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

1992-07-08

1995-06-06

Simmons, David A.

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

15624411, 15624421, 156278, 156356, 156578, 264 12, 26421113, 26421114, 425 7, 425 721, 425461, 425464, 427200, 4272071, 4272082, 427422, B32B 3130, B29B 906, B05D 510, B05D 714

Patent

active

054219213

ABSTRACT:
A slot die for producing a fibrous web of adhesive material includes a segmented shim having a plurality of fingers in said slat 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 engaged 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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