EP3192748B1 - Feuille de scellement - Google Patents

Feuille de scellement Download PDF

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Publication number
EP3192748B1
EP3192748B1 EP16151640.6A EP16151640A EP3192748B1 EP 3192748 B1 EP3192748 B1 EP 3192748B1 EP 16151640 A EP16151640 A EP 16151640A EP 3192748 B1 EP3192748 B1 EP 3192748B1
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EP
European Patent Office
Prior art keywords
layer
colour
liquid
sealing film
colour layer
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EP16151640.6A
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German (de)
English (en)
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EP3192748A1 (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
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Securikett Ulrich & Horn GmbH
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Priority to EP16151640.6A priority Critical patent/EP3192748B1/fr
Publication of EP3192748A1 publication Critical patent/EP3192748A1/fr
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Publication of EP3192748B1 publication Critical patent/EP3192748B1/fr
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D55/00—Accessories for container closures not otherwise provided for
    • B65D55/02—Locking devices; Means for discouraging or indicating unauthorised opening or removal of closure
    • B65D55/026—Locking devices; Means for discouraging or indicating unauthorised opening or removal of closure initial opening or unauthorised access being indicated by a visual change using indicators other than tearable means, e.g. change of colour, pattern or opacity

Definitions

  • sealing elements or sealing films are often used, which are mounted in the region of a closure element of the respective container or the bottle and tear or burst in the course of the opening process, so that the successful opening of a container is indexed.
  • closing element of the container or the Bottle may be, for example, a screw cap or a cork.
  • cartons are increasingly glued or sealed to show the user the untouched original state of the content.
  • the sealing film also referred to as sealing element, is always referred to below in connection with sealing purposes, for example of containers such as e.g. Bottles, understood, is therefore primarily not associated with the other meaning of foil elements as information carriers for product information, which provide information about the type of goods or the expiration date, for example. Nevertheless, in addition to its sealing function, the sealing foil can also have other functions, in particular the tamper-proof connection of an authentication feature, such as a hologram or an identity code with a product or its packaging.
  • an authentication feature such as a hologram or an identity code
  • a disadvantage of conventional sealing elements or sealing films lies in the often easy manipulability of the same.
  • conventional sealing films are subject to counterfeiting by piracy or graphic reproduction, so that unlicensed goods can be illegally manufactured with a container having a copied sealing film which is deemed a seal of approval by the unaware buyer and evidence thereof the authenticity of the purchased goods.
  • sealing films which can be applied to a packaging element or a container by means of a pressure-sensitive adhesive layer, in which the pressure-sensitive adhesive layer prevents manual loosening or loosening with a tool such as a knife.
  • a tool such as a knife.
  • Such a preparation of the sealing film coating is accomplished by incorporating therein an adhesive setting layer in the form of the graphic symbol at defined locations.
  • the adhesive setting layer may either be a material that reduces adhesiveness between adjacent layers of the sealing film or that may increase its adhesion.
  • one way to circumvent both conventional sealing elements and sealing films as prepared sealing films provides that the entire sealing element or film is softened with water or an organic solvent, such as alcohol.
  • the substrate on which the sealing element is applied often softened, such as the carton of a carton, or unevenness in the surface of the package are used to weaken the adhesive.
  • the entire sealing element can be removed from the container in a non-destructive manner.
  • the adhesive layer of the sealing film with which the sealing film adheres to the container is dissolved by the water or by the organic solvent, so that the entire sealing film can be removed non-destructively without changing its appearance.
  • sealing elements or sealing films sealed container Since the contents of the container after the detachment of the sealing elements or sealing films can be changed as desired or since the so detached sealing elements or sealing films can be transferred to other containers, such as counterfeits, is for the customer by the sealing elements or sealing films sealed container the authenticity guarantee of the contents of the container is no longer given because manipulated and unmanipulated sealing elements or sealing films do not differ from each other.
  • sealing films applied to the surface of articles for example to packaging, products or documents.
  • the US 4,511,052 a sealing member according to the preamble of claim 1 comprising a shell and a chemical indicator disposed within the shell, which chemical indicator changes its visual appearance when in contact with water.
  • the GB 2 243 825 A discloses a sealing member for a container having a pocket enclosed between a backing layer and an outer transparent layer. In the area of the pocket, a reactive substance is applied to the carrier layer, which oxidizes on contact with the atmosphere.
  • a sealing arrangement for bottles, jars and containers which sealing arrangement is applied to a screwed to the container lid. Over the neck of the container and the lid a film of cellulose material is shrunk, which surrounds the neck like a collar. In order to prevent the film from being softened in water and removed without traces, a sealing element is arranged between the film and the cover, which changes irreversibly when softened.
  • the structure of the sealing film according to the invention can be summarized as follows: On the single- or multi-layered carrier film which is preferably transparent or semitransparent, at least in the area of the graphic object or in an emblem area having the graphic object, so that an observer lies beneath the carrier film Can detect coating, the coating is applied.
  • the coating comprises the ink layer, which is recognizable by the viewer in an application state through the carrier film.
  • the object layer is applied, wherein the material of the object layer with the material of the color layer, such as chemically, in the composite region connects, as will be described in more detail below.
  • the object layer has the shape of the graphic object, wherein the graphic object is approximately a letter ("V”, “O”, “X”), a character string ("VOID”, “OPEN”) or a symbol ( opened padlock) can act. It is also conceivable that the graphic object is an area that is approximately colored. In general, the shape of the graphic object should be chosen such that even an untrained viewer can recognize the object as a clear indication of the manipulation of the sealing film. It does not matter for the operation of the invention whether the graphic object is formed as a positive or negative template through the object layer.
  • the color layer is a special color which changes its optical properties upon contact with the liquid, for example the transparency, the color intensity or the hue. It is also conceivable that the color layer separates on contact with the liquid, the color layer dissolves in the liquid or the color layer is removed or washed away by the liquid from the carrier film.
  • the composite region in which the material of the object layer is connected to the material of the color layer, formed by the chemical or physical interaction of object layer and color layer of a stabilized ink layer, which preferably has the same hue and the same color intensity as the color layer.
  • the stabilized color layer is characterized by the fact that it reacts differently or weaker (if necessary also stronger) on contact with the liquid than the color layer.
  • the hue of the stabilized color layer remains approximately constant or in the event that the color layer or is partially washed away from the liquid, the stabilized ink layer remains at least partially intact.
  • the stabilized color layer in the composite region can be achieved, for example, by sealing the fundamentally porous structure of the color layer, which allows a change in penetration of the liquid, through the object layer in the composite region, so that the pores of the stabilized color layer are sealed and the liquid no longer can penetrate into the stabilized ink layer.
  • the stabilized ink layer can therefore, for example, change its optical properties on contact with the liquid either not or less than the (untreated) ink layer or the liquid can no longer influence the adhesion of the stabilized ink layer to the support layer by the closure of the pores, so the stabilized color layer through the Liquid can not be removed or less strongly from the carrier film.
  • the stabilized ink layer and the (untreated) ink layer change differently upon contact with the liquid.
  • the object layer thus adheres to the pores of the color layer and thus permanently bonds to the color layer in the composite region, wherein the composite region preferably extends over the entire layer thickness of the color layer, so that the color layer and stabilized color layer are approximately the same thickness.
  • the color layer changes while the stabilized color layer changes either less strongly or only very slightly or not at all.
  • the graphic symbol clearly stands out from the surrounding area and can be clearly recognized or perceived by the observer. This ensures that, once the attempt has been made to manipulate the sealing film with the liquid, or once the coating has come in contact with the liquid, the sealing film is irreversibly changed so that the consumer or customer can make out by merely viewing the sealing film, whether the item has been manipulated or has come into contact with the liquid.
  • the same mechanism can also be achieved if the color layer per se does not react with the liquid, but the reaction of the object layer and the color layer produces a composite region which changes upon contact with the liquid.
  • the stabilized ink layer would be that which changes under the influence of the liquid. It is just as possible that both the color layer and the stabilized color layer change upon contact with the liquid, but to such an extent that the graphic object can be clearly perceived after contact with the liquid.
  • color layer and the stabilized ink layer is formed in that the optical change of the color layer or of the color layer and of the stabilized color layer occurs upon contact of the coating with a liquid containing water and / or organic solvents, or if the color layer is at least partially separated from the liquid by a liquid containing and / or organic solvents Carrier film is removed.
  • the special colors mentioned above are suitable for the change of the optical properties of the ink layer and for the removal of the ink layer by the liquid. It is also conceivable that the optical properties of the color layer and the stabilized color layer change to different degrees.
  • a further embodiment of the sealing film according to the invention provides that the color layer of the stabilized ink layer before contact with the liquid optically indistinguishable is and the graphic object is not visually recognizable.
  • an untrained consumer of the article is also prevented from identifying an unmanipulated sealing film due to a graphic object recognizable in the un-manipulated state, mistakenly identifying the article as manipulated.
  • the adhesive layer is partially in each case in the end regions the carrier film or in the regions adjacent to the coating, while the coating is free of the adhesive layer.
  • the adhesive layer surrounds the area in which the graphic object is arranged like a frame. Particularly preferred is an emblem area in which the graphic object is arranged, completely free of adhesive. Because the area with the graphic object or the entire coating is free of adhesive, on the one hand the contact of the coating with liquid is made possible, so that the visually recognizable change can occur.
  • the adhesive agent-forming adhesive such as a heat seal adhesive, the dye layer, or the stabilized dye layer is prevented from being changed to prevent the optical changeability.
  • the entire coating is free of adhesive.
  • the adhesive layer is, based on the article, arranged on the bottom of the carrier film facing the article, as well as the coating itself.
  • a further embodiment provides that the object layer is applied to the color layer from the side opposite the carrier film.
  • the carrier film serves as a protective layer against engagement, since the coating is arranged between the article and the carrier film and is preferably closed on the outer sides by the adhesive layer.
  • the manufacturing process can be further simplified as a result, since in a first step, the color layer can be applied and in the next step, the object layer can be applied from the same direction.
  • Another advantage of applying the color layer on the side facing the object is, inter alia, that the color of the color layer can hardly be changed unintentionally, for example by touching or wiping the sealing element, because the color layer is protected by the carrier film itself.
  • the material used for the object layer is in particular transparent in color, since the use of transparent ink does not or only slightly influences the outward appearance of the stabilized ink layer in the composite region. Therefore, it is provided according to a preferred embodiment of the sealing film according to the invention that the object layer consists of transparent color.
  • the object layer is cured by UV irradiation.
  • the object layer By hardening the object layer by means of ultraviolet, UV, radiation, for example, the pores of the ink layer closed by the object layer in the composite region can be securely closed.
  • the stabilized ink layer for example, by the contact with liquid can not be solved by the carrier film.
  • the object layer consists of UV-curable, transparent paint.
  • a further embodiment variant of the invention provides that the color layer is applied in a planar manner to the carrier film or to another layer of the coating. If the carrier film is designed to be transparent, the area of the article under the sealing film is thus also covered. Furthermore, nationwide coatings can be relatively easily and inexpensively.
  • the color layer consists of a plurality of separate color sections, so that a region formed by a color section is in each case surrounded by a color layer-free region.
  • the color layer not formed continuously flat, but is formed by a plurality of separate, not interconnected color sections.
  • all the color layer having areas are formed similar, for example, as a geometric shape, such as a circle, rectangle or square.
  • the color layer may be formed, for example, as a point cloud, which is distributed uniformly over the emblem area.
  • the advantage in such a design of the ink layer lies in the fact that the stabilization is improved by the object layer in the areas formed by the ink layer, since the material of the object layer can connect to the ink layer from all sides. Thus, the probability of failure of the protection mechanism can be minimized.
  • a simple production of the coating is achieved in a further embodiment in that the color portions are applied in the form of a preferably uniform grid on the carrier film or another layer of the coating. At the same time, this results in a uniform picture for the viewer.
  • the graphic object can be seen particularly clearly after contact of the coating with the liquid, if the ink layer is formed in such a way that the ink layer is at least partially, preferably completely, washed away on contact with the liquid, and the stabilized ink layer is formed in such a way that that the stabilized ink layer remains at least partially, preferably entirely, upon contact with the liquid.
  • the ink layer is formed by the liquid dissolvable while the stabilized ink layer is formed resistant to the liquid.
  • the removal of the color layer is understood as meaning both the removal or washing away of the color pigments by the liquid and the dissolution of the color pigments in the liquid.
  • the stabilized element forming the graphic object remains Color layer, preferably in the color of the color layer, obtained and visible, while the surrounding color layer dissolves. Due to the transparent carrier foil, the graphic object can now be seen from the outside. If the object layer is formed as a negative of the graphic object, the color layer forming the graphic object dissolves, while the stabilized color layer forming the outline of the graphic object, which preferably appears in the same color as the color layer, is retained so that a viewer sees the negative of the graphic object can be recognized by the transparent carrier film.
  • Suitable for the color layer are basically all water-soluble colors or all soluble in organic solvents colors.
  • An example of application of water-soluble inks suitable for the formation of the color layer are the products of the product group "Aquafuge (water reactive) inks"; an example of an application of organic solvent-soluble inks which are suitable for the formation of the color layer are the products of the product group "Chemical reactive inks", both product groups being obtainable via the manufacturer LUMINESCENCE.
  • colors which are reactive with both water and organic solvents are also available.
  • An alternative embodiment variant of the invention provides that the color layer and the stabilized color layer are formed such that the color and / or color intensity of the color layer or the color layer and the stabilized color layer changes upon contact with the liquid. Due to the different changes in the color layer and the stabilized color layer, the graphic symbol becomes recognizable to the observer by the contrast of the two color layers. For example, the color layer may change from a dark blue to a bright blue, or the color of the stabilized color layer may change from black to red.
  • the differences described above in forming the object layer as positive or negative remain the same. It is a myriad of different combinations of Change of colors conceivable, for example light / dark, opaque / transparent or a change of color, just to name a few. It is just as conceivable that only the color layer changes as it is conceivable that only the stabilized color layer changes. Of course, both layers of color can vary from each other.
  • the object layer is formed by the adhesive layer, so that the application of a further layer can be dispensed with.
  • the adhesive layer on the one hand fulfills the function of connection with the object and on the other hand it forms the shape of the graphic object, whereby not necessarily a composite area must arise.
  • the adhesive forces of the adhesive layer cause the color layer in the composite area with the adhesive of the adhesive layer to form a stabilized color layer when the adhesive layer is applied to the color layer.
  • a once opened opening of the sealed by the sealing film article is provided in a particularly preferred embodiment of the invention that at least one additional sealing mechanism is provided, which additional sealing mechanism is irreversibly changed when removing the carrier film from the object.
  • additional sealing mechanism may be sealing mechanisms known per se, such as perforations, splintering paint layers or adhesive systems with different adhesion.
  • the additional sealing mechanism may be achieved by a brittle material or a material made brittle by punches.
  • the additional sealing mechanisms are arranged parallel to the coating in areas adjacent to the coating and do not affect the above-described mode of action. It is also advantageous if the additional sealing mechanism also contains evidence of manipulation by heat.
  • a further particularly preferred embodiment of the invention provides that the additional sealing mechanism is formed as a further coating comprising a further color layer and applied to the carrier film, wherein the further coating adheres at least partially to the surface of the article by means of a further adhesive layer, wherein in defined regions of the further color layer, an adhesion adjustment layer in the form of another graphic object adjoins, whereby the further color layer in these defined areas is imparted a lower or increased adhesion to the carrier film than in those areas which are not covered by the adhesion adjustment layer, so that in the course of the detachment of the carrier film from the object, the defined areas are separable from the further color layer and, due to their adhesiveness, can be adhered either to the carrier film or to the article.
  • This additional sealing mechanism is well known per se and has been developed by the Applicant.
  • Two pamphlets in this regard are the AT 9366 U1 and AT 10078 U1 . Since the function of the additional sealing mechanism depends in particular on adherence of the further adhesive layer to the article, manipulation by means of a liquid represents a particularly great problem.
  • manipulation of the sealing foil by means of a liquid is no longer possible so that a particularly tamper-proof sealing foil is produced.
  • the sealing foil may be applied to an uneven surface, such as a crown cap or a bottle neck. Due to the uneven surface, the liquid reaches the coating arranged on the back side of the sealing film.
  • the sealing film is applied to a flat surface of an article, such as a document or label, the article itself or the portion of the article on which the sealing film is disposed must be porous to permit the passage of liquid.
  • a sealing film according to the invention for sealing an article, for example a container with a closure element, wherein the surface of the article is either uneven, so that the liquid is in contact with the color layer due to the unevenness of the surface or can be brought with the stabilized ink layer or flat and porous, so that the liquid can penetrate through the article and so can be brought into contact with the ink layer or with the stabilized ink layer.
  • a sealing film 1 of the invention comprises a carrier film 3, which is formed in the present embodiment, completely transparent and is preferably made of polyester, polystyrene or PVC, and a on the Support film 3 applied coating 2 and an adhesive layer 7, by means of which the sealing film 1 on an object 11 (see Figures 6a, 6b, 6c ) is at least partially adhered.
  • the coating 2 and the adhesive layer 7 are both arranged on the underside, that is to say the side of the carrier foil 3 facing the article 11.
  • the carrier film 3 can comprise any number of layers.
  • the carrier film 3 may also be formed only partially transparent or semitransparent.
  • the coating 2 comprises at least one color layer 4 and an object layer 5.
  • FIGS. 1a to 1c represent the first exemplary embodiment of the sealing film 1.
  • the ink layer 4 in a central region of the carrier film 3, more precisely in an emblem region 24, directly on the underside of the carrier film 3, ie on the adhesive layer 7 having side of the carrier film 3 applied.
  • the ink layer 4 is designed such that it is completely removed from the carrier film 3 by a liquid, such as water, a liquid containing water or a liquid containing organic solvents.
  • a liquid such as water, a liquid containing water or a liquid containing organic solvents.
  • the color layer 4 has in the present embodiment, the positive shape of a graphic object 6, which is shown for illustration as a letter "O".
  • a graphic object 6 which is shown for illustration as a letter "O".
  • any letters, letter strings, character strings or symbols can serve as a graphical object 6.
  • the words "ORIGINAL” or "CLOSED” and the symbol of a closed padlock are used.
  • the same effect can be achieved if the color layer 4 instead of the positive shape, the negative shape of the graphic object. 6
  • the ink layer 4 may also be applied flat on the carrier film 3.
  • FIGS. 2a to 2c a second exemplary embodiment of the sealing film 1 is shown.
  • an object layer 5 is applied to the carrier foil 3 as part of the coating 2.
  • the object layer 5 directly adjoins the carrier foil 3 and has the negative shape of a graphic object 6, so that the positive shape of the graphic object 6 appears as a recess in the object layer 5.
  • the object layer 5 is formed as a second color layer, which is a, preferably opaque, UV-curable color.
  • the color layer 4 again has the positive shape of the graphic object 6, in which case the letter "V" was chosen for illustration. It understands However, it is self-evident that any letters, letter strings, character strings or symbols can serve as graphic object 6.
  • the words "VOID" or "OPEN" and the symbol of an opened padlock are used.
  • the color of the object layer 5 and the color of the ink layer 4 are selected so that the graphic object 6 is not visible from the outside before contact of the ink layer 4 with the liquid, so that the emblem region 24 presents the viewer as a continuous color surface.
  • the color layer 4 is, as in the first and third embodiments, designed such that it is at least partially removed by the liquid from the carrier film 3.
  • the color layer 4, as in the fourth embodiment is formed such that the color layer 4 changes optically recognizable upon contact with the liquid.
  • Fig. 2c clearly shows that the ink layer 4 has been removed or washed away by the liquid, so that in the emblem region 24 the negative shape of the graphic object 6 formed by the object layer 5 appears, so that the graphic object 6 can be seen by the viewer. Since the graphic object 6, as described above, carries a clear information content, such as "VOID” or "OPEN", it is immediately apparent to the viewer that the sealing film 1 has come into contact with the liquid, so that a successful attempt at manipulation can be detected immediately leaves.
  • VOID a clear information content
  • the object layer 5 is formed in the present embodiment as part of the coating 2, it is conceivable in alternative embodiments that the object layer 5 is not formed as part of the coating 2, but on the top, ie the adhesive layer 7 opposite side of the carrier film. 3 is applied. Similarly, it is also conceivable that the object layer 5 as a layer of the carrier film 3 itself is trained. In all cases described above, the color layer 4 can also be applied flat, for example, the entire underside of the carrier film 3 may have the coating 2, if the object layer 5 is not formed as part of the coating 2. If the object layer 5 is part of the coating 2, the object layer 5 can first be applied to the carrier foil 3 and, in a following step, the color layer 4 applied to the object layer 5 and the free areas of the carrier foil 3, which achieves the same effect.
  • FIGS. 3a to 3c represent a first embodiment of the sealing film 1 according to the invention.
  • the ink layer 4 is applied directly to the carrier film 3 in a central region of the carrier film 3, more precisely in an emblem region 24.
  • a graphic object 6 again the letter "V" has been selected for illustration.
  • the adhesive layer 7 is provided only in sections in the present embodiment, namely in the upper and lower end portion of the sealing film 1.
  • the coating 2 is not provided with adhesive. In alternative embodiments, it can be provided that the adhesive layer 7, the coating 2 and the emblem region 24 laterally framed.
  • the object layer 5 is formed by the adhesive layer 7.
  • a heat-seal adhesive or "hot melt adhesive” is used in all variants, preferably, which is activated by a subsequent heat treatment.
  • a rubber gum which can be activated by water contact or other solvent or reaction adhesives.
  • a cover color layer 10 is provided between the sections of the adhesive layer 7 and the transparent carrier film 3, outside the emblem area 24, which has the same color and color intensity as the one Color coat 4 itself.
  • Fig. 3a shows the different layers of the sealing film 1 in a preferred application order.
  • the ink layer 4 and the cover ink layer 10 are applied at the same time, it is also conceivable that the two layers are applied one behind the other.
  • the part of the coating 2 to which the adhesive layer 7 is applied can also be formed directly from the ink layer 4.
  • Fig. 3b shows the sealing film 1 before manipulation or the contact of the coating 2 with liquid, on the one hand in a frontal view from above, ie from the viewpoint of an observer, and on the other hand shows the structure of the sealing film 1 in cross section. Since the carrier foil 3 is transparent, but the color layer 4 is opaque, the sealing foil 1 appears in the color of the color layer 4.
  • the materials of the ink layer 4 and the object layer 5 are selected such that the object layer 5, the color layer 4 stabilized in a composite region 8, so that a stabilized ink layer 9 is formed. Since the object layer 5 has the positive shape of the graphic object 6, the composite region 8 and the stabilized ink layer 9 also have the shape of the graphic object 6.
  • the stabilized ink layer 9 is optically indistinguishable from the (unchanged) ink layer 4, so that the graphic object 6 can not be perceived by a viewer prior to the contact of the coating 2 with the liquid.
  • the object layer 5 is preferably made of transparent paint. If the sealing film 1 thus has a continuous ink layer 4, it can be ruled out due to the functionality described below that the coating 2 was brought into contact with the liquid or an attempt was made to manipulate the sealing film 1 with the liquid.
  • the layer thicknesses of the individual layers shown in cross-section are not drawn to scale for better traceability.
  • the cross section of the sealing film 1 clearly shows that the two sections of the adhesive layer 7 are not applied to the ink layer 4 itself, but to the top ink layer 10.
  • the color layer 4 and the object layer 5 are arranged in an emblem area 24 in which the graphic object 6 appears after the contact of the coating 2 with the liquid (see Fig. 3c ).
  • the object layer 5 protrudes beyond the color layer 4.
  • the thickness of the object layer 5 may be selected so that it completely bonds to the color layer 4 in the composite region 8 and thus only the stabilized color layer 9 is present after application .
  • the stabilized ink layer 9 or the composite region 8 is in the Figures 2 and 3 illustrated by the combination of the textures of object layer 5 and color layer 4.
  • the color layer 4 and the stabilized color layer 9 in the present exemplary embodiment are designed so that the color layer 4 is completely removed by the liquid from the carrier film 3, so that the graphic object 6 is optically recognizable after contact of the coating 2 with the liquid.
  • This functionality is achieved in the present embodiment in that the (unchanged) ink layer 4 dissolves in contact with the liquid in the liquid or is removed or washed away by the liquid.
  • the color layer 4 consists of water-soluble or alcohol-soluble paint, which has an open-pore structure, so that the liquid can penetrate into the paint layer 4 and dissolve or ablate.
  • the closure effect can be further enhanced by the fact that the material of the object layer, preferably the transparent color, is UV-curable and the object layer 5 or the stabilized ink layer 9 has cured by means of UV irradiation.
  • the color layer 4 consists of a water-soluble color, in particular a color of the product group "Aquafuge (water reactive) inks" from LUMINESCENCE, while the object layer 5 consists of UV-curable, transparent ink.
  • Figure 3c now shows the same view as FIG. 3b but after contact of the coating 2 with the liquid.
  • the graphic object 6 formed by the stabilized ink layer 9 appears in the color of the ink layer 4, while the (unchanged) ink layer 4 located in the emblem region 24 outside the composite region 8 dissolved, as can be seen in particular in cross section.
  • the size coat layer 10 that surrounds the emblem area 24 is also preserved.
  • the connection of the adhesive layer 7 with the color layer 4 also leads to the previously described stabilization of the color layer 4 in the adhesive provided.
  • the sealing film 1 is attached to the article 11 to be sealed such that the sealing film 1 at least partially adheres to the surface of the article 11 by means of the adhesive layer 7.
  • a transport foil is attached to the adhesive layer 7 in a conventional manner, from which the sealing foil 1 can be pulled off.
  • FIGS. 4a to 4c show the second embodiment of the invention according to the invention, which differs in some details from the first embodiment of the invention described above. In the following, only the differences between the variants will be discussed, since the basic structure is very similar. It goes without saying that the individual different design options can be combined with each other.
  • the object layer 5 has the shape of the negative of the graphic object 6, so that the graphic object 6 is formed as a recess in the object layer 5. Since no further color layer is applied outside the emblem area 24, in the front view in FIG Fig.
  • FIG. 1b again clearly shows that the sections of the adhesive layer 7 as well as the ink layer 4 or the stabilized ink layer 9 directly adjoin adjoin the carrier film 3.
  • the composite region 8 occupies a majority of the area of the emblem region 24, while the (unchanged) ink layer 4 has the positive shape of the graphic object 6.
  • the ink layer 4 and the stabilized ink layer 9 are formed such that upon contact of the coating 2 with the liquid, the ink layer 4 and the stabilized ink layer 9 optically change such that the graphic object 6 after contact of the coating 2 with the liquid is visually recognizable.
  • This effect is achieved in that the color layer 4 changes its color upon contact with the liquid instead of dissolving, while the stabilized ink layer 9 remains unchanged in the composite region 8.
  • This effect can also be achieved, inter alia, by the use of a color with chemical additives which cause discoloration on contact with the liquid.
  • the color layer 4 of the second embodiment also has a porous surface. By applying the object layer 5, this porous surface, as described above, sealed or sealed, so that the stabilized ink layer 9 in the composite region 8 can not react with the liquid.
  • Changing the color can be either a change in color itself, such as from blue to red, a change in color intensity, such as from light to dark, or a change in transparency, such as opaque to transparent, or any combination of Effects act.
  • the graphic object 6 appears in the badge area 24 by the color layer 4 changing color while the stabilized color layer 9 maintains its original color.
  • the color layer 4 is applied flat, so that at least in the emblem area 24, a continuous, colored surface is formed.
  • the color layer 4 consists of a plurality of separate color sections 4a. These color sections 4a are applied in the form of a preferably uniform grid on the carrier foil 3 or a further layer of the coating 2. In other words, each area formed by a color section 4a is surrounded by a color layer-free region, which is why the carrier film 3 is visible in the present example.
  • the distances between the color sections 4a and the dimensions of the color sections 4a are chosen to be similar, so that a uniform texture of the color layer 4 can be recognized by the viewer.
  • the color portions 4a are evenly distributed over the emblem area 24.
  • the color portions 4a in the present embodiment have the shape of circles, so that the surface appears to the viewer as a dotted texture. Of course, other geometric shapes and textures are possible.
  • the advantage of the rasterized applied color layer 4 lies in the fact that the object layer 5 can optimally connect to the color layer 4 in the composite region 8, since the material of the object layer 5, for example the transparent color, in each of the regions formed by the color layer 4 Entire exposed surface can penetrate, so from all sides except for the voltage applied to the support film 3 surface.
  • the stabilized ink layer 9 in contact with the liquid remains unchanged, it is of course just as conceivable that the stabilized ink layer 9 changes, but different from (unchanged) ink layer 4. Equally conceivable, however, that the (unchanged) ink layer 4 remains unchanged upon contact with the liquid and through the connection with the object layer 5 in the composite region 8, the stabilized ink layer 9 is changed such that an optical change of the stabilized ink layer 9 occurs in contact with the liquid.
  • the term destabilized ink layer 9 is more appropriate, so that in this context the term stabilized ink layer 9 is to be understood as a destabilized ink layer 9.
  • FIGS. 6a to 6c different objects 11, more precisely containers 12 in different container shapes, each with a matching closing element 13, are shown schematically in a sealing foil 1 according to the invention.
  • container 12 may be, for example, a bottle made of glass with a closure element 13 designed as a screw cap.
  • a cavity is formed between the rear side of the sealing film 1 having the coating 2 and the surface of the closure element 13, into which the liquid can penetrate in order to allow the coating 2 to come into contact with the liquid.
  • a completely tight seal of the cavity is not preferable because the sealing film 1 in this case could contact the liquid only after removal.
  • dissolving the adhesive layer 7 through the liquid causes liquid to enter the cavity before the sealing film 1 is completely peelable.
  • an in Fig. 6b represented, equipped with a designed as a cork closure element 13 sealed as a bottle container 12 equipped with a sealing film 1 according to the invention.
  • the sealing film 1 is cap-shaped and can thus be easily placed on the closure member 13 to be subsequently shrunk onto the bottle neck and the closure member 13 by heat treatment.
  • sealing film 1 in the present embodiments, while always shown on a both portions of the container 12 and the bottle neck and portions of the closure element 13 overlapping position, but it may also be sufficient, the sealing film 1 off the Closure element 13, eg exclusively on the bottleneck or on the bottle belly, or even exclusively on the closure element 13, that is to say without contacting the actual body of the container 12.
  • the sealing film 1 according to the invention can also be applied to a flat object 11, such as a folding carton, a document or another surface.
  • a flat object 11 such as a folding carton, a document or another surface.
  • the coating 2 in the state of use is spaced from the surface of the article 11, so that a cavity is formed in which the liquid can enter.
  • the article 11 or the surface of the article 11 on which the sealing film 1 is applied is porous or uneven, so that the liquid can pass through the surface of the article 11 or pass along the unevenness of the surface into cavities to be brought into contact with the coating 2.
  • Fig. 7 shows a sealing film 1 according to the invention, which in addition to the inventive liquid-responsive coating 2 still has two additional sealing mechanisms 14,15.
  • the first additional sealing mechanism 14 is a mechanism that has a further coating 16 and is based on the differential adhesion of paint to an adhesion control layer 20. This mechanism will be discussed later in the FIGS. 8 and 9 discussed in more detail.
  • the second additional sealing mechanism 15 is a perforation 23 which ruptures upon opening.
  • the illustration is merely intended to indicate the multiplicity of different combinations, since as a rule only one additional sealing mechanism 14, 15 is provided, which is arranged parallel to the coating 2 on the carrier foil 3.
  • Alternative additional sealing mechanisms include, for example, splintering coatings. In order to make a previous heat effect recognizable, it is also possible to provide control features of colors which irreversibly indicate heating, for example, above 70 degrees Celsius.
  • FIG. 9 shows schematically the structure of the carrier film 3 and the surface of the article 11 and a further adhesive layer 18 located further coating 16.
  • the proportions of the layer thicknesses shown correspond to it not the real conditions in practice, but serve only a better vividness of the structural structure of the further coating 16.
  • the further adhesive layer 18 adheres, as well as the adhesive layer 7 at least partially on the surface of the article 11, but is generally flat on the bottom of the further coating 16 applied.
  • the positive and negative forms of the further graphic object 21 are applied by means of the adhesion setting layer 20 already mentioned above, in the present case by means of a so-called release varnish, preferably transparent silicone-containing varnish.
  • the adhesion-adjusting layer 20 it is also possible to use alternative materials or material mixtures as the adhesion-adjusting layer 20, for example oily pastes of organic or synthetic origin.
  • the adhesive setting layer 20 has suitable aversive, adhesion-reducing properties.
  • the surface tension of that layer or of the substrate on which it is applied is thus reduced to a precisely measured extent, so that adjacent layers of the further coating 16 are only to a lesser extent liable, for example beaded.
  • the extent to which that surface tension is reduced can be exactly controlled by the choice of the concentration of the silicon component in the adhesive adjustment layer 20 or by the weighting of the color amount. In the specific case, this ratio is set such that a layer of the further coating 16 adjoining the adhesive setting layer 20 barely adheres to it, but nevertheless has the lowest possible degree of adhesion.
  • An intermediate layer 19 of transparent white lacquer which is preferably likewise UV-curing, is optionally arranged between the upper adhesive setting layer 20 closer to the carrier film 3 and the further color layer 17.
  • a UV-curing lacquer it is of course also possible to use water-based or alcohol-based paints as further color layer 17 and as intermediate layer 19.
  • a bonding layer 22 may be provided between the carrier film 3 and the upper adhesive setting layer 20.
  • the further color layer 17 and the intermediate layer 10 inextricably connect to that area of the further adhesive layer 18 which is not covered by the adhesion adjustment layer 20.
  • the further color layer 17 and the intermediate layer 19 remain liable to detach easily due to the aversive properties of the adhesion adjustment layer 20.
  • the adhesive setting layer 20 arranged on the opposite side of the further ink layer 17 facing the carrier film 3 has a recess in the paint in a region which is substantially congruent with the further graphic object 21.
  • the further coating 16 thus form the further color layer 17 and the intermediate layer 19 those layers at which the overlying and underlying layers in case of detachment of the sealing film 1 divide from each other, parts of the further color layer 17 separate and henceforth either on the further adhesive layer 18, the background Couleur Mrs or the surface of the article 11 or on the Carrier film 3 or on these arranged further layers remain.
  • the embodiment of the positive form or the negative mold having adhesive adjustment layer 20 thus decides which defined areas of the further color layer 17 and the intermediate layer 19 are detached from the further adhesive layer 18 and which defined areas of the further color layer 17 and the intermediate layer 19 from then on Carrier film 3 remain adherent.
  • the further ink layer 17 or the intermediate layer 19 has less adhesion than the carrier film 3.
  • the ink layer 17 or the intermediate layer 19 adheres better on the additional adhesive layer 18 than on the formed as a negative mold adhesion adjustment layer 20.
  • the further graphic object 21 is formed in the color of the further ink layer 17 after opening.
  • the sealing film 1 according to the invention has been peeled off in the manner described, it is no longer possible to undo this process, since even if an illegitimate re-adhering of the stripped carrier film 3 to the article 11 occurs, the further graphic object 21 remains adhering to the further color layer 17 on the carrier film 3 on the one hand and the further adhesive layer 18 on the other hand or the resulting Air gap and changed refraction of light remains clearly contrasted with each other and such an attempt to "cover up" opening is unsuccessful.
  • the further graphic object 21, just like the graphic object 6, will be designed in the form of a meaningful lettering or symbol, for example in the form of the English word "VOID” or "OPEN".

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Details Of Rigid Or Semi-Rigid Containers (AREA)
  • Laminated Bodies (AREA)

Claims (17)

  1. Film de scellement (1) comprenant
    - un film de support (3) en une ou plusieurs couches, de préférence transparent au moins par endroits, et
    - une couche d'adhésif (7) appliquée au moins par endroits, directement ou indirectement, sur une face du film de support (3) afin de fixer au moins partiellement le film de scellement (1) sur une surface d'un objet (11), par exemple d'un récipient (12) muni d'un élément de fermeture (13),
    dans lequel un revêtement (2) comprenant au moins une couche de couleur (4) est disposé sur le film de support (3) sur la même face du film de support (3) que la couche d'adhésif (7),
    caractérisé en ce que
    le revêtement (2) présente une couche d'objet (5) sous la forme d'un objet graphique (6) et en ce que la couche d'objet (5) stabilise la couche de couleur (4) dans une zone de liaison (8), de sorte que la zone de liaison (8) présente la forme de l'objet graphique (6),
    et en ce que la couche de couleur (4) et la couche de couleur stabilisée (9) sont conformées de telle manière qu'en cas de contact du revêtement (2) avec un liquide, la couche de couleur (4) ou la couche de couleur (4) et la couche de couleur stabilisée (9) subissent une modification visible en sorte que l'objet graphique (6) devient visible après le contact du revêtement (2) avec le liquide ou que la couche de couleur (4) est au moins en partie éliminée du film de support (3) par le liquide de telle manière que l'objet graphique (6) devient visible après le contact du revêtement (2) avec le liquide.
  2. Film de scellement (1) selon la revendication 1, caractérisé en ce que la couche de couleur (4) et la couche de couleur stabilisée (9) sont conformées de telle sorte que la modification visible de la couche de couleur (4) ou de la couche de couleur (4) et de la couche de couleur stabilisée (9) se produise lors du contact du revêtement (2) avec un liquide contenant de l'eau et/ou des solvants organiques ou que la couche de couleur (4) soit éliminée au moins partiellement du film de support (3) par un liquide contenant de l'eau et/ou des solvants organiques.
  3. Film de scellement (1) selon la revendication 1 ou 2, caractérisé en ce que la couche de couleur (4) n'est pas discernable visuellement de la couche de couleur stabilisée (9) avant le contact avec le liquide et l'objet graphique (6) n'est pas visible.
  4. Film de scellement (1) selon l'une des revendications 1 à 3, caractérisé en ce que la couche d'objet (5) est appliquée sur la couche de couleur (4) par le côté faisant face au film de support (3).
  5. Film de scellement (1) selon l'une des revendications 1 à 4, caractérisé en ce que la couche d'objet (5) se compose d'une couleur transparente.
  6. Film de scellement (1) selon l'une des revendications 1 à 5, caractérisé en ce que la couche d'objet (5) est durcie par exposition aux UV.
  7. Film de scellement (1) selon l'une des revendications 1 à 6, caractérisé en ce que la couche de couleur (4) est appliquée sur la surface du film de support (3) ou d'une autre couche du revêtement (2).
  8. Film de scellement (1) selon l'une des revendications 1 à 6, caractérisé en ce que la couche de couleur (4) se compose de multiples parties de couleur (4a) séparées les unes des autres, de sorte que chaque zone formée par une partie de couleur (4a) soit entourée par une zone sans couche de couleur.
  9. Film de scellement (1) selon la revendication 8, caractérisé en ce que les parties de couleur (4a) sont appliquées sous la forme d'une matrice, de préférence régulière, sur le film de support (3) ou une autre couche du revêtement (2).
  10. Film de scellement (1) selon l'une des revendications 1 à 9, caractérisé en ce que la couche de couleur (4) est conformée de telle sorte que la couche de couleur (4) soit au moins partiellement éliminée, de préférence totalement, lors du contact avec le liquide,
    et en ce que la couche de couleur stabilisée (9) est conformée de telle sorte que la couche de couleur stabilisée (9) soit au moins partiellement conservée, de préférence totalement, lors du contact avec le liquide.
  11. Film de scellement (1) selon l'une des revendications 1 à 9, caractérisé en ce que la couche de couleur (4) et la couche de couleur stabilisée (9) sont conformées de telle sorte que la couleur et/ou l'intensité de couleur de la couche de couleur (4) ou de la couche de couleur (4) et de la couche de couleur stabilisée (9) changent lors du contact avec le liquide.
  12. Film de scellement (1) selon l'une des revendications 1 à 11, caractérisé en ce que le revêtement (2) est entièrement dépourvu d'adhésif.
  13. Film de scellement (1) selon l'une des revendications 1 à 11, caractérisé en ce que la couche d'objet (5) est formée par la couche d'adhésif (7).
  14. Film de scellement (1) selon l'une des revendications 1 à 13, caractérisé en ce que la couche de couleur (4) est directement contiguë du film de support (3).
  15. Film de scellement (1) selon l'une des revendications 1 à 14, caractérisé en ce qu'au moins un mécanisme de scellement supplémentaire (14, 15) est prévu, lequel mécanisme de scellement supplémentaire (14, 15) est modifié de façon irréversible lorsque le film de support (3) est détaché de l'objet (11).
  16. Film de scellement (1) selon la revendication 15, caractérisé en ce que le mécanisme de scellement supplémentaire (14) est formé par un autre revêtement (16) incluant une autre couche de couleur (17) et appliqué sur le film de support (3), lequel autre revêtement (16) adhère au moins partiellement à la surface de l'objet (11) au moyen d'une autre couche d'adhésif (18),
    une couche d'ajustement de l'adhérence (20) prenant la forme d'un autre objet graphique (21) est contiguë de zones définies de l'autre couche de couleur (17), de sorte que dans ces zones, une adhérence plus faible ou plus forte par rapport au film de support (3) que dans les zones non couvertes par la couche d'ajustement de l'adhérence (20) est transmise à l'autre couche de couleur (17), de sorte que lorsque le film de support (3) se détache de l'objet (11), les zones définies de l'autre couche de couleur (17) peuvent se séparer et, du fait de leur adhérence, peuvent adhérer soit au film de support (3), soit à l'objet (11).
  17. Utilisation d'un film de scellement (1) selon l'une des revendications 1 à 16 pour le scellement d'un objet (11), par exemple d'un récipient (12) muni d'un élément de fermeture (13),
    dans laquelle la surface de l'objet (11)
    - soit a une structure irrégulière, de sorte que le liquide peut être amené au contact de la couche de couleur (4) ou de la couche de couleur stabilisée (9) par les irrégularités de la surface,
    - soit est lisse et poreuse, de sorte que le liquide peut pénétrer à travers l'objet (11) et venir ainsi en contact avec la couche de couleur (4) ou la couche de couleur stabilisée (9).
EP16151640.6A 2016-01-18 2016-01-18 Feuille de scellement Active EP3192748B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP16151640.6A EP3192748B1 (fr) 2016-01-18 2016-01-18 Feuille de scellement

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP16151640.6A EP3192748B1 (fr) 2016-01-18 2016-01-18 Feuille de scellement

Publications (2)

Publication Number Publication Date
EP3192748A1 EP3192748A1 (fr) 2017-07-19
EP3192748B1 true EP3192748B1 (fr) 2018-07-25

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EP (1) EP3192748B1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20230118781A1 (en) * 2021-10-15 2023-04-20 Studio Eight LLC Absorptive reusable coaster
CN115512284B (zh) * 2022-09-21 2023-04-07 江阴市花园铝塑包装有限公司 塑料瓶牛奶封口膜完整分析系统及方法

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4511052A (en) * 1983-03-03 1985-04-16 Klein Howard J Container seal with tamper indicator
GB2140786A (en) * 1983-06-01 1984-12-05 Viscose Closures Ltd Tamper-indicating closures incorporating secondary closures
GB2243825B (en) * 1990-04-30 1994-02-16 Robert Peter Sunman Tamper evident sealing member and container sealed therewith
US20060234014A1 (en) * 2005-04-14 2006-10-19 Liu Yaoqi J Patterned adhesives for tamper evident feature
AT9366U1 (de) 2006-02-06 2007-08-15 Securikett Ulrich & Horn Gmbh Verschlussetikett
AT10078U1 (de) 2007-04-02 2008-08-15 Securikett Ulrich & Horn Gmbh Versiegelungsfolie

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

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