JPH03213534A - Covered elastic fiber and its preparation - Google Patents

Covered elastic fiber and its preparation

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Publication number
JPH03213534A
JPH03213534A JP313290A JP313290A JPH03213534A JP H03213534 A JPH03213534 A JP H03213534A JP 313290 A JP313290 A JP 313290A JP 313290 A JP313290 A JP 313290A JP H03213534 A JPH03213534 A JP H03213534A
Authority
JP
Japan
Prior art keywords
yarn
twisting
false
elastic yarn
elastic
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
Application number
JP313290A
Other languages
Japanese (ja)
Other versions
JP2935043B2 (en
Inventor
Takeshi Kimura
木村 雄志
Shigeki Morimoto
茂樹 森本
Shigeyoshi Fujitani
藤谷 成良
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Du Pont Toray Co Ltd
Original Assignee
Du Pont Toray Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Du Pont Toray Co Ltd filed Critical Du Pont Toray Co Ltd
Priority to JP313290A priority Critical patent/JP2935043B2/en
Publication of JPH03213534A publication Critical patent/JPH03213534A/en
Application granted granted Critical
Publication of JP2935043B2 publication Critical patent/JP2935043B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

PURPOSE:To prepare the subject elastic fiber alternately having integrally bond fiber portions and portions expanded in arch-like shapes by subjecting an elongated elastic fiber and a thermoplastic synthetic fiber filament to a first twisting process and subsequently to a false-twisting process. CONSTITUTION:An elastic fiber 1 such as a polyurethane elastic fiber preferably having a fineness of 10-70 denier is delivered from a fiber-wound tube 3 loaded on surface-driven rollers 4, 4' and elongated between the roller 4 and a feed roller 5 rotated at a high rate. The elongated elastic fiber 1 is paralleled with a thermoplastic synthetic fiber filament 2 such as a polyamide fiber preferably having a fineness of 20-210 denier with the roller 5, followed by subjecting the paralleled fibers to a first twisting treatment and winding the first twisted fibers on a pirn 8 through a traveler 6. The first twisted fibers are fed into a false-twisting machine, false-twisted and subsequently doubled to provide the objective elastic yarn.

Description

【発明の詳細な説明】 [産業上の利用分野] 本発明は、染め重用に適した被覆弾性糸およびその製造
方法に係り、より詳しくは、先より未解撚仮撚加工後、
双糸合撚することによって、パッケージ染色の層別染着
差およびリワインド時のポリウレタン弾性糸の糸切れを
回避させる被覆弾性糸およびその製造方法に関するもの
である。
[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a coated elastic yarn suitable for heavy dyeing and a method for producing the same.
The present invention relates to a covered elastic yarn that avoids layer-by-layer dyeing differences in package dyeing and breakage of polyurethane elastic yarn during rewinding by double-twisting, and a method for manufacturing the same.

[従来の技術] 被覆弾性糸の染色方法としては、従来より総状詰め込み
パッケージ染色が採用されており、総状噴射式や、チー
ズ、コーン巻き染色は実施されていなかった。
[Prior Art] Conventionally, as a dyeing method for coated elastic yarns, general filling package dyeing has been employed, and general jetting, cheese, and corn wrapping dyeing have not been carried out.

上記の詰め込みパッケージ染色の場合も、弾性糸の有す
る伸縮性によって総巻量に制約を受け、また染色後の総
の乾燥程度の差や、エクスパンダ−不足等により、リワ
インド工程において弾性糸が切断するという問題を有し
ていた。
In the case of the above-mentioned packed package dyeing, the total winding amount is limited by the elasticity of the elastic yarn, and due to differences in the degree of drying after dyeing, lack of expanders, etc., the elastic yarn may be cut during the rewinding process. I had the problem of doing so.

仮撚被覆弾性糸については、特公昭49−9427号公
報、同50−28536号号公報、同53−42811
号公報、特開昭60−23+836号公報、特公昭42
−25511号公報、特開昭48−33143号公報等
により知られている。
Regarding false-twist coated elastic yarns, see Japanese Patent Publication No. 49-9427, Japanese Patent Publication No. 50-28536, Japanese Patent Publication No. 53-42811.
Publication No. 60-23+836, Special Publication No. 1973
This is known from Japanese Patent Laid-Open No. 48-33143, etc.

このうち前半の3つの特許は、弾性糸と熱可塑性合成フ
ィラメント糸とを芯/鞘状に引揃えて複合板ヨリ加工し
、弾性糸の周りにケン縮マルチフィラメント糸が実質無
ヨリで合理的に芯/鞘状に被覆する技術であって、仮撚
セット温度の設定範囲を低目に設定することによって弾
性糸の劣化を阻止し、弾性糸のもつ良好な弾性を維持す
るものである。しかしながら、これらの技術においては
、仮ヨリケン縮糸が芯糸の弾性糸を拘束しようとする作
用が緩くなるため、被覆性が低下するという傾向があり
、リワインドすればさらに被覆性が低下するという欠点
を有していた。
The first three patents are based on a composite plate twisting process in which elastic threads and thermoplastic synthetic filament threads are arranged in a core/sheath shape, and the curled multifilament threads are wrapped around the elastic threads in a rational manner with virtually no twisting. This is a technique in which the elastic yarn is coated in a core/sheath shape, and the deterioration of the elastic yarn is prevented by setting the setting range of the false twisting temperature to be low, and the good elasticity of the elastic yarn is maintained. However, in these techniques, the temporary curled yarn has a tendency to reduce its covering properties because the effect of restraining the elastic yarn of the core yarn becomes loose, and the disadvantage is that the covering properties are further reduced when rewinding. It had

また、後半の3つの特許は、弾性糸と熱可塑性合成繊維
を先ヨリで実ヨリを付与した後、通常の仮ヨリ温度で解
撚仮ヨリする技術に関するものであり、高い嵩高性が得
られる。しかしながら、この場合も同様に被覆性が実質
的に減少する欠点がある。
In addition, the latter three patents relate to a technology in which elastic yarns and thermoplastic synthetic fibers are first twisted to give a real twist, and then untwisted and temporarily twisted at a normal temporary twisting temperature, resulting in high bulkiness. . However, this also has the disadvantage that the coverage is substantially reduced.

