Foaming and dyeing integrated production line for polymer material product, and method thereof

A foaming and dyeing integrated production line for a polymer material product, comprising a foaming and dyeing kettle for foaming and/or dyeing, a pressure control module for controlling operation pressure of the foaming and dyeing kettle, a dye separation module for separating CO2 from dye remaining after dyeing, a fluid liquefaction and storage module for liquefying and storing CO2, a fluid pressurization delivery module for pressurizing CO2, a fluid heating module for heating CO2, and a dyeing circulation module for circularly delivering dye in cooperation with CO2 to the foaming and dyeing kettle for dyeing;

• the pressure control module is connected to a first fluid outlet of the foaming and dyeing kettle, the dye separation module is connected between the pressure control module and the fluid liquefaction and storage module, the fluid pressurization delivery module is connected between the fluid liquefaction and storage module and the fluid heating module, the fluid heating module is connected to both a fluid inlet of the foaming and dyeing kettle and the dyeing circulation module, and the dyeing circulation module is connected to both the fluid inlet of the foaming and dyeing kettle and a second fluid outlet of the foaming and dyeing kettle.