Aqueous liquid cosmetic material

Abstract

This aqueous liquid cosmetic material contains (A) at least 70 mass% of water, (B) 1-10 mass% of silicone powder, (C) a film-forming polymer emulsion in an amount of 0.5-20 mass% in terms of a solid content basis, and (D) 0.01-1 mass% of cationically modified xanthan gum, and does not substantially contain (E) a surfactant. It is preferable to further include 0.5-2 mass% of (F) a water-soluble film-forming agent. The aqueous liquid cosmetic material preferably has a viscosity indication value of 6,000 [(mPa·s)×(g / cm3)] or less, specifically, 4,000 [(mPa·s)×(g / cm3)] or less, and the formulation may be either an emulsion type or a liquid type (dilute emulsion). In particular, the cosmetic material is suitable as a spray-type cosmetic material when the viscosity indication value is 100 [(mPa·s)×(g / cm3)] or less.

Description

Water-based liquid cosmetics

[0001] The present invention relates to an aqueous liquid cosmetic suitable as a makeup protection cosmetic or a makeup cosmetic, and more particularly to an aqueous liquid cosmetic that provides a smooth feel on the skin, is free from squeaking and shininess, and has excellent water resistance.

[0002] Sunscreen cosmetics and makeup cosmetics such as lipstick, foundation, eye shadow, and mascara are required to be water-resistant and have long-lasting cosmetic effects. In recent years, with the increase in opportunities to wear masks, makeup is more likely to come off than ever before due to rubbing and humidity, and there is a growing need to prevent this.

[0003] There are various known formulations for sunscreen cosmetics and makeup cosmetics, including oil-based types with oil as the main ingredient, water-based types with water as the main ingredient, two-layer types that combine both oil- and water-based types, and high-ethanol types with ethanol as the main ingredient. Of these, aqueous liquid cosmetics have the advantage of providing a fresh feeling when used and being less harsh on the skin, and in recent years there has been a strong demand for their development.

[0004] Previously, methods have been proposed for incorporating silicone powder into aqueous cosmetics to improve their feel and smoothness on the skin. For example, Patent Document 1 describes a cosmetic raw material consisting of an aqueous suspension of silicone rubber powder with an average particle size of 0.1 to 500 μm, and a cosmetic containing the same (see claims 1 and 5). It also describes that the use of this cosmetic raw material allows the silicone rubber powder to be uniformly dispersed throughout the cosmetic, resulting in a cosmetic that has a good feel on the fingers and skin, spreads easily, and feels good in use (see paragraph 0003). The aqueous suspension is prepared by emulsifying the silicone rubber powder in an aqueous solution of polyoxyethylene nonylphenyl ether (see Example 1 in paragraph 0020).

[0005] Furthermore, Patent Document 2, based on the recognition that the dispersibility of crosslinked silicone particles is insufficient in the case of the cosmetic preparation described in Patent Document 1, proposes an aqueous dispersion in which crosslinked silicone particles are dispersed in the presence of a specific amphoteric surfactant (see claim 1), and states that the use of this dispersion results in good dispersibility of the crosslinked silicone particles in the cosmetic preparation (see paragraph 0053).The cosmetics proposed in Patent Documents 1 and 2 are useful in terms of uniformly dispersing the silicone powder, but because both preparations use a surfactant to prepare the aqueous dispersion of silicone powder, the surfactant is contained in the cosmetic preparation, which poses the problem of easily impairing water resistance and durability of cosmetic effect, which are important performance requirements for cosmetics.

[0006] On the other hand, methods for uniformly dispersing silicone powder without using surfactants have also been developed. For example, Patent Document 3 proposes a surface-treated powder in which the surface of silicone resin particles is coated with a low molecular weight organosilicon derivative, or a low molecular weight organosilicon derivative and a water-soluble cationic polymer (see claim 1), and describes that when used in the preparation of aqueous cosmetics, cosmetics excellent in dispersibility, dispersion stability, easy redispersibility, dispersion stability over time, and a moist feel when used can be obtained (see paragraph 0023). However, with this method, the hydrophobicity (water repellency) that is a characteristic of silicone resin powder is lost due to the surface treatment of the particles, and there is a problem that the silicone resin powder easily disappears from the skin due to sweat, etc.

