243 results about "Sunscreen agents" patented technology

The invention belongs to the technical field of cosmetic efficacy evaluation, and discloses a sunscreen efficacy evaluation method and application thereof, and the method comprises the following steps: building a blank group; establishing a model group; establishing a sample group; performing constant-temperature incubation on the blank group, the model group and the sample group for a first period of time, recording a swimming track, and calculating swimming distance increment and after-sun burning pain relieving efficiency of each group of zebrafish; performing constant-temperature incubation on the blank group, the model group and the sample group for a second duration, recording the tail fin and dorsal fin area of the zebra fish, and calculating the sunburn prevention efficiency; performing constant-temperature incubation on the blank group, the model group and the sample group for a third period of time, recording the head melanin area of the zebra fish, and calculating the anti-sunburn efficiency; and grading the sunscreen effect of the sample. The method disclosed by the invention has the advantages of low cost, short test period, high reproducibility, high visualization degree, intuitive and understandable test result and the like, and can be used for accurately grading the sunscreen effects of chemical sunscreen agents, water-soluble sunscreen cosmetics and raw materials thereof from the whole animal level.

The invention relates to the technical field of cosmetics, and particularly discloses a sunscreen synergistic composition and application thereof, and the sunscreen synergistic composition comprises the following components: sugarcane extract, cyperus esculentus root oil, and Brazil palm wax (and) rice chaff wax. The sunscreen synergistic effect of the sunscreen synergistic composition is utilized, a chemical sunscreen agent with potential safety hazards can be partially replaced, the potential safety hazard coefficient is reduced due to the fact that all the sunscreen components are safe or the needed adding amount is low, and a sunscreen product which is high in sunscreen coefficient, mild in formula, low in potential safety hazards and even environmentally friendly is obtained.

The invention relates to a fiber-reinforced aerogel composite material containing a carbon and titanium dioxide biphase hybrid opacifying agent as well as a preparation method and application of the fiber-reinforced aerogel composite material. The fiber reinforced aerogel composite material containing the carbon and titanium dioxide dual-phase hybrid opacifying agent comprises an inorganic aerogel matrix, wherein a reinforced fiber skeleton and the carbon / titanium dioxide dual-phase hybrid opacifying agent are dispersed in the inorganic aerogel matrix; the carbon / titanium dioxide biphase hybrid opacifying agent comprises a titanium dioxide shell layer and carbon / titanium dioxide core-shell structure particles, wherein the surface of a reinforced fiber skeleton is coated with the titanium dioxide shell layer in situ; gaps of the reinforced fiber skeleton are filled with the carbon / titanium dioxide core-shell structure particles. The problem to be solved is to construct a two-phase hybrid shading system in which carbon / titanium dioxide core-shell particles and a titanium dioxide coating layer on the fiber surface are combined through one-step in-situ synthesis, so that the heat insulation capacity of the composite material in a high-temperature environment is synergistically improved.

The invention relates to physico-chemical combined sunscreen water dispersion slurry as well as a preparation method and application thereof. The water dispersible slurry comprises 5-20% of an inorganic sun-screening agent, 25-50% of an organic sun-screening agent, 10-30% of a humectant, 5-15% of an emulsifier, 0.1-2% of a preservative and the balance of water. The preparation method comprises the following steps: heating and dissolving the organic sun-screening agent, and cooling to room temperature; dispersing the emulsifier into the humectant, and uniformly stirring to prepare D-phase gel; adding inorganic sun-screening agent powder and the organic sun-screening agent liquid into the D-phase gel, and stirring at a high speed to obtain viscous O / D-phase gel; the mixed water and the O / D phase gel are stirred and dispersed into O / W emulsion; and carrying out high-pressure homogenization on the O / W emulsion. The water dispersible slurry can be used as a raw material to be applied to sunscreen daily cosmetics, especially O / W type sunscreen cream. By precisely regulating and controlling D-phase emulsification and a high-pressure homogenization process, a stable nano dispersion system is constructed, particle aggregation is inhibited, and the stability of the water dispersion slurry is improved. The prepared sunscreen water dispersible slurry is easy to disperse and suitable for various sunscreen systems, and the production efficiency is greatly improved.

