PROCESS TO MAKE EMULSIONS

Emulsion Liquid Paints are Made in

This machine is basically used for water based paints. In this machine the tanks are usually over hung. There are two nos: shafts. One is the slow speed shaft and the other is the high speed shaft.

SLOW SPEED SHAFT
The slow speed shaft has a semi anchor shape. It is fitted with scrapper blades to clean the shell walls. The function of the slow speed shaft is
1) Scrapping the powder off the shell walls with the help of PTFE scrapers
2) Bringing in the material towards the High Speed blade
3) Acting as the blender after addition of emulsion.

HIGH SPEED SHAFT
The high speed shaft is fitted with an agitator disc for dispersion.

THE PROCESS INCLUDES
The liquids are added first and as the powders are added gradually, both shaft are made operational. The high speed shaft does the shearing\dispersion while the slow speed shaft helps bring the material toward the agitation disc to enable dispersion.

Once the dispersion is complete and homogeneous the high speed shaft is switched off. The emulsion is added there after, and it is allowed to run for some more time till the emulsion is completely blended with the material.