KR20090087205A - Manufacturing method for polyester thick and thin yarn by direct spin draw, polyester thick and thin yarn manufactured by the same, and oil sticking apparatus - Google Patents

Abstract

A manufacturing method of polyester thick and thin yarn with a direct spin drawing process, the polyester thick and thin yarn manufactured thereby, and an emulsion sticking device are provided to produce the polyester thick and thin yarn having an area ratio of 2 or greater in a thick and a thin parts. A manufacturing method of polyester thick and thin yarn includes a step for injecting a polyester emulsion solution and pure water on raw yarn which is injected through a polyester spinneret(12), and a step for performing heat-treating and drawing. An alternating cycle of the pure water and the emulsion solution is 10 - 5000 time/minutes. A feeding ratio of the pure water and the emulsion solution is 0.1 - 10. The concentration of the emulsion solution is 0.1 ~ 100wt%.

Description

MANUFACTURING® METHOD FOR POLYESTER THICK® AND THIN YARN BY®DIRECT SPIN DRAW, POLYESTER THICK®AND THIN YARN MANUFACTURED®BY THE®SAME , AND OIL STICKING APPARATUS}

The present invention relates to a method for producing a polyester posture yarn by a direct spinning and stretching process, a polyester posture yarn produced by the above method and an emulsion attachment device therefor, and more specifically, to a yarn spun through a spinneret After alternately attaching the emulsion solution and the pure water, and stretching and heat-treating the yarn, to prepare a polyester attitude yarn, the polyester attitude yarn produced by the method, and the emulsion solution to the spun yarn The present invention relates to an emulsion applying device that alternately attaches pure water.

Polyester stiffener refers to a polyester yarn in which the thick part and the fine part in the length direction of the yarn are alternately irregular. As a conventional technique for producing a polyester posture yarn in a direct radial stretching process, as disclosed in Japanese Patent Laid-Open Publication Nos. 55-142716 and 55-128012, etc., the draw ratio is controlled to be low or the draw temperature is set to low polyester. And a method for manufacturing a pomp.

According to the prior art, there is an advantage that it is possible to easily prepare a polyester posture yarn by using the speed difference of the high-de-roller and setting the temperature of the stretching roller low without any additional equipment. However, the polyester posture produced by the prior art is low in strength and too high in elongation, there is a disadvantage that the area ratio of the posture is less than 1.5 due to the coexistence of the details in the place.

Therefore, the present invention is to solve the problems of the prior art as described above, and after attaching the polyester emulsion solution and pure water alternately to the yarn spun through spinneret, the poly by stretching and heat treatment the yarn It is an object of the present invention to provide an emulsion attachment apparatus for alternately attaching an emulsion solution and a pure water to a method for producing an ester attitude yarn, a polyester attitude yarn produced by the above method, and a spun yarn.

Method for producing a polyester posture yarn according to the present invention for achieving the above object, (a) alternately attaching a polyester emulsion solution and pure water to the yarn spun through a polyester spinneret; And (b) stretching and heat treating the yarn.

In addition, in the oil attachment apparatus according to the present invention for achieving the above object, the emulsion solution and pure water are injected through two valves, and the emulsion solution and pure water are alternately supplied to the gear pump for oil supply through the other valve. Reciprocating three-way valve to be injected by; A reciprocating three-way valve inverter attached to the reciprocating three-way valve to adjust the amount of the emulsion solution and the pure water injected into the gear pump for the oil supply through the reciprocating three-way valve; An emulsion supply gear pump which sends the emulsion solution and the pure water injected through the reciprocating three-way valve to an oil supply guide to attach to the polyester yarn; An oil supply guide for alternately attaching an emulsion solution and pure water to the spun yarn; And a connection hose connecting the oil supply gear pump and the oil supply guide to provide a movement path of the emulsion solution and the pure water.

According to the method of manufacturing a polyester posture yarn by alternately attaching a polyester emulsion solution and pure water to the yarn spun through the spinneret as described above, and then stretching and heat treating the yarn. Since no detail is generated together, it is possible to manufacture a polyester posture yarn having an area ratio of 2 or more of the posture portion, and by adjusting the pure water ratio in the manufacturing process, it is possible to control the length of the concentrated salt portion and the light salt portion.

