A spot-lightening facial mask with whitening effect and preparation method thereof

Abstract

The present invention discloses a whitening facial mask and a preparation method thereof, and relates to the technical field of cosmetics. The whitening facial mask prepared by the present invention comprises a cleaning film cloth and a mask base liquid; wherein the cleaning film cloth is prepared by mixing activated clay, sodium alginate and dextran, and the activated clay is introduced into the cleaning film cloth to absorb grease, blackheads and dirt in the pores. When used, the water in the gel network of the activated clay mud is absorbed by the skin and then shrinks, driving the facial skin to be lifted by force, thereby achieving a lifting and firming effect; the mask base liquid comprises sodium hyaluronate, vitamin C, rice fermentation product filtrate, verbena extract, honey, pure water and black tea extract; the whitening facial mask prepared by the present invention has good antibacterial properties, lifting and firming effects, whitening properties and cleaning properties.

Description

Technical Field

[0001] The invention relates to the technical field of cosmetics, in particular to a spot-lightening facial mask with whitening effect and a preparation method thereof. Background Art

[0002] Facial mask is an external film agent that nourishes and protects the facial skin. It is easy to use and is often used as a cosmetic for facial beauty. By blocking the contact between the skin and the air, the facial mask inhibits the secretion of sebum and the evaporation of sweat, which causes the skin temperature to rise. When the skin temperature rises, it will promote blood circulation and allow the effective ingredients in the mask to penetrate into the epidermis. Accelerated blood circulation will make the skin rosy and shiny, and after the skin absorbs more moisture, nutritional essence and various effective ingredients, it can effectively improve the problem of skin dehydration and dullness.

[0003] With the development of social economy, the pressure of life is increasing day by day. Modern urban people have entered a fast-paced life with irregular diet and work and rest. In addition, the current situation of air pollution, urban haze, ultraviolet radiation, and long-term exposure to radiation from electronic screens such as mobile phones and computers has caused modern women to easily suffer from dull skin, darkening, spots, blackheads, etc. Therefore, consumers have more and more demands for functional masks. They hope that masks can not only have whitening and spot removal effects, but also can lift, tighten, and clean blackheads. Summary of the invention

[0004] The purpose of the present invention is to provide a freckle mask with whitening effect and a preparation method thereof, so as to solve the problems existing in the prior art.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0006] A freckle mask with whitening effect comprises a cleansing mask cloth and a mask base liquid, wherein the mask base liquid comprises, by weight: 10 to 20 parts of sodium hyaluronate, 20 to 72 parts of vitamin C, 1 to 3 parts of rice fermentation product filtrate, 0.8 to 3.6 parts of verbena extract, 0.2 to 1.2 parts of honey, 80 to 100 parts of pure water, and 0.6 to 2.4 parts of black tea extract.

[0007] Furthermore, the cleaning membrane cloth comprises 6 to 16 parts of activated clay, 10 to 20 parts of sodium alginate, and 20 to 80 parts of dextran by weight.

[0008] Furthermore, a method for preparing a freckle mask with whitening effect comprises the following preparation steps:

[0009] (1) Preparation of facial mask base solution;

[0010] (2) Preparation of cleaning membrane cloth;

[0011] (3) Preparation of a freckle mask with whitening effect.

[0012] Further, the method comprises the following preparation steps:

[0013] (1) Preparation of facial mask base liquid: Sodium hyaluronate, vitamin C, and pure water are mixed in a mass ratio of 1:2:80 to 1:3.6:100, stirred at 400 to 600 r / min for 10 to 20 minutes, then cooled to 5 to 15°C, and rice fermentation product filtrate, verbena extract solution, honey, and black tea extract solution are added in a mass ratio of 1:0.8:0.2:0.6 to 1:1.2:0.4:0.8, wherein the mass of the rice fermentation product filtrate is 0.1 to 0.3 times that of sodium hyaluronate, and stirred for 10 to 30 minutes to prepare a facial mask base liquid;

