JPS60151333A - Production of slub 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 [Technical Field of the Invention] The present invention relates to a technique for manufacturing slub yarn by applying a fluid jet hole-forming nozzle to multifilament yarn.

[Prior art and problems]

Many methods have been introduced in the past for producing slub yarns with uneven thickness in the length direction using multifilament yarns. As disclosed in Japanese Patent Application Laid-Open No. 57-199824, the two yarns are subjected to a false twisting process by giving a feed difference.

One method is to partially form a triple winding portion, but the slab shape is rectangular and has a uniform thickness, resulting in an unnatural shape. However, the triple winding part also has the disadvantage of being unstable in form and having poor high-order additive properties.

In addition, by using fluid jet hole forming processing technology, the oversupplied multifilament yarn is temporarily stored in a negative pressure box, and the stored amount is sent out intermittently to create slub yarn through turbulent entanglement. A method is known from JP-A-56-121428. Unlike the above-mentioned technology, this technique can form a soft and bulky nullab part using a single thread, but it is difficult to control the excess supply of filament threads retained in the negative pressure box. Therefore, it was an unstable processed yarn.

[Object of the present invention]

The object of the present invention is to remedy the drawbacks of such prior art.

By stably forming a spindle-shaped knotted slab part with extremely high bulk quality, and a short slab part with a relatively large fineness and a long slab part with a relatively small fineness, and weaving these, one piece is made. To easily produce and provide a fabric with great commercial value that is extremely similar to high-grade silk Nyantan-cho fabric at a low cost.

[Configuration of the present invention]

The present invention has the following configuration.

``When simultaneously supplying multiple multifilament yarns, at least one of which is a temporary curled yarn, and simultaneously entangling all the multifilament yarns in a fluid jet fabrication nozzle, 9. A method for producing a slub yarn, which comprises engaging a passing resistor that fluctuates randomly or irregularly, and then engaging a tensioning device that operates intermittently.''Next, the structure of the present invention will be explained in detail.

The present invention is a method for manufacturing slab yarn as described above, and its feature is that a m
By using a rigid or irregularly changing passing resistance element and an intermittently operating tension force device, the thickness and length of the high thread part of the umbrella, and the length of the non-forced high thread part can be freely controlled. At the same time, it is a slub yarn that is similar to raw silk (multifilament yarn that has not been crimped) and can be easily produced with a knotted/looky feel.

Further, in the present invention, it is desirable to use a special type of false twisted crimped yarn as described below.

According to the present invention, as mentioned above, at least the ordinary multi-fin non-woven yarn and the false twisted crimped yarn having special properties are separately supplied to the BLJ body jet disturbance nozzle, when the yarn passes through the nozzle. It is essential that the crimp of the false-twisted crimped yarn alternates between a state in which the crimp is apparent and a state in which it has disappeared or a state in which it slightly remains. An example of the means is the above-mentioned route. In order to form such a slab, the relationship between the supply amounts of the false twisted crimped yarn and other yarns must of course be taken into account. The component yarn element 4A constituting the slub yarn of the present invention is not particularly limited, and may be either natural fiber or recycled fiber 1 synthetic fiber. There are also no particular restrictions on the fineness, number of filaments, etc.

Further, the material of the false twisted crimped yarn used in the slub yarn of the present invention may be any thermoplastic synthetic fiber such as polyester or nylon.

The slub yarn of the present invention only needs to include at least two multifilament yarns.

It is preferable that all of the constituent yarns have a stretch recovery rate of 20% or less, and that at least one constituent yarn has false twist crimp. This is because if the stretch recovery rate of the component yarn exceeds 20%, the non-bulky yarn portion will feel bulky and lose its drapability. .

-It looks like the crimp has been weakened, but after making it into fabric,
When heat treatment is applied, latent crimp becomes apparent and the texture deteriorates. Even in the bulky thread portion, the intertwining condition becomes poor and the shape becomes unstable.

However, the non-bulky yarn part, where the expansion and contraction recovery rate of all the constituent yarns is 0%, will sag and will not lose its bulkiness, so it will have a waxy texture and a strong slimy feel. Ushiu. In addition, the loop-like material in the high yarn portion becomes fluffy, which deteriorates the quality of the slab.

Even if the component yarns that form the loop-like object in the twisted bulk yarn part are not crimped, if they are not false-twisted and crimped, they will not become a stool-like object, so the bulkiness of 811 minutes does not express supple combing. Therefore, it cannot be a high quality slab.

