High-moisture tea leaf enzyme hand cream and preparation method thereof

Abstract

The application discloses a high-moisture tea leaf enzyme hand cream and a preparation method thereof, and belongs to the technical field of cosmetics. The high-moisture tea leaf enzyme hand cream comprises tea leaf extract, dipotassium glycyrrhizate, panthenol, vaseline, phytosteryl oleate, shea butter, myristyl myristate, beeswax, mineral oil, sorbitol, glycerol, isopropyl myristate and a solvent. The mass ratio of the tea leaf extract, the shea butter, the myristyl myristate, the beeswax and the isopropyl myristate is 1-4:0.05-0.3:0.05-0.3:0.05-0.3:1.5-4. The preparation method comprises the following steps: mixing and heating raw materials in a formula amount, stirring, homogenizing, cooling and obtaining the high-moisture tea leaf enzyme hand cream. The tea leaf enzyme hand cream has the advantages of high moisture retention and stability, can be used externally on skin, has good moisture retention, is refreshing and non-greasy, has good smoothness and is easy to apply.

Description

Technical Field

[0001] The invention belongs to the technical field of cosmetics and relates to a highly moisturizing tea enzyme hand cream and a preparation method thereof. Background Art

[0002] Hands play a vital role in daily life. However, long-term labor or poor working conditions can easily lead to rough hands. Hand cream can form a protective film on the hands to better protect and nourish the skin, effectively preventing roughness and cracking, softening the cuticle, and maximizing moisture retention. Hand cream is suitable for all seasons, especially in the dry seasons of autumn and winter, as it can keep hands moisturized for a long time, making it very popular.

[0003] CN102772315A discloses an anti-cracking hand cream, which is formulated with purified water, glycerin, urea, glyceryl isostearate, monoglyceride of stearate, cetyl alcohol, vaseline, liquid paraffin, vitamin E acetate, vitamin D and benzalkonium chloride. This invention not only inherits the moisturizing and emollient effects of existing hand creams on the market, but also effectively prevents cracking of hands and feet due to the addition of benzalkonium chloride in its ingredients.

[0004] CN105832586A discloses a rose extract moisturizing hand cream. Its ingredients, by weight, are: 10-22 parts base oil, 2-7 parts emulsifying dispersant, 0.5-1.4 parts thickener, 2-10 parts humectant, 0.01-0.09 parts rose essential oil, 0.05-0.3 parts rose water, and 0.1-0.5 parts rose essence. This hand cream provides long-lasting, deep moisturizing, reduces water loss, and leaves hands moisturized and delicate.

[0005] CN110025495A discloses a whitening and moisturizing hand cream containing tea polyphenols and its preparation method. The cream comprises the following ingredients: 40-50 parts deionized water, 4-6 parts tea polyphenols, 10-15 parts glycerin, 15-20 parts olive oil, 3-5 parts rose essential oil, 2-5 parts vitamin E capsules, 5-10 parts Tween 80, 3-8 parts petrolatum, and 8-15 parts sweet almond oil. The cream can address a range of issues including aging, darkening, dryness, and weak antibacterial properties of hand skin.

[0006] There are a wide variety of hand creams on the market. How to develop a tea enzyme hand cream with high moisturizing effect and improve the company's market competitiveness is a technical problem that needs to be solved urgently. Summary of the Invention

[0007] In order to solve the above technical problems, the present invention provides a highly moisturizing tea enzyme hand cream and a preparation method thereof. The tea enzyme hand cream prepared by the combined use of tea extract, avocado tree fat, myristyl myristate, beeswax and isopropyl myristate has the advantages of high moisturizing properties and good stability, and can be used for external skin use.

[0008] In order to achieve the above object, the present invention adopts the following technical solutions:

[0009] The invention provides a moisturizing tea enzyme hand cream, which comprises tea extract, dipotassium glycyrrhizate, panthenol, vaseline, phytosteryl oleate, shea butter, myristyl myristate, beeswax, mineral oil, sorbitol, glycerin, isopropyl myristate and a solvent.

