Oil-in-water emulsion composition

Abstract

The present invention provides an oil-in-water emulsion composition containing (A) an aqueous phase containing a diol, (B) an oil phase, (C) a polyoxyalkylene-modified silicone, and (D) a tackifier, the diol content being 1-20 mass% relative to the entire composition, the oil phase content being 1-50 mass% relative to the entire composition, and the tackifier content being 1-50 mass% relative to the entire composition. The content of the polyoxyalkylene-modified silicone (C) is 0.2-2.5 mass%, the tackifier (D) is at least one selected from the group consisting of sodium polyacrylate-grafted starch and acrylic acid (ester)-based crosslinked polymer-2 sodium, and the content of the tackifier (D) is 0.5-5 mass% relative to the whole composition. The oil-in-water type emulsion composition has matte appearance similar to mashed potatoes and can endow skin with natural matte sensation after being coated on the skin, and a user can feel quick absorption sensation and obvious phase inversion sensation without feeling sticky after using the oil-in-water type emulsion composition.

Description

Technical Field

[0001] This invention relates to the field of cosmetics, and more specifically, to an oil-in-water emulsion composition that can be used in cosmetics. Background Technology

[0002] Oil-in-water emulsion compositions are widely used in the cosmetics industry. For example, Patent Document 1 (CN 115243659) discloses an oil-in-water emulsion composition comprising (A) an aqueous phase, (B) an oil phase, and (C) a polyoxyalkylene-modified organosilicon. In the (A) aqueous phase, the total amount of monohydric alcohol and dihydric alcohol is 1–35% by mass, with the monohydric alcohol alone ranging from 1–15% by mass and the dihydric alcohol alone ranging from 1–20% by mass; the (B) oil phase content is 1–50% by mass; and the (C) polyoxyalkylene-modified organosilicon content relative to the overall composition is 0.2–5% by mass. This oil-in-water emulsion composition exhibits excellent emulsification stability.

[0003] In the cosmetics industry, the user experience has always been a key focus for consumers. As consumers' demands for beauty products continue to rise, the traditional cosmetics' singular focus on texture, appearance, and efficacy is no longer sufficient to meet market needs. Modern urban dwellers, in particular, seek products that not only give their skin a natural beauty but also provide a pleasant user experience. Against this backdrop, the requirements for user experience in cosmetics are becoming increasingly refined and diversified, including but not limited to the product's texture, absorbency, refreshing feel, and visual uniqueness.

[0004] Specifically, consumers tend to choose cosmetics that are quickly absorbed by the skin after application, leaving no greasy residue, and imparting a natural matte or special texture. Such products not only effectively improve the appearance of the skin but also enhance comfort and satisfaction during use. Therefore, developing new cosmetic compositions that align with modern aesthetic trends while meeting consumers' high demands for a pleasant user experience is particularly important.

[0005] The technical problem that the invention aims to solve

[0006] Although the water-in-oil emulsion composition disclosed in Patent Document 1 has good emulsification stability, it does not have a matte appearance and cannot give the skin a natural matte effect after use. Furthermore, there is room for improvement in terms of user experience.

[0007] Therefore, the purpose of this application is to provide a water-in-oil emulsion composition that has a matte appearance, imparts a natural matte effect to the skin after use, and allows the user to experience rapid absorption without stickiness.

[0008] means of solving technical problems

[0009] Through repeated research, the inventors of this application discovered that adding a specific thickener to a specific water-in-oil emulsion system can give the emulsion system a matte appearance similar to mashed potatoes. After being applied to the skin, it can give the skin a natural matte feel. Furthermore, after using the water-in-oil emulsion composition of this application, one can feel rapid absorption and a noticeable phase inversion. In addition, by adding a specific oil-absorbing powder to the emulsion system, the user can avoid feeling sticky.

[0010] Specifically, the invention of this application has the following technical structure.

[0011] [1] An oil-in-water emulsion composition comprising (A) an aqueous phase, (B) an oil phase, (C) a polyoxyalkylene-modified silicone and (D) a thickener.

[0012] The aqueous phase (A) contains a diol.

[0013] The content of the diol relative to the whole composition is 1-20% by mass.

[0014] The content of the oil phase (B) relative to the whole composition is 1-50% by mass.

[0015] The content of (C) polyoxyalkylene-modified organosilicon is 0.2–2.5% by mass relative to the overall composition.

