FRAGRANCE PROCESS

Abstract

A method of extending the olfactory effect of a fragrance added to a washed item, comprising the addition to the wash of the fragrance, the fragrance comprising at least one compound selected from the group consisting of ethyl (Z)-2-acetyl-4-methyltridec-2-enoate; ethyl N,S-bis(4-oxo-4-(2,6,6-trimethylcyclohex-3-en-1-yl)butan-2-yl)cysteinate; 4-(dodecylthio)-4-methylpentan-2-one; 1-butoxy-3-((1E,4Z)-hepta-1,4-dien-1-yl)benzene; and 2-ethoxy-4-((1E,4Z)-hepta-1,4-dien-1-yl)phenol.

A washed item in which the washing utilized at least one of the compounds and which was then stored, for example, in a cupboard, closet or drawer, is found to have retained a substantial proportion of the fragrance, and for a longer time

Claims

1. A method of extending the olfactory effect of a fragrance added to a washed item, comprising the addition to the wash of the fragrance, the fragrance comprising at least one compound selected from the group consisting of ethyl (Z)-2-acetyl-4-methyltridec-2-enoate; ethyl N,S-bis(4-oxo-4-(2,6,6-trimethylcyclohex-3-en-1-yl)butan-2-yl)cysteinate; 4-(dodecylthio)-4-methylpentan-2-one; 1-butoxy-3-((1E,4Z)-hepta-1,4-dien-1-yl)benzene; 2-ethoxy-4-((lE,4Z)-hepta-1,4-dien-1-yl)phenol; and mixtures thereof.

2. The method according to claim 1, in which the compound is present in the fragrance to the extent of from 1-30% by weight.

3. The method according to claim 1, in which the fragrance is added as a fragrant wash in a suitable solvent.

4. The method according to claim 1, in which the fragrance is added as part of a washing product.

Description

EXAMPLE

Basic Fragrance Suitable for Fabric Softener

[0030]

TABLE-US-00001 parts by weight Compound/Inqredient 1/1000 AGRUMEX (2-TERT-BUTYLCYCLOHEXYL ACETATE) 30 DODECANAL 2 2-METHYLUNDECANAL 1 AMBROFIX (3A,6,6,9A-TETRAMETHYLDODECAHYDRONAPHTHO[2,1-B]FURAN) 5 BENZYL ACETATE 20 CASHMERAN (6,7-DIHYDRO-1,1,2,3,3-PENTAMETHYL-4(5H)-INDANONE) 10 CITRONELLOL 40 CYCLOGALBANATE (2-PROPENYL (CYCLOHEXYLOXY)ACETATE) 5 DAMASCONE DELTA (1-(2,6,6-TRIMETHYL-3-CYCLOHEXEN-1-YL)-2-BUTEN-1-ONE) 10 DIHYDRO MYRCENOL (2,6-DIMETHYL-7-OCTEN-2-OL) 80 ETHYL VANILLIN (3-ETHOXY-4-HYDROXYBENZALDEHYDE) 15 GARDENOL (1-PHENYLETHYL ACETATE) 5 GERANIOL (2-TRANS-3,7-DIMETHYL-2,6-OCTADIEN-1-OL) 30 GERANYL ACETATE (3,7-DIMETHYLOCTA-2,6-DIENYL ACETATE) 15 HEDIONE (METHYL 3-OXO-2-PENTYLCYCLOPENTANEACETATE) 60 HEXYL ACETATE 15 HEXYL CINNAMIC ALDEHYDE (2-HEXYL-3-PHENYL-2-PROPENAL) 60 HEXYL SALICYLATE (HEXYL 2-HYDROXYBENZOATE) 90 IONONE BETA (4-(2,6,6-TRIMETHYL-1-CYCLOHEXEN-1-YL)-3-BUTEN-2-ONE) 15 ISO E SUPER 50 (2-ACETYL-1,2,3,4,5,6,7,8-OCTAHYDRO-2,3,8,8-TETRA-METHYLNAPHTALENE JASMACYCLENE 30 (3A,4,5,6,7,7A-HEXAHYDRO-4,7-METHANO-1-INDEN-5(6)-YL ACETATE) JAVANOL.sup.1) 5 LAVANDIN GROSSO OIL 30 MANZANATE (ETHYL 2-METHYLPENTANOATE) 4 MEFROSOL (3-METHYL-5-PHENYL-1-PENTANOL) 30 METHYL ANTHRANILATE(METHYL 2-AMINOBENZOATE) 5 NEROLINE CRYSTALS (NAPHTALENE, 2-ETHOXY-) 15 NYMPHEAL (3-(4-ISOBUTYL-2-METHYLPHENYL)PROPANAL) 20 PATCHOULI OIL 10 PEACH PURE (4-UNDECANOLIDE) 15 PEONILE (2-CYCLOHEXYLIDENE-2-PHENYLACETONITRILE) 40 PETALIA (CYCLOHEXYLIDENE-O-TOLYL-ACETONITRILE) 15 PHENYL ETHYL ACETATE (2-PHENYLETHYL ACETATE) 5 PHENYL ETHYL ALCOHOL (2-PHENYLETHANOL) 40 RADJANOL.sup.2) 30 RASPBERRY KETONE (4-(4-HYDROXYPHENYL)-2-BUTANONE) 5 ROSE OXIDE (4-METHYL-2-(2-METHYL-1-PROPENYL)TETRAHYDRO-2H-PYRAN) 3 ROSYFOLIA ((1-METHYL-2-(5-METHYLHEX-4-EN-2-YL)CYCLOPROPYL)METHANOL) 10 TRICYCLAL (2,4-DIMETHYL-3-CYCLOHEXENE-1-CARBALDEHYDE) 5 UNDECAVERTOL (4-METHYL-3-DECEN-5-OL) 15 DIPROPYLENE GLYCOL 110 Total: 1000 .sup.1)Javanol = ((1-METHYL-2-(1,2,2-TRIMETHYLBICYCLO(3.1.0)-HEX-3-YLMETHYL)-CYCLOPROPYL)METHANOL) .sup.2)Radjanol = 2-ETHYL-4-(2,2,3-TRIMETHYL-3-CYCLOPENTEN-1-YL)-2-BUTEN-1-OL

[0031] This accord gave a fresh floral fruity character on neat product, and wet and dry fabric

[0032] Two samples of this fragrance formula were modified by replacement of the dipropylene glycol (DPG) solvent by identical weights of [0033] (i) ethyl (Z)-2-acetyl-4-methyltridec-2-enoate, and [0034] (ii) a mixture of ethyl (Z)-2-acetyl-4-methyltridec-2-enoate (6 parts), ethyl N,S-bis(4-oxo-4-(2,6,6-trimethylcyclohex-3-en-1-yl)butan-2-yl)cysteinate (4 parts) and 4-(dodecylthio)-4-methylpentan-2-one (1 part).

[0035] The fragrance formulae thus modified were designated B and C, respectively.

[0036] The three fragrances were each added to a sample of a unfragranced fabric softener base at a proportion of 1% by weight of the fabric softener base. The fabric softener with the unmodified fragrance was designated Fabsoft A. The other two were designated Fabsoft B and Fabsoft C, to match the modified fragrances added thereto. Samples of the fragrances were retained for purposes of comparison.

[0037] The fabric softeners were prepared one day prior to testing.

[0038] The washing load in each case consisted of one towel (100% cotton), one T-shirt (95% cotton and 5% Elasthane™ polyether-urea) and one sport T-shirt (100% synthetic).

[0039] The washing cycle was one of 18 minutes and a spin of 1200 rpm.

[0040] At the end of the various cycles, the washed items were removed and dried initially for one day on a clothes line. They were then put in boxes to emulate storage in a cupboard or drawer and tested after 6 days' storage by trained perfumers. The perfumers assessed the intensity of the odour on a scale of from 0 (weak) to 5 (very strong), and also the olfactory qualities in comparison with the original fragrances.

[0041] The results were as follows:

TABLE-US-00002 Odour Intensity Odour character Fabsoft A 2 Weak, only slight hint of original fragrance Fabsoft B 4.5 Fresh, strong, aldehydic, clear presence of original fragrance Fabsoft C 4 Floral, fruity, aldehydic

[0042] Both of the samples utilizing the compounds were not only stronger in odour, but also retained more of the characteristics of the original fragrances, the single compound fragrance (B) slightly outperforming the mixture (C). In contrast, the sample containing the unmodified fragrance was not only weakly discernible, but also had lost most of the original olfactory character.