JPH06200438A - Production of covered elastic yarn - Google Patents
Production of covered elastic yarnInfo
- Publication number
- JPH06200438A JPH06200438A JP1690493A JP1690493A JPH06200438A JP H06200438 A JPH06200438 A JP H06200438A JP 1690493 A JP1690493 A JP 1690493A JP 1690493 A JP1690493 A JP 1690493A JP H06200438 A JPH06200438 A JP H06200438A
- Authority
- JP
- Japan
- Prior art keywords
- yarn
- elastic
- elastic yarn
- entanglement
- zone
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は，弾性糸を，非弾性のフ
ィラメント糸条で被覆した被覆弾性糸の製造方法に関す
るものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for producing a covered elastic yarn in which an elastic yarn is covered with a non-elastic filament yarn.
【０００２】[0002]
【従来の技術】ポリウレタン系等の弾性糸と仮撚捲縮糸
とを混繊, 交絡した被覆弾性糸の製造法が特公昭40-214
96号公報，同44−6140号公報，同42-21303号公報等に開
示されている。しかしながら，これらの製造法では数百
％に伸張された状態の弾性糸と，この弾性糸とは逆にオ
ーバーフィードされた非弾性のフィラメント糸条とを交
絡ノズルに導入する方法を採っていることから，弾性糸
とフィラメント糸条との混繊, 交絡性が悪く，得られる
被覆弾性糸の集束性が十分ではなく，フィラメントによ
るネップが多発するという欠点がある。2. Description of the Related Art A method for producing a coated elastic yarn in which an elastic yarn such as a polyurethane-based yarn and a false twist crimped yarn are mixed and entangled is disclosed in Japanese Patent Publication No.
No. 96, No. 44-6140, No. 42-21303, etc. However, in these manufacturing methods, a method of introducing an elastic yarn in a state of being stretched to several hundred% and an inelastic filament yarn that is over-fed to the elastic yarn, to the entanglement nozzle, is adopted. Therefore, there are drawbacks such as poor mixing and entanglement of elastic yarns and filament yarns, insufficient coverage of the obtained coated elastic yarns, and frequent nep of filaments.
【０００３】さらに，特公昭56-25535号公報には，仮撚
捲縮加工において解撚されつつある糸条に伸張された弾
性糸を供給して両糸を合糸した後，リラックス状態で交
絡ノズルに導入する方法も提案されている。しかしなが
ら，この方法によると，交絡処理においてリラックス状
態となり，弾性糸の収縮に伴う仮撚加工糸の糸余りが発
生し，安定して操業できないという問題を有している。[0003] Further, Japanese Patent Publication No. 56-25535 discloses that a stretched elastic yarn is supplied to a yarn which is being untwisted in false twist crimping process, and both yarns are combined and then entangled in a relaxed state. A method of introducing the nozzle is also proposed. However, according to this method, there is a problem in that a loose state is generated during the entanglement treatment, and a false-twisted yarn surplus is generated due to the contraction of the elastic yarn, so that the yarn cannot be stably operated.
【０００４】次に，特公平４−3455号公報では，弾性糸
を２段ドラフトし，その後，５〜30％のオーバーフィー
ド率で交絡ゾーンに供給し，それとは別に仮撚捲縮糸を
２〜10％のオーバーフィード率で交絡ゾーンに供給して
弾性糸と交絡処理を施す方法が提案されている。しかし
ながら，この方法で製造するには，仮撚捲縮糸の給糸装
置と弾性糸の２段給糸装置を有する特別な装置が必要と
なり，製造方法も煩雑になるという欠点がある。Next, in Japanese Examined Patent Publication No. 3455/1992, an elastic yarn is drafted in two stages and then fed to an entanglement zone at an overfeed rate of 5 to 30%. A method has been proposed in which the entanglement treatment with the elastic yarn is performed by supplying the entanglement zone with an overfeed rate of -10%. However, in order to manufacture by this method, a special device having a false twist crimped yarn supplying device and a two-stage elastic yarn supplying device is required, and the manufacturing method becomes complicated.
【０００５】[0005]
【発明が解決しようとする課題】本発明は，上記の問題
を解決し，混繊，交絡性が極めて良好であり，また，集
束性もよくてネップ等の斑の発生がなく，均一な芯鞘型
の被覆弾性糸を容易に製造する方法を提供することを技
術的な課題とするものである。DISCLOSURE OF THE INVENTION The present invention solves the above-mentioned problems and has very good mixing and entanglement properties, and also has good focusing properties and does not cause spots such as neps and has a uniform core. It is a technical object to provide a method for easily producing a sheath-type covered elastic yarn.
