CN108140103A - The gas-discoloration fiber and content of safe object - Google Patents

The gas-discoloration fiber and content of safe object Download PDF

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Publication number
CN108140103A
CN108140103A CN201580083239.2A CN201580083239A CN108140103A CN 108140103 A CN108140103 A CN 108140103A CN 201580083239 A CN201580083239 A CN 201580083239A CN 108140103 A CN108140103 A CN 108140103A
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Prior art keywords
security feature
gas
safe object
change
environment
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纳比尔·劳安迪
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Spectra Systems Corp
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Spectra Systems Corp
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B42BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • B42DBOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
    • B42D25/00Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
    • B42D25/30Identification or security features, e.g. for preventing forgery
    • B42D25/36Identification or security features, e.g. for preventing forgery comprising special materials
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B42BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • B42DBOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
    • B42D25/00Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
    • B42D25/20Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof characterised by a particular use or purpose
    • B42D25/29Securities; Bank notes
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B42BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • B42DBOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
    • B42D25/00Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
    • B42D25/30Identification or security features, e.g. for preventing forgery
    • B42D25/36Identification or security features, e.g. for preventing forgery comprising special materials
    • B42D25/378Special inks
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B42BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • B42DBOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
    • B42D25/00Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
    • B42D25/30Identification or security features, e.g. for preventing forgery
    • B42D25/36Identification or security features, e.g. for preventing forgery comprising special materials
    • B42D25/378Special inks
    • B42D25/382Special inks absorbing or reflecting infrared light
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B42BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • B42DBOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
    • B42D25/00Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
    • B42D25/30Identification or security features, e.g. for preventing forgery
    • B42D25/36Identification or security features, e.g. for preventing forgery comprising special materials
    • B42D25/378Special inks
    • B42D25/387Special inks absorbing or reflecting ultraviolet light
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N15/00Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
    • G01N15/08Investigating permeability, pore-volume, or surface area of porous materials
    • G01N15/082Investigating permeability by forcing a fluid through a sample
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F21/00Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06VIMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V20/00Scenes; Scene-specific elements
    • G06V20/80Recognising image objects characterised by unique random patterns
    • GPHYSICS
    • G07CHECKING-DEVICES
    • G07DHANDLING OF COINS OR VALUABLE PAPERS, e.g. TESTING, SORTING BY DENOMINATIONS, COUNTING, DISPENSING, CHANGING OR DEPOSITING
    • G07D7/00Testing specially adapted to determine the identity or genuineness of valuable papers or for segregating those which are unacceptable, e.g. banknotes that are alien to a currency
    • G07D7/06Testing specially adapted to determine the identity or genuineness of valuable papers or for segregating those which are unacceptable, e.g. banknotes that are alien to a currency using wave or particle radiation
    • G07D7/12Visible light, infrared or ultraviolet radiation
    • G07D7/1205Testing spectral properties
    • GPHYSICS
    • G07CHECKING-DEVICES
    • G07DHANDLING OF COINS OR VALUABLE PAPERS, e.g. TESTING, SORTING BY DENOMINATIONS, COUNTING, DISPENSING, CHANGING OR DEPOSITING
    • G07D7/00Testing specially adapted to determine the identity or genuineness of valuable papers or for segregating those which are unacceptable, e.g. banknotes that are alien to a currency
    • G07D7/20Testing patterns thereon
    • G07D7/202Testing patterns thereon using pattern matching
    • G07D7/205Matching spectral properties

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • General Health & Medical Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Theoretical Computer Science (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Toxicology (AREA)
  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Computer Hardware Design (AREA)
  • Computer Security & Cryptography (AREA)
  • Software Systems (AREA)
  • General Engineering & Computer Science (AREA)
  • Biochemistry (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Business, Economics & Management (AREA)
  • Accounting & Taxation (AREA)
  • Finance (AREA)
  • Multimedia (AREA)
  • Investigating, Analyzing Materials By Fluorescence Or Luminescence (AREA)
  • Investigating Or Analysing Materials By The Use Of Chemical Reactions (AREA)

Abstract

The present invention discloses safe object and the method and system for verifying safe object using multiple stimulants.According to one embodiment, illustrative safe object includes embedded feature, and the difference activation of wherein phosphorescence or fluorescent material forms machine readable response by electromagnetic radiation source with existing while specific gas environment.Detector detects the difference spectrum as caused by the change of gaseous environment across the security feature and emits.The spectral emissions can be compared to determine to the authenticity of the safe object with expected radioactive mark.

