CN111296927A

CN111296927A - Mask with PTFE filter membrane

Info

Publication number: CN111296927A
Application number: CN202010114402.XA
Authority: CN
Inventors: 杜广新
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-02-25
Filing date: 2020-02-25
Publication date: 2020-06-19

Abstract

The invention discloses a mask with a PTFE filter membrane, which comprises: a mask body and a fixing band; the mask body comprises an outer protective layer, an inner protective layer and a PTFE filter membrane layer; the PTFE filter membrane layer is arranged between the outer protective layer and the inner protective layer. The invention can improve the filtering efficiency and reduce the breathing resistance.

Description

Mask with PTFE filter membrane

Technical Field

The invention belongs to the technical field of medical treatment and health, and particularly relates to a mask with a PTFE filter membrane.

Background

The mask is a sanitary article which is worn at the mouth and nose part and used for filtering air entering the mouth and nose so as to prevent harmful gas and spray from entering and exiting the mouth and nose of a wearer. When respiratory infectious diseases are epidemic or in an environment with serious dust pollution, the mask can effectively protect the body health of a wearer. The existing mask is generally made by sandwiching melt-blown non-woven fabrics between two non-woven fabric surface layers. The mask structure realizes the interception and electrostatic adsorption of particles through the fibers of the melt-blown non-woven fabric. The problem of this kind of gauze mask is can only through reducing material space promotion filtration efficiency, and respiratory resistance is great simultaneously, wears easily uncomfortable for a long time. Therefore, how to design a novel mask to overcome the above problems is a direction of research needed by those skilled in the art.

Disclosure of Invention

The invention aims to provide a mask with a PTFE filter membrane, which can improve the filtration efficiency and reduce the respiratory resistance.

The technical scheme is as follows:

a mask with a PTFE filter, comprising: a mask body and a fixing band; the mask body comprises an outer protective layer, an inner protective layer and a PTFE filter membrane layer; the PTFE filter membrane layer is arranged between the outer protective layer and the inner protective layer.

By adopting the technical scheme: the PTFE filter membrane layer is used as a filter layer, and the mask is prepared by compounding the PTFE filter membrane with other fabrics such as face, terylene, needle cotton and the like. As the PTFE filter membrane can maximally reach the water molecules with the blocking diameter of 0.4 nm, the filtering and protecting capability can be further improved compared with the melt-blown fabric material adopted in the prior art. Meanwhile, the friction resistance between the PTFER material and air flow is small, so that the PTFER material has low breathing resistance while ensuring high-efficiency filtration. Can effectively reduce the discomfort caused by long-time wearing of the user.

Preferably, in the mask with a PTFE filter, the mask further comprises: the mask body is a convex curved surface protruding outwards.

By adopting the technical scheme: increase the cover of the gauze mask body when using, reduce the contact of human mouth skin and the gauze mask body, promoted user's the experience of wearing.

More preferably, in the mask with a PTFE filter, the mask further comprises: a liquid absorption pad is fixed on the inner protection layer and is arranged at the position opposite to the mouth of the wearer.

By adopting the technical scheme: if a wearer sneezes, sneeze droplets are absorbed by the liquid absorption pad first, so that the problem that the breathing of a human body is not smooth when the human body inhales through the nasal cavity due to the fact that the PTFE filter membrane layer is covered by droplets of the droplets after the droplets infiltrate the inner protective layer and then spread out is avoided. Simultaneously, because the gauze mask body is outside bellied convex curved surface, consequently can guarantee that the pad of inhaling does not directly contact with human mouth, promote and wear the experience.

More preferably, the mask with a PTFE filter is characterized in that: the outer protective layer is made of plant antibacterial fibers, hot-melt fibers and viscose fibers.

By adopting the technical scheme: the antibacterial effect of the mask is improved by the plant antibacterial fiber component in the outer protective layer.

More preferably, in the mask with a PTFE filter, the mask further includes: the inner protective layer is made of non-woven fabrics.

More preferably, in the mask with a PTFE filter, the mask further includes: the plant antibacterial fiber is prepared by blending and spinning plant extracts and viscose spinning solution.

More preferably, in the mask with a PTFE filter, the mask further includes: the outer edges of the outer protective layer, the PTFE filter membrane layer and the inner protective layer are fixed into a whole through PUR hot melt adhesive. The fixing band is composed of two elastic bands, and a Velcro female surface and a Velcro male surface are respectively arranged on the two elastic bands.

