CN116919845A - Fibroin sun cream and preparation method thereof - Google Patents
Fibroin sun cream and preparation method thereof Download PDFInfo
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- CN116919845A CN116919845A CN202311109690.XA CN202311109690A CN116919845A CN 116919845 A CN116919845 A CN 116919845A CN 202311109690 A CN202311109690 A CN 202311109690A CN 116919845 A CN116919845 A CN 116919845A
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- fibroin
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- 108010022355 Fibroins Proteins 0.000 title claims abstract description 51
- 239000000516 sunscreening agent Substances 0.000 title claims abstract description 48
- 238000002360 preparation method Methods 0.000 title abstract description 11
- 239000000843 powder Substances 0.000 claims abstract description 60
- 239000002994 raw material Substances 0.000 claims abstract description 52
- 239000003995 emulsifying agent Substances 0.000 claims abstract description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 13
- 238000000034 method Methods 0.000 claims abstract description 12
- 239000004519 grease Substances 0.000 claims abstract description 11
- 239000011259 mixed solution Substances 0.000 claims description 35
- 230000000475 sunscreen effect Effects 0.000 claims description 23
- 238000002156 mixing Methods 0.000 claims description 21
- 239000000243 solution Substances 0.000 claims description 11
- 239000006071 cream Substances 0.000 claims description 10
- 239000000126 substance Substances 0.000 claims description 9
- 238000010438 heat treatment Methods 0.000 claims description 6
- 239000003795 chemical substances by application Substances 0.000 claims description 5
- -1 skin feel regulator Substances 0.000 claims description 5
- 238000004040 coloring Methods 0.000 claims description 4
- 238000001816 cooling Methods 0.000 claims description 4
- 239000004480 active ingredient Substances 0.000 claims description 3
- 239000002738 chelating agent Substances 0.000 claims description 3
- 238000000227 grinding Methods 0.000 claims description 3
- 239000003906 humectant Substances 0.000 claims description 3
- 229910017053 inorganic salt Inorganic materials 0.000 claims description 3
- 239000003755 preservative agent Substances 0.000 claims description 3
- 230000002335 preservative effect Effects 0.000 claims description 3
- 239000002904 solvent Substances 0.000 claims description 3
- 239000002562 thickening agent Substances 0.000 claims description 3
- 239000000686 essence Substances 0.000 claims description 2
- 229920002379 silicone rubber Polymers 0.000 claims description 2
- 239000002537 cosmetic Substances 0.000 abstract description 3
- 238000012216 screening Methods 0.000 description 10
- 230000000052 comparative effect Effects 0.000 description 9
- 239000003921 oil Substances 0.000 description 9
- 235000019198 oils Nutrition 0.000 description 9
- 238000005303 weighing Methods 0.000 description 9
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 8
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical group O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 7
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 6
- 239000000463 material Substances 0.000 description 5
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 239000000377 silicon dioxide Substances 0.000 description 4
- 235000010215 titanium dioxide Nutrition 0.000 description 4
- 239000004408 titanium dioxide Substances 0.000 description 3
- 239000011787 zinc oxide Substances 0.000 description 3
- QCDWFXQBSFUVSP-UHFFFAOYSA-N 2-phenoxyethanol Chemical compound OCCOC1=CC=CC=C1 QCDWFXQBSFUVSP-UHFFFAOYSA-N 0.000 description 2
- 239000004215 Carbon black (E152) Substances 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical group [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 2
- 238000010306 acid treatment Methods 0.000 description 2
- 238000004220 aggregation Methods 0.000 description 2
- 230000002776 aggregation Effects 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- DTPCFIHYWYONMD-UHFFFAOYSA-N decaethylene glycol Chemical compound OCCOCCOCCOCCOCCOCCOCCOCCOCCOCCO DTPCFIHYWYONMD-UHFFFAOYSA-N 0.000 description 2
- 239000004205 dimethyl polysiloxane Substances 0.000 description 2
- 229930195733 hydrocarbon Natural products 0.000 description 2
- 150000002430 hydrocarbons Chemical class 0.000 description 2
- 239000010445 mica Substances 0.000 description 2
