CN119818396A - Sun-screening agent inclusion and preparation method and application thereof - Google Patents
Sun-screening agent inclusion and preparation method and application thereof Download PDFInfo
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- CN119818396A CN119818396A CN202411954107.XA CN202411954107A CN119818396A CN 119818396 A CN119818396 A CN 119818396A CN 202411954107 A CN202411954107 A CN 202411954107A CN 119818396 A CN119818396 A CN 119818396A
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Abstract
本发明提供了一种防晒剂包裹体及其制备方法与应用，属于化妆品技术领域。本发明防晒剂包裹体包括以下重量份的组分：防晒剂25‑55份、成膜剂3‑12份、多元醇5‑50份、增稠剂0.01‑1.5份、防腐剂0.05‑1份、中和剂0.01‑1.5份，其中成膜剂乙烯/丙烯酸共聚物和聚季铵盐。本发明通过乙烯/丙烯酸共聚物和聚季铵盐组成的成膜剂以及多元醇将防晒剂包裹起来，形成醇包油的结构，降低防晒产品的刺激性，提高防晒产品的防晒效果和防水效果。The invention provides a sunscreen inclusion and a preparation method and application thereof, belonging to the technical field of cosmetics. The sunscreen inclusion of the invention comprises the following components in parts by weight: 25-55 parts of sunscreen, 3-12 parts of film former, 5-50 parts of polyol, 0.01-1.5 parts of thickener, 0.05-1 parts of preservative, 0.01-1.5 parts of neutralizer, wherein the film formers are ethylene/acrylic acid copolymer and polyquaternium salt. The invention wraps the sunscreen by the film former composed of ethylene/acrylic acid copolymer and polyquaternium salt and the polyol to form an alcohol-in-oil structure, thereby reducing the irritation of the sunscreen product and improving the sunscreen effect and waterproof effect of the sunscreen product.
Description
Technical Field
The invention belongs to the technical field of cosmetics, and particularly relates to a sunscreen agent inclusion and a preparation method and application thereof.
Background
Along with the improvement of the living standard of people, the health attention of people to skin is higher and higher, and the daily protection schedule is also improved by the protection of ultraviolet rays, so that the sun protection product gradually becomes a necessity for facial care of people when going out. The existing sun-screening products on the market can be classified into organic sun-screening and physical sun-screening according to the types of sun-screening agents, and the action mechanisms of the sun-screening products are respectively ultraviolet absorption and physical light scattering, so that the damage of ultraviolet rays to skin is reduced.
At present, products on the market generally use chemical sunscreens and physical sunscreens, compound grease, emulsifying agents and the like, and prepare the sunscreens with different formulations (such as cream, spray and the like) through an emulsifying method. In order to improve the sun-screening effect of sun-screening products, more sun-screening agents are usually added into the sun-screening products, the excessive sun-screening agents cause skin allergy of consumers, and the skin is whitened, uneven, thick, sticky, glossy and the like after being smeared, and has poor air permeability and brings a burden to the skin.
Disclosure of Invention
The purpose of the present disclosure is to overcome the shortcomings of the prior art, and to provide a sunscreen agent inclusion, and a preparation method and application thereof, wherein the sunscreen agent inclusion can effectively improve the breathability, sunscreen effect, waterproof effect and anti-sand effect of a sunscreen cosmetic.
The technical scheme adopted by the invention is that the sunscreen agent inclusion comprises, by weight, 25-55 parts of a sunscreen agent, 3-12 parts of a film forming agent, 5-50 parts of a polyalcohol, 0.01-1.5 parts of a thickening agent, 0.05-1 part of a preservative and 0.01-1.5 parts of a neutralizing agent, wherein the film forming agent is ethylene/acrylic acid copolymer and polyquaternium.
In some embodiments, the mass ratio of the ethylene/acrylic acid copolymer to the polyquaternium is from 0.6 to 3.
In some embodiments, the film former further comprises at least one of polyvinylpyrrolidone, VP/VA copolymer, polyvinyl alcohol, PVP/VA/vinyl propionate copolymer, aqueous polyurethane, PPG-17/IPD/DMPA copolymer, acrylic/urethane copolymer.
In some embodiments, the film former is an ethylene/acrylic acid copolymer, a polyquaternium, and a polyvinylpyrrolidone, the mass of the polyvinylpyrrolidone being 5-14% of the total mass of the ethylene/acrylic acid copolymer, polyquaternium, and polyvinylpyrrolidone.
In some embodiments, the polyol is at least one of glycerol, ethylene glycol, propylene glycol, butylene glycol, dipropylene glycol, pentylene glycol, hexylene glycol, and methylpropylene glycol.
