DESC:FIELD
[0001] The present disclosure relates to blister packs used for storing pharmaceuticals. More particularly, the present disclosure relates to a foil for covering and sealing the blister packs. In particular, the present disclosure relates to a foil in the form of a laminate with anti-counterfeiting feature(s), especially hidden features for covering and sealing the blister packs.

BACKGROUND
[0002] Background description includes information that may be useful in understanding the present invention. It is not an admission that any of the information provided herein is prior art or relevant to the present invention, or that any publication specifically or implicitly referenced is prior art.
[0003] Blister packs area type of formed packets of plastic or aluminium, in which products are displayed and sold. A blister pack typically has one or more cavities or pockets of plastic or similar material or aluminium for holding the products, and sealed by a lidding sheet (laminate) or foil on which the name of the product, type of product, etc., and/or the company producing the product is printed on the outer side thereof. Blister packs are useful for protecting products against external factors, such as humidity and contamination for extended periods of time.
[0004] Blister packs are commonly used for packaging pharmaceutical tablets, capsules, and also non-pharmaceutical products such as special chewing gums such as nicotine gums, and the like. Typically, a strip of multiple cavities is created from rolls of flat sheet or film of thermoformed plastic or cold formed laminate, a pharmaceutical tablet or capsule, or a product like special chewing gum is placed in each cavity and the strip is closed or sealed with a lidding seal of aluminum foil or plastic to form a blister pack. Mainly the foil which is used to seal a blister pack is hard tempered and the cavities formed are semi-rigid making them sufficiently collapsible to enable a consumer to push out the tablets, or capsules, or products like special chewing gum by pressing each cavity on its outer side with the thumb while breaking the foil and expelling the product.
[0005] The foil used for sealing a blister pack is composed of multiple layers of different materials formed over each other to seal the foil. Conventionally, the layers include a lowermost heat seal layer, an aluminium film deposited over the heat seal layer, a layer of lacquer, or a layer of adhesive applied over the aluminium film and a biaxially oriented film deposited over the adhesive. Optionally, another layer of adhesive can be applied on the biaxially oriented film and a layer of paper can be deposited over the biaxially oriented film. Top portion of the foil or a paper can be printed with the name of the pharmaceutical product, type or class of pharmaceutical, composition of the product, name of the company producing the pharmaceutical, manufacturing date, expiry date, price, warning and other details. Such information foremost includes the trade name and logo for easily identifying and differentiating the genuine product manufactured by a specific company.
[0006] However, blister packs are susceptible to tampering and counterfeiting, as such conventional foils can be easily peeled off to replace the original tablets, or capsules in the plastic strip with fake ones, and thereafter a counterfeited foil can be used to seal the plastic strip. At times the counterfeited foils resemble the original foils so closely that it is difficult for a consumer to differentiate between the two.
[0007] There is therefore existing a need for a laminate which makes it more unlikely to be counterfeited, to make a blister pack tamper proof, and which enables a consumer to easily recognize whether a pharmaceutical tablet, or capsule in the blister pack is original or fake.

OBJECTS
[0008] Some of the objects of the present disclosure, but not limited to the same, which at least one embodiment herein satisfies are as listed herein below.
[0009] An object of the present disclosure is to provide an anti-counterfeiting laminate for sealing blister packs so as to make a blister pack tamper proof.
[0010] Another object of the present disclosure is to provide an anti-counterfeiting laminate with overt and/or covert and/or forensic features to make it impossible for a counterfeiter to create a similar foil.
[0011] Another object of the present disclosure is to provide an anti-counterfeiting laminate which can be easily differentiated from another fake foil, by a consumer.
[0012] Another object of the present disclosure is to provide an anti-counterfeiting laminate so as to enable a consumer to easily recognize whether blister pack containing a pharmaceutical tablet or capsule, or special chewing gum, or other products is original or fake.

SUMMARY
[0013] In accordance with one aspect the present disclosure, there is provided an anti-counterfeiting laminate for sealing a blister pack, the anti-counterfeiting laminate comprising a plurality of layers selected from the group consisting of: a layer of a non-transparent material selected from a paper, or anon-transparent film, or combination thereof; a film selected from a biaxiallyoriented film, a monoaxial oriented film, a non-oriented film, or combination thereof; an adhesive; an aluminium foil; a sealing layer selected from a lacquer, a film, a coating, or combinations thereof that is compatible with the sealing layer of the thermoformed or cold formed material; and wherein any or a combination of the layers can have a surface area thereof covered with one or more of hidden anticounterfeiting feature(s).
