Detergent composition

Abstract

The present invention relates to a detergent composition comprising: (a) 1 to 40 weight percent of a secondary alkyl sulfonate surfactant having an average of 15 to 18 carbon atoms in the linear alkane chain; (b) 1 to 40 weight percent of a nonionic surfactant; and (c) 0.01 to 8 weight percent of an alkyl hydroxysultaine co-surfactant; wherein the total weight ratio of the total weight of the anionic surfactant to the total weight of the nonionic surfactant ranges from 30:1 to 1:2; and wherein the hydroxysultaine co-surfactant has the formula: R-N + (CH3)2‑CH2‑CH(OH)‑CH2‑SO3 ‑ M + , wherein R is an alkyl chain having C10-C18 and M is any suitable cationic counterion; The present invention also relates to a method, preferably a domestic method for treating fabrics.

Description

Technical Field

[0001] The present invention relates to detergent compositions. More particularly, the detergent compositions comprise a secondary alkyl sulfonate (SAS) surfactant having an average of 15 to 18 carbon atoms in the linear alkane chain, a nonionic surfactant, and an alkyl hydroxysulfobetaine cosurfactant. Background of the Invention

[0003] Surfactants comprise an oil-soluble hydrocarbon chain to which a water-solubilizing group is attached. Detergent compositions contain surfactants to remove soil from substrates. For example, laundry detergents contain surfactants to remove soil from clothes during the washing process. Many typical detergents contain a mixture of anionic and nonionic surfactants, primarily having C12 hydrocarbon chains.

[0004] SAS is well known in the art as a surfactant and has been used for many years in laundry and home care applications. SAS is advantageous because its relatively simple structure makes it readily available from non-petrochemical feedstocks. It does not require the use of hazardous raw materials such as benzene or ethylene oxide. Furthermore, it does not rely on green feedstocks (e.g., palm kernel oil or coconut oil), which are limited in terms of scale availability.

[0005] SAS is atypical of many typical detersive surfactants in that it is based on a longer (C14-17) alkyl chain hydrophobe. This means it can be derived from a number of green / natural raw materials that are not dependent on palm crops, particularly palm kernel oil.

[0006] However, it still provides good cleaning performance, excellent foaming properties, and is an excellent material for use in detergent products. It can be used with nonionic surfactants to improve product properties.

[0007] KR 2003 / 023394 (SK Chemicals) discloses SAS with alkyl ether sulfates, ethoxylated fatty alcohols and amine oxides.

[0008] However, there is a need for improved detergent compositions containing SAS and nonionic surfactants. The problem that exists is to find surfactant systems that provide improved cleaning. A particular problem is to improve the cleaning of solid or semi-solid fatty stains (such as tallow), especially at low temperatures.

[0009] Surprisingly, this problem can be solved by a combination of secondary alkyl sulfonate (SAS) surfactants having an average of 15 to 18 carbon atoms in the linear alkane chain and a nonionic surfactant and an alkylhydroxysulfobetaine cosurfactant. Summary of the Invention

[0010] The present invention relates to a detergent composition comprising:

[0011] a) 1 to 40 wt. %, preferably 2 to 30 wt. %, most preferably 3 to 15 wt. % of a secondary alkyl sulfonate surfactant having an average of 15 to 18 carbon atoms in the linear alkane chain;

[0012] b) 1 to 40 wt%, preferably 2 to 30 wt%, most preferably 3 to 15 wt% of a nonionic surfactant; and

[0013] c) 0.01 to 8 wt%, preferably 0.1 to 6 wt%, more preferably 0.25 to 5 wt%, most preferably 0.5 to 5 wt% of an alkylhydroxysultaine co-surfactant;

[0014] wherein the total weight ratio of the total weight of the anionic surfactants to the total weight of the nonionic surfactants is in the range of 30:1 to 1:2; and

[0015] The hydroxysulfobetaine cosurfactant has the formula:

[0016] R-N+(CH3)2-CH2-CH(OH)-CH2-SO3-M+,

[0017] wherein R is an alkyl chain having C10-C18, and M is any suitable cationic counterion.

[0018] Preferably greater than 50% by weight, preferably greater than 60% by weight, more preferably greater than 70% by weight, more preferably at least 75% by weight, more preferably at least 80% by weight, even more preferably at least 85% by weight, even more preferably at least 90% by weight, and most preferably at least 95% by weight of the alkyl chains of the secondary alkyl sulfonates are C15 to C18, preferably C15 to C17 secondary alkyl sulfonates.

[0019] Preferably, the alkyl chains of the secondary alkyl sulfonates are obtained from renewable sources, preferably from triglycerides.

[0020] Preferably, the total weight ratio of the total weight of anionic surfactants to the total weight of nonionic surfactants ranges from 25:1 to 1:2, preferably from 20:1 to 1:2, preferably from 15:1 to 1:2, preferably from 10:1 to 1:2, preferably from 10:1 to 2:3, preferably from 10:1 to >1:1, more preferably from 8:1 to >1:1, even more preferably from 6:1 to >1:1, even more preferably from 5:1 to >1:1, and most preferably from 4:1 to >1:1.

[0021] Preferably, the weight ratio of anionic and nonionic surfactants [(a) + (b)] to co-surfactant (c) is in the range of 2:1 to 100:1, preferably 4:1 to 50:1, most preferably 5:1 to 20:1.

[0022] Preferably, the hydroxysultaine surfactant has greater than 50 wt%, preferably greater than 60 wt%, more preferably greater than 70 wt%, more preferably at least 75 wt%, more preferably at least 80 wt% of the alkyl chains of the hydroxysultaine surfactant being C10-C16 alkyl chains.

[0023] Preferably, the nonionic surfactant is selected from alcohol alkoxylates (preferably alcohol ethoxylates), alkyl polyglucosides, alkyl polypentosides and nonionic biosurfactants. The most preferred nonionic surfactant is preferably selected from alcohol ethoxylates with a molar average of 5 to 9 ethoxylates and / or alcohol ethoxylates with a molar average of 7 to 14 ethoxylates.

[0024] Preferably, the composition may further comprise 1 to 40 wt%, preferably 2 to 30 wt%, most preferably 2 to 25 wt%, most preferably 2 to 20 wt% of one or more additional anionic surfactants (other than (a) secondary alkyl sulfonate surfactants); the additional anionic surfactants are preferably selected from primary alkyl sulfates, linear alkylbenzene sulfonates, alkyl ether sulfates, internal olefin sulfonates, alpha-olefin sulfonates, soaps, anionically modified APGs, furan-based anionic surfactants, anionic biosurfactants (e.g. rhamnolipids) and citrem, tatem and diacetyl tartrate of mono- and diglycerol, more preferably selected from primary alkyl sulfates, linear alkylbenzene sulfonates, alkyl ether sulfates, furan-based anionic surfactants and rhamnolipids.

[0025] Preferably, the composition comprises from 0.5 to 15 wt%, more preferably from 0.75 to 15 wt%, even more preferably from 1 to 12 wt%, most preferably from 1.5 to 10 wt% of a cleaning enhancer selected from anti-redeposition polymers, soil release polymers, alkoxylated polycarboxylates and mixtures thereof.

[0026] Preferably, the anti-redeposition polymer is an alkoxylated polyamine; and / or the soil release polymer is a polyester soil release polymer.

[0027] Preferably, the detergent composition is a laundry detergent composition, more preferably a laundry liquid detergent composition or a liquid unit dose detergent composition.

[0028] Preferably, the composition comprises one or more enzymes selected from the group consisting of lipase, protease, α-amylase, cellulase, peroxidase / oxidase, pectate lyase and mannanase, or mixtures thereof, more preferably lipase, protease, α-amylase, cellulase and mixtures thereof, wherein the content of each enzyme in the composition of the present invention is from 0.0001 wt% to 0.1 wt%.

[0029] In a second aspect, the present invention provides a method of treating fabrics, preferably a domestic method, comprising the steps of treating fabrics with an aqueous solution of 0.5 to 20 g / L of a detergent composition of the first aspect, preferably a laundry liquid detergent composition.

[0030] Preferably, in the method, the aqueous solution contains 0.1 to 1.0 g / L of the surfactants (a) and (b).

[0031] The method, preferably a domestic method carried out at home using household appliances, is preferably carried out at a wash water temperature of 280 to 335 K. The fabric is preferably soiled with sebum resulting from contact with human skin. Detailed Description of the Invention

[0033] As used herein, unless otherwise stated, the indefinite article "a" or "an" and the corresponding definite article "the" refer to at least one, or to one or more.

[0034] All enzyme levels refer to pure protein.

[0035] Weight % relates to the amount by weight of the ingredient based on the total weight of the composition.For charged surfactants (eg anionic surfactants), weight % is calculated based on the protonated form of the surfactant.

[0036] The formulation may be in any form, eg liquid, solid, powder, liquid unit dose. Preferably, the composition is a liquid detergent composition or a liquid unit dose detergent composition.

