Absorbent cores and methods for forming absorbent cores

• Main Authors: Sina, Joseph J, Niemeyer, Michael, Walbrun, David B, Venturino, Michael B
• Format: Patent
• Language: English
• Published: 21.04.2022
• Subjects: BANDAGES, DRESSINGS OR ABSORBENT PADS; BRAIDING; COTTON-WOOL; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF,TUBULAR STRUCTURES OF THE BODY, E.G. STENTS; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS,NON-WOVEN FABRICS; FILTERS IMPLANTABLE INTO BLOOD VESSELS; FIRST-AID KITS; FOMENTATION; HUMAN NECESSITIES; HYGIENE; KNITTING; LACE-MAKING; MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARYMATERIAL; MEDICAL OR VETERINARY SCIENCE; NON-WOVEN FABRICS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; PROSTHESES; TEXTILES; TREATMENT OR PROTECTION OF EYES OR EARS; TRIMMINGS; WADDING

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.