KR101494272B1 - Oil-in-water cosmetic composition with easy cleaning - Google Patents

Abstract

The present invention relates to an underwater-type cosmetic composition, and more particularly, to a cosmetic composition for underwater use, which comprises 1) 15 to 40% by weight of an acrylate alkyl copolymer emulsion, 2) To 0.9 weight ratio of the cosmetic composition of the present invention. Further, the composition for underwater type cosmetic composition according to the present invention contains a high melting point wax, a thickener having a high water content, and butter, so that it can be cleaned with water alone, thereby facilitating cleansing.

Mascara, persistence, acrylate alkyl copolymer, thickening agent, ease of cleansing

Description

[0001] The present invention relates to an oil-in-water cosmetic composition with an easy-to-

The present invention relates to an underwater-type cosmetic composition, and more particularly, to a cosmetic composition for underwater use, which comprises 1) 15 to 40% by weight of an acrylate alkyl copolymer emulsion, 2) To 0.9 weight ratio of the cosmetic composition of the present invention. Further, the composition for underwater type cosmetic composition according to the present invention contains a high melting point wax, a thickener having a high water content, and butter, so that it can be cleaned with water alone, thereby facilitating cleansing.

The mascara is applied on the eyelashes and aims to make the eyelashes crisp by pulling up the eyelashes abundantly. Along with this purpose, the attribute that is considered important in mascara basically means that there should be no smearing and no dusting. This is a basic property of cosmetics and is required in all cosmetics. Especially, mascara is a cosmetic composition containing 5 to 20% by weight of inorganic black pigment and 0.5 to 3% by weight of carbon black pigment, The pigment is spread around the eyes. The pathway of mascara in this way is the blurring of water caused by tears that protect the retina in everyday life, persistent blinking of eyes, and sebum bleeding caused by sebum secreted from the sebaceous glands around the eyes.

 The eyelashes of oriental women consisted of 147.3 ± 23.8 of black hair with a thickness of 71.8 ± 22.5 μm and a length of 7.01 ± 1.89 mm and a Western female with a thickness of 60.7 ± 21.0 μm and a length of 7.10 ± 1.83 mm ± 25.6. Oriental women had a 120.5 ± 23.8 ° curling angle for their eyelashes, while 131.3 ± 25.6 ° for those of westerner, which was about 11 ° higher. In oriental women with such thick downward eyelashes compared to western women, it is likely that the eyelashes applied to the mascara will come into contact with the skin around the eyes. Because of this, blurring may appear larger than western women, so 'mascara' for oriental women is more demanding 'sustainability'. To meet this demand, many studies are continuing to improve the 'sustainability' of mascara and eyeliner, and mascara and eyeliner products are continuously being produced with enhanced durability. However, if only the persistence of the mascara or the eyeliner product is focused on, it is accompanied with disadvantages that cleansing is difficult. In fact, many people complain about the difficulty of cleansing, especially when using mascara. This is because, when cleansing with normal water without special cleansing products, the mascara water phase is easy to cleanse, but it is difficult to cleanse the oil phase including wax, surfactant and oil. If it is mistaken for this reason, the coloring matter rubs around the eyes while cleansing, and pigment deposition occurs, and the skin around the eyes is liable to become dull. To prevent this, strong physical force is exerted on the cleansing, which can cause stress on the skin and cause aging of the skin easily.

In order to increase the durability, it is generally considered to use an emulsion type film forming agent having high resistance to water or polymers having high polymerization degree. However, when these materials are not used carefully, cleansing may be difficult because they can not be easily dissolved in water during cleansing. On the contrary, when the film forming agent which is easily dissolved in water or the polymer having low polymerization degree is used for easy cleansing, the mascara is applied due to the lack of sustainability and after a short period of time, the under eye becomes black and the face can not be kept clean.

