JPH07243123A - Production of self-crimping polyester multifilament - Google Patents
Production of self-crimping polyester multifilamentInfo
- Publication number
- JPH07243123A JPH07243123A JP5684694A JP5684694A JPH07243123A JP H07243123 A JPH07243123 A JP H07243123A JP 5684694 A JP5684694 A JP 5684694A JP 5684694 A JP5684694 A JP 5684694A JP H07243123 A JPH07243123 A JP H07243123A
- Authority
- JP
- Japan
- Prior art keywords
- yarn
- spiral
- self
- spinning
- heating device
- 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.)
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Links
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- Artificial Filaments (AREA)
- Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
- Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、自己捲縮性を有するポ
リエステルマルチフィラメント糸の製造方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for producing a polyester multifilament yarn having a self-crimping property.
【０００２】[0002]
【従来の技術】従来より、嵩高性で軽量な織編物を得る
方法の一つとして、中空繊維糸を用いる方法が知られて
いる。中空繊維の場合、中空率は２０％程度が限界であ
り、曲げ応力が大きいことより、得られる織編物は、軽
量化は可能であるが、風合い的に硬いものとなり、また
仮撚加工によっても高い嵩高性の付与ができず、十分満
足すべき嵩高な織編物を得ることが困難である。2. Description of the Related Art Conventionally, a method of using hollow fiber yarn is known as one of methods for obtaining a bulky and lightweight woven or knitted fabric. In the case of a hollow fiber, the hollowness is limited to about 20%, and since the bending stress is large, the woven or knitted product obtained can be lightened, but becomes soft in texture, and is also twisted by false twisting. High bulkiness cannot be imparted, and it is difficult to obtain a sufficiently satisfactory bulky woven or knitted fabric.
【０００３】また、繊維自体の嵩高性を自己捲縮性によ
って発現させる渦巻形繊維断面のポリエステル繊維が特
開昭５４−９６１１８号公報及び特開昭５４−９６１１
８号公報で開示されているが、この渦巻形繊維断面ポリ
エステル繊維は、その製造には、高速紡糸条件を必要と
し、製糸工程上の安定性に欠け、得られる繊維の物性も
残留伸度が高く、嵩高性で軽量な織編物を得るための繊
維としては、十分なものとはいえない。Further, a polyester fiber having a spiral-shaped fiber cross section, which expresses the bulkiness of the fiber itself by self-crimping property, is disclosed in JP-A-54-96118 and JP-A-54-9611.
Although disclosed in Japanese Patent Publication No. 8), this spiral-shaped cross-section polyester fiber requires high-speed spinning conditions for its production, lacks stability in the spinning process, and has physical properties and residual elongation of the obtained fiber. It is not sufficient as a fiber for obtaining a woven or knitted fabric which is high, bulky and lightweight.
【０００４】[0004]
【発明が解決しようとする課題】本発明は、嵩高性、軽
量性に優れ、かつ風合い的にも優れた渦巻形繊維断面の
自己捲縮性ポリエステルマルチフィラメント糸を紡糸・
延伸の一工程で安定かつ低コストで提供し、かつ仮撚加
工等の後加工を施しても性能が失われない自己捲縮性ポ
リエステルマルチフィラメント糸を提供することを目的
とする。DISCLOSURE OF THE INVENTION The present invention spins a self-crimpable polyester multifilament yarn having a spiral-shaped fiber cross section, which is excellent in bulkiness, lightness and texture.
An object of the present invention is to provide a self-crimpable polyester multifilament yarn which is stably and inexpensively provided in one step of drawing and does not lose its performance even after post-processing such as false twisting.
