PROCESS TO REDUCE BAD ODORS IN FABRICS

Abstract

The present invention relates to a process for reducing bad odors in fabrics using a detergent composition containing an antioxidant and the use of said antioxidant and said process.

Description

PROCESS TO REDUCE BAD ODORS IN FABRICS FIELD OF INVENTION The present invention relates to a process for reducing bad odors in fabrics using a detergent composition containing an antioxidant and the use of said antioxidant and said process. BACKGROUND OF THE INVENTION Laundry processes are designed to remove dirt from fabrics. Some dirt can cause unpleasant odors in fabrics, and in some cases, these odors can persist even after the laundry process is complete. Therefore, there is a constant need for processes to reduce bad odors in fabrics. Surprisingly, it was discovered that the process according to the present invention provided a reduced bad odor in fabrics. Without wishing to be limited by theory, it is believed that it is the combination of the specific choice of antioxidant according to the present invention in combination with a metallic bond that provides the benefit of reduced bad odor in fabrics through washing. BRIEF DESCRIPTION OF THE INVENTION A first aspect of the present invention is a process for reducing bad odors in fabrics, comprising the steps of; a. Combining fabrics with a washing liquor, wherein the fabrics comprise at least one source of bad odor and wherein the washing liquor comprises a source of metal ions, preferably Cu2+ and wherein the washing liquor is prepared by diluting a laundry detergent composition in water by a factor of between 100 and 3000 times, preferably between 300 and 900 times; b. Wash the fabrics in the washing liquor using an automatic washing operation, a manual washing operation, or a mixture of these, preferably an automatic washing operation; c. Separate the fabrics and the washing liquor from each other; d. Dry the fabrics; frnfienn / zznz / E / Yu wherein the laundry detergent composition comprises between 0.01% and 5% by weight of an antioxidant, wherein the antioxidant is an alkylated phenol. A second aspect of the present invention is the use of an antioxidant to reduce bad odor in fabrics, wherein the fabric comprises at least one source of bad odor and the antioxidant is a hindered phenol. A third aspect of the present invention is the use of a process according to the present invention for reducing bad odor in fabrics in a washing liquor, wherein the fabrics comprise at least one source of bad odor and wherein the washing liquor comprises a metallic ion, preferably Cu2+. BRIEF DESCRIPTION OF THE FIGURES Figure 1 is a water-soluble unit-dose article according to the present invention. frnArnn / zznz / E / Yii DETAILED DESCRIPTION OF THE INVENTION Process The present invention relates to a process for reducing bad odors in fabrics. A bad odor in the context of the present invention is an unwanted or undesirable odor in fabrics. Those skilled in the art will know the difference between an undesirable and a desirable odor. The process comprises the following stages; a. Combining fabrics with a washing liquor, wherein the fabrics comprise at least one source of malodor and wherein the washing liquor comprises a source of metal ions, preferably Cu2+, and wherein the washing liquor is prepared by diluting a laundry detergent composition in water by a factor of between 100 and 3000 times, preferably between 300 and 900 times. The fabric may be any suitable fabric. By fabric, it preferably refers to any textile or cloth comprising a network of natural or synthetic fibers. Those skilled in the art will have knowledge as to suitable fabrics. The fabric may be selected from cotton, polyester, cotton / polyester blends, polyamide, Lycra, rayon, or a mixture thereof. The fabric contains at least one source of odor. Those skilled in the art will be aware of the appropriate sources of the odor. Sources of odor could include the chemical breakdown products of bodily soil. The source of the odor may consist of bodily soil or its breakdown products, for example, 6-methyl-5-heptane-2-one, trans-2-heptanal, 3-methyl-2-butenal, decanoic acid, undecanoic acid, undecanal, or a mixture thereof. Those skilled in the technique will know how to prepare the laundry liquor. Without being limited by theory, simply adding laundry detergent to water will cause the detergent to dissolve and create the laundry liquor. The washing liquor can be created automatically in the drum of an automatic washing machine or it can be done in a manual washing operation. The laundry detergent composition may be comprised in a water-soluble unit-dose article, wherein the water-soluble unit-dose article comprises a water-soluble film. Without wishing to be limited to theory, the addition of the water-soluble unit-dose article to water will cause the water-soluble film to dissolve and release the laundry detergent composition into the water, creating the main wash liquor. Traditionally, when working in the drum of an automatic washing machine, the fabrics to be washed and the water-soluble unit-dose article are added to the drum, and the washing machine door is closed. The washing machine then automatically adds water to the drum to create the wash liquor. Preferably, the washing liquor comprises between 1 L and 64 L, preferably between 2 L and 32 L, more preferably between 3 L and 20 L of water. The composition of laundry detergent is described in more detail below. The washing liquor comprises a metal ion, preferably Cu2+. The metal ion may be present on the fabric before the fabric comes into contact with the washing liquor. The metal ion may be present at the source of the odor on the fabric before the fabric is combined with the washing liquor. The metal ion may be present in the washing liquor when it is combined with the fabric. If present in the washing liquor, the metal ion may also be present in the laundry detergent, the water, or a mixture of these. The water used to prepare the washing liquor may comprise between 10 ppb and 2000 ppb, preferably between 50 ppb and 100 ppb of the metal ion. Without wishing to be limited by theory, tap water comprises between 10 ppb and 2000 ppb, preferably between 50 ppb and 1000 ppb of Cu2+. The source of bad odor may comprise the metal ion at the point where the source of bad odor is applied to the fabric.Alternatively, the source of bad odor can be applied to the fabric, such as may occur during use when the fabric may be in contact with the user's skin, and the metal ion can be applied later. Preferably, the washing liquor comprises from 0.1 ppm to 100 ppm, preferably from 0.15 ppm to 50 ppm of the antioxidant. b. Wash the fabrics in the washing liquor using an automatic washing operation, a manual washing operation, or a mixture of these, preferably an automatic washing operation. Experts in the technique will know how to wash fabrics in an automatic washing operation, a manual washing operation, or a mixture of these. Preferably, the washing liquor is at a temperature between 5°C and 90°C, preferably between 10°C and 60°C, more preferably between 12°C and 45°C, most preferably between 15°C and 40°C. Preferably, washing fabrics in the washing liquor takes between 5 minutes and 50 minutes, preferably between 5 minutes and 40 minutes, with greater preference between 5 minutes and 30 minutes, with even greater preference between 5 minutes and 20 minutes, with the maximum preference between 6 minutes and 18 minutes to complete. Preferably, the washing liquor comprises between 1 kg and 20 kg, preferably between 3 kg and 15 kg, with the highest preference between 5 kg and 10 kg of the fabrics. The wash liquor may comprise water of any hardness, preferably ranging from 0 gpg to 40 gpg. Lower water hardness is called soft water, while higher water hardness is called hard water. c. Separate the fabrics and the washing liquor from each other. The fabrics and the washing solution are separated from each other after the fabrics have been washed. This separation may involve removing the fabrics from the washing solution or draining the washing solution from the fabrics. In an automatic washing machine operation, it is preferred that the washing solution be drained from the fabrics. To avoid any doubt, some of the washing solution may remain on the fabrics after the fabrics have been separated from the main volume of washing solution; that is, the fabrics remain damp. With respect to the present invention, the fabrics and the washing solution are considered to be separated from each other once the fabric has been separated from the main volume of washing solution or the main volume of washing solution has been drained, even though some residual washing solution may remain on the fabrics. d. Rinse the fabrics The method may include an additional step involving rinsing the fabrics with a liquid that may not contain detergent. This additional step can serve to remove any residual laundry liquor from the fabrics. The liquid used during the rinse step may be water. Alternatively, the liquid may be a combination of water with one or more additives, such as a fabric softener. e. Dry the fabrics. The method may include an additional step involving drying the fabrics. Those skilled in the art will know the appropriate means of drying the fabrics. Fabrics may be dried by any suitable means, including but not limited to: on a line (indoors or outdoors), at room temperature, in an automatic drying machine, or a combination of these. Those skilled in