[0010] Preferably, the mass ratio of the tea extract, avocado oil, myristyl myristate, beeswax and isopropyl myristate is 1-4: 0.05-0.3: 0.05-0.3: 0.05-0.3: 1.5-4.

[0011] Further preferably, the mass ratio of the tea extract, avocado oil, myristyl myristate, beeswax and isopropyl myristate is 1.5:0.1:0.1:0.075:1.5.

[0012] Further preferably, the highly moisturizing tea enzyme hand cream comprises, by weight percentage, 1%-4% tea extract, 0.05%-0.3% dipotassium glycyrrhizate, 0.05%-0.15% panthenol, 0.5%-5% petrolatum, 0.1%-0.15% phytosteryl oleate, 0.05%-0.3% avocado butter, 0.05%-0.3% myristyl myristate, 0.05%-0.3% beeswax, 1%-5% mineral oil, 1%-5% sorbitol, 0.5%-3% glycerin, 1.5%-4.0% isopropyl myristate and the remainder solvent.

[0013] The mineral oil in the present invention is No. 26 cosmetic grade white oil, and the solvent is water.

[0014] The highly moisturizing tea enzyme hand cream of the present invention further comprises ceteareth-25, xylitol, polydimethylsiloxane and cetyl alcohol.

[0015] Preferably, the highly moisturizing tea enzyme hand cream further comprises, by weight percentage, 0.5%-2.5% of cetearyl alcohol polyether-25, 0.5%-2% of xylitol, 0.5%-2% of polydimethylsiloxane and 2%-4.2% of cetyl alcohol.

[0016] The highly moisturizing tea enzyme hand cream of the present invention further comprises a preservative. Preferably, the preservative is at least one of methylparaben, propylparaben, and bis(hydroxymethyl)imidazolidinyl urea.

[0017] More preferably, the preservatives are methylparaben, propylparaben, and bis(hydroxymethyl)imidazolidinyl urea. Even more preferably, the mass ratio of methylparaben, propylparaben, and bis(hydroxymethyl)imidazolidinyl urea is 1-2:0.5-1.5:2-4.

[0018] The highly moisturizing tea enzyme hand cream of the present invention comprises, by weight percentage, 1%-4% tea extract, 0.05%-0.3% dipotassium glycyrrhizate, 0.5%-2% polydimethylsiloxane, 0.5%-5% petrolatum, 0.1%-0.15% phytosteryl oleate, 1%-3% glyceryl stearate, 0.05%-0.3% avocado oil, %, Myristyl Myristate 0.05%-0.3%, Beeswax 0.05%-0.3%, Mineral Oil 1%-5%, Sorbitol 1%-5%, Glycerin 0.5%-3%, Ceteareth-25 0.5%-2.5%, Xylitol 0.5%-2%, Panthenol 0.05%-0.15%, Cetyl Alcohol 2%-4.2%, Isopropyl Myristate 1.5%-4.0%, Methylparaben 0.1%-0.2%, Propylparaben 0.05%-0.15%, Bis(hydroxymethyl)imidazolidinyl Urea 0.2%-0.4% and the remainder solvent.

[0019] Preferably, the highly moisturizing tea enzyme hand cream comprises, by weight percentage, 3% tea extract, 1% dipotassium glycyrrhizate, 1% polydimethylsiloxane, 2% petrolatum, 0.15% phytosteryl oleate, 2% glyceryl stearate, 0.2% avocado butter, 0.2% myristyl myristate, 0.15% beeswax, 2% mineral oil, 3% sorbitol, 2% glycerin, 1.5% ceteareth-25, 1% xylitol, 0.1% panthenol, 3% cetyl alcohol, 3% isopropyl myristate, 0.15% methylparaben, 0.1% propylparaben, 0.3% bis(hydroxymethyl)imidazolidinyl urea, and the remainder solvent.

[0020] The present invention also provides a preparation method of the above-mentioned highly moisturizing tea enzyme hand cream, comprising the following steps: mixing the raw materials in the formula amount, heating, stirring, homogenizing, and cooling to obtain the hand cream.

