KR100362036B1 - A warp knitting fabric having an excellent touch and form-stability, and a process of preparing the same - Google Patents

Abstract

The present invention relates to a warp knitted fabric excellent in tactile feel and form stability and a method of manufacturing the same. Specifically, the warp knitted fabric of the present invention is a surface microfiber yarn of ultra fine yarn having a single yarn fineness of 0.03 to 0.09 denier, and a back surface yarn of synthetic fiber is a single fiber fine yarn having a single yarn fineness of 1 to 5 denier, and the surface tissue yarn in a processed warp knitted fabric: The weight ratio of the backing yarn is characterized in that 40 to 80% by weight: 60 to 20% by weight. In addition, the manufacturing method of the present invention is characterized in that the pretreatment, weight loss, dyeing, buffing and final heat treatment after the napping treatment so that the shrinkage of the warp knitted fabric after the knitting is 40% or more. The warp knitted fabric of the present invention is mainly useful for clothing because of its excellent feel, hairiness, durability (shape stability) and appearance.

Description

A warp knitting fabric having an excellent touch and form-stability, and a process of preparing the same}

The present invention relates to a warp knitted fabric excellent in tactile feel and form stability and a method of manufacturing the same.

As the fiber becomes thinner, the bending stiffness is lowered, so that the forge made of the ultrafine fiber has the advantage of having a very soft touch. In addition, the development of ultra-fine technology of synthetic fibers has been the motive for greatly improving the merchandise of clothing-sensitive materials.

In general, the production method of ultra-fine fibers can be classified into three types: direct spinning, two-component split spinning, and two-component eluted spinning. The fineness of the ultrafine fibers manufacturable by the direct spinning method is 0.3-0.5 denier and the fineness of the ultrafine fibers manufacturable by the two-component split spinning method is 0.2 denier, whereas the fineness of the ultrafine fibers manufacturable by the two-component elution spinning method is 0.05. Even denier levels can be produced.

Commercialization using such ultra-fine fibers is progressing in various ways in the textile sector, but in the knitting sector, especially in the warp knitting sector, due to various shortcomings generated during canon and post-processing, the commercialization is not progressed.

Specifically, when the ultra-fine fibers of 0.3 ~ 0.5 denier level manufactured by the direct spinning method are applied to warp knitted fabrics, since many filaments are dispersed, the warp and weaving properties are very poor, and the specific surface area of the yarn is increased, raising the There is a problem that the fairness is poor, the napped state of the warp knitted paper produced is uneven and appearance is also poor.

On the other hand, when the ultra-denier fiber of 0.2 denier level manufactured by the two-component split type composite spinning method composed of nylon / polyester is applied to warp knitted fabric, due to the incompatibility of nylon and polyester, Nylon and polyester are segregated, resulting in poor hardness and weaving, and poor brushing. Uneven appearance of the warp knitted fabric produced is poor appearance. In addition, since nylon and polyester are mixed, dyeing is difficult and color fastness is reduced.

On the other hand, when the warp knitted fabric was manufactured using the composite fiber of 0.03 to 0.2 denier level prepared by the two-component eluting spinning method, the diameter of the processed paper was excellent and the fineness of the fabric was excellent. Is too thin, the formation of the napped after the elution is agglomerated with each other, or the formation of the nipple formed by the friction easily occurs, the durability and appearance worsens.

The present invention is to provide a warp knitted fabric with excellent touch, bristles, durability and appearance by appropriately adjusting the combination of the yarn material when manufacturing the warp knitted fabric in order to overcome the various problems described above.

The present invention aims to provide a warp knitted fabric having improved processability, such as a diameter of a warp and a piece, and having excellent feel, fineness, durability (shape stability) and appearance, and a manufacturing method thereof.

The present invention relates to a warp knitted fabric having a soft touch and excellent in hairiness, shape stability and appearance. Specifically, the present invention is characterized in that when manufacturing the warp knitted using ultra-fine yarn, the single yarn fineness and weight ratio of the surface tissue yarn and the back tissue yarn are properly adjusted.

More specifically, the present invention is a surface microfiber yarn of ultra fine yarn having a single yarn fineness of 0.03 to 0.09 denier, and a backing yarn is a synthetic fibrous fine yarn having a single yarn fineness of 1 to 5 denier, and the surface tissue yarn in a processed warp knitted fabric: The weight ratio of the yarn is 40 to 80% by weight: 60 to 20% by weight relates to a warp knitted fabric excellent in touch and shape stability.

In the present invention, the composite fiber composed of a fiber-forming component having a single yarn fineness of 0.03 to 0.09 denier and an eluting component is used as a surface tissue yarn, and a synthetic fiber Taeseodo yarn having a single yarn fineness of 1 to 5 denier is used as a back surface yarn. After the letter was knitted, the brushed fabric was brushed to have a shrinkage of 40% or more, and then preheated, reduced (removing the eluted component in the composite fiber), dyed, buffed and final heat treated. A method for producing this excellent warp knitted paper.

