yarn which mixes fibers having different shrinkage characteristics due to heat is widely used. Especially as low shrinkage yarn,
Japanese Patent Application Laid-Open Nos. 9-27043 and 7-20754
No. 0, etc., the boiling water shrinkage (B
WS) is 10% or less, and the yarn that has been further shrunk in boiling water exhibits irreversible elongation when subjected to dry heat treatment at 160 ° C. or higher.
If a material having a negative B) is used, a sufficient difference in yarn length can be obtained after the dyeing process even if the density of the woven fabric increases, and a fabric having excellent swelling and softness can be obtained.
【0003】しかしながら、特開平9−273043号
公報に記載の糸により、たしかにある程度ふくらみ、ソ
フト感に優れた布帛を得ることができるのであるが、い
わゆる高配向未延伸糸(POY)の低張力熱処理糸であ
るため糸の伸度が大きくなり(120%以上と推定され
る)、混繊する高収縮糸との伸度差が大き過ぎ、混繊糸
条の表面に低収縮糸がループやたるみを発生させ、織り
編み工程で糸切れが多発する等高次工程での取り扱い性
が悪いという問題があった。このため、熱処理時の張力
を高くし低伸度化すると糸が過度に高配向化し、充分な
収縮特性が得られないばかりか糸の剛性が過度に高くな
り、ふくらみ感、ソフト感とも満足のいくものが得られ
なかった。また、高度の交絡を施すことにより、糸条の
集束性を向上させループやたるみを抑制することも不可
能ではないが、混繊糸条が過度に緊密に集合させられ自
由度を失うため、布帛にした際ふくらみ感やソフト感を
損ねるという問題があった。さらに、繊維表面に筋状溝
が形成されているためフィブリル化し易く、布帛にした
際、軽度の摩擦で白化したり、ピリング特性が悪いとい
う問題もあった。[0003] However, the yarn described in Japanese Patent Application Laid-Open No. 9-230443 can surely swell to some extent and obtain a fabric excellent in soft feeling. Since the yarn is a yarn, the elongation of the yarn is large (estimated to be 120% or more), the difference in elongation from the high shrink yarn to be mixed is too large, and the low shrink yarn is looped or sagged on the surface of the mixed yarn. And there is a problem in that the yarn is frequently broken in the weaving and knitting process, and the handleability in high-order processes is poor. For this reason, if the tension at the time of heat treatment is increased and the elongation is reduced, the yarn is excessively oriented, and not only is it not possible to obtain sufficient shrinkage properties, but also the rigidity of the yarn is excessively increased, and both the swelling feeling and the soft feeling are satisfactory. I couldn't get anything. In addition, by applying a high degree of entanglement, it is not impossible to improve the convergence of the yarn and suppress loops and sagging, but since the mixed fiber yarn is excessively tightly assembled and loses flexibility, There has been a problem in that the swelling feeling and the soft feeling are impaired when made into a fabric. In addition, since fibrous grooves are formed on the fiber surface, the fibers are liable to fibrillate, and when made into a fabric, there is a problem that whitening occurs due to slight friction and pilling characteristics are poor.
【0004】また、特開平7−207540号公報記載
の糸も実質的にPOYの熱処理糸であり、上記した特開
平9−273043号公報に記載の糸と同様の欠点を有
するものであった。The yarn described in JP-A-7-207540 is also a heat-treated POY yarn, and has the same disadvantages as the yarn described in JP-A-9-273443.
【0005】一方、従来から布帛表面に自然な斑のある
表面変化を発現させる方法として、糸長手方向に太部と
細部を交互に有する太細糸が使用されていた。これは、
逐次改良を重ねられ、例えば特開平11−200166
号公報等には、特開平9−273043号公報記載のよ
うなDSAB<0%の低収縮糸が得られ、優れた風合い
を有する布帛を形成できることが記載されている。しか
しながら、太細の周期が数十cmから数mであり、天然
繊維のような極めて繊細なタッチを得るためには、さら
に太細の周期を短くする等改良の余地があった。On the other hand, conventionally, as a method of expressing a surface change with a natural spot on a fabric surface, a thick and thin yarn having a thick portion and a detail alternately in the yarn longitudinal direction has been used. this is,
Improvements have been made successively.
Japanese Patent Application Laid-Open No. 9-27043 describes that a low shrinkage yarn having a DSAB <0% as described in JP-A-9-273443 can be obtained and a fabric having an excellent texture can be formed. However, the thick and thin cycle is several tens cm to several meters, and there is room for improvement such as further shortening the thick and thin cycle in order to obtain an extremely delicate touch like a natural fiber.
【0006】ところで、近年はポリエステル布帛に対す
る要求はさらに高度化してきており、上記した風合いの
他に軽量性、保温性といった着用快適性も基本性能とし
て要求されるようになってきている。しかしながら、前
記した従来の技術ではこれらの着用快適性は到底満足で
きるレベルではなかった。[0006] In recent years, demands for polyester fabrics have been further advanced, and in addition to the above-mentioned feeling, wearing comfort such as lightness and heat retention is also required as basic performance. However, in the above-mentioned conventional technology, these wearing comforts were not at a satisfactory level.
【0007】[0007]
【発明が解決しようとする課題】本発明は、上記欠点を
解決し、ふくらみ感、ソフト感、反発感に優れ、しかも
布帛表面審美性に優れ、さらに軽量性、保温性といった
着用快適性にも優れた布帛を形成するための低収縮ポリ
エステル糸を提供するものである。DISCLOSURE OF THE INVENTION The present invention solves the above-mentioned drawbacks and is excellent in swelling, softness and resilience, and also excellent in aesthetics of the fabric surface, and is also excellent in wearing comfort such as lightness and heat retention. An object of the present invention is to provide a low-shrinkage polyester yarn for forming an excellent fabric.
【0008】[0008]
【課題を解決するための手段】上記目的は、実質的にポ
リエステルであるポリマー(A)を鞘部に配し、伸長粘
度の温度依存性がポリマ(A)のそれよりも大きいポリ
マー(B)を芯部に配した芯鞘複合糸であって、糸長手
方向に太部と細部を連続して有し、しかも芯部に配した
ポリマー(B)が切断されることにより部分的に中空部
を有していることを特徴とする、下記特性を有する低収
縮ポリエステル太細糸により達成される。The object of the present invention is to provide a polymer (A), which is substantially a polyester, in a sheath portion, wherein the temperature dependence of the elongational viscosity is larger than that of the polymer (A). Is a core-sheath composite yarn having a thick portion and details continuous in the yarn longitudinal direction, and a hollow portion is partially formed by cutting the polymer (B) disposed in the core portion. This is achieved by a low-shrink polyester thick yarn having the following characteristics, characterized by having:
【0009】沸騰水収縮率=4〜10% 沸騰水収縮後乾熱収縮率≦0% 沸騰水収縮率+沸騰水収縮後乾熱収縮率≦8% 伸度=60〜100% U%≧2.5%Boiling water shrinkage = 4-10% Dry heat shrinkage after boiling water shrinkage ≦ 0% Boiling water shrinkage + dry heat shrinkage after boiling water shrinkage ≦ 8% Elongation = 60-100% U% ≧ 2 .5%
【0010】[0010]
【発明の実施の形態】鞘部に配するポリマー(A)とし
て用いるポリエステルとはエステル結合を有するポリマ
ーのことを指すが、ポリエチレンテレフタレート(PE
T)が最も汎用的であり好ましい。また、ジオール成分
および酸成分の一部が各々15mol%以下の範囲で他
の共重合可能な成分で置換されたものであってもよい。
また、これらは他ポリマー、艶消剤、難燃剤、帯電防止
剤、顔料などの添加物を含有していても良い。さらに、
ポリエステルが内部粒子形成能を有する化合物を含んで
いると、形成された内部粒子が繊維内部で光を乱反射
し、シルク様の美しい光沢が得られ好ましい。内部粒子
形成能を有する化合物としては酢酸ナトリウム、酢酸カ
ルシウム等のアルカリ金属あるいはアルカリ土類金属の
弱酸塩が挙げられるが、酢酸カルシウムが最も好まし
い。なお、本発明で言う内部粒子とは、添加された内部
粒子形成能を有する化合物とポリエステルまたはそれに
含まれるオリゴマーや不純物が複合体を形成し、ポリエ
ステル中に析出した微粒子のことを言うものである。そ
して形成される内部粒子の大きさは、ポリエステルを溶
融状態で顕微鏡で観察した時、平均径として0.01〜
5μm程度であることが好ましい。BEST MODE FOR CARRYING OUT THE INVENTION The polyester used as the polymer (A) disposed on the sheath portion refers to a polymer having an ester bond.
T) is the most general and preferred. Further, a part of the diol component and a part of the acid component may be substituted with another copolymerizable component in a range of 15 mol% or less.
They may also contain additives such as other polymers, matting agents, flame retardants, antistatic agents, pigments and the like. further,
When the polyester contains a compound having the ability to form internal particles, the formed internal particles irregularly reflect light inside the fiber, and a beautiful silky luster is preferably obtained. Examples of the compound having the ability to form internal particles include a weak acid salt of an alkali metal or alkaline earth metal such as sodium acetate and calcium acetate, and calcium acetate is most preferred. The term “internal particles” as used in the present invention refers to fine particles that have been added to a compound having the ability to form internal particles and a polyester or an oligomer or an impurity contained therein to form a complex and precipitated in the polyester. . And the size of the formed internal particles, when observed with a microscope in a molten state of the polyester, as an average diameter of 0.01 ~
It is preferably about 5 μm.
【0011】芯部に配するポリマー(B)としては伸長
粘度の温度依存性がポリマー(A)のそれよりも大きい
ポリマーを用いることが重要である。これは特開平8−
246247号公報記載の方法で選定することができる
が、ポリマー(A)としてPETを用いた場合には、ポ
リマー(B)としてはポリスチレン系ポリマー、ポリア
クリレート系ポリマー、メチルペンテン系ポリマー等が
挙げられる。コストや紡糸性の点からポリスチレン系ポ
リマーが最も好ましい。As the polymer (B) disposed on the core, it is important to use a polymer whose temperature dependence of elongational viscosity is larger than that of the polymer (A). This is disclosed in
In the case where PET is used as the polymer (A), examples of the polymer (B) include polystyrene-based polymers, polyacrylate-based polymers, and methylpentene-based polymers. . From the viewpoint of cost and spinnability, polystyrene polymers are most preferred.
