KR102211409B1 - Cosmetic composition for preventing damage of skin by heat - Google Patents

Abstract

The present invention relates to a cosmetic composition for adjusting a skin temperature, which contains silk powder and plant extracts as active ingredients and is capable of preventing skin damage by heat. More specifically, the present invention relates to a cosmetic composition for adjusting a skin temperature, which comprises, as an active ingredient, at least one among the silk powder, a passion flower extract, and a bamboo extract. According to the present invention, the cosmetic composition for adjusting a skin temperature is capable of suppressing skin aging and skin troubles caused by heat by adjusting the skin heat that is increased by external environments, such as ultraviolet rays, infrared rays, and the like.

Description

Cosmetic composition for preventing skin damage caused by heat {COSMETIC COMPOSITION FOR PREVENTING DAMAGE OF SKIN BY HEAT}

The present invention relates to a cosmetic composition for preventing skin damage by heat containing silk powder and plant extracts as active ingredients, and more particularly, to heat containing at least one of silk powder, passionflower extract and bamboo extract as an active ingredient. It relates to a cosmetic composition for controlling skin temperature having an effect of preventing skin damage caused by.

Skin has a primary function and cosmetic function that protects our body from the external environment. In addition, cosmetic products have an aesthetic function to clean or beautifully express human skin and a protective function to protect the skin from harmful environments. The role of the skin declines due to various harmful environments (ultraviolet rays, increase in irradiation, air pollution, stress, etc.). Cosmetics are caused by highly reactive active oxygen, free radicals, and peroxides caused by these harmful factors. It not only improves troubles, but also protects the skin and helps the skin maintain its normal function.

Skin aging can be largely divided into endogenous aging and photoaging. Endogenous aging refers to an aging phenomenon that cannot be avoided over time, and photoaging refers to aging phenomena observed on the skin such as the face, the back of the hand, and the back of the neck that have been exposed for a long time by environmental factors such as sunlight, cold, and wind. Say. Compared to endogenous aging, photoaging is deeply related to skin changes such as rough wrinkles, pigmentation, loss of skin elasticity, and skin cancer, but avoiding exposure to ultraviolet rays can prevent this. When the temperature of the skin increases due to external factors such as ultraviolet rays and infrared rays, various enzymes in the skin are affected and phenomena such as skin redness and skin dryness may occur, and problems such as skin cell damage may occur. In order to stay healthy, it is necessary to remove these external and internal factors.

As a composition having a property of controlling skin heat by applying to the conventional skin, Korean Patent No. 10-0784238 contains 30 to 80% by weight of an aerosol stock solution and 20 to 60% by weight of an aerosol propellant based on the total weight of the composition, The aerosol stock solution is at least one selected from the group consisting of hydroxyethylcellulose, hydroxypropylmethylcellulose, hydroxypropylcellulose, hydroxypropylgua, and xanthan gum, and the aerosol propellant is hydrofluorocarbon, dimethyl ether, A cosmetic composition for skin cooling, characterized in that at least one selected from the group consisting of propane, n-butane, isobutane and isopentane, has been proposed.

Korean Patent Laid-Open Publication No. 10-2018-84165 discloses a thermal responsiveness (Thermo) comprising a phosphorus interpenetrating polymer network containing chitosan or hydrogel, which is liquid at approximately room temperature and solid at a temperature higher than approximately core body temperature. -responsive) polymer and at least one additional cooling component, such as menthol, menthol derivative, menthyl lactate, menthyl salicylate, menthyl acetate, menthyl PCA, menthyl carbinol, methyl linalool, isoeugenol, methyl eugenol, menthyl Glycerol ketal, menthoxypropane-1,2-diol, (-)-isofulegol, cubebol, N-substituted p-mentanecarboxamide, isillin, mint, mentha oil, cucumber, chamomile, aloe, comfrey, anise , Sage, carboamide, ketal, carboxamide, cyclohexanol derivative, cyclohexyl derivative, fluorinated hydrocarbon, fluorinated ether, low molecular weight grade dimethicone, volatile cyclomethicone Is proposed.

