Abstract:
Apparatus for the continuous treatment of webs of textile materials or similar materials in hot liquids, wherein the web and the liquid travel at equal speeds during the treatment with the web floating in the liquid, and wherein the ratio by weight of liquid to the web is between about 10:1 and 50:1, the main features being the introduction of the web into the treatment liquid in irregular, preferably crimped shape, and not in pleated shape, through a port of larger width than the width of the treatment path and at a higher speed than the one at which web and treatment liquid travel during the treatment proper, thereby causing a banking up of the liquid and the web therein, to a thicker sheet, and further subjecting the surface of the web in all its parts to convective or turbulent currents effected in the treatment liquid to bring about a change of shape in said surface parts of the web.
Abstract:
A dye-fixing process which follows the treatment of lengths of materials containing synthetic fibers, such as polyester and polyamide fibers, with dyes, including dispersion dyes, said process comprising the steps of heating a dried dye-carrying length of material with pure steam or a steam-air mixture containing over 75 percent steam by volume by condensation of steam to a saturation temperature of substantially 90* to 100* C., then heating said length of material with media having heattransmission values of at least 50 k. cal./m2/*C. /h. by a heating curve which is a continuously increasing temperature of the fabric and which approaches asymptotically and then reaches a fixing and treating temperature of at least 150* C., the heat flux being determined by measuring temperatures, duration, length surfaces as well as average flow amounts and speeds, and then subjecting the material to a continuous thermostorage treatment at said treating temperature for a time period ranging between 10 and 100 seconds.
Abstract:
A process for the continuous liquid treatment of wide webs of textile material with hot treating liquids such as dye solutions, includes bringing the treating liquid to a predetermined effective treatment temperature prior to its application to the web, applying to each unit length of a moving textile web an approximately equal amount of treating liquid, moving the web and liquid in the same direction during treatment, and for a sufficient time to cause substantial exhaustion of the treating agent from the liquid, the weight ratio of liquid to web being between about 10:1 and 20:1.