Kao Corporation

Tetsuya Kusagawa

Mitsugu Hamajima

Minoru Nakanishi

Hironori Kawasaki

Yasuhiro Y Yamamoto

Kazumichi Masaki

Eichi Ichikawa

Atsushi Murai

Mari Kaganoi

Yoshihito Kubota

Yasuo Toyoshima

Yoji Kameo

Jinko Noguchi

Miyuki Kondo

Akihiko Saka

Yuji Yana

An absorbent article includes an elongate absorbent body and a pair of left and right rear wing portions disposed at longitudinal opposite left and right sides of the absorbent body in a rear zone thereof. Each of the rear wing portions includes a liquid-retentive wing absorbent core. Furthermore, an absorbent article includes an elongate absorbent body and a pair of left and right wing portions disposed at longitudinal opposite left and right sides of the absorbent body. Each of the wing portions includes a laminated sheet formed by laminating at least two sheet materials and the two sheets of material are bonded to and along opposite side edges of the absorbent body with an adhesive agent except for non-coated linear areas of a predetermined width formed on the wing portions.

Absorbent article including rear wing portions

An absorbent articlehaving a liquid retentive absorbent layer and a liquid impermeable leak preventive layer and including, in its longitudinal direction, an excretion portion facing section A which is placed opposite a wearer's liquid excretion portion, when in wear, and a rear section B which is placed more on the back side than the excretion portion facing section A, when in wear, wherein a leak preventive wallis disposed on opposite side portions in the longitudinal direction, the leak preventive wallhaving a basal wall portion and a planar elastic expansible/contractible portion connected to an upper end portion of the basal wall portion and being raised in the excretion portion facing section A and in the rear section B, and wherein a distance from an upper end portion of the basal wall portion to the leak preventive layer in the rear section is shorter than a comparable distance in the excretion portion facing section A.

Absorbent article

An absorbent article () having a liquid-retentive absorbing layer (), a liquid-impermeable leakproof layer (), and standing gathers () on each side. The gathers have an elastically extensible portion () coming into planar contact with the wearer's skin while worn. The elastically extensible portion () is made of a sheet () and at least one elastic member (), the elastic member () being fixed to the sheet () discretely in the longitudinal direction in its stretched state, and the parts of the sheet where the elastic member () is not fixed are raised by contraction of the elastic member () to form a plurality of hollow ridges () on the side of the elastically extensible portion () to be brought into contact with the wearer's skin.

The absorbent sheet comprising at least hydrophilic fibers and thermally fusible bonding fibers or a strengthening assistant, and a superabsorbent polymer is characterized in that:

Absorbent sheet, process for producing the same, and absorbent article

A substantially elongated absorbent article having a liquid permeable topsheet, a liquid impermeable backsheet, an absorbent member interposed between the topsheet and the backsheet, and a pair of hydrophobic areas along opposing longitudinal side portions of an upper surface of the absorbent article inwardly from longitudinal side edges of the absorbent article, the hydrophobic areas each having a continuous or discontinuous antileakage groove formed along a respective one of the longitudinal side portions, wherein a width of each of the antileakage grooves is from 0.1 mm to 20 mm, a ratio of a depth of each of the antileakage grooves with respect to a thickness of a portion of the absorbent article where no antileakage groove is formed is from 0.01 to 0.8, and the depth of each of the antileakage grooves is from 0.1 mm to 12 mm.

The absorbent sheet comprising at least hydrophilic fibers and thermally fusible bonding fibers or a strengthening assistant, and a superabsorbent polymer is characterized in that the superabsorbent polymer is not present on an absorbent surface of the absorbent sheet for absorbing liquid but distributed inside the absorbent sheet, and is adhered and fixed to the hyrophilic fibers constituting the absorbent sheet, the superabsorbent polymer is spread at an amount of 5 to 300 g per 1 m.sup.2 of the absorbent sheet and the absorbent sheet has thickness of 0.3 to 1.5 mm.

Growing community of inventors

Tochigi-ken, Japan

Tetsuya Kusagawa