A composition and mask

Abstract

The present application discloses a composition and a mask, the composition is used for preparing a functional layer of the mask, the composition comprises a plurality of gas generating particles and a dispersing agent, the dispersing agent comprises a hydrophobic medium and a plurality of dispersed particles, the hydrophobic medium is coated on the surface of the plurality of gas generating particles to form a hydrophobic coating layer, a plurality of the dispersed particles are arranged in the hydrophobic coating layer and between the plurality of gas generating particles, for separating the plurality of gas generating particles, the gas generating particles are dispersed in the hydrophobic medium through the dispersed particles.

Description

Technical Field

[0001] This invention relates to the field of skin care and biomedical materials, specifically to a composition and a face mask. Background Technology

[0002] As skin problems become more and more common, consumers' demands for skincare products are no longer limited to basic cleansing and moisturizing, but are pursuing a greater variety of skincare effects. Gas-generating masks are currently a mainstream mask product, but there is a problem with uncontrollable gas release in related technologies.

[0003] Therefore, developing a composition and facial mask that effectively controls gas release is a problem that urgently needs to be solved in this field. Summary of the Invention

[0004] The present invention aims to address, to a certain extent, one of the technical problems in related technologies. To this end, the present invention provides a composition and a facial mask.

[0005] To achieve the above objectives, as a first aspect of the present invention, the present invention provides a composition for preparing a functional layer of a facial mask. The composition includes a plurality of gas-generating particles and a dispersant. The dispersant includes a hydrophobic medium and a plurality of dispersing particles. The hydrophobic medium coats the surface of the plurality of gas-generating particles to form a hydrophobic coating layer. The plurality of dispersing particles are disposed in the hydrophobic coating layer and located between the plurality of gas-generating particles to separate the plurality of gas-generating particles. The gas-generating particles are dispersed in the hydrophobic medium by the dispersing particles.

[0006] Furthermore, the dispersed particles have a porous structure, and at least some of the gas-generating particles are adsorbed on the surface and inside of the dispersed particles through the porous structure.

[0007] Furthermore, the material of the dispersed particles includes at least one of magnesium oxide, aluminum oxide, silicon dioxide, magnesium stearate, zeolite molecular sieve, kaolin, bentonite, diatomaceous earth, and ceramic powder.

[0008] Furthermore, in the dispersant, the mass ratio of the hydrophobic medium to the dispersed particles is between 3:1 and 10:1.

[0009] Furthermore, the dispersant also includes a second organic dispersion medium having hydroxyl and / or carboxyl groups, which adsorbs the gas-generating particles and coats the surface of the gas-generating particles through the hydroxyl or carboxyl groups.

[0010] Furthermore, in the dispersant, the mass ratio of the hydrophobic medium, the dispersing particles, and the second organic dispersing medium is between 3:1:0.5 and 10:1:0.01.

[0011] Furthermore, the gas-producing particles include a plurality of first particles and a plurality of second particles, wherein the first particles are used to produce hydrogen and the second particles are used to produce carbon dioxide.

[0012] Further, the components of the composition, in parts by mass, include: The first particle requires 8-15 portions; The second particle is 4-28 portions; 30-60 parts of hydrophobic medium; 2-22 parts of dispersed granules; The mass ratio of the first particle to the second particle is between 1:0.5 and 1:3.

[0013] Furthermore, the composition also includes a pH adjuster for adjusting the pH between the gas-generating particles and the hydrophobic medium.

[0014] As a second aspect of this application, a face mask is disclosed, the face mask comprising a permeable layer and a functional layer stacked along the thickness direction, the components of the functional layer comprising the composition described above.

[0015] Furthermore, the permeation layer includes a rate regulating layer and a barrier layer, and the functional layer is disposed between the rate regulating layer and the barrier layer. The rate regulating layer is used to regulate the permeation rate of liquid into the functional layer, and the barrier layer is used to block the gas generated by the functional layer from escaping towards the barrier layer.

[0016] Furthermore, the rate control layer comprises a regenerated cellulose nonwoven fabric bonded with hot melt adhesive, the thickness of the rate control layer is between 0.2 mm and 0.5 mm, and the basis weight of the rate control layer is 40 g / m². 2 Up to 55 g / m 2 Between, the barrier layer comprises a nonwoven fabric laminated with an aluminum film or an aluminized film, wherein the material of the nonwoven fabric includes at least one of cellulose fiber, resin and PET.

[0017] Furthermore, the mask also includes a water-based wet film stacked along the thickness direction, the water-based wet film being disposed on the side of the rate control layer away from the functional layer and being adhered to the rate control layer.

