KR102099141B1 - Elastic band with excellent elongation used for brief or boxer, and men's brief or boxer including the same - Google Patents

Abstract

Objectives of the present invention are to provide an elastic band for underpants with excellent elongation, and men′s underpants comprising the same. The elastic band for underpants comprises a fabric woven by using: warp (1) comprising a first polyester-based fiber and a spandex covering yarn; and weft (2) comprising a second polyester fiber.

Description

Elastic band for panties with excellent elongation, and men's panties including the same {ELASTIC BAND WITH EXCELLENT ELONGATION USED FOR BRIEF OR BOXER, AND MEN'S BRIEF OR BOXER INCLUDING THE SAME}

The present invention relates to a rubber band for a garment having excellent tensile elongation and a men's underwear comprising the same, specifically, a rubber band for clothing having excellent tensile strength, tensile elongation and permanent elongation, and not having a significant decrease in physical properties after aging. It relates to men's underwear including this.

In clothes, especially underwear, such as panties, there are many cases in which elastic (elastic) bands such as rubber bands are provided so as to prevent problems such as clothes flowing or spinning off the body and to securely fix the clothes on the body.

Polyurethane fibers, or spandex, are two to three times higher in strength than latex yarns, have higher linear densities, and are more resistant to chemical degradation, making them widely used in underwear, sportswear, and functional clothing that require elasticity. However, the polyurethane fiber itself is not easy to dye and is often used in a variety of ways with other fibers rather than spandex alone to impart the properties of other fibers.

Recently, with the emergence of a social culture that emphasizes self-development, such as “Warraval,” there is an increasing demand for underwear bands with physical properties such as strength and shinto suitable for activities such as sports.

Patent Publication No. 10-2013-0092528 (2013.08.20.)

The present invention has been developed in the above-described background, the first task of the present invention is to provide an elastic band for panties having excellent elongation, and the second task is to provide a men's panties including the same.

The present invention to solve the first problem described above

(1) Slant comprising a first polyester fiber and a spancar barring yarn comprising a) and b) below:

a) Screening involving polyurethane fibers

b) a first twisted yarn (DTY) and a second twisted yarn wound around the screen and having twists in the same or different directions from each other; And

(2) Weft comprising a second polyester-based fiber; provides an elastic band for panties with excellent elongation comprising a woven fabric.

In a preferred embodiment of the present invention, the sum of the mass of the first false twisted yarn and the second false twisted yarn and the mass ratio of the examination may be 3: 2 to 1: 2.

In another preferred embodiment of the present invention, the spancovering yarn may satisfy all of the following conditions 1) to 3).

1) The first false twisted yarn and the second false twisted yarn have twists in opposite directions.

2) The first false twisted yarn and the second false twisted yarn each independently have a twist number (T / M) of 500 to 3,000.

3) The spancar barring yarn is a DCY (Double Covered Yarn) in which the first twisted yarn and the second twisted yarn are wound in the opposite direction around the screening, respectively.

In another preferred embodiment of the present invention, each of the first false twisted yarn and the second false twisted yarn is independently a polyester-based fiber having an intrinsic viscosity of 0.9 to 1.2 dl / g, and the elastic band for the panty has the following condition 4) It may be satisfied.

4) 9/10 ≤ IV ₁ / IV ₂ ≤ 10/9

In condition 4), IV ₁ represents the intrinsic viscosity of the first false twisted yarn, and IV ₂ represents the intrinsic viscosity of the second false twisted yarn.

In another preferred embodiment of the present invention, the elastic band for the panty may be to satisfy both of the following conditions 5) and 6).

5) The polyurethane fiber has an average single yarn fineness of 20 to 40 denier

6) 1/3 ≤ D _U / D _C ≤3 / 4

In the condition 6), D _U represents the fineness of the screening, and D _C represents the fineness of the spancar barring yarn.

In another preferred embodiment of the present invention, it may be to satisfy the following condition 7) between the spun-covering yarn and the first polyester-based fiber.

7) 0.7≤ IV ₀ / IV _avg ≤0.85

In condition 7), IV ₀ represents the intrinsic viscosity of the first polyester fiber, and IV _avg represents (IV ₁ + IV ₂ ) / 2, where IV ₁ is the intrinsic viscosity of the first false twisted yarn. , IV ₂ represents the intrinsic viscosity of the second false twisted yarn, and assumes that both the first false twisted yarn and the second false twisted yarn are polyester fibers.

