Multilayer film and method of preparation thereof
AssigneeCosmo First Limited
InventorsAnil GAIKWAD, Nagesh KOLHE
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Abstract
The present invention disclosure provides a multiplayer film comprising a base layer, a print receptive and ink absorptive layer and its preparation method thereof. The present disclosure provides a top coating layer comprises of an acrylic-polyurethane dispersion/emulsion, resin intended to enhance the surface properties and ink drying. Furthermore, the present disclosure relates to use of multilayer film in the small and large format graphic films, advertising media, promotional media, vehicle and product wrap and other commercial applications. The present invention disclosure provides an efficient, cost-effective and eco-friendly process.
Claims15
A multilayer film comprising:
- a treated base layer having a thickness in the range of 60-120 microns;
- and
- a print receptive layer having GSM in the range of 15-20;
- and
- a top coating layer having a GSM in the range of 5-10;
- wherein the print receptive layer comprises 65 to 90 wt % of an ethylene-vinyl acetate copolymer resin and 10-35 wt % of an ink absorptive resin;
- wherein the ink absorptive resin is an olefin-based copolymer;
- and
- wherein the top coating layer comprises a water-based acrylic-polyurethane emulsion/dispersion.
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A method of preparation of a multilayer film comprising the steps of:
- treating a base layer to obtain a treated base layer having a thickness in the range of 60-120 microns;
- extrusion coating a print receptive layer having GSM in the range of 15-20 on the treated base layer to obtain an intermediate film;
- solution coating a top coating layer having a GSM in the range of 5-10 on the intermediate layer to obtain the multilayer film;
- wherein the print receptive layer comprises 65-90 wt % of an ethylene-vinyl acetate copolymer resin and 10-35 wt % of an ink absorptive resin;
- wherein the ink absorptive resin is an olefin-based copolymer;
- and
- wherein the top coating layer comprises of water-based acrylic-polyurethane emulsion/dispersion.
Dependencies are inferred from the claim text.