[0018] This invention provides a composition for a facial mask, in which a hydrophobic medium coats the surface of gas-generating particles to form a hydrophobic coating layer, while dispersed particles are disposed within this coating layer and located between the gas-generating particles. Through this microstructural design of "hydrophobic coating layer + dispersed particles," the dispersed particles, acting as dispersion spacers, effectively prevent direct contact and aggregation of the gas-generating particles in the hydrophobic medium, maintaining a uniform and stable dispersion of the gas-generating particles in the composition. Simultaneously, the hydrophobic coating layer, acting as a "mass transfer barrier" on the surface of the gas-generating particles, effectively regulates the diffusion rate of water molecules to the surface of the gas-generating particles and the gas generation rate, avoiding problems such as violent reactions and concentrated gas release caused by rapid influx. The dispersed particles, positioned within the hydrophobic coating layer, prevent adjacent gas-generating particles from agglomerating through contact with the hydrophobic coating layer, thus providing a physical barrier. The synergistic effect of the hydrophobic coating layer and the dispersed particles enables the composition to achieve a "synchronous start-up and gentle release" reaction characteristic upon contact with moisture, solving the technical problems of uncontrollable reaction rates and uneven gas release in existing gas-generating materials.

[0019] The face mask prepared using the above-described composition of this application has the characteristics of uniform and stable gas production with controllable rate. The hydrophobic coating layer enables the stable coexistence of multiple gas-producing reaction systems, reduces pH interference, provides a stable environment for the synergistic release of multiple gases, and releases them gently and more evenly at various locations, avoiding localized heating and improving the safety of product use.

[0020] These features and advantages of the present invention will be disclosed in detail in the following specific embodiments and accompanying drawings. The preferred embodiments or means of the present invention will be shown in detail in conjunction with the accompanying drawings, but are not intended to limit the technical solutions of the present invention. In addition, each of these features, elements and components appearing in the following text and drawings is a plurality of, and different symbols or numbers are used for convenience of representation, but all represent parts with the same or similar construction or function. Attached Figure Description

[0021] The present invention will be further described below with reference to the accompanying drawings: Figure 1 A schematic diagram illustrating one embodiment of the composition provided by the present invention; Figure 2 A schematic diagram illustrating one embodiment of the face mask provided by the present invention; Figure 3 This is a test chart showing the hydrogen transdermal delivery data of embodiments and comparative examples of the present invention; Figure 4 This is a test chart showing the transdermal carbon dioxide transdermal delivery data of embodiments and comparative examples of the present invention.

[0022] Explanation of reference numerals in the attached figures 1: Composition; 10: Hydrophobic medium; 11: Dispersed particles; 12: Gas-generating particles; 2: Mask; 20: Rate control layer; 21: Functional layer; 22: Barrier layer. Detailed Implementation

[0023] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described are intended to explain the present invention and should not be construed as limiting the invention.

[0024] The terms "an embodiment," "example," or "example" used in this specification refer to a particular feature, structure, or characteristic described in connection with the embodiment itself that may be included in at least one embodiment disclosed in this application. The phrase "in an embodiment" appearing in various places throughout the specification does not necessarily refer to the same embodiment.

[0025] It should be noted that in this invention, "inner side" refers to the side of the packaging bag that is close to the packaged item, and "outer side" refers to the side that is away from the packaged item.

[0026] This invention relates to the fields of skin care and biomedical materials, specifically to a dual-gas dry film fabric that can synergistically generate carbon dioxide and hydrogen when triggered by a wet film, and is particularly suitable for cosmetic and adjunctive treatment scenarios that promote anti-inflammatory and antioxidant effects and improve skin microcirculation.

[0027] The inventors of this application have discovered that gas therapy is increasingly widely used in skin care. Hydrogen gas, due to its selective scavenging properties of harmful reactive oxygen species such as hydroxyl radicals, has been proven to be effective in anti-inflammation and anti-oxidation. Carbon dioxide, through the Bohr effect, can reduce the affinity of hemoglobin for oxygen, promote the dilation of skin capillaries, and enhance oxygen supply to skin tissue. Theoretically, applying these two gases synergistically to the skin could achieve a combined effect of "anti-inflammatory repair + enhanced circulation," but current technologies lack a carrier system capable of precisely controlling the simultaneous release of these two gases.

[0028] Existing hydrogen-producing skin care products have obvious limitations. For example, hydrogen-rich masks disclosed in related technologies rely on the reaction of hydrogenated coral powder raw materials with water to produce hydrogen. Not only is the hydrogen release concentrated and the residence time short, but it is also easy to generate strong alkaline substances that can burn the skin. Secondly, there are also hydrogen creams with related technologies that achieve long-lasting hydrogen release through Pt / TiO2 photocatalysis, but they can only produce hydrogen in one way and the amount of hydrogen produced is small.

[0029] In the application of carbon dioxide, existing technologies mostly employ high-pressure gas introduction or chemical foaming agents, which suffer from uncontrollable release and low gas utilization. Meanwhile, existing dual-gas care products generally rely on dedicated wet films for triggering and have not addressed the short hydrogen residence time. Therefore, developing a highly adaptable, safe, and controllable dual-gas dry film carrier is key to overcoming the bottlenecks of existing technologies.

[0030] Currently, the application of carbon dioxide in skincare relies heavily on high-pressure gas delivery or chemical foaming agent technology. The former requires specialized equipment, while the latter is prone to uncontrollable gas release rates and low transdermal utilization. It's worth noting that there are currently no commercially available skincare products that use a hydrogen-carbon dioxide dual-gas mask.

[0031] To address the issues of single gas release and short hydrogen residence time in existing technologies, this invention provides a dual-gas mask sheet. By combining the mask sheet with any wet film, the gentle and simultaneous release of carbon dioxide and hydrogen can be achieved. Carbon dioxide is used to extend the hydrogen residence time, thus achieving a synergistic skincare effect.

