Method of cleaning hydrophobic soil from textiles

Abstract

A hydrophobic soil can be removed from a textile using a wash medium comprising water, one or more surfactant and a solvent. The solvent comprises one or more silicone-containing solvents. The amount of the solvent is from 0.1 to 10 weight percent based on total weight of the wash medium, or the weight ratio of the solvent to the one or more surfactant is greater than 2:1, preferably greater than 1:5, more preferably greater than 1:8. The wash medium can be formed by diluting with water a detergent. The detergent comprises one or more surfactants and a solvent comprising one or more silicone-containing solvents. The weight ratio of the solvent to the one or more surfactant is greater than 2:1, preferably greater than 1:5, and more preferably greater than 1:8.

Description

85597-WO-PCT (DC60220PCT) Method of Cleaning Hydrophobic Soil from Textiles FIELD OF THE INVENTION

[0001] The invention is in the field of cleaning of textiles (e.g., particularly, woven and non-woven fabrics or cloths, fibers, and the like). BACKGROUND OF THE INVENTION

[0002] Hydrophobic stains on textiles can be challenging to remove in typical aqueous based wash media. Such hydrophobic stains can include cosmetics, greasy soils, or the like. Thus, dry cleaning and other non-aqueous laundry methods are often used for such stains. But these methods can be specialized and expensive.

[0003] A need remains for an efficient cleaning technique for hydrophobic stains consistent with standard aqueous laundry methods. SUMMARY OF THE INVENTION

[0004] Disclosed herein is a method comprising washing a textile with a wash medium. The wash medium comprises water, one or more surfactant and a solvent. The solvent comprises one or more silicone-containing solvents. The amount of the solvent is from 0.1 to 10 weight percent based on total weight of the wash medium, or the weight ratio of the solvent to the one or more surfactant is greater than 2:1, preferably greater than 1:5, more preferably greater than 1:8.

[0005] Also disclosed is a detergent for use in removing hydrophobic soils from a textile in an aqueous wash medium, wherein the detergent comprises one or more surfactants and a solvent comprising one or more silicone-containing solvents. The weight ratio of the solvent to the one or more surfactant is greater than 2:1, preferably greater than 1:5, and more preferably greater than 1:8. DETAILED DESCRIPTION OF THE INVENTION

[0006] The use of silicone-containing solvents in relatively high amounts in an aqueous wash medium has been discovered to improve removal of hydrophobic stains.

[0007] Disclosed herein is a method comprising providing a textile to be washed, such as a textile including a hydrophobic stain and washing the textile in an aqueous wash medium comprising a high amount a solvent which comprises, consists essentially of, or consists of a silicone-containing solvent or a silicone-based solvent. The silicone-containing solvent comprises repeat units of the structure: -Si(R)2-O- where R is a lower alkyl of, for example, 1, 2, 3, or 4carbon atoms. For example, R can be methyl. There silicone-containing solvent can include at least 2, at least 3, or at least 4 and up to 10, up to 8, up to 6 or up to 5 of the repeat units. For example, the silicone-based solvent can consist of or consist85597-WO-PCT (DC60220PCT) essentially of at least four -Si(R)2-O- repeat units in a cyclic structure formed by linked -Si- O- atoms, where each Si atom has two R groups bonded thereon. Examples of such cyclic silicone-based solvents are alkyl substituted cyclotetrasiloxane, an alkyl substituted cyclopentasiloxane or an alkyl substituted cyclohexasiloxane. The alkyl can be, for example, methyl. Specific cyclic silicone based solvents include decamethyl-cyclopentasiloxane, dodecamethyl-cyclohexasiloxane, octamethylcyclotetrasiloxane or mixtures thereof. The silicon-based solvent can consist of or consist essentially of linear or branched structures of the -Si(R)2-O- repeat units end capped with -Si(R)3. The solvent can include mixtures of more than one silicone-containing solvents or silicone-based solvents.

