Many people confuse waterproof fabrics with water-repellent fabrics. In fact, they are very different in nature. Do you know which fabrics are used in jackets and raincoats? I believe you will be able to distinguish between these two fabrics after reading the article.
The essence of waterproof water-proof fabric is that hydrophobic compounds are deposited on the fiber surface. There will be many gaps on the surface of the fabric, but only moisture and air can pass through, and water droplet-shaped liquid is It cannot pass, but it is not truly waterproof and will still penetrate into clothes over time. This is also the main basis for distinguishing waterproof fabrics from water-repellent fabrics.
The principle of water-repellent is to attach a layer of hydrophobic chemical material to the cloth surface, causing the tension of the cloth surface to be smaller than the cohesive force of water. When water droplets come into contact with the cloth surface, they will spread out instead of penetrating into it, so this If the layer structure is damaged, the fabric will lose its waterproof function, because the waterproof function of the wave-proof water-proof fabric will weaken and disappear with the use of time.
Waterproof fabric is to add a layer of rubber bottom (waterproof coating) to the bottom of the fabric. This waterproof coating is usually made of capsule fiber or silicone, which can make the fabric that is not waterproof itself Waterproof.
To summarize, waterproof fabrics do not have long-term waterproof performance, while waterproof fabrics have long-term waterproof properties, and their production principles are also different. The principle of the former is that the cohesion of fabric tension is greater than that of water. The latter directly adds a layer of waterproof coating, and you can distinguish them through these two points in the future. Of course, there are also a variety of waterproof fabrics for sale. Here are some recommended waterproof fabrics that sell well.
Nylon tarpaulin: This tarpaulin is made of 100% nylon. There are currently 12 colors to choose from. The width of the fabric is 150cm. It can be used to make down jackets, jackets and windbreakers. wait.
Waterproof down jacket fabric: The main raw material of this waterproof fabric is polyester fiber. The width of the fabric is 150cm. The fabric is thin and non-elastic. It is suitable for making down jackets and windbreakers.