[0032] To achieve the above objectives, as a first aspect of the present invention, the present invention provides a composition 1, such as... Figure 1 and Figure 2 As shown, composition 1 is used to prepare the functional layer of a face mask. Composition 1 includes a plurality of gas-generating particles 12 and a dispersant. The dispersant includes a hydrophobic medium 10 and a plurality of dispersing particles 11. The hydrophobic medium 10 coats the surface of the plurality of gas-generating particles 12 to form a hydrophobic coating layer. The plurality of dispersing particles 11 are disposed in the hydrophobic coating layer and located between the plurality of gas-generating particles 12 to separate the plurality of gas-generating particles 12. The gas-generating particles 12 are dispersed in the hydrophobic medium 10 through the dispersing particles 11.

[0033] This invention provides a composition for a facial mask, in which a hydrophobic medium coats the surface of gas-generating particles to form a hydrophobic coating layer, while dispersed particles are disposed within this coating layer and located between the gas-generating particles. Through this microstructural design of "hydrophobic coating layer + dispersed particles," the dispersed particles, acting as dispersion spacers, effectively prevent direct contact and aggregation of the gas-generating particles in the hydrophobic medium, maintaining a uniform and stable dispersion of the gas-generating particles in the composition. Simultaneously, the hydrophobic coating layer, acting as a "mass transfer barrier" on the surface of the gas-generating particles, effectively regulates the diffusion rate of water molecules to the surface of the gas-generating particles and the gas generation rate, avoiding problems such as violent reactions and concentrated gas release caused by rapid influx. The dispersed particles, positioned within the hydrophobic coating layer, prevent adjacent gas-generating particles from agglomerating through contact with the hydrophobic coating layer, thus providing a physical barrier. The synergistic effect of the hydrophobic coating layer and the dispersed particles enables the composition to achieve a "synchronous start-up and gentle release" reaction characteristic upon contact with moisture, solving the technical problems of uncontrollable reaction rates and uneven gas release in existing gas-generating materials.

[0034] This application does not impose any special limitations on the specific structure of the dispersed particles, nor does it impose any special limitations on the interaction between the dispersed structure and the gas-generating particles. It only needs to satisfy the requirement that the dispersed particles can prevent the agglomeration of adjacent gas-generating particles and can disperse the gas-generating particles in the hydrophobic medium. For example, the dispersed particles can be a porous structure, in which the hydrophobic coating of the gas-generating particles can be adsorbed into the pores, or the dispersed particles can be adsorbed into the hydrophobic coating through the porous structure, thereby anchoring the agglomeration of the gas-generating particles in the hydrophobic medium; as another example, the dispersed particles can be a two-dimensional sheet structure, stacked in parallel in the hydrophobic medium, forming multiple layers to block the agglomeration path of the gas-generating particles; as yet another example, the dispersed particles can be a microsphere structure, in which some can be rigidly embedded in the hydrophobic coating, or to separate adjacent gas-generating particles to prevent agglomeration.

[0035] In a preferred embodiment, the dispersed particles have a porous structure, with at least some gas-generating particles adsorbed onto the surface and interior of the dispersed particles through this porous structure. The porous structure readily generates adsorption forces. When gas-generating particles are adsorbed onto the surface or internal pores of the porous particles, they react with water to produce gas, releasing heat intensely. This heat is instantly conducted to the porous structure of the dispersed particles and then rapidly dispersed into the hydrophobic medium, preventing localized heat accumulation on the surface of the gas-generating particles. Compared to gas-generating particles merely being confined between porous particles, those "adsorbed" onto the surface of the porous structure have higher thermal conductivity. This structure allows the reaction system temperature to decrease and be slowly released during the reaction, preventing sudden temperature increases and improving the comfort of using the mask.

[0036] Secondly, the porous structure has more active sites on its surface, which are more likely to form hydrogen bonds, van der Waals forces, or electrostatic adsorption with the surface of the gas-generating particles. This enhances the forced dispersion of the gas-generating particles by the dispersing particles, making them less prone to migration and aggregation even under the agglomeration tendency of hydrophobic media, thus providing stronger dispersion stability. Furthermore, multiple gas-generating particles are adsorbed onto the surface or interior of the dispersing particles, allowing gas to be generated simultaneously in multiple areas, increasing the reaction area at multiple locations and improving the uniformity of gas generation in the mask.

[0037] Secondly, hydrophobic media typically have a strong barrier effect against water, resulting in slow water penetration. However, the pores of porous particles exhibit a capillary effect, actively adsorbing and storing moisture from the mask surface. When gas-generating particles are adsorbed inside the pores or at the pore openings, water molecules are drawn to their vicinity through capillary action. This increases the rate at which water molecules slowly pass through the hydrophobic medium, allowing them to react with the gas-generating particles simply by crossing the hydrophobic coating layer. Water quickly reaches the reaction site, but the hydrogen production reaction is still controlled by the hydrophobic coating layer, keeping the gas production rate within an ideal range and achieving a good match between gas production and water penetration rates.