[0014] In an aspect, the anti-counterfeiting laminate comprisesa lowermost heat seal layer selected; an aluminium foil deposited over the heat seal layer; a layer of adhesive applied over the aluminium foil; a layer of a film selected from a biaxiallyoriented film, a monoaxial oriented film, a non-oriented film, or combination thereof deposited over the adhesive applied over the aluminium foil; another layer of adhesive is applied on the film layer deposited on top of the aluminium foil; and a topmost layer of non-transparent material for example paper or films, or combinations thereof applied over the material on top of the aluminium foil; and any or a combination of the layers can have a surface area thereof covered with one or more of hidden anticounterfeiting feature(s).
[0015] In an aspect the sealing layer or heat seal layer is selected from a lacquer, a film, a coating, or combinations thereof that is compatible with the sealing layer of the thermoformed or cold formed material.
[0016] In an aspect the layer of biaxiallyoriented film, the monoaxial oriented film, the non-oriented film, or combination thereof is based on a polyester, polyamide, polypropylene, polyethylene, or polylactic acid.
[0017] In an aspect the preferred film for depositing over the aluminium foil is selected from polyester (PET), oriented polyamide (OPA), biaxially oriented polypropylene (BOPP), biaxially oriented polyethylene (BOPE), or polylactic acid (PLA) film, or combinations thereof.
[0018] In an aspect, the hidden anticounterfeiting feature can be selected from a colour, a complementary colour, a print, a printed information, a hologram, forensic feature, taggants, and the like.
[0019] In an aspect, any or a combination of the layer of paper, the layer of biaxiallyoriented film, the monoaxial oriented film, the non-orientedfilm is metallized.
[0020] In an aspect, the metallization is carried out by vacuum deposition, or transfer metallization of a metal, organic or inorganic substances on the each of the layers of paper and a film selected from biaxially oriented film, mono axial oriented film, or non-oriented film.
[0021] In an aspect,the layer of the film depositing over the aluminium foil, selected from polyester (PET), oriented polyamide (OPA), biaxially oriented polypropylene (BOPP), biaxially oriented polyethylene (BOPE), or polylactic acid (PLA) film is coloured or transparent or opaque.
[0022] In an aspect the aluminium foil can be hard or soft tempered.
[0023] In an aspect the aluminium foil can be colored on one or both sides, or the surface of the foil can be dull on one side and shiny on the other side, or shiny on both sides.
[0024] Various objects, features, aspects and advantages of the inventive subject matter will become more apparent from the following detailed description of preferred embodiments.

DETAILED DESCRIPTION
[0025] The following is a detailed description of embodiments of the invention disclosed herein. The embodiments are in such details as to clearly communicate the invention. However, the amount of details offered is not intended to limit the anticipated variations of embodiments; on the contrary, the intention is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the present invention.
[0026] Unless the context requires otherwise, throughout the specification which follow, the word “comprise” and variations thereof, such as, “includes” and “comprising” are to be construed in an open, inclusive sense that is as “including, but not limited to.”
[0027] Reference throughout this specification to “an exemplary embodiment”, “one embodiment” or “an embodiment” means that a particular feature, structure or characteristic described in connection with the embodiment is included in at least one embodiment. Thus, the appearances of the phrases “in exemplary embodiment”, “in one embodiment” or “in an embodiment” in various places throughout this specification are not necessarily all referring to the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.
[0028] As used in the description herein and throughout the claims that follow, the meaning of “a,” “an,” and “the” includes plural reference unless the context clearly dictates otherwise. Also, as used in the description herein, the meaning of “in” includes “in” and “on” unless the context clearly dictates otherwise.
[0029] Reference will now be made in detail to the exemplary embodiments of the present invention, examples of which are illustrated in the accompanying drawings. Wherever possible, the same reference numbers are used in the drawings and the description to refer to the same or like parts.
[0030] The following discussion provides many example embodiments of the inventive subject matter. Although each embodiment represents a single combination of inventive elements, the inventive subject matter is considered to include all possible combinations of the disclosed elements. Thus, if one embodiment includes elements A, B, and C, and a second embodiment includes elements B and D, then the inventive subject matter is also considered to include other remaining combinations of A, B, C, or D, even if not explicitly disclosed.
[0031] Pharmaceutical companies desire that a consumer be able to easily recognize whether a blister pack containing tablets, capsules, chewing gum, or other products is an original pack or a fake one, by implementing features in the original blister pack which make it very difficult for a counterfeiter or forger to tamper with the same.
