Facial mask as well as preparation method and use method thereof

Abstract

The invention provides a facial mask as well as a preparation method and a use method thereof, and belongs to the technical field of cosmetics, facial mask liquid is prepared from the following components in parts by mass: 0.1 to 2 parts of a thickening agent, 1 to 10 parts of a first humectant, 0.01 to 1 part of gel particles, 1 to 10 parts of water-in-oil active liquid drops, 0.1 to 2 parts of a first preservative, 0.1 to 2 parts of a pH regulator, 0.1 to 1 part of a soothing active matter, 0.01 to 0.2 part of EDTA (Ethylene Diamine Tetraacetic Acid) disodium and 70 to 90 parts of water; the water-in-oil active liquid drops are prepared from the following raw materials in parts by mass: 10 to 50 parts of emollient, 1 to 5 parts of water-in-oil emulsifier, 1 to 10 parts of second humectant, 0.1 to 5 parts of plant extract, 0.1 to 1 part of second preservative and 40 to 70 parts of water. The moisturizing mask has good moisturizing performance and mild exfoliating and brightening effects, meanwhile, active substances are wrapped with a water-in-oil technology, the stability of the active substances is improved, and meanwhile the use effect of the mask is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of cosmetics, and in particular, to a moisturizing and brightening gel facial mask, a preparation method thereof, and a using method thereof. Background Art

[0002] The current types of facial mask products include facial masks, gel-type sleeping facial masks, cream-type smear facial masks, clay masks, etc. Each of these facial masks has its own advantages and disadvantages. Facial masks rely on the mask liquid and the mask cloth, and can provide better osmotic pressure to the face during use, having a good moisturizing effect. However, due to the limitation of the wettability of the mask cloth, the mask liquid generally has a small consistency and cannot provide a good softening feeling. Gel-type sleeping facial masks are usually in a transparent or slightly transparent jelly state, which is convenient for use and storage. However, due to their morphological limitations, the degree of change in the moisturizing and nourishing state provided to the skin is relatively limited. Cream-type facial masks are applied to the face, and they have a good effect of moisturizing the skin. However, due to the thick consistency of their paste, it is difficult to wash off.

[0003] Facial mask products have many functions, and moisturizing, soothing, and brightening the skin color are the focus of demands. Among them, for the function of brightening the skin color, in the development of daily skin care products, it is usually designed from multiple angles by adding efficacy substances with whitening effects and removing waste cutin. Currently, for the need of removing cutin, in products, organic acids (salicylic acid, lactic acid, cream, fruit acid) are usually added, etc. However, this method causes greater harm to the skin and cannot be used for a long time. Designing a facial mask product that can gently remove cutin and is friendly to the skin has become a practical need. In addition, adding natural plant extracts to facial masks has been a hot topic in facial mask development in recent years. However, plant extracts have defects such as easy discoloration and precipitation. How to achieve a stable state of plant extracts in the formula has also been a hot research topic in recent years. Summary of the Invention

[0004] One of the purposes of the present invention is to provide a facial mask.

[0005] Another purpose of the present invention is to provide a preparation method of the facial mask.

[0006] The third purpose of the present invention is to provide a using method of the facial mask.

[0007] In order to achieve the above purposes of the present invention, the following technical solutions are specifically adopted:

[0008] In the first aspect, the present invention provides a facial mask, including a mask cloth and a mask liquid;

[0009] The mask liquid includes the following components in parts by mass:

[0010] 0.1 - 2 parts of thickener, 1 - 10 parts of the first humectant, 0.01 - 1 part of gel particles, 1 - 10 parts of water-in-oil active droplets, 0.1 - 2 parts of the first preservative, 0.1 - 2 parts of pH regulator, 0.1 - 1 part of soothing active substance, 0.01 - 0.2 part of disodium EDTA, and 70 - 90 parts of water;

[0011] The water-in-oil active droplets are made from the following raw materials in parts by mass: 10 - 50 parts of emollient, 1 - 5 parts of water-in-oil emulsifier, 1 - 10 parts of the second humectant, 0.1 - 5 parts of plant extract, 0.1 - 1 part of the second preservative, and 40 - 70 parts of water;

[0012] The viscosity range of the mask liquid is 10000 - 25000 mPa·s.

[0013] Thickener:

[0014] The thickener can be at least one selected from carbomer, acrylate / C10 - 30 alkanol acrylate cross-linked polymer, polyacrylate cross-linked polymer - 6, xanthan gum, gellan gum, tamarind extract, preferably at least three of carbomer, acrylate / C10 - 30 alkanol acrylate cross-linked polymer, polyacrylate cross-linked polymer - 6, and xanthan gum.

[0015] High molecular polymers such as carbomer and acrylate / C10 - 30 alkanol acrylate cross-linked polymer have a softening and moisturizing effect.