[0037] The formulation preferably has a pH of 3 to 10, more preferably 4 to 9, more preferably 5 to 7.5, most preferably 7 when dissolved in demineralised water at 20°C.

[0038] The integer "q" is a molar average.

[0039] Secondary alkyl sulfonates (SAS)

[0040] The secondary alkyl sulfonate (SAS) of the present invention has the following formula:-

[0041]

[0042] Where n+m=12 to 15, the average chain length is 15 to 18; preferably n+m=12 to 14, the molar average chain length is 15 to 17.

[0043] Secondary alkyl sulfonates (SAS) are described in HERA document Secondary Alkane Sulfonate 1st edition, April 1, 2005, edited by HW Stache, Anionic Surfactants Organic Chemistry (Surfactant Science Series vol 56, Marcel Dekker 1996) and references therein.

[0044] Secondary alkyl sulfonates can be prepared by reacting linear alkanes with sulfur dioxide and oxygen in the presence of water while irradiating with ultraviolet light. Secondary alkyl sulfonates (SAS) obtained by sulfoxidation are mixtures of closely related isomers and homologs of the sodium salt of secondary alkyl sulfonic acid. The primary alkyl sulfonate content is <1%. Sulfoxidation in the presence of UV light and water produces a mixture of approximately 90% monosulfonic acid and 10% disulfonic acid.

[0045] The linear paraffin feedstock can be obtained from triglycerides by catalytic hydroprocessing, as described in SL Douvartzides et al., Energies 2019, 12, 809 Green Diesel: Biomass Feedstocks, Production Technologies, Catalytic Research, Fuel Properties and Performance in Compression Ignition Internal Combustion Engines.

[0046] Hydrotreating involves hydrogenation and decarboxylation, decarbonylation or hydrodeoxygenation reactions, preferably decarboxylation.

[0047] Depending on the hydrotreating method used, the hydrotreating process can reduce the carbon chain length by 1 unit. Decarboxylation and decarbonylation reactions typically reduce the carbon chain length by 1 unit, for example:

[0048] R-COOH → RH decarboxylation, where R is an alkyl group

[0049] In this way, secondary alkyl sulfonates are produced from the alkyl chains of primarily C16 to C18 fatty acids from natural triglycerides, but with the loss of one carbon to produce primarily C15 to C17 straight chain alkanes. Preferably, the secondary alkyl sulfonates are greater than 80% by weight composed of C15 and C17 chains.

[0050] The weight % of SAS was calculated as protonated species.

[0051] Preferably, the alkyl chains of the secondary alkyl sulfonates are obtained from renewable sources, preferably from triglycerides.

[0052] nonionic surfactants

[0053] The composition comprises from 1 to 40 wt%, preferably from 2 to 30 wt%, most preferably from 3 to 15 wt% of a nonionic surfactant.

[0054] The nonionic surfactant may be selected from any typical detergent-type nonionic surfactant. Preferred nonionic surfactants include alcohol alkoxylates (preferably ethoxylates), alkyl polyglucosides, alkyl polypentosides and nonionic biosurfactants.

[0055] Where the nonionic surfactant is an alcohol ethoxylate, it preferably has the formula:

[0056] R1-(OCH2CH2) q OH,

[0057] wherein R1 is preferably selected from a saturated or monounsaturated linear C10 to C18 alkyl chain, and wherein q is 4 to 20, preferably 5 to 12, more preferably 5 to 14.

[0058] Alcohol ethoxylates are discussed in Nonionic Surfactants: Organic Chemistry, edited by Nico M. van Os (Marcel Dekker 1998), Surfactant Science Series, published by CRC Press.

[0059] Alcohol ethoxylates can be synthesized by ethoxylation of alkyl alcohols via the following reaction:

[0060] R1-OH+q ethylene oxide → R1-O-(CH2CH2O) q -H

[0061] It is preferred that R is derived from a natural or biosynthetic source (eg, vegetable oil or algae oil).Alkyl alcohols can be prepared by transesterifying triglycerides to methyl esters followed by distillation and hydrogenation.

[0062] Such ethoxylation reactions are described in Non-Ionic Surfactant Organic Chemistry (Editor: NMVanOs), Surfactant Science Series Volume 72, CRC Press.

[0063] Preferably, the reaction is catalyzed using a base such as NaOH, KOH, or NaOCH3. Even more preferred are catalysts that provide a narrower ethoxylate distribution than NaOH, KOH, or NaOCH3. Preferably, these narrower distribution catalysts include Group II bases such as barium dodecanoate; Group II metal alkoxides; and Group II hydrotalcites, such as those described in WO2007 / 147866. Lanthanides may also be used. Such narrower distribution alcohol ethoxylates are available from Azo Nobel and Sasol.

[0064] Preferably, the ethoxyl distribution has greater than 70 wt%, more preferably greater than 80 wt% RO-(CH2CH2O) x -H to RO-(CH2CH2O) y -H range alcohol ethoxylates RO-(CH2CH2O) q -H, where q is the molar average degree of ethoxylation, and x and y are absolute numbers, where x = qq / 2 and y = q+q / 2.

[0065] For example, when q=10, then greater than 70% by weight of the alcohol ethoxylate should consist of ethoxylates having 5, 6, 7, 8, 9, 10, 11, 12, 13, 14 and 15 ethoxylate groups.

[0066] Preferred nonionic surfactants are preferably selected from alcohol ethoxylates having C12-C15 with a molar average of 5 to 9 ethoxylates and / or alcohol ethoxylates having C16-C18 with a molar average of 7 to 14 ethoxylates.

[0067] The alkyl polyglucoside (APG) can be any typical nonionic detergent APG, such as those described in "Alkyl Polyglucoside (APG) Surfactants and Their Properties: A Review" (Tenside Surfactants Detergents, September 2012, Vol. 49, No. 5, pp. 417-427). Preferably, the APG has a DP (degree of polymerization) between 1 and 2, most preferably between 1.2 and 1.8. The alkyl chain length is preferably between C10 and C16.

[0068] The alkyl polypentoside (APP) can be any typical nonionic detergent APP, especially where the C5 sugar is xylose, which is readily available from a variety of biomass sources. The length of the alkyl chain is preferably between C10 and C16. For example, a preferred material is APP sold under the trade name APPYCLEAN from Wheatoleo.

[0069] The total weight ratio of the total weight of the anionic surfactants to the total weight of the nonionic surfactants is in the range of 30:1 to 1:2.

[0070] Preferably, the total weight ratio of the total weight of anionic surfactants to the total weight of nonionic surfactants ranges from 25:1 to 1:2, preferably from 20:1 to 1:2, preferably from 15:1 to 1:2, preferably from 10:1 to 1:2, preferably from 10:1 to 2:3, preferably from 10:1 to >1:1, more preferably from 8:1 to >1:1, even more preferably from 6:1 to >1:1, even more preferably from 5:1 to >1:1, and most preferably from 4:1 to >1:1.

[0071] Alkyl hydroxysulfonyl betaine

[0072] Hydroxysulfobetaine cosurfactant has the formula

[0073] RN + (CH3)2-CH2-CH(OH)-CH2-SO3 - M +

[0074] Wherein R is an alkyl chain having C10-C18, and M is any suitable cationic counterion, such as Na + , K + Suitable commercial materials are Cola Teric LHS (from Colonial Chem) and Mackam LHS (from Solvay).

[0075] Preferably, the weight ratio of secondary alkyl sulfonate to alkylhydroxysulfobetaine co-surfactant is from 10:1 to 1.5:1, preferably from 9:1 to 2:1, more preferably from 8:1 to 5:2.

[0076] Preferred sources of alkyl chains used in surfactants

[0077] In addition to biosurfactants, many commercial surfactants are derived from fatty alcohol precursors. Therefore, the formation of linear alcohols is a central step in obtaining many commercial surfactants.

[0078] Linear alcohols suitable as an intermediate step in the preparation of surfactants such as APG and alcohol ethoxylates can be obtained from a number of different sustainable sources. These include:

[0079] primary sugar

[0080] Primary sugars, such as sucrose or sugar beets, are fermented to form bioethanol. The bioethanol is then dehydrated to form bioethylene, which can then be converted to olefins using processes such as the Shell Higher Olefin process or the Chevron Phillips Full Range process. These olefins can then be processed into linear alcohols through hydroformylation followed by hydrogenation.

[0081] Alternatively, ethylene can be converted directly to fatty alcohols via the Ziegler process.

[0082] An alternative method can be used that also utilizes primary sugars to form linear alcohols, and in which the primary sugars are microbially converted by algae to form triglycerides. These triglycerides are then hydrolyzed to linear fatty acids, which are then reduced to form linear alcohols.

[0083] biomass

[0084] Biomass, such as forest products, rice husks, and straw, can be processed into synthesis gas (synthesis gas) through gasification. These are processed into alkanes via the Fischer Tropsch reaction, which are then dehydrogenated to form alkenes. These alkenes can be processed in the same manner as the alkenes (primary sugars) described above.

