KR101563323B1 - Manufacturing method of breast bouncy improvement patch therof - Google Patents

Abstract

The present invention relates to a patch for alleviating a stretch mark manufactured by using a skin temperature sensitive hydrogel and a method for manufacturing the same wherein skin temperature sensitive functional hydrogel is applied to the patch and the patch can alleviate a stretch mark when attached to the stretch mark. The patch comprises a urethane film, nonwoven fabric, the functional hydrogel, and a release film. The hydrogel comprises polyacrylic acid, glycerin, water, sodium hydroxide, agar, and polysorbate60. The functional material is obtained by mixing two or more from SEPILIFT DPHP, REGU-STRETCH, a pomegranate extract, a grape extract, an apple extract, a Phaseolus aureus extract, a Corni fructus extract, and a Undaria pinnatifida sporophyll extract. The functional hydrogel includes 95.2-97.2 wt% of the hydrogel and 2.8-4.8 wt% of the functional material.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a skin-temperature-sensitive hydrogel,

The present invention relates to a patch for improving stretch marks using a skin temperature responsive hydrogel, which is capable of improving the stretchability of the skin when the patch is applied to a patch, and to a method for producing the same.

The skin surrounding the human body is very elastic, but when the subcutaneous body tissue, muscle or fat, suddenly expands quantitatively, the skin can tear and fail to follow the rate of expansion. The skin such as thighs or abdomen can not follow the swelling rate of the subcutaneous body tissue, and the symptoms of thinly split or torn are often referred to as 'stretch marks'.

Stretch marks are also commonly referred to as stretch marks and are sometimes referred to in medical terms as 'striae distensae' or 'dilated ancestors'. The stretch marks are atrophic linear band lesions that appear on the skin at the site damaged by the pulling force.

Histologically, the epidermis is atrophied, the dermis is tapered and the collagen fibers are rearranged parallel to the skin. Early lesions appear to have a red line or a band on their skin. If you look closely, they look a bit darker than your normal skin and feel rugged when touched. These lesions are called purple ancestors (striae rubra). The purple ancestors gradually turn white as time goes by, becoming less pronounced, becoming wrinkled and shrunken skin, which is called the white ancestor (striae alba).

Stretch marks are usually red or white in color during the initial or ongoing stages and over time the color changes to a white or milky line. The white line marks are different from the surrounding normal skin and color Therefore, the appearance of the skin looks unpleasant.

The stretch marks are mainly on the arms, thighs, abdomen, buttocks, groin grooves, but also on the face, and stretch marks due to Cushing's syndrome may occur on the skin of the folded area. Also, stretch marks due to pregnancy are common in the abdomen and breasts. The stretch marks of obese patients tend to be less pronounced, less stomach, and more narrow than the stretch marks of Cushing's syndrome patients. In large-sized stretch marks, ulcers sometimes occur or skin cracks occur.

On the other hand, stretch marks are caused by the increase of adrenocortical hormone in the body due to physiological or pathological factors, collagen and elastin fibers in the dermal layer are sensitive to destruction, or collagen growth rate can not follow the rapid growth of muscle have. That is, stretch is a protein belonging to collagen due to physiological and physical factors, and is a phenomenon that the collagen fiber of the skin dermis layer, which is the main component of the connective tissue of the skin, is broken or the elastin is lost, It is expressed.

The types of stretch marks include the effects of adrenocortical hormones secreted to protect the fetus during pregnancy, and the pregnancy-induced stretch, adrenal cortex, which occurs when the skin enlarges due to the growth of the fetus or suddenly decreases after the birth. There are stretch marks caused by excessive stretching of the hormone, stretch due to obesity and diet, endocrine disease, chronic wasting disease, long-term use of steroids, excessive muscle exercise or stretching. It is more appropriate to say "improvement effect" than to treat because medicine is almost impossible to recover a round.

