Anti-oxidation, moisturizing and anti-cracking hand cream and preparation method thereof

Abstract

The invention provides an antioxidant moisturizing anti-cracking hand cream which is prepared from the following components in parts by weight: 5 parts of Tibet Plateau rapeseed oil, 1 part of olive emulsifying wax, 3 parts of glycerol, 20 parts of rose water, 0.5 part of vitamin E oil, 0.3 part of allantoin and 2 parts of bletilla striata extract. Through natural component compounding and precise process control, the anti-oxidation moisturizing anti-cracking hand cream realizes synergism of three effects of oxidation resistance, moisturizing and anti-cracking, and is especially suitable for hand protection requirements of frequent contact with a cleaning agent in a plateau dry environment.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of cosmetics, in particular to an anti-oxidation moisturizing and anti-cracking hand cream and a preparation method thereof. BACKGROUND

[0002] Hand cream is a skin care product specially designed for hand skin, and its main functions are to moisturize, nourish and repair the skin, prevent dryness, roughness and cracking, and form a protective film to lock in moisture.

[0003] Most of the hand creams on the market have the following defects: 1. In cold wind environment, the moisturizing duration of most products is less than 2 hours, and frequent reapplication is required.

[0004] 2. Relying on petrolatum and other occlusive agents only forms a physical barrier, lacks active ingredients (such as collagen stimulants) that promote dermal repair, and only alleviates surface pain for deep cracks, without solving the problem of synergistic effects of excessive keratin hyperplasia and dermal damage.

[0005] 3. Frequent hand washing groups (such as medical staff) need to consider both antibacterial and repair, therefore, an anti-oxidation moisturizing and anti-cracking hand cream and a preparation method thereof are proposed. SUMMARY

[0006] Therefore, the present application provides an anti-oxidation moisturizing and anti-cracking hand cream and a preparation method thereof to solve or alleviate the technical problems in the prior art, and at least provides a beneficial choice.

[0007] The technical scheme of the present application is as follows: an anti-oxidation moisturizing and anti-cracking hand cream, consisting of Qinghai-Tibet Plateau rapeseed oil 5 parts, olive emulsifying wax 1 part, glycerol 3 parts, rose water 20 parts, vitamin E oil 0.5 parts, allantoin 0.3 parts and bletilla striata extract 2 parts by weight.

[0008] In some embodiments, the rose water is composed of distilled water and rose essential oil, and the mass ratio of distilled water to rose essential oil is 9:1.

[0009] A preparation method of an anti-oxidation moisturizing and anti-cracking hand cream, comprising the following steps: S1, adding the water phase to the homogenizer for stirring, at this time slowly pouring the oil phase into the water phase and stirring for 10 minutes; S2, when the temperature of the mixed liquid of the water phase and the oil phase drops to 45-50℃, adding the mixed liquid of vitamin E oil and allantoin, and gently stirring for five minutes to form an emulsion; S3, then quickly inject the emulsion into a container for sealing, and after sealing, store in a refrigerator for 24 hours to stabilize the cream body crystallization, thereby forming the hand cream.

[0010] In some embodiments, in the S1, the oil phase is to heat the rapeseed oil and olive emulsified wax to 75-80 DEG C until the olive emulsified wax is completely dissolved.

[0011] In some embodiments, in the S1, the water phase is to mix rose water or pure water, glycerol and bletilla striata extract and heat to 80 DEG C plus or minus 2 DEG C to ensure the stability of emulsification.

[0012] In some embodiments, the rotation speed of the homogenizer is 3000-3500 r / min.

[0013] In some embodiments, in the S3, the temperature of the emulsion when injected into the container needs to be less than 35 DEG C to avoid condensate pollution.

[0014] In some embodiments, 0.5% phenoxy ethanol is added to the emulsion in the S2, which can make the hand cream light and cool storage up to 6 months.

[0015] The embodiments of the present application have the following advantages due to the above technical solutions: The present application realizes the synergistic effect of antioxidant, moisturizing and anti-cracking through the compounding of natural ingredients and precise process control, and is especially suitable for the hand care needs in dry highland environment and frequent contact with cleaning agents.

[0016] The above summary is only for the purpose of the description and is not intended to limit in any way. DETAILED DESCRIPTION

[0017] Hereinafter, only some exemplary embodiments are simply described. As those skilled in the art can recognize, the described embodiments can be modified in various different ways without departing from the spirit or scope of the present application.

