EP3853412A1 - Revêtement de presse, son utilisation et rouleau de presse, presse à sabot et utilisation d'un polyuréthane pour la fabrication d'un revêtement de presse - Google Patents

Revêtement de presse, son utilisation et rouleau de presse, presse à sabot et utilisation d'un polyuréthane pour la fabrication d'un revêtement de presse

Info

Publication number
EP3853412A1
EP3853412A1 EP19739973.6A EP19739973A EP3853412A1 EP 3853412 A1 EP3853412 A1 EP 3853412A1 EP 19739973 A EP19739973 A EP 19739973A EP 3853412 A1 EP3853412 A1 EP 3853412A1
Authority
EP
European Patent Office
Prior art keywords
press
polymer layer
press jacket
polyurethane
jacket
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP19739973.6A
Other languages
German (de)
English (en)
Inventor
Delphine Delmas
Hermann Reichert
Michael Wokurek
Juanhao ZOU
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Voith Patent GmbH
Original Assignee
Voith Patent GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Voith Patent GmbH filed Critical Voith Patent GmbH
Publication of EP3853412A1 publication Critical patent/EP3853412A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F3/00—Press section of machines for making continuous webs of paper
    • D21F3/02—Wet presses
    • D21F3/0209—Wet presses with extended press nip
    • D21F3/0218—Shoe presses
    • D21F3/0227—Belts or sleeves therefor
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F3/00—Press section of machines for making continuous webs of paper
    • D21F3/02—Wet presses
    • D21F3/0209—Wet presses with extended press nip
    • D21F3/0218—Shoe presses
    • D21F3/0227—Belts or sleeves therefor
    • D21F3/0236—Belts or sleeves therefor manufacturing methods

