FORM-2
THE PATENTS ACT, 1970
(39 of 1970)
&
THE PATENTS RULES, 2003
COMPLETE SPECIFICATION
(See Section 10; rule 13)
A PACKAGING LAMINATE
BILCARE LIMITED
an Indian Company
of 601, ICC Trade Tower, Pune- 411016,
Maharashtra, India.
THE FOLLOWING SPECIFICATION PARTICULARLY DESCRIBES THE INVENTION AND THE MANNER IN WHICH IT IS TO BE PERFORMED.

FIELD OF THE DISCLOSURE
The present disclosure relates to a laminate.
Particularly, the present invention relates to a laminate suitable for use in the packaging industry.
BACKGROUND
Presently, a significant fraction of healthcare products and variety of other products including consumable products and non edible products are packed in polymer packaging materials.
It has become the most-used packing material in food and consumer durables due to its malleability and durability. Furthermore, it is also offers a lot of flexibility when it comes to molding it into almost any shape and size.
Degradation problems associated with the plastics are well known and there is an increasing environmental concern over the use of plastic in the manufacture of packaging material. Plastic pollution has become a worldwide concern. Discarded plastic bags/pouches have been linked to major disasters. The flood in Mumbai, India, that killed almost 1,000 people was traced to plastic bags clogging storm drains.
Recently, Hon. Supreme Court of India ordered a ban on the sale of tobacco, gutka and pan masala in plastic pouches in response to the petition filed by the Indian Asthma Care Society to restrain gutka manufacturers from using plastic packaging material.
In view of the incorrigible anti-environmental effects of plastic, there exists a need for an alternative packaging material which is devoid of plastic.

OBJECTS
Some of the objects of the present disclosure, which at least one embodiment herein satisfies, are as follows:
It is an object of the present disclosure to provide a laminate for packaging of pharmaceutical products, edible products and non edible products.
It is another object of the present disclosure to provide a laminate which is devoid of polymeric material.
It is yet another object of the present disclosure to provide a laminate which is environment friendly.
It is still another object of the present disclosure provide an economically viable moisture barrier laminate for the protective packaging of moisture sensitive substances.
It is a further object of the present disclosure to provide a packaging laminate which is useful as an anti-counterfeit feature.
SUMMARY
These and other objects of the present disclosure are to a great extent dealt in the disclosure.
In accordance with the present disclosure there is provided a packaging laminate comprising:

a. a base comprising a metallic layer with a thickness ranging
between 7 to 40 microns;
b. a paper layer with a thickness ranging between 30 to 60 GSM;
and
c. an intermittent adhesive layer.
Typically, the metallic layer is in the form of a metal foil.
Typically, the metal foil is at least one selected from the group consisting of aluminum foil, gold foil, silver foil, copper foil and platinum foil.
Preferably, the metallic layer is an aluminium foil.
Still preferably, the metallic layer is soft tempered aluminium.
Typically, the paper for the paper layer is at least one selected from the group that include but not limited to Map litho paper, chromo art paper, bleached kraft paper, glassine paper and the like.
In accordance with another embodiment of the present disclosure the packaging laminate further comprises at least one lacquer selected from the group consisting of colored lacquer and colorless lacquer layer having thickness of 1.5 to 7.5 GSM.
Typically, lacquer is of food and pharmaceutical grade.
Typically, the lacquer is at least one heat sealed lacquer consisting of organic such as corn and inorganic bases along with low molecular weight solvent.
Typically, the lacquer is a heat seal lacquer which is a combination of vinyl and acrylic resin.

