| abstract |
The present invention relates to air freshener devices comprising water-based liquid compositions, preferably clear liquids, that provide an improved diffusion of the composition and allow the use of fragrance materials with a wide range of characteristics, namely a wide range of clogP values. The compositions are clear microemulsions particularly adapted for use in automatic air fresheners and comprise at least 40% w/w of an aqueous phase, preferably water, an active oil in an amount comprised between 0.01 and 5% w/w, an oil-solubilizing system which is formed of a surfactant mixture and a solubilizing-aid ingredient, and a propellant system, wherein the propellant system is present in an amount of up to 40% w/w, the solubilizing- aid ingredient is present in an amount of up to 5% w/w, the surfactant system is a mixture of ionic and non-ionic surfactants and the weight ratio of perfume oil to total surfactant mixture is between 0.2 and 4.5, all w/w percentages being relative to the total weight of the formulation. |