[0016] The dosage of the thickener is, for example, 0.1, 0.2, 0.3, 0.5, 0.6, 0.8, 1, 1.2, 1.5, 1.6, 1.8, 2 parts, but is not limited thereto.

[0017] In some embodiments, the thickener includes the following components in parts by mass: acrylate / C10 - 30 alkanol acrylate cross-linked polymer, carbomer, and xanthan gum. The sum of the mass parts of acrylate / C10 - 30 alkanol acrylate cross-linked polymer and carbomer is 0.15 - 0.3 parts, and the mass part of xanthan gum is 0.1 - 0.3 parts.

[0018] In some embodiments, the thickener includes the following components in parts by mass: acrylate / C10 - 30 alkanol acrylate cross-linked polymer or carbomer 0.1 - 0.2 parts, polyacrylate cross-linked polymer - 6 0.2 - 0.3 parts, and xanthan gum 0.1 - 0.3 parts.

[0019] Through the reasonable combination of the types and contents of the thickener, the viscosity of the mask liquid is within an appropriate range, obtaining good wetting effect and massage exfoliating effect.

[0020] The first humectant:

[0021] The first humectant may be at least one selected from glycerin, butylene glycol, betaine, trehalose, dipropylene glycol, propylene glycol, sodium hyaluronate, 1,2-pentanediol, and 1,2-hexanediol.

[0022] Sodium hyaluronate is itself a component of human skin. It is an acidic mucopolysaccharide most widely distributed in the human body and exists in the matrix of connective tissues, having good moisturizing effects.

[0023] The dosage of the first humectant is, for example, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10 parts, but is not limited thereto.

[0024] Gel particles:

[0025] The gel particles may be at least one selected from sodium polyacrylate and sodium polyacrylate grafted starch.

[0026] The dosage of the gel particles is, for example, 0.01, 0.05, 0.1, 0.2, 0.3, 0.4, 0.5, 0.6, 0.7, 0.8, 0.9, 1 part, but is not limited thereto.

[0027] Water-in-oil active droplets:

[0028] The raw materials for preparing the water-in-oil active droplets include an emollient, a water-in-oil emulsifier, water, a second humectant, a plant extract, and a second preservative.

[0029] The emollient may be at least one selected from hydrogenated polydecene, squalane, lecithin, phytosterol / octyldodecyl lauroyl glutamate, polydimethylsiloxane, and phenyl silicone oil.

[0030] Lecithin is an indispensable substance in the human body and has the ability to revitalize the skin.

[0031] The dosage of the emollient is, for example, 10, 15, 20, 25, 30, 35, 40, 45, 50 parts, but is not limited thereto.

[0032] The water-in-oil emulsifier may be at least one selected from cetyl PEG / PPG-10 / 1 polydimethylsiloxane, sorbitan oleate, polyglycerol-4 oleate, polyglycerol-3 polyricinoleate, and PEG-10 polydimethylsiloxane.

[0033] The dosage of the water-in-oil emulsifier is, for example, 1, 2, 3, 4, 5 parts, but is not limited thereto.

[0034] The second humectant may be at least one selected from glycerin, butylene glycol, dipropylene glycol, betaine, and trehalose.

[0035] The dosage of the second humectant is, for example, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10 parts, but is not limited thereto.

[0036] The plant extract may be at least one selected from persimmon leaf extract, salvia miltiorrhiza extract, ginseng root extract, and safflower flower extract.

[0037] The persimmon leaf extract contains various chemical components such as flavonoids, alkaloids, volatile oils, tannins, phenols, coumarins, triterpenoids, organic acids, phytosterols, and values. It can promote the synthesis of hyaluronic acid, and at the same time has antioxidant effects, can activate the skin and resist aging, and provide multiple effects such as moisturizing, whitening, and anti-aging for the skin.

[0038] The main components of the salvia miltiorrhiza extract are phenanthraquinone derivatives, including tanshinone I, tanshinone II-A, tanshinone II-B, cryptotanshinone, danshensu, protocatechualdehyde, protocatechuic acid, etc. It can promote the proliferation of collagen, enhance the metabolism of the dermis, and has good effects of activating the skin, soothing, and moisturizing.

[0039] The ginseng root extract mainly contains effective components such as ginsenosides, ginseng polysaccharides, ginseng polypeptides, sterols and their glycosides, flavonoids, volatile oils, amino acids, fatty acids, vitamins, and trace elements. It has multiple effects such as promoting the proliferation of epidermal keratinocytes, promoting the synthesis of hyaluronic acid, and promoting the contraction of collagen gel, and has multiple effects such as whitening, soothing, moisturizing, and sun protection in skin care products.

[0040] The safflower flower extract mainly contains flavonoid compounds and chalcones. The safflower extract has the effects of promoting blood circulation, anti-inflammatory, and antioxidant, can improve skin blood circulation, promote skin metabolism, scavenge free radicals, inhibit melanin precipitation, accelerate the elimination of spots and decolorization, and can exert the effects of whitening and anti-aging.