Stretch marks are likely to be cured early in development, but it is difficult to expect a satisfactory therapeutic effect after it has turned white. Conventionally, as a method of treating stretch marks (inflated ankles) at an early stage, there have been a method of treating using a Versa pulse laser or a method of applying retinoid acid to a site where an inflated ancestor has been developed.

In addition, as a method of treating late-stage expansion arteriosus, retinoic acid was applied for several months while thinning the epidermis using a carbon dioxide gas laser (Ultrapulse CO2 laser) or an Erbium-YAG laser, Stimulation of fibroblasts to promote remodeling of collagen. However, such a conventional treatment method of swollen filament treatment requires a treatment time of 6 months to 1 year, and it is difficult to show an improvement rate of 50% or more even after treatment, and in some cases, it may cause side effects such as erythema and pigmentation.

[ Prior Art Literature ]

[ Patent Literature ]

Korean Patent Publication No. 10-2013-0025002 (March 31, 2013)

Korean Patent Publication No. 10-2009-0022599 (Mar. 4, 2009)

Korean Patent Publication No. 10-2009-0108847 (Oct. 19, 2009)

The present invention relates to a skin temperature-sensitive hydrogel capable of improving skin elasticity, which is applied to a patch to improve the stretch of the skin when the patch is attached to the stretch of the human body. In addition, The present invention provides a patch for improving stretch marks using a skin temperature responsive hydrogel in which a functional material to be improved is continuously eluted.

According to an aspect of the present invention, there is provided a method of manufacturing a nonwoven fabric, comprising the steps of: applying an adhesive (15) to one surface of a urethane film (10);

Preparing a functional hydrogel (25) by mixing a hydrogel with a functional material having an effect of improving stretch marks;

Applying the functional hydrogel to the surface of the nonwoven fabric (20) or one side surface of the release film (30), then bringing the functional hydrogel in close contact with the nonwoven fabric and the release film to form a patch sheet;

Drying the patch sheet after heat treatment to form the functional hydrogel as a semi-solid functional hydrogel;

Cutting the patch sheet having the semi-solid state of the functional hydrogel (25) into a shape corresponding to the application site of the human body; A stretch back patch is manufactured,

The hydrogel for preparing the functional hydrogel is composed of polyacrylic acid, glycerin, water, sodium hydroxide, agar and polysorbate 60. The functional material is SEPILIFT DPHP, REGU-STRETCH, pomegranate extract, grape extract, apple extract, mung bean extract A mixture of hydrogel and functional material is 95.2 - 97.2% by weight of hydrogel and 2.8 - 4.8% by weight of functional material.

The step of dyeing or silk printing the selected color on the urethane film or the nonwoven fabric before the urethane film 10 and the nonwoven fabric 20 are adhered is further added to colorize the stretch-back improvement patch, 5 to 15% by weight of acid, 10 to 40% by weight of glycerin, 1 to 10% by weight of sodium hydroxide, 0.1 to 3% by weight of Agar, 0.1 to 3% by weight of Polysorbate 60 and the balance of water.

In addition, the stretch-improving patch may further comprise at least one of hydrogel 95.2 to 97.2 wt%, SEPILIFT DPHP 1 to 1.5 wt%, pomegranate extract 0.5 to 1 wt%, grape extract 0.5 to 1 wt%, apple extract 0.5 to 1 wt% The composition according to any one of claims 1 to 3, wherein the composition has a composition ratio of 0.1% by weight of the extract of corn oil, 0.1% by weight of the extract of Safflower extract, 0.1% , SEPILIFT DPHP 0.5 - 1 wt.%, Or a mixture of hydrolyzate 95.2 - 97.2 wt.%, SEPILIFT DPHP 0.5 - 1 wt.%, Apple extract 0.3 - 0.5 wt.%, Mung bean extract 0.1 wt. , REGU-STRETCH 1.7-2 wt%, pomegranate extract 0.1-0.5 wt%, grape extract 0.1-0.5 wt%, apple extract 0.1-0.5 wt%, mung bean extract 0.1 wt%, corn oil extract 0.1 wt. %.