【０００６】本発明者らは，上記の課題を解決するため
に鋭意検討した結果，混繊，交絡性は，弾性糸と非弾性
の他のフイラメント糸条とを混繊, 交絡させるに際し
て，弾性糸の伸張（ドラフト）の仕方，フィラメント糸
条とドラフトされた弾性糸との交絡ノズルへの供給態様
等の要因が複雑に交錯しているので，混繊，交絡性を向
上させるにはこれらを規制すればよいことを知見して本
発明に到達した。As a result of intensive studies to solve the above-mentioned problems, the present inventors have found that when the fibers are mixed and entangled with each other, an elastic yarn and an inelastic other filament yarn are mixed and entangled. Factors such as how the yarn is stretched (draft) and the manner in which the filament yarn and the drafted elastic yarn are fed to the entanglement nozzle are intricately intermixed. The inventors arrived at the present invention by finding that they should be regulated.
【０００７】すなわち，本発明は，弾性糸を伸張ゾーン
で1.４倍以上に伸張し，引き続き，前記弾性糸を伸張ゾ
ーンの引取ローラで1.０〜1.２倍の伸張下に交絡ゾーン
に供給するとともに，非弾性の他のフィラメント糸条を
前記引取ローラで，かつ弾性糸と分離して交絡ゾーンに
供給し，交絡ゾーンで合糸された弾性糸と他のフィラメ
ント糸条とを混繊，交絡処理した後，10Ｔ／ｍ以上の実
撚を付与しながら捲き取ることを特徴とする被覆弾性糸
の製造方法を要旨とするものである。That is, according to the present invention, the elastic yarn is stretched by 1.4 times or more in the stretching zone, and then the elastic yarn is stretched by 1.0 to 1.2 times by the take-up roller in the stretching zone. And the other non-elastic filament yarn is supplied to the entanglement zone by separating it from the elastic yarn by the take-up roller, and the elastic yarn and other filament yarn mixed in the entanglement zone are mixed. The gist of the present invention is to provide a method for producing a coated elastic yarn, which comprises winding the fiber while applying a true twist of 10 T / m or more after the fiber is entangled.
【０００８】以下，本発明について詳細に説明する。The present invention will be described in detail below.
【０００９】本発明において，一方の供給糸となる弾性
糸としては，数百％の伸張可能なもものであれば特に限
定されるものではないが,ポリウレタン糸より耐熱性,耐
薬品性，耐光性に優れたポリエーテルエステル系弾性繊
維を用いることが好ましい。ポリエーテルエステル系弾
性繊維は，ポリエチレンテレフタレート又はポリブチレ
ンテレフタレートを主とするポリエステルをハードセグ
メント，分子量 500〜5000の直鎖状ポリアルキレングリ
コールをソフトセグメントとする弾性繊維である。そし
て，ポリアルキレングリコールとしては，ポリテトラメ
チレングリコールやポリエチレングリコールが用いられ
るが，特にポリテトラメチレングリコールが好ましい。
ポリアルキレングリコールは，分子量 500〜5000，好ま
しくは1000〜3000のものであることが必要である。ポリ
アルキレングリコールの分子量が500未満では十分な弾
性特性が得られず，逆に5000を超えると，ハードセグメ
ント形成成分との相溶性が悪くなって均一な重合体が得
られず，弾性回復率が劣ったものとなる。In the present invention, the elastic yarn serving as one of the supplying yarns is not particularly limited as long as it can be stretched by several hundred percent, but is more heat resistant, chemical resistant and light resistant than polyurethane yarn. It is preferable to use a polyetherester-based elastic fiber having excellent properties. Polyetherester-based elastic fiber is an elastic fiber in which polyester mainly composed of polyethylene terephthalate or polybutylene terephthalate is a hard segment and linear polyalkylene glycol having a molecular weight of 500 to 5000 is a soft segment. As the polyalkylene glycol, polytetramethylene glycol or polyethylene glycol is used, and polytetramethylene glycol is particularly preferable.
The polyalkylene glycol should have a molecular weight of 500 to 5000, preferably 1000 to 3000. If the molecular weight of the polyalkylene glycol is less than 500, sufficient elastic properties cannot be obtained. On the contrary, if it exceeds 5,000, the compatibility with the hard segment-forming components becomes poor and a uniform polymer cannot be obtained, resulting in an elastic recovery rate. Will be inferior.
