KR20130028480A - Cosmetic composition comprising weighting agent - Google Patents

Abstract

PURPOSE: A cosmetic composition which includes weight regulator is provided to solubilize or emulsify the oil and water layers and improve the product stability when a small amount or no surfactant is available. CONSTITUTION: A cosmetic composition which includes weight regulator has oil and water layers including weight regulator to be solubilized as well as emulsified and includes less than 0.5 weight% of the total weight composition included/not included a surfactant. The surfactant includes less than 0.1 weight% of the total weight of the composition. The difference between the weight of the oil layer including the weight regulator and weight of the final composition has no difference or is less than 0.02. The weight regulator has a weight over 0.990 at 20 °C. The weight regulator comprises the following content: 1.0 = (rate of the weight regulator X rate of the weight regulator among oil layer) + (weight of other oily component X rate of other oily component among oil layer).

Description

Cosmetic composition comprising a specific gravity control agent {Cosmetic composition comprising weighting agent}

The present invention relates to a specific gravity control cosmetic composition, by containing a specific gravity control agent can improve the formulation stability even if there is no or a small amount of the surfactant and can reduce the skin problems due to the surfactant cosmetic composition that can increase the skin safety And it relates to a manufacturing method thereof.

The most basic purpose of cosmetics is to replenish the skin's daily moisture and oil content. In general, cosmetics are composed of an aqueous phase providing moisture and an oily phase providing oil, wherein the aqueous phase contains water-soluble components such as water, a moisturizer, and a polymer material, and the oily layer includes oils, waxes, and the like. Oil soluble ingredients.

In the cosmetic composition, the aqueous layer and the oily layer are present in an emulsified state. An emulsification refers to a single phase including a fine phase surrounded by an emulsifier. In general, an emulsifier is required to have a surfactant because it is necessary to semi-permanently disperse the phases which are not mixed with each other. Shall be. Surfactants are molecules having an amphiphilic structure having a hydrophilic portion and a lipophilic portion. The surfactant is located at the interface to lower the interfacial tension, which helps to mix the two phases and prevents the phases from separating.

Common surfactants are used with safety clearance but many surfactants can still cause irritation or allergies. This is due to the property that the surfactant surrounds the oil phase to form micelles. When the surfactant is applied to the skin, the surfactant tries to form micelles for the lipids necessary for the skin. This weakens and increases skin permeability. Highly permeable skin is easy to lose moisture and becomes dry skin, so that the penetration of foreign substances is easy to cause a sensitive skin reaction causing irritation or allergy.

Therefore, in the cosmetics industry, various researches are being conducted to develop cosmetics that can minimize problems caused by surfactants. For example, the development of the use of natural surfactants such as lecithin, the use of polymers having amphiphilic properties, pickling emulsification using particles, and separate cosmetics that are used without emulsification and separated.

In addition, Korean Patent No. 0135358 describes a cosmetic composition containing spherical droplets in which the oil is spherical on the aqueous alcohol solution by dispersing the oil in an aqueous alcohol solution without using an organic surfactant. In Korea Patent No. 0405870, 5 to 30% by weight of volatile oil or volatile silicone oil of 12 to 20 carbon atoms, 0.5 to 20% by weight of nonvolatile oil, 0.5 to 10% by weight of inorganic thickener and powder 2 to 50% A non-aqueous and non-surfactant composition consisting of% and containing no water and no surfactant is described. In addition, Korean Patent No. 0877328 provides a surfactant-free cosmetic composition that forms a stable emulsion without using a surfactant by encapsulating the liquid oil in the shell lipid. In addition, Korean Patent No. 1060930 discloses that a poly-gamma-glutamic acid crosslinked product having an average particle diameter of 1 to 50 um or a poly-gamma-glutamic acid crosslinked product as a moisturizing agent is used even if the surfactant is not used or the amount thereof is reduced. To provide a cosmetic composition in which the emulsifier is well dispersed.

