KR100558687B1 - A warp knitting fabric having an excellent touch and form-stability - Google Patents

Abstract

The present invention relates to a warp knit excellent in touch and shape stability.

Specifically, the surface tissue yarn of the warp knitted fabric of the present invention is a polyester microfiber yarn having a single yarn fineness of 0.3 to 0.9 denier, and the back surface yarn is a synthetic fiber Taeseodo yarn having a single yarn fineness of 1 to 15 denier, and the surface tissue yarn: back surface yarn The weight ratio of is 30 to 80% by weight: 70 to 20% by weight.

The warp knitted fabric of the present invention can be mainly used for clothing because of its excellent touch, hairiness, durability (shape stability) and appearance.

Warp knitted fabric, polyester, microfiber, surface texture, back surface texture, texture, shape stability

Description

Warp knitting fabric having an excellent touch and form-stability}             

The present invention relates to a warp knit excellent in touch and shape stability.

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 ultrafine fibers of 0.05-0.2 denier level produced by the two-component eluting spinning method, the hardness of the fabric was excellent and the appearance of the processed paper was good. 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, hair properties, durability and appearance by appropriately adjusting the combination of the yarn material in the manufacture of warp knitted paper to overcome the various problems described above.

The present invention seeks to provide a warp knitted paper having excellent processability such as diameter and size of a piece of cotton, and having excellent feel, hairiness, durability (shape stability) and appearance.

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 polyester fine microfiber yarn having a single yarn fineness of 0.3 ~ 0.9 denier, the back surface yarn is a synthetic fiber Taeseodo yarn having a single yarn fineness of 1 ~ 5 denier, the surface tissue yarn: back surface yarn A weight ratio of 30 to 80% by weight: 70 to 20% by weight relates to the warp knitted paper.

Hereinafter, the present invention will be described in detail.

First, the surface texture yarn of the warp knitted fabric of the present invention is a polyester ultrafine yarn having a single yarn fineness of 0.3 to 0.9 denier or less. The polyester ultra-fine yarn is prepared by using a two-component eluting composite fiber having a polyester component and an alkali soluble copolyester as sea component as a surface tissue yarn to knit a warp knitted paper, and then eluting the sea component in a post-processing process. do. In other words, in order to improve processability, the two-component eluting composite fiber is used as a surface tissue yarn, and the supernatant is eluted by dissolving the sea component after being diameterd, chopped and brushed.

If the single yarn fineness of the surface tissue yarn exceeds 0.9 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 tissue yarn is less than 0.3 denier, the touch becomes soft or the hairs are easily dropped or entangled by friction, resulting in poor appearance.

Next, the back surface yarn of the warp knitted fabric of the present invention is a synthetic fiber Taeseodo yarn having a single yarn fineness of 1 to 5 deniers. The synthetic fiber Taeseodo yarn may use polyester filament or polyamide 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 30 to 80 wt%: 70 to 20 wt%. 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 70% by weight, the resilience of the warp knit is improved, but the surface feel and appearance are deteriorated.

The warp knitted fabric of the present invention uses a two-component eluting composite fiber having a polyester component of a seaweed component and an alkali-soluble co-polyester having a single component fineness of 0.3 to 0.9 denier after elution of the sea component as a yarn for the surface texture, and a single yarn fineness Synthetic warp knitted fabric is fabricated using 1 ~ 5 denier synthetic fiber umsum yarn as a backing yarn, and it can be manufactured by brushing, preliminary set, weight loss (sea component dissolution), dyeing, buffing and final setting under known conditions. .

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 sea component is eluted at the time of post-processing, so that the surface tissue yarn becomes ultra-fine. Feel can be expressed.

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

Elution type composite fiber with polyethylene terephthalate as a component and 0.4-denier island component fineness formed after dissolving the sea component is made of polyester copolymer having excellent alkali hydrolysis ability as seaweed. A light letter having a density of 23 bones / cm was produced using a polyester multifilament having a thickness of 2.5 denier as a yarn of a backside 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 brushed and pre-set, and then reduced in 30% of a 1% concentration and an aqueous solution of caustic soda at 98 ° C. for 30 minutes, dyed, buffed and finally set (180 ° C.) to prepare a processed warp knitted fabric. 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% Backside Yarn Polymer Type Surface texture (denier) Back side tissue (denier) Example 1 0.4 2.5 55 Polyester Example 2 0.7 1.5 35 Polyamide Comparative Example 1 0.05 2.5 55 Polyester Comparative Example 2 1.0 1.0 35 Polyester Comparative Example 3 0.7 1.5 18 Polyester Comparative Example 4 0.7 1.5 75 Polyamide

Comparative Example 5

Except for using a superfine polyester yarn having a single yarn fineness of 0.4 denier produced 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 as surface tissue yarns in a two-component split composite spinning method to prepare warp knitted papers in the same process and conditions as in Example 1, except that ultrafine yarns having a single yarn fineness of 0.2 denier were 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. ◎ is considered to be soft for 8 or more people, △ is considered to be soft for 5 to 7 people, and △ is considered to be soft for more than 8 people.

Repulsive

Based on the results of sensory evaluation by 10 experts. The case where 8 or more persons are judged to be repellent is classified as ◎, the case where 5 to 7 persons are judged to be repellent is △, and the case where 8 or more persons are judged to be repellent is divided into 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 (3)

The surface tissue yarn is polyester microfiber yarn with single yarn fineness of 0.3 ~ 0.9 denier, and the back surface yarn is synthetic fiber Taeseodo yarn with single yarn fineness of 1 ~ 5 denier, and the surface tissue yarn in the processed warp knitted fabric: 30 to 80% by weight: 70 to 20% by weight characterized in that the warp knitted paper excellent in touch and shape stability. The touch and shape stability according to claim 1, wherein the surface tissue yarn prior to the sea component elution step is an island-in-the-sea composite fiber composed of a sea component of a co-polyester and an island component having a polyester component and a sea component of a copolyester. This excellent light letter. The warp knit having excellent touch and shape stability according to claim 1, wherein the synthetic fibrous fine yarn is polyester yarn or polyamide yarn.