JPS5876522A - Preparation of crimped elastic fiber - Google Patents
Preparation of crimped elastic fiberInfo
- Publication number
- JPS5876522A JPS5876522A JP17442781A JP17442781A JPS5876522A JP S5876522 A JPS5876522 A JP S5876522A JP 17442781 A JP17442781 A JP 17442781A JP 17442781 A JP17442781 A JP 17442781A JP S5876522 A JPS5876522 A JP S5876522A
- Authority
- JP
- Japan
- Prior art keywords
- heat treatment
- fibers
- elasticity
- crimped
- yarn
- 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.)
- Granted
Links
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- Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
- Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
- Multicomponent Fibers (AREA)
Abstract
Description
【発明の詳細な説明】
本発明はポリウレタンエラストマー゛とポリアミドとの
複合繊維であって、細かい捲ＪｉＫよる弾性とエラスト
マー自身の弾性とを共に利用しうるようＫした複合繊維
の製造方法に関するもので、４ＩＫ、前記両成分を特定
の状１１に溶融紡糸して得た未延伸糸を延伸−熱処理す
ることＫより弾性回復にすぐれ、寸法安定性のよい、フ
ィツト性の高い捲縮弾性繊維を得るととＫある。DETAILED DESCRIPTION OF THE INVENTION The present invention is a composite fiber of polyurethane elastomer and polyamide, and relates to a method for producing a composite fiber that utilizes both the elasticity due to fine winding and the elasticity of the elastomer itself. , 4IK, by drawing and heat-treating the undrawn yarn obtained by melt-spinning both of the above components into a specific shape 11, a crimped elastic fiber with superior elastic recovery, good dimensional stability, and high fitting properties is obtained. There is TotoK.
一般に１ポリウレタン１００％の弾性糸はゴム弾性のみ
で、その伸長度は４００〜ＳＯＯ％にも達し、そのまま
では使用しにくい為、その伸長度を２００〜３００％迄
抑制する方法として、ウレタン弾性糸に捲縮加工糸又は
フラットヤーン等を−ｌ又は二重ＫＩＩ！！＃つけた、
いわゆるカバリング糸が使用されている。しかし、この
ようなカバリング糸に使用されているウレタン糸は湿式
紡糸法、又は乾式紡糸法による紡糸方法によって得られ
るものであって、溶融紡糸法によるものに比較し、生産
性が劣り、更にはカバリング工程が付加される為にコス
トが高くなる。しかも、カバリング糸には捲縮加工糸の
持つ嵩高性は到底望むことかできなく、靴下のゴム部、
スポーツ衣料の一部等のストレッチ性のみを要求される
特殊分野にしか使用されていないのが現状である。In general, elastic thread made of 100% polyurethane has only rubber elasticity, and its elongation reaches 400-SOO%, making it difficult to use as it is, so as a method to suppress the elongation to 200-300%, urethane elastic thread Add crimped yarn or flat yarn to -l or double KII! ! #Wearing,
A so-called covering thread is used. However, the urethane yarn used in such covering yarns is obtained by a wet spinning method or a dry spinning method, and is inferior in productivity compared to the melt spinning method. The cost increases because a covering process is added. Moreover, the bulkiness of crimped yarn cannot be expected from covering yarn, and the rubber part of socks,
Currently, it is only used in special fields that only require stretch properties, such as some sports clothing.
一方、このようなカバリング糸の持つ欠点を解消せんと
して熱収縮性の異なる１合体をサイド・パイ・サイド型
や偏心シースコア型に貼り合せた潜在捲縮能を有し、一
方の成分にポリウレタンエラストマーを用い、他方の成
分にポリアミドを用いた複合繊維（特公昭５５−３６７
２５号、特公昭５５−２７１７５号）が提案されている
。On the other hand, in order to overcome the drawbacks of such covering yarns, one component with different heat shrinkability is laminated into a side-pie-side type or an eccentric sheath core type, which has latent crimp ability, and polyurethane is used as one component. Composite fiber using elastomer and polyamide as the other component (Japanese Patent Publication No. 55-367
No. 25, Special Publication No. 55-27175) has been proposed.
かかる複合繊維は、細かくて多くの捲縮を有し、且つ捲
縮性能も優れているため、パンティストッキング郷の捲
癲弾性が要求される分野に用いられている。しかしなが
ら、これらのポリウレタンエラストマーを用いた複合繊
維ではポリウレタンエラストマーの熱収縮性を利用し、
細かい捲縮を生み出すうえでは有効であるが、ポリウレ
タンエラストマー自身の弾性（ゴム弾性）％性は、はと
んど利用されてない。換言すればこれら複合繊維におい
ては、それ自身弾性を呈するウレタンエラストマーを用
いながらも会合線維という形の捲縮利用にのみ終始し、
前記１弾性′の利用ひいては捲縮と弾性の相乗的利用に
よる高ストレッチ化については何等注目されていなかっ
たのである。Such composite fibers are fine, have many crimps, and have excellent crimp performance, so they are used in fields where crimp elasticity is required, such as pantyhose. However, these composite fibers using polyurethane elastomer utilize the heat shrinkability of polyurethane elastomer,
Although effective in producing fine crimps, the elasticity (rubber elasticity) of polyurethane elastomer itself is rarely utilized. In other words, although these composite fibers use urethane elastomer, which itself exhibits elasticity, they only utilize crimped fibers in the form of associated fibers.
No attention has been paid to the use of the above-mentioned 1 elasticity' or to the synergistic use of crimp and elasticity to achieve high stretch.