[0007] It is known that when preparing aqueous liquid cosmetics, various dispersion stabilizers and thickeners, such as xanthan gum and cationic group-containing acrylic acid copolymers (polyquaternium-7), are blended in order to improve the dispersibility of the powders that are blended in. However, in the case of low-viscosity aqueous liquid cosmetics, it is generally difficult to uniformly disperse the powders. According to the studies of the present inventors, when preparing aqueous liquid cosmetics containing silicone powder, even if the above-mentioned dispersion stabilizers are blended, the silicone powder is not sufficiently dispersed, resulting in poor stability of the cosmetic. Even if the silicone powder is uniformly dispersed, if it subsequently precipitates, it is difficult to redisperse it (see Table 1 below).

[0008] Japanese Patent Laid-Open No. 10-175816 Japanese Patent Laid-Open No. 2002-235004 Japanese Patent Laid-Open No. 2005-247720

[0009] The present invention was completed in light of this background technology, and its object is to provide an aqueous liquid cosmetic that provides a fresh feeling upon use, and that has excellent water resistance and stability while maintaining the characteristics of aqueous liquid cosmetic preparations, such as being gentle on the skin, and that further provides a smooth feeling to the skin upon use, without causing phenomena that deteriorate the feel upon use, such as squeaking or shininess.

[0010] As a result of extensive research conducted by the present inventors to solve the above problems, they discovered that using a silicone powder in combination with a film-forming polymer emulsion and a small amount of cation-modified xanthan gum dramatically improves the dispersibility of the silicone powder, resulting in a cosmetic preparation that is excellent in water resistance and stability and does not produce squeaky or shiny skin, and they have completed the present invention.

[0011] Thus, according to the present invention, there is provided an aqueous liquid cosmetic preparation comprising (A) 70% by mass or more of water, (B) 1 to 10% by mass of silicone powder, (C) 0.05 to 20% by mass, based on the solids content, of a film-forming polymer emulsion, and (D) 0.001 to 1% by mass of cation-modified xanthan gum, and (E) being substantially free of surfactants.

[0012] The aqueous liquid cosmetic of the present invention provides a fresh feeling upon use, and while maintaining the characteristic of aqueous liquid cosmetics that it is gentle on the skin, it is excellent in water resistance and stability, and further provides a smooth feeling to the skin upon use, without causing phenomena that deteriorate the feeling upon use, such as squeaking or shininess.

[0013] The aqueous liquid cosmetic of the present invention contains, as essential components, (A) water, (B) a film-forming polymer emulsion, (C) a silicone powder, and (D) a cation-modified xanthan gum, and is substantially free of (E) a surfactant. Each component will be described in detail below.

[0014] <(A) Water> The cosmetic of the present invention is an aqueous liquid and therefore contains water as an essential component. The water is not particularly limited as long as it is commonly used in the preparation of cosmetics, and examples include tap water, purified water, ion-exchanged water, hot spring water, deep sea water, and steam-distilled water derived from plants such as lavender water, rose water, and orange flower water. These may be used alone or in combination of two or more. The water content in the cosmetic must be 70% by mass or more to achieve a fresh feel upon use, and preferably 80% by mass or more to achieve an even better freshness.

[0015] <(B) Silicone Powder> The cosmetic of the present invention contains a silicone powder. The silicone powder is preferably spherical, and its particle size is typically 3 to 20 μm, and preferably 4 to 15 μm. The silicone powder is not particularly limited as long as it is one commonly used in cosmetics, but examples include network silicones, crosslinked silicones, and composite powders of these, such as crosslinked silicone-network silicone copolymers. Specific examples of silicone powders include polymethylsilsesquioxane, (dimethicone / vinyl dimethicone) crosspolymer, dimethicone crosspolymer, (vinyl dimethicone / methicone silsesquioxane) crosspolymer, (diphenyl dimethicone / vinyl diphenyl dimethicone / silsesquioxane) crosspolymer, polysilicone-1 crosspolymer, and polysilicone-22. Among silicone powders, when composite powders in which spherical silicone elastomer powders are coated with silicone resin, such as (vinyl dimethicone / methicone silsesquioxane) crosspolymer, (diphenyl dimethicone / vinyl diphenyl dimethicone / silsesquioxane) crosspolymer, polysilicone-1 crosspolymer, and polysilicone-22, are used, cosmetics with a particularly good feel can be obtained.

