JPS61252333A - 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 [Industrial Application Field] The present invention relates to an improvement in the manufacturing method of silk spun decorative yarn containing a mixture of slabs and neps.

[Conventional technology]

The conventional method of producing decorative yarns with a mixture of slabs and neps using airflow is widely known as Taslan processing, but this method consumes a large amount of high-pressure air, resulting in high processing costs and high concentration. There were problems such as poor properties and difficulty in passing through subsequent processes. In addition, the patent application 1983-
According to the method shown in Publication No. 147831, a natural silk-spun designed yarn can be obtained, but the processability becomes unstable during high-speed processing, so the processing speed has to be lowered. There were problems such as high processing costs.

[Problem that the invention seeks to solve]

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

[Means for solving problems]

In the present invention, a multifilament yarn is collided with a liquid in a whirlpool state to cause partial folding and tangling of the yarn in the liquid, and then taken out from the liquid and subsequently combined with the unprocessed yarn. A method for manufacturing a designed yarn, which is characterized by subjecting multifilament yarns to an interlacing treatment.

The present invention will be described in detail below with reference to the drawings. FIG. ) is subjected to a predetermined overfeed, and the yarn (1) sent out from the feed roller (2) is caused to collide with water (4) in a swirling state by a propulsion nozzle (3). It goes without saying that this water (4) may be replaced with another liquid outside the water plate. Due to this collision action on the water surface and the vortex action in the water, the threads (1) are partially entangled and folded, forming slabs and neps.

In the present invention, it is important to collide the thread (1) with water (4) in a whirlpool state and actively immerse the thread (1) in the water. By colliding the yarn (1) with water (4), the yarn (
1) The resistance to running changes rapidly from air resistance to water resistance, and there is overfeed between the feed roller (2) and the delivery roller (6), and the yarn (1) Since there is overfeed between the delivery rollers (6) from the time when the thread collides with the swirling water (4), the thread (1) due to this overfeed is
Tangled and folded yarns (1) randomly occur in water (4) to absorb the excess supply of water.

In addition, in this case, when the yarn (1) is immersed in water, the yarn (
In case 1), the fibers are opened and the water (4) to be immersed is in a vortex state, so it is either in the normal static state or the surface of the water (4) and the thread (1) are in a vortex state.
The fiber opening becomes easier than in the turbulent flow state caused by the collision with 1, the mutual entanglement of the single fibers is promoted, and the entanglement and folding become stronger.

Further, after the yarn (1) is taken out from the water (4), it is subsequently entangled together with the unprocessed multifilament yarn (8) by an entangling treatment nozzle (5). At that time, the unprocessed multifilament yarn (8) is attached to the magnetic tensor (
9), which facilitates increasing the processing speed, and furthermore, the unprocessed multifilament yarn (8) is present in the longitudinal direction of the yarn in the form of reinforcement. The strength of the yarn is also stable.

As methods for supplying the unprocessed multifilament yarn (8), there are a tension regulating method using a magnetic tensor, a washer tensor, etc. as described above, a feeding amount regulating method using a feed roller, etc. Good too.

In addition, the entangling treatment nozzle (5) not only intertwines the yarn (1) taken out from the water (4) with the unprocessed multifilament yarn (8), but also entangles the yarn (1) with the unprocessed multifilament yarn (8). It is also extremely effective in removing water.

As shown in FIG. 2, the designed yarn obtained by the present invention has entangled and folded portions formed in swirling water (4) as slabs Qo) t nep (11). Moreover, the length and thickness of the folded and tangled parts are not uniform and vary widely.

Furthermore, since entanglement is imparted by the entanglement processing nozzle (5), floating of single fibers on the surface of the yarn due to changes in yarn length at the single fiber level caused by opening, entanglement, and folding can be eliminated. .

When carrying out the present invention, it is preferable to put a net or the like over the stirring blade (7) to prevent the yarn (1) from becoming entangled with the stirring blade (7) forming a vortex state.

〔Example〕

Hereinafter, the present invention will be explained in more detail with reference to Examples.

Example Using the apparatus shown in Figure 1, polyester multifilament yarn of 50 d/36 t was processed under the following conditions using the same yarn as the unprocessed multifilament yarn supplied immediately before the interlacing treatment. , the length of the slab and nep is 2 to 800 am, the ratio of the thickness of the slab and nep part to the non-slab and nep part is 1.2 to 6, and the entire system has excellent cohesiveness without floating single fibers. A silk-spun designed yarn was obtained.

(a) Machining speed ” 450 m/m1n (
b) Overfeed rate; +10% ()・)
Raw multifilament yarn overfeed rate (tension); 6~7P (d) Propulsion nozzle air pressure;
2. Okg/cIrL2 (e) Entanglement treatment nozzle air pressure; 4. [Effects of the Invention] According to the present invention, the slab has excellent convergence.

Spun silk design yarn with extremely variable nep shapes can be easily obtained at low cost, and its industrial value is extremely high.

[Brief explanation of drawings]

FIG. 1 is a schematic diagram showing an example of an apparatus used to carry out the present invention, and FIG. 2 is a side view of a yarn obtained by the present invention.

Claims (1)

[Claims] The multifilament yarn is collided with a swirling liquid to partially fold and tangle the yarn in the liquid, and then taken out from the liquid, and then the yarn and the unprocessed multifilament yarn are separated. A method for producing design yarn characterized by interlacing the threads.