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1.发明公开公开(公告)号：US20230218452A1
公开(公告)日：2023-07-13
申请号：US17924207
申请日：2021-05-10
发明人： Pavlina KASPARKOVA , Zdenek MECL
CPC分类号： A61F13/534 , D04H1/407 , D04H3/147 , D04H3/018 , D04H3/011 , D04H3/007 , D04H1/28 , A61F2013/530153
摘要： A nonwoven fabric structure for absorbent articles comprising a first layer, a second layer and superabsorbent particles, said first layer comprising endless filaments, —which comprise at least a first polymeric material (A) and a second polymeric material (B) having its melting point lower than the first polymeric material (A), —wherein the second polymeric material (B) extends in the longitudinal direction of the filament and forms at least a part of the surface of the filament and—the first layer contains filament-to-filament bonds formed of the second polymeric material (B), —void volume between the filaments of the first layer forms at least 65% of the volume of the first layer, the second layer comprising endless filaments, wherein the superabsorbent particles are arranged at least between the first layer and the second layer and within some of the voids of the first layer and/or the second layer.
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公开(公告)号：US20230181377A1
公开(公告)日：2023-06-15
申请号：US17924202
申请日：2021-05-07
摘要： A fibrous layer, wherein surface of the fibres has surface energy below 50 mN/m, characterised in that the calculated strike through time coefficient (cSTT) of the fibrous layer is below 20 and the fibrous layer is bonded in its entire volume at fibre to fibre contact bonding points, wherein the specific fibre surface is the surface area of the fibres in m2 per 1 m2 of the fibrous layer, basis weight is the weight of the layer in kg per 1 m2 of the fibrous layer, the specific void volume is the volume of empty spaces between the fibres in m3 per 1 m2 of the fibrous layer.
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公开(公告)号：US20230392310A1
公开(公告)日：2023-12-07
申请号：US18034282
申请日：2021-10-29
申请人： PFNONWOVENS HOLDING S.R.O. , PFNONWOVENS CZECH S.R.O. , PFN - GIC A.S. , REIFENHÄUSER GMBH & CO. KG MASCHINENFABRIK
发明人： Michael KAUSCHKE , Zdenek MECL , Nikol POLASKOVA , Patrick BOHL , Christine NOACK , Tobias WAGNER
CPC分类号： D04H3/147 , D04H3/007 , D04H3/011 , D04H3/033 , D10B2321/021 , D10B2321/022 , D10B2401/063 , D10B2401/062 , D10B2401/061 , D10B2403/02
摘要： A nonwoven fabric comprising a plurality of filamentary strata, wherein the fabric comprises —a first stratum (A), which forms an outer surface of the nonwoven fabric and comprises continuous multi-component filaments comprising a component, which forms at least 20% of the surface of the filaments and bonds within the first stratum (A) and has its melting point at least 5° C. lower than the melting point of the other components of the filaments of the first stratum (A), and —a second stratum (B), which comprises continuous multi-component filaments comprising a component, which forms at least 20% of the surface of the filaments and bonds within the second stratum (B) and has its melting point at least 5° C. lower than the melting point of the other components of the filaments of the second stratum (B), —wherein the bulk density of the fabric is lower than 60 kg/m3.
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公开(公告)号：US20220356617A1
公开(公告)日：2022-11-10
申请号：US17735687
申请日：2022-05-03
发明人： Karthik Ramaratnam , Peter Zajaczkowski , John C. Parsons , Michael Heinz Kauschke , Antonius Lambertus Johannes De Beer
摘要： A method of forming an apertured hydro-patterned nonwoven web including the steps of forming a nonwoven batt comprising continuous spunmelt fibers, calender bonding the nonwoven batt to form a fully bonded precursor nonwoven web with a regular bond pattern that defines individual bond impressions and unbonded areas between the individual bond impressions, the regular bond pattern having a percentage bond area of 10% to 25%, and hydraulically imparting the fully bonded precursor nonwoven web with a plurality of apertures, the step of hydraulically imparting comprising hydraulically treating the fully bonded precursor nonwoven web by a plurality of steps of water injection as the fully bonded nonwoven web passes over a plurality of pins.
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公开(公告)号：US20190351648A1
公开(公告)日：2019-11-21
申请号：US16415258
申请日：2019-05-17
发明人： John Charles Parsons, IV , Peter Zajaczkowski , Karthik Ramaratnam , Sven Krister Mikael Erlandsson , Pavlina Kasparkova
摘要： A nonwoven composite fabric including a first nonwoven layer composed substantially of meltblown fibers, the fibers within the first nonwoven layer having diameters that vary in accordance with a first distribution, a second nonwoven layer composed substantially of meltblown fibers, the fibers within the second nonwoven layer having diameters that vary in accordance with a second distribution, and a third nonwoven layer composed substantially of meltblown fibers, the third nonwoven layer disposed between the first and second nonwoven layers, the fibers within the third nonwoven layer having diameters that vary in accordance with a third distribution that is greater than the first and second distributions.
