Kao Corporation

Michiko Otsuka

Jun Sasaki

Mina Tomita

Haruko Toyoshima

Taeko Kanai

A pull-on disposable diaperhas, between a waist openingand leg openings, a regionhaving a width of 15 to 35 mm in each of a front section A and a rear section B. The region, while worn by a wearer, applies a pressure of 1.1 to 2.5 kPa to the wearer's body. With the diaperopened and stretched out, the distance from the longitudinal centerline of the diaper to the widthwise middle of the regionin the front section A is 180 to 220 mm, and the distance from the longitudinal centerline of the diaper to the widthwise middle of the regionin the rear section B is 180 to 220 mm. A waist portion around the waist opening, while worn by a wearer, applies a pressure of 0.3 to 1.5 kPa to the wearer's body.

Pull-on disposable diaper

A disposable diaper () has a waist opening portion and a pair of leg opening portions and contains an absorbent body including a topsheet and an absorbent core. The absorbent core () is composed of a central absorbent member () and a pair of side absorbent members () disposed on both sides of the central absorbent member (). The central absorbent member () is discrete from the side absorbent members () in at least the crotch portion (C). Each side absorbent member has a raising elastic member which is provided near its outboard edge along the longitudinal direction, so that the side absorbent member () rises while worm. The diaper is configured to exert a higher wearing pressure in its regions () that are to be applied to a wearer's body part between the iliac crests and the anterior superior iliac spines than in its waist opening portion while worn.

Growing community of inventors

Tokyo, Japan

Michiko Otsuka