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How to measure and analyse the texture of food, cosmetics, pharmaceuticals and adhesives.

Tuesday 3 July 2018

Texture Analysis in Action 2: Powder Vertical Shear Rig

Anyone who has handled powders has almost certainly come across a clogged hopper, and will know that this is caused by caking, arching or rat-holing. 

To measure the tendency of a powder to show these properties, the main property to consider is the powder’s bulk resistance to the initiation of flow. 

This helps to imitate the consolidation that occurs under the powder’s own weight when the outlet is shut and the feeder is switched off. It is when the outlet is opened and the feeder started again that the blockages can build up.