[0038] This application does not impose any special limitations on the porous structure of the dispersant, as long as it meets the requirement of being porous. In some embodiments, the material of the dispersing particles includes at least one selected from magnesium oxide, aluminum oxide, silica, magnesium stearate, zeolite molecular sieve, kaolin, bentonite, diatomaceous earth, and ceramic powder.

[0039] Preferably, the mass ratio of hydrophobic medium to dispersed particles in the dispersant is between 3:1 and 10:1. The ratio of hydrophobic medium to dispersed particles in the dispersant of this application is a range that the applicant has verified through extensive experiments to achieve the best gas-generating synergistic effect. If the mass ratio is too low, it means that the relative content of hydrophobic medium is less and the proportion of dispersed particles is too high, resulting in incomplete or missing encapsulation of the gas-generating particles by the hydrophobic coating layer. This prevents the formation of a continuous and dense hydrophobic coating layer on the surface of each hydrogen-generating particle, further leading to a rapid reaction of the gas-generating particles to produce a large amount of gas with significant heat release when moisture enters, making both gas and temperature difficult to control. If the mass ratio is too high, it means that the content of hydrophobic medium is more, and the proportion of dispersed particles is too low, greatly weakening the dispersion effect. The gas-generating particles are more prone to agglomeration, and local agglomeration leads to excessively vigorous local reactions, resulting in localized heat release. Furthermore, the subsequent moisture ingress rate is slow, and the reaction efficiency is low.

[0040] In some embodiments, to enhance the encapsulation effect of the dispersant on the gas-generating particles, preferably, the dispersant further includes a second organic dispersion medium having hydroxyl and / or carboxyl groups. The second organic dispersion medium adsorbs and encapsulates the gas-generating particles on their surface through the hydroxyl or carboxyl groups. The encapsulation effect of the second organic dispersion medium is stronger, achieved through adsorption via chemical bonds, resulting in a more complete encapsulation of the gas-generating particle surface, reducing the likelihood of pore formation, and further improving the sustained-release effect.

[0041] Preferably, the mass ratio of the hydrophobic medium, the dispersing particles, and the second organic dispersing medium in the dispersant is between 3:1:0.5 and 10:1:0.01. Within this range, the dispersant and the gas-generating particles can achieve the best matching effect, that is, the reaction rate can be within a controllable range, while the gas release is more uniform and stable, and the temperature rise caused by heat dissipation is within a comfortable range.

[0042] In some embodiments, the material of the second organic dispersion medium includes at least one of cellulose derivatives, chitosan and polysaccharide derivatives, polymeric dispersants, natural adhesives and polyethylene glycol, and the material of the hydrophobic medium includes at least one of organosiloxane mixtures, camellia seed oil and squalane.

[0043] In one preferred embodiment, the gas-producing particles include multiple first particles and multiple second particles. The first particles are used to produce hydrogen, and the second particles are used to produce carbon dioxide. One of the inventive points of this application is the use of hydrogen and carbon dioxide gases for synergistic gas production. This dual-gas synergy has not been studied in related technologies. Through extensive experiments and theoretical derivations, the inventors of this application have discovered that, using the system structure of this application, the two gases can be simultaneously initiated and continuously produced upon contact with moisture. The simultaneously generated CO2 and H2 penetrate the skin together, forming a bidirectional absorption mechanism: On the one hand, H2, with its small molecular weight (2 g / mol) and rapid diffusion rate, quickly penetrates into the skin's microvessels, activating the nitric oxide (NO) synthesis pathway in endothelial cells, promoting capillary dilation, increasing local blood flow and tissue perfusion pressure, providing stronger impetus for CO2 transdermal penetration, and accelerating CO2 absorption; on the other hand, CO2 reduces the affinity of hemoglobin for oxygen through the Bohr effect, improving skin tissue metabolism and further dilating capillaries. Simultaneously, CO2 creates a mild gaseous atmosphere on the skin surface, slowing the escape of H2 towards the air, prolonging H2 residence time, and promoting more efficient penetration of H2 into the dermis and subcutaneous tissue. CO2 focuses on improving tissue oxygen supply and optimizing the metabolic environment through the Bohr effect, while H2 focuses on promoting circulation, increasing blood perfusion, and clearing harmful reactive oxygen species. Their simultaneous action produces a synergistic amplification effect, resulting in a much greater improvement in skin microcirculation than single-gas products, achieving the dual effects of "promoting circulation + anti-oxidation," a technical effect that single-gas products cannot achieve.

[0044] The following explains the innovative aspects of this application. First, the synergistic effect of the two gases discovered in this invention is not immediately obvious. This is because, generally, those skilled in the art consider H2 to be an "antioxidant small molecule" and are unaware that it can, as a blood flow promoter, conversely increase the penetration rate of CO2. Second, in traditional understanding, hydrogen production systems are considered alkaline, which conflicts with the pH of CO2 production systems (which are acidic), easily leading to mutual interference and system instability. Third, the reaction system of the two gases is more prone to violent local reactions and uneven exothermic reactions. Fourth, H2 is a small molecule gas that escapes rapidly, with a short residence time and difficult controlled release, making it unable to form a stable synergistic effect with other gases. CO2 is a medium-molecule gas that requires rapid release to have a circulation-promoting effect, which is difficult to match with the release characteristics of H2. The reaction kinetics of the two are vastly different, and simultaneous release can lead to mutual interference, system instability, and even skin irritation. Based on the above problems, those skilled in the art would not actively attempt to simultaneously combine CO2 and H2 in a gas production system, let alone imagine that the two could form a bidirectional absorption-promoting mechanism.

