The compound of masks generally uses hot melt adhesive retina, which involves a 5-layer structure. There are two layers of PP non-woven fabric, and the middle is a layer of melt-blown cloth. The outer non-woven fabric is used to isolate large particles, while the inner non-woven fabric is more delicate and fits the skin better. The melt-blown cloth in the middle layer is the core filter layer, which is mainly used to filter out small particles of matter.
The composite of two layers of non-woven fabric and melt-blown cloth between them uses hot melt adhesive retinal products. Hot melt adhesive retinas are characterized by light weight, low amount of glue applied, and strong breathability. As a fast and environmentally friendly adhesive product, it is suitable for the rapid mass production of masks, and also combines people's needs to protect their own health.
