Arrangement for producing layer adhesion of at least two tissue layers by means of cold welding

Abstract

The invention relates to an arrangement (1) for producing layer adhesion of at least two tissue layers (2) by means of cold welding, wherein: the arrangement comprises two rollers (4) that form a stamping gap (3) for connecting the tissue layers (2); at least one of the rollers (4) has, on its roller surface (5) facing the stamping gap (3), a stamping plate (6) that is detachably fastened to the roller surface (5); and the stamping plate (6) has a stamping structure (7). The arrangement is characterised in that the stamping plate (6) is fastened to the roller (4) by means of a plurality of magnets (8) that are distributed over the roller surface (5) and are spaced apart from one another.

Description

[0001] Arrangement for producing a layer adhesion of at least two tissue layers by means of cold welding

[0002] The invention relates to an arrangement for producing a layer adhesion of at least two tissue layers by means of cold welding, wherein the arrangement has two rollers forming an embossing gap for connecting the tissue layers, wherein at least one of the rollers has, on its roller surface facing the embossing gap, at least one embossing plate detachably fastened to the roller surface, wherein the embossing plate has an embossed structure.

[0003] WO 2016 / 169574 Ai discloses an embossing plate for attachment to a cylinder of an embossing device. The embossing plate has a steel layer, a top and a bottom surface, and is suitable for embossing flat materials. The document discloses that the entire cylinder surface for attaching the embossing plates is magnetic. The device therefore has the disadvantage that a compromise must be made when using a suitable material for the cylinder surface, which, on the one hand, takes into account a cost-effective and durable cylinder material and, on the other hand, a material with good magnetic properties. Furthermore, if the cylinder is damaged, it must be completely replaced.

[0004] A sleeve-change calender is known from EP 1 967 360 A2. Its base body is a roll core that remains in a calender frame during a sleeve change, and onto which different sleeves can be clamped. The sleeves are designed as cylindrical hollow bodies that are pushed onto or removed from the roll core in the axial direction of the roll core. After being pushed onto the roll core, the sleeve is clamped by means of a clamping tool so that the sleeve is secured to the roll core in a rotationally secure manner. The disclosed arrangement has the advantage that the sleeves can be exchanged depending on the application, so that only different sleeves, rather than complete rolls, need to be kept in stock for different applications. However, no calender using an embossing plate is known from the prior art, which is both cost-effective to manufacture and has improved functional properties.

[0005] It is therefore the object of the invention to improve a sleeve-change calender in such a way that it can be adapted inexpensively and flexibly to different applications and at the same time requires little machine downtime.

[0006] The problem is solved by the features of the independent claims. Advantageous embodiments are described in the respective dependent claims.

[0007] Accordingly, it is provided that the embossing plate is fastened to the roller by means of a plurality of magnets distributed over the roller surface and arranged at a distance from one another.

[0008] The magnets can be removably accommodated in grooves distributed around the roller circumference and spaced apart from one another. The magnets or grooves can be designed so that they are flush with the roller surface.

[0009] Furthermore, it can be provided that the grooves and the magnets accommodated therein extend substantially in an axial direction of the roller. The grooves can each extend across the entire roller width. Accordingly, the magnets accommodated in the grooves can each extend across the entire roller width.

[0010] It is also conceivable for the grooves to be undercut and to open into the axial end faces of the roller body, allowing the magnets to be mounted and removed in the grooves in the axial direction of the roller. Alternatively, it is conceivable for the magnets to be inserted and removed in the grooves in a radial direction. In this case, the magnets can be glued and / or screwed into the grooves.

[0011] It can be provided that the magnets comprise a permanently magnetic material, for example iriodin or neodymium, by means of which the at least one embossing plate is fastened to the sleeve. Fastening the embossing plates to the sleeves by magnetism enables easy handling. Since the embossing plates also comprise a magnetic material, they can be fastened to the magnetic sleeve by magnetic interaction. This fastening without additional fastening means allows the embossing plate to be changed more quickly. Furthermore, no additional installation space needs to be provided for these fastening means. The roller core and / or the sleeve can be made of a suitable non-magnetic steel. This allows for an ideal combination of a highly magnetic material for the magnets and a cost-effective and durable material for the roller core and / or the sleeve to hold the magnets.

[0012] Furthermore, it can be provided that the at least one roller having the embossing plate has a roller core and a sleeve detachably fastened to the roller core and enclosing it, so that the roller surface is provided by the sleeve.