- 229910052618 mica group Inorganic materials 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 229960005323 phenoxyethanol Drugs 0.000 description 2
- 229920000435 poly(dimethylsiloxane) Polymers 0.000 description 2
- 238000001556 precipitation Methods 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 229920002545 silicone oil Polymers 0.000 description 2
- 230000002087 whitening effect Effects 0.000 description 2
- VDBJCDWTNCKRTF-UHFFFAOYSA-N 6'-hydroxyspiro[2-benzofuran-3,9'-9ah-xanthene]-1,3'-dione Chemical compound O1C(=O)C2=CC=CC=C2C21C1C=CC(=O)C=C1OC1=CC(O)=CC=C21 VDBJCDWTNCKRTF-UHFFFAOYSA-N 0.000 description 1
- 241000251468 Actinopterygii Species 0.000 description 1
- 239000005995 Aluminium silicate Substances 0.000 description 1
- 229910052582 BN Inorganic materials 0.000 description 1
- PZNSFCLAULLKQX-UHFFFAOYSA-N Boron nitride Chemical compound N#B PZNSFCLAULLKQX-UHFFFAOYSA-N 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 239000004677 Nylon Substances 0.000 description 1
- 235000021355 Stearic acid Nutrition 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 235000012211 aluminium silicate Nutrition 0.000 description 1
- 150000001413 amino acids Chemical class 0.000 description 1
- 230000003712 anti-aging effect Effects 0.000 description 1
- IRERQBUNZFJFGC-UHFFFAOYSA-L azure blue Chemical compound [Na+].[Na+].[Na+].[Na+].[Na+].[Na+].[Na+].[Na+].[Al+3].[Al+3].[Al+3].[Al+3].[Al+3].[Al+3].[S-]S[S-].[O-][Si]([O-])([O-])[O-].[O-][Si]([O-])([O-])[O-].[O-][Si]([O-])([O-])[O-].[O-][Si]([O-])([O-])[O-].[O-][Si]([O-])([O-])[O-].[O-][Si]([O-])([O-])[O-] IRERQBUNZFJFGC-UHFFFAOYSA-L 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 235000012745 brilliant blue FCF Nutrition 0.000 description 1
- 125000004432 carbon atom Chemical group C* 0.000 description 1
- 235000012730 carminic acid Nutrition 0.000 description 1
- 239000004106 carminic acid Substances 0.000 description 1
- OIQPTROHQCGFEF-UHFFFAOYSA-L chembl1371409 Chemical compound [Na+].[Na+].OC1=CC=C2C=C(S([O-])(=O)=O)C=CC2=C1N=NC1=CC=C(S([O-])(=O)=O)C=C1 OIQPTROHQCGFEF-UHFFFAOYSA-L 0.000 description 1
- PZTQVMXMKVTIRC-UHFFFAOYSA-L chembl2028348 Chemical compound [Ca+2].[O-]S(=O)(=O)C1=CC(C)=CC=C1N=NC1=C(O)C(C([O-])=O)=CC2=CC=CC=C12 PZTQVMXMKVTIRC-UHFFFAOYSA-L 0.000 description 1
- 229940080423 cochineal Drugs 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- FPAFDBFIGPHWGO-UHFFFAOYSA-N dioxosilane;oxomagnesium;hydrate Chemical compound O.[Mg]=O.[Mg]=O.[Mg]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O FPAFDBFIGPHWGO-UHFFFAOYSA-N 0.000 description 1
- VPWFPZBFBFHIIL-UHFFFAOYSA-L disodium 4-[(4-methyl-2-sulfophenyl)diazenyl]-3-oxidonaphthalene-2-carboxylate Chemical compound [Na+].[Na+].[O-]S(=O)(=O)C1=CC(C)=CC=C1N=NC1=C(O)C(C([O-])=O)=CC2=CC=CC=C12 VPWFPZBFBFHIIL-UHFFFAOYSA-L 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- IDGUHHHQCWSQLU-UHFFFAOYSA-N ethanol;hydrate Chemical compound O.CCO IDGUHHHQCWSQLU-UHFFFAOYSA-N 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- SZVJSHCCFOBDDC-UHFFFAOYSA-N ferrosoferric oxide Chemical compound O=[Fe]O[Fe]O[Fe]=O SZVJSHCCFOBDDC-UHFFFAOYSA-N 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 125000001153 fluoro group Chemical group F* 0.000 description 1
- 238000000265 homogenisation Methods 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000000338 in vitro Methods 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- DCYOBGZUOMKFPA-UHFFFAOYSA-N iron(2+);iron(3+);octadecacyanide Chemical compound [Fe+2].[Fe+2].[Fe+2].[Fe+3].[Fe+3].[Fe+3].[Fe+3].N#[C-].N#[C-].N#[C-].N#[C-].N#[C-].N#[C-].N#[C-].N#[C-].N#[C-].N#[C-].N#[C-].N#[C-].N#[C-].N#[C-].N#[C-].N#[C-].N#[C-].N#[C-] DCYOBGZUOMKFPA-UHFFFAOYSA-N 0.000 description 1
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 description 1
- 239000002932 luster Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 239000002480 mineral oil Substances 0.000 description 1
- 235000010446 mineral oil Nutrition 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003607 modifier Substances 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 description 1
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- 239000012860 organic pigment Substances 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 229960003351 prussian blue Drugs 0.000 description 1
- 239000013225 prussian blue Substances 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 239000008117 stearic acid Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 235000015112 vegetable and seed oil Nutrition 0.000 description 1
