KR101359810B1 - Gel-form cosmetic compositions and hair cosmetics comprising the same - Google Patents

Abstract

The present invention relates to a silicone-medium-water emulsion gel cosmetic composition comprising 5 to 20 parts by weight of silicone surfactant, 2 to 5 parts by weight of water and 5 to 30 parts by weight of ethanol, and hair cosmetics including the same. The gel cosmetic composition of the present invention is excellent in transparency and high temperature stability, and has an excellent function of stably maintaining additives such as pigments and / or pearling agents contained therein. Accordingly, the cosmetic for hair comprising the composition of the present invention is excellent in the arrangement and moisturizing effect of the hair, there is no stickiness at the time of application, and excellent in feeling, and it maintains the pigments and pearls contained in a stable manner, and differentiates the appearance. The advantage is that it can be planned.

Silicone surfactant, ethanol, water, silicone-medium-water, gel-like, emulsion, dimethicone, cyclomethicone

Description

Gel-form cosmetic compositions and hair cosmetics comprising the same}

The present invention relates to a silicone-water-in-silicone emulsion type gel cosmetic composition containing water and ethanol and hair cosmetics comprising the same.

Hair performs both a function of protecting the human body from direct sunlight from the sun, cold and external shock, and a cosmetic function that influences the impression of a person.

Due to the cosmetic function as described above, the human desire to create a variety of transformation and maintenance of the shape of the hair, is very large. Accordingly, various methods of permanent and temporary deformation of hair have been attempted. Permanent transformation of hair is mainly due to the use of chemical raw materials that react with the hair, which has the side effect of causing hair damage.

Products for protecting the hair from such damage include largely washoff-type emulsion products (rinse and treatment, etc.); It can be divided into rib-on products such as creams, lotions and essences. Among them, the rib-on type products that do not need to be washed out are easy to use and can be applied at any time, and various products related to this have been released steadily.

U.S. Patent No. 4,938,954 discloses hair waxes comprising polyethylene glycol, hydrogenated castor oil, glycerol, and the like, and U.S. Patent No. 5,993,832 includes water-containing certain silicone surfactants and acidic compounds containing one or more anionic groups. An oil-in-water emulsion cosmetic composition is disclosed. In addition, Japanese Patent Application Publication No. 06-78217 discloses an emulsified hair cosmetic composition containing a dimethylpolysiloxane polyoxyalkylene copolymer, ionic and nonionic surfactants, silicone oil, and the like of a specific cloud point.

These techniques are products using emulsion type or carbomer. However, the cosmetics disclosed in the above-mentioned prior art all contain a large amount of water, and thus there is a problem in that the amount of oil or silicone is limited or cannot be manufactured in a gel form. As a solution to these drawbacks, it is possible to think of a product consisting only of oily raw materials without containing aqueous. However, most of the products are very sticky, there is a problem that the feeling of use is poor to use as a cosmetic for hair.

Recently, in order to make up for the above disadvantages, an essence-type ribon product composed of cyclomethicone and / or dimethicone has been developed. The product is colorless and transparent, non-sticky, and has the advantage of providing gloss to the hair. However, such a product has a disadvantage in that it is difficult to provide a differentiation in appearance since the high temperature stability and the retention stability of additives such as pigments and pearls are very poor.

The present invention has been made in consideration of the above-described problems of the prior art, and relates to a gel cosmetic composition and a hair cosmetic comprising the above, which are capable of stably maintaining a pigment and / or pearl agent contained therein and having high temperature stability.

The present invention as a means for solving the above problems, 5 to 20 parts by weight of silicone surfactant; 2 to 5 parts by weight of water; And it provides a silicone-water-emulsion emulsion gel cosmetic composition comprising 5 to 30 parts by weight of ethanol.

It is preferable that the silicone surfactant used in the gel cosmetic composition of the present invention contains poly (dialkylsiloxane) containing polyoxyalkylene as a side chain.

In the silicone surfactant of the gel cosmetic composition of the present invention, the polyoxyalkylene is preferably at least one selected from the group consisting of polyoxyethylene and polyoxypropylene.

