Method of and an arrangement for continuous thermal treatment of a textile product web, in particular for dye fixing

摘要

The method of continuous thermal treatment of a textile product with steam simultaneously provides optimum dye fixing and drying of a product web treated with a dye solution. This method includes applying a water solution of a dye to a product web to form a moist product web with the applied dye solution; transporting the moist product web with the applied dye solution through at least one treatment chamber in which the heat treatment takes place; bringing the moist product web with the applied dye solution into contact with a treatment gas including hot steam, preferably at 160-230° C., for preferably from 10 to 30 seconds, to simultaneously perform drying and dye fixing, so that the residual moisture content of the moist product web is less than or equal to its equilibrium moisture content under normal conditions.