Microapertured polymeric web exhibiting soft and silky tactile impression
AssigneeThe Procter & Gamble Company
InventorsJohn J. Curro, E. Kelly Linman
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AssigneeThe Procter & Gamble Company
InventorsJohn J. Curro, E. Kelly Linman
Estimating the term…
A microapertured polymeric web exhibiting a substantially uniform soft and silky tactile impression on at least one of its surfaces. In a preferred embodiment the present invention relates to webs exhibiting a fine scale pattern of discrete surface aberrations, each of said surface aberrations having its amplitude oriented substantially perpendicular to the surface in which said surface aberration originates. At least one tiny aperture (microaperture) is provided substantially coincidental with the maximum amplitude of each surface aberration. The discontinuity created by the aperture at the peak of each of the surface aberrations substantially reduces the resistance to both compression and shear of each individual surface aberration. In addition the volcano-like edges formed at the periphery of each microaperture are typically in the form of thin, irregularly shaped petals which not only reduce the total contact area with the user's skin, but which are also easily deflected when relative movement with the user's skin occurs. Microapertured webs of the present invention are also relatively quiet when subjected to movement, making them particularly suitable for use as topsheets and/or backsheets in disposable absorbent structures such as adult incontinent briefs.
A microapertured polymeric web exhibiting a soft and silky tactile impression on at least one surface thereof, said silky feeling surface of said web exhibiting a pattern of discrete volcano-like surface aberrations which are not individually discernible to the normal naked eye when the perpendicular distance between said web and the observer's eye is at least about 12 inches, the density of said surface aberrations being at least about 3,600 per square inch, the center-to-center distance between adjacent surface aberrations not exceeding about 25 mils, each of said surface aberrations having its amplitude oriented substantially perpendicular to the surface in which said surface aberration originates and exhibiting a maximum cross-sectional dimension not exceeding about 20 mils, as measured perpendicular to its amplitude, the end of each of said surface aberrations further including at least one microaperture substantially coincidental with its point of maximum amplitude, said microaperture exhibiting a multiplicty of thin, irregularly shaped petals about its periphery, said microaperture further creating a discontinuity which reduces the resistance to compression and shear of each of said surface aberrations as well as the degree of contact with the observer's skin, whereby the tactile impression of said web is pereived as generally soft and silky.
Dependencies are inferred from the claim text.