EP2788547B1 - Toile de presse pour une machine pour la fabrication de papier mousseline et une machine pour la fabrication de papier mousseline - Google Patents

Toile de presse pour une machine pour la fabrication de papier mousseline et une machine pour la fabrication de papier mousseline Download PDF

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Publication number
EP2788547B1
EP2788547B1 EP12808292.2A EP12808292A EP2788547B1 EP 2788547 B1 EP2788547 B1 EP 2788547B1 EP 12808292 A EP12808292 A EP 12808292A EP 2788547 B1 EP2788547 B1 EP 2788547B1
Authority
EP
European Patent Office
Prior art keywords
press belt
belt
press
cfm
starting material
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.)
Not-in-force
Application number
EP12808292.2A
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German (de)
English (en)
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EP2788547A1 (fr
Inventor
Hubert Walkenhaus
Johan Einarsson
Ademar Lippi Alves Fernandes
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
Priority claimed from DE102011087983A external-priority patent/DE102011087983A1/de
Priority claimed from DE102011087986A external-priority patent/DE102011087986A1/de
Application filed by Voith Patent GmbH filed Critical Voith Patent GmbH
Publication of EP2788547A1 publication Critical patent/EP2788547A1/fr
Application granted granted Critical
Publication of EP2788547B1 publication Critical patent/EP2788547B1/fr
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Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F1/00—Wet end of machines for making continuous webs of paper
    • D21F1/66—Pulp catching, de-watering, or recovering; Re-use of pulp-water
    • D21F1/80—Pulp catching, de-watering, or recovering; Re-use of pulp-water using endless screening belts
    • 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
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F11/00—Processes for making continuous lengths of paper, or of cardboard, or of wet web for fibre board production, on paper-making machines
    • D21F11/14—Making cellulose wadding, filter or blotting paper
    • 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
    • D21F3/0272—Wet presses in combination with suction or blowing devices
    • 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
    • D21F3/04—Arrangements thereof
    • D21F3/045—Arrangements thereof including at least one extended press nip
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F7/00—Other details of machines for making continuous webs of paper
    • D21F7/08—Felts
    • D21F7/086—Substantially impermeable for transferring fibrous webs

