JPS5933687B2 - Method for producing spun yarn-like specially processed yarn - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a novel method for producing a spun light-style specially processed yarn, and more specifically to a method for producing a spun light-style specially processed yarn with excellent cohesiveness using multifilament yarn. be.

Conventionally, as a method for producing spun light-air-processed yarn using multifilament yarn, there has been a known method in which a single yarn or multiple yarns are supplied in so-called taslan processing, that is, bulk processing using a non-swirling air-jet fluid flow. However, in all of these methods, it is customary to supply multifilament raw silk (raw silk), so although the resulting product has an appearance similar to 1st grade spun yarn, it has a poor texture. In general, it is undesirable because it looks like a raw thread, and when trying to improve the cohesiveness of the thread for the purpose of improving the process efficiency of Shikamo weaving and knitting, it is necessary to improve the fluid pressure of the taslan processing. However, there are drawbacks such as there are limits to improving the fluid pressure both economically and in terms of equipment.

The present invention aims to improve the above-mentioned conventional drawbacks and provide a new manufacturing method for special processing of spun fiber optics that can produce products with high cohesiveness and thinness similar to spun yarn products. However, after the thermoplastic synthetic fiber multifilament yarn is false-twisted and crimped, it is subsequently introduced into a non-swirling air-jet fluid region, and the same or different kind of multifilament yarn is introduced into the fluid region at a rate of 10% or more, 200% more than the yarn. The following is a method for producing spun light-finished specially processed yarn, which is characterized in that fluid treatment is carried out by introducing and entraining at an excessive supply rate.

Next, to explain the present invention in detail, the first configuration of the present invention is that the thermoplastic synthetic fiber multifilament yarn A is false-twisted, and after the false-twisting process, it is introduced into a non-swirling air jet fluid region, and The purpose is to perform fluid treatment by oversupplying and entraining multifilament yarns B of the same or different types.

In other words, if the fluid treatment is applied immediately after false twisting, the yarn will be processed at the point where the swirling properties given by the false twisting process are the highest, so in addition to the fiber entanglement in the fluid, the twisting will improve the cohesiveness. This improves yarn entanglement even at low injection fluid pressure.

In addition, as a result of various comparative studies of the case in which fluid processing is performed by supplying pre-falsified twisted yarn and green thread in normal Taslan processing, and the case where fluid processing is performed immediately after false twisting as described above. It has been found that, in order to obtain a yarn with the same degree of conjugation, the latter fluid processing immediately after false twisting requires a fluid pressure approximately 24 times that of the former.

Incidentally, the reason why the fluid pressure when the former false-twisting process is performed in advance and then subjected to the taslan process is higher than the latter is because the turning performance deteriorates over time after the false-twisting process.

Further, in a second configuration of the present invention, during the fluid treatment in the first configuration, the B yarn is placed in the fluid region at least 10% more than the A yarn.
The aim is to supply at an oversupply rate of 0.00% or less.

This is an essential requirement in order to use yarn A as a core yarn and yarn B as an effect yarn.

Therefore, overfeeding B yarn by at least 10% over A yarn means that the loops generated by the effect yarn will float slightly higher than the core yarn, and the overfeed rate is the minimum necessary to obtain the spinning light effect. It is.

However, if the oversupply rate becomes too high, the core yarn will be completely surrounded by the effect yarn, and the performance of the false twisted textured yarn possessed by the core yarn will be lost, and the effect of using the false twisted textured yarn will be lost.

When the overfeed rate is greater than 200%, the apparent thickness of the yarn increases, and a bulky yarn with desirable cohesiveness cannot be obtained unless the processing speed is reduced or the fluid pressure is increased excessively.

In addition, in the case of bulky yarns where the performance of false twisted yarns is lost due to high overfeeding rates, the resulting product looks like spun yarn at first glance, but has a texture similar to that of raw yarn and is poor in elasticity, resulting in a normal taslan finish. .

In the present invention, it is necessary to perform the fluid treatment with a non-swirling fluid flow, and with a swirling fluid flow, the mixed fiber entanglement of the false twisted yarn and the multifilament yarn is insufficient, and the false twisted yarn is The result is a thread with multifilament thread wrapped around it in an unstable manner.

In this way, the characteristics of the spun light-style specially processed yarn obtained in the present invention are that the core yarn is a false twisted yarn, and the effect yarn is a plain yarn, which is strongly mixed and entangled under oversupply. The appearance effect of the product is determined by the raw end side of the effect yarn.
The texture is determined by the characteristics of the false twisted yarn.

Therefore, it is possible to obtain a special texture effect by using special false twisting processing conditions, or use yarns with irregular cross sections, filament yarns, yarns with a large number of constituent fibers, yarns of different colors, yarns made of different materials, yarns with different dyeing properties, etc. It is also possible to create special appearance effects.

In addition, in the present invention, using a false twisted yarn as a core yarn is a good means for improving intertwining properties, but conversely, the resulting bulky yarn may have some swirling properties.

This may cause problems in the process and product quality in applications such as knitting, so it is appropriate to eliminate this swirling property, and the bulky yarn that has obtained high entangling property will not reduce the cohesiveness in the subsequent process. In order to prevent this from occurring, it is also possible to carry out setting through a thread setting process following the main processing.

Specifically, for example, using a two-heater false twisting machine, the nucleic acids are false twisted in a false twisting area with a first heater and subjected to fluid treatment in a fluid area immediately after exiting the first delivery roller to release nucleic acids. This can be carried out by continuously guiding the yarn to a second heater for setting processing, and then winding it up via a second delivery roller.

Next, the present invention will be specifically explained using illustrated examples.
FIG. 1 is a side view showing an example of the state in which a spun light-finished specially processed yarn is manufactured according to the present invention, and illustrates a case where a one-hitter false twisting machine is used.

