Multi-layer printing blanket for printing on moulded bodies

Abstract

The invention relates to a multi-layer printing blanket (10) for printing on molded bodies, comprising: i) a printing layer (12) with a printing surface (14) provided for applying a printed image to the molded body, wherein the printing layer (12) comprises one or more rubber materials, and ii) a textile layer (16) connected to the printing layer (12), wherein the textile layer (16) comprises a textile sheet, wherein the textile layer (16) exhibits an elongation in the range of 1 to 20% at a width of 5 cm under a load of 500 N, and wherein the multi-layer printing blanket (10) exhibits an indentation in the range of 120 to 325 µm in the compressibility test with a stamp acting on the printing surface (14) with a stamp area of ​​1 cm² at a test force of 141.8 N.

Description

[0001] The invention relates to a multi-layered printing blanket and a method for printing molded bodies with such a printing blanket. A printing device and the use of a corresponding printing blanket in the printing of molded bodies to reduce overlap errors of the printed image are also disclosed.

[0002] In numerous industries, particularly those manufacturing products for end consumers, it is crucial that the products have an appealing appearance and can be customized by the manufacturers. For this purpose, printing processes that allow substrates to be printed with a predefined image are of great importance in many sectors, for example, in the printing of beverage cans. A variety of different printing processes have become established for printing on substrates, such as offset printing and digital printing. These printing processes are generally familiar to experts. Many of these processes share the common feature that the final printing step onto the substrate is carried out by a printing cylinder onto which a printing blanket is mounted.

[0003] Suitable printing blankets serve to optimally print on the substrates and are generally known from the prior art, for example from EP 2361784 B1.

[0004] The properties of the printing blanket used have a significant influence on the printing properties and can particularly affect the printing quality.

[0005] When printing on cylindrical substrates, such as beverage cans, a particular challenge of the printing process lies in optimally distributing the printed image across the entire circumference. Ideally, the beginning and end of the printed image should slightly overlap. From a manufacturing perspective, insufficient overlap, where the substrate remains visible between the beginning and end of the printed image, is just as undesirable as excessive overlap. While excessive overlap ensures that the underlying substrate is not visible, it results in an aesthetically unappealing darkening of the printed image in the overlap area and / or renders covered parts of the image illegible.

[0006] In the field of technology, there is great interest in providing solutions that ensure optimal overlap areas of the printed image can be reliably set when printing on shaped objects such as beverage cans, aerosol cans, tubes and cups.

[0007] The primary objective of the present invention was to eliminate or at least reduce the disadvantages of the prior art.

[0008] In particular, the object of the present invention was to provide a solution with which an excessively wide or negative overlap of the printed image can be reliably prevented in the circumferential printing of rotationally symmetrical molded bodies, so that the reliable setting of an optimized overlap area becomes possible.

[0009] It was an objective of the present invention that the solution presented should require as few design modifications as possible to the devices used in the printing process. In this respect, it was desirable that the solution presented should enable optimization of the overlap area in a particularly time- and cost-efficient manner, without placing additional demands on the training of the personnel involved in the process.

[0010] A particular objective of the present invention was that the solution to be specified should be particularly suitable for printing on metallic substrates.

[0011] The inventors of the present invention have now found that the problems described above can surprisingly be solved if, in the multilayer printing blanket used for printing the molded bodies, a printing layer provided with a printing surface for applying the printed image to the molded body is combined with a textile layer, if the textile layer exhibits a specific elongation behavior and the multilayer printing blanket is adapted to a specific compressibility as defined in the claims.

[0012] Surprisingly, the use of such a multi-layered printing blanket allows for the reliable creation of a defined overlap zone for the printed image, without requiring any fundamental changes to the other printing equipment. Surprisingly, this multi-layered printing blanket is particularly suitable for the precise printing of metallic substrates, such as beverage cans.

[0013] It was found that the specific structure of the multilayer printing blanket is particularly suitable for applications where the multilayer blanket is not mechanically fixed to the printing cylinder, but rather applied using an adhesive. Based on this, particularly advantageous multilayer printing blankets can be obtained when they are factory-coated with an adhesive layer.

[0014] The aforementioned problems are thus solved by the subject matter of the invention as defined in the claims. Preferred embodiments of the invention are described in the dependent claims and the following descriptions.

