"A Process For Preparing Anti Counterfeit Aluminium Foil"

Field of the Invention This invention relates to a process for preparing anti-counterfeit aluminium foil and in particular, this invention relates to a process for preparing anti-counterfeit aluminium foil and its use for producing packaging material, decorative foils and advertizing media. More particularly, this present invention relates to the anti-counterfeit aluminium foil. The invention relates furthermore to the use of the counterfeit-proof aluminium foil as claimed in the invention for producing packaging material, for example for medications. Furthermore, this invention also relates to the process of preparing counterfeit-proof aluminium foil which is made by using a specialized optical image transfer technology which creates an encrypted image on the aluminium foil. Background of the invention and the related Prior Art The demand for counterfeit-proof packaging material, for example for medications, has grown in recent years to the extent the amount of counterfeit medications has risen relatively greatly worldwide. These counterfeits can be pharmaceutically active drugs, but also agents with a placebo effect. Therefore the attempt is made, to provide packaging materials for the

pharmaceutical industry with holograms. It has been found that even holograms, although their production is relatively complicated, can be counterfeited with increasing technical development. These counterfeits can only be characterized or recognized as such by a specialist since it is difficult for the user of a medication to ascertain whether the hologram is counterfeit or not if he does not have the corresponding comparison specimen. Regardless of this, the attempt is made to produce counterfeit-proof packaging material in so far as the material surface is provided with a special coating which has pigments which can be activated by radiation. Thus, for example, the company logo of the manufacturer or the trademark of the medication can be made visible or invisible by radiation, such as UV or IR rays. EP1217091 relates to packaging with an integrated initial opening and/or originality guarantee which is produced by a coating which reflects incident light so that depending on the direction or angle of viewing different colors are discerned. EP0967091 describes a coating of several grid images which are matched to one another and which, depending on the viewing angle, produce a different

optical perception. But it has been found that these coating systems can also be added so that satisfactory counterfeit-proofness, especially with respect to packaging materials for the pharmaceutical industry, could not be achieved in this way. Packaging industry utilizes aluminium foil individually or as a substrate in multilayer laminates basically for its excellent barrier properties. Varied items can be packed and the structure selected depending upon the stability and shelf life requirement of the item to be packed. A lot of research work happened in last few years to provide anti-counterfeit aluminium foil need to be fulfilled for essentially healthcare products which is clearly understood as priority area. The patent document CN202021880 states an anti-counterfeiting drug packaging aluminium foil sticked with fibers. A plurality of fibers is randomly mixed between a protective layer and an aluminium foil substrate layer. A fiber layer which is dispersed uniformly is formed by the fibers. An outer printing layer comprises an identification number layer. Random distribution characteristic information of the fibers is scanned and acquired, is stored in a database of a computer anti-counterfeiting inquiring system accessing a telephone network or/and the Internet and is used for the public to check truth

and falsity. After a patient takes the drug, the drug packaging aluminium foil is necessarily damaged, so that the drug packaging aluminium foil can be avoided being recycled by fake makers. The other document CN201103077 discloses a composite aluminium-foil paper combined aluminium and paper and used for cigarette packaging. The composite aluminium-foil paper comprises a layer of lining paper and a layer of aluminium foil, which are compounded as a whole; the upper local part of the aluminium foil is overlapped with a laser layer. The three-dimensional laser hologram aluminium-foil anti-counterfeiting paper provided by the utility model not only has the advantages and characteristics of freshness preservation and moisture resistance, but also has the functions of anti-counterfeiting with stereoscopic impression; in addition, the design proposal of the structure that a required part is partially or wholly overlapped with a three-dimensional laser hologram layer results in effective control of production cost, resources conservation and enhance anti-counterfeiting of products. According to the document CN101069999, a laser anti-counterfeiting aluminium foil and its preparation method has been described. The anti-counterfeiting aluminium foil contains a delomorphic aluminium plating layer, an adhesive layer and a metal aluminium foil layer overlapping successively.

