JPS628532B2 - - Google Patents

Description

【発明の詳細な説明】 本発明は複合仮撚スラブ系の製法の改良に関す
るものである。 従来から、仮撚加工されつつある芯糸の加撚域
に効果糸をオーバーフイードして芯糸への効果糸
の捲付開始点を変動させながら複合仮撚加工する
ことにより芯糸の周囲に効果糸が一重に捲付いた
部分と三重に捲付いた部分とが交互に存在したス
ラブ糸を製造する方法が種々提案されているが、
本発明は通常の仮撚機のわずかな改造だけで従来
品より長いスラブを有するか又はスラブとネツプ
の両方を有する複合仮撚スラブ糸を簡易に製造し
得る方法を提供するものであつて、その発明の要
旨とするところは、仮撚加工されつつある芯糸の
加撚域に効果糸をオーバーフイードして芯糸への
効果糸の捲付開始点を変動させながら複合仮撚加
工することにより一重捲付部と三重捲付部とが交
互に存在したスラブ糸を形成する際、仮撚機のヒ
ータ上部ガイドの上方に中間ガイドを設け、更に
中間ガイドの上方に芯糸ガイドを設けて、芯糸を
これら各ガイドに通すと共に、中間ガイドと芯糸
ガイドとの間で効果糸を芯糸に捲付かせ、且つ中
間ガイドと芯糸ガイドとの距離を効果糸の最大捲
付振幅巾より長くし、しかも中間ガイドと芯糸ガ
イドとを結ぶ線と、ヒータ上部ガイドと中間ガイ
ドとを結ぶ線とのなす角θ、及びヒータ上部ガイ
ドと中間ガイドとを結ぶ線と、ヒータ内糸道との
なす角αとをいずれも90゜〜180゜にすることを
特徴とする複合仮撚スラブ糸の製法にある。 以下図面に従つて本発明を詳細に説明すると、
第１図は本発明の実施に使用する装置の一例を示
す斜視図、第２図はその側面図、第３図はその正
面図、第４図は第１図の装置におけるヒータ上部
ガイドと芯糸ガイド間における仮撚遡及状態を示
す斜視図、第５図は中間ガイドの位置による糸道
変化を示す正面図で第１図〜第５図において、予
め所定の張力に設定された糸条Ａは芯糸ガイド１
を介し、ヒータ内に供給される。この時スピンド
ル回転によつて得られる撚りは芯糸ガイド２の位
置まで遡及するが撚遡及の度合はヒータ上部ガイ
ド１と中間ガイド３及び中間ガイド３と芯糸ガイ
ド２との位置関係により異なる。すなわち、第４
図に示す様にヒータ内糸道とガイド１，３による
直線仮撚遡及域への撚遡及は低下し、さらにガイ
ド１，３による直線仮撚遡及域とガイド２，３に
よる直線仮撚遡及域の成す角θによつてもガイド
２，３による直線仮撚遡及域への撚遡及は変化す
る。 一方、糸条Ｂはフイードローラにより、所定の
供給率で送られる。そしてフイードローラ５から
効果糸ガイド４を介し、ガイド２，３の間の直線
仮撚遡及域にて糸条Ａに振幅捲回させる。こうし
てガイド２，３の間で糸条Ａを芯糸とし、糸条Ｂ
を効果糸として成る三重捲付構造のスラブ糸条が
得られる。 ガイド２，３によつて構成される直線仮撚遡及
域の長さは、糸条Ｂの糸条Ａに対する最大捲回振
幅巾より長くする。最大捲回振幅巾より短いとス
ラブ長に限界が生じることになり、糸条の意匠効
果を損なうことになる。従来の方法によつて得ら
れるスラブ糸のスラブ長は最大長５〜６cmであつ
たが、さらにスラブ長を長くし、従来糸との有意
差をつけるためにはガイド２，３間の直線仮撚遡
及域の長さを少なくとも８cmとする。ガイド２，
３による直線仮撚遡及域には糸状Ｂが、糸条Ａに
捲回捲付けが行なわれる以外何らの障害もあつて
はならない。例えばフイードローラ等に接触する
と糸切れなどのトラブル因となる。 ところで、ガイド１，３間、２，３間の各々の
直線仮撚遡及域への遡及撚は第５図に示す如く、
中間ガイド３の位置により変化する。第５図に示
すように、角θが180゜となる場合はガイド２，
３による直線仮撚遡及域への撚遡及の度合はヒー
タ内撚数に近くなる。もちろんこの時角αは180
゜に近く135゜以上の角（好ましくは150゜以上）
で撚遡及は180゜と同等レベルに達すると同時に
ガイドによる糸へのシゴキも極めて弱くなる。こ
の状態の時、ガイド２と３の間で形成されるスラ
ブはガイド１，３によつて移動することなく、ヒ
ータ内に供給され、セツトされ、集束性に優れた
ものとなる。しかもヒータ内では直線仮撚遡及域
の遡及撚よりも撚数は高いため一層集束性は良好
となる。このことは、第５図に示す場合も角
θ、角αの関係が変わるだけで原理は同様であ
る。ガイド２，３間の直線仮撚遡及域への撚遡及
は角θ、角αが小さい程低下する。そして角θが
90゜より小さくなるとガイド２，３間の直線仮撚
遡及域への遡及撚は著しく低下し、この域内での
糸条Ｂの糸条Ａへの捲回捲付は困難となり、スラ
ブは形成されない。スラブが形成されるためには
角θが90゜以上である。 第５図に示した様に中間ガイドの位置が角θ
＝90゜となる場合極めてルーズなスラブが捲回捲
付域で発生し、しかもガイド３及び１によるスラ
ブ部へのシゴキが加わり、スラブの移動が生じ、
スラブ長は短かくなり、不均整なスラブが出来、
場合によつてはネツプ状態になる。この様なスラ
ブ、ネツプが混在した状態でヒータ内に供給され
るとヒータ内仮撚撚数はガイド１，３及びガイド
３，１による直線仮撚域の撚数より高いため、ヒ
ータ内では、もはやスラブ、ネツプの移動のない
状態でセツトされ、スラブ、ネツプ混在糸条が得
られる。 この様に、中間ガイド３によつて位置により角
θ、角αは変化するが、このガイド３を角θ，α
が各々90゜以上180゜以下の範囲で変動させる様
