Skin-nourishing makeup-keeping liquid foundation for oily skin

Abstract

The invention discloses a skin-nourishing makeup-maintaining liquid foundation for oily skin, which comprises a water phase and an oil phase, and also comprises bis-diglycerol polyacyl adipate, trimethylsiloxy silicate ester, titanium dioxide subjected to surface treatment and toner, the bis-diglycerol polyacyl adipate-2, the titanium dioxide subjected to surface treatment, the toner and the trimethylsiloxy silicate ester are pretreated and then mixed with the water phase and the oil phase, the liquid foundation obtained through the method is fine and smooth and fit, the makeup effect durability is good in oily skin test, and the liquid foundation can preserve moisture and control oil.

Description

Technical Field

[0001] The invention relates to the technical field of cosmetics, and in particular to a skin-nourishing and long-lasting makeup liquid foundation suitable for oily skin. Background Art

[0002] As the refined lifestyle gradually gains popularity, more and more consumers choose to put on makeup. With the popularity of the "skin care concept", more people have put forward the demand for "makeup and effect integration". Liquid foundation is diverse and easy to use. It can effectively even out skin tone and cover facial blemishes. Especially for people with obvious skin blemishes, it can effectively improve their self-confidence and improve the quality of life. Therefore, it has become a necessity in the lives of many consumers. The pursuit of perfect makeup effect is the primary factor in consumer decision-making. The high sales volume and high interaction volume of the liquid foundation market are mainly concentrated on products with excellent concealer effect, and the demand for long-lasting and oil control is also more concentrated. In addition, for example, moisturizing and lasting makeup, oil control and concealer have also received a certain amount of attention. It can be seen that the market segmentation trend is obvious according to the different needs of consumers with different skin types. Different consumers have different needs for makeup due to different skin types. For example, consumers with dry skin usually pay more attention to moisturizing and nourishing functions, consumers with sensitive skin may be more interested in mild and non-irritating makeup products, and consumers with oily skin need more long-lasting makeup.

[0003] However, people with oily skin have the following problems. Oily skin usually has strong oil secretion and large pores. Currently, powders with different surface treatments or adding film-forming agents are often used to enhance the makeup-lasting effect. However, it is still easy to have problems such as powder sticking, floating powder, patchy makeup removal, stickiness, and even dry skin.

[0004] In response to the above problems, a Chinese patent with publication number CN109223597A discloses a long-lasting makeup liquid foundation, comprising a film-forming agent, wherein the film-forming agent comprises trimethylsiloxysilicate and sodium carboxymethylcellulose. The liquid foundation described in the invention becomes a "two-phase film-forming" technology by adding trimethylsiloxysilicate and sodium carboxymethylcellulose to compound the oil phase and the water phase, so that the film formed by the liquid foundation can tightly lock the toner, and has the dual effects of water resistance and oil resistance, thereby improving the anti-migration property of the liquid foundation. However, in actual use, it is found that for oily skin, since oily skin usually has vigorous oil secretion, even if the above-mentioned film-forming agent is used, since there is always an upper limit to the adsorption of oil, it is necessary to increase the film-forming agent to absorb more oil in order to keep the skin dry and enhance the long-lasting makeup effect, resulting in an awkward cycle of adding water when there is too much flour and adding flour when there is too much water.

[0005] Therefore, how to design a new liquid foundation so that it can have a good long-lasting makeup effect without adding a large amount of film-forming agent has become a technical problem that needs to be solved urgently by those skilled in the art. Summary of the invention

[0006] In view of the deficiencies in the prior art, the object of the present invention is to provide a skin-nourishing and long-lasting makeup liquid foundation for oily skin, which can have a good long-lasting makeup effect without adding a large amount of film-forming agents.

[0007] To achieve the aforementioned purpose of the invention, the technical solution adopted by the present invention includes: a skin care long-lasting makeup foundation for oily skin, comprising an aqueous phase and an oil phase, and also comprising bis-diglyceryl polyacyl adipate-2, trimethylsiloxysilicate, and surface-treated titanium dioxide and color powder. The bis-diglyceryl polyacyl adipate-2, surface-treated titanium dioxide and color powder and trimethylsiloxysilicate are mixed with the aqueous phase and the oil phase after pre-treatment.

[0008] There are many ways and methods of pretreatment. In the present technical solution, the pretreatment refers to first surface treating titanium dioxide and color powder, then mixing them with bis-diglycerol polyacyladipate-2 and trimethylsiloxysilicate to form a functional powder film, and finally mixing the functional powder film with water phase and oil phase to form liquid foundation.

[0009] Trimethylsiloxysilicate is an oil-soluble film-forming agent with strong hydrophobicity and strong adhesion to powders. It has good water resistance and friction resistance when used in foundation formulas and can effectively reduce color powder migration.

[0010] Bis-Diglyceryl Polyacyladipate-2 is an emollient and moisturizer in cosmetics. It has high water retention, excellent skin adhesion and smooth feel, and can increase the gloss of the product.

