Sunscreen spray for dark skin and preparation method thereof

Abstract

The invention discloses a sunscreen spray for dark skin and a preparation method thereof, and the sunscreen spray comprises the following components by mass: 10-18% of a sunscreen agent; 1 to 1.5 percent of arginine; 4-5% of a humectant; 0.3 to 0.4 percent of essence; 0.2 to 0.3 percent of phenoxyethanol; 1% to 1.5% of a vinyl polydimethylsiloxane / polymethylsiloxane silsesquioxane cross-linked polymer; 15 to 18% of water; 1 to 1.5 percent of cetyl PEG (Polyethylene Glycol) / PPG-10 / 1 polydimethylsiloxane; 0.3 to 0.4 percent of sodium chloride; 15-20% of an emollient; 1-1.5% of silica; 25 to 30% of a propellant; 6-8% of a physical sun-screening agent; and 1 to 1.5% of disteardimonium hectorite. The physical sun-screening agent is added into the raw materials, and zinc oxide and titanium dioxide in the physical sun-screening agent are utilized, so that the skin of a user can become bright and no longer dim, and meanwhile, the skin can become smoother and softer under the cooperation of the emollient.

Description

Technical Field

[0001] The invention relates to the technical field of sunscreen spray, and in particular to a sunscreen spray for dull skin and a preparation method thereof. Background Art

[0002] As people pay more attention to the quality of life, various cosmetics have emerged, and sunscreen products are one of the essential products for home and travel. They can provide people with a good sun protection effect, allowing users to get closer to nature and enjoy the outdoors with more confidence. In particular, sunscreen products that are simple and convenient to use have great market prospects. Most people have thin and soft skin, low melanin content, thin pigment layer, high photosensitivity, poor resistance to ultraviolet rays, and are easily burned by ultraviolet radiation. At present, people generally use sunscreen spray for sun protection.

[0003] Although the existing sunscreen spray can achieve the purpose of sun protection when used, it cannot brighten and improve the luster of the skin of users with dull skin when used. Therefore, it is necessary to design a sunscreen spray for dull skin and a preparation method thereof. Summary of the invention

[0004] The purpose of the present invention is to solve the shortcomings of the prior art and to propose a sunscreen spray for dull skin and a preparation method thereof.

[0005] In order to achieve the above object, the present invention adopts the following technical scheme: a sunscreen spray for dull skin, comprising the following components in percentage by mass:

[0006] Sunscreen: 10-18%;

[0007] Arginine: 1-1.5%;

[0008] Humectant: 4-5%;

[0009] Flavor: 0.3-0.4%;

[0010] Phenoxyethanol: 0.2-0.3%;

[0011] Vinyl Dimethicone / Methicone Silsesquioxane Crosspolymer: 1-1.5%;

[0012] Water: 15-18%;

[0013] Cetyl PEG / PPG-10 / 1 dimethicone: 1-1.5%;

[0014] Sodium chloride: 0.3-0.4%;

[0015] Emollients: 15-20%;

[0016] Silica: 1-1.5%;

[0017] Propellant: 25-30%;

[0018] Physical sunscreen: 6-8%;

[0019] Disteardimethylammonium hectorite: 1-1.5%.

[0020] As a further description of the above technical solution:

[0021] The sunscreen comprises ethylhexyl methoxycinnamate, octocrylene, methylene bis-benzotriazolyl tetramethylbutylphenol, phenylbenzimidazole sulfonic acid, diethylamino hydroxybenzoyl hexyl benzoate, bis-ethylhexyloxyphenol methoxyphenyl triazine and ethylhexyl triazone, wherein the weight of the ethylhexyl methoxycinnamate accounts for 6-7% of the total weight, the weight of the octocrylene accounts for 2-3% of the total weight, the weight of the methylene bis-benzotriazolyl tetramethylbutylphenol accounts for 1-1.5% of the total weight, the weight of the phenylbenzimidazole sulfonic acid accounts for 2-2.5% of the total weight, the weight of the diethylamino hydroxybenzoyl hexyl benzoate accounts for 1-1.5% of the total weight, the weight of the bis-ethylhexyloxyphenol methoxyphenyl triazine accounts for 0.5-1% of the total weight, and the weight of the ethylhexyl triazone accounts for 0.5-1% of the total weight.

