KR102187759B1 - Stick tipe uv blocking cosmetic composition - Google Patents

Abstract

The present invention relates to a stick type UV-blocking cosmetic composition. According to one aspect of the present invention, the stick type UV-blocking cosmetic composition has excellent hardness to be prevented from being broken or crushed when a user applies a cosmetic material on the skin using the stick type UV-blocking cosmetic composition. Moreover, the cosmetic composition has excellent skin application properties and a smooth skin touch while having excellent hardness, and provides the skin with the feeling of refreshment and a moisturization effect as the moisture included in the cosmetic composition is discharged to the outside when the cosmetic composition is applied to the skin. The cosmetic composition has a stable formulation, and thus the change in formulation due to a temperature change can be prevented. The stick type UV-blocking cosmetic composition comprises a UV blocking part, an emulsion stabilizing part, an oil phase, and a water phase.

Description

Stick-type cosmetic composition for UV protection {STICK TIPE UV BLOCKING COSMETIC COMPOSITION}

The present invention relates to a stick-type cosmetic composition for blocking UV rays.

Recently, as interest in the adverse effects of ultraviolet rays such as skin aging, skin dryness, and skin cancer on the human body has increased, public interest in UV-blocking products has increased.

Among them, sunscreen cosmetics can be easily purchased by general consumers and are simple to use, so demand is increasing rapidly.

Sunscreen cosmetics were developed and distributed in liquid and cream forms in the early stages of development, but liquid and cream forms had to be rubbed on palms or fingers, raising the problem of being unsanitary and uncomfortable. Therefore, cake, solid, spray type, etc. are continuously being developed.The cake or solid type has the hassle of using a sponge or spoon to apply the skin, and the spray type has a large skin irritation due to the spray pressure. There is a problem in that it is difficult to evenly apply, so there is a limitation that the use is limited.

In order to solve the problems of such existing formulations, recently, stick-type sunscreen cosmetics have been developed. There are currently commercially available stick-type sunscreens, such as water-in-water type, water-dispersion type, and water-in-oil type, among which the water-in-water type and water-dispersion type have disadvantages of weak makeup lasting power and stability at high temperatures. The preference for cosmetics is relatively high. However, the water-in-oil type is brittle or exhibits a problem that the feeling of use is stiff and the application property is poor due to the inorganic sunscreen.

KR 10-2013-0048967 A

In one aspect, an object of the present invention is to provide a stick-type cosmetic composition excellent in formulation stability.

In one aspect, it is an object of the present invention to provide a stick-type cosmetic composition capable of delivering sufficient moisture to the skin by releasing moisture contained in the cosmetic product when applied to the skin.

In one aspect, the object of the present invention is excellent in hardness, so that problems such as crushing and breaking do not occur when stick-type cosmetics are applied to the skin, and a feeling of use such as skin spreadability, refreshing sensation, soft touch sensation, and refreshing finish is improved. It is to provide an excellent UV-blocking stick-type cosmetic composition.

In order to achieve the above object, the present invention, in one aspect, i) a sunscreen unit including an organic sunscreen; ii) Polyglyceryl-4 Diisostearate/Polyhydroxystearate/Sebacate; And an emulsification stabilizing unit including dimethicone; iii) oil phase; And iv) it provides a stick-type cosmetic composition for sun protection comprising a water phase (water phase).

In one aspect of the present invention, the UV-blocking stick-type cosmetic composition has excellent hardness so that when a user applies the cosmetic to the skin using a stick-type cosmetic, the stick-type cosmetic is not broken or crushed. In addition, the stick-type cosmetic composition of the present invention has excellent hardness and excellent skin spreadability and a soft skin touch. In addition, when the cosmetic composition is applied to the skin, moisture contained in the composition is released to the outside, thereby imparting a refreshing sensation and moisturizing effect to the skin due to the water splash effect. In addition, the cosmetic composition has a stable formulation, so there is no problem of formulation deformation due to temperature changes.

Hereinafter, the present invention will be described in detail.

Hereinafter, each configuration will be described in more detail, but this is only an example, and the scope of the present invention is not limited by the following content.

In one aspect, the present invention is i) a sunscreen unit comprising an organic sunscreen; ii) Polyglyceryl-4 Diisostearate/Polyhydroxystearate/Sebacate; And an emulsification stabilizing unit including dimethicone; iii) oil phase; And iv) comprising a water phase (water phase), UV-blocking stick-type cosmetic composition.