the art will know at what point the fabrics are considered dry rather than damp. Laundry detergent composition The process according to the present invention comprises the step of diluting a laundry detergent composition. The laundry detergent composition may be a powder, a liquid, a water-soluble unit dose article, or a mixture thereof, preferably a water-soluble unit dose comprising a liquid composition. The solid laundry detergent composition may comprise solid particles or may be a single homogeneous solid. Preferably, the solid laundry detergent composition comprises particles. This means that the solid laundry detergent composition comprises individual solid particles as opposed to a single homogeneous solid. The particles may be free-flowing or compacted; preferably, they may be free-flowing. The term 'liquid laundry detergent composition' refers to any laundry detergent composition comprising a liquid capable of wetting and treating a fabric and includes, but is not limited to, liquids, gels, pastes, dispersions, and the like. The liquid composition may include solids or gases in a suitable subdivided form, but the liquid composition excludes forms that are not generally fluid, such as powders, tablets, or granules. The water-soluble unit-dose article is described in more detail below. The laundry detergent composition comprises from 0.001% to 5%, more preferably from 0.01% to 1%, most preferably from 0.025% to 0.5% by weight of an alkylated phenol or a hindered phenol antioxidant. The perfume is described in further detail below. The laundry detergent composition preferably comprises a non-soap surfactant. More preferably, the non-soap surfactant is selected from anionic non-soap surfactant, non-ionic surfactant, amphoteric surfactant, cationic surfactant, or a mixture thereof. The laundry detergent composition preferably comprises between 10% and 60%, and more preferably between 20% and 55% by weight of the non-soap surfactant. Preferably, the non-soap anionic surfactant comprises linear alkylbenzene sulfonate, alkoxylated alkyl sulfate, alkyl sulfate, or a mixture thereof. Preferably, the alkyl sulfate is an ethoxylated alkyl sulfate. Preferably, the laundry detergent composition comprises between 5% and 50%, preferably between 15% and 45%, more preferably between 25% and 40%, most preferably between 30% and 40% by weight of the detergent composition of the non-soap anionic surfactant. Preferably, the non-soapy anionic surfactant comprises linear alkylbenzene sulfonate and ethoxylated alkyl sulfate, wherein the ratio of linear alkylbenzene sulfonate to ethoxylated alkyl sulfate is preferably the weight ratio of linear alkylbenzene sulfonate to ethoxylated alkyl sulfate is from 1:2 to 20:1, preferably from 1.1:1 to 15:1, more preferably from 1.2:1 to 10:1, even more preferably from 1.3:1 to 5:1, with the highest preference from 1.4:1 to 3:1. Preferably, the laundry detergent composition comprises between 0% and 10%, preferably between 0.01% and 8%, more preferably between 0.1% and 6%, and most preferably between 0.15% and 4% by weight of a nonionic surfactant. The nonionic surfactant is preferably selected from hnRrnn / zznz / E / Yl· alcohol alkoxylates, an oxo-synthesized alcohol alkoxylate, Guerbet alcohol alkoxylates, alkylphenol alcohol alkoxylates, or a mixture thereof. Preferably, the liquid laundry detergent composition comprises between 1.5% and 20%, more preferably between 2% and 15%, even more preferably between 3% and 10%, most preferably between 4% and 8%, by weight of the laundry detergent composition of soap, preferably a fatty acid salt, more preferably a neutralized amine fatty acid salt, wherein, preferably, the amine is an alkanolamine, more preferably selected from monoethanolamine, diethanolamine, triethanolamine or a mixture thereof, more preferably monoethanolamine. The laundry detergent composition preferably comprises an ingredient selected from the list comprising cationic polymers, polyester terephthalates, graft amphiphilic copolymers, carboxymethylcellulose, enzymes, perfumes, encapsulated perfumes, bleaches, or a mixture thereof. Without wishing to be limited by theory, it is believed that the additional addition of these materials may further facilitate odor reduction. The laundry detergent composition may comprise an auxiliary ingredient, wherein the additional ingredient is selected from non-aqueous solvents, water, toning dyes, aesthetic colorants, enzymes, cleaning polymers, additives such as fatty acids, bleaches, dispersants, dye transfer inhibitor polymers, fluorescent bleaching agent, opacifier, antifoam, or a mixture thereof. The composition may include a toning dye, sometimes called a fabric-toning agent, which is well known in the art. Suitable fabric-toning agents include dyes, dye-clay conjugates, and pigments. Suitable dyes include small-molecule dyes and polymeric dyes. Suitable small-molecule dyes include small-molecule dyes selected from the group consisting of dyes included in the Color Index (CI) classifications of direct blue, direct red, direct violet, acid blue, acid red, acid violet, basic blue, basic violet, and basic red, or mixtures thereof. Preferred dyes include alkoxylated azothiophenes, solvent violet 13, acid violet 50, and direct violet 9. Preferably, the laundry detergent composition comprises a chelating agent, wherein the chelating agent is preferably selected from phosphonates, aminocarboxylates, aminophosphonates, polyfunctionally substituted aromatic chelating agents, or mixtures thereof, more preferably an additional chelating agent selected from DTPA (diethylenetriaminepentaacetic acid), HEDP (hydroxyethanediphosphonic acid), EDDS (ethylenediamine disuccinate (EDDS)), DTPMP (diethylenetriamine penta(methylenephosphonic acid)), EDTMP (ethylenediamine tetra(methylenephosphonic acid)), Tiron® (1,2-dihydroxybenzene-3,5-disulfonic acid), HPNO (2-pyridinol-N-oxide), MGDA (methylglycinediacetic acid), GLDA (glutamic-N,N-diacetic acid), any suitable derivatives thereof, salts thereof, and mixtures thereof. The liquid laundry detergent composition preferably has a pH between 6 and 10, with greater preference between 6.5 and 8.9, with the highest preference between 7 and 8, where the pH of the liquid laundry detergent composition is measured as a 10% dilution in demineralized water at 20 °C. Water-soluble unit-dose article The water-soluble unit-dose article comprises a water-soluble film and a laundry detergent composition. The laundry detergent composition and the water-soluble film are described in further detail below. The water-soluble unit-dose article comprises a water-soluble film shaped such that the unit-dose article includes at least one internal compartment surrounded by the water-soluble film, and wherein the laundry detergent composition is present within said compartment. The unit-dose article may comprise a first water-soluble film and a second water-soluble film sealed together to define the internal compartment. The water-soluble unit-dose article is constructed such that the laundry detergent composition does not leak from the compartment during storage. However, after the water-soluble unit-dose article is added to water, the water-soluble film dissolves and releases the contents of the internal compartment into the washing liquid. The compartment is understood to mean a closed internal space within the unit-dose article, containing the detergent composition. During manufacture, a first water-soluble film may be formed comprising an open compartment into which the detergent composition is added. A second water-soluble film is then placed over the first film in such an orientation as to close the compartment opening. The first and second films are then hermetically sealed together along a sealing region. The unit-dose article may comprise more than one compartment, including at least two compartments, or even at least three compartments. The compartments may be arranged in an overlapping orientation, i.e., one placed on top of the other. In such an orientation, the unit-dose article will comprise three films: top, middle, and bottom. Alternatively, the compartments may be placed in a side-by-side orientation, i.e., one facing the other. The compartments may also be oriented in a 'cover and rim' arrangement, i.e., a first compartment is placed next to a second compartment, but the first compartment surrounds, at least partially, the second compartment, but does not completely enclose it. Alternatively, one compartment may be completely enclosed within another compartment. When the unit-dose article comprises at least two compartments, one of the compartments may be smaller than the other. When the unit-dose article comprises at least three compartments, two of the compartments may be smaller than the third, and preferably the smaller compartments overlap the larger compartment. The overlapping compartments are preferably oriented side by side. In a multi-compartment configuration, the laundry detergent composition according to the present invention may be contained in at least one of the compartments. It may be contained, for example, in a single compartment, or it may be contained in two compartments, or even in three compartments. Each compartment may contain the same or different compositions. The different compositions could be in the same form, or they could be in different forms. The water-soluble unit-dose article may comprise at least two internal compartments, wherein the liquid laundry detergent composition is contained in at