[0032] The foil used for sealing a blister pack is composed of multiple layers of different materials formed over each other to form the foil. Conventionally, the layers include a lowermost heat seal layer, an aluminium film deposited over the heat seal layer, a layer of adhesive applied over the aluminium film and a top layer of a biaxially-, monoaxial- or non-oriented film deposited over the adhesive. Optionally, another layer of adhesive can be applied on the film on top of the aluminium and a layer of paper and/or non-transparent film, and or aluminium can be deposited over the film on top of the aluminium as a topmost layer to facilitate printing thereon the information about the product for example, name of the pharmaceutical, type of pharmaceutical, the company producing the pharmaceutical, and other information.
[0033] Typically, the foil with the optional paper layer or non-transparent film as the topmost layer is used as it facilitates care givers in a hospital to easily write a medication regimen on it. The foil without the optional paper layer and with the biaxially oriented film as the top layer is used where a pharmaceutical company prefers that the aluminium metal surface be seen for better marketing, and also for cost savings.
[0034] The present disclosure provides an anti-counterfeitinglaminate for sealing blister packs. The anti-counterfeiting laminate comprises one or more hidden anticounterfeiting feature(s) selected from overt, covert, forensic, or combinations thereof included in the laminate at the time of production, which make it practically impossible for the counterfeiter to manipulate the foil or said hidden anticounterfeiting feature(s) render it most unlikely for counterfeiters to produce a counterfeited foil with identical features.
[0035] In accordance with one embodiment of the present disclosure, there is provided an anti-counterfeiting laminate for sealing a blister pack, the anti-counterfeiting laminate comprising a plurality of layers selected from the group consisting of a paper, or a non-transparent film, or combination thereof; a film selected from a biaxiallyoriented film, a monoaxial oriented film, a non-oriented film, or combination thereof;an adhesive;an aluminium foil; a sealing layer selected from a lacquer, a film, a coating, or combinations thereof that is compatible with the sealing layer of the thermoformed or cold formed material; and wherein any or a combination of the layers can have a surface area thereof covered with one or more of overt, covert, or forensic hidden anticounterfeiting feature(s).
[0036] In accordance with an embodiment of the present disclosure, anti-counterfeiting laminate may comprise various layers including but not limited toa lowermost heat seal layer; an aluminium foil deposited over the heat seal layer; a layer of adhesive applied over the aluminium foil; a layer of a film selected from a biaxially oriented film, a monoaxial oriented film, a non-oriented film, or combination thereof deposited over the adhesive applied over the aluminium foil; another layer of adhesive applied on the layer of film deposited on top of the aluminium foil; and a topmost layer of non-transparent material for example paper or films, or combinations thereof applied over the adhesive material applied on the layer of film deposited on top of the aluminium foil, to facilitate printing thereon the information about the product; and a surface area of any or combination of layers provided with one or more of overt, covert, or forensic anticounterfeiting feature(s).
[0037] In an exemplary embodiment, the heat seal layer applied on the aluminium foil can be in an amount ranging from about 4.0 – about 11.0 g/m2.
[0038] In an exemplary embodiment, the layer of film selected from a biaxially oriented film, amonoaxial oriented film, or a non-oriented film can be of thickness ranging from about 10 - about 45 µm, preferably about 10 - about 30 µm.
[0039] In an exemplary embodiment, the adhesive applied on the layer of film selected from a biaxially oriented film, a monoaxial oriented film, or a non-oriented film, or applied on the aluminium foil can be in an amount ranging from about 2.0 – about 9.0 g/m2.
[0040] In an embodimentthe overt, covert, or forensic anticounterfeiting feature can be selected from one or more of a colour, a complementary colour, a print, a printed information, a hologram, a forensic feature, taggants, or the like, or combinations thereof.
[0041] In one embodiment the biaxially oriented film, monoaxial oriented film, or the non-oriented film can be based on polyester (PET), polyamide (PA), polypropylene (PP), polyethylene (PE), polylactic acid(PLA), or combinations thereof.
[0042] In an embodiment the film for depositing over the aluminium foil is selected from polyester (PET), oriented polyamide (OPA), biaxially oriented polypropylene (BOPP), biaxially oriented polyethylene (BOPE), or polylactic acid (PLA) film, or combinations thereof.
[0043] In one embodiment, the sealing layer or the heat seal layer is selected from a lacquer, a film, a coating, or combinations thereof that is compatible with the sealing layer of the thermoformed or cold formed material.
[0044] In one embodiment, the coating layer or film to be used as a heat seal layer is selected from a polyester (PET), polyamide (PA), polypropylene (PP), polyethylene (PE), polylactic acid(PLA), or combination thereof.
[0045] In an embodiment the adhesive layer to be applied over the biaxially oriented film, or monoaxial oriented film, or the non-orientedfilm is based on polyester (PET), polyamide (PA), polypropylene (PP), polyethylene (PE), polylactic acid(PLA), or combinations thereof.
