TWI739880B - Pressed powder cosmetic composition having improved application properties and formability - Google Patents

Abstract

Provided is a pressed powder cosmetic composition including two or more spherical powders of 20 weight percentage or more of the total weight of the composition to enhance application properties and compression formability on a sticky make-up film. The pressed powder cosmetic composition is used by blending two or more spherical powders, so that even if a lot of spherical powders are contained, a pressed powder form easy for carrying may still be prepared without being subjected to a wet process. The pressed powder cosmetic composition contains the spherical powders of 20 weight percentage or more having good oil-absorbing capacities and less agglomeration to have an excellent compatibility with a cushion foundation or a liquid foundation, improve brightness, concealing power and endurance of the make-up film, and present an enhancing effect of make-up.

Description

Powdered cosmetic composition with improved application characteristics and moldability

The present invention relates to a pressed powder cosmetic composition that includes two or more spherical powders of 20% by weight or more of the total weight of the composition to improve the coating property and compression moldability of a sticky cosmetic film.

Makeup foundations are cosmetics that are applied to conceal blemishes and show a uniform skin tone before applying makeup. They are classified into liquid foundations, cream foundations, solid foundations, powder foundations, etc. according to the dosage form. In addition, recently, in order to improve the portability of the liquid foundation, an air cushion foundation in the form of a compact in which the liquid foundation is impregnated into an impregnating material has become popular. Among them, foundations with viscosity like liquid foundations and cushion foundations, as a formulation that exhibits natural concealing power and are effective in presenting delicate and smooth skin, are favored by consumers who desire to present clear and natural skin.

Such liquid foundations or cushion foundations contain too much oil and therefore have the advantage of smooth spreadability. On the contrary, they have the disadvantages of poor skin adhesion and a greasy feeling of use. In particular, the ability of these foundations to absorb sebum and sweat is lower than that of powder-based foundations. Therefore, there is a problem that the long-lasting ability of the cosmetic film, such as sebum and sweat, agglomerates, powders, and discoloration due to sebum and sweat, decreases with the passage of time.

In order to improve the above-mentioned problems, a cosmetic method of applying a powder product such as a powder or pressed powder with good oil absorption ability to a sticky cosmetic film of a liquid foundation or an air cushion foundation to set makeup. Spherical powders with spherical particles are less agglomerated and present natural skin when applied to a sticky cosmetic film. Therefore, cosmetics with a higher content of spherical powders are more suitable for this purpose. .

However, in the case of a pressed powder cosmetic composition with good portability, if 15% by weight or more of spherical powder is contained, there is a problem that compression molding cannot be performed or drop resistance cannot be ensured. Therefore, in order to prepare a compressed powder dosage form, it is necessary to use a special spherical powder that is advantageous for forming alone, or to perform a separate wet process as in Korean Patent Publication No. 2013-055333. However, in the case of using the spherical powder that is advantageous for molding alone, it is difficult to achieve an excellent feeling of use, diversification of formulations and decreased drop resistance. If a wet process is additionally added, the following problems will occur: It is inefficient in terms of productivity and cost, and the feeling of use and dosage form stability caused by the use of solvents are reduced.

Therefore, it is actually necessary to develop a novel pressed powder cosmetic composition that can be formulated by a dry process, has excellent drop resistance, and has excellent coating properties on a sticky cosmetic film and a feeling of use.

[Prior Art Document] [Patent Document] Korean Patent Publication No. 2013-055333, cosmetic composition for makeup and preparation method

[The problem to be solved by the invention]

In order to solve the above-mentioned problems, the inventors of the present invention prepared a powder cosmetic composition prepared by mixing two or more different spherical powders, and completed the present invention by confirming the following situation: Containing more than 20% by weight of spherical powder, it can also be molded into a compressed powder form by a dry molding method, with excellent drop resistance and excellent cosmetic film staying power and lifting effect.

Therefore, the object of the present invention is to provide a pressed powder cosmetic composition comprising 20% to 40% by weight of two or more spherical powders.

[Means to solve the problem]

In order to achieve the above object, the present invention provides a pressed powder cosmetic composition, which includes spherical powder, plate-shaped powder and oily binder. The spherical powder contains 20% to 40% by weight in the overall composition. The powder is selected from two or more of the group consisting of inorganic particles, organic particles, and organic-inorganic composite particles.