しかも、両技術とも糸染めに関しては何ら示されていな
い。
Furthermore, both techniques do not indicate anything regarding yarn dyeing.

[発明が解決しようとする課題] 上記した従来の仮ヨリ被覆弾性糸は、いずれもポリウレ
タン弾性糸と熱可塑性合成繊維とのなじみや絡合性が不
十分なため、染色準備工程でガイドなどでしごかれるこ
とによって、被覆性が低下したり、芯部のポリウレタン
弾性糸が切断するという欠点を有していた。
[Problems to be Solved by the Invention] All of the above-mentioned conventional temporary twist-coated elastic yarns have insufficient compatibility and entanglement with polyurethane elastic yarns and thermoplastic synthetic fibers, so they cannot be used as guides in the dyeing preparation process. When squeezed, the covering property deteriorates and the core polyurethane elastic thread breaks.

本発明の目的は、このような従来の欠点を排除し、各工
程でしごかれても、芯糸と鞘糸とのずれが生じにくく、
被覆性の低下が少なく、また工程通過性が良好で、さら
にはパッケージ染色の層別染色差が少なく均一染色が可
能で、かつ以後のリワインド時に弾性糸切れの少ない被
覆弾性糸を提供せんとするものである。
The purpose of the present invention is to eliminate such conventional drawbacks, and to make it difficult for the core yarn and sheath yarn to become misaligned even when they are squeezed in each process.
To provide a coated elastic yarn that has little deterioration in coverage, has good process passability, can be dyed uniformly with little difference in dyeing between layers in package dyeing, and has less elastic yarn breakage during subsequent rewinding. It is something.

[課題を解決するための手段] 上記目的を達成するための本発明の構成は、伸長された
弾性糸と熱可塑性合成繊維フィラメント糸とが下撚が施
された状態において仮撚加工せしめられてなる下撚りが
施された仮撚被覆弾性糸を、合撚することによって、芯
部の弾性糸の間に熱可塑性合成繊維フィラメント糸が挟
持加熱されて各糸条が結合一体化されている部分と、芯
糸の弾性糸に対して鞘糸の熱可塑性合成繊維フィラメン
ト糸がアーチ状に膨出した嵩高部とを糸の長手方向に交
互に有していることを特徴とする被覆弾性糸である。
[Means for Solving the Problems] In order to achieve the above object, the present invention has a structure in which the elongated elastic yarn and the thermoplastic synthetic fiber filament yarn are false-twisted in a pre-twisted state. By twisting together the false-twisted coated elastic yarns that have been first twisted, the thermoplastic synthetic fiber filament yarn is sandwiched and heated between the elastic yarns in the core, and each yarn is bonded and integrated. and bulky parts in which the thermoplastic synthetic fiber filament yarn of the sheath yarn bulges in an arch shape with respect to the elastic yarn of the core yarn alternately in the longitudinal direction of the yarn. be.

以下、図面に示す実施例に基づいて本発明の被覆弾性糸
を説明する。
Hereinafter, the covered elastic yarn of the present invention will be explained based on examples shown in the drawings.

第1図は、本発明の一実施例よりなる被覆弾性糸の概略
図を示す。
FIG. 1 shows a schematic diagram of a coated elastic yarn according to an embodiment of the present invention.

第1図において、本発明の被覆弾性糸は、2本の弾性糸
1.1′が芯部に存在し、周縁部を構成する仮撚せしめ
られた熱可塑性合成繊維フィラメント糸2.2′が加熱
され、双糸合撚されている。
In FIG. 1, the coated elastic yarn of the present invention has two elastic yarns 1.1' in the core, and false twisted thermoplastic synthetic fiber filament yarns 2.2' constituting the peripheral edge. It is heated and double-stranded.

芯部を構成する弾性糸1は、元来下撚工程で熱可塑性合
成繊維フィラメント糸2と引揃えられた後下撚りが施さ
れるが、事後の仮撚加工を経た後に双糸合撚することに
より、被覆弾性糸を構成する各糸条が撚により結合一体
化されている部分と、芯糸の弾性糸1,1′ に対して
鞘糸の熱可塑性合成繊維フィラメント糸2,2′が遊離
してアーチ状に膨出した嵩高部とを糸の長手方向に交互
に有する被覆弾性糸となる。
The elastic yarn 1 constituting the core is originally aligned with the thermoplastic synthetic fiber filament yarn 2 in the pre-twisting process, and then pre-twisted, but after undergoing a post-false twisting process, it is double-twisted. As a result, the portions where each yarn composing the covered elastic yarn is twisted and integrated, and the thermoplastic synthetic fiber filament yarns 2, 2' of the sheath yarns are connected to the elastic yarns 1, 1' of the core yarns. The coated elastic yarn has loose, arch-shaped bulky parts alternately in the longitudinal direction of the yarn.

すなわち、加熱部と加熱部との間においては、熱可塑性
合成繊維フィラメント糸2と熱可塑性合成繊維フィラメ
ント糸2′が別方向にアーチ状にふくらんだ嵩高形状を
呈することになる。
That is, between the heating parts, the thermoplastic synthetic fiber filament yarn 2 and the thermoplastic synthetic fiber filament yarn 2' exhibit a bulky shape that swells in an arch shape in different directions.

