KR100958520B1 - Polyester complex yarn with deep and level dyeing property and its manufacturing method - Google Patents

Abstract

The present invention supplies two polyester semi-stretched yarns (POY) having a single yarn fineness of 1 to 5 deniers and a multifilament fineness of 50 to 150 deniers, and draws only one of them to be screened. A gentleman (POY) relates to a manufacturing method of a concentrated salty biaxially blended blended yarn having a total denier of 80 to 250 denier, which is manufactured by giving an air entangle as super yarn in an unstretched state.

According to the present invention, cost reduction can be achieved by using regular POY as the core and super yarn, and the screening has a higher shrinkage rate than that of general stretch yarn, thereby reducing the dyeing difference between the core and super yarn and improving the leveling.

Concentrated double-shrink blending, screening, super yarn, regular semi-extended yarn, leveling

Description

Polyester complex yarn with deep and level dyeing property and its manufacturing method

1 is an enlarged transverse cross-sectional view of a biaxial shrinkage work of the present invention.

The present invention relates to a highly salty biaxially blended blended yarn using a semi-high shrinkable stretched yarn as a core yarn, and a semi-stretched yarn (POY) as a superfine yarn (effect yarn), and a fabrication method thereof. And it will be able to express excellent elasticity, drape, thickening and leveling.

The present invention has a polyester deep regular yarn (POY) as a deep yarn, in order to obtain a fabric having excellent deep colorability compared to the general air interlocking yarn (ITY), has a soft touch, and has excellent uniformity without the twisting process The present invention relates to a concentrated bisulfate mixed fiber processed yarn and a method for manufacturing the same, which are drawn at a suitable draw ratio, and more specifically, a single semi-finished yarn having a single yarn fineness of 1 to 5 deniers and a total denier of 50 to 150 deniers (POY) Applied by superfine yarn, POY applied by screening is stretched to draw ratio 1.45 ~ 1.55 and heat treated at a temperature of 130 ~ 140 ℃ on hot plate to have 7 ~ 10% non-aqueous shrinkage ratio and then used as superfine yarn It is interlaced with POY, and relates to a method for producing a concentrated salt biaxial blended yarn having a total denier of 80 to 250 denier depending on the type of application.

The method of making air entangled yarns by using air yarns with different properties such as shrinkage is the most basic method of processing yarn manufacturing. The elasticity of drawn yarns, the deep color of POY, soft touch, and low manufacturing cost This led to an explosive increase in demand in the early days. In recent years, a variety of processing methods such as air jet texturing and combustion have been applied to manufacture products of improved quality.However, due to the low manufacturing cost and the simple method, the air handler has a large amount of low cost. It is developed for a product.

Conventionally, a method of using a release cross-section yarn to manufacture a fabric having a thick salt is introduced in Japanese Patent Application Laid-Open No. 03-119133, but in this case, since there is no difference in the non-aqueous shrinkage ratio of the two yarns applied to have a somewhat dry touch. There was a problem that the bulkiness falls.

Further, according to Japanese Patent Application Laid-Open No. 07-109665, a low shrinkage polyester composite yarn having a specific shrinkage ratio of 7% or less having the same configuration as a high shrinkage polyester composite yarn having a non-shrinkage rate of 15% or more, to which two polymers having different solubility in alkali are applied. After producing a composite yarn, we have proposed a sectional cross-section composite yarn in which the alkali-soluble portion is removed by weaving and reducing the yarn. However, the fabric woven using such a composite yarn shows a unique touch and pitch skin sensitivity due to excellent resilience and release cross section, but has some disadvantages. First of all, yarns applied as deep and ultra-fine yarns have to be produced through compound spinning, which inevitably raises the cost. In addition, there is an additional cost increase in wastewater treatment due to the availability fraction melted away by weight loss.

Lead-free sizing products developed using bi-shrink blended yarns have the largest size in the market where synthetic fibers are applied, but various consumers due to the flat touch, skitteriness due to color difference between core and super-foam, and difficulty in developing dark colors There is a limit to meeting the needs of people.

The present invention is to solve the above problems of the fabric using a conventional bi-shrink blended yarn, by using a stretched yarn to give a semi-high shrinkability through the control of the draw ratio, by producing a concentrated salt twin-shrink blended yarn with POY When dyeing, it reduces the color difference between core and super yarn, and shows the improved leveling.The process cost can be reduced by reducing the two-step process of manufacturing and weaving the drawn yarn into one step, and the garment made of this fabric has soft touch. It is a technical problem to provide a manufacturing method of a processed yarn that can achieve a remarkably excellent effect when compared to the conventional bi-shrink mixed yarn fabric paper.

The present invention relates to a method for producing a concentrated salt shrinking mixed fiber using a semi-high shrinkage stretched yarn and a semi-stretched yarn (POY), in particular, a polyester regular POY having a single yarn fineness of 1 to 5 deniers and a total denier of 50 to 150 deniers, respectively. As a deep seaweed, the POY applied for screening is drawn at a draw ratio of 1.45 to 1.55, and then air-interacted with the POY applied as the superfine yarn, so that the total denier of the processed yarn is 80 to 250 deniers. A method for producing a shrinkage blended yarn.

Weaving is made with a rapier loom in consideration of warp and weft density by using the concentrated salt twin-shrink blended yarn manufactured in this way, and it is used for screening by dehydrating the woven dough sufficiently and then undergoing a process including dry heat setting, expansion and dyeing. The semi-shrinkable stretched yarn and POY, which is used as yarn, can be used to weave fabrics with excellent leveling, deepening, elasticity, drape and soft touch.

