KR20210057568A - Fabric for sweat wear comprising diet composition - Google Patents

Abstract

The present invention relates to a fabric for a sweat suit containing a weight loss composition, wherein a sweat suit realized therethrough has excellent washing fastness while facilitating the user's sweat discharge to be excellent. In addition, the weight loss composition released from the sweat suit through the user's sweat generated by exercise after wearing the sweat suit helps to express weight loss effects by inducing absorption through the user's skin, thereby being capable of expecting very high weight loss effects.

Description

Fabric for sweat wear comprising diet composition

The present invention relates to a fabric for sweat containing a composition for diet.

In general, a blended knitted fabric of a polyester yarn and a polyurethane-based yarn (spandex) has excellent elasticity and quick-drying properties, and is thus widely applied to sportswear such as sportswear. However, in the case of a mixed-knit fabric of such a polyester yarn and a polyurethane yarn, when the content of the polyurethane yarn is about 10% by weight or more based on the weight of the polyester yarn, the fabric is not dyed well, so physical properties such as washing fastness There is a problem that it is difficult to use as a fabric for sweat because it is deteriorated and physical properties such as friction fastness and cloth fit are not guaranteed.

In order to solve this problem, Korean Patent No. 10-1489424 discloses a technology for providing a polyester-based fiber having excellent elasticity by using a composite component of polyester and polyethylene terephthalate to improve the physical properties of yarn. . However, when the fiber according to the prior art is used as a yarn, there is a problem in that the manufacturing cost is increased compared to the case of using a pure polyester yarn.

On the other hand, among sportswear, sweat suits are clothing that increase body temperature by blocking heat generated from the body from being released to the outside, while promoting the secretion of sweat. Sweat suits having such a function are commonly used to maximize the exercise effect or weight loss effect by generating a large amount of sweat more effectively through exercise by the user, but simply maximizing the occurrence of sweat to express the weight loss effect There is a limit.

The present invention has been devised in consideration of the above points and is implemented as a clothing, so that when the user wears it, the sweat discharge is excellent, the washing fastness is excellent, and the diet composition released from the sweat suit through the user's sweat is absorbed through the user's skin. It is an object of the present invention to provide a fabric for sweating containing a composition for dieting that induces to express a diet effect.

In order to solve the above-described problems, the present invention provides a fabric for sweating, which contains a composition for diet including a fabric, and a polyurethane coating layer provided on one side of the fabric by containing the composition for diet.

According to an embodiment of the present invention, the diet composition may contain as an active ingredient an extract for three or more types of cheongyeon products selected from the group consisting of gwonbaek, cinnamon, adlay, upper limb, fennel, green tea, licorice and rhubarb. . More preferably, the diet composition may contain extracts for gwonbaek, adlay, upper limb and fennel as an active ingredient.

In addition, the polyurethane coating layer may be formed by laminating a polyurethane film including a polyurethane resin, a diet composition, and a polyalkylene oxide having a weight average molecular weight of 4000 to 10,000 on one surface of a fabric and then treating high frequency.

In addition, the diet composition may be provided by being supported on hollow silica.

In addition, the polyurethane film may contain 10 to 30 parts by weight of polyalkylene oxide based on 100 parts by weight of the polyurethane resin.

In addition, the polyurethane film may further include 5 to 10 parts by weight of cetaaryl glucoside based on 100 parts by weight of the polyurethane resin.

In addition, the polyalkylene oxide may include polyethylene oxide and polybutylene oxide in a weight ratio of 1: 0.4 to 0.6.

The sweat suit implemented with the sweat suit fabric according to the present invention has excellent sweat discharge by the user when worn, and has excellent washing fastness. In addition, as the diet composition released from the sweat suit is absorbed through the user's skin through the user's sweat generated by the exercise after wearing the sweat suit, it helps to express the diet effect, so a very increased weight loss effect can be expected. I can.

Hereinafter, embodiments of the present invention will be described in detail so that those of ordinary skill in the art may easily implement the present invention. The present invention may be implemented in various different forms and is not limited to the embodiments described herein.

The fabric for sweating according to an embodiment of the present invention contains a fabric and a composition for diet, and includes a polyurethane coating layer provided on one side of the fabric.