【0012】また、ポリマー(B)の粘度は高い方が、
後述するポリマー(B)の部分切断による中空部の寄与
が大きくなり、ソフト感、反発感、軽量性、保温性を向
上でき好ましい。また、ポリマー(B)には特開平8−
246247号公報記載のように配向抑制効果により生
産性を向上させられる利点もあり、その点からもポリマ
ー(B)の粘度は高い方が好ましい。ポリスチレンの場
合、粘度の指標であるメルトフローレート(MFR、値
が小さいほど高粘度であることを示す)は好ましくは
3.0以下、より好ましくは1.5以下である。Further, the higher the viscosity of the polymer (B) is,
The hollow portion due to partial cutting of the polymer (B), which will be described later, greatly contributes to the softness, resilience, lightness, and heat retention, which is preferable. Further, the polymer (B) has a composition disclosed in
As described in Japanese Patent No. 246247, there is also an advantage that the productivity can be improved by the effect of suppressing the orientation, and from this viewpoint, it is preferable that the viscosity of the polymer (B) is higher. In the case of polystyrene, the melt flow rate (MFR, a smaller value indicates higher viscosity), which is an index of viscosity, is preferably 3.0 or less, more preferably 1.5 or less.
【0013】ポリマー(B)は芯鞘複合糸の芯部に配置
し、繊維表面に露出しないことが重要である。ポリマー
(B)が繊維表面に露出すると、延伸や糸加工時に融着
したり、布帛にした後染色した際くすみが見られる等の
トラブルが発生してしまう。また、ポリマー(B)を芯
鞘複合糸でなくポリマーブレンドとした場合も同様のト
ラブルが発生するのみならず、ブレンド斑による製糸性
の低下や物性斑が発生し易くなるのである。なお、芯鞘
複合の形態は同心円でも偏心でも良いが、複合安定性を
考えると同心円が好ましい。It is important that the polymer (B) is disposed at the core of the core-sheath composite yarn and is not exposed on the fiber surface. When the polymer (B) is exposed on the fiber surface, troubles such as fusing at the time of drawing or yarn processing and dullness when fabric is dyed after dyeing occur. In addition, when the polymer (B) is not a core-sheath composite yarn but a polymer blend, not only the same trouble occurs, but also a decrease in the spinning property due to blend unevenness and unevenness in physical properties are likely to occur. The form of the core-sheath composite may be concentric or eccentric, but concentric circles are preferred in view of composite stability.
【0014】芯部に配するポリマー(B)の芯鞘複合糸
全体に対する複合比は1重量%以上であれば、後述する
ポリマー(B)の部分切断による中空部の寄与が大きく
なり、ソフト感、反発感、軽量性、保温性を向上でき好
ましい。また、ポリマー(B)の配向抑制効果を向上さ
せる点からも複合比は1重量%以上であることが好まし
い。ただし、ポリマー(B)の複合比が過度に高くなる
と製糸性が悪化したり、糸強度が低下するため、ポリマ
ー(B)の複合比は20重量%以下であることが好まし
い。特に異形断面繊維では、アルカリ減量した際、鞘部
のポリマー(A)が除去されるためポリマー(B)が繊
維表面に露出し易くなる。そのため、ポリマー(B)の
複合比は10重量%以下であることが好ましい。If the composite ratio of the polymer (B) disposed in the core to the whole core-sheath composite yarn is 1% by weight or more, the contribution of the hollow portion due to partial cutting of the polymer (B) described later becomes large, and the soft feeling is obtained. This is preferable because it can improve resilience, lightness and heat retention. In addition, the composite ratio is preferably 1% by weight or more from the viewpoint of improving the effect of suppressing the orientation of the polymer (B). However, if the composite ratio of the polymer (B) is excessively high, the spinning property is deteriorated and the yarn strength is reduced. Therefore, the composite ratio of the polymer (B) is preferably 20% by weight or less. In particular, in the case of the modified cross-section fiber, when the alkali is reduced, the polymer (A) in the sheath portion is removed, so that the polymer (B) is easily exposed on the fiber surface. Therefore, the composite ratio of the polymer (B) is preferably 10% by weight or less.
【0015】本発明の低収縮ポリエステル太細糸では下
記の収縮特性を有することが重要である。まず第一にB
WSが4〜10%であることが重要である。BWSが1
0%より大きくなると収縮率が高すぎ、高収縮ポリエス
テル糸と混繊した際、充分なふくらみを得ることができ
ない。BWSが4%より小さくなると収縮が低すぎ、高
収縮ポリエステルと混繊した際、撚り止めセット等を行
うと糸条表面にループが発生し、製編織工程でトラブル
となる。BWSは5〜8%であるとこの2つの要求を高
度に満たすことが可能であり、好ましい。第二にDSA
Bは0%以下、すなわち沸騰水収縮後の糸を高温乾熱処
理した際、糸が伸長することが重要である。通常、収縮
差混繊糸が撚糸されている場合、低収縮ポリエステル太
細糸、高収縮ポリエステル糸の双方が収縮すると低収縮
ポリエステル太細糸は高収縮ポリエステル糸に引っ張ら
れ収縮差が発現しにくい。しかしながら、DSABは0
%以下であると低収縮ポリエステル糸は高収縮ポリエス
テル糸とは逆に伸長するため撚糸された状態でも高収縮
ポリエステル糸との収縮差を発現しやすく、よりふくら
み感が増大するのである。DSABが0%より大きくな
るとこのような効果が得られず、ふくらみ感、ソフト感
に乏しい布帛しか得られない。第三にBWS+DSAB
は8%以下であることが重要である。これはBWSと同
様に高収縮ポリエステル糸と混繊した際、充分なふくら
みを得るためである。BWS+DSABは好ましくは2
〜7%である。なお、BWS+DSABはBWS値とD
SAB値の和であり、糸に沸騰水処理、乾熱処理を連続
して施した時のトータルの収縮率に対応する値である。It is important that the low shrinkage polyester thick yarn of the present invention has the following shrinkage characteristics. First of all B
It is important that WS is between 4 and 10%. BWS is 1
If it is more than 0%, the shrinkage is too high, and when blended with a high shrinkage polyester yarn, sufficient swelling cannot be obtained. If the BWS is less than 4%, the shrinkage is too low, and when mixed with a high shrinkage polyester, a loop is formed on the surface of the yarn if a twist-prevention set or the like is performed, resulting in a trouble in the knitting and weaving process. A BWS of 5 to 8% is preferable because these two requirements can be highly satisfied. Second, DSA
B is 0% or less, that is, it is important that the yarn elongates when the yarn after boiling water shrinkage is subjected to high-temperature dry heat treatment. Normally, when the low-shrinkage polyester mixed yarn is twisted, when both the low-shrinkage polyester thick yarn and the high-shrinkage polyester yarn shrink, the low-shrinkage polyester thick yarn is pulled by the high-shrinkage polyester yarn and the shrinkage difference is hardly developed. . However, DSAB is 0
% Or less, the low-shrinkage polyester yarn extends in the opposite direction to the high-shrinkage polyester yarn, so that even in a twisted state, a difference in shrinkage from the high-shrinkage polyester yarn is easily exhibited, and the sense of swelling is further increased. When DSAB is larger than 0%, such an effect cannot be obtained, and only a fabric having poor swelling and softness can be obtained. Third, BWS + DSAB
It is important that is less than 8%. This is to obtain sufficient swelling when blended with a high shrinkage polyester yarn as in BWS. BWS + DSAB is preferably 2
~ 7%. Note that BWS + DSAB is the BWS value and D
This is the sum of the SAB values, and corresponds to the total shrinkage when the yarn is continuously subjected to boiling water treatment and dry heat treatment.
【0016】本発明の低収縮ポリエステル太細糸のウー
スター斑(U%)は2.5%以上であることが重要であ
る。ここでU%とはZellweger社製 USTE
RTESTER 1 ModelCを使用し、8m/分
の速度で糸を給糸しながらノーマルモードで測定を行っ
た、糸の太細の程度を表す値である。U%が2.5%未
満では本発明の低収縮ポリエステル太細糸を単独で使用
した場合の杢感、ドライ感が不足してしまう。U%は好
ましくは4.0%以上である。また、U%測定で観測さ
れる太部と細部の周期は数cm〜数十cmであることが
好ましい。これは、図3に示すようにU%測定チャート
において、突発部が発生する間隔で評価することが可能
である。また、これとは別に、数十m単位の超ロングピ
ッチの繊度変化があると、さらに微妙な杢感が加わり好
ましい。これは、やはりZellweger社製 US
TER TESTER 1 ModelCを使用し、2
00m/分の速度で糸を給糸しながらハーフモードで測
定を行った時に観測される波(繊度変化周期)の波長で
評価することができる(図4)。It is important that the low-shrinkage polyester thick yarn of the present invention has a Worster spot (U%) of 2.5% or more. Here, U% is USTE manufactured by Zellweger.
This is a value indicating the degree of fineness of the yarn, which was measured in the normal mode while supplying the yarn at a speed of 8 m / min using RTESTER 1 Model C. If the U% is less than 2.5%, the feeling of heat and dryness when the low-shrink polyester thick yarn of the present invention is used alone is insufficient. U% is preferably 4.0% or more. Further, the period of the thick part and the detail observed in the U% measurement is preferably several cm to several tens cm. This can be evaluated at intervals at which a sudden portion occurs in the U% measurement chart as shown in FIG. In addition, if there is a change in fineness of a super long pitch of several tens of meters apart from this, a more subtle feeling is added, which is preferable. This is also US made by Zellweger
TER TESTER 1 Using ModelC, 2
It can be evaluated by the wavelength of the wave (fineness change cycle) observed when the measurement is performed in the half mode while feeding the yarn at a speed of 00 m / min (FIG. 4).
