Novel ice compress mask

Abstract

The invention relates to the field of medical nursing materials, in particular to a novel ice compress mask which comprises a skin-friendly layer, a mask body, a mask cover and a mask cover. The skin-friendly layer is arranged on the innermost side; the super absorbent resin composite layer is arranged on the outer side of the skin-friendly layer; the phase change material cooling layer is arranged on the outer side of the super absorbent resin composite layer; the heat conduction enhancement layer is arranged on the outer side of the phase change material cooling layer; the heat insulation protection layer is arranged on the outermost side; the adjustable elastic head band is used for fixing the ice compress mask; according to the ice compress mask, ventilation openings are formed in the positions, at the eyes, the nose and the mouth, of the ice compress mask respectively, a supporting ring of a micropore structure is arranged on the periphery of each ventilation opening, the supporting rings are filled with antibacterial moisture absorption materials, and the phase change material cooling layer and the super absorbent resin composite layer are combined, so that the continuous cooling effect as long as 2-4 hours is achieved; the ice compress mask is 2-3 times that of a traditional ice compress mask.

Description

Technical Field

[0001] The invention relates to the field of medical care products, in particular to a novel ice compress mask. Background Art

[0002] Existing ice masks mainly use gel ice layers or simple ice pack structures to achieve cooling effects. These structures often have problems such as short cooling duration, poor cooling uniformity, and poor sealing performance. At the same time, the existing ice masks have a single structure and are difficult to meet the needs of different usage scenarios, such as postoperative cold compresses, cooling after exercise, or use in warm environments. Summary of the invention

[0003] The invention provides a novel ice compress mask to solve the technical problems existing in the prior art.

[0004] The object of the present invention is to provide a novel ice compress mask, the ice compress mask comprising:

[0005] The skin-friendly layer is arranged on the innermost side;

[0006] A highly water-absorbent resin composite layer is disposed outside the skin-friendly layer;

[0007] A phase change material cooling layer is arranged outside the super absorbent resin composite layer;

[0008] A heat conduction enhancement layer is arranged outside the phase change material cooling layer;

[0009] A heat-insulating protective layer, disposed on the outermost side; and

[0010] An adjustable elastic headband for fixing the ice mask;

[0011] The ice compress mask is provided with ventilation openings at the eye, nose and mouth positions respectively, and a support ring with a microporous structure is provided around each of the ventilation openings, and the support ring is filled with antibacterial and moisture-absorbing material.

[0012] Preferably, the skin-friendly layer consists of the following components:

[0013] 40-60 parts by weight of microfiber polyester;

[0014] Lycra elastic fiber 5-15 parts by weight;

[0015] 20-40 parts by weight of polylactic acid fiber;

[0016] 1-5 parts by weight of chitosan modifier; and

[0017] Menthol 0.1-0.5 parts by weight.

[0018] Preferably, the super absorbent resin composite layer is composed of the following components:

[0019] 40-60 parts by weight of acrylic acid-maleic acid copolymer crosslinker;

[0020] Sodium acrylate 15-25 parts by weight;

[0021] 10-20 parts by weight of microcrystalline cellulose;

[0022] Glycerol 5-10 parts by weight;

[0023] Poloxamer 4071-5 parts by weight; and

[0024] Sodium chloride 0.5-2 parts by weight;

[0025] Wherein, the acrylic acid-maleic acid copolymer crosslinked body is prepared by the following steps:

[0026] Add 400-600 parts by weight of deionized water into a four-necked reaction flask, stir and heat to 60-70°C under nitrogen protection;

[0027] Add 70-80 parts by weight of acrylic acid monomer and 20-30 parts by weight of maleic acid in sequence;

[0028] After stirring evenly, add 0.5-1.5 parts by weight of potassium persulfate as an initiator;

[0029] Control the reaction temperature at 65-75°C and the reaction time at 3-5 hours;

[0030] When the reaction is carried out for 2 hours, 1-3 parts by weight of N,N'-methylenebisacrylamide is added as a cross-linking agent;

[0031] After the reaction was completed, the mixture was cooled to room temperature and washed with ethanol three times;

[0032] Vacuum drying at 40-50°C for 12-24 hours;

[0033] The product is crushed and sieved to obtain a cross-linked copolymer with a particle size of 100-200 μm.

[0034] Preferably, the phase change material cooling layer consists of the following components:

[0035] 50-70 parts by weight of a eutectic mixture of n-octadecane and n-hexadecane, wherein the mass ratio of n-octadecane to n-hexadecane is 2:1 to 4:1;

[0036] 20-30 parts by weight of epoxy modified polyacrylate microcapsule wall material;

[0037] 5-15 parts by weight of silica aerogel;

[0038] 3-8 parts by weight of aluminum oxide powder; and

[0039] 1-3 parts by weight of dimethyl silicone oil;

[0040] Wherein, the epoxy-modified polyacrylate microcapsule wall material is prepared by the following steps:

[0041] Add 200-300 parts by weight of deionized water into a four-necked flask, add 5-10 parts by weight of polyvinyl alcohol while stirring, raise the temperature to 80-85°C and stir to dissolve;

[0042] Lower the temperature to 60-65° C., add 40-50 parts by weight of methyl acrylate, 30-40 parts by weight of methyl methacrylate, 10-15 parts by weight of butyl acrylate, and 5-10 parts by weight of ethylene oxide-propylene oxide copolymer;

[0043] Under high-speed stirring at 1000-1500 rpm, 0.5-1.0 parts by weight of an aqueous solution of ammonium persulfate is added dropwise;

[0044] Control the reaction temperature at 60-70°C and react for 4-6 hours;

[0045] After cooling to room temperature, post-treat with 2-5 parts by weight of epoxy resin and stir for 2-3 hours;

[0046] Filter and dry under vacuum at 45-55°C for 12-24 hours.

[0047] Preferably, the phase change material microcapsules in the phase change material cooling layer are prepared by the following steps:

[0048] Mix 55-65 parts by weight of n-octadecane and 15-25 parts by weight of n-hexadecane at 60-70° C. to form a eutectic mixture;

[0049] Dissolve 25-35 parts by weight of epoxy-modified polyacrylate microcapsule wall material in 200-300 parts by weight of dichloromethane;

[0050] Slowly adding the eutectic mixture to the epoxy-modified polyacrylate microcapsule wall material solution at 5000-8000 rpm in a homogenizer to form an O / W emulsion, and homogenizing for 10-15 minutes;

[0051] The emulsion was transferred to a reaction kettle with mechanical stirring, stirred at 35-45°C and the solvent was slowly evaporated for 8-12 hours;

[0052] Filter and wash with deionized water 3-5 times;

[0053] The phase change material microcapsules with an average particle size of 10-30 μm are obtained by vacuum drying at 40-50° C. for 24-48 hours.

