KR101938840B1 - Polyester conjugated yarn having natural emotion and manufacturing method of fabric using the same - Google Patents

Abstract

The present invention relates to a manufacturing method of polyester conjugated yarns, which stretches and heat-processes a partially oriented high contracting modified latent crimp yarn, to use the same as a core and partially oriented polyester yarns as a sheath, and to a fabric and knitted products manufactured by using yarn manufactured thereby. The present invention invented to solve existing problems is as follows: conjugate-spinning high viscosity and high contracting modified polyester resins and low viscosity polyester resin; stretching and heat-processing partially oriented latent crimp yarns to use the same as a core; and using partially oriented functional polyester yarns as a sheath; and thus, manufacturing polyester conjugated yarns. Accordingly, the present invention provides a manufacturing method of polyester conjugated yarns having high and proper stretchability and stretch recovery for clothes and natural sensibility in case of manufacturing fabrics and knitted products by using the polyester conjugated yarns; and a manufacturing method of fabrics using the same.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a polyester composite fabric having natural sensibility and a method of manufacturing a fabric using the same.

The present invention relates to a partially oriented poly (POY) polyester having a high degree of high shrinkage modifying polyester resin and a low viscosity polyester resin, Functional polyester composite yarn which can satisfy young emerging consumers, China's emerging consumer group, by combining functional yarns for natural sensibility differentiation from conventional ones by using polyester as sheath, and manufacturing fabrics using the same ≪ / RTI >

Traditionally, stretch fabrics have been used mainly as stretchy materials with high activity, but recently they have become very popular as fashion materials, and they have been widely used in various applications such as suits, pants, and swimwear.

Conventionally, there are three methods of imparting stretchability, namely, a method of covering a spandex, a method of advancing to a pottery using a difference in heat shrinkage of the fiber, a method of imparting a physical crimp There is a way to give a mechanical stretch. In order to achieve high elasticity, a method of covering mainly spandex has been used. However, recently, a method of interlacing and spandexing a spandex has been developed have.

In addition, there is a method of utilizing a pottery bar which imparts stretchability by using difference in heat shrinkage of the fiber in the state of a yarn. This method is continuously developing products because of the excellent drape of fabric compared to price.

Another method is to mechanically stretch a crimp by physically applying a crimp to the yarn processing process and then applying mechanical stretch. However, since the drapeability is poor and the false twisting process is carried out separately, It has been developed to be limited to a few items.

Although a method for manufacturing a stretchable fabric using a false twist yarn is disclosed in Korean Patent Publication No. 1992-25482, this method has a problem in that the stretchability of the false twist yarn is limited and the high stretchability of the fabric is lowered.

Another conventional invention is a method for enhancing elasticity and extensibility by inherent crimp property of a crimped filament yarn using screening and warp yarn. However, in the above conventional methods, It has been pointed out that it is difficult to increase the interlocking strength of the fibers, and thus it is difficult to produce a composite workpiece.

Conventional polyester composite yarns are produced by partially entangling a partially oriented yarn (POY) and a flat yarn (FY) with each other by air entanglement, whereby a spun composite construction due to heat shrinkage difference between the two yarns Has been widely used. Also, for the unique surface effect of the polyester composite yarn, a method of using a polyester fiber produced by incorporating a large amount of inorganic particles in a sheath, or a method of producing a composite yarn using acetate, rayon, .

Conventional polyester high-density housing yarns are produced by co-spinning low-viscosity and high-viscosity polyesters to produce shrinkable composite hornblende filaments. In Application No. 2003-0047497, "two kinds of polymers, i.e., PET polymers having an intrinsic viscosity of 0.4 to 0.59 And a PET polymer having an intrinsic viscosity of 0.6 to 0.85 in a side-by-side cross-sectional shape to produce a latent sheath having a composite crimp ratio of 20% or more ". In addition, Patent Application Nos. 2003-0026094 and 2009-0134146 also disclose a method of improving potential winding property by using two types of PET polymers having different viscosities.

When the fabric is manufactured by using the polyester yarn as the examination, the knitted fabric having an excellent volume feeling and having a natural texture and excellent stretchability can be manufactured.

Polyester yarn used in the manufacture of such a composite yarn is generally produced by a partially oriented yarn (POY) capable of spontaneous elongation after the production of a composite yarn, Maximizes the sense of volume.

Korean Patent No. 10-1290954 maximizes the difference in the shrinkage ratio between the screening and the interlacing by using the partial orientation (POY) pottery examination as the examination and the stretching heat treatment only by using the POY polyester yarn.