[0041] The dosage of the plant extract is, for example, 0.1, 0.2, 0.5, 0.6, 0.8, 1, 1.5, 2, 2.5, 3, 3.5, 4, 4.5, 5 parts, but is not limited thereto.

[0042] The second preservative may be at least one selected from hydroxyacetophenone and 1,2-hexanediol.

[0043] The dosage of the second preservative is, for example, 0.1, 0.2, 0.3, 0.4, 0.5, 0.6, 0.7, 0.8, 0.9, 1 part, but is not limited thereto.

[0044] The dosage of water is, for example, 40, 45, 50, 55, 60, 65, 70 parts, but is not limited thereto.

[0045] In some embodiments, the water-in-oil active droplets are prepared by a method including the following steps:

[0046] (1) Dissolve 0.1 - 5 parts of the plant extract in 20 - 30 parts of water, and filter for later use;

[0047] (2) Add 1 - 10 parts of the second humectant, 0.1 - 1 part of the second preservative, and the filtrate obtained in step (1) to 20 - 40 parts of water, heat to 70 - 80 °C, stir at 100 - 400 rpm for 20 - 40 min until all solids are dissolved;

[0048] (3) Mix 10 - 50 parts of emollient and 1 - 5 parts of water - in - oil emulsifier, stir at 100 - 300 rpm for 20 - 40 min;

[0049] (4) Slowly add the solution obtained in step (2) to step (3), control the addition rate to be 3 - 6 ml / min, the temperature to be 25 - 80 °C, stir at 100 - 400 rpm for 30 - 60 min, and homogenize at 3000 - 10000 rpm for 5 - 10 min to obtain water - in - oil active droplets.

[0050] The first preservative:

[0051] The first preservative can be at least one selected from hydroxyacetophenone and 1,2 - hexanediol, preferably hydroxyacetophenone.

[0052] Hydroxyacetophenone is a new type of antiseptic synergist, different from traditional preservatives, mild, effective and non - irritating, and also has the effect of soothing and controlling oil.

[0053] The dosage of the preservative is, for example, 0.1, 0.2, 0.3, 0.4, 0.5, 0.6, 0.8, 1, 1.2, 1.4, 1.5, 1.6, 1.8, 2 parts, but not limited thereto.

[0054] pH regulator:

[0055] The pH regulator can be at least one selected from arginine, aminomethylpropanol, and triethanolamine.

[0056] The dosage of the pH regulator is, for example, 0.1, 0.2, 0.3, 0.4, 0.5, 0.6, 0.8, 1, 1.2, 1.4, 1.5, 1.6, 1.8, 2 parts, but not limited thereto.

[0057] It should be noted that the dosage of the pH regulator is generally added in proportion to carbomer and acrylate / C10 - 30 alkyl acrylate cross - polymer, etc.

[0058] Soothe active substance:

[0059] The soothe active substance can be at least one selected from allantoin, dipotassium glycyrrhizinate, centella asiatica extract, ectoine, and portulaca oleracea extract.

[0060] The dosage of the soothing active ingredient is, for example, 0.1, 0.2, 0.3, 0.4, 0.5, 0.6, 0.7, 0.8, 0.9, 1 part, but not limited thereto.

[0061] The dosage of disodium EDTA is, for example, 0.01, 0.02, 0.03, 0.05, 0.06, 0.08, 0.1, 0.12, 0.15, 0.16, 0.18, 0.2 part, but not limited thereto.

[0062] The dosage of water is, for example, 70, 72, 75, 76, 78, 80, 82, 84, 85, 86, 88, 90 parts, but not limited thereto.

[0063] The viscosity of the facial mask liquid of the present invention is controlled at 10,000 - 25,000 mPa·s, for example, 10,000, 12,000, 15,000, 16,000, 18,000, 20,000, 22,000, 24,000 mPa·s. If the viscosity is too high, the wettability is poor; if the viscosity is too low, it is not conducive to forming a mass during later massage and kneading.

[0064] The facial mask cloth can be a tencel facial mask cloth.

[0065] In a second aspect, the present invention provides a method for preparing the above-mentioned facial mask, including the following steps:

[0066] S1. Disperse the thickening agent in water and soak for 2 - 3 h;

[0067] S2. Add the first moisturizing agent, gel particles, first preservative, and disodium EDTA to step S1, stir at 50 - 200 rpm for 20 - 60 min, while heating to 60 - 80 °C, keep warm for 10 - 30 min, and homogenize at 1000 - 5000 rpm until the liquid is uniform;

[0068] S3. Cool down to 50 - 60 °C, add the water-in-oil active liquid droplets, and stir at 200 - 400 rpm for 10 - 30 min;

[0069] S4. Cool down to 45 - 55 °C, add the pH regulator, and stir at 50 - 200 rpm for 5 - 30 min;

[0070] S5. Cool down to below 45 °C, add the soothing active ingredient to obtain the facial mask liquid;

[0071] S6. Fill the facial mask liquid into a facial mask bag containing the facial mask cloth, soak the facial mask cloth for 4 - 24 h to obtain the facial mask (moisturizing and brightening gel facial mask).

