BlowRoom Formulas :
1. Cleaning efficiency of the blowroom = [ Trash% in cotton - Trash% in lap / Trash% in cotton ] * 100
Fibre Rupture and Nep Generation in Blow room:
1. If 2.5% of span length of lap drops off by more than 4% as compared with that of mixing, fibre rupture could be suspected in the blowroom line.
2. The increase in neps due to processing the cotton has to be kept below 60 -70% for optimal blowroom perfomance.
2 .Nep generation % = [ neps in blowroom lap - neps in mixing / neps in mixing ] * 100