Fog-feeling smoothie texture sunscreen cream and preparation method thereof

Abstract

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

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of cosmetics, and particularly relates to a sunscreen with a misty and icy smooth texture and a preparation method thereof. BACKGROUND

[0002] With more and more people yearning for natural environment and enjoying outdoor activities, sunscreen has become a growing concern for people. Without any protective measures, the skin will be directly damaged by ultraviolet rays in sunlight after long-term sunlight exposure, resulting in symptoms such as redness, pain, peeling and sunburn, affecting the normal physiological function of the skin and increasing the probability of subsequent skin problems. In addition, long-wave ultraviolet rays can penetrate the bottom layer of the skin, stimulate melanocytes to produce melanin, and thus darken the skin. In addition, the collagen and elastic fibers in the skin will be damaged by long-term exposure to ultraviolet rays from sunlight, leading to skin laxity, wrinkles, and age spots.

[0003] The use of sunscreen products can effectively reduce the damage of ultraviolet rays to the skin and slow down the process of skin photoaging. Existing sunscreen products are mainly divided into water-in-oil emulsion system and oil-in-water emulsion system in terms of dosage form. The water-in-oil emulsion system is easier to achieve high sun protection factor and is waterproof and sweat-resistant, but the skin feel of the water-in-oil emulsion system is mostly greasy, shiny and poor in breathability. The oil-in-water emulsion system is relatively refreshing, but it is not as good as the water-in-oil emulsion product in terms of smoothness, skin texture and water and sweat resistance.

[0004] Patent document No. CN 111150677 B describes a sunscreen cosmetic, which comprises the following components in percentage by weight: humectant 5%-10%, thickening agent 0.2%-1.5%, water-based sunscreen 2%-4%, oily sunscreen 17.6%-23%, oil 1.8%-5.7%, preservative 1%-2%, skin conditioner 0.5%-5%, pH adjuster 2%-4% and water in balance. It mainly uses polyquaternium-37 as the water phase thickening agent, which has excellent thickening ability in the water-based sunscreen formula due to its high electrolyte resistance. The addition of water-based sunscreen helps to improve the skin feel of the product. However, the patent formula has strict restrictions on the thickening agent and the melting point of the oil phase, and the compatibility of other functional components and the emollient properties need to be further improved. SUMMARY

[0005] In view of the shortcomings and deficiencies of the prior art, the primary purpose of the present application is to provide a sunscreen with a misty and icy smooth texture.

[0006] Another purpose of the present application is to provide a preparation method of the above-mentioned sunscreen with a misty and icy smooth texture.

[0007] The application achieves the above-mentioned purpose by the following technical solutions.

[0008] A sunscreen with a foggy ice-sand texture, comprising the following components in the following weight percentage ranges:

[0009] Sunscreen 12-30%, emollient 10-30%, humectant 5-20%, emulsifier 3-6%, skin conditioner 0.3-2%, thickening agent 1-3%, antioxidant 0.3-0.8%, chelating agent 0.03-0.06%, fragrance 0.01-0.05%, and the rest is water.

[0010] The sunscreen is a combination of polysilicone-15, diethyl hydroxybenzoyl hexyl benzoate, bis-ethylhexyloxyphenol methoxyphenyl triazine, and ethylhexyl triazone.

[0011] Preferably, the weight percentage composition of the sunscreen is polysilicone-15 6-10%, diethyl hydroxybenzoyl hexyl benzoate 3-7%, bis-ethylhexyloxyphenol methoxyphenyl triazine 3-7%, and ethylhexyl triazone 2-4%.

[0012] Among the sunscreen components used in the application, polysilicone-15 has good UVB light filtering protection performance, diethyl hydroxybenzoyl hexyl benzoate has good UVA absorption performance, and bis-ethylhexyloxyphenol methoxyphenyl triazine and ethylhexyl triazone have good UVA and UVB absorption performance. Through the synergistic effect of the above-mentioned sunscreen components, better sunscreen performance and sunscreen stability are achieved.

[0013] Preferably, the emollient is a combination of one or more of diisopropyl adipate, isononyl isononanoate, and C12-15 alcohols benzoate.

[0014] The application can provide good emollient performance through a high content of emollients, and the obtained product has a unique ice-sand texture, melts upon contact with the skin, is refreshing and not sticky, naturally modifies pores, and hides oil light, and the product texture and skin feel experience are both good.

[0015] Preferably, the humectant is a combination of one or more of glycerin, butylene glycol, erythritol, and 1,2-hexanediol. More preferably, it is a mixture of glycerin, butylene glycol, erythritol, and 1,2-hexanediol, wherein the content of each is: glycerin 1-10%, butylene glycol 1-10%, erythritol 1-10%, and 1,2-hexanediol 1-5%.

[0016] Preferably, the emulsifier is a combination of one or more of cetyl phosphate potassium, isostearyl alcohol, butylene glycol cocoate, ethyl cellulose, cetyl stearyl alcohol olive acid ester, sorbitan olive acid ester, and inulin lauryl carbamate.

[0017] Preferably, the skin conditioning agent is one or a combination of several of plant extracts, allantoin, and β-glucan. More preferably, it is a mixture of a gentian (Gentiana scabra) root extract composition, allantoin, and β-glucan, wherein the content of each is: 0.2-1% gentian (Gentiana scabra) root extract composition, 0.05-0.5% allantoin, and 0.05-0.5% β-glucan.

[0018] Preferably, the thickener is a compound of sodium acrylate copolymer and lecithin. The thickener of this invention, a compound of sodium acrylate copolymer and lecithin, gives the formula optimal viscosity and emulsifying properties. By stabilizing the high content of oily emollients through gelling and emulsifying properties, it achieves good moisturizing effects while maintaining the sunscreen's misty, icy texture and refreshing, non-sticky characteristics.

[0019] Preferably, the antioxidant is p-hydroxyacetophenone; the chelating agent is disodium EDTA.

[0020] The preparation method of the above-mentioned misty, icy texture sunscreen includes the following preparation steps:

[0021] (1) Mix water, moisturizer, some emulsifier, thickener, antioxidant, some skin conditioning agent and chelating agent into emulsification pot, heat and stir evenly to obtain phase A;

[0022] (2) Mix the sunscreen, emollient and remaining emulsifier, pour into an oil pan, heat and stir until evenly mixed to obtain phase B;

[0023] (3) Pulse B into phase A and stir evenly. Cool down to 40-45℃, then add the remaining skin conditioning agent and fragrance and stir evenly to obtain a misty slush sunscreen.

[0024] Preferably, the heating temperature in steps (1) and (2) is 80-85°C.

[0025] Compared with the prior art, the beneficial effects of the present invention are:

[0026] (1) The present invention achieves better sun protection performance and sun protection stability through the synergistic effect of specific sun protection agent components. The sun protection index can reach SPF50+ and PA++++ both initially and after accelerated testing.

[0027] (2) The sunscreen of the present invention uses a specific emulsification and thickening system to stably disperse a high content of oily emollients, giving the product a suitable texture and skin feel, improving the smoothness of application, enhancing the icy texture, melting upon contact with the skin, refreshing and non-sticky, naturally minimizing pores and concealing shine. At the same time, it replenishes and locks in moisture for the skin, keeping the skin moisturized and soft for a long time, and is gentle on all skin types. Detailed Implementation

[0028] The present invention will be further described in detail below with reference to embodiments, but the implementation of the present invention is not limited thereto.

[0029] Example 1

[0030] A sunscreen with a misty, icy texture has the following formula composition as shown in Table 1:

[0031] Table 1. Composition of sunscreen formulation

[0032]

[0033] *Made with LECIGEL™

[0034] The preparation method of the misty, icy texture sunscreen in this embodiment is as follows:

[0035] (1) Mix the raw materials numbered 1, 3, 5, 10, 13, 14, 15, 17, 19, 20, 22, and 24 in Table 1, pour them into an emulsifying pot, heat (80-85℃), and stir evenly to obtain phase A;

[0036] (2) Mix the raw materials numbered 2, 4, 6, 7, 8, 9, 11, 12 and 18 in Table 1, pour them into an oil pan and heat (80-85℃) until evenly mixed to obtain phase B;

[0037] (3) Particle B is drawn into Particle A and homogenized and stirred evenly. The temperature is lowered to 40-45℃. Then, the raw materials numbered 16, 21 and 23 are added and stirred evenly to obtain a misty slush-textured sunscreen.

[0038] Example 2

[0039] A sunscreen with a misty, icy texture has the following formula composition as shown in Table 2:

[0040] Table 2. Composition of Sunscreen Formula

[0041]

[0042] The preparation method of the misty, icy texture sunscreen in this embodiment is the same as that in Example 1.

[0043] Example 3

[0044] A sunscreen with a misty, icy texture has the following formula composition as shown in Table 3:

[0045] Table 3. Composition of Sunscreen Formula

[0046]

[0047] The preparation method of the misty, icy texture sunscreen in this embodiment is the same as that in Example 1.

[0048] Comparative Example 1

[0049] A misty, icy texture sunscreen, which differs from Example 1 in that it lacks polysiloxane-15 as a sunscreen agent and uses a combination of 5% diethylamino hydroxybenzoyl hexyl benzoate + 10% diethylhexyloxyphenol methoxyphenyl triazine + 6% ethylhexyl triazine ketone.

[0050] Comparative Example 2

[0051] A misty, icy texture sunscreen, which differs from Example 1 in that it lacks diethylamino hydroxybenzoyl hexyl benzoate as a sunscreen agent and uses a combination of 8% polysiloxane-15 + 10% diethylhexyloxyphenol methoxyphenyl triazine + 3% ethylhexyl triazine ketone.

[0052] Comparative Example 3

[0053] A misty, icy texture sunscreen, which differs from Example 1 in that it lacks the sunscreen agents diethylhexyloxyphenol methoxyphenyl triazine and ethylhexyl triazine ketone, and uses a combination of 8% polysiloxane-15 + 13% diethylaminohydroxybenzoyl hexyl benzoate.

