Deodorizing cosmetic with bacteriostatic and soothing effects and preparation method thereof

Abstract

The invention relates to the technical field of cosmetics, and discloses a deodorization cosmetic with bacteriostatic and soothing effects and a preparation method of the deodorization cosmetic. 3%-7% of persimmon fruit extract; 12%-15% of aloe gel; 4%-7% of glycerol; 7%-11% of a chamomile extract; 5%-8% of menthol; 2%-6% of a cordate houttuynia extract; 5%-9% of amino acid; 7%-10% of zinc chloride; 4%-8% of a vitamin combination; 1%-3% of beewax; 3%-6% of rose water; 0.5%-1% of corn starch; 2.5%-4% of sodium hyaluronate; according to the present invention, the deodorizing effect is achieved through the reasonable ratio of the menthol, the zinc chloride and the heartleaf houttuynia herb extract, the cooling feeling of the menthol can cover the odor, the zinc chloride can inhibit the growth of the microorganisms generating the odor, and the heartleaf houttuynia herb extract can increase the natural antibacterial property of the deodorizing cosmetic; the combination of the three raw materials can destroy the bacterial structure and inhibit metabolism by bacteria, so that the generation of peculiar smell is reduced from the source.

Description

Technical Field

[0001] The present invention relates to the technical field of cosmetics, in particular to a deodorizing cosmetic with antibacterial and soothing effects and a preparation method thereof. Background Art

[0002] In daily life, everyone has a unique body odor, which is closely related to surface secretions. People with mild body odor can emit a pleasant, fresh scent with just a small amount of perfume. However, those with pronounced body odor find it difficult to completely mask the odor even with strong perfume. Overpowering perfume can also cause skin irritation and discomfort to others, leading to embarrassment in crowded settings. While deodorizing skincare products currently on the market are designed to mask body odor and inhibit sweat secretion, their effectiveness is disappointing, and odors quickly reappear, requiring frequent use, which is extremely inconvenient. Furthermore, these products only temporarily mask odor and inhibit sweating, lacking the ability to cleanse surface secretions. Accumulated secretions not only clog pores and affect skin health, but also exacerbate odor or body odor, preventing effective deodorization. Furthermore, most existing products contain potassium alum, which is unstable and prone to precipitating, affecting deodorizing effectiveness. To quickly mask odor, they also contain large amounts of irritants, resulting in high allergy rates and skin damage. Summary of the Invention

[0003] (1) Technical problems solved

[0004] In response to the shortcomings of the existing technology, the present invention provides a deodorant cosmetic with antibacterial and soothing effects and a preparation method thereof, which has the advantages of high deodorization, long-lasting antibacterial and mild soothing, and solves the problems of traditional deodorant skin care products such as unsatisfactory deodorization effect, lack of antibacterial function, and high irritation and easy damage to the skin.

[0005] (2) Technical solution

[0006] To achieve the above-mentioned object, the present invention provides the following technical solution: a deodorant cosmetic with antibacterial and soothing effects, wherein the raw materials and their weight ratios of the cosmetic are: 8% to 10% witch hazel extract; 3% to 7% persimmon extract; 12% to 15% aloe vera gel; 4% to 7% glycerin; 7% to 11% chamomile extract; 5% to 8% menthol; 2% to 6% houttuynia cordata extract; 5% to 9% amino acids; 7% to 10% zinc chloride; 4% to 8% vitamin combination; 1% to 3% beeswax; 3% to 6% rose water; 0.5% to 1% corn starch; 2.5% to 4% sodium hyaluronate; 0.9% to 2.1% citric acid, and the remaining raw materials are deionized water.

[0007] Preferably, the purity of the witch hazel extract, persimmon fruit extract, chamomile extract and houttuynia cordata extract is between 95% and 100%.

[0008] Preferably, the vitamin combination consists of vitamin B2, vitamin B5, vitamin C and vitamin E in a ratio of 3:3:1:5.

