JP2002309460A - Fluid-treating apparatus for yarn, apparatus and method for producing yarn - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a fluid-treating apparatus for a yarn capable of decreasing the fluctuation of the entanglement of filaments between the yarns in the simultaneous entangling treatment of plural synthetic fiber yarns with a pressurized fluid. SOLUTION: The fluid-treating apparatus is provided with an inlet port for a pressurized fluid, a connection channel connected to the inlet port, a fluid supplying member having plural branches connected to the connection channel, a supply channel connected to each branched channel, a nozzle having plural ejection holes connected to the supply channel and a yarn path placed opposite to the ejection hole of each nozzle. The apparatus satisfies the formula 1.5<=Aj/Ai<=45 wherein Ai is the sum of minimum cross-sectional areas of plural ejection holes of each nozzle and Aj is the minimum cross-sectional area of the branched channel or the supply channel corresponding to each nozzle.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a synthetic fiber yarn composed of a large number of filaments which is entangled with each other by the action of a pressurized fluid, that is, entangled. Regarding the applied yarn fluid treatment device, in particular, each of a plurality of synthetic fiber yarns having a small inter-thread distance (supplied yarn interval) supplied to the treatment device is subjected to an operation such that the convergence variation between them is small. The present invention relates to a yarn fluid treatment device for performing entanglement processing with two yarn fluid treatment devices, and a yarn production apparatus and a production method using the same. In addition, this yarn fluid treatment apparatus is also excellent in handleability.

[0002]

2. Description of the Related Art When bundles of synthetic fiber yarns composed of a large number of melt-spun filaments are poor, unwinding is performed during the running of the yarn in the manufacturing process or continuously taking out the yarn from a wound yarn package. At the time of weaving and knitting,
Thread breakage (filament breakage) tends to occur, and the productivity of the yarn itself or a processed product obtained therefrom decreases.

[0003] For this reason, in the manufacturing process of synthetic fiber yarn,
2. Description of the Related Art A yarn fluid treatment apparatus that applies a jet of a pressurized fluid and a vortex generated by the jet to a yarn, entangles filaments, and performs entanglement processing to give the yarn a convergence property has been used.

[0004] The entangled yarn is required to have high convergence and uniform shape. If the length of the entangled portion where the filaments are entangled and the length between the entangled portions is small and the form of the yarn is uniform, the gloss of dyed woven and knitted products will be uniform, and the quality of woven and knitted products will be uniform. Becomes stable.

[0005] As disclosed in Japanese Patent Publication No. 5-503963, there is known a yarn fluid treatment apparatus for simultaneously tangling a plurality of melt-spun synthetic fiber yarns. Such a device is required to be entangled so that the convergence variation of each yarn is reduced.

The device disclosed in Japanese Patent Publication No. 5-503963 discloses a fluid inlet (2) for a pressurized fluid which constitutes a flow path for a pressurized fluid.
3), an opening (22), a hollow passage (21) and two jets (19) (see FIG. 3 of the publication). However, judging from the disclosed figures, the hollow passage (21)
Is about 60 times larger than the total cross-sectional area of the jet (19), but the total (one in this case) of the cross-sectional area of the fluid inlet (23) is larger than that of the hollow passage (21).
Is clearly smaller than the sum of the cross-sectional areas of.

In the case of such a structure, the fluid inlet (23)
Cannot supply the pressurized fluid at a sufficient flow rate to the hollow passage (21), and the jet flow from the jet (19) communicating with the hollow passage (21) is reduced, so that the yarn is given high convergence. It becomes difficult. Further, as the flow rate of the pressurized fluid becomes insufficient, the pressure drop in each hollow passage (21) increases, and the flow state of the fluid becomes unstable. When the state of the flow becomes unstable, first, a difference occurs in the jet flow rate between the two jets (19), the symmetry of the jet is lost, and the jet and the vortex can efficiently act on the yarn. Disappears. That is, the filaments forming the yarn tend to gather on the jet side where the jet flow rate is small, or the filaments are less likely to be entangled by deviating from the region of action of the jet and the vortex, not only reducing the convergence of the yarn, In addition, there is a problem that the uniformity of the yarn form is reduced.
Further, a flow rate variation of the pressurized fluid between the hollow passages (21) occurs, which causes a problem of convergence variation among a plurality of yarns.