The invention discloses a composite sunscreen composition with excellent film-forming property and sunscreen stability as well as a preparation method and application thereof, and belongs to the technical field of daily chemicals. The composite sunscreen composition is prepared from inulin lauryl carbamate, bis (lauramide glutamine) lysine sodium, hydroxypropyl trimethyl ammonium chloride hyaluronic acid, an ammonium acryloyldimethyl taurate / VP copolymer, a sunscreen agent, basic grease, and cosmetically acceptable auxiliary materials and a solvent, the sunscreen emulsion prepared on the basis of the composition can quickly form a stable, light, thin and breathable sunscreen film on the surface of skin, solves the problems that a sunscreen agent in a traditional sunscreen product is non-uniform in agglomeration and dispersion, a formed film is rigid and airtight, the sunscreen effect is easy to lose due to sweating / friction, the skin feeling is poor and the like, and has the advantages of high sunscreen stability, excellent water resistance and good skin feeling; the method can be widely applied to preparation of skin care products with a sunscreen effect.

The invention discloses a kind of plant sunscreen synergistic composition and application thereof, belong to the field of cosmetics technology; The plant sunscreen synergistic composition provided by the present invention includes the following components in parts by mass: 0.1-1 parts of Cimicifuga extract, 0.3-1 parts of Eucommia leaf extract, 1-3 parts of Rambutan peel extract, 5-10 parts of Cyperus root extract. The present invention is compounded by selecting the components of appropriate mass ratio, and the obtained composition has a good effect of absorbing ultraviolet rays, and also has excellent anti-inflammatory and soothing effect. Moreover, when subsequently added into sunscreen products, it can effectively stabilize the physical sunscreen and chemical sunscreen in sunscreen lotion, and can also enhance the sunscreen effect of physical sunscreen and chemical sunscreen, improve the durability of sunscreen products, and can enhance the repair of sunscreen products to skin after sun exposure.

The invention belongs to the technical field of cosmetics, and particularly relates to fog-feeling smoothie-texture sunscreen cream and a preparation method thereof. The fog-feeling smoothie texture sunscreen cream is prepared from the following components in percentage by weight: 12 to 30 percent of a sunscreen agent, 10 to 30 percent of an emollient, 5 to 20 percent of a humectant, 3 to 6 percent of an emulsifier, 0.3 to 2 percent of a skin conditioner, 1 to 3 percent of a thickening agent, 0.3 to 0.8 percent of an antioxidant, 0.03 to 0.06 percent of a chelating agent, 0.01 to 0.05 percent of essence and the balance of water, the sunscreen agent is a combination of polysiloxane 15, diethylamino hydroxybenzoyl hexyl benzoate, bis (2-ethylhexyloxy) phenol methoxyphenyl triazine and ethylhexyl triazinone. Through the synergistic effect of specific sun-screening agent components, better sun-screening performance and sun-screening stability are achieved. And through a specific emulsifying and thickening system, the product is endowed with foggy smoothie texture, is fresh and non-sticky, and is hidden and glossy. Meanwhile, the composition is very mild to various skin types.

The invention relates to the technical field of cosmetics, in particular to a sunscreen composition and a preparation method and application thereof. The sunscreen composition disclosed by the invention is prepared by adopting a specific emulsifier and a D-phase emulsification process, obtained particles are fine and uniform in granularity, and not only have excellent stability, but also can effectively improve the sunscreen efficiency of a sunscreen product, and has an obvious synergistic effect on the sunscreen effect; in addition, the use amount of a chemical sun-screening agent in a sun-screening product can be reduced, then the problem that the skin feeling of a high-magnification sun-screening product is greasy is solved, and the composition is suitable for preparing cosmetics with the sun-screening or light protection effect and has a good application prospect in the field of cosmetics.