In another preferred embodiment of the present invention, the first polyester fiber may be included in the warp by forming a high-strength yarn (HSY) having a fineness of 50 denier to 150 denier.

In another preferred embodiment of the present invention, the elastic band for the panty may have a content of polyurethane in the entire fabric of 15 to 30% by weight.

In order to solve the above-mentioned second problem, the present invention provides a men's panties that include the above-described elastic band for panties.

The elastic band for panty according to the present invention has an excellent tensile strength, elongation and permanent elongation, and has the advantage that the physical properties are not significantly deteriorated even after aging due to prolonged exposure to high temperature conditions. The same is true for men's panties that include it.

As described above, in order to improve physical properties such as tensile strength and elongation of an elastic band comprising polyurethane fibers, the present inventors have developed a stretch band for panties with excellent physical properties by introducing the following structure as a result of research and sellout. Could.

The stretchable band for panties according to the present invention is 1) a stretchable band for panties comprising a weaving weave comprising a first polyester-based fiber and a spun-covering yarn and 2) a weft yarn comprising a second polyester-based fiber. . Due to such a configuration, the elastic band for the panty according to the present invention has excellent tensile strength, elongation and permanent elongation, and has the advantage that the deterioration of the excellent physical properties is not large even after aging under high temperature conditions.

Here, the spancaring yarn is a spanking (dex), that is, a carburing yarn containing polyurethane fibers, which is made by winding other fibers around the spandex, and supplements the characteristics of spandex, such as low color fastness, high coefficient of friction, and weakness in sunlight. It is one fiber. In addition, it is possible to compensate for the insufficient strength by including the first polyester-based fibers in addition to the spun-covering yarn on the warp.

In general, since the polyester-based fiber has superior strength at the same fineness as compared to the polyurethane-based fiber, by blending the polyester-based fiber, the band has excellent elasticity and excellent strength.

In addition, the spun-covering yarn is a first twisted yarn (DTY) and a second twisted yarn having twists in the same or different directions around a core comprising polyurethane fibers.

The first false twister and the second false twister may both be the right twister (s twist) or both may be the left twister (z twist), the first false twister is the coincidence, the second false twister is the left edge, or the first false twister is the left edge and the second false twister It could be a coincidence.

Preferably, the first false twisted yarn and the second false twisted yarn have suitable twists in different directions. Having twists in different directions can achieve better elasticity and elongation when exposed to various elongation and contraction situations.

Here, DTY is a draw textured yarn, which gives the fiber a strong twist and then releases it to give elasticity and elongation, and these textured yarns have a smooth surface and thus have disadvantages of low yarn content. It is an improvement.

The first false twisted yarn and the second false twisted yarn may be preferably polyester fibers. By introducing a covering yarn wound with polyurethane fibers as polyester fibers, it is possible to provide an elastic band for panties having superior tensile strength compared to polyurethane fibers having relatively weak strength.

In addition, by making the polyester fiber wound on the polyurethane fiber as a false-twist yarn, it is possible to compensate for the elongation and elasticity, which are lowered by winding the polyester fiber, which has relatively less elasticity and elongation than the polyurethane fiber.

The first false twisted yarn and the second false twisted yarn may preferably have a twist number (T / M) of 500 to 3,000, each independently. More preferably, the first false twisted yarn and the second false twisted yarn may each independently have a number of twists of 1,000 to 2,500. T / M indicates the number of twists per 1 m. As the number of twists increases, the elasticity and elongation of the fiber increase, but the strength tends to decrease. By having the number of twists in the above-described range, the elastic band for panties according to the present invention can have excellent elongation and strength.

If the number of twists is less than 500, there is a concern that the finish of the elastic band for the panty, which is the final product, may deteriorate, and when it exceeds 3,000, the strength of the twisted yarn may decrease and the durability of the band may deteriorate.

The spanning yarn may be a single covered yarn (SCY) or a double covered yarn (DCY). Preferably it may be a double cover yarn. In addition, the spancar barring yarn may have a ratio of the sum of the weights of the two twisted yarns between 2: 3 and 2: 1. When the mass ratio between the polyurethane fiber and the twisted yarn is within the above range, it may have the most stable and optimal physical properties such as tensile strength, elongation, durability, and heat aging of the elastic band for panty.