Definitions

  • the invention relates to a press jacket, in particular for a press device for treating a fibrous web, e.g. for smoothing or dewatering, in detail according to the independent claims.
  • the invention also relates to a press roll, a shoe press and the use of a press jacket in such a one, in detail according to the independent claims.
  • Press devices such as shoe presses have long been part of modern paper machines. They essentially comprise a stationary shoe (also called a press shoe), which extends in a cross-machine direction, and a press jacket that runs around the stationary shoe. The latter is deformable and essentially assumes a tubular shape during operation.
  • the shoe is shaped so that it forms a press nip with a counter roller.
  • the press nip is defined by the contact surface of the counter roller in the shoe.
  • the shoe is designed to be movable and can be moved to the counter roller.
  • Enormous demands are placed on the press jacket in terms of its stability, namely with regard to surface hardness, resistance to pressure, temperature and flydrolysis.
  • the press jacket is also exposed to strong alternating bending loads during operation.
  • This deformation of the press jacket when entering and leaving is also referred to as a changing nip. It is easy to see that the tendency of the press casing to break particularly at this point is very high due to the high mechanical stress. Accordingly, many measures are known from the prior art that improve the stability of the
  • Press sleeve should increase.
  • the press jacket must therefore be sufficiently flexible so that it can be guided around the shoe, it must be sufficiently stiff so that it does not deform or compress too much under the press load in the nip, and it must be sufficiently wear-resistant.
  • Press sleeves therefore consist of a single or multi-layer polymer layer, preferably made of polyurethane, in which reinforcing threads in the form of scrims or fabrics can be embedded.
  • the present invention relates to such generic items mentioned at the outset.
  • Multi-layer press sleeves known from the prior art tend to premature failure in normal operation due to the detachment of one of the polymer layers, which is often only local. In practice, this leads to unplanned downtimes of the pressing device and thus to increased, costly downtimes. In the operation of such press sleeves, local overloads can also occur in the nip of the pressing device. This is the case when a foreign body passes through the nip during a so-called batz passage. Such an overload can also lead to such detachments. It is an object of the invention to provide a press jacket which avoids the disadvantages of the prior art.
  • a press jacket in the sense of the invention is to be understood as a band, hose or a jacket which, as shown, is guided together with a fibrous web through the press nip of a shoe press.
  • the radially outermost surface (polymer layer) of the press jacket can come into contact with a press felt, from which the fibrous web to be dewatered is carried directly.
  • the press jacket can also come into direct contact with the fibrous web in order to smooth it, for example.
  • the press jacket is designed as a closed jacket (hose) which is endless in the circumferential direction about its longitudinal axis.
  • the press jacket can thus be held at these axial ends by two lateral tensioning disks in order to form the shoe press roll.
  • the press jacket can be guided over the press shoe and several guide rollers. Regardless of whether the press jacket is guided by the tensioning disks or the guide rolls, the press shoe (or the guide rolls) comes into contact with part of the radially innermost surface of the press jacket.
  • the radially outermost surface of such a press casing for example the radially outermost polymer layer thereof, can be provided with grooves and / or blind bores.
  • the longitudinal direction means the direction that runs parallel to the longitudinal axis of the press casing.
  • the longitudinal axis also corresponds to the axis of symmetry or rotation of the finished press jacket or the press roll.
  • the circumferential direction of the press casing extends around the longitudinal axis as seen around its radial boundary.
  • the term parallel also includes those angular deviations of two reinforcement threads lying in different planes of +/- 5 ° to one another.
  • the press jacket or the at least one polymer layer can be made partially or completely from a polymer.
  • a pourable, curable, preferably elastomeric polymer such as polyurethane can be used as the polymer.
  • the polymer can consequently be set as a cast elastomer.
  • polymer layer is meant a layer which comprises such a castable, curable, preferably elastomeric polymer or is produced entirely therefrom.
  • the polymer layer can preferably be a cured layer which is produced in one piece by primary molding. In other words, it is monolithically shaped, e.g. by Casting made.
  • the term one-part also includes cases in which the one layer was again made from several layers of the same material when the polymer was cast. However, this only insofar as these layers are essentially no longer visible after curing, but rather a single, preferably uniform, layer results. The same applies accordingly to the finished press jacket.
