ABSORBENT ARTICLE WITH ELASTIC WAIST FEATURE AND ENHANCED ABSORBENCY

• Main Authors: CLEAR, SANDRA, HINTZ, ALEMANY, MIGUEL
• Format: Patent
• Language: English; French; German
• Published: 14.12.1994
• Edition: 5
• Subjects: AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING; BANDAGES, DRESSINGS OR ABSORBENT PADS; 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; HUMAN NECESSITIES; HYGIENE; MEDICAL OR VETERINARY SCIENCE; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; PERFORMING OPERATIONS; PROSTHESES; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR; SHAPING OR JOINING OF PLASTICS; TRANSPORTING; TREATMENT OR PROTECTION OF EYES OR EARS; WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL

Articles absorbants tels que des couches jetables, des slips pour incontinence, des étuis à couches et analogues, présentant des caractéristiques améliorées d'ajustement et de contenance dynamique. La ceinture élastique (35) comprend une zone de panneaux de conformation (136), une zone de panneaux de ceinture (138), ainsi qu'une zone charnière (140) de flexion de la ceinture, prédisposée, souple, réunissant la zone de panneaux de conformation et la zone de panneaux de ceinture afin d'assurer une force/un moment de rétablissement ramenant les zones de panneaux dans leur configuration d'utilisation précédente, notamment lorsque la ceinture élastique a été prétendue par un système de fermeture. Le système de fermeture maintient une tension latérale dans la ceinture élastique, ce qui permet à cette dernière de s'allonger et de se contracter en fonction des mouvements de l'utilisateur. L'article absorbant comprend également de préférence une paire de panneaux latéraux (30) élastiques à contrainte nulle disposée dans la région de la ceinture (58). L'invention concerne également une ceinture élastique (635) à panneaux abodominaux extensibles. L'âme absorbante comprend une âme (1302) d'acquisition/répartion en fibres regidifiées chimiquement, ainsi qu'une âme de stockage (1304). Absorbent article such as disposable diapers, incontinent briefs, diaper holders and the like, that have improved dynamic fit as well as containment characteristics. The elastic waist feature preferably comprises an interconnecting panel zone, a first flexural hinge zone joining the interconnecting panel zone with the containment assembly, an elasticized waistband, and a second flexural hinge zone joining the elasticized waistband with the interconnecting panel zone. The elasticized waistband comprises a shaping panel zone; a waistline panel zone; and a predisposed, resilient, waistband flexural hinge zone joining the shaping panel zone and the waistline panel zone. The waistband flexural hinge zone is predisposed to allow the panel zones to flexurally bend about a defined axis or zone and is resilient to provide a restoring force/moment that returns the panel zones to their preceeding in-use configuration, especially when the elasticized waistband has been pretensioned by a closure system. The closure system dynamically creates/maintains lateral tension through the elasticized waistband thereby allowing the elasticized waistband to more dynamically expand and contract with the motions of the wearer. The absorbent article additionally preferably comprises a pair of elasticized side panels disposed in the second waist region. The elasticized side panels preferably comprise a "zero strain" stretch laminate and an extension panel. The present invention also relates to alternative waist features comprising "an expansive tummy panel" elasticized waistband. The absorbent core comprises an acquisition/distribution core of chemically stiffened fibers and a storage core.