Definitions

  • the present invention relates to a machine for producing fibrous web material, in particular tissue paper, comprising a fiber-containing starting material used for the production of web material from a forming section to a permeable dewatering belt conveying a suction / pressing section and a press belt arrangement associated with the suction / pressing section, wherein in the suction / pressing section the starting material is received between the press belt assembly and the dewatering belt and the press belt assembly presses the starting material and the dewatering belt against a suction assembly of the suction / pressing section.
  • the invention further relates to a press belt for producing fibrous web material, in particular tissue paper, in particular in a machine comprising a fibrous starting material used for the production of web material from a forming section to a suction / pressing section transporting permeable dewatering belt and one of the suction / pressing Section associated with the press belt assembly, wherein in the suction / pressing section, the starting material between the press belt assembly and the dewatering belt is received and pressed the press belt assembly, the starting material and the dewatering belt against a suction assembly of the suction / pressing section.
  • tissue paper has one in comparison with, for example, used as writing material or packaging material paper much larger void volume fraction or a stronger surface texturing, for example, to achieve better absorbency and better wiping power when used in the home.
  • tissue paper in this known in the Fig.
  • suction / pressing section 18 comprises a press belt arrangement 20 with two nested press belts 22, 24. Between the outer of these two press belts, so the press belt 22, and the dewatering belt 14 is in the suction / pressing section 18, the starting material for the finished sheet 26 sandwiched. In this configuration, the feedstock is moved across a suction assembly, generally designated 28, of the suction / pressing section 18.
  • This suction arrangement 28 may comprise, for example, a roller-like element, at the inner volume region of which a negative pressure is generated in order to withdraw liquid, generally water, from the starting material and through the dewatering belt 14. After passing through the suction / pressing section 18, the sheet 26 to be produced is moved through a nip 28 between the suction / pressing assembly 18 and a dry cylinder or Yankee cylinder 30.
  • the dewatering belt 14 with a comparatively coarse, rough or strongly surface-structured shape, for example as a fabric tape, can be provided.
  • the press belt assembly 20 takes over the task of producing a surface texturing in the web material 26 substantially the outside provided pressing belt 22.
  • the running within the press belt 22 and partially along with this over guide rollers guided press belt 24 is essentially intended to provide the required contact pressure against the suction assembly 28.
  • this press belt 24 can be subjected to a voltage of, for example, up to 8 kN / m.
  • the US2007 / 0251659 A1 discloses a press belt for producing tissue paper comprising a starting material contact surface and having a tensile strength of at least 30 kN / m in a belt longitudinal direction
  • WO 2012/143163 A1 Applies to the prior art according to Article 54 (3) EPC and also discloses a press belt for making tissue paper comprising a starting material contact surface and having a tensile strength of at least 20 kN / m in a belt longitudinal direction. It is the object of the present invention to provide a machine for the production of fibrous web material, in particular tissue paper, with which in a simplified structure, in particular in a suction / pressing section, the structuring of the produced web material can be influenced in a defined manner.
  • this object is achieved by a press belt and a machine for producing fibrous web material, in particular tissue paper, according to claim 1 and claim 5. It is further contemplated that the press belt assembly a single and comprising a press belt providing a raw material contact surface.
  • the suction / pressing section in the production of tissue paper or in a machine provided for this purpose in the suction / pressing section, it is not possible to work with a plurality of press belts nested one inside the other, but only with a single press belt.
  • This provides both the starting material contact surface and the required contact pressure against a suction assembly of the suction / pressing section.
  • the structure of the press belt arrangement or the suction / pressing section can be significantly simplified, since only a single press belt and thus also drive or deflection elements are provided for a single press belt.
  • the press belt is constructed in the region of its starting material contact surface with yarn and / or fiber material, of which at least 60%, preferably at least 80%, on most preferably about 100%, having a fineness between 44 dtex and 1.7 dtex, preferably of at most 17 dtex, more preferably at most 11 dtex or at most only 6 dtex, very preferably at most 3 dtex.
