KR101673376B1 - Shoes with waterproof function - Google Patents

Abstract

The present invention relates to a shoe sole which is formed by the action of moisture and a high temperature in the outside by combining a moisture-sensitive cheek part composed of a moisture-sensitive cheek shrinking or stretching according to the moisture content of the shoe inside and outside and a nonwoven fabric- The present invention relates to a shoe having a moisture-permeable and waterproof function capable of autonomous ventilation control capable of quickly discharging moisture from the inside to the outside.
According to the present invention, there is provided a shoe comprising an upper which covers and protects an ankle, a middle which is provided on the bottom of the upper so as to absorb impact, and a sole provided at the lower end of the middle to protect the middle, A water repellent support member composed of a moisture sensitive support member contracted or stretched according to the moisture content of the inside and the outside of the shoe, a nonwoven fabric end coated with an absorptive polymer on the outside, and an adhesive resin for bonding the moisture sensitive support end and the nonwoven fabric end together Features a breathable and waterproof footwear.

Description

Shoe with breathable waterproof function {Shoes with waterproof function}

The present invention relates to a shoe having a breathable and waterproof function. More specifically, a moisture-sensitive cheek having a moisture-sensitive cheek that shrinks or elongates depending on the moisture content of the shoe, and a non-woven fabric coated with an absorbent polymer on the outside are adhered to each other through an adhesive resin, The present invention relates to a shoe having a moisture-permeable and waterproof function capable of autonomous ventilation control capable of rapidly discharging moisture generated inside a shoe to the outside.

In general, a shoe protects a person's foot. It protects the foot while blocking the foot from the outside when walking or jogging. Starting with these basic functions, shoes that have various functions have been developed recently, and they are satisfying consumers by adding functionality such as walking shoes and marathon shoes.

On the other hand, in the case of marathon, the marathon movement is basically a forward movement only, but it does not require complicated form functions such as tennis or basketball, but since it exercises for a long time at the same speed, the comfort inside the marathon, It is important to keep humidity inside the shoe constant by discharging moisture to the outside quickly.

In addition, in the case of trail walking, it is a shoe that is suitable for hiking in which you can enjoy nature scenery while taking a mountain route recently. In the case of trail walking, it should be lighter than hiking and have high impact absorbing power.

Particularly, in the case of trail walking and marathon which are being developed recently, sweat is generated due to the temperature inside the shoe while walking on the high ambient temperature in the summer, which affects the mobility. Therefore, Gore-tex's breathable waterproof fabric By using the breathable and waterproof function, it helps to improve the comfort inside the shoe.

FIG. 1 is a perspective view of a moisture-permeable and waterproof fabric attached to the inside of a shoe in the form of a sock using a conventional breathable and waterproof fabric manufactured in a similar manner to the breathable and waterproof fabric of the US Gore-tex Co., Was made by sewing the breathable and waterproof fabric in the shape of socks, and joining the fabric back to the shoe upper fabric.

However, Gore-tex's breathable waterproof fabric has the moisture permeability and waterproofness of the fabric itself, but lacks the autonomous functionality that quickly releases it out when moisture is generated inside. That is, when the humidity of the inside is higher than a predetermined humidity, the moisture is discharged to the outside.

In addition, when the shoe shoe is made, the outer upper fabric and the moisture-permeable and waterproof fabric are not smoothly joined together, so that there is a difficulty in the process of assembling the air permeable and waterproof fabric of the socks shape with the upper fabric.

Korean Patent Publication No. 10-0930488

SUMMARY OF THE INVENTION Accordingly, the present invention has been made to solve the above-mentioned problems, and it is an object of the present invention to provide a water repellent support member composed of a moisture barrier member shrinking or stretching according to the moisture content of the inside and outside of the shoe, and a nonwoven fabric- And to provide a shoe having a breathable and waterproof function capable of autonomous ventilation control capable of promptly discharging moisture inside the shoe caused by exercise and high temperature of the outside by collapsing.

