CN113476319A

CN113476319A - Sunscreen repair composition and preparation method thereof

Info

Publication number: CN113476319A
Application number: CN202110321770.6A
Authority: CN
Inventors: 黄伟; 孙怀庆; 孙云起; 裴运林; 胡越
Original assignee: Guangzhou Zhenbang Daily Chemical Co ltd
Current assignee: Guangzhou Zhenbang Daily Chemical Co ltd
Priority date: 2021-03-25
Filing date: 2021-03-25
Publication date: 2021-10-08

Abstract

The invention relates to the field of cosmetics, in particular to a sunscreen repair composition and a preparation method thereof. The raw materials comprise phase A: 1-20% of first light filter, 1-20% of second light filter, 0.1-4% of polydimethylsiloxane, 7-10% of cyclopentadimethylsiloxane, 0.01-2% of vitamin derivative, 2-4% of saturated alkane, 2-5% of mineral micropowder and 1-4% of stabilizer; phase B: 0.1-10% of sodium calcium borosilicate, 0.2-30% of polysiloxane and 1-4% of diethylhexyl carbonate; and C phase: 0.5-15% of acrylic polymer; phase D: 1.5-4% of silicon elastomer, 5-8% of small molecular polyol, 0.1-0.3% of methylparaben, 0.1-0.5% of p-hydroxyacetophenone, 0.01-10% of plant extract, 0.01-10% of salicyloyl phytosphingosine, 0.01-10% of ceramide, 0.1-10% of cauliflower and water.

Description

Sunscreen repair composition and preparation method thereof

Technical Field

The invention relates to the field of cosmetics, in particular to a sunscreen repair composition and a preparation method thereof.

Background

Sunscreen agents refer to substances added to cosmetics by using the absorption, reflection or scattering action of light to protect the skin from damage caused by specific ultraviolet rays or to protect the product itself. With the accelerated industrial development process of the human society, the protection effect of the ozone layer tends to be reduced, and the intensity of ultraviolet rays reaching the earth surface in sunlight is higher and higher, so that the health of human beings is directly threatened. Ultraviolet radiation has a number of adverse effects on human health, primarily manifested as the possibility of causing severe effects both short-term and long-term, with short-term effects being primarily sunburn and long-term effects often being cumulative, manifested as skin erythema, photoaging, tissue destruction and skin cancer, among others. Therefore, how to reduce adverse effects of ultraviolet rays on human health by using sunscreen products as much as possible is one of the most popular topics in the cosmetic industry in recent years. Under such circumstances, sunscreen cosmetics have become one of cosmetics essential to people in daily life.

With the intensive research on skin damage caused by light, people are gradually aware that not only ultraviolet rays (UVA/UVB) can cause damage to the skin of people, but also high-energy blue light (HEV) and Infrared Rays (IR) can cause damage to the skin of people. The concept of the traditional sun-proof wave band is expanded, and the range is expanded, and the sun-proof object is protected from ultraviolet, blue light and infrared rays, and is protected from sunlight to sunlight, electronic products and artificial light sources. The expansion of the broad spectrum sunscreen range makes the protective performance of the existing sunscreen agents gradually unable to meet the requirements of people, people have more attention to the overall protection of skin besides the protection of UVA/UVB, and the requirements of the sunscreen agents on blue light prevention, oxidation resistance, pollution prevention and the like are higher and higher.

The light filtering agent is a main active ingredient in the sunscreen cream, and the organic light filtering agent has a good absorption effect on ultraviolet rays. However, the sunscreen cream directly contacts the skin, so that the organic light filtering agent has a large potential safety hazard, and the organic light filtering agent is found to inevitably permeate into the skin, has large irritation to the skin, is easy to cause skin allergy, and is a potential interference substance for endocrine dyscrasia. The inorganic light filter achieves the physical sun-screening effect mainly by reflecting and scattering ultraviolet radiation, has the advantages of high safety and good stability, but has the defects of easy pore blockage, influence on normal secretion of sebaceous glands and sweat glands and easy falling-off due to a thicker sun-screening layer deposited on the surface of skin, and has the defects of easy agglomeration, poor dispersibility, easy generation of free radicals while absorbing ultraviolet rays and the like, so the application of the inorganic light filter in the sun-screening agent is limited. The natural sunscreen agent is a sunscreen product which utilizes natural plants and effective components extracted from the natural plants as ultraviolet UVA/UVB absorbers, has good and lasting sunscreen performance and also has the functions of resisting bacteria and diminishing inflammation, but is not popularized in practical production and application. Based on the above, the problem to be solved in the art is to prepare a sunscreen repair composition which has the functions of effectively protecting the sun in a broad spectrum and caring the skin.

