Core77

Did you ever wonder how Hewlett-Packard gets those line-graphics molded into their laptop cases? Production-method geeks rejoice, we've found out:

The execution of each intricate HP Imprint involves special molding equipment and a film roll that contains the entire graphic and color finishes of the final cosmetic part. The film is compressed into the tool when the part is injection molded. The ink contained on the film transfers onto the injection-molded part at the time of molding, creating a finished cosmetic part that does not need to be painted as a secondary operation.

Once that part is taken out of the tool, it is put on a conveyor belt that passes through an oven for approximately 10 seconds. This gives the final part a hard coat surface since the ink is UV based and the heat process cures the ink which gives it its hardness. The durability of the part is greater than the durability of traditionally painted parts.

via manila bulletin