[0021] Preferably, the heating is to 70-75° C., the homogenization speed is 2000-3500 rpm, and the homogenization time is 3-8 minutes; more preferably, the homogenization speed is 3000 rpm, and the homogenization time is 5 minutes.

[0022] Preferably, the cooling is cooling to room temperature. In the present invention, the room temperature is not higher than 30°C, preferably 4-30°C, and more preferably 20-25°C.

[0023] The beneficial effects of the present invention are:

[0024] (1) The present invention utilizes tea extract, avocado oil, myristyl myristate, beeswax and isopropyl myristate to prepare a tea enzyme hand cream having the advantages of high moisturizing properties and stability, and can be used for external skin application.

[0025] (2) The tea enzyme hand cream of the present invention has good moisturizing properties, is refreshing and non-greasy, and is smooth and easy to apply.

[0026] (3) The preparation method of the present invention is simple and suitable for large-scale promotion and application. DETAILED DESCRIPTION

[0027] The following describes the embodiments of the present invention through specific examples. Those skilled in the art will readily understand the other advantages and benefits of the present invention from the disclosure herein. The present invention may also be implemented or applied through various other specific embodiments, and the details in this specification may be modified or altered based on different viewpoints and applications without departing from the spirit of the present invention.

[0028] Before further describing the specific embodiments of the present invention, it should be understood that the scope of protection of the present invention is not limited to the specific embodiments described below; it should also be understood that the terms used in the examples of the present invention are for describing specific embodiments rather than for limiting the scope of protection of the present invention.

[0029] When numerical ranges are given in the examples, it should be understood that, unless otherwise specified herein, both endpoints of each numerical range and any value between the two endpoints may be selected. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the art to which the present invention belongs.

[0030] The present invention does not limit the sources of the raw materials used. Unless otherwise specified, the raw materials used in the present invention are common commercial products in the technical field.

[0031] The highly moisturizing green tea enzyme hand cream of the present invention can be prepared by the following method, but the present invention is not limited to the following examples. The raw material information used in the present invention is shown in Table 1.

[0032] Table 1 Raw material information

[0033]

[0034] Example 1 Highly Moisturizing Green Tea Enzyme Hand Cream

[0035] The formula of the highly moisturizing green tea enzyme hand cream of this Example 1 is shown in Table 2.

[0036] Table 2 Formula of highly moisturizing green tea enzyme hand cream in Example 1

[0037]

[0038] The preparation method of the highly moisturizing tea enzyme hand cream comprises the following steps: mixing the raw materials in the formula amount, heating to 70-75° C., stirring at 3000 rpm, homogenizing for 5 minutes, and cooling to room temperature (20° C.).

[0039] Example 2 Highly Moisturizing Green Tea Enzyme Hand Cream

[0040] The formula of the highly moisturizing green tea enzyme hand cream of Example 2 is shown in Table 3. The difference from Example 1 is that the mass ratios of tea extract, avocado oil, myristyl myristate, beeswax and isopropyl myristate are different.

[0041] Table 3 Formula of Highly Moisturizing Green Tea Enzyme Hand Cream in Example 2

[0042]

[0043] The preparation method is the same as that of Example 1.

[0044] Example 3 Highly Moisturizing Green Tea Enzyme Hand Cream

[0045] The formula of the highly moisturizing green tea enzyme hand cream of Example 3 is shown in Table 4. The difference from Example 1 is that the mass ratios of tea extract, avocado butter, myristyl myristate, beeswax and isopropyl myristate are different.

[0046] Table 4 Formula of Highly Moisturizing Green Tea Enzyme Hand Cream in Example 3

[0047]

[0048] The preparation method is the same as that of Example 1.

[0049] Example 4 Highly Moisturizing Green Tea Enzyme Hand Cream

[0050] The formula of the highly moisturizing green tea enzyme hand cream of Example 4 is shown in Table 5. The difference from Example 1 is that the amounts of ceteareth-25, xylitol, dimethicone and cetyl alcohol are different.

[0051] Table 5 Formula of Highly Moisturizing Green Tea Enzyme Hand Cream in Example 4

[0052]

[0053] The preparation method is the same as that of Example 1.

