Two-ply fibrous facing material

Details Two-ply fibrous facing material Two-ply fibrous facing material

1980-10-14

1983-07-12

Cannon, James C.

Surgery

Means and methods for collecting body fluids or waste material

Absorbent pad for external or internal application and...

428198, 428286, 428290, 428296, 428302, 428913, 604375, 4283119, A61F 1316, B32B 706, B32B 2102, B32B 2110

Patent

active

043928617

ABSTRACT:
A delaminatable two-ply diaper facing material is provided in which an outer ply, or layer, is made of irregularly arranged, intersecting, overlapping, mechanically interengaged, loosely assembled natural wood pulp fibers and an inner ply, or layer, contains similarly disposed natural wood pulp fibers and thermoplastic synthetic wood pulp fibers having a melting point lower than that of other fibers in the layer, the latter being in contact with and heat fused with other fibers to provide structural integrity to the inner layer, with fibers in both layers being bonded to each other by a water soluble adhesive binder.
The material is prepared by bringing together the aforementioned layers, applying heat in the absence of pressure to fuse the thermoplastic synthetic wood pulp fibers in the inner layer to each other and to other fibers, introducing a water soluble adhesive binder into the two layers and then drying and curing the binder.

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