[0046] In an embodiment any or a combination of the layer of paper; the layer of film selected from the biaxiallyoriented film, the monoaxial oriented film, or the non-oriented film is metallized.
[0047] In an embodiment the metallization is carried out by vacuum deposition, or transfer metallization of a metal, organic or inorganic substances on the each of the layers of paper; or the film selected from biaxially oriented film, mono axial oriented film, or non-oriented film.
[0048] In an embodiment the aluminium foil can be hard or soft tempered.
[0049] In an embodiment the aluminium foil can have the surface of the foil dull on one side and shiny on the other side, or shiny on both sides.
[0050] In an embodiment the aluminium foil can be colored on one or both sides.
[0051] In an embodiment, the layer of the film depositing over the aluminium foil, selected from polyester (PET), oriented polyamide (OPA), biaxially oriented polypropylene (BOPP), biaxially oriented polyethylene (BOPE), or polylactic acid (PLA) film is coloured or transparent or opaque.
[0052] In one embodiment one or more layer(s) selected from the layer of paper; the aluminium foil; and the layer of filmselected from biaxially oriented film, mono axial oriented film, or non-oriented film can be made of same colour or of combination of complimentary colours. For example, one of the layers can be made of cyan colour and the other layer can be made of yellow colour to give the appearance of green colour.
[0053] In an embodiment, the layer of paper; the aluminium foil; or the layer of film selected from a biaxially oriented film, a monoaxial oriented film, or a non-oriented film can have 100% surface area of each of the layers covered with a samecolour or a combination of different colours.
[0054] In an embodiment, the layer of paper; the aluminium foil; or the layer of film selected from a biaxially oriented film, amonoaxial oriented film, or a non-oriented film can have part of the surface area of each of the layers covered with a same colour or a combination of different colours.
[0055] In one embodiment only paper on the inner side has the surface covered with colour. In another embodiment only the layer of film selected from a biaxially oriented film, a monoaxial oriented film, or a non-oriented film, on the side facing the paper layer, or the side facing the aluminium foil, or both the sides has the surface(s) covered with colour, in instance of both the sides of the surfaces being covered with colour, each of the sides are covered with complimentary colours. For example, one sides of the layer of film can have the surface covered with cyan colour and the other side surface covered with yellow colour to give the appearance of green colour.
[0056] In an exemplary embodiment, the layer of paper, or the layer of film selected from a biaxially oriented film, a monoaxial oriented film, or a non-oriented film, each can have 100% surface area thereof covered with a single or a combination of colours and the other layer can have 100% surface area thereof covered with the same or a combination of complementary colours.
[0057] In one embodiment the layer of paper on the side facing the layer of film, and the layer of film on the side facing the paper, each have the surfaces covered with complimentary colours. For example, one of the layers can have the surface covered with cyan colour and the other layer can have the surface covered with yellow colour to give the appearance of green colour.
[0058] In one embodiment the layer of paper and the layer of film, have the surfaces 100% covered with the colours.
[0059] In one embodiment the layer of paper and the layer of film, have a part of the surfaces covered with the colours.
[0060] In one embodiment the layer of paper and the layer of film, have a part of the surfaces covered with one set of complimentary colours and a part of the surfaces covered with the other colours or set of complimentary colours.
[0061] In an exemplary embodiment, the layer of film selected from a biaxially oriented film, a monoaxial oriented film, or a non-oriented film can have a top surface area or a bottom surface area thereof covered with a same or a combination of colours. Alternately, the layer of film on top of the aluminium foil can have both the top and bottom surface areas thereof covered with combination of complementary colours. For example, the top surface of the layer of the film selected from a biaxially oriented film, a monoaxial oriented film, or a non-oriented film can have one of the complementary colour such as cyan, and the bottom surface of the layer of said film can have the other complementary colour such as red, to give the effect of magenta colour with the combination of cyan and red colours on either side.
[0062] In accordance with the present disclosure, typically, the top surface will be the surface facing the layer of paper and the bottom surface will be the surface facing the layer of aluminium foil.
[0063] In an exemplary embodiment, the layer of film selected from a biaxially oriented film, or the monoaxial oriented film, or the non-orientedfilm based on polyester (PET), polyamide (PA), polypropylene (PP), polyethylene (PE), polylactic acid(PLA), or combinations thereof is coloured or transparent or opaque.
[0064] In an embodiment, the layer of adhesive applied on the layer of film selected from a biaxially oriented film, a monoaxial oriented film, or a non-oriented film; the layer of adhesive applied over the aluminium foil; or both the layers of adhesive can be fully or partly coloured with the same of combination of complementary colours.
[0065] In one embodiment both the adhesive layers can be of the same colour.