[0085] An alternative approach converts the same biomass into polysaccharides by steam explosion, which can be enzymatically degraded into secondary sugars. These secondary sugars are then fermented to form bioethanol, which in turn is dehydrated to form bioethylene. This bioethylene is then processed into linear alcohols as described above for primary sugars.

[0086] waste plastics

[0087] Waste plastics are pyrolyzed to form pyrolysis oil. This is then fractionated to form linear alkanes, which are dehydrogenated to form olefins. These olefins are processed as described above for primary sugars.

[0088] Alternatively, the pyrolyzed oil is cracked to form ethylene, which is then processed by the same methods described above for [primary sugars] to form the desired olefins. The olefins are then processed to linear alcohols as described above for [primary sugars].

[0089] MSW (Municipal Solid Waste)

[0090] MSW is converted to syngas via gasification. From the syngas, it can be processed into alkanes as described above for biomass, or it can be converted to ethanol via an enzymatic process (e.g., the Lanzatech process) before being dehydrogenated to ethylene. Ethylene can then be converted to linear alcohols via the methods described above for primary sugars.

[0091] Synthesis gas can also be converted to methanol and then to ethylene, at which point the processes described for [primary sugars] convert them to the final fatty alcohols.

[0092] MSW can also be converted to pyrolysis oil by gasification and then fractionated to form alkanes. These alkanes are then dehydrogenated to form olefins and then linear alcohols.

[0093] Likewise, the organic fraction of MSW contains polysaccharides that can be enzymatically broken down into sugars, at which point they can be fermented to ethanol, dehydrated to ethylene, and converted to fatty alcohols via the pathways described above.

[0094] Ocean carbon

[0095] There are various carbon sources from marine flora such as seaweed and kelp. From these marine flora, triglycerides can be isolated from the source and then hydrolyzed to form fatty acids which are reduced to straight chain alcohols in the usual manner.

[0096] Alternatively, the feedstock can be separated into polysaccharides, which are enzymatically degraded to form secondary sugars. These can be fermented to form bioethanol and then processed as described above [for primary sugars].

[0097] waste oil

[0098] Waste oils (such as used cooking oils) can be physically separated into triglycerides, which are broken down to form straight-chain fatty acids and then straight-chain alcohols as described above.

[0099] Alternatively, used cooking oil can be subjected to the Neste process, whereby the oil is catalytically cracked to form bio-ethylene. This is then processed as described above [primary sugars].

[0100] Other preferred ingredients

[0101] Additional surfactants

[0102] The composition may comprise additional surfactants in addition to surfactants (a), (b) and (c).

[0103] Additional surfactants may include anionic surfactants.

[0104] Preferably, in the composition of the present invention, the total amount of additional surfactants other than those specified as surfactants (a), (b) and (c) in claim 1 is in the range of 0.5 to 20 wt.%, more preferably 1 to 16 wt.%, even more preferably 1.5 to 12 wt.%, most preferably 2 to 10 wt.%.

[0105] Preferably, the composition comprises from 0.5 to 20 wt%, more preferably from 1 to 16 wt%, even more preferably from 1.5 to 12 wt%, most preferably from 2 to 10 wt% of additional anionic surfactant.

[0106] Additional anionic surfactants

[0107] Preferably, the composition may further comprise from 1 to 40 wt%, preferably from 2 to 30 wt%, most preferably from 2 to 25 wt%, most preferably from 2 to 20 wt% of one or more additional anionic surfactants (other than (a) secondary alkyl sulfonate surfactants).

[0108] The additional anionic surfactant is preferably selected from the group consisting of primary alkyl sulfates, linear alkylbenzene sulfonates, alkyl ether sulfates, internal olefin sulfonates, α-olefin sulfonates, soaps, anionically modified APGs, furan-based anionic surfactants, anionic biosurfactants (preferably rhamnolipids) and citrates of mono- and diglycerol, tartaric acid esters of mono- and diglycerol and diacetyl tartaric acid esters of mono- and diglycerol, more preferably from the group consisting of primary alkyl sulfates, linear alkylbenzene sulfonates, alkyl ether sulfates, furan-based anionic surfactants and rhamnolipids.

[0109] Preferred additional anionic surfactants include primary alkyl sulfates, preferably C 10 -C 20 Alkyl sulfate, preferably lauryl sulfate. Primary alkyl sulfate is preferably in the form of a counterion, more preferably the counterion is sodium, potassium or ammonium ion. Examples of preferred materials include C 10 -C 20 Sodium alkyl sulfate, most preferably sodium lauryl sulfate.

[0110] Preferred additional anionic surfactants include linear alkylbenzene sulfonates.Linear alkylbenzene sulfonates are the neutralized form of linear alkylbenzene sulfonic acid.

[0111] Neutralization can be carried out with any suitable base.

[0112] Linear alkylbenzene sulfonic acid has the following structure:

[0113]

[0114] Wherein x+y=7, 8, 9 or 10. Preferably x+y=8 is present in more than 28 weight % of total LAS. Preferably x+y=9 is present in more than 28 weight % of total LAS. Weight is expressed in protonated form. It can be produced by various different approaches. Synthesis is discussed in Anionic Surfactants Organic Chemistry (Marcel Dekker, New York 1996) edited by HWStache. Linear alkylbenzene sulfonic acid can be prepared by sulfonation of linear alkylbenzene. Sulfation can be carried out with concentrated sulfuric acid, oleum or sulfur trioxide. Preferably, the linear alkylbenzene sulfonic acid is produced by the reaction of linear alkylbenzene with sulfur trioxide.

[0115] Linear alkylbenzenes can be produced by a variety of routes. Benzene can be alkylated with n-olefins using HF catalysts. Benzene can be alkylated with n-olefins in a fixed-bed reactor using solid acid catalysts such as aluminosilicates (DETAL process). Benzene can be alkylated with n-olefins using aluminum chloride catalysts. Benzene can be alkylated with n-chlorinated paraffins using aluminum chloride catalysts.

[0116] Preferred additional anionic surfactants include the alkyl ether sulfate surfactants of the formula:

[0117] RO(CH2CH2O) q SO3M

[0118] Where R is a saturated or monounsaturated C 10 -C 18 A linear alkyl chain, q is a molar average ethoxylation of 0.5 to 16, and M is a cation which can be, for example, a metal cation (eg, sodium, potassium, lithium, calcium, magnesium, etc.), ammonium, or a substituted ammonium cation.

[0119] Preferred alkyl ether sulfate surfactants include those wherein R is C 12 -C 15 an alkyl chain, most preferably lauryl; and wherein q in the above formula is from 0.5 to 3, most preferably from 2.5 to 3.5.

[0120] Other preferred alkyl ether sulfate surfactants include those wherein R is C 16 -C 18 Alkyl chain, most preferably monounsaturated C 16 -C 18 alkyl chain; and wherein q in the above formula is 5 to 15, most preferably 6 to 12.

[0121] Other preferred anionic surfactants include internal olefin sulfonates. Internal olefin sulfonate molecules are olefins or hydroxyalkanes containing one or more sulfonate groups. The sulfonate groups are non-terminal. Such materials are discussed in EP 3 162 872 A1.

[0122] Other preferred anionic surfactants include alpha olefin sulfonates. Alpha olefin sulfonates are mixtures of long chain sulfonates prepared by sulfonation of alpha olefins. Alpha olefin sulfonates have terminal sulfonic acid groups. Preferred alpha olefin sulfonates include sodium C12-C18 alpha olefin sulfonate.

[0123] Preferred additional anionic surfactants include soaps.Preferred soaps include C10-C20, preferably C12-C18 fatty acids neutralized with a suitable counterion (eg sodium, potassium or ammonium, preferably sodium).

[0124] Preferred additional anionic surfactants include anionically modified alkyl polyglucosides (APGs) (eg Suganate from Colonial Chemical).

[0125] Preferred additional anionic surfactants include anionic furan-type surfactants such as those disclosed in PCT / EP2020 / 061701 (unpublished at the time of filing), WO15 / 84813, WO17 / 79718 and WO17 / 79719.

[0126] Preferred additional anionic surfactants include any biosurfactant with anionic character, such as sophorolipids, trehalolipids and rhamnolipids. Preferred are monorhamnolipids and dirhamnolipids. Preferred alkyl chain lengths are C8 to C 12 The alkyl chain may be saturated or unsaturated. Preferably, the rhamnolipid is a di-rhamnolipid of the formula: Rha2C 8-12 C 8-12 .

[0127] Preferred additional anionic surfactants include citric acid esters of monoglycerol and diglycerol, tartaric acid esters of monoglycerol and diglycerol, and diacetyl tartaric acid esters of monoglycerol and diglycerol. These are described in WO2020 / 058088 (Unilever), Hasenhuettl, GL and Hartel, RW (eds.), Food Emulsifiers and Their Application 2008 (Springer) and Whitehurst, RJ (ed.) Emulsifiers in Food Technology 2008 (Wiley-VCH). Most preferred are diacetyl tartaric acid esters of monoglycerol and diglycerol based on monoglycerides having 1 to 2 diacetyl tartaric acid units per mole of surfactant.