[0054] Example 5 Highly Moisturizing Green Tea Enzyme Hand Cream

[0055] The formula of the highly moisturizing green tea enzyme hand cream of Example 5 is shown in Table 6. The difference from Example 1 is that the amounts of ceteareth-25, xylitol, dimethicone and cetyl alcohol are different.

[0056] Table 6 Formula of Highly Moisturizing Green Tea Enzyme Hand Cream in Example 5

[0057]

[0058] The preparation method is the same as that of Example 1.

[0059] Comparative Example 1 Highly Moisturizing Green Tea Enzyme Hand Cream

[0060] The formula of the highly moisturizing green tea enzyme hand cream of this comparative example 1 is shown in Table 7. The difference from Example 1 is that the mass ratio of tea extract, avocado tree fruit fat, myristyl myristate, beeswax and isopropyl myristate is not within the scope of protection claimed in the present invention.

[0061] Table 7 Formula of Highly Moisturizing Green Tea Enzyme Hand Cream in Comparative Example 1

[0062]

[0063] The preparation method is the same as that of Example 1.

[0064] Comparative Example 2 Highly Moisturizing Green Tea Enzyme Hand Cream

[0065] The formula of the highly moisturizing green tea enzyme hand cream of this comparative example 2 is shown in Table 8. The difference from Example 1 is that the mass ratio of tea extract, avocado tree fat, myristyl myristate, beeswax and isopropyl myristate is not within the scope of protection claimed in the present invention.

[0066] Table 8 Formula of Highly Moisturizing Green Tea Enzyme Hand Cream in Comparative Example 2

[0067]

[0068] The preparation method is the same as that of Example 1.

[0069] Comparative Example 3 Highly Moisturizing Green Tea Enzyme Hand Cream

[0070] The formula of the highly moisturizing green tea enzyme hand cream of this comparative example 3 is shown in Table 9. The difference from Example 1 is that the amounts of ceteareth-25, xylitol, dimethicone and cetyl alcohol are not within the scope of protection claimed in the present invention.

[0071] Table 9 Formula of Highly Moisturizing Green Tea Enzyme Hand Cream in Comparative Example 3

[0072]

[0073] The preparation method is the same as that of Example 1.

[0074] Comparative Example 4 Highly Moisturizing Green Tea Enzyme Hand Cream

[0075] The formula of the highly moisturizing green tea enzyme hand cream of this comparative example 4 is shown in Table 10. The difference from Example 1 is that the amounts of ceteareth-25, xylitol, dimethicone and cetyl alcohol are not within the scope of protection claimed in the present invention.

[0076] Table 10 Formula of Highly Moisturizing Green Tea Enzyme Hand Cream in Comparative Example 4

[0077]

[0078] The preparation method is the same as that of Example 1.

[0079] 1. Stability evaluation

[0080] The tea enzyme hand cream prepared in the embodiment and comparative example was placed at 40°C for 24 hours, then placed at -5°C for 24 hours, and then taken out. The cycle was repeated 7 times at intervals of 24 hours. After returning to room temperature, the appearance of the tea enzyme hand cream was observed, and the results were compared and evaluated with those at day 0. The results are shown in Table 11.

[0081] Table 11 Stability evaluation results of tea enzyme hand creams prepared in Examples and Comparative Examples

[0082]

[0083] Among them, √ means: good, no oil-water separation, no oil condensation; ○ means: good, slight oil-water separation, slight oil leakage; × means: poor, oil-water separation occurs, and oil condensation occurs.

[0084] No oil condensation or slight oil exudation was observed in Examples 1-5 of the present invention and Comparative Examples 1-2, indicating that the tea enzyme hand cream prepared by the present invention has good stability.

[0085] At the same time, condensation of the oil was observed in Comparative Examples 3 and 4, indicating that when the amounts of ceteareth-25, xylitol, dimethicone and cetyl alcohol were not within the scope claimed for protection of the present invention, the stability of the prepared tea enzyme hand cream was poor.