  • polymer layers can be arranged one above the other as seen in the radial direction - at least in sections over the width of the press jacket. At least in sections over the width of the press casing means that the press casing, for example at its axial ends along the longitudinal axis of the press casing, is only one-layer, whereas it is between the axial ends is formed in two or more layers.
  • the polymer layers can also extend over the entire width of the press jacket.
  • the thickness of the press jacket - and thus the thickness of the individual polymer layers - can vary in sections along the longitudinal axis in a section through its longitudinal axis.
  • the radially outermost polymer layer in the area of the width edges of the press jacket can be smaller than in the middle of the press jacket.
  • the radially outermost polymer layer can be less thick than a radially inner or radially innermost polymer layer.
  • a total thickness of the finished press casing in a section through its longitudinal axis in the radial direction can be 5 to 10 mm, preferably 5 to 7, particularly preferably 5 to 6 mm. According to the invention, if a single layer is provided, the press jacket can be produced from only one casting, ie monolithically, so that the single layer has the thickness just mentioned.
  • a finished press jacket in the sense of the invention is one whose at least one polymer layer has hardened and possibly finally processed, i.e. for the purpose mentioned in e.g. a shoe press is ready for use.
  • a finished polymer layer means a layer that has hardened.
  • a reinforcing thread in the sense of the invention is understood to mean a pliable, textile line structure which has a dominant extension and a uniformity in its longitudinal direction.
  • reinforcing structure in the sense of the invention means reinforcing the at least one layer containing or consisting of the polymer - that is to say the polymer layer.
  • the reinforcing structure can be completely embedded in the polymer layer, so that the reinforcing structure does not go beyond the boundary of the polymer layer.
  • the polymer layer takes on the role of a matrix that surrounds the reinforcement structure and binds to the matrix due to adhesive or cohesive forces.
  • Such a reinforcement structure can textile line structures - z.
  • B. yarns or threads - and / or textile fabrics - such.
  • a single reinforcing thread according to the invention is considered as a textile line structure.
  • Several such reinforcing threads can be designed, for example, as longitudinal and / or circumferential threads, that together they form a textile fabric.
  • the at least one reinforcing thread, which is embedded in the at least one polymer layer, then represents the reinforcing structure of the press cover or its polymer layer.
  • the starting material is understood to mean that material or sheet material by means of which the reinforcing structure of the finished press jacket according to the invention is produced.
  • the reinforcing threads mentioned are the starting material for the reinforcing structure.
  • the definition that at least the longitudinal threads are produced as reinforcing threads according to the invention means that only the longitudinal threads are designed in this way or in addition the longitudinal threads and at least one further peripheral thread are produced in this way. If preferred e.g. if there is a scrim of circumferential and longitudinal threads, then this means that at least the longitudinal threads are designed according to the invention.
  • a shoe press e.g. for drainage or treatment, such as smoothing one
  • the shoe press comprises a shoe press roll and a counter roll, which together form or limit a press nip.
  • the shoe press roll also includes a circumferential press jacket and a standing press element, the so-called press shoe.
  • the latter is supported on a supporting, also standing yoke - for example via hydraulic ones
  • the press jacket rotates and is relative to the fixed press shoe and yoke thereby pressed against the counter roller in the press nip.
  • Press shoe and yoke are arranged radially inside the press jacket.
  • the term standing means that the press element does not rotate relative to the shoe press roll or the counter roll, but can translate - towards and away from the counter roll, preferably in the radial direction thereof - and thus relative to the counter roll.
  • one or more press felts that circulate endlessly in the circumferential direction and / or further press belts that rotate continuously can be guided through the press nip of the shoe press.
  • Such a shoe press can of course comprise more than one press nip
  • a fibrous web in the sense of the invention is to be understood as a scrim of fibers, such as flolz fibers, plastic fibers, glass fibers, carbon fibers, additives, additives or the like.
  • the fibrous web can be designed as a paper, cardboard or tissue web. It can essentially comprise flolz fibers, it being possible for small amounts of other fibers or also additives and additives to be present. Depending on the application, this is left to the specialist.
  • the invention also relates to a press roll, such as a shoe press roll, for a shoe press for dewatering a fibrous web, the press roll having at least one press jacket according to the invention.
  • the invention also relates to a shoe press for dewatering a fibrous web, preferably a paper, cardboard, tissue or cellulose web, comprising a press roll and a counter roll, which together form or limit a nip, the press roll comprising a rotating press jacket, the press jacket is designed according to the invention.