The invention belongs to the field of new daily chemical materials, and discloses a sunscreen microbead gel composition based on interfacial tension regulation, which comprises a gel-state water-based continuous phase and an oil-based dispersion phase containing an oil-soluble sunscreen agent, the oil-based dispersion phase is composed of a plurality of microbeads with the particle size of 0.5-2 mm; the surface tension of the water-based continuous phase is 40 to 65 dyn / cm; the weight of the oil-based dispersion phase is not less than 10% of the total weight of the sunscreen microbead gel composition. According to the scheme, an oil-based dispersion phase is dispersed into gel to form suspended bead gel, and by controlling the particle size, the surface tension and the volume content of the beads, all the beads can be synchronously broken after the gel is coated on the skin, so that the oil phases in the beads can be spread at the same time, and meanwhile, a good coating hand feeling is kept; the composition provided by the invention can realize relatively low ultraviolet transmittance. Meanwhile, the invention further provides application and cosmetics of the composition.

The invention provides a composite sun-screening agent based on an encapsulation technology as well as a preparation method and application of the composite sun-screening agent. The preparation method of the composite sun-screening agent comprises the following steps: fully dispersing hydroxyapatite nanoparticles in an alkaline solvent, adding a dopamine monomer, and carrying out oxidative polymerization reaction, centrifugal washing and drying to obtain HAP-PDA composite nanoparticles; and fully dispersing the HAP-PDA composite nanoparticles in a solvent, adding a mixed solution of a chemical sun-screening agent and an antioxidant and a surfactant, and performing encapsulation reaction and centrifugation to obtain the product. According to the invention, a polydopamine and hydroxyapatite composite encapsulation technology is innovatively adopted, so that the stability and biocompatibility of the sun-screening agent and the antioxidant are remarkably improved, the sun-screening effect is enhanced, and the product is endowed with a lasting sun-screening effect and excellent oxidation resistance. According to the invention, the limitation of a traditional sunscreen product is broken through, and safer, more efficient and more comfortable sunscreen experience can be provided for consumers.

The invention provides a relieving and sunscreen plant composition with effects of reducing toxicity and enhancing efficacy as well as a preparation method and application thereof, and belongs to the technical field of medicines. The composition is prepared from the following raw materials in parts by weight: 5 to 8 parts of water-containing inula flower extract, 10 to 15 parts of chamomile extract, 4 to 6 parts of radix gentianae extract and 25 to 40 parts of schizophyllan. The composition is prepared through precise combination and scientific process treatment of the four active ingredients, the relieving effect on skin injuries caused by sun-screening agent stimulation and ultraviolet radiation is remarkably improved, the resisting effect of ultraviolet light on the skin injuries is remarkably improved, part of chemical sun-screening agents can be replaced, the toxicity of cosmetics is reduced, and the skin care effect is good. The synergistic effect of toxicity reduction, efficient ultraviolet resistance and soothing and repairing is achieved, and a new technical scheme is provided for developing cosmetics with low toxicity, efficient ultraviolet resistance and sunscreen two-way soothing and repairing.

Disclosed is a core-shell microcapsule comprising a core containing at least one active ingredient, and comprising a shell, said shell constituting a wall around the core and representing a mass fraction of at least 20% of the total mass of the microcapsule, said microcapsule being characterized in that the shell comprises at least one crosslinked polymer, preferably obtained by interfacial polymerization. The size of the microcapsules is preferably less than 1 μm. The active ingredient can be a sunscreen.

The present invention relates to a cosmetic preparation comprising at least one mineral sunscreen filter, polyglyceryl-4 diisostearate / polyhydroxystearate / sebacate, polyhydroxystearic acid, isostearic acid, polyglyceryl-2 oleate and polyglyceryl-2 stearate; and the use of the preparation for protection against sunlight.

The application discloses a polyurethane emulsion sunscreen film and a preparation method thereof. The sunscreen agent is surface grafted and modified by a silane coupling agent, so that the sunscreen agent is connected with a polyurethane molecular chain in a covalent bond, thereby solving the problem of weak interface bonding force and easy falling in traditional physical blending. On this basis, the molecular structure of the polyurethane matrix is ingeniously designed, and the grafted sunscreen agent is actively guided to migrate and enrich on the surface of the coating in the emulsion film forming process. The "surface enrichment" structure makes the sunscreen agent concentrate on the surface of the ultraviolet light, realizes the maximization of the function, and thus a high ultraviolet protection factor is obtained under a low addition amount. Meanwhile, the internal matrix can keep its flexibility and mechanical integrity due to the avoidance of a large amount of filler filling, and the chemical bonding on the surface ensures the long-lasting and wash-resistant sunscreen function, so that the synergistic effect of high efficiency, durability and mechanical performance balance is finally achieved.

