Compositions to limit or eliminate the perception of washing machine malodor

Abstract

The present disclosure relates to compositions that reduce, prevent, or inhibit the perceived intensity of washing machine malodors. The present disclosure also relates to consumer products, such as fabric care products, containing the said compositions.

Description

[0001] COMPOSITIONS TO LIMIT OR ELIMINATE THE PERCEPTION OF WASHING MACHINE MALODOR

[0002] Field of the Disclosure

[0003] The present disclosure relates to volatile compositions to limit, decrease or eliminate the perception of washing machine malodor, and uses thereof. The present disclosure also relates to consumer products, such as fabric care products, containing the said compositions.

[0004] Background of the Disclosure

[0005] Malodorous smells exist in many environments and are experienced in our daily life. Malodors are frequently complex mixtures of more than one malodorant compound which may typically include various amines, thiols, sulfides, short chain aliphatic and olefinic acids, e.g. fatty acids, and derivatives thereof. Malodors are not pleasant for humans and therefore there is a constant need for malodor counteracting (MOC) compositions and / or ingredients for decreasing or suppressing the perception of malodors.

[0006] For example, washing machine malodor remains a problem in the household environment. Washing machine malodor refers to an unpleasant odor that is typically found inside washing machines and often transfers to textiles that are washed therein.

[0007] Washing machine malodor, particularly on textile articles, may be removed or reduced using conventional means, such as washing the article again. However, a second washing is often ineffective and presents a waste of time, water, and detergent, and causes increased wear on clothing. Using more detergent is often undesirable due to accumulatation of detergent on the washed article over time.

[0008] Therefore, there is a constant need for malodor counteracting (MOC) compositions for suppressing or eliminating the perception of washing machine malodors.

[0009] The present disclosure provides compositions and methods of use thereof to counteract washing machine malodors by limiting, decreasing, or eliminating the perception of said malodor. The use of the compositions described herein in consumer products is also an object of the present disclosure.

[0010] Summary of the Disclosure

[0011] The following aspects of the present disclosure seek to address one or more of the problems described hereinabove.

[0012] In a first aspect, the present disclosure provides a composition for reducing, preventing, or inhibiting a perception of washing machine malodor, the composition comprising a plurality of perfumery raw materials, wherein the weighted average of the volatilities of the perfumery raw materials having a log P of at least 2.5 is at least 100 pg / L in air, and wherein 3 or more of the perfumery raw materials are washing machine malodor counteracting ingredients. In a second aspect, the present disclosure relates to a consumer product comprising the composition described herein.

[0013] In a third aspect, the present disclosure relates to a method for reducing, preventing, or inhibiting a perception of washing machine malodor in air or on a surface, typically textile, the method comprising: dispensing the composition or consumer product described herein into the air or contacting the surface with the composition or consumer product described herein.

[0014] In a fourth aspect, the present disclosure relates to the use of a composition for reducing, preventing, or inhibiting the perception of washing machine malodor, the composition comprising a plurality of perfumery raw materials, wherein the weighted average of the volatilities of the perfumery raw materials having a log P of at least 2.5 is at least 100 pg / L in air, and wherein 3 or more of the perfumery raw materials are washing machine malodor counteracting ingredients.

[0015] Detailed Description

[0016] As used herein, the terms “a”, “an”, or “the” means “one or more” or “at least one” unless otherwise stated.

[0017] While compositions and methods are described in terms of “comprising,” “containing,” or “including” various components or steps, the compositions and methods can also “consist essentially of” or “consist of” the various components, substances and steps. As used herein the term “consisting essentially of” shall be construed to mean including the listed components, substances or steps and such additional components, substances or steps which do not materially affect the basic and novel properties of the composition or method. In some embodiments, a composition in accordance with embodiments of the present disclosure that “consists essentially of” the recited components or substances does not include any additional components or substances that alter the basic and novel properties of the composition.

[0018] Unless defined otherwise, all technical and scientific terms used herein have the same meaning as is commonly understood by one of skill in the art to which this specification pertains.

[0019] It should be understood that any numerical range recited herein is intended to include all sub-ranges subsumed therein. For example, a range of “1 to 10” is intended to include all subranges between and including the recited minimum value of 1 and the recited maximum value of 10; that is, having a minimum value equal to or greater than 1 and a maximum value of equal to or less than 10. Because the disclosed numerical ranges are continuous, they include every value between the minimum and maximum values. Unless expressly indicated otherwise, the various numerical ranges specified in this application are approximations.

[0020] As used herein, and unless otherwise indicated, the term “about” or “approximately” means an acceptable error for a particular value as determined by one of ordinary skill in the art, which depends in part on how the value is measured or determined. In certain embodiments, the term “about” or “approximately” means within 1 , 2, 3, or 4 standard deviations. In certain embodiments, the term “about” or “approximately” means within 50%, 20%, 15%, 10%, 9%, 8%, 7%, 6%, 5%, 4%, 3%, 2%, 1%, 0.5%, or 0.05% of a given value or range.

[0021] Throughout the present disclosure, various publications may be incorporated by reference. Should the meaning of any language in such publications incorporated by reference conflict with the meaning of the language of the present disclosure, the meaning of the language of the present disclosure shall take precedence, unless otherwise indicated.

[0022] Throughout the present disclosure, various chemical names and structures may be recited. Unless otherwise stated, any stereoisomers, such as enantiomers, diastereomers, anomers, epimers, and the like; and geometric isomers, such as cis / trans or E / Z isomers, of the recited chemical name or structure are contemplated. As would be understood by those of ordinary skill in the art, stereoisomers may possess one stereocenter, giving rise to enantiomers, or more than one stereocenter, giving rise to diastereomers, each stereocenter having one of two different stereochemistries (i.e., R or S). Enantiomers may be characterized by their ability to rotate oncoming plane-polarized light to the right, designated as dextrorotatory, “(+)” or “D”, or to the left, designated as levorotatory, or “L”. Enantiomers may exist as racemic mixtures or scalemic mixtures. Geometric isomers refer to isomers in which the spatial relationship of atoms around a double bond are different, typically designated E or Z according to conventional understanding in the chemical art. Geometric isomers may also exist as mixtures of E and Z isomers. All of the aforementioned isomeric variations of the chemical names or structures recited herein are included.

[0023] In the first aspect, the present disclosure relates to a composition for reducing, preventing, or inhibiting the perception of washing machine malodor, the composition comprising a plurality of perfumery raw materials, wherein the weighted average of the volatilities of the perfumery raw materials having a log P of at least 2.5 is at least 100 pg / L in air, and wherein 3 or more of the perfumery raw materials are washing machine malodor counteracting ingredients.

[0024] As used herein, the term “washing machine malodor” refers to malodor associated with laundry appliances, rooms where laundry appliances are used, and the like. Washing machine malodor is an unpleasant odor that is typically found inside washing machines and often transfers to textiles that are washed therein. In some instances, washing machine malodor may permeate into the surrounding air where the washing machine is located.

[0025] As used herein, the term “perfumery raw material” refers to a compound or mixture of perfuming ingredients used in perfuming formulations or compositions to impart a hedonic effect. In other words, to be considered as a perfuming ingredient, such a perfuming ingredient must be recognized by a person skilled in the art as being capable of imparting or modifying in an active or pleasant way the odor of a composition, and not just as having an odor.

[0026] As used herein, the term “perfuming ingredient” refers to a compound, the main purpose of which is to impart or modulate odor. In other words, to be considered as a perfuming ingredient, such ingredient must be recognized by a person skilled in the art as being capable of imparting or modifying in at least an active or pleasant way the odor of a composition, and not just as having an odor. For the purposes of this disclosure, perfume accords also include combinations of perfuming ingredients with substances that collectively improve, enhance or modify the delivery of the perfuming ingredients, such as pro-perfumes, emulsions or dispersions, as well as combinations that confer benefits other than modifying or conferring odor, such as longevity, eruption, malodor counteraction, antimicrobial effect, microbial stability, insect control.

[0027] The nature and type of perfuming ingredients do not warrant a more detailed description here, which in any case would not be exhaustive, as a person of ordinary skill in the art would be able to select them based on general knowledge and according to the intended use or application and the desired organoleptic effect. In general, these perfuming ingredients belong to chemical classes as varied as alcohols, aldehydes, ketones, esters, ethers, acetates, nitriles, terpenoids, nitrogenous or sulphurous heterocyclic compounds and essential oils, and can be of natural or synthetic origin. In any event, many of these ingredients are listed in references such as the works PERFUME AND FLAVOR CHEMICALS, 1969, Montclair, New Jersey, USA, or other works of a newer version or similar nature, by S. Arctander, and in patent literature abundant in the field of perfumery. It should also be understood that said ingredients can also be compounds known to release in a controlled manner various types of perfuming compounds.

