How to Manufacture Hand Sanitizers

Hand sanitizers are liquids, gels or foams used to eliminate bacteria and viruses, etc.

A number of active ingredients are used in the manufacture of hand sanitizers, however the most effective sanitizing products are based on alcohol, usually isopropyl or ethyl alcohol. Typically the alcohol content of hand sanitizer products is between 60 and 95%.

The alcohol is usually blended with an aqueous dispersion of carbomers such as Carbopol to provide the gelling effect, although some products are lower viscosity for use in foam dispensers.

One of the key steps in the manufacturing process is preparation of the gel. Obtaining an agglomerate-free dispersion is essential to ensure a clear, bright gel after neutralisation but low density powders such as Carbopol can be difficult to incorporate into liquids with a conventional agitator, and this can lead to dusting problems and aeration.

The high shear mixing of a Silverson mixer ensures rapid incorporation and dispersion of powders to form an agglomerate-free solution, with minimized aeration.

To find out more, read our application report on Hand Sanitizers:
https://www.silverson.com/us/resource-library/application-reports/manufacture-of-hand-sanitizers

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