111Finishing of Industrial Textiles
© 2008 Taylor & Francis Group, LLC
The goods are extended to full width on a short frame at a higher speed
before reaching the shrinking device. The shrinkage takes place immediately
after passing the hot shoe at a temperature of approx. 180°C. The exural
strength of the ber is decreased, the physical cross-linking is broken, and the
textile material is more easily compressed. Drying takes place immediately
after the subsequent felt calender. The shrinking capacity of this machine is
max. 10%. The degree of shrinkage is determined by the thickness of the felt.
The thicker the felt, the higher the shrinkage capacity. The degree of shrink-
age is regulated by altering the shrinking shoe.
4.2.1.8 Decatizing