COATED PACKAGING MATERIAL HAVING ENHANCED WATER VAPOR TRANSMISSION RATE
A coated substrate for packaging material that reduces material to the landfill, is compliant for recycling and compostability, and/or enhances Water Vapor Transmission Rate (WVTR). The coated substrate includes a substrate, a barrier coating and an ink layer disposed on the barrier coating. The barrier coating includes a polymeric matrix material and nanoparticles. The barrier coating provides a water vapor transmission rate through the coated substrate lower than the water vapor transmission rate of a substrate having no barrier coating.
1 . A coated substrate for packaging material comprising:
a substrate;
a barrier coating comprising:
a polymeric matrix material; and
nanoparticles;
an ink layer disposed on the barrier coating;
wherein the barrier coating provides a water vapor transmission rate through the coated substrate lower than the water vapor transmission rate of a substrate having no barrier coating.
2 . The coated substrate of claim 1 , wherein the coated substrate is devoid of polyvinylidene chloride.
3 . The coated substrate of claim 1 , wherein the polymeric matrix material is a high molecular weight polymer.
4 . The coated substrate of claim 1 , wherein the polymeric matrix material comprises polyurethane.
5 . The coated substrate of claim 1 , wherein the nanoparticles include nanocellulose.
6 . The coated substrate of claim 1 , wherein the water vapor transmission rate through the coated substrate is reduced by at least 5% compared to a substrate having no barrier coating.
7 . A package comprising:
a package body including a substrate, the substrate having a coating comprising:
a matrix material including a polymer; and
nanoparticles;
wherein the barrier coating provides a water vapor transmission rate through the coated substrate lower than the water vapor transmission rate of a substrate having no barrier coating.
8 . The package of claim 7 , wherein the coated substrate is devoid of polyvinylidene chloride.
9 . The package of claim 7 , wherein the polymeric matrix material is a high molecular weight polymer.
10 . The package of claim 7 , wherein the polymeric matrix material comprises polyurethane.
11 . The package of claim 7 , wherein the nanoparticles include nanocellulose.
12 . The package of claim 7 , wherein the water vapor transmission rate through the coated substrate is reduced by at least 5% compared to a substrate having no barrier coating.
13 . A method of forming a coated substrate for packaging material, the method comprising:
providing a substrate;
applying a barrier coating to the substrate, the barrier coating comprising:
a polymeric matrix material including a polymer; and
nanoparticles;
applying an ink layer to the barrier coating;
wherein the barrier coating provides a water vapor transmission rate through the coated substrate lower than the water vapor transmission rate of a substrate having no barrier coating.
14 . The method of claim 13 , wherein the coated substrate is devoid of polyvinylidene chloride.
15 . The method of claim 13 , wherein the polymeric matrix material is a high molecular weight polymer.
16 . The method of claim 13 , wherein the polymeric matrix material comprises polyurethane.
17 . The method of claim 13 , wherein the nanoparticles include nanocellulose.
18 . The method of claim 13 , wherein the water vapor transmission rate through the coated substrate is reduced by at least 5% compared to a substrate having no barrier coating.