[0054] Preferably, the heat conduction enhancement layer consists of the following components:

[0055] Polyvinyl alcohol 30-50 parts by weight;

[0056] 1-5 parts by weight of graphene;

[0057] 0.1-0.5 parts by weight of nano silver particles;

[0058] Gelatin 5-15 parts by weight;

[0059] 10-20 parts by weight of glycerol; and

[0060] The balance of deionized water is 100 parts by weight.

[0061] Preferably, the thermal insulation protective layer consists of the following components:

[0062] 50-70 parts by weight of polyurethane foam material;

[0063] 10-20 parts by weight of fumed silica;

[0064] Montmorillonite 5-15 parts by weight;

[0065] 2-8 parts by weight of reflective aluminum foil; and

[0066] Polyvinyl butyral 5-10 parts by weight.

[0067] Preferably, the ice mask is prepared by the following steps:

[0068] The skin-friendly layer is prepared by mixing microfiber polyester, Lycra elastic fiber and polylactic acid fiber according to a ratio, forming a preliminary fiber web by air-laid process, and then spraying a solution of chitosan modifier and menthol on the surface of the fiber web, and drying at 50-60° C. for 30-40 minutes;

[0069] The highly absorbent resin composite layer is prepared by mixing a crosslinked acrylic acid-maleic acid copolymer, sodium acrylate and microcrystalline cellulose, adding an aqueous solution containing glycerol and poloxamer 407 to form a paste, and then uniformly coating the paste on a supporting non-woven fabric by a coating process, and drying the paste at 60-70° C. for 2-3 hours;

[0070] Prepare the phase change material cooling layer: mix the phase change material microcapsules with silica aerogel and alumina powder, add dimethyl silicone oil to adjust the viscosity, and then use hot pressing method to press into a sheet with a thickness of 1.5-2.5 mm at 110-130° C. and 1.5-2.5 MPa;

[0071] Preparation of the thermal conductivity enhancement layer: dissolving polyvinyl alcohol in deionized water at 80-90° C., cooling to 40-50° C., sequentially adding graphene, nanosilver particles, gelatin and glycerol, stirring evenly, forming a film by a casting method, and drying at 40-50° C. for 4-6 hours;

[0072] The heat-insulating protective layer is prepared by mixing a polyurethane prepolymer with fumed silica and montmorillonite, adding a foaming agent and a catalyst, carrying out a foaming reaction in a mold, and then compounding a reflective aluminum foil and a polyvinyl butyral adhesive on the surface of the foaming material;

[0073] The above layers are stacked in sequence, and sealed at the periphery using an ultrasonic heat-sealing process. At the same time, openings are reserved at the eyes, nose and mouth positions and support rings filled with antibacterial and hygroscopic materials are installed.

[0074] Preferably, the frequency of the ultrasonic heat bonding process is 20-30 kHz and the pressure is 0.2-0.4 MPa.

[0075] Preferably, the support ring of the microporous structure is made of a thermoplastic elastomer material, and the antibacterial and hygroscopic material comprises a modified cellulose and a quaternary ammonium salt complex.

[0076] Beneficial effects:

[0077] 1. The combination of the phase change material cooling layer and the super absorbent resin composite layer achieves a continuous cooling effect of up to 2-4 hours, which is 2-3 times that of traditional ice masks;

[0078] 2. The heat conduction enhancement layer improves the transfer efficiency of cold air and makes the temperature distribution more uniform;

[0079] 3. The highly absorbent resin composite layer can effectively absorb condensed water, solving the problem of easy dripping of traditional ice masks;

[0080] 4. The opening structure of eyes, nose and mouth improves the user's comfort;

[0081] 5. The menthol ingredient added to the skin-friendly layer can provide an extra cooling feeling;

[0082] 6. The thermal insulation layer effectively prevents the intrusion of ambient heat and prolongs the duration of the cooling effect;

[0083] 7. The addition of graphene and nanosilver gives the mask good antibacterial properties;

[0084] 8. It is particularly effective in treating facial edema. After the first day of treatment, the degree of edema was reduced by an average of 45.3%, and by the end of the third day, the edema was almost completely gone (an average reduction of 85.7%). In terms of analgesic effect, pain relief can be clearly felt within 5 minutes after the start of cold compress, and the relief effect can last until the next cold compress.

[0085] The present invention breaks through the limitations of existing ice mask technology through multi-layer structure design and the application of new materials, and has better use effect and wider application scenarios. DETAILED DESCRIPTION

[0086] The technical scheme of the present invention will be clearly and completely described below in conjunction with specific embodiments. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present invention. In the following embodiments, unless otherwise specified, the reagents and materials used can be obtained through commercial channels, and the present embodiments are all completed under laboratory conditions.

[0087] Example 1

[0088] In this embodiment, a new type of ice mask is provided, which includes a skin-friendly layer, a highly absorbent resin composite layer, a phase change material cooling layer, a heat conduction enhancement layer, a heat insulation protection layer, and an adjustable elastic headband. The ice mask is provided with ventilation openings at the eye, nose, and mouth positions, respectively, and each ventilation opening is surrounded by a support ring with a microporous structure, and the support ring is filled with antibacterial and moisture-absorbing material.

[0089] The skin-friendly layer is arranged on the innermost side and is in direct contact with the user's skin. It is composed of the following components: 40 parts by weight of microfiber polyester, 5 parts by weight of Lycra elastic fiber, 20 parts by weight of polylactic acid fiber, 1 part by weight of chitosan modifier and 0.1 parts by weight of menthol. The thickness of the skin-friendly layer is 0.5 mm, the surface density is 120 g / m2, and the air permeability is 80 mm / s. Preferably, the skin-friendly layer uses microfiber polyester as the main material, which not only has good softness and comfort, but also provides appropriate support to prevent the mask from deforming during use. At the same time, the added menthol can provide an additional cool feeling, significantly improving the user's comfort.

[0090] The super absorbent resin composite layer is arranged on the outside of the skin-friendly layer, and is composed of the following components: 40 parts by weight of acrylic acid-maleic acid copolymer crosslinked body, 15 parts by weight of sodium acrylate, 10 parts by weight of microcrystalline cellulose, 5 parts by weight of glycerol, 4071 parts by weight of poloxamer, and 0.5 parts by weight of sodium chloride. The water absorption rate of this layer is 500 times its own weight, and the water absorption rate is 30 g / min. The main function of the super absorbent resin composite layer is to absorb condensed water to prevent water droplets from dripping onto the user's face, while providing a better humidity regulation effect so that the mask will not be too dry when in contact with the skin.

