JPS61239045A - Wefting in shuttleless loom - 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 involves manufacturing a polyester filament yarn using a swirling water stream to produce a designed yarn with a mixture of sufup and nep, and continuously measuring and storing the length of the yarn. Concerning how to insert weft into a shuttleless loom.

(Prior Art) Conventionally, as a method of imparting a shape change to polyester filament yarn and then making it into a woven fabric, for example, the polyester filament yarn is over-fed differently on a false twisting machine to form a wound structure, Alternatively, a two-step process of yarn processing and fabric formation was used to apply taslan processing to give partial bulky parts and change the shape.

(Problems to be Solved by the Invention) However, with the conventional method, there is a limit to the yarn morphology that can be obtained by yarn processing itself. Since processing and fabric formation are completely different processes, there are problems in that productivity is poor and processing costs are high. The present invention solves these problems and provides a method in which yarn processing and fabric formation can be carried out continuously.

(Means for Solving the Problem) The present invention involves colliding polyester filament yarn into water forming a swirling vortex, partially folding it into yarn in the water, causing tangles, and then taking it out of the water and entangling it. The present invention provides a weft insertion method for a shuttleless loom, characterized in that the yarn is processed, then successively measured and stored, and then the yarn is inserted into the shuttleless loom as it is.

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

FIG. 1 is a schematic process diagram of the present invention. In Figure 1,
A predetermined overfeed is applied to the yarn (1) supplied from the cree μ between the feed roller (3) and the buriperry roller (7). The yarn fed out through the guide (2) and the feed roller (3) is passed through the propulsion nozzle fv (
4) Make it crash into the swirling vortex of water (5). Due to this collision action, the yarns are partially entangled and folded in the water to form slabs and kips, and then taken out of the water and entangled by the entangling nozzle 1v (6). It is stored once in the weft feeder (g), then continuously stored in the length measuring drum (b) which rotates in pressure contact with the feed row two (8) and the pressure row fi/(9), and then transferred from the guide (2) to the clamper. (2
) grips the yarn, and the jet nozzle L' (b) inserts the yarn into an opening formed by a group of warp yarns. Conventionally, the method of inserting the weft thread in a shuttled loom is to continuously insert the weft yarn through the shuttlecock and by turning the weft from left to right, but in the method of feeding the weft thread in a shuttleless loom, the yarn is inserted intermittently from one direction. That is, the opening and closing of the clamper 0 shown in FIG. 1 is repeated for each weft thread. However, up to the process before the weft feeder (g), yarn processing is continuous. Therefore, the clamper (
Even while 2) is closed, the yarn continues to be fed out. At this time, do not use the weft feeder (roller) and use the delivery roller (7) and pressure! -fi/(9) if the weft is run under tension, the tension will fluctuate and weft insertion will become difficult. For this reason, delivery roller (7) ~ pressure low /
Install a weft feeder (roller) between I/ (9), set the speed of the delivery roller (7) slightly higher than the weft insertion speed, store the excess supply in the weft feeder (roller), and continue feeding. By inserting the weft, it is possible to easily insert the weft with small tension fluctuations.

(Effect of the invention) The present invention crashes the yarn into water forming a swirling vortex, causing the yarn to partially fold and become tangled in the water.
Furthermore, by intertwining the yarn taken out of the water, a yarn with long, short, thick and thin fibers can be obtained, with excellent cohesiveness. When formed into a woven fabric, it has a silky texture with an appearance that is very similar to spun silk, and the yarn has good convergence and processability, so yarn processing and weft insertion are performed continuously at high speed, so processing costs are low. This is an extremely useful means industrially.

(Example) Next, the present invention will be specifically explained with reference to Examples.

Example Polyester filament yarn 50d/24f was processed according to the process shown in Fig. 1 under the following conditions, and the yarn was inserted as a weft on a shuttleless loom. As a result, a slab part with a wide variety of lengths and shorts was obtained. A fabric having the following characteristics was obtained.

Processing conditions: Processing speed 1001 FL/min Overfeed rate 20 inch propulsion nozzle μ Pressure 1.5 kl/ex” Entanglement processing nozzle μ
Pressure 1.5 to 915 m” Weaving speed 95
rpm

[Brief explanation of drawings]

FIG. 1 is a schematic process diagram of the present invention.

Claims (1)

[Claims] A polyester filament thread is collided with water forming a swirling vortex, partially folded into threads in the water to cause tangles, and then taken out of the water and treated with entanglement.
A weft insertion method for a shuttleless loom, characterized in that the yarn is then successively measured and stored, and then inserted into the shuttleless loom as it is.