Beautifying and sunscreen composition and cosmetic

Abstract

The invention relates to a face-beautifying sunscreen composition and cosmetics, the face-beautifying sunscreen composition comprises a first type of powder, a second type of powder and a film-forming agent, the first type of powder comprises a titanium dioxide mixture, zinc oxide and ferric oxide, and the second type of powder comprises spherical powder, flaky powder and hexagonal hollow tubular powder. The first type of powder and the second type of powder are powder made of different materials; the titanium dioxide mixture comprises spindle-shaped titanium dioxide with the average particle size of 8 nm to 60 nm, spherical titanium dioxide with the average particle size of 200 nm to 300 nm and rod-shaped titanium dioxide with the short diameter of 0.2 mu m to 0.5 mu m and the long diameter of 1 mu m to 5 mu m. The cosmetic prepared from the beautifying and sunscreen composition not only has excellent sunscreen and concealing effects, but also has the effects of beautifying and sunscreen products, can effectively reduce makeup steps, avoids the conditions of skin mud rubbing, acnes and the like caused by accumulation of sunscreen and beautifying products, and is good in makeup holding effect and excellent in makeup effect.

Description

Technical Field

[0001] The present invention relates to the technical field of cosmetics, in particular to a facial repair and sunscreen composition and cosmetics. Background Art

[0002] As an important part of cosmetics, facial products can cover facial blemishes, brighten and even out skin tone, and can intuitively give people a sense of beauty. However, existing facial products often have poor sun protection effects. At the same time, after being applied for a period of time, due to the influence of light and the skin secreting a large amount of oil, oleic acid and other factors, the powders such as color powder in the product will change color and have color differences, causing the skin to become dull and makeup to come off. Although existing sunscreen products can improve the sunscreen effect, the facial effect is poor. In order to achieve the effects of sun protection and facial repair at the same time, people usually use sunscreen products and facial repair products in combination, which not only increases the makeup steps, but the accumulation of sunscreen and facial repair products can also cause skin rubbing, acne and other conditions. Summary of the invention

[0003] Based on this, it is necessary to provide a facial repair sunscreen composition and cosmetics to address the above problems. The cosmetics prepared from the facial repair sunscreen composition not only have excellent sun protection and blemish concealing effects, but also have the effects of facial repair and sunscreen products, can effectively reduce the makeup steps, and avoid skin rubbing, acne, etc. caused by the accumulation of sunscreen and facial repair products, and have good long-lasting makeup effect and excellent makeup effect.

[0004] A facial sunscreen composition, comprising a first type of powder, a second type of powder and a film-forming agent, wherein the first type of powder comprises a titanium dioxide mixture, zinc oxide and iron oxide, and the second type of powder comprises spherical powder, flaky powder and hexagonal hollow tubular powder, and the first type of powder and the second type of powder are powders of different materials; Among them, in the facial care sunscreen composition, the mass fraction of the titanium dioxide mixture is 10%-60%, the mass fraction of the zinc oxide is 0.1%-22%, the mass fraction of the iron oxide is 0.01%-8%, the mass fraction of the spherical powder is 0.1%-23%, the mass fraction of the flaky powder is 0.1%-26%, the mass fraction of the hexagonal hollow tubular powder is 0.1%-12%, the mass fraction of the film-forming agent is 0.2%-24%, and the titanium dioxide mixture includes spindle-shaped titanium dioxide with an average particle size of 8nm-60nm, spherical titanium dioxide with an average particle size of 200nm-300nm, and rod-shaped titanium dioxide with a short diameter of 0.2μm-0.5μm and a long diameter of 1μm-5μm.

[0005] In one embodiment, the mass fraction of the spindle-shaped titanium dioxide in the titanium dioxide mixture is 35%-70%; And / or, the mass fraction of the spherical titanium dioxide in the titanium dioxide mixture is 20%-60%; And / or, the mass fraction of the rod-shaped titanium dioxide in the titanium dioxide mixture is 5%-20%.

[0006] In one embodiment, the average particle size of the spherical powder is 3 μm-20 μm; And / or, the spherical powder is selected from at least one of vinyl polydimethylsiloxane / polymethylsiloxane silsesquioxane cross-linked polymer, polymethylsilsesquioxane, silica, methyl methacrylate cross-linked polymer, and hexamethylene diisocyanate / trimethylol hexyl lactone cross-linked polymer.

