Long-life self-cleaning antibacterial mask

Abstract

The utility model provides a long-life self-cleaning antibacterial mask, which comprises a mask body, the mask body comprises an inner layer cloth, a middle stacking layer and an outer layer cloth, and the middle stacking layer comprises a fiber membrane compounded with a zeolite imidazole framework 8, a melt-blown cloth and a nylon cloth loaded with TiO2 which are sequentially arranged from inside to outside. The fiber membrane compounded with the zeolite imidazole skeleton-8 in the middle stacking layer on the mask body has high porosity and can contain more dust, so that the service life of the mask is greatly prolonged; meanwhile, Zn < 2 + > ions released by the ZIF-8 destroy microbial cell membranes to achieve antibiosis, a gap is reserved between the melt-blown cloth and the nylon cloth with the outer layer loaded with TiO2, electrostatic charges are generated through friction, the ZIF-8 provides a charge transfer channel to enhance the adsorption capacity, and TiO2 photocatalytically decomposes organic pollutants under sunlight to achieve self-cleaning; under the interaction of the middle stacked layers, the mask has the comprehensive advantages of being long in service life, self-cleaning and antibacterial.

Description

TECHNICAL FIELD

[0001] The utility model relates to long -life self -cleaning antibacterial gauze mask technical field especially is long -life self -cleaning antibacterial gauze mask. BACKGROUND

[0002] With the industrialization development, the air quality is not good in many areas, and the gauze mask has become a common household item, which can intercept dust pollution in the air, block harmful gases and harmful bacteria from entering the respiratory system. The gauze masks on the market have single function, and the ordinary surgical gauze mask can only prevent part of the bacteria, the activated carbon gauze mask can filter dust, but has no sterilization effect, and the service life of the N95 gauze mask is unsatisfactory. In order to increase the functionality of the gauze mask, some improvement schemes have been proposed in the prior art:

[0003] For example, a self-cleaning environmental protection gauze mask (201721305693.0) loads nano titanium dioxide on the outer cloth, which can prevent dust pollution and self-clean, but the nano TiO2 is too close to the inner cloth, and the safety is poor. A kind of anti-fog cleaning gauze mask (201721532713) increases silica gel particles in the gauze mask, which is dry air conducive to anti-fog, but has no enhancement on antibacterial property.

[0004] Therefore, in view of the deficiencies of the prior art, a long-life self-cleaning antibacterial gauze mask is proposed. CONTENT OF THE UTILITY MODEL

[0005] The utility model aims at providing a long-life self-cleaning antibacterial gauze mask, which adopts a novel gauze mask middle stacking layer design, so that the gauze mask has the characteristics of antibacterial property, self-cleaning property and long service life.

[0006] The utility model provides a long-life self-cleaning antibacterial gauze mask, including gauze mask body, the gauze mask body includes inner cloth, middle stacking layer and outer cloth, the middle stacking layer includes the fiber membrane that has zeolite imidazole skeleton-8 in proper order from inside to outside, meltblown cloth and the nylon cloth that has TiO2 and is loaded.

[0007] Further, the fiber membrane with zeolite imidazole skeleton-8 is adhered to the meltblown cloth.

[0008] Further, the nose clip on the gauze mask body is fixedly arranged at the top position between the outer cloth and the inner cloth through the first hot-pressing line.

[0009] Further, the inner cloth and the outer cloth are fixedly connected through the second hot-pressing line.

[0010] Further, the inner cloth is polypropylene non-woven fabric, and the outer cloth is activated carbon fiber cloth.

[0011] Further, the end of the mask belt on the mask body is glued and fixed on the outer cloth.

[0012] Further, a gap is left between the melt-blown cloth and the nylon cloth.

[0013] Further, the outer cloth is made of activated carbon material.

[0014] Further, the melt-blown cloth is made of PP material.

[0015] Further, the nose clip is made of memory alloy material.

[0016] The beneficial effects of the technical solution are: the fiber membrane with zeolite imidazole framework-8 (ZIF-8) compounded in the middle laminated layer on the mask body has high porosity, can accommodate more dust, and greatly increases the service life of the mask; meanwhile, the Zn 2+ ions released by ZIF-8 destroy the microbial cell membrane to achieve antibacterial effect, and TiO2 photocatalytically decomposes organic pollutants under sunlight to achieve self-cleaning; under the interaction of the middle laminated layer, the mask has the comprehensive advantages of long service life, self-cleaning, and antibacterial effect. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the specific embodiments of the present application or the technical solutions in the prior art, the drawings needed in the specific embodiments or the prior art description will be briefly introduced as follows. Obviously, the drawings in the following description are some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor.

[0018] Fig. 1 It is a schematic diagram of the overall structure of the present application.

[0019] Fig. 2 It is a cross-sectional view of the mask body in the present application.

[0020] Explanation of reference signs: 1-mask body, 2-nose clip, 3-mask belt, 4-first heat pressing line, 5-second heat pressing line, 6-middle laminated layer, 7-fiber membrane, 8-melt-blown cloth, 9-nylon cloth, 10-inner cloth, 11-outer cloth. DETAILED DESCRIPTION

[0021] The technical solutions of the present application will be described in detail below in combination with embodiments. Obviously, the described embodiments are only some embodiments of the present application, not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0022] In the description of the utility model, it needs to understand that the orientation or positional relation indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like are the orientation or positional relation based on the orientation or positional relation shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as indicating or implying that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model.

