JPS6220285B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for efficiently producing a decorative yarn having a spotted design effect.

BACKGROUND ART Conventionally, as a design yarn, yarn with intermittent spots has been used in the clothing and interior design fields. However, making such threads is usually time-consuming and requires the use of expensive design twisting machines. An object of the present invention is to provide a method for easily manufacturing such a designed yarn by utilizing tension cutting of the yarn, without using conventional methods.

That is, the present invention provides a method in which a continuous long fiber tow is cut into short fiber bundles, and the short fiber bundles are combined to form a thread, in which the thickness of the continuous long fiber tow A is 1/10 or less, and the continuous long fiber tow A
Yarn B with different dyeability or pre-colored
A method for producing a design yarn, characterized in that the yarn B is intermittently broken and distributed in the short fiber bundle by stretching and cutting together, and then the short fiber bundle is conjugated. It is.

The present invention will be explained in detail below. FIG. 1 is a process diagram showing a process according to an embodiment of the present invention, in which an unstretched polyester tow 1 of 20,000 De is stretched approximately 4 times in a stretching zone composed of rollers 2, 3 and a heater 4. 5000De tow A
Therefore, the tow A is draft roller 3, 5, 6
The fibers are drawn approximately 30 times and cut into short fiber bundles of 167De. Next, the short fiber bundle is given false twist by the false twisting nozzle 7, so that the fibers in the surface layer of the short fiber bundle are wound around the short fiber bundle,
It becomes what is called a bound spun yarn and is wound up by the winder 9. In this process, another material, 150De cationic dyeable polyester filament yarn B, is additionally supplied from the roller 3.
If this thread B is about the same thickness as the above-mentioned tow A, both materials will be cut smoothly, but if the thickness of the tow A and thread B is extremely large as mentioned above, then both materials will be cut smoothly. Otherwise, the thinner material will not blend in with the thicker material,
It is thrown out and cut independently, cutting intermittently. That is, when the thinner material B is cut in one place, the cut end rides on the thicker material A, which has been smoothly cut off, and is carried to the roller 6 as if by a conveyor, and the cut end is transferred to the roller 6. When the material B is gripped, it is pulled again and cut into sharp pieces. In the method of the present invention, by repeating such intermittent cutting, the obtained thread is
As shown in the figure, the cationic dyeable polyester fibers solidify intermittently and become entwined spun yarns, so when this is made into woven or knitted fabrics and dyed with cationic dyes, it produces stains, just like yarn with cotton dregs. A fabric with spots is obtained.

In this case, in order for yarn B to break intermittently, it must be extremely different in thickness from tow A, and at least yarn B must be 1/10 or less of tow A. Must be. Furthermore, in the sense that the yarn B does not blend into the tow A, it is also effective to twist the yarn B or bind it with an interlace or an oil agent for this intermittent cutting. Furthermore, in order to make the resulting spots more noticeable, it is desirable that yarn B has a different dyeing property than tow A, or that it is colored in advance. For the former, for example, as in the above example, a third component is added to the polymer to change the dyeability, or the same polymer is used as yarn B, but undrawn yarn is used to impart dyeing differences due to the difference in orientation. how to,
Alternatively, it is effective to use different types of fibers such as polyester, nylon, rayon, and acetate. Regarding the latter, for example, so-called spun-dyed yarns made by mixing pigments into polymers,
So-called yarn-dyed yarn, which is a yarn that has been dyed in advance, is effective. Also, the period of intermittent cutting is rollers 3, 5, and 6.
It changes depending on the gauge, draft magnification, drafting speed, etc., so you can change it appropriately by adjusting it to your favorite pattern.

As described above, according to the method of the present invention, it is possible to easily create a twisting yarn without using a special design twisting machine or the like.
It is possible to create a design yarn with a spotted design effect.

[Brief explanation of the drawing]

FIG. 1 is a process side view showing a process according to an embodiment of the present invention, and FIG. 2 is an enlarged side view showing an example of a yarn obtained by the process shown in FIG. A... Continuous long fiber tow, B... Yarn.

Claims (1)

[Claims] 1. In a method in which a continuous long fiber tow is cut into short fiber bundles, and the short fiber bundles are joined to form a thread, the thickness of the continuous long fiber tow A is 1 /10 or less, and the continuous filament tow A has a different dyeability or is colored in advance, and by cutting the thread B together with the thread B, the thread B is intermittently broken. A method for producing a decorative yarn, which comprises distributing it in a short fiber bundle and then conjugating the short fiber bundle.