Use of fragrance compositions for the prevention of the development of indole base malodours from fecal and urine based soils

Abstract

The present invention relates to the use of fragrance compositions, said fragrance compositions comprising fragrance compounds selected among: aldehydes, α,β-unsaturated aldehydes, alcohols, ketones, and mixtures thereof in any home and personal care product, each fragrance compound being able to restrict the formation of indole to less than 0.01 ppm (wt / wt) after 24 hours incubation at room temperature in an airtight sealed vessel of suitable fresh human urine containing 0.28% by weight of each fragrance compound in order to prevent the development of indole based malodours from faecal and urine based soils.

Description

TECHNICAL FIELD OF INVENTION[0001]The invention relates to fragrances and fragrance ingredients which can be used in a variety of products to prevent the development of malodours derived from the action of micro-organisms on excreted matter such as urine or faeces. The present invention aims to prevent the creation of malodorous compounds based on indole and related compounds.BACKGROUND OF THE INVENTION[0002]Perfumes are used in many applications to mask malodours. A particularly important category of malodours are, for example, those resulting from substances transpired by or excreted by humans in particular perspiration, urine, faeces or menstrual fluid, and odours caused by animal urine or faeces, especially those of domestic pets.[0003]Malodours are usually caused by particularly odorous substances such as sulphur compounds e.g. hydrogen sulphide, and low molecular weight thiols and thioethers, nitrogen containing compounds such as ammonia and amines including heterocyclic compo...

AI Technical Summary

Benefits of technology

[0024]A further preferred form of the invention relates to the use of fragrance compounds selected among: aldehydes, α,β-unsaturated aldehydes and allylic alcohols which satisfy the

Problems solved by technology

Consequently preventing, countering, reducing or destroying malodour is not straightforward.

Activated carbon and zeolites have been used as absorbents for malodours but these are not suited for incorporation into many products.

Antimicrobial agents such as zinc compounds and Triclosan (2′,4′,4′-trichloro-2-hydroxy-diphenyl ether) are used to kill microorganisms involved in producing malodours, but many are non-specific and can lead to imbalances in the natural microflora.

Herein lies a major disadvantage of using perfumes to mask malodour.

However as mentioned earlier malodours are complex and such approaches may not counter all the components of the malodour, so it is more likely that they modify the nature of the odour which again may be a worthwhile benefit but is only a partial solution to the problem.

Again the patent only teaches that aldehydes react with some malodorous molecules and there is no evidence for the prevention of biologically generated malodours.

Thus while it is apparent from the prior art that there are many methods which attempt to prevent malodour, none are completely satisfactory.

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