JP3028566B2 - Method of manufacturing fancy yarn - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a method for producing a fan sea yarn in which a bulky portion and a non-bulky portion are randomly present in the longitudinal direction of a yarn, and more specifically, The length of each part is arbitrary, and relates to a method for producing a fan sea yarn having excellent convergence.

[Prior art] Conventionally, knitted and woven products using multi-filament yarns have established their position in apparel because they have functionally superior characteristics such as elasticity, bulkiness, and wrinkle resistance. . However, in recent years, the conventional multifilament yarn knitted and woven products have become more apt to be shunned by consumers in terms of their monotonous appearance and texture, and have a variety of surface effects resulting from natural thickness unevenness and bulkiness unevenness. And a fresh feeling has been strongly desired.

Known techniques similar to the technique of intermittently providing a loop, entanglement, or slack at an arbitrary length in the longitudinal direction of the filament yarn include, for example, JP-A-56-1234.
No. 28, JP-A-56-123427 have been proposed.
Among them, in the production method, a production method of fan sea yarn using a method of negative pressure suction during stay has been proposed.

In JP-A-56-123428, since a tube for suctioning negative pressure is used for the yarn path during staying, the device becomes obstructive, it is difficult to thread the yarn, and the yarn is easily broken. May not be practical,
In addition, the straight part of the obtained FANCY yarn is not subjected to the bunching action, so that it is easy to separate single fibers, leading to lower post-processability, and insufficient dyeing resulting in insufficient dyeing. It lacked high quality and stability of quality.

[Problems to be Solved by the Invention] In view of the above-mentioned points, an object of the present invention is to improve these disadvantages, not to lose the excellent functions and features of the conventional filament yarn, and to further improve the filament yarn. Manufacture of a high-bundle Juanshi yarn with a yarn shape that changes in thickness with a rich natural taste, with loops, entanglements, or slacks imparted intermittently at any length in the yarn longitudinal direction It does not provide a method.

[Means for Solving the Problems] A method for producing a fancy yarn of the present invention that achieves the above-mentioned object has the following constitution.

That is, by performing the fluid injection treatment on the multifilament, a fanci yarn in which bulky portions and non-bulky portions are alternately present in the longitudinal direction of the yarn, and the bulky portion includes a large number of loops. , Entangled, sagged, non-bulky portions are straight portions, alternately twisted, substantially non-twisted portions converged by left and right twists, and each portion has an arbitrary length. A method for producing a fan sea yarn which is present in the yarn longitudinal direction, wherein a fluid ejection process after a swirling process is performed intermittently within the same supply.

 Hereinafter, the present invention will be described in more detail.

First, regarding the fancy sea yarn obtained in the present invention,
The bulky portion is a portion composed of a large number of loops, entanglements, or slacks that have been subjected to the fluid ejection processing. The yarn length of the bulky portion is determined by the intermittent action time, the processing speed and the excess supply rate, the fluid jet pressure, etc., and the length of the short portion is 2-3 cm, and the length is several meters. . If the thickness of the bulky portion is converted into an excess supply rate, it is preferably in the range of 1.01 to 2.00 when the straight portion of the single filament multifilament yarn is set to 1. That is, when the excess supply amount is large, the bulkiness is high, and the quality of the appearance is reduced. When the excess supply amount is small, unevenness is insignificant.

The length and thickness of the bulky portion have regular or irregular so-called randomness. Further, the combination of the length and the thickness can be appropriately selected depending on the use of the final product.

In addition, in the fanci yarn obtained by the present invention, the variation in the thickness and length of the yarn in the bulky portion and the non-bulky portion results in an excellent natural aesthetic effect. In particular, a combination in which the yarn length of the non-bulky portion is longer than the bulky portion is preferable,
An average length ratio of 1:10 or more is excellent. At 1:10 and below, the irregularities look quite flashy and artificial, and above that they look elegant and natural.

As for the thickness, the bulky portion is preferably 10 to 100% thicker in average denier than the non-bulky portion, and 20 to 40% has a natural uneven feeling. When it is 100% or more, the appearance becomes closer to a pongee tone.

On the other hand, the bulky portion has a natural appearance having a spindle shape.

Next, the non-bulky portion is a straight portion, which is a portion converged by right and left twists. The left and right twists of the straight part are made of light alternate twists and are virtually twist-free. The range of the number of twists varies depending on the thickness of the yarn and the processing conditions, but is about 5 to 50 times per meter. The straight portion where the twisting due to this light twist is easy to open is converged.

The bulky portion and the non-bulky portion each have an arbitrary length and alternately exist in the yarn longitudinal direction, but the alternating period may be either regular or irregular. However, the former is a surface effect having an artificial sensation, and the latter is preferable because a natural surface can be obtained.

Next, a single yarn is a multifilament yarn,
Any of thermoplastic synthetic fibers and semi-synthetic fibers may be used. However, among the thermoplastic synthetic fibers, polyester yarn and polyamide yarn are preferable, and in particular, denier mixed yarn,
The texture of shrinkage difference mixed yarn, deformed cross-section system, etc.
Excellent in terms of surface effects.

FIG. 1 shows an appearance view of the yarn form of the fan sea yarn obtained by the present invention. A indicates a non-bulky straight portion, and the mouth indicates a bulky portion.

 Next, a manufacturing method will be described.

In a processing method in which the multifilament of a single yarn is intermittently subjected to a fluid injection treatment to give the bulkiness of loops and slack in a fancy manner, the multifilament is formed by a pair of supply rollers and a take-up roller and has a certain amount of excess. The multifilament yarn running at the supply rate is supplied to the processing area provided with the turning temporary twist nozzle and the turbulent flow processing nozzle in the running order of the yarn.

Here, if the case where the turbulence processing nozzle is operated intermittently is described, a multi-filament that forms a loop or a bulky portion of the slack while ejecting the fluid, and runs at an excessive supply rate while the ejection of the fluid is stopped. The excessive supply amount of the yarn is absorbed by the temporary twisting action of the swirling temporary twisting nozzle to form a non-bulky portion.

In general, when the action time of the turbulent flow treatment becomes longer, the yarn length of the bulky portion of the loop or the slack becomes longer, and when the excess supply rate increases, the bulky portion of the loop or the slack becomes thicker, and the bulkiness of the yarn is uneven. It can produce fancy sea yarn.

Also, if the action time of the turning temporary twist becomes longer, loops and slacks are not formed, but the turns become alternately twisted, giving the straight portion of the multifilament yarn a bunching property. By controlling the thickness, it is possible to produce a fancy sean having a thickness unevenness and a length unevenness with a natural feeling.

This will be specifically described with reference to the drawings. First, in FIG. 2, a multifilament yarn 1 is
And a take-up roller 8 are set at a constant excess supply rate, and a processing area in which the rotating temporary twist nozzle 3, the water application device 4, and the turbulent flow processing nozzle 5 are provided in the order in which the traveling multifilament yarns travel. To supply.

The multifilament yarn 1 is a synthetic fiber such as polyamide or polyester, or a semi-synthetic fiber such as acetate or rayon. Among them, a multifilament yarn of polyamide or polyester is suitable for forming unevenness, and a multifilament yarn having a larger number of constituent filaments is more suitable, for example, a multifilament yarn of 75 deniers having 36 or more yarns. In addition, irregular cross-sections such as Y-shaped and triangular are more preferable than the round-shaped ones because the thickness unevenness portion is more easily formed, and a high-quality product can be obtained by further combining denier mix, differential shrinkage mixing and the like.

First, in the case of the process in which the turbulence processing nozzle 5 acts intermittently, the swirling temporary twist nozzle 3 is always operated. However, if a strong pressure action is applied, the effect of the turbulence processing becomes small. The absorption of the yarn amount during the stoppage is the minimum necessary weak effect, that is, to reduce the fluid pressure. For example, for a 75-denier multifilament yarn, 1 kg / cm ²
The following pressures are suitable.

To operate the turbulence processing nozzle 5 intermittently, the electromagnetic valve 6
The control device 7 performs the injection and stop of the fluid by the control.
The ratio of the length of the bulky portion to the length of the non-bulky portion can be easily changed by the control device 7 that performs the above-described injection and stop of the fluid, that is, computer control.

Note that the water application device 4 stably forms a loop and a slack.

After giving the action intermittently, the cheese 9 is rolled up.

According to the processing method of the present invention described above, it is preferable in terms of energy cost, processability, and bulkiness of loops and slacks.

As an application example, an entangled nozzle may be used instead of the injection nozzle. Further, rewinding can be performed before the cheese 9 is wound, or two or more yarns can be aligned and entangled.

Example Working was performed under the following conditions by the working process shown in FIG.

Supply yarn Polyester filament yarn 75 denier 72 filament Triangular cross section yarn Excess supply rate + 5% Rotating temporary twist nozzle constant pressure 0.5kg / cm ² Turbulence processing nozzle pressure 6.0kg / cm ² Turbulence processing nozzle average processing time 30msec Turbulence processing nozzle Non-average processing time 200 msec Take-up roller speed 300 m / min The length of the bulky part of the yarn obtained under the above conditions is 25 m on average.
cm, thickness 88 denier, non-bulky part average length 275c
m, the thickness was 76 denier, and the number of alternating twists inserted in the non-bulky part was 18 times per meter on average. When the yarn was used for the weft of a woven fabric, a product having a spun-like texture with a spun-tan appearance having a natural unevenness was obtained.

[Effects of the Invention] According to the method of manufacturing a fan sea yarn of the present invention as described above, the obtained yarn is firstly straight raw yarn in the non-bulky portion, but slightly twisted or twisted left and right alternately. Is inserted, the bunching property is high, and even if it is a single yarn, the fiber is hardly spread, so that the processability of unwinding and knitting and weaving is good.

Further, since the convergence is high, the surface and texture of the knitted fabric are good.

Variations in the thickness and length of the yarn in the bulky portion and the non-bulky portion provide excellent natural aesthetic effects.

The texture of the fabric is based on the raw yarn of the filament yarn,
The presence of the uneven part gives a spun-like feel. If the denier of the used filament yarn becomes thinner, a soft touch can be obtained, and if a single fiber filament yarn having a different shrinkage ratio is used, a product having a swelling feeling can be obtained.

[Brief description of the drawings]

FIG. 1 is an external view showing an example of a fan sea yarn obtained by the present invention, and FIG. 2 is a process chart in a method of manufacturing the fan sea yarn of the present invention. A: Non-bulky straight part B: Bulk part 1: Multifilament yarn 2: A pair of supply rollers 3: Rotating temporary twist nozzle 4: Water application device 5: Turbulence treatment nozzle 6: Solenoid valve 7: Control device 8: Take-off roller 9: Cheese

Claims (1)

(57) [Claims] 1. A multi-filament which is subjected to a fluid jet treatment to obtain a fan sea yarn in which bulky portions and non-bulky portions are alternately present in the longitudinal direction of the yarn. A large number of loops, entanglements, portions having sagging, non-bulky portions are straight portions, alternate twists, substantially twist-free portions focused by right and left twists, and each portion is A method for producing a fan sea yarn having an arbitrary length in the yarn longitudinal direction, comprising intermittently performing a fluid injection process after a swirling process within the same supply.