JP3464385B2 - Polyester diversity yarn - Google Patents
Polyester diversity yarnInfo
- Publication number
- JP3464385B2 JP3464385B2 JP16065098A JP16065098A JP3464385B2 JP 3464385 B2 JP3464385 B2 JP 3464385B2 JP 16065098 A JP16065098 A JP 16065098A JP 16065098 A JP16065098 A JP 16065098A JP 3464385 B2 JP3464385 B2 JP 3464385B2
- Authority
- JP
- Japan
- Prior art keywords
- yarn
- mixed
- diversity
- draw ratio
- heat
- 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.)
- Ceased
Links
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- Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
Description
【0001】[0001]
【発明の属する技術分野】本発明は、沸水収縮率、破断
伸度(以下、単に“伸度”と略記する)及び自然延伸倍
率の異なる2種以上の中間配向ポリエステルマルチフィ
ラメントからなる多様性混繊糸、及び該糸を出発原糸と
する、延伸された異収縮混繊糸、嵩高糸並びに複合仮撚
糸の製造方法に関する。ここで、“多様性混繊糸”と
は、該糸を出発原糸として、延伸された異収縮混繊糸、
嵩高糸更には複合仮撚糸といった、多様な製品を与える
ような混繊糸を意味する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a multi-mixture composed of two or more intermediate oriented polyester multifilaments having different boiling water shrinkage, breaking elongation (hereinafter simply referred to as "elongation") and natural draw ratio. The present invention relates to a yarn, and a method for producing a stretched heterogeneous-shrink mixed yarn, a bulky yarn, and a composite false-twisted yarn using the yarn as a starting raw yarn. Here, the “diversity mixed fiber” means a stretched different shrinkage mixed fiber, which is the starting raw yarn.
It means a mixed yarn that gives various products such as bulky yarn and composite false twisted yarn.
【0002】[0002]
【従来の技術】従来より膨らみ感とソフト感に富む織編
物を得る手段として、高収縮性ポリエステルマルチフィ
ラメントと低収縮性ポリエステルマルチフィラメントと
を組み合わせた混繊糸を配した織編物を染色仕上げ等の
後工程で弛緩熱処理することにより、その収縮差に起因
する糸足差を発現させて膨らみ感、ソフト感を表現させ
ることが知られている。2. Description of the Related Art Conventionally, as a means for obtaining a woven or knitted fabric rich in swelling and softness, a woven or knitted fabric in which a mixed yarn composed of a high shrinkage polyester multifilament and a low shrinkage polyester multifilament is arranged It is known that a relaxation heat treatment is performed in a subsequent step to cause a difference in the length of the leg due to the difference in the contraction to express a bulging feeling and a soft feeling.
【0003】そして、昨今は上記の糸足差の拡大を意図
して、低収縮成分として、自発伸長するポリエステルマ
ルチフィラメントを用いることが特開平1‐25042
5号公報、特開平1‐250433号公報において提案
されている。In recent years, it has been proposed to use a polyester multifilament that spontaneously extends as a low shrinkage component, with the intention of increasing the above-mentioned difference in yarn length.
No. 5 and Japanese Patent Application Laid-Open No. 1-250433.
【0004】更に、特開平8‐325878号公報で
は、弛緩熱処理を施すことによって自発伸長性が付与さ
れるポリエステルマルチフィラメント、具体的にはポリ
エステルの中間配向糸と、高収縮性ポリエステルマルチ
フィラメント、具体的にはポリエステルの延伸糸とを引
き揃え、オーバーフィード下にインターレースノズルに
供給して混繊した後、弛緩熱処理して該中間配向糸に自
発伸長性を付与してから熱固定することも提案されてい
る。この方法によると、極めて膨らみ感のある織物が得
られる。Further, in Japanese Patent Application Laid-Open No. 8-325878, a polyester multifilament to which spontaneous elongation is imparted by performing a relaxation heat treatment, specifically, a polyester intermediate oriented yarn and a highly shrinkable polyester multifilament, specifically, In particular, it is also proposed that the stretched yarn of polyester is aligned, supplied to an interlace nozzle under overfeed and mixed, and then subjected to relaxation heat treatment to impart spontaneous elongation to the intermediate oriented yarn and then heat-fixing. Has been done. According to this method, a fabric having an extremely bulging feeling can be obtained.
【0005】しかし、これらの提案で採用されている高
収縮糸は全て延伸糸であることから、事前に延伸工程が
前提となり、更に、該インターレース処理後は自発伸長
性を付与する為の弛緩熱処理を必要とし、結局の2つの
別工程が不可欠となる。もし、いづれか一つの工程で同
様の混繊糸が得られれば、設備スペース、コストの面で
の工業的優位性は計り知れないものがある。However, since all of the high shrinkage yarns used in these proposals are drawn yarns, a drawing process is premised, and after the interlacing treatment, a relaxation heat treatment for imparting spontaneous elongation is performed. Is required, and the two separate processes are indispensable after all. If the same mixed yarn can be obtained in any one of the steps, industrial advantages in terms of equipment space and cost are immeasurable.
【0006】[0006]
【発明が解決しようとする課題】本発明の課題は、風合
的に従来のものと遜色のない異収縮混繊糸、嵩高糸及び
複合仮撚糸等の原糸(多様性混繊糸)を、より簡略化さ
れた工程で提供することにある。SUMMARY OF THE INVENTION An object of the present invention is to provide raw yarns (diversity mixed yarns) such as heterogeneous shrinkage mixed yarns, bulky yarns and composite false-twisted yarns that are comparable in texture to conventional ones. , In a more simplified process.
【0007】[0007]
【課題を解決するための手段】本発明者らは、上記課題
を解決するため種々検討を重ねた結果、紡出時に配向結
晶抑制剤を添加されたポリエステルの中間配向糸は事後
の熱延伸・熱固定処理の一工程に供するだけで自発伸長
性が付与される、という従来の概念からは予測され難い
事象を究明した。Means for Solving the Problems The inventors of the present invention have conducted various studies to solve the above problems, and as a result, the intermediate oriented yarn of polyester to which an oriented crystal inhibitor has been added at the time of spinning is subjected to hot drawing We have identified a phenomenon that is difficult to predict from the conventional concept that spontaneous elongation is imparted only by subjecting it to one step of heat setting treatment.
【0008】そして、該中間配向糸は、該配向結晶抑制
剤を含まない(あるいは含有量が少ない)が、実質的に
同じ紡糸速度で紡出された中間配向糸に比べて、より高
い伸度及び/又は自然延伸倍率、並びにより低い沸水収
縮率を示すという特性を利用することにより、以下の多
様性混繊糸を得るに至ったのである。The intermediate oriented yarn does not contain the oriented crystal inhibitor (or has a small content), but has a higher elongation than the intermediate oriented yarn spun at substantially the same spinning speed. By utilizing the characteristics that the natural draw ratio and / or the natural draw ratio and the lower boiling water shrinkage rate are utilized, the following diverse mixed yarns have been obtained.
【0009】かくして、本発明によれば、2種以上のポ
リエステルマルチフィラメントから構成された混繊糸に
おいて、両方のフィラメントは共に中間配向糸であり、
その際一方のフィラメント(FY−A)は紡出糸の配向
結晶抑制剤を含み、そして他方のフィラメント(FY−
B)に比べて沸水収縮率は低いが伸度又は自然延伸倍率
が大きいことを特徴とする多様性混繊糸が提供される。Thus, according to the present invention, in a mixed yarn composed of two or more types of polyester multifilaments, both filaments are intermediate oriented yarns,
Here, one filament (FY-A) contains the oriented crystal inhibitor of the spun yarn and the other filament (FY-A).
A versatile mixed yarn is provided which has a lower boiling water shrinkage than B) but a high elongation or natural draw ratio.
【0010】上記の構成を有する多様性混繊糸の意味
は、事後の加工により異収縮混繊糸、嵩高糸更には複合
仮撚糸といった、種々の製品を与える。以下、この点に
ついて述べる。The meaning of the versatile mixed yarn having the above-mentioned structure is to give various products such as a different shrinkage mixed yarn, a bulky yarn and a composite false twisted yarn by post-processing. This point will be described below.