[0007] In one embodiment, the average particle size of the flaky powder is 1 μm-20 μm, and the diameter-to-thickness ratio is 10-40; And / or, the flaky powder is selected from at least one of mica, synthetic fluorphlogopite, lauroyl lysine and perlite.

[0008] In one embodiment, the hexagonal hollow tubular powder is selected from at least one of nanoporous silica or nanoporous boron nitride, wherein the average pore size of the nanoporous silica is 1nm-10nm, and the specific surface area is greater than 1000m 2 / g.

[0009] In one embodiment, the zinc oxide is spherical, wherein the average particle size of the zinc oxide is 10nm-100nm.

[0010] In one embodiment, the average particle size of the iron oxide is 0.4 μm-5 μm; And / or, the iron oxide is selected from at least one of red iron oxide, yellow iron oxide and black iron oxide.

[0011] In one embodiment, the film former is selected from at least one of trimethylsiloxysilicate, acrylic acid (ester) / polydimethylsiloxane copolymer, polymethylsilsesquioxane, VP / hexadecene copolymer, and VP / eicosene copolymer.

[0012] A cosmetic comprising the above-mentioned facial care and sunscreen composition.

[0013] In one embodiment, the mass fraction of the facial care sunscreen composition in the cosmetic is 4%-40%.

[0014] In the face-beautifying sunscreen composition of the present invention, on the one hand, the synergistic effect of the spherical powder, flaky powder and hexagonal hollow tubular powder in a specific proportion can not only improve the dispersion uniformity of titanium dioxide, zinc oxide and iron oxide, and improve the sunscreen effect, but also increase the number of light refractions and the optical path to increase the contact opportunity between light and sunscreens such as titanium dioxide, effectively improve the utilization rate of sunscreens, and further improve the sunscreen effect. At the same time, under the action of the film-forming agent, it can cooperate with other components to form a uniform, dense and elastic face-beautifying sunscreen film on the skin, and can also increase the friction between the skin, so that the formed face-beautifying sunscreen film fits closely to the skin, slowing down the breakage of the film, and can keep the makeup intact for a long time, with a good makeup-lasting effect. In addition, the hollow tubular powder can absorb oleic acid secreted by the skin, etc., to keep the skin The skin is kept dry and non-greasy for a long time, avoiding dullness and makeup removal caused by oleic acid, and further improving the makeup-lasting effect; on the other hand, the compound of three different forms and specific sizes of titanium dioxide can not only synergistically resist visible light, ultraviolet light and infrared light to achieve protection against full-band light, but also can cooperate with zinc oxide and iron oxide to further improve the ability to resist visible light, ultraviolet light and infrared light, thereby improving the sun protection value and long-term protection stability against light, that is, good light stability and long-lasting sun protection; at the same time, it can effectively adjust the proportion of reflection, diffuse reflection and refraction of light in coordination with three different shapes of powders, so that the incident light presents a large amount of diffuse reflection, hides fine lines and blemishes on the skin surface through the soft focus effect, and makes the cosmetics present a higher haze, achieving the effect of "light-transmitting but not blemish-transmitting" with excellent makeup effect.

[0015] Therefore, the facial repair and sunscreen composition of the present invention, through the synergistic effect of a titanium dioxide mixture with specific components and zinc oxide, iron oxide, three powders of different shapes and a film-forming agent, makes the prepared cosmetics not only have excellent sun protection and blemish concealing effects, but also have the effects of facial repair and sunscreen products, can effectively reduce the makeup steps, avoid skin rubbing, acne and the like caused by the accumulation of sunscreen and facial repair products, and has good long-lasting makeup effect and excellent makeup effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 This is an electron microscope image of the spherical titanium dioxide in the present invention; Figure 2 is an electron microscope image of the rod-shaped titanium dioxide in the present invention; Figure 3 This is an electron microscope image of the spindle-shaped titanium dioxide in the present invention; Figure 4 is an electron microscope image of the vinyl polydimethylsiloxane / polymethylsiloxane silsesquioxane crosslinked polymer of the present invention; Figure 5 is an electron microscope image of polymethylsilsesquioxane in the present invention; Figure 6 This is an electron microscope image of the synthetic fluorphlogopite in the present invention; Figure 7 This is an electron microscope image of the nanoporous silica in the present invention. DETAILED DESCRIPTION

[0018] For ease of understanding of the present invention, the present invention will be described in more detail below. However, it should be understood that the present invention can be implemented in many different forms and is not limited to the embodiments or examples described herein. On the contrary, the purpose of providing these embodiments or examples is to make the understanding of the disclosure of the present invention more thorough and comprehensive.

