CN111184657A

CN111184657A - Moisturizing isolation emulsion and preparation method thereof

Info

Publication number: CN111184657A
Application number: CN202010112707.7A
Authority: CN
Inventors: 张凤娇; 李嘉琪
Original assignee: Guangdong Bio Tech Ltd Mi Shang
Current assignee: Guangdong Bio Tech Ltd Mi Shang
Priority date: 2020-02-24
Filing date: 2020-02-24
Publication date: 2020-05-22

Abstract

The invention discloses a moisturizing isolation milk and a preparation method thereof. The moisturizing isolation milk comprises the following components in percentage by mass: 8.00-16.00% of humectant, 0.20-0.50% of stabilizer, 0.20-0.40% of neutralizer, 1.70-8.00% of colorant, 3.00-7.00% of neopentyl glycol dioate, 3.20-10.00% of emulsifier, 1.00-5.00% of thickener, 2.00-5.00% of sun-screening agent, 8.00-16.00% of emollient, 0.30-0.60% of film forming agent, 2.50-7.00% of skin feel regulator, 0.50-1.00% of preservative and the balance of water. The moisturizing isolation emulsion does not contain additives and benzoate preservatives, is soft, smooth, light and dry in skin feel, does not induce acne, is non-toxic and non-irritant, can effectively brighten skin color for a long time, and has a sun-screening function.

Description

Moisturizing isolation emulsion and preparation method thereof

Technical Field

The invention relates to the technical field of daily cosmetics, in particular to moisturizing isolation milk and a preparation method thereof.

Background

The sun screen is an important skin care product for protecting skin, and is mainly used for protecting the skin and relieving the irritation of adverse factors to the skin. The sunscreen cream was originally a low SPF sunscreen cream containing a sunscreen agent and thus having a function of screening ultraviolet rays. With the development of the sun screen, the sun screen also has the function of decorating skin color, so that the sun screen not only can be used as sun screen, but also can be used as foundation, and integrates various effects.

Today, people pay more and more attention to skin care, the sun screen cream with sun-screening, concealing and whitening effects becomes an enthusiastic skin care choice. However, the existing sun screen cream still cannot be effectively coordinated between sun-screening effect, concealing effect and skin feeling after being applied on the skin. The conventional base cream usually uses mineral oil and fat, and a large amount of the mineral oil is added to effectively disperse the sunscreen agent and the concealer component, so that the base cream has a good waterproof effect. Thus, although the sun-screening and flaw-covering effects and the waterproof effect can be better achieved, the skin is poor in skin smearing sense, the skin smearing sense is sticky, and the use experience sense is poor; moreover, after the body lotion is coated, a corresponding isolation and protection film layer can be formed on the skin of a human body, so that the skin of the human body is isolated and protected, and acne is easily induced due to high oil content.

In addition, the makeup base is a cosmetic product directly coated on human skin, and is particularly used on human face skin, so that high requirements are provided for the skin softness of the makeup base. However, many existing sun screen creams are added with benzoate preservatives and additives, and irritation and damage to human skin are inevitable in the using process.

Disclosure of Invention

The invention aims to provide moisturizing isolation milk aiming at the defects in the prior art. The moisturizing isolation emulsion does not contain additives and benzoate preservatives, is soft, smooth, light and dry in skin feel, does not induce acne, is non-toxic and non-irritant, can effectively brighten skin color for a long time, and has a sun-screening function.

The invention also aims to provide a method for preparing the moisturizing isolation milk.

The purpose of the invention is realized by the following technical scheme.

The moisturizing isolation milk comprises the following components in percentage by mass:

8.00-16.00% of humectant, 0.20-0.50% of stabilizer, 0.20-0.40% of neutralizer, 1.70-8.00% of colorant, 3.00-7.00% of neopentyl glycol dioate, 3.20-10.00% of emulsifier, 1.00-5.00% of thickener, 2.00-5.00% of sun-screening agent, 8.00-16.00% of emollient, 0.30-0.60% of film forming agent, 2.50-7.00% of skin feel regulator, 0.50-1.00% of preservative and the balance of water; the film forming agent is trimethyl pentanediol/adipic acid/glycerol cross-linked polymer.

