Mask manufacturing method and mask

Abstract

The invention discloses a mask manufacturing method and a mask. The mask manufacturing method comprises the steps that firstly, melt-blown fabric is made of crude fibers and fine fibers, and then the melt-blown fabric is subjected to a water electret electrostatic treatment process; and the water electret electrostatic treatment process for the melt-blown fabric comprises the following steps of adding water electret master batch into the base cloth of the melt-blown fabric; unwinding the base cloth of the melt-blown fabric containing the water electret master batch; and in the unwinding process, carrying out spunlace spraying out on the base cloth of the melt-blown fabric, so that water rubs with the crude fibers and the fine fibers to generate charges, and the spunlace electret is completed. Due to the fact that the melt-blown fabric adopts the crude fibers, the filtering resistance of the melt-blown fabric is reduced, the melt-blown fabric is not prone to being blocked, and the dust holding capacity is increased; and meanwhile, the electrostatic adsorption area of the melt-blown fabric is increased through the crude fibers, and therefore after the electrostatic treatment technology of the water electret is adopted, the static electricity of the melt-blown fabric is kept three times or above that of an electric electret, and the filtering efficiency is guaranteed, therefore, the mask has low resistance and high filtering efficiency, and the service life of the mask is prolonged.

Description

technical field [0001] The invention relates to the technical field of masks, and more specifically relates to a method for making a mask and a mask. Background technique [0002] The mask is composed of an outer layer of non-woven fabric, a middle layer of melt-blown fabric and an inner layer of non-woven fabric. In order to improve the filtration efficiency of existing masks, the fibers used in the melt-blown cloth are relatively thin, which makes the melt-blown cloth relatively fine and dense, and also causes relatively large resistance. In addition, the humidity in the air enters the fine fibers of the melt-blown cloth, twisting the fibers of the melt-blown cloth into bundles and expanding, crowding out the ventilation gaps between the melt-blown fibers, causing the breathing resistance of the mask to increase, and the resistance exceeds 112Pa, and the mask cannot continue to breathe. use, the service life is short. Moreover, the fibers are twisted into bundles and swe...

AI Technical Summary

Problems solved by technology

In order to improve the filtration efficiency of existing masks, the fibers used in the melt-blown cloth are relatively thin, which makes the melt-blown cloth relatively fine and dense, and also causes relatively large resistance

In addition, the humidity in the air enters the fine fibers of the melt-blown cloth, twisting the fibers of the melt-blown cloth into bundles and expanding, crowding out the ventilation gaps between the melt-blown fibers, causing the breathing resistance of the mask to increase, and the resistance exceeds 112Pa, and the mask cannot continue to breathe. use, short service life

Moreover, the fibers are twisted into bundles and swelled, the service life is only 2-4 hours, and the service life is short. This fact has been repeatedly confirmed in the laboratory. It is a hidden danger for doctors, nurses and users, and for workers or others. It is imperative to improve the work and daily needs of the crowd

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