A transdermal hydrogen-injected antioxidant mask and its preparation method

Abstract

This application relates to the field of facial masks, and more particularly to an antioxidant facial mask that allows for transdermal hydrogen absorption and its preparation method. This application utilizes the hydrogen production, storage, and transdermal properties provided by silicon powder to enhance the ability of hydrogen generated by traditional hydrogen-producing facial masks to penetrate the skin, providing enhanced antioxidant properties.

Description

Technical Field

[0001] The present application relates to the field of facial masks, and in particular to an antioxidant facial mask capable of transdermal absorption and hydrogen injection and a preparation method thereof. Background Art

[0002] Hydrogen-producing transdermal facial masks, also known as hydrogen masks, are typically composed of a hydrogen-producing material (such as hydrogen powder or solid hydrogen storage particles) and a mask base (such as non-woven fabric, gel, or dry film). Hydrogen molecules readily enter the mitochondria and cell nucleus, scavenging free radicals. Research has shown that hydrogen exerts antioxidant activity by specifically scavenging hydroxyl radicals, helping to improve skin elasticity, provide anti-aging effects, and offer brightening benefits.

[0003] Typically, facial mask materials use a hydrogen-generating mechanism, such as magnesium-based alloys or corresponding metal oxides and hydroxides. These utilize metals within a water-containing mask system to generate hydrogen, which then penetrates the skin surface to exert its effects. These products are currently widely used. However, these solutions generally fail to address the issue of hydrogen escaping after the mask generates it, resulting in poor absorption into the skin. Summary of the Invention

[0004] The purpose of this application is to provide a facial mask structure that can produce hydrogen while increasing the degree of hydrogen penetration into the skin, reducing the escape of hydrogen to the outside, and thereby improving its antioxidant capacity for the skin.

[0005] First, the present application provides a transdermal absorption hydrogen injection antioxidant mask, which comprises an inner surface layer, a filling layer and an outer surface layer from the inside out;

[0006] The inner surface layer, the filling layer and the outer surface layer are all made of non-woven fabrics, the porosity of the outer surface layer is 0.7 to 0.9 times that of the inner surface layer, and / or the fiber diameter of the outer surface layer is 0.7 to 0.9 times that of the inner surface layer;

[0007] The filling layer includes a first base layer formed by first fibers and a hydrogen-generating material loaded in the first base layer, wherein the hydrogen-generating material includes silicon powder and metal powder, wherein the metal powder is magnesium powder, zinc powder, or a combination of magnesium powder and zinc powder; in the filling layer, the silicon powder has a loading mass percentage of 5 to 10%, and the metal powder has a loading mass percentage of 2.5 to 5%;

[0008] The inner surface layer at least includes a second basal layer and phospholipids loaded in the second basal layer.

[0009] The above-mentioned facial mask system adopts an overall three-layer structure, in which the outer layer adopts a lower porosity and the inner layer adopts a higher porosity, forming an overall pore structure with a certain gradient. This creates an inward and outward pressure difference during the gas escape process, thereby reducing the escape of hydrogen. On this basis, a basic structure for hydrogen generation is formed in the filling layer. This basic structure contains metal powder and silicon powder, among which the silicon powder can form a certain hydrogen adsorption and slow-release system. At the same time, it uses the microporous structure to form micro-reaction cavities on the surface of the silicon powder, thereby regulating the rate of hydrogen production in the system.

[0010] Building on this foundation, after utilizing the established hydrogen production and storage space to control hydrogen release, phospholipids are incorporated into the inner surface layer to enhance the fiber's wettability to the skin. While phospholipids moisturize the skin, they also reduce skin irritation from metal powder and silica fume systems. Furthermore, the inner surface layer acts as a barrier between the filler layer and the skin, enhancing hydrogen absorption and making the mask more gentle, reducing skin irritation.

[0011] Preferably, the metal powder in the filling layer is a mixture of zinc powder and magnesium powder, with the mass ratio of the zinc powder to the magnesium powder being 1:6-15. The layer also contains magnesium hydroxide, with the mass of the magnesium hydroxide being 2-5 times the mass of the metal powder, and the loading mass percentage being no more than 20%. Magnesium hydroxide can be used to adjust the overall pH value, making the reaction process within the filling layer more stable. It also forms a filler structure that absorbs the precipitates of metal hydroxides and metal carbonates produced during the hydrogen production process, thereby improving the overall skin feel of the mask.

