30ml Essence dropper bottle with a round shoulder

The parts involved are an aluminum silver colored component and a yellow bottle body. The manufacturing process for the bottle body is as follows:

First, the transparent yellow paint is applied to the bottle body using spray coating. This will yield a bright matte yellow finish that allows light to pass through.

Next, one-color silkscreen printing is performed using black ink. Silkscreen printing is a printing technique where a specialized screen or mesh is used to transfer ink onto a surface, in this case the yellow bottle body.

For the one-color silkscreen printing, an 80% opacity black ink will be used. This means the yellow color of the bottle body will still show through the black ink printing, but the black will dominate 80% of the visual effect.

The combination of the bright matte transparent yellow basecoat with the overlaid one-color 80% black silkscreen printing is meant to produce an overall effect that is aesthetically pleasing yet functional, with the black printing adding visibility and information while allowing the vibrant yellow base color to still shine through.

After paint application and silkscreen printing are complete, the aluminum silver part will be assembled with the decorated bottle body to create the final product.