The preparation method mainly contains washing, gluing, heating, pressing, covering membrane, water or wind cooling and removing membrane etc. of the aluminium foil. The invention transfers the laser anti-counterfeiting membrane onto the aluminium foil by using new-type BOPP. The BOPP substrate membrane has good temperature and age resistance, soft materials, without coating transparent shape-separating layer and simple technology. Transferring the anti-counterfeiting membrane onto the aluminium foil can avoid the laser patterns disappearing or destroying. The whole membrane has good temperature resistance and is uneasy to craze. The invention of the document 2714/MUM/2009 provides a packaging material comprising a plurality of layers, said material having discernible indicia for authentication characterized by the presence of at least one predetermined anti-counterfeit feature, at least one predetermined location in at least one predetermined visible layer. Also, provided in accordance with the present invention is a process for manufacturing said packaging material. The document CN2718037 describes a safety line anti-fake aluminium foil paper, comprising a layer of lining paper and a layer of aluminium foil. The lining paper and the aluminium foil are compounded together, and part of the

lining paper is compounded with safety lines. The safety line anti-fake aluminium foil paper not only keeps the features and characters of the original aluminium foil liner papers, but also has anti-fake function with more beautiful appearance, which is easy to be identified. According to the invention CN2492493 electromagnetic induction composite aluminium foil mat used for sealing the open of the bottles consists of a layer of basic material and a layer of aluminium foil that are laminated with each other through a layer of adhesion agent, which is crucial to coat a layer of sealing film on the upper surface of the layer of the aluminium foil and to coat an adhesion layer on the lower surface of the aluminium foil. Since the upper surface of the layer of the aluminium foil is coated with a layer of sealing film, the micro holes on the surface of the aluminium foil are blocked; therefore, the mat has the superior advantages of anti-moisture, non-permeability, cleanliness, beauty, theft resistance and fake resistance. A production method is provided by which a copied volume hologram from a multi-layer master is later customized by utilization of the color tuning properties of the light-curable materials used for the application onto personal documents. These holographic individual data, such as a passport photo, are also separately detectable, without the holographic elements copied from the

master, that are visible under other viewing angles, impairing the visibility of the individual data. The volume hologram overlay obtained by this method is applied on personal and valuable documents to increase protection against forgery, possesses superimposed optically variable items of information that are separately visible under different viewing angles and give a defined color change under different view angles, wherein at least one of these items of optical information represents individual personal data, in particular a passport photograph which has been stated in document of patent application US8263292. The document US8081359 states that the security object comprises a substrate, a surface structure and a hologram layer. A volume hologram is arranged in the hologram layer. The hologram layer is deformed in homogeneously by the surface structure, which gives rise to readily detectable changes in the reflections from the volume hologram. These changes can be used to verify the authenticity of the object. The surface structure can e.g. be applied using intaglio printing techniques or embossing. Alternatively or in addition to the deformation of the hologram layer by means of the surface structure, the hologram layer may also be deformed by embossing.

The invention stated in US7806343 discloses the invention which concerns the prevention of counterfeiting labels for various products is addressed by introducing counterfeit proof labels having optically concealed security safety features and clues for consumer's self identification and verification. The images of groups of questions and answers are printed in a precise serial formation, parallel to the optical center of the micro lenticule at the focal plane of a high resolution micro optic array of the label at the location in relation to the optical centers of the micro lenticule and viewing angle, so that each of the questions and answers can be read at a specific viewing angle. For identification, gently tilling the label back and forth, at different angles, each group of the question and answers will be displayed on the label. If the answers correctly match with the questions, the label is proved to be authentic; if one or more of the answers is wrong or not clear the label is a counterfeit. The label can be read under visible light source without any viewing aid. The other document US6490403 describes a process for manufacturing a panel light-guiding element, including the step of rolling a metal body of one of aluminium and an aluminium alloy in at least one pass between at least two rolls to form a rolled product having at least one structured surface as a light guiding structure having a rib pattern of height h and a tooth-like cross-section.

The tooth-like cross-section have a periodic structure of rows of triangles. The triangles have bases which follow each other, a first side of each of the triangles running at an angle .alpha., and a second side at an angle .beta, from the base which has a length 1. At least one of the rolls exhibits an embossed pattern that is structured to form the rib pattern in a rolling direction over a full length of the rolled product and is tooth-like in cross-section so that the angle .alpha, is in a range of 5 to 60.degree., the angle .beta, in a range of 10 to 90.degree., the length 1 in a range of 0.01 to 10 mm and the height h is 0.1 to 2 mm. The other document JP2009116857 provide a low-cost and high-productivity anti counterfeit measures difficult to fabricate by die picking that is difficult to determine under a normal visible-light source, capable of obtaining verification light of a variety of color variations, relative to light source types or the verification light of vivid color changes in a particular verification method, and further, producing a high anti counterfeit effects, using a proper pattern. An anti counterfeit structure includes a particulate fixing layer, having spherical-shaped particulates and a particulate fixation resin for retaining and fixing the above spherical-shaped particulates. The particulate fixation resin includes one resin type or more and is disposed so as not to bury the half height of or greater than

