KR102584033B1 - seamless leggings - Google Patents

Abstract

The present invention provides a leg body (100) in which the first leg portion (10) and the second leg portion (20) are integrally woven; a band 200 integrally woven on top of the leg body 100, wherein the leg body 100 is made of a first fabric, and the band 200 is made of a second fabric, The leg body 100 further includes a pelvic portion 30 in which the first leg portion 10 and the second leg portion 20 are connected at the bottom and surrounds the user's abdomen, and the band 200 , an outer band 210 exposed to the outside; an inner band 220 disposed inside the outer band 210; an insertion space 205 formed between the outer band 210 and the inner band 220; Seamless leggings including a string 40 disposed in the insertion space 205 and exposed to the front through the outer band 210, wherein the elasticity of the second fabric is greater than that of the first fabric. provides.
The present invention has the advantage of improving comfort when worn because it minimizes seams.

Description

Seamless leggings

The present invention relates to seamless leggings.

Seamless clothing refers to clothing that has almost no seams with minimal sewing.

The design and weaving process of seamless clothing is done through computer programming.

In the general manufacturing process, another fabric must be added or coated to engrave a pattern or letter, but in the seamless manufacturing method, when the location where the pattern or letter is to be engraved is specified, the machine uses thread of a different color or adds a pattern to that area, thereby omitting the stitching process.

However, since seamless clothing is woven as a single piece in a cylindrical shape, there is a problem of reduced adhesion to the user's body in the case of active clothing with a lot of activity.

Republic of Korea Patent No. 10-1626246 Republic of Korea Registered Utility Model No. 20-0359715 Republic of Korea Registered Utility Model No. 20-0494565

The present invention was devised to solve the above-described conventional problems, and its purpose is to provide seamless leggings with improved adhesion to the body.

The present invention provides a leg body (100) in which the first leg portion (10) and the second leg portion (20) are integrally woven; a band 200 integrally woven on top of the leg body 100, wherein the leg body 100 is made of a first fabric, and the band 200 is made of a second fabric, The leg body 100 further includes a pelvic portion 30 in which the first leg portion 10 and the second leg portion 20 are connected at the bottom and surrounds the user's abdomen, and the band 200 , an outer band 210 exposed to the outside; an inner band 220 disposed inside the outer band 210; an insertion space 205 formed between the outer band 210 and the inner band 220; Seamless leggings including a string 40 disposed in the insertion space 205 and exposed to the front through the outer band 210, wherein the elasticity of the second fabric is greater than that of the first fabric. provides.

The lower end of the outer band 210 may be continuously woven with the upper end 31 of the pelvic portion 30.

The lower end of the inner band 220 may be adhesively fixed to the inner surface 32 of the outer band 210 or the inner surface 32 of the pelvis portion 30.

It further includes an adhesive band 230 disposed on the upper inner surface 32 of the pelvic portion 30, and the lower end 221 of the inner band 220 and the pelvic portion 30 are connected through the adhesive band 230. The inner surface 32 of the top 31 can be fixed by heat fusion.

The adhesive strip 230 may contain at least 20% by weight of ultrafine polyester fibers.

The present invention provides a leg body (100) in which the first leg portion (10) and the second leg portion (20) are integrally woven; A band 200 integrally woven on the top of the leg body 100; It includes a pressure member 300 heat-sealed to the inner surface of the leg body 100, wherein the leg body 100 is made of a first fabric, and the band 200 is made of a second fabric, The leg body 100 further includes a pelvic portion 30 where the first leg portion 10 and the second leg portion 20 are connected at the bottom and surrounds the user's abdomen, and the band 200 is an outer band 210 exposed to the outside; an inner band 220 disposed inside the outer band 210; an insertion space 205 formed between the outer band 210 and the inner band 220; Seamless leggings including a string 40 disposed in the insertion space 205 and exposed to the front through the outer band 210, wherein the elasticity of the second fabric is greater than that of the first fabric. provides.

The pressing member 300 may contain at least 20% by weight of ultrafine polyester fibers.

The compression member 300 includes a circular or ring-shaped first knee reinforcement portion 310 disposed at the knee portion of the first leg portion 10; A circular or ring-shaped second knee reinforcement portion 320 disposed at the knee portion of the second leg portion 20; A first knee reinforcement unit extending rearward from the left end of the first knee reinforcement unit 310 and connected to the right end of the first knee reinforcement unit 310 via the back of the first leg unit 10. (330); A second knee reinforcement unit extending rearward from the left end of the second knee reinforcement unit 320 and connected to the right end of the second knee reinforcement unit 320 via the rear surface of the second leg unit 20. (340); may include.

One end of the first knee reinforcement part 330 is connected to the left end of the first knee reinforcement part 310, the other end is connected to the right end of the first knee reinforcement part 310, and the second knee reinforcement part 330 is connected to the left end of the first knee reinforcement part 310. One end of the reinforcement unit 340 may be connected to the left end of the second knee reinforcement unit 320, and the other end may be connected to the right end of the second knee reinforcement unit 320.

The present invention provides a leg body (100) in which the first leg portion (10) and the second leg portion (20) are integrally woven; A band 200 integrally woven on the top of the leg body 100; It includes a pressure member 300 heat-sealed to the inner surface of the leg body 100, wherein the leg body 100 is made of a first fabric, and the band 200 is made of a second fabric, The leg body 100 further includes a pelvic portion 30 where the first leg portion 10 and the second leg portion 20 are connected at the bottom and surrounds the user's abdomen, and the band 200 is an outer band 210 exposed to the outside; an inner band 220 disposed inside the outer band 210; an insertion space 205 formed between the outer band 210 and the inner band 220; A string 40 disposed in the insertion space 205 and exposed to the front through the outer band 210; It includes an adhesive band 230 disposed on the upper inner surface 32 of the pelvis portion 30, the elasticity of the second fabric is greater than the elasticity of the first fabric, and the adhesive band 230 The lower end 221 of the inner band 220 and the inner surface 32 of the upper end 31 of the pelvic part 30 are fixed by heat fusion, and the adhesive band 230 is made of at least 20% by weight of ultrafine polyester fiber. Includes seamless leggings.

First, the present invention has the advantage of improving comfort when worn because it minimizes seams.

Second, the present invention has the advantage of actively suppressing the occurrence of contact dermatitis or contact allergy caused by protruding sewing threads when worn by eliminating the seam line.

Third, the present invention has the advantage of improving blood flow by pressurizing the user's muscles when worn through a compression member that is heat-sealed to the inner side.

Fourth, the present invention has the advantage of being able to more effectively compress the calf and thigh during activity through the calf reinforcement and thigh reinforcement parts formed in a spiral shape.

Fifth, the present invention can maximize the exercise effect by adding a dense knitting design pattern to the fabric disposed between the compression members, and through this, a diet effect can be expected.

Sixth, in the present invention, the fabric forming the first leg portion, the second leg portion, and the leg body is subjected to processing such as heat absorption, heat generation, or wicking, and through this, dieting effects and increased exercise efficiency can be expected.

Figure 1 is a front view of seamless leggings according to a first embodiment of the present invention.
Figure 2 is a rear view of Figure 1.
Figure 3 is a partially enlarged cross-sectional view of Figure 1.
Figure 4 is a partially enlarged view of Figure 3.
Figure 5 is a front view of the seamless leggings according to the second embodiment of the present invention in an inverted state.
Figure 6 is a rear view of Figure 5.
Figure 7 is a front view of the seamless leggings according to the third embodiment of the present invention in a flipped state.
Figure 8 is a rear view of Figure 7.

Since the present invention can make various changes and have various embodiments, specific embodiments will be illustrated in the drawings and described in detail in the detailed description. However, this is not intended to limit the present invention to specific embodiments, and should be understood to include all changes, equivalents, and substitutes included in the spirit and technical scope of the present invention. While describing each drawing, similar reference numerals are used for similar components.

Terms such as first, second, A, B, etc. may be used to describe various components, but the components should not be limited by the terms. The above terms are used only for the purpose of distinguishing one component from another. For example, a first component may be named a second component, and similarly, the second component may also be named a first component without departing from the scope of the present invention. The term “and/or” includes any of a plurality of related stated items or a combination of a plurality of related stated items.

When a component is said to be "connected" or "connected" to another component, it is understood that it may be directly connected to or connected to the other component, but that other components may exist in between. It should be. On the other hand, when it is mentioned that a component is “directly connected” or “directly connected” to another component, it should be understood that there are no other components in between.

The terms used in this application are only used to describe specific embodiments and are not intended to limit the invention. Singular expressions include plural expressions unless the context clearly dictates otherwise. In this application, terms such as “comprise” or “have” are intended to designate the presence of features, numbers, steps, operations, components, parts, or combinations thereof described in the specification, but are not intended to indicate the presence of one or more other features. It should be understood that this does not exclude in advance the possibility of the existence or addition of elements, numbers, steps, operations, components, parts, or combinations thereof.

Unless otherwise defined, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by a person of ordinary skill in the technical field to which the present invention pertains. Terms defined in commonly used dictionaries should be interpreted as having a meaning consistent with the meaning in the context of the related technology, and unless explicitly defined in the present application, should not be interpreted in an ideal or excessively formal sense. No.

Hereinafter, preferred embodiments of the present invention will be described in more detail with reference to the attached drawings. In order to facilitate overall understanding when describing the present invention, the same reference numerals are used for the same components in the drawings, and duplicate descriptions for the same components are omitted.

