An absorbent core comprising a front portion; a back portion; a middle portion positioned between the front portion and the back portion; and a longitudinal axis extending along a length of said core and crossing said front, middle and back portions, the absorbent core having a width extending perpendicular to said length and a perimeter comprising at least two opposing ends and at least two opposing sides positioned between said ends wherein the absorbent core comprises one or more channels having a first shape when the absorbent core is in dry state and a second shape when the absorbent core is in wet state and wherein said first and second shapes are different.

To make it possible to manufacture an absorber having a reinforcing layer sandwiched between a plurality of accumulation layers with simple and compact equipment An accumulation material in an absorber mold at a first accumulation position and a second accumulation position disposed in this order on an outer peripheral surface of a fiber accumulating drum at intervals in a rotational direction of the fiber accumulating drum, and supplying a belt-shaped reinforcing layer formed of a nonwoven fabric or the like, passing over the absorber mold on the outer peripheral surface of the fiber accumulating drum and continuous in the rotational direction of the fiber accumulating drum between the first and the second accumulation positions to form, in the absorber mold, an absorber including a first accumulation layer accumulated at the first accumulation position, a second accumulation layer accumulated at the second accumulation position, and the reinforcing layer sandwiched therebetween.

An absorbent core comprising substantially continuous zones of one or more high fluid distribution structures and discontinuous zones of fluid absorption structures surrounding the one or more high fluid distribution structures, wherein the one or more high fluid distribution structures are arranged to distribute fluid across the absorbent core at a speed that is faster than the speed of fluid distribution across the absorbent core by said discontinuous fluid absorption structures, and wherein said continuous zones extend along a path that is substantially parallel to at least a portion of the perimeter of the core, said portion of the perimeter of the core comprising at least a portion of the sides of the core and one of the ends of the core.

A substantially planar absorbent core (28) extending in a transversal direction (x) and a longitudinal direction (y), and comprising a core wrap (16, 16) enclosing an absorbent material (60) substantially free of cellulose fibers, the absorbent material forming a pattern of discrete absorbent material areas. The pattern comprises transversally-orientated areas (752) and longitudinally-orientated areas (754). The absorbent core may further comprise at least two longitudinally-orientated channel-forming areas (26).

The current invention concerns a forming pocket (10), suitable for forming moulded absorbent material deposit structures to be used as absorbent core for absorbent articles, the forming pocket (10), extending in a longitudinal, transversal and vertical direction (L,T,V), comprises: a grid structure (12) comprising a first set of grid members (18) and a second set of grid members (20), each set of grid members (18,20) comprising a plurality of plates (19,21), each plate (19,21) comprising a plurality of slits (22,26), a supporting frame (30) encasing said grid structure (12), said supporting frame (30) comprising a first set of frame elements (32) forming two opposite longitudinal walls (32) of the supporting frame (30) and a second set of frame elements (34) forming two opposite transversal walls of the supporting frame; a mesh substrate (40) arranged on said upper surface of the grid structure (12), and an insert (48) arranged on the upper surface of the mesh substrate (40), wherein the insert (48) is coupled to the grid structure (12) via movable fixation means (50).

An absorbent article comprising a topsheet, a backsheet, and an absorbent core structure is disclosed, wherein the absorbent structure includes a wearer facing core layer including either a heterogeneous mass layer or a fibrous structure comprising a fibrous network, wherein a portion of the topsheet and wearer facing core layer are integrated such that they at least partially reside in the same X-Y plane.

An absorbent article has a front side, a back side, a longitudinal axis, a liquid permeable topsheet, a liquid impermeable backsheet and an absorbent core between the topsheet and the backsheet. The absorbent core includes a first type of channels, wherein the top side and the bottom side of the core wrap are bonded to another, and a second type of channels, wherein the top side and the bottom side of the core wrap are not bonded or are less bonded to one another in this second type of channels than in the first type of channels. The absorbent material may also include cellulose and superabsorbent particles.

Pulpless absorbent cores and methods of manufacture are disclosed. A first exemplary method may comprise advancing a base carrier sheet in a machine direction, applying a first adhesive onto a top surface of the base carrier sheet, advancing the base carrier sheet within a first particulate material delivery chamber, depositing a first amount of particulate material onto the first adhesive within the first particulate material delivery chamber, applying a second adhesive onto the first amount of particulate material outside of the first particulate material delivery chamber, advancing the base carrier sheet with the first adhesive, the first amount of particulate material, and the second adhesive into a second particulate material delivery chamber, depositing a second amount of particulate material onto the second adhesive within the second particulate material delivery chamber, and applying a top carrier sheet onto the second amount of particulate material.

The present invention is an absorbent structure comprising a fibrous matrix (110), meltfusionable material and superabsorbent polymer particles (140). The absorbent structure is bonded by a meltfusion bond point (200) pattern, which is preferably created by ultrasonic welding.

Pulpless absorbent cores and methods of manufacture are disclosed. A method of forming a pulpless absorbent core may comprise moving a foraminous forming surface having un-masked portions and masked portions in a machine direction, the un-masked portions defining an absorbent core region. The method may further comprise depositing particulate material at a velocity of less than 1200 meters per minute in the absorbent core region while applying a vacuum. The absorbent core region may comprise: a front core region spanning a first half of the absorbent core region and a rear core region spanning a second half, wherein the front core region trails the rear core region in the machine direction, and the masked portions of the foraminous forming surface block airflow through the forming surface to cause greater than 60% of the particulate material deposited in the absorbent core region to locate in the front core region.