[0008]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, an object of the present invention is to stably jet a pressurized fluid from an injection port when a plurality of synthetic fiber yarns are simultaneously entangled. Accordingly, it is an object of the present invention to provide a yarn fluid treatment device capable of imparting confounding with little convergence variation between yarns.

Another object of the present invention is to provide a yarn fluid treatment device capable of minimizing the distance between yarns. When the distance between the yarns is small, other devices related to the synthetic fiber yarns are compact and lightweight, for example, the length of the rotating roller for transferring the yarn is shortened, and the equipment cost and the driving energy of the rotating roller are reduced. In addition, the production cost of the synthetic fiber yarn is reduced.

[0010]

A yarn fluid treatment apparatus according to the present invention for solving the above-mentioned problems is provided with a pressurized fluid inlet to which a pressurized fluid supply pipe is connected, and an internal passage from the inlet. A fluid supply member having a communication passage extending in a direction and a plurality of branch passages provided at intervals in the communication passage; a supply passage for pressurized fluid connected to the respective branch passages; and a supply passage for each of the supply passages. In a yarn fluid treatment device including a nozzle having a plurality of injection ports provided at intervals and a yarn passage provided for each nozzle so as to face the injection port, the yarn fluid treatment device is provided for each nozzle. When the total sum of the minimum cross-sectional areas of the plurality of injection ports is Ai, and the minimum cross-sectional area of any of the branch passages or the supply passages provided for each nozzle is Aj, 1.5 ≦ It is characterized by having a relationship of Aj / Ai ≦ 45.

In the yarn fluid treatment apparatus according to the present invention,
When the sum of Aj with respect to all the nozzles is Ajt and the sum of the minimum cross-sectional areas in either the introduction port or the communication path is Ak, 1.5 ≦ Ak / Ajt
It is preferable to have a relationship of ≦ 30.

[0012] A yarn manufacturing apparatus according to the present invention for solving the above-mentioned problems includes a yarn fluid processing apparatus according to the present invention, and each of the plurality of yarn passages provided in the yarn fluid processing apparatus. And yarn take-up means for taking up each of the yarns subjected to the fluid treatment with the pressurized fluid in each of the yarn passages.

[0013] A method of manufacturing a yarn according to the present invention which solves the above-mentioned problems, comprises supplying a yarn to each of the plurality of yarn passages of the yarn fluid treatment apparatus according to the present invention, and Each of the yarns is subjected to fluid treatment with the pressurized fluid by a treatment device, and each of the fluid-treated yarns is collected.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a yarn fluid treatment apparatus according to the present invention will be described more specifically with reference to the drawings.

FIG. 1 is a schematic perspective view of one embodiment of the yarn fluid treatment apparatus of the present invention. A plurality of nozzles 1 (note: eight nozzles 1 are shown in FIG. 1) are integrally fixed together with housing members 3 at both ends by bolts 4 via spacers 2. Further, at the location of the housing member 3, it is juxtaposed on the fluid supply member 6 by bolts 5.

FIG. 2 is a sectional view taken along the line XX in FIG. The plurality of nozzles 1 are juxtaposed at an interval L on the fluid supply member 6 corresponding to the interval between the plurality of yarns Y (FIG. 1). And between the nozzles 1 adjacent to each other. The axes of the branch passage 8 and the supply passage 9 coincide with each other, and a fluid seal member 10 is provided to prevent the pressurized fluid from leaking outside.

The pressurized fluid is first supplied from a pressurized fluid supply source (not shown) such as a compressor to an inlet 11 provided in the fluid supply member 6, and then to a communication passage 12,
After being supplied to the branch path 8 and the supply path 9 in order, the fuel is injected from the injection port 13 toward the yarn path 7.

