Preparation method of composite-layer mask material

A composite layer and mask technology, which is applied in the manufacture of rayon, conjugated synthetic polymer rayon, clothing, etc., can solve the problems of low filtration efficiency, short filter saturation time, and inability to use for a long time for single-layer masks. Excellent filtration efficiency, increased capture capacity, and small average pore size

Inactive Publication Date: 2021-01-15
安徽灵春医用耗材有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Especially in special occasions, due to the relatively low filtration efficiency and short filter saturation time of single-layer masks, they cannot be used for a long time, and the masks need to be replaced continuously, which is not only time-consuming and laborious, but also wastes a lot of mask resources. Therefore, it is necessary to Improve it to improve the filtration efficiency of the mask, prolong the filter saturation time, and prolong the normal service life of the mask

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0063]A method for preparing a composite layer mask material, which is composed of a three-layer structure of a composite nonwoven fabric, a nanofiber film, and a composite nonwoven fabric; the composite nonwoven fabric is a polypropylene melt-blown nonwoven fabric; the nanofiber film It is obtained by spinning the spinning liquid by electrostatic spinning method. The preparation method of the polypropylene melt-blown nonwoven fabric is as follows: adding sepiolite powder, polyethylene wax, and polypropylene resin to a mixer in sequence, stirring and mixing to obtain a mixture; sepiolite powder, polyethylene wax, and polypropylene resin The mixing weight ratio is: 8:12:80;

[0064] The mixture is added to a screw extruder for melt extrusion, and then melt-blown spinning is carried out after being filtered by a melt filter and metered by a metering pump to obtain a nonwoven fabric. The spinning process is as follows: screw extruder temperature: 175°C in zone 1, 190°C in zone 2...

Embodiment 2

[0067] A method for preparing a composite layer mask material, which is composed of a three-layer structure of a composite nonwoven fabric, a nanofiber film, and a composite nonwoven fabric; the composite nonwoven fabric is a polypropylene melt-blown nonwoven fabric; the nanofiber film It is obtained by spinning the spinning liquid by electrostatic spinning method. The preparation method of the polypropylene melt-blown nonwoven fabric is as follows: adding sepiolite powder, polyethylene wax, and polypropylene resin to a mixer in sequence, stirring and mixing to obtain a mixture; sepiolite powder, polyethylene wax, and polypropylene resin The mixing weight ratio is: 8:12:80;

[0068] The mixture is added to a screw extruder for melt extrusion, and then melt-blown spinning is carried out after being filtered by a melt filter and metered by a metering pump to obtain a nonwoven fabric. Described spinning process is:

[0069] Screw extruder temperature: zone 1 175°C, zone 2 190°C...

Embodiment 3

[0072] A method for preparing a composite layer mask material, which is composed of a three-layer structure of a composite nonwoven fabric, a nanofiber film, and a composite nonwoven fabric; the composite nonwoven fabric is a polypropylene melt-blown nonwoven fabric; the nanofiber film It is obtained by spinning the spinning liquid by electrostatic spinning method. The preparation method of the polypropylene melt-blown nonwoven fabric is as follows: adding sepiolite powder, polyethylene wax, and polypropylene resin to a mixer in sequence, stirring and mixing to obtain a mixture; sepiolite powder, polyethylene wax, and polypropylene resin The mixing weight ratio is: 8:12:80;

[0073] The mixture is added to a screw extruder for melt extrusion, and then melt-blown spinning is carried out after being filtered by a melt filter and metered by a metering pump to obtain a nonwoven fabric. Described spinning process is:

[0074] Screw extruder temperature: zone 1 175°C, zone 2 190°C...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Abstract

The invention discloses a preparation method of a composite-layer mask material, and relates to the technical field of medical materials. The mask material is formed by compounding three layers of structures of a composite non-woven fabric, a nanofiber membrane and a composite non-woven fabric. The composite non-woven fabric is a polypropylene melt-blown non-woven fabric; the nanofiber membrane isobtained by spinning a spinning solution by adopting an electrostatic spinning method; and a mask with the composite structure prepared by the method is relatively uniform in pore size distribution,relatively small in average pore size and relatively good in filtering effect.

Description

technical field [0001] The invention belongs to the technical field of medical materials, in particular to a method for preparing a composite layer mask material. Background technique [0002] Today's world economy is developing rapidly, and people's living standards have improved significantly. However, economic development has also brought serious environmental problems. The residues emitted by combustion in the process of industrial production, daily power generation, and automobile exhaust emissions have a huge impact on human respiratory health. Especially very fine particulate matter (PM2.5) with a diameter of less than 2.5um in the air, they are the biggest culprits of atmospheric haze and human lung cancer. In addition to particulate matter in the air, there are also microorganisms such as bacteria, viruses, and mycoplasma chlamydia, which usually attach to suspended particles in the air and spread with the air flow. It may cause infectious diseases such as asthma...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D04H1/544D04H3/14D04H1/728D04H1/4382D04H3/02D04H3/005D01F8/08D01F8/02D01F1/10A41D31/04A41D31/02A41D13/11
CPCA41D13/11A41D31/02A41D2500/52A41D31/04D01F1/10D01F8/02D01F8/08D04H1/4382D04H1/544D04H1/728D04H3/005D04H3/02D04H3/14
Inventor 汤现春刘会珍
Owner 安徽灵春医用耗材有限公司
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