What is permanent flame retardant fabric

Flame retardant curtain refers to the use of fire-retardant fabric made of curtains, because the curtain fabric with flame retardant function, can achieve fire prevention and mitigation effect is widely used. People's Republic of China standard GB50222 - 95 "building interior design fire code" provides decorative materials in accordance with their combustion performance is divided into four levels: a class of non flammable; B1 level of fire resistance; B2 class Flammability; B3 class flammability. Therefore, only to achieve a grade and B1 grade fabrics can be called flame retardant fabric. At present, in addition to non textile fabrics to achieve class a flame retardant, flame retardant textile fabric is the highest level of B1. 3Tq80G