[0012] Preferably, the filling layer further comprises sodium bicarbonate, with the loading mass percentage of the sodium bicarbonate being 15-25%. In this solution, sodium bicarbonate has a buffering property, which can control the overall pH stability, further reduce skin irritation, and increase hydrogen production.

[0013] Preferably, sodium alginate is further included, and the loading mass percentage of the sodium alginate is 1 to 3%.

[0014] On the one hand, sodium alginate can act as a viscous material to improve the connection between the inner surface layer and the filling layer. On the other hand, it also has better wettability and adsorption properties, which makes the structure of the mask stronger overall and less irritating to the skin.

[0015] It should be noted that, in the above, the method for calculating the load mass is the ratio of the mass of the substance involved to the mass of the first substrate layer.

[0016] Preferably, the first fiber is a combination of modal fiber and viscose fiber, and the mass ratio of the modal fiber to the viscose fiber is 1:0.2-0.3.

[0017] In the above scheme, a combination of modal fiber and viscose fiber is used as the filling layer. First, the modal fiber as a whole provides a softer performance and better hydrophilicity. Its water-wettable property helps to increase the rate of hydrogen production, thereby providing better hydrogen production performance. At the same time, the better softness of modal fiber can fit the skin and reduce its irritation to the skin. On the basis of the above, a certain amount of viscose fiber is added. On the one hand, it provides better bonding performance, so that a tighter system can be formed between the inner surface layer, the outer surface layer and the filling layer. On the other hand, it also helps to adsorb the hydrogen-producing material and improve the hydrogen production performance.

[0018] Preferably, the ratio of the particle size of the silicon powder to the diameter of the first fiber is 0.1 to 0.8:1.

[0019] In the above scheme, the use of smaller silicon powder particles improves catalytic reaction and hydrogen storage, increasing hydrogen production, reducing hydrogen escape, and controlling the hydrogen reaction rate. Furthermore, smaller silicon powder particles are more delicate overall, making them less likely to cause irritation even if they partially adhere to the skin surface. This also helps hydrogen penetrate the skin better.

[0020] Preferably, the outer layer is a combination of cotton fiber and PET fiber, and the mass ratio of the cotton fiber to the PET fiber is 1:0.2-0.5.

[0021] The cotton fiber provides softness, while the PET fiber provides strength and barrier properties for the outer layer. In the above scheme, the mask has a softer structure while further reducing the possibility of hydrogen gas escaping.

[0022] The mask also includes a wetting agent for soaking the inner, filling, and outer layers prior to use. The wetting agent is a water-glycerin mixture. This water-glycerin mixture improves the mask's wettability and compatibility with the skin surface, while also helping to control hydrogen production and reduce hydrogen escape.

[0023] On the other hand, the present application also relates to a method for preparing the above-mentioned transdermal absorption hydrogen injection antioxidant mask, comprising the following steps:

[0024] S1. Material preparation: configure the inner surface layer, the first base layer and the second base layer, and weigh the required load system;

[0025] S2. Crushing: crushing the materials in the filling layer except the first base layer, and screening to remove large particles;

[0026] S3, mixing: the crushed raw materials in S2 are uniformly mixed with water at a mass concentration of 5-30% to obtain a first mixture; phospholipids are dissolved in water to prepare a second mixture; wherein the mass ratio of the phospholipids to the second base layer in the second mixture is 0.02-0.5:1;

[0027] S4, coating: coating the first mixed material on the first base layer, and coating the second mixed material on the second base layer;

[0028] S5. Hot pressing: The inner surface layer, the filling layer and the outer surface layer are stacked, and the side of the inner surface layer coated with the second mixture is aligned with the side of the filling layer coated with the first mixture, and then hot pressing is performed under moist conditions. The hot pressing temperature is 300-400°C, the pressure is 2-4t, and the contact time is 1-5s.

[0029] S6. Disinfection and packaging.

