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What is the technology of flame retardant fabric coating

Flame-retardant fabrics are FR Combined Fabric finished through flame-retardant processes. The main function of flame-retardant fabrics is to prevent the spread of flames. Carbonization occurs in the area in contact with the flame. When the fire source is removed, the flame-retardant fabrics will no longer continue to burn. Coated fabric is a fabric processed by a special process. It can form a uniform layer of covering rubber on the surface of the fabric, so as to achieve the functions of waterproof and windproof.


Coated fabrics are widely used in sportswear, down jackets, rainproof parkers, coats, and windbreakers with waterproof and moisture-permeable functions. It can also be used in fields such as national defense, navigation, fishing, offshore oil wells, and transportation. Use scrapers, rollers or cylinders to coat the film-forming high polymer directly or indirectly on the surface of base fabrics such as woven fabrics, knitted fabrics or non-woven fabrics, thereby changing the appearance of the base fabric and its water permeability and wind resistance. 


Waterproof and other properties. It is also possible to use a transparent coating silicon oxide or other metal oxide nano sol containing a metal oxide or silicon oxide film, which is prepared by acidic or alkaline hydrolysis of alkoxides. The produced nano-sol generally contains 3%-20% metal oxide, and after coating, a solvent-containing sol layer is formed on the surface of the textile. After drying and heat treatment, the coating solvent containing the dry gel layer is removed to form a porous oxidized structure.


By chemical and physical methods to modify the nano sol, the functionality of the coating can be changed. The physical modification is to evenly bond and fix the auxiliary agent on the metal oxide substrate. Therefore, various auxiliary agents that can increase the functionality of the textile can be used to improve the light fastness, the stability of the fiber to ultraviolet light, and the fastness to abrasion. Degree, antistatic and flame retardant. At present, plasma treatment technology is also used for fiber surface modification, such as changing the chemical properties of the fiber surface, improving the strength of the fiber, and improving the durability of the binder in the finishing and coating.