Embossed packaging material for twist packs and method for the production thereof
Patent Information
- Authority / Receiving Office
- EP · EP
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2024-04-23
- Publication Date
- 2026-03-04
AI Technical Summary
Wax-coated papers used in twist packaging are problematic due to petroleum contamination and hinder recycling, as the wax coating makes the paper waterproof, preventing fiber dissolution and limiting recycling to thermal processes, and is viewed negatively by the EU Commission.
A wax-free, cellulose-based packaging material with an embossed structure that allows for flexibility and twisting without cracking, achieved by structuring the base layer to reduce modulus of elasticity and increase elongation, enabling 180° rotation without damage.
The solution provides a flexible, crack-free twist packaging that is suitable for food products, maintains dimensional stability, and is recyclable, avoiding the environmental concerns associated with wax coatings.
Smart Images
Figure EP2024061025_31102024_PF_FP_ABST
Abstract
Description
[0001] Embossed packaging material for twist wraps and process for its manufacture
[0002] Description
[0003] The present invention relates to a packaging material, particularly for packaging food. In particular, the invention relates to so-called twist wraps, which are used, for example, to package sweets or the like.
[0004] The use of paper for such packaging purposes is known from the prior art. Wax-coated paper is typically used to make it more flexible. In other words, these papers typically have wax coatings. The wax makes the paper more flexible, allowing it to conform better to the contours of the product and prevent tearing. Wax typically comes from oil derivatives and is therefore a source of mineral oil contamination. Furthermore, the use of wax is viewed critically with regard to the recycling process. The wax coating seals the surfaces to make them watertight, preventing water from dissolving the fibers during the recycling process. This, in turn, means that wax-coated paper can often only be recycled thermally.In addition, recent discussions within the EU Commission have shown that wax coatings on paper should be listed as negative in terms of the recycling cycle.
[0005] The present invention is therefore based on the object of providing a paper-based and / or cellulose-containing, twistable packaging material which in particular dispenses with the use of wax components.
[0006] This object is achieved according to the invention by the subject matter of the independent patent claims. Advantageous embodiments and further developments are the subject matter of the dependent claims.
[0007] The invention relates to a cellulose-based packaging material or packaging film for packaging foodstuffs, in particular as twist packaging, wherein this packaging material has a base layer which extends in a longitudinal direction, a width direction perpendicular to the longitudinal direction and a thickness direction perpendicular to the longitudinal direction and the width direction, and wherein the base layer has a first surface which extends in the longitudinal direction and the width direction, and a second surface which extends in the longitudinal direction and the width direction and which is opposite the first surface, and wherein the base layer is made of paper and / or cellulose-containing material.
[0008] According to the invention, the base layer has at least in sections a structure and / or embossing such that a first section of the base layer can be rotated by at least 180° relative to a second section of the base layer with respect to at least one axis of rotation in order to form the twist packaging and preferably to form it in a crack-free manner.
[0009] It should be noted that in this description the terms packaging material and packaging film are used synonymously.
[0010] Therefore, within the scope of the invention, it is proposed, in particular, to dispense with a wax coating and to achieve the necessary softness or flexibility of the material through the aforementioned structures. This aforementioned structure provides a certain degree of flexibility, which enables twisting. Twisting refers to the fact that a first section of the base layer can be rotated relative to a second section of the base layer by at least 180° with respect to at least one rotation axis, in order to form the twist packaging without damage.
[0011] Twist packaging is packaging in which one section of the packaging material is twisted and / or twisted or twisted relative to another section of the packaging material.
[0012] Preferably, the extension of the packaging material or twist wrap in the thickness direction is significantly smaller than the extension in the longitudinal direction and / or the width direction. Preferably, the extension of the packaging material in the thickness direction is less than 5% of the extension in the width direction, preferably less than 3%, preferably less than 1%, and preferably less than 0.5%.