The fabric may be used without limitation in the case of a conventional fabric used for sports clothing. The fabric may be a woven or knitted fabric. In addition, the fabric may be used without limitation in the case of known yarns such as polyester-based yarn, polyurethane-based yarn, polyamide-based yarn, and cellulose-based yarn as yarn. For example, the fabric may be a warp knitted fabric, and may be knitted by mixing a polyester-based yarn and a polyurethane-based yarn. The polyester-based yarn is a synthetic fiber obtained by spinning a polyester such as a condensation polymer of terephthalic acid and ethylene glycol, and a commercially available one may be used. Polyester fibers are generally known to have sufficient acid resistance and alkali resistance, high mechanical strength, and excellent durability. The polyester fiber has a strength when pulled out next to nylon, and the strength when wetted with water does not change. However, since it has weak hygroscopicity and little elasticity, it can be used in combination with other fibers or supplemented through physical or chemical yarn processing.

The polyurethane-based yarn may be spandex as an example. Polyurethane-based yarn stretches well like rubber and has excellent recovery properties. Polyurethane-based yarns are usually used in combination with other fibers, and the content thereof may be used in a mixing ratio of 5 to 6% by weight based on the weight of the total fibers, and sufficient elasticity can be obtained. According to an embodiment of the present invention, the polyurethane-based yarn may be mixed with 5 to 20 parts by weight based on 100 parts by weight of the polyester yarn. If the polyurethane-based yarn is mixed with less than 5 parts by weight, the elasticity of the fabric is not guaranteed. In addition, when used in excess of 20 parts by weight, the density of the fabric is too high, which may cause a problem of lowering moisture permeability.

Since the manufactured fabric has high density and light properties, in summer, the hot air from outside does not penetrate the fabric well and the area where the fabric and the skin contact is high, so it can easily absorb body heat, so it can be worn with a cooler feel. have. In addition, even in winter, outside cold air does not penetrate well into the fabric, so that the warmth effect can be obtained. In order to express this effect, the fabric may be knitted to have a density in the range of 100 to 120 g/yard.

Next, a polyurethane coating layer provided on the surface of the fabric will be described.

The polyurethane coating layer is a layer in which the fabric functions as a sweat suit. The polyurethane coating layer contains a composition for diet, through which the composition for diet is eluted through the sweat generated from the user's skin after wearing the sweat suit as well as the function of the sweat suit on the fabric. It is characterized by further improving the weight loss effect through sweating by allowing it to be absorbed through. In addition, since the diet composition must be eluted through sweat, the polyurethane coating layer may be manufactured such that the polyurethane coating layer is positioned on the back side of the sweat suit that touches the skin when the polyurethane coating layer is manufactured as a clothing using a sweat cloth.

The diet composition may be used without limitation in the case of a known composition known to be effective in diet. However, preferably, the diet composition may contain, as an active ingredient, extracts of three or more kinds of natural products selected from the group consisting of gwonbaek, cinnamon, adlay, upper limb, fennel, green tea, licorice and rhubarb. More preferably, the composition for diet may include extracts for gwonbaek, adlay, upper limb, and fennel, through which the active ingredients can be absorbed through the skin and exhibit excellent fat accumulation inhibitory effect. In addition, it is important that the diet composition is eluted from the polyurethane coating layer through sweat, but is eluted at an appropriate rate.If the dissolution rate is too fast, the persistence of the weight loss effect through sweat clothing may be poor. There is a concern that the weight loss effect may be lost only by washing once or twice because it is excessively eluted. As a result of continuous research on this, the inventors of the present invention have found that the release rate can be controlled through the composition of the polyurethane coating layer described later, but the release rate is also changed depending on the type of active ingredient in the diet composition. And when the extract for fennel is included, it is possible to achieve a more excellent effect in terms of not only the weight loss effect but also the persistence of the weight loss effect in sweating. Even more preferably, the diet composition may include cold water extract of gwonbaek low temperature water, ethanol extract of adlay, hot water extract of upper limb and hot water extract of fennel, through which it may be more advantageous to achieve the object of the present invention. More specifically, the gwonbaek low-temperature water extract may be extracted for 10 to 20 hours at a temperature of 4 to 10°C. In addition, the ethanol extract of Yulmu may be extracted for 3 to 20 hours at room temperature, for example, 20 to 25°C using ethanol as an extraction solvent. In addition, the upper limb hot water extract and fennel hot water extract may be extracted for 1 to 5 hours in hot water at 70 to 90°C. In addition, these gwonbaek low-temperature water extract, julmu ethanol extract, upper limb hot water extract, and fennel hot water extract may be included in a weight ratio of 1:0.5:0.8:1.2, for example.