Preferably, the composition comprises the following components in percentage by mass:

10.00-12.00% of humectant, 0.30-0.50% of stabilizer, 0.20-0.30% of neutralizer, 4.50-7.00% of colorant, 3.00-5.00% of neopentyl glycol dioate, 3.50-5.00% of emulsifier, 3.00-4.00% of thickener, 2.00-3.00% of sun-screening agent, 12.00-13.00% of emollient, 0.30-0.50% of film forming agent, 3.00-5.50% of skin feel regulator, 0.50-0.60% of preservative and the balance of water; the film forming agent is trimethyl pentanediol/adipic acid/glycerol cross-linked polymer.

Preferably, the humectant comprises glycerin and propylene glycol in a mass ratio of 5-8: 3-8.

Preferably, the stabilizer is magnesium sulfate.

Preferably, the neutralizing agent is sodium citrate.

Preferably, the sunscreen agent is ethylhexyl methoxycinnamate.

Preferably, the colorant comprises, by mass, 1 to 4: 0.5-3: 0.2-1 of a titanium dioxide & lauroyl lysine & aluminum hydroxide composition, an ultramarine & triethoxycaprylylsilane composition, and a titanium dioxide & triethoxycaprylylsilane composition.

More preferably, the titanium dioxide & lauroyl lysine & aluminum hydroxide composition is a compound of titanium dioxide and lauroyl lysine and aluminum hydroxide in a mass ratio of 7-8:1.5-2: 0.5-1.

More preferably, the ultramarine blue & triethoxyoctylsilane composition is a compound of ultramarine blue and triethoxyoctylsilane in a mass ratio of 7-8: 2-3.

More preferably, the titanium dioxide & triethoxyoctylsilane composition is a compound of titanium dioxide and triethoxyoctylsilane in a mass ratio of 7-9: 1-3.

Preferably, the emulsifier comprises lauryl PEG-9 dimethiconoethyl dimethicone, dimethicone PEG-10/15 crosspolymer, and dimethicone/polyglycerin-3 crosspolymer in a mass ratio of 2-6:1-3: 0.2-1.

Preferably, the thickener is a cyclopentadimethylsiloxane & disteardimonium hectorite & propylene carbonate composition.

More preferably, in the cyclo penta dimethyl siloxane & distearyl dimethyl ammonium hectorite & propylene carbonate composition, the mass ratio of the cyclo penta dimethyl siloxane, the distearyl dimethyl ammonium hectorite and the propylene carbonate is 6-8:1-2: 1-2.

Preferably, the emollient comprises a dimethicone and cyclopentasiloxane & cyclohexasiloxane composition in a mass ratio of 2-6: 6-10.

More preferably, in the cyclopentadecyldimethylsiloxane and cyclohexasiloxane composition, the mass ratio of cyclopentadecyldimethylsiloxane to cyclohexasiloxane is 3-4: 1-2.

Preferably, the skin feel modifier comprises polymethyl methacrylate and vinyl polydimethylsiloxane/polymethylsiloxane silsesquioxane cross-linked polymer in a mass ratio of 0.5-1: 2-6.

Preferably, the preservative is an octylene glycol & hexylene glycol & ethylhexylglycerin & phenoxyethanol composition.

More preferably, in the composition of the caprylyl glycol & hexylene glycol & ethylhexyl glycerin & phenoxyethanol, the mass ratio of the caprylyl glycol, the hexylene glycol, the ethylhexyl glycerin and the phenoxyethanol is 2-3:3:1-2: 3.

