General medical masks usually use 20 grams of meltblown cloth, N95 cup-type masks use 40 grams or even higher weight of meltblown cloth.
According to China Industrial Textile Industry Association statistics, as of the end of 2018, there were 1,477 domestic spunbond production lines, an increase of 65 over the previous year, an increase of 4.6% year-on-year, of which PP spunbond nonwoven production lines increased by 3.38%, and SMS composite production lines Increased by nearly 13%, PET spunbonded nonwoven production line increased by 9.32%; companies with an annual output of more than 50,000 tons also increased from 2017. Spunbond enterprises are accelerating their development towards large-scale, intensive and high-end development, and they are accelerating to meet market demands for product upgrades and technology upgrades.
Since 2018, many domestic companies have developed products that are lighter, thinner and higher performance, and have achieved good results. The S SMMS spunbond / meltblown composite process runs well at high speeds above 600 m / min; ultra-soft, light, and stable products continue to emerge.
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