  • the invention also relates to the use of a press jacket according to the invention for a press, such as a shoe press for dewatering a fibrous web, preferably a paper, cardboard, tissue or cellulose web.
  • the invention relates to the use of a composition according to the invention for a press jacket which can be produced therefrom.
  • Fig. 1 is a partially sectioned, schematic side view of a
  • Shoe press with a press jacket according to an embodiment of the present invention.
  • 2a and 2b embodiments of a press jacket each in one
  • Fig. 3 is a highly schematic representation of a device for
  • a shoe press 10 is shown in a partially sectioned, schematic side view in FIG. 1, which in the present case comprises a press roll according to the invention, such as a shoe press roll 12, and a counter roll 14.
  • Shoe press roller 12 and counter roller 14 are arranged parallel to one another with respect to their longitudinal axes. Together they form or limit a nip 22.
  • the shoe press roller 12 is composed of a shoe 16, a standing yoke 18 carrying it and a press jacket 20.
  • Shoe 16 and yoke 18 are arranged fixed with respect to the counter roller 14 and the press jacket 20, respectively. That means they don't rotate.
  • the shoe 16 is supported by the yoke 18 and via not shown, hydraulic pressing elements are pressed against the radially innermost surface of the press jacket 20 rotating relative thereto.
  • the press jacket 20, which surrounds the shoe 16 and the yoke 18 in the circumferential direction, rotates about its longitudinal axis in the opposite direction of rotation to the counter roller 14. Because of the concave configuration of the shoe 16 on its side facing the counter roller 14, a comparatively long nip 22 results.
  • the shoe press 10 is particularly suitable for dewatering fibrous webs 24.
  • a fibrous web 24 with one or two press felts 26, 26 ' is guided through the press nip 22.
  • a pressure is indirectly exerted on the fibrous web 24 in the nip 22 by the press felts 26, 26 '. This takes place in that the radially outermost surface of the counter-roller 14, on the one hand, and the radially outermost surface of the press jacket 20 come into direct contact with the corresponding press felts 26, 26 '.
  • the liquid emerging from the fibrous web 24 is temporarily absorbed by the press felt (s) 26, 26 'and any depressions (not shown) provided in the surface of the press jacket. After leaving the nip 22, the liquid absorbed by the depressions of the press jacket 20 is thrown off before the press jacket 20 enters the press nip 22 again.
  • the water absorbed by the press felt 26, 26 'can be removed with suction elements after leaving the press nip 22.
  • the press felts 26, 26 'can be dispensed with.
  • the fibrous web 24 is in direct contact on the one hand with the press jacket 20 and on the other hand with the counter roll 14, which together form a press nip. The latter can then be designed as a heated drying cylinder.
  • the press jacket shown in FIG. 1 can, as shown in the following figures, be designed according to the invention. 2a and 2b, different embodiments of the invention are shown in a cross-section through the longitudinal axis 20 'of the finished press jacket 20, which is not to scale and which is partially shown. The distance between the longitudinal axis 20 'and the radially innermost surface of the corresponding polymer layer of the press jacket 20 is also not shown to scale.
  • first polymer layer 20.1 is at the same time the radially outermost polymer layer of the press cover 20.
  • second polymer layer 20.2 is also the radially innermost polymer layer of the press cover 20. Both polymer layers 20.1, 20.2 are immediately adjacent to one another in the radial direction, there is no intermediate layer between these two.
  • a reinforcing structure 20 ′′ can be provided in the second polymer layer 20.2. In the present case, this is completely embedded in the polymer layer 20.2. This is indicated by the hatched circles, which can be textile surface or line structures such as fibers. that the reinforcement structure 20 "does not extend beyond the boundaries of the polymer layer 20.2.
  • the reinforcing structure 20 "here comprises a plurality of reinforcing threads 21 serving as longitudinal thread 21.1. These are arranged in the longitudinal direction of the press jacket 20 over its circumference at a distance and parallel to one another.
  • at least one further reinforcing thread 21 is provided here as a peripheral thread 21.2, which is preferably inside
  • the same polymer layer 20.1, 20.2, 20.3, in which the longitudinal threads 21.1 are also arranged, runs helically in the circumferential direction of the press casing 21.2 - seen in relation to the longitudinal axis 20 'of the press casing 20 - are arranged.
  • the first and a second polymer layer 20.1, 20.2 are made from a polyurethane. This is available, for example, from a prepolymer and a crosslinker. The respective prepolymer can be obtained by reacting an isocyanate with a polyol.
  • FIG. 2b shows a three-layer press jacket in a modification to FIG. 2a.
  • This comprises a — first radially outermost — first polymer layer 20.1, a radially innermost, third polymer layer 20.3 and a second polymer layer 20.2 arranged sandwiched between these two.
  • the arrangement relates - as also shown in FIG. 2a - starting from the longitudinal axis 20 'of the press jacket 20 in its radial direction.
