Recently, the country released the white paper “China’s Action to Fight the New Coronavirus Epidemic”. According to data compiled by the Central Government, China exported 70.6 billion to 200 countries or regions around the world during the period from March to May. Masks have made a huge contribution to the global fight against the epidemic.
Then the question is, 70.6 billion masks, how many have been used? What about tons of meltblown cloth?
The KN95 mask machine has a width of 175mm and a width of 260mm. We have made a set of data comparisons for these two devices, as shown below:
As shown in the picture above, taking 50g melt-blown non-woven fabric as an example:
◆If using 175 width For a mask machine, one KN95 mask theoretically requires about 2.152 grams of melt-blown cloth, and 1 ton of melt-blown non-woven fabric can theoretically produce about 464,576 masks.
◆If you use a 260 wide (double row) mask machine, theoretically one KN95 mask requires about 1.6 grams of melt-blown cloth, and 1 ton of melt-blown non-woven fabric theoretically Approximately 625,391 masks can be produced!
It can be seen that the 260 wide (double row) mask equipment uses relatively less material to make 240mm*120mm masks, and can produce more masks.
A mask only requires a few grams of melt-blown, and it usually takes a year to add a new melt-blown production line. “Melt-blown non-woven fabric is called the “heart” of medical surgical masks and N95 masks in the industry. It is the filter layer in the middle of the mask. It has good filtering, shielding, heat insulation and oil absorption properties. It is an important raw material for the production of masks. . Common medical masks are mainly composed of three layers of non-woven fabrics. The inner layer is ordinary non-woven fabric, and the outer layer is waterproof-treated non-woven fabric. It is mainly used to isolate the liquid sprayed by the patient. The middle filter layer is Electret-treated polypropylene melt-blown cloth can filter out viruses attached to body fluids.</p
