Active cooling mask

Abstract

The invention discloses an active cooling mask, comprising a mask body (1), a fixed ear rope (2), a nose pressing strip (3), a functional area (4) and a release area (5), wherein the mask body is provided with an absorbent cotton gauze layer (6), a phase change cold storage layer (7), an active cooling layer (8), an ultrafine polypropylene fiber melt-blown material layer (9), a heat insulation layer (10) and a non-woven fabric layer (11) in sequence from the inside to the outside. The active cooling mask disclosed in the invention can effectively cool down and reduce the wearer's facial temperature, and breathe smoothly. At the same time, the matching design of phase change cold storage and dissolved heat absorption refrigeration can effectively extend the cooling time. Moreover, the invention does not rely on cold sources such as refrigerators and ice cubes, but only needs to absorb heat through the combination of materials to provide a cold source. It is ready to use and easy to use, which greatly increases the practicality of the invention.

Description

Technical Field

[0001] The present invention relates to the technical field of masks, and in particular to an active cooling mask. Background Art

[0002] The function of medical masks is to filter particles and pathogens in the air, and block droplets, blood, body fluids, secretions, etc. Although traditional medical masks have a certain degree of breathability, in some specific occasions, such as operating rooms and outdoors in summer, it is still very hot for medical staff to wear them for a long time. During surgery, sweating may affect the field of vision, or dripping may cause infection to the patient. In 2020, with the arrival of the epidemic, masks have also come into everyone's view and become one of the indispensable means of epidemic prevention for everyone.

[0003] However, masks are all multi-layered, and general masks include a bottom cover layer, a filter layer, and a mask layer. Therefore, when wearing a mask, it will produce a stuffy feeling, especially in summer or in a high temperature and high humidity environment, which can easily cause poor breathing, sweating, and high facial temperature. The technical means used in the prior art are to add a breathing valve to facilitate the discharge of exhaled waste gas, reduce the feeling of stuffiness, and ensure smooth breathing, but it cannot fundamentally solve the problem of sweating after wearing a mask and the high facial temperature caused by wearing a mask; the technical means used in the prior art also include opening an air outlet to reduce stuffiness and ensure smooth breathing, but it is easy to cause poor filtering of the mask and cannot effectively reduce the temperature.

[0004] In summary, there is an urgent need for an active cooling mask, which, in specific implementation, can reduce the temperature of the wearer's face after wearing it, keep a cool feeling, is suitable for wearing in summer, and is suitable for wearing in a high temperature and high humidity working environment. At the same time, it can also actively cool down, thereby achieving the effect of instant cooling and convenient use. Summary of the invention

[0005] The object of the present invention is to provide an active cooling mask to solve the problems raised in the above background technology, such as difficulty in breathing, stuffiness and sweating, and high facial temperature when used in summer or in a high temperature and high humidity environment.

[0006] The technical solution adopted by the present invention to solve the above-mentioned problem is: an active cooling mask, comprising a mask body, wherein the mask body is provided with an absorbent cotton gauze layer, an ultra-fine polypropylene fiber melt-blown material layer, an insulation layer and a non-woven fabric layer from the inside to the outside; the characteristic is that a functional area consisting of a phase change cold storage layer and an active refrigeration layer is provided between the absorbent cotton gauze layer and the ultra-fine polypropylene fiber melt-blown material layer.

[0007] Furthermore, the absorbent cotton gauze, ultrafine polypropylene fiber melt-blown material and non-woven fabric in the mask body are all porous materials with good air permeability.

[0008] Furthermore, fixed ear ropes are provided on the left and right sides of the mask body, and the fixed ear ropes are elastic ropes.

[0009] Furthermore, a nose pressing strip is provided in the middle of the upper end of the mask body, and the nose pressing strip is a metal nose pressing strip.

[0010] Furthermore, the thermal insulation layer is a nano aerogel felt layer.

[0011] Furthermore, the functional area is located below the nose pressure strip, corresponding to the left and right cheeks of a person, and is composed of a phase change cold storage layer and an active cooling layer, wherein the material A in the active cooling layer is stacked or wrapped in two layers of phase change cold storage layers; the specific material A is ammonium nitrate, potassium nitrate, carbon amide and ammonium chloride, one or a mixture of more than two.

[0012] Furthermore, a release area is provided at the functional area of ​​the left and right cheeks of a person, and the release area includes a plastic film, a plastic cutter head and a material B. The plastic film is a hollow and sealed bag. The plastic cutter head and the material B are placed in the bag formed by the plastic film. One side of the bag is in contact with the active cooling layer, and the other side passes through the non-woven fabric layer and is located outside the mask body, that is, it passes through the non-woven fabric side all the way to the active cooling layer; the plastic cutter head is a cylinder, and a blade with a height of 1-3mm is provided on the bottom surface of the cylinder facing the active cooling layer, and the bottom surface of the cylinder away from the active cooling layer passes through the non-woven fabric layer and is located outside the mask body; the material B is one of water, propylene glycol, and glycerin, or a mixture of two or more.