Disclosure of Invention

The invention provides the sunscreen repair composition, overcomes the defects of easy condensation, poor dispersibility and low SPF index of a physical sunscreen agent on the market, and the prepared sunscreen repair composition has the capability of efficiently protecting ultraviolet rays, can protect skin from being damaged by blue light, and has the effects of resisting inflammation and allergy and inhibiting erythema.

The invention provides a sunscreen repair composition, which comprises the following raw materials in percentage by mass:

phase A: 1-20% of first inorganic light filter, 1-20% of second inorganic light filter, 0.1-4% of cetyl PEG/PPG-10/1 polydimethylsiloxane, 7-10% of cyclopentadimethylsiloxane, 0.01-2% of vitamin derivative, 2-4% of C12-C18 saturated alkane, 2-5% of mineral micropowder and 1-4% of suspension stabilizer;

phase B: 0.1-10% of sodium calcium borosilicate, 0.2-30% of polysiloxane containing branched chains and 1-4% of diethylhexyl carbonate;

and C phase: 0.5 to 10 percent of anionic acrylic polymer;

phase D: 1.5-4% of silicon elastomer emulsion, 5-8% of small molecular polyol, 0.1-0.3% of methylparaben, 0.1-0.5% of p-hydroxyacetophenone, 0.01-10% of plant extract, 0.01-10% of salicyloyl phytosphingosine, 0.01-10% of ceramide composition, 0.1-10% of cauliflower, and the balance of water;

wherein the sum of the weight percentages of the phase A, the phase B, the phase C and the phase D is 100 percent.

In a preferred embodiment, the first inorganic light filter is ultrafine titanium dioxide and the second inorganic light filter is ultrafine zinc oxide.

In a preferred embodiment, the ultrafine titanium dioxide and the ultrafine zinc oxide are both surface-treated with triethoxycaprylylsilane.

In a preferred embodiment, the weight ratio of the superfine titanium dioxide subjected to the surface treatment by the triethoxyoctylsilane to the superfine zinc oxide subjected to the surface treatment by the triethoxyoctylsilane is (5-7): (6-10).

In a preferred embodiment, the calcium sodium borosilicate has an average particle size of 8 to 15 μm.

In a preferred embodiment, the polysiloxane containing branches is cetyl dimethicone and octyl methicone.

In a preferred embodiment, the weight ratio of cetyl dimethicone to octyl methicone is 1: (2-3).

In a preferred embodiment, the plant extract is at least one of aloe vera extract, anthocyanidin extract, calendula extract, seaweed extract.

The invention provides a preparation method of a sun-screening repair composition in a second aspect, which comprises the following specific preparation steps:

s1, weighing phase A raw materials according to a formula, uniformly dispersing a first inorganic light filter and a second inorganic light filter, adding cetyl PEG/PPG-10/1 polydimethylsiloxane, cyclopenta polydimethylsiloxane, a vitamin derivative, C12-C18 saturated alkane, mineral micropowder and a suspension thickening agent, and uniformly homogenizing to obtain a phase A mixture;

s2, weighing the phase B raw materials according to the formula ratio, and homogenizing uniformly to obtain a phase B mixture; a, B are mixed evenly to obtain a first mixture;

s3, weighing the D-phase raw material according to the formula amount, and homogenizing uniformly to obtain a D-phase mixture; uniformly mixing the mixture of the phase C and the phase D to obtain a mixture II;

s4, slowly adding the mixture II into the mixture I, stirring for 5-20min, and homogenizing for 1-3min to obtain a finished product.

In a preferred embodiment, the stirring speed in the step S4 is 200-1000r/min, and the homogenizing speed is 3000-4000 r/min.

Has the advantages that:

the sunscreen repair composition prepared by the invention can effectively absorb 290-400nm UV rays, can absorb 400-500nm blue light damage, and can provide broad-spectrum sunscreen protection for skin.

Detailed Description

The invention will be further understood by reference to the following detailed description of preferred embodiments of the invention and the examples included therein. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. To the extent that a definition of a particular term disclosed in the prior art is inconsistent with any definitions provided herein, the definition of the term provided herein controls.

As used herein, a feature that does not define a singular or plural form is also intended to include a plural form of the feature unless the context clearly indicates otherwise. It will be further understood that the term "prepared from …," as used herein, is synonymous with "comprising," including, "comprising," "having," "including," and/or "containing," when used in this specification means that the recited composition, step, method, article, or device is present, but does not preclude the presence or addition of one or more other compositions, steps, methods, articles, or devices. Furthermore, the use of "preferred," "preferably," "more preferred," etc., when describing embodiments of the present application, is meant to refer to embodiments of the invention that may provide certain benefits, under certain circumstances. However, other embodiments may be preferred, under the same or other circumstances. In addition, the recitation of one or more preferred embodiments does not imply that other embodiments are not useful, nor is it intended to exclude other embodiments from the scope of the invention. In addition, the starting materials for the present invention are commercially available unless otherwise specified.

