Mask filtering layer combining pi film and melt-blown cloth

Abstract

The utility model provides a mask filter layer combining a pi film and melt-blown cloth, which relates to the technical field of masks and comprises a non-woven fabric layer. The upper end position of the non-woven fabric layer is in a corrugated design, the upper end position of the non-woven fabric layer is in press fit with the bottom position of the melt-blown fabric layer with the corrugated lower end, the top position of the melt-blown fabric layer is attached to the bottom position of the p film layer, the left side and the right side of the non-woven fabric layer are each connected with a covered edge in a pressing mode, and the upper position of each covered edge is connected with a hanging rope in a pressing mode. The non-woven fabric layer is provided with activated carbon particles and is provided with abundant micropores, so that the air permeability of a user in the wearing process is more convenient, activated carbon can form a filter layer, the filter layer has a strong adsorption function, and dust adsorption in the breathing process is more convenient. The problems that in the wearing process of an existing mask, breathability is not good, the breathing obstruction effect on a wearer is likely to be caused, and bacteria exist outside, and the bacteria filtering performance of the mask is not stable are solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of masks, and more specifically, it particularly relates to a mask filter layer combined with a PI film and a meltblown cloth. Background Art

[0002] A mask is a sanitary product, generally referring to an appliance worn over the mouth and nose to filter the air entering the mouth and nose, so as to block harmful gases, odors, and droplets from entering and leaving the mouth and nose of the wearer, and is made of gauze, paper, etc. Masks have a certain filtering effect on the air entering the lungs. Wearing a mask is very useful during the epidemic of respiratory infectious diseases and when working in a polluted environment such as dust.

[0003] Patent Application No. CN201720343637.X is a mask with a folded filter layer. The filter layer is folded horizontally and arranged longitudinally in sequence. The first layer and the last layer of the folded filter layer are arranged in the reverse direction. An air-permeable sheet is provided inside the folded filter layer. The air-permeable sheet is close to the folded end of the filter layer, and both sides of the folded end of the filter layer are integrally sealed. The utility model solves the problem of the small filtering area of a flat mask, has a simple structure, can effectively increase the effective filtering area of the mask, and thus increases the air permeability and service life.

[0004] Based on the retrieval of the above patent and the understanding of the application of existing mask filter layers: At present, the air permeability of masks during wearing is not good, which is likely to cause a breathing blockage effect on the wearer, and there are bacteria in the outside world, and the bacterial filtration of masks is not stable. Content of the Utility Model

[0005] In order to solve the above technical problems, the utility model provides a mask filter layer combined with a PI film and a meltblown cloth to solve the problems that the air permeability of existing masks during wearing is not good, which is likely to cause a breathing blockage effect on the wearer, and there are bacteria in the outside world, and the bacterial filtration of masks is not stable.

[0006] The purpose and efficacy of the mask filter layer combined with a PI film and a meltblown cloth of the utility model are achieved by the following specific technical means:

[0007] A mask filter layer combined with a PI film and a meltblown cloth includes a non-woven fabric layer; the upper end of the non-woven fabric layer is designed with corrugations, and the upper end of the non-woven fabric layer is pressed against the bottom position of the corrugated meltblown cloth layer at the lower end. The top position of the meltblown cloth layer is attached to the bottom position of the PI film layer. A binding edge is pressed on both the left and right sides of the non-woven fabric layer. A hanging rope is pressed on the upper position of each binding edge. A sleeve is sleeved on the outer side of each hanging rope. The specification of the PI film layer is 3 - 6 / M2, and the specification of the meltblown cloth layer is 20 - 40 g / M2.

[0008] According to an embodiment of the present utility model, the positions on both sides of the meltblown cloth layer and the pi film layer are respectively wrapped inside the edge, and the pi film layer contains 10% thermoplastic polymer fibers.

[0009] According to an embodiment of the present utility model, the non-woven fabric layer is provided with activated carbon particles and has abundant micropores.

[0010] Compared with the prior art, the present utility model has the following beneficial effects:

[0011] The pi film layer contains 10% thermoplastic polymer fibers. The PI nanofiber aerogel film of the pi film layer has a bacteria filtration efficiency of ≥99.7%. It mainly relies on physical interception and inherent static voltage to intercept oily and non-oily substances in all directions, and maintains the filtration efficiency without attenuation during use.

[0012] The non-woven fabric layer is provided with activated carbon particles and has abundant micropores, which is more convenient for the breathability of the user during wearing. And the activated carbon can form a filter layer with strong adsorption function, which is more convenient for adsorbing dust during breathing.

[0013] The meltblown cloth layer itself has the characteristics of loose structure and good anti-crease ability, which is convenient for the non-woven fabric layer and the pi film layer to reset. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a top view structural schematic diagram of a mask filter layer combining the pi film and the meltblown cloth of the present utility model.

[0015] Figure 2 It is a side view structural schematic diagram of a mask filter layer combining the pi film and the meltblown cloth of the present utility model.

[0016] Figure 3 It is a split side view structural schematic diagram of a mask filter layer combining the pi film and the meltblown cloth of the present utility model.

