Patent ID: 7568251
Filing Date: 2009-08-04
Classification: D06B

Abstract:
1. A process for dyeing a textile web, said textile web having a first face and a second face opposite the first face, said method comprising: applying dye to the textile web; immersing the dyed textile web in a flowing treatment liquid with the textile web in a generally open configuration, the flowing treatment liquid being different from the dye applied to the textile web, said applying step being performed prior to immersing the dyed textile web in the flowing treatment liquid; immersing a contact surface of an ultrasonic vibration system in said flowing treatment liquid with said contact surface in direct contact with at least a portion of the textile web immersed in the treatment liquid; and operating the ultrasonic vibration system to impart ultrasonic energy to said portion of the textile web immersed in the treatment liquid at said contact surface of the ultrasonic vibration system to facilitate the removal of unbound dye from the textile web for entrainment in the flow of treatment liquid.