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Analyze what is the non-woven fabric for masks?

by:XINYU Non-woven     2022-02-24

Cut a used medical mask (a new one is also possible, but I advise you not to waste it), and you will find: the mask has three layers. Because according to the country's production rules, medical masks include at least 3 layers of non-woven fabrics.

In fact, non-woven fabrics are woven fabrics made of directional or random fibers. Every home will have this information, and the more common one is the environmentally friendly cloth bag that the old man's home always keeps.

In the manufacture of masks, all raw material fibers are polypropylene (Polypropylene, PP for short), and medical masks are generally referred to as SMS structure. The spunbond layer is a single layer, and the meltblown layer is divided into single layer or multiple layers according to the filtering requirements.

'Meltblown cloth' is commonly known as the 'heart' of the mask. It is the filter layer in the middle of the mask. It has good filterability, shielding, heat insulation and oil absorption, and is an important material for the production of masks.

The two spunbond layers on the inside and outside can protect sweat and water, and the meltblown layer in the middle can filter out bacteria, thereby preventing the spread of germs and reducing the occurrence of coronavirus disease (COVID-19) pandemic infection. Therefore, the manufacturing process of the meltblown layer is different from that of the spunbond layer.

Let's make a comparison, the fiber diameter of the S layer of the spunbond layer of the mask is about 1/3 of the hair, and the diameter of the M fiber of the meltblown layer is close to 1/30 of the hair. antibacterial filterability.

In order to meet the national requirements, polypropylene high-melt finger non-woven special material has become a better choice for mask non-woven fabrics. It can also be used in disposable surgical gowns, sheets, covers, liquid absorption pads, etc. in multiple medical supplies. There are reports that 1 ton of high-melt finger fiber material can produce about 250,000 germ protective masks. With the supply of raw materials, the process of making masks is actually not messy.

First, the three layers of non-woven fabrics are stacked together by the production machine.


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