TW201811295A - Highly adhesive eye make-up cosmetic composition - Google Patents

Abstract

The present invention relates to a highly adhesive eye makeup composition and, more specifically, to an eye makeup composition having enhanced adhesive strength and excellent spreadability by containing a flaky powder and a spherical powder. The eye makeup composition according to the present invention has excellent adhesive strength and sliding properties, and thus exhibits an improved surface after re-apply and a clean volumizing function without agglomeration, thereby satisfying ideal requirements of mascara.

Description

High-viscosity eye cosmetic composition

The present invention relates to an eye cosmetic composition having high viscosity, and more particularly to an eye cosmetic composition containing sheet powder and spherical powder to enhance viscosity and having excellent applicability. Thing.

Generally, the function of mascara is to apply it to the eyelashes to make the eyelashes curl long, and to give a fluffy feeling, to emphasize the eyes and to give expression to the eyes. The fluffy feeling of mascara refers to the application of the mascara to the eyelashes richly to interpret the feeling of thicker and richer lashes than before. Especially compared with western women, oriental women with relatively few eyelashes and smaller eyes have a greater desire to make the eyelashes appear thicker and longer, so they have greater expectations for the fluffy function of the mascara.

For this reason, many methods have been developed in order to improve the fluffy function, and they are generally used in large quantities in polymers or powders that form waxes or films in the oil phase.

In particular, powders can easily become fluffy with increasing content, so they are commonly used in fluffy mascaras. Recently, round, spherical powders such as nylon, silicone, and polymethyl methacrylate have been used. trend. As a specific example, Japanese Patent Laid-Open Publication No. 11-12132 discloses an eye cosmetic composition which is composed of a silicone resin powder such as polymethylsilsesquioxane and is emulsified by phase inversion. emulsifision) and has an excellent fluffy feel. However, the spherical powder provides an excellent fluffy feel due to its round shape, but the area of adhesion to the surface of the eyelashes is small, so that uniform application will not be performed, and the powder will fall off from the eyelashes when reapplying. .

In order to improve such disadvantages, Japanese Patent Laid-Open Publication No. 2004-315420 discloses an eye cosmetic composition manufactured by mixing spherical oils with hydrocarbon oil components. However, the above-mentioned eye cosmetic composition has an excellent fluffy feeling and a curling degree retention ability by using a spherical hollow powder. However, there is a smudge at the bottom of the eye due to the oil content used to improve the applicability. As time goes by, it becomes harder to apply.

Conversely, in the case of using flat flake powders such as mica, talc, sericite, etc., it has a large adhesion area to the surface of the eyelashes and is therefore sticky when applied, but it is caused by too little amount being applied The fluffy feeling is reduced, and in order to solve such a problem, increasing the content of the powder will cause problems such as agglomeration or mascara texture during application. (Prior Art Document) (Patent Document) Korean Registered Patent Gazette No. 0708612, "Mascara Composition"

[Problems to be Solved by the Invention] In order to solve the above problems, the most commonly used method for preparing a dosage form having excellent spreadability is to form a skeleton via a saponification reaction in which a fatty acid reacts with an amino base. This shows that it is excellent in spreadability by the characteristic of shear-thinning which is easily disintegrated by application, and the durability of the dosage form formed thereby is significantly reduced. In order to improve the above-mentioned problems, a high content of a high-strength film-forming agent is used to improve the durability. However, at this time, there is a problem that the application surface becomes rough or cannot be slipped when reapplying. Therefore, in order to improve the smoothness of both shear-thinning and durability, spherical powders are used in the prior art, or non-crystalline waxes or low-viscosity waxes are used, but this situation will cause The decrease in stickiness results in a reduction in fluff and an increase in the number of re-applications, which again makes the surface rough.

