WO2012131704A2 - Film d'emballage anti-contrefaçon - Google Patents

Film d'emballage anti-contrefaçon Download PDF

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Publication number
WO2012131704A2
WO2012131704A2 PCT/IN2012/000180 IN2012000180W WO2012131704A2 WO 2012131704 A2 WO2012131704 A2 WO 2012131704A2 IN 2012000180 W IN2012000180 W IN 2012000180W WO 2012131704 A2 WO2012131704 A2 WO 2012131704A2
Authority
WO
WIPO (PCT)
Prior art keywords
foil
solution
counterfeit packaging
minutes
counterfeit
Prior art date
Application number
PCT/IN2012/000180
Other languages
English (en)
Other versions
WO2012131704A3 (fr
Inventor
Ruchir Yagneshkumar SHAH
Ram Bharatkumar TALATI
Saumil Anilkumar PARIKH
Original Assignee
Shah Ruchir Yagneshkumar
Talati Ram Bharatkumar
Parikh Saumil Anilkumar
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shah Ruchir Yagneshkumar, Talati Ram Bharatkumar, Parikh Saumil Anilkumar filed Critical Shah Ruchir Yagneshkumar
Publication of WO2012131704A2 publication Critical patent/WO2012131704A2/fr
Publication of WO2012131704A3 publication Critical patent/WO2012131704A3/fr

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25F—PROCESSES FOR THE ELECTROLYTIC REMOVAL OF MATERIALS FROM OBJECTS; APPARATUS THEREFOR
    • C25F3/00—Electrolytic etching or polishing
    • C25F3/02—Etching
    • C25F3/04—Etching of light metals
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D11/00—Electrolytic coating by surface reaction, i.e. forming conversion layers
    • C25D11/02—Anodisation
    • C25D11/04—Anodisation of aluminium or alloys based thereon
    • C25D11/18—After-treatment, e.g. pore-sealing
    • C25D11/24—Chemical after-treatment
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D11/00—Electrolytic coating by surface reaction, i.e. forming conversion layers
    • C25D11/02—Anodisation
    • C25D11/04—Anodisation of aluminium or alloys based thereon
    • C25D11/18—After-treatment, e.g. pore-sealing
    • C25D11/24—Chemical after-treatment
    • C25D11/246—Chemical after-treatment for sealing layers