  • yarn and / or fiber material of which at least 60%, preferably at least 80%, on most preferably about 100%, having a fineness between 44 dtex and 1.7 dtex, preferably of at most 17 dtex, more preferably at most 11 dtex or at most only 6 dtex, very preferably at most 3 dtex.
  • the press belt of which at least 60%, preferably at least 80%, most preferably about 100%, a minimum transverse dimension of at most 70 ⁇ m, preferably at most 27 ⁇ m, even more preferably at most 23, is constructed in the region of its starting material contact surface with yarn and / or fiber material ⁇ m, most preferably at most 13 ⁇ m.
  • the focus is placed less on obtaining as strong as possible texturing of the web to be produced, but more on the drainage capacity in the suction / pressing section, so that there already a very high proportion of in the starting material for the sheet material contained liquid can be obtained.
  • This relatively fine surface structure of the press belt while having a high tensile strength to produce the required contact pressure, can be achieved by the press belt comprising a base structure and at least one support layer on the base structure, the starting material contact surface being provided on a support layer.
  • the base structure may also include multiple layers of the type described above.
  • the fabric when constructed as a fabric, the fabric may be multi-ply in nature, that is, for example, with a plurality of plies of yarns extending in a longitudinal direction and / or a plurality of plies in a transverse direction of running yarns.
  • combinations of different structures are possible.
  • the use of a film, with defined or undefined openings to produce a fluid permeability is initially in clear contradiction to the use of a fabric. But even if the properties are stored differently, the use of a film offers quite distinct advantages over a fabric.
  • the base structure provides the starting material contact surface.
  • the only press belt present there in a suction / pressing section must also absorb the tensile load, in particular in the longitudinal direction of the belt, in order to provide the required contact pressure.
  • the base structure is constructed with structural elements with polyester material, preferably PET material, and / or PA material and / or PEEK material.
  • polyester material preferably PET material, and / or PA material and / or PEEK material.
  • Nomex, Kevelar and kindred are building materials that experience a relatively small elongation even at relatively high tensile load and thus equally ensure consistent working conditions over the service life.
  • Each of the materials mentioned has its own characteristic advantages, which, however, have to be paid for in part with other disadvantages or particularly high costs.
  • these threads may be constructed as monofilament yarns, multifilament yarns or twines or combinations thereof.
  • At least one support layer comprises structural strength elements running in a band longitudinal direction.
  • This can be for example Be design as or with a scrim in a band longitudinal direction extending scrim yarns.
  • a membrane yarns or threads may be incorporated into the membrane, which then preferably also extend in the tape longitudinal direction.
  • the drainage capacity in the suction / pressing section can be influenced by the fact that at least one support layer is at least partially covered with permeability-influencing material and / or interspersed.
  • the press belt has an air permeability of at least 15 cfm (about 7.08 10 -3 m 3 / s), better at least 20 cfm (about 9.44 10 -3 m 3 / s), or at least 25 cfm (about 11.8 10 -3 m 3 / s), wherein it is preferred that the permeability to air even in a range of at least 50 cfm (about 23.6 10 -3 m 3 / s), and, ideally, even at least over 80 cfm (about 37.76 10 -3 m 3 / s).
  • a comparatively high air permeability it is ensured that due to the high air throughput, a correspondingly high proportion of liquid can be carried out of the building material.
  • the press belt has an air permeability of not more than 1200 cfm (about 0.566 m 3 / s), at most 700 cfm to 800 cfm (about 0.33 to 0.377 m 3 / s), preferably at most 500 cfm to 600 cfm (about 0.235 to 0.283 m 3 / s), most preferably in the range from 200 to 400 cfm (about 0.094 to 0.188.78 m 3 / s), having.
  • the press belt in a tape longitudinal direction a Tensile strength of at least 20 kN / m, preferably at least 50 kN / m, most preferably at least 70 kN / m.
  • the press belt have a starting material contact surface of at least 15%, preferably at least 25%, most preferably at least 30%.
  • the raw material contact surface is the area with respect to the total area of the press belt which comes into press-contact contact with the sheet material or raw material to be produced in the suction / pressing section.
  • These are, in particular, those surface regions in which protuberances projecting in the press belt in the direction of the starting material, for example at bending points of the yarns present in a fabric structure, are present.
  • the press belt is temperature-stable up to a temperature of 70 ° C, preferably 80 ° C, most preferably 90 ° C. This means that at the limit specified in each case the building material of the press belt in a substantially unchanged compared to lower temperatures, in particular not passed into a flowable state configuration is present.