In order to solve the above problems, the first aspect of the present invention provides a sunscreen repair composition, which comprises the following raw materials, by mass:

and C phase: anionic acrylic polymer 0.5-15%;

phase D: 1.5-4% of silicon elastomer emulsion, 5-8% of small molecular polyol, 0.1-0.3% of methylparaben, 0.1-0.5% of p-hydroxyacetophenone, 0.01-10% of plant extract, 0.01-10% of salicyloyl phytosphingosine, 0.01-10% of ceramide composition and 0.1-10% of cauliflower; supplementing the balance of water;

wherein, the sum of the weight percentages of the phase A, the phase B, the phase C and the phase D is 100 percent.

In some preferred embodiments, the raw materials of the sunscreen repair composition comprise, by mass:

phase A: 1-20% of first inorganic light filter, 1-20% of second inorganic light filter, 1-4% of cetyl PEG/PPG-10/1 polydimethylsiloxane, 7-10% of cyclopentadimethylsiloxane, 0.02-0.1% of vitamin derivative, 2-4% of C12-C18 saturated alkane, 2-5% of mineral micropowder and 1-4% of suspension thickening agent;

phase B: 1-10% of sodium calcium borosilicate, 0.2-30% of polysiloxane containing branched chains and 1-4% of diethylhexyl carbonate;

and C phase: 1-10% of an anionic acrylic polymer;

phase D: 1.5-4% of silicon elastomer emulsion, 5-8% of small molecular polyol, 0.1-0.3% of methylparaben, 0.1-0.3% of p-hydroxyacetophenone, 0.5-3% of plant extract, 0.01-10% of salicyloyl phytosphingosine, 0.01-10% of ceramide composition, 0.1-10% of cauliflower, and the balance of water;

Further preferably, the sunscreen repair composition comprises the following raw materials in percentage by mass:

phase A: 5-15% of first inorganic light filtering agent, 5-15% of second inorganic light filtering agent, 1-4% of cetyl PEG/PPG-10/1 polydimethylsiloxane, 7-10% of cyclopentadimethylsiloxane, 0.02-0.1% of vitamin derivative, 2-4% of C12-C18 saturated alkane, 2-5% of mineral micropowder and 1-4% of suspension thickening agent;

phase B: 2-5% of sodium calcium borosilicate, 1-20% of polysiloxane containing branched chains and 1-4% of diethylhexyl carbonate;

and C phase: 1-10% of an anionic acrylic polymer;

phase D: 1.5-4% of silicon elastomer emulsion, 5-8% of small molecular polyol, 0.1-0.3% of methylparaben, 0.1-0.3% of p-hydroxyacetophenone, 0.5-3% of plant extract, 0.5-5% of salicyloyl phytosphingosine, 0.5-5% of ceramide composition, 0.1-5% of cauliflower, and the balance of water;

In some preferred embodiments, the first inorganic filter is ultrafine titanium dioxide and the second inorganic filter is ultrafine zinc oxide. Further preferably, the ultrafine titanium dioxide and the ultrafine zinc oxide are commercially available, for example, from Sendzein technologies (China) Ltd.

Preferably, the superfine titanium dioxide and the superfine zinc oxide are both subjected to surface treatment by triethoxycaprylylsilane.

The ultrafine titanium dioxide and the ultrafine zinc oxide have a strong ability to absorb ultraviolet rays, and can protect the skin from ultraviolet rays by refraction and reflection. However, the ultrafine titanium dioxide powder and the ultrafine zinc oxide powder have small particle size, are easy to agglomerate and have poor dispersibility in the preparation and use processes, so that the sunscreen effect of the sunscreen emulsion is limited. The invention discovers that the SPF index of the sun-proof repair composition is obviously improved after the triethoxyoctylsilane is selected to carry out surface treatment on the titanium dioxide and the zinc oxide. The reason may be that triethoxyoctylsilane coats the surfaces of titanium dioxide and zinc oxide particles after surface treatment, so that the hydrophobic and oleophilic properties of the inorganic particles are improved, the inorganic filter is easier to be wetted in an emulsion oil phase, the compatibility of the titanium dioxide and zinc oxide after surface treatment with cetyl polydimethylsiloxane, octyl polymethylsiloxane and other substances is improved, the emulsion stability is improved, the inorganic filter can more fully play a role in absorbing and scattering ultraviolet rays, and the SPF index of a product is improved.

Ultrafine titanium dioxide surface treated with triethoxyoctylsilane and ultrafine zinc oxide surface treated with triethoxyoctylsilane are commercially available, for example from SENXIN essence technology (China) GmbH.

