The vinyl process is a manufacturing process used to produce soft plastic toys or dolls and other products.
The vinyl process mainly uses polyvinyl chloride (PVC) paste resin as raw material. This PVC paste resin is a high molecular polymer that is semi-fluid in its unprocessed state and has good fluidity and plasticity, which enables it to be formed in a specific mold.
The PVC paste resin is injected into a pre-designed mold. Then, the mold is placed in a high-temperature enamel furnace for heating. The general heating temperature is around 200-300 degrees Celsius. During the heating process, the PVC paste resin undergoes a cross-linking reaction due to the heat, gradually solidifies from a semi-fluid state, and is formed into a product with the same shape as the inner cavity of the mold. This process is similar to baking a cake, where the batter is baked in the mold to become a cake of a specific shape.