However, these techniques point to various limitations such as discoloration or malodor problems, formulation stability limitations, usability limitations, and consumer discomfort.

Accordingly, the present inventors have tried to solve the skin irritation problem caused by the surfactant and to develop a cosmetic composition with excellent skin safety, and when using a specific gravity regulator in solubilizing and emulsifying formulations, the present invention contains a stable cosmetic containing no surfactant or a small amount. The present invention was completed by confirming that it can be provided.

The technical problem to be achieved by the present invention is a skin, lotion, essence, cream that does not contain any surfactant or much less than the existing but excellent product stability and solved the skin problems caused by the surfactant without limiting the feeling of use to enhance skin safety It is to provide a cosmetic composition such as.

Accordingly, one object of the present invention is to provide a cosmetic composition that is solubilized and emulsified in the oil and water layers including the specific gravity control agent and does not contain a surfactant or contain 0.5% by weight or less based on the total weight of the composition.

Another object of the present invention is to provide a method for producing the cosmetic composition. Preferably, the method for preparing the cosmetic composition includes mixing a specific gravity regulator with an oil phase layer, and mixing the oil phase layer and the aqueous phase including the specific gravity control agent to prepare a solubilization and emulsion formulation.

In order to achieve the above technical problem, in one embodiment, the present invention is solubilized and emulsified in the oil phase and the aqueous phase comprising a specific gravity control agent, does not contain a surfactant or contain 0.5% by weight or less based on the total weight of the composition It relates to a cosmetic composition. Such compositions of the present invention are characterized in that they are solubilized and emulsified formulations.

The present invention is based on the surprising discovery that the use of specific gravity regulators instead of surfactants in solubilizing and emulsifying formulations can provide stable cosmetics even with minimal or no surfactants.

As used herein, the term "weighting agent" is a chemical substance that can be easily mixed with the oil phase while having a specific gravity higher than that of the material present in the oil phase layer. It refers to a material that makes the specific gravity of the oily layer mixed. In general, the specific gravity control agent is used to make the specific gravity of the oil phase higher than the specific gravity of the essential oil alone by mixing in the essential oils to flavor the beverage during beverage processing, in the present invention by applying the specific gravity regulator to the cosmetic composition, the surfactant It was found that it could be used as a substitute material.

The principle that the specific gravity regulator can control the specific gravity is as follows. The specific gravity of the materials in the oily layer, such as oil, is usually about 0.8 ~ 0.9. The specific gravity of the specific gravity regulator is more than 0.990 at 20 ℃, and it is easily mixed in the oily phase. It is set to 1.0, which is similar to the layer. The proportion of specific gravity regulator to be mixed is then calculated by the equation:

1.0 = (specific gravity modifier specific gravity X ratio of specific gravity modifier in oil phase)

+ (Specific gravity of remaining oil phase X ratio of remaining oil components in oil phase)

In general, cosmetics of solubilized and emulsified formulations are in a state where the aqueous layer and the oily layer are mixed due to the surfactant. If there is no surfactant, the two layers are separated without mixing. Will occur. In the present invention, since the specific density control agent is mixed with the oil phase instead of the surfactant to increase the overall density of the oil phase, the oil phase and the aqueous phase are adjusted to have the same specific gravity. The phenomenon can be prevented.

Therefore, preferably, the specific gravity control agent used in the cosmetic composition of the present invention, the specific gravity of the oil phase layer containing the specific gravity regulator and the specific gravity of the final composition is the same or the difference in specific gravity is 0.02 or less, more preferably 0.01, most Preferably it is 0.001 or less.

In addition, preferably, the specific gravity control agent used in the cosmetic composition of the present invention may be easily mixed with the oily layer, and a material having a high specific gravity may be used, and preferably, a specific gravity of 0.990 or more may be used at 20 ° C.

Preferably, the specific gravity-controlling agent is a glycerol ester of dammar resin, brominated vegetable oil, sucrose acetate isobutyrate (SAIB), Fiji-7 succinic One or more selected from the group consisting of acid copolymer (PPG-7 succinic acid copolymer) and polyglyceryl-6 octacaprylate, but is not limited thereto.