The invention relates to a high-power sunscreen lotion and a preparation method thereof. The high-power sunscreen lotion is a silicone oil-in-water emulsion. The composition comprises a continuous oil phase, a dispersed water phase, a solid-phase component and a film-forming agent, the mass ratio of the water phase to the oil phase is (1: 10)-(1: 1); the continuous oil phase comprises silicone oil and a chemical sun-screening agent, and the chemical sun-screening agent comprises an oil-soluble chemical sun-screening agent; the dispersed aqueous phase comprises water and a water-soluble chemical sun-screening agent; the solid-phase component is dispersed in the continuous oil phase; the solid phase component comprises a physical sun-screening agent for silicon surface treatment and a powder composite sun-screening agent; the powder composite sun-screening agent is composite particles of porous silica loaded with a chemical sun-screening agent; the film-forming agent is a silane film-forming polymer which is dissolved or swelled in a continuous oil phase; the film-forming agent, the continuous oil phase and the solid phase jointly form a three-dimensional network, so that a continuous, uniform and water-resistant sunscreen film can be formed on the surface of skin after the sunscreen is smeared and dried; in addition, when the smearing amount of the sunscreen lotion is 1mg / cm < 2 >, the SPF value is not lower than 50.

The present invention relates to a UV filter concentrate comprising at least one oil-soluble organic UV filter UV1 that is liquid at room temperature, and at least two different oil-soluble organic UV filters UV2 and UV3 that are crystalline at room temperature, and at least one diol. The UV filter concentrate is processed into a sunscreen composition or a cosmetic composition or a home care composition.

The invention provides a liquid crystal response type intelligent structure-based sunscreen composition and a preparation method and application thereof, the liquid crystal response type intelligent structure-based sunscreen composition comprises the following components: a chemical sunscreen agent, a liquid crystal base material, an amphiphilic self-assembly film system, a structure-oriented fixing agent, a solvent, a pH regulator and water, the liquid crystal base material is an amphiphilic compound capable of being self-assembled in an oil-water system to form a layered liquid crystal structure, and the structure-oriented fixing agent comprises a fixing agent used for providing a three-dimensional network framework in the emulsification film-forming process and an interface stabilizer used for reducing the interfacial tension between a liquid crystal phase and an oil phase. A liquid crystal response type intelligent structure which can stably exist in a normal state and can generate predictable and controllable microcosmic phase change and recombination under triggering of external factors such as sweat and moisture is constructed, and the effect that the sunscreen efficiency is increased without reduction is achieved by forming a more compact and more ordered sunscreen film.

The present application relates to a kind of photo-crosslinkable polymer with anti-UV effect, its preparation method and application, with the anti-UV effect of small molecule compound is connected to the hydrophilic natural polymer skeleton by chemical bond connection mode, while introducing photo-crosslinkable (methyl) acryl, prepare the photo-crosslinkable polymer with anti-UV effect, its solution is irradiated after specific wavelength light, under the action of photoinitiator, (methyl) acryl is initiated crosslinking polymerization, form the water gel that does not flow, form physical barrier in contact site, block external ultraviolet radiation or pollution.Anti-UV small molecule is connected by chemical bond in crosslinking network, play out sunscreen effect, while, the mechanical strength of gel network can resist water impact and the penetration of sweat, so that the sunscreen water gel of the present application is in extension sunscreen molecule's retention time, also reduce the security risk of small molecule sunscreen agent penetration into skin.

