Abstract:
A system (10) for the application of nanofiber to a substrate (S) includes a tank (12) having an outlet, an agitator (24) disposed in the tank, a pump (14) located at the tank outlet and an applicator (18) disposed proximate to the substrate(S). One or more fluid conduits (16) extend from the tank to the pump and from the pump to the applicator. The fluid conduits are configured so as to minimize bends and interferences. The system includes a controller (20). A nanofiber formulation (N) in a fluid carrier in the tank is pumped from the tank to the applicator for application to the substrate at a predetermined flow rate. The pump (14) is controlled by the controller (20) to vary the output of the pump (14) to match the predetermined flow rate, and the nanofiber formulation is applied by the applicator head (18) at a predetermined coat weight on the substrate. A method for the application of nanofiber to a substrate is also disclosed.
Abstract:
A melt blown system for adding a fine fiber layer to a substrates includes a die assembly, a first channel in the die assembly for carrying a first fluid, a first cavity fluidically coupled to the first channel that is configured to collect the first fluid, a first orifice for carrying a second fluid through the die assembly which is fluidically coupled to a second orifice in the die assembly by at least one channel, a plurality of first nozzles in the die assembly that are fluidically coupled to the first orifice, a plurality of second nozzles in the die assembly that are fluidically coupled to the second orifices, and a plurality of third nozzles in the die assembly that are fluidically coupled to the first cavity.
Abstract:
A system for the application of nanofiber to a substrate includes a tank having an outlet, an agitator disposed in the tank, a pump located at the tank outlet and an applicator disposed proximate to the substrate. One or more fluid conduits extend from the tank to the pump and from the pump to the applicator. The fluid conduits are configured so as to minimize bends and interferences. The system includes a controller. A nanofiber formulation in a fluid carrier in the tank is pumped from the tank to the applicator for application to the substrate at a predetermined flow rate. The pump is controlled by the controller to vary the output of the pump to match the predetermined flow rate, and the nanofiber formulation is applied by the applicator head at a predetermined coat weight on the substrate. A method for the application of nanofiber to a substrate is disclosed.
Abstract:
A melt blown system for adding a fine fiber layer to a substrates includes a die assembly, a first channel in the die assembly for carrying a first fluid, a first cavity fluidically coupled to the first channel that is configured to collect the first fluid, a first orifice for carrying a second fluid through the die assembly which is fluidically coupled to a second orifice in the die assembly by at least one channel, a plurality of first nozzles in the die assembly that are fluidically coupled to the first orifice, a plurality of second nozzles in the die assembly that are fluidically coupled to the second orifices, and a plurality of third nozzles in the die assembly that are fluidically coupled to the first cavity.