Due to the presence of the specific gravity control agent, the cosmetic composition of the present invention is characterized in that it contains no surfactant or 0.5% by weight or less, preferably 0.1% by weight or less based on the total weight of the composition.

In the case of containing a surfactant, specific examples include PIG-40 stearate, sorbitan stearate, sorbitan fatty acid ester, glycerin fatty acid ester, polyglycerol fatty acid ester, propylene glycol fatty acid ester, Polyethylene glycol fatty acid esters, sucrose fatty acid esters, polyoxyethylene alkyl ethers, polyoxypropylene alkyl ethers, polyoxyethylene alkylphenyl ethers, polyoxyethylene fatty acid esters, polyoxyethylene sorbitan fatty acid esters, polyoxyethylene sorbitol fatty acid esters, poly Oxyethylene glycerin fatty acid ester, polyoxyethylene propylene glycol fatty acid ester, polyoxyethylene castor oil, polyoxyethylene hardened castor oil, polyoxyethylene phytostanol ether, polyoxyethylene phytosterol ether, Polyoxyethylene cholestanol ether, polyoxyethylene cholesteryl ether, alkanol amides, sugar ethers, sugar amides and the like may be used alone or in combination, but is not limited thereto.

In addition, the oil phase component contained in the cosmetic composition of the present invention may contain poorly soluble substances such as oils, fragrances, and preservatives. The oil phase layer is preferably contained in 0.01 to 30% by weight, preferably 0.1 to 10% by weight relative to the total weight of the composition. Below the above range, the oil content is too small to supply oil, and when the above range is exceeded, the long-term stability of the formulation may deteriorate rapidly.

As the oil, oils generally used according to the use or purpose of cosmetics may be appropriately selected and used. Specific examples include caprylic / capric triglycerides, adipic diisobutyl, adipic acid 2-hexyldecyl, adipic acid di-2-heptyl undecyl, monoisostearic acid N -Alkylglycol, isostearic isocetyl, triisostearic acid trimethylolpropane, di-2-ethylhexanoic acid ethylene glycol, 2-ethylhexanoic acid cetyl, tri-2-ethylhexanoic acid trimethylolpropane, tetra-2- Pentaerythritol, octanoic acid cetyl, octyldodecyl gum ester, oleic acid oleyl, octyl oleic acid octyldodecyl, oleic acid decyl, dioctanoate neopentylglycol, dicapric acid neopentylglycol, triethyl citrate, 2-ethyl succinate Hexyl, amyl acetate, ethyl acetate, butyl acetate, isocetyl stearate, butyl stearate, diisopropyl sebacate, di-2-ethylhexyl sebacate, cetyl lactate, myristyl lactic acid, isononan acid isono Neyl, isononanoic acid isotridecyl, isopropyl palmitic acid, 2-ethylhexyl palmitic acid, 2-hexyldecyl palmitic acid, 2-heptyl undecyl palmitic acid, 12-hydroxystearate cholesteryl, Dipentaerythritol fatty acid ester, myristic acid isopropyl, myristic acid octyldodecyl, myristic acid 2-hexyldecyl, myristic acid myristyl, dimethyloctanoic acid hexyldecyl, ethyl laurate, hexyl laurate, Ester-based synthetic oils such as N-lauroyl-L-glutamic acid 2-octyldodecyl ester and malic acid diisostearyl; Dimethylpolysiloxane, methylphenylpolysiloxane, methylhydrogenpolysiloxane, dimethylsiloxane / methylphenylsiloxane copolymer, octamethylcyclotetrasiloxane, decamethylcyclopentasiloxane, dodecamethylcyclohexasiloxane, tetramethyltetrahydrogencyclotetrasiloxane, tetramethyltetra Phenylcyclotetrasiloxane, gum dimethylpolysiloxane, gum dimethylsiloxane / methylphenylsiloxane copolymer, trimethylsiloxysilicate, trimethylsiloxysilicate, stearoxysilicone, higher fatty acid modified silicone, alkyl modified silicone, amino modified silicone, fluorine modified silicone, silicone Silicone oils such as melts of resins; avocado oil, linseed oil, almond oil, insect beetle, perilla oil, olive oil, cacao butter, kapok rapeseed, non-tree oil, carnauba rapeseed, cod liver oil, candelilla rapeseed, tallow, ooze, Ugolji, hardened beef tallow, apricot oil, sperm, hardened oil, wheat germ oil, Oil, rice germ oil, bran oil, sugarcane, camellia oil, safflower oil, shea butter, copper wood oil, cinnamon oil, jojoba barb, shellacrab, turtle oil, soybean oil, tea tree oil, camellia oil, evening primrose oil , Corn oil, lard, rapeseed oil, Japanese paulownia oil, rice hull, germ oil, horse paper, apricot oil, palm oil, palm kernel oil, castor oil, hardened castor oil, castor oil fatty acid methyl ester, sunflower oil , Grapeseed oil, laurel fruit wax, jojoba oil, macadamia nut oil, beeswax, mink oil, cottonseed oil, cottonseed, wax, waxy kernel oil, montan wax, palm oil, hardened palm oil, palm oil fatty acid triglyceride, sunny, peanut oil, lanolin, liquid Lanolin, reduced lanolin, lanolin alcohol, hard lanolin, lanolin acetate, lanolin fatty acid isopropyl, hexyl laurate, POE lanolin alcohol ether, POE lanolin alcohol acetate, lanolin fatty acid polyethylene glycol, POE number Animal and vegetable oils such as small added lanolin alcohol ether and egg yolk oil; And hydrocarbon oils such as ozokerite, squalane, squalene, ceresin, paraffin, paraffin wax, liquid paraffin, pristane, polyisobutylene, microcrystalline wax, petrolatum, and the like, may be used alone or in combination. It is not limited.