[0016] The content of such silicone powder is 1 to 10% by mass, preferably 2 to 7% by mass, of the total cosmetic composition. If it is less than 1% by mass, a sufficient smooth feeling cannot be obtained, and if it exceeds 10% by mass, a whitish cast is likely to occur.

[0017] <(C) Film-Forming Polymer Emulsion> The present invention contains a film-forming polymer emulsion as a component for improving the dispersibility of the silicone powder. A film-forming polymer is a polymeric compound that has the characteristic of forming a hydrophobic film when the solvent or dispersion medium evaporates, and a film-forming polymer emulsion is such a film-forming polymer dispersed in an aqueous component without the use of a surfactant. The film-forming polymer emulsion not only contributes to improving the dispersibility of the silicone powder, but also plays a role in improving the cosmetic durability of the makeup cosmetic when the aqueous liquid cosmetic of the present invention is used as a makeup protection cosmetic to be applied to the skin after makeup has been applied.

[0018] Specific examples of film-forming polymer emulsions include emulsions of alkyl acrylate (co)polymers, emulsions of copolymers of α,β-ethylenically unsaturated carboxylic acid monomers and styrene monomers, etc. Alkyl acrylate (co)polymer emulsions refer to emulsions of homopolymers or copolymers whose raw material monomers are one or more compounds selected from (meth)acrylic acid or its simple esters (e.g., C1 to C8 alkyl esters). Specific examples of the alkyl acrylate (co)polymer emulsion include emulsions designated as ACRYLATES COPOLYMER in INCI (International Nomenclature Cosmetic Ingredient Labeling Names) and emulsions designated as ACRYLATES / ETHYLHEXYL ACRYLATE COPOLYMER. Commercially available products of the former include Yodozole GH800F and Yodozole GH810F (manufactured by Akzo Nobel), and commercially available products of the latter include Daitosol 5000SJ (manufactured by Daito Chemical Industry Co., Ltd.).

[0019] Examples of α,β-ethylenically unsaturated carboxylic acid monomers used as monomers for constituting copolymers of α,β-ethylenically unsaturated carboxylic acid monomers and styrene-based monomers include unsaturated carboxylic acids having 3 to 5 carbon atoms, such as acrylic acid, methacrylic acid, crotonic acid, maleic acid, and itaconic acid, as well as unsaturated carboxylic acid derivatives such as esters, amides, and salts thereof. Specific examples of unsaturated carboxylic acid esters include alkyl esters such as methyl ester, ethyl ester, butyl ester, isobutyl ester, 2-ethylhexyl ester, lauryl ester, and cyclohexyl ester; aryl esters such as phenyl ester and benzyl ester; and hydroxyalkyl esters such as hydroxyethyl ester and 2-hydroxypropyl ester. Specific examples of unsaturated carboxylic acid amides include amides, N-methylamides, N-ethylamides, N-butylamides, and N-methylolamides. Specific examples of unsaturated carboxylic acid salts include ammonium salts, sodium salts, and potassium salts. Specific examples of styrene-based monomers include styrene, α-methylstyrene, and vinyltoluene, with styrene being the most preferred.

[0020] Specific examples of emulsions of copolymers of α,β-ethylenically unsaturated carboxylic acid monomers and styrene monomers include emulsions of copolymers of styrene and one or more monomers selected from (meth)acrylic acid or simple esters thereof, such as an emulsion of a copolymer called (styrene / acrylates) copolymer (INCI name: Styrene / Acrylates Copolymer) (this is also called (alkyl acrylate / styrene) copolymer emulsion in the Quasi-drug Raw Materials Standards 2006); emulsions of copolymers of styrene, ammonium methacrylate, and a monomer selected from (meth)acrylic acid and its simple esters, such as (styrene / acrylates / ammonium methacrylate) copolymer (INCI name: Styrene / Acrylates / Ammonium Methacrylate) and an emulsion of an ammonium salt of a copolymer of acrylic acid or methacrylic acid or one or more monomers of their simple esters with methylstyrene and styrene, which is called ammonium (acrylates / methylstyrene / styrene) copolymer (INCI name: Ammonium Acrylates / Methyl Styrene / Styrene Copolymer).

