J hooks are the distinctive wear patterns on punch tips that are a cause of such tablet defects as capping lamination and poor friability.
Capping and lamination definition.
The term tablet capping is used when either the upper or lower part of the tablet separates horizontally either partially away from the main body or completely to form a cap when ejected from the press or during the handling process.
This challenge can be overcome by doing a pre compression as well as reducing the compression and minimizing the tableting rate.
Lamination is the term used for a split in the tablet anywhere but at the top.
Anyone who has experienced capping or lamination during tablet production knows the frustration that comes from trying to diagnose the issue.
Some causes and solutions of the capping of tablets are given here.
In this article we discuss a possible cause and several solutions.
Tablet lamination is most common problems observed during compression of tablets it is often misconceived with capping problem firstly we need to understand lamination to rectify it as both capping and lamination have different reasons and different rectifications.
First lamination is caused by air being trapped in the tablet especially among the granules or particles.
Usually capping and lamination occur during or after tablet manufacturing and may therefore influence follow up processes such as the coating.
Lamination is the separation of a tablet into two or more distinct horizontal layers.
The purpose of the current research was to study this underlying cause leading to occurrence of capping or lamination of tablets through evaluation of powder rheological properties.
It happens when the air in the tablet is not being.
Ankur choudhary print question forum 3 comments when the top of a tablet separates from rest of its body it is called tablet capping.
Air entrapment efficiency of the powders is one of the main factors leading to occurrence of capping or lamination tendency of tablets manufactured from the directly compressible powder blends.
Lamination is essentially the same as capping and with similar causes.
Capping in tablets during the compression is a major problem in tablet manufacturing.
Lamination is also caused by the presence of a large amount of fines in the granulations.
Capping happens when air is trapped within the tablet during the compression.
Capping and lamination are the defects arising as a result of air entrapment in the granular material.
Main reason for lamination is attributed to presence of bands cracks in tablet whereas presence of air in.
Lamination laminating 1 5 definition.
Capping is usually easy to fix either by increasing the dwell time i e slowing down the production or by careful analysis of the formulation and production process.