[0030] In this solution, a coating-hot pressing process is employed. First, coating is used to distribute the hydrogen-generating material primarily on the side of the first base layer facing the inner surface. Then, hot pressing is used to combine the three layers, forming a denser and more robust structure. Overall, the hot pressing step reduces surface roughness, improving skin compatibility, and further bonding the three fiber layers. This results in improved hydrogen production, reduced emissions, and better skin adhesion.

[0031] In summary, the present application provides a transdermal absorption hydrogen-injected antioxidant mask and a preparation method thereof, which utilizes the hydrogen production, hydrogen storage, and transdermal functions provided by silicon powder, thereby improving the tendency of hydrogen generated by traditional hydrogen-producing masks to penetrate into the skin and providing better antioxidant performance. DETAILED DESCRIPTION

[0032] The solution in this application is further described through the following specific implementation methods.

[0033] In this application, the hydrogen transdermal performance of the system was measured through the following experiments.

[0034] A fresh pigskin skin (0.5mm thick, with a tolerance of no more than 10%) was mounted on a diffusion cell with the stratum corneum facing up and the dermis facing down. The skin was then exposed to saline containing a 5% (volume) methylene blue-platinum hydrogen colorimetric reagent. The prepared facial mask was then applied to the stratum corneum side of the pigskin skin. The color fading time in saline was used to assess the transdermal performance of the mask.

[0035] In addition, the softness was measured by bending rigidity according to ISO 9073-7.

[0036] In the following examples, multiple experiments were designed to verify the hydrogen production and transdermal performance of hydrogen-infused facial masks prepared using different methods, as well as the softness of the masks themselves. Additionally, some experimental groups were tested by test subjects to assess their skin feel. Specifically, skin feel was assessed by 10 volunteers, with 1 being the worst and 10 being the best.

[0037] Example 1: The main purpose of this example is to study the content of components loaded in the filler to determine the performance of hydrogen transdermal penetration. Specifically, in this example, the inner surface layer, the filling layer, and the outer surface layer are controlled.

[0038] In this embodiment, the specific preparation method is as follows:

[0039] S1. Material Preparation: Arrange the layer structure of the inner surface layer, filling layer, and outer surface layer, and weigh the system for the required load; wherein the outer surface layer is a spunlace nonwoven fabric made by mixing cotton fiber and PET fiber in a mass ratio of 1:0.3, the filling layer is a spunlace nonwoven fabric made by mixing modal fiber and viscose fiber in a mass ratio of 1:0.25, and the inner surface layer is first configured with a modal fiber spunlace nonwoven fabric as the second base layer. It is generally known that the porosity of the product can be adjusted by adjusting the fiber diameter and spunlace conditions of the nonwoven fabric. Since the nonwoven fabrics used in this application were purchased directly from the manufacturer, the preparation process of the nonwoven fabric will not be described in detail.

[0040] S2. Crushing: crush the materials in the filling layer except the first base layer to 140 mesh, and sieve to remove large particles;

[0041] S3, mixing: the crushed raw materials in S2 are mixed uniformly with water at a mass concentration of 20% to obtain a first mixed material; the phospholipid is dissolved in water to prepare a second mixed material;

[0042] S4. Coating: applying the first mixture to the first base layer and applying the second mixture to the second base layer, wherein the mass of the phospholipid used is 0.03 times the mass of the second base layer;

[0043] S5. Hot pressing: The inner surface layer, the filling layer and the outer surface layer are stacked, and the side of the inner surface layer coated with the second mixture is aligned with the side of the filling layer coated with the first mixture, and then hot pressing is performed under wet conditions. The hot pressing temperature is 300°C, the pressure is 4t, and the contact time is 3s.

[0044] S6. Disinfection and packaging.

[0045] In the final product, the thickness of the filling layer is 0.82mm, the thickness of the inner surface filling layer is 0.28mm, and the thickness of the outer surface layer is 0.24mm. Specifically, in the outer surface layer, the fiber diameter of the cotton fiber and the PET fiber is 19μm, and the porosity is 58%, and the porosity of the modal fiber in the inner surface layer is 70%, and the fiber diameter is 25μm. The above parameters are all measured after hot pressing. The filling layer is a mixed system of modal fiber non-woven fabric and viscose fiber with a fiber diameter of 20μm and a porosity of 84%. On the whole, the thickness of the filling layer is 50-75% of the total thickness, and the total thickness of the filling layer is not more than 1mm. The better solution is that it can maintain a good hydrogen production effect while taking into account a softer skin feel. In fact, it can also be adjusted by yourself during the actual preparation process.