According to the present invention, there is provided a shoe comprising an upper which covers and protects an ankle, a middle which is provided on the bottom of the upper so as to absorb impact, and a sole provided at the lower end of the middle to protect the middle, A water repellent support member composed of a moisture sensitive support member contracted or stretched according to the moisture content of the inside and the outside of the shoe, a nonwoven fabric end coated with an absorptive polymer on the outside, and an adhesive resin for bonding the moisture sensitive support end and the nonwoven fabric end together Features a breathable and waterproof footwear.

On the other hand, the moisture-sensitive support yarn is a yarn formed by covering a polypropylene yarn in a circumferential direction of the modified polyester yarn to cover it.

On the other hand, the moisture sensitive supporter is characterized by being a tricot fabric prepared by fabricating the moisture sensitive support yarn into a warp knitted fabric.

The nonwoven fabric is characterized in that the nonwoven fabric is a fabric prepared by dispersing an absorbent polymer in a polyurethane solution and then impregnating the nonwoven fabric with the dispersed solution.

On the other hand, the modified polyester raw material is characterized by being a mixture of 5-sodium sulfo dimethyl isophthalate mixed during the polyester polymerization process.

On the other hand, the adhesive resin is a water-dispersed polyurethane adhesive resin having a viscosity of 8,000 to 10,000 cps, a moisture permeability of 6,000 to 7,000 g / cm 2/24 hr, and an adhesive strength of 2.5 to 3.0 kgf / cm.

On the other hand, the absorbent polymer is liquid sodium polyacrylate.

In the shoe having moisture permeable and waterproof function according to the present invention, when moisture is increased inside the shoe due to sweating which occurs during walking and exercise, the pores of the moisture sensation cheek are increased and the breathability is increased and the water absorbing polymer in the nonwoven fabric finally Can be absorbed and discharged to improve the comfort, and can provide an effect of reducing the wearer's fatigue as well as comfort in walking and exercise, and also has the effect of removing foot odor and preventing an athlete's foot by the moisture permeable and waterproof function.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a shoe end view showing a conventional breathable and waterproof fabric. FIG.
2 is an exploded perspective view of a shoe having a breathable and waterproof function according to an embodiment of the present invention.
FIG. 3 is a view showing a moisture-sensitive support yarn formed by wrapping a polypropylene yarn in a circumferential direction of the modified polyester yarn among the moisture sensitive support ends of FIG. 2.
Fig. 4 is a gripping check list for evaluating the grip of a shoe having a breathable and waterproof function according to the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. First, in adding reference numerals to constituent elements of each drawing, it should be noted that the same constituent elements are denoted by the same reference numerals even though they are shown in different drawings. In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear.

FIG. 2 is an exploded perspective view of a shoe having a moisture-permeable and waterproof function according to an embodiment of the present invention. FIG. 3 is a cross-sectional view of a moisture- FIG. 4 is a gripping check list for evaluating the grip of a shoe having a breathable and waterproof function according to the present invention.

Referring to FIG. 2, a shoe 10 having a breathable and waterproof function according to the present invention includes an upper member 100, a middle member 200, and a sole 300.

The upper part 100 covers and protects the foot and the ankle. The upper part 100 includes a moisture sensation support part 110 composed of a moisture sensitive support yarn contracted or stretched according to the moisture content of the shoe, a nonwoven fabric part 130 coated with an absorptive polymer on the outside, And an adhesive resin 120 for bonding the nonwoven fabric 130 to each other.

It is preferable that the moisture sensing supporter (110) is a tricot fabric prepared by fabricating a moisture sensitive support yarn into a warp knit structure. Further, it is preferable that the tricot fabric is knitted into a two-way structure and the pattern shape is knitted in a square or hexagonal pattern.

In particular, the moisture-sensitive support yarn is preferably a yarn formed by covering the polypropylene yarn 111 in the circumferential direction of the modified polyester yarn 112 (see FIG. 3). The modified polyester yarn 112 is made of a modified polyester yarn 112 and a polypropylene yarn 111 wrapped and covered with the modified polyester yarn, It has a characteristic that it stretches by a certain volume in the longitudinal direction of the yarn and is stretched by the influence of moisture generated in the shoe when it is used as the upper fabric of the shoe. The polypropylene yarn 111 is hydrophobic fiber, and moisture in the shoe can be quickly transferred to the modified polyester yarn 112, thereby maximizing the moisture feel.