Next, a yarn Y composed of multifilaments
A nozzle 1 for performing entanglement processing on (FIG. 1) using a pressurized fluid will be described with reference to an enlarged view of a nozzle portion shown in FIG. The nozzle 1 is provided with a supply path 9 for the pressurized fluid and two injection ports 13a and 13b. Two injection ports 13
The cross-sectional areas and lengths of a and 13b are the same within the dimensional tolerance, and the two injection ports 13a and 13b communicate with the supply path 9 in a symmetrical positional relationship with respect to the center line B.

The yarn fluid treatment apparatus according to the present invention is composed of a plurality of nozzles 1, all of which have the same shape within a dimensional tolerance. Also, each branch path 8 provided for each nozzle 1
Are the same within dimensional tolerances.

Each yarn Ya supplied to each yarn passage 7
A pressurized fluid used when performing confounding treatment on (FIG. 1)
For example, the supply amount of air is defined by a minimum cross-sectional area of a cross section perpendicular to the flow direction of the pressurized fluid in the introduction port 11, the communication path 12, the branch path 8, and the supply path 9 shown in FIG.
The ejection amount of the pressurized fluid from the injection port 13 is defined by the minimum cross-sectional area of the cross section of the injection port 13 perpendicular to the flow direction of the pressurized fluid. The minimum cross-sectional area in the yarn fluid treatment device according to the present invention is defined as follows.

As shown in FIG. 3, when the cross-sectional area of each of the injection ports 13a and 13b in the axial direction is uniform, the cross-sectional area of each of the injection ports 13a and 13b is defined as the minimum cross-sectional area. You. In the case of the nozzle 1 shown in FIG. 3, the minimum cross-sectional area of the injection port 13a is Ai1, the minimum cross-sectional area of the injection port 13b is Ai2, and the sum of both is the minimum cross-sectional area of the injection port 13a and the injection port 13b. It is defined as the sum Ai.

On the other hand, another embodiment of the nozzle 1 shown in FIG.
Is an example in which the cross-sectional area of the injection ports 13a and 13b there continuously changes in the axial direction. Further, the nozzle 1 of another embodiment shown in FIG.
This is an example in which the cross-sectional areas a and 13b change discontinuously (stepwise) in the axial direction. In any of these cases, the minimum cross-sectional areas of the two injection ports 13a and 13b shown in FIGS. 4 and 5 are Ai1 and Ai2, respectively, and the sum of both is defined as the total sum Ai of the minimum cross-sectional areas.

The minimum cross-sectional area Aj in either the branch passage 8 or the supply passage 9 for supplying the pressurized fluid to the injection ports 13a and 13b is defined as follows.

As shown in FIG. 3, when the cross-sectional area of the branch passage 8 or the supply passage 9 in the axial direction is uniform and the cross-sectional areas of both are the same, one of the cross-sectional areas is the minimum cross-sectional area Aj. Defined.

On the other hand, another embodiment of the nozzle 1 shown in FIG.
Is an example in which the cross-sectional area of the supply passage 9 there is discontinuously (stepwise) changing in the axial direction. In this case, a portion of the supply passage 9 having a smaller sectional area than the branch passage 8 is defined as a minimum sectional area Aj. On the other hand, in the nozzle 1 of another embodiment shown in FIG. 7, the cross-sectional area of the branch passage 8 is small, and this is defined as the minimum cross-sectional area Aj.

In the yarn fluid treatment apparatus according to the present invention, a plurality of branch passages 8 and supply passages 9 are provided corresponding to the plurality of nozzles 1, and the sum of the minimum cross-sectional areas Aj is: Ajt.

The sum Ak of the minimum cross-sectional area in either the inlet 11 for supplying the pressurized fluid to the branch passage 8 and the supply passage 9 or the communication passage 12 is defined as follows.

As shown in FIG. 2, when the cross-sectional area in the axial direction of the inlet port 11 or the communication path 12 in the fluid supply member 6 is uniform and the cross-sectional areas of both are the same, one of the two The area is defined as the sum Ak of the minimum cross-sectional areas.

On the other hand, in the fluid supply member 6 of another embodiment shown in FIG. 8, the portion of the inlet 11 having a smaller sectional area than the communication passage 12 is defined as the sum Ak of the minimum sectional area.

