JPS6147842A - Production of textured 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] The present invention relates to a method for producing textured yarn.

Spun filament yarn is generally smooth and has a poor texture; for example, nylon has a circular cross section, so
It is smooth and is not suitable for practical use unless it is processed in some way for special purposes. For this reason, various methods have been used to create permanent loops, swirls, entanglements, etc. in the filament bundle to give it elasticity and bulkiness not found in filament yarns.

For example, there is a treatment method that uses the turbulent flow effect of an air jet to give the filament bundle irregular tangles or bulkiness in the form of loops.

That is, a filament bundle is exposed to a turbulent flow of an air jet flow, the single filaments are separated from each other, and moved around violently within the turbulent flow, and the filaments are continuously released from the turbulent region into the atmosphere without being subjected to tension. As a result of the loosening, a bulky textured yarn containing an irregular mixture of loops, spirals, and Koinope tangles is formed.

In such a method, water is applied to the filament bundle before it is introduced into the nozzle.

For example, as shown in FIG. 8, water (2) is stored in a water tank (1), and before being introduced into the nozzle (3),
) in which water is attached to the filament bundle (4). However, in this method, a guide (5) f61 is indispensable in order to pass the filament through the aquarium.
Since one guide (6) is fixed in a position submerged in water, the filament bundle (4) has no choice but to bend at two places. For this reason, resistance occurs to the traveling filament bundle at the guide (51) (61 points), making it impossible to perform uniform processing.In addition, the contact condition between the underwater guide (6) surface and the thread contacting surface may be affected by overfeeding of the filament bundle. Therefore, the traveling speed of the filament bundle is also unstable, and therefore the introduction into the nozzle is also unstable, which is an obstacle to producing a uniform textured yarn.

Furthermore, since spinning oil is usually attached to the spun filaments, the oil gets mixed into the water tank (1), contaminates the water, and eventually the filament bundle passes through the waste water, resulting in the formation of spinning oil. It also causes a decrease in the commercial value of textured yarn.

The present invention is aimed at solving the above-mentioned disadvantages, and is designed to pass a filament bundle through constantly flowing water, without bending the filament* bundle. Embodiments of the invention will be described according to the drawings.

Figure 1 shows an example of a textured yarn manufacturing apparatus, in which a yarn feeder (8) supported by a creel stand (7) is shown.
The filament bundle (9) drawn out from ) is actively transported by feed roller devices (10) and (11),
It is supplied to the nozzle box (12). A water adhering device (13) and a fluid ejecting nozzle (14), which will be described later, are arranged in the nozzle box (12), and a filament bundle with water adhering to it is introduced into the fluid nozzle and is ejected from the nozzle by the above-mentioned action. Irregular loops, tangles, etc. occur in the filament bundle being drawn out, and the textured yarn becomes concave and is heated by the set heater (16) by the feed roller (15).
), and further transferred by feed rollers (17) to a winding device and wound into a package (18).

One embodiment of the water deposition device (13) is shown in FIGS. 2-4. That is, the open end of the water supply pipe (19) is bent to form a vertical part (21) that continues to the inclined part (20), and the tip part is further bent in a direction away from the yarn path (Yl) to form the vertical part. (21) is cut on a vertical plane, and a fourth tube is placed on the vertical part.
A guide groove (22) having a semicircular cross section as shown in the figure is formed. The shape of the groove (22) is not limited to the semicircular shape shown, but may also be U-shaped, square shape, etc. The guide groove (22) is parallel to a substantially vertical line (Yl) connecting the yarn separation point (lla) of the upper feed roller (11) and the yarn inlet (23) of the fluid nozzle (14), and the filament bundle is guided by the guide groove (22). The guide groove (22) is positioned with a distance (1) provided between the bottom wall (21) and the vertical line (Yl) so as not to contact the bottom wall and side walls of the groove (22). Therefore, the filament bundle passes through the water without coming into contact with the guide groove (22)J as shown in the fourth figure.

Figure 5 shows another embodiment of the water adhering device, in which the tip opening of the water supply pipe (24) is bent into a smooth curve and a guide groove (25) is formed.
is a vertical line, and the lower end (25a) of the guide groove is located on the yarn path.