Therefore, an object of the present invention is to provide an eye cosmetic composition, which maintains the existing soft applicability and durability on the one hand, and improves the tackiness to improve the surface when reapplying and the cleanness of the bulkiness. [Means for solving problems]

In order to achieve the above object, the present invention provides an eye cosmetic composition having high viscosity, and the weight ratio of the flake powder and the spherical powder contained therein is 4: 1 to 2: 1. [Inventive effect]

The eye cosmetic composition according to the present invention has excellent adhesiveness and smoothness, improves the surface during reapplying, and exhibits a non-condensing, clean and fluffy function, thereby meeting the ideal requirements of a mascara .

The present invention provides an eye cosmetic composition, which includes a flake powder and a spherical powder, a combination of a high-content alkyl acrylate copolymer and a styrene-based acrylate, Moreover, the formulation is formed through the saponification reaction, on the one hand, it maintains a smooth applicability and durability, and on the other hand, it improves the viscosity to improve the surface when reapplying and increase the bulk.

According to a preferred embodiment of the present invention, the eye cosmetic composition is a cosmetic composition for mascara, eyeliner, eye shadow or eyebrow pencil, more preferably a cosmetic composition for mascara or eyeliner, and most preferably for mascara Cosmetic composition.

In order to achieve an eye makeup composition having an excellent fluffy feeling to be realized in the present invention, the powder in the composition needs to have excellent adhesiveness and adherence, and the viscosity and adherence of the powder will be affected by the powder. The effect of particle size and shape. The particle size of the flake powder used in the present invention is generally smaller than the size of particles suitable for use in a cosmetic composition.

In the case of a flaky powder having smaller particles, it has lower spreadability and gives users a stiff feeling of use, but has excellent stickiness. If it is added together with a sheet-like powder having excellent stickiness to a spherical powder having no resistance during application and excellent spreadability, it can achieve both a smooth applicability and adhesiveness which are the main characteristics of the dosage form. Therefore, the weight of the flake powder and the spherical powder contained in the present invention is preferably 4: 1 to 2: 1.

The average particle size distribution of the flaky powder that can be used in the present invention is 0.1 μm to 2.0 μm, more preferably 0.5 μm to 1.8 μm, such as talc, mica, kaolin, alumina, etc. (Alumina) and the like, talc is preferably used. The above-mentioned flake powder is applied thinly on the eyelashes due to the very thin thickness of the powder, so that it is used for the purpose of increasing the fluffiness. However, due to its wide attachment area, powder is rarely seen over time. Down phenomenon, and smooth surface can be performed due to its smooth surface. Whittaker, Clark & Daniels (alumina) series (Activated 4082, Calcined 612, Tabular 635, Trihydrate 617, etc.) and Advanced Powder Technology (Alusion, etc.) Products are commercially available.

The average particle diameter of the spherical powder that can be used in the present invention is 0.5 μm to 10 μm, and more preferably 2.0 μm to 5.0 μm. Examples include spherical silica, nylon, vegetable cellulose, acrylic acid, acrylic acid ester, and formic acid. Acrylic acid, methacrylic acid ester, acrylonitrile, etc., and spherical silica is preferably used. The spherical powder is generally used because of its morphological characteristics. The thickness of the spherical powder that is close to the eyelashes is equivalent to the thickness of the powder. J.Rettenmaier & Sohne's Arbocel series (A300, BC1000, FT600-30, etc.), Presperse's Celluflow C-25, and Tosco's Ramie Cellulose Powder are commercially available.

The total weight of the flake powder and the spherical powder is 1 to 10% by weight, and more preferably 1 to 5% by weight based on 100% by weight of the entire composition. This situation is due to the following disadvantages: when the amount of use is less than 1% by weight, the expected coating effect of the powder is achieved because the amount of use is too small; when the amount of use exceeds 10% by weight, between powders may occur Coagulation phenomenon, and it is not easy to disperse without achieving good emulsification, making it difficult to form a dosage form.

