Conveyor belts, especially transfer belts for paper machines

Abstract

To provide a transfer belt for a paper machine, characterized by that it can be manufactured by relatively small labor and simultaneously has relatively long service life and optimal operation characteristics.SOLUTION: The invention relates to a conveyor belt for a paper machine, especially a transfer belt, including a paper side aimed to support a paper web and a machine side facing the opposite side of the paper side, wherein the conveyor belt is characterized by being assembled with a carrier (1) and a water-impermeable structural material (4), the carrier (1) is partially or perfectly buried in the water-impermeable structural material (4), the water-impermeable structural material (4) forms a paper contact surface (5) of the paper side and a machine contact surface (6) of the conveyor belt on the machine side, and the carrier (1) is designed as a multiaxial carrier.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a conveyor belt, in particular a transfer belt, for a papermaking machine having a paper side intended to support a paper web and a machine side facing away from said paper side, comprising a carrier and a water-impermeable structural material in which said carrier is partially or completely embedded and which forms the paper contact surface of said paper side and the machine contact surface of the conveyor belt on said machine side. [Background technology]

[0002] Modern high-speed paper machines are today designed for speeds of about 1,800-2,000 m / min. Since productivity improvements are now often achieved simply by increasing machine speeds, it can be assumed that paper machine speeds will continue to increase.

[0003] An increase in speed necessarily results in a corresponding increase in tension on the web as it is transported through the paper machine. Therefore, it is necessary to support the paper web as it passes through the paper machine.

[0004] In the press section, the paper machine is fully supported by the press felts that circulate through the press section. However, problems arise in areas where there is no support from the press felt. This is especially true on the path from the press section to the dryer section, where the wet strength of the paper web is not sufficient to withstand the high tension forces.

[0005] To guide the paper web in these areas where there is no support from the press felt, especially in the transition area from the press section to the dryer section, so-called transfer belts are used, which function as pure conveying belts without dewatering function. These transfer belts usually have a smooth and uniform surface with which the paper web comes into direct contact and, due to their special topographical properties, ensure perfect web take-off, excellent web support and problem-free discharge of the paper web.

[0006] Examples of routing of transport belts in the press section of a paper machine can be found, for example, in figures 1 to 3 of EP 0 576 115 A1.

[0007] A transport belt of the type mentioned at the outset is described, for example, in DE 20 2017 101 585 U1 which is due to the Applicant.

[0008] It has a carrier designed as a circular fabric with warp and weft threads and a fiber fleece arranged on the machine side of the carrier. The carrier and the fiber fleece are embedded in a layer of construction material made of an elastomeric material, in particular polyurethane. The construction material thus forms the contact surface for the paper web both on the paper side of the transport belt and on the machine side as the contact surface for the rollers of the paper machine. [Prior art documents] [Patent documents]

[0009] [Patent Document 1] European Patent Application Publication No. 0576115 [Patent Document 2] German Utility Model No. 202017101585 Summary of the Invention [Problem to be solved by the invention]

[0010] Previously known transport belts are capable in principle. However, the demand for higher machine speeds and the use of more fillers, more recycled fibers, etc., as well as the trend towards lower basis weights, entails the need to constantly improve web performance and in particular to further optimize the transport of the paper web from the press section to the dryer section.

[0011] The invention is therefore based on the object of specifying a conveyor belt of the type mentioned at the outset, which can be produced with relatively little effort and which at the same time is characterised by a relatively long service life and optimal operating properties. [Means for solving the problem]

[0012] According to the invention, this object is achieved in a conveyor belt of the type mentioned at the outset, in which the carrier is designed as a multi-axle carrier.

[0013] The invention is therefore based on the idea of ​​designing the carrier as a multi-axis carrier, which ensures the structural strength of the conveyor belt.

[0014] It has been shown that a particularly stable carrier can be obtained from the multiaxial layer, resulting in a particularly long service life and operating time of the conveyor belt according to the invention. Furthermore, the carrier can be produced with relatively little effort.

[0015] The use of multiaxial layers according to the invention offers the further advantage that the dimensional limitations of conventionally produced fibrous webs, especially carriers for felts designed as flat and / or circular fabrics, can be easily overcome.

