METHOD AND APPARATUS FOR PROCESSING CELLULOSE-CONTAINING TEXTILES WITH THE VAPORS FROM AN AZEOTROPIC LIQUID COMPRISING AN ACIDIC CATALYST

摘要

Method and apparatus for finishing cellulose-containing textile material wherein the material is treated with an acid catalyst by contacting the material with the vapor of a liquid azeotropic mixture containing the acid catalyst, and wherein the temperature of the liquid azeotropic mixture is controlled to regulate the amount of catalyst present in the vapor phase for contact with the textile material.