In addition, the aqueous phase component contained in the cosmetic composition of the present invention may include purified water, a polyol, a preservative or a thickener. The aqueous layer is preferably contained 70 to 99.9% by weight, preferably 90 to 99.9% by weight relative to the total weight of the composition. Below this range, the moisture content is too small to supply moisture to the skin, and if it exceeds the above range, the long-term stability of the formulation may deteriorate rapidly.

The polyol may be appropriately selected from those generally used according to the use or purpose of the cosmetic. Specific examples thereof may include propylene glycol, dipropylene glycol, 1,3-butylene glycol, pentylene glycol, 1,2-hexanediol, and mixtures thereof, but are not limited thereto.

As the water thickener, carbomer, polyacrylamide, ammonium acryloyldimethyltorate-VPicopolymer, xanthan gum, cellulose ether, polyvinyl derivative, alginate, polyacrylate, and mixtures thereof may be used. It is not limited to the illustration.

In addition, the cosmetic composition of the present invention may include components conventionally used in emulsion formulations within the range of not impairing the object of the present invention in addition to the above components, for example, conventional adjuvants such as stabilizers, vitamins, pigments, etc. It may include.

As another aspect, the present invention relates to a cosmetic comprising the cosmetic composition.

Preferably, the cosmetic product is a flexible cosmetics, astringent cosmetics, nourishing cosmetics, nutrition cream, massage cream, eye cream, eye essence, essence, cleansing cream, cleansing lotion, cleansing foam, cleansing water, pack, powder, body lotion, body cream Cosmetics having a formulation selected from the group consisting of body essences, body cleaners, sunscreen creams, hair dyes, shampoos, rinses, toothpastes, mouthwashes, hairdressing agents, woolen lotions, ointments, gels, creams, patches and sprays It includes.

As another aspect, the present invention relates to a method for producing the cosmetic composition.

