Coloring process can generally be divided into eight types: anodized aluminum, electroplating, spraying, inner bottle outer spray, outer bottle inner spray, drawing gold and silver, secondary oxidation, injection color. The following is a brief introduction to these eight types.
Anodized aluminum: aluminum exterior, wrapped with a layer of inner plastic.
Electroplating (UV): The effect is brighter than the spray image.
Spray: The color is matte compared to electroplating.
Inner bottle and outer spray: It is sprayed on the outside of the inner bottle. There is an obvious gap between the outer bottle and the outer bottle. The spray area is small when viewed from the side.
Spraying inside the outer bottle: It is spraying on the inner side of the outer bottle. It looks larger from the outside and smaller in the vertical plane, and there is no gap with the inner bottle.
Brushed gold and silver: It is actually a film. If you look carefully, you can find the gaps in the bottle.
Secondary oxidation: Secondary oxidation is performed on the original oxide layer, so that the smooth surface is covered with a matte pattern or the matte surface has a smooth pattern, which is mostly used in the production of logos.
Injection color: Toner is added to the raw material when the product is injection molded. The process is relatively cheap. Bead powder can also be added. Adding too white powder will make the PET transparent color become opaque.