[Effects of Invention]

The compressed powder cosmetic composition of the present invention is used by blending two or more spherical powders, whereby even if it contains a large amount of spherical powders, it can be prepared into a compacted powder dosage form that is easy to carry without performing a wet process. The above-mentioned pressed powder cosmetic composition contains 20% by weight or more of spherical powder with excellent oil absorption capacity and less aggregation phenomenon, so it has excellent compatibility with air cushion foundation or liquid foundation, and improves the brightness, concealing power and staying power of the cosmetic film And show the lifting effect of make-up.

Hereinafter, the present invention will be described in detail so that those with common sense in the technical field to which the present invention belongs can easily implement it. However, the present invention can be implemented in many different forms and is not limited to the embodiments described here.

Powdered cosmetic composition

The present invention provides a pressed powder cosmetic composition, comprising two or more spherical powders selected from the group consisting of inorganic particles, organic particles, and organic-inorganic composite particles, and the total weight of the cosmetic composition is 20% to 40% by weight. % Includes the above spherical powder.

Spherical powder is a spherical powder in the form of particles, and is included in the powder cosmetic composition to impart a smooth and light touch. Spherical powder has the effect of spreading light in all directions, so the effect of covering skin imperfections such as pores or acne marks is better than that of flake powder. In addition, the spherical powder has the advantage of exhibiting an oil-absorbing effect when applied to a sticky cosmetic film such as a liquid foundation or an air cushion, and it is applied lightly without agglomeration. Therefore, a powder cosmetic composition having a high ratio of spherical powder has an effect of showing natural skin and improving the retention of the cosmetic film, and therefore is suitable for fixing a cosmetic film and repairing makeup.

However, a powder cosmetic composition containing a large amount of spherical powder has the disadvantage that it is difficult to prepare a pressed powder form of a pressed powder due to the voids between the powder particles and the repulsive force. That is, if the content of the spherical powder is 15% or more of the weight of the cosmetic composition, compression molding is generally difficult, and the disintegration after molding is also high, making it difficult to realize a stable compressed powder dosage form.

The inventors of the present invention conducted research on a powder cosmetic composition that has a high content of spherical powder and can be realized in a compressed powder form for portability. As a result, it was confirmed that two or more different kinds of spherical powders were mixed. When used, the compression moldability and drop resistance are improved. In addition, the pressed powder composition prepared in this way does not agglomerate when used on a sticky cosmetic film, but is applied lightly, and exhibits the lifting effect of the cosmetic film.

The above-mentioned "uplifting effect of the cosmetic film" refers to the effect of improving the concealing power of the cosmetic film, improving the brightness and color development, increasing the durability, and increasing the uniformity of the cosmetic film when the pressed powder cosmetic composition is applied to the cosmetic film. That is, when the retention and improvement properties of the cosmetic film are improved compared to before the application of the powdered cosmetic composition, it can be said that the cosmetic film has an improving effect.

The spherical powder that can be used in the present invention is not particularly limited, and types of inorganic particles, organic particles, and organic-inorganic composite particles generally used in this technical field can be used.

It is preferable to use silica for the above-mentioned inorganic particles. As a porous spherical powder, the above-mentioned silica has the advantages of high oil absorption and the effect of maintaining the durability of the cosmetic film, low refractive index and high transparency, so that other powders can be uniformly coated. However, when a high content of silica is used, compression molding is difficult and the skin becomes dry. Therefore, it is preferable to use silica within 30% by weight of the total weight of the cosmetic composition, and more preferably to use silica within 20% by weight. .

Examples of the above-mentioned organic particles include polystyrene, polymethyl methacrylate, polyethylene, nylon 6, nylon 12, ethylene/acrylic acid copolymer, polymethyl methacrylate/ethylene glycol dimethacrylate copolymer, Polyallyl methacrylate/ethylene glycol dimethacrylate copolymer, ethylene glycol dimethacrylate/lauryl methacrylate copolymer, crosslinked acrylate/ethylhexyl acrylate copolymer, poly Combinations of urethanes and the like. Among them, polymethyl methacrylate and ethylene/acrylic acid copolymers are preferred in terms of ensuring moldability as a powder form, light spreadability, and improvement effect of a cosmetic film.