[0128] More preferably, the preferred additional anionic surfactants are selected from primary alkyl sulfates, linear alkylbenzene sulfonates, alkyl ether sulfates, furan-based anionic surfactants and rhamnolipids.

[0129] Cleaning Enhancer

[0130] The composition preferably comprises from 0.5 to 15 wt. %, more preferably from 0.75 to 15 wt. %, even more preferably from 1 to 12 wt. %, most preferably from 1.5 to 10 wt. % of a cleaning enhancer selected from anti-redeposition polymers; soil release polymers; alkoxylated polycarboxylates as described in WO / 2019 / 008036 and WO / 2019 / 007636; and mixtures thereof.

[0131] Anti-redeposition polymers

[0132] Preferred anti-redeposition polymers include alkoxylated polyamines.

[0133] Preferred alkoxylated polyamines include alkoxylated polyethyleneimine and / or alkoxylated polypropyleneimine. The polyamine can be linear or branched. It can be branched to the extent that it is a dendrimer. The alkoxylation can generally be ethoxylation or propoxylation, or a mixture of the two. In the case where the nitrogen atoms are alkoxylated, the preferred average degree of alkoxylation is 10 to 30, preferably 15 to 25. A preferred material is ethoxylated polyethyleneimine, wherein the average degree of ethoxylation is 10 to 30, preferably 15 to 25, wherein the nitrogen atoms are ethoxylated.

[0134] Soil release polymers

[0135] Preferably, the soil release polymer is a polyester soil release polymer.

[0136] Preferred soil release polymers include those described in WO 2014 / 029479 and WO 2016 / 005338.

[0137] Preferably, the polyester based soil release polymer is a polyester according to formula (I):

[0138]

[0139] in

[0140] R 1 and R 2 Independently of each other, X-(OC2H4) n -(OC3H6) m , where X is C 1-4 Alkyl and preferably methyl, -(OC2H4) groups and -(OC3H6) groups are arranged block by block and the blocks consisting of -(OC3H6) groups are bonded to COO groups, or HO-(C3H6), and preferably independently of each other are X-(OC2H4) n -(OC3H6) m ,

[0141] n is based on a molar average number of 12 to 120 and preferably 40 to 50,

[0142] m is based on a molar average number of 1 to 10 and preferably 1 to 7, and

[0143] aBased on a molar average of 4 to 9.

[0144] Preferably, the polyester is provided as a reactive blend comprising:

[0145] A) 45 to 55 wt.% of the active blend of one or more polyesters according to formula (I)

[0146]

[0147] in

[0148] R 1 and R 2 Independently of each other, X-(OC2H4) n -(OC3H6) m , where X is C 1-4 Alkyl and preferably methyl, -(OC2H4) groups and -(OC3H6) groups are arranged block by block and the blocks consisting of -(OC3H6) groups are bonded to COO groups, or HO-(C3H6), and preferably independently of each other are X-(OC2H4) n -(OC3H6) m ,

[0149] n is based on a molar average number of 12 to 120 and preferably 40 to 50,

[0150] m is based on a molar average number of 1 to 10 and preferably 1 to 7, and

[0151] a is based on a molar average of 4-9, and

[0152] B) 10 to 30 weight percent of the active blend of one or more alcohols selected from the group consisting of ethylene glycol, 1,2-propylene glycol, 1,3-propylene glycol, 1,2-butylene glycol, 1,3-butylene glycol, 1,4-butylene glycol, and butanediol, and

[0153] C) 24 to 42% water by weight of the active blend.

[0154] Alkoxylated polycarboxylates

[0155] Alkoxylated polycarboxylates are obtainable by first reacting an aromatic polycarboxylic acid containing at least three carboxylic acid units or an anhydride derived therefrom, preferably an aromatic polycarboxylic acid containing three or four carboxylic acid units or an anhydride derived therefrom, more preferably containing three carboxylic acid units or an anhydride derived therefrom, even more preferably trimellitic acid or trimellitic anhydride, most preferably trimellitic anhydride, with an alcohol alkoxylate and, in a second step, reacting the resulting product with an alcohol or a mixture of alcohols, preferably a C16 / C18 alcohol.

[0156] enzymes

[0157] Preferably, enzymes such as lipases, proteases, alpha-amylases, cellulases, peroxidases / oxidases, pectate lyases and mannanases or mixtures thereof may be present in the formulation.

[0158] If enzymes are present, preferably they are selected from the group consisting of: lipases, proteases, alpha-amylases, cellulases and mixtures thereof.

[0159] If present, levels of each enzyme in the laundry compositions of the present invention range from 0.0001% to 0.1% by weight.

[0160] The level of enzyme present in the composition preferably relates to the level of the enzyme as pure protein.

[0161] Suitable lipases include those of bacterial or fungal origin. Include chemically modified or protein engineered mutants. Examples of useful lipases include the lipase from Humicola (Humicola) (synonym Thermomyces), for example from H. lanuginosa (T. lanuginosus) as described in EP 258068 and EP 305216 or from H. insolens (H. insolens) as described in WO 96 / 13580, Pseudomonas lipase, for example from Pseudomonas alcaligenes (P. alcaligenes) or Pseudomonas pseudoalcaligenes (P. pseudoalcaligenes) (EP 218272), Pseudomonas cepacia (P. cepacia) (EP 331 376), Pseudomonas stutzeri (P. stutzeri) (GB1,372,034), Pseudomonas fluorescens (P. fluorescens), Pseudomonas strain SD 705 (WO95 / 06720 and WO96 / 27002), P. wisconsinensis (WO96 / 12012), Bacillus lipases, for example, from B. subtilis (Dartois et al. (1993), Biochemica et Biophysica Acta, 1131, 253-360), B. stearothermophilus (JP 64 / 744992) or B. pumilus (WO91 / 16422). Other examples are lipase variants, such as WO92 / 05249, WO94 / 01541, EP 407 225, EP 260 105, those described in WO95 / 35381, WO96 / 00292, WO95 / 30744, WO94 / 25578, WO95 / 14783, WO95 / 22615, WO97 / 04079 and WO97 / 07202, WO00 / 60063.

[0162] Preferred commercially available lipases include Lipolase TM and Lipolase Ultra TM 、Lipex TM and Lipoclean TM (Novozymes A / S).

[0163] The present invention may be performed in the presence of a phospholipase classified as EC 3.1.1.4 and / or EC 3.1.1.32. As used herein, the term phospholipase is an enzyme that is active towards phospholipids.

[0164] Phospholipids, such as lecithin or phosphatidylcholine, are composed of glycerol esterified with two fatty acids at the outer (sn-1) and middle (sn-2) positions and esterified with phosphate at the third position; the phosphate can, in turn, be esterified to an amino alcohol. Phospholipases are enzymes involved in the hydrolysis of phospholipids. Several types of phospholipase activity can be distinguished, including phospholipase A1 and A2, which hydrolyze one fatty acyl group (at the sn-1 and sn-2 positions, respectively) to form lysophospholipids; and lysophospholipase (or phospholipase B), which can hydrolyze the remaining fatty acyl groups in lysophospholipids. Phospholipase C and phospholipase D (phosphodiesterase) release diacylglycerol or phosphatidic acid, respectively.

[0165] Proteases hydrolyze bonds within peptides and proteins, which, in the case of laundry, results in enhanced removal of stains containing proteins or peptides. Examples of suitable protease families include aspartic proteases; cysteine proteases; glutamic proteases; asparagine peptide cleavage enzymes; serine proteases and threonine proteases. Such protease families are described in the MEROPS peptidase database (http: / / merops.sanger.ac.uk / ). Preferred are serine proteases. More preferred are subtilase-type serine proteases. The term "subtilase" refers to a subgroup of serine proteases described in Siezen et al., Protein Eng. Med. Chem. Lett., 2001, 31, 43-5 and Siezen et al., Protein Science 6 (1997) 501-523. Serine proteases are a subgroup of proteases characterized by having a serine in the active site that forms a covalent adduct with the substrate. Subtilases can be divided into six subdivisions, namely the subtilisin family, the thermophilic protease family, the proteinase K family, the Lanbiotic peptidase family, the Kexin family, and the Pyrolysin family.

[0166] Examples of subtilases are those derived from Bacillus, such as Bacillus lentus, B. alkalophilus, B. subtilis, B. amyloliquefaciens, B. pumilus and B. gibsonii, described in US7262042 and WO09 / 021867, and subtilisin lentus, subtilisin Novo, subtilisin Carlsberg, B. licheniformis, subtilisin BPN', subtilisin 309, subtilisin 147 and subtilisin 168, described in WO89 / 06279, and protease PD138, described in (WO93 / 18140). Other useful proteases may be those described in WO92 / 175177, WO01 / 016285, WO02 / 026024 and WO02 / 016547. Examples of trypsin-like proteases are trypsin (e.g. of porcine or bovine origin) and the Fusarium protease described in WO89 / 06270, WO94 / 25583 and WO05 / 040372, and the chymotrypsin derived from Cellumonas described in WO05 / 052161 and WO05 / 052146.

