01.06.22
Aiko Onda, Utsunomiya, Japan; and Ryota Kuramae, Utsunomiya, Japan.
Assigned to Kao Corporation, Tokyo, Japan.
Filed: 12/6/17
Issued: 11/30/21
An absorbent article comprising an absorbent assembly including a topsheet, a backsheet, and an absorbent core interposed between the topsheet and the backsheet, the absorbent article having an article longitudinal direction extending from a front region to be arranged on a front side of a wearer toward a rear region to be arranged on a rear side of the wearer, and an article lateral direction orthogonal to the article longitudinal direction, wherein: the absorbent core is formed of a sheet-like article including a plurality of absorbent units, each of the plurality of absorbent units including a long base portion having a lateral direction, a longitudinal direction that is longer than the lateral direction, and a thickness direction, and water-absorbent polymer particles that are fixed to a surface of at least one face of the long base portion, the absorbent units being arranged such that the absorbent unit’s longitudinal direction is oriented in the article longitudinal direction; the sheet-like article includes a plurality of unit portions arranged in the longitudinal direction, each of the plurality of unit portions including a plurality of the absorbent units arranged side by side in the lateral direction; the sheet-like article includes a pair of longitudinal joined regions extending in the longitudinal direction at respective lateral sides which are along the longitudinal direction, a pair of lateral joined regions extending in the lateral direction at respective end portions in the longitudinal direction, and an intermediate lateral joined region extending in the lateral direction between the lateral joined regions; and the sheet-like article is joined at the longitudinal joined regions, the lateral joined regions, and the intermediate lateral joined region to a constituent member that constitutes the absorbent article and that is adjacent on at least either an upper side or a lower side in the thickness direction, and each of the unit portions includes a section in which neither the upper side nor the lower side thereof in the thickness direction is joined to the constituent member.
Assigned to Kao Corporation, Tokyo, Japan.
Filed: 12/6/17
Issued: 11/30/21
An absorbent article comprising an absorbent assembly including a topsheet, a backsheet, and an absorbent core interposed between the topsheet and the backsheet, the absorbent article having an article longitudinal direction extending from a front region to be arranged on a front side of a wearer toward a rear region to be arranged on a rear side of the wearer, and an article lateral direction orthogonal to the article longitudinal direction, wherein: the absorbent core is formed of a sheet-like article including a plurality of absorbent units, each of the plurality of absorbent units including a long base portion having a lateral direction, a longitudinal direction that is longer than the lateral direction, and a thickness direction, and water-absorbent polymer particles that are fixed to a surface of at least one face of the long base portion, the absorbent units being arranged such that the absorbent unit’s longitudinal direction is oriented in the article longitudinal direction; the sheet-like article includes a plurality of unit portions arranged in the longitudinal direction, each of the plurality of unit portions including a plurality of the absorbent units arranged side by side in the lateral direction; the sheet-like article includes a pair of longitudinal joined regions extending in the longitudinal direction at respective lateral sides which are along the longitudinal direction, a pair of lateral joined regions extending in the lateral direction at respective end portions in the longitudinal direction, and an intermediate lateral joined region extending in the lateral direction between the lateral joined regions; and the sheet-like article is joined at the longitudinal joined regions, the lateral joined regions, and the intermediate lateral joined region to a constituent member that constitutes the absorbent article and that is adjacent on at least either an upper side or a lower side in the thickness direction, and each of the unit portions includes a section in which neither the upper side nor the lower side thereof in the thickness direction is joined to the constituent member.