[0072] In some embodiments, the water-in-oil active liquid droplets are prepared by a method including the following steps:

[0073] (1) Dissolve 0.1 - 5 parts of plant extract in 20 - 30 parts of water, and filter for later use;

[0074] (2) Add 1 - 10 parts of the second humectant, 0.1 - 1 part of the second preservative, and the filtrate obtained in step (1) to 20 - 40 parts of water, heat to 70 - 80 °C, stir at 100 - 400 rpm for 20 - 40 min until all solids are dissolved;

[0075] (3) Mix 10 - 50 parts of emollient and 1 - 5 parts of water - in - oil emulsifier, and stir at 100 - 300 rpm for 20 - 40 min;

[0076] (4) Slowly add the solution obtained in step (2) to step (3), control the addition rate at 3 - 6 ml / min, the temperature at 25 - 80 °C, stir at 100 - 400 rpm for 30 - 60 min, and homogenize at 3000 - 10000 rpm for 5 - 10 min to obtain water - in - oil active droplets.

[0077] In some embodiments, each facial mask contains 1 piece of mask cloth, and the added amount of mask liquid is 30 - 45 g.

[0078] In a third aspect, the present invention provides a method for using a facial mask, including the following steps:

[0079] (1) Press the facial mask in the hand to evenly distribute the mask liquid on the mask cloth,

[0080] (2) Open the facial mask, take out the mask cloth, and apply the mask cloth on the face,

[0081] (3) Remove the mask cloth after 15 - 20 min,

[0082] (4) Massage the remaining mask liquid on the face until the mask liquid is absorbed and continue to massage for 1 - 5 min until a gel mass appears and the gel mass no longer increases,

[0083] (5) Wipe off or wash away the gel mass massaged out.

[0084] Beneficial effects

[0085] (1) In the present invention, through the synergistic thickening of the thickener polymer and substances such as plant polysaccharides, its viscosity is precisely controlled, so that the mask liquid can better infiltrate the mask cloth and at the same time has the effect of forming a mass during subsequent massage.

[0086] (2) In this application, polymer particles (gel particles) are added. The innovative usage method, through sufficient massage, while helping the effective absorption of active substances, can induce the aggregation of the thickener in the mask liquid, and remove the well - softened old cutin in the skin by physical adsorption. The removal method is gentler, making the skin more translucent, and it can be used multiple times without harming the skin.

[0087] (3) In this application, the plant extract is first treated with water-in-oil treatment to form a water-in-oil hydrogel. Dispersed in the mask base material, it can effectively prevent discoloration problems and maintain the activity of the plant extract.

[0088] (4) The mask of the present invention contains water-in-oil plants. The outer layer of emollient oil can better moisturize the skin. While protecting the inner layer of plant extract, it can also better promote the absorption of active substances during use, achieving the effects of moisturizing, moisturizing and brightening the skin.

[0089] (5) The present invention has good moisturizing performance. The outer phase of the mask adopts a gel-like liquid form, exogenously supplementing hyaluronic acid and polyol for moisturizing, providing a relatively moist skin feel. The mask matrix and the usage method are innovated synergistically, having a good mild exfoliating and brightening effect. At the same time, the active substances are encapsulated by the water-in-oil technology, improving the stability of the active substances and enhancing the usage effect of the mask.

[0090] The present invention has been described in detail above. However, the above embodiments are essentially illustrative only and are not intended to limit the present invention. In addition, this article is not restricted by any theory in the foregoing prior art, invention content or the following examples. BRIEF DESCRIPTION OF THE DRAWINGS

[0091] Figure 1 It is a test result graph for moisturizing effect;

[0092] Figure 2 It is a result graph for the change in the number of pigmentation;

[0093] Figure 3 It is a result graph for the change in the pigmentation area. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0094] The following further illustrates the present invention in conjunction with embodiments. It should be noted that the following embodiments are provided for illustrative purposes only and do not constitute a limitation on the scope of protection required by the present invention.

[0095] Unless otherwise specified, the raw materials, reagents, methods, etc. used in the embodiments are all conventional raw materials, reagents, methods in the art.

