What is Paint Made of?
Paint is a substance that is made of pigments suspended in either a paste of a liquid usually water or oil to form an emulsion. Paint is primarily used to protect the area that it is covering a purpose that dates back to the Egyptians and Hebrews. Its secondary purpose is to be aesthetically pleasing. Paint has been used for tens of thousands of years. It dates back approximately twenty to twenty five thousand years ago when the prehistoric man would create artistic paintings on the walls of caves. Paint was originally made on natural substances such as charcoal, bloods, or juices from fruits. In the modern era paint is made of a series of pigments, solvents and additives. The colour of the paint comes from the pigment, the solvent is used to make the paint easier to apply, and additives are used for a ride range of things such as ant fungicidal agents and fillers.
How is paint made?
The manufacturing process is a multi-stage process. The first stage is mixing the resin with the premixed pigment. The resin acts as a wetting agent that is used to moisten the pigment. Solvents and additives are also added to the mixture to help form a paste. The second stage is dispersing the pigment. The past mixture is conveyed into a sand mill which is a large cylinder that is used to agitate the small sand and silica that is the paint in order to crush the pigment particles. The grinding process makes the pigments smaller and unilaterally mixes them throughout the mixture. The mixture is then flowed through a series of filters to remove the sand particles. After the filters the paint is processed into the high-speed dispersion tank where it is processed. The pigment is blended into the solvent using mechanical equipment such as batch hoppers which are circular toothed bladed rotating shafts. They mix the paint to a sufficient standard which is pre-determined when the equipment is set up through a series of trial and measure tests.
The third process of making paint is the thinning of the paste. The paste is transferred from the agitation tank to a dispersion tank where the paste is thinned. This process is the refining stage and is the last stage of synthesising of the paint. The process involves transferring the paint into a couple of large kettles where the required solvent is added to create the type of paint that is required.
The final stage of the manufacturing process is the separation of paints into containers. The refined paint is pumped into a separate room which is used for canning. The cans are fist labelled with the specification of the paint. The paint is then pumped into the can before lids are systematically sealed onto the cans. Another machine is then used to attach the paint handles. The cans are then separated into pairs or sets for the boxing process. Finally the cans are sent to companies who then deliver them to buyers.