Mask capable of increasing filtering area

Abstract

The utility model relates to the technical field of masks, and discloses a mask capable of increasing the filtering area, which comprises a plurality of layers of filtering bodies, at least one layer of filtering body is provided with folding ripples, and the folding direction of the folding ripples is longitudinally bent and folded. The folding ripples are longitudinally arranged on the mask, so that the folding frequency is reduced, the processing time is saved, and the cost is saved. Besides, by means of longitudinal bending, we only need to widen the width of the material, the length of the coiled material is not sacrificed in production, but the same bending effect can be obtained, more masks can be produced, and defective products at material joint positions caused by frequent replacement of the coiled material are avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of masks, in particular to a mask with increased filtering area. Background Art

[0002] A mask is a sanitary product, generally worn on the mouth and nose to filter the air entering the mouth and nose, so as to block harmful gases, odors, droplets, viruses and other substances.

[0003] There is a certain relationship between the filter area and the filter effect of the mask. The filter effect of the mask mainly depends on the performance of the filter material, including filter efficiency, resistance, dust holding capacity and other factors. The filter area is one of the important factors affecting the overall performance of the mask.

[0004] Generally speaking, the larger the filter area of ​​the mask, the better the filtering effect may be. This is because a larger filter area can provide more filter material to capture particulate matter and microorganisms in the air. The prior art "CN 219894744 U. A three-fold filter mask" discloses that the mask uses the filter element to be folded in the horizontal direction, because the horizontally folded filter element improves the longitudinal bending resistance of the filter element, which can better overcome the problem of the middle filter layer collapsing and being unable to be fixed when worn.

[0005] Since the horizontal length of masks is usually greater than the vertical length, if the filter element is manufactured by horizontal folding, the workload of horizontal folding is greater than that of vertical folding under the same folding spacing. The more folding times, the longer the manufacturing processing time and the corresponding cost are also higher. Therefore, the process needs to be optimized to reduce production costs.

[0006] Specifically, the material used to make masks is a roll. The characteristic of the roll is that it has a certain length. The longer the roll, the more products can be produced. Under the condition of the same length, horizontal bending requires sacrificing multiple lengths to complete the bending effect. The number of masks produced after bending the same length of material is two-thirds of that of the unbent material.

[0007] If longitudinal bending is used, we only need to widen the width of the material, and the length of the coil will not be sacrificed during production, but the same bending effect can be obtained, and more masks can be produced, avoiding the production of defective products at the material joint position caused by frequent coil changes. Utility Model Content

[0008] The purpose of the utility model is to provide a mask with an increased filtering area to solve the problems raised in the above-mentioned prior art.

[0009] In order to achieve the above-mentioned purpose of the utility model, the technical solution adopted by the utility model is: a mask with increased filtering area, comprising several layers of filtering bodies, at least one layer of the filtering bodies is provided with folded corrugations, and the bending direction of the folded corrugations is longitudinal bending and folding.

[0010] Preferably, the filter body having the folded corrugations is provided with a plurality of elastic threads located on the inner side or the outer side, and the elastic threads are arranged on the folded corrugations in a longitudinal or transverse direction.

[0011] Preferably, the folded corrugations are in a continuous V-shaped or U-shaped structure.

[0012] Preferably, the filter body is any one of nanofiber, non-woven fabric or melt-blown fabric.

[0013] Preferably, a wearing rope is provided on the filter body.

[0014] Preferably, a nose bridge strip is provided on the filter body.

[0015] The beneficial effects of the utility model are mainly reflected in that the mask reduces the number of folding times, saves processing time and saves costs by arranging folding corrugations longitudinally.

[0016] In addition, when using longitudinal bending, we only need to widen the width of the material, and the length of the coil will not be sacrificed during production, but the same bending effect can be obtained, and more masks can be produced, avoiding the production of defective products at the material joint position caused by frequent coil changes. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is the front view of the utility model;

[0018] Figure 2 It is a side view of the utility model;

[0019] Figure 3 The folded corrugated shape of the utility model Figure 1 ;

[0020] Figure 4 The folded corrugated shape of the utility model Figure 2 ;

[0021] Among them, 1. Filter body; 2. Folding corrugations; 3. Wearing rope; 4. Nose bridge strip. DETAILED DESCRIPTION

[0022] In order to make the objectives, technical solutions and advantages of the present application clearer, the technical solutions in the embodiments of the present application will be described in more detail below in conjunction with the drawings in the preferred embodiments of the present application.

[0023] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, or it can be an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0024] In the description of the present application, it should be understood that the terms "upper", "lower", "front", "back", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are orientations or positional relationships based on the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0025] In addition, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, for example, a process, method, system, product, or display comprising a series of steps or elements is not necessarily limited to those steps or elements explicitly listed, but may include other steps or elements not explicitly listed or inherent to such process, method, product, or display.

[0026] Embodiment 1

[0027] See also Figure 1-Figure 4 , a mask with increased filtering area, the mask includes but is not limited to the following application scenarios: can be used as medical protection, in medical environments such as hospitals, clinics, nursing homes and laboratories, the mask plays a role in preventing the spread of germs. Medical staff and patients wearing masks in these occasions can reduce the risk of respiratory droplet transmission, thereby ensuring the safety of medical work. Can be used as public health protection, in public places such as public transportation, supermarkets, shopping malls, schools, etc., wearing a mask can prevent the spread of pollutants such as bacteria and viruses. Can be used as industrial protection, in industrial places, because there may be a large amount of dust, toxic gases and other harmful substances in the industrial environment, wearing this mask can effectively prevent these harmful substances from entering the respiratory tract and protect the health of workers. Can be used as special weather protection, under special weather conditions, such as haze, sandstorms, typhoons and other weather, the air quality may deteriorate, and this mask can help prevent the spread of harmful substances in the air.

