Patent ID: 9220642
Filing Date: 2015-12-29
Classification: A61F

Abstract:
1. An absorbent article having a top sheet, a backsheet, and an absorber which is disposed between the top sheet and the backsheet, the absorbent article being folded and individually packed along at least a widthwise direction, said absorbent article comprising: a wing unit which is extensive at each outside in the widthwise direction of the absorbent article; a leakage preventing wall which has an elastic member arranged along a longitudinal direction of the absorbent article and which, when the absorbent article is worn, is configured so as to be erected from a non-skin contact surface side of the absorbent article toward a skin contact surface side of the absorbent article; and at least one annular compression groove which is provided at the skin contact surface side of the absorbent article, wherein: the absorber has a heightened middle unit which is larger in thickness than a peripheral unit; the leakage preventing wall has: a fixing unit which is fixed at the skin contact surface side of the absorbent article at an end part in the longitudinal direction in order to restrain erection of the leakage preventing wall; and an erection unit which is configured so that the leakage preventing wall is erected inside in the longitudinal direction more than the fixing unit; the heightened middle unit is disposed inside in the longitudinal direction more than the wing unit; a fold position is provided in proximity to a base portion of the wing unit; an end part in the longitudinal direction of the compression groove is configured so as to be disposed outside in the longitudinal direction more than an end part in the longitudinal direction of the erection unit; the end part in the longitudinal direction of the erection unit and a site at which a dimension in the widthwise direction is the greatest in the compression groove are disposed in proximity to the base portion of the wing unit; the leakage preventing wall is bonded with the to sheet by means of a heat seal which is continuously disposed along the longitudinal direction at the erection unit; the heat seal is curved toward an inside of the absorbent article at each end part in the longitudinal direction at a plan view of the absorbent article; the compression groove has: a first compression groove which is formed in an annular shape; and a second compression groove which is formed in an annular shape and which is disposed inside of the first compression groove; and the curved portion of the heat seal extends toward an end part in the longitudinal direction of the first compression groove in a position in the longitudinal direction close to an end part in the longitudinal direction of the second compression groove.