Description

The gas-discoloration fiber and content of safe object
Background technology
The present invention relates generally to the detectable safety labels through gas activation.More specifically, the present invention relates to In the safe object of thin apparent size being embedded in substrate, the safe object has after specific gas environment is exposed at once The light absorption and emission characteristics of change.
Personation and forgery have become the serious concern in modern economy and market.The progress of computing technique and printing technology is Increase the incidence of counterfeit, counterfeit documents and other fraudulent activities.The countless fields of high-tech society now need and Dependent on the certification, verification and protection to highly valuable document, paper, currency and other materials.Therefore, it is necessary to by safety post Note is incorporated into currency, important documents, packaging and other authentic materials to prevent unauthorised copies, forgery, personation and other take advantage of Swindleness uses.
There are similar problems in various environment.Other than taking precautions against counterfeit money, to the verification of valuable document or material also Influence economic many aspects.Such as the verification stamp of visa or postmark (for example) is used and is forged by fraud.It moreover, can Various products and the consumer goods are generated as the cheap alternative of mountain vallage or grey-business commodity.Notary verifies warp using protrusion stamp Notarization document.Driver's license, passport and other photographic identifications contain hologram and micro printing.Sport souvenir and retail clothier Carry out secondary proof authenticity using holographic label and stamp.Even fashion designer now in its clothes add in verification device to prevent The only counterfeit designer's product of mountain vallage product.
The current method of currency validation is related to estimating, is scanned under extreme ultraviolet lamp, the bank note containing safety line and example Such as ink and the radioactive material of coin base.Such safety line in response to be exposed to extreme ultraviolet light and emit not isolabeling, color or Code.In some cases, the radiation characteristics of the bank note of different denominations can emit different colours.In addition to transmitting color it Outside, code name or other unique identifiers visually be can detect when bank note is exposed to the excitation of extreme ultraviolet light or a certain form.
The shortcomings that most of conventional security features is:It is visible and makes known publicly.If personator is known in banknote There are there are watermarks in safety line or document, then the duplication of security feature is easier.Once feature is made to make known publicly, palm off The safeguard protection that person can start to develop specific policy and solution that special characteristic is overcome to be provided.Make counterfeit and personation Document is formed and the method for perfectionization has become easily and with highly complex computer printing and the appearance handled and more It can use.Early in 1991, safe feature was added continuously to denomination to attempt confrontation counterfeit money by the Treasury Department of USA Use.These guarantees have included making for watermark, the safety line being embedded in paper, micro printing, color shifting ink and polychrome banknote With.
Therefore, it is necessary to further reduce the security feature of the successful possibility of personator, even if it knows security feature In the presence of.It needs further exist for being formed by least one emitter embedded through secret coded markings, at least one emitter It responds to form the machine readable response that human eye can not detect in different ways when being exposed to two variation stimulants.
Invention content
The embodiment of the present invention is verified the method for safe object comprising safe object and using multiple stimulants and is System.According to one embodiment, illustrative security feature is included is lived by existing while electromagnetic radiation source and specific gas environment Change phosphorescence or fluorescent material.Therefore, radiation and gas are used as the first stimulant and the second stimulant.
Safe object (such as the safe object of those described herein) can need more than one stimulant (for example, light And the application of both gaseous environments) detect verification feature.Further, these safe objects can have can with publicity pattern, The security feature used with clandestine manner or in two ways, that is, have for the first response of open access and for secret The second response used.
In one embodiment, the present invention relates to safe objects.The safe object may include host material, the host Material includes being incorporated on the host material or interior through gas activation security feature, wherein described through gas activation Special safety Sign can emit the spectral emissions changed at once after the change of the gaseous environment through gas activation security feature is exposed to. The host material may include polymer, paper or fabric.The host material may include response type part and non-response formula part, It is wherein described be incorporated into through gas activation security feature it is on the response type part or interior.The host material may include referring to Security feature.In this case, the security feature and described change with reference to described in security feature can be exposed to gaseous environment At once emit different spectral emissions after change.Moreover, in this case, the security feature and the reference security feature can be sudden and violent Emit equivalent spectrum transmitting at once after being exposed to the change of gaseous environment.Further, the response of the security feature can The porosity of the host material is indicated based on the response of the security feature.