the spherical-shaped particulates. The spherical-shaped particulates are disposed in a single planar shape over the entire plane, or in an arbitrary shape, with an area filling rate of 30% or higher and have a mean particle diameter of 2.5 [mu]m or smaller, with 70% or higher of particles in number, included within a range which is not smaller than 0.8-fold and not larger than 1.2-fold of the mean particle diameter. With the increasing skill of counterfeiters, a further improvement of such security objects is desired. Also, it is desired that the security objects have characteristics that makes them easy to be verified. The object of this invention is to avoid these known defects of allegedly counterfeit-proof aluminium foils. Due to its excellent barrier properties it is used extensively in Pharmaceutical, Food and Packaging industry and Due to its critical nature of usage the manufacturing process is very critical and there are various process controls that need to be followed to ensure that the output is of the desired quality requirements. It becomes very important to ensure that there is no pilferage in the interest of the end user and health and safety of the consumers. None of these above patents, however alone or in combination, disclose the

present invention. The invention consists of certain novel features and a combination of parts hereinafter fully described, illustrated in the accompanying drawings, and particularly pointed out in the appended claims, it being understood that various changes in the details may be made without departing from the spirit, or sacrificing any of the advantages of the present invention. Summary of the invention This invention relates to a process for preparing anti-counterfeit aluminium foil and in particular, this invention relates to a process for preparing anti-counterfeit aluminium foil and its use for producing packaging material, decorative foils and advertizing media. More particularly, this present invention relates to the anti-counterfeit aluminium foil. The invention relates furthermore to the use of the counterfeit-proof aluminium foil as claimed in the invention for producing packaging material, for example for medications. Furthermore, this invention also relates to the process of preparing counterfeit-proof aluminium foil which is made by using a specialized optical image transfer technology which creates an encrypted image on the aluminium foil during the manufacturing operation. Detailed description of the invention with accompanying drawings

For the purpose of facilitating an understanding of the invention, there is illustrated in the accompanying drawings a preferred embodiment thereof, from an inspection of which, when considered in connection with the following description, the invention, its construction process, and many of its advantages should be readily understood and appreciated. The drawings are in one sheet. The principal object of the invention is to provide a process for preparing anti-counterfeit packaging foil. The other embodiment of the invention is to provide a process for preparing anti-counterfeit packaging foil and its use for producing packaging material, decorative foils and advertizing media. The other embodiment of the invention is to provide the anti-counterfeit packaging foil which is made of aluminium. The other embodiment of the invention is to provide the anti-counterfeit aluminium foil which is use for producing packaging material, for example for medications. Still another object of the present invention is to provide the process of preparing counterfeit-proof aluminium foil which is made by using a

specialized optical image transfer technology which creates an encrypted image on the aluminium foil which is transferred on the aluminium foil during the manufacturing operation. It is a general object of the invention to provide a security object that provides strong anti-counterfeiting protection and/or that is easy to verify. One feature of the invention is the anti-counterfeit aluminium foil is not only makes enterprises suppress adulterated goods and consumers convenient to identify and distinguish false goods, but also protects the legal interest of the enterprises and the consumers and is good for the enterprises to enhance brand image, products image and company image. Understanding that it is very important for the end user to ensure that the product available in the market is of the right source and quality, some uniqueness has to be incorporated in the pack to safeguard its originality and to provide anti-pilferage features. The aim of the present disclosure is to develop and manufacture the Aluminium foil which has a specific characteristic maintaining the technical aspects and to protect end used product from the counterfeiters.

To achieve the above objectives, is an aspect of the present disclosure. The structure of the aluminium foil comprises the aluminium foil layer with a top(outer) surface and a bottom(inner) surface. The outer surface carrying a specific text, image which can be further processed for containing ink or making a laminate structure or any other process. Optionally this layer can also be processed for any printing or coating application. The inner surface of the aluminium foils which is plain and can be processed for further applications like coating or lamination. The process for preparing a anti-counterfeit packaging foil which comprises: rolling with input thicker packaging foil in reel form; involving rolling operation with cold rolling mill using a roller of a specified design and composition suitable, develop a customized roll for creating an encrypted image on the cold rolling equiment; transferred the encrypted image on the packaging foil during the manufacturing operation characterized in that image is an integral part of the packaging foil.