[0022] As a further description of the above technical solution:

[0023] The moisturizing agent comprises propylene glycol, glycerin and ethylhexylglycerin, the weight of the propylene glycol accounts for 2-3% of the total weight, the weight of the glycerin accounts for 1-1.5% of the total weight, and the weight of the ethylhexylglycerin accounts for 0.01-0.05% of the total weight.

[0024] As a further description of the above technical solution:

[0025] The emollient comprises isododecane, cyclopentasiloxane, polydimethylsiloxane, diethylhexyl carbonate, cetyl ethylhexanoate and octyl polymethylsiloxane, wherein the weight of the isododecane accounts for 7-8% of the total weight, the weight of the cyclopentasiloxane accounts for 3-4% of the total weight, the weight of the polydimethylsiloxane accounts for 3-4% of the total weight, the weight of the diethylhexyl carbonate accounts for 2-3% of the total weight, the weight of the cetyl ethylhexanoate accounts for 1-2% of the total weight, and the weight of the octyl polymethylsiloxane accounts for 1-2% of the total weight.

[0026] As a further description of the above technical solution:

[0027] The propellant comprises butane and propane, the weight of butane accounts for 20-21% of the total weight, and the weight of propane accounts for 8-9% of the total weight.

[0028] As a further description of the above technical solution:

[0029] The physical sunscreen comprises zinc oxide and titanium dioxide, the weight of the zinc oxide accounts for 5-6% of the total weight, and the weight of the titanium dioxide accounts for 2-3% of the total weight.

[0030] A method for preparing a sunscreen spray for dull skin comprises the following steps:

[0031] S1: Two people weigh the materials one by one and set them aside;

[0032] S2: First, add the raw materials isododecane, ethylhexyl methoxycinnamate, zinc oxide, cyclopentasiloxane, polydimethylsiloxane, octocrylene, titanium dioxide, diethylhexyl carbonate, diethylaminohydroxybenzoyl hexyl benzoate, disteardimonium hectorite, silica, cetyl ethylhexanoate, cetyl PEG / PPG-10 / 1 polydimethylsiloxane, caprylyl polydimethylsiloxane, vinyl polydimethylsiloxane / polydimethylsiloxane silsesquioxane crosspolymer, bis-ethylhexyloxyphenol methoxyphenyl triazine, and ethylhexyl triazone into the main pot, turn on the stirrer at 50-80 rpm, and start heating to 80-85°C;

[0033] S3: Add raw water, propylene glycol, methylene bis-benzotriazolyl tetramethylbutylphenol, phenylbenzimidazole sulfonic acid, glycerol, arginine and sodium chloride to another emulsifying pot respectively, stir evenly, and homogenize for 3-5 minutes; then, under stirring, slowly pump the aqueous phase mixture into the main pot oil phase pot, homogenize for 3-5 minutes after pumping, and keep warm for 15-30 minutes;

[0034] S4: Cooling down, when the temperature reaches 45°C, adding the raw material essence, phenoxyethanol and ethylhexylglycerin, and stirring evenly;

[0035] S5: Sampling and testing, after passing the test, the material is discharged and left to stand for 48 hours, and the raw materials butane and propane are put into the tank; filling;

[0036] S6: Pack according to quantity and then put into storage.

[0037] The present invention has the following beneficial effects:

[0038] 1. Compared with the prior art, the present invention adds physical sunscreens to the raw materials and utilizes zinc oxide and titanium dioxide in the physical sunscreens to make the user's skin brighter and no longer dull. At the same time, with the cooperation of emollients, the skin can become smoother and softer.

[0039] 2. Compared with the prior art, the sunscreen spray of the present invention has a refreshing and non-greasy feel on the skin, is easy to apply, has an SPF value of 50, reaches the PA+++ level, has high safety performance, and has good sunscreen effect. DETAILED DESCRIPTION

[0040] A sunscreen spray for dull skin, comprising the components in percentage by mass shown in Table 1 below:

[0041] Table 1

[0042]

[0043]

[0044] The preparation steps of the embodiment:

[0045] S1: Two people weigh the materials one by one and set them aside;