The method for preparing the moisturizing and isolating milk comprises the following steps:

(1) sequentially adding the solvent, the humectant, the stabilizer and the neutralizer into a water phase container according to the mass percentage, and heating to 70-75 ℃; continuously stirring and heating to 85-90 ℃, and keeping the temperature for 15-20 minutes;

(2) weighing the colorant according to the mass percentage, wetting the colorant with the neopentyl glycol dibasic acid ester, primarily mixing the colorant uniformly, and grinding the mixture into slurry for later use;

(3) weighing the emulsifier, the thickener, the sun-screening agent and the emollient according to the mass percentage, adding the weighed materials into an emulsion reaction container, heating to 70-75 ℃, and stirring until the materials are completely dissolved uniformly;

(4) slowly pumping the water phase in the water phase container after the heat preservation in the step (1) is finished into the emulsification reactor under the stirring of 35-40HZ, maintaining vacuum after pumping, and continuously stirring for 10-12 min; then stirring homogeneously at 2900-;

(5) sequentially adding the film forming agent, the skin feel conditioning agent and the preservative according to the mass percentage, and stirring for 3-5min at 2200-2200rpm, and stirring for defoaming at 20-25 HZ;

(6) and cooling to below 40 ℃, and discharging to obtain the moisturizing isolation milk.

Compared with the prior art, the invention has the following advantages and beneficial effects:

(1) the moisturizing isolation milk provided by the invention adopts the plant/herbal oil to effectively disperse the sunscreen agent and the concealer component, moisten and moisturize the skin, has a good waterproof effect, is soft and smooth in skin feel, light and dry in use, moisturizes and moisturizes, does not induce acne, and is excellent in use experience.

(2) The moisturizing and isolating milk contains the sunscreen component and the concealer component, has a good concealer effect, can effectively brighten skin color for a long time, and also has a sunscreen function.

(3) The moisture-keeping isolation milk does not contain additives and benzoate preservatives, is mild in use process, is non-toxic and non-irritant, and does not damage human skin.

Detailed Description

The technical solutions of the present invention are further described in detail with reference to specific examples, which are provided for the purpose of making the disclosure of the present invention more thorough and complete, and the scope of protection and the implementation of the present invention are not limited thereto. Also, 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. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. In the specific examples, unless otherwise specified, the technical means used are in accordance with the conventional means employed by those skilled in the art of the present invention.

In a specific embodiment, the moisturizing isolation milk comprises the following components in percentage by mass: 8.00-16.00% of humectant, 0.20-0.50% of stabilizer, 0.20-0.40% of neutralizer, 1.70-8.00% of colorant, 3.00-7.00% of neopentyl glycol dioate, 3.20-10.00% of emulsifier, 1.00-5.00% of thickener, 2.00-5.00% of sun-screening agent, 8.00-16.00% of emollient, 0.30-0.60% of film forming agent, 2.50-7.00% of skin feel regulator, 0.50-1.00% of preservative and the balance of water.

In a specific preferred embodiment, the following raw materials are used, and the raw materials are commercially available:

among them, neopentyl glycol dibasic acid ester (LexFeel)^TM7) The emulsion is smooth, light and dry to smear, has good compatibility with sun-screening agents and silicone oil, and can improve the stability of the whole emulsion.

In a preferred embodiment, the humectant comprises 5.00-8.00% glycerin and 3.00-8.00% propylene glycol by mass percentage of the moisturizing barrier milk.

In a preferred embodiment, the stabilizer is magnesium sulfate.

In a preferred embodiment, the neutralizing agent is sodium citrate.

In a preferred embodiment, the sunscreen agent is ethylhexyl methoxycinnamate.

In a preferred embodiment, the colorant comprises, in mass percent of the moisturizing barrier milk, 1.00-4.00% of a titanium dioxide & lauroyl lysine & aluminum hydroxide composition (VHK-CR/LL-TiO2, a mass ratio of titanium dioxide, lauroyl lysine to aluminum hydroxide of 8:1.5:0.5), 0.50-3.00% of an ultramarine & triethoxyoctylsilane composition (u.m. violet AS, a mass ratio of ultramarine to triethoxyoctylsilane of 7:3), and 0.20-1.00% of a titanium dioxide & triethoxyoctylsilane composition (Micro TiO 2035 AS, a mass ratio of titanium dioxide to triethoxyoctylsilane of 9: 1).