It is preferable that the modified polyester yarn 112 is a raw material mixed with 5-Sodium Sulfo-dimethyl isophthalate during the polyester polymerization process.

As a result, each of the moisture-sensitive cheek members made up of a moisture-sensitive cheek is stretched by the moisture generated by the shoe, and each of the moisture-sensitive cheek yarns is elongated. In the knitted fabric, Is increased and drying speed is accelerated, so that a cold feeling can be given.

The nonwoven fabric 130 is coated on the outside with the absorbent polymer 130. The nonwoven fabric 130 is a fabric prepared by dispersing an absorbent polymer in a polyurethane solution and then impregnating the nonwoven fabric with the dispersed solution, It is preferable to use liquid sodium polyacrylate. The nonwoven fabric 130 may include a polypropylene nonwoven fabric or a polyester nonwoven fabric.

The middle 200 is installed on the bottom of the upper 100 to absorb shock. The middle 200 is connected between the sole 300 and the upper 100 to join the sole 300 and the upper 100. Particularly, on the outer surface of the middle window 200, a receiving groove 210 capable of firmly mounting the upper 100 and the sole 300 can be formed.

The sole 300 and the midsole 200 are made of a material having a high resistance to abrasion and made of a low specific gravity high resilience rubber and are made of polystyrene (PS), ethylene-vinyl acetate copolymer (EVA) , Polyethylene, polyurethane (PU), polyvinyl chloride (PVC), and styrene-butadiene-styrene copolymer.

Preferably, the adhesive resin 120 is a water-dispersed polyurethane adhesive resin having a viscosity of 8,000 to 10,000 cps, a moisture permeability of 6,000 to 7,000 g / cm 2/24 hours, and an adhesive strength of 2.5 to 3.0 kgf / cm.

2, the upper part 100 of the upper part 100 is coated with the nonwoven fabric 130 and the adhesive resin 120. The upper part of the nonwoven fabric 130 has a mesh fabric or polyester A tricot fabric using a yarn can be bonded.

Therefore, the shoe having the moisture-permeable and waterproof function according to the present invention has the property of discharging the water generated inside the upper part to the outside and not allowing the water generated from the outside of the upper part to pass through, so that it has a moisture-proof and waterproof function.

In the present invention, a shoe using an upper member formed by mixing a hydrophilic root support member and a nonwoven fabric is exemplified. However, in some cases, the root support member itself may be used as an upper member, and an upper member formed by assembling a moisture supporting member and a mesh fabric may be used There will be.

[Table 1] shows the results of the marathon formation in which the moisture barrier supporter and the nonwoven fabric fabric are assembled through the adhesive resin on the upper part of the shoe having the breathable and waterproof function according to the present invention. ) And a comparison marathon (right).

HS: Marathon with breathable waterproof upper AS: Comparison Marathon

As shown in Table 1, 15 marathoners (HS) and general marathoners (AS) with breathable waterproof upper were applied to 15 marathon riders. The degree of pain or discomfort in the toe, toe, ankle medial, medial, medial, medial, arch, medial, or medial heel) was assessed in five steps (severe pressure: 1 point, , Appropriate: 3 points, loose: 4 points, very loose: 5 points), and the evaluation results of 15 persons were added, and the average values are shown in Table 2 below.

Time shoes thumb
toes young
toes Ball
Medial Ball
center Ball
Outside Arch
Outside Arch
Medial Inside of heel Outside heel short-term
Grip HS 3.0 2.9 3.0 2.9 2.9 2.8 3.2 2.8 2.9 AS 3.2 2.8 2.8 2.7 3.1 3.1 2.9 2.8 3.0 long time
Grip HS 3.0 3.1 3.0 3.2 3.1 3.2 3.1 3.1 3.0 AS 3.3 3.0 3.3 3.4 3.4 3.3 3.3 3.4 3.4

Table 3 shows the results of walking (left) to which the breathable waterproof upper according to the present invention is applied, with respect to the walking of the upper part of the shoe having the breathable and waterproof function according to the present invention, And a comparison of walking (right).

