Thermal Shrinkage Test of Pharmaceutical
Packaging Materials
Heat shrinkage test is mainly used to evaluate the shrinkage performance of
pharmaceutical packaging materials when exposed to heat. Film is the most used
packaging material, with its non-toxic, light weight, beautiful packaging and low cost,
it permeates in all aspects of industrial and agricultural products and daily life
products. Polypropylene film (PP) is the most widely used, and it is an important
flexible packaging material that can be used in the packaging of pharmaceuticals.
Compared with other plastics, PP film has low price, low specific gravity, excellent
mechanical properties, good abrasion resistance and chemical stability, and is easy to
process. Plastic films used for flexible packaging of commodities must meet various
requirements of packaging materials, such as good stability, safety, aesthetics,
economy, etc. Therefore, in actual production, various performance tests must be
conducted on plastic films, such as film tensile strength testing, barrier testing, heat
sealing performance testing, friction coefficient testing, film aesthetics, etc. The heat
shrinkage rate of the film is directly related to the aesthetics of the film. In the
packaging process, the film must be flat and tightly fitted to the surface of the goods
without wrinkles. CD Formulation can provide customers with heat shrinkage rate
testing of plastic films to ensure the shape and dimensional accuracy of the products.