It is described to may include through gas activation security feature selected from the material and ambient source of group being made of fluorescent material, It is used to originate the change in the gaseous environment through gas activation security feature;And detector, it is used to detect by gas The spectral emissions through gas activation security feature caused by the change of environment.The electromagnetic radiation source may include being selected from The wavelength of group being made of infrared light, visible ray and extreme ultraviolet light.The gaseous environment source can be provided selected from by the following terms The gaseous environment of the group of composition:Inert gas, water vapour, oxygen, carbon dioxide, chemical vapors and human breathing.The gas The change that ambient source can be by pressure or density or the application by vacuum provide gaseous environment.The detector system can be into one Step, which is included, to be removed gas from the gaseous environment or injects a gas into the gaseous environment change device in the gaseous environment.Institute It can be spectrometer to state detector.
Description of the drawings
It will easily understand embodiments of the invention and other aspects according to the following detailed description and the accompanying drawings, it is described attached Figure, which intends to illustrate, to be not intended to limit the present invention, and wherein:
Fig. 1 is the safe object of displaying according to an embodiment of the invention, electromagnetic radiation source, gaseous environment source and detector The illustrative embodiment of the present invention;
Fig. 2 is the illustrative graph of the spectral emissions of safe object according to an embodiment of the invention;
Fig. 3 describes gaseous environment according to an embodiment of the invention and is applied to safe object;
Fig. 4 is the illustrative graph of the spectral emissions of safe object according to an embodiment of the invention;
The gaseous environment that Fig. 5 describes alternate embodiment according to the present invention is applied to safe object;
Fig. 6 is the illustrative graph according to the spectral emissions of the safe object of the alternate embodiment of Fig. 5;
The characteristics of bar code that Fig. 7 describes alternate embodiment according to the present invention is applied to safe object;
The response of the feature of Fig. 8 depictions 7;And
Fig. 9 to 10 describes MACH CHK response;And
Figure 11 describes the embedded security feature of alternate embodiment according to the present invention.
Specific embodiment
To the present invention be more fully understood by following detailed description, following detailed description should be read in conjunction with the figure.Although The specific embodiment of the herein disclosed present invention, it should be appreciated that disclosed embodiment is only demonstrated the present invention, can be in a variety of manners To embody the present invention.Therefore, specific function details disclosed herein should not be construed as restricted, but as just power The basis of sharp claim and as in teaching those skilled in the art actually any suitably detailed embodiment with Various mode representative basis using the present invention.
The embodiment of the present invention is included in fluorescence or phosphorescence hair after application specific gas environment at once from safe object It penetrates.Specifically, the application of specific gas demonstrates unique spectral signatures of safe object.In one embodiment, by safe object Part is exposed to gaseous state excitation (that is, specific gas environment) demonstration can be so as to unique spectral emissions of the safe object of verification.According to this The embodiment of invention, the excitation of safe object may include visible ambient light or daylight or may include such as extreme ultraviolet source or infrared Other light sources such as source or electromagnet source.
The specific gas environment that safe object can be exposed to may include can result in the absorption or excitation to security feature The response type gaseous parts of change and both the non-response formula gaseous parts for not leading to this response to security feature.According to this hair Bright one embodiment, the gas for excitation can be that non-toxic and safe exposes gas, such as inert gas.According to other implementations Example, response type gaseous parts may include water vapour, oxygen, carbon dioxide or other chemical vapors or human breathing (itself and air It compares and has exhausted oxygen content).Further, response type gaseous parts can be the gas (for example) generated by forming vacuum The result of the change (such as pressure or density change) of environment.
The safe object may include to be placed on permeable host material (such as polymer material) or interior one or A variety of gas sensitives.The gas sensitive of the safe object can be ink, coating, safety line, coin base, particle, hologram or The part in the Windowing region in document or bank note.The optical emission spectroscopy of the safe object may depend on gaseous environment and from Ultraviolet light extends to infrared light.The excitation response of gas sensitive is the engagement of used molecule type, material to host material Ability and material are for the result of the permeability of the various gas componants of host material.
In an exemplary embodiment, safe object is the content for being incorporated into security document or bank note.In described Inclusion can be Boping paper slip, Boping plastic strip or coin base.In situation above, content is preferably coated with one or more gas Off-color material and one or more possible other emitter materials are caused, as described in this article.Further, the content can be Particle, such as silica, zeolite or low-density polystyrene.Further, the content can be to contain one or more The polymer fiber of gas-discoloration material and one or more possible other emitter materials, as described in this article.In polymer fiber Situation in, gas cause color changing material and emitter material can by squeeze, dye be incorporated into fiber or nervously dyeing to poly- It closes in object (such as polyester thread).