On the other hand, in the fluid supply member 6 of another embodiment shown in FIG. 9, the portion of the communication passage 12 is defined as the sum Ak of the minimum sectional area.

As shown in FIGS. 2 and 8, in the present invention, even when the minimum cross-sectional area is one,
The sum is defined as Ak.

Further, in the fluid supply member 6 of another embodiment shown in FIG. 10, the sum of the minimum cross-sectional areas Ak1 and Ak2 of the two inlets 11a and 11b is larger than the minimum cross-sectional area of the communication passage 12. Is small, this sum is defined as the sum Ak of the minimum sectional area.

On the other hand, in the fluid supply member 6 according to another embodiment shown in FIG. 11, on the contrary, the sum of the minimum sectional areas Ak1 and Ak2 of the two introduction ports 11a and 11b is larger than the sum of The minimum sectional area is smaller, and this minimum sectional area is defined as the sum Ak of the minimum sectional areas.

In the fluid supply member 6 of another embodiment shown in FIG. 12, the cross-sectional area of the inlet 11 changes continuously in the axial direction, and the fluid supply member 6 of another embodiment shown in FIG. In the figure, the cross-sectional area of the inlet 11 changes discontinuously (stepwise) in the axial direction. In each of these cases, since the minimum cross-sectional area of the inlet 11 is smaller than the cross-sectional area of the communication path 12, the minimum cross-sectional area of the inlet 11 is defined as the sum Ak of the minimum cross-sectional areas.

Further, in the fluid supply member 6 of another embodiment shown in FIG. 14, the two inlet portions 11a which continuously change in the axial direction are smaller than the minimum sectional area of the communication passage 12.
Since the sum of the minimum cross-sectional areas Ak1 and Ak2 of the first and the second sections 11b is small, this sum is defined as the sum Ak of the minimum cross-sectional areas.

On the other hand, in the fluid supply member 6 of another embodiment shown in FIG. 15, the sum of the minimum cross-sectional areas of the two inlets 11a and 11b whose cross-sectional areas change discontinuously (stepwise) is calculated. Also, since the cross-sectional area of the communication passage 12 is small, this cross-sectional area is defined as the total sum Ak of the minimum cross-sectional areas.

When the factors defined above are used and these factors satisfy the following relations, it has been found that the yarn fluid treatment apparatus solves the above-mentioned problem of the present invention.

First, when looking at one nozzle 1,
The sum of the minimum cross-sectional areas of the plurality of injection ports 13 is Ai,
Alternatively, the minimum sectional area in one of the branch roads 8 is Aj
Then, it is important that the relationship 1.5 ≦ Aj / Ai ≦ 45 is satisfied.

When the value of Aj / Ai is less than 1.5, the supply amount becomes insufficient with respect to the ejection amount of the pressurized fluid, and the ejection amount among the plurality of ejection ports 13 varies. For this reason, the symmetry and uniformity of the jet are lost, and the jet and the vortex cannot be efficiently applied to the yarn. In other words, the filaments forming the yarn are likely to be gathered on the side of the injection port with a small ejection amount, or a phenomenon that the filaments are out of the working area of the jet and the vortex occurs, and the filaments are hardly entangled with each other. And the uniformity of the yarn morphology also decreases.

On the other hand, when the value of Aj / Ai exceeds 45, that is, when the minimum sectional area of the supply passage 9 or the branch passage 8 becomes excessive with respect to the sum of the minimum sectional areas of the predetermined injection ports 13, one Since the member constituting one nozzle 1 itself becomes large, it is difficult to cope with a narrow inter-thread distance.

According to the present invention, it is possible to cope with the distance between yarns in the range of 5 to 12 mm. For example, in the apparatus configuration shown in FIG. 2, when the total sum of the minimum cross-sectional areas of the injection ports 13 is 1 mm ² (the diameter of the injection ports 13 is 0.8 mm), it is possible to cope with a yarn-to-thread distance of 12 mm or less.

Similarly, it is preferable that the relationship 1.5 ≦ Aj / Ai ≦ 25 is satisfied in order to easily cope with a yarn distance of 10 mm or less.

