How many ways to molding two color parts?

In traditional way, to make a two color part, it made by 2 steps, 1^st produce 1 part on 1^st mould, then put the 1^st part on 2^nd mould to molding the 2^nd color. We call it overmolding.

With development of technology, now we realize two color molding on one machine with one mould.

There are several main mould structures to make two color mould:

1. Mould work on Rotary table two color injection machine.

This way can be used to make most 2 color parts which 2^nd color cover on 1^st color, like 2 color bowl, 2 color plate, 2 color container and lid…

2. Mould work with Rotary shaft two components injection machine.

Rotary shaft two components injection is most apply on the 2 color part which 2^nd color wrap over the 1^st color, like 2K toothbrush, 2K tool handles… these parts are all made by rotary shaft mould.

3. Mould work with in-mould core pulling structure.

In-mould core pulling structure normally used to molding the 2 color parts which two color connect in a line, like 2 color fliptop cap, the base part and top part with two different color, and two color connect on the hinge area only. It can use in-mould core pulling structure to make it.

What’s the most suitable molding way to your product? Welcome to send us inquiry, we will analyse and give you our professional suggestion.