HT: Walking with a breathable waterproof upper NT: Comparison Walking

In Table 3, 15 marathon dancers were evaluated for the walking (HT) and general walking (NT) with breathable waterproof upper. The evaluation of the feeling of grip was performed on 9 parts of the foot (big toe , And the degree of pain or discomfort at the medial side of the ankle, the medial side of the ankle, the medial side of the ankle, the middle of the ball, the medial side of the arch, the medial heel and the medial heel) (3 points, loose: 4 points, very loose: 5 points). The evaluation results of the 15 subjects are summarized and the average values are shown in Table 4.

Time shoes Big toe Toes Inside the ball Ball center Lateral ball Arch outside Arch internals Inside of heel Outside heel short-term
Grip HT 2.9 3.3 3.0 3.2 2.9 2.8 2.9 3.1 3.1 NT 3.1 3.1 2.9 3.3 2.6 2.4 2.7 2.7 2.6 long time
Grip HT 3.3 3.1 3.4 3.3 3.4 3.4 3.2 3.2 3.1 NT 3.3 3.4 3.6 3.4 3.4 3.7 3.1 3.4 3.3

Therefore, the short-term and long-term results of the evaluation of the marathon of Table 2 and the walking of Table 4 show that the marathon and walk-in garments are superior to the comparative marathon and comparative walking .

Therefore, when the moisture of the inner part of the shoe is increased due to the perspiration that occurs during walking and exercise, the moisture sense supporter 110 and the nonwoven fabric 130 constituting the upper part 100 of the shoe according to the present invention, The air permeability is increased to increase the air permeability and the moisture is absorbed and discharged by the absorbent polymer in the nonwoven fabric 130 to improve the comfort. In addition, the moisture support yarn is elongated due to the moisture generated in the shoe, The surface contact state is changed to the point contact state, the length is increased, the tissue is loosened, the air inflow is increased, the drying speed is increased, and the comfort is improved.

While the present invention has been described with reference to exemplary embodiments, it is to be understood that the invention is not limited to the disclosed exemplary embodiments. Therefore, the embodiments disclosed in the present specification are intended to illustrate rather than limit the present invention, and the scope and spirit of the present invention are not limited by these embodiments. The scope of the present invention should be construed according to the following claims, and all the techniques within the scope of the present invention should be construed as being included in the scope of the present invention.

10: Shoes
100: upper
110: Moisture supporter
120: Adhesive resin
130: Non-woven fabric
200: Medium
300: Outsole

Claims (7)

1. A shoe comprising an upper which covers and protects the foot and an ankle, a middle which is provided on the bottom of the upper to absorb the impact, and a sole provided on the lower end of the middle to protect the middle,
The upper part includes a moisture sensitive cheek part composed of a moisture sensitive cheek that contracts or elongates according to the moisture content of the inside and outside of the shoe, a nonwoven fabric outer side coated with an absorbent polymer, and an adhesive resin for bonding the moisture sensitive cheek end and the nonwoven fabric to each other It features a waterproof breathable footwear.
The method according to claim 1,
Characterized in that the moisture barrier support yarn is a yarn formed by wrapping a polypropylene yarn in a circumferential direction of the modified polyester yarn and covering the same.
3. The method of claim 2,
Wherein the moisture-sensitive support member is a tricot fabric made by shaping the moisture-sensitive support yarn into a warp-knit structure.
The method according to claim 1,
Wherein the nonwoven fabric is a fabric prepared by dispersing an absorbent polymer in a polyurethane solution and then impregnating the nonwoven fabric with the dispersed solution.
3. The method of claim 2,
Wherein the modified polyester yarn is a yarn spun by mixing 5-Sodium Sulfo-dimethyl Isophthalate during the polyester polymerization process.
The method according to claim 1,
Wherein the adhesive resin is a water-dispersed polyurethane adhesive resin having a viscosity of 8,000 to 10,000 cps and a moisture permeability of 6000 to 7000 g / cm 2/24 hr and an adhesive strength of 2.5 to 3.0 kgf / cm.
5. The method of claim 4,
Wherein the water absorbent polymer is liquid sodium polyacrylate.

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