In some embodiments, the sunscreen is at least one of bis-ethylhexyloxyphenol methoxyphenyl triazine, butyl methoxydibenzoylmethane, diethyloxybenzoyl hexyl benzoate, 4-methylbenzylidene camphor, benzophenone-3, benzophenone-4, diethylhexylbutyryl triazone, ethylhexyl methoxycinnamate, isooctyl salicylate, ethylhexyl triazone, homosalate, isoamyl p-methoxycinnamate, octocrylene;
in some embodiments, the thickener is at least one of carbomers, acrylic acid (ester) copolymers, sodium polyacrylate, acrylic acid (ester) and C10-30 alkanol acrylate cross-linked polymers;
in some embodiments, the preservative is at least one of methylparaben, phenoxyethanol, chlorphenesin, propylparaben, sodium benzoate;
in some embodiments, the neutralizing agent is at least one of triethanolamine, aminomethylpropanol, sodium hydroxide, arginine, sodium citrate.
In a second aspect, there is provided a method of preparing the sunscreen inclusion comprising the steps of:
S1, dissolving a sun-screening agent at 75-85 ℃, and cooling to room temperature to obtain sun-screening liquid;
S2, homogenizing the film forming agent and the polyalcohol for 3-5min at a rotating speed of 3000-8000rpm, then adding the thickening agent, homogenizing for 3-5min at a rotating speed of 5000-10000rpm, then adding the sun-screening liquid, homogenizing for 3-5min at a rotating speed of 5000-10000rpm, finally adding the neutralizing agent, and homogenizing for 3-5min at a rotating speed of 6000-12000rpm to obtain the sun-screening agent inclusion.
In a third aspect, there is provided the use of the sunscreen inclusion in a sunscreen cosmetic.
In a fourth aspect, there is provided a sunscreen cosmetic comprising the sunscreen inclusion, wherein the sunscreen inclusion is 15-60% by mass of the sunscreen cosmetic.
In some embodiments, the cosmetic is a sun block and the sun block comprises, by mass, 15-60% of a sun block inclusion, 5-30% of grease, 0.1-5% of a skin conditioner, 0.1-20% of a humectant, 0.05-5% of a rheology regulator, 0.05-3% of an antioxidant, 0.1-0.6% of a preservative, 0.05-5% of a pH regulator, and the balance water.
Compared with the prior art, the anti-aging and anti-aging composition has the beneficial effects that the anti-aging composition wraps the sun-screening agent through the film forming agent formed by the ethylene/acrylic acid copolymer and the polyquaternium and the polyalcohol to form an alcohol-in-oil structure, so that on one hand, the direct contact between the sun-screening agent and skin is reduced in the smearing process of the sun-screening product, the irritation of the sun-screening product is reduced, and on the other hand, the alcohol-in-oil structure can effectively reduce the photodegradation of the organic sun-screening agent and improve the sun-screening effect and the waterproof effect of the sun-screening product. The polyquaternary ammonium salt can form a protective layer on the surface of the sun-screening agent, so that the dispersibility of the sun-screening agent is improved, and the sun-screening effect and the waterproof effect of sun-screening products are improved.
Detailed Description
To facilitate an understanding of the present disclosure, the present disclosure will be described more fully below. This disclosure may, however, be embodied in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
The term as used herein:
"by. Preparation method 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 term "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, and other elements are not excluded from the claim 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 a range of "1-5" is disclosed, the described range should be interpreted to include the ranges of "1-4", "1-3", "1-2 and 4-5", "1-3 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.
In these examples, the parts and percentages are by mass unless otherwise indicated.
"Parts by mass" means a basic unit of measurement showing the mass ratio of a plurality of components, and 1 part may be any unit mass, for example, 1g, 2.689g, or the like. If we say that the mass part of the A component is a part and the mass part of the B component is B part, the ratio a: B of the mass of the A component to the mass of the B component is expressed. Or the mass of the A component is aK, the mass of the B component is bK (K is any number and represents a multiple factor). It is not misunderstood that the sum of the parts by mass of all the components is not limited to 100 parts, unlike the parts by mass.
"And/or" is used to indicate that one or both of the illustrated cases may occur, e.g., a and/or B include (a and B) and (a or B).
In order to solve the problems of poor waterproof effect, poor sun-proof effect and poor sand-proof effect of sun-proof cosmetics in the prior art.
The invention provides a sun-screening agent inclusion, which comprises the following components, by weight, 25-55 parts of sun-screening agent, 3-12 parts of film forming agent, 5-50 parts of polyol, 0.01-1.5 parts of thickener, 0.05-1 part of preservative and 0.01-1.5 parts of neutralizer, wherein the film forming agent comprises ethylene/acrylic acid copolymer and polyquaternium.
