Water-based liquid powder

Abstract

To provide an aqueous liquid cosmetic which gives a smooth feel to the skin, is free from squeaking and shininess, and is suitable as a cosmetic for protecting makeup or a cosmetic for makeup. [Solution] This aqueous liquid cosmetic contains (A) 70% by mass or more of water, (B) 1 to 10% by mass of silicone powder, (C) 0.5 to 20% by mass of a film-forming polymer emulsion based on the solid content, and (D) 0.01 to 1% by mass of cation-modified xanthan gum, and (E) is substantially free of surfactants. It preferably further contains 0.5 to 2% by mass of (F) a water-soluble film-forming agent. The aqueous liquid cosmetic has a viscosity indicated by a value of 6000 [(mPa·s)×(g / cm 3 ) or less, and the dosage form may be either emulsion or liquid (thin emulsion).

Description

[Technical Field]

[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. [Background technology]

[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 cosmetics containing the same (see claims 1 and 5). It states that the use of this cosmetic raw material allows the silicone rubber powder to be uniformly dispersed throughout the cosmetic, resulting in cosmetics that have a good feel on the fingers and skin, spread easily, and are easy to 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 that they uniformly disperse silicone powder, but because both use a surfactant to prepare the aqueous dispersion of silicone powder, the surfactant is included in the cosmetic preparation, which poses the problem of easily impairing water resistance and durability of cosmetic effects, which are important performance requirements for cosmetics.

[0006] Furthermore, methods for uniformly dispersing silicone powder without using surfactants are also being 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). It describes that when used in the preparation of aqueous cosmetics, cosmetics can be obtained that are excellent in dispersibility, dispersion stability, easy redispersibility, dispersion stability over time, and a moist feel when used (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 is easily removed from the skin by 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 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). [Prior art documents] [Patent documents]

[0008] [Patent Document 1] Japanese Patent Application Publication No. 10-175816 [Patent Document 2] Japanese Patent Application Laid-Open No. 2002-235004 [Patent Document 3] Japanese Patent Application Laid-Open No. 2005-247720 DISCLOSURE OF THE INVENTION [Problem to be solved by the invention]

[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. [Means for solving the problem]

[0010] As a result of extensive research conducted by the present inventors to solve the above problems, they discovered that when a film-forming polymer emulsion and a small amount of cation-modified xanthan gum are used in combination with a silicone powder, the dispersibility of the silicone powder is dramatically improved, 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 containing (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) substantially no surfactant. [Effects of the Invention]

[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. BEST MODE FOR CARRYING OUT THE INVENTION

[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. 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, with a particle size of typically 3 to 20 μm, 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, the use of 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, can produce cosmetics that are particularly pleasant to use.

[0016] The content of such silicone powder is 1 to 10% by mass, and 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 one 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 and emulsions of copolymers of α,β-ethylenically unsaturated carboxylic acid monomers and styrene monomers. 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-C8 alkyl esters). Specific examples of alkyl acrylate (co)polymer emulsions include emulsions named ACRYLATES COPOLYMER and ACRYLATES / ETHYLHEXYL ACRYLATE COPOLYMER in the International Nomenclature Cosmetic Ingredient Labeling Names (INCI). Examples of commercially available products of the former include Yodozole GH800F and Yodozole GH810F (manufactured by Akzo Nobel), and examples of commercially available products of the latter include Daitosol 5000SJ (manufactured by Daito Kasei Kogyo Co., Ltd.).

[0019] In addition, α,β-ethylenically unsaturated carboxylic acid monomers used as monomers 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 their esters, amides, and salts. 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. Furthermore, 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 commonly used.

[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 their simple esters, 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, called (styrene / acrylates / ammonium methacrylate) copolymer (INCI name: Styrene / Acrylates / Ammonium Methacrylate Copolymer); and emulsions of ammonium salts of copolymers of acrylic acid, methacrylic acid, or one or more monomers of their simple esters with methylstyrene and styrene, called (acrylates / methylstyrene / styrene) ammonium copolymer (INCI name: Ammonium Examples of suitable emulsions include emulsions of copolymers known as 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 low, the dispersibility of the silicone powder will decrease, while if it is too high, 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 cationically modified xanthan gum as another component for improving the dispersibility of the silicone powder. Cationically 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 that accumulates extracellularly during the fermentation process of a pure culture of the microorganism Xanthomanas Campestris. Xanthan gum primarily contains two glucose units in the main chain, two mannose units in the side chain, and one glucuronic acid unit. Xanthan gum is commercially available, including 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 of the cationized xanthan gum used in the present invention is usually 0.1 to 3 meq / g. The cationic charge can be calculated from the total nitrogen content Mt of the cationized xanthan gum and the nitrogen content Ma of the xanthan gum used as a raw material by the semi-micro Kjeldahl method (Food Additives Official Standards, 8th Edition, General Testing Methods) and the obtained Mt and Ma according to the following formula: Effective cationic charge (meq / g) = (Mt-Ma) × 1000 / [(atomic weight of nitrogen) × 100]