least one of the compartments, preferably comprising at least three compartments, wherein the detergent composition is contained in at least one of the compartments. Figure 1 describes a water-soluble unit-dose article (1) according to the present invention. The water-soluble unit-dose article (1) comprises a first water-soluble film (2) and a second water-soluble film (3) sealed together in a sealing region (4). The laundry detergent composition (5) is contained within the water-soluble unit-dose article (1). The film of the present invention is water-soluble or dispersible. The water-soluble film preferably has a thickness of 20 to 150 microns, preferably 35 to 125 microns, even more preferably 50 to 110 microns, with the highest preference being approximately 76 microns. Preferably, the film has a water solubility of at least 50%, preferably at least 75% or even at least 95%, as measured by the method set out here after using a glass filter with a maximum pore size of 20 microns: In a pre-weighed 3 L beaker, 5 g ± 0.1 g of film material are added, followed by 2 L ± 5 mL of distilled water. This mixture is vigorously stirred on a magnetic stirrer, Labline model no. 1250 or equivalent, with a 5 cm magnetic stir bar, set at 600 rpm, for 30 minutes at 30 °C. The mixture is then filtered through a folded qualitative sintered glass filter with a pore size as previously defined (maximum 20 microns). The water from the collected filtrate is dried using any conventional method, and the weight of the remaining material (the dissolved or dispersed fraction) is determined. The percentage solubility or dispersibility can then be calculated. The preferred film materials are, preferably, polymeric materials. The film material can be obtained, for example, by casting, blow molding, extrusion, or blow extrusion of the polymeric material, as known in the art. The preferred polymers, copolymers, or derivatives thereof suitable for use as pouch material are selected from polyvinyl alcohols, polyvinylpyrrolidone, polyalkylene oxides, acrylamide, acrylic acid, cellulose, cellulose ethers, cellulose esters, cellulose amides, polyvinyl acetates, polycarboxylic acids and their salts, polyamino acids or peptides, polyamides, polyacrylamides, maleic / acrylic acid copolymers, polysaccharides, including starch and gelatin, and natural gums such as xanthan and carrageenan. The most preferred polymers are selected from water-soluble polyacrylates and acrylate copolymers, methylcellulose, sodium carboxymethylcellulose, dextrin, ethylcellulose, hydroxyethylcellulose, hydroxypropyl methylcellulose, maltodextrin, polymethacrylates, and, with the highest preference, are selected from polyvinyl alcohols, polyvinyl alcohol copolymers and hydroxypropyl methylcellulose (HPMC), and combinations thereof.Preferably, the polymer content in the pouch material, for example, a PVA polymer, is at least 60%. The polymer can have any weighted average molecular weight, preferably from approximately 1,000 to 1,000,000, more preferably from approximately 10,000 to 300,000, and even more preferably from approximately 20,000 to 150,000. Polymer and / or copolymer blends may also be used as bag material, especially polyvinyl alcohol polymer and / or copolymer blends, particularly blends of polyvinyl alcohol homopolymers and / or anionic polyvinyl alcohol copolymers selected, preferably from carboxylated and anionic polyvinyl alcohol copolymers, especially carboxylated anionic polyvinyl alcohol copolymers. Most preferably, the water-soluble film comprises a blend of a polyvinyl alcohol homopolymer and a carboxylated anionic polyvinyl alcohol copolymer. The preferred films exhibit good solubility in cold water, i.e., unheated distilled water. Preferably, such films exhibit good solubility at 24 °C, even more preferably at 10 °C. Good solubility is defined as the film exhibiting water solubility of at least 50%, preferably at least 75%, or even at least 95%, as measured by the method described herein after using a water filter with a maximum pore size of 20 microns, as previously described. The preferred films are those supplied by Monosol with the commercial references M8630, M8900, M8779, M8310. frnfirnn / zznz / E / Yi The film may be opaque, transparent, or translucent. The film may include a printed area. The print area can be achieved using standard techniques such as flexographic printing or inkjet printing. The film may contain an aversive agent, for example, a bittering agent. Suitable bittering agents include, but are not limited to, narangine, sucrose octaacetate, quinine hydrochloride, denatonium benzoate, or mixtures thereof. Any suitable level of aversive agent may be used in the film. Suitable levels include, but are not limited to, 1 to 5000 ppm, or even 100 to 2500 ppm, or even 250 to 2000 rpm. Antioxidant The fabric treatment composition comprises an antioxidant. Antioxidants are substances as described in Kirk-Othmer (volume 3, page 424) and in the Ullmann Encyclopedia (volume 3, page 91). The fabric treatment composition comprises a level of antioxidant sufficient to provide at least 25 ppb, preferably at least 100 ppb, more preferably at least 250 ppb, even more preferably at least 500 ppb, and still more preferably at least 1000 ppb, of antioxidant concentration in the treatment liquor. The antioxidant level may be from approximately 0.001% to approximately 50% by weight of the fabric treatment composition. The antioxidant can be selected from the group consisting of alkylated phenols. Alkylated phenols can have the general formula: OH R wherein R1 is a C3-C6 branched alkyl, preferably tere-butyl; x is 1 or 2; and R is a C1-C22 linear alkyl or a C3-C22 branched alkyl, each (1) optionally having one or more ester (CO2-) or ether (-O-) linkages therein, and (2) being optionally substituted by an organic group comprising an alkylenoxy or polyalkylenoxy group selected from EO, PO, BO, and mixtures thereof, more preferably from EO alone or from EO / PO mixtures; in one aspect R is preferably methyl or C3-C6 branched alkyl, Ci-Ce alkoxy, preferably methoxy. Alkylated phenol may be a hindered phenol. As used herein, the term hindered phenol refers to a compound comprising a phenol group with either (a) at least one C3 or higher branched alkyl, preferably a C3-C6 branched alkyl, preferably tert-butyl, attached at the ortho position to at least one phenolic -OH group, or (b) substituents independently selected from the group consisting of a C1-C2 alkoxy, preferably methoxy, a C1-C22 linear alkyl or C3-C22 branched alkyl, preferably methyl, or a C3-C6 branched alkyl, or mixtures thereof, at each position ortho to at least one phenolic -OH group. If a phenyl ring comprises more than one -OH group, the compound is a hindered phenol provided that at least one of those -OH groups is substituted as described above. An additional class of hindered phenol antioxidants suitable for use in the composition is a benzofuran or benzopyran derivative having the formula: hnRrnn / zznz / E / Yl· where Ri and R2 are each independently alkyl or Ri and R2 can be taken together to form a Cs-Ce cyclic hydrocarbyl entity; B is absent or is CH2; R« is Ci-Ce alkyl; Rs is hydrogen or -C(O)R3 where R3 is hydrogen or C1-C19 alkyl; Re is Ci-Ce alkyl; R? is hydrogen or Ci-Ce alkyl; X is -CH2OH, or -CH2A where A is a unit comprising nitrogen, phenyl, or substituted phenyl. The preferred nitrogen comprising A units includes amino, pyrrolidine, piperidine, morpholino, piperazine, and mixtures thereof. Impeded phenols suitable for use in the present disclosure include, but are not limited to, 3,3'-bis (l,l-dimethylethyl)-5,5'-dimethoxy-[l,l'-biphenyl]-2,2'-diol; 3-(l,l-dimethylethyl)-l,2benzenodiol; 2-(l,l-dimethylethyl)-4,6-dinitrophenol; 2,2'-butylidenebis[6-(l,l-dimet¡lethyl)-4-methylphenol; 4,4'[thiobis(met¡len)]bis[2,6-b¡s(l,l-dimethylethyl)phenol; methyl ester of 3-bis(l,l-dimethylethyl)-4-hydroxy¡-5methylbenzenepropanoic acid; 2-(l,l-dimeth¡let¡l)-4-(l-meth¡let¡l)-phenol; 4,4'-dithiobis[2,6-bis(l,l-dimethylethyl)]phenol; dimethylcarbamodithioic acid ester, [3,5-bis(l,l-dimethylethyl)-4-hydroxyphenyl]methyl; 2,6-bis(l,ldimethylethyl)-4-(2-propen-l-yl)-phenol; nitrilotry-2,l-ethanodiyl ester of 3,5-bis(l,l-dimeth¡let¡l)-4hydroxybenzenepropanoic acid; 4,4'-thiobis[2,6-bis(l,l-dimethylethyl)-phenol; 3,5-bis(l,l-dimethylethyl)-l,2benzenodiol; 3,5-bis(l,ld¡met¡let¡l)-4-hydroxybenzenepropanoic acid hydrazide; ethyl ester of 3,5-bis(l,ld¡met¡let¡l)-4-hydroxybenzenepropanoic acid;ethyl ester of 3,5-bis(l,l-dimethylethyl)-4hydroxybenzoic acid; 4,4'-[oxybis(methylene)]bis[2,6-bis(l,l-dimethylethyl)phenol; 2-[2-(4-chloro-2-nitrophenyl)d¡azen¡l]6-(l,l-dimethylene¡l)-4-meth¡lphenol; a--[3-[3-(2H-benzotriazol-2-yl)-5-(l,l-dimet¡lethyl)-4-hydroxyphenyl]-loxopropyl]-a)-hydroxy-poly(oxy-l,2-ethanodyl); 2,2'-methyleneb¡s[4,6-b¡s(l,l-dimeth¡let¡l)]-phenol; 2,6-bis[[ 3-(1,1dimeth¡let¡l)-2-hydroxy¡-5-met¡lphen¡l]methyl]-4-meth¡lphenol; 2,6-bis(l,l-dimethylethyl)-4-nonylphenol; l,l'-bis[2[3,5-bis(l,l-dimethylethyl)-4-hydroxyphenyl]ethylic] ester of 3,3'-thiobis-propanoic acid; 2-(l,ld¡methylethyl)-6-methyl- 413 [3-[[2,4,8,10-tetrakis(l,ld¡met¡let¡l)d¡benzo[d, f][l,3,2]dioxaphosphepin-6-¡l]ox¡]prop¡l]phenol; 4-acetate of 2(l,l-dimethylene¡l)-l,4-benzenod¡ol; 2,4-bis(l,l-dimethylethyl)-6-(l-phenylethyl)-phenol; 3,4',5-tris(l,l-dimethylethyl)[l,l'-biphenyl]-4-ol; 3,3',5,5'-tetrakis(l,ld¡met¡let¡l)-[l,l'-b¡phenyl]-2,2'-diol;éster metílico del ácido 3-(2Hbenzotriazol-2-il)-5-(l,ld¡met¡let¡l)-4-hidrox¡bencenopropanoico; 