Technical Analysis on Stripping Technologies about Cotton Yarn on Cones

The stripping technique of vortex spinning cotton yarn on cones was designed to reduce the strength loss of vortex spinning cotton yarn on cones during stripping process,and achieved good stripping effect.The research showed that the quantity of sodium carbonate and sodium hydrosulfite,the stripping time,the number of stripping processes,and the stripping temperature could affect the stripping results of fuscous,middle fuscous and light-colored cottons.The optimizing process was fixed by single factor regulation,the conditions were that: 2 g/L sodium carbonate,4 g/L sodium hydrosulfite,90～100 ℃ stripping temperature,and 40～60 minutes stripping time for light-colored cotton;4 g/L sodium carbonate,6 g/L sodium hydrosulfite,100 ℃ stripping temperature,and 60 minutes stripping time for fuscous and middle fuscous cotton.The results showed that the technics could keep the intrinsic strength of the vortex spinning cotton yarn on cones,and had good stripping effect.