In a preferred embodiment, the emulsifier comprises 2.00-6.00% lauryl PEG-9 dimethiconoethyl dimethicone (KF 6038), 1.00-3.00% dimethicone PEG-10/15 crosspolymer (KSG210), and 0.20-1.00% dimethicone/polyglycerin-3 crosspolymer (KSG710, dimethicone to polyglycerin-3 mass ratio 3:2), by mass percent of the moisturizing barrier emulsion.

In a preferred embodiment, the thickener is cyclopentasiloxane&Disteardimonium hectorite&Propylene carbonate compositions (BENTONE)

VS-5PC V HV, cyclic pentamethyldimethicone, disteardimonium hectorite and propylene carbonate in a mass ratio of 7:1: 1).

In a preferred embodiment, the emollient comprises 2.00-6.00% polydimethylsiloxane and 6.00-10.00% cyclopentadecylpolydimethylsiloxane by mass percent of the moisturizing barrier emulsion&Cyclohexasiloxane compositions (XIAMERER)^TMPMX-0345 Cyclosiloxane Blend, 3:2 weight ratio of cyclopentadimethylsiloxane to cyclohexasiloxane).

In a preferred embodiment, the film former is a trimethylpentanediol/adipic acid/glycerol crosspolymer (WetFilm)^TMThe mass ratio of trimethylpentanediol, adipic acid and glycerol is 5:3: 2).

In a preferred embodiment, the skin feel modifier comprises 0.50-1.00% polymethyl methacrylate and 2.00-6.00% vinyl dimethicone/polymethylsiloxane silsesquioxane crosspolymer (KSP-100) by mass percent of the moisturizing barrier milk.

In a preferred embodiment, the preservative is caprylyl glycol&Hexanediol&Ethyl hexyl glycerol&Phenoxyethanol compositions (

HPOE, octyl glycol, hexanediol, ethylhexyl glycerol and phenoxyethanol in a mass ratio of 3:3:1: 3).

In a specific embodiment, the method for preparing the moisturizing and isolating milk comprises the following steps:

The following is a specific example and a description of the technical solution and the technical effect of the present invention with reference to corresponding test experiments.

Example 1

The pure mineral security moisture-keeping isolation milk comprises the following components in percentage by weight:

phase A: water (to 100%), glycerol 6.00%, propylene glycol 4.00%, magnesium sulfate 0.30%, sodium citrate 0.30%;

phase B: titanium dioxide & lauroyl lysine & aluminum hydroxide 1.50%, ultramarine & triethoxy octyl silane 2.00%, titanium dioxide & triethoxy octyl silane 1.00%, neopentyl glycol dibasic ester 6.00%;

and C phase: lauryl PEG-9 dimethiconoethyl dimethicone 3.00%, dimethicone PEG-10/15 crosspolymer 2.00%, dimethicone/polyglycerin-3 crosspolymer 0.20%, cyclopentadimethylsiloxane & disteardimonium hectorite & propylene carbonate 4.00%, ethylhexyl methoxycinnamate 3.00%, dimethicone 2.00%, cyclopentadimethylsiloxane & cyclohexasiloxane 7.00%;

phase D: 0.30% of trimethylpentanediol/adipic acid/glycerol cross-linked polymer, 0.60% of polymethyl methacrylate, 6.00% of vinyl polydimethylsiloxane/polymethylsiloxane silsesquioxane cross-linked polymer and 0.80% of caprylyl glycol & hexanediol & ethylhexyl glycerol & phenoxyethanol.

The preparation method of the moisturizing isolation milk comprises the following specific steps:

s1, sequentially adding the phase A materials into a water phase pot, heating to 75 ℃, continuously stirring, heating to 90 ℃, and keeping the temperature for 15 minutes;

s2, uniformly mixing the phase B materials, wetting and primarily uniformly mixing, and grinding for 2 times by using a three-roller machine to form color paste for later use;

s3, adding the C-phase material into an emulsifying pot, heating to 75 ℃, homogenizing at 250rpm for 2min, stirring at 25HZ until the C-phase material is completely dissolved uniformly, and stopping heating;

s4, slowly pumping the water phase in the water phase pot into the emulsifying pot under 40HZ stirring, maintaining vacuum and stirring for 10min after pumping, starting 3100rpm to homogenize for 4min, and stirring and defoaming for 10min at 25 HZ;

s5, adding the D-phase material of the mixture, starting 2000rpm, homogenizing for 4min, stirring and defoaming for 12min at 20 HZ;

s6, cooling to below 40 ℃, and discharging to obtain the moisturizing isolation milk.

