Absorbent articles having channel-forming areas and wetness indicator
First Claim
1. An absorbent article having a front edge, a back edge and two longitudinally extending side edges,the absorbent article comprising a topsheet, a backsheet, and an absorbent core between the topsheet and backsheet, andthe absorbent core comprising a core wrap enclosing an absorbent material comprising superabsorbent polymer particles;
- wherein the core wrap comprises a top side and a bottom side;
wherein the absorbent core comprises at least two longitudinally extending channel-forming areas substantially free of absorbent material through which the top side of the core wrap is attached to the bottom side of the core wrap, such that when the absorbent material swells upon absorption of a liquid, the core wrap forms channels along these areas substantially free of absorbent material; and
wherein the absorbent article further comprises a wetness indicator placed between the two channel-forming areas and/or between any of the channel-forming areas and any of the longitudinally extending side edges of the article,wherein the wetness indicator comprises a composition that changes appearance when contacted with urine, the composition comprising a pH indicator and/or a water soluble dye.
1 Assignment
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Accused Products
Abstract
An absorbent article comprising an absorbent core having at least two longitudinally extending channel-forming areas and a wetness indicator. The core wrap comprises a top side and a bottom side, which are attached to each other through areas substantially free of absorbent material, so that when the absorbent material swells upon absorption of a liquid the core wrap forms channels along these areas substantially free of absorbent material. The wetness indicator is placed between the channel-forming areas or between at least one channel-forming area and at least one longitudinally extending side edge of the article, as seen for the exterior of the article.
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Citations
19 Claims
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1. An absorbent article having a front edge, a back edge and two longitudinally extending side edges,
the absorbent article comprising a topsheet, a backsheet, and an absorbent core between the topsheet and backsheet, and the absorbent core comprising a core wrap enclosing an absorbent material comprising superabsorbent polymer particles; -
wherein the core wrap comprises a top side and a bottom side; wherein the absorbent core comprises at least two longitudinally extending channel-forming areas substantially free of absorbent material through which the top side of the core wrap is attached to the bottom side of the core wrap, such that when the absorbent material swells upon absorption of a liquid, the core wrap forms channels along these areas substantially free of absorbent material; and wherein the absorbent article further comprises a wetness indicator placed between the two channel-forming areas and/or between any of the channel-forming areas and any of the longitudinally extending side edges of the article, wherein the wetness indicator comprises a composition that changes appearance when contacted with urine, the composition comprising a pH indicator and/or a water soluble dye. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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19. An absorbent article having a front edge, a back edge and two longitudinally extending side edges, the absorbent article comprising a topsheet, a backsheet, and an absorbent core between the topsheet and backsheet, and
the absorbent core comprising a core wrap enclosing an absorbent material comprising superabsorbent polymer particles; -
wherein the core wrap comprises a top side and a bottom side; wherein the absorbent core comprises at least two longitudinally extending channel-forming areas substantially free of absorbent material through which the top side of the core wrap is attached to the bottom side of the core wrap, such that when the absorbent material swells upon absorption of a liquid, the core wrap forms channels along these areas substantially free of absorbent material; and wherein the absorbent article further comprises a wetness indicator placed between the two channel-forming areas and/or between any of the channel-forming areas and any of the longitudinally extending side edges of the article, wherein the absorbent article has a caliper measured at the core'"'"'s crotch point of from about 0.2 to about 4 mm.
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Specification