[0066] In one embodiment both the adhesive layers can be of the different colour.
[0067] In an exemplary embodiment, the layer of adhesive applied on the biaxially oriented film, or the monoaxial oriented film, or the non-orientedfilm; and the layer of adhesive applied over the aluminium foil can be coloured with a combination of complementary colours. For example, the adhesive applied over one the layer can be of cyan colour and the adhesive applied over the other layer can be of yellow colour to give the effect of green colour.
[0068] In an exemplary embodiment, the inner side of paper; a non-transparent film; an aluminium foil; or the layer of film selected from a biaxially oriented film, a monoaxial oriented film, or a non-oriented film, can have a surface area thereof covered with the same or combination of prints.
[0069] In one embodiment the inner side of the layer of paper on; or the aluminium foil; or the layer of film selected from a biaxially oriented film, a monoaxial oriented film, or a non-oriented film; or each of the layer of paper, the aluminium foil, and the layer of said film,can have 100% surface area fully printed.
[0070] In one embodiment the inner side of layer of paper on the; or the aluminium foil; or the layer of said film selected from a biaxially oriented film, a monoaxial oriented film, or a non-oriented film; or each of the layer of paper, the aluminium foil, and the layer of said film, can have the part of the surface area printed.
[0071] In an exemplary embodiment, the lowermost heat seal layer that is compatible with the sealing layer of thermoformed or cold formed material, can be coloured, or printed, or coloured and printed both.
[0072] The anticounterfeiting laminate in accordance with the present disclosure comprising anticounterfeiting feature(s) being visible by the consumer only after pushing product like tablet or capsule out of the blister pack sealed with anticounterfeiting laminate.
[0073] The anticounterfeiting laminate in accordance with the present disclosure is a sealing layer in the blister pack that is a push through pack where the consumer pushes out the product like tablet, or a capsule by pressing ablister cavity on its outer side with the thumb while breaking the foil, and the colour, the print, or both on the laminate are seen by the consumer after pushing product like tablet or capsule out of the blister pack.
[0074] In an exemplary embodiment, the layer of paper; or the layer of film selected from a biaxially oriented film, a monoaxial oriented film, or a non-oriented film, or both can have a part of a surface area thereof covered with any or a combination of printed information, wherein the information can be any or a combination of name of the pharmaceutical product or active ingredient, type of pharmaceutical, the composition of the pharmaceutical product, name of company producing the pharmaceutical, warnings, brand name, manufacturing date, expiry date, batch number and the like, and wherein the surface can be a top surface, or a bottom surface, or both the surfaces of each of the layers that is the layer of paper and the layer of said film.
[0075] In an exemplary embodiment, the layer of film selected from a biaxially oriented film, a monoaxial oriented film, or a non-oriented film, or the layer of aluminium foil, or both can have a part of a surface area thereof covered with any or a combination of printed information, wherein the information can be any or a combination of printed information, wherein the information can be any or a combination of name of the pharmaceutical product or active ingredient, type of pharmaceutical, the composition of the pharmaceutical product, name of company producing the pharmaceutical, warnings, brand name, manufacturing date, expiry date, batch number and the like, and wherein the surface can be a top surface, or a bottom surface, or both the surfaces, of each of the layers that is the layer of said film, and the aluminium foil.
[0076] In an exemplary embodiment, the layer of paper, or the layer of aluminium foil, or both can have a part of a surface area thereof covered with any or a combination of printed information, wherein the information can be any or a combination of printed information, wherein the information can be any or a combination of printed information, wherein the information can be any or a combination of name of the pharmaceutical product or active ingredient, type of pharmaceutical, the composition of the pharmaceutical product, name of company producing the pharmaceutical, warnings, brand name, manufacturing date, expiry date, batch number and the like, and wherein the surface can be a top surface, or a bottom surface, or both the surfaces of each of the layers that is the layer of paper and the aluminium foil.
[0077] In an exemplary embodiment, the layer of paper and the layer of film selected from a biaxially oriented film, a monoaxial oriented film, or a non-oriented film, and the layer of aluminium foil each can have a part of a surface area thereof covered with any or a combination of printed information, wherein the information can be any or a combination of printed information, wherein the information can be any or a combination of name of the pharmaceutical product or active ingredient, type of pharmaceutical, the composition of the pharmaceutical product, name of company producing the pharmaceutical, warnings, brand name, manufacturing date, expiry date, batch number, or any other desired information, and wherein the surface can be a top surface, or a bottom surface, or both the surfaces of each of the layers that is the layer of paper, the layer of said, and the aluminium foil.
[0078] In alternate exemplary embodiment, printed information includes the printing with fine line, line embossing, microtext, optical variable inks, and the like to be printed on the government documents.
