Baby diaper backsheet lamination breathable film raw material

The breathable film is a kind of film that can be penetrated gas (such as moisture, air, etc.).
Moreover, breathable can block liquid particles and solid particles (such as water, oil, germs, etc.)

After stretching, the CaCO3 micropores deformation cracks.

In the state of water vapor, water particles are very small, according to the principle of capillary movement, which can be successfully penetrated the capillary to the other side, which occurs through the phenomenon of steam.

When water vapor condenses into droplets, the particles become larger, due to the role of the surface tension of water droplets (water molecules between each other, pulling contend "), water molecules cannot smooth out of drops of water penetration to the other side, also is to prevent the infiltration of water, the vapor permeation membrane with waterproof function.