[0017] In the figure, the corresponding relationship between the component names and the drawing reference numbers is as follows:

[0018] 1. Non-woven fabric layer; 101. Edge; 102. Hanging rope; 103. Sleeve; 2. Meltblown cloth layer; 3. Pi film layer. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] In order to make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the following will clearly and completely describe the technical solutions of the embodiments of the present utility model in conjunction with the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are part of the embodiments of the present utility model, rather than all of the embodiments. Based on the described embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present utility model.

[0020] Unless otherwise defined, the technical terms or scientific terms used herein shall have the ordinary meaning as understood by those of ordinary skill in the art to which the present utility model pertains. The words such as "a", "an", or "the" used in the description and claims of the patent application of the present utility model do not indicate a limitation in quantity, but rather indicate the existence of at least one. Words such as "comprising" or "including" mean that the elements or objects appearing before this word cover the elements or objects listed after this word and their equivalents. "Connection" or "coupling" and other similar words are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Upper", "lower", "left", "right", etc. are only used to represent relative positional relationships, and when the absolute position of the object being described changes, the relative positional relationship may also change accordingly.

[0021] The following further describes in detail the embodiments of the present utility model in conjunction with the drawings and embodiments.

[0022] Embodiment 1:

[0023] As shown in Figure 1 to Figure 3 shown:

[0024] The present utility model provides a mask filter layer combined with a PI film and a meltblown cloth, including a non-woven fabric layer 1; the upper end position of the non-woven fabric layer 1 is designed with corrugations, and the upper end position of the non-woven fabric layer 1 is pressed against the bottom position of the corrugated meltblown cloth layer 2 at the lower end. The top position of the meltblown cloth layer 2 is attached to the bottom position of the PI film layer 3. A hemming 101 is pressed and connected to both the left and right sides of the non-woven fabric layer 1. A hanging rope 102 is pressed and connected to the upper position of each hemming 101. A sleeve 103 is sleeved on the outer side of each hanging rope 102. The specification of the PI film layer 3 is 3-6 g / M2, and the specification of the meltblown cloth layer 2 is 20-40 g / M2.

[0025] Wherein, both sides of the meltblown cloth layer 2 and the PI film layer 3 are respectively wrapped inside the hemming 101.

[0026] Among them, the PI film layer 3 contains 10% of thermoplastic polymer fibers. The bacterial filtration efficiency of the PI nanofiber aerogel film of the PI film layer 3 is ≥99.7%. It mainly relies on physical interception and inherent static voltage to intercept oily and non-oily substances in all directions, and maintains the filtration efficiency without attenuation during use.

[0027] Among them, the non-woven fabric layer 1 is provided with activated carbon particles and has rich micropores, which is more convenient for the breathability of the user during wearing. And the activated carbon can form a filter layer with strong adsorption function, which is more convenient for adsorbing dust during breathing.

[0028] During use:

[0029] The non-woven fabric layer 1 is integrally suspended below the face of the wearer through two hanging ropes 102. By combining the sliding of the sleeve 103 and the hanging rope 102, the position of the sleeve 103 on the hanging rope 102 is adjusted to make the position of the sleeve 103 fit the position of the wearer's ear root, avoiding the hanging rope 102 causing marks on the wearer's ear. And when removing the whole mask, the sliding of the sleeve 103 and the hanging rope 102 reduces the friction on the wearer's ear.

[0030] Although the present application has been described with reference to the above embodiments, those skilled in the art will understand that various changes can be made without departing from the concept and scope of the present application as defined by the appended claims. Although this specification contains many details of specific implementation manners, these should not be construed as limitations on the scope claimed by the present application, but rather as descriptions of features specific to particular embodiments. The scope of the present application is defined by the appended claims and their equivalents, and is not limited to the embodiments described above.

Claims

1. A mask filter layer combining a pi film and a meltblown cloth, characterized in that: The invention comprises a non-woven fabric layer (1); the upper end of the non-woven fabric layer (1) is of a corrugated design, and the upper end of the non-woven fabric layer (1) is pressed against the bottom of the corrugated meltblown fabric layer (2) at the lower end, the top of the meltblown fabric layer (2) is in contact with the bottom of the pi film layer (3), the left and right sides of the non-woven fabric layer (1) are pressed against a rim (101), the upper position of each rim (101) is pressed against a hanging rope (102), and the outer position of each hanging rope (102) is sleeved with a sleeve (103).

2. A mask filter layer combining a pi film and a meltblown cloth as claimed in claim 1, characterized in that: The specification of the pi film layer (3) is 3-6g / M2, and the specification of the meltblown cloth layer (2) is 20-40g / M2.

3. A mask filter layer combining a pi film and a meltblown cloth as claimed in claim 1, characterized in that: The meltblown cloth layer (2) and the PI film layer (3) are respectively coated on both sides at the inner position of the hem (101).

4. A mask filter layer combining a pi film and a meltblown cloth as claimed in claim 1, characterized in that: The non-woven fabric layer (1) is provided with activated carbon particles and has abundant micropores.

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