KR100834808B1 - Cleansing composition - Google Patents

Abstract

The present invention provides a cleansing composition comprising a hydrophilic polymer which is one or a mixture of two or more selected from acrylate / alkyl acrylate copolymers or acrylate / C12-22 alkyl methacrylate copolymers.

The present invention also provides a cleansing composition on a foam formed by mixing and spraying a cleansing composition comprising the hydrophilic polymer described above with a low boiling point liquefied gas.

Hydrophilic Polymer, Cleansing Composition

Description

Cleansing composition

The present invention relates to a cleansing composition for removing contaminants such as makeup cosmetics present on the skin. More specifically, the present invention includes a hydrophilic polymer, and is a product of skin physiological metabolism such as makeup cosmetics present in facial skin, sebum attached to the skin surface, scab of stratum corneum, oxidized secretion of sebum, residue of sweat and the like. The present invention relates to a cleansing composition which can easily remove dust, microorganisms, and the like in the air.

Sebum is secreted from the oil glands, and sweat is secreted from the sweat glands, spreading to the surface of the skin or hair to form a sebaceous membrane and protecting the skin and hair. However, these secretions become what is termed "time" when they evaporate over time and become contaminated by keratinocytes that are oxidized by oxygen in the air or peeled off by keratinization, dust or dirt attached to the outside. If left in such a state, the secretion of sebum or sweat is disturbed on the skin, and the normal secretion does not occur, and the growth of bacteria and the like may be a cause of skin diseases.

Especially in the case of using makeup cosmetics, oily ingredients such as fats and oils, cosmetics such as colorants and fragrances are attached to the skin, and these materials gradually disperse over time, or decomposition products are generated to irritate the skin. Decreases the physiological function of the skin. Therefore, it is important for skin health hygiene to remove and remove contaminants such as makeup cosmetics present on the skin.

Therefore, various products such as soap are used to remove contamination of makeup cosmetics from the skin of the face and the like, but soap has a poor ability to remove makeup cosmetics, etc. as a surfactant, and soap removes various contaminants from the surface of the skin. On the other hand, since the aqueous solution is alkaline while removing the fat film, which plays an extremely important role in the health and hygiene of the skin, there are disadvantages.

Therefore, cleansing cream, cleansing lotion, and cleansing water, which are more excellent in removing makeup cosmetics, are primarily used for removing makeup cosmetics, followed by foam cleansing for complete removal of contaminants such as residues of makeup cosmetics. have.

However, products such as cleansing creams may have alkaline pH and contain about 40-50% of mineral oil, which may require wiping with tissue after use due to greasy skin or excessive slippage. A great deal of cleansing, such as cleansing, is needed, and the skin's pH needs to be adjusted.

Therefore, such a conventional makeup cosmetic removal product requires a lot of processes and a considerable time, and may cause a temporary increase in the pH of the skin, whereby the stratum corneum of the skin is in a loose state, thereby preventing invasion of contaminants or bacteria from the outside. It can happen easily and there is a need for a solution.

An object of the present invention is to provide a cleansing composition which contains a hydrophilic polymer as a main component and effectively removes contaminants such as makeup cosmetics of the skin and old dead skin and dust caused by turnover of the skin at once.

In addition, an object of the present invention is to provide a cleansing composition in the form of a foam formed by mixing and spraying a cleansing composition containing the hydrophilic polymer as a main component with a low boiling point liquefied gas.

The present invention provides a cleansing composition comprising a hydrophilic polymer which is one or a mixture of two or more selected from acrylate / alkyl acrylate copolymers or acrylate / C12-22 alkyl methacrylate copolymers.

More specifically, the present invention

i) 4 to 40% by weight of a hydrophilic polymer which is one or a mixture of two or more selected from acrylate / alkyl acrylate copolymers or acrylate / C12-22 alkyl methacrylate copolymers,

ii) 0.4 to 10% by weight of nonionic surfactant,

iii) 0.2 to 10% by weight of emollient,

iv) 0.1 to 1.5% by weight of one or more additives selected from silica, bentonite, silica silylate, silica dimethyl silylate,

v) greater than 10% to 20% by weight of alcohol, and

vi) providing a cleansing composition comprising a residual amount of water.