[0167] Most preferably, the protease is subtilisin (EC 3.4.21.62).

[0168] Examples of subtilisins are those derived from Bacillus, such as B. lentus, B. alkalophilus, B. subtilis, B. amyloliquefaciens, Bacillus pumilus and Bacillus gibsonii, described in US7262042 and WO09 / 021867, and subtilisin lentus, subtilisin Novo, subtilisin Carlsberg, Bacillus licheniformis, subtilisin BPN', subtilisin 309, subtilisin 147 and subtilisin 168, described in WO89 / 06279, and protease PD138, described in (WO93 / 18140). Preferably, the subtilisin is derived from Bacillus, preferably Bacillus lentus, B. alkalophilus, B. subtilis, B. amyloliquefaciens, Bacillus pumilus and Bacillus gibsonii, described in US 6,312,936 Bl, US 5,679,630, US 4,760,025, US 7,262,042 and WO 09 / 021867. Most preferably, the subtilisin is derived from Bacillus gibsonii or Bacillus Lentus.

[0169] Suitable commercially available proteases include those sold under the trade names DuralaseTm, DurazymTm, Ultra, Ultra, Ultra, Ultra, and Those sold, all of which can be used as or (Novozymes A / S) for sale.

[0170] The present invention may use a cutinase classified as EC 3.1.1.74. The cutinase used according to the present invention may be of any origin. Preferably, the cutinase is of microbial origin, in particular of bacterial, fungal or yeast origin.

[0171] Suitable amylases (α and / or β) include those of bacterial or fungal origin. Chemically modified or protein engineered mutants are included. Amylases include, for example, α-amylases obtained from Bacillus, such as a special strain of Bacillus licheniformis described in more detail in GB 1,296,839, or a Bacillus strain disclosed in WO 95 / 026397 or WO 00 / 060060. Commercially available amylases are Duramyl Amylase, Glutathione Amylase, and / or Glutathione Amylase. TM Termamyl TM TermamylUltra TM 、Natalase TM 、Stainzyme TM 、Fungamyl TM and BAN TM (Novozymes A / S), Rapidase TM and Purastar TM (From Genencor International Inc.).

[0172] Suitable cellulases include those of bacterial or fungal origin. Include chemically modified or protein engineered mutants. Suitable cellulases include cellulases from Bacillus, Pseudomonas, Humicola, Fusarium, Thielavia, Acremonium, such as the fungal cellulases produced by Humicola insolens, Thielavia terrestris, Myceliophthora thermophila and Fusarium oxysporu disclosed in US 4,435,307, US5,648,263, US 5,691,178, US 5,776,757, WO89 / 09259, WO96 / 029397 and WO98 / 012307. Commercially available cellulases include Celluzyme TM 、Carezyme TM 、Celluclean TM 、Endolase TM 、Renozyme TM(Novozymes A / S), Clazinase TM and Puradax HA TM (Genencor International Inc.) and KAC-500(B) TM (Kao Corporation). Celluclean is preferred. TM .

[0173] Suitable peroxidases / oxidases include those of plant, bacterial or fungal origin. Chemically modified or protein engineered mutants are included. Examples of useful peroxidases include peroxidases from Coprinus, for example from C. cinereus, and variants thereof, such as those described in WO 93 / 24618, WO 95 / 10602 and WO 98 / 15257. Commercially available peroxidases include Guardzyme TM and Novozym TM 51004 (Novozymes A / S).

[0174] Other enzymes suitable for use are discussed in WO 2009 / 087524, WO 2009 / 090576, WO 2009 / 107091, WO 2009 / 111258 and WO 2009 / 148983.

[0175] Enzyme stabilizers

[0176] Any enzyme present in the composition may be stabilized using conventional stabilizers, for example polyols such as propylene glycol or glycerol, sugars or sugar alcohols, lactic acid, boric acid or boronic acid derivatives (e.g. aromatic borate esters) or phenylboronic acid derivatives (e.g. 4-formylphenylboronic acid), and the composition may be formulated as described, for example, in WO 92 / 19709 and WO 92 / 19708.

[0177] Other ingredients

[0178] The preparation may contain other ingredients.

[0179] Builder or complexing agent

[0180] The compositions may contain a builder or complexing agent.

[0181] Builder materials may be selected from 1) calcium sequestrant materials, 2) precipitating materials, 3) calcium ion exchange materials and 4) mixtures thereof.

[0182] Examples of calcium chelating agent builder materials include alkali metal polyphosphates, eg sodium tripolyphosphate, and organic chelating agents such as ethylenediaminetetraacetic acid.

[0183] The composition may also contain 0-10% by weight of a builder or complexing agent, such as ethylenediaminetetraacetic acid, diethylenetriaminepentaacetic acid, citric acid, alkyl- or alkenylsuccinic acid, nitrilotriacetic acid or other builders mentioned below.

[0184] More preferably, the laundry detergent formulation is a non-phosphate built laundry detergent formulation, ie contains less than 1 wt% phosphates.Most preferably, the laundry detergent formulation is non-built, ie contains less than 1 wt% builder.

[0185] If the detergent composition is an aqueous liquid laundry detergent, preferably monopropylene glycol or glycerol is present at a level of from 1 to 30% by weight, most preferably from 2 to 18% by weight, to provide a formulation with a suitable pourable viscosity.

[0186] fluorescent agent

[0187] The composition preferably comprises a fluorescent agent (optical brightener).

[0188] Fluorescent agents are well known and many such fluorescent agents are commercially available. Typically, these fluorescent agents are provided and used in the form of their alkali metal salts (e.g., sodium salts).

[0189] The total amount of one or more fluorescent agents used in the composition is generally from 0.0001 to 0.5% by weight, preferably from 0.005 to 2% by weight, more preferably from 0.01 to 0.1% by weight. Preferred classes of fluorescent agents are distyrylbiphenyl compounds, such as Tinopal (trademark) CBS-X, diaminestilbene disulfonic acid compounds, such as Tinopal DMS pure Xtra and Blankophor (trademark) HRH, and pyrazoline compounds, such as Blankophor SN. Preferred fluorescent agents are those having CAS-No 3426-43-5; CAS-No 35632-99-6; CAS-No 24565-13-7; CAS-No 12224-16-7; CAS-No 13863-31-5; CAS-No 4193-55-9; CAS-No 16090-02-1; CAS-No 133-66-4; CAS-No 68444-86-0; and CAS-No 27344-41-8.

[0190] The most preferred fluorescent agents are: sodium 2(4-phenylvinyl-3-sulfophenyl)-2H-naphtho[1,2-d]triazole, disodium 4,4'-bis{[(4-anilino-6-(N-methyl-N-2-hydroxyethyl)amino1,3,5-triazin-2-yl)]amino}stilbene-2-2'disulfonate, disodium 4,4'-bis{[(4-phenylvinyl-6-morpholino-1,3,5-triazin-2-yl)]amino}stilbene-2-2'disulfonate and disodium 4,4'-bis(2-sulfostyryl)biphenyl.

[0191] Shading dyes

[0192] The presence of a hueing dye in the formulation is advantageous.

[0193] Dyes are described in Color Chemistry Synthesis, Properties and Applications of Organic Dyes and Pigments, (H Zollinger, Wiley VCH, Zurich, 2003) and in Industrial Dyes Chemistry, Properties Applications (K Hunger (ed.), Wley-VCH Weinheim 2003).

[0194] Hueing dyes for use in laundry compositions preferably have an absorption maximum in the visible range (400 to 700 nm) of greater than 5000 L mol -1 cm -1 , preferably greater than 10000 L mol -1 cm -1 The extinction coefficient of .

[0195] Preferred hueing dye chromophores are azo, azine, anthraquinone, phthalocyanine and triphenylmethane. Azo, anthraquinone, phthalocyanine and triphenylmethane dyes preferably have a net anionic charge or are uncharged. Azine dyes preferably have a net anionic or cationic charge.

[0196] Most preferred are blue or violet hueing dyes. During the washing or rinsing steps of the laundering process, hueing dyes are deposited onto the fabric, thereby providing a visible hue to the fabric. In this regard, the dye imparts a blue or violet hue to white cloth with a hue angle of 240 to 345, more preferably 260 to 320, and most preferably 270 to 300. The white cloth used in this test was a bleached, non-mercerized woven cotton sheet.

[0197] Toning dyes are disclosed in WO2005 / 003274, WO2006 / 032327(Unilever), WO2006 / 032397(Unilever), WO2006 / 045275(Unilever), WO2006 / 027086 (Unilever), WO2008 / 017570(Unilever), WO2008 / 141880(Unilever), WO2009 / 132870(Unilever), WO2009 / 141173(Unilever) r), WO2010 / 099997 (Unilever), WO2010 / 102861 (Unilever), WO2010 / 148624 (Unilever), WO2008 / 087497 (P&G), WO2011 / 011799 (P&G), WO2012 / 054820 (P&G), WO2013 / 142495 (P&G) and WO2013 / 151970 (P&G), WO2018085311 (P&G) and WO2019075149 (P&G).