[0019] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those generally understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific implementation methods or embodiments, and are not intended to limit the present invention. The optional scope of the term "and / or" used herein includes any one of two or more related listed items, and also includes any and all combinations of related listed items, and the combinations include any two related listed items, any more related listed items, or all related listed items.

[0020] The present invention provides a facial sunscreen composition, which comprises a first type of powder, a second type of powder and a film-forming agent, wherein the first type of powder comprises a titanium dioxide mixture, zinc oxide and iron oxide, and the second type of powder comprises spherical powder, flaky powder and hexagonal hollow tubular powder, and the first type of powder and the second type of powder are powders of different materials; Among them, in the facial care sunscreen composition, the mass fraction of the titanium dioxide mixture is 10%-60%, the mass fraction of the zinc oxide is 0.1%-22%, the mass fraction of the iron oxide is 0.01%-8%, the mass fraction of the spherical powder is 0.1%-23%, the mass fraction of the flaky powder is 0.1%-26%, the mass fraction of the hexagonal hollow tubular powder is 0.1%-12%, the mass fraction of the film-forming agent is 0.2%-24%, and the titanium dioxide mixture includes spindle-shaped titanium dioxide with an average particle size of 8nm-60nm, spherical titanium dioxide with an average particle size of 200nm-300nm, and rod-shaped titanium dioxide with a short diameter of 0.2μm-0.5μm and a long diameter of 1μm-5μm.

[0021] In the present invention, the synergistic effect of flaky powders, spherical powders and hexagonal hollow tubular powders in specific proportions is utilized. On the one hand, the dispersion uniformity of titanium dioxide, zinc oxide and iron oxide can be improved, thereby improving the sunscreen effect. On the other hand, because the "tube wall" of the hollow tubular powder can cause the incident light to produce multiple refractions, the number of refractions and the optical path of the light are increased, thereby increasing the contact opportunity between the light and sunscreens such as titanium dioxide, effectively improving the utilization rate of the sunscreen, and further improving the sunscreen effect.

[0022] At the same time, the above three powders of different shapes can cooperate with other components under the "entanglement" effect of the film-forming agent molecular chain, so that the cosmetics can form a uniform, dense and elastic face-reshaping sunscreen film on the skin. At the same time, it can also increase the friction between the skin, so that the formed face-reshaping sunscreen film fits closely to the skin, effectively improving the tightness brought by the film-forming agent, and slowing down the breakage of the film, so as to keep the makeup intact for a long time and have a good makeup-lasting effect; moreover, because the hexagonal hollow tubular powder can absorb oleic acid secreted by the skin, it can keep the skin dry and non-greasy for a long time, avoid dullness and makeup removal caused by oleic acid, etc., and further improve the makeup-lasting effect.

[0023] The applicant has found through research that spherical titanium dioxide has excellent reflection efficiency for visible light, rod-shaped titanium dioxide can reduce the damage of near-infrared rays to the skin, and spindle-shaped titanium dioxide has excellent protection against ultraviolet light. The structures of spherical titanium dioxide, rod-shaped titanium dioxide and spindle-shaped titanium dioxide are as follows: Figures 1 to 3As shown. When spherical titanium dioxide, rod-shaped titanium dioxide and spindle-shaped titanium dioxide of specific sizes are compounded, they can synergistically resist visible light, infrared light and ultraviolet light, and achieve protection against all-band light. At the same time, they can cooperate with zinc oxide and iron oxide to further improve the ability to resist visible light, ultraviolet light and infrared light, thereby improving the sun protection value and the long-term protection stability against light, that is, good light stability and long-lasting sun protection. Moreover, the above three different forms of titanium dioxide can effectively adjust the proportion of light reflection, diffuse reflection and refraction under the coordinated cooperation of three different shapes of powders, so that the incident light presents a large amount of diffuse reflection, hides fine lines and blemishes on the skin surface through the soft focus effect, and makes the cosmetics present a higher haze, achieving the effect of "light-transmitting but not blemish-transmitting", with excellent makeup effect.