[0045] This invention utilizes a technique of coating the gas-generating particles with a hydrophobic medium to form a coating layer, and then using dispersing particles to disperse and block the coated gas-generating particles. This technique enables the gas-generating particles of the two gases to be well and stably integrated into a single film, ensuring that CO2 and H2 react synchronously. It avoids uncontrollable gas release timing caused by acid-base conflicts and differences in reaction kinetics in the reaction system, and can also uniformly disperse the overheating effect of local reactions.

[0046] In some embodiments, the material for producing hydrogen particles includes at least one of metal powder and / or metal hydrides, and the material for producing carbon dioxide particles includes at least one of sodium carbonate, calcium carbonate, potassium carbonate, magnesium carbonate, sodium bicarbonate, potassium bicarbonate, ammonium bicarbonate, and potassium bitartrate.

[0047] In other embodiments, the materials that produce carbon dioxide particles also include at least one of citric acid, tartaric acid, malic acid, lactic acid, fumaric acid, oxalic acid, sodium dihydrogen phosphate, sodium monohydrogen phosphate, sodium bisulfate, sodium bisulfite, gluconic acid, and 3-aminopropylphosphonic acid.

[0048] This application does not impose any special limitation on the component ratio of the composition. As a preferred embodiment, the components of the composition include, by mass parts: The first particle requires 8-15 portions; The second particle is 4-28 portions; 30-60 parts of hydrophobic medium; 2-22 parts of dispersed granules; The mass ratio of the first particle to the second particle is between 1:0.5 and 1:3. This ratio is not conventional; its core purpose is to ensure the stable operation of the dual-gas bidirectional absorption mechanism. When the CO2 content is too low, a sufficient CO2 atmosphere cannot be formed in a short time, failing to effectively promote H2 absorption. Furthermore, the H2 circulation-promoting effect lacks the synergistic amplification of CO2, significantly reducing CO2 penetration efficiency and preventing the bidirectional absorption mechanism from activating. When the CO2 content is too high, the exothermic reaction of CO2 production increases significantly, leading to higher local temperatures and reduced user comfort. The optimal ratio range creates a stable synergistic effect with an H2:CO2 volume ratio between 1:1 and 8:1. Within this range, H2 can fully exert its circulation-promoting effect, accelerating CO2 penetration, while CO2 can effectively promote H2 absorption, prolonging the duration of H2's action and achieving the optimal balance between efficacy and comfort. In some embodiments, the composition further includes a pH adjuster for adjusting the pH between the gas-generating particles and the hydrophobic medium.

[0049] As a second aspect of this application, a face mask is disclosed, such as Figure 2As shown, the mask 2 includes a permeable layer and a functional layer 21 stacked along its thickness direction. The functional layer comprises the composition described above. The mask prepared using the composition of this application features uniform and stable gas production at a controllable rate. The hydrophobic coating layer enables the stable coexistence of multiple gas-generating reaction systems, reduces pH interference, provides a stable environment for the synergistic release of multiple gases, and ensures gentle and more uniform release at various locations, avoiding localized heating and improving product safety.

[0050] As a preferred option, such as Figure 2 As shown, the permeation layer includes a rate control layer 20 and a barrier layer 22. A functional layer 21 is disposed between the rate control layer 20 and the barrier layer 22. The rate control layer 20 is used to adjust the permeation rate of the liquid into the functional layer, and the barrier layer 22 is used to block the gas generated by the functional layer 21 from escaping towards the barrier layer 22.

[0051] Preferably, the rate control layer comprises a regenerated cellulose nonwoven fabric bonded with hot melt adhesive, the thickness of the rate control layer is between 0.2 mm and 0.5 mm, and the basis weight of the rate control layer is 40 g / m². 2 Up to 55 g / m 2 Between them, the barrier layer includes a nonwoven fabric laminated with an aluminum film or an aluminized film, and the material of the nonwoven fabric includes at least one of cellulose fiber, resin and PET.

[0052] The core function of the rate control layer is to control the rate of water penetration and the rate of gas release, providing a guarantee for the bidirectional absorption of two gases. Among them, the regenerated cellulose fiber is hydrophilic, which can achieve slow adsorption and uniform conduction of water, while the PA hot melt adhesive has a certain degree of hydrophobicity, which can inhibit the rapid influx of water into the composite gas generation layer and avoid the instantaneous violent reaction of the gas generation components. By adjusting the layer thickness, basis weight and air resistance, the water penetration rate is precisely controlled (the thicker the layer and the greater the air resistance, the slower the water penetration), ensuring that water simultaneously wets the hydrogen production system and the CO2 production system, realizing the synchronous generation of two gases.