にすると均整なスラブ、不均整なスラブやネツプ
までが混在した糸条を得ることが可能となる。 本発明は、仮撚機種の限定もなく、フイードロ
ーラの嵩上げ等による大巾な改造を必要とせず、
芯糸ガイド２と中間ガイド３を取り付けるだけ
で、従来の方法と同等の長いスラブ糸を得られる
ばかりでなく、スラブ、ネツプが混在した極めて
意匠性に富んだ仮撚複合糸を得ることを可能にし
たものである。 次に本発明による実施例を示す。 【表】DETAILED DESCRIPTION OF THE INVENTION The present invention relates to improvements in the manufacturing process of composite false-twisted slab systems. Conventionally, by overfeeding the effect yarn into the twisted area of the core yarn that is being false-twisted and performing a compound false-twisting process while varying the winding start point of the effect yarn around the core yarn, Various methods have been proposed for producing slub yarn in which areas where the effect yarn is wrapped in a single layer and portions where the yarn is wrapped in a triple layer alternately exist.
The present invention provides a method for easily producing a composite false-twisted slab yarn having a longer slab than conventional products or having both a slab and a nip with only slight modification of a normal false-twisting machine. The gist of the invention is to overfeed the effect yarn into the twisted region of the core yarn that is being false-twisted, and to perform composite false twisting while varying the starting point of winding the effect yarn onto the core yarn. When forming a slab yarn with alternating single-wound parts and triple-wound parts, an intermediate guide is provided above the heater upper guide of the false twister, and a core yarn guide is further provided above the intermediate guide. , the core thread is passed through each of these guides, and the effect thread is wound around the core thread between the intermediate guide and the core thread guide, and the distance between the intermediate guide and the core thread guide is set to the maximum winding amplitude width of the effect thread. In addition, the angle θ between the line connecting the intermediate guide and the core yarn guide and the line connecting the heater upper guide and the intermediate guide, the line connecting the heater upper guide and the intermediate guide, and the heater inner yarn path. A method for manufacturing a composite false-twisted slub yarn characterized in that the angle α formed between the yarn and the yarn is 90° to 180°. The present invention will be described in detail below with reference to the drawings.