本発明者らは、かかる従来の欠点を解消すべく鋭意検討
した結果、ポリウレタンエラストマーとポリアミドとを
特定の複合状態に貼り合わせ、その後の延伸と弛緩熱処
理とＫより、捲縮による素性と弾性的性質に加えて、エ
ラストマー特有のゴム弾性的性質をも合わせ持つ捲縮弾
性繊維を安価に得ることが出来ることを見い出し本発明
に到達した。As a result of intensive studies to eliminate such conventional drawbacks, the present inventors have found that by bonding polyurethane elastomer and polyamide in a specific composite state, and then applying stretching, relaxation heat treatment, and K, the properties and elasticity due to crimp are improved. The present inventors have discovered that it is possible to obtain crimped elastic fibers at low cost that have the rubber elastic properties unique to elastomers in addition to the properties of elastomers.
却ち、本発明は、成分の一方がポリウレタンエラストマ
ーであり、他方の成分がポリアミドであるサイド・パイ
・サイド型又は偏心シースコア型捲縮複合繊維の製造に
おいて、前記両成分を複合溶融紡糸して得た未延伸糸を
延伸・熱処理した後、加熱流体ノズルにより弛緩熱処理
し、その際、紡糸・熱処理を以下の■〜■の条件が満足
される如〈実施して、得られる捲縮糸の連木収幅率を２
２％以下に調整することを特徴とする捲縮弾性繊維の製
造法である。On the contrary, the present invention provides a method for manufacturing a side-pie-side type or eccentric sheath core type crimped composite fiber in which one of the components is a polyurethane elastomer and the other component is a polyamide, by composite melt spinning of both components. After drawing and heat-treating the undrawn yarn obtained by The continuous tree yield rate of 2
This is a method for producing crimped elastic fibers characterized by adjusting the content to 2% or less.
条件■〜■
■複合線維の横断面の形状が偏平であり、かつ、該横断
面の重心を通る長径上に各成分の１心が存在すること
■延伸後の熱処理温度：蔓温〜１２０℃■加熱流体温度
二８０〜１５０℃
■９［ｇ緩熱処理時の弛緩率：１０％以下本発明を更に
詳細に説明する。本発明者らはポリウレタンエラストマ
ーとポリアミドとの複合捲紬鰺維について、捲縮による
弾性とエラストマーによるゴム弾性とを共に利用できる
最もストレッチ性に豊む弾性糸の糸構造について樵′ｊ
ａ＠討した。その結果、Ｉｌｌｌｌ前面形状が繭形や長
円形であり、かつ、その長径上に両成分の１心が位置す
るよう両成分を貼り合わせた保合俺ｍ轍維の構造が最も
好ましいことを知った。Conditions ■～■ ■The cross-sectional shape of the composite fiber is flat, and one core of each component is present on the major axis passing through the center of gravity of the cross-section ■Heat treatment temperature after stretching: Vine temperature ~ 120°C (1) Heated fluid temperature: 280-150°C (9) Relaxation rate during slow heat treatment: 10% or less The present invention will be explained in more detail. The present inventors have investigated the yarn structure of an elastic yarn with the most stretchability, which can utilize both the elasticity due to crimping and the rubber elasticity due to the elastomer, for composite wound pongee fibers made of polyurethane elastomer and polyamide.
a @ defeated. As a result, we found that the most preferable structure is a rutted fiber structure in which the front surface is cocoon-shaped or oval, and both components are bonded together so that one core of both components is located on the long axis. Ta.
即ち、かかる横断面形状をもった複合捲縮繊維は、第４
図イの如く伸長の初期にはフィル状の捲縮状ＩＩＫある
が、伸長されるに従い捲縮が伸ばされ、やがて第４図口
の如く伸長されたウレタンを芯成分としてそのまわりに
ナイロンが、らせん状まいた状態、いわゆるスクリュー
構造の状態となる。更に、この状態の糸条を伸長すると
やがて第４図ハの如くらせん状のナイｐ）もすっかり伸
びた状態となる。この過程で、スクリュー構造となる迄
は倦縮弾性が支配し、スクリュー構造の状態かららせん
がなくなる迄はエラストマーのゴム弾性が支配している
。That is, the composite crimped fiber having such a cross-sectional shape is
At the beginning of the expansion, as shown in Figure A, there is a fill-like crimped IIK, but as the expansion progresses, the crimps are extended, and eventually, as shown in Figure 4, nylon is formed around the expanded urethane as a core component. It becomes a spirally wound state, a so-called screw structure state. Furthermore, when the yarn in this state is stretched, the spiral knife (see FIG. 4C) will eventually become completely stretched. In this process, the elasticity of the elastomer dominates until the screw structure is formed, and the rubber elasticity of the elastomer dominates until the screw structure loses its helix.
かかる肉弾性を併せ持つ、衣料用途に適する弾性糸は前
述した■〜■条件を全て満足し、得られる捲縮糸の連木
収繻率が２２％以下に調贅シた時のみ高い生鍾性のもと
に製造できるのである。Elastic yarns that have such flesh elasticity and are suitable for clothing applications satisfy all of the above-mentioned conditions 1 to 2, and have high raw sintering properties only when the resulting crimped yarn has a continuous string retention rate of 22% or less. It can be manufactured under the
本発明において、成分の一方であるポリウレタンエラス
トマーとしては溶融紡糸できることが必要で、通常融点
が２００〜２４０℃、硬さく ＪＩＳ Ｋ−６３０１Ｋ
て測定）が９０〜１０Ｇのものが使用できる。また、他
方の成分であるポリアミドとしては、ナイロン６、ナイ
ロン６６゜ナイロン６１０．ナイロン１１．ナイロン１
２゜ナイロン１３等を用いることが出来る。これら周成
分の組合わせは紡糸凰伸、加工、製布工程で周成分が剥
離しない様に相溶性、貼り合わせ接着性の良好なものを
選ぶことが必要である。In the present invention, the polyurethane elastomer, which is one of the components, must be able to be melt-spun, and usually has a melting point of 200 to 240°C and a hardness of JIS K-6301K.
