Study on the fire retardant cotton fabrics technology with phosphorus-nitrogen flame retardant

Phosphorus-nitrogen fire retardant was used as the working fluid to study the fire-retardant technology on cotton fabrics.The process of long-lasting fire retardant technology,the technological conditions and the effect of fire retardant on cotton fabrics were introduced.According to the fire-retardant synergies theory,a new phosphorus-nitrogen(P-N) fire retardant called Fr-21 which was developed by the chemistry department of Zhengzhou University was used in this experiment.Fr-21 is innocuous,LSZH environmental and water-soluble.It had excellent fire retardant effect,did not damage the brute force and hand feeling of fabrics.