This double color cosmetic cap is not only two colors, but also the caps have to be demoulded out from mold by unscrew device instead of conventional forced ejection. The mold structure is more complicate than other double color mold and mold dimension is bigger. Moreover, the steel of unscrew device shall be high-end quality with heat treatment in order to avoid wearing and tearing in short time of movement.

The cap of salt shaker is combined with lid and cover. There are two holes on lid for fixture of cover, which lid mold shall be designed with lifters. The neck of lid is necessary to design sliders before being ejected out from cavities. This design is to protect the thread of lid and avoid damage by force ejecting. Briefly, the lid looks simple and common plastic part, the mold design is more complicate.