The cosmetic composition for skin cooling of the Korean Patent Registration No. 10-0784238 cools the skin by slowing the vaporization rate of the cooling gas by forming a gel from the sprayed contents, and applying the skin according to the Korean Patent Publication No. 10-2010-84165 The cooling composition for cooling causes a phase change when experiencing transient body heat, high heat, exposure to a very warm environment, physical exercise, etc., thereby causing a cooling or cold feeling of the skin.

In addition, Korean Patent Registration No. 10-1697235 proposes a cosmetic composition for controlling skin temperature containing 0.00001 to 20% by weight of a hibiscus extract.

Accordingly, the present inventors were researching natural materials that can control these phenomena in order to prevent and improve skin aging due to increased skin temperature due to ultraviolet rays, infrared rays, etc., and found that silk powder and plant extracts are suitable, When a cosmetic containing this was prepared and applied to human skin, it was confirmed that the effect of preventing skin damage or aging due to heat by actually controlling the temperature increase of the skin is excellent. Accordingly, an object of the present invention is to provide a cosmetic composition for controlling skin temperature comprising silk powder and plant extracts as active ingredients.

The present invention relates to a cosmetic composition for controlling skin temperature, comprising as an active ingredient one or more plant extracts selected from the group consisting of silk powder, and passionflower extract and bamboo extract.

Preferably, the silk powder and the plant extract may be contained in a weight ratio of 5-10:1.

Preferably, the plant extract may be a mixed extract obtained by mixing a passionflower extract and a bamboo extract in a weight ratio of 1 to 3:3 to 1.

Preferably, the silk powder is contained in an amount of 0.1% to 20% by weight, and the plant extract may be contained in an amount of 0.0001% to 20% by weight based on the total weight of the cosmetic composition.

By containing the silk powder and at least one plant extract of the present invention as an active ingredient, there is an effect of preventing heat aging by controlling the heat reaching rate that may be generated by ultraviolet rays or infrared rays. In addition, by applying a cosmetic composition for controlling skin temperature including the silk powder and plant extract to the skin, it is possible to reduce the temperature of the skin to prevent skin damage and skin aging due to heat.

All technical terms used in the present invention, unless otherwise defined, have the following definitions and correspond to the meanings as commonly understood by one of ordinary skill in the relevant fields of the present invention. In addition, although preferred methods or samples are described in the present specification, those similar or equivalent are included in the scope of the present invention.

The term “about” refers to 30, 25, 20, 15, 10, 9, 8, 7, 6, 5, or 30, 25, 20, 15, 10, 9, 8, 7, 6, 5, or relative to a reference amount, level, value, number, frequency, percentage, dimension, size, amount, weight or length. It means an amount, level, value, number, frequency, percentage, dimension, size, amount, weight or length varying by 4, 3, 2 or 1%.

Throughout this specification, unless otherwise required by the context, the terms “comprise” and “comprising” include the steps or components presented, or groups of steps or components, but any other step or component, or It is to be understood that a step or group of components is not excluded.

The present invention relates to a cosmetic composition for controlling skin temperature, comprising as an active ingredient one or more plant extracts selected from the group consisting of silk powder, and passionflower extract and bamboo extract.

Since the cosmetic composition of the present invention contains silk powder and plant extract, it imparts a function of suppressing skin aging due to heat by limiting the increase in temperature of the skin that may occur due to ultraviolet rays or infrared rays.

According to an embodiment of the present invention, the plant extract is characterized in that at least one selected from the group consisting of passionflower extract and bamboo extract.

The silk powder used in the present invention refers to powdered silk. The silk (silk) refers to a fiber obtained from the cocoon made by silkworms, and collectively refers to a product made of silk yarn made of this as a raw material. In a broader sense, it is sometimes referred to include yajamsa such as jakjamsa and silk products made from silk yarn. True silk, commonly referred to as dog, is also referred to as cultivated or domestic silk. Silk fibers are made of fibroin and sericin, and contain a small amount of brain, fat and inorganic salts, and colored cocoons contain pigments.