On the other hand, the diet composition described above may be supported on hollow silica and provided on a polyurethane coating layer, and as the supported diet composition gradually elutes through the porous shell of the hollow silica, the persistence of the weight loss effect is improved. It can be very beneficial. The hollow silica may be used without limitation in the case of commercially available hollow silica, and as an example, one having an average particle diameter of 20 to 60 μm and a porosity of 15 to 50% may be used.

In addition, the polyurethane coating layer may include a polyurethane resin serving as a matrix of the coating layer and a polyalkylene oxide capable of controlling the release rate of the diet composition in addition to the above-described diet composition.

The polyurethane resin may be a conventional polyurethane resin used to manufacture a fabric for sweat. The polyurethane resin may preferably be a water-dispersible polyurethane resin, through which there is an advantage of preventing skin problems that may occur due to environmental pollution caused by the use of an organic solvent or remaining on the fabric.

The polyalkylene oxide is provided to control the release rate of the diet composition. The polyalkylene oxide is gradually dissolved in the polyurethane coating layer through sweat and the skin surface temperature condition of the user, which is increased through exercise after wearing a sweat suit, to form fine pores on the surface of the polyurethane coating layer, and sweat through the pores. It penetrates to elute the diet composition, and the pores create new pores into the polyurethane coating layer again by perspiration, and the release rate of the diet composition through the permeation of the diet composition again through the flow path to which the pores are connected Can be adjusted. If polyalkylene oxide is not provided, only the diet composition exposed to the surface of the polyurethane coating layer can be eluted by sweat, and the diet composition contained inside the polyurethane coating layer cannot be eluted, so it is contained in the polyurethane coating layer. Even if it is, the p-weight effect may not be able to be expressed. The polyalkylene oxide may preferably have a weight average molecular weight of 4,000 to 10,000, more preferably 6000 to 10,000, more preferably 8000 to 10,000, thereby achieving the object of the present invention. It may be more advantageous to If the weight average molecular weight is less than 4000, the dissolution rate of the diet composition increases significantly and it may be difficult to continuously express the weight loss effect, and the collapse of the polyurethane coating layer accelerates to decrease the washing fastness, and the durability as a sweat suit may be significantly reduced. I can. In addition, if the weight average molecular weight exceeds 10,000, the dispersibility with the polyurethane resin decreases, and the dissolution effect of a uniform diet composition over the entire surface of the fabric cannot be expressed, and the polyalkylene oxide concentrated in a specific area is eluted. Therefore, the coating layer There is a fear that the durability is significantly reduced, such as a large hole is formed in the.

On the other hand, the polyalkylene oxide may contain polyethylene oxide and polybutylene oxide in a weight ratio of 1: 0.4 to 0.6, thereby further improving the washing fastness, while maintaining the original function of the polyurethane coating layer even in frequent washing. It is possible to improve the persistence of dissolution of the solvent composition. If the weight of polybutylene oxide relative to the weight of polyethylene oxide is less than 0.4 times, there is a concern that the washing fastness of the polyurethane coating layer may decrease, and if it is provided in excess of 0.6 times the weight of polyethylene oxide, the coating property of the coating layer decreases, There is a fear that the dissolution of the diet composition may decrease.

The polyalkylene oxide in the polyurethane coating layer described above may contain 10 to 30 parts by weight of polyalkylene oxide, more preferably 10 to 20 parts by weight, based on 100 parts by weight of the polyurethane resin, and the diet composition is a polyurethane resin. It may be included in 3 to 10 parts by weight based on 100 parts by weight. When the polyalkylene oxide is included in an amount of less than 10 parts by weight, it may be difficult to form micropores through the polyalkylene oxide and to dissolve the diet composition that is not exposed to the surface of the polyurethane coating layer. In addition, if the polyalkylene oxide is included in an amount of more than 30 parts by weight, dispersibility may be difficult to form a coating layer, and there is a concern that durability of the polyurethane coating layer may decrease due to elution of the polyalkylene oxide. In addition, if the diet composition is provided in less than 3 parts by weight with respect to 100 parts by weight of the polyurethane resin, the weight loss effect may be insignificant, and if it exceeds 10 parts by weight, the washing fastness and durability of the polyurethane coating layer may be deteriorated. .

