
Film insert molding: Creating complex components in a single step
A type of in-mold decoration, FIM eliminates the need for separate steps, such as coating or painting, that would otherwise be required to decorate or functionalize plastic components, even where these items are complex in shape. This offers manufacturers extensive flexibility in design and manufacturing - as well as considerable savings in costs, time and machine investment.
The decorated film used in FIM can create a huge variety of visual effects - be they multicolored, or metallic. The process also allows for integrated symbols, transmitted light design, surface impression (glossy, textured, or matte) and high gloss, which can be set selectively. Few other methods allow the decoration of parts to be changed as quickly without interrupting production, i.e. decoration can be changed by simply inserting different printed films from shot to shot. Additional properties, such as media and UV resistance, scratch and abrasion resistance, or electrical conductivity can be achieved through the use of special composite or coated films. Key elements of the FIM process include printing, forming, trimming, and back injection. Each aspect has its own unique technological considerations.*
*UV curing is applicable to hard-coated films.