The semi-solid state of the functional hydrogel is formed by aging the mixture at 50 to 80 ° C for 2 to 4 days, and then aging the functional hydrogel for 1 to 3 days.

The stretch-improving patch using the skin temperature-responsive hydrogel of the present invention produced by the above-described method has the effect of relaxing the stretch marks when attached to the stretch marks, and has no side effects even if it is used for a long time, It is possible to achieve the effect of improving the stretch marks due to the continuous elution of the functional substance.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a process drawing showing a method for manufacturing a stretch improvement patch of the present invention,
FIG. 2 is a sectional view for explaining the configuration of the stretch improvement patch of the present invention,
FIG. 3 is a graph showing the effect of improving the stretch marks of REGU-STRETCH used in the present invention,
4 is a graph showing test results of a patch manufactured by the method of the present invention.

As shown in FIG. 1, the method of manufacturing a stretch patch for improving skin temperature sensitive hydrogels according to the present invention comprises the steps of applying an adhesive 15 to one surface of a urethane film 10 and then bonding the nonwoven fabric 20 thereto; Preparing a functional hydrogel (25) by mixing a hydrogel with a functional material having an effect of improving stretch marks; Applying the functional hydrogel to the surface of the nonwoven fabric (20) or one side surface of the release film (30), then bringing the functional hydrogel in close contact with the nonwoven fabric and the release film to form a patch sheet; Drying the patch sheet after heat treatment to form the functional hydrogel as a semi-solid functional hydrogel; Cutting the patch sheet having the semi-solid state of the functional hydrogel (25) into a shape corresponding to the application site of the human body; A stretch back patch is manufactured,

The hydrogel for preparing the functional hydrogel is composed of polyacrylic acid, glycerin, water, sodium hydroxide, agar and polysorbate 60. The functional material is SEPILIFT DPHP, REGU-STRETCH, pomegranate extract, grape extract, apple extract, mung bean extract A mixture of hydrogel and functional material is 95.2 - 97.2% by weight of hydrogel and 2.8 - 4.8% by weight of functional material.

Hereinafter, the efficacy of the skin temperature-responsive hydrogel according to the present invention will be described.

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1) SEPILIFT DPHP is a dipalmitoyl hydroxyproline which is a biological substance extracted from plant by fusing fatty acid (palmitic acid) to amino acid (hydroxyproline) and restructuring the skin tissue by long moisturizing and elastic action. And protects the dermal fibrous tissue at the same time.
◆ For reference, SEPILIFT DPHP,
Ingredients: SEPILIFT DPHP
Manufacturer: Seppic (Frings)
INCI name: Dipalmitoyl Hydroxyproline.

2) REGU-STRETCH has a stretch-care effect, which allows a 30-year-old white woman over 18 years of age with stretch marks to use a formalin containing 3% REGU-STRETCH for about 3 months (84 days) As a result of checking the depth, width and dermis density of the stretch marks, the depth and width of the stretch marks were reduced and the densities of the skin tissues became more dense, as shown in Fig.
◆ For reference, REGU-STRETCH,
Ingredients: REGU-STRETCH
Manufacturer: Pentapharm (Switzerland)
INCI name: Panthenol, an extract of Marrubium vulgare, is palmitoyl tripeptide-5.

3) Pomegranate has various effects from antimicrobial action, anti-inflammatory action, antiviral action and action to suppress skin damage due to ultraviolet rays due to vegetable polyphenol components such as ellagitannins and anthocyanins. It is also known to help regenerate the dermis and to inhibit cell damage and immune degradation,

In a report in the on-line academic journal 'Comprehensive Reviews of Food Science and Food Safety', J. A. Perez-Alvarez, a researcher at the Miguel Hernandez University School of Agriculture in Spain,

4) Grape is rich in vitamin E, an antioxidant, and linoleic acid, an essential fatty acid. It has antioxidant effect due to linoleic acid, which is contained in many nuts such as peanuts and walnuts, and contains vitamins E It is used for various cosmetic products such as lotion, shower gel and soap. It has excellent cleaning effect to wash into the pores. It is well-soluble in water and is not sticky to the skin, so it is popular for cleansing. Is high.