Hereinafter, the present invention will be described in detail.

First, the present invention uses a super-fine yarn having a single yarn fineness of 0.03 ~ 0.09 denier as a surface tissue yarn in the manufacture of warp knitted paper. The ultra-fine yarn is a method of dissolving the warp knitted fabric using a two-component eluting composite fiber having a fiber-forming component of polyester and an eluting component of an alkali-soluble copolyester as a surface tissue yarn, and then eluting the eluting component in a post-processing process. Is manufactured. In other words, in order to improve processability, the two-component eluting composite fiber is used as a surface tissue yarn, and the eluted component is eluted after being polished, chopped, and brushed.

When the single yarn fineness of the surface tissue yarn exceeds 0.09 denier, the hairiness and the durability of the hair are improved, but the touch is hard and the lighting effect is lowered. If the single yarn fineness of the surface texture yarn is less than 0.03 denier, the touch becomes soft but the hairs are easily detached or entangled by friction, resulting in poor appearance.

On the other hand, the present invention uses a synthetic fiber Taeseodo yarn having a single yarn fineness of 1 to 5 denier as the back surface yarn of warp knitted paper. It is preferable that the said synthetic fiber taemdo yarn is a polyester filament. If the single yarn fineness of the back surface yarn is less than 1 denier, proper resilience cannot be imparted to the warp knitted paper (processed paper). If the single yarn fineness exceeds 5 denier, the fairness such as canon and lattice deteriorates. The repulsion of the letter is so large that it is difficult to express a soft touch on the surface.

The warp knitted fabric of the present invention has a weight ratio of surface tissue yarn: back tissue yarn 40 to 80% by weight: 60 to 20% by weight. If the weight ratio of the backside yarn in the warp knitted fabric (based on the processed paper) is less than 20% by weight, the ratio of the ultrafine yarn is relatively increased, resulting in excellent surface feel and appearance but poor repellency (draping property) of the warp knitted fabric. When the weight ratio exceeds 60% by weight, the resilience of the warp knit is improved, but the surface feel and appearance are deteriorated.

In the manufacturing method of the present invention, the fiber-forming component is polyester, and the eluting component is an alkali-soluble co-polyester. It is used to assemble warp knitted paper by using synthetic fiber Taesumdo yarn with single yarn fineness of 1 ~ 5 denier as the yarn of the back side tissue, and then raise the dough shrinkage to 40% or more before preheating . The present invention can be prepared by preliminary set, weight loss (removal of components), dyeing, buffing and final setting after raising as described above. The density of the processed warp knitted fabric is preferably 40 to 60 copies / inch.

Since the warp knitted fabric of the present invention is a two-component eluting yarn of the surface tissue, it has excellent process permeability such as diameter and cutting, and at the same time, the eluting component is eluted during the post-processing, so that the surface tissue yarn becomes ultra-fine. It can express a touch.

On the other hand, the warp knitted fabric of the present invention can solve the problem that the touch is too soft when the warp knitted fabric is made with conventional two-component eluting yarns because the back tissue yarns have the appropriate fineness and can express excellent drape. . Further, the warp knitted fabric of the present invention is excellent in hair growth and hair growth by appropriately adjusting the fineness and weight ratio of the surface tissue yarn.

Hereinafter, the present invention will be described in more detail with reference to Examples and Comparative Examples. However, the present invention is not limited only to the following examples.

Example 1

Elastomeric composite fibers with polyethylene terephthalate as a fiber-forming component and a polyester copolymer polymer having excellent alkali hydrolyzability as an eluting component, and a fiber-forming component fineness of 0.04 denier formed after eluting the eluting component are used as the yarn for the surface tissue. Then, a single knit fine yarn having a density of 23 densities / cm was produced using a polyester multifilament having a single-density fineness of 2.5 deniers as a yarn for the back structure. At this time, the weight ratio of the surface tissue yarn: back tissue yarn in the warp knitted fabric is 45% by weight: 55% by weight. The prepared warp knitted fabric was raised to 50% shrinkage, and then pre-set continuously, and then reduced for 30 minutes in an aqueous solution of caustic soda at 1% concentration and 98 ° C., dyed, buffed and finally set (180 ° C.) to process the warp knitted fabric. Manufacture. The results of evaluating the quality characteristics of the warp knitted paper are shown in Table 2.

Example 2 and Comparative Example 1 to Comparative Example 4

Processed warp knitted papers were manufactured by the same process and conditions as in Example 1 except that the cutting conditions were changed as shown in Table 1. The results of evaluating the quality characteristics of the processed warp knitted paper are shown in Table 2.