[0009] Preferably, the amino acid is sodium cocoyl glutamate, which is prepared in two steps, specifically: The first step is the preparation of coconut oil chloride: S1.1. Raw materials: coconut acid, phosgene and N,N-dimethylformamide; S1.2. Reaction conditions: Add phosgene to coconut oil in a slightly soluble state at 110-120°C and react for 5-30 hours. The reaction equation is: R-COOH+COCl2=R-COCl+HCl In the reaction formula, R represents coconut oil group; S1.3, post-processing: After the reaction is completed, coconut oil chloride is obtained by vacuum distillation; Step 2: Synthesis of Sodium Cocoyl Glutamate: S2.1. Raw materials: cocoyl chloride, sodium glutamate, sodium hydroxide, hydrochloric acid, ethanol and water; S2.2, reaction conditions: Sodium glutamate is dissolved in a mixed solution of alcohol and water with a mass ratio of 1:1.0-10.0, and an aqueous solution of coconut oil chloride and sodium hydroxide with a molar ratio of 1:1.0-1.6 is added dropwise at 45-50°C for about 1.5-6 hours. The reaction equation is: R-COCl+HOOC-CH2CH2CH2CH2COONa=R-CO-NH-CH2CH2CH2CH2COONa+HCl S2.3. Reaction process: The sodium hydroxide is added at a rate and in an amount to maintain the pH value of the system between 6 and 15. After the addition is complete, the mixture is stirred for 4.5 to 6 hours, and the solvent is removed under reduced pressure at 0 to 100° C. for 0.5 to 6 hours. The mixture is cooled to 0 to 50° C., and hydrochloric acid is slowly added dropwise to maintain the pH value of the system between 0 and 10. Granular crystals are precipitated, and sodium cocoyl glutamate is obtained after filtration and drying.

[0010] Preferably, the corn starch has a particle size of 20-100 nm, and the rose water is extracted by distillation, and has a pH value between 5.0 and 6.0.

[0011] Preferably, a method for preparing a deodorant cosmetic with antibacterial and soothing effects is prepared according to the raw materials and weight ratios of the above-mentioned deodorant cosmetic with antibacterial and soothing effects, comprising the following steps: Step 1. Prepare raw materials: prepare witch hazel extract, persimmon fruit extract, aloe vera gel, glycerin, chamomile extract, menthol, houttuynia cordata extract, amino acids, zinc chloride, vitamin combination, beeswax, rose water, corn starch, sodium hyaluronate, citric acid and deionized water in the formula ratio; Step 2: Raw material pretreatment: purifying witch hazel extract and chamomile extract, and preparing nano corn starch into a dispersion; Step 3, Aqueous Phase A: In a constant temperature water bath, mix aloe vera gel, glycerin, rose water, sodium hyaluronate, and deionized water until completely dissolved; Step 4, Oil Phase B: Melt beeswax, vitamin combination, menthol and zinc chloride and homogenize; Step 5, emulsification system: add the oil phase B to the water phase A and emulsify at 7000-8000 rpm high shear for 20-25 minutes to form an emulsified system; Step 6: Adding antibacterial raw materials: Cool the emulsified system formed above to 30-35°C, add the persimmon fruit extract, houttuynia cordata extract and amino acids to the nano corn starch dispersion in order, and stir at a stirring speed of 300-400 rpm for 25-30 minutes to obtain a mixed system; Step 7: Adjust pH: Add citric acid dropwise to adjust the pH value of the mixture to between 5.5 and 6. Step 8: Filling and sterilization: Use a vacuum filler to fill the mixed system into light-proof glass bottles, fill with nitrogen for protection, and pasteurize at 60-65°C for 25-30 minutes.

[0012] Preferably, the witch hazel extract and chamomile extract are pretreated by dissolving the witch hazel extract and chamomile extract in a formula ratio in deionized water, and then filtering through a 0.22 μm microporous filter membrane for later use.

[0013] Preferably, the corn starch is pretreated by adding corn starch to a 1% to 2% xanthan gum solution, and ultrasonically treating the solution at 40 kHz and 300 W power for 30-45 minutes to form a stable suspension for later use.

[0014] Preferably, in step 3, the aqueous phase A is mixed with aloe vera gel, glycerin, rose water, sodium hyaluronate and deionized water in a constant temperature water bath at 45-50° C., and stirred at a stirring speed of 400-500 rpm for 10-15 minutes until completely dissolved.

[0015] Preferably, in step 4, the oil phase B is: beeswax, vitamin combination, menthol and zinc chloride are melted at 55-60° C. and stirred at 1000-2000 rpm for 8-10 minutes.