[0046] In this embodiment, in order to maintain the basic hydrogen production performance unchanged, the mass of the metal powder in the filling layer is controlled to remain unchanged, and the added masses of other components are specifically shown in Table 1.

[0047] Table 1

[0048]

[0049] In the above table, the particle sizes of the selected zinc powder and magnesium powder do not exceed 100 μm, and the average particle size of the silicon powder is 10 μm.

[0050] The above examples were tested and the results are shown in Table 2.

[0051] Table 2

[0052]

[0053] The above experiments clearly demonstrate that, in this reaction system, silicon powder overall facilitates hydrogen transdermal production and significantly improves overall bending stiffness. Therefore, the silicon powder mass should be controlled at 5-10% of the total filler layer mass. Otherwise, excessive hardness will result in a stiff mask overall, affecting skin feel. Secondly, magnesium hydroxide significantly impacts hydrogen production performance within the system. However, due to its rounder shape, its impact on skin feel is less pronounced, allowing for a larger addition. Furthermore, sodium bicarbonate acts as a buffer within the system, significantly improving the stability of hydrogen production. For optimal skin feel, its addition level should be 15-20% of the filler layer's nonwoven fabric mass. Sodium alginate also improves skin feel and hydrogen transdermal performance within the system. However, excessive addition can lead to its overflow into the inner surface layer, impairing skin feel.

[0054] Example 2. In this example, based on Examples 1-4, silicon powders of different particle sizes were used, and the optimal usage range of each silicon powder was measured. The specific results are shown in Table 3.

[0055] Table 3

[0056]

[0057] The experimental data above demonstrates that there are significant requirements for silica powder particle size. Increasing silica powder particle size not only affects bending stiffness but also significantly impacts the skin feel of the mask. Furthermore, as shown in Examples 2-4 to 2-6, excessively small particle size results in silica powder exhibiting significant hydrogen adsorption, leading to a significant decrease in hydrogen transdermal performance.

[0058] Example 3. In this example, based on Examples 1-4, the fiber ratio of the filling layer is adjusted. The experimental results are shown in Table 4.

[0059] Table 4

[0060]

[0061] In the above scheme, the fiber diameter of the filling layer remains unchanged, and only the selection of fibers is changed, which has no significant effect on its porosity as a whole.

[0062] The above experiments show that the use of a blend of modal and viscose fibers in this application can maintain a low level of stiffness while improving skin feel and softness. Although the addition of modal fibers significantly improves softness, excessive amounts of modal fibers can also lead to weak bonding between the three layers, making hydrogen gas more likely to escape and affecting the overall skin feel.

[0063] Example 4. In this example, based on Examples 1-4, the amount of phospholipid added to the inner surface layer was adjusted. The specific experimental results are shown in Table 5.

[0064] Table 5

[0065]

[0066] The above experimental results show that phospholipids can significantly improve hydrogen permeability and skin feel. Phospholipids themselves have a certain emollient effect and good compatibility with the skin, which further facilitates the skin's absorption of other substances, especially hydrogen. The optimal phospholipid content is 0.01 to 0.05 times that of the second basal layer. Exceeding 0.05 times the content of phospholipids, while not significantly affecting overall performance, is not only expensive, but also prone to migration to the filling layer after long-term storage, potentially weakening hydrogen production.

[0067] Example 5. In this example, based on Examples 1-4, the selection of outer layer fibers, porosity and fiber diameter used are adjusted. The adjustment results are shown in Table 6.

[0068] Table 6

[0069]

[0070] In the above scheme, porosity can be adjusted by adjusting fiber diameter, hydroentanglement conditions, and hot pressing. To adjust porosity, the prepared outer layer can be hot pressed separately to reduce porosity. Since hot pressing can make the entire surface smoother and provide a better skin feel, hot pressing does not affect other properties, so the hot pressing conditions are not further described here.

[0071] The above examples were tested, and the results are shown in Table 7.