The absorption characteristic of gas sensitive changes as exposure to specific gas environment.The change of absorption characteristic can cause gas The change of the perceived color of quick material.The change of absorption characteristic in addition to ambient light or daylight or can substitute ambient light or daylight And apply or generated in the case of not applying light or electromagnetic radiation source.The light emitting or color of gas sensitive can be based on from electricity The stimulant (for example, ultraviolet light, visible or infrared light) of magnetic source is excited and is changed.Therefore, the authenticity of safe object It can be determined by the intensity for the spectral emissions for measuring security feature or its change.
In addition, gas sensitive can have the property that:It changes color based on the stimulation from electromagnet source and it is returned Relaxation or change rate during to its priming color are determined by gaseous environment.In other words, the light emitting of gas sensitive can have There is the service life depending on specific gas environment or the change to gaseous environment.Through gas activation security feature can (1) apply electricity Before magnetic radiation and/or gaseous environment in a state of nature in, (2) with apply electromagnetic radiation and/or gaseous environment simultaneously or Apply and be in after electromagnetic radiation and/or gaseous environment through in gas activation state or (3) are applying electromagnetic radiation and/or gas It is reversed after body environment to reset condition.Spectral emissions can be in reset condition, activated state and inverted-state with not Tongfang Formula responds.Therefore, the authenticity of safe object also can by measure fluorescence lifetime (that is, the spectral emissions of security feature or Its time response changed) it determines.
Detector system for analyzing the security feature in safe object may include:Electromagnetism or laser exciter;For inhaling The device of receipts, color or the spectral detection of transmitting;And gaseous environment change device, such as the pump from gas source, nozzle or spray Mouthful.Air can be aspirated around separate safe object or can be blown into specific gas composition by the gaseous environment change device On safe object.Alternatively, the gaseous environment change device may include for human breathing being blown into the suction pipe on object Sampling device.The detector system may also be able to (for example) measure peace about by the periodical excitation that light or gaseous environment carry out The time response of phase response that the spectrum of full object changes.
The spectral emissions of safe object can be used to identify and examine the authenticity of object.It can be by the way that the intensity of feature be shown Function for wavelength illustrates spectral emissions.Spectral emissions generation from exemplary secure feature has across wave spectrum The mark of detectable characteristics or pattern.According to one embodiment of present invention, security feature is enhanced so that the feature swashs Hair is formed can be through analyzing the different spectrum patterns to examine authenticity.It is scanned if based on the spectral emissions made containing the feature And it is expected radioactive mark and mismatches expected mark, then object can be counterfeit or may be tampered.If tag match It is expected that pattern or value, then document can be true.
Fig. 1 is the illustrative implementation of the present invention of the safe object of displaying, electromagnetic radiation source, gaseous environment source and detector Example.Safe object 2, which has, to be incorporated on host material 6 or interior through gas activation security feature 4.Electromagnetic radiation source 8 is by electromagnetism Radiation is directed to the safe object 2 through gas activation security feature 4.The gas of 10 start secure feature 4 of gaseous environment source The change of environment.Detector 12 is detected as the change of gaseous environment and/or light caused by being subsequently or simultaneously exposed to electromagnetic radiation Spectrum transmitting 14.
Fig. 2 shows the spectral emissions mark of security feature according to an embodiment of the invention.Specifically, Fig. 2, which describes, comes Function of the intensity responded from the radioactivity of two excitation forms (optics, an optics and gaseous state) as wavelength.First Result of the spectral signatures 16 for the optical excitation of security feature;The application of optical excitation causes more occurred frequently in specific wavelength It penetrates.Second spectral signatures 18 by optics and gaseous state exposure by generating exciting security feature simultaneously.As Fig. 2 chart in institute Displaying, the spectral signatures of the excitation comprising specific gas environment generate significantly higher radioactivity response.Detector system (such as light Spectrometer) can easily read safe object transmitting a part of the higher intensity as verification process.
Fig. 3 describes is applied to phosphor material by optics and gaseous state excitation.When being exposed to ultraviolet light or another type of electromagnetism When radiation and specific gas from spout 19, phosphor material 20 shows detectable in the region λ that light and gas are applied to Intensity 21.