The first false twisted yarn and the second false twisted yarn are preferably polyester fibers, and may have an intrinsic viscosity of 0.9 to 1.2 dl / g each independently. More preferably, the intrinsic viscosity of the two twisted yarns may satisfy the conditional expression 9/10 ≤ IV ₁ / IV ₂ ≤ 10/9.

In the above conditional expression, IV ₁ represents the intrinsic viscosity of the first false twisted yarn, and IV ₂ represents the intrinsic viscosity of the second false twisted yarn.

For the first false twisted yarn and the second false twisted yarn, it is preferable to use those in which differences in physical properties such as intrinsic viscosity are not large in order to balance the properties of the spun-covering yarn, and therefore, it is preferable that the ratio of intrinsic viscosity is within the above range. When the difference in physical properties is large, the durability of either side is weak and is easily destroyed. In addition, when the intrinsic viscosity of the two twisted yarns satisfies the above-described range, the strength of the elastic band for the panty may be the best.

The polyurethane fibers constituting the screening of the spancaring yarn may have an average single yarn fineness of 20 to 40 denier. In addition, the screening may be made of a bundle of threads in which a plurality of filaments of the polyurethane fiber are collected. When the monofilament fineness of the polyurethane yarn is in the above range, it may have sufficient strength while having the best elasticity.

In addition, the spancovering company may satisfy the conditional expression 1/3 ≤ D _U / D _C ≤3 / 4 for the fineness D _U of the examination and the fineness D _C of the entire spancovering company, when the span has the range Covering yarns can have excellent strength. If the fineness of the screening is larger than the above range, since the specific gravity of the polyester fiber is reduced, the tensile strength of the spanring yarn may be reduced. In addition, when the fineness of the screening is smaller than the above range, elasticity and elongation of the elastic band for panty may be reduced.

In a preferred embodiment of the present invention, the spancovering yarn and the first polyester-based fiber each serve to impart elasticity and strength to the band. Preferably, the spun-covering yarn and the first polyester-based fiber preferably satisfy the conditional formula 0.7≤ IV ₀ / IV _avg ≤0.85.

In the above conditional formula, IV ₀ represents the intrinsic viscosity of the first polyester fiber, and IV _avg represents (IV ₁ + IV ₂ ) / 2, where IV ₁ is the intrinsic viscosity of the first twisted yarn, IV ₂ represents the intrinsic viscosity of the second false twisted yarn, and it is assumed that both the first false twisted yarn and the second false twisted yarn are polyester fibers. The first false twisted yarn and the second false twisted yarn included in the spanring yarn have a higher intrinsic viscosity, so that they can have better wear resistance, and accordingly, the durability of the elastic band for panty according to the present invention is excellent.

In a preferred embodiment of the present invention, the first polyester-based fiber can achieve a high-stretch yarn (HSY) having a fineness of 50 denier to 150 denier. Therefore, the elasticity and elongation that are insufficient compared to the spancaring yarn can be provided by forming the crimping, and the elasticity of the entire band is further improved.

Here, the high-strength yarn (HSY, High Shrinkage Yarn) refers to a yarn that gives a slight elasticity by forming a crimp on the yarn by applying a false twist by using a thermoplastic characteristic of polyester.

In a preferred embodiment of the present invention, the elastic band for the panty may have a content of polyurethane in the entire fabric of 15 to 30% by weight. Optimum tensile strength, elongation and permanent elongation within the above range can be realized. If the content of polyurethane is less than 15% by weight compared to the total fabric, the elasticity of the band is insufficient and the elongation becomes low. When the content of polyurethane exceeds 30% by weight, the durability and tensile strength of the band may decrease. have.

The stretch band for panty according to an exemplary embodiment of the present invention may have a tensile strength of 700N to 2,000N measured by using KS K 1308 as a test criterion with a width of 35.0 mm. Preferably, after the aging treatment of the same panty elastic band at (80 ± 1) ° C. for 72 hours, the reduction rate of the tensile strength may be 4% to 18%.

In addition, the elastic band for the panty according to an exemplary embodiment of the present invention may have an elongation measured by the same condition as the tensile strength of 200% to 300%. Preferably, the stretch rate of elongation may be 2% to 10% after aging treatment of the same elastic band for panties at (80 ± 1) ° C. for 72 hours.

