NL2018149B1 - Flexible tamperproof suitcase locker - Google Patents

Abstract

The present invention is in the field of a flexible tamperproof suitcase locker, which is made of a flexible foil, a method of applying said suitcase locker, and various further applications thereof. Typically the present suitcase locker is of a one size fits all dimension, hence applicable to each and every suitcase. Further the foil typically has a clearly recognizable and differentiating print or the like.

Description

FIELD OF THE INVENTION

The present invention is in the field of a flexible tamperproof suitcase locker, a method of applying said suitcase locker, and various further applications thereof.

BACKGROUND OF THE INVENTION

The present invention is in the field of a flexible tamperproof suitcase locker.

Suitcase may suffer from tampering especially during unattended transport thereof, such as on an airport, in an airplane, in a bus, and on a train. At the one end goods from a suitcase may be stolen, and at the other end goods may be added to a suitcase unwanted, such as illegal goods. Typically suitcase can be locked or provided with a lock. Such a lock is typically inadequate to prevent tampering. More important, tampering can not be noted.

In example of a locker is found in US 8,388,025 B2. Therein a strip for tamper evidencing has a first layer and one or more reinforcing layers. An adhesive is provided on a first portion of the strip to selectively adhere the first portion of the strip onto the first layer of a second portion of the strip, wherein the first layer is such that removal or attempted removal of the first portion of the strip from the second portion of the strip will be evidenced by the first layer. The reinforcing material is arranged such that portions of it are bonded to each other at a plurality of locations spaced along the length of the strip. The strip is for application on a zip, a zip slider, and a zip tab. It has been found that the strip is not always fail proof, does not always provide tamper evidence, and the strip and especially an identifier may get damaged upon use and as a consequence loosing functionality. In an alternative thereto (US 8,474,584 B2) a buckle type of relatively small strip of reinforced material is provided and therefore has limited applicability.

In an alternative a suitcase can be fully wrapped in a foil, typically a number of times. At for instance airports such wrapping is provided in the form of machines, but wrapping is rather time consuming and lots of foil is used which later needs to be disposed of. Also hard covers or the like may be provided. Typically suitcase lockers are (somewhat) difficult to apply.

In addition suitcase often get lost or need to be relocated at a late instance, leading to e.g. flight delays.

In another aspect it is found difficult to provide prints on a foil, especially digital prints. Typically requirements for digital printing do not match those of foils, and are in fact mostly contradictory. For instance, for digital printing a UV-curing ink may be used, whereas UV typically degrades polymers of which foils are typically formed. A similar problem arise with a surface of typical foils, which is found unsuited to provide good printing properties, such as for providing a name or tag to the suitcase.

The present invention therefore relates to an improved suitcase locker, which solves one or more of the above problems and drawbacks of the prior art, providing reliable results, without jeopardizing functionality and advantages.

SUMMARY OF THE INVENTION

The present invention relates to a flexible and tamperproof suitcase locker 100 according to claim 1. Therein a digitally printable foil 10 is provided. It has been found very difficult to provide a foil which can be printed in a digital way, such as by using an inkjet printer or the like. Such is especially in view of providing personal details of a user in a digital manner, such as name, address, flight details, bar codes, two-dimensional codes such as QR-codes, etc. In addition it would be an advantage if a clearly recognizable and differentiating print or the like could be provided; as such an owner could recognize his/her suitcase almost immediately when e.g. the suitcase is amongst other similar suitcases, such as on a conveyer belt in an airport. Such a recognizable print could help limiting time needed and therewith reducing risks such as of acts of terrorism or illegal activities. In order to be digitally printable, or likewise having properties comparable to paper and therewith making handwriting possible as well, the present foil is provided with a relatively large amount of inorganic filler. Typically the present foil may be treated before printing, such as by an oxidative treatment, such as with ozone, a peroxide, or the like.

This further treatment has been found to improve properties of a foils on a microscopic scale, such that pores have better and more homogeneous properties. Such is found to provide good printing properties in terms of adherence for typical inkjets to the surface of the foil; in addition the filler is found not to disturb the curing process of a typical ink significantly. Upon curing a temperature of the ink is typically raised to 30-70 °C locally; therefore the foil should be capable of withstanding increased temperatures and should not deform significantly. In addition curing is typically performed by using UV-light and therefore a suitable polymer should be selected for such applications which does not significantly degrade or partly degrades upon application of said UV-light. When typical printing is used an initial foil is printed at relatively high speed, which printing poses restrictions to a foil material in various aspects as well. With digital printing high resolution prints can be provided, which prints could be varied from foil segment to foil segment.