- 239000008158 vegetable oil Substances 0.000 description 1
Landscapes
- Cosmetics (AREA)
Abstract
The invention relates to the technical field of cosmetics, in particular to fibroin sun cream and a preparation method thereof, and the technical scheme is characterized by comprising the following components in percentage by mass: 0.001-1% of beta-folded fibroin, 10-70% of grease, 10-40% of powder raw materials, 1-10% of emulsifying agent, 0.5-30% of auxiliary raw materials and the balance of water; wherein the powder raw materials comprise a physical sun-screening agent and functional powder. The invention has the advantages of excellent stability and sun-proof performance, simple use method and good waterproof and sweat-proof performance.
Description
Technical Field
The invention relates to the technical field of cosmetics, in particular to fibroin sun cream and a preparation method thereof.
Background
The sun cream is a cosmetic which is added with a sun screening agent capable of blocking or absorbing ultraviolet rays to prevent skin from being sunburned. The sun-screening principle of the sun-screening cream mainly comprises physical sun-screening and chemical sun-screening, and the physical sun-screening mainly achieves the sun-screening purpose by reflecting ultraviolet rays; chemical sunscreens mainly use chemical components to absorb ultraviolet light and thus perform sunscreens.
Nowadays, people, especially women, pay more attention to skin whitening and anti-aging, and the requirements on sun cream are increased. Most of the sun-screening products on the market have a higher content of sun-screening agent due to the variation of the intensity of the uv radiation and the environmental conditions, wherein the sun-screening agent contains a large amount of powder or powder slurry in order to improve the sun-screening performance of the product. However, increasing the content of the sun-screening agent easily causes the stability of the product to be reduced, the sun-screening performance and the stability of the product cannot be simultaneously considered, and the water-proof performance of the existing sun-screening product is general.
Disclosure of Invention
Aiming at the defects existing in the prior art, the invention aims to provide a fibroin sun cream and a preparation method thereof, and the fibroin sun cream has the advantages of excellent sun performance and good stability.
The technical aim of the invention is realized by the following technical scheme, and the fibroin sun cream comprises the following components in percentage by mass:
0.001-1% of beta-folded fibroin, 10-70% of grease, 10-40% of powder raw materials, 1-10% of emulsifying agent, 0.5-30% of auxiliary raw materials and the balance of water;
wherein the powder raw materials comprise a physical sun-screening agent and functional powder.
In one embodiment, a chemical sunscreen is also included.
In one embodiment, the beta-sheet fibroin is 0.001-0.05% by mass.
In one embodiment, the mass ratio of the beta-sheet fibroin to the powder raw material is 1:12-1:15000.
In one embodiment, the mass ratio of the beta-sheet fibroin to the powder raw material is 1:300-1:14000.
In one embodiment, the functional powder comprises at least one of a coloring powder, a physical powder, and a pearlescent powder, and the auxiliary raw material comprises one or more of a preservative, an active ingredient, an inorganic salt, a silicone body, a film forming agent, a humectant, a thickener, a skin feel modifier, a chelating agent, a solubilizing agent, and an essence.
The preparation method of the fibroin sun cream comprises the following steps:
s1, obtaining grease and powder raw materials, and adding the powder raw materials into the grease to be uniformly dispersed to obtain a first mixed solution;
s2, obtaining a beta-sheet fibroin solution, and adding the beta-sheet fibroin solution into the first mixed solution to be uniformly mixed to obtain a second mixed solution;
s3, obtaining an emulsifying agent, adding the emulsifying agent into the second mixed solution, and uniformly mixing to obtain a third mixed solution;
s4, obtaining auxiliary raw materials, sequentially adding water and the auxiliary raw materials into the third mixed solution, and uniformly mixing to obtain a target product.
In one embodiment, the concentration of the beta-sheet fibroin solution is 0.2-10%.