As in the various embodiments, the parts by weight of the sunscreen may be, but are not limited to, 25 parts, 28 parts, 30 parts, 32 parts, 35 parts, 37 parts, 40 parts, 43 parts, 45 parts, 48 parts, 50 parts, 53 parts, 55 parts;
As in the various embodiments, the film former may be, but is not limited to, 3 parts, 4 parts, 5 parts, 6 parts, 7 parts, 8 parts, 9 parts, 10 parts, 11 parts, 12 parts by weight;
As in the various embodiments, the polyol may be, but is not limited to, 5 parts, 10 parts, 15 parts, 20 parts, 25 parts, 30 parts, 35 parts, 40 parts, 45 parts, 50 parts by weight;
As in the various embodiments, the weight parts of the thickener may be, but are not limited to, 0.01 parts, 0.05 parts, 0.1 parts, 0.3 parts, 0.5 parts, 0.7 parts, 0.9 parts, 1.1 parts, 1.3 parts, 1.5 parts;
as in the various embodiments, the preservative may be, but is not limited to, 0.05 parts, 0.1 parts, 0.2 parts, 0.4 parts, 0.6 parts, 0.8 parts, 1 part by weight;
As in the various embodiments, the neutralizing agent may be, but is not limited to, 0.01 parts, 0.05 parts, 0.1 parts, 0.3 parts, 0.5 parts, 0.7 parts, 0.9 parts, 1.1 parts, 1.3 parts, 1.5 parts.
According to the invention, the sun-screening agent is wrapped by the film forming agent composed of the ethylene/acrylic acid copolymer and the polyquaternium and the polyalcohol to form an oil-in-alcohol structure, so that on one hand, the direct contact between the sun-screening agent and skin is reduced in the smearing process of the sun-screening product, thereby reducing the irritation of the sun-screening product, and on the other hand, the oil-in-alcohol structure can effectively reduce the photodegradation of the organic sun-screening agent and improve the sun-screening effect and the waterproof effect of the sun-screening product. The polyquaternary ammonium salt can form a protective layer on the surface of the sun-screening agent, so that the dispersibility of the sun-screening agent is improved, and the sun-screening effect and the waterproof effect of sun-screening products are improved.
In some embodiments, the mass ratio of the ethylene/acrylic acid copolymer to the polyquaternium is from 0.6 to 3, such as, but not limited to, 0.6, 1, 1.4, 1.8, 2.2, 2.6, 3.
In the invention, when the mass ratio of the ethylene/acrylic acid copolymer to the polyquaternium is within the above range, the sun-screening effect and the water-proof effect of the sun-screening product can be effectively improved.
Illustratively, the polyquaternium may be at least one selected from polyquaternium-16, polyquaternium-28, polyquaternium-11, polyquaternium-69.
In some embodiments, the film former further comprises at least one of polyvinylpyrrolidone, VP/VA copolymer, polyvinyl alcohol, PVP/VA/vinyl propionate copolymer, aqueous polyurethane, PPG-17/IPD/DMPA copolymer, acrylic/urethane copolymer.
In the invention, when the film forming material further comprises the components, the air permeability, the sun-proof effect and the water-proof effect of the sun-proof product can be further improved.
Illustratively, the aqueous polyurethane may be selected from at least one of polyurethane-2, polyurethane-11, polyurethane-35.
In some embodiments, the film former is an ethylene/acrylic acid copolymer, a polyquaternium and a polyvinylpyrrolidone, the mass of which is 5-14% of the total mass of the ethylene/acrylic acid copolymer, polyquaternium and polyvinylpyrrolidone, such as, but not limited to, 5%, 7%, 9%, 11%, 13%, 15%.
In the present invention, in the above preferred range, the sun-screening product containing the inclusion of the sun-screening agent has a better sun-screening effect and water-proof effect.
In some embodiments, the polyol is at least one of glycerol, ethylene glycol, propylene glycol, butylene glycol, dipropylene glycol, pentylene glycol, hexylene glycol, and methylpropylene glycol.
In some embodiments, the sunscreen is at least one of bis-ethylhexyloxyphenol methoxyphenyl triazine, butyl methoxydibenzoylmethane, diethyloxybenzoyl hexyl benzoate, 4-methylbenzylidene camphor, benzophenone-3, benzophenone-4, diethylhexylbutyryl triazone, ethylhexyl methoxycinnamate, isooctyl salicylate, ethylhexyl triazone, homosalate, isoamyl p-methoxycinnamate, octocrylene.
