Throw-away diapers having elongate, absorbent pads, or sections of cellulosic fibers disposed within covering envelopes having a fluid pervious and fluid containing facing cover layer, and a backing cover layer. The absorbent pads have predetermined regions of differing fiber weight through the thickness per unit surface area thereof wherein the greatest weight of fibers through the thickness per unit surface area is included in a predetermined region where it is most needed to retain body fluids. An embossed pattern in the facing layer and underlying absorbent pad defines valleys and ridges in all of the predetermined regions, and the density of the absorbent pad in the valleys is greater than the density of the absorbent pad in the ridges. Absorbent pads in throw-away diapers for use by girl babies comprise an elongate, fluff batt of cellulosic fibers in which an elongate, middle one-third thereof constitutes the predetermined region having the greatest weight of fibers through the thickness per unit surface area. Absorbent pads in throw-away diapers for use by boy babies comprise a main fluff batt and a secondary fluff batt. The elongate, forward one-third of the main fluff batt constitutes the predetermined region having the greatest weight of fibers through the thickness per unit surface area thereof. The secondary fluff batt is disposed forwardly of the main fluff batt and is folded over the main fluff batt during use of the diaper. The elongate, absorbent pads utilized in the throw-away diapers of this invention also constitute a part of the present invention.
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