The dimethicones of the emulsification stabilizing part are lauryl polyglyceryl-3 polydimethylsiloxyethyl dimethicone, lauryl PEG-9 polydimethylsiloxyethyl dimethicone (Lauryl PEG-9 Polydimethylsiloxyethyl Dimethicone), Cetyl PEG/PPG-10/1 Dimethicone, and Lauryl PEG-8 Dimethicone It may include one or more selected from the group consisting of, but is not limited thereto.

In one aspect, the emulsion stabilizer may be included in an amount of 0.1 to 4% by weight, based on the total weight of the composition. Preferably, the emulsion limiting unit may be included in an amount of 0.5 to 2.5% by weight, or preferably 1 to 2% by weight, based on the total weight of the composition.

Specifically, polyglyceryl-4 diisostearate/polyhydroxystearate/sebacate of the emulsion stabilization part may be included in an amount of 0.1 to 1.5% by weight, based on the total weight of the composition, and preferably, 0.3 to 1.5 It may be included in wt%, preferably 0.3 to 1.2 wt%.

In addition, the dimethicone may be included in an amount of 0.1 to 2% by weight, preferably, 0.3 to 1.5% by weight, preferably, 0.3 to 1.2% by weight, based on the total weight of the composition.

In addition, in one aspect, the polyglyceryl-4 diisostearate/polyhydroxystearate/sebacate and dimethicone are in a weight ratio of 1:0.1 to 1:3, preferably 1:0.5 to 1: It can be included in a weight ratio of 2.

The stick-type cosmetic composition of the present invention can exhibit an appropriate hardness when the emulsion stabilizer is included in the above type, content, and ratio, has excellent formulation stability according to temperature, and moisture contained in the composition when applied to the skin. The water splash effect emitted to the outside is excellent. Specifically, when the emulsification stabilizer is included in a small amount than the above range, the emulsion is not stabilized and the formulation stability is deteriorated, and when it is included in an excessive amount, the water splash effect decreases, and a stick-type formulation having the desired hardness cannot be obtained.

In one aspect, the oil phase portion, a hardness forming agent; Binders; And it may include one or more selected from the group consisting of oils.

In one aspect, the hardness forming agent may include waxes having a melting point of 70 degrees Celsius (℃) or higher.

The present invention includes waxes having a melting point of 70° C. or higher, thereby ensuring a level of hardness suitable for applying the stick-type cosmetic composition to the skin, minimizing stickiness after applying the skin, and giving a fresh finish after application. can do.

The hardness forming agent may include one or more of polyethylene, and microcrystalline wax. The hardness forming agent is not limited, but it is preferable to avoid dextrin palmitate. When dextrin palmitate is included in the composition, it is not possible to secure an appropriate level of hardness for application to the skin, the water splash effect does not appear, the feeling of use is significantly reduced, and the UV blocking effect is relatively reduced even if the same amount of sunscreen is included. Is displayed.

The polyethylene may be included in 5 to 15% by weight based on the total weight of the composition. In addition, the polyethylene may preferably be included in 7 to 13% by weight, preferably 8 to 12% by weight based on the total weight of the composition.

In addition, the microcrystalline wax may be included in an amount of 0.1 to 4% by weight, preferably 0.5 to 2.5% by weight, preferably 0.8 to 2% by weight based on the total weight of the composition.

When the hardness forming agent is included in the above content, it can exhibit an appropriate hardness when applied to the skin, has excellent formulation stability according to temperature, and has excellent water splash effect in which moisture contained in the composition is released to the outside when applied to the skin. And, it has excellent feeling of use such as skin applicability and soft touch, and can exhibit a relatively excellent UV blocking effect when the same amount of a UV blocker is included.

In one aspect, the binder is a vinyl dimethicone/methicone silsesquioxane crosspolymer, synthetic fluorphlogopite, silica * dimethicone, and polymethylsilsesquiox Three or more selected from the group consisting of three people may be included, but the present invention is not limited thereto.

For example, the binder is i) Vinyl Dimethicone/Methicone Silsesquioxane Crosspolymer, ii) Synthetic Fluorphlogopite, and iii) Silica*Dimethicone, And it may include any one of polymethylsilsesquioxane.

In one aspect, the binder may be included in 8 to 18% by weight based on the total weight of the composition. Specifically, each of the vinyl dimethicone/methicone silsesquioxane crosspolymer, silica * dimethicone, and polymethylsilsesquioxane may be included in an amount of 1 to 10% by weight based on the total weight of the composition, preferably It may be included in 1 to 8% by weight, preferably 3 to 6% by weight. In addition, the synthetic fluorophlogopite may be included in 1 to 7% by weight, preferably 1 to 5% by weight, based on the total weight of the composition.

