Static charging methods and graphic material properties for low scrap in-mold decoration

The use of static charging techniques has been investigated to understand which methods produce the most highly repeatable results for in-mold decoration. The techniques studied were the direct and remote charging methods. In addition to charging methods, the study evaluated material properties, gate location and environmental conditions that contribute to the success and repeatability of in-mold decoration. The optimal method, environmental conditions and material properties were found that produce low scrap results. Conclusions were made regarding optimal charging methods and graphic label constructions.