Effect of alkaline-oxygen treatment on wearabilities of cationic dyeable hollow polyester knitted fabrics

A new type of cationic dyeable hollow polyester staple fiber was studied. The effects of sodium hydroxide,hydrogen peroxide and synergetic effect between sodium hydroxide and hydrogen peroxide on the warmth retention,water-vapor permeability and mechanical properties of pure polyester knitted fabric were investigated. The warmth retention,water-vapor permeation and bursting strength of polyester fabric were remarkably affected by sodium hydroxide treatment or hydrogen peroxide treatment,respectively. Presupposing that the hollow structure of polyester fiber was not destructed,orthogonal experiment indicated that sodium hydroxide and hydrogen peroxide had a synergetic effect on the damage to warmth retention and bursting strength of the polyester knitted fabric,and the effect of hydrogen peroxide concentration on the warmth retention was more noticeable than that of sodium hydroxide concentration.