[0013] The sleeve can be frictionally connected to the roller core, in particular by shrinking the sleeve and / or extending or expanding the roller core. The embossing sheet can be attached to the sleeve by a plurality of magnets distributed over the surface of the sleeve and arranged at a distance from one another. The sleeve can have a material thickness of > 3 mm. The roller core can be formed from a metal material that is softer than the sleeve.

[0014] This reduces the machine downtime required for changing the embossing plates, as the old embossing plate can be removed, the new embossing plate can be installed, and the new embossing plate can be set up outside of the machine on a separate sleeve. This arrangement therefore has the advantage of allowing embossing plates to be changed outside of the calender or in parallel with a process running in the calender. In addition to preparing the sleeves outside of the machine, which allows the used embossing plate to be removed from a previous embossing process and the new embossing plate to be installed for a subsequent embossing process, as well as its setup, e.g.an alignment of the embossing plate on the sleeve and / or a concentricity test, the invention has the advantage over the prior art that only a small number of sleeves need to be kept in stock in order to produce a large number of different embossed structures in different embossing processes, since the different embossed structures can be realized by using different embossing plates. For example, two sleeves can be provided, one of which is located in the machine and the other is prepared outside the machine for the next embossing process. Three or more sleeves can also be provided, so that the third sleeve can also be prepared while the sleeve is being changed.At the same time, it's not necessary to replace and set up the embossing plates on the permanently installed roller, as the present invention allows for the replacement and setup of the embossing plates outside the machine, thus minimizing machine downtime. If necessary, the sleeve can also be loaded inside the machine.

[0015] The arrangement also has the advantage that it can be used cost-effectively and flexibly to create a layer bond between at least two tissue layers. The particular advantage is that the arrangement can be quickly and cost-effectively converted from the production of a first tissue embossed pattern to a different embossed pattern. Adequate layer bonding can be achieved by "cold welding" under high embossing pressure. Cold welding, which is primarily used for joining metallic workpieces, means that two or more layers of the same material are joined together at room temperature in such a way that they adhere to one another and, for example, at least approximate the state of being glued.

[0016] The patent protection is aimed at applications in the tissue sector, where it is about compression and thus the joining of the layers (handkerchief, napkin).

[0017] It is conceivable for the sleeve to have a base body facing the roll core, which is made of steel or a non-ferrous metal. The base body can therefore be made of a more conventional material than the sleeve outer surface, to which the embossing plate is attached. By using suitable materials for the base body, on the one hand, an optimal connection of the sleeve to the roll core can be achieved, and on the other hand, the sleeve can be manufactured more cost-effectively if only its outer surface is made of an expensive, complex material. The surface of the sleeve can have a plurality of contact edges and / or locating pins, by means of which the at least one embossing plate is aligned on the sleeve. The contact edges can form an insertion opening that tapers towards the sleeve surface, so that the embossing plate can be applied to the sleeve in a self-centering manner.The insertion opening can surround the embossing plate in a ring shape and at least in sections. The contact edges can extend substantially obliquely away from the sleeve surface, for example, at an angle of greater than 95 degrees relative to the sleeve surface. The roller surface can further have a grid of holes into which the locating pins can be inserted, matching the geometry of the embossing plate.

[0018] The contact edges can be designed as elevations and / or depressions in the sleeve.

[0019] Furthermore, the sleeve and / or the embossing plate can have at least one alignment mark for determining a correct alignment of the embossing plate on the sleeve.

[0020] The alignment mark can comprise an opening in the stamping plate and a mark on the sleeve that must be aligned with the opening. The opening and the mark can have the same characteristic shape, for example, a cross.

[0021] It can be provided that the embossing sheet comprises or consists of at least one of the following metals: steel, bimetal, nickel, copper.

[0022] Furthermore, it can be provided that the surface of the sleeve connected to the roll core has a concentricity of + / - 2 pm, preferably + / - 1.5 pm. It can also be provided that the embossing plate mounted on the sleeve also has a concentricity of + / - 2 pm, preferably + / - 1.5 pm. For example, it is conceivable that a sleeve not used in the process is equipped with an embossing plate in parallel and pre-aligned on a measuring roll core so that no or only minor calibration of the embossing plate is necessary when the sleeve is transferred into the arrangement. It can be provided that the sleeves are ground on production cores in a clamped state. It is conceivable that in order to fasten the sleeve to the roll core, the roll core is expandable in the radial direction so that the sleeve is clamped onto the roll core.

