How does mask do waterproof treatment? Why is a mask waterproof? Now the use of masks is not only used in special industries, with the deterioration of the air, masks have been alive. Why do masks do waterproof? How can a mask be waterproof? Then Janice explained to everyone one by one.
the reason why the mask is waterproof
A mask is to block harmful gases, odors, droplets import the wearer the nose and appliances, most with non-woven cloth, made of cotton or paper. The outer layer of dust masks tend to accumulate a lot of outside air, bacteria and other dirt, usually best to prepare several masks, use to replace, should be a daily change but masks raw materials easy to water seepage, especially in rainy weather, wet mask, will affect us in the use of comfort.
The waterproof process of the mask is as follows
1）Spray waterproofing spray
1.1 ）cleaning the mask surface to avoid uneven spraying, affecting the effect;
1.2 ）Waterproofing of raw materials
The raw materials for making masks were waterproofing. The fabric water repellent DTM648-2 was diluted to 2% immersion cloth (1 minutes or so) diluted with water, then dried at high temperature (110-130 degrees), and then dried for 3 minutes at 170 degrees.