[0091] The acrylic acid-maleic acid copolymer crosslinked body is prepared by the following steps:

[0092] (1) Add 400 parts by weight of deionized water into a four-necked reaction flask, stir and heat to 60° C. under nitrogen protection;

[0093] (2) adding 70 parts by weight of acrylic acid monomer and 20 parts by weight of maleic acid in sequence;

[0094] (3) After stirring evenly, 0.5 parts by weight of potassium persulfate was added as an initiator;

[0095] (4) controlling the reaction temperature at 65°C and the reaction time at 3 hours;

[0096] (5) When the reaction is carried out for 2 hours, 1 part by weight of N,N'-methylenebisacrylamide is added as a cross-linking agent;

[0097] (6) After the reaction was completed, the mixture was cooled to room temperature and washed with ethanol three times;

[0098] (7) vacuum drying at 40°C for 12 hours;

[0099] (8) The product was crushed and sieved to obtain a cross-linked copolymer with a particle size of 100 μm.

[0100] In this cross-linked copolymer, acrylic acid provides a large number of hydrophilic groups, while the introduction of maleic acid enhances the cross-linking degree and mechanical strength of the copolymer, so that the super absorbent resin not only has super high water absorption capacity, but also maintains morphological stability and will not lose its structure after water absorption and swelling.

[0101] The phase change material cooling layer is arranged on the outside of the super absorbent resin composite layer, and is composed of the following components: 50 parts by weight of the eutectic mixture of n-octadecane and n-hexadecane (the mass ratio of n-octadecane to n-hexadecane is 2:1), 20 parts by weight of epoxy modified polyacrylate microcapsule wall material, 5 parts by weight of silica aerogel, 3 parts by weight of alumina powder and 1 part by weight of dimethyl silicone oil. The phase change temperature of this layer is 8°C, the latent heat of phase change is 180 joules / gram, and the thermal conductivity is 0.3 watts / (meter·K). The phase change material cooling layer is the core part of the entire ice mask, which absorbs heat through the latent heat of phase change to achieve a continuous and stable cooling effect. The eutectic system formed by n-octadecane and n-hexadecane can provide a lower phase change temperature, which is suitable for the needs of facial cold compresses.

[0102] The epoxy-modified polyacrylate microcapsule wall material is prepared by the following steps:

[0103] (1) Add 200 parts by weight of deionized water into a four-necked flask, add 5 parts by weight of polyvinyl alcohol while stirring, and heat to 80° C. and stir to dissolve;

[0104] (2) lowering the temperature to 60° C., adding 40 parts by weight of methyl acrylate, 30 parts by weight of methyl methacrylate, 10 parts by weight of butyl acrylate, and 5 parts by weight of ethylene oxide-propylene oxide copolymer;

[0105] (3) adding dropwise 0.5 parts by weight of an aqueous solution of ammonium persulfate under high-speed stirring at 1000 rpm;

[0106] (4) Control the reaction temperature at 60°C and react for 4 hours;

[0107] (5) After cooling to room temperature, post-treating with 2 parts by weight of epoxy resin was performed and stirring was performed for 2 hours;

[0108] (6) Filter and dry under vacuum at 45°C for 12 hours.

[0109] The phase change material microcapsules are prepared by the following steps:

[0110] (1) 55 parts by weight of n-octadecane and 15 parts by weight of n-hexadecane were uniformly mixed at 60° C. to form a eutectic mixture;

[0111] (2) dissolving 25 parts by weight of epoxy-modified polyacrylate microcapsule wall material in 200 parts by weight of dichloromethane;

[0112] (3) slowly adding the eutectic mixture into the epoxy-modified polyacrylate microcapsule wall material solution at 5000 rpm in a homogenizer to form an O / W emulsion, and homogenizing for 10 minutes;

[0113] (4) transferring the emulsion to a reaction kettle with mechanical stirring, stirring and slowly evaporating the solvent at 35° C. for 8 hours;

[0114] (5) Filter and wash with deionized water three times;

[0115] (6) Vacuum drying at 40°C for 24 hours to obtain phase change material microcapsules with an average particle size of 10 μm.

[0116] Microencapsulated phase change materials can not only avoid leakage problems when the phase change materials are in liquid state, but also increase the contact area between the phase change materials and the outside world, thus improving the heat transfer efficiency. The epoxy-modified microcapsule wall material has excellent mechanical strength and flexibility, and can withstand the deformation and pressure of the mask during use, and is not easy to break.

[0117] The thermal conductivity enhancement layer is arranged on the outside of the phase change material cooling layer, and is composed of the following components: 30 parts by weight of polyvinyl alcohol, 1 part by weight of graphene, 0.1 parts by weight of nanosilver particles, 5 parts by weight of gelatin, 10 parts by weight of glycerol, and 100 parts by weight of deionized water. The thermal conductivity of this layer is 0.6 W / (m·K) and the antibacterial rate is 99%. The main function of the thermal conductivity enhancement layer is to promote heat transfer between the phase change material and the face and improve the cooling efficiency. At the same time, the addition of nanosilver gives this layer excellent antibacterial properties, preventing bacteria from breeding in a humid environment.

[0118] The heat-insulating protective layer is arranged on the outermost side and is composed of the following components: 50 parts by weight of polyurethane foam material, 10 parts by weight of fumed silica, 5 parts by weight of montmorillonite, 2 parts by weight of reflective aluminum foil and 5 parts by weight of polyvinyl butyral. The thermal conductivity of this layer is 0.03 W / (m·K) and the density is 20 kg / m3. The heat-insulating protective layer is a barrier to prevent the intrusion of external heat and can effectively prolong the duration of the cooling effect. The addition of reflective aluminum foil can reflect the radiant heat in the environment and further enhance the heat-insulating effect.

[0119] The preparation method of the ice compress mask comprises the following steps:

[0120] (1) preparing the skin-friendly layer: mixing microfiber polyester, Lycra elastic fiber and polylactic acid fiber according to a ratio, forming a preliminary fiber web by air-laying process, and then spraying a solution of chitosan modifier and menthol on the surface of the fiber web, and drying at 50° C. for 30 minutes;

[0121] (2) preparing the super absorbent resin composite layer: mixing a crosslinked acrylic acid-maleic acid copolymer, sodium acrylate and microcrystalline cellulose, adding an aqueous solution containing glycerol and poloxamer 407 to form a paste, and then uniformly coating the paste on a supporting non-woven fabric by a coating process, and drying the paste at 60° C. for 2 hours;

[0122] (3) preparing the phase change material cooling layer: mixing the phase change material microcapsules with silica aerogel and alumina powder, adding dimethyl silicone oil to adjust the viscosity, and then pressing into a sheet with a thickness of 1.5 mm at 110° C. and 1.5 MPa by hot pressing;

[0123] (4) preparing the thermal conductivity enhancement layer: dissolving polyvinyl alcohol in deionized water at 80° C., cooling to 40° C., adding graphene, nanosilver particles, gelatin and glycerol in sequence, stirring evenly, forming a film by a casting method, and drying at 40° C. for 4 hours;

[0124] (5) preparing the heat-insulating protective layer: mixing a polyurethane prepolymer with fumed silica and montmorillonite, adding a foaming agent and a catalyst, carrying out a foaming reaction in a mold, and then laminating a reflective aluminum foil and a polyvinyl butyral adhesive on the surface of the foaming material;

[0125] (6) The above layers are stacked in order and sealed at the periphery using an ultrasonic heat-sealing process (frequency 20 kHz, pressure 0.2 MPa). At the same time, openings are reserved at the eyes, nose and mouth and support rings filled with antibacterial and hygroscopic materials are installed.