[0024] In addition, the setting of a specific proportion of zinc oxide in the present invention can protect against ultraviolet light, and the setting of a specific proportion of iron oxide, on the one hand, can absorb visible light, and cooperate with spherical titanium dioxide to further enhance the effect of resisting visible light; on the other hand, it can effectively solve the problem that spherical titanium dioxide easily makes the skin look pale, modifying dull skin while avoiding the makeup becoming white due to exposure to high-light environments such as outdoors.

[0025] It can be understood that the face-repairing sunscreen composition of the present invention, through the synergistic effect of the titanium dioxide mixture with specific components and zinc oxide, iron oxide, three different shapes of powders and film-forming agents, can make the cosmetics prepared by it have good sunscreen effect and good light stability, can provide long-lasting sunscreen, and at the same time have a high haze value, can effectively cover skin fine lines and blemishes through a soft focus effect, and have excellent makeup effect and good long-lasting makeup effect. Therefore, the face-repairing sunscreen composition of the present invention can make the prepared cosmetics not only have excellent sunscreen and blemish-covering effects at the same time, but also have the effects of both face-repairing and sunscreen products, can effectively reduce the steps of makeup, avoid the skin rubbing mud, acne and the like caused by the accumulation of sunscreen and face-repairing products, and have good long-lasting makeup effect and excellent makeup effect.

[0026] It should be noted that the present invention does not particularly limit the shapes of the first type of powder and the second type of powder. The shapes of the first type of powder and the second type of powder may be the same or different.

[0027] Considering that too much spherical titanium dioxide can easily cause problems such as heavy makeup and fake white; although spindle-shaped titanium dioxide has excellent protection in the ultraviolet band, it has poor reflectivity in the visible light band and poor face-shaping effect; due to its rod-shaped shape, excessive addition of rod-shaped titanium dioxide will result in poor application performance. For this reason, in the titanium dioxide mixture of the present invention, the mass ratio of the spindle-shaped titanium dioxide, the spherical titanium dioxide and the rod-shaped titanium dioxide is 1: (0.2-2.5): (0.05-0.6).

[0028] Optionally, the mass fraction of the spindle-shaped titanium dioxide in the titanium dioxide mixture is 35%-70%; the mass fraction of the spherical titanium dioxide in the titanium dioxide mixture is 20%-60%; and the mass fraction of the rod-shaped titanium dioxide in the titanium dioxide mixture is 5%-20%. This arrangement can maximize the synergistic effect between the three and further improve the sun protection value.

[0029] Optionally, the average particle size of the spherical powder is 3 μm-20 μm, preferably 4 μm-10 μm. Such a configuration can better cooperate with the flake powder to further improve the dispersion uniformity of the titanium dioxide mixture, zinc oxide and iron oxide, thereby improving the sunscreen effect.

[0030] Further, the spherical powder is selected from at least one of vinyl polydimethylsiloxane / polymethylsiloxane silsesquioxane cross-linked polymer, polymethylsilsesquioxane, silica, methyl methacrylate cross-linked polymer, hexamethylene diisocyanate / trimethylol hexyl lactone cross-linked polymer, preferably vinyl polydimethylsiloxane / polymethylsiloxane silsesquioxane cross-linked polymer, polymethylsilsesquioxane, and the structures of the vinyl polydimethylsiloxane / polymethylsiloxane silsesquioxane cross-linked polymer and polymethylsilsesquioxane are as follows: Figure 4 and Figure 5 shown.

[0031] Optionally, the average particle size of the flaky powder is 1 μm-20 μm, and the diameter-to-thickness ratio is 10-40; such a configuration can better cooperate with the spherical powder, further improve the dispersion uniformity of the sunscreen and iron oxide, and improve the sunscreen effect.

[0032] Furthermore, the flaky powder is selected from at least one of mica, synthetic fluorphlogopite, lauroyl lysine, and perlite, preferably mica and synthetic fluorphlogopite, wherein the structure of synthetic fluorphlogopite is as follows: Figure 6 shown.

[0033] Optionally, the hexagonal hollow tubular powder is selected from at least one of nanoporous silica or nanoporous boron nitride, preferably nanoporous silica, wherein the structure of the nanoporous silica is as follows: Figure 7 As shown, the particle size of the primary particles of the nanoporous silica is 200nm-800nm, and the particle size of the secondary particles is 3μm-10μm.