4-hidrox¡-3,5-d¡methylbenzon¡tr¡lo; 2-[(2hidrox¡-3,5-dimethylfenil)met¡l]-4,6-d¡methylfenol; 2-etyl-6-met¡Ifenol; 3,4-dih¡dro-2,2,5,7,8-pentamet¡l-2H-lbenzopiran-6-ol; 4-hidroxi-3,5-dimetilbenzaldehído; ácido 3,4-dih¡dro-6-h¡drox¡-2,5,7,8-tetramet¡l-2H-lbenzopiran-2-carboxílico; 2,6-b¡ [(2-hidroxi-5-metilfenil)metil]-4-metilfenol; 2,2'-metilenbis[6-c¡clohex¡l-4metilfenol]; 2,3,5,6-tetrametylphenol; 2,3,4,5,6-pentametilfenol; y mezclas de estos.; In one aspect, the impeded phenols preferred for use in the present disclosure include, but are not limited to, 2,6-dimethyphenol; 2,6-diethylphenol; 2,6-bis(l-methylethyl)-phenol; 2,4,6trimethylphenol; 2-(l,l-dimethyleth¡l)-4-methoxyphenol; 3,5-bis(l,l-dimeth¡let¡l)-4-hydroxy-benzo¡co acid; 3,5-bis(l,l-dimeth¡let¡l)-2-h¡drox¡-benzoic acid; 3,5-bis(l,ld¡met¡let¡l)-4-h¡drox¡-benzenemethanol; 2-(2H-benzotriazole-2-¡l)-4,6-b¡s(l,l-dimeth¡let¡l)-phenol; 2-(l,l-dimethylethyl)-4-ethyl-phenol; 2-(1,1dimethylene¡l)-6-met¡l-phenol; 2,2'-methyleneb¡s[6-(l,ld¡methyleth¡l)-4-et¡lphenol; 2,6-bis(l,l-dimethylethyl)-4ethylphenol; 4,4'-thiobis[2-(l,l-dimethylethyl)-6-methylphenol; l,l'-[(l,2-dioxo-l,2-ethanod¡¡l)bis(¡m¡no-2,lethanodiyl)] ester of 3,5-bis(l,l-dimethylethyl)-4-hydroxybenzenepropanoic acid; 2,6-bis(l,ldimethyle¡l)-nitrosophenol; 2,2'-thiobis[6-(l,ld¡methyleth¡l)-4-methylphenol; 2,6-bis(l,l-dimethylethyl)-4-(lmethylpropyl)-phenol; 2,4-bis(l,l-dimeth¡let¡l)-6-met¡lphenol; 2,2'-ethylenebis[4,6-bis(l,l-dimethylethyl)]phenol;N,N'-l,3-propanod¡ilb¡s[3,5-b¡s(l,ld¡met¡let¡l)-4-h¡drox¡benzenopropanam¡da; 2,6-bis(l,ldimethylene¡l)-l,4-benzenod¡ol; 4,4'-(l-methylethyledeno)bis[2-(l,l-dimethylethyl)-phenol; 2-ethylhexyl ester of 2-[[[3,5-b¡s(l,l-dimethyl)-4-hydroxyphen¡l]methyl]t¡o]acetic acid; 4-butyl-2,6-bis(l,l-dimethylethyl)phenol; ester 2-(l,l-dimethylethyl)-4-[l-[3-(l,l-dimethylethyl)-4-hydroxyphenyl]-l-methylethyl]phenylbis(4nonylphenylic) of phosphoric acid; 4,4'- (2,4,8,10-tetraoxaespiro [5,5] undecano-3,9-diyl)bis[2,6-bis (1,1-dimethylethyl) phenol]; octyl ester of 3-(5-chloro-2H-benzotriazol-2-yl) -5- (1,1-dimethylethyl)4-hydroxybenzenepropanoic acid; 4,4'-(l-methylene)b¡s[2,6-b¡s(l,l-dimeth¡let¡l)-phenol; l,l',l-[(2,4,6trioxo-l,3,5-triaz¡na-l,3,5 (2H,4H,6H)-triyl)tr¡-2,l-ethanodi¡l] ester of 3,5-bis (1,1-dimethylethyl)4-hydroxybenzenepropanoic acid; 2,6-bis(l-methyleth¡l)-phenol; 2,6-diethylphenol; 2,6-dimethyl-l,4-benzenod¡ol; 3, 3', 5,5'-tetramethyl-[l,l'-biphenyl]-4,4'-diol;2,6-bis(l,ld¡met¡let¡l)-4-(l-met¡lpropyl)-phenol; 2,2'methylenob¡s[4-met¡l-6-(l-methylc¡chlohex¡l)phenol; 3,5-bis(l,l-dimeth¡let¡l)-[l,l'-biphen¡l]-4-ol; 4-(1,1dimethylene¡l)-2,6-d¡meth¡lphenol; 2,3,4,6-tetramethylphenol; 2,4,6-tris(l-methylethyl)-phenol; 2,2'-(2methylpropylidene)-bis[4,6-dimethylphenol]; and mixtures thereof.; In another aspect, the highly preferred impeded phenols for use in the present disclosure include, but are not limited to, 2,6-bis(l-methylprop¡l)-phenol; 2,6-bis (1,1-dimethylethyl) -4-methylphenol (also known as hydroxy butylated toluene, BHT, by its English acronyms); 2-(l,l-dimethylethyl)-l,4benzenodiol; 2,4-bis(l,l-dimeth¡let¡l)-phenol; 2,6-bis(l,l-dimethyle¡l)-phenol; 3,5-bis(l,l14 dimethlet2l)-4-hydroxy-benzenopropanoic acid methyl ester; 2-(1,l-dimeth¡lethyl)-4-meth¡lphenol; 2-(l,l-dimethylethyl)-4,6-dimethylphenol; l,l'-[2,2-bis[[3-[3,5-bis(l,l-dimethylethyl)-4-hydroxyphenyl]-l-oxopropoxy]methyl]-l,3-propanodiyl] ester of the acid 3,5-bis(l,l-dimethlet¡l)-4-h¡droxibenzenepropano¡no; octadecylic acid ester 3,5-bis(l,ldimeth¡let¡l)-4-hydroxybenzenepropanoic acid; 2,2'-methyleneb¡s[6-(l,l-dimet¡let¡l)-4-meth¡lphenol; 2-(l,l-dimethylethyl)phenol; 2,4,6-tris(l,l-dimethylete¡l)-phenol; 4,4'-methyleneb¡s[2,6-b¡s(l,l-dimethylete¡l)-phenol;4,4',4-[(2,4,6-trimet¡ll,3,5-benzenotriyl)tris(methylene)]tris[2,6-bis(l,l-dimethylethyl)-phenol); N,N'-l,6-hexanodiyl¡s[3,5-b¡s(l,ldimeth¡let¡l)-4-hydrox¡benzenepropanamide; hexadecyl ester of 3,5-bis(l,l-dimethylethyl)-4hydroxybenzoic acid; diethyl ester of P-[[3,5-b¡s(l,l-dimethlet¡l)-4-hydroxyphen¡l]methlphosphonic acid; 1,3,5tris[[3,5-bis(l,l-dimethylethyl)-4-hydroxyphenyl]methyl]-l,3,5-triazine-2,4,6(lH,3H,5H)-trione; 2-[3-[3,5-bis(l,ldimethylethyl)-4-hydroxyphenyl]-l-oxopropyl]hydrazide of 3,5-bis(l,l-dimethylethyl)-4hydroxybenzenepropanoic acid; l,l'-[l,2-ethanodylbis(ox¡-2,l-ethanodyl)] acid ester 3-(l,l-dimethylet¡l)-4hydroxy-5-methylbenzenepropanoic acid; 4-[(dimethyleam¡no)met¡l]-2,6-b¡s(l,ld¡methylethyl)-phenol; 4-[[4,6-bis (octylthio)-l,3,5-triazin-2-yl] amino] -2,6-bis (l,l-dimethylethyl)-phenol; l,l'-(thiodi-2,l-ethanodiyl) ester of 3,5-bis(l,ld¡met¡let¡l)-4-hydroxybenzenepropanoic acid; 2,4-bis(l,l-dimethylethyl)phenyl ester of 3,5-bis(l,ldimeth¡let¡l)-4-hydrox¡benzo¡co acid;l,l'-(l,6-hexane¡d¡yl)ester of 3,5-bis(l,l-dimethylethyl)-4hydroxybenzenepropanoic acid; l,l'-[2,4,8,10-tetraoxaespiro[5.5]undecano-3,9-d¡ilbis(2,2-d¡met¡l-2,lethanodiyl)] acid ester 3-(l,l-dimethylethyl)-4-h¡drox¡-5-methylpropane; l,l'-(l,2-etandiyl) acid ester 3-(l,ld¡met¡let¡l)-p-[3-(l,ld¡methylet¡l)-4-h¡drox¡phen¡l]-4-h¡drox¡-p-met¡lbenzenepropano¡co; 1,3bis(l,2,2,6,6-pentameth¡l-4-p¡perid¡nyl) acid ester 2-[[3,5-bis(l,ld¡met¡let¡l)-4-hydrox¡phen¡l]methyl]-2butylpropanodioic acid; l-[2-[3-[3,5-bis(l,l-dimethylethyl)-4-hydroxyphenyl]-l-oxopropoxy]ethyl]-2,2,6,6-tetramethyl-4piperidinyl ester of the acid 3,5-bis(l,ld¡met¡let¡l)-4-hydroxybenzenenopropano¡co; 3,4-dihydro-2,5,7,8tetramethyl-2-[(4 R,8 R)-4,8,12-tr¡methyltridecyl]-(2 R)-2 Hl-benzopyran-6-ol; 2,6-dimethylphenol; 2,3,5-trimethyl1,4-benzenodiol; 2,4,6-trimethylphenol; 2,3,6-trimethylphenol; 4,4'-(l-methyl¡l¡den)-b¡s[2,6-dimethylphenol];1,3,5tris[[4-(l,ld¡meth¡let¡l)-3-h¡drox¡-2,6-d¡meth¡lphen¡l]methyl]-l,3,5-tr¡az¡n-2,4,6(lH,3H,5H)-tr¡one; 4,4'methyleneb¡s[2,6-d¡meth¡lphenol]; and mixtures thereof.; In another aspect, the impeded phenols highly preferred for use in the present disclosure may also include 2-(l,l-dimeth¡let¡l)-4-methoxy¡phenol, 3,5-bis(l,l,l-dimeth¡let¡l)-4-hydroxy¡- cobenoic acid, 3,5-bis(l,ld¡met¡let¡l)-2-h¡drox¡-benzoic acid, 3,5-bis(l, 1dimeth¡let¡l)-4-hydroxy¡-benc¡methanol, 2-(2 H-benzotnazol-2-yl)-4,6-bld¡s(l,l,l,phenol) 2-(l, 1dimethylene¡l)-4-eth¡l-phenol, 2-(l,l-dimethylethyl)-6-meth¡l-phenol, 3-(l,l-dimethylene¡l)-l,2-benzeneod¡ol, 2,2'methylenebis[6-(dimethylene¡l, l-methylene¡l-phenol)-4-l-phenol 2,6-bis(l,ld¡methylphenol)-4-eth¡lphenol, 4,4'-thiobis[2-(l,ldimethyl¡l)-6-meth¡lphenol 2-(l,l-dimethylethyl)-4,6-d¡n¡n¡trophenol, 2,6-bis(l,ld¡methyl-sophenol) 2,2'-thiobis[6-(l, l-dimeth¡lethyl)-4-meth¡lphenol, 2,6-bis(l,ld¡meth¡let¡l)-4-(l-methylpropyl)phenol, 2,2'butylidenb¡s[6-(l, l, dimethyl)-4-lphenol, 2,4-bis(l,ld¡meth¡let¡l)-6-methylphenol, 4,4'[thiob¡s(methylene)]b¡s[2,6-b¡s(l,l-dimethylene¡l)phenol, 2,2'-ethyldenob¡s[4,6-bl N,N'-l,3-propanodiylbis[3,5-bis(l,l-dimethylethyl)-4-hydroxybenzenepropanamide, methyl ester of the acid 3-(l,l-dimeth¡let¡l)-4-h¡drox¡-5-methylbenzenepropanol, 2-(l,l-dimethyl-methyl-phenol) 2,6-bis(l,ld¡methyl¡l)-l,4-benzened¡ol, 4,4'-(l-methylethylideno)bis[2-(l,l-dimethylethyl)phenol, 4,4'-dit¡ob¡s[2,6-b¡s(l,l,l-dimethylene) [3,5,3]-bisphenol l-dimethylethyl)-4hydroxyphen¡lo]methylic acid dimethylcarbamodithioic acid, 2-ethylhexyl ester of 2-[[[3,5-bis(l,ldimethyl)-4-hydroxyphen¡l]methyl]acetic acid ester 3-(5-chloro-2 H-benzotriazole-2-¡l)-5(l,l-dimeth¡leth¡l)-4-hydroxy¡benzenepropano¡co, 4-butyl-2 6-bis(l,l-dimethylethyl)phenol, 2,6-bis(l,l,l-dimethylethyl)-phenol-2-l-phenol ester 2-(l,l-dimethylethyl)-4-[l-[3-(l, l-dimethylethyl)-4-hydroxyphenyl]l-methylethyl]phen¡l bis(4-nonylphenyl) of phosphoric acid, 4,4'-(2,4,8,10-tetraoxaespiro[5. 5]undecano3,9-diyl)bis[2,6-bis(l,l-dimethylethyl)phenol], octyl ester of the acid 3-(5-chloro-2 H-benzotriazol-2-yl)-5(l,l-dimethyl)-4-hydroxybenzenepropanoic acid, nitrilotry-2,l-ethanodyl acid 3,5-bis(l,ldimethyl)-4-hydroxybenzenepropanoic acid, 4,4'-thiobis[2,6-bis(l,l,l-methyl-fendiol) 4,4'-(lmethylethylideno)bis[2,6-bis(l,l-dimethylethyl)phenol, l,l',l-[(2,4,6-tr¡oxo-l,3,5-triaz¡na-l,3,5(2H, 4H,6H)-tr¡¡l)tr¡¡¡¡2,l-acetic acid ester] 3,5-bis(l,ld¡meth¡let¡l)-4-h¡droxibenzenepropanoic acid, 2,6-bis(l-methyl¡l)phenol, 2,6-diethylphenol, 2-ethyl-6-methylphenol, 3,3',5,5'-tetramethyl-[l,l,l'-biphenyl-4',4'] 3,4-dihydro-2,2,5,7,8-pentamethyl-2 Hl-benzopyran-6-ol, 2, 2'-methylenebis[4-methyl-6-(lmethylcyclohexyl)phenol, 3,5-bis(l,ld¡meth¡lethyl)-[l,l'-b¡-l¡-phenol,4¡] 4-(l,l-dimethylethyl)-2,6-dimethylphenol, 2,3,4,6-tetramethylphenol, 2,2'-(2-methylprop¡ldeno)b¡s[4,6-dimethylphenol] and mixtures thereof., Preferably, the hindered phenol is selected from the group consisting of 2,6-bis(l,ldimethylethyl)-4-methylphenol; δ-tocopherol; linear or branched Ci-Cis alkyl esters of 3,5-bis(l,ldimethylethyl)-4-hydroxybenzenepropanoic acid; and mixtures thereof. Preferred examples of linear or branched Ci-Cis alkyl esters of 3,5-bis(l,ldimethylethyl)-4-hydroxybenzenepropanoic acid include methyl ester of 3,5-bis(l,ldimethylethyl)-4-hydroxybenzenepropanoic acid, (commercially available under the trade name RALOX® 35 from Raschig USA, Arlington, Texas, USA) and octadecyl ester of 3,5-bis(l,ldimethylethyl)-4-hydroxybenzenepropanoic acid, (commercially available under the trade name TINOGARD® TS from BASF, Ludwigshafen, Germany). In a preferred non-limiting example, the hindered phenol can be 2,6-bis(1,1-dimethylethyl)-4-methylphenol. Production process Skilled workers will know how to prepare the water-soluble unit-dose article and the liquid laundry detergent composition according to the present invention using techniques known in