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

Thursday 21 May 2015

Texture Analysis in Action: the Eye Shadow Test

Eye Shadow test using the TA.XTplus Texture Analyser The EYE SHADOW TEST uses standard Cylinder Probes P/2 – P/6 to perform a puncture test on the pressed tablet form of eyeshadow, which is today probably the most popular form of this product.

An essential purpose of binders, and other raw ingredients, is to provide stability to the tablet to prevent it from crumbling, flaking and dusting both during shipment and use. This property is judged by measuring the hardness or ‘cake strength’ of the tablet by penetration tests.

Tuesday 19 May 2015

Gels and Films Texture Measurement and Analysis

Measurement of gel strength using the TA.XTplus Texture Analyser
The measurement of gel strength and film properties is of widespread interest in the manufacture of pharmaceutical, medical and cosmetic products. 

Gel strength is a measure of the ability of a colloidal dispersion to develop and retain a gel form. Other gel properties such as elasticity and rupture force of, for example, pectin, gelatine, agar etc. are important in the development of such products as coronary stents where hydrogel polymers are selected due to their soft, rubbery nature which gives them a strong, superficial resemblance to living, soft tissue.