[0016] A multiaxial layer can be obtained, for example, by wrapping one or more partial web strips around the longitudinal direction of the conveyor belt and progressively spiralling them in the transverse direction transverse to the longitudinal direction.

[0017] In other words, a fibrous web can be obtained from partial web strips having a predetermined width by helical winding, which width exceeds the width of the partial web strips by many times. The final width of the conveyor belt can be achieved very flexibly, in particular by adjusting the width of the partial web strips and the number of windings.

[0018] Another advantage of multiaxial carriers compared to conventional endless carriers, especially in comparison with circular fabrics, is the possibility to control the product properties without relatively large technical efforts by variously introducing different CD materials, for example by incorporating suitable weft threads, in contrast to the corresponding preparation of warp beams for circular fabrics. By targeted and individually adapted use of weft threads with defined thread materials, thread structure, thread diameter or thread strength and thread density [number / cm], the carrier can be optimized both in terms of dimensional stability (especially CD) and permeability with the aim of complete impregnation into the polymer matrix.

[0019] According to a preferred embodiment of the present invention, the carrier has at least two superimposed multiaxial layers extending in the longitudinal or machine direction of the carrier and in a transverse direction transverse to the longitudinal direction, the multiaxial layer viewed in the transverse direction being at least partially, preferably completely, formed from a plurality of adjacent partial webs arranged adjacent to one another, the partial webs comprising warp threads extending in the partial web longitudinal direction and weft threads extending in a partial web transverse direction transverse to the partial web longitudinal direction, the partial web longitudinal directions of the partial webs being inclined with respect to the longitudinal direction of the respective multiaxial layer and forming angles α, α' therewith, and the partial web transverse directions of the partial webs being inclined with respect to the transverse direction of the respective multiaxial layer and forming angles β, β' with the transverse direction.

[0020] In one embodiment of the present invention, it may be provided that the angle α that the partial web longitudinal direction of a multiaxial layer makes with the longitudinal direction of this multiaxial layer and the angle α' that the partial web longitudinal direction of the above or another multiaxial layer makes with the longitudinal direction of this other multiaxial layer coincide in quantity and / or have opposite orientations.

[0021] Similarly, the angle β that a partial web cross direction of a multiaxial layer makes with the cross direction of this multiaxial layer and the angle β″ that a partial web cross direction of the same or another multiaxial layer makes with the cross direction of this other multiaxial layer can be equal in amount and / or opposite in orientation.

[0022] If the partial webs of the two multiaxial layers have the same width in the transverse direction of the partial webs, it makes sense for the angles to match in terms of quantity and have opposite orientations, which allows for a particularly uniform distribution of forces. If the partial webs of the multiaxial layers have different widths, it still makes sense for the angles α, α' and β, β' to be offset from one another but have opposite orientations.

[0023] In one embodiment of the invention, for at least one multiaxial layer, the angle α, α' between the partial web longitudinal direction of the multiaxial layer and the longitudinal direction of the multiaxial layer is at least 0.6°, in particular at least 1.5°, preferably at least 2° and / or at most 10°, in particular at most 7°, preferably at most 5°.

[0024] The setting of the angle size is inversely proportional to the length of the conveyor belt when the width of the partial web is specified, i.e. the angle that the longitudinal direction of the partial web of the multiaxial layer makes with the longitudinal direction of this multiaxial layer decreases as the length of the conveyor belt increases.

[0025] It is further advantageous for at least one multiaxial layer that the warp threads of the partial webs of the multiaxial layer extend parallel or essentially parallel to one another and / or that the weft threads of the partial webs of the multiaxial layer extend parallel or essentially parallel to one another. The basic requirement here is that the warp threads should extend in the longitudinal direction of the partial webs.

[0026] It is also possible for at least one multiaxial layer to be constructed in the same way as a fabric, in particular a single-layer flat fabric, knitted fabric, laid thread scrim, braid or extruded net, in which the partial webs forming the multiaxial layer are each constructed. Fiber fabrics of this type have a relatively open structure. Multiaxial layers of fabrics have been found to be particularly suitable.

[0027] A further embodiment of the conveyor belt according to the invention is characterized in that at least some of the warp threads, preferably all of the warp threads, are formed by monofilament and / or staple fiber yarns and / or twisted yarns, in particular made of monofilaments, and / or some of the weft threads, preferably all of the weft threads, are formed by monofilament and / or staple fiber yarns and / or twisted yarns, in particular made of monofilaments.