the art. Uso hnRrnn / zznz / E / Yl· An additional aspect of the present invention is a use of an alkylated phenol or a hindered phenol antioxidant to reduce bad odor in fabrics, wherein the fabric comprises at least one source of bad odor. The washing liquor comprises a metal ion, preferably Cu2+. The metal ion may be present on the fabric before the fabric comes into contact with the washing liquor. The metal ion may be present in the odor source on the fabric before the fabric is combined with the washing liquor. The metal ion may be present in the washing liquor when it is combined with the fabric. If present in the washing liquor, the metal ion may also be present in the laundry detergent, the water, or a mixture thereof. The odor source may comprise the metal ion at the point where the odor source is applied to the fabric. Alternatively, the odor source may be applied to the fabric and the metal ion applied later. Preferably, at least one source of bad odor comprises a metallic ion, most preferably Cu2+. An additional aspect of the present invention is the use of a process according to the present invention for reducing bad odor in fabrics in a washing liquor, wherein the fabrics comprise at least one source of bad odor and wherein the washing liquor comprises a metal ion, preferably Cu2+. The dimensions and values ​​described herein should not be understood as strictly limited to the exact numerical values ​​stated. Instead, unless otherwise specified, each such dimension shall mean the stated value and a functionally equivalent range encompassing that value. For example, a dimension described as 40 mm refers to approximately 40 mm. Testing methods Odor Reduction Test Method The following method is used to test the odor-reducing benefits of a composition. A. Preparation of 75 bouquets of bad-smelling marker Fatty acids and odor markers are added to a 100 ml glass jar with a Teflon-lined lid according to Table A and mixed thoroughly using a vortex. Table A. Bad odor marker composition frnRenn / zznz / B / Yii Material CAS No. % Composition Weight required (g) Isovaleric acid 503-74-2 12.00 9.0 Undecanal 112-44-7 0.20 0.15 17 Undecanoic acid 112-37-8 62.80 47.1 Skatole 83-34-1 1.00 0.75 Decanoic acid 334-48-5 22.00 16.5 Ethyl undecanoate 627-90-7 2.00 1.5 hnGrnn / zznz / E / Yl· B. Preparation of a foul-smelling composition of body dirt The specified quantity of each material, as per Table B, is provided in a 200 ml glass jar with a Teflon-lined cap. Artificial Body Dirt (ABS) is commercially available through Accurate Product Development; 2028 Bohlke Blvd, Fairfield, OH 45014. Table B. Composition of foul-smelling body dirt Material Weight (g) Odor Marker (from Table A) 17.1 Artificial Body Filth (ABS) 15.8 Dipropylene Glycol Monomethyl Ether (CAS: 34590-94-8) 105 Squalene (CAS No. 111-02-4) 15.8 C. Preparation of the odor test fabrics Sixteen odor test fabrics are prepared per wash load by applying 300 pl of the body soil odor composition described in Table B to convert them into 2x5 inch unsized white 50 / 50 polycotton (PCW50 / 50) samples. 48 grams of the liquid detergent to be tested (see, e.g., Example 1, Table 1, below) are added to the Duet 9200 washing machine set to the normal cycle: a wash cycle at 77°F followed by a rinse cycle at 60°F. Municipal tap water from Cincinnati, OH, USA, is used, which contains an ambient level of copper, for example, due to copper piping systems. The odorous test fabrics are washed in 7 gpg wash water with a 3.9 kg, 50 x 50 cm clean cotton and polycotton ballast, and then dried in a Maytag brand twin-stack drum dryer set to low for 20 minutes.The dried fabrics are placed in a mylar bag and sealed for 24 hours. D. Analytical detection of bad odor in fabric The reduction of malodor using ABS / squalene malodor sensors is quantitatively determined by gas chromatography-mass spectrometry using an Agilent 7890B gas chromatograph equipped with a mass selective detector (5977B), a Chemstation quantification package, and a Gerstel multipurpose sampler equipped with a solid-phase microextraction (SPME) probe. Calibration standards of 6-methyl-5-hepten-2-one (CAS 110-93-0), trans-2-heptenal (18829-55-5), and 3-methyl-2-butenal (107-86-8) are prepared by dissolving a known weight of these materials in light mineral oil (CAS 8020-83-5) (each material is available from Sigma Aldrich). The fabrics are cut into uniform pieces measuring 2 inches by 2.5 inches and placed in 10 ml vials with a crimped top space. The vials are equilibrated for more than 12 hours prior to analysis.The following settings are used on the autosampler: Incubation temperature 80 °C, incubation time 90 min, sample tray type VT32-10, vial penetration 22 mm, extraction time 20 min, injection penetration 54 mm, and desorption time 300 s. The following settings are used for the front-split / non-split helium inlet: split mode, temperature 250 °C, pressure 12 psi, total flow 79.5 ml / min, septum purge flow 3 ml / min, split ratio 50:1, and GC run time 22.5 min. The following settings are used on the oven: Initial temperature °C, heating program 12 °C / min, temperature 250 °C, and holding time 5 min. Based on the partition coefficients (K at 80 C) of each component, the total nMol / l liter of 6methyl-5-hepten-2-one (K = 3353), Trans-2-heptenal (K=3434) and 3-methyl-2-butenal (K=1119) is calculated. These values ​​from these three measurements (in nmoles / l) are added together to provide the total ABS / squalene markers (nmoles / l) for a given test stage. E. Calculations of % reduction of bad odor from oxidation products The percentage reduction in odor from oxidation products is provided as a percentage comparing the reduction in the amount of selected odor markers provided by the test composition to that of the reference composition (zero antioxidant). The value is determined as follows: % reduction of oxidation products = (ref markers - test markers) x 100 / ref markers The values ​​of the reference markers and the test markers are defined as follows: Reference Markers = Total ABS / squalene markers (nmoles / l) of fabrics washed with the formulation without antioxidant (e.g., the reference or control formulation) Test markers = total ABS / squalene markers (nmoles / l) of fabrics washed with the formulation containing the tested antioxidant Because the measured oxidation products are typically considered malodorous, it is believed that the higher the % reduction of oxidation products provided by a composition, the less likely the treated fabrics are to be malodorous. Therefore, higher % odor reduction values ​​are typically preferred. The compositions and processes described herein can provide an oxidation product odor reduction % value of at least approximately 10%, or at least approximately 20%, or at least approximately 30%, or at least approximately 40%, or at least approximately 50%, or at least approximately 60%, or at least approximately 70%, or at least approximately 80%. The reduction of bad odor can also be reported as the difference between the markers^ and the Test markers, showing an absolute difference (e.g., Delta ABS / Squalene Oxidation). Test method for determining the logarithm of the octanol / acid partition coefficient at pH 7 (loo D) The logarithm of the octanol / water partition coefficient at pH 7.00 (log D) is determined for each antioxidant. The unitless value for log D at pH 7 for a known antioxidant is obtained from the Chemical Abstracts Service (CAS, Columbus, Ohio, USA), if available. CAS provides values ​​calculated using Advanced Chemistry Development (ACD / Labs) Software Vil.02 (© 1994-2019 ACD / Labs). If the value is not available from CAS, the value is determined using ACD software (version 14.02 (Linux) available from Advanced Chemistry Development Inc., ACD / Labs, Toronto, Canada), which employs the default log P and pKa values ​​and classical algorithms for calculating log D. The antioxidants of the present invention have a log D at pH 7.00 greater than or equal to one or more of the claimed values ​​(CV). If the log D is not listed for an antioxidant compound of interest in the information available from the Chemical Abstracts Service (CAS, Columbus, Ohio, USA), it can be calculated directly using ACD software. If the calculated log D value at pH 7, obtained from the CAS if available, or calculated using software, is less than CV-0.50, or is not listed and is determined by calculation using ACD software to have a log D at pH 7 less than CV-0.50, no experimental measurement of the value is required. If the calculated log D value at pH 7 is already listed as equal to or greater than CV-0.50 and less than or equal to CV+0.50, or is not listed and is determined by calculation using ACD software to have a log D at pH 7 equal to or greater than CV-0.50 and less than or equal to CV+0.50, then an experimental determination of the value must be made to arrive at the value for the purposes of this invention. In the present invention, the measurement of the octanol-water partition coefficient must be achieved in accordance with OECD Test No. 117: Partition Coefficient (n-octanol / water), HPLC method. The method is available from the OECD Library (https: / / www.OECD-ilibrary.org / ), the online genoteca of the Organization for Economic Cooperation and Development (OECD). frnfienn / zznz / E / Yii Reversed-phase HPLC is performed on analytical columns packed with a solid phase containing long hydrocarbon chains chemically bonded to silica. Chemicals are retained on the column in proportion