THPC-Cyanamide Flame-Retardant Finish for Sleepwear Cotton 1

Abstract

Previous work at the Southern Division has shown that THPC-cyanamide reacts in the presence of phosphoric acid to impart durable flame retardancy to cotton textiles. However, the strength of the treated fabric is reduced considerably. This paper reports on a new improved formulation which contains dibasic sodium phosphate instead of phosphoric aicd. When this finish is applied to sleepwear, such as flannelette, durable flame resistance, together with good strength reten tion, is obtained. The effect of dibasic sodium phosphate concentration, mole ratio of reactants, and curing time on the durability and physical properties of the treated fabric are discussed.