[0008] In addition to the silicon-containing or silicon-based solvents, the solvent can optionally include other lipophilic solvents such as one or more alkanes, such as, for example linear or branched alkane having at least 5, at least 7, or at least 9 and up to 20, up to 17, or up to 15 carbon atoms.

[0009] The aqueous wash medium the total wash composition used to wash the soiled textile. The aqueous wash medium comprises at least 90 weight percent water and from 0.1, from 0.5 or from 1 up to 10, up to 8, or up to 5 weight percent of the solvent based on total weight of the wash medium. The aqueous wash medium can comprise at least 90 weight percent water and from 0.1, from 0.5 or from 1 up to 10, up to 8, or up to 5 weight percent of the silicone-containing solvent based on total weight of the wash medium. The aqueous wash medium can comprise at least 90 weight percent water and from 0.1, from 0.5 or from 1 up to 10, up to 8, or up to 5 weight percent of the silicone-based solvent based on total weight of the wash medium.

[0010] The aqueous wash medium can also include one or more surfactants. A weight ratio of the solvent to the one or more surfactants can be at least 2:1, at least 5:1, at least 8:1, at least 10:1, at least 15:1, at least 20:1 up to 100:1, up to 50:1, or up to 30:1. A weight ratio of the silicone-containing solvent to the one or more surfactants can be at least 2:1, at least 5:1, at least 8:1, at least 10:1, at least 15:1, at least 20:1 up to 100:1, up to 50:1, or up to 30:1. A weight ratio of the silicone-based solvent to the one or more surfactants can be at least 2:1, at least 5:1, at least 8:1, at least 10:1, at least 15:1, at least 20:1 up to 100:1, up to 50:1, or up to 30:1. The surfactant can be present in an amount of from 0.01 or from 0.05 up to 1 up to 0.5, or up to 0.1 weight percent based on total weight of the wash medium. When provided in a detergent, the surfactant can be present in an amount of from 1, or from 2 up to 15 up to 10, or up to 8 weight percent based on total weight of the detergent.85597-WO-PCT (DC60220PCT)

[0011] Examples of anionic surfactants include sulfonates or sulfonic acid salts such as those having a formula R3SO3M wherein R3represents a hydrocarbyl group selected from the group consisting of straight or branched alkyl radicals having from 12 to 24 carbon atoms; and alkylphenyl radicals having from 9 to 15 carbon atoms in the alkyl group; and M is a salt-forming cation selected from the group consisting of Na, K, NH4, and mono-, di-, and trialkanol amines having 2 to 3 carbon atoms in the alkanol groups. Additionally, suitable anionic surfactant may include one or more salts (e.g., sodium, potassium, ammonium, and substituted ammonium salts such as mono-, di- and triethanolamine salts) of anionic carboxylates and sarcosinates. Exemplary anionic sulfonate surfactants can include salts of C5-C20linear alkylbenzene sulfonates, such as dodecylbenzene sulfonic acid (DDBSA), alkyl ester sulfonates, C6-C22 primary or secondary alkane sulfonates, C6-C24 olefin sulfonates, sulfonated polycarboxylic acids, alkyl glycerol sulfonates, fatty acyl glycerol sulfonates, fatty oleyl glycerol sulfonates, and any mixtures thereof. Exemplary anionic sulfates can include linear and / or branched primary and secondary alkyl sulfates, alkyl ethoxysulfates, fatty oleoyl glycerol sulfates, alkyl phenol ethylene oxide ether sulfates, C5-C17 acyl-N—(C1-C4 alkyl) and —N—(C1-C2 hydroxyalkyl) glucamine sulfates, and sulfates of alkylpolysaccharides, such as alkylpolyglucoside sulfates. Exemplary alkyl sulfates can include linear and branched primary C10-C18 alkyl sulfates. Exemplary alkyl ethoxysulfate surfactants can include C10- C18alkyl sulfates that have been ethoxylated with from 0.5 to 20 moles of ethylene oxide per molecule. Exemplary anionic carboxylates can include alkyl ethoxy carboxylates, and alkyl polyethoxy polycarboxylates.

