JPS61231230A - Production of special slab yarn - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to a method for manufacturing a special slub yarn having a novel design form and generality by subjecting yarn to fluid treatment using a swirling fluid and a stirring fluid.

<Prior art> General (:, methods for manufacturing slub yarn using threads include the method using a design twisting machine or the Japanese Patent Publication No. 47-4945
A composite false-twisting method using a false-twisting machine as proposed in Publication No. 9 is well known.

<Problems to be Solved by the Invention> However, although the designed yarn twisting method has excellent diversity of designs, it has drawbacks such as complicated processes and extremely low productivity. On the other hand, although the composite plate twisting method has excellent productivity, it is limited to the processing of filament yarn, and the yarn obtained from the process of false twisting, heat setting, and untwisting is in the category of crimped yarn, and is versatile. However, there were some restrictions.

As a means of solving these problems, the present applicant.

In Japanese Patent Application No. 58-106438, an excessive amount of yarn for forming a slab is supplied to the heated region of the core yarn where false twisting is being imparted using a swirling fluid, the yarn is wound around the core yarn, and the yarn is continuously stirred. We proposed a method to handle entanglement using fluid. This method is unique in that the false twisting to form the slab and the intertwining to give the yarn cohesiveness can be performed simultaneously using each nozzle directly or with one nozzle; however, they are both processed separately. Condition g: Because it is difficult to set the steps, the machining working range (
: It turns out that there are restrictions. Therefore, as a result of intensive study, the inventors of the present invention have separated the functions of the two and created a more versatile function with the aim of diversification.

Means for Solving the Problems> The present invention provides a method of supplying an excess of yarn for slub formation to the heated region of the core yarn where the false twist is being imparted by the swirling fluid, and winding it around the core yarn to form a slub yarn. A special slab characterized in that when forming and further entangling treatment with a disturbance fluid, multifilament threads are separately supplied to the stirring fluid region at the same time to layer and entangle the multifilament threads on the peripheral surface of the slab thread. It's in the method of manufacturing thread.

According to this method, it is possible to appropriately select the slab length by freely changing the air pressure of the swirling fluid, and after that, it is possible to continuously provide yarn convergence with the disturbance fluid. The present invention will be described in detail.

FIG. 1 is a schematic process diagram showing an embodiment of the present invention. The core yarn (1) is tension-adjusted by a magnetic tensor (3) and travels while being falsely twisted by the swirling fluid of the swirling flow nozzle (7). On the other hand, the slab-forming yarn (2) is excessively fed by the feed roller (4) at a speed higher than the running speed of the core yarn (1), and the core yarn (1) is heated by the slab-forming yarn guide (5). By being supplied to the core yarn Tl
IC winding is performed to form a slub yarn. In the present invention, this slub yarn is subsequently entangled with the agitating fluid of the turbulent flow nozzle (8), and one or more multifilament yarns (13) are separately passed through the second feed roller (14) to this slub yarn. A special slub yarn (9) is formed by supplying it to the turbulent flow nozzle (8) and combining it with the slub yarn formed by one blade, and layering and entangling it on its circumferential surface, which is then taken off by a delivery roller (10). and is wound up as a package (12) by a wind roller (11). At this time, since the balloon generated by the swirling flow nozzle (7) disturbs the stable formation of the slab, a balloon prevention guide (6) is provided upstream of the swirling flow nozzle (7).

The overfeed rate C) of the slab-forming yarn (2) relative to the core yarn (1) can be arbitrarily selected, but it is approximately 10 to 100% if the form and processability are taken into consideration.
A range of is preferred.

The length of the slab is determined by the overfeed rate of the slab-forming yarn (2) with respect to the running speed of the core yarn (1).

It is influenced by the distance between the core yarn (1) and the slab forming yarn guide (5), and generally the larger the value of both, the longer the slab will be formed, but the biggest factor is the swirl flow nozzle (7)
at the air pressure. In other words, the higher the air pressure, the higher the swirling speed (the number of false twists given to the core yarn), and the stronger the winding of the slab-forming yarn (2), but the shorter the length of the slab. Become.

Therefore, by appropriately changing the above-mentioned conditions, it is possible to select a desired slab length and provide stronger convergence to the disturbance fluid of a different disturbance flow nozzle (8). The higher the air pressure of the interlacing nozzle (8), the more the convergence is affected.

The multifilament yarn (13) supplied separately is the second
By overfeeding the core yarn (1) by a few percent with respect to the running speed of the core yarn (1) by the feed roller (14), the opening effect of the multifilament yarn is good, and the fibers are dispersed and entangled on the circumferential surface of the slub yarn to improve the bundling property. Same as above.

According to the present invention, the special slub yarn has the advantage of greatly improving its cohesiveness and causing no problems in passing through subsequent processes, as well as being able to provide diversity in texture and design effects. can be obtained.

<Examples> Next, the present invention will be described with reference to Examples, but the present invention is not limited to these Examples.

Example 2 Based on the process shown in Figure 1, cotton yarn 4O8° was used as the core yarn, acrylic filament yarn 100d/40f was used as the multifilament yarn, and the texture of the cotton yarn was A special slub yarn rich in design consisting of a slub portion exhibiting the luster unique to acrylic filament yarns was obtained.

Processing speed: 100m/min Swirling flow nozzle pneumatic crab 2.5V Turbulent flow nozzle pneumatic crab 3-stagger yarn tension crab 12f Overfeed of yarn for slab formation = 25% Overfeed rate of multifilament yarn: 2% For slab formation Distance between yarn guide and core yarn: 1505w <Effects of the invention> The present invention is constructed as described above, has high productivity without requiring complicated processes, and has high productivity due to the combination of synthetic filament yarns. It is possible to combine various materials such as silky and soft special slub yarns or special slub yarns by combining them with spun yarns that take advantage of the texture of natural fibers.
Moreover, it is possible to provide a special slub yarn with a novel design and texture.

[Brief explanation of the drawing]

FIG. 1 is a schematic process diagram showing an embodiment of the present invention. DESCRIPTION OF SYMBOLS 1... Core thread, 2... Yarn for slab formation, 3... Magnet tensor, 4... Feed roller, 5...
- Yarn guide for slab formation, 6... Balloon prevention guide, 7... Swirling flow nozzle, 8... Turbulent flow nozzle, 9.
...Special slub yarn, 10...Delivery roller, 11.
・・Wind roller, 12・・Package, 13・
...Multifilament yarn, 14...Second feed roller

Claims (1)

[Claims] When the slub-forming yarn is excessively supplied to the heated region of the core yarn where the false twist is being imparted by the swirling fluid, the yarn is wound around the core yarn to form a slub yarn, and the yarn is further entangled with the stirring fluid.
A method for producing a special slub yarn, characterized in that multifilament yarns are simultaneously supplied separately to the stirring fluid region, and the multifilament yarns are layered and intertwined on the peripheral surface of the slub yarn.