11.08.21
Aya Takahashi, Tochigi, Japan; and Yukina Furuhashi, Tochigi, Japan.
Assigned to Daio Paper Corporation, Ehime, Japan.
Filed: 1/29/16
Issued: 8/31/21
An absorbent article comprising a stretchable region stretchable at least in one direction, wherein the stretchable region is formed by stacking an elastic film between a first sheet layer composed of a nonwoven fabric and a second sheet layer composed of a nonwoven fabric, and in a state in which the elastic film is stretched in a stretching and contracting direction of the stretchable region, the first sheet layer and the second sheet layer are joined via through holes formed in the elastic film at a large number of sheet bond portions arranged at intervals in the stretching and contracting direction and a direction orthogonal thereto, and in the sheet bond portions, the first sheet layer and the second sheet layer are joined at least by a melted and solidified material of the elastic film between the first sheet layer and the second sheet layer, wherein fibers of the first sheet layer and the second sheet layer continuing from around the sheet bond portions are left in the sheet bond portions, the first sheet layer and the second sheet layer are joined by the melted and solidified material of the elastic film, which has infiltrated and solidified among the first sheet layer and the second sheet layer, a portion of the first sheet layer and the second sheet layer at the sheet bond portions are melted and a remaining portion of the first sheet layer and the second sheet layer are not melted.
Assigned to Daio Paper Corporation, Ehime, Japan.
Filed: 1/29/16
Issued: 8/31/21
An absorbent article comprising a stretchable region stretchable at least in one direction, wherein the stretchable region is formed by stacking an elastic film between a first sheet layer composed of a nonwoven fabric and a second sheet layer composed of a nonwoven fabric, and in a state in which the elastic film is stretched in a stretching and contracting direction of the stretchable region, the first sheet layer and the second sheet layer are joined via through holes formed in the elastic film at a large number of sheet bond portions arranged at intervals in the stretching and contracting direction and a direction orthogonal thereto, and in the sheet bond portions, the first sheet layer and the second sheet layer are joined at least by a melted and solidified material of the elastic film between the first sheet layer and the second sheet layer, wherein fibers of the first sheet layer and the second sheet layer continuing from around the sheet bond portions are left in the sheet bond portions, the first sheet layer and the second sheet layer are joined by the melted and solidified material of the elastic film, which has infiltrated and solidified among the first sheet layer and the second sheet layer, a portion of the first sheet layer and the second sheet layer at the sheet bond portions are melted and a remaining portion of the first sheet layer and the second sheet layer are not melted.