Further, in order to make it easy to cope in the range of 5 mm to 7 mm between the yarns, 1.5 ≦ Aj / Ai
It is preferable that the relationship of ≦ 5 is satisfied.

The sum of the minimum cross-sectional areas of the injection ports 13 is appropriately selected depending on the yarn type. For example, in the case of the injection port 13 having a circular cross section, the diameter of the injection port 13 is set to 0.6 to 2..
It is preferable to select within a range of 5 mm. Also,
The width of the thread passage 7 determined by the thickness of the spacer 2 also varies depending on the diameter and the positional relationship of the injection port 13, but is 0.5 mm.
It is preferable to select in the range of up to 3.0 mm.

Next, in order to uniformly supply a sufficient amount of pressurized fluid to each of the plurality of nozzles 1, the sum of Aj for all the nozzles 1 is Ajt, and the pressurized fluid inlet 11
Alternatively, assuming that the total sum of the minimum cross-sectional areas in any of the communication paths 12 is Ak, it is preferable that the relationship of 1.5 ≦ Ak / Ajt ≦ 30 is satisfied.

When the value of Ak / Ajt is less than 1.5,
The supply amount of the pressurized fluid to each nozzle 1 becomes insufficient, and the supply amount between the nozzles 1 varies. For this reason, variation of the pressurized fluid ejected from the ejection port 13 of each nozzle 1 occurs, and it becomes difficult to make the jet and the vortex act on each yarn Y uniformly.

That is, the yarn entangled with the nozzle having a smaller ejection amount than the other nozzles has a lower convergence than the other yarns, and also has a lower uniformity of the yarn form.

On the other hand, if the value of Ak / Ajt exceeds 30, the size of the yarn fluid device itself is increased, which not only increases the manufacturing cost of the device, but also requires a large space for use, and hinders the device layout. Come. Further, the diameter of the pipe and hose for supplying the pressurized fluid to the inlet 11 also increases in accordance with the value of Ak, and it is necessary to provide these spaces. For this reason, Ak / A is set within a range in which a sufficient pressurized fluid can be supplied and in consideration of the specifications of pipes and hoses.
The value of jt is preferably 30 or less.

The nozzle 1 may have the structure shown in FIG. 16, FIG. 17, or FIG. The nozzle 1 shown in FIG. 16 has a V-shaped groove 14 between the two injection ports 13. The nozzle 1 shown in FIG. 17 has a thread passage 7 having a rectangular cross section. Nozzle 1 shown in FIG.
Has a thread passage 7 having a circular cross section, and has two injection ports 1
Numerals 3 and 13 are arranged with a straight line perpendicular to the center of gravity of the yarn passage 7 as a common central axis. In addition, the injection port 13
May be provided in the axial direction of the yarn passage 7.

[0050]

Examples 1 to 6 Using a yarn fluid treatment apparatus shown in FIG. 2, a pressurized fluid at a pressure of 0.5 MPa was supplied to a polyester yarn Ya of 56 dtex and 36 filaments.
(Fig. 1) 8 yarns at the same time yarn speed 5000m / min, yarn tension 1
The vehicle was run at 4 g and subjected to confounding treatment. Table 1 shows the results.

[0051]

[Table 1] In Table 1, Ai is the sum of the minimum cross-sectional areas of the injection ports 13;
Aj indicates the minimum cross-sectional area in either the supply passage 9 or the branch passage 8, Ak indicates the total sum of the minimum cross-sectional areas in either the inlet 11 or the communication passage 12, and the unit is [m
m ² ]. In Table 1, symbol ○ means good, symbol や means good, and symbol X means bad.

The confounding degree was measured using an automatic confounding degree tester (R-207) having the same performance as the method described in JIS L 1013.
0: manufactured by Rosshield Company) for each of the yarns Yb (FIG. 1) and averaged.
The higher the degree of confounding, the higher the convergence of the yarn Yb. In addition, as an index for observing the variation in convergence between yarns, 8
The standard deviation was determined from the degree of entanglement of each of the yarns Yb. The smaller the standard deviation, the smaller the variation in convergence between the yarns.

