Three-dimensional apertured film for transmitting dynamically-deposited and statically-retained fluids
AssigneeTredegar Film Products Corporation
InventorRickey J. Seyler
Life of this patent
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Abstract
A three-dimensional film for use as a transfer layer in an absorbent article has a continuous surface and a discontinuous surface disposed generally parallel to and spaced from said continuous surface; both the continuous surface and the discontinuous surface have large scale apertures defined by sidewalls originating on the surface and extending outwardly therefrom and sized to permit acquisition of fluids by gravity, and optionally each surface also includes small scale apertures sized to acquire fluids by capillary action.
Claims14
A film, comprising:
- a first continuous surface;
- a discontinuous surface disposed generally parallel to and spaced from the first continuous surface;
- a plurality of first drains formed in the first continuous surface, each of the plurality of first drains being defined by a first sidewall extending downwardly from the first continuous surface and terminating in a first aperture at a distal end of the first sidewall;
- a plurality of protrusions extending upwardly from the first continuous surface, each of the plurality of protrusions forming one of a plurality of second continuous surfaces disposed generally parallel to and spaced from the first continuous surface, the plurality of second continuous surfaces collectively forming the discontinuous surface;
- and
- at least one second drain formed in each of the plurality of second continuous surfaces, each of the second drains being defined by a second sidewall extending downwardly from a respective one of the plurality of second continuous surfaces and terminating in a second aperture at a distal end of the second sidewall.
An absorbent article comprising a nonwoven fibrous topsheet having an upper and lower surface;
- an absorbent core;
- and a film between the topsheet and the absorbent core;
- the film comprising:
- a first continuous surface;
- a discontinuous surface disposed generally parallel to and spaced from the first continuous surface;
- a plurality of first drains formed in the first continuous surface, each of the plurality first drains being defined by a first sidewall extending downwardly from the first continuous surface and terminating in a first aperture at a distal end of the first sidewall;
- a plurality of protrusions extending upwardly from the first continuous surface, each of the protrusions forming one of a plurality of second continuous surfaces disposed generally parallel to and spaced from the first continuous surface, the plurality of second continuous surfaces collectively forming the discontinuous surface;
- and
- at least one second drain formed in each of the plurality of second continuous surfaces, each of the second drains being defined by a second sidewall extending downwardly from a respective one of the plurality of second continuous surfaces and terminating in a second aperture at a distal end of the second sidewall.
Dependencies are inferred from the claim text.