つまり、本発明の被覆弾性糸の特徴は、芯部を形成する
弾性糸1.1.′の間に、熱可塑性合成繊維フィラメン
ト糸2.2′が加熱挟持されている部分と、弾性糸1.
1′と、熱可塑性合成繊維フィラメント糸2.2′とが
アーチ状に分離している部分とを交互に有しており、ス
トレッチやリラックス作用を受けた際、弾性糸1.1′
の間に、熱可塑性合成繊維フィラメント糸2.2′が加
熱挟持されている部分では、糸ずれが生ずることなく、
芯糸と鞘糸とが強固に結合されている。したがって、以
後、準備工程や編成工程等でしごかれても、引掛ったり
、ズしたり、芯糸の弾性糸切れを誘発する懸念はない。
In other words, the features of the covered elastic yarn of the present invention are as follows: 1.1. ', a portion where the thermoplastic synthetic fiber filament yarn 2.2' is heated and sandwiched, and an elastic yarn 1.2'.
1' and thermoplastic synthetic fiber filament yarn 2.2' are separated in an arch shape, and when subjected to stretching or relaxing action, the elastic yarn 1.1'
In the area where the thermoplastic synthetic fiber filament yarn 2.2' is heated and sandwiched between the two, no yarn displacement occurs.
The core thread and sheath thread are firmly connected. Therefore, even if it is squeezed in the preparation process, knitting process, etc. thereafter, there is no concern that it will get caught, slip, or cause elastic yarn breakage of the core yarn.

なお、本発明においては、下撚りの方向とは逆方向に、
かつ下撚数と略同数、もしくはそれ以下の撚数で合撚さ
れることが好ましい。
In addition, in the present invention, in the opposite direction to the direction of the first twist,
In addition, it is preferable that the number of twists is approximately the same as the number of first twists or less than the number of twists.

本発明で用いられる弾性糸には、ポリウレタン弾性糸、
ポリエステル弾性糸、ポリアミド弾性糸が含まれるが、
なかんずくポリウレタン弾性糸が広(用いられる。
The elastic threads used in the present invention include polyurethane elastic threads,
Includes polyester elastic yarn and polyamide elastic yarn,
Among other things, polyurethane elastic threads are widely used.

該ポリウレタン弾性糸は、モノフィラメント糸あるいは
マルチフィラメント糸のいずれでもよいが、伸長回復力
という点からすれば、モノフィラメント糸よりもマルチ
フィラメント糸の方が回復力が一般的に強く、より好ま
しい。
The polyurethane elastic yarn may be either a monofilament yarn or a multifilament yarn, but from the point of view of elongation recovery power, multifilament yarn generally has stronger recovery power than monofilament yarn and is therefore more preferable.

該ポリウレタン弾性糸のデニールは10〜70デニール
が好ましく、特にソフトな伸縮性が要求されるアウター
ウェアの水着、レオタードには20〜40デニールがよ
り好ましい。また、破断伸度は500%以上であること
が望ましい。
The denier of the polyurethane elastic yarn is preferably 10 to 70 deniers, and more preferably 20 to 40 deniers for outerwear such as swimsuits and leotards, which require particularly soft stretchability. Further, it is desirable that the elongation at break is 500% or more.

酸化チタン等の艶消し剤を少量含有するブライトもしく
は全く含有しないクリヤータイプが濃色染における均一
色を得るために望ましい。
A bright type containing a small amount of a matting agent such as titanium oxide or a clear type containing no matting agent at all is desirable in order to obtain a uniform color in deep dyeing.

また、本発明において熱可塑性合成繊維フィラメント糸
とは、ポリアミド、ポリエステル、アクリル、ポリプロ
ピレン、塩化ビニール系等のフィラメント糸であって、
これらの複合糸であってもよい。
Furthermore, in the present invention, the thermoplastic synthetic fiber filament yarn is a filament yarn made of polyamide, polyester, acrylic, polypropylene, vinyl chloride, etc.
A composite yarn of these may be used.

該熱可塑性合成繊維のトータルデニールは、20〜21
0デニールで、ソックス・タイツやストッキング用に2
0〜140デニール、インナーウェア用に30〜70デ
ニールおよびアウターウェア用に50〜210デニール
が好ましい。単糸デニールは通常0.1〜5.0デニー
ルであればよく、より好ましくは0.25〜3.0デニ
ールの範囲である。
The total denier of the thermoplastic synthetic fiber is 20 to 21
0 denier, 2 for socks, tights and stockings
0-140 denier, 30-70 denier for innerwear and 50-210 denier for outerwear are preferred. The denier of the single yarn may normally be from 0.1 to 5.0 denier, more preferably from 0.25 to 3.0 denier.

断面形状は、円形断面が通常であるが、万葉、三角形等
の異形断面でも良い。
The cross-sectional shape is usually a circular cross-section, but may also be an irregular cross-section such as a many-leaf shape or a triangular shape.

次に、本発明における被覆弾性糸の製造方法は、伸長さ
れた弾性糸と熱可塑性合成繊維フィラント糸とを引揃え
状態で下撚を施した後、仮撚加工をせしめて仮撚被覆弾
性糸となし、次いで、該仮撚被覆弾性糸を合撚すること
を特徴とするものである。
Next, in the method for producing a covered elastic yarn according to the present invention, the stretched elastic yarn and the thermoplastic synthetic fiber fillant yarn are first twisted in a aligned state, and then subjected to a false twisting process to form the false twisted covered elastic yarn. The method is characterized in that the false-twisted covered elastic yarn is then twisted together.

上記の被覆弾性糸の製造方法において、下撚工程での撚
数(T w )は300 T/M未満で、かつ弾性糸の
ドラフト倍率1.5〜4.5倍にドラフトしながら、熱
可塑性合成繊維フィラメント糸と加熱させることが好ま
しい。
In the above method for producing a covered elastic yarn, the number of twists (T w ) in the first twisting step is less than 300 T/M, and while drafting the elastic yarn at a draft magnification of 1.5 to 4.5 times, It is preferable to heat the synthetic fiber filament yarn.

