How waterproof and breathable fabrics work

Classification:
Oil and water repellent fabric

Waterproof and breathable fabric:

In the state of water vapor, the water particles are very small. According to the principle of capillary movement, they can smoothly penetrate into the capillary tube to the other side, thusvapor permeability occurs. When 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 It will not be able to smoothly break away from the water droplets and penetrate to the other side, which prevents water from penetrating, making the breathable membranehave a waterproof function. Types of waterproof breathable fabrics : There are mainly two types of water-resistant and waterproof. The former is divided into fiber/cloth type (not windproof but good breathability) and membrane type (windproof but breathable). (poor); the latter is generally a permeable membrane type, two or three layers, windproof, two layers are softer and more breathable than three layers That’s fine, the three-layer one is stronger. water-resistant or highly
water
The repellent fabric will seep when pressure is applied to it, for example, if you wear pants made of this material and sit on a wet stool.

The development of completely waterproof and breathable fabrics (waterproof) began in the late 1970s. The current second generation products are completely waterproof and windproof and maintaingood breathability. However, garments made of this kind of fabric are not necessarily completely waterproof, mainly because water seeps through seams or zippers. To ensure that the garment is completely waterproof, it needs to be All seams are taped (good garments use waterproof taping), which requires a lot of labor and cost, which is why such clothes are so expensive one.

Disclaimer:

Disclaimer: Some of the texts, pictures, audios, and videos of some articles published on this site are from the Internet and do not represent the views of this site. The copyrights belong to the original authors. If you find that the information reproduced on this website infringes upon your rights, please contact us and we will change or delete it as soon as possible.