【０００５】[0005]
【課題を解決するための手段】本発明は、主たる繰り返
し単位がエチレンテレフタレートであるポリエステル重
合体を溶融紡糸して全フィラメントに対し９０％以上の
フィラメントが渦巻形繊維断面を有するマルチフィラメ
ント糸を製造するに際し、固有粘度［η］が０．６５以
上のポリエステル重合体を、幅０．０５〜０．１２ｍｍ
のスリットからなる渦巻状の孔が同一向きに複数配置さ
れた紡糸口金を用いて紡出した後、紡出糸条を、糸条に
対し直角方向より各繊維の渦巻形の最外部側へ温度１０
〜３０℃、風速３０〜６０ｍ／分の気体流を当ててガラ
ス転移点以下の温度に冷却し、引き続き、内部雰囲気温
度が１７０〜１９０℃の円筒状加熱装置を通して非接触
加熱延伸し、３５００ｍ／分以上の速度で巻取ることを
特徴とする自己捲縮性ポリエステルマルチフィラメント
糸の製造方法にある。According to the present invention, a polyester polymer whose main repeating unit is ethylene terephthalate is melt-spun to produce a multifilament yarn having 90% or more of all filaments having a spiral fiber cross section. In doing so, a polyester polymer having an intrinsic viscosity [η] of 0.65 or more, with a width of 0.05 to 0.12 mm
After spinning using a spinneret in which multiple spiral holes made of slits are arranged in the same direction, the spun yarn is heated to the outermost side of the spiral shape of each fiber from the direction perpendicular to the yarn. 10
-30 ° C, wind velocity of 30-60 m / min is applied to cool to a temperature not higher than the glass transition point, and subsequently, non-contact heating drawing is performed through a cylindrical heating device having an internal atmosphere temperature of 170-190 ° C to 3500 m / min. A method for producing a self-crimpable polyester multifilament yarn, which comprises winding at a speed of not less than a minute.
【０００６】本発明において用いるポリエステル重合体
は、主たる繰り返し単位がエチレンテレフタレートであ
るポリエステルであり、他の成分としてイソフタル酸、
アジピン酸、セバシン酸、ナフタレンジカルボン酸、ジ
エチレングリコール、プロピレングリコール、ネオペン
チルグリコール等が共重合されていてもよく、また、ポ
リエステル中に制電剤、難燃剤、艶消し剤等が添加され
ていてもよい。本発明においては、かかるポリエステル
の固有粘度［η］が０．６５以上の重合体を繊維断面形
状の形成上から用いる。The polyester polymer used in the present invention is a polyester whose main repeating unit is ethylene terephthalate, and isophthalic acid as another component,
Adipic acid, sebacic acid, naphthalene dicarboxylic acid, diethylene glycol, propylene glycol, neopentyl glycol and the like may be copolymerized, and even if an antistatic agent, a flame retardant, a matting agent, etc. are added to the polyester. Good. In the present invention, a polymer having an intrinsic viscosity [η] of the polyester of 0.65 or more is used in order to form the fiber cross-sectional shape.
【０００７】本発明においては、ポリエステル重合体を
溶融紡糸する際、幅０．０５〜０．１２ｍｍのスリット
からなる渦巻状の孔が同一向きに複数配置された紡糸口
金を用いることが必要である。図２に孔の形状を示す
が、孔は、幅０．０５〜０．１２ｍｍのスリットが渦巻
状となって単一の孔が形成され、孔は、各孔の渦巻の向
きを同一の向きにして任意の複数箇が配置された紡糸口
金を用いる。スリットの幅が０．０５ｍｍ未満では、紡
糸口金自体の製作が困難であり、０．１２ｍｍを超える
と、渦巻形繊維断面を有するフィラメントが全フィラメ
ントに対し９０％以上とならず、中空断面のフィラメン
トが生じ、またその比率が高くなる。かかる中空断面の
フィラメントの比率の増加は、フィラメントの空間占有
面積が減少し、マルチフィラメントとしての嵩高性を低
下させる。In the present invention, when melt-spinning a polyester polymer, it is necessary to use a spinneret in which a plurality of spiral holes each having a slit having a width of 0.05 to 0.12 mm are arranged in the same direction. . The shape of the holes is shown in FIG. 2. The holes have a slit having a width of 0.05 to 0.12 mm in a spiral shape to form a single hole, and the holes have the same spiral direction. Then, a spinneret in which an arbitrary plurality of pieces are arranged is used. If the width of the slit is less than 0.05 mm, it is difficult to manufacture the spinneret itself. Occurs, and the ratio becomes high. The increase in the ratio of the filaments having the hollow cross section reduces the space occupying area of the filaments and reduces the bulkiness of the multifilament.