また、仮撚加工工程で、仮撚の加熱方向は下撚と同一方
向であって、仮撚セット温度(Te)が140〜190
℃の範囲を満たし、かつ後記で定義する仮撚係数(k)
が20,000〜23,000とする条件を充足するこ
とが好ましい。
In addition, in the false twisting process, the heating direction of false twisting is the same direction as the first twisting, and the false twisting set temperature (Te) is 140 to 190.
False twist coefficient (k) that satisfies the range of °C and is defined below
It is preferable that the condition of 20,000 to 23,000 is satisfied.

次に、本発明において、仮撚加工工程に用いる仮撚係数
(k)は、次式で定義される。
Next, in the present invention, the false twisting coefficient (k) used in the false twisting process is defined by the following equation.

T=に、/”−ア7■ ここでDは熱可塑性合成繊維フィラメント糸のトータル
デニール、ρは上記繊維の比重、Tは仮撚数(T/M)
である。
T = ni, /”-A7■ Here, D is the total denier of the thermoplastic synthetic fiber filament yarn, ρ is the specific gravity of the above fiber, and T is the number of false twists (T/M)
It is.

さらに、前工程で得た仮撚被覆弾性糸の合撚工程におい
ては、下撚りとは逆方向に合撚することが重要である。
Furthermore, in the twisting step of the false twisted coated elastic yarn obtained in the previous step, it is important to twist the false twisted coated elastic yarn in the opposite direction to the first twisting.

また、同一仮撚加工工程でSより、2よりの各単糸の同
時加工からなる合撚方向は、S撚又は2撚のいずれでも
よく、合撚数Td (T/M)は下撚Tw300T/M
未満と同一もしくはそれ以下が望ましい。
In addition, the direction of twisting, which consists of simultaneous processing of each single yarn with two twists from S in the same false twisting process, may be either S twist or two twists, and the number of twists Td (T/M) is the first twist Tw300T. /M
Equal to or less than less is desirable.

以下、図面に基づき本発明の被覆弾性糸の製造方法につ
いて説明する。
Hereinafter, the method for manufacturing a covered elastic yarn of the present invention will be explained based on the drawings.

0 第2図、および第3図は、本発明の被覆弾性糸の製造方
法の一実施例を示す工程概略図であり、第2図は下撚工
程図で、第3図は仮撚加工工程図である。
0 Figures 2 and 3 are process schematic diagrams showing one embodiment of the method for producing covered elastic yarn of the present invention, Figure 2 is a preliminary twisting process diagram, and Figure 3 is a false twisting process diagram. It is a diagram.

第2図に示す下撚り工程図は、通常のリング撚糸機であ
って、弾性糸1の供給は、巻糸チューブ13と、その表
面駆動ローラ4.4′からなり表面駆動ローラ4.4′
を回転させることにより、一定の速度で弾性糸1が巻糸
チューブ3から繰り出される。繰り出された弾性糸1は
、表面駆動ローラ4.4′よりも速い周速で回転する送
り出しローラ5との間でドラフトがかけられ、一定の伸
長状態に引き伸ばされ、撚り掛はバルーニング機構の方
へ送り出され、リング7上のトラベラ6を経て、パーン
8に巻取られる。
The first twisting process diagram shown in FIG. 2 is a conventional ring twisting machine, in which the elastic yarn 1 is supplied from a winding tube 13 and its surface drive roller 4.4'.
By rotating the elastic thread 1, the elastic thread 1 is let out from the winding tube 3 at a constant speed. The let-out elastic yarn 1 is drafted between the feed-out roller 5, which rotates at a faster circumferential speed than the surface drive roller 4.4', and is stretched to a constant elongation state, and the twisting is done by the ballooning mechanism. It passes through the traveler 6 on the ring 7 and is wound onto the pirn 8.

一方、熱可塑性合成繊維フィラメント糸2の供給は、巻
糸体9から送り出しローラ5によって表面から解舒され
て繰り出され、前記の弾性糸1と送り出しローラ5で、
引揃えられて下撚りが掛けられる。
On the other hand, the thermoplastic synthetic fiber filament yarn 2 is supplied by being unwound from the surface of the winding body 9 by the feeding roller 5, and being fed by the elastic yarn 1 and the feeding roller 5.
The pieces are pulled together and the first twist is applied.

1 第3図で示される工程は、1段ヒータ付き仮撚加工機で
あって、第2図の工程で得た弾性糸1および熱可塑性合
成繊維フィラメント糸2からなる下撚糸(合撚糸)の供
給は、巻糸体8から第1−フィードローラ11によって
表面から解舒されて繰り出され、その間に糸道ガイド群
を経て張力調整装置10を介して、第1フィードローラ
11−に達する。この第1フイードローラ11と第2フ
ィードローラ1−4との間にヒーター12、仮撚スピン
ドル(又はスピナー)13を配して、適度な倍率で、か
つ仮撚スピンドル13にて任意の仮撚数を付与しヒータ
ー1−2にて任意の温度で熱固定する。
1 The process shown in Fig. 3 is a false twisting machine equipped with a one-stage heater, and the first twisted yarn (combined twisted yarn) consisting of the elastic yarn 1 and thermoplastic synthetic fiber filament yarn 2 obtained in the process of Fig. 2 is used. The yarn is unwound from the surface by the first feed roller 11 from the wound body 8 and is fed out, during which time it passes through the yarn path guide group, passes through the tension adjustment device 10, and reaches the first feed roller 11-. A heater 12 and a false-twisting spindle (or spinner) 13 are arranged between the first feed roller 11 and the second feed roller 1-4, and the false-twisting spindle 13 can perform false twisting at an appropriate magnification and at any desired number of false twists. is applied and heat-fixed at an arbitrary temperature using heater 1-2.

最後に第3フイードローラ(又は巻取りローラ)15と
第2フイードローラ14の間で適宜な倍率に伸長し、被
覆弾性糸16として巻き取る。
Finally, it is stretched to an appropriate magnification between the third feed roller (or winding roller) 15 and the second feed roller 14, and wound up as a covered elastic yarn 16.