According to another embodiment of the present invention, dual excitation material or coating may include in existing phosphorescence or fluorescent radiation In security feature.Fig. 4 describes spectrum chart (intensity against wavelength) according to an embodiment of the invention.First spectral signatures 22 are in light Show unique designation under and gaseous state excitation.The first spectral emissions (for example) of chromophore generate under setted wavelength to be had The mark of unique and definable feature.In the example shown in Fig. 4, decline (absorption) and the peak value (hair in spectral emissions Penetrate) it is happened at certain wave strong point.These declines and peak value pair and human eye are undetectable arrive;However, it is characterized in machine readable , so as to only need the use of spectrometer or other detector systems.Second spectral emissions 24 show the non-response of gaseous environment The effect of formula part, therefore highlight based on the extra spectra for applying optics and gaseous state excitation in spectral signatures 22 and obtaining Mark, that is, can measure and spectral shift can be quantified.
According to an embodiment of the invention, machine can detect security feature included in safe object (such as document, currency or Such as the secondary package of the article of tobacco product, luxury goods or drug) in.The security feature can (for example) be embedded in safety It is embedded in line, coin base or as a part for ink, so as to use extreme ultraviolet source or lamp or other appropriate excitaton source viewings The visible change through excitation mark of Shi Yinqi lines.However, the application of specific gas environment can cause the color of security feature to change Become and can measure and both spectral shifts can be quantified, as demonstrated in Figure 4.It can not although being for naked eyes in some cases It detects, but emits specific and different colours and only under optics of the security feature in specific gas environment and gaseous state excitation One spectral fingerprint.The selection of different phosphors leads to different colours and spectral emissions.It can be without to through excitation-emission mark Public cognitive any change in the case of implement being incorporated to for machine readable privacy character, make the forgery or duplication of document whereby It is more difficult.
In another embodiment, the feature can be changed by using coated safety feature outside airtight ink, in Fig. 5 It is shown.First using security feature 40 of the gas-discoloration ink as described above printing with radioactive property.Then With transparent oxygen impermeable ink chromatography feature 40 to form pattern.Due to the property of gas-discoloration ink, when ring characteristics (that is, when being introduced into or except deoxidation) generates excitation comparison through chromatography layer 42 in underlying features when gaseous environment changes.Other figures Caseization can also be realized to be formed changing in molecular oxygen by the spectrally identical emitter become comprising non-gas coloring At once the solid-state image of coded information is demonstrated after change.
Using this system, the existing radiological safety feature used as open feature can be changed with comprising secret special Sign.Gas coloring can be become in material thin-layer overlay to existing security feature.Further, it is possible to use transparent airtight ink will In simple bar code overlay to combined system.The emission spectrum of modified security feature in Fig. 6 contains existing security feature Transmitting and thin ink overlay layer in gas coloring become compound.Transmitting data, which also show that, is being exposed to O2And feature during Ar Response.When the specific emission that gas coloring becomes transmitting shows anticipatory behavior, the transmitting of existing security feature be it is extremely stable and It is insensitive to the change of atmospheric environment.
As described above, security feature can be coated with the scumbling that gas causes color changing material and then uses airtight body oxygen ink Layer covers and chromatography is to form bar code pattern.Exemplary pattern is shown in the figure 7.The area for frame wherein occur is gas coloring Sensitive ink is without outer coating and activity is therefore kept to demonstrate the place of bar code after filtering and image procossing.The bar shaped Code is there are Ar and/or N2Show at once in the case of air-flow, as demonstrated in Figure 8.
Security feature be suitable also for high speed machines inspection, in the case that wherein Fig. 9 is illustrated in there is no gas and with The signal that 10m/sec conveying speeds obtain.Although Figure 10 is depicted in the N of low-down gas flow2The UV for being incident in bank note shines Response when penetrating on side.But this notable result displaying whole world is to fully hiding and being lived with what high conveying speed measured through gas Change the first of bank note security feature and unique proof.
