Production of Superior Quality Writing Chalk Sticks
Implementing Organization
Central Salt & Marine Chemicals Research Institute (CSMCRI)
About
It is prepared by mixing of Calcium Carbonate (CaCO3), other different additives and binder with water in the mixing machine. This wet material is converted in to cartridge (tablet)which is then utilized for extrusion through specially designed chalk extruded machine .The wet long sticks are cut in the required length pieces followed by drying. Finally grinding operation is performed manually for giving final finishing.
Central Salt & Marine Chemicals Research Institute (CSMCRI)
Acces sibility Controls