  • the press belt has a thickness of at most 5 mm, preferably at most 3 mm, most preferably at most 2 mm.
  • the press belt has an air permeability of at least 15 cfm (about 7.08 10-3 m 3 / s), preferably at least 50 cfm (about 23.6 10-3 m 3 / s), most preferably at least 80 cfm (ca. 37.76 10-3 m 3 / s) ,, on.
  • the press belt has an air permeability of at most 1200 cfm (about 0.566 m 3 / s), at most 700 cfm to 800 cfm (about 0.33 to 0.377 m 3 / s), preferably at most 500 cfm up to 600 cfm (about 0.235 to 0.283 m 3 / s), most preferably in the range of 200 to 400 cfm (about 0.094 to 0.188.78 m 3 / s).
  • the press belt is suitable for operation as a single press belt within a press belt arrangement associated with a suction / press section.
  • the invention provides a machine and a press belt for the production of web materials, in particular tissue webs, which make it possible to treat the tissue web within a press section by a single press belt providing a starting material contact surface.
  • the press belt can have at least one support layer which contacts the web to be treated or made solely from a base structure which then also provides the starting material contact surface. If the press belt comprises a support layer so that it can be identified as press felt, it should preferably be characterized by a minimum permeability of at least 15 cfm (about 7.08 10 -3 m 3 / s). If the press belt is a belt or a screen, that by a blank base structure is characterized, it is preferred that the press belt has a maximum permeability of 1200 cfm (about 0.566 m 3 / s).
  • the press belt can be operated under high tensile loads of over 20 kN / m, in very preferred embodiments even up to over 70 kN / m within a machine and in contact with a material web to be produced ,
  • the press belt in addition to the already described starting material contact surface as the only existing press belt within a press belt assembly automatically on a contact surface, which is in direct contact with the machine.
  • FIG. 2 and 3 the structure of an inventively designed machine for the production of web material, in particular tissue paper described, the basic structure of such a machine 10 may be such as in Fig. 1 shown and described above.
  • Fig. 2 and 3 are illustrative of the principles of the present invention essential aspects presented.
  • the Fig. 2 shows the suction / pressing section 18 of a machine 10 constructed according to the invention with the press belt assembly 20 provided therein.
  • the two in Fig. 1 recognizable, nested press belts 22, 24 are used, in the structure of the invention, only a single press belt 32 is provided. This is guided over a plurality of deflecting or driving rollers 34, 36, 38, 40, such that it presses in a peripheral region of the suction assembly 28, the starting material for the sheet 26 to be produced and also the dewatering belt 14 against the outer periphery thereof.
  • deflecting or driving rollers 34, 36, 38, 40 such that it presses in a peripheral region of the suction assembly 28, the starting material for the sheet 26 to be produced and also the dewatering belt 14 against the outer periphery thereof.
  • the press belt assembly 20 comprises only a single press belt 32, their design is much cheaper because not only only a single band, but also the deflection or drive rollers would have to be provided for only a single band.
  • the single press belt 32 must have a sufficiently high tensile strength to provide sufficient stability even under appropriate stress over the service life To ensure the lowest possible elongation.
  • the press belt 32 may be provided with a tensile strength which is ideally at least 30 kN / m in order to be able to install it in the suction / pressing section with sufficient tension.
  • the stated 30 kN / m tensile strength be clearly exceeded by the press belt according to the invention and that it withstands a continuous tensile load of more than 50 kN / m or even more than 70 kN / m.
  • the only press belt 32 in addition to the above-mentioned tensile strength and a corresponding texture on his in Fig. 2 have outer raw material contact surface 42.
  • This structure of the press belt 32 is transferred to the starting material during the sandwiching of the starting material therebetween and the dewatering belt 14 and is thus at least partially imaged in the web material 26.
  • Fig. 3 is a cross section, ie a section through the press belt 32 in a tape transverse direction Q, shown in fragmentary form. It should be noted that, correspondingly, the band longitudinal direction is orthogonal to this band transverse direction Q and in the illustration of FIG Fig. 3 is orthogonal to the drawing plane. This band longitudinal direction also corresponds to that in Fig. 1 recognizable transport direction L, but without making any statement about an orientation.
  • the press belt 32 has a base structure 44 as a substantial, in particular the required tensile strength decisively providing system area.
  • This is in the example shown as a tissue in the Strip longitudinally extending longitudinal threads 46 and thus interwoven and in the strip transverse direction Q extending transverse threads 48 constructed.