There is a pair of thread glands in the silkworm's body, which is made up of about 1,000 cells. Silkworms eat mulberry and synthesize silk protein, that is, liquid dog, through nutrition of the protein and carbohydrates of mulberry. These glands are anatomically divided into three, and they have different functions. And the pair of thread springs are merged into one soil hole to form a soil hole. The liquid dog, which is stored in the form of jelly in the thread gland, barks the cocoon while forming a cocoon thread by the silkworm's thread vomiting movement. Silk fibers are composed of two-stranded fibers (fibroin) with a diameter of 10 to 20 μm, and there are thousands of nanofibers with a diameter of 100 nm in the fibroin.

The silk powder used in the present invention is a silk powder obtained by powdering fibroin obtained from silk fibers of a cocoon, and the color, sub-components, processing method and origin are not limited. The method of making silk powder is also carried out by a person skilled in the art by a conventional method, and there is no limitation on the method of making silk powder.

According to an embodiment of the present invention, the silk powder preferably has a particle size in the range of 0.1 μm to 100 μm. When the particle size of the silk powder is less than 0.1 μm, the heat blocking effect is insufficient, and when the particle size of the silk powder exceeds 100 μm, the particle size is large and the feeling of use is deteriorated when used as a cosmetic.

In addition, the silk powder may be contained in an amount of 0.1 to 20.0% by weight, more preferably 0.1 to 10.0% by weight, based on the total weight of the cosmetic. The higher the content of silk powder, the higher the heat shielding rate, but if the content of silk powder exceeds 20.0% by weight, the inherent properties of cosmetics may change or the feeling of use may decrease.If it is less than 0.1% by weight, heat shielding when the content of silk powder decreases It is not desirable because no effect can be expected.

According to an embodiment of the present invention, the cosmetic composition of the present invention comprises at least one plant extract selected from the group consisting of a passionflower extract and a bamboo extract. More preferably, it includes a mixed extract obtained by mixing the passionflower extract and the bamboo extract in a weight ratio of 1 to 3:3 to 1.

Passiflora extract used in the present invention is the scientific name Passiflora incarnate L. As a kind of in passion flower, an outpost part was used. In English, it is called Purple Passionflower, and its flower resembles the shape of a clock, so it is called Passionflower.

Its origin is the tropical and subtropical regions of North, Central and South America. The history of the fashion flower, which has been used as a folk medicine among the natives of South America, has a long history. In 1569, the Spanish doctor Monaldes discovered the fashion flower and spread it to Europe as a highly sedating herbal tea. Indigenous peoples of South America in the mid-1800s used the roots of passionflowers as tonics and their leaves to relieve pain such as bruises and headaches, and this method of use as a sedative was also spread in the United States. Passionflower has a strong sedative effect, also called "vegetable tranquilizer," and has been used for insomnia since ancient times in Europe.

The bamboo of the present invention is a generic term for perennial plants belonging to the monocotyledonous plant, Poaceae, and Bambusoideae, and in some cases, only the tall genus is called bamboo. Bamboo is distributed worldwide, but grows mainly in tropical regions and is particularly common in the monsoon regions of Asia. In Korea, it is widely distributed in sub-central regions and Jeju Island. In the case of the tall genus, it can grow up to 30m in height and 30cm in diameter. The stem is straight, round, and hollow. In general, bamboo sap is produced as a by-product while being periodically cut to help growth during the bamboo cultivation process. The composition of the ingredients varies depending on environmental factors such as the area where it is grown, the species of bamboo, and the time of harvest, but protein , Calcium, sugar and amino acids are contained, and the pH is known to be slightly acidic. The bamboo extract of the present invention means obtained from various organs or parts of bamboo (eg, leaves, flowers, roots, stems, etc.), and preferably means obtained from leaves.