[0018] It should be noted that the terms "first", "second", "symmetric", "array", "provided in", "provided with" and the like are only used for distinguishing description and position description purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Therefore, the features limited by "first", "symmetric" and the like can explicitly or implicitly include one or more features; similarly, for some features that are not limited in number by "two", "three" and the like, it should be noted that the features also belong to explicitly or implicitly including one or more feature quantities;

[0019] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "fixing" and the like should be understood in a broad sense; for example, it can be fixed connection, or detachable connection, or integral molding; it can be mechanical connection, it can be direct connection, it can be welding, it can be indirect connection through an intermediate medium, it can be the internal communication of two elements or the interaction relationship of two elements.

[0020] The embodiment of the present application provides an anti-oxidation moisturizing anti-cracking hand cream, which is composed of the following components in parts by weight: 5 parts of Qingzang plateau rapeseed oil, 1 part of olive emulsified wax, 3 parts of glycerol, 20 parts of rose water, 0.5 part of vitamin E oil, 0.3 part of allantoin and 2 parts of bletilla striata extract.

[0021] In the embodiment, specifically, the rose water is composed of distilled water and rose essential oil, and the mass ratio of the distilled water to the rose essential oil is 9:1.

[0022] A preparation method of an anti-oxidation moisturizing anti-cracking hand cream comprises the following steps: S1, adding the water phase into a homogenizer for stirring, at this time, slowly pouring the oil phase into the water phase and stirring for 10 minutes; S2, when the temperature of the mixed solution of the water phase and the oil phase decreases to 45-50 DEG C, adding the mixed solution of vitamin E oil and allantoin, so as to gently stir for five minutes, so as to form an emulsion; S3, then quickly injecting the emulsion into a container for sealing, after sealing, cold storage for 24 hours to make the cream crystallization stable, so as to form the hand cream.

[0023] In the embodiment, specifically, in S1, the oil phase is rapeseed oil and olive emulsified wax, which are heated to 75-80 DEG C in water, until the olive emulsified wax is completely dissolved.

[0024] In the embodiment, specifically, in S1, the water phase is rose water or pure water, glycerol and bletilla striata extract, which are mixed and heated to 80±2 DEG C, for ensuring the stability of emulsification.

[0025] In the embodiment, specifically, the rotating speed of the homogenizer is 3000-3500 r / min.

[0026] In the embodiment, specifically, in S3, the temperature of the emulsion when being injected into the container needs to be less than 35 DEG C, to avoid condensate pollution.

[0027] In the embodiment, specifically, in the emulsion in S2, 0.5% phenoxy ethanol is added, so that the hand cream can be stored in the dark and cool place for 6 months.

[0028] In the embodiment, specifically, Olive emulsifying wax replaces ordinary emulsifiers, with both emulsifying and film-forming functions, improving crack resistance. Allantoin + Bletilla striata form a "repair double nucleus", synergistically enhancing the treatment of deep cracks (such as winter freeze cracks). Rose water provides natural fragrance and soothing effect, reducing the addition of artificial fragrance.

[0029] In this embodiment, specifically, the oil phase into the water phase can form smaller oil droplets (particle size <1 μm), improving the stability of the emulsion.

[0030] In this embodiment, specifically, In this embodiment, specifically, I. Verification of antioxidant function 1. Experimental method and object Test method: DPPH free radical scavenging rate (in vitro): according to "Guidelines for Testing the Antioxidant Properties of Cosmetics"; Hydroxyl radical (·OH) clearance rate (in vitro): ultraviolet spectrophotometry; Apple oxidation inhibition experiment (semi-in vivo): simulate the oxidation environment of human skin; Test object: In vitro sample: lipid extract of hand cream (n=6 groups of parallel samples); Human samples: 30 healthy volunteers (18 women, 12 men, aged 25-45 years old), used 2 times a day for 4 weeks; 2. Experimental results and data Human test: after 4 weeks of use, the content of lipid peroxide (MDA) in the skin of the volunteers' hands decreased by 38.7% (p<0.01).

[0031] 3. Mechanism analysis Rapeseed oil polyphenols (α-linolenic acid) and vitamin E synergistically scavenge free radicals and block the oxidation chain reaction.

[0032] Bletilla striata polysaccharide reduces melanin deposition by inhibiting tyrosinase activity (indirect antioxidant).

[0033] II. Verification of moisturizing function 1. Experimental method and object Test method: Skin moisture content: capacitance method (Corneometer® CM825); Transdermal water loss (TEWL): Tewameter® TM300; Tribological test: Micro-friction tester (CETR UMT) to measure skin friction factor; Test subjects: Lab: Artificial skin model (n=5 groups); Human: 30 volunteers with dry skin (20 females, 10 males), 3 times a day for 4 weeks; 2. Experimental results and data (1) Changes in skin moisture content (4 weeks) (2) TEWL improvement rate (4 weeks of use) (3) Tribological test results Friction factor change: After use, the friction factor increased from 0.35 to 1.45 (females) and 1.31 (males), indicating an increase in skin adhesion (i.e., improved moisturization).

