Imparting aged and faded appearance to cotton textiles - esp. blue denim, by washing in presence of pumice and calcium cpd.

摘要

Method for giving a faded and aged appearance to cotton textiles comprises first washing with hot water to eliminate finishing agents and then treating (in a rotating-drum washing machine) with pumice and lime or a calcium salt. The machine is then exptied and the materials subjected to a series of hot and/or cold water rinses. The rinses are carried out in presence of the pumice and also, for one rinse, of an acid. Pref. the first stage is at 80 deg.C for 10 min. and the machine is rotated at 50-150 rpm. For every 100 kg of textiles, 150-250 kg pumice, 30-100 kg lime or Ca salt and 140-300 l water are used. The method is esp. applied to denim. Treated garments are soft in to the tough and resemble those which have been aged/faded by normal extended wearing.