Patent ID: 8668958

Claim:
A method for depositing a germicidal composition on the bristles of a mascara applicator brush, comprising: providing mascara applicator brush consisting of polymer bristles; performing cold soaking of the brush in a mixture of at least one large cation salt and at least one large anion salt, at least one of which having germicidal properties, wherein the mixture forms a germicidal composition coating layer bound to each of the polymer bristles, so that the germicidal composition is not salted out from the coating layer; then performing a rinsing step to eliminate excess substances not bound to the bristles of the brush; and then performing a drying step to eliminate water contained in the bristles; wherein the cation of the at least one large cation salt is non-metallic and is selected from the group consisting of quaternary ammoniums bearing at least one alkyl chain having a number of carbons greater than 8, ammonium polyacrylate cationic polymers, polyiminium hydrochlorides, and polymers bearing quaternary ammonium functions; and wherein the anion of the at least one large anion salt is selected from the group consisting of carboxylate anions with an alkyl chain having a number of carbons greater than 10, alkyl sulphate anions with an alkyl chain having a number of carbons greater than 10, polycarboxylate polyanions, silicate anions and polyphosphate anions.