The weight ratio of polyoxyalkylene and poly (dialkylsiloxane) in the silicone surfactant of the gel cosmetic composition of the present invention is preferably 0.025 to 0.05.

In addition, the number of moles of polymerization of the polyoxyalkylene in the silicone surfactant of the gel cosmetic composition of the present invention is preferably 10 to 27 moles.

The gel cosmetic composition of the present invention may further comprise a silicone oil.

The present invention also provides a cosmetic for hair comprising the gel cosmetic composition according to the present invention as another means for solving the above problems.

The gel cosmetic composition of the present invention is excellent in transparency and high temperature stability, and has an excellent function of stably maintaining a pigment and / or pearl agent contained therein. Accordingly, in the case of hair cosmetics including the composition of the present invention, the hair is excellent in ordering and moisturizing, there is no stickiness at the time of application, and the feeling is excellent, and the pigments and / or pearls included are stably maintained, There is an advantage that can be differentiated.

The present invention relates to a water-in-silicone emulsion gel cosmetic composition comprising 5 to 20 parts by weight of silicone surfactant, 2 to 5 parts by weight of water and 5 to 30 parts by weight of ethanol. In the gel cosmetic composition of the present invention, the silicone surfactant forms a hydrogen bond with water to form a network structure, so that the stability and retention function of the additive are excellent. In addition, the cosmetic composition of the present invention further includes ethanol, and has the advantage of having excellent high temperature stability and transparency.

Hereinafter, the gel cosmetic composition of the present invention will be described in detail.

The silicone surfactant contained in the gel cosmetic composition of the present invention forms a hydrogen bond with water to impart a network structure to the composition. Accordingly, the silicone surfactant may play a role of improving the stability of the composition and the various additives included and thickening the silicone oil (such as dimethicone and cyclomethicone) to be described later. Silicone surfactants are generally composed of a hydrophobic main chain including a hydrophilic side chain such as polyether, and have an advantage of excellent surface activity and chemical stability. In this case, the repeating units forming the hydrophobic main chain include -Si (Alkyl) ₂ O) _n -,-(Si (Alkyl) ₂ -CH ₂ ) _n-, and / or -Si (Alkyl) ₂ )-and the like. have. In the present invention, such a general surfactant may be used without limitation, but it is preferable to include poly (dialkylsiloxane) containing polyoxyalkylene as a side chain. In the above, the poly (dialkylsiloxane) constituting the main chain of the silicone surfactant is a hydrophobic component, and a preferred example thereof is poly (dimethylsiloxane). In addition, the polyoxyalkylene included as a side chain in the above is a hydrophilic component of the silicone surfactant, and specific examples thereof may include one or more selected from the group consisting of polyoxyethylene and polyoxypropylene, but is not limited thereto.

In the silicone surfactant of the present invention, the weight ratio (hydrophilic side chain / hydrophobic main chain) of the hydrophilic side chain (polyoxyalkylene) and the hydrophobic main chain (poly (dialkylsiloxane)) is preferably in the range of 0.025 to 0.05. It is more desirable to have a ratio of / 360. If the ratio is less than 0.025, the water content must be increased for gel formation, which may lower the transparency of the gel. Moreover, when the said ratio exceeds 0.05, there exists a possibility that the elasticity of a gel may fall. In addition, the number of moles of polymerized polyoxyalkylene such as polyoxyethylene or polyoxypropylene forming a hydrophilic side chain in the silicone surface-active agent of the present invention is 10 to 27 moles, preferably 15 to 20 moles, more preferably. It is about 19 moles. If the number of moles of polymerization is less than 10, the proportion of the hydrophilic groups decreases, thereby decreasing the surface active ability of the water-soluble substance, which may cause phase separation. In addition, when the number of moles of polymerization exceeds 27, since the HLB value of the surfactant is increased, the content of water must be relatively increased, thereby preventing the formation of a silicone-in-water type emulsion.

Although not particularly limited, such silicone surfactant is preferably included in an amount of 5 to 20 parts by weight, more preferably 5 to 15 parts by weight, based on the total weight of the composition of the present invention. If the content is less than 5 parts by weight, there is a fear that the phase separates in the composition or the stability of the gel is lowered. In addition, when the content exceeds 20 parts by weight, there is a fear that the gel-like composition becomes totally opaque or that an oil-in-water emulsion is formed.