In order to provide a tamperproof locker the foil is typically of a width large enough to span a width of a suitcase substantially, is long enough to wrap a suitcase, and thick enough to be tamperproof; preferably a one size fits all foil is provided. The foil therefore has a width of 7-50 cm, preferably 10-45 cm, more preferably 15-40 cm, such as 20-35 cm, e.g. 30-33 cm, a length of 150-200 cm, preferably 160-195 cm, such as 170-190 cm, e.g. 175-180 cm, and a thickness of 40-200 pm, preferably 50-150 pm, more preferably 60-120 pm, such as 80-100 pm. The foil is preferably as thin as possible, and should be strong enough to be tamperproof. The present foil typically does not require a further reinforcing layer or material as the foil is strong enough in itself. The present foil typically is made of a single layer. In order to apply the foil in such a way that it can not be removed without deforming the foil noticeably, an adhesive 20 is provide at at least one longitudinal end thereof (e.g. top or bottom when placed in portrait mode/upright). Typically the adhesive is provided after digitally printing the foil. The adhesive is used to adhere a top end of the foil to a bottom end, after wrapping the foil around a suitcase, wherein adherence typi cally takes place by adhering a backside of the foil to a front side thereof. In view of forces that may be applied to the foil one end of the foil may be in a triangular shape, in order to increase a surface are comprising adhesive. The bond provided by adhering is so strong (e.g. a direct adhesive strength of >25 N/cm², such as > 50 N/cm², an adhesive strength after 10 minutes after application of >30 N/cm², such as > 60 N/cm², and an adhesive strength after 60 minutes after application of >40 N/cm², such as > 80 N/cm²,) that effectively it can not be broken, at least not under typical conditions, and certainly not without noticeably deforming the foil. In addition the foil can be wrapped so tightly around the suitcase that it can not be slid of; in this sense the foil may be regarded as being united with the suitcase. It is noted that the foil also deforms when someone tries to remove the seal by applying too much heat. Thereto the foil is also of a sufficiently flexible material. Therefore if an attempt is made to tamper the suitcase or removing the foil such can immediately be seen.

In a second aspect the present invention relates to a method of applying the present suitcase locker by wrapping the locker around the suitcase and adhering the two ends to one and another, and optionally scanning the identifier, such as at a distance of 0.1-500 cm (i.e. at a distance when substantially contacting when scanning to a relatively small distance) . These steps may be repeated e.g. if more than one suitcase is provided. By using an RFID identifier or the like scanning can be performed. The identifier is typically a unique identifier, such that each and every suitcase c.q. identifier can be determined on an individual basis. As such the suitcase and its owner can be determined in a unique manner. Such may for instance be relevant in order to determine tampering, loss of a suitcase, relocating a suitcase, etc. In addition such a unique identifier may speed up processes such as on an airport when checking in, when processing suitcases, etc. significantly.

Thereby the present invention provides a solution to one or more of the above mentioned problems and drawbacks.

Advantages of the present description are detailed throughout the description.

DETAILED DESCRIPTION OF THE INVENTION

The present invention relates in a first aspect to a suitcase locker according to claim 1.

In an exemplary embodiment of the present suitcase locker the foil comprises a wireless identifier 30 attached thereto, such as by adhering or integrating into the foil, wherein the identifier is adapted to provide wireless communication selected form at least one of RF, near field (NF), near infra-red, preferably at least RF and NF. The identifier typically comprises a tag, a reader and a so-called back-end, such as a database. It may operate in tag-emulation or passive mode, an active mode such as a reader, and a so-called peerto-peer mode such as when communication between two devices. As such the identifier can be scanned wireless, such as by a smart phone, a scanner, etc. The identifier may be a passive identifier, such as comprising a coil and/or capacitor, for receiving power wireless. The identifier typically comprises a transmitter for communicating its identity to an outside world. The wireless communication typically is established over a short distance or upon direct contact, such as by placing a scanner on the identifier. A short distance typically relates to no or a few cm up to a few meter, i.e. at close distance, preferably 1 cm-300 cm, more preferably 2 cm-200 cm, even more preferably 5 cm-150 cm, such as 10-50 cm. Therewith the identity of the suitcase as well as of its owner can be established quickly and reliably.

