Topsheet for use in disposable body fluid absorptive articles

Details Topsheet for use in disposable body fluid absorptive articles Topsheet for use in disposable body fluid absorptive articles

1994-03-21

1995-09-12

Green, Randall L.

Surgery

Means and methods for collecting body fluids or waste material

Absorbent pad for external or internal application and...

604358, 604366, 604370, 604375, 604378, 6043851, A61F 1315, A61F 1320

Patent

active

054493528

ABSTRACT:
A topsheet for use in body fluid absorptive articles is so improved that collapse and clogging of liquid passages therein may be reliably avoided. The topsheet includes an upper sheet, provided with skin-contacting areas and liquid passages, and a lower sheet provided with skin-non-contacting areas, areas welded to the liquid passages, and exposed areas. The exposed areas are welded to each of the liquid passages around lower openings thereof so as to protect the liquid passage against collapse and clogging. The exposed areas define a skin-contacting surface which rises up into each of the liquid passages without extending above the upper surface of the skin-contacting areas. The upper sheet cooperates with the lower sheet to define cavities extending in the direction of the topsheet thickness.

REFERENCES:
patent: 4397644 (1983-08-01), Matthews et al.
patent: 4634440 (1987-01-01), Widlund et al.
patent: 5342334 (1994-08-01), Thompson et al.
patent: 5352217 (1994-10-01), Curro
patent: 5383870 (1995-01-01), Takai et al.
patent: 5387209 (1995-02-01), Yamamoto et al.

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