Compared with the prior art, the invention has simple structure and is easy to realize. The filtering efficiency can be improved and the breathing resistance can be reduced.

Drawings

The invention will be described in further detail with reference to the following detailed description and accompanying drawings:

FIG. 1 is a schematic structural view of example 1;

fig. 2 is a schematic view of a layered cross-sectional structure of the mask body in example 1.

The correspondence between each reference numeral and the part name is as follows:

1. a mask body; 2. fixing belts; 11. an outer protective layer; 12. an inner protective layer; 13. a PTFE filter membrane layer; 14. a liquid absorption pad; 31. magic paste on the shade; 32. the magic is pasted on the sunny side.

Detailed Description

In order to more clearly illustrate the technical solution of the present invention, the following will be further described with reference to various embodiments.

Example 1:

a mask with a PTFE filter, comprising: the mask body 1 and the fixing band 2.

Wherein, the mask body 1 is integrally a convex curved surface protruding outwards. The mask body 1 comprises an outer protective layer 11, an inner protective layer 12, a PTFE filter membrane layer 13 and a liquid absorption pad 14. The outer protective layer 11 is located on the outermost side and is made of plant antibacterial fibers, hot-melt fibers and viscose fibers. The plant antibacterial fiber is prepared by blending and spinning radix isatidis extract and viscose spinning solution. The PTFE filter membrane layer 13 is disposed between the outer protective layer 11 and the inner protective layer 12. The inner protective layer 12 is made of nonwoven fabric. The liquid absorption pad 14 is fixed on one side of the inner protection layer 12 facing the human body and is opposite to the mouth. In this example: the absorbent pad 14 is a removable component that facilitates replacement after a period of use. The outer edges of the outer protection layer 11, the PTFE filter membrane layer 13 and the inner protection layer 12 are fixed into a whole through PUR hot melt adhesive. The fixing belt 2 adopts two elastic belts which are symmetrically arranged at the left end and the right end of the mask body 1. The two elastic belts are respectively provided with a magic tape female surface 31 and a magic tape male surface 32 which correspond to each other.

In practice: the preparation method of the plant antibacterial fiber comprises the following steps:

s1: adding the plant antibacterial agent into purified water according to a ratio, and fully stirring to form an antibacterial agent solution for later use;

s2: bamboo pulp or cotton pulp is used as a raw material, and viscose is prepared by dipping, squeezing, crushing, ageing, yellowing and dissolving;

s3: adding the antibacterial agent solution obtained in the step S1 into the viscose solution obtained in the step S2, and uniformly stirring to obtain a viscose spinning solution;

s4: introducing the viscose spinning solution obtained in the step S3 into a coagulating bath for spinning and forming, and obtaining plant antibacterial fiber filaments through a drawing process;

s5: and (3) mixing the plant antibacterial fiber filaments obtained in the step (S4) with the mixed fibers, opening by an opener, carding into a web by a carding machine, and carrying out spunlace reinforcement to form a uniform fiber layer, wherein the fiber layer is an outer protective layer.

The above description is only an embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. The protection scope of the present invention is subject to the protection scope of the claims.

Claims

1. The utility model provides a take gauze mask of PTFE filter membrane which characterized in that includes: a mask body (1) and a fixing band (2); the mask body (1) comprises an outer protective layer (11), an inner protective layer (12) and a PTFE filter membrane layer (13); the PTFE filter membrane layer (13) is arranged between the outer protective layer (11) and the inner protective layer (12).

2. A mask with a PTFE filter according to claim 1, wherein: the mask body (1) is a convex curved surface protruding outwards.

3. A mask with a PTFE filter according to claim 2, wherein: a liquid absorption pad (14) is fixed on the inner protection layer (12).

4. A mask with a PTFE filter according to claim 3, wherein: the outer protective layer (11) is made of plant antibacterial fibers, hot-melt fibers and viscose fibers.

5. A mask with a PTFE filter according to claim 4, wherein: the plant antibacterial fiber is prepared by blending and spinning plant extracts and viscose spinning solution.

6. A mask with a PTFE filter according to claim 5, wherein: the inner protective layer (12) is made of non-woven fabric.

7. A mask with a PTFE filter according to claim 6, wherein: the outer edges of the outer protection layer (11), the PTFE filter membrane layer (13) and the inner protection layer (12) are fixed into a whole through PUR hot melt adhesive.