ES3038648T3 - Mouth-piece paper with thermally expandable particles - Google Patents

Abstract

The invention relates to a nozzle paper (1) that may be provided, by taking advantage of the effect of heat, with at least one protrusion (10), said nozzle paper comprising thermally expandable particles arranged on the substrate of the nozzle paper (1) or in the form of a print or coating (2), said print or coating (2) being arranged on the substrate of the nozzle paper (1).

Description

DESCRIPTION

Coated paper for nozzles with thermally expandable particles

The present invention relates to coated paper for nozzles with thermally expandable particles. The present invention relates in particular to coated paper for cigarette nozzles and Heat-Not-Burn consumer products, or more generally to nozzles of aerosol-generating consumer products.

Coated mouthpiece paper, often called "mouthpiece paper" or simply "mouthpiece," is the aerosol-generating part of the consumer article that comes into contact with the user's lips when smoking a filter cigarette or heating a Heat-Not-Burn (HBT) consumer article. The coated mouthpiece paper wraps around the filter portion and typically extends slightly lengthwise along the consumer article, including the lengthwise area of the tobacco strip or aerosol-generating substrate, where it wraps around the cigarette paper or the wrapper material of the aerosol-generating substrate. Coated mouthpiece paper is the outermost wrapping material of an aerosol-generating consumer article and, unlike cigarette paper, does not burn when the consumer article is used. Coated mouthpiece paper is most often paper, but it can also be a foil or a composite material made up of several layers of different materials.

Often, coated papers for mouthpieces feature a printed pattern. For example, this pattern might resemble cork. However, coated papers for mouthpieces that are white in the area that comes into contact with the lips are also available.

US patent 9307789B2 describes the application of a varnish structure to coated paper for nozzles. The structured application of the varnish requires a precise application device.

WO2019110768A1 describes a heat-shrinkable centering element in the form of an additional element located on the outside of the coating material. The centering element is, for example, a bimetallic element.

Document WO2017115196A1 relates to a smoking article that includes a flammable heat source. To extinguish the burning heat source, it is transferred to a tube, which may contain a heat-sensitive material to facilitate extinguishing the burning heat source. The invention relates to providing a structured coated paper for mouthpieces and an improved method for manufacturing such a coated paper.

To solve the problem, a coated paper for nozzles is proposed according to claim 1.

The coated paper for nozzles contains thermally expandable particles that, under the action of heat, expand to create a raised structure or at least a protrusion.

In one variant, the thermally expandable particles are contained within the coated paper substrate for nozzles.

The substrate is preferably paper, in particular the so-called base paper with a grammage of 30 to 60 g/m2, preferably 30 to 50 g/m2.

Less preferably, the substrate may include, in addition to the base paper, a sheet, particularly of cellulose hydrate. Less preferably, the substrate may consist of a single sheet, particularly of cellulose hydrate, or be present as a laminate of several sheets. In these cases, the thermally expandable particles may be contained within a sheet.

Preferably, the coated paper for nozzles is actually paper and the thermally expandable particles are contained within the paper, particularly by being incorporated into the paper fiber matrix during the paper manufacturing process.

In a second variant, the thermally expandable particles are contained within a printed material or coating. These particles can be applied with a non-film-forming ink or paint, or with a film-forming clear varnish or lacquer.

The expansion of the particles occurs preferably by the effect of heat when transporting a coated paper strip for nozzles along a heated cylinder or a hot stamping roller of a hot stamping machine.

In a first variant, it is only heated, so that, unlike the conventional use of the hot stamping machine, no hot stamping foil is applied.

In a second variation, in addition to or in conjunction with heating, a hot stamping sheet is applied. This way, the raised areas caused by the expanded particles are further emphasized by the hot stamping sheet.

The expansion can also be carried out with other machines that allow specific or structured heating of the coated paper web for nozzles, for example, thermal printers, in particular Braille thermal printers.