U.S. Patent No. 5,985,258 discloses a mascara composition comprising a combination of an insoluble polymer and a water-soluble polymer capable of forming a film, wherein the insoluble polymer is contained in an amount of from 3.0 to 60.0% by weight, more preferably from 4.0 to 40.0% by weight, 50.0% by weight, and ideally 5.0% by weight to 35.0% by weight. The insoluble polymer is composed of an acrylate polymer series and an acetate latex series. Examples of the water-soluble polymers include olefin oxide, vinylphenolide , Vinyl esters, vinyl alcohols, carboxylic acids and mixtures thereof, especially when polyvinylpyrrolidone and vinyl acetate / vinylpyridone are used to apply mascara, it is described that it is possible to increase the sustaining power and wash it off with water or soap have. However, the above patent has a disadvantage in that the content of the polymer is excessively used, so that the content of the mascara is stiff and the surface is not smooth when the drying is accelerated.

Japanese Laid-Open Patent Publication No. 2004-339082 discloses a polyvinyl pyrrolidone composition containing 50.0-98.0 wt% of water using an acrylic acid-based polymer and polyvinylpyrrolidone, 0.01-3.0 wt% of an acrylic acid-based polymer, 1.0-3.0 wt% of polyvinylpyrrolidone, The mascara composition is applied to the eyelashes before applying the general mascara. The mascara composition has an affinity for the eyelashes because it has a water phase, It is stated that it can give a high volume. This patent is a mascara composition that improves the volume function and cleansing power of the mascara applied as a base before applying the present mascara. It is a mascara composition that when used by itself, has a low volume due to the characteristics of water- .

Accordingly, the present inventors have made intensive studies to solve the problems of the prior art and to produce a mascara having excellent durability and ease of cleansing. As a result, they have found that an emulsion containing an acrylate alkyl copolymer emulsion in an amount of 15 to 40% The present invention can provide an oil-in-water type cosmetic composition which is easily cleansed by further containing a high melting point wax, a thickener having a high water content and butter, by controlling the oil component with respect to the weight of the emulsion at a weight ratio of 1: 0.1 to 0.9 And the present invention has been completed.

Accordingly, an object of the present invention is to provide an underwater-type cosmetic composition having excellent durability and easy cleansing.

In order to attain the above object, the present invention provides a composition comprising 1) 15 to 40% by weight of an acrylate alkyl copolymer emulsion, 2) a wax, a surfactant, An oil-in-water type cosmetic composition containing an oil component at a weight ratio of 1: 0.1 to 0.9.

The water-in-oil type cosmetic composition according to the present invention contains an acrylate alkyl copolymer emulsion and an oil-based component at a specific ratio so that an insoluble acrylate alkyl copolymer emulsion surrounds a wax and a surfactant that can be easily diffused by sebum It prevents blurring of sebum and improves the sustainability of water by increasing the persistence of water in daily life through insoluble film film. It is able to produce clear eyes by using high melting point wax, moisture content thickener and butter It was possible to cleanse with only lukewarm water by adding water, and it was easy to spread.

The present invention is intended to simultaneously enhance the 'sustainability' and 'ease of cleansing', which are basic properties of the above-mentioned contradictory mascara, and it is designed to maintain the basic function of the mascara that makes the eyes clear, and at the same time, The present invention relates to an underwater type cosmetic composition which can be cleansed with only lukewarm water without a cleansing product. In a preferred embodiment of the present invention, the underwater type cosmetic composition is a mascara composition.

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

In the present invention, in order to prevent blurring of an underwater type cosmetic composition, the contents are designed in such a manner as to enclose an oil phase wax, a surfactant, a dispersant and an oil, which cause a water phase containing a strong film- Respectively. That is, the water-in-oil type cosmetic composition according to the present invention comprises 1) 15 to 40% by weight of an acrylate alkyl copolymer emulsion, 2) an oil phase component containing wax and a surfactant in relation to the weight of the acrylate alkyl copolymer emulsion In a weight ratio of 1: 0.1 to 0.9, more preferably an oil component in a weight ratio of 1: 0.2 to 0.6.

Alkyl acrylate copolymer emulsion used in the present invention can be given _10~ C ₃₀ alkyl acrylate or acrylate / C _10~30 alkyl acrylate copolymers.

