Flat plate-supported three-dimensional gauze mask and making method thereof

Abstract

The invention discloses a flat plate-supported three-dimensional gauze mask, which comprises a filtering material part, a face connecting part, a supporting frame and two tying straps, wherein the filtering material part is arranged on the outer side face of the gauze mask; the face connecting part is an annular elastic fabric; the supporting frame is of a planar structure which has elasticity; the two tying straps are arranged at two sides of the gauze mask and are fixedly connected to the outer side of the filtering material part or the outer side of the face connecting part; the periphery of the elastic face connecting part is fixedly connected to the periphery of the filtering material part, so that a gauze mask main body which is represented in the form of a turned fastening side andhas an internal supporting space is defined; the outer circumference shape of the supporting frame is matched with the periphery of the internal supporting space; the supporting frame is detachably arranged in the internal supporting space; and the periphery of the supporting frame abuts against the edge of the inner side of the internal supporting space which is formed by combining the filteringmaterial part and the face connecting part, so that the three-dimensional gauze mask structure, which protrudes outwards, is formed. The invention also discloses a making method of the flat plate-supported three-dimensional gauze mask; and the three-dimensional gauze mask is relatively large in filtering area and filtering space, convenient to process and convenient to package and transport.

Description

technical field [0001] The invention relates to a mask, in particular to a flat plate-supported three-dimensional mask with a large filtering area and a filtering space, which is easy to process, package and transport, and a manufacturing method thereof. Background technique [0002] The main purpose of the mask is to isolate harmful substances transmitted by gas, such as fine particles mainly PM2.5 and viruses transmitted in aerosol state. Generally speaking, masks have a certain gas leakage rate. The corners of the wearer's mouth, chin and both sides of the bridge of the nose are the main places where leakage is likely to occur. The discontinuity of the contact surface between these areas and the mask reduces the airtight effect. One way to increase the airtight effect is to tighten the straps of the mask so that the skin of the face is sunken to achieve a seal. This way the user feels very uncomfortable to wear, and at the same time tighten the straps so that the part out...

AI Technical Summary

Problems solved by technology

The masks of these two schemes are all approximately hemispherical three-dimensional structures. The disadvantage is that the packaging and storage take up a lot of space, and the three-dimensional support frame increases the difficulty of production; When the fixed size is too small or too large, it is difficult to achieve a tight fit

Another disadvantage of the above-mentioned three-dimensional mask is that the three-dimensional mask is equipped with a ring-shaped face-fitting part that fits the face, which blocks the filter part structurally, and makes the ear straps unable to be processed automatically, requiring manual welding of the ear straps , which limits the capacity of the

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