The plant-derived extract of the present invention is prepared according to a conventional method known in the art, that is, under the conditions of a normal temperature and pressure, using a conventional solvent (e.g. water, an anhydrous or water-containing lower alcohol having 1-4 carbon atoms ( For example, methanol, ethanol, propanol and butanol), acetone, ethyl acetate, chloroform, butyl acetate, 1,2-butylene glycol and mixtures thereof can be obtained using one or more extraction solvents selected from the group consisting of And, preferably, it is obtained using ethanol, a 70% (v/v) aqueous ethanol solution or water, and most preferably, it is obtained using a 70% aqueous ethanol solution.

In addition, it is apparent to those skilled in the art that the plant-derived extract of the present invention can obtain an extract exhibiting substantially the same effect even when using not only the above-described extraction solvent but also other extraction solvents.

Ingredients included in the cosmetic composition of the present invention may include ingredients commonly used in cosmetic compositions in addition to the active ingredients as an active ingredient. For example, conventional ingredients such as antioxidants, stabilizers, solubilizers, vitamins, pigments and fragrances It includes an adjuvant, and a carrier.

The cosmetic composition of the present invention may be prepared in any formulation commonly prepared in the art, for example, solution, suspension, emulsion, paste, gel, cream, lotion, powder, cleansing, oil, powder foundation, It can be prepared in the form of emulsion foundation, wax foundation, sun cream, pack, shampoo, scalp pack, treatment, massage cream, and spray or powder.

When the formulation of the present invention is a paste, cream or gel, animal oil, vegetable oil, wax, paraffin, starch, tracanth, cellulose derivative, polyethylene glycol, silicone, bentonite, silica, talc, or zinc oxide may be used as carrier components. I can.

When the formulation of the present invention is a suspension, liquid diluents such as water, ethanol or propylene glycol as carrier components, ethoxylated isostearyl alcohol, suspending agents such as polyoxyethylene sorbitol ester and polyoxyethylene sorbitan ester, microcrystals Sex cellulose, aluminum metahydroxide, bentonite, agar or tracant, and the like can be used.

When the formulation of the present invention is a powder or spray, lactose, talc, silica, aluminum hydroxide, calcium silicate, or polyamide powder may be used as a carrier component. In particular, in the case of a spray, additional chlorofluorohydrocarbon, propane / May contain propellants such as butane or dimethyl ether.

When the formulation of the present invention is a surfactant containing cleansing, as a carrier component, aliphatic alcohol sulfate, aliphatic ether sulfate, sulfosuccinic acid monoester, isethionate, imidazolinium derivative, methyltaurate, sarcosinate, fatty acid amide ether sulfate , Alkylamidobetaine, aliphatic alcohol, fatty acid glyceride, fatty acid diethanolamide, vegetable oil, lanolin derivative or ethoxylated glycerol fatty acid ester, and the like may be used.

When the cosmetic composition of the present invention is a soap, a cleansing formulation containing a surfactant, or a cleansing formulation containing no surfactant, it may be applied to the skin and then wiped off, removed, or washed with water. As a specific example, the soap is liquid soap, powder soap, solid soap and oil soap, the surfactant-containing cleansing formulation is a cleansing foam, cleansing water, cleansing towel and cleansing pack, and the cleansing formulation without surfactant is a cleansing cream , Cleansing lotion, cleansing water, and cleansing gel, but is not limited thereto.

The cosmetic composition of the present invention may be used alone or in duplicate, or may be used in conjunction with other cosmetic compositions other than the present invention. In addition, the cosmetic composition according to the present invention may be used according to a conventional method of use, and the number of times of use thereof may be changed according to a user's skin condition or taste.

The cosmetic composition for controlling skin temperature using silk powder and plant extracts as active ingredients of the present invention has a characteristic of suppressing skin aging due to heat by limiting the increase in temperature of the skin that may occur due to ultraviolet rays or infrared rays.

The cosmetic composition comprising the silk powder and plant extracts of the present invention prevents skin aging due to heat by controlling the heat of the skin rising by external environments such as ultraviolet rays and infrared rays while performing a cosmetic method applied to human skin. Giving effect can be obtained.

Hereinafter, the present invention will be described in more detail through examples and experimental examples. These examples are for illustrative purposes only, and it will be apparent to those of ordinary skill in the art that the scope of the present invention is not limited by these examples according to the gist of the present invention.