[0014] (2) Preparation of cleaning membrane cloth: Sodium alginate, dextran and deionized water are mixed in a mass ratio of 1:2:10 to 1:4:20, stirred at 400 to 600 r / min for 10 to 20 min, concentrated sulfuric acid of 0.6 to 0.8 times the mass of sodium alginate is added at 40 to 60 drops / min, the temperature is raised to 60 to 80°C, and stirring is continued for 3 to 5 hours, then activated white clay of 0.6 to 0.8 times the mass of sodium alginate is added, ultrasonic oscillation is performed at 30 to 40 kHz for 25 to 35 minutes, and after natural cooling to room temperature, it is poured into a mold, vacuum dried at 10 to 20 Pa and -4 to 0°C for 5 to 6 hours, and then washed with ethanol and deionized water for 2 to 4 times in turn, vacuum dried at the same pressure and temperature for 13 to 15 hours, cooled to -55 to -45°C, and vacuum dried for 47 to 49 hours to prepare a cleaning membrane cloth with a thickness of 0.3 to 0.5 mm;

[0015] (3) Preparation of a whitening and freckle mask: Immerse a clean film cloth in a mask base liquid of 60 to 80 times its weight at 0 to 10° C. for 40 to 60 minutes to prepare a whitening and freckle mask.

[0016] Furthermore, the preparation method of the verbena extract solution in step (1) is as follows: at 45-55° C., adjusting the pH value of deionized water to 7.0-8.0 with a sodium carbonate aqueous solution having a mass fraction of 3%-6%, stirring at 200-400 r / min for 5-15 min to prepare weakly alkaline deionized water; then, mixing the verbena extract and weakly alkaline deionized water in a mass ratio of 1:0.2-1:0.4, stirring at 600-800 r / min for 1.5-2.5 h, cooling to 5-15° C. at 3-4° C. / min, filtering, and preparing the verbena extract solution.

[0017] Furthermore, the preparation method of the black tea extract solution in step (1) is as follows: at 45-55°C, adjust the pH value of deionized water to 7.0-8.0 with a sodium carbonate aqueous solution with a mass fraction of 3%-6%, and stir at 200-400r / min for 5-15min to prepare weakly alkaline deionized water; then, mix the black tea extract and weakly alkaline deionized water in a mass ratio of 1:0.1-1:0.3, stir at 600-800r / min for 1.5-2.5h, cool to 4-24°C at 3-4°C / min, and filter to obtain a black tea extract solution.

[0018] Furthermore, the honey in step (1) is Yunnan fragrant honey.

[0019] Furthermore, the particle size of the activated clay in step (2) is 200 mesh.

[0020] Compared with the prior art, the beneficial effects achieved by the present invention are:

[0021] The freckle mask with whitening effect prepared by the present invention comprises a cleansing mask cloth and a mask base liquid; wherein the cleansing mask cloth is prepared by mixed spinning and spunlace of activated white clay, sodium alginate and dextran; the mask base liquid comprises sodium hyaluronate, vitamin C, rice fermentation product filtrate, verbena extract, honey, water and black tea extract.

[0022] First of all, sodium alginate and dextran have strong antibacterial properties. Sodium alginate and dextran are introduced into the cleaning membrane cloth. Sodium alginate and dextran react and cross-link with each other to form a sodium alginate-dextran hydrogel network, which enhances the antibacterial properties of the cleaning membrane cloth. The activated white clay absorbs water and then bonds to form activated white clay mud. The activated white clay mud contains a large number of micropores, which can absorb oil and dirt in the pores. When used, the water in the gel network of the activated white clay mud is absorbed by the skin and then contracts, which drives the facial skin to be lifted, thereby achieving the effect of cleansing and lifting and firming.

