CN212185237U

CN212185237U - Anti-virus mask

Info

Publication number: CN212185237U
Application number: CN202020361146.XU
Authority: CN
Inventors: 梁振; 郑永立
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-03-20
Filing date: 2020-03-20
Publication date: 2020-12-22
Anticipated expiration: 2030-03-20

Abstract

The utility model provides an antivirus mask, include: the mask comprises a mask body and a mask body, wherein the mask body comprises a polytetrafluoroethylene film filtering layer; the face fitting positioning device is arranged at the middle upper part of the outer side of the mask main body; mask belt bodies arranged on two sides of the mask main body; the mask belt body is integrally connected with the mask main body or is connected with the mask main body through a connecting structure; the connecting structure is a hot-melting welding type structure or an adhesive type structure. Compared with the prior art, the anti-virus mask provided by the utility model is provided with the nano-scale filtering polytetrafluoroethylene film filtering layer, can ensure that impurities such as bacteria and the like can be completely intercepted, and has higher filtering efficiency than the common mask; meanwhile, the surface of the polytetrafluoroethylene film filtering layer is hydrophobic, and can be repeatedly utilized after surface dust is washed or reversely blown, so that bacteria are prevented from breeding, and the filtering performance is durable and stable; and the product has transparency as a whole, has no cover to the face, and ensures safety and convenient communication in special fields.

Description

Anti-virus mask

Technical Field

The utility model relates to a gauze mask technical field, more specifically say, relate to an anti-virus gauze mask.

Background

At present, the main body structures of medical masks and protective masks in the market are mostly three layers of non-woven fabrics, namely S-M-S structures, the masks comprise three layers, namely an inner layer non-woven fabric (moisture absorption layer), a middle layer electret treated melt-blown non-woven fabric (filter layer) and an outer layer waterproof treated non-woven fabric (water resistance layer); wherein, the core is a middle filter layer; on the other hand, the N95 mask capable of filtering 95% of fine particles sometimes needs to use an S-M-M-M-S structure, i.e. a three-layer melt-blown nonwoven fabric, which has improved filtering effect but poor air permeability. The melt-blown non-woven fabric is a membrane which is made of polypropylene with a high melt index and formed by laminating a plurality of criss-cross fibers in random directions, the diameter range of the fibers is 0.5-10 microns, the formed filter meshes are large, and bacteria and viruses with small volumes cannot be directly filtered, so that charges are essentially loaded on the melt-blown fabric, and flying foam or virus micro-particles containing the viruses are adsorbed on the surface by static electricity after approaching the melt-blown fabric and cannot permeate the melt-blown fabric. However, once the mask is wetted by water vapor (haar) or the charged layer is eliminated by the deposition of bacteria and viruses on the electrostatic layer, the filtering effect of the mask cannot be ensured; therefore, the common mask needs to be replaced every 4 hours at present and can not be used repeatedly.

In order to solve the technical problems, the prior art discloses that a filter layer made of other materials is adopted to replace melt-blown cloth so as to solve the problem of filtering viruses by means of static electricity; but the whole structure of the product is still a 3-layer structure, so that the process is complex, the cost is high, the mask is still thicker (the thickness of the melt-blown fabric of the surgical mask is about 150 microns, the thickness of the melt-blown fabric of the N95-grade mask is about 520 microns, and the thickness of the 3-layer mask adopting filter layers made of other materials is not obviously changed), the wearing is not suitable, the moisture is suffocated, and the sound permeability is low; meanwhile, the mask is still in a white opaque form, completely covers the mouth, the nose and part of the face, and is very unfavorable for face identification, deaf-mute communication, crime investigation and the like.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model aims at providing an anti-virus mask, which is a single-layer transparent mask with nano-scale filtration, can ensure complete interception of impurities such as bacteria, and the like, has hydrophobic surface, can be repeatedly used after washing or back blowing surface dust, and has lasting and stable filtration performance; and the whole product has transparency.

The utility model provides an antivirus mask, include:

the mask comprises a mask body and a mask body, wherein the mask body comprises a polytetrafluoroethylene film filtering layer;

the face fitting positioning device is arranged at the middle upper part of the outer side of the mask main body;

mask belt bodies arranged on two sides of the mask main body; the mask belt body is integrally connected with the mask main body or is connected with the mask main body through a connecting structure; the connecting structure is a hot-melting welding type structure or an adhesive type structure.

Preferably, the thickness of the polytetrafluoroethylene membrane filter layer is 0.02 mm-1 mm.

Preferably, the light transmittance of the polytetrafluoroethylene membrane filter layer is greater than or equal to 70%.

Preferably, the polytetrafluoroethylene membrane filter layer has a tensile strength of 20MPa or more and a mechanical elongation at break of 20% or more.

Preferably, the static contact angle of the polytetrafluoroethylene membrane filter layer is greater than or equal to 100 °.

Preferably, the mask body further comprises:

and the transparent non-woven fabric layer is arranged on the inner layer and/or the outer side of the polytetrafluoroethylene membrane filtering layer.

Preferably, the thickness of the transparent non-woven fabric layer is 0.01mm to 0.2 mm.

Preferably, the light transmittance of the transparent nonwoven fabric layer is greater than or equal to 80%.

Preferably, the mask belt body is an ear-covering belt body or a head-covering belt body.

Preferably, the mechanical breaking elongation of the mask belt body is more than or equal to 300%.

Additionally, the utility model provides an antivirus mask's gauze mask main part can set up to individual layer structure, compares current transparent gauze mask (utilize transparent material to play the physics to shelter from the effect to outside filth, is equivalent to the separation blade, reintroduces other materials that have the adsorption to filter the air, and the structure is complicated heavy, and is unfavorable for wearing), has better transparency, gas permeability, portability and extensibility.

Drawings

Fig. 1 is a schematic structural view of an anti-virus mask according to an embodiment of the present invention.

Detailed Description

The technical solution of the present invention will be described clearly and completely below with reference to the embodiments of the present invention, and it should be understood that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The utility model provides an antivirus mask, include:

In the utility model, the anti-virus mask comprises a mask main body, a face attaching and positioning device and a mask belt body; the mask main body is of a main body structure of the anti-virus mask, and can completely cover the nose and the mouth so as to play a functional role of the mask; the utility model has no special limitation on the specific shape of the mask main body, and can completely cover the nose and the mouth by adopting the shape which is well known by the technical personnel in the field; in addition, the utility model has no special limitation to the size of the mask main body, and the mask main body can be suitable for adults or children with the size known by the technical personnel in the field.

In the utility model, the mask main body comprises a polytetrafluoroethylene film filtering layer; on the basis, the mask body with a single-layer structure can be formed. The utility model discloses in, polytetrafluoroethylene membrane filtering layer is for having the millipore film, and its porosity is high, and the micropore distributes evenly and the aperture is little, can effectively produce the physical isolation to air contaminant and bacterial virus, does not rely on electrostatic filtration, still has good gas permeability simultaneously. In the utility model discloses, the thickness of polytetrafluoroethylene membrane filtering layer is preferred 0.02mm ~ 1mm, more preferably 0.02mm ~ 0.1 mm.

In the utility model, the light transmittance of the polytetrafluoroethylene film filtering layer is preferably greater than or equal to 70%, more preferably greater than or equal to 90%; the utility model adopts the above-mentioned transparent polytetrafluoroethylene film filtering layer, make the whole good transparency that has of anti-virus gauze mask does not hide the part to facial gauze mask and produces and shelter from, and it is convenient to guarantee safety and link up in special field.

In the utility model, the tensile strength of the polytetrafluoroethylene film filtering layer is preferably more than or equal to 20MPa, preferably more than or equal to 25 MPa; the mechanical elongation at break of the polytetrafluoroethylene film filtering layer is preferably more than or equal to 20 percent; on the basis of ensuring that the mechanical property meets the use requirement, the extensibility is good, and the wearing comfort can be improved.

In the utility model, the static contact angle of the polytetrafluoroethylene membrane filter layer is preferably more than or equal to 100 degrees, more preferably more than or equal to 110 degrees; the side group of the polytetrafluoroethylene film polymer structure is fluorine atom, and the fluorine atom is exposed on the outer layer of the material, so that the polytetrafluoroethylene film polymer structure has the characteristic of low surface energy, and meanwhile, the polytetrafluoroethylene film polymer structure is hydrophobic and oleophobic, and moisture and grease can not be largely remained on the mask for a long time, so that the breeding of bacteria can be effectively inhibited, the mask of the utility model can be worn for a long time, and the isolation protection efficiency is not reduced; meanwhile, fluorine atoms have a shielding protection effect on the main chain-C-C-of the polymer, so that the polymer has good water resistance, oil resistance, acid and alkali salt resistance and high temperature resistance, the performance stability of the whole structure is excellent, and the durability, the environmental protection performance and the economical efficiency of the product are improved.

The utility model discloses in, the gauze mask main part preferably still includes:

and the transparent non-woven fabric layer is arranged on the inner layer and/or the outer side of the polytetrafluoroethylene membrane filtering layer. The utility model discloses in, transparent non-woven fabrics layer mainly plays the effect of supporting, the above-mentioned polytetrafluoroethylene film filtering layer of protection, right the functional influence of polytetrafluoroethylene film filtering layer is little to do not basically influence the transparency of gauze mask main part. The utility model discloses in, transparent non-woven fabrics layer can set up polytetrafluoroethylene film filtering layer internal layer forms bilayer structure's gauze mask main part, or sets up polytetrafluoroethylene film filtering layer external layer forms bilayer structure's gauze mask main part, or sets up simultaneously polytetrafluoroethylene film filtering layer internal layer and external gauze mask main part that forms three layer construction.

In the present invention, the thickness of the transparent non-woven fabric layer is preferably 0.01mm to 0.2mm, and more preferably 0.08mm to 0.15 mm.

In the utility model, the light transmittance of the transparent non-woven fabric layer is preferably more than or equal to 80%; the utility model discloses increase the setting on transparent non-woven fabrics layer on the basis of above-mentioned transparent polytetrafluoroethylene film filtering layer, still can make the whole better transparency that has of anti-virus gauze mask does not shelter from facial gauze mask cover part production, and it is convenient to guarantee safety and link up in special field.

The utility model discloses in, facial laminating positioner sets up upper portion in the gauze mask main part outside can effectively laminate facial profile to play the positioning action.

The utility model discloses in, the gauze mask area body sets up gauze mask main part both sides play the fixed action. In the utility model, the mechanical elongation at break of the gauze mask belt body is preferably more than or equal to 300%; has good scalability and can be repeatedly stretched for use. In the present invention, the mask belt body is preferably an ear-covering type belt body or a head-covering type belt body, and more preferably an ear-covering type belt body.

In the utility model, the mask belt body is integrally connected with the mask main body, or is connected with the mask main body through a connecting structure, preferably is connected with the mask main body through a connecting structure; the connecting structure is a hot-melting welding structure or an adhesive structure, and is preferably a hot-melting welding structure. The utility model discloses in, the gauze mask area body with the integrative mode accessible polytetrafluoroethylene that links to each other of gauze mask main part carries out the processing that obtains gauze mask area body structure and realizes when shaping polytetrafluoroethylene film filtering layer.

The connecting structure is a hot-melting welding type structure or an adhesive type structure.

The utility model provides an antivirus mask has following beneficial effect:

(1) high filtration efficiency: the mask main body has high filtering efficiency, and can meet the filtering efficiency grade requirements of a sub-efficient, high-efficient and super-efficient air filter;

(2) high PF value (PF value indicates an index of the filtration efficiency balanced with pressure loss, the larger PF value indicates the better filtration effect): compared with filter layers made of other materials, the polytetrafluoroethylene film filter layer has a higher PF value and good filtering performance;

(3) intercepting dust particles under the condition of high wind speed: the polytetrafluoroethylene film filtering layer has small aperture and stable micropore structure after high-temperature heat setting treatment, so that dust particles can be effectively intercepted at high wind speed;

(4) can be repeatedly used: the polytetrafluoroethylene film filtering layer has strong hydrophobicity, low surface energy and good non-adhesion, accumulated dust is easily removed through mechanical vibration or wiping, facial grease and oral moisture are not easily adsorbed, bacteria are effectively prevented from breeding, in addition, the performance can be restored through simple flushing and wiping by water or alcohol, the polytetrafluoroethylene film filtering layer is repeatedly used, and the service life is greatly prolonged;

(5) the stability is high: the utility model adopts the mask main body comprising the polytetrafluoroethylene film filtering layer, utilizes the nano-fiber to form micro-aperture for physical interception, and has the advantages of acid-base salt resistance, water resistance and oil resistance, very stable filtering performance, strong weather resistance and long quality guarantee period;

(6) high sound permeability: the polytetrafluoroethylene film filtering layer has excellent sound transmission capacity, does not weaken the intensity of sound, and can still smoothly communicate after the mask is worn.

To further illustrate the present invention, the following examples are given in detail. The embodiment of the utility model provides an antivirus mask's schematic structure is shown in fig. 1, wherein, 1 is the mask main part, 2 is facial laminating positioner, 3 is the hot melt welding formula structure, 4 is the mask area body.

Example 1

The mask main body (1) can completely cover the nose and the mouth, is a single-layer polytetrafluoroethylene film filtering layer, has the thickness of 0.03mm and the light transmittance of 93 percent, and does not shield the face; the tensile strength is 30MPa, the mechanical elongation at break is 23 percent, and the static contact angle is 115 degrees;

the face attaching and positioning device (2) can effectively attach the face contour and has a positioning effect;

the mask belt body (4) is a sleeve ear type belt body, the mechanical breaking elongation is 320%, and the mask belt body is connected with the mask main body (1) through a hot melting welding type structure (3).

Example 2

The mask main body (1) can completely cover the nose and the mouth, is of a double-layer structure and comprises a polytetrafluoroethylene film filtering layer and a transparent non-woven fabric layer arranged on the inner layer of the polytetrafluoroethylene film filtering layer; the thickness of the polytetrafluoroethylene film filtering layer is 0.02mm, the light transmittance is 95%, the tensile strength is 30MPa, the mechanical elongation at break is 20%, and the static contact angle is 113 degrees; the thickness of the transparent non-woven fabric layer is 0.1mm, and the light transmittance is 86%; the whole mask main body (1) does not shield the face;

the mask belt body (4) is a sleeve ear type belt body, the mechanical elongation at break is 300 percent, and the mask belt body is connected with the mask main body (1) through a hot melting welding type structure (3).

Example 3

The mask main body (1) can completely cover the nose and the mouth and is of a three-layer structure and comprises a polytetrafluoroethylene film filtering layer, a first transparent non-woven fabric layer arranged on the inner layer of the polytetrafluoroethylene film filtering layer and a second transparent non-woven fabric layer arranged on the outer layer of the polytetrafluoroethylene film filtering layer; the thickness of the polytetrafluoroethylene film filtering layer is 0.07mm, the light transmittance is 86%, the tensile strength is 29MPa, the mechanical elongation at break is 20%, and the static contact angle is 116 degrees; the thickness of the first transparent non-woven fabric layer is 0.12mm, and the light transmittance is 83%; the thickness of the second transparent non-woven fabric layer is 0.08mm, and the light transmittance is 88%; the whole mask main body (1) does not shield the face;

the mask belt body (4) is a sleeve ear type belt body, the mechanical breaking elongation is 350 percent, and the mask belt body is connected with the mask main body (1) through an adhesive type structure (3).

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An anti-virus mask, comprising:

mask belt bodies arranged on two sides of the mask main body; the mask belt body is integrally connected with the mask main body or is connected with the mask main body through a connecting structure; the connecting structure is a hot-melting welding type structure or an adhesive type structure;

the mask body further comprises:

2. The anti-virus mask according to claim 1, wherein the polytetrafluoroethylene membrane filter layer has a thickness of 0.02mm to 1 mm.

3. The anti-virus mask according to claim 1, wherein the light transmittance of the teflon membrane filter layer is 70% or more.

4. The anti-virus mask according to claim 1, wherein the polytetrafluoroethylene membrane filter layer has a tensile strength of 20MPa or more and a mechanical elongation at break of 20% or more.

5. The anti-virus mask of claim 1 wherein said teflon membrane filter layer has a static contact angle of 100 ° or greater.

6. The anti-virus mask according to claim 1, wherein the thickness of the transparent non-woven fabric layer is 0.01mm to 0.2 mm.

7. The anti-virus mask according to claim 6, wherein the light transmittance of the transparent non-woven fabric layer is 80% or more.

8. The anti-virus mask of claim 1 wherein said mask strap is an ear-on strap or a head-on strap.

9. The anti-virus mask of claim 1 wherein said mask strap has a mechanical elongation at break of 300% or greater.