In the sixth and final part of our blog series covering plastic decoration capabilities, insert mold decorating will be discussed.
Insert mold decorating, known as IMD, is a technology that imbeds a graphic overlay into an injection molded plastic piece. The IMD machine first picks up the graphic overlay with a robotic arm and then loads it into the mold. Molten resin is then injected into the mold which bonds the overlay to the part. From there, the robotic arm picks up the complete part and sets it onto the conveyer belt to be sent to the operator.
IMD is a high volume application using automated processes. In terms of functionality, this technology is utilized frequently for the aerospace and automotive industries because the process ensures strong durability and that the ink won’t wear off of the part. There are material considerations for bonding to ensure that different materials will adhere correctly. For example, if you are bonding two different materials such as nylon and polycarbonate that don’t want to stick together, it can be challenging to figure out how to bond them together. This can be done on first or second surfaces, meaning placing the graphic overlay either on top or below the plastic, and is a design driven decision.
In addition, IMD parts are bulletproof, which is an important feature for many ruggedized industries. Aesthetically, IMD can pull off multiple effects including wood grain, carbon fiber, and high gloss piano black, which are frequently used in the automotive industry. IMD can also incorporate backlighting technologies. Backlighting can be molded in and bonded into the part versus the use of adhesives.
The development phase for IMD can be long, but prototyping can be very helpful for the design as a production tool. IMD is an advanced process through which many GMN customers have found long lasting results.
To learn more about the plastic decorative options offered at GMN, please visit the rest of our blog series by clicking here.