[0016] Compared with the prior art, the present invention provides a deodorant cosmetic with antibacterial and soothing effects and a preparation method thereof, which has the following beneficial effects: 1. The present invention achieves the beneficial effect of efficient deodorization by rationally proportioning menthol, zinc chloride and houttuynia cordata extract. The cooling sensation of menthol can mask odor, while zinc chloride can inhibit the growth of odor-producing microorganisms. The synergistic effect of the two can effectively reduce the generation of body odor, thereby improving the deodorizing effect of the deodorizing cosmetics. At the same time, the addition of houttuynia cordata extract further enhances the natural antibacterial properties of the deodorizing cosmetics to enhance the deodorizing effect. The addition of these three raw materials can not only destroy the bacterial structure, but also inhibit bacterial metabolism, thereby reducing the generation of odor from the source.

[0017] 2. The present invention achieves the beneficial effect of long-lasting antibacterial effect by scientifically proportioning persimmon fruit extract, houttuynia cordata extract, zinc chloride and witch hazel extract. Among them, persimmon fruit extract is rich in polyphenol compounds, such as tannic acid and catechins. Tannic acid components have an inhibitory effect on a variety of bacteria. Catechins have strong antioxidant capacity, which can effectively inhibit the growth and reproduction of bacteria, thereby reducing the generation of odor. Houttuynia cordata extract and witch hazel extract are rich in natural antibacterial substances, which can destroy bacterial structure and inhibit bacterial metabolism. Zinc chloride further inhibits bacterial growth by binding to odor molecules. The synergistic effect of these four raw materials enables the deodorizing cosmetics to effectively reduce bacterial growth, thereby keeping the skin clean and dry for a long time.

[0018] 3. The present invention achieves the beneficial effects of mild soothing and moisturizing by rationally adding aloe vera gel, chamomile extract, vitamin combination, sodium hyaluronate and glycerin. Among them, aloe vera gel and chamomile extract have anti-inflammatory and repairing effects, can reduce skin redness and itching, and provide a soothing effect, while the synergistic effect of vitamins B2, B5, C, and E in the vitamin combination can regulate the skin's oil secretion, enhance the skin's moisturizing ability and barrier function, and the introduced sodium hyaluronate and glycerin can lock in skin moisture and keep the skin hydrated. The synergistic effect of the above ingredients optimizes the soothing effect of the deodorant cosmetics while reducing skin irritation, so that the skin remains dry, odorless, and in good overall condition after use. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A flow chart was prepared for the present invention. DETAILED DESCRIPTION

[0020] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0021] See also Figure 1 , a deodorant cosmetic with antibacterial and soothing effects, the weight ratio of the raw materials of the cosmetic and their effects are as follows: Witch hazel extract 8% to 10% has astringent and soothing effects on the skin, can reduce sweat secretion, cleanse the skin surface secretions, and reduce odor; Persimmon (DIOSPYROS KAKI) fruit extract (3%-7%) is rich in polyphenolic compounds, such as tannins and catechins. Tannins have an inhibitory effect on various bacteria, and catechins have strong antioxidant capacity, which can effectively inhibit the growth and reproduction of bacteria, thereby reducing the production of odor. Aloe vera gel 12% to 15%, which moisturizes and soothes the skin, preventing it from drying out due to deodorant products while enhancing the soothing effect of the product; Glycerin 4% to 7%. Glycerin is a humectant that absorbs moisture from the air, keeps the skin moisturized, prevents the skin from producing odor due to excessive dryness, and makes the texture of cosmetics smoother and easier to apply. Chamomile extract 7% to 11%, anti-allergic, soothing, reducing skin redness and swelling; Menthol 5% to 8%, which has a cooling effect, soothes the skin, and inhibits bacterial growth; Houttuynia cordata extract 2% to 6%, which has natural antibacterial and soothing effects; Amino acids 5% to 9% regulate the pH value of the skin and reduce bacterial growth; Zinc chloride 7% to 10% inhibits odor by binding to odor molecules; Vitamin combination 4% to 8%; beeswax 1% to 3%, which can increase the hardness and stability of cosmetics, making them easier to shape and preserve. They can also form a protective film on the skin surface to prevent the loss of skin moisture, while isolating external pollution and bacteria to protect skin health; Rose water 3% to 6% has soothing and moisturizing effects, can balance the pH value of the skin, replenish moisture for the skin, and keep the skin soft and smooth; Corn starch (nano-grade) 0.5% to 1%. Corn starch has good hygroscopicity and can absorb sweat from the skin surface, keeping the skin dry and reducing the environment for odor. It has a fine texture and the skin feels comfortable after use. Sodium hyaluronate 2.5% to 4%, has moisturizing and repairing effects, can improve dry skin and enhance the skin's barrier function; Citric acid 0.9% to 2.1%, used to adjust the pH value, making cosmetics closer to the natural environment of the skin, thereby improving its stability and comfort; The remaining raw material is deionized water, which serves as a raw material fusing agent.

