What is the non-woven electret masterbatch and what does it have to do with masks? Non-woven electret masterbatches can be applied to meltblown non-woven fabrics, so as to improve the capture of charge and achieve the result of improving filtration efficiency. Meltblown non-woven fabrics are applied to the filter layer of masks for filtering effect.

The electret treatment of the meltblown nonwoven fabric for masks is actually an electrostatic application process, that is, the process of charging the ultrafine fibers with electrostatic treatment. There are usually many ways of electret treatment, including electrostatic spinning, low-temperature plasma charging, liquid contact charging, triboelectric charging, and low-energy electron beam charging. The commonly used method is low-temperature plasma charging, which is also known as the corona electret method.

Factors affecting the quality of meltblown nonwovens include: fiber fineness, adhesion fastness, gram weight, and electret effect.

The finer the fiber, the denser the non-woven fabric, the smaller the pore size, the greater the resistance, and the better the corresponding filtration efficiency.

The better the adhesion between the fibers, the denser the non-woven fabric, the greater the resistance, and the better the corresponding filtration efficiency.

The greater the weight of the non-woven product, it is equivalent to increasing the number of layers of the non-woven fabric. Although the number of fibers increases, the resistance of the non-woven fabric increases, and the corresponding filtering efficiency is better. The above factors are controlled by the process parameters of the meltblown nonwoven fabric production process, that is, by adjusting the meltblown nonwoven fabric production process, qualified meltblown nonwoven fabric base fabric can be produced, which provides a good basis for the production of high-quality mask fabric .

The quality of the electret effect is actually a more important factor affecting the quality of non-woven products. The electret effect is affected by the amount of charge trapped on the fiber during the electret process. The larger the amount of charge trapped, the more static electricity it carries, and the better the filtration efficiency.

The charge on the meltblown non-woven fabric will be lost with time, and the filtration efficiency of the non-woven product will be reduced, which is commonly referred to as the filtration efficiency decline.

The addition of Ruize non-woven electret masterbatches to meltblown non-woven products can increase the density and depth of charge traps in the melt-blown non-woven, and improve the filtration efficiency and resistance to thermal fading of the product. . The melt-blown non-woven products produced can reduce the resistance of the non-woven products and improve the filtration efficiency of the non-woven products under the same fiber fineness and the same gram weight.

The non-woven electret masterbatch increases the density of the charge trapping traps in the meltblown nonwoven fabric, so that the probability of the charge being captured by the meltblown cloth is increased under the same charging equipment and process conditions, and the charge of the obtained meltblown product is increased. The density is increased, thereby improving the filtration efficiency of the meltblown non-woven fabric product without increasing its resistance; while maintaining the filtration efficiency, the resistance of the non-woven fabric product is greatly reduced, and both of them are improved at the same time.

The non-woven electret masterbatch increases the depth of the charge trapping energy trap in the meltblown non-woven fabric, so that the trapped charge is in a lower energy state, making it difficult for the charge to escape from the trap or be neutralized during long-term storage. As a result, the stability of the charge of the melt-blown non-woven product is improved, and the decay of the electret charge is slowed down, so as to improve the performance of the melt-blown non-woven product against thermal decay.

It can be seen that the non-woven electret master batch played a vital role in the filtering effect of the meltblown non-woven fabric in the middle of the mask!