[0023] Secondly, vitamin C, verbena extract, honey and black tea extract in the mask base liquid can be used as natural preservatives, which are mild and non-irritating to the skin, have a low sensitization rate and have a highly effective antibacterial effect; and verbena extract contains a large amount of active substances such as verbenone, which can dredge and clean shrink pores and promote the metabolism of the stratum corneum. It is supplemented with black tea extract containing tea polyphenols, vitamin C and rice fermentation product filtrate to inhibit the catalytic effect of tyrosinase from the source, reduce the production of melanin, and at the same time remove free radicals from the antioxidant pathway to prevent the conversion of tyrosine to melanin, promote the degradation of melanin in the stratum corneum, even out skin tone, lubricate the skin and brighten the skin tone; honey is then introduced, which It contains a large amount of vitamins, amino acids and a variety of active substances, which can regulate endocrine, inhibit excessive fat secretion from sebaceous glands, improve fatty acid metabolism and blood circulation, enhance capillary function, and promote blood to transport nutrients to the skin layer. In addition, honey contains glucose peroxidase, which interacts with glucan in the cleaning mask cloth to produce hydrogen peroxide. A certain concentration of hydrogen peroxide has bactericidal and antibacterial effects, and can effectively inhibit and kill bacteria in hair follicles. Finally, sodium hyaluronate is used to replenish and lock in moisture for the skin, allowing the facial skin to return to a moist, elastic and plump state, maintain normal metabolism, and allow the active ingredients to enter the skin to maximize the brightening and whitening effects. DETAILED DESCRIPTION

[0024] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. 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 work are within the scope of protection of the present invention.

[0025] In order to more clearly illustrate the method provided by the present invention, the following examples are used to describe in detail the various index testing methods of the freckle mask with whitening effect prepared in the following examples as follows:

[0026] Antibacterial property: The same mass of the freckle mask with whitening effect prepared in the embodiment and the comparative example was taken, and the antibacterial rate was tested according to the GB / T20944.3 standard method.

[0027] Lifting and firming effect: Take the same mass of the whitening mask prepared in the embodiment and the comparative example, apply it on the surface of pig skin with 10 wrinkles of the same area for 10 consecutive days, and count the number of wrinkles on the surface of the pig skin.

[0028] Cleansing and whitening properties: Take pigs of the same mass aged 13 to 14 weeks, shave the hair on the back to expose an area of ​​about 2cm×3cm of skin, test the amount of melanin and blackheads in the area, use the mask continuously for 28 days, and test the amount of melanin and blackheads in the area after applying the mask. Blackhead removal rate = (number of blackheads before applying the mask - number of blackheads after applying the mask) * 100% / number of blackheads before applying the mask.

[0029] Example 1

[0030] (1) Preparation of facial mask base liquid: At 45°C, adjust the pH value of deionized water to 7.0 with a 3% sodium carbonate aqueous solution, stir at 200 r / min for 5 min to prepare weak alkaline deionized water; then, mix verbena extract and weak alkaline deionized water in a mass ratio of 1:0.2, stir at 600 r / min for 1.5 h, cool to 5°C at 3°C / min, and filter to prepare verbena extract solution; at 45°C, adjust the pH value of deionized water to 7.0 with a 3% sodium carbonate aqueous solution, stir at 200 r / min for 5 min to prepare weak alkaline deionized water; then, mix black tea extract and weak alkaline deionized water in a mass ratio of 1:0.2, stir at 600 r / min for 1.5 h, cool to 5°C at 3°C / min, and filter to prepare verbena extract solution; The obtained substance was mixed with weak alkaline deionized water in a mass ratio of 1:0.1, stirred at 600 r / min for 1.5 h, cooled to 4°C at 3°C / min, and filtered to obtain a black tea extract solution; sodium hyaluronate, vitamin C, and pure water were evenly mixed in a mass ratio of 1:2:80, stirred at 400 r / min for 10 min, then cooled to 5°C, and rice fermentation product filtrate, verbena extract solution, Yunnan fragrant honey, and black tea extract solution were added in a mass ratio of 1:0.8:0.2:0.6, wherein the mass of the rice fermentation product filtrate is 0.1 times that of sodium hyaluronate, and stirring was continued for 10 min to prepare a facial mask base liquid;

