Film Coating Defects Quiz

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Questions and Answers

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?

<p>Charging the pan with tablets (B)</p> Signup and view all the answers

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

<p>When the tablets begin to tumble (A)</p> Signup and view all the answers

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

<p>At interval of 5 - 10 min (D)</p> Signup and view all the answers

What is a potential solution to film cracking issues?

<p>Adjusting plasticizer type or concentration (A)</p> Signup and view all the answers

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

<p>Inadequate spreading of the coating solution (A)</p> Signup and view all the answers

How can bridging of logos on a coating be decreased?

<p>Increasing the plasticizer content (A)</p> Signup and view all the answers

What is a common cause of blistering in coatings?

<p>Too slow evaporation of solvent (B)</p> Signup and view all the answers

How is sugar coating different from film coating?

<p>Sugar coating is quicker than film coating (B)</p> Signup and view all the answers

What change can decrease color variation issues in coatings?

<p>Improving mixing and spray pattern uniformity (A)</p> Signup and view all the answers

Which process variables are crucial in the film coating process?

<p>All of the above (D)</p> Signup and view all the answers

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

<p>Low pressure air atomized and high pressure airless (A)</p> Signup and view all the answers

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

<p>Picking and twining (D)</p> Signup and view all the answers

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

<p>Cracking (C)</p> Signup and view all the answers

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

<p>Distinctness of logos and break lines (C)</p> Signup and view all the answers

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

<p>To provide an even coverage of film and color (B)</p> Signup and view all the answers

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

<p>To prevent moisture penetration (B)</p> Signup and view all the answers

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

<p>Shellac (D)</p> Signup and view all the answers

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

<p>Increased disintegration and dissolution times on storage (D)</p> Signup and view all the answers

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

<p>Manually using a ladle (A)</p> Signup and view all the answers

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

<p>Zein and cellulose acetate phthalate (B)</p> Signup and view all the answers

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

<p>Adjusting the application of subcoats and coat in spray processes (B)</p> Signup and view all the answers

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