なお、合撚工程については図示していないが、上記の仮
撚加工工程を経た仮撚被覆弾性糸を次に本発明において
は前記した如く、合撚工程にかけるものである。
Although the twisting process is not shown, the false-twist coated elastic yarn that has undergone the above-mentioned false twisting process is then subjected to the twisting process as described above in the present invention.

得られた被覆弾性糸の特記すべき性状は、2 ■ 下ヨリにより被覆され、仮撚加工で同一方向に加熱
されるため、弾性糸の劣化が僅少で、破断伸度が1−0
0%以下となる。
The properties of the obtained coated elastic yarn that should be noted are: 2. Since it is covered by the lower twist and heated in the same direction during false twisting, there is little deterioration of the elastic yarn, and the elongation at break is 1-0.
It becomes 0% or less.

■ 先ヨリ仮撚に共通して、実ヨリが弾性糸の延伸状態
にあるとき、充分な捲縮発現を得ることを妨げるため、
初期の捲縮伸びが少なくなっている。
■ In common with tip twist false twisting, when the actual twist is in the stretched state of the elastic yarn, it prevents sufficient crimp development.
Initial crimp elongation is reduced.

■ 仮撚加工による弾性糸と合繊が延伸/熱処理される
ため、弾性糸のストレッチパワーと沸騰水収縮率が減少
する。
■ Elastic yarns and synthetic fibers are stretched and heat treated by false twisting, which reduces the stretch power and boiling water shrinkage of elastic yarns.

■ ■の下ヨリがあり、交絡混繊(ヨリが密に集った部
分)され、バネ状(スプリングの復元力に似たもの)を
有するため、伸長回復応力が高い。
■■ It has a lower twist, is made of interlaced fibers (where the twists are densely gathered), and has a spring-like shape (similar to the restoring force of a spring), so it has a high elongation recovery stress.

■ 部分的に先ヨリ未解撚調で、交絡混繊の外観を呈し
、弾性糸への熱可塑性合成繊維フィラメント糸の被覆性
が大きな部分と反対に開繊した部分が交互に共存した特
徴ある形状を呈していることである。
■ Partially untwisted, it has the appearance of intertwined mixed fibers, and is characterized by the coexistence of alternating parts where the thermoplastic synthetic fiber filament yarn covers the elastic yarn with high coverage, and parts where the fibers are opened on the contrary. It means that it has a shape.

したがって、弾性糸と熱可塑性合成繊維フィラメント糸
を引揃えたのみの仮撚捲縮加工糸にあり3 がちな被覆性の低下は見られず、あたかもカバーリング
撚糸の如き被覆性を有するものとなる。
Therefore, there is no decrease in coverage, which is common with false-twisted crimped yarns that are simply made of elastic yarns and thermoplastic synthetic fiber filament yarns, and the yarn has coverage similar to that of covering twisted yarns. .

なお、仮撚方向は下撚の撚方向と同一とした法が、逆方
向仮撚やオーバー解撚仮撚加工糸に比べて、実質的に被
覆性が高目になる。
Note that the method in which the direction of false twisting is the same as the direction of twisting of the first twist provides substantially higher coverage than false-twisted yarns that are false-twisted in the opposite direction or over-untwisted.

次に、チーズ巻き密度と染着性の関係について述べる。Next, the relationship between cheese wrapping density and dyeability will be described.

本発明において、双糸合撚した後のチーズ巻き密度(ρ
)は0.3g/ad以下とすることが好ましい。
In the present invention, the cheese winding density (ρ
) is preferably 0.3 g/ad or less.

本発明における双糸合撚が単糸使いよりも抜群の均染性
が得られる。これは、チーズ巻き密度の差異による結果
であって、本発明における双糸合撚の巻き密度(ρ)は
染色前0.21〜0.27g / ad Cあったもの
が染色後0.32〜0.35g / adと増加したの
に対し、通常の単糸使いソフトチーズは染色前0.23
〜0.27g/c−であったものが、染色後0.38〜
0.41g/cイと増加し、巻量500gの外層と内層
に若干の染色差を生じた。さらに双糸合撚の構成を種々
組合せ−4 たところ、前段階の下撚/仮撚(上撚)条件の組合せを
、下ヨリ(Sより+Sより)/上ヨリZより、下ヨリ 
(Zより+Zより)/上ヨリSより、下ヨリ(Sより+
Zより)/上ヨリSより (又は下ヨリ (Sより+Z
より)/上ヨリZより)と変化させて得た最終被覆弾性
糸の性状はいずれも僅差であり、一方、後段階の双糸合
撚時の撚数(Td)を50.100.150.200.
250.300.350.400.500 T/Mと変
化させた場合は、Tdが150T/M以下であればチー
ズが形くずれし易く、また350T/M以上であればチ
ーズ形状の安定性は高いが、層別染着差が発生すること
が判明した。したがって、合撚数(Td)を200±5
0T/Mで染色時に適度の流量貫流作用が得られ、かつ
チーズ形くずれの発生を防ぎ好結果を得ることができる
In the present invention, the double thread plying provides superior level dyeing properties compared to using a single thread. This is a result of the difference in cheese winding density, and the winding density (ρ) of the double yarn plied twist in the present invention was 0.21 to 0.27 g/ad C before dyeing, but decreased to 0.32 to 0.32 g/ad C after dyeing. The amount increased to 0.35g/ad, while the amount of soft cheese made using regular single threads increased by 0.23g/ad before dyeing.
~0.27g/c- was 0.38~ after dyeing
The amount increased to 0.41 g/c, and there was a slight difference in dyeing between the outer layer and the inner layer with a winding amount of 500 g. Furthermore, various combinations of double yarn plying configurations were found.The combinations of the final twisting/false twisting (ply twisting) conditions in the previous stage were changed to bottom twist (from S + S), top twist from Z, and bottom twist.
(From Z + From Z) / From top, from S, from bottom (+ from S)
From Z)/Top from S (or from bottom (+Z from S)
The properties of the final coated elastic yarns obtained by changing the direction (from Z)/from top twist Z) are all very close to each other. 200.
When changing to 250.300.350.400.500 T/M, if Td is 150 T/M or less, the cheese will easily lose its shape, and if it is 350 T/M or more, the cheese shape will be highly stable. However, it was found that there were differences in dyeing depending on the layer. Therefore, the number of twists (Td) is 200±5
At 0 T/M, a suitable flow flow effect can be obtained during dyeing, and the occurrence of cheese shape deformation can be prevented and good results can be obtained.

