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1. 发明授权

US11613097B2 Continuous filament cellulose nonwoven made with multiple bonding techniques 有权
公开(公告)号：US11613097B2
公开(公告)日：2023-03-28
申请号：US16500336
申请日：2017-04-03
申请人： LENZING AG
发明人： Tom Carlyle , Mirko Einzmann , Gisela Goldhalm , Malcolm John Hayhurst , Katharina Mayer , Ibrahim Sagerer-Foric
IPC分类号： B32B5/26 , D04H1/4258 , B32B7/09 , A45D44/00 , B32B5/02 , B32B5/06 , B32B7/02 , B32B7/06 , B32B7/12 , D04H1/485 , D04H1/492 , D04H1/498 , D04H1/56 , D04H3/11 , D04H3/16
摘要： This invention relates to a nonwoven material consisting of one or more layers of nonwoven webs of essentially continuous cellulosic filaments, characterized in that within each layer each of the three bonding mechanisms: a) hydrogen bonding, b) filament intermingling and c) merged filament bonding occur for bonding the essentially continuous cellulosic filaments. Further it relates to a process for the manufacture and to various uses of this material.

2. 发明申请

US20230026339A1 INSTALLATION AND METHOD FOR PRODUCING A SINGLE- OR MULTI-LAYER NONWOVEN 有权
公开(公告)号：US20230026339A1
公开(公告)日：2023-01-26
申请号：US17791853
申请日：2020-12-04
申请人： TRÜTZSCHLER GMBH & CO., KG , VOITH PATENT GMBH
发明人： Thomas WEIGERT , Florian SEILS , Kai PÖHLER
IPC分类号： D04H18/04 , D04H1/4374 , D04H1/492 , D04H1/498
摘要： The invention relates to an installation and a method for selectively producing a single- or multi-ply nonwoven includes an inclined wire former configured to deposit a sheet of wet-laid fibre material on a first circulating belt, a further belt configured to receive the sheet of wet-laid fibre material from the first circulating belt, a roller card arranged downstream in the material transport direction and configured to introduce a roller card web into the installation, a hydroentanglement arranged downstream in the material transport direction and including at least one water beam configured to entangle, bond and/or structure a single sheet of fibres or a plurality of sheets of fibres, and a dryer arranged downstream in the material transport direction.

3. 发明授权

US11559183B2 Wet sheet for cleaning 有权
公开(公告)号：US11559183B2
公开(公告)日：2023-01-24
申请号：US16344771
申请日：2017-10-31
申请人： DAIO PAPER CORPORATION
发明人： Naoki Shintani
IPC分类号： A47L13/17 , D04H1/485 , D04H1/498
摘要： A wet sheet for cleaning includes multiple layers and is impregnated with a chemical solution. The wet sheet includes hydrophobic fiber layers arranged in a front surface layer and a back surface layer, and a hydrophilic fiber layer arranged in an intermediate layer. The hydrophobic fiber layers have an interlaced part with a high fiber density where the hydrophobic fiber layers are interlaced with the hydrophilic fiber layer. The interlaced part has at least one slightly interlaced part and at least one highly interlaced part which is formed in a dent shape and which is interlaced with a higher fiber density. The highly interlaced part is formed in an area ratio of 10 to 20% to an area of the front surface layer or the back surface layer. Static friction resistance of the wet sheet for cleaning is lower than kinetic friction resistance of the wet sheet for cleaning.

4. 发明申请

US20220307173A1 SYSTEM FOR THE BONDING OF AT LEAST ONE WET-LAID OR DRY-LAID FIBER LAYER 有权
公开(公告)号：US20220307173A1
公开(公告)日：2022-09-29
申请号：US17700529
申请日：2022-03-22
申请人： ANDRITZ KUESTERS GMBH
发明人： Frederic NOELLE , Dennis LATENDORF
IPC分类号： D04H1/49 , D04H1/498
摘要： A system for bonding at least one wet-laid or dry-laid fiber layer to form a nonwoven web. The system includes a conveyor having a circulating belt which has an upper strand arranged so that the at least one wet-laid or dry-laid fiber layer is deposited and displaced on the upper strand in a production direction, a first bonding device which bonds the at least one wet-laid or dry-laid fiber layer when on the upper strand, a second bonding device arranged so that the at least one wet-laid or dry-laid fiber layer is bonded after leaving the upper strand, and a transfer device which feeds the at least one wet-laid or dry-laid fiber layer to the second bonding device.

5. 发明申请

US20220251746A1 Low Linting Imaged Hydroentangled Nonwoven Composite 有权
公开(公告)号：US20220251746A1
公开(公告)日：2022-08-11
申请号：US17719468
申请日：2022-04-13
申请人： AVINTIV Specialty Materials Inc.
发明人： Steven Brian Burgess , Jerry Snider , Paul Michael Harmon , Dianne B. Ellis
IPC分类号： D04H1/492 , A61F13/00 , B32B5/26 , B32B5/02 , D04H1/498 , D04H1/485 , B32B37/20 , D04H3/14 , B32B5/08 , B32B7/12 , B32B5/06 , B32B3/30 , B32B7/05
摘要： Hydroentangled composites having a wide variety of uses (e.g., personal hygiene articles, facers for fenestration absorbent patches on surgical drapes, facers on absorbent surgical drapes, etc.) are provided. The hydroentangled composite includes at least two nonwoven webs hydroentangled together. The hydroentangled composite may have a three-dimensional structure. Additionally, the at least two nonwoven webs may have different bonding levels and/or lint levels.