The present invention also provides a cleansing composition on a foam formed by mixing and spraying a cleansing composition comprising the hydrophilic polymer described above with a low boiling point liquefied gas.

Hereinafter, the present invention will be described in more detail.

The present inventors have solved the above problems of the conventional cleansing products used to remove dirt on the facial skin such as makeup cosmetics, and removes contaminants such as sebum, keratin, dust, etc. present in not only makeup cosmetics but also other skin at once Research efforts have been made to obtain compositions that can simplify the cleaning process. It has been found that the present invention can be used to remove dirts, such as makeup cosmetics present on the skin, and thus, the invention of the cleansing composition of the present invention has been completed.

In the present invention, the term "cleansing composition" is not only a composition used for removing makeup cosmetics such as a face, but also a composition used for removing contamination such as makeup cosmetics remaining after first removing makeup cosmetics by other means. Encompasses

The cleansing composition of the present invention comprises, as a main component, a hydrophilic polymer which is one or a mixture of two or more selected from acrylate / alkyl acrylate copolymers or acrylate / C12-22 alkyl methacrylate copolymers.

The hydrophilic polymer is excellent in the function of removing makeup cosmetics, etc. attached to the skin bar, when applying the cleansing composition of the present invention to the skin, the hydrophilic polymer gently spreads on the skin while the makeup cosmetics present on the skin, It adheres to dust in every corner of the skin, old dead skin caused by skin turnover, and dust adhered from the outside to form granules to remove these substances together.

The hydrophilic polymers have never been used in cleansing compositions for cleanliness of the skin.

The acrylate / alkyl acrylate copolymer compounds that can be used in the compositions of the present invention are copolymers of alkyl acrylates and monomers of at least one of acrylic acid, methacrylic acid or their simple esters, and can be any acrylate / alkyl acrylate copolymer. Can be used in the present invention, for example, acrylate / ethylhexyl acrylate copolymer and the like can be used. Acrylate / C12-22 alkyl methacrylate copolymers are copolymers of C12-22 alkyl methacrylate with one or more monomers of acrylic acid, methacrylic acid, or simple esters thereof, with any acrylate / C12-22 alkyl Methacrylate copolymers can be used in the present invention, such as, for example, Aculyn PE polymers.

The hydrophilic polymer as described above may be included in the composition of the present invention 4 to 40% by weight, when the content of the hydrophilic polymer is less than 4% by weight does not appear effective skin decontamination ability does not effectively remove the contamination of the skin, 40% by weight If it exceeds, there is a problem in that due to the properties of the hydrophilic polymer itself to form a mass without decontamination.

The surfactant used in the present invention is a nonionic surfactant having a low irritation to the skin and an excellent emulsifying ability. The composition of the present invention can be used any conventional nonionic surfactant used in the cosmetic composition, a preferred example of the nonionic surfactant that can be used in the present invention is polyoxy ethylene lauryl ether (e.g., POE (2) Lauryl ether, POE (20) lauryl ether, POE (21) lauryl ether), diisostearic acid glycerol, isostearic acid glycerol, and the like, and one or more mixtures thereof are used.

Surfactant is contained in the amount of 0.4 to 10% by weight, if the amount is less than 0.4% by weight of the contaminants on the skin and the formation of granules of the hydrophilic polymer does not occur properly, there is a problem that the cleansing function of the composition of the present invention is deteriorated, the amount used is 10 When the weight% is exceeded, granulation of the hydrophilic polymer occurs, but the surfactant is left in the skin due to the excessive amount of the surfactant, and it is not preferable because the spray nozzle may be blocked due to the grain during the foam phase preparation.

The emollient agent may use an emollient agent commonly used in cosmetic compositions, for example, one or two or more selected from dimethicone, cetyl ethylhexanoate, cyclomethicone, phenyl trimethicone, and the like. Mixtures can be used.