Meanwhile, the polyurethane coating layer may further include 5 to 10 parts by weight of cetaaryl glucoside based on 100 parts by weight of the polyurethane resin. The cetaaryl glucoside improves the dispersibility of the polyalkylene oxide, thereby expressing the dissolution effect of a uniform diet composition over the entire surface of the fabric, and ensuring the durability of the coating layer. If less than 5 parts by weight of cetaaryl glucoside is provided, the effect of improving the dispersibility between the polyurethane resin and the polyalkylene glycol may be insignificant, and there is a concern that polyalkylene oxide is concentrated in a specific portion. In addition, if the amount of thetaaryl glucoside exceeds 10 parts by weight, the effect of improving dispersibility may be insignificant, and there is a concern that washing fastness may decrease due to additional elution of thetaaryl glucoside.

On the other hand, the polyurethane coating layer may be formed by treating a coating composition including the above-described polyurethane resin, polyalkylene oxide, diet composition, and a solvent on one surface of a fabric. Alternatively, the polyurethane coaching layer may be formed through high-frequency treatment after the coating composition is coated on a release paper and a polyurethane film having a predetermined thickness is laminated to one surface of a fabric. In the method of direct treatment of the coating composition, the coating composition can permeate toward the opposite side of one side through the pores in the fabric, so that the air permeability and flexibility of the fabric itself can be significantly reduced, and a polyurethane coating layer having a uniform thickness is realized. On the other hand, if it is made of a polyurethane film and then laminated with the fabric through high frequency, it may be advantageous to implement a polyurethane coating layer having a uniform thickness on one side of the fabric while maintaining the pores of the fabric as much as possible. .

The present invention will be described in more detail through the following examples, but the following examples do not limit the scope of the present invention, which should be construed to aid understanding of the present invention.

<Example 1>

A warp knitted fabric was prepared through a warp knitting machine by mixing 20 parts by weight of spandex yarn, which is a polyurethane-based yarn, based on 100 parts by weight of PET yarn. At this time, the warp knitted fabric was manufactured in the standards of 30 Wale/inch, 20 Width/inch, and 100 Weight/(g/y).

To form a polyurethane coating layer formed by laminating a polyurethane film prepared through the following preparation example on one side of the warp knitted fabric, and applying a high frequency to form a polyurethane coating layer formed by fusion bonding a polyurethane film to one side of the warp knitted fabric, a fabric for sweating as shown in Table 1 was prepared. Was prepared.

* Preparation example

1) Preparation Example 1-Preparation of polyurethane resin dispersion

140 parts by weight of a block copolymer having a number average molecular weight of 2500 with a polyoxyethylene-polyoxypropylene-polyoxyethylene block copolymer based on 100 parts by weight of polyethylene glycol having a weight average molecular weight of 600 as a diol component, and a weight average molecular weight of 1200 And 155 parts by weight of polydimethylsiloxane (LKSILPOL-1000) containing hydroxyalkyl groups at both ends was added to the reactor with a dibutyltindilaurate catalyst, mixed, heated to 95℃, and reduced to 700mmHg using a vacuum pump. After removing the moisture for 30 minutes, it was cooled to 25°C. Thereafter, hexamethylene diisocyanate was added to the diol component from which water was removed at a rate of 30 g/min, but the hexamethylene diisocyanate and diol component were added in a ratio of 1: 2.2 by weight. When F-NCO was measured at intervals of minutes, and when it reached 4.5, it was cooled to 40° C., and dimethylpyrrosol was gradually titrated as a blocking agent. When the titration is completed, the temperature is raised to 85°C, and F-NCO is measured every 10 minutes for blocking. When F-NCO is 0, cooled to 45°C, and then ionized water is added at a rate of 40g/min. A 30% by weight dispersion/dissolved dispersion of pH 6.0 was prepared.