In some embodiments, the thickener is at least one of carbomers, acrylic acid (ester) copolymers, sodium polyacrylate, acrylic acid (ester) and C10-30 alkanol acrylate cross-linked polymers.
In some embodiments, the preservative is at least one of methylparaben, phenoxyethanol, chlorphenesin, propylparaben, sodium benzoate.
In some embodiments, the neutralizing agent is at least one of triethanolamine, aminomethylpropanol, sodium hydroxide, arginine, sodium citrate.
In a second aspect, there is provided a method of preparing the sunscreen inclusion comprising the steps of:
S1, dissolving a sun-screening agent at 75-85 ℃, and cooling to room temperature to obtain sun-screening liquid;
S2, homogenizing the film forming agent and the polyalcohol for 3-5min at a rotating speed of 3000-8000rpm, then adding the thickening agent, homogenizing for 3-5min at a rotating speed of 5000-10000rpm, then adding the sun-screening liquid, homogenizing for 3-5min at a rotating speed of 5000-10000rpm, finally adding the neutralizing agent, and homogenizing for 3-5min at a rotating speed of 6000-12000rpm to obtain the sun-screening agent inclusion.
According to the invention, the sunscreen agent inclusion is prepared through a specific feeding sequence, so that the waterproof effect and the sunscreen effect of the sunscreen product are better.
In a third aspect, there is provided the use of the sunscreen inclusion in a sunscreen cosmetic.
In a fourth aspect, there is provided a sunscreen cosmetic comprising said sunscreen inclusion, said sunscreen inclusion being present in the sunscreen cosmetic in an amount of 15-60% by mass, such as, but not limited to, 15%, 17%, 20%, 23%, 25%, 30%, 35%, 40%, 45%, 50%, 55%, 58%, 60%.
The sunscreen cosmetic prepared by using the sunscreen inclusion of the present invention may be prepared by mixing the sunscreen inclusion and optionally raw materials for the sunscreen cosmetic. As optional raw materials for sunscreen cosmetics, components such as oils, surfactants, moisturizers, higher alcohols, metal ion chelators, natural and synthetic polymers, water-soluble and oil-soluble polymers, ultraviolet screening agents, various extracts, colorants including pigments and organic dyes, preservatives, antioxidants, dyes, thickeners, pH adjusters, perfumes, cooling agents, antiperspirants, fungicides, skin activators and various powders may be used. Mixtures of these components can be prepared in various forms, such as lotions, creams, pastes, sticks, emulsions.
In some embodiments, the cosmetic is a sun block and the sun block comprises, by mass, 15-60% of a sun block inclusion, 5-30% of grease, 0.1-5% of a skin conditioner, 0.1-20% of a humectant, 0.05-5% of a rheology regulator, 0.05-3% of an antioxidant, 0.1-0.6% of a preservative, 0.05-5% of a pH regulator, and the balance water.
As in the various embodiments, the parts by weight of the sunscreen package may be, but are not limited to, 15%, 20%, 23%, 25%, 30%, 35%, 40%, 45%, 50%, 55%, 58%, 60%.
As in the various embodiments, the percentage by mass of the grease may be, but is not limited to, 5%, 7%, 9%, 11%, 13%, 15%, 17%, 19%, 21%, 23%, 25%, 28%, 30%;
As in the various embodiments, the skin conditioning agent may be, but is not limited to, 0.1%, 0.5%, 1%, 1.5%, 2%, 2.5%, 3%, 3.5%, 4%, 4.5%, 5% by mass;
As in the various embodiments, the humectant may be, but is not limited to, 0.1%, 1%, 2%, 4%, 6%, 8%, 10%, 12%, 14%, 16%, 18%, 20% by mass;
As in the various embodiments, the rheology modifier may be, but is not limited to, 0.05%, 0.1%, 0.5%, 1%, 1.5%, 2%, 2.5%, 3%, 3.5%, 4%, 4.5%, 5%;
As in the various embodiments, the antioxidant may be, but is not limited to, 0.05%, 0.1%, 0.5%, 1%, 1.5%, 2%, 2.5%, 3% by mass;
as in the various embodiments, the preservative may be, but is not limited to, 0.1%, 0.15%, 0.2%, 0.25%, 0.3%, 0.35%, 0.4%, 0.45%, 0.5%, 0.55%, 0.6% by mass;
As in the various embodiments, the pH adjuster may be, but is not limited to, 0.05%, 0.1%, 0.5%, 1%, 1.5%, 2%, 2.5%, 3%, 3.5%, 4%, 4.5%, 5%;
In various embodiments, the grease is one or more of ethylhexyl palmitate, dioctyl carbonate, hydrogenated polyisobutene, butylene glycol cocoate, propyl heptyl octoate, isopropyl palmitate, isostearyl isostearate, C12-13 alcohol malate, caprylic/capric triglyceride, propylene glycol dicaprylate/dicaprate, tri (ethylhexanoate) glycerol, hydrogenated polydecene, diisostearyl malate, isoamyl laurate, C12-15 alcohol benzoate, isohexadecane, cocoyl-caprylate/caprate, butyl octanol salicylate, isopropyl lauroyl sarcosinate, polydimethylsiloxane.
