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(11) | EP 0 401 829 A3 |
(12) | EUROPEAN PATENT APPLICATION |
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(54) | Process and apparatus for forming fibers |
(57) An apparatus (10) for forming a nonwoven web (26) from a fiber forming thermoplastic
polymer resin which includes a reservoir (12) for supplying a quantity of melted fiber
forming thermoplastic resin, a pump (14) for pumping the molten resin to a fiber forming
die (16) and a die for forming a discrete resin stream to flow therefrom. The die
includes a first fluid passageway (20) for forming a stream of fluid, such as air,
in contact with and substantially surrounding the formed flow of resin for a predetermined
distance within the die (16) and an interrupt system (18) for selectively cycling
the flow of resin on and off and clearing the resin from the fiber forming die (16).
A receiving belt (21) collects the fibers (22) formed from the resin flow below the
first fluid passageway (20) spaced at a predetermined distance (A') from the die (16). |