NOVEL HOLOGRAPHIC PACKAGING AND A METHOD OF MANUFACTURE THEREOF
This invention claims the benefit of provisional specification filed on with the
application no.
FIELD OF INVENTION
The present invention refers to highly secure holographic packaging, in particular blister
packaging and method for manufacturing the same.
BACKGROUND OF THE INVENTION
Holograms are well known three-dimensional optical images and appear to have depth. A hologram is based on a source image and can be described as a phase record of a light reflected by the source image. When the holograms are subsequently lightened with suitable light beam, it produces a reconstruction image which corresponds to the source image. In reflection holograms, the kind that can be viewed in normal light, two laser beams and a photographic plate are used to take an image of the object.
When viewing any object, the human eyes each receive a distinct image, from slightly reference points. The brain combines them to produce a three dimensional images. The hologram produces the effect artificially by means of interference pattern between the two original images.
Holograms are printed on manufactured products in particular for providing an
authenticity proof of the product. This is used for credit cards and money bills, for
example, because it makes it possible to detect counterfeiting rapidly. In fact, holograms

are used as authenticity providing elements because they are difficult to reproduce, due to the technical means which are necessary for hologram generation and printing.
Holograms are classified into different types with reference to the degree of level of optical security incorporated in them during the process of master origination. Holograms can also have multilayers, for instance, two-layer with a foreground and a background or three-layer with foreground, middle ground and background.
Usually, the process of hologram printing consists of first, master origination wherein the 2 dimensional artwork is converted to a 3 dimensional glass master. After this, the master is copied and embossed, i.e., image is transferred to a metallised polyester film, laminated, die cut and finished.
PRIOR ART
In the patent US7563545, a hologram transfer sheet is provided comprising a peel able layer; a relief formation layer having a relief; and a metal thin layer, which are sequentially formed on a substrate, capable of preventing a crack or discoloration of the metal thin layer which may be caused by heat or stress when transferred onto a transfer receiving body the transfer sheet is made of a norbornene-based resin. In patent US6697179 a multi-layer hologram label is taught which includes a base layer having a surface on which a number of layers of adhesive materials are coated in a stacked manner. Each layer has a surface on which a pattern associated with a holographic image is formed whereby by sequentially removing the layers, the patterns

of the next layers are sequentially exposed for displaying the associated holographic
image.
US20070103746 teaches a security hologram is described that contains an integral
image, which is made up of several holographic images near or farther away from the
recording medium.
780/MUM/2001 teaches a novel hologramed laminate comprising two or more plastic
and/or non-plastic layers which are laminated with one or more hologram strip(s),
wherein the layer of plastic or non-plastic located over the hologram strip(s) being
transparent or translucent so as to allow the hologram strip(s) to be seen through.
US 20090251749 relates to the use of holograms in identification or transaction cards,
passports, and other objects. The hologram may be hot-stamped onto a PVC or
polycarbonate substrate or applied by direct casting of the holographic image with UV
curing which provides for a tough holographic image with high integrity and does not
deform under high heat and pressure.
The hot stamping of a hologram onto polyvinyl chloride (PVC), Polyethylene
Tetrapthalate Glycol (PETG) or other plastic substrate is a standard method used to
attach optically variable devices like holograms to ID or financial transaction cards.
Other than this, a hologram may be formed directly on a polymeric film substrate using
a conventional casting process or by an embossing technique wherein a sub-master is
urged against thin plastic film under sufficient heat and pressure to transfer the surface
relief pattern into a surface of the film. However, most of the holograms formed by the
processes above are susceptible to heat and pressure changes and may get distorted.