Heat resistance (48 ℃): recovering to room temperature for 30 days without abnormality;

cold resistance (-15 ℃): after 30 days, the temperature was returned to room temperature without abnormality.

Example 2

phase A: water (to 100%), glycerol 5.00%, propylene glycol 7.00%, magnesium sulfate 0.50%, sodium citrate 0.20%;

phase B: 3.20% of titanium dioxide & lauroyl lysine & aluminum hydroxide, 1.20% of ultramarine & triethoxy octyl silane, 0.50% of titanium dioxide & triethoxy octyl silane and 5.00% of neopentyl glycol dibasic ester;

and C phase: lauryl PEG-9 dimethiconoethyl dimethicone 2.00%, dimethicone PEG-10/15 crosspolymer 1.00%, dimethicone/polyglycerin-3 crosspolymer 0.50%, cyclopentadimethylsiloxane & disteardimonium hectorite & propylene carbonate 3.00%, ethylhexyl methoxycinnamate 3.00%, dimethicone 3.00%, cyclopentadimethylsiloxane & cyclohexasiloxane 9.50%;

phase D: 0.5% of trimethylpentanediol/adipic acid/glycerol cross-linked polymer, 0.80% of polymethyl methacrylate, 3.00% of vinyl polydimethylsiloxane/polymethylsiloxane silsesquioxane cross-linked polymer and 0.60% of caprylyl glycol & hexanediol & ethylhexyl glycerol & phenoxyethanol.

s1, sequentially adding the phase A materials into a water phase pot, heating to 70 ℃, continuously stirring, heating to 85 ℃, and keeping the temperature for 20 minutes;

s2, uniformly mixing the B-phase materials, wetting and primarily mixing the materials uniformly, and grinding the mixture into color paste for 3 times by using a three-roller machine for later use;

s3, adding the C-phase material into an emulsifying pot, heating to 70 ℃, homogenizing at 200rpm for 3min, stirring at 25HZ until the C-phase material is completely dissolved uniformly, and stopping heating;

s4, slowly pumping the water phase in the water phase pot into the emulsifying pot under 40HZ stirring, maintaining vacuum and stirring for 10min after pumping, starting 2900rpm to homogenize for 3min, and stirring and defoaming for 10min at 20 HZ;

s5, adding the D-phase material of the mixture, starting 2200rpm, homogenizing for 3min, stirring and defoaming for 10min at 20 HZ;

Example 3

phase A: water (to 100%), glycerol 8.00%, propylene glycol 3.00%, magnesium sulfate 0.20%, sodium citrate 0.40%;

phase B: 3.00% of titanium dioxide & lauroyl lysine & aluminum hydroxide, 0.50% of ultramarine & triethoxy octyl silane, 0.60% of titanium dioxide & triethoxy octyl silane and 5.00% of neopentyl glycol dibasic ester;

and C phase: lauryl PEG-9 dimethiconoethyl dimethicone 6.00%, dimethicone PEG-10/15 crosspolymer 2.00%, dimethicone/polyglycerin-3 crosspolymer 0.80%, cyclopentadimethylsiloxane & disteardimonium hectorite & propylene carbonate 1.00%, ethylhexyl methoxycinnamate 5.00%, dimethicone 5.00%, cyclopentadimethylsiloxane & cyclohexasiloxane 8.00%;

phase D: 0.40% of trimethylpentanediol/adipic acid/glycerol cross-linked polymer, 0.50% of polymethyl methacrylate, 5.00% of vinyl polydimethylsiloxane/polymethylsiloxane silsesquioxane cross-linked polymer and 1.00% of caprylyl glycol & hexanediol & ethylhexylglycerol & phenoxyethanol.

