Disposable nappy for a baby

Claim 1

A disposable nappy for a baby, comprising a sheet of flexible impermeable material having two longitudinal side edges intended to define opening for the legs of a baby and two transverse end edges intended to define a waist portion, an absorbent pad superimposed on a central region of said impermeable sheet with longitudinal side edges of said pad spaced inwardly from longitudinal side edges of said impermeable sheet, the longitudinal side edges of said impermeable sheet being folded inwardly on themselves and secured to said impermeable sheet along longitudinal junction lines at a distance from the folds to form longitudinally extending tubular sheaths at opposite sides of said nappy, said pad being disposed only on a central region of said impermeable sheet between said longitudinal junction lines, a flexible longitudinal tie located inside each of said sheaths and able to slide therein, said nappy being folded over on itself along longitudinal lines to form a central portion, opposite side portions extending inwardly from first fold lines toward a longitudinal center line of said nappy, and opposite edge portions extending outwardly from second fold lines, said edge portions comprising said sheaths, and means providing access to at least one end of each of said longitudinal ties in order to make it possible to grip the latter manually and tension them to reduce the effective length of said sheaths and thereby press the latter around the baby's legs to give the nappy the shape of a trough between said sheaths.