Hereinafter, the present invention will be described in more detail with reference to the accompanying drawings. In the following description of the present invention, if it is determined that a detailed description of a related known function or configuration may unnecessarily obscure the subject matter of the present invention, the detailed description thereof will be omitted.

1 is a schematic diagram of a polyester posture manufacturing process according to the present invention.

First, the polyester yarn is spun through the polyester spinneret 12.

Subsequently, the polyester emulsion and the pure water are alternately attached to the spun polyester yarn by using the emulsion attachment device according to the present invention, the emulsion attachment device is a reciprocating three-way valve (5), reciprocating A three-way valve inverter 7, an oil supply gear pump 8, an oil supply guide 11, and connection hoses 5 and 10 are included.

A reciprocating three-way valve (5) is connected to the emulsion inlet located at the front end of the gear pump (8) for oil supply, and the gear pump (8) for oil supply from the polyester oil container (1) and the pure water container (2) ) So that emulsion solution and pure water can be injected. In addition, although not shown in FIG. 1, a reciprocating four-way valve, a reciprocating five-way valve, or the like may be used as an oil feed gear pump 8 so that three to five kinds of solutions may be alternately injected as necessary. It may also be connected to the emulsion inlet. In addition, although the oil inlet is shown in FIG. 1 as being located at the front end of the gear pump 8 for oil supply, it is also possible to be located in the rear end.

At this time, the concentration of the emulsion solution injected from the polyester emulsion container (1) is preferably 0.1 to 100wt%. If the concentration of the emulsion solution is less than 0.1 wt%, the area ratio of the posture portion becomes 2 or less, which causes cutting and poor operation. On the other hand, when the concentration of the emulsion solution is more than 100wt%, the EPU (Emulsion Pick UP) rate is low, the filament is partially dropped during the stretching, causing cutting at sea.

The polyester emulsion container (1) and the pure water container (2) are located on top of the emulsion pump gear pump (8), each of which is provided with two of the reciprocating three-way valves (5) via nylon hoses (3, 4). Respectively connected to the two upper valves. In addition, the lower valve of the reciprocating three-way valve 5 is connected to the emulsion inlet located at the front end of the emulsion pump gear 8 via a nylon hose 6. At this time, the reciprocating three-way valve 5 and the oil supply gear pump 8 are fixed so as not to be shaken by vibration, so that the amount of the injected emulsion solution and the pure water is made uniform.

Here, the specification of the nylon hose (3, 4, 6) connecting the polyester emulsion cylinder (1), the pure water cylinder (2) and the gear pump (8) for the emulsion supply and the reciprocating three-way valve (5) The range of Φ 1 to 100 is preferred, but hoses of appropriate specifications may be used depending on the amount of emulsion solution and pure water used. When the size of the hose is small, the injection amount is small compared to the discharge amount, bubbles are generated and the supply is poor, which causes cutting and non-uniformity of polyester posture. On the other hand, if the size of the hose is large, the emulsion solution for polyester and pure water are mixed in the hose so that the area ratio of the poised part of the polyester posture yarn is 2 or less.

In addition, the length of the nylon hose (6) connecting the reciprocating three-way valve (5) and the oil supply gear pump (8) does not exceed 50cm, to maintain the vertical. When the length of the hose exceeds 50 cm, the mixing ratio of the emulsion solution and the pure water becomes high, and the area ratio of the posture portion becomes 2 or less.

Reciprocating three-way valve (5) is attached to the reciprocating three-way valve inverter (7), the reciprocating three-way valve inverter (7) is for supplying oil through the reciprocating three-way valve (5) The amount of emulsion solution and pure water injected into the gear pump 8 is adjusted. That is, the emulsion solution and the pure water are adjusted to be injected into the gear pump for oil supply by alternating at a predetermined period and a predetermined ratio for a predetermined time. At this time, the alternating cycle is 10 to 5000 times / minute, and the supply ratio of the emulsion solution and the pure water is 0.01 to 100 times. In order to shorten the period of the concentrated salt portion and the salt salt portion of the polyester posture yarn to be produced, the alternating cycle is made low, and the length of the pure salt portion is increased to increase the length of the salt salt portion.

