US 4,394,127 AGranted

Method of depositing perfume and compositions therefor

AssigneeLever Brothers Company

InventorJames B. Melville

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Abstract

A method of cleaning and depositing perfumes on a surface comprises contacting the surface with a liquor containing a surfactant having a size of 0.1 to 2000 microns and particles comprising a perfume and a water dispersible amine. The surfaces to be treated may be fabrics or hard surfaces. Preferred amines are the primary and tertiary alkyl amines, where one alkyl group has from 8 to 22 carbon atoms. The particles may be made by forming a liquid mixture of the amine and the perfume, and then solidifying and forming into particles. The particles may be incorporated in a variety of products including fabric washing powders and liquid, was-addable solids or liquids, and hard surface cleaning powders and liquids.

Claims6

Dependent claims

A method of cleaning and depositing perfume on a fabric surface, comprising contacting the fabric surface with an aqueous composition containing a perfume and from about 0.05 g per liter to about 8.5 g per liter, based on the volume of the aqueous composition, of a water-soluble detergent active material, with or without a detergency builder, characterized in that the perfume is added to the aqueous composition in the form of from about 0.005 g per liter to about 0.3 g per liter, based on the volume of the aqueous composition of particles having an average size of from about 0.1 micron to about 2000 microns, the particles being an intimate mixture of (a) from about 0.5% to about 50% by weight, based on the weight of the particles, of a perfume component;

and (b) from about 50% to about 99.5% by weight, based on the weight of the particles of a matrix comprising at least one water-dispersible amine of the formula
R--N--R.sub.1 R.sub.2
where R is an alkyl or alkenyl group having 8 to 22 carbon atoms, R.sub.1 is hydrogen or an alkyl or alkenyl group having 1 to 4 carbon atoms, and R.sub.2 is hydrogen or an alkyl or alkenyl or amino-alkyl group having 1 to 22 carbon atoms, the matrix containing no added cationic material.

Dependencies are inferred from the claim text.