[0028] It may be provided that at least a portion of the warp threads, preferably all of the warp threads, consist of monofilaments and / or twisted monofilaments, and that a portion of the weft threads, preferably all of the weft threads consist of monofilaments and / or twisted monofilaments, the monofilament twisted threads being preferably formed from 4 or 6 or 9 monofilaments each having a diameter in the range of 0.15 mm to 0.25 mm, and / or the monofilaments preferably having a diameter in the range of 0.3 mm to 0.50 mm.

[0029] According to a further embodiment of the invention, it is provided that a part of the warp threads, preferably all of the warp threads, have a circular and / or rounded and / or rectangular cross section and / or are designed as flat threads.Similarly, it can be provided that a part of the weft threads, preferably all of the weft threads, have a circular and / or rounded and / or rectangular cross section and / or are designed as flat threads.

[0030] The warp and / or weft threads preferably consist of a polymeric material.

[0031] If the warp and / or weft threads are made from polyamide (PA) and / or polyester, in particular polyethylene terephthalate (PET) and / or polyethylene furanoate (PEF), the warp threads are preferably made from polyamide 6 (PA6) and / or consist of PET and / or PEF and the weft threads preferably consist of PA6 and / or PA6.10 and / or PA4.10 and / or PA11 and / or PET and / or PEF.

[0032] It is possible for the multiaxial layers of the carrier to be directly connected to one another, which are then preferably welded, glued or needled to one another.

[0033] However, a preferred embodiment is that the multiaxial layers are not directly connected to each other, but are only fixed to each other by the structural material, i.e. indirectly.

[0034] The carrier may have two multiaxial layers designed as endless loops.

[0035] In this case, the multiaxial layer is preferably obtained by spirally winding at least one partial web strip, the width of which is smaller than the width of the conveyor belt and the length of which exceeds the length of the conveyor belt.

[0036] The partial webs preferably have straight edges. However, they can have toothed or serpentine or wavy longitudinal edges. In both cases of straight and non-straight longitudinal edges, the partial webs can be in abutting contact with one another or can be arranged to overlap one another.

[0037] According to further exemplary embodiments, adjacent partial webs are connected to one another at their longitudinal edges, for example they can be sewn to one another and / or glued to one another and / or fused to one another and / or welded to one another.

[0038] The material of construction may include or consist of natural rubber. Alternatively, the construction material may comprise or consist of at least one synthetic elastomer, in particular a polyurethane elastomer and / or a polyurea elastomer and / or a silicone elastomer and / or a polyester elastomer.

[0039] It has proven particularly preferred when the structural material consists of a multi-component polyurethane casting resin system, which is in particular a polyether-polyurethane prepolymer based on methylene-diphenyl-diisocyanate (MDI) or toluene-diisocyanate (TDI) and / or a polytetramethylene ether glycol (PTMEG) polyol and / or an amine crosslinker and / or a plurality of amine crosslinkers and / or other polyvalent crosslinkers.

[0040] In order to provide the necessary support to the paper web, the structural material preferably has a hardness in the range of 80-99 Shore A and / or the paper contact surface (5) of the structural material (4) has a roughness Ra in the range of about 1.0 μm to 5.0 μm.

[0041] Furthermore, in order to increase the stability of the conveyor belt, especially on the machine side of the transport belt, it may be provided that reinforcements are embedded in the structural material. The reinforcements may be in the form of woven and / or knitted and / or braided and / or threaded scrims and / or extruded netting and / or fleeces.

[0042] According to the invention, it is provided that the construction material in the region of the paper-contact surface is smooth or has a texture for paper smoothing and / or paper embossing, and / or that the construction material in the region of the machine-contact surface has depressions, in particular grooves, and / or has blind holes. The paper-contact surface is thus in direct contact with the paper web and is adjusted to provide a smooth surface or the desired texturing / embossing. On the other hand, on the machine side, structures are provided to ensure an optimal static frictional contact between the machine-contact surface and the parts of the papermaking machine, in particular the rolls, in particular the structures used for receiving and draining liquids.

[0043] Finally, the invention relates to the use of a conveyor belt according to the invention in a machine in which a paper web guided through the paper machine comes into contact with the paper side of the conveyor belt, in particular in the press section of the paper machine.