  • the longitudinal threads 46 can be warp threads and the transverse threads 48 can be weft threads.
  • This embodiment is particularly suitable when the base structure 24 is not manufactured in endless fashion, but is woven as a band section with end regions to be joined together.
  • the longitudinal threads 46 may also be the weft threads and the transverse threads 48 may be the warp threads.
  • the weave for the basic structure 24 can be chosen arbitrarily.
  • a plurality of fabric layers can also be structurally connected to one another.
  • the use of so-called leno weave is conceivable.
  • the weave may be open or endless.
  • the base structure 44 as a woven fabric, it could also be constructed, for example, as a yarn or thread layer wound in a helical or helical manner, with the yarns or yarns providing the base structure 44 essentially also being formed by this spiral or screw-like winding extend the band longitudinal direction and thus ensure its structural strength.
  • the use of a warp knit as a basic structure is conceivable, as well as the use of a so-called spiral limb structure or Spiralsieb Modell.
  • spirally or helically wound and in the transverse direction of the band Q extending spiral members are arranged overlapping each other and tied together by engaging in the overlap region coupling threads or wires in the manner of a chain structure.
  • a building material for the structural elements so threads or yarns or spiral members of the base structure 24 is particularly polyester material such.
  • PET material due to its high tensile strength particularly advantageous.
  • PA material, PEEK material or other suitable materials such as in particular the mentioned materials Nomex or Kevlar.
  • Another advantage of this building material in addition to achieving a correspondingly high tensile strength is that it is temperature stable at temperatures of up to 90 ° C, so undergoes only a very small strength affecting the same change. This is important because in a suction / pressing section 18 hot air can be used to improve the drainage capacity, which can lead to a corresponding heating of the pressing belt 32.
  • yarns or filaments may be used as monofilaments, multifilaments or threads. Combinations of these yarn or thread types are also possible, so that, for example, the longitudinal threads 46 and the transverse threads 48 are formed differently with respect to one another in terms of their structure and / or their construction material. Even with multi-layered structure, for example a fabric structure, different fabric layers can be formed with different types of yarns or building materials.
  • the press belt 32 may, for example, be constructed so that the starting material contact surface, ie the surface thereof, with which the starting material introduced via the dewatering belt 14 comes into contact or against the dewatering belt 14 is provided by the base structure 44 is provided.
  • the press belt 32 exclusively comprises the base structure 44. If appropriate, this could be coated on its running side, that is to say the side remote from the starting material, with at least one layer increasing the wear resistance.
  • the starting material contact surface on the base structure 44 itself, it is ensured that the yarns or threads interwoven, for example, in the region of the points of curvature of the base material, are impressed into the starting material and thus lead to a comparatively strong texturing thereof.
  • the contact surface with which the starting material is contacted and pressed directly against the dewatering belt 14 can be in the range of 30% of the total area of the press belt 32 and above.
  • a membrane-like support layer 50 is provided.
  • This may in principle comprise a grid-like structure with, for example, polygonal, preferably rectangular or square grid openings 52 in order to achieve the required air permeability.
  • elliptical, in particular circular, grid openings or irregularly shaped grid openings may be provided in the longitudinal direction extending in the strip grid bars 54 as the longitudinal strength increasing structural strength yarns 56, which in turn may be formed, for example, as monofilaments, multifilaments or threads.
  • the membrane-like support layer 50th can the above-mentioned materials, especially polyester material such. As PET material used.
  • a support layer 58 formed with fiber material is provided.
  • This may be non-woven or constructed with so-called staple fibers, wherein the fiber material used for this purpose can in turn be constructed with the above-mentioned construction materials, preferably polyester material.
  • the QueenmaterialKeyober Structure 42 providing support layer 62 of fiber material is formed as a scrim support layer 64. This is at the abutting boundary surfaces of the two built up with fiber material support layers 58, 62 provided or added between these two support layers.
  • This laid-up layer 64 comprises a multiplicity of yarns or yarn sections 66 extending in the longitudinal direction of the strip, the technical realization also being able to take place here with a spiral or screw-type configuration.