[0096] The raw materials involved in the examples and comparative examples are as follows:

[0097] Main source of substances:

[0098] Persimmon leaf extract: Yunzhi Qingshui (Tianjin) Technology Co., Ltd.;

[0099] Salvia miltiorrhiza extract: Yunzhi Qingshui (Tianjin) Technology Co., Ltd.;

[0100] Ginseng root extract: Yunzhi Qingshui (Tianjin) Technology Co., Ltd.;

[0101] Safflower flower extract: Yunzhi Qingshui (Tianjin) Technology Co., Ltd.;

[0102] Acrylates / C10-30 alkyl acrylate crosspolymer: Lubrizol Advanced Materials, Inc.;

[0103] Carbomer: Lubrizol Advanced Materials, Inc.;

[0104] Polyacrylate crosspolymer-6: SEPPIC S.A.;

[0105] Xanthan gum: CP Kelco;

[0106] Sodium polyacrylate particles: Shanghai Pu'en Biochemical Technology Co., Ltd.;

[0107] Lecithin: Hebei Meiyesiwei Biotechnology Co., Ltd.;

[0108] Phenyl silicone oil: Dow Chemical (Shanghai) Co., Ltd.;

[0109] Hydrogenated polydecene: INEOS;

[0110] PEG-10 polydimethylsiloxane: Shin-Etsu Chemical Co., Ltd.

[0111] Example 1

[0112] Prepare water-in-oil active droplets:

[0113] (1) Dissolve 2.5 parts of persimmon leaf extract, 1.5 parts of salvia miltiorrhiza extract, 0.5 part of ginseng root extract, and 0.5 part of safflower flower extract in 25 parts of water, and filter for later use;

[0114] (2) Add 5 parts of glycerol, 0.5 part of 1,2-hexanediol, 0.5 part of p-hydroxyacetophenone, and the filtrate from step (1) to 23 parts of water, heat to 80-90 °C, stir at 100-400 rpm for 30 min until all solids are dissolved;

[0115] (3) Mix 20 parts of phenyl silicone oil, 10 parts of lecithin, 10 parts of hydrogenated polydecene, and 2 parts of PEG-10 polydimethylsiloxane, and stir at 100-300 rpm for 20-40 min;

[0116] (4) Slowly add the solution obtained in step (2) to step (3), control the speed at 3-6 ml / min, control the temperature at 25-80 °C, stir at 100-400 rpm for 30-60 min, and homogenize at 3000-10000 rpm for 5-10 min to obtain water-in-oil active droplets.

[0117] Preparation method of moisturizing and brightening facial mask liquid:

[0118] S1. Disperse 0.1 part of acrylate / C10-30 alkyl acrylate cross-linked polymer, 0.1 part of carbomer, and 0.1 part of xanthan gum in 80 parts of water, and soak for 2-3 h;

[0119] S2. Add 4 parts of dipropylene glycol, 2 parts of glycerin, 0.1 part of sodium hyaluronate, 0.02 part of sodium polyacrylate particles, 0.5 part of 1,2-hexanediol, 0.5 part of p-hydroxyacetophenone, and 0.05 part of disodium EDTA to S1, stir at 50-200 rpm for 20-60 min, while heating to 60-80 °C, keep warm for 10-30 min, and homogenize at 1000-5000 rpm until the liquid is uniform;

[0120] S3. Cool down to 50-60 °C, add 10 parts of water-in-oil active liquid droplets, and stir at 200-400 rpm for 10-30 min;

[0121] S4. Cool down to 45-55 °C, add 0.2 part of arginine, and stir at 50-200 rpm for 5-30 min;

[0122] S5. Cool down to below 45 °C, add 0.1 part of ectoine, 0.1 part of Centella asiatica extract, and 0.05 part of dipotassium glycyrrhizinate to obtain the moisturizing and brightening gel facial mask liquid.

[0123] Preparation method of moisturizing and brightening gel facial mask:

[0124] Soak the tencel mask cloth with 35 g of the moisturizing and brightening gel facial mask liquid, and obtain the moisturizing and brightening gel facial mask after 24 hours.

[0125] Example 2

[0126] In S1 of this example, 0.15 part of acrylate / C10-30 alkyl acrylate cross-linked polymer, 0.2 part of polyacrylate cross-linked polymer-6, and 0.1 part of xanthan gum are added as thickeners, and 0.15 part of arginine is used in S4, and the rest is the same as in Example 1.

[0127] Example 3

[0128] In S1 of this example, 0.1 part of carbomer, 0.2 part of polyacrylate cross-linked polymer-6, and 0.1 part of xanthan gum are added as thickeners, and 0.1 part of arginine is used in S4, and the rest is the same as in Example 1.

[0129] Example 4

[0130] In step S1 of this example, 0.15 parts of carbomer, 0.1 part of acrylate / C10-30 alkyl acrylate cross-linked polymer, and 0.1 part of xanthan gum are added as thickeners. In step S4, 0.25 parts of arginine are used, and the rest is the same as in Example 1.

[0131] Comparative Example 1

[0132] In step S1 of this comparative example, 0.05 parts of carbomer, 0.15 parts of polyacrylate cross-linked polymer-6, and 0.1 part of xanthan gum are added as thickeners. In step S4, 0.05 parts of arginine are used, and the rest is the same as in Example 1.

[0133] Comparative Example 2

[0134] In step S1 of this comparative example, 0.05 parts of carbomer, 0.2 parts of polyacrylate cross-linked polymer-6, and 0.1 part of xanthan gum are added as thickeners. In step S4, 0.05 parts of arginine are used, and the rest is the same as in Example 1.