【0011】(a)異収縮混繊糸
上記の多様性混繊糸を熱延伸・熱固定に付するとき、配
向結晶抑制剤を含むFY−Aは自発伸長性を付与され、
他方FY−Bは自発伸長性を付与されることなく、熱的
に高収縮性の延伸糸となる。従って、従来のように、延
伸工程と弛緩熱処理工程の2工程を必要とせず、延伸・
熱固定工程のみで従来同様の異収縮混繊糸が得られる。(A) Heterogeneous Shrinkage Mixed Fiber When the above-mentioned diversity mixed yarn is subjected to hot drawing and heat setting, FY-A containing an oriented crystal inhibitor is given spontaneous elongation,
On the other hand, FY-B is a stretched yarn that is thermally highly shrinkable without being imparted with spontaneous stretchability. Therefore, unlike the conventional method, there is no need for the two steps of stretching and relaxation heat treatment,
The same heterogeneous shrinkage mixed yarn can be obtained only by the heat setting step.
【0012】(b)嵩高糸
この嵩高糸は特公昭63−16494号公報に示された
類のものである。本発明では、上記公報の開示に従っ
て、多様性混繊糸を、FY−Aの自然延伸倍率(NDR−
A)以下で且つFY−Bの自然延伸率(NDR−B)を超
える延伸倍率で延伸し、引き続き弛緩状態におく。この
工程で、延伸時の延伸応力は、FY−Aに比べてFY−
Bに強く掛かっている。次に、延伸後の糸を弛緩状態に
おくと、FY−AとFY−Bとでは弾性回復量が異な
り、後者は前者に比べてより多く縮みむので FY−B
が比較的芯部に位置し、FY−Aがその周りにループ状
に位置した嵩高構造が生じる。(B) Bulky yarn This bulky yarn is of the type disclosed in JP-B-63-16494. In the present invention, in accordance with the disclosure of the above-mentioned publication, the diversity blended yarn is treated with a natural draw ratio (NDR-
Stretching is carried out at a stretching ratio of A) or less and exceeding the natural stretching ratio (NDR-B) of FY-B, and subsequently kept in a relaxed state. In this step, the stretching stress at the time of stretching is FY- as compared with FY-A.
It strongly hangs on B. Next, when the stretched yarn is placed in a relaxed state, FY-A and FY-B have different elastic recovery amounts, and the latter shrinks more than the former.
Is relatively located in the core portion, and a bulky structure in which FY-A is located in a loop shape around it is generated.
【0013】従来、この種の異収縮混繊糸や嵩高糸を得
るに際しては、異なる紡糸速度で、沸水収縮率やNDR
の異なる原糸を別々に用意し、それらを更に交絡手段な
どで合糸してから、弛緩熱処理や延伸・弛緩処理工程に
付していたわけであるが、本発明は、そのような合糸が
コスパン(Co−spun)方法、紡糸引揃方法等のワ
ン・ステップ(One−step)法で得られる。勿
論、両糸を、紡糸引取時には別々に巻取リ、事後の加工
工程で合糸混繊してもよい。Conventionally, when obtaining this kind of heterogeneous shrinkage mixed yarn or bulky yarn, boiling water shrinkage ratio and NDR are different at different spinning speeds.
Different raw yarns of different types were prepared separately, and they were further combined by a entanglement means, and then subjected to a relaxation heat treatment and a stretching / relaxation treatment step. It can be obtained by a one-step method such as a Co-spun method or a spinning alignment method. Of course, both yarns may be separately wound at the time of take-up of the spun yarn, and mixed yarns may be mixed in the post-processing step.
【0014】(c)複合仮撚糸
この複合仮撚糸は特公昭61−19733号、同61−
19737号公報に示された芯−鞘構造のものである。
本発明では、上記公報の開示に従って、多様性混繊糸
を、好ましくは同時延伸・仮撚工程に付する。このと
き、FY−Aに比べて自然延伸倍率(NDR)の低い、従
って伸度の低いFY−Bを芯部として、その周りにFY
−Aが絡み付いた(典型的には、交互撚糸状に巻き付い
た)複合構造が得られる。(C) Composite false-twisted yarn This composite false-twisted yarn is disclosed in Japanese Examined Patent Publication Nos. 61-19733 and 61-61.
It has a core-sheath structure disclosed in Japanese Patent No. 19737.
In the present invention, according to the disclosure of the above publication, the multi-component mixed yarn is preferably subjected to the simultaneous drawing and false twisting process. At this time, as compared with FY-A, FY-B having a lower natural stretch ratio (NDR), and thus lower elongation, is used as a core portion, and FY is surrounded by it.
A composite structure is obtained in which the -A is entangled (typically wrapped in alternating strands).
【0015】従来、この種の複合仮撚糸を得るに際して
は、異なる紡糸速度で、別々に伸度の異なる原糸を用意
し、それらを更に交絡手段などで合糸してから同時延伸
・仮撚工程に付していたわけであるが、本発明では、そ
のような合糸がコスパン(Co−spun)方法、紡糸
引揃方法のワン・ステップ(One−step)法で得
られる。勿論、両糸を、紡糸引取時には別々に巻取リ、
事後の加工工程で合糸混繊してもよいのは、上記の
(a)や(b)の場合と同じである。Conventionally, when obtaining a composite false-twisted yarn of this kind, raw yarns having different elongations are prepared at different spinning speeds, and the yarns are further combined by entanglement means and then simultaneously drawn and false-twisted. In the present invention, such a compound yarn is obtained by a one-step method such as a co-spun method and a spinning and aligning method. Of course, both yarns are separately wound at the time of take-up of the spinning,
As in the case of (a) or (b), the mixed yarn may be mixed in the subsequent processing step.
【0016】更に本発明を詳細に説明する。本発明でい
うポリエステルとは、エチレンテレフタレートを主たる
繰り返し単位とするポリエステルを対象とするが、その
染色性、抗ピル性、熱収縮特性等を改善するために、少
量(通常、15モル%以下、好ましくは10モル%以
下)の第3成分を共重合したものであってもよい。ま
た、必要に応じてその他のポリマーを少量(通常、ポリ
エステルに対して10重量%以下)混合してもよい。更
に、静電剤、艶消剤、紫外線吸収剤、染色性改善剤の添
加剤を配合したものであってもよい。The present invention will be further described in detail. The polyester referred to in the present invention is a polyester having ethylene terephthalate as a main repeating unit, but in order to improve its dyeability, anti-pill property, heat shrinkage property, etc., a small amount (usually 15 mol% or less, It may be a copolymer of a third component (preferably 10 mol% or less). If necessary, other polymers may be mixed in a small amount (usually 10% by weight or less based on the polyester). Further, an additive such as an electrostatic agent, a matting agent, an ultraviolet absorber and a dyeability improving agent may be blended.
【0017】又、本発明でいう中間配向糸とは2000
〜5000m/分、好ましくは2500〜4500m/
分の紡糸引取速度の下に得られた紡出糸を意味する。The intermediate orientation yarn referred to in the present invention is 2000.
~ 5000 m / min, preferably 2500-4500 m / min
Mean spun yarn obtained under a spin-off speed of minutes.
【0018】一方、本発明でいう“紡糸時の配向結晶抑
制剤”とは、ポリメタクレート(メタクリル)またはそ
の誘導体、ポリアクリレートまたはその誘導体、ポリ
(4‐メチル‐1‐ペンテン)、ポリオクタデイセン‐
1またはポリビニルベンジルまたはその誘導体等が例示
される。その中でも、特にポリメチルメタクリレートあ
るいはポリ(4‐メチル‐1‐ペンテン)は好ましい例
である。On the other hand, the term "oriented crystal inhibitor during spinning" as used in the present invention means polymethacrylate (methacryl) or a derivative thereof, polyacrylate or a derivative thereof, poly (4-methyl-1-pentene), polyocta. Daisen-
1 or polyvinyl benzyl or its derivative etc. are illustrated. Among them, polymethylmethacrylate or poly (4-methyl-1-pentene) is a preferable example.
【0019】上述の配向結晶抑制剤は一種の重合体であ
り、平均分子量が1000以上であることが好ましい。
分子量が1000以上のプレポリマーまたはポリマーの
場合には未延伸糸の伸度を高める効果が認められるが、
分子量1000未満の場合には、ポリエステルの分子運
動に変化を与えるだけの作用が出ない為、紡出糸の伸度
を高める効果があまりない。理想的にはスチレンモノマ
ー換算で数平均分子量が2万〜4万程度であることが望
ましい。その例として「クラペットSH−N」(クラレ)
がある。The above-described oriented crystal inhibitor is a kind of polymer, and preferably has an average molecular weight of 1,000 or more.
In the case of a prepolymer or polymer having a molecular weight of 1000 or more, the effect of increasing the elongation of the undrawn yarn is recognized,
When the molecular weight is less than 1000, the effect of increasing the elongation of the spun yarn is not so great because the effect of changing the molecular motion of polyester is not exerted. Ideally, the number average molecular weight in terms of styrene monomer is preferably about 20,000 to 40,000. As an example, "Kurapet SH-N" (Kuraray)
There is.
【0020】これらの配向結晶抑制剤はポリエステルの
紡糸に先立ち、ポリマーに添加されるが、その際の添加
量はポリマーに対して0.5〜5.0重量%の範囲にあ
ることが好ましい。0.5重量%未満では所望の伸度向
上効果が得られず、一方5%を超える場合は、紡糸工程
において糸切れ、引取ローラ巻付きが多発して紡糸調子
が悪くなり、又得られる糸の強伸度等の力学諸特性も低
下する。添加方法はチップブレンダーによる方法、また
は予めポリマーと配向結晶抑制剤とでマスターチップ化
後添加してもよい。These oriented crystal inhibitors are added to the polymer before spinning the polyester, and the amount of addition is preferably 0.5 to 5.0% by weight based on the polymer. If it is less than 0.5% by weight, the desired elongation improving effect cannot be obtained. On the other hand, if it exceeds 5%, yarn breakage and winding on the take-up roller frequently occur in the spinning process, resulting in poor spinning condition. The mechanical properties such as strength and elongation of the steel also deteriorate. The addition method may be a method using a chip blender, or a polymer and an oriented crystallization inhibitor may be added in advance after forming a master chip.
【0021】本発明の多様性混繊糸は、コスパン法又は
紡糸引揃法によって有利に得ることができる。コスパン
法を利用する場合は、同一の口金内で、配向結晶抑制剤
を含むポリマ−と該剤を実質的に含まないポリマーを別
々の吐出(ノズル)孔から吐出させればよい。一方、紡
糸引揃法にあっては、配向結晶抑制剤を含むポリマ−と
該剤を実質的に含まないポリマーを別々の口金から吐出
させ冷却固化後、両吐出糸をインターレ−スのような合
糸手段で混繊してから巻き取ればよい。勿論、後述する
図1の態様のように、配向結晶抑制剤を含むポリマ−と
該剤を実質的に含まないポリマーを別々の口金から吐出
させ冷却固化後、更に別々のパッケージに巻取り、事後
の加工前にインターレ−スのような合糸手段で混繊して
多様性混繊糸としてもよい。The versatile mixed yarn of the present invention can be advantageously obtained by the cospan method or the spinning alignment method. When the Cospan method is used, a polymer containing an oriented crystal inhibitor and a polymer substantially free of the agent may be discharged from separate discharge (nozzle) holes in the same die. On the other hand, in the spinning alignment method, a polymer containing an oriented crystal inhibitor and a polymer containing substantially no such agent are discharged from different spinnerets, cooled and solidified, and then both discharged yarns are interlaced. It may be wound after being mixed with a yarn mixing means. Of course, as shown in the embodiment of FIG. 1 described later, a polymer containing an oriented crystal inhibitor and a polymer substantially free of the agent are discharged from different spinners, cooled and solidified, and further wound into separate packages, and after that Before processing, the fibers may be mixed by a compounding means such as an interlace to form a diversity mixed fiber.
【0022】この多様性混繊糸を既に述べた、延伸され
た異収縮混繊糸の製造のために利用するときには、配向
結晶抑制剤を実質的に含まないポリマーとして、イソフ
タール酸、ビスフェノールAを骨格とするジオール成分
を共重合して熱収縮性を高めた共重合ポリマーを用いる
のが好ましい。When this multi-purpose mixed yarn is used for producing the stretched heterogeneous shrinkage mixed yarn, isophthalic acid and bisphenol A are used as the polymer substantially free of the oriented crystal inhibitor. It is preferable to use a copolymerized polymer in which a diol component as a skeleton is copolymerized to improve heat shrinkability.
【0023】このようにして得られる多様性混繊糸にあ
って、特徴的なことはFY−Aの物性であり、その伸度
が200〜370%、にあり、FY−Bのそれより少な
くとも50%以上高いことである。又、熱特性的には、
FY−Bの沸水収縮率(BWS)が45〜65%になる
のに対して、FY−Aのそれは5%以上低くなることで
ある。In the diversity mixed yarn obtained in this way, the characteristic features are the physical properties of FY-A, the elongation of which is 200 to 370%, and at least that of FY-B. It is higher than 50%. In terms of thermal characteristics,
The boiling water shrinkage rate (BWS) of FY-B is 45 to 65%, whereas that of FY-A is 5% or more lower.
【0024】次に、この多様性混繊糸を利用して、
(a)延伸された異収縮混繊糸、(b)延伸された嵩高
糸、及び(c)複合仮撚糸を得る工程について説明する
(a)延伸された異収縮混繊糸の例
図1は、異収縮混繊糸を得るための装置の一例を示す概
略正面図である。熱延伸・熱固定を施すことによって自
発伸長性を付与されるFY−Aと、該FY−Aより熱収
縮率の大きいFY−Bを夫々のパッケージから解除して
引き揃え、供給ロール1と第1引取ロール2との間に設
けたインターレースノズル3により、オーバーフィード
下に交絡させ、多様性混繊糸とする。Next, utilizing this multi-purpose mixed yarn,
(A) An example of stretched hetero-shrink mixed yarn, (b) Stretched bulky yarn, and (c) Composite false-twisted yarn will be described. FIG. 3 is a schematic front view showing an example of an apparatus for obtaining a different shrinkage mixed fiber. FY-A, which is given spontaneous elongation by heat stretching and heat setting, and FY-B, which has a larger heat shrinkage ratio than FY-A, are released from their respective packages and aligned to form the supply roll 1 and the first roll. The interlaced nozzle 3 provided between the No. 1 take-up roll 2 and the take-up roll 2 is entangled under the overfeed to form a diversity mixed yarn.
【0025】ここで、インターレース処理は両糸を均一
に混繊するためのものである。この場合、オーバーフィ
ード率を1.0〜1.5%とするのが好ましい。また、
空気噴射ノズルとしては一般に用いられているインター
レース加工用圧空式ノズルが好適で、これとは別にタス
ラン加工ノズルも適用できる。Here, the interlace treatment is for uniformly mixing both yarns. In this case, it is preferable that the overfeed rate is 1.0 to 1.5%. Also,
As the air injection nozzle, a commonly used pressure air type nozzle for interlace processing is suitable, and a Taslan processing nozzle can also be applied separately.
【0026】又、必要に応じてインターレース処理後の
多様性混繊糸は一旦巻き取ってもよいが、通常は図示し
たように、引き続き熱延伸・熱固定処理に付するのが有
利である。If desired, the multifilamentary mixed yarn after the interlace treatment may be wound up once, but it is usually advantageous to subsequently subject it to a heat drawing / heat setting treatment as shown in the drawing.
【0027】この場合、第1引取ロール2、第2引取ロ
ール(延伸ロール)4は共に加熱されており、その間で
多様性混繊糸は熱延伸・熱固定の処理を一工程で受け
る。つまり、第1引取ロール2は延伸時の予備加熱ロー
ルとして機能し、第2引取ロール4は延伸ロール及び熱
固定ロールとして機能する。熱延伸・熱固定後の多様性
混繊糸はパッケージ6に巻取られる。巻取り方法として
は、パーン型でもレゾナー型延伸機(段差ローラによる
延伸機)によるチーズ巻き等任意である。In this case, the first take-up roll 2 and the second take-up roll (drawing roll) 4 are both heated, during which the multi-component mixed yarn undergoes heat drawing and heat setting in one step. That is, the first take-up roll 2 functions as a preheating roll during stretching, and the second take-up roll 4 functions as a stretching roll and a heat setting roll. The multi-component mixed yarn after hot drawing and heat setting is wound into the package 6. As a winding method, a cheese winding method using a pan type or a resonance type stretching machine (stretching machine using step rollers) may be used.
【0028】この態様において、熱延伸条件は、主に延
伸倍率、第1引取ロール2と第2引取ロール4の夫々の
加熱温度、及び両ロール間の周速差に依存する。つま
り、FY−AとFY−Bとの混合比率(重量%)、フィ
ラメントデニール、ヤーンデニール、更にはFY−Aと
して、どのような糸を用いるかによって変ってくる。In this embodiment, the hot drawing conditions mainly depend on the draw ratio, the heating temperature of each of the first take-up roll 2 and the second take-up roll 4, and the peripheral speed difference between both rolls. That is, it varies depending on the mixing ratio (% by weight) of FY-A and FY-B, filament denier, yarn denier, and further, what kind of yarn is used as FY-A.
【0029】例えばFY−Aとして、配向結晶抑制剤と
してメタクリル樹脂をポリマーに対して1.5重量%含
有させ、3000m/分〜3500m/分の紡糸引取速
度で得た中間配向糸と、FY−Bとして、イソフタル酸
共重合ポリエステル等の熱収縮性ポリマーを3000m
/分〜3500m/分の紡糸速度で得た中間配向糸とを
混合比率50/50(重量%)で、且つ延伸後のヤーン
デニールを100デニールに設定した場合、第1引取ロ
ール(加熱ロール)2の温度を80℃、第2引取ロール
4の温度を110℃、延伸倍率1.75倍、延伸速度5
00〜600m/分とすればよい。その結果、得られた
異収縮混繊糸全体としての沸水収縮率は通常5〜18%
程度になる。熱固定手段としては、図示した非接触プレ
ートヒーター5の他に、接触プレートヒーター、加熱し
た巻取ロールなど、いづれを用いてもよいが、特に加熱
した第2引取ロール4による熱固定方式が工程簡略化の
点から好ましい。For example, as FY-A, a methacrylic resin as an oriented crystal inhibitor is contained in an amount of 1.5% by weight based on the polymer, an intermediate oriented yarn obtained at a spinning take-up speed of 3000 m / min to 3500 m / min, and FY-A. As B, a heat-shrinkable polymer such as isophthalic acid copolyester is 3000 m
The first take-up roll (heating roll) when the yarn denier after drawing is set to 100 denier with a mixing ratio of 50/50 (% by weight) with the intermediate oriented yarn obtained at a spinning speed of 1 / min to 3500 m / min. The temperature of No. 2 is 80 ° C., the temperature of the second take-up roll 4 is 110 ° C., the draw ratio is 1.75 times, and the draw speed is 5.
It may be set to 00 to 600 m / min. As a result, the boiling water shrinkage ratio of the obtained heterogeneous mixed fiber yarn is usually 5 to 18%.
It will be about. As the heat fixing means, in addition to the illustrated non-contact plate heater 5, any one of a contact plate heater, a heated winding roll and the like may be used, but the heat fixing method using the heated second take-up roll 4 is particularly used. It is preferable in terms of simplification.
【0030】以上の工程により製造された異収縮混繊糸
は糸状又は布帛の状態で弛緩熱処理される時、FY−A
から得られる自発伸長性フィラメント群が相対的に混繊
糸の外側に位置し、FY−Bから得られる熱収縮性ポリ
エステルフィラメント群が相対的に混繊糸の内側に位置
するようになる。従って、その風合いを改善する意味
で、FY−Aのフィラメントデニールを2〜8de、F
Y−Bのそれを3〜10deとし、且つ前者が後者より
も小さくなるように調節するのが好ましい。また、FY
−AとFY−Bとの混繊比率は、深色、ふくらみという
観点から、重量比で8:2〜5:5の範囲にあることが
好ましい。The heterogeneous shrinkage mixed yarn produced by the above steps is subjected to relaxation heat treatment in the form of a thread or a fabric, and FY-A.
The group of spontaneously extensible filaments obtained from No. 1 is relatively located outside the mixed yarn, and the group of heat-shrinkable polyester filaments obtained from FY-B is relatively located inside each mixed yarn. Therefore, in order to improve the texture, the filament denier of FY-A is set to 2 to 8 de, F
It is preferable to adjust that of Y-B to 3 to 10 de, and to adjust the former to be smaller than the latter. Also, FY
From the viewpoint of deep color and bulge, the mixed fiber ratio of -A and FY-B is preferably in the range of 8: 2 to 5: 5 by weight.
【0031】一方、図2は、コスパン又は紡糸引揃法で
得た多様性混繊糸を直接パッケージから解除し、図1の
場合と同様に熱延伸・熱固定する態様を示す。On the other hand, FIG. 2 shows a mode in which the multi-component mixed yarn obtained by cospan or the spinning and aligning method is directly released from the package and hot-drawn and heat-set as in the case of FIG.
【0032】従来、異収縮混繊糸中の高熱収縮性フィラ
メントとしては、1400m/分前後の紡糸引取速度で
得た未延伸糸を延伸倍率3〜4の下に延伸してなる、沸
水収縮率が8.0%以上好ましくは、沸水収縮率が10
〜18%の延伸糸が用いられてきた。Conventionally, as the high heat-shrinkable filament in the different shrinkage mixed yarn, the boiling water shrinkage ratio is obtained by drawing the undrawn yarn obtained at the spinning take-up speed of about 1400 m / min under the draw ratio of 3 to 4. Is 8.0% or more, and preferably, the boiling water shrinkage is 10.
~ 18% drawn yarn has been used.
【0033】これに対して、本発明では該フィラメント
は、例えばイソフタル酸及び/又はビスフェノールAを
骨格とするジオール成分を共重合した熱収縮性のポリエ
ステルポリマーを、例えば3300m/分程度で紡糸
後、これをDR=1.75程度の低倍率で熱延伸・熱固
定することで従来同様の延伸糸が得られる。On the other hand, in the present invention, the filament is, for example, after spinning a heat-shrinkable polyester polymer obtained by copolymerizing a diol component having isophthalic acid and / or bisphenol A as a skeleton at about 3300 m / min, A drawn yarn similar to the conventional one can be obtained by hot-drawing and heat-setting this at a low draw ratio of DR = 1.75.
【0034】従来の異収縮混繊糸の原糸は、収縮差の異
なる2種の糸を、それぞれ別工程(一方の糸は中間配向
糸を得る為の高速紡糸工程、他方の糸は低速紡出糸を更
に延伸する工程)で原糸を作り、両糸を混繊後、弛緩熱
処理していた。The original yarn of the conventional different-shrinkage mixed-fiber yarn is produced by using two types of yarns having different shrinkage differences in different processes (one yarn is a high-speed spinning process for obtaining an intermediate oriented yarn, and the other yarn is a low-speed spinning process). A raw yarn was made in a process of further drawing the discharged yarn, and both yarns were mixed and then subjected to a relaxation heat treatment.
【0035】これに対して、本発明では2種の糸を実質
的に同一紡糸速度工程得ることができ、且つ混繊後の両
糸を延伸・熱固定するだけでよいので、コスパン法や紡
糸引揃法で原糸を得ることが出来、しかも事後の処理工
程では、従来の延伸と弛緩熱処理の2工程を、延伸熱セ
ットの1工程に省略される。On the other hand, in the present invention, two kinds of yarns can be obtained by substantially the same spinning speed process, and both yarns after the mixing are only drawn and heat-fixed. The raw yarn can be obtained by the aligning method, and in the subsequent processing step, the conventional two steps of stretching and relaxation heat treatment are omitted in one step of the drawing heat setting.
【0036】(b)嵩高糸
この嵩高糸は、基本的に図1又は図2に示した工程を利
用して得ることができる。この場合は、延伸倍率の設定
が重要になる。既に述べたように、多様性混繊糸を、第
1引取ロール2と第2引取ロール4との間の延伸倍率を
FY−Aの自然延伸倍率(NDR−A)以下で且つFY−
Bの自然延伸率(NDR−B)を超える延伸倍率で延伸す
る。この間の延伸応力は、FY−Aに比べてFY−Bに
強く掛かっている。次に、糸条を第2引取ロール4以降
で弛緩状態におく。このためには第2引き取りロール4
の下流に更に該ロールよりも低い周速度で回転するロー
ルを設置し、これらロール間で延伸糸を弛緩状態に置け
ばよい。この弛緩領域では、先の糸条に掛かっていた延
伸応力が急激に解放される。その結果、 FY−AとF
Y−Bとでは弾性回復量が異なり、且つ後者は前者に比
べてより多く縮むので、FY−Bが比較的芯部に位置
し、FY−Aがその周りにループ状に位置した嵩高構造
が生じる。(B) Bulky yarn This bulky yarn can be basically obtained by utilizing the process shown in FIG. 1 or 2. In this case, the setting of the draw ratio is important. As described above, the diversity blended yarn has a draw ratio between the first take-up roll 2 and the second take-up roll 4 which is equal to or less than the natural draw ratio (NDR-A) of FY-A and is FY-.
Stretching is carried out at a stretch ratio exceeding the natural stretching ratio of B (NDR-B). The stretching stress during this period is stronger on FY-B than on FY-A. Next, the yarn is placed in a relaxed state after the second take-up roll 4. For this purpose, the second take-up roll 4
Further, a roll that rotates at a lower peripheral speed than the roll may be installed downstream of the roll, and the drawn yarn may be placed in a relaxed state between these rolls. In this relaxation region, the stretching stress applied to the previous yarn is rapidly released. As a result, FY-A and F
Since the elastic recovery amount differs from Y-B and the latter shrinks more than the former, FY-B is located relatively in the core part, and FY-A has a bulky structure in which it is located in a loop shape around it. Occurs.
【0037】(c)複合仮撚糸の例
図3は、複合仮撚糸を得るための装置の一例を示す概略
正面図である。同時延伸・仮撚加工を施すことによっ
て、得られる複合仮撚糸の鞘部を構成するFY−Aと、
同仮撚糸の芯部を構成するFY−Bを夫々のパッケージ
から解除してから引揃え、インターレースノズル3によ
り、数%のオーバーフィード下に交絡させ、多様性混繊
糸とする。(C) Example of composite false-twisted yarn FIG. 3 is a schematic front view showing an example of an apparatus for obtaining the composite false-twisted yarn. FY-A that constitutes the sheath portion of the composite false twisted yarn obtained by performing simultaneous drawing and false twisting,
The FY-B constituting the core portion of the false twisted yarn is released from the respective packages, aligned, and entangled by the interlace nozzle 3 under overfeed of several% to obtain a diversity mixed yarn.
【0038】次いで、該混繊糸は供給ロール7を経て仮
撚具9により付与された仮撚をヒーター8で熱固定さ
れ、仮撚具9以降で解撚された後、引取ロール10によ
り複合仮撚糸として引き取られる。該ロールを出た複合
仮撚糸はそのまま巻き取ってもよいが、図示するよう
に、2次ヒーター11で弛緩熱処理して、トルクが低減
された複合仮撚糸として巻き取ってもよい。Next, the mixed yarn is passed through the supply roll 7 and the false twist applied by the false twisting tool 9 is heat-fixed by the heater 8, untwisted by the false twisting tool 9 and thereafter, and then combined by the take-up roll 10. Taken up as false twisted yarn. The composite false-twisted yarn that has exited from the roll may be wound as it is, but as shown in the figure, it may be subjected to a relaxation heat treatment by the secondary heater 11 and wound as a composite false-twisted yarn with reduced torque.
【0039】従来、FY−AおよびFY−Bに対応する
原糸は、両糸の間に伸度差が必要なことから、1000
〜1600m/分程度の紡糸引取速度で得られた未延伸
糸及び2800〜3600m/分程度の紡糸取速度で得
られた中間配向糸の合糸(引揃糸ないし混繊糸)を用い
ていた。Conventionally, since the yarns corresponding to FY-A and FY-B require a difference in elongation between both yarns, 1000
The undrawn yarn obtained at a spinning take-up speed of about 1600 m / min and the intermediate-oriented yarn obtained at a take-up speed of about 2800-3600 m / min (aligned yarn or mixed yarn) were used. .
【0040】これに対して、本発明では、上記の“10
00〜1600m/分程度の紡糸引取速度で得られた未
延伸糸”に対応するFY−Aは、FY−Bの紡糸引取速
度に相当する速度で、該未延伸糸並みの伸度水準を維持
しながら、中間配向糸として得られるので、両糸を実質
的に同じ紡糸引取速度の下に中間配向糸として得ること
が出来、従って製造コスト、設備費、及び設備スペース
の縮小の面で極めて有利になる。On the other hand, in the present invention, the above "10" is used.
FY-A corresponding to the "undrawn yarn obtained at a spinning take-up speed of about 0 to 1600 m / min" is a speed corresponding to the spinning take-up speed of FY-B and maintains the same elongation level as the undrawn yarn. However, since they are obtained as intermediate oriented yarns, both yarns can be obtained as intermediate oriented yarns at substantially the same spinning take-off speed, and therefore extremely advantageous in terms of manufacturing cost, equipment cost, and equipment space reduction. become.
【0041】[0041]
【実施例】以下、実施例を挙げて本発明を更に詳細に説
明するが、その際使用する固有粘度、沸水収縮率及び自
発伸長性は、夫々以下の定義に従う。The present invention will be described in more detail with reference to the following examples. Inherent viscosity, boiling water shrinkage and spontaneous extensibility used in this case are as defined below.
【0042】・固有粘度:オルソクロルフェノール中に
ポリエステルポリマーを各種濃度[C](g/100m
l)で溶解させ、溶解している溶液について35℃で測
定した[ηsp(比粘度)/C]を濃度零に補外した値
[η]を固有粘度として用いた。Intrinsic viscosity: Polyester polymer in orthochlorophenol at various concentrations [C] (g / 100 m
The value [η] obtained by extrapolating [ηsp (specific viscosity) / C] to zero concentration measured at 35 ° C. for the dissolved solution was used as the intrinsic viscosity.
【0043】・沸水収縮率(BWS) 試料を検尺機
(周長1125cm)にて10回転させて得た綛にデニ
ール当たり1/30gの軽荷重を掛けた状態で綛長
(L)を測定する。次に、軽荷重を外した状態95℃で
30分間熱水処理し、乾燥後に再度前記の軽荷重を掛け
状態で綛長(L0)を測定する。BWSは[(L−L0)
/L]×100(%)で表わされる。Boiled water shrinkage (BWS) The length (L) of a sample obtained by rotating the sample 10 times with a measuring instrument (circumferential length 1125 cm) was applied with a light load of 1/30 g per denier. To do. Next, hot water treatment is carried out at 95 ° C. for 30 minutes with the light load removed, and after drying, the length (L0) is measured again with the light load applied. BWS is [(L-L0)
/ L] × 100 (%).
【0044】・自発伸長性:混繊糸、あるいは弛緩熱処
理後の混繊糸を布帛にして予備リラックスすると一般に
収縮する。ここでの自己身長とはこれ以後の処理で、一
旦収縮したものが伸びる事を示す(プリセット、アルカ
リ処理、ファイナルセットの後処理で混繊糸の特定の成
分が伸びる性質を示す)。評価方法は混繊糸を用いて以
下の方法で評価した。Spontaneous extensibility: When the mixed fiber or the mixed fiber after the relaxation heat treatment is used as a cloth and pre-relaxed, it generally shrinks. Here, the self-height means that what is once shrunk grows in the subsequent treatment (shows the property that a specific component of the mixed fiber stretches in the preset treatment, the alkali treatment, and the post-treatment of the final set). As the evaluation method, mixed fiber was used and evaluated by the following method.
【0045】かせ取りで3000deになるだけ混繊
糸(例:芯鞘構造糸)を手動式検尺機で巻取る。
かせに6gのS字型分銅の荷重をかけ、長さを測定→
湿熱95℃、30分(12g荷重)→湿熱130℃、3
0分(12g荷重)→乾熱190℃、5分(12g荷
重)の処理を行い、その収縮率を以下のの方法で調べ
る。処理後の試料は、荷重をかけた為、次の処理に使用
しない(全部でn=9サンプルを準備、各工程でn=3
を使用)。
芯(収縮糸)の収縮率を調べる為にの混繊処理糸
(乾熱190℃、5分処理糸)に106g荷重で長さL2
を求めた。鞘糸(自己伸長糸)は直線になるまで更に手
で荷重をかけて引き伸ばし長さL3を測定し、それぞれ
を湿熱95℃30分(12g荷重)処理後の長さL1対す
る収縮率(%)を求め自己伸長率を求めた。
・芯(収縮糸)の自己伸長率(%)=(L2−L1)/L1×100(%)
・鞘(自己伸長糸)の 〃 =(L3−L1)/L1×100(%)A mixed fiber yarn (eg, core-sheath structure yarn) is wound up by a manual measuring machine so that it is skeined to 3000 de. Load a 6g S-shaped weight on the skein and measure the length →
Wet heat 95 ℃, 30 minutes (12g load) → Wet heat 130 ℃, 3
A treatment of 0 minutes (12 g load) → dry heat at 190 ° C. for 5 minutes (12 g load) is performed, and the shrinkage rate is examined by the following method. The sample after the treatment was not used for the next treatment because a load was applied (n = 9 samples were prepared in total, n = 3 in each step).
use). L2 with 106g load on mixed fiber treated yarn (dry heat 190 ° C, 5min treated yarn) to check the shrinkage rate of core (shrinkable yarn)
I asked. The sheath yarn (self-extending yarn) is stretched by further applying a load by hand until it becomes a straight line, and the length L3 is measured, and the shrinkage rate (%) with respect to the length L1 after each treatment with wet heat at 95 ° C for 30 minutes (load of 12 g) Then, the self-expansion rate was calculated.・ Self-expansion rate (%) of core (shrinkable yarn) = (L2-L1) / L1 × 100 (%) ・ 〃 of sheath (self-expanding yarn) = (L3-L1) / L1 × 100 (%)
【0046】[実施例1]固有粘度が0.64のポリエ
チレンテレフタレートを常法により乾燥し、紡糸直前
に、これに配向結晶抑制剤としてメタクリル樹脂(クラ
ペットSH‐N 色番1000)を、ポリマーに対して
1.5重量%の割合でチップブレンド後、ノズル孔径
0.3mm、ノズル長さ0.6mmの紡糸口金を用い、
口金温度282℃、紡糸引取速度3300m/分で紡出
し、87.5de/24filのポリエステル中間配向
糸(FY−A)を得た。この糸の物性は、強度1.2g
/de、伸度305%、NDR133%、BWS41.
9%であった。Example 1 Polyethylene terephthalate having an intrinsic viscosity of 0.64 was dried by a conventional method, and immediately before spinning, a methacrylic resin (Clapet SH-N color number 1000) was added to the polymer as an oriented crystal inhibitor. After chip blending at a ratio of 1.5% by weight, a spinneret with a nozzle hole diameter of 0.3 mm and a nozzle length of 0.6 mm was used.
Spinning was performed at a spinneret temperature of 282 ° C. and a spinning take-up speed of 3300 m / min to obtain a polyester intermediate oriented yarn (FY-A) of 87.5 de / 24 fil. The physical properties of this yarn are 1.2g strength
/ De, elongation 305%, NDR 133%, BWS41.
It was 9%.
【0047】一方、固有粘度が0.64のポリエチレン
テレフタレートイソフタレート共重合ポリエステル(テ
レフタール酸の10モル%をイソフタル酸で置換)をノ
ズル孔径0.4mm、ノズル長0.8mmの紡糸口金を
用い、口金温度282℃、紡糸引取速度3300m/分
で紡出して、87.5de/12filのポリエステル
中間配向糸(FY−B)を得た。この糸の物性は、強度
2.4g/de、伸度146%、NDR52%、BWS
57.7%であった。On the other hand, polyethylene terephthalate / isophthalate copolyester having an intrinsic viscosity of 0.64 (10 mol% of terephthalic acid was replaced with isophthalic acid) was used with a spinneret having a nozzle hole diameter of 0.4 mm and a nozzle length of 0.8 mm. Spinning was performed at a spinneret temperature of 282 ° C. and a spinning take-up speed of 3300 m / min to obtain a polyester intermediate oriented yarn (FY-B) of 87.5 de / 12 fil. The physical properties of this yarn are strength 2.4 g / de, elongation 146%, NDR 52%, BWS
It was 57.7%.
【0048】次に、上記のFY−A及びFY−Bを、図
1に示す装置で混繊後、延伸・熱固定して、延伸された
異収縮混繊糸を得た。その際、両糸を引揃えて、供給ロ
ール1と第1引取ロール(表面温度80℃)2との間に
設けたインターレースノズル3に282m/分の速度
で、1.2%のオーバーフィード率の下に供給し、1.
5kg/cm2の圧空により交絡させ、インターレース
を付与して多様性混繊糸を得た。Next, the above-mentioned FY-A and FY-B were mixed by the device shown in FIG. 1 and then stretched and heat-fixed to obtain a stretched different-shrinkage mixed yarn. At that time, both yarns were aligned, and the interlace nozzle 3 provided between the supply roll 1 and the first take-up roll (surface temperature 80 ° C.) 2 provided an overfeed rate of 1.2% at a speed of 282 m / min. Supply under 1.
Interlace was imparted by entanglement with a compressed air of 5 kg / cm 2 to obtain a diversity mixed yarn.
【0049】次いで、多様性混繊糸を該第1引取ロール
2(周速度:286m/分、直径:8.9cm)に8回
巻回して予備加熱を施した後(接触時間0.48秒)、
表面温度が110℃の第2引取ロール4(周速度:50
0m/分、直径:8.9cm)に8回巻回し(接触時間
0.28秒)、両ロール間で延伸倍率1.75で延伸し
ながら、第2引取ロール4で熱固定してパッケージ6に
巻き取った。Next, the multi-purpose mixed yarn is wound around the first take-up roll 2 (peripheral speed: 286 m / min, diameter: 8.9 cm) eight times and preheated (contact time 0.48 seconds). ),
The second take-up roll 4 having a surface temperature of 110 ° C. (peripheral speed: 50
0 m / min, diameter: 8.9 cm) was wound 8 times (contact time 0.28 seconds), and while being stretched at a stretch ratio of 1.75 between both rolls, heat-fixed by the second take-up roll 4 to package 6 Rolled up.
【0050】得られた異収縮混繊糸の物性は、強度2.
4g/de、伸度37.9%、BWS16.5%であっ
た。The physical properties of the obtained differently contracted mixed yarn are as follows:
It was 4 g / de, the elongation was 37.9% and the BWS was 16.5%.
【0051】この混繊糸を、経60本/cm、緯35本
/cmの平織物に織成し、予備リラックス(湿熱96℃
10分)、本リラックス(湿熱130℃20分)、プリ
セット(乾熱195℃1分)、アルカリ減量(95℃、
減量率20%)、常法により130℃、1時間で緑色に
染色後、ファイナルセット(乾熱180℃、1分)し
た。得られた染色織物は高反撥性でウールライクタッチ
を有し、膨らみ感のある梳毛調織物であった。This mixed yarn is woven into a plain weave having a warp of 60 yarns / cm and a weft of 35 yarns / cm, and is subjected to preliminary relaxation (wet heat 96 ° C.).
10 minutes), relaxing (wet heat 130 ° C 20 minutes), preset (dry heat 195 ° C 1 minute), alkali weight loss (95 ° C,
The weight loss was 20%), and after dyeing a green color at 130 ° C. for 1 hour by a conventional method, final setting (dry heat 180 ° C., 1 minute) was performed. The obtained dyed woven fabric was a carded-like woven fabric having a high resilience, a wool-like touch, and a swelling feeling.
【0052】[参考例]実施例1の熱延伸・熱固定工程
で、FY−Aのみを同じ条件で処理して得た延伸糸は、
5.6%の自発伸長性を呈した。Reference Example A drawn yarn obtained by treating FY-A only under the same conditions in the hot drawing / heat setting step of Example 1 was
It exhibited a spontaneous elongation of 5.6%.
【0053】[実施例2]実施例1において、メタクリ
ル樹脂の添加量を1.0重量%に変更する以外は同様の
操作を実施した。得られた異収縮混繊糸の物性は、強度
2.9g/de、伸度38.2%、BWS15.7%で
あった。Example 2 The same operation as in Example 1 was carried out except that the addition amount of the methacrylic resin was changed to 1.0% by weight. The physical properties of the obtained different-shrinkage mixed filament yarn were a strength of 2.9 g / de, an elongation of 38.2% and a BWS of 15.7%.
【0054】[実施例3]実施例1において、メタクリ
ル樹脂の添加量を0.5重量%に変更する以外は同様の
操作を実施した。得られた異収縮混繊糸の物性は、強度
3.1g/de、伸度31%、BWS12.1%であっ
た。[Example 3] The same operation as in Example 1 was carried out except that the addition amount of the methacrylic resin was changed to 0.5% by weight. The physical properties of the obtained different shrinkage mixed yarn were as follows: strength 3.1 g / de, elongation 31%, BWS 12.1%.
【0055】[実施例4]実施例1において、実施例1
に示した2種のノズル孔群を穿孔した紡糸口金を用い
て、FY−A及びFY−Bをコスパン法により紡出する
以外は同様の操作を実施した。[Fourth Embodiment] The first embodiment is the same as the first embodiment.
The same operation was carried out except that FY-A and FY-B were spun by the cospan method using the spinneret in which the two kinds of nozzle hole groups shown in (3) were used.
【0056】[実施例5]実施例1において、ポリエチ
レンテレフタレートイソフタレート共重合ポリエステル
の代わりに、固有粘度が0.65で共重合ポリエステル
(テレフタール酸の4.0モル%をイソフタル酸で、エ
チレングリコールの6.0モル%をビスフェノールAジ
エチレングリコールで置換)を使用する以外は同様の操
作を実施した。得られた異収縮混繊糸の物性は、強度
2.3g/de、伸度36.5%、BWS17.2%で
あった。[Example 5] In Example 1, instead of the polyethylene terephthalate isophthalate copolyester, a copolyester having an intrinsic viscosity of 0.65 (4.0 mol% of terephthalic acid was isophthalic acid and ethylene glycol was used). Was replaced by bisphenol A diethylene glycol). The physical properties of the obtained different-shrinkage mixed yarn were strength 2.3 g / de, elongation 36.5%, and BWS 17.2%.
【0057】[実施例6]実施例1において、メタクリ
ル樹脂の添加量を3.0重量%に変更する以外は同様の
操作を実施した。得られた異収縮混繊糸の物性は、強度
2.2g/de、伸度36.0%、BWS17.5%で
あった。[Example 6] The same operation as in Example 1 was carried out except that the addition amount of the methacrylic resin was changed to 3.0% by weight. The physical properties of the obtained different-shrink mixed yarn were strength 2.2 g / de, elongation 36.0%, and BWS 17.5%.
【0058】[実施例7]実施例1において、メタクリ
ル樹脂の添加量を5.0重量%に変更する以外は同様の
操作を実施した。得られた異収縮混繊糸の物性は、強度
2.0g/de、伸度38.2%、BWS18.2%で
あった。Example 7 The same operation as in Example 1 was carried out except that the addition amount of the methacrylic resin was changed to 5.0% by weight. The physical properties of the obtained different shrinkage mixed yarn were as follows: strength 2.0 g / de, elongation 38.2%, BWS 18.2%.
【0059】[比較例1]実施例1において、メタクリ
ル樹脂の添加を省略する以外は、同様の操作を実施し
た。得られた異収縮混繊糸の物性は、強度4.3g/d
e、伸度29.3%、BWS8.4%であった。Comparative Example 1 The same operation as in Example 1 was carried out except that the addition of the methacrylic resin was omitted. The physical properties of the obtained different shrinkage mixed yarn have a strength of 4.3 g / d.
e, the elongation was 29.3% and the BWS was 8.4%.
【0060】以上の実施例1〜7及び比較例1で得られ
た多様性混繊糸において、FY−AとFY−Bとの伸度
差を表1に、更に各糸のNDR及びBWSについて表2
に示す。In the diversity mixed yarns obtained in Examples 1 to 7 and Comparative Example 1 above, the difference in elongation between FY-A and FY-B is shown in Table 1, and the NDR and BWS of each yarn are also shown. Table 2
Shown in.
【0061】[0061]
【表1】 [Table 1]
【0062】(注)伸度差:〔FY−Aの伸度(%)〕
−〔FY−Bの伸度(%)〕(Note) Elongation difference: [Elongation of FY-A (%)]
-[Elongation of FY-B (%)]
【0063】[0063]
【表2】 [Table 2]
【0064】[実施例8]固有然度が0.64のポリエ
チレンテレフタレートチップに、実施例1で用いたメタ
クリル樹脂をチップ重量を基準として1.5重量%の割
合でチップブレンド後、ノズル孔径0.3mm、ノズル
長さ0.6mmの紡糸口金を用い、口金温度282℃、
紡糸引取速度3300m/分で紡出し、140de/4
8filのポリエステル中間配向糸(FY−A)を得
た。この中間配向糸の物性は、強度1.62g/de、
伸度290%、NDR116%であった。[Embodiment 8] A polyethylene terephthalate chip having a peculiarity of 0.64 was blended with the methacrylic resin used in Embodiment 1 at a ratio of 1.5% by weight based on the weight of the chip, and the nozzle hole diameter was 0. Using a spinneret with a diameter of 0.3 mm and a nozzle length of 0.6 mm, the spinneret temperature is 282 ° C.,
Spinning at a take-up speed of 3300 m / min, 140 de / 4
An 8 fil polyester intermediate orientation yarn (FY-A) was obtained. The physical properties of this intermediate oriented yarn are as follows: strength 1.62 g / de,
The elongation was 290% and NDR was 116%.
【0065】一方、上記の紡糸機に隣接する別の紡糸機
から、固有粘度が0.64のポリエチレンテレフタレー
トポリマーを、ノズル孔径0.4mm、ノズル長さ0.
8mmの紡糸口金を用いて、口金温度282℃、紡糸引
取速度3300m/分で紡出し、115de/15fi
lのポリエステル中間配向糸(FY−B)を得た。On the other hand, a polyethylene terephthalate polymer having an intrinsic viscosity of 0.64 was fed from another spinning machine adjacent to the above spinning machine to a nozzle hole diameter of 0.4 mm and a nozzle length of 0.
Spinning was performed at a spinneret temperature of 282 ° C. and a spinning take-up speed of 3300 m / min using an 8 mm spinneret, and 115 de / 15 fi
l polyester intermediate oriented yarn (FY-B) was obtained.
【0066】次に、図3の装置を用い、両糸をオーバー
フィード率2.0%、圧空2kg/cm2、加工速度3
25m/分の条件下にインターレス処理して多様性混繊
糸としてから、ヒーター8の温度160℃、仮撚具9と
して3軸フリクションディスクを用いて、D/Y=1.9
(D:ディスクの周速度、Y:糸速度)、延伸倍率1.
7倍の下で同時延伸・仮撚加工を実施した。Next, using the apparatus shown in FIG. 3, both yarns were fed at an overfeed rate of 2.0%, compressed air of 2 kg / cm 2 , and a processing speed of 3
After interlace treatment under the condition of 25 m / min to make a diversity mixed yarn, the temperature of the heater 8 is 160 ° C., the triaxial friction disk is used as the false twisting tool 9, and D / Y = 1.9.
(D: peripheral speed of disk, Y: yarn speed), draw ratio 1.
Simultaneous drawing and false twisting were performed under 7 times.
【0067】[実施例9]実施例8において、メタクリ
ル樹脂の添加量を1.0重量%に変更する以外は同様の
操作を実施した。[Example 9] The same operation as in Example 8 was carried out except that the addition amount of the methacrylic resin was changed to 1.0% by weight.
【0068】[実施例10]実施例8において、メタク
リル樹脂の添加量を0.5重量%に変更する以外は同様
の操作を実施した。[Example 10] The same operation as in Example 8 was carried out except that the addition amount of the methacrylic resin was changed to 0.5% by weight.
【0069】[実施例11]実施例8において、実施例
8に記載した2種のノズル孔を穿孔したコスパン用口金
を用いて、FY−A及びFY−Bをコスパン法により紡
出する以外は同様の操作を実施した。[Example 11] In Example 8, except that FY-A and FY-B were spun by the Cospan method using the cospan die having the two kinds of nozzle holes described in Example 8 The same operation was performed.
【0070】[実施例12]実施例8において、メタク
リル樹脂の添加量を3.0重量%に変更する以外は同様
の操作を実施した。[Example 12] The same operation as in Example 8 was carried out except that the addition amount of the methacrylic resin was changed to 3.0% by weight.
【0071】[実施例13]実施例8において、メタク
リル樹脂の添加量を5.0重量%に変更する以外は同様
の操作を実施した。[Example 13] The same operation as in Example 8 was carried out except that the addition amount of the methacrylic resin was changed to 5.0% by weight.
【0072】[比較例2]実施例8において、メタクリ
ル樹脂の添加を省略する以外は同様の操作を実施した。
得られた複合仮撚糸のうち、本発明によるものはFY−
AとFY−Bの間に従来同様十分な伸度差があるため、
芯鞘構造を呈し、膨らみ感に富み且つ梳毛調の風合を呈
した。これに対して、比較例2による複合仮撚糸にあっ
ては、 FY−AとFY−Bとの間に実質的な伸度差が
ないため、芯鞘構造をとるに至らず、従って膨らみ感が
なく、梳毛調には程遠いものであった。参考まで、実施
例及び比較例におけるFY−A及びFY−Bの伸度を表
3に示す。[Comparative Example 2] The same operation as in Example 8 was carried out except that the addition of the methacrylic resin was omitted.
Among the obtained composite false twisted yarns, those according to the present invention are FY-
Since there is a sufficient elongation difference between A and FY-B as in the past,
It had a core-sheath structure, was rich in swelling, and had a combed-like texture. On the other hand, in the composite false-twisted yarn according to Comparative Example 2, since there is no substantial difference in elongation between FY-A and FY-B, a core-sheath structure cannot be obtained, and thus a bulging feeling is obtained. It was far from a worsted look. For reference, Table 3 shows the elongations of FY-A and FY-B in Examples and Comparative Examples.
【0073】[0073]
【表3】 [Table 3]
【0074】[0074]
【発明の効果】本発明によれば、配向結晶化抑制剤の特
異な利用により、これまでの異収縮混繊糸、嵩高糸、更
には複合仮撚糸の原糸をより速い速度で中間配向糸とし
て得ることが可能になる。特に、延伸された異収縮混繊
糸を得るに際しては、弛緩工程が省略され、共に中間配
向糸から構成される多様性混繊糸を単に熱延伸・熱固定
するだけでよいので、生産性が一段と向上する。EFFECTS OF THE INVENTION According to the present invention, due to the specific use of the oriented crystallization inhibitor, the different shrinkage mixed yarns, bulky yarns, and composite false-twisted yarns can be intermediate-oriented yarns at a higher speed. It will be possible to get as. In particular, when obtaining a stretched heterogeneous-shrink mixed yarn, the relaxation step is omitted, and since the multi-component mixed yarn that is composed of the intermediate oriented yarn is simply hot-drawn and heat-fixed, the productivity is improved. Improve further.
【図1】本発明の多様性混繊糸から異収縮混繊糸を得る
ための装置の概略正面図。FIG. 1 is a schematic front view of an apparatus for obtaining a heterogeneous shrinkage mixed fiber from a diversity mixed fiber of the present invention.
【図2】本発明の多様性混繊糸から異収縮混繊糸を得る
ための、他の装置の概略正面図。FIG. 2 is a schematic front view of another device for obtaining a different shrinkage mixed yarn from the diversity mixed yarn of the present invention.
【図3】本発明の多様性混繊糸から複合仮撚加工糸を得
るための装置の概略正面図。FIG. 3 is a schematic front view of an apparatus for obtaining a composite false twist textured yarn from the diversity mixed yarn of the present invention.
FY−A 熱延伸・熱固定により自発伸長性を付与され
るポリエステルマルチフィラメント
FY−B FY−Aに比べて、伸度並びに自然延伸倍率
は小さいが、沸水収縮率の高いポリエステルマルチフィ
ラメント
1 供給ロール
2 第1引取ロール
3 インターレースノズル
4 第2引取ロール
5 非接触ヒーター
6 巻取パッケージFY-A Polyester multifilament to which spontaneous elongation is imparted by heat drawing and heat setting FY-B Compared with FY-A, the elongation and natural draw ratio are small, but the polyester multifilament 1 has high boiling water shrinkage. 2 First take-up roll 3 Interlace nozzle 4 Second take-up roll 5 Non-contact heater 6 Winding package
───────────────────────────────────────────────────── フロントページの続き (72)発明者 谷澤 整 大阪府茨木市耳原3丁目4番1号 帝人 株式会社 大阪研究センター内 (72)発明者 小川 公博 大阪府茨木市耳原3丁目4番1号 帝人 株式会社 大阪研究センター内 (56)参考文献 特開 平11−279879(JP,A) 特開 平7−243144(JP,A) 特開 平9−176920(JP,A) 特開 昭62−21833(JP,A) 特開 昭56−15425(JP,A) 特開 昭58−54035(JP,A) 特開 平4−333628(JP,A) 特開 平7−173720(JP,A) 特開 平11−140737(JP,A) (58)調査した分野(Int.Cl.7,DB名) D02G 1/00 - 3/48 D02J 1/00 - 13/00 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Sei Tanizawa 3-4-1 Mihara, Ibaraki City, Osaka Prefecture Teijin Limited Osaka Research Center (72) Inventor Kimihiro Ogawa 3-4-1 Mihara, Ibaraki City, Osaka Prefecture Teijin Limited Osaka Research Center (56) Reference JP-A-11-279879 (JP, A) JP-A-7-243144 (JP, A) JP-A-9-176920 (JP, A) JP-A-62-1 21833 (JP, A) JP 56-15425 (JP, A) JP 58-54035 (JP, A) JP 4-333628 (JP, A) JP 7-173720 (JP, A) JP-A-11-140737 (JP, A) (58) Fields investigated (Int.Cl. 7 , DB name) D02G 1/00-3/48 D02J 1/00-13/00
Claims (11)
ントから構成された混繊糸において、両方のフィラメン
トは共に中間配向糸であり、その際一方のフィラメント
(FY−A)は配向結晶抑制剤を含み、そして他方のフ
ィラメント(FY−B)に比べて沸水収縮率は低いが伸
度又は自然延伸倍率が大きいことを特徴とする多様性混
繊糸。1. A mixed filament yarn composed of two or more kinds of polyester multifilaments, both filaments being intermediate oriented yarns, wherein one filament (FY-A) contains an oriented crystal inhibitor. A multi-component mixed yarn having a lower boiling water shrinkage than the other filament (FY-B) but a high elongation or natural draw ratio.
である、請求項1記載の多様性混繊糸。2. The diversity mixed yarn according to claim 1, wherein the mixed yarn is a Co-spun yarn.
載の多様性混繊糸。3. The diversity mixed fiber according to claim 1, wherein the mixed fiber is a spun alignment yarn.
範囲にあり、且つ、FY−Aのそれよりも少なくとも5
%大きい、請求項1〜3いずれかに記載の多様性混繊
糸。4. The boiling water shrinkage of FY-B is in the range of 50 to 65%, and it is at least 5 more than that of FY-A.
%. The diversity mixed yarn according to any one of claims 1 to 3, which is large.
囲にあり、且つ、FY−Bのそれよりも少なくとも50
%大きい、請求項1〜4のいづれかに記載の多様性混繊
糸。5. The elongation of FY-A is in the range of 200 to 370%, and is at least 50 more than that of FY-B.
%. The diversity mixed yarn according to any one of claims 1 to 4, which has a large percentage.
・熱固定処理を施すことを特徴とする、潜在的な膨らみ
特性を有する異収縮混繊糸の製造方法。6. A method for producing a heterogeneous shrinkage mixed yarn having latent bulging characteristics, which comprises subjecting the diversity mixed yarn according to claim 1 to a heat drawing / heat setting treatment.
れぞれ75〜120℃で0.3〜0.7秒、および10
0〜120℃で、0.1〜0.5秒の範囲にある、請求
項6記載の異収縮混繊糸の製造方法。7. The heating conditions in the heat stretching / heat setting treatment are 75 to 120 ° C. and 0 . 3 to 0.7 seconds, and 10
In 0~120 ℃, 0. The method for producing a different shrinkage mixed fiber according to claim 6, which is in the range of 1 to 0.5 seconds.
Aの自然延伸倍率以下で且つFY−Bの自然延伸率を超
える延伸倍率で延伸し、引き続き弛緩状態におくことを
特徴とする嵩高糸の製造方法。8. The diversity mixed yarn according to claim 1,
A method for producing a bulky yarn, which comprises drawing at a draw ratio not higher than the natural draw ratio of A and at a draw ratio exceeding the natural draw ratio of FY-B, and then leaving the yarn in a relaxed state.
にある、請求項8記載の嵩高糸の製造方法。9. The method for producing a bulky yarn according to claim 8, wherein the draw ratio is in the range of 1.70 to 1.80 times.
延伸仮撚加工を施すことを特徴とする複合仮撚糸の製造
方法10. A method for producing a composite false twisted yarn, which comprises subjecting the diversity mixed yarn according to claim 1 to simultaneous drawing false twisting.
夫々1.65〜1.75、および150〜170℃の範
囲にある、請求項10記載の複合仮撚糸の製造方法。11. The stretching ratio and the heat setting temperature of false twist are
The method for producing a composite false twisted yarn according to claim 10, which is in the range of 1.65 to 1.75 and 150 to 170 ° C, respectively.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16065098A JP3464385B2 (en) | 1998-06-09 | 1998-06-09 | Polyester diversity yarn |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16065098A JP3464385B2 (en) | 1998-06-09 | 1998-06-09 | Polyester diversity yarn |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH11350277A JPH11350277A (en) | 1999-12-21 |
JP3464385B2 true JP3464385B2 (en) | 2003-11-10 |
Family
ID=15719529
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP16065098A Ceased JP3464385B2 (en) | 1998-06-09 | 1998-06-09 | Polyester diversity yarn |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP3464385B2 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2001192942A (en) * | 1999-10-22 | 2001-07-17 | Teijin Ltd | Bulky finished yarn and method for producing the same |
ES2425471B1 (en) | 2012-03-12 | 2014-07-25 | Iqap Masterbatch Group, S.L. | Concentrated polymeric composition ("masterbatch"), its manufacturing process, and its use for the aditivication of polyester fibers and filaments |
-
1998
- 1998-06-09 JP JP16065098A patent/JP3464385B2/en not_active Ceased
Also Published As
Publication number | Publication date |
---|---|
JPH11350277A (en) | 1999-12-21 |
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