The cosmetic composition of the present invention is also characterized by containing a small amount of water. As mentioned above, the conventional composition used for the use of hair cosmetics, etc. mostly contains a large amount of water. However, when it contains a large amount of water, the content of other active ingredients such as silicone oil is relatively reduced, there is a problem that it is difficult to form a transparent gel-like composition. However, in the present invention, the amount of water included is limited to the minimum. The water forms a hydrogen bond with the aforementioned silicone surfactant to improve the stability of the whole composition, and also serves to stably hold additives such as pearls. In addition, by acting as a solvent of the component, such as water-soluble pigments or plant extracts, the composition can be applied to more various applications. Although not particularly limited, it is preferable that water is included in the composition of the present invention in an amount of 2 to 5 parts by weight, preferably 2 to 3 parts by weight. If the content is less than 2 parts by weight, the stability of the composition at room temperature and high temperature may be lowered. If the content is more than 5 parts by weight, the transparent gel-like composition may not be produced.

The composition of the present invention also further comprises ethanol, which serves to improve long term stability and transparency. Such ethanol is included in the amount of 5 to 30 parts by weight, preferably 5 to 15 parts by weight, more preferably 7 to 10 parts by weight in the composition of the present invention. The silicone-medium-water type emulsions of the present invention consist of the principle that a gel network is formed by hydrogen bonding of a silicone surfactant and water. In this case, the hydrogen bond is formed through the hydrophilic backbone portion of the water and the silicone surfactant, and water molecules must be dispersed very finely to form transparent and stable hydrogen bonds. However, over time, as the attraction between water molecules increases, gel stability may decrease and phase separation may occur. Therefore, in order to form a more stable gel network, it is important to disperse water more stably and finely. In consideration of this point, the present invention includes a specific content of ethanol, and since the ethanol has an affinity for both water and silicon, it may be freely present between water, silicon surfactant, and volatile silicon. In particular, hydrogen bonds may be formed with water and silicone surfactants, which makes it easier to disperse the water molecules, thereby improving the stability of the overall gel composition. In the present invention, if the ethanol content is less than 5 parts by weight, there is a risk that phase separation occurs due to insufficient long-term stability of the gel because it is not sufficient to perform the above-mentioned role of ethanol. There exists a possibility that gel stability may rather fall by volatility.

The composition of the present invention may also further comprise a silicone oil. The type of silicone oil that can be used in the present invention is not particularly limited, and examples thereof include one or more selected from the group consisting of dimethicone and cyclomethicone. In the present invention, the content of the silicone oil is preferably 50 to 85 parts by weight.

The silicone oil included in the composition of the present invention may be dimethicone. Since the composition of the present invention contains volatile components such as ethanol and / or cyclomethicone, there is a concern that whitening may occur when applied to the skin, etc., and when dimethicone is included, such a phenomenon may be prevented. . Although not specifically limited, it is preferable to use dimethicone of low viscosity from a viewpoint of gel formation ability, stability, etc. of a composition, and it is more preferable to use dimethicone whose viscosity is 6-20 cst. If the viscosity is less than 6 cst, skin whitening may occur. If the viscosity is more than 20 cst, the viscosity of the composition may be excessively lowered to form a liquid composition, and the stability of the additives such as pearls may easily precipitate. There is concern. The content of such dimethicone can be appropriately controlled according to the desired usability and / or viscosity, and is not particularly limited, but is preferably 0.5 to 10 parts by weight. If the content is less than 0.5 parts by weight, problems such as deterioration of feeling of use and occurrence of whitening may occur. If the content is more than 10 parts by weight, gel formation ability and stability may be deteriorated.

Silicone oils that may be included in the compositions of the present invention may also be cyclomethicone. It has a volatility, and serves to improve the usability and glossiness. Although it does not specifically limit, In this invention, it is preferable to use cyclopentasiloxane as cyclomethicone. In addition, the content of the cyclomethicone is also not particularly limited, but is preferably 50 to 75 parts by weight. If the content is less than 50 parts by weight, there is a fear that the content of water in the composition is relatively increased, so that a transparent gel phase may not be obtained, and if it is more than 75 parts by weight, there is a fear that a white oil-in-water type emulsion is obtained. have.