[0135] Comparative Example 3

[0136] In step S1 of this comparative example, 0.08 parts of acrylate / C10-30 alkyl acrylate cross-linked polymer, 0.2 parts of polyacrylate cross-linked polymer-6, and 0.1 part of xanthan gum are added as thickeners. In step S4, 0.08 parts of arginine are used, and the rest is the same as in Example 1.

[0137] Comparative Example 4

[0138] In step S1 of this comparative example, 0.2 parts of acrylate / C10-30 alkyl acrylate cross-linked polymer, 0.15 parts of carbomer, and 0.1 part of xanthan gum are added as thickeners. In step S4, 0.35 parts of arginine are used, and the rest is the same as in Example 1.

[0139] Comparative Example 5

[0140] Preparation method of facial mask liquid:

[0141] S1. Disperse 0.05 parts of acrylate / C10-30 alkyl acrylate cross-linked polymer and 0.1 part of xanthan gum in 80 parts of water and soak for 2 - 3 h;

[0142] S2. Add 4 parts of dipropylene glycol, 2 parts of glycerol, 0.1 part of sodium hyaluronate, 0.02 parts of sodium polyacrylate particles, 0.5 parts of 1,2 - hexanediol, 0.6 parts of p - hydroxyacetophenone, and 0.05 parts of disodium EDTA to S1, stir at 50 - 200 rpm for 20 - 60 min, while heating to 60 - 80 °C, keep warm for 10 - 30 min, and homogenize at 1000 - 5000 rpm until the liquid is uniform;

[0143] S3. Cool down the temperature to 45 - 55°C, add 0.05 parts of arginine, and stir at 50 - 200 rpm for 5 - 30 minutes;

[0144] S4. Cool down the temperature to below 45°C, add 0.25 parts of persimmon leaf extract, 0.15 parts of salvia miltiorrhiza extract, 0.05 parts of ginseng root extract, 0.05 parts of safflower flower extract, 0.1 part of ectoine, 0.1 part of centella asiatica extract, and 0.05 parts of dipotassium glycyrrhizinate to obtain the moisturizing facial mask liquid.

[0145] Preparation method of the facial mask:

[0146] Soak a tencel facial mask cloth with 25 g of the facial mask liquid, and obtain the moisturizing facial mask after 24 hours.

[0147] Performance test:

[0148] 1. Viscosity test: Conduct a viscosity test on the facial mask liquid. The test method is as follows: Use an NDJ-1 type rotational viscometer. Take 200 g of the prepared facial mask liquid and place it in a beaker with a diameter of not less than 70 mm and a height of not less than 130 mm. Select a suitable rotor and rotation speed, control the reading to be approximately between 20 - 80 grids. Wait for the rotor to rotate and the pointer area to stabilize, then read the value. The results are shown in Table 1.

[0149] Table 1

[0150]

[0151] 2. Infiltration condition of the facial mask cloth after 24 hours:

[0152] According to the specific addition amount of the facial mask liquid in the above-mentioned examples and comparative examples, fill the facial mask liquid into a facial mask bag containing the facial mask cloth. After standing for 24 hours, open the facial mask bag, take out the facial mask cloth, and observe the infiltration state of the facial mask cloth.

[0153] The results are shown in Table 2.

[0154] Table 2

[0155]

[0156] 3. Clumping situation after use (Comparative Example 4 does not meet the conditions (the facial mask cloth in Comparative Example 4 cannot be infiltrated), so this comparison is not carried out)

[0157] Test method: Tear open the filled facial mask, take out the facial mask cloth and apply it on the face. After about 15 - 20 minutes, remove the facial mask cloth. Massage the remaining facial mask liquid until it is completely absorbed, and then continue to massage for about 3 minutes to check the clumping situation.

[0158] The results are shown in Table 3.

[0159] Table 3

[0160]

[0161] 4. Stability Observation

[0162] The test samples are: Example 1, Example 2, Example 3, Example 4 and Comparative Example 5;

[0163] Test method: Place the samples in 30 g PET transparent sample bottles and place them in the following test environments respectively:

[0164] (1) Room temperature: Store in the dark at 25 °C as the standard comparison sample;

[0165] (2) Heat resistance: 45 ± 2 °C, test time is three months;

[0166] (3) Cold resistance: -8 ± 2 °C, test time is three months;

[0167] (4) Light exposure: Natural light irradiation at room temperature on the window sill, test time is three months;

[0168] (5) Thermal cycling: -8 ± 2 °C and 45 ± 2 °C, alternating every 24 h, a total of 7 cycles are completed;

[0169] At the end of the experiment, compare the sample states under each condition with the room temperature standard sample and count the test results.

[0170] The results are shown in Table 4.