In another embodiment, security feature can be embedded content as described above.The embedded content It is preferably formed at least one dimension significantly thin it to be allowed to be incorporated into the substrate material of such as bank note or security document In.Describe this arrangement at Figure 11, wherein substrate, which has, is incorporated into numerous safe contents therein.Such as the first of Figure 11 In rectangle frame in this visible arrangement, safe content emits the first transmitting in response to excitation stimulant.Therefore, the first spectrum Mark 16 is the result for the optical excitation for including fibres;Being applied in specific wavelength for optical excitation generates more high emission.Such as Seen in the second rectangle frame of Figure 11, the second spectral signatures 18 by simultaneously by optics and gaseous state exposure excitation security feature and It generates.Since oxygen is the quencher about gas-discoloration material, after the removing or displacement of ambient oxygen, specific gas is included The spectral signatures of the excitation of environment generate significantly higher radioactivity response at once.
It is further noted that embedded security feature can be used for determining the average pore of substrate material, bank note or security document Degree.The aperture that substrate is readily penetrated through due to gas is influenced response time and the gas of embedded security feature by the porosity of material Coloring, which becomes, to be changed.Based on the speed and intensity of the change for monitoring embedded feature, the fraction porosity of substrate can through determine with into One step is used as examining the means of the authenticity of substrate.
In the presence of can at once show after specific gas environment is exposed to, the increaseing or decreasing of electromagnetic radiation, intensity changes Various types of other compound of change, fluorescence or other detectable changes.For example and do not have limitation ground, in one embodiment In, the compound of following classification can be in oxygen environment or other gaseous environments through gas activation:Platinum (II) or palladium (II) porphyrin;Platinum (II) or palladium (II) phthalocyanine or sodium phthalocyanine;Ruthenium (II) three-bipyridyl type complex;Terbium (III) class compound;And dinaphthyl is embedding Benzene.For example and do not have limitation ground, in another embodiment, the compound of following classification can be in carbon dioxide environment or other Through gas activation in gaseous environment:Hydroxyl pyrene trisulfonic acid (" HPTS ") in wet polymer or collosol and gel medium.For example And do not have limitation ground, in another embodiment, the compound of following classification can be in water environment or other types of environment through gas Body activates:Ruthenium (II) three-bipyridyl type complex;Perylene dyes;And the dyestuff of Lai Kate.In one embodiment, Water sensitive absorber can be used for selectively stopping absorbing from the fluorescent dye or other types of dyestuff not influenced by water Or transmitting.
It is special that although the embodiment of the present invention description disclosed herein detects radioactivity under the excitation of light and gas source Sign, but those skilled in the art the advantages of should be understood that the absorbent properties using gas sensitive, is as security feature.It lifts For example, according to another embodiment of the present invention, security feature, which may include in certain wave strong point having under optical excitation, to be absorbed The phosphor material of property spectral response.Gaseous state is excited to the recovery for being applied to the radioactive intensity that material causes material.
Although the embodiment of the present invention description disclosed herein is detected based on the specific response to excitaton source, Those skilled in the art should be understood that can be incorporated to additional parameter in the case of without departing substantially from the scope of the present invention, such as send out Response time and the change of time decay, the spectral signatures of host and the transmitting under gaseous state excitation penetrated.
Aspect, embodiment, feature and the example of the present invention should be considered as illustrative in all respects and be not intended to limit The present invention, the scope of the present invention are only defined by tbe claims.Those skilled in the art is without departing substantially from institute's claimed invention It will become apparent from other embodiments, modification and usage in the case of spirit and scope.
The use of title and chapters and sections in present application is not intended to limit the present invention;Each chapters and sections are applicable to the present invention's Either side, embodiment or feature.
Through present application, in the case where composition is described as having, contains or comprises specific components or in process In the case of being described as having, containing or comprising particular procedure step, it is contemplated that the composition of teachings of this disclosure also substantially by Institute's Statement component composition is made of, and the process of teachings of this disclosure is also substantially by stated process steps group institute's Statement component It forms into or by stated process steps.
In application case, it is said that element or component be contained in institute's stated element or the component list and/or selected from institute it is old In the case of stating element or the component list, it should be appreciated that element or component can be institute's any one of stated element or component and can Selected from by the two in institute's stated element or component or the group formed more than the two.Further, it should be appreciated that can without departing substantially from Composition described herein, equipment or method are combined in the case of the spirit and scope of teachings of this disclosure in various ways Element and/or feature, express or imply herein.
The use of term " including (include, includes, including) ", " having (have, has, having) " Should be generally understood as it is open and unrestricted, unless otherwise specifically recited.