Manufacturing example One: Silk powder Produce

A 3% (v/v) aqueous neutral detergent solution was added to the silk raw material, heated at 95-100° C. for 3 hours, filtered, washed with water until the neutral detergent was completely removed, and dried to obtain a degummed silk raw material. Glycerol was added to the degumified raw material, heated and stirred at 165 to 175° C. for 1 hour under a nitrogen stream to form a suspension, cooled to room temperature, and then water was added and stirred for 5 minutes. The resulting suspension was filtered, washed with water, and dried to obtain silk fibroin powder having a particle size distribution of 0.1-100 μm.

Manufacturing example 2: Clock seconds Preparation of extract

1 kg of dried passionflower was precipitated in an aqueous solution of 7:3 (v/v) ethyl alcohol and water for 5 days, filtered through 300 mesh, and concentrated at 80°C using a vacuum concentrator. The thus-obtained passiflora extract was dissolved in 1,3-butylene glycol to facilitate application again to the product to obtain a passiflora extract.

Manufacturing example 3: Preparation of bamboo extract

1 kg of chopped and shaded bamboo outpost was refluxed and extracted three times with 70% (V/V) ethanol aqueous solution for 5 hours each, cooled, and then filtered through Whatman #4 filter paper. The filtered extract was concentrated under reduced pressure at 50° C. or lower and freeze-dried to obtain a bamboo solvent extract.

Experimental example One. Silk powder And skin cell protection effect by heat of plant extract

Human Normal Fibroblast cells were inoculated in a 24-well plate at 1 × 10 ⁵ cells/well and cultured for 24 hours. After cultivation, the culture medium was discarded and the cells were subjected to thermal stimulation using an infrared irradiator, and then cell viability was measured. Thereafter, silk powder and plant extract were treated with 0.5 and 1.0% (v/v) respectively in each well, and cultured for 3 days, and the cell viability in each well was confirmed through MTT assay, and the results are shown in Table 1 below. Indicated.

Experimental concentration (%(v/v)) Absorbance (at 570nm) infrared ray infrared ray 3 days Before investigation After investigation After cultivation Control 1.721 - 1.838 Control + infrared - 0.831 0.835 Silk powder (Preparation Example 1) 5% - 0.81 1.701 Silk powder (Preparation Example 1) 5% + Passion vinegar extract (Preparation Example 2) 1% - 0.807 1.782 Silk powder (Preparation Example 1) 5% + Bamboo extract (Preparation Example 3) 1% - 0.804 1.764 Silk powder (Preparation Example 1) 5% + Passionweed extract (Preparation Example 2) 0.75% + Bamboo extract (Preparation Example 3) 0.25% - 0.814 1.802 Silk powder (Preparation Example 1) 5% + Passion vinegar extract (Preparation Example 2) 0.5% + Bamboo extract (Preparation Example 3) 0.5% - 0.821 1.896 Silk powder (Preparation Example 1) 5% + Passion vinegar extract (Preparation Example 2) 0.25% + Bamboo extract (Preparation Example 3) 0.75% - 0.811 1.792

As shown in Table 1 above, when irradiated with infrared rays, cells died and the cell viability rapidly decreased, but the cell viability increased by additional treatment of silk powder with infrared irradiation. When silk powder and two plant extracts were mixed, the cell viability was further increased. Among the cases in which plant extracts were mixed, the case of 1:1 mixture of Passiflora extract and bamboo extract was the most excellent in inhibiting cell death.

Example 1-5 and Comparative example 1~2

Examples of cream formulations among cosmetics containing silk powder and plant extracts are shown in Table 2 below. Examples 1 to 6 containing a mixture of silk powder and plant extract were prepared, respectively.

