Absorbent article having a breathable backsheet

A - Human Necessities – 61 – F

Patent

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Details

A61F 13/15 (2006.01) B32B 5/22 (2006.01) B32B 27/12 (2006.01)

Patent

CA 2282270

A disposable absorbent article (20) having a breathable laminate backsheet (26). The absorbent article (20) has a front waist region (46), a rear waist region (44), a crotch region (48) positioned between the front waist region (46) and the rear waist region (44), a pair of opposed side edges (50), a first end edge (52) and a second end edge (52). The absorbent article (20) includes an absorbent core (28) having a pair of opposing longitudinal edges (50), a garment-facing side (70) and a body-facing side (72), and a breathable laminate backsheet (26) disposed adjacent to the garment-facing side (70) of the absorbent core (28). The breathable laminate backsheet (26) has an inner layer (90) and an outer layer (92) joined to one another. The inner layer (90) is positioned between the absorbent core (28) and the outer layer (92). The outer layer (92) is relatively vapor pervious. The inner layer (90) is substantially liquid, vapor and air impermeable. The inner layer (90) is longitudinally coterminous with the absorbent article (20) and of a smaller transverse width than the front waist region (46), the rear waist region (44), and the crotch region (48) so as to form a breathable zone (80) which is longitudinally coterminous with the absorbent article (20) and adjacent to each of the side edges (50).

L'invention concerne un article absorbant jetable (20) comportant une feuille de fond stratifiée imper-respirante (26). L'article absorbant (20) possède une partie taille avant (46), une partie taille arrière (44), une partie fourche (48), disposée entre la partie taille avant (46) et la partie taille arrière (44), deux bords latéraux opposés (50), un premier bord terminal (52) et un deuxième bord terminal (52). L'article absorbant (20) comprend une âme absorbante (28) possédant deux bords longitudinaux opposés (50), un côté vêtement (70) et un côté corps (72), ainsi qu'une feuille de fond stratifiée imper-respirante (26) adjacente au côté vêtement (70) de l'âme absorbante (28). La feuille de fond stratifiée imper-respirante (26) comporte une couche intérieure (90) et une couche extérieure (92) jointes l'une à l'autre. La couche intérieure (90) est placée entre l'âme absorbante (28) et la couche extérieure (92). La couche extérieure (92) est relativement perméable aux vapeurs. La couche intérieure (90) est sensiblement étanche aux liquides, aux vapeurs et à l'air. Ladite couche intérieure (90) rejoint en longueur l'article absorbant (20); sa largeur est inférieure à celle de la partie taille avant (46), de la partie taille arrière (44) et de la partie fourche (48), de manière à former une zone imper-respirante (80) qui rejoint en longueur l'article absorbant (20) et est adjacente à chacun des bords latéraux (50).

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