本発明の被覆弾性糸は圧縮型パッケージ染色法の場合も
、適度な圧縮率を選択することによって採用することが
できる。
The coated elastic yarn of the present invention can also be used in the compression type package dyeing method by selecting an appropriate compression ratio.

上記したように、伸長された弾性糸と熱可塑性5 合成繊維フィラメント糸を下撚することは、後工程で仮
撚加工することにより、先ヨリ未解撚調で、交絡混繊の
外観を呈すると同時に、次いで双糸合撚を付与すること
によって、2本の弾性糸の間に熱可塑性合成繊維フィラ
メント糸を挟持加熱することができ、吹抜のチーズ染色
に供するソフトチーズ巻きおよび染色に安定して働くの
である。その際、適用すべき有効な条件は本発明の被覆
弾性糸の沸騰水収縮率(S)は7.0%以下、伸縮復元
率(CR)が55%以下であることが重要である。この
ような特性とするための手段は、本発明で規定する仮撚
温度設定によるものである。両特性ともチーズ染色時の
加工変化が小さく、チーズの層間差を生じないように働
く。チーズの巻き密度(ρ)を0.3g/cId以下と
することは、通常の弾性重大すのカバーリング撚糸の糸
条では不可能に近いものであったものが、弾性糸に仮撚
セットを付与したことと、熱可塑性合成繊維フィラメン
ト糸が双糸合撚でアーチ状の嵩高形状を呈することによ
って、被染物として染色液の貫通作用を6 助け、内層の圧縮化を妨げる。
As mentioned above, by first twisting the elongated elastic yarn and the thermoplastic 5 synthetic fiber filament yarn, by false twisting in the subsequent process, the first twist is untwisted, giving the appearance of an intertwined mixed fiber. At the same time, by applying double yarn ply twisting, the thermoplastic synthetic fiber filament yarn can be sandwiched and heated between two elastic yarns, making it stable for soft cheese wrapping and dyeing for use in blow-opening cheese dyeing. They work. In this case, it is important that the effective conditions to be applied are that the boiling water shrinkage rate (S) of the coated elastic yarn of the present invention is 7.0% or less, and the stretch recovery rate (CR) is 55% or less. The means for achieving such characteristics is by setting the false twisting temperature specified in the present invention. Both properties result in small processing changes during cheese dyeing, and work to prevent differences between layers of cheese. It was nearly impossible to reduce the winding density (ρ) of cheese to 0.3 g/cId or less using ordinary elastic yarn covering twisted yarn, but by applying a false twist set to elastic yarn. This and the fact that the thermoplastic synthetic fiber filament yarn has a bulky, arch-like shape due to double-twisted yarns help the dyeing liquid penetrate through the dyed object and prevent compression of the inner layer.

そして、上記した理由から、双糸合撚の染色チーズから
コーン巻き返し後、丸編や、織物で利用される際、双糸
合撚して得た2本の弾性糸が芯部にあって、熱可塑性合
成繊維フィラメント糸が互いに合撚、拡がりを有するア
ーチ状となるため、製編織時の通過特性がスムースでよ
く、得られた製品表面も平滑で、合繊光沢を有し、ソフ
ト風合になり易く働く。
For the above-mentioned reasons, when the dyed cheese of double threads is twisted and used for circular knitting or woven fabrics, the two elastic threads obtained by twisting the double threads are in the core. Since the thermoplastic synthetic fiber filament yarns are twisted together and spread out to form an arch shape, the passing properties during weaving are smooth and the resulting product surface is smooth, has a synthetic luster, and has a soft texture. Work easily.

次に、本発明を実施例によって具体的に説明するが、本
発明は何んらこれらに限定されるものではない。
Next, the present invention will be specifically explained with reference to examples, but the present invention is not limited to these in any way.

実施例1 ナイロン糸70デニール、34フイラメント、丸断面糸
(東し株式会社製、登録商標“アミラン”)と、第2図
(A)に示す弾性糸積極供給装置付の撚糸機を使用し、
ポリウレタン弾性糸はタイプ127.20デニール(東
し・デュポン株式会社製、登録商標“オペロン”)をド
ラフトを倍率3゜5倍に設定した。仮撚機は1ヒーター
/スピンド1フ ルタイプ(東芝機械■製、F−103)を使用し、次い
で通常のリング撚糸機を用いて双糸合撚した、それぞれ
の製造条件は第1表の通りに設定し、被覆弾性糸を得た
。また比較糸としてシングルカバーリング糸(使用原糸
は前出と同一、N7O−34−205を通常条件でウー
リーナイロン糸とした;8270−E、東し・デュポン
株式会社製、シングルカバードヤーン)を用いた。チー
ズ染め用ソフトフ巻きワインダー(神津製作所製;RT
ワインダー)および通常のチーズ染色機(株式会社日阪
製作所製; “LLC”型パッケージ染色機)を使用し
た。
Example 1 Using a nylon thread of 70 denier, 34 filament, round cross section thread (manufactured by Toshi Co., Ltd., registered trademark "Amiran") and a twisting machine equipped with an elastic thread active feeding device shown in Fig. 2 (A),
The polyurethane elastic thread was a type 127.20 denier (manufactured by DuPont Toshiba, registered trademark "Operon"), and the draft was set at a draft magnification of 3.degree. to 5.times. A false twisting machine of 1 heater/1 spindle type (manufactured by Toshiba Machine ■, F-103) was used, and then the twin yarns were twisted using a normal ring twisting machine.The manufacturing conditions for each are shown in Table 1. A coated elastic yarn was obtained. In addition, as a comparison yarn, a single covered yarn (the raw yarn used was the same as above, N7O-34-205 was used as a woolly nylon yarn under normal conditions; 8270-E, manufactured by Toshi DuPont Co., Ltd., single covered yarn) was used. Using. Soft winder for cheese dyeing (manufactured by Kozu Seisakusho; RT
winder) and a normal cheese dyeing machine (manufactured by Hisaka Seisakusho Co., Ltd.; "LLC" type package dyeing machine).

