MEASURING MIX COMPONENTS ONLINE

The mixing of granular plastics is a process of considerable importanc e to the manufacturer and processor. The manufacturer would like to gu arantee as uniform a quality as possible of a specific plastics grade, the processor wishes to add various additives as evenly as possible t o a basic product. Control of the desired homogeneity by conventional sampling and sample evaluation is time-consuming and expensive. A dire ct, fast and inexpensive method is introduced, by means of which the c oncentration of different coloured mix components can be recorded and evaluated on-line.