Segmented slot die for air spray of fibers

Details Segmented slot die for air spray of fibers Segmented slot die for air spray of fibers

B - Operations, Transporting

05

D

B05D 1/14 (2006.01) B05B 7/14 (2006.01) B05C 5/02 (2006.01) B05D 1/12 (2006.01) B05D 5/10 (2006.01) D04H 1/56 (2006.01) D04H 3/16 (2006.01) D06N 3/00 (2006.01)

Patent

CA 2139222

A slot die for producing a fibrous web of adhesive material includes a segmented shim having a plurality of fingers in said slot dividing adhesive material into a plurality of adhesive streams. The fingers have tapered ends which are flush with or extend slightly beyond the slot nozzle outlet. Separate material streams emanate from the slot nozzle outlet where they merge and are en- gaged by air flow producing a fibrous web of adhesive material. The adhesive and air flow are started and stopped at intervals to produce discrete fibrous webs having square, sharp leading and trailing edges.

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