[0028] In terms of type, the mask can be an ordinary gauze mask, a medical mask, an activated carbon mask, an N95 mask, a dust mask or an anti-fume mask. These types are all existing mask types and will not be repeated here.

[0029] In this embodiment, the mask includes a plurality of layers of filter bodies 1, wherein at least one layer of the filter bodies 1 is provided with folded corrugations 2, and the folding direction of the folded corrugations 2 is longitudinally bent and folded.

[0030] Under the same size of folding spacing, for example, the length and width are 10*5cm, the longitudinal distribution of the folded corrugations 2 can reduce the number of folding times and save costs; specifically, the folded corrugations 2 can be partially or fully covered on the filter body 1. Among them, the number of folded corrugations 2, the spacing between the peaks, and the height between the peaks and the troughs can be determined according to the required increase in the filtration area. Generally, the larger the filtration area required, the more folded corrugations 2, the shorter the spacing between the peaks, and the larger the height between the peaks and the troughs.

[0031] As a more specific implementation of this embodiment, the filter body 1 having the folded corrugations 2 is provided with a plurality of elastic threads located on the inner side or the outer side, and the elastic threads are arranged on the folded corrugations 2 in a longitudinal or transverse direction.

[0032] The addition of elastic threads allows the filter body 1 to be compressed. Under the same size, the compressed filter body 1 has more folds than the uncompressed filter body 1, which increases the filtering area. The mask can accommodate more dust or particles, improving the filtering effect.

[0033] Specifically, the elastic thread can be arranged on the filter body 1 by sewing and weaving, and the filter body 1 and the elastic thread can be bonded by glue, hot pressing or ultrasonic bonding.

[0034] Specifically, the elastic thread can be any one of polyester elastic thread, polyester elastic thread or nylon elastic thread. They are not only soft and strong, but also can be stretched and retracted during the sewing process without breaking easily, thus ensuring that the sewn elastic mask has excellent quality.

[0035] As a more specific implementation of this embodiment, the folded corrugation 2 is a continuous V-shaped or U-shaped structure. Of course, in actual situations, the folded corrugation 2 can also be an irregular or discontinuous V-shaped or U-shaped structure.

[0036] As a more specific implementation of this embodiment, the filter body 1 can be any one of cotton cloth, linen cloth, nanofiber, non-woven fabric or melt-blown cloth. For example, for scenes requiring efficient filtration of tiny particles, nanofiber, non-woven fabric or melt-blown fabric can be selected; for scenes requiring strong air permeability, cotton cloth or linen cloth can be selected.

[0037] As a more specific implementation of this embodiment, the filter body 1 is provided with a wearing rope 3, and the wearing rope 3 can be an ear-hanging wearing rope or a head-mounted wearing rope, which is suitable for two wearing scenarios. The former is more convenient for the user to wear, and the latter is tighter after being worn by the user and is not easy to fall off. The wearing rope 3 can be made of cotton. The cotton rope is soft and comfortable, has good air permeability, and is suitable for long-term wear. The wearing rope 3 can also be made of rubber band material. The rubber band rope has good elasticity, is convenient to adjust the tightness, and is suitable for various head shapes. The wearing rope 3 can also be made of polyester fiber material. The polyester fiber rope has excellent wear resistance and corrosion resistance, and is suitable for use in harsh environments. The wearing rope 3 can also be made of nylon material. The nylon rope has high strength and good wear resistance.

[0038] As a more specific implementation of this embodiment, the filter body 1 is provided with a nose bridge strip 4, which is mainly used to fix the position of the mask on both sides of the nose and ensure the sealing of the mask. The nose bridge strip can also be adjusted according to the individual's nose shape and facial contour to increase the comfort and fit of the mask. The nose bridge strip 4 can be made of any one of metal aluminum sheet, copper sheet, polyolefin polymer coated iron wire or film coated iron wire. The nose bridge strip made of metal aluminum sheet or copper sheet has good bending effect and low rebound rate. The nose bridge strip made of polyolefin polymer coated steel wire can be resistant to high temperature and corrosion, and can also increase strength and toughness, which is conducive to the production and processing of masks. The nose bridge strip made of plastic is relatively soft and easy to process.

[0039] In summary, compared with existing masks, the mask has a reduced number of folding times, thereby saving the cost of the folding process. In terms of the same size of the outer dimensions, since elastic threads are added to the folded corrugations 2 on the filter body 1 and stretched, its filtering area can be greatly increased, and it can accommodate more dust and particulate matter.

[0040] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. The patent protection scope of the present invention shall be based on the claims. All equivalent structural changes made using the description and drawings of the present invention shall be included in the protection scope of the present invention.

Claims

1. A mask with increased filtering area, comprising several layers of filtering bodies, at least one of which is provided with folded corrugations, characterized in that: The bending direction of the folded corrugation is longitudinal bending and folding.

2. A mask with increased filtration area according to claim 1, characterized in that: A plurality of elastic threads are arranged on the inner side or the outer side of the filter body with the folded corrugations, and the elastic threads are arranged on the folded corrugations in a longitudinal direction or a transverse direction.

3. A mask with increased filtration area according to claim 1 or 2, characterized in that: The folded corrugations are in a continuous V-shaped or U-shaped structure.

4. A mask with increased filtration area according to claim 1 or 2, characterized in that: The filter body is any one of nanofiber, non-woven fabric or melt-blown fabric.

5. A mask with increased filtration area according to claim 1 or 2, characterized in that: A wearing rope is arranged on the filter body.

6. A mask with increased filtration area according to claim 1 or 2, characterized in that: A nose bridge strip is arranged on the filter body.

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