Based on experiences and material characteristics indicated in the barrier property testing for high barrier property materials, this article proposes corresponding operation suggestions for different barrier property testing items and methods, so as to better satisfy the testing demands for high transmission rate specimens with the common barrier property testing instruments. Continue reading

The properties of cigarette packaging materials are the key factors affecting the storage period in relation to the different storing environments. This article analyzes the testing demands of BOPP film (bi-axially oriented polypropylene film), and introduces the tests for several properties of BOPP film, including water vapor transmission rate , flavor protection, coefficient of friction, heat shrinkage and thickness, etc. Continue reading