[0013] Preferably, the base layer and / or the material of the base layer has a (particularly maximum) grammage which is between 15 - 70 g / m 2 and particularly preferably between 30 - 50 g / m 2 In a further preferred embodiment, the base layer and / or the material of the base layer has a long fiber content of 50-100%, preferably 70-100%. In a further preferred embodiment, the base layer and / or the material of the base layer has a filler content of 0-30%.
[0014] In a preferred embodiment, the packaging material and / or the base layer has a longitudinal extension that is greater than 1 cm, preferably greater than 2 cm, preferably greater than 3 cm. In a further embodiment, the packaging material and / or the base layer has a longitudinal extension that is less than 30 cm, preferably less than 25 cm, preferably less than 20 cm, preferably less than 15 cm, and preferably less than 10 cm.
[0015] In a further preferred embodiment, the packaging material and / or the base layer has an extension in the width direction which is greater than 2 cm, preferably greater than 3 cm, preferably greater than 4 cm.
[0016] In a further advantageous embodiment, the packaging material has an extension in the width direction which is less than 40 cm, preferably less than 35 cm, preferably less than 30 cm, preferably less than 25 cm, preferably less than 20 cm and particularly preferably less than 15 cm.
[0017] In a further preferred embodiment, the packaging material has an extension in the thickness direction that is greater than 15 pm, preferably greater than 20 pm, particularly preferably greater than 25 pm, and especially preferably greater than 30 pm. This information refers in particular to the already embossed paper and / or the already embossed base layer.
[0018] Particularly preferably, the packaging material has an extension in the thickness direction that is less than 120 pm, preferably less than 100 pm, and particularly preferably less than 80 pm. These extensions are measured in particular according to DIN EN ISO 534.
[0019] In a further advantageous embodiment, the packaging material has at least one material-inherent property whose value differs in MD (machine direction) from that in TD (transverse direction). Preferably, at least one of these material-inherent properties, which differ in MD and TD, is selected from a group comprising a modulus of elasticity, an elongation at break, and a flexural rigidity. This can, for example, ensure that the packaging material is easily deformable (twistable) in one direction, but remains comparatively stiff and dimensionally stable in another direction. It can also be achieved that a product to be packaged (for example a food product) can be twisted into the packaging material without great effort or mechanical expenditure, while at the same time ensuring that the packaging material does not break or tear when the packaged product is removed.
[0020] In a further advantageous embodiment, the packaging material has a modulus of elasticity in MD (machine direction) between 3000 MPa and 10,000 MPa, preferably between 4000 MPa and 6000 MPa, and in TD (transverse direction) between 1000 MPa and 6000 MPa, preferably between 1500 MPa and 3000 MPa. The modulus of elasticity is therefore preferably reduced by embossing. The modulus of elasticity in MD and / or TD is preferably reduced by at least 20%, preferably by at least 40%, preferably by at least 70%, and preferably by 90% compared to an unembossed version. In a preferred embodiment, the modulus of elasticity is reduced by a maximum of 90%.
[0021] The values were determined analogously to DIN EN ISO 1924-2.
[0022] In a further advantageous embodiment, the packaging material has a breaking load elongation in MD between 1.5% and 3.0%, preferably between 1.8% and 2.2%, and in TD between 6.0% and 9.0%, preferably between 6.5% and 8.0%. The breaking load elongation is therefore preferably increased by the embossing. The breaking load elongation in MD and / or TD is preferably increased by at least 10%, preferably by at least 20%, and preferably by at least 30% compared to an unembossed version.
[0023] The values were determined analogously to DIN EN ISO 1924-2.
[0024] In a further preferred embodiment, the packaging material has a flexural rigidity in MD between 2.0 mN and 6.0 mN, preferably between 2 mN and 4 mN, and in TD between 5.0 mN and 13.0 mN. Compared to an unembossed version, the flexural rigidity is preferably reduced in MD by at least 60%, preferably by at least 50%, and preferably by at least 40%, and increased in TD by at least 50%, preferably by at least 70%, and preferably by at least 90%. The values were determined analogously to DIN EN ISO 2493-1.
