Coloring Techniques for Cosmetic Packaging Bottles

Electroplating aluminum: The surface is made of aluminum and coated with a layer of plastic on the inside.

Electroplating (UV): The effect is bright compared to spraying.

Spraying: The color is matte compared to electroplating.

  • Sandblasting: A layer of frosted texture.

  • Inner bottle spraying: The spray is done on the outside of the inner bottle, leaving an obvious gap between the appearance and the outer bottle. The cosmetic spray bottle area is small when viewed from the side.

  • Outer bottle spraying: The spray is done on the inside of the outer bottle, making the area appear larger when viewed from the outside. The area of cosmetic glass spray bottle is smaller when viewed vertically, and there is no gap between the inner and outer bottles.

Drawing gold or silver: It is actually a film and there are visible seams on the bottle.

Secondary oxidation: This is achieved by oxidizing the original oxide layer a second time, resulting in a pattern with a shiny surface and a matte surface, or a pattern with a matte surface that appears shiny. It is mainly used for the production of logos.

Injection coloring: Color powder is added to the raw material during product injection. This process is relatively inexpensive. It is also possible to add pearl powder or talcum powder to make PET transparent colors opaque (additional color powder can be added for color adjustment). The production of water ripples is related to the amount of pearl powder added.