What is fluidised bed coating?

What is fluidised bed coating?

In the fluidized bed application method, the object is pre-heated to a temperature above the melting point of the powder. The object is then submerged in or in the cloud just above the fluidized bed of powder. The powder melts and forms a coating onto the hot surface.

What is principle of fluidized bed coater?

principle involved in fluidized bed processor (FBP) and the latest equipment available in market working. on the principle of FBP. The main principle involved in the FBP is the air suspension in which the material. to be coated is suspended in the coating material with the help of air stream.

What is top spray granulation?

Top spray granulation is most commonly used to improve the flow characteristics of powder. Other advantages include increasing particle size, density, and surface area as well as reducing dust emissions.

What is fluidized bed processor?

Fluid Bed Processor is a very good technology to make granules from powder using top spray method. The technology is most suited as the same equipment can be used for top spray granulation, bottom spray coating & drying all 03 parameters in the same equipment thereby reducing the nos of equipment used for a process.

What is Wurster coating?

Wurster coating, synonymous with fluid bed microencapsulation, is the encapsulation of discrete particles in a fluidized bed using differential air flow to create a cyclic movement of material.

What is fluid bed granulation?

The fluid bed granulation process (also known as agglomeration) involves suspending particles in an air stream and spraying a liquid from the top of the system down onto the fluidized bed (top-down spray). Particles in the path of the spray get slightly wet and become sticky.

What is Wurster process?

The Wurster process is recognized as the technology for precision application of a film coating onto particulate materials such as powders, crystals, or granules, and other solid ingredients with diameters ranging from 30 µm to several centimeters.

What is pellet coating?

Pellet (or bead) technology allows a variety of different drug delivery profiles to be achieved by coating a ‘core’ of drug and excipient with various polymers. The drug cores are generally spheroidal in shape and have a diameter in the range of 300 to 1,700 µm.

What are the applications of fluidized bed dryer?

The Fluidized Bed Dryer is used in many broad applications and industries, such as food, feed, fertilizers, pharmaceutical and plastics industries. NARA’S Continuous Type Fluidized Bed Dryer (C-FBD): The hot air is blown from the gas dispersion plate (a perforated plate type) equipped at the bottom of the dryer.