[0025] Preferably, in a said direction, a rotation (of one section of the packaging material relative to another section of the packaging material) of at least 180° is possible without the packaging material tearing. Particularly preferably, a rotation of at least 360°, preferably of at least 540° and particularly preferably of at least 720° is possible.
[0026] In particular, “crack-free” means that the packaging material, after the twisting process, has no visible damage, particularly to the surface, which can be seen with the naked eye. Surprisingly, the applicant was unable to detect any visible damage to the surface of a packaging material produced with the above-mentioned values, despite the mechanical stress on the packaging material during the twisting process. Although small fiber cracks may occur in the base layer, these do not have a negative impact on the twisting process and do not lead to any visible damage to the surface in the form of cracks, holes, etc. These fiber cracks also do not affect the visual appearance of the packaging. In particular, “crack-free” also means that there are marginal, visible changes to the surface of the base material, for example in the form of microcracks, holes, etc.up to a maximum size of 1 mm are acceptable. This allows one area of the packaging material to be rotated relative to another by up to two or even several turns. This axis of rotation particularly preferably runs transversely to the machine direction (TD). However, a run in other directions, particularly along the machine direction, would also be possible.
[0027] In another preferred embodiment, the packaging material is flexible. In a preferred embodiment, the structure and / or embossing is uniformly distributed over the entire surface. However, it would also be possible to provide embossing only in the areas where rotation or twisting is to occur.
[0028] In a further preferred embodiment, the structure is manufactured using at least one embossing cylinder.
[0029] In a preferred embodiment, the packaging material is wax-free.
[0030] Particularly preferably, the structure has a plurality of lines which preferably run parallel to one another.
[0031] Particularly preferably, the structure has an embossed pattern which is selected from a group of embossed patterns which includes worm embossing, linen embossing, line embossing, wave embossing, grid embossing, dot embossing, needle embossing, damask embossing, image embossing, lettering embossing, Breille embossing or combinations thereof.
[0032] This embossing can preferably spatially deform the material to increase its elasticity. The material is preferably modified in a relief-like manner. The lines can be straight or curved, for example, serpentine. Furthermore, it is also possible for a first group of lines to run in a first direction and a second group of lines to run in a second direction. These directions can be slanted or perpendicular to each other.
[0033] Furthermore, it is possible for some of the lines to run in the longitudinal direction and some of the lines to run in a width direction. In a further preferred embodiment, the embossing has an embossing depth that is greater than 5 pm, preferably > 7 pm, preferably > 30, preferably > 40 pm and particularly preferably > 50 pm, and < 100 pm, preferably < 90 pm, preferably < 70 pm, preferably < 50 pm and particularly preferably < 25 pm. For example, the embossing depth could be between 5 and 100 pm, or between 50 pm and 90 pm, or between 40 and 70 pm, or between 30 pm and 50 pm, wherein it is particularly preferred that the embossing depth is between 7 and 25 pm.
[0034] The embossing can protrude in one direction of the material or in both directions. The embossing can thus protrude in the thickness direction beyond both the first surface (2a) and the second surface (2b), but preferably protrudes beyond both surfaces. In this context, a surface is understood to mean a flat surface formed by the non-embossed areas of the base layer.
[0035] The embossing can be used / applied as steel / steel embossing, steel / rubber (PU), steel / paper, for example.
[0036] In a further advantageous embodiment, a print and / or a finishing process is applied to at least one surface, preferably to the first surface. Any method known from the prior art can be used as the printing process, preferably gravure printing, flexographic printing, or digital printing. Within the scope of the invention, finishing is understood to mean anything that is visually or haptically perceptible to the consumer. In particular, the finishing process involves an overprint varnish or gloss varnish.
[0037] In a further advantageous embodiment, a sealing medium is arranged on the outer surface opposite the print.
[0038] The sealing medium is preferably a heat-sealing lacquer and / or a cold-sealing coating. This sealing coating can be activated thermally or by pressure.