The content of emollient is 0.2 to 10% by weight. If the amount is less than 0.2% by weight, the emollient effect suitable for the present invention cannot be expected. If the content of the emollient is greater than 10% by weight, the hydrophilic polymer acts as a skin. The time for forming granules for removal of contamination, etc. is delayed, and the effect of emollient itself is to cover the contamination of the skin, thereby reducing the effect of removing the skin contamination.

The composition of the present invention also includes at least one selected from bentonite, silica, silica silyl, silica dimethylsilyllate as an additive.

These additives are added to the hydrophilic polymer of the composition of the present invention to form granules while improving the feeling of use.

The content of these additives is preferably 0.1 to 1.5% by weight. If the additive is included in less than 0.1% by weight, the granules formed by the hydrophilic polymer become a yarn or agglomerate, and the feeling of use is not good, and when it is included in an amount exceeding 1.5% by weight, the viscosity of the composition is increased, so that it is sprayed at the time of manufacturing into a foam. It is not preferable because the nozzle may be clogged and the nozzle may be blocked.

In addition, the composition of the present invention contains more than 10% to 20% by weight of alcohol for improving the feel of the cleansing composition and the like. When alcohol is contained in an amount of less than 10% by weight, there is a problem that the feeling of use when using the cleansing products made of the composition of the present invention is poor, and when it exceeds 20% by weight, the foam phase is not formed when the composition of the present invention is formed into a foam phase there is a problem.

In addition to the above components, the composition of the present invention may contain a residual amount of purified water, and may further optionally include conventional additives such as perfume.

The cleansing composition of the present invention comprising the above ingredients is applied to the skin while gently spreading without irritation to the skin, as well as makeup cosmetics present in the dust, sebum, old keratin of the stratum corneum, skin physiological metabolites and granules thereof. Effectively removing contaminants at once to clean the skin and smoothing the metabolism of the skin, it can be used as a cleansing composition for the removal of contamination, such as makeup cosmetics.

The composition of the present invention may also be used in place of foam cleansing to remove residual makeup cosmetics and other contaminants after removing the makeup cosmetics using conventional cleansing products.

Preparation of the cleansing composition comprising the hydrophilic polymer of the present invention, first, at least one selected from a hydrophilic polymer, purified water and bentonite, silica, and silica silylate are mixed and stirred at room temperature (RPM 1000 ~ 1500), and then nonionic Surfactants, alcohols, emollients and silica dimethylsyrates are stirred at room temperature or at a temperature of 30 to 40 ° C. at moderate rates and mixed with mixtures containing hydrophilic polymers (RPM 1000 to 1500). Such preparation of the cleansing composition of the present invention can be easily made by mixing by simple stirring at room temperature.

On the other hand, the present invention provides a cleansing composition on a foam formed by mixing and spraying the cleansing composition and the liquefied gas containing the hydrophilic polymer described above in a container.

Such a cleansing composition on a foam can be prepared by mixing and spraying 70 to 95% by weight of the cleansing composition of the present invention with 5 to 30% by weight of a low boiling point liquefied gas in a metal container.

The liquefied gas that can be used at this time is preferably a liquefied gas having a boiling point of -40 ~-0.5 ℃, for example, may be used one or more selected from butane gas, propane gas and dimethyl ether.

The cleansing products on the foam are clearly distinguished from the existing cleansing products in the form of creams or lotions. Unlike the existing cleansing products, the cleansing products do not need to be wiped with a tissue after use, and they are used for washing or using a lotion with water. Only by wiping off, the cleansing composition of the present invention is completely removed.

Example  And Comparative example

To prepare the cleansing compositions of Examples 1 and 2 and Comparative Examples 1 to 3 according to the composition and content shown in Table 1 below 85% by weight of these compositions and 15% by weight of the liquefied gas (3: 7 mixture of propane gas and butane gas) Was sprayed by mixing in a metal container to prepare a cleansing composition on the foam of the present invention.