[0034] Furthermore, the nanoporous silica has an average pore size of 1 nm to 10 nm and a specific surface area of ​​more than 1000 m 2 / g. Such a setting, on the one hand, can better cooperate with other powders, improve the dispersion uniformity of components such as sunscreens, and improve the sunscreen effect; on the other hand, it can better increase the number of refractions and optical path of light, further increase the contact opportunity between light and sunscreens such as titanium dioxide, improve the utilization rate of sunscreens, and better absorb oleic acid secreted by the skin, further improving the makeup lasting effect.

[0035] Optionally, the zinc oxide is spherical, wherein the average particle size of the zinc oxide is 10nm-100nm. This arrangement can further improve the sunscreen effect.

[0036] Optionally, the average particle size of the iron oxide is 0.4 μm-5 μm.

[0037] Furthermore, the iron oxide is selected from at least one of red iron oxide, yellow iron oxide and black iron oxide. This arrangement can better improve the sunscreen effect while better solving the problem of low tinting power of titanium dioxide and zinc oxide, better modifying dull skin and maintaining the integrity of makeup.

[0038] Optionally, the film former is selected from at least one of trimethylsiloxysilicate, acrylic acid (ester) / polydimethylsiloxane copolymer, polymethylsilsesquioxane, VP / hexadecene copolymer, and VP / eicosene copolymer. This arrangement allows the molecular chain of the film former to better "wrap" the powder, which is conducive to the cosmetics forming a dense, uniform, and elastic sunscreen film on the skin, and closely adheres to the skin, thereby better improving the sunscreen effect.

[0039] At the same time, the present invention also provides a cosmetic, comprising the above-mentioned face-shaping sunscreen composition. The cosmetic not only has excellent sunscreen and concealer effects, but also has the effects of face-shaping and sunscreen products, can effectively reduce the steps of makeup, avoid skin rubbing, acne and the like caused by the accumulation of sunscreen and face-shaping products, and has a good makeup lasting effect and excellent makeup effect.

[0040] Optionally, the mass fraction of the facial sunscreen composition in the cosmetic is 4%-40%. Such an arrangement can further improve the facial sunscreen effect and long-lasting makeup effect of the cosmetic.

[0041] It should be noted that the present invention has no special restrictions on the type of the cosmetics, such as emulsions, creams, gels, gel creams, foams and sprays. It is understandable that when the types of the cosmetics are different, the cosmetics also include additives, and the additives are selected from at least one of moisturizers, emulsifiers, chemical sunscreens, thickeners, moisturizers, preservatives, skin conditioners, fragrances and deionized water.

[0042] In addition, the present invention also provides a method for preparing a cosmetic, comprising the following steps: The facial care sunscreen composition is added to the oil phase solution for a first mixing, and then the water phase solution is added for a second mixing to obtain cosmetics.

[0043] In one embodiment, the first mixing is performed at a rotation speed of 500 rpm to 1000 rpm and for a time of 10 min to 20 min.

[0044] In one embodiment, the second mixing is performed by a homogenization process, wherein the homogenization speed is 3000 rpm-7000 rpm and the time is 3 min-6 min.

[0045] It should be noted that the formula of the oil phase solution and the water phase solution in the present invention can be selected according to the type of cosmetics to be prepared, and the temperature conditions in the first mixing and the second mixing steps can be adjusted according to whether the cosmetic formula system contains components that need to be dissolved under specific temperature conditions. It is understood that when the cosmetic formula system contains components that cannot be dissolved at room temperature, the first mixing and the second mixing steps can be performed under heating conditions, and the mixture obtained by the second mixing can be cooled accordingly to obtain the cosmetics.

[0046] The following specific examples will further illustrate the face-beautifying sunscreen composition and cosmetics. However, those skilled in the art will understand that the following examples are only used to illustrate the present invention and should not be considered to limit the scope of the present invention. If no specific conditions are specified in the examples, the conventional conditions or the conditions recommended by the manufacturer are followed. The reagents or instruments used without indicating the manufacturer are all conventional products that can be purchased commercially.