FIG. 1 is a perspective view showing an example of a device used to carry out the present invention, FIG. 2 is a side view thereof, FIG. 3 is a front view thereof, and FIG. 4 is a heater upper guide and core in the device shown in FIG. 1. FIG. 5 is a perspective view showing the state of false twisting between the yarn guides, and FIG. 5 is a front view showing changes in the yarn path depending on the position of the intermediate guide. is core thread guide 1
is supplied into the heater through the At this time, the twist obtained by the rotation of the spindle is traced back to the position of the core thread guide 2, but the degree of twist traceback varies depending on the positional relationship between the heater upper guide 1 and the intermediate guide 3, and between the intermediate guide 3 and the core thread guide 2. That is, the fourth
As shown in the figure, the twist tracing to the linear false twist tracing area by the heater inner yarn path and guides 1 and 3 is reduced, and furthermore, the straight false twisting tracing area by guides 1 and 3 and the linear false twist tracing area by guides 2 and 3 is reduced. The twisting movement of the guides 2 and 3 to the straight line false twisting movement region also changes depending on the angle θ formed by the guides 2 and 3. On the other hand, yarn B is fed by a feed roller at a predetermined feeding rate. Then, the yarn A is oscillatedly wound from the feed roller 5 through the effect yarn guide 4 in the linear false twisting region between the guides 2 and 3. In this way, yarn A is used as a core yarn between guides 2 and 3, and yarn B is
A slub yarn with a triple-wound structure consisting of the effect yarn is obtained. The length of the linear false-twist trace region formed by the guides 2 and 3 is made longer than the maximum winding amplitude of the yarn B with respect to the yarn A. If it is shorter than the maximum winding amplitude, there will be a limit to the slab length, which will impair the design effect of the yarn. The maximum slab length of the slub yarn obtained by the conventional method was 5 to 6 cm, but in order to further increase the slub length and create a significant difference from the conventional yarn, the straight line between guides 2 and 3 was required. The length of the twisting area shall be at least 8 cm. Guide 2,
There should be no obstruction in the linear false twisting area according to No. 3 except that thread B is wound around thread A. For example, if it comes into contact with a feed roller or the like, it may cause problems such as thread breakage. By the way, the retro-twisting to the linear false-twisting retroactive areas between guides 1 and 3 and between guides 2 and 3 is as shown in FIG.
It changes depending on the position of the intermediate guide 3. As shown in Fig. 5, when the angle θ is 180°, the guide 2,
The degree of twist tracing to the straight line false twist tracing area by No. 3 becomes close to the number of twists in the heater. Of course, the hour angle α is 180
An angle close to 135° or more (preferably 150° or more)
In this case, the twisting motion reaches the same level as 180°, and at the same time, the force exerted on the thread by the guide becomes extremely weak. In this state, the slab formed between the guides 2 and 3 is supplied into the heater and set without being moved by the guides 1 and 3, resulting in excellent convergence. Furthermore, since the number of twists in the heater is higher than the retrotwisting in the linear false twisting region, the convergence is even better. The principle is the same in the case shown in FIG. 5, except that the relationship between the angles θ and α is different. As the angle θ and the angle α become smaller, the twist retracement to the linear false twist retracement area between the guides 2 and 3 decreases. and the angle θ is
When the angle is smaller than 90°, the retro-twist to the linear false-twist retro-twisting area between guides 2 and 3 decreases significantly, and it becomes difficult to wind yarn B onto yarn A within this area, and a slab is not formed. . In order to form a slab, the angle θ must be 90° or more. As shown in Figure 5, the position of the intermediate guide is at an angle θ
= 90°, an extremely loose slab will occur in the winding area, and furthermore, the slab will be moved due to the addition of squeezing by the guides 3 and 1.
The slab length becomes shorter, creating an uneven slab.