[0039] As mentioned above, the invention therefore proposes a method and composition for making paper twistable, particularly with modern machines, without the use of wax. To soften the paper and protect it from tearing, embossing or structuring the paper is proposed, as mentioned above. This embossing results in elasticity and flexibility in the paper, making it ideal for twist applications. This has already been confirmed in extensive experiments. A machine test showed excellent results, even on high-speed twist machines.
[0040] In a further preferred embodiment, a barrier layer is preferably arranged on the first surface. This barrier layer preferably contains at least one substance selected from a group consisting of a metal, a semimetal, a metal oxide, a semimetal oxide, aluminum, copper, titanium, gold, silver, aluminum oxide (AlOx), silicon oxide (SiOx), or mixtures thereof.
[0041] In a further preferred embodiment, the base layer comprises at least one, preferably two, further layers in the form of primers. These are preferably a pre-metallization primer, i.e., a primer applied beneath the metallization or barrier layer, and a post-metallization primer, i.e., a primer applied above the metallization or barrier layer. In a preferred embodiment, a barrier lacquer layer, in particular an oxygen barrier lacquer layer, is formed as the metallization primer.
[0042] This barrier layer can preferably provide the packaging material with barrier properties, particularly but not exclusively, against oxygen, water (vapour), aroma and / or fat.
[0043] This barrier layer can be applied.
[0044] However, it is also possible that such an inorganic coating is used to make the product more visually appealing.
[0045] In a further preferred embodiment, the second surface preferably comprises a barrier coating in addition to or as an alternative to the barrier layer. In a preferred embodiment, the base layer on the second surface comprises a coating to prevent the contents from subsequently sticking to the packaging material and / or the base layer. In a preferred embodiment, this base layer is based on acrylate and / or ionomers and / or blends of these materials.
[0046] In a preferred embodiment, the base layer already comprises barrier properties such as, but not exclusively, against fat.
[0047] In a further preferred embodiment, a coating is applied to the carrier material. This coating is particularly preferably applied over the entire surface.
[0048] More preferably, the coating is selected from a group of coatings which includes sticky-release coatings, grease barriers and the like.
[0049] In a preferred embodiment, the base layer has a grammage greater than 10g / m 2 preferably larger than 15g / m 2 , preferably larger than 20g / m 2 preferably larger than 25g / m 2 , preferably larger than 30g / m 2 .
[0050] In a preferred embodiment, the base layer has a grammage that is less than 100g / m 2 , preferably less than 80g / m 2 , preferably less than 60g / m 2 preferably less than 50g / m 2 , and preferably less than 40g / m 2 .
[0051] In a preferred embodiment, the base layer has a grammage of approximately 35g / m 2 on.
[0052] The packaging film preferably comprises an overprint varnish. This is particularly preferably an NC-based overprint varnish. The overprint varnish preferably has a basis weight and / or grammage greater than 0.3 g / m 2 preferably greater than 0.4g / m 2 , preferably greater than 0.5g / m 2 preferably greater than 0.6g / m 2 , and preferably greater than 0.7g / m 2 .
[0053] In a preferred embodiment, the overprint varnish has a basis weight and / or grammage that is less than 2.0 g / m 2 , preferably less than 1.5g / m 2 , preferably less than 1 .0g / m 2 , preferably less than 0.9g / m 2 , and preferably less than 0.8g / m 2In another preferred embodiment, the packaging film has a printing ink. This is preferably an NC printing ink.
[0054] Preferably, this printing ink has a basis weight and / or a dry grammage that is greater than 0.5g / m 2 preferably greater than 0.7g / m 2 , preferably greater than 1 .0g / m 2 preferably greater than 1.3g / m 2 , and preferably greater than 1 .7g / m 2 .