[0016] The (D) tackifier is selected from at least one of sodium polyacrylate grafted starch and acrylate (ester) crosslinker-2 sodium, and the content of the (D) tackifier is 0.5 to 5% by mass relative to the whole composition.

[0017] [2] An oil-in-water emulsion composition comprising (A) an aqueous phase, (B) an oil phase, (C) a polyoxyalkylene-modified silicone, (D) a thickener, and (E) an oil-absorbing powder.

[0018] The aqueous phase (A) contains a diol.

[0019] The content of the diol relative to the whole composition is 1-20% by mass.

[0020] The content of the oil phase (B) relative to the whole composition is 1-50% by mass.

[0021] The content of (C) polyoxyalkylene-modified organosilicon is 0.2–2.5% by mass relative to the overall composition.

[0022] The (D) thickener is a thickener that forms a spherical or blocky structure in the system after swelling, and the content of the (D) thickener relative to the whole composition is 0.5 to 5% by mass.

[0023] [3] The water-in-oil emulsion composition according to [2] is characterized in that the (D) thickener is selected from sodium carbomer.

[0024] [4] The water-in-oil emulsion composition according to [1] is characterized in that the composition further contains (E) oil-absorbing powder.

[0025] [5] The oil-in-water emulsion composition according to any one of [2] to [4] is characterized in that the (E) oil-absorbing powder is selected from at least one of silica and aluminum octenyl succinate.

[0026] [6] The oil-in-water emulsion composition according to any one of [2] to [4] is characterized in that the content of the (E) oil-absorbing powder is 0.1 to 3% by mass relative to the total composition.

[0027] [7] The water-in-oil emulsion composition according to any one of [1] to [6] is characterized in that the (C) component is PEG-12 polydimethylsiloxane.

[0028] [8] The water-in-oil emulsion composition according to [7] is characterized in that the PEG-12 polydimethylsiloxane is insoluble in water and precipitates at a concentration of 5 to 20% by mass.

[0029] [9] The water-in-oil emulsion composition according to [7] is characterized in that the HLB of the PEG-12 polydimethylsiloxane calculated using the Griffith formula is less than 10.

[0030]

[10] The water-in-oil emulsion composition according to any one of [1] to [9] is characterized in that the composition further contains at least one (F) ionic surfactant selected from sulfosuccinate diester salt, alkyl allyl sulfonate, alkyl ether sulfonate, sulfosuccinate salt, acylmethyl taurate, and acyl taurate.

[0031]

[11] The water-in-oil emulsion composition according to

[10] is characterized in that the (F) ionic surfactant is N-stearoyl-N-methyltaurate.

[0032]

[12] The oil-in-water emulsion composition according to

[10] or

[11] is characterized in that the content of the (F) ionic surfactant is 0.01 to 1.0% by mass relative to the total composition.

[0033]

[13] The water-in-oil emulsion composition according to any one of [1] to

[12] is characterized in that the composition further contains (G) elastomer.

[0034]

[14] The water-in-oil emulsion composition according to any one of [1] to

[12] is characterized in that the diol is dipropylene glycol.

[0035]

[15] Use of the oil-in-water emulsion composition according to any one of [1] to

[14] in the preparation of cosmetics.

[0036] Invention Effects

[0037] The water-in-oil emulsion composition of the present invention has a matte appearance similar to mashed potatoes, and after being applied to the skin, it can give the skin a natural matte feel. After using the water-in-oil emulsion composition of the present application, users can feel rapid absorption and obvious phase inversion, and do not feel sticky. Detailed Implementation

[0038] The water-in-oil emulsion composition of this application comprises (A) an aqueous phase, (B) an oil phase, (C) a polyoxyalkylene-modified silicone and (D) a thickener, wherein the (A) aqueous phase contains a diol, and the content of the diol relative to the whole composition is 1-20% by mass; the content of the (B) oil phase relative to the whole composition is 1-50% by mass; the content of the (C) polyoxyalkylene-modified silicone relative to the whole composition is 0.2-2.5% by mass; and the (D) thickener is selected from at least one of sodium polyacrylate grafted starch and acrylate (ester) crosslinker-2 sodium, and the content of the (D) thickener relative to the whole composition is 0.5-5% by mass.