得れた被覆弾性糸の特性は、第1表の通りであった。第
1表から明らかなように、沸騰水収縮率が7.0%以下
、伸縮復元率が55%以下の被覆弾性糸の双糸合撚は、
いずれもチーズ均染性は良好であることが判る。ただし
、単糸使いでは、染上りチーズの巻き密度が増大してか
、均染性が若干低下している。
The properties of the obtained covered elastic yarn were as shown in Table 1. As is clear from Table 1, the double yarn plied twist of covered elastic yarn with a boiling water shrinkage rate of 7.0% or less and a stretch recovery rate of 55% or less,
It can be seen that the cheese level staining properties are good in all cases. However, when using a single yarn, the level dyeing performance slightly decreased, probably due to an increase in the winding density of the dyed cheese.

8 実施例2 熱可塑性合成繊維フィラメント糸はナイロン、ポリエス
テル、アクリル糸を使用し、ポリウレタン弾性糸は“オ
ペロン” (前出)タイプ別に用い、実施例1と同一工
程、機種にて実施した。
8 Example 2 The thermoplastic synthetic fiber filament yarns used were nylon, polyester, and acrylic yarns, and the polyurethane elastic yarns were used according to the "Operon" type (described above), and the experiment was carried out using the same process and model as in Example 1.

用いた各種の糸、撚糸製造条件および得られた被覆弾性
糸の特性は第2表のとおりであった。
The various yarns used, the twisting yarn production conditions, and the properties of the obtained covered elastic yarn are shown in Table 2.

第2表から明らかなように、素材によってナイロン糸よ
りヒートセット性の向上が見られる被覆弾性糸は沸騰水
収縮率および伸縮復元率が低目で比較的チーズ染色し易
いことが判る。このうち、低温セット性の良い“シルパ
ロン”ルミレット”等は顕著である。
As is clear from Table 2, coated elastic yarns, which have improved heat setting properties compared to nylon yarns depending on the material, have low boiling water shrinkage and stretch recovery rates, and are relatively easy to dye with cheese. Among these, "Silparon" and "Lumilet" have excellent low-temperature setting properties.

(以下、余白) 0 [発明の効果] 以上述べたように本発明によれば、下記のような効果を
奏することができる。
(Hereinafter, blank space) 0 [Effects of the Invention] As described above, according to the present invention, the following effects can be achieved.

イ)伸長された弾性糸と熱可塑性合成繊維フィラメント
糸を下撚してからなる糸を仮撚加工した後、双糸合撚す
ることによって、染め重用被覆弾性糸は、芯部の弾性糸
2本の間に仮撚せしめられた熱可塑性合成繊維フィラメ
ント糸が挟持加熱されており、鞘部周縁部には熱可塑性
合成繊維フィラメント糸がアーチ状に拡がっていること
により、チーズ内被染物として染液の貫通がよい。同時
に、仮撚セットを付与された被覆弾性糸であるため、沸
騰水収縮率および伸縮復元率が低減された結果としてチ
ーズ内層の圧縮化が進まず、均斉な染色が可能である。
b) By false twisting the yarn made by first twisting the elongated elastic yarn and thermoplastic synthetic fiber filament yarn, and then twisting the double yarn, the coated elastic yarn for heavy dyeing can be obtained by twisting the core elastic yarn 2. False-twisted thermoplastic synthetic fiber filament threads are sandwiched and heated between the books, and the thermoplastic synthetic fiber filament threads are spread out in an arch shape around the periphery of the sheath, allowing dyeing to occur inside the cheese. Good penetration of liquid. At the same time, since it is a coated elastic yarn that has been given a false twist set, the boiling water shrinkage rate and stretch recovery rate are reduced, so that the inner layer of cheese does not become compressed, and uniform dyeing is possible.

口)シかも、下撚数(T w )が3007/M未満で
、仮撚加熱が下撚と同一方向の撚方向であって双糸合撚
数(Td)が、下撚(Tw)300T/M未満と同一、
もしくはそれ以下である場合には、先撚未解撚調で、交
絡混繊の外観を有する被2 覆弾性糸を得ることができたうえに、弾性糸への熱可塑
性合成繊維フィラメント糸の被覆性が大きな部分と反対
に開繊した部分が交互に共存しているので高い伸長回復
応力の有する低伸縮被覆弾性糸となる。
(Example) If the number of first twists (Tw) is less than 3007/M, the false twisting heating is in the same direction as the first twist, and the number of double yarn twists (Td) is 300T in the first twist (Tw). Same as less than /M,
or less, it is possible to obtain a covered elastic yarn with a pre-twisted, untwisted tone and the appearance of interlaced mixed fibers, and it is also possible to obtain a covered elastic yarn with an untwisted, untwisted tone and an appearance of interlaced mixed fibers. Since the parts with high elasticity and the oppositely spread parts coexist alternately, it becomes a low stretch coated elastic yarn with high elongation recovery stress.