The emulsion supply gear pump 8 sends the injected emulsion solution and pure water to the oil supply guide 11 through the nylon hose 10 so that the emulsion solution and pure water can be alternately attached to the polyester yarn.

At this time, the rotational speed of the oil feed gear pump 8 is preferably 1 to 200 rpm, but considering the amount of yarn radiated through the polyester spinneret 12 and OPU (Oil Pick Up) of the appropriate capacity Emulsion supply gear pump 8 can be used.

On the other hand, the specification of the nylon hose 10 for connecting between the oil feed gear pump 8 and the oil feed guide 11 is in the range of Φ 1 to 100, the oil feed gear pump 8 and the reciprocating type 3 It is preferred to be smaller than the size of the nylon hose 6 connecting the way-valve 5. In addition, it is preferable that the length of the hose 10 shall be 100 cm or less. When the hose length exceeds 100 cm, the mixing ratio of the emulsion solution and pure water becomes high, and the area ratio of the posture portion becomes 2 or less.

In addition, the oil supply guide 11 is located 10 to 45 degrees higher than the oil pump gear 8 for oil supply. This is to increase the uniformity of adhesion by allowing the emulsion solution and pure water to be forcibly attached instead of free fall when attached to the spun yarn.

The emulsion solution and the pure water alternated through the oil supply guide 11 are attached to the spun yarn at a predetermined interval by a predetermined amount.

Here, the ratio of the pure emulsion attached to the yarn spun through the polyester spinneret 12 is preferably 0.1 to 20.0wt%. If the ratio of the pure emulsion is less than 0.1wt%, wool occurs in the polyester posture manufacturing process, the cutting and maritime failure occurs in the spinning process. On the other hand, when the ratio of the pure emulsion is more than 20.0wt%, foreign matter remains in the guide due to excessive adhesion of the emulsion. In addition, the amount of emulsion adhered depends on the position of the wound polyester posture yarn, that is, when the emulsion solution moves from the inner layer to the outer layer by centrifugal force during winding, a small amount of the emulsion solution is placed on the inner layer, and a large amount of the emulsion solution is placed on the outer layer. It becomes affixed, and the physical property of the polyester posture yarn wound by the same branch pipe becomes nonuniform.

Subsequently, the yarn is stretched and heat treated using the first and second high-detro controller sets 13 and 14, and then wound around the winder 15.

Here, it is preferable that the linear velocity of the 1st high-detro controller set 13 shall be 1,000-4,000 m / min, and the temperature shall be 30-100 degreeC. If the linear velocity is 1,000 m / min or less, the orientation crystallization is reduced and the physical property change after winding is severe. If the linear velocity is 4,000 m / min or more, the area ratio of the posture portion is 2 or less. On the other hand, when temperature is 30 degrees C or less, a yarn will adhere to the 1st high-detro controller set 13, and operability will be inferior, and if it is 70 degrees C or more, the effect of a light shade will fall and the area ratio of a posture part will be 2 or less.

Moreover, it is preferable to make the linear velocity of the 2nd high-detro controller set 14 into the range of 1,000-6,000 m / min, and temperature in 50-200 degreeC. In particular, it is preferable to set the linear velocity in consideration of the first high controller set 13 and the target elongation, and to set the temperature in consideration of the target shrinkage ratio of the polyester posture yarn.

Hereinafter, the present invention will be described in more detail with reference to various examples and comparative examples.

Example  One

According to the present invention, 100 polyester / 36 filament of a polyester positioner is manufactured. At this time, the capacity of the oil feed gear pump 8 is 0.07cc / rev, 8port, and the connection hose 6 size of the reciprocating 3-way valve 5 and the oil feed gear pump 8 is Φ8. , The distance is 10cm, the connection hose 10 of the gear pump (8) for oil supply and the oil supply guide 11 is Φ4, the distance is 40cm. In addition, the alternating cycle of emulsion solution and pure water having a concentration of 20wt% is 100 times / minute, and the ratio of emulsion solution and pure water is 1: 2. In addition, the linear velocity of the 1st high-detro controller set 13 is 1,900 m / min, temperature is 60 degreeC, the linear velocity of the 2nd gothic controller set 14 is 4,100 m / min, temperature is 60 degreeC, The speed of the winder 15 is set to 4,000 m / min, and the rotation speed of the gear pump 8 for oil supply is set to 45 rpm.