【００１０】また，ハードセグメントとソフトセグメン
トとの割合は，優れた弾性回復率と物性を保つために，
ハードセグメント／ソフトセグメントの重量比を20／80
〜60／40の範囲にすることが好ましい。ソフトセグメン
トの量が40重量％未満では弾性特性が低下し，ソフトセ
グメントの量が80重量％を超えると，高温時や熱処理後
の機械的特性が低下する。The ratio of the hard segment to the soft segment is set in order to maintain an excellent elastic recovery rate and physical properties.
20/80 weight ratio of hard segment / soft segment
It is preferably in the range of -60/40. When the amount of soft segment is less than 40% by weight, the elastic properties deteriorate, and when the amount of soft segment exceeds 80% by weight, the mechanical properties at high temperature and after heat treatment deteriorate.
【００１１】本発明では，上記した弾性糸と非弾性の他
のフィラメント糸条とを混繊, 交絡処理して被覆弾性糸
を得るものであるが，混繊・交絡性を向上させるには，
弾性糸の伸張（ドラフト）の仕方，フィラメント糸条と
ドラフトされた弾性糸との交絡ノズルへの供給態様等を
規制することが重要である。In the present invention, the above-mentioned elastic yarn and other non-elastic filament yarn are mixed and entangled to obtain a coated elastic yarn. To improve the mixing and entanglement,
It is important to regulate the way of stretching (drafting) the elastic yarn, the manner of supplying the filament yarn and the drafted elastic yarn to the entanglement nozzle, and the like.
【００１２】通常，交絡処理を行うに際し，交絡ゾーン
では，２本の糸条をオーバーフィードさせながら交絡ノ
ズルに供給して混繊，交絡させるが，この場合，弾性糸
の収縮とフィラメント糸条の供給張力を適切に維持する
ことが必要になり，同一条件で混繊，交絡させることは
難しい。[0012] Usually, in performing the entanglement treatment, in the entanglement zone, two yarns are over-fed and fed to the entanglement nozzle to mix and entangle, but in this case, contraction of the elastic yarn and filament yarn It is necessary to maintain the supply tension appropriately, and it is difficult to mix and entangle the fibers under the same conditions.
【００１３】本発明では，まず伸張ゾーンで，前記した
弾性糸を1.４倍以上に伸張させる。これは次工程で弾性
糸と非弾性の他のフィラメント糸条とを交絡処理する際
に，弾性糸を1.０〜1.２倍の伸張下に交絡処理を可能と
するためであり，伸張率が1.４倍未満では張力が高くて
交絡性が低下する。In the present invention, the elastic yarn is stretched 1.4 times or more in the stretching zone. This is because the elastic yarn can be entangled while being stretched by 1.0 to 1.2 times when the elastic yarn is intertwined with another inelastic filament yarn in the next step. If the ratio is less than 1.4 times, the tension is high and the entanglement property decreases.
【００１４】次いで，前記弾性糸を伸張ゾーンの引取ロ
ーラで1.０〜1.２倍の伸張下に交絡ゾーンに供給すると
ともに，他のフィラメント糸条を前記引取ローラで，か
つ弾性糸と分離して交絡ゾーンに供給し，交絡ゾーンで
合糸された弾性糸と他のフィラメント糸条とを混繊，交
絡処理する。Then, the elastic yarn is supplied to the entanglement zone under 1.0 to 1.2 times expansion by the take-up roller in the extension zone, and other filament yarns are separated from the elastic yarn by the take-up roller. Then, the elastic yarn mixed in the entanglement zone and the other filament yarn are mixed and entangled.
【００１５】ここで重要なことは，弾性糸とフィラメン
ト糸条を交絡ゾーンに独立して供給し，交絡ゾーンで合
糸して混繊，交絡処理することである。これは，当初か
ら合糸状態にすれば，弾性糸の収縮に伴い他のフィラメ
ント糸条が弛むのを防止するためである。交絡ゾーンに
おいて，弾性糸とフィラメント糸条が合糸される位置は
交絡ノズルに近いほどよく，弾性糸と他のフィラメント
糸条を分離して交絡ゾーンに供給するには，伸張ゾーン
の引取ローラの上流側にガイドを設け，弾性糸と他のフ
ィラメント糸条が分離した状態で上記引取ローラに把持
されるようにすればよい。What is important here is that the elastic yarn and the filament yarn are independently supplied to the entanglement zone, and they are entangled in the entanglement zone to be mixed and entangled. This is to prevent the other filament yarns from slackening when the elastic yarn is contracted when the yarn is made to be in the combined state from the beginning. In the entanglement zone, the position where the elastic yarn and the filament yarn are combined should be closer to the entanglement nozzle, and in order to separate the elastic yarn and other filament yarns and supply them to the entanglement zone, the take-up roller of the extension zone is used. A guide may be provided on the upstream side so that the elastic roller and the other filament yarn are gripped by the take-up roller in a separated state.
