Color-changing dentifrice compositions

Abstract

A color-changing oral care composition, in particular a dentifrice composition, contains: (i) an encapsulated dye particle comprising a dye and a coating layer encapsulating the dye, where the coating layer comprising hydroxy propyl methyl cellulose (HPMC) and polyvinyl alcohol (PVA), and (ii) 0.2% to 1.2% by weight of the composition, of flavor ingredients, where the flavor ingredients have a clog P value of 2 to 6, and where the flavor ingredients have Hansen Solubility Parameter (HSP) Distance (Ra) with hydroxy propyl methyl cellulose (HPMC) greater than 7.5, and Hansen Solubility Parameter (HSP) Distance (Ra) with polyvinyl alcohol (PVA) greater than 3.5.

Dependencies are inferred from the claim text.