In Korean Patent No. 10-1579232, a difference in shrinkage ratio of about 8% is reached by using a side-by-side pottery barrel and conducting stretching heat treatment only on the polypropylene yarn while using POY polyester yarn.

Korean Patent No. 10-1423207 achieves the difference in the shrinkage ratio between the inspection and the interlacing by using the pottery barrow as the examination and the stretching heat treatment only for the examination using the partially oriented (POY) polyester yarn containing the inorganic pigment .

When Daimaru knitted fabrics and fabrics are woven with this high shrinkage composite yarn as a yarn, the volume feeling, stretchability and resilience are excellent, but defects such as defective knitting, weaving defects, and oblique defects are high due to high shrinkage and elongation .

Also, after the dyeing process, due to excessive shrinkage, dyed streaks and dyed yarns are generated and the amount of loss generated in the processed fabric is increased.

Korean Registered Patent No. 10-1290954 (polyester composite construction and its manufacturing method) Korean Patent No. 10-1579232 (polyester composite yarn excellent in stretchability and volume feeling and method for producing the same) Korean Patent No. 10-1423207 (polyester composite yarn excellent in elasticity and volume feeling and method for manufacturing the same)

DISCLOSURE OF THE INVENTION The present invention has been devised to overcome the above-described problems of the prior art, and it is an object of the present invention to provide a method for producing a polyurethane resin composition by spinning a high viscosity high shrinkage modifier polyester resin and a low viscosity polyester resin to examine a POY (Partially Oriented Yarn) (POY, Partially Oriented Yarn) functional polyester yarn is used as a warp yarn to produce a polyester composite yarn. When fabrics and knitted fabrics using the same are used as a yarn, it is possible to provide a yarn having a high stretchability and a method of manufacturing a fabric using the same.

In order to solve the above-described problems,

(1) preparing a partially oriented (POY, Partially Oriented Yarn) side-by-side latent housing by complex spinning of a high viscosity high shrinkage modifying polyester resin and a low viscosity polyester resin;

(2) producing partially oriented poly (POY) yarns comprising nanoparticle photocatalyst particles;

(3) stretching and heat-treating the high shrinkage modifying latent housing by a speed difference between a first godet roller (GR) and a second godet roller;

(4) subjecting the high shrinkage modifying potential housing to a non-contact heat treatment and entangling air with the polyester yarn; and

(5) a step of winding the air entangled polyester composite construction into a polyester composite construction.

According to another embodiment of the present invention, the high viscosity high shrinkage modifier polyester resin is a polyester having an intrinsic viscosity (IV) of 0.6 to 0.7 dl / g, a low viscosity polyester resin has an intrinsic viscosity (IV) of 0.42 to 0.45 dl / g. < / RTI >

According to another embodiment of the present invention, the potential housing is a twelve-filament part extending yarn (POY) of 90 to 100 denier manufactured at a spinning speed of 2500 to 3000 m / min, The present invention provides a method of producing a polyester composite construction, which is a filament part stretching sieve.

According to another embodiment of the present invention, there is provided a method for producing a polyester composite construction, wherein the potential housing has a strength of 3.2 to 3.5 g / d, an elongation of 23 to 28%, and an elastic recovery rate of 20 to 35%.

According to another embodiment of the present invention, the nano photocatalyst particles may include 0.5 to 2.0 wt% of at least one of zinc oxide (ZnO) and titanium dioxide (TiO ₂ ), based on the total weight of the composite, .

According to another embodiment of the present invention, the speed difference between the first godet roller (GR) and the second godet roller is 250 to 400 m / min, the temperature of the first godet roller is 90 to 100, And a temperature of 40 to 50 ° C.

According to another embodiment of the present invention, there is provided a manufacturing method of polyester composite construction wherein the stretching ratio between the first godet roller and the second godet roller is 1.500 to 1.750%.

According to another embodiment of the present invention, there is provided a method of manufacturing a polyester composite construction wherein the non-contact type heat treatment temperature is 150 to 230.

Further, the present invention provides a knitted fabric characterized by using the polyester composite construction described above, wherein the above-described polyester composite construction is used as warp or weft.

According to the present invention, in the process of producing a fabric or a knitted fabric by using a polyester composite construction yarn, the problems of whiteness difference, warpage, knot breaking, loosening and weaving failure due to difference in elongation and shrinkage ratio of the yarn are remarkably reduced .