The organic-inorganic composite particles can be, for example, polymethylsilsesquioxane, silicone resin powder, organosilicone particles, silicon oxide whose surface is treated with an organic substance, and combinations thereof.

The aforementioned silicone resin powder may specifically be an organopolysiloxane elastomer powder coated with a silicone resin such as a silsesquioxane resin, and more specifically, it may be vinyl polydimethylsiloxane/polymethyl siloxane. Silsesquioxane cross-linked polymer. The above-mentioned organosilicone particles can be, for example, methylsilanol/silicate cross-linked polymer, and the above-mentioned silicon oxide formed by treating the surface with an organic substance can be, for example, an oxide formed by coating the surface with polydimethylsiloxane. Silicon, but not limited to this.

The average particle diameter (D50) of the spherical powder is preferably 5 μm to 20 μm. If the average particle size of the spherical powder exceeds 20 μm, compression molding is difficult, and the dosage form is broken when dropped, and there are problems in the stability of the dosage form. Therefore, it is appropriately adjusted within the above-mentioned range.

In the pressed powder cosmetic composition of the present invention, two or more spherical powders are mixed and used. The combination of the spherical powders is not limited, and various combinations are possible, but preferably include one or more of inorganic particles and organic More than one kind of particles. At this time, it is preferable to include 10% to 30% by weight of inorganic particles and 5% to 20% by weight of organic particles in the overall composition. When the above numerical range is satisfied, even if wet molding is not performed, it can be molded into a powder form and exhibits excellent drop stability. In addition, the improvement effect of the cosmetic film can be obtained by including the inorganic particles and organic particles in the above numerical range.

According to a preferred embodiment of the present invention, the spherical powder includes inorganic particles and organic particles. In this case, the inorganic particles may be silicon oxide, and the organic particles are ethylene/acrylic acid copolymers.

According to another preferred embodiment of the present invention, the spherical powder includes inorganic particles and organic particles. In this case, the inorganic particles may be silica, and the organic particles are a combination of polymethyl methacrylate and ethylene/acrylic acid copolymer. .

The pressed powder cosmetic composition of the present invention includes a plate-like powder in order to impart compression moldability, concealing power, skin adhesion, and adhesion characteristics.

In the present invention, the type of such plate-like powder is not particularly limited, and plate-like powders generally used in this technical field can be used. At this time, in terms of compression moldability, concealing power, skin adhesion, and feeling of use, the plate-like powder preferably has an average thickness of 0.1 μm to 1.0 μm, an average particle diameter of 1 μm to 100 μm, and an average particle diameter of 0.1 μm to 1.0 μm. The aspect ratio obtained by dividing by the average thickness is 10 or more.

Specifically, the aforementioned plate-like powder may be selected from talc (Talc), mica (Mica), boron nitride, barium sulfate, alumina (Alumina), sericite, and kaolin. (Kaolin) and Synthetic Fluorphlogopite (Synthetic Fluorphlogopite) consisting of more than one species, preferably talc. Talc has the characteristics of inelasticity. When the average particle size is less than 10 μm, almost all types can be molded. After molding, there is less flying powder and strong falling stability, so it is suitable for realizing compressed powder dosage forms. The larger the size of the talc powder, the worse the denseness and the lower the moldability. Therefore, it is preferable to use talc powder having an average particle size of 4 μm to 9 μm, more preferably 6 μm to 7 μm.

The content of the aforementioned plate-like powder is preferably 40% to 80% by weight of the total weight of the composition. If the content of the plate-like powder is less than 40% by weight, there is a problem that it is difficult to form a powder into a compressed powder. If it exceeds 80% by weight, the content of the spherical powder becomes low, and it is impossible to obtain a compressed powder cosmetic composition with less aggregation. Therefore, adjust appropriately within the above range.