[0198] Mixtures of hueing dyes may be used.

[0199] Most preferably the hueing dye chromophore is selected from monoazo, disazo and azine.

[0200] Monoazo dyes preferably contain heterocycles, and most preferably thiophene dyes. Monoazo dyes are preferably alkoxylated and preferably uncharged or anionically charged at pH = 7. Alkoxylated thiophene dyes are discussed in WO2013 / 142495 and WO2008 / 087497. Preferred examples of thiophene dyes are shown below:

[0201]

[0202] The disazo dye is preferably a sulfonated disazo dye. Preferred examples of sulfonated disazo compounds are direct violet 7, direct violet 9, direct violet 11, direct violet 26, direct violet 31, direct violet 35, direct violet 40, direct violet 41, direct violet 51, direct violet 66, direct violet 99 and alkoxylated forms thereof.

[0203] Alkoxylated bis-azo dyes are discussed in WO 2012 / 054058 and WO / 2010 / 151906.

[0204] Examples of alkoxylated disazo dyes are:

[0205]

[0206] Azine dye is preferably selected from sulfonated phenazine dye and cationic phenazine dye. Preferred examples are acid blue 98, acid violet 50, the dye of CAS-No 72749-80-5, acid blue 59 and the phenazine dye selected from following:

[0207]

[0208] in:

[0209] X3 is selected from: -H; -F; -CH3; -C2H5; -OCH3; and -OC2H5;

[0210] X4 is selected from: -H; -CH3; -C2H5; -OCH3; and -OC2H5;

[0211] Y2 is selected from: -OH; -OCH2CH2OH; -CH(OH)CH2OH; -OC(O)CH3; and C(O)OCH3.

[0212] Anthraquinone dyes covalently bound to ethoxylated or propoxylated polyethyleneimines may be used, as described in WO 2011 / 047987 and WO 2012 / 119859.

[0213] The hueing dye is preferably present in the composition in a range of 0.0001 to 0.1 % by weight. Depending on the nature of the hueing dye, there is a preferred range depending on the efficacy of the hueing dye, which efficacy depends on the class and the specific efficacy within any particular class. As mentioned above, the hueing dye is preferably a blue or violet hueing dye.

[0214] spices

[0215] The composition preferably comprises a fragrance. Many suitable examples of fragrances are provided in the CTFA (Cosmetic, Toiletry and Fragrance Association) 1992 International Buyers Guide published by CFTA Publications and in the OPD 1993 Chemicals Buyers Directory 80th Annual Edition published by Schnell Publishing Co.

[0216] Preferably, the fragrance comprises at least one note (compound) selected from the group consisting of α-isomethylionone, benzyl salicylate; citronellol; coumarin; hexyl cinnamaldehyde; linalool; ethyl 2-methylvalerate; octanal; benzyl acetate; 1,6-octadien-3-ol, 3,7-dimethyl-, 3-acetate; 2-(1,1-dimethylethyl)-1-cyclohexanol acetate; δ-dihydrodamascone; β-ionone; verdyl acetate; dodecanal; hexyl cinnamaldehyde; cyclopentadecalactone; phenylacetic acid, 2-phenylethyl ester; amyl salicylate; β-caryophyllene; ethyl undecenoate; geranyl anthranilate; α-irone; β-phenylethyl benzoate; α-santaloleyl alcohol; cedrol; cedryl acetate; formates; cyclohexyl salicylate; γ-dodecalactone; and β-phenylethylphenyl acetate.

[0217] Useful components of flavors include materials of both natural and synthetic origin. These include single compounds and mixtures. Specific examples of such components can be found in the literature, for example, in Fenaroli's Handbook of Flavor Ingredients, 1975, CRC Press; Synthetic Food Adjuncts, 1947, edited by MB Jacobs and Van Nostrand; or S. Arctander's Perfume and Flavor Chemicals, 1969, Montclair, NJ (USA).

[0218] It is common for multiple fragrance components to be present in a formulation. In the compositions of the present invention it is envisaged that four or more, preferably five or more, more preferably six or more or even seven or more different fragrance components will be present.

[0219] In perfume mixtures, preferably 15 to 25% by weight are top notes. Top notes are defined by Poucher (Journal of the Society of Cosmetic Chemists 6(2):80

[1955] ). Preferred top notes are selected from citrus oils, linalool, linalyl acetate, lavender, dihydromyrcenol, rose oxide, and cis-3-hexanol.

[0220] The International Fragrance Association published a list of flavoring ingredients (fragrances) in 2011. (http: / / www.ifrao.g.org / en-us / Ingredients#.U7Z4HPLDWZK)

[0221] The Fragrance Institute provides a database of flavors (aromas) with safety information.

[0222] Perfume top notes may be used to suggest the whiteness and brightness benefits of the present invention.

[0223] Some or all of the fragrance may be encapsulated. Typical fragrance components that are advantageously encapsulated include those with relatively low boiling points, preferably those with boiling points less than 300° C., preferably those in the range of 100-250° C. It is also advantageous to encapsulate fragrance components with low CLog P (i.e., those that will have a greater tendency to partition into water), preferably fragrance components with a CLog P of less than 3.0. These materials with relatively low boiling points and relatively low CLog P are referred to as "delayed release" fragrance ingredients and include one or more of the following: allyl hexanoate, amyl acetate, amyl propionate, anisaldehyde, anisole, benzaldehyde, benzyl acetate, benzyl acetone, benzyl alcohol, benzyl formate, benzyl isovalerate, benzyl propionate, βγ-hexenol, camphor gum, L-carvone, d-carvone, cinnamyl alcohol, cinnamyl formate, cis-jasmone, cis-3-hexenyl acetate, cuminol, cyclamate, cis- c, dimethylbenzyl carbinol, dimethylbenzyl carbinol acetate, ethyl acetate, ethyl acetoacetate, ethyl amyl ketone, ethyl benzoate, ethyl butyrate, ethyl hexyl ketone, ethyl phenyl acetate, eucalyptol, eugenol, fenchyl acetate, flor acetate (tricyclodecenyl acetate), frutene (tricyclodecenyl propionate), geraniol, hexenol, hexenyl acetate, hexyl acetate, hexyl formate, hydratropic alcohol), hydroxycitronellal, indanone, isoamyl alcohol, isomenthone, isopulegyl acetate, isoquinolone, privet aldehyde, linalool, linalool oxide, linalyl formate, menthone, menthyl acetophenone, methyl amyl ketone, methyl anthranilate, methyl benzoate, methyl phenyl acetate, methyl eugenol, methyl heptenone, methyl heptynyl carbonate, methyl heptyl ketone, methyl hexyl ketone, methyl phenyl orthoacetate, methyl salicylate, methyl-n-methyl anthranilate, nerol, octalactone, octanol, p-cresol, p-cresol methyl ether, p-methoxyacetophenone, p-methylacetophenone, phenoxyethanol, phenylacetaldehyde, phenylethyl acetate, phenylethyl alcohol, phenethyl dimethyl carbinol, prenyl acetate, propyl borate, menthol, rose oxide, safrole, 4-terpineol, α-terpineol and / or viridine. It is common for multiple fragrance components to be present in a formulation. In the compositions of the present invention, it is envisaged that four or more, preferably five or more, more preferably six or more or even seven or more different fragrance components from the list of delayed release fragrances given above are present in the fragrance.

[0224] Another group of fragrances to which the present invention can be applied are the so-called "aromatherapy" materials. These include many components also used in perfume making, including components of essential oils such as sage, eucalyptus, geranium, lavender, mace extract, neroli, nutmeg, spearmint, sweet violet leaf, and valerian.

[0225] It is preferred that the laundry treatment compositions do not contain peroxygen bleaches such as sodium percarbonate, sodium perborate and peracids.

[0226] polymer

[0227] The composition may comprise one or more additional polymers. Examples are carboxymethylcellulose, poly(ethylene glycol), poly(vinyl alcohol), polycarboxylates such as polyacrylates, maleic acid / acrylic acid copolymers and lauryl methacrylate / acrylic acid copolymers.

[0228] In the case where the alkyl group is long enough to form a branched or cyclic chain, the alkyl group includes branched, cyclic and linear alkyl chains. The alkyl group is preferably linear or branched, most preferably linear.

[0229] Auxiliary ingredients

[0230] Detergent compositions optionally contain one or more laundry builder ingredients.

[0231] To prevent oxidation of the formulation, an antioxidant may be present in the formulation.

