PROCESS TO MANUFACTURE ANTIPERSPIRANT COMPOSITIONS

摘要

The invention relates to a process of manufacture of a solid cosmetic antiperspirant in the form of a stick comprising from 0.0005 to 3 wt. % of a hydroxyalkyl urea, the process comprising the steps of comprising: (a) providing a stick dispenser comprising a stick barrel; (b) providing a first mixture comprising a solvent and gellant and heating the mixture to a temperature above the melting point of the gellant; (c) providing a second mixture comprising a hydroxyalkyl urea and a carrier material selected from the group consisting of: a natural oil that comprises a triglyceride of an unsaturated carboxylic acid, and polyalkylene glycols having a molecular weight of up to 650 Daltons, and heating this mixture to a temperature of 65° C. or above; (d) mixing together of the first and second mixtures; (e) addition of an antiperspirant active to the mixture (d); and, (f) filling a stick barrel with a portion of the mixture (e).