In an example the identifier of the tracking device comprises a NFC (Near Field Communication) operating at a 13.56Mhz frequency, ISO/IEC 14443A -3 compliant and NFC Forum Type 2 compatible, and an RFID (Far Field Communication) operating at a 860 to 960 MHz frequency, ISO/IEC 18000-63 compliant, EPC Gen2 V2 compliant - Alteration EAS compliant - Tag Alteration (Core) compliant. An identifier chip may be manufactured with a 96-bit unalterable unique identifier (UID) to ensure full traceability. The same UID number is used by both RF protocols. The identifier may have an extra build-in tamper evident safety feature: An attempt to remove the chip will re suit in a delamination (disintegration) of the NFC module while the RFID module will remain fully functional.

In an exemplary embodiment of the present suitcase locker the foil comprises pores and/or comprises pores after treatment, such as an oxidative treatment, such as with ozone, or with a corona treatment, preferably pores in a size range of 100-2500 nm, more preferably 200-1000 nm, such as 300-800 nm. In addition to the present filler the pores are found to provide good properties for applying an ink, such as from an ink jet, to the surface of the present foil.

In an exemplary embodiment of the present suitcase locker the foil has an ultimate tensile strength (ISO 1184, 25 °C c.q. ISO 527-3) of 5-100 MPa, preferably 7-75 MPa, more preferably 10-50 MPa, such as 20-40 MPa, and/or wherein the foil has a Young's modulus of < 2.5 GPa, preferably < 2.0 GPa, more preferably < 0.7 GPa, even more preferably < 0.5 GPa, and/or wherein the foil has an elongation at break (ISO 1184) of > 50%, preferably > 100%, more preferably > 250%, even more preferably > 500%, such as > 750%, and/or wherein the foil has a density of 1-1.2 g/cm³, preferably 1.05-1.15 g/cm³, such as 1.09-1.11 g/cm³, and/or wherein the foil has a coefficient of friction (film to film, un-treated side to untreated side;

ISO 8295) of 0.2-0.4 (dynamic), preferably 0.25-0.35, such as 0.28-0.32 and 0.3-0.5 (static), preferably 0.35-0.45, such as 0.38-0.42, and/or a water vapor transmission rate (ASTM E-96-00 23 °C, 85% RH) of 50-80 g/m²day, such as

60-70 g/m²day, and/or an impact resistance (dart value ISO 7765-2) of >250 gram, preferably > 400 gr, such as 450-600 gr, and/or an oxygen transmission rate (ASTM D-3985-95, Measured O2GTR cc/m².day) of 100-600, preferably 150-500, such as 200400. As such the foil provide good tamperproof properties, which may be combined suitably with its excellent printing properties and adhesive properties of the adhesive. The foil in addition may have a paper like appearance and behavior, especially in view of digital printing. The present foil has excellent folding properties, perfect printing applications, a UV light barrier, a very high tensile strength, a high tearing resistance, a high barrier for oxygen and good vapor permeability .

In an exemplary embodiment of the present suitcase locker the foil is stable under application of a light frequency of 300-400 nm, preferably 350-390 nm, such as 360-380 nm. Such may be relevant when applying a curable ink, such as an ink jet ink, which ink is cured at wavelength that also might degrade a polymer c.q. a foil.

In an exemplary embodiment of the present suitcase locker the foil has a glass transition temperature of < 60°C, and/or a melt temperature of > 70 °C. Such may be relevant in view of application conditions of an ink such as in an ink jet device .

In an exemplary embodiment of the present suitcase locker the inorganic filler is selected from calcium oxide, calcium carbonate, clays, preferably silica-alumina clays, silica, talc, and combinations thereof. The filler preferably has an average grain size (such as measured by light scattering at 400 nm and 25 °C and a relative humidity of 60% or less) of 100-5000 nm, more preferably 200-2500 nm, such as 500-2000 nm.

In addition the present foil may comprise further additives, such as pigments, dyes, colorants, stabilizers, antifouling agents, biocides, fungicides, bactericides, metals, etc .

In an exemplary embodiment of the present suitcase locker the polymer is selected from polyolefines, such as polypropylene, polyethylene, biodegradable polymers, biobased polymers, such as alginate, and combinations thereof.