5) Apples are rich in vitamin C, vitamin A, thiamin, pectin, citric acid and potassium, so they are very good for coarse dry skin. They also improve skin regeneration, elasticity and color, and prevent skin trouble .

6) Mungdu is an annual plant belonging to the legume. It is composed of vitamins, proteins, carbohydrates and essential essential oils. It has been used for centuries as a herbal medicine. Today, it is effective in the treatment of dermatitis. It is becoming popular as an anti-acne agent.

7) Corn oil is a fruit of Cornus, a Cornaceae plant, which is slightly warm, tasteless and poisonous. It makes the yin (阴) to be active, to see the Shinjung [精] and the shinji (肾气), to increase the sexual function, and to make the penis bigger and bigger. It also helps the waters and the knees warm and helps the waters. He heals the frequent urination, heals the old man without peeing, and heals the breeze and snoring and deafness. In addition, it contains 15% or more of saponin, so it has excellent convergence effect and also has excellent effect of removing harmful oxygen, thereby improving skin.

8) It is a hard part attached to the western part of the seaweed, and it is high in content of hyaluronic acid, fucoidan, amino acid alginic acid, etc., and it is rich in minerals such as potassium and calcium and the above fucoidan activates immunity, .

One embodiment of the method for extracting effective ingredients for obtaining the efficacy of stretch marks of the present invention in each of the plants 3) to 8) will be described below.

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Each of the obtained plants is washed, and the washed water is dried and pulverized. Then, the pulverized herbal plant is extracted with methanol as a solvent to extract an effective component of the plant.

The extract is concentrated under reduced pressure, distilled water is added to the concentrate, and the concentrate is concentrated by azeotropy to remove methanol as the solvent.

The methanol extract-removed extract was suspended in distilled water 3 to 4 times by weight of the solvent and suspended in ethyl acetate of 3 to 4 times by weight of the suspension. After stirring, the mixture was allowed to stand for layer separation. The ethyl acetate fraction ≪ / RTI >

The ethyl acetate fraction obtained was washed with distilled water containing 1 - 2% NaCl 3 to 4 times by weight, and the washed ethyl acetate fraction was added to n-hexane 3 to 5 times by weight, Allow time.

The precipitated fraction generated after the standing is washed with n-hexane, filtered, vacuum-dried, and pulverized.

The polar organic solvent in the organic solvent may include at least one organic solvent selected from the group consisting of dichloromethane, chloroform, 1-butanol, 1- pentanol, 1-hexanol, cyclohexanol, 1-dodecanol, diethyl ether, tetrahydrofuran, Ethyl acetoacetate, ethyl benzoate or a mixed solvent thereof may be used.

As the nonpolar organic solvent, n-hexane, cyclohexane, n-pentane, n-octane, petroleum ether, toluene or a mixed solvent thereof may be used.

Hereinafter, the method for producing the stretch-improving patch of the present invention using the extracts 1) to 6) of the present invention will be described in detail as follows.

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a) bonding the nonwoven fabric to one side of the urethane film

The step a) of the present invention is a step of applying the adhesive 15 to one surface of the urethane film 10 and then bonding the nonwoven fabric 20 as shown in Fig. 2, and the reason for using the urethane film 10 , It is safe for the skin, it can be deformed according to the bending shape, and it suppresses the evaporation of water.

The reason why the nonwoven fabric 20 is used is that it maintains a close contact force with the skin and is safe to the skin and does not sufficiently deform the skin temperature responsive hydrogel of the present invention even when stored for a long period of time .