[0011] Preferably, the weight ratio of the bis-diglycerol polyacyl adipate-2, the surface-treated titanium dioxide, and the trimethylsiloxysilicate is 1:11-14:13-16.

[0012] The weight percentage of the bis-diglycerol polyacyl adipate-2 in the skin care long-lasting makeup foundation liquid is 0.5%-1.5%;

[0013] And / or, the weight percentage of titanium dioxide treated with the surface treatment agent in the skin care long-lasting makeup foundation liquid is 5%-15%;

[0014] And / or, the weight percentage of the trimethylsiloxysilicate in the skin care long-lasting makeup foundation is 0.5%-15%;

[0015] And / or, during the pretreatment process, the weight percentage of the cyclopentasiloxane in the skin care long-lasting makeup foundation is 4%.

[0016] Preferably, the surface-treated titanium dioxide has a rutile structure;

[0017] And / or, the particle size of the surface-treated titanium dioxide is 0.2 to 0.4 μm;

[0018] And / or, the haze of the surface-treated titanium dioxide is greater than 65%;

[0019] And / or, the total transmittance of the surface-treated titanium dioxide is greater than 70%.

[0020] Preferably, the surface-treated titanium dioxide and toner are treated with a surface treatment agent respectively, and the surface treatment agent is isopropyl titanium triisostearate.

[0021] Preferably, the toner is a combination of red iron oxide, yellow iron oxide and black iron oxide, the average particle size of the red iron oxide and the black iron oxide are both 0.2-0.4 μm, and the average particle size of the yellow iron oxide is 0.4-0.8 μm.

[0022] Titanium dioxide, red iron oxide, yellow iron oxide and black iron oxide treated with isopropyl titanium triisostearate are better combined with bis-diglyceryl polyacyladipate-2, forming hydrogen bonds through free OH-, and have strong water absorption and moisture locking capabilities under the intermolecular force.

[0023] In actual use, other pigments can be selected according to specific color requirements.

[0024] Preferably, the pretreatment method is hot grinding.

[0025] Preferably, the hot grinding method is to add bis-diglycerol polyacyl adipate-2, surface-treated titanium dioxide and color powder and part of cyclopentasiloxane into a container, stir and heat, grind with a three-roll mill, add trimethylsiloxysilicate, stir and fully dissolve, and the pretreatment is completed.

[0026] Preferably, the water phase comprises the following raw materials in weight percentage: 33% water, 5% polyol moisturizer, 1% magnesium sulfate, 4% ethanol, 0.6% preservative, and 0.16% flavor; the oil phase comprises the following raw materials in weight percentage: 5.5% emulsifier, 20.4% oil emollient, and 0.8% thickener.

[0027] Preferably, the polyol moisturizer is 1,3-butylene glycol, the preservative includes phenoxyethanol and ethylhexylglycerin, the emulsifier includes sorbitan sesquioleate, polyglyceryl-3 polydimethylsilyl hydroxyethyl polydimethylsiloxane and lauryl PEG-10 tri(trimethylsiloxy)silylethyl polydimethylsiloxane), the oil emollient includes isododecane, diisostearyl malate, cyclopentasiloxane and caprylyl polymethicone, and the thickener is disteardimonium hectorite.

[0028] Compared with the prior art, the advantages of the present invention include:

[0029] (1) Bis-diglycerol polyacyl adipate-2 is mixed with titanium dioxide with a specific surface treatment, a color powder, and a trimethylsiloxysilicate film-forming agent in a specific ratio range, and a functional powder film is first prepared by hot grinding, and then the functional powder film is mixed with a water phase and an oil phase to prepare a liquid foundation, so that the combination is better; in particular, after the titanium dioxide is surface treated, the particle size is 0.2 to 0.4 μm, the haze is greater than 65%, the total transmittance is greater than 70%, and the multiple coatings make the titanium dioxide have good lipophilicity, which makes it easier to adhere to the user's skin and not easy to fall off, and can increase its oil absorption and improve skin feel.

[0030] (2) Bis-diglycerol polyacyl adipate-2 is coated on the surface of the surface-treated titanium dioxide and color powder, and forms hydrogen bonds through free OH-. Under the intermolecular force, it has a strong ability to absorb and lock water. The functional powder film obtained by distributing the coated titanium dioxide and color powder in the trimethylsiloxysilicate film-forming agent has better skin adhesion.

[0031] (3) Bis-diglyceryl polyacyladipate-2 is pre-dispersed with titanium dioxide and color powder to weaken the van der Waals force between titanium dioxide and color powder molecules and form a soft oil film on the powder surface. This allows titanium dioxide and color powder to provide coverage while also having a certain moisturizing effect, making it less likely to dry out and stick to the powder.