[0015] Such embodiments, which are hereinafter referred to as preferred, are combined in particularly preferred embodiments with features of other embodiments referred to as preferred. Combinations of two or more of the embodiments referred to below as particularly preferred are therefore especially preferred. Also preferred are embodiments in which a feature of one embodiment referred to as preferred to any degree is combined with one or more further features of other embodiments, which are referred to as preferred to any degree. Features of preferred methods, uses, and printing devices result from the features of preferred multilayer printing blankets according to the invention.

[0016] Particularly preferred embodiments of the invention are disclosed in the exemplary embodiments. Particularly preferred embodiments of the invention have two or more, preferably three or more, and most preferably four or more, of the preferred features of the invention disclosed below, which are also implemented in the exemplary embodiments.

[0017] The invention relates to a multi-layered printing blanket for printing on molded bodies, comprising: i) a printing layer with a printing surface provided for the application of a printed image to the molded body, wherein the printing layer comprises one or more rubber materials, and ii) a textile layer connected to the printing layer, wherein the textile layer comprises a textile surface structure, wherein the textile layer, with a width of 5 cm, exhibits an elongation in the range of 1 to 20% under a load of 500 N, and wherein the multilayer printing blanket exhibits an indentation in the range of 120 to 325 µm in the compressibility test with a stamp acting on the printing surface with a stamp area of ​​1 cm² at a test force of 141.8 N.

[0018] The multilayer printing blanket according to the invention is suitable and intended for printing on shaped objects, and can advantageously be used in a wide range of known printing processes as well as for printing on a variety of shaped objects. A multilayer printing blanket according to the invention is preferred for essentially all embodiments, wherein the shaped objects are rotationally symmetrical, preferably beverage cans, aerosol cans, tubes, and cups. An exemplary multilayer printing blanket according to the invention is one in which the shaped objects are printed using offset printing, flexographic printing, or digital printing, preferably offset printing, in particular indirect offset printing.

[0019] Apart from the advantages in printing rotationally symmetrical shaped bodies, the multilayer printing blankets according to the invention can also be used advantageously in other areas, for example in the printing of newspapers, magazines and brochures.

[0020] In the inventors' experiments, the multilayer printing blanket according to the invention proved particularly suitable for printing on metallic molded bodies, especially those made of aluminum, with the advantages of precise adjustment of the overlap zone being particularly evident. A multilayer printing blanket according to the invention is preferred, wherein the molded bodies are metallic molded bodies, preferably made of aluminum. A multilayer printing blanket according to the invention is particularly preferred, wherein the molded bodies are aluminum cans.

[0021] Particularly in the embodiment as a self-adhesive, multi-layered printing blanket, as further disclosed below, excellent results were achieved, especially in cylindrical printing. A multi-layered printing blanket according to the invention is preferred, wherein the printing of the molded parts is carried out using cylindrical printing.

[0022] An essential component of the multilayer printing blankets according to the invention is, firstly, the printing layer. In accordance with what is expected in the skilled trades, this printing layer forms the outermost layer of the multilayer printing blanket and accordingly also includes the surface which is provided for the application of the printed image to the molded body and is therefore referred to as the printing surface within the scope of the present invention.

[0023] The printing layer comprises one or more rubber materials. Although, as will be explained below, it is conceivable to design the printing layer as a multi-layered printing layer, the inventors consider a preferred embodiment in which the printing layer consists predominantly of the rubber material. A multi-layered printing blanket according to the invention is preferred in this respect, wherein the printing layer consists of a mass fraction of 50% or more, preferably 70% or more, particularly preferably 90% or more, and most preferably 95% or more, of the rubber material, based on the mass of the printing layer. Additionally or alternatively, a multi-layered printing blanket according to the invention is preferred, wherein the printing layer comprises a rubber layer, wherein the rubber layer comprises or consists of the one or more rubber materials, and wherein the rubber layer is preferably a solid rubber layer.

[0024] The term "rubber material" is clear to those skilled in the art. It refers to a material obtained by crosslinking a crosslinkable rubber compound, for example, by vulcanization. The properties of rubber materials depend significantly on the type of rubber from which they are derived. The inventors have succeeded in identifying particularly suitable rubber systems for the rubber materials used in the pressure layer, with a blend of butadiene and butyl rubber being of particular importance in achieving especially advantageous performance characteristics.