Example  2

The ratio of emulsion solution and pure water is 1: 1, and the remaining conditions are the same as in Example 1.

Example  3

The ratio of emulsion solution and pure water is 2: 1, and the remaining conditions are the same as in Example 1.

Example  4

The alternating cycle of emulsion solution and pure water is 200 times / minute, the ratio of emulsion solution and pure water is 1: 2, and the remaining conditions are the same as in Example 1.

Example  5

The ratio of emulsion solution and pure water is 1: 1, and the remaining conditions are the same as in Example 4.

Example  6

The ratio of emulsion solution and pure water is 2: 1, and the remaining conditions are the same as in Example 4.

Comparative example  One

The distance of the connecting hose 6 between the reciprocating three-way valve 5 and the oil supply gear pump 8 is 100 cm, and the remaining conditions are the same as those in the second embodiment.

Comparative example  2

The distance of the connection hose 10 between the oil feed gear pump 8 and the oil feed guide 11 is 200 cm, and the remaining conditions are the same as in Example 2.

Comparative example  3

The concentration of the emulsion solution is 0.05 wt%, and the remaining conditions are the same as in Example 2.

Table 1 shows the comparative conditions of the above Examples 1 to 6 and Comparative Examples 1 to 3 and evaluation items of the polyester posture manufactured by the above Examples and Comparative Examples.

division Hose (shear) Hose (rear) Emulsion concentration Alternating frequency Emulsion: Pure Poised cycle Taboo length Posture Area Ratio OPU U% unit (Cm) (Cm) (wt%) (Times / minute) (-) (Times / 100m) (m) (-) (%) (%) Example 1 10 40 20 100 1: 2 8.5 4.7 3.6 0.84 5.4 Example 2 10 40 20 100 1: 1 8.3 3.6 3.5 0.97 5.7 Example 3 10 40 20 100 2: 1 9.0 2.4 3.2 1.05 5.1 Example 4 10 40 20 200 1: 2 16.0 2.3 3.4 0.89 5.9 Example 5 10 40 20 200 1: 1 15.7 1.5 3.3 0.98 6.2 Example 6 10 40 20 200 2: 1 16.8 1.1 3.5 1.10 4.8 Comparative Example 1 100 40 20 100 1: 1 35.6 0.4 1.4 0.94 1.9 Comparative Example 2 10 200 20 100 1: 1 40.8 0.4 1.4 0.95 1.7 Comparative Example 3 10 40 0.05 100 1: 1 - - 1.0 0.01 0.8

Description of the terms used in Table 1 is as follows.

The hose (shear) represents the length of the connecting hose 6 between the reciprocating three-way valve 5 and the oil feed gear pump 8.

The hose (rear) represents the length of the connection hose 10 between the oil feed gear pump 8 and the oil feed guide 11.

Emulsion concentration is the concentration of the pure polyester emulsion in the polyester emulsion emulsion in wt%.

The number of alternations represents the number of round trips per minute between the valves connected to the polyester tanning tank (1) and the pure water tank (2) in the reciprocating three-way valve (5), which is a reciprocating three-way valve inverter (7). Is set by).

Emulsion: Pure water represents the time ratio at which the emulsion solution and the pure water are supplied at the time of alternating between the emulsion solution and the pure water, respectively, which are values set by the reciprocating three-way valve inverter 7.

The posture period is the period shown on the U% chart measured by Keisokki's Evenness Tester 800.

The length of the waist is the average value measured 10 times of the length of the waist after heat-processing the prepared polyester posture yarn at 120 degreeC using the dye for polyester.

The posture of the posture is showing the area ratio of the posture after measuring the area of the cross section 10 times by collecting the perforated parts and details of the polyester posture yarn dyed using the polyester dye as described above.

OPU (Oil Pick Up) indicates the concentration of the polyester stock solution contained in the prepared polyester posture yarn in wt%.