In one aspect, the composition of the present invention includes the three binders selected above, and when included in the content ratio, it can exhibit an appropriate hardness when applied to the skin, has excellent formulation stability according to temperature, and the composition when applied to the skin It has excellent water splash effect in which moisture contained inside is released to the outside, has excellent feeling of use such as skin applicability and soft touch, and can exhibit a relatively excellent UV blocking effect when the same amount of sunscreen is included. Specifically, when the binder is included in a small amount less than the above range, a stick-type formulation having the desired hardness cannot be obtained, the stability of the formulation is reduced, and when it is included in an excessive amount, stickiness occurs when used, and the spreadability (spreadability) is reduced. Occurs.

In one aspect, the oils are dicaprylyl carbonate (Dicaprylyl Carbonate), dimethicone (Dimethicone), propylheptyl caprylate (Propylheptyl Caprylate), ethylhexyl glycerin (Ethylhexylglycerin), glyceryl caprylate (Glyceryl Caprylate), and car It may include one or more selected from the group consisting of Caprylyl Glycol, but is not limited thereto.

The oils may be included in 10 to 40% by weight, preferably 17 to 30% by weight, or preferably 20 to 25% by weight based on the total weight of the composition.

In addition, the organic sunscreen is not limited, ethylhexylmethoxycinnamate (ETHYLHEXYL METHOXYCINNAMATE), ethylhexyl salicylate (Ethylhexyl Salicylate), diethylaminohydroxybenzoylhexyl benzoate (Diethylamino Hydroxybenzoyl Hexyl Benzoate), bis It may include at least one selected from the group consisting of ethylhexyloxyphenolmethoxyphenyltriazine (Bis-ethylhexyloxyphenolmethoxyphenyltriazine) and homosalate (Homosalate).

The organic sunscreen may be included in an amount of 10 to 35% by weight, preferably 13 to 30% by weight, or preferably 17 to 25% by weight, based on the total weight of the composition.

In one aspect, the composition of the present invention does not include an inorganic sunscreen, and when the inorganic sunscreen is included, compared to the case where the inorganic sunscreen is not included in terms of formulation stability, hardness, feeling of use, and water splash effect of the composition. Significantly lowered.

In addition, the aqueous portion of the composition may contain water and glycols.

The glycols may be, for example, butylene glycol, and the glycols may be included in an amount of 0.1 to 5% by weight, preferably 1 to 5% by weight, based on the total weight of the composition.

The water may be included in an amount of 12 to 40% by weight, based on the total weight of the composition. Preferably, water may be included in 15 to 35% by weight, or preferably 20 to 30% by weight, based on the total weight of the composition. When the content of water in the composition exceeds 40% by weight or less than 12% by weight, the hardness and formulation stability of the composition are greatly reduced, the water splash effect is insignificant, and the feeling of use may be greatly reduced.

In one aspect, the hardness of the composition may be 50 ~ 70 Dyne / cm ² . When the hardness of the stick-type formulation is less than 50, crushing occurs, and when it exceeds 70, the application property is greatly reduced, and the amount of cosmetic material delivered to the skin is significantly reduced, making it difficult to obtain UV protection effect, and it is easily broken. This can happen.

In one aspect, the composition may be a water-in-oil type. The composition of the present invention is a water-in-oil type, has excellent skin spreadability, excellent formulation stability at high temperatures, and excellent water resistance, and excellent makeup lasting power.

In one aspect, the present invention is a method of manufacturing a water-in-oil type stick-type cosmetic composition excellent in formulation stability.

Specifically, the method includes a sunscreen unit; Emulsion stabilization unit; Oily part; And it may include a step (A step) mixing the water phase.

The mixing step may further include a step (A-1 step) of mixing the oil phase part, and the mixing of the oil phase part may include mixing a hardness former, an emulsion stabilizer, and an oil, and then the mixture It may include mixing by adding a binder to. The hardness forming agent, emulsion stabilizer, and oils may include mixing for 5 minutes or more at about 800 to 1200 rpm at 60 to 100°C. In addition, the step of mixing the oil phase may include dispersing for 5 to 10 minutes after adding the binder.

The mixing step (A step) may include emulsifying by adding the oil phase to the sunscreen part and mixing, and then adding the water phase to the mixture. The emulsification may include pre-emulsification and this emulsification, and the pre-emulsification includes performing for about 10 to 20 minutes using a homomixer of 500 to 1000 rpm and a paddle of 25 to 30 rpm at about 60 to 100 °C. can do. In addition, the emulsification may include performing for about 8 to 10 minutes using a homomixer of 1,500 to 2500 rpm and a paddle of 25 to 30 rpm at 60 to 100 °C.