[0072] Table 7

[0073]

[0074] In the above scheme, a denser outer layer, such as one with lower porosity or smaller fiber diameter, can help reduce hydrogen gas escape, encourage hydrogen gas diffusion toward the skin, and thus reduce the time it takes for the reagent to change color. However, this can also lead to a poorer skin feel and reduced bending stiffness. Furthermore, increasing the amount of PET fiber used in fiber selection can simultaneously increase stiffness, reduce reagent color change time, and reduce hydrogen gas escape. The optimal overall cotton fiber to PET fiber mass ratio is within the range of 1:0.2 to 0.5.

[0075] This specific embodiment is merely an explanation of the present application and is not a limitation of the present application. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed, but as long as they are within the scope of the claims of the present application, they are protected by the patent law.

Claims

1. A transdermal hydrogen-injected antioxidant mask, characterized in that: From the inside out, it includes the inner surface layer, the filling layer and the outer surface layer; The inner surface layer, the filling layer and the outer surface layer are all made of non-woven fabrics, the porosity of the outer surface layer is 0.7 to 0.9 times that of the inner surface layer, and / or the fiber diameter of the outer surface layer is 0.7 to 0.9 times that of the inner surface layer; The filling layer includes a first base layer formed by first fibers and a hydrogen-producing material loaded in the first base layer, wherein the hydrogen-producing material includes silicon powder and metal powder, wherein the metal powder is magnesium powder, zinc powder, or a combination of magnesium powder and zinc powder; in the filling layer, the silicon powder has a loading percentage by mass of 5 to 10%, and the metal powder has a loading percentage by mass of 2.5 to 5%; and the filling layer further includes magnesium hydroxide, wherein the mass of the magnesium hydroxide is 2 to 5 times the mass of the metal powder, and the loading percentage by mass is not higher than 20%; The filling layer further comprises sodium bicarbonate, and the loading mass percentage of the sodium bicarbonate is 15 to 25%; The filling layer further includes sodium alginate, and the loading mass percentage of the sodium alginate is 1 to 3%; The ratio of the particle size of the silicon powder to the diameter of the first fiber is 0.1 to 0.8:1; The inner surface layer at least comprises a second basal layer and phospholipids loaded in the second basal layer; The outer layer is a combination of cotton fiber and PET fiber, and the mass ratio of the cotton fiber to the PET fiber is 1:0.2-0.

5.

2. The transdermal hydrogen-injected antioxidant mask according to claim 1, characterized in that: In the filling layer, the metal powder is a mixture of zinc powder and magnesium powder, and the mass ratio of the zinc powder to the magnesium powder is 1:6-15.

3. The transdermal hydrogen-injected antioxidant facial mask according to claim 2, characterized in that: The first fiber is a combination of modal fiber and viscose fiber, and the mass ratio of the modal fiber to the viscose fiber is 1:0.2-0.

3.

4. The transdermal hydrogen-injected antioxidant facial mask according to claim 1, characterized in that: The inner surface layer is a modal fiber non-woven fabric.

5. The transdermal hydrogen-injected antioxidant facial mask according to claim 1, characterized in that: The invention also comprises a wetting agent for wetting the inner surface layer, the filling layer and the outer surface layer before use, wherein the wetting agent is a water-glycerin mixed system.

6. The method for preparing the transdermal hydrogen-infused antioxidant facial mask according to any one of claims 1 to 5, characterized in that: The steps include: S1. Material preparation: configure the inner surface layer, the first base layer and the second base layer, and weigh the required load system; S2. Crushing: crushing the materials in the filling layer except the first base layer, and screening to remove large particles; S3, mixing: the crushed raw materials in S2 are uniformly mixed with water at a mass concentration of 5-30% to obtain a first mixture; phospholipids are dissolved in water to prepare a second mixture; wherein, in the second mixture, the mass ratio of the phospholipids to the second base layer is 0.01-0.05:1; S4, coating: coating the first mixed material on the first base layer, and coating the second mixed material on the second base layer; S5. Hot pressing: The inner surface layer, the filling layer, and the outer surface layer are stacked, and the side of the inner surface layer coated with the second mixture is aligned with the side of the filling layer coated with the first mixture, and then hot pressing is performed under wet conditions. The hot pressing temperature is 300-400°C, the pressure is 2-4t, and the contact time is 1-5s. S6. Disinfection and packaging.

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