[0028] The number of perfumery raw materials used in the composition of the present disclosure is not particularly limited. However, in some embodiments, the plurality of perfumery raw materials comprises from 3 to 200, typically 3 to 100, more typically 3 to 50, perfumery raw materials.

[0029] Perfumery raw materials include washing machine malodor counteracting ingredients. As used herein, the term “washing machine malodor counteracting ingredient” refers to a perfumery raw material that is capable of reducing or inhibiting the perception of washing machine malodor.

[0030] Exemplary washing machine malodor counteracting ingredients include, but are not limited to: cis-4-(2-methyl-2-propanyl)cyclohexyl acetate, trans-4-(2-methyl-2-propanyl)cyclohexyl acetate, (2E)-2-benzylideneoctanal,

[0031] (+-)-tetrahydro-2-isobutyl-4-methyl-4(2H)-pyranol, 1-((2RS,3RS)-2,3,8,8-tetramethyl-1 ,2,3,4,5,6,7,8-octahydronaphthalen-2-yl)ethenone,

[0032] 1-[(2RS,3RS,8aRS)-2,3,8,8-tetramethyl-1 ,2,3,5,6,7,8,8a-octahydro-2-naphthalenyl]ethenone,

[0033] 1-[(2RS,3RS,8aRS)-2,3,8,8-tetramethyl-1 ,2,3,4,6,7,8,8a-octahydro-2-naphthalenyl]ethenone,

[0034] (+-)-2,6-dimethyl-7-octen-2-ol,

[0035] 2-phenylethanol,

[0036] (+)-limonene, methyl 2-((1 RS,2RS)-3-oxo-2-pentylcyclopentyl)acetate, diethyl cis- 1 ,4-cyclohexanedicarboxylate, diethyl trans-1 ,4-cyclohexanedicarboxylate,

[0037] (+-)-3,7-dimethyl-6-octen-1-ol,

[0038] (+-)-5-heptyldihydro-2(3H)-furanone,

[0039] (+-)-3,7-dimethyl-1 ,6-octadien-3-ol,

[0040] (+-)-ethyl 2-methylpentanoate,

[0041] (1 RS,2RS)-2,4-dimethyl-3-cyclohexene-1 -carbaldehyde,

[0042] (1 RS, 2SR)-2,4-dimethyl-3-cyclohexene-1 -carbaldehyde, allyl (3-methylbutoxy)acetate,

[0043] (+-)-allyl (2-methylbutoxy)acetate,

[0044] (+-)-2-methylundecanal,

[0045] Dodecanal,

[0046] Decanal,

[0047] (3aRS,5aSR,9aSR,9bRS)-3a,6,6,9a-tetramethyldodecahydronaphtho[2,1-b]furan, tricyclo[5.2.1 ,0~2,6~]dec-3-en-8-yl acetate, tricyclo[5.2.1 ,0~2,6~]dec-4-en-8-yl acetate,

[0048] 1 ,1 '-oxydibenzene,

[0049] (+-)-ethyl 2-methylbutanoate,

[0050] 2-methylbutyl salicylate, pentyl salicylate, hexyl 2-hydroxybenzoate,

[0051] (+-)-3,7-dimethyl-3-octanol,

[0052] (1 RS,2RS)-2-(2-methyl-2-propanyl)cyclohexyl acetate,

[0053] (1 RS,2SR)-2-(2-methyl-2-propanyl)cyclohexyl acetate,

[0054] 2-methoxynaphthalene, octanal, nonanal, undecanal,

[0055] (2Z)-3,7-dimethyl-2,6-octadienal,

[0056] (2E)-3,7-dimethyl-2,6-octadienal, 1-oxa-12-cyclohexadecen-2-one,

[0057] 1-oxa-13-cyclohexadecen-2-one,

[0058] (E)-3,7-dimethyl-2,6-octadien-1-ol,

[0059] (+-)-(3E)-3-methyl-4-(2,6,6-trimethyl-2-cyclohexen-1-yl)-3-buten-2-one,

[0060] (+-)-(1 E)-1-(2,6,6-trimethyl-2-cyclohexen-1-yl)-1-penten-3-one,

[0061] (+-)-4,6,6,7,8,8-hexamethyl-1 ,3,4,6,7,8-hexahydrocyclopenta[g]isochromene.

[0062] (+-)-(4E)-3-methyl-4-cyclopentadecen-1-one,

[0063] (+-)-(5E)-3-methyl-5-cyclopentadecen-1-one,

[0064] (+-)-(5Z)-3-methyl-5-cyclopentadecen-1-one,

[0065] (E)-2-pentyl-3-phenyl-2-propenal,

[0066] (-)-propyl (2S)-2-[(2-methyl-2-butanyl)oxy]propanoate,

[0067] (+-)-2, 2, 2-trichloro-1 -phenylethyl acetate,

[0068] 1-(5,5-dimethyl-1-cyclohexen-1-yl)-4-penten-1-one,

[0069] 4-methoxybenzaldehyde,

[0070] (2E)-1-[(1 RS,2SR)-2,6,6-trimethyl-3-cyclohexen-1-yl]-2-buten-1-one,

[0071] 1 ,3,3-trimethyl-2-oxabicyclo[2.2.2]octane,

[0072] (+-)-(E)-4-methyl-3-decen-5-ol, benzyl acetate,

[0073] 2-chromenone,

[0074] (3E)-4-(2,6,6-trimethyl-1 -cyclohexen-1 -yl)-3-buten-2-one,

[0075] 1-[(1 RS,2RS)-1 ,2,8,8-tetramethyl-1 ,2,3,4,5,6,7,8-octahydro-2-naphthalenyl]ethenone,

[0076] 1-((2RS,3RS)-2,3,8,8-tetramethyl-1 ,2,3,4,5,6,7,8-octahydronaphthalen-2-yl)ethenone,

[0077] 1-[(2RS,3RS,8aRS)-2,3,8,8-tetramethyl-1 ,2,3,5,6,7,8,8a-octahydro-2-naphthalenyl]ethenone,

[0078] 1-[(1 RS,2RS,8aSR)-1 ,2,8,8-tetramethyl-1 ,2,3,5,6,7,8,8a-octahydro-2-naphthalenyl]ethenone,

[0079] 1-[(2RS,3RS,8aRS)-2,3,8,8-tetramethyl-1 ,2,3,4,6,7,8,8a-octahydro-2-naphthalenyl]ethenone,

[0080] (+-)-(2,5-dimethyl-2,3-dihydro-1 H-inden-2-yl)methanol,

[0081] 10-undecenal,

[0082] (9E)-9-undecenal,

[0083] (9Z)-9-undecenal,

[0084] (+-)-3-(4-isopropylphenyl)-2-methylpropanal,

[0085] (-)-(2E)-2-ethyl-4-[(1 R)-2,2,3-trimethyl-3-cyclopenten-1-yl]-2-buten-1-ol,

[0086] (+-)-1 -phenylethyl acetate, cyclohexylidene(phenyl)acetonitrile, methyl 2-aminobenzoate,

[0087] (+-)-2,6-dimethyl-5-heptenal,

[0088] (+-)-3-(3-isopropyl-1-phenyl)butanal, (+)-(3S)-3-[(1 R)-4-methyl-3-cyclohexen-1-yl]butanal (A) + (+)-(3R)-3-[(1 R)-4-methyl-3- cyclohexen-1 -yl]butanal,

[0089] (+)-2-{(1 S)-1 -[(1 R)-3,3-dimethylcyclohexyl]ethoxy}-2-methylpropyl propionate, neryl acetate, geranyl acetate,

[0090] (2Z)-2-phenyl-2-hexenenitrile, methyl 2,4-dihydroxy-3,6-dimethylbenzoate,

[0091] 1-decen-4-yne,

[0092] 9-decen-1-ol,

[0093] 3-(4,4-dimethyl-1-cyclohexen-1-yl)propanal,

[0094] (Z)-3-hexenyl acetate,

[0095] 3-(4-ethylphenyl)-2,2-dimethylpropanal

[0096] 3-(2-ethylphenyl)-2,2-dimethylpropanal,

[0097] (2RS,4SR)-4-methyl-2-(2-methyl-1 -propen- 1-yl)tetrahydro-2H-pyran,

[0098] (2RS,4RS)-4-methyl-2-(2-methyl-1 -propen- 1-yl)tetrahydro-2H-pyran,

[0099] (1 R,2R)-1 ,7,7-trimethyl-bicyclo[2.2.1]hept-2-yl acetate,

[0100] (1 S,2S,4S)-1 ,7,7-trimethylbicyclo[2.2.1]heptan-2-ol,

[0101] (1 S,2R,4S)-1 ,7,7-trimethylbicyclo[2.2.1]heptan-2-ol,

[0102] (3R)-1-[(1 R,6S)-2,2,6-trimethylcyclohexyl]-3-hexanol,

[0103] (3S)-1-[(1 R,6S)-2,2,6-trimethylcyclohexyl]-3-hexanol, 1-[(1S,6S)-2,2,6-trimethylcyclohexyl]-3-hexanol, and any combination thereof.

