Kao Corporation

Haruko Toyoshima

Yasuyuki Okuda

Jun Sasaki

Harumitsu Toyoda

Mina Tomita

Toshiaki Ichimata

Michiko Otsuka

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.

Disposable diaper

A disposable diaper capable of being put on from either the front or the back of a wearer is disclosed. The longitudinal end section having the fastening tapes has a waist elastic member and an extensible side part. The absorbent member is disposed such that its longitudinal end in the section having the fastening tapes is nearer to the waist portion of that section than the centerline parallel to the diaper width direction and dividing each of the extensible side parts into equal halves. Two portions on opposite sides of the centerline dividing the length of the diaper in equal halves have a saturated absorption capacity ratio of 45/55 to 55/45. The natural length of the waist elastic member in the state removed from the diaper is 60 to 80% of the length of the waist elastic member as provided in the diaper.

Disposable diaper capable of being put on either from the front or the back of a wearer

A disposable diaper capable of being put on from either the front or the back of a wearer. The ratio of the minimum width Wof the crotch section to the whole width Wof the longitudinal end section having the fastening tapes is from 0.30 to 0.75. The minimum width Wis in the area extending from the centerline across the diaper that divides the diaper length in two equal halves toward both the longitudinal end sections thereof by &#xb1;10% of the total length of the diaper. The area ratio S/Sis from 0.45 to 0.60, where Sis the area of each region surrounded by an imaginary straight line L, an imaginary straight line L, and each arched side edge of the crotch section, and Sis the area of each region surrounded by the line L, the line L, and an imaginary straight line L

An absorbent article which is provided with a liquid permeable surface sheet (), a liquid impermeable leakage-prevention sheet () and a liquid-retaining absorbent () interposed between the sheets, is formed substantially oblong, and is provided on the longitudinal opposite sides thereof with a pair of right and left, elastic member-carrying three-dimensional guards (), (), wherein the guards () each has a skin-contacting surface portion (A) formed by folding back a side on the free end () toward the outer side of the diaper, and elastic members in a stretched condition are respectively disposed and fixed to the skin-contacting surface portion (A) and to the approximately widthwise central portion of a raised portion (B) between the skin-contacting surface portion (A) and the base end () of a three-dimensional guard body.

Growing community of inventors

Tochigi, Japan

Haruko Toyoshima