More preferably, the weight ratio of the superfine titanium dioxide subjected to the surface treatment by the triethoxyoctylsilane to the superfine zinc oxide is (5-7): (6-10).

The present invention has unexpectedly found that the above-described weight ratio of titanium dioxide to zinc oxide is (5-7): (6-10), in particular 6: when 8, the SPF index of the sunscreen repair composition is improved, and the anti-inflammatory and bactericidal effects of the sunscreen repair composition are also improved. The reason may be that the weight ratio of titanium dioxide and zinc oxide in the sunscreen repair composition is (5-7): (6-10), it can promote the generation of strong oxidizing atomic oxygen and hydroxyl radicals, and inhibit the activity of proteins in viruses or germs, thereby acting synergistically with the substances such as cauliflower, and having antibacterial and anti-inflammatory repairing effects on skin.

In some preferred embodiments, the sodium calcium borosilicate has an average particle size of 8 to 15 μm.

In some preferred embodiments, the sodium calcium borosilicate has an average particle size of 9 to 13 μm. Sodium calcium borosilicate having an average particle size of 9 to 13 μm is commercially available, for example, from Sendzein dye technology (China) Ltd.

The invention finds that when the sodium calcium borosilicate is added into the sun-proof repair composition, the SPF index of the product is further improved, and when the average particle size of the sodium calcium borosilicate is 9-13 mu m, the improvement effect is optimal. The sodium calcium borosilicate with the average particle size of 9-13 mu m is suspected to generate a synergistic effect with the surface-treated zinc oxide and silicon dioxide, a large-and-small-sphere dispersion structure is formed in the emulsion, a four-way and eight-way light scattering passage is formed, and the light protection effect of the sunscreen repair composition is improved.

Titanium dioxide has strong capability of shielding ultraviolet rays, but the titanium dioxide is usually added into cosmetics to cause the disadvantages of high whiteness and influence on makeup. The invention unexpectedly discovers that when the addition amount of the sodium calcium borosilicate is 1-10%, blue light can be effectively shielded, and the prepared sunscreen repair composition can bring soft-focus effect of weakening fine lines and flaws to skin. The reason is probably that the sodium calcium borosilicate and substances such as the inorganic light filtering agent, cetyl polydimethylsiloxane, octyl polymethylsiloxane and the like have synergistic effect, and a layer of protective barrier can be formed on the surface of the skin, so that pathogens in the environment are inhibited from infecting the epidermis of the skin, the water locking and nutrient substance absorbing capabilities of the epidermis of the skin are improved, and the effect of caring the skin is achieved. When the addition amount of the sodium calcium borosilicate is 1% -10%, the protective barrier has the best bonding effect with the skin, inhibits cell division of cell spaces of a matrix layer and a granular layer under blue light irradiation, and improves a loose network on the surface layer of the skin. More preferably, the addition amount of the calcium sodium borosilicate is 3 to 6 percent

In some preferred embodiments, the polysiloxane containing branches is cetyl dimethicone and octyl methicone. Cetyl dimethicone is commercially available, for example, from specialty chemical, inc, under the model ABIL WAX 9801; octyl methicone is commercially available, for example, from Michigan high materials, Inc. under the model SILSOFT 034.

Further preferably, the weight ratio of the cetyl polydimethylsiloxane to the octyl methicone is 1: (2-3).

The invention finds that when the polysiloxane containing the branched chain is combined action of cetyl polydimethylsiloxane and octyl methicone, the SPF index of the product is further improved, and the sunscreen repair composition is endowed with a more refreshing and exquisite texture. The reasons may be that cetyl polydimethylsiloxane and octyl methicone have synergistic effect, have excellent dispersion effect on the inorganic light filtering agent, can enable the sun-screening repair composition to spread more uniformly when being applied, inhibit the coagulation and agglomeration of the inorganic light filtering agent, improve the SPF index of the product, enable the emulsion to be fresh and easy to push away, and improve the application experience. Further preferably, the mass ratio of cetyl polydimethylsiloxane to octyl polydimethylsiloxane is 1: (2-3).

In some preferred embodiments, the raw materials of the sunscreen repair composition further comprise 2-8% barium sulfate; the invention discovers that the addition of the barium sulfate powder obviously optimizes the product effect and provides natural uniform skin color; and provides softer and smoother skin feel, blurs skin color spots and flaws, and can reduce visual defects and simultaneously keep durable, transparent and whitening.

In some preferred embodiments, the vitamin derivative is a vitamin E derivative.

Further preferably, the vitamin E derivative is tocopherol acetate.

In some preferred embodiments, the plant extract is at least one of aloe vera extract, anthocyanidin extract, calendula extract, seaweed extract.