The ultrafine polyester fiber according to the present invention needs to contain a polyethylene terephthalate (PET) component of 98% by weight or more, that is, the content of components other than PET must be less than 2% by weight. Here, components other than PET are components introduced into the molecular chain through copolymerization, etc., or components attached to the surface of polyester fibers such as copolymerized PET, polyamide, polystyrene and its copolymers, polyethylene, and polyvinyl alcohol when manufacturing island-type ultrafine PET fibers. It refers to sea component polymers used in and decomposition products of the sea component polymers.

In addition, in the present invention, components other than PET include monomers and oligomers derived from PET such as ethylene glycol, terephthalic acid (TPA), monohydroxyethylene terephthalate (MHET), and bis-2-hydroxyethyl terephthalate (BHET). does not include

The content of components other than PET in the ultrafine polyester fiber is preferably less than 1% by weight, more preferably less than 0.5% by weight, and most preferably not contained.

The reduced viscosity of the ultrafine polyester fiber of the present invention is required to be 0.80 dl/g or more. If the reduced viscosity of the ultrafine polyester fiber is less than 0.80 dl/g, the tensile strength of the ultrafine polyester fiber is less than 3.5 cN/dtex.

From the viewpoint of strength development of the ultrafine polyester fibers, the reduced viscosity of the ultrafine polyester fibers is preferably 0.82 dl/g or more, and more preferably 0.85 dl/g or more. On the other hand, although there is no particular stipulation on the upper limit of the reduced viscosity of the ultrafine polyester fiber of the present invention, the reduced viscosity of the polyester fiber obtained by melt extrusion is realistically 1.50 dl/g, and from the viewpoint of suppressing the fineness variation between single yarns, Preferably it is 1.30 dl/g or less, more preferably 1.20 dl/g or less.

The total fineness of the ultrafine polyester fiber of the present invention needs to be 7 dtex or more and 120 dtex or less.

Total fineness is the product of the fineness per single filament and the total number of filaments.

If the total fineness of the ultrafine polyester fiber is less than 7 dtex, the thickness of the hollow cylindrical fabric becomes thin, and process passability is poor, such as frequent occurrence of fluff or thread breakage during forming processing, including weaving, and rupture of the fabric. It also leads to a decrease in strength.

In addition, if the total fineness of the ultrafine polyester fiber exceeds 120 dtex, even if the single yarn fineness is 0.5 dtex or less, the thickness of the fabric exceeds 90 ㎛. For example, when a cylindrical fabric with an inner diameter of 50 mm is used, the thickness of the fabric is 6 mm in diameter. Can't pass through the hole. From the viewpoint of achieving both thinning of the fabric and bursting strength, the total fineness of the ultrafine polyester fibers is preferably 10 dtex or more and 110 dtex or less, and more preferably 15 dtex or more and 100 dtex or less.

On the other hand, the single yarn fineness of the ultrafine polyester fiber of the present invention is 0.5 dtex or less. Here, the single yarn fineness refers to the fineness per single yarn filament.

If the single yarn fineness exceeds 0.5 dtex, it is difficult to thin the fabric to 90 ㎛ or less even if the total fineness is 120 dtex or less.

There is no particular limitation on the lower limit of single yarn fineness, but from the viewpoint of post-processing process such as woven knitting and development of bursting strength of the fabric, 0.01 dtex or more is preferable, and more preferably 0.03 dtex or more.

The ultrafine polyester fiber of the present invention has the following formula (1):

The toughness parameter

The ultrafine polyester fiber of the present invention has the above-mentioned toughness parameter If the toughness parameter It may be difficult to do so, or the rupture strength of the fabric may not be greater than 100 N.

The toughness parameter

In addition, the ultrafine polyester fiber of the present invention must have a toughness parameter X of 2.0 or more, a tensile strength of 3.5 cN/dtex or more, and a tensile elongation of 12% or more. If the tensile strength of ultrafine polyester fibers is less than 3.5 cN/dtex, the fabric cannot achieve the desired bursting strength of 100 N or more.

In addition, it cannot withstand the tension generated during woven knitting, causing fluff or thread breakage, and the production efficiency of the fabric is significantly reduced.

On the other hand, it is possible to increase the tensile strength of polyester fibers by increasing the draw ratio, but for example, even if the tensile strength is increased to 3.5 cN/dtex or more by stretching, if the tensile elongation is less than 12%, fluff or Thread breaks occur frequently, and fabric production efficiency is significantly reduced. From the viewpoint of stable direct processing of fabrics, the tensile strength of the ultrafine polyester fiber of the present invention is preferably 3.8 cN/dtex or more, and more preferably 4.0 cN/dtex or more.

From the same viewpoint, the tensile elongation of the ultrafine polyester fiber of the present invention is preferably 15% or more, and more preferably 20% or more.

From the viewpoint of achieving both fineness and high toughness, the ultrafine polyester fiber of the present invention preferably has a total deviation Y (1 to 10) between single yarns expressed by the following formula (2) of 0.5 or less.

In equation (2), 10 points of 1 cm of fiber bundle are sampled at equal intervals along the yarn length direction of 3 m (Y1 to Y10). From the 10 collected fiber bundles, n filaments equivalent to 30% or more of the total number of filaments are extracted, and the yarn diameter di is measured for each. Also, the average of n filaments is taken as dav. For 10 fiber bundles, the yarn diameter is measured in the above manner, and the deviation between single yarns Y (1 to 10) is calculated.

The fact that the fiber bundle sample Y taken from a specific point is 0.5 or less indicates that the yarn diameter variation between single yarns is small and the yarn diameter is uniform.

In addition, the fact that the deviation Y1 to Y10 between single yarns for all 10 fiber bundle samples is 0.5 or less indicates that the fiber has a small yarn diameter deviation in the fiber axis direction and excellent uniformity.

When the deviation Y (1 to 10) between single yarns of ultrafine polyester fiber is 0.5 or less, the occurrence of fluff or thread breakage during knitting is significantly reduced, and the production efficiency of the fabric is significantly improved. .

From the viewpoint of coexistence of fineness and high toughness, improvement of knitting processing process, and improvement of cell compatibility, the deviation Y (1 to 10) between single yarns of ultrafine polyester fiber is more preferably 0.4 or less, and the most Preferably it is 0.3 or less.

In addition, the ultrafine polyester fiber of the present invention preferably has U%, which is an indicator of unevenness in fineness in the direction of the fiber axis, of 2% or less. If the U% of ultrafine polyester fiber exceeds 2%, the variation in tensile strength increases and causes thread breakage and fluff during knitting processing. A more preferable U% range is 1.8% or less, and most preferably 1.5% or less.

The ultrafine polyester fiber of the present invention preferably has a micro crimp bending point of 5 pieces/cm or more.

The micro crimp bend point refers to a non-straight point of an ultrafine polyester fiber that has a bent, wave-shaped, arc-shaped, coil-shaped, twisted, flipped, zigzag-shaped, mountain-shaped, valley-shaped, or swirl-shaped shape.

For example, when the crimp is a coil type, the point turned 180° from an arbitrary starting point is set as bending point 1, and the bending point is counted for each subsequent 180° turn.

In addition, as will be described later in the section of the fabric, the ultrafine polyester fibers have a micro crimp bending point of 5 or more/cm, so even if a gap appears in the fabric once the needle passes through it, the bulky processed fiber closes the gap. , the water permeability after needle prick is suppressed.

In addition, the more micro-crimp bending points of ultra-fine polyester fibers, the better. For example, if they exceed 50/cm, the fiber bundles become bulky, which causes fluff and thread breakage during knitting processing.

The micro crimp bending point of the ultrafine polyester fiber is more preferably 7/cm or more and 40/cm or less, and even more preferably 10/cm or more and 30/cm or less.

The ultrafine polyester fiber of the present invention has high toughness and small fiber diameter variation.

The thin and strong ultrafine polyester fiber of the present invention contains 20% by weight or more of ultrafine polyester fibers having a total fineness of 7 dtex or more and 120 dtex or less and a single yarn fineness of 0.5 dtex or less, and further, the following (a) to (d):

(a) The thickness of the cylindrical seamless fabric is 10 ㎛ or more and 90 ㎛ or less,

(b) the outer diameter of the cylindrical seamless fabric is 6 mm or more and 50 mm or less,

(c) Water permeability before and after needle prick is 300 cc/㎠/min.

(d) bursting strength of 100 N or more

It is necessary to have a barrel-shaped seamless fabric that satisfies the following.

The cylindrical seamless fabric of the present invention must be composed of ultrafine polyester fibers with a total fineness of 7 dtex or more and 120 dtex or less and a single yarn fineness of 0.5 dtex or less.

If the composition of ultrafine polyester fibers in the fabric is less than 20% by weight, the thickness of the fabric exceeds 90 μm, making it difficult to achieve fine diameter.

The composition ratio of ultrafine polyester fibers is preferably 30% by weight or more, more preferably 40% by weight or more. Here, materials other than the ultrafine polyester fibers constituting the cylindrical seamless fabric include polyester fibers, polyamide fibers, polyethylene fibers, polypropylene fibers, etc. outside the scope specified in the present invention.

These may be monofilament or multifilament, and can be used in combination with one or two or more types of fiber materials depending on the purpose. In the form of combination, the polyester fiber of the present invention and other fibers are twisted together to form a composite fiber. Other fibers can be used as the warp or weft of the fabric, or partially as part of it.

The warp density and weft density of the cylindrical seamless fabric of the present invention are preferably 100 pieces/inch or more, and more preferably 120 pieces/inch or more. The upper limit is not particularly limited, but is substantially 350 pieces/inch or less.

The thickness of the seamless fabric of the present invention is 10 μm or more and 90 μm or less, preferably 15 μm or more and 80 μm or less, and more preferably 20 μm or more and 70 μm or less from the viewpoint of fine diameter.