[0044] Further features and advantages of the present invention will become apparent from the following description of an embodiment of a conveyor belt according to the invention, with reference to the accompanying drawings. [Brief description of the drawings]

[0045] [Figure 1] 1 is a schematic cross-sectional view of an exemplary embodiment of a conveyor belt according to the present invention; [Diagram 2] FIG. 2 is a schematic top view of the conveyor belt of FIG. 1. [Diagram 3] 1 is a schematic partial view of a multiaxial layer in the form of a fabric for a carrier of a conveyor belt according to the invention, the partial webs being connected by a laser welding device. [Figure 4] 1 is a schematic partial view of a multiaxial layer in the form of a fabric, the partial webs being connected by seams. [Diagram 5] FIG. 2 is a partial view of a further exemplary embodiment of a multiaxial layer in the form of a woven fabric. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0046] FIG. 1 shows a schematic view of a portion of a paper machine conveyor belt according to the invention in cross section, the upper side of which forms the paper side of the transfer belt and the lower side of which forms the machine side of the transfer belt.

[0047] The transport belt comprises a carrier 1, which is designed as a multiaxial carrier with two multiaxial layers 2, 3 arranged one above the other. The multiaxial layers 2, 3 are designed as endless loops, the loops of the machine-side multiaxial layer 3 being arranged within the loops of the paper-side multiaxial layer 2 and preferably correspondingly shorter in length.

[0048] The carrier 1 is completely embedded in a structural material 4 which forms on the upper side the paper contact surface 5 of the paper side and on the lower side the machine contact surface 6 of the transport belt of the machine side. The two multiaxial layers 2, 3 are connected to each other only by the structural material 4 and are not attached to each other in any other way, e.g. they are not directly needled and / or glued to each other.

[0049] The structural material 4 is comprised of an elastomer, here a multi-component polyurethane casting resin system having a methylene-diphenyl-diisocyanate (MDI) based polyether-polyurethane prepolymer, polytetramethylene ether glycol (PTMEG) polyol and an amine crosslinker. The structural material 4 has a hardness in the range of 80 to 99 Shore A.

[0050] The roughness Ra of the paper contact surface 5 formed by the structural material 4 is about 1.0 μm to 5.0 μm. It is smooth, but may also be textured to make the paper web smooth or to give the paper web a textured / embossed appearance.

[0051] On the other hand, the machine contact surface 6 is provided with a number of depressions 7, in this case grooves, which run perpendicular to the plane of the drawing, i.e. in the longitudinal direction of the transport belt. The depressions 7 serve to absorb liquids and / or impurities, so as to ensure an optimal static frictional contact between the machine contact surface 6 and the components, in particular the rolls of the paper machine.

[0052] The carrier 1 extends in a longitudinal or machine direction MD and a transverse direction CD extending transversely thereto. The multiaxial layers 2, 3 of the carrier 1 each have a respective orientation.

[0053] As can be seen particularly from Figure 2, each of the two multiaxial layers 2, 3 of the carrier 1 is composed of a number of partial webs 8 arranged one on top of the other when viewed in the cross direction CD. In Figure 2, the partial webs 8 of the product-side multiaxial layer 2 at the top of the figure are shown by solid lines, and the partial webs 8 of the machine-side multiaxial layer 3 immediately below them are shown by dashed lines.

[0054] Each partial web 8 comprises warp threads 9 extending in a partial web longitudinal direction TL and weft threads 10 extending in a partial web transverse direction TQ perpendicular to the partial web longitudinal direction TL. The warp threads 9 and the weft threads 10 are not shown in Fig. 2 but can be seen in the exemplary embodiment of Figs. 4-5.

[0055] FIG. 2 clearly shows that the partial web longitudinal direction TL of the partial webs 8 is inclined with respect to the longitudinal direction MD of the carrier 1 and thus of the multiaxial layers 2, 3 and forms an angle α, α' with the longitudinal direction MD. Correspondingly, the partial web cross direction TQ of the partial web 8 is inclined with respect to the cross direction CD of the multiaxial layers 2, 3 and forms angles β, β' with the cross direction CD. The angle α between the partial web longitudinal direction TL of the paper side multiaxial layer 2 and the longitudinal direction MD and the angle α' between the partial web longitudinal direction TL of the machine side multiaxial layer 3 and the longitudinal direction MD are quantitatively equal, but in the opposite direction to the angles α and α'. In the illustrated exemplary embodiment, the angles α and α' are each approximately 4°, but are exaggerated for the purposes of illustration. In a corresponding manner, the angles β and β' are also equal in magnitude, approximately 4°, but point in the opposite direction.

