Process principles
A very even application of the coating material is an important
feature of the coating process. Coatings must be dense and without
mechanical damage and cracks. Lipid/Hot melt coating is a very effective
process for the application of waxes and molten materials as protective
films for manipulating the particle properties.
Glatt offers Fluid Bed Coating
(Top Spray Coating, Bottom Spray Coating, Rotor Coating) as a technical solution
for coating different particles and tablets. For particles difficult to fluidize we have developed the Glatt Spouted Bed Technology.
The coating fluid is sprayed onto solid materials, which are presented to it. The introduction
of process air causes the film coating to solidify. Small droplets
and a low viscosity ensure that the distribution is uniform.
The time and energy-intensive evaporation of solvents can be dispensed
with by the use of molten materials as coating liquids.
Specific manipulation of the product characteristics of particles
or tablets such as:
2-layer coating on micro pellets |
- Shelf life
- Hygroscopicity
- Flowability
- Surface structure
- Solubility
- Release of active ingredients
- Taste
- Smell
- Behaviour when dissolving
- Sensitivity to light
- Visual attractiveness
|
Manufacturing options
Glatt provides systems with different capacities:
Batch Fluid
Bed Systems with batch sizes
- from 2g to 1500kg/batch (Top Spray Coating)
- from 50g to 700kg/batch (Bottom Spray Coating)
- from 500g to 250kg/batch
(Rotor Coating)
Continuous Fluid
Bed Systems with throughputs from 20kg to 5t/h
Spouted Bed Systems with throughputs from 200g to 3t/h.
|