[0055] In a preferred embodiment, this printing ink has a basis weight and / or a dry grammage that is less than 10.0 g / m 2 preferably less than 16g / m 2 , preferably less than 4.0g / m 2 preferably less than 3.0g / m 2 , and preferably less than 2.5g / m 2
[0056] Preferably, the embossing of the packaging film takes place in a single (especially separate) operation. Embossing is particularly preferably carried out using an embossing calender.
[0057] The present invention is further directed to a food product which is packaged with a packaging film and / or a packaging material of the type described above.
[0058] In this case, a first edge section of the packaging film or the packaging material is preferably rotated relative to a further section and in particular a central section in a first twisting section and preferably a second edge section of the packaging film and / or the packaging material is rotated relative to the central section in a second twisting section.
[0059] However, it would also be conceivable that the packaging only has such a twisting section
[0060] Preferably, a receiving volume for the food product is formed between the first twisting section and the second twisting section. The food product can be, for example, solid products such as sweets, candies, and the like. The present invention is further directed to a method for producing a packaging material, and in particular a packaging material of the type described above.
[0061] In a first process step, a carrier material or a base layer (and in particular the above-mentioned base layer), in particular a cellulose-based carrier material (or a base layer), is provided. In a further and in particular subsequent process step, at least one print and / or at least one coating is applied to this carrier material. In particular, this print and / or coating is applied to at least one surface of the carrier material, which extends in a longitudinal direction and a width direction of the carrier material.
[0062] In a further process step, at least one structure is arranged and / or embossed into the carrier material.
[0063] Preferably, the carrier material is transported in a predetermined transport direction. This transport direction is preferably also the longitudinal direction of the carrier material. Particularly preferably, the application of the print and / or coating takes place during transport, and in particular during a transport movement of the carrier material. In another preferred method, a transport direction of the carrier material is changed during the embossing process.
[0064] In a further preferred method, the carrier material is transported at a transport speed and / or embossing speeds are used which are between 50 and 500 m / min, preferably between 150 and 350 m / min.
[0065] In a further preferred method, the coating is selected from a group of coatings which includes sticky-release coatings, grease barriers and the like
[0066] In a further preferred method, the arrangement or embossing of the structure is carried out using at least one embossing cylinder, with the arrangement or embossing preferably taking place inline. It is possible for the arrangement or embossing to take place immediately after printing or coating. However, it would also be possible for the embossing and / or structuring to take place in a separate operation.
[0067] In a further preferred method, the embossing and / or structuring of the carrier material and / or the base layer takes place across its entire width.
[0068] In a further preferred method, at least one section of the packaging material is twisted relative to another section of the packaging material.
[0069] In particular, this takes place in a further independent operation and in particular in an operation in which a packaged item is wrapped in the packaging material.
[0070] The present invention is further directed to the use of a packaging film and / or a packaging material with an embossed and / or structured layer, in particular an embossed and / or structured paper layer, for packaging food. This layer is preferably made of a cellulose material.
[0071] Particularly preferably, the foodstuffs are selected from a group of foodstuffs which includes sweets, candies, chocolate and the like.
[0072] Particularly preferably, the food has a volume which is between 0.25cm 3 and 1300cm 3 , preferably between 0.5cm 3 and 1000cm 3 lies
[0073] Preferably, the food items have a weight between 0.5 g per item and 500 g per item.
[0074] The present invention is further directed to a food product which is packaged in a packaging material of the type described above.
[0075] Further advantages and embodiments can be found in the attached drawings.
[0076] Showing:
[0077] Fig. 1 shows a representation of a twist wrap containing a product; Fig. 2 shows a schematic representation of a base layer of a packaging film;
[0078] Fig. 3 is a perspective view of a structured base layer; and
[0079] Fig. 4 shows a layer structure of a packaging film.
[0080] Fig. 1 shows a representation of a twist wrap 50 containing a product, in this case a candy. This wrap has a first packaging section 52 in which the product is wrapped. Reference numeral 54 designates a first end section of the wrap, and reference numeral 56 designates a second end section of the wrap.