In another variation, heating is performed on the coated nozzle paper after it has been placed in a consumer product that generates aerosols. The coated nozzle paper forms the outer layer of the consumer product. Heating is preferably carried out before the consumer product is packaged for sale. In yet another variation, heating only occurs when the consumer uses the product, for example, by heating it in a Heat-Not-Burn device.

In one variant, a print or coating comprising thermally expandable particles is applied over the entire surface of the nozzle-coated paper, wherein the subsequent structure is formed by heating with a structured surface.

In one variant, a print or coating comprising structured, thermally expandable particles is applied to the nozzle-coated paper. In this case, the resulting structure can also be formed by heating a flat surface or by heating an aerosol-generating consumer item that is supplied with the nozzle-coated paper.

In one variant, a flat area extending in a band along one side of the coated nozzle paper is printed or coated, so that in the aerosol-generating product there is an annular area with thermally expandable particles.

The expansion is preferably carried out on a continuously moving coated paper tape for nozzles, where the thermally expanded structure is provided between two rollers (stamp roller and counter-pressure roller), transferring the stamping structure from the stamp roller to the coated paper for nozzles by means of heat and pressure.

In one variant, the expandable particles are applied with a varnish and are thus contained in a layer of varnish on the coated nozzle paper.

Varnish is understood to be a substance that forms a film.

In one variation, the varnish is a transparent varnish that hardens into a clear layer. Nitrocellulose clear varnish is the most recommended.

The clear varnish preferably includes nitrocellulose or ethylcellulose, thermally expandable particles, and one or more solvents selected from the group of solvents including ethanol, ethyl acetate, and isopropanol. The aforementioned solvents may be present in aqueous solution, so the paint includes thermally expandable particles, nitrocellulose or ethylcellulose, an organic solvent, and water. The clear varnish may also include effect pigments.

The application of the transparent varnish composition is preferably carried out in an amount of 0.25 g/m2 to 2 g/m2, especially preferably 0.5 g/m2 to 1 g/m2.

In a second variant, the varnish is a colored varnish that hardens, forming a colored varnish layer.

Colored varnish includes nitrocellulose or ethylcellulose, thermally expandable particles and color pigments, and one or more solvents selected from the solvent group that includes ethanol, ethyl acetate, and isopropanol. The aforementioned solvents may be present in aqueous solution, so that the liquid colorant includes nitrocellulose or ethylcellulose, color pigments, an organic solvent, and water. Colored varnish may also contain additives and/or fillers.

Colored varnish may also include effect pigments.

The application of the colored varnish composition is preferably carried out in an amount of 0.25 g/m2 to 8 g/m2, especially preferably from 1 g/m2 to 4 g/m2.

The colored varnish is applied as a monochromatic coating to the surface. The coating may be in the form of a single strip or several separate strips. The varnish composition preferably has a viscosity of 8 to 16 seconds, particularly 10 to 14 seconds. The viscosity value is determined by a drain cup test with a 4 mm diameter cup (ISO 4 mm cup according to EN ISO 2431, version 1993-02-15).

The application of clear varnish or colored varnish is preferably done by gravure printing, in particular rotary gravure printing.

The varnish layer is preferably applied in one coat, and to a lesser extent in two coats.

The application is preferably done directly onto the base paper of the coated paper for nozzles.

The base paper preferably has a basis weight of 30 to 60 g/m2, especially preferably 30 to 50 g/m2.

The varnish is preferably applied to an untreated surface of the base paper. Therefore, it is preferable that the base paper not be coated.

In one variation, the coating is applied as one or more colored varnish strips onto white base paper. The coated paper for nozzles preferably has at least one white area and one area with a colored layer, these preferably running in a band around the circumference of the aerosol-generating consumer item.

In one variant, the expandable particles are applied with a water-based printing ink and are thus printed on the nozzle-coated paper.

The water-based printing ink preferably comprises a viscosity of 15 to 60 seconds, especially preferably 16 to 35 seconds, in particular 16 to 21 seconds.

The application of water-based printing ink is preferably carried out in an amount of 0.25 g/m2 to 8 g/m2, especially preferably from 1 g/m2 to 4 g/m2.

The coated paper for nozzles preferably has a colored layer that imitates the appearance of cork. The paint application can be a colored paint layer, as described above. In a second variant, the color application can be a non-film-forming coating or print, for example, in the form of colored ink or printing ink, where a clear varnish can be applied over the colored coating as described above. The clear varnish layer is preferably spread over the entire surface of the coated paper for nozzles or is registered as a single colored band layer or several colored band layers. Expandable particles can be contained in the colored ink or printing ink and/or in the clear varnish layer.

Colored ink and/or varnish are applied onto a continuously moving web of material on the base paper. After application, the web of material is preferably moved through a drying device.

Heat dryers, particularly hot air dryers and/or heated rollers, are preferred as drying devices. Infrared radiators can also be used as an alternative or complement, although they are less recommended.

Drying is preferably carried out at temperatures below the expansion temperature of the particles. If the expandable particles are contained within a selectively or structuredly applied printing or varnish layer, drying can also be carried out above the expansion temperature, so that the raised area forms during drying.

Once the varnish layer is dry, the strip of material is wound onto a reel or fed directly into a stamping device or hot stamping machine to create the thermally expanded structure. Once the structure is manufactured, the strip of material is wound onto a reel or fed into a cigarette-making machine.

The coated paper for nozzles can be fitted with laminated elements, particularly metallic laminated elements, on the hot stamping machine. These are usually in the form of thin strips or logos.

Hot stamping is performed using established procedures, where the foil element is applied by pressure and heat from a transfer element to the coated nozzle paper. The areas of the coated nozzle paper supplied with the foil elements become hotter during the hot stamping process, causing the particles beneath the foil element to expand.

The invention also includes an installation for manufacturing coated paper for nozzles, comprising:

a machine for printing or coating coated paper with ink or varnish,

a machine for hot stamping coated paper for nozzles.

Optionally, a machine for coating nozzle-coated paper with ink can be provided before the machine for coating nozzle-coated paper with varnish, or the machine for coating nozzle-coated paper with varnish can further comprise means for coating with another printing ink.

Optionally, a nozzle-coated paper printing machine is also available, which prints multi-colored logos on nozzle-coated paper.

The coated paper for nozzles moves in the form of a ribbon through the corresponding machine, where the application of ink or varnish and the hot stamping are preferably carried out continuously in the longitudinal direction of the ribbon.

In an advantageous variant, the coated paper tape for nozzles is not transferred from one machine to another, but after passing through each machine, it is wound onto a reel and transferred to the next machine.

The belt, which moves through the machine to coat the nozzle-coated paper with ink or varnish, is composed of several nozzle-coated papers arranged transversely to the direction of movement, wherein the direction of the nozzle-coated paper that is transverse to the direction of movement, i.e., along the width of the belt, is subsequently arranged in the longitudinal direction of the consumer article.

Preferably, the machine comprises a cutting device for printing or coating the nozzle-coated paper with ink or varnish, which cuts the tape lengthwise after applying the ink or varnish layer, so that at least two narrower tapes of nozzle-coated paper coated with ink or varnish are obtained, which are wound onto a reel respectively.

It is recommended to feed these reels with narrower tapes to the hot stamping machine for coated paper nozzles.

The most suitable thermally expandable particles are expandable microspheres, which expand upon contact with heat, forming hollow spheres with a larger volume. Expandable microspheres can contain a gas or a liquid, which expands with heat or evaporates as their volume increases. The deformation is irreversible or remains after cooling.

Thermally expandable particles are preferably presented as thermoplastic polymer particles or gel particles.

Particle expansion is preferably achieved through contact technology. This involves transferring the raised structure of a heated surface to the nozzle's cover paper. This contrasts with conventional stamping processes, where the raised structure of a surface is transferred to the nozzle's cover paper in the form of indentations.

The expansion of the particles can also be done without contact, for example, by heating the area to be expanded with a laser beam.

Expandable particles preferably have an expansion temperature of 100 °C to 250 °C.

Expandable particles are preferably found in an unexpanded state, with an average size between 1 pm and 50 pm. During expansion, their diameter preferably increases between five and fifteen times.

In addition to hollow polymer microspheres, inorganic particles such as expanded mica, expanded graphite, or pearlite can also be used.

In one variation, the coated paper for nozzles is heated in specific areas using a laser beam. This allows the coated paper to receive a laser-textured surface directly after printing or coating, or on the cigarette machine or the finished cigarette before packaging. The laser enables the creation of fine lines, logos, codes, QR codes, or company symbols (crests, distinctive signs, etc.) as an embossed structure in the areas of the coated paper where thermally expandable particles are present. The laser can be moved line by line across the surface of the coated paper, striking only the areas that will subsequently be raised or where the laser is active. Alternatively, the laser beam can be moved along a predefined path using two coordinates on the surface of the coated paper. If the laser beam is applied along a continuously moving path of the coated paper, simply moving the laser beam transversely to the direction of travel of the coated paper may be sufficient.

The laser beam path and/or the laser beam's on/off pattern can be individually programmed, allowing for different shapes to be raised on the nozzle-coated paper. In one variation, the raised areas on successive nozzle-coated papers along the web can differ in shape or position, or, if a code is used, in their meaning. In another variation, the raised areas on successive nozzle-coated papers perpendicular to the web can differ in shape or position, or, if a code is used, in their meaning.

In another variant, nozzle-coated paper is only partially coated with a varnish or water-based printing ink, where the thermally expandable particles are contained within the varnish or printing ink. Thus, the expandable particles are only present in certain areas of the nozzle-coated paper, so that it comprises at least one area with expandable particles and at least one area without. At least one of these areas may be present in the form of a symbol, code, or pattern. The varnish or water-based printing may be transparent or the same color as the background or the area of the nozzle-coated paper that is not coated with said varnish or water-based printing. In this way, the area comprising expandable particles is optically indistinguishable from the area without them. Only upon heating do the areas become tactile and therefore also distinguishable to the naked eye, since after heating the areas comprising expandable particles separate from the rest, forming a raised relief.

Heating can be performed on the coated paper strip material for nozzles, on the cigarette machine, or on a consumer item that generates aerosols, before, during, or after use.

This variant allows the implementation of an initially invisible security feature that becomes detectable through heating, making it possible to detect counterfeits that do not include this security feature.

The invention is illustrated by drawings:

Fig. 1: illustrates the application of a coated paper for mouthpieces according to the invention in a filter cigarette.

Fig. 2: illustrates the application of a coated paper for nozzles according to the invention in a Heat-Not-Burn consumer article.

Fig. 3: illustrates the application of a coated paper for mouthpieces according to the invention in a filter cigarette.

Fig. 4: illustrates an example of coated paper for nozzles according to the invention.

Fig. 5: illustrates the performance of a laser elevation.

Fig. 6: illustrates another example of coated paper for nozzles according to the invention.

Fig. 1 illustrates an exemplary structure of a filter cigarette, which is equipped with a coated paper 1 for mouthpieces according to the invention, which includes a layer of varnish or printing 2. The substrate of the coated paper 1 for mouthpieces or the varnish layer or printing 2 contains thermally expandable particles.

A common filter cigarette also includes a smoking paper 3, which wraps a strand 4 of aerosol-generating substrate, which in a filter cigarette is usually referred to as a tobacco strand. A common filter cigarette also includes a filter paper 5, which wraps the filter 6. But the coated mouthpiece paper 1 in question may also be provided in unfiltered cigarettes.

Fig. 2 illustrates an exemplary structure of a Heat-Not-Burn consumer article, which is equipped with a nozzle-coated paper 1 according to the invention, comprising a varnish or printing layer 2. The substrate of the nozzle-coated paper 1 or the varnish layer or printing 2 contains thermally expandable particles.

A typical Heat-Not-Burn consumer item further comprises an aerosol-generating substrate strand 4, a hollow section 7, a cooling section 8, and a filter 6. These sections may or may not include their own wrapping materials.