[0047] It should be noted that the raw materials involved in the face-beautifying sunscreen composition in all Example Table 1 and all Comparative Example Table 2 of the present invention are as follows: Among them, iron oxide: iron oxide red is spherical in shape, with an average particle size of 0.6μm; iron oxide yellow is rod-shaped, with an average particle size of 1μm; Zinc oxide: The average particle size of spherical zinc oxide 1 is 25 nm; the average particle size of spherical zinc oxide 2 is 67 nm; Flake powder: The average particle size of synthetic fluorphlogopite 1 is 6 μm, and the aspect ratio is 40; the average particle size of synthetic fluorphlogopite 2 is 12 μm, and the aspect ratio is 24; Spherical powder: A (i.e., vinyl polydimethylsiloxane / polymethylsiloxane silsesquioxane cross-linked polymer) has an average particle size of 5 nm; B (polymethylsilsesquioxane) has an average particle size of 7 nm; Hexagonal hollow tubular powder: The average pore size of nanoporous silica 1 is 4nm and the specific surface area is 1000m2 / g; the average pore size of nanoporous silica 2 is 2.7nm, and the specific surface area is 1000m 2 / g; Titanium dioxide mixture: the average particle size of spindle-shaped 1 (spindle-shaped titanium dioxide 1) is 15nm; the average particle size of spindle-shaped 2 (spindle-shaped titanium dioxide 2) is 60nm; the average particle size of spindle-shaped 3 (spindle-shaped titanium dioxide 3) is 45nm; the average particle size of sphere 1 (spherical titanium dioxide 1) is 250nm; the average particle size of sphere 2 (spherical titanium dioxide 2) is 300nm; the average particle size of sphere 3 (spherical titanium dioxide 3) is 275nm; the average long diameter of rod-shaped 1 (rod-shaped titanium dioxide 1) is 3μm; the average long diameter of rod-shaped 2 (rod-shaped titanium dioxide 2) is 5μm.

[0048] Example 1 A water phase solution, an oil phase solution and a skin-beautifying sunscreen composition of a specific formula are prepared, and the water phase raw materials are mixed evenly at room temperature to obtain a water phase solution; the oil phase raw materials are mixed evenly at room temperature to obtain an oil phase solution; at room temperature, the skin-beautifying sunscreen composition is mixed evenly and then added to the above-obtained oil phase solution and mixed and stirred evenly, wherein the stirring speed is 1000 rpm, and the stirring time is 25 minutes, and then added to the above-obtained water phase solution and mixed and homogenized, wherein the homogenization speed is 5000 rpm, and the homogenization time is 5 minutes, to obtain cosmetics, wherein the raw material formulas of all embodiments refer to Table 1, and the raw material formulas of all comparative examples refer to Table 2.

[0049] Table 1

[0050] Table 2

[0051] The cosmetics prepared in all the embodiments and comparative examples were tested, and the test indicators and methods were as follows: (1) Sun protection value test: Referring to the ISO24443:2021 in vitro sun protection test method, Labsphere's UV-2000S was used to test the in vitro SPF value and PA value. The test results are shown in Table 3.

[0052] (2) Photostability test: Referring to the ISO 24443:2021 in vitro sunscreen test method, Labsphere's UV-2000S was used to test the in vitro SPF value and then exposed to light, and the in vitro SPF value was measured again. The specific method is as follows: Use an analytical balance to weigh approximately 0.032 g on a Schonberg GmbH PMMA plate, apply it evenly with a finger cot, the application area is 5 cm × 5 cm, and test the in vitro SPF value after exposure to light for 6 hours at room temperature, and calculate the percentage of SPF values ​​before and after exposure = SPF value after exposure / SPF value before exposure. The specific results are shown in Table 3.

[0053] (3) Makeup lasting effect test: Use a colorimeter to measure the LAB value, and thus the makeup lasting effect. The specific method is as follows: Use an analytical balance to weigh 0.1g of the sample on the skin, and apply it evenly with a fingertip. The application area is 5cm×5cm. Record the values ​​of L, a, and b before and after 4 hours of sample application, and calculate △E, where The test results are shown in Table 3, where the Lab color model does not rely on light and pigments. It is a color model theory determined by the CIE (Commission International Eclairage) organization that includes all colors visible to the human eye. According to this theoretical analysis, the larger the △E, the greater the color difference between the two tests before and after, which means that the greater the difference before and after makeup, the worse the makeup durability.

[0054] (4) Determination of face-shaping effect and makeup effect: The test samples were evenly coated on transparent cardboard and the haze was measured at three points using a haze tester. The higher the haze, the better the soft focus effect, that is, the better the "light-transmitting but not flaw-transmitting" effect, and the more natural and excellent the makeup effect. The test results are shown in Table 3.