s3, adding the C-phase material into an emulsifying pot, heating to 75 ℃, homogenizing at 200rpm for 2min, stirring at 25HZ until the C-phase material is completely dissolved uniformly, and stopping heating;

s4, slowly pumping the water phase in the water phase pot into the emulsifying pot under 40HZ stirring, maintaining vacuum and stirring for 10min after pumping, starting 3000rpm to homogenize for 4min, and stirring and defoaming for 12min at 20 HZ;

s5, adding the D-phase material of the mixture, starting 2000rpm, homogenizing for 4min, stirring at 25HZ and defoaming for 10 min;

Example 4

phase A: water (to 100%), glycerol 5.00%, propylene glycol 8.00%, magnesium sulfate 0.25%, sodium citrate 0.20%;

phase B: 4.00% of titanium dioxide & lauroyl lysine & aluminum hydroxide, 3.00% of ultramarine & triethoxyoctyl silane, 0.20% of titanium dioxide & triethoxyoctyl silane and 7.00% of neopentyl glycol dibasic ester;

and C phase: lauryl PEG-9 dimethiconoethyl dimethicone 3.00%, dimethicone PEG-10/15 crosspolymer 1.00%, dimethicone/polyglycerin-3 crosspolymer 0.30%, cyclopentadimethylsiloxane & disteardimonium hectorite & propylene carbonate 5.00%, ethylhexyl methoxycinnamate 4.00%, dimethicone 2.00%, cyclopentadimethylsiloxane & cyclohexasiloxane 10.00%;

phase D: 0.60% of trimethylpentanediol/adipic acid/glycerol cross-linked polymer, 1.00% of polymethyl methacrylate, 2.00% of vinyl polydimethylsiloxane/polymethylsiloxane silsesquioxane cross-linked polymer and 0.60% of caprylyl glycol & hexanediol & ethylhexyl glycerol & phenoxyethanol.

s1, sequentially adding the phase A materials into a water phase pot, heating to 70 ℃, continuously stirring, heating to 85 ℃, and keeping the temperature for 18 minutes;

s3, adding the C-phase material into an emulsifying pot, heating to 70 ℃, homogenizing at 220rpm for 3min, stirring at 25HZ until the C-phase material is completely dissolved uniformly, and stopping heating;

s4, slowly pumping the water phase in the water phase pot into the emulsifying pot under 40HZ stirring, maintaining vacuum and stirring for 10min after pumping, starting 2900rpm to homogenize for 5min, and stirring and defoaming for 10min at 20 HZ;

s5, adding the D-phase material of the mixture, starting 2100rpm to homogenize for 5min, stirring and defoaming for 10min at 20 HZ;

Example 5

phase A: water (to 100%), glycerol 7.00%, propylene glycol 6.00%, magnesium sulfate 0.20%, sodium citrate 0.30%;

phase B: 2.00% of titanium dioxide & lauroyl lysine & aluminum hydroxide, 1.50% of ultramarine & triethoxy octyl silane, 0.50% of titanium dioxide & triethoxy octyl silane and 3.00% of neopentyl glycol dibasic ester;

and C phase: lauryl PEG-9 dimethiconoethyl dimethicone 5.00%, dimethicone PEG-10/15 crosspolymer 3.00%, dimethicone/polyglycerin-3 crosspolymer 1.00%, cyclopentadimethylsiloxane & disteardimonium hectorite & propylene carbonate 3.00%, ethylhexyl methoxycinnamate 2.00%, dimethicone 6.00%, cyclopentadimethylsiloxane & cyclohexasiloxane 6.00%;

phase D: 0.35% of trimethylpentanediol/adipic acid/glycerol cross-linked polymer, 0.65% of polymethyl methacrylate, 3.00% of vinyl polydimethylsiloxane/polymethylsiloxane silsesquioxane cross-linked polymer and 0.50% of caprylyl glycol & hexanediol & ethylhexyl glycerol & phenoxyethanol.

s1, sequentially adding the phase A materials into a water phase pot, heating to 75 ℃, continuously stirring, heating to 85 ℃, and keeping the temperature for 15 minutes;

s4, slowly pumping the water phase in the water phase pot into the emulsifying pot under 40HZ stirring, maintaining vacuum and stirring for 10min after pumping, starting 2900rpm to homogenize for 4min, and stirring and defoaming for 10min at 22 HZ;

Comparative example 1

The same as in example 2, except that neopentyl glycol diutanoate was not added to the moisturizing skim milk of this example.