[0171] Table 4

[0172] Experimental coding Example 1 Example 2 Example 3 Example 4 Comparative Example 5 Room temperature Normal Normal Normal Normal Normal Heat-resistant Normal Normal Normal Normal Color becomes darker Cold-resistant Normal Normal Normal Normal Normal Cycle Normal Normal Normal Normal Color becomes slightly darker Light Normal Normal Normal Normal Color becomes darker

[0173] 5. Moisturizing Effect Test after Use

[0174] This test uses a laboratory method to test the above-obtained samples. Accurately weigh 1 g of the sample and place it in a weighing bottle. Place the weighing bottle containing the sample without a lid in a desiccator containing silica gel and weigh it every 2 h. Calculate its moisturizing rate according to the ratio of the weighing number to the original sample amount. The results are as follows Figure 1 .

[0175] From Figure 1 it can be seen that Comparative Example 4 with a relatively high viscosity has a better moisturizing effect, but its viscosity is too high and it is not suitable for facial mask products. The moisturizing results of Examples 1-4 are better than those of Comparative Examples 1-3. At the same time, Examples 1-4 and Comparative Examples 1-3 containing water-in-oil emulsion particles have a significantly better moisturizing rate than Comparative Example 5.

[0176] 6. Skin Brightening Effect Test after Use

[0177] Test was carried out using a moreme skin imaging tester. Among the above samples, representative Example 1, Comparative Example 1, and Comparative Example 5 were selected for testing. Three subjects aged 25 - 55 years with similar skin conditions were selected and continuously used the above samples for 28 days, once every two days. The data changes in the number of pigmentation and the pigmentation area of the three consumers were respectively counted at 0, 7, 14, and 28 days of use. The results are as Figure 2 , Figure 3 .

[0178] As can be seen from the figure, the number of pigmentation and the pigmentation area of Example 1 are significantly lower than those of Comparative Example 1 and Comparative Example 5, indicating that the example has a better brightening effect.

[0179] 7. Consumer Use Evaluation

[0180] Thirty volunteers were recruited to use Example 1 and Comparative Example 5 respectively. After use, they filled out a questionnaire. The scoring standard was 1 for the worst and 5 for the best. After removing the highest and lowest values from the statistical data, the average value was calculated to obtain the following data:

[0181] Example 1 Comparative Example 5 Comfort level during use 4.5 4.1 Humidity retention after use 4.6 4.4 Duration of humidity retention after use 4.7 3.5 Skin brightness after use 4.4 3.8 Product satisfaction 4.5 3.9

[0182] It can be seen that consumers' preference for Example 1 is significantly better than that for Comparative Example 5.

[0183] The above examples are only used to illustrate the technical solutions of the present invention, not to limit it. Although the present invention has been described in detail with reference to the foregoing examples, those of ordinary skill in the art should understand that: within the scope of the spirit and essence defined by the claims of the present invention, the technical solutions described in the foregoing examples can be modified, or some or all of the technical features can be equivalently replaced; and these modifications or replacements are still within the scope defined by the claims of the present invention.

Claims

1. A facial mask, characterized in that, It includes a facial mask cloth and facial mask liquid; The facial mask liquid includes the following components in parts by mass: Thickener 0.1 - 2 parts, first humectant 1 - 10 parts, gel particles 0.01 - 1 part, water-in-oil active liquid droplets 1 - 10 parts, first preservative 0.1 - 2 parts, pH regulator 0.1 - 2 parts, soothing active substance 0.1 - 1 part, disodium EDTA 0.01 - 0.2 part, and water 70 - 90 parts; The water-in-oil active liquid droplets are made from the following raw materials in parts by mass: emollient 10 - 50 parts, water-in-oil emulsifier 1 - 5 parts, second humectant 1 - 10 parts, plant extract 0.1 - 5 parts, second preservative 0.1 - 1 part, and water 40 - 70 parts; The viscosity range of the facial mask liquid is 10000 - 25000 mPa·s.

2. The facial mask according to claim 1, characterized in that, The thickener is at least one selected from carbomer, acrylate / C10 - 30 alkyl acrylate cross-linked polymer, polyacrylate cross-linked polymer - 6, xanthan gum, gellan gum, tamarind extract, preferably at least three of carbomer, acrylate / C10 - 30 alkyl acrylate cross-linked polymer, polyacrylate cross-linked polymer - 6, and xanthan gum.

3. The facial mask according to claim 2, wherein The thickener includes the following components in parts by mass: acrylate / C10 - 30 alkyl acrylate cross-linked polymer, carbomer, and xanthan gum. The sum of the parts by mass of acrylate / C10 - 30 alkyl acrylate cross-linked polymer and carbomer is 0.15 - 0.3 part, and the part by mass of xanthan gum is 0.1 - 0.3 part; or The thickener includes the following components in parts by mass: acrylate / C10 - 30 alkyl acrylate cross-linked polymer or carbomer 0.1 - 0.2 part, polyacrylate cross-linked polymer - 6 0.2 - 0.3 part, and xanthan gum 0.1 - 0.3 part.