[0031] (2) Preparation of cleaning membrane cloth: Sodium alginate, dextran and deionized water were mixed in a mass ratio of 1:2:10, stirred at 400 r / min for 10 min, concentrated sulfuric acid 0.6 times the mass of sodium alginate was added at 40 drops / min, the temperature was raised to 60°C, and stirring was continued for 3 h. Subsequently, 200-mesh activated white clay 0.6 times the mass of sodium alginate was added, ultrasonically oscillated at 30 kHz for 25 min, naturally cooled to room temperature, poured into a mold, vacuum dried at 10 Pa and -4°C for 5 h, then washed twice with ethanol and deionized water in turn, vacuum dried at the same pressure and temperature for 13 h, cooled to -55°C, and vacuum dried for 47 h to prepare a 0.3 mm thick cleaning membrane cloth;

[0032] (3) Preparation of a whitening and freckle mask: The cleansing mask cloth was immersed in a mask base liquid of 60 times its weight at 10° C. for 40 min to prepare a whitening and freckle mask.

[0033] Example 2

[0034] (1) Preparation of facial mask base liquid: At 50°C, adjust the pH value of deionized water to 7.5 with a sodium carbonate aqueous solution having a mass fraction of 4.5%, stir at 300 r / min for 10 min to prepare weak alkaline deionized water; then, mix verbena extract and weak alkaline deionized water in a mass ratio of 1:0.3, stir at 700 r / min for 2 h, cool to 10°C at 3.5°C / min, filter, and prepare verbena extract solution; at 50°C, adjust the pH value of deionized water to 7.5 with a sodium carbonate aqueous solution having a mass fraction of 4.5%, stir at 300 r / min for 10 min to prepare weak alkaline deionized water; then The black tea extract and weak alkaline deionized water were mixed in a mass ratio of 1:0.2, stirred at 700 r / min for 2 hours, cooled to 14°C at 3.5°C / min, and filtered to obtain a black tea extract solution; sodium hyaluronate, vitamin C, and pure water were evenly mixed in a mass ratio of 1:2.7:90, stirred at 500 r / min for 15 minutes, then cooled to 10°C, and rice fermentation product filtrate, verbena extract solution, Yunnan fragrant honey, and black tea extract solution were added in a mass ratio of 1:1:0.3:0.7, wherein the mass of the rice fermentation product filtrate is 0.2 times that of sodium hyaluronate, and stirring was continued for 20 minutes to prepare a facial mask base liquid;

[0035] (2) Preparation of cleaning membrane cloth: Sodium alginate, dextran and deionized water were mixed in a mass ratio of 1:3:15, stirred at 500 r / min for 15 min, concentrated sulfuric acid 0.7 times the mass of sodium alginate was added at 50 drops / min, the temperature was raised to 70°C, and stirring was continued for 4 h. Subsequently, activated white clay 200 mesh 0.7 times the mass of sodium alginate was added, ultrasonically oscillated at 35 kHz for 30 min, naturally cooled to room temperature, poured into a mold, vacuum dried at 15 Pa and -2°C for 5.5 h, then washed with ethanol and deionized water three times in turn, vacuum dried at the same pressure and temperature for 14 h, cooled to -50°C, and vacuum dried for 48 h to prepare a 0.4 mm thick cleaning membrane cloth;

[0036] (3) Preparation of a whitening and freckle mask: The cleansing mask cloth was immersed in a mask base liquid of 70 times its weight at 15° C. for 50 min to prepare a whitening and freckle mask.

[0037] Example 3

[0038] (1) Preparation of facial mask base liquid: At 55°C, adjust the pH value of deionized water to 8.0 with a 6% sodium carbonate aqueous solution, stir at 400 r / min for 15 min to prepare weak alkaline deionized water; then, mix verbena extract and weak alkaline deionized water in a mass ratio of 1:0.4, stir at 800 r / min for 2.5 h, cool to 15°C at 4°C / min, filter, and prepare verbena extract solution; at 55°C, adjust the pH value of deionized water to 8.0 with a 6% sodium carbonate aqueous solution, stir at 400 r / min for 15 min to prepare weak alkaline deionized water; then, mix black tea extract and weak alkaline deionized water in a mass ratio of 1:0.4, stir at 800 r / min for 2.5 h, cool to 15°C at 4°C / min, filter, and prepare verbena extract solution; The mixture was mixed with weak alkaline deionized water in a mass ratio of 1:0.3, stirred at 800 r / min for 2.5 h, cooled to 24°C at 4°C / min, and filtered to obtain a black tea extract solution; sodium hyaluronate, vitamin C, and pure water were evenly mixed in a mass ratio of 1:3.6:100, stirred at 600 r / min for 20 min, then cooled to 15°C, and rice fermentation product filtrate, verbena extract solution, Yunnan fragrant honey, and black tea extract solution were added in a mass ratio of 1:1.2:0.4:0.8, wherein the mass of the rice fermentation product filtrate is 0.3 times that of sodium hyaluronate, and stirring was continued for 30 min to prepare a facial mask base liquid;

