Issue 22/2021 - Ultra-low air resistance medical masks successfully developed

Ultra-low air resistance medical masks were successfully developed

A few days ago, wearing masks for a long time is easy to be depressed, and the problem of fogging glasses has been overcome
by Yizheng Chemical Fiber.
The first batch of ultra-low air resistance medical meltblown cloth masks manufactured by it have been on the market for less than a month
.

According to Lin Dong, director of the meltblown device of Yizheng chemical fiber staple fiber, the filtration efficiency and ventilation resistance of the meltblown cloth are contradictory, and the higher the filtration efficiency and the higher the
resistance.
The resistance is high, the breathability of the mask is poor, it is easy to get deflated when worn for a long time, and it causes the glasses to fog.

In order to solve this problem, Sinopec Gu Liangang Lamor Innovation Studio organized a special research to develop ultra-low gas resistance meltblown cloth by optimizing raw materials, improving equipment, and improving the uniformity of filtration efficiency, which is not only softer and more breathable, but also can still maintain good water repellency, which does not affect the bacterial filtration efficiency and particle filtration efficiency of meltblown cloth while reducing the breathing gas resistance
of meltblown cloth.

Yizheng Chemical Fiber cooperates with medical mask manufacturers to develop ultra-low air resistance medical meltblown cloth masks, and improves
the appearance quality requirements such as mask ear straps.
After testing, the respiratory resistance of masks made of ultra-low air resistance medical meltblown cloth is less than 16Pa/cm2, which is better than the industry technical requirements
of 49Pa/cm2.
Up to now, Yizheng Chemical Fiber has produced a total of 3,577 tons of high-quality meltblown cloth, and can produce more than 3.
5 billion protective and medical masks
.