Abstract: as pets are getting more and more popular, the quality control requirements for pet food are much stricter than before. Besides quality safety of pet food itself, the barrier property evaluation of pet food packaging has drawn the attention of pet food manufacturers. Keywords: pet food packaging, barrier property, oxygen transmission rate, OTR, water vapor transmission rate, WVTR, mechanical property, differential pressure permeability tester, water vapor permeability tester, tensile tester, leak tester, seal strength, [...]

Moisture Barrier Testing of BOPP Film High moisture barrier performance is a must for flexible package so as to avoid deterioration caused by moisture. At present, this factor is not fully noticed by the flexible packaging manufacturers. Labthink PERME W3/030 is developed according to ASTM E96, ISO 2528 and other standards to test moisture transmission rate for materials. The lower WVTR the better. But, higher barrier property means more costs. Therefore, the common data is less than 10g/m2.day or 5g/m2.day. BOPP [...]