As in the various embodiments, the skin conditioning agent is one or more of allantoin, sodium hyaluronate, linolenic acid, nicotinamide, chitosan, panthenol, beta-glucan, inositol, sodium hyaluronate, and hydroxyasiaticoside.
In various embodiments, the humectant is one or more of polyethylene glycol-8, betaine, trehalose, sodium polyglutamate, methyl glucitol polyether-10, methyl glucitol polyether-20, PPG-24-glycerol polyether-24, PEG/PPG-17/6 copolymer.
As in the various embodiments, the rheology modifier is one or more of xanthan gum, ammonium acryloyldimethyl taurate/VP copolymer, acrylic acid (ester) copolymer, carbomer, sodium carbomer, acrylic acid (ester) type/C10-30 alkyl alcohol acrylate cross-linked polymer, acrylic acid (ester) type/behenate-25 methacrylate copolymer, acrylic acid (ester) type/palmitoleic polyether-25 acrylate copolymer, PEG-240/HDI copolymer bis-decyltetradecylether-20 ether, acrylic acid (ester) type/vinyl isodecanoate cross-linked polymer, ammonium acryloyldimethyl taurate/behenate-25 methacrylate cross-linked polymer, hydroxyethyl acrylate/sodium acryloyldimethyl taurate copolymer, sodium polyacrylate, hydroxyethyl cellulose, polyacrylate cross-linked polymer-6.
As in the various embodiments, the antioxidant is one or more of p-hydroxyacetophenone, tocopheryl acetate, butylated hydroxytoluene, pentaerythritol tetrakis (bis-t-butylhydroxyhydrocinnamate), t-butylhydroquinone.
In various embodiments, the preservative is one or more of methylparaben, phenoxyethanol, chlorophenylglycol, propylparaben, DMDM hydantoin, and sodium benzoate.
In various embodiments, the pH adjuster is one or more of triethanolamine, aminomethylpropanol, sodium hydroxide, arginine, sodium citrate, and tromethamine.
The cosmetic of the present invention may be prepared by any suitable method known in the art. For example, the preparation may be carried out according to a process known in the art using equipment such as a dissolution tank, an emulsifying pot, a disperser, a transfer pump, etc., which are commonly used in the cosmetic field. For example, water-soluble substances can be put into an aqueous-phase dissolution kettle, oil-soluble substances (such as sunscreens and grease) can be put into an oil-phase dissolution kettle, the temperatures of the two kettles are respectively heated to about 80 ℃, wherein the raw materials which are easy to agglomerate can be pre-dispersed by a disperser, for example, powder-containing substances (such as zinc oxide and titanium dioxide) can be dispersed by a proper solvent and a dispersing agent, then homogenized for 5-10min, the oil phase is added, homogenized for 5-10min again, after homogenization is finished, the oil phase and the water phase are delivered into an emulsifying pot for homogenization and emulsification for about 5-15min, after the emulsification is finished, the temperature of the raw materials is reduced to normal temperature, essence, preservative and the like are optionally added, the pH of the products is adjusted according to requirements, and after relevant detection indexes are qualified, the raw materials can be filled.
The above preparation process is merely exemplary, and those skilled in the art can increase or decrease or adjust the preparation according to the requirements of the preparation formulation, thereby preparing various preparation formulations such as spray, emulsion, gel/jelly, cream, air cushion/foundation, and the like.
The sunscreen package, the preparation method and the application thereof provided by the present invention are described in detail below with reference to examples for further illustrating the present invention, but they should not be construed as limiting the scope of the present invention.
Examples 1 to 14 and comparative examples 1 to 2
Examples 1-14 and comparative examples 1-2 of the present invention provide a sunscreen inclusion having the composition shown in tables 1 and 2;
The sunscreen encapsulates of examples 1-14 and comparative examples 1-2 were prepared by:
S1, dissolving a sun-screening agent at the temperature of 80 ℃, and cooling to room temperature to obtain sun-screening liquid;
S2, homogenizing the film forming agent and the polyalcohol for 4min at a rotation speed of 5000rpm, adding the thickening agent, homogenizing for 4min at a rotation speed of 8000rpm, adding the sun-screening liquid, homogenizing for 5min at a rotation speed of 8000rpm, finally adding the neutralizing agent, and homogenizing for 3min at a rotation speed of 10000rpm to obtain the sun-screening agent inclusion.