Heat resistance (48 ℃): after 30 days, the temperature was returned to room temperature, and delamination occurred.

Cold resistance (-15 ℃): after 30 days, the temperature was returned to room temperature and slight separation occurred.

Comparative example 2

The same as example 2, except that the moisturizing skim milk of this example did not have trimethylpentanediol/adipic acid/glycerol crosspolymer added.

Heat resistance (48 ℃): after 30 days, the temperature was returned to room temperature without abnormality.

Comparative example 3

The same as in example 2, except that neopentyl glycol ditallow and trimethylpentanediol/adipic acid/glycerol crosspolymer were not added to the moisturizing skim milk of this example.

Cold resistance (-15 ℃): after 30 days, the temperature was returned to room temperature, and delamination occurred.

Performance testing

1. Test of use effect

80 female volunteers with freckles on their faces were recruited, aged 20-35 years, and 10 individuals were used as a group, and the moisturizing and isolating milks of trial examples 1-5 and comparative examples 1-3 were respectively applied to the subjects who were directly using the corresponding moisturizing and isolating milks.

And observing and scoring the whitening and concealing effect, and simultaneously scoring the use experience by a user. The scores are all scored within 1-10 parts, the average value is taken, and 10 parts are full. The scoring results are shown in table 1.

Table 1 results of testing moisturizing barrier creams of examples 1 to 5 and comparative examples 1 to 3

The test results in table 1 show that the moisturizing creams of examples 1-5 have good whitening and concealing effects, can effectively brighten skin color, and are light, dry, smooth, non-greasy, soft, comfortable, fine and smooth in skin feel and good in use experience feel when applied on the skin.

The results of the skin moisturization test and the additional evaluation of the feeling of use experience after the volunteers continued to use the corresponding samples for 1 week are shown in table 2. Wherein the moisture retention is a moisture content retention ratio before and after use, and is measured by a skin moisture tester.

Table 2 trial tracking results of moisturizing barrier milks of examples 1-5 and comparative examples 1-3

As can be seen from the test results in Table 2, the moisturizing isolation creams of examples 1-5 have good moisturizing effect, lasting and effective moisturizing effect, mild application process, no toxicity or irritation, comfortable skin feel, no acne induction, and effective skin protection.

2. Sun protection test

The moisturizing and insulating milk samples of examples 1 to 5 and comparative examples 1 to 3 were each processed on a quartz glass plate at 2mg/cm³After 15 minutes, the quartz glass plate was placed on the probe of an ultraviolet intensity tester (taiwan strait ultraviolet radiation illuminometer ST-510) to measure the ultraviolet intensity of the quartz glass plate after the moisture-retaining barrier emulsion was applied. Meanwhile, the ultraviolet intensity of the blank quartz glass plate to which the moisturizing barrier emulsion was not applied was measured as a control. The results are shown in Table 3.

Table 3 sunscreen test results for moisturizing barrier milks of examples 1-5 and comparative examples 1-3

As can be seen from the test results in Table 3, the moisturizing and sun-screening milks of examples 1-5 have good UV-screening ability, good sun-screening efficacy on the surface, and effective sun-screening effect on the skin.

3. Water resistance test

After the sunscreen test was completed, the quartz glass plate after the test was washed with clean water for 5 seconds, and the dripping and falling were observed as shown in table 4.

Table 4 water repellency test results of moisturizing barrier milks of examples 1 to 5 and comparative examples 1 to 3

As can be seen from the test results in Table 4, the moisturizing barrier creams of examples 1-5 have good waterproof effect, and can avoid the defect that make-up is easily removed when meeting water during use, thereby forming a long-lasting care for skin.

