CN111616450A

CN111616450A - Non-medical nano-film filtering mask

Info

Publication number: CN111616450A
Application number: CN202010670463.4A
Authority: CN
Inventors: 张鹏飞
Original assignee: Harbin Feinuo Technology Co Ltd
Current assignee: Harbin Feinuo Technology Co Ltd
Priority date: 2020-07-13
Filing date: 2020-07-13
Publication date: 2020-09-04

Abstract

The invention discloses a non-medical nano-film filtering mask, relates to a non-medical mask, and particularly relates to a mask for filtering air by using a nano-film. The melt-blown cloth filter mask overcomes the defects that the melt-blown cloth filter mask in the prior art is lower in use reliability and durability and poorer in protection effect. The mask comprises a mask body, a left ear hanging belt and a right ear hanging belt, wherein the mask body consists of a nano film layer, an outer layer non-woven fabric and an inner layer non-woven fabric, the outer layer non-woven fabric and the inner layer non-woven fabric are fixed into a whole through a punching line, the nano film layer is attached to the outer surface of the outer layer non-woven fabric, and the thickness of the nano film layer is 0.2 mm; the nano-film layer is a PTFE film, the porosity of the PTFE film is more than 85%, 14 hundred million micropores are formed in each square centimeter, the pore diameter range is 0.02-15 mu m, the main material of the PTFE film is polytetrafluoroethylene resin, the content of the PTFE film is not less than 90%, and the balance of the PTFE film is impurities. The interception of the particles with the particle size of 0.3 micron can reach more than 99 percent.

Description

Non-medical nano-film filtering mask

Technical Field

The invention relates to a non-medical mask, in particular to a mask for filtering air by using a nano-film.

Background

The new coronavirus epidemic outbreak worldwide in 2020 causes great inconvenience for people's life, one of which is that ordinary citizens must wear masks when going out, and the epidemic prevention protection measures become more and more normal measures. The common disposable mask is roughly divided into three layers, wherein the inner surface layer and the outer surface layer are both non-woven fabrics, the middle layer is melt-blown fabric, and the melt-blown fabric is utilized to filter air. The melt-blown fabric is treated by an electret process to generate an electrostatic effect, and particles can be adsorbed and intercepted. However, the mask of the electrostatic adsorption type has a disadvantage that the mask is not always in a state of being saturated with electric charges after static electricity is added. In the production, packaging, delivery and transportation of the mask, and then the mask is opened and used by a consumer, the static content in the non-woven fabric layer can be gradually reduced in each link, and the reduction of static inevitably leads to the reduction of the protective efficiency of the melt-blown non-woven fabric mask. In addition, as the wearing time increases (e.g., after one to two hours), the mask becomes damp due to moisture in the wearer's breath, the electrostatic adsorption capacity thereof is reduced, and the isolation effect gradually deteriorates. Therefore, the melt-blown cloth filter mask has lower use reliability and durability and poorer protection effect.

Disclosure of Invention

The invention provides a non-medical nano-film filter mask, which aims to overcome the defects of low use reliability, low durability and poor protection effect of a melt-blown cloth filter mask in the prior art.

The mask comprises a mask body 1, a left ear hanging belt 2 and a right ear hanging belt 3, wherein the mask body 1 consists of a nano film layer 1-1, an outer layer non-woven fabric 1-2 and an inner layer non-woven fabric, the outer layer non-woven fabric 1-2 and the inner layer non-woven fabric are fixed into a whole through a punching line 5, the nano film layer 1-1 is attached to the outer surface of the outer layer non-woven fabric 1-2, and the thickness of the nano film layer 1-1 is 0.2 mm; the nano-film layer 1-1 is a PTFE film, the PTFE film has a fibril microporous structure, the porosity is more than 85%, 14 hundred million micropores are formed in each square centimeter, the pore diameter range is 0.02-15 mu m, the main material of the PTFE film is polytetrafluoroethylene resin, the content is not lower than 90%, and the balance is impurities.

As the further optimization of the technical scheme, the nose bridge-sticking mask further comprises a nose bridge-sticking plastic strip 4, wherein the nose bridge-sticking plastic strip 4 is arranged at the upper edge of the mask body 1 between the outer-layer non-woven fabric 1-2 and the inner-layer non-woven fabric.

As the further optimization of the technical scheme, a plurality of laminated folds 6 are arranged on the mask body 1.

As a further optimization of the technical scheme, fruity essence powder particles are mixed between the outer non-woven fabric 1-2 and the inner non-woven fabric.

The mask has the beneficial effects that the mask is mainly generated by a nano film layer structure, the reliability and the durability of the filtering function of the mask are improved by using the nano film layer structure, the protection effect of the mask is improved, and the specific advantages are detailed as follows:

1. the method is characterized in that the method intercepts the particles by physical action, and intercepts the particles of 0.3 micron by more than 99 percent, and can be repeatedly used for more than 10 times through simple high-temperature water treatment and alcohol disinfection.

2. The diameter of the fiber of the film is only 100-200 nm, the pore size distribution is in the nanometer level, even if the film is a microorganism such as virus, bacteria and the like, the film can be filtered, and the filtering effect on PM2.5 is better. PM2.5 is the particle with the diameter distributed at 2500 nm and is larger than the pore diameter.

3. Polytetrafluoroethylene gauze mask membrane belongs to pure physics nature and blocks, do not rely on static, when the user breathes in, the aperture of 100 to 200 nanometers can pass through physical screening effect PM2.5 to PM0.3, the separation is on the gauze mask top layer, with the help of the superstrong self-lubricating characteristic of polytetrafluoroethylene material, exhale every time, all can be backward will be attached to in the particulate matter on gauze mask top layer pushes back the environment to go, so relapse, do not rely on electrostatic absorption, effectual PM2.5 safeguard effect has been reached.

Drawings

FIG. 1 is a schematic structural diagram of the present invention. FIG. 2 is a schematic view of the connection structure of the nano-film layer 1-1 and the outer layer non-woven fabric 1-2.

Detailed Description

The first embodiment is as follows:

the embodiment is described below with reference to fig. 1 and 2, and includes a mask body 1, a left ear-hanging belt 2 and a right ear-hanging belt 3, the mask body 1 is composed of a nano-film layer 1-1, an outer layer non-woven fabric 1-2 and an inner layer non-woven fabric, the nano-film layer 1-1 is attached to the outer surface of the outer layer non-woven fabric 1-2, and the thickness of the nano-film layer 1-1 is 0.2 mm. The outer layer non-woven fabric 1-2 and the inner layer non-woven fabric are fixed into a whole through a punching line 5.

The nano-film layer is a PTFE film which has a fibril microporous structure with a porosity of more than 85 percent, 14 hundred million micropores per square centimeter and a pore diameter range of 0.02-15 mu m.

The PTFE membrane technology is already used in the fields of clothing membranes, air filtering membranes, air purifying membranes and the like, but is not applied to the field of mask manufacturing at present. In the embodiment, the fabric base material of the PTFE membrane material is outer-layer non-woven fabric 1-1, the main material of the coating is polytetrafluoroethylene resin, the content is not lower than 90%, and the balance is impurities.

The second embodiment is as follows:

the present embodiment is described below with reference to fig. 1, and further described in the present embodiment, the present embodiment further includes a nose bridge plastic strip 4, and the nose bridge plastic strip 4 is disposed at the upper edge of the mask body 1 between the outer layer nonwoven fabric 1-2 and the inner layer nonwoven fabric. The nose bridge plastic strip 4 is used for enabling the mask body 1 to be attached to the nose, and air leakage from the nose bridge is avoided.

The rest is the same as the first embodiment.

The third concrete implementation mode:

in the following, the present embodiment will be described with reference to fig. 1, and in the present embodiment, a plurality of laminated pleats 6 are provided in the mask body 1. The using area of the mask body 1 is increased.

The rest is the same as the first embodiment.

The fourth concrete implementation mode:

in the first embodiment, fruit-flavored essence powder particles are sandwiched between the outer non-woven fabric 1-2 and the inner non-woven fabric, so that a user can breathe favorite fragrance, and the adaptability to a mask wearing process is improved. The specific mode can be that a layer of medical gauze is added between the outer layer non-woven fabric 1-2 and the inner layer non-woven fabric, and the gauze is soaked with the fruity essence solution and then dried, so that fruity essence powder particles are carried. Thus, the lasting fragrance is maintained, and the gas passing is not interfered and influenced.

The rest is the same as the first embodiment.

It is to be understood that the above description is not intended to limit the present invention, and the present invention is not limited to the above examples, and that various changes, modifications, additions and substitutions which are within the spirit and scope of the present invention and which may be made by those skilled in the art are also within the scope of the present invention.

Claims

1. A non-medical nano-membrane filtering mask comprises a mask body (1), a left ear hanging belt (2) and a right ear hanging belt (3), and is characterized in that the mask body (1) consists of a nano-membrane layer (1-1), an outer non-woven fabric (1-2) and an inner non-woven fabric, the outer non-woven fabric (1-2) and the inner non-woven fabric are fixed into a whole through a punching line (5), the nano-membrane layer (1-1) is attached to the outer surface of the outer non-woven fabric (1-2), and the thickness of the nano-membrane layer (1-1) is 0.2 mm;

the nano-film layer (1-1) is a PTFE film, the PTFE film has a fibril microporous structure, the porosity is more than 85%, 14 hundred million micropores are formed in each square centimeter, the pore diameter range is 0.02-15 mu m, the main material of the PTFE film is polytetrafluoroethylene resin, the content is not less than 90%, and the balance is impurities.

2. The non-medical nano-membrane filtration mask according to claim 1, further comprising a nose bridge plastic strip (4), wherein the nose bridge plastic strip (4) is disposed at the upper edge of the mask body (1) between the outer non-woven fabric (1-2) and the inner non-woven fabric.

3. The non-medical nano-membrane filtration mask according to claim 1, wherein the mask body (1) is provided with a plurality of laminated pleats (6).

4. The non-medical nano-membrane filtration mask according to claim 1, wherein fruit-flavored essence powder particles are sandwiched between the outer non-woven fabric (1-2) and the inner non-woven fabric.