[0104] In an embodiment, the washing machine malodor counteracting ingredients are selected from the group consisting of: cis-4-(2-methyl-2-propanyl)cyclohexyl acetate, trans-4-(2-methyl-2-propanyl)cyclohexyl acetate, (2E)-2-benzylideneoctanal, (+-)-tetrahydro-2-isobutyl-4-methyl-4(2H)-pyranol, 1-((2RS,3RS)-2,3,8,8-tetramethyl-1 ,2,3,4,5,6,7,8-octahydronaphthalen-2-yl)ethenone, 1-[(2RS,3RS,8aRS)-2,3,8,8-tetramethyl-1 ,2,3,5,6,7,8,8a-octahydro-2-naphthalenyl]ethenone,

[0105] 1-[(2RS,3RS,8aRS)-2,3,8,8-tetramethyl-1 ,2,3,4,6,7,8,8a-octahydro-2-naphthalenyl]ethenone, (+-)-2,6-dimethyl-7-octen-2-ol,

[0106] 2-phenylethanol, (+)-limonene, methyl 2-((1 RS,2RS)-3-oxo-2-pentylcyclopentyl)acetate, diethyl cis- 1 ,4-cyclohexanedicarboxylate, diethyl trans-1 ,4-cyclohexanedicarboxylate, (+-)-3,7-dimethyl-6-octen-1-ol,

[0107] (+-)-5-heptyldihydro-2(3H)-furanone,

[0108] (+-)-3,7-dimethyl-1 ,6-octadien-3-ol,

[0109] (+-)-ethyl 2-methylpentanoate,

[0110] (1 RS, 2RS)-2,4-dimethyl-3-cyclohexene-1 -carbaldehyde,

[0111] (1 RS, 2SR)-2,4-dimethyl-3-cyclohexene-1 -carbaldehyde, allyl (3-methylbutoxy)acetate,

[0112] (+-)-allyl (2-methylbutoxy)acetate,

[0113] (+-)-2-methylundecanal, dodecanal, decanal,

[0114] (3aRS,5aSR,9aSR,9bRS)-3a,6,6,9a-tetramethyldodecahydronaphtho[2,1-b]furan, tricyclo[5.2.1 ,0~2,6~]dec-3-en-8-yl acetate, tricyclo[5.2.1 ,0~2,6~]dec-4-en-8-yl acetate,

[0115] 1 ,1 '-oxydibenzene,

[0116] (+-)-ethyl 2-methylbutanoate,

[0117] 2-methylbutyl salicylate, pentyl salicylate, hexyl 2-hydroxybenzoate,

[0118] (+-)-3,7-dimethyl-3-octanol,

[0119] (1 RS,2RS)-2-(2-methyl-2-propanyl)cyclohexyl acetate,

[0120] (1 RS,2SR)-2-(2-methyl-2-propanyl)cyclohexyl acetate,

[0121] 2-methoxynaphthalene, and any combination thereof.

[0122] In another embodiment, the washing machine malodor counteracting ingredients are selected from the group consisting of: octanal, nonanal, decanal,

[0123] 10-undecenal, dodecanal,

[0124] 2-methylundecanal, trivertal, citral, allyl amyl glycolate, ethyl 2-methylbutyrate,

[0125] (12E)-1 -oxacyclohexadec-12-en-2-one, citronellol, geraniol, linalol, tetralinol, amyl salicylate,

[0126] N-methylionone, undecalactone gamma, yara yara, verdyl acetate, diphenyloxyde, galaxolide, muscenone delta, anthamber, fructalate, aldehyde amycinnamique, sclareolate, dorisyl, dihydromyrcenol, rosinol crist, cetalox, applinate, hexyl salicylate, benzyl acetate,

[0127] (2-tert-butylcyclohexyl) acetate, neobutenone alpha, p-anisaldehyde, delta damascene, limonene, eucalyptol, undecavertol, hexyl cinnamaldehyde, ethyl 2-methylpentanoate, coumarin, violet,

[0128] 1-(1 ,2,3,4,5,6,7,8-octahydro-2,3,8,8-tetramethyl-2-naphtyl)ethan-1-one, 2,5-dimethyl-2-indan methanol,

[0129] 9-undecenal, cyclosal, dartanol, styral acetate, peonile, methyl anthranilate, melonal, florhydral, liminal, helvetolide, geranyl acetate,

[0130] (Z)-alpha-butylidene benzeneacetonitrile, mousse cristal, parmantyne, rosalva, hedione, tillenal,

[0131] 3-hexen-1-ol acetate, floralozone, rose oxide, isobornyl acetate, borneol crist,

[0132] (+)-(3R)-1 -[(1 R,6S)-2,2,6-trimethylcyclohexyl]-3-hexanol, sylvamber,

[0133] (3aR,5aS,9aS,9bR)-3a,6,6,9a-tetramethyldodecahydronaphtho[2,1-b]furan,

[0134] Salicyflor, cyclohexyl salicylate, benzyl acetone, mircenal, doremox, and any combinations thereof.

[0135] In the composition of the present disclosure, three (3) or more of the perfumery raw materials are washing machine malodor counteracting ingredients. The number of washing machine malodor counteracting ingredients used is not particularly limited as long as at least 3 of the perfumery raw materials are washing machine malodor counteracting ingredients. In some embodiments, 3 to 20, typically 3 to 15, more typically 3 to 10, of the perfumery raw materials are washing machine malodor counteracting ingredients. The individual amounts of the washing machine malodor counteracting ingredients present in the composition described herein, expressed as weight percent relative to the total weight of the composition unless otherwise noted, are not particularly limited and may be adjusted to achieve various levels of washing machine malodor reduction. A low level of washing machine malodor reduction is defined as 0 to 30% reduction in the perception of washing machine malodor. A medium level of washing machine malodor reduction is defined as 31% to 59% reduction in the perception of washing machine malodor. A high level of washing machine malodor reduction is defined as greater than or equal to 60% reduction in the perception of washing machine malodor. The minimum amount of a washing machine malodor counteracting ingredient required to achieve a low, medium, or high level of washing machine malodor reduction may be determined by a person of ordinary skill in the art using known methods.

[0136] In an exemplary method, a candidate ingredient is mixed into a liquid detergent base at various dosages. A mixed load of 10 cotton terry towels, 10 cotton t-shirts, 11 polyester t-shirts, and 10 polyester swatches are washed in a front-load washing machine as 40 °C for 1 hour and 24 minutes, and then spun at 1200 rpm. In a 24L plexiglass box equipped with a hanging wire, a pierced lid with a hatch, 1 cotton terry towel and 1 cotton t-shirt are placed at the bottom of the box and a polyester swatch having a washing machine malodor reconstitution applied to it is hung on the wire. The setup is allowed to equilibrate for an hour. Subsequently, an evaluator assesses the intensity of the malodor alone (intensity is defined at 6 but the evaluator can modulate his / her assessment) then each candidate ingredient is assessed according to malodor intensity and overall intensity on a scale from 0 to 10. The malodor intensity is then averaged by candidate and malodor reduction score is calculated, malodor alone being 100%.

[0137] The minimum amount of some exemplary washing machine malodor counteracting ingredients required to achieve a low, medium, or high level of washing machine malodor reduction are shown below in Table 1 . Values are expressed as weight percent relative to the total weight of the composition unless otherwise noted.

