Dyeing with reactive dyestuffs

Econtrol

Econtrol

Dyeing with reactive dyestuffs

With the trend towards smaller lot sizes per colour in continuous dyeing and the requirement for simple processes, the Econtrol® process for reactive dyestuffs was developed in the mid-nineties. It has now established itself with DyStar technology worldwide.

The Econtrol® process is a simple, quick and economical one-pass pad – dry – wash off continuous dyeing process with drying in a hot flue at 120-130° C and controlled humidity (25-30% by volume) to obtain fixation in 2 - 3 minutes.

Benefits:

  • Ideal choice for short or long lot dyeing
  • Full colour range
  • Excellent reproducibility of colours
  • No risk of browning of cellulose fibres thanks to low fixation temperature – bright colours possible
  • No urea – no fumes – no machine contamination
  • No salt (easy wash-off of unfixed dyestuff)
  • Instant colour viewing
  • Accurate, easy and rapid laboratory check method
  • No unproductive batching sequences, no moiré effects
  • Migration minimised by rapid fixation and humidity control
  • No crushing of pile fabrics (e.g. corduroy)
  • Improved penetration of difficult fabrics due to presence of humidity during fixation
  • Energy-efficient thanks to optimum humidity control
  • Ideal process for fast change technology

Econtrol® is a registered trademark of DyStar.