The acrylate alkyl copolymer emulsion, which is the insoluble film former, is preferably used in an amount of 15 to 40% by weight based on the total weight of the composition. If the content is less than 15% by weight, blurring may be caused. If the content is more than 40% by weight, the coated surface of the eye may not be smooth due to rapid drying rate and formation of a hard surface after drying.

The wax used in the oil phase component in the present invention may be selected from the group consisting of candelilla wax, carnauba wax, rice wax, rice bran wax, wax, beeswax, lanolin, montan wax, ozokerite, microcrystalline wax, soybean wax, paraffin Wax, jojoba wax, spermaceti, ceresin, and polyethylene, but are not limited thereto. When the content of the wax is less than 3% by weight, it is difficult to increase the volume. If the content of the wax is more than 25% by weight, the wax is dried and then the wax is hardened. The basic properties deteriorate the fountainability.

Surfactants used in the present invention include polysorbates, sorbitan stearate and derivatives thereof, polyethylene glycol-based surfactants, polyoxyethylene-based surfactants, polyethylene glycol / polyoxyethylene mixed surfactants, alkylglycol stearate derivatives May be used alone or in combination at 0.5 to 6% by weight based on the total weight of the composition.

In the water-in-oil type cosmetic composition according to the present invention, the content of the wax and the oil component containing the surfactant is preferably 1: 0.1 to 0.9 by weight, based on the weight of the acrylate alkyl copolymer emulsion. When the content is less than 0.1, the volume of the mascara is difficult to be cycled. When the content exceeds 0.9, the aqueous phase containing the film-forming agent may not sufficiently cover the oily component, and blurring may occur.

On the other hand, the oil component of the underwater type cosmetic composition according to the present invention may further contain a dispersant or an oil.

In the present invention, polyacrylic acid salt and polymethacrylic acid salt as a dispersant may be used in addition to the surfactant.

The oil used in the present invention may be olive oil, sunflower oil, jojoba oil, lanolin or fluorinated oil, and the content thereof is preferably 5% by weight or less. This is because, in the case of oil having high flowability, it can easily diffuse by touching sebum after applying mascara in the emulsion form.

The water-in-oil type cosmetic composition according to the present invention may further contain a high melting point wax, a thickener having a high water content, and a butter in the oil phase component to facilitate cleansing.

In the present invention, the high melting point wax used in the oil phase component is selected from the group consisting of carnauba wax, rice bran wax, montan, ozokerite, microcrystalline wax, wood wax, beeswax, lanolin, montan wax, ozokerite, Linseed wax, paraffin wax at 70 占 폚 or higher, ceresin wax at 70 占 폚 or higher and polyethylene wax. The high melting wax is preferably used in an amount of 1.0 to 20.0% by weight based on the total weight of the composition. In case of high melting point wax, drying speed is faster than low melting point wax, so you can set it immediately after application of eyelashes. Therefore, when it is less than 1.0% by weight, curling which is one of the basic properties of mascara is difficult. On the other hand, when the content is more than 20% by weight, the wax having a high melting point can hardly give a feeling of soft feeling because the content is easily hardened.

The water-in-oil type cosmetic composition according to the present invention further contains 0.1 to 5.0% by weight based on the total weight of the composition of the high-melting wax together with the water-thickening thickener to facilitate cleansing.

The incremental agents used in the present invention include cellulose-based thickeners including methylcellulose, ethylcellulose, hydroxymethylcellulose, hydroxyethylcellulose, cyclomethylcellulose, and cycloethylcellulose; Carboxyvinyl thickeners including Carbopol 941, Carbopol 934, Carbopol 940, Acupel HV-505E, Acupel HV-501 and HV-504; And polyacrylate 13 / polyisobutene / polysorbate or acrylate / C10-30 alkyl acrylate crosspolymer and a carbopol ETD2020 containing an incremental polymer based on polyacrylic acid, polymethacrylic acid and polyamide ≪ / RTI > CarbopolETD2020).