In addition, the elastic band for panty according to an exemplary embodiment of the present invention may have a permanent elongation measured by the same conditions as the tensile strength and elongation of 2% to 5%. Preferably, after the aging treatment of the same elastic band for panties at (80 ± 1) ° C. for 72 hours, the permanent elongation may be 20% or less.

The present invention also provides a men's panties that include the above-described elastic band for panties, and the men's panties according to the present invention have excellent tensile strength, elongation and permanent elongation, and the mechanical properties described above are significantly deteriorated even when aged under high temperature conditions. There is an advantage that is not.

Hereinafter, the present invention will be described in more detail through examples. However, the following examples are not intended to limit the scope of the present invention, which should be interpreted to aid the understanding of the present invention.

Example 1

Polyurethane fiber with an average single yarn fineness of about 30 denier, left-twisted yarn with a fineness of about 10 denier, a polyester-based first false twisted yarn with an intrinsic viscosity of about 1.10 dl / g, a polyester with a fineness of about 10denier, and an intrinsic viscosity of about 1.10 dl / g A second twisted yarn was prepared. The first twisted yarn and the second twisted yarn were prepared to be twisted to have a twist number of 2,000 T / M.

In the screening of the polyurethane fibers with a bundle of 9 to 10 filaments, the first false twisted yarn and the second false twisted yarn were wound twice in opposite directions to prepare a spancovering yarn.

The manufactured spancovering yarn had a fineness of about 840 denier, and the weight ratio of the polyurethane fiber and the twisted yarn was about 1: 1.

The prepared span-covering yarn was mixed with a polyester-based high-strength yarn (HSY) having a fineness of about 100 denier and a twist number (T / M) of about 1,500 at a weight ratio of about 1: 2 to make a slope, and a fineness of about 150 denier. Weaving with a double-sided double-sided jacquard fabric using a polyester-based false twisted yarn (DTY) as a weft yarn was made into a band having a width of about 35.0 mm. The polyester high stretch yarn had an intrinsic viscosity of 0.80 dl / g.

Example 2

It was carried out in the same manner as in Example 1, except that the intrinsic viscosity of both the first and second twisted yarns was 1.25 dl / g.

Example 3

The same procedure as in Example 1 was carried out, but the twisting of the first false twisted yarn and the second false twisted yarn in the same direction was used, and a single-covering yarn was used to prepare a span-covering yarn.

Example 4

The same procedure as in Example 1 was carried out, but the point that the average single yarn fineness of the polyurethane fiber was 15 denier was used.

Example 5

It was carried out in the same manner as in Example 1, but the woven one was made of polyester fiber having an intrinsic viscosity of 0.7 dl / g and a fineness of 100 denier without being combusted instead of the polyester high-stretch yarn.

Comparative Example 1

It was carried out in the same manner as in Example 1, except that the polyurethane fibers were twisted with each other instead of the spancovering yarn and used as a spandex yarn of about 800de.

Comparative Example 2

It was carried out in the same manner as in Comparative Example 1, except that the polyester-based high-strength yarn had a fineness of 80 denier.

Comparative Example 3

It was carried out in the same manner as in Comparative Example 1, except that the screening company was adjusted for fineness of about 300 denier.

Experimental example

Tensile strength, elongation and permanent elongation were measured according to KS K 1308 standards for stretch bands for panties manufactured according to Examples and Comparative Examples. Tensile strength represents the tensile force applied when it is broken, elongation represents the ratio at which the length at break is increased compared to the initial length, and permanent elongation represents the ratio at which the band is stretched when the force is removed after tension.

Table 1 shows the tensile strength, elongation, and permanent elongation, respectively. In addition, after each band was left at (80 ± 1) ° C for about 72 hours to age, the physical properties were measured under the same conditions. The measured results are shown in Table 2 below.

division The tensile strength
(N) Shinto
(%) Permanent
(%) Example 1 1,320 240 3 Example 2 1,415 215 5 Example 3 1,300 236 4 Example 4 1,195 235 6 Example 5 1,493 213 4 Comparative Example 1 1,072 262 13 Comparative Example 2 976 256 8 Comparative Example 3 1,159 195 11

Referring to Table 1, it can be seen that the elastic bands for the panties of Examples 1 to 5 using the spancovering yarn showed better tensile strength compared to Comparative Examples 1 to 3 without using the covering yarn. In addition, it was found that the higher the intrinsic viscosity of the first twisted yarn and the second twisted yarn, the stronger the tensile strength. In addition, in the case of Example 5, it was confirmed that it showed low elongation as a result of using non-flammable polyester fibers instead of high stretch yarns on the warp.