[0126] In this embodiment, the ice mask has the following beneficial effects: continuous cooling time reaches 2 hours, temperature distribution uniformity is ±1.5°C, there is no obvious condensation water dripping phenomenon, the antibacterial rate reaches 99%, and the user wearing comfort score (out of 10 points) is 8.5 points.

[0127] Example 2

[0128] In this embodiment, another new type of ice mask is provided, and the structure of each layer is the same as that of Example 1, but the component ratio and process parameters are adjusted.

[0129] The skin-friendly layer is composed of the following components: 50 parts by weight of ultrafine fiber polyester, 10 parts by weight of Lycra elastic fiber, 30 parts by weight of polylactic acid fiber, 3 parts by weight of chitosan modifier and 0.3 parts by weight of menthol. The skin-friendly layer has a thickness of 1.0 mm, a surface density of 150 g / m2 and an air permeability of 120 mm / s.

[0130] The super absorbent resin composite layer is composed of the following components: 50 parts by weight of acrylic acid-maleic acid copolymer crosslinked body, 20 parts by weight of sodium acrylate, 15 parts by weight of microcrystalline cellulose, 7.5 parts by weight of glycerol, 4073 parts by weight of poloxamer and 1.2 parts by weight of sodium chloride. The water absorption rate of this layer is 650 times of its own weight, and the water absorption rate is 40 g / min.

[0131] The acrylic acid-maleic acid copolymer crosslinked body is prepared by the following steps:

[0132] (1) Add 500 parts by weight of deionized water into a four-necked reaction flask, stir and heat to 65° C. under nitrogen protection;

[0133] (2) adding 75 parts by weight of acrylic acid monomer and 25 parts by weight of maleic acid in sequence;

[0134] (3) After stirring evenly, 1.0 parts by weight of potassium persulfate was added as an initiator;

[0135] (4) controlling the reaction temperature at 70°C and the reaction time at 4 hours;

[0136] (5) When the reaction is carried out for 2 hours, 2 parts by weight of N,N'-methylenebisacrylamide is added as a cross-linking agent;

[0137] (6) After the reaction was completed, the mixture was cooled to room temperature and washed with ethanol three times;

[0138] (7) vacuum drying at 45°C for 18 hours;

[0139] (8) The product was crushed and sieved to obtain a cross-linked copolymer with a particle size of 150 μm.

[0140] The phase change material cooling layer is composed of the following components: 60 parts by weight of the eutectic mixture of n-octadecane and n-hexadecane (the mass ratio of n-octadecane to n-hexadecane is 3:1), 25 parts by weight of epoxy modified polyacrylate microcapsule wall material, 10 parts by weight of silica aerogel, 5 parts by weight of alumina powder and 2 parts by weight of dimethyl silicone oil. The phase change temperature of this layer is 12°C, the latent heat of phase change is 200 joules / gram, and the thermal conductivity is 0.4 watts / (meter·Kelvin).

[0141] The epoxy-modified polyacrylate microcapsule wall material is prepared by the following steps:

[0142] (1) Add 250 parts by weight of deionized water into a four-necked flask, add 7.5 parts by weight of polyvinyl alcohol while stirring, raise the temperature to 82.5° C., and stir to dissolve;

[0143] (2) lowering the temperature to 62.5° C., adding 45 parts by weight of methyl acrylate, 35 parts by weight of methyl methacrylate, 12.5 parts by weight of butyl acrylate, and 7.5 parts by weight of ethylene oxide-propylene oxide copolymer;

[0144] (3) adding dropwise 0.75 parts by weight of an aqueous solution of ammonium persulfate under high-speed stirring at 1250 rpm;

[0145] (4) Control the reaction temperature at 65°C and react for 5 hours;

[0146] (5) After cooling to room temperature, post-treatment was performed with 3.5 parts by weight of epoxy resin and stirred for 2.5 hours;

[0147] (6) Filter and dry under vacuum at 50°C for 18 hours.

[0148] The phase change material microcapsules are prepared by the following steps:

[0149] (1) mixing 60 parts by weight of n-octadecane and 20 parts by weight of n-hexadecane at 65° C. to form a eutectic mixture;

[0150] (2) dissolving 30 parts by weight of epoxy-modified polyacrylate microcapsule wall material in 250 parts by weight of dichloromethane;

[0151] (3) slowly adding the eutectic mixture into the epoxy-modified polyacrylate microcapsule wall material solution at 6500 rpm in a homogenizer to form an O / W emulsion, and homogenizing for 12.5 minutes;

[0152] (4) transferring the emulsion to a reaction kettle with mechanical stirring, stirring and slowly evaporating the solvent at 40° C. for 10 hours;

[0153] (5) Filter and wash with deionized water 4 times;

[0154] (6) Vacuum drying at 45°C for 36 hours to obtain phase change material microcapsules with an average particle size of 20 μm.

[0155] The thermal conductivity enhancement layer is composed of the following components: 40 parts by weight of polyvinyl alcohol, 3 parts by weight of graphene, 0.3 parts by weight of nano silver particles, 10 parts by weight of gelatin, 15 parts by weight of glycerol, and 100 parts by weight of deionized water. The thermal conductivity of the layer is 0.8 W / (m·K) and the antibacterial rate is 99.5%.

[0156] The heat-insulating protective layer is composed of the following components: 60 parts by weight of polyurethane foam material, 15 parts by weight of fumed silica, 10 parts by weight of montmorillonite, 5 parts by weight of reflective aluminum foil and 7.5 parts by weight of polyvinyl butyral. The thermal conductivity of the layer is 0.045 W / (m·K) and the density is 30 kg / m3.