  • this could also be different, so that, alternatively or additionally, such a reinforcement structure 20" could also be arranged in the first polymer layer 20.1 and / or the third polymer layer 20.3.
  • the polyurethane of the radially outermost polymer layer 20.1 has 1, 4- or 1, 3-bis (isocyanatomethyl) cyclohexane (H6XDI) as isocyanate.
  • the polyurethane of the radially inner (or innermost) polymer layer 20.2 should contain 4,4'-diphenylmethane diisocyanate (MDI), toluene-2,4-diisocyanate (TDI) or mixtures thereof as isocyanate, as well as polytetramethylene ether glycol (PTMEG) and 4, 4'-methylenebis (3-chloro-2,6-diethylaniline) (MCDEA), dimethylthiotoluenediamine (DMTDA) or mixtures thereof as crosslinkers.
  • MDI 4,4'-diphenylmethane diisocyanate
  • TDI toluene-2,4-diisocyanate
  • PTMEG polytetramethylene ether glycol
  • MCDEA 4, 4'-methylenebis (3-chloro-2,6-diethylaniline)
  • DMTDA dimethylthiotoluenediamine
  • the device has exactly one cylindrical winding mandrel 4, with a starting material 20 ′′, for example, being applied spirally to its radially outermost surface Starting material 20 "” forms the reinforcing structure 20 "of the finished press jacket 20 according to the invention after being embedded in the polymer.
  • the illustration shows an initial stage of the manufacturing process.
  • one end of the starting material 20 "' is attached to a polymer which is arranged on the outer circumference of the winding mandrel 4.
  • the one end of the starting material 20"' could also be directly, that is, directly on rest or be applied to the winding mandrel 4 without a polymer being initially provided between the starting material 20 '"and the winding mandrel 4.
  • the starting material 20'" can be a textile fabric or line structure.
  • the winding mandrel 4 is rotatably mounted about its longitudinal axis 20 ', which corresponds to the longitudinal axis of the press jacket to be produced. Longitudinal axis 20 'here extends perpendicularly into the plane of the drawing.
  • a casting material such as pourable, curable elastomeric polymer, for example polyurethane, is fed from above onto a radially outermost surface of the winding mandrel 4 or onto the starting material 20 '' via a line 5 through a casting nozzle 6.
  • Such a casting material can be used, for example, with regard to its pot life and viscosity are selected such that it does not drip off the mandrel 4 during casting, during which the mandrel 4 is rotated about its longitudinal axis in the direction of the arrow.
  • the pouring nozzle 6 is parallel to the nozzle via a suitable guide, not shown in FIG Longitudinal axis 20 'along this relatively along the winding mandrel 4.
  • the starting material 20'" is unrolled and wound into coils on the rotating mandrel 4.
  • the casting material can pass through the starting material 20 '"up to the winding mandrel 4.
  • the polymer forms a radially innermost and preferably elastomeric polymer layer, which corresponds to the polymer layer 20.2 of the press jacket from FIG. 2a, of which only part is shown in FIG. 3.
  • the casting material emerging from the casting nozzle 6 is in the present case a mixture of a prepolymer and a crosslinking agent.
  • the former is provided from a prepolymer container, not shown, in which it is stored or mixed.
  • the prepolymer is a reaction product of an isocyanate according to the invention and a polyol. In the prepolymer container, for example, it can be in the form of a prepolymer from the substances just mentioned.
  • the crosslinker can be provided in a crosslinker container.
  • the prepolymer container and crosslinker container are assigned to the device for producing a press jacket 20. They are connected in a flow-conducting manner via lines, also not shown, to a mixing chamber (not shown) which is arranged upstream of the pouring nozzle 6 in the flow direction.
  • the prepolymer-crosslinking agent mixture is thus produced upstream and outside the pouring nozzle 6, that is to say mixed in the mixing chamber. Regardless of the production of the mixture, this is then applied to the surface of the mandrel 4 to form the at least one polymer layer of the press cover 20.
  • pouring nozzles 6 could be provided. These could be connected to separate prepolymer and crosslinker containers via corresponding lines, in order to also feed different polymers to the majority of the goat nozzles 6 independently of one another.
  • the pouring nozzles 6 could then be arranged at a distance from one another along the longitudinal axis of the press jacket 20 in order to produce a plurality of polymer layers 20.1, 20.2, 20.3 by simultaneously dispensing the polymer from the pouring nozzles 6 in one casting.
  • an endless cylindrical tubular press jacket 20 which is closed about its longitudinal axis 20 ′ and whose inner circumference essentially corresponds to the outer circumference of the winding mandrel 4, is thus gradually produced over the width of the winding mandrel 4 .
  • two mandrels could be provided, which could be arranged parallel to one another with respect to their longitudinal axes.
  • the reinforcement structure 20 ′′ of the at least one polymer layer 20.1, 20.2 could also be constructed from a plurality of starting materials 20 ′′, which are placed one above the other in the radial direction and each run in the longitudinal axis direction and in the circumferential direction of the press jacket 20.