[0232] The term "auxiliary ingredients" includes: fragrances, dispersants, stabilizers, pH control agents, metal ion control agents, colorants, brighteners, dyes, odor control agents, top fragrances, cyclodextrins, fragrances, solvents, soil release polymers, preservatives, antimicrobial agents, chlorine scavengers, shrinkage inhibitors, fabric crispeners, stain removers, antioxidants, corrosion inhibitors, thickeners, drape and shape control agents, smoothing agents, static control agents, wrinkle control agents, sanitizing agents, disinfectants, germ control agents, mold control agents, mildew control agents, anti-disease agents, If present, such adjuvants may be used at a level of from 0.1% to 5% by weight of the composition.

[0233] The present invention will be further described by the following non-limiting examples. Example

[0234] The following surfactant solutions were generated and tested for cleaning against a dyed tallow monitor (CS61 on cotton from Equest).

[0235] High Throughput (HT) Cleaning Solutions

[0236] Soiled fabric discs (stained with dyed tallow) were placed in the wells of a 96-well microtiter plate and their color was measured by imaging and image analysis software, which calculated the pre-wash (Bw) CIEL*a*b* color value for each cloth. The formulations were deposited into each well based on the experimental design.

[0237] The core surfactant concentration (i.e., not including the co-surfactants amine oxide or lauryl hydroxysultaine (LHS)) was always fixed at 0.2 g / L. Where these co-surfactants were added, they were included at 0.02 g / L (i.e., a 10:1 ratio with the other core surfactants). Thus, while there was slightly more (10%) surfactant in the amine oxide and LHS test formulations, the surfactant levels were equivalent between the amine oxide and LHS test formulations.

[0238] Multiple replicates (six) of each formulation were run to reduce the magnitude of error in the process and allow for good statistical differentiation. The plates were then agitated at 20°C for 30 minutes. Upon completion, the wash solution was removed and the stained fabrics were rinsed three times in water within the wells of the MTP. After drying at 55°C for 4 hours, the plates were remeasured to calculate the after-wash (Aw) CIEL*a*b* color values for each piece of fabric.

[0239] ΔE AW-BW It is calculated according to the following equation, where:

[0240] ΔE AW-BW =SQRT((L* Aw -L* Bw ) 2 )+((a* Aw -a* Bw ) 2 )+((b* Aw -b* Bw ) 2 ))

[0241] These are the cleanliness score values represented in the table below.

[0242] All concentrations are expressed as g / L (grams per liter).

[0243] Explanation of the surfactants used

[0244] SAS = secondary alkyl sulfonate (WeylClean SAS60, from Weylchem)

[0245] Glucopon APG = Glucopon 600CSUP (from BASF)

[0246] Neodol 25-7 = C12-C15 nonionic surfactant with a molar average of 7 moles of ethoxylate, from Shell

[0247] LHS = Lauryl Hydroxysultaine (Mackam LHS from Solvay)

[0248] Amine oxide = amine oxide (Empigen OB from Innospec)

[0249] Example 1 - According to the present invention

[0250] The following surfactant solutions were generated and tested for cleaning against a dyed tallow monitor (CS61 on cotton from Equest). All concentrations are expressed as g / L.

[0251] The results below are for HT (High Throughput) measurements where the weight ratio of total anionic surfactant to total nonionic surfactant was 3: 1. The results clearly demonstrate the benefit of LHS as a co-surfactant, which is far superior to the commonly used amine oxide co-surfactants.

[0252] 12FH Results

[0253]

[0254]

[0255] 24FH Results

[0256]

[0257] This experiment supports the finding that the combination of secondary alkyl sulfonate surfactants with a range of nonionic surfactants (where the total amount of anionic surfactant is greater than the amount of nonionic surfactant) and alkyl hydroxysulfobetaine co-surfactants provides superior cleaning compared to the more common amino oxide co-surfactants, and also in the absence of the co-surfactant.

[0258] Example 2-Comparative Example

[0259] The results below are HT measurements where the weight ratio of total anionic surfactant to total nonionic surfactant was 1:3. The results clearly demonstrate that when the nonionic material is the primary surfactant, no benefit is seen from LHS as a co-surfactant. This is seen in all cases except for Glucopon APG, which shows some activity with APG at this ratio. This is likely because APG has a small negative charge due to the partial dissociation of the hydroxyl groups present on the sugar head group, and this anionic character may explain the benefit seen from LHS as a co-surfactant.

[0260] 12FH Results

[0261]

[0262] 24FH Results

[0263]

[0264] Thus, this experiment fully supports the finding that the combination of secondary alkyl sulfonate surfactants with a range of nonionic surfactants (where the total amount of anionic surfactant is greater than the amount of nonionic surfactant) and alkyl hydroxysulfobetaine co-surfactants provides superior cleaning compared to the more common amino oxide co-surfactants, and also in the absence of the co-surfactants.

Claims

1. A detergent composition comprising: a) 1 to 40 weight percent of a secondary alkyl sulfonate surfactant having an average of 15 to 18 carbon atoms in the linear alkane chain; b) 1 to 40% by weight of a nonionic surfactant; and c) 0.01 to 8 wt. % of an alkylhydroxysulfobetaine co-surfactant; wherein the total weight ratio of the total weight of the anionic surfactants to the total weight of the nonionic surfactants ranges from 30:1 to >1:1; and wherein the alkylhydroxysulfobetaine cosurfactant has the formula <h2 style=";text-align:left;direction:ltr">RN<h2 style=";text-align:left;direction:ltr"> + <h2 style=";text-align:left;direction:ltr"> (CH3)2-CH2-CH(OH)-CH2-SO3<h2 style=";text-align:left;direction:ltr"> - <h2 style=";text-align:left;direction:ltr"> M<h2 style=";text-align:left;direction:ltr"> + <h2 style=";text-align:left;direction:ltr"> , Wherein R is an alkyl chain having C10-C18, and M + Yes + or K + ;and The nonionic surfactant is selected from alcohol alkoxylates; alkyl polyglucosides; and alkyl polypentosides.

2. A detergent composition according to claim 1 comprising 2 to 30% by weight of a secondary alkyl sulfonate surfactant having an average of 15 to 18 carbon atoms in the linear alkane chain.

3. A detergent composition according to claim 1 comprising 3 to 15 wt% of a secondary alkyl sulfonate surfactant having an average of 15 to 18 carbon atoms in the linear alkane chain.

4. The detergent composition according to claim 1, comprising 2 to 30% by weight of a nonionic surfactant.

5. The detergent composition according to claim 1, comprising 3 to 15 wt% of a nonionic surfactant.

6. The detergent composition of claim 1 comprising 0.1 to 6 wt% of an alkylhydroxysultaine co-surfactant.

7. The detergent composition of claim 1 comprising 0.25 to 5 wt% of an alkylhydroxysultaine co-surfactant.

8. The detergent composition of claim 1 comprising 0.5 to 5 wt% of an alkylhydroxysultaine co-surfactant.

9. The detergent composition of claim 1, wherein greater than 50% by weight of the alkyl chains of the secondary alkyl sulfonates are C15 to C18 secondary alkyl sulfonates.

10. The detergent composition of claim 1, wherein greater than 60% by weight of the alkyl chains of the secondary alkyl sulfonates are C15 to C18 secondary alkyl sulfonates.

11. The detergent composition of claim 1 , wherein greater than 70% by weight of the alkyl chains of the secondary alkyl sulfonates are C15 to C18 secondary alkyl sulfonates.

12. The detergent composition of claim 1, wherein at least 75% by weight of the alkyl chains of the secondary alkyl sulfonates are C15 to C18 secondary alkyl sulfonates.

13. The detergent composition of claim 1, wherein at least 80% by weight of the alkyl chains of the secondary alkyl sulfonates are C15 to C18 secondary alkyl sulfonates.

14. The detergent composition of claim 1, wherein at least 85% by weight of the alkyl chains of the secondary alkyl sulfonates are C15 to C18 secondary alkyl sulfonates.

15. The detergent composition of claim 1, wherein at least 90% by weight of the alkyl chains of the secondary alkyl sulfonates are C15 to C18 secondary alkyl sulfonates.

16. The detergent composition of claim 1, wherein at least 95% by weight of the alkyl chains of the secondary alkyl sulfonate are C15 to C18 secondary alkyl sulfonates.

17. The detergent composition of claim 1, wherein greater than 50% by weight of the alkyl chains of the secondary alkyl sulfonates are C15 to C17 secondary alkyl sulfonates.

18. The detergent composition of claim 1, wherein greater than 60% by weight of the alkyl chains of the secondary alkyl sulfonates are C15 to C17 secondary alkyl sulfonates.

19. The detergent composition of claim 1, wherein greater than 70% by weight of the alkyl chains of the secondary alkyl sulfonates are C15 to C17 secondary alkyl sulfonates.

20. The detergent composition of claim 1, wherein at least 75% by weight of the alkyl chains of the secondary alkyl sulfonates are C15 to C17 secondary alkyl sulfonates.

21. The detergent composition of claim 1, wherein at least 80% by weight of the alkyl chains of the secondary alkyl sulfonates are C15 to C17 secondary alkyl sulfonates.

22. The detergent composition of claim 1, wherein at least 85% by weight of the alkyl chains of the secondary alkyl sulfonates are C15 to C17 secondary alkyl sulfonates.