In order to colorize the patch improvement patch of the present invention, the urethane film 10 and the nonwoven fabric 20 may be stained or silk printed in a color selected from the urethane film or the nonwoven fabric before the adhesion.

b) preparing a skin temperature responsive hydrogel

Step (b) of the present invention is a step of preparing a functional hydrogel having a stain-improving effect of the present invention, which is a main characteristic content of the present invention and will be described separately below.

c) preparing a skin temperature responsive hydrogel

In the step c) of the present invention, after the functional hydrogel is applied to the surface of the nonwoven fabric 20 or the one surface of the release film 30, the functional hydrogel is placed between the nonwoven fabric and the release film As a step of producing a patch sheet, a method of closely contacting the release film with the non-woven fabric coated with the functional hydrogel on the one side is applied to the release film 30 and the nonwoven fabric 20 using a rolling machine.

d) Formation of Functional Hydrogel Semi-Solid State of Patch Sheet

In step d) of the present invention, the patch sheet is dried after heat treatment to form the functional hydrogel 25 as a semi-solid functional hydrogel. In one embodiment, the semi-solid state of the functional hydrogel is formed by 50 To 80 ° C for 2 to 4 days, and then the aged functional hydrogel is dried for 1 to 3 days.

The functional hydrogels existing between the nonwoven fabric 20 and the release film 30 are aged at 50 to 80 ° C. for 2 to 4 days and then dried for 1 to 3 days to form a semi-solid functional hydrogel This is because it does not flow out during distribution or storage.

The reason for aging at 50 ~ 80 ° C for 2 ~ 4 days is that hydrogels composed of Polyacrylic acid, Glycerin, Water, Sodium hydroxide, Agar and Polysorbate 60 and boric acid, Boripyrin, Rich fruit extract, Peony root extract, Grape extract, Extract, green tea extract, or the like, and is aged by the action of an enzyme or a microorganism of a functional material mixed with at least two of the green tea extract.

e) Patch sheet cutting step

The step e) of the present invention is a step of cutting the patch sheet in which the functional hydrogel 25 is in a semi-solid state to a shape conforming to the application site (female chest or hips) of the human body, which is applied to the human body part of the stretchy part It is to be cut to be able to do.

The skin temperature responsive hydrogel according to the present invention, which is the skin temperature responsive hydrogel according to the present invention, is manufactured as follows.

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The functional hydrogel of the present invention is characterized in that the hydrogel is composed of Polyacrylic acid, Glycerin, Water, Sodium hydroxide, Agar and Polysorbate 60 and the functional material is SEPILIFT DPHP, REGU-STRETCH, Pomegranate extract, Grape extract, Mung bean extract, corn oil extract, and mugwort extract,

The mixing ratio of the hydrogel and the functional material is 95.2 to 97.2% by weight of the hydrogel and 2.8 to 4.8% by weight of the functional material.

The Polyacrylic acid, Glycerin, Water, Sodium hydroxide, Agar and Polysorbate 60 constituting the hydrogel are conventional techniques used to produce a stretch patch, and a detailed description thereof will be omitted. The composition of one embodiment is Polyacrylic 5 to 15% by weight of acid, 10 to 40% by weight of glycerin, 1 to 10% by weight of sodium hydroxide, 0.1 to 3% by weight of Agar, 0.1 to 3% by weight of Polysorbate 60 and the balance of water.

Meanwhile, the functional material is a mixture of at least two of SEPILIFT DPHP, REGU-STRETCH, pomegranate extract, grape extract, apple extract, mung bean extract, , The effect described in the above 1) to 8) is exerted in the patch of the present invention.

The mixing ratio of the hydrogel and the functional material is 95.2 to 97.2% by weight of the hydrogel and 2.8 to 4.8% by weight of the functional material. The reason why the functional material is 2.8 to 4.8% Since the efficacy of improving the stretch marks differs depending on the extract, it is intended to standardize the application of the different stretch improvement effect to the patch of the present invention.

If the functional material is used in an amount less than 2.8% by weight, the effect of improving the stretch marks is insignificant. If the functional material is used in an amount exceeding 4.8% by weight, the effect of improving the stretch marks may be good, but the performance of the functional hydrogel may be deteriorated, Is 95.2 to 97.2% by weight of the hydrogel, and 2.8 to 4.8% by weight of the functional material.

