IJSR - International Journal of Scientific Research

S.Venkatakrishnan; S.Mukundan

Volume : VI, Issue : V, May - 2017

Studies on Backward and Forward feed in combing processes and its impact on the Quality of Extracted sliver & noil

S. Venkatakrishnan, S. Mukundan

Abstract :

In cotton spinning mills, generally combing is carried out to improve the quality of sliver obtained from the card, by eliminating short immature fies and impurities in order to spun quality yarn out of it. The effect of combing depends on the type of feed and feed length. In the present study, the quality of combed sliver and noil extracted in backward feed & forward feed has been studied by analyzing the quality of combed sliver and noil using the latest Advanced Fie Information System (AFIS PRO2). The results clearly indicate that for a definite length of detaching distance, the short fie removed is higher in backward feed compared to forward feed and thereby an improvement in AFIS 5 % length (up to 3.5%) compared to forward feed (2.0%) due to more combing action because of short feed length. Further there is a good improvement in maturity, reduction in nep count & trash in backward feed compared to forward feed. This study will be more useful for the spinner to select a right type of feed in combing to achieve a desired quality with a minimum of loss of fiber in combing.