【００１６】また，本発明において重要なことは，交絡
ゾーンの糸条を伸張状態にして混繊，交絡処理を施すこ
とであり，これは次の理由からである。すなわち，交絡
ゾーンで弾性糸と非弾性の他のフィラメント糸条とを混
繊，交絡させる場合，両糸条を均一に交絡させるには弾
性糸と他のフィラメント糸条との張力のバランスが重要
である。一般的に芯糸と鞘糸となる糸条を交絡処理して
芯鞘構造の複合糸を製造する場合，交絡ゾーンにおいて
芯糸より鞘糸の供給率を大きくし，芯糸の供給張力を鞘
糸の供給張力より大きくすることが必要である。したが
って，弾性糸を芯側に，他のフィラメント糸条を鞘側に
位置させるためには，弾性糸よりも他のフィラメント糸
条を多く供給する必要があるが，伸張状態の交絡処理
後，弾性糸は無張力の状態になると大きな収縮を示すの
で，伸張下の交絡処理で得られた複合糸は実質的に糸長
差を有した被覆弾性糸となる。Further, what is important in the present invention is that the yarns in the entanglement zone are stretched and mixed and entangled, and this is for the following reason. That is, when the elastic yarn and other inelastic filament yarns are mixed and entangled in the entanglement zone, the tension balance between the elastic yarns and the other filament yarns is important to uniformly entangle both yarns. Is. Generally, when manufacturing a composite yarn with a core-sheath structure by interlacing the yarns that are the core yarn and the sheath yarn, the supply rate of the sheath yarn is made larger than that of the core yarn in the confounding zone, and the supply tension of the core yarn is increased. It is necessary to make it larger than the thread supply tension. Therefore, in order to position the elastic yarn on the core side and the other filament yarns on the sheath side, it is necessary to supply more filament yarns than the elastic yarns. Since the yarn shows a large shrinkage in a tensionless state, the composite yarn obtained by the entanglement treatment under stretching becomes a covered elastic yarn having a substantial yarn length difference.
【００１７】一方，交絡ゾーンの糸条を弛緩（オーバー
フィード）状態にした場合，前工程で伸張された弾性糸
はその収縮力で収縮するので，非弾性の他フィラメント
糸条が見掛け上，過剰供給されたこととなり，このため
弾性糸と他のフィラメント糸条との交絡処理が十分には
行われず，他のフィラメント糸条が糸余りの状態とな
る。本発明において，交絡ゾーンの糸条の伸張率として
は1.０〜1.２倍が必要であり，伸張率がこの範囲であれ
ば適正な糸条張力が得られ，糸の弛みもなく，安定して
交絡処理を行うことができる。また，上記の交絡処理で
は80〜 150個/mの交絡を形成させることが好ましい。On the other hand, when the yarns in the entanglement zone are in a relaxed (overfeed) state, the elastic yarns stretched in the previous step contract due to the contracting force, so that other non-elastic filament yarns are apparently excessive. Since it has been supplied, the entanglement process between the elastic yarn and the other filament yarn is not sufficiently performed, and the other filament yarn is left in a yarn excess state. In the present invention, the elongation rate of the yarn in the entanglement zone needs to be 1.0 to 1.2 times, and if the extension ratio is within this range, an appropriate yarn tension can be obtained, and there is no slack in the yarn. The confounding process can be stably performed. Further, it is preferable to form 80 to 150 entangles / m in the above entanglement treatment.