The pressed powder cosmetic composition of the present invention includes an oily binder in order to increase the binding force between powder particles. The type of the oily binder is not particularly limited. For example, it may be one or more selected from the group consisting of ester oils, hydrocarbon oils, and silicone oils. The ester oils are selected from the group consisting of hexyl laurate (Hexyl laurate, Dicaprylyl carbonate, Diisostearyl malate, Butylene glycol dicaprylate/dicaprate, Cetyl ethyl Cetyl ethylhexanoate, Triethylhexanoin, Dicetearyl dimer dilinoleate, Caprylic/Capric Triglyceride, Polyglyceryl-2 Triisostearate (Polyglyceryl-2 Triisostearate) and Pentaerythrityl Tetraisostearate (Pentaerythrityl Tetraisostearate); the above hydrocarbon oil is selected from polybutene (Polybutene), hydrogenated polyisobutene ( Hydrogenated polyisobutene and Phytosqualane; the above-mentioned silicones are selected from the group consisting of Phenyl trimethicone and Dimethicone Ethnic group. Among them, it is preferable to use diisostearyl malate or polydimethylsiloxane in terms of moldability and feeling of use.

Preferably, the above-mentioned oily binder is included at 5 wt% to 20 wt%, more preferably 5 wt% to 10 wt% of the total weight of the composition. If the content of the oily binder is less than 5% by weight, it is difficult to perform dry compression molding, the drop stability is reduced, and the phenomenon of flying powder is exhibited. If the content of the oily binder exceeds 20% by weight, powder is generated. Therefore, it should be adjusted appropriately within the above-mentioned range.

On the other hand, the pressed powder cosmetic composition of the present invention may further include pigments in order to improve skin blemishes and impart bright colors. The type of such a pigment is not particularly limited, and white or colored inorganic particles or organic particles can be used as white or colored inorganic particles or organic particles by ordinary users in the technical field.

As inorganic pigments, for example, titanium dioxide, surface-treated or unsurface-treated zirconium oxide or cerium oxide, zinc oxide, iron oxide (black, yellow or red), chromium oxide, manganese violet, ultramarine blue, chromium hydroxide hydrate can be used (Chromium hydrate), ferric blue, aluminum powder and copper powder.

Examples of organic pigments include cochineal extract dyes, azo dyes, anthraquinone dyes, indigo dyes, dibenzopyran dyes, pyrene dyes, quinoline dyes, triphenylmethane dyes, and fluoran dyes.

In the present invention, the content of such a pigment is not particularly limited, but it is preferable to include the pigment in the range of 0.1% by weight to 10% by weight of the total weight of the composition.

In addition, the above-mentioned pressed powder cosmetic composition may further include retaining ingredients, moisturizers, softeners, surfactants, organic pigments, inorganic pigments, organic powders, ultraviolet absorbers, preservatives, tackifiers, and bactericides. , Anti-oxidants, plant extracts, pH adjusters, alcohol, pigments, fragrances, blood circulation promoters, cold sensation agents, antihidrotic agents.

Preparation method of pressed powder cosmetic composition

The compressed powder cosmetic composition of the present invention is prepared through the steps of mixing, pulverizing, filtering, and compression molding of raw materials.

The mixing and pulverization are not particularly limited, and methods generally used in the technical field can be used. For example, a food mixer, a Henschel mixer, and the like "mixers that use a high-speed rotation of a moving impeller to mix contents" can be used. In addition, it is possible to use a screen mill (atomizer) selected from a ball mill, a disintegtator (disintegtator), and a micro pulverizer, and a hammer mill (hammer mill). )), meat and bone grinder, pin mill and Air Jet Mill.

The compression molding method is not particularly limited, and a method generally used in the technical field can be used, for example, a pressing machine can be used for molding.

The powdered cosmetic composition prepared by the above method can be measured for hardness with a Teclock type A hardness tester. At this time, the hardness of the pressed powder cosmetic composition is preferably 10-60, more preferably 30-50.

Pressed powder dosage form

The pressed powder cosmetic composition of the present invention provides excellent spreadability when applied to the skin, excellent adhesion to the skin, a refreshing and light feeling on the skin, excellent pressed formability and impact resistance. The pressed powder cosmetic composition of the present invention can be used in powder pact, foundation, two-way cake, eyebrow, eyeshadow, blusher, highlighter Powder (highlighter), concealer (concealer) and cosmetics with other functions. In particular, the pressed powder cosmetic composition of the present invention is suitable for use on a sticky cosmetic film such as an air cushion foundation or a liquid foundation in order to improve the retention of the cosmetic film and obtain a makeup enhancement effect, and can be used as makeup makeup.