Further, according to the present invention, it is possible to remarkably improve the defective dyeing of the dyed yarn and dyed yarn possessed by the conventional high stretch composite yarn while exhibiting a certain volume feeling, elongation and recovery of the elongation even after dyeing processing of the knitted fabric or the fabric It has a natural texture and is excellent in antibacterial property of 99.9% and UV blocking property.

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a flow chart of a process for producing a polyester composite processed yarn according to the present invention.
2 is a structural view of a manufacturing apparatus of a polyester composite processed yarn according to the present invention

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a process flow chart showing a method of producing a polyester composite construction according to the present invention. FIG.

As shown in FIG. 1, the method for producing a polyester composite construction according to the present invention comprises: (S10) preparing a partially oriented (POY) high shrinkage modifying polyester pottery; (S20) of partially oriented (POY) polyester yarn comprising nano photocatalyst particles; (S30) of the pottery barn; and a step (S40): and a winding step (S50) in which the pottery barn is subjected to the non-contact heat treatment and the entanglement and air entanglement are sequentially performed.

The step (S10) of producing the pottery bar is a step of stretching a low viscosity polyester and a high viscosity high shrinkage reforming polyester to a partially oriented yarn (POY) polyester yarn as a potential side bar of a side-by-side type The farming potential is used for the examination (1). The stretching in the above step is carried out using a federation of a general polyester partly oriented yarn (POY). The federating condition is performed at a stretching ratio of 1.5 to 1.65 and a stretching temperature of 90 to 95.

The low viscosity / high viscosity side-by-side type partially oriented polyester potting furnace used in the present invention is characterized in that the low viscosity polyester resin has an intrinsic viscosity (IV) of from 0.42 to 0.45 and an intrinsic viscosity of high viscosity high shrinkage modified polyester resin ) Is 0.6 to 0.7, the spinning speed is 2,500 to 3,000 m / min, and the high viscosity polyester and low viscosity polyester are mixedly spinned under the condition of 3: 7 to 7: 3 ratio, which is preferably 90 to 100 denier.

When the high-viscosity polyester exceeds the above-mentioned ratio, the spinning operation is poor due to the projecting phenomenon (the polymer tends to stick to one side just under the custody) in the spinning process. When the low-viscosity polyester exceeds the above ratio, It may not be possible. If the intrinsic viscosity (IV) of the high-viscosity polyester and the low-viscosity polyester is out of the above-mentioned range, there may be a problem that the fluidity becomes large, the winding property is poor and the adhesion between the interfaces is remarkably low. have.

If the total denier is less than 90 denier, there is a problem that the drape and stretchability are poor, and when the denier is more than 100 denier, the surface texture and the appearance of the fabric are deteriorated.

The higher the intrinsic viscosity difference between the high viscosity high shrinkage modifier polyester and the low viscosity polyester, the higher the stretchability due to the difference in shrinkage difference caused by the shrinkage difference. However, the larger the viscosity difference, the larger the defective amount in the weaving and knitting process , Excessive shrinkage, and softness and soft touch such as cotton or wool are limited.

If the intrinsic viscosity difference between the high viscosity high shrinkage modifying polyester and the low viscosity polyester is too small, it is difficult to have elasticity or volume feeling due to the difference in shrinkage ratio between the two components in the yarn after dyeing, The difference in viscosity between the esters is preferably 0.20 to 0.22.

The polyester yarn produced in the partially oriented (POY) polyester yarn manufacturing step (S20) containing the nano photocatalyst particles is used as a warp yarn.

The superabrasive 2 comprises polyester fibers containing nano-photocatalyst particles. The nano-photocatalyst particles contained in the polyester have an ultraviolet blocking function and an antibacterial function.

Nanoparticles generally mean particles with a size in the order of 1-100 nanometers, and nano-sized particles exhibit new electrical, magnetic, and optical properties unexpected in bulk materials. Among them, titanium dioxide nano-sized particles are attracting attention as an antimicrobial agent due to their excellent antibacterial activity, self-purification ability and low price under light irradiation. Zinc oxide particles have semiconductor properties and, when a composite with titanium dioxide is manufactured, And the recombination time of the electron and the hole pair is increased because of the difference in position. Recently, studies on antimicrobial ability of zinc oxide according to the antimicrobial principle and particle size have been suggested. Unlike titanium dioxide, zinc oxide has been reported to inhibit the growth of bacteria under ultraviolet and visible light as well as light blocking.

