Film Coating Defects Quiz

Play an AI-generated podcast conversation about this lesson

What type of drum is typically used in the film coating process with Perforated Pan Systems?

Vertical drum

Non-perforated drum

Double drum

Perforated drum (correct)

Which system allows the drying air to be directed from inside the drum through the tablet bed?

Hi-coater

Accela Cota

Driacoater (correct)

Pan coating

How is the coating system applied to the tablets in Pan coating process?

By pouring directly on tablets from above

By spraying nozzles only

Through spraying nozzles or distribution pipes (correct)

Through a slot at the bottom of the pan

What is the first step in the Pan coating process?

Charging the pan with tablets Signup and view all the answers

When should half of the coating solution be applied in Pan coating?

When the tablets begin to tumble Signup and view all the answers

In the Pan coating process, when should the rest of the solution be added?

At interval of 5 - 10 min Signup and view all the answers

What is a potential solution to film cracking issues?

Adjusting plasticizer type or concentration Signup and view all the answers

What can result in an 'orange peel' effect on a coating?

Inadequate spreading of the coating solution Signup and view all the answers

How can bridging of logos on a coating be decreased?

Increasing the plasticizer content Signup and view all the answers

What is a common cause of blistering in coatings?

Too slow evaporation of solvent Signup and view all the answers

How is sugar coating different from film coating?

Sugar coating is quicker than film coating Signup and view all the answers

What change can decrease color variation issues in coatings?

Improving mixing and spray pattern uniformity Signup and view all the answers

Which process variables are crucial in the film coating process?

All of the above Signup and view all the answers

What are the two basic systems used to apply a finely divided spray onto tablets?

Low pressure air atomized and high pressure airless Signup and view all the answers

Which coating fault is caused by overwetting and inadequate drying conditions?

Picking and twining Signup and view all the answers

What may occur if the internal stresses exceed the tensile strength of the film in film-coated tablets?

Cracking Signup and view all the answers

Which characteristic should film-coated tablets ideally display according to the text?

Distinctness of logos and break lines Signup and view all the answers

What is the main purpose of the film coating process as mentioned in the text?

To provide an even coverage of film and color Signup and view all the answers

What is the purpose of applying a seal coat to the tablet core in sugar coating?

To prevent moisture penetration Signup and view all the answers

Which material is a purified resinous secretion of the insect Laccifer lacca used in sugar coating?

Shellac Signup and view all the answers

What is one of the stability problems associated with Shellac used in sugar coating?

Increased disintegration and dissolution times on storage Signup and view all the answers

Which technique can be used to apply the coating syrup in sugar coating?

Manually using a ladle Signup and view all the answers

What are some materials that can be used for sealing in sugar-coating techniques?

Zein and cellulose acetate phthalate Signup and view all the answers

What is a possible method for preventing localized overwetting in sugar coating?

Adjusting the application of subcoats and coat in spray processes Signup and view all the answers