[0021] Film-forming polymer emulsions are typically commercially available in a state in which the polymer is finely dispersed in an aqueous component at a concentration of 20 to 60% by mass, and such commercially available products can be used in the present invention. The blending amount is 0.05 to 20% by mass, preferably 0.1 to 15% by mass, and more preferably 0.5 to 10% by mass, based on the solids content (i.e., polymer content) of the entire cosmetic. If the blending amount is too small, the dispersibility of the silicone powder will decrease, while if it is too large, the viscosity will increase and the cosmetic will become sticky after application, which are undesirable.

[0022] In the present invention, the ratio of component (C) to component (B) [(C) / (B)] by mass is preferably 0.01 to 10, and more preferably 0.02 to 5. If this ratio is too large, the feel during use tends to be impaired, whereas if it is too small, the dispersibility of component (B) tends to be impaired.

[0023] (D) Cation-modified xanthan gum The present invention contains cation-modified xanthan gum as another component for improving the dispersibility of the silicone powder. Cation-modified xanthan gum is a water-soluble or water-dispersible polymer in which some of the hydroxyl groups contained in xanthan gum have been substituted with quaternary nitrogen atom-containing groups, and has hydroxyl groups (anionic groups) derived from the xanthan gum and cationic groups derived from a cationizing agent.

[0024] Xanthan gum is an anionic polymeric polysaccharide accumulated extracellularly during the fermentation process of a pure culture of the microorganism Xanthomonas campestris. Xanthan gum primarily contains structural units consisting of two glucose units in the main chain and two mannose units and one glucuronic acid unit in the side chain. Xanthan gum is commercially available, and examples of commercially available products include Echo Gum, Monart Gum, Labol Gum, and Keldent (all manufactured by MP Gokyo Food & Chemical Co., Ltd.).

[0025] The cationizing agent having a quaternary nitrogen atom-containing group is preferably a 2,3-epoxypropyltrialkylammonium salt or a 3-chloro-2-hydroxypropyltrialkylammonium salt, and specific examples of these salts include 2,3-epoxypropyltrimethylammonium chloride and 3-chloro-2-hydroxypropyltrimethylammonium chloride. Other specific examples include hexamethonium chloride, phenyltrimethylammonium chloride, benzyltrimethylammonium chloride, and tetramethylammonium chloride.

[0026] The cationic charge amount of the cationized xanthan gum used in the present invention is usually 0.1 to 3 meq / g. The cationic charge amount can be calculated by measuring the total nitrogen content Mt of the cationized xanthan gum and the nitrogen content Ma of the xanthan gum used as a raw material according to the semi-micro Kjeldahl method (Food Additives Standards, 8th Edition, General Testing Methods), and then using the obtained Mt and Ma according to the following formula: Effective cationic charge amount (meq / g) = (Mt - Ma) × 1000 / [(atomic weight of nitrogen) × 100]

[0027] Cationized xanthan gum can be obtained by conventional methods. For example, water and isopropyl alcohol are prepared so that the isopropyl alcohol concentration is 35% by mass or more and 70% by mass or less, and the water, isopropyl alcohol, alkali agent, xanthan gum, and cationizing agent are mixed (mixing step). The mixture obtained in the mixing step is stirred at a temperature above room temperature to react the xanthan gum with the cationizing agent (reaction step). The reaction product is separated from the liquid containing the reaction product obtained in the reaction step (separation step). The reaction product separated in the separation step is washed with alcohol or a water-containing alcohol containing the alcohol (washing step), thereby obtaining cationized xanthan gum. The amount of cationizing agent added to xanthan gum during the reaction is typically 0.05 to 1.5 parts by mass per part by mass of xanthan gum. By appropriately adjusting this amount, cationized xanthan gum with the desired cationic charge can be obtained. Commercially available cationized xanthan gum can be used; a specific example of a commercially available product is Labolgum CX (manufactured by MP Gokyo Food & Chemical Co., Ltd.).

[0028] The amount of cationized xanthan gum blended is 0.001 to 1% by mass, preferably 0.01 to 0.9% by mass, and particularly preferably 0.05 to 0.7% by mass, of the total cosmetic. If the blended amount is too small, the dispersibility of the silicone powder will be insufficient, while if the blended amount is too large, the viscosity will increase and the cosmetic will become sticky or slimy, impairing the feel when used.

