Side-by-side absorbent pad forming

Plastic and nonmetallic article shaping or treating: processes – Forming articles by uniting randomly associated particles – Stratified or layered articles

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Details

264517, 264113, 264116, 425 801, 425 811, 425 821, B27N 304, A61F 1315

Patent

active

057628440

ABSTRACT:
A distinctive method and apparatus (20) for forming a composite fibrous web (22) includes a web supply (24, 25), which provides at least two appointed fiber layer sections (26, 28) of desired fiber material. Each of the layer sections (26, 28) has a selected composition. A fiberizer (30) disintegrates each of the fiber layer sections (26, 28) into individual, laterally adjacent fiber streams (32, 33) while substantially maintaining a lateral separation of the fiber streams while the fiber streams (32, 33) are moving through the fiberizer (30). A directing channel (34) delivers the fiber streams (32, 33) from the fiberizer (30) to a forming chamber (40). The forming chamber (40) is configured to substantially maintain the separation of the fiber streams. A foraminous forming surface (48) is disposed within the forming chamber (40), and is configured to receive each of the fiber streams (32, 33) to produce individual, fibrous web sections (76a, 76b) substantially corresponding to the individual fiber streams (32, 33). A transporter (60) removes the fibrous web sections (76a, 76b) from the forming surface (48), and an integrator (62) laterally displaces and superposes one of the fibrous sections (32, 33) onto another of the fibrous web sections to provide the composite fibrous web (22).

REFERENCES:
patent: 4666647 (1987-05-01), Enloe et al.
patent: 4761258 (1988-08-01), Enloe et al.
patent: 4767586 (1988-08-01), Radwanski et al.
patent: 4904440 (1990-02-01), Angstadt
patent: 4921659 (1990-05-01), Marshall et al.
patent: 5004579 (1991-04-01), Wislinski et al.
patent: 5093963 (1992-03-01), Farrington et al.
patent: 5591148 (1997-01-01), McFall et al.

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