[0025] A preferred material is a multi-layered printing blanket according to the invention, wherein one or more rubber materials are selected from the group consisting of rubber materials based on diene rubbers, preferably rubber materials based on ethylene propylene diene rubbers (EPDM), acrylonitrile butadiene rubber (NBR), butadiene rubber, butyl rubber (IIR) and mixtures comprising or consisting of these rubbers, in particular elastomer blends of butadiene rubber and butyl rubber (BR / IIR).

[0026] As explained above, the printing layer can be designed as a multi-layered printing layer, whereby the individual layers can, in principle, also be bonded to one another by friction, but a material-bonded connection is usually preferred. In multi-layered configurations of the printing layer, this can, in particular, comprise a surface top layer that protects the underlying rubber layers and by which the surface properties of the multi-layered printing blanket can be advantageously adapted to the respective requirements of the application, for example, with regard to surface texture or surface energy. Furthermore, it is conceivable to include conductive layers in the multi-layered printing layer, for example, made of a metallic material or a rubber compound with a high carbon black content, in order to influence the electrical properties, in particular the tendency to accumulate an electrostatic charge.A multi-layered printing blanket according to the invention is therefore preferred, wherein the printing layer is a multi-layered printing layer, wherein the layers of the multi-layered printing layer are preferably bonded to one another by material adhesion or force-locking, particularly preferably by material adhesion, and most preferably via adhesive layers. A multi-layered printing blanket according to the invention is also preferred, either additionally or alternatively, wherein the multi-layered printing layer comprises a cover layer arranged on the side facing away from the textile layer, the cover layer forming one of the outer layers of the multi-layered printing blanket. A multi-layered printing blanket according to the invention is again preferred, either additionally or alternatively, wherein the multi-layered printing layer comprises one or more conductive layers which have a lower specific electrical resistance at 23 °C than the other layers of the multi-layered printing layer.

[0027] A second important component of the multilayer printing blanket according to the invention is a textile layer which comprises or consists of a textile fabric. Although it would again be possible for the textile layer to be bonded to the printing layer by friction, the inventors consider it preferable for essentially all embodiments to provide a material-bonded connection with the printing layer. Therefore, a multilayer printing blanket according to the invention is preferred in which the textile layer is bonded to the printing layer by material bonding.

[0028] Even though it would theoretically be conceivable for the textile layer to comprise elements other than the textile fabric, the inventors consider it preferable for the textile layer to consist as largely as possible of the textile fabric. Accordingly, a multi-layered printing blanket according to the invention is preferred, wherein the textile layer consists of 80% or more by mass, preferably 90% or more, particularly preferably 95% or more, and most preferably 99% or more, and in particular substantially 100%, of the textile fabric, based on the mass of the textile layer.

[0029] The term "textile fabric" is clear to those skilled in the art and, as a general term, refers in principle to all two-dimensional textile products. However, in the inventors' experiments, woven and knitted fabrics, among the various textile fabrics under consideration, proved particularly suitable for achieving excellent results in printing processes when combined with specific printing layers. Against this background, a multi-layered printing blanket according to the invention is preferred, wherein the textile fabric is selected from the group consisting of woven and knitted fabrics, preferably woven fabrics.

[0030] A key advantage of the multilayer printing blankets according to the invention is their high degree of flexibility with regard to the materials used in the textile structure. The use of synthetic or semi-synthetic materials allows for particularly efficient optimization of handling properties and precise adjustment of material properties, especially elongation behavior. Conversely, the use of natural materials advantageously enables the creation of a particularly sustainable multilayer printing blanket and, in particular, reduces dependence on fossil raw materials.A multi-layered printing blanket according to the invention is therefore preferred, wherein the textile surface structure comprises one or more textile reinforcement elements made of a textile material, the textile material being selected from the group consisting of natural materials, semi-synthetic materials, synthetic materials, and mixtures of these materials. A multi-layered printing blanket according to the invention is particularly preferred, either additionally or alternatively, wherein the natural materials are selected from the group consisting of rock wool, cotton, flax, hemp, wool, and silk. A multi-layered printing blanket according to the invention is particularly preferred, either additionally or alternatively, wherein the semi-synthetic materials are selected from the group consisting of modal, viscose, and lyocell.Particularly preferred is, additionally or alternatively, a multi-layer printing blanket according to the invention, wherein the synthetic materials are selected from the group consisting of polyacrylonitrile, polypropylene, polyesters, polyamides, polyurethanes, polyphenylene sulfide, polyoxadiazole, aramids such as p-aramid, m-aramid or co-poly para aramid, polyimide, polyetherimide, polyetheretherketone, polyethylene 2,6-naphthalate, polyphenylene, polyphenylene oxide, polyphenylene sulfide, polyphenylene ether, polybenzoxazole and polyvinyl alcohol.

