This challenge can be overcome by doing a pre compression as well as reducing the compression and minimizing the tableting rate.
Capping and lamination of tablets.
Lamination is also caused by the presence of a large amount of fines in the granulations.
Lamination is separation that occurs at any other part of the tablet except the top or bottom.
Capping and lamination are common defects that occur during tablet manufacturing.
Tablet capping and lamination powder compaction is widely used to produce pharmaceutical tablets and is referred to as a tabletting process.
Ejection issues could lead to lamination.
First lamination is caused by air being trapped in the tablet especially among the granules or particles.
As the air is released when the upper punch die tip is raised capping only occurs at the top of the tablet.
Although the method is widely used there are still significant challenges with achieving a high quality compact.
If a fracture occurs in the lower part of the tablet it is referred to as lamination and is discussed below.