【0017】本発明の低収縮ポリエステル糸では芯部に
配されたポリマー(B)が切断されることにより部分的
に中空部を有していることが特に重要である。この一例
を図1に示すが、ポリマー(B)が存在している中実部
とポリマー(B)が切断され空孔が発生している中空部
が数十μmオーダーで交互に存在している。そして、こ
の数十μmオーダーで中空部が存在していることによ
り、通常の中実糸に比べ曲げ剛性を低下させ、糸の伸度
が100%以下となるまで延伸されていても充分なソフ
ト感を発現させるのである。また、この中空部がクッシ
ョンの役割を果たし、さらにソフト感を向上させるのみ
ならず、糸の反発感も飛躍的に向上しているのである。
この中実部の平均長さは10〜100μm、中空部は平
均長さが5〜100μmであればさらにソフト感、反発
感が向上し好ましいのである。ここで、中空部とは長さ
が1μm以上のものを言い、中実部に所々入る場合があ
るクラックは中空部には含めない。さらに、中空部が若
干押しつぶされた形態を採ると、従来の太細糸とは比較
にならないほど超微細な、数十μmオーダーで太部/細
部が交互に配置された太細糸となり、独特の繊細なソフ
トでドライな触感、光の乱反射による美しい光沢が得ら
れ好ましい。また、本発明の低収縮ポリエステル糸の偏
光顕微鏡下での側面写真を図2に示すが、中実部と中空
部で干渉縞の見え方が異なっている。これは、中実部と
中空部の配向が異なっていることを示しており、このよ
うに数十μmオーダーという超微細なピッチで糸長手方
向に配向が異なる糸は従来存在していなかった。これに
より、従来の太細糸では決して得ることのできなかった
独特の繊細なソフトでドライな触感、光の乱反射による
美しい光沢がさらに強調され好ましい。また、通常PE
T糸は比重が1.37程度であるが、本発明の低収縮ポ
リエステル糸は中空部を有しており、さらにポリマー
(B)としてポリスチレンやポリメチルペンテン等の軽
量性ポリマーを使用すると見かけ比重が通常PET糸に
比べ小さくなり、大きな軽量効果を得ることができる点
も本発明の特徴の一つである。なお、ポリスチレンは比
重1.1、ポリメチルペンテンは0.8である。さら
に、この中空部により保温性も通常の中実PET糸に比
べ向上するのである。In the low shrinkage polyester yarn of the present invention, it is particularly important that the polymer (B) disposed in the core part has a hollow part by being cut. One example of this is shown in FIG. 1, in which a solid portion in which the polymer (B) is present and a hollow portion in which the polymer (B) is cut to form voids are alternately present on the order of several tens of μm. . The presence of the hollow portion on the order of several tens of μm lowers the bending rigidity as compared with a normal solid yarn, and provides a sufficient softness even if the yarn is stretched to 100% or less. The feeling is expressed. In addition, this hollow portion serves as a cushion, and not only improves the soft feeling, but also dramatically improves the rebound feeling of the yarn.
If the average length of the solid portion is 10 to 100 μm and the average length of the hollow portion is 5 to 100 μm, the softness and resilience are further improved, which is preferable. Here, the hollow portion refers to a portion having a length of 1 μm or more, and a crack that may enter a solid portion in some places is not included in the hollow portion. In addition, when the hollow part is slightly crushed, it becomes a very fine thread that is super-fine, in which the thick part / detail is alternately arranged on the order of several tens of μm, which is incomparable to the conventional thick and thin thread. It is preferable because of its delicate soft and dry feel and beautiful gloss due to irregular reflection of light. FIG. 2 is a side view photograph of the low shrinkage polyester yarn of the present invention under a polarizing microscope. The appearance of interference fringes is different between a solid portion and a hollow portion. This indicates that the orientations of the solid portion and the hollow portion are different from each other, and there has been no yarn having a different orientation in the yarn longitudinal direction at an ultrafine pitch of the order of several tens of μm. As a result, the unique delicate soft and dry tactile sensation and the beautiful luster due to the irregular reflection of light, which could never be obtained with a conventional thick thread, are further emphasized, which is preferable. Also, usually PE
The specific gravity of the T yarn is about 1.37, but the low shrinkage polyester yarn of the present invention has a hollow portion, and the apparent specific gravity is apparent when a lightweight polymer such as polystyrene or polymethylpentene is used as the polymer (B). However, it is one of the features of the present invention that it is smaller than ordinary PET yarn, and a large lightening effect can be obtained. The specific gravity of polystyrene is 1.1 and that of polymethylpentene is 0.8. Further, the heat retention is improved by the hollow portion as compared with the ordinary solid PET yarn.
【0018】本発明の低収縮ポリエステル糸は後の加工
の汎用性を考えると糸の伸度は60〜100%とするこ
とが重要である。伸度が100%を超えると従来技術の
ような問題が発生し、伸度が60%より小さくなるとソ
フト感が損なわれるのである。伸度は好ましくは70〜
80%である。It is important that the low shrinkage polyester yarn of the present invention has an elongation of 60 to 100% in view of the versatility of subsequent processing. If the elongation exceeds 100%, a problem as in the prior art occurs, and if the elongation is less than 60%, the soft feeling is impaired. The elongation is preferably 70 to
80%.
【0019】本発明の低収縮ポリエステル糸の断面形状
には特に制限は無く、丸断面、多葉断面、十字型、H
型、W型等の異形断面、中空断面等を採用することがで
きる。ドライ感やきしみ感を得るためには三葉、六葉、
八葉等の多葉断面が好ましい。さらにシルク様の光沢を
強調するためには三葉断面が特に好ましい。また、単糸
繊度も特に制限はないが、混繊糸の鞘糸に使用する場合
を考えると、単糸繊度は0.3〜5.0dtexが好ま
しい。より好ましくは0.6〜3.0dtexである。The cross-sectional shape of the low shrinkage polyester yarn of the present invention is not particularly limited.
Irregular sections such as molds and W-shaped sections, hollow sections, and the like can be employed. To get a dry and squeaky feeling,
A multi-leaf section such as Yatsuha is preferred. In order to further enhance the silky luster, a trilobal section is particularly preferred. The single-fiber fineness is also not particularly limited, but considering the case where the single-fiber fineness is used as a sheath yarn of mixed fiber, the single-fiber fineness is preferably 0.3 to 5.0 dtex. More preferably, it is 0.6 to 3.0 dtex.
【0020】本発明の低収縮ポリエステル糸は単独で用
いることも可能であるが、これよりBWS+DSABが
高い高収縮ポリエステル糸と混繊して用いることができ
る。これにより、上記特性に更に高度なふくらみ感を付
加でき、ソフト感、反発感もレベルアップすることがで
きる。上記高収縮ポリエステル糸のBWS+DSABは
12%以上であれば更にふくらみ感に優れ好ましい。Although the low shrinkage polyester yarn of the present invention can be used alone, it can be mixed with a high shrinkage polyester yarn having a higher BWS + DSAB. As a result, a higher level of swelling can be added to the above characteristics, and the softness and the resilience can be improved. When the BWS + DSAB of the high shrinkage polyester yarn is 12% or more, it is more excellent in swelling feeling and is preferable.
【0021】さらに、上記混繊糸のU%は1.5%以下
であると、いわゆる従来の太細糸により得られる霜降り
調の布帛表面とは異なり、一見染色斑の無い美しい表面
であるが、よく見ると微妙な色合いの変化をみせる布帛
表面審美性に富んだ布帛が得られ好ましい。混繊糸のU
%は、さらに好ましくは1.0%以下である。特に、紡
糸混繊法により得た混繊糸でこのような特徴が発現し易
い。本発明の紡糸混繊糸がこのような特異な性質を持つ
理由は明らかではないが、混繊延伸時の延伸張力分担が
単独糸の延伸の場合と変化するためではないかと推定さ
れる。Further, when the U% of the mixed fiber is 1.5% or less, unlike a marbling-like fabric surface obtained by a so-called conventional thick and thin yarn, the surface is apparently beautiful without any dye spots. It is preferable to obtain a fabric rich in surface aesthetics which shows a subtle change in color when viewed closely. U of mixed fiber
% Is more preferably 1.0% or less. In particular, such characteristics are easily exhibited in the mixed fiber obtained by the spinning method. The reason why the spun mixed fiber of the present invention has such a unique property is not clear, but it is presumed that the drawing tension share during the mixed fiber drawing is different from that in the case of drawing a single yarn.
【0022】また、本発明の低収縮ポリエステル糸と混
繊するポリエステル糸としては捲縮を有するポリエステ
ル糸を用いると、高収縮ポリエステル糸とは異なった質
感の豊かなふくらみ、ストレッチ性、反発感を付与する
ことが可能である。この捲縮を有するポリエステル糸と
してサイドバイサイド複合による潜在捲縮糸を用いると
反発感がさらに向上し、より好ましい。また、上記の高
収縮ポリエステル糸としてポリトリメチレンテレフタレ
ートやポリテトラメチレンテレフタレート等のストレッ
チ性に優れるポリエステル糸を使用すると、上記高収縮
ポリエステル糸とはまた異なったソフトで反発感に優れ
た風合いとなり好ましい。Further, when a polyester yarn having crimp is used as the polyester yarn mixed with the low shrinkage polyester yarn of the present invention, rich swelling, stretchability and resilience with a texture different from the high shrinkage polyester yarn are obtained. It is possible to give. It is more preferable to use a latently-crimped yarn formed by side-by-side composite as the polyester yarn having this crimp, because the resilience is further improved. Further, when a polyester yarn having excellent stretchability such as polytrimethylene terephthalate or polytetramethylene terephthalate is used as the high shrinkage polyester yarn, the texture becomes excellent in resilience, which is different from the high shrinkage polyester yarn and is preferable. .
【0023】また、エア交絡による混繊糸とする場合
は、混繊糸の交絡度を20以下とすると、糸条の自由度
が大きくなり布帛の精練や中間セットの際、低収縮糸と
高収縮糸の収縮率差を発現しやすく好ましい。交絡度は
好ましくは10以下である。In the case where the mixed yarn is formed by air entanglement, if the entanglement degree of the mixed yarn is set to 20 or less, the degree of freedom of the yarn is increased, and the low shrinkage yarn and the high shrinkage yarn are used during the scouring or intermediate setting of the fabric. This is preferable because a difference in shrinkage ratio of shrinkable yarn is easily exhibited. The degree of confounding is preferably 10 or less.
【0024】混繊方法としては、同一口金から低収縮ポ
リエステル糸と高収縮ポリエステル糸を紡糸する紡糸混
繊法の方が後混繊法に比べはるかに低コストとなり好ま
しい。また、低収縮糸と高収縮糸を別々に製造し、しか
る後にインターレースノズルを利用した後混繊を行うこ
とも可能であるが、低収縮糸と高収縮糸の混繊のこなれ
を向上させ、糸条表面の弛みを抑制するために高度の交
絡が付与され、交絡度が20以上となってしまう場合が
多くなるのに対し、紡糸混繊法を採用すると交絡度を2
0以下に低下させても、混繊のこなれが良好であり糸条
表面の弛みも発生しないという利点もある。もちろんタ
スランノズルを利用したり、合撚や複合仮撚といった混
繊法ももちろん採用することができる。As a fiber mixing method, a spinning fiber mixing method in which a low shrinkage polyester yarn and a high shrinkage polyester yarn are spun from the same die is preferable because the cost is much lower than that of the post-fiber mixing method. It is also possible to separately manufacture the low-shrink yarn and the high-shrink yarn, and then to perform the blending after using the interlace nozzle, but to improve the blending of the low-shrink yarn and the high-shrink yarn, A high degree of entanglement is applied to suppress the slack of the yarn surface, and the degree of entanglement often becomes 20 or more.
Even if it is reduced to 0 or less, there is also an advantage that the fiber separation is good and the yarn surface does not loosen. Of course, a fiber blending method such as using a Taslan nozzle or ply twisting or composite false twisting can of course be employed.