[0086] 2. Moisturizing evaluation

[0087] 5.00 g of the tea enzyme hand cream prepared in Examples 1-5 and Comparative Examples 1-2 and a commercially available moisturizing hand cream were respectively weighed and applied on the bottom of a culture dish affixed with breathable tape. The culture dish was then placed in an environment with a temperature of 25°C and a humidity of 50% for 24 hours. The mass of the hand cream was measured and the moisturizing rate of the hand cream was calculated.

[0088] The calculation formula is: Moisturizing rate %=m*100% / 5, where m is the mass of the hand cream after 24 hours.

[0089] Table 12 Moisturizing properties of tea enzyme hand cream

[0090]

[0091] As shown in Table 12, the moisturizing rates of the tea enzyme hand creams of Examples 1-5 of the present invention are all greater than 80%, indicating that the tea enzyme hand creams prepared by the present invention have higher moisturizing properties than commercially available products. However, the moisturizing rates of the tea enzyme hand creams of Comparative Examples 1 and 2 are lower than those of commercially available products, indicating that when the mass ratio of tea extract, avocado oil, myristyl myristate, beeswax, and isopropyl myristate is not within the range claimed by the present invention, the moisturizing effect of the prepared tea enzyme hand creams is poor.

[0092] 3. Comprehensive Evaluation

[0093] 20 users were selected to rate the greasy feel, smoothness, and moisturizing properties of their hand skin after using the tea enzyme hand creams prepared in Examples 1-5 and Comparative Examples 1-4, and commercially available moisturizing hand creams. The evaluation criteria are shown in Table 13, and the results are shown in Table 14.

[0094] Table 13 Sensory evaluation criteria for hand cream

[0095]

[0096] Table 14 User questionnaire rating table for hand cream

[0097]

[0098] The above further describes the present invention in conjunction with specific embodiments. However, these embodiments are merely exemplary and do not constitute any limitation on the scope of the present invention. It should be understood by those skilled in the art that the details and forms of the technical solutions of the present invention may be modified or replaced without departing from the spirit and scope of the present invention, and such modifications and replacements shall fall within the scope of protection of the present invention.

Claims

1. A moisturizing tea enzyme hand cream, characterized in that: Calculated by weight percentage, it includes 1%-4% tea extract, 0.05%-0.3% dipotassium glycyrrhizate, 0.5%-2% polydimethylsiloxane, 0.5%-5% petrolatum, 0.1%-0.15% phytosteryl oleate, 1%-3% glyceryl stearate, 0.05%-0.3% avocado oil %, Myristyl Myristate 0.05%-0.3%, Beeswax 0.05%-0.3%, Mineral Oil 1%-5%, Sorbitol 1%-5%, Glycerin 0.5%-3%, Ceteareth-25 0.5%-2.5%, Xylitol 0.5%-2%, Panthenol 0.05%-0.15%, Cetyl Alcohol 2%-4.2%, Isopropyl Myristate 1.5%-4.0%, Methylparaben 0.1%-0.2%, Propylparaben 0.05%-0.15%, Bis(hydroxymethyl)imidazolidinyl Urea 0.2%-0.4% and the remainder solvent.

2. The moisturizing tea enzyme hand cream according to claim 1, characterized in that: Calculated by weight percentage, it includes 3% tea extract, 0.1% dipotassium glycyrrhizate, 1% polydimethylsiloxane, 2% petrolatum, 0.15% phytosteryl oleate, 2% glyceryl stearate, 0.2% shea butter, 0.2% myristyl myristate, 0.15% beeswax, 2% mineral oil, 3% sorbitol, 2% glycerin, 1.5% ceteareth-25, 1% xylitol, 0.1% panthenol, 3% cetyl alcohol, 3% isopropyl myristate, 0.15% methylparaben, 0.1% propylparaben, 0.3% bis(hydroxymethyl)imidazolidinyl urea and the balance water.

3. The preparation method of the moisturizing tea enzyme hand cream according to any one of claims 1-2, characterized in that: The method comprises the following steps: mixing the raw materials in a prescribed amount, heating, stirring, homogenizing, and cooling to obtain the product.

4. The preparation method according to claim 3, characterized in that The heating is performed to 70-75° C., the homogenization speed is 2000-3500 rpm, and the homogenization time is 3-8 minutes.

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