【０００８】溶融紡糸は、通常の公知の方法により行わ
れるが、本発明においては、ポリエステル重合体を渦巻
状の孔が配置された紡糸口金より紡出した後、紡出糸条
の繊維の渦巻形の最外部側へ冷気体流を当て紡出糸条を
偏冷却することが必要である。即ち、本発明のにおいて
は、紡出糸条に対しほぼ直角方向より、各繊維の最短距
離にある渦巻形の最外部側へ温度１０〜３０℃、風速３
０〜６０ｍ／分の気体流を当てて糸条をガラス転移点以
下の温度に冷却する。気体流の当てる側が渦巻形の最外
部側の側面或いは渦巻形の最外部側の反対側であるとき
は、中空断面或いは偏平断面等の非渦巻断面のフィラメ
ントの比率が高くなる。Melt spinning is carried out by an ordinary known method. In the present invention, the polyester polymer is spun from a spinneret in which spiral holes are arranged, and then the fibers of the spun yarn are swirled. It is necessary to apply a cold gas flow to the outermost side of the shape to partially cool the spun yarn. That is, in the present invention, the temperature is 10 to 30 ° C. and the wind speed is 3 to the outermost side of the spiral shape at the shortest distance of each fiber from the direction substantially perpendicular to the spun yarn.
The yarn is cooled to a temperature below the glass transition point by applying a gas flow of 0 to 60 m / min. When the side to which the gas flow is applied is the outermost side surface of the spiral shape or the side opposite to the outermost side of the spiral shape, the ratio of filaments of the non-spiral section such as the hollow section or the flat section becomes high.
【０００９】本発明において、糸条の冷却の際の各繊維
への気体流を当てる方向を、図２にて便宜的に説明す
る。渦巻状の孔の渦巻形の最外部側へ当たる方向
（ア）、渦巻形の最外部側の側面へ当たる方向（イ）、
渦巻形の最外部側の反対側へ当たる方向（ウ）とすると
き、本発明においては、（ア）の方向の気体流とするこ
とが必要で、かかる（ア）の方向の気体流となるよう
に、予め紡糸口金での孔の配置方向を設定するか、また
は冷却装置での気体の流れ方向を調整する。In the present invention, the direction in which a gas flow is applied to each fiber when the yarn is cooled will be described with reference to FIG. The direction in which the spiral hole hits the outermost side of the spiral shape (a), the direction in which it hits the outermost side surface of the spiral shape (a),
In the present invention, the gas flow in the direction (a) is required when the direction (c) is the direction opposite to the outermost side of the spiral shape, and the gas flow is in the direction (a). As described above, the arrangement direction of the holes in the spinneret is set in advance, or the flow direction of the gas in the cooling device is adjusted.
【００１０】気体流は、温度が１０℃未満では、急激な
冷却により糸切れが多発し、３０℃を超えると、十分な
冷却が行われず、捲縮発現性の低下及び繊度斑を生ず
る。また、風速が３０ｍ／分未満では、十分な冷却が行
われず、６０ｍ／分を超えると、繊度斑、糸切れが多発
する。When the temperature of the gas flow is less than 10 ° C., the yarn breaks frequently due to rapid cooling, and when it exceeds 30 ° C., sufficient cooling is not performed, and the crimp developability is deteriorated and fineness unevenness occurs. Further, if the wind speed is less than 30 m / min, sufficient cooling is not performed, and if it exceeds 60 m / min, unevenness in fineness and yarn breakage occur frequently.
【００１１】また、本発明においては、冷却された糸条
を、引き続き、内部雰囲気温度が１７０〜１９０℃の円
筒状加熱装置を通し装置通過中に非接触加熱延伸して、
３５００ｍ／分以上の速度で巻取ることが必要である。
非接触加熱延伸に用いられる円筒状加熱装置としては、
糸条が加熱体に直接接触しない非接触加熱装置であれば
よいが、本発明においては、十分な熱付与、エネルギー
効率の向上、低温随伴流の低減の面から、好ましくは内
径が２０〜４０ｍｍ、筒長が１．０〜２．０ｍ、筒出口
内径が８〜２０ｍｍの加熱筒を備えた加熱装置が用いら
れる。Further, in the present invention, the cooled yarn is continuously passed through a cylindrical heating device having an internal atmosphere temperature of 170 to 190 ° C. and is non-contact heated and drawn while passing through the device,
It is necessary to wind at a speed of 3500 m / min or more.