【0025】本発明の低収縮ポリエステル糸は、例えば
以下のような製造方法により得ることができる。すなわ
ち、低収縮ポリエステル糸としては芯部にポリスチレ
ン、鞘部に内部粒子形成能を有する化合物として酢酸カ
ルシウムを含むPETを配した芯鞘複合糸を、高収縮ポ
リエステル糸としてはイソフタル酸(IPA)を共重合
したPET糸を同一口金から紡糸混繊糸として紡糸温度
280〜300℃、紡糸速度2500〜6000m/分
で紡糸し、一旦混繊POYを巻き取る。この混繊POY
を延伸温度80〜105℃、熱セット温度110〜13
0℃で延伸する。この時、低収縮ポリエステル糸の伸度
が60〜100%となるように延伸倍率を設定する。ま
た、紡糸した糸を一旦巻き取ることなくそのまま延伸す
る紡糸直接延伸法を採用することももちろん可能であ
る。The low shrinkage polyester yarn of the present invention can be obtained, for example, by the following production method. That is, a core-sheath composite yarn in which polystyrene is provided in the core as the low shrinkage polyester yarn and PET containing calcium acetate as the compound having the ability to form internal particles is provided in the sheath portion, and isophthalic acid (IPA) is used as the high shrinkage polyester yarn. The copolymerized PET yarn is spun from the same die as a spun mixed yarn at a spinning temperature of 280 to 300 ° C and a spinning speed of 2500 to 6000 m / min, and the mixed POY is once wound. This mixed fiber POY
At a stretching temperature of 80 to 105 ° C. and a heat setting temperature of 110 to 13
Stretch at 0 ° C. At this time, the stretching ratio is set so that the elongation of the low shrinkage polyester yarn is 60 to 100%. In addition, it is of course possible to employ a direct spinning drawing method in which the spun yarn is drawn without being wound once.
【0026】本発明により得られた糸は織編物などの布
帛となし、ブラウス、スーツ、パンツ、コート等の衣料
用途に好適に用いられる。The yarn obtained by the present invention is made into a fabric such as a woven or knitted fabric, and is suitably used for clothing such as blouses, suits, pants and coats.
【0027】[0027]
【実施例】以下、本発明を実施例を用いて詳細に説明す
る。なお、実施例中の測定方法は以下の方法を用いた A.極限粘度[η] オルソクロロフェノール中25℃で測定した。 B.メルトフローレート(MFR) ISO R 1133にしたがい、200℃、5kg荷
重で測定した。 C.収縮率 沸騰水収縮率(BWS)=[(L0−L1)/L0)]×
100 沸騰水収縮後乾熱収縮率(DSAB)=[(L1−L2)
/L1)]×100 L0:糸をかせ取りし初荷重0.09cN/dtex下
で測定したかせの原長 L1:L0を測定したかせを実質的に荷重フリーの状態で
沸騰水中で15分間処理し、風乾後初荷重0.09cN
/dtex下でのかせ長 L2:L1を測定したかせを実質的に荷重フリーの状態で
乾熱(180℃)で15分間処理し、初荷重0.09c
N/dtex下でのかせ長 D.伸度 JIS規格 L1013にしたがい荷重−伸長曲線を求
め、伸びを初期試料長で割り伸度とした。 E.中実部、中空部の平均長 繊維側面を光学顕微鏡で200μmにわたって観察し、
そこでの中実部、中空部長を測定する。それぞれ100
箇所づつ測定しそれの平均値を求める。 F.U%(ウースター斑) Zellweger社製 USTER TESTER
1 ModelCを使用し、8m/分の速度で糸を給糸
しながらノーマルモードで測定を行った。 G.交絡度 適当な長さの糸を取り出し、下端に0.089cN/d
tex(0.1gf/d)の荷重をかける。次いで適当
なニードルを糸に突き刺して静かに持ち上げ、ニードル
が停止した距離(cm)を100回測定して平均値L
(cm)を求め、次式により交絡度を算出する。 交絡度=100÷(2×L) H.布帛評価 得られた布帛のふくらみ感、ソフト感、反発感、軽量
感、保温性について官能評価を1〜5級で行い、3級以
上を合格とした。DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail with reference to embodiments. In addition, the measuring method in an Example used the following method. Intrinsic viscosity [η] Measured at 25 ° C. in orthochlorophenol. B. Melt flow rate (MFR) Measured at 200 ° C. under a load of 5 kg according to ISO R 1133. C. Shrinkage boiling water shrinkage (BWS) = [(L 0 -L 1) / L 0)] ×
100 Dry heat shrinkage after boiling water shrinkage (DSAB) = [(L 1 -L 2 )
/ L 1 )] × 100 L 0 : The original length of the skein which has been skeined and measured under an initial load of 0.09 cN / dtex. L 1 : The skein which has been measured for L 0 is substantially free of load and is in boiling water. For 15 minutes, and after air drying, initial load 0.09 cN
Skew length under / dtex L 2 : The skein measured L 1 was treated with dry heat (180 ° C.) for 15 minutes in a substantially load-free state, and the initial load was 0.09 c.
Skew length under N / dtex Elongation A load-elongation curve was determined according to JIS standard L1013, and the elongation was divided by the initial sample length to obtain the elongation. E. FIG. Observing the average length of the solid and hollow fiber sides over 200 μm with an optical microscope,
Then, the lengths of the solid portion and the hollow portion are measured. 100 each
Measure each part and determine the average value. F. U% (Worcester spots) USTER TESTER manufactured by Zellweger
The measurement was performed in the normal mode while supplying the yarn at a speed of 8 m / min using 1 Model C. G. FIG. Degree of confounding Take out a yarn of appropriate length and apply 0.089 cN / d to the lower end.
A load of tex (0.1 gf / d) is applied. Then, a suitable needle is inserted into the thread and gently lifted, and the distance (cm) at which the needle stops is measured 100 times, and the average value L
(Cm) is calculated, and the degree of confounding is calculated by the following equation. Degree of confounding = 100 ° (2 × L) Fabric Evaluation Sensory evaluation was performed on grades 1 to 5 for the swelling, softness, resilience, lightness, and heat retention of the obtained fabric.
【0028】実施例1 ポリマー(A)として[η]=0.63で内部粒子形成
能を有する化合物として酢酸カルシウムをPETに対し
0.07重量%含み、酸化チタンを含まないホモPET
(ブライトPET)を用い、ポリマー(B)として旭化
成社製ポリスチレンである“スタイロン”685(MF
R=2.1)を用いた。一方、高収縮ポリエステル糸を
形成するポリマーとしてIPAを全酸成分に対して8m
ol%、ビスフェノールAエチレンオキシド付加物(B
PA−EO)を全グリコール成分に対して3mol共重
合した、酸化チタンを含まない[η]=0.65の高収
縮PETを用いた。そして、低収縮ポリエステル糸側と
して、該ブライトPETを295℃で溶融し三葉断面の
鞘部に、該ポリスチレンを210℃で溶融し三葉断面の
芯部に配した芯鞘複合糸を紡糸温度290℃で吐出し
た。この時、ポリスチレン複合比を芯鞘複合糸全体の重
量に対し4.5重量%とした。一方、高収縮ポリエステ
ル糸側として該高収縮PETを285℃で溶融し三葉断
面糸として紡糸温度290℃で、低収縮ポリエステル糸
側と同一の口金3から吐出した(図5)。この時、3種
類のポリマーとも絶対濾過径15μmのステンレス製不
織布フィルター2を用い濾過を行った後、口金3へ導い
た。そして、口金下1.8mでガイド給油装置6により
集束給油した後、インターレースノズル7により交絡を
付与した。インターレースノズルへの供給空気圧力は
0.07MPaとした。そして、紡糸速度3000m/
分で、低収縮ポリエステル糸側46dtex、18フィ
ラメント、高収縮ポリエステル糸側46dtex、18
フィラメントとなるよう混繊POYを巻き取った。この
時の第1ローラー8および第2ローラー9の周速は同一
とし、これを紡糸速度とした。Example 1 Homo-PET containing 0.07% by weight of PET based on PET as a compound having internal particle-forming ability with [η] = 0.63 as a polymer (A) and not containing titanium oxide
(Bright PET) and “STYRON” 685 (MF), a polystyrene manufactured by Asahi Kasei Corporation, as the polymer (B).
R = 2.1) was used. On the other hand, IPA was used as a polymer to form a high-shrinkage polyester yarn in an amount of 8 m with respect to all acid components.
ol%, bisphenol A ethylene oxide adduct (B
PA-EO) was copolymerized with 3 mol of all glycol components, and a high shrinkage PET having no titanium oxide and [η] = 0.65 was used. Then, as the low shrinkage polyester yarn side, a core-sheath composite yarn obtained by melting the bright PET at 295 ° C. and disposing the polystyrene at 210 ° C. and disposing it on the core of the trilobal cross section at a spinning temperature of 295 ° C. Discharged at 290 ° C. At this time, the polystyrene composite ratio was set to 4.5% by weight based on the weight of the entire core-sheath composite yarn. On the other hand, the high-shrinkage PET was melted at 285 ° C. as the high-shrinkage polyester yarn side, and was discharged as a trilobal cross-section yarn at a spinning temperature of 290 ° C. from the same die 3 as the low-shrinkage polyester yarn side (FIG. 5). At this time, all three types of polymers were filtered using a stainless steel nonwoven fabric filter 2 having an absolute filtration diameter of 15 μm, and then guided to a base 3. Then, after the bundle was refueled 1.8 g below the base by the guide refueling device 6, confounding was given by the interlace nozzle 7. The supply air pressure to the interlace nozzle was 0.07 MPa. And the spinning speed 3000m /
Minutes, low shrinkage polyester yarn side 46 dtex, 18 filaments, high shrinkage polyester yarn side 46 dtex, 18
The mixed fiber POY was wound into a filament. At this time, the peripheral speeds of the first roller 8 and the second roller 9 were the same, and this was used as the spinning speed.
【0029】この混繊POYを1対のホットローラーを
有する延伸機を用いて延伸熱処理をした(図6)。この
時、延伸倍率は1.63倍、第1ホットローラー(1H
R)温度は97℃、第2ホットローラー(2HR)温度
は122℃、延伸速度950m/分とし、糸条をホット
ローラーに6回巻き付けた。This mixed fiber POY was subjected to a stretching heat treatment using a stretching machine having a pair of hot rollers (FIG. 6). At this time, the stretching ratio was 1.63 times, and the first hot roller (1H
R) The temperature was 97 ° C, the second hot roller (2HR) temperature was 122 ° C, the stretching speed was 950 m / min, and the yarn was wound around the hot roller six times.