[0054] Comparative Example 4

[0055] A misty, icy texture sunscreen, compared to Example 1, differs in that it lacks the sodium acrylate copolymer (and) lecithin component and increases the sodium carbomer content to 2.0%.

[0056] The sun protection performance (ISO24444-2019), sun protection stability (SPF tested after 1 month of accelerated testing in a 48℃ constant temperature chamber), and skin feel (blind test evaluation by subjects) of the sunscreens obtained in the above examples and comparative examples were tested, and the results are shown in Table 4 below.

[0057] Table 4. Test results of products from Examples 1-3 and Comparative Examples 1-4

[0058]

[0059] The comparison results of Comparative Example 1 in Table 4 show that the absence of polysiloxane-15 in the sunscreen significantly reduced both the SPF and PA ratings of the product, indicating that polysiloxane-15 synergistically improves sun protection performance and plays a crucial role in stabilizing it. The comparison results of Comparative Example 2 show that the absence of diethylaminobenzoylhexyl benzoate in the sunscreen significantly reduced the PA rating of the product. The comparison results of Comparative Example 3 show that the absence of bis(ethylhexyloxyphenol) methoxyphenyl triazine and ethylhexyl triazine ketone in the sunscreen resulted in a decrease in both the SPF and PA ratings of the product. These results demonstrate that the combined sunscreen ingredients of polysiloxane-15, diethylaminobenzoylhexyl benzoate, bis(ethylhexyloxyphenol) methoxyphenyl triazine, and ethylhexyl triazine ketone exhibit a good synergistic effect. The comparison results of Example 4 show that the present invention uses a sodium acrylate copolymer (and) lecithin component as a cooling and moisturizing thickening emulsifier to stabilize and disperse a high content of oily emollients. This enhances the texture of the sorbet, conceals shine, and provides a refreshing and non-sticky feel. Simultaneously, the addition of the oily emollient replenishes and locks in moisture, keeping the skin hydrated and soft for a long time, and is gentle on all skin types.

[0060] The above embodiments are preferred embodiments of the present invention, but the embodiments of the present invention are not limited to the above embodiments. Any changes, modifications, substitutions, combinations, or simplifications made without departing from the spirit and principle of the present invention shall be considered equivalent substitutions and shall be included within the protection scope of the present invention.

Claims

1. A sunscreen with a misty, icy texture, characterized in that: Components including the following weight percentage range: Sunscreen 12-30%, emollient 10-30%, moisturizer 5-20%, emulsifier 3-6%, skin conditioner 0.3-2%, thickener 1-3%, antioxidant 0.3-0.8%, chelating agent 0.03-0.06%, fragrance 0.01-0.05%, balance water; The sunscreen agent is a combination of polysiloxane-15, diethylamino hydroxybenzoyl hexyl benzoate, bis(ethylhexyloxyphenol) methoxyphenyl triazine, and ethylhexyl triazine ketone.

2. The sunscreen with a misty, icy texture according to claim 1, characterized in that: The sunscreen agent is composed of the following weight percentages: polysiloxane-15 6-10%, diethylaminohydroxybenzoylhexyl benzoate 3-7%, bis(ethylhexyloxyphenol)methoxyphenyltriazine 3-7%, and ethylhexyltriazine 2-4%.

3. The sunscreen with a misty, icy texture according to claim 1, characterized in that: The emollient is one or a combination of several of the following: diisopropyl adipate, isononyl isononanoate, and C12-15 benzoyl alcohol.

4. The sunscreen with a misty, icy texture according to claim 1, characterized in that: The moisturizer is one or a combination of several of glycerin, butylene glycol, erythritol, and 1,2-hexanediol.

5. The sunscreen with a misty, icy texture according to claim 1, characterized in that: The emulsifier is one or a combination of several of the following: potassium cetyl phosphate, isostearyl alcohol, butylene glycol cocoate, ethyl cellulose, cetearyl oleate, sorbitan oleate, and inulin lauryl carbamate.

6. The sunscreen with a misty, icy texture according to claim 1, characterized in that: The skin conditioning agent is one or a combination of several of the following: plant extracts, allantoin, and β-glucan.

7. The sunscreen with a misty, icy texture according to claim 1, characterized in that: The thickener is a compound of sodium acrylate copolymer and lecithin.

8. The sunscreen with a misty, icy texture according to claim 1, characterized in that: The antioxidant is p-hydroxyacetophenone; the chelating agent is disodium EDTA.

9. A method for preparing a misty, icy texture sunscreen according to any one of claims 1-8, characterized in that: The preparation steps include the following: (1) Mix water, moisturizer, some emulsifier, thickener, antioxidant, some skin conditioning agent and chelating agent into emulsification pot, heat and stir evenly to obtain phase A; (2) Mix the sunscreen, emollient and remaining emulsifier, pour into an oil pan, heat and stir until evenly mixed to obtain phase B; (3) Pulse B into phase A and stir evenly. Cool down to 40-45℃, then add the remaining skin conditioning agent and fragrance and stir evenly to obtain a misty slush sunscreen.

10. The method for preparing a misty, icy texture sunscreen according to claim 9, characterized in that: The heating temperature described in steps (1) and (2) is 80-85℃.

Images