  • This support layer 64 with the thread or yarn sections 66 extending essentially in the longitudinal direction of the strip increases the structural strength in the longitudinal direction of the strip.
  • the firm cohesion of the various support layers 50, 58, 62 and 64 with each other and also with the base structure 44 can be done for example by needling. Other physical and / or chemical connection mechanisms, such. B. sewing or gluing, are possible. It can also be of great advantage if the support layers 50, 58, 62 and 64 with each other, the base structure in itself and / or both types are connected to each other by welding, in particular ultrasonic welding.
  • the ultrasonic welding allows a high-precision machining, which was previously regarded as rather unsuitable, especially in connection with the treatment of support layers, in the Connection with the present invention because of the desired extremely high tensile strengths in the press belt but is particularly preferred.
  • FIG. 3 illustrates by way of example and more schematically the structure of two different preferred embodiments.
  • the support layer 62 providing the starting material contact surface 42 is constructed with threads or fibers having a fineness of at most 6 dtex, preferably at most 3 dtex, in which case, for example can be that a large part of these fibers, so for example at least 60%, preferably at least 80% thereof, are provided with the appropriate fineness.
  • the minimum transverse dimension corresponds, for example in the case of a circular cross-section, to the diameter for an elliptical cross-sectional geometry, the minimum transverse dimension corresponds to twice the semi-axis of the ellipse. This means that it is ensured according to the invention that the surface roughness on the starting material contact surface 42 with threads or fibers of, for example, a maximum of 3 dtex is achieved.
  • the fineness of the support layer which also provides the starting material contact surface 42, it is also possible to ensure a sufficiently high flowability, ie permeability to air.
  • This can be in a range of at least 15 cfm (about 7.08 10-3 m 3 / s), better at least 20 cfm (about 9.44 10-3 m 3 / s), or at least 25 cfm (about 11.8 10-3 m 3 / s), it being preferred that the permeability for air is even in a range of at least 50 cfm (approximately 23.6 10-3 m 3 / s) and ideally even at least is above 80 cfm (about 37.76 10-3 m 3 / s), so that relatively high demands are placed on the air permeability on the one hand and the comparatively low surface roughness on the other hand, which, however, can be realized with the construction according to the invention.
  • the permeability of the pressing belt 32 is influenced in some regions by material 68.
  • This can be applied, for example, to the surface of the support layer 58 before the application of the support layer 64 or the support layer 62 or also into the volume of the support layer 58.
  • this material 68 does affect the permeability to air, but substantially not the surface structuring in the region of the starting material contact surface 42.
  • This material may include, for example, silicone material or polyurethane material bonded to the fibers of the fibrous material by reflow, which ultimately provides a reduction in the volume area exposed to air flow, and thus may reduce air permeability, while advantageously affecting the stiffness of the press belt 32 as well can.
  • resin materials such as acrylic resin materials, or the use of other chemical treatment methods possible.
  • Fig. 3 structure shown other ways of layering the support layers or more or less support layers can be provided. This will depend essentially on which structuring is to be achieved with the machine according to the invention in the web material to be produced, that is, for example, tissue paper. In addition, of course, this basically depends on which type, quality, in what grammage and from what available Raw materials the web material is to be manufactured.
  • this material 68 although the permeability to air, but not the surface structuring in the area
  • This material may comprise, for example, silicone material, or even polyurethane material bonded by fusion to the fibers of the fibrous material, which ultimately provides for a reduction in the volume area exposed to air flow and thus may reduce air permeability, at the same time
  • the stiffness of the press belt 32 may also advantageously influence.
  • other resin materials such as acrylic resin materials, or the use of other chemical treatment methods possible.
  • an air permeability of the press belt 32 of less than 1200 cfm (about 0.566 m 3 / s), or even less than 700 cfm to 800 cfm (about 0.33 to 0.377 m 3 / s), preferably even only between about 200 cfm to 600 cfm (about 0.094 to 0.283 m 3 / s) or even only 200 cfm to 400 cfm (about 0.094 to 0.188 m 3 / s) , to reach.
  • This is an air permeability which ensures a sufficiently good dewatering characteristic by the air drawn through the press belt 32 and thus also the starting material, but on the other hand also ensures that the desired structuring properties on the starting material contact surface 42 can be achieved.