In one embodiment, the step S3 further comprises heating to dissolve the emulsifier at a temperature of 65-85deg.C;
and S4, cooling after uniformly mixing.
In one embodiment, in S1, the powder raw material is dispersed by a three-roll mill or a ball mill.
The fibroin sun cream and the preparation method thereof have the following beneficial effects:
the invention can simultaneously consider the stability and sun-proof performance of sun-proof products, and the beta-fibroin with the beta-folding content is added into sun-proof products with high content of physical sun-proof agents and functional powder so as to uniformly disperse and stabilize the powder raw materials and prevent the powder raw materials from aggregation and precipitation, thereby improving the stability and sun-proof value of the formula; in addition, the application method is simple, shaking is not needed, and the skin can be uniformly smeared; and the beta-folded fibroin can form a laminated film on the surface of the skin, is difficult to wash off when being smeared on the skin, and has good waterproof and sweat-proof performances.
Drawings
Fig. 1 is a flow chart of the steps of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the following examples, which are intended to facilitate the understanding of the present invention without any limitation thereto. 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 invention belongs. In case of conflict, the present specification, definitions, will control.
The term "prepared from …" as used herein is synonymous with "comprising". The terms "comprising," "including," "having," "containing," or any other variation thereof, as used herein, are intended to cover a non-exclusive inclusion. For example, a composition, step, method, article, or apparatus that comprises a list of elements is not necessarily limited to only those elements but may include other elements not expressly listed or inherent to such composition, step, method, article, or apparatus.
The conjunction "consisting of …" excludes any unspecified element, step or component. If used in a claim, such phrase will cause the claim to be closed, such that it does not include materials other than those described, except for conventional impurities associated therewith. When the phrase "consisting of …" appears in a clause of the claim body, rather than immediately following the subject, it is limited to only the elements described in that clause; other elements are not excluded from the stated claims as a whole.
When an equivalent, concentration, or other value or parameter is expressed as a range, preferred range, or a range bounded by a list of upper preferable values and lower preferable values, this is to be understood as specifically disclosing all ranges formed from any pair of any upper range limit or preferred value and any lower range limit or preferred value, regardless of whether ranges are separately disclosed. For example, when ranges of "1 to 5" are disclosed, the described ranges should be construed to include ranges of "1 to 4", "1 to 3", "1 to 2 and 4 to 5", "1 to 3 and 5", and the like. When a numerical range is described herein, unless otherwise indicated, the range is intended to include its endpoints and all integers and fractions within the range.
The present invention will be described in detail below with reference to the accompanying drawings and examples.
A fibroin sun cream comprises the following components in percentage by mass:
0.001-1% of beta-folded fibroin, 10-70% of grease, 10-40% of powder raw materials, 1-10% of emulsifying agent, 0.5-30% of auxiliary raw materials and the balance of water;
wherein the powder raw materials comprise a physical sun-screening agent and functional powder. In practice, the physical sunscreen agent is titanium dioxide or zinc oxide, and other types of physical sunscreen materials may be used.
The invention can simultaneously consider the stability and sun-proof performance of sun-proof products, is especially suitable for physical sun-proof agent and functional powder with high content, and can uniformly disperse and stabilize the powder raw materials by adding beta-folding fibroin, thereby preventing the powder raw materials from aggregation and precipitation, and further improving the stability and sun-proof value of the formula; in addition, the application method is simple, shaking is not needed, and the skin can be uniformly smeared; and the beta-folded fibroin can form a laminated film on the surface of the skin, is difficult to wash off when being smeared on the skin, and has excellent waterproof and sweat-proof performances.
In actual production, the length of the beta-sheet fibroin is 20-4000nm, the diameter is 5-30nm, and the content of the beta-sheet is more than or equal to 30%; the oil is one or more selected from vegetable oil, mineral oil and synthetic oil; in addition, the grease can be one or more selected from hydrocarbon oil, silicone oil and fluorinated oil, wherein the hydrocarbon oil mainly contains hydrogen and carbon atoms; silicone oil refers to oils containing at least one silicon atom, in particular at least one S i-O group; fluorinated oil refers to an oil containing at least one fluorine atom.
Specifically, the fibroin sunscreen cream also includes a chemical sunscreen. The present invention includes physical sunscreen products or physical and chemical combination sunscreen products.
Specifically, the mass percentage of the beta-sheet fibroin is 0.001-0.05%.
Specifically, the mass ratio of the beta-folded fibroin to the powder raw material is 1:12-1:15000.