Generally, ultraviolet light blocking agent is a substance that prevents ultraviolet ray transmission by scattering and reflecting light in the ultraviolet wavelength range (290 to 400 nm). These sunscreen agents are variously present in organic and inorganic form. Particularly, titanium dioxide and zinc oxide in inorganic materials are often used as ultraviolet ray blocking agents for fibers. It is possible to manufacture a synthetic fiber having an ultraviolet shielding function by adding a few weight% of the titanium dioxide and zinc oxide nanoparticles as inorganic UV blocking agents to the polymerization process of the synthetic fiber, mixing and dispersing and melt spinning.

The nano photocatalyst particles may include one or more of titanium dioxide (TiO ₂ ) or zinc oxide (ZnO). The polyester fiber forming the superabrasive (2) may contain 0.5 to 2.5% by weight of nano-sized photocatalyst particles. When the nano-sized photocatalyst particles are contained in an amount of less than 0.5% by weight, the antibacterial property and ultraviolet ray blocking effect are insignificant.

The polyester fiber forming the superabsin (2) may further include a substance capable of imparting functionalities such as flame retardancy and antibacterial property. Preferably, the polyester fiber is a phosphorylated flame retardant, an inorganic antibacterial agent, etc., 10% by weight. If it is contained in an amount less than 0.4% by weight, there is a problem that the flame retardancy or antimicrobial function is insufficient. If it is contained in an amount exceeding 10% by weight, the cost may increase and the competitiveness may be lost.

The polyester fiber forming the superabsolute 2 may have a circular cross section or may be a modified cross section such as a star shape, a three-rod flat shape, a six-leaf shape, an eight-leaf shape, a W-shape or a cross shape. The melting point of the polyester fiber contained in the superabsolute fiber (2) may be preferably from 220 to 260. If the melting point is out of the range, the fiber formability may be reduced. Further, the superfine yarn is preferably 36 filaments of 50 denier.

 As described above, the polyester composite processed yarn of the present invention comprises the side-by-side type conjugated fiber separately containing the high viscosity high shrinkage modifying polyester and the high viscosity polyester in the examination (1) (1) maintains excellent stretchability and shape stability, (2) embraces soft touch, and has a sweat-absorbing quick-drying function through a cross-section and a function such as flame retardancy and antibacterial property So that it is possible to provide a composite construction work having a satisfactory stretchability and drape property while at the same time having excellent tactile feel and having functionality.

The latent bulb 1 produced in the step S10 is drawn and heat-treated (S30) by the first godet roller 7 and the second godet roller 9. The temperature of the first godet roller 7 is 90 to 100 and the temperature of the second godet roller is 40 to 50. The speed difference between the first godet roller 7 and the second godet roller 9 is 250 to 400 m / min. In the above step, the heat treatment of the latent housing 1 is performed by the contact heat treatment method by the first godet roller 7.

If the temperature of the first godet roller 7 is less than 90, the heat treatment temperature is too low to increase the internal stress due to the increase in the internal stress. If the temperature exceeds 100, the godet roller will have a large vibration, There is a concern.

When the speed difference of the godet roller is 250 m / min or less, the orientation crystallization of the fiber is low and the strength of the fiber is lowered, and problems such as non-uniform stretching may occur, which may result in defective dyeing such as a dyed yarn. On the other hand, if it is more than 400 m / min, there is a possibility of yarn splicing at the time of stretching, and there is a fear that defective yarn,

It is also preferable that the stretching ratio between the first godet roller 7 and the second godet roller 9 is 1.500 to 1.750%. When the stretching ratio is as low as 1,500 or less, the degree of orientation of the molecules in the fiber is low, and further stretching occurs in the stretching and heat treatment steps, resulting in a large shrinkage characteristic after the dyeing process. As a result, If the stretching ratio is increased to 1.750 or more, the tension applied to the yarn during the stretching and heat treatment increases and the air entanglement is not properly formed.

After the elongation and heat treatment (S30) of the pottery barrel, the non-contact heat treatment is performed once again by the non-contact heat treatment machine 8, and air entanglement is made through the pottery barn and the produced polyester 2 and the air nozzle 10 S40).

The prior art has focused on a method of manufacturing a composite construction by conducting the drawing and the heat treatment simultaneously by radiating the inspection and the superimposition. Referring to FIG. 2, in the present invention, only the latent bulb stem 1 is subjected to stretching and heat treatment, and the polyunsaturated (POY) polyester 2 is directly irradiated with an air nozzle It is characterized by air juxtaposition with examination.