In a preferred embodiment, the manufacturing method

(a) mixing the specific gravity regulator in the oil phase; And

(b) mixing the oily layer and the aqueous layer including the specific gravity modifier to prepare a solubilization and emulsion formulation.

Specifically, the cosmetic composition of the present invention may be prepared by mixing the specific gravity control agent in the oil phase layer and then homogenizing it while gradually introducing the aqueous phase layer.

The cosmetic composition using the specific gravity control agent according to the present invention can solve the skin irritation problem caused by the surfactant and increase the skin safety, and is superior to the cosmetics containing no specific gravity control agent in terms of safety of the skin. In addition, the present invention can provide an excellent cosmetic composition containing no surfactant at all or a small amount and excellent in product stability and no limit of usability.

Hereinafter, the present invention will be described in detail by way of examples. However, the following examples are illustrative of the present invention, and the present invention is not limited by the following examples. Embodiments of the invention are provided to more fully describe the present invention to those skilled in the art.

Example  1 and 2, and Comparative example  1 to 3

Cosmetic compositions containing the specific gravity regulators (Examples 1 and 2) and cosmetic compositions without the specific gravity regulators (Comparative Examples 1 to 3) were prepared according to the compositions of Table 1 below. Specifically, A and B were heated to about 70 ° C., mixed and dissolved, and then uniformly homogenized while gradually adding A phase to B phase, followed by cooling to prepare an emulsion formulation.

Raw material (unit: weight%) Example 1 Example 2 Comparative Example 1 Comparative Example 2 Comparative Example 3 A Fiji-40 Stearate
(Surfactants) - 0.10 - 0.10 1.00 Sorbitan stearate
(Surfactants) - 0.10 - 0.10 1.00 Caprylic / capric triglyceride 6.00 6.00 6.00 6.00 6.00 Citrus Spices 0.10 0.10 0.10 0.10 0.10 Sucrose acetate isobutyrate
(Weight control agent) 3.14 3.05 - - - B Purified water Balance Balance Balance Balance Balance glycerin 10.0 10.0 10.0 10.0 10.0 Carbomer 0.20 0.20 0.20 0.20 0.20 Methylparaben 0.20 0.20 0.20 0.20 0.20

The content of the specific gravity regulator was calculated by the following formula;

1.0 = (specific gravity modifier specific gravity X ratio of specific gravity modifier in oil phase)

+ (Specific gravity of remaining oil phase X ratio of remaining oil components in oil phase)

Specific gravity values of components used in Examples and Comparative Examples are as follows;

Specific gravity regulator: 1.11

Caprylic / Capric Triglycerides: 0.945

Spices: 0.850

Sorbitan stearate: 1.0

Fiji-40 Stearate: 1.1

Experimental Example  1. Determination of stability of formulation

In order to test the stability of the formulation, Examples 1-2 and Comparative Examples 1-3 were stored in transparent glass jars in a thermostat at 25 ° C., 40 ° C., 45 ° C. and 50 ° C., and the daily cycle cycling test (1 The storage temperature was changed in one cycle, and specific change conditions were 1 hour -10 ° C for 6 hours; 2 step 25 ° C for 6 hours; 3 step 45 ° C for 6 hours; and 4 step 25 ° C for 6 hours). Was evaluated for stability. Observation of the storage stability of the formulation was evaluated according to the following criteria and the results are summarized in Table 2.

(Circle): Good, (triangle | delta): It differs from the beginning, Ｘ: The oil phase and the water phase are separated.

Experiment item Example 1 Example 2 Comparative Example 1 Comparative Example 2 Comparative Example 3 25 ℃ 1 week ○ ○ X △ ○ 4 weeks ○ ○ X △ ○ 40 ℃ 1 week ○ ○ X △ ○ 4 weeks ○ ○ X X ○ 45 ° C 1 week ○ ○ X X ○ 4 weeks ○ ○ X X ○ 50 ℃ 1 week ○ ○ X X ○ 4 weeks △ ○ X X ○ cycling
exam 1 week ○ ○ X △ ○ 4 weeks ○ ○ X X ○

As can be seen in Table 2, the compositions of Examples 1 and 2 were stable under all temperature conditions similar to Comparative Example 3 containing a large amount of surfactant, but Comparative Example 1 does not contain both surfactant and specific gravity control agent The composition of the formulation was unstable at all temperature conditions, the composition of Comparative Example 2 containing a small amount of surfactant and no specific gravity control agent was found to be unstable at most temperature conditions.

