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What are the classifications of PFE99 Melt-blown wipes

What are the classifications of PFE99 Melt-blown wipes

(Summary description)PFE99 Melt-blown wipes, as the raw material of masks, have been well-known recently. So what is meltblown cloth? Maybe everyone wants to know. Today, as Dongguan Tuoyuan with more than ten years of experience in melt blown cloth, I will share with you.

What are the classifications of PFE99 Melt-blown wipes

(Summary description)PFE99 Melt-blown wipes, as the raw material of masks, have been well-known recently. So what is meltblown cloth? Maybe everyone wants to know. Today, as Dongguan Tuoyuan with more than ten years of experience in melt blown cloth, I will share with you.

Information

PFE99 Melt-blown wipes, as the raw material of masks, have been well-known recently. So what is meltblown cloth? Maybe everyone wants to know. Today, as Dongguan Tuoyuan with more than ten years of experience in melt blown cloth, I will share with you.

good price and quality PFE99

PFE99 Melt-blown wipes mainly use polypropylene as the main raw material, and the fiber diameter can reach 1 to 5 microns. There are many voids, fluffy structure, and good wrinkle resistance. These ultra-fine fibers with unique capillary structure increase the number and surface area of ​​fibers per unit area, so that the meltblown cloth has good filterability, shielding, heat insulation and oil absorption. . At the same time, it has a wide range of uses, which can be used in fields such as air, liquid filter materials, isolation materials, absorbent materials, mask materials, thermal insulation materials, oil-absorbing materials and wipes.

So, what are the types of PFE99 Melt-blown wipes? In fact, there is no more precise distribution. It is generally distinguished according to the bacterial filtration rate or the particle filtration rate. Bacterial filtration rate is abbreviated as BFE. It uses a flow rate of 32L/MIN to test the filtration efficiency of 3 micron bacteria. Strictly speaking, it needs to cultivate bacteria to test. The simple test method is to use NACI aerosol test, which is for reference only. Then, there is another way to distinguish according to the particle filtration rate, and the flow rate and oil-salt particles tested under each requirement are different.

Generally, the domestic test in China is to test the filtration efficiency of 0.3 micron particles at a flow rate of 85L/MIN. The European Union CEEN149 tests the efficiency of oil dust filtration according to the DOP method, and the flow rate is also different. So we see that FFP1, FFP2, FFP3 are all tested oily filtration efficiency, and this requirement is relatively high.

Keyword:

How

How the Melt-blown fabric is constructed

The following paragraph of this article will introduce the related production process of Melt-blown fabric. The production process of Melt-blown fabric is mainly divided into three steps: melt extrusion, melt-blown process, and electret treatment. Specifically, Melt-blown fabric uses high-speed hot air flow to draw the extruded polymer melt through the spinneret holes of the die nozzle. From this, microfibers are formed and collected on a condensate screen or drum, and at the same time self-bond to become a Melt-blown fabric.
2023-03-23
Reasons

Reasons why Melt-blown fabric becomes brittle after production

1. If the aspect ratio of the spinneret of Melt-blown fabric is small, the holes are thick and short. After the polymer is sprayed, the fibers are thicker, the gaps are larger, and the water absorption is stronger for a long time , so the Melt-blown fabric is neither soft nor brittle.
2023-03-16
The

The features of BFE 99 masks

BFE in BFE 99 masks means bacterial filtration effect, which refers to the material's resistance to bacterial penetration. The reported results of BFE 99 masks are shown in percentage data, corresponding to the ability of the material to resist bacterial penetration. The higher the value, the better its filtration performance. 
2023-03-09
Chemical

Chemical absorbent pads manufacturers take you to understand absorbent pads

Chemical absorbent pads manufacturers tell you that as we all know, with the rapid development of the modern industrial chain, absorbent pads have been widely used in fresh vegetables and fruits. In the next paragraph of this article, chemical absorbent pads manufacturers will show you how the small absorbent pads are well known to everyone.
2023-03-02

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