[0022] Specifically, the purities of witch hazel extract, persimmon fruit extract, chamomile extract and houttuynia cordata extract are all between 95% and 100%.

[0023] Specifically, the vitamin combination consists of vitamin B2, vitamin B5, vitamin C and vitamin E in a ratio of 3:3:1:5. Among them, vitamin B2 helps regulate the skin's oil secretion, reduce inflammation, improve the skin's barrier function, enhance the skin's moisturizing ability, and thus reduce the generation of odor; vitamin B5 has the effect of moisturizing and repairing the skin, can promote the regeneration of skin cells, enhance the skin's self-repair ability, make the skin healthier, and reduce odor caused by skin problems; vitamin E is a powerful antioxidant that can protect the skin from damage by free radicals and maintain skin health. Vitamin C has soothing and anti-inflammatory effects, can reduce skin redness and inflammatory reactions, and can reduce the release of inflammatory mediators by regulating the skin's immune response.

[0024] Specifically, the amino acid is sodium cocoyl glutamate, which is prepared in two steps: The first step is the preparation of coconut oil chloride: S1.1. Raw materials: coconut acid, phosgene, organic amine catalyst (such as N,N-dimethylformamide).

[0025] S1.2. Reaction conditions: Add phosgene to coconut oil in a slightly soluble state at 110-120°C and react for 5-30 hours. The reaction equation is: R-COOH+COCl2=R-COCl+HCl In the reaction formula, R represents coconut oil group; S1.3, post-processing: after the reaction is completed, coconut oil chloride is obtained by vacuum distillation Step 2: Synthesis of Sodium Cocoyl Glutamate: S2.1. Raw materials: cocoyl chloride, sodium glutamate, sodium hydroxide, hydrochloric acid, ethanol and water; S2.2, reaction conditions: Sodium glutamate is dissolved in a mixed solution of alcohol and water with a mass ratio of 1:1.0-10.0, and an aqueous solution of coconut oil chloride and sodium hydroxide with a molar ratio of 1:1.0-1.6 is added dropwise at 45-50°C for about 1.5-6 hours. The reaction equation is: R-COCl+HOOC-CH2CH2CH2CH2COONa=R-CO-NH-CH2CH2CH2CH2COONa+HCl S2.3. Reaction process: The sodium hydroxide is added at a rate and in an amount to maintain the pH value of the system between 6 and 15. After the addition is complete, the mixture is stirred for 4.5 to 6 hours, and the solvent is removed under reduced pressure at 0 to 100° C. for 0.5 to 6 hours. The mixture is cooled to 0 to 50° C., and hydrochloric acid is slowly added dropwise to maintain the pH value of the system between 0 and 10. Granular crystals are precipitated, and sodium cocoyl glutamate is obtained after filtration and drying.

[0026] Specifically, the particle size of the corn starch is 20-100 nm, and the rose water is extracted by distillation, and the pH value thereof is between 5.0 and 6.0.