[0013] Furthermore, the release area can drive the plastic cutter head to cut the plastic film by rotating, so that the material B is mixed with the material A in the active cooling layer; after the material A and the material B are mixed, they can absorb heat and cool.

[0014] Furthermore, the phase change cold storage layer is composed of a polymer phase change material with controllable temperature, high thermal conductivity and flexibility. The polymer phase change material used can be bent, twisted and deformed at any temperature without losing material properties. Specifically, it is a mixture of one or more of sodium polyacrylate, polyethylene glycol, isocyanate, carboxymethyl cellulose, sodium carboxymethyl cellulose, expanded graphite and calcium chloride hexahydrate.

[0015] The active cooling mask of the present invention comprises a mask body, a fixed ear rope and nose pressing strip, a functional area and a release area. The mask body is provided with an absorbent cotton gauze layer, a phase change cold storage layer, an active refrigeration layer, an ultrafine polypropylene fiber melt-blown material layer, a heat insulation layer and a non-woven fabric layer from the inside to the outside. The invention can effectively cool down and reduce the wearer's facial temperature, and breathe smoothly. At the same time, the matching design of phase change cold storage and dissolved heat absorption refrigeration can effectively extend the cooling time. Moreover, the invention does not rely on cold sources such as refrigerators and ice cubes, but only needs to absorb heat through the combination of materials to provide a cold source. It is ready to use and easy to use, which greatly increases the practicality of the invention.

[0016] Instruction Manual

[0017] Figure 1 This is a diagram showing the structure of the active cooling mask of the present invention;

[0018] Figure 2 This is a cross-sectional view of the active cooling mask of the present invention. DETAILED DESCRIPTION

[0019] The following is a description of the implementation of the present invention by specific embodiments. People familiar with the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative achievements are within the scope of protection of the present invention.

[0020] The present invention relates to an active cooling mask, comprising a mask body (1), wherein the mask body is provided with an absorbent cotton gauze layer (6), an ultrafine polypropylene fiber melt-blown material layer (9), a heat insulation layer (10) and a non-woven fabric layer (11) in sequence from the inside to the outside; and a functional area (4) consisting of a phase change cold storage layer (7) and an active refrigeration layer (8) is provided between the absorbent cotton gauze layer (6) and the ultrafine polypropylene fiber melt-blown material layer (9).

[0021] Fixed ear ropes (2) are provided on the left and right sides of the mask body (1), and the fixed ear ropes (2) are elastic ropes.

[0022] A nose pressing strip (3) is provided at the middle of the upper end of the mask body (1), and the nose pressing strip (3) is a metal nose pressing strip (3).

[0023] The thermal insulation layer (10) is a nano aerogel felt layer.

[0024] Compared with traditional materials, aerogel can achieve better results with lighter weight and smaller volume. Aerogel has the advantages of heat insulation and high temperature resistance. The use of nano aerogel felt can effectively prevent the entry of external heat and the loss of internal coolness, thereby extending the cooling time.

[0025] The functional area (4) is located below the nose pressing strip (3), corresponding to the left and right cheeks of a person, and is composed of a phase change cold storage layer (7) and an active cooling layer (8), wherein the material A in the active cooling layer (8) is stacked or wrapped in two layers of phase change cold storage layers (7); specifically, the material A is a mixture of carbonamide and ammonium chloride.

[0026] A release area (5) is provided at the position of the functional area (4) on the left and right cheeks of the person, and the release area (5) comprises a plastic film (12), a plastic blade (13) and a material B (14); the plastic film (12) is a hollow sealed bag body, the plastic blade (13) and the material B (14) are placed in the bag body formed by the plastic film (12), one side of the bag body is in contact with the active cooling layer (8), and the other side of the bag body passes through the non-woven fabric layer (11) and is located outside the mask body (1), that is, it passes through the non-woven fabric side all the way to the active cooling layer; the plastic blade (13) is a column, and a blade with a height of 1-3 mm is provided on the bottom surface of the column facing the active cooling layer, and the bottom surface of the column away from the active cooling layer passes through the non-woven fabric layer (11) and is located outside the mask body (1); the material B is a mixture of water and propylene glycol.

[0027] The release zone (5) can drive the head of the plastic cutter (13) to cut the plastic film (12) by rotating, so that the material B (14) can be mixed with the material A in the active cooling layer (8); after the material A and the material B (14) are mixed, heat absorption and cooling can be achieved.

