A microcurrent facial mask that generates electricity through water evaporation and its preparation method

Abstract

The present invention relates to a microcurrent facial mask that generates electricity through water evaporation and a preparation method thereof, belonging to the field of cosmetic technology. The microcurrent facial mask is prepared by uniformly coating an electrostatic slurry on a membrane cloth loaded with electrodes. The double electric layer formed by the interaction between carbon nanosphere particles in the electrostatic slurry and water is used to drive the movement of counterions during the evaporation of water to generate microcurrent, and the generated microcurrent is then collected by the electrodes. No additional micropower supply device or micropower supply is required. The method of use is simple, the face fits well, and the appearance is beautiful. At the same time, Ag nanowires are added to the electrostatic slurry, and the internal electric field formed by the microcurrent can promote Ag to + In addition, the preparation method of the microcurrent facial mask is simple, low in cost, easy to mass produce, and has good application prospects.

Description

Technical Field

[0001] The invention relates to a micro-current facial mask capable of generating electricity by self-generation through water evaporation and a preparation method thereof, belonging to the technical field of cosmetics. Background Art

[0002] As material living standards improve, people's pursuit of appearance and their focus on beauty are growing. To meet this demand, a variety of microcurrent beauty devices and masks have emerged on the market. Both these devices and masks utilize microcurrent to enhance beauty effects. Microcurrent (approximately 1 to 8 μA) upon contact with the skin opens pores, promoting local blood circulation and dilating facial capillaries, enhancing cellular absorption capacity and, in turn, facilitating the absorption of essences and nutrients in the mask. Microcurrent can also stimulate the subcutaneous tissue and muscles, helping cells produce more adenosine triphosphate, boosting collagen production and repairing the skin's elastic fibers and colloid layer, thereby smoothing and reducing wrinkles.

[0003] Current microcurrent beauty devices are generally expensive, not enough to satisfy everyone's needs. Most commercially available microcurrent facial masks rely on a micropower supply built into the mask itself, or require an external micropower supply for charging. These masks are cumbersome to use and fail to achieve optimal efficacy, fit, and aesthetics. Therefore, there is an urgent need for a microcurrent beauty product that is simple to use, delivers significant results, and is affordable. Summary of the Invention

[0004] In response to the problems of current microcurrent beauty products being expensive, inconvenient to carry, and complicated to use, the present invention provides a microcurrent facial mask that generates electricity through water evaporation and a preparation method thereof. The microcurrent facial mask is attached to the face and can generate microcurrent through water evaporation to promote the absorption of essence and nutrients in the mask. No additional micropower device or micropower supply is required. The usage method is simple, the mask fits the face well, and the mask is beautiful. In addition, the preparation method of the microcurrent facial mask is simple, the cost is low, and it is easy to mass produce, and it has good application prospects.

[0005] The objectives of the present invention are achieved through the following technical solutions.

[0006] A microcurrent facial mask that generates electricity through water evaporation, wherein the microcurrent facial mask is prepared by uniformly coating an electricity-generating slurry on a membrane cloth loaded with electrodes;

[0007] Among them, the electrodes loaded on the membrane cloth are used to collect the microcurrent generated by the facial mask; the electricity-generating slurry is prepared from carbon nanospheres, thickeners and compatibilizers, and is coated on the membrane cloth to form a conductive path; the thickener is methyl cellulose, carboxymethyl cellulose or ethyl cellulose; the compatibilizer is polyoxyethylene castor oil, polyglycerol fatty acid ester or pineol.

[0008] Preferably, in the electrogenerating slurry, the mass ratio of the carbon nanospheres, the thickener, and the compatibilizer is 1:2:5 to 1:2:7, and the total thickness of the electrogenerating slurry coated on the membrane cloth is more preferably 100 to 200 μm.

[0009] Preferably, the diameter of the carbon nanospheres is 50 to 150 nm.

[0010] Preferably, the electrodes are made of a flexible electrode material, such as conductive carbon black, and the pattern of the electrodes is an interdigitated electrode.

[0011] Preferably, the membrane fabric is non-woven fabric, pure cotton fabric or silk fabric, and the thickness is more preferably 120 to 190 μm.

[0012] Preferably, the electrolytic slurry further comprises Ag nanowires, and the carbon nanospheres are uniformly loaded on the Ag nanowires. At this time, the mass ratio of the sum of the mass of the Ag nanowires and the carbon nanospheres to the thickener and the compatibilizer is 1:2:5 to 1:2:7, and the mass ratio of the Ag nanowires to the carbon nanospheres is more preferably 1:(8-10). The added Ag nanowires can release a trace amount of Ag. + , so that the mask has antibacterial and anti-inflammatory functions.

[0013] Preferably, the length of the Ag nanowire is 10-15 μm.