Typically, the adhesive layer is selected from the group that includes but not limited to polyurethane, acrylate, isocyanide and combinations thereof.
In accordance with another aspect of the present disclosure there is provided a process for the preparation of a packaging laminate; said process comprising the following steps:
■ selecting a base comprising a metallic layer with a thickness in the range of 7 to 40 microns; and
■ laminating a paper layer with a thickness in the range of 30 to 60 GSM by means of an intermittent adhesive layer to form a laminate.
In accordance with another embodiment of the present disclosure the process further comprising a method step of coating the laminate with a heat seal lacquer.
In accordance with one of the embodiments of the present disclosure the process further includes subjecting the selected metallic layer to corona treatment before applying a paper layer on the base.
Typically, the adhesive is applied through a gravure applicator cylinder.
In accordance with another embodiment of the present disclosure the adhesive is applied on a paper layer as the primary web and metallic layer is applied as a secondary web.
Typically, the lacquer is coated on the metallic layer by means of three roll applicator to ensure uniform thickness.
In accordance with another embodiment of the present disclosure the process further includes method steps of curing the laminate, passing it

through a heated tunnel with supporting rollers, aging the laminate at 45 to 60°C for about 24 hours and subjecting the laminate to online corona treatment.
In accordance with another embodiment of the present disclosure the process further comprises subjecting the operatively outer surface of the laminate to flexographic printing for incorporating unique overt and covert features to impart anti-counterfeit effect to the laminate. Typically, the outer surface is a paper layer.
Typically, the printing is carried out using alcohol-based inks.
In accordance with one of the embodiments of the present disclosure the operatively outer surface of the laminate is further coated with a primer to impart scuff resistance to the laminate.
In accordance with still another aspect of the present disclosure there is
provided a container made from the packaging laminate of the present
disclosure.
Typically, the container includes but not limited to pouch, sachet, packets,
bags and the like.
DETAILED DESCRIPTION OF THE DISCLOSURE
In accordance with the present disclosure there is provided a packaging laminate which is devoid of plastic.
The packaging laminate of the present disclosure comprises a base comprising a metallic layer, a paper layer and an intermittent adhesive layer.
The metallic layer of the present packaging laminate is in the form of a metal foil. Typically, the metal foil is at least one selected from the group

consisting of aluminum foil, gold foil, silver foil, copper foil and platinum foil.
In accordance with one preferred embodiment the metallic layer of the present laminate is an aluminium foil. Still preferably, the metallic layer is soft tempered aluminium. Typically, the thickness of the metallic layer is 7 to 40 microns.
The paper used for the paper layer of the laminate of the present disclosure is at least one selected from the group consisting of Map litho paper, chromo art paper, bleached kraft paper, glassine paper and the like.
In accordance with another embodiment of the present disclosure the packaging laminate further comprises at least one lacquer layer selected from the group consisting of colored lacquer and colorless lacquer having thickness of 1.5 to 7.5 GSM.
The lacquer used in accordance with the present disclosure is of food and pharmaceutical grade.
In accordance with one embodiment of the present disclosure the lacquer is at least one heat sealed lacquer consisting of organic such as corn and inorganic bases along with low molecular weight solvent.
In accordance with one preferred embodiment of the present disclosure the lacquer is a heat seal lacquer which is a combination of vinyl and acrylic resin. Solvent retaining capacity of the selected lacquer is minimal and this helps in preserving the aroma of the contents.

The adhesive layer used for the preparation of laminate of the present disclosure is selected from the group that includes but not limited to polyurethane, acrylate, isocyanide and combinations thereof.
In accordance with another aspect of the present disclosure there is provided a process for the preparation of a packaging laminate. The process in accordance with the present disclosure is described herein below.
In the first step, a base comprising a metallic layer with a thickness in the range of 7 to 40 microns is selected. The metallic layer of the present packaging laminate is in the form of a metal foil. Typically, the metal foil is at least one selected from the group consisting of aluminum foil, gold foil, silver foil, copper foil and platinum foil.
In accordance with one preferred embodiment the metallic layer of the present laminate is an aluminium foil. Still preferably, the metallic layer is soft tempered aluminium.
In the second step, a paper layer with a thickness in the range of 30 to 60 GSM is applied to the selected metallic layer by means of an intermittent adhesive layer to form a laminate. The paper used for the paper layer of the laminate of the present disclosure is at least one selected from the group consisting of Map litho paper, chromo art paper, bleached kraft paper, glassine paper and the like. The adhesive layer used in accordance with the present disclosure is selected from the group that includes but not limited to polyurethane, acrylate, isocyanide and combinations thereof. Typically, the adhesive is applied through a gravure applicator cylinder.
In accordance with another embodiment of the present disclosure the obtained laminate is then coated with a heat seal lacquer. Typically, the lacquer is coated on the metallic layer by means of three roll applicator to ensure uniform thickness. Typically, the lacquer is selected from the group