Next, it is desirable that the length of at least one of the component yarns in the high thread portion is at least 15 times the length of the bulky thread portion, and that they are intertwined. If it is less than 15 times, the rate of occurrence of loop-like objects will be small, and the loop-like objects themselves will be small, resulting in poor visual effects as a slab. However, this is a case where the bulkiness is less than 15 times in all the high yarn portions existing in the length direction of the yarn.
If there is a mixture of Kaza Takaito parts that are more than twice as large and Kaza Takaito parts that are less than 15 times, the F7/
- It may produce positive effects and be favorable.

Furthermore, in the non-bulk yarn portion, it is preferable that the length of all the constituent yarns is 11 times or less the length of the non-bulky yarn portion. If it is 11 times or more, the aligned component yarns are likely to separate and the processability deteriorates, and even if they are intertwined, the slack will not be IW (n), and even smaller loops will be formed, resulting in a snapping effect. 1wf stiffness becomes extremely unpleasant.Also, when fabric is used, the whole becomes rough and the quality is degraded.

Therefore, the yarn length and overfeed rate of each yarn.

The speed 9 of the yarn feeding device is set to fall within the above range by varying and adjusting the degree of engagement of the passage resistor and the tension applying device.

More preferably, the single yarn fineness of the yarn having false twist crimp is 2.
It is preferable that it is a denier or less. This directly affects the feel of the bulky yarn part, and if it exceeds 2 deniers, it tends to have a rough and hard feel.

Preferably, the elongation of the yarn to become the core yarn in the bulky yarn portion should be 50 or less. This is because the form of the slab needs to be stable after processing.
If it exceeds 0%, the shape retention of the slab will deteriorate.

What is more important regarding the false twisted crimped yarn used in the present invention is the crimp strength.

Specifically, during the manufacture of the slub portion in the process of manufacturing slub yarn, crimps are present, and the torque force generated by the crimps causes snarls to form.

Under the effect of straight stretching. The crimp must disappear or be extremely reduced.

In other words, wood with a low crimp of 111- is suitable.

Here, the stretch recovery rate and fdJ]: According to the S method, the yarn to be measured was made into a skein wound 20 times and kept in a relaxed state for 20 minutes.
After being subjected to hydrothermal treatment (90℃ for polyethylene terephthalate, 60℃ for nylon, and appropriate settings for other materials) and dried at room temperature.

This is a value measured and calculated according to the JIS method. However, if it is not possible to remove the skein as described above, apply the same hot water heat treatment to a long piece that can be sampled, and measure using the same load to obtain the γ value.

There are several methods for producing false twisted crimped yarn suitable for use in the present invention. Inu: A product that has been processed to weaken the thermal seven-fold effect of the false twisting process, a product that has been processed to reduce the heat setting time by a large amount of rljK compared to normal false twisting, and a fabric that has been processed to reduce the number of false twists of the normal false twist process. There are some that have been processed at a temperature lower than 1.Among them, those that have been processed at a lower temperature than normal; Immediately after processing, the following false-twisted processed yarns have considerable elasticity and tend to generate loops and snals during the production of slub yarns, but in the non-bulky yarn portions they form a loose wave-like form.

Even if it is heat-treated after being made into a fabric, it does not have the thick, hot feeling that normal false-twisted yarns have, and has a soft drapey texture.

Here, the passing resistance body used in the present invention imparts passing resistance to the temporary curled yarn, and causes the tension to vary regularly or irregularly, and the tension applying device applies tension to the temporary curled yarn at an actual T.
Any device may be used as long as it can change the feeding speed of the multifilament yarn guided into the fluid injection nozzle when it is not being applied in a J-like manner, such as a guide rod 11 as shown in FIG.

12, 1 is +14, and by moving the kite rod 12 in the direction of the arrow, the upper hα objective can be achieved.

Next, the tension applying device to be used is. Temporary Yoriken LT? i Apply tension to the yarn intermittently and pull the fluid jet disturbance nozzle. +y. Any method may be used as long as it can intermittently prevent the transmission of force to the upstream side of the force imparting device.For example, as shown in Fig. , 15, and tensor 1
The above objective can be achieved by opening and closing 4. Those skilled in the art call this type of gauge a tensor gauge.

Further, the fluid turbulence nozzle used in the present invention may be any type as long as it interlaces yarns under turbulent flow using pressure fluid, preferably a fluid jet turbulence nozzle having a yarn take-up ability. be.