[0014] The principle of the microcurrent mask's cosmetic effect is as follows: when using, soak the microcurrent mask in water or essence, and then apply it to the face. Due to the interaction between the carbon nanosphere particles and water, the surface charge will be redistributed to form a double layer. As the water evaporates, the counterions in the double layer will flow with the evaporation of water, thereby generating microcurrent. The generation of microcurrent can promote skin blood circulation and metabolism, help to fade scars, remove wrinkles, and better absorb nutrients in the essence; at the same time, the internal electric field formed by the microcurrent can promote Ag + Release of Ag + It can disrupt the metabolic process inside bacterial cells, inhibit bacterial growth and cause their death, and has good bactericidal and anti-inflammatory functions. It can be used for sedation, anti-inflammatory and stabilization of skin with mild inflammation or after medical beauty technology. + Under the joint action of the two, it can not only enhance the absorption of the essence in the mask, but also achieve the function of sterilization and anti-inflammation.

[0015] The preparation of the microcurrent facial mask of the present invention comprises the following steps:

[0016] (1) When there are no Ag nanowires: the carbon nanospheres, thickener and solvent are mixed evenly to obtain an electrogenerating slurry;

[0017] When containing Ag nanowires: carbon nanospheres, Ag nanowires, a thickener and a compatibilizer are mixed, and stirred at 60-70° C. for 2-3 hours to load the carbon nanosphere particles on the Ag nanowires, thereby obtaining an electro-generating slurry;

[0018] (2) First, electrodes are prepared on the membrane cloth, and then the electro-generating slurry is evenly coated on both surfaces of the membrane cloth, and then placed in a heat treatment at 200-220°C for 2-3 hours. After cooling, it is treated with a plasma with a power of 120-150W for 1-2 minutes to obtain the microcurrent facial mask.

[0019] Beneficial effects:

[0020] (1) The microcurrent facial mask of the present invention is provided with electrodes and an electrogenerating slurry on the membrane cloth. The double electric layer formed by the interaction between the carbon nanosphere particles in the electrogenerating slurry and water drives the movement of counterions to generate microcurrent during the evaporation of water. The generated microcurrent is then collected by the electrodes. No additional micropower device or micropower supply is required. The method of use is simple, the mask fits the face well and is aesthetically pleasing.

[0021] (2) The Ag nanowires added to the microcurrent mask of the present invention can promote the internal electric field formed by the microcurrent to form Ag nanowires. + Release of Ag + It can disrupt the metabolic process inside bacterial cells, inhibit bacterial growth and cause their death, and has good bactericidal and anti-inflammatory functions. In addition, the Ag nanowires are intertwined and staggered in a dendritic shape, and the carbon nanosphere particles are evenly loaded on the Ag nanowires, which is conducive to improving the combined effect of carbon nanospheres and Ag nanowires, and can continuously generate microcurrent, promote the absorption of nutrients in the mask, and promote Ag + The release of bacteria makes the mask have the function of sterilization and anti-inflammation.

[0022] (3) The microcurrent mask described in the present invention primarily utilizes the double electric layer formed by the interaction between the carbon nanosphere particles in the electrogenerating slurry and water, which drives the movement of counterions during water evaporation to generate microcurrent. The carbon nanosphere content affects the number of mobile ions and the magnitude of the microcurrent during water evaporation, thereby affecting the cosmetic effect. Furthermore, the particle size of the carbon nanospheres affects the specific surface area. A larger specific surface area results in a greater number of mobile ions during water evaporation, a larger microcurrent, and a better cosmetic effect.

[0023] (4) The microcurrent mask of the present invention releases Ag by Ag nanowires under the action of an electric field. +To achieve the effect of sterilization and anti-inflammation, Ag + Too little will affect the bactericidal and anti-inflammatory effects, while too much will put a burden on the human body.

[0024] (5) During the preparation of the microcurrent mask described in the present invention, the active oxygen-containing functional groups on the surface of the carbon nanospheres are increased by heat treatment, and more ions are dissociated to move in a direction during water evaporation, thereby increasing the microcurrent; the hydrophilicity of the slurry loaded on the mask is increased by plasma treatment, which is beneficial to increasing the microcurrent generated during water evaporation. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 Schematic diagram of the electrode structure prepared on the membrane cloth of Example 1.

[0026] Figure 2 This is a photo of the microcurrent facial mask prepared in Example 1 that generates electricity through water evaporation. DETAILED DESCRIPTION

[0027] The present invention will be further described below with reference to specific embodiments, wherein the methods are conventional methods unless otherwise specified, and the raw materials can be obtained from public commercial channels unless otherwise specified.

[0028] In the following embodiments:

[0029] The thickener is hydroxyethyl cellulose, purchased from Aladdin Reagent Co., Ltd.

[0030] The compatibilizer is terpineol, purchased from Aladdin Reagent Co., Ltd.