[0032] (4) The functional powder film is coated on the outer layer of the oil-in-water emulsion to obtain a skin-nourishing and long-lasting makeup liquid foundation, which is suitable for oily skin, does not stick to the skin, does not cause patchy makeup, and can moisturize the skin for 8 hours, control oil for 24 hours, and last for 24 hours. DETAILED DESCRIPTION

[0033] In order to enable those skilled in the art to understand the characteristics and effects of the present application, the following is a general description and definition of the terms and expressions mentioned in the specification and claims. Unless otherwise specified, all technical and scientific terms used herein have the common meanings understood by those skilled in the art for the present application. In case of conflict, the definitions in this specification shall prevail.

[0034] The theories or mechanisms described and disclosed herein, whether correct or incorrect, should not limit the scope of the present application in any way, that is, the content of the present application can be implemented without being limited by any specific theory or mechanism.

[0035] As used herein, "this application" means "the present invention" or "the present disclosure".

[0036] The use of "one", "an", "a kind" or similar expressions to describe the components and technical features described in this application is merely for the convenience of expression and to provide a general meaning to the scope of this application. Therefore, such description should be understood to include one or at least one, and the singular also includes the plural, unless it is obvious that it refers to another meaning.

[0037] In this document, "or its combination" means "or any combination thereof", and "any one", "any one" means "any one", "any one" or "any one".

[0038] As used herein, the terms "comprises," "including," "having," "containing," or any other similar terms are open-ended transitional phrases that are intended to cover non-exclusive inclusions. For example, a composition or article containing multiple elements is not limited to the elements listed herein, but may also include other elements that are not explicitly listed but are generally inherent to the composition or article. In addition, unless otherwise expressly stated, the term "or" refers to an inclusive "or" rather than an exclusive "or." For example, any of the following situations satisfies the condition "A or B": A is true (or exists) and B is false (or does not exist), A is false (or does not exist) and B is true (or exists), and both A and B are true (or exist). In addition, in this article, the terms "comprising", "including", "having", and "containing" should be interpreted as being specifically disclosed and simultaneously covering closed conjunctions such as "consisting of", "consisting of", and "the remainder is", as well as conjunctions such as "consisting essentially of", "mainly consisting of", "mainly consisting of", "basically containing", "essentially consisting of", "essentially consisting of", and "essentially containing".

[0039] In this article, all features or conditions such as numerical values, quantities, contents and concentrations defined in the form of numerical ranges or percentage ranges are only for simplicity and convenience. Accordingly, the description of numerical ranges or percentage ranges should be deemed to have covered and specifically disclosed all possible sub-ranges and individual values ​​within the range (including integers and fractions), especially integer values. For example, the range description of "1.0 to 8.0" or "between 1.0 and 8.0" or "between 1.0 and 8.0" should be deemed to have specifically disclosed all sub-ranges such as 1.0 to 8.0, 1.0 to 7.0, 2.0 to 8.0, 2.0 to 6.0, 3.0 to 6.0, 4.0 to 8.0, 3.0 to 8.0, etc., and should be deemed to cover endpoint values, especially sub-ranges defined by integer values, and should be deemed to have specifically disclosed individual values ​​such as 1.0, 2.0, 3.0, 4.0, 5.0, 6.0, 7.0, 8.0, etc. Unless otherwise indicated, the foregoing method of interpretation applies to all contents of the entire application, regardless of whether the scope is broad or not.

[0040] If the quantity, concentration or other numerical value or parameter is expressed as a range, a preferred range (or a better range) or a series of upper and lower limits, it should be understood that all ranges consisting of any pair of the upper limit or preferred value (or a better value) of the range and the lower limit or preferred value (or a better value) of the range have been specifically disclosed herein, regardless of whether these ranges are disclosed separately. In addition, if a numerical range is mentioned herein, unless otherwise specified, the range should include its endpoints and all integers and fractions within the range.

[0041] In this document, numerical values ​​should be understood to have the accuracy of the number of significant digits of the numerical value, provided that the purpose of the invention can be achieved. For example, the number 40.0 should be understood to cover the range of 39.50 to 40.49.

[0042] In this article, for the use of Markush groups or optional terms to describe the features or examples of the present application, those skilled in the art should understand that all subgroups or any individual elements in the Markush group or option list can also be used to describe the present application. For example, if X is described as "selected from the group consisting of X1, X2 and X3", it also means that the claim that X is X1 and the claim that X is X1 and / or X2 and / or X3 have been fully described. Furthermore, for the use of Markush groups or optional terms to describe the features or examples of the present application, those skilled in the art should understand that any combination of subgroups or individual members of all elements in the Markush group or option list can also be used to describe the present application. Accordingly, for example, if X is described as "selected from the group consisting of X1, X2 and X3", and Y is described as "selected from the group consisting of Y1, Y2 and Y3", it means that the claim that X is X1 and / or X2 and / or X3 and Y is Y1 and / or Y2 and / or Y3 has been fully described.

[0043] Unless otherwise specified, in this application, a compound refers to a chemical substance formed by two or more elements connected by chemical bonds, including small molecule compounds and polymer compounds, but not limited thereto. The interpretation of a compound in this article is not limited to a single chemical substance, but can also be interpreted as the same type of chemical substances with the same composition or the same properties.