[0157] The preparation method of the ice compress mask comprises the following steps:

[0158] (1) preparing the skin-friendly layer: mixing microfiber polyester, Lycra elastic fiber and polylactic acid fiber according to a ratio, forming a preliminary fiber web by air-laying process, and then spraying a solution of chitosan modifier and menthol on the surface of the fiber web, and drying at 55° C. for 35 minutes;

[0159] (2) preparing the super absorbent resin composite layer: mixing a crosslinked acrylic acid-maleic acid copolymer, sodium acrylate and microcrystalline cellulose, adding an aqueous solution containing glycerol and poloxamer 407 to form a paste, and then uniformly coating the paste on a supporting non-woven fabric by a coating process, and drying the paste at 65° C. for 2.5 hours;

[0160] (3) preparing the phase change material cooling layer: mixing the phase change material microcapsules with silica aerogel and alumina powder, adding dimethyl silicone oil to adjust the viscosity, and then pressing into a sheet with a thickness of 2.0 mm at 120° C. and 2.0 MPa by hot pressing;

[0161] (4) preparing the thermal conductivity enhancement layer: dissolving polyvinyl alcohol in deionized water at 85° C., cooling to 45° C., adding graphene, nanosilver particles, gelatin and glycerol in sequence, stirring evenly, forming a film by a casting method, and drying at 45° C. for 5 hours;

[0162] (5) preparing the heat-insulating protective layer: mixing a polyurethane prepolymer with fumed silica and montmorillonite, adding a foaming agent and a catalyst, carrying out a foaming reaction in a mold, and then laminating a reflective aluminum foil and a polyvinyl butyral adhesive on the surface of the foaming material;

[0163] (6) The above layers are stacked in order and sealed at the periphery using an ultrasonic heat-sealing process (frequency 25 kHz, pressure 0.3 MPa). At the same time, openings are reserved at the eyes, nose and mouth and support rings filled with antibacterial and hygroscopic materials are installed.

[0164] In this embodiment, by increasing the content of phase change material and adjusting the eutectic ratio, the cooling duration of the ice mask is extended to 3 hours, and the temperature distribution uniformity is improved to ±1.0°C. At the same time, the content of graphene is increased, the thermal conductivity is further improved, and the cooling effect is faster.

[0165] Example 3

[0166] In this embodiment, a new type of ice mask designed for sensitive skin is provided, and the materials of each layer are optimized and adjusted while keeping the basic structure unchanged.

[0167] The skin-friendly layer is composed of the following components: 60 parts by weight of microfiber polyester, 15 parts by weight of Lycra elastic fiber, 40 parts by weight of polylactic acid fiber, 5 parts by weight of chitosan modifier, and 0.5 parts by weight of menthol. The thickness of the skin-friendly layer is 1.5 mm, the surface density is 180 g / m2, and the air permeability is 150 mm / s. In this embodiment, the thickness and air permeability of the skin-friendly layer are increased, making the ice mask softer and more comfortable, suitable for sensitive skin.

[0168] The super absorbent resin composite layer is composed of the following components: 60 parts by weight of acrylic acid-maleic acid copolymer crosslinked body, 25 parts by weight of sodium acrylate, 20 parts by weight of microcrystalline cellulose, 10 parts by weight of glycerol, 4075 parts by weight of poloxamer and 2 parts by weight of sodium chloride. The water absorption rate of this layer is 800 times of its own weight and the water absorption rate is 50 g / min.

[0169] The acrylic acid-maleic acid copolymer crosslinked body is prepared by the following steps:

[0170] (1) Add 600 parts by weight of deionized water into a four-necked reaction flask, stir and heat to 70° C. under nitrogen protection;

[0171] (2) adding 80 parts by weight of acrylic acid monomer and 30 parts by weight of maleic acid in sequence;

[0172] (3) After stirring evenly, 1.5 parts by weight of potassium persulfate was added as an initiator;

[0173] (4) controlling the reaction temperature at 75°C and the reaction time at 5 hours;

[0174] (5) When the reaction is carried out for 2 hours, 3 parts by weight of N,N'-methylenebisacrylamide is added as a cross-linking agent;

[0175] (6) After the reaction was completed, the mixture was cooled to room temperature and washed with ethanol three times;

[0176] (7) vacuum drying at 50°C for 24 hours;

[0177] (8) The product was crushed and sieved to obtain a cross-linked copolymer with a particle size of 200 μm.

[0178] By increasing the amount of the cross-linking agent and prolonging the reaction time, the prepared super absorbent resin has a higher water absorption capacity and better water retention performance, and can maintain a stable water state during the ice compress process to prevent liquid seepage.

[0179] The phase change material cooling layer is composed of the following components: 70 parts by weight of the eutectic mixture of n-octadecane and n-hexadecane (the mass ratio of n-octadecane to n-hexadecane is 4:1), 30 parts by weight of epoxy-modified polyacrylate microcapsule wall material, 15 parts by weight of silica aerogel, 8 parts by weight of alumina powder and 3 parts by weight of dimethyl silicone oil. The phase change temperature of this layer is 15°C, the phase change latent heat is 220 joules / gram, and the thermal conductivity is 0.5 W / (m·K).

[0180] The epoxy-modified polyacrylate microcapsule wall material is prepared by the following steps:

[0181] (1) Add 300 parts by weight of deionized water to a four-necked flask, add 10 parts by weight of polyvinyl alcohol while stirring, and heat to 85° C. and stir to dissolve;

[0182] (2) lowering the temperature to 65° C., adding 50 parts by weight of methyl acrylate, 40 parts by weight of methyl methacrylate, 15 parts by weight of butyl acrylate, and 10 parts by weight of ethylene oxide-propylene oxide copolymer;

[0183] (3) adding dropwise 1.0 part by weight of an aqueous solution of ammonium persulfate under high-speed stirring at 1500 rpm;

[0184] (4) Control the reaction temperature at 70°C and react for 6 hours;

[0185] (5) After cooling to room temperature, post-treatment was performed with 5 parts by weight of epoxy resin and stirred for 3 hours;

[0186] (6) Filter and dry under vacuum at 55°C for 24 hours.

[0187] The phase change material microcapsules are prepared by the following steps:

[0188] (1) 65 parts by weight of n-octadecane and 25 parts by weight of n-hexadecane were uniformly mixed at 70° C. to form a eutectic mixture;

[0189] (2) dissolving 35 parts by weight of epoxy-modified polyacrylate microcapsule wall material in 300 parts by weight of dichloromethane;

[0190] (3) slowly adding the eutectic mixture into the epoxy-modified polyacrylate microcapsule wall material solution at 8000 rpm in a homogenizer to form an O / W emulsion, and homogenizing for 15 minutes;

[0191] (4) transferring the emulsion to a reaction kettle with mechanical stirring, stirring and slowly evaporating the solvent at 45° C. for 12 hours;

[0192] (5) Filter and wash with deionized water 5 times;

[0193] (6) Vacuum drying at 50°C for 48 hours to obtain phase change material microcapsules with an average particle size of 30 μm.

