All underwear articles out of cotton knitted fabrics are subject to this process, especially the finer they are. This is no signifant problem as long as linen is traditionally dried in the air. This first crops up through the "over-drying” in tumblers. In the meantime, policies in the manufacture of cotton knitted underwear have been drawn up between parties and the Institute for Textile and Processes Technology (IN) Denkendorf. Based on the ITV testing processes, knitted underwear articles that shrink less than 11% are now suitable for the tumbler.
This shrink value (up to 11%) does not influence the correct fit when choosing the right output parameter. All manufacturers generally keep to the value on the products. In the case of cheap articles, a jump of more than 2 sizes can occur during tumbler-drying.
The Relax and Santex dryers used by Schiesser as well as at the tenters, the goods are equipped with the desired shrinking properties and contain a soft, pleasant grip. Single-Jersey, Interlock but even other qualities gain a further shrink-less finishing with the Toptex finishing (cmp. sanforizing) and, furthermore, a fine sheen and even softer grip properties.