Abstract: In a method of ultrasonically treating a substance disposed within a container an ultrasonic horn is positioned within the container with at least a portion of the horn submerged in the substance. The horn is ultrasonically excited to thereby ultrasonically energize the substance. An agitating member is rotated within the substance while the ultrasonic horn is excited to agitate the substance as the substance is ultrasonically energized.

Abstract: In a method of ultrasonically treating a substance disposed within a container an ultrasonic horn is positioned within the container with at least a portion of the horn submerged in the substance. The horn is ultrasonically excited to thereby ultrasonically energize the substance. An agitating member is rotated within the substance while the ultrasonic horn is excited to agitate the substance as the substance is ultrasonically energized.

Abstract: In an ultrasonic treatment system for ultrasonically treating a substance, an elongate ultrasonic horn is positionable within the substance and excitable to vibrate ultrasonically to energize the substance. The horn has a longitudinal axis and an outer surface for contact with the substance. An agitating member of the system is disposed on the ultrasonic horn and is rotatable about the longitudinal axis of the horn during ultrasonic vibration of the horn to agitate the substance.

Abstract: In an ultrasonic treatment system for ultrasonically treating a substance, an elongate ultrasonic horn is positionable within the substance and excitable to vibrate ultrasonically to energize the substance. The horn has a longitudinal axis and an outer surface for contact with the substance. An agitating member of the system is disposed on the ultrasonic horn and is rotatable about the longitudinal axis of the horn during ultrasonic vibration of the horn to agitate the substance.

Abstract: A loop material suitable for use in a hook-and-loop fastening system, which loop material includes a bonded carded web having a first side and a second side. The bonded carded web has a basis weight of from about 15 to about 140 grams per square meter and a thickness of from about 1 mm to about 15 mm. The bonded carded web may be thermally pattern bonded. The bonded carded web is composed of fibers having a denier per filament greater than 2, with from 100 to 0 percent by weight of the fibers being thermoplastic polymer fibers and from 0 to 100 percent by weight of the fibers being bicomponent thermoplastic polymer fibers. The first component of the bicomponent fibers has a melting point which is at least about 50.degree. C. lower than the melting point of the second component. The bonded carded web has a plurality of interfiber bonds.