In addition, the term "film-forming agent" used in the present invention refers to a compound that is generated as a result of molecular polymerization, and forms a thin film on the surface to maintain curled eyelashes, and helps to prevent the internal pigments from reaching the fundus. Ingredients. In addition to mascara, this ingredient is used in products such as hairspray, mousse, wax, spray, etc. for fixing hairstyles, and uses a polymer in which short eyelashes are fastened without eye irritation and viscosity.

Further, the eye cosmetic composition according to the present invention contains a combination of an alkyl acrylate copolymer as a film-forming agent and an acrylic ester containing a styrene group.

Compared with the existing film-forming agents (such as polyvinylpyrrolidone), the above-mentioned alkyl acrylate copolymer has a faster drying speed without contamination and powder loss, thereby increasing the amount attached to the eyelashes. And, a thin and strong film is formed on the eyelashes, and a clean makeup state can be maintained even after a period of time. The type of the alkyl acrylate used in the present invention is not particularly limited, and is, for example, a C10 to C30 alkyl acrylate copolymer or an acrylic acid / C10 to C30 alkyl acrylate copolymer.

Examples of the above-mentioned styrene-containing acrylates include styrene methacrylates, aminomethylpropanol-acrylates, polyacrylates, and the like. Specific examples include styrene / acrylate / methyl. Ammonium acrylate, styrene / ammonium / methacrylate, polyurethane-14, aminomethylpropanol-acrylate copolymer, aminomethylpropanol-acrylate / aryl methacrylate copolymer, polyacrylate 2 -Crosslinked polymer, polyacrylate-14, etc., preferably using styrene / acrylate / ammonium methacrylate. At present, for example, Synpolymer series (5009, 5760) from Interpolymer, Dynam X from National starch & chemical, and G-100 Polymer, Super hold Polymer, Plus Polymer from Noveon's fixed series are generally available on the market. The viscosity and molecular weight of such polymers are manufactured and sold in various forms, and are used in the present invention.

In the present invention, the weight ratio of the combination of the alkyl acrylate copolymer and the styrene / acrylate / ammonium methacrylate copolymer is preferably 10: 5 to 10:10, and the weight ratio according to the embodiment of the present invention is 10: 8. The alkyl acrylate copolymer with very excellent durability has the disadvantage of making the surface rough when reapplying due to the difference in drying speed between the inside and outside, but because of the styrene / acrylate / ammonium methacrylate copolymer having a phenyl group It has soft characteristics, and further exerts the effect of softening the dried surface film portion of the alkyl acrylate copolymer.

The content of the film-forming agent is 5.0 to 45.0% by weight, and preferably 15.0 to 30.0% by weight, based on the total weight of the composition. When the content of the film-forming agent is less than 5.0% by weight, the film-forming effect is weak and does not contribute to the improvement of durability. When the content exceeds 60% by weight, the mascara composition dries too quickly and causes application. Sexual decline.

In addition to the above-mentioned essential ingredients other than the above-mentioned ingredients, the eye cosmetic composition of the present invention can easily select other additives commonly used in the manufacture of eye cosmetics according to functions and applications, and specifically, may contain an emulsifier. , Wax, defoamer, preservative, tackifier, etc.

The method of manufacturing the eye cosmetic composition according to the present invention is not limited, but the most commonly used method for producing a dosage form having excellent spreadability is preferably a soap in which a fatty acid reacts with an amino base. The chemical reaction forms a skeleton. Specifically, the system is stabilized by neutralizing soap (ie, fatty acid esters) with a neutralizing agent, and in order to maintain excellent initial spreadability, polyglycerol fatty acid esters as wax crystal inhibitors are mixed and used. .

In the present invention, a soap in which a fatty acid ester is neutralized by a neutralizer is used instead of an emulsifier to stabilize the system, and the fatty acid ester is a higher fatty acid ester having 12 to 22 carbon atoms, preferably a carbon number. 16 ~ 18 palmitic acid and stearic acid. If the carbon number is less than 12 or more than 22, hardness and use feeling are not good. If the carbon number length of the fatty acid ester is less than 12, the carbon has a short length and cannot exert the effect of improving the spreadability. Only fatty acid esters having a carbon number length of 12 or more, preferably 16 or more, can be formed more easily. Lamellar structure. The lamellar structure is easily shattered by external deformation force (pressure). Therefore, for example, when the mascara liquid is applied to the eyelashes, the applicability becomes better.