[0031] An important aspect of the present invention is that not just any textile layer is used, but that its elongation behavior is specifically tailored. This means that the textile layer, at a width of 5 cm and a predetermined load of 500 N, exhibits an elongation within a specific range. The inventors have succeeded in identifying particularly optimal elongation ranges, which yield especially advantageous results with regard to avoiding overlapping defects. A multi-layered printing blanket according to the invention is preferred, wherein the textile layer, at a width of 5 cm and under a load of 500 N, exhibits an elongation in the range of 1.3 to 17.5%, preferably in the range of 1.6 to 15.0%, particularly preferably in the range of 1.9 to 12.5%, and most preferably in the range of 2.2 to 10.0%.Preferably, or alternatively, a multi-layered printing blanket according to the invention is used, wherein the textile layer has an elongation of more than 1.4%, preferably more than 1.8%, and particularly preferably more than 2.2%, at a width of 5 cm under a load of 500 N.

[0032] In principle, it is conceivable that the multi-layered printing blanket consists solely of the printing layer and the textile layer. Such printing blankets are characterized in particular by a structural simplicity, which especially enables cost-efficient manufacturing. A multi-layered printing blanket according to the invention is preferred in this case, wherein the multi-layered printing blanket consists of the printing layer and the textile layer, and / or wherein the textile layer forms one of the outer layers of the multi-layered printing blanket.

[0033] For the vast majority of applications, however, the inventors believe it is preferable for the multilayer printing blanket to comprise additional layers besides the printing layer and the textile layer, as this allows the application properties of the multilayer printing blanket to be specifically tailored to the respective application requirements. In particular, the inventors propose that additional textile layers can be used, which may be integrated into the composite via intermediate layers.Although it would be conceivable in principle to use structurally different textile layers for the additional textile layers, the inventors consider it preferable for essentially all embodiments to design the additional textile layers as closely as possible to the textile layer described above, particularly with regard to the elongation behavior, the type of textile fabric, and / or the materials used, and especially preferably at least with regard to the elongation behavior. From a manufacturing perspective, it is particularly advantageous to produce the additional textile layers from the same material as the textile layer described above, so that two or more textile layers, preferably all textile layers, can be supplied, for example, from the same parent roll.A multi-layered printing blanket according to the invention is therefore preferred, wherein the multi-layered printing blanket comprises one or more, preferably two or more, additional textile layers, and / or wherein the multi-layered printing blanket comprises one or more intermediate layers.

[0034] An example of such an intermediate layer is made of a foamed or unfoamed rubber material, preferably a foamed rubber material with hollow inclusions, although other foams are also conceivable. The thickness of such an intermediate layer is preferably in the range of 0.2 to 1.5 mm, particularly preferably in the range of 0.3 to 1.2 mm.

[0035] According to the inventors, a particularly advantageous embodiment of a multilayer printing blanket with additional layers is achieved by incorporating an adhesive layer that includes or consists of an adhesive material. Such an adhesive layer, which may optionally be provided with a later removable cover layer for improved handling, allows the multilayer printing blankets according to the invention to be efficiently fixed to a printing cylinder. This has proven to be a particularly advantageous application of the multilayer printing blankets according to the invention, with which excellent results can be achieved, especially in adhesive bonding.A preferred option is a multi-layered printing blanket according to the invention, wherein the multi-layered printing blanket comprises an adhesive layer, wherein the adhesive layer comprises an adhesive material, wherein the adhesive layer forms one of the outer layers of the multi-layered printing blanket, wherein the adhesive layer is preferably bonded to the textile layer or an additional textile layer.

[0036] Another important parameter of the multilayer printing blankets according to the invention is that they must possess a specific compressibility. In the interaction of the layers of the printing blanket, in particular the printing layer and the textile layer, the multilayer printing blanket is designed such that its compressibility lies within the range defined above. The inventors have succeeded in identifying particularly favorable ranges for compressibility, with which excellent results are achieved with regard to avoiding overlapping errors during printing, especially on metallic substrates.A preferred feature is a multi-layered printing blanket according to the invention, wherein the multi-layered printing blanket exhibits an indentation in the range of 130 to 300 µm, preferably in the range of 140 to 275 µm, particularly preferably in the range of 150 to 250 µm, in a compressibility test with a stamp acting on the printing surface with a stamp area of ​​1 cm² at a test force of 141.8 N.