As a cylindrical heating device used for non-contact heating stretching,
The yarn may be a non-contact heating device in which the yarn does not come into direct contact with the heating body, but in the present invention, the inner diameter is preferably 20 to 40 mm from the viewpoint of sufficient heat application, improvement of energy efficiency, and reduction of low temperature accompanying flow. A heating device including a heating cylinder having a cylinder length of 1.0 to 2.0 m and a cylinder outlet inner diameter of 8 to 20 mm is used.
【００１２】巻取り速度は、加熱装置の加熱域の温度を
一定とした場合、その速度の上昇と共に高強力、低伸度
の傾向を示すが、１７０〜１９０℃の内部雰囲気温度で
あるときは、３５００ｍ／分以上の速度とすることによ
り、実用に好適な繊維物性と目的とする自己捲縮性を保
持するマルチフィラメントを得ることができる。When the temperature of the heating region of the heating device is kept constant, the winding speed tends to have high strength and low elongation as the speed increases, but when the internal atmospheric temperature is 170 to 190 ° C. By setting the speed to 3500 m / min or more, it is possible to obtain a multifilament that retains the fiber physical properties suitable for practical use and the desired self-crimping property.
【００１３】本発明においては、紡糸と延伸が一連の一
工程でマルチフィラメント糸が製造されるが、用いられ
る紡糸・延伸装置の一例を図３に示す。図３において、
渦巻状孔配置の紡糸口金１から溶融紡出された紡出糸条
２は、冷却装置３での気体流によって冷却され、引き続
き円筒状加熱装置４の加熱域へ導入され非接触加熱延伸
される。延伸された糸条は、油剤付与装置５により集束
及び油剤付与され、引取りローラー６、７を経てワイン
ダー９で巻取られる。引取りローラー６、７間には、イ
ンターレース装置８が設けられ糸条に交絡を与えると共
に巻形状態の安定化が行われる。In the present invention, a multifilament yarn is manufactured by a series of steps of spinning and drawing. An example of the spinning / drawing apparatus used is shown in FIG. In FIG.
The spun yarn 2 melt-spun from the spinneret 1 having the spiral hole arrangement is cooled by the gas flow in the cooling device 3, and subsequently introduced into the heating area of the cylindrical heating device 4 and subjected to non-contact heating drawing. . The stretched yarn is bundled and applied with the oil agent by the oil agent applying device 5, passed through the take-up rollers 6 and 7, and wound up by the winder 9. An interlacing device 8 is provided between the take-up rollers 6 and 7 to entangle the yarn and stabilize the winding state.
【００１４】本発明によれば、図１に示すように、全フ
ィラメントに対し９０％以上のフィラメントが渦巻形繊
維断面を有するポリエステルマルチフィラメント糸が安
定かつ低コストで製造され、各フィラメントは、その繊
維断面が渦巻形繊維断面であることによりスパイラル状
の捲縮を生じ、このスパイラル状の捲縮に基づき、マル
チフィラメント糸として、高い嵩高性と軽量性を奏する
自己捲縮性を有するマルチフィラメント糸を生産性よく
製造しうる。According to the present invention, as shown in FIG. 1, a polyester multifilament yarn having 90% or more of all filaments having a spiral fiber cross section is produced stably and at low cost. A spiral crimp is generated due to the fiber cross section being a spiral fiber cross section, and based on this spiral crimp, as a multifilament yarn, a multifilament yarn having self-crimping properties that exhibits high bulkiness and lightness. Can be manufactured with high productivity.