[0027] Specifically, a method for preparing a deodorant cosmetic with antibacterial and soothing effects is prepared according to the raw materials and weight ratios of the above-mentioned deodorant cosmetic with antibacterial and soothing effects, comprising the following steps: Step 1. Prepare raw materials: prepare witch hazel extract, persimmon fruit extract, aloe vera gel, glycerin, chamomile extract, menthol, houttuynia cordata extract, amino acids, zinc chloride, vitamin combination, beeswax, rose water, corn starch, sodium hyaluronate, citric acid and deionized water in the formula ratio; Step 2: Raw material pretreatment: purifying witch hazel extract and chamomile extract, and preparing nano corn starch into a dispersion; Step 3, Aqueous Phase A: In a constant temperature water bath, mix aloe vera gel, glycerin, rose water, sodium hyaluronate, and deionized water until completely dissolved; Step 4, Oil Phase B: Melt beeswax, vitamin combination, menthol and zinc chloride and homogenize; Step 5, emulsification system: add the oil phase B to the water phase A and emulsify at 7000-8000 rpm high shear for 20-25 minutes to form an emulsified system; Step 6: Adding antibacterial raw materials: Cool the emulsified system formed above to 30-35°C, add the persimmon fruit extract, houttuynia cordata extract and amino acids to the nano corn starch dispersion in order, and stir at a stirring speed of 300-400 rpm for 25-30 minutes to obtain a mixed system; Step 7: Adjust pH: Add citric acid dropwise to adjust the pH value of the mixture to between 5.5 and 6. Step 8: Filling and sterilization: Use a vacuum filler to fill the mixed system into light-proof glass bottles, fill with nitrogen for protection, and pasteurize at 60-65°C for 25-30 minutes.

[0028] Specifically, the witch hazel extract and the chamomile extract are pretreated: the witch hazel extract and the chamomile extract in the formula ratio are dissolved in deionized water, and then filtered through a 0.22 μm microporous filter membrane to remove large molecular impurities, and stored at low temperature (4° C.) away from light for future use.

[0029] Specifically, corn starch pretreatment: corn starch is added to 1% to 2% xanthan gum solution, and ultrasonically treated for 30 to 45 minutes at 40 kHz and 300 W power to form a stable suspension for later use.

[0030] Specifically, in step 3, aqueous phase A: in a constant temperature water bath at 45-50°C, mix aloe vera gel, glycerin, rose water, sodium hyaluronate and deionized water, and stir at a stirring speed of 400-500 rpm for 10-15 minutes until completely dissolved.

[0031] Specifically, in step 4, the oil phase B is: beeswax, vitamin combination, menthol and zinc chloride are melted at 55-60° C., and stirred at 1000-2000 rpm for 8-10 minutes.

[0032] Specifically, by rationally proportioning menthol, zinc chloride and houttuynia cordata extract, the beneficial effect of efficient deodorization is achieved. Among them, the cooling sensation of menthol can mask odor, while zinc chloride can inhibit the growth of odor-producing microorganisms. The synergistic effect of the two can effectively reduce the generation of body odor, thereby improving the deodorizing effect of deodorizing cosmetics. At the same time, the addition of houttuynia cordata extract further increases the natural antibacterial properties of the deodorizing cosmetics to enhance the deodorizing effect. The addition of these three raw materials can not only destroy the bacterial structure, but also inhibit bacterial metabolism, thereby reducing the generation of odor from the source.

[0033] Specifically, by scientifically combining persimmon extract, houttuynia cordata extract, zinc chloride and witch hazel extract, the beneficial effect of long-lasting antibacterial effect is achieved. Among them, persimmon extract is rich in polyphenol compounds, such as tannic acid and catechins. Tannic acid components have inhibitory effects on a variety of bacteria. Catechins have strong antioxidant capacity, which enables them to effectively inhibit the growth and reproduction of bacteria, thereby reducing the generation of odor. Houttuynia cordata extract and witch hazel extract are rich in natural antibacterial substances, which can destroy bacterial structure and inhibit bacterial metabolism. Zinc chloride further inhibits bacterial growth by binding to odor molecules. The synergistic effect of these four raw materials enables deodorant cosmetics to effectively reduce bacterial growth, thereby keeping the skin clean and dry for a long time.

[0034] Specifically, by reasonably adding aloe vera gel, chamomile extract, vitamin combination, sodium hyaluronate and glycerin, the beneficial effects of gentle soothing and moisturizing are achieved. Among them, aloe vera gel and chamomile extract have anti-inflammatory and repairing effects, which can reduce skin redness and itching and provide a soothing effect. The synergistic effect of vitamins B2, B5, C, and E in the vitamin combination can regulate the skin's oil secretion, enhance the skin's moisturizing ability and barrier function, and the introduced sodium hyaluronate and glycerin can lock in skin moisture and keep the skin hydrated. The synergistic effect of the above ingredients makes the soothing effect of deodorant cosmetics optimal, while reducing skin irritation, so that the skin remains dry, odor-free, and in good overall condition after use.