[0053] The barrier layer is a composite aluminum film substrate layer. Aluminum has excellent barrier properties (water-proof, gas-proof, and oxygen-proof). During use, the aluminum film prevents CO2 and H2 generated by the composite gas-generating layer from escaping outwards, forcing the gas to penetrate only through the rate-regulating layer towards the skin, maximizing the transdermal utilization rate of the gas and avoiding gas waste. The addition of cellulose fibers and resin improves the flexibility and adhesion of the aluminum film substrate layer, while ensuring stable hot-melt bonding of the PA hot melt adhesive in the composite aluminum film substrate layer and the rate-regulating layer, forming a complete sheet product and ensuring ease of use.

[0054] This application does not impose any special limitations on the other structures of the mask. It is worth noting that, in order to achieve a better gas release effect, the mask of this application can be a dry mask, which can be used in conjunction with any water-based wet mask. Preferably, the mask also includes a water-based wet mask layered along the thickness direction, which is disposed on the side of the rate control layer away from the functional layer and adhered to the rate control layer.

[0055] The following provides a specific method of using the facial mask described in this application and an explanation of its mechanism: Step 1, Contact Triggering Stage: After applying the water-based wet membrane to the skin surface, cover the outside of the wet membrane with the dry membrane cloth of this invention. At this time, the water in the wet membrane acts as a triggering medium and first contacts the rate control layer (regenerated cellulose fiber + PA hot melt adhesive) of the dry membrane cloth. Under the permeation effect of the rate control layer, the water slowly and evenly permeates into the entire area of ​​the composite gas generation layer (rather than rapidly rushing in). No gas is generated in this stage; only the directional and uniform conduction of water is completed, laying the foundation for the synchronous generation of two gases.

[0056] Step 2, Simultaneous Gas Production Stage: Moisture permeating into the composite gas-producing layer simultaneously comes into contact with both the carbon dioxide production system (carbon dioxide production material + solid acid) and the hydrogen production system (hydrogen production material). The two gases react simultaneously and continuously upon contact with the moisture. The core reaction principle is as follows: ① CO2 production reaction: Solid acid (such as citric acid) and carbon dioxide production material (such as sodium bicarbonate) undergo a rapid metathesis reaction under the catalysis of water to produce CO2; ② H2 production reaction: Hydrogen production material (such as magnesium hydride, aluminum powder, etc.) reacts directly with water to produce hydrogen gas. The synergistic effect of the rate control layer and the composite dispersion system ensures a gentle and stable release rate of both gases, avoiding violent reactions or gas escape.

[0057] Step 3: The generated hydrogen and carbon dioxide achieve a two-way synergistic absorption stage; Step 4, Reaction Termination Stage: When the moisture in the wet film is completely consumed, or the hydrogen and carbon dioxide producing materials in the composite gas producing layer have finished reacting, the release of the two gases gradually stops, the dry film cloth loses its gas producing ability, and can be removed. There is no residue and no irritation throughout the process.

[0058] The following discloses a specific method for preparing the facial mask according to the present invention, which specifically includes: S1. Provide initial preparation raw materials: hydrogen-producing material (10 parts magnesium hydride), carbon dioxide-producing material (6 parts sodium bicarbonate), solid acid (24 parts citric acid), dispersant (40 parts organosiloxane mixture + 20 parts ceramic powder + 0.5 parts cellulose, ceramic powder particle size 80 mesh).

[0059] S2. Preparation of the composite gas-producing layer: First, mix the hydrogen-producing material with 1 part cellulose, then ball-mill and cure it with 10 parts ceramic powder. Next, ball-mill and cure the solid acid and carbon dioxide-producing material. After treatment, add the organosiloxane mixture, mix evenly, then add the cured hydrogen-producing material / ceramic powder / cellulose mixture, continue stirring evenly, and then mix evenly with other components to obtain the mixture.

[0060] S3. The aluminum film substrate layer (80% cellulose fiber, 15% polyurethane, 4% electroplated aluminum, 1% solvent orange) and the rate control layer (40% PA hot melt adhesive, 60% regenerated cellulose fiber, thickness 0.3mm, air resistance 8Pa, basis weight 48g / m³) are combined. 2 The mixture is rolled onto the pad printing equipment, added to the material tank, and the equipment is turned on. The mixture is then processed through pad printing, hot pressing at 210-280℃, die cutting and bagging to prepare a double-gas dry film sample.

[0061] The present invention will be further described below with reference to the embodiments.

[0062] Example Example 1 This embodiment provides a mask fabric, specifically including: preparation of a composite gas-generating layer: hydrogen-generating material (10 parts magnesium hydride), carbon dioxide-generating material (6 parts sodium bicarbonate), solid acid (24 parts citric acid), and dispersant (40 parts organosiloxane mixture + 20 parts ceramic powder, ceramic powder particle size 80 mesh).

[0063] First, the hydrogen-producing material and ceramic powder are ball-milled and cured. Then, they are mixed evenly with other components to obtain a mixture.

[0064] The aluminum film substrate layer (80% cellulose fiber, 15% polyurethane, 4% electroplated aluminum, 1% solvent orange) and the rate control layer (40% PA hot melt adhesive, 60% regenerated cellulose fiber, thickness 0.3 mm, air resistance 8 Pa, basis weight 48 g / m²) are combined. 2 The mixture is rolled onto the pad printing equipment, the mixed material is added to the material tank, the equipment is turned on, and a double-gas dry film sample is prepared through pad printing, hot pressing, die cutting and bagging processes.