[0079] In accordance with the present disclosure the colour used to cover the surface area of any one or all the layers, or print the information on any one or all the layers of the anticounterfeiting laminate is pharmaceutically accepted ink.
[0080] In an exemplary embodiment, the inner layer of paper, or the layer of film selected from a biaxially oriented film, a monoaxial oriented film, or a non-oriented film, or both, can have a surface area thereof covered with a hologram in combination with a colour, or the printed information, or both, which also covers the surface area thereof, wherein the surface can be a top surface, or a bottom surface, or both the surfaces of each of the layers that is the layer of paper and the layer of said.
[0081] In an exemplary embodiment, the layer of film selected from a biaxially oriented film, a monoaxial oriented film, or a non-oriented film; or the layer of aluminium foil; or both, can have a surface area thereof covered with a hologram in combination with a colour, or the printed information, or both which also covers the surface area thereof, wherein the surface can be a top surface, or a bottom surface, or both the surfaces of each of the layers that is the layer of said film and aluminium foil.
[0082] In an exemplary embodiment, the inner side of layer of paper, or the layer of aluminium foil, or both, can have a surface area thereof covered with a hologram in combination with a colour, or the printed information, or both, which also covers the surface area thereof, wherein the surface can be a top surface, or a bottom surface, or both the surface of each of the layers that is the layer of paper and the aluminium foil.
[0083] In an exemplary embodiment, the layer of paper and the layer of film selected from a biaxially oriented film, a monoaxial oriented film, or a non-oriented film, and the layer of aluminium foil each can have a surface area thereof covered with a hologram in combination with a colour, or the printed information, or both, which also covers the surface area thereof, and wherein the surface can be a top surface, or a bottom surface, or both the surfaces of each of the layers that is the layer of paper, the layer of said film, and the aluminium foil.
[0084] In an exemplary embodiment, the inner side of layer of paper, or the layer of film selected from a biaxially oriented film, a monoaxial oriented film, or a non-oriented film, can be metallized by vacuum deposition of a metal, or organic or inorganic substances thereon to provide the aforesaid anticounterfeiting overt feature, or covert feature, or both the types of features. For example, a bottom surface of the paper and both the top and bottom surfaces of said film can be metallized.
[0085] In an exemplary embodiment, an outer side of the laminate can be printed, or coloured, or printed and coloured containing anti-counterfeiting features.
[0086] It may be appreciated that the anti-counterfeiting laminate is not limited to have the various combinations of overt, covert and forensic features as per the aforesaid exemplary embodiments, and that various other features involving different patterns, colours, prints, and the like may be provided on the anti-counterfeiting laminate, all falling within the scope of the present disclosure.
[0087] Thus, the anti-counterfeiting laminate comprising aforesaid multiple overt, or covert, or both the overt and covert features included therein at the time of production of the laminate, will make it impossible for the counterfeiter to manipulate the laminate or produce a counterfeited laminate with identical features and help achieve tamper proof blisterpacks.

ADVANTAGES
[0088] At least some of the technical advantages offered by the anti-counterfeiting laminate provided by the present disclosure include:
• producing tamper proof blister packs;
• making it impossible for a counterfeiter to create a similar laminate;
• enabling a consumer to easily differentiate the anti-counterfeiting laminate from another fake foil; and
• enabling a consumer to easily recognize whether blister pack containing a pharmaceutical tablet/capsule is original or fake.
[0089] While the foregoing describes various embodiments of the invention, other and further embodiments of the invention may be devised without departing from the basic scope thereof. The scope of the invention is determined by the claims that follow. The invention is not limited to the described embodiments, versions, for example, which are included to enable a person having ordinary skill in the art to make and use the invention when combined within formation and knowledge available to the person having ordinary skill in the art.
[0090] The disclosure will now be illustrated with working example, which is intended to illustrate the working of disclosure and not intended to take restrictively to imply any limitations on the scope of the present disclosure. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood to one of ordinary skill in the art to which this disclosure belongs. Although methods and materials similar or equivalent to those described herein can be used in the practice of the invention compositions, the exemplary method, and materials are described herein. It is to be understood that this disclosure is not limited to particular method, and experimental conditions described, as such methods and conditions may vary.