Here, the thickness of the fabric is the value measured using a thickness gauge at 10 randomly selected locations within the circumferential direction (random depending on the diameter) and longitudinal direction (10 cm to 30 cm) of the tubular fabric. It is defined as the average value of . If the thickness of the fabric exceeds 90 μm, for example, a cylindrical fabric with an inner diameter of 50 mm cannot pass through a hole with a diameter of 6 mm.

On the other hand, if the thickness of the fabric is thinner than 10 ㎛, sufficient bursting strength cannot be maintained. Additionally, in measuring the thickness of the seamless fabric, the following equation (3):

Z(%)=(Zav-Zi)/Zav×100···Equation (3)

{In the formula, Zav is the average value of the 10-point measurements, Zi is the measurement value of each point, and i is an integer from 1 to 10.} The thickness deviation Z at each measurement point is all within ±15%. It is desirable.

If the thickness deviation is greater than -15%, there are cases where it cannot pass through a hole with a diameter of 6 mm even if the average thickness of the fabric is 90 ㎛ or less. In addition, the part where the thickness deviation exceeds 15% is thin, and the bursting strength and water permeability prevention performance are impaired.

The thickness deviation Z is more preferably within ±12%, and most preferably within ±10%.

The cylindrical seamless fabric of the present invention has a water permeability of 300 cc/cm2/min or less before and after needle pricking.

The cylindrical seamless fabric of the present invention needs to have a water permeability of 300 cc/cm2/min or less after piercing with a needle. Here, the water permeability after needle prick is a value measured after arbitrarily passing the needle 10 times per 1 cm 2 using a tapered 3/8 needle.

Since the cylindrical seamless fabric of the present invention uses ultrafine polyester fibers, the single filaments are spread out flat in the woven structure, the gap between the warp and weft threads is filled, and the water permeability before needle piercing is suppressed to low.

In addition, with regard to water permeability after needle puncture, fabrics woven at high density with PET fibers of normal thickness with a single yarn diameter of several tens of ㎛ or more for the purpose of suppressing water permeability or strongly calender pressed fabrics are used because the fibers constituting the fabric are strongly restrained. (Because the motility of the fiber alone is suppressed), it is difficult for the fiber to return to its original position after moving when the needle exits, and the needle hole remains open after the needle is pierced.

On the other hand, since the cylindrical seamless fabric of the present invention uses ultrafine polyester fibers composed of many ultrafine filaments, needle holes are less likely to remain, and the water permeability after needle piercing can be suppressed to 300 cc/cm2/min or less. there is.

In addition, by giving the ultrafine polyester fibers constituting the cylindrical seamless fabric of the present invention a specific micro crimp bend point as described above, even if it is a fabric with a straight density that normally suppresses the movement of the fibers, the intertwining point of the warp and weft threads There is a degree of freedom in the mobility of the fibers, and even if the fibers are forcibly opened when the needle is pulled out, they easily return to their original structure, so the effect of suppressing the water permeability after needle piercing becomes significant. From the viewpoint of practical performance, the water permeability of the cylindrical seamless fabric of the present invention before and after needle pricking is preferably 250 cc/cm2/min or less, more preferably 200 cc/cm2/min.

The porosity of the cylindrical seamless fabric of the present invention is preferably 30% or more and 95% or less. On the other hand, if the porosity of the fabric exceeds 95%, the fabric collapses and causes an increase in water permeability.

The porosity of the cylindrical seamless fabric of the present invention is more preferably 35% or more and 90% or less, and more preferably 40% or more and 85% or less.

The cylindrical seamless fabric of the present invention needs to have a bursting strength of 100 N or more, preferably 120 N to 140 N, as measured according to the bursting strength test according to the ANSI/AAMI/ISO7198:1998/2001 standard. There is no particular limit to the upper limit of the bursting strength of the fabric, but in practice it is 500 N or less.

The cylindrical seamless fabric of the present invention may be coated with silicone or the like as long as it does not deviate from the requirements such as thickness and outer diameter specified in the present invention.

Hereinafter, the method for producing the ultrafine polyester fiber and cylindrical seamless fabric of the present invention will be described, but the present invention is not limited to these methods.

In the present invention, it is preferable to employ a so-called direct melt spinning method in which a polymer consisting substantially only of polyethylene terephthalate (PET) is melt-spun and then drawn to produce ultrafine polyester fibers.

As the melt spinner, a known spinner equipped with a dryer, an extruder, and a spinning head can be used. The molten PET is discharged from a plurality of discharge nozzles of the spinneret mounted on the spinning head, and immediately after discharge, cooling wind is sprayed by a cooling facility installed below the surface of the spinneret to cool and solidify, and is spun as multifilament.

In the production of the ultrafine polyester fiber of the present invention, it is preferable to use PET polymer with a reduced viscosity of 0.85 dl/g or more from the viewpoint of developing fiber strength and realizing high toughness. However, from the viewpoint of spinning stability, reduction of the raw PET polymer is necessary. The upper limit of viscosity is 1.60 dl/g. From the viewpoint of physical properties and spinning stability of ultrafine PET fibers, the reduced viscosity of the raw material PET polymer is more preferably 0.87 dl/g or more and 1.50 dl/g or less, and more preferably 0.90 dl/g or more and 1.40 or less.

The raw PET polymer used in the present invention is preferably manufactured using a polymerization catalyst other than antimony, which is a heavy metal, from the viewpoint of biological safety.

Preferred polymerization catalysts include those containing titanium as a main component, such as amorphous titanium oxide and organic titanium, and germanium, which is used in the polymerization of PET for food packaging films such as PET bottles. In addition, the raw PET polymer used in the present invention preferably has a lower content of crystalline titanium oxide used as a matting agent. Specifically, the amount of titanium element is preferably 3000 ppm or less, more preferably 2000 ppm or less, and even more preferably 1000 ppm or less relative to the polymer weight.

In the method for producing ultrafine polyester fibers of the present invention, the spinneret surface temperature during spinning is controlled in the range of 290°C or more and 320°C or less, and when the discharge nozzles are multiple arrays, the spinneret surface temperature distribution ( It is desirable that the temperature distribution (between the outermost and innermost arrays) is within 10°C.

By controlling the spinneret surface temperature to a range of 290°C or more and 320°C or less, a decrease in the molecular weight of PET polymer with a relatively high degree of polymerization due to thermal decomposition can be suppressed, and at the same time, the fineness in the direction of the fiber axis can be discharged without uniformity. When the spinneret surface temperature is lower than 290°C, the pressure of the spinneret pack increases, causing melt fractures in the discharged yarn strands, increasing the variation between single yarns, or making it impossible to achieve the desired strength.

If the spinneret surface temperature exceeds 320°C, the desired strength cannot be achieved due to a decrease in molecular weight due to thermal decomposition within the spinneret pack, or spinning may become impossible due to spinneret contamination. On the other hand, by controlling the spinneret surface temperature distribution to within 10°C, the melt viscosity variation of the discharged polymer can be suppressed and the single yarn diameter unevenness between single yarns (single yarn variation) can be reduced. From the viewpoint of suppressing the variation in fiber diameter between single yarns and unevenness in fineness in the direction of the fiber axis, and developing strength, it is more preferable to control the spinneret surface temperature to 295°C or more and 310°C or less, and the spinneret surface temperature distribution to within 5°C.

There is no particular limitation on the means of controlling the spinneret surface temperature and the temperature distribution between the nozzles within the above range, but examples include a method of controlling the temperature by surrounding the lower part of the spinneret with heaters or a method of controlling heating around the protruding spinneret with heaters. You can.

In either method, preventing heat from the heater from being transferred to the spinning head suppresses a decrease in the degree of polymerization due to thermal decomposition of the polymer in the spinning head, and increases the strength, toughness, and spinning stability of the ultrafine polyester fiber. It is important from the point of view.

For example, it is possible to block heat transfer from the heater by placing a heat shield between them instead of attaching the heater directly to the spinning head. This method uses protruding radiation even when controlling the temperature by surrounding the lower part of the spinneret with heaters and heating it. It is also effective when heating around the sphere.

Additionally, in the case of heating the protruding spinneret, heating only the protruding spinneret portion by induction heating is also effective in preventing heat transfer to the spinning head.

In the present invention, it is preferable that the number of discharge nozzles per spinneret is 20 to 1,500 holes. The arrangement of the discharge nozzles is not particularly limited, such as a cylindrical arrangement or an orthogonal arrangement, but in the case of a cylindrical arrangement, it is preferable to use multiple cylindrical arrangements for the purpose of increasing the number of nozzles.

In addition, in the present invention as described above, the discharged yarn strands are cooled and solidified by spraying cooling wind by a cooling facility installed below the spinneret surface. However, in the case of multiple cylindrical arrays, depending on the number of single yarns or the number of arrays, Due to the influence of the accompanying flow, it becomes difficult for the injected cooling wind to reach the innermost array, causing uneven cooling of the discharged yarn strands in the outermost and innermost arrays, and as a result, there are cases where the variation in fiber diameter between single yarns (variation between single yarns) increases.

In that case, a nozzle-free area is formed from the outermost array of spinnerets to the innermost array, making it easier for cooling wind to reach the innermost array. In other words, it is a desirable aspect to uniformly cool and solidify the discharged yarn strands from the outermost arrangement to the innermost arrangement by forming a flow path for cooling wind, thereby reducing the variation between single yarns.

The number of arrays in the multiple columnar array, the distance between arrays, the distance between discharge nozzles on the columnar array, and the design of the cooling wind flow path may be designed arbitrarily within the range of the desired number of yarns, single yarn fineness, and allowable spinneret size, but each column The distance between the arrays is preferably 1 mm or more and 12 mm or less from the viewpoint of preventing fusion of single yarns and not excessively increasing the spinneret size, and the distance between discharge nozzles on the circumference prevents uneven cooling and prevents fusion of single yarns and prevents adhesion. From the perspective of dune size design, it is preferable to be 1.2 mm or more and 5 mm or less.

