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公开(公告)号：US20220228318A1
公开(公告)日：2022-07-21
申请号：US17608611
申请日：2020-03-12
申请人： Voith Patent GmbH
摘要： A seamed felt for use in a machine for producing a tissue web has a single-layer or multilayer base structure and at least one layer of non-woven fibers. The base structure has a textile structure with MD threads which form seam loops at the two front edges of the base structure. The fabric can be made endless by connecting its front edges by way of a seam. The seam can be formed by interlocking the seam loops of the two front edges and introducing a push-in element. The MD threads wholly or predominantly have a diameter between 0.25 mm and 0.45 mm, in particular between 0.3 mm and 0.35 mm, and the thread density of the MD threads is more than 37%, in particular between 37% and 45%. There is also described a corresponding machine and a method for producing a tissue web.
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公开(公告)号：US11261566B2
公开(公告)日：2022-03-01
申请号：US16980449
申请日：2019-03-11
申请人： VOITH PATENT GMBH
发明人： Robert Eberhardt , Susanne Klaschka
摘要： A clothing, in particular a seam felt for a machine producing a fibrous material web, in particular a paper, paperboard, tissue or pulp web, includes a base structure including or formed of a two-layer laminate structure formed of one or more flat-woven fabrics. The laminate structure has MD threads forming seam loops at two end sides of the base structure, and the two layers of the laminate structure are connected to one another by the seam loops. The clothing is made endless by connecting the end sides by a seam. The seam is made by interengaging the seam loops of both end sides and introducing an insertion element. The diameter of the seam loops LD and the diameter of the associated MD threads MDYD have a ratio LD/MDYD of between 2.5 and 4, in particular between 2.7 and 3.6.
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公开(公告)号：US10934664B2
公开(公告)日：2021-03-02
申请号：US16093842
申请日：2017-04-10
申请人： VOITH PATENT GMBH
摘要： A method for producing a structured fibrous web, in particular a tissue web, includes bringing a fibrous suspension into contact with at least one structured forming belt and dewatering by using at least one dewatering element, in particular a suction element. The at least one structured forming belt includes a layer of polymer foam providing a paper-contacting side of the structured forming belt. The structure of the foam layer is at least partially transferred to the fibrous web. A structured forming belt and a machine for producing a fibrous web are also provided.
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公开(公告)号：US09309624B2
公开(公告)日：2016-04-12
申请号：US14029448
申请日：2013-09-17
申请人： Voith Patent GmbH
发明人： Michael Straub , Robert Eberhardt
CPC分类号： D21F1/80 , D21F1/0036 , D21F1/0054
摘要： A fabric for a papermaking machine is in the form of an endless belt which is closed in the circulating direction. The fabric has a first layer and a second layer which is arranged on the first layer. Each layer is formed by one or by a plurality of film-shaped tapes which adjoin one another and are arranged next to one another in the direction transversely with respect to the circulating direction. The side edges, which adjoin one another, of two film-shaped tapes of one of the two layers are arranged between the side edges of the two layers are arranged between the end edges of adjoining end edges of film-shaped tapes of one of the two layers. The film-shaped tapes of one of the two layers are connected over their full area to the film-shaped tapes of the other of the two layers.
摘要翻译： 用于造纸机的织物是循环方式封闭的环形带的形式。 织物具有布置在第一层上的第一层和第二层。 每个层由一个或多个彼此相邻的膜状带形成，并且在相对于循环方向横向方向上彼此相邻布置。 其中两层之间的两个膜状带彼此相邻的侧边缘布置在两层的侧边缘之间，其两侧的边缘之间布置在其中一个的膜形带的相邻端边缘的端边缘之间 两层。 两层之一的薄膜状带在其全部区域连接到两层中另一层的薄膜状带。
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公开(公告)号：US12060681B2
公开(公告)日：2024-08-13
申请号：US17608611
申请日：2020-03-12
申请人： Voith Patent GmbH
CPC分类号： D21F7/083 , D21F3/0227 , D21F3/045 , D21F7/10 , D21F11/14
摘要： A seamed felt for use in a machine for producing a tissue web has a single-layer or multilayer base structure and at least one layer of non-woven fibers. The base structure has a textile structure with MD threads which form seam loops at the two front edges of the base structure. The fabric can be made endless by connecting its front edges by way of a seam. The seam can be formed by interlocking the seam loops of the two front edges and introducing a push-in element. The MD threads wholly or predominantly have a diameter between 0.25 mm and 0.45 mm, in particular between 0.3 mm and 0.35 mm, and the thread density of the MD threads is more than 37%, in particular between 37% and 45%. There is also described a corresponding machine and a method for producing a tissue web.