[0029] <(E) Surfactant> The cosmetic of the present invention is substantially free of surfactants. As described in Patent Documents 1 and 2, the use of nonionic surfactants or amphoteric surfactants to improve the dispersibility of silicone powders has been known for some time. However, if a significant amount of surfactant is contained in a cosmetic, the water resistance of the cosmetic tends to be significantly reduced. Therefore, it is necessary to minimize the content of these surfactants in the aqueous liquid cosmetic of the present invention. Note that "substantially free of surfactants" does not mean that the cosmetic is completely free of surfactants, but rather that the cosmetic may contain surfactants within a range that does not essentially impair the effects of the present invention, for example, 0.1% by mass or less, particularly 0.01% by mass or less.

[0030] In addition to the above-mentioned components, the aqueous liquid cosmetic of the present invention may contain additives such as components commonly used in cosmetics, for example, water-soluble film-forming agents, water-soluble thickeners, polyhydric alcohols, powders, pH adjusters, lower alcohols, oily components, UV absorbers, UV scattering agents, moisturizers, fragrances, antioxidants, preservatives, sequestering agents, antifoaming agents, fibers, dyes, and various extracts, to the extent that the effects of the present invention are not essentially impaired.

[0031] <(F) Water-soluble film-forming agent> Among these optional components, the incorporation of a water-soluble film-forming agent can enhance the makeup protection effect. When a water-soluble film-forming agent is incorporated, its amount is typically 0.5 to 2% by mass based on the total weight of the cosmetic. Specific examples of water-soluble film-forming agents include polyvinylpyrrolidone (PVP), polyvinyl alcohol, and methyl cellulose. The incorporation of a water-soluble film-forming agent generally tends to cause stickiness, but polyvinylpyrrolidone does not cause stickiness.

[0032] The aqueous liquid cosmetic of the present invention contains a high concentration of water, and therefore has a low viscosity. Its viscosity is usually 6000 [(mPa·s)×(g / cm ３ )] or less, preferably 4000 [(mPa s) × (g / cm ３) or less. The viscosity display value can be measured using a tuning fork type vibration viscometer SV-10 (manufactured by A&D Corporation) under the conditions of a measurement temperature of 25°C, a frequency of 30 Hz, and a measurement time of 30 seconds. In terms of the measurement principle, the physical quantity obtained by this measurement is detected as the product of viscosity and density, and therefore the unit of the viscosity display value is [(mPa s) x (g / cm ３ ) ].

[0033] The aqueous liquid cosmetic of the present invention can be prepared according to conventional methods. For example, it can be produced by uniformly stirring all raw materials using a known stirring method such as a propeller stirrer. The formulation may be in the form of either an emulsion or a liquid (thin emulsion). Depending on the viscosity, the cosmetic can be applied by hand or with a brush, or by using a sprayer, i.e., a spray-type cosmetic. When using a spray-type cosmetic, the viscosity of the cosmetic should be 4,000 [(mPa s) × (g / cm ]] from the standpoint of ease of spraying. ３ ) )] or less, and from the viewpoint of being able to form a uniform coating film simply by spraying, it is preferable that the viscosity indication value is 100 [(mPa s) × (g / cm ３ ) )] or less, and even 10 [(mPa s) × (g / cm ３ ) or less.

[0034] The aqueous liquid cosmetic of the present invention can be used as makeup cosmetics such as foundations and primers, skin care cosmetics such as sunscreen cosmetics, emulsions, creams and serums, and makeup protection cosmetics (overcoats) that improve the staying power of makeup cosmetics. When used as makeup protection cosmetics, it is preferable to use a spray-type cosmetic to prevent makeup from breaking down due to friction during application, and the cosmetic has a viscosity of 100 [(mPa s) × (g / cm ３ ) )] or less, and even 10 [(mPa s) × (g / cm ３) or less, it becomes a uniform mist when sprayed, and a uniform protective film can be formed on the surface to be protected. Examples of spray containers that can be used include trigger spray containers (direct pressure or pressure-accumulating type), dispenser-type pump spray containers, and aerosol spray containers equipped with pressure-resistant containers. Among these, non-gas type pump spray containers are preferred because they are easy to use and environmentally friendly.

[0035] The present invention will be explained in more detail below with reference to examples and comparative examples, but the present invention is not limited to these examples. In the following description, the blending amounts in the formulations are expressed in mass % of the total amount unless otherwise specified. The aqueous liquid cosmetics in the following examples and comparative examples were evaluated as follows.

[0036] (Method for measuring viscosity values) Measurement was carried out using a tuning fork type vibration viscometer (SV-10) manufactured by A&D Co., Ltd. under the following measurement conditions: Measurement temperature: 25°C, Frequency: 30 Hz, Measurement time: 30 seconds

[0037] (Water Resistance) Water repellency was used as a substitute for water resistance, and the water repellency was evaluated as follows. That is, each sample was applied to a Bioskin plate (manufactured by Beaulux), a water droplet was gently dropped on the applied surface, the state of the water droplet formed on the surface was photographed, the contact angle was measured based on the shape, and the value was ranked into four levels (A to D). Since the larger the contact angle, the better the water repellency and water resistance depends on water repellency, A was judged to be the best water resistance and D was the worst. A: Contact angle of 60° or more B: Contact angle of 50° or more and less than 60° C: Contact angle of 20° or more and less than 50° D: Contact angle less than 20°

[0038] (Dispersion state immediately after preparation) Aqueous liquid cosmetics of Examples and Comparative Examples were prepared, and the state of the system immediately after preparation was visually inspected and rated according to the following evaluation criteria. (Evaluation criteria) A: A uniform aqueous liquid cosmetic with absolutely no aggregation of powder components. B: Slight aggregation of powder components observed. C: Significant aggregation of powder components observed. D: The system is non-uniform.

[0039] (Stability) After preparing the aqueous liquid cosmetic, it was stored for one week in a thermostatic chamber in which the temperature changed between -10°C and 10°C in one cycle every 24 hours, and then the state of the system was visually confirmed and rated according to the following evaluation criteria. As is clear from the evaluation criteria, if there was no change in the state of the system even after one week of storage, and if the powder ingredients aggregated but were easily redispersed, the stability was judged to be good. (Evaluation Criteria) A: Almost the same as immediately after preparation. B: A slight change in state was observed (such as floating powder ingredients), but the powder ingredients were redispersed with light shaking to return to a state almost the same as immediately after preparation. C: A significant change in state was observed (such as aggregation of powder ingredients), but vigorously shaking caused them to be redispersed to a state almost the same as immediately after preparation. D: A significant change in state was observed (such as aggregation of powder ingredients), and the aggregated powder ingredients were not redispersed even with vigorously shaking.

[0040] (Squeakiness) Ten evaluators applied each sample to their faces and performed a sensory evaluation on a four-point scale based on the following scoring criteria (scores). (Score) 5 points: Not squeaky at all. 4 points: Not squeaky. 3 points: Average. 2 points: Slightly squeaky. 1 point: Severely squeaky. (Evaluation criteria) A: Average score of 4.0 points or more B: Average score of 3.5 points or more and less than 4.0 points C: Average score of 2.5 points or more and less than 3.5 points D: Average score of less than 2.5 points

[0041] (Shine) Ten evaluators applied each sample to their face and performed a sensory evaluation on a four-point scale based on the following scoring criteria (scores). (Score) 5 points: No shine at all. 4 points: No shine. 3 points: Normal. 2 points: Slight shine. 1 point: Very shiny. (Evaluation criteria) A: Average score of 4.0 points or more B: Average score of 3.5 points or more and less than 4.0 points C: Average score of 2.5 points or more and less than 3.5 points D: Average score of less than 2.5 points

[0042] Examples 1 to 5 and Comparative Examples 1 to 7 <Cosmetics for Makeup Protection> Aqueous liquid cosmetics for makeup protection were prepared according to the formulations shown in Table 1 and evaluated using the evaluation methods described above. The aqueous liquid cosmetics were prepared by adding all ingredients to a container equipped with a propeller stirrer and mixing under stirring at room temperature for 30 minutes. The evaluation results are shown in Table 1.

[0043]

[0044] As is clear from the results in Table 1, the aqueous liquid cosmetic preparations of the present invention had a good feel when used (no squeaky feeling or shine) and were excellent in water resistance, dispersibility, and stability (Examples 1 to 5). Of these examples, the aqueous liquid cosmetic preparations of Examples 1 to 4 had a viscosity indicated value of 10 [(mPa·s)×(g / cm ３ ) or less, and when sprayed using a dispenser-type pump spray container (product name: Z-155-C114, manufactured by GLASEL Co., Ltd.), it was sprayed in the form of a uniform mist. Furthermore, the aqueous liquid cosmetic preparation of Example 5 had a higher viscosity than the aqueous liquid cosmetics of Examples 1 to 4, but when sprayed using the above-mentioned dispenser-type pump spray container, it was sprayed in the form of a mist. However, the state of the sprayed mist was non-uniform compared to the aqueous liquid cosmetics of Examples 1 to 4.

