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U.S. Patent No. 12,569,374
Lucas Bäck, Gothenburg, Sweden.
Assigned to Essity Hygiene and Health Aktiebolag, Gothenburg, Sweden.
Filed: 2/28/22Issued: 3/10/26
An absorbent article comprising an absorbent core, the absorbent core comprising absorbent material, the absorbent core being enclosed by a liquid-permeable core cover, the core cover comprising an upper core cover layer and a lower core cover layer, the absorbent article and the absorbent core having a longitudinal direction and a transverse direction perpendicular to the longitudinal direction, with a longitudinal center line extending in the longitudinal direction, the absorbent core having a first side edge and a second side edge, the first side edge and the second side edge of the absorbent core having a main extension in the longitudinal direction, and a first end edge and a second end edge, the first end edge and the second end edge having a main extension in the transverse direction, the upper core cover layer and the lower core cover layer being connected in a first side seal extending along the first side edge of the absorbent core and in a second side seal extending along the second side edge of the absorbent core, the absorbent core comprising one or more channels extending in the longitudinal direction at a distance from each of the first side seal and the second side seal, each of the one or more channels being free or substantially free from absorbent material and having a channel seal extending therein, the channel seal joining the upper and lower core cover layers of the core cover within the channel, wherein a seal strength of the channel seal is higher than a seal strength of each of the first and the second side seals of the absorbent core.
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