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

A method of continuous thermal treatment of a textile product with steam, said method comprising the steps of:

• a) applying a dye solution to a product web to form a moist product web with the dye solution applied thereto;
• b) transporting the moist product web with the dye solution applied thereto through at least one treatment chamber;
• c) subjecting the moist product web with the dye solution applied thereto to a heat treatment in the at least one treatment chamber by bringing the moist product web with the dye solution applied thereto into contact with a treatment gas in the at least one treatment chamber;
• wherein said treatment gas comprises a hot steam, whereby dye fixing and drying of said moist product web with the dye solution applied thereto take place simultaneously during the heat treatment, so that said moist product web has a residual moisture content smaller than or equal to an equilibrium moisture content under normal conditions.