Definitions

  • the present invention relates to an anticounterfeit packaging foil used for detection of genuineness of the products. More particularly, the present invention relates to the anticounterfeit packaging foil used to prevent the sale of counterfeit pharmaceutical products and alike.
  • Packaging is the coordinated system which encloses and protects the products for distribution, storage, preservation, transportation, information and sales. Products when sidetracked from their proper distribution channel or sold past their expiry date or by modification of the package are associated with the problem of counterfeiting.
  • the pharmaceutical brands are the most vulnerable due to their higher market share, ease of production and greater profit margins. Individuals often buy counterfeit drugs from the internet or unlicensed pharmacies. Counterfeit drugs are the major cause of morbidity, mortality and loss of confidence in the healthcare system.
  • Authentication is of utmost importance because the use of counterfeit medicines can be harmful and also fatal to the health and well- being of the civilization. Authentication is generally done through the overt or covert features upon the product. Overt features help users to confirm the genuineness of a pack. Such features are significantly visible, complex and expensive to reproduce. They include the optical variable coatings with changing colors, thermochromic inks and water marks. Barcodes were initially used which were incorporated onto the product package, which were scanned and sent to the central database. After inkjet and digital printing, laser technology was introduced to produce high quality small images and two-dimensional barcodes but the high quality barcodes are also easily replicable. Holography, with its capacity to produce striking three dimensional images is difficult to get through with conventional photography techniques.
  • Holograms are generated from the interference patterns obtained through the contact of laser beams by either angular image or laser technology.
  • the complexity of the hologram varies from the traditional three-dimensional images to computer-generated two-dimensional diffraction patterns. Despite the presence of the holograms, the sales can be forged by hi-tech replication techniques.
  • RFID Radio Frequency Identification Device
  • HoloSealTM which is a pressure-sensitive, tamper apparent holographic security label that features a customized tamper apparent fracture pattern, black light verification system and machine-readable entrenched code.
  • HoloSeal can be numbered or personalized to give an account of region, plant or product.
  • HoloCapTM comprises several different heat- sealable films which are attached directly to the containers using the induction seal technology. These different films unite to form a single holographic inner seal that provides a higher level of defense to containers or bottles.
  • Holospot® is a discrete forgery-proof information carrier that can be attached to any product. It uses laser encryption of computer-generated lithograms into small polymeric data carriers and offers multiple overt and covert security features.
  • IdentSeal® is a visible text or high-contrast barcode inscribed by lasers. It offers overt protection, identification and a successful tamper evident feature. But the need is for the invisible substrates to enhance the security and the research led to the development of forensic markers.
  • the main object of the invention is to provide an anti-counterfeit packaging foil for non-invasive detection of the authenticity of the goods such as pharmaceutical medicines by providing covert measures for authentication.
  • Another object of the invention is to provide an anti-counterfeit packaging foil which reduces and/ or prevents the counterfeiting of the goods.
  • Yet another object of the invention is to provide an anti-counterfeit packaging foil for detection of authenticity of the product by the covert measures not applied but are inbuilt, in a manner that the reproduction of same foil is difficult or impossible.
  • Further object of the invention is to provide an anti counterfeit packaging foil having shelf life up to 36 months.
  • Further object of the invention is to provide an anti counterfeit packaging foil which is tamperproof and efficient.
  • Further object of the invention is to provide an anti counterfeit packaging foil which is accurate.
  • Further object of the invention is to provide an anti counterfeit packaging foil that does not require any extra measures during manufacturing and its usage.
  • Further object of the invention is to provide an anti counterfeit packaging foil which can be used in packing of even cheaper goods and detecting its authenticity without increasing the overall cost involved.
  • Further object of the invention is to provide an anti counterfeit packaging foil which can be authenticated by simple traditional to complex sophisticated instruments for detecting its authenticity.
  • Further object of the invention is to provide an anti counterfeit packaging foil which does not interact with the product but still serves its purpose of anti counterfeiting.
  • Further object of the invention is to provide an anti counterfeit packaging foil which can be detected for its authenticity in significantly reduced time.
  • Further object of the invention is to provide an anti counterfeit packaging foil which can be detected for its authenticity by not only one but several techniques.
  • the summary of the invention is the development of an anticounterfeit packaging foil to prevent the sale of counterfeit products and to provide non-invasive detection of the authenticity of the goods by providing covert measures, in a manner that the reproduction of same foil is difficult or impossible.