[0065] Example 2 This embodiment provides a mask sheet that is the same as that in Embodiment 1, except that the carbon dioxide producing material (sodium bicarbonate) is 12 parts, the ceramic powder is 14 parts, the other components and amounts remain unchanged, and the parameters of the rate control layer are the same as those in Embodiment 1.

[0066] Example 3 This embodiment provides a mask sheet that is the same as that in Embodiment 1, except that the carbon dioxide producing material (sodium bicarbonate) is 18 parts, the ceramic powder is 8 parts, the other components and amounts remain unchanged, and the parameters of the rate control layer are the same as those in Embodiment 1. Example 4 This embodiment provides a mask sheet that is the same as that in Embodiment 1, except that the carbon dioxide producing material (sodium bicarbonate) is 24 parts, the ceramic powder is 2 parts, the other components and amounts remain unchanged, and the parameters of the rate control layer are the same as those in Embodiment 1.

[0067] Example 5 This embodiment provides a mask fabric identical to that of Embodiment 2, except that the rate control layer thickness is 0.30 mm, the air resistance is 18 Pa, and the basis weight is 53 g / m². 2 The remaining ingredients and dosages remain unchanged.

[0068] Example 6 This embodiment provides a mask sheet identical to that of Embodiment 2, except that the ceramic powder has a mesh size of 300. All other ingredients and amounts remain unchanged.

[0069] Comparative Example Comparative Example 1 This comparative example provides a mask fabric identical to that of Example 1, except that the composite gas-generating layer removes the carbon dioxide-generating material (sodium bicarbonate), while the remaining components and amounts remain unchanged, and the parameters of the rate control layer are consistent with those of Example 1.

[0070] Comparative Example 2 This comparative example provides a mask fabric identical to that of Example 1, except that the hydrogen-producing material is removed from the composite gas-generating layer, while the remaining components and amounts remain unchanged, and the parameters of the rate control layer are consistent with those of Example 1.

[0071] Test case Performance tests were conducted on the embodiments and comparative examples. The test items and test methods are as follows. 1. Hydrogen transdermal absorption test A self-made receiving cell was used, with fresh piglet skin (area 28.26 cm²) as the transdermal model. The receiving cell was evacuated and then injected with nitrogen. The sample was placed under the piglet skin in the reaction cell, which was immediately sealed after adding 30 ml of water. Samples were taken at 15 min and 30 min, and the concentrations of hydrogen and carbon dioxide in the receiving cell were detected by gas chromatography. The cumulative transdermal volume was calculated. Figure 3 As shown, Figure 3 The horizontal axis represents the test time in minutes (min), and the vertical axis represents the transdermal absorption of hydrogen in micromoles (μmol).

[0072] 2. Maximum temperature and heating duration test ① Preparation of standard sample solution for facial masks Weigh out 92.07 mL of deionized water, 5 g of glycerol, 1.5 g of butylene glycol, 0.5 g of p-hydroxyacetophenone, 0.5 g of 1,2-hexanediol, 0.14 g of carbomer, 0.1 g of hydroxyethyl cellulose, 0.05 g of hyaluronic acid, and 0.14 g of arginine in sequence and add them to a 200 mL beaker. Stir thoroughly and seal for later use. ② Determination of the highest temperature and duration of temperature during use Adjust the test environment to 20℃~26℃. Turn on the constant temperature water bath, add water to the stainless steel plate tank (but not above it), and set the temperature to 37.5℃. Connect the sensor on the temperature display to the corresponding position and secure it with aluminum foil tape. Then turn on the temperature display and wait for the three temperature points on the display to reach a stable constant temperature before starting to record.

[0073] Take 30 mL of the mask standard sample into a 100 mL beaker, put a disposable mask sheet into it to fully absorb the mask standard sample, and then place the mask soaked in the mask standard sample into a stainless steel plate tank. Take a complete sample, attach it tightly to the mask soaked in the mask standard sample and remove air bubbles, and record continuously for 30 min.

[0074] Read the highest temperature during use from the sensor temperature curve and record it as Tmax. The duration of temperatures above 37°C on the sensor temperature curve was recorded as ΔT. The results of these two temperature data sets are shown in Table 1. like Figure 3 As shown, compared with Comparative Example 1, the transdermal absorption of hydrogen in Example 1 was similar within 15 minutes, but the difference gradually widened with the extension of time. Overall, the transdermal hydrogen absorption of Example 4 was greater than that of Example 2. The transdermal hydrogen absorption of Examples 2 and 3 was similar and both greater than that of Example 1. The transdermal hydrogen absorption of Example 1 was also greater than that of Comparative Example 1. This indicates that the transdermal hydrogen absorption increases with the increase of carbon dioxide-producing materials. This may be related to the fact that the density of carbon dioxide produced in the examples is greater than that of hydrogen, which can form a "CO2 gas coating layer" on the skin surface, like laying a "CO2 gas film" on the skin surface, covering the less dense and easily upward-dispersing hydrogen gas, thereby indirectly increasing the transdermal hydrogen absorption by prolonging the residence time of hydrogen on the skin surface. It may also be due to the surface coating layer formed by carbon dioxide, which can slightly change the local microenvironment of the skin surface, such as dilating pores and improving microcirculation, thereby improving the hydrogen penetration efficiency.

