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公开(公告)号：US10849796B2
公开(公告)日：2020-12-01
申请号：US16163722
申请日：2018-10-18
IPC分类号： A61F13/532 , A61F13/15 , A61F13/539 , A61F13/534
摘要： An apparatus for manufacturing absorbent cores for absorbent sanitary articles, comprising: a rotating forming wheel including a plurality of forming elements defining a peripheral surface of the forming wheel, a forming chamber containing absorbent material facing a portion of the peripheral surface of the forming wheel, a first roller for feeding a first nonwoven web onto the peripheral surface of the forming wheel upstream of the forming chamber, a second roller for feeding a second nonwoven web onto the peripheral surface of the forming wheel downstream of the forming chamber, wherein each of said forming elements comprises a suction surface connected to a suction source and at least one protruding rib having a blowing surface selectively connected to a stationary blowing device, wherein said at least one blowing surface and said suction surface are spaced apart from each other in a radial direction.
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公开(公告)号：US11858768B2
公开(公告)日：2024-01-02
申请号：US17505780
申请日：2021-10-20
发明人： Oronzo Lucia , Alessandro Cipriani , Maurizio Spiriticchio , Emanuela Elisa Cepolina , Khelifa Baizid , Massimiliano Scaccia , Roberto Gagliardi , Isiah Zaplana , Mariapaola D'Imperio , Ferdinando Cannella
IPC分类号： B65H19/10
CPC分类号： B65H19/102 , B65H2301/463 , B65H2301/46171 , B65H2406/34 , B65H2701/1924
摘要： A method and an apparatus for preparing an edge of a reel of web material wherein it is envisaged to grip any portion of an external layer of web material of a new reel, removing damaged web material forming loops of the reel, and arranging a leading edge of the new reel to be joined with a tail edge of the reel close to finishing,
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公开(公告)号：US20200268573A1
公开(公告)日：2020-08-27
申请号：US16871097
申请日：2020-05-11
摘要： A method for producing an absorbent structure for absorbent sanitary articles, comprising the steps of: advancing a first non-woven layer at a first speed, with a first surface of said first non-woven layer facing a suction chamber, distributing superabsorbent granular material on a second surface of said first non-woven layer opposite to said first surface, volumizing said first non-woven layer by means of a toothed portion that penetrates into said first non-woven layer through said second surface and movable with respect to said first non-woven layer with a speed difference.
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公开(公告)号：US20220297417A1
公开(公告)日：2022-09-22
申请号：US17696056
申请日：2022-03-16
摘要： A transversely extensible continuous elastic laminates includes a continuous elastic tape sandwiched between two continuous webs, and at least one row of tabs extending transversely outside the two webs, wherein the tabs are made of a non-woven material and have respective micro-hook formations integrally formed in the non-woven material forming the tabs.
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公开(公告)号：US11116677B2
公开(公告)日：2021-09-14
申请号：US16871097
申请日：2020-05-11
摘要： A method for producing an absorbent structure for absorbent sanitary articles, comprising the steps of: advancing a first non-woven layer at a first speed, with a first surface of said first non-woven layer facing a suction chamber, distributing superabsorbent granular material on a second surface of said first non-woven layer opposite to said first surface, volumizing said first non-woven layer by means of a toothed portion that penetrates into said first non-woven layer through said second surface and movable with respect to said first non-woven layer with a speed difference.
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公开(公告)号：US10682267B2
公开(公告)日：2020-06-16
申请号：US15285118
申请日：2016-10-04
摘要： A method for producing an absorbent structure for absorbent sanitary articles, comprising the steps of: advancing a first non-woven layer at a first speed, with a first surface of said first non-woven layer facing a suction chamber, distributing superabsorbent granular material on a second surface of said first non-woven layer opposite to said first surface, volumizing said first non-woven layer by means of a toothed portion that penetrates into said first non-woven layer through said second surface and movable with respect to said first non-woven layer with a speed difference.
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