[0044] If not otherwise specified, in this application, polymer refers to the product formed by monomer through polymerization reaction, often including many polymer aggregates, each polymer is formed by many simple structural units repeatedly connected by covalent bonds, and monomer is a compound of synthetic polymer. Polymer can include homopolymer, copolymer, prepolymer, etc., and is not limited to this. Homopolymer refers to a polymer polymerized by a monomer. Copolymer includes random copolymer (structure is such as -AABABBBAAABBA-), alternating copolymer (structure is such as -ABABABAB-), graft copolymer (structure is such as -AA(A-BBBB)AA(A-BBBB)AAA-) and block copolymer (structure is such as -AAAAA-BBBBBB-AAAAA-) etc. Prepolymer refers to a polymer with a molecular weight between a monomer and a final polymer with a lower molecular weight, and the prepolymer contains reactive functional groups that can further undergo polymerization reaction to obtain a product with a higher molecular weight that is fully cross-linked or hardened. Polymer certainly includes oligomers, and is not limited to this. Oligomers, also known as low polymers, are polymers composed of 2 to 20 repeating units, usually 2 to 5 repeating units.

[0045] Unless otherwise specified, the "resin" in this application is a customary name for a synthetic polymer, which may include monomers, polymers thereof, combinations of monomers, combinations of polymers thereof, or combinations of monomers and polymers thereof, etc., and is not limited thereto.

[0046] If not otherwise specified, in the present application, modified products include products after modification of reactive functional groups of each resin, products after prepolymerization of each resin with other resins, products after crosslinking of each resin with other resins, products after copolymerization of each resin with other resins, and the like.

[0047] If not otherwise specified, the unsaturated bonds described in the present application refer to reactive unsaturated bonds, such as but not limited to unsaturated double bonds that can undergo cross-linking reactions with other functional groups, such as but not limited to unsaturated carbon-carbon double bonds that can undergo cross-linking reactions with other functional groups.

[0048] The unsaturated carbon-carbon double bonds described in the present application preferably include, but are not limited to, vinyl, vinylbenzyl, (meth)acryloyl, allyl or a combination thereof. Vinyl should be interpreted to include vinyl and vinylidene. (Meth)acryloyl should be interpreted to include acryloyl and methacryloyl.

[0049] Unless otherwise specified, the hydrocarbon groups described in this application include, but are not limited to, alkyl, alkenyl or alkynyl, and include their various isomers when interpreted. For example, a C1-C6 divalent hydrocarbon group is interpreted to include a C1-C6 divalent straight-chain hydrocarbon group, a C2-C6 divalent branched hydrocarbon group or a C3-C6 divalent cyclic hydrocarbon group. For another example, a propyl group should be interpreted to include n-propyl and isopropyl.

[0050] Unless otherwise specified, in this application, parts by weight represent relative parts by weight in a composition, which may be any weight unit, such as but not limited to kilograms, kilograms, grams, pounds, etc. For example, 100 parts by weight of polyphenylene ether resin may represent 100 kilograms of polyphenylene ether resin or 100 pounds of polyphenylene ether resin.

[0051] It should be understood that the features disclosed in the various embodiments herein may be arbitrarily combined to form the technical solution of the present application, as long as there is no contradiction in the combination of these features.

[0052] The present application will be described below with specific implementations and examples. It should be understood that these specific implementations and examples are merely illustrative and are not intended to limit the scope of the present application and its use.

[0053] Unless otherwise stated, the methods, reagents and conditions used in the following preparation examples, comparative examples and examples are conventional methods, reagents and conditions in the art.

[0054] The raw materials of each component below are purchased from the market, and their specific sources or characteristics are as follows:

[0055] Bis-diglyceryl polyacyl adipate-2: Cas No: 82249-33-0, purity: 99%;

[0056] Trimethylsiloxysilicate: Cas No: 24938-91-8, purity: 99%;

[0057] Cyclopentasiloxane: Cas No: 541-02-6, purity: 99%;

[0058] Phenoxyethanol: Cas No: 122-99-6, purity: 99%;

[0059] Ethylhexylglycerin: Cas No: 70445-33-9, purity: 99%;

[0060] Sorbitan sesquioleate: Cas No: 8007-43-0, purity: 99%;

[0061] Isododecane: Cas No: 93685-81-5, purity: 99%;

[0062] Diisostearyl malate: Cas No: 67763-18-2, purity: 99%;

[0063] Disteardimethylammonium hectorite: Cas No: 94891-31-3, purity: 99%;

[0064] Octyl polymethylsiloxane: Cas No: 17955-88-3, purity: 99%;

[0065] Polyglyceryl-3 polydimethylsilyl hydroxyethyl polydimethicone: Cas No: 102782-76-3, purity: 99%;

[0066] Titanium dioxide treated with isopropyl titanium triisostearate: CI77891, average particle size 0.2-0.4 μm, haze greater than 65%, total transmittance greater than 70%;

[0067] Red iron oxide treated with isopropyl titanium triisostearate: CI77491, average particle size is 0.2-0.4 μm;

[0068] Yellow iron oxide treated with isopropyl titanium triisostearate: CI77492, average particle size 0.4-0.8 μm;

[0069] Black iron oxide treated with isopropyl titanium triisostearate: CI77499, average particle size is 0.2-0.4 μm;

[0070] Lauryl PEG-10 tri(trimethylsiloxy)silylethyl polymethicone: Cas No: 1365118-01-9, purity: 99.99%;

[0071] Magnesium sulfate: Cas No: 7487-88-9, purity: 99%;

[0072] Ethanol: Cas No: 64-17-5, purity: ≥96%;

[0073] Flavor: Plant flavor, purchased from multiple manufacturers.