The thickening agent is characterized in that, when cleansing, the content of the mascara pulls a lot of moisture and easily separates from the eyelashes. These thickeners also increase the viscosity of the mascara composition, thereby improving the low volumetric power that may be present in formulations containing small amounts of wax.

The water-in-oil type cosmetic composition according to the present invention may contain butter in an amount of 0.1 to 2.0% by weight based on the total weight of the composition to facilitate spreading of the mascara.

The butter used in the present invention may be selected from the group consisting of Aloe Butter, Cocoa Butter, Shea Butter, Pistachio Butter, Avocado Butter, Mango Butter, But are not limited to, Soy Butter, Almond Butter, Olive Butter, Wheat Germ Butter, Cupuacu Butter, Jojoba Butter, Macadamia Seed Butter, ), Apricot Butter, Grape Seed Butter, Hemp Butter, Illipi Butter, Kokum Butter, Sal Butter and Carita Butter (Carite Butter).

Butter has the form of a solid or a semi-solid depending on the temperature. Therefore, the butter has a property of being easily pressed against a small force according to the change of the hardness according to the temperature, thereby giving the mascara a soft wetting property. In addition, the drying speed is slower than the wax, and the surface is flexible, so that the coated surface can be uniformly expressed.

The underwater type cosmetic composition according to the present invention is characterized in that it maintains the volume which is a basic function of the eye make-up composition and has excellent durability so that it is free from spreading under the eyes or dusting, and can be cleaned only with water without using a special cleansing agent. In addition, unlike the existing products which show a form of being dissolved in water upon cleansing, the cosmetic composition for underwater type according to the present invention cleanses the oil-phase component of the wax or oil by falling into a lump with the insoluble acrylate alkyl copolymer emulsion wrapped thereon, Of the wax is wrapped in the film forming agent without being spread in water and is easily cleansed.

In the present invention, mascara contents are prepared in different weight ratios of waxes and acrylate alkyl copolymer emulsions in order to confirm the durability and the cleansing history according to the composition. However, the present invention is not limited to these embodiments.

[Examples 1 to 3 and Comparative Example 1]

Mascaras of Comparative Examples 1 to 3 and Example 1 were prepared according to the composition shown in Table 1 below.

Ingredients Comparative Example 1 Comparative Example 2 Comparative Example 3 Example 1 1. Wax wax 18.0 10.0 18.0 10.0 2. Polysorbate 20 1.0 1.0 1.0 1.0 3. Sorbitan stearate 1.0 1.0 1.0 1.0 4. Polysorbate 60 1.0 1.0 1.0 1.0 5. Stearic acid 5.0 5.0 5.0 5.0 6. Dimethicone 0.5 0.5 0.5 0.5 7. Preservatives Suitable amount Suitable amount Suitable amount Suitable amount 8. Purified water Balance Balance Balance Balance 9. Glycerine 5.0 5.0 5.0 5.0 10. Triethanolamine 1.5 1.5 1.5 1.5 11. Ethanol 2.0 2.0 2.0 2.0 12. Zanthan gum 5.0 5.0 5.0 5.0 13. Black iron oxide 10.0 10.0 10.0 10.0 14. Acrylate alkyl copolymer emulsion 8.0 8.0 25.0 25.0

In the production process, the components 1 to 7 described in Table 1 were mixed and heated to dissolve (Mixture a), and Components 8 to 12 were mixed while heating (Mixture b). Component 13 was added to the mixture a, and components 8 to 12 (mixture b) were gradually added (mixture c) while stirring and mixing. The mixture b was slowly added to the mixture c and emulsified. The mixture was then cooled to room temperature.

[Test Example 1]

The mascara prepared in Comparative Examples 1 to 3 and Example 1 was applied to the artificial eyelashes 12 times for 5 times, and the weight of the mascara was measured. The results are shown in Table 2 below.