4. The facial mask according to claim 1, characterized in that, The first humectant is at least one selected from glycerol, butanediol, betaine, trehalose, dipropylene glycol, propylene glycol, sodium hyaluronate, 1,2 - pentanediol, 1,2 - hexanediol; and / or The gel particles are at least one selected from sodium polyacrylate and sodium polyacrylate grafted starch; and / or The first preservative is at least one selected from p - hydroxyacetophenone and 1,2 - hexanediol; and / or The pH regulator is at least one selected from arginine, aminomethylpropanol, and triethanolamine; and / or The soothing active substance is at least one selected from allantoin, dipotassium glycyrrhizinate, centella asiatica extract, ectoine, and portulaca oleracea extract.

5. The facial mask according to claim 1, wherein The emollient is at least one selected from hydrogenated polydecene, squalane, lecithin, phytosterol / octyldodecyl lauroyl glutamate, polydimethylsiloxane, and phenyl silicone oil; and / or The water-in-oil emulsifier is at least one selected from cetyl PEG / PPG - 10 / 1 polydimethylsiloxane, sorbitan oleate, polyglycerol - 4 oleate, polyglycerol - 3 polyricinoleate, PEG - 10 polydimethylsiloxane; and / or The second humectant is at least one selected from glycerol, butanediol, dipropylene glycol, betaine, trehalose; and / or The plant extract is at least one selected from persimmon leaf extract, salvia miltiorrhiza extract, ginseng root extract, and safflower flower extract; and / or The second preservative is at least one selected from p-hydroxyacetophenone and 1,2-hexanediol.

6. The facial mask according to claim 5, wherein The water-in-oil active droplets are prepared by a method comprising the following steps: (1) Dissolve 0.1-5 parts of the plant extract in 20-30 parts of water, and filter for later use; (2) Add 1-10 parts of the second humectant, 0.1-1 part of the second preservative, and the filtrate obtained in step (1) to 20-40 parts of water, heat to 70-80 °C, stir at 100-400 rpm for 20-40 min until all solids are dissolved; (3) Mix 10-50 parts of the emollient and 1-5 parts of the water-in-oil emulsifier, and stir at 100-300 rpm for 20-40 min; (4) Slowly add the solution obtained in step (2) to step (3), control the addition rate to be 3-6 ml / min, the temperature to be 25-80 °C, stir at 100-400 rpm for 30-60 min, and homogenize at 3000-10000 rpm for 5-10 min to obtain the water-in-oil active droplets.

7. The preparation method of the facial mask according to any one of claims 1-6, characterized in that, Comprising the following steps: S1. Disperse the thickener in water and soak for 2-3 h; S2. Add the first humectant, gel particles, the first preservative, and disodium EDTA to step S1, stir at 50-200 rpm for 20-60 min, while heating to 60-80 °C, keep warm for 10-30 min, and homogenize at 1000-5000 rpm until the liquid is uniform; S3. Cool down to 50-60 °C, add the water-in-oil active droplets, and stir at 200-400 rpm for 10-30 min; S4. Cool down to 45-55 °C, add the pH regulator, and stir at 50-200 rpm for 5-30 min; S5. Cool down to below 45 °C, add the soothing active substance to obtain the mask liquid; S6. Fill the mask liquid into a mask bag containing a mask cloth and soak the mask cloth for 4-24 h to obtain the facial mask.

8. The preparation method according to claim 7, characterized in that, The water-in-oil active droplets are prepared by a method comprising the following steps: (1) Dissolve 0.1-5 parts of the plant extract in 20-30 parts of water, and filter for later use; (2) Add 1-10 parts of the second humectant, 0.1-1 part of the second preservative, and the filtrate obtained in step (1) to 20-40 parts of water, heat to 70-80 °C, stir at 100-400 rpm for 20-40 min until all solids are dissolved; (3) Mix 10-50 parts of the emollient and 1-5 parts of the water-in-oil emulsifier, and stir at 100-300 rpm for 20-40 min; (4) Slowly add the solution obtained in step (2) to step (3), control the addition rate to be 3-6 ml / min, the temperature to be 25-80 °C, stir at 100-400 rpm for 30-60 min, and homogenize at 3000-10000 rpm for 5-10 min to obtain the water-in-oil active droplets.

9. The preparation method according to claim 7, characterized in that, For each mask cloth, the addition amount of the mask liquid is 30-45 g.

10. The method of using the facial mask according to any one of claims 1-6, characterized in that, Comprising the following steps: Press the facial mask in your hand to evenly distribute the essence on the mask cloth. Open the facial mask, take out the mask cloth, apply the mask cloth on the face. After 15 - 20 minutes, remove the mask cloth, massage the remaining essence on the face until gel masses are formed and the amount of gel masses no longer increases, then wipe or wash off the formed gel masses.

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