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公开(公告)号：US20230124706A1
公开(公告)日：2023-04-20
申请号：US17907821
申请日：2021-02-27
摘要： Layered nonwoven textile containing a first layer (T) of filaments, which contains endless filaments containing a first carrier polymer (A1) and a first binding polymer (B1), which forms at least a part of surface of said endless filaments and which has a melting temperature at least 5° C. lower than the first carrier polymer (A1), wherein the first layer (T) of filaments contains bonding points in a spaced arrangement, wherein the bonding points interconnect the filaments and are formed by the first binding polymer (B1), a second layer (M) of filaments, which contains filaments containing a carrier material, the stiffness of which is lower than the stiffness of the first carrier polymer (A1), and a second binding polymer (B2), which has a melting temperature at least 5° C., preferably at least 10° C., lower than the carrier material and the first carrier polymer (A1), wherein the second layer (M) of filaments contains bonding points in a spaced arrangement, wherein the bonding points interconnect the filaments of the second layer (M) and are formed by the second binding polymer (B1).
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公开(公告)号：US11541629B2
公开(公告)日：2023-01-03
申请号：US16415258
申请日：2019-05-17
发明人： John Charles Parsons, IV , Peter Zajaczkowski , Karthik Ramaratnam , Sven Krister Mikael Erlandsson , Pavlina Kasparkova
IPC分类号： B32B5/26 , B32B5/02 , D04H1/56 , D04H1/4382
摘要： A nonwoven composite fabric including a first nonwoven layer composed substantially of meltblown fibers, the fibers within the first nonwoven layer having diameters that vary in accordance with a first distribution, a second nonwoven layer composed substantially of meltblown fibers, the fibers within the second nonwoven layer having diameters that vary in accordance with a second distribution, and a third nonwoven layer composed substantially of meltblown fibers, the third nonwoven layer disposed between the first and second nonwoven layers, the fibers within the third nonwoven layer having diameters that vary in accordance with a third distribution that is greater than the first and second distributions.
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公开(公告)号：US20220364281A1
公开(公告)日：2022-11-17
申请号：US17735673
申请日：2022-05-03
IPC分类号： D04H1/46
摘要： A method of forming a hydro-patterned nonwoven web including the steps of forming a nonwoven batt comprising continuous spunmelt fibers, calender bonding the nonwoven batt to form a thermobonded precursor nonwoven web with a bond pattern that defines bond impressions and unbonded areas between the individual bond impressions, and hydraulically treating the thermobonded precursor nonwoven by a plurality of steps of water injection as the thermobonded nonwoven web passes over a screen. The bond pattern has specific features that provide advantages in terms of mechanical properties and visual appearance of the final nonwoven product.
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公开(公告)号：US20210316238A1
公开(公告)日：2021-10-14
申请号：US17226562
申请日：2021-04-09
发明人： Karthik Ramaratnam , John C. Parsons , Pavlina Kasparkova , Antonius Lambertus Johanne De Beer , Christian Skokowski , Pam Lynn Keech
摘要： A nonwoven fabric including a first layer made of spunbond fibers and a second layer made of meltblown fibers, wherein the first layer is bonded with the second layer, and wherein the spunbond fibers of the first layer are interspersed with the meltblown fibers of the second layer so that the nonwoven fabric exhibits enhanced breathability and filtration properties. In exemplary embodiments, the nonwoven fabric may be used in personal protective equipment, such as, for example, face masks and respirators.
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公开(公告)号：US12070932B2
公开(公告)日：2024-08-27
申请号：US17907821
申请日：2021-02-27
CPC分类号： B32B5/022 , B32B7/022 , B32B7/027 , B32B7/05 , B32B37/0084 , B32B37/04 , B32B37/06 , B32B38/0036 , B32B2250/02 , B32B2250/20 , B32B2250/24 , B32B2305/20 , B32B2307/54 , B32B2307/546 , B32B2310/0454 , B32B2323/04 , B32B2367/00 , B32B2377/00
摘要： Layered nonwoven textile containing
a first layer (T) of filaments, which contains endless filaments containing a first carrier polymer (A1) and a first binding polymer (B1), which forms at least a part of surface of said endless filaments and which has a melting temperature at least 5° C. lower than the first carrier polymer (A1), wherein the first layer (T) of filaments contains bonding points in a spaced arrangement, wherein the bonding points interconnect the filaments and are formed by the first binding polymer (B1),
a second layer (M) of filaments, which contains filaments containing a carrier material, the stiffness of which is lower than the stiffness of the first carrier polymer (A1), and a second binding polymer (B2), which has a melting temperature at least 5° C., preferably at least 10° C., lower than the carrier material and the first carrier polymer (A1), wherein the second layer (M) of filaments contains bonding points in a spaced arrangement, wherein the bonding points interconnect the filaments of the second layer (M) and are formed by the second binding polymer (B1).
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