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Claims (12)

  1. Bande de pressage (32) pour la fabrication de matériau fibreux en nappe, en particulier de papier-tissu, comprenant une surface de contact avec le matériau de départ (42), la bande de pressage présentant, dans une direction longitudinale de la bande, une résistance à la traction d'au moins 20 kN/m, de préférence d'au moins 30 kN/m, encore plus préférablement d'au moins 50 kN/m et le plus préférablement d'au moins 70 kN/m, et la bande de pressage (32) étant construite, dans la région de sa surface de contact avec le matériau de départ (42), avec un matériau en fil et/ou en fibre, dont au moins 60 %, de préférence au moins 80 %, le plus préférablement environ 100 % présentent une finesse entre 44 dtex et 1,7 dtex, de préférence de 17 dtex au maximum, plus préférablement de 11 dtex au maximum ou au maximum de seulement 6 dtex, tout préférablement de 3 dtex au maximum.
  2. Bande de pressage selon la revendication 1,
    caractérisée en ce que
    la bande de pressage (32) présente une perméabilité à l'air d'au moins environ 7,08 10-3 m3/s (15 cfm), de préférence d'au moins environ 23,6 10-3 m3/s (50 cfm), le plus préférablement d'au moins 37,76 10-3 m3/s (80 cfm).
  3. Bande de pressage selon l'une quelconque des revendications 1 à 2,
    caractérisée en ce que
    la bande de pressage (32) présente une perméabilité à l'air de tout au plus environ 0,566 m3/s (1200 cfm), au maximum d'environ 0,33 à 0,377 m3/s (700 cfm à 800 cfm), de préférence au maximum d'environ 0,235 à 0,283 m3/s (500 cfm à 600 cfm), le plus préférablement dans une plage d'environ 0, 094 à 0,188 m3/s (200 à 400 cfm).
  4. Bande de pressage selon l'une quelconque des revendications 1 à 3,
    caractérisée en ce que
    la bande de pressage (32) est adaptée pour être utilisée en tant que bande de pressage unique à l'intérieur d'un agencement de bande de pressage (20) associé à une section d'aspiration/pressage (18).
  5. Machine pour la fabrication de matériau fibreux en nappe, en particulier de papier-tissu, comprenant une bande d'égouttage (14) perméable transportant un matériau de départ fibreux utilisé pour la fabrication de matériau en nappe (26) depuis une section de formage (12) jusqu'à une section d'aspiration/pressage (18) ainsi qu'un agencement de bande de pressage (20) associé à la section d'aspiration/pressage (18), le matériau de départ dans la section d'aspiration/pressage (18) étant reçu entre l'agencement de bande de pressage (20) et la bande d'égouttage (14) et l'agencement de bande de pressage (20) pressant le matériau de départ et la bande d'égouttage (14) contre un agencement d'aspiration (28) de la section d'aspiration/pressage (18) et
    l'agencement de pressage (20) comprenant une bande de pressage unique (32) fournissant une surface de contact avec le matériau de départ (42), la bande de pressage (32) étant réalisée selon l'une quelconque des revendications 1 à 4.
  6. Machine selon la revendication 5,
    caractérisée en ce que la bande de pressage (32), dans la région de sa surface de contact avec le matériau de départ (42), est construite avec un matériau en fil et/ou en fibre, dont au moins 60 %, de préférence au moins 80 %, le plus préférablement environ 100 %, présente une dimension transversale minimale de 70 µm au maximum, de préférence de 27 µm au maximum, le plus préférablement de 13 µm au maximum.
  7. Machine selon l'une quelconque des revendications 5 ou 6, caractérisée en ce que la bande de pressage (32) comprend une structure de base (44), la structure de base étant construite avec :
    - un tissu, et/ou
    - un canevas, et/ou
    - un tricot chaîne, et/ou
    - une structure à organes en spirale, et/ou
    - un tissu à point de gaze, et/ou
    - un film.
  8. Machine selon la revendication 7,
    caractérisée en ce que la structure de base (44) fournit la surface de contact avec le matériau de départ.
  9. Machine selon l'une quelconque des revendications 7 à 8,
    caractérisée en ce qu'au moins une couche d'appui (50, 58, 62, 64) est prévue sur la structure de base (44), la surface de contact avec le matériau de départ (42) étant fournie sur une couche d'appui (62).
  10. Machine selon la revendication 9,
    caractérisée en ce qu'au moins une couche d'appui (50, 58, 62, 64) est réalisée avec :
    - une couche de matériau fibreux (58, 62),
    - une couche de canevas (64),
    - une couche membrane (50).
  11. Machine selon la revendication 9 ou 10,
    caractérisée en ce qu'au moins une couche d'appui (50, 64) comprend des éléments de renforcement structuraux (56, 66) s'étendant dans une direction longitudinale de la bande.
  12. Machine selon l'une quelconque des revendications 5 à 11,
    caractérisée en ce que la bande de pressage (32) présente une surface de contact avec le matériau de départ d'au moins 15 %, de préférence d'au moins 25 %, le plus préférablement d'au moins 30 %.
EP12808292.2A 2011-12-08 2012-12-07 Toile de presse pour une machine pour la fabrication de papier mousseline et une machine pour la fabrication de papier mousseline Not-in-force EP2788547B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102011087983A DE102011087983A1 (de) 2011-12-08 2011-12-08 Maschine zur Herstellung von faserhaltigem Bahnenmaterial, insbesondere Tissue-Papier
DE102011087986A DE102011087986A1 (de) 2011-12-08 2011-12-08 Maschine zur Herstellung von faserhaltigem Bahnenmaterial, insbesondere Tissue-Papier
PCT/EP2012/074780 WO2013083773A1 (fr) 2011-12-08 2012-12-07 Machine de production de papier ouaté