Still more preferably, the plant extract is a seaweed extract. The seaweed extract may be commercially available, for example from Sendzein pigment technology (China) Inc.

The invention discovers that when the plant extract is the seaweed extract, the calming and inflammation diminishing effects on skin are obviously improved. The reason may be that the seaweed extract contains fucoidan sulfate which can be compatible with cetyl polydimethylsiloxane, octyl polymethylsiloxane and other substances, active ingredients in the emulsion are effectively combined with skin keratin to form a durable and stable protective barrier, so that the contact between exogenous substances and the skin is blocked/reduced, the capability of the skin for resisting external stimulation is enhanced, the protective capability of the sunscreen repair composition on the skin is improved, the skin is further nourished, and the problems of skin allergy, inflammation, erythema and the like are effectively improved. More preferably, the addition amount of the seaweed extract is 1.5% -3%.

With aging, the physiological process of the skin becomes slow, and aging occurs. The lipid in stratum corneum is reduced after the surface skin is aged, the epidermis of the aged skin is thinned, the barrier function of the skin is reduced, the moisturizing factors in the skin are reduced, and the skin is dry and fragile. A special basement membrane exists between the epidermis and the dermis, controlling the supply of nutrients from the dermal blood vessels to the avascular epidermis. With the aging process, the basement membrane structure deteriorates, the supply of extracellular matrix supporting the skin structure decreases, the skin tissue resistance decreases, the skin firmness decreases, elasticity is lost, wrinkles gradually form, and the skin relaxes.

In some preferred embodiments, the raw material of the sunscreen repair composition comprises 0.5-3% by mass of salicylphytosphingosine. The salicyloyl phytosphingosine contains unique bionic skin sphingosine derivatives, has the effect of remodeling the connection between dermis and epidermis, induces the dermal papilla layer to generate collagen, achieves the effect of smoothing the skin, and effectively lightens wrinkles generated in the natural aging and photoinduced aging processes of the skin. The salicyloylphytosphingosine may be commercially available, for example, from specialty chemical, Inc.

In some preferred embodiments, the raw material of the sunscreen repair composition comprises 0.1-1% by mass of the cauliflower. The anti-inflammatory and anti-allergic effects of the sunscreen repair composition are improved due to the addition of the cauliflower, the reason is that the cauliflower is rich in ascorbic acid and dithiol thione components, the effective active ingredients directly act on skin cells, the anti-oxidation, anti-inflammatory and anti-allergic capabilities of the skin are improved, the expansion disorder of skin capillaries is relieved, and the generation of skin erythema is further inhibited.

In some preferred embodiments, the C12-C18 saturated alkane is isohexadecane, which has a CAS number of 4390-04-9.

In some preferred embodiments, the fine mineral powder comprises at least one of silica, talc, celestite, and kaolinite.

More preferably, the mineral micropowder is silica; the silica may be commercially available, for example from Sendzein technologies (China) Inc.

In some preferred embodiments, the suspension thickener is a mixture of ethylhexyl palmitate, quaternary ammonium salt-18 bentonite, polyglycerol-3 oleate and propylene carbonate.

The silicone elastomer emulsion is Velvesil E-Gel PMF emulsion, which is commercially available, for example, from Mylar high-tech materials, Inc.

In some preferred embodiments, the anionic acrylic polymer is an acrylic acid/beheneth-25 methacrylate copolymer, which may be commercially available, such as the solvay group.

The invention discovers that when an anionic acrylic polymer, in particular an acrylic acid (ester)/behenyl alcohol polyether-25 methacrylate copolymer is added into the sun-proof repair composition, the uniformity and fineness of a dispersed phase in a system can be optimized, so that a light filter is uniformly distributed in an oil-water mixed system; meanwhile, the anionic acrylic polymer can also inhibit the intermolecular unstable agglomeration for a long time, keep the emulsion to keep good droplet uniformity under large humidity fluctuation, improve the stable skin-friendly effect of the sunscreen repair composition, and more fully play the roles of sunscreen protection and skin care.

Further preferably, the anionic acrylic polymer is subjected to neutralization treatment, and the neutralization treatment is conventional technical means in the field and is not particularly limited; for example:

the anionic acrylic polymer is dispersed with water, and then neutralized by adding a pH adjuster to adjust the pH to 6.0 to 7.0.

In some preferred embodiments, the weight ratio of the anionic acrylic polymer to water is 1: (8-15).

In some preferred embodiments, the pH adjusting agent comprises arginine and/or triethanolamine.

In some preferred embodiments, the small molecule polyol comprises at least one of propylene glycol, 1, 2-hexanediol, and glycerol.

Further preferably, the small molecular weight polyol is propylene glycol and 1, 2-hexanediol, and the weight ratio of the propylene glycol to the 1, 2-hexanediol is (10-15): 1.