[0031] The non-woven fabric, with a thickness of about 190 μm, was purchased from Guangzhou Zhengyi Non-woven Fabric Co., Ltd.

[0032] The pure cotton fabric, with a thickness of about 160 μm, was purchased from Xinxing Nonwoven Products Factory;

[0033] The silk fabric, with a thickness of about 120 μm, was purchased from Foshan Yaotiao Cosmetics Co., Ltd.

[0034] Carbon nanospheres with diameters of approximately 50 nm, 100 nm, and 150 nm were purchased from Bocheng Metallurgical Co., Ltd.

[0035] The Ag nanowires were prepared by slowly adding 0.6 M sodium citrate solution to 0.1 M silver nitrate solution (the molar ratio of sodium citrate to silver nitrate was 6:1), then adding 100 mL of deionized water and 2 mL of 1 mM sodium dodecylsulfate solution at room temperature (25°C). The mixture was then transferred to a tetrafluoroethylene-lined autoclave and maintained at 120°C for 60 minutes. The mixture was naturally cooled to room temperature, and the product was washed, centrifuged, and dried to obtain Ag nanowires with a length of ~10 μm.

[0036] Example 1

[0037] (1) Adding a conductive material, hydroxyethyl cellulose, and terpineol to 15 mL of anhydrous ethanol in a mass ratio of 1:2:5, and then stirring at 60°C for 2 hours to load carbon nanosphere particles on Ag nanowires, thereby obtaining a corresponding electrolytic slurry for later use; wherein the conductive material is composed of carbon nanospheres with a diameter of 50 nm and Ag nanowires with a length of 10 μm in a mass ratio of 8:1;

[0038] (2) A non-woven fabric with a thickness of about 190 μm was selected as the membrane cloth, and conductive carbon black was screen-printed on the membrane cloth to form two interdigitated electrodes (such as Figure 1 As shown), and dried at 60 ° C for 8 h;

[0039] (3) The electro-generating slurry is evenly coated on both surfaces of the membrane cloth with interdigitated electrodes, and the total thickness of the electro-generating slurry coated on the membrane cloth is 195 μm; then heat-treated at 200°C for 2 hours, naturally cooled, and then treated with a plasma with a power of 120W for 1 minute to obtain a micro-current mask that generates electricity by evaporating water. Figure 2 shown.

[0040] After the microcurrent facial mask prepared in Example 1 was soaked in water, its short-circuit current was measured using an electrometer, and the short-circuit current was measured to be 6.1 μA.

[0041] Example 2

[0042] On the basis of Example 1, only the particle size of the carbon nanospheres was changed from 50 nm to 100 nm. The other steps and conditions were the same as those in Example 1, and a microcurrent mask that generates electricity through water evaporation was obtained accordingly.

[0043] After the microcurrent facial mask prepared in Example 2 was soaked in water, its short-circuit current was measured using an electrometer, and the short-circuit current was measured to be 4.8 μA.

[0044] Example 3

[0045] (1) Adding a conductive material, hydroxyethyl cellulose, and terpineol to 15 mL of anhydrous ethanol in a mass ratio of 1:2:6, and then stirring at 60°C for 2 hours to load carbon nanosphere particles on Ag nanowires, thereby obtaining a corresponding electrolytic slurry for later use; wherein the conductive material is composed of carbon nanospheres with a diameter of 100 nm and Ag nanowires with a length of 10 μm in a mass ratio of 9:1;

[0046] (2) A pure cotton fabric with a thickness of about 160 μm was selected as the membrane cloth, and conductive carbon black was screen-printed on the membrane cloth to form two interdigitated electrodes (the same as in Example 1), and then dried at 60° C. for 8 h;

[0047] (3) The electro-generating slurry was evenly coated on both surfaces of the membrane cloth with interdigitated electrodes, and the total thickness of the electro-generating slurry coated on the membrane cloth was 162 μm; then, the membrane cloth was heat treated at 200°C for 2 h, naturally cooled, and then treated with a plasma with a power of 120 W for 1 min to obtain a micro-current mask that generates electricity through water evaporation.

[0048] After the microcurrent facial mask prepared in Example 3 was soaked in water, its short-circuit current was measured using an electrometer, and the short-circuit current was measured to be 4.7 μA.

[0049] Example 4

[0050] On the basis of Example 3, only the particle size of the carbon nanospheres was changed from 100 nm to 150 nm. The other steps and conditions were the same as those in Example 3, and accordingly, a microcurrent mask that generates electricity through water evaporation was obtained.

[0051] After the microcurrent facial mask prepared in Example 4 was soaked in water, its short-circuit current was measured using an electrometer, and the short-circuit current was measured to be 4.5 μA.

