Fibre length:
I. Variation in staple length between cotton in mixing should not be exceeding 1.5 mm.
ii. Variation in fibre length will affect every stage of process from blow room to spinning,
iii. At every stage, the control of material depends upon fibre length.
iv. Fluctuations of noil percentage in comber and fly in fly
Frame can be reduced by eliminating short fibre content in mixing.
Fibre fineness and fibre strength:
1. Variation in fineness between cotton in mixing should not
exceed 0.3 (up to 40s, & 0.2 for above 40s.
ii. Variation in fibre strength (g/tex-3mm gauge) between cotton
in mixing should not exceed 2 (up to 40s s* 3 for above 40s.
iii. Fibre fineness and strength affect the yarn strength directly.
iv. Twist variation and CSP variation in yarn can be controlled
by mixing cotton on the basis of closer fibre length and Micronaire reading. tolerance.
Where ultimate strength is required.
Cotton of high fibre strength are" used to get strong yarn and fabric.
Fibre Maturity:
Maturity percentage of different cottons should be considered before mixing, because it will enable the smooth processing.
Trash % in cotton:
