JPS6039431A - Production of fancy 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 [Technical Field] The present invention relates to an improvement in the manufacturing method of silk spun design yarn containing a mixture of slabs and neps.

[Prior art]

Traditionally, the method of producing decorative threads with a mixture of slabs and neps using airflow is widely known as taslan processing, but this method...

There were problems such as high consumption of high-pressure air, high stress during processing, and poor convergence, making it difficult to pass through subsequent processes.

[Purpose of the invention]

An object of the present invention is to provide a method for manufacturing silk spun decorative yarn with excellent cohesiveness at low cost.

[Structure of the invention]

The present invention involves colliding multifilament yarns into a liquid surface in a vortex state, causing partial folding and tangling of the yarns in the core liquid, and then taking them out of the liquid and subsequently subjecting them to an entanglement treatment. This is the manufacturing method of the distinctive design thread.

The present invention will be described in detail below with reference to the drawings.

FIG. 1 is a partially longitudinal side view showing an example of an apparatus used in carrying out the present invention. In the figure, the yarn 1 is given a predetermined overfeed between the feed roller 2 and the delivery roller 6, The thread 1 sent out from the thread 2 collides with water 4 in a whirlpool state by a propulsion nozzle 3. Due to this collision action and vortex action, the threads 1 are partially entangled and folded together in the water 4, forming slabs and neps.

In the present invention, the yarn 1 is collided with water 4 in a whirlpool state, and the yarn 1 is
It is important to actively immerse the material in water.

By colliding the yarn 1 with water 4, the resistance to running of the yarn 1 changes rapidly from air resistance to water resistance, and overfeed (substantially) occurs between the feed roller 2 and delivery roller 6. In order to absorb the oversupply portion of the yarn L caused by this overfeed, the yarn L is overfed between the delivery rollers 60 from the time when the yarn L collides with the water surface 4 in a whirlpool state. Tangle and folding of yarn l occur randomly.

In this case, when the yarn 1 is immersed in water, the lf yarn opens, and since the water 4 in which it is immersed is in a vortex state, 6 it is in a normal static state or the disturbance caused by the collision between the surface of the water 4 and the yarn 1. It is easier to open the fibers than in a flowing state, promoting intertwining of single fibers, and making the entanglement and folding stronger.

Furthermore, after taking out the yarn I from the water 4, it is subsequently entangled by the entangling treatment nozzle 5.
Since the water attached to K has a large mass, strong entanglement is possible with a small amount of air consumption, which is extremely effective in simultaneously removing water and improving convergence.

As shown in FIG. 2, the designed yarn obtained by the present invention has tangled and folded portions formed in the swirling water 4 as slabs 8. It is formed as a nep 9. Moreover, the length and thickness of the folded and tangled parts are not uniform and vary widely.

Furthermore, since entanglement is applied by the entanglement treatment nozzle 5,
It is possible to eliminate floating of single fibers on the yarn surface due to changes in yarn length at the single fiber level induced by opening, entanglement, and folding.

In carrying out the present invention, in order to prevent the yarn 1 from becoming entangled with the stirring blade 7, it is preferable to place a net just above the stirring blade 7.

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

〔Example〕

When polyester multifilament yarn 50 d/24 f was processed using the apparatus shown in Fig. 1 under the following conditions, the length of the slab and nep was 0.2 to 1°, and the difference between the slab and nep portion and the non-slab and nep portion was found. An excellent spun silk design yarn with a thickness ratio of 1.2 to 6 and good cohesiveness without floating single fibers throughout the system was obtained.

(a) Processing speed: 100 m/min) Overfeed rate: 20 yu (c) Propulsion nozzle air pressure: 1.5 kl/ext”)
Entanglement treatment nozzle air pressure: 1.5 kg/aN (running, stirring blade rotation speed: 60 Or, p, B [Effects of the invention]) According to the present invention configured as described above, silk spun design yarn with excellent cohesiveness can be produced at low It can be easily obtained at low cost,
Its industrial value is extremely large.

[Brief explanation of drawings]

Fig. 1 is a partially longitudinal side view showing an example of the device used to carry out the present invention, and Fig. 2 is a side view of the yarn obtained by the present invention. is a multifilament yarn, (2) is a feed roller, (3) is a propulsion nozzle, (4) is water, (5) is an entangling treatment nozzle, (6) is a delivery roller, and (7) is a stirring blade. (8) is a slab, and (9) is a nep.

Claims (1)

[Claims] The method is characterized in that the multifilament yarn is collided with the liquid surface in a whirlpool state, causing partial folding and tangling of the yarn in the liquid, and then taken out from the liquid and subsequently subjected to an entanglement treatment. Manufacturing method of design thread.