【００１８】本発明では，弾性糸と非弾性の他のフィラ
メント糸条とを混繊，交絡させた後，10Ｔ／ｍ以上の実
撚を付与しながら捲き取って，弾性糸が芯糸，他のフィ
ラメント糸条が鞘糸となった被覆弾性糸を得る。一般に
伸張状態で交絡処理された複合交絡糸は, そのままの状
態では交絡部が弱く，集束性が十分ではないので，後工
程で問題を生じる。本発明では, 交絡処理後の糸条を実
撚を付与しながら捲き取るので，糸条の長手方向にほぼ
均一に付与される実撚によって集束性が向上する。糸条
の集束性を向上させるには, 実撚数は10Ｔ／ｍ以上が必
要であるが，実撚数が多くなると，弾性糸と他のフィラ
メント糸条との集束性は向上する反面，拘束力が増して
伸縮性が低下する傾向を示し,また,被覆弾性糸のトルク
が多くなって後工程で不利となるので，交絡数と同程度
か，それよりもやや少ない撚数が特に好ましい。交絡処
理後の糸条を実撚を付与しながら捲き取るには，リング
撚糸機構を備えた捲取装置を用いればよい。In the present invention, the elastic yarn and the other non-elastic filament yarn are mixed and entangled, and then wound while giving a real twist of 10 T / m or more, and the elastic yarn is the core yarn, etc. A coated elastic yarn is obtained in which the filament yarn of is a sheath yarn. In general, the composite entangled yarn that has been entangled in the stretched state has a weak entanglement in its original state and has insufficient focusing properties, which causes a problem in the subsequent process. In the present invention, since the yarn after the entanglement treatment is wound while giving the actual twist, the bundle twisting property is improved by the actual twist that is applied almost uniformly in the longitudinal direction of the yarn. The number of real twists needs to be 10 T / m or more to improve the yarn converging property, but when the number of real twists increases, the converging property of the elastic yarn and other filament yarns improves, but the restraint The tendency is to increase the force and to decrease the elasticity, and since the torque of the coated elastic yarn increases, which is disadvantageous in the subsequent process, a twist number about the same as or slightly less than the entanglement number is particularly preferable. To wind up the entangled yarn while applying the actual twist, a winding device equipped with a ring twisting mechanism may be used.
【００１９】本発明において，弾性糸を被覆する非弾性
の他のフィラメント糸条は特に限定されるものではな
く，マルチフィラメント糸条であればいずれの素材でも
よいが，伸張率1.０〜1.２倍で交絡ゾーンに供給される
ため，伸縮性のよい仮撚捲縮糸が好ましい。In the present invention, the other non-elastic filament yarn covering the elastic yarn is not particularly limited, and any material may be used as long as it is a multi-filament yarn, but the elongation ratio is 1.0 to 1 A false twist crimped yarn having good stretchability is preferable because it is supplied to the entanglement zone at a rate of 0.2 times.
【００２０】次に，本発明を図面により説明する。Next, the present invention will be described with reference to the drawings.
【００２１】図１は，本発明の一実施態様を示す概略工
程図であり，図２は，図１の交絡処理ゾーンの部分拡大
図である。図１，２において，弾性糸Ａは，供給ローラ
１と引取ローラ２との間の伸張ゾーンで1.４倍以上の伸
張率で伸張され，次いで引取ローラ２と引取ローラ４と
の間の交絡ゾーンに伸張率1.０〜1.２倍で供給される。FIG. 1 is a schematic process diagram showing an embodiment of the present invention, and FIG. 2 is a partially enlarged view of the confounding processing zone of FIG. In FIGS. 1 and 2, the elastic yarn A is stretched at a stretching ratio of 1.4 times or more in the stretching zone between the supply roller 1 and the take-up roller 2, and then the entanglement between the take-up roller 2 and the take-up roller 4 is performed. It is supplied to the zone at a stretch rate of 1.0 to 1.2 times.
【００２２】一方，非弾性の他のフィラメント糸条Ｂ
は，弾性糸Ａと同じ引取ローラ２で，かつ，弾性糸Ａと
は分離した状態で交絡ゾーンに供給され，弾性糸Ａとと
もに交絡ノズル３で混繊・交絡処理が行われた後，リン
グ撚糸機構を備えた捲取部５で10Ｔ／ｍ以上の実撚を付
与しながら目的とする被覆弾性糸として捲き取られる。On the other hand, another non-elastic filament yarn B
Is supplied to the entanglement zone in the same take-up roller 2 as the elastic yarn A and in a state of being separated from the elastic yarn A, and after being mixed and entangled by the entanglement nozzle 3 together with the elastic yarn A, the ring twisted yarn It is wound as a target covered elastic yarn while applying a real twist of 10 T / m or more in the winding section 5 equipped with a mechanism.