(Measurement) of 90 to 10G can be used. The other component, polyamide, includes nylon 6, nylon 66°, nylon 610. Nylon 11. Nylon 1
2° nylon 13 or the like can be used. It is necessary to select a combination of these peripheral components that have good compatibility and adhesion so that the peripheral components do not peel off during spinning, processing, and fabric-making processes.
このような観点よりポリウレタンエラストマーとしては
％にカブ−ラクトン系もしくはポリ炭酸エステル系ポリ
ウレタンを用いるのが好ましい。尚、これらエラストマ
ー、ポリアミドには耐光性を改良する為に、ペンゾフエ
７ン系、べ１−
ンゾトリアゾール系化合物や無機マンガン化合−等の耐
光性改良剤を添加してもよい。From this point of view, it is preferable to use cablactone-based or polycarbonate-based polyurethane as the polyurethane elastomer. Incidentally, in order to improve the light resistance of these elastomers and polyamides, a light resistance improver such as a penzophenol-based compound, a benzotriazole-based compound, or an inorganic manganese compound may be added.
前述した■〜■の条件を詳細に説明する。本発明におい
て最も重畳なことは、得られた被合繊維の横＃面形状が
第１１イ、ρ、八に示す如く偏平で、かつ、横断面の長
径上に各成分の重心が存在することである。この様な横
断面形状をもつ捲縮繊維は前述したスクリュー構造を光
分に取ることができ、捲縮による弾性とエラストマーに
よるゴム弾性とを最もよく利用できるのである。The conditions (1) to (2) mentioned above will be explained in detail. What is most important in the present invention is that the cross-sectional shape of the obtained fibers is flat as shown in 11th A, ρ, and 8, and that the center of gravity of each component is on the major axis of the cross-section. It is. A crimped fiber having such a cross-sectional shape can have the above-mentioned screw structure, and can best utilize the elasticity due to crimping and the rubber elasticity due to the elastomer.
また、好ましい偏平の程度としては、横断面の重心を通
る長径の長さくａとする）と短径の長さくｂとする）と
の比（ａ／ｂ ）が１．２〜４の範囲にあるのが織編物
の風合等の兼合いより好ましい。In addition, the preferred degree of flattening is such that the ratio (a/b) of the length of the major axis passing through the center of gravity of the cross section is a) and the length of the minor axis is b) is in the range of 1.2 to 4. It is more preferable to have the same amount in consideration of the texture, etc. of the woven or knitted fabric.
かかる偏平形状に対して、第２図イ、−に示す如く横断
面形状を円形とした場合は第４図二の如く捲縮発現が充
分に起っても、第４図ホの如くスクリュー構造が弱くな
りエラストマーによるゴム弾性を充分に利用できなく本
発明の目的とする弾性糸味得られない。In contrast to such a flat shape, if the cross-sectional shape is circular as shown in Figure 2 A and -, even if crimp development occurs sufficiently as shown in Figure 4 2, the screw structure as shown in Figure 4 E The rubber elasticity of the elastomer becomes weak and the elasticity of the elastomer cannot be fully utilized, making it impossible to obtain the elastic thread quality that is the object of the present invention.
かかる繊維横断面形状をもつ複合繊維を溶融紡糸により
得るための紡糸口金としてはポリウレタンエラストマー
成分（Ｕ成分とする）とアミド成分（Ａ成分とする）と
を各々独立して吐出し、口金面直後の１点において接合
する口金、例えば第３図に示す口金が適している。第３
園は紡糸口金の一例を示す部分縦断側面図である。A spinneret for obtaining a composite fiber having such a fiber cross-sectional shape by melt spinning is used to separately discharge a polyurethane elastomer component (referred to as U component) and an amide component (referred to as A component), immediately after the spinneret surface. A cap that joins at one point, for example the cap shown in FIG. 3, is suitable. Third
1 is a partially vertical side view showing an example of a spinneret.
Ｕ成分とＡ成分とを各々導入孔１．３に導き、吐出孔ス
４を経て吐出されるが、その際、吐出孔λ４の距離ｊな
らびに両吐出孔の成す角度θによって前述したａ ／
ｂを調整することができる。The U component and the A component are each introduced into the introduction hole 1.3 and are discharged through the discharge hole S4, but at this time, the above-mentioned a/
b can be adjusted.
苓
本発明の目的とする複合繊維はｊをａ３〜ｔＬｌ諺、θ
を８〜ｉ ｏ”の範囲で調整することにより十分得るこ
とができる。The composite fiber that is the object of the present invention has j as a3 to tLl, and θ
A sufficient amount can be obtained by adjusting the value within the range of 8 to io''.
向、繊維横断面のＵ成分の面積とＡ成分の面積の比は得
られた捲縮繊維の染色Ｉ牢度９強度。The ratio of the area of the U component to the area of the A component in the cross section of the fiber is the dyeing strength of the obtained crimped fiber.