In FIG. 1, a thermoplastic synthetic fiber multifilament yarn 2 supplied from a package 1 is supplied at a constant speed by a feed roller 3, and guided to a false twisting spindle 5 while in contact with a heater 4, where it is subjected to a false twisting process. It is led to a fluid treatment device 7 via a delivery roller 6.

At this time, the filament yarn 9 pulled out from another package 8 is brought to the fluid processing device 7 by a feed roller 10 at a constant speed of 10% or more and 200% or less than the supply speed of the delivery roller 6. The fibers are supplied as threads, entangled and mixed by fluid action in the fluid treatment device 7, and wound into a package 13 by a winding drum 12 as a combined bulky thread 11.

Furthermore, FIG. 2 is a side view showing another example of the state in which spun light-style specially processed yarn is manufactured by implementing the present invention, and exemplifies the case where a two-hiter false twisting machine is used. It is.

In the figure, the thermoplastic synthetic fiber multifilament yarn 15 supplied from the package 14 is fed to the feed roller 1
6 at a constant speed, and is guided to the false twisting spindle 18 while in contact with the first heater 17, where it is false twisted.
It is led to a fluid treatment device 20 via a delivery roller 19.

At this time, the filament yarn 22 pulled out from another package 21 is fed by the feed roller 23 at a rate of 10% or more than the feed rate of the first delivery roller 19, 20% or more.
It is supplied as an entrainment yarn to the fluid treatment device 20 at a constant rate of 0% or less, and is entangled and mixed by the fluid action in the fluid treatment device 20 to become a combined bulky yarn 24, and then immediately fed to the second heater. The package 25 is guided into the package 25, where the system shape, rotational properties, etc. are heat-fixed, passed through a second delivery roller 26, and then wound up into a package 28 by a winding drum 27.

As described above, the present invention, when false-twisting a thermoplastic synthetic fiber multifilament yarn, introduces the yarn into a non-swirling air-jetting fluid region after the false-twisting process, and also applies multifilament yarns of the same or different types to the false-twisting process. 10% more than the thread in the fluid region
As described above, the present invention has a configuration in which entrainment processing is performed while oversupplying 200% or less, and according to the present invention, it is possible to easily obtain a spun light style specially processed yarn with excellent convergence using multifilament yarn. There are other effects.

EXAMPLES Next, the present invention will be specifically explained using Examples, but the present invention is not limited by these Examples.

Example 1 Using the apparatus shown in FIG. 2, polyester synthetic fiber multifilament yarns 75d/36f (semidal,
Polyester synthetic fiber multifilament yarn 75d/48f (semi-dull, circular cross-section yarn) was used as the companion yarn 22, and processing was performed under the following conditions.

(1) First heater temperature: 210°
C (2) Second heater temperature: 200°C
(3) Number of false twists: 3350 T/M (
Z) (4) False twisting spindle rotation speed: 37.5xl
O' R/M (5) Feed low to first delivery roller 19: 48.0
% Ura-3 overfeed rate (6) Fluid treatment device: Taslan nozzle (7
) Air fluid pressure: 3.5 Yu/d The obtained textured yarn was a special bulky yarn in which mixed fibers and intertwined loops were tightly entangled on the stretchable false twisted textured yarn.

In addition, this yarn is used as a knitting yarn to knit a double chassis,
After scouring and dyeing, a product with excellent properties was obtained that looked like a spun yarn, had the elasticity of a false-twisted yarn chassis, and was very similar to a worsted wool product.

Example 2 Using the apparatus shown in FIG. 1, polyester synthetic fiber multifilament yarn 100d/48f (bright,
Processing was carried out under the following conditions using triacetate multifilament yarn 55 d/26 f (bright) as the companion yarn 9.

(1) Heater temperature: 220℃ (
2) Number of false twists: 3000T/M (Z
) (3) False twisting spindle rotation speed: 20X104
R/, M (4) for telly roller 6
: 3o% Overfeed rate of feed roller 10 (5) Fluid treatment device : Kuslan nozzle (6
) Air fluid pressure: 3. The processed paper obtained at Okg/i was a bulky yarn similar to silk spun yarn, in which triacedate was entangled and intertwined with the false twisted yarn of polyester to form a loop.

In addition, this thread is used for warp and warp threads to weave twill fabrics, scouring,
When the fabric was subjected to printing after preliminary bleaching, an extremely elegant high-class women's clothing fabric with an appearance and texture similar to spun silk was obtained.

[Brief explanation of drawings]

The drawings illustrate the state in which the present invention is carried out to produce spun light-finished specially processed yarn. Fig. 1 is a side view when a one-hitter false twisting machine is used, and Fig. 2 is a side view when a one-hitter false twisting machine is used. FIG. 3 is a side view when a two-hiter false twisting machine is used. In the figure, 1 and 14 are packages, 2 and 15 are supply systems, 3 and 16 are feed rollers, 4 and 17 are (first) heaters, 5 and 18 are false twisting spindles, and 6 and 19 are (first)
) Delivery roller, 7, 20 is a fluid treatment device, 8,
21 is a package, 9, 22 is a companion yarn, 10.23 is a feed roller, 11, 24 is a combined bulky yarn, 12.27
is the winding drum, 13°28 is the package, and 25 is the second
The heater 26 indicates the second pulley roller.

Claims (1)

[Claims] 1. A thermoplastic synthetic fiber multifilament yarn is subsequently introduced into a non-swirling air jet fluid region after false twisting and crimping, and the same or different kind of multifilament yarn is introduced into the fluid region at a rate of 10% or more and 200% or less than the yarn. 1. A method for producing spun light wind specially processed yarn, characterized in that fluid treatment is carried out by introducing and entraining the yarn at an oversupply rate of .