Use of a high performance water vapor barrier coating for paper under tropical conditions

摘要

This invention provides the use of a water vapor barrier as coating for paper or paperboard as substrate for lowering the water vapor transmission rate (WVTR) of the substrate under tropical conditions, for example 37.8°C and 90% relative humidity, wherein the barrier improvement factor (BIF), which is the ratio of WVTR uncoated substrate/WVTR coated substrate, is at least 80.