Weaving and Processing Tips for Air Jet Yarns

  • Warping – Needs no adjustment, because of low strength CV % warp breakages are practically nil. Warping can be at very high speeds upto 1200 meters per minutes

  • Sizing – Stretch ratio should be reduced to 0.6 to 0% (i.e. practically no stretch)

  • Weaving – Reduce density of weft yarn (pick / inch) by 3%. Because of very good evenness, low imperfections and CV% of count and strength, looms can be worked upto 650 picks per minute and hence so there is tremendous gain in loom efficiency

  • Because of low shrinkage of Air Jet Yarns, the fabric should be processed with minimum tension on warp

  • Jet scouring is preferred as compared to jiggers (more relaxation time will give better results)

  • During drying there should be an overfeed of 4-6%

  • Use of silicon based softener, non-ionic or cationic softener will give cotton-touch handle

  • For better results in processing, following sequences are recommended:

    • Pre-treatment
    • Wetting detergent of cationic detergent

    • Sacrating Agent Aebatex FFC 0.3gms/litre

    • CIBA FLUID 'C'- 1.5 gm/litre .6 Scouring preferably Jet Scouring

  • Hot wash followed by cold wash

  • Jet Dyeing

  • Stretch drying at stenter

  • Temperature - 180oC Exposure - 25 to 30 seconds Over Feed - 4 to 5 %
  • Finishing with Cationic softener 5 to 10gms per litre and Micro Amino 25 to 30gms per litre. If extra soft handle of fabric is required, weight reduction process varying from 6% to 12% is recommended

  • Avoid singeing. Mild singeing can be done at high speeds and low exposure because the hairiness in Air Jet Yarn is already low