【００１５】[0015]
【実施例】以下、本発明を実施例により具体的に説明す
る。なお、糸の各特性は次のとおり測定した。 強度、伸度：島津製作所社製オートグラフＳＤ−１００
Ｃ特形使用。試料長２０ｃｍ、引張速度２０ｃｍ／分 沸水収縮率：綛法、試料長１ｍ×１０回巻ｃｍ、測定荷
重０．０３ｇ／ｄ、１００℃×３０分沸水処理後の収縮
率。 糸斑 ：計測器工業社製糸斑試験機ＫＥＴ−８０Ｃ
使用。糸速１５ｍ／分、モード１／２Ｉｎｅｒｔ、測定
時間１分 嵩高性 ：試料を綛状に取り一定荷重をかけたときの
体積をＶ（ｃｍ3）、試 料の重量をＷ
（ｇ）とし、次式で求めた。嵩高性（ｃｍ3／ｇ）＝Ｖ
（ｃｍ3）／Ｗ（ｇ） 毛羽 ：目視判定。 工程安定性：良好から不良までの順に○、△、×で評
価。EXAMPLES The present invention will be specifically described below with reference to examples. Each characteristic of the yarn was measured as follows. Strength and elongation: Shimadzu Corporation Autograph SD-100
Uses C special shape. Sample length 20 cm, Tensile speed 20 cm / min. Boiling water shrinkage: Soil method, sample length 1 m × 10 winding cm, measuring load 0.03 g / d, shrinkage after boiling water treatment at 100 ° C. × 30 min. Thread unevenness: Thread unevenness tester KET-80C manufactured by Keisokuki Kogyo Co., Ltd.
use. Yarn speed 15 m / min, Mode 1/2 Inert, measurement time 1 min Bulkiness: V (cm 3 ) is the volume when a constant load is applied to the sample, and W is the weight of the sample.
(G) and calculated by the following formula. Bulkiness (cm 3 / g) = V
(Cm 3 ) / W (g) Fluff: visually determined. Process stability: ◯, Δ, and x are evaluated in the order from good to bad.
【００１６】（実施例１〜３、比較例１〜４）固有粘度
［η］が０．６６のポリエチレンテレフタレートを、図
３に示す紡糸・延伸装置を用いて、渦巻状孔を３６個有
する紡糸口金を用い、紡糸温度２９０℃で紡糸口金より
紡出した。紡出糸条の冷却は、横吹き型冷却装置を用
い、２１℃、６５％ＲＨの空気を１ｍの長さにわたっ
て、糸条の温度を８０℃以下に冷却した。引き続き冷却
糸条を円筒状加熱装置に導入し、装置内で非接触加熱延
伸した後、ガイドオイリング方式により油剤を付与し、
２個の引取りローラーを介してワインダーで巻取った。
２個の引取りローラー間にはインターレース装置を設け
空気圧４ｋｇ／ｃｍ2で交絡処理した。円筒状加熱装置
は、内径２８ｃｍ、筒長１．５ｍ、筒出口内径１０ｍｍ
の加熱筒を備えた加熱装置を用いた。得られたマルチフ
ィラメント糸は、７５デニール３６フィラメントであ
り、マルチフィラメント糸の製造条件、糸の物性、嵩高
性、製糸安定性を表１に示した。なお、冷却風の吹き付
け方向は、図２で説明の符号の方向に吹き付けた。Examples 1 to 3 and Comparative Examples 1 to 4 Polyethylene terephthalate having an intrinsic viscosity [η] of 0.66 was spun by using the spinning / drawing apparatus shown in FIG. 3 and having 36 spiral holes. Using a spinneret, spinning was performed from the spinneret at a spinning temperature of 290 ° C. For the cooling of the spun yarn, a side-blow cooling device was used, and the temperature of the yarn was cooled to 80 ° C. or lower with air at 21 ° C. and 65% RH over a length of 1 m. Subsequently, the cooling yarn was introduced into the cylindrical heating device, and after non-contact heating and drawing in the device, an oil agent was applied by the guide oiling method,
It was wound with a winder through two take-up rollers.
An interlacing device was provided between the two take-up rollers to perform an entanglement treatment with an air pressure of 4 kg / cm 2 . The cylindrical heating device has an inner diameter of 28 cm, a cylinder length of 1.5 m, and a cylinder outlet inner diameter of 10 mm.
The heating device provided with the heating cylinder of No. 1 was used. The obtained multifilament yarn was 75 denier 36 filaments, and Table 1 shows the production conditions of the multifilament yarn, the physical properties of the yarn, the bulkiness, and the spinning stability. The cooling air was blown in the direction indicated by the reference numeral in FIG.
【００１７】（比較例５）実施例１において、渦巻状孔
を３６個有する紡糸口金に代えて直径０．２５ｍｍの円
形孔を３６個有する紡糸口金を用いた以外は実施例１と
同様にして円形繊維断面のマルチフィラメント糸を得
た。得られたマルチフィラメント糸の製造条件、糸の物
性、嵩高性、製糸安定性を表１に示した。(Comparative Example 5) In the same manner as in Example 1 except that a spinneret having 36 circular holes with a diameter of 0.25 mm was used instead of the spinneret having 36 spiral holes. A multifilament yarn having a circular fiber cross section was obtained. Table 1 shows the production conditions, physical properties, bulkiness, and spinning stability of the obtained multifilament yarn.
【００１８】以上の実施例及び比較例において、実施例
１〜３は、巻取速度を変更したものであり、いずれも嵩
高性、工程安定性が良好であった。比較例１は、紡糸口
金の孔のスリット幅を変更したものであり、スリット幅
が大きくなると中空断面フィラメントが４０％も生じ、
嵩高性が低下した。また仮撚加工での断面変形があり仮
撚加工糸での嵩高性も低下した。比較例２は、加熱装置
での温度を２００℃としたものであるが、温度が高くな
ると自己捲縮発現性能が損なわれ沸水収縮率が低下し嵩
高性が低下した。また、比較例３〜４は、紡出糸条への
冷却風の吹き付け方向を変更したものであるが、いずれ
も嵩高性が劣り、製糸安定性も不良であった。In the above Examples and Comparative Examples, Examples 1 to 3 were different in winding speed, and all had good bulkiness and process stability. In Comparative Example 1, the slit width of the holes of the spinneret was changed, and as the slit width increased, 40% of hollow cross-section filaments were produced,
The bulkiness decreased. In addition, the cross-section was deformed during false twisting, and the bulkiness of the false twisted yarn was also reduced. In Comparative Example 2, the temperature in the heating device was set to 200 ° C. However, when the temperature was increased, the self-crimping expression performance was impaired, the boiling water shrinkage ratio was lowered, and the bulkiness was lowered. Further, in Comparative Examples 3 to 4, the blowing direction of the cooling air to the spun yarn was changed, but all of them had poor bulkiness and poor spinning stability.
【００１９】[0019]
【表１】 [Table 1]
【００２０】[0020]
【発明の効果】本発明により得られる自己捲縮性ポリエ
ステルマルチフィラメント糸は、渦巻形繊維断面のフィ
ラメントの偏冷却及び非接触加熱延伸により、自己捲縮
発現能力が著しく増大し、嵩高性、軽量性に優れ、風合
い的にもソフト感に優れたマルチフィラメント糸であ
る。しかも仮撚加工等の後加工でもそれらの性能低下が
なく、また、仮撚加工等の加工工程や製織、製編工程で
の工程通過性がよく、織編物においても優れた嵩高性、
軽量性、ソフトな風合いを保持するものである。従い、
本発明により得られる自己捲縮性ポリエステルマルチフ
ィラメント糸は、衣料用、インテリア材用、自動車内装
材等の織編物の素材として好適なるものである。EFFECT OF THE INVENTION The self-crimping polyester multifilament yarn obtained by the present invention has a significantly increased self-crimping expression ability by bulk cooling and non-contact heat drawing of the spiral cross-section filament, and is bulky and lightweight. It is a multifilament yarn that is excellent in texture and soft in texture. Moreover, the post-processing such as false twisting does not deteriorate their performance, and the processability in false twisting and other processing steps, weaving, and knitting is good, and the bulkiness of the woven and knitted fabric is excellent.
It is lightweight and retains a soft texture. Obey,
The self-crimpable polyester multifilament yarn obtained by the present invention is suitable as a material for woven or knitted materials such as clothes, interior materials, and automobile interior materials.
【図１】本発明の自己捲縮性ポリエステルマルチフィラ
メント糸の一例の繊維断面図である。FIG. 1 is a fiber cross-sectional view of an example of a self-crimpable polyester multifilament yarn of the present invention.
【図２】本発明で用いる紡糸口金の孔の平面図である。FIG. 2 is a plan view of holes in a spinneret used in the present invention.
