초록 ▼

A die tip for use in meltblowing liquid material onto a moving substrate having a layer of entrained air moving in a common direction therewith. The die tip includes a base member having a plurality of liquid dispensing outlets for dispensing liquid material toward the substrate and a plurality of a

A die tip for use in meltblowing liquid material onto a moving substrate having a layer of entrained air moving in a common direction therewith. The die tip includes a base member having a plurality of liquid dispensing outlets for dispensing liquid material toward the substrate and a plurality of air discharge outlets 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 is operable to deflect the moving entrained air in a direction away from the air discharge outlets of the meltblowing die tip. The air deflecting member substantially reduces the build up of dust and other debris carried in the entrained air around the air discharge outlets to maintain consistent and reliable operation of the meltblowing die tip.

대표청구항 ▼

1. A die tip for use in dispensing liquid material onto a moving substrate having a layer of entrained air moving in a common direction therewith, comprising:a base member having a surface facing the substrate; at least one liquid flow passage formed in said base member terminating in a liquid dispe

1. A die tip for use in dispensing liquid material onto a moving substrate having a layer of entrained air moving in a common direction therewith, comprising:a base member having a surface facing the substrate; at least one liquid flow passage formed in said base member terminating in a liquid dispensing outlet capable of dispensing liquid material toward the substrate; and an air deflecting projection extending outwardly from said surface of said base member and extending toward the substrate, said air deflecting projection being capable of deflecting the moving entrained air in a direction away from said liquid dispensing outlet and toward the substrate.