[0012] Examples of non-ionic surfactants include a suitable nonionic surfactant may include alkyl ethoxylate condensation products of aliphatic alcohols with from 1 to 25 moles of ethylene oxide wherein the alkyl chain of the aliphatic alcohol can either be straight or branched, primary or secondary, and generally contains from 6 to 22 carbon atoms. Further suitable nonionic surfactants can include water soluble ethoxylated C6-C18 fatty alcohols and C6-C18 mixed ethoxylated / propoxylated fatty alcohols. For example, the ethoxylated fatty alcohols can be Cm-Cis ethoxylated fatty alcohols with a degree of ethoxylation of from 3 to 20. In some embodiments, mixed ethoxylated / propoxylated fatty alcohols can have an alkyl chain length of from 10 to 18 carbon atoms, a degree of ethoxylation of from 3 to 30, and a degree of propoxylation of from 1 to 10. In further embodiments, suitable nonionic surfactants can include those formed from the condensation of ethylene oxide with a hydrophobic base formed by the condensation of propylene oxide with propylene glycol. Preferred nonionic surfactants include ethoxylated 2-ethylhexanol, ethoxylated seed oils,85597-WO-PCT (DC60220PCT) butanol capped ethoxylated 2-ethylhexanol, and mixtures thereof. More preferred nonionic surfactants include secondary alcohol ethoxylates. Most preferred nonionic surfactants include fatty alcohol polyglycol ethers.

[0013] Other optional components in the wash media (or in a detergent used to form the wash medium) include:

[0014] Alkaline sources. Examples of alkaline sources include, but are not limited to, carbonate-based alkalinity sources, including, for example, carbonate salts such as alkali metal carbonates; caustic-based alkalinity sources, including, for example, alkali metal hydroxides; other suitable alkalinity sources may include metal silicate, metal borate, and organic alkalinity sources. Exemplary alkali metal carbonates that can be used include, but are not limited to, sodium carbonate, potassium carbonate, bicarbonate, sesquicarbonate, and mixtures thereof. Exemplary alkali metal hydroxides that can be used include, but are not limited to sodium, lithium, or potassium hydroxide. Exemplary metal silicates that can be used include, but are not limited to, sodium or potassium silicate or metasilicate. Exemplary metal borates include, but are not limited to, sodium or potassium borate. Other sources can also include Organic alkalinity sources such as amines, alkanolamines, and amino alcohols. The alkalinity may be added to the composition in any form known in the art, including as solid beads, granulated or particulate form, dissolved in an aqueous solution, or a combination thereof. In general, in a detergent the alkalinity source(s) can be present in an amount between greater than 0, from 0.01, from 0.05, from 0.1, % up to 20, up to 15, up to 10 or up to 5% by weight, based on total weight of the cleaning composition provided in detergent form. In the wash medium, the alkalinity source can be present in amounts of 0, from 10, from 50, from 100 parts per million (ppm) by weight up to 4000, up to 3000, up to 2000, up to 1500, or up to 100 ppm based on total weight of the wash medium. The pH of the wash medium can be greater than 7.

[0015] Co-builder. Examples of co-builders include, but are not limited to organic phosphonates, such as an organic-phosphonic acid and alkali metal salts thereof. In a laundry detergent the amount of cobuilder can be 0 or can be from 0.02, from 0.05, from 0.08, from 0.1 or from 0.12 up to 10, up to 8, up to 5, up to 4, up to 2, or up to 1 weight percent based on the total weight of the laundry detergent composition. In the wash medium, the amount of cobuilder can be from 0, from 0.1, from 0.5, or from 1 up to 100, up to 50, up to 10, up to 5 parts per million by weight based on total weight of the wash medium.

