Detergent compositions comprising isethionate surfactants

Abstract

The present invention relates to a laundry cleaning composition; in particular a solid detergent composition having a desirable foam profile during the wash process. An object of the present invention is to provide a detergent composition which provides a good foam profile. Another object of the present invention is to provide a detergent composition which provides a good cleaning performance. The present inventors have found that when a non-isethionate anionic surfactant is combined with an alkylisethionate anionic surfactant and a foam suppressor in a carbonate built detergent composition, the composition provides an excellent foam profile while maintaining a good cleaning performance.

Description

Technical Field

[0001] Field of the Invention The present invention relates to fabric cleaning compositions; in particular solid laundry detergent compositions having desirable suds characteristics during the wash process. Background Art

[0002] Synthetic detergents are widely used for washing fabrics due to the efficiency of these detergent compositions in cleaning and stain removal. In addition to synthetic detergents, laundry detergent compositions are formulated to contain various additives to provide improved cleaning and sensory benefits. One of the sensory benefits includes maintaining an appropriate level of foam during the washing process.

[0003] The foaming or foaming of detergents is an extremely important factor to be considered when formulating detergent compositions. Foam is an important consumer cue and is the main reason why consumers perceive compositions to have cleaning effects. Unfortunately, although foam is easy to produce, it is also necessary to remove it from the substrate after cleaning. Large amounts of foam in the wash cycle usually result in the foam being carried into the rinse solution, and additional time, energy and water are required to thoroughly rinse the washed articles. Therefore, for consumer acceptance, it is advantageous to produce high foam volumes in the early stages of the wash cycle. Thereafter, for complete cleaning and minimal waste of cleaning water, the rapid collapse of the foam to a smaller volume at the end of the wash cycle is another preferred aspect of the foaming characteristics of the detergent composition.

[0004] Several attempts have been made in the past to save water after washing textile articles with high foaming compositions. Laundry preparations, such as rinse aids, have been used to help reduce the foam carried over into the rinse water by the washed fabrics. Rinse aids reduce the amount of water used during rinsing. However, the use of rinse aids adds an extra step and requires the consumer to use an additional product in the washing process.

[0005] In today's fast-paced world, consumers seek a single composition that provides multiple benefits. Therefore, there is a need for a detergent composition that provides good foam properties, good cleaning benefits and reduces water consumption. This need is particularly felt by consumers living in areas with severe water shortages.

[0006] In recent years, the use of synthetic detergents is related to the adverse effects on the environment, because these foaming ingredients are derived from non-renewable resources, and can pollute water bodies when synthetic detergents are finally discharged into rivers and lakes. Therefore, a detergent composition with these ingredients of lower content is needed. However, a difficulty in meeting this need is that the reduction of surfactant in the detergent composition significantly deteriorates the foaming properties of the detergent composition, and these compositions can provide low foam generation, or foam may not be well retained during the washing cycle. This detergent composition with poor foaming properties becomes less acceptable for consumers who attach great importance to the foaming properties of detergent compositions.

[0007] Therefore, there remains a need for a laundry cleaning composition containing an environmentally friendly composition having lower levels of synthetic detergents while providing desirable foaming characteristics, i.e., rapid generation of large amounts of well-retained foam upon dissolution of the detergent composition in the wash solution and which collapses rapidly at the end of the wash cycle to facilitate easier removal of the foam during the rinse stage.

[0008] Therefore, there is a need for a cleaning composition that reduces and preferably eliminates suds in the rinse without adversely affecting suds formation in the initial wash step.

[0009] Some solutions to the problem of foaming during the rinse phase have been provided by incorporating rinse-triggered defoamers that act on the foam and suppress it during the rinse phase. However, such rinse-triggered defoamers increase the amount of chemicals incorporated into the composition, and such compositions must be carefully formulated to avoid release of the defoamer during the cleaning phase. Furthermore, such rinse-triggered defoamers are generally expensive and do not provide other performance benefits to the composition other than foam suppression. Therefore, it is desirable to minimize their presence.

