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Protective mask and preparation method thereof

A mask and porous membrane technology, applied in protective equipment, protective clothing, separation methods, etc., can solve problems such as the decline in filtration efficiency of protective masks

Pending Publication Date: 2020-09-18
SHANDONG ZHONGHENG CARBON FIBER TECH DEV CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Studies have shown that after soaking the melt-blown polypropylene electret filter material in pure alcohol, the filtration efficiency of the filter material drops from 99.58% to 77.42%, and the filtration efficiency of the protective mask drops significantly
At present, there is no report on a washable protective mask with high filtration efficiency without increasing the inspiratory resistance

Method used

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  • Protective mask and preparation method thereof

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preparation example Construction

[0040] The present invention also provides a preparation method for the protective mask described in the above technical solution, comprising the following steps:

[0041] According to the lamination sequence, each layer of material is laminated and then hot-rolled to obtain the composite layer of the main body of the protective mask;

[0042] According to the size of the main body of the protective mask, the composite layer of the main body of the protective mask is cut to obtain the main body of the protective mask;

[0043] The main body of the protective mask is connected with the ear loop to obtain the protective mask.

[0044] According to the invention, each layer of materials is laminated according to the lamination sequence and then hot-rolled to obtain the composite layer of the main body of the protective mask.

[0045] In the present invention, the materials of each layer are consistent with the structural materials of each layer of the main body of the protective...

Embodiment 1

[0053] According to the order from the outside to the inside, the fabric layer, the hot-melt fiber web, the first porous membrane material layer, the bi-component fabric layer, the second porous membrane material layer and the non-woven fabric layer are stacked in sequence, wherein the fabric layer Polyester filament fabric is used, the warp and weft are both 36.1tex, the warp density is 190 / 10cm, and the weft density is 160 / 10cm; the first porous membrane material layer is polytetrafluoroethylene porous membrane, with an average The pore size is 3.9 μm, and the porosity is 86%; the hot-melt fiber web is a polyamide fiber web with a melting point of 130°C, and the weight is 10g / cm 2 ;The two-component fabric layer is a fiber net formed by mixing PET fibers with a melting point of 230°C and PP fibers with a melting point of 130°C, wherein the mass ratio of PET to PP is 7:3, and the weight of the two-component fabric layer is 45g / cm 2 The second porous membrane material layer ...

Embodiment 2

[0059] According to the order from the outside to the inside, the fabric layer, the hot-melt fiber web, the first porous membrane material layer, the bi-component fabric layer, the second porous membrane material layer and the non-woven fabric layer are stacked in sequence, wherein the fabric layer It adopts two-component spunbond nonwoven fabric, which is composed of PET fiber with a melting point of 230°C and PP fiber with a melting point of 130°C, and the weight is 100g / cm 2 The first porous membrane material layer is a polytetrafluoroethylene porous membrane with an average pore size of 3.9 μm and a porosity of 86%; the hot-melt fiber web is a polyamide fiber web with a melting point of 130° C. and a grammage of 10 g / cm 2 ;The two-component fabric layer is a fiber net formed by mixing PET fibers with a melting point of 230°C and PP fibers with a melting point of 130°C, wherein the mass ratio of PET to PP is 7:3, and the weight of the two-component fabric layer is 45g / cm ...

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Abstract

The invention belongs to the technical field of protective articles, and particularly relates to a protective mask and a preparation method thereof. The protective mask provided by the invention comprises a main body and ear rope sleeves, wherein the main body comprises a fabric layer, a first porous membrane material layer, a two-component fabric layer, a second porous membrane material layer anda non-woven fabric layer which are sequentially stacked from outside to inside; a hot melting fiber net is arranged between the fabric layer and the first porous membrane material layer; the first porous membrane material layer and the second porous membrane material layer are polytetrafluoroethylene porous membranes or melt-blown non-woven fabrics independently; and at least one of the first porous membrane material layer and the second porous membrane material layer is a polytetrafluoroethylene porous membrane. The first porous membrane material layer and the second porous membrane materiallayer form a double-layer porous membrane structure, so the liquid-repellent and mist-repellent properties of the protective mask is achieved, and it is guaranteed that the layer structure of the protective mask is not changed when the protective mask is cleaned; and filtering is not conducted through electrostatic interaction, and the protective mask can be washed with water.

Description

technical field [0001] The invention belongs to the technical field of protective equipment, in particular to a protective mask and a preparation method thereof. Background technique [0002] As an important protective equipment, protective masks are getting more and more attention from people. The protective mask has high filtration efficiency and low inhalation resistance, so the protective mask has good protective effect and wearing experience, but when the filtration efficiency increases, the inspiratory resistance often increases accordingly, and it is difficult to have both. [0003] Melt-blown nonwovens are self-consolidated fiber aggregates of ultrafine fibers. The specific surface area of ​​the fibers is large, and the adsorption capacity for particles is strong. The fibers are randomly distributed, forming a large number of complex three-dimensional micro pores, and the filtration efficiency is high. With high pore content and low inhalation resistance, it is wide...

Claims

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Application Information

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IPC IPC(8): B32B27/36B32B27/02B32B27/34B32B27/12B32B27/32B32B7/12B32B37/06B32B37/10B32B37/12B32B38/00B32B38/06A41D13/11A41D31/02A41D31/04B01D46/54
CPCB32B27/322B32B27/12B32B5/02B32B5/022B32B5/26B32B7/12B32B37/06B32B37/10B32B37/12B32B38/0004B32B38/06A41D13/11A41D31/02A41D31/04B01D46/543B32B2262/0276B32B2262/0261B32B2262/0253B32B2307/724B32B2571/00Y02A50/30
Inventor 董卫国关昊辰吕明迪宋钇汝
Owner SHANDONG ZHONGHENG CARBON FIBER TECH DEV CO LTD
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