2) Preparation of diet composition

After extracting the geunbaek at 5° C. for 15 hours, a powdery gwanbaek low-temperature water extract was prepared, concentrated under reduced pressure and lyophilized by a conventional method. In addition, after extracting the Yulmu through ethanol at 25°C for 10 hours, an ethanol extract of Yulmu powder was prepared, concentrated under reduced pressure and lyophilized in a conventional manner. In addition, in the case of upper limb and fennel, a powdery upper limb hot water extract and a fennel hot water extract were prepared, respectively, in the form of a powdery upper limb hot water extract, which was extracted in hot water at 80° C. for 4 hours and then concentrated under reduced pressure and lyophilized by a conventional method. The prepared gwonbaek low-temperature water extract, julmu ethanol extract, upper limb hot water extract, and fennel hot water extract were mixed in a weight ratio of 1:0.5:0.8:1.2 to prepare a diet composition.

3) Manufacture of polyurethane film

After mixing 10 parts by weight of polyethylene oxide with a weight average molecular weight of 8000 to the prepared polyurethane resin dispersion and 10 parts by weight of the prepared diet composition based on 100 parts by weight of the polyurethane resin, apply it on the PET release film, and then dry at 120°C. To prepare a 500 μm-thick polyurethane film.

<Examples 2 to 11>

It was prepared in the same manner as in Example 1, but by changing the composition of the polyurethane coating layer as shown in Table 1 below, a sweat fabric as shown in Table 1 was prepared.

<Comparative Example 1>

It was prepared in the same manner as in Example 1, but by changing the composition of the polyurethane coating layer as shown in Table 1 below, a sweat fabric as shown in Table 1 was prepared.

<Experimental Example 1>

It is shown in Table 1 below by evaluating the following physical properties for the fabrics for sweating according to Examples and Comparative Examples.

1. Micropore formation

The prepared fabric for sweat clothing was cut into 10 cm in width and length, respectively, to prepare a total of 100 specimens in each of Examples and Comparative Examples. In order to examine the presence or absence of micropores in the polyurethane film of the prepared specimen and the uniformity of the micropores, as Condition 1, after exercise, immerse in water adjusted to a temperature similar to body temperature of 40℃ for 10 hours, and take out and visualize. As a result, it was observed whether pores and macropores were generated on the surface of the polyurethane film. As a result of the observation, the number of non-uniform pore specimens, which is a specimen in which pores were formed so that one side of the warp-knitted surface was exposed, and a specimen in which 10 or more pores exceeding 1 mm in diameter, were formed, were counted. It can be interpreted that the dissolution of the diet composition is too fast or the damage of the polyurethane film is large, so that the decrease in durability is large as the number of non-uniform specimens increases.

In addition, as a result of observation after evaluation under condition 1, the number of specimens with less than 20 micropores confirmed by the naked eye was counted and expressed as the number of non-porous specimens.

Next, in order to examine the degree of micropore formation in the prepared specimen under more extreme conditions, as Condition 2, after immersing in water adjusted to 45°C for 30 hours, the pore-free particles formed on the surface of the polyurethane film through a microscope and The generation of macropores was observed, and the number of problematic specimens was counted in the same way.

2. Washing fastness

After manufacturing 100 sweat suits for each example and comparative example with the fabric for sweat clothing, a total of 50 sets of washing and drying under the general washing conditions programmed in a general drum washing machine (water temperature 25°C) as one set. Washing was carried out. Thereafter, 10 experts evaluated the washing fastness of sweat clothes, and the number of sweat clothes judged to be unable to function as sweat clothes, such as the polyurethane film peeling off among 100 clothes, was counted and shown in the table below. The larger the number, the poorer the fastness to washing.