[0023] In addition, the terms "first" and "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first" and "second" can explicitly or implicitly include one or more of the features. In the description of the utility model, the meaning of "multiple" is two or more than two, unless otherwise specifically limited. In addition, the terms "mounting", "connection", "connection" should be broadly understood, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the communication between two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0024] Embodiment 1

[0025] As Figs. 1-2 shown, the utility model provides a long -life self -cleaning antibacterial gauze mask, including gauze mask body 1, gauze mask body 1 includes inner layer cloth 10, intermediate layer 6 and outer layer cloth 11, gauze mask body 1 is equipped with nose clamp 2 and gauze mask band 3, nose clamp 2 selects Cu-Al shape memory alloy material and makes, nose clamp 2 is fixedly arranged between the top position of outer layer cloth 11 and inner layer cloth 10 through first hot pressing line 4, and the end of two gauze mask bands 3 is symmetrically bonded to the both sides of outer layer cloth 11 through hot melt adhesive, and additional cross stitching is carried out at the connecting place to enhance the firmness, outer layer cloth 11 is made of activated carbon material, and inner layer cloth 10 is made of polypropylene material.

[0026] The inner layer cloth 10 is a polypropylene non-woven fabric with a thickness of 0.1-0.3mm, and the surface is treated for hydrophobicity to improve wearing comfort and prevent water vapor condensation; the outer layer cloth 11 is an activated carbon fiber cloth. The middle laminated layer 6 includes, from inside to outside, a fiber membrane 7 compounded with zeolite imidazole framework-8, a melt-blown cloth 8 made of PP material, and a nylon cloth 9 loaded with TiO2, which are sequentially arranged. The fiber membrane 7 compounded with ZIF-8 is prepared by electrospinning process. Zeolite imidazole framework-8 (ZIF-8) nanoparticles are mixed with polyacrylonitrile (PAN) solution (mass ratio 1:5), and the fiber membrane 7 is prepared by a spinning voltage of 15kV and a receiving distance of 15cm. The pore size of the fiber membrane 7 is 1-5μm, and the porosity is ≥80%. The PP melt-blown cloth 8(11) is adhered to the surface of the PP melt-blown cloth 8(25g / m 2 ) by a hot pressing process (temperature 120℃, pressure 0.5MPa) using the ZIF-8 fiber membrane 7 prepared by electrospinning. The nylon cloth 9 loaded with TiO2 is treated. Nano-TiO2 particles (particle size 20-50nm) are loaded on the surface of the nylon cloth 9 by immersion method, and the loading amount is 5-8g / m 2 , and then dried and cured at 80℃.

[0027] The middle laminated layer 6 is designed to sequentially stack the above three layers (ZIF-8 fiber membrane 7 inward, PP melt-blown cloth 8 in the middle, and TiO2 nylon cloth 9 outward), and fixed by ultrasonic welding at the edges, ensuring a gap of 0.2-0.5mm between the PP melt-blown cloth 8 and the TiO2 nylon cloth 9 to generate static electricity by friction. The outer layer cloth 11 is selected as a viscose-based activated carbon fiber cloth (gram weight 50g / m 2 ), which is fixed with the inner layer cloth 10 by a second hot pressing line 5 (temperature 110℃, pressure 0.3MPa) to form the basic structure of the mask body.

[0028] Regarding the antibacterial and adsorption functions: when worn, the ZIF-8 fiber membrane 7 of the middle laminated layer 6 intercepts PM2.5 and bacteria by electrostatic adsorption, and the metal ions (Zn 2+ ) released by ZIF-8 destroy the microbial cell membrane; the outer TiO2 generates a photocatalytic reaction under sunlight to decompose organic pollutants (such as grease and bacterial metabolites) attached to the surface of the mask.

[0029] Regarding the long-life design, the high-porosity structure of the middle laminated layer 6 can accommodate more particulate matter, delaying the clogging of the filter layer; the activated carbon outer layer cloth 11 can be regularly removed and exposed to sunlight to achieve self-cleaning through the photocatalytic action of TiO2, extending the service life of the mask to 7-10 days.

[0030] Finally, it should be noted that: the above embodiments are used to illustrate the technical solutions of the present application, but not limited to them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement to part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A long-life self-cleaning antibacterial mask, characterized by, The mask body comprises an inner layer cloth, an intermediate stacking layer and an outer layer cloth, and the intermediate stacking layer comprises, from inside to outside, a fiber membrane compounded with zeolite imidazole framework-8, a melt-blown cloth and a nylon cloth loaded with TiO2.

2. The long-life self-cleaning antibacterial mask according to claim 1, characterized in that, The fiber membrane compounded with zeolite imidazole framework-8 is adhered to the melt-blown cloth.

3. The long-life self-cleaning antibacterial mask according to claim 1, characterized in that, The nose clip on the mask body is fixedly arranged at a top position between the outer layer cloth and the inner layer cloth through a first heat pressing line.

4. The long-life self-cleaning antibacterial mask according to claim 1, characterized in that, The inner layer cloth and the outer layer cloth are fixedly connected through a second heat pressing line. 5.The long-life self-cleaning antibacterial mask according to claim 1, characterized in that, The inner layer cloth is a polypropylene non-woven fabric, and the outer layer cloth is an activated carbon fiber cloth. 6.The long-life self-cleaning antibacterial mask according to claim 1, wherein, The end of the mask band on the mask body is glued and fixed to the outer layer cloth.

7. The long-life self-cleaning antibacterial mask according to claim 2, characterized in that, A gap is left between the melt-blown cloth and the nylon cloth. 8.The long-life self-cleaning antibacterial mask according to claim 1, wherein, The outer layer cloth is made of an activated carbon material. 9.The long-life self-cleaning antibacterial mask according to claim 1, wherein, The melt-blown cloth is made of a PP material.

10. The long-life self-cleaning antibacterial mask according to claim 3, characterized in that, The nose clip is made of a memory alloy material.

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