[0056] The two multiaxial layers 2, 3 are obtained by spirally winding at least one partial web strip B, the width of which is a fraction of the width of the transport belt and the length of which is several times the length of the transport belt.

[0057] 3 and 5 show adjacent portions of partial webs 8 laid adjacent to one another from a partial web strip B by being drawn off from a supply roll V, the partial webs 8 being constructed differently.

[0058] In the exemplary embodiment shown in Fig. 3, the partial web 8 formed from the partial web strips B is formed as a laid thread scrim with warp threads 9 extending in the partial web longitudinal direction TL and weft threads 10 extending in the partial web transverse direction TQ perpendicular to the partial web longitudinal direction TL. In the region of the longitudinal edges 11 where they face each other, the weft threads 10 have fringe-like projecting weft thread sections 12 which engage with each other so as to overlap offset in the longitudinal direction TL of the partial web. Connecting threads 13 are laid on these thread sections 12 and are fused to them. The connecting threads 13 are here formed by the warp threads 9. FIG. 3 shows a laser welding device 14 moving over the overlapping weft portions along connector yarn 13 to create a connection between connector yarn 13 and weft portion 12 .

[0059] In the exemplary embodiment shown in FIG. 4, the partial web 8, and therefore the multiaxial layers 2, 3 produced from the partial web 8, are designed as flat fabrics. The warp threads 9 and weft threads 10 are made from plastics such as polyamide, polyester, etc. The warp threads 9 and weft threads 10 can be made from monofilaments, twisted yarns, in particular twisted monofilament yarns, staple fiber yarns, etc.

[0060] Preferably, the warp threads 9 or warp yarns are made of monofilament yarns formed from 4, 6 or 9 monofilaments each having a diameter in the range of 0.15 mm to 0.25 mm, and the weft threads 10 or weft yarns are made of monofilaments having a diameter in the range of 0.30 mm to 0.50 mm. The warp threads 9 or warp yarns are made of PA6, PET or PEF, and the weft threads 10 or weft yarns are made of PA6, PA6.10, PA4.10, PA11, PET or PEF. In the exemplary embodiment shown in Figure 5, there is a weft twill 2-1 weave with pitch number 1.

[0061] In the region of the longitudinal edges 11, the partial webs 8 have protruding weft thread sections 12 that abut against one another. The length of the weft thread sections 12 is dimensioned such that the free distance between the warp threads 9 adjacent to the longitudinal edges 11 of the partial webs 8 is twice the free distance between the warp threads 9. A filling thread 15 is inserted between two mutually opposing warp threads 9 of the two partial webs 8, so that it is bounded at the top and bottom by the weft thread sections 12. The insertion of the filling thread 15 can be carried out in a device according to FIG. 3. The filling thread 15 has the same dimensions as the warp threads 9 and consists of the same material. Due to the aforementioned distance between adjacent warp threads 9, the filling thread fills the gaps such that the warp density remains unchanged also in the region of the longitudinal edges 11. When the filling thread 15 is fed in or immediately thereafter, the longitudinal edges 11 are connected to one another by two sewing threads 16.

[0062] In the exemplary embodiment shown in FIG. 5, the multiaxial layers 2, 3 are also designed as flat fabrics having a weave of the weft cross twill type 2-2, in particular divided by dividing the weft repeat.

[0063] According to the example of FIG. 4, all warp threads 9 are constructed of monofilament yarns consisting of four monofilaments with a diameter of 0.2 mm.

[0064] The weft thread 10 is designed as a monofilament and exists in two different cross-sectional shapes and two different thicknesses. In particular, the weft thread 10 consists of two different configurations 10a, 10b. The rounded weft threads 10a have a round cross section with a larger diameter, while the flat threads 10b are designed as flat threads with a rectangular cross section, the thickness of which is smaller than the diameter of the rounded weft threads 10a.

