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Method and Apparatus of Manufacturing a Multilayer Absorbing Element for Sanitary Articles:

U.S. Patent No. 12,127,924

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By: Karen McIntyre

Editor, Nonwovens Industry

Marino Di Berardino, Roccamontepiano, Italy; and Fabio Di Berardino, Roccamontepiano, Italy.
Assigned to Texol S.r.L., Alanno, Italy.

Filed: 11/6/18
Issued: 10/29/24

A method for manufacturing a multilayer absorbent element for organic fluids capable of being incorporated into a sanitary article, comprising: deforming a first layer of sheet material by embossing, to obtain in it a plurality of protrusions alternating with a plurality of intermediate zones without said protrusions and substantially planar; overlapping onto said first layer of sheet material a second layer of sheet material; making a plurality of through holes on said first layer of sheet material and on said second layer of sheet material, at said intermediate zones of said first layer; joining together said first layer and said second layer of sheet material in proximity of, or at, the holes of said plurality; wherein said first layer of sheet material is a non-woven fabric (NWF) and said second layer of sheet material is a plastic film, wherein a step of application of a hydrophilic onto said first layer is provided, which hydrophilic agent is applied in proximity of, or at, walls of through holes of said plurality, which hydrophilic agent is a surfactant agent, and wherein said joining step provides a joining between the first layer of sheet material and the second layer of sheet material performed along the perimeter of each through hole of said plurality.

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