US 12,168,076 B2
Absorbent article
Chihiro Kato, Ehime (JP)
Assigned to Daio Paper Corporation, Ehime (JP)
Appl. No. 17/435,464
Filed by DAIO PAPER CORPORATION, Ehime (JP)
PCT Filed Jan. 27, 2020, PCT No. PCT/JP2020/002693
§ 371(c)(1), (2) Date Sep. 1, 2021,
PCT Pub. No. WO2020/195097, PCT Pub. Date Oct. 1, 2020.
Claims priority of application No. 2019-060524 (JP), filed on Mar. 27, 2019.
Prior Publication US 2022/0160927 A1, May 26, 2022
Int. Cl. A61F 13/15 (2006.01); A61F 13/53 (2006.01); A61F 13/534 (2006.01); A61F 13/537 (2006.01); A61L 15/20 (2006.01)
CPC A61L 15/20 (2013.01) [A61F 13/15203 (2013.01); A61F 13/537 (2013.01); A61F 2013/530868 (2013.01); A61F 2013/5349 (2013.01)] 2 Claims
OG exemplary drawing
 
1. A disposable diaper comprising:
a liquid-holding absorber; and
a liquid pervious top sheet on a skin-facing surface side of the absorber, wherein an intermediate sheet formed of an air through nonwoven fabric is provided in the middle between the liquid pervious top sheet and the liquid-holding absorber, which transfers a body fluid that has passed through the liquid pervious top sheet to the absorber,
the liquid pervious top sheet is formed by a hydrophobic nonwoven fabric on a skin side surface, the nonwoven fabric has a plurality of apertures, an aperture size for each of the plurality of apertures is 0.1 to 2.0 mm and an opening ratio of each of the plurality of apertures is 2 to 40%,
an absorbent containing glycerin is provided on a skin side surface of the liquid pervious top sheet, a skin side surface of the intermediate sheet, and a skin side surface of a wrapping sheet wrapping the liquid-holding absorber,
an application amount of the absorbent has a gradient that increases in the order of the skin side surface of the liquid pervious top sheet, the skin side surface of the intermediate sheet, and the skin side surface of the wrapping sheet wrapping the liquid-holding absorber, and
the application amount of the absorbent on the skin side surface of the intermediate sheet is 0.02 g/m2 to 3.00 g/m2.