[0039] It should be noted that the names of the ingredients in this application refer to the substances referred to by those names in the "Catalogue of Used Cosmetic Ingredients (2021 Edition)" issued by the National Medical Products Administration.

[0040] In this application, by adding specific thickeners to a particular emulsion system, a matte appearance similar to mashed potatoes can be achieved. This is because such specific thickeners, such as sodium polyacrylate grafted starch, sodium carbomer, and acrylate crosslinker-2 sodium, swell in the specific system to form spherical or blocky structures, causing diffuse reflection of light on the surface of the composition rather than specular reflection, thus resulting in an overall matte appearance similar to mashed potatoes or ice cream. If the emulsion system or the thickener is changed, a good matte appearance cannot be obtained, and the absorption, penetration, and phase inversion during use are also insufficient.

[0041] In addition, by adding specific oil-absorbing powders to the emulsified composition in this application, the skin also has a matte finish and does not feel sticky after using the emulsified composition.

[0042] The components in this application are described in detail below.

[0043] (A) Aqueous phase

[0044] The aqueous phase contains a diol and water. The preferred diols are dipropylene glycol and 1,3-butanediol. The content of the diol relative to the total composition is preferably 1-20% by mass, more preferably 5-15% by mass. If the diol content is too low, emulsification may fail; conversely, if the diol content is too high, a stable emulsification effect may not be obtained.

[0045] (B) Oil phase

[0046] As for oils that can be miscible with the oil phase, there are no particular limitations, but examples include silicone oils (e.g., dimethylpolysiloxane, diphenylpolysiloxane, octamethylcyclotetrasiloxane, decamethylcyclopentasiloxane, decamethylcyclohexasiloxane, amino-modified polysiloxane, polyether-modified polysiloxane, alkyl-modified polysiloxane, fluorine-modified polysiloxane, etc.); hydrocarbon oils (e.g., liquid paraffin, ceresin, squalane, petrolatum, microcrystalline wax, etc.); and ester oils (e.g., isopropyl myristate). Esters, Cetyl Octanoate, Octyl Dodecyl Myristate, Isopropyl Palmitate, Butyl Stearate, Hexyl Laurate, Myristyl Myristate, Decyl Oleate, Hexyl Decyl Dimethyl Octanoate, Cetyl Lactate, Myristyl Lactate, Lanolin Acetate, Isocetyl Stearate, Isocetyl Isostearate, Cholesterol 12-Hydroxystearate, Glycol Di-2-Ethylhexanoate, Dipentaerythritol Fatty Acid Ester, N Monoisostearic Acid Alkyl glycol esters, neopentyl glycol didecanoate, diisostearyl malate, glyceryl di-2-heptylundecanoate, trimethylolpropane tri-2-ethylhexanoate, trimethylolpropane triisostearate, tricaprylic acid glyceryl ester, triisopalmitoate, trimethylolpropane triisostearate, cetyl 2-ethylhexanoate, 2-ethylhexyl palmitate, trimyristate, tri-2-heptylundecanoate, castor oil fatty acid methyl ester, oil Acid oil base esters, acetylglycine esters, 2-heptyl undecyl palmitate, di-2-heptyl undecyl adipic acid ester, diisobutyl adipic acid ester, N-lauroyl-L-glutamic acid-2-octyl dodecyl ester, ethyl laurate, di-2-ethylhexyl sebacate, 2-hexyl decyl myristate, 2-hexyl decyl palmitate, 2-hexyl decyl adipic acid ester, diisopropyl sebacate, 2-ethylhexyl succinate, triethyl citrate, etc.

[0047] The oil phase content relative to the emulsion as a whole is preferably 1 to 50% by mass, preferably 5 to 45% by mass, and more preferably 10 to 20% by mass.

[0048] Furthermore, the content of silicone oil in the oil phase is preferably 50% by mass or less. If it exceeds 50% by mass, the emulsion particles may sometimes agglomerate at high temperatures.

[0049] (C) Polyoxyalkylene-modified organosilicon

[0050] (C) Polyoxyalkylene-modified organosilicon is a water-soluble organosilicon surfactant in which a portion of the methyl group of polydimethylsiloxane is replaced with polyethylene glycol. It has excellent emulsifying, dispersing and penetrating properties and is frequently used in the cosmetics industry. It is represented by the following general formula (1).

