Method for monitoring or validating fragrance compositions

A computer-implemented method for generating a temporal evaporation profile of a fragrance product for validating or monitoring production of the fragrance product, wherein the fragrance product comprises a fragrance composition and a matrix, and the fragrance composition comprises one or a plurality of fragrance ingredients, the method comprising:

• a) receiving or obtaining fragrance composition data associated with one or more fragrance ingredients of the fragrance composition and matrix data associated with the matrix;
• b) providing a vapour pressure of each fragrance ingredient based on the fragrance ingredients data;
• c) determining, based on the fragrance ingredients data and the matrix data, a time-dependent interaction coefficient of each fragrance ingredient in a condensed phase of the fragrance composition in the matrix over a predetermined period of time;
• d) generating, based on the provided vapour pressure and the determined time-dependent interaction coefficient, the temporal evaporation profile of the fragrance product, wherein the temporal evaporation profile is related to a time-dependent quantity associated with the evaporation behaviour of each fragrance ingredient of the fragrance product over the predetermined period of time;
• and
• e) validating or monitoring, based on the generated temporal evaporation profile, production of the fragrance product in the matrix with respect to a performance characteristic,
• wherein validating or monitoring production based on the generated temporal evaporation profile comprises comparing the temporal evaporation profile to a measured performance characteristic of the produced fragrance product to determine whether a quality criterion is fulfilled, and automatically transmitting to production-line equipment at least one of:
• (i) a control signal to dosing equipment to control or adjust dosing of one or more components of the fragrance product when the quality criterion is fulfilled, or (ii) a warning signal and/or a stop signal to a conveyor system when the quality criterion is not fulfilled.