[0039] (2) Preparation of cleaning membrane cloth: Sodium alginate, dextran and deionized water were mixed in a mass ratio of 1:4:20, stirred at 600 r / min for 20 min, concentrated sulfuric acid 0.8 times the mass of sodium alginate was added at 60 drops / min, the temperature was raised to 80°C, and stirring was continued for 5 h. Subsequently, activated white clay 0.8 times the mass of sodium alginate was added, ultrasonically oscillated at 40 kHz for 35 min, and naturally cooled to room temperature. The mixture was poured into a mold and vacuum dried at 20 Pa and 0°C for 6 h, and then washed with ethanol and deionized water for 4 times in turn. After vacuum drying at the same pressure and temperature for 15 h, the mixture was cooled to -45°C and vacuum dried for 49 h to prepare a cleaning membrane cloth with a thickness of 0.5 mm.

[0040] (3) Preparation of a whitening and freckle mask: The cleansing mask cloth was immersed in a mask base liquid of 80 times its weight at 20° C. for 60 min to prepare a whitening and freckle mask.

[0041] Comparative Example 1

[0042] (1) Preparation of facial mask base liquid: At 50°C, adjust the pH value of deionized water to 7.5 with a sodium carbonate aqueous solution with a mass fraction of 4.5%, stir at 300 r / min for 10 min to prepare weak alkaline deionized water; then mix black tea extract and weak alkaline deionized water in a mass ratio of 1:0.2, stir at 700 r / min for 2 h, cool to 14°C at 3.5°C / min, filter, and prepare black tea extract solution; mix sodium hyaluronate, vitamin C, and pure water in a mass ratio of 1:2.7:90, stir at 500 r / min for 15 min, then cool to 10°C, add rice fermentation product filtrate, Yunnan fragrant honey, and black tea extract solution in a mass ratio of 1:0.3:0.7, wherein the mass of the rice fermentation product filtrate is 0.2 times that of sodium hyaluronate, and continue stirring for 20 min to prepare a facial mask base liquid;

[0043] (2) Preparation of cleaning membrane cloth: Sodium alginate, dextran and deionized water were mixed in a mass ratio of 1:3:15, stirred at 500 r / min for 15 min, concentrated sulfuric acid 0.7 times the mass of sodium alginate was added at 50 drops / min, the temperature was raised to 70°C, and stirring was continued for 4 h. Subsequently, activated white clay 200 mesh 0.7 times the mass of sodium alginate was added, ultrasonically oscillated at 35 kHz for 30 min, naturally cooled to room temperature, poured into a mold, vacuum dried at 15 Pa and -2°C for 5.5 h, then washed with ethanol and deionized water three times in turn, vacuum dried at the same pressure and temperature for 14 h, cooled to -50°C, and vacuum dried for 48 h to prepare a 0.4 mm thick cleaning membrane cloth;

[0044] (3) Preparation of a whitening and freckle mask: The cleansing mask cloth was immersed in a mask base liquid of 70 times its weight at 15° C. for 50 min to prepare a whitening and freckle mask.