According to the invention, when the sunscreen repair composition is prepared according to the formula, A, B phases are uniformly mixed, and then the C phase is added for mixing, so that the prepared finished product has the best SPF index, blue light absorption, anti-inflammatory and anti-allergy effects. The reason may be that A, B phase is mixed first to fully exert the dispersion effect of polysiloxane containing branched chain on the inorganic light filtering agent, then when C, D phase is added, the compatibility of functional substances such as seaweed extract, salicyloyl phytosphingosine, cauliflower and the like in the system is improved, the binding capacity of the emulsion and the skin can be improved to the greatest extent, the sunscreen repair composition forms a durable and stable protective layer on the surface of the skin, and all components play a synergistic role to improve the sunscreen and repair performance of the sunscreen repair composition.

In some preferred embodiments, the stirring speed in the S4 step is 200-1000r/min, and the homogenizing speed is 3000-4000 r/min. Stirring at the speed of 200-.

More preferably, the stirring speed in the step S4 is 400-700r/min, and the homogenizing speed is 3200-3800 r/min.

Examples

Example 1.

The embodiment provides a sunscreen repair composition, which comprises the following raw materials in percentage by mass:

phase A: 6% of first inorganic light filter, 8% of second inorganic light filter, 3% of cetyl PEG/PPG-10/1 polydimethylsiloxane, 9% of cyclopentasiloxane, 0.05% of vitamin E derivative, 3% of C12-C18 saturated alkane, 3% of mineral micropowder and 3% of suspension thickening agent;

phase B: 4% of sodium calcium borosilicate, 12.5% of polysiloxane containing branched chains and 3% of diethylhexyl carbonate;

and C phase: anionic acrylic polymer 7.2%;

phase D: 3% of silicon elastomer emulsion, 6.5% of small molecular polyol, 0.2% of methylparaben, 0.15% of p-hydroxyacetophenone, 2% of plant extract, 2% of salicyloyl phytosphingosine, 2% of ceramide composition, 0.2% of cauliflower and the balance of water;

The first inorganic light filtering agent is superfine titanium dioxide, and the second inorganic light filtering agent is superfine zinc oxide.

The ultrafine titanium dioxide and the ultrafine zinc oxide are subjected to surface treatment by triethoxycaprylylsilane and are purchased from Tongxianjing pigment science and technology (China) Co.

The sodium calcium borosilicate was 10 μm in average particle size and purchased from Samson fragrance pigment science and technology (China) Co.

The polysiloxane containing the branched chain is cetyl polydimethylsiloxane and octyl methicone.

The weight ratio of the cetyl polydimethylsiloxane to the octyl methicone is 3.5: 9. cetyl dimethicone was purchased from win-win specialty chemical, ltd, model ABIL WAX 9801; octyl methicone was purchased from Mitigo high materials, Inc. under the model SILSOFT 034.

The plant extract is a seaweed extract purchased from Saint Georgi essence pigment science and technology (China) Co.

The C12-C18 saturated alkane is isohexadecane, and the CAS number of the isohexadecane is 4390-04-9.

The mineral micropowder is silica, and is purchased from SENSON essence pigment science and technology (China) GmbH.

The suspension thickener is a mixture of ethylhexyl palmitate, quaternary ammonium salt-18 bentonite, polyglycerol-3 oleate and propylene carbonate. A mixture of ethylhexyl palmitate, quaternary ammonium salt-18 bentonite, polyglycerol-3 oleate and propylene carbonate was purchased from Enquise technologies Inc. under model number EnquGel 705.

The silicone elastomer emulsion was Velvesil E-Gel PMF emulsion, purchased from Mitigo high-tech materials, Inc.

The micromolecular polyalcohol is propylene glycol and 1, 2-hexanediol, and the weight ratio of the propylene glycol to the 1, 2-hexanediol is 12: 1.

the salicyloyl Phytosphingosine is purchased from the self-winning specialty chemical Co., Ltd, and the model is phytophingosine SLC.

The ceramide composition is purchased from special chemical company Limited, and has the model of sk-influx.

The vitamin E derivative is tocopherol acetate, and the CAS number is 7695-91-2.

The anionic acrylic polymer is an acrylic acid (ester)/behenyl alcohol polyether-25 methacrylate copolymer, and the acrylic acid (ester)/behenyl alcohol polyether-25 methacrylate copolymer is purchased from the Solvay group. The acrylic acid (ester)/behenyl alcohol polyether-25 methacrylate copolymer is subjected to neutralization treatment, and specifically comprises the following steps: the anionic acrylic polymer was dispersed with water, then neutralized by adding triethanolamine, and the pH was adjusted to pH 6.5.

