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公开(公告)号：US20200157715A1
公开(公告)日：2020-05-21
申请号：US16587105
申请日：2019-09-30
申请人： Detlef FREY , Hans-Georg Geus , Michael Maas , Martin Neuenhofer , Michael Nitschke , Christine Noack , Hartmut Kopp
发明人： Detlef FREY , Hans-Georg Geus , Michael Maas , Martin Neuenhofer , Michael Nitschke , Christine Noack , Hartmut Kopp
摘要： A nonwoven web is made by first depositing fibers as a nonwoven web in a deposition area, then conveying the web away from the deposition area in a web-travel direction, preconsolidating the web in the path, and passing the preconsolidated web between a pair of rollers that compress and final consolidate the preconsolidated web. One of the rollers is separated from the web such that final consolidation of the web at a starting level is stopped and at the same time or immediately beforehand upstream preconsolidation of the web increased. After separating the one roller from the web, another roller is engaged with the web at the consolidation station and then final consolidation is recommenced, whereupon upstream preconsolidation of the web is reduced back to the starting level.
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公开(公告)号：US20220205156A1
公开(公告)日：2022-06-30
申请号：US17694867
申请日：2022-03-15
摘要： A spunbonded nonwovens is made by first spinning thermoplastic continuous filaments and emitting them from a spinneret in a direction and then passing the filaments in the direction through a cooling chamber. Meanwhile cooling air is fed from respective manifolds flanking the chamber into the chamber to cool the filaments and the cooling air is guided into the manifolds through respective manifolds and through respective planar homogenizing elements each having a plurality of openings forming a free open surface area constituting 1 to 40% of the total surface area of the respective planar homogenizing element. The cooling air passes from the planar homogenizing element into the cooling chamber through a flow straightener.
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公开(公告)号：US20230332342A1
公开(公告)日：2023-10-19
申请号：US18200610
申请日：2023-05-23
摘要： A spunbonded nonwovens is made by first spinning thermoplastic continuous filaments and emitting them from a spinneret in a direction and then passing the filaments in the direction through a cooling chamber. Meanwhile cooling air is fed from respective manifolds flanking the chamber into the chamber to cool the filaments and the cooling air is guided into the manifolds through respective manifolds and through respective planar homogenizing elements each having a plurality of openings forming a free open surface area constituting 1 to 40% of the total surface area of the respective planar homogenizing element. The cooling air passes from the planar homogenizing element into the cooling chamber through a flow straightener.
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公开(公告)号：US20090004313A1
公开(公告)日：2009-01-01
申请号：US12146573
申请日：2008-06-26
申请人： Hans-Georg GEUS , Detlef FREY
发明人： Hans-Georg GEUS , Detlef FREY
IPC分类号： B29C55/30
CPC分类号： D04H3/16 , D01D5/0985
摘要： An apparatus for making a spunbond web has a deposition surface, a spinneret above the surface for producing filaments that move downward along a path toward the surface, and a cooling chamber below the spinneret. Cool process air is supplied to the chamber to cool the filaments as they pass downward through the chamber. A laterally closed stretching unit downstream of the cooling chamber has laterally closed side walls that have portions that diverges downward. A connecting region between the stretching unit and the cooling chamber substantially excludes access of air from outside to the filaments as they pass from the cooling chamber to the stretching unit so that the filaments drop from the stretching unit onto the deposition surface.
摘要翻译： 用于制造纺粘纤维网的装置具有沉积表面，在表面上方的喷丝板，用于产生沿着朝向表面的路径向下移动的长丝，以及在喷丝板下方的冷却室。 冷却过程中的空气被供应到室中，以便当它们向下通过室时冷却细丝。 在冷却室下游的侧向闭合的拉伸单元具有侧向封闭的侧壁，其具有向下分叉的部分。 拉伸单元和冷却室之间的连接区域在从冷却室经过拉伸单元时基本上不包括从外部到细丝的空气进入，使得长丝从拉伸单元落到沉积表面上。
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公开(公告)号：US20230203729A1
公开(公告)日：2023-06-29
申请号：US18118377
申请日：2023-03-07
申请人： Detlef FREY , Martin NEUENHOFER , Sebastian SOMMER
发明人： Detlef FREY , Martin NEUENHOFER , Sebastian SOMMER
摘要： An apparatus for making spunbond from continuous thermoplastic filaments has a spinneret for spinning the continuous filaments and advancing them in a filament-travel direction, a cooler for cooling the filaments, a stretcher for stretching the filaments, a depositing device including a foraminous belt extending in a machine direction transverse to the filament-travel direction for deposition of the filaments as a nonwoven web and conveyance away from the stretcher, a diffusor between the stretcher and the foraminous belt so that filaments and primary air from the stretcher enter into the diffusor, and a suction device for extracting air through the foraminous belt at an unobstructed extraction region underneath the diffusor outlet and having a width b in a machine direction that is greater than a width B of the diffusor outlet. The diffusor forms upstream and downstream secondary air-inlet gaps at opposite ends through which secondary air is aspirated into the diffusor.
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公开(公告)号：US20200307146A1
公开(公告)日：2020-10-01
申请号：US16828083
申请日：2020-03-24
申请人： Tobias WAGNER , Patrick BOHL , Detlef FREY
发明人： Tobias WAGNER , Patrick BOHL , Detlef FREY
摘要： A nonwoven laminate having at least two nonwoven layers is made by first spinning, cooling, and stretching, first crimped multicomponent filaments to form a first nonwoven web that is deposited on a deposition device. Then second continuous continuous filaments including an elastomer based on polypropylene are spun, cooled, and stretched to form a second nonwoven web that is deposited on the first nonwoven web and thereby forming the nonwoven laminate that it then consolidated.
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