Compounding: Quick-Color-Change Lab Twin
Throughout the exhibit, KraussMaffei ran nine different liquid colors, changing at the push of a button, to demonstrate time- and process-saving technology.
KraussMaffei demonstrated the quick-color-change capabilities of its ZE 28 BluePower laboratory twin-screw compounding extruder at K 2019, running liquid color.
Use of liquid color is a growing among masterbatch compounders because it gives them greater flexibility to respond to market requirements, says KraussMaffei. The machine builder explains that because liquid colors are metered directly in the extruder, there is no need for the intermediate step of manufacturing a monoconcentrate, making the process especially economical and suitable even for very small volumes and special colors. Even converting from dark to light is possible without any problem thanks to the self-cleaning effect of the twin-screw extruder, says KraussMaffei. Throughout the show, KraussMaffei ran nine different colors with a talc-filled PP masterbatch, making changes at the touch of a button.
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