The collagen synthesis promoting effect measurement for determination of the extract concentration of each plant used to produce the stretch patch of the present invention is as follows.

- Test method: In order to examine the effect of collagen synthesis to test skin elasticity improvement, human fibroblasts were seeded at 1 × 10 ⁴ cells / well in a 96-well plate and cultured for 24 hours in 10% FBS / DMEM medium. The diluted samples were added to the medium and incubated for 24 hours in a CO ₂ incubator.

The amount of collagen was measured using the Procollagen Type C-peptide ELA kit. After measuring the absorbance at 450 nm, a standard concentration curve was prepared and the amount of collagen was calculated.

 Mung bean extract 0.15% 0.5% 1.0% Increasing rate of collagen synthesis (%)
7.2 2.4%
7.6 1.4%
8.1 2.1%

Corn oil extract 0.15% 0.5% 1.0% Increasing rate of collagen synthesis (%)
8.4 1.1%
8.7 2.1%
9.2 1.0%

Exudate extract 0.15% 0.5% 1.0% Increasing rate of collagen synthesis (%)
10.4 0.8%
10.9 1.9%
11.4 1.2%

Pomegranate extract 0.15% 0.5% 1.0% Increasing rate of collagen synthesis (%)
8.1 1.2%
17.4 1.1%
18.4 1.6%

Grape extract 0.15% 0.5% 1.0% Increasing rate of collagen synthesis (%)
3.7 2.2%
10.4 1.5%
10.7 0.8%

Apple extract 0.15% 0.5% 1.0% Increasing rate of collagen synthesis (%)
4.9 2.7%
13.6 1.7%
14.2 0.6%

When the extracts of pomegranate extract, grape extract and apple extract were contained at a concentration of 0.5% or more, and the extracts of mung bean, corn oil, and mugwort extract were contained at concentrations of 0.1-1.0% When 0.1% or more was contained, the effect of collagen synthesis was high.

Table 7 below shows examples of the compositions used to prepare the patch for improving stretch marks of the present invention.

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Raw material name Example 1 (%) Example 2 (%) Example 3 (%) Example 4 (%) SEPILIFT DPHP One - One - REGU-STRETCH - 2 2 - Pomegranate extract 0.5 0.5 0.5 - Grape extract 0.5 0.5 0.5 - Apple extract 0.5 0.5 0.5 - Mung bean extract 0.1 0.1 0.1 - Corn oil extract 0.1 0.1 0.1 - Exudate extract 0.1 0.1 0.1 - D.W 97.2 96.2 95.2 100 Sum 100 100 100 100

※ Measurement of promoting collagen synthesis

- Test method: In order to examine the effect of collagen synthesis to test skin elasticity improvement, human fibroblasts were seeded at 1 × 10 ⁴ cells / well in a 96-well plate and cultured for 24 hours in 10% FBS / DMEM medium. The diluted samples were added to the medium and incubated for 24 hours in a CO ₂ incubator.

The amount of collagen was measured using the Procollagen Type C-peptide ELA kit. After measuring the absorbance at 450 nm, a standard concentration curve was prepared and the amount of collagen was calculated.

Test results: Collagen, a major component of the extracellular matrix, is a major substrate protein produced by the fibroblasts of the skin that forms most of the organic matter in the skin, tendons, bones and teeth, It has the functions of tissue resistance and tissue binding force, support of cell adhesion, induction of cell division and differentiation. Collagen (types I, II, III, IV and V) are synthesized in the form of precursors called procollagen.

Procollagen comprises a peptide base sequence called a propeptide at the amino terminus and at the carboxy terminus. The function of the propeptide is known to help folding the procollagen molecule in the endoplasmic reticulum and to cleave and separate from the collagen molecule when the collagen polymerization occurs.

 Therefore, by measuring the amount of the pro peptide, the degree of collagen biosynthesis in the cell can be grasped. Collagen is closely related to the formation of stretch marks, and when collagen is deficient, stretch marks can be induced. The test results are shown in Table 8 and FIG. 4 below.