Example 1
Anticounterfeiting laminate with the reverse printed PET film and hologram on the backside of the paper
[0091] The anticounterfeiting laminate with the reverse printed PET film and hologram on the backside of the paper for peel push sealing of blister pack were produced using the following materials:
Paper - 50 g/m2
Adhesive - 3.2 g/m2
PET film - 12 µm
Adhesive - 5 g/m2
Soft tempered Al foil - 20 µm and 25 µm
Heat seal layer of lacquer - 7 g/m2
[0092] The process parameters used were as follows:
Sealing Temperature - 220 degree C
Dwell time - 0.5 sec
Pressure - 500 kPa
Seal strength to PVdC of the base layer of blister pack - = 7 N/15 mm
[0093] The layer of paper was printed on the inner side with a desired hologram. The PET film was reverse printed with red colour. The layer of lacquer was coated on the soft tempered aluminium, reverse printed PET film was applied with the adhesive and laminated to the aluminium foil on the opposite side coated with lacquer and allowed to cure for one day, on the second day, the resultant PET/ Al foil/ HSL was laminated with paper printed on the inner side with a desired hologram with the application of adhesive and cured for about one to four days to provide anticounterfeiting laminate with reverse printed PET and hologram on the inner side of the paper but otherwise hidden from the outer side.
The anticounterfeiting laminate thus produced was sealed on the formed base laminate containing the product in the cavities with the process parameters as mentioned above. Only after pushing the product by pressing the cavity of the blister pack, rupturing and exposing the inner side of the laminate the hidden anticounterfeiting features such as coloured PET film and hologram on the paper can be seen by the consumer.
[0094] From the foregoing, it will be appreciated that, although specific embodiments of the invention have been described herein merely for purposes of illustration, various modifications may be made without deviating from the spirit and scope of the invention and should not be constsrued so as to limit the scope of the invention or the appended claims in any way.
,CLAIMS:1. An anti-counterfeiting laminate for sealing blister packs comprising a plurality of layers selected from the group consisting of a layer of a non-transparent material selected from a paper or non-transparent film; a film selected from a biaxiallyoriented film, a monoaxial oriented film, or a non-oriented film; an adhesive; an aluminium foil; a heat seal layer; and wherein any or a combination of the layers has a surface area thereof covered with one or more of overt, covert, or forensic hidden anticounterfeiting feature(s).
2. The anti-counterfeiting laminate as claimed in claim 1 wherein the heat seal layer selected from a lacquer, a film, and a coating that is compatible with the sealing layer of the thermoformed or cold formed material.
3. The anti-counterfeiting laminate as claimed in any one of the claims 1, wherein theanti-counterfeiting laminate comprises the lowermost heat seal layer; the aluminium foil deposited over the heat seal layer; the layer of adhesive applied over the aluminium foil; the layer of a film selected from a biaxially oriented film, a monoaxial oriented film, or a non-oriented film deposited over the adhesive applied over the aluminium foil; another layer of adhesive applied on the layer of film deposited on top of the aluminium foil; and a topmost layer of non-transparent material applied over the adhesive material applied on the layer of film deposited on top of the aluminium foil, wherein the surface area of any or combination of layers is provided with one or more of overt, covert, or forensic hidden anticounterfeiting feature(s).
4. The anti-counterfeiting laminate as claimed in any of the preceding claims, wherein theovert, covert, or forensic hidden anticounterfeiting feature is selected from one or more of a colour, a complementary colour, a print, a printed information, a hologram, a forensic feature, ortaggants.
5. The anti-counterfeiting laminate as claimed in any of the preceding claims, wherein thebiaxially oriented film, monoaxial oriented film, or the non-oriented film is based on polyester (PET), polyamide (PA), polypropylene (PP), polyethylene (PE), and polylactic acid(PLA).
6. The anti-counterfeiting laminate as claimed in 5, wherein thebiaxially oriented film, monoaxial oriented film, or the non-oriented film is selected from polyester (PET), oriented polyamide (OPA), biaxially oriented polypropylene (BOPP), biaxially oriented polyethylene (BOPE), or polylactic acid (PLA) film.
7. The anti-counterfeiting laminate as claimed in any of the preceding claims, wherein the layer of paper; the aluminium foil; or the layer of film selected from thebiaxially oriented film, monoaxial oriented film, or the non-oriented film; or each of the layers ismade of same colour or of combination of complimentary colours.
8. The anti-counterfeiting laminate as claimed in any of the preceding claims, wherein the layer of paper; or the aluminium foil; or the layer of film selected from thebiaxially oriented film, monoaxial oriented film or the non-oriented filmhas 100% surface area covered with a colour or a combination of different colours.
9. The anti-counterfeiting laminate as claimed in any of the preceding claims, wherein thelayer of paper and the aluminium foil; or the layer of paper and the layer of film selected from thebiaxially oriented film, monoaxial oriented film; or the aluminium foiland the layer of film selected fromthebiaxially oriented film, monoaxial oriented film; or the layers of paper, the aluminium foil, and thelayer of film selected from the biaxially oriented film, monoaxial oriented film or the non-oriented film have surface area covered with a same colour or a combination of complimentary colours.