[0051]

[0052] (where R is in the formula) 1 It is a hydrogen or an alkyl group having 1 to 6 carbon atoms. At least one of A has the formula: -(CH2). a -(C2H4O) b -(C3H6O) c -R 2 (where R is in the formula) 2 The first denoted by A is a polyoxyalkylene group consisting of 1 to 6 hydrogen atoms or alkyl groups having 1 to 6 carbon atoms, where a is an integer from 1 to 6, b is an integer from 0 to 50, c is an integer from 0 to 50, and b+c is at least 5. Other denoted A's are either hydrogen atoms or alkyl groups having 1 to 6 carbon atoms. m is an integer from 1 to 200, and n is an integer from 0 to 50.

[0053] In the polyoxyalkylene modified organosilicon of (C), PEG-12 polydimethylsiloxane in general formula (1) with c = 0 and b = 12 is particularly preferred.

[0054] PEG-12 polydimethylsiloxane, as a commercially available product, includes DOWSIL ES-5373 (manufactured by DOW TORE), SH3772M, SH3773M, SH3775M (all manufactured by DOW TORE), IM-22 (manufactured by Wacker Chemical), etc.

[0055] The content of component (C) relative to the whole composition is preferably 0.2 to 2.5% by mass, more preferably 0.5 to 2.5% by mass.

[0056] (D) Tackifier

[0057] Specific (D) tackifiers used in this invention include, for example, sodium polyacrylate grafted starch, sodium carbomer, and acrylate crosslinker-2 sodium. These tackifiers may be used alone or in combination with more than one.

[0058] The aforementioned (D) thickener, upon swelling in the specific emulsification system of this invention, forms a spherical or blocky structure, resulting in diffuse reflection of light rather than specular reflection, thus giving the overall product a matte appearance similar to mashed potatoes or ice cream. The content of the (D) thickener relative to the total composition is 0.5% to 5% by mass.

[0059] Furthermore, when the above-mentioned (D) thickener is used in emulsion systems other than the emulsion system of the present invention, a good matte appearance cannot be achieved, and the absorption, penetration and phase inversion during use are also insufficient.

[0060] (E) Oil-absorbing powder

[0061] The water-in-oil emulsion composition of the present invention may further contain specific (E) oil-absorbing powder. By containing specific (E) oil-absorbing powder in the emulsion composition, the stickiness of the composition can be further reduced, while enhancing the matte effect on the skin after use.

[0062] As the (E) oil-absorbing powder, at least one selected from silica and aluminum octenyl succinate can be used. The content of the (E) oil-absorbing powder is 0.1–3% by mass relative to the total composition.

[0063] (F) Ionic surfactants

[0064] In the oil-in-water emulsion composition of the present invention, an ionic surfactant other than component (C) can be further incorporated. The stability of the composition is improved upon the addition of the ionic surfactant.

[0065] The ionic surfactants used in this invention are substances other than the organosilicon surfactants mentioned in (C) above, and can be used without particular limitation as long as they exhibit ionic properties.

[0066] (F) The amount of ionic surfactant mixed in is preferably 0.01 to 1.0% by mass relative to the total composition, more preferably 0.01 to 0.1% by mass. The presence of ionic surfactant can further improve the stability of the composition; however, if the amount of ionic surfactant is too large, the stability of the composition may sometimes decrease.

[0067] In addition, the preferred mixing ratio of (C) polyoxyalkylene modified organosilicon to ionic surfactant is 1:0.01 to 1:0.1.

[0068] As the (D) ionic surfactant that can be mixed in this invention, the preferred anionic surfactant is a sulfonate-type anionic surfactant. Examples of sulfonate-type anionic surfactants include sulfosuccinate diester salts, alkyl allyl sulfonates, alkyl ether sulfonates, sulfosuccinate salts, acylmethyl taurate, and acyl taurate.

[0069] In this invention, N-acylmethyl taurate is particularly preferred as an ionic surfactant. Further, N-stearoyl-N-methyl taurate is preferred among the N-acylmethyl taurates represented by the following general formula (2).

[0070]

[0071] (G) Organosilicon elastomers

[0072] In this invention, (G) organosilicon elastomers can be further mixed in.

[0073] Adding silicone elastomers to compositions such as cosmetics can provide users with a smooth and premium feel.