[0074] The preparation methods of the following embodiments are as follows:

[0075] (1) Add bis-diglycerol polyacyl adipate-2, titanium dioxide surface-treated with isopropyl titanium triisostearate, color powder, and cyclopentasiloxane into a container, stir and heat, grind with a three-roll mill, add trimethylsiloxysilicate, stir and fully dissolve, and obtain a functional powder film.

[0076] (2) Add emulsifier, octyl polymethicone, diisostearyl malate, cyclopentasiloxane, thickener and isododecane into a clean emulsifying pot in sequence, stir and disperse them evenly and perform appropriate homogenization.

[0077] (3) Add the raw materials of each component in the water phase into the water phase pot, stir and dissolve them evenly.

[0078] (4) Slowly add the material in the water phase pot to the emulsification pot at room temperature for full emulsification, start high-speed stirring and homogenization to obtain an oil-in-water emulsion.

[0079] (5) Add the pre-prepared functional powder film into the water-in-oil emulsion, start stirring and homogenizing, and prepare a skin-nourishing and long-lasting foundation liquid.

[0080] According to the formula in the following table, a total of 9 examples 1 to 9 were prepared, and the values ​​in the table are the weight percentages of each component in the whole:

[0081]

[0082]

[0083]

[0084] Taking Example 1 as an example, the preparation methods of each example in the above table are as follows:

[0085] (1) Add 0.9 g of bis-diglycerol polyacyl adipate-2, 10.34 g of titanium dioxide surface-treated with isopropyl titanium triisostearate, 0.17 g of black iron oxide surface-treated with isopropyl titanium triisostearate, 1.54 g of yellow iron oxide surface-treated with isopropyl titanium triisostearate, 0.25 g of red iron oxide surface-treated with isopropyl titanium triisostearate, and 4 g of cyclopentasiloxane into a container, stir and heat, grind with a three-roll mill, add 12 g of trimethylsiloxysilicate, stir and fully dissolve, and obtain a functional powder film.

[0086] (2) In a clean emulsifying pot, add 1g of sorbitan sesquioleate, 1g of polyglyceryl-3 polydimethylsiloxyethyl polydimethicone, 3.5g of lauryl PEG-10 tri(trimethylsiloxy)silylethyl polydimethicone, 2g of octyl polymethicone, 0.4g of diisostearyl malate, 12g of cyclopentasiloxane, thickener, and 6g of isododecane in sequence, stir well to disperse evenly and homogenize appropriately.

[0087] (3) Add the following ingredients into the water phase pot: 33.3 g water, 5 g 1,3-butylene glycol, 1 g magnesium sulfate, 0.5 g phenoxyethanol, 0.1 g ethylhexylglycerin, and 4 g ethanol, and stir to dissolve and disperse evenly.

[0088] (4) Slowly add the material in the water phase pot to the emulsification pot at room temperature for full emulsification, start high-speed stirring and homogenizing emulsification, and the stirring speed is 8000-10000 revolutions per minute (r / min) to obtain an oil-in-water emulsion.

[0089] (5) Add the pre-prepared functional powder film into the water-in-oil emulsion, start stirring and homogenizing, and prepare a skin-nourishing and long-lasting foundation liquid.

[0090] The experimental results of Examples 1-9 are as follows:

[0091] (1) Example 1, the water phase is added to the oil phase to prepare a water-in-oil emulsion. Then, a functional powder film prepared in advance in a specific mass ratio of 1:11-14:13-16 (bis-diglycerol polyacyl adipate-2: titanium dioxide surface-treated with isopropyl triisostearate titanium salt: trimethylsiloxysilicate film-forming agent) is added to obtain a liquid foundation that is delicate, fits well, has a good makeup effect and is durable on oily skin, and is both moisturizing and oil-controlling.

[0092] (2) Example 2, the preparation process is the same as Example 1, but trimethylsiloxysilicate is added, and the mass ratio of functional powder film is 1:11-14:16-18. The obtained liquid foundation is close to the skin, but it is too sticky and has a poor feel when used.

[0093] (3) Example 3, the preparation process is the same as Example 1, but bis-diglycerol polyacyl adipate-2 is added, and the mass ratio of functional powder film is 1:6-10:8-11. The prepared liquid foundation is close to the skin, but is more sticky than Example 1. The makeup effect on oily skin is duller than that in Example 1.