  • the said anticounterfeit foil is prepared by forming cathode and anode from an aluminum foil followed by subjecting the anode to etching to allow the layer of aluminum oxide to get removed and to expose the foil to get anodized whereby the etched aluminum foil is anodized in acidic bath of sulphuric acid to form a thin porous layer of aluminum oxide having nanopores over the foil, which is then immersed in solution A which is further subjected to sealing in order to seal the nanopores and to remove the adhered layer of solution A over the foil, allowing only the said solution to enter the pores and to form a thin coat over the foil.
  • the authentication of goods can be ensured upon detection of presence of fluorescence and selenium in the proposed anticounterfeit foil.
  • the proposed anti counterfeit packaging foil is nonconductive due to the presence of aluminum oxide, the foil can be gold coated and sputtered to reveal the presence of nanopores by recording electron micrographs of the porous aluminum foil at 50,000 x magnifications using SE detector with Scanning Electron Microscope (SEM).
  • the proposed invention mainly comprises of the following:
  • the present invention relates to an anti-counterfeit packaging foil used to prevent the sale of counterfeit pharmaceutical products and alike.
  • Cathode and anode are prepared using 98-100% pure aluminum foil, having 20 to 400 microns thickness.
  • the said anode and cathode are then cleaned with distilled water and acetone respectively to remove the dirt and the debris.
  • the cathode and anode, prepared in the first step are allowed to air dry for about 2 minutes and the said cathode and anode are immersed in a chamber containing 0.5 to 1M sodium hydroxide solution for 1-3 minutes to subject the said anode to etching, to allow the layer of aluminum oxide to get removed, preparing the said anode for the anodizing step.
  • a chamber containing 0.5 to 1M sodium hydroxide solution for 1-3 minutes to subject the said anode to etching, to allow the layer of aluminum oxide to get removed, preparing the said anode for the anodizing step.
  • hydrogen gas evolves from the chamber and the etched foil is then removed from the chamber and washed thoroughly with the distilled water.
  • the rate of etching is proportional to concentration of sodium hydroxide solution. This step is critical for the final appearance of the foil.
  • the anodized foil is immersed in solution A for 20 to 45 minutes, which is then removed and washed with distilled water.
  • the said solution A is prepared by adding 4 to 8 gm gelatin to 100ml water and allowing it to hydrate for 2 to 10 minutes which is then warmed at 30-50°C temperature to dissolve the gelatin in water. 2 to 4 ml solution of 3-6 g/ml selenium dioxide is then added to the above solution followed by addition of 100ml Acetone to form a turbid milky emulsion. While performing the above steps, the temperature is maintained at 30-50°C. To the above prepared solution, 0.5-1 ml solution of dye (Eosin in Acetone) is added. The said solution is then stirred at 600 rpm for 30-45 minutes to prepare the solution A. The pH of the said solution A is maintained in range of 4 to 7.
  • the foil prepared in step IV is subjected to sealing for 25 to 40 minutes, whereby the pores in the foil are sealed, primarily by the steam coming out from the boiling water bath of temperature 100- 102° C and secondarily by immersing the said foil in boiling water as preventive measure to seal the remaining unsealed pores during primary sealing and to remove the excess adhered layer of solution A over the foil, allowing the solution A to enter the pores and to form a thin coat over the foil.
  • the foil thus produced can be further coated with polymers to make it comparable with the foils available in the market and to be used as an anti-counterfeit packaging foil. Further, the shelf life of the proposed anti-counterfeit packaging foil is up to 36 months.
  • coating thickness over the foil is directly proportional to time for which the anodized foil is subjected to solution A.
  • the thickness of coating over the foil ranges within 10-20 microns.
  • the proposed anti counterfeit packaging foil is nonconductive due to the presence of aluminum oxide.
  • the film can be gold coated and sputtered to record electron micrographs of the porous aluminum foil at 50,000 x magnifications using SE detector with Scanning Electron Microscope (SEM) LEO 440i instrument, which reveals the presence of nanopores in the foil.
  • SEM Scanning Electron Microscope
  • reaction - anodizing and coating occurs only at the matte surface and not on the shiny/ glossy surface which helps to keep the inner contact of the product to the proposed foil untouched and helping the outer coat to authentication.
  • the proposed anti-counterfeit packaging foil can be tested at user's end to ensure the authenticity of the product as below:
  • the normal aluminum foil is conductive of electricity but an anti counterfeit packaging foil of the present invention is nonconductive because of the formation of porous aluminum oxide film over the foil which can be tested by establishing the circuit in chamber and by passing the current.
  • the presence of selenium in the anti counterfeit packaging foil enhances the stability in terms of resistance towards moisture.
  • the normal and treated aluminum foils have to be placed in the ultra violet chamber. Under white light both the foils appear to be identical but under ultra violet light, the treated foil is found to be fluorescent. This distinction allows distinguishing between the genuine and counterfeit product.
  • the presence of selenium modifies the wavelength of the emitted light and therefore changes the colour of fluorescence (emitted light), whereby the fluorescence is due to gelatin".