The composition of the present invention may also further comprise one or more components selected from the group consisting of water soluble pigments, plant extracts and pearls. The cosmetic composition of the present invention is formed of a gel composition having excellent stability and excellent transparency. Such excellent transparency of the gel cosmetic composition of the present invention can fully exhibit the efficacy of the ingredients, such as added pigments and pearls, to achieve appearance differentiation. The specific types of water-soluble pigments, plant extracts and pearls that can be used in the present invention are not particularly limited, and various components generally known in the art may be used without limitation.

The method for preparing the cosmetic composition of the present invention using each of the above-mentioned components is not particularly limited, and general methods known in the art may be used without limitation.

For example, the composition of the present invention is stirred by mixing a silicone surfactant and an oil phase component, such as cyclomethicone and / or dimethicone, and then stirred until ethanol and water are added sequentially to have transparency Can be prepared by defoaming. At this time, the stirring conditions and the like are not particularly limited and may be appropriately set according to the content of each component and the intended use.

The invention also relates to a cosmetic for hair comprising the composition of the invention described above. As described above, the composition of the present invention is excellent in transparency and stability, and can stably retain additives such as pearls and / or pigments included. Therefore, the cosmetic of the present invention containing such a composition has the advantage of excellent usability and excellent performance such as hair trimming, moisturizing and gloss.

Cosmetics of the present invention as described above can be produced by the manufacturing method generally used in the cosmetic field, using the cosmetic composition of the present invention as an active ingredient, the method is not particularly limited.

When the cosmetic composition of the present invention is applied as a cosmetic, its formulation is not particularly limited, for example, the cosmetic of the present invention may be prepared in the form of a rinse, treatment, cream, lotion and / or essence.

Cosmetics of the present invention may also further comprise general additives in the cosmetic field. The additives used in this case can be appropriately selected according to the use thereof, and are not particularly limited. Examples thereof include antibiotics, binders, disintegrants, diluents, lubricants, stabilizers, preservatives, fragrances, oils, water, surfactants, humectants, And at least one selected from the group consisting of lower alcohols, thickeners, chelating agents, pigments and preservatives.

Hereinafter, the present invention will be described in more detail with reference to examples according to the present invention and comparative examples not according to the present invention. However, the scope of the present invention is not limited by the examples presented below.

Example  1 and 2

Gel-like cosmetic compositions were prepared using the compositional ingredients of Examples 1 and 2 shown in Table 1 below using general methods in the cosmetic field. Specifically, cyclopentasiloxane, silicone surfactant, and dimethicone were mixed at the composition ratios shown in Table 1, and stirring was performed until the silicone surfactant was completely released. In this case, the surfactant used was about 9/360 in the ratio of the hydrophilic side chain and the hydrophobic main chain (hydrophilic side chain / hydrophobic main chain), and the hydrophilic side chain had 19 moles of polymerized polyoxyethylene and polyoxypropylene, respectively. A surfactant which is poly (dimethylsiloxane) was used.
Subsequently, ethanol was added to make it completely transparent, and water and dyes were slowly added in small portions. The mixture was stirred for at least about 30 minutes until the mixture became completely transparent, and a defoaming process was performed to prepare a target composition (in Table 1, the composition "To 100" of cyclomethicone was cyclo in balance to other components added to the composition. Means that the total weight part is adjusted to 100 by adding methicone).

Comparative Example  1 to 3

A cosmetic composition was prepared in the same manner as in Examples 1 and 2, except that the composition components of Comparative Examples 1 to 3 shown in Table 1 were used.

