Absorbent article with channels and method for manufacturing thereof

An absorbent article comprising a liquid pervious topsheet, a liquid impervious backsheet, and an absorbent core comprising an absorbent material between a top core wrap sheet and a back core wrap sheet, said absorbent core being positioned in between said topsheet and said backsheet,

• said absorbent material comprising at least one of cellulosic fluff pulp and superabsorbent particles,
• said absorbent core having a first longitudinal edge, a second longitudinal edge, a front transverse edge intended to be positioned at a front side of a person, and a rear transverse edge intended to be positioned at a rear side of a person,
• said absorbent core being provided with a plurality of attachment zones where the top core wrap sheet is attached to the back core wrap sheet,
• said absorbent core having a length measured in a longitudinal direction of the absorbent core, between the front transverse edge and the rear transverse edge,
• said absorbent core having a transverse crotch line dividing the absorbent core in a front portion and a rear portion on either side of the transverse crotch line,
• said plurality of attachment zones comprising:
• at least a first and a second elongate attachment zone, said first and second elongate attachment zone extending next to each other, at least in said rear portion of the absorbent core, in the direction of the rear transverse edge;
• wherein a length of the first and the second attachment zone is larger than 5% of the length of the absorbent core;
• at least one connecting attachment zone connecting said first attachment zone with said second attachment zone;
• and
• a third attachment zone extending from the crotch region in the direction of the front transverse edge, wherein seen in a projection on a transverse direction the third attachment zone is located between the first and the second attachment zone, wherein a length of the third attachment zone is larger than 5% of the length of the absorbent core;
• wherein, upon wetting of the absorbent material, a first channel, a second channel, and at least one connecting channel are created at said first attachment zone, said second attachment zone, and said at least one connecting attachment zone, respectively.

An absorbent article comprising a liquid pervious topsheet, a liquid impervious backsheet, and an absorbent core comprising an absorbent material between a top core wrap sheet and a back core wrap sheet, said absorbent core being positioned in between said topsheet and said backsheet,

• said absorbent material comprising at least one of cellulosic fluff pulp and superabsorbent particles,
• said absorbent core having a first longitudinal edge, a second longitudinal edge, a front transverse edge intended to be positioned at a front side of a person, and a rear transverse edge intended to be positioned at a rear side of a person,
• said absorbent core being provided with a plurality of attachment zones where the top core wrap sheet is attached to the back core wrap sheet,
• said absorbent core having a length measured in a longitudinal direction of the absorbent core, between the front transverse edge and the rear transverse edge,
• said absorbent core having a transverse crotch line dividing the absorbent core in a front portion and a rear portion on either side of the transverse crotch line,
• said plurality of attachment zones comprising:
• at least a first and a second elongate attachment zone, said first and second elongate attachment zone extending next to each other, at least in said rear portion of the absorbent core, in the direction of the rear transverse edge;
• at least one connecting attachment zone connecting said first attachment zone with said second attachment zone, wherein said at least one connecting attachment zone comprises a front connecting attachment zone which connects a front end portion of the first attachment zone to a corresponding front end portion of the second attachment zone and a rear connecting attachment zone which connects a rear end portion of the first attachment zone to a corresponding rear end portion of the second attachment zone;
• and
• a third attachment zone extending from the crotch region in the direction of at least one of the front and rear transverse edge, wherein seen in a projection on a transverse direction the third attachment zone is located between the first and the second attachment zone;
• wherein, upon wetting of the absorbent material, a first channel, a second channel, and at least one connecting channel are created at said first attachment zone, said second attachment zone, and said at least one connecting attachment zone, respectively.