Abstract: An investigation on the feasibility of alkali scouring and oxygen bleaching of cationic dyeable polyester hollow stable fiber / natural cellulosic fiber blended fabrics studied the effect of sodium hydroxide, hydrogen peroxide, synergetic effect between sodium hydroxide and hydrogen peroxide on the wearabilities and mechanical properties of the polyester. The results showed that warmth retention, water-vapor permeation and bursting strength of polyester fabric would be remarkably affected by sodium hydroxide treatment and hydrogen peroxide treatment, respectively. Based on the hollow structure not be destructed, the results of orthogonal experiment indicated that sodium hydroxide and hydrogen peroxide had a synergetic effect on the damage to warmth retention and bursting strength of polyester fabric, and the effect of hydrogen peroxide concentration on the warmth retention was more notable than that of sodium hydroxide concentration.

Key words: polyester hollow staple fiber, wearability, warmth retention, water-wapor permeability, bursting strength