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公开(公告)号：US20200330286A1
公开(公告)日：2020-10-22
申请号：US16760321
申请日：2018-10-26
Applicant: GDM S.p.A.
Inventor： Marco ROSANI , Matteo PIANTONI , Massimo RAGUSA , Giuseppe POLI , Federico TOSCANI
IPC: A61F13/15 , A61F13/532
Abstract: An apparatus for forming an absorbent pad for an absorbent sanitary article including a first layer, a second layer and an absorbent material interposed between the first and the second layer, includes: a forming drum; a first feed system for feeding to the forming drum a first web, intended to form the first layer; and a second feed system for feeding to the forming drum a second web, intended to form the second layer; at least one spreader for spreading the absorbent material on the forming drum; the first web, the second web and the absorbent material together form a composite web and the forming apparatus includes a system for joining the first and second webs and a system for calibrating the thickness of the absorbent material in the composite web and being located upstream of the joining system in a feed direction V of the composite web.
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公开(公告)号：US20200297545A1
公开(公告)日：2020-09-24
申请号：US16822606
申请日：2020-03-18
Applicant: GDM S.p.A.
Inventor： Marco ROSANI , Matteo PIANTONI , Francesco GIARDINI
Abstract: This invention relates to a device for forming a composite web of an absorbent pad for absorbent articles, such as diapers, comprising an extruding means for extruding a thermoplastic material and a delivery means for delivering superabsorbent polymer material; a suction forming surface is configured to receive the filaments of thermoplastic material blown out of the one or more delivery mouths of the extruding means and to receive the superabsorbent polymer material coming out of the delivery means, to make a composite, meltblown web comprising the superabsorbent polymer material; the delivery means has at least one outlet mouth for feeding superabsorbent polymer material and configured to be movable at least from a first distance to a second distance, or vice versa, relative to the delivery mouth of the extruding means in such a way as to vary the concentration of the superabsorbent polymer material in the composite web.
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公开(公告)号：US20210038441A1
公开(公告)日：2021-02-11
申请号：US16965848
申请日：2019-01-17
Applicant: GDM S.p.A.
Inventor： Federico TOSCANI , Matteo PIANTONI , Andrea DUCHINI , Marco ROSANI
Abstract: An apparatus for forming an absorbent pad for an absorbent sanitary article having a zone free of absorbent material to define a channel of the pad includes a forming drum, a first feed system for feeding a first web, a second feed system for feeding a second web, a spreader for spreading the absorbent material on the drum; a joining system for joining the first and second webs to define the channels. A first dispenser forms on the first web a layer of first adhesive substance according to a spreading pattern having zones free of the first adhesive substance corresponding to the channels. A second dispenser dispenses a second adhesive substance, whose adhesive force is greater than an adhesive force of the first adhesive substance, on the second web according to a pattern having a layer placed at a zone free of the first adhesive substance.
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公开(公告)号：US20200093648A1
公开(公告)日：2020-03-26
申请号：US16563722
申请日：2019-09-06
Applicant: GDM S.p.A.
Inventor： Matteo PIANTONI , Marco ROSANI , Federico TOSCANI , Andrea DUCHINI , Mauro PIETRALUNGA , Aldo FUSARPOLI
IPC: A61F13/15
Abstract: A method for forming an absorbent article including a first absorbent core and a second absorbent core which are superposed on each other, includes feeding a first supporting web along a first feed path in a first feed direction; placing a succession of first absorbent cores on the first supporting web at a preset spacing; feeding a second supporting web along a second feed path in a second feed direction; placing a succession of second absorbent cores on the second supporting web at the preset spacing; coupling the first supporting web to the second supporting web such that each first absorbent core is coupled to a corresponding second absorbent core in a composite web including the succession of first absorbent cores and the succession of the second absorbent cores interposed between the first supporting web and the second supporting web.
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公开(公告)号：US20230142520A1
公开(公告)日：2023-05-11
申请号：US17915309
申请日：2021-03-30
Applicant: GDM S.p.A.
Inventor： Alessandro ZAVALLONI , Matteo PIANTONI , Francesco GIARDINI , Marco ROSANI
IPC: A61F13/514 , A61F13/534
CPC classification number: A61F13/51405 , A61F13/534 , A61F2013/530481
Abstract: A composite web includes a mass of meltblown fibres including an elastomer and a hydrophilic additive, melted and blown together, and a particulate material dispersed among the fibres and at least partly adherent thereto.
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Patent Agency Ranking
公开(公告)号：US20200345558A1
公开(公告)日：2020-11-05
申请号：US16492018
申请日：2018-01-26
Applicant: GDM S.p.A.