[0045] Comparative Example 2

[0046] (1) Preparation of facial mask base liquid: At 50°C, adjust the pH value of deionized water to 7.5 with a sodium carbonate aqueous solution having a mass fraction of 4.5%, and stir at 300 r / min for 10 min to prepare weak alkaline deionized water; then, mix the verbena extract and weak alkaline deionized water in a mass ratio of 1:0.3, stir at 700 r / min for 2 h, cool to 10°C at 3.5°C / min, and filter to prepare a verbena extract solution; At 50°C, adjust the pH value of deionized water to 7.5 with a sodium carbonate aqueous solution having a mass fraction of 4.5%, and stir at 300 r / min for 10 min to prepare weak alkaline deionized water. ; Then, the black tea extract and weak alkaline deionized water were mixed in a mass ratio of 1:0.2, stirred at 700 r / min for 2 hours, cooled to 14°C at 3.5°C / min, and filtered to obtain a black tea extract solution; sodium hyaluronate, vitamin C, and pure water were evenly mixed in a mass ratio of 1:2.7:90, stirred at 500 r / min for 15 minutes, then cooled to 10°C, and rice fermentation product filtrate, verbena extract solution, and black tea extract solution were added in a mass ratio of 1:1:0.7, wherein the mass of the rice fermentation product filtrate is 0.2 times that of sodium hyaluronate, and stirring was continued for 20 minutes to prepare a facial mask base liquid;

[0047] (2) Preparation of cleaning membrane cloth: Sodium alginate, dextran and deionized water were mixed in a mass ratio of 1:3:15, stirred at 500 r / min for 15 min, concentrated sulfuric acid 0.7 times the mass of sodium alginate was added at 50 drops / min, the temperature was raised to 70°C, and stirring was continued for 4 h. Subsequently, activated white clay 200 mesh 0.7 times the mass of sodium alginate was added, ultrasonically oscillated at 35 kHz for 30 min, naturally cooled to room temperature, poured into a mold, vacuum dried at 15 Pa and -2°C for 5.5 h, then washed with ethanol and deionized water three times in turn, vacuum dried at the same pressure and temperature for 14 h, cooled to -50°C, and vacuum dried for 48 h to prepare a 0.4 mm thick cleaning membrane cloth;

[0048] (3) Preparation of a whitening and freckle mask: The cleansing mask cloth was immersed in a mask base liquid of 70 times its weight at 15° C. for 50 min to prepare a whitening and freckle mask.

[0049] Comparative Example 3

[0050] (1) Preparation of facial mask base liquid: At 50°C, adjust the pH value of deionized water to 7.5 with a sodium carbonate aqueous solution having a mass fraction of 4.5%, stir at 300 r / min for 10 min to prepare weak alkaline deionized water; then, mix verbena extract and weak alkaline deionized water in a mass ratio of 1:0.3, stir at 700 r / min for 2 h, cool to 10°C at 3.5°C / min, filter, and prepare verbena extract solution; at 50°C, adjust the pH value of deionized water to 7.5 with a sodium carbonate aqueous solution having a mass fraction of 4.5%, stir at 300 r / min for 10 min to prepare weak alkaline deionized water; then The black tea extract and weak alkaline deionized water were mixed in a mass ratio of 1:0.2, stirred at 700 r / min for 2 hours, cooled to 14°C at 3.5°C / min, and filtered to obtain a black tea extract solution; sodium hyaluronate, vitamin C, and pure water were evenly mixed in a mass ratio of 1:2.7:90, stirred at 500 r / min for 15 minutes, then cooled to 10°C, and rice fermentation product filtrate, verbena extract solution, Yunnan fragrant honey, and black tea extract solution were added in a mass ratio of 1:1:0.3:0.7, wherein the mass of the rice fermentation product filtrate is 0.2 times that of sodium hyaluronate, and stirring was continued for 20 minutes to prepare a facial mask base liquid;

[0051] (2) Preparation of cleaning membrane cloth: Sodium alginate and deionized water were mixed in a mass ratio of 1:15, stirred at 500 r / min for 15 min, concentrated sulfuric acid 0.7 times the mass of sodium alginate was added at 50 drops / min, the temperature was raised to 70°C, and stirring was continued for 4 h. Subsequently, 200-mesh activated white clay 0.7 times the mass of sodium alginate was added, ultrasonically oscillated at 35 kHz for 30 min, naturally cooled to room temperature, poured into a mold, vacuum dried at 15 Pa and -2°C for 5.5 h, and then washed with ethanol and deionized water three times in turn. After vacuum drying at the same pressure and temperature for 14 h, the temperature was lowered to -50°C, and vacuum drying was continued for 48 h to prepare a 0.4 mm thick cleaning membrane cloth;

[0052] (3) Preparation of a whitening and freckle mask: The cleansing mask cloth was immersed in a mask base liquid of 70 times its weight at 15° C. for 50 min to prepare a whitening and freckle mask.