The use of odd number herein includes plural (and vice versa), unless otherwise specifically recited.In addition, singulative " one (a, an) " and " (the) " includes plural form, unless the context clearly dictates otherwise.In addition, be quantitative values it In the case of preceding use term " about ", teachings of this disclosure also includes specific quantitative value itself, unless otherwise specifically recited.Such as this Used in text, term " about " refers to ± 10% variation from nominal value.
As long as should be understood that teachings of this disclosure keeps operable, the order of each step or the order of execution specific action are not It is important.In addition, two or more steps or action can be carried out at the same time.
In the case of offer value range or list, each intervention between the upper limit and lower limit of described value range or list Value is specifically recited in wherein through being individually expected and being included within the present invention like each value.In addition, the upper limit of given range with Through being expected and being included within the present invention between lower limit and comprising the upper limit and the smaller range of lower limit.Exemplary value or range It lists not between the upper limit of given range and lower limit and other value or ranges comprising the upper limit and lower limit is denied.
Although description is of the invention with reference to an illustrative embodiment, those skilled in the art will appreciate that, it can not carry on the back Various other changes, omission and/or addition are made in the case of from spirit and scope of the present invention and substantially equivalent can use For its element.In addition, many modifications can be made in the case of without departing substantially from the scope of the present invention so that specific condition or material are fitted It should be in teachings of the present invention.Therefore, the present invention is not intended to be limited to for the disclosed specific embodiment of implementation, but The present invention will include all embodiments within the scope of the appended claims.In addition, except non-specific statement, otherwise term Any use of " first, second etc. " does not indicate that any order or importance, but term " first, second etc. " is for differentiation one A element and another element.

Claims (14)

1. a kind of safe object, including:
Substrate;And
At least one security feature is embedded in the substrate, and the security feature is in the change for being exposed to gaseous environment With emitting at different wavelengths,
Wherein described security feature emits the first spectral emissions in the excitation energy in being exposed to first gas environment, and described One transmitting changes into the second spectral emissions at once after the change of the first gas environment is exposed to.
2. safe object according to claim 1, wherein substrate material include bank note or security document.
3. safe object according to claim 1, wherein the substrate material includes paper.
4. safe object according to claim 1, wherein the security feature is selected from the group being made of the following terms:It is thin Flat paper slip, Boping plastic strip and coin base.
5. safe object according to claim 4, wherein security feature are coated with one or more gas-discoloration materials.
6. safe object according to claim 1, wherein the security feature is by being selected from the group being made of the following terms The particle that the material of group is formed:Silica, zeolite and low-density polystyrene.
7. safe object according to claim 1, wherein the security feature is polymer fiber.
8. safe object according to claim 7, wherein polymer fiber are extruded, dye or have nervously dyed one or more Kind gas-discoloration material.
9. safe object according to claim 1, wherein included through gas activation security feature be selected from by fluorescent material and The material of the group of phosphor material composition.
10. safe object according to claim 1, wherein described included through gas activation security feature is selected from by following The material of the group of item composition:Platinum (II) or palladium (II) porphyrin, platinum (II) or palladium (II) phthalocyanine or sodium phthalocyanine, ruthenium (II) three-connection Pyridine type complex, terbium (III) class compound, perylene dyes, hydroxyl pyrene trisulfonic acid, Lai Kate dyestuff and its group It closes.
11. a kind of method for verifying safe object, includes the following steps:
It directs electromagnetic radiation at containing the embedded safe object through gas activation security feature in first gas environment The first spectral emissions are formed, the security feature is in the change for being exposed to gaseous environment with emitting at different wavelengths;
Originate the change of the gaseous environment of the security feature;And
Detect the security feature as caused by the change of gaseous environment from first spectral emissions to the second spectrum The change rate and/or intensity of transmitting change;
Based on the porosity for detecting and changing rate and/or intensity change and determining the safe object.
12. according to the method for claim 11, wherein the step of the change of the gaseous environment of the starting security feature It is rapid include from the first gas environment of the security feature remove gas or inject a gas into the first gas environment with Form the second gas environment of the security feature.
It is carried out 13. according to the method for claim 11, further comprising emitting difference spectrum with expected spectral emissions The step of comparing the authenticity to determine the safe object.
14. according to the method for claim 11, the step of further comprising measuring the time response of the spectral emissions.
CN201580083239.2A 2015-08-24 2015-08-24 The gas-discoloration fiber and content of safe object Pending CN108140103A (en)

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