When both the tensile strength and elongation were considered, it was found that the elastic band of Example 1 had optimal properties.

division The tensile strength Shinto Permanent
(%) Measure
(N) Reduction rate
(%) Measure
(%) Reduction rate
(%) Example 1 1,221 7.5 230 4.2 4 Example 2 1,350 4.6 198 7.9 5 Example 3 1,173 9.8 221 6.4 5 Example 4 1,106 7.4 228 3.0 8 Example 5 1,402 6.1 199 6.6 7 Comparative Example 1 998 6.9 176 32.8 16 Comparative Example 2 792 18.9 188 26.6 13 Comparative Example 3 1,087 6.2 148 24.1 15

Referring to Table 2, it was found that the bands had poor physical properties under high temperature aging conditions. Particularly, in the case of the elastic bands according to Comparative Examples 1 to 3, it was found that a polyurethane fiber was exposed instead of the cabaring yarn, and the physical properties were significantly deteriorated due to aging under high temperature conditions. Therefore, it was confirmed that these are not suitable for use as an elastic band for panties.

Although the elastic bands according to Examples 1 to 5 had no serious deterioration in physical properties due to aging, it was confirmed that they followed the tendency of the initial measured values.

Claims (9)

(1) Slant comprising a first polyester fiber and a spancar barring yarn comprising a) and b) below:
a) Screening involving polyurethane fibers
b) First twisted yarn (DTY) and second twisted yarn, which are wound around the screen, have twists in the same or different directions, and independently have an intrinsic viscosity of 0.9 to 1.2 dl / g. ; And
(2) Weft comprising a second polyester-based fiber; stretch band for panties with excellent elongation comprising a fabric woven using, intrinsic viscosity IV ₁ of the first twisted yarn and intrinsic viscosity IV ₂ of the second twisted yarn A satisfies 9 / 10≤IV ₁ / IV ₂ ≤10 / 9, and the elongation measured according to the following measurement method is a reduction rate of 2% to 10% after aging treatment at 80 ° C for 72 hours. Elastic band:
[How to measure]
Elongation was measured according to the KS K 1308 standard by setting the width of the elastic band for the panties to 35.0 mm. According to claim 1,
The elastic band for the panty, characterized in that the sum of the mass of the first twisted yarn and the second twisted yarn and the mass ratio of the screening are 3: 2 to 1: 2. According to claim 1,
The spancar barring yarn is an elastic band for clothing, characterized in that it satisfies all of the following conditions 1) to 3):
1) The first false twisted yarn and the second false twisted yarn have twists in opposite directions to each other
2) The first false twisted yarn and the second false twisted yarn each independently have a twist number (T / M) of 500 to 3,000
3) The spanring yarn is a double-covered yarn (DCY) in which the first twisted yarn and the second twisted yarn are wound in opposite directions around the screening, respectively. delete According to claim 1,
The elastic band for panties is characterized in that it satisfies both of the following conditions 5) and 6):
5) The polyurethane fiber has an average single yarn fineness of 20 to 40 denier
6) 1/3 ≤ D _U / D _C ≤3 / 4
In the condition 6), D _U represents the fineness of the screening, and D _C represents the fineness of the spancar barring yarn. According to claim 1,
An elastic band for panties characterized by satisfying the following condition 7) between the spancar barring yarn and the first polyester fiber:
7) 0.7≤ IV ₀ / IV _avg ≤0.85
In condition 7), IV ₀ represents the intrinsic viscosity of the first polyester fiber, and IV _avg represents (IV ₁ + IV ₂ ) / 2, where IV ₁ is the intrinsic viscosity of the first false twisted yarn. , IV ₂ represents the intrinsic viscosity of the second false twisted yarn, and assumes that both the first false twisted yarn and the second false twisted yarn are polyester fibers. According to claim 1,
The first polyester fiber is a stretch band for panty, characterized in that the fineness is formed in a high elastic yarn (HSY) with a denier of 50 denier to 150 denier. According to claim 1,
The panty elastic band is a panty elastic band, characterized in that the content of polyurethane in the entire fabric is 15 to 30% by weight. Men's panties comprising the elastic band for panties according to any one of claims 1 to 3 and 5 to 8.