Next, a specific example of the method for manufacturing slub yarn according to the present invention will be explained with reference to the drawings.

FIG. 1 shows one embodiment of this, in which the multifilament yarn (A) is completely supplied from the supply roller 1 and guided to the turbulent entangling nozzle 8. The multifilament yarn (B) is placed on roller 2. After false twisting between 5 rollers.

It engages the passage resistor 6 and the tensioning device 7 and is guided to the fluid jet disturbance nozzle 8 . Here, the multifilament yarn (
E) is the cabinet of roller 5 and tensioning device 8.

When relaxation tension is performed and the tension applying device (balance) 7 is closed, the tension is stored during this time.

Thereafter, the multifilament yarn (B) merges with the multifilament yarn (A) and is entangled with the fluid injection disturbance nozzle 8, but at this time, the degree of engagement of the first passage resistor B with the multifilament yarn (B) 9 fluctuates regularly or irregularly, so the multifilament yarn (B) when forming individual bulk yarn portions is exposed to the fluid jet disturbance nozzle 8.
The speed at which it is sucked into is different.

The fineness of each individual bulk yarn section changes.

After the above-mentioned processing is carried out, the thread is taken off by a take-up roller 9 to produce the slub yarn of the present invention.

The above false twisting conditions may be set so as to obtain the false twisted yarn described above, and if the yarn has already been subjected to the above-mentioned weeping process, the false twisting can be configured as shown in 2.3.4.

This process can be omitted.

The club yarn obtained by this method has a structure as shown in FIG. 6, where 21 is a bulky yarn portion! <As shown in the enlarged view of Fig. 4, the loop-like material having crimps protrudes in a so-called snal shape and exhibits a bulky quality. 22
is a non-bulky yarn part, and the two yarns are stretched and have a monofilament shape.

There are almost no loops, fuzz, sagging, etc.

[Function 1 of the present invention] The functions of the present invention are as follows.

After the multifilament yarn (A) and the false twisted multifilament yarn (B) are engaged with one fluid jet disturbance nozzle, when the multifilament yarn 71 [(B) is taken up at a speed slower than the supply speed, , tensioning device (balance)
is intermittently opened and closed, and when the tension applying device (balance) is closed and the yarn take-up force of the fluid jet disturbance nozzle is transmitted to the upstream of the tension applying device (balance), the multifilament yarn (B)
As the speed at which the fluid can be completely supplied to the fluid jet disturbance nozzle decreases, a relaxed state increases upstream of the tension applying device (balance), and the tension applying device (balance) opens and the yarn of the fluid jet disturbance nozzle increases. A take-off force is transmitted upstream of the tensioning device (balance) increasing the feeding rate of the filament yarn (B) to the fluid jet agitation nozzle while decreasing the relaxation state. This l+, y, t, the degree of attachment of the passing resistor to the multifilament thread (B) varies over time, so the fluid jet disturbance occurs when the individual tension J-Jτ device (balance) is opened. Due to the fact that the suction speed of the multifilament yarn (B) sucked by the nozzle is different by 1 or more, the supply length of the multifilament yarn (B) that is aligned and disturbed with the multifilament yarn (A) is changed in the yarn length direction. This is followed by a confounding process.

That is, when the tension applying device (balance) is opened, the multifilament yarn (BJ
Excess fJ (which is also related to the amount of lead, but the degree of engagement of the one-pass resistor with the multifilament yarn (B) is small, and the fluid jet position disturbance nozzle is able to absorb the excess supply of the multifilament yarn (B). Tension after completely suctioning (=J wave device balance)
If it closes, it is possible to form a short bulky yarn part with relatively large fineness, and the degree of retention is large, and if the tension device (balance) closes before it is completely suctioned, the tension It is possible to form a bulky yarn portion with a length corresponding to the opening of the applying device (balance), and a relatively small bulky yarn portion with a relatively fineness can be formed.In this case.

The ole body was so flaccid that I couldn't finish sucking it! When the tension applying device (balance) is opened the next time, the excess supply in the tension area will increase the speed at which the θ1c body jet shaving agitator excessively suctions the multifilament thread (B), and the amount accumulated in the relaxed state area will increase. 1. Work to maintain a calm appearance and exercise self-control.

[Effects of the present invention]

Since the present invention has the 9 functions of the structure d and 10h, even in a relaxed state, it has a self-control ability in the storage amount and can be processed in a fixed manner. Furthermore, the slub yarn obtained by this method has the following effects.