Ingredients (unit: wt%) Comparative Example 1 Example 1 Example 2 Example 3 Example 4 Example 5 Comparative Example 2 Silk powder 5 5 5 5 5 5 - Passionate extract - One - 0.75 0.5 0.25 - Bamboo extract - - One 0.25 0.5 0.75 - Lipotype glycerin monostearate 2 2 2 2 2 2 2 Cetearyl alcohol 2.2 2.2 2.2 2.2 2.2 2.2 2.2 Stearic acid 1.5 1.5 1.5 1.5 1.5 1.5 1.5 Beeswax One One One One One One One Polysorbate 60 1.5 1.5 1.5 1.5 1.5 1.5 1.5 Sorbitan stearate 0.6 0.6 0.6 0.6 0.6 0.6 0.6 Hydrogenated vegetable oil One One One One One One One Squalane 3 3 3 3 3 3 3 Mineral oil 5 5 5 5 5 5 5 Trioctanoine 5 5 5 5 5 5 5 Dimethicone One One One One One One One Sodium magnesium silicate 0.1 0.1 0.1 0.1 0.1 0.1 0.1 glycerin 5 5 5 5 5 5 5 Betaine 3 3 3 3 3 3 3 Triethanolamine One One One One One One One Sodium hyaluronate 4 4 4 4 4 4 4 Phenoxyethanol 0.2 0.2 0.2 0.2 0.2 0.2 0.2 incense 0.05 0.05 0.05 0.05 0.05 0.05 0.05 Distilled water Balance Balance Balance Balance Balance Balance Balance Sum 100 100 100 100 100 100 100

Experimental example 2: skin temperature control effect

In order to find out the effect of controlling skin temperature of the cosmetic composition containing the silk powder of the present invention, an experiment was conducted as follows.

23 healthy subjects in their 20s to 40s were sedated in a constant temperature and humidity room for about 20 minutes, and then facial thermal images and facial temperature were measured using an infrared thermogram (IRIS-XP/MEDICORE, Korea). After applying the nutritional cream prepared in Examples 1 to 5 and Comparative Examples 1 and 2 on both sides of the face, after 10 minutes of near-infrared irradiation, facial thermal images and facial temperature were measured to evaluate the degree of skin temperature change, and the results are shown in the table. It is shown in 3. Examples 2 to 6 were also carried out in the same manner and shown in Table 3.

division Before use (unit:℃) After infrared irradiation (unit: ℃) Comparative Example 1 29.15 ± 1.01 33.23 ± 0.47 Comparative Example 2 29.28 ± 0.74 36.45 ± 0.98 Example 1 29.13 ± 0.97 32.44 ± 0.78 Example 2 29.05 ± 0.85 32.63 ± 1.05 Example 3 29.17 ± 0.99 32.21 ± 1.01 Example 4 29.02 ± 0.81 32.01 ± 0.49 Example 5 29.16 ± 0.32 32.20 ± 0.44

As shown in Table 3, Examples 1 to 5, which are cosmetics containing silk powder and plant extracts, have an effect of inhibiting skin temperature rise compared to Comparative Example 1 containing only silk powder and Comparative Example 2 containing nothing. It was excellent.

In addition, the effect of inhibiting skin temperature increase in the formulation containing at least one silk powder and plant extract was more excellent, and among them, Example 4, in which Passion vinegar and bamboo extract were mixed at a mixing weight ratio of 1:1, was the most excellent.

As the specific parts of the present invention have been described in detail above, it is clear that these specific techniques are only preferred embodiments for those of ordinary skill in the art, and the scope of the present invention is not limited thereto. Therefore, it will be said that the practical scope of the present invention is defined by the appended claims and their equivalents.

Claims (4)

Contains silk powder, and a mixed plant extract of a passionflower extract and a bamboo extract as an active ingredient,
The silk powder and the mixed plant extract are included in a weight ratio of 5 to 10:1,
The mixed plant extract is a cosmetic composition for controlling skin temperature, characterized in that the mixture of the passionflower extract and the bamboo extract in a weight ratio of 1 to 3: 3 to 1. The cosmetic composition according to claim 1, wherein the silk powder is contained in an amount of 0.1% to 20.0% by weight, and the mixed plant extract is contained in an amount of 0.001% to 10.0% by weight based on the total weight of the cosmetic composition. delete delete