伸長９弾性率等よりａｓｓｔ−ｔｓの範囲が好ましく、
周成分の吐出量を変えるととＫより容易に調整できる。The range of ast-ts is preferable from the elongation 9 modulus of elasticity, etc.
It can be adjusted more easily by changing the discharge amount of the circumferential component.
かくして得られた複合紡出糸を本発明の目的とする細゛
かい捲縮による捲縮弾性とエラストマー自身のゴム弾性
とを共に利用しうるよ５にした、撓縮弾性繊維と成すに
は、得られた紡出糸を延伸後熱処理し、加熱流体ノズル
にて弛緩熱処理するに際し、下記の条件を満足すること
が肝要である。In order to make the thus obtained composite spun yarn into a flexible elastic fiber that can utilize both the crimp elasticity due to fine crimping and the rubber elasticity of the elastomer itself, which is the object of the present invention, It is important that the following conditions be satisfied when the obtained spun yarn is heat treated after drawing and subjected to relaxation heat treatment using a heated fluid nozzle.
まず必要なことは、弛緩熱処理後に得られた捲縮糸の潜
水収縮率が２２％以下であることである。この捲縮糸の
枢動率が２２％を厚えて島いと製織、製―性が悪く、又
、製品の寸法安定性の面でも好ましくない。連木収縮第
は姶伸後の熱処理温良が低く、又は加熱流体ｆｈ度が１
バい程＾くなる傾向をますが、後述するＬ＃押押後熱処
理温度、加熱流体温度の条件の範囲内にあれば潜水収縮
率を２２％以下とすることは光分５３能である。First of all, it is necessary that the submerged shrinkage rate of the crimped yarn obtained after the relaxation heat treatment be 22% or less. The pivot rate of this crimped yarn is 22% thick, which results in poor weaving and manufacturing properties, and is also unfavorable in terms of dimensional stability of the product. In the case of continuous tree shrinkage, the heat treatment temperature after stretching is low, or the heating fluid fh degree is 1
However, as long as the L# post-pressing heat treatment temperature and heated fluid temperature are within the range of conditions described below, it is optically possible to keep the submerged shrinkage rate to 22% or less.
かかる延伸後の熱処理温度を室温〜１２０゛Ｃ２２％以
下となり、寸法安定性の面ではよくなる＆向、捲縮率が
低下し、好ましい捲縮弾性が得られない。尚、延伸温度
は通量の＠度で蔓温〜６０℃である。The heat treatment temperature after such stretching is from room temperature to 120° C.22% or less, which improves dimensional stability and decreases the crimp rate, making it impossible to obtain desirable crimp elasticity. Incidentally, the stretching temperature is from the temperature at which the film is stretched to 60°C.
また、加熱流体ノズルの流体温度は８０〜１５０℃が必
要である。流体温度が８０℃禾滴ると、熱収動率は低下
するが、伸度が大ぎくなって伸びやすく、又、捲縮率が
低下して好ましい捲縮弾性が得られない。ここで使用す
る流体としては、空気又は蒸気が好ましいが、特に空気
が騒音も少なく好ましい。Further, the fluid temperature of the heated fluid nozzle needs to be 80 to 150°C. When the fluid temperature drops to 80° C., the heat shrinkage rate decreases, but the elongation increases and it becomes easy to stretch, and the crimp rate decreases, making it impossible to obtain desirable crimp elasticity. As the fluid used here, air or steam is preferable, and air is particularly preferable since it is less noisy.
尚、かかる加熱流体ノズルとしては従来より弛緩熱処理
用に使用されているノズル、例えば特公昭４５−３７５
７６号、実公昭４６−１６３５号、特公昭５６−３７３
３９号記載のノズルが使用できる。Incidentally, the heated fluid nozzle is a nozzle conventionally used for relaxation heat treatment, such as the Japanese Patent Publication No. 45-375.
No. 76, Jikko No. 46-1635, Special Publication No. 56-373
The nozzle described in No. 39 can be used.
次に、加熱流体ノズルでの弛緩熱処理時の弛緩率を１０
％以上、特［１０％以上かつ４０％以下にするのが好ま
しい。というのも捲−率は弛緩熱処理時の弛緩率により
大きく変化するので、目的とする捲縮率（捲縮弾性）の
俺動糸を得るためには弛緩率を前述範囲Ｋ１１ｉ！ｌす
ることが大切である。この時の弛緩率がｌＯ％末系Ｃ瓢
Ｈｔｉ’捲細率も低くなり、本発明の目的とする捲縮弾
性を有する捲細糸が得られない。尚、かかる弛緩率は下
記の式で決定される。Next, the relaxation rate during relaxation heat treatment with a heated fluid nozzle was set to 10
% or more, especially preferably 10% or more and 40% or less. This is because the winding rate varies greatly depending on the relaxation rate during the relaxation heat treatment, so in order to obtain a free moving yarn with the desired crimp rate (crimp elasticity), the relaxation rate must be set within the above-mentioned range K11i! It is important to At this time, the relaxation rate is 10%, and the winding ratio of the end-type carbon fiber Hti' is also low, making it impossible to obtain a winding yarn having the crimp elasticity that is the object of the present invention. In addition, this relaxation rate is determined by the following formula.
