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1.发明授权公开(公告)号：US11730634B2
公开(公告)日：2023-08-22
申请号：US17205917
申请日：2021-03-18
IPC分类号： A61F13/49 , A61F13/15 , B29C65/00 , B29C65/08 , B29C65/74 , A61F13/496 , B29D99/00 , B29L31/48
CPC分类号： A61F13/49011 , A61F13/15593 , A61F13/15699 , A61F13/15739 , A61F13/15747 , A61F13/4902 , A61F13/49061 , B29C65/086 , B29C66/1122 , B29C66/21 , B29C66/433 , B29C66/7294 , B29C66/81433 , B29C66/81469 , B29C66/83411 , B29C66/8432 , A61F13/496 , A61F2013/15861 , A61F2013/49025 , A61F2013/49026 , A61F2013/49036 , A61F2013/49092 , B29C65/7443 , B29D99/0064 , B29K2995/0046 , B29L2031/4878
摘要： A method for manufacturing absorbent sanitary products, comprising the steps of: forming a first and a second continuous elastic band, which are movable parallel to each other in a machine direction, fixing a plurality of absorbent panels between said first and second continuous elastic bands, arranged in a direction transverse to the machine direction, and spaced apart in said machine direction, wherein each of said elastic bands is formed by means of a method comprising the steps of: continuously feeding a plurality of tensioned elastic threads (30) in said machine direction, continuously feeding a pair of non-elastic webs arranged on opposite sides of said plurality of elastic threads, welding said pair of non-elastic webs to each other by means of a welding pattern comprising anchoring welds and/or containing and guiding welds.
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公开(公告)号：US10377085B2
公开(公告)日：2019-08-13
申请号：US15154054
申请日：2016-05-13
摘要： Apparatus for forming transversal welds on a composite web material, comprising at least two superimposed sheets of material, suitable for use in the production of sanitary articles, comprising: a feeding unit including first and second feeding means configured to advance the composite web along a main straight direction X at a speed V1. an ultrasonic welding unit 80 arranged between the first and second feeding means, comprising at least one ultrasound source coupled to a sonotrode having a flat welding surface and an anvil unit having at least one anvil element movable along a closed path, which has a straight portion parallel to the main direction X.
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3.发明申请公开(公告)号：US20210205152A1
公开(公告)日：2021-07-08
申请号：US17205917
申请日：2021-03-18
摘要： A method for manufacturing absorbent sanitary products, comprising the steps of: forming a first and a second continuous elastic band, which are movable parallel to each other in a machine direction, fixing a plurality of absorbent panels between said first and second continuous elastic bands, arranged in a direction transverse to the machine direction, and spaced apart in said machine direction, wherein each of said elastic bands is formed by means of a method comprising the steps of: continuously feeding a plurality of tensioned elastic threads (30) in said machine direction, continuously feeding a pair of non-elastic webs arranged on opposite sides of said plurality of elastic threads, welding said pair of non-elastic webs to each other by means of a welding pattern comprising anchoring welds and/or containing and guiding welds.
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公开(公告)号：US20230346612A1
公开(公告)日：2023-11-02
申请号：US18213252
申请日：2023-06-22
CPC分类号： A61F13/49011 , A61F13/15593 , A61F13/15739 , B29C66/83411 , B29C65/086 , B29C66/8432 , B29C66/433 , B29C66/81433 , B29C66/21 , B29C66/7294 , B29C66/1122 , A61F13/4902 , B29C66/81469 , A61F13/49061 , A61F13/15699 , A61F13/15747 , B29C65/7443
摘要： A method for manufacturing absorbent sanitary products, comprising the steps of: forming a first and a second continuous elastic band, which are movable parallel to each other in a machine direction, fixing a plurality of absorbent panels between said first and second continuous elastic bands, arranged in a direction transverse to the machine direction, and spaced apart in said machine direction, wherein each of said elastic bands is formed by means of a method comprising the steps of: continuously feeding a plurality of tensioned elastic threads (30) in said machine direction, continuously feeding a pair of non-elastic webs arranged on opposite sides of said plurality of elastic threads, welding said pair of non-elastic webs to each other by means of a welding pattern comprising anchoring welds and/or containing and guiding welds.
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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：US10414123B2
公开(公告)日：2019-09-17
申请号：US15256221
申请日：2016-09-02
发明人： Guido Bonelli , Domenico Polidori
IPC分类号： B32B37/00 , B32B7/05 , B32B5/02 , B32B5/26 , B32B3/30 , A61F13/511 , A61F13/15 , B29C65/08 , B29C65/00 , B29C65/02 , B32B37/06 , B29L31/48 , B32B37/20 , B32B38/06
摘要： A composite tape comprising a first web and a second web welded together according to a welding pattern comprising a plurality of welding points arranged in arrays extending along a first direction and spaced apart in a second direction, perpendicular to said first direction, with adjacent arrays offset from each other in said first direction, and with said welding points in each array arranged in groups spaced apart in said first direction, wherein the first web has a plurality of hollow protrusions alternating with welding points, both in said first direction and in said second direction, and wherein the second web has a plurality of ribs extending along said first direction and separated from each other by said arrays of welding points.
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7.发明公开公开(公告)号：US20230346611A1
公开(公告)日：2023-11-02
申请号：US18213249
申请日：2023-06-22
CPC分类号： A61F13/49011 , A61F13/15593 , A61F13/15739 , B29C66/83411 , B29C65/086 , B29C66/8432 , B29C66/433 , B29C66/81433 , B29C66/21 , B29C66/7294 , B29C66/1122 , A61F13/4902 , B29C66/81469 , A61F13/49061 , A61F13/15699 , A61F13/15747 , B29C65/7443
摘要： A method for manufacturing absorbent sanitary products, comprising the steps of: forming a first and a second continuous elastic band, which are movable parallel to each other in a machine direction, fixing a plurality of absorbent panels between said first and second continuous elastic bands, arranged in a direction transverse to the machine direction, and spaced apart in said machine direction, wherein each of said elastic bands is formed by means of a method comprising the steps of: continuously feeding a plurality of tensioned elastic threads (30) in said machine direction, continuously feeding a pair of non-elastic webs arranged on opposite sides of said plurality of elastic threads, welding said pair of non-elastic webs to each other by means of a welding pattern comprising anchoring welds and/or containing and guiding welds.
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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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