[0074] Examples of silicone elastomers include, for instance, silicone elastomers (organopolysiloxanes). Among silicone elastomers, for example, are cross-linked silicones (cross-linked organopolysiloxanes) comprising a silicone polymer that has undergone three-dimensional cross-linking. Using silicone elastomers can suppress stickiness and achieve a smooth (slippery) feel when applied to the skin.

[0075] As for the silicone elastomer that can be used in the compositions of this application, there is no particular limitation as long as it is a substance that can be applied to the skin. Examples of silicone elastomers include polydimethylsiloxane crosslinked polymers, polydimethylsiloxane / vinyl polydimethylsiloxane crosslinked polymers, polydimethylsiloxane / phenylvinyl polydimethylsiloxane crosslinked polymers, vinyl polydimethylsiloxane / lauryl polydimethylsiloxane crosslinked polymers, lauryl polydimethylsiloxyethyl polydimethylsiloxane / bis-vinyl polydimethylsiloxane crosslinked polymers, alkyl (C30-45) cetearyl polydimethylsiloxane crosslinked polymers, and cetearyl polydimethylsiloxane crosslinked polymers.

[0076] In silicone elastomers, for example, commercially available products can be used. These commercially available products can be mixtures of silicone elastomers and oily components. The oily component in these products is not particularly limited as long as it is a substance that can be applied to the skin. Examples of commercially available products containing silicone elastomers include Gransil DMG-3 (Grant Co., Ltd.), which contains 88% by mass of polysilicon-1112 (as a silicone elastomer) and 88% by mass of polydimethylsiloxane (as an oily component), and other products such as KSG-16 (Shin-Etsu Chemical Industry Co., Ltd.) and Dow Corning 9041 Silicone Elastomer Blend (Dong Leda Corning Co., Ltd.).

[0077] The content of organosilicon elastomer in the composition of this application is preferably 0.1% by mass or more, more preferably 0.3% by mass or more, relative to the total amount of the composition.

[0078] Other ingredients

[0079] Within the scope that does not affect the effectiveness of this application, various cosmetic additives, such as pH adjusters, chelating agents, stabilizers, preservatives, and colorants, may be added to the composition.

[0080] As a cosmetic product, glycerin can be further blended in to provide the "smooth feel upon application" desired by the purchaser. However, high concentrations of glycerin typically result in a sticky texture and poor usability. In this invention, even with high concentrations of glycerin, the product does not become sticky and achieves a smooth feel.

[0081] The method for manufacturing the oil-in-water emulsion composition of the present invention includes a vesicle forming step in which (A) an aqueous phase is mixed with (C) a polyoxyalkylene-modified organosilicon to form vesicles. Furthermore, a step of adding an ionic surfactant to the aqueous solution containing vesicles obtained by the above step may also be added.

[0082] In the method for manufacturing the oil-in-water emulsion composition of the present invention, initially, (A) an aqueous phase is mixed with (C) a polyoxyalkylene-modified organosilicon to form vesicles as precursors for nanodiscs. Here, the term (A) aqueous phase is not particularly limited as long as it is a formulation in which water and diol are used as the main medium. In addition to water and diol, ingredients commonly used in cosmetics can be mixed in amounts that do not impair the stability of the nanodiscs.

[0083] (C) polyoxyalkylene-modified organosilicon is pre-dissolved in a diol, which is a component of the aqueous phase (A) above, and then mixed with water, which is the remaining component of the aqueous phase (A), thereby forming vesicles in the aqueous phase as precursors of nanodiscs formed from polyoxyalkylene-modified organosilicon.

[0084] By adding oil to an aqueous phase containing vesicles that serve as precursors to the nanodiscs and stirring, the vesicles serving as precursors to the nanodiscs are transformed into nanodiscs at the oil-water interface and adsorbed, thereby forming an emulsion system.

[0085] The water-in-oil emulsion composition of the present invention is suitable for use, for example, as a cosmetic. When used as a cosmetic, in addition to the aforementioned essential components, it can generally be mixed in amounts within a range that does not impair the stability of the ingredients used in pharmaceuticals or cosmetics. Furthermore, this composition containing nanodiscs can be mixed with amounts of oil that are normally incompatible for solubilization, while suppressing stickiness and achieving a refreshing feel.

[0086] In addition, other prescription ingredients can be pre-mixed in the aqueous phase before vesicle formation, or can be mixed in the prescription after vesicle formation.