[0035] According to the present invention, the raw materials and weight ratios of a deodorant cosmetic with antibacterial and soothing effects are as follows: 8% to 10% witch hazel extract; 3% to 7% persimmon extract; 12% to 15% aloe vera gel; 4% to 7% glycerin; 7% to 11% chamomile extract; 5% to 8% menthol; 2% to 6% houttuynia cordata extract; 5% to 9% amino acids; 7% to 10% zinc chloride; 4% to 8% vitamin combination; 1% to 3% beeswax; 3% to 6% rose water; 0.5% to 1% corn starch; 2.5% to 4% sodium hyaluronate; 0.9% to 2.1% citric acid. The remaining raw materials are deionized water. According to the above weight ratios, calculated as 100%, three Examples 123 are cited, and then compared with Example 123, and three comparative examples are listed respectively, as shown in Table 1 below: Table 1

[0036] The deodorant cosmetics prepared in the examples and comparative examples were put into use, and the comparison table of their effects is as follows: Table 2 Project / Indicator Example 1 Example 2 Example 3 Comparative Example 1 Comparative Example 2 Comparative Example 3 Deodorizing effect 90% 92% 95% 70% 70% 70% Antibacterial effect 85% 88% 90% 60% 65% 65% Soothing effect 80% 85% 88% 60% 60% 60% Skin irritation Low (1 point) Low (1 point) Low (1 point) Medium (3 points) Medium (3 points) Medium (3 points) Moisturizing effect 80% 85% 88% 60% 60% 60% Skin condition after use Dry and odorless Dry and odorless Dry and odorless Dry, with slight odor Dry, with slight odor Dry, with slight odor From Table 1-2 above, we can get: From the perspective of raw material composition, the comparative example is obviously inferior to the example, and a specific analysis is made from the following aspects: (1) From the perspective of deodorization effect: menthol and zinc chloride play a key role in the raw materials. In the examples, the menthol content is 5% to 8%, the zinc chloride content is -7% to 10%, and the persimmon fruit extract content is 3% to 7%. The cooling feeling of menthol can mask the odor, and zinc chloride can inhibit the growth of microorganisms that produce odor. Persimmon fruit extract contains rich polyphenol compounds, such as tannic acid and catechins. Tannic acid components have an inhibitory effect on a variety of bacteria, and catechins have a strong antioxidant capacity, which enables them to effectively inhibit the growth and reproduction of bacteria. The synergistic effect of the three helps to achieve efficient deodorization. In comparative example 1, the zinc chloride content is reduced to 5%, and the persimmon fruit extract is increased to 10%. In comparative example 2, the persimmon fruit extract is increased to 10%, but the antibacterial and deodorizing effects of the prepared deodorizing cosmetics are weakened. Therefore, the increase or decrease of persimmon fruit extract to a certain extent still cannot control the source of odor. Only when the raw material ratios within the examples are used can the odor be controlled from the source.

[0037] (2) From the perspective of antibacterial effect: Persimmon fruit extract, Houttuynia cordata extract, zinc chloride and Hamamelis virginiana extract are the main antibacterial ingredients in the raw materials. In the examples, the content of Houttuynia cordata extract is 2% to 6%, and the content of Hamamelis virginiana extract is 8% to 10%, so that the zinc chloride content in the deodorant cosmetic is sufficient. The natural antibacterial substances contained in these three raw materials can destroy the bacterial structure and inhibit bacterial metabolism, so that the antibacterial rate reaches 85% to 90%. In Comparative Example 1, the content of Houttuynia cordata extract is reduced to 1%, and the zinc chloride content is reduced, so that the antibacterial system of the deodorant cosmetic is unbalanced when it is used, and the antibacterial rate is only 60%. Comparative Examples 2 and 3 also have unsatisfactory antibacterial effects due to insufficient or poor proportions of key antibacterial ingredients.

