Process for imparting flame retardancy to textile materials

摘要

According to the invention, the treatment process for imparting flame retardancy consists in grafting a textile material containing nitrogen atoms in its polymeric structure, especially silk, with a phosphoric acid ethyenic ester of the general formula (* CHEMICAL STRUCTURE *) in which R1 is selected from the group comprising H and alkyls and R2 is selected from the group comprising alkylenes and alkylene oxides and/or polyalkylene oxides, for example phosphated ethylene glycol methacrylate, the grafting rate being less than or equal to 20%.