In an exemplary embodiment of the present suitcase locker the foil further comprises an opening for a suitcase handle or a removable foil section for the handle. The suitcase handle may also relate to an extendable handle. As such the foil can be wrapped even more firmly around a suitcase.

In an exemplary embodiment of the present suitcase locker the identifier is a laminate, wherein a near field communicator and chip are adhered to a first layer of the laminate and wherein the RFID and antenna are adhered to a second layer of the laminate such that upon delamination the NCF and chip are at least partly separated from the RFID. Therewith functionality of the NFC and chip is maintained when delaminated, allow ing identifying of the suitcase and location thereof, whereas the RFID functionality is at least partly lost, identifying an attempt of tampering.

In an exemplary embodiment of the present suitcase locker the adhesive is selected from solvent based pressure sensitive adhesives, such as of a dispersion type, contact adhesives, such as a polyurethane contact adhesive, two component adhesives, such as two-part polyurethane or epoxy adhesives, and hot melt adhesives, such as vinyl acetate copolymer adhesives or elastomer adhesives. The present adhesive may be protected by a release-liner. It is noted that for polyolefines such as polyethylene adhesives and solvents are rarely used because polyolefines are typically nonpolar and have a high resistance to solvents. Pressure-sensitive adhesives (PSA), such as a polyurethane contact adhesive, are especially feasible if the surface is flame treated or corona treated. In view of an adhesive applied it is noted that the above treatment also improves the adhesive properties of the present foil significantly, such as with 30-200% relative. In an example the adhesive is applied in an amount of 250-500 g/m², such as 300-400 g/m², in a typical thickness of 0.1-0.5 mm, such as 0.2-0.4 mm, and is applied with a force of 1-2 kg/cm², such as 1.5-1.7 kg/cm². An example thereof is BEKO Stripfix®. In view of the digital printing process and sometimes instability of the adhesive under UV the adhesive is applied to the present Suitlocker after printing.

In a second aspect the present invention relates to a method of claim 12. By scanning the identifier the unique code may be entered into a database. Therein the unique code may be combined with further information of the owner, such as personal data, as well as travel data.

In an exemplary embodiment of the present method the unique code is coupled to flight and/or personal data. The scanned identifier code may be coupled to an IMEI number of a smart phone used, and/or the code may be coupled to a SIM number (Phone number) of the phone used. Said personal and flight data may be shared with further parties, such as parties involved in handling the suitcase. Even further by sharing said data an owner and its suitcase is known and as a consequence various handling processes such as on an airport can be performed much quicker. As such a route which a suitcase travels can be secured better and a chance of a suitcase of travelling from its departure to its destination safely in increased.

In an exemplary embodiment of the present method the unique code of the identifier is entered into a database.

In an exemplary embodiment of the present method a location of the suitcase is followed over time by wireless determining the location of the identifier. Such determination can be performed on an ad hoc basis, such as when a suitcase needs to be taken apart, or on a scheduled or predetermined basis, such as when passing through various stages of transportation .

In an exemplary embodiment of the present method the suitcase locker is visually or optically scanned for tampering. Such can be performed on an ad hoc basis, such as when a suitcase needs to be taken apart, or on a scheduled or predetermined basis, such as when passing through various stages of transportation or at the end when the owner receives the suitcase again.

The one or more of the above examples and embodiments may be combined, falling within the scope of the invention.

FIGURES

Figures la-h: schematic layout, application and scanning of

		the present suitlocker	100 .
Figure	2 :	schematic layout	of	an	exemplary	identifier .
Figure	3:	schematic layout	of	an	exemplary	identifier .
Figure	4 :	flow diagram.
		DETAILED DESCRIPTION	OF	THE	FIGURES

Figures la-c: schematic layout of the present suitlocker 100. Therein a foil 10, an adhesive 20 provided at a back side thereof, a removable strip 21 on the adhesive, a wireless identifier 30 and an opening 40 are shown. Figures ld-f show application of the present suitlocker on a suitcase. Figures lg-h show wireless scanning of the present suitlocker. Figure 2: schematic layout of an exemplary identifier. Therein two layer of a laminate are shown.

Figure 3: schematic layout of an exemplary identifier. Therein an IC EM4423 (of EM Microelectronic Marin SA)with a 1920 bit memory, a face material a, an antenna of aluminum b operating at 860-960 MHz, a PET substrate c, an adhesive RA-5 d, and a blacking paper with silicon liner e are shown. Figure 4: shows a flow diagram with typical elements when travelling with in this case an airplane.

EXAMPLE

The invention is further detailed by the accompanying example, which is exemplary and explanatory of nature and are not limiting the scope of the invention. To the person skilled in the art it may be clear that many variants, being obvious or not, may be conceivable falling within the scope of protection, defined by the present claims.

The table below present typical actions taken on an airport and by a user/traveler. In addition it shows tracking and tracing of the present suitcase and hence functionality of the present suitcase locker, (table part 1, left part)

	Location	Event	Action	Function
Step 1	Home	Baggage packing	Apply sleeve	Seal baggage
				Increase identification (personal/object)
			Create personal account
			Fill in Flight Data	Pair Flight Data (E-ticket)
			Add Sleeve	Add Sleeve ID (NFC serial code)
			Add extra Sleeves (if applicable)	Add extra Sleeves ID (NFC serial code)
			Check-in	Check-in as passenger (PNR)
				Measures distance to airport
				Calculates time to travel to airport
				Shows boarding countdown timer
Step 2	Transit	Travel to airport	Geographical movement	Measures distance to airport
				Calculates time to travel to airport
				Shows boarding countdown timer
				Show travel status & best travel options

Step 3	Arrival	Arrival at airport	Entering Airport premises
			Start of Suitlocker invenue navigation (App)	Measure distance to baggage drop-off/terminal
				Guide to baggage drop-off point
			Start of airport baggage tracking (when in use)	Show baggage location (on user request)
				Calculates time to boarding call
				Show boarding countdown timer
Step 4	Stroll time	Start of Aiport Passenger Experience	Entering passenger waiting area	Calculates time to boarding call
				Show boarding countdown timer
				Show in-app gestures (advertising, duty-free shopping, food & beverage)
Step 5	Boarding	Start of boarding process	Passenger enplanement
				Calculates time to boarding call
				Show boarding countdown timer
			Boarding	Show baggage status
		Start of In-Flight modus	Passenger In-Flight
Step 6	Destination	Arrival at destination	Entering Airport premises
			Start of Suitlocker invenue navigation (App)	Measure distance to baggage caroussel
				Guide to baggage baggage caroussel
			Start of airport baggage tracking (when in use)	Show baggage location (on user request)
Step 7	Pick-Up	Baggage Pick-Up	Actual baggage Pick-Up from carrousel	Allow mobile phone to scan NFC tag
				Show travel status & best invenue navigation options
Step 8	Transit	Travel from airport to final destination	Geographical movement	Show travel status & best travel options

Table part 2 (right part)

Background Process (Suitlocker Database)	Airport	Airline	Customs/ Security	Third Party
					Step 1
Create User Data Record (UDR)
Add Flight Data to UDR
Add NFC serial code to UDR
NFC serial code database lookup, compare with RFID code, add to UDR
NFC serial code database lookup, compare with RFID code, add to UDR
Complete UDR
Change user status	Send CheckedIn status to Airport	Send Checked-In status to Airline	Send Checked-In status
Change NFC/RFID tag status	Send baggage status to Airport	Send baggage status to Airline	Send baggage status
	Send baggage data to Airport	Send baggage data to Airline	Send baggage data
Monitor actual Flight Data events/changes
Monitor traffic events/changes
Monitor actual Flight Data events/changes					Step 2
Monitor traffic events/changes
Calculate best travel options
					Step 3
Monitor actual Flight Data events/changes
Record baggage drop-off	Send baggage drop status to Airport	Send baggage drop status to Airline	Send baggage drop status
Compare boarding data, personal data & baggage data				Open passenger profile for LBS/LBM