consisting of colored lacquer and colorless lacquer. The thickness of lacquer layer is 1.5 to 7.5 GSM. The lacquer used in accordance with the present disclosure is of food and pharmaceutical grade.
In accordance with one preferred embodiment of the present disclosure the lacquer is a heat seal lacquer which is a combination of vinyl and acrylic resin. Solvent retaining capacity of the selected lacquer of the present disclosure is minimal and this helps in preserving the aroma of the contents.
In accordance with one of the embodiments of the present disclosure the process further includes subjecting the selected metallic layer to corona treatment before applying a paper layer on the base. Typically, the corona treatment improves surface energy of the metallic layer.
In accordance with still another embodiment of the present disclosure the adhesive is applied on a paper layer as the primary web and metallic layer is applied as a secondary web.
In accordance with yet another embodiment of the present disclosure the process further includes method steps of curing the laminate, passing it through a heated tunnel with supporting rollers, aging the laminate at 45 to 60°C for about 24 hours and subjecting the laminate to online corona treatment.
The heat treatment in the tunnel ensures ease of handling of the laminate in subsequent processing.
In accordance with another embodiment of the present disclosure the process further comprises subjecting the operatively outer surface of the laminate to flexographic printing for incorporating unique overt and covert features to impart anti-counterfeit effect to the laminate. Typically, the printing is carried out using alcohol-based inks.

In accordance with one of the embodiments of the present disclosure the operatively outer surface of the laminate is further coated with a primer to impart scuff resistance to the laminate.
In accordance with still another aspect of the present disclosure there is provided a container made from the packaging laminate of the present disclosure. Typically, the container includes but not limited to pouch, sachet, packets, bags and the like.
The packaging laminate of the present disclosure is suitable for packing the materials which include but not limited to medicines, food supplements, confectionery products, nutraceuticals, healthcare products and other products such as gutkha, pan masala, Tobacco, Supari, Mouth Freshener and the like.
Following example illustrates the disclosure, but is not intended to limit the scope of the present disclosure.
Example 1
30 GSM glassine paper (as a primary web) was taken. To this, polyurethane adhesive was applied. Then soft tempered aluminium of 25 micron thickness, which is previously online corona treated, was applied as a secondary web to obtain a laminate.
The laminate was then passed through heated tunnel followed by aging at 45 to 60 °C for 24 hours. The aged laminate was subsequently passed through online corona. The aluminium site was coated with heat seal lacquer of thickness 3.5 GSM which was then passed through hot air tunnel for evaporation of solvent. The obtained laminate was printed using alcohol based ink on flexographic printing machine.

