Adhesive dispensing nozzles for producing partial spray patterns and method

摘要

A system and method for applying fluids (11,13,15,17,19), including fiberized hot melt adhesive, onto a substrate (S) from one or more meltblowing die assemblies (110,112,114,116) mounted on a manifold (120) that supplies fluid thereto. The die assemblies have different configurations of fluid dispensing orifices, wherein various combinations of the different die assembly configurations are mountable onto the manifold (120) to provide a wide range of partial fluid dispensing patterns onto the substrate (S). Each of the fluid dispensing orifices are flanked by an air dispensing orifice disposed on opposing sides thereof, wherein air dispensing orifices may extend across a portion of the remaining portion of the meltblowing die assembly (110,112,114,116) void of fluid dispensing orifices. At least one of the die assemblies having air dispensing orifices arranged relative to the fluid dispensing orifices to increasingly decrease an oscillation amplitude of fluid dispensed from the fluid (11,13,15,17,19) dispensing orifices approaching an endmost fluid dispensing orifice thereof.