TABLE 1
TABLE 2
Comparative example 3
The composition of the sunscreen inclusion of this comparative example was the same as in example 1, and the preparation method of the sunscreen inclusion of this comparative example was:
S1, dissolving a sun-screening agent at the temperature of 80 ℃, and cooling to room temperature to obtain sun-screening liquid;
s2, homogenizing the film forming agent and the polyalcohol for 4min at a rotation speed of 5000rpm, adding the sun-screening liquid, homogenizing for 4min at a rotation speed of 8000rpm, adding the thickening agent, homogenizing for 5min at a rotation speed of 8000rpm, finally adding the neutralizing agent, and homogenizing for 3min at a rotation speed of 10000rpm to obtain the sun-screening agent inclusion.
Comparative example 4
The composition of the sunscreen inclusion of this comparative example was the same as in example 1, and the preparation method of the sunscreen inclusion of this comparative example was:
S1, dissolving a sun-screening agent at the temperature of 80 ℃, and cooling to room temperature to obtain sun-screening liquid;
S2, homogenizing the film forming agent and the polyalcohol for 4min at a rotation speed of 5000rpm, adding the neutralizing agent, homogenizing for 4min at a rotation speed of 8000rpm, adding the sun-screening liquid, homogenizing for 5min at a rotation speed of 8000rpm, finally adding the thickening agent, and homogenizing for 3min at a rotation speed of 10000rpm to obtain the sun-screening agent inclusion.
Comparative example 5
The composition of the sunscreen inclusion of this comparative example was the same as in example 1, and the preparation method of the sunscreen inclusion of this comparative example was:
S1, dissolving a sun-screening agent at the temperature of 80 ℃, and cooling to room temperature to obtain sun-screening liquid;
S2, homogenizing the film forming agent and the polyalcohol for 4min at 5000rpm, adding the neutralizing agent, homogenizing for 4min at 8000rpm, adding the thickening agent, homogenizing for 5min at 8000rpm, adding the sun-screening liquid, and homogenizing for 3min at 10000rpm to obtain the sun-screening agent inclusion comparative example 6
The composition of the sunscreen inclusion of this comparative example was the same as in example 1, and the preparation method of the sunscreen inclusion of this comparative example was:
S1, dissolving a sun-screening agent at the temperature of 80 ℃, and cooling to room temperature to obtain sun-screening liquid;
and S2, homogenizing the film forming agent and the polyalcohol for 4min at a rotation speed of 5000rpm, then adding the thickening agent, the sun-screening liquid and the neutralizing agent, and homogenizing for 12min at a rotation speed of 8000rpm to obtain the sun-screening agent inclusion.
Comparative example 7
The composition of the sunscreen inclusion of this comparative example was the same as in example 1, and the preparation method of the sunscreen inclusion of this comparative example was:
S1, dissolving a sun-screening agent at the temperature of 80 ℃, and cooling to room temperature to obtain sun-screening liquid;
and S2, homogenizing the film forming agent, the polyalcohol, the thickening agent and the sun-screening liquid for 13min at the rotating speed of 8000rpm, adding the neutralizing agent, and homogenizing for 3min at the rotating speed of 10000rpm to obtain the sun-screening agent inclusion.
Application examples 1 to 16, comparative application examples 1 to 7 and blank application examples
The invention provides a sun-screening emulsion, wherein the components (mass percent) of the sun-screening emulsion are shown in a table 3, two sun-screening agent inclusion bodies used in application examples 1-14 are sun-screening agent inclusion bodies prepared in examples 1-14 respectively, and sun-screening agent inclusion bodies used in comparison application examples 1-7 are sun-screening agent inclusion bodies prepared in comparison examples 1-7 respectively, and sun-screening agent inclusion bodies used in application examples 15-16 are sun-screening agent inclusion bodies prepared in example 1;
the preparation methods of the sun protection milk of the application examples, the comparative application examples and the blank application examples are as follows:
Preparing water phase, namely uniformly mixing water, skin conditioning agent, humectant, rheology regulator and preservative to prepare water phase;
preparing an oil phase by uniformly mixing grease and an antioxidant;
preparing an emulsion, namely heating the oil phase and the water phase to 75-85 ℃ respectively, adding the oil phase into the water phase, and emulsifying and homogenizing to obtain the emulsion;
The preparation of the oil-in-water sun-screening emulsion comprises the steps of cooling the emulsion to room temperature, adding the sun-screening agent inclusion and the pH regulator, and uniformly stirring to obtain the sun-screening emulsion.