[0027] Cationized xanthan gum can be obtained by a conventional method. 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. 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. An example of a commercially available product is Labol Gum 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 blending amount is too low, the dispersibility of the silicone powder will be insufficient, while if the blending amount is too high, 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, the presence of significant amounts of surfactants in a cosmetic tends to significantly reduce the cosmetic's water resistance. Therefore, it is necessary to minimize the content of these surfactants in the aqueous liquid cosmetic of the present invention. Note that "substantially free" 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 substantially 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, such as 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 ingredients, 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 usually 0.5 to 2% by mass based on the total amount 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 expressed as 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. The physical quantity obtained by this measurement is detected as the product of viscosity and density in terms of the measurement principle, so 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, it can be used as a cosmetic that can be applied by hand or with a brush, or as a cosmetic that can be applied 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 viscosity of the cosmetic is 100 [(mPa·s)×(g / cm 3 )] or less, and even 10[(mPa·s)×(g / cm 3) or less, it will become a uniform mist when sprayed, and will be able to form a uniform protective film 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. [Example]

[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 display value) Measurements were carried out under the following conditions using an A&D tuning fork vibration viscometer (SV-10). Measurement temperature: 25℃ Frequency: 30Hz Measurement time: 30 seconds

[0037] (water resistance) Water repellency was evaluated as follows, using water repellency as a substitute for water resistance. Specifically, each sample was applied to a Bioskin plate (manufactured by Beaulax), a drop of water was gently dropped onto the applied surface, and the state of the water droplet formed on the surface was photographed. The contact angle was measured based on the shape of the droplet, 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, water resistance was judged to be A as the best and D as the worst. A: Contact angle is 60° or more B: Contact angle is 50° or more and less than 60° C: Contact angle is 20° or more and less than 50° D: Contact angle less than 20°

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

[0039] (stability) After preparing the aqueous liquid cosmetic preparations, they were 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 judged according to the following evaluation criteria: As is clear from the evaluation criteria, if the state of the system remained unchanged even after one week of storage, and if the powder components aggregated but could be 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 is observed (such as floating of powder components), but by shaking lightly, the powder components are redispersed and the state becomes almost the same as immediately after preparation. C: Significant changes in state are observed (such as aggregation of powder components), but when shaken vigorously, the powder is redispersed and returns to a state almost identical to that immediately after preparation. D: Significant changes in state are observed (such as agglomeration of powder components), and the agglomerated powder components do not redisperse even with vigorous shaking.

[0040] (creak) Ten evaluators applied each sample to their faces and conducted a sensory evaluation on a four-point scale based on the following scoring criteria (score). (Score) 5 points: No squeaking at all. 4 points: No squeak. 3 points: Average. 2 points: Slightly creaky. 1 point: Severely creaky. (Evaluation criteria) A: Average score of 4.0 or above B: Average score between 3.5 and 4.0 C: Average score between 2.5 and 3.5 D: Average score below 2.5 points

[0041] (Shiny) Ten evaluators applied each sample to their faces and conducted a sensory evaluation on a four-point scale based on the following scoring criteria (score). (Score) 5 points: No irritation at all. 4 points: No problem. 3 points: Average. 2 points: Slightly shiny. 1 point: Terrible and painful. (Evaluation criteria) A: Average score of 4.0 or above B: Average score between 3.5 and 4.0 C: Average score between 2.5 and 3.5 D: Average score below 2.5 points

[0042] Examples 1 to 5 and Comparative Examples 1 to 7 <Makeup protection cosmetics> 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] [Table 1]

[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 viscosity values ​​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 hydrophilic surfactants, 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 incorporated non-cationically modified xanthan gum instead of the cationically modified xanthan gum (D) component, produced an aqueous liquid cosmetic with 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 incorporated cationized cellulose (Polyquaternium-10), and the aqueous liquid cosmetic of Comparative Example 5, which incorporated a cationic group-containing acrylic acid copolymer (Polyquaternium-7). Furthermore, the aqueous liquid cosmetic of Comparative Example 6, which incorporated 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 incorporate component (C), showed significantly poor dispersion of component (C), making it unsuitable for a uniform aqueous liquid cosmetic.

[0046] Examples 6 to 7 and Comparative Examples 8 to 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 using the evaluation methods described above. The results are shown in Table 2 together with the formulations.

[0047] [Table 2]

[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 of use was poor, and conversely, when the amount of silicone powder in component (B) was too large (Comparative Example 9), the dispersion of component (B) was insufficient, resulting in insufficient stability. [Industrial Applicability]

[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. 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, based on the solid content, of a film-forming polymer emulsion; and (D) 0.01 to 1% by mass of cation-modified xanthan gum; and (E) being substantially free of surfactants.

2. 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, based on the solid content, and the content of the cation-modified xanthan gum (D) is 0.01 to 1% by mass.

3. 3. The aqueous liquid cosmetic according to claim 1, wherein the usage ratio of the film-forming polymer emulsion (C) to the silicone powder (B) [(C) / (B)] (mass ratio on a solids basis) is 0.01 to 10.

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

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

6. The viscosity display value is 6000 [(mPa·s) × (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. 3. The aqueous cosmetic preparation according to claim 1, which is a cosmetic preparation for protecting makeup.

8. The viscosity display value is 100 [(mPa s) × (g / cm ３ 8. The aqueous cosmetic preparation according to claim 7, wherein the aqueous cosmetic preparation is a spray-type cosmetic preparation, and the average molecular weight of the aqueous cosmetic preparation is 1000 or less.

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