[0023] It is conceivable that the embossed structure of the embossing plate has embossed elevations, and that the embossing gap formed between the rollers is designed to produce a dot-to-dot embossing, an alternating embossing, or a dot-to-surface embossing. The surface of the opposing roller opposite the embossed elevations can be provided, for example, by the roller surface itself or by a counter element provided thereon, for example, a suitably configured embossing plate. At the beginning of the embossing process, the rollers can be aligned with one another so that the corresponding embossed structures, for example of the opposing embossing plates, are positioned opposite one another as intended.

[0024] The embossed elevations may include punctiform embossing dies and / or embossed lines. The embossed dies may have a substantially rectangular, square, round, oval, or polygonal surface. The embossed lines may, in particular, be significantly longer than their width. The embossed lines may be straight in sections and / or curved in sections, and / or may be arranged so as to intersect one another or each other.

[0025] The flanks of the embossed protrusions can be designed perpendicularly or obliquely to the roll surface, or concavely. This allows the embossed protrusions to have, for example, rectangular, square, or trapezoidal cross-sections. When the flanks are designed in a concave shape, they can slope downwards from the top of the embossed protrusions toward the sleeve surface with a constant radius or in a hyperbolic shape.

[0026] It can be provided that the roller opposite the embossing plate has an elastic surface. The elastic roller surface can be realized, for example, by a printing blanket attached to it. It can be provided that the combination of embossing plate elevations and the elastic counter-surface is designed to produce blind embossing using a "debossing" embossing technique. It is conceivable for the alternating embossing to have alternating point / area embossing, in which in adjacent embossing areas an anvil surface is arranged alternately opposite a plurality of pins. The anvil surface and the pins can each have a flat surface, wherein the surfaces are designed to roll against one another in the embossing gap to produce layer adhesion.The adjacent embossing areas can be spaced apart from each other, with spaces being provided between the embossing areas in which no contact occurs between the tissue layers and one of the roller surfaces. "Alternate" in the sense of the application means that each of the rollers involved has both sections with pins and sections with anvil surfaces, each of which is arranged opposite the complementary elements of the counter roller.

[0027] In the free spaces, the roller surfaces of both rollers can be set back from a common rolling plane. The recesses thus present on both roller surfaces can be aligned or offset from each other. Furthermore, the recesses can have different widths in the circumferential direction of the rollers.

[0028] Furthermore, it can be provided that both of the rollers each have a roller core and a sleeve detachably connected to the roller core, as well as at least one embossing plate detachably fastened to the sleeve, wherein the embossing plate has an embossed structure, wherein the embossing plates are aligned with one another in the roller gap to produce a desired embossing.

[0029] The invention further relates to a method for operating an arrangement according to one of the preceding claims, comprising the steps:

[0030] Carrying out a first embossing process with an arrangement according to one of the preceding claims;

[0031] Equipping at least one further sleeve located outside the arrangement with an embossing plate, wherein the equipping takes place at least partially parallel to the execution of the embossing process, and the equipping comprises the magnetic fastening of the embossing plate to the sleeve; replacing at least one sleeve used in the arrangement with the at least one further sleeve, wherein the replacement of the used sleeve comprises releasing a frictional connection between the sleeve and a roller core and creating a frictional connection between the roller core and the at least one further sleeve;

[0032] Carrying out a second embossing process with the arrangement having the at least one further sleeve.

[0033] The frictional connection can be created or released, for example, by expanding or contracting the roller core.

[0034] It can be provided that the first embossing process is carried out with an embossing sheet which has a first embossing structure and the second embossing process is carried out with an embossing sheet which has a second embossing structure.

[0035] Furthermore, it can be provided that the loading of the at least one further sleeve located outside the arrangement comprises the mounting and setting up of a second embossing plate on the sleeve.

[0036] Furthermore, the loading of the at least one further sleeve located outside the arrangement may further comprise the removal of a further stamping plate from the sleeve.

[0037] Furthermore, replacing the at least one sleeve used in the arrangement with the at least one further sleeve may comprise:

[0038] Disconnecting the connection between the sleeves used in the assembly and the roller core;

[0039] Removing the sleeve used in the assembly from the roll core;

[0040] Aligning the at least one further sleeve on the roll core; securing the at least one further sleeve on the roll core.

[0041] Further details of the invention are explained with reference to the following figures.