[0046] S2: First, add the raw materials isododecane, ethylhexyl methoxycinnamate, zinc oxide, cyclopentasiloxane, polydimethylsiloxane, octocrylene, titanium dioxide, diethylhexyl carbonate, diethylaminohydroxybenzoyl hexyl benzoate, disteardimonium hectorite, silica, cetyl ethylhexanoate, cetyl PEG / PPG-10 / 1 polydimethylsiloxane, caprylyl polydimethylsiloxane, vinyl polydimethylsiloxane / polydimethylsiloxane silsesquioxane crosspolymer, bis-ethylhexyloxyphenol methoxyphenyl triazine, and ethylhexyl triazone into the main pot, turn on the stirrer at 50-80 rpm, and start heating to 80-85°C;

[0047] S3: Add raw water, propylene glycol, methylene bis-benzotriazolyl tetramethylbutylphenol, phenylbenzimidazole sulfonic acid, glycerol, arginine and sodium chloride to another emulsifying pot respectively, stir evenly, and homogenize for 3-5 minutes; then, under stirring, slowly pump the aqueous phase mixture into the main pot oil phase pot, homogenize for 3-5 minutes after pumping, and keep warm for 15-30 minutes;

[0048] S4: Cooling down, when the temperature reaches 45°C, adding the raw material essence, phenoxyethanol and ethylhexylglycerin, and stirring evenly;

[0049] S5: Sampling and testing, after passing the test, the material is discharged and left to stand for 48 hours, and the raw materials butane and propane are put into the tank; filling;

[0050] S6: Pack according to quantity and then put into storage.

[0051] Test 1: Experimental method of improving dull skin with this sunscreen spray

[0052] 10 healthy women aged 18 to 50 were selected as subjects to use this sunscreen spray product under safe conditions to evaluate its effectiveness. Each subject tried the same product, followed the test requirements to complete the entire test for a total of 4 weeks, and filled out the questionnaire in a timely manner. The method of using the product is to apply an appropriate amount of the product evenly to the arm after cleansing, once in the morning and once in the evening, and record and summarize the feelings after use and the changes in the test skin. Although this experiment is a questionnaire survey and has a certain degree of subjectivity, it has a certain reference significance and value for the role of this sunscreen spray in treating dull skin and deeply moisturizing the skin.

[0053] Experimental results and analysis

[0054] Table 2 is a questionnaire on the improvement of dull skin by sunscreen spray.

[0055]

[0056]

[0057] At 2 weeks, 80% of the subjects felt that their dull skin was relieved, 80% of the subjects felt that their skin was protected, 80% of the subjects felt that their dull skin was improved, 80% of the subjects felt that their skin became soft and smooth, 90% of the subjects felt that their skin became translucent, 80% of the subjects felt that their skin became moisturized and brightened, and more than 90% of the subjects felt that the product was non-irritating. At 4 weeks, 90% of the subjects felt that their dull skin was relieved, 80% of the subjects felt that their skin was protected, 90% of the subjects felt that their dull skin was improved, 80% of the subjects felt that their skin became soft and smooth, more than 90% of the subjects felt that their skin became translucent and brightened, and more than 90% of the subjects felt that the product was non-irritating.

[0058] Self-evaluation by the subjects: After using this sunscreen spray product, the subjects' skin was protected, dull skin was improved, there was no irritation, existing facial dullness was improved, the skin became soft and smooth, and was deeply nourished and moisturized.

[0059] Safety: No adverse skin reactions were observed after using this sunscreen spray for 4 weeks.

[0060] Test 2: Physical and chemical index detection, the results are shown in Table 3:

[0061] Table 3 Physical and chemical test results

[0062]

[0063]

[0064] Test 3, toxicology test, the results are shown in Table 4:

[0065] Test method: The samples submitted by the client were subjected to multiple skin irritation tests in accordance with the "Safety Technical Specifications for Cosmetics" (2015 edition). Before the test, the animals were adapted to the experimental animal room environment for 3 days. About 24 hours before the test, the hair on both sides of the spine of the experimental animals were shaved, and the hair removal range was about 3cm×3cm on the left and right. During the test, 0.5mL of the test substance was applied to the left skin, with an application area of ​​about 2.5cm×2.5cm. The right skin was used as a control. Apply once a day for 14 consecutive days. Starting from the second day, olive oil was used to remove the residual test substance from the front hair each time it was applied. Observe the skin reaction after one hour, and score the skin irritation reaction according to Table 1 in Chapter 6 4 Skin Irritation / Corrosion Test of the "Safety Technical Specifications for Cosmetics" (2015 edition). The average score of each animal per day was calculated according to the formula, and the skin irritation intensity was graded according to Table 2.