[0037] The compressibility is determined using an industry-established compressibility test in which a stamp with a stamping area of ​​1 cm² is applied perpendicularly to the printing surface with a predefined test force and the depth of the resulting indentation is determined.

[0038] The inventors have succeeded in identifying particularly suitable areas for the thickness of the multi-layer printing blanket. Specifically, a multi-layer printing blanket according to the invention is preferred, wherein the multi-layer printing blanket has an average thickness in the range of 0.5 to 5 mm, preferably in the range of 1.0 to 3.0 mm.

[0039] The inventors propose that, in addition to the textile layer, the entire multilayer printing blanket can be designed such that its total elongation lies within a specific range that yields advantageous results in printing processes. A multilayer printing blanket according to the invention is preferred, wherein, at a width of 5 cm and a load of 500 N, the multilayer printing blanket exhibits an elongation in the range of 0.5 to 25%, preferably in the range of 1.0 to 20.0%, particularly preferably in the range of 1.5 to 15%, and most preferably in the range of 2.0 to 10.0%.

[0040] Regarding further advantageous embodiments, the inventors consider it particularly beneficial if the printing surface and, consequently, the printing layer are optimized with respect to the material properties of the rubber material in such a way that they exhibit the lowest possible abrasion. This can be advantageously achieved by using the rubber materials disclosed above as preferred. Likewise, the inventors consider it particularly advantageous to design the printing layer in such a way that it can be macroscopically structured using an engraving laser. This requires that the printing layer exhibits sufficient absorption in the relevant wavelength range for electromagnetic radiation, for example, because the corresponding rubber materials are colored with suitable dyes, such as carbon black.

[0041] With regard to print quality, the inventors consider it particularly advantageous to design the printing surface with the lowest possible average roughness Rz, the correspondingly smooth surface advantageously contributing to the avoidance of overlapping errors. A multi-layered printing blanket according to the invention is therefore preferred, wherein the printing surface has an average roughness Rz according to DIN EN ISO 4287:1984 in the range of 2.0 to 20.0 µm, preferably in the range of 2.5 to 15.0 µm, and particularly preferably in the range of 3.0 to 10.0 µm.

[0042] The invention also relates to a method for printing on molded bodies, comprising the following process steps: a) Applying a printing blanket according to the invention to a printing cylinder to obtain a printing device, b) Producing or providing a plurality of molded bodies, and c) Printing the molded bodies using the printing device.

[0043] A preferred method according to the invention is wherein the multilayer printing blanket is bonded to the printing cylinder with an adhesive during application, preferably via an adhesive layer of the multilayer printing blanket.

[0044] A method according to the invention is also preferred, or alternatively, wherein the overlap zone of the printed image has a width in the range of 1.5 to 3.5 mm, preferably in the range of 2 to 3 mm.

[0045] Furthermore, a printing device comprising a multi-layered printing blanket according to the invention arranged on a printing cylinder is disclosed.

[0046] A printing device according to the invention is preferred, wherein the multi-layered printing blanket is bonded to the printing cylinder with an adhesive material, preferably via an adhesive layer of the multi-layered printing blanket.

[0047] Furthermore, the use of a multi-layer printing blanket according to the invention as a printing blanket in the printing of molded bodies to reduce overlap errors of the printed image is disclosed.

[0048] The invention and preferred embodiments of the invention are explained and described in more detail below with reference to the accompanying figure. The figure shows: Fig. 1 shows a schematic cross-sectional view through a multi-layer printing blanket according to the invention in a preferred embodiment.

[0049] Fig. 1Figure 1 shows a schematic cross-sectional view through a multilayer printing blanket 10 according to the invention in a preferred embodiment, wherein the cross-sectional profile of a real multilayer printing blanket 10 according to the invention is shown over a width of 40 cm, which is indicated on the x-axis, wherein the thickness profile is given as a percentage of the total thickness between the underside of the multilayer printing blanket 10 and the printing surface 14 on the y-axis, wherein the total thickness of the example shown is in the range of 1.72 to 1.76 mm.