[0138] Table 1.

[0139] In an embodiment, at least one of the washing machine malodor counteracting ingredients is present in an amount greater than or equal to the minimum amount effective to achieve 31 to 59% malodor reduction. In another embodiment, at least two of the washing machine malodor counteracting ingredients are each present in an amount greater than or equal to the minimum amount effective to achieve 31 to 59% malodor reduction. In yet another embodiment, at least 3 of the washing machine malodor counteracting ingredients are each present in an amount greater than or equal to the minimum amount effective to achieve 31 to 59% malodor reduction. In some embodiments, at least 4, at least 5, at least 6, at least 7, at least 8, at least 9, or at least 10 of the washing machine malodor counteracting ingredients are each present in an amount greater than or equal to the minimum amount effective to achieve 31 to 59% malodor reduction.

[0140] In an embodiment, 1 to 20, typically 1 to 15, more typically 1 to 10, of the washing machine malodor counteracting ingredients are each present in an amount greater than or equal to the minimum amount effective to achieve 31 to 59% malodor reduction. In an embodiment, 3 to 10 of the washing machine malodor counteracting ingredients are each present in an amount greater than or equal to the minimum amount effective to achieve 31 to 59% malodor reduction. In some embodiments, the washing machine malodor counteracting ingredients are each present in an amount greater than or equal to the minimum amount effective to achieve 31 to 59% malodor reduction, but less than the minimum amount effective to achieve 60% or more malodor reduction.

[0141] In an embodiment, at least one of the washing machine malodor counteracting ingredients is present in an amount greater than or equal to the minimum amount effective to achieve 31 to 59% malodor reduction, but less than the minimum amount effective to achieve 60% or more malodor reduction. In another embodiment, at least two of the washing machine malodor counteracting ingredients are each present in an amount greater than or equal to the minimum amount effective to achieve 31 to 59% malodor reduction, but less than the minimum amount effective to achieve 60% or more malodor reduction. In yet another embodiment, at least 3 of the washing machine malodor counteracting ingredients are each present in an amount greater than or equal to the minimum amount effective to achieve 31 to 59% malodor reduction, but less than the minimum amount effective to achieve 60% or more malodor reduction. In some embodiments, at least 4, at least 5, at least 6, at least 7, at least 8, at least 9, or at least 10 of the washing machine malodor counteracting ingredients are each present in an amount greater than or equal to the minimum amount effective to achieve 31 to 59% malodor reduction, but less than the minimum amount effective to achieve 60% or more malodor reduction.

[0142] In an embodiment, 3 to 7 of the washing machine malodor counteracting ingredients are each present in an amount greater than or equal to the minimum amount effective to achieve 31 to 59% malodor reduction, but less than the minimum amount effective to achieve 60% or more malodor reduction.

[0143] In an embodiment, at least one of the washing machine malodor counteracting ingredients is present in an amount greater than or equal to the minimum amount effective to achieve greater than or equal to 60% malodor reduction. In another embodiment, at least two of the washing machine malodor counteracting ingredients are each present in an amount greater than or equal to the minimum amount effective to achieve greater than or equal to 60% malodor reduction. In yet another embodiment, at least three of the washing machine malodor counteracting ingredients are each present in an amount greater than or equal to the minimum amount effective to achieve greater than or equal to 60% malodor reduction.

[0144] In an embodiment, 1 to 20, typically 1 to 15, more typically 1 to 10, of the washing machine malodor counteracting ingredients are each present in an amount greater than or equal to the minimum amount effective to achieve greater than or equal to 60% malodor reduction. In an embodiment, 3 to 8 of the washing machine malodor counteracting ingredients are each present in an amount greater than or equal to the minimum amount effective to achieve greater than or equal to 60% malodor reduction. In the composition according to the present disclosure, it is contemplated that some of the washing machine malodor counteracting ingredients may be present in amounts greater than or equal to the minimum amount effective to achieve 30% or less malodor reduction, but less than the minimum amount effective to achieve 31 to 59% malodor reduction; some of the washing machine malodor counteracting ingredients may be present in amounts greater than or equal to the minimum amount effective to achieve 31 to 59% malodor reduction, but less than the minimum amount effective to achieve 60% or more malodor reduction; and some of the washing machine malodor counteracting ingredients may be present in amounts greater than or equal to the minimum amount effective to achieve 60% or more malodor reduction.

[0145] In an embodiment, the weight ratio of the washing machine malodor counteracting ingredients that are each present in an amount greater than or equal to the minimum amount effective to achieve 60% or more malodor reduction to the washing machine malodor counteracting ingredients that are each present in an amount greater than or equal to the minimum amount effective to achieve 31 to 59% malodor reduction, but less than the minimum amount effective to achieve 60% or more malodor reduction, is from 20:80 to 99:1 .

[0146] According to the composition of the present disclosure, the weighted average of the volatilities of the perfumery raw materials having a log P of at least 2.5 is at least 100 pg / L in air.

[0147] The weighted average of the volatilities of the perfumery raw materials, which may include the washing machine malodor counteracting ingredients, having a log P of at least 2.5 is determined according to methods known to those of ordinary skill in the art. For example, in one suitable method, the volatility of each perfumery raw material having a log P > 2.5 is multiplied by its dosage in the composition and then summed.

[0148] As used herein, the term “volatility” refers to a gas-phase saturation concentration and is a derived rather than a fundamental property, which can be either measured or calculated from the vapour pressures and can also be related to boiling points (for liquids) in a similar way that vapor pressures relate to boiling points. High vapor pressures indicate a high volatility, while high-boiling points indicate low volatility. Vapor pressures and boiling points are often presented in property tables and charts that can be used to compare chemicals of interest. Volatility is expressed in units of concentration such as micrograms of compound per liter of air and corresponds to the maximum concentration that an ingredient in its gaseous state can achieve at equilibrium at a given temperature with its liquid or solid phase in a closed system. Unless otherwise stated, volatility as used herein is expressed in units of pg / L in air.

[0149] As used herein the term “log P” refers to the common logarithm of estimated octanolwater partition coefficient, which is known as a measure of lipophilicity. The log P values of many perfuming ingredients have been reported, for example, in the Pomona92 database, available from Daylight Chemical Information Systems, Inc. (Daylight CIS), Irvine, Calif., which also contains citations to the original literature. Log P values are most conveniently calculated by the “C LOG P” program, also available from Daylight CIS. This program also lists experimental log P values when they are available in the Pomona92 database. The “calculated log P” (cLogP) is determined by the fragment approach of Hansch and Leo (cf., A. Leo, in Comprehensive Medicinal Chemistry, Vol. 4, C. Hansch, P. G. Sammens, J. B. Taylor and C. A. Ramsden, Eds., p. 295, Pergamon Press, 1990). The fragment approach is based on the chemical structure of each perfume oil ingredient and considers the numbers and types of atoms, the atom connectivity, and chemical bonding. Log P may also be calculated with ICAS 20 ProPred, based on the Marrero and Gani Model (J. Marrero and R. Gani, Group-contribution based estimation of pure component properties, Fluid Phase Equilibria 183-184 (2001) 183- 208). Table 2 below shows the log P and volatility of some exemplary perfumery raw materials.

[0150] Table 2.

[0151] In some embodiments, the weighted average of the volatilities of the perfumery raw materials having a log P of from 2.5 to 15, typically from 2.5 to 8, more typically 2.5 to 6, is from 100 to 10,000 pg / L, typically 300 to 3,000 pg / L, more typically 500 to 3,000 pg / L, in air. In an embodiment, the weighted average of the volatilities of the perfumery raw materials having a log P of from 3.5 to 8, typically 3.5 to 6, is from 100 to 10,000 pg / L, typically 300 to 3,000 pg / L, more typically 500 to 3,000 pg / L, in air.

[0152] The composition described herein may optionally comprise a perfumery solvent. A detailed description of the nature and type of solvents commonly used in perfumery, herein “perfumery solvent” cannot be exhaustive. However, exemplary solvents include, but are not limited to, solvents such as glycerol, dipropylene glycol and its monoether, 1 ,2,3-propanetriyl triacetate, dimethyl glutarate, dimethyl adipate 1 ,3-diacetyloxypropan-2-yl acetate, diethyl phthalate, isopropyl myristate, Abalyn® (rosin resins, available from Eastman), benzyl benzoate, benzyl alcohol, 2-(2-ethoxyethoxy)-1 -ethanol, tri-ethyl citrate or mixtures thereof. Naturally derived solvents, like glycerol or various vegetable oils such as palm oil, sunflower oil or linseed oil, may also be used. Other non-limiting perfumery solvents include limonene or other terpenes, isoparaffins such as those known under the trademark Isopar® (origin: Exxon Chemical) or glycol ethers and glycol ether esters such as those known under the trademark Dowanol® (origin: Dow Chemical Company), or hydrogenated castors oils such as those known under the trademark Cremophor® RH 40 (origin: BASF).

