ABSORBENT ARTICLE CONTAINING A DENSITY GRADIENT IN AT LEAST TWO DIRECTIONS, AND METHOD FOR THE MANUFACTURE THEREOF

• Main Authors: RAQUEL PURISIMA, JENNY VARGAS RUIZ, DOOHONG KIM, CLAUDIO MALAGONI BUIATTI, ROGERIO BANDEIRA BASTOS, JOFY N. PERALTA, CASSIANO FREGAPANI PEREIRA
• Format: Patent
• Language: English; Spanish
• Published: 10.12.2007
• Subjects: 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; PROSTHESES; TREATMENT OR PROTECTION OF EYES OR EARS

An absorbent article includes a liquid permeable cover, a baffle material, and an absorbent structure disposed between the cover and baffle material. The absorbent structure includes a retention zone having a varying density gradient in at least two dimensions and a protection zone having a portion with a density less than a minimum density of the density gradient in the retention zone. The retention zone may be defined in a first region of the absorbent structure having a first basis weight and the protection zone may be defined in a second region of the absorbent structure having a second basis weight that is greater than the first basis weight. Un articulo absorbente incluye una cubierta permeable a liquido, un material separador, y una estructura absorbente colocada entre la cubierta y el material separador. La estructura absorbente incluye una zona de retencion que tiene un gradiente de densidad variable en por lo menos dos dimensiones y una zona de proteccion que tiene una parte con una densidad menor que la densidad minima del gradiente de densidad en la zona de retencion. La zona de retencion puede ser definida en la primera region de la estructura absorbente teniendo un primer peso base y la zona de proteccion puede ser definida en una segunda region de la estructura absorbente teniendo un segundo peso base que es mayor que el primer peso base.