Barrier technology - Preparation procedures - Application methods
4 important questions on Barrier technology - Preparation procedures - Application methods
Which 3 application methods to form a film are there?
- Mechanical method
- Dip casting
- Spraying
Mention some mechanical methods to form an isolated film
- Make a well-defined layer of a solution or melt on a smooth surface, by a casting knife that may have a solution reservoir. The knife forms a layer of solution on the surface of the product. By subsequent drying or cooling, a film is formed.
- With the help of brushes
- Letting the product pass a falling film, which then spreads around the product
What is a big advantage of spray drying?
- Higher grades + faster learning
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Is a solution or melt used for spraying as mechanism to coat?
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