Start baggage tracking	(Retrieve baggage status)	(Retrieve baggage status)	(Retrieve baggage status)
Monitor actual Flight Data events/changes
Monitor boarding events/changes					Step 4
Monitor actual Flight Data events/changes
Calculate best boarding gate naviagtion options					Step 5
Compare boarding data, personal data & actual in-venue location
Monitor actual Flight Data events/changes
Monitor boarding events/changes
Change to In-Flight modus	Compare passenger status with boarding list	Compare passenger status with boarding list	Changes passenger status & boarding list	Change passenger profile for IFE
Change to destination modus					Step 6
Monitor actual baggage events/changes
Record baggage unloading	Send baggage status to Airport	Send baggage status to Airline	Send baggage status
Compare boarding data, personal data & baggage data				Open passenger profile for LBS/LBM
Start baggage tracking	(Retrieve baggage status)	(Retrieve baggage status)	(Retrieve baggage status)
Monitor actual baggage events/changes
Compare boarding data, personal data & baggage data					Step 7
Record baggage Pick-Up (RFID scan leaving baggage area towards customs/exit)	Record baggage Pick-Up	Record baggage Pick-Up	Record baggage Pick-Up

				Change passenger profile for LBS/LBM
Open to connect-to/retrieve 3rd party data/software	Send CheckedOut status to Airport	Send Checked-Out status to Airline	Send Checked-Out status	Change passenger profile for LBS/LBM	Step 8

For the purpose of searching prior art the following section is added, representing a translation of the last section in English:

1. Flexible tamperproof suitcase locker (100) comprising a digitally printable foil (10), wherein the foil has a width of 7-50 cm, a length of 150-200 cm, a thickness of 40-200 pm, wherein the foil comprises at least one polymer and

10-50 wt. % inorganic filler, wherein all wt. % are based on a total weight of the foil, wherein at at least one longitudinal end thereof the foil is provided with an adhesive (20), preferably a pressure sensitive adhesive, and a removable strip (21)covering said adhesive, which adhesive upon application provides a bond between two ends that has a strength such that the bond can not be broken without deforming the foil.

2. Suitcase locker according to embodiment 1, wherein the foil comprises a wireless identifier (30) attached thereto, wherein the identifier is adapted to provide wireless communication selected form at least one of radio frequency (RF), near field (NF), near infra-red, preferably at least RF and NF.

3. Suitcase locker according to any of the preceding embodiments, wherein the foil comprises pores and/or comprises pores after treatment, such as oxidative or with a corona, preferably pores in a size range of 100-2500 nm.

4. Suitcase locker according to any of the preceding embodiments, wherein the foil has an ultimate tensile strength (ISO 1184, 25 °C) of 5-100 MPa, preferably 7-75 MPa, such as 20-40 MPa, and/or wherein the foil has a Youngs modulus of < 2.5 GPa, preferably < 2.0 GPa, more preferably < 0.7 GPa, even more preferably < 0.5 GPa, and/or wherein the foil has an elongation (ISO 1184)at break of > 50%, preferably > 100%, such as > 250%, and/or wherein the foil has a density of 1-1.2 g/cm³, and/or wherein the foil has a coefficient of friction (film to film, un-treated side to untreated side; ISO 8295) of 0.20.4 (dynamic), preferably 0.25-0.35, such as 0.28-0.32 and 0.3-0.5 (static), preferably 0.35-0.45, such as 0.38-0.42.

5. Suitcase locker according to any of the preceding embodiments, wherein the foil is stable under application of a light frequency of 300-400 nm.

6. Suitcase locker according to any of the preceding embodiments, wherein the foil has a glass transition temperature of < 60°C, and/or a melt temperature of > 70 °C.

7. Suitcase locker according to any of the preceding embodiments, wherein the inorganic filler is selected from calcium oxide, calcium carbonate, clays, preferably silicaalumina clays, silica, talc, and combinations thereof.

8. Suitcase locker according to any of the preceding embodiments, wherein the polymer is selected from polyolefines, such as polypropylene, and polyethylene, biodegradable polymers, biobased polymers, and combinations thereof.

9. Suitcase locker according to any of embodiments 2-8, wherein the identifier is a laminate, wherein a near field communicator and chip are adhered to a first layer of the laminate and wherein the RFID and antenna are adhered to a second layer of the laminate such that upon delamination the NCF and chip are at least partly separated from the RFID.

10. Suitcase locker according to any of the preceding embodiments, wherein the foil further comprises an opening (40) for a suitcase handle or a removable foil section for the handle .

11. Suitcase locker according to any of the preceding embodiments, wherein the adhesive is selected from solvent based pressure sensitive adhesives, contact adhesives, two component adhesives, and hot melt adhesives.