23. The detergent composition of claim 1, wherein at least 90% by weight of the alkyl chains of the secondary alkyl sulfonate are C15 to C17 secondary alkyl sulfonates.

24. The detergent composition of claim 1, wherein at least 95% by weight of the alkyl chains of the secondary alkyl sulfonates are C15 to C17 secondary alkyl sulfonates.

25. A detergent composition according to any one of claims 1 to 24, wherein the alkyl chains of the secondary alkyl sulfonate are obtained from renewable sources.

26. A detergent composition according to any one of claims 1 to 24, wherein the alkyl chains of the secondary alkyl sulfonate are derived from triglycerides.

27. A detergent composition according to any one of claims 1 to 24, wherein the total weight ratio of the total weight of anionic surfactants to the total weight of nonionic surfactants is in the range of 25:1 to >1:

1.

28. A detergent composition according to any one of claims 1 to 24, wherein the total weight ratio of the total weight of anionic surfactants to the total weight of nonionic surfactants is in the range of 20:1 to >1:

1.

29. A detergent composition according to any one of claims 1 to 24, wherein the total weight ratio of the total weight of anionic surfactants to the total weight of nonionic surfactants is in the range of 15:1 to >1:

1.

30. A detergent composition according to any one of claims 1 to 24, wherein the total weight ratio of the total weight of anionic surfactants to the total weight of nonionic surfactants is in the range of 10:1 to >1:

1.

31. A detergent composition according to any one of claims 1 to 24, wherein the total weight ratio of the total weight of anionic surfactants to the total weight of nonionic surfactants is in the range of 8:1 to >1:

1.

32. A detergent composition according to any one of claims 1 to 24, wherein the total weight ratio of the total weight of anionic surfactants to the total weight of nonionic surfactants is in the range of 6:1 to >1:

1.

33. A detergent composition according to any one of claims 1 to 24, wherein the total weight ratio of the total weight of anionic surfactants to the total weight of nonionic surfactants is in the range of 5:1 to >1:

1.

34. A detergent composition according to any one of claims 1 to 24, wherein the total weight ratio of the total weight of anionic surfactants to the total weight of nonionic surfactants is in the range of 4:1 to >1:

1.

35. A detergent composition according to any one of claims 1 to 24, wherein the weight ratio of anionic and nonionic surfactants [(a) + (b)] to co-surfactant (c) is in the range of 2:1 to 100:

1.

36. A detergent composition according to any one of claims 1 to 24, wherein the weight ratio of anionic and nonionic surfactants [(a) + (b)] to co-surfactant (c) is in the range of 4:1 to 50:

1.

37. A detergent composition according to any one of claims 1 to 24, wherein the weight ratio of anionic and nonionic surfactants [(a) + (b)] to co-surfactant (c) is in the range of 5:1 to 20:

1.

38. A detergent composition according to any one of claims 1 to 24, wherein greater than 50% by weight of the alkylhydroxysultaine co-surfactant's alkyl chains have a C10-C16 alkyl chain.

39. A detergent composition according to any one of claims 1 to 24, wherein greater than 60% by weight of the alkylhydroxysultaine co-surfactant's alkyl chains have a C10-C16 alkyl chain.

40. A detergent composition according to any one of claims 1 to 24, wherein greater than 70% by weight of the alkylhydroxysultaine co-surfactant's alkyl chains have a C10-C16 alkyl chain.

41. A detergent composition according to any one of claims 1 to 24, wherein the alkyl chains of at least 75% by weight of the alkyl hydroxy sultaine co-surfactant of the alkyl hydroxy sultaine co-surfactant have a C10-C16 alkyl chain.

42. A detergent composition according to any one of claims 1 to 24, wherein the alkyl chains of at least 80% by weight of the alkylhydroxysultaine co-surfactant of the alkylhydroxysultaine co-surfactant have a C10-C16 alkyl chain.

43. The detergent composition of any one of claims 1-24, wherein the nonionic surfactant is an alcohol ethoxylate.

44. A detergent composition according to any one of claims 1 to 24, wherein the nonionic surfactant is selected from alcohol ethoxylates having a molar average of 5 to 9 ethoxylates and / or alcohol ethoxylates having a molar average of 7 to 14 ethoxylates.

45. A detergent composition according to any one of claims 1 to 24, wherein the composition further comprises from 1 to 40 wt% of one or more anionic surfactants other than the secondary alkyl sulfonate surfactant.

46. A detergent composition according to any one of claims 1 to 24, wherein the composition further comprises from 2 to 30% by weight of one or more anionic surfactants other than the secondary alkyl sulfonate surfactant.

47. A detergent composition according to any one of claims 1 to 24, wherein the composition further comprises from 2 to 25 wt. % of one or more anionic surfactants other than the secondary alkyl sulfonate surfactant.

48. A detergent composition according to any one of claims 1 to 24, wherein the composition further comprises from 2 to 20% by weight of one or more anionic surfactants other than the secondary alkyl sulfonate surfactant.

49. The detergent composition of claim 45, wherein the one or more anionic surfactants other than the secondary alkyl sulfonate surfactant are selected from the group consisting of primary alkyl sulfates, linear alkylbenzene sulfonates, alkyl ether sulfates, internal olefin sulfonates, alpha-olefin sulfonates, soaps, anionically modified APGs, furan-based anionic surfactants, anionic biosurfactants, citrate esters of mono- and diglycerols, tartaric acid esters of mono- and diglycerols, and diacetyl tartaric acid esters of mono- and diglycerols.

50. The detergent composition of claim 45, wherein the one or more anionic surfactants other than the secondary alkyl sulfonate surfactants are selected from the group consisting of primary alkyl sulfates, linear alkylbenzene sulfonates, alkyl ether sulfates, furan-based anionic surfactants and rhamnolipids.

51. The detergent composition of claim 49, wherein the anionic biosurfactant is a rhamnolipid.

52. A detergent composition according to any one of claims 1 to 24, wherein the composition comprises from 0.5 to 15 wt% of a cleaning booster selected from the group consisting of anti-redeposition polymers, soil release polymers, alkoxylated polycarboxylates and mixtures thereof.

53. A detergent composition according to claim 52, wherein the composition comprises from 0.75 to 15 wt% of the cleaning enhancer.

54. The detergent composition of claim 52, wherein the composition comprises from 1 to 12 wt% of the cleaning enhancer.

55. The detergent composition of claim 52, wherein the composition comprises from 1.5 to 10% by weight of the cleaning enhancer.

56. A detergent composition according to claim 52, wherein the anti-redeposition polymer is an alkoxylated polyamine; and / or the soil release polymer is a polyester soil release polymer.

57. The detergent composition of claim 52 wherein the soil release polymer is a polyester soil release polymer.

58. A detergent composition according to any one of claims 1 to 24, wherein the composition is a laundry detergent composition.

59. A detergent composition according to any one of claims 1 to 24, wherein the composition is a laundry liquid detergent composition.

60. A detergent composition according to any one of claims 1 to 24, wherein the composition is a liquid unit dose detergent composition.

61. A detergent composition according to any one of claims 1 to 24, wherein the composition comprises one or more enzymes selected from the group consisting of lipase, protease, alpha-amylase, cellulase, peroxidase, pectate lyase, mannanase, or mixtures thereof, wherein the level of each enzyme in the composition is from 0.0001% to 0.1% by weight.

62. A detergent composition according to any one of claims 1 to 24, wherein the composition comprises one or more enzymes selected from the group consisting of lipase, protease, alpha-amylase, cellulase and mixtures thereof, wherein the level of each enzyme in the composition is from 0.0001 wt% to 0.1 wt%.

63. A detergent composition according to any one of claims 1 to 24, wherein the composition comprises an oxidase, wherein the level of oxidase in the composition is from 0.0001 wt% to 0.1 wt%.

64. A detergent composition according to any one of claims 1 to 24 wherein the weight ratio of secondary alkyl sulfonate to alkyl hydroxysulfobetaine co-surfactant is from 10:1 to 1.5:

1.

65. A detergent composition according to any one of claims 1-24, wherein the weight ratio of secondary alkyl sulfonate to alkyl hydroxysulfobetaine co-surfactant is from 9:1 to 2:

1.

66. A detergent composition according to any one of claims 1-24, wherein the weight ratio of secondary alkyl sulfonate to alkyl hydroxysulfobetaine co-surfactant is from 8:1 to 5:

2.

67. A method of treating a fabric, said method comprising the steps of: Treating fabrics with 0.5 to 20 g / L of an aqueous solution of a detergent composition according to any one of claims 1 to 66, and optionally drying the fabrics.

68. The method of claim 67, wherein the method is a home method.

69. The method of claim 67, wherein the method is a home method performed at home using a home appliance.

70. The method according to any one of claims 67 to 69, wherein the method is carried out at a wash water temperature of 280 to 335K.

71. The method of any one of claims 67-69, wherein the detergent composition is a laundry liquid detergent composition.

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