Further, the mass ratio of the beta-folded fibroin to the powder raw material is 1:300-1:14000.
Specifically, the functional powder comprises at least one of coloring powder, constitution powder and pearl powder, and the auxiliary raw materials comprise one or more of preservative, active ingredient, inorganic salt, silicon elastomer, film forming agent, humectant, thickener, skin feel regulator, chelating agent, solubilizer and essence.
In actual production, the coloring powder comprises white powder and color-mixing powder, wherein the white powder mainly comprises titanium white powder, plays roles in covering, whitening and blocking ultraviolet rays, and the color-mixing powder mainly comprises iron oxide red, iron oxide yellow, iron oxide black, ultramarine, prussian blue and other mineral pigments with the role in adjusting color tone, and also comprises natural or synthetic colored organic compounds, natural extracts or biological compounds, such as cochineal, organic pigments and lakes, such as red 6, red 7, red 33, yellow 6, yellow 7, blue 1 and the like; the constitution powder can be titanium dioxide, zinc oxide, silica powder, organic silica powder, talcum powder, mica, kaolin, silicon dioxide, boron nitride or nylon powder, or other constitution powder with functions of adjusting the spreadability, specific skin feel and specific function of the product; the pearl powder is mainly mica titanium or fish scale, which improves the luster and texture of the product. The powder may have a surface treatment such as a silicon treatment, an amino acid treatment, a stearic acid treatment, a multiprocessing, or the like.
Referring to fig. 1, the preparation method of the fibroin sunscreen cream comprises the following steps:
s1, obtaining grease and powder raw materials, and adding the powder raw materials into the grease to be uniformly dispersed to obtain a first mixed solution;
s2, obtaining a beta-sheet fibroin solution, adding the beta-sheet fibroin solution into the first mixed solution, and uniformly mixing to obtain a second mixed solution;
in actual production, the homogenization mixing can be repeated through a homogenizer to obtain a second mixed solution;
s3, obtaining an emulsifying agent, adding the emulsifying agent into the second mixed solution, and uniformly mixing to obtain a third mixed solution;
in actual production, if the sun cream is physically and chemically combined sun cream, adding the chemical sun cream and the emulsifying agent into the second mixed solution, and uniformly mixing;
s4, obtaining auxiliary raw materials, sequentially adding water and the auxiliary raw materials into the third mixed solution, and uniformly mixing to obtain a target product.
The sun-proof product obtained by the preparation method has good formula stability, and the SPF value and the waterproof and sweat-proof effects of the product are superior to those of a blank product without the beta-folded fibroin.
Specifically, the concentration of the beta-sheet fibroin solution is 0.2-10%.
Specifically, S3 also comprises heating to dissolve the emulsifier, wherein the heating temperature is 65-85 ℃;
s4, cooling after uniformly mixing.
Specifically, in S1, the dispersion powder raw material is ground by a three-roll grinder or a ball mill.
Example 1 and comparative example 1
Example 1 and comparative example 1 provide physical sunscreens comprising the components in the mass percentages shown in the following table, respectively, example 1 being supplemented with beta-sheet fibroin as compared to comparative example 1.
The preparation method of example 1 and comparative example 1 comprises the following steps:
s1, weighing cyclopentadimethicone, titanium dioxide, zinc oxide and silica according to a proportion, mixing, and uniformly grinding the materials by using a three-roller grinder to obtain a first mixed solution;
s2, obtaining a 0.5% beta-sheet fibroin solution, adding the solution into the first mixed solution according to a proportion, and uniformly mixing to obtain a second mixed solution;
s3, weighing PEG-10 polydimethylsiloxane according to a proportion, adding the PEG-10 polydimethylsiloxane into the second mixed solution, stirring for 1min under the condition of 2000rpm by using a homogenizer, and fully and uniformly mixing to obtain a third mixed solution;
s4, weighing water and phenoxyethanol according to a proportion, sequentially adding the water and the phenoxyethanol into the third mixed solution, and homogenizing for 5min under the condition of 6000rpm by using a homogenizer to obtain a target product.
Example 2
Example 2 provides a physical and chemical combination sunscreen comprising the components in the mass percentages indicated in the following table.
