The Procter Gamble Company

Suna Polat

George Christopher Dobrin

Todd Leon Mansfield

Barry Jay Anderson

Mattias Schmidt

John Ferney McKibben

Cornelia Sprengard-Eichel

Srinivas Krishnaswamy Mirle

Srinivas Krishnaswamy-Mirle

A method is disclosed for modifying the physical characteristics of a web which involves passing the web between at least one pair of interengaged rolls to incrementally stretch the web, and then withdrawing the incrementally stretched web from between the rolls under tension. A web modified according to the disclosed method has desirable breathability and liquid impermeability, as well as extensibility and a soft, cloth-like textured surface.

Breathable and liquid impermeable web and method of making the web

A method is disclosed for modifying the physical characteristics of a web which involves passing the web between at least one pair of interengaged rolls to incrementally stretch the web, and then withdrawing the incrementally stretched web from between the rolls under tension. A web modified according to the disclosed method has desirable breathability and liquid impermeability, as well as extensibility and a soft, cloth-like textured surface. One embodiment of the present invention provides a breathable web comprising a microporous film exhibiting an MVTR of at least about 2000 g/m/24 hr, a dynamic impact value of less than about 10 g/m, a bubble pressure at least about 45 psi, and an air flow of at least about 2 liters/m/s.

Absorbent articles which provide superior protection against wet through under impact or sustained pressure, and high convective air flow therethrough for skin health and comfort benefits. An absorbent article comprising an absorbent core and an absorbent barrier structure, wherein the absorbent barrier structure has a hydrohead value of at least about 10 mBars; a convective air permeability of at least about 10 Darcy/mm; and a liquid impact transmission value of less than about 20 g/m.

Absorbent barrier structures having a high convective air flow rate and articles made therefrom

Absorbent articles which provide superior protection against wet through under impact or sustained pressure, and high convective air flow therethrough for skin health and comfort benefits. In particular, an absorbent article comprising an absorbent core and an absorbent barrier structure, wherein the absorbent barrier structure has a hydrohead value of at least about 10 mBars; a convective air permeability of at least about 10 Darcy/mm; and a liquid impact transmission value of less than about 20 g/m.

A method is disclosed for modifying the physical characteristics of a web which involves passing the web between at least one pair of interengaged rolls to incrementally stretch the web, and then withdrawing the incrementally stretched web from between the rolls under tension. A web modified according to the disclosed method has desirable breathability and liquid impermeability, as well as extensibility and a soft, cloth-like textured surface. One embodiment of the present invention provides a breathable web comprising a microporous film exhibiting an MVTR of at least about 2000 g/m /24hr, a dynamic impact value of less than about 10 g/ m , a bubble pressure at least about 45 psi, and an air flow of at least about 2 liters/m /s.

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Cincinnati, OH, United States of America

Suna Polat