[0042] Fig. 1 shows an embodiment of a roller arrangement comprising two rollers each having a sleeve and an embossing plate;

[0043] Fig. 2 shows an embodiment of a roller arrangement having alternating embossing;

[0044] Fig. 3 is a detailed view of a roller arrangement having alternating embossing;

[0045] Fig. 4 shows an embodiment of a dot / smooth embossing

[0046] roller arrangement;

[0047] Fig. 5 shows an embodiment of a dot / dot embossed

[0048] roller arrangement;

[0049] Fig. 6 a) / b) Cross-sectional views of a roll with embossing plate and a roll with sleeve and embossing plate; and

[0050] Fig. 7a) / b) an embodiment of coordinated alignment marks on the roller surface and the embossing plate.

[0051] Fig. 1 shows an embodiment of a roller arrangement 1 comprising two rollers 4, each having a sleeve 11 and an embossing plate 6. The rollers 4 each have an expander roller core 10, onto which the sleeve 11 is frictionally clamped. The outer sides of the sleeves 11 each have a plurality of grooves 9, in each of which a magnet 8 is received. The grooves 9 and the magnets 8 received therein extend essentially in the axial direction X of the rollers 4 and are regularly spaced from one another in the tangential direction and distributed over the entire roller circumference. By means of the magnets 8, an embossing plate 6 is fastened to the roller surface 5. The rollers 4 of the arrangement 1 form a roller nip 3, to which a plurality of unconnected tissue layers 2 are fed on the input side in a conveying direction Y, which leave the roller nip 3 on the output side in an embossed layer composite 21.

[0052] Fig. 2 and Fig. 3 show an embodiment of the arrangement 1 which has an alternating embossing 15. In this arrangement, the embossing plates 6 have alternating embossing regions 17, in which one of the embossing plates 6 provides an anvil surface 18 and the other embossing plate 6 provides a plurality of pins 19 which are brought into contact with the anvil surface 18 in the embossing gap 3, so that the tissue layers 2 guided through the embossing gap are embossed between the pins 19 and the anvil surface 18. In the respectively adjacent embossing regions 17, the embossing arrangement is then provided in the opposite manner, so that the anvil surface 18 and the pins 19 are arranged on the respectively opposite embossing plates 6.This means that the embossing plate 6 of the upper roller 4 has, in an alternating arrangement, embossing areas 17 with anvil surfaces 18 and embossing areas 17 with pins 19, and the lower roller 4, in a manner complementary to the upper roller, also has, in an alternating arrangement, embossing areas 17 with anvil surfaces 18 and embossing areas 17 with pins 19. Between the embossing areas 17, free spaces 20 are provided in each case, in which neither anvil surfaces 18 nor pins 19 are arranged, so that no embossing of the tissue layers 2 takes place in these areas.

[0053] Fig. 4 shows an exemplary embodiment in which the roller arrangement 1 has a dot / surface embossing 16. The upper of the illustrated rollers 4 has an embossing plate 6 which has a smooth surface, and the lower of the illustrated rollers 4 has an embossing plate 6 which has a dot embossing with a plurality of embossing pins 19. Fig. 5 shows a further exemplary embodiment in which the roller arrangement 1 has a dot / dot embossing 14. The upper of the illustrated rollers 4 has an embossing plate 6 which has a dot embossing with a plurality of embossing pins 19, and the lower of the illustrated rollers 4 has an embossing plate 6 which has a dot embossing with a plurality of embossing pins 19. The rollers 4 are aligned to one another such that the embossing pins 19 roll on one another in the roller gap 3.

[0054] Fig. 6 shows two different embodiments of a roller 4. The roller 4 shown in Fig. 6 a) has a roller core 10, a sleeve 11 fastened thereon, and an embossing plate 6 fastened to the sleeve 11 by means of a plurality of magnets 8 arranged in a plurality of grooves 9. In contrast, the roller 4 shown in Fig. 6 b) has a roller core 10 and an embossing plate 6 mounted directly thereon, also fastened by means of a plurality of magnets 8 accommodated in a plurality of grooves 9. In the roller in Fig. 6 a), the roller surface 5 is provided by the sleeve 11, whereas in the roller shown in Fig. 6 b) it is provided by the roller core 10.

