Patent ID: 7615675

Claim:
A disposable diaper having a longitudinal axis, a first waist region, a second waist region, and a crotch region interposed therebetween, the disposable diaper comprising: a backsheet; a permeable topsheet joined to the backsheet, the topsheet having an upper body-facing surface and a lower surface, wherein the permeable topsheet comprises two Z-folds parallel to the longitudinal axis; an absorbent core disposed intermediate the backsheet and the topsheet; and a plurality of temperature change elements disposed on the topsheet parallel to and spaced apart from the longitudinal axis, wherein the temperature change elements comprise permeable layers formed by the topsheet, impermeable layers formed by impermeable members disposed within the two Z-folds and interposed between the topsheet and the absorbent core, and a temperature change substance disposed on the topsheet, wherein urine deposited onto the temperature change elements can penetrate through the topsheet in a z direction to the impermeable members and wherein the impermeable members prevent urine from passing completely through the temperature change elements in the z direction and support the movement of urine in an x-y plane to wet the temperature change substance.