[0094] (4) Example 4, the preparation process is the same as Example 1, but the amount of bis-diglycerol polyacyladipate-2 is reduced, and the mass ratio of the functional powder film is 1:15-19:18-21. The prepared liquid foundation adheres to the skin, but the film formation is slower than that of Example 1. The moisturizing effect and makeup durability of oily skin tests are not as good as those of Example 1, and mottled makeup removal occurs.

[0095] (5) Example 5, adjusting the process: titanium dioxide and color powder, bis-diglyceryl polyacyl adipate-2, film-forming agent trimethylsiloxysilicate, cyclopentasiloxane, emulsifier, octyl polymethicone, diisostearyl malate, thickener, and isododecane are added to an emulsifying pot, stirred and dispersed evenly, and then an aqueous phase is added for emulsification. The fineness, skin-fitting property, and makeup-setting speed of the obtained liquid foundation are not as good as those of Example 1. In addition, the moisturizing effect, oil control effect, and makeup durability of oily skin tests are not as good as those of Example 1, and spots and floating powder appear.

[0096] (6) Example 6, the preparation process is the same as that of Example 1, but di-diglyceryl polyacyladipate-2 is replaced by dipentaerythritol hexahydroxystearate / hexastearate / hexarosinate. The resulting liquid foundation adheres to the skin, but its smearing ductility is worse than that of Example 1. The moisturizing effect and makeup durability of oily skin tests are not as good as those of Example 1, and powder sticking and spotting occur.

[0097] (7) Example 7, the preparation process is the same as Example 1, but trimethylsiloxysilicate is replaced by acrylic acid (ester) / polytrimethylsiloxane methacrylate copolymer. The prepared liquid foundation is close to the skin, but the makeup setting speed is not as fast as that of Example 1. The oil control effect and makeup durability of oily skin tests are obviously not as good as those of Example 1, and the makeup is easily dull and mottled and comes off.

[0098] (8) Example 8, adjusting the process: titanium dioxide, color powder, bis-diglyceryl polyacyl adipate-2 and cyclopentasiloxane are mixed to prepare titanium dioxide slurry, and then emulsifier, octyl polymethicone, diisostearyl malate, thickener, film-forming agent trimethylsiloxysilicate and isododecane are added, stirred and dispersed evenly, and then an aqueous phase is added for emulsification. The obtained liquid foundation is not as good as Example 1 in terms of skin adhesion and makeup setting speed. In addition, the oil control effect and makeup durability of oily skin tests are not as good as Example 1, and floating powder occurs.

[0099] (9) Example 9, adjusting the process: titanium dioxide, color powder, trimethylsiloxysilicate and cyclopentasiloxane are mixed to prepare titanium dioxide slurry, and then an emulsifier, octyl polymethicone, diisostearyl malate, a thickener, bis-diglyceryl polyacyl adipate-2 and isododecane are added, stirred and dispersed evenly, and then an aqueous phase is added for emulsification. The obtained liquid foundation is not as good as Example 1 in terms of skin adhesion and makeup setting speed. In addition, the moisturizing effect and makeup durability of oily skin tests are not as good as Example 1, and floating powder occurs.

[0100] The test data of Examples 1-9 are as follows:

[0101] 1. Self-assessment results of test subjects using the test product:

[0102]

[0103] It can be seen from the above table that in the evaluation of the overall effect, 7 evaluation items in Example 1 received 100% satisfaction, which is better than Examples 2 to 9.

[0104] 2. Based on the overall satisfaction of the self-assessment results, perform efficacy tests on Examples 1 to 4 and 6. The test environment is 21°C ± 1°C and 50% ± 10% RH. The efficacy test indicators are as follows:

[0105]

[0106]

[0107] The specific test data are as follows:

[0108] (1) Change rate of skin brightness L* value

[0109] Example 1 Example 2 Example 3 Example 4 Example 6 4h after use 2.09％ 2.32％ 2.02％ 1.96％ 1.69％ 8h after use 2.71％ 2.95％ 2.31％ 1.78％ 2.01％ 24h after use 1.03％ 1.64％ 0.94％ 0.86％ 0.54％

[0110] As can be seen from the above table, 4h, 8h and 24h after use, the skin of Example 2 is the whitest, followed by Example 1, Example 3, Example 4 and Example 6 in order from white to dark. However, Example 2 adds trimethylsiloxysilicate, which is too sticky and has a poor feel when used. Therefore, Example 1 is the best ratio after comprehensive comparison.

[0111] (2)ITA 。 Value change rate

[0112] Example 1 Example 2 Example 3 Example 4 Example 6 4h after use 17.56％ 18.61％ 18.52％ 16.35％ 15.85％ 8h after use 15.34％ 16.58％ 15.81％ 14.22％ 12.03％ 24h after use 9％ 11.64％ 8.66％ 7.61％ 6.96％

[0113] As can be seen from the above table, 4h, 8h and 24h after use, the skin color of Example 2 is the lightest, followed by Example 1. However, Example 2 adds trimethylsiloxysilicate, which is too sticky and has a poor feel when used. Therefore, Example 1 is the best ratio after comprehensive comparison.