Experimental Example  2. Specific gravity measurement

Specific gravity of phase A and the final formulation prepared in Examples 1-2 and Comparative Examples 1-3 were measured using TOYOSEIKI, DENSIMETER-H.

Example 1 Example 2 Comparative Example 1 Comparative Example 2 Comparative Example 3 Specific gravity of A phase 1,000 1,000 0.943 0.947 0.970 Specific gravity of the final formulation 0.999 1,000 0.989 0.992 0.997

As can be seen in Table 3, in the case of Examples 1 and 2, the specific gravity of the phase A phase, which is oil phase, was higher than that of Comparative Examples 1 to 3 due to the inclusion of the specific gravity regulator, and also showed a similar value to the specific gravity of the final formulation. On the other hand, in the case of Comparative Examples 1 to 3, the specific gravity of the A phase was slightly lower than that of the final formulation, which is interpreted as the main reason that the comparative example is poorer in formulation stability than the Example.

Claims (13)

The cosmetic composition comprising a solubilized and emulsified oil phase layer and a water phase layer containing a specific gravity control agent, does not contain a surfactant or 0.5% by weight or less based on the total weight of the composition.
The cosmetic composition according to claim 1, wherein the cosmetic composition comprises 0.1 wt% or less of the total weight of the composition.
The cosmetic composition according to claim 1, wherein there is no difference between the specific gravity of the oily layer including the specific gravity regulator and the specific gravity of the final composition or 0.02 or less.
The cosmetic composition according to claim 1, wherein the specific gravity modifier has a specific gravity of at least 0.990 at 20 ° C.
The cosmetic composition according to claim 1, comprising a specific gravity adjusting agent in the following amount:
1.0 = (specific gravity modifier specific gravity X ratio of specific gravity modifier in oil phase)
+ (Specific gravity of remaining oil phase X ratio of remaining oil components in oil phase)
The method of claim 1, wherein the specific gravity control agent is a glycerol ester of dammar resin (bromoglyceride), brominated vegetable oil (brominated vegetable oil), sucrose acetate isobutyrate (SAIB), sebum- 7. A cosmetic composition of at least one member selected from the group consisting of PPG-7 succinic acid copolymer and polyglyceryl-6 octacaprylate.
The cosmetic composition according to claim 1, wherein the oily layer comprises 0.01 to 30% by weight based on the total weight of the composition.
The cosmetic composition of claim 1, wherein the cosmetic layer comprises 70 to 99.99 wt% of the total weight of the composition.
The cosmetic composition according to claim 1, wherein the oily layer comprises an oil or a perfume.
The cosmetic composition according to claim 1, wherein the aqueous layer comprises purified water, a polyol, a preservative, or an aqueous thickener.
A cosmetic comprising the composition of any one of claims 1 to 10.
12. The method of claim 11, wherein the cosmetic is a flexible cosmetics, astringent cosmetics, nourishing cosmetics, nutrition cream, massage cream, eye cream, eye essence, essence, cleansing cream, cleansing lotion, cleansing foam, cleansing water, pack, powder, body lotion , Body cream, body essence, body cleanser, sunscreen cream, hair dye, shampoo, rinse, toothpaste, mouthwash, hair dresser, wool, lotion, ointment, gel, cream, patch and spray Cosmetics.
(a) mixing the specific gravity regulator in the oil phase; And
(b) mixing the oily layer and the aqueous layer including the specific gravity modifier to produce a solubilization and emulsion formulation;
The manufacturing method of the cosmetic composition of Claim 1.