to their hydrocarbon-water partition coefficient, with hydrophilic chemicals eluting first and lipophilic chemicals subsequently. The HPLC method covers log Pow values ​​from 0 to 6, but can be expanded to cover log Pow values ​​from 6 to 10 in exceptional cases. HPLC operates in the isocratic mode. The test substance is injected into the column in the smallest detectable amounts. The retention time is determined in duplicate. The partition coefficient of the test substance is obtained by interpolating the capacity factor calculated from the calibration chart. Extrapolation is necessary for very low and very high partition coefficients. The pH of the eluent is critical for ionizable substances. For the purposes of the present invention, it is necessary to adjust the eluent to a pH of 7.00 ± 0.05 when performing the OECD 117 test. The value obtained is taken to be the log D at pH 7 for the material of interest. Examples The examples provided below are for illustrative purposes and are not intended to be limiting. Example 1. Illustrative formulations (Oran performance liquid laundry detergents) The following high-performance liquid laundry detergent compositions can be prepared by traditional means known to those skilled in the art by mixing the ingredients indicated in Table 1. Composition 1A is a conventional premium laundry detergent that does not contain the antioxidants described herein. Compositions IB to 1H are prepared from 1A by adding 0.035% by weight of the indicated antioxidant. Table 1. % by weight of active ingredients in compositions 1A to 1H frnArnn / zznz / E / Yi Raw material 1A IB IC ID 1E 1F 1G 1H C12-15 alkyl sulfate EO1.8 11.7 Alkylbenzenesulfonate 1 7.2 C12-14 amine oxide 0.7 EO9 2 C12-14 5 Citric acid 2.1 C12-18 fatty acid 0.9 Sodium hydroxide 0.2 Chelating agent 3 0.47 Monoethanolamine 2.9 Diethylene glycol 2.4 1,2-Propanediol 2.1 Borate 1 Ethanol 1.5 Sorbitol 0.06 Sodium cumene sulfonate 0.15 PEI4 ethoxylated 1.5 Amphiphilic alkoxylated grease-cleaning polymer 5 1.3 Calcium formate 0.1 Sodium chloride 0.03 Protease 6 0.068 Mannanase 7 0.002 Amalisa 7 0.007 Fluorescent bleaching agents 8 0.3 Whitening dye V200 0.025 Perfume 0.6 Hydrogenated castor oil 0.1 Phenoxyethanol 0.001 Benzisothiazolinone 0.001 Aesthetic dye 0.01 Silicone foam suppressant DC1520 0.003 Silicone foam suppressant AF8017 0.2 Antioxidant l9 0.035 —* Antioxidant 210 0.035 Antioxidant 311 0.035 Antioxidant 412 —* 0.035 Antioxidant 513 —* —* 0.035 —* Antioxidant 614 __* —* —* __* 0.035 —* Antioxidant 715 —* —* —* 0.035 Water / Various Balance 1. Linear alkylbenzenesulfonate having an average chain length of aliphatic C11-C12 carbon, supplied by Stepan, Northfield, Illinois, USA. 2. AE9 is a C12-14 alcohol ethoxylate, with an average degree of ethoxylation of 9, supplied by Huntsman, Salt Lake City, Utah, USA 3. Diethylenetetraamine pentaacetic acid (DTPA), supplied by Dow Chemical, Midland, Michigan, USA. Hydroxyethane diphosphonate (HEDP), supplied by Solutia, St. Louis, Missouri, USA, or tetrasodium glutamate diacetate (GLDA), supplied by AkzoNobel, Amsterdam, Netherlands, or diethylenetriamine (DETA), supplied by Huntsman, The Woodlands, Texas, USA, may also be used. 4. Polyethyleneimine (PM = 600) with 20 ethoxylate groups per -NH. 5. The amphiphilic alkoxylated grease-cleaning polymer is a polyethyleneimine (MW = 600) with 24 ethoxylate groups per -NH and 16 propoxylate groups per -NH. 6. Proteases may be supplied by Genencor International, Palo Alto, California, USA (e.g., Purafect Prime®) or by Novozymes, Bagsvaerd, Denmark (e.g., Liquanase®, Coronase®). 7. Natalase®, Mannaway® are all products of Novozymes, Bagsvaerd, Denmark. 8. Suitable fluorescent bleaching agents are, for example, Tinopal® AMS, Tinopal® CBS-X. 9. Methyl (3,5-di-tert-butyl-4-hydroxyphenyl)propionate, CAS 6386-38-5 10. 3,5-bis(l,ld¡methyllet¡l)-4-hydroxy¡benzenepropanoic acid ester 11. N,N'-l,6-hexanedi¡lb¡s[3,5-b¡s (l,l-dimethyl¡lel)-4-hydroxy¡benzenepropanamide, CAS 23128-74-7 12. l,3,5-tr¡s[[3,5-b¡s(l,ld¡methyllet¡l)-4-hydroxy¡phen¡l]methyl]-l,3,5-tr¡azin-2,4,6(l H,3 H,5 H)-trione, CAS 27676-62-6 13. Alpha-tocopherol (3,4-dihydro-2,5,7,8-tetramethyl-2-(4,8,12-trimethyltridecyl)-2H-l-benzopyran-6-ol), CAS 10191^11-0 14. Cromanol (3,4-dihydro-2,2,7,8-pentamethyl-2H-l-benzopyran-6-ol), CAS 950-99-2 15. 3,4-Dihydro-6-hydroxy-2,5,7,8-tetramethyl-2H-1-benzopyran-2-carboxylic acid, CAS 53188-07-1 Example 2. Odor control through the use of antioxidants To demonstrate the odor-controlling effects of the antioxidants described herein, several liquid detergent compositions were prepared according to Example 1A, Table 1, above. The compositions were tested to determine their % reduction of oxidation products according to the test method provided above. The results are shown in Table 2. πηκΓηη / ζζηζ / Ε / γι Table 2. Impact of hindered phenols at 0.035% by weight on the formation of the bad odor marker. Comp. Structure of antioxidant ACDLabs logP(pH 7) Total marking ABS / escualeno (nmoles / l) % reduction 1A 139.8 IB 1 0 HO'^y 4.87 39.2 72.0 1C rio ί ího^ h 18.83 16.8 88.0 ID Λ J\ / OH \l ? h ΓιΤ Vr......%......................'T--U1r 9.82 14.6 89.6 IE -Λζ δ < * II Oí cc o O=< za: K o 11.40 41.5 70.3 1F .........J..............L.....J. 10.96 29.9 78.6 1G 3.79 5.7 95.9 1H Jí Ύ Ί -0.93 143.4 -2.6 bnRrnn / zznz / E / YiAi The results demonstrate that while a wide variety of such structures provide a significant reduction in the detected total oxidation markers, not all antioxidants do. The antioxidant in Composition 1H, which has an ionizable carboxylic acid group, failed to demonstrate any benefit. Compositions 1F and 1G contain antioxidants with structures very similar to the phenol entity, but they lack readily ionizable groups at neutral pH or other strongly solubilizing groups. The antioxidant used in Composition 1H has a calculated log D value of 0.93 at pH 7 (calculated using Advanced Chemistry Development (ACD / Labs) Software Vol. 02), meaning it is almost 10 times more likely to be in water than in octanol when the water is at pH 7 and the volumes of water and octanol are equal. The other hindered phenol antioxidants employed, including those in Compositions 1F and 1G, have log D values ​​ranging from 3.79 to 18.83 at pH 7. Since body soils are largely hydrophobic, it is perhaps understandable why a more water-soluble material such as 3,4-dihydro-6-hydroxy-2,5,7,8-tetramethyl-2H-1-enopyran-2-carboxylic acid used in formulation 9H did not provide benefits; it has little driving force to break down the hydrophobic soil, which it must do if it is to affect the auto-oxidation events in that soil after washing. Example 3. Impact of Cu2+ on bad odor This example demonstrates that the presence of copper in the wash solution affects the amount of post-wash auto-oxidation that produces a detectable malodor. Four simultaneous washes of standard body soiling samples were performed using 1000 ppm of commercially available Tide liquid detergent, where three of the wash solutions were enriched with 400, 800, or 1200 ppb of copper. The fourth wash had no copper added and served as a control. Analysis of the washed and dried samples to determine the levels of odor markers (3-methyl-2-butenal, trans-2-methyl-heptenal and 6-methyl-5-hepten-2-one) showed that the addition of copper to the wash resulted in an increase in the level of the generated odor markers, as shown in Table 3 below. Table 3. Impact of copper ions in washing on the generation of bad odor. hnRrnn / zznz / E / Yl· Cu2+ treatment added (ppb) ABS / squalene markers (nmoles / l) A 0 62 B 200 120 C 400 162 D 800 163 Surprisingly, adding more copper beyond 400 ppb did not further increase the levels of the detected markers, perhaps indicating that 400 ppb of copper was sufficient to maximize the subsequent autoxidation of the soil present. For any level of soil remaining on the tissue, it is reasonable to assume that there is a corresponding maximum amount of odor markers that can be generated from that soil. The dimensions and values ​​described herein should not be understood as strictly limited to the exact numerical values ​​stated. Instead, unless otherwise specified, each such dimension shall mean the stated value and a functionally equivalent range encompassing that value. For example, a dimension described as 40 mm refers to approximately 40 mm. Each document mentioned herein, including any cross-references or related patents or applications and any patent or patent application to which this application claims priority or benefit, is hereby incorporated by reference in its entirety unless expressly excluded or limited otherwise. Reference to any document is not an admission that it constitutes prior art with respect to any invention described or claimed herein or that, alone or in any combination with any other reference(s), it teaches, suggests, or describes such invention. Furthermore, to the extent that any meaning or definition of a term in this document conflicts with any meaning or definition of the same term in a document incorporated by reference, the meaning or definition assigned to the term in this document shall prevail. Although particular embodiments of the present invention have been illustrated and described, it will be evident to those skilled in the art that various changes and modifications can be made without departing from the spirit and scope of the invention. It is therefore intended that the appended claims encompass all changes and modifications within the scope of this invention.

