Abstract: A laminated product includes an extruded film of microperforated plastic material with a vacuum perforation process having protuberances extending in a same direction from a same face of the film, with first holes having an average diameter between 100 microns and 300 microns, produced at the vertices of the protuberances, and—a layer of nonwoven fabric mechanically joined by lamination to the film on the opposite face to that on which the protuberances extend, the laminated product being perforated with second through holes having an average diameter between 300 microns and 700 microns.

Abstract: A method for the production of an elastic laminate, comprising the following steps in a same production line: to coextrude a first web of elastic film (F) with at least three layers (F1, F2, F1), comprising at least two different polymer materials, to feed contemporaneously said coextruded first elastic film (F) web and two second nonwoven webs (T1, T2) to a thermal, binding calender (14), wherein the first elastic film web is arranged between said two second nonwoven webs when entering the calender; wherein said first elastic film web, during the movement from the coextrusion step to the thermal binding step, passes from a melted state, in the coextrusion step, to a solidified and cold state when entering the calender, to join, through spot welding in said calender, said second nonwoven webs with respective opposite outer layers of said first elastic film web, thus producing an intermediate web (P1), to stretch mechanically said intermediate web according to a direction transverse to the same web.

Abstract: A method for the production of an elastic laminate, with the following steps in a production line: coextrudeing a first web of elastic film with at least three layers, with at least two different polymer materials, to feed contemporaneously said coextruded first elastic film web and two second nonwoven webs to a thermal, binding calender, wherein the first elastic film web is arranged between said two second nonwoven webs when entering the calender; wherein said first elastic film web, during the movement from the coextrusion step to the thermal binding step, passes from a melted state, to a solidified and cold state when entering the calender, to join, through spot welding in said calender, said second nonwoven webs with respective opposite outer layers of said first elastic film web, thus producing an intermediate web, to stretch mechanically said intermediate web according to a direction transverse to the same web.

Abstract: A laminated product includes an extruded film of microperforated plastic material with a vacuum perforation process having protuberances extending in a same direction from a same face of the film, with first holes having an average diameter between 100 microns and 300 microns, produced at the vertices of the protuberances, and—a layer of nonwoven fabric mechanically joined by lamination to the film on the opposite face to that on which the protuberances extend, the laminated product being perforated with second through holes having an average diameter between 300 microns and 700 microns.

Abstract: A laminated product includes an extruded film of microperforated plastic material with a vacuum perforation process having protuberances extending in a same direction from a same face of the film, with first holes having an average diameter between 100 microns and 300 microns, produced at the vertices of the protuberances, and—a layer of nonwoven fabric mechanically joined by lamination to the film on the opposite face to that on which the protuberances extend, the laminated product being perforated with second through holes having an average diameter between 300 microns and 700 microns.

Abstract: A method for producing a low density perforated web material having a thickness of at least 0.20 mm, comprising the steps of: providing a layer of low density material having a maximum overall weight per square meter of 75 g/m2 or less; and processing the low density material between two rollers pressing onto each other to obtain a low density perforated web material, wherein a first roller has protrusions to perforate the low density material, and a second roller rotates at a different speed from that of the first roller and has projecting parts with contact areas arranged to perforate the material with the protrusions, the contact areas being spaced by recesses to receive the material and having larger contact face dimensions than the protrusions, the recesses leaving an impression in relief on the low density polymer material.

Abstract: The invention describes a multilayer material comprising at least one first layer made of polymeric material having an upper face and a second layer made of closed cell foamed polymeric material having a lower face. The multilayer material comprises through holes which cross both the layers and occupy a surface of between 1 and 40% of the total surface of the upper face of said multilayer material. The multilayer material is advantageously used in an absorbent sanitary article in which the upper face of the first layer is positioned externally so that in use it is in contact with the user's skin and the lower face of the second layer is positioned towards the inside of the sanitary article in contact with other layers of polymeric material.

Abstract: A laminated product includes an extruded film of microperforated plastic material with a vacuum perforation process having protuberances extending in a same direction from a same face of the film, with first holes having an average diameter between 100 microns and 300 microns, produced at the vertices of the protuberances, and—a layer of nonwoven fabric mechanically joined by lamination to the film on the opposite face to that on which the protuberances extend, the laminated product being perforated with second through holes having an average diameter between 300 microns and 700 microns.

Abstract: A laminated product comprising an extruded film of microperforated plastic material with a vacuum perforation process having protuberances extending in a same direction from a same face of said film, with first holes having an average diameter between 100 microns and 300 microns, produced at the vertices of said protuberances, and a layer of nonwoven fabric mechanically joined by lamination to said film on the opposite face to that on which said protuberances extend, said laminated product being perforated with second through holes having an average diameter between 300 microns and 700 microns.

Abstract: A method for the production of an elastic laminate, comprising the following steps in a same production line: to coextrude a first web of elastic film (F) with at least three layers (F1, F2, F1), comprising at least two different polymer materials, to feed contemporaneously said coextruded first elastic film (F) web and two second nonwoven webs (T1, T2) to a thermal, binding calender (14), wherein the first elastic film web is arranged between said two second nonwoven webs when entering the calender; wherein said first elastic film web, during the movement from the coextrusion step to the thermal binding step, passes from a melted state, in the coextrusion step, to a solidified and cold state when entering the calender, to join, through spot welding in said calender, said second nonwoven webs with respective opposite outer layers of said first elastic film web, thus producing an intermediate web (P1), to stretch mechanically said intermediate web according to a direction transverse to the same web.

Abstract: A method for producing a low density perforated web material having a thickness of at least 0.20 mm, comprising the steps of: providing a layer of low density material having a maximum overall weight per square meter of 75 g/m2 or less; and processing the low density material between two rollers pressing onto each other to obtain a low density perforated web material, wherein a first roller has protrusions to perforate the low density material, and a second roller rotates at a different speed from that of the first roller and has projecting parts with contact areas arranged to perforate the material with the protrusions, the contact areas being spaced by recesses to receive the material and having larger contact face dimensions than the protrusions, the recesses leaving an impression in relief on the low density polymer material.

Abstract: The invention describes a multilayer material comprising at least one first layer made of polymeric material having an upper face and a second layer made of closed cell foamed polymeric material having a lower face. The multilayer material comprises through holes which cross both the layers and occupy a surface of between 1 and 40% of the total surface of the upper face of said multilayer material. The multilayer material is advantageously used in an absorbent sanitary article in which the upper face of the first layer is positioned externally so that in use it is in contact with the user's skin and the lower face of the second layer is positioned towards the inside of the sanitary article in contact with other layers of polymeric material.

Abstract: A laminated product comprising —an extruded film of microperforated plastic material with a vacuum perforation process having protuberances extending in a same direction from a same face of said film, with first holes having an average diameter between 100 micron and 300 micron, produced at the vertices of said protuberances, and —a layer of nonwoven fabric mechanically joined by lamination to said film on the opposite face to that on which said protuberances extend, said laminated product being perforated with second through holes having an average diameter between 300 micron and 700 micron.