【0030】得られた混繊糸の物性を表1に示すが、低
収縮ポリエステル糸はBWSが充分低く、DSABも負
の値となり優れた収縮特性であり、高収縮ポリエステル
糸側も充分収縮率が高く優れた収縮特性であった。ま
た、低収縮ポリエステル糸はU%=4.2%であり、さ
らに芯部に配したポリスチレンが切断され部分的に中空
部が形成されており、糸長手方向に数cm〜数10cm
程度の太細に加えて数十μmオーダーの太細、配向斑を
有するものとなっていた。これに撚り係数3000の弱
撚を施し、スチームにて撚り止めセットを行った。これ
を経糸および緯糸に用いて平織りを作製した。それに9
0℃温水中でリラックス精練により収縮を施した後18
0℃で中間セットを行った。そして、常法にしたがい2
0重量%のアルカリ減量を施した後、やはり常法にした
がい分散染料を用い青色に染色を施した。得られた布帛
は繊細なふくらみ感があり、ソフト感、反発感に優れ、
しかも繊細なドライタッチが得られ優れた風合いであっ
た。また、軽量感、保温性にも優れていた。さらに、三
葉断面、内部粒子の効果により美しいシルク様光沢を有
し、しかも一見染色斑の無いように見えるが、よく見る
と微妙な色合いの変化を示す布帛表面審美性に優れたも
のであった。The physical properties of the obtained mixed yarn are shown in Table 1. The low shrinkage polyester yarn has a sufficiently low BWS and a negative DSAB, which is an excellent shrinkage property. And excellent shrinkage characteristics. The low-shrinkage polyester yarn has U% = 4.2%, and the polystyrene disposed on the core is cut to form a hollow part, and several cm to several tens cm in the yarn longitudinal direction.
In addition to the fineness of the order, it had a thickness of several tens of μm and uneven alignment. This was subjected to a weak twist having a twist coefficient of 3000, and a twist preventing set was performed with steam. This was used for warp and weft to make plain weave. And 9
After shrinking by relaxing scouring in hot water at 0 ° C, 18
An intermediate set was performed at 0 ° C. And according to the usual law 2
After the alkali weight reduction of 0% by weight, a blue dyeing was carried out using a disperse dye in the usual manner. The obtained fabric has a delicate swelling feeling, and is excellent in softness and resilience,
Moreover, a delicate dry touch was obtained and the texture was excellent. Also, it was excellent in lightness and heat retention. Furthermore, it has a beautiful silk-like luster due to the effects of the trilobal section and the internal particles, and at first glance it looks like there is no staining spot, but when viewed closely, it shows a fine change in color and is excellent in fabric surface aesthetics. Was.
【0031】[0031]
【表1】 [Table 1]
【0032】[0032]
【表2】 [Table 2]
【0033】実施例2 2HR温度を115℃として実施例1と同様に延伸を行
った。得られた混繊糸の物性を表1に示すが、低収縮ポ
リエステル糸はBWSが充分低く、DSABも負の値と
なり優れた収縮特性であり、高収縮ポリエステル糸側も
充分収縮率が高く優れた収縮特性であった。また、低収
縮ポリエステル糸はU%=4.3%であり、さらに芯部
に配したポリスチレンが切断され部分的に中空部が形成
されており、糸長手方向に数cm〜数10cm程度の太
細に加えて数十μmオーダーの太細、配向斑を有するも
のとなっていた。これを用いて実施例1と同様に布帛を
作製した。得られた布帛は繊細なふくらみ感があり、ソ
フト感、反発感に優れ、しかも繊細なドライタッチが得
られ優れた風合いであった。また、軽量感、保温性にも
優れていた。さらに、三葉断面、内部粒子の効果により
美しいシルク様光沢を有し、しかも一見染色斑の無いよ
うに見えるが、よく見ると微妙な色合いの変化を示す布
帛表面審美性に優れたものであった。しかし、低収縮ポ
リエステル糸の収縮率が高いため、ふくらみ感は実施例
1には一歩譲るものであった。Example 2 Stretching was carried out in the same manner as in Example 1 except that the 2HR temperature was 115 ° C. The physical properties of the obtained mixed yarn are shown in Table 1. The low shrinkage polyester yarn has a sufficiently low BWS and a negative value of DSAB, which is an excellent shrinkage property. Shrinkage properties. Further, the low-shrinkage polyester yarn has U% = 4.3%, and the polystyrene disposed in the core is cut to form a hollow part partially, and has a thickness of several cm to several tens cm in the yarn longitudinal direction. In addition to the fineness, the film had a thickness of several tens of μm and had uneven alignment. Using this, a fabric was produced in the same manner as in Example 1. The resulting fabric had a delicate swelling feeling, was excellent in softness and resilience, and had a delicate dry touch and an excellent texture. Also, it was excellent in lightness and heat retention. Furthermore, it has a beautiful silk-like luster due to the effects of the trilobal section and the internal particles, and at first glance it looks like there is no staining spot, but when viewed closely, it shows a fine change in color and is excellent in fabric surface aesthetics. Was. However, because of the high shrinkage of the low shrinkage polyester yarn, the feeling of swelling was one step further than in Example 1.
【0034】実施例3 図7の装置を用い、紡糸直接延伸とし、口金、吐出量を
変更して実施例1と同様に紡糸を行った。この時、第1
ホットネルソンローラー(1HNR)速度を2700m
/分、第2ホットネルソンローラー(2HNR)速度を
4700m/分、1HNR温度を105℃、2HNR温
度を138℃とし、糸条をホットネルソンローラーに6
回巻き付け、ワインダーの速度を4655m/分とし
た。得られた混繊糸は低収縮ポリエステル糸が三葉断面
56dtex、72フィラメント、高収縮ポリエステル
糸が33dtex、12フィラメントであった。物性を
表1に示すが、低収縮ポリエステル糸はBWSが充分低
く、DSABも負の値となり優れた収縮特性であり、高
収縮ポリエステル糸側も充分収縮率が高く優れた収縮特
性であった。また、低収縮ポリエステル糸はU%=2.
9%であり、さらに芯部に配したポリスチレンが切断さ
れ部分的に中空部が形成されており、糸長手方向に数c
m〜数10cm程度の太細に加えて数十μmオーダーの
太細、配向斑を有するものとなっていた。これを用いて
実施例1と同様に布帛を作製した。得られた布帛は繊細
なふくらみ感があり、ソフト感、反発感に優れ、しかも
繊細なドライタッチが得られ優れた風合いであった。ま
た、軽量感、保温性にも優れていた。さらに、三葉断
面、内部粒子の効果により美しいシルク様光沢を有し、
しかも一見染色斑の無いように見えるが、よく見ると微
妙な色合いの変化を示す布帛表面審美性に優れたもので
あった。Example 3 Using the apparatus shown in FIG. 7, spinning was performed directly, and spinning was performed in the same manner as in Example 1 except that the die and the discharge amount were changed. At this time, the first
Hot Nelson roller (1HNR) speed 2700m
/ Second, the speed of the second hot Nelson roller (2HNR) is 4700 m / min, the temperature of the 1HNR is 105 ° C., the temperature of the 2HNR is 138 ° C.
Winding was performed at a speed of 4655 m / min. The resulting mixed yarn had a low shrinkage polyester yarn having a trilobal cross section of 56 dtex and 72 filaments, and a high shrinkage polyester yarn having a 33 dtex and 12 filaments. The physical properties are shown in Table 1. The low shrinkage polyester yarn had a sufficiently low BWS and a negative value of DSAB, which was an excellent shrinkage property. The high shrinkage polyester yarn also had a sufficiently high shrinkage rate and an excellent shrinkage property. U% = 2.
9%, and further, the polystyrene disposed in the core is cut to form a hollow part partially, and several c in the yarn longitudinal direction.
In addition to the thickness of about m to several tens of cm, it had a thickness of about several tens of μm and an uneven alignment. Using this, a fabric was produced in the same manner as in Example 1. The resulting fabric had a delicate swelling feeling, was excellent in softness and resilience, and had a delicate dry touch and an excellent texture. Also, it was excellent in lightness and heat retention. In addition, it has a beautiful silky luster due to the effect of the trilobal section and internal particles,
In addition, although it appears that there is no staining spot at first glance, the fabric surface is excellent in aesthetics showing a slight change in color when viewed closely.
【0035】実施例4 高収縮ポリエステル糸側に使用するポリマーを高収縮P
ETから酸化チタンを含まない[η]=0.90のホモ
ポリブチレンテレフタレート(ホモPBT)とし、延伸
倍率を1.40倍として実施例1と同様に、紡糸、延伸
熱処理を行った。得られた混繊糸の物性を表1に示す
が、低収縮ポリエステル糸はBWSが充分低く、DSA
Bも負の値となり優れた収縮特性であり、高収縮ポリエ
ステル糸側も充分収縮率が高く優れた収縮特性であっ
た。また、低収縮ポリエステル糸はU%=4.5%であ
り、さらに芯部に配したポリスチレンが切断され部分的
に中空部が形成されており、糸長手方向に数cm〜数1
0cm程度の太細に加えて数十μmオーダーの太細、配
向斑を有するものとなっていた。これを用いて実施例1
と同様に布帛を作製した。得られた布帛は繊細なふくら
み感があり、ソフト感、反発感に優れ、しかも繊細なド
ライタッチが得られ優れた風合いであった。また、軽量
感、保温性にも優れていた。さらに、三葉断面、内部粒
子の効果により美しいシルク様光沢を有していた。さら
に、低収縮ポリエステル糸が極細糸であるため独特のパ
ウダータッチ、ソフト感が得られ、また高収縮ポリエス
テル糸として用いたPBTにより、良好なストレッチ性
が発現し、加えて異色効果が得られ、表面変化に富んだ
外観となった。Example 4 The polymer used on the high shrinkage polyester yarn side was high shrinkage P
From the ET, homopolybutylene terephthalate (homo-PBT) containing no titanium oxide [η] = 0.90 and a draw ratio of 1.40 times were subjected to spinning and drawing heat treatment as in Example 1. The physical properties of the obtained mixed fiber are shown in Table 1. The low shrinkage polyester yarn has a sufficiently low BWS and a low DSA.
B also became a negative value and was an excellent shrinkage property, and the high shrinkage polyester yarn side also had a sufficiently high shrinkage rate and an excellent shrinkage property. Further, the low-shrinkage polyester yarn has U% = 4.5%, and the polystyrene disposed in the core is cut to form a hollow part, and several cm to several tens in the longitudinal direction of the yarn.
In addition to the thickness of about 0 cm, it had a thickness of several tens of μm and a variation in alignment. Example 1 using this
A fabric was produced in the same manner as described above. The resulting fabric had a delicate swelling feeling, was excellent in softness and resilience, and had a delicate dry touch and an excellent texture. Also, it was excellent in lightness and heat retention. Furthermore, it had a beautiful silky luster due to the effect of the trilobular section and internal particles. Furthermore, since the low shrinkage polyester yarn is an ultrafine yarn, a unique powder touch and soft feeling can be obtained, and the PBT used as the high shrinkage polyester yarn exhibits good stretchability, and additionally provides a different color effect, The appearance was rich in surface changes.
