This is why it takes only 0.5s to make a mask in China, but it takes seven days to go on the market. The residual ethylene oxide produced in the mask production process must be released by analytical methods to meet the safety content standards, and can only be put on the market after passing the test. Therefore, the masks we bought in the market are disinfected layer by layer and inspected layer by layer.
In the production process of automatic mask machine, three layers of non-woven fabric raw materials are stacked together by the machine, curled, and the nose seam is closed. A large piece of non-woven fabric is gradually narrowed from left to right along the inclined plane to make a "folded structure". The mask surface is flattened, the mask is automatically cut and hemmed, then trimmed with non-woven fabric, and finally passed the quality inspection.