Inventor： Matteo PIANTONI , Valerio SOLI , Marco ROSANI , Federico TOSCANI , Giuseppe POLI
Abstract: A method for forming an absorbent pad including a first layer, a second layer and an absorbent material interposed between the first and the second layer and arranged according to a spreading pattern M1 having at least one channel which is free of absorbent material, includes a step of feeding a first web, intended to form the first layer of the pad; a step of feeding a second web, intended to form the second layer of the pad; a step of spreading the absorbent material on the first web according to the spreading pattern M1; a step of joining the first and second webs, a step of removing any absorbent material that may be present in the channel.
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公开(公告)号：US20190076300A1
公开(公告)日：2019-03-14
申请号：US16077260
申请日：2017-01-30
Applicant: GDM S.p.A.
Inventor： Valerio SOLI , Matteo PIANTONI , Mauro PIETRALUNGA , Federico TORDINI , Marco ROSANI
IPC: A61F13/15
CPC classification number: A61F13/15585 , A61F13/15723 , A61F13/15756 , A61F13/15764 , A61F13/49007
Abstract: A method for making absorbent sanitary articles whereby each absorbent article is provided with at least one pair of side tabs. The method includes the steps of feeding a single continuous web with a longitudinal axis towards at least one cutting station where the continuous web is divided, by a succession of cuts transverse to the longitudinal axis, into a first and a second series of side tabs, each of which has an asymmetrical shape and separately applying each rotated side tab of the first series and each side tab of the second series along a continuous strip of a material for making the absorbent articles, in such a way that each rotated tab of the first series is juxtaposed with a respective tab of the second series to define a respective pair of side tabs.
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公开(公告)号：US20220125647A1
公开(公告)日：2022-04-28
申请号：US17427858
申请日：2020-02-11
Applicant: GDM S.p.A.
Inventor： Andrea DUCHINI , Giacomo NOFERINI , Matteo PIANTONI , Gabriele RESMINI , Marco ROSANI , Alessandro SACCOMANI , Maurizio SPATTI
Abstract: A rotary welding device which includes a rotary part rotating about its axis of rotation, one or more supporting elements for supporting a continuous strip, specifically a strip of nappies, supported by the rotary part, and a plurality of welding units, mounted on the rotary part, for welding the continuous strip; each welding unit is configured to pass from a non-operating position to an operating position and vice versa; each welding unit includes a respective welding tip and a respective anvil element which is movable relative to the welding tip; each welding unit includes respective first movement means configured to drive the anvil element in rotation relative to the welding tip from an initial position, where the anvil element is angularly spaced from the welding tip, to a final position, where the surface of the welding tip and the surface of the anvil element are parallel and aligned with each other along the same axis, and vice versa.
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公开(公告)号：US20220000677A1
公开(公告)日：2022-01-06
申请号：US17368314
申请日：2021-07-06
Applicant: GDM S.p.A.
Inventor： Andrea DUCHINI , Aldo FUSAR POLI , Matteo PIANTONI , Gabriele RESMINI , Marco ROSANI , Maurizio SPATTI
IPC: A61F13/15
Abstract: A rotary device for welding a continuous web comprises a rotary unit rotating about a respective axis and welding units for welding the web mounted, angularly spaced, on the rotary unit. A movement device varies a radial position of the welding units. First and second supporting elements supporting the web are disposed, respectively, upstream and downstream of respective ones of the welding units, to keep the web tensioned when the respective welding unit is at an operating position. The first and second supporting elements are supported by a load-bearing structure connected to the welding units in such a way that a radial movement of the welding units corresponds to a movement of the first and second supporting elements towards and away from the axis.
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公开(公告)号：US20180290855A1
公开(公告)日：2018-10-11
申请号：US15767180
申请日：2016-10-20
Applicant: GDM S.p.A.
Inventor： Matteo PIANTONI , Valerio SOLI , Marco ROSANI , Federico TORDINI
Abstract: A unit for applying first and second tabs, obtained from first and second webs, to a chassis web includes an applicator drum rotatable about an axis and including a main body. A plurality of carriers is movable between a lowered position close to the axis and a raised position away from the axis, each including a suction portion. A first carrier first suction and non-suction portions aligned along the axis. A second carrier includes second suction and non-suction portions aligned along the axis. The first suction portions alternate with the second non-suction portions and the first non-suction portions alternate with the second suction portions. A first system holds the first web on the applicator drum upstream of a cutting device. A second system holds the second web on the drum upstream of the cutting device.
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