Water Vapor Permeability Testing is mainly affect factor for cosmetic packaging. Through WVTR testing, technical indexes for control and adjustment of packaging materials can be achieved so as to meet the varied application needs. Take PERME W3/330 Water Vapor Transmission Rate Testing System as an example. Clamp the specimen in between the testing chamber, a flow of constant stable nitrogen flows in one side of the film and dry nitrogen flows in the other side. Owing to the humidity [...]

Mositure Barrier of IV bag is the most important factor affecting the quality. Owing to the low barrier property of the content contact package, a barrier package is needed for prevention of moisture & oxygen permeation. Besides, nitrogen is applied to take place of the air between the inner package and barrier package. Therefore, oxygen transmission as well as nitrogen and moisture transmission should be tested. Labthink VAC-V series of differential pressure gas permeation testers can accomplish [...]

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 [...]

Water Vapor Permeation Testing of Solar Cell Backsheet Film plays the most important role on the quality control of solar cells. The backsheet can protect the photovoltaic components, like solar panel. The main quality of the backsheet is determined by its water vapor barrier property. If the backsheet can not block the water vapor in the air, the vapor will enter and break the bonding force between EVA layer and the panel. When the water vapor contact with solar panel directly, the solar panel will be oxidated and lose its function of generating current.