【図３】本発明で用いる紡糸・延伸装置の一例の概略図
である。FIG. 3 is a schematic view of an example of a spinning / drawing device used in the present invention.
ア 冷気体の流れ方向 イ 冷気体の流れ方向 ウ 冷気体の流れ方向 １ 紡糸口金 ２ 紡出糸条 ３ 冷却装置 ４ 円筒状加熱装置 ５ 油剤付与装置 ６ 引取りローラー ７ 引取りローラー ８ インターレース装置 ９ ワインダー A Flow direction of cold gas a Flow direction of cold gas c Flow direction of cold gas 1 Spinneret 2 Spinning yarn 3 Cooling device 4 Cylindrical heating device 5 Oil agent applying device 6 Take-off roller 7 Take-off roller 8 Interlace device 9 Winder
Claims (2)
レートであるポリエステル重合体を溶融紡糸して全フィ
ラメントに対し９０％以上のフィラメントが渦巻形繊維
断面を有するマルチフィラメント糸を製造するに際し、
固有粘度［η］が０．６５以上のポリエステル重合体
を、幅０．０５〜０．１２ｍｍのスリットからなる渦巻
状の孔が同一向きに複数配置された紡糸口金を用いて紡
出した後、紡出糸条を、糸条に対し直角方向より各繊維
の渦巻形の最外部側へ温度１０〜３０℃、風速３０〜６
０ｍ／分の気体流を当ててガラス転移点以下の温度に冷
却し、引き続き、内部雰囲気温度が１７０〜１９０℃の
円筒状加熱装置を通して非接触加熱延伸し、３５００ｍ
／分以上の速度で巻取ることを特徴とする自己捲縮性ポ
リエステルマルチフィラメント糸の製造方法。1. When melt-spinning a polyester polymer whose main repeating unit is ethylene terephthalate to produce a multifilament yarn having 90% or more of all filaments having a spiral fiber cross section,
After spinning a polyester polymer having an intrinsic viscosity [η] of 0.65 or more using a spinneret in which a plurality of spiral holes each having a slit having a width of 0.05 to 0.12 mm are arranged in the same direction, The spun yarn is placed at the outermost side of the spiral shape of each fiber in the direction perpendicular to the yarn at a temperature of 10 to 30 ° C. and a wind speed of 30 to 6
A gas flow of 0 m / min was applied to cool to a temperature below the glass transition point, and subsequently, non-contact heating drawing was performed through a cylindrical heating device having an internal atmosphere temperature of 170 to 190 ° C. to obtain 3500 m.
A method for producing a self-crimpable polyester multifilament yarn, which comprises winding at a speed of not less than / min.
ｍｍ、筒長が１．０〜２．０ｍ、筒出口内径が８〜２０
ｍｍの加熱筒を備えた加熱装置を用いる請求項１記載の
自己捲縮性ポリエステルマルチフィラメント糸の製造方
法。2. The cylindrical heating device has an inner diameter of 20 to 40.
mm, cylinder length 1.0 to 2.0 m, cylinder outlet inner diameter 8 to 20
The method for producing a self-crimpable polyester multifilament yarn according to claim 1, wherein a heating device provided with a heating cylinder of mm is used.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5684694A JPH07243123A (en) | 1994-03-03 | 1994-03-03 | Production of self-crimping polyester multifilament |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5684694A JPH07243123A (en) | 1994-03-03 | 1994-03-03 | Production of self-crimping polyester multifilament |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH07243123A true JPH07243123A (en) | 1995-09-19 |
Family
ID=13038785
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5684694A Pending JPH07243123A (en) | 1994-03-03 | 1994-03-03 | Production of self-crimping polyester multifilament |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH07243123A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100490790B1 (en) * | 1997-08-11 | 2005-09-12 | 주식회사 휴비스 | Method for manufacturing single component hollow fiber crimped fiber using capillary cooling device |
-
1994
- 1994-03-03 JP JP5684694A patent/JPH07243123A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100490790B1 (en) * | 1997-08-11 | 2005-09-12 | 주식회사 휴비스 | Method for manufacturing single component hollow fiber crimped fiber using capillary cooling device |
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