The main functions of Waterproof Fabric are: waterproof, moisture permeable, breathable, insulating, windproof, and warm. In terms of the production process, the technical requirements of waterproof and breathable fabrics are much higher than that of ordinary waterproof fabrics; at the same time, from the perspective of quality, waterproof and breathable fabrics also have functional characteristics that other waterproof fabrics do not have.

The waterproof and breathable fabric enhances the air-tightness and water-tightness of the fabric, and at the same time, its unique vapor-permeable performance can quickly discharge the water vapor inside the structure, avoid mold breeding in the structure, and keep the human body always dry. It is a new type of fabric that is healthy and environmentally friendly. The real waterproof fabric can withstand the pressure of water seepage even in a humid climate for a long time without water seepage. For example, walking outdoors in wind and rain for a long time, kneeling, or sitting on wet ground will not seep water.

In the state of water vapor, the water particles are very small, and according to the principle of capillary motion, they can smoothly penetrate into the capillary to the other side, thereby causing the phenomenon of vapor permeation. When the water vapor condenses into water droplets, the particles become larger. Due to the surface tension of the water droplets (the water molecules "pull and compete with each other"), the water molecules cannot smoothly escape from the water droplets and penetrate to the other side, which is to prevent The permeation of water occurs, making the vapor-permeable membrane waterproof.