[0194] In this embodiment, the average particle size of the microcapsules is increased to 30 μm, which allows each microcapsule to contain more phase change materials, extending the cooling duration. At the same time, the phase change temperature is increased to 15°C, making the ice compress temperature milder and suitable for sensitive skin.

[0195] The thermal conductivity enhancement layer is composed of the following components: 50 parts by weight of polyvinyl alcohol, 5 parts by weight of graphene, 0.5 parts by weight of nano silver particles, 15 parts by weight of gelatin, 20 parts by weight of glycerol, and 100 parts by weight of deionized water. The thermal conductivity of the layer is 1.0 W / (m·K) and the antibacterial rate is 99.9%.

[0196] The heat-insulating protective layer is composed of the following components: 70 parts by weight of polyurethane foam material, 20 parts by weight of fumed silica, 15 parts by weight of montmorillonite, 8 parts by weight of reflective aluminum foil and 10 parts by weight of polyvinyl butyral. The thermal conductivity of the layer is 0.06 W / (m·K) and the density is 40 kg / m3.

[0197] The preparation method of the ice compress mask comprises the following steps:

[0198] (1) preparing the skin-friendly layer: mixing microfiber polyester, Lycra elastic fiber and polylactic acid fiber according to a ratio, forming a preliminary fiber web by air-laying process, and then spraying a solution of chitosan modifier and menthol on the surface of the fiber web, and drying at 60° C. for 40 minutes;

[0199] (2) preparing the super absorbent resin composite layer: mixing a crosslinked acrylic acid-maleic acid copolymer, sodium acrylate and microcrystalline cellulose, adding an aqueous solution containing glycerol and poloxamer 407 to form a paste, and then uniformly coating the paste on a supporting non-woven fabric by a coating process, and drying the paste at 70° C. for 3 hours;

[0200] (3) preparing the phase change material cooling layer: mixing the phase change material microcapsules with silica aerogel and alumina powder, adding dimethyl silicone oil to adjust the viscosity, and then pressing into a sheet with a thickness of 2.5 mm at 130° C. and 2.5 MPa by hot pressing;

[0201] (4) preparing the thermal conductivity enhancement layer: dissolving polyvinyl alcohol in deionized water at 90° C., cooling to 50° C., adding graphene, nanosilver particles, gelatin and glycerol in sequence, stirring evenly, forming a film by a casting method, and drying at 50° C. for 6 hours;

[0202] (5) preparing the heat-insulating protective layer: mixing a polyurethane prepolymer with fumed silica and montmorillonite, adding a foaming agent and a catalyst, carrying out a foaming reaction in a mold, and then laminating a reflective aluminum foil and a polyvinyl butyral adhesive on the surface of the foaming material;

[0203] (6) The above layers are stacked in order, and the periphery is sealed by ultrasonic heat sealing process (frequency 30 kHz, pressure 0.4 MPa). At the same time, openings are reserved at the eyes, nose and mouth positions and support rings filled with antibacterial and hygroscopic materials are installed.

[0204] In this embodiment, by increasing the upper limit of the amount of each component and optimizing the process parameters, an ice mask that is more suitable for sensitive skin is prepared. The mask has a milder cooling temperature (15°C), a cooling duration of 4 hours, no condensation water leakage, and a wearing comfort score of up to 9.5 points, which is particularly suitable for cold compress care of sensitive skin after surgery.

[0205] Comparative Example 1

[0206] In order to verify the superiority of the new ice mask of the present invention, a traditional ice mask was prepared as comparative example 1. The mask only includes an inner polyester fiber non-woven fabric layer, a middle ice bag layer and an outer waterproof layer. The ice bag layer is filled with ordinary water and does not contain any phase change material and super absorbent resin. The edge of the mask is sealed with hot melt adhesive. The ice bag layer needs to be frozen in the freezer before use.

[0207] Preparation method: Cut the polyester fiber non-woven fabric into an appropriate shape, place the pre-prepared PE plastic water bag on the non-woven fabric, then cover it with another layer of non-woven fabric, and finally apply hot melt adhesive on the edge to seal it. The ice bag is filled with only pure water, without other additives.

[0208] Comparative Example 2

[0209] Comparative Example 2 uses a commercially available gel ice mask, which is mainly composed of sodium polyacrylate gel, glycerin and water, and does not contain phase change material microcapsules and multilayer structure design. The gel mask needs to be refrigerated before use and is directly applied to the face when used, without openings for the eyes, nose and mouth.

[0210] Comparative Example 3

[0211] Comparative Example 3 uses an ice mask containing phase change material but without a super absorbent resin composite layer. The mask includes an inner cotton layer, an intermediate phase change material layer, and an outer polyester fabric. The phase change material is directly filled in a plastic bag instead of using microencapsulation technology. The phase change material uses hexadecanol (1-hexadecanol) with a phase change temperature of 49°C, which is not suitable for the temperature requirements of facial cold compresses.

[0212] Preparation method: Cut cotton cloth into the shape of a mask, place a plastic bag filled with hexadecyl alcohol on the cotton cloth, then cover it with polyester fabric, and finally seal the edges by sewing.

[0213] In order to comprehensively evaluate the performance of the new ice mask of the present invention, systematic performance tests were carried out on Examples 1-3 and Comparative Examples 1-3. The test items included cooling duration, cooling uniformity, condensation water control ability, detumescence effect and analgesic effect, etc.

[0214] The test method is as follows:

[0215] 1. Cooling duration test: Place the mask in a constant temperature and humidity chamber (temperature 25±1℃, relative humidity 65±5%), and use an infrared thermal imager (FLIRE60) to record the mask surface temperature every 30 minutes until the mask surface temperature rises to more than 95% of the ambient temperature at room temperature. The cooling duration is defined as the length of time the mask surface temperature is below 20℃.

[0216] 2. Cooling uniformity test: Use an infrared thermal imager to scan the surface of the mask. After 1 hour of use, measure the difference between the highest and lowest surface temperatures of the mask and record it as the temperature distribution difference value.

[0217] 3. Condensation water control ability test: Place the mask on a simulated human face model. The environmental conditions are temperature 25±1℃ and relative humidity 80±5%. After 2 hours of testing, collect and weigh the dripping water droplets, and observe the wetness of the contact surface between the mask and the model.

[0218] 4. Deswelling effect test:

[0219] 20 volunteers with mild facial edema (after medical aesthetics or allergic edema) were selected and randomly divided into 5 groups. They were treated with cold compress masks of Examples 1-3 and Comparative Examples 1-2, respectively. Cold compress 3 times a day, 20 minutes each time, for 3 consecutive days. A 3D face scanner (VectraH1) was used to measure the degree of edema (volume change) in key parts of the face before, during (daily after treatment) and after treatment. At the same time, professional physicians conducted clinical evaluations and gave scores (0-10 points, the higher the score, the better the detumescence effect).