Claims

The claim is:

1. A process for reducing bad odors in fabrics, comprising the steps of: a. Combining fabrics with a wash liquor, characterized in that the fabrics comprise at least one source of bad odor and wherein the wash liquor comprises metal ions, preferably Cu2+, and wherein the wash liquor is prepared by diluting a laundry detergent composition in water by a factor of between 100 and 3000 times, preferably between 300 and 900 times; b. Washing the fabrics in the wash liquor using an automatic washing operation, a manual washing operation, or a mixture thereof, preferably an automatic washing operation; c. Separating the fabrics and the wash liquor from each other; d. Drying the fabrics; wherein the laundry detergent composition comprises from 0.001% to 5%, preferably from 0.01% to 1%, with the highest preference being from 0.025% to 1%.5% by weight of the laundry detergent composition of an alkylated phenol antioxidant, a hindered phenol antioxidant, or mixtures thereof, wherein at least one of said antioxidants has a log D value at pH 7 equal to or greater than 1.50, preferably equal to or greater than 2.50, more preferably equal to or greater than 3.

50.

2. The process according to any preceding claim, characterized in that the metal ion is introduced into the washing liquor by being present in the fabric before coming into contact with the washing liquor, which is present in the water used to make the washing liquor, or a mixture thereof.

3. The process according to any preceding claim, a. characterized in that the fabrics are washed in the washing liquor at a temperature between 5°C and 60°C, preferably between 10°C and 45°C, more preferably between 10°C and 35°C; b. wherein the washing operation in step b takes between 5 minutes and 60 minutes, preferably between 5 minutes and 45 minutes, more preferably between 5 minutes and 30 minutes; c. or a mixture thereof.