[0065] The rounded weft threads 10a and the flat threads 10b are arranged alternately in the longitudinal direction TL of the partial web. In the embodiment shown in Figure 5, the warp threads 9 or warp yarns are made of PA6, PET or PEF, and the weft threads 10 or weft yarns are made of PA6, PA6.10, PA4.10, PA11, PET or PEF.

[0066] In the purely schematic Figure 5 only a part of a single partial web 8 is shown and therefore the type of connection between adjacent partial webs 8 cannot be seen. Here the connection can be made in the same way as shown in Figure 3 or Figure 4. Thus, the partial webs 8 can be welded together in an overlapping manner or butt-sewn together. Alternatively or additionally, adjacent partial webs 8 can also be glued and / or fused together. [Explanation of symbols]

[0067] 1. Career 2 Multiaxial layer 3 Multiaxial layer 4 Structural materials 5 Paper contact surface 6 Mechanical contact surfaces 7. Depression 8 Partial Web 9. Warp 10 Weft 10a Rounded weft 10b flat thread 11 Longitudinal Edge 12 Thread part 13 Connecting Thread 14 Laser welding equipment 15 Filling yarn 16 Sewing Thread MD - Longitudinal or machine direction of the beam CD beam lateral direction TL Partial web longitudinal direction TQ Partial web cross direction W Roller V Supply Roll B Partial Web Strip

Claims

1. A conveyor belt for a paper machine having a paper side intended to support a paper web and a machine side facing away from said paper side, A carrier (1) and a water-impermeable structural material (4), said carrier (1) being partially or completely embedded in said water-impermeable structural material (4); The water-impermeable construction material (4) forms a paper contact surface (5) on the paper side and a machine contact surface (6) of the conveyor belt on the machine side; The carrier (1) is designed as a multi-axis carrier, The carrier (1) has at least two superimposed multiaxial layers (2, 3) extending in a longitudinal direction or machine direction (MD) of the carrier and in a transverse direction (CD) transverse thereto, The multiaxial layer in the cross direction (CD) is at least partially composed of a plurality of partial webs (8) arranged adjacent to each other, The partial web (8) includes warp yarns extending in a partial web longitudinal direction (TL) and weft yarns extending across the partial web in a partial web transverse direction (TQ), the partial web longitudinal direction (TL) of the partial web (8) is inclined with respect to the longitudinal direction (MD) of the carrier of each of the multiaxial layers (2, 3) and forms an angle (α, α') therewith, A conveyor belt, wherein the partial web cross direction (TQ) of the partial web (8) is inclined relative to the cross direction (CD) of each of the multiaxial layers (2, 3) and forms an angle (β, β') with the cross direction (CD).

2. 2. The conveyor belt according to claim 1, wherein the angle (α) that the partial web longitudinal direction (TL) of a multiaxial layer (2) makes with the longitudinal direction (MD) of the carrier of this multiaxial layer (2) and the angle (α') that the partial web longitudinal direction (TL) of a further multiaxial layer (3) makes with the longitudinal direction (MD) of the carrier of this further multiaxial layer (3) coincide in amount and / or have opposite senses.

3. The multiaxial layer (2, 3) includes a first multiaxial layer (2) and a second multiaxial layer (3), With respect to the first multiaxial layer (2), the angle (α) between the partial web longitudinal direction (TL) of the first multiaxial layer (2) and the longitudinal direction (MD) of the carrier of the first multiaxial layer is at least 0.6°; and / or With respect to the second multiaxial layer (3), the angle (α') between the partial web longitudinal direction (TL) of the second multiaxial layer (3) and the longitudinal direction (MD) of the carrier of the second multiaxial layer is at least 0.6°; 3. A conveyor belt according to claim 1 or 2, wherein:

4. The multiaxial layer (2, 3) includes a first multiaxial layer (2) and a second multiaxial layer (3), With respect to the first multiaxial layer (2), the warp threads (9) of the partial webs (8) of the first multiaxial layer (2) extend parallel to one another and / or the weft threads (10) of the partial webs (8) of the first multiaxial layer (2) extend parallel to one another, and / or With respect to the second multiaxial layer (3), the warp threads (9) of the partial webs (8) of the second multiaxial layer (3) extend parallel to one another and / or the weft threads (10) of the partial webs (8) of the second multiaxial layer (3) extend parallel to one another, 3. A conveyor belt according to claim 1 or 2, wherein:

5. 3. The conveyor belt according to claim 1 or 2, wherein for at least one multiaxial layer (2, 3), the partial webs (8) forming said multiaxial layer (2, 3) are formed in the same manner, respectively, as a woven fabric, as a knitted fabric, as a laid thread scrim, as a braid or as an extruded net.

