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(11) | EP 0 987 352 A3 |
(12) | EUROPEAN PATENT APPLICATION |
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(54) | Modular meltblowing die |
(57) A meltblowing die includes a die tip having an outwardly projecting triangular nosepiece
defining an apex therealong, a row of hot melt holes spaced along the apex, and air
holes positioned in relation to the hot melt holes to cause at least some of the filaments
discharging therefrom to flare outwardly so that the hot melt filaments deposited
on an underlying moving substrate has a lateral dimension greater than the length
of the row of hot melt holes. The die may be operated to cause t he filaments to be
deposited on the substrate in a side-by-side sinusoidal, stitch-like pattern. |