Fiber & Raw Material Engineering
Immature fibre causes neps and dye barre. Separate maturity from fineness before blaming micronaire.
— M
1.0 is fully mature; below 0.8 signals processing risk
Check that the three fibre counts total 100%. Maturity ratio below 0.75 typically produces visible neps and dye pinholes regardless of micronaire.
Maturity Ratio & Fineness Converter — free, with the formula and a worked example, at Textile School.