Ingredient (% by weight) Example 1 Example 2 Comparative Example 1 Comparative Example 2 Comparative Example 3 Acrylate / ethylhexyl acrylate copolymer 20 30 55 4 20 POE (21) lauryl ether 4 4 8 0.4 12 Dimethicone 2 2 2 0.5 2 Alcohol 15 15 10 10 15 Silica dimethyl silylate 0.4 0.4 0.3 0.2 0.4 Spices 0.1 0.1 0.1 0.1 0.1 Purified water 58.5 48.5 24.8 84.8 40

Test Example

Using the cleansing composition on the foam obtained by mixing the compositions of Examples 1 to 2 and Comparative Examples 1 to 3 prepared as described above with the liquefied gas, the skin was contaminated from 20 women aged 20 to 40 years. Sensory evaluation was performed about the effect and the feeling at the time of use.

Evaluation scores were computed by the following formula with very satisfied 5 points, satisfied 4 points, normal 3 points, bad 2 points, and very bad 1 point.

Overall score = {(very satisfied) x5 + (satisfied) x4 + (normal) x3 + (bad) x2 + (very bad) x1} / total

The results are shown in Table 2.

Example 1 Example 2 Comparative Example 1 Comparative Example 2 Comparative Example 3 Decontamination effect   4.3   4.4   3.8    1.7   3.5 Feeling   4.2   4.3   2.7    2.1   2.5

As can be seen in Table 2, the compositions of Examples 1 and 2 were excellent in both the decontamination effect and the feeling of use of the skin.

On the other hand, in Comparative Example 1 containing 55% by weight or more hydrophilic polymer, the decontamination effect of the skin is good, but the feeling of use was not satisfactory, in Comparative Example 2 containing less than 4% by weight hydrophilic polymer, decontamination It was difficult to form suitable granules for the decontamination effect, and it also irritated the skin, resulting in poor usability. In addition, in the case of Comparative Example 3 in which the surfactant is more than 10% by weight, there was an effect of decontamination of the skin, but the use of the product on the foam resulted in clogging of the nozzle, which was not preferable.

As described above, the cleansing composition comprising the hydrophilic polymer of the present invention is a skin physiological metabolite or air such as makeup cosmetics, sebum adhered to the skin surface, keratin of the stratum corneum, oxidative secretion of sebum, residue of sweat and the like. Easily removes dirt and dust at once to cleanse the skin and smoothly metabolize the skin to provide the effect of maintaining skin flexibility.

In addition, since there is no problem of excessive oiliness of the existing cleansing products, it is not necessary to wipe the tissue with a tissue after use, and it does not require additional use such as foam cleansing, which is simpler than conventional cleansing products. It can effectively remove not only makeup cosmetics but also other skin dirts at once, and can also be used instead of conventional foam cleansing.

Claims (6)

i) 4 to 40% by weight of a hydrophilic polymer which is one or a mixture of two or more selected from acrylate / alkyl acrylate copolymers or acrylate / C12-22 alkyl methacrylate copolymers, ii) 0.4 to 10% by weight of nonionic surfactant, iii) 0.2 to 10% by weight of emollient, iv) 0.1 to 1.5% by weight of one or more additives selected from silica, bentonite, silica silylate, silica dimethyl silylate, v) greater than 10% to 20% by weight of alcohol, and vi) a cleansing composition comprising a residual amount of water. The cleansing composition of claim 1 wherein the hydrophilic polymer is an acrylate / ethylhexyl acrylate copolymer. The nonionic surfactant according to claim 1 or 2, wherein the nonionic surfactant is selected from POE (2) lauryl ether, POE (20) lauryl ether, POE (21) lauryl ether, diisostearic acid glycerol, and isostearic acid glycerol. Cleansing composition which is one or a mixture of two or more selected from. The cleansing composition according to claim 1 or 2, wherein the emollient agent is one or a mixture of two or more selected from dimethicone, cetyl ethylhexanoate, cyclomethicone, phenyl trimethicone and the like. A cleansing composition on a foam comprising 70 to 95% by weight of the cleansing composition of claim 1 and 5 to 30% by weight of a liquefied gas having a boiling point of -40 to -0.5 ° C. The cleansing composition of claim 5, wherein the liquefied gas is at least one selected from butane gas, propane gas, dimethyl ether, and the like.