Patent ID: 6599612
Filing Date: 2003-07-29
Classification: A61F,B26F,Y10S,Y10T

Abstract:
A soft and resilient web exhibiting a substantially continuous three-dimensional pattern of macro-apertures, the web comprising a fluid impermeable plastic material, the web having a first surface, a second surface, a multiplicity of micro-apertures and a multiplicity of macro-apertures, whereinthe web has a land area on the first surface and a wall protruding beyond the second surface of the land area, the land area includes a pattern of fine-scale, volcano-like micro-apertures comprising discrete volcano-like surface aberrations and micro-openings, the aberrations protruding from the land area beyond the first surface of the land area, and the micro-opening locating at the top of each aberration, the macro-apertures are defined by the wall, an opening on the first surface surrounded by the wall and an apex opening, and the wall has the micro-apertures thereon, the size of the micro-apertures on the wall is generally smaller than that of the micro-apertures on the land area.