[0053] Comparative Example 4

[0054] (1) Preparation of facial mask base liquid: At 50°C, adjust the pH value of deionized water to 7.5 with a sodium carbonate aqueous solution having a mass fraction of 4.5%, stir at 300 r / min for 10 min to prepare weak alkaline deionized water; then, mix verbena extract and weak alkaline deionized water in a mass ratio of 1:0.3, stir at 700 r / min for 2 h, cool to 10°C at 3.5°C / min, filter, and prepare verbena extract solution; at 50°C, adjust the pH value of deionized water to 7.5 with a sodium carbonate aqueous solution having a mass fraction of 4.5%, stir at 300 r / min for 10 min to prepare weak alkaline deionized water; then The black tea extract and weak alkaline deionized water were mixed in a mass ratio of 1:0.2, stirred at 700 r / min for 2 hours, cooled to 14°C at 3.5°C / min, and filtered to obtain a black tea extract solution; sodium hyaluronate, vitamin C, and pure water were evenly mixed in a mass ratio of 1:2.7:90, stirred at 500 r / min for 15 minutes, then cooled to 10°C, and rice fermentation product filtrate, verbena extract solution, Yunnan fragrant honey, and black tea extract solution were added in a mass ratio of 1:1:0.3:0.7, wherein the mass of the rice fermentation product filtrate is 0.2 times that of sodium hyaluronate, and stirring was continued for 20 minutes to prepare a facial mask base liquid;

[0055] (2) Preparation of cleaning membrane cloth: Sodium alginate, dextran and deionized water were mixed in a mass ratio of 1:3:15, stirred at 500 r / min for 15 min, concentrated sulfuric acid 0.7 times the mass of sodium alginate was added at 50 drops / min, the temperature was raised to 70°C, stirring was continued for 4 h, and after natural cooling to room temperature, the mixture was poured into a mold, vacuum dried at 15 Pa and -2°C for 5.5 h, and then washed with ethanol and deionized water for 3 times in sequence. After vacuum drying at the same pressure and temperature for 14 h, the mixture was cooled to -50°C and vacuum dried for 48 h to prepare a cleaning membrane cloth with a thickness of 0.4 mm.

[0056] (3) Preparation of a whitening and freckle mask: The cleansing mask cloth was immersed in a mask base liquid of 70 times its weight at 15° C. for 50 min to prepare a whitening and freckle mask.

[0057] Effect example

[0058] Table 1 below shows the analysis results of the antibacterial property, lifting and firming effect, whitening property and cleansing property of the freckle masks with whitening effect prepared by using Examples 1 to 3 of the present invention and Comparative Examples 1 to 5.

[0059] Table 1

[0060]

[0061] From Table 1, it can be found that the whitening and freckle masks prepared in Examples 1, 2 and 3 have good antibacterial properties, lifting and firming effects, whitening properties and cleansing properties; from the comparison of the experimental data of Examples 1, 2, 3 and Comparative Example 1, it can be found that the whitening and freckle masks prepared by using verbena extract to prepare the mask base liquid have stronger whitening and cleansing properties; from the experimental data of Examples 1, 2, 3 and Comparative Example 2, it can be found that the whitening and freckle masks prepared by using honey to prepare the mask base liquid have stronger antibacterial and whitening properties; from the experimental data of Examples 1, 2, 3 and Comparative Example 3, it can be found that the whitening and freckle masks prepared by using dextran to prepare the cleaning film cloth have stronger antibacterial properties; from the experimental data of Examples 1, 2, 3 and Comparative Example 4, it can be found that the whitening and freckle masks prepared by using activated white clay to prepare the cleaning film cloth have stronger lifting and firming effects and cleansing properties.