(1) It is a slub yarn using turbulent entanglement technology, and has spindle-shaped slabs with bulk properties.

(2) Due to the false twist crimp, the constituent filaments of the slab portion protrude in a loop or snal shape and have a soft knot.

(3) Even in the slab part, the single thread always becomes the core yarn, and has high shape retention against tension.

(4) In the ground yarn part, the false twisted yarn with the crimp disappeared and the raw silk are aligned, and the two yarns are hardly intertwined, or even if they are intertwined, it is clearly 3.21 parts. It is a distinguishable form. It also has a soft and bulky feel.

15) In the base yarn part, the false twisted yarn has a loose wave-like form and has a soft luster and feel.

(6) The slab part is more strongly intertwined than the ground yarn part, and the slab has high shape stability.

(7) The loop-shaped material in the slab part is twisted, giving it a so-called snal shape, giving it a smooth texture.

Furthermore, the false twist crimp makes the snal-like material round and soft.

(8) The extremes of the individual slabs 7i1♂ are different, and a short slab portion with a relatively high fineness and a long slab portion with a relatively small fineness can be formed.

(9) Kari no 5'/! ; Winding: If the single yarn fineness of the yarn is 2 denier or less, a softer slab will be obtained, and if the fineness is the same, the number of constituent yarns will increase, resulting in a dense slab.

(10) The fabric has r1 drapability and a leg feel, resulting in a luxurious slab fabric.

(11) Process power order i] It is simple, the equipment is simple, it can be produced with high efficiency and energy saving, and the cost can be reduced.

Example 1 Using the device shown in Fig. 1, multifilament yarn (A)
A slub yarn was manufactured using a polyester terephthalate 50 denier 24 filament and a multifilament yarn (B) using a polyethylene terephthalate 50 denier 48 filament as a primary thread f1.

Surface speed of supply roller 1 141 IV river n roller 2
Surface speed of 150 river/min Roller 5 surface speed
147 n7m1n Take-up roller 90 surface speed 140
m/min Temporary twist number 2200 T/m Temporary twist temperature 160℃ Fluid jet disturbance nozzle 8 pressure 4 kg/cm Fluctuation cycle of 2G passing resistor B 20 T/min Passing resistor Passing resistor length ζ 5 cm Tension applying device 7 Opening time: 40 m sec Closing time of tension imparting device 7: 08 to 1.2 sec (4) The spun yarn has an average fineness of 102 denier and a spindle shape with a soft bulk quality at the high bulk part.

The fineness varies widely from 140 to 400 deniers, and the yarn has short and thick caps and long and thin caps, and the fabrics using this yarn have a wide variety of caps and a natural Nyantano style. It was a coincidence.

Example 2 Using the same equipment, yarn, and processing conditions as in Example 1, the fluctuation period of the length of the passing resistor was 10 to 60 T/min, and the distance between Iji] If and S of the tensioning device 7 was 20 to 60 m5ec,
A slub yarn was produced.

The obtained prior kl: , the average fineness was 1 [12 denier, and the average fineness of the upper part of the cap was 170 tenier.

The fineness and length of the high bulk part are more random, making it a more variable kJ slub yarn.

4 Figure VJi) I>! l Single ft: 1t5a 'J
FIG. 1 shows a corresponding example of the slub yarn device of the present invention. FIG. 2 specifically shows the passage resistor and the four device sections shown in FIG. 1. FIG. 3 is a side view showing an example of a slub yarn manufactured according to the present invention, No. 41a+
:I is an enlarged view of the main parts of the same system.

1. Two supply rollers 2. Laura 6. Heater 4. Temporary twisting device 5: Laura 6 two-pass resistor 7: Tensioning device 8. Fluid injection disturbance nozzle 11. Guide rod 12: Guide rod 13. Gaito stick 14, Tensa plate 15, Tensa plate 21, Kaza Takabe 22 Non-cover section

Claims (1)

[Claims] (1) When a plurality of multifilament yarns, at least one of which is a temporary curled yarn, are separately supplied and entangled with one fluid injection hole-forming nozzle. A method for producing a slub yarn, which comprises engaging the tentative curled yarn with a passing resistor that fluctuates regularly or irregularly, and then engaging it with a tensioning device that operates intermittently. [2+ The method for producing a slub yarn according to claim (1), wherein the tensioning device that operates intermittently is a tensor gauge.