[0081] Reference numerals 55 each indicate twist regions located between the packaging section 52 on the one hand and the end sections 54 and 56 on the other. Twisting occurs in these sections.
[0082] Fig. 2 shows a view of the base layer. Here, it extends in a longitudinal direction L and in a width direction B perpendicular to the longitudinal direction. A thickness direction is perpendicular to the longitudinal direction and the width direction and therefore, in Fig. 2, perpendicular to the plane of the figure.
[0083] Reference numeral 22 designates a first section of the base layer 2, which is rotated relative to a second section 24 of the base layer during product packaging. Reference numeral 26 designates a third section of the base layer, which is also rotated relative to the second section 24 of the base layer during product packaging.
[0084] The reference numerals 28 and 29 identify the twist sections in which the twisting or twisting takes place. In these areas, the base layer is structured, as indicated by the hatching. However, it would also be conceivable and preferred for the sections 22, 24, and 26 to also have a structure, at least partially or preferably. Particularly preferably, the entire base layer is structured and / or embossed. Fig. 3 shows an example of such a structure of the twist section 28. This structure here has a plurality of elevations 28a, which are evenly distributed over the surface of the twist section. As explained above, however, other designs of the twist section can also be selected.
[0085] Fig. 4 shows a schematic representation of the layer structure of a packaging film according to the invention. This film comprises the base layer 2, which has a first surface 2a and a second surface 2b.
[0086] A coating 4 is arranged on the first surface 2a. In addition, a print 6 can be arranged on the surface 2a or on the coating 4. Furthermore, at least one further optional layer can also be arranged on the second surface 2b.
[0087] The elevations 28a shown in Fig. 3 advantageously extend in the thickness direction D shown in Fig. 4
[0088] Fig. 4 shows a further embodiment of a packaging film according to the invention. In addition to the layers already shown in Fig. 3, a primer 32 is advantageously arranged on the coating 4. Preferably, a print 6 is also provided, which is advantageously arranged on the primer 32 but could also be arranged on the coating 4.
[0089] Preferably, an overprint varnish 34 is further arranged on the print 6.
[0090] The reference numeral 38 denotes an optional further primer, which is preferably arranged between the coating 4 and the base layer 2.
[0091] Reference numeral 42 denotes a barrier coating and in particular a barrier varnish. Furthermore, a further coating, in particular a sticky release coating 44, is preferably provided, particularly on this barrier coating. Finally, a sealing medium is preferably also provided. This sealing medium 46 preferably represents an outer layer with respect to the packaging film. The applicant reserves the right to claim all features disclosed in the application documents as essential to the invention, provided that they are new, individually or in combination, compared to the prior art. It is further noted that the individual figures also describe features which may be advantageous in themselves. The person skilled in the art will immediately recognize that a specific feature described in a figure may also be advantageous without the adoption of further features from this figure.Furthermore, the person skilled in the art will recognize that advantages can also arise from a combination of several features shown in individual or different figures.
Claims
Embossed packaging material for twist wraps and process for its manufacture Patent claims 1. A cellulose-based packaging film (1) for packaging foodstuffs as a twist wrap, said packaging film (1) comprising a base layer (2) extending in a longitudinal direction (L), a width direction (B) perpendicular to the longitudinal direction (L), and a thickness direction (D) perpendicular to the longitudinal direction (L) and the width direction (B), and wherein the base layer comprises a first surface (2a) extending in the longitudinal direction (L) and the width direction (B), and a second surface (2b) extending in the longitudinal direction (L) and the width direction (B) and opposite the first surface (2a), and wherein the base layer (2) is made of paper and / or cellulose-containing material, characterized in that the base layer (2) comprises, at least in sections, a structure and / or embossing such thatthat a first section (22) of the base layer (2) can be rotated by at least 180° relative to a second section (24) of the base layer with respect to at least one axis of rotation in order to form the twist packaging - in particular without cracks.