The preparation method of example 2 comprises the following steps:
s1, weighing the phase A raw materials in proportion, and uniformly grinding the phase A raw materials by using a three-roller grinder to obtain a first mixed solution;
s2, weighing the B-phase raw material according to a proportion, adding the B-phase raw material into the first mixed solution, and homogenizing uniformly at a rotating speed of 6000rpm by using a homogenizer to obtain a second mixed solution;
s3, weighing and mixing the C-phase raw materials in proportion, heating at 65-75 ℃ until the C-phase raw materials are completely dissolved, adding the completely dissolved C-phase into the second mixed solution, and uniformly mixing;
weighing the phase D raw materials according to a proportion, adding the phase D raw materials into the mixed solution, and homogenizing the mixed solution uniformly under the condition of 6000rpm by using a homogenizer to obtain a third mixed solution;
s4, weighing the F-phase raw materials according to a proportion, uniformly mixing, adding the F-phase raw materials into the third mixed solution, uniformly homogenizing under the condition of 6000rpm, and cooling;
and (3) weighing the E-phase raw materials according to a proportion, adding the E-phase raw materials into the mixed solution, and uniformly mixing to obtain a target product.
Test comparison:
the sunscreens obtained in example 1 and comparative example 1 were left to stand in an incubator at 45 ℃ for 8 weeks, and the stability of both in high temperature storage was observed, and the sunscreens of example 1 were free from abnormal phenomenon and slightly leaked oil in comparative example 1.
The two are sent to a third party detection mechanism for in-vitro SPF value test, specifically, equal amount of the example 1 and the comparative example 1 are smeared on the base materials with the same area, the base materials are placed in an oscillating water bath for 20min, taken out, kept stand for 20min, placed in the oscillating water bath again for 20min, taken out, dried and tested for SPF values. The results are shown in the following table:
comparing the difference in SPF values before and after the water bath, the water repellency of example 1 was higher than that of comparative example 1, and the SPF value of example 1 was also higher than that of comparative example 1.
The foregoing examples illustrate only a few embodiments of the invention and are described in detail herein without thereby limiting the scope of the invention. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention. Accordingly, the scope of protection of the present invention is to be determined by the appended claims.
Claims (10)
1. The fibroin sun cream is characterized by comprising the following components in percentage by mass:
0.001-1% of beta-folded fibroin, 10-70% of grease, 10-40% of powder raw materials, 1-10% of emulsifying agent, 0.5-30% of auxiliary raw materials and the balance of water;
wherein the powder raw materials comprise a physical sun-screening agent and functional powder.
2. The fibroin sunscreen cream of claim 1, wherein: chemical sunscreens are also included.
3. The fibroin sunscreen cream of claim 1, wherein: the mass percentage of the beta-sheet fibroin is 0.001-0.05%.
4. The fibroin sunscreen cream of claim 1, wherein: the mass ratio of the beta-folded fibroin to the powder raw material is 1:12-1:15000.
5. The fibroin sunscreen according to claim 4, wherein: the mass ratio of the beta-folded fibroin to the powder raw material is 1:300-1:14000.
6. The fibroin sunscreen cream of claim 1, wherein: the functional powder comprises at least one of coloring powder, constitution powder and pearl powder, and the auxiliary raw materials comprise one or more of preservative, active ingredient, inorganic salt, silicon elastomer, film forming agent, humectant, thickening agent, skin feel regulator, chelating agent, solubilizer and essence.
7. A method for preparing a fibroin sunscreen according to any one of claims 1 to 6, comprising the steps of:
s1, obtaining grease and powder raw materials, and adding the powder raw materials into the grease to be uniformly dispersed to obtain a first mixed solution;
s2, obtaining a beta-sheet fibroin solution, and adding the beta-sheet fibroin solution into the first mixed solution to be uniformly mixed to obtain a second mixed solution;
s3, obtaining an emulsifying agent, adding the emulsifying agent into the second mixed solution, and uniformly mixing to obtain a third mixed solution;
s4, obtaining auxiliary raw materials, sequentially adding water and the auxiliary raw materials into the third mixed solution, and uniformly mixing to obtain a target product.
8. The method for preparing the fibroin sunscreen cream according to claim 7, wherein the method comprises the following steps: the concentration of the beta-sheet fibroin solution is 0.2-10%.
9. The method for preparing the fibroin sunscreen cream according to claim 7, wherein the method comprises the following steps: the S3 further comprises heating and dissolving the emulsifier, wherein the heating temperature is 65-85 ℃;
and S4, cooling after uniformly mixing.
10. The method for preparing the fibroin sunscreen cream according to claim 7, wherein the method comprises the following steps: in S1, the powder raw material is dispersed by grinding with a three-roll mill or a ball mill.
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