Tablet Coating

Tablet coating is used to mask or bad odor of tablet or masking the color or sustained release or for enteric release, there are different types of tablet coating are used such as film coating, sugar coating, enteric coating, specialized coating. Film coating is a deposition, thin polymer film around film coating tablet core. The coating material can have a physical deposition on tablet core or they can create a continuous film.

Generally, conventional pan coater instruments are used for film coating, the full drive unit is enclosed in a strong cabinet, the thermostat control is provided with a flexible SS pipe heater for rapid drying of hot air blowers. Heater blower is embedded with the motor, so unless the blower turns on, the heater does not start. In it, perforated pan coating is the most common method used. In this process, many tablets are sprayed with continuous coating solution supported by the pan and hot air to dry the tablets. This is a typically long process and depends on the type of equipment used, the parameters of the process and even the skills of the operator.

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