This manufacturing method is optimized to manufacture a stick-type cosmetic having a formulation stability and a desired hardness, and if the above manufacturing conditions (mixing order, mixing speed, time, temperature, etc.) are not satisfied, the desired stick-type cosmetic can be obtained. Can't.

Hereinafter, the present invention will be described in more detail through manufacturing examples and examples. These preparation examples and 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 construed as being limited by these examples.

[Production Example] Preparation of stick-type formulation

A stick-shaped cosmetic product (Examples and Comparative Examples) was prepared by mixing the ingredients described in Tables 1 to 3 below. Specifically, the sunscreen part is heated to 70~80℃ in the main emulsifying kiln, agi-mixed to dissolve it transparently, and then put B1 part, B2 part, and B3 part into the kiln and use a homo mixer at 80℃ to 800~1,200rpm. It was transparently dispersed and dissolved for at least 10 minutes. After that, B4 parts were added to the mixture and dispersed for 5 to 10 minutes using a homo mixer (1,000 rpm) and a paddle (30 rpm). The water phase was agi-mixed and dispersed in a water-phase dissolving tank, heated to 80℃, maintained at 80℃, and gradually added to the main emulsifying tank, and preliminary emulsification (Homo mixer: 500~1,000rpm, paddle 25~30rpm, 15min) was performed. . Thereafter, at 80° C., a stick-type formulation was prepared by performing the main emulsification (homo mixer: 1,500 to 2,500, paddle 25 to 30 rpm, 8 to 10 min).

[Table 1]

[Table 2]

[Table 3]

[Experimental Example]

[Experimental Example 1] Confirmation of hardness formation

The hardness was measured 1 day after preparing the stick-shaped cosmetics prepared in Preparation Example. The hardness was measured using a Fudoh rheometer, 1 mm Φ, 30 cm/mim, 10 mm Depth conditions.

When the hardness of the stick-type formulation is less than 50, a crushing phenomenon occurs, and when it exceeds 70, the application property is greatly reduced, and the amount of the cosmetic material to be paid off is significantly reduced, making it difficult to obtain a UV blocking effect. Therefore, the desired hardness was set to 50 to 70.

The results are as described in Table 4 below. Specifically, in the case of the present invention, all the hardness formation results were excellent, but compared to the present invention, when the type or content of the hardness forming agent, the content of oil, the type or content of the binder, and the type or content of the emulsifier are different (Comparative Example) A stick-shaped cosmetic product having the desired hardness could not be obtained.

[Table 4]

[Experimental Example 2] Stability evaluation of stick-type cosmetics

When measuring stick-type cosmetics after storage in each storage condition environment, the hardness was measured after storing for 3 hours in an environment at 25°C, and the stability of the formulation according to the change in temperature was measured. The hardness measurement was performed under the same conditions using the device used in Experimental Example 1. The degree was judged according to how well the hardness fits in the spec range (hardness 50-70).

The results are as described in Tables 5 to 7 below. As a result, in the case of the present invention, there was almost no change in hardness due to temperature change, but compared to the present invention, the type or content of the hardness forming agent, the content of oil, the type or content of the binder, the type or content of the emulsifier, and the water When the content was different (Comparative Example), it was confirmed that the hardness change according to the temperature was large and the formulation stability was low.

CYC is a cycle condition, and the cycle of -5°C (12hr) → 0°C (12hr) → 25°C (12hr) → 40°C (12hr) → -5°C (12hr) →... was repeated.

[Table 5]

◎: Stable hardness, ○: Stable hardness to some extent, ×: Unstable hardness

[Table 6]

◎: Stable hardness, ○: Stable hardness to some extent, ×: Unstable hardness

[Table 7]

◎: Stable hardness, ○: Stable hardness to some extent, ×: Unstable hardness

[Experimental Example 3] Water splash effect confirmation

The stick-type cosmetics of Examples and Comparative Examples were applied to the skin, and the water splash phenomenon was visually observed and evaluated.

As a result, in the case of the present invention (Example), it was confirmed that the water splash effect was excellent, but in the case of the comparative example, it was confirmed that there was little or no water splash effect (Table 8).

