Enzyme and Bio-Polishing Treatments for Cellulosic Knits
Enzyme treatments remove surface fuzz, soften the fabric and reduce pilling without the strength loss caused by harsh mechanical finishing.
Below is a working summary of the key decisions, the values worth writing down and the tests that confirm performance.
How cellulase works
The enzyme hydrolyses protruding cellulose fibres, smoothing the surface while leaving the bulk structure intact.
For most programmes the decision is taken during development, when changing the specification still costs nothing more than one sampling round.
Benefits delivered
Softer hand, brighter appearance, reduced pilling and less tendency to fuzz during wear.
State which direction is being measured, because course and wale behaviour differ and both figures are usually needed.
- Record settings and raw material lots for every approved production run
- Check in-process rather than relying on final inspection
- Escalate deviations the same day they appear
Strength risk control
Over-treatment weakens the fabric, so enzyme dose, pH, temperature and time must be controlled tightly.
Set an in-process check at the point where the parameter is created, not at final inspection where correction is expensive.
Inactivation and rinsing
Enzyme activity must be stopped completely, otherwise the reaction continues during storage.
Share the results with the mill, since transparency usually shortens the path to a workable solution.
- Ask for a separate price line for the requirement
- Confirm minimum quantities before committing the colourway
- Build one extra approval round into the calendar
Quality verification
Measure weight loss, tensile or burst strength and appearance after treatment before approving the process.
Keep a buffer in the schedule for one additional approval round, because most programmes use it.
Summary
Handled early, the requirement costs little and protects the launch date; handled late, it becomes an argument about responsibility.