[0087] The cosmetics involved in this invention are not particularly limited in their use; for example, they are suitable for use as toners, skin care serums, lotions, creams, hair creams, massage creams, makeup removers, etc.

[0088] Example

[0089] The present invention will be further described in detail below with reference to embodiments thereof, but the present invention is not limited to these embodiments. Furthermore, unless otherwise specified, the mixing amount will be expressed as mass percent (%).

[0090] The raw materials used in the examples are as follows:

[0091] Moisturizer: Glycerin USP 99.5% (IOIOLEOCHEMICALS)

[0092] Dipropylene Glycol (Lyondell)

[0093] Butylene glycol

[0094] Tackifier: Xanthan gum

[0095] Sodium carbomer AQUPEC MG N40R (Sumitomo Seika Co., Ltd.)

[0096] Sodium polyacrylate grafted starch MAKIMOUSSE 25 (Daito Kasei Corporation)

[0097] Acrylic (ester) cross-linked polymer - 2-sodium ARON NT-Z (TOAGOSEICO.,LTD.)

[0098] Carbopol 981 Polymer (Lubrizol Advanced)

[0099] Materials, Inc.)

[0100] Sodium acrylate / sodium acryloyldimethyltaurate copolymer SIMULGEL

[0101] EG QD (SEPPIC S.A.)

[0102] Neutralizing agents: sodium hydroxide, potassium hydroxide

[0103] Active agent: PEG-12 polydimethylsiloxane DOW CORNING ES-5373

[0104] FORMULATION AID (Toray Dow Corning Co., Ltd.)

[0105] Sodium N-methyl-N-stearoyltaurate NIKKOL SMT

[0106] (Nikao Chemicals Co., Ltd.)

[0107] Acrylates / C10-30 alkyl acrylate crosspolymer PEMULENTR-2 (Lubrizol Advanced Materials, Inc.)

[0108] PPG-13-decyltetradeceth-24 ESSEF 1324D NOF Corporation

[0109] Oil component: α-olefin polymer

[0110] Tris(ethylhexanoate) glycerol

[0111] Polydimethylsiloxane

[0112] Chelating agent: disodium EDTA

[0113] Stabilizer: sodium metabisulfite

[0114] Powder: silica

[0115] Starch octenyl succinate aluminum OCTIE (Nisshin Chemical Co., Ltd.)

[0116] Synthetic fluorophlogopite PDM-5L (Topi Industries, Ltd.)

[0117] Preservative: phenoxyethanol

[0118] [Test Example] Preparation of basic emulsion composition

[0119] According to the ingredients and proportions recorded in Table 1, the moisturizer, thickener, surfactant and other ingredients were dissolved in deionized water. Then, oil was added to the solution, and the mixture was stirred and emulsified to form an emulsion composition. The appearance of the emulsion composition was then observed.

[0120]

[0121] It can be seen that the emulsion composition formed using the specific emulsion system and specific thickener of this application has a matte appearance, while the emulsion composition of the comparative test example without the specific thickener has a bright reflective appearance.

[0122] Examples 1-3 and Comparative Examples 1-3

[0123] Emulsified compositions for cosmetic use were prepared according to the ingredients and proportions listed in Table 2, and their appearance and feel on the skin were evaluated.

[0124] [Appearance Evaluation]

[0125] Under a constant light source, observe the degree of reflectivity on the sample surface:

[0126] ○: Matte finish, completely non-reflective

[0127] ○△: Overall matte finish with a slight sheen.

[0128] △: Overall matte finish with a few localized highlights

[0129] ×: Presents a bright reflection

[0130] [Appearance after application to the skin]

[0131] Take 0.2g of sample, apply it to the face and gently massage until fully absorbed. After absorption, observe the reflectivity of the skin surface under a constant light source:

[0132] ○: Matte finish, completely non-reflective

[0133] ○△: Overall matte finish with a slight sheen.