[0055] Fig. 7 shows how an embossing plate 6 can be aligned on a roll surface 5. Fig. 7 a) shows an example of a roll surface 5, provided either by a sleeve 11 or by the roll core 10, according to the explanations in Fig. 6. The roll surface 5 has two alignment marks 12, which are cross-shaped, for example, and can be realized, for example, by depressions, elevations, or by color coding. As Fig. 7 b shows, the embossing plate 6 has cross-shaped openings 22 corresponding to the alignment marks 12, which are positioned in alignment with the alignment marks 12 for aligning the embossing plate 6, so that the alignment marks 12 are fully visible through the openings 22, thereby ensuring that the embossing plate 6 is correctly positioned on the roll surface 5.

[0056] The features of the invention disclosed in the above description, in the drawings and in the claims may be essential for the realization of the invention both individually and in any combination.

[0057] List of reference symbols:

[0058] 1 arrangement

[0059] 2 tissue layers

[0060] 3 roller gap

[0061] 4 rollers

[0062] 5 Roller surface

[0063] 6 embossing sheet

[0064] 7 Embossed structure

[0065] 8 magnets

[0066] 9 grooves io roller core ii sleeve

[0067] 12 Alignment mark

[0068] 13 minting surveys

[0069] 14 point / dot embossing

[0070] 15 Exchange minting

[0071] 16 point / area embossing

[0072] 17 Embossing area

[0073] 18 anvil surface

[0074] 19 pins

[0075] 20 free space

[0076] 21 layer composite

[0077] 22 Opening

[0078] X axial direction

[0079] Y conveying direction

Claims

Claims: Arrangement (1) for producing layer adhesion of at least two tissue layers (2) by means of cold welding, wherein the arrangement has two embossing gaps (3) has rollers (4) forming the tissue layers (2) for joining, wherein at least one of the rollers (4) has an embossing plate (6) on its roller surface (5) facing the embossing gap (3), the embossing plate (6) being detachably attached to the roller surface (5), the embossing plate (6) having an embossing structure (7), characterized in that the embossing plate (6) is attached to the roller (4) by means of a plurality of magnets (8) distributed over the roller surface (5) and spaced apart from one another. Arrangement (1) according to claim 1, wherein the magnets (8) are detachably received in grooves (9) distributed over the circumference of the roller and spaced apart from one another. Arrangement (1) according to claim 2, wherein the grooves (9) and the magnets (8) received therein extend substantially in an axial direction (X) of the roller (4).Arrangement (1) according to one of claims 2 or 3, wherein the grooves (9) are undercut and open into axial end faces (10) of the roller body, so that the magnets (8) are in the axial direction (X) of the roller. (4) can be mounted or dismounted in the grooves (9). Arrangement according to claim 1, wherein the magnets (8) comprise a permanent magnetic material, for example iridescent or neodymium, by means of which the at least one embossing plate (6) is attached to the roller surface (5). Arrangement (1) according to one of the preceding claims, wherein the at least one roller (4) comprising the embossing plate (6) has a roller core (10) and a sleeve detachably attached to and enclosing the roller core (10). (11) such that the roller surface (5) is provided by the sleeve (11). - Arrangement (1) according to claim 6, in which the sleeve (n) is frictionally connected to the roller core (10), in particular by shrinking the sleeve and / or expanding the roller core, and the stamping plate (6) is attached to the sleeve (4) by the plurality of magnets (8) distributed over the surface (5) of the sleeve (11) and spaced apart from one another. . Arrangement (1) according to claim 6 or 7, in which the sleeve (11) has a material thickness of > 3 mm. . Arrangement (1) according to any one of claims 6 to 8, wherein the sleeve (11) has a base body facing the roller core (10), which is made of steel or a non-ferrous metal.

0. Arrangement (1) according to one of claims 6 or 7, wherein the surface of the sleeve (11) has a plurality of contact edges and / or locating pins by means of which the at least one stamping plate (6) is aligned on the sleeve (11). 1.Arrangement (1) according to claim 10, wherein the contact edges are formed as protrusions and / or depressions in the sleeve, which at least partially define an outer contour of the stamping plate on the sleeve circumference.

2. Arrangement (1) according to claim 11, wherein the contact edges have obtuse-angled chamfers with respect to the sleeve surface, by which the boundary provided by the contact edges tapers in the direction of the sleeve (11), so that the stamping plate (6) can be mounted on the sleeve (11) in a self-centering manner.

