A process for treating a substrate comprised of sorptive material is provided herein. The sorptive material may be an absorbent synthetic material such as polyester. The material is designed to be used for cleaning surfaces in an ultraclean environment. The process first comprises unwinding a roll of sorptive material as a substrate into a cleaning system. The cleaning system utilizes several sections. These include a pre-washing section, an acoustic energy washing section, and a drying section. Preferably, the process of moving the substrate through the cleaning system is continuous. The acoustic energy washing section employs one or more acoustic energy generators. In one aspect, the process also includes cutting the substrate into sections to form wipers after moving the substrate through the drying section. Thereafter, the wipers are placed into a bag and the bag is sealed.

A process for treating a substrate comprised of sorptive material is provided herein. The sorptive material may be an absorbent synthetic material such as polyester. The material is designed to be used for cleaning surfaces in an ultraclean environment. The process first comprises unwinding a roll of sorptive material as a substrate into a cleaning system. The cleaning system utilizes several sections. These include a pre-washing section, an acoustic energy washing section, and a drying section. Preferably, the process of moving the substrate through the cleaning system is continuous. The acoustic energy washing section employs one or more acoustic energy generators. In one aspect, the process also includes cutting the substrate into sections to form wipers after moving the substrate through the drying section. Thereafter, the wipers are placed into a bag and the bag is sealed.

An acoustic energy-transfer system includes: an acoustic chest arranged circumferentially around a container configured to receive a material to be processed; and an ultrasonic transducer arranged circumferentially inside the acoustic chest, the ultrasonic transducer defining an acoustic slot extending through the ultrasonic transducer, the acoustic slot angled with respect to a central axis of the acoustic chest.

Disclosed are an apparatus and a method for preparing hemostatic gauze with high stability and absorptivity. The apparatus includes a tank body, a tank cover matching the tank body, stainless steel plates within the tank body, an ultrasonic generator under the tank body, a feed pipe and a liquid outlet, where the tank cover is arranged with an air inlet and an air outlet, and the feed pipe, the air inlet, the air outlet and the liquid outlet are all equipped with a valve respectively.

An acoustic energy-transfer apparatus including: an acoustic chest, the acoustic chest defining an inner chamber sized to receive a material to be processed; and an acoustic device positioned within the acoustic chest and oriented to direct acoustic energy towards the material to be processed. A method for drying a material, the method including: positioning a material in an acoustic chest including an acoustic device; and directing acoustically energized air from the acoustic device at the material within the acoustic chest.

A description is provided of an apparatus for dyeing a textile support comprising a single tank which is provided in its interior, in sequence, with: one first shaped cavity having a watertight function between the surrounding environment and the tank; one first internal partition wall, which is immersed in the lower part in the dye bath of the first shaped cavity for helping the watertight function; one first dyeing compartment and at least one second dyeing compartment which each comprise at least one return roller for the textile support, at least one dispensing device to dispense the dye bath on the textile support, and at least one squeezing device; a second shaped cavity containing the dye bath having a watertight function between the tank and the surrounding environment; and a second internal partition wall, which is immersed in the lower part in the dye bath of the second shaped cavity for helping the watertight.

A description is provided of an apparatus for dyeing a textile support comprising a single tank which is provided in its interior, in sequence, with: one first shaped cavity having a watertight function between the surrounding environment and the tank; one first internal partition wall, which is immersed in the lower part in the dye bath of the first shaped cavity for helping the watertight function; one first dyeing compartment and at least one second dyeing compartment which each comprise at least one return roller for the textile support, at least one dispensing device to dispense the dye bath on the textile support, and at least one squeezing device; a second shaped cavity containing the dye bath having a watertight function between the tank and the surrounding environment; and a second internal partition wall, which is immersed in the lower part in the dye bath of the second shaped cavity for helping the watertight.

Described herein is an antiviral face mask and methods of use thereof to inactivate a virus in contact with the face mask. The face mask may include a fibrous material with silicon nitride powder impregnated therein and a layer surrounding the fibrous material. In some embodiments, silicon nitride is present in the fibrous material at a concentration of about 30 wt. % to about 50 wt. %.

A method for of ultrasonically impregnating nanoparticle into the fabric is provided. Further, systems for use in ultrasonically impregnation of fabrics are also provided.

A method for of ultrasonically impregnating nanoparticle into the fabric is provided. Further, systems for use in ultrasonically impregnation of fabrics are also provided.