【００２３】[0023]
【作用】本発明では，弾性糸を伸張ゾーンで1.４倍以上
に伸張し，引き続き，前記弾性糸を伸張ゾーンの引取ロ
ーラで1.０〜1.２倍の伸張下に交絡ゾーンに供給すると
ともに，非弾性の他のフィラメント糸条を前記引取ロー
ラで，かつ弾性糸と分離して交絡ゾーンに供給し，交絡
ゾーンで合糸された弾性糸と他のフィラメント糸条とを
混繊，交絡処理するので，弾性糸が収縮しても他のフィ
ラメント糸条が弛むことがなく，２つの糸条を十分に交
絡させることができる。さらに，交絡処理後の糸条に10
Ｔ／ｍ以上の実撚を付与しながら捲き取るので，交絡数
が少なくても集束性がよくてネップ等の斑の発生がな
く，均一な芯鞘型の被覆弾性糸を容易に製造することが
できる。In the present invention, the elastic yarn is stretched 1.4 times or more in the stretching zone, and then the elastic yarn is supplied to the entanglement zone under the stretching of 1.0 to 1.2 times by the take-up roller of the stretching zone. At the same time, the other non-elastic filament yarn is supplied to the entanglement zone by the take-off roller and separated from the elastic yarn, and the elastic yarn and the other filament yarn mixed in the entanglement zone are mixed, Since the entanglement process is performed, the other filament yarns are not loosened even when the elastic yarn is contracted, and the two yarns can be sufficiently entangled. Furthermore, the yarn after the entanglement treatment has 10
Since it is wound while giving a real twist of T / m or more, even if the number of entanglements is small, it has good bundling properties and does not cause spots such as neps, and it is easy to manufacture uniform core-sheath type covered elastic yarn. You can
【００２４】[0024]
【実施例】次に，本発明を実施例により具体的に説明す
る。EXAMPLES Next, the present invention will be specifically described by way of examples.
【００２５】実施例１〜５，比較例１〜４ まず，エステル化反応缶にテレフタル酸ジメチル１9.４
kg及び1,４−ブタンジオール９kgを仕込み，テトラブチ
ルチタネート10ｇを触媒として加え，常圧下，210℃で
2.５時間エステル交換反応を行った。得られた反応物を
重合缶に移送し，平均分子量2000のポリテトラメチレン
グリコール33kgを添加し，次いで,250℃で３時間，１ト
ル以下の減圧下で重縮合反応を行い，極限粘度〔η〕2.
25のポリマーを得た。このポリマーを減圧乾燥後，通常
の溶融紡糸機を用い，紡糸温度 230℃で紡糸後，2.５倍
に延伸し, 次いで 140℃で弛緩熱処理して，50d/3fのポ
リエーテルエステル系弾性糸Ａを得た。Examples 1-5, Comparative Examples 1-4 First, dimethyl terephthalate 19.4 was added to the esterification reaction vessel.
1 kg of 1,4-butanediol was charged, 10 g of tetrabutyl titanate was added as a catalyst, and at 210 ° C. under normal pressure.
The transesterification reaction was carried out for 2.5 hours. The obtained reaction product was transferred to a polymerization vessel, 33 kg of polytetramethylene glycol having an average molecular weight of 2000 was added, and then a polycondensation reaction was performed at 250 ° C. for 3 hours under a reduced pressure of 1 Torr or less to obtain an intrinsic viscosity [η ] 2.
25 polymers were obtained. This polymer was dried under reduced pressure, spun at a spinning temperature of 230 ℃ using a normal melt spinning machine, stretched 2.5 times, and then subjected to relaxation heat treatment at 140 ℃ to give 50d / 3f polyetherester elastic yarn. I got A.
【００２６】次に，図１に示した装置を用いて，供給ロ
ーラ１から弾性糸Ａを，引取ローラ２から弾性糸Ａと分
離した状態で75d/36f のポリエチレンテレフタレート１
ヒータ仮撚加工糸Ｂを供給し，供給ローラ１と引取ロー
ラ２間の伸張率（Ｃ），引取ローラ２と引取ローラ４間
の伸張率（Ｄ）及び捲き取り時の実撚数（Ｅ）を種々変
更して混繊, 交絡処理と実撚付与を行って被覆弾性糸を
得た。なお，交絡ノズル４の空気圧は４kg／cm2,捲き取
り速度は 250ｍ／min で加工した。加工条件及び得られ
た被覆弾性糸の特性を表１に示す。Next, using the apparatus shown in FIG. 1, the elastic yarn A from the supply roller 1 and the elastic yarn A from the take-up roller 2 are separated from the elastic yarn A at 75d / 36f polyethylene terephthalate 1
The heater false twisted yarn B is supplied, the expansion ratio between the supply roller 1 and the take-up roller 2 (C), the expansion ratio between the take-up roller 2 and the take-up roller 4 (D), and the number of actual twists during winding (E) The coated elastic yarn was obtained by variously mixing the fibers, performing the entanglement treatment, and imparting the actual twist. The air pressure of the confounding nozzle 4 was 4 kg / cm 2 , and the winding speed was 250 m / min. Table 1 shows the processing conditions and the properties of the obtained coated elastic yarn.