Example 1 Example 2 Example 3 Increasing rate of collagen synthesis (%) 31.20.7% 32.72.1% 49.40.9%

The patch for improving stretch marks using the skin temperature responsive hydrogel according to the present invention has the effect of relaxing the stretch marks when attached to the stretch marks, The effect of improving the stretch marks can be achieved due to the continuous elution of the functional substance.

10: urethane film 15: Adhesive
20: Nonwoven fabric 25: Hydrogel
30: release film

Claims (8)

Applying an adhesive (15) to one side of the urethane film (10) and then bonding the nonwoven fabric (20);
Preparing a functional hydrogel (25) by mixing a hydrogel with a functional material having an effect of improving stretch marks;
Applying the functional hydrogel to the surface of the nonwoven fabric (20) or one side surface of the release film (30), then bringing the functional hydrogel in close contact with the nonwoven fabric and the release film to form a patch sheet;
Drying the patch sheet after heat treatment to form the functional hydrogel as a semi-solid functional hydrogel;
Cutting the patch sheet having the semi-solid state of the functional hydrogel (25) into a shape corresponding to the application site of the human body; A stretch back patch is manufactured,
The hydrogel for preparing the functional hydrogel is composed of polyacrylic acid, glycerin, water, sodium hydroxide, agar and polysorbate 60. The functional material is SEPILIFT DPHP, REGU-STRETCH, pomegranate extract, grape extract, apple extract, mung bean extract Wherein the mixture of the hydrogel and the functional material is 95.2 to 97.2% by weight of hydrogel and 2.8 to 4.8% by weight of the functional material. Method for manufacturing stretch improvement patches using hydrogels. The method according to claim 1,
Wherein the step of dyeing or silk printing a selected color is further added to the urethane film or the nonwoven fabric before the urethane film (10) and the nonwoven fabric (20) are adhered for coloring the stretch-back improvement patch Method for manufacturing stretch improvement patches using hydrogels. The method according to claim 1,
Wherein the hydrogel comprises 5 to 15 wt% of polyacrylic acid, 10 to 40 wt% of glycerin, 1 to 10 wt% of sodium hydroxide, 0.1 to 3 wt% of Agar, 0.1 to 3 wt% of Polysorbate 60, Method of manufacturing stretch improvement patch using temperature sensitive hydrogel. The method according to claim 1,
The stretch improvement patch comprises 95.2 to 97.2 wt% of hydrogel, 1 to 1.5 wt% of SEPILIFT DPHP, 0.5 to 1 wt% of pomegranate extract, 0.5 to 1 wt% of grape extract, 0.5 to 1 wt% of apple extract, 0.1 wt %, 0.1% by weight of a crude oil extract, and 0.1% by weight of an undiluted extract. The method according to claim 1,
The stretch improvement patch comprises at least one of hydrogel 96.2 to 97.2 wt%, REGU-STRETCH 1.6 to 2 wt%, pomegranate extract 0.3 to 0.5 wt%, grape extract 0.3 to 0.5 wt%, apple extract 0.3 to 0.5 wt%, mung bean extract 0.1 , 0.1% by weight of an extract of corn oil, 0.1% by weight of an extract of a southern hemisphere. The method according to claim 1,
The stretch improvement patch comprises at least one of hydrogel 95.2 to 97.2 wt% SEPILIFT DPHP 0.5 to 1 wt% REGU-STRETCH 1.7 to 2 wt% pomegranate extract 0.1 to 0.5 wt% grape extract 0.1 to 0.5 wt% apple extract 0.1 - 0.5 wt.%, Mung bean extract 0.1 wt.%, Corn oil extract 0.1 wt.% And nematode extract 0.1 wt.%. The method according to claim 1,
The semi-solid state of the functional hydrogel is aged at 50 to 80 ° C for 2 to 4 days and then the aged functional hydrogel is dried for 1 to 3 days. Improved patch manufacturing method. A stretch improvement patch using a skin temperature responsive hydrogel produced by the method of any one of claims 1 to 7.

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