Publications (2)

Publication Number Publication Date
EP2788547A1 EP2788547A1 (fr) 2014-10-15
EP2788547B1 true EP2788547B1 (fr) 2017-10-11

Family

ID=47458883

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12808292.2A Not-in-force EP2788547B1 (fr) 2011-12-08 2012-12-07 Toile de presse pour une machine pour la fabrication de papier mousseline et une machine pour la fabrication de papier mousseline

Country Status (6)

Country Link
US (1) US9359723B2 (fr)
EP (1) EP2788547B1 (fr)
CN (1) CN103987893B (fr)
BR (1) BR112014013929B1 (fr)
CA (1) CA2858677C (fr)
WO (1) WO2013083773A1 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103987893B (zh) * 2011-12-08 2016-01-20 福伊特专利公司 用于制造薄纸的机器和压带
WO2016066375A1 (fr) * 2014-10-29 2016-05-06 Voith Patent Gmbh Dispositif d'égouttage d'une bande de matière fibreuse
DE102016123433B4 (de) * 2016-12-05 2019-01-10 Voith Patent Gmbh Pressanordnung
US20230137354A1 (en) * 2021-11-04 2023-05-04 The Procter & Gamble Company Web material structuring belt, method for making and method for using
WO2023081746A1 (fr) * 2021-11-04 2023-05-11 The Procter & Gamble Company Courroie de structuration de matériau en bande, procédé de fabrication et procédé d'utilisation
CA3180938A1 (fr) * 2021-11-04 2023-05-04 The Procter & Gamble Company Courroie de structure de materiau en toile, methode de fabrication et methode d'utilisation

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US6149767A (en) * 1997-10-31 2000-11-21 Kimberly-Clark Worldwide, Inc. Method for making soft tissue
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Also Published As

Publication number Publication date
CN103987893B (zh) 2016-01-20
CN103987893A (zh) 2014-08-13
WO2013083773A1 (fr) 2013-06-13
CA2858677C (fr) 2021-07-06
US9359723B2 (en) 2016-06-07
US20140345822A1 (en) 2014-11-27
CA2858677A1 (fr) 2013-06-13
BR112014013929B1 (pt) 2022-01-04
BR112014013929A2 (pt) 2018-09-25
EP2788547A1 (fr) 2014-10-15

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