10. The anti-counterfeiting laminate as claimed in any of the preceding claims, wherein thelayer of film selected from thebiaxially oriented film, monoaxial oriented film, or the non-oriented film on the side facing the paper layer; or the side facing the aluminium foil; or both the sides has the surface(s) covered with colour, in instance of both the sides of the surfaces being covered with colour, each of the sides are covered with the same of complimentary colours.
11. The anti-counterfeiting laminate as claimed in claim9 or 10, wherein the layer of paper and the layer of film, have the part of the surfaces, or 100% of the surfaces covered with colours.
12. The anti-counterfeiting laminate as claimed in any of the preceding claims, wherein the layer of adhesive applied on the layer of film selected from thebiaxially oriented film, monoaxial oriented film, or the non-oriented film; the layer of adhesive applied over the aluminium foil; or both the layers of adhesive is fully or partly coloured with the same of combination of complementary colours.
13. The anti-counterfeiting laminate as claimed in any of the preceding claims, wherein the inner side of paper; a non-transparent film; an aluminium foil; or the layer of film selected from thebiaxially oriented film, monoaxial oriented film, or the non-oriented film, has a surface area thereof covered with the same or combination of prints.
14. The anti-counterfeiting laminate as claimed in any of the preceding claims, wherein the inner side of the layer of paper; or the aluminium foil; or the layer of the film selected from the biaxially oriented film, monoaxial oriented film, or the non-oriented film; or each of the layer of paper, the aluminium foil, and the layer of said film has the 100% surface area or part of the surface area printed.
15. The anti-counterfeiting laminate as claimed in any of the preceding claims, wherein the heat seal layer is coloured, or printed, or coloured and printed both.
16. The anti-counterfeiting laminate as claimed in any of the preceding claims, wherein the layer of paper; or the layer of film selected from thebiaxially oriented film, monoaxial oriented film, or the non-oriented film; or both have a part of a surface area thereof covered with printed information, and wherein the surface is a top surface, or a bottom surface, or both the surfaces of each of the layers.
17. The anti-counterfeiting laminate as claimed in claim 16, wherein the printed information includes name of the pharmaceutical product or active ingredient, type of pharmaceutical, the composition of the pharmaceutical product, name of company producing the pharmaceutical, warnings, brand name, manufacturing date, expiry date, batch number and other desired information.
18. The anti-counterfeiting laminate as claimed in claim 16, wherein the printed information is selected from fine line, line embossing, microtext, and optical variable inks to be printed on the government documents.
19. The anti-counterfeiting laminate as claimed in any of the preceding claims, wherein the inner layer of paper; or the layer of film selected from thebiaxially oriented film, monoaxial oriented film, or the non-oriented film; or both the layers have a surface area thereof covered with a hologram in combination with a colour, or the printed information, or both, wherein the surface is a top surface, or a bottom surface, or both the surfaces of each of the layers.
20. The anti-counterfeiting laminate as claimed in any of the preceding claims, wherein the layer of film selected from thebiaxially oriented film, monoaxial oriented film, or the non-oriented film; or the layer of aluminium foil; or both, have a surface area thereof covered with a hologram in combination with a colour, or the printed information, or both, wherein the surface is a top surface, or a bottom surface, or both the surfaces of each of the layers.
21. The anti-counterfeiting laminate as claimed in any of the preceding claims, wherein the inner side of layer of paper; or the layer of aluminium foil; or both, have a surface area thereof covered with a hologram in combination with a colour, or the printed information, or both, wherein the surface is a top surface, or a bottom surface, or both the surface of each of the layers.
22. The anti-counterfeiting laminate as claimed in any of the preceding claims, wherein the layer of paper; and the layer of film selected from thebiaxially oriented film, monoaxial oriented film, or the non-oriented film; and the layer of aluminium foil each have a surface area thereof covered with a hologram in combination with a colour, or the printed information, or both, wherein the surface is a top surface, or a bottom surface, or both the surfaces of each of the layers of paper, the layer of said film, and aluminium foil.
23. The anti-counterfeiting laminate as claimed in any of the preceding claims, wherein the inner side of layer of paper; or the layer of film selected from thebiaxially oriented film, monoaxial oriented film, or the non-oriented film, is metallized by vacuum deposition of a metal, or organic or inorganic substances thereon to provide the hidden anticounterfeiting overt feature, or covert feature, or both the types of features
24. The anti-counterfeiting laminate as claimed in any of the preceding claims, whereinthe hidden anticounterfeiting feature(s) being visible by the consumer only after pushing product like tablet or capsule out of the blister pack sealed with the anticounterfeiting laminate.