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公开(公告)号：US11952717B2
公开(公告)日：2024-04-09
申请号：US17633661
申请日：2020-07-03
申请人： VOITH PATENT GMBH
发明人： Robert Eberhardt , Susanne Klaschka
摘要： A basic structure of a clothing for a machine for producing or processing a fibrous web, in particular a paper, cardboard or tissue web. The basic structure has at least a first flat fabric of fabric type A and a second flat fabric of fabric type B, and, furthermore, two loop elements. The loop elements are formed in each case from a flat fabric piece which has a first portion of fabric type A and a second portion of fabric type B. The first portion is laid down on the second portion in such a way that the folding point is formed at a spacing of less than 5 cm, in particular less than 1 cm, from the changeover position between the fabric type A and the fabric type B. The first and the second flat fabric are arranged above one another, and the two loop elements are arranged in each case at a face-side, front end.
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公开(公告)号：US20240026607A1
公开(公告)日：2024-01-25
申请号：US18042316
申请日：2021-06-30
申请人： VOITH PATENT GMBH
发明人： Robert Eberhardt
IPC分类号： D21F7/08
CPC分类号： D21F7/083
摘要： A press felt for a machine for producing a fibrous material web has a woven base structure and a nonwoven support fixed thereon. The base structure includes a first fabric layer and a second fabric layer, wherein at least the first fabric layer has longitudinal threads and transverse threads which intersect at intersecting points. The longitudinal threads and the transverse threads of the first fabric layer are integrally bonded to each other, in particular welded to each other, at at least 5% of the intersecting points, in particular at at least 10% of the intersecting points.
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公开(公告)号：US20230013706A1
公开(公告)日：2023-01-19
申请号：US17783842
申请日：2020-11-11
申请人： Voith Patent GmbH
发明人： Robert Eberhardt , Tobias Englet
摘要： A clothing or seamed felt for a pressing section of a machine producing a fibrous web includes at least one base structure and at least one staple fiber layer is disposed on the base structure. The staple fiber layer is disposed on a side facing the fibrous web and/or the machine. At least one seam zone has seam loops connected to one another by at least one pintle or seam wire making the clothing endless. The staple fiber layer is divided in the region of the seam zone by at least one cut forming a seam flap and a seam wedge or gusset. At least one connecting element is inserted between the seam flap and the seam wedge. The connecting element is materially connected, in particular welded, to staple fibers of the seam flap and/or of the seam wedge. A method for using the clothing is also provided.
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公开(公告)号：US11280048B2
公开(公告)日：2022-03-22
申请号：US16649429
申请日：2018-09-25
申请人： VOITH PATENT GMBH
IPC分类号： D21F7/10 , D21F1/00 , B29C65/16 , B29K507/04 , B29L31/00
摘要： A fabric clothing, in particular a press felt, for use in a machine for producing a fibrous web, contains a woven fabric strip having interwoven longitudinal threads and cross threads, as well as having a first and a second longitudinal end. The two longitudinal ends of the woven fabric strip are connected to one another in a connection zone. Provision is made that the two longitudinal ends are welded to one another by a transmission welding, in particular by a laser transmission welding.
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公开(公告)号：US09714483B2
公开(公告)日：2017-07-25
申请号：US14396975
申请日：2013-04-18
申请人： VOITH PATENT GMBH
发明人： Michael Straub , Robert Eberhardt
CPC分类号： D21F7/10 , D03D13/004 , D21F1/0054
摘要： An endless fabric belt for use in a paper, cardboard or tissue machine has machine-direction threads and cross-machine-direction threads. At least part of the threads are yarns composed substantially of a thermoplastic polymer material which is transparent for light of a wavelength. The fabric belt is a flat-weave with two front-side ends that are subsequently connected by bringing together end sections of the machine-direction threads in pairs with the formation of junction points and are woven with cross-machine-direction threads, forming a seam region. A material-to-material bond is formed in the seam region by absorbing light at the wavelength at yarn contact points. In the seam region, a plurality of spaced-apart, strip-shaped fabric sections are formed, in which the junction points and the yarn contact points which are connected to one another are arranged, and one strip-shaped fabric section without junction points is formed between two immediately adjacent fabric sections having the junction points.
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