[0010] In the past, compositions have been prepared that deliver reduced foaming.

[0011] Such a composition is disclosed in US 2017 / 0292088 A1 (The Honest Company, Inc), which provides a laundry detergent composition that prevents excessive foaming in a washing machine during agitation. The detergent composition includes an alkyl isethionate as a surfactant and a defoamer.

[0012] Despite past attempts to provide detergent compositions for washing fabrics which provide desirable suds characteristics during the various washing steps, there remains a need for a solid cleaning composition which provides good suds characteristics whilst maintaining good cleaning performance.

[0013] It is therefore an object of the present invention to provide a solid laundry detergent composition which provides good suds characteristics.

[0014] Another object of the present invention is to provide a solid laundry detergent composition which provides good cleaning performance.

[0015] It is yet another object of the present invention to provide an environmentally friendly solid laundry detergent composition.

[0016] It is a further object of the present invention to provide a solid laundry detergent composition which reduces the amount of water required for rinsing. Summary of the invention

[0017] The present inventors have discovered that when anionic, non-soap, non-isethionate anionic surfactants are combined at specific levels with isethionate surfactants and suds suppressors in carbonate built solid laundry detergent compositions, the compositions provide excellent suds characteristics whilst maintaining good cleaning performance.

[0018] According to a first aspect of the present invention, there is disclosed a solid laundry detergent composition comprising:

[0019] i) isethionate surfactants;

[0020] ii) foam inhibitors;

[0021] iii) an anionic non-soap, non-isethionate surfactant selected from alkyl sulfate surfactants, alkyl sulfonate surfactants, alkyl ether sulfate surfactants, or combinations thereof; and

[0022] iv) sodium carbonate builder,

[0023] The ratio of the isethionate surfactant to the anionic non-isethionate surfactant is in a ratio of 1:1 to 1:200.

[0024] According to a second aspect of the present invention, there is disclosed a method for treating a fabric surface with a solid laundry detergent composition according to any one of the preceding claims, the method comprising the steps of:

[0025] i) preparing a wash liquor having an effective amount of foam by contacting a detergent composition according to the first aspect with a liquid, preferably water;

[0026] ii) soaking the fabric surface in a wash liquor for a predetermined period of time; and

[0027] iii) optionally rinsing the fabric surface.

[0028] According to a third aspect of the present invention, there is disclosed the use of an isethionate surfactant, a suds suppressor, an anionic non-soap, non-isethionate surfactant selected from an alkyl sulfate surfactant, an alkyl sulfonate surfactant, an alkyl ether sulfate surfactant or a combination thereof, and a sodium carbonate builder to provide fast suds generation in the wash liquor in the main wash stage and fast suds collapse in the rinse stage, wherein the ratio of isethionate surfactant to anionic non-isethionate surfactant in the solid laundry detergent composition is in a ratio of 1:1 to 1:200.

[0029] As used herein, the terms "fabric," "textile," and "cloth" are used non-specifically and may refer to any type of flexible material comprised of a network of natural or man-made fibers, including natural, man-made, and synthetic fibers, such as, but not limited to, cotton, linen, wool, polyester, nylon, silk, acrylic, etc., including blends of various fabrics or fibers.

[0030] As used herein, "foaming properties" refers to the properties of the foam characteristics in the wash and rinse solutions formed with the detergent composition. The foaming properties of the detergent composition include, but are not limited to, the speed at which foam is generated when the detergent composition is dissolved, the volume and retention of foam during the wash cycle, and the ease with which the foam is rinsed off during the rinse cycle. DETAILED DESCRIPTION

[0031] A solid laundry detergent composition according to the first aspect of the present invention comprises an isethionate surfactant, a suds suppressor, an anionic non-soap, non-isethionate detersive surfactant and a sodium carbonate