Abstract:
A fragrance cartridge comprising a reservoir containing a fragrance material and provided with channels to permit ingress of carrier gas into the reservoir and egress of fragrance-containing carrier gas from the reservoir, the channels being defined by capillaries having internal diameter and length dimensions sufficient to act as closure means to prevent, or substantially prevent, leakage of fragrance from the reservoir into a head space external of the cartridge when carrier gas flow is interrupted. The cartridge can be used, for example, to enhance the sensorial perception of a viewer, listener or consumer of an audio and/or visual performance or presentation, by passing fragrance borne on the carrier into a head space local to the listener, viewer or consumer.
Abstract:
The present invention relates to fragrance compositions to be distributed by an aerosol generator. Said fragrance composition comprises 30 % by weight or more of a component of the odour class A, wherein said components are characterised by a sensory threshold concentration that is 1 ng/l or higher and its vapour pressure that is 10 μg/l or higher.
Abstract:
A method of enhancing the aroma of an aroma composition, comprising the addition to the composition of an aroma- enhancing quantity of 2,4-nonadiene. The addition enhances the "radiance" of aroma compositions, especially foodstuffs, resulting in a stronger aroma and the need for reduced quantities of additional aroma ingredients.