U% is the average value of U% measured five times by the Evenness Tester 800 from Keisokki, Japan.

Referring to Table 1, it can be seen that the polyester posture manufactured by various embodiments of the present invention has an area ratio of two or more postures. In addition, it is possible to control the posture cycle, that is, the period between the concentrated and biliary salt portions, by controlling the number of alternations of the emulsion solution and the pure water. have.

2A and 2B are enlarged photographs of details and parts of a polyester posture yarn manufactured by the prior art, and FIGS. 3A and 3B illustrate details and details of a polyester posture yarn manufactured according to the present invention. It is a magnified picture, and the shooting ratio is the same 200 times.

As shown in Figure 2b, because the place part and the detail coexist in the place of the conventional polyester posture yarn, the area ratio of the posture portion is 2 or less. However, referring to Figure 3b, because the only part of the placenta of the polyester posture manufactured by the present invention it is possible to obtain a ratio of two or more posture area.

The detailed description and contents of the drawings described above are limited to the preferred embodiments of the present invention, and the present invention is not limited thereto. It will be possible to substitute, change or delete the components according to the present invention within the technical scope of the present invention.

Therefore, the scope of the present invention should be determined by the appended claims rather than by the foregoing description and drawings.

1 is a schematic view of a polyester posture manufacturing process according to the present invention,

Figure 2a is an enlarged photograph of the detail of the polyester posture yarn manufactured by the prior art,

Figure 2b is an enlarged photograph of the great part of the polyester posture manufactured by the prior art,

Figure 3a is an enlarged photograph of the detail of the polyester posture yarn produced by the present invention, and

Figure 3b is an enlarged photograph of the great part of the polyester posture yarn produced by the present invention.

* Description of the symbols for the main parts of the drawings *

1: polyester emulsion container 2: pure water container

3: polyester emulsion supply hose 4: pure water supply hose

5: Reciprocating 3-Way Valve

6: Reciprocating 3-way valve and oil pump gear hose connection hose

7: Reciprocating 3-way valve inverter

8: Gear pump for emulsion supply 9: Gear pump inverter for emulsion supply

10: Gear pump for oil supply and oil supply guide connection hose

11: Oil supply guide 12: Polyester spinneret

13: 1st Godet Controller Set 14: 2nd Godet Controller Set

15: winder

Claims (5)

In the method for producing a polyester posture yarn by a direct spinning process, (a) alternately attaching polyester emulsion solution and pure water to the yarn spun through a polyester spinneret; And (B) the method of producing a polyester posture yarn comprising the step of stretching and heat treatment the yarn. The method of claim 1, In the step (a), The alternating cycle of emulsion solution and pure water is in the range of 10 to 5000 times / minute, The supply ratio of emulsion solution and pure water is in the range of 0.1 to 10 times, The concentration of the emulsion solution is polyester poised yarn manufacturing method, characterized in that in the range of 0.1 to 100wt%. The method of claim 1, The step (b) is carried out by the first set of gode controller and the second set of gode controller, The linear velocity of the first gode controller set is 1,000 to 4,000 m / min, the temperature is 30 to 100 ℃, The linear velocity of the second gode controller set is 1,000 to 6,000 m / min, the temperature is 50 to 200 ℃ manufacturing method of a polyester posture yarn. A polyester attitude yarn manufactured by any one of claims 1 to 3, wherein the area ratio of the attitude portion is two or more. An reciprocating three-way valve for injecting an emulsion solution and pure water through two valves, and alternately injecting an emulsion solution and pure water into an oil supply gear pump through the other valve; A reciprocating three-way valve inverter attached to the reciprocating three-way valve to adjust the amount of the emulsion solution and the pure water injected into the gear pump for the oil supply through the reciprocating three-way valve; An emulsion supply gear pump which sends the emulsion solution and the pure water injected through the reciprocating three-way valve to an oil supply guide to attach to the polyester yarn; An oil supply guide for alternately attaching an emulsion solution and pure water to the spun yarn; And Emulsion attachment device comprising a connecting hose for connecting the oil supply gear pump and the oil supply guide for providing a moving passage of the emulsion solution and pure water.

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