Patent ID: 8344203

Claim:
A three-dimensional formed film comprising protuberances, each protuberance having sidewalls and a bottom wall, the protuberances originating on a first surface of the film, the sidewalls being oriented nominally perpendicular to the first surface of the film and nominally parallel to a z-direction axis of the film, the bottom wall being disposed substantially perpendicular to the sidewalls, a plurality of the protuberances having an aperture in at least one sidewall, the aperture having an average cross-sectional area greater than 0.2 mm 2 and an average hydraulic diameter between 0.55 mm and 1.2 mm; said three-dimensional film further comprising a first plurality of capillaries, said first plurality of capillaries having an average diameter of 50 microns to 400 microns, wherein the average length of the capillaries, as measured in a z-axis direction of the film, is substantially equal to or greater than an average length of the sidewalls.