4. The process in accordance with any of the above claims, wherein the antioxidant is selected from the group consisting of 2,6-bis(l-methylpropyl)phenol; 2,6bis(l,l-dimethylethyl)-4-methyl-phenol; 2-(l,l-dimethylet¡l)-l,4-benzenod¡ol; 2,4-bis(l,l-dimeth¡let¡l)-phenol; 2,6-bis(l,l-dimethylete¡l)-phenol; methyl ester of 3,5-b¡s(l,l-dimethylethyl)-4-hydroxybenzenepropanoic acid; 2-(l,l-dimethylethyl)-4-methylphenol; 2-(l,l-dimethylethyl)-4,6-d¡methyl-phenol; l,l'-[2,2bis[[3-[3,5-bis(l,l-dimethylethyl)-4-hydroxyphenyl]-l-oxopropoxy]methyl]-l,3-propanodiyl] acid ester 3,5-bis(l,l-dimethylethyl)-4-hydroxybenzenepropanoic acid; octadecylic acid ester 3,5-bis(l,ldimeth2l)-4-hydroxybenzenepropanoic acid; 2,2'-methylenbis[6-(l,ld¡methyleth¡l)-4-meth¡lphenol; 2-(1,1dimethylene¡l)-phenol; 2,4,6-tris(l,l-dimethylethyl)-phenol; 4,4'-methyleneb¡s[2,6-b¡s(l,l-dimeth¡let¡l)-phenol; 4,4',4-[(2,4,6-trimethyl-l,3,5-benzenotriyl)tris(methylene)]tr¡s[2,6-bis(l,l-dimeth¡lethyl)-phenol];N,N'-1,6hexanedilbis[3,5-bis(1,1-methylethyl)-4-hydroxybenzenepropanamide; hexadecyl ester of 3,5-bis(1,1-methylethyl)-4-hydroxybenzoic acid; diethyl ester of P-[[3,5-bis(1,1-dimethylethyl)-4-hydroxyphenyl]methylphosphonic acid; 1,3,5-tris[[3,5-bis(1,1-dimethylethyl)-4-hydroxyphenyl]methyl]-1,3,5-triazin2,4,6(1H,3H,5H)-trione; 3,5-bis(l,ld¡methylethyl)-4-hydroxy¡benzenepropanoic acid 2-[3-[3,5-bis(l,l-dimethylethyl)-4-hydroxyphenyl]-l-oxopropyl]hydrazide; 3-(l,l-dimethylethyl)-4-hydroxyl-5-methylbenzenepropanoic acid l,l'-[l,2-ethanediylbis(oxy-2,l-ethanediyl)] ester; 4'-[(dimethylamino)methyl]-2,6bis(1,l-dimethylethyl)phenol; 4-[[4,6-bis(octylthio)-l,3,5-triaz¡n-2-¡l]amino]-2,6-bis(l,l-dimethylethyl)phenol; l,l'-(thiodi-2,l-ethanediyl) ester of 3,5-bis(l,l-methylethyl)-4-hydroxybenzenepropanoic acid; 2,4-bis(l,l-dimethylethyl)phenyl ester of 3,5-bis(l,l-methylethyl)-4-hydroxybenzoic acid; 1,1'-(1,6-hexanidiyl) ester of 3,5-bis(l,l-methylethyl)-4-hydroxybenzenepropanoic acid;l,l'-[2,4,8,10tetraoxaespiro[5.5]undecano-3,9-diylbis(2,2-dimethyl-2,l-ethanodiyl)] acid ester 3-(1,1dimeth¡let¡l)-4-h¡drox¡-5-methylbenzenepropano¡co; l,l'-(l,2-ethanethyl) acid ester 3-(1,1d¡met¡let¡l)-p-[3-(l,ld¡methylet¡l)-4-hydroxyphen¡l]-4-h¡drox¡-p-met¡lbenzenepropanoic acid; 1,3- b¡s(l,2,2,6,6-pentamethyl-4-p¡perdin¡l) acid ester 2-[[3,5-bis(l,l-dimethylethyl)-4hydroxyphen¡l]methl]-2-but¡lpropanoic acid; l-[2-[3-[3,5-bis(l,ld¡meth¡let¡l)-4-hydroxyphen¡l]-loxopropox¡]et¡l]-2,2,6,6-tetramethyl-4-p¡per¡d¡n¡l acid ester 3,5-bis(l,l-dimet¡let¡l)-4hydroxybenzenepropanoic acid; 3,4-dih¡dro-2,5,7,8-tetramethyl-2-[(4 R,8 R)-4,8,12-trimet¡ltr¡dec¡l]-(2 R)2 Hl-benzopyran-6-ol; 2,6-dimethylphenol; 2,3,5-trimet¡ll,4-benzenodiol; 2,4,6-trimethylphenol; 2,3,6trimethylphenol; 4,4'-(l-methyl¡l¡dene)-bis[2,6-d¡meth¡lphenol]; l,3,5-tr¡s[[4-(l,ld¡meth¡letyl)-3-h¡drox¡-2,6d¡meth¡lfen¡l]meth¡l]-l,3,5-tr¡azine-2,4,6(lH,3H,5H)-tr¡one; 4,4'-methylenebis[2,6-d¡meth¡lphenol]; 2,6-bis(lmethylpropyl)phenol;2-(l,l-dimethylethyl)-4-methoxy¡phenol; 3,5-bis(l,ld¡met¡let¡l)-4-hydroxy-benzo¡co acid; acid 3,5-bis(l,ld¡meth¡let¡l)-2-h¡droxy-benzo¡co;3,5-b¡s(l,ld¡meth¡let¡l)-4-h¡drox¡-benzenemethanol; 2(2H-benzotriazole-2-¡l)-4,6-b¡s(l,l-dimeth¡let¡l)-phenol; 2-(l,l-dimethylene¡l)-4-ethyl-phenol; 2-(1,1dimethylene¡l)-6-met¡l-phenol; 3-(l,l-dimethylet¡l)-l,2-benzenod¡ol; 2, 2'-methylenobis[6-(l,ld¡met¡let¡l)-4ethylphenol,2,6-b¡s(l,ld¡methylphenol)-4-eth¡lphenol; 4,4'-thiob¡s[2-(l,ld¡methyleth¡l)-6-met¡lphenol; 2-(1,1 hnRrnn / zznz / E / Yl· dimethylete¡l)-4,6-d¡n¡trophenol; 2,6-bis(l,l-dimethylethyl)-nitrosophenol; 2,2'-thiobis[6-(l,l-dimethylethyl)-4methylphenol; 2,6-bis(l,ld¡methyl)-4-(l-methylprop¡l)-phenol; 2,2'-buty¡¡lenb¡s[6-(l,ld¡methyleth¡l)-4methylphenol; 2,4-bis(l,l-dimethylethyl)-6-methylphenol; 4, 4'- [thiobis (methylene)]b¡s[2,6-b¡s(l,l-dimeth¡let¡l)phenol; 2,2'-ethylidenebis[4,6-b¡s(l,l-dimeth¡let¡l)]phenol; N,N'-l,3-propanodi¡lb¡s[3,5-bis(l,ld¡methyleth¡l)4-hydroxybenzenepropanamide;3-bis(l,ld¡methylethyl)-4-hydrox¡-5methylbenzenepropanoic acid methyl ester; 2-(l,l-dimethylethyl)-4-(l-methylethyl)-phenol; 2,6-bis(l,l-dimethylethyl)-l,4benzenodiol; 4,4'-(l-methyl¡deno)b¡s[2-(l,ld¡methyl¡l)phenol; 4,4'-dithiobis[2,6-bis(l,ldimethylene¡l)]phenol; [3,5-bis(l,l-dimethylethyl)-4-hydroxyphenyl]methyl ester of dimethylcarbamodithioic acid; 2-ethylhexyl ester of dimethylcarbamodithioic acid ester 2-[[[3,5b¡s(l,ld¡methylethyl)-4-hydroxyphen¡l]methyl]t¡o]acetic acid; methyl ester of 3-(5-chloro2Hbenzotriazol-2-yl)-5-(l,l-dimethyl)-4-hydroxybenzenepropanoic acid; 4-butyl-2,6-bis(l,l-dimet¡let¡l)phenol; 2,6-bis(l,l-dimet¡let¡l)-4-(2-propene-l-¡l)-phenol; ester 2-(l,l-dimethylethyl)-4-[l-[3-(l,ldimethylethyl)-4-hydroxyphenyl]-l-methylethyl] phenyl bis(4-nonylphenylic) phosphoric acid; 4,4'- (2,4,8,10tetraoxaespiro[5,5]undecano-3,9-diyl)bis[2,6-bis(l,l-dimethylethyl) phenol]; octyl ester of 3-(5chloro-2H-benzotriazole-2-l)-5-(l,l-dimethl)-4-hydroxybenzenepropanoic acid;nitrilotry-2,1ethanodyl ester of 3,5-bis(l,l-dimeth¡let¡l)-4-hydroxybenzenepropanoic acid; 4,4'-thiobis[2,6-bis(l,ldimethylethyl)-phenol; 4,4'-(l-methylene)bis[2,6-b¡s(l,ld¡methylethyl)-phenol; l,l',l-[(2,4,6-trioxo-l,3,5triazine-l,3,5(2H, 4H, 6H)-triyl)tri-2,l-ethanodiyl] acid ester 3,5-bis (l,l-dimethyl)-4hydroxybenzenepropanoic acid; 2,6-bis(l-methylethyl)-phenol; 2,6-diethylphenol; 2-ethyl-6-methylphenol; 3, 3', 5,5'tetramethyl-[l,l'-biphenyl]-4,4'-diol; 3,4-dihydro-2,2,5,7,8-pentamet¡l-2H-l-benzop¡ran-6-ol; 2,2'methylenobis [4-methyl-6-(l-methylcyclohex¡l)phenol; 3,5-bis(l,l-dimethylethyl)-[l,l'-biphenyl]-4-ol; 4-(1,1dimethylethyl)-2,6-dimethylphenol; 2,3,4,6-tetramethylphenol; 2,2'-(2-methylprop¡l¡dene)-bis[4,6-d¡met¡lphenol]; and mixtures thereof.; 5. The process in accordance with any of the above claims, characterized because the wash liquor comprises from 0.1 ppm to 100 ppm, preferably from 0.15 ppm to 50 ppm of the antioxidant.

6. The process according to any preceding claim, characterized in that the laundry detergent composition comprises a non-soap surfactant, wherein the non-soap surfactant is preferably selected from non-soap anionic surfactant, non-ionic surfactant, amphoteric surfactant, cationic surfactant, or a mixture thereof, preferably wherein the laundry detergent composition comprises between 10% and 60%, more preferably between 20% and 55% by weight of the laundry detergent composition of the non-soap surfactant.

7. The process according to any preceding claim, characterized in that the non-soap anionic surfactant comprises linear alkylbenzene sulfonate, alkoxylated alkyl sulfate, or a mixture thereof, more preferably a mixture thereof, wherein the ratio of linear alkylbenzene sulfonate to alkoxylated alkyl sulfate, preferably the weight ratio of linear alkylbenzene sulfonate to ethoxylated alkyl sulfate is from 1:2 to 20:1, preferably from 1.1:1 to 15:1, more preferably from 1.2:1 to 10:1, even more preferably from 1.3:1 to 5:1, most preferably from 1.4:1 to 3:1, preferably wherein the laundry detergent composition comprises from 5% to 50%, preferably from 15% and 45%, with greater preference between 25% and 40%, with the highest preference between 30% and 40% by weight of the detergent composition of the non-soap anionic surfactant.

8. The process according to any preceding claim, characterized in that the laundry detergent composition comprises between 0% and 10%, preferably between 0.01% and 8%, more preferably between 0.1% and 6%, most preferably between 0.15% and 4% by weight of the laundry detergent composition of a nonionic surfactant, preferably wherein the nonionic surfactant is selected from alcohol alkoxylate, an oxosynthesized alcohol alkoxylate, Guerbet alcohol alkoxylates, alkylphenol alcohol alkoxylates, or a mixture thereof.

9. The process according to any preceding claim, characterized in that the detergent composition comprises between 1.5% and 20%, more preferably between 2% and 15%, even more preferably between 3% and 10%, most preferably between 4% and 8% by weight of the liquid detergent composition of soap, preferably a fatty acid salt, more preferably a neutralized amine fatty acid salt, wherein the amine is preferably an alkanolamine, more preferably selected from monoethanolamine, diethanolamine, triethanolamine or a mixture thereof, more preferably monoethanolamine.

10. The process according to any preceding claim, characterized in that the laundry detergent comprises an ingredient selected from the list comprising cationic polymers, polyester terephthalates, graft amphiphilic copolymers, carboxymethylcellulose, enzymes, perfumes, encapsulated perfumes, bleach, or a mixture thereof.

11. The process according to any preceding claim, characterized in that the further treatment aid comprises an additional chelating agent, preferably an additional chelating agent selected from phosphonates, aminocarboxylates, aminophosphonates, polyfunctionally substituted aromatic chelating agents, or mixtures thereof, more preferably an additional chelating agent selected from DTPA (diethylenetriaminepentaacetic acid), HEDP (hydroxyethanediphosphonic acid), EDDS (ethylenediamine disuccinate), DTPMP (diethylenetriamine penta(methylenephosphonic acid)), EDTMP (ethylenediamine tetra(methylenephosphonic acid)), Tiron® (1,2-dihydroxybenzene-3,5-disulfonic acid), HPNO (2-pyridinol-N-oxide), MGDA (methylglycinediacetic acid), GLDA (glutamic-N,N-diacetic acid), EDTA (ethylenediamine tetraacetate), any suitable derivatives thereof, salts thereof, and mixtures thereof.

12. The process according to any of the preceding claims, characterized in that the laundry detergent composition comprises a toning dye.

13. The process according to any preceding claim, characterized in that at least one of the alkylated phenol antioxidant, hindered phenol antioxidant, or mixture thereof has a log D value at pH 7 equal to or greater than 2.

50.

14. The process according to any preceding claim, characterized in that the alkylated phenolic antioxidant or the hindered phenolic antioxidant is selected from the group consisting of 2,6-bis(l,l-dimethylethyl)-4-methylphenol; δ-tocopherol; linear or branched Ci-Cie alkyl esters of 3,5-bis(l,l-dimethylethyl)-4-hydroxybenzenepropanoic acid; and mixtures thereof.

15. The use of a process according to any preceding claim for reducing bad odor in fabrics in a wash liquor and characterized in that the fabrics comprise at least one source of bad odor and wherein the wash liquor comprises a metal ion, preferably Cu2+, at a concentration equal to or greater than 50 ppb.