その結果、チーズ染め後丸編に供給すると製編性は良好
で、何んらガイドで引掛ったり、双糸のズレを誘発する
ことなく弾性糸切断の懸念の全くない通過性がすこぶる
良好である。得られた九絹地は表面が平滑で、ストレッ
チ性に富みかつ伸長回復性良好な生地である。
As a result, when fed to circular knitting after cheese dyeing, the knitting properties are good, and the passing through is very good without any concerns about elastic yarn breakage without getting caught in any guides or causing misalignment of the twin yarns. be. The obtained nine-silk fabric has a smooth surface, is highly stretchable, and has good stretch recovery properties.

【図面の簡単な説明】[Brief explanation of drawings]

第1図は、本発明に係る被覆弾性糸の一実施例を示す概
略図である。第2図、および第3図は、本発明の被覆弾
性糸の製造方法の一つの実施例を示す工程概略図であり
、第2図は下撚工程図で、第3図は仮撚加工工程図であ
る。 1.1′・・・弾性糸 2.2′・・・熱可塑性合成繊維フィラメント糸7 ・
・・リング 3 10・・・張力調整装置 12・・・ヒーター 1−3・・・仮撚スピンドル
FIG. 1 is a schematic diagram showing an embodiment of a covered elastic yarn according to the present invention. 2 and 3 are process schematic diagrams showing one embodiment of the method for producing covered elastic yarn of the present invention, FIG. 2 is a preliminary twisting process diagram, and FIG. 3 is a false twisting process diagram. It is a diagram. 1.1'... Elastic yarn 2.2'... Thermoplastic synthetic fiber filament yarn 7 ・
...Ring 3 10...Tension adjustment device 12...Heater 1-3...False twisting spindle

Claims (5)

【特許請求の範囲】[Claims] (1)伸長された弾性糸と熱可塑性合成繊維フィラメン
ト糸とが下撚が施された状態において仮撚加工せしめら
れてなる下撚りが施された仮撚被覆弾性糸を、合撚する
ことによって、芯部の弾性糸の間に熱可塑性合成繊維フ
ィラメント糸が挟持加熱されて各糸条が結合一体化され
ている部分と、芯糸の弾性糸に対して鞘糸の熱可塑性合
成繊維フィラメント糸がアーチ状に膨出した嵩高部とを
糸の長手方向に交互に有していることを特徴とする被覆
弾性糸。
(1) By combining and twisting the false-twisted coated elastic yarn which has been subjected to the first twist, which is obtained by subjecting the elongated elastic yarn and the thermoplastic synthetic fiber filament yarn to a false twisting process in a first twisted state. , a thermoplastic synthetic fiber filament yarn is sandwiched and heated between the elastic yarns of the core to combine and integrate each yarn, and a thermoplastic synthetic fiber filament yarn of the sheath yarn is connected to the elastic yarn of the core yarn. 1. A coated elastic yarn characterized in that it has arch-shaped bulky parts alternately in the longitudinal direction of the yarn.
(2)伸長された弾性糸と熱可塑性合成繊維フィラント
糸とを引揃え状態で下撚を施した後、仮撚加工をせしめ
て仮撚被覆弾性糸となし、次いで、該仮撚被覆弾性糸を
合撚することを特徴とする被覆弾性糸の製造方法。
(2) After first twisting the elongated elastic yarn and the thermoplastic synthetic fiber fillant yarn in a aligned state, they are subjected to a false twisting process to form a false-twisted covered elastic yarn, and then the false-twisted covered elastic yarn is made. A method for producing a covered elastic yarn, which comprises plying and twisting the yarn.
(3)下撚数(Tw)が、300T/M未満であり、か
つ弾性糸は1.5〜4.5倍のドラフト倍率で伸長され
ていることを特徴とする請求項(2)記載の被覆弾性糸
の製造方法。
(3) The number of first twists (Tw) is less than 300 T/M, and the elastic yarn is stretched at a draft magnification of 1.5 to 4.5 times. Method for producing coated elastic yarn.
(4)下撚の撚方向と、仮撚加工の撚方向が同一の撚方
向であることを特徴とする請求項(2)、または(3)
記載の被覆弾性糸の製造方法。
(4) Claim (2) or (3) characterized in that the twisting direction of the first twist and the twisting direction of the false twisting process are the same twisting direction.
The method for producing the described covered elastic yarn.
(5)仮撚加工のセット温度(Te)が140〜190
℃の範囲を満たし、かつ本文中に定義する仮撚係数(k
)が20,000〜23,000とする条件を充足する
ことを特徴とする請求項(2)、(3)、または(4)
記載の被覆弾性糸の製造方法。
(5) Set temperature (Te) for false twisting is 140 to 190
The false twist coefficient (k
) is 20,000 to 23,000.
The method for producing the described covered elastic yarn.
JP313290A 1990-01-09 1990-01-09 Coated elastic yarn and method for producing the same Expired - Fee Related JP2935043B2 (en)

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JP313290A JP2935043B2 (en) 1990-01-09 1990-01-09 Coated elastic yarn and method for producing the same

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CN104120529A (en) * 2014-07-24 2014-10-29 太仓天龙化纤有限公司 Method for manufacturing composite rubber elastic thread
CN106048810A (en) * 2016-08-11 2016-10-26 苏州维杰纺织有限公司 Core-spun twisted elastic yarn and production method thereof
CN106400240A (en) * 2016-09-22 2017-02-15 江南大学 A double-layer wrapped yarn and a production method therefor
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Publication number Priority date Publication date Assignee Title
CN104073942A (en) * 2014-06-30 2014-10-01 太仓天龙化纤有限公司 Composite stretch yarn
CN104120529A (en) * 2014-07-24 2014-10-29 太仓天龙化纤有限公司 Method for manufacturing composite rubber elastic thread
CN106048810A (en) * 2016-08-11 2016-10-26 苏州维杰纺织有限公司 Core-spun twisted elastic yarn and production method thereof
CN106400240A (en) * 2016-09-22 2017-02-15 江南大学 A double-layer wrapped yarn and a production method therefor
KR102193051B1 (en) * 2020-06-22 2020-12-18 김기섭 Rope manufacturing device

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