[0114] (3) Hue deviation value change rate

[0115] Example 1 Example 2 Example 3 Example 4 Example 6 4h after use -20.10％ -21.03％ -21.24％ -19.01％ -18.72％ 8h after use -16.08％ -18.21％ -16.74％ -15.03％ -14.13％ 24h after use -11.06％ -12.35％ -9.87％ -9.25％ -8.26％

[0116] It can be seen from the above table that 24 hours after use, the skin color of Example 2 is more uniform, followed by Example 1. However, Example 2 adds trimethylsiloxysilicate, which is too sticky and has a poor feel when used. Therefore, Example 1 is the best ratio after comprehensive comparison.

[0117] Therefore, it can be seen from the above three tables that, in terms of makeup lasting effect, Example 2 is the best, followed by Example 1. However, Example 2 adds trimethylsiloxysilicate, which is too sticky and has a poor feel when used. Therefore, comprehensive comparison shows that Example 1 is the best ratio.

[0118] (4) Change rate of moisture content in the stratum corneum

[0119] Example 1 Example 2 Example 3 Example 4 Example 6 2h after use 52.97％ 49.38％ 55.27％ 45.46％ 44.01％ 4h after use 30.81％ 31.66％ 34.79％ 23.78％ 21.99％ 8h after use 15.71％ 17.01％ 18.23％ 10.68％ 8.36％

[0120] As can be seen from the above table, the moisture content of the skin stratum corneum of Examples 1 to 3 is relatively high 2h, 4h and 8h after use, but Example 2 adds trimethylsiloxysilicate, which is too sticky and has a poor feel when used; Example 3 is sticky, and the makeup effect of oily skin tests is more likely to be dull than that of Example 1.

[0121] (5) Change in the amount of sebum on the skin surface, unit: ug / cm 2

[0122] Example 1 Example 2 Example 3 Example 4 Example 6 4h after use 26.46 24.37 28.94 27.07 30.11 8h after use 55.91 56.88 59.01 56.35 61.80 24h after use 56.77 58.92 61.04 59.62 67.45

[0123] From the above table, it can be seen that the change in the amount of sebum on the skin surface of Example 1 is lower than that of Examples 2 to 4 at 8h and 24h after use, indicating that the change is small. Example 1 has the lowest amount of sebum on the skin surface and the best effect.

[0124] The present application also makes numerical adjustments to titanium dioxide and bis-diglycerol polyacyl adipate-2 treated with isopropyl titanium triisostearate on the basis of Example 1, and prepares Examples 10 to 13, a total of 4 Examples. The values ​​in the table are the weight percentages of each component in the whole:

[0125]

[0126]

[0127] The above-mentioned Examples 10 to 13 were also tested for makeup holding effect, oil control effect and moisturizing effect, and the results were not much different from those obtained in Example 1. The specific test data are as follows:

[0128] (6) Change rate of skin brightness L* value

[0129]

[0130]

[0131] As can be seen from the table above, 4h, 8h and 24h after use, the results of Examples 10 to 14 are not much different from the results obtained in Example 1.

[0132] (7)ITA 。 Value change rate

[0133] Example 10 Embodiment 11 Example 12 Example 13 4h after use 17.56％ 17.61％ 18.52％ 17.35％ 8h after use 15.34％ 15.58％ 15.81％ 15.22％ 24h after use 9％ 10.64％ 9.66％ 9.61％

[0134] As can be seen from the table above, 4h, 8h and 24h after use, the results of Examples 10 to 14 are not much different from the results obtained in Example 1.

[0135] (8) Hue deviation value change rate

[0136] Example 10 Embodiment 11 Example 12 Example 13 4h after use -20.10％ -20.93％ -21.24％ -19.01％ 8h after use -16.08％ -17.51％ -16.44％ -15.23％ 24h after use -11.06％ -12.66％ -10.87％ -11.25％

[0137] As can be seen from the table above, 4h, 8h and 24h after use, the results of Examples 10 to 14 are not much different from the results obtained in Example 1.

[0138] (9) Change rate of moisture content in the stratum corneum

[0139] Example 10 Embodiment 11 Example 12 Example 13 2h after use 52.97％ 51.28％ 53.27％ 54.64％ 4h after use 30.81％ 31.52％ 30.97％ 31.22％ 8h after use 15.71％ 16.01％ 16.23％ 15.59％

[0140] As can be seen from the table above, the results of Examples 10 to 14 are not much different from the results obtained in Example 1 2h, 4h and 8h after use.

[0141] (10) Change in the amount of sebum on the skin surface, unit: ug / cm 2

[0142] Example 10 Embodiment 11 Example 12 Example 13 4h after use 26.46 25.37 27.94 27.07 8h after use 55.91 56.88 56.01 56.35 24h after use 56.77 58.92 55.14 58.82

[0143] As can be seen from the table above, 4h, 8h and 24h after use, the results of Examples 10 to 14 are not much different from the results obtained in Example 1.