The hole diameter of the discharge nozzle is preferably 0.15 mmϕ or less and 0.05 mmϕ or more. In the method for producing ultrafine polyester fibers of the present invention, it is important from the viewpoint of high toughness to form a hot zone in which the ambient temperature is controlled to 150 ° C. or higher below the spinneret surface and pass the discharge yarn strands. In this case, the hot zone range is preferably 1 mm or more and within 60 mm from the spinneret surface.

Here, the ambient temperature is the temperature of a point moved vertically downward at 1 mm intervals from the center of the spinneret surface.

Therefore, hot zones smaller than 1 mm cannot be measured. If the hot zone exceeds 60 mm, thread flow occurs and winding the fiber becomes difficult.

Even if the fiber can be wound, the resulting ultrafine polyester fiber has poor variation between single yarns and unevenness in fineness (U%) in the direction of the fiber axis.

Additionally, if the ambient temperature at a point of 1 mm from the spinneret surface is not controlled to 150°C or higher, yarn bending occurs and spinning cannot be performed, or even if spinning is possible, fibers of the desired strength cannot be obtained.

Hot zone conditions can be adjusted by the thickness or temperature of the heater attached to the spinneret head, the elevation angle or temperature of the cold air outlet, and the thickness of the insulation plate.

The hot zone is more preferably within 50 mm, more preferably within 40 mm from the spinneret surface.

In order to create a hot zone environment, it is possible to use the above-mentioned heaters as a method of controlling the surface temperature of the spinneret, and if it is possible to prevent the blowing of cooling wind, it can also be adjusted by installing a heat shield with a thickness of 60 mm or less on the spinning head. .

In addition, from the viewpoint of spinning stability and suppressing variation between single yarns and non-uniformity in fineness in the direction of the fiber axis, it is preferable that the discharged yarn strands, after passing through the hot zone, be rapidly cooled and solidified by the cooling method described below, and in the atmosphere at the uppermost position of the cooling wind blowing surface. It is more preferable that the temperature (point 1 cm away from the yarn strand discharged from the outermost arrangement of the spinneret) is 120°C or lower, and most preferably 100°C or lower.

From the viewpoint of improving spinning stability and suppressing the variation between single yarns of ultrafine polyester fibers, it is important to install the cooling wind blowing device so as to surround the discharged yarn strands and to reduce the cooling wind speed deviation Z from the cooling wind blowing surface. do.

That is, the cooling wind speed is measured at a 15° pitch along a 360° circumference from a specific position on the cooling wind blowing surface, and the cooling wind speed at a total of 24 points is calculated using the following formula (3):

{In the formula, Xi is each data of cooling wind speed, It is important.

If the speed deviation Z of the cooling wind exceeds 0.15, yarn flow may occur and it may be difficult to wind the fiber.

In addition, even if it can be wound, the obtained ultrafine polyester fiber has a large yarn diameter deviation between single yarns, and the inter-yarn deviation Y, which is an indicator of the yarn diameter deviation between single yarns, never falls below 0.5.

From the viewpoint of suppressing the variation between single yarns of ultrafine polyester fibers, the speed variation Z of the cooling wind expressed in equation (3) is more preferably 0.13 or less, and even more preferably 0.10 or less.

Additionally, the speed of the cooling wind is preferably between 0.6 m/s and 2.0 m/s from the viewpoint of uniform cooling from the outermost array to the innermost array.

Here, the cooling wind speed is the average value of the cooling wind speeds of a total of 24 points measured in the evaluation of the cooling wind speed deviation Z.

If the speed of the cooling wind is less than 0.6 m/s, it becomes difficult for the injected cooling wind to reach the innermost array due to the effect of the accompanying flow, causing uneven cooling of the discharged yarn strands in the outermost array and the innermost array, resulting in yarn diameter deviation between single yarns. (Difference between single yarns) increases.

On the other hand, if the cooling wind speed exceeds 2.0 m/s, it causes yarn shaking of the discharged yarn strands in the outermost arrangement, causing yarn breakage, deviation between single yarns, and uneven fineness in the direction of the fiber axis. The cooling wind speed is more preferably 0.7 m/s or more and 1.8 m/s or less, and most preferably 0.8 m/s or more and 1.5 m/s or less.

The temperature of the cooling wind is preferably controlled in the range of -30°C or higher and 18°C or lower from the viewpoint of rapid solidification of the discharged yarn strands and cooling uniformity, more preferably -15°C or higher and 16°C or lower, most preferably - It is above 10℃ and below 15℃.

In the method for producing ultrafine polyester fibers of the present invention, focusing the discharged yarn strands at a position of 5 cm or more and 50 cm or less directly below the spinneret is from the viewpoint of suppressing the shaking of the yarn strands and improving spinning stability. It is preferable, more preferably 10 cm or more and 40 cm or less, and even more preferably 15 cm or more and 30 cm or less.

In the method for producing ultrafine polyester fibers of the present invention, after focusing, a finishing agent is applied to the fiber bundle, and spinning is performed at a speed of 300 m/min or more and 3000 m/min or less from the viewpoint of spinning efficiency and high toughness. Preferred, more preferably 700 m/min or more and 2800 m/min or less, even more preferably 1000 m/min or more and 2500 m/min or less.

In addition, the oil imparting ratio of the finishing agent is preferably 1% by weight or more and 3% by weight or less, more preferably 1.2% by weight or more and 2.8% by weight or less, and even more preferably, from the viewpoint of passability through bulk processing or knitting processing. It is 1.5% by weight or more and 2.5% by weight or less.

In the method for producing an ultrafine polyester fiber of the present invention, the undrawn yarn obtained by spinning at the above-mentioned speed may not be wound once, but may be continuously stretched to wind the drawn yarn. Alternatively, after the undrawn yarn is once wound, the drawn yarn may be wound. The stretched yarn may be wound by stretching on a separate line, such as a rolling machine or a horizontal stretching machine. In either case, it is preferable to stretch at a stretching temperature of 50 to 120°C so that the tensile elongation is 12% or more, followed by heat treatment at 80 to 180°C and winding.

In the method for producing ultrafine polyester fibers of the present invention, it is preferable to provide entanglement treatment at the undrawn yarn stage or the drawn yarn stage from the viewpoint of reducing fluff and yarn breakage during bulk processing or knitting processing, and the entanglement treatment is , a known entangled nozzle is employed, and the number of entangled nozzles is preferably in the range of 1 to 50 pieces/m.

As described above, the ultrafine polyester fiber of the present invention preferably imparts bulkiness between single yarns and promotes cell invasion into the voids between single yarns, and in that case, waterjet or false twist processing is a preferred method.

For example, in case of false twisting treatment, in order to provide a micro crimp bending point of 7/cm or more to the ultrafine polyester fiber, it is preferable to apply a twist of 2500 or more and 5000 or less turns per 1 m, and less than 2500 turns is a predetermined amount of twist. Micro crimp cannot be applied, and fluff or thread breakage occurs if the number of revolutions exceeds 5000. More preferable combustion treatment conditions are 3000 rotations or more and 4000 rotations or less.

A cylindrical seamless fabric is manufactured using the ultrafine polyester fibers obtained by the above method. The loom for producing a cylindrical seamless fabric is not particularly limited, but using a shuttle loom that passes the weft thread through the reciprocating motion of a drum (shuttle) reduces the weave density of the edge of the fabric (folded portion of the cylindrical fabric). It is desirable to suppress and equalize the thickness of the fabric.

When preparing thick and wide bag-shaped fabrics using fibers with relatively large single yarn fineness and total fineness, such as airbags, it is possible to use shuttleless looms such as air jet loom, water jet loom, and rapier loom. When preparing a thin, high-density uniform fabric like the present invention with these shuttleless looms, the weave density of the edges of the fabric decreases significantly, causing a partial increase in water permeability, leading to fatal defects such as leakage of liquid. .

In addition, when preparing the cylindrical seamless fabric of the present invention, it is preferable to use a front temple for the purpose of stabilizing the fabric before weaving, uniformizing the thickness and diameter of the fabric, and suppressing thread breakage during processing.

Since the cylindrical seamless fabric of the present invention uses ultrafine polyester fibers and is very thin, when using the front temple, for the purpose of suppressing abrasion of the fabric by the front temple, the fabric and the front surface are It is desirable to design a structure that reduces the contact area of the temple as much as possible, and to select a material with a low coefficient of friction for the front temple member in contact with the fabric.

Regarding the structure of the front temple and the friction coefficient of the members used, they can be appropriately designed and selected depending on the single yarn fineness or total fineness of the ultrafine polyester fibers used and the weft density of the warp or weft yarns.

Next, when preparing a cylindrical seamless fabric, it is necessary to control the raising and lowering of the warp threads, and as a device for this, a jacquard type opening device, a dobby type opening device, etc. can be used.

After weaving, it is desirable to perform scouring treatment for the purpose of removing oil agents, etc., and heat setting for the purpose of shape stability.

Additionally, calendering may be performed on the cylindrical seamless fabric for the purpose of further thinning the fabric, but in this case, press processing such as crushing the cylindrical seamless fabric should not be performed.

When performing calendering, a cylindrical rod designed to match the diameter of the cylindrical seamless fabric is passed through the cylindrical seamless fabric, the cylindrical rod is set in a press machine, and the entire cylindrical seamless fabric is pressed while rotating the cylindrical rod. It is preferable to do so, and the heat setting and calendar processing may be performed simultaneously in this manner.

