Ryoko Kurihara, Tochigi, Japan; Junta Tagomori, Tochigi, Japan; and Mariko Nagashima, Tochigi, Japan.
Assigned to Daio Paper Corporation, Ehime, Japan.

Filed: 9/7/17
Issued: 6/7/22

An absorbent article for incontinence comprising a front-surface sheet and a back-surface sheet with an absorber interposed therebetween, wherein the absorbent article for incontinence is an absorbent article for incontinence for medium or larger volume, which absorbs a urine volume of 20 cc or more; and the front-surface sheet is obtained by applying a water repellent agent to a spunlace nonwoven fabric made of 100% by weight of cotton fiber at an application amount of the water repellent agent of 0.3 to 3.0 parts by weight relative to 100 parts by weight of cotton fiber, has many openings formed in a vertically long shape that is long in the longitudinal direction of the absorbent article for incontinence and penetrating from front to back in a region including an excretion hole corresponding part, has a center emboss extending along the longitudinal direction including the excretion hole corresponding part at a center part in a width direction, the center emboss being a recess-shaped groove that is integrally recessed from the front-surface sheet toward the absorber by compression from an outer-surface side of the front-surface sheet, and has a diffusion area of liquid of 2000 mm2 or less based on a diffusivity test below; wherein, in the diffusivity test: (1) two sheets of qualitative filter paper cut into a size of 100 mm×100 mm are stacked on each other, and a front-surface sheet sample cut into a width of 80 mm×a length of 100 mm is placed thereon; (2) 1 ml of tap water dyed blue is dropped using a pipette from a position 5 mm high from a surface of the front-surface sheet sample; (3) after allowing to stand for 5 minutes, measurement of a diffusion area of a blue-dyed portion that spreads in the front-surface sheet sample is performed; and (4) the measurement is performed three times and an average value thereof is calculated.