2. Packaging film (1) according to claim 1, characterized in that the packaging film (1) is wax-free.
3. Packaging film (1) according to at least one of the preceding claims, characterized in that the structure has a plurality of lines which preferably run parallel to one another or the structure has an embossed pattern which is selected from a group of embossed patterns which include worm embossing, linen embossing, line embossing, wave embossing, grid embossing, dot embossing, needle embossing, damask embossing, image embossing, lettering embossing, Braille embossing or combinations thereof.
4. Packaging film (1) according to at least one of the preceding claims, characterized in that the embossing has an embossing depth (T) which is between 5 pm and 100 pm, preferably between 50 pm and 90 pm, preferably between 40 pm and 70 pm, particularly preferably between 30 pm and 50 pm and especially preferably between 7 pm and 25 pm.
5. Packaging film (1) according to at least one of the preceding claims, characterized in that a print is arranged on the first surface.
6. Packaging film (1) according to at least one of the preceding claims, characterized in that an inorganic barrier layer is arranged on the first surface (2a), which contains at least one substance selected from a group comprising a metal, a semimetal, a metal oxide, a semimetal oxide, aluminum, copper, titanium, gold, silver, aluminum oxide (AlOx), silicon oxide (SiOx), or mixtures thereof.
7. Packaging film (1) according to at least one of the preceding claims, characterized in that a coating is arranged on the base layer and preferably the coating is selected from a group of coatings which contains sticky-release coatings, grease barriers and the like.
8. Packaging film (1) according to at least one of the preceding claims, characterized in that it has a flexural rigidity which is between 2.0 mN and 6.0 mN, preferably between 2 mN and 4 mN, in a machine direction (MD) and between 5.0 mN and 13.0 mN in a transverse direction (TD).
9. Packaging film (1) according to at least one of the preceding claims, characterized in that the base layer (2) has an embossing at least in sections, wherein the embossing has an embossing depth which is greater than 5 pm, preferably > 7 pm, preferably > 30, preferably > 40 pm and particularly preferably > 50 pm, and < 100 pm, preferably < 90 pm, preferably < 70 pm, preferably < 50 pm and particularly preferably < 25 pm.
10. Packaging film (1) according to claim 9, characterized in that the embossing protrudes in the thickness direction over both the first surface (2a) and the second surface (2b).
11. Packaging film (1) according to at least one of the preceding claims, characterized in that the base layer (2) has a grammage which is less than 100 g / m 2 , preferably less than 80g / m 2 , preferably less than 60 g / m 2 , preferably less than 50 g / m 2 , preferably less than 40g / m2 and preferably greater than 10 g / m 2 , preferably greater than 15 g / m 2 , preferably greater than 20 g / m 2 preferably larger than 25 g / m 2 , preferably greater than 30 g / m 2 , preferably greater than 40 g / m 2 , preferably larger than 80g / m 2 is.
12. Food product packaged in packaging material (1) according to at least one of the preceding claims.
13. A method for producing a packaging material and in particular a packaging material according to at least one of the preceding claims, comprising the steps: - Providing a cellulose-based carrier material - Arranging at least one print and / or at least one coating on this carrier material - Arranging and / or embossing at least one structure into the carrier material.
14. Method according to the preceding claim, characterized in that the coating is selected from a group of coatings which includes sticky-release coatings, grease barriers and the like.
15. Method according to at least one of the preceding claims, characterized in that the arrangement or embossing of the structure is carried out by means of at least one embossing cylinder, wherein the arrangement or embossing is preferably carried out inline.
16. Method according to at least one of the preceding claims, characterized in that at least one section of the packaging material is rotated relative to another section of the packaging material.
17. Method according to the preceding claim, characterized in that one region of the packaging material is rotated relative to another region of the packaging material by up to two revolutions or even by several revolutions.
18. Method according to the preceding claim, characterized in that the axis of rotation runs transversely to a machine direction, namely in a transverse direction (TD).
19. Use of a packaging film and / or a packaging material with an embossed and / or structured layer, in particular an embossed and / or structured paper layer, for packaging food.