Hereinafter, in order to facilitate the understanding of the present invention, preferred embodiments are presented. However, the following embodiments are only used to illustrate the present invention. Those with common sense in the technical field should understand that they can be within the scope of the present invention and the scope of technical ideas. Various changes and amendments have been implemented in the internal, such changes and amendments of course also belong to the scope of the attached patent application.

[Example]

Preparation example 1 ：Preparation of pressed powder cosmetic composition

The pressed powder cosmetic compositions of Comparative Example 1, Example 1 and Example 2 were prepared according to the formula of Table 1 below.

1) After weighing the spherical powder, plate powder and other ingredients into the mixer, mix for 2 minutes.

2) Weigh the oily adhesive ingredients and heat to 70°C to 80°C.

3) Spray the above 2) and use a Henschel mixer (500 rpm to 1000 rpm) to mix and disintegrate for 1 minute to 2 minutes.

4) Set the above 3) to high speed (1500 rpm to 2000 rpm) and mix for 2 minutes.

5) After crushing the above 4) with 15 horsepower, filter it.

6) After placing a fixed amount on a Petri dish, ^{shape it at about 20 kgf/cm 2 for} about 5 seconds to prepare a compact.

[Table 1]

Experimental example 1 : Sensory inspector's sensory evaluation of cosmetic composition

The cosmetic composition prepared in the above-mentioned Preparation Example 1 was subjected to a sensory evaluation with 10 professional sensory inspectors as subjects. As described below, the corresponding attributes are evaluated on a 5-point basis, and the results (average scores) are shown in Table 2 below. 5: The corresponding attribute is stronger 4: The corresponding attribute is slightly stronger 3: Normal 2: The corresponding attribute is slightly weaker 1: The corresponding attribute is weaker

[Table 2]

According to the results of the sensory evaluation of the cosmetic composition described above, the cosmetic compositions of Example 1 and Example 2, which include two or three spherical powders, respectively, have superior overall scores compared to Comparative Example 1 which includes only one type of spherical powder. In particular, the cosmetic compositions of Example 1 and Example 2 were evaluated to be less prone to agglomeration phenomenon during application and excellent in use, and were also evaluated to be excellent in terms of improvement in concealing power and staying power of the foundation.

The cosmetic compositions of Example 1 and Example 2 also showed excellent makeup endurance, color development and concealment improvement effects. It can be confirmed that when the cosmetic compositions of Example 1 and Example 2 are applied after makeup, the staying power of eye shadow and concealer is better than that of Comparative Example 1, and the color development and concealing power are also improved.

Based on the above results, it can be confirmed that the pressed powder cosmetic composition of the present invention, when applied to a cosmetic film of air cushion foundation or liquid foundation, exhibits the same or improved concealment as the conventional pressed powder cosmetic composition Power and staying power, and less cohesion during application, so that while presenting more natural skin, it can improve the staying power and color power of makeup while also showing the lifting effect of the cosmetic film.

Experimental example 2 : Evaluation of compatibility with cushion foundation

In order to confirm the cosmetic film lifting effect of the pressed powder cosmetic composition prepared in Preparation Example 1, the measurement was carried out on 1) when only air cushion foundation (hereinafter referred to as "air cushion") was applied; 2) after applying air cushion on the face The skin tone and skin uniformity over time when the powdered cosmetic composition (powder) of Example 2 is pressed.

The above measurement is carried out by the following method: using Canfield's Visia-CR to take a frontal image of the face, and analyze the hue, saturation and value of the face. The data analysis program uses Image-pro plus from Media Cybernetics. The skin color is equivalent to the lightness value, and the skin uniformity is derived from the standard deviation value of the chroma.

The results are shown in Table 3 below, and the comparative photograph is shown in FIG. 1.

[table 3]

According to the experimental results, it can be confirmed that the skin color and skin uniformity immediately after use show improved values when the pressed powder cosmetic composition of the present invention is reapplied compared with the case of using an air cushion foundation. When the cosmetic composition of Example 2 was reapplied, the skin color showed an improvement effect of more than 2 times, and the skin uniformity was also improved by 23%.