The present application relates to the field of cosmetics, and relates to a cosmetic with whitening and sunscreen functions and a preparation method thereof. Calculated by mass percentage, the whitening and sunscreen composition comprises: 0.5% to 5% melanin, 0.1% to 0.5% allantoin, 0.1% to 1% ferulic acid, 0.01% to 0.05% astaxanthin, 0.1% to 0.5% orotic acid; the remainder is water. Chemical sunscreens and physical sunscreens are compounded so that both the internal and external phases of the cosmetic contain sunscreens, which can avoid sunscreen voids to the greatest extent. By compounding melanin, allantoin, ferulic acid, astaxanthin, and orotic acid in a specific ratio and compounding them in the above-mentioned cosmetic formula, the ability of the cosmetic to absorb ultraviolet rays, accelerate wound healing, effectively scavenge free radicals, inhibit inflammatory factors, promote skin renewal, and combine pathways to further improve the product's sunscreen effect.

The present invention relates to the compositions comprising algae, specifically Spirulina platensis and Chlorella, and their use for the treatment of crops, such as fruits. vegetables and arable crops against heat stress, especially sunburn.

This invention provides a phenolic acid-modified attapulgite composite sunscreen agent, its preparation method, and applications, as well as a Pickering sunscreen lotion, belonging to the field of cosmetic technology. The method of this invention includes acid treatment of attapulgite, surfactant modification, loading of phenolic acid biomolecules, and hydrophobic modification. Using modified attapulgite as a carrier, this invention loads phenolic acid biomolecules through electrostatic adsorption to construct a composite synergistic system, and further modifies the surface with hydrophobicity to obtain a composite sunscreen agent with high stability and excellent sun protection performance. The sunscreen agent prepared by this invention combines physical shielding and biological protection functions, exhibiting excellent UV absorption capacity, good dispersibility, skin compatibility, and a pleasant feel on the skin. It solves the problems of nanoparticle aggregation, whitening, and poor photostability in existing sunscreen products, making it suitable for the cosmetic sunscreen field. It can achieve broad-spectrum UVA / UVB protection, antioxidant properties, and soothing repair, showing broad application prospects.

This invention discloses a multi-effect sunscreen agent and its preparation method, relating to the field of cosmetic technology. This invention adds vetiver root extract, winged fruit oil, and rice bran oil extract to existing conventional chemical sunscreen ingredients, which not only reduces the amount of isoamyl methoxycinnamate, ethylhexyl triazine ketone, methylene bis-benzotriazolyl tetramethylbutylphenol, and bis-ethylhexyloxyphenol methoxyphenyl triazine used in existing chemical sunscreens, but also synergistically increases the sun protection effect. The active ingredients of this multi-effect sunscreen agent are plant-derived substances, making the ingredients safe and mild. Furthermore, the preparation method is simple, the ingredients are readily available, and it has broad market application prospects.

The present invention belongs to the technical field of high-value utilization of woody biomass resources, specifically relating to light-colored kenaf lignin nanoparticles, their preparation method, and applications. The present invention chemically pretreats kenaf xylem to obtain light-colored, stable lignin, which is then further prepared into nanoparticles for use as a natural sunscreen. The remaining fibers are then combined with other fibers to make paper. The preparation method is simple, low-cost, and easy to implement, providing a new strategy for the comprehensive utilization of kenaf biomass resources and possessing excellent practical application value.

The application provides a skin care composition containing siloxane treated cerium oxide and a preparation method thereof, and belongs to the technical field of cosmetics. The skin care composition comprises the following components: 5-15% of siloxane treated cerium oxide, 0.5-1.5% of sodium chloride or magnesium sulfate, 10-20% of a humectant, 0.1-1.5% of an antioxidant, 0.5-2% of a thickening agent, 0.001-4% of a skin conditioning agent, 2-6% of an emulsifier, 10-35% of an emollient, 0.05-0.25% of a fragrance, 0-10% of a filler, and water in a residual amount. The application adds the siloxane treated cerium oxide in the skin care composition, compared with traditional physical sunscreen agents, and overcomes the disadvantages of pale color and low ultraviolet absorption efficiency. Secondly, through the design of a multiple emulsification system formula, the purpose of high content of the siloxane treated cerium oxide is achieved, and the characteristics of moisturizing, lightness and non-stickiness are achieved.