[0153] The amount of the perfumery solvent is not particularly limited. However, in some embodiments, the perfumery solvent is present in an amount from 0% to 50%, typically 0.1 % to 15%, more typically 0.2% to 10%, by weight relative to the total weight of the composition.

[0154] The composition may optionally comprise a fragrance modulator.

[0155] Fragrance modulators, also known as fixatives, are agents having the capacity to affect the manner in which the odor, and in particular the evaporation rate and intensity, of the compositions incorporating said modulator can be perceived by an observer or user thereof, over time, as compared to the same perception in the absence of the modulator. In particular, the modulator allows prolonging the time during which their fragrance is perceived.

[0156] Examples of fragrance modulators suitable for use according to the present disclosure include, but are not limited to, caprylyl alcohol, octanol, butyloctanol, isotridecyl alcohol, hexyldecanol, isostearyl alcohol, octyldecanol, octyldodecanol, decyltetradecanol, tetradecyloctadecanol, PPG-20 methyl glucose ether, methyl glucoside polyol; ethyl glucoside polyol; propyl glucoside polyol; isocetyl alcohol; PPG-3 myristyl ether; neopentyl glycol diethylhexanoate; sucrose laurate; sucrose dilaurate, sucrose myristate, sucrose palmitate, sucrose stearate, sucrose distearate, sucrose tristearate, hyaluronic acid disaccharide sodium salt, sodium hyaluronate, propylene glycol propyl ether; dicetyl ether; polyglycerin-4 ethers; isoceteth-5; isoceteth-7, isoceteth-10; isoceteth-12; isoceteth-15; isoceteth-20; isoceteth-25; isoceteth-30; disodium lauroamphodipropionate; hexaethylene glycol monododecyl ether; and their mixtures; neopentyl glycol diisononanoate; cetearyl ethylhexanoate; panthenol ethyl ether, DL-panthenol, N-hexadecyl n-nonanoate, noctadecyl n-nonanoate, a profragrance, cyclodextrin, an encapsulation, and any combination thereof.

[0157] The compositions described herein may comprise a solid carrier. The composition or elements of the composition can be chemically or physically bound. In general, such solid carriers are employed either to stabilize the composition, or to control the rate of evaporation of the compositions or of some ingredients. Solid carriers are of current use in the art and a person skilled in the art knows how to reach the desired effect. Suitable solid carriers include, but are not limited to, absorbing gums or polymers or inorganic materials, such as porous polymers, cyclodextrines, dextrines, maltodextrines wood-based materials, organic or inorganic gels, clays, gypsum talc or zeolites.

[0158] Other suitable solid carriers include encapsulating materials. Examples of such materials may comprise wall-forming and plasticizing materials, such as glucose syrups, natural or modified starches, hydrocolloids, cellulose derivatives, polyvinyl acetates, polyvinylalcohols, proteins or pectins, plant gums such as acacia gum (Gum Arabic), urea, sodium chloride, sodium sulphate, zeolite, sodium carbonate, sodium bicarbonate, clay, talc, calcium carbonate, magnesium sulfate, gypsum, calcium sulfate, magnesium oxide, zinc oxide, titanium dioxide, calcium chloride, potassium chloride, magnesium chloride, zinc chloride, carbohydrates, saccharides such as sucrose, mono-, di-, and polysaccharides and derivatives such as chitosan, starch, cellulose, carboxymethyl methylcellulose, methylcellulose, hydroxyethyl cellulose, ethyl cellulose, propyl cellulose, polyols / sugar alcohols such as sorbitol, maltitol, xylitol, erythritol, and isomalt, polyethylene glycol (PEG), polyvinyl pyrrolidin (PVP), polyvinyl alcohol, acrylamides, acrylates, polyacrylic acid and related, maleic anhydride copolymers, amine-functional polymers, vinyl ethers, styrenes, polystyrenesulfonates, vinyl acids, ethylene glycol-propylene glycol block copolymers, vegetable gums, gum acacia, pectins, xanthanes, alginates, carragenans, citric acid or any water soluble solid acid, fatty alcohols or fatty acids and mixtures thereof.

[0159] Other suitable encapsulating materials are described in reference texts known to those of skill in the art, such as H. Scherz, Hydrokolloide: Stabilisatoren, Dickungs- und Geliermittel in Lebensmitteln, Band 2 der Schriftenreihe Lebensmittelchemie, Lebensmittelqualitat, Behr's Verlag GmbH & Co., Hamburg, 1996. The encapsulation is a well-known process to a person skilled in the art, and may be performed, for instance, by using techniques such as spraydrying, agglomeration or yet extrusion; or consists of a coating encapsulation, including coacervation and complex coacervation techniques.

[0160] Other exemplary solid carriers include core-shell capsules with resins of aminoplast, polyamide, polyester, polyurea or polyurethane type, and mixtures threof, made using techniques well-known to those of ordinary skill in the art, such as phase separation induced by polymerization, interfacial polymerization, coacervation, or a combination thereof, optionally in the presence of a polymeric stabilizer or of a cationic copolymer.

[0161] Resins may be produced by the polycondensation of an aldehyde (e.g., formaldehyde, 2,2-dimethoxyethanal, glyoxal, glyoxylic acid or glycolaldehyde, and mixtures thereof) with an amine such as urea, benzoguanamine, glycoluryl, melamine, methylol melamine, methylated methylol melamine, guanazole and the like, as well as mixtures thereof. Alternatively, one may use preformed resins like alkylolated polyamines such as those commercially available under the trademark Urac® (origin: Cytec Technology Corp.), Cymel® (origin: Cytec Technology Corp.), Urecoll® or Luracoll® (origin: BASF). Other suitable resins are the those produced by the polycondensation of a polyol, like glycerol, and a polyisocyanate, for example, a trimer of hexamethylene diisocyanate, a trimer of isophorone diisocyanate or xylylene diisocyanate or a Biuret of hexamethylene diisocyanate or a trimer of xylylene diisocyanate with trimethylolpropane (marketed as Takenate® by Mitsui Chemicals), among which a trimer of xylylene diisocyanate with trimethylolpropane and a Biuret of hexamethylene diisocyanate are of mention.

[0162] The encapsulation of perfumes by polycondensation of amino resins, namely melamine- based resins with aldehydes is well-known in the art. Pertinent publications include, but are not limited to, K. Dietrich et al. Acta Polymerica, 1989, vol. 40, pages 243, 325 and 683, as well as 1990, vol. 41 , page 91 and US Patent No. 4,396,670 issued August 2, 1983. The general knowledge in encapsulation technology is very significant and cannot be exhaustive. More recent publications of pertinence, which disclose suitable uses of such microcapsules, are represented, for example, by the article of K. Bruyninckx and M. Dusselier, ACS Sustainable Chemistry & Engineering, 2019, vol. 7, pages 8041-8054. These publications are incorporated herein by reference.

[0163] The compositions described herein may optionally comprise at least one perfumery adjuvant.

[0164] The at least one perfumery adjuvant is an ingredient capable of imparting an additional added benefit such as a color, a particular light resistance, chemical stability, etc. A detailed description of the nature and type of adjuvant commonly used in perfuming compositions cannot be exhaustive, but it has to be mentioned that said ingredients are well known to a person skilled in the art.

[0165] Exemplary perfumery adjuvants include, but are not limited to, viscosity agents (e.g., surfactants, thickeners, gelling and / or rheology modifiers), stabilizing agents (e.g., preservatives, antioxidant, heat / light and or buffers or chelating agents, such as BHT), coloring agents (e.g., dyes and / or pigments), preservatives (e.g. antibacterial or antimicrobial or antifungal or anti irritant agents), abrasives, skin cooling agents, insect repellants, ointments, vitamins and mixtures thereof.

[0166] In some embodiments, the compositions of the present disclosure may further comprise at least one other malodor control (MOC) compound. As used herein, the term "other MOC compound" refers to a material which is already known to provide MOC activity and is commonly used in the industry for such use. The at least one other MOC compound can be included to further boost, or complement, the MOC activity of the compositions of the present disclosure.

[0167] Non-limiting examples of an other MOC compound include antimicrobial agents, malodor absorbers, chemical neutralizers, e.g. acid-base reagents, thiol traps, odor blockers, cross-adaptation agents, such as those disclosed in U.S. Patent No. 5,538,719, which is incorporated herein by reference, and malodor complexation agents, e.g. cyclodextrins.

[0168] Examples of antimicrobial agents include, but are not limited to, metal salts such as zinc citrate, zinc oxide, zinc pyrethiones, and octopirox; organic acids, such as sorbic acid, benzoic acid, and their salts; parabens, such as methyl paraben, propyl paraben, butyl paraben, ethyl paraben, isopropyl paraben, isobutyl paraben, benzyl paraben, and their salts; alcohols, such as benzyl alcohol, phenyl ethyl alcohol; boric acid; 2,4,4'-trichloro-2-hydroxy-diphenyl ether; phenolic compounds, such as phenol, 2-methyl phenol, 4-ethyl phenol; essential oils such as rosemary, thyme, lavender, eugenol, geranium, tea tree, clove, lemon grass, peppermint, or their active components such as anethole, thymol, eucalyptol, farnesol, menthol, limonene, methyl salicylate, salicylic acid, terpineol, nerolidol, geraniol, and mixtures thereof.

[0169] Examples of malodor absorbers include, but are not limited to, molecular sieves, such as zeolites, silicas, aluminosilcates, and cyclodextrins; and organic absorbents, such as, for example, activated charcoal, dried citrus pulp, cherry pit extract, corncob, and mixtures thereof.

[0170] The compositions according to the present disclosure may be prepared according to any method known to those of ordinary skill in the art. The ordinarily skilled artisan is perfectly able to design optimal formulations for the desired effect by admixing the above-mentioned components to arrive at the desired composition by applying standard knowledge and concepts known to those of ordinary skill and by utilizing routine optimization methodologies.

[0171] The compositions according to the present disclosure may be used in combination with a delivery system. For instance, the composition or some elements of the composition may be encapsulated or the composition may further comprise a delivery system. Suitable delivery systems for the purpose of the present disclosure include but are not limited to:

[0172] • Passive plating supports comprising one or more of the following porous or non-porous substrates in loose powder or compacted form chosen from the following non-limiting examples: cellulose (paper / cardboard), vermiculite, other industrial absorbents, perlite, calcium carbonate, pumice, other minerals, wood, sawdust, ground corn cob, ground rice hull, rice hull ash, other agricultural by-products, biochars, starches, modified starches;

[0173] • Spray-dried moisture-activated encapsulation systems wherein the compositions according to the present disclosure are encapsulated by a spray drying process within a matrix containing but not limited to one or more of the following: maltodextrin, octenyl succinated starch (modified starch);

[0174] • Core-shell encapsulation systems, such as mechanically activated microcapsules with an impermeable shell (for example, polyurea, polyurethane, and others) and composition according to the present disclosure in the core;

[0175] • Liquid mixtures containing surfactants; or Polymeric materials.

[0176] The compositions according to the present disclosure may be combined with encapsulating materials such as polymers to form microcapsules or microparticles, or materials to form liquid delivery system for the composition such as an emulsion, a microemulsion, a miniemulsion, a gel, a microgel, an anhydrous gel or a dispersion.

[0177] In some embodiments, the compositions may be absorbed on a porous or non-porous substrate in loose powder or compacted form, the substrate being selected from cellulose (paper / card board), vermiculite, other industrial absorbents, perlite, calcium carbonate, pumice, wood, sawdust, ground corn cob, ground rice hull, rice hull ash, biochars, starches, modified starches, and mixtures thereof.

[0178] In the second aspect, the present disclosure relates to a consumer product comprising the composition described herein.

[0179] Non-limiting examples of consumer products according to the present invention include, but are not limited to:

[0180] • a fabric care product, such as a liquid detergent, a powder detergent, detergent tablets, a detergent bar, a detergent paste, soluble detergent sheet, a detergent pouch, a liquid fabric softener, fabric softener sheets, a fabric scent booster, a laundry pre-treatment, a fabric refresher, an ironing water, a laundry bleach, a carpet powder or a carpet cleaner;

[0181] • an air freshening product, such as an air freshener spray, a gel air freshener, a liquidwick air freshener, a solid air freshener comprising a porous substrate (such as a paper or card blotter, a porous ceramic, or a porous plastic), a liquid or gel air freshener comprising a permeable membrane, an electrically operated air freshener, and a dual purpose air freshener / disinfectant spray.

[0182] In an embodiment, the consumer product is a fabric care product, typically a liquid detergent, a powder detergent, detergent tablets, a detergent bar, a detergent paste, soluble detergent sheet, a liquid fabric softener, fabric softener sheets, a fabric scent booster, a laundry pre-treatment, a fabric refresher, a fabric stain remover, an ironing water, a laundry bleach, a carpet powder or a carpet cleaner.

[0183] In some embodiments, the consumer product comprises from 0.1 % to 85% by weight of the composition, relative to the total weight of the consumer product. In some embodiments, the consumer product comprises from 0.1% to 15%, typically 0.1 % to 7%, more typically 0.1% to 5%, by weight of the composition, relative to the total weight of the consumer product. In some embodiments, the consumer product comprises from 0.1 % to 2%, typically 0.1 % to 0.5%, more typically 0.1 % to 0.3%, by weight of the composition, relative to the total weight of the consumer product. In some embodiments, the consumer product comprises from 0.5% to 15%, typically 0.5% to 7%, more typically 0.5% to 5%, by weight of the composition, relative to the total weight of the consumer product. In some embodiments, the consumer product comprises from 0.5% to 2% by weight of the composition, relative to the total weight of the consumer product.

[0184] In some embodiments, the consumer product comprises from 30% to 85%, typically 30% to 70%, more typically 30% to 60%, by weight of the composition, relative to the total weight of the consumer product. In some embodiments, the consumer product comprises from 40% to 85%, typically 40% to 70%, more typically 40% to 60%, by weight of the composition, relative to the total weight of the consumer product.

[0185] In the third aspect, the present disclosure relates to a method for reducing, preventing, or inhibiting the perception of washing machine malodor in air or on a surface, typically a textile, the method comprising: dispensing the composition or consumer product described herein into the air or contacting the surface with the composition or consumer product described herein.

[0186] Dispensing or dispersion of the composition or consumer product described herein into the air may be achieved by any method readily selected by one of ordinary skill in the art. Examples include, but are not limited to, a spray, a nebulizer, evaporation of a solution containing the composition or consumer product, and the like. Generally, dispensing or dispersion of the composition or consumer product described herein into a volume of air, often in need thereof, results in dosing a subject with an amount of the composition described herein effective to reduce the perception of washing machine malodor.

[0187] Contacting the surface with the composition or consumer product described herein may be achieved by any method readily selected by one of ordinary skill in the art. Examples include, but are not limited to, spraying the surface, wiping the surface, washing the surface, rinsing the surface, and the like, with the composition or consumer product containing the composition. Generally, contacting the surface, often in need thereof, with the composition or consumer product described herein results in dosing a subject with an amount of the composition described herein effective to reduce the perception of washing machine malodor.

[0188] Dispensing or dispersion of the composition or consumer product described herein into a volume of air, often in need thereof, or contacting the surface, often in need thereof, with the composition or consumer product described herein results in dosing a subject with an amount of the composition described herein effective to reduce the perception of washing machine malodor, the method disclosed herein is non-therapeutic. That is to say, the method of the present disclosure, including compounds, compositions comprising the said compounds, and consumer products comprising the said compositions, is not used for treating or curing any disease, but to block or ameliorate the perception of malodor when a subject is in the presence of such malodor. In an embodiment, the surface is a textile, typically clothing. The textile material is not particularly limited. However, in an embodiment, the textile comprising cotton and / or polyester.

[0189] In the fourth aspect, mention may be made of the use of a composition for reducing, preventing, or inhibiting the perception of washing machine malodor, the composition comprising a plurality of perfumery raw materials, wherein the weighted average of the volatilities of the perfumery raw materials having a log P of at least 2.5 is at least 100 pg / L in air, typically 300 to 3,000 pg / L, more typically 500 to 3,000 pg / L, and wherein 3 or more of the perfumery raw materials are washing machine malodor counteracting ingredients.