Since the strand 4 in Heat-Not-Burn consumer articles is heated without burning the wrapping material, the coated nozzle paper 1 can extend the entire length of the Heat-Not-Burn consumer article. In this case, the coated nozzle paper 1 can be made of several layers and include, for example, an inner aluminum layer, at least in the area of strand 4. However, contrary to what is shown, a coated nozzle paper 1 can also be placed on the Heat-Not-Burn consumer article that extends only over a portion of the article, in which case there may be additional wrapping material for the strand and, optionally, also the other components 6, 7, and 8.

The Heat-Not-Burn consumer item can be heated using an electronic device (Heat-Not-Burn device), wherein the Heat-Not-Burn consumer item is inserted into the device with strand 4, so that the nozzle-coated paper 1 and the printing or varnish layer 2 present thereon are exposed to the user's lips. As shown, it can be anticipated that there will be no printing or varnish layer 2 in the area where strand 4 is located or in the area inserted into the device.

In another known version, the Heat-Not-Burn consumer article may comprise a heat source in front of strand 4, in particular in the form of charcoal.

A print or varnish layer 2, containing thermally expandable particles, may be present in the heat source zone or in the strand 4 zone, so that the raised structure occurs when the consumer item is used, if the print or varnish layer 2 is only present in zones or in a structured way.

The print or varnish layer 2 can be extended, as shown in Figs. 1 and 2, only over a partial area of the nozzle-coated paper 1 and, for example, can only be present at the rear end of the aerosol-generating consumer article, opposite strand 4.

The nozzle-coated paper 1 may comprise perforations, which may be present in that area, which is not provided with a print or varnish layer 2, or which passes through the print or varnish layer 2 and the base paper.

In another embodiment, the coated paper 1 for nozzles can be provided over its entire surface with the print or the varnish layer 2, as illustrated in Fig. 3.

As illustrated in Figures 2 to 4, the nozzle-coated paper 1 may further comprise a foil element 9, wherein this may be placed over the print or varnish layer 2, or in an area not covered by the print or varnish layer 2.

The printing or varnish layer 2 can be a clear varnish layer or a colored varnish layer or a colored application of a printing ink or non-film forming printing ink.

In the case of a clear varnish layer, it can be applied to white base paper or to paper that is printed or coated in color. The clear varnish layer can cover a larger area than the printed or coated paper.

In the case of a colored varnish layer, the colored varnish layer itself forms the colored coating or colored zone of the coated nozzle paper.

Figure 4 shows a strip of coated paper 1 for nozzles, isolated in top view, comprising a base paper, a printed or varnish layer 2, and three foil elements 9. The printed or varnish layer 2 is illustrated by the dotted surface.

Because the base paper of the coated paper 1 for nozzles or the printing or varnish layer 2 contains thermally expandable particles, a tactilely perceptible structure can be generated on the surface. Figures 1 to 4 show 10 exemplary elevations that can be produced within the scope of the present invention.

In the example in Fig. 1, the thermally expandable particles are contained, for example, only in the base paper or in the substrate of the nozzle-coated paper 1, specifically embedded within it. When a partial area of the nozzle-coated paper 1 is heated, the thermally expandable particles expand in this partial area, producing a raised area 10 in the base paper or in the substrate of the nozzle-coated paper 1. These raised areas 10 may be present in an area of the nozzle-coated paper 1 that does not have any printing or varnish layer 2. These raised areas 10 may also be present in an area of the nozzle-coated paper 1 that includes a printed area or varnish layer 2, where the raised areas 10 are present beneath the printed area or varnish layer 2.

In the example in Fig. 2, the thermally expandable particles are contained, for example, in the base paper or the substrate of the nozzle-coated paper 1 and in the printing or varnish layer 2. These raised areas 10 may be present in an area of the nozzle-coated paper 1 that does not have any printing or varnish layer 2. These raised areas 10 may also be present in an area of the nozzle-coated paper 1 that has printing or varnish layer 2, where the raised areas 10 are present under and within the printing or varnish layer 2. If the thermal effect occurs over a small surface, the expansion of the particles may be limited to the printing or varnish layer 2, as illustrated by the small raised area 10 on the underside of the consumer item.

Figure 2 further illustrates a foil element 9 strip, which was applied by hot stamping to the coated nozzle paper 1. Due to the heat applied during hot stamping, the particles expand beneath the foil element 9 strip, resulting in a raised area 10 that is recorded on the foil element 9 strip.

Figures 3 and 4 illustrate that the thermally expandable particles are contained, for example, only within the printing or varnish layer 2. Heating the coated nozzle paper 1 in this case causes the particles to expand within the printing or varnish layer 2, so that the substrate, particularly the base paper, does not exhibit any raised areas 10. Therefore, the foil element 9 illustrated in Figure 4 in the area of the substrate not covered by the printing or varnish layer 2 does not cause a raised area 10. As illustrated in Figures 3 and 4, raised areas 10 are present within the printing or varnish layer 2 and can be formed by localized heat with or without the application of a foil element 9. As already mentioned, foil element 9 can be present in the form of a tape on the coated nozzle paper 1, or as further illustrated in Fig. 4, as a locally limited foil element 9, for example, in the form of a dot or logo.

Figures 3 and 4 also show raised areas 10 in the print or varnish layer 2, which are present as dots and are not covered by foil elements 9. The dots may be arranged according to the characters of Braille. The dots or other shapes may also run as a regular pattern across the entire surface of the print or varnish layer 2.

Of course, in the variants of Fig. 1 and 2, a regular pattern of elevations 10 or signs of Braille writing as elevations 10 may also be present on the substrate or base paper of the coated paper 1 for nozzles.

As illustrated in Fig. 5, a raised structure, or at least a raised area 10, can be formed in a flat area containing thermally expandable particles by heating it with a laser beam moving across the area. In the example in Fig. 5, the inscription ABC is created as a raised structure using the laser beam. The thermally expandable particles can be present in the substrate, in the printed material, or in a layer 2 of varnish. The example in Fig. 5 further illustrates that the nozzle-coated paper 1 can be present without color printing, where the thermally expandable particles can be present in the base paper, in a colorless printed material, or in a layer 2 of clear varnish. This colorless printed material or layer 2 of clear varnish can be present on the entire surface of the nozzle-coated paper 1 or in one or more partial areas. Depending on the laser beam's energy, it can also cause a color change in the nozzle-coated paper 1, so that the structure is only tactilely distinct from the surrounding areas or also changes color tone.

Instead of a laser beam, the raised structure or at least a 10% elevation could be formed by a hot punch or by heating through the openings of a template.

As illustrated in Fig. 6, a print or varnish layer 2 containing thermally expandable particles can only be present in specific areas on the nozzle-coated paper 1. In the example in Fig. 6, two areas or structures are printed or coated, represented respectively as the letters ABC. By heating the nozzle-coated paper 1 or the respective area, a raised structure or a raised area 10 can be generated in both areas or only in one of them. As shown, it is preferred that the areas with thermally expandable particles not differ in color from the surrounding surface. This can be achieved by means of a transparent print or varnish, or by means of a colored print or varnish that matches the color of the background or surrounding area. In the example in Fig. 6, the dotted area symbolizes a cork-effect print. Therefore, the print or varnish layer 2 in this area can be transparent or in the color tone of the cork-effect print.

The nozzle-coated paper 1, in the sense of the outermost wrapping material of an aerosol-generating consumer article that does not burn during consumption, can be placed in a Heat-Not-Burn consumer article such that it is located in the strand area 4. In this respect, the nozzle-coated paper 1 preferably comprises a printed area or varnish layer 2 containing thermally expandable particles, which is surrounded or sandwiched between a zone without thermally expandable particles, wherein this zone is heated with thermally expandable particles during heating by means of a Heat-Not-Burn device.

The examples should be understood as purely explanatory. The coated paper 1 for nozzles with raised edges 10, formed by thermally expanded particles, may be present in any type of consumer article that generates aerosols, for example, as cigar or cigarillo wrapping material, or also as sheets of rolling material for hand-rolled cigarettes.