TECHNICAL ADVANCEMENT
The packaging laminate of the present disclosure is devoid of
plastic material and hence it is environment friendly.
The packaging laminate of the present disclosure is useful for
packaging of pharmaceutical products, edible products and non
edible products.
The packaging laminate of the present disclosure helps against
counterfeiting.
The packaging laminate of the present disclosure has moisture
barrier property.
Throughout this specification the word "comprise", or variations such as "comprises" or "comprising", will be understood to imply the inclusion of a stated element, integer or step, or group of elements, integers or steps, but not the exclusion of any other element, integer or step, or group of elements, integers or steps.
The use of the expression "at least" or "at least one" suggests the use of one or more elements or ingredients or quantities, as the use may be in the embodiment of the disclosure to achieve one or more of the desired objects or results.
While considerable emphasis has been placed herein on the specific features of the preferred embodiment, it will be appreciated that many additional features can be added and that many changes can be made in the preferred embodiment without departing from the principles of the disclosure. These and other changes in the preferred embodiment of the disclosure will be apparent to those skilled in the art from the disclosure herein, whereby it is to be distinctly understood that the foregoing descriptive matter is to be interpreted merely as illustrative of the disclosure and not as a limitation.

We Claim:
1. A packaging laminate comprising:
a base comprising a metallic layer with a thickness ranging
between 7 to 40 microns;
a paper layer with a thickness ranging between 30 to 60 GSM;
and
an intermittent adhesive layer.
2. The laminate as claimed in claim 1, wherein the metallic layer is in the form of a metal foil selected from the group consisting of aluminium foil, gold foil, silver foil, copper foil and platinum foil.
3. The laminate as claimed in claim 1, wherein the metallic layer is an aluminium foil.
4. The laminate as claimed in claim 1, wherein the metallic layer is soft tempered aluminium.
5. The laminate as claimed in claim 1, wherein the paper for the paper layer is at least one selected from the group consisting of Map litho paper, chromo art paper, bleached kraft paper and glassine paper.
6. The laminate as claimed in claim 1, wherein the packaging laminate further comprises at least one lacquer layer selected from the group consisting of colored lacquer and colorless lacquer.
7. The laminate as claimed in claim 6, wherein the thickness of the lacquer layer ranges between 1.5 to 7.5 GSM.

8. The laminate as claimed in claim 6, wherein the lacquer is food and pharmaceutical grade lacquer.
9. The laminate as claimed in claim 6, wherein the lacquer is at least one heat sealed lacquer consisting of organic such as corn and inorganic bases along with low molecular weight solvent.
10. The laminate as claimed in claim 6, wherein the lacquer is a heat seal lacquer comprising a combination of vinyl and acrylic resin.
11. The laminate as claimed in claim 1, wherein the adhesive layer is selected from the group consisting of polyurethane, acrylate, isocyanide and combinations thereof.
12. A process for the preparation of a packaging laminate; said process comprising the following steps:

- selecting a base comprising a metallic layer with a thickness in the range of 7 to 40 microns; and
- laminating a paper layer of thickness in the range of 30 to 60 GSM with the base by means of an intermittent adhesive layer to form a laminate.
13. The process as claimed in claim 12, further comprising a method step of
coating the laminate with a heat seal lacquer.

14. The process as claimed in claim 12, wherein the metallic layer is subjected to corona treatment before applying a paper layer on the base.
15. The process as claimed in claim 12, wherein the adhesive is applied through a gravure applicator cylinder.
16. The process as claimed in claim 12, further comprising method steps of curing the laminate, passing it through a heated tunnel with supporting rollers, aging the laminate at 45 to 60°C for about 24 hours and subjecting the laminate to online corona treatment.
17. The process as claimed in claim 12, wherein the lacquer is applied on the metallic layer by means of a three roll applicator.
18. The process as claimed in claim 12, further comprising a method step of imparting anti-counterfeit effect to the laminate by subjecting the operatively outer surface of the laminate to flexographic printing for incorporating unique overt and covert features; said outer surface being a paper layer.
19. The process as claimed in claim 12, wherein the printing is carried out using alcohol-based inks.
20. The process as claimed in claim 12, further comprising a method step of coating the operatively outer surface of the laminate with a primer to impart scuff resistance to the laminate.

21. A container made from the packaging laminate as claimed in any of the
preceding claims.
22, The container as claimed in claim 21, wherein the container is at least
one container selected from the group consisting of pouch, sachet,
packets and bags.