[0055] Table 3

[0056] It can be seen from the data in Table 3 that, compared with Example 1 and Examples 7 to 9, controlling the usage ratio of spindle-shaped titanium dioxide, spherical titanium dioxide and rod-shaped titanium dioxide can achieve a better synergistic effect among the three, thereby improving the sun protection value and light stability.

[0057] Compared with Example 1 and Comparative Examples 1 to 10, it can be seen that the facial sunscreen composition of the present invention, through the synergistic effect of a titanium dioxide mixture with specific components and zinc oxide, iron oxide, three powders of different shapes and a film-forming agent, can make the cosmetics prepared by the composition have good sunscreen effect, good photostability, and long-lasting sunscreen. At the same time, it has a high haze value and can effectively cover skin fine lines and blemishes through a soft focus effect. It has excellent makeup effect, good lasting makeup effect, and broad market prospects.

[0058] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0059] The above-mentioned embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A facial sunscreen composition, characterized in that: The facial sunscreen composition comprises a first type of powder, a second type of powder and a film-forming agent, wherein the first type of powder comprises a titanium dioxide mixture, zinc oxide and iron oxide, and the second type of powder comprises spherical powder, flaky powder and hexagonal hollow tubular powder, and the first type of powder and the second type of powder are powders of different materials; Among them, in the facial care sunscreen composition, the mass fraction of the titanium dioxide mixture is 10%-60%, the mass fraction of the zinc oxide is 0.1%-22%, the mass fraction of the iron oxide is 0.01%-8%, the mass fraction of the spherical powder is 0.1%-23%, the mass fraction of the flaky powder is 0.1%-26%, the mass fraction of the hexagonal hollow tubular powder is 0.1%-12%, the mass fraction of the film-forming agent is 0.2%-24%, and the titanium dioxide mixture includes spindle-shaped titanium dioxide with an average particle size of 8nm-60nm, spherical titanium dioxide with an average particle size of 200nm-300nm, and rod-shaped titanium dioxide with a short diameter of 0.2μm-0.5μm and a long diameter of 1μm-5μm.

2. The facial sunscreen composition according to claim 1, characterized in that: The mass fraction of the spindle-shaped titanium dioxide in the titanium dioxide mixture is 35%-70%; And / or, the mass fraction of the spherical titanium dioxide in the titanium dioxide mixture is 20%-60%; And / or, the mass fraction of the rod-shaped titanium dioxide in the titanium dioxide mixture is 5%-20%.

3. The facial sunscreen composition according to claim 1, characterized in that: The average particle size of the spherical powder is 3 μm-20 μm; And / or, the spherical powder is selected from at least one of vinyl polydimethylsiloxane / polymethylsiloxane silsesquioxane cross-linked polymer, polymethylsilsesquioxane, silica, methyl methacrylate cross-linked polymer, and hexamethylene diisocyanate / trimethylol hexyl lactone cross-linked polymer.

4. The facial sunscreen composition according to claim 1, characterized in that: The average particle size of the flaky powder is 1 μm-20 μm, and the diameter-to-thickness ratio is 10-40; And / or, the flaky powder is selected from at least one of mica, synthetic fluorphlogopite, lauroyl lysine and perlite.

5. The facial sunscreen composition according to claim 1, characterized in that: The hexagonal hollow tubular powder is selected from at least one of nanoporous silica or nanoporous boron nitride, wherein the average pore size of the nanoporous silica is 1nm-10nm, and the specific surface area is greater than 1000m 2 / g.

6. The facial sunscreen composition according to any one of claims 1 to 5, characterized in that: The zinc oxide is spherical, wherein the average particle size of the zinc oxide is 10nm-100nm.

7. The facial sunscreen composition according to any one of claims 1 to 5, characterized in that: The average particle size of the iron oxide is 0.4 μm-5 μm; And / or, the iron oxide is selected from at least one of red iron oxide, yellow iron oxide and black iron oxide.

8. The facial sunscreen composition according to any one of claims 1 to 5, characterized in that: The film former is selected from at least one of trimethylsiloxysilicate, acrylic acid (ester) / polydimethylsiloxane copolymer, polymethylsilsesquioxane, VP / hexadecene copolymer, and VP / eicosene copolymer.

9. A cosmetic, characterized in that: The cosmetic comprises the facial repair and sunscreen composition according to any one of claims 1 to 8.

10. The cosmetic according to claim 9, characterized in that: The mass fraction of the facial repair and sunscreen composition in the cosmetic is 4%-40%.

Images