Simple mask for efficiently filtering PM2.5 and manufacturing method of simple mask

Abstract

The invention relates to a simple mask for efficiently filtering PM2.5. The simple mask comprises a mask body which is used for covering the mouth and the nose of a wearer. A pair of ear hooking parts used for being hooked to the ears of the wearer is arranged on two sides of the mask body in an extending mode. The mask body is in a three-layer structure and forms a stacked shape, and the three-layer structure sequentially comprises an outer polypropylene spun-bonded non-woven layer, a middle superfine-electret melt-blown fiber non-woven layer and an inner polypropylene spun-bonded non-woven layer. When the mask is worn, the inner polypropylene spun-bonded non-woven layer faces to the wearer. Small breathing holes are respectively distributed in the outer polypropylene spun-bonded non-woven layer and the inner polypropylene spun-bonded non-woven layer and penetrate through the outer polypropylene spun-bonded non-woven layer and the inner polypropylene spun-bonded non-woven layer, and the hole diameters of the small breathing holes are 0.3-0.6mm. The invention further provides a manufacturing method of the mask. The simple mask has the characteristics of high filtering and low flow resistance and has prominent blocking and capturing capabilities for PM2.5 air particles.

Description

technical field [0001] The invention relates to the technical field of fine particle protective equipment, in particular to a high-efficiency PM filter 2 . 5 Simple mask and its production method. Background technique [0002] PM 2.5 Refers to particulate matter in the atmosphere with an aerodynamic equivalent diameter less than or equal to 2.5 μm, also known as particulate matter that can enter the lungs. high concentration of PM 2.5 Pollution affects ambient air quality and human health. With the gradual implementation of new air quality evaluation standards across the country, and the emergence of large-scale persistent haze weather in many provinces and cities in my country in recent years, the "PM 2.5 ’ came into the spotlight. Thanks to PM 2.5 Particles have a great impact on ambient air quality and human health. People have shown great enthusiasm for masks. However, there are not many masks on the market that specifically protect against such fine particles. Exi...

AI Technical Summary

Problems solved by technology

The structure of the 4-layer filter element formed in this way is too complicated, and the air permeability will be greatly reduced, which will lead to the formation of water mist on the inner surface of the mask, which will breed bacteria after a long time, and the production process will be more cumbersome, resulting in a greatly increased manufacturing cost. The filter element structure and the 3-layer filter element structure do not significantly improve the filtration efficiency of PM2.5

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