[0016] Chelating Agent(s) (also referred to as chelator(s)). Examples of chelating agents or chelators include N-hydroxyethylaminodiacetic acid; hydro85597-WO-PCT (DC60220PCT) xyethylenediaminetetraacetic acid, nitrilotriacetic acid (NTA); methylglycinediacetic acid (MGDA); 2-hydroxyethyliminodiacetic acid (HEIDA); ethylenediaminetetraacetic acid (EDTA); N-hydroxyethyl-ethylenediaminetriacetic acid (HEDTA); diethylenetriammepentaacetic acid (DTPA); alanine-N,N-diacetic acid; trisodium methylglycine diacetate (MGDA), tetrasodium glutamate diacetate (GLDA), ethylenediamine-N,N′-disuccinic acid (EDDS), polyaspartic acid, iminodisuccinic acid (IDS), and trisodium citrate, and mixtures thereof can be present. Preferred amino carboxylates include the sodium salt of EDTA, MGDA, and HEIDA. The total content of chelator(s) present in a laundry detergent composition can be 0% to about 10%, about 0.02% to about 8%, about 0.05% to about 5%, about 0.08% to about 4%, about 0.1% to about 2%, or about 0.12% to about 1% by weight based on the total weight of the laundry detergent composition. In the wash medium, the amount of chelating agents can be from 0, from 0.1, from 0.5, or from 1 up to 100, up to 50, up to 10, up to 5 parts per million by weight based on total weight of the wash medium.

[0017] Perfume Agent(s) to provide fragrance can be present. In a detergent the perfume agent can be present in an amount of: 0 to 10 wt % (preferably, 0.001 to 5 wt %; more preferably, 0.005 to 3 wt %; most preferably, 0.01 to 2.5 wt %), based on the weight of the laundry detergent formulation. In the wash medium, the amount of perfume agents can be from 0, from 0.1, from 0.5, or from 1 up to 100, up to 50, up to 10, up to 5 parts per million by weight based on total weight of the wash medium.

[0018] Viscosity or rheology modifiers. Examples of viscosity or rheology modifiers include aqueous miscible organic solvents with non-limiting examples of ethanol; propylene glycol; glycerol; 1,3-butanediol; 1,3-hexanediol; dipropylene glycol and mixtures thereof. Propylene glycol can be preferred. The viscosity or rheology modifier can adjust the viscosity of a detergent composition to a range of about 100 millipascal-seconds (mPa-s) to about 4000 mPa-s, about 150 mPa-s to about 3000 mPa-s, about 200 mPa-s to about 2500 mPa-s, about 225 mPa-s to about 2000 mPa-s, or about 250 mPa-s to about 1500 mPa-s (measured at 21° C. using a standard, shear rheometer, such as available from Anton Parr). The amount of viscosity or rheology modifier. In a laundry detergent composition can be from 0, from 0.01, from 0.1, from 0.5, from 1, from 2 up to 25 up to 20, up to 15, up to 10, up to 5 weight percent based on total weight of the detergent.

[0019] The solvent can be introduced into the wash medium as a component of a detergent, as a separate additive, or as a pre-treatment on a hydrophobic soil region on the textile. When introduced as a component of a detergent, the solvent can comprise from 20,85597-WO-PCT (DC60220PCT) from 25, from 30, from 35, or from 40 up to 90, up to 80, up to 70, up to 50 or up to 50 weight percent based on total weight of the detergent. EXAMPLES

[0020] Various formulations of wash media having the compositions as shown in Table 1 were evaluated.

[0021] The nonionic surfactant was TERGITOL™ 25-7 Surfactant (Alcohols, C12- 15, ethoxylated with an average of 7 moles of ethylene oxide, CAS 68131-39-5). The anionic surfactant was Biosoft™ D-40 (DDBSA). The solvent was octamethylcyclotetrasiloxane (D4), decamethyl-cyclopentasiloxane (D5), dodecamethyl-cyclohexasiloxane (D6), or Isopar L™ hydrocarbon. The caustic used was 50% sodium hydroxide in water. For certain samples 0.1 Molar sodium carbonate was used. For certain samples an additional solvent of propylene glycol was used. For certain samples ACUSOL™ 845 Polymer was included as an optional dispersant. For Example 7, swatches of the material bearing the soil was pretreated with 1 milliliter of the solvent, D5, per 2.25 inch x 2.25 inch textile swatch and allowed to set for 15 minutes.85597-WO-PCT (DC60220PCT) Table 1 Amount of component in weight percent in aqueous wash medium Solvent 0.1 M l™