[0038] (3) From the perspective of soothing effect: the aloe vera gel, chamomile extract and vitamin combination ingredients in the raw materials help soothe the skin. In the embodiment, the aloe vera gel content is 12% to 15%, the chamomile extract content is 7% to 11%, and the vitamin combination content is 4% to 8%. The polysaccharides and amino acids in the aloe vera gel, the flavonoids in the chamomile and the vitamins can synergistically resist inflammation and repair damaged skin, making its soothing effect reach 80% to 88%. In comparative example 2, the chamomile extract is reduced to 5%, and the soothing ingredients are insufficient; comparative examples 1 and 3 also have poor soothing effects because the proportions of the relevant ingredients are not optimal, which is only 60%.

[0039] (4) From the perspective of skin irritation: Sodium hyaluronate and amino acid components in the raw materials can reduce skin irritation. In the examples, the amino acid content is 5% to 9%, and the sodium hyaluronate content is 2.5% to 4%. These two components can form a protective film in the deodorant cosmetics, thereby reducing the irritation of other ingredients to the skin, making its skin irritation only low (1 point). In the comparative example, the ratio of these two components was not optimized, resulting in the skin irritation increased to medium (3 points).

[0040] (4) In terms of skin moisturizing effect: glycerin, sodium hyaluronate and rose water in the raw materials are responsible for moisturizing. In the embodiment, the glycerin content is 4% to 7%, the sodium hyaluronate content is 2.5% to 4%, and the rose water content is 3% to 6%. The combination of the three can lock the moisture of the skin, making the moisturizing effect of the deodorant cosmetics reach 80% to 88%. However, the content of the relevant ingredients in the comparative example is low and the proportion is not good, so its moisturizing effect is only 60%.

[0041] (5) In terms of user satisfaction: Since the embodiment has excellent performance in various functions and provides a dry and odor-free user experience, the user satisfaction rate is as high as 90% to 95%. However, due to the poor performance of the control group in many aspects, the user satisfaction rate is only 60% to 65%.

[0042] Summary: Through the reasonable proportion and synergistic effect of the above ingredients, the present invention makes the deodorant cosmetics not only perform well in deodorization and antibacterial, but also have advantages in soothing and moisturizing, providing users with a comprehensive skin care experience.

[0043] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A deodorant cosmetic with antibacterial and soothing effects, characterized in that: The raw materials of the cosmetic and their weight ratios are: 8% to 10% witch hazel extract; 3% to 7% persimmon fruit extract; 12% to 15% aloe vera gel; 4% to 7% glycerin; 7% to 11% chamomile extract; 5% to 8% menthol; 2% to 6% houttuynia cordata extract; 5% to 9% amino acids; 7% to 10% zinc chloride; 4% to 8% vitamin combination; 1% to 3% beeswax; 3% to 6% rose water; 0.5% to 1% corn starch; 2.5% to 4% sodium hyaluronate; 0.9% to 2.1% citric acid; and the remaining raw materials are deionized water.

2. The deodorant cosmetic with antibacterial and soothing effects according to claim 1, characterized in that: The purities of the witch hazel extract, persimmon fruit extract, chamomile extract and houttuynia cordata extract are all between 95% and 100%.

3. The deodorant cosmetic with antibacterial and soothing effects according to claim 1, characterized in that: The vitamin combination consists of vitamin B2, vitamin B5, vitamin C and vitamin E in a ratio of 3:3:1:

5.

4. The deodorant cosmetic with antibacterial and soothing effects according to claim 1, characterized in that: The amino acid is sodium cocoyl glutamate, which is prepared in two steps, specifically: The first step is the preparation of coconut oil chloride: S1.

1. Raw materials: coconut acid, phosgene and N,N-dimethylformamide; S1.

2. Reaction conditions: Add phosgene to coconut oil in a slightly soluble state at 110-120°C and react for 5-30 hours. The reaction equation is: R-COOH+COCl2=R-COCl+HCl In the reaction formula, R represents coconut oil group; S1.3, post-processing: After the reaction is completed, coconut oil chloride is obtained by vacuum distillation; Step 2: Synthesis of Sodium Cocoyl Glutamate: S2.

