Customization: | Available |
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Application: | Nonwoven Surgical Gown |
Automatic Grade: | Semi-Automatic |
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How to produce melt-blown cloth that meet the standards? The melt-blown cloth does not look special, but the production process is very complicated. Its production process can be summarized into three major links: first, naphtha is extracted from petroleum, then chemically processed into polypropylene, and finally melt-blown. Here mainly introduces the last link. Both selection of raw materials and production process are important.
Polypropylene is easy to form filaments, and when the melt flow index is high (MFI≥1500g /10min), it can become quite fine fibers (diameter 2 ~ 3μm). Although the gap of the melt-blown cloth produced is much larger than the size of the new (about 0.1 μm), its ability to filter viruses in the environment is still very strong.
Because the virus cannot exist independently, its transmission route mainly includes secretions and droplets when sneezing, the size of the droplets is about 5μm; Melt-blown cloth is essentially a fiber filter. When the droplets containing the virus are close to the melt-blown cloth, they will also be electrostatically adsorbed on the surface and cannot penetrate.