The Procter Gamble Company

Theodore E Farrington, Jr

Eugene Weinshenker

Thurman J Koger, Ii

Milton D Spahni

Thomas Rattray

A disposable absorbent structure for the removal and retention of moisture and/or particulate from a soiled object coming in contact therewith. The structure preferably comprises a macroscopically patterned, three-dimensionally expanded, shear resistant uppermost layer having an object contacting surface and a non-object contacting surface, said uppermost layer exhibiting a pattern of protuberances extending upwardly from a first plane and terminating in a second plane substantially parallel to and remote from the first plane. The uppermost layer further exhibits a multiplicity of discrete apertures in its second plane and is pervious to moisture in its first plane. A moisture absorbent substrate having its uppermost surface coextensive with the uppermost object contacting layer is secured substantially continuously to substantially all of the non-object contacting surface of the uppermost layer. The discrete apertures located in the second plane of the uppermost layer expose the subjacent portions of the moisture absorbent substrate directly to the soiled object when the disposable absorbent structure contacts the object. Under normal use conditions, the portions of the uppermost layer initially located in the first plane and the portions of the uppermost layer initially located in the second plane undergo resilient deformation to move closer toward one another, but do not become coplanar with one another when subjected to compressive loads. When the compressive loads are removed, they move in the direction of their initial positions. Absorbent structures of the present invention function to transfer moisture and/or particulate from a soiled object into the moisture absorbent substrate via the discrete apertures in and/or the moisture-pervious portions of the uppermost layer of the structure. Once moisture and particulate enter the moisture absorbent substrate, they are effectively isolated from objects coming in contact with the structure by the uppermost object contacting layer.

Disposable absorbent mat structure for removal and retention of wet and

The present invention provides a process for debossing and perforating a substantially continuous web of substantially planar thermoplastic film, using a forming structure having a patterned forming surface with holes and an opposed surface. The forming structure is open from the holes in the forming surface to the opposed surface. The forming structure moves in a direction of the length of the web of film and carries the web of film in that direction. The web of film is substantially entirely molten. A fluid differential pressure is substantially continuously applied across the thickness of the web of film from a first position along the direction of movement of the forming structure to a second position. The first and second positions are fixed relative to the moving forming structure. The fluid differential pressure is sufficiently great to cause the first surface of the web of film to be urged against the forming surface and to cause perforations to be created in the web of film. Thus a web of debossed and perforated film is formed in the image of the forming surface from the web of film. Fluid differential pressure holds the web of debossed and perforated film against the forming surface without permitting substantial spring-back of the film. Cooling fluid is applied to the second surface of the web of debossed and perforated film after the film is debossed and perforated and before the web of debossed and perforated film passes the second position. Thus the web of debossed and perforated film is cooled without permitting substantial spring-back of the film and is set by the time the web of debossed and perforated film passes the second position.

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Milford, ME, United States of America

Theodore E Farrington, Jr