[0000] e samp e ormu a ons were es ed on abrc swa c es bear ng one o e following soils: Soil 1 Generic Brand Long-lasting Foundation on Cotton – Heavy soil Soil 2 50% Beef Lard 50% Beef Fat on Cotton (CFT-C-S163s) Soil 3 Generic Brand Regular Liquid Foundation on Cotton – Light Soil Soil 4 Generic Brand Long-lasting Foundation on Cotton – Light Soil Soil 5 Generic Brand Normal Lipstick on Cotton – Light Soil Cleaning Procedure

[0023] A tergotometer(Terg-O-Tometer, Model 7243ES by US Testing Company)bath was filled with 1 liter (L) of prepared 5 gpg (grains per gallon) hard water. The equipment is then turned on and the bath heated to the desired temperature (25 °C, 40 °C or 60 °C) and agitation set at 100 rotations per minute (rpm). The detergent package and the solvent additive (when added separately from the detergent) were added to the bath when the bath set temperature was reached. Once the detergent and solvent additive were added, the bath solutions were agitated for 2 minutes to ensure complete mixing of the detergent package. Triplicates of the soiled swatches were put in each of the pots. Ten minutes of agitation (wash cycle) was used. After the wash cycle, the washed swatches were then put in85597-WO-PCT (DC60220PCT) room temperature 5gpg hard water baths for rinsing. The swatches were swished around for ~10-15 seconds. The rinsing process was repeated 2 more times for a total of 3 rinses. To remove the excess water from the rinsed swatches, they were put in a salad spinner and allowed to spin for about 1-2mins. Finally, the rinsed swatches were spread out flat on paper towels and allowed to dry overnight.

[0024] Measurement of the detergency of the formulations was determined colorimetrically on a Hunter ColorQuest XE colorimeter. All the swatches used were read on the Colorimeter using the L*, a*, b* values with the reflectance at 460nm BEFORE and AFTER the washing. Where measurements with the subscript “w” represent the washed samples and those with subscript “s” represent the unwashed stained samples. The ΔE was calculated using the following equation: ^^ = ^^^^ − ^^^^ + ^^^ − ^^^^ + ^^^ − ^^^^A higher value of delta

[0025] The results are shown in Table 2. As can be seen using the silicone-based solvent in relatively high amounts or in weight ratios of solvent:surfactant of at least 2:1 provide improved cleaning. Sample 10 shows that linear or branched alkanes can also provide some cleaning benefit and that thus they could be used in combination with the silicone-based solvent. Table 2 Weight Wt% ratio ^^ , il85597-WO-PCT (DC60220PCT) not Pretreate calculate 7 D5 d 4 3 6, e the wash medium comprises water, one or more surfactant and a solvent comprising one or more silicone-containing solvents, preferably one or more silicone-based solvents, wherein the amount of the solvent in the wash medium is from 0.1 to 10, preferably 0.5 to 8, more preferably 1 to 5 weight percent based on total weight of the wash medium, or the weight ratio of the solvent to the one or more surfactant is greater than 2:1, preferably greater than 1:5, more preferably greater than 1:8.

[0028] Aspect 2. The method of Aspect 1 wherein the solvent consists essentially of the one or more silicone-based solvent.

[0029] Aspect 3. The method of Aspect 1 wherein the solvent further comprises one or more linear or branched alkane having 5 to 20, preferably 7 to 17, more preferably 9 to 15 carbon atoms.

[0030] Aspect 4. The method of any of the previous Aspects wherein the solvent comprises a cyclic siloxane, a linear siloxane, or a mixture of two or more thereof.