The weight ratio of the acrylic acid (ester)/behenyl alcohol polyether-25 methacrylate copolymer to water is 1: 12.

the preparation steps of the sunscreen repair composition comprise:

s1, weighing phase A raw materials according to a formula, uniformly dispersing an inorganic light filter, adding cetyl PEG/PPG-10/1 polydimethylsiloxane, cyclopenta polydimethylsiloxane, a vitamin E derivative, C12-C18 saturated alkane, mineral micropowder and a suspension thickening agent, and uniformly homogenizing to obtain a phase A mixture;

and S4, slowly adding the mixture II into the mixture I, stirring for 10min, and homogenizing for 3min to obtain a finished product.

The stirring speed in the step S4 is 450r/min, and the homogenizing speed is 3500 r/min.

Example 2.

The specific implementation mode of the sun-proof repair composition is the same as that of example 1. The method is characterized by comprising the following raw materials in percentage by mass:

phase A: 7% of first inorganic light filter, 10% of second inorganic light filter, 2% of cetyl PEG/PPG-10/1 polydimethylsiloxane, 8% of cyclopentasiloxane, 0.1% of vitamin E derivative, 3% of C12-C18 saturated alkane, 3% of mineral micropowder and 3% of suspension thickening agent;

phase B: 6% of sodium calcium borosilicate, 15% of polysiloxane containing branched chains and 3% of diethylhexyl carbonate;

and C phase: anionic acrylic polymer 4.8%;

phase D: 3% of silicon elastomer emulsion, 6.5% of small molecular polyol, 0.2% of methylparaben, 0.15% of p-hydroxyacetophenone, 2% of plant extract, 7% of salicyloyl phytosphingosine, 6% of ceramide composition, 1% of cauliflower and the balance of water;

Example 3.

phase A: 5% of first inorganic light filter, 10% of second inorganic light filter, 3% of cetyl PEG/PPG-10/1 polydimethylsiloxane, 7% of cyclopentasiloxane, 0.05% of vitamin E derivative, 3% of C12-C18 saturated alkane, 3% of mineral micropowder and 3% of suspension thickening agent;

phase B: 10% of sodium calcium borosilicate, 20% of polysiloxane containing branched chains and 3% of diethylhexyl carbonate;

and C phase: anionic acrylic polymer 9.5%;

phase D: 3% of silicon elastomer emulsion, 6.5% of small molecular polyol, 0.2% of methylparaben, 0.15% of p-hydroxyacetophenone, 2% of plant extract, 4% of salicyloyl phytosphingosine, 3% of ceramide composition, 3% of cauliflower and the balance of water;

Example 4.

phase A: 6% of first inorganic light filter, 8% of second inorganic light filter, 3% of cetyl PEG/PPG-10/1 polydimethylsiloxane, 9% of cyclopentasiloxane, 0.05% of vitamin E derivative, 3% of C12-C18 saturated alkane, 3% of mineral micropowder, 3% of suspension thickening agent and 5% of barium sulfate;

and C phase: anionic acrylic polymer 7.2%;

The barium sulfate was purchased from Guangzhou, Nuo products trade, Inc. under the product name D BAS-H.

Comparative example 1.

The specific implementation mode of the sun-proof repair composition is the same as that of example 1. The difference is that the raw material is not added with sodium calcium borosilicate.

Comparative example 2.

The specific implementation mode of the sun-proof repair composition is the same as that of example 1. The difference is that the polysiloxane containing branched chains is cetyl polydimethylsiloxane, and the added mass percentage is 3.5%.

Comparative example 3.

The specific implementation mode of the sun-proof repair composition is the same as that of example 1. The difference is that the polysiloxane containing branched chains is octyl polymethylsiloxane, and the added mass percentage is 9%.

Comparative example 4.

The specific implementation mode of the sun-proof repair composition is the same as that of example 1. The difference is that the raw material is not added with salicyloyl phytosphingosine.

Comparative example 5.

The specific implementation mode of the sun-proof repair composition is the same as that of example 1. The difference is that the ceramide composition is not added in the raw materials.

Comparative example 6.

The specific implementation mode of the sun-proof repair composition is the same as that of example 1. The difference is that no coconut essence is added in the raw material.

Comparative example 7.

The specific implementation mode of the sun-proof repair composition is the same as that of example 1. The difference is that the superfine titanium dioxide and the superfine zinc oxide are not subjected to surface treatment by triethoxycaprylylsilane.

Comparative example 8.

The specific implementation mode of the sun-proof repair composition is the same as that of example 1. The difference is that the weight ratio of the superfine titanium dioxide and the superfine zinc oxide which are subjected to the surface treatment by the triethoxyoctylsilane is 3: 1.

comparative example 9.

The specific implementation mode of the sun-proof repair composition is the same as that of example 1. The difference is that the addition amount of the calcium sodium borosilicate is 14%.