As a result of the examination of the pottery which has been subjected to the stretching and the heat treatment and the fabrication of the composite yarn including the partially oriented (POY) polyester which is not subjected to the stretching and heat treatment as the superabsorbent, A knitted fabric having excellent and natural texture and excellent stretchability can be produced.

This is an improvement in that when the superabrasive 2 is stretched and heat-treated, the fiber is axially crystallized in the fiber and shrinks, resulting in poor stretchability.

The non-contact type heat treatment is preferably 150 to 230, and when the temperature is lower than 150 according to the non-contact heat treatment temperature, there is a problem that the heat setting is insufficient.

The air entraining step is performed through an air nozzle device 10 for general air entanglement in the step of entangling the stretched and heat treated pottery 1 with the polyester 2 produced through air entanglement . At this time, the pressure is applied to the air nozzle device 10 for air entanglement within 2.2 to 3.0 kg / m ² . The number of air entanglement is performed with 40 to 80 interchanges per meter. If the air nozzle pressure is less than 2.2 kg / m ^2, air entanglement may be too small to cause problems, and if the air nozzle pressure is more than 3.0 kg / m ^{2, the} yarn may be damaged.

The air entraining step is performed at a frequency of 40 to 80 EA / M (EA: number, M: METER). Here, if air entanglement is performed at less than 40 EA / M, there is a problem in process passability, and in the case of exceeding 80 EA / M, there is a problem that interlacing defects in a stripe form occur in the fabric and the knitted fabric.

On the other hand, the mixing ratio by weight of screening (1) and superabsoluble (2) constituting the polyester composite construction of the present invention may be 30 to 70% by weight of screening (1) and 30 to 70% by weight of superabsorbent (2). If the amount of the starch (2) is less than 30% by weight, the feel of the final composite construction may become too hard and the functional performance may be difficult. If the starch (2) is more than 70% by weight, the shape stability is weakened May occur.

The fibers subjected to the heat treatment and air entangling step (S40) may be finished through a winding step S50. It is preferable that the winding speed is in the range of 2,500 to 3,800 mpm in the winding step S50 so that the winding tension is 0.08 to 0.20 g / de. It is preferable that the winding speed is controlled to be lower than the second godet roller speed in order to control the winding tension to secure a stabilized cake shape, a storage power winding technique, and a problem caused by polyester shrinkage characteristics. Also, when the winding tension is less than 0.08 g / de, the tension is too low to cause yarn trimming. If the yarn tension exceeds 0.20 g / de, the shrinkage characteristics of the yarn after shrinkage There is a possibility that a bulge may occur.

Hereinafter, the present invention will be described more specifically by way of examples. It should be understood, however, that the embodiments are not intended to limit the scope of the present invention, but should be construed to facilitate understanding of the present invention.

< Example  1>

Viscosity high shrinkage modifying polyester having an intrinsic viscosity (IV) of 0.64 dl / g and a low viscosity polyester having an intrinsic viscosity (IV) of 0.43 dl / g were co-spun at a spin rate of 2700 m / min at a ratio of 5: 5 Side-by-side type pottery. This side-by-side type pottery consisted of 100 filaments of 12 filament partially oriented yarn (POY) with a strength of 3.3 g / d, elongation of 25% and elastic recovery of 28%.

(POY) polyester yarn containing 1.0 wt% of zinc oxide (ZnO) as a total weight and 0.3 wt% of titanium dioxide (TiO ₂ ) as a total weight was spun at a spinning speed of 3200 m / min Respectively. The polyester yarn is 36 filaments of 50 denier.

The stretching ratio between the first godet roller 7 and the second godet roller 9 is 1.600%, the temperature of the first godet roller is 100, the temperature of the second godet roller is 40, The speed difference between the first godet roller (GR) and the second godet roller is 280 m / min, the temperature of the non-contact heat treatment heater is 220, and the guide is guided by a guide (not shown) And the air nozzle pressure for air entrainment was 2.2 kg / cm &lt; ² &gt; To prepare a composite yarn.

The composite yarn thus prepared was kneaded at 1400TM to prepare a knitted fabric, and the knitted fabric was dyed to produce a knitted fabric for clothing.

< Example  2>

The same procedure as in Example 1 was carried out except that a high viscosity high shrinkage modifying polyester having an intrinsic viscosity (IV) of 0.68 dl / g and a low viscosity polyester having an intrinsic viscosity (IV) of 0.45 dl / g were co- To prepare a polyester composite yarn, and using this, a polyester fabric was produced.