【００２７】[0027]
【表１】 [Table 1]
【００２８】表１から明らかなように，実施例１〜５で
は，芯鞘構造が良好で弛緩−伸張を繰り返しても交絡数
の低下がなく，さらに弾性回復率もよい被覆弾性糸が得
られた。なお，実撚数が多くなると，得られる被覆弾性
糸は集束性が強くなり，弾性回復率が低下する傾向を示
した。As is clear from Table 1, in Examples 1 to 5, coated elastic yarns having a good core-sheath structure, having no decrease in the number of entanglements even after repeated relaxation-expansion, and having a good elastic recovery rate were obtained. It was It should be noted that when the number of actual twists increased, the obtained coated elastic yarn had a stronger bunching property and the elastic recovery rate tended to decrease.
【００２９】一方，比較例１で得られた被覆弾性糸は，
性能的に実施例１からのものと同等であるが，開繊部の
ループが高いので，製編して得られた編地でループがネ
ップ状となり，品位の悪い布帛しか得られなかった。ま
た，弛緩−伸張を繰り返すと，交絡数が大幅に低下し
た。また，比較例２では，仮撚捲縮糸が過張力下におか
れたため，弾性糸が鞘部を形成する形になり，本来の被
覆弾性糸とはいえないものしか得られなかった。さら
に，比較例３，４では，交絡ゾーンで仮撚捲縮糸が糸余
りの状態となり，交絡処理が実施できなかった。On the other hand, the coated elastic yarn obtained in Comparative Example 1 was
Although the performance is equivalent to that of Example 1, since the loops in the spread portion are high, the loops become nep-like in the knitted fabric obtained, and only a poor quality fabric is obtained. In addition, the number of entanglements decreased significantly after repeated relaxation-stretching. Further, in Comparative Example 2, since the false twist crimped yarn was placed under excessive tension, the elastic yarn formed a sheath portion, and only the original covered elastic yarn could be obtained. Furthermore, in Comparative Examples 3 and 4, the false twist crimped yarn was left in the entanglement zone, and the entanglement treatment could not be performed.
【００３０】[0030]
【発明の効果】本発明は，被覆弾性糸を製造するに際
し，弾性糸を伸張後，次の工程で非弾性の他のフィラメ
ント糸条と伸張下で交絡処理を行うので，混繊，交絡性
が極めて良好であり，また，交絡処理後，実撚を付与し
ながら捲き取るので，開繊部のループが小さくなり，交
絡数が少なくても集束性のよい被覆弾性糸を簡単な装置
で，安定して製造することが可能となる。According to the present invention, when the coated elastic yarn is produced, the elastic yarn is stretched and then entangled with another non-elastic filament yarn in the next step, so that the mixed yarn and the entanglement property can be improved. Is very good, and after the entanglement treatment, since it is wound while applying the actual twist, the loop of the opening part becomes small, and even if the number of entanglement is small, the covered elastic yarn with good converging property can be easily obtained with a simple device. It becomes possible to manufacture stably.
【図１】本発明一実施態様を示す概略工程図である。FIG. 1 is a schematic process diagram showing an embodiment of the present invention.
【図２】図１の交絡処理ゾーンの部分拡大図である。FIG. 2 is a partially enlarged view of the confounding processing zone of FIG.
１ 供給ローラ ２，４ 引取ローラ ３ 交絡ノズル ５ リング撚糸機構付の捲取部 Ａ 弾性糸 Ｂ 非弾性の他のフィラメント糸条 1 Supply roller 2, 4 Take-up roller 3 Entangling nozzle 5 Winding part with ring twisting mechanism A Elastic yarn B Other non-elastic filament yarn
Claims (1)
し，引き続き，前記弾性糸を伸張ゾーンの引取ローラで
1.０〜1.２倍の伸張下に交絡ゾーンに供給するととも
に，非弾性の他のフィラメント糸条を前記引取ローラ
で，かつ弾性糸と分離して交絡ゾーンに供給し，交絡ゾ
ーンで合糸された弾性糸と他のフィラメント糸条とを混
繊，交絡処理した後，10Ｔ／ｍ以上の実撚を付与しなが
ら捲き取ることを特徴とする被覆弾性糸の製造方法。1. An elastic yarn is stretched by a factor of 1.4 or more in a stretching zone, and then the elastic yarn is stretched by a take-up roller in the stretching zone.
