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US 12,239,517 B2Granted
Absorbent article with main and auxiliary absorption layers
AssigneeDaio Paper Corporation
InventorMizuki Ri
Life of this patent
Estimating the term…
Abstract
An absorbent article in which an absorber includes an upper auxiliary layer disposed on an uppermost portion and a main absorption layer disposed on a back surface side of the upper auxiliary layer, and the upper auxiliary layer includes a super absorbent nonwoven fabric having a surface exposed to an uppermost surface of the absorber and having a Klemm water absorptiveness of 100 mm or more.
Claims8
An absorbent article comprising:
- an absorber;
- and a liquid pervious top sheet disposed on a front surface side of the absorber, wherein
- the absorber includes an upper auxiliary layer disposed on an uppermost portion and a main absorption layer disposed on a back surface side of the upper auxiliary layer, and
- the upper auxiliary layer includes a super absorbent nonwoven fabric having a surface exposed to an uppermost surface of the absorber and having a Klemm water absorptiveness of 100 mm or more;
- the main absorption layer is a cell absorbing sheet including:
- a liquid pervious upper sheet and a liquid pervious lower sheet,
- a middle sheet made of a nonwoven fabric interposed between the upper sheet and the lower sheet;
- a plurality of cells arranged at intervals and surrounded by bonded portions of the upper sheet and the lower sheet in which the upper sheet and the lower sheet are not bonded to each other, and
- a particulate material comprising main layer super absorbent polymer particles contained in the cells,
- by embossing, a concave that is recessed to the outside of the cell is formed in a portion located at each cell in the upper sheet,
- the middle sheet is compressed in a thickness direction at a portion located at the bonded portion and bulges up so as to enter the inside of the concave at a portion located in the cell,
- a surface of the middle sheet facing the concave is in contact with an internal surface of the concave or a separation distance of thereof is 30% or less of the depth of the concave, and
- the main layer super absorbent polymer particles are pressed against the upper sheet by the middle sheet.
10 more elements
Dependencies are inferred from the claim text.