[0052] Example 5

[0053] (1) Adding a conductive material, hydroxyethyl cellulose, and terpineol to 15 mL of anhydrous ethanol in a mass ratio of 1:2:7, and then stirring at 60°C for 2 hours to load carbon nanosphere particles on Ag nanowires, thereby obtaining a corresponding electrolytic slurry for later use; wherein the conductive material is composed of carbon nanospheres with a diameter of 150 nm and Ag nanowires with a length of 10 μm in a mass ratio of 10:1;

[0054] (2) A silk fabric with a thickness of about 120 μm was selected as the membrane cloth, and conductive carbon black was screen-printed on the membrane cloth to form two interdigitated electrodes (the same as in Example 1), and then dried at 60° C. for 8 h;

[0055] (3) The electro-generating slurry was evenly coated on both surfaces of the membrane cloth with interdigitated electrodes, and the total thickness of the electro-generating slurry coated on the membrane cloth was 122 μm; then, the membrane cloth was heat treated at 200°C for 2 h, naturally cooled, and then treated with a plasma with a power of 120 W for 1 min to obtain a micro-current mask that generates electricity through water evaporation.

[0056] After the microcurrent facial mask prepared in Example 5 was soaked in water, its short-circuit current was measured using an electrometer, and the short-circuit current was measured to be 2.5 μA.

[0057] Comparative Example 1

[0058] On the basis of Example 1, the mass ratio of the conductive material, hydroxyethyl cellulose and terpineol was modified to 1:3:8, and the total thickness coated on the membrane cloth was reduced by half (that is, the total coating thickness was 97.5 μm at this time). The other steps and conditions were the same as those in Example 1, and a microcurrent mask that generated electricity through water evaporation was obtained accordingly.

[0059] After the microcurrent facial mask prepared in Comparative Example 1 was soaked in water, its short-circuit current was measured using an electrometer, and the short-circuit current was measured to be 120 nA.

[0060] Comparative Example 2

[0061] On the basis of Example 3, except that the heat-treated facial mask was not subjected to plasma treatment, other steps and conditions were the same as those in Example 3, and accordingly, a microcurrent facial mask that generates electricity through water evaporation was obtained.

[0062] After the microcurrent facial mask prepared in Comparative Example 2 was soaked in water, its short-circuit current was measured using an electrometer, and the short-circuit current was measured to be 800 nA.

[0063] Comparative Example 3

[0064] On the basis of Example 5, the membrane cloth coated with the electricity-generating slurry is not heat-treated, but directly subjected to plasma treatment. The other steps and conditions are the same as those in Example 5, and accordingly, a microcurrent mask that generates electricity through water evaporation is obtained.

[0065] After the microcurrent facial mask prepared in Comparative Example 3 was soaked in water, its short-circuit current was measured using an electrometer, and the short-circuit current was measured to be 442 nA.

[0066] In summary, the above are only preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A microcurrent facial mask that generates electricity through water evaporation, characterized by: The microcurrent facial mask is prepared by uniformly coating an electro-generating slurry on a membrane cloth loaded with electrodes; The electrogenic slurry is prepared from carbon nanospheres, Ag nanowires, a thickener, and a compatibilizer; wherein the thickener is hydroxyethyl cellulose and the compatibilizer is terpineol; The mass ratio of the sum of the mass of carbon nanospheres and Ag nanowires to the mass of the thickener and the compatibilizer is 1:2:5 to 1:2:7; The mass ratio of the Ag nanowires to the carbon nanospheres is 1:(8-10); The method for preparing the microcurrent facial mask that generates electricity through water evaporation comprises the following steps: (1) After mixing carbon nanospheres, Ag nanowires, thickener and phase solvent, stir at 60-70 °C for 2-3 h to obtain an electrogenerating slurry; (2) first preparing electrodes on the membrane cloth, then evenly coating the electrolytic slurry on both surfaces of the membrane cloth, then placing it in a heat treatment at 200-220°C for 2-3 hours, cooling it, and then using a plasma treatment with a power of 120-150 W for 1-2 minutes to obtain the microcurrent facial mask; The total thickness of the electrolytic slurry coated on the membrane cloth is 100-200 μm.

2. The microcurrent facial mask that generates electricity through water evaporation according to claim 1, characterized in that: The diameter of carbon nanospheres is 50~150 nm.

3. The microcurrent facial mask that generates electricity through water evaporation according to claim 1, characterized in that: The length of the Ag nanowires is 10~15 μm.

4. The microcurrent facial mask that generates electricity through water evaporation according to claim 1, characterized in that: Conductive carbon black is used to make the electrodes.

5. The microcurrent facial mask that generates electricity through water evaporation according to claim 1 or 4, characterized in that: The electrode pattern is an interdigitated electrode.

6. The microcurrent facial mask that generates electricity through water evaporation according to claim 1, characterized in that: The membrane fabric is non-woven fabric, pure cotton fabric or silk fabric with a thickness of 120~190 μm.

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