Holograms are security devices and commonly used for drug packaging. Though holograms have been used in packaging of pharmaceuticals and in blister packing, it has usually been done on aluminium blister packaging or on the metal side but visible through the transparent PVC side or fixed as thin strips on the PVC side. The present invention is however unique in that the metallised film on which the image is embossed may be incorporated as a part of the hologram process. Further, the surface on which the hologram is transferred is a polyvinyl chloride (PVC) surface as used in blister packaging. The process involves low optical density (OD) metallising on holographic embossing without touching the sealing side of PVC, enabling blister packs to be produced with the hologram on the blister side.
OBJECTIVE OF INVENTION
It is an object of the present invention to provide a holographic packaging which is
secure and difficult to reproduce.
It is also an object of the invention to provide a method of manufacturing the
holographic packaging.
It is further an object of the invention to provide holographic blister packaging and its
method of manufacture.
SUMMARY OF INVENTION
The present invention relates to a holographic blister packaging having non replicable security features comprising:

a lower side of packaging material like aluminium or paper; and
a upper side made of a low optical density metallised PVC substrate with a
special tamper evident chemical coating. The present invention also relates to a method of manufacturing a holographic blister packaging with non replicable security features comprising:
making the artwork;
creating the holographic recording and master origination;
embossing whereby the impression of the hologram is transferred onto a low
optical density metallised PVC substrate without touching the sealing side of
PVC; and
converting into the holographic blister package by application of heat and
pressure. The present invention uses a low optical density metallising on holographic embossing without touching the sealing side of PVC. This enables blister packs to be produced with the hologram on the blister side.
This advanced hologram for blister packaging can save time and money in production as it does not require changes to the set up of existing packaging machines. Metallising also enhances the barrier property of PVC blister film with a high temperature scratch proof coating on the hologram, which can be transparent or coloured.
DETAILED DESCRIPTION OF INVENTION
Brief description of drawings:

Fig. 1 provides a detailed flowchart of the manufacturing process.
In the present invention the following steps are involved in the process for the hologram
blister packaging:
The first step is the making of the creation of artwork which is generated in a computer
on the basis of the desired design with some of it in the background and part in the
foreground and making the images camera ready.
Following this, special cameras are used to make "the positive" and "the negative" of
each layer from the camera-ready work.
Each layer image is exposed to laser light with the help of imaging devices and
recording the same on a surface of an ultra clean, photo sensitive and specialized glass
plate. By this process, the original two dimensional image of the artwork gets
transformed into a "three dimensional" impression on the surface of "the glass master",
called the hologram.
During this process the effect of depth can be incorporated into the hologram as well as
any inbuilt security feature like code numbers, etc. This imparts the optical security
feature to the hologram.
The 3D impression of the hologram is then transferred from the surface of glass plate to
a nickel plate.
The surface on which embossing is done is the specially prepared and coated PVC
surface which is also metallised. Here the multi-coloured, three-dimensional impression
of the hologram is transferred from the surface of the shim to the metallised PVC
surface through optimal application of heat and pressure.

A special chemical coating which is a tamper evident coating on the base of the PVC
film imparts an important additional security feature to the hologram, to detect any
attempt at its unauthorized removal from the surface of a product or of its packaging or
of a document.
The unique feature is that this surface is then directly usable as a holographic blister package.
The metallised PVC blister side containing the hologram is highly resistant to scratch and also
can withstand high temperature and pressures. Metallising also enhances the barrier
property of PVC blister film
The metallised blister packaging with the hologram is unique and can be used as a
tamper proof package for drugs and similar materials which are blister packed.
Advantages of the invention
1. The holographic blister packaging is highly secure and tamper proof.
2. This novel method of packaging can be used in the packaging of drugs which are highly prone to counterfeiting.
3. The method can be used by the manufacturers without changing majorly the existent production technique and hence it is easy to adopt.
4. The method is different from just labeling using hologram stickers since here it is actually embedded onto the substrate and cannot be peeled off or reproduced easily.

We claim:
1. A holographic blister packaging having non replicable security features comprising: a lower side of packaging material like aluminium or paper; and
a upper side made of a low optical density metallised PVC substrate with a special tamper evident chemical coating.
2. A holographic blister packaging as claimed in claim 1 wherein the hologram is embossed on the PVC side.
3. A holographic blister packaging as claimed in claim 1 or 2 wherein the PVC side may be transparent or coloured.
4. A method of manufacturing a holographic blister packaging with non replicable security features comprising:
making the artwork;
creating the holographic recording and master origination;
embossing whereby the impression of the hologram is transferred onto a low
optical density metallised PVC substrate without touching the sealing side of
PVC; and
converting into the holographic blister package by application of heat and
pressure.
5. A holographic blister packaging as described in the specification and drawings for use in pharmaceuticals.