The mascara prepared in Comparative Examples 1 to 3 and Example 1 was applied to 30 women aged 20 to 40 years old, and sensory evaluation was performed on the volume, the sustainability and the easiness of cleansing. The average score is less than 4.0 and the average score is less than 4.0, the score is 4.0, the score is 8.0, the score is 8.1 to 12.0, and the score is more than 12.0. "Are shown in Table 2 below.

Test Items Comparative Example 1 Comparative Example 2 Comparative Example 3 Example 1 Increased Weight (mg) 8.3 5.6 8.7 7.1 Volume O × O △ vitality × △ △ O Easy Cleansing △ △ △ O

As shown in Table 2, in Comparative Example 1 using a large amount of wax and a small amount of acrylate alkyl copolymer emulsion, which is a prescription of existing mascara, the volume power was evaluated to be high, but the durability and the cleansing history were degraded. On the other hand, Comparative Example 2, in which the amount of the acrylate alkyl copolymer emulsion was fixed and the amount of wax was reduced, was more improved in durability than Comparative Example 1, but the volume power was lowered and the cleansing power was not different. In Comparative Example 3 in which the amount of the wax was fixed and the amount of the acrylate alkyl copolymer emulsion was increased, the volumetric power was quite good, but the durability and ease of cleansing power were poor. Finally, in the case of Example 1 in which the content of the wax was reduced and the amount of the acrylate alkyl copolymer emulsion was increased, the volume was somewhat lower than that of Comparative Example 1, but the durability was excellent and good cleansing easiness was exhibited.

[Examples 4 to 8]

Mascaras of Examples 2 to 6 were prepared according to the compositions shown in Table 3 below. In this case, Example 2 is a composition for further increasing the volume power, Examples 3 to 5 were performed on the basis of Example 2 to improve easiness of cleansing, and Example 6 is a composition for improving the spreadability.

Ingredients Example 2 Example 3 Example 4 Example 5 Example 6 1. Wax wax 10.0 - 10.0 - - 2. Carnauba Wax - 10.0 - 10.0 10.0 3. Polysorbate 20 1.0 1.0 1.0 1.0 1.0 4. Sorbitan stearate 1.0 1.0 1.0 1.0 1.0 5. Polysorbate 60 1.0 1.0 1.0 1.0 1.0 6. Stearic acid 5.0 5.0 5.0 5.0 5.0 7. Dimethicone 0.5 0.5 0.5 0.5 0.5 8. Shea Butter - - - - 0.5 9. Preservatives Suitable amount Suitable amount Suitable amount Suitable amount Suitable amount 10. Purified water Balance Balance Balance Balance Balance 11. Glycerin 5.0 5.0 5.0 5.0 5.0 12. Triethanolamine 1.5 1.5 1.5 1.5 1.5 13. Ethanol 2.0 2.0 2.0 2.0 2.0 14. Hydroxyethylcellulose - - 0.5 0.5 0.5 15. Zanthan gum 5.0 5.0 5.0 5.0 5.0 16. Black iron oxide 10.0 10.0 10.0 10.0 10.0 17. Acrylate alkyl copolymer emulsion 25.0 25.0 25.0 25.0 25.0

In the production process, the components 1 to 9 described in Table 3 were mixed and heated to dissolve (Mixture a), and Components 10 to 15 were mixed while being heated (Mixture b). Component 16 was added to Mixture a and components 10-15 (Mixture b) were added slowly (Mixture c) while stirring and mixing. The mixture (b) was gradually added to the mixture (c) and emulsified. Then, the mixture (17) was added and cooled.

[Test Example 2]

The mascara prepared in Examples 2 to 6 was applied to the artificial eyelashes 12 times for 5 times, and then the average weight was measured. The results are shown in Table 4 below.

The mascara produced in Examples 2 to 6 was evaluated in terms of volume, sustaining power, easiness of cleansing, and ease of spreading in the same manner as in Test Example 1, and the results are shown in Table 4 below.