[0190] The compositions, methods, and uses according to the present disclosure are further illustrated by the following non-limiting examples.

[0191] Example 1. Exemplary compositions

[0192] Exemplary composition A

[0193] Exemplary composition A comprises a plurality of perfumery raw materials, wherein the weighted average of the volatilities of the perfumery raw materials having a log P of at least 2.5 is about 6206 pg / L in air, and 3 or more of the perfumery raw materials are washing machine malodor counteracting ingredients. Ten of the washing machine malodor counteracting ingredients are in amounts that equal or exceed the minimum amount effective to achieve at least a medium level (31 to 59%) of malodor reduction as defined herein.

[0194] Exemplary composition B

[0195] Exemplary composition B comprises a plurality of perfumery raw materials, wherein the weighted average of the volatilities of the perfumery raw materials having a log P of at least 2.5 is about 176 pg / L in air, and 3 or more of the perfumery raw materials are washing machine malodor counteracting ingredients. Seven of the washing machine malodor counteracting ingredients are in amounts that equal or exceed the minimum amount effective to achieve at least a medium level (31 to 59%) of malodor reduction as defined herein.

[0196] Exemplary composition C

[0197] Exemplary composition C comprises a plurality of perfumery raw materials, wherein the weighted average of the volatilities of the perfumery raw materials having a log P of at least 2.5 is about 544 pg / L in air, and 3 or more of the perfumery raw materials are washing machine malodor counteracting ingredients. Three of the washing machine malodor counteracting ingredients are in amounts that equal or exceed the minimum amount effective to achieve at least a medium level (31 to 59%) of malodor reduction as defined herein. Example 2. Evaluation of inventive compositions

[0198] The exemplary compositions A-C as described in Example 1 were evaluated for their ability to reduce washing machine malodor. Each composition was mixed into a liquid detergent base at the indicated dosage. A 2.2 kg mixed load (30% synthetic, 70% ccotton) were washed in a front-load washing machine as 40 °C for 1 hour and 14 minutes, and then spun at 1200 rpm. In a 24L plexiglass box equipped with a hanging wire, a pierced lid with a hatch, 1 cotton terry towel and 1 cotton t-shirt were placed at the bottom of the box and a polyester swatch having a washing machine malodor reconstitution applied to it is hung on the wire. The setup was allowed to equilibrate for an hour. Subsequently, panelists assessed the intensity of the malodor alone as reference (set at 7 on a 10-point scale) then each sample was assessed according for malodor intensity in blind, balanced order across panelists. Overall intensity was rated on a scale from 0 to 10 by each evaluator. 2 minutes of breaking time was allowed between samples. The malodor intensity was then averaged for each composition evaluated and malodor reduction score was calculated, malodor alone being 100%. Comparative composition C1 , which comprises a plurality of perfumery raw materials, wherein the weighted average of the volatilities of the perfumery raw materials having a log P of at least 2.5 is about 123 pg / L in air, and 3 or more of the perfumery raw materials are washing machine malodor counteracting ingredients, was used. Only two of the washing machine malodor counteracting ingredients are in amounts that equal or exceed the minimum amount effective to achieve at least a medium level (31 to 59%) of malodor reduction as defined herein.

[0199] Comparative composition C1

[0200] The results of the evaluation is summarized in Table 3 below.

[0201] Table 3.

[0202] Example 3. Evaluation of additional inventive compositions

[0203] Further compositions (Examples D and E) were tested according to the procedure described in Example 2. The results are summarized in Table 4 below. Table 4.

[0204] Example 4. Comparison with commercial product

[0205] Exemplary composition A was compared to a commercial product SKIP® Active Clean using the same procedure described in Example 2, except that Exemplary composition A was incorporated at 0.5 % into the liquid detergent base. The use of 50 g of SKIP® Active Clean was compared to the use of 50 g of the inventive liquid detergent.

[0206] The malodor reduction for exemplary composition A was 67% versus 41% for SKIP® Active Clean. The malodor intensity was perceived as significantly lower (p=0.3%) when the liquid detergent containing exemplary composition A was used compared to when the commercial product was used.

[0207] The disclosed subject matter has been described with reference to specific details of particular embodiments thereof. It is not intended that such details be regarded as limitations upon the scope of the disclosed subject matter except insofar as and to the extent that they are included in the accompanying claims.

[0208] Therefore, the exemplary embodiments described herein are well adapted to attain the ends and advantages mentioned as well as those that are inherent therein. The particular embodiments disclosed above are illustrative only, as the exemplary embodiments described herein may be modified and practiced in different but equivalent manners apparent to those of ordinary skill in the art having the benefit of the teachings herein. Furthermore, no limitations are intended to the details of construction or design herein shown, other than as described in the claims below. It is therefore evident that the particular illustrative embodiments disclosed above may be altered, combined, or modified and all such variations are considered within the scope and spirit of the exemplary embodiments described herein. The exemplary embodiments described herein illustratively disclosed herein suitably may be practiced in the absence of any element that is not specifically disclosed herein and / or any optional element disclosed herein.

Claims

WHAT IS CLAIMED IS:1 . A composition for reducing, preventing, or inhibiting a perception of washing machine malodor, the composition comprising a plurality of perfumery raw materials, wherein the weighted average of the volatilities of the perfumery raw materials having a log P of at least 2.5 is at least 100 pg / L in air, and wherein 3 or more of the perfumery raw materials are washing machine malodor counteracting ingredients.

2. The composition according to claim 1 , wherein the plurality of perfumery raw materials comprises from 3 to 200, typically 3 to 100, more typically 3 to 50, perfumery raw materials.

3. The composition according to claim 1 or 2, wherein 3 to 20, typically 3 to 15, more typically 3 to 10, of the perfumery raw materials are washing machine malodor counteracting ingredients.

4. The composition according to any one of claims 1 to 3, wherein the washing machine malodor counteracting ingredients are selected from the group consisting of: cis-4-(2-methyl-2-propanyl)cyclohexyl acetate, trans-4-(2-methyl-2-propanyl)cyclohexyl acetate,(2E)-2-benzylideneoctanal, (+-)-tetrahydro-2-isobutyl-4-methyl-4(2H)-pyranol, 1-((2RS,3RS)-2,3,8,8-tetramethyl-1 ,2,3,4,5,6,7,8-octahydronaphthalen-2-yl)ethenone, 1-[(2RS,3RS,8aRS)-2,3,8,8-tetramethyl-1 ,2,3,5,6,7,8,8a-octahydro-2- naphthalenyl]ethenone,1-[(2RS,3RS,8aRS)-2,3,8,8-tetramethyl-1 ,2,3,4,6,7,8,8a-octahydro-2- naphthalenyl]ethenone,(+-)-2,6-dimethyl-7-octen-2-ol,2-phenylethanol, (+)-limonene, methyl 2-((1 RS,2RS)-3-oxo-2-pentylcyclopentyl)acetate, diethyl cis- 1 ,4-cyclohexanedicarboxylate, diethyl trans-1 ,4-cyclohexanedicarboxylate, (+-)-3,7-dimethyl-6-octen-1-ol, (+-)-5-heptyldihydro-2(3H)-furanone, (+-)-3,7-dimethyl-1 ,6-octadien-3-ol, (+-)-ethyl 2-methylpentanoate,(1 RS, 2RS)-2,4-dimethyl-3-cyclohexene-1 -carbaldehyde,(1 RS, 2SR)-2,4-dimethyl-3-cyclohexene-1 -carbaldehyde, allyl (3-methylbutoxy)acetate,(+-)-allyl (2-methylbutoxy)acetate,(+-)-2-methylundecanal,Dodecanal,Decanal,(3aRS,5aSR,9aSR,9bRS)-3a,6,6,9a-tetramethyldodecahydronaphtho[2,1-b]furan, tricyclo[5.2.1 ,0~2,6~]dec-3-en-8-yl acetate, tricyclo[5.2.1 ,0~2,6~]dec-4-en-8-yl acetate,1 ,1 '-oxydibenzene,(+-)-ethyl 2-methylbutanoate,2-methylbutyl salicylate, pentyl salicylate, hexyl 2-hydroxybenzoate,(+-)-3,7-dimethyl-3-octanol,(1 RS,2RS)-2-(2-methyl-2-propanyl)cyclohexyl acetate,(1 RS,2SR)-2-(2-methyl-2-propanyl)cyclohexyl acetate,2-methoxynaphthalene, octanal, nonanal, undecanal,(2Z)-3,7-dimethyl-2,6-octadienal,(2E)-3,7-dimethyl-2,6-octadienal,1-oxa-12-cyclohexadecen-2-one,1-oxa-13-cyclohexadecen-2-one,(E)-3,7-dimethyl-2,6-octadien-1-ol,(+-)-(3E)-3-methyl-4-(2,6,6-trimethyl-2-cyclohexen-1-yl)-3-buten-2-one,(+-)-(1 E)-1-(2,6,6-trimethyl-2-cyclohexen-1-yl)-1-penten-3-one, (+-)-4,6,6,7,8,8-hexamethyl-1 ,3,4,6,7,8-hexahydrocyclopenta[g]isochromene.(+-)-(4E)-3-methyl-4-cyclopentadecen-1-one,(+-)-(5E)-3-methyl-5-cyclopentadecen-1-one,(+-)-(5Z)-3-methyl-5-cyclopentadecen-1-one,(E)-2-pentyl-3-phenyl-2-propenal,(-)-propyl (2S)-2-[(2-methyl-2-butanyl)oxy]propanoate,(+-)-2, 2, 2-trichloro-1 -phenylethyl acetate,1-(5,5-dimethyl-1-cyclohexen-1-yl)-4-penten-1-one,4-methoxybenzaldehyde,(2E)-1-[(1 RS,2SR)-2,6,6-trimethyl-3-cyclohexen-1-yl]-2-buten-1-one,1 ,3,3-trimethyl-2-oxabicyclo[2.2.2]octane,(+-)-(E)-4-methyl-3-decen-5-ol, benzyl acetate,2-chromenone,(3E)-4-(2,6,6-trimethyl-1 -cyclohexen-1 -yl)-3-buten-2-one,1-[(1 RS,2RS)-1 ,2,8,8-tetramethyl-1 ,2,3,4,5,6,7,8-octahydro-2-naphthalenyl]ethenone,1-((2RS,3RS)-2,3,8,8-tetramethyl-1 ,2,3,4,5,6,7,8-octahydronaphthalen-2-yl)ethenone,1-[(2RS,3RS,8aRS)-2,3,8,8-tetramethyl-1 ,2,3,5,6,7,8,8a-octahydro-2- naphthalenyl]ethenone,1-[(1RS,2RS,8aSR)-1 ,2,8,8-tetramethyl-1 ,2,3,5,6,7,8,8a-octahydro-2- naphthalenyl]ethenone,1-[(2RS,3RS,8aRS)-2,3,8,8-tetramethyl-1 ,2,3,4,6,7,8,8a-octahydro-2- naphthalenyl]ethenone,(+-)-(2,5-dimethyl-2,3-dihydro-1 H-inden-2-yl)methanol,10-undecenal,(9E)-9-undecenal,(9Z)-9-undecenal,(+-)-3-(4-isopropylphenyl)-2-methylpropanal,(-)-(2E)-2-ethyl-4-[(1 R)-2,2,3-trimethyl-3-cyclopenten-1-yl]-2-buten-1-ol,(+-)-1 -phenylethyl acetate, cyclohexylidene(phenyl)acetonitrile, methyl 2-aminobenzoate,(+-)-2,6-dimethyl-5-heptenal,(+-)-3-(3-isopropyl-1-phenyl)butanal,(+)-(3S)-3-[(1 R)-4-methyl-3-cyclohexen-1-yl]butanal (A) + (+)-(3R)-3-[(1 R)-4-methyl-3- cyclohexen-1 -yl]butanal,(+)-2-{(1 S)-1 -[(1 R)-3,3-dimethylcyclohexyl]ethoxy}-2-methylpropyl propionate, neryl acetate, geranyl acetate,(2Z)-2-phenyl-2-hexenenitrile, methyl 2,4-dihydroxy-3,6-dimethylbenzoate,1-decen-4-yne,9-decen-1-ol,3-(4,4-dimethyl-1 -cyclohexen-1 -yl)propanal,(Z)-3-hexenyl acetate,3-(4-ethylphenyl)-2,2-dimethylpropanal 3-(2-ethylphenyl)-2,2-dimethylpropanal, (2RS,4SR)-4-methyl-2-(2-methyl-1 -propen- 1-yl)tetrahydro-2H-pyran, (2RS,4RS)-4-methyl-2-(2-methyl-1 -propen- 1-yl)tetrahydro-2H-pyran, (1 R,2R)-1 ,7,7-trimethyl-bicyclo[2.2.1]hept-2-yl acetate, (1 S,2S,4S)-1 ,7,7-trimethylbicyclo[2.2.1]heptan-2-ol, (1 S,2R,4S)-1 ,7,7-trimethylbicyclo[2.2.1]heptan-2-ol, (3R)-1-[(1 R,6S)-2,2,6-trimethylcyclohexyl]-3-hexanol, (3S)-1-[(1 R,6S)-2,2,6-trimethylcyclohexyl]-3-hexanol, 1-[(1S,6S)-2,2,6-trimethylcyclohexyl]-3-hexanol, and any combination thereof.

5. The composition according to any one of claims 1 to 4, wherein at least one, at least two, or at least 3 of the washing machine malodor counteracting ingredients is present in an amount greater than or equal to the minimum amount effective to achieve 31 to 59% malodor reduction.

6. The composition according to any one of claims 1 to 5, wherein at least one, at least two, or at least 3 of the washing machine malodor counteracting ingredients is present in an amount greater than or equal to the minimum amount effective to achieve greater than or equal to 60% malodor reduction.

7. The composition according to any one of claims 1 to 6, wherein the weight ratio of the washing machine malodor counteracting ingredients that are each present in an amount greater than or equal to the minimum amount effective to achieve 60% or more malodor reduction to the washing machine malodor counteracting ingredients that are each present in an amount greater than or equal to the minimum amount effective to achieve 31 to 59% malodor reduction, but less than the minimum amount effective to achieve 60% or more malodor reduction, is from 20:80 to 99:1 .

8. The composition according to any one of claims 1 to 7, wherein the weighted average of the volatilities of the perfumery raw materials having a log P of from 2.5 to 15, typically from 2.5 to 8, more typically 2.5 to 6, is from 100 to 10,000 pg / L, typically 300 to 3,000 pg / L, more typically 500 to 3,000 pg / L, in air.

9. The composition according to any one of claims 1 to 8, wherein the weighted average of the volatilities of the perfumery raw materials having a log P of from 3.5 to 8,typically 3.5 to 6, is from 100 to 10,000 pg / L, typically 300 to 3,000 pg / L, more typically 500 to 3,000 pg / L, in air.

10. A consumer product comprising the composition according to any one of claims 1 to 9.11 . The consumer product according to claim 10, wherein the consumer product comprises from 0.1 % to 85%, typically 0.1 % to 15%, more typically 0.5% to 5%, by weight of the composition, relative to the total weight of the consumer product.

12. The consumer product according to claim 10 or 11 , wherein the consumer product is a fabric care product, typically a liquid detergent, a powder detergent, detergent tablets, a detergent bar, a detergent paste, soluble detergent sheet, a liquid fabric softener, fabric softener sheets, a fabric scent booster, a laundry pre-treatment, a fabric refresher, a fabric stain remover, an ironing water, a laundry bleach, a carpet powder or a carpet cleaner.

13. A method for reducing, preventing, or inhibiting a perception of washing machine malodor in air or on a surface, typically textile, the method comprising: dispensing the composition according to any one of claims 1 to 9 or a consumer product according to any one of claims 10 to 12 into the air or contacting the surface with a composition according to any one of claims 1 to 9 or a consumer product according to any one of claims 10 to 12.

14. The method according to claim 13, wherein the surface is a textile, typically a textile comprising cotton and / or polyester.

15. Use of a composition for reducing, preventing, or inhibiting a perception of washing machine malodor, the composition comprising a plurality of perfumery raw materials, wherein the weighted average of the volatilities of the perfumery raw materials having a log P of at least 2.5 is at least 100 pg / L in air, typically 300 to 3,000 pg / L, more typically 500 to 3,000 pg / L, and wherein 3 or more of the perfumery raw materials are washing machine malodor counteracting ingredients.

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