[0144] To sum up, the titanium dioxide: trimethylsiloxysilicate film-forming agent, which is surface-treated with bis-diglyceryl polyacyladipate-2: isopropyl titanium triisostearate, is pre-treated in a specific mass ratio of 1:11-14:13-16 and then mixed with the aqueous phase and the oil phase to finally prepare a liquid foundation that is light, close to the skin and not greasy. It has been tested on oily skin and has long-lasting moisturizing, oil control, and long-lasting makeup effect.

[0145] It should be understood that the above embodiments are only for illustrating the technical concept and features of the present invention, and their purpose is to enable people familiar with this technology to understand the content of the present invention and implement it accordingly. It cannot be determined that the specific implementation of the present invention is limited to these descriptions. For ordinary technicians in the technical field to which the present invention belongs, some simple deductions or substitutions can be made without departing from the concept of the present invention. All equivalent changes or modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.

Claims

1. A skin care and long-lasting makeup foundation for oily skin, comprising an aqueous phase and an oil phase, characterized in that: It also contains bis-diglycerol polyacyl adipate-2, trimethylsiloxysilicate, titanium dioxide and color powder after surface treatment. The bis-diglycerol polyacyl adipate-2, titanium dioxide and color powder after surface treatment and trimethylsiloxysilicate are mixed with the water phase and the oil phase after pretreatment.

2. The skin-nourishing and long-lasting makeup liquid foundation for oily skin according to claim 1, characterized in that: The weight ratio of the bis-diglycerol polyacyl adipate-2, the surface-treated titanium dioxide, and the trimethylsiloxysilicate is 1:11-14:13-16.

3. The skin-nourishing and long-lasting makeup liquid foundation for oily skin according to claim 2, characterized in that: The weight percentage of the bis-diglycerol polyacyl adipate-2 in the skin care long-lasting makeup foundation liquid is 0.5%-1.5%; And / or, the weight percentage of titanium dioxide treated with the surface treatment agent in the skin care long-lasting makeup foundation liquid is 5%-15%; And / or, the weight percentage of the trimethylsiloxysilicate in the skin care long-lasting makeup foundation is 0.5%-15%; And / or, during the pretreatment process, the weight percentage of the cyclopentasiloxane in the skin care long-lasting makeup foundation is 4%.

4. The skin-nourishing and long-lasting makeup liquid foundation for oily skin according to claim 1, characterized in that: The titanium dioxide after surface treatment is a rutile structure; And / or, the particle size of the surface-treated titanium dioxide is 0.2 to 0.4 μm; And / or, the haze of the surface-treated titanium dioxide is greater than 65%; And / or, the total transmittance of the surface-treated titanium dioxide is greater than 70%.

5. The skin-nourishing and long-lasting makeup liquid foundation for oily skin according to claim 1, characterized in that: The surface-treated titanium dioxide and color powder are treated with a surface treatment agent respectively, and the surface treatment agent is isopropyl titanium triisostearate.

6. The skin-nourishing and long-lasting makeup liquid foundation for oily skin according to claim 1, characterized in that: The toner is a combination of red iron oxide, yellow iron oxide and black iron oxide. The average particle sizes of the red iron oxide and the black iron oxide are both 0.2-0.4 μm, and the average particle size of the yellow iron oxide is 0.4-0.8 μm.

7. The skin-nourishing and long-lasting makeup liquid foundation for oily skin according to claim 1, characterized in that: The pretreatment method is hot grinding.

8. The skin-nourishing and long-lasting makeup liquid foundation for oily skin according to claim 1, characterized in that: The hot grinding method comprises adding bis-diglycerol polyacyl adipate-2, surface-treated titanium dioxide and color powder and part of cyclopentasiloxane into a container, stirring and heating, grinding with a three-roll mill, and then adding trimethylsiloxysilicate, stirring and fully dissolving, thereby completing the pretreatment.

9. A skin care long-lasting makeup liquid foundation for oily skin according to any one of claims 1 to 8, characterized in that: The water phase comprises the following raw materials in weight percentage: 33% water, 5% polyol moisturizer, 1% magnesium sulfate, 4% ethanol, and 0.6% preservative; the oil phase comprises the following raw materials in weight percentage: 5.5% emulsifier, 20.4% oil emollient, 0.8% thickener, and 0.16% flavor.

10. The skin-nourishing and long-lasting makeup liquid foundation for oily skin according to claim 9, characterized in that: The polyol moisturizer is 1,3-butylene glycol, the preservatives include phenoxyethanol and ethylhexylglycerin, the emulsifiers include sorbitan sesquioleate, polyglyceryl-3 polydimethylsilyl hydroxyethyl polydimethylsiloxane and lauryl PEG-10 tri(trimethylsiloxy)silylethyl polydimethylsiloxane), the oil emollients include isododecane, diisostearyl malate, cyclopentasiloxane and caprylyl polymethicone, and the thickener is disteardimonium hectorite.

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