【0036】実施例5 高収縮ポリエステル糸側に使用するポリマーを高収縮P
ETから酸化チタンを0.05重量%含み、5−ナトリ
ウムスルホイソフタル酸を全酸成分に対し2.5mol
%共重合した[η]=0.67のカチオン可染性PET
とし、延伸倍率を1.50倍、2HR温度を125℃と
して実施例1と同様に、紡糸、延伸熱処理を行った。得
られた混繊糸の物性を表1に示すが、低収縮ポリエステ
ル糸はBWSが充分低く、DSABも負の値となり優れ
た収縮特性であり、高収縮ポリエステル糸側も充分収縮
率が高く優れた収縮特性であった。また、低収縮ポリエ
ステル糸はU%=4.5%であり、さらに芯部に配した
ポリスチレンが切断され部分的に中空部が形成されてお
り、糸長手方向に数cm〜数10cm程度の太細に加え
て数十μmオーダーの太細、配向斑を有するものとなっ
ていた。これを用いて実施例1と同様に布帛を作製し
た。得られた布帛は繊細なふくらみ感があり、ソフト
感、反発感に優れ、しかも繊細なドライタッチが得られ
優れた風合いであった。また、軽量感、保温性にも優れ
ていた。さらに、三葉断面、内部粒子の効果により美し
いシルク様光沢を有していた。加えて、高収縮ポリエス
テル糸として用いたカチオン可染糸により異色効果が得
られ、表面変化に富んだ外観となった。Example 5 The polymer used for the high shrinkage polyester yarn was a high shrinkage P
ET containing 0.05% by weight of titanium oxide, and 2.5 mol of 5-sodium sulfoisophthalic acid based on all acid components
% Copolymerizable [η] = 0.67 cationic dyeable PET
In the same manner as in Example 1, spinning and drawing heat treatment were performed at a draw ratio of 1.50 and a 2HR temperature of 125 ° C. The physical properties of the obtained mixed yarn are shown in Table 1. The low shrinkage polyester yarn has a sufficiently low BWS and a negative value of DSAB, which is an excellent shrinkage property. Shrinkage properties. The low-shrinkage polyester yarn has a U% of 4.5%, and the polystyrene disposed on the core is cut to form a hollow part, and a thick portion of about several cm to several tens cm in the yarn longitudinal direction. In addition to the fineness, the film had a thickness of several tens of μm and had uneven alignment. Using this, a fabric was produced in the same manner as in Example 1. The resulting fabric had a delicate swelling feeling, was excellent in softness and resilience, and had a delicate dry touch and an excellent texture. Also, it was excellent in lightness and heat retention. Furthermore, it had a beautiful silky luster due to the effect of the trilobular section and internal particles. In addition, the cationic dyeable yarn used as the high shrinkage polyester yarn provided a different color effect, resulting in an appearance rich in surface change.
【0037】実施例6 1HR温度を90℃として実施例1と同様に延伸を行っ
た。得られた混繊糸の物性を表1に示すが、低収縮ポリ
エステル糸はBWSが充分低く、DSABも負の値とな
り優れた収縮特性であり、高収縮ポリエステル糸側も充
分収縮率が高く優れた収縮特性であった。また、低収縮
ポリエステル糸はU%=7.5%であり、さらに芯部に
配したポリスチレンが切断され部分的に中空部が形成さ
れており、糸長手方向に数cm〜数10cm程度の太細
に加えて数十μmオーダーの太細、配向斑を有するもの
となっていた。これを用いて実施例1と同様に布帛を作
製した。得られた布帛は繊細なふくらみ感があり、ソフ
ト感、反発感に優れ、しかも繊細なドライタッチが得ら
れ優れた風合いであった。また、軽量感、保温性にも優
れていた。さらに、三葉断面、内部粒子の効果により美
しいシルク様光沢を有してい。しかし、混繊糸のU%が
2.3%と高いため、布帛表面審美性は実施例1には一
歩譲るものであった。Example 6 Stretching was carried out in the same manner as in Example 1 except that the 1 HR temperature was 90 ° C. The physical properties of the obtained mixed yarn are shown in Table 1. The low shrinkage polyester yarn has a sufficiently low BWS and a negative value of DSAB, which is an excellent shrinkage property. Shrinkage properties. Further, the low-shrinkage polyester yarn has U% = 7.5%, and the polystyrene disposed in the core is cut to form a hollow part, and a thick portion of several cm to several tens cm in the yarn longitudinal direction. In addition to the fineness, the film had a thickness of several tens of μm and had uneven alignment. Using this, a fabric was produced in the same manner as in Example 1. The resulting fabric had a delicate swelling feeling, was excellent in softness and resilience, and had a delicate dry touch and an excellent texture. Also, it was excellent in lightness and heat retention. In addition, it has a beautiful silky luster due to the effect of the trilobal section and internal particles. However, since the U% of the mixed fiber was as high as 2.3%, the aesthetics of the fabric surface was one step further than that of Example 1.
【0038】比較例1 高収縮ポリエステル糸側に使用するポリマーを高収縮P
ETから実施例1で使用したブライトPETとし、延伸
での2HR温度を145℃として実施例1と同様に、紡
糸、延伸熱処理を行った。得られた混繊糸の物性を表1
に示すが、低収縮ポリエステル糸がDSAB>0%であ
り、また高収縮ポリエステル糸の収縮率も低いものであ
った。これを用いて実施例1と同様に布帛を作製した。
得られた布帛はふくらみ感、ソフト感、反発感に劣るも
のであった。Comparative Example 1 The polymer used for the high shrinkage polyester yarn was high shrinkage P
From the ET, the bright PET used in Example 1 was used, and the spinning and drawing heat treatment were performed in the same manner as in Example 1 except that the 2 HR temperature in drawing was 145 ° C. Table 1 shows the physical properties of the obtained mixed fiber.
As shown in the figure, DSAB> 0% for the low shrinkage polyester yarn, and the shrinkage ratio of the high shrinkage polyester yarn was low. Using this, a fabric was produced in the same manner as in Example 1.
The resulting fabric was inferior in swelling, softness and resilience.
【0039】実施例7 ポリマー(A)として[η]=0.63で内部粒子形成
能を有する化合物を含まず、酸化チタンをPETに対し
0.30重量%含むホモPET(セミダルPET)を用
い、ポリマー(B)として旭化成社製ポリスチレンであ
る“スタイロン”685(MFR=2.1)を用いた。
そして、PETを290℃、ポリスチレンを210℃で
それぞれ溶融し、絶対濾過径15μmのステンレス製不
織布フィルター2を用い濾過を行った後、孔数24の丸
孔口金3からポリスチレンを芯部に配した同心円芯鞘複
合糸として紡糸温度290℃で吐出した(図8)。この
時、ポリスチレンの複合比は7重量%であった。そし
て、口金下1.8mでガイド給油装置6により集束給油
した後、インターレースノズル7により交絡を付与し、
紡糸速度を5000m/分として糸条を引き取り、73
dtex、24フィラメントのPOYを巻き取った(図
8)。この時の第1ローラー8および第2ローラー9の
周速は同一とし、これを紡糸速度とした。また、インタ
ーレースノズルへの供給空気圧力は0.30MPaとし
た。Example 7 As the polymer (A), a homo PET (semi-dal PET) containing 0.30% by weight of titanium oxide with respect to PET without [η] = 0.63 and containing no compound capable of forming internal particles was used. As the polymer (B), "Styrone" 685 (MFR = 2.1), which is a polystyrene manufactured by Asahi Kasei Corporation, was used.
Then, PET was melted at 290 ° C. and polystyrene was melted at 210 ° C., and filtration was performed using a stainless steel nonwoven fabric filter 2 having an absolute filtration diameter of 15 μm. The concentric core-sheath composite yarn was discharged at a spinning temperature of 290 ° C. (FIG. 8). At this time, the composite ratio of polystyrene was 7% by weight. Then, after converging and refueling with the guide refueling device 6 1.8 m below the base, confounding is given by the interlace nozzle 7,
The spinning speed is set to 5000 m / min, and the yarn is taken up.
The dtex, 24 filament POY was wound (FIG. 8). At this time, the peripheral speeds of the first roller 8 and the second roller 9 were the same, and this was used as the spinning speed. The supply air pressure to the interlace nozzle was 0.30 MPa.
【0040】このPOYを1対のホットローラーを有す
る延伸機を用いて延伸熱処理をした(図6)。この時、
延伸倍率は1.35倍、第1ホットローラー(1HR)
温度は95℃、第2ホットローラー(2HR)温度は1
28℃、延伸速度950m/分とし、糸条をホットロー
ラーに6回巻き付けた。The POY was subjected to a stretching heat treatment using a stretching machine having a pair of hot rollers (FIG. 6). At this time,
Stretch ratio is 1.35 times, 1st hot roller (1HR)
The temperature is 95 ° C, the second hot roller (2HR) temperature is 1
The yarn was wound six times around a hot roller at 28 ° C. and a stretching speed of 950 m / min.
【0041】得られた低収縮ポリエステル糸の物性を表
3に示すが、BWSが充分低く、DSABも負の値とな
り優れた収縮特性であった。また、低収縮ポリエステル
糸はU%=4.1%であり、さらに芯部に配したポリス
チレンが切断され部分的に中空部が形成されており、糸
長手方向に数cm〜数10cm程度の太細に加えて数十
μmオーダーの太細、配向斑を有するものとなってい
た。この低収縮ポリエステル糸と別途準備した33dt
ex、12フィラメントのBWS+DSAB=15%の
高収縮ホモPET糸とインターレースノズルを用いてエ
ア混繊し、ポリエステル混繊糸を得た。これに撚り係数
4000の弱撚を施し、乾熱80℃にて撚り止めセット
を行った。そして、これを用いて筒編みを作製し、常法
により10重量%のアルカリ減量を施した後、分散染料
で青色に染色を施した。得られた布帛は繊細なふくらみ
感があり、ソフト感、反発感に優れ、しかも繊細なドラ
イタッチが得られ優れた風合いであった。さらに、一見
染色斑の無いように見えるが、よく見ると微妙な色合い
の変化を示す布帛表面審美性に優れたものであった。ま
た、軽量感、保温性にも優れていた。The physical properties of the obtained low-shrinkage polyester yarn are shown in Table 3. As a result, BWS was sufficiently low and DSAB was a negative value, indicating excellent shrinkage characteristics. The low-shrinkage polyester yarn is U% = 4.1%, and the polystyrene disposed in the core is cut to form a hollow part, and a thick portion of about several cm to several tens cm in the yarn longitudinal direction. In addition to the fineness, the film had a thickness of several tens of μm and had uneven alignment. 33 dt separately prepared with this low shrinkage polyester yarn
Ex and 12 filaments of BWS + DSAB = 15% high shrinkage homo PET yarn were mixed with air using an interlace nozzle to obtain a polyester mixed yarn. This was subjected to weak twisting with a twist coefficient of 4000, and a twist-stopping set was performed at a dry heat of 80 ° C. Then, a tubular knitting was prepared using this, and the alkali was reduced by 10% by weight according to a conventional method, and then blue was dyed with a disperse dye. The resulting fabric had a delicate swelling feeling, was excellent in softness and resilience, and had a delicate dry touch and an excellent texture. Furthermore, although it appeared that there was no staining spot at first glance, the fabric surface was excellent in aesthetics showing a slight change in color when viewed closely. Also, it was excellent in lightness and heat retention.