12. Method of tracking a suitcase locker according to any of the preceding embodiments, comprising providing a suitcase, applying the suitcase locker to the suitcase by wrap5 ping the locker around the suitcase and adhering the two ends to one and another, and optionally scanning the identifier therewith providing a unigue code, such as at a distance of 0.1-500 cm.

13. Method according to embodiment 12, wherein the unigue code is coupled to flight and/or personal data.

14. Method according to embodiment 12 or 13, wherein the unigue code of the identifier is entered into a database.

15. Method according to any of embodiments 12-14, wherein a location of the suitcase is followed over time by wireless determining the location of the identifier.

16. Method according to any of embodiments 12-15, wherein the suitcase locker is visually or optically scanned for tampering .

Claims (16)

CONCLUSIONS A flexible interference-free case valve (100), comprising a digitally printable film (10), wherein the film has a width of 7-50 cm, a length of 150200 cm, a thickness of 40-200 gm, the film having at least one polymer and 10-50% by weight of inorganic filler, all% by weight being based on total weight of the film, wherein at least one longitudinal end thereof the film is provided with an adhesive (20), preferably a pressure-sensitive adhesive and a removable strip (21) covering said adhesive, wherein the adhesive when applied provides a bond between two ends that has a strength such that the bond cannot be broken without deformation of the film. 2. Case valve according to claim 1, wherein the foil comprises a wireless identifier (30) attached thereto, wherein the identifier is adapted for wireless communication selected from at least one radio frequency (RF), near field (NF), near infrared, preferably at least least RF and NF. 3. Case valve as claimed in any of the foregoing claims, wherein the foil comprises pores and / or comprises pores after treatment, such as oxidation or with a corona, preferably pores in a size range of 100-2500 nm. Case valve according to one of the preceding claims, wherein the foil has a tensile strength (ISO 1184, 25 ° C) of 5-100 MPa, preferably 7-75 MPa, such as 20-40 MPa, and / or wherein the foil has an elastic modulus of <2.5 GPa, preferably <2.0 GPa, more preferably <0.7 GPa, even more preferably <0.5 GPa, and / or wherein the film has an elongation (ISO 1184) at break of> 50%, preferably> 100%, such as> 250%, and / or wherein the film has a density of 1-1.2 g / cm ³ , and / or wherein the film has a coefficient of friction (film to film, untreated side untreated side; ISO 8295) of 0.2-0.4 (dynamic), preferably 0.25-0.35, such as 0.28-0.32, and 0.30.5 (static), at preferably 0.35-0.45, such as 0.38-0.42. 5. Case valve according to one of the preceding claims, wherein the foil is stable using a light frequency of 300-400 nm. 6. Case valve according to one of the preceding claims, wherein the film has a glass transition temperature of <60 ° C, and / or a melting temperature of> 70 ° C. 7. Case valve according to one of the preceding claims, wherein the inorganic filler is selected from calcium oxide, calcium carbonate, clays, preferably silica-alumina clays, silica, talc, and combinations thereof. A suitcase valve according to any one of the preceding claims, wherein the polymer is selected from polyolefins such as polypropylene and polyethylene, biodegradable polymers, biobased polymers, and combinations thereof. The case valve of any one of claims 2-8, wherein the identifier is a laminate, wherein a near field communicator and chip are attached to a first layer of the laminate and wherein the RFID and antenna are attached to a second layer of the laminate so that in the event of delamination, the NCF and chip are at least partially separated from the RFID. A suitcase valve according to any one of the preceding claims, wherein the foil further comprises an opening (40) a suitcase handle or a removable foil part for the handle. The trunk valve of any preceding claim, wherein the adhesive is selected from solvent-based pressure sensitive adhesives, contact adhesives, two-component adhesives, and hot melt adhesives. A method for following a case valve according to any one of the preceding claims, comprising providing a case, arranging the case valve around the case by wrapping the valve around the case and adhering the two ends together, and possibly scanning the identifier thereby providing a unique code, for example at a distance of 0.1500 cm. The method of claim 12, wherein the unique code is linked to flight and / or personal data. A method according to claim 12 or 13, wherein the unique code of the identifier is entered in a database. The method of any one of claims 12-14, wherein a location of the case is tracked over time by wirelessly determining the location of the identifier. The method of any one of claims 12-15, wherein the case valve is visually or optically scanned for interference. 1/5 100 2/5 3/5 FIG. lg 4/5