Absorbent Core for Use in Catamenial Products

• Main Authors: BUENGER, DANIEL E, HAMMONS, JOHN L, HORNEY, JAMES C
• Format: Patent
• Language: English; French
• Published: 04.02.1993
• Edition: 5
• Subjects: BABY LINEN; BANDAGES, DRESSINGS OR ABSORBENT PADS; CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF,TUBULAR STRUCTURES OF THE BODY, E.G. STENTS; FILTERS IMPLANTABLE INTO BLOOD VESSELS; FIRST-AID KITS; FOMENTATION; HANDKERCHIEFS; HUMAN NECESSITIES; HYGIENE; IMPREGNATING OR COATING OF PAPER; MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OFARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES ORRIBBONS; MEDICAL OR VETERINARY SCIENCE; NATURAL OR ARTIFICIAL THREADS OR FIBRES; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; PAPER NOT OTHERWISE PROVIDED FOR; PAPER-MAKING; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; PRODUCTION OF CELLULOSE; PROSTHESES; PULP COMPOSITIONS; SHIRTS; SPINNING; TEXTILES; THEIR RELEVANT APPARATUS; TRANSPORTING; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; TREATMENT OR PROTECTION OF EYES OR EARS; UNDERWEAR; WEARING APPAREL

Curled, twisted cellulosic fibers are reduced in size by mechanical means, i.e., by refining. The refined fibers are formed into sheets which are used as an absorbent layer in diapers, bandages and, especially, in sanitary napkins. In one mode, the refined fibers can be used to provide shaped sanitary devices. In an optional mode, fibers having intra-fiber capillary channels can be used to direct fluids into absorbent sheets comprising the refined, curled cellulosic fibers.