1. Raw materials: cocoyl chloride, sodium glutamate, sodium hydroxide, hydrochloric acid, ethanol and water; S2.2, reaction conditions: Sodium glutamate is dissolved in a mixed solution of alcohol and water with a mass ratio of 1:1.0-10.0, and an aqueous solution of coconut oil chloride and sodium hydroxide with a molar ratio of 1:1.0-1.6 is added dropwise at 45-50°C for about 1.5-6 hours. The reaction equation is: R-COCl+HOOC-CH2CH2CH2CH2COONa=R-CO-NH-CH2CH2CH2CH2COONa+HCl S2.

3. Reaction process: The sodium hydroxide is added at a rate and in an amount to maintain the pH value of the system between 6 and 15. After the addition is complete, the mixture is stirred for 4.5 to 6 hours, and the solvent is removed under reduced pressure at 0 to 100° C. for 0.5 to 6 hours. The mixture is cooled to 0 to 50° C., and hydrochloric acid is slowly added dropwise to maintain the pH value of the system between 0 and 10. Granular crystals are precipitated, and sodium cocoyl glutamate is obtained after filtration and drying.

5. The deodorant cosmetic with antibacterial and soothing effects according to claim 1, characterized in that: The particle size of the corn starch is 20-100 nm, and the rose water is extracted by distillation, and the pH value thereof is between 5.0 and 6.

0.

6. A method for preparing a deodorant cosmetic with antibacterial and soothing effects, characterized in that: The preparation of the raw materials and weight ratio of the deodorant cosmetic with antibacterial and soothing effects according to claim 1 comprises the following steps: Step 1. Prepare raw materials: prepare witch hazel extract, persimmon fruit extract, aloe vera gel, glycerin, chamomile extract, menthol, houttuynia cordata extract, amino acids, zinc chloride, vitamin combination, beeswax, rose water, corn starch, sodium hyaluronate, citric acid and deionized water in the formula ratio; Step 2: Raw material pretreatment: purifying witch hazel extract and chamomile extract, and preparing nano corn starch into a dispersion; Step 3, Aqueous Phase A: In a constant temperature water bath, mix aloe vera gel, glycerin, rose water, sodium hyaluronate, and deionized water until completely dissolved; Step 4, Oil Phase B: Melt beeswax, vitamin combination, menthol and zinc chloride and homogenize; Step 5, emulsification system: add the oil phase B to the water phase A and emulsify at 7000-8000 rpm high shear for 20-25 minutes to form an emulsified system; Step 6: Adding antibacterial raw materials: Cool the emulsified system formed above to 30-35°C, add the persimmon fruit extract, houttuynia cordata extract and amino acids to the nano corn starch dispersion in order, and stir at a stirring speed of 300-400 rpm for 25-30 minutes to obtain a mixed system; Step 7: Adjust pH: Add citric acid dropwise to adjust the pH value of the mixture to between 5.5 and 6. Step 8: Filling and sterilization: Use a vacuum filler to fill the mixed system into light-proof glass bottles, fill with nitrogen for protection, and pasteurize at 60-65°C for 25-30 minutes.

7. The deodorant cosmetic with antibacterial and soothing effects and the preparation method thereof according to claim 6, characterized in that: The witch hazel extract and chamomile extract pretreatment: the witch hazel extract and chamomile extract in a formula ratio are dissolved in deionized water, and then filtered through a 0.22 μm microporous filter membrane for standby use.

8. The deodorant cosmetic with antibacterial and soothing effects and its preparation method according to claim 6, characterized in that: The corn starch pretreatment comprises the following steps: adding corn starch to a 1% to 2% xanthan gum solution, and ultrasonically treating the solution for 30 to 45 minutes at 40 kHz and 300 W power to form a stable suspension for later use.

9. The deodorant cosmetic with antibacterial and soothing effects and its preparation method according to claim 6, characterized in that: In step 3, the aqueous phase A is prepared by mixing aloe vera gel, glycerin, rose water, sodium hyaluronate and deionized water in a constant temperature water bath at 45-50° C., and stirring at a stirring speed of 400-500 rpm for 10-15 minutes until completely dissolved.

10. The deodorant cosmetic with antibacterial and soothing effects and the preparation method thereof according to claim 6, characterized in that: In the oil phase B of step 4, beeswax, vitamin combination, menthol and zinc chloride are melted at 55-60° C. and stirred at 1000-2000 rpm for 8-10 minutes.

Images