In summary, the results of the use test of the moisturizing emulsion in the embodiments 1 to 5 show that the moisturizing emulsion of the present invention has good whitening, concealing, waterproof and sunscreen effects, and the skin coated on the skin has light, dry, soft, smooth and non-greasy feeling, does not induce acne, and has good use experience. In addition, the moisture-keeping isolation milk does not contain additives and benzoate preservatives, is mild and comfortable in the use process, is non-toxic and non-irritant, cannot damage human skin, and is better in use experience.

The above embodiments are merely preferred embodiments of the present invention, and the technical solutions of the present invention are described in further detail, but the scope and implementation of the present invention are not limited thereto, and any changes, combinations, deletions, substitutions or modifications that do not depart from the spirit and principle of the present invention are included in the scope of the present invention.

Claims

1. The moisturizing isolation milk is characterized by comprising the following components in percentage by mass:

2. The moisturizing and isolating milk as claimed in claim 1, characterized by comprising the following components in percentage by mass:

3. The moisturizing barrier milk of claim 1 or 2, wherein the moisturizer comprises glycerin and propylene glycol in a mass ratio of 5-8: 3-8; the stabilizer is magnesium sulfate; the neutralizing agent is sodium citrate; the sun-screening agent is ethylhexyl methoxycinnamate.

4. A moisturizing isolation cream according to claim 1 or 2, characterized in that said coloring agent comprises, in a mass ratio of 1-4: 0.5-3: 0.2-1 of titanium dioxide & lauroyl lysine & aluminum hydroxide composition, ultramarine & triethoxycaprylylsilane composition, and titanium dioxide & triethoxycaprylylsilane composition;

the titanium dioxide and lauroyl lysine and aluminum hydroxide composition is a compound of titanium dioxide and lauroyl lysine and aluminum hydroxide in a mass ratio of 7-8:1.5-2: 0.5-1;

the ultramarine blue & triethoxyoctylsilane composition is a compound of ultramarine blue and triethoxyoctylsilane in a mass ratio of 7-8: 2-3;

the titanium dioxide and triethoxyoctylsilane composition is a compound of titanium dioxide and triethoxyoctylsilane in a mass ratio of 7-9: 1-3.

5. The moisturizing emulsion of claim 1 or 2, wherein the emulsifier comprises lauryl PEG-9 dimethicone ethyl dimethicone, dimethicone PEG-10/15 crosspolymer, and dimethicone/polyglycerin-3 crosspolymer in a mass ratio of 2-6:1-3: 0.2-1.

6. A moisturizing barrier cream as in claim 1 or 2, wherein said thickener is a cyclopentadimethylsiloxane & disteardimonium hectorite & propylene carbonate composition; wherein the mass ratio of the cyclopentadimethylsiloxane, the disteardimonium hectorite to the propylene carbonate is 6-8:1-2: 1-2.

7. The moisturizing emulsion according to claim 1 or 2, wherein the emollient comprises dimethicone and cyclopentasiloxane & cyclohexasiloxane composition in a mass ratio of 2-6: 6-10;

in the cyclopentadecylidene dimethyl siloxane and cyclohexasiloxane composition, the mass ratio of cyclopentadecylidene dimethyl siloxane to cyclohexasiloxane is 3-4: 1-2.

8. The moisturizing barrier cream of claim 1 or 2, wherein the skin feel modifier comprises polymethyl methacrylate and vinyl dimethicone/polymethylsilsesquioxane crosspolymer in a mass ratio of 0.5-1: 2-6.

9. A moisturizing barrier cream according to claim 1 or 2, wherein said preservative is a caprylyl glycol & hexylene glycol & ethylhexyl glycerin & phenoxyethanol composition; wherein the mass ratio of the caprylyl glycol, the hexanediol, the ethylhexyl glycerin and the phenoxyethanol is 2-3:3:1-2: 3.

10. A process for preparing a moisturizing milk barrier according to any one of claims 1 to 9, comprising the steps of: