WO2019029950A1

WO2019029950A1 - Packaging and closure for a packaging

Info

Publication number: WO2019029950A1
Application number: PCT/EP2018/069204
Authority: WO
Inventors: Steffen Reisert
Original assignee: Sig Technology Ag
Priority date: 2017-08-07
Filing date: 2018-07-16
Publication date: 2019-02-14
Also published as: EP3665093C0; EP3665093A1; EP3665093B1; DE102017117898B3

Abstract

The invention relates to a packaging (2), in particular packaging for food products, comprising a packaging material (4), at least one actuating element (8) arranged on the packaging material, and at least one at least electrical or electrochemical functional element (14) mounted on the packaging material and/or the actuating element.

Description

Pack and closure for one pack

The article relates to a package as well as a closure of a package.

Packaging can be done in different ways and in different ways

Materials are produced. A widespread possibility of their production consists in producing packaging from a packaging laminate with a laminate constructed on a fibrous material, in particular cardboard-based carrier layer, by means of folding and sealing processes. For this purpose, essentially two methods have been established.

In a first method is one, preferably from a roll

unwound packing laminate in the Abiaufrichtung (longitudinal direction) formed a tube, while the resulting pack is closed along its longitudinal seam usually by introducing a sealing strip. In this tube, the product to be protected by the resulting pack is filled and the filled

Hose at predetermined points transversely to the direction sealed in portions and separated. The resulting semi-finished composite packages ("cushions") are used to produce finished composite packaging by means of folding and other sealing processes.

In a second method, individual blanks are produced from the packaging material, which is also initially present as a package laminate, by longitudinal and / or transverse cutting, from which by means of folding and further steps, e.g. Seal along sealing edges first a packing jacket and finally a

Packaging is created. This production method has the advantage, among other things, that the blanks and packing shells are very flat and can thus be stacked to save space. In this way, the blanks or packing shells on be made in a different location, as the folding, sealing and filling of the packaging coats is done. Here, too, laminates (= composites) are used which build on a carrier layer which has a fibrous material, in particular cardboard.

Such packaging is widely used, especially in the food industry. Both methods can be used representationally to form a package and thus form part of the disclosure of the subject. Depending on whether a composite package should provide protection for a few days to a few weeks for a so-called fresh-filled product, or whether it contains a "germ-free" and aseptic-filled food containing at least one liquid portion over a long period of time

To protect environmental conditions, sometimes arise very different requirements.

For a freshly filled product, even if it is a so-called "extended shelflife product", the period in which the contents of the

Composite packaging is very clear and takes between a few days to several weeks. But sprinkle mostly the properties of the

Product itself quite strong. For example, the bacterial load affecting the product fluctuates significantly from batch to batch of the same product, so that the initial conditions are difficult to grasp. In a "germ-free" and bottled under aseptic conditions product, however, are quite different problems. Although you can find here defined conditions, to the most ten thousand or even more

Ten thousand, composite packaging arising during one hour of production on a single filling machine. However, the individual composite packages are then subjected to different stresses in their continued existence, so that the burdens for the product to be protected, for example, through transport and storage conditions, over the long period of up to one year or even longer in each case can hardly be predicted.

In general, prolonged protection of a foodstuff is said to occur when the product is not chilled in its full quality for months in the market

Composite packaging can be protected. The product is then in the

Generally aseptically filled in the resulting composite packaging. For H-milk and juices can then be often assumed that the content of the

Composite packaging over a period of up to one year, sometimes even beyond durable.

In order to protect the consumer from consuming a food which is harmful to health, the legislator, despite the above-mentioned, almost contradictory problems, prescribes a uniform approach, namely the labeling of the composite packaging with a so-called

"Date of minimum durability" The manufacturer must use this concept to ensure that the product contained in the composite packaging is harmless to health until the expiration date and, if indicated on the package, its quality is at least equal to the nutritional value indicated However, specifying the best before date means that most consumers are no longer self-employed in the product today After the expiry date, the unopened composite packaging is usually discarded, however, as the food packages are usually disposed of before the end of the shelf life

Shelf life dates open, conventional packs offer the After first opening, consumers will not be able to assist with regard to the shelf life of the product in the package. Even if the packages in question are relatively small containers, the

Package contents - depending on the product - within a few days or weeks

be used up.

In itself, it is already known from WO 2012/017244 Al to design the opening element of a pack of the type in question in such a way that it contains an adjustable display for displaying the days since the first opening. However, such an ad requires the assistance of the consumer, the ad is not from

Consumer adjusted daily, is also this already known display mode without any value. Furthermore, manipulations (consciously or unconsciously) can not be reliably prevented. Publication EP 2 071 496 A1 discloses a method for the production of a packaging material in which information about a packaging and a container can be obtained by means of a radio-readable memory, in particular an RFID chip

Product can be stored. The information may e.g. contain information on a best-before date.

The problem with these functional elements, such as a radio-readable memory, however, is that they are activated from the time of delivery. Therefore, it is necessary to keep the functional elements active for a very long time. Especially for products with very long shelf life data, especially if they have been bottled aseptically, periods of up to one year and longer may be necessary. However, the expiration date is often highly dependent on the time of opening the package. Once the consumer opens the pack, germs get to the bottled food and the shelf life is then severely limited. In this case, the previous solutions do not help, since they know only the time of filling, but not the time of opening the pack. For this reason, the object was the object to ensure the functionality of a functional element at a consumption time of a bottled Guts. This object is achieved by a pack according to claim 1 and a closure according to claim 16. The package may be a package for foods having at least one liquid component. The packaging material of the package may be a composite material comprising a plurality of layers of different materials, including at least one carrier layer of paper, paperboard, cardboard or other fibrous material and at least one inner and one outer layer of plastic. In addition - but only optional - a metallic layer, in particular an aluminum layer may be present. It has been recognized that activating a functional element may be accomplished by changing an electrical or electrochemical condition. This change can be made by a consumer-triggered action. In particular, this activation (or a deactivation, for example the switching off of a signal) can be effected by an actuation of a closure element. The change in the electrical or electrochemical state can be effected directly or indirectly (eg by intermediate steps or with a time delay).

For example, as will be explained in more detail below, the

Functional element an electrical, electronic or electrochemical

Be functional element. An electrical element is understood to be an element in which a voltage occurs at least in the millivolt range and / or a current occurs at least in the milliampere range. Alternatively or additionally, the functional element of the pack or of the closure may be a chemical functional element and / or a biological functional element. In this case, a relative movement between the actuator and the changes

Packaging material a chemical and / or biological state of the functional element. An electrical functional element may for example be an antenna which is arranged in or on the packaging material. A change in an electrical state, for example, consist in that an antenna with a sensor through the

Relative movement is connected. Then, the antenna can be electrically powered by the sensor and thus, for example, send a sensor reading.

An electronic functional element may for example be a sensor which is arranged in or on the packaging material and, for example, in direct and indirect contact with the packaged goods. A change in the state of the

Functional element may mean that the sensor is connected, for example, with an electrochemical cell, via which the sensor is supplied with electrical energy. Also, connection with a processor or the like may be effected by the relative movement, so that the sensor starts to operate.

However, a change in an electrical state may also exist, for example, in the disconnection of a connection. For example, two conductors of an antenna may be shorted so that the antenna can not spark. By opening this short circuit, the antenna can be connected to a processor, so that the processor can emit signals via the antenna or via the

Antenna can be read out. This opening can be effected by the relative movement.

An electrochemical functional element may, for example, comprise a chemical cell in which a chemical reaction takes place after activation. One such reaction may be, for example, a redox reaction, in particular an exothermic reaction. An electrochemical state may be, for example, an activation state of an electrolyte. For example, it is possible to activate a chemical reaction that is irreversible. Once the reaction has started, it can run to the consumption of the reactants. The relative movement can activate this process. The actuating element can be arranged on the packaging material. The actuator may be, for example, a closure element, a straw, a departure tab, a sticker or the like. This is preferred

Actuator disposed on an outer layer of the packaging material.

Also, the functional element may be arranged on the actuating element or the packaging material. If the functional element is arranged on the packaging material, this can be arranged either on an outer or an inner layer of the packaging material. The functional element can also be arranged between two layers of the packaging material if the packaging material is a multilayer laminate. The functional element or parts of the functional element can be arranged on each of the individual layers of the packaging material. It is also possible that the functional element is multi-part and has, for example, a sensor arranged inside the package. The sensor can preferably be arranged in the region of an inner cover layer. A second element can be, for example, an antenna connected to the sensor, which is preferably arranged in the region of a carrier layer or an outer cover layer. A relative movement between the actuating element and the packaging material can be effected, for example, by using a closure element, e.g. a lid is rotated on a closure, a closure element is torn from the package, a tab is torn from the package, a tab is folded over, a label is peeled off the package, or the like. At the moment in which the relative movement takes place, there is a change in the electrical, electronic and / or electrochemical state of the

Functional element.

As already explained, the packaging material can be formed from a packing laminate. The actuator is preferably disposed on an outer layer of the package laminate, but may be disposed between outer layers. Also the actuating element can be arranged in or on a closure, in particular a rotary closure.

For example, a packing laminate (hereinafter also referred to as packaging material) is produced as a web product. This can be formed as a composite of one or more thin layers comprising at least one carrier layer, a barrier layer and a cover layer and an outer layer. The outer layer can also be referred to as a cover layer. The exact structure of the laminate (composite) usually depends essentially on the desired degree of protection. Thus have laminates (composites), which are used to produce a packaging for a

long-term protection of the at least partially pourable, pasty, and / or liquid product to be stored in it, an additional gas barrier forming barrier layer, especially if the product or parts of the product are sensitive to air, in particular to oxygen.

The functional element may be an electrical, electronic, chemical and / or electrochemical element. An electrical functional element may contain electrical as well as electronic components. According to one embodiment, the first functional element has a sensor. According to one embodiment, the electrical element has a

Transmitter and / or an antenna on.

The antenna (antenna unit) may comprise at least one conductor track, preferably in the form of a conductor spiral or conductor coil, and / or connections for connecting the antenna unit to a chip unit. Also, the antenna unit and the chip unit can be arranged on a common carrier. The antenna unit allows the reading of the stored information of the chip unit. In this case, preferably radio antennas are meant, as typically in RFID (Radio

Frequency Identification) transponders or NFC (Near Field Communication) tags are used. In particular by inductive coupling readable elements can be considered as an antenna unit in the present sense. Furthermore, it may be expedient if the antenna unit is a carrier element for

Recording the trace includes. The transmitter and / or the antenna may be part of a transmitting and

Receiving unit be adapted to data, signals and / or energy contactless or wireless unidirectional, but preferably also to transmit bidirectional.

The functional element can be equipped with a memory. Memory is to be understood as a data memory. It is a storage medium which serves to store electronic data. The data memory can be designed either as a volatile memory or as a non-volatile memory or as a combination of the two types of memory mentioned. Non-volatile memory is still divided into permanent or semi-permanent memory.

As volatile memory here are memory to understand their information is lost if they are not refreshed or if the power is turned off. Non-volatile memory refers to memories in which the stored information is retained for a longer period of time (at least months) without concern of an operating voltage. With permanent saving, the once saved or hard-wired information remains and can not be changed. In semi-permanent storage, information can be stored permanently, but the information can also be changed. The respective type of storage should be selected according to the application to which the packaging to be produced from the web is to serve once. Depending on the application, certain advantages result.

The data memory may be part of the antenna or the transmitter. The

Data memory can be part of a so-called "tag" which can be read out by means of radio technology, in particular as an RFID tag the production process of the packaging material are described in whole or in part. The data storage may be partially or completely described before being integrated into the laminate. The data store can be described with a unique ID. The data memory can be described in whole or in part with production data. The data memory can be described wholly or partly on the filling machine. The data store may be described in whole or in part at one or more points in the value chain. The data memory can be described in whole or in part at one or more points in time. The information stored on the data memory can be partially or completely replaced.

As already explained, the functional element can have at least one sensor and / or one memory. The electrical element may also have a memory. In addition, the electrical element may have a transmitting and / or receiving unit. In particular, this can be a transmitting and / or receiving unit for

Near-field radio, in particular for NFC technology or RFID technology. For this purpose, the electrical element can be energetically self-powered, for example by a battery or a capacitor. It is also possible and particularly preferred if the functional element and / or electrical element is energetically externally fed. This energetic external feeding can be done by a magnetic or electric field of a reading unit or a writing unit. In particular, an electromagnetic coupling of a formed in the electrical element

Reception coil with a transmitting coil effect the energetic feed. By a transmitting coil, a current can be induced in the receiving coil, the

Operate the first electronic unit and / or the second electronic unit can serve. So it may be useful, for example, to activate the sensor by the excitation field and in the case of activation at least one

Sensor reading to capture and save. If the excitation field is switched off again, at least the stored measured value remains in the memory. Such a measured value can be read out directly or at a later time, upon renewed excitation, so that at least one historical and / or a current sensor reading can be read out. Since the elements in the packaging material must be as simple as possible, it is preferred if these are set up only for detecting the measurement results and storing at least one measurement result and for emitting such a measurement result. A subsequent evaluation of the measurement results can be done in a read-out device.

The readout device may be a mobile computer, in particular a mobile phone, a smartphone, a personal digital assistant or the like. In this an application can be present, which is set up for the evaluation of the measurement results. Such an application may be inventive in its own right. The application activates the transmitting coil for energetic feeding of the first and second electronic units. About the transmitting coil, for example, via a

Influencing the alternating flux information is received from the electrical element. Also, the electrical element, for example, in a frequency range other than that of the exciter field send out the information and the transmitter coil or another coil can receive this information. Measured values can be evaluated with the help of the application. With particular advantage, the electrical element comprises at least in parts a transmitting and receiving unit with an antenna and / or a memory and / or a sensor.

If characteristics of the sensor are described below or the term sensor is used, this description also applies to another

Functional element.

The sensor is advantageously set up to detect at least one property of a pasty and / or liquid product packaged in the packaging, in particular at least partially pourable. The sensor can be arranged directly at least in part on the outer side of the cover layer or the Break the cover layer in the direction of the product. Thus, the sensor may be suitable for directly detecting the at least one property of the product. The sensor may also be provided at least in part within the cover layer and in particular between the cover layer and the support layer. The sensor may then be suitable for indirectly detecting at least one property of the product.

The sensor can be used to measure the pH, the temperature, the oxygen content, the proportion of one or more vitamin / trace element, the electrical

Conductivity, be set up by metabolites or the like. It may be advantageous if the sensor is formed to determine at least one absolute value.

It is advantageous if two measured values are used to determine the instant quality of the food. This may be the same parameter, the sensor measuring the measured value, for example a pH, for the first time e.g. upon contact with the product and then one

Change of the measured value without knowing the actual quantitative value.

The sensor is therefore preferably a sensor which detects a qualitative change of a measured value. Therefore, it may occasionally be advantageous if the sensor for

Determining at least one relative value of the measured value relative to an initial one

Measured value is formed.

Also, more than one sensor can be used to determine different parameters. For example, since the temperature of the product under investigation still has a significant effect on the value determination of the sensor today, it is for the

Correctness of a derived condition determination of the quality important that the valuation is assessed on the basis of the present temperature. It is therefore proposed that a measured value of a first sensor be dependent on a measured value of a second sensor, in particular a temperature value of a second sensor

Temperature sensor, weighted and / or normalized. The provision of a sensor makes it possible to determine one or more properties of, for example, a product which comes into contact with the web material, in particular with its cover layer assigned to the product. In order to be able to determine various properties, it is of course conceivable that the functional element comprises a plurality of, in particular different, sensors and / or that the functional element also comprises further parts, which then also comprise, for example, a sensor. In addition, embodiments of partially or completely printable sensors are conceivable which are based on the principle of an ion-sensitive field-effect transistor (ISFET) or electrolyte-insulator-semiconductor (EIS)

Standard materials of silicon technology replaced in whole or in part by functional inks based on polymers which have the same or similar electrical or electrochemical properties as the conventional materials. The structures are thereby treated with different printing methods, e.g. Screen printing or ink-jet printing on a substrate, in particular the cover layer produced. In addition to its function as carrier of the sensor structure, the substrate itself can serve as a functional part of the sensor structure, e.g. as insulator, semiconductor or ion-sensitive layer. The substrate may be monolayer, multilayer, rigid or flexible supports in the form of e.g. Foils, plates (plates), bows, strips or similar. serve. In particular, the combination of partially or completely printed sensor structures made of functional inks on flexible film substrates as a carrier enables cost-effective production, even for smaller quantities.

It is possible that sensors and / or antennas will be printed as described above. In particular, it is possible to have one sensor or another

Functional element in or on the cover layer, which faces the product to connect. In particular, it is possible to connect an antenna or another electrical element in or on the cover layer facing away from the product. Also, electrical elements are already known as a foil-like Component are available. Already pre-laminated electrical elements may also contain sensors or antennas. This sheet-like element can be connected to on one side of the barrier layer. It is possible that this takes place directly on the barrier layer or on the cover layer or an intermediate layer. Associated with a layer may mean in this disclosure, disposed in or on a layer. Arranging can be done by lamination / laminating, printing, gluing, riveting, mating or the like.

In the manufacture of the web, it may be possible to have laminated electrical elements, for example as film elements, of one roll

to process and in the manufacturing process in a continuous

Application method on the moving in the manufacturing process packaging material to laminate. A multiplicity of functional elements and / or electrical elements can be unwound as web material from a roll. The arranged on the role or the web items may have a defined distance from each other, so that the elements in the blank in each case in a same position

is arranged.

It has also been recognized that to provide the desired information to the user, at least one functional element can be integrated into the package laminate, specifically between the carrier layer and a cover layer and / or at least partially into the carrier layer or cover layer. This simplifies the manufacture of the package laminate and the attachment of the element. This is because the structuring and relatively rigid carrier layer can be used. The carrier layer thus forms a suitable substrate for mounting and receiving the at least one element. Alternatively or additionally, the carrier layer provides a protective effect with regard to the element so that it can be absorbed without damage in the package laminate in the long run. Thus, for example, the package laminate can be easily rolled up into a roll after its manufacture, and then moved to another location. The carrier layer protects the at least one electronic functional element Damage, especially due to kinking or excessive bending. However, the element can also be protected by the carrier layer during the formation of the package and in the package itself. When integrating the element at least partially into the cover layer, the bending stiffness of the support layer can also be used. In addition, the layer thickness of the package laminate can be kept low without having to take up the element at least partially in the carrier layer. In addition, as needed, a contact of the element to

Outside of the package laminate or to the inside of the later pack can be provided.

Advantageously, the sensor is designed as a temperature sensor. In some cases this can advantageously be an active temperature sensor. active

Temperature sensors generate an electrical signal due to their measuring principle. This has the advantage that no electrical auxiliary energy is needed. An example of such an active temperature sensor is the thermocouple.

In particular, in this case can already be an electrically opposite to the

Barrier layer insulated conductor be sufficient.

In other cases, it may be preferred that the temperature sensor is designed as a passive temperature sensor. For passive temperature sensors is in

Unlike active sensors requires an auxiliary power to read the signal. Example of a passive temperature sensor is the

RTDs. This is an electrical component which utilizes the temperature dependence of the electrical resistance of an electrical conductor to measure the temperature. As a resistance material are preferably pure metals. They show stronger resistance changes than alloys. Furthermore, they have a nearly linear relationship of

Resistance to the temperature. Often platinum is used. However, it is also possible to use measuring resistors made of ceramics [sintered metal oxides] or semiconductors. This can be much higher Temperature coefficients than with metals and thus also achieve much higher sensitivities, but partly at the expense of accuracy.

Both thermocouples and different versions of

Resistance thermometers can be produced cost-effectively today by printing technology.

Advantageously, at least one of the at least one sensor is a conductivity sensor.

With a conductivity sensor, the electrical conductivity can be determined in particular by liquids. The conductivity results as

Sum parameter of all dissociated substances (ions) dissolved in the liquid. This is of particular advantage when a package is produced from the web material (packaging material), which serves for the preservation of a product having at least one liquid component, preferably a foodstuff. Here, the development makes use of the fact that the electrical resistance changes in most liquid or at least one liquid component containing foods with transition from an unconscious edible state and a corrupted state.

As already explained, the functional element may be formed from a plurality of sub-elements. In this case, a first and a second functional element can be provided and, for example, an electrical or chemical connection between the two partial elements can be activated by the relative movement.

The functional element may comprise at least one electrical conductor according to one embodiment. It is possible that the relative movement opens or closes the electrical conductor. In or on one of the layers, an electrical conductor can be provided. A part of the actuating element can form the electrical conductor track. In a relative movement, for example, the Conductor track to be opened. It is also possible that the actuating element engages in the electrical conductor track and, for example, disconnects in order to open the electrical conductor. The actuating element may comprise at least one electrical conductor according to one embodiment. By a relative movement of this electrical conductor of the actuating element with an electrical conductor of the

Function element interact. For example, it is possible that the electrical conductor of the actuating element has an opening in the electrical conductor of the

Function element in the relative movement closes. Also can by the

Relative movement of the electrical conductor of the actuating element engage in the electrical conductor of the functional element and, for example, the

close the electrical conductor of the functional element. According to one embodiment, it is proposed that the functional element is arranged on an inner side or an outer side of the packaging material. According to a further embodiment, it is proposed that the functional element is arranged between the inside and the outside of the packaging material. The packaging material is formed from a laminate of several layers comprising at least one carrier layer, a barrier layer and a cover layer. Electrical conductors can be routed isolated on one of these layers opposite the barrier layer. So it is possible to lead an electrical conductor on a cover layer. It is also possible to guide an electrical conductor on a carrier layer. The electrical conductor is preferably insulated from the barrier layer.

A first side of the barrier layer may be inside the package. On such a first side, a layer may be the cover layer, which is applied there directly on the barrier layer. It is possible that the functional element at least partially and / or one of the electrical conductors or conductor tracks are applied between the barrier layer and the cover layer. The electrical conductor can be formed, for example, as a foil conductor and thus be isolated independently of the barrier layer. Also, the functional element, for example, the sensor, may be formed as a film element, wherein the electronics or the chemical components are laminated in a film. This film can be placed on the barrier layer and it passes through the films of the

Functional element an electrical insulation of the functional element with respect to the barrier layer. The film may be sealable with at least one of the cover layers, in particular be formed from the same plastic.

It is also possible for the functional element and / or one of the electrical conductors to be applied to the side of the cover layer facing away from the barrier layer. This can be useful, in particular, if the functional element and / or the electrical conductor or the printed conductor are not isolated on their own. Then, the cover layer may form an insulation of the electrical conductor, the conductor track and / or the functional element with respect to the barrier layer. This is a sensible arrangement, in particular for printed electronic elements, conductors or printed conductors. Also, a primer layer can serve as an insulating layer.

A second side of the barrier layer may face an outside of the package. At least one carrier layer is applied to this second side of the barrier layer. It is understood that the order in which the layers are applied to one another may in particular also initially comprise the carrier layer to which the barrier layer is then applied, which is also meant by the above formulation. The electrical element, a conductor track and / or one of the electrical conductors may be applied between the barrier layer and the carrier layer or on a layer which is arranged on the side of the carrier layer facing away from the barrier layer. A layer which is arranged on the side of the carrier layer facing away from the barrier layer can, for example, be the outer side of the carrier layer, a cover layer applied to the carrier layer Be colored layer or the like. In particular, when a conductor track or an electrical conductor is applied to such an outer layer, in the case of overlapping the blank or two edges of the blank, a

Through-hole made from the inside out, in which the conductors or

Tracks rest on each other.

According to one embodiment, it is proposed that the first side of the barrier layer of the inner layer of a pack and the second side of the

Barrier layer facing an outer layer of the package.

According to one embodiment, it is proposed that the actuating element is a closure element of the package. This may be a lid, a cutting element, an adhesive element or the like, with which the package can be brought from the closed state to the open state. Just a closure of the package is moved relative to the package at the moment of opening the package. This relative movement can cause the functional element is activated, since then the package is open. The shutter may, for example, be

Be screw cap. It is also possible that upon rotation of the closure, a barrier layer of the package, e.g. is destroyed by a cutting element, so that from this moment the shelf life of the food in the pack is particularly limited. Especially at this moment an activation of the functional element should be done, since then the limited durability runs.

It is also proposed that the actuating element is at least partially disposed on a closure element of the package. It is not absolutely necessary that the actuating element itself is the closure, but it may also be sufficient to arrange this on the closure. For example, a tab or tab may be attached to the interior or exterior of the closure,

for example, the lid, be arranged. Turning or pulling may move this actuator relative to the package. It is for example it is possible for a flag or a tab to be torn off from an attachment to the package, this tearing activating the functional element.

The functional element itself can, as already explained, be arranged in or on the package. In particular, the functional element can be arranged on a flange which can be connected to the packing or a rotary closure or cover of a closure. A flange may for example be part of a plastic element which is attached to the packaging material. Such a plastic element may for example be part of a closure. Also, the flange can be part of a

Be plastic element, for example, a bottom to which the packaging material is arranged.

The closure element, for example a flange of a closure, may be arranged on the package. In particular, the closure element can be arranged in the region of a so-called "overcoated holes." By actuating the

Locking element can be stuck and overcoated hole

For example, product moisture escaping from the pack. This product moisture may be suitable for activating the functional element. For this reason, according to one embodiment, the functional element can be arranged partially or completely in a cavity between the closure element and the pack. In this case, the cavity is open in particular in the direction of the opening of the closure element. If the overcoated hole is opened in the region of the opening of the closure element or else the packaging jacket of the packaging material is opened in the region of the opening of the closure element, moisture can escape from the interior of the package to the outside. If the cavity is opened in the direction of the opening of the closure element, moisture also reaches into the area of the cavity and as a result the functional element can be activated.

Also, an electrical path can run along such an overcoated hole or in the region of an opening of the closure element on the package or an electrical path in any layer in the region of the opening of the Run closure element. A package may be opened by tearing at least one layer of the package laminate. If this tearing is performed by the actuating element, a relative movement takes place between the actuating element and the packaging material. Is in the region of the opening, which is opened by the actuator, an electrical conductor, it can be separated. The separation or closing can be done directly or indirectly (eg by intermediate steps or with a time delay).

Also, an electrical conductor can be closed, for example, when a screw cap is rotated on a thread and in this case an electrical conductor is closed on the thread via electrical contacts on the inside of the rotary closure.

According to one embodiment, it is proposed that the relative movement sever a moisture barrier of the package. In particular, a moisture barrier may be an overcoated hole, and any other arrangement of layers of the package laminate may be severed, thereby causing the moisture barrier to be severed

Moisture barrier is severed. Then another layer may be the moisture barrier. The escaping moisture can serve to activate the functional element.

According to one embodiment, it is proposed that the functional element has a chemical cell, and that the first time the package is opened, the chemical cell is activated. For example, a chemical cell may be based on a redox reaction. In this case, an electrolyte can react with a reaction partner. For example, can serve as the electrolyte NaCl and reactant as a nanoscale aluminum. If the reaction is triggered, this proceeds according to the principle of lateral oxidation until consumption of the reactant.

For example, it can proceed as a lateral oxidation of an aluminum layer. These and other chemical reactions can occur along a layer of the

Reaction partner run. Here, for example, a thin layer of a Reactants are subjected to the electrochemical process with an electrolyte. Through this process, information underlying the layer of the reactant can be optically released.

According to one embodiment, the reaction is self-sustaining, so that after it has been activated, it runs until consumption of the reactant. In this case, for example, from the origin of the reaction along the layer of the reaction partner, the reaction can proceed in a spatial direction with a sharply demarcated front. That under the reactants, for example the

Aluminum layer, lying substrate is thereby exposed, for example, optically, so that there printed information is gradually visible. For example, this information may provide information about the shelf life of the product. If activation activates the chemical process, the reaction partner, for example the solvent, gradually dissolves

Aluminum layer on and gradually the underlying label is exposed. On this label, the information on the durability can be specified and in a full consumption, for example, the consumer a

Information may be displayed that the food is no longer durable. Especially in electrochemical processes, a first activation of the

Activate the function element permanently. In this case, persistent means that the activation is longer than the actual initial activation by the

Moisture sensor or short-circuiting takes. For example, in the above example, the durability may be due to the self-draining reaction between the electrolyte and the reactant. Is the

Reactant consumed, the activation is completed, but still falls under the term permanent activation. Alternatively, it can be provided that the functional element is permanently deactivated after a first activation. The display on the aforementioned functional element can be realized in many different ways. For example, with simple indicators, colors or color gradients can be displayed, which differ over the

Set or change the consumption period. Somewhat more elaborate indicators may also have a display on which the number of days since opening or - vice versa, the remaining durability days can be displayed in a corresponding alternating order.

According to a further preferred embodiment, however, the functional element may additionally have a measuring element, which further parameters such as

Measures temperature, humidity, or the like and displays on the functional element.

In order to be able to show the shelf life of the food depending on the environmental conditions, it may make sense that the chemical reaction

is temperature dependent. In particular, the consumption rate of the reaction partner can be temperature-dependent. For example, at a low temperature, the reaction may be slower than at a high temperature.

Corresponding electrolytes and reactants are known, so that a suitable choice can be made.

It is of particular advantage, although the functional element and the

Measuring element are integrally formed. In this case, the actuating element can also serve as a measuring element to reduce the size of the functional element.

The functional element may be formed as a flat label, which may preferably be strip-shaped, in particular when it is a

Functional element act with a display in a longitudinal extension. However, it is alternatively also possible to design the functional element with a round, oval or rectangular planar extension, wherein the functional element is made possible flat. Especially with electrochemical processes, a first activation can permanently activate the functional element. Permanently in this case means that the activation is longer than the relative movement lasts. For example, in the above example, the durability may be due to the self-draining reaction between the electrolyte and the reactant. Is the

Reactants consumed, the activation is completed, but still falls under the term permanent activation. Alternatively, it can be provided that the functional element is permanently deactivated after a first activation. For completeness, the structure of the layers of the

Packing laminate (as a preferred embodiment of the packaging material) described in more detail.

The layers of the layer sequence are connected to one another. The one in this

As used herein, the term "connected" or "composite" includes the adhesion of two articles beyond van der Waals attractions. Unless stated otherwise, the layers can follow one another indirectly in the layer sequence, ie with one or at least two intermediate layers, or directly, that is to say without an intermediate layer. For the sheet-like composite, this means, for example, that the barrier layer can be directly and thus directly connected to the first polyolefin layer or indirectly via a bonding agent layer. Furthermore, the further polyolefin layer can be directly and directly connected to the carrier layer, but other articles may also be present, for example in the form of further polymer layers therebetween, an immediate connection being preferred. The phrase "containing a layer sequence" as used above means that in the composite according to the invention at least the specified layers in the

given order can be given. This formulation does not necessarily mean that these layers follow one another directly. A first polyolefin layer can overlay the barrier layer on a side facing away from the carrier layer as a cover layer. A further polyolefin layer can be superimposed as the outer layer on the carrier layer on a side facing away from the barrier layer. The further polyolefin layer preferably adjoins the carrier layer. The first polyolefin layer as well as the further polyolefin layer, as well as all other polymer layers can have further constituents. These

Polyolefin layers are preferred in an extrusion process in the

On or applied sheet-like composite material. The other constituents of the polyolefin layers are preferably constituents which influence the behavior of the

Polymer melt does not adversely affect when applied as a layer. The further constituents may be, for example, inorganic compounds, such as metal salts or other plastics, such as other thermoplastics. However, it is also conceivable that the further constituents are fillers or pigments, for example carbon black or metal oxides.

Suitable thermoplastics for the further constituents in particular those into consideration, which are easily processed by a good extrusion behavior. Among these are polymers obtained by chain polymerization, in particular polyesters or polyolefins, with cyclic olefin copolymers (COC), polycyclic olefin copolymers (POC), in particular polyethylene and polypropylene, being particularly preferred and polyethylene being very particularly preferred. Among the polyethylenes, HDPE, MDPE, LDPE, LLDPE, VLDPE and PE and mixtures of at least two are preferred. It can too

Mixtures of at least two thermoplastic materials are used. Suitable polyolefin layers have a melt flow rate (MFR) in a range of 1 to 25 g / 10 min, preferably in a range of 2 to 20 g / 10 min and more preferably in a range of 2.5 to 15 g / 10 minutes, and a density in a range of 0.890 g / cm ³ to 0.980 g / cm ³ , preferably in a range of 0.895 g / cm ³ to 0.975 g / cm ³ , and more preferably in a range of 0.900 g / cm ³ to 0.970 g / cm ³ . The polyolefin layers preferably have at least a melting temperature in a range of 80 to 155 ° C, preferably in a range of 90 to 145 ° C, and more preferably in a range of 95 to 135 ° C. Preferably, the sheet-like composite between the barrier layer and the carrier layer comprises a polyolefin layer, preferably a polyethylene layer. More preferably, the composite precursor between the barrier layer and the carrier layer comprises a polyolefin layer, preferably a polyethylene layer.

As carrier layer, any material suitable for this purpose can be used, which has sufficient strength and rigidity to give stability to the container so that the container essentially retains its shape in the filled state. In addition to a number of plastics are on

Plant-based pulps, in particular pulps, preferably glued, bleached and / or unbleached pulps, paper and board being particularly preferred. The basis weight of the carrier layer is preferably in a range of from 120 to 450 g / m ² , more preferably in a range of from 130 to 400 g / m ^2, and most preferably in a range of from 150 to 380 g / m ² . A preferred paperboard generally has a single-layer or multi-layer structure and can have one or both sides with one or more outer layers

be coated. Furthermore, a preferred board has a residual moisture of less than 20 wt .-%, preferably from 2 to 15 wt .-% and particularly preferably from 4 to 10 wt .-% based on the total weight of the carton. A particularly preferred paperboard has a multilayer construction. Further preferably, the cardboard on the surface facing the environment at least one, but more preferably at least two layers of a cover layer, the

Professional is known as "stroke". In the papermaking process, the term "coating" generally refers to liquid phases containing inorganic solid particles, preferably chalk, gypsum or clay-containing solutions, which are applied to the surface of the cardboard Range from 100 to 360 J / m ² , preferably from 120 to 350 J / m ² and particularly preferred from 135 to 310 J / m ^2. The above-mentioned ranges make it possible to provide a composite from which a container with high density, light and in low

Fold tolerances.

The barrier layer is a metal layer. In principle, all layers with metals which are known to the person skilled in the art and can provide high light and oxygen impermeability are suitable as the metal layer. According to a preferred

Embodiment, the metal layer may be present as a film or as a deposited layer, for. B. after a physical vapor deposition. The metal layer is preferably an uninterrupted layer. According to a further preferred embodiment, the metal layer has a thickness in a range from 3 to 20 μm, preferably in a range from 3.5 to 12 μm, and particularly preferably in a range from 4 to 10 μm.

Preferably selected metals are aluminum, iron or copper. As the iron layer may be a steel layer, for. B. be preferred in the form of a film. Further preferably, the metal layer constitutes a layer with aluminum. The aluminum layer may expediently consist of an aluminum alloy, for example AlFeMn, AlFel, 5Mn, AlFeSi or AlFeSiMn. The purity is usually 97.5% and higher, preferably 98.5% and higher, each based on the total

Aluminum layer. In a particular embodiment, the metal layer consists of an aluminum foil. Suitable aluminum foils have a ductility of more than 1%, preferably more than 1.3% and more preferably more than 1.5%, and a tensile strength of more than 30 N / mm ² , preferably more than 40 N / mm ² and more preferably more than 50 N / mm ² . Suitable aluminum foils show in Pipette test a drop size of more than 3 mm, preferably more than 4 mm and more preferably of more than 5 mm. Suitable alloys for forming aluminum layers or foils are available under the designations EN AW 1200, EN AW 8079 or EN AW 8111.

In the case of a metal foil as a barrier layer, one and / or both sides of the metal foil may have an adhesion promoter layer between the metal foil and a metal foil

be provided nearest polymer layer. According to a special

However, the embodiment of the container according to the invention does not provide an adhesion promoter layer on either side of the metal foil, between the metal foil and the nearest polymer layer.

Further preferred may be a metal oxide layer as a barrier layer. When

Metal oxide layers include all metal oxide layers which are familiar to the person skilled in the art and which appear suitable in order to achieve a barrier action against light, vapor and / or gas. Particularly preferred are metal oxide layers based on the previously mentioned metals aluminum, iron or copper, as well as those metal oxide layers based on titanium or silicon oxide compounds. A metal oxide layer is exemplified by vapor deposition of a

Plastic layer, for example, produces an oriented polypropylene film with metal oxide. A preferred method for this is the physical

Vapor deposition.

According to a further preferred embodiment, the metal layer of the metal oxide layer may be present as a layer composite of one or more plastic layers with a metal layer. Such a layer is obtainable, for example, by vapor-depositing a plastic layer, for example an oriented polypropylene film, with metal. A preferred method for this is the physical

Vapor deposition. In order to facilitate the Öffenbarkeit the container according to the invention or the sheet-like composite, the support layer may have at least one recess (synonym: hole, opening). In a particular embodiment, the recess is at least with the barrier layer and at least the first

Polyolefin layer covered as cover layers. Preference is given to a sheet-like composite, wherein the carrier layer has at least one hole which is covered at least with the barrier layer and at least with the first polyolefin layer, and the further polyolefin layer. Furthermore, between the already mentioned layers, one or more further layers, in particular

Adhesive layers, be provided. It is preferred that the

Hole cover layers at least partially, preferably at least 30%, preferably at least 70% and particularly preferably at least 90% of the surface formed by the hole are interconnected. According to a particular embodiment, it is preferred that the hole penetrates the entire composite and is covered by a closure or opening device closing the hole. In connection with a first

In the preferred embodiment, the hole provided in the carrier layer can have any shape known to those skilled in the art and suitable for various closures, drinking straws or opening aids. Mostly the opening of a flat

Composite produced or a container with a laminar composite by at least partially destroying the hole covering the cover layers. This destruction can be done by cutting, pushing into the container or pulling out of the container. Destroying may be by a closure connected to the container and disposed in the region of the hole, usually above the hole, or a drinking straw which covers the hole

Lochdeckschichten is encountered done.

According to a further preferred embodiment, the carrier layer of the composite has a multiplicity of perforations in the form of a perforation, the individual holes having at least the barrier layer and one of the first Polyolefin layer are covered as Lochdeckschichten. A container made from such a composite can then be opened by tearing along the perforation. Such holes for perforations are preferably generated by means of a laser. Particularly preferred is the use of laser beams when a metal foil or a metallized film is used as the barrier layer. It is also possible that the perforation by mechanical, usually blades having perforation tools is introduced.

Suitable adhesion promoters in the adhesion promoter layer are all plastics which are suitable by functionalization by means of suitable functional groups, by the formation of ionic bonds or covalent bonds to the

Surface of the other layer to produce a solid connection.

Preference is given to functionalized polyolefins which are obtained by co-polymerization of ethylene with acrylic acids such as acrylic acid, methacrylic acid, crotonic acid, acrylates, acrylate derivatives or double bonds

Carboxylic acid anhydrides, for example maleic anhydride, or at least two of which were obtained. Of these, preferred are polyethylene-maleic anhydride graft polymers (EMAH), ethylene-acrylic acid copolymers (EAA) or ethylene-methacrylic acid copolymers (EMAA), which are sold, for example, under the trade names Bynel® and Nucrel® by DuPont or Escor® by ExxonMobile Chemicals ,

A preferred polyolefin is a polyethylene or a polypropylene or both. A preferred polyethylene is one selected from the group consisting of an LDPE, an LLDPE, and a HDPE, or a combination of at least two thereof. Another preferred polyolefin is a m-polyolefin. suitable

Polyethylenes have a melt flow rate (MFR) in a range of 1 to 25 g / 10 min, preferably in a range of 2 to 20 g / 10 min, and more preferably in a range of 2.5 to 15 g / 10 min, and a density in a range of 0.910 g / cm ³ to 0.935 g / cm ³ , preferably in a range of 0.912 g / cm ² to 0.932 g / cm ³ , and more preferably in a range of 0.915 g / cm ³ to 0.930 g / cm ³ .

A m-polyolefin is a polyolefin prepared by a metallocene catalyst. A metallocene is an organometallic compound in which a central metal atom is located between two organic ligands, such as cyclopentadienyl ligands. A preferred m-polyolefin is a m-polyethylene or a m-polypropylene or both. A preferred m-polyethylene is one selected from the group consisting of a mLDPE, a mLLDPE, and a mHDPE, or a combination of at least two thereof.

A preferred ink layer includes colorants in a proportion in a range of 5 to 15 wt%, preferably 8 to 15 wt%, more preferably 13 to 15 wt%, based on the color layer. Another preferred color layer further includes an application medium. A preferred application medium is an organic medium. A preferred organic medium is an organic binder. A preferred organic binder is a thermoplastic. A preferred one

Thermoplastic is polyvinyl butyral (PVB). The color layer preferably adjoins the further polyolefin layer, wherein the further polyolefin layer preferably adjoins the carrier layer. Preferably, the color layer is obtainable by printing. A preferred printing in this case is an offset printing or a gravure printing or both. A further preferred ink layer is superimposed on a side of the ink layer facing away from the carrier layer by no further layer of the layer sequence. A preferred colorant is a colorant according to the standard DIN 55943. Another preferred colorant is a pigment or a dye or both. A particularly preferred colorant is a pigment. Another preferred

Colorant is a natural colorant or a synthetic colorant or both. Another preferred colorant is one selected from the group consisting of a white colorant, a black colorant, and a colored colorant, or a combination of at least two thereof. Another one preferred colorant is an effect colorant or a colorant or both.

The features of the methods and devices are freely combinable. In particular, features and sub-features of the description and / or the dependent and independent claims, even in complete or partial circumvention of features or sub-features of the independent claims, alone or freely combined with each other independently be inventive. The article will be explained in more detail with reference to drawings showing an exemplary embodiments. In the drawing show:

Fig. 1A shows a pack according to an embodiment; Fig. 1B is a detail view of a closure;

Fig. IC is a sectional view of a shutter;

2A shows a pack according to an embodiment;

Fig. 2B is a detail view of a closure;

Fig. 2C is a sectional view of a closure; 3A shows a package according to an embodiment with inactive

Functional element; 3A with active functional element. FIG. 4A is a sectional view through a closure according to FIG

Embodiment; 4B shows a closure in a non-activated state;

4C shows a closure in an activated state;

FIG. 5A shows an actuating element in the region of an overcoated hole; FIG.

5B shows an arrangement of a conductor in the region of an overcoates holes;

5C shows a further arrangement of a conductor in the region of an overcoated holes;

Fig. 6A is a sectional view of a functional element;

Fig. 6B is a sectional view of a functional element in a non-activated

State;

6C is a sectional view of a functional element in an activated state;

7 shows a representation of a reaction course in a functional element

according to FIG. 6.

Fig. La shows a pack 2 of a packaging material 4. The package 2 is in the

already closed form and welded in particular along a sealed seam 6.

The packaging material 4 may be constructed in one of the previously described ways and in particular be formed as a laminate.

On an upper side of the package 2, a closure 8 may be provided. The closure can be understood as an actuating element. The shutter 8 is off a lid 10 and a fixed to the package 2 and the packaging material 4 flange 12 is formed.

Between the flange 12 and the packaging material 4 of the package 2 can a

Function element 14 may be provided, as will be described below. The functional element 14 extends into the region of the opening of the flange 12, which is closed by the cover 10.

The flange 12 is, as shown in Fig. Lb, provided with a recess 12 a, which extends into a opening 12 in the opening of the flange 12 b.

The functional element 14 is, as shown in FIG. Lc, disposed between the flange 12 and the packaging material 4 of the package 2. First, the functional element 14 extends through the recess 12a into the cavity 12b. In the region of an opening 16 of the flange 12, the cavity 12b opens. Now, if the packaging material 4 in the region of the opening 16, for example, by a relative movement of the lid 10 and thus a cutting element, not shown, with respect to the flange 12 and thus the package 2 damaged and in particular open, so moisture from the

Interior 18 of the package 2 in the region of the opening 16. This exiting moisture may be sufficient, which arranged in the cavity 12 b

Activate functional element 14. By means of this moisture activation, a chemical process preferably takes place in the functional element, as will be described below. FIG. 2 a shows an exemplary embodiment of a pack 2 with a packaging material 4, in which the functional element 14 is arranged completely in the region of the closure 8.

In FIG. 2b, it can be seen that the recess 12a breaks through the flange 12 upwards on the side facing away from the pack 2 and opens into the opening 16 in a cavity 12b. This is shown in more detail in the sectional view in Fig. 2c. It can be seen that the functional element is in communication with the opening 16 via the cavity 12b. If the packaging material 4 of the package is damaged, in particular separated, in the region of the opening 16, moisture enters the region of the opening 16 from the interior 18 of the package. This opening 16 can be made by a relative movement of the lid 10 relative to the flange 12, thus the package 2.

The activation of the functional element 14 is then carried out by the at the

Functional element 14 reaching moisture.

In the figures lc and 2c, the packages are shown unopened. For example, by a cutting element, not shown, which is moved by relative movement of the lid 10 relative to the flange 12 in the direction of the packaging material 4, the packaging material 4 can be cut in the region of the opening 16. When first screwing the lid 10 thus takes place an opening of the pack 2. This

Casting opening can then be used to activate the functional element 4.

The functional element 14 can in particular be an electrochemical

Be functional element, as described in Figures 6.

It is also possible that the functional element is for example an antenna. By a movement of the cover 10 on the flange 12, for example, a short-circuiting of two contacts of the functional element 14 can take place. For this purpose, for example, be provided on the opening 16 facing the inner wall of the flange 12, a contact element, which is brought into contact with the functional element. This bringing into contact can be effected, for example, by the relative movement of the lid 10. For example, a cutting element, which is used to open the

Packing material 4 is used, can simultaneously bring an electrical contact element in contact with the functional element 14. This is useful, for example, if the functional element is an antenna. The antenna can then, for example, by the cutting element or the electrical contact element arranged thereon to be activated. In particular, a sensor on the inside of the flange 12, which faces the opening 16 may be provided. A conductor of the sensor may be electrically separated from the contact element 14. By way of the relative movement, an electrical contact element can produce an electrical connection between a sensor and the functional element 14.

Fig. 3A shows a further embodiment of a pack 2. Here, a tab 20 is attached to the lid 10. The tab 20 is in operative connection with a functional element 14, in particular the tab 20 is mechanically connected to the functional element 14. In the delivery state, the tab 20 is connected both to the cover 10 and to the functional element 14.

By turning the lid 10, the tab 20 is pulled off the functional element 14, as shown in Fig. 3B. This can be an activation of the

Function element 14 done. For example, the functional element 14 is an antenna which can be read out, for example, by means of NFC or RFID technology. First, the antenna may not be functional, for example by a short circuit on the tab 20. If the tab 20 is removed, this short circuit can be canceled and, for example, a connection of the antenna to be connected to a sensor arranged inside the package 2. over

Radio technology can be the antenna appealing and, for example, read sensor data from the inside of the pack.

Activation at a first opening is also shown in Figs. 4A to 4C. Again, the flange 12 is attached to the packaging material 4 of the package 2. In the region of the opening 16, the cover 10 is screwed onto the flange 12. The inner wall of the lid 10 is metallically coated at least in parts. This can be seen in FIG. 4B. There it can be seen that the inner wall of the lid 10 is coated with a metallic coating 22 in parts. It can be seen that the Coating 22 encloses two partial circle segments of the inner wall of the lid 10. The enclosed angular range of each segment can be between, for example, 10 and 170 °, preferably between 90 and 170 °. In particular, the

enclosed angles of a segment smaller than 180 ° to enable activation in the event of rotation of the lid 10. This is in addition to the metallic

Coating 22 of the lid 10 provided a metallic coating 24 of the flange 12 in the region of the thread. This coating is also provided only in at least one partial circle segment. In particular, the coatings 22, 24 are opposed to each other

Subcircuit segments provided. The angle enclosed by the coating 24 may be corresponding to the angle enclosed by the coating 22.

In Fig. 4B, a closed state is shown. Here are the coatings 22, 24 one above the other, so that they touch directly.

Because the enclosed angles of the partial circle segments of the coatings 22, 24 are preferably less than 180 °, a gap results between the two

Partial circle segments.

When first opened, the lid 10 is rotated relative to the flange 12 and, as shown in Fig. 4C, the coatings 22, 24 overlap each other such that the gaps formed between the pitch circle segments are closed. Thus, the pitch circle segments short each other and there may be an activation of a functional element.

In FIG. 4A, for example, a sensor is provided as a functional element 14 in the region of the interior of the opening 16. By turning the lid 10, an activation of the functional element 14 takes place. 5A, for example, shows an overcoated hole 26 in the region of a packaging material 4, for example in the region of a pouring opening. A flange 12, as previously shown, may be disposed with its opening 16 over the overcoated hole 26. It is understood that the arrangement of the package with overcoated hole 26 with and / or without functional element 14 in conjunction with the packages 2 according to FIGS. 1 and 2 is possible.

The overcoated hole 26 is undamaged if the package is unopened. By a cutting element, the overcoated hole 26 is pierced in a conventional manner. As a result, the package 2 can be opened.

Runs along the overcoated holes 26, for example, an electrical conductor 28 may be interrupted by the breaking of the overcoated holes 26, the conductor loop of the electrical conductor 28.

Thus, for example, at the first opening by severing the arranged in the region of the overcoated holes 26 barrier layer at the same time an electrical conductor 28 is severed. This separation of the electrical conductor 28 can lead to an activation of a functional element 14. For example, an antenna may be short-circuited and activated only by disconnecting the electrical conductor 28 for transmission.

5B shows an exemplary embodiment in which a carrier layer 4a of the packaging material 4 is removed in the region of the overcoated holes 26. As a result, a barrier layer 4b is exposed, which is optionally covered with a cover layer 4b 'or a bonding layer 4b'. In addition, the barrier layer 4b may be protected by a cover layer 4c disposed in the interior 18 of the package. On the top of the

Barrier layer 4b and the cover layer 4b 'extends the electrical conductor 28th

FIG. 5C shows a further embodiment in which the electrical conductor 28 on the inner side 18 of the barrier layer 4b, in particular between the barrier layer 4b and the cover layer 4c extends. The electrical conductor 28 shown there extends over the entire diameter of the overcoated holes 26.

6A shows a functional element 14 in vertical section along the line VI A - VI A from FIG. 6B, which is used, for example, in FIGS. 1 and 2.

This functional element 14 has an electrochemical activation element 11 which reacts like a humidity sensor. FIG. 6A shows the functional element 14 in a horizontal section along the line VI B - VI B from FIG. 6A. The

Functional element 14 initially has a carrier substrate 30. On the

Support substrate 30, electrical conductors 32 are provided, which are spaced apart in the region of an end face and there form a gap 34 to each other. This gap 34 can be arranged in the region of the cavity 12b and, in particular, protrude into the opening 16. Over the gap 34, the

Activation element 11 may be arranged and short-circuit the gap 34 in the case of activation.

The two conductors 32 are separated from each other by a triggering element 36 on the other side. When an electrical short is made across the gap 34 between the two conductors 32, e.g. via the activation element 11, the triggering element 36 can be dissolved, for example. The triggering element 36 may be, for example, a galvanic cell, which dissolves itself via the short circuit between the conductors 32 along the gap 34 itself.

It can be seen that the triggering element 36 is an electrolyte 38 of a

Reaction partner 40 spatially and mechanically separates. For example, that is

Electrolyte 38 NaCl. The reaction partner 40 may be, for example, a nanoscale aluminum layer. Substrates other than electrolyte 38 and reactants 40 are also conceivable. If the triggering element 36 is opened, then electrolyte 38 can reach the reaction partner 40. There is a reaction between the electrolyte 38 and the

Reaction partner 40, in particular according to the principle of a lateral oxidation. This reaction is propagated along the channel of the reactant 40 in one

Spatial direction continues. As a result, the reaction partner 40 is dissolved. The dissolution of the reactant takes place in the spatial direction with a sharp front 46.

FIG. 6C shows how the electrolyte 38 flows into the channel 42 of the reaction partner 40 and how the reaction partner 40 gradually reacts with the electrolyte 38. By this reaction, a printed label 44, which is located below the reaction partner 40, can be seen.

For example, the label 40 may be printed with information on durability. Due to the continuous reaction between the electrolyte 38 and the

Reaction partner 40 will gradually exposed further information of the label 44.

The once triggered reaction is unstoppable and the

Reaction partner 40 is completely used up, so that after a certain time the entire label 44 is visible.

The reaction rate between the electrolyte 38 and the reactant 40 may be temperature dependent.

For example, Figure 7 shows the distance traveled by the front 46 of the reaction over time. In a first time window 48, the package 2 is for example at

Stored at room temperature. As a result, the reaction is faster and the front 26 propagates faster. In a second time window 50, the package 2 is stored at refrigerator temperature. It can be seen that the front 46 develops slower. In the time window 52, the package 2 is stored again at room temperature and the front 46 in turn propagates faster. After a certain Time, the entire reaction partner 40 is used up and the display of the label 44 is completely read.

This may indicate, for example, that the product is his

Shelf life exceeded.

By activating by means of a relative movement, sensors, antennas or the like can be activated electrically as well as electrochemically. As indicated above, traces may be opened or closed. As a result, antennas or sensors can be activated. Also, electrochemical and chemical processes can be initiated. All these actions are made possible by the relative movement between the packaging material and an actuating element. Actuators can be, for example, a cover, a tab, a cutting element or the like.

LIST OF REFERENCE NUMBERS

2 pack

4 packing material

4a carrier layer

4b barrier layer

4c topcoat

6 sealed seam

8 closure

10 lids

11 activation element

12 flange

12a recess

12b cavity

14 functional element

16 opening

18 pack inside

20 tab

22, 24 coating

26 overcoated hole

28 electrical conductors

30 carrier substrate

32 conductors

34 gap

36 activation element

38 electrolyte

40 reaction partners

42 channel

44 labels

46 front

48-52 time window

Claims

Patent claims

1. Pack, in particular food pack, with

a packaging material,

at least one arranged on the packaging material actuator, and at least one arranged on the packaging material and / or the actuating element, at least electrical or electrochemical

Functional element,

characterized,

a relative movement between the actuating element and the packaging material changes an electrical or electrochemical state of the functional element.

2. Pack according to claim 1,

characterized,

that the relative movement activates or deactivates the functional element.

3. Pack according to one of the preceding claims,

characterized,

that the functional element comprises at least one electrical conductor and that the relative movement opens or closes the electrical conductor.

4. Pack according to one of the preceding claims,

characterized,

that the actuating element comprises at least one electrical conductor and that the electrical conductor interacts with an electrical conductor of the functional element during the relative movement.

5. Pack according to one of the preceding claims,

characterized,

that the functional element on an inside or an outside of the

Packing material is arranged.

6. Pack according to one of the preceding claims,

characterized,

that the actuating element is a closure of the pack.

7. Pack according to one of the preceding claims,

characterized,

that the actuating element is at least partially disposed on a closure of the pack.

8. Pack according to one of the preceding claims,

characterized,

the functional element is arranged on a flange which can be connected to the packing or a cover of a closure.

9. Pack according to one of the preceding claims,

characterized,

that the functional element is arranged partially or completely in a cavity between the closure and the package, the cavity being open in particular in the direction of the opening of the closure.

10. Pack according to one of the preceding claims,

characterized,

the relative movement separates or closes an electrical path of a conductor.

11. A package according to one of the preceding claims, characterized,

that the relative movement cuts through a moisture barrier of the package and that moisture exiting the package activates the functional element.

12. Pack according to one of the preceding claims,

characterized,

that the functional element comprises a chemical cell and that the

Relative movement activates the chemical cell.

13. Pack according to one of the preceding claims,

characterized,

that in the chemical cell after activation a self-supplying chemical reaction takes place.

14. Pack according to one of the preceding claims,

characterized,

that the reaction rate of the chemical reaction

is temperature dependent.

15. Pack according to one of the preceding claims,

characterized,

the functional element is permanently active after a first activation or permanently deactivated.

16. Closure of a pack with

at least one at least electrical or electrochemical

Functional element and

at least one actuating element,

characterized, a relative movement between the actuating element and the packaging material changes an electrical or electrochemical state of the functional element.