  • the present anti counterfeit packaging foil can be tested by the standards set by the American Society for Testing Materials [ASTM B 136], where the present foil is immersed in the fluorescent dye solution and the uptake of dye by the said foil can be checked.
  • the anti counterfeit packaging foil remains defiant to the dye and passes the test.
  • the proposed anti-counterfeit packaging foil can be used in packaging of pharmaceutical product.
  • the present anti counterfeit packaging foil retains its features while performing sealing of said foil in packaging of pharmaceutical product even at higher temperature of 170°C.
  • the present anti counterfeit packaging foil allows, printing on over all surface, whereby the underlying layer of aluminium oxide does not interfere with the printing process as required for its suitability in the market contrary to other conventional techniques like RFID and holograms or barcodes which do not allow printing on them.
  • An aluminum foil having thickness 20 microns is taken.
  • the said foil is then cleaned with acetone, etched by using 1M sodium hydroxide (NaOH) solution for 2 minutes to give matte finish.
  • the etched foil is subjected to anodizing where 10V DC current with 500 mA current flow is passed through the acidic bath of sulphuric acid for 25 minutes.
  • sulphuric acid begins to decompose and the hydrogen ions move towards cathode where they are reduced to hydrogen gas.
  • negatively charged hydroxide, sulphate and oxide anions move towards anode.
  • the electrical charge in the circuit causes positively charged aluminum ions to generate at the anode which react with the oxide or hydroxide ions to form a thin porous layer of aluminum oxide having nanopores within a time span of 25 minutes.
  • the foil is immersed in solution A for time duration of 25 minutes.
  • the said foil is then subjected to sealing step, where the pores are sealed for 30 minutes with the help of steam coming out from the boiling water bath of temperature 100- 102° C.
  • the processed foil is then authenticated by the means of UV lamp, EDXRF and Conductivity test and it was found to be fluorescent, non-conductive and with selenium present in it 0.224%.
  • An aluminum foil having 300 microns is taken.
  • the said foil is then cleaned with acetone, etched by using 1M sodium hydroxide (NaOH) solution for 3 minutes to give matte finish.
  • the etched foil is subjected to anodizing where 10V DC current with 500 mA current flow is passed through the acidic bath of sulphuric acid for 25 minutes.
  • sulphuric acid begins to decompose and the hydrogen ions move towards cathode where they are reduced to hydrogen gas.
  • negatively charged hydroxide, sulphate and oxide anions move towards anode.
  • the electrical charge in the circuit causes positively charged aluminum ions to generate at the anode which react with the oxide or hydroxide ions to form a thin porous layer of aluminum oxide having nanopores within a time span of 25 minutes.
  • the foil is immersed in solution A for time duration of 35 minutes.
  • the said foil is then subjected to sealing step, where the pores are sealed for 35 minutes with the help of steam coming out from the boiling water bath of temperature 100-102° C.
  • the processed foil is then authenticated by the means of UV lamp, EDXRF and Conductivity test and it was found to be fluorescent, non-conductive and with selenium present in it 0.225%.
  • An aluminum foil having 400 microns is taken.
  • the said foil is then cleaned with acetone, etched by using 1M sodium hydroxide (NaOH) solution for 1 minute to give matte finish.
  • the etched foil is subjected to anodizing where 10V DC current with 500 mA current flow is passed through the acidic bath of sulphuric acid for 25 minutes.
  • sulphuric acid begins to decompose and the hydrogen ions move towards cathode where they are reduced to hydrogen gas.
  • negatively charged hydroxide, sulphate and oxide anions move towards anode.
  • the electrical charge in the circuit causes positively charged aluminum ions to generate at the anode which react with the oxide or hydroxide ions to form a thin porous layer of aluminum oxide having nanopores within a time span of 25 minutes.
  • the foil is immersed in solution A for time duration of 25 minutes.
  • the said foil is then subjected to sealing step, where the pores are sealed for 40 minutes with the help of steam coming out from the boiling water bath of temperature 100- 102° C.
  • the processed foil is then authenticated by the means of UV lamp, EDXRF and Conductivity- test and it was found to be fluorescent, non-conductive and with 5 selenium present in it 0.256%.
  • An aluminum foil having 350 microns is taken.
  • the said foil is then cleaned with acetone, etched by using 1M sodium hydroxide (NaOH) solution for 3 minutes to give matte finish.
  • the etched foil is subjected to anodizing where 10V DC current with 500 raA current flow is passed through the acidic bath of sulphuric acid for 25 minutes.
  • sulphuric acid begins to decompose and the hydrogen ions move towards cathode where they are reduced to hydrogen gas.
  • negatively charged hydroxide, sulphate and oxide anions move towards anode.
  • the electrical charge in the circuit causes positively charged aluminum ions to generate at the anode which react with the oxide or hydroxide ions to form a thin porous layer of aluminum oxide having nanopores within a time span of 25 minutes.
  • the foil is immersed in solution A for time duration of 20 minutes.
  • the said foil is then subjected to sealing step, where the pores are sealed for 25 minutes with the help of steam coming out from the boiling water bath of temperature 100- 102° C.
  • the processed foil is then authenticated by the means of UV lamp, EDXRF and Conductivity test and it was found to be fluorescent, non-conductive and with selenium present in it 0.220%.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Laminated Bodies (AREA)

