Absorbent pad
AssigneeJohnson & Johnson
InventorThomas Christopher O'Connell
Life of this patent
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Abstract
An absorbent pad which comprises a fluid-impervious backing sheet, a fluid-absorbent fabric adhering to one face of the backing sheet, and at least two strips of pressure-sensitive adhesive affixed on edge portions of the other face of the backing sheet for adhering the pad to a substrate, preferably in the form of a unitized underpad wherein the absorbent fabric layer is fully adhesively laminated to the impervious backing sheet. Preferably the adhesive strips are provided in the form of tape bearing pressure-sensitive on both sides thereof, one side of such tape being adhered to the exposed surface of the backing sheet, the adhesive strength on one side of the tape being greater than the adhesive strength on the other side of the tape.
Claims10
An underpad which comprises a fluid-impervious backing sheet, a fluid absorbent fabric fully adhesively laminated to one face of the backing sheet, a fluid pervious facing layer covering the absorbent fabric on the face thereof away from the backing sheet, and at least two strips of pressure-sensitive adhesive affixed on edge portions of the other face of the backing sheet for adhering the pad to a substrate, said pressure-sensitive adhesive being provided with a releasable cover sheet, and said adhesive strips are provided in the form of tape bearing pressure-sensitive adhesive on both sides thereof, one side of such tape being adhered to the exposed surface of the backing sheet, the adhesive strength on said one side of the tape being greater than the adhesive strength on the outer side of the tape.
An underpad which comprises a rectangular fluid-impervious backing sheet about 76 cm long and about 55 cm wide of opaque coloured polyethylene about 25 microns thickness;
- a fluid-absorbent layer, substantially coextensive with and adhesively bonded to said backing sheet, of four-ply unbleached crepe tissue wherein each ply weighs about 25.5 grams per square meter, the two long edges of the backing sheet being folded over the absorbent layer;
- a strip of double-sided pressure-sensitive adhesive tape applied to the major face of the backing sheet opposite the absorbent layer, near and along the length of each long edge of the pad, said strip being covered by an outer silicone impregnated release paper;
- and a facing layer of water repellent nonwoven fabric of about 70 grams per square meter covering the face of the absorbent layer opposite the backing sheet.
Dependencies are inferred from the claim text.