6. at least a part of the warp threads (9) are formed by monofilament and / or staple fiber threads and / or twisted threads; and / or 3. A conveyor belt according to claim 1 or 2, wherein the weft threads (10) are partly formed by monofilament and / or staple fibre yarns and / or twisted yarns.

7. At least a portion of the warp yarns (9) is made of monofilaments and / or monofilament twisted yarns, A portion of the weft yarn (10) is made of monofilament and / or monofilament twisted yarn, 7. The conveyor belt of claim 6, wherein the monofilament strand is formed from 4, 6, or 9 monofilaments having a diameter in the range of 0.15 mm to 0.25 mm, and / or the monofilaments have a diameter in the range of 0.30 mm to 0.50 mm.

8. 3. A conveyor belt according to claim 1 or 2, wherein a portion of the warp threads (9) and / or a portion of the weft threads (10) have a circular and / or rounded and / or rectangular cross-section and / or are designed as flat threads.

9. Conveyor belt according to claim 1 or 2, wherein the warp threads (9) and / or the weft threads (10) are made of a polymer material.

10. The warp threads (9) and / or the weft threads (10) are made of polyamide (PA) and / or polyester, 10. A conveyor belt according to claim 9, wherein the warp threads (9) consist of Polyamide 6 (PA6) and / or PET and / or PEF and the weft threads (10) consist of PA6 and / or PA6.10 and / or PA4.10 and / or PA11 and / or PET and / or PEF.

11. 3. A conveyor belt according to claim 1 or 2, wherein the multiaxial layers (2, 3) of the carrier (1) are directly connected to each other.

12. 3. A conveyor belt according to claim 1 or 2, wherein the multiaxial layers (2, 3) of the carrier (1) are fixed relative to each other only by the structural material (4).

13. 3. A conveyor belt according to claim 1 or 2, wherein the carrier (1) has two multiaxial layers (2, 3) designed as endless loops.

14. 3. A conveyor belt according to claim 1 or 2, wherein the partial webs (8) have straight or toothed or serpentine or wavy longitudinal edges (11).

15. 3. A conveyor belt according to claim 1 or 2, wherein the partial web (8) has a width in the partial web cross direction (TQ) of at least 0.5 m.

16. Adjacent partial webs (8) are connected to one another at their longitudinal edges (11), 3. A conveyor belt according to claim 1 or 2, wherein adjacent longitudinal edges (11) of partial webs (8) are arranged in abutment or overlapping relation to one another.

17. 3. A conveyor belt according to claim 1 or 2, wherein the structural material (4) comprises or consists of natural rubber.

18. 3. A conveyor belt according to claim 1 or 2, wherein the structural material (4) comprises or consists of at least one elastomer.

19. 19. A conveyor belt according to claim 18, wherein the structural material (4) consists of a multi-component polyurethane casting resin system.

20. 3. A conveyor belt according to claim 1 or 2, wherein the construction material (4) has a hardness in the range of 80 to 99 Shore A and / or the paper contact surface (5) of the construction material (4) has a roughness Ra in the range of 1.0 μm to 5.0 μm.

21. the structural material (4) in the region of the paper-contact surface (5) is smooth or has a texture for paper smoothing and / or paper embossing; and / or 3. A conveyor belt according to claim 1 or 2, wherein the construction material in the region of the machine contact surface (6) has depressions (7) for facilitating drainage.

22. 3. A conveyor belt according to claim 1 or 2, wherein reinforcements are embedded in the structural material (4).

23. 23. A conveyor belt according to claim 22, in which the reinforcement is in the form of a woven and / or knitted and / or mesh and / or laid thread scrim and / or extruded netting and / or fleece.

24. 3. Use of the conveyor belt according to claim 1 or 2 in a papermaking machine, wherein a paper web fed through said papermaking machine is in contact with the paper side of said conveyor belt.

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