[Table 8]

◎: Water splash phenomenon occurs abundantly, ○: Water splash phenomenon to some extent occurs, △: Water splash phenomenon occurs very little, ×: No water splash phenomenon

[Experimental Example 4] Confirmation of UV blocking effect

After applying the stick-shaped cosmetics of Examples and Comparative Examples to the plate, SPF index (sun protection factor) and PA (protection grade of UVA) were checked using a UV transmittance analyzer. As a result, in the case of the present invention, the sunscreen effect is generally excellent, whereas the comparative examples generally have a poor sunscreen effect, and in particular, when only the inorganic sunscreen agent is contained, the sunscreen effect is poor, and the water content is excessive Even when included, it was confirmed that the UV blocking effect was not good. On the other hand, when the organic sunscreen and inorganic sunscreen were used in combination, it was confirmed that the feeling of use was significantly reduced compared to the present invention as can be seen in Experimental Example 5 below.

[Table 9]

[Table 10]

[Table 11]

[Experimental Example 5] Feeling sensory evaluation

A panel test was performed on 10 women in their 20s to 30s, using the stick-type cosmetics of Examples and Comparative Examples. Scores were given from 0 to 5 for each evaluation item, and the higher the effect was, the higher the score was given.

As a result, in the case of the present invention, adhesion (skin adhesion), spreadability (the degree of spreading on the skin), freshness and softness were all given high scores, but compared to the present invention, the type or content of the hardness-forming agent and the oil When the content, the type or content of the binder, and the type or content of the emulsifier were different (Comparative Example), a low score was given in all of the sensory evaluation items (Tables 12 to 14).

[Table 12]

[Table 13]

[Table 14]

Claims (15)

As a stick-type cosmetic composition for sun protection,
The composition,
i) a sunscreen unit including an organic sunscreen agent;
ii) Polyglyceryl-4 Diisostearate/Polyhydroxystearate/Sebacate; And an emulsification stabilizing unit including dimethicone;
iii) oil phase; And
iv) including a water phase,
The oil phase part includes a hardness forming agent including waxes,
The waxes include polyethylene and microcrystalline wax,
The polyethylene is included in 5 to 15% by weight, based on the total weight of the composition,
The microcrystalline wax, based on the total weight of the composition, containing 0.5 to 4% by weight, UV-blocking stick-type cosmetic composition. The method of claim 1,
Dimethicones of the emulsification stabilizing part,
Lauryl Polyglyceryl-3 Polydimethylsiloxyethyl Dimethicone, Lauryl PEG-9 Polydimethylsiloxyethyl Dimethicone, Three Til PEG / PPG-10 / dimethicone (Cetyl PEG / PPG-10 / 1 Dimethicone), and lauryl PEG-8 dimethicone (Lauryl PEG-8 Dimethicone) comprising at least one selected from the group consisting of , UV-blocking stick-type cosmetic composition. The method of claim 1,
The oil phase part,
Binders; And further comprising at least one selected from the group consisting of oils, UV-blocking stick-type cosmetic composition. The method of claim 1,
The hardness forming agent,
A stick-type cosmetic composition for sunscreen comprising waxes having a melting point of 70°C or higher. delete The method of claim 3,
The binder,
Selected from the group consisting of Vinyl Dimethicone/Methicone Silsesquioxane Crosspolymer, Synthetic Fluorphlogopite, Silica*Dimethicone, and Polymethylsilsesquioxane Three or more, UV-blocking stick-type cosmetic composition. The method of claim 3,
The oils are,
Dicaprylyl Carbonate, Dimethicone, Propylheptyl Caprylate, Ethylhexylglycerin, Glyceryl Caprylate, and Caprylyl Glycol Glycol) comprising at least one selected from the group consisting of, UV-blocking stick-type cosmetic composition. The method of claim 1,
The emulsion stabilizer, based on the total weight of the composition, containing 0.1 to 4% by weight, UV-blocking stick-type cosmetic composition. The method of claim 1,
The polyglyceryl-4 diisostearate/polyhydroxystearate/sebacate is contained in an amount of 0.1 to 1.5% by weight, based on the total weight of the composition,
The dimethicone, based on the total weight of the composition, contained in 0.1 to 2% by weight, UV-blocking stick-type cosmetic composition. delete The method of claim 3,
The binder, based on the total weight of the composition, contained in 8 to 18% by weight, UV-blocking stick-type cosmetic composition. The method of claim 3,
The oils, based on the total weight of the composition, containing 10 to 40% by weight, UV-blocking stick-type cosmetic composition. The method of claim 1,
The organic sunscreen is included in 15 to 35% by weight, based on the total weight of the composition,
The water-receiving part contains water, and the water is contained in an amount of 12 to 40% by weight, based on the total weight of the composition. The method of claim 1,
The hardness of the cosmetic composition is 50-70 Dyne/cm ² , UV-blocking stick-type cosmetic composition. The method according to any one of claims 1 to 4, 6 to 9, and 11 to 14,
The composition is a water-in-oil type, UV-blocking stick-type cosmetic composition.