LOCALIZED APPLICATION OF FINE DENIER FIBERS ONTO A SPUNBONDED WEB FOR OPTIMIZATION OF LEG CUFF HYDROPHOBICITY IN DIAPERS AND PADS

摘要

A DISPOSABLE ABSORBENT ARTICLE THAT EFFECTIVELY PREVENTS THE LEAKAGE OF BODY FLUIDS BEYOND ITS CONFINES. THE ARTICLE (26) OF THE PRESENT INVENTION COMPRISES A BODY (28) HAVING A FIUID-IMPERMEABLE BACKSHEET (34), AN INTERMEDIATE, FIUID-ABSORBING CORE (32), AND A FIUID-PERMEABLE TOPSHEET (30). A PAIR OF LEG CUFF AS$EMBLIES (46, 461) IS ATTACHED TO THE BODY. EACH ASSEMBLY COMPRISES A CUFF STANDING PORTION (48) AND A CUFF BASE PORTION (50). THE ASSEMBLIES ARE COMPOSED OF TWO HYDROPHOBIC NONWOVEN LAYERS A FIRST LAYER (54) IS COMPOSED OF A SPUNBONDED WEB AND A SECOND LAYER (56) IS COMPOSED OF A MELTBLOWN FIBER. THE FIRST LAYER (54) EXTENDS FROM THE FREE, UNATTACHED END OF THE CUFF STANDING PORTION (48) TO THE DISTAL EDGE OF THE ARTICLE DEFINING THE LEG OPENING. THE SECOND LAYER (56) IS PROVIDED WHERE NEEDED AND IN WEIGHTS AS NEEDED TO PROVIDE MAXIMUM ASSEMBLY HYDROPHOBICITY WITH A MINIMUM USE MATERIAL. THIS CONSTRUCTION ALLOWS THE CUFF ASSEMBLIES (46, 46'') TO FORM FIUID-IMPERMEABLE DAMS WHICH PREVENT PASSAGE OF BODY FLUID BEYOND THE ARTICLE ALONG ITS LEG HOLE SIDES.(FIG. 2 & 6)