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US 9,375,508 B2Granted
Water disintegratable absorber and absorbent article
AssigneeUnicharm Corporation
InventorsTakayoshi Konishi, Toshiyuki Tanio, Kiyoko Nishimura
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Abstract
An absorber and an absorbent article which have excellent leak proof property during use and water disintegratability after disposal. The water disintegratable absorber includes a water disintegratable absorber layer and a water insoluble resin layer. The amount of water absorption of the water disintegratable absorber layer is 300 g/m2 or more and tear strength in the plan view direction of the water insoluble resin layer is 0.15 N/40 mm or less in a first direction as well as a second direction that is orthogonal to the first direction.
Claims19
An absorbent article comprising:
- a first water-disintegratable sheet that has liquid permeability,
- a second water-disintegratable sheet and
- an absorber situated between the first water-disintegratable sheet and the second water-disintegratable sheet,
- the absorber comprising a laminate of a water-disintegratable absorbent layer and a water-insoluble resin layer and being distinct from the first water-disintegratable sheet and the second water-disintegratable sheet,
- wherein the water-disintegratable absorbent layer has a water absorption of 300 g/m2 or more, and
- the absorber has a tear strength of 0.15 N/40 mm or less measured according to JISK 6772:1994 7.5 in first and second directions on a surface of the water-insoluble resin layer, the second direction being perpendicular to the first direction.
3 more elements
Dependencies are inferred from the claim text.