Manufacture conditions division Yarn island Cotton tissue weight% Surface texture (denier) Back side tissue (denier) Example 1 0.04 2.5 55 Example 2 0.07 1.5 35 Comparative Example 1 0.05 15 55 Comparative Example 2 1.0 1.0 35 Comparative Example 3 0.05 1.5 18 Comparative Example 4 0.06 1.5 75

Comparative Example 5

Except for using a superfine polyester yarn having a single yarn fineness of 0.04 denier prepared by directly spinning polyethylene terephthalate as a surface tissue yarn, warp knitted paper was prepared in the same process and conditions as in Example 1. The results of evaluating the quality characteristics of warp knitted paper are shown in Table 2.

Comparative Example 6

Poly terephthalate and polyamide 6 were spun into a surface texture yarn in a two-component split composite spinning method to prepare warp knitted paper using the same process and conditions as in Example 1, except that ultrafine yarn having a single yarn fineness of 0.02 denier was used. The results of evaluating the quality characteristics of warp knitted paper are shown in Table 2.

Light letter quality characteristic evaluation result division Kyung Sung Jeong Organization Raising Surface Softness Repulsive Adaptability (appearance) Example 1 ◎ ◎ ◎ ◎ ◎ ◎ Example 2 ◎ ◎ ◎ ◎ ◎ ◎ Comparative Example 1 ◎ ◎ ◎ ◎ ◎ × Comparative Example 2 ◎ ◎ ◎ × △ △ Comparative Example 3 ◎ ◎ ◎ ◎ × △ Comparative Example 4 ◎ ◎ ◎ × ◎ △ Comparative Example 5 × × × ◎ ◎ × Comparative Example 6 × × × ◎ ◎ ×

In the present invention, the quality characteristics of warp knitted paper are evaluated by the following method.

Surface softness

Based on the results of sensory evaluation by 10 experts. (Circle) and 8 or more judged that the softness was judged to be soft, and the case where 8 or more judged that the softness was bad was divided into x.

Repulsive

Based on the results of sensory evaluation by 10 experts. The case where 8 or more persons are judged to be repellent is divided into ◎, the case where 5 to 7 persons are judged to be repellent is classified as △, and the case where 8 or more persons are judged to be repellent is classified as x.

· Kyungsung

In the same economy, when the economy was good at 500m / min, there was no recovery of the hourly expectation due to the defect of yarn, and the economy was in good condition (◎). In normal state (△), when the number of times per capita was more than 3 times, it was judged that the canon was in poor condition (×). Based on the situation, it was calculated as the average number of times per hour.

Fabrication

In the same knitting machine, at the speed of 1,000m / min, the knitting state is in good condition (◎) when there is no epoch of anticipation due to the defect of yarn during knitting, and when the epoch of the anticipation of the hourly expectancy is 1 or 2 times When the number of battalions per hour is more than three times in the normal state (△), it is judged that the knitting is bad (×), and the number of battalions is based on the operating conditions of the expected expectations when operating for one day. It was calculated by the average number of antagonists.

· Raising

When brushing at the speed of 15m / min at the same brushing machine, good brushing is completed with 8 brushings, and the brushing is good when brushing is completed with 10 brushings. The case where more times of raising was required was determined as having poor brushability (×).

· Hair growth and appearance

Based on the results of sensory evaluation by 10 experts. (Circle) and the case where 5-7 people judge that it is a good hairiness and appearance, and (triangle | delta) and the case where 8 or more judges that it is poor hairiness and appearance were classified into × when 8 or more judged that it is favorable hairiness and appearance.

The warp knitted fabric of the present invention is very excellent in feel, hairiness, durability and appearance by appropriately adjusting the combination of the yarn material at the time of manufacture.

Claims (4)

Surface tissue yarn is ultra fine yarn with single yarn fineness of 0.03 ~ 0.09 denier, and backside yarn is synthetic fibre-finished yarn with single yarn fineness of 1 ~ 5 denier, and said surface tissue yarn in processed warp knitted fabric: 80% by weight: 60 to 20% by weight, characterized in that the warp knitted paper excellent in touch and shape stability. The warp knitted fabric of claim 1, wherein the ultrafine yarn is polyester. delete Knitting the warp knitted fabric using composite fiber composed of fiber-forming component and elution component with single yarn fineness of 0.03 ~ 0.09 denier as surface tissue yarn, and synthetic fiber Taeseom yarn with single yarn fineness of 1 ~ 5 denier as backside yarn Next, after raising the shrinkage of the warp knitted fabric to 40% or more, the warp knitted fabric having excellent touch and morphological stability, which is characterized by continuing preheating, weight loss (removal of eluted components in the composite fiber), dyeing, buffing and final heat treatment. Manufacturing method.