[0050] The multi-layered printing blanket 10 of the Fig. 1The uppermost layer, which also forms the printing surface 14 intended for applying the printed image to the molded body, comprises a printing layer 12 consisting essentially entirely of a rubber material. In the example shown, the rubber material used is based on an elastomer blend of butadiene rubber and butyl rubber. The resulting printing surface 14 is optimized for minimal abrasion and is designed to be laser-engravable. In the example shown, the printing surface 14 has an average roughness depth Rz of 5 µm.

[0051] Below the pressure layer 12 is a textile layer 16, which in the example shown consists entirely of a woven polyester fabric. The textile layer 16 exhibits an elongation of 2.5% over a width of 5 cm under a load of 500 N.

[0052] The bottom layer of the multi-layered printing blanket 10 is, in the example shown, the Fig. 1 The structure is formed by an additional textile layer 20, which in the preferred embodiment shown is made of the same material as the textile layer 16. An intermediate layer 18 is arranged between the textile layer 16 and the additional textile layer 20. In the example shown, this intermediate layer comprises a porous, compressible elastomer, for example, based on acrylonitrile butadiene rubber (NBR) in various acrylonitrile proportions. Blends are also conceivable, for example, with natural rubber or EPDM. The intermediate layer serves to contribute to advantageous vibration damping and dynamics, and, by adjusting the advantageous compressibility, also to optimize the overlap.

[0053] To obtain a particularly preferred embodiment, the additional textile layer 20 on the underside of the multilayer printing blanket 10 can be provided with an adhesive layer in a fabric-bonded manner, via which it can be applied particularly easily to the printing cylinder of a printing device.

[0054] In particular, when using an adhesive attachment to the printing cylinder, the printing blankets 10 according to the invention are ideally suited for printing on shaped bodies in round body printing, for example aluminum cans, whereby an optimal and precise adjustment of the overlap area of ​​the printed image is made possible, especially for metallic substrates. Reference symbol list

[0055] 10 Multi-layer printing blanket 12 Printing layer 14 Printing surface 16 Textile layer 18 Intermediate layer 20 Additional textile layers

Claims

1. Multilayer printing blanket (10) for printing on molded bodies, comprising: i) a printing layer (12) with a printing surface (14) provided for applying a printed image to the molded body, wherein the printing layer (12) comprises one or more rubber materials, and ii) a textile layer (16) bonded to the printing layer (12), wherein the textile layer (16) comprises a textile sheet, wherein the textile layer (16) exhibits an elongation in the range of 1 to 20% at a width of 5 cm under a load of 500 N, and wherein the multilayer printing blanket (10) is subjected to a compressibility test with a stamp having a stamp area of ​​1 cm² acting on the printing surface (14). 2 exhibits an indentation in the range of 120 to 325 µm when subjected to a test force of 141.8 N.

2. Multilayer printing blanket (10) according to claim 1, wherein the multilayer printing blanket (10) is subjected to a compressibility test with a stamp having a stamp area of ​​1 cm acting on the printing surface (14). 2 exhibits an indentation in the range of 130 to 300 µm when subjected to a test force of 141.8 N.

3. Multi-layer printing blanket (10) according to one of claims 1 or 2, wherein the textile layer (16) has an elongation in the range of 1.3 to 17.5% at a width of 5 cm under a load of 500 N.

4. Multilayer printing blanket (10) according to one of claims 1 to 3, wherein the textile fabric is selected from the group consisting of woven and knitted fabrics.

5. Multilayer printing blanket (10) according to one of claims 1 to 4, wherein the printing surface has an average roughness depth R z according to DIN EN ISO 4287:1984 in the range of 2.0 to 20.0 µm.

6. Multilayer printing blanket (10) according to any one of claims 1 to 5, wherein the multilayer printing blanket (10) has a mean thickness in the range of 0.5 to 5 mm.

7. Multilayer printing blanket (10) according to any one of claims 1 to 6, wherein the multilayer printing blanket (10) comprises an adhesive layer, wherein the adhesive layer comprises an adhesive material, and wherein the adhesive layer forms one of the outer layers of the multilayer printing blanket.

8. Multilayer printing blanket (10) according to any one of claims 1 to 7, wherein the multilayer printing blanket (10) comprises one or more additional textile layers (20).

9. Method for printing on molded bodies, comprising the process steps of: a) applying a printing blanket (10) according to one of claims 1 to 8 to a printing cylinder to obtain a printing device, b) producing or providing a plurality of molded bodies, and c) printing on the molded bodies using the printing device.

10. Method according to claim 9, wherein the multilayer printing blanket (10) is bonded to the printing cylinder with an adhesive during application.

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