Hereinafter, described in detail with reference to the drawings.

In the manufacturing method of the biaxially blended processed yarn of the present invention, a single yarn fineness of 1 to 5 deniers and a total of 50 to 150 deniers are supplied with two polyester semi-stretched yarns (POY), and only one of them is a draw ratio (DR). 1.45-1.55, the heat roller (HR) temperature 90-100 degreeC, the heat plate (HP) temperature of 125-135 degreeC extending | stretching, and screening (2 of FIG. 1), and the other semi-stretched yarn (POY) is In the non-stretched state, it is characterized by interlacing at an air pressure of 2 to 5 kgf as superfine yarn (1 in FIG. 1).

The stretched screening is preferably a semi-stretched stretched yarn having a strength of 4.0 to 4.5 g / d, an elongation of 35 to 45%, and a non-aqueous 7 to 10%. It becomes possible to express characteristics such as homogeneous and bulky.

The high strength and low elongation of the drawn yarns are internally distributed by the tension repeatedly applied during post-processing, and the low strength and high elongation polyester POY is distributed to the outside to express a kind of heart structure.

The ratio of screening and weaving is preferably in the weight ratio of 20-50% of the total processed yarn. If it is less than 20%, the elasticity of the fabric is not greatly expressed during fabric production, and if it is less than 50%, the leveling property is lowered.

In order to obtain uniform interlacing and to suppress the occurrence of pin yarn, the air pressure during interlacing should be appropriately set according to the selected type.When using mono yarns with small mono denier and high number of pillars, 2 to 3 When using kgf or mono denier and a small number of pillars, set it to 3 kgf or more.

Hereinafter, the present invention will be described in more detail with reference to Examples and Comparative Examples.

Example 1

As a screening, 80-denier 36 filament polyester semi-drawn yarn (POY) is used to draw a draw ratio (DR) of 1.5 to produce a semi-high shrinkable stretched yarn, and at the same time interlaced with 85 denier 72 filament polyester POY. At this time, the POY used as the screening is treated at a temperature of HR 95 ° C. and a temperature of HP 135 ° C., and the physical properties after heat treatment are 4.2g / d in strength, 35% elongation, and 8% nonaqueous.

Table 1 shows the results of evaluating the quality of the fabric after weaving, dyeing, and processing the fabric by a conventional method using the biaxially blended mixed yarn manufactured as described above.

Example 2

The POY applied by the screening is stretched to DR 1.5 using a 120 denier 36 filament polyester POY, and the POY used as the super yarn is used in the same manner as in Example 1 except that a polyester POY of 120 denier 72 filaments is used.

Table 1 shows the results of evaluating the quality of the fabric after weaving, dyeing, and processing the fabric by a conventional method using the biaxially blended mixed yarn manufactured as described above.

Comparative Example 1

A blend fiber is prepared by air-interlacing a polyester stretched yarn of 50 denier 36 filaments of 40% elongation and 85 denier 72 filaments of 150% elongation.

Table 1 shows the results of evaluating their quality after weaving, dyeing, and processing the polyester blended yarns prepared in this way to prepare the finished fabrics.

Comparative Example 2

After polyester two POY of 120 denier 36 filament of 150% elongation was spun and stretched to DR 1.25 to prepare a polyester stretched yarn.

Table 1 shows the results of evaluating their quality after weaving, dyeing, and processing the polyester blended yarns prepared in this way to prepare the finished fabrics.

Comparative Example 3

The blended yarn is manufactured by air entanglement of polyester drawn yarn of 80 denier 36 filament of 40% elongation and polyester drawn yarn of 120 denier 36 filament of 40% elongation.

Table 1 shows the results of evaluating their quality after weaving, dyeing, and processing the polyester blended yarns prepared in this way to prepare the finished fabrics.

Table 1 Fabric Quality Evaluation Results

Note) The evaluation of fabric quality is very good when 40 people of textile workers are judged to be excellent as a result of visual and emotional tests, and when 20 or more are judged to be excellent, 10 or more are judged to be excellent. Usually, the case where it judged that 9 or less were excellent was judged as defect.

Compared to the blend of conventional stretched yarn and semi-stretched yarn (POY), the concentrated salt shrinkage blended yarn of the present invention can obtain a cost reduction effect by using regular POY as a core-superfine yarn, and the screening has a higher shrinkage rate than that of general stretched yarn. As a result, the dyeing difference between the core and the ultrasonography is reduced, and the leveling property is improved. In particular, by applying POY as a super yarn, it is possible to manufacture a concentrated salt shrinkage mixed fiber processed yarn in which deep color is expressed.

In addition, when applied to the fabric it is possible to weave a fabric having excellent leveling, deepening, elasticity, drape and soft touch.

Claims (2)

In the manufacturing method of a biaxially blended yarn, two polyester semi-stretched yarns (POY) having a single yarn fineness of 1 to 5 deniers and a fineness of a multifilament of 50 to 150 deniers are supplied, and only one of them is a draw ratio (DR). 1.45 ~ 1.55, Heated roller (HR) temperature 90 ~ 100 ℃, Hot plate (HP) temperature 125 ~ 135 ℃ to draw and screening. The remaining 1 semi-drawn yarn (POY) is superheated in the unstretched state. A method for producing a polyester thick salt bishrink blended yarn, which is produced by imparting air entanglement. The method of claim 1, wherein the stretched screening has a physical property of strength of 4.0 to 4.5g / d, elongation 35 to 45%, specific shrinkage of 7 to 10%.

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