[0066] Table 4 Toxicology test results

[0067]

[0068]

[0069] Test 4, human skin patch test, the results are shown in Table 5:

[0070] Patch test method: Select qualified patch test equipment and use the closed patch test method. Place about 0.03 ml of the test substance in the patch tester and apply it to the back of the subject with low-allergenic tape. Remove the test substance after 24 hours and observe the skin reaction 0.5, 24, and 48 hours after removal. Record the results according to the skin reaction grading standards in the "Technical Specifications for Safety of Cosmetics" (2015 edition).

[0071] Table 5 Human skin patch test results

[0072]

[0073] Test 5: Determination of SPF value of sunscreen cosmetics. The results are shown in Table 6:

[0074] Test method: Test in accordance with the specific requirements of the "Technical Specifications for Safety of Cosmetics" (2015 edition). The subject takes a forward leaning position and irradiates the back. Predict the minimum erythema dose (MED value) of the subject's skin to ultraviolet radiation 24 hours before the test, and adjust the ultraviolet radiation dose according to the predicted results for the test sample. On the day of the test, first select a spot no less than 30cm on the subject's back. 2 For normal skin area, (2.00+0.05)mg / cm 2The test object or reference product is evenly applied to the above area with the dosage of 1000mg / L, and then the irradiation dose is selected according to the specification requirements. The irradiation is carried out in three cases: ① No sample is applied to the subject's skin; ② Standard control sample is applied; ③ The sample to be tested is applied. Observe the experimental results after 24 hours and record the MED values ​​in the three cases respectively.

[0075] SPF value calculation method: The SPF value of a sample or standard product protecting a single subject is expressed as follows:

[0076]

[0077] Table 6 Test results of SPF value of sunscreen cosmetics

[0078]

[0079]

[0080] Conclusion: The human test results showed that the SPF value of the tested samples was 51.

[0081] Test 6: Determination of the long-wave ultraviolet protection index (PFA value) of sunscreen cosmetics. The results are shown in Table 7:

[0082] Test method: Test in accordance with the specific requirements of the "Technical Specifications for Safety of Cosmetics" (2015 edition). The subject takes a forward leaning position and irradiates the back. Predict the minimum blackening amount (MPPD value) of the subject's skin to ultraviolet radiation 24 hours before the test, and adjust the ultraviolet radiation amount according to the predicted results for testing the test object. The test first selects a spot no less than 30cm on the subject's back. 2 For normal skin area, (2.00±0.05)mg / cm 2 Apply the test object or reference product evenly on the above area; then select the UVA exposure amount according to the specification requirements, and irradiate in three situations: ① No sample is applied to the subject's skin; ② Apply the standard reference product; ③ Apply the test sample. Observe the experimental results after 2-4 hours, and record the MPPD values ​​in the three situations respectively.

[0083] Calculation method of PFA value: The PFA value of a sample or standard for a single subject is expressed as follows:

[0084]

[0085] Table 7 Test results of long-wave ultraviolet protection index (PFA value) of sunscreen cosmetics

[0086]

[0087]

[0088] Conclusion: The human test results showed that the PFA value of the sample was 16.

[0089] According to the above test results, it can be concluded that the sunscreen spray of the present invention is suitable for people with dull skin, so that people's skin is brighter and no longer dull after use. At the same time, with the cooperation of a moisturizer, the skin can become smoother and softer, and the present invention can also play a better sunscreen effect.

[0090] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A sunscreen spray for dull skin, characterized by: The following components are included in percentage by mass: Sunscreen: 10-18%; Arginine: 1-1.5%; Humectant: 4-5%; Flavor: 0.3-0.4%; Phenoxyethanol: 0.2-0.3%; Vinyl Dimethicone / Methicone Silsesquioxane Crosspolymer: 1-1.5%; Water: 15-18%; Cetyl PEG / PPG-10 / 1 dimethicone: 1-1.5%; Sodium chloride: 0.3-0.4%; Emollients: 15-20%; Silica: 1-1.5%; Propellant: 25-30%; Physical sunscreen: 6-8%; Disteardimethylammonium hectorite: 1-1.5%.

