ACABAMENTO RETARDANTE DE CHAMA PARA MATERIAIS DE FIBRA

摘要

Fiber material treating involves applying an aqueous mixture, which contains water, a tetrakis-hydroxymethyl phosphonium compound and a product. The product is obtained by reacting a tetrakis-hydroxymethyl phosphonium compound with an organic nitrogen compound on a fiber material. The fiber material is dried, and the dried fiber material is treated with gaseous ammonia or aqueous ammonia solution. Thus obtained material is treated with an oxidizing agent as per requirement, and thus obtained fiber material is washed with an aqueous solution of hydrogen peroxide.