JPS59204926A - Manufacture of fancy loop yarn - Google Patents

Abstract

PURPOSE:To manufacture a fancy loop yarn having unique appearance, easily, by covering a short fiber bundle under specific condition with a covering yarn unwound from a bobbin attached to a rotary hollow spindle and a core yarn. CONSTITUTION:The short fiber bundle 2 is overfed to the rotary hollow spindle 3 at a speed of <=2.2 times the takeup speed from the front rollers 1, 17 of the fine spinning frame to the takeup rollers 9, 9'. The short fiber bundle 2 is wound spirally around the core yarn 5 by the gyrating tension of the covering yarn 8, and then the core yarn is traversed by the traverse guide 10 while being covered with the covering yarn 8. The wound state of the short fiber bundle varies along the direction of length.

Description

DETAILED DESCRIPTION OF THE INVENTION TECHNICAL FIELD This invention relates to an improved method of making fungy-loop yarns.

[Prior art]

Conventionally, a short fiber bundle is supplied from the front roller of a spinning machine to a rotating hollow spindle, and the covered yarn is covered with the short fiber bundle by a pick-up roller. A method of forming a composite yarn by taking it off is known, but with this method, only a yarn with a poor design effect, in which a covering yarn is simply wrapped around a bundle of short fibers, is obtained.

[Purpose of the invention]

The present invention solves the problems of the conventional method and provides a simple method for producing fungy loop yarn with rich design effects.

[Structure of the invention]

That is, the present invention supplies short fiber bundles from the front roller of a spinning machine to a rotating hollow spindle, and covers the short fiber bundles with the covering yarn that is released (by a bobbin attached to the rotating hollow spindle) and then supplies the short fiber bundles to a pick-up roller. When forming a composite yarn by taking it up with Supplying the core yarn to the rotating hollow spindle
P'j, +j"l 8ffJ bundle is wound around the core yarn by the turning traction force of the covering yarn, and the loose yarn is wrapped between the rotating hollow spindle and the take-up roller while being covered by the covering yarn. This is a method for manufacturing fungy loose yarn in which the special feature is to change the winding state of the core yarn and the short ifL bundle by traversing.

The present invention will be described in detail below with reference to the drawings. FIG.
il 1 side view. In the same figure, the spinning machine front roller (1
) (One take-up roller (9) is delivered at a speed less than 2.2 times higher than the take-up speed of (9') and guided to the rotating hollow spindle (6).

On the other hand, the core thread (5) is pulled out from the cheese (4) and supplied to the rotating hollow spindle (3) via the tension adjusting device (6), and then the bobbin (7) installed on the rotating hollow spindle (3).
The short fiber bundle (2) spun by the front rollers (1) (1') of the spinning machine in an overfeed state by the turning traction force of the covering yarn (8) that has been released is transferred to the core yarn (
After winding it in a coil around the rotating hollow spindle (3), the covering thread (8) is released from the bobbin (7) attached to the rotating hollow spindle (3). 3) and the traverse guide (10) installed between the pick-up rollers (9)
), and the front roller of the spinning machine (1
) (By changing the take-up speed of the short fiber bundle (2) supplied from one fiber bundle and the core yarn (5) supplied from the core yarn cheese (4) via the tension device (6),
After changing the winding state of the short fiber bundle (2) coiled around the yarn guide (11) along the length direction,
) and then the cheese (9) is pulled out by the winder (12).
13).

In this case, the yarns used for the covering yarn (8) and the core yarn (5) are filament yarn, spun yarn, etc., especially the product 11f!
In addition, the tension supplied to the core yarn varies depending on the processing count of the resulting yarn, but it is desirable that the tension is 201 or higher, and 19
When the core yarn tension is less than 1, the hollow spindle (3
) and the front roller (1) of the spinning machine As a result, the loop shape formation is disturbed and snarls are generated, resulting in poor process passability.