【0042】[0042]
【表3】 [Table 3]
【0043】[0043]
【表4】 [Table 4]
【0044】実施例8 ポリスチレンの複合比を12重量%とし、吐出量を変更
して実施例7同様に紡糸を行い、90dtex、24フ
ィラメントのPOYを巻き取った。このPOYを用い、
延伸倍率を1.65倍として実施例7と同様に延伸を行
った。しかし、許容範囲ではあるが、紡糸、延伸過程で
糸切れが発生した。Example 8 Spinning was carried out in the same manner as in Example 7 except that the composite ratio of polystyrene was 12% by weight and the discharge amount was changed, and a 90 dtex, 24 filament POY was wound up. Using this POY,
Stretching was performed in the same manner as in Example 7, except that the stretching ratio was 1.65 times. However, although within the allowable range, yarn breakage occurred during the spinning and drawing processes.
【0045】得られた低収縮ポリエステル糸の物性を表
3に示すが、BWSが充分低く、DSABも負の値とな
り優れた収縮特性であった。。また、低収縮ポリエステ
ル糸はU%=6.1%であり、さらに芯部に配したポリ
スチレンが切断され部分的に中空部が形成されており、
糸長手方向に数cm〜数10cm程度の太細に加えて数
十μmオーダーの太細、配向斑を有するものとなってい
た。この低収縮ポリエステル糸を用いて実施例7と同様
に高収縮ポリエステル糸と混繊し、ポリエステル混繊糸
を得、撚糸を施した。これを用いて実施例7と同様に筒
編みを作製した。得られた布帛は繊細なふくらみ感があ
り、ソフト感、反発感に優れ、しかも繊細なドライタッ
チが得られ優れた風合いであった。また、軽量感、保温
性にも優れていた。特に軽量感、保温性は実施例7より
優れていた。The physical properties of the obtained low-shrinkage polyester yarn are shown in Table 3. The BWS was sufficiently low, and the DSAB was a negative value, indicating excellent shrinkage characteristics. . Further, the low-shrinkage polyester yarn has U% = 6.1%, and the polystyrene disposed in the core is cut to form a hollow part partially,
In addition to the thickness of several cm to several tens of cm in the longitudinal direction of the yarn, the yarn had a thickness of several tens of μm and unevenness of orientation. Using this low-shrinkage polyester yarn, it was mixed with a high-shrinkage polyester yarn in the same manner as in Example 7, to obtain a polyester mixed yarn, and twisted. Using this, a tubular knit was produced in the same manner as in Example 7. The resulting fabric had a delicate swelling feeling, was excellent in softness and resilience, and had a delicate dry touch and an excellent texture. Also, it was excellent in lightness and heat retention. In particular, lightness and heat retention were superior to those of Example 7.
【0046】実施例9 ポリスチレンの複合比を2重量%とし、吐出量を変更し
て実施例7と同様に紡糸を行い、60dtex、24フ
ィラメントのPOYを巻き取った。このPOYを用い、
延伸倍率を1.05倍として実施例7と同様に延伸を行
った。Example 9 Spinning was performed in the same manner as in Example 7 except that the composite ratio of polystyrene was 2% by weight, and the discharge amount was changed, and a 60 dtex, 24-filament POY was wound up. Using this POY,
Stretching was performed in the same manner as in Example 7 except that the stretching ratio was 1.05.
【0047】得られた低収縮ポリエステル糸の物性を表
3に示すが、BWSが充分低く、DSABも負の値とな
り優れた収縮特性であった。。また、低収縮ポリエステ
ル糸はU%=2.5%であり、さらに芯部に配したポリ
スチレンが切断され部分的に中空部が形成されており、
糸長手方向に数cm〜数10cm程度の太細に加えて数
十μmオーダーの太細、配向斑を有するものとなってい
た。この低収縮ポリエステル糸を用いて実施例7と同様
に高収縮ポリエステル糸と混繊し、ポリエステル混繊糸
を得、撚糸を施した。これを用いて実施例7と同様に筒
編みを作製した。得られた布帛は繊細なふくらみ感があ
り、ソフト感、反発感に優れ、しかも繊細なドライタッ
チが得られ優れた風合いであった。また、軽量感、保温
性にも優れていた。しかし、ふくらみ感、ソフト感、反
発感、軽量感、保温性は実施例7には一歩譲るものであ
った。The physical properties of the obtained low-shrinkage polyester yarn are shown in Table 3. As a result, BWS was sufficiently low and DSAB was a negative value, indicating excellent shrinkage characteristics. . The low-shrinkage polyester yarn has U% = 2.5%, and the polystyrene disposed on the core is cut to form a hollow part,
In addition to the thickness of several cm to several tens of cm in the longitudinal direction of the yarn, the yarn had a thickness of several tens of μm and unevenness of orientation. Using this low-shrinkage polyester yarn, it was mixed with a high-shrinkage polyester yarn in the same manner as in Example 7, to obtain a polyester mixed yarn, and twisted. Using this, a tubular knit was produced in the same manner as in Example 7. The resulting fabric had a delicate swelling feeling, was excellent in softness and resilience, and had a delicate dry touch and an excellent texture. Also, it was excellent in lightness and heat retention. However, swelling, softness, resilience, lightness, and heat retention were one step further than in Example 7.
【0048】実施例10 ポリスチレンを旭化成社製ポリスチレン“スタイロン”
8259(MFR=1.1)とし、吐出量を変更して実
施例7と同様に紡糸を行い、85dtex、24フィラ
メントのPOYを巻き取った。このPOYを用い、延伸
倍率を1.52倍とした以外は実施例1と同様に延伸を
行った。しかし、許容範囲ではあるが、紡糸、延伸過程
で糸切れが発生した。Example 10 Polystyrene "STYRON" manufactured by Asahi Kasei Corporation
Spinning was carried out in the same manner as in Example 7 except that the discharge amount was changed to 8259 (MFR = 1.1), and a 85 dtex, 24 filament POY was wound up. Using this POY, stretching was performed in the same manner as in Example 1 except that the stretching ratio was 1.52 times. However, although within the allowable range, yarn breakage occurred during the spinning and drawing processes.
【0049】得られた低収縮ポリエステル糸の物性を表
3に示すが、BWSが充分低く、DSABも負の値とな
り優れた収縮特性であった。また、芯部に配したポリス
チレンが部分的に切断が実施例7のものよりも進んでお
り、太細斑、配向斑も実施例7のものに比べ程度が大き
くなっていた。この低収縮ポリエステル糸を用いて実施
例7と同様に高収縮ポリエステル糸と混繊し、ポリエス
テル混繊糸を得、撚糸を施した。これを用いて実施例7
と同様に筒編みを作製した。得られた布帛は繊細なふく
らみ感があり、ソフト感、反発感に優れ、しかも繊細な
ドライタッチが得られ優れた風合いであった。また、軽
量感、保温性にも優れていた。特に軽量感、保温性は実
施例7より優れていた。The physical properties of the obtained low-shrinkage polyester yarn are shown in Table 3. As a result, BWS was sufficiently low and DSAB was a negative value, indicating excellent shrinkage characteristics. In addition, the polystyrene disposed on the core part was partially cut more than in Example 7, and the degree of thick and fine spots and alignment unevenness was larger than that of Example 7. Using this low-shrinkage polyester yarn, it was mixed with a high-shrinkage polyester yarn in the same manner as in Example 7, to obtain a polyester mixed yarn, and twisted. Example 7 using this
A tubular knit was prepared in the same manner as described above. The resulting fabric had a delicate swelling feeling, was excellent in softness and resilience, and had a delicate dry touch and an excellent texture. Also, it was excellent in lightness and heat retention. In particular, lightness and heat retention were superior to those of Example 7.
【0050】比較例2 延伸倍率を1.70倍、延伸温度を100℃として実施
例7と同様に延伸を行った。得られた糸の物性を表3に
示すが、U%=1.5%となり、またDSABが正の値
となった。この低収縮ポリエステル糸を、インターレー
スノズル(供給空気圧力0.30MPa)を用いて実施
例7と同様に高収縮ポリエステル糸と混繊し、ポリエス
テル混繊糸を得、撚糸を施した。このポリエステル混繊
糸を用いて実施例7と同様に筒編みを作製した。得られ
た布帛はふくらみ感、ソフト感、反発感に乏しいもので
あった。また、杢感にも乏しいものであった。Comparative Example 2 Stretching was carried out in the same manner as in Example 7 except that the stretching ratio was 1.70 times and the stretching temperature was 100 ° C. The physical properties of the obtained yarn are shown in Table 3, where U% = 1.5% and DSAB was a positive value. This low shrinkage polyester yarn was mixed with a high shrinkage polyester yarn using an interlace nozzle (supply air pressure 0.30 MPa) in the same manner as in Example 7 to obtain a polyester mixed yarn and twisted. Using this polyester mixed yarn, a tubular knit was produced in the same manner as in Example 7. The obtained fabric had poor swelling, softness and resilience. Moreover, the heather feeling was poor.
【0051】比較例3 延伸倍率を1.20として実施例7と同様に延伸を行っ
た。得られた糸の物性を表3に示すが、伸度が過度に大
きくなった。この低収縮ポリエステル糸を用いて比較例
2と同様に高収縮ポリエステル糸と混繊し、ポリエステ
ル混繊糸を得、撚糸を施した。このポリエステル混繊糸
を用いて実施例7と同様に筒編みを作製したが、低収縮
ポリエステルのBWSが過度に低く、また伸度が過度に
高いため糸条表面に低収縮ポリエステル糸がループを作
り、編み工程で糸切れが多発した。Comparative Example 3 Stretching was carried out in the same manner as in Example 7 except that the stretching ratio was 1.20. The physical properties of the obtained yarn are shown in Table 3, and the elongation was excessively large. This low shrinkage polyester yarn was mixed with a high shrinkage polyester yarn in the same manner as in Comparative Example 2 to obtain a polyester mixed yarn and twisted. Using this polyester mixed yarn, a tubular knit was produced in the same manner as in Example 7. However, since the BWS of the low-shrinkage polyester was excessively low and the elongation was excessively high, the low-shrinkage polyester yarn formed a loop on the yarn surface. Many yarn breaks occurred during the making and knitting process.