[0045] On the other hand, the aqueous liquid cosmetics of Comparative Examples 1 and 2, which contained a hydrophilic surfactant, had a good feel when used and a good dispersion state immediately after preparation, but were poor in water resistance and insufficient in stability. The aqueous liquid cosmetic of Comparative Example 3, which contained non-cationically modified xanthan gum instead of the cationically modified xanthan gum (D), had equivalent performance immediately after preparation, but aggregation of the powder component (B) was observed over time. The same was true for the aqueous liquid cosmetic of Comparative Example 4, which contained cationized cellulose (Polyquaternium-10), and the aqueous liquid cosmetic of Comparative Example 5, which contained a cationic group-containing acrylic acid copolymer (Polyquaternium-7). Furthermore, the aqueous liquid cosmetic of Comparative Example 6, which contained methyl methacrylate crosspolymer powder instead of silicone powder (B), felt squeaky and shiny, and had a poor feel when used. Furthermore, the aqueous liquid cosmetic of Comparative Example 7, which did not contain component (C), showed significantly poor dispersion of component (C), making it unsuitable for a uniform aqueous liquid cosmetic.

[0046] Examples 6 and 7 and Comparative Examples 8 and 9 Aqueous liquid cosmetics for makeup protection having the formulations shown in Table 2 were prepared in the same manner as in Example 1 and evaluated by the above-mentioned evaluation methods. The results are shown in Table 2 together with the formulations.

[0047]

[0048] As is clear from the results in Table 2, when the amount of silicone powder in component (B) was too small (Comparative Example 8), the feel during use was poor, and conversely, when the amount of silicone powder in component (B) was too large (Comparative Example 9), dispersion of component (B) was insufficient, resulting in insufficient stability.

[0049] According to the present invention, there is provided an aqueous liquid cosmetic that gives a smooth feel to the skin, is free from squeaking and shininess, and is suitable as a makeup cosmetic, a base cosmetic, or a makeup protector cosmetic.

Claims

1. An aqueous liquid cosmetic comprising (A) 70% by mass or more of water, (B) 1 to 10% by mass of silicone powder, (C) 0.05 to 20% by mass of a film-forming polymer emulsion on a solids basis, and (D) 0.01 to 1% by mass of cation-modified xanthan gum, and (E) being substantially free of surfactants.

2. The aqueous liquid cosmetic preparation according to claim 1, wherein the content of the film-forming polymer emulsion (C) is 0.1 to 10% by mass on a solids basis, and the content of the cation-modified xanthan gum (D) is 0.01 to 1% by mass.

3. The aqueous liquid cosmetic according to claim 1 or 2, wherein the ratio of the film-forming polymer emulsion (C) to the silicone powder (B) [(C) / (B)] (mass ratio based on solid content) is 0.01 to 10.

4. The aqueous liquid cosmetic according to claim 1 or 2, wherein component (B) is a silicone elastomer powder.

5. The aqueous liquid cosmetic preparation according to claim 1 or 2, further comprising 0.5 to 2% by mass of (F) a water-soluble film-forming agent.

6. The viscosity display value is 6000 [(mPa s) x (g / cm ３ 3. The aqueous cosmetic preparation according to claim 1, wherein the total amount of the water-soluble polymer is 0.1 or less.

7. The aqueous cosmetic composition according to claim 1 or 2, which is a cosmetic composition for protecting makeup.

8. The viscosity display value is 100 [(mPa s) x (g / cm ３ 3. The aqueous cosmetic preparation according to claim 1, wherein the water-based cosmetic preparation is a spray-type cosmetic preparation, and the water-based cosmetic preparation has a water-based content of 0.1 to 0.2 wt % or less.

9. The aqueous cosmetic preparation according to claim 5, wherein the water-soluble film-forming agent (F) is polyvinylpyrrolidone, polyvinyl alcohol, or methylcellulose.

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