Disposable diaper with anatomical configuration

Claim 1

A disposable diaper of an anatomical configuration having an impermeable backing sheet, a permeable covering and an absorbent structure between said backing sheet and said covering, said permeable covering being fixed to said absorbent structure, characterized by comprising, in combination, a substantially rectangular diaper panel, a three layer absorbent structure comprising a first layer which allows liquid penetration, a second layer which uniformly distributes said liquid and a third layer which retains said liquid, transversely disposed elastic means in the crotch portion, thermo-shrinkable material having elastomeric characteristics in the thigh portions, longitudinally oriented distribution channels, and arched portions between said distribution channels, said first absorbent layer having an area greater than the area of either of said second and third layers and being composed of a mixture of wood pulp with textile fibre, said second layer being thinner than said first layer and said third layer and being composed of a paper skin which results from the wetting of the first and third layers and which fixes said first and second layers to each other, said third layer having the same area as said second layer and being composed of a mixture of wood pulp with synthetic polymers which have super-absorbent characteristics.