The other anti counterfeit options can then be exercised over and above the above disclosure making it complex and further an obstacle for any intention of duplication. The importance and rewards and unique features of the present disclosure shall be better understood with reference to the following detailed description taken in conjunction with the accompanying drawing, wherein like elements are identified with alphabets . For packaging of solid or liquid material, it is for quality requirement, convenience, marketing or information for reasons that for users, consumers, distributors or sellers of a package is visible to the naked eye without opening the package. The novel features that are considered characteristic of the present invention are set forth with particularity in the appended claims. The invention itself, however, both as to its organization and its method of operation, together with additional objects and advantages thereof, will best be understood from the following description of certain specific embodiments, when read in connection with the accompanying drawings, in which:

FIG. 1 illustrate the aluminium foil structure, in accordance with an exemplary embodiment of the present disclosure; The manufacturing of aluminium foil involves rolling with specific input aluminium sheet in reel form using the rolling technique on a 4 hi rolling mill utilizing the elongation property of the metal. The number of passes are dependent on the final output gauge requirement. This rolling operation involves usage of cold rolling equipment with roller of a specified structure and composition suitable for the mechanical aspects of rolling. With reference to the present disclosure a set of special customized roller is developed and deployed to contain a specific image design or text. This is made possible by using a specialized optical image transfer technology which creates an encrypted image on the roll. The image is further transferred on the aluminium foil during the manufacturing operation. Since this image is an integral part of the aluminium foil and does not use lithographic technology it cannot be removed without physical destruction. This image remain un-

distorted during all the subsequent operations such coating, printing, lamination, packing etc. The aluminium foil so manufactured is value engineered with assured anti-counterfeit features and as well retains the same technical aspects of the respective gauge foil and there is no alteration in its functional, mechanical aspects. Optionally, as per requirement, an additional anti-counterfeit technique can be utilized to augment the current feature or making it more aesthetically pleasing. It also provides product differentiation in primary packaging and enhances brand value of the final finished products. COMMERCIAL APPLICABILITY The aluminium foils as claimed in the invention are used for producing packaging material, their being especially suited as packaging material for healthcare and allied industry. In this use the manufacturer or the consumer can easily ascertain based on the given texturing in the foil surface that he has acquired an uncounterfeited product so that there is counterfeit-proofness based on the metal foil as claimed in the invention.

If texturing takes place on most of the surface of the aluminium foil, this is identical to the appearance of a printed picture so that the aluminium foil as claimed in the invention is likewise used as a decorative foil or an advertizing medium. It is to be understood, of course, that while the forms of the present invention described above constitute the preferred embodiments of the present invention, the preceding description is not intended to illustrate all possible forms thereof. It is also to be understood that the words used are words of limitation, and that various changes may be made without departing from the spirit and scope of the present invention, which should be construed according to the following claims.

I claim: 1) A process for preparing a anti-counterfeit packaging foil which comprises: i) Rolling of aluminium sheet; ii) involving rolling operation with a cold rolling equipment comprising of a roller of a specified design and composition suitable; iii) develop a customised roller for creating an encrypted image on the roll; iv) transferred the encrypted image on the aluminium foil during the manufacturing operation. Characterized in that image is an integral part of the aluminium foil. 2) The process for preparing a anti-counterfeit packaging foil as claimed in claim 1 in which encrypted image on the roller was created by optical image transfer technology. 3) The process for preparing a anti-counterfeit packaging foil as claimed in claim 1 wherein the foil comprises aluminium. 4) A packaging foil for a product, the packaging foil comprising which comprises; a) the top(outer) surface of the packaging foil layer with a specific text or image;

b) An inner surface of the packaging foil layer which is plain. 5) The packaging foil for a product, the packaging foil comprising as claimed in claim 1 wherein the foil comprises aluminium. 6) A packaging foil for a product, the packaging foil as claimed in claim 1 in which outer surface of the foil can be further processed for printing, coating, lamination etc. 7) A packaging foil for a product, the packaging foil as claimed in claim 1 in which the inner surface can be processed for further applications like coating or lamination. 8) A process for preparing a anti-counterfeit packaging foil substantially as hereinbefore described with particular reference to the accompanying drawings. 9) A packaging foil for a product, the packaging foil substantially as hereinbefore described with particular reference to the accompanying drawings.