[0062] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations within the meaning and scope of the equivalent elements of the claims be included in the invention. Any marking in a claim should not be considered as limiting the claim to which it relates.

Claims

1. A freckle mask with whitening effect, comprising a cleansing mask cloth and a mask base liquid, characterized in that: The facial mask base liquid comprises, by weight: 10 to 20 parts of sodium hyaluronate, 20 to 72 parts of vitamin C, 1 to 3 parts of rice fermentation product filtrate, 0.8 to 3.6 parts of verbena extract, 0.2 to 1.2 parts of honey, 80 to 100 parts of pure water, and 0.6 to 2.4 parts of black tea extract; The cleaning membrane cloth comprises 6 to 16 parts of activated clay, 10 to 20 parts of sodium alginate, and 20 to 80 parts of dextran by weight.

2. A method for preparing a freckle mask with whitening effect as claimed in claim 1, characterized in that: The method comprises the following preparation steps: (1) Preparation of facial mask base liquid: Sodium hyaluronate, vitamin C and pure water are mixed in a mass ratio of 1:2:80-1:3.6:100, stirred at 400-600 r / min for 10-20 min, then cooled to 5-15°C, and rice fermentation product filtrate, verbena extract solution, honey and black tea extract solution are added in a mass ratio of 1:0.8:0.2:0.6-1:1.2:0.4:0.8, wherein the mass of rice fermentation product filtrate is 0.1-0.3 times that of sodium hyaluronate, and stirred for 10-30 min to prepare the facial mask base liquid; (2) Preparation of cleaning membrane cloth: Sodium alginate, dextran and deionized water were mixed in a mass ratio of 1:2:10~1:4:20, stirred at 400~600r / min for 10~20min, concentrated sulfuric acid with a mass of 0.6~0.8 times that of sodium alginate was added at a rate of 40~60 drops / min, the temperature was raised to 60~80℃, and stirring was continued for 3~5h. Subsequently, activated white clay with a mass of 0.6~0.8 times that of sodium alginate was added, ultrasonically oscillated at 30~40kHz for 25~35min, and naturally cooled to room temperature. The mixture was poured into a mold and vacuum dried at 10~20Pa and -4~0℃ for 5~6h, and then washed with ethanol and deionized water for 2~4 times. After vacuum drying at the same pressure and temperature for 13~15h, the temperature was lowered to -55~-45℃, and vacuum drying was continued for 47~49h to prepare a cleaning membrane cloth with a thickness of 0.3~0.5mm. (3) Preparation of a whitening and freckle mask: Immerse the cleaned mask cloth in a mask base liquid of 60 to 80 times its weight at 0 to 10°C for 40 to 60 minutes to prepare a whitening and freckle mask; The preparation method of the verbena extract solution in step (1) is as follows: at 45-55° C., adjusting the pH value of deionized water to 7.0-8.0 with a sodium carbonate aqueous solution having a mass fraction of 3%-6%, stirring at 200-400 r / min for 5-15 min to prepare weakly alkaline deionized water; then, mixing the verbena extract and weakly alkaline deionized water in a mass ratio of 1:0.2-1:0.4, stirring at 600-800 r / min for 1.5-2.5 h, cooling at 3-4° C. / min to 5-15° C., filtering, and preparing the verbena extract solution; The preparation method of the black tea extract solution in step (1) is as follows: at 45-55°C, adjust the pH value of deionized water to 7.0-8.0 with a sodium carbonate aqueous solution having a mass fraction of 3%-6%, and stir at 200-400 r / min for 5-15 min to prepare weakly alkaline deionized water; then, mix the black tea extract and weakly alkaline deionized water in a mass ratio of 1:0.1-1:0.3, stir at 600-800 r / min for 1.5-2.5 h, cool to 4-24°C at 3-4°C / min, and filter to obtain a black tea extract solution; Wherein, the honey in step (1) is Yunnan fragrant honey, and the particle size of the activated white clay in step (2) is 200 mesh.

Images