3. Arrangement (1) according to any one of the preceding claims, wherein the sleeve (11) and / or the stamping plate (6) has at least one alignment mark (12) for determining a correct alignment of the stamping plate (6) on the sleeve (11). - Arrangement according to claim 13, wherein the alignment mark (12) has, on the one hand, an opening (22) in the stamping plate (6) and, on the other hand, a marking (12) on the sleeve (11) that is to be aligned with the opening (22), wherein the opening (22) and the marking (12) have the same characteristic shape, for example, cross-shaped. . Arrangement (1) according to any one of the preceding claims, wherein the stamping plate (6) has or consists of at least one of the following metals: steel, bimetal, nickel, copper. . Arrangement (1) according to any one of the preceding claims, wherein the surface of the sleeve (11) connected to the roller core (10) has a concentricity of + / - 2 pm, preferably + / - 1.5 pm. .Arrangement (1) according to any one of the preceding claims, wherein the embossing structure (7) of the embossing plate (6) has embossing projections (13) and the embossing gap (3) formed between the rollers (4) is configured to produce a dot / dot embossing (14), an alternating embossing (15), or a dot / area embossing (16). Arrangement (1) according to claim 17, wherein the embossing projections (13) have point-like embossing dies and / or embossing lines and / or other geometric embossing shapes. Arrangement (1) according to claim 17 or 18, wherein the flanks of the embossing projections (13) are each perpendicular or oblique to the roller surface (5) or concave. Arrangement (1) according to any one of the preceding claims, wherein the roller (4) opposite the embossing plate (6) has an elastic surface.Arrangement (1) according to one of claims 17 to 20, wherein the alternating embossing (15) has an alternating point / surface embossing in which an anvil surface (18) is arranged opposite a plurality of pins (19) in adjacent embossing areas (17). Arrangement (i) according to claim 21, wherein the anvil surface (18) and the pins (19) each have a flat surface, the surfaces being designed to roll against each other in the embossing gap (3) to create layer adhesion. Arrangement (1) according to claim 16 or 17, wherein the adjacent embossing areas are spaced apart from each other, with clearances (20) provided between the embossing areas (17) in which no contact occurs between the tissue layers (2) and either of the roller surfaces (5). Arrangement (1) according to claim 23, wherein the roller surfaces of both rollers are set back in the clearances (20) relative to a common rolling plane.An arrangement (1) according to any one of the preceding claims, wherein both of the rollers (4) each have a roller core (10) and a sleeve (11) detachably connected to the roller core (10), and at least one embossing plate (6) detachably attached to the sleeve (11), wherein the embossing plate (6) has an embossing structure (7), and wherein the embossing plates (6) are aligned with each other to produce a desired embossing in the roller gap (3). A method for operating an arrangement according to any one of the preceding claims, comprising the steps: Performing a first embossing process with an arrangement (1) according to one of the preceding claims; Mounting at least one further sleeve (11) located outside the arrangement with an embossing plate (6), wherein the mounting is carried out at least sectionally parallel to the execution of the embossing process and the mounting includes the magnetic attachment of the embossing plate (6) to the sleeve (11); Replacing at least one sleeve (11) used in the arrangement (1) with at least one further sleeve (11), wherein the replacement of the used Sleeves (11) comprise the breaking of a frictional connection between the sleeve (n) and a roller core (10) and the creation of a frictional connection between the roller core (10) and at least one further sleeve (n); Performing a second embossing process with the arrangement (i) comprising at least one further sleeve (11). A method according to claim 26, wherein the frictional connection is created or released by expanding or contracting the roller core (10). A method according to claim 26 or 27, wherein the first embossing process is performed with an embossing plate (6) having a first embossing structure (7), and wherein the second embossing process is performed with an embossing plate (6) having a second embossing structure (7). A method according to any one of claims 26 to 28, wherein loading the at least one further sleeve (11) located outside the arrangement (1) comprises mounting and aligning a second embossing plate (6) on the sleeve (11).A method according to claim 29, wherein loading the at least one further sleeve (11) located outside the arrangement (1) further comprises removing a further embossing plate (6) from the sleeve (11). A method according to any one of claims 26 to 30, wherein replacing the at least one sleeve (11) used in the arrangement (1) with the at least one further sleeve (11) comprises: Disconnecting the connection between the sleeves (11) used in the arrangement (1) and the roller core (10); Removing the sleeve (11) used in the arrangement (1) from the roller core (10); Aligning at least one further sleeve (11) on the roller core (10); Attaching at least one further sleeve (11) to the roller core (10).

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