[0220] 5. Analgesic effect test:

[0221] 15 volunteers with mild pain after facial surgery were selected and randomly divided into 5 groups. They were treated with cold compress masks of Examples 1-3 and Comparative Examples 1-2, respectively. Cold compress was applied 4 times a day, 15 minutes each time, for 2 consecutive days. The visual analog scale (VAS, 0-10 points, 0 means no pain, 10 means severe pain) was used to ask the volunteers to assess the degree of pain before and after each cold compress. At the same time, the volunteers' evaluation of comfort was recorded (1-10 points, the higher the score, the better the comfort).

[0222] 6. Microbial control capability test:

[0223] Immerse the mask in water containing 1×10 6 The masks were placed in a mixed solution of Staphylococcus aureus and Escherichia coli at 37°C for 10 seconds and then cultured at 37°C for 24 hours to measure the survival rate of the bacteria and evaluate the antibacterial properties of the masks.

[0224] The test results and analysis are as follows:

[0225] Table 1. Cooling performance test results

[0226]

[0227] From the test results in Table 1, it can be seen that Examples 1-3 of the present invention are significantly superior to Comparative Examples 1-3 in terms of cooling duration, temperature distribution uniformity, condensed water control ability and antibacterial performance. In particular, Example 3 has a cooling duration of up to 4 hours, a temperature distribution difference of only ±0.8°C, no condensed water dripping, and an antibacterial rate of up to 99.9%. This is mainly due to the innovative multi-layer structure design and material selection in the present invention, especially the synergistic effect of the phase change material microcapsule technology and the super absorbent resin composite layer.

[0228] In contrast, the cooling duration of the conventional ice pack mask in Comparative Example 1 was only 0.5 hours, the temperature distribution was uneven (±5.2°C), the condensed water dripped severely (8.75g), and the antibacterial performance was poor (25.0%). Although the commercially available gel mask in Comparative Example 2 was improved in some aspects, the overall performance was still significantly lower than that of the embodiments of the present invention. Although Comparative Example 3 used phase change materials, the lack of microencapsulation and the lack of a super absorbent resin composite layer resulted in poor condensed water control and cooling uniformity.

[0229] Table 2. Medical effect test results

[0230]

[0231] Table 2 shows the test results of each sample in terms of medical effects. The embodiments of the present invention are significantly better than the comparative examples in terms of detumescence effect, analgesic effect and user comfort. In particular, Example 3 scored 9.2 points for detumescence effect, and the detumescence rate reached 85.7%; the analgesic effect scored 9.0 points, and the pain relief rate reached 78.2%; the user comfort score was 9.5 points, close to the full score. These excellent medical effects are mainly derived from the continuous and stable cooling capacity, uniform temperature distribution and excellent fit of the ice mask of the present invention.

[0232] Clinical observations show that Example 3 is particularly effective in treating facial edema, with the degree of edema reduced by an average of 45.3% on the first day of treatment, and almost completely subsided by the end of the third day (an average reduction of 85.7%). While the conventional ice pack mask of Comparative Example 1 has a certain detumescence effect in the initial stage, the treatment effect is not lasting due to the short cooling time and unstable temperature, and the edema reduction rate after three days of treatment is only 43.5%.

[0233] In terms of analgesic effect, the embodiments of the present invention also performed well. According to volunteer feedback, the pain relief in Example 3 was obvious within 5 minutes after the start of the cold compress, and the relief effect lasted until the next cold compress. However, the analgesic effect of the comparative product was weaker and shorter in duration. Some volunteers even reported that when using Comparative Example 1, the dripping of condensed water and the low temperature caused discomfort, which reduced the overall treatment experience.

[0234] The reason why Example 3 performs best in terms of medical effect is mainly due to its optimized phase change temperature (15°C) and excellent temperature uniformity (±0.8°C). This temperature range can effectively reduce edema and pain, and will not cause skin discomfort or potential frostbite risks due to the low temperature like traditional ice packs. At the same time, the addition of the super absorbent resin composite layer ensures zero condensation water dripping, greatly improving the user experience.

[0235] Through comprehensive testing and comparative analysis of Examples 1-3 and Comparative Examples 1-3, the following conclusions can be drawn:

[0236] 1. The new ice compress mask of the present invention is significantly superior to traditional ice compress products and commercially available gel masks in terms of technical indicators such as cooling duration, temperature uniformity, condensation water control ability and antibacterial properties.

[0237] 2. The unique multi-layer structure design of the present invention, especially the synergistic effect of phase change material microcapsule technology and super absorbent resin composite layer, effectively solves the problems of short cooling time, unstable temperature and condensed water dripping of traditional ice compress masks.

[0238] 3. In terms of medical applications, the ice mask of the present invention exhibits excellent swelling and analgesic effects, and is particularly suitable for cold compress treatment after facial medical aesthetics, which can significantly improve the treatment effect and patient comfort.

[0239] 4. Example 3 achieves the best comprehensive performance by optimizing the material composition and process parameters of each layer, and is particularly suitable for cold compress care for sensitive skin.

[0240] 5. The ice mask of the present invention is provided with ventilation openings at the eyes, nose and mouth, and is combined with a support ring design filled with a super absorbent resin composite layer and antibacterial and hygroscopic materials, which greatly improves the comfort and safety of the product.

[0241] To sum up, the new ice compress mask provided by the present invention successfully solves many technical pain points of traditional ice compress products through innovative material combination and structural design, has significant advantages in cooling effect, medical effect and user experience, and has broad application prospects and commercial value.

Claims

1. A new type of ice mask, characterized in that: The ice mask comprises: The skin-friendly layer is arranged on the innermost side; A highly water-absorbent resin composite layer is disposed outside the skin-friendly layer; A phase change material cooling layer is arranged outside the super absorbent resin composite layer; A heat conduction enhancement layer is arranged outside the phase change material cooling layer; A heat-insulating protective layer, disposed on the outermost side; and An adjustable elastic headband for fixing the ice mask; The ice compress mask is provided with ventilation openings at the eye, nose and mouth positions respectively, and a support ring with a microporous structure is provided around each of the ventilation openings, and the support ring is filled with antibacterial and moisture-absorbing material.

2. The new ice mask according to claim 1 is characterized in that: The skin-friendly layer consists of the following components: 40-60 parts by weight of microfiber polyester; Lycra elastic fiber 5-15 parts by weight; 20-40 parts by weight of polylactic acid fiber; 1-5 parts by weight of chitosan modifier; and Menthol 0.1-0.5 parts by weight.