< Example  3>

Viscosity high shrinkage modifying polyester having an intrinsic viscosity (IV) of 0.60 dl / g and a low viscosity polyester having an intrinsic viscosity (IV) of 0.42 dl / g were co-spun in the same manner as in Example 1 To prepare a polyester composite yarn, and using this, a polyester fabric was produced.

< Comparative Example  1>

A polyester composite yarn was produced in the same manner as in Example 1, except that the pottery bar stock and the superfine yarn were fed simultaneously to the stretching device, and a polyester fabric was produced using the same.

< Comparative Example  2>

A polyester composite yarn was produced in the same manner as in Example 2 except that the potting yarn and the superabsorbent yarn were fed simultaneously to the stretching device, and a polyester fabric was produced using the polyester composite yarn.

< Comparative Example  3>

A polyester composite yarn was produced in the same manner as in Example 3 except that the potting yarn and the superabsorbent yarn were fed simultaneously to the stretching device, and a polyester fabric was produced using the polyester composite yarn.

Examples 1 to 3 and Comparative Example 1 and Comparative Example 3 were subjected to the physical properties test by the following methods and are shown in Table 1.

(1) Elongation recovery rate of polyester composite yarn

 The elongation recovery rate of the polyester composite yarn was measured ten times by ASTM 6720 measurement method.

(2) The elasticity of the fabric, the elongation recovery rate

The stretchability of the fabric was measured ten times by the measurement method of KSK 0352 5.2.2, and the elongation recovery rate of the fabric was measured ten times by the method of KSK 0541.

(3) Drape property

When 10 or more experts judged that more than 8 people have drape, 6 ~ 7 people judged drape. "5 people judged drape if" X " ".

[Table 1]

In Table 1, it can be seen that Examples 1 to 3 of the present invention are superior to Comparative Examples 1 to 3 in physical properties such as elongation recovery rate, fabric stretchability, elongation recovery rate, and drapeability. If the intrinsic viscosity of the high viscosity / low viscosity polymer of the present invention is the same, it means that the stretchability of the fabric is improved by producing the composite yarn after the stretching and heat treatment only after the stretching and heat treatment. Example 1 showed better stretch recovery, woven fabric stretchability, stretch recovery and drapeability than Examples 2 and 3 because the difference in viscosity between high viscosity polyester and low viscosity polyester is 0.21. Example 2 having a viscosity difference of 0.23 showed similar results to Example 1, but drapeability was lower than Example 1. [

In Example 3, it was confirmed that the difference in viscosity was the lowest at 0.18, so that the stretchability of the fabric was remarkably lowered compared with Examples 1 and 2. This shows a similar result in the comparative example.

1: core component
2: Second component
3: Yarn Guide
4: Yarn sensor
5: Yarn Cutter
6: Supply Nip roller
7: first godet roller (GR 1)
8: Non-contact heat treatment heater
9: second godet roller (GR 2)
10: Air nozzle
11: Polyester composite construction work

Claims (10)

(1) As a result of examination, a high-viscosity high-shrinkage modifying polyester resin having an intrinsic viscosity (IV) of 0.64 dl / g and a low viscosity polyester resin having an intrinsic viscosity (IV) of 0.43 dl / Producing a partially oriented filament (POY, Partially Oriented Yarn) side by side latent barn;
(2) a 50-denier 36 filament partially oriented roughened yarn (POY) containing 1.0 wt% zinc oxide (ZnO) and 0.3 wt% titanium dioxide (TiO ₂ ) Producing a polyester yarn;
(3) stretching the latent housing by a speed difference between a first godet roller (GR) and a second godet roller;
(4) non-contact heat-treating the latent housing and entangling air with the partially oriented polyester yarn; and
(5) a winding step of the air entangled polyester composite construction work,
The potential difference between the first godet roller (GR) and the second godet roller is 280 m / min, and the temperature of the first godet roller The first godet roller and the second godet roller have a draw ratio of 1.600%, the non-contact heat treatment temperature is 220 ° C, and the air nozzle pressure for air entanglement is 100 ° C, the temperature of the second godet roller is 40 ° C, Is 2.2 kg / cm &lt; ² &gt;.
A manufacturing method of polyester composite construction.
delete delete delete delete delete delete delete A polyester composite construction manufactured by the manufacturing method of claim 1.
A fabric or knitted fabric manufactured using the polyester composite construction of paragraph 9.

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