Coloring process for cosmetic packing materials
Anodized aluminum: aluminum exterior, wrapped with a layer of plastic on the inner layer.
Electroplating (UV): Compared with the spray image, the effect is brighter.
Spraying: Compared with electroplating, the color is dull.
Outer spraying of the inner bottle: spraying on the outside of the inner bottle, there is a clear gap between the outer bottle and the outer bottle, and the spraying area is small when viewed from the side
Inner spraying on the outer bottle: It is sprayed on the inside of the outer bottle. It looks larger from the outside and smaller from the vertical plane, and there is no gap between the inner bottle and the inner bottle.
Brushed gold and silver: It is actually a film, and you can find the gaps in the bottle body by carefully observing it.
Secondary oxidation: secondary oxidation is performed on the original oxide layer to achieve a pattern with a dull surface covering the glossy surface or a pattern with a glossy surface appearing on the dull surface, which is mostly used for logo production.
Injection color: Toner is added to the raw material when the product is injected. The process is relatively cheap. Pearl powder can also be added. Adding cornstarch will make the transparent color of PET become opaque.