TABLE 3 Table 3
Effect example 1
The skin feel, the sun-proof effect and the water-resistant effect of the sun-proof milk obtained by the application example, the comparative application example and the blank application example are tested in the effect example.
The skin feel scoring test method is that 30 volunteers are recruited according to the sensory evaluation rule of T/GDCA 003-2020T/GDCA cosmetics, and the skin feel scoring test method is carried out according to 5 dimensions of the coating difficulty level (0-5 points correspond to difficult coating to easy coating), the water feel (0-5 points correspond to weak water feel to strong water feel), the skin smoothness level (0-5 points correspond to unsmooth skin), the skin hand sticking level (0-5 points correspond to sticky hands to non-sticky hands) and the total absorption speed (0-5 points correspond to slow to fast) respectively, wherein the comprehensive score is the average value of 5 points, and the higher the score is, the better the skin feel is indicated.
The testing method of the sun protection effect comprises the steps of referring to an in vitro testing method of the sun protection effect of the SN/T5150-2019 sun protection cosmetics UVA, and testing the prepared sun protection emulsion on UV-2000S equipment;
the calculation formula of the SPF is as follows:
In the formula 1, E (lambda) -erythema effect coefficient;
i (lambda) -the radiation intensity of the UV light source;
a0-average monochromatic absorbance of each sample before UV irradiation;
d (λ) -the step size of the wavelength (nm).
The calculation formula of PA is:
in formula 2, P (λ) -PPD spectral index;
I (λ) -the spectral irradiance of the UVA light source;
A0—the absorbance of monochromatic light of the slide was tested prior to UV exposure;
C, adjusting coefficients;
dλ—measurement step size (nm).
The waterproof effect test method comprises the steps of simulating a waterproof test experiment by referring to a cosmetic safety technical specification (2015 edition) waterproof performance test method, placing a sample to be tested in a rotary bathtub, maintaining the water temperature at 25 ℃, and testing the sun protection index by referring to an in vitro SN/T5150-2019 sun protection effect test method of sun protection cosmetics.
The test results are shown in Table 4.
TABLE 4 Table 4
From the experimental data in Table 4, the sun-proof SPF of the sun-proof product containing the inclusion of the sun-proof agent is more than or equal to 25.3, the sun-proof PA is more than or equal to 5.6, the water-proof SPF is more than or equal to 21.0, and the water-proof PA is more than or equal to 4.2, which indicates that the sun-proof effect and the water-proof effect of the inclusion of the sun-proof agent are good.
As can be seen from comparative application example 1 and application examples 4 to 7, when the mass ratio of the ethylene/acrylic acid copolymer to the polyquaternium is 0.6 to 3, the sun-screening SPF of the sun-screening product is not less than 46.2, the sun-screening PA is not less than 11.8, the water-proof SPF is not less than 39.3, and the water-proof PA is not less than 9.6, which indicates that the sun-screening effect and the water-proof effect of the sun-screening agent inclusion are better when the mass ratio of the ethylene/acrylic acid copolymer to the polyquaternium is 0.6 to 3.
As is clear from comparative application examples 1 and 8-14, when the film agent is ethylene/acrylic acid copolymer, polyquaternium and polyvinylpyrrolidone, the sun-proof SPF of the sun-proof product is not less than 48.3, the sun-proof PA is not less than 12.3, the water-proof SPF is not less than 41.6, the water-proof PA is not less than 10.6, when the film agent is ethylene/acrylic acid copolymer, polyquaternium and polyvinylpyrrolidone, a sun-proof agent inclusion with better sun-proof effect and water-proof effect can be obtained, when the mass of polyvinylpyrrolidone is 5-15% of the total mass of ethylene/acrylic acid copolymer, polyquaternium and polyvinylpyrrolidone, the sun-proof SPF of the sun-proof product is not less than 49.9, the sun-proof PA is not less than 12.6, the water-proof PA is not less than 43.5-15% of the total mass of the polyethylene pyrrolidone is ethylene/acrylic acid copolymer, polyquaternium and polyvinylpyrrolidone, the sun-proof effect and water-proof effect of the sun-proof agent inclusion is better.
As can be seen from comparative application examples 1 and 1-2, the absence of any one of the ethylene/acrylic acid copolymer and the polyquaternium, the sun-screening SPF of the sun-screening product is less than or equal to 40.8, the sun-screening PA is less than or equal to 9.5, the water-proof SPF is less than or equal to 29.3, and the water-proof PA is less than or equal to 7.1, which indicates that the ethylene/acrylic acid copolymer and the polyquaternium synergistically increase the sun-screening effect and the water-proof effect of the sun-screening agent inclusion.