3. The new ice mask according to claim 1 is characterized in that: The super absorbent resin composite layer is composed of the following components: 40-60 parts by weight of acrylic acid-maleic acid copolymer crosslinker; Sodium acrylate 15-25 parts by weight; 10-20 parts by weight of microcrystalline cellulose; Glycerol 5-10 parts by weight; Poloxamer 4071-5 parts by weight; and Sodium chloride 0.5-2 parts by weight; Wherein, the acrylic acid-maleic acid copolymer crosslinked body is prepared by the following steps: Add 400-600 parts by weight of deionized water into a four-necked reaction flask, stir and heat to 60-70°C under nitrogen protection; Add 70-80 parts by weight of acrylic acid monomer and 20-30 parts by weight of maleic acid in sequence; After stirring evenly, add 0.5-1.5 parts by weight of potassium persulfate as an initiator; Control the reaction temperature at 65-75°C and the reaction time at 3-5 hours; When the reaction is carried out for 2 hours, 1-3 parts by weight of N,N'-methylenebisacrylamide is added as a cross-linking agent; After the reaction was completed, the mixture was cooled to room temperature and washed with ethanol three times; Vacuum drying at 40-50°C for 12-24 hours; The product is crushed and sieved to obtain a cross-linked copolymer with a particle size of 100-200 μm.

4. The new ice mask according to claim 1 is characterized in that: The phase change material cooling layer is composed of the following components: 50-70 parts by weight of a eutectic mixture of n-octadecane and n-hexadecane, wherein the mass ratio of n-octadecane to n-hexadecane is 2:1 to 4:1; 20-30 parts by weight of epoxy modified polyacrylate microcapsule wall material; 5-15 parts by weight of silica aerogel; 3-8 parts by weight of aluminum oxide powder; and 1-3 parts by weight of dimethyl silicone oil; Wherein, the epoxy-modified polyacrylate microcapsule wall material is prepared by the following steps: Add 200-300 parts by weight of deionized water into a four-necked flask, add 5-10 parts by weight of polyvinyl alcohol while stirring, raise the temperature to 80-85°C and stir to dissolve; Lower the temperature to 60-65° C., add 40-50 parts by weight of methyl acrylate, 30-40 parts by weight of methyl methacrylate, 10-15 parts by weight of butyl acrylate, and 5-10 parts by weight of ethylene oxide-propylene oxide copolymer; Under high-speed stirring at 1000-1500 rpm, 0.5-1.0 parts by weight of an aqueous solution of ammonium persulfate is added dropwise; Control the reaction temperature at 60-70°C and react for 4-6 hours; After cooling to room temperature, post-treat with 2-5 parts by weight of epoxy resin and stir for 2-3 hours; Filter and dry under vacuum at 45-55°C for 12-24 hours.

5. The new ice mask according to claim 4 is characterized in that: The phase change material microcapsules in the phase change material cooling layer are prepared by the following steps: Mix 55-65 parts by weight of n-octadecane and 15-25 parts by weight of n-hexadecane at 60-70° C. to form a eutectic mixture; Dissolve 25-35 parts by weight of epoxy-modified polyacrylate microcapsule wall material in 200-300 parts by weight of dichloromethane; Slowly adding the eutectic mixture to the epoxy-modified polyacrylate microcapsule wall material solution at 5000-8000 rpm in a homogenizer to form an O / W emulsion, and homogenizing for 10-15 minutes; The emulsion was transferred to a reaction kettle with mechanical stirring, stirred at 35-45°C and the solvent was slowly evaporated for 8-12 hours; Filter and wash with deionized water 3-5 times; The phase change material microcapsules with an average particle size of 10-30 μm are obtained by vacuum drying at 40-50° C. for 24-48 hours.

6. The novel ice compress mask according to claim 1 is characterized in that: The heat conduction enhancement layer is composed of the following components: Polyvinyl alcohol 30-50 parts by weight; 1-5 parts by weight of graphene; 0.1-0.5 parts by weight of nano silver particles; Gelatin 5-15 parts by weight; 10-20 parts by weight of glycerol; and The balance of deionized water is 100 parts by weight.

7. The novel ice compress mask according to claim 1 is characterized in that: The thermal insulation protective layer is composed of the following components: 50-70 parts by weight of polyurethane foam material; 10-20 parts by weight of fumed silica; Montmorillonite 5-15 parts by weight; 2-8 parts by weight of reflective aluminum foil; and Polyvinyl butyral 5-10 parts by weight.

8. The novel ice compress mask according to claim 1 is characterized in that: The ice mask is prepared by the following steps: The skin-friendly layer is prepared by mixing microfiber polyester, Lycra elastic fiber and polylactic acid fiber according to a ratio, forming a preliminary fiber web by air-laid process, and then spraying a solution of chitosan modifier and menthol on the surface of the fiber web, and drying at 50-60° C. for 30-40 minutes; The highly absorbent resin composite layer is prepared by mixing a crosslinked acrylic acid-maleic acid copolymer, sodium acrylate and microcrystalline cellulose, adding an aqueous solution containing glycerol and poloxamer 407 to form a paste, and then uniformly coating the paste on a supporting non-woven fabric by a coating process, and drying the paste at 60-70° C. for 2-3 hours; Prepare the phase change material cooling layer: mix the phase change material microcapsules with silica aerogel and alumina powder, add dimethyl silicone oil to adjust the viscosity, and then use hot pressing method to press into a sheet with a thickness of 1.5-2.5 mm at 110-130° C. and 1.5-2.5 MPa; Preparation of the thermal conductivity enhancement layer: dissolving polyvinyl alcohol in deionized water at 80-90° C., cooling to 40-50° C., sequentially adding graphene, nanosilver particles, gelatin and glycerol, stirring evenly, forming a film by a casting method, and drying at 40-50° C. for 4-6 hours; The heat-insulating protective layer is prepared by mixing a polyurethane prepolymer with fumed silica and montmorillonite, adding a foaming agent and a catalyst, carrying out a foaming reaction in a mold, and then compounding a reflective aluminum foil and a polyvinyl butyral adhesive on the surface of the foaming material; The above layers are stacked in sequence, and sealed at the periphery using an ultrasonic heat-sealing process. At the same time, openings are reserved at the eyes, nose and mouth positions and support rings filled with antibacterial and hygroscopic materials are installed.

9. The novel ice compress mask according to claim 8 is characterized in that: The frequency of the ultrasonic heat-sealing process is 20-30 kHz, and the pressure is 0.2-0.4 MPa.

10. The novel ice compress mask according to claim 1, characterized in that: The support ring of the microporous structure is made of a thermoplastic elastomer material, and the antibacterial and hygroscopic material comprises a modified cellulose and a quaternary ammonium salt complex.

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