The effect of the pressed powder cosmetic composition of Example 2 is more remarkable in terms of endurance. In the case of using only the air cushion, the skin tone improvement after 8 hours stays at the 60% level immediately after application, and the skin uniformity is lower than the value before use due to the aggregation phenomenon that occurs over time. On the contrary, it was confirmed that when the pressed powder cosmetic composition of Example 2 was reapplied, the skin color improvement rate after 8 hours was about 70% of that immediately after application, and the skin color correction effect was maintained for a long time.

In addition, the skin uniformity was maintained for a long period of time, and it was judged that the reason was that the powdered cosmetic composition of Example 2 had less aggregation phenomenon and excellent retention of the cosmetic film.

Experimental example 3 ：Evaluation of drop resistance

The powdered cosmetic composition prepared in Preparation Example 1 was evaluated for drop resistance. Ten powdered cosmetic compositions of Example 1, Example 2, and Comparative Example 1 were dropped at a height of 30 cm to confirm the number of cracks.

As a result, the following conditions can be confirmed: Comparative Example 1 is broken in 5 out of 10, and Example 1 and Example 2 are broken in only 3 out of 10, which is better than the comparison using only one kind of spherical powder. Example 1 drop resistance.

According to the above experimental results, it can be confirmed that the pressed powder cosmetic composition of the present invention has excellent compression moldability and drop resistance even if it contains 20% by weight or more of spherical powder, and is sticky when applied to air cushion foundations. When it is applied to the cosmetic film, it shows excellent skin tone and skin uniformity improvement effect, and the endurance improvement effect of the cosmetic film is also excellent, and it can maintain bright and even skin even after time.

without

Fig. 1 is a photograph comparing the concealing power, uniformity, and staying power of a cosmetic film when an air cushion foundation is used alone and when the pressed powder cosmetic composition of the present invention is used together.

Claims (6)

A pressed powder cosmetic composition, comprising spherical powder, plate powder and oily binder, wherein the spherical powder comprises silicon oxide and ethylene/acrylic acid copolymer, and the average particle size of the spherical powder is 5 μm to 20 μm , And in the overall composition, the spherical powder is 20% to 40% by weight, the plate-like powder is 40% to 80% by weight, and the oily binder is 5% to 20% by weight %. The pressed powder cosmetic composition according to item 1 of the scope of patent application, wherein in the overall composition, the spherical powder includes 10% to 30% by weight of the silica and 5% to 20% by weight % Of the ethylene/acrylic acid copolymer. The pressed powder cosmetic composition according to the first item of the scope of patent application, wherein the spherical powder further includes polymethyl methacrylate. The compressed powder cosmetic composition according to the first item of the patent application, wherein the average thickness of the plate-shaped powder is 0.1 μm to 1.0 μm, and the average particle diameter of the plate-shaped powder is 1 μm to 100 μm, which satisfies the following number The aspect ratio of Formula 1 is 10 or more: [Numerical Formula 1] Aspect Ratio=average particle diameter/average thickness. The pressed powder cosmetic composition according to item 1 of the scope of patent application, wherein the plate-like powder is selected from the group consisting of talc, mica, boron nitride, barium sulfate, alumina, sericite, kaolin and synthetic fluorphlogopite One of the ethnic groups superior. The pressed powder cosmetic composition according to item 1 of the scope of patent application, wherein the oily binder is one or more selected from the group consisting of ester oils, hydrocarbon oils, and silicone oils. The oils are selected from the group consisting of hexyl laurate, dioctyl carbonate, diisostearyl malate, butanediol dicaprylate/dicaprate, cetyl ethyl hexanoate, glyceryl triisocaprylate , Dicetearyl alcohol dimer linoleate, caprylic/capric triglyceride, polyglycerol-2 triisostearate and pentaerythritol tetraisostearate; the hydrocarbons The oil is selected from the group consisting of polybutene, hydrogenated polyisobutylene and vegetable squalane; the silicone oil is selected from the group consisting of phenyl trimethylsiloxane and polydimethylsiloxane .

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