Abstract

La présente invention concerne un film d'emballage anti-contrefaçon conçu pour éviter la vente de produits de contrefaçon et pour assurer une détection non invasive de l'authenticité des marchandises en proposant des mesures discrètes qui ne sont pas appliquées, mais intégrées, afin que la reproduction du même film soit difficile, voire impossible. Le film ci-décrit est préparé en formant une cathode et une anode à partir du film en aluminium, puis en soumettant l'anode à une attaque chimique et en l'exposant afin qu'elle soit anodisée dans un bain acide d'acide sulfurique pour former une fine couche poreuse d'oxyde d'aluminium avec des nanopores par-dessus le film, qui est ensuite immergée dans une solution A, puis soumise à une étanchéification pour sceller les nanopores et former un revêtement fin par-dessus le film. L'authentification des marchandises peut être assurée par détection de la présence de fluorescence et de sélénium dans le film anti-contrefaçon ci-décrit.
PCT/IN2012/000180 2011-03-28 2012-03-15 Film d'emballage anti-contrefaçon WO2012131704A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IN935MU2011 2011-03-28
IN935/MUM/2011 2011-03-28

Publications (2)

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WO2012131704A2 true WO2012131704A2 (fr) 2012-10-04
WO2012131704A3 WO2012131704A3 (fr) 2012-12-27

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10338007B2 (en) 2017-02-23 2019-07-02 International Business Machines Corporation System and method for detecting package tampering
US10395078B1 (en) 2017-02-23 2019-08-27 International Business Machines Corporation Digital fingerprint generation using sensor embedded packaging elements
US11235498B2 (en) * 2017-08-25 2022-02-01 Plastal Co., Ltd. Manufacturing method of metal-polymer resin bonded component

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101780733A (zh) * 2010-02-03 2010-07-21 深圳劲嘉彩印集团股份有限公司 镭射定位电化铝及其制造方法
CN201647264U (zh) * 2010-04-28 2010-11-24 西安环球印务股份有限公司 防伪药品包装盒

Non-Patent Citations (1)

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

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10338007B2 (en) 2017-02-23 2019-07-02 International Business Machines Corporation System and method for detecting package tampering
US10395078B1 (en) 2017-02-23 2019-08-27 International Business Machines Corporation Digital fingerprint generation using sensor embedded packaging elements
US11235498B2 (en) * 2017-08-25 2022-02-01 Plastal Co., Ltd. Manufacturing method of metal-polymer resin bonded component

Also Published As

Publication number Publication date
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