STUDIES ON EFFECT OF RING FRAME DRAFTING PARAMETERS ON YARN FAULTS USING FACTORIAL DESIGN TECCNIQUE

Abstract

Drafting process being the most important operation in ring frame which influences the major quality
parameters of yarn, spinners were becoming increasingly concerned to optimize the parameters of drafting process in
ring frame. Faults in yarn which are considered to be major causes of rejection and down grading of fabric and reduced
productivity in all the downstream processes are largely influenced by ring frame drafting variables e.g. back zone roller
setting, break draft and spacer size. In the present work, the effect of afore said ring frame drafting parameters on
different categories of yarn faults are studied in detail using factorial design technique (Box –Behnken design of
experiment.)