EP3726506B1 - Feuille de scellement - Google Patents

Feuille de scellement Download PDF

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Publication number
EP3726506B1
EP3726506B1 EP19170374.3A EP19170374A EP3726506B1 EP 3726506 B1 EP3726506 B1 EP 3726506B1 EP 19170374 A EP19170374 A EP 19170374A EP 3726506 B1 EP3726506 B1 EP 3726506B1
Authority
EP
European Patent Office
Prior art keywords
layer
sealing film
adhesion
layers
color
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP19170374.3A
Other languages
German (de)
English (en)
Other versions
EP3726506A1 (fr
Inventor
Marietta Ulrich-Horn
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Securikett Ulrich & Horn GmbH
Original Assignee
Securikett Ulrich & Horn GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=66349298&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP3726506(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Securikett Ulrich & Horn GmbH filed Critical Securikett Ulrich & Horn GmbH
Priority to EP19170374.3A priority Critical patent/EP3726506B1/fr
Priority to US17/603,438 priority patent/US20220208027A1/en
Priority to CN202080029605.7A priority patent/CN113728371B/zh
Priority to PCT/EP2020/060915 priority patent/WO2020212603A1/fr
Publication of EP3726506A1 publication Critical patent/EP3726506A1/fr
Application granted granted Critical
Publication of EP3726506B1 publication Critical patent/EP3726506B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F3/00—Labels, tag tickets, or similar identification or indication means; Seals; Postage or like stamps
    • G09F3/02—Forms or constructions
    • G09F3/03—Forms or constructions of security seals
    • G09F3/0376—Forms or constructions of security seals using a special technique to detect tampering, e.g. by ultrasonic or optical means
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F3/00—Labels, tag tickets, or similar identification or indication means; Seals; Postage or like stamps
    • G09F3/02—Forms or constructions
    • G09F3/0291—Labels or tickets undergoing a change under particular conditions, e.g. heat, radiation, passage of time
    • G09F3/0292—Labels or tickets undergoing a change under particular conditions, e.g. heat, radiation, passage of time tamper indicating labels
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F3/00—Labels, tag tickets, or similar identification or indication means; Seals; Postage or like stamps
    • G09F3/02—Forms or constructions
    • G09F3/0297—Forms or constructions including a machine-readable marking, e.g. a bar code
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F3/00—Labels, tag tickets, or similar identification or indication means; Seals; Postage or like stamps
    • G09F3/02—Forms or constructions
    • G09F3/03—Forms or constructions of security seals
    • G09F3/0305—Forms or constructions of security seals characterised by the type of seal used
    • G09F3/0341—Forms or constructions of security seals characterised by the type of seal used having label sealing means
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F3/00—Labels, tag tickets, or similar identification or indication means; Seals; Postage or like stamps
    • G09F3/08—Fastening or securing by means not forming part of the material of the label itself
    • G09F3/10—Fastening or securing by means not forming part of the material of the label itself by an adhesive layer
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F3/00—Labels, tag tickets, or similar identification or indication means; Seals; Postage or like stamps
    • G09F3/02—Forms or constructions
    • G09F2003/0222—Features for removal or adhesion, e.g. tabs
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F3/00—Labels, tag tickets, or similar identification or indication means; Seals; Postage or like stamps
    • G09F3/02—Forms or constructions
    • G09F2003/0225—Carrier web
    • G09F2003/0226—Carrier sheet
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F3/00—Labels, tag tickets, or similar identification or indication means; Seals; Postage or like stamps
    • G09F3/02—Forms or constructions
    • G09F2003/023—Adhesive
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F3/00—Labels, tag tickets, or similar identification or indication means; Seals; Postage or like stamps
    • G09F3/02—Forms or constructions
    • G09F2003/0257—Multilayer
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F3/00—Labels, tag tickets, or similar identification or indication means; Seals; Postage or like stamps
    • G09F3/02—Forms or constructions
    • G09F2003/0272—Labels for containers
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F3/00—Labels, tag tickets, or similar identification or indication means; Seals; Postage or like stamps
    • G09F3/02—Forms or constructions
    • G09F2003/0276—Safety features, e.g. colour, prominent part, logo

Definitions

  • the present invention relates to a sealing film for application to a substrate, comprising a carrier film and a plurality of functional layers, the functional layers comprising at least two color presentation layers and at least two adhesion-controlling layers, the sealing film having an adhesive layer for attachment to the substrate, the functional layers between the carrier film and are arranged in the layer of adhesive, the carrier film being at least partially detachable from the functional layers, in particular from the at least two color representation layers, in order to bring the sealing film from a first state into a second state, with at least one symbol being optically visible in the second state, which Symbol is not visible in the first state, wherein the at least two adhesion-controlling layers are provided to define areas from the at least two color presentation Sch when detaching the carrier film and to make the at least one symbol visible.
  • sealing films can also be used to cover confidential information.
  • the sensitive information can be, for example, a PIN or QR code, a hologram or an identity code.
  • the confidential information only becomes visible to the viewer when the sealing foil is removed.
  • a disadvantage of conventional sealing films is that they are often easy to manipulate. In many cases it is possible to open the sealing foil attached to a substrate, for example paper or cardboard, manually or with the help of a tool such as a knife, and then to apply it back to its original position, so that the viewer is aware of the manipulation carried out previously noticing anything.
  • sealing films that can be applied to a substrate by means of a layer of adhesive and in which the layer of adhesive prevents manual detachment or detachment with a tool, such as a knife.
  • a tool such as a knife.
  • a closure label is disclosed by which once a packaging element has been opened it is clearly and irreversibly indicated.
  • the closure label has a plurality of layers which are partially connected to one another, with a top layer being partially detachable from a bottom layer.
  • a top layer being partially detachable from a bottom layer.
  • defined areas are one between the top layer and the bottom layer arranged coating, in particular a color layer, with the help of at least one release coating layer detachable.
  • a graphic object previously hidden from the observer becomes optically visible on an emblem area of the closure label, as a result of which once the packaging element has been opened is clearly and irreversibly indicated.
  • the disadvantage of the known closure label is that when the carrier film is detached from the other layers, only a relatively low-contrast symbol is produced. This implies the risk that the carrier film will be applied back to the lower layers and the viewer will find it difficult to tell whether the closure label has already been detached, since the manipulated and non-manipulated closure label hardly differ from one another. This means that such a closure label is only suitable to a limited extent for covering confidential information, since the viewer cannot be sure whether the confidential information has previously been read by another person.
  • the EP 0 974 951 B1 discloses a label for covering information, in particular secret numbers, with an adhesive layer, a base layer and a color layer that can be irreversibly removed by rubbing. An authenticity feature is attached to the color layer, which is damaged or destroyed when the color layer is removed, so that you can immediately see whether the color layer was previously worked on.
  • a disadvantage of the known label is that an additional production step is necessary, since an extra layer of color, which is usually very thick, has to be applied to the base layer in order to adequately conceal the information.
  • the EP 1 278 173 A2 describes a security identification label comprising a paper strip which identification details, an adhesive layer arranged on the back of the paper strip, a strip of siliconized paper and an intermediate strip which is arranged between the paper strip and the siliconized paper and has another adhesive layer on its back. Furthermore, an intermediate message is also arranged between the intermediate strip and the further adhesive layer.
  • the task set at the outset is achieved in the case of a sealing film for application to a substrate, comprising a carrier film and a plurality of functional layers, the functional layers comprising at least two color presentation layers and at least two adhesion-controlling layers, the sealing film having an adhesive layer for attachment to the substrate, the functional layers between the Carrier film and the adhesive layer are arranged, the carrier film at least partially from the functional layers, in particular from the at least two color display layers, is removable to bring the sealing film from a first state to a second state, wherein in the second state at least one symbol is optically visible, which symbol is not visible in the first state, wherein the at least two adhesion-controlling layers are provided to detaching the carrier film, separating out defined areas from the at least two color representation layers and making the at least one symbol visible, according to the invention achieved in that the functional layers comprise at least one further adhesion-controlling layer, in order to have at least one behind the further adhesion-controlling layer, viewed from the carrier film in the direction of the adhesive
  • the structure of the sealing film according to the invention can be summarized as follows: Several functional layers are applied between the carrier film and the adhesive layer, the functional layers comprising at least two color presentation layers and at least two adhesion-controlling layers.
  • the functional layers comprising at least two color presentation layers and at least two adhesion-controlling layers.
  • at least one symbol is formed, with areas defined by the at least two adhesion-controlling layers being separated from the at least two color representation layers, which form the at least one symbol. This means that the at least one symbol remains hidden from an observer before the sealing film according to the invention is opened for the first time and is only visible to the eye once the opening has been completed.
  • the sealing film according to the invention has a layer that has been peeled off and a residue that remains stuck to the substrate.
  • the at least one symbol can be visible on the peeled-off layer and/or on the residue in the second state.
  • the separated defined areas of the at least one color presentation layer do not have to adhere directly to the carrier foil or the adhesive layer, but can also adhere to them indirectly via other functional layers arranged on the carrier foil or the adhesive layer.
  • the sealing film according to the invention comprises a further adhesion-controlling layer which, in the course of the detachment of the carrier film, makes a layer at least partially visible which, seen from the carrier film in the direction of the adhesive layer, is behind the other layer adhesion-controlling layer is located.
  • a further adhesion-controlling layer which, in the course of the detachment of the carrier film, makes a layer at least partially visible which, seen from the carrier film in the direction of the adhesive layer, is behind the other layer adhesion-controlling layer is located.
  • the sealing film according to the invention can also have any number of further functional layers which are aimed at manufacturing advantages or optical effects, without deviating from the idea according to the invention.
  • the functional layers create something optically perceptible, e.g. a color or a code, or an effect is created, for example by means of adhesion-controlling layers.
  • “functional layers” is the umbrella term for, for example, the color display layers, the adhesion-controlling layers and the layer lying behind the further adhesion-controlling layer.
  • the color presentation layers may include multiple make-up layers. That is, depending on the color of a color representation layer, the color representation layer comprises one or more composition layers.
  • a dark gray color presentation layer typically includes a white and a black build layer due to the printing process that takes place in practice.
  • the code can be located directly on the packaging and / or part of the sealing film, preferably part of the functional layers between the Carrier film and the adhesive layer are arranged, and / or be part of the adhesive layer.
  • At least one of the color representation layers can be opaque or contain an interference pattern, or the code cannot be distinguished optically for other reasons.
  • the at least two color representation layers have different colors.
  • the at least two color representation layers can also each have the same color.
  • at least one symbol can be visible in the second state, since the refraction of light in those parts of the color presentation layers which have been separated out by means of the adhesion-reducing layers in the course of detachment changes.
  • the color display layers can be opaque, semi-opaque, translucent, or transparent.
  • the at least two color representation layers each consist of different colors in sections, which can be arranged, for example, in the form of strips or a grid or in the form of images and/or patterns.
  • the functional layers do not necessarily have to extend over an entire surface of the sealing film according to the invention, i.e. over the entire surface. That is, it would be conceivable that parts of the functional layers are only partially arranged on the surface of the sealing film according to the invention.
  • the layer lying behind the further adhesion-controlling layer is at least comprises a code of optical characters and/or graphic symbols.
  • the code is therefore also not visible in the first state and only becomes visible after the carrier film has been detached, i.e. in the second state.
  • the code is covered by the at least two color representation layers in such a way that reading the code lying under the at least two color representation layers is hardly possible, preferably impossible.
  • at least one of the color representation layers can be opaque or contain an interference pattern, or the code cannot be distinguished optically for other reasons.
  • the layer lying behind the further adhesion-controlling layer is a code representation layer.
  • the code typically contains confidential information.
  • the code can be, for example, a PIN or QR code, a hologram or an identity code.
  • the layer behind the further adhesion-controlling layer is transparent at least in sections and is encompassed by the functional layers and that the functional layers comprise at least one further color-representation layer, which further color-representation layer is between the layer that lies behind the further adhesion-controlling layer and the adhesive layer is arranged. Viewed from the carrier film in the direction of the adhesive layer, the further color presentation layer is thus located behind the layer lying behind the further adhesion-controlling layer.
  • the functional layers thus at least partially include the code.
  • the code is at least partially part of the sealing film according to the invention.
  • the further color representation layer has the task of making the code readable.
  • the color of the further color representation layer and the color of the code preferably have a high contrast, as a result of which the code on the further color representation layer lying behind it, seen from the carrier film in the direction of the adhesive layer, is clearly visible.
  • the further color representation layer can serve as a privacy screen if the sealing film according to the invention, including all functional layers, is improperly removed from the substrate, for example with the aid of a tool.
  • the code cannot be read through the further color representation layer and is covered on the back by the further color representation layer.
  • the further color representation layer serves as a privacy screen if the sealing film according to the invention is applied to a transparent substrate, for example to a glass bottle. In this case, too, the code cannot be read - despite the transparent background - since the further color representation layer covers it on the back.
  • the further color presentation layer preferably fulfills both of the above-mentioned tasks. It is conceivable that the additional color display layer is opaque. However, it would also be possible for the additional color display layer to be at least partially transparent or translucent.
  • the code is located underground.
  • the adhesive layer is not applied under the entire surface of the sealing film according to the invention, ie over the entire surface - those sections in which the code should be visible on the substrate in the second state would then be spared.
  • the adhesive layer would only be arranged in sections underneath the functional layers.
  • the further adhesion-controlling layer can be omitted in those sections in which there is no adhesive layer.
  • the further adhesion-controlling layer could also only be present in sections in this case.
  • those behind the other Adhesion control layer lying layer could be present only in sections.
  • the sealing film according to the invention must be arranged very precisely on the background so that it can be ensured that those sections in which there is no adhesive layer is actually present above the code on the ground.
  • it is preferably provided with the sealing film according to the invention that the layer lying behind the further adhesion-controlling layer and the adhesive layer are transparent at least in sections in order to make a code on the substrate visible in the second state.
  • the code is preferably located on the substrate, for example on paper, cardboard or a packaging element, and is covered by the sealing film in the first state. This means that in this preferred exemplary embodiment, too, the code is not visible in the first state and only becomes visible after the carrier film has been detached, i.e. in the second state.
  • the adhesive layer to at least partially encompass the code.
  • the code is preferably a PIN or QR code, a hologram or an identity code.
  • At least one of the color representation layers can be opaque or contain an interference pattern or the underlying code cannot stand out optically for other reasons.
  • At least part of the code could also be located within or on one of the functional layers, preferably on the layer lying behind the further adhesion-controlling layer. I.e. at least part of the code is on the background and at least part of the code is within or on one of the functional layers.
  • the layer lying behind the further adhesion-controlling layer ensures the effect of the further adhesion-controlling layer, because this ensures that the adhesion-controlling layer does not come into direct contact with the layer of adhesive.
  • the first color representation layer and the second color representation layer are designed in at least two different colors.
  • the at least two different colors preferably have very high contrasts.
  • both the first color representation layer and the second color representation layer consist of different colors in sections, which are arranged in strips, for example.
  • first color representation layer and the second color representation layer can each contain only one color, with the color of the first color representation layer being different from the color of the second color representation layer.
  • the two color display layers can also consist of the same color.
  • the first color representation layer consists of two different colors, e.g. black and white
  • the second color representation layer consists of two different colors, e.g. white and black, ie there is, for example, a striped or checkered arrangement of the two different colors.
  • the different colors of the first color representation layer are arranged differently, for example in opposite directions, than the two different colors of the second color representation layer.
  • the at least one symbol is formed from at least one of the at least two colors in the second state.
  • the at least one symbol is thus visible in one of the at least two colors of the first and second color representation layer or in a mixed color of the at least two colors of the first and second color representation layer.
  • a mixed color results, for example, from two color representation layers lying one on top of the other, in which case the color representation layer on top must not be opaque.
  • a violet mixed color results when one of the two color representation layers lying one above the other is blue and another of the two color representation layers lying one above the other is red.
  • At least one color is optically visible in the at least one symbol in the second state, which is not optically visible in an area that at least partially surrounds the at least one symbol and/or vice versa.
  • the adhesion-controlling layers are release lacquer layers which reduce the adhesion of the first color presentation layer and the second color presentation layer to adjacent layers of the sealing foil.
  • the adhesion-controlling layers include the first adhesion-controlling layer, the second adhesion-controlling layer and the further adhesion-controlling layer.
  • adjacent layer includes the functional layers and the carrier film.
  • a lower adhesion to the areas delimited by the defined areas is generated by release lacquer layers adjoining the first color representation layer and the second color representation layer, which means that the two color representation layers in those defined areas are smaller Adhesion does not permanently connect in a manner known per se to a further functional layer adjoining the release coating layer, in particular not to the carrier film, and therefore remain easily detachable.
  • the areas of the adjoining layers delimited by the defined areas can be permanently connected to one another.
  • adhesion-controlling layers prefferably be layers that increase the adhesion of the first color display layer and the second color display layer to adjacent layers of the sealing film.
  • the mode of action would then be exactly the opposite of what was said above.
  • the release lacquer layers are preferably translucent, particularly preferably transparent.
  • the release lacquer layers comprise at least one silicone and/or at least one wax.
  • the adhesion of those functional layers or the carrier film or that substrate to which the release lacquer layer adjoins is reduced to a precisely measured extent in a manner known per se, so that adjoining functional layers adhere to a lesser extent are.
  • the extent to which the adhesion is reduced can be controlled in particular via the choice of release varnish, via the layer thickness and/or via the concentration of the at least one silicone and/or the at least one wax in the release varnish layer.
  • the carrier film consists of transparent plastic. Due to the transparent design of the plastic, the at least two color representation layers arranged underneath are clearly visible at all times and it can be seen whether the at least two color representation layers are evenly distributed and thus untouched, or whether already defined areas in the form of a graphic symbol from the area of the at least one Color display layer were separated and thus a Manipulation of the sealing film according to the invention has taken place.
  • a flap is preferably provided in the sealing film according to the invention, which is connected directly or indirectly to the carrier film. That is, in terms of improved ease of use, the sealing film according to the invention has the tab which is also connected to the carrier film in the second state, but not to the adhesive layer.
  • the tab serves to hold the sealing film according to the invention.
  • the tab is an integral part of the backing film, but may also be a separate part attached to the backing film by any suitable method such as welding or gluing.
  • the tab is an integral part of one of the functional layers or is attached to one of the functional layers by a suitable method such as welding or gluing.
  • the tab is formed by a separate layer which is comprised of the functional layers.
  • the tab is arranged within the functional layers, preferably not over the entire surface. Ie the at least one symbol is formed during the transition to the inventive Sealing film from the first state to the second state preferably in an area adjacent to the tab.
  • an adhesive layer for example a laminate adhesive layer, to be part of the functional layers, which adhesive layer is not applied over the entire surface.
  • no adhesive layer can be applied in an area at a corner of the sealing film according to the invention, as a result of which the carrier film can be detached particularly well from the functional layers in this corner and thus assumes the function of a tab.
  • FIG. 1 shows a schematic representation of a structural composition of a sealing film 1 according to the invention with a code 15 within functional layers 4.
  • the in 1 sealing film 1 according to the invention shown corresponds to a first embodiment.
  • a first layer of the sealing film 1 according to the invention, viewed in a first direction 16, is a carrier film 3, which consists of a transparent plastic film, preferably of polypropylene or polyethylene or polyethylene terephthalate.
  • the plastic film can be matt or glossy. Furthermore, it would be conceivable that the plastic film is tinted but not opaque.
  • the sealing film 1 according to the invention applied to the substrate 2 by means of the adhesive layer 11 can only be detached from the substrate 2 by the use of force and also remains in place during a detachment process described later Sealing film 1 partially on the substrate 2.
  • the part of the sealing film 1 according to the invention that remains on the substrate 2 is referred to as residue 19.
  • the self-adhesive function of the adhesive layer 11 can be protected, for example, by a film which is removed before the sealing film 1 is applied or attached to the substrate 2 .
  • a correspondingly strong adhesive for example a pressure-sensitive adhesive
  • the pressure-sensitive adhesive can be acrylic-based or rubber-based, and it can be, for example, dispersed, dissolved in solvent, or applied as a hot melt.
  • a hot-melt adhesive could also be used to create a solid connection between the sealing film 1 and the surface of the substrate 2 .
  • the following functional layers 4 are arranged between the carrier film 3 and the adhesive layer 11 .
  • a first color display layer 5 is located behind the carrier film 3 as seen in the first direction 16 and is kept in the color white F2 in this exemplary embodiment. In principle, however, the color can be chosen arbitrarily.
  • a first adhesion-controlling layer 8 which in the exemplary embodiments shown is a first release lacquer layer 8 comprising at least one silicone and/or at least one wax, is arranged between the carrier film 3 and the first color representation layer 5.
  • release lacquer layers 8 , 9 , 10 alternative mixtures of substances can also be used as release lacquer layers 8 , 9 , 10 . It is essential, however, that the release coating layers 8, 9, 10 in the exemplary embodiments shown have suitable adhesion-reducing properties in order to Adhesion of that layer (a functional layer 4 or the carrier film 3) to which the respective release coating layer 8, 9, 10 is applied is reduced to a precisely measured extent, so that adjacent layers adhere or are less liable.
  • first color representation layer 5 seen in the first direction 16 there is a second color representation layer 6, which is black F4 in this exemplary embodiment.
  • the color of the second color representation layer 6 can be chosen arbitrarily.
  • the first color representation layer 5 and the second color representation layer 6 preferably consist of contrasting colors, as a result of which at least one high-contrast symbol 12 is produced in the course of the detachment process given a corresponding arrangement of the functional layers 4 .
  • a second adhesion-controlling layer 9 comprising at least one silicone and/or at least one wax.
  • a further adhesion-controlling layer 10 which in the exemplary embodiments shown is a further release lacquer layer 10, which comprises at least one silicone and/or at least one wax, and one layer 17 lying behind the further adhesion-controlling layer 10 is arranged.
  • the layer 17 lying behind the further adhesion-controlling layer 10 is transparent and includes a code 15.
  • the code 15 is a number combination of black characters.
  • code 15 is a QR code (cf. 4 ), a graphic symbol or similar.
  • the code 15 is not visible in a first state 13 of the sealing film 1 and only becomes visible after the carrier film 3 has been detached, i.e. in a second state 14 of the sealing film 1.
  • the transition from the first state 13 to the second state 14 thus corresponds to the previously mentioned detachment process.
  • a further color display layer 7 is arranged, which in the exemplary embodiment of FIG 1 white F2 is.
  • a different color would also be conceivable, with a color preferably being selected which has a high contrast to the color of the code 15 .
  • the further color representation layer 7 has the task of making the code 15 readable.
  • the further color representation layer 7 also serves as a visual protection for the code 15 if the sealing film 1 according to the invention, including all functional layers 4, is improperly removed from the substrate 2, for example with the aid of a tool. If the further color representation layer 7 is sufficiently opaque, ie not or hardly transparent, the code 15 does not shine through the further color representation layer 7 and can therefore not be read through the back, ie through the further color representation layer 7, of the sealing film 1 according to the invention.
  • the functional layers 4 therefore comprise the first release lacquer layer 8, the first, seen in the first direction 16 Color representation layer 5, the second release lacquer layer 9, the second color representation layer 6, the further release lacquer layer 10, the layer 17 lying behind the further release lacquer layer 10 and the further color representation layer 7.
  • a second exemplary embodiment of the sealing film 1 according to the invention is 2 disclosed.
  • 2 shows a schematic representation of the structural design of the second embodiment of the sealing film 1 according to the invention with the code 15 on the substrate 2.
  • the sealing film 1 according to the invention is in 2 built the same as in 1 with the only difference that the layer 17 lying behind the further release lacquer layer 10 contains no code 15.
  • the code 15 is located on the substrate 2 and is not part of the functional layers 4.
  • the code 15 is covered by the sealing film 1 according to the invention.
  • the code 15 is not visible in the first state 13 and only becomes visible after the carrier film 3 has been detached, ie in the second state 14 .
  • Both the adhesive layer 11 and the layer 17 behind the further adhesion-controlling layer 10 are transparent, at least in the region of the code 15, in order to make the code 15, which is on the substrate 2, visible in the second state 14.
  • the additional color display layer 7 is omitted in this exemplary embodiment.
  • the layer 17 lying behind the further release lacquer layer 10 ensures the effect of the further release lacquer layer 10, because the layer 17 lying behind the further release lacquer layer 10 ensures that the further release lacquer layer 10 is not directly Contact with the adhesive layer 11 comes.
  • the sealing film 1 according to the invention has a tab (not shown) which is connected to the carrier film 3. Said tab makes it easier for a user to pull off the carrier film 3 or to transfer the sealing film 1 according to the invention from the first state 13 to the second state 14.
  • Figure 3a ) to d) show an example of the sealing film 1 according to the invention in the first state 13 ( Figure 3a )) and in the second state 14 after a lawful opening ( 3b) to 3d)).
  • Figure 3a ) to d) cover both the first exemplary embodiment 1 as well as the second embodiment 2 away. Ie it makes for the representations in Figure 3a ) to d) makes no difference whether the code 15 is located on the layer 17 lying behind the further release lacquer layer 10 and is therefore part of the functional layers 4, or whether the code 15 is arranged on the substrate 2.
  • Figure 3a shows a schematic representation of the sealing film 1 according to the invention in the first state 13.
  • the sealing film 1 according to the invention is glued to the, for example, white F2 background 2 with the aid of the adhesive layer 11 and is closed, ie it has not been manipulated beforehand.
  • the entire sealing film 1 according to the invention is, for example, dark gray F1.
  • the dark gray color F1 results from intimate contact between the first color representation layer 5, which is white F2, and the second color representation layer 6, which is black F4.
  • the sealing film 1 according to the invention is in the first state 13 and also in the second state 14 has other colors and color combinations.
  • Figure 3b discloses a schematic representation of a stripped layer 18 in the second state 14 after lawful opening.
  • the peeled off layer 18 is the carrier film 3 including the color representation layers 5, 6 adhering to the carrier film 3.
  • the first release lacquer layer 8 ensures that the color representation layers 5, 6 remain on the residue 19 in those areas 21 which surround the two symbols 12. Accordingly, the two areas 21 surrounding the symbols 12 are dark gray F1 on the residue 19 and transparent F3 on the peeled-off layer 18.
  • the second release lacquer layer 9 separates the first color representation layer 5 and the second color representation layer 6 and ensures that the two symbols 12 are colored.
  • the symbols 12 on the peeled-off layer 18 are therefore white F2 and on the residue black F4.
  • the symbols 12 are in the embodiments of 1 , 2 , 3 and the 4 including in the form of an "X". However, it would of course be possible for the symbols 12 to have any desired shape.
  • the further release lacquer layer 10 is responsible for the code 15 becoming visible. As already written above, it is not relevant for the visualization of Code 15 whether Code 15 according to 1 is arranged on the layer 17 lying behind the further release lacquer layer 10 or whether the code 15 according to 2 is arranged on the substrate 2 below the adhesive layer 11.
  • FIG. 3d shows a schematic representation of a reverse application 22 of the peeled-off layer 18 glued back to the residue 19 in the second state 14 after the lawful opening. It can be seen that the symbols 12 are also visible after the reverse application 22 of the peeled-off layer 18 to the residue 19 . Ie the rear application 22 preceding manipulation of The sealing film 1 according to the invention is indicated by a clear identification of the open state, in that the symbols 12 are also visible after the reverse application 22.
  • the dark gray F1 areas 21 of the residue 19 are covered by the transparent F3 areas 21 of the peeled-off layer 18, the dark gray F1 areas 21 of the residue 18 lighten slightly, as a result of which the areas 21 appear gray F5 after the reverse application 22.
  • the central area in which the code 15 is arranged appears dark gray F1, since the dark gray color F1 of the stripped layer 18 completely covers the code 15.
  • FIG. 4 shows a schematic representation of the structural design of a third embodiment of the sealing film 1 according to the invention with the code 15 within the functional layers 4.
  • a first layer of the sealing film 1 according to the invention, seen in the first direction 16, is a covering paint 24, which is used to mark an area of the code 15 and an area of a tab 23 and to additionally cover the code 15.
  • the carrier film 3 lies behind the covering paint 24 as seen in the first direction 16 and consists of a transparent plastic film.
  • the following functional layers 4 are arranged between the carrier film 3 and the adhesive layer 11 .
  • a laminate adhesive layer 25 is located directly behind the carrier film 3 as seen in the first direction 16 and, in this exemplary embodiment, serves to leave out the tab 23 in order to enable easy removal.
  • the laminate adhesive layer 25 is not applied over the entire area—no laminate adhesive layer 25 is applied to one corner of the sealing film 1 according to the invention, as a result of which the carrier film 3 can be detached particularly well there.
  • the first color representation layer 5 is seen in the first direction 16 behind the carrier film 3. Between the carrier film 3 and the first color representation layer 5 is the first release lacquer layer 8, which comprises at least one silicone and/or at least one wax.
  • a second carrier film 3 is arranged behind the first color representation layer 5 seen in the first direction 16 .
  • the second release lacquer layer 9 is arranged between the first color representation layer 5 and the second carrier film 3 .
  • the further release lacquer layer 10 and the layer 17 lying behind the further release lacquer layer 10 are arranged behind the second carrier film 3 as seen in the first direction 16 .
  • the layer 17 lying behind the further release lacquer layer 10 is transparent and includes the code 15.
  • the code 15 is a QR code.
  • the second color representation layer 6 is arranged directly behind the layer 17 lying behind the further release lacquer layer 10 as seen in the first direction 16 .
  • An additional release lacquer layer 10 is arranged directly behind the second color representation layer 6 seen in the first direction 16 .
  • the further color representation layer 7 is arranged behind the additional release lacquer layer 10 .
  • Figure 5a shows a schematic representation of the third exemplary embodiment in the first state 13.
  • the sealing film 1 according to the invention is glued to the substrate 2 with the aid of the adhesive layer 11 and closed. It has not been manipulated before, which is why no symbols 12 are visible.
  • Figure 5b shows a schematic representation of the peeled-off layer 18 of the third exemplary embodiment in the second state 14 after legitimate opening.
  • the peeled-off layer 18 is the carrier film 3, including the covering color 24 adhering to the carrier film 3 and adhering parts of the first color representation layer 5.
  • Figure 5c shows a schematic representation of the residue 19 of the third exemplary embodiment in the second state 14 on the substrate 2 after the lawful opening.
  • the residue 19 is the parts of the functional layers 4 remaining on the substrate 2, including the adhesive layer 11.
  • Figure 5d shows a schematic representation of the reverse application 22 of the peeled-off layer 18 glued back to the residue 19 in the second state 14 after the lawful opening. It can be seen that the symbols 12 are also visible after the reverse application 22 of the peeled-off layer 18 to the residue 19 . This means that the manipulation of the sealing film 1 according to the invention prior to the reverse application 22 is indicated by a clear identification of the open state, in that the symbols 12 are also visible after the reverse application 22 .
  • Figure 5e shows a schematic representation of the peeled-off layer 18 of the third exemplary embodiment in the second state 14 after an unauthorized opening.
  • the peeled-off layer 18 is the carrier film 3, including the covering ink 24 adhering to the carrier film 3, as well as functional layers 4, which are arranged between the carrier film 3 and the second carrier film 3, and parts of the second color representation layer 6.
  • Fig. 5f shows a schematic representation of the residue 19 of the third exemplary embodiment in the second state 14 on the substrate 2 after the unlawful opening.
  • the residue 19 is the parts of the functional layers 4 remaining on the substrate 2, including the adhesive layer 11.
  • Fig. 5g shows a schematic representation of the reverse application 22 of the peeled-off layer 18 glued back to the residue 19 in the second state 14 after the unlawful opening. It can be seen that the symbols 12' also remain after the reverse application 22 of the peeled-off layer 18 on the residue 19 are visible. This means that in this embodiment the manipulation of the sealing film 1 according to the invention prior to the reverse application 22 is indicated by a clear identification of the unlawfully opened state, in that the symbols 12 ′ are also visible after the reverse application 22 .

