Patent ID: 8093447

Claim:
A disposable diaper having a front waist region, a rear waist region, a crotch region interposed between said front and rear waist regions, said disposable diaper comprising: a liquid-pervious topsheet that defines an inner surface of said diaper to contact skin of a wearer of said disposable diaper and an opposite outer surface; a liquid-impervious backsheet that defines an outer surface of said diaper to contact clothes of said wearer and an opposite inner surface; a liquid-absorbent core positioned between the liquid-pervious topsheet and the liquid impervious backsheet and in contact with the outer surface of the liquid-pervious topsheet and with the inner surface of the liquid-impervious backsheet; and a sweat-absorbent sheet attached to a part of said inner surface of said topsheet of at least said rear waist region as selected from said front waist region, said rear waist region and said crotch region, wherein said sweat-absorbent sheet is exposed to the skin of the wearer and comprises a base sheet formed by a fibrous assembly including water-absorbent fiber, cellulosic fiber included in said water-absorbent fiber, and a quaternary ammonium salt integrated with said base sheet.