The pharmaceuticals are easily deliquesced after absorbing moisture, for which the packaging materials should be of high moisture barrier property. Aluminum plastic composite film is widely used in pharmaceutical packaging which can help extend the shelf life and guarantee the quality of the pharmaceuticals. However, the aluminum layer may be folded during package forming, product filling, heat sealing and transportation processes and as a result the barrier property (both oxygen barrier property and water vapor [...]

WVTR is the abbreviation for water vapor transmission rate, which is defined as the constant rate at which water vapor permeates through a specimen film at specified conditions of temperature and relative humidity.

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 [...]

The research on encapsulation material of FOLED (flexible organic light emitting diodes) has been a focus of FOLED research both at home and aboard. How to measure water vapor transmission rate , oxygen and other active gases through FOLED  material is one of the important subjects for FOLED encapsulation.  Labthink Instruments Co., Ltd. , as the world renowned testing instrument and testing service provider, introduces the professional FOLED encapsulation material water vapor and gas transmission testing [...]