In addition, regarding the selection of heat set temperature or calendar processing conditions (temperature, pressure, etc.), the water permeability after needle prick of the treated cylindrical seamless fabric, that is, the water permeability after needle prick, does not exceed 300 cc/cm2/min. It is desirable to set conditions. For example, when the fabric is treated with strong press pressure, such as crushing it into a film, the water permeability increases.

Hereinafter, the present invention will be described in detail, but the present invention is not limited to these examples. In addition, the main measurements of physical properties were measured by the following method.

(1) Reduced viscosity (ηsp/c)

Reduced viscosity (ηsp/c) is measured as follows.

1) Adjust the dilution solution by dissolving 0.35 g of polyethylene terephthalate (PET) sample in 0.25 deciliter of 1,1,1,3,3,3-hexafluoro-2-propanol (HFIP) at room temperature.

2) Using an Ubbelohde viscosity tube (tube diameter: 0.03), measure the number of seconds for the diluted solution and HFIP solvent to fall at 25°C to obtain the specific viscosity (ηsp).

3) Divide the specific viscosity (ηsp) by the polymer concentration C (g/dl) to calculate the reduced viscosity ηsp/c.

(2) Content ratio of ingredients other than PET, P

(a) Content rate P1 of components remaining attached to the fiber surface

In the case of fiber, it is cut to 1 cm in length, and in the case of fabric, it is cut to 1 cm in width and height and unwrapped into fibers.

After scouring with hot water at 95°C for 30 minutes to remove the spinning oil, it is dried at 105°C for 3 hours and the weight (W0) is measured. The fibrous material was treated with a 3% sodium hydroxide aqueous solution at a bath ratio of 100 for 80°C Calculate the content of components remaining attached to the fiber surface.

P1 (weight%)=(W0-W1)/W0×100

(b) Content ratio of components remaining attached to the surface and/or components copolymerized with PET even after the treatment in (a) above. P2 The fibrous material treated in (a) is d-1,1,1,3,3,3. - It was dissolved in 1 to 2 vol% in hexafluoro-2-propanol (room temperature) and measured using H-NMR (AVANCEII AV400M, manufactured by Bruker Biospin).

The presence or absence of signals other than PET components is confirmed from the NMR chart, and when signals other than PET components are confirmed, the identification and content rate (P2) of the fiber surface adhesion component and/or copolymerization component are calculated from the NMR chart.

The above (a) and (b) are added to obtain the content ratio P of components other than PET.

(3) Total fineness and single yarn fineness

Total fineness (dtex) is a value obtained by winding a fiber bundle 50 times on a spool of 1 m per turn, measuring the weight of the yarn, and multiplying it by 200. The single yarn fineness (dtex) is the total fineness obtained by the above method divided by the single yarn number.

(4) Tensile strength/tensile elongation/toughness parameters

Tensile strength and tensile elongation were measured according to JIS-L-1013.

The toughness parameter

(5) Variation between single yarns Y (1∼10)

Ten fiber bundles of 1 cm were sampled at equal intervals of 3 m in the direction of the fiber axis, each fiber bundle was further divided into 3 to 10 pieces, spread thinly on the sample stage of a scanning electron microscope (SEM), and observed by SEM for 500 minutes. It is performed at a magnification equivalent to 2 to 5,000 times.

Regarding the obtained SEM image, a line is drawn in the direction perpendicular to the direction of the fiber bundle, and the diameter of the single yarn (fiber diameter) intersecting the line is measured from the enlarged image, so that the number of single yarns is equivalent to 30% or more of the total fiber number. Run.

From the total measurement results, the deviation Y between single yarns is calculated using the following equation. This operation is repeated for 10 points of the collected fiber bundles, and the value Y (1 to 10) of these 10 points is set as the inter-single yarn variation Y (1 to 10).

In the sample preparation and observation for SEM observation, the number of divisions and observation magnification of each fiber bundle are arbitrarily selected depending on the total number of fibers and single yarn fineness, but the selection criterion is 20 to 30 fibers per image.

(6) Fineness unevenness in the fiber axis direction (U%)

The fineness unevenness (U%) of the fiber bundle in the direction of the fiber axis is measured using the Evenness Tester Model KET-80C manufactured by Keiso Cookie Industry Co., Ltd. under the following measurement conditions.

(Measuring conditions)

rreg : U%

Service selector: Normal

Range of scale: ±12.5%

Mat.speed: 50 m/min

Diagram speed: 10 cm/min

(7) Bursting strength of fabric

In accordance with ANSI/AAMI/ISO 7198:1998/2001, the bursting strength test of fabric was conducted at n=5, and the maximum test force at that time was averaged.

(8) Permeability of fabric before and after needle pricking

Water permeability is measured before and after needle pricking the fabric in accordance with ANSI/AAMI/ISO 7198:1998/2001. Here, the water permeability test after needle prick is a value measured after arbitrarily passing the needle 10 times per 1 cm2 using a tapered 3/8 needle. Measurements are made both before and after needle prick at n = 5, and the average value is taken.

(9) Thickness of fabric

The film thickness of the fabric was measured at n = 5 using a thickness gauge with a load of 1 N, and this is the average value.

(10) Micro crimp bend point

The micro crimp bend point is determined by leaving the fiber still in a state where no tension is applied, observing it with a 10x magnifying glass, and calculating the micro crimp number as the average of 5 points.

The bend point of the crimp refers to a non-straight point of the ultrafine fiber, such as a bend, wave shape, arc shape, coil shape, twist, flip, zigzag shape, mountain shape, valley shape, or spiral shape.

For example, if the crimp is a waveform, it refers to the inflection point of the waveform. If the crimp is a coil type, the point turned 180° from an arbitrary starting point is defined as the point of inflection, and thereafter, there is an inflection point for every 180° turn.

(11) Porosity

The fabric was embedded with a resin such as Technovit (Kulzer Co. Germany), a 3-μm-thick segment was made with a glass knife, and photographs were taken under an optical microscope at 400x magnification. The porosity is calculated using the following formula from measuring the area of the fiber portion and the fiber gap portion on the photograph. Additionally, image area measurement uses general image processing computer software, such as NIH image.

Porosity (%) = (Area occupied by ultrafine fiber bundles - Area occupied by individual ultrafine fibers) / (Area occupied by ultrafine fiber bundles) × 100

Polyethylene terephthalate (PET) was used as the raw material, and melt spinning was performed to wind undrawn yarn of 65 dtex/300F.

The properties of raw material PET polymerized with a germanium catalyst are as follows.

Reduced viscosity (ηsp/c): 1.162 dl/g

Titanium content: 2 ppm

Diethylene glycol content: 0.8% by weight

Oligomer content: 1.2% by weight

The spinneret used was a cylindrical spinneret (number of nozzles: 300) with a quintuple arrangement (60 discharge nozzles in total) perforated with 60 discharge nozzles (hole diameter 0.08 mmϕ) per wheel, and the distance between the discharge nozzles in the innermost arrangement was The distance is 1.7 mm, and the distance between the entire arrays is 8 mm.

The cooling of the yarn strands was basically done using a cooling air blowing device having a blowing port with an elevation angle of 37°.

FIG. 1 is a front view of seamless leggings according to a first embodiment of the present invention, FIG. 2 is a rear view of FIG. 1, FIG. 3 is a partially enlarged cross-sectional view of FIG. 1, and FIG. 4 is a partially enlarged view of FIG. 3.

The leggings according to this embodiment include at least some of the above-described ultrafine polyester fibers.

Leggings according to this embodiment include a leg body 100 in which the first leg portion 10 and the second leg portion 20 are integrally woven, and a band 200 that is integrally woven on the top of the leg body 100. ) includes.

The fabric constituting the leg body 100 is defined as the first fabric, and the fabric constituting the band 200 is defined as the second fabric.

The user's outer or right leg is inserted into the first leg portion 10, and the user's right or left leg is inserted into the second leg portion 20.

In this embodiment, the first leg part 10 is placed on the left, and the second leg part 20 is placed on the right.

The leg body 100 is connected to the first leg part 10 and the second leg part 20 at the bottom, and further includes a pelvic part 30 that surrounds the user's abdomen.

The pelvic portion 30 is open on the upper and lower sides, and the first leg portion 10 and the second leg portion 20 are integrally woven at the lower end of the pelvic portion 30.

After the first leg portion 10 and the second leg portion 20 are each woven into a cylindrical shape from the bottom to the top, the entire leg body 100 is woven integrally during the process of weaving the pelvis portion 30. It can be manufactured, and through this, the seam line can be omitted.

In the case of conventional seamless leggings, since a seam line is formed between the pelvic portion 30 and the first leg portion 10 and between the pelvic portion 30 and the second leg portion 20, it is easy to manufacture, but when worn, There was a problem in that the adhesion was reduced and the seam line was formed between the groin or along the buttocks.

In the leggings according to this embodiment, the upper side of the pelvic part 30 is open, and the upper end 31 of the pelvic part 30 is connected to the lower end 201 of the band 200 and is continuously woven.

When the leg body 100 and the band 200 are continuously woven as in this embodiment, a smoother line can be formed when worn.

The elasticity of the second fabric from which the band 200 is woven is greater than the elasticity of the first fabric from which the leg body 100 is woven. The band 200 is formed of two layers, inner and outer, and a string 40 made of fabric may be further disposed between them.

The band 200 includes an outer band 210 exposed to the outside and an inner band 220 disposed inside the outer band 210.

The outer band 210 and the inner band 220 are woven integrally.

The lower end of the outer band 210 is continuously woven with the upper end 31 of the pelvic portion 30.

