What is coating in pharmaceuticals?

What is coating in pharmaceuticals?

Pharmaceutical coating is a technique in which an outer dry film of the coating composition is applied on the desired dosage form (mainly tablet and granules) to attain specific advantages (taste masking, environmental protection).

What is tablet coating equipment?

A tablet coating machine is an equipment that coats the external surface of a tablet using a thin film of coating material. The regulation of the air also provides controlled drying and tablet extraction rates. It also allows for an evenly spread medium on the tablets giving the tablets a smooth solid surface.

What are the equipments used in coating process?

Depending on the working principle, you may classify all the existing tablet coating machines as: Standard Coating Pan. Perforated Coating Pan. Fluidized Bed Coater.

What is the purpose of tablet coating?

The objectives of tablet coating are as follows: To mask the disagreeable odor, color or taste of the tablet. To offer a physical and/or chemical protection to the drug. To control and sustain the release of the drug from the dosage form.

Why coating is required?

Industrial coatings are the best way to keep a variety of surfaces safe. They prevent corrosion. Rust or other corrosive debris is another issue that often pops up in industrial applications. Often the materials that are hard enough to actually build machinery from are also very likely to corrode over time.

Why is coating important?

Why coating is done?

The purpose of applying the coating may be decorative, functional, or both. Functional coatings may be applied to change the surface properties of the substrate, such as adhesion, wettability, corrosion resistance, or wear resistance.

What is the role of coating?

A coating is a covering that is applied to the surface of an object, usually referred to as the substrate. Functional coatings may be applied to change the surface properties of the substrate, such as adhesion, wettability, corrosion resistance, or wear resistance.

What is coating system?

Coating systems are deployed within nuclear plant to improve wear-resistance of moving parts, such as valves, pump internals, and other moving mechanisms.

What is the purpose of coating?

Coatings help protect the object by extending its life with application. Some coatings are specifically engineered for certain objects or conditions. Others can be used on a variety of surfaces or conditions. Coatings are also used for decorative reasons.

What is coating and its types?

Coatings are specified as organic or inorganic according to the nature of their binder. Organic coatings are those that have an organic binder. Inorganic coatings are those that have an inorganic binder such as a silicate.

What kind of coating is used on tablets?

This person is not on ResearchGate, or hasn’t claimed this research yet. Tablet coating is a common pharmaceutical technique of applying a thin polymer-based film to a tablet or a granule containing active pharmaceutical ingredients (APIs).

How does fluidization take place in a tablet coating machine?

Fluidization of the pellets is achieved by a column of air flowing upwards from the bottom centre of the cylinder. The tablets in the centre move upwards in the air flow and fall outwards and downwards to the chamber wall, re-entering the air stream from the bottom part of the column.

How does a tablet coating machine work in a bed?

Tablet coating machines work on the simple principle of applying the coating ingredients in the form of a solution to a group of tablets in a bed that may move horizontally or vertically. A concurrent flow of heated air helps to evaporate the solvent. The coating is equally distributed to the tablets through the movement of the bed.

What makes a Glatt coater a good coating machine?

Glatt coater – this design uses fully perforated drums – a feature which combines maximum spray rates and extremely short process times. The horizontal process air flow minimises turbulence in the nozzle area and therefore also contributes to a perfect coating result.