[0028] Compared with several common types of extrusion spontaneous cooling products on the market, the rotating design used in the present invention reduces the possibility of damage to the product due to extrusion when it is carried around while maintaining ease of use.

[0029] The phase-change cold storage layer (7) is composed of a polymer phase-change material that is temperature-controllable, highly thermally conductive and flexible. The polymer phase-change material used can be bent, twisted and deformed at any temperature without losing material properties. The specific mass ratio is a mixture of 20% sodium polyacrylate, 15% carboxymethyl cellulose, 5% expanded graphite and 60% calcium chloride hexahydrate.

[0030] The heat absorption by the reaction of carbonamide and water is used to provide cooling. At the same time, a design combining a phase change material and a heat absorbing material is adopted. The lost cooling energy can be collected and, under the premise that the temperature is too low due to the heat absorption, the phase change material can be kept at a temperature suitable for the facial skin. At the same time, the problem of flexibility in use is also solved. The system is cool immediately after use and is convenient to use. Of course, the phase change material in the present invention is not only used as a material for collecting the cooling energy generated by the reaction, but can also be provided as a main cooling source. The mask can be placed in a refrigerator or a freezer to store energy in the phase change material, and then the dissolved heat absorbing material can be used as an auxiliary cooling source. The cooling time of the mask can also be greatly extended, thereby meeting the normal use time of the mask.

Claims

1. An active cooling mask, comprising a mask body (1), wherein the mask body is provided with an absorbent cotton gauze layer (6), an ultrafine polypropylene fiber melt-blown material layer (9), a heat insulation layer (10) and a non-woven fabric layer (11) in order from the inside to the outside; the characteristics are: A functional area (4) consisting of a phase-change cold storage layer (7) and an active refrigeration layer (8) is provided between the absorbent cotton gauze layer (6) and the ultra-fine polypropylene fiber melt-blown material layer (9); The functional area (4) is located below the nose pressing strip (3), corresponding to the left and right cheeks of a person, and is composed of a phase change cold storage layer (7) and an active cooling layer (8), wherein the material A in the active cooling layer (8) is stacked or wrapped by the two phase change cold storage layers (7); The specific material A is one or a mixture of two or more of ammonium nitrate, potassium nitrate, carbon amide and ammonium chloride.

2. The active cooling mask according to claim 1, characterized in that: The absorbent cotton gauze, ultrafine polypropylene fiber melt-blown material and non-woven fabric in the mask body (1) are all porous materials with good air permeability.

3. The active cooling mask according to claim 1, characterized in that: Fixed ear ropes (2) are provided on the left and right sides of the mask body (1), and the fixed ear ropes (2) are elastic ropes.

4. The active cooling mask according to claim 1, characterized in that: A nose pressing strip (3) is provided at the middle of the upper end of the mask body (1), and the nose pressing strip (3) is a metal nose pressing strip (3).

5. The active cooling mask according to claim 1, characterized in that: The thermal insulation layer (10) is nano aerogel felt layer.

6. The active cooling mask according to claim 1, characterized in that: On the left and right sides of a person's face Cheek A release area (5) is provided at the position of the functional area (4), the release area (5) comprising a plastic film (12), a plastic blade (13) and a material B (14); the plastic film (12) is a hollow sealed bag; the plastic blade (13) and the material B (14) are placed in the bag formed by the plastic film (12); one side of the bag is in contact with the active cooling layer (8), and the other side of the bag passes through the non-woven fabric layer (11) and is located outside the mask body (1), that is, it passes through the non-woven fabric side all the way to the active cooling layer; the plastic blade (13) is a column; a blade with a height of 1-3 mm is provided on the bottom surface of the column facing the active cooling layer; the bottom surface of the column away from the active cooling layer passes through the non-woven fabric layer (11) and is located outside the mask body (1); the material B is one of water, propylene glycol and glycerin, or a mixture of two or more.

7. The active cooling mask according to claim 6, characterized in that: The release zone (5) can drive the head of the plastic knife (13) to cut the plastic film (12) by rotating, thereby allowing the material B (14) to mix with the material A in the active cooling layer (8); after the material A and the material B (14) are mixed, they can absorb heat and cool.

8. The active cooling mask according to claim 1, characterized in that: The phase-change cold storage layer (7) is composed of a polymer phase-change material that is temperature-controllable, highly thermally conductive and flexible. The polymer phase-change material used is a polymer phase-change material that can be bent, twisted and deformed at any temperature without losing material properties. Specifically, it is a mixture of one or more of sodium polyacrylate, polyethylene glycol, isocyanate, carboxymethyl cellulose, sodium carboxymethyl cellulose, expanded graphite and calcium chloride hexahydrate.

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