Patent ID: 7211709
Filing Date: 2007-05-01
Classification: A61F,Y10T

Abstract:
1. A disposable wearing article comprising: a liquid-pervious topsheet facing a wearer's body; a liquid-impervious backsheet adapted to face a wearer's body; a liquid-absorbent panel interposed between said topsheet and backsheets; a pair of end flaps extending outside longitudinally opposite ends of said panel; and a pair of side flaps extending outside transversely opposite side edges of said panel; wherein said backsheet comprises: a breathable but hydrophobic first fibrous nonwoven fabric layer underlying said panel and covering at least an entire under surface of said panel, a breathable but liquid-impervious plastic film underlying said first fibrous nonwoven fabric and covering at least said entire under surface of said panel, and a breathable but hydrophobic second fibrous nonwoven fabric layer underlying said film and being larger than said film; and wherein, in a zone occupied by said panal, said first fibrous nonwoven fabric layer is intermittently joined to said lower surface of said panel by hot melt adhesive and said film is intermittently joined to one of said first fibrous nonwoven fabric layer and said second fibrous nonwoven fabric layer by hot melt adhesive wherein, in said zone occupied by said panel, said article without said topsheet exhibits a vapor-permeability in a thickness direction of 2000–3800 g/m said film exhibits a vapor-permeability in a thickness direction of 2150–4000g/m in said zone occupied by said panel, said first fibrous nonwoven fabric layer and said film are coated with an amount of said adhesive in a range of 1–10 g/m in the zone occupied by said panel, film is disposed between said first and second fibrous nonwoven fabric layers, said fiilm is intermittently joined only to said first fibrous nonwoven fabric layer, and said film is not joined to said second fibrous nonwoven fabric layer.