In this embodiment, the lower end 201 of the band 200 is continuous with the upper end 31 of the pelvic part 30, and is woven from different fabrics with different elasticities.

In particular, the band 200 woven in a cylindrical shape is folded inward and disposed to be exposed on the outside is called the outer band 210, and the band disposed on the inside is called the inner band 220.

An insertion space 205 into which the string 40 is inserted is formed between the outer band 210 and the inner band 220.

The lower end of the inner band 220 may be adhesively fixed to the inner surface 32 of the outer band 210 or the inner surface 32 of the pelvis portion 30.

In this embodiment, the adhesive band 230 is placed on the lower end 221 of the inner band 220 and then fixed to the inner surface 32 of the upper end 31 of the pelvic part 30 through heat fusion.

By integrating the heat-sealed portions of the inner band 220 through heat-sealing without a margin to seam, the seam protruding to the outside can be minimized.

The location where the adhesive strip 230 is heat-sealed is also important. In this embodiment, the adhesive band 230 is fixed to the upper inner surface 32 of the pelvic part 30 rather than the lower inner surface 212 of the outer band 210, and thereby the upper inner surface of the pelvic part 30. The structural rigidity of (31) can be strengthened.

Since the elasticity of the second fabric weaving the band 200 is greater than the elasticity of the first fabric constituting the pelvic portion 30, force may be concentrated on the top of the pelvic portion 30 when leggings are worn.

Unlike this embodiment, the adhesive band 230 is disposed on the lower inner surface 212 of the outer band 210, and the lower end of the outer band 210 and the lower end of the inner band 220 are fixed by heat fusion. In this case, stress concentration may occur at the top 31 of the pelvic area and the bottom 201 of the band due to repeated wearing of leggings, which may result in tears or fibers at the continuously woven top 31 and bottom 201. Defects such as tissue loosening may occur.

In the leggings according to this embodiment, the adhesive band 230 is placed on the upper inner surface 32 of the pelvic part 30 and heat-sealed to the lower end 221 of the inner band 220, so that the upper pelvic part 31 ) and has the feature of structurally reinforcing the bottom of the band (201).

In this embodiment, the adhesive strip 230 may be made of the same material as the highly elastic second fabric or may include components of the second fabric.

The adhesive strip 230 may be attached using an adhesive used for clothing, but it is most preferable to use hot melt. Here, hot melt is a thermoplastic resin that melts when heated and solidifies when cooled.

In this embodiment, the adhesive strip 230 contains at least 20% by weight of the above-described ultrafine polyester fibers.

The adhesive band 230 may be attached in a ring shape along the inner surface of the pelvis portion 30, and the lower end of the inner band 220 may be heat-sealed after being in close contact with the ring-shaped adhesive band 230. You can.

The insertion space 205 is formed through heat fusion of the adhesive strip 230 as described above.

When viewed from the outside, the leggings according to this embodiment substantially form only the border of the pelvic portion 30 and the band 200.

By removing the seam line, the seamless leggings according to this embodiment can actively suppress the occurrence of contact dermatitis or contact allergy caused by the protruding sewing thread when worn.

Figure 5 is a front view of the seamless leggings according to the second embodiment of the present invention in a flipped state, and Figure 6 is a rear view of Figure 5.

The seamless leggings according to this embodiment further include a pressure member 300 that is heat-sealed to the inner surface of the leg body 100.

The drawing shows the leggings turned over to better display the compression member 300.

The pressing member 300 is made of a material with higher elasticity than the first fabric constituting the leg body 100.

In this embodiment, the pressing member 300 includes at least 20% by weight of the ultrafine polyester fibers described in the first embodiment. The pressing member 300 may be fixed to the first fabric through heat fusion.

Specifically, the ultrafine polyester fiber is an ultrafine polyester fiber with a polyethylene terephthalate content of 98% by weight or more, a reduced viscosity (ηsp/c) of 080 dl/g or more, and a total fineness of 7 dtex or more and 120 dtex or less. and the single yarn fineness is 05 dtex or less.

In addition, the ultrafine polyester fiber has a fabric thickness of 10 ㎛ or more and 90 ㎛ or less, a water permeability before and after needle pricking of 300 cc/cm2/min or less, and a bursting strength of 100 N or more.

Additionally, silicone may be coated on the inner surface of the compression member 300 to minimize slippage when wearing leggings.

The silicon applied to the pressing member 300 uses liquid silicon.

The liquid silicone is (a) 50-60% by weight of (Siloxanes and Silicones, di-Me, vinyl group-terminated), 40-50% by weight of Liquid silicone resin A containing silicon dioxide, 40-50% by weight (siloxane and silicone, di-methyl, vinyl group-terminated), 20-30% by weight (siloxane and silicone, die-terminated) -Methyl, methyl hydrogen) (Siloxanes and Silicones, di-Me, Me hydrogen) and liquid silicone resin B containing 30-40% by weight of silicon dioxide are mixed at a weight ratio of 1:0.5 to 2.

The liquid silicone contains 70-80% by weight (siloxane and silicone, di-methyl, vinyl group-terminated), 10-20% by weight silicon dioxide, and 1-10% by weight (siloxane and silicone, die-terminated). -Methyl, methyl vinyl, vinyl group-terminated) (Siloxanes and Silicones, di-Me, Me vinyl, vinyl group-terminated) may include a liquid type silicone resin C containing.

The liquid silicone is a liquid silicone containing 70-80% by weight (siloxane and silicone, di-methyl, vinyl group-terminated) and 20-30% by weight (siloxane and silicone, di-methyl, methyl hydrogen). Resin D may be further mixed at a weight ratio of 8 to 12:1.

The liquid silicone is 50-59% by weight (siloxane and silicone, di-methyl, vinyl group-terminated), 1-5% by weight (siloxane and silicone, dimethyl, methyl hydrogen), and 40-45% by weight. It may further include a liquid type silicone resin E containing % silicon dioxide.

The liquid silicone contains 80-90% by weight of silicon catalyst F (siloxane, silicon, di-methyl, vinyl group-terminated) and 10-20% by weight of silicon dioxide at a weight ratio of 100:0.1 to 10. It can be further mixed.

The liquid silicon may be transferred to the inner surface of the pressing member 300 at 100 to 150°C.

Through the liquid silicone, the fit and exercise effectiveness of leggings can be improved, and a body shape correction effect can be expected.

The compression member 300 includes a circular or ring-shaped first knee reinforcement portion 310 disposed at the knee portion of the first leg portion 10, and a first knee reinforcement portion 310 disposed at the knee portion of the second leg portion 20. A circular or ring-shaped second knee reinforcement unit 320, extending rearward from the left end of the first knee reinforcement unit 310, and extending through the back of the first leg unit 10 to the first knee reinforcement unit 320. A first knee reinforcement portion 330 connected to the right end of 310, and extending rearwardly from the left end of the second knee reinforcement portion 320, through the back of the second leg portion 20. It includes a second knee reinforcement part 340 connected to the right end of the second knee reinforcement part 320.

In this embodiment, the first knee reinforcement unit 310 and the second knee reinforcement unit 320 are formed in a ring shape. Since the first knee reinforcement unit 310 and the second knee reinforcement unit 320 are formed in a ring shape, when the user bends the knee, the knee is connected to the first knee reinforcement unit 310 and the second knee reinforcement unit ( 320) It is in contact with the first fabric inside, and the first knee reinforcement part 310 and the second knee reinforcement part 320 may be in close contact with the muscles around the knee bone.

Therefore, the first knee reinforcement unit 310 and the second knee reinforcement unit 320 can firmly support the muscles around the knee, and reduce pain by supporting the muscles of a user who has weak muscles around the knee, such as due to degenerative knee arthritis. can do.

Additionally, when exercising, if the muscles around the knee joint are weak, pain may be caused just by walking for a long time, but the first knee reinforcement unit 310 and the second knee reinforcement unit 320 according to this embodiment are used to strengthen the muscles around the knee joint. By supporting, it is possible to prevent the knee joint from being spaced apart.

The first hamstring reinforcement part 330 is arranged to surround the user's left knee, and the second hamstring reinforcement part 330 is arranged to surround the right knee.

One end of the first knee reinforcement part 330 is connected to the left end of the first knee reinforcement part 310, and the other end is connected to the right end of the first knee reinforcement part 310.

Therefore, when the user makes an action of bending the knee, the first knee reinforcement unit 330 can firmly support the first knee reinforcement unit 310, and the first knee reinforcement unit 310 and the first knee reinforcement unit 310 The popliteal reinforcement portion 330 is in close contact with the muscles around the left knee and can firmly support the muscles. That is, the first knee reinforcement part 310 and the first knee reinforcement part 330 can serve as a knee protector that protects the left knee.

Likewise, one end of the second knee reinforcement unit 340 is connected to the left end of the second knee reinforcement unit 320, and the other end is connected to the right end of the second knee reinforcement unit 320.

Therefore, when the user makes an action of bending the knee, the second knee reinforcement unit 340 can firmly support the second knee reinforcement unit 320, and the second knee reinforcement unit 320 and the second knee reinforcement unit 320 The popliteal reinforcement portion 340 is in close contact with the muscles around the right knee and can firmly support the muscles.

The second knee reinforcement part 320 and the second knee reinforcement part 340 may serve as a knee protector that protects the right knee.

The pressing member 300 includes a first lower reinforcement part 410 arranged in a ring shape along the lower inner surface of the first leg part 10 and a lower inner surface of the second leg part 20. A first calf reinforcement connecting the second lower reinforcement part 420 arranged in a ring shape and the first knee reinforcement part 310 or the first popliteal reinforcement part 330 in the first lower reinforcement part 410. It may further include a second calf reinforcement unit 440 connecting the unit 430 and the second lower reinforcement unit 420 to the second knee reinforcement unit 320 or the second popliteal reinforcement unit 330. .