As can be seen from comparative application example 1 and comparative application examples 3 to 7, in the preparation of the sunscreen inclusion, the respective components were not added in accordance with the specific order of the present invention or the process conditions were not within the scope of the present invention, and the sunscreen effect and the water-proof effect of the obtained sunscreen inclusion were significantly reduced.
Finally, it should be noted that the above embodiments illustrate the technical solution of the present disclosure and not limit the scope of the present disclosure, and although the present disclosure has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solution of the present disclosure may be modified or equally substituted without departing from the spirit and scope of the technical solution of the present disclosure.
Claims (10)
1. The sun-screening agent inclusion is characterized by comprising, by weight, 25-55 parts of sun-screening agent, 3-12 parts of film forming agent, 5-50 parts of polyol, 0.01-1.5 parts of thickener, 0.05-1 part of preservative and 0.01-1.5 parts of neutralizer, wherein the film forming agent comprises ethylene/acrylic acid copolymer and polyquaternium.
2. A sunscreen package according to claim 1 wherein said ethylene/acrylic acid copolymer and polyquaternium are present in a mass ratio of from 0.6 to 3.
3. The sunscreen package of claim 1 wherein the film former further comprises at least one of polyvinylpyrrolidone, VP/VA copolymer, polyvinyl alcohol, PVP/VA/vinyl propionate copolymer, aqueous polyurethane, PPG-17/IPD/DMPA copolymer, acrylic/urethane copolymer.
4. A sunscreen package according to claim 3 wherein said film forming agent is an ethylene/acrylic acid copolymer, a polyquaternium and a polyvinylpyrrolidone, said polyvinylpyrrolidone having a mass of from 5% to 15% of the total mass of ethylene/acrylic acid copolymer, polyquaternium and polyvinylpyrrolidone.
5. The sunscreen package of claim 1 wherein the polyol is at least one of glycerol, ethylene glycol, propylene glycol, butylene glycol, dipropylene glycol, pentylene glycol, hexylene glycol, and methylpropylene glycol.
6. The sunscreen package of claim 1 wherein the sunscreen is at least one of bis-ethylhexyloxyphenol methoxyphenyl triazine, butyl methoxydibenzoylmethane, diethylhydroxybenzoyl hexyl benzoate, 4-methylbenzylidene camphor, benzophenone-3, benzophenone-4, diethylhexylbutyryl triazinone, ethylhexyl methoxycinnamate, isooctyl salicylate, ethylhexyl triazinone, homosalate, isoamyl p-methoxycinnamate, octocrylene;
And/or the thickener is at least one of carbomer, acrylic acid (ester) copolymer, sodium polyacrylate and acrylic acid (ester) C10-30 alkanol acrylate cross-linked polymer;
And/or the preservative is at least one of methylparaben, phenoxyethanol, chlorphenesin, propylparaben and sodium benzoate;
and/or the neutralizing agent is at least one of triethanolamine, aminomethylpropanol, sodium hydroxide, arginine and sodium citrate.
7. A method of preparing a sunscreen package according to any one of claims 1 to 6, comprising the steps of:
S1, dissolving a sun-screening agent at 75-85 ℃, and cooling to room temperature to obtain sun-screening liquid;
S2, homogenizing the film forming agent and the polyalcohol for 3-5min at a rotating speed of 3000-8000rpm, then adding the thickening agent, homogenizing for 3-5min at a rotating speed of 5000-10000rpm, then adding the sun-screening liquid, homogenizing for 3-5min at a rotating speed of 5000-10000rpm, finally adding the neutralizing agent, and homogenizing for 3-5min at a rotating speed of 6000-12000rpm to obtain the sun-screening agent inclusion.
8. Use of a sunscreen inclusion as claimed in any one of claims 1 to 6 in a sunscreen cosmetic.
9. A sunscreen cosmetic comprising the sunscreen package according to any one of claims 1 to 6, wherein the sunscreen package is 15 to 60% by mass of the sunscreen cosmetic.
10. The sunscreen cosmetic according to claim 9, wherein the cosmetic is a sunscreen emulsion, and the sunscreen emulsion comprises, by mass, 15-60% of a sunscreen inclusion, 5-30% of an oil, 0.1-5% of a skin conditioner, 0.1-20% of a humectant, 0.05-5% of a rheology regulator, 0.05-3% of an antioxidant, 0.1-0.6% of a preservative, 0.05-5% of a pH regulator, and the balance of water.
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