It is supplied to the entanglement zone under a stretch of 1.0 to 1.2 times, and other non-elastic filament yarn is supplied to the entanglement zone by the take-off roller and separated from the elastic yarn, and is combined in the entanglement zone. A method for producing a covered elastic yarn, which comprises mixing a woven elastic yarn with another filament yarn, performing an entanglement treatment, and then winding it while giving a real twist of 10 T / m or more.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1690493A JPH06200438A (en) | 1993-01-06 | 1993-01-06 | Production of covered elastic yarn |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1690493A JPH06200438A (en) | 1993-01-06 | 1993-01-06 | Production of covered elastic yarn |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH06200438A true JPH06200438A (en) | 1994-07-19 |
Family
ID=11929134
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1690493A Pending JPH06200438A (en) | 1993-01-06 | 1993-01-06 | Production of covered elastic yarn |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH06200438A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004113601A1 (en) * | 2003-06-23 | 2004-12-29 | Teijin Fibers Limited | Woven or knitted fabric containing two different yarns and clothing comprising the same |
| WO2005010258A1 (en) * | 2003-07-29 | 2005-02-03 | Teijin Fibers Limited | Woven or knitted cloth containing two different yarns and exhibiting reduction of interstitial rate in becoming wet |
| WO2005038112A1 (en) * | 2003-10-22 | 2005-04-28 | Teijin Fibers Limited | Stretchable composite fabric and clothing product therefrom |
-
1993
- 1993-01-06 JP JP1690493A patent/JPH06200438A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004113601A1 (en) * | 2003-06-23 | 2004-12-29 | Teijin Fibers Limited | Woven or knitted fabric containing two different yarns and clothing comprising the same |
| EP1860217A2 (en) * | 2003-06-23 | 2007-11-28 | Teijin Fibers Limited | Woven or knitted fabric containing two different yarns and clothing comprising the same |
| EP1860217A3 (en) * | 2003-06-23 | 2010-10-20 | Teijin Fibers Limited | Woven or knitted fabric containing two different yarns and clothing comprising the same |
| US7842628B2 (en) | 2003-06-23 | 2010-11-30 | Teijin Fibers Limited | Woven or knitted fabric containing two different yarns and clothing comprising the same |
| WO2005010258A1 (en) * | 2003-07-29 | 2005-02-03 | Teijin Fibers Limited | Woven or knitted cloth containing two different yarns and exhibiting reduction of interstitial rate in becoming wet |
| WO2005038112A1 (en) * | 2003-10-22 | 2005-04-28 | Teijin Fibers Limited | Stretchable composite fabric and clothing product therefrom |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4554121A (en) | Method of forming latent-contractable elastomeric composite yarns | |
| JP2007521403A (en) | Staple fiber and manufacturing method thereof | |
| MXPA04011721A (en) | Composite fiber and process for producing the same. | |
| JP5254708B2 (en) | Variety of different sizes | |
| JPH06200438A (en) | Production of covered elastic yarn | |
| CN1117893C (en) | Texturized, combined polyester multifilament yarn and process for producing same | |
| JPS6245326B2 (en) | ||
| JPH08232133A (en) | Production of covered elastic yarn | |
| JP3103023B2 (en) | Method for producing composite sewing thread | |
| JP2000220049A (en) | Long-short composite spun yarn having latent elastic characteristic | |
| JP2731345B2 (en) | Cross-dyed mixed yarn and method for producing the same | |
| JP3394039B2 (en) | Stretchable composite textured yarn and stretchable fabric comprising the textured yarn | |
| JPS5929690B2 (en) | Bulky multi-filament yarn and manufacturing method thereof | |
| JPS5876537A (en) | Stretchable crimped processed yarn | |
| JPH0633333A (en) | Non-uniform conjugate textured yarn and its production | |
| JP2666376B2 (en) | Crimped bulky yarn and method for producing the same | |
| JPS5831416B2 (en) | Polyester bulk “Dakashi” | |
| JPH07126944A (en) | Composite yarn and its production | |
| JPS5921970B2 (en) | Polyester fiberglass | |
| JPH08325874A (en) | Production of covered elastic yarn | |
| JP3199587U (en) | Special false twisted yarn and fabric | |
| JPH03167333A (en) | False twisted conjugated yarn and production thereof | |
| JPS5994635A (en) | Composite yarn and production thereof | |
| JPS6312180B2 (en) | ||
| JPS5839928B2 (en) | Tansen Isokuno Seizouhouhou |