Multi-layer three-dimensional protective mask and its production method and application

Abstract

The invention relates to a multilayered three-dimensional protection mask. The multilayered three-dimensional protection mask comprises a mask body and a fixing band, wherein the mask body is in a three-layered layer structure and comprises an upper ventilation part, a protection part and a lower ventilation part, wherein each of the upper ventilation part and the lower ventilation part is composed of a functional region for realizing a ventilation function and a supplementary region for unfolding or folding the mask body; the protection part is overlapped with the functional regions of the upper ventilation part and the lower ventilation part, and the two ends of the protection part are sewed; the supplementary regions and the functional regions of the upper ventilation part and the lower ventilation part are overlapped; first fixing parts for fixing the layer structure are symmetrically arranged at the two ends of the mask body; the supplementary regions can be folded along the length directions of the functional regions; embossing regions are arranged in the middles of the functional regions of the upper ventilation part and the lower ventilation part, and correspond to a nose and a chin respectively in a utilization process, so that the stiffness of the mask body is improved; four second fixing parts are correspondingly arranged at four corners of the protection part and the functional regions, so that four sealed oblique angles are formed; and the upper ventilation part and the lower ventilation part are unfolded up and down to form an arch cavity of the mask body. The multilayered three-dimensional protection mask is reasonable in structural design, regular in structure, relatively small in size and convenient to carry.

Description

technical field [0001] The invention relates to a protective article, in particular to a multi-layer three-dimensional protective mask and its production method and application. Background technique [0002] At present, the masks on the market are generally made of gauze, cotton and other materials. Although they can play a certain protective role, in order to ensure air permeability, gauze or cotton generally has a low density of yarn or cotton thread, so its filterability is restricted. At the same time, due to the characteristics of cotton cloth itself, it cannot be fused with chemical fiber non-woven fabrics or gauze, so it needs to be stitched or composited by other processes, and the composite process is relatively complicated. [0003] On May 6, 2015, the Chinese invention patent with the publication number CN104585924A discloses a composite multi-layer composite mask and its manufacturing process, including a mask body, which includes a surface layer, a middle layer ...

AI Technical Summary

Problems solved by technology

The middle layer of the present invention adopts an electrostatically loaded melt-blown filter material layer, which can fuse the cotton cloth layer between the surface layer and the middle layer, so that it not only has good filtering effect, low resistance, but also good comfort, strong air permeability and water absorption; and more The layers of material are composited by ultrasonic welding, no sutures are needed, and the composite process is simplified, but it still has the following disadvantages: 1. The structure of the nose clip is mostly made of metal materials, which has high processing costs, poor safety, and poor comfort; 2. Multiple The opening method of the multi-layer composite mask is unreasonable and the volume of the arch cavity after opening is relatively small, which is poor in use comfort and easily causes discomfort to the user; 3. The structure of the multi-layer composite mask is irregular, the volume is relatively large, and it is inconvenient to carry

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