[0031] Aspect 5. The method of Aspect 4 wherein the cyclic siloxane is an alkyl substituted cyclotetrasiloxane, an alkyl substituted cyclopentasiloxane or an alkyl substituted cyclohexasiloxane.

[0032] Aspect 6. The method of Aspect 4 or 5 wherein the linear siloxane is an alkyl substituted disiloxane, an alkyl substituted trisiloxane, an alkyl substituted tetrasiloxane or an alkyl substituted decasiloxane.

[0033] Aspect 7. The method of claim 5 or 6, wherein the alkyl is methyl.

[0034] Aspect 8. The method of any one of Aspects 4 to 7, wherein the cyclic siloxane is decamethyl-cyclopentasiloxane, dodecamethyl-cyclohexasiloxane, octamethylcyclotetrasiloxane or mixtures thereof.85597-WO-PCT (DC60220PCT)

[0035] Aspect 9. The method of any one of Aspects 4 to 8 wherein the linear siloxane is hexamethyldisiloxane, octamethyltrisiloxane, decamethyltetrasiloxane, docecamethylpentasiloxane or mixtures thereof.

[0036] Aspect 10. The method of any one of the previous Aspects, wherein the solvent and the surfactant are provided as a detergent and diluted with water to form the wash medium.

[0037] Aspect 11. The method of any one of Aspects 1 to 10, wherein the solvent is applied to a hydrophobic soil on the textile before providing the water and one or more surfactant to form the wash medium.

[0038] Aspect 12. A detergent for use in removing hydrophobic soils from a textile in an aqueous wash medium, wherein the detergent comprises one or more surfactants and a solvent comprising one or more silicone-based solvents, wherein the weight ratio of the solvent to the one or more surfactants is greater than 2:1, preferably greater than 1:5, more preferably greater than 1:8.

[0039] Aspect 13. The detergent of Aspect 12, wherein the solvent consists essentially of the one or more silicone-based solvent.

[0040] Aspect 14. The detergent of Aspect 12 or 13, wherein the solvent comprises a cyclic siloxane, a linear siloxane, or a mixture of two or more thereof.

[0041] Aspect 15. The detergent of Aspect 14, wherein the cyclic siloxane is an alkyl unsubstituted cyclotetrasiloxane, an alkyl substituted cyclopentasiloxane or an alkyl substituted cyclohexasiloxane.

[0042] Aspect 16. The detergent of Aspect 14 or 15 wherein the linear siloxane is an alkyl substituted disiloxane, an alkyl substituted trisiloxane, an alkyl substituted tetrasiloxane or an alkyl substituted decasiloxane.

[0043] Aspect 17. The detergent of Aspect 15 or 16, wherein the alkyl is methyl.

[0044] Aspect 18. The detergent of any one of Aspects 14 to 17, wherein the cyclic siloxane is decamethyl-cyclopentasiloxane, dodecamethyl-cyclohexasiloxane, octamethylcyclotetrasiloxane or mixtures thereof.

[0045] Aspect 19. The detergent of any one of Aspects 14 to 18, wherein the linear siloxane is hexamethyldisiloxane, octamethyltrisiloxane, decamethyltetrasiloxane, docecamethylpentasiloxane or mixtures thereof.

[0046] Aspect 20. The detergent of any one of Aspects 10-19, further comprising one or more of an alkalinity source, a co-builder, a perfume agent, or a rheology modifier.85597-WO-PCT (DC60220PCT)

[0047] All ranges disclosed herein are inclusive of the endpoints, and the endpoints are independently combinable with each other (e.g., ranges of “up to 25 wt.%, or, more specifically, 5 wt.% to 20 wt.%”, is inclusive of the endpoints and all intermediate values of the ranges of “5 wt.% to 25 wt.%,” etc.). Moreover, stated upper and lower limits can be combined to form ranges (e.g., “at least 1 or at least 2 weight percent” and “up to 10 or 5 weight percent” can be combined as the ranges “1 to 10 weight percent”, or “1 to 5 weight percent” or “2 to 10 weight percent” or “2 to 5 weight percent”).

