Washable plane mask convenient for replacing filter disc
Technical Field
The utility model belongs to the technical field of health supplies, concretely relates to can wash plane gauze mask convenient to change filter element.
Background
The mask is a sanitary article, is generally worn at the mouth and nose part, is used for filtering air entering the mouth and nose so as to achieve the purpose of preventing harmful gas, smell and spray from entering and exiting the mouth and nose of a wearer, and is made of gauze or paper and the like. The mask has a certain filtering function on air entering the lung.
The traditional protective mask is formed by overlapping and sewing traditional gauze layers, so that the whole protective mask is basically discarded after being used to ensure the integral filtering and protecting performance, the cost is high, the adsorption and filtering effects are limited, only large particles can be prevented from being absorbed, and the warm-keeping effect is achieved; even if the existing medical mask has relatively strong resistance to bacteria and viruses, the protection effect on PM2.5 is almost zero. Therefore, the existing mask is difficult to protect PM2.5 or extremely fine particles and has poor effect.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a can wash plane gauze mask convenient to change filter element, the accessible is changed new filter element and is guaranteed to filter protective capacities, and also can play fine long-time separation to fine particles such as PM 2.5.
In order to solve the technical problem, the utility model discloses a technical scheme is:
can wash plane gauze mask convenient to change filter element, including gauze mask main part and filter element, the inner face of gauze mask main part is sewed up and is connected with one-way wet precoat of leading just one-way formation accommodation chamber between wet precoat of leading and the gauze mask main part, the filter element can be dismantled and set up in the accommodation chamber, just the filter element includes that activated carbon piece, symmetry glue or sew up the non-woven fabrics basic unit of connection side around the activated carbon piece and electrostatic spinning fibre membrane layer on the surface of one side of non-woven fabrics basic unit that is close to the activated carbon piece and glue respectively and establish the waterproof ventilative rete at non-woven fabrics basic unit opposite side surface.
Preferably, the one-way moisture-conducting fabric layer is a polyester-cover cotton double-layer knitted fabric, wherein polyester is arranged on the outer side and is subjected to hydrophilic finishing, and cotton is arranged on the inner side and is subjected to water repellent finishing.
Preferably, the mask body is cotton cloth.
Preferably, the periphery of the mask body is sewn and connected with a wrapping edge.
Preferably, the left side and the right side of the mask body are symmetrically provided with elastic ear bands.
Preferably, the non-woven fabric base layer is a bamboo charcoal fiber non-woven fabric layer, an anion nano non-woven fabric layer or a nano silver ion non-woven fabric layer.
Preferably, the filter and the mask body are detachably connected together through a hook and loop fastener or a snap fastener.
Compared with the prior art, the utility model discloses following beneficial effect has:
the plane mask comprises a mask main body, a one-way moisture-conducting fabric layer and a multi-layer filter disc, so that the filter disc is convenient to replace, and the mask main body can be washed by water and can be utilized for multiple times, thereby saving the cost; secondly, the inner surface of the mask main body is sewn with a unidirectional moisture-conducting fabric layer, so that the air permeability and the breathing performance are ensured, and simultaneously, the water vapor generated in the wearing and breathing process can quickly permeate into the terylene outer layer from the cotton inner layer, thereby keeping the mouth and the nose dry and comfortable; the filter disc adopts an activated carbon sheet, an electrostatic spinning fiber membrane layer and a non-woven fabric base layer, the whole plane mask is endowed with good antibacterial and pollutant filtering capabilities while the air permeability and the respiratory performance are ensured, the electrostatic spinning fiber membrane layer and the activated carbon sheet are adopted, physical ultrafiltration is utilized, the performance is kept longer than that of an electret melt-blown material with a recession defect, meanwhile, a waterproof air permeable membrane layer is bonded on the other surface of the non-woven fabric base layer, and the waterproof air permeable membrane layer prevents water vapor from entering the electrostatic spinning fiber membrane layer and the activated carbon sheet to influence the filtration and protection performance; fourthly, the multi-layer protection is formed by the mask main body, the unidirectional moisture-conducting fabric layer and the multi-layer structure of the filter disc together, the sanitary protection capability is enhanced, pollutants in the air are effectively blocked, and the blocking performance of the mask to PM2.5 is excellent.
Drawings
Fig. 1 is a view of the inner surface of the flat mask of the present invention.
Fig. 2 is a sectional view taken along a-a shown in fig. 1.
The labels in the figure are: 10. a mask body; 11. a unidirectional moisture-conducting fabric layer; 12. a nose bridge strip; 20. a filter disc; 21. an activated carbon sheet; 22. a nonwoven fabric base layer; 23. electrostatically spinning a fibrous membrane layer; 24. a waterproof breathable film layer; 201. round hair piece.
Detailed Description
In order to make the aforementioned and other features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.
As shown in fig. 1-2, this embodiment provides a but washing plane gauze mask convenient to change filter element, including gauze mask main part 10 and filter element 20, gauze mask main part 10 is the cotton, the suture connection all around of gauze mask main part 10 has bordures, the left and right sides symmetry of gauze mask main part 10 is provided with the elasticity ear area. The arrangement of the wrapping edge and the elastic ear band can adopt a conventional structure, and the description is omitted. The nose bridge strip 12 is clamped at the position, corresponding to the nose, of the top of the mask main body 10, so that the sealing performance of the position is enhanced, and the mask main body can adapt to different nose types and sizes.