[0134] △: Overall matte finish with a few localized highlights

[0135] ×: Presents a bright reflection

[0136] [Sticky feeling rating]

[0137] Ten professional reviewers each took a 0.2g sample, applied it to their face, and gently massaged it until fully absorbed. After absorption, they gently touched their faces and categorized their responses based on the number of reviewers who answered "the skin does not feel sticky," as follows:

[0138] ○: 9-10 people

[0139] ○△: 7-8 people

[0140] △: 5-6 people

[0141] △×: 3-4 people

[0142] ×: 0-2 people

[0143] [Absorption Evaluation]

[0144] Ten professional reviewers each took 0.2g of sample, applied it to their face, and gently massaged it until fully absorbed. After absorption, they gently touched their faces and were categorized according to the number of reviewers who answered "how the sample felt absorbed into the skin" as follows:

[0145] ○: 9-10 people

[0146] ○△: 7-8 people

[0147] △: 5-6 people

[0148] △×: 3-4 people

[0149] ×: 0-2 people

[0150] [Sensation of Transition]

[0151] Ten professional reviewers each took a 0.2g sample, applied it to their face, and gently massaged it until fully absorbed. Reviewers were categorized according to the number of those who answered "during the application process, I felt the cream melt and release water at a certain moment," as follows:

[0152] ○: 9-10 people

[0153] ○△: 7-8 people

[0154] △: 5-6 people

[0155] △×: 3-4 people

[0156] ×: 0-2 people

[0157]

[0158] As can be seen from Table 2, the emulsified compositions using the specific thickener of this application, even after the addition of commonly used cosmetic additives, still exhibit a matte appearance and, when applied to the skin, maintain a natural matte finish without appearing oily. Furthermore, when using the emulsified compositions of this application, a noticeable absorption and phase transition are felt, without any greasy feeling. In contrast, the compositions of Comparative Examples 1-3 using other thickeners exhibit a bright reflective sheen and a glossy appearance when applied to the skin; moreover, the absorption and phase transition of these compositions are lower than those of the compositions of Examples 1-3.

[0159] Examples 4, 5 and Comparative Example 4

[0160] Emulsified compositions for cosmetic use were prepared according to the ingredients and proportions listed in Table 3, and their appearance and feel on the skin were evaluated.

[0161]

[0162] In Example 4, no oil-absorbing powder was added. Otherwise, the emulsified composition was obtained in the same manner as in Example 1. Compared with Examples 1 and 5, the stickiness of Example 4 was slightly increased, and the matte finish of the skin after use was weaker. However, in Comparative Example 4, which used powder other than the oil-absorbing powder of this application, the matte finish of the skin after use was further weakened than that of Example 4 without oil-absorbing powder.

[0163] Examples 6 and 7

[0164] Emulsified compositions for cosmetic use were prepared according to the ingredients and proportions listed in Table 4, and their appearance and feel on the skin were evaluated.

[0165]

[0166] In Examples 6 and 7, the ratio of diols was changed. It can be seen that the emulsion system of this application can exhibit a matte appearance and achieve a good user experience within a wide range of diol ratios.

[0167] Examples 8-11

[0168] Emulsified compositions for cosmetic use were prepared according to the ingredients and proportions listed in Table 5, and their appearance and feel on the skin were evaluated.

[0169]

[0170] In Examples 8-11, the content of surfactant was varied. It can be seen that the emulsion system of this application can exhibit a matte appearance and achieve a good user experience within a wide range of surfactant ratios.

[0171] Examples 12-14 and Comparative Examples 5 and 6

[0172] Emulsified compositions for cosmetic use were prepared according to the ingredients and proportions listed in Table 6, and their appearance and feel on the skin were evaluated.

[0173]

[0174] In Examples 12-14, the content of the tackifier was varied. It can be seen that the emulsion system of this application can exhibit a matte appearance and achieve a good user experience within a wide range of tackifier proportions. However, the compositions of Comparative Example 5, with a tackifier content of 0.2%, and Comparative Example 6, which did not use the tackifier and oil-absorbing powder of this application, experienced stratification and could not yield a stable emulsion composition.

[0175] Comparative Examples 7-10

[0176] Emulsified compositions for cosmetic use were prepared according to the ingredients and proportions listed in Table 7, and their appearance and feel on the skin were evaluated.

[0177]

[0178] In Comparative Examples 7-8, the emulsification system was changed, that is, the type and amount of surfactant were changed. It can be seen that although Comparative Examples 7-8 can still form an emulsion composition, it cannot present a good matte appearance and the user experience is also worse.

[0179] Therefore, to achieve a matte finish and a good user experience, it is not only necessary to use specific thickeners, but also to use specific thickeners in specific emulsion systems.

