The present invention discloses a device for detecting the filter pressure value of a colorant, comprising a drive motor, a twin-screw extruder, a melt pump, a pre-filter pressure sensor, and a filter screen; The twin-screw extruder comprises a first screw and a second screw, with the drive motor rotating both screws. The melt pump’s inlet connects to the extruder’s outlet, while its outlet connects to the filter screen. The pre-filter pressure sensor is positioned between the melt pump and the filter screen. The twin-screw extruder features a feed inlet connected to a dispersion device, which includes a material charging port. The invention further provides a method for detecting the filter pressure value of a colorant using the aforementioned detection equipment. This invention not only enables pre-dispersion of materials entering the twin-screw extruder but also directly measures the filter pressure value of the color powder. This eliminates the process of preparing color masterbatch from color powder, avoids interference with the filter value during masterbatch production, shortens the process flow, and enhances the accuracy of filter pressure value testing.
Country Code: CN
Application Number: CN202310334955.X