[0075] like Figure 4 As shown, Figure 4The horizontal axis represents the test time in minutes (min), and the vertical axis represents the transdermal absorption of carbon dioxide in micromoles (μmol). The transdermal carbon dioxide absorption of the mask prepared using the composition of this application in Example 2 is greater than that of the comparative example, proving that carbon dioxide gas was effectively generated in this example, and that the transdermal absorption gradually increases with time, indicating that the mask structure of this application has a sufficient sustained-release effect.

[0076] Table 1. Temperature and duration test data for different embodiments

[0077] The highest temperature in Example 4 was significantly higher than that in Examples 1-3 at 15 min. This may be related to the excessively rapid reaction rate of magnesium hydride.

[0078] Compared to Example 2, Examples 5 and 6 show a decrease in the maximum temperature and a lengthening time of heating, indicating that the basis weight of the rate control layer, the barrier rate, and the mesh size of the inorganic dispersion material have an impact on the maximum reaction temperature and the heating time.

[0079] The above are merely specific embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Those skilled in the art should understand that the present invention includes, but is not limited to, the contents described in the accompanying drawings and the specific embodiments above. Any modifications that do not depart from the functional and structural principles of the present invention will be included within the scope of the claims.

Claims

1. A composition for preparing a functional layer of a facial mask, characterized in that, The composition includes a plurality of gas-generating particles and a dispersant. The dispersant includes a hydrophobic medium and a plurality of dispersing particles. The hydrophobic medium coats the surface of the plurality of gas-generating particles to form a hydrophobic coating layer. The plurality of dispersing particles are disposed in the hydrophobic coating layer and located between the plurality of gas-generating particles to separate the plurality of gas-generating particles. The gas-generating particles are dispersed in the hydrophobic medium by the dispersing particles. The gas-producing particles include a plurality of first particles and a plurality of second particles. The first particles are used to generate hydrogen, and the second particles are used to generate carbon dioxide. The material of the first particles includes metal powder and / or metal hydrides, and the material of the second particles includes solid particles that release carbon dioxide upon contact with acid and / or water. The composition also includes solid acid. The dispersed particles have a porous structure, and at least some of the gas-generating particles are adsorbed on the surface and inside of the dispersed particles through the porous structure. The hydrophobic medium includes at least one of an organosiloxane mixture, camellia seed oil, and squalane; the components of the composition, in parts by mass, include: The first particle requires 8-15 portions; The second particle is 4-28 portions; 30-60 parts of hydrophobic medium; Dispersible particles: 2-22 parts.

2. The composition according to claim 1, characterized in that, The material of the dispersed particles includes at least one of magnesium oxide, aluminum oxide, silicon dioxide, magnesium stearate, zeolite molecular sieve, kaolin, bentonite, diatomaceous earth, and ceramic powder.

3. The composition according to claim 1, characterized in that, In the dispersant, the mass ratio of the hydrophobic medium to the dispersed particles is between 3:1 and 10:

1.

4. The composition according to claim 1, characterized in that, The dispersant further includes a second organic dispersion medium having hydroxyl and / or carboxyl groups, which adsorbs the gas-generating particles and coats the surface of the gas-generating particles through the hydroxyl or carboxyl groups.

5. The composition according to claim 4, characterized in that, In the dispersant, the mass ratio of the hydrophobic medium, the dispersing particles, and the second organic dispersing medium is between 3:1:0.5 and 10:1:0.

01.

6. The composition according to claim 1, characterized in that, The mass ratio of the first particle to the second particle is between 1:0.5 and 1:

3.

7. The composition according to any one of claims 1 to 6, characterized in that, The composition also includes a pH adjuster for adjusting the pH between the gas-generating particles and the hydrophobic medium.

8. A facial mask, characterized in that, The face mask includes a permeable layer and a functional layer stacked along the thickness direction, wherein the components of the functional layer include the composition according to any one of claims 1 to 7.

9. The facial mask according to claim 8, characterized in that, The permeation layer includes a rate control layer and a barrier layer. The functional layer is disposed between the rate control layer and the barrier layer. The rate control layer is used to adjust the permeation rate of liquid into the functional layer, and the barrier layer is used to prevent the gas generated by the functional layer from escaping towards the barrier layer.

10. The facial mask according to claim 9, characterized in that, The rate control layer comprises a regenerated cellulose nonwoven fabric bonded with hot melt adhesive, the thickness of the rate control layer is between 0.2 mm and 0.5 mm, and the basis weight of the rate control layer is 40 g / m². 2 Up to 55 g / m 2 Between, the barrier layer comprises a nonwoven fabric laminated with an aluminum film or an aluminized film, wherein the material of the nonwoven fabric includes at least one of cellulose fiber, resin and PET.

11. The facial mask according to any one of claims 9 or 10, characterized in that, The mask also includes a water-based wet film stacked along the thickness direction, the water-based wet film being disposed on the side of the rate control layer away from the functional layer and being adhered to the rate control layer.

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