[0180] Examples 15-18

[0181] In Examples 15-18, the amount of oil added was varied according to the proportions in Table 8, and the appearance and feel of the resulting compositions were evaluated.

[0182] It can be seen that the composition of this application can form a matte appearance in a wide range of oil content, and can also make the skin feel matte after use, and can provide a good user experience.

[0183]

[0184] Comparative Example 11

[0185] The composition was formulated according to the composition of test examples 10-1 and 10-2 in Patent Document 1, and the appearance and feel of use were evaluated.

[0186]

[0187] The composition prepared according to the experimental example in Patent Document 1 cannot achieve the matte appearance of the present invention, and the phase transition sensation of the present invention cannot be felt during use.

Claims

1. An oil-in-water emulsified composition comprising (A) an aqueous phase, (B) an oil phase, (C) a polyoxyalkylene-modified silicone, and (D) a tackifier, the (A) aqueous phase containing a glycol, the content of the glycol being 1 to 20 mass% relative to the entire composition, the (B) oil phase being contained in an amount of 1 to 50 mass% relative to the entire composition, the (C) polyoxyalkylene-modified silicone being contained in an amount of 0.2 to 2.5 mass% relative to the entire composition, the (D) tackifier being at least one selected from the group consisting of sodium polyacrylate grafted starch and sodium acrylates crosspolymer-2, and the content of the (D) tackifier being 0.5 to 5 mass% relative to the entire composition.

2. An oil-in-water emulsified composition comprising (A) an aqueous phase, (B) an oil phase, (C) a polyoxyalkylene-modified silicone, (D) a tackifier, and (E) an oil-absorbing powder, the (A) aqueous phase containing a glycol, the content of the glycol being 1 to 20 mass% relative to the entire composition, the (B) oil phase being contained in an amount of 1 to 50 mass% relative to the entire composition, the (C) polyoxyalkylene-modified silicone being contained in an amount of 0.2 to 2.5 mass% relative to the entire composition, the (D) tackifier being a tackifier which forms a spherical or massive structure in the system after swelling, and the content of the (D) tackifier being 0.5 to 5 mass% relative to the entire composition.

3. The oil-in-water emulsion composition according to claim 2, characterized in that, the (D) tackifier being at least one selected from the group consisting of carbomer sodium.

4. The oil-in-water emulsion composition according to claim 1, characterized by, the composition further contains (E) an oil-absorbing powder.

5. The oil-in-water emulsified composition according to any one of claims 1 to 4, characterized by, the (E) oil-absorbing powder being at least one selected from the group consisting of silica and aluminum starch octenylsuccinate.

6. The oil-in-water emulsified composition according to any one of claims 1 to 4, characterized by, the content of the (E) oil-absorbing powder being 0.1 to 3 mass% relative to the entire composition.

7. The oil-in-water emulsion composition according to any one of claims 1 to 6, characterized in that, the (C) ingredient being PEG-12 dimethicone.

8. The oil-in-water emulsion composition according to claim 7, characterized in that, the PEG-12 dimethicone is not dissolved in water but precipitated at a concentration of 5 to 20 mass%.

9. The oil-in-water emulsion composition according to claim 7, characterized by, the PEG-12 dimethicone has an HLB calculated by Griffin's formula of less than 10.

10. The oil-in-water emulsified composition according to any one of claims 1 to 9, characterized by, the composition further contains at least one (F) ionic surfactant selected from the group consisting of sulfosuccinic acid diester salts, alkylallyl sulfonic acid salts, alkyl ether sulfonic acid salts, sulfosuccinic acid ester salts, acyl methyl taurine salts, and acyl taurine salts.

11. The oil-in-water emulsion composition according to claim 10, characterized in that, the (F) ionic surfactant being N-stearyl-N-methyl taurine salt.

12. The oil-in-water emulsion composition according to claim 10 or 11, characterized in that, the content of the (F) ionic surfactant being 0.01 to 1.0 mass% relative to the entire composition.

13. The oil-in-water emulsion composition according to any one of claims 1 to 12, characterized in that, the composition further contains (G) an elastomer.

14. The oil-in-water emulsion composition according to any one of claims 1 to 12, characterized in that, the glycol being dipropylene glycol.

15. Use of the oil-in-water emulsified composition according to any one of claims 1 to 14 in the production of a cosmetic.

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