Comparative example 10.

The specific implementation mode of the sun-proof repair composition is the same as that of example 1. The difference is that the mass ratio of the cetyl polydimethylsiloxane to the octyl methicone is 1: 1.

comparative example 11.

The specific implementation mode of the sun-proof repair composition is the same as that of example 1. The difference is that no plant extract is added.

Comparative example 12.

The specific implementation mode of the sun-proof repair composition is the same as that of example 1. The difference is that the plant extract is aloe vera extract, purchased from sanyuan tiandoma biologies limited.

Comparative example 13.

The specific implementation mode of the sun-proof repair composition is the same as that of example 1. The difference lies in that the preparation steps of the sunscreen repair composition comprise:

the preparation steps of the sunscreen repair composition comprise:

The stirring speed in the step S4 is 150r/min, and the homogenizing speed is 1000 r/min.

Performance test method

SPF index:

the SPF index of the test sample was determined using a Labsphere UV-2000S cosmetic Sun protection index tester.

Shielding blue light:

the samples were applied topically to the reconstituted epidermis using an in vitro assay and exposed to 40J/cm²The sample is irradiated for 24h in blue light (427nm), and the generation of epidermal oxidized substances is evaluated by using malondialdehyde (MDA-oxidation marker) analysis, wherein the lower the increment of the malondialdehyde, the stronger the effect of shielding the blue light of the sample is.

Propylene glycol increment (malondialdehyde content after blue light irradiation-malondialdehyde content before blue light irradiation)/malondialdehyde content before blue light irradiation × 100%

Sensory evaluation:

10 kitchen workers or housewives were randomly selected to form a sensory panel, 10 drops of the sample were applied to the hands before the alkaline detergent product was used, and the redness, roughness and softness of the skin were evaluated on day 20 after the application. The evaluation scale ranged from 0 (excellent performance) to 5 (poor performance).

Performance test data

TABLE 1 Performance test results

	SPF index	Malondialdehyde increase%	Sensory evaluation
				Example 1	42.1	69	0
Example 2	43.5	67	0
				Example 3	41.7	62	0
Example 4	42.6	68	0
				Comparative example 1	37.3	78	2
Comparative example 2	38.6	75	1
				Comparative example 3	39.2	75	1
Comparative example 4	40.5	73	1
				Comparative example 5	40.3	74	1
Comparative example 6	40.2	74	1
				Comparative example 7	32.4	77	2
Comparative example 8	37.5	74	0
				Comparative example 9	40.6	66	0
Comparative example 10	39.1	74	1
				Comparative example 11	37.8	77	2
Comparative example 12	38.9	73	0
				Comparative example 13	31.6	76	3

Finally, it is pointed out that the foregoing examples are illustrative only, serving to explain some of the characteristics of the process according to the invention. The appended claims are intended to claim as broad a scope as is contemplated, and the examples presented herein are merely illustrative of selected implementations in accordance with all possible combinations of examples. Accordingly, it is applicants' intention that the appended claims are not to be limited by the choice of examples illustrating features of the invention. Also, where numerical ranges are used in the claims, subranges therein are included, and variations in these ranges are also to be construed as possible being covered by the appended claims.

Claims

1. The sun-screening repair composition is characterized by comprising the following raw materials in percentage by mass:

and C phase: anionic acrylic polymer 0.5-15%;

2. The suncare restoration composition according to claim 1, wherein the first inorganic filter is ultrafine titanium dioxide and the second inorganic filter is ultrafine zinc oxide.

3. The suncare restoration composition according to claim 2, wherein the ultrafine titanium dioxide and the ultrafine zinc oxide are both surface-treated with triethoxycaprylylsilane.

4. The sunscreen repair composition of claim 3, wherein the weight ratio of the ultrafine titanium dioxide surface-treated with triethoxycaprylylsilane to the ultrafine zinc oxide surface-treated with triethoxycaprylylsilane is (5-7): (6-10).

5. The suncare restoration composition according to claim 1, wherein the calcium sodium borosilicate has an average particle size of 8-15 μm.

6. The suncare restoration composition according to claim 1, wherein the branched polysiloxane is cetyl dimethicone or octyl methicone.

7. The suncare restoration composition according to claim 6, wherein the weight ratio of cetyl dimethicone to octyl methicone is from 1: (2-3).

8. The sunscreen restoration composition according to claim 1, wherein the plant extract is at least one of aloe vera extract, anthocyanidin extract, calendula extract, and seaweed extract.

9. A method for preparing a sunscreen healing composition according to any of claims 1 to 8, comprising the specific steps of:

10. The method as claimed in claim 9, wherein the stirring speed in the step S4 is 200-1000r/min, and the homogenizing speed is 3000-4000 r/min.