弛緩率（％）
１００
かかる催―糸を製造する延伸ψ熱処理工程としては、紡
糸と切離した、いわゆる刈地方式でも、又、紡糸と直結
した、いわゆる属地方式でもよい。史に延伸と弛緩熱処
理工程を直結した、いわゆるＤＴＹ方式でも、又、紡糸
・延伸・弛緩熱処理工程を全て直結した、いわゆる５Ｄ
ＴＹ 方式でもよく、これらの方式を任意に採用するこ
とができる。Relaxation rate (%) 100 The drawing ψ heat treatment step for producing such a spun yarn may be a so-called kairi method, which is separated from the spinning, or a so-called dependent method, which is directly connected to the spinning. In history, there is the so-called DTY method, which directly connects the stretching and relaxation heat treatment processes, and the so-called 5D method, which directly connects the spinning, stretching, and relaxation heat treatment processes.
The TY method may be used, and any of these methods can be adopted.
以上説明した如く、本発明によれば、ポリウレタンエラ
ストマーとボリア！ドとを特定の貼り合わせ状ＩＩＫ成
したサイドバイサイド型、又は偏心ジ−スフ７型の複合
紡出糸を、前述したΦ〜・の延伸及び弛緩熱処理条件の
もとに処理することにより、細かい推動による捲縮弾性
とエラストマー自身のゴム弾性とを共に利用できる捲縮
弾性繊維を得ることができる。その結果、従来にない高
伸長時の弾性回俵性及び弾性力の高い、すぐれた捲縮複
合繊維が得られる為、パンティストッキングやストレッ
チ織編物等に極めて有用である。As explained above, according to the present invention, polyurethane elastomer and boria! By treating side-by-side type or eccentric J-type 7 type composite spun yarn in which a specific bonded type IIK is formed with a double-sided bonded yarn under the above-mentioned drawing and relaxation heat treatment conditions of Φ~・, fine thrusting It is possible to obtain a crimped elastic fiber that can utilize both the crimped elasticity of the elastomer and the rubber elasticity of the elastomer itself. As a result, excellent crimped conjugate fibers can be obtained which have unprecedented high elasticity and elasticity at high elongation, making them extremely useful for pantyhose, stretch woven and knitted fabrics, and the like.
以下実施例により本発明を＃ｌ明する。ここで使用する
捲縮率（ＴＣ）、節水収縮率（Ｆｓ）、伸縮率、伸縮回
復率、及び捲縮弾性率、ゴム弾性率は次の方法により測
定した。The present invention will be illustrated below with reference to Examples. The crimp rate (TC), water-saving shrinkage rate (Fs), stretch rate, stretch recovery rate, crimp elasticity modulus, and rubber elasticity modulus used here were measured by the following methods.
ｌ）捲縮率 （’ｒｅ ） を節水収縮率（Ｆｓ）弛緩
熱処理後の糸をカセに取り、初期荷重２１に９ ／ ｄ
ｏの荷重をかけ、１分後のカセの長さをｌｏとする。次
に初期荷重をかけたまま一沸水中で２０分間捲縮発現処
理をし、その後−昼夜その荷重下で自然乾燥させる。次
に合計２００１Ｑ／ｄ＠の荷重をかけ、１分後の長さを
読み（１，） 、ついでその荷重を外し、初期荷１を再
度かげて１分後の長さを読み（ｌρ、捲ａ率（ＴＣ）、
節水収縮率（Ｆｓ）を次式にて算出する。l) Change the crimp rate ('re) to the water-saving shrinkage rate (Fs). Take the yarn after relaxation heat treatment into a skein and set the initial load to 21 to 9/d.
A load of o is applied, and the length of the skein after 1 minute is lo. Next, a crimp treatment is carried out for 20 minutes in monoboiling water while an initial load is applied, and then natural drying is carried out under that load day and night. Next, apply a total load of 2001Q/d@, read the length after 1 minute (1,), then remove the load, shade the initial load 1 again, and read the length after 1 minute (lρ, a rate (TC),
Calculate the water saving shrinkage rate (Fs) using the following formula.
２）伸縮率、伸縮回復率
測定は、弛緩熱処理後の糸をカセＫｌｔｌｉす、初期荷
重２ ｍｙ ／ ｄｏをかけ、連木中で２０分間捲縮発
現処理をし、次いで初期荷重をかけた状態で一昼夜自然
乾燥した試料について２゜±２℃、６５±２ＳＲＨの温
湿度下で行ない下記方法により糸を懸垂し行った。2) Measurement of expansion/contraction rate and expansion/contraction recovery rate was performed by spooling the yarn after relaxation heat treatment, applying an initial load of 2 my/do, subjecting it to crimp development treatment for 20 minutes in a continuous tree, and then applying the initial load. Samples that had been air-dried for a day and night were tested at a temperature and humidity of 2°±2°C and 65±2 SRH, and the threads were suspended in the following manner.
イ、試゛験糸長： ２００■（初期張力下での糸長）口
、初期張力下２■／ｄ・
ハ、試験荷重： ５，１０，２０，５０，１００゜２０
０．５００．１０Ｇ０，１５００ＩＩｇ／ｄｅ（各荷重
を糸の下端に回転しないように懸垂する）
二、荷重時間＝３分
ホ、荷電後歪長を測定し、除重彼初期張力をかける。A, Test yarn length: 200 ■ (yarn length under initial tension), 2 ■/d under initial tension C, Test load: 5, 10, 20, 50, 100°20
0.500.10G0,1500IIg/de (suspend each load on the lower end of the thread so as not to rotate) 2. Loading time = 3 minutes E) After charging, measure the strain length and apply the initial tension of the unloaded wire.
