12.11.24
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.
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.