In this case, the supply angle (θ) of the core yarn (5) is preferably within 10' to 90 degrees with respect to the center line of the hollow spindle, and if it is less than 10 degrees, it may wind around the core yarn (5). The shape becomes smaller, causing snarling in the short fiber bundle, and if the angle exceeds 90°, the winding of the short fiber bundle becomes patchy, and the winding becomes insufficient, causing slack in the short fiber bundle. This causes the shape of the processed yarn to be disturbed.

In addition, the traverse speed and traverse width in this case vary depending on the degree of change in the shape of the yarn to be obtained, and these can be selected arbitrarily, and can also be used as a traverse method. It is also possible to select any method depending on the machine situation, such as using an air cylinder or using a noheto cam.

FIG. 2 is a side view showing an example of the fungy loop yarn obtained by the present invention, and in the same figure, the non-loop portion [
A] is when the traverse guide (10) moves from the center to the outside, it pulls out the core yarn (5) faster than the speed of the pick-up rollers (9) (9') and overfeeds the fiber bundle ( 2), and the loop part [Bl is the part formed by covering with the traverse guide (1).
When the short fiber bundle (2) moves from the outside to the center, the short fiber bundle (2) wraps around the core yarn υ, forms a coiled loop shape, and is then covered.
) and the covering yarn (8), the short fiber bundle (2) passes in a loop shape between the twisted structure formed by the covering yarn (8), forming a loop shape.

The present invention will be explained in more detail with reference to Examples below.

〔Example〕

42 made of 100% acrylic fiber 8 x 152”
/m of sliver was drafted 20 times as in the apparatus shown in Fig. 1, and then fed to a rotating hollow spindle with an overfeed of 48 inches, from a bobbin attached to the hollow spindle rotating at 10,000 r, p, m. Covering with the released polyester multifilament 50/24 covering yarn, and using the polyester multifilament 50/24 as a core yarn, set the core yarn supply angle θ to 30° and the core yarn tension to 3Of, and supply it to the rotating hollow spindle. Then, while taking out with a pick-up roller that rotates at a speed of 9 minutes, the traverse width is 50 mm,
) When the yarn was traversed at a rubber traversing rate of 27 times/min, a fungy loop yarn of 1/S, 75M, and O having a shape as shown in FIG. 2 was obtained.

〔Effect of the invention〕

According to the present invention constructed as described above, a special effect is achieved in that a fungy loop yarn rich in design effects can be easily obtained with a simple device.

[Brief explanation of the drawing]

Fig. 1 is a side view showing an example of the device used to carry out the present invention, Fig. 2 is a side view showing an example of the thread obtained by the present invention, and in Figs. respectively indicate the following. (IX1')... Spinning machine front roller (2)
... Short fiber bundle (3) ... One rotation hollow spindle (4) ...
... Core thread cheese (5) ... Core thread (6) ... Tension adjustment device (7) ... Bobbin (8) ... Car holder Ring yarn (989 pieces)... Tick-up roller (10)... Traverse guide (11)... Thread path guide (12)... Winder (13)... ...Cheese (θ) ... Core yarn feeding angle (1) ... Air cylinder (A) ... Non-loop part (B) ... ...Loop section

Claims (1)

[Claims] The short fiber bundle is supplied from the front roller of a spinning machine to a rotating hollow spindle, and the covering yarn, which is released by a bobbin attached to the rotating hollow spindle, is covered with the short fiber bundle and taken up by a pick-up roller. 2) When forming a composite yarn, the short fiber bundle is supplied from the front roller of the spinning machine with an overfeed of 120 inches or less, and the core yarn is directly fed from the upper part of the rotating hollow spindle to the rotating hollow spindle to form the short fiber bundle. After the fiber bundle is wrapped around the core yarn by the turning traction force of the covering yarn, the covered yarn is traversed between a rotating hollow spindle and a pick-up roller while being covered by the covering yarn, and the fiber bundle is separated from the core yarn. A method for manufacturing fungy loop yarn characterized by changing the state of winding with a fiber bundle.