The coated nozzle paper 1 must be arranged on the aerosol-generating consumer item so that the print or varnish layer 2 is on the outside of the aerosol-generating consumer item. If the print or varnish layer 2 is only present in a partial area, it may be arranged away from strand 4 or in the strand 4 area of a Heat-Not-Burn consumer item.

Claims (14)

1. Nozzle-coated paper (1), which may be provided with at least one raised layer (10) by the action of heat, characterized in that the nozzle-coated paper includes thermally expandable particles located in the substrate of the nozzle-coated paper (1) or in a print or varnish layer (2), said print or varnish layer (2) being on the substrate of the nozzle-coated paper (1). 2. Coated paper (1) for nozzles according to claim 1, characterized in that it has at least one elevation (10), wherein the elevation (10) is formed by thermally expanded particles that are formed by the thermally expandable particles by the action of heat on the coated paper (1) for nozzles. 3. Paper (1) coated for nozzles according to any one of claims 1 to 2, characterized in that the thermally expandable particles are present in the substrate of the paper (1) coated for nozzles and the substrate is paper. 4. Paper (1) coated for nozzles according to any one of claims 1 to 3, characterized in that the thermally expandable particles are present in the printing or in the varnish layer (2). 5. Nozzle-coated paper (1) according to claim 4, characterized in that the printing or the varnish layer (2) containing the thermally expandable particles is only present in some areas of the nozzle-coated paper (1), such that the nozzle-coated paper comprises at least one surface area where there are thermally expandable particles and at least one surface area where there are no thermally expandable particles. 6. Paper (1) coated for nozzles according to claim 5, characterized in that at least one surface area where there are thermally expandable particles is not optically distinguishable from at least one surface area where there are no thermally expandable particles, wherein the areas can be distinguished after exposure to heat due to the expanded particles. 7. Paper (1) coated for nozzles according to any one of claims 1 to 6, characterized in that the printing or varnish layer (2) is formed by the application of a printing ink, printing ink, transparent varnish layer or colored varnish layer. 8. Paper (1) coated for nozzles according to any one of claims 1 to 7, characterized in that on the at least one elevation (10) there is a sheet element (9). 9. A method for manufacturing a nozzle-coated paper (1) comprising at least one raised section (10), characterized in that a nozzle-coated paper (1), comprising thermally expandable particles in the substrate of the nozzle-coated paper (1) or in a print or varnish layer (2) on the substrate, is brought into contact with a heated surface or irradiated with a laser beam, such that the thermally expandable particles in those areas of the nozzle-coated paper (1) that are in contact with the heated surface or are heated by the laser beam, expand and form the raised section (10). 10. Method according to claim 9, characterized in that a continuous web of nozzle-coated paper (1) is moved along a stamping roll with a heated structured surface, wherein the elevations of the stamping roll structure are transferred as elevations (10) to the nozzle-coated paper (1). 11. Method according to claim 9, characterized in that a continuous web of nozzle-coated paper (1) moves through a hot stamping device, whereby foil elements (9) are affixed to the nozzle-coated paper (1), wherein the thermally expandable particles of the nozzle-coated paper (1), which are in the area of an affixable foil element (9), expand and form a rise (10). 12. Aerosol generating consumer article comprising a coated paper (1) for nozzles according to any one of claims 1 to 8, characterized in that after heating the coated paper (1) for nozzles on the outside of the consumer article there is a elevation (10) in the place of the heated zone. 13. Aerosol generating consumer article according to claim 12, characterized in that the elevation (10) is present in the form of a symbol, structure or code. 14. Device for manufacturing a nozzle-coated paper (1) according to any one of claims 1 to 8, characterized in that it comprises a machine for printing or coating the nozzle-coated paper (1) and a hot-stamping machine for the nozzle-coated paper (1), wherein a belt can be transported through each machine, which is composed in the transverse direction of several nozzle-coated papers (1) for an aerosol-generating consumer article each.