Drying

Key parameters in oven design:

• Circulation of hot air between the ends
• Continuous renovation of air inside the oven
• Gradual increase of temperature to avoid blistering
• Reduced energy consumption & low maintenance cost

HEAT HAS TO BE PROPERLY APPLIED NOT ONLY TO REMOVE WATER BUT ALSO TO ACCELERATE FILM RETICULATION

Evolution of drying scenarios: Traditional

• Horizontal oven with stacked ends transportation

Actual

• Vertical oven with individual transportation of ends trought:
  • Screw (risk of coating scratches and end jams)
  • Chain/ pocket

Trend

• Post heaters with sufficient drying efficiency
  • Low investment cost
  • Low maintenance cost & time
  • Easy change of end diameter