In the present embodiment, the inner surface of the mask body 10 is sewn and connected with a unidirectional moisture-guiding fabric layer 11, and a containing chamber is formed between the unidirectional moisture-guiding fabric layer 11 and the mask body 10, the upper and lower ends of the unidirectional moisture-guiding fabric layer 11 are respectively sewn and connected with the mask body 10, and sockets are respectively reserved on the left and right sides, preferably, the unidirectional moisture-guiding fabric layer 11 is a polyester-cover cotton double-layer knitted fabric, wherein polyester is used on the outer side for hydrophilic finishing, and cotton is used on the inner side for water-repellent finishing, namely, the outer polyester layer of the polyester-cotton double-layer knitted fabric is positioned at one side of the accommodating chamber, the inner cotton layer of the polyester-cotton double-layer knitted fabric is positioned at one side close to the mouth and the nose, good air permeability and breathing performance is guaranteed on the one hand through one-way wet fabric layer 11, and on the other hand makes the moisture that produces in wearing respiratory process permeate the dacron outer layer fast from cotton nexine, and one-way transmission index rank is high to keep the dry and comfortable of mouth and nose.
In this embodiment, filter element 20 can dismantle the setting in the accommodation chamber, specifically can adopt magic subsides or snap-fastener can dismantle the connection together: for example, a round hair piece 201 is sewn on one side of the filter 20 facing the mask body 10, and a bur piece is sewn on a position of the mask body 10 corresponding to the round hair piece 201, and the bur piece arranged on the mask body 10 is more convenient to clean compared with the round hair piece. Preferably, the upper and lower ends of the left and right sides of the filter sheet are provided with round hair pieces 201.
The filter sheet 20 of the present embodiment includes an activated carbon sheet 21, a non-woven fabric substrate 22 symmetrically adhered or sewn to the front and rear sides of the activated carbon sheet 21, an electrospun fiber membrane layer 23 respectively electrospun on one surface of the non-woven fabric substrate 22 close to the activated carbon sheet 21, and a waterproof breathable membrane layer 24 respectively adhered to the other surface of the non-woven fabric substrate 22. The non-woven fabric base layer 22 may be a spun-bonded non-woven fabric layer, a needle-punched non-woven fabric layer, or a spun-laced non-woven fabric layer, specifically, a bamboo charcoal fiber non-woven fabric layer, an anion nano non-woven fabric layer, or a nano silver ion non-woven fabric layer, which can effectively protect the electrostatic spinning fiber membrane layer 23 and perform the first filtering and antibacterial functions. The waterproof breathable film layer 24 is preferably a PE (polyethylene) biaxially oriented breathable film, so that the air permeability is good, and external moisture can be prevented from entering the electrostatic spinning fiber film layer 23 and the activated carbon sheet 21.
The electrospun fiber membrane layer 23 of this embodiment is made of polylactic acid-chitosan electrospinning solution, that is, polylactic acid and chitosan are blended and dissolved in an organic solvent, and then stirred and vacuum defoamed to obtain electrospinning solution, and then the electrospinning solution is spun by using the non-woven fabric base layer 22 as a collecting substrate to obtain the electrospun fiber membrane layer 23. Therefore, the present embodiment can utilize the advantages of small pore diameter and high porosity of the electrostatic spinning fiber membrane layer 23, and can effectively block PM2.5 particles from entering the human body, and at the same time, chitosan in the electrostatic spinning fiber membrane layer 23 can also have the antibacterial and bacteriostatic effects. The electrostatically spun fibrous membrane layer 23 is a known material.
The active carbon sheet 21 is arranged in the center of the filter sheet 20, countless fine pores are formed in the surface of the active carbon, and the diameter of micropores in the surface of the active carbon is mostly between 2 nm and 50nm, so that the active carbon also has strong adsorption capacity, and pollutants in the air are obviously reduced to enter the respiratory system of a wearer.
Therefore, the planar mask of the present embodiment is convenient to replace the filter 20, and the mask body 10 can be washed with water for multiple uses, thereby saving the cost; secondly, the inner surface of the mask main body 10 is sewed with a unidirectional moisture-conducting fabric layer 11, so that the air permeability and the breathing performance are ensured, and simultaneously, the water vapor generated in the wearing and breathing process can quickly permeate into the outer terylene layer from the inner cotton layer, thereby keeping the mouth and the nose dry and comfortable; thirdly, the filter 20 adopts the activated carbon sheet 21, the electrostatic spinning fiber membrane layer 23 and the non-woven fabric base layer 22, the air permeability and the respiratory performance are ensured, meanwhile, the whole plane mask is endowed with good antibacterial and pollutant filtering capabilities, in addition, the electrostatic spinning fiber membrane layer 23 and the activated carbon sheet 21 are adopted, physical ultrafiltration is utilized, the performance is kept longer compared with the decline defect of the electret melt-blown material, meanwhile, the other surface of the non-woven fabric base layer 22 is adhered with the waterproof air permeable membrane layer 24, and the waterproof air permeable membrane layer 24 is used for avoiding the influence of water vapor entering the electrostatic spinning fiber membrane layer 23 and the activated carbon sheet 21 on the filtration protection performance; fourthly, the multi-layer protection is formed by the multi-layer structure of the mask main body 10, the unidirectional moisture-conducting fabric layer 11 and the filter element 20, the sanitary protection capability is enhanced, pollutants in the air are effectively blocked, and the blocking performance of the mask to PM2.5 is excellent.
Having shown and described the fundamental principles and the principal features of the invention and its advantages, it will be understood by those skilled in the art that the present invention is not limited by the embodiments described above, which are merely illustrative of the principles of the invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the invention as defined by the appended claims and their equivalents.