JPS6042294B2 - Open-end spinning method using air false twist nozzle - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION In recent years, a so-called air spinning method has appeared in which spinning is performed at high speed by passing a wire through an air nozzle that generates a swirling air flow.

Theoretically, the actual twist is inserted into the yarn that has passed through the virtual spinning device, so the S twist and Z twist are randomly distributed in the yarn produced by the conventional air spinning method due to twist migration. The fibers as a whole are untwisted, or they are untwisted by creating a twisted part inserted into the fibers at both ends of the ribbon which is expanded into a ribbon shape during yarn production, with less twisting than the fibers in the center. The question is whether it is possible to generate a yarn in which only a very small number of surface fibers are wrapped around the outer periphery of a core fiber in a real twist.In any case, the basic yarn is a non-twisted yarn, The strength was extremely low, the texture was rough, and the appearance was far inferior to that of ring yarn.

The present invention relates to a method of spinning which also uses an air morphing nozzle and which obtains a spun yarn close to a ring yarn with a real twist inserted by the open-end spinning principle.

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

The Shino S sent out by the Shino delivery roller is passed through two air warping nozzles 2 and 3 that give winding in opposite directions, and is turned into yarn Y and is wound while being pulled out by the yarn drawing roller 4. It is wound onto the take-up bobbin 5.

The principle of the open-end spinning method of the present invention is as follows. That is, when the Kase nozzle 2 is set to have a Z twist and the Kase nozzle 3 is set to an S twist, and the rotational force of the Kase nozzle 3 is made larger than the rotational force of the Kase nozzle 2, the S twist propagating from the Kase nozzle 3 is braked by the temporary nozzle 2, becomes a slightly twisted state, and propagates to the balloon 6 portion.

Therefore, the Shino S sent out from the roller 1 is twisted into an S twist by the twist propagated from the nozzle 3, and the Shino twisted into the S twist is untwisted by the Z twist of the nozzle 2. At the same time, the balloon, that is, the thread generated by the nozzle 2, is loosened by the swinging action caused by the revolution, and a part of the thread is made open-ended between the balloon 6 and the thread coming out of the roller 1, as shown in FIG. YE), the S twist escapes from the open-ended part, and after passing through the nozzle 3, an amount of Z twist corresponding to the escaped S twist is inserted into the yarn Y. In this way, As shown in FIG. 4, a yarn Y having a ring-like appearance in which actual twists in a certain direction (Z twist) are inserted up to the vicinity of the core is produced. In addition, in Figure 1, 7
is a balloon control ring, and the inner diameter of the ring 7 is narrowed to be smaller than the inner diameter of the nozzle 2.

Therefore, even if the diameter r of the balloon 6 undergoes some variation, the knot portion of the balloon 6 between the ring 7 and the roller 1 and the balloon between the ring 7 and the nozzle 2 will vary due to the aperture portion of the ring 7. The balloon 6 is stabilized without any trouble.
Further, the balloon 6 means the revolution of the thread, and therefore the number of revolutions of the balloon, which will be described later, means the revolution number of the thread.

Furthermore, the thread rotates once due to one revolution, and
There is a relationship in which the number of twists of the thread occurs, and the number of revolutions of the thread is generally equal to the number of revolutions of the thread, that is, the number of twists. In the present invention, the balloon 6
It is important whether the open-end is created in
The rotation speed of the balloon 6 was 60,000 r'. It was possible to perform the spinning of the present invention when the diameter was more than m.

As shown in Table 1, the number of thread breaks and the strength of the produced thread when pulling a 1k9 thread were measured by varying the distance e between the delivery roller 1 and the balloon control ring 7.
The spinning method of the present invention is substantially possible when the amount is 10 wfL to 12 Tmm.

FIG. 2 shows the results of optimal spinning conditions when the horizontal axis represents the cotton count Ne and the vertical axis represents the diameter r of the balloon 6.

r (ro)”.- J man “I’m in a relationship with Togaki 8.
A spun yarn having a yarn tenacity of 280 g was obtained using 1 cp-02e, in this case an ester cotton blend of 65/35 Ne45.

The cotton count Ne mentioned above is an abbreviation of English cotton count Ne.
It is a type of count designation for short fiber spun yarns, and does not necessarily mean that it is a face yarn. Also, the same thread is used in Figure 2 and Table 1. As described above, in the present invention, open-end spinning is possible even with an air false twist nozzle, and it is possible to perform open-end spinning even with the air false twisting nozzle. It is possible to obtain spun yarn with high yarn strength.

[Brief explanation of the drawing]

Fig. 1 is a diagram showing a schematic configuration of an apparatus for carrying out the method of the present invention, Fig. 2 is a graph showing the relationship between the English cotton count and the balloon diameter, and Fig. 3 is a schematic diagram showing the open end state of the 6th part of the balloon. , FIG. 4 is a diagram showing the appearance of the spun yarn obtained by the present invention. 1... Shino delivery roller, 2, 3... false twist nozzle, 4...
...Thread drawing roller, 6...Balloon, 7...Control ring, r...Diameter of balloon 6,'...
Distance between roller 1 and control ring 7, S: Shino, Y: Spun yarn.

Claims (1)

[Claims] 1 A method of spinning Shino through two air false twisting nozzles that give false twists in mutually opposite directions, in which the circumferential speed ratio of the yarn drawing roller to the Shino delivery roller is set to 1 to 1.5, and the Shino delivery roller The distance between the roller and balloon control is 10
mm to 12 mm, and the balloon rotation speed generated between the Shino delivery roller and the balloon control is at least 60,000 rpm. p. m or more, the balloon diameter at cotton count Ne is approximately (10)/(10^0^.^0^2^N
^e) An open-end spinning method using an air false twist nozzle, which is characterized in that the spinning is performed as +1.68 (mm).