The first lower reinforcement part 410 and the second lower reinforcement part 420 are arranged in the same shape as the adhesive strip 230.

The lower end of the first leg portion 10 can be rolled inward and heat-sealed and fixed through the first lower reinforcement portion 410.

The lower end of the second leg portion 20 can be rolled inward and heat-sealed and fixed through the second lower reinforcement portion 420.

Since the elasticity of the first lower reinforcement portion 410 is high and the elongation rate is low, it is possible to prevent the lower end of the first leg portion 10 from being rolled up toward the calf.

Since the elasticity of the second lower reinforcement portion 420 is high and the elongation rate is low, it is possible to prevent the lower end of the second leg portion 20 from being rolled up toward the calf.

The first calf reinforcement part 430 includes a 1-1 calf reinforcement part 431 connecting the first knee reinforcement part 310 and the first lower reinforcement part 410, and the first popliteal reinforcement part ( 330) and a 1-2 calf reinforcement part 432 and a 1-3 calf reinforcement part 433 connecting the first lower reinforcement part 410.

The 1-1st calf reinforcement part 431, the 1-2nd calf reinforcement part 432, and the 1-3rd calf reinforcement part 433 extend long in the vertical direction.

The 1-1 calf reinforcement portion 431 is arranged to pass through the left shin.

The 1-2 calf reinforcement portion 432 and the 1-3 calf reinforcement portion 433 are spaced apart in the left and right directions and are located on the back of the first leg portion 10 to vertically surround the user's left calf. I support it.

The 1-2 calf reinforcement part 432 and the 1-3 calf reinforcement part 433 can press the user's left calf, thereby improving blood flow.

The second calf reinforcement part 440 includes a 2-1 calf reinforcement part 441 connecting the second knee reinforcement part 320 and the second lower reinforcement part 420, and the second popliteal reinforcement part ( 340) and a 2-2 calf reinforcement part 442 and a 2-3 calf reinforcement part 443 connecting the second lower reinforcement part 420.

The 2-1st calf reinforcement part 441, the 2-2nd calf reinforcement part 442, and the 2-3rd calf reinforcement part 443 extend long in the vertical direction.

The 2-1 calf reinforcement portion 441 is arranged in the vertical direction so as to pass through the right shin.

The 2-2 calf reinforcement portion 442 and the 2-3 calf reinforcement portion 443 are spaced apart in the left and right directions and are located on the back of the second leg portion 20 to vertically surround the user's right calf. I support it.

The 2-2 calf reinforcement part 442 and the 2-3 calf reinforcement part 443 can press the user's left calf, thereby improving blood flow.

The first calf reinforcement part 430 and the second calf reinforcement part 440 can provide the same effect as compression stockings or compression tights.

The compression member 300 includes a first thigh reinforcement portion 460 connecting the adhesive band 230 to the first knee reinforcement portion 310 or the first popliteal reinforcement portion 330, and the second knee reinforcement portion. It may further include a second thigh reinforcement part 470 connecting the adhesive strip 230 to the reinforcement part 320 or the second popliteal reinforcement part 330.

Since the adhesive band 230 is covered by the inner band 220, the adhesive band 230 is in a hidden state, and the upper part of the first thigh reinforcement portion 460 and the second thigh reinforcement portion 470 ), a portion of the upper part of each is covered by the inner band 220 in order to be connected to the adhesive band 230.

Since the top of the first thigh reinforcement portion 460 and the top of the second thigh reinforcement portion 470 are each covered by the inner band 220 and heat-sealed, the first thigh reinforcement portion 460 and the second thigh It is possible to suppress the aging of the reinforcement portion 470, and through this, each leg of the user can be firmly supported.

In addition, since the top of the first thigh reinforcement portion 460 and the top of the second thigh reinforcement portion 470 are each covered by the inner band 220 and heat-sealed, the tearing is prevented even if washing or repeated stretching occurs. There are characteristics that can be suppressed.

In addition, since the adhesive strip 230 is heat-sealed to the top of the first thigh reinforcement part 460 and the top of the second thigh reinforcement part 470, respectively, the first thigh reinforcement part 460 and the same material are The force applied to the second thigh reinforcement unit 470 can be distributed to the adhesive strip 230, thereby forming a strong tension in the first thigh reinforcement unit 460 and the second thigh reinforcement unit 470. There is a feature that allows you to do this.

The first thigh reinforcement unit 460 includes a 1-1 thigh reinforcement unit 461 connecting the first knee reinforcement unit 310 and the adhesive band 230, and the first popliteal reinforcement unit 330. and a 1-2 thigh reinforcement portion 462 connecting the adhesive band 230.

The 1-1 thigh reinforcement unit 461 is arranged to extend long in the vertical direction and is arranged to pass the user's left thigh (specifically, the quadriceps femoris muscle).

The 1-2 thigh reinforcement portion 462 may be arranged in an arc shape or diagonal line. The lower end of the 1-2 thigh reinforcement part 462 is connected to the first knee reinforcement part 330, and the upper end is connected to the adhesive band 230 located on the upper side of the second leg part 20.

The 1-2 thigh reinforcement portion 462 is arranged to pass through the biceps femoris muscle of the left leg and the right gluteus maximus muscle, which are disposed at the back of the thigh. The 1-2 thigh reinforcement portion 462 can support the user's buttocks and prevent sagging.

The second thigh reinforcement unit 470 includes a 2-1 thigh reinforcement unit 471 connecting the second knee reinforcement unit 320 and the adhesive band 230, and the second popliteal reinforcement unit 340. And a 2-2 thigh reinforcement portion 472 connecting the adhesive band 230.

The 2-1 thigh reinforcement unit 471 is arranged to extend long in the vertical direction and is arranged to pass the user's right thigh (specifically, quadriceps femoris).

The 2-2 thigh reinforcement portion 472 may be arranged in an arc shape or diagonal line. The lower end of the 2-2 thigh reinforcement part 472 is connected to the second popliteal reinforcement part 340, and the upper end is connected to the adhesive band 230 located on the upper side of the first leg part 10.

The 2-2 thigh reinforcement portion 472 is arranged to pass through the biceps femoris muscle and left gluteus maximus muscle of the right leg, which are disposed at the back of the thigh. The 2-2 thigh reinforcement unit 472 can support the user's buttocks and prevent sagging.

In addition, the seamless leggings according to this embodiment can maximize the exercise effect by adding a dense knitting design pattern to the fabric disposed between the compression members, and through this, a diet effect can be expected.

In the seamless leggings according to this embodiment, the fabric forming the first leg portion, the second leg portion, and the leg body is processed such as heat absorption, heat generation, or wicking, and through this, a diet effect and increased exercise efficiency can be expected.

Hereinafter, since the remaining configuration is similar to the first embodiment, detailed description will be omitted.

Figure 7 is a front view of seamless leggings according to a third embodiment of the present invention, and Figure 8 is a rear view of Figure 7.

The pressing member 300 includes a first lower reinforcement part 410 arranged in a ring shape along the lower inner surface of the first leg part 10 and a lower inner surface of the second leg part 20. A second lower reinforcement part 420 arranged in a ring shape, a first calf reinforcement part 1430 spirally connecting the first lower reinforcement part 410 to the first knee reinforcement part 310, and It may further include a second calf reinforcement unit 1440 that connects the second lower reinforcement unit 420 to the second knee reinforcement unit 320 in a spiral manner.

The first lower reinforcement part 410 and the second lower reinforcement part 420 are arranged in the same shape as the adhesive strip 230 as in the second embodiment.

The lower end of the first leg part 10 can be rolled inward and fixed by heat fusion through the first lower reinforcement part 410, and the lower end of the second leg part 20 can be rolled inward to form the second lower end. It can be heat-sealed and fixed through the reinforcement portion 420.

The lower end 1431 of the first calf reinforcement unit 1430 is connected to the first lower reinforcement unit 410, and the upper end is connected to the first knee reinforcement unit 310.

The first calf reinforcement portion 1430 is arranged in a spiral shape from the ankle to the knee, and has the characteristic of being arranged in a spiral shape toward the left side of the left leg. This shape allows it to more effectively press the calf during the user's activities. You can.

Since the first calf reinforcement portion 1430 is formed as a single spiral, it has the advantage of being easier to place and heat-seal.

The lower end 1441 of the second calf reinforcement unit 1440 is connected to the second lower reinforcement unit 420, and the upper end is connected to the second knee reinforcement unit 320.

The second calf reinforcement portion 1440 is arranged in a spiral shape from the ankle to the knee, and has the characteristic of being arranged in a spiral shape toward the right side of the right leg. Through this shape, it can more effectively press the calf during the user's activities. You can.

Since the second calf reinforcement portion 1440 is formed as a single spiral, it has the advantage of being easier to place and heat-seal.

The pressing member 300 includes a first thigh reinforcement part 1460 connecting the adhesive band 230 in the first popliteal reinforcement part 330, and the adhesive band in the second popliteal reinforcement part 330. It may further include a second thigh reinforcement portion 1470 connecting 230.

The lower end 1461 of the first thigh reinforcement part 1460 is connected to the first popliteal reinforcement part 330, and the upper end 1462 is connected to the adhesive strip 230.

The first thigh reinforcement unit 1460 is arranged in a spiral shape from the knee to the waist, and is arranged in a spiral shape in the opposite direction to the first calf reinforcement unit 1430. This shape allows the thighs to be strengthened during the user's activities. can put pressure on more effectively.

Since the first thigh reinforcement portion 1460 is formed as a single spiral, it has the advantage of being easier to place and heat-seal.