2. A sunscreen spray for dull skin according to claim 1, characterized in that: The sunscreen comprises ethylhexyl methoxycinnamate, octocrylene, methylene bis-benzotriazolyl tetramethylbutylphenol, phenylbenzimidazole sulfonic acid, diethylamino hydroxybenzoyl hexyl benzoate, bis-ethylhexyloxyphenol methoxyphenyl triazine and ethylhexyl triazone, wherein the weight of the ethylhexyl methoxycinnamate accounts for 6-7% of the total weight, the weight of the octocrylene accounts for 2-3% of the total weight, the weight of the methylene bis-benzotriazolyl tetramethylbutylphenol accounts for 1-1.5% of the total weight, the weight of the phenylbenzimidazole sulfonic acid accounts for 2-2.5% of the total weight, the weight of the diethylamino hydroxybenzoyl hexyl benzoate accounts for 1-1.5% of the total weight, the weight of the bis-ethylhexyloxyphenol methoxyphenyl triazine accounts for 0.5-1% of the total weight, and the weight of the ethylhexyl triazone accounts for 0.5-1% of the total weight.

3. A sunscreen spray for dull skin according to claim 1, characterized in that: The moisturizing agent comprises propylene glycol, glycerin and ethylhexylglycerin, the weight of the propylene glycol accounts for 2-3% of the total weight, the weight of the glycerin accounts for 1-1.5% of the total weight, and the weight of the ethylhexylglycerin accounts for 0.01-0.05% of the total weight.

4. A sunscreen spray for dull skin according to claim 1, characterized in that: The emollient comprises isododecane, cyclopentasiloxane, polydimethylsiloxane, diethylhexyl carbonate, cetyl ethylhexanoate and octyl polymethylsiloxane, wherein the weight of the isododecane accounts for 7-8% of the total weight, the weight of the cyclopentasiloxane accounts for 3-4% of the total weight, the weight of the polydimethylsiloxane accounts for 3-4% of the total weight, the weight of the diethylhexyl carbonate accounts for 2-3% of the total weight, the weight of the cetyl ethylhexanoate accounts for 1-2% of the total weight, and the weight of the octyl polymethylsiloxane accounts for 1-2% of the total weight.

5. A sunscreen spray for dull skin according to claim 1, characterized in that: The propellant comprises butane and propane, the weight of butane accounts for 20-21% of the total weight, and the weight of propane accounts for 8-9% of the total weight.

6. A sunscreen spray for dull skin according to claim 1, characterized in that: The physical sunscreen comprises zinc oxide and titanium dioxide, the weight of the zinc oxide accounts for 5-6% of the total weight, and the weight of the titanium dioxide accounts for 2-3% of the total weight.

7. A method for preparing a sunscreen spray for dull skin, characterized in that: The following steps are involved: S1: Two people weigh the materials one by one and set them aside; S2: First, add the raw materials isododecane, ethylhexyl methoxycinnamate, zinc oxide, cyclopentasiloxane, polydimethylsiloxane, octocrylene, titanium dioxide, diethylhexyl carbonate, diethylaminohydroxybenzoyl hexyl benzoate, disteardimonium hectorite, silica, cetyl ethylhexanoate, cetyl PEG / PPG-10 / 1 polydimethylsiloxane, caprylyl polydimethylsiloxane, vinyl polydimethylsiloxane / polydimethylsiloxane silsesquioxane crosspolymer, bis-ethylhexyloxyphenol methoxyphenyl triazine, and ethylhexyl triazone into the main pot, turn on the stirrer at 50-80 rpm, and start heating to 80-85°C; S3: Add raw water, propylene glycol, methylene bis-benzotriazolyl tetramethylbutylphenol, phenylbenzimidazole sulfonic acid, glycerol, arginine and sodium chloride to another emulsifying pot respectively, stir evenly, and homogenize for 3-5 minutes; then, under stirring, slowly pump the aqueous phase mixture into the main pot oil phase pot, homogenize for 3-5 minutes after pumping, and keep warm for 15-30 minutes; S4: Cooling down, when the temperature reaches 45°C, adding the raw material essence, phenoxyethanol and ethylhexylglycerin, and stirring evenly; S5: Sampling and testing, after passing the test, the material is discharged and left to stand for 48 hours, and the raw materials butane and propane are put into the tank; filling; S6: Pack according to quantity and then put into storage.

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