へ、初期張力をかけ３分経過時の残留歪を測定する。After applying initial tension, measure the residual strain after 3 minutes.
ト 伸ｉＩＡ率、伸縮回復率の算出は次式による。G. Calculation of the elongation iIA rate and elongation recovery rate is based on the following formula.
伸縮回＊率（％）
３）推動弾性率、ゴム弾性率
２）と同様にして得られた捲縮発現処理系をテンシρン
ロ１型引張試験機にかけ、２０倍のカセトメーターで試
料中央部を観ながら評価した。この時の条件は試料光２
０１．初期荷１２〜／ｄｅ＋伸長速度１００％／分、チ
ャートスピード２０α／分であり、カセトメーターは試
料中央部１０１の処に焦点をあてスタートさせる。この
捲縮糸が伸長され前述したスクリュー構造のや態になる
迄の伸度が捲縮弾性率である。更に、伸゛長することに
よりらせんがなくなるが、スクリュー構造の状態からら
せんがなくなる迄の伸度がゴム弾性率である。測定は５
回の平均儀なとった。Stretching times * rate (%) 3) Thrust elastic modulus, rubber elastic modulus The crimp development treatment system obtained in the same manner as in 2) was applied to a tensile tester type 1 tensile tester, and the central part of the sample was measured using a 20x casetometer. I evaluated it while watching it. The conditions at this time are sample light 2
01. The initial load is 12~/de+extension speed 100%/min, chart speed 20α/min, and the cassettemeter is started by focusing on the central part 101 of the sample. The degree of elongation of this crimped yarn until it becomes the above-mentioned screw structure is the crimped elastic modulus. Furthermore, the helix disappears when it is elongated, and the degree of elongation from the state of the screw structure until the helix disappears is the elastic modulus of the rubber. Measurement is 5
I took the mean time.
実施例
固有粘度〔η〕が１．１ （３０℃のｍ−クレゾール液
で測定）のナイロン６と、ポリウレタンエラストマー成
分としては、市販の熱可塑性ポリウレタンである、エラ
ストラン）ｉ：５９５（カブ−タイプ）及びエラストラ
ンＥ９９５（カーボネートタイプ）（共に日本エラスト
ラン■製）を用いた。ナイロン６は２４７℃、ポリウレ
タンはＥ５９５で２２８℃、又、Ｅ９９５では２３０℃
で別々ＫＩＮ融し、２４５℃に加熱して第３図に示すサ
イドパイサイド型口金を使用し、複合紡なした。複合＊
＃の横断面におけるポリウレタンとポリアミドの面積比
Ｕ／Ａは、各成分の吐出比を一整して１とし、かつ、横
断面形状は第１図イの形状としてａ ／ ｂを第３図の
口金のｊ及びθを調整することにより１・５とした。Examples Nylon 6 with an intrinsic viscosity [η] of 1.1 (measured with m-cresol liquid at 30°C) and a polyurethane elastomer component were commercially available thermoplastic polyurethane Elastran) i:595 (Cub-Cresol). Type) and Elastolan E995 (carbonate type) (both manufactured by Nippon Elastran ■) were used. 247℃ for nylon 6, 228℃ for polyurethane E595, and 230℃ for E995.
The mixture was melted separately in KIN, heated to 245° C., and composite spun using a side pie-side die as shown in FIG. composite*
The area ratio U/A of polyurethane and polyamide in the cross section # is set to 1 by adjusting the discharge ratio of each component, and the cross sectional shape is the shape shown in Figure 1 A, and a / b is as shown in Figure 3. It was set to 1.5 by adjusting j and θ of the cap.
°また、得られた紡出糸にはシリコン系油剤を０６ｉｌ
量チ付着させ、１００デニール／１２フイラメントの未
延伸糸とした。°Additionally, the obtained spun yarn was coated with 06il of silicone oil.
A quantity of the yarn was attached to form an undrawn yarn of 100 denier/12 filaments.
次いで得られた未延伸糸を一旦巻取り、別工程で延伸・
弛緩熱処理工程を直結したＤＴＹ方式又は得られた未延
伸糸を巻取ることなく延伸・熱処理工程の全てを直結し
た５ＤＴＹ 方式によりテストを行なった。この際、
延伸後の伸度が２５〜３５チとなる様に延伸し、引と続
いて種々の温・度で処理した後、直結して加熱圧空ノズ
ルに通し、圧空圧１．０に９／ｍＧで種々圧空温度と弛
緩率を変えた。表−ＩＫ紡糸、蔦伸、加工条件及び得ら
れた捲縮糸の物性を併せて示した。The resulting undrawn yarn is then wound up and stretched in a separate process.
Tests were conducted using a DTY method in which the relaxation heat treatment step was directly connected, or a 5DTY method in which all the drawing and heat treatment steps were directly connected without winding the obtained undrawn yarn. On this occasion,
Stretched so that the elongation after stretching is 25 to 35 inches, and then treated at various temperatures and degrees, directly connected and passed through a heated air nozzle at a pressure of 9/mG to a pressure of 1.0. The compressed air temperature and relaxation rate were varied. Table - IK spinning, vine stretching, processing conditions, and physical properties of the obtained crimped yarn are also shown.
更に１通常のサイド・パイ・サイド型口金を用い、第２
図イの如く紡糸したものの結果も併せて表−ＩＫ示した
。Furthermore, using a normal side-pie-side type cap, the second
The results of spinning as shown in Figure A are also shown in Table IK.
表−１に示す如く本発明の条件を満たすＮ１〜４ｓｒｌ
＆１７〜９．Ｎｎ１２〜１３では捲縮弾性率が８５〜ｘ
２ｓ％、ゴム弾性率が３５〜８０％でそれらの合計弾性
率も１２０〜２００％と大きく、Ｌ ０１／ ／ｄｏ荷
重下での伸縮回復率も８０チ以上と良好なストレッチ性
及び回復性を示し、寸法安定性の面でも％Ｋｆ％ｒｔｍ
のない弾性取前を甚
提供することができた。これに対し、延伸後の熱処理温
度又は加熱圧空温度が本発明の範囲よりも高いＮｎ ５
＋ Ｎｎ １’Ｏ及び本発明の弛緩率よりも低い１ｌ
ｉｔｔは、潜水収縮率は良好であるが、捲縮弾性率及び
ゴム弾性率も低く、伸縮回復率の面でも８０％以下と良
くなかった。N1-4srl that meets the conditions of the present invention as shown in Table-1
&17~9. Nn12-13 has a crimp modulus of 85-x
2s%, the rubber elastic modulus is 35-80%, and the total elastic modulus is as high as 120-200%, and the elasticity recovery rate under the L01//do load is 80 inches or more, providing good stretch and recovery properties. %Kf%rtm in terms of dimensional stability.
It was possible to provide an extremely large amount of elasticity. On the other hand, Nn 5 whose heat treatment temperature or heating and compressed air temperature after stretching is higher than the range of the present invention
+Nn 1'O and 1l lower than the relaxation rate of the present invention
Itt had a good diving shrinkage rate, but its crimp elasticity and rubber elasticity were low, and its stretch recovery rate was not good at 80% or less.
また、ＩＶ＆１６の如く加熱圧空温度が低いと捲縮、ｑ
図イの断面形状であるサイド・パ
イ・サイド型のものは伸長された時に十分なスクリュー
構造をとることができないため、ゴム弾性率が小さく、
パワーのあるストレッチ性能を有していなかった。Also, if the heating and compressed air temperature is low as in IV & 16, crimp, q
The side-pie-side cross-sectional shape shown in Figure A cannot have a sufficient screw structure when stretched, so the rubber elastic modulus is small.
It did not have powerful stretching performance.
第１図は本発明の複合繊維の例を示す横断面図、第２図
は従来の複合繊維の例を示す横断面図、第３図は本発明
の構台繊維を紡糸する際に使用する紡糸口金の１例を示
す側断面図、第４図は本発明の捲縮性弾性繊維の側面図
である。
Ｕはポリウレタンエラストマー、Ａはポリアミド成分を
示す。又、ｉは繊維横断向の重心、ａは重心ｉを通る長
径の長さ、ｂは１心ｉを通る短径の長さを示す。
第１図
イ、 ０． ／、。
イ・ 口。
手続補正書（方式）
昭和５７年３月ダ日
特許庁長官殿
１、事件の表示
特願昭 ５６−１７４４２７ 号２、発明の名称
捲縮弾性繊維の製造方法
３ 補正をする者
事件との関係 特許出願人
大阪市東区南本町１丁目１１番地
（３００）帝人株式会社
代表者 徳 末 知 夫
（１） 明細書第１９頁第２行目〜第１１行目を削除
する。
（２） 明細書第２１頁を以下の如く訂正する。
［４，図面の簡単な説明
＃Ｉ１図は本発明の複合線維の例を示す横断面図、第２
図は従来の複合繊維の例を示す横断面図、第３図は本発
明の複合繊維を紡糸する際に使用する紡糸口金の１例を
示す側断面図、ｗ４４図は本発明の捲縮弾性繊維の側面
図である。
Ｕはポリウレタンエラストマー、ムは
ポリアミド成分を示す。又、１は線維横断面の重心、ａ
は重心１を通る長径の長さ、ｂは重心ｉを通る短径の長
さを示す。
特許出願人 帝人株式会社
代理人 弁理士 前 １） 純 博 」以
上Fig. 1 is a cross-sectional view showing an example of the composite fiber of the present invention, Fig. 2 is a cross-sectional view showing an example of a conventional composite fiber, and Fig. 3 is a spinning yarn used when spinning the gantry fiber of the present invention. FIG. 4 is a side sectional view showing one example of the cap, and FIG. 4 is a side view of the crimpable elastic fiber of the present invention. U represents a polyurethane elastomer, and A represents a polyamide component. Further, i indicates the center of gravity in the fiber transverse direction, a indicates the length of the major axis passing through the center of gravity i, and b indicates the length of the minor axis passing through one core i. Figure 1 A, 0. /,. Lee, mouth. Procedural amendment (formality) March 1980 Commissioner of the Japan Patent Office 1 Indication of the case Patent application No. 174427/1983 2 Name of the invention Process for manufacturing crimped elastic fibers 3 Person making the amendment Relationship to the case Patent Applicant 1-11 Minamihonmachi, Higashi-ku, Osaka (300) Teijin Limited Representative Tomoo Tokusue (1) Page 19 of the specification, lines 2 to 11 are deleted. (2) Page 21 of the specification is amended as follows. [4, Brief description of the drawings #I1 is a cross-sectional view showing an example of the composite fiber of the present invention, the second
The figure is a cross-sectional view showing an example of a conventional composite fiber, Figure 3 is a side cross-sectional view showing an example of a spinneret used when spinning the composite fiber of the present invention, and Figure W44 is a crimped elasticity of the present invention. FIG. 3 is a side view of the fiber. U indicates a polyurethane elastomer, and Mu indicates a polyamide component. In addition, 1 is the center of gravity of the fiber cross section, a
b represents the length of the major axis passing through the center of gravity 1, and b represents the length of the minor axis passing through the center of gravity i. Patent Applicant Teijin Ltd. Agent Patent Attorney Former 1) Junhiro
Up
Claims (1)
り、他方の成分がポリアミドであるサイド拳パイ・サイ
ド型又は偏心シースコア型捲ｍ＊合繊維の製造において
、前記両成分を複合溶融紡糸して得た未延伸糸を延伸・
熱処理した後、加熱流体ノズルにより弛緩熱処理し、そ
の際、紡糸・熱処理を以下の■〜■の条件が満足される
如〈実施して、得られる捲動糸の湧水収縮率を２２％以
下にｌ１ＩＩｉすることを特徴とする捲縮弾性繊維の製
造法。 条件■〜■ ■複合繊維の横断面の形状が偏平であり、かつ、該横断
面の重心を通る長径上に各成分の重心が存在すること ■延伸後の熱処理温度：室温〜１２０℃■加熱流体温度
：８０〜１５０℃ ■弛緩熱処理時の弛緩率：ｘｏ％以下[Scope of Claims] (In the production of a side-fist pie-side type or eccentric sheath-core type wound composite fiber in which one of the ti components is a polyurethane elastomer and the other component is a polyamide, the above-mentioned two components are combined. The undrawn yarn obtained by melt spinning is stretched and
After the heat treatment, a relaxing heat treatment is performed using a heated fluid nozzle, and at that time, the spinning and heat treatment are carried out so that the following conditions (1) to (3) are satisfied. A method for producing crimped elastic fibers, characterized in that: l1IIi. Conditions ■～■ ■The shape of the cross section of the composite fiber is flat, and the center of gravity of each component is on the major axis passing through the center of gravity of the cross section.■Heat treatment temperature after drawing: room temperature to 120℃■Heating Fluid temperature: 80-150℃ ■ Relaxation rate during relaxation heat treatment: xo% or less
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17442781A JPS5876522A (en) | 1981-11-02 | 1981-11-02 | Preparation of crimped elastic fiber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17442781A JPS5876522A (en) | 1981-11-02 | 1981-11-02 | Preparation of crimped elastic fiber |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5876522A true JPS5876522A (en) | 1983-05-09 |
| JPS6358933B2 JPS6358933B2 (en) | 1988-11-17 |
Family
ID=15978349
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17442781A Granted JPS5876522A (en) | 1981-11-02 | 1981-11-02 | Preparation of crimped elastic fiber |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5876522A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63175118A (en) * | 1987-01-13 | 1988-07-19 | Kanebo Ltd | Yarn material for stocking |
| JPH0280617A (en) * | 1988-06-30 | 1990-03-20 | Toray Ind Inc | Polyurethane-polyamide based conjugate fiber |
| CN110079877A (en) * | 2019-05-30 | 2019-08-02 | 上海理工大学 | The coaxial spinneret device of four kinds of electrospinning multistage composites |
| CN115896965A (en) * | 2022-11-16 | 2023-04-04 | 中纺院（浙江）技术研究院有限公司 | Eccentric sheath-core polyamide-ammonia composite fully drawn yarn and preparation method thereof |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01112721U (en) * | 1988-01-22 | 1989-07-28 | ||
| JP2002363828A (en) * | 2001-06-06 | 2002-12-18 | Toray Ind Inc | Side by side conjugated fiber and method of producing the same |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5442441A (en) * | 1977-09-05 | 1979-04-04 | Toray Industries | Production of crimped finish yarn |
| JPS54138619A (en) * | 1978-04-17 | 1979-10-27 | Toray Ind Inc | Polyurethane eccentric sheath-core composite fibers |
| JPS54138618A (en) * | 1978-04-17 | 1979-10-27 | Toray Ind Inc | Polyurethane composite fibers |
-
1981
- 1981-11-02 JP JP17442781A patent/JPS5876522A/en active Granted
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5442441A (en) * | 1977-09-05 | 1979-04-04 | Toray Industries | Production of crimped finish yarn |
| JPS54138619A (en) * | 1978-04-17 | 1979-10-27 | Toray Ind Inc | Polyurethane eccentric sheath-core composite fibers |
| JPS54138618A (en) * | 1978-04-17 | 1979-10-27 | Toray Ind Inc | Polyurethane composite fibers |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63175118A (en) * | 1987-01-13 | 1988-07-19 | Kanebo Ltd | Yarn material for stocking |
| JPH0260765B2 (en) * | 1987-01-13 | 1990-12-18 | Kanebo Ltd | |
| JPH0280617A (en) * | 1988-06-30 | 1990-03-20 | Toray Ind Inc | Polyurethane-polyamide based conjugate fiber |
| CN110079877A (en) * | 2019-05-30 | 2019-08-02 | 上海理工大学 | The coaxial spinneret device of four kinds of electrospinning multistage composites |
| CN110079877B (en) * | 2019-05-30 | 2020-06-23 | 上海理工大学 | Four-component electrospinning multi-stage composite coaxial spinning head device |
| CN115896965A (en) * | 2022-11-16 | 2023-04-04 | 中纺院（浙江）技术研究院有限公司 | Eccentric sheath-core polyamide-ammonia composite fully drawn yarn and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6358933B2 (en) | 1988-11-17 |
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