Which is the oldest coating process widely used in pharmaceutical industry?
The process of sugar coating, which has its origins in the confectionery industry is perhaps one of the oldest pharmaceutical processes still in existence. The process involves the deposition of aqueous sugar solutions onto the surface of the core tablet.
What is tablet coating in pharmaceutical industry?
Tablet coating is the process where coating material is applied to the surface of the tablet to achieve the desired properties of dosage form over the uncoated variety. Various classes of pharmaceutical coating materials used in tablet coating depending on the phase of coating are reached.
What is the principle of tablet coating?
Coating process: – The basic principle of tablet coating is simple. Tablet coating is an application of coating composition to a moving bed of tablets with the concurrent use of heated air to facilitate evaporation of the solvent.
What are the different methods used for tablets coating?
Among three types of tablet-coating processes (sugar coating, film coating, and press coating), film coating is the most widely used approach to solve various issues encountered during manufacturing, transport, storage, and clinical use of drug products.
What are four types of pharmaceutical tablet coatings?
Types and Functionality of Tablet Coating
- Sugar Coated Tablets.
- Film Coated Tablets.
- Gelatin Coated Tablets.
- Enteric Coated Tablets.
- Compression Coating Tablets.
- Other Types.
How many types of coating pans are there?
There are three types of conventional coating pans. Besides conventional coating pan, there are perforated coating pans.
Why is coating important?
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.
What is compression coating?
1. COMPRESSION COATING TABLET TECHNIQUE By Prashik M. Compressioncoatedtablet It is a system in which the entire surface of an inner core is completely surrounded by the coat. These coats prevent drug release from the core until the polymeric or drug coat is entirely eroded, dissolved or removed.
What is tablet coating?
Tablet coating is the process where coating material is applied to the surface of the tablet to achieve the desired properties of dosage form over the uncoated variety. The advantages of coating are listed below. Improving taste, odor, and color of the drug
Should tablets be inspected and tested after coating?
After coating, tablets should be inspected and tested. According to British Pharmacopeia, 2009, when a tablet is presented as coated formulations, where justified and authorized, it may be necessary to remove the coating before performing a test described in the monograph.
What is the effect of subcoating on tablet cores?
The amount of sealing coat material depends on tablet porosity and batch size; hence, optimizing the quantity of sealing coating applied is very important to ensure tablet cores are sealed effectively. Subcoating is performed to round the tablets edges. In this process, there is a significant increase in tablet weight.
What are the latest trends in pharmaceutical coating technologies?
Recent trends in pharmaceutical technologies are the development of coating methods which overcomes the various disadvantages associated with solvent based coatings. In these latest technologies coating materials are directly coated onto the surface of solid dosage forms without using any solvent.