This invention relates to the field of nanomedicine formulation technology, specifically disclosing the application of selenium humate in the preparation of sunscreens and the sunscreens themselves. The selenium humate is prepared by reacting sodium humate with sodium selenite. The selenium humate provided by this invention exhibits broad-spectrum absorption characteristics against UVA / UVB, significantly improving the sun protection factor of products. It effectively scavenge free radicals, inhibits the increase in reactive oxygen species levels in cells caused by ultraviolet radiation and the overexpression of inflammatory factors IL-6 and IL-8, significantly alleviates symptoms of ultraviolet damage to the skin, and promotes collagen synthesis in the dermis, possessing excellent integrated protection and repair functions.

The invention belongs to the technical field of sunscreen cosmetics, and particularly relates to a sunscreen agent based on hydroxyapatite microspheres and a preparation method of the sunscreen agent. The sun-screening agent based on the hydroxyapatite microspheres is prepared from the following components in percentage by mass: 13 percent to 26 percent of water-soluble chitosan, 40 percent to 43 percent of the hydroxyapatite microspheres and 34 percent to 44 percent of a freeze-drying protective agent. The sun-screening agent can act on the skin epidermis through introduction, is different from a traditional sun-screening agent which is only simply smeared to maintain the sun-screening effect of one day or several days, and the long-acting sun-screening agent based on the hydroxyapatite microspheres can stay on the skin epidermis for a long time to achieve the effects of absorbing and reflecting UVB, so that the sun-screening effect is achieved until the sun-screening agent is completely degraded.

The present invention relates primarily to the use of graphitic carbon nitride containing at least one oxygen atom, as an active ingredient in paints, pigments, plastic fillers, active ingredients in cosmetics, and / or as a sunscreen, such as a UV A and / or UV B absorber. Graphitic carbon nitride can exhibit UV A and / or UV B absorption properties and a white to yellow color, and thus is useful as a UV absorber for various products requiring coloring properties and an attractive appearance.

The invention relates to the field of cosmetics, in particular to a composition and application thereof in sunscreen. The composition adopts pure natural components, is mild and safe, and is friendly to the environment and human bodies. The dosage of a chemical sun-screening agent in a high-power sun-screening product can be reduced, and a fresh and light skin feeling is provided. The sunscreen composition focuses on full-band strong adsorption of spectral ultraviolet rays and blue rays in the early stage, the SPF value can be directly increased by 20%-35% after entering the formula, the sunscreen synergistic effect is remarkable, and the dosage of a chemical sunscreen agent can be reduced by 10%-15% or the SPF value can be increased by 20%-35% by adding 1% of the sunscreen composition. Soothing, repairing and anti-blackening effects are provided for skin problems caused by ultraviolet rays, and full-dimensional sunscreen is achieved.

The invention discloses a high-power sunscreen composition with light and thin skin feeling as well as a preparation method and application thereof, and belongs to the technical field of cosmetics. The high-power sunscreen composition comprises the following components in parts by weight: 17-35 parts of a sunscreen agent, 1-11 parts of a skin feeling adjusting composition, 1-4 parts of pre-emulsified slurry, 1.5-5 parts of an emulsifier, 0.4-2.2 parts of an emulsion stabilizer, 2-7 parts of a skin conditioner and the balance of water, wherein the total amount is 100 parts. Through the optimization of the component formula and the preparation method, the contradiction among the viscosity, the stability and the sunscreen effect of the product can be well solved; the prepared sunscreen composition has light and thin skin feeling, is not greasy, low in product viscosity and stable in system, and the sunscreen effect can reach the indexes of SPF50 < + > and PA < + + + + >.

The application discloses a kind of high-strength high-temperature-resistant ceramic fiber aerogel and preparation method thereof, aerogel is composed of modified sunscreen agent, binder and ceramic fiber, ceramic fiber forms honeycomb hole, binder and modified sunscreen agent are uniformly attached on hole wall;Wherein modified sunscreen agent is the " double-layer ball " structure of silica wrapping titanium dioxide particle.The application is bonded by binder between fiber and fiber, and directional freeze drying is prepared anisotropic ceramic fiber aerogel, after high-temperature heat treatment, aerogel shows extremely high strength, can withstand 500KPa pressure in single orientation, can satisfy many actual needs.