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Laminated Bodies (AREA)
  • Adhesive Tapes (AREA)

Claims (14)

  1. Feuille de scellement (1) pour application sur un substrat (2), comprenant une feuille de support (3) et plusieurs couches fonctionnelles (4), lesquelles couches fonctionnelles (4) comprennent au moins deux couches présentant des couleurs (5, 6) et au moins deux couches contrôlant l'adhérence (8, 9), dans laquelle la feuille de scellement (1) présente une couche d'adhésif (11) pour la fixation au substrat (2), dans laquelle les couches fonctionnelles (4) sont disposées entre la feuille de support (3) et la couche d'adhésif (11), dans laquelle la feuille de support (3) peut être séparée au moins en partie des couches fonctionnelles (4), en particulier des deux couches présentant les couleurs (5, 6), pour faire passer la feuille de scellement (1) d'un premier état (13) dans un deuxième état (14), au moins un symbole (12) étant visuellement visible dans le deuxième état, lequel symbole (12) n'était pas visible dans le premier état (13), dans laquelle les au moins deux couches contrôlant l'adhérence (8, 9) sont conçues pour détacher des zones définies des au moins deux couches présentant les couleurs (5, 6) lors de la séparation de la feuille de support (3) et révéler l'au moins un symbole (12), caractérisée en ce que les couches fonctionnelles (4) comprennent au moins une autre couche contrôlant l'adhérence (10) pour révéler au moins en partie au moins une couche (17) située, vue de la feuille de support (3) en direction de la couche d'adhésif (11), derrière l'autre couche contrôlant l'adhérence (10) ainsi qu'un code (15), par la séparation dans le deuxième état (14).
  2. Feuille de scellement selon la revendication 1, caractérisée en ce que la couche (17) située derrière l'autre couche contrôlant l'adhérence (10) comprend au moins un code (15) fait de caractères optiques et/ou de symboles graphiques.
  3. Feuille de scellement (1) selon la revendication 2, caractérisée en ce que la couche (17) située derrière l'autre couche contrôlant l'adhérence (10) est au moins en partie transparente et est entourée par les couches fonctionnelles (4) et en ce que les couches fonctionnelles (4) comprennent au moins une autre couche présentant des couleurs (7), laquelle autre couche présentant des couleurs (7) est disposée entre la couche (17) située derrière l'autre couche contrôlant l'adhérence (10) et la couche d'adhésif (11).
  4. Feuille de scellement (1) selon la revendication 3, caractérisée en ce que les couches fonctionnelles (4) suivantes, au moins, sont disposées sur la feuille de support (3) les unes derrière les autres dans le sens de la couche d'adhésif (11), de préférence les unes immédiatement derrière les autres :
    - une première couche contrôlant l'adhérence (8),
    - une première couche présentant des couleurs (5),
    - une deuxième couche contrôlant l'adhérence (9),
    - une deuxième couche présentant des couleurs (6),
    - l'autre couche contrôlant l'adhérence (10),
    - la couche (17) située derrière l'autre couche contrôlant l'adhérence (10) et
    - l'autre couche présentant des couleurs (7).
  5. Feuille de scellement (1) selon la revendication 1, caractérisée en ce que la couche (17) située derrière l'autre couche contrôlant l'adhérence (10) et la couche d'adhésif (11) sont au moins en partie transparentes, afin de visualiser un code (15) sur le substrat (2) dans le deuxième état (14).
  6. Feuille de scellement (1) selon la revendication 5, caractérisée en ce que les couches fonctionnelles (4) suivantes, au moins, sont disposées sur la feuille de support (3) les unes derrière les autres dans le sens de la couche d'adhésif (11), de préférence les unes immédiatement derrière les autres :
    - une première couche contrôlant l'adhérence (8),
    - une première couche présentant des couleurs (5),
    - une deuxième couche contrôlant l'adhérence (9),
    - une deuxième couche présentant des couleurs (6),
    - l'autre couche contrôlant l'adhérence (10) et
    - la couche (17) située derrière l'autre couche contrôlant l'adhérence (10).
  7. Feuille de scellement (1) selon l'une des revendications 4 ou 6, caractérisée en ce que la première couche présentant des couleurs (5) et la deuxième couche présentant des couleurs (6) sont réalisées dans au moins deux couleurs différentes.
  8. Feuille de scellement (1) selon la revendication 7, caractérisée en ce que l'au moins un symbole (12) est formé dans le deuxième état (14) à partir d'au moins une des deux couleurs.
  9. Feuille de scellement (1) selon la revendication 8, caractérisée en ce qu'est visuellement visible dans l'au moins un symbole (12), dans le deuxième état (14), au moins une couleur qui n'est pas visuellement visible dans une zone (21) qui entoure au moins en partie l'au moins un symbole (12), et/ou vice versa.
  10. Feuille de scellement (1) selon l'une des revendications 4 ou 6, caractérisée en ce que les couches contrôlant l'adhérence (8, 9, 10) sont des couches de vernis antiadhésif (8, 9, 10) diminuant le pouvoir d'adhérence de la première couche présentant des couleurs (5) et de la deuxième couche présentant des couleurs (6) par rapport aux autres couches adjacentes de la feuille de scellement (1).
  11. Feuille de scellement (1) selon la revendication 10, caractérisée en ce que les couches de vernis antiadhésif (8, 9, 10) comprennent au moins un silicone et/ou au moins une cire.
  12. Feuille de scellement (1) selon l'une des revendications 1 à 11, caractérisée en ce que la feuille de support (3) se compose de plastique transparent.
  13. Feuille de scellement (1) selon l'une des revendications 1 à 12, caractérisée en ce qu'il est prévu une patte (23) qui est reliée directement ou indirectement à la feuille de support (3).
  14. Feuille de scellement (1) selon la revendication 13, caractérisée en ce que la patte (23) est formée par une couche propre, qui est entourée par les couches fonctionnelles (4).
EP19170374.3A 2019-04-19 2019-04-19 Feuille de scellement Active EP3726506B1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP19170374.3A EP3726506B1 (fr) 2019-04-19 2019-04-19 Feuille de scellement
US17/603,438 US20220208027A1 (en) 2019-04-19 2020-04-17 Sealing film
CN202080029605.7A CN113728371B (zh) 2019-04-19 2020-04-17 密封膜
PCT/EP2020/060915 WO2020212603A1 (fr) 2019-04-19 2020-04-17 Film de scellement

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP19170374.3A EP3726506B1 (fr) 2019-04-19 2019-04-19 Feuille de scellement

Publications (2)

Publication Number Publication Date
EP3726506A1 EP3726506A1 (fr) 2020-10-21
EP3726506B1 true EP3726506B1 (fr) 2022-10-26

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EP19170374.3A Active EP3726506B1 (fr) 2019-04-19 2019-04-19 Feuille de scellement

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Country Link
US (1) US20220208027A1 (fr)
EP (1) EP3726506B1 (fr)
CN (1) CN113728371B (fr)
WO (1) WO2020212603A1 (fr)

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Publication number Priority date Publication date Assignee Title
EP4125077A1 (fr) 2021-07-26 2023-02-01 Securikett Ulrich & Horn GmbH Élément d'étanchéité plat

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Also Published As

Publication number Publication date
CN113728371B (zh) 2024-02-02
EP3726506A1 (fr) 2020-10-21
WO2020212603A1 (fr) 2020-10-22
CN113728371A (zh) 2021-11-30
US20220208027A1 (en) 2022-06-30

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