Dispensing system using a die tip having an air foil

摘要

A die tip (10) for use in meltblowing liquid material onto a moving substrate (18) having a layer of entrained air moving in a common direction therewith. The die tip includes a base member (80) having a plurality of liquid dispensing outlets (104) for dispensing liquid material toward the substrate (18) and a plurality of air discharge outlets (110) for discharging air toward the liquid material dispensed from the liquid dispensing outlets. The base member includes at least one air deflecting member extending outwardly from the base member and toward the substrate. The air deflecting member (116) is operable to deflect the moving entrained air in a direction away from the air discharge outlets (110) of the meltblowing die tip. The air deflecting member (116) substantially reduces the build up of dust and other debris carried in the entrained air around the air discharge outlets (110) to maintain consistent and reliable operation of the meltblowing die tip <IMAGE>