[0034] Moisture retention duration: The average retention time was 350 minutes.

[0035] III. Verification of Anti-cracking and Repair Function 1. Experimental methods and subjects Test method: Clinical Cracking Score: Based on the "Skin Cracking Severity Grading Standard" (0-4); Histological examination: Skin biopsy (to detect collagen density and stratum corneum integrity); Extreme environment simulation: -5°C environment, wind speed 5 m / s, continuous exposure for 2 hours; Test subjects: 50 patients with deep cracks (medical staff, construction workers); 10 coal miners (extreme dry environment); 2. Experimental results and data (1) Clinical Cracking Repair Rate (7 days) (2) Histological repair data (3) Extreme environment protection effect Frostbite incidence: After use, the incidence of frostbite in coal miners decreased by 70% (the control group only decreased by 30%).

[0036] Aluminum pipe frost resistance: The paste can still be squeezed at -10°C, with a ductility retention rate of >80%.

[0037] IV. Comprehensive Efficacy Comparison Table Human test volunteer feedback (n=50) Antioxidant: Canola oil polyphenol + VE combination free radical scavenging efficiency > 89%, significantly delay the oxidation of hand skin (p<0.01).

[0038] Moisturizing: Glycerin + allantoin increases stratum corneum water content by 45%, TEWL decreases by 42%, moisturizing duration is 6 hours (cold environment).

[0039] Anti-cracking repair: Bletilla striata promotes collagen regeneration + allantoin softens keratin, 7-day chapped skin repair rate is 92%, and the risk of frostbite for coal mine workers is reduced by 70%.

[0040] In an extremely dry environment, the user can improve the repair efficiency by 40% by cooperating with thick application at night + cotton gloves closure.

[0041] The above is only a specific embodiment of the present application, but the protection scope of the present application is not limited to this. Any person skilled in the art can easily think of various changes or replacements within the technical range disclosed by the present application, which should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A hand cream with antioxidant, moisturizing and anti-cracking properties, characterized in that: The invention is composed of the following ingredients by weight: 5 parts of Qinghai-Tibet Plateau rapeseed oil, 1 part of olive emulsified wax, 3 parts of glycerin, 20 parts of rose water, 0.5 parts of vitamin E oil, 0.3 parts of allantoin and 2 parts of Bletilla striata extract.

2. The anti-oxidation, moisturizing and anti-cracking hand cream according to claim 1, characterized in that: The rose water is prepared by mixing distilled water and rose essential oil, and the mass ratio of the distilled water to the rose essential oil is 9:

1.

3. A method for preparing an anti-oxidation, moisturizing and anti-cracking hand cream, characterized in that: The following steps are involved: S1. Add the water phase to the homogenizer and stir. Then slowly pour the oil phase into the water phase and stir for 10 minutes. S2. When the temperature of the mixture of the water phase and the oil phase drops to 45-50° C., add the mixture of vitamin E oil and allantoin and gently stir for five minutes to form an emulsion; S3. After that, the emulsion is quickly injected into the container and sealed. After sealing, the container is refrigerated for 24 hours to stabilize the crystallization of the paste, thereby forming a hand cream.

4. The method for preparing the anti-oxidation, moisturizing and anti-cracking hand cream according to claim 3, characterized in that: In S1, the oil phase is prepared by heating rapeseed oil and olive emulsified wax to 75-80° C. in a water-tight manner until the olive emulsified wax is completely dissolved.

5. The method for preparing the anti-oxidation, moisturizing and anti-cracking hand cream according to claim 3, characterized in that: In S1, the aqueous phase is prepared by mixing rose water or purified water, glycerin and Bletilla striata extract and heating the mixture to 80±2° C. to ensure the stability of the emulsification.

6. The method for preparing the anti-oxidation, moisturizing and anti-cracking hand cream according to claim 3, characterized in that: The rotation speed of the homogenizer is 3000-3500r / min.

7. The method for preparing the anti-oxidation, moisturizing and anti-cracking hand cream according to claim 3, characterized in that: In the step S3, the temperature of the emulsion when injected into the container must be less than 35°C to avoid contamination by condensed water.

8. The method for preparing the anti-oxidation, moisturizing and anti-cracking hand cream according to claim 3, characterized in that: Adding 0.5% phenoxyethanol to the emulsion in S2 can keep the hand cream away from light and in a cool place for up to 6 months.

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