The term "neutralizing agent" used in the present invention is a substance having a function of neutralizing fatty acids, and exerts a function of improving the obvious fluffy feeling, curling effect, and the endurance of curling, and exerts a suppressing powder. The effect of the phenomenon of falling.

According to a preferred embodiment of the present invention, the neutralizing agent included in the present invention is selected from the group consisting of Aminomethylpropanol (AMPD), Aminobutanol, and tetrahydroxypropylethylenediamine ( tetrahydroxypropylethylenediamine), diisopropanolamine, triisopropanolamine, monoethanolamine, and triethanolamine, more than one neutralizing agent, preferably ammonia Methylpropanol (AMPD).

The content of the neutralizing agent is preferably 0.1 to 10 parts by weight with respect to the total weight of the composition. When the content of the neutralizing agent is less than the above range, the stability of the composition may be poor due to unneutralized fatty acids. When the content exceeds the above range, the pH of the mascara may increase, the stability may be poor, and eye irritation may be caused. .

The usage-amount of the said neutralized fatty acid ester is 1 weight%-40 weight% with respect to the total weight of a composition, and it is most 5 weight%-30 weight%. In the present invention, the fatty acid ester functions as a wax crystal inhibitor, so that when the content is less than 1% by weight, the growth of wax crystals cannot be hindered and the wax crystals become larger over time, thereby failing to exhibit an initial smoothness. Applicability and usability, and when it exceeds 40% by weight, there is a disadvantage that the viscosity of the initial composition is too low to remain on the eyelashes.

In addition, the degree of neutralization of the neutralized fatty acid ester is 30% to 98%, and the optimal state is adjusted to 60% to 80%. At this time, the pH value is maintained at a value less than 9. If the degree of neutralization of the fatty acid ester is less than 30%, the effect of the emulsifier cannot be exerted, and the composition is poor in stability, resulting in phase separation. On the contrary, if the degree of neutralization of the fatty acid ester exceeds 98%, it is excellent Stability, but the viscosity is high, which reduces the spreadability and cannot be applied uniformly.

The higher the degree of neutralization of the fatty acid ester, the more the shear-thining effect increases, but the neutralization degree and pH value need to be taken into consideration when the pH value is also increased at the same time. According to an embodiment of the present invention, aminomethylpropanol (AMPD) is used to neutralize stearic acid with 18 carbon atoms to achieve a degree of neutralization of about 70%. At this time, the pH value is lower than 9 Value.

The object of application of the present invention is the “eye cosmetic composition” in this specification, preferably a mascara composition, and eyebrows or eyelashes are used as the application object. However, when considering the object and effect of the present invention, All human hair tissues, including keratin, are suitable for hair extension.

Hereinafter, the present invention will be described in more detail by describing preferred embodiments of the present invention. However, the present invention is not limited to the following embodiments. Embodiments of various forms can be realized within the scope of the attached patent application for invention. The following embodiments are only for complete disclosure of the present invention, and they also have common sense in the related technical fields. It is easy to implement the invention. <Examples 1 to 3 and Comparative Examples 1 to 3>

The constituent components and compositions of the eye cosmetic composition are shown in Table 1 below, and a mascara dosage form was produced according to the following production method. The film-forming agent used in Table 1 below is styrene / ammonium / methacrylate, and Syntran series (5009, 5760) from Interpolymer. [Table 1]

1) The components 1 to 6 are dissolved while being heated at 80 ° C.

2) The components 7 to 12 are stirred while being heated at 80 ° C.

3) Emulsify while gradually adding 2) to 1) above.

4) Add ingredients 13 to 15 and stir and cool to 35 ° C.