[0048] The disclosure may alternately comprise, consist of, or consist essentially of, any appropriate components herein disclosed. The disclosure may additionally, or alternatively, be formulated so as to be devoid, or substantially free, of any components, materials, ingredients, adjuvants or species used in the prior art compositions or that are otherwise not necessary to the achievement of the function and / or objectives of the present disclosure.

[0049] All cited patents, patent applications, and other references are incorporated herein by reference in their entirety. However, if a term in the present application contradicts or conflicts with a term in the incorporated reference, the term from the present application takes precedence over the conflicting term from the incorporated reference.

[0050] Unless specified to the contrary herein, all test standards are the most recent standard in effect as of the filing date of this application, or, if priority is claimed, the filing date of the earliest priority application in which the test standard appears.

Claims

85597-WO-PCT (DC60220PCT) What is claimed is:

1. A method comprising washing a textile with a wash medium, where the wash medium comprises water, one or more surfactant and a solvent comprising one or more silicone-containing solvents, wherein the amount of the solvent in the wash medium is from 0.1 to 10, preferably 0.5 to 8 weight percent based on total weight of the wash medium, or the weight ratio of the solvent to the one or more surfactant is greater than 2:

1.

2. The method of claim 1, wherein the solvent consists essentially of the one or more silicone-based solvent.

3. The method of claim 1, wherein the solvent further comprises one or more linear or branched alkane having 5 to 20 carbon atoms.

4. The method of any of the previous claims, wherein the solvent comprises a cyclic siloxane, a linear siloxane, or a mixture of two or more thereof.

5. The method of claim 4, wherein the cyclic siloxane is an alkyl substituted cyclotetrasiloxane, an alkyl substituted cyclopentasiloxane or an alkyl substituted cyclohexasiloxane.

6. The method of claim 4 or 5 wherein the linear siloxane is an alkyl substituted disiloxane, an alkyl substituted trisiloxane, an alkyl substituted tetrasiloxane or an alkyl substituted decasiloxane.

7. The method of any one of the previous claims, wherein the solvent and the surfactant are provided as a detergent and diluted with water to form the wash medium.

8. The method of any one of claims 1 to 7, wherein the solvent is applied to a hydrophobic soil on the textile before providing the water and one or more surfactant to form the wash medium.

9. A detergent for use in removing hydrophobic soils from a textile in an aqueous wash medium, wherein the detergent comprises one or more surfactants and a solvent comprising one or more silicone-based solvents, wherein the weight ratio of the solvent to the one or more surfactants is greater than 2:

1.

10. The detergent of claim 9, wherein the solvent consists essentially of the one or more silicone-based solvent.

11. The detergent of claim 9 or 10, wherein the solvent comprises a cyclic siloxane, a linear siloxane, or a mixture of two or more thereof.85597-WO-PCT (DC60220PCT) 12. The detergent of claim 11, wherein the cyclic siloxane is an alkyl substituted cyclotetrasiloxane, an alkyl substituted cyclopentasiloxane or an alkyl substituted cyclohexasiloxane and the linear siloxane is an alkyl substituted disiloxane, an alkyl substituted trisiloxane, an alkyl substituted tetrasiloxane or an alkyl substituted decasiloxane.

13. The detergent of claim 12, wherein the alkyl is methyl.

14. The detergent of claim 12, wherein the cyclic siloxane is decamethyl- cyclopentasiloxane, dodecamethyl-cyclohexasiloxane, octamethylcyclotetrasiloxane or mixtures thereof and the linear siloxane is hexamethyldisiloxane, octamethyltrisiloxane, decamethyltetrasiloxane, docecamethylpentasiloxane or mixtures thereof.

15. The detergent of any one of claims 9-14, further comprising one or more of an alkalinity source, a co-builder, a perfume agent, or a rheology modifier.

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