In some cases, it becomes a neps state. When such a mixture of slabs and nets is supplied into the heater, the number of false twists in the heater is higher than the number of twists in the linear false twist area by guides 1 and 3 and guides 3 and 1, so in the heater, The yarn is set without any movement of slabs and nets, and a yarn containing slabs and nets is obtained. In this way, the angles θ and α change depending on the position of the intermediate guide 3.
By varying the angles within a range of 90° or more and 180° or less, it is possible to obtain a yarn containing a mixture of uniform slabs, irregular slabs, and even neps. The present invention is not limited to false twisting machines, does not require extensive modification such as raising the height of the feed roller,
By simply attaching the core yarn guide 2 and the intermediate guide 3, it is possible to not only obtain a long slub yarn equivalent to the conventional method, but also to obtain a false-twisted composite yarn with a mixture of slubs and neps that is extremely rich in design. This is what I did. Next, examples according to the present invention will be shown. 【table】

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

第１図は本発明の実施に使用する装置の一例を
示す斜視図、第２図はその側面図、第３図はその
正面図、第４図は第１図の装置におけるヒータ上
部ガイドと芯糸ガイド間における仮撚遡及状態を
示す斜視図、第５図は中間ガイドの位置による糸
道変化を示す正面図で、第１図〜第５図におい
て、１はヒータ上部ガイド、２は芯糸ガイド、３
は中間ガイド、４は効果糸ガイド、５は効果糸フ
イードローラ、６はヒータである。 FIG. 1 is a perspective view showing an example of a device used to carry out the present invention, FIG. 2 is a side view thereof, FIG. 3 is a front view thereof, and FIG. 4 is a heater upper guide and core in the device shown in FIG. 1. FIG. 5 is a perspective view showing the state of false twisting between the yarn guides, and FIG. 5 is a front view showing changes in the yarn path depending on the position of the intermediate guide. In FIGS. 1 to 5, 1 is the heater upper guide, and 2 is the core yarn. Guide, 3
4 is an intermediate guide, 4 is an effect yarn guide, 5 is an effect yarn feed roller, and 6 is a heater.

Claims (1)

【特許請求の範囲】[Claims] １ 仮撚加工されつつある芯糸の加撚域に効果糸
をオーバーフイードして芯糸への効果糸の捲付開
始点を変動させながら複合仮撚加工することによ
り一重捲付部と三重捲付部とが交互に存在したス
ラブ糸を形成する際、仮撚機のヒータ上部ガイド
の上方に中間ガイドを設け、更に中間ガイドの上
方に芯糸ガイドを設けて、芯糸をこれら各ガイド
に通すと共に、中間ガイドと芯糸ガイドとの間で
効果糸を芯糸に捲付かせ、且つ中間ガイドと芯糸
ガイドとの距離を効果糸の最大捲付振幅巾より長
くし、しかも中間ガイドと芯糸ガイドとを結ぶ線
と、ヒータ上部ガイドと中間ガイドとを結ぶ線と
のなす角θ、及びヒータ上部ガイドと中間ガイド
とを結ぶ線とヒータ内糸道とのなす角αとをいず
れも90゜〜180゜にすることを特徴とする複合仮
撚スラブ糸の製法。1 Overfeeding the effect yarn into the twisted area of the core yarn that is being false-twisted and performing compound false twisting while varying the winding start point of the effect yarn on the core yarn creates a single-wound part and a triple-wound part. When forming a slub yarn with alternating attached parts, an intermediate guide is provided above the heater upper guide of the false twisting machine, and a core yarn guide is further provided above the intermediate guide, and the core yarn is attached to each of these guides. At the same time, the effect yarn is wound around the core yarn between the intermediate guide and the core yarn guide, and the distance between the intermediate guide and the core yarn guide is made longer than the maximum winding amplitude of the effect yarn, and the effect yarn is wound between the intermediate guide and the core yarn guide. The angle θ between the line connecting the core yarn guide and the line connecting the heater upper guide and the intermediate guide, and the angle α between the line connecting the heater upper guide and intermediate guide and the heater inner yarn path. A method for manufacturing composite false-twisted slub yarn characterized by a twist of 90° to 180°.