6. 发明授权

US11377766B2 Delamination-resistant bulky needle-punched structures 有权
公开(公告)号：US11377766B2
公开(公告)日：2022-07-05
申请号：US15647935
申请日：2017-07-12
申请人： Engineered Floors LLC
发明人： Dimitri Zafiroglu , Stephen Tsiarkezos , John Joseph Matthews Rees
IPC分类号： D04H1/48 , B32B5/06 , B32B7/12 , D04H1/46 , D04H13/00 , A47G27/02 , A47G27/04 , B32B3/16 , B32B5/22 , B32B27/12 , B32B7/02 , B32B5/26 , B32B29/00 , D04H1/558 , B32B5/02 , D04H1/485 , D04H1/00 , D04H11/08 , B32B29/02 , D04H3/105 , D04H1/541 , D04H1/70 , D04H1/488 , D04H1/498 , D04H3/10 , B32B17/10
摘要： Stabilizing a textile sheet structure was achieved by forming a plurality of discrete fiber tufts extending from a first face of a fibrous layer of the textile sheet structure, through the fibrous layer and beyond a second face opposite the first face. Each discrete fiber tuft included a plurality discrete fibers. Each discrete fiber tuft was anchored to the first face and the second face of the fibrous layer by joining together the plurality of each discrete fiber tuft at the first face and the second face and bonding the joined plurality of discrete fiber tuft to the first face and the second face.

7. 发明申请

US20220145500A1 APPARATUS FOR THE PRODUCTION OF NEEDLE PUNCHED NONWOVENS 有权
公开(公告)号：US20220145500A1
公开(公告)日：2022-05-12
申请号：US17433955
申请日：2020-02-18
申请人： ADLER PELZER HOLDING GMBH
发明人： Siegfried BERNHARDT , Volkmar SCHULZE
IPC分类号： D01G15/46 , B32B19/06 , B32B5/02 , B32B5/06 , B32B5/08 , B32B5/26 , D04H1/498 , D04H1/559
摘要： An apparatus for the production of needle punched nonwovens makes it possible to introduce different materials via the nonwoven thickness and/or nonwoven width into the individual layers during their production.

8. 发明申请

US20210268764A1 INHERENTLY SECURED AEROGEL COMPOSITES 有权
公开(公告)号：US20210268764A1
公开(公告)日：2021-09-02
申请号：US17320623
申请日：2021-05-14
申请人： Aspen Aerogels, Inc.
发明人： Daniel E. Bullock , Aaron R. Tomich
IPC分类号： B32B5/02 , B32B5/24 , B32B5/26 , D04H1/4374 , D04H1/498 , B32B5/06 , B32B5/10 , B32B5/32
摘要： Embodiments of the present invention describe secured fiber-reinforced aerogels and laminate structures formed therefrom. In one embodiment a laminate comprises at least one fiber-reinforced aerogel layer adjacent to at least one layer of fiber containing material wherein fibers from said at least one fiber-reinforced aerogel layer are interlaced with fibers of said at least one fiber-containing material. In another embodiment a laminate comprises at least two adjacent fiber-reinforced aerogel layers wherein fibers from at least one fiber-reinforced aerogel layer are interlaced with fibers of an adjacent fiber-reinforced aerogel layer.

9. 发明申请

US20210236972A1 FILTER MEDIUM COMPRISING A REINFORCED NON-WOVEN FABRIC 有权
公开(公告)号：US20210236972A1
公开(公告)日：2021-08-05
申请号：US16972758
申请日：2019-06-06
申请人： SGL CARBON SE
发明人： Almut SCHWENKE , Manfred JUNG , Oswin OETTINGER , Rainer SCHMITT
IPC分类号： B01D39/16 , B01D39/08 , B32B5/02 , B32B5/26 , D04H1/4242 , D04H1/43 , D04H1/4374 , D04H1/498
摘要： The invention relates to a filter medium comprising a reinforced non-woven fabric, to a method for the production thereof, and to the use thereof.

10. 发明授权

US11077394B2 Electret-containing filter media 有权
公开(公告)号：US11077394B2
公开(公告)日：2021-08-03
申请号：US15438042
申请日：2017-02-21
申请人： Hollingsworth & Vose Company
发明人： Bruce Smith
IPC分类号： B01D39/16 , B01D46/00 , B03C3/28 , H01G7/02 , B32B5/26 , B01D35/06 , D04H1/498
摘要： Filter media, such as electret-containing filtration media for filtering gas streams (e.g., air), are described herein. In some embodiments, the filter media may be designed to have desirable properties such as stable filtration efficiency over the lifetime of the filter media, increased normalized gamma, relatively low pressure drop (i.e. resistance), and/or relatively low basis weight. In certain embodiments, the filter media may be a composite of two or more types of fiber layers where each layer may be designed to enhance its function without substantially negatively impacting the performance of another layer of the media. For example, one layer of the media may be designed to have a relatively low basis weight and/or a relatively high air permeability, and another layer of the media may be designed to have stable filtration efficiency and/or a relatively high efficiency throughout the filter media's lifetime. The filter media described herein may be particularly well-suited for applications that involve filtering gas streams (e.g., face masks, cabin air filtration, vacuum filtration, room filtration, furnace filtration, respirator equipment, residential or industrial HVAC filtration, high-efficiency particulate arrestance (HEPA) filters, ultra-low particular air (ULPA) filters, medical equipment), though the media may also be used in other applications.

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