in most applications for labels or packaging, a subtle shim or seam line can be seen on close inspection. this line, which typically appears within holographic repeat patterns, is caused by the shim, or recombination joint, between two pieces of metal on a holographic embossing cmore...
Metalized polyester film, also called metalized PET film, met PET film, or aluminized PET film, is a plastic film that has been treated so that a layer of aluminum particles are put on one side of the film . The amount of aluminum applied allows for various levels of tinting.more...