Classification of waterproof fabrics
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waterproof fabric water repellent city textile
The water repellency of a fabric refers to its ability to push water droplets off its surface. The purpose of water-repellent finishing is to prevent water from wetting the fabric and prevent liquid water from penetrating, but still maintain the breathability and moisture permeability of the fabric.
Waterproof finishing can usually be divided into airtight and breathable according to the breathability of the processed waterproof fabric. The non-breathable finishing of fabrics is also called coating finishing. It is a continuous film that is non-breathable and insoluble in water and is coated on the surface of the fabric, so the fabric is non-breathable. Wearing clothing made of this kind of fabric will make people feel stuffy, but it can be used to make tents, raincoats and other supplies.
The oilcloths (tung oil, linoleum, etc.) used in China for a long time fall into this category. In order to improve the feel, elasticity and durability of finishing products, polymer materials with high adhesion to fabrics, good elasticity, soft feel and aging resistance are used for coating processing recently. Commonly used ones include rubber and plastic (polyacrylate and polyurethane). Non-breathable and waterproof finishing is also called water-repellent finishing. It changes the fiber surface properties and changes the hydrophilicity of the fiber surface to hydrophobicity. However, in waterproof fabric, there is still a large amount of water between fibers and yarns. This kind of waterproof fabric is both breathable and not easily wetted by water. Water permeability only occurs when the water pressure is quite high, so it is suitable for raincoats.
The waterproof fabric produced by City Textile is made by adding waterproof additives during the finishing process after printing and dyeing. The fabric is waterproof.
：City
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