[Table 1] Example  1 and 2 and Comparative Example  Composition from 1 to 3

Example  One Example  2 Comparative Example  One Comparative Example  2 Comparative Example  3 Silicone surfactant 20.0 20.0 20.0 20.0 5.0 Cyclo
Pentasiloxane To 100 To 100 To 100 To 100 To 100 Dimethicone
(6 cst ) 5.0 - 5.0 5.0 5.0 Dimethicone
(20 cst ) - 5.0 - - - ethanol 10.0 10.0 - 10.0 10.0 Purified water 3.0 3.0 3.0 10.0 3.0 receptivity
Pigment 0.0003 0.0003 0.0003 0.0003 0.0003 Pearl 0.025 0.025 0.025 0.025 0.025

<Formulation stability evaluation>

The stability of 4 weeks at 0 ° C., room temperature and 50 ° C. of the transparent cosmetic composition prepared in Examples 1 and 2 and Comparative Example 1 was visually observed, and the results are shown in Table 2 below.

TABLE 2 Evaluation of Formulation Stability

Example  One Example  2 Comparative Example  One
Room temperature 1 week stability stability stability 2 weeks stability stability stability 3 weeks stability stability detach 4 weeks stability stability detach
50 ℃
1 week stability stability detach 2 weeks stability stability detach 3 weeks stability stability detach 4 weeks stability stability detach
0 ℃ 1 week stability stability stability 2 weeks stability stability stability 3 weeks stability stability stability 4 weeks stability stability stability

As shown in Table 2, for Examples 1 and 2 according to the present invention, it was shown to maintain long-term stability in the test of formulation stability at room temperature, 50 ℃ and 0 ℃. Specifically, in Example 2 using a dimethicone having a viscosity of 20 cst, the viscosity was slightly lower than that of Example 1 using a dimethicone having a viscosity of 6 cst, but both Examples 1 and 2 showed excellent stability for 4 weeks. Appeared to be visible.

On the contrary, in Comparative Example 1, which does not contain ethanol, a transparent gel phase was formed immediately after preparation, but phase separation occurred in one week at 50 ° C., and phase separation occurred at 3 weeks even at room temperature, indicating that high temperature stability was deteriorated. In addition, Comparative Example 2 containing an excessive amount of water had a problem of being formed into an opaque gel cosmetic composition from the beginning. In addition, for Comparative Example 3, which contained a small amount of silicone surfactant, the phases were separated immediately after preparation, indicating a very poor formulation stability. For the same reason, Comparative Examples 2 and 3 were excluded from the formulation stability test.

Claims (15)

5 to 20 parts by weight of a silicone surfactant which is a poly (dialkylsiloxane) containing as a side chain a polyoxyalkylene comprising at least one selected from the group consisting of polyoxyethylene and polyoxypropylene; 2 to 5 parts by weight of water; 50 to 85 parts by weight of silicone oil; And Silicone-in-water emulsion gel cosmetic composition comprising 5 to 30 parts by weight of ethanol. delete delete The method of claim 1, Gel cosmetic composition, characterized in that the weight ratio of polyoxyalkylene and poly (dialkylsiloxane) is 0.025 to 0.05. The method of claim 1, Polyoxyalkylene is a gelled cosmetic composition, characterized in that the number of polymerization moles 10 to 27 moles. The method of claim 1, Gel cosmetic composition, characterized in that the content of 5 to 15 parts by weight of ethanol. delete The method of claim 1, Silicone oil is a gel cosmetic composition, characterized in that dimethicone. 9. The method of claim 8, Gel composition of the dimethicone is characterized in that the viscosity of 6 to 20 cst. The method of claim 1, Silicone oil is a gel cosmetic composition, characterized in that the cyclomethicone. 11. The method of claim 10, Cyclomethicone is cyclopentasiloxane, The gel cosmetic composition characterized by the above-mentioned. The method of claim 1, Gel cosmetic composition, characterized in that it further comprises one or more selected from the group consisting of pigments, plant extracts and pearls. Hair cosmetics comprising the gel cosmetic composition according to claim 1. 14. The method of claim 13, Hair cosmetics, characterized in that the formulation is at least one selected from the group consisting of rinse, treatment, cream, lotion and essence. 14. The method of claim 13, At least one additive selected from the group consisting of antibiotics, binders, disintegrants, diluents, lubricants, stabilizers, preservatives, fragrances, oils, water, surfactants, humectants, lower alcohols, thickeners, chelating agents, pigments and preservatives Hair cosmetics, characterized in that.