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Paper (AREA)

Abstract

L'invention concerne un revêtement de presse comprenant plusieurs couches polymères qui sont fabriquées à partir d'un polyuréthane ou qui comprennent un tel polyuréthane, ce polyuréthane pouvant être obtenu par réaction d'un isocyanate avec un polyol et un agent de réticulation, ledit revêtement de presse comprenant une couche polymère située radialement la plus à l'extérieur vue par rapport à l'axe longitudinal du revêtement de presse et une couche polymère radialement intérieure vue par rapport à l'axe longitudinal du revêtement de presse, le polyuréthane de la couche polymère située radialement la plus à l'extérieur comprenant du 1,4-ou du 1,3-bis(isocyanatométhyl) cyclohexane (H6XDI) en tant qu'isocyanate, et le polyuréthane de la couche polymère radialement intérieure comprenant du 4,4'-diphénylméthane diisocyanate (MDI), du toluène-2,4-diisocyanate (TDI) ou des mélanges de ceux-ci en tant qu'isocyanate, du polytétraméthylène-éther-glycol (PTMEG) en tant que polyol et de la 4,4'-méthylène-bis(3-chloro-2,6-diéthylaniline) (MCDEA), de la diméthylthiotoluène-diamine (DMTDA) ou des mélanges de celles-ci en tant qu'agents de réticulation. L'invention concerne également un rouleau de presse, une presse à sabot et l'utilisation d'un revêtement de presse dans une telle presse à sabot.
EP19739973.6A 2018-09-18 2019-07-11 Revêtement de presse, son utilisation et rouleau de presse, presse à sabot et utilisation d'un polyuréthane pour la fabrication d'un revêtement de presse Withdrawn EP3853412A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102018122782.5A DE102018122782A1 (de) 2018-09-18 2018-09-18 Pressmantel, dessen Verwendung sowie Presswalze und Schuhpresse
PCT/EP2019/068657 WO2020057798A1 (fr) 2018-09-18 2019-07-11 Revêtement de presse, son utilisation et rouleau de presse, presse à sabot et utilisation d'un polyuréthane pour la fabrication d'un revêtement de presse

Publications (1)

Publication Number Publication Date
EP3853412A1 true EP3853412A1 (fr) 2021-07-28

Family

ID=67297165

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19739973.6A Withdrawn EP3853412A1 (fr) 2018-09-18 2019-07-11 Revêtement de presse, son utilisation et rouleau de presse, presse à sabot et utilisation d'un polyuréthane pour la fabrication d'un revêtement de presse

Country Status (5)

Country Link
EP (1) EP3853412A1 (fr)
JP (1) JP7295245B2 (fr)
CN (1) CN112703289A (fr)
DE (1) DE102018122782A1 (fr)
WO (1) WO2020057798A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102021100483A1 (de) * 2021-01-13 2022-07-14 Voith Patent Gmbh Polyurethane Recycling

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3698984B2 (ja) * 2000-11-10 2005-09-21 ヤマウチ株式会社 シュープレス用ベルト
JP3911159B2 (ja) * 2001-12-26 2007-05-09 Ｓｒｉスポーツ株式会社 ゴルフボール
WO2009001766A1 (fr) * 2007-06-25 2008-12-31 Ichikawa Co., Ltd. Bande de presse à sabot pour la fabrication de papier
JP4516610B2 (ja) 2008-02-08 2010-08-04 イチカワ株式会社 シュープレス用ベルト
JP5161376B1 (ja) 2012-02-01 2013-03-13 イチカワ株式会社 製紙用シュープレスベルト
JP5242818B1 (ja) 2012-02-01 2013-07-24 イチカワ株式会社 製紙用シュープレスベルト
EP2841647B1 (fr) * 2012-04-27 2017-11-15 Voith Patent GmbH Rouleau presseur présentant un revêtement en polyuréthane
EP3009561B1 (fr) * 2013-06-14 2017-12-20 Ichikawa Co., Ltd. Courroie de presse à sabot pour la fabrication du papier
JP6518144B2 (ja) * 2015-06-05 2019-05-22 イチカワ株式会社 シュープレスベルト
DE102015217942A1 (de) * 2015-09-18 2017-03-23 Voith Patent Gmbh Pressmantel und Verfahren zur Herstellung eines solchen
CN107022920B (zh) * 2016-02-01 2021-04-20 市川株式会社 靴形压榨带

Also Published As

Publication number Publication date
DE102018122782A1 (de) 2020-03-19
JP7295245B2 (ja) 2023-06-20
JP2022501529A (ja) 2022-01-06
WO2020057798A1 (fr) 2020-03-26
CN112703289A (zh) 2021-04-23

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