Example 1 Example 2 Example 3 Example 4 Example 5 Example 6 Example 7 Example 8 Example 9 Example 10 Example 11 Comparative Example 1 Polyurethane resin (parts by weight) 100 100 100 100 100 100 100 100 100 100 100 100 Polyalkylene glycol Content (parts by weight) 10 20 30 5 35 20 20 20 20 20 20 0 Type 1 (weight average molecular weight) PEO/8000 PEO/8000 PEO/8000 PEO/8000 PEO/8000 PEO/6000 PEO/4000 PEO/2200 PEO/8000 Not included PEO/8000 Not included Type 2 (weight average molecular weight) Not included Not included Not included Not included Not included Not included Not included Not included PBO/8400 PBO/8400 PBO/8400 Not included Type 1: Type 2 weight ratio - - - - - - - - - - 1:0.5 - Diet composition (parts by weight) 10 10 10 10 10 10 10 10 10 10 10 10 Cetaaryl glucoside (parts by weight) 0 0 0 0 0 0 0 0 0 0 5 0 Number of non-uniform pore specimens (Condition 1) 0 0 One 0 8 0 3 28 0 0 0 0 Number of non-uniform pore specimens (Condition 2) 0 8 14 0 33 13 19 44 0 0 0 0 Number of non-porous specimens (Condition 1) One 0 0 18 0 0 0 16 0 86 0 100 Wash fastness 10 10 15 3 26 15 18 30 6 0 0 0

As can be seen from Table 1,

In the case of a polyurethane film containing polyalkylene glycol, unlike Comparative Example 1, it can be seen that micropores are generated after immersion in water. However, in the case of some examples, it can be seen that the specimens with almost no pores are increased even when immersed in water, and the sweating fabrics according to Examples 4, 8 and 10 are expected to have insignificant diet effect due to less dissolution of the diet composition. do.

<Experimental Example 2>

The diet effect on sweat clothes according to Example 1 and Comparative Example 1 was evaluated. Specifically, 20 men and 20 women with a waist circumference of 90 cm for men and 85 cm or more for women were selected based on adults. Thereafter, 10 men/10 women were allowed to wear the sweat suit according to Example 1, and the rest of the men and women were made to wear the sweat suit according to Comparative Example 1.

The same exercise schedule was applied to each of the men and women through a professional trainer, and they exercised 1 hour per week 3 times a week for 3 months. In the case of food, they were allowed to consume at an appropriate level without overeating or fasting for 3 months. After 3 months elapsed, waist circumference and weight were measured for each evaluator, and the degree of reduction compared to waist circumference and weight before each evaluation was calculated as a percentage and shown in Table 2.

Example 1 Comparative Example 1 Male (10 persons)/Female (10 persons) Average weight (kg) 80.3 / 62.5 82.4 / 61.0 Percentage of people who lost less than 3% of their weight after evaluation (%) 10 20 Percentage of people who lost more than 10% of their weight after evaluation (%) 65 40 Average reduction rate of waist circumference (%) 4.1 2.7

As can be seen from Table 2, it can be seen that the evaluator wearing the sweat suit according to Example 1 has a remarkable diet effect compared to the evaluator wearing the sweat suit according to Comparative Example 1.

Although an embodiment of the present invention has been described above, the spirit of the present invention is not limited to the embodiment presented in the present specification, and those skilled in the art who understand the spirit of the present invention can add components within the scope of the same idea It will be possible to easily propose other embodiments by changing, deleting, adding, etc., but it will be said that this is also within the scope of the present invention.

Claims (7)

fabric; And
Sweat-wear fabric containing a diet composition comprising a; polyurethane coating layer provided on one side of the fabric containing the composition for diet. The method of claim 1,
The diet composition comprises as an active ingredient an extract for three or more kinds of cheongyeon products selected from the group consisting of gwonbaek, cinnamon, adlay, upper limb, fennel, green tea, licorice and rhubarb. The method of claim 1,
The polyurethane coating layer is formed by laminating a polyurethane film including a polyurethane resin, a diet composition, and a polyalkylene oxide having a weight average molecular weight of 4,000 to 10,000 on one side of the fabric and then processing high frequency. The method of claim 3,
The diet composition is a sweat fabric, characterized in that supported on hollow silica. The method of claim 3,
The polyurethane film is a fabric for sweat, characterized in that it contains 10 to 30 parts by weight of polyalkylene oxide based on 100 parts by weight of the polyurethane resin. The method of claim 3,
The polyurethane film further comprises 5 to 10 parts by weight of cetaaryl glucoside based on 100 parts by weight of the polyurethane resin. The method of claim 5,
The polyalkylene oxide is a fabric for sweat, characterized in that it comprises a polyethylene oxide and polybutylene oxide 1: 0.4 ~ 0.6 weight ratio.