In this embodiment, the lower end 1461 of the first thigh reinforcement 1460 is disposed on the back of the leg, and the upper end 1462 of the first thigh reinforcement 1460 is disposed on the front of the leg.

In particular, the upper end 1462 of the first thigh reinforcement 1460 is located near the left pubis of the pelvis, so that the spiral-shaped first thigh reinforcement 1460 can effectively support the user's left buttocks.

The lower end (1471) of the second thigh reinforcement part (1470) is connected to the second hip reinforcement part (340), and the upper end (1472) is connected to the adhesive strip (230).

The second thigh reinforcement unit 1470 is arranged in a spiral shape from the knee to the waist, and is arranged in a spiral shape in the opposite direction to the second calf reinforcement unit 1440. This shape allows the thigh to be strengthened during the user's activities. can put pressure on more effectively.

Since the second thigh reinforcement portion 1470 is formed as a single spiral, it has the advantage of being easier to place and heat-seal.

In this embodiment, the lower end 1471 of the second thigh reinforcement part 1470 is placed on the back of the leg, and the upper end 1472 of the second thigh reinforcement part 1470 is placed on the front of the leg.

In particular, the upper end 1472 of the second thigh reinforcement 1470 is positioned near the right pubis of the pelvis, so that the spiral-shaped second thigh reinforcement 1470 can effectively support the user's right hip.

Hereinafter, since the remaining configuration is similar to the second embodiment, detailed description will be omitted.

In the detailed description of the present invention, specific embodiments have been described, but of course, various modifications are possible without departing from the scope of the present invention. Therefore, the scope of the present invention should not be limited to the described embodiments, but should be determined not only by the scope of the patent claims described later, but also by the scope of this patent claim and equivalents.

10: 1st leg part 20: 2nd leg part
30: pelvis 31: top
100: Leg body 200: Band
201: Bottom 205: Insertion space
210: Outer band 220: Inner band
230: Adhesive strip
300: Compression member 310: First knee reinforcement unit
320: second knee reinforcement part 330: first knee reinforcement part
340: second popliteal reinforcement part 410: first lower reinforcement part
420: 2nd lower reinforcement part 430: 1st calf reinforcement part
440: 2nd calf reinforcement part 460: 1st thigh reinforcement part
470: Second thigh reinforcement part

Claims (10)

A leg body (100) in which the first leg portion (10) and the second leg portion (20) are integrally woven;
A band 200 integrally woven on the top of the leg body 100;
It includes a pressure member 300 heat-sealed to the inner surface of the leg body 100,
The leg body 100 is made of a first fabric, and the band 200 is made of a second fabric,
The leg body 100 is,
The first leg part 10 and the second leg part 20 are connected at the bottom, and further include a pelvic part 30 surrounding the user's abdomen,
The band 200 is,
Outer band 210 exposed to the outside; an inner band 220 disposed inside the outer band 210;
an insertion space 205 formed between the outer band 210 and the inner band 220;
It includes a string 40 disposed in the insertion space 205 and exposed to the front through the outer band 210,
The elasticity of the second fabric is greater than the elasticity of the first fabric,
The pressing member 300 contains at least 20% by weight of ultrafine polyester fibers,
The pressing member 300 is,
A circular or ring-shaped first knee reinforcement part 310 disposed at the knee area of the first leg part 10;
A circular or ring-shaped second knee reinforcement portion 320 disposed at the knee portion of the second leg portion 20;
A first knee reinforcement unit extending rearward from the left end of the first knee reinforcement unit 310 and connected to the right end of the first knee reinforcement unit 310 via the back of the first leg unit 10. (330);
A second knee reinforcement unit extending rearward from the left end of the second knee reinforcement unit 320 and connected to the right end of the second knee reinforcement unit 320 via the rear surface of the second leg unit 20. (340);
A first lower reinforcement portion 410 arranged in a ring shape along the lower inner surface of the first leg portion 10;
a second lower reinforcement portion 420 arranged in a ring shape along the lower inner surface of the second leg portion 20;
a first calf reinforcement part 430 connecting the first lower reinforcement part 410 to the first knee reinforcement part 310 or the first popliteal reinforcement part 330;
Seamless leggings including a second calf reinforcement part 440 connecting the second lower reinforcement part 420 to the second knee reinforcement part 320 or the second knee reinforcement part 330.
In claim 1,
Seamless leggings in which the lower end of the outer band (210) is woven continuously with the upper end (31) of the pelvic portion (30).
In claim 2,
Seamless leggings in which the lower end of the inner band (220) is adhesively fixed to the inner surface (32) of the outer band (210) or the inner surface (32) of the pelvic region (30).
In claim 3,
It further includes an adhesive band 230 disposed on the upper inner surface 32 of the pelvic portion 30, and the lower end 221 of the inner band 220 and the pelvic portion 30 are connected through the adhesive band 230. Seamless leggings with the top (31) and inner side (32) heat-sealed.
In claim 4,
The adhesive strip 230 is a seamless legging containing at least 20% by weight of ultrafine polyester fibers.
A leg body (100) in which the first leg portion (10) and the second leg portion (20) are integrally woven;
A band 200 integrally woven on the top of the leg body 100;
It includes a pressure member 300 heat-sealed to the inner surface of the leg body 100,
The leg body 100 is made of a first fabric, and the band 200 is made of a second fabric,
The leg body 100 is,
The first leg part 10 and the second leg part 20 are connected at the bottom, and further include a pelvic part 30 surrounding the user's abdomen,
The band 200 is,
Outer band 210 exposed to the outside; an inner band 220 disposed inside the outer band 210;
an insertion space 205 formed between the outer band 210 and the inner band 220;
It includes a string 40 disposed in the insertion space 205 and exposed to the front through the outer band 210,
The elasticity of the second fabric is greater than the elasticity of the first fabric,
The pressing member 300 contains at least 20% by weight of ultrafine polyester fibers,
The pressing member 300 is,
A circular or ring-shaped first knee reinforcement part 310 disposed at the knee area of the first leg part 10;
A circular or ring-shaped second knee reinforcement portion 320 disposed at the knee portion of the second leg portion 20;
A first knee reinforcement unit extending rearward from the left end of the first knee reinforcement unit 310 and connected to the right end of the first knee reinforcement unit 310 via the back of the first leg unit 10. (330);
A second knee reinforcement unit extending rearward from the left end of the second knee reinforcement unit 320 and connected to the right end of the second knee reinforcement unit 320 via the rear surface of the second leg unit 20. Seamless leggings including (340);
In claim 6,
Seamless leggings in which the lower end of the outer band (210) is woven continuously with the upper end (31) of the pelvic portion (30).
In claim 7,
Seamless leggings in which the lower end of the inner band (220) is adhesively fixed to the inner surface (32) of the outer band (210) or the inner surface (32) of the pelvic region (30).
In claim 8,
One end of the first knee reinforcement part 330 is connected to the left end of the first knee reinforcement part 310, and the other end is connected to the right end of the first knee reinforcement part 310,
Seamless leggings wherein one end of the second knee reinforcement part (340) is connected to the left end of the second knee reinforcement part (320), and the other end is connected to the right end of the second knee reinforcement part (320).
A leg body (100) in which the first leg portion (10) and the second leg portion (20) are integrally woven;
A band 200 integrally woven on the top of the leg body 100;
It includes a pressure member 300 heat-sealed to the inner surface of the leg body 100,
The leg body 100 is made of a first fabric, and the band 200 is made of a second fabric,
The leg body 100 is,
The first leg part 10 and the second leg part 20 are connected at the bottom, and further include a pelvic part 30 surrounding the user's abdomen,
The band 200 is,
Outer band 210 exposed to the outside; an inner band 220 disposed inside the outer band 210;
an insertion space 205 formed between the outer band 210 and the inner band 220;
It includes a string 40 disposed in the insertion space 205 and exposed to the front through the outer band 210,
The elasticity of the second fabric is greater than the elasticity of the first fabric,
The pressing member 300 contains at least 20% by weight of ultrafine polyester fibers,
It further includes an adhesive band 230 disposed on the upper inner surface 32 of the pelvic portion 30, and the lower end 221 of the inner band 220 and the pelvic portion 30 are connected through the adhesive band 230. The inner surface (32) of the top (31) is fixed by heat fusion,
The pressing member 300 is,
A circular or ring-shaped first knee reinforcement part 310 disposed at the knee area of the first leg part 10;
A circular or ring-shaped second knee reinforcement portion 320 disposed at the knee portion of the second leg portion 20;
A first knee reinforcement unit extending rearward from the left end of the first knee reinforcement unit 310 and connected to the right end of the first knee reinforcement unit 310 via the back of the first leg unit 10. (330);
A second knee reinforcement unit extending rearward from the left end of the second knee reinforcement unit 320 and connected to the right end of the second knee reinforcement unit 320 via the rear surface of the second leg unit 20. (340);
A first lower reinforcement portion 410 arranged in a ring shape along the lower inner surface of the first leg portion 10;
a second lower reinforcement portion 420 arranged in a ring shape along the lower inner surface of the second leg portion 20;
a first calf reinforcement part 430 connecting the first lower reinforcement part 410 to the first knee reinforcement part 310 or the first popliteal reinforcement part 330;
a second calf reinforcement part 440 connecting the second lower reinforcement part 420 to the second knee reinforcement part 320 or the second popliteal reinforcement part 330;
a first thigh reinforcement part 460 connecting the adhesive band 230 to the first knee reinforcement part 310 or the first popliteal reinforcement part 330;
Seamless leggings including a second thigh reinforcement portion (470) connecting the adhesive strip (230) to the second knee reinforcement portion (320) or the second knee reinforcement portion (330).

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