Furthermore, FIG. 6 shows another embodiment in which the end opening (27) of the water supply pipe (26) is cut in a vertical plane, and the thread path (Yl) is the opening of the water supply pipe (26) on the field surface (27). The filament bundle passes through water flowing down from the end face of the water supply pipe (26) in a straight line substantially parallel to . W is water supply pipe (19) (2
4) This is fresh water flowing out from (26).

FIG. 7 shows an example of a fluid nozzle (14) placed next to the water deposition device (13). That is, the nozzle (14)
consists of a nozzle body (28) and a needle (29) inserted and fixed into the body. The main body (28) consists of a cylindrical hole for needle insertion, a conical part (30) following the wire hole, and a thread passage hole (31), and the thread passage hole (31) has a parallel part (32).
and an enlarged part (33). A compressed fluid supply capillary (34) is also connected to the main body.

On the other hand, 21 dollars (29) has a thread passing hole (35
), a tapered surface (36) is formed on the outer periphery of the needle tip, a gap TS) is formed between the conical surface (30) on the main body (28) side, and a thread passage hole ( 31) A disturbance zone (Z) is formed between the two. Further, chambers (37) and (38) are formed between the needle (29) and the main body (28), and one or more fluid passage holes are bored between the chambers (37 and 38), so that the compressed fluid The compressed fluid supplied from the supply capillary (34) is ejected from the chamber (37) through the hole (39) into the chamber (38), swirls or goes straight around the needle (29), and is agitated through the gap (S). The filament bundle is overfed and relaxed in the disturbance zone (Z), and is subjected to disturbance, separation, and swirling actions, and is discharged from the nozzle (14) into the atmosphere without applying tension. (40) is an O-ring made of an elastic material such as nitrile rubber provided at the fitting part of the needle (29) and the main body (28).
This prevents the compressed fluid supplied to the nozzle from leaking to the nozzle thread entry side.

Therefore, the filament bundle (9) drawn out from the yarn feeder (8) in FIG. As shown in Fig. 4, the guide groove (22) guides the water flowing through the vertical guide groove (22) of the water supply pipe (19).
The filament does not come into contact with the bottom wall or side wall of the filament, nor is it bent by guide rollers, etc. (Water passes through the water and adheres to the filament bundle.

The fresh water flowing out from the water supply pipe is allowed to adhere to the filament bundle traveling in a straight line from the feed roller to the fluid nozzle. Since there is no need for a guide to bend the filament, the resistance caused by the guide can be eliminated, and the filament bundle fed to the fluid nozzle can be kept almost constant, allowing for uniform texture processing.

In addition, in the present invention, the yarn is vertically lowered from the feed roller by almost its own weight and is sucked into the nozzle, and during this time the yarn does not come into contact with anything outside the water plate, so the overfeed rate of the yarn does not change. Therefore, the bulkiness of the manufactured yarn can be maintained uniformly.

Furthermore, when the textured manufacturing equipment starts operating, it is easy to thread the water adhesion device, and the fresh water that constantly flows out from the water supply pipe can be applied to the filament bundle, so it does not contaminate the filament bundle. .

[Brief explanation of drawings]

Fig. 1 is a schematic configuration diagram showing an example of a textured yarn manufacturing device, Fig. 2 is a partially sectional side view showing an embodiment of a water adhesion device, Fig. 3 is a front view of the same, and Fig. 4 is a guide groove diagram. A sectional view, FIG. 5 is a sectional side view showing another embodiment of the water adhesion device,
FIG. 6 is a sectional side view showing still another embodiment, FIG. 7 is a sectional view showing an example of a fluid injection nozzle, and FIG. 8 is a schematic configuration diagram showing a conventional water pipe device. (11) ... Feed roller (14) ... Fluid injection nozzle (19), (24), (26) ... Water supply pipe (Yl) ... Filament bundle (W) ... Fresh water

Claims (1)

[Claims] A feed roller that pulls out the yarn and a fluid applied to the yarn. Applying jet flow to give bulkiness Fluid injection nozzle for textured processing are arranged above and below, and the feed rollers The yarn supplied in a buffed state is passed through the above nozzle. The vehicle is driven in a straight line towards the The above nozzle is drawn by the suction action of the jet stream. suction inside, and feed roller and above The opening of the water supply pipe between the nozzle and the thread does not touch the thread. installed in close proximity to the water supply pipe, and flows out from the water supply pipe. Run the thread through clean water and attach the clean water to the thread A text that is characterized by being made to Chard yarn manufacturing method.