【0052】比較例4 PETのエステル化反応終了時後に炭素数15のアルキ
ルベンゼンスルホン酸ナトリウムを1重量%加えた、酸
化チタンを0.25重量%含む[η]=0.67のホモ
PETの単独糸を紡糸温度290℃、紡糸速度3000
m/分で紡糸し、62dtex、24フィラメントのP
OYを巻き取った。これを図9の装置を用い、延伸倍率
1.10、0.09cN/dtexの張力下でヒーター
温度120℃、加工速度100m/分の接触熱処理を行
った。得られた繊維の物性を表3に示すが伸度が過度に
高くなった。この低収縮ポリエステル糸を用いて比較例
2と同様に高収縮ポリエステル糸と混繊し、ポリエステ
ル混繊糸を得、撚糸を施した。このポリエステル混繊糸
を用い実施例7と同様に筒編みを作製したが、伸度が過
度に高いため糸条表面に低収縮ポリエステル糸がループ
を作り、編み工程で糸切れが多発した。また、得られた
布帛は反発感、軽量感、保温性に乏しいものであった。
さらに、美しい霜降り調の杢感とはならず、スポット状
の濃染部が点在した汚い布帛表面となった。Comparative Example 4 After completion of the esterification reaction of PET, 1 wt% of sodium alkylbenzenesulfonate having 15 carbon atoms was added, and homo PET containing 0.25 wt% of titanium oxide and [η] = 0.67 alone was used. The yarn is spun at a temperature of 290 ° C. and a spinning speed of 3000.
m / min, spin at 62 dtex, 24 filaments P
The OY was wound up. This was subjected to contact heat treatment at a heater temperature of 120 ° C. and a processing speed of 100 m / min under a tension of 1.10 and a tension of 0.09 cN / dtex using the apparatus of FIG. The physical properties of the obtained fiber are shown in Table 3, but the elongation was excessively high. This low shrinkage polyester yarn was mixed with a high shrinkage polyester yarn in the same manner as in Comparative Example 2 to obtain a polyester mixed yarn and twisted. A tubular knitting was made using this polyester mixed yarn in the same manner as in Example 7, but since the elongation was excessively high, a low-shrinkage polyester yarn formed a loop on the yarn surface, and the yarn was frequently broken during the knitting process. The obtained fabric was poor in resilience, lightness, and heat retention.
Furthermore, it did not have a beautiful marbling-like heather feeling but had a dirty cloth surface dotted with spot-like deeply dyed portions.
【0053】[0053]
【発明の効果】本発明の低収縮ポリエステル糸を採用す
ることにより、工程通過性に優れ、ソフト感、ふくらみ
感、反発感に優れ、さらに軽量性、保温性といった着用
快適性にも優れた高品質の布帛を提供できるものであ
る。The use of the low-shrinkage polyester yarn of the present invention provides high processability, excellent softness, swelling, and resilience, as well as excellent wearing comfort such as lightness and heat retention. It can provide a high quality fabric.
【図1】本発明の低収縮ポリエステル糸の芯部が部分的
に切断されていることを表す図である。FIG. 1 is a view showing that a core portion of a low-shrinkage polyester yarn of the present invention is partially cut.
【図2】本発明の低収縮ポリエステル糸の超微細配向斑
を表す図である。FIG. 2 is a view showing ultra-fine orientation unevenness of the low shrinkage polyester yarn of the present invention.
【図3】給糸速度8m/分、ノーマルモード測定による
U%チャートの一例である。FIG. 3 is an example of a U% chart based on normal mode measurement at a yarn feeding speed of 8 m / min.
【図4】給糸速度200m/分、ハーフモード測定によ
るU%チャートの一例である。FIG. 4 is an example of a U% chart based on half mode measurement at a yarn feeding speed of 200 m / min.
【図5】混繊紡糸、巻き取り装置を表す図である。FIG. 5 is a diagram showing a mixed fiber spinning and winding device.
【図6】延伸装置を表す図である。FIG. 6 is a view showing a stretching device.
【図7】紡糸直接延伸装置を表す図である。FIG. 7 is a diagram illustrating a direct spinning drawing apparatus.
【図8】紡糸、巻き取り装置を表す図である。FIG. 8 is a diagram illustrating a spinning and winding device.
【図9】接触熱処理装置を表す図である。FIG. 9 is a diagram illustrating a contact heat treatment apparatus.
1:スピンブロック 2:不織布フィルター 3:口金 4:チムニー 5a:低収縮ポリエステル糸側糸条 5b:高収縮ポリエステル糸側糸条 6:給油ガイド 7:インターレースノズル 8:第1ローラー 9:第2ローラー 10:巻取糸 11:供給糸 12:フィードローラー 13:第1ホットローラー(1HR) 14:第2ホットローラー(2HR) 15:コールドドローローラー 16:延伸糸 17:第1ホットネルソンローラー(1HNR) 18:第2ホットネルソンローラー(2HNR) 19:巻取糸 20:接触式ヒーター 21:デリバリーローラー 22:熱処理糸 1: spin block 2: non-woven fabric filter 3: base 4: chimney 5a: low shrinkage polyester yarn side yarn 5b: high shrinkage polyester yarn side yarn 6: lubrication guide 7: interlace nozzle 8: first roller 9: second roller 10: Winding yarn 11: Supply yarn 12: Feed roller 13: First hot roller (1HR) 14: Second hot roller (2HR) 15: Cold draw roller 16: Draw yarn 17: First hot Nelson roller (1HNR) 18: Second hot Nelson roller (2HNR) 19: Winding yarn 20: Contact heater 21: Delivery roller 22: Heat treated yarn
フロントページの続き (51)Int.Cl.7 識別記号 FI テーマコート゛(参考) D02G 3/36 D02G 3/36 Fターム(参考) 4L036 MA05 MA15 MA20 MA26 MA39 PA01 PA03 PA26 PA42 RA03 RA14 UA01 UA30 4L041 AA07 AA20 AA22 BA02 BA05 BA21 BA38 BA41 BA52 BB05 BC04 BC05 BC20 CA06 CA12 CA47 CB05 CB06 DD01 DD10 DD14 DD21 4L045 AA05 BA15 BA18 BA25 BA45 CA09 Continued on the front page (51) Int.Cl. 7 Identification symbol FI Theme coat II (reference) D02G 3/36 D02G 3/36 F term (reference) 4L036 MA05 MA15 MA20 MA26 MA39 PA01 PA03 PA26 PA42 RA03 RA14 UA01 UA30 4L041 AA07 AA20 AA22 BA02 BA05 BA21 BA38 BA41 BA52 BB05 BC04 BC05 BC20 CA06 CA12 CA47 CB05 CB06 DD01 DD10 DD14 DD21 4L045 AA05 BA15 BA18 BA25 BA45 CA09
Claims (7)
(A)を鞘部に配し、伸長粘度の温度依存性がポリマ
(A)のそれよりも大きいポリマー(B)を芯部に配し
た芯鞘複合糸であって、糸長手方向に太部と細部を連続
して有し、しかも芯部に配したポリマー(B)が切断さ
れることにより部分的に中空部を有していることを特徴
とする、下記特性を有する低収縮ポリエステル太細糸。 沸騰水収縮率=4〜10% 沸騰水収縮後乾熱収縮率≦0% 沸騰水収縮率+沸騰水収縮後乾熱収縮率≦8% 伸度=60〜100% U%≧2.5%1. A core-sheath in which a polymer (A) which is substantially a polyester is disposed in a sheath, and a polymer (B) in which the temperature dependence of elongational viscosity is larger than that of the polymer (A) is disposed in a core. A composite yarn having a continuous thick part and details in the longitudinal direction of the yarn, and having a hollow part partially by cutting the polymer (B) disposed on the core part. A low-shrink polyester thick yarn having the following characteristics. Boiling water shrinkage = 4-10% Dry heat shrinkage after boiling water shrinkage ≦ 0% Boiling water shrinkage + dry heat shrinkage after boiling water shrinkage ≦ 8% Elongation = 60-100% U% ≧ 2.5%
長さが平均で10〜100μm、中空部の長さが平均で
5〜100μmであることを特徴とする請求項1記載の
低収縮ポリエステル太細糸。2. The polymer according to claim 1, wherein the length of the solid portion of the polymer (B) disposed on the core portion is 10 to 100 μm on average, and the length of the hollow portion is 5 to 100 μm on average. Low shrink polyester thick yarn.
であることを特徴とする請求項1または2記載の低収縮
ポリエステル太細糸。3. The low-shrink polyester thick yarn according to claim 1, wherein the polymer (B) is a polystyrene-based polymer.
化合物を含むことを特徴とする請求項1〜3のいずれか
1項に記載の低収縮ポリエステル太細糸。4. The low-shrink polyester thick yarn according to claim 1, wherein the polymer (A) contains a compound capable of forming internal particles.
ステル太細糸と下記収縮率を有する高収縮ポリエステル
糸からなるポリエステル混繊糸。 沸騰水収縮率+沸騰水収縮後乾熱収縮率≧12%5. A polyester blended yarn comprising the polyester thick yarn according to any one of claims 1 to 4 and a high shrinkage polyester yarn having the following shrinkage ratio. Boiling water shrinkage + Dry heat shrinkage after boiling water shrinkage ≧ 12%
特徴とする請求項5記載のポリエステル混繊糸。6. The polyester mixed fiber yarn according to claim 5, wherein U% of the mixed fiber is 1.5% or less.
請求項5または6記載のポリエステル混繊糸。7. The polyester blended yarn according to claim 5, wherein the degree of entanglement is 20 or less.
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Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2009108439A (en) * | 2007-10-30 | 2009-05-21 | Toray Ind Inc | Method for producing combined filament yarn with elongation difference |
JP2011162888A (en) * | 2010-02-05 | 2011-08-25 | Teijin Fibers Ltd | Polyester blended yarn and polyester fabric |
CN108588870A (en) * | 2018-05-15 | 2018-09-28 | 江南大学 | A kind of bamboo joint structure hollow monofilaments and preparation method thereof |
CN115748049A (en) * | 2023-01-10 | 2023-03-07 | 江苏恒力化纤股份有限公司 | Moisture-conducting yarn and preparation method thereof |
-
2000
- 2000-02-01 JP JP2000024296A patent/JP2001214335A/en active Pending
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2009108439A (en) * | 2007-10-30 | 2009-05-21 | Toray Ind Inc | Method for producing combined filament yarn with elongation difference |
JP2011162888A (en) * | 2010-02-05 | 2011-08-25 | Teijin Fibers Ltd | Polyester blended yarn and polyester fabric |
CN108588870A (en) * | 2018-05-15 | 2018-09-28 | 江南大学 | A kind of bamboo joint structure hollow monofilaments and preparation method thereof |
CN115748049A (en) * | 2023-01-10 | 2023-03-07 | 江苏恒力化纤股份有限公司 | Moisture-conducting yarn and preparation method thereof |
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