Test Items Example 2 Example 3 Example 4 Example 5 Example 6 Increased Weight (mg) 7.1 8.4 7.6 9.5 9.3 Volume △ O △ ◎ ◎ vitality O O O ◎ ◎ Easy Cleansing O O ◎ ◎ ◎ Ease of fading △ △ △ × O

As shown in Table 4, in Example 3 using the wax having a higher melting point than Example 2, the hardness of the oil component was increased and the hardness of the entire contents was increased. Which is higher than that of Example 2. In Example 4 using hydroxyethylcellulose which gradually increased in shape, the ability of the contents to contain water at the time of cleansing was higher than that of Example 2 which did not use this raw material, and cleansing was greatly increased. In the case of Example 5, an aging agent having a high melting point wax and a high water-containing ability was used together. In this case, the sustaining power was high and the cleansing easiness was excellent. In addition, Example 6 using both the high melting wax, the thickening agent and the butter was excellent in both the volume power, the sustainability, the cleansing easiness and the ease of spreading.

Claims (11)

1) an acrylate alkyl copolymer emulsion in an amount of 15 to 40% by weight based on the total weight of the composition, 2) An oil-in-water type cosmetic composition comprising an oil phase component comprising a wax and a surfactant in a weight ratio of 1: 0.1 to 0.9, based on the weight of the acrylate alkyl copolymer emulsion. The underwater type cosmetic composition according to claim 1, wherein the oil component further contains a dispersant or an oil. The method of claim 1 wherein the alkyl acrylate copolymer emulsion was _~30 C ₁₀ alkyl acrylate or acrylate / C _{10 ~ 30-in-water} type cosmetic composition characterized by the alkyl acrylate copolymer. The composition for underwater type cosmetic composition according to claim 1, wherein the composition further comprises a high melting point wax in an oil phase component in an amount of 1.0 to 20.0% by weight based on the total weight of the composition. The wax according to claim 4, wherein the high melting point wax is selected from the group consisting of carnauba wax, rice bran wax, montan, ozokerite, microcrystalline wax, wax, beeswax, lanolin, montan wax, ozokerite, Wherein the cosmetic composition is selected from the group consisting of linseed wax, paraffin wax at 70 占 폚 or higher, ceresin wax at 70 占 폚 or higher, and polyethylene wax. The composition for underwater type cosmetic composition according to claim 1, wherein the composition further comprises an oil-in-water component in an amount of 0.1-5.0 wt% based on the total weight of the composition. 7. The method of claim 6, wherein the thickener is selected from the group consisting of methylcellulose, ethylcellulose, hydroxymethylcellulose, hydroxyethylcellulose, cyclomethylcellulose, cellulose-based thickener including cyclopropylcellulose; Carboxyvinyl thickeners including Carbopol 941, Carbopol 934, Carbopol 940, Acupel HV-505E, Acupel HV-501 and HV-504; And polyacrylate 13 / polyisobutene / polysorbate or acrylate / C10-30 alkyl acrylate crosspolymer and a carbopol ETD2020 containing an incremental polymer based on polyacrylic acid, polymethacrylic acid and polyamide And an acrylate-based thickening agent, which comprises CarbopolETD2020). The composition for underwater type cosmetic composition according to claim 1, wherein the composition further comprises 0.1 to 2.0% by weight of an oil component based on the total weight of the composition. 9. The method of claim 8, wherein the butter is selected from the group consisting of Aloe Butter, Cocoa Butter, Shea Butter, Pistachio Butter, Avocado Butter, Mango Butter, , Soy Butter, Almond Butter, Olive Butter, Wheat Germ Butter, Cupuacu Butter, Jojoba Butter, Macadamia Butter, Seed Butter, Apricot Butter, Grape Seed Butter, Hemp Butter, Illipi Butter, Kokum Butter, Sal Butter, Wherein the at least one cosmetic composition is at least one selected from the group consisting of carbohydrates, 10. An underwater type cosmetic composition according to any one of claims 1 to 9, wherein the composition is cleansed with water. 10. An underwater-type cosmetic composition according to any one of claims 1 to 9, wherein the composition is a mascara composition.