5) Fill this in a mascara container. ＜ Experimental example 1 ＞ Smoothness and stickiness test (sensory evaluation)

The mascara products of Comparative Examples 1 to 3 manufactured by the conventional method and the mascara products of Examples 1 to 3 manufactured by the method of the present invention were routinely used by 35 women aged 20 to 35 Use it frequently and compare the effect of the product through actual use. As a comparison item, the smoothness and stickiness of each product are evaluated and given a score of 0 to 10. In order to add the accuracy of the data five times, the average score was calculated and the results are shown in Table 2 below. In Table 2, the average score is 4.0 or lower, "×", 5 to 6 is "△", 7 to 8 are "○", and 9 or higher is "◎". [Table 2]

According to the above experimental results, it was confirmed that the more the talc as a flake powder increases, the more the viscosity increases, and the more the silicon oxide as a spherical powder increases, the more smoothness improves, but the viscosity decreases. In addition, when the weight ratio of the flake powder and the spherical powder as the composition of Example 1 was 4: 1, the tackiness and smoothness effect were the best. ＜ Experimental example 2 ＞ Fluffy test (sensory evaluation)

The same sample object as in the above-mentioned Experimental Example 1 was used to evaluate the fluffy feeling item at the initial application and at the reapplication 5 times, and a score of 0 to 10 was given. In Table 3, the average score is 4.0 or lower, “×”, 5 to 6 is “△”, 7 to 8 are “○”, and 9 or higher is “◎”. [table 3]

It can be known from the above experimental results that the fluffiness at the initial application is determined by the flake powder, and the fluffiness at the subsequent application is determined by the entire content of the powder.

The images of Example 1 and Comparative Example 3 having the above-mentioned excellent bulkiness are shown in FIG. 1. It was confirmed that when only the adhesiveness was good as in Comparative Example 3, coagulation between the coating liquids occurred during application. On the contrary, when the adhesiveness and smoothness as in Example 1 were good, no coagulation occurred. Image and smeared neatly.

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FIG. 1 is an image showing test results of Example 1 and Comparative Example 3 of the present invention.

Claims (10)

An eye cosmetic composition with high viscosity, which comprises a weight ratio of flake powder to spherical powder of 4: 1 to 2: 1. The high-viscosity ocular cosmetic composition according to item 1 of the scope of patent application, wherein the average particle size distribution of the flake powder is 0.1 μm to 2.0 μm. The ocular cosmetic composition having high viscosity according to item 1 of the scope of the patent application, wherein the spherical powder has an average particle diameter of 0.5 μm to 10 μm. The high-viscosity eye cosmetic composition according to item 1 of the scope of patent application, wherein the total weight of the flake powder and the spherical powder is 1 with respect to 100% by weight of the entire composition. % To 10% by weight. The high-viscosity ocular cosmetic composition according to item 1 of the scope of patent application, wherein the composition further comprises 15% to 30% by weight of a film-forming agent relative to 100% by weight of the entire composition. The high-viscosity ocular cosmetic composition according to item 5 of the scope of patent application, wherein the film-forming agent is a combination of an alkyl acrylate copolymer and a styrene / acrylate / ammonium methacrylate copolymer. The high-viscosity eye cosmetic composition according to item 6 of the patent application, wherein the weight ratio of the alkyl acrylate copolymer to the styrene / acrylate / ammonium methacrylate copolymer is 10 : 5 to 10:10. The high-viscosity eye cosmetic composition according to item 1 of the scope of patent application, wherein the composition further comprises 1% to 40% by weight of neutralized fat relative to 100% by weight of the entire composition. Acid ester. The high-viscosity eye cosmetic composition according to item 8 of the scope of patent application, wherein the neutralized fatty acid ester is 30% to 98% of a higher fatty acid ester having a carbon number of 12 to 22 The degree of neutralization is a fatty acid ester that is neutralized. The highly viscous ocular cosmetic composition according to item 9 of the scope of patent application, wherein the pH of the neutralized fatty acid ester is less than 9.