Each of the yarns obtained in Examples 1 to 6 after the entanglement treatment has a high degree of entanglement, a small standard deviation, a high convergence of the yarn, and a variation in convergence between the yarns. There were few. Further, when the behavior of the yarn was visually observed, as shown in FIG. 19, the filament forming the yarn Y actively moved around in the yarn passage 7, and the opening behavior of the filament was performed at a constant period. It was recognized that.
In these devices, the distance between the yarns was 12 mm or less, and the diameter of the fluid supply member 6 and the pipes and hoses connected thereto were small, and the entire device was compact.

[0054]

Comparative Example 1 Each of the yarns obtained in Comparative Example 1 after the entanglement treatment has a greatly reduced degree of entanglement, a slightly reduced standard deviation, and low convergence of the yarns as compared with the examples. Was something. When the behavior of the yarn was visually observed, FIG.
As shown in the figure, all of the eight yarns Y simultaneously entangled are
A tendency toward one of the injection ports 13 was observed. This is because a sufficient flow rate of the pressurized fluid cannot be supplied to the injection port 13 because the minimum cross-sectional area of the supply path 9 or the branch path 8 is smaller than the total sum of the minimum cross-sectional areas of the injection port 13. It seems to be.

[0055]

Comparative Example 2 Each of the yarns after the entanglement treatment obtained in Comparative Example 2 had significantly lower entanglement degree and standard deviation, lower convergence of the yarns, lower The variation in focusing was large. Further, when the behavior of the yarns was visually observed, three of the eight yarns were biased toward one of the injection ports 13, and the remaining five yarns were not biased.
It did not move as actively as the example. This is the supply path 9
Alternatively, since the total sum of the minimum cross-sectional areas of the inlet port portion 11 is smaller than the minimum cross-sectional area of the branch passage 8, it is considered that the flow rate of the pressurized fluid between the supply passages is varied.

[0056]

Comparative Example 3 Each of the yarns after the entanglement treatment obtained in Comparative Example 3 had the same degree of entanglement and standard deviation as those of the Example, and there was no problem in the convergence and variance in the convergence of the yarns. Did not. Further, when the behavior of the yarn was visually observed, as shown in FIG. 19, it was found that the filament forming the yarn actively moved around in the yarn passage 7, and the filament opening behavior was performed at a constant period. Admitted. However, A
The value of k is large, the diameter of the fluid supply member 6 and the pipes and hoses connected to the fluid supply member 6 are increased, and the entire device is increased in size.
It was a hindrance to handling.

[0057]

[Comparative Example 4] Each of the yarns obtained in Comparative Example 4 after the entanglement treatment had the same degree of entanglement and standard deviation as compared with the Example, and there was no problem in the convergence and variance of the convergence. Did not. Further, when the behavior of the yarn was visually observed, as shown in FIG. 19, it was found that the filament forming the yarn actively moved around in the yarn passage 7, and the filament opening behavior was performed at a constant period. Admitted. However, A
When the value of j is increased, the distance between the yarns is increased to 15 mm, which causes a problem that the entire yarn manufacturing apparatus is increased in size.

[0058]

The yarn fluid treatment apparatus according to the present invention has a plurality of nozzles. The sum of the minimum cross-sectional areas of the plurality of injection ports provided for each nozzle and the value of the sum of the minimum sectional area and the branch path or the supply path are determined. Because there is a specific relationship with the value of the minimum cross-sectional area at
The variation in the flow rate of the pressurized fluid injected from each injection port is extremely small as compared with the conventional device, and as a result, it is possible to impart high convergence and uniformity of form to each yarn substantially uniformly. Further, since the distance between the yarns can be reduced, the equipment can be made compact, and the production cost of the synthetic fiber yarn can be reduced.

[Brief description of the drawings]

FIG. 1 is a schematic perspective view of one embodiment of a yarn fluid treatment device of the present invention.

FIG. 2 is a sectional view taken along line XX in FIG.

FIG. 3 is an enlarged vertical sectional view of a nozzle portion in FIG.

FIG. 4 is an enlarged longitudinal sectional view of a nozzle portion of another embodiment used in the yarn fluid treatment device of the present invention.

FIG. 5 is an enlarged vertical sectional view of another embodiment of a nozzle portion used in the yarn fluid treatment apparatus of the present invention.

FIG. 6 is an enlarged vertical sectional view of a nozzle portion of another mode used in the yarn fluid treatment device of the present invention.

FIG. 7 is an enlarged longitudinal sectional view of a nozzle portion of another mode used in the yarn fluid treatment device of the present invention.

FIG. 8 is a longitudinal sectional view of another embodiment of the yarn fluid treatment device of the present invention.

FIG. 9 is a longitudinal sectional view of another embodiment of the yarn fluid treatment device of the present invention.

FIG. 10 is a longitudinal sectional view of another embodiment of the yarn fluid treatment device of the present invention.

FIG. 11 is a longitudinal sectional view of another embodiment of the yarn fluid treatment device of the present invention.

FIG. 12 is a longitudinal sectional view of another embodiment of the yarn fluid treatment device of the present invention.

FIG. 13 is a longitudinal sectional view of another embodiment of the yarn fluid treatment device of the present invention.

FIG. 14 is a longitudinal sectional view of another embodiment of the yarn fluid treatment device of the present invention.

FIG. 15 is a longitudinal sectional view of another embodiment of the yarn fluid treatment device of the present invention.

FIG. 16 is an enlarged vertical sectional view of a nozzle portion of another mode used in the yarn fluid treatment device of the present invention.

FIG. 17 is an enlarged vertical sectional view of a nozzle portion of another mode used in the yarn fluid treatment device of the present invention.

FIG. 18 is an enlarged vertical sectional view of a nozzle portion of another mode used in the yarn fluid treatment device of the present invention.

FIG. 19 is a schematic diagram showing a state of filament opening in a yarn passage when a yarn entanglement process is performed using the yarn fluid treatment device of the present invention.

FIG. 20 is a schematic diagram showing a state in which filaments are opened in a yarn passage when a yarn is entangled using a conventional yarn fluid treatment device.

[Explanation of symbols]

 1: Nozzle 2: Spacer 3: Housing member 4: Bolt 5: Bolt 6: Fluid supply member 7: Thread passage 8: Branch passage 9: Supply passage 10: Fluid sealing material 11: Inlet port 12: Communication passage 13: Injection port Y: Yarn

Claims (4)

[Claims] 1. A pressurized fluid supply port to which a pressurized fluid supply pipe is connected, a communication path extending inward from the supply port, and a plurality of branches provided at intervals in the communication path. A fluid supply member having a passage, a nozzle having a supply passage of a pressurized fluid connected to the respective branch passages, and a plurality of injection ports provided at intervals in the respective supply passages; In the yarn fluid treatment device including a yarn passage provided opposite to the injection port, the sum of the minimum cross-sectional areas of the plurality of injection ports provided for each nozzle is Ai, and the sum of the minimum cross-sectional areas corresponds to each nozzle. Wherein the minimum sectional area in either the branch path or the supply path provided as Aj is 1.5 ≦ Aj / Ai ≦ 45. 2. When the total sum of Aj for all the nozzles is Ajt, and the total sum of the minimum cross-sectional areas in either the introduction port or the communication passage is Ak, 1.5 ≦ Ak / Ajt ≦ 30. The yarn fluid treatment device according to claim 1, wherein the yarn fluid treatment device has a relationship. 3. The yarn fluid treatment device according to claim 1, wherein a yarn is supplied to each of the plurality of yarn passages provided in the yarn fluid treatment device. And a yarn taking-up means for taking up each of the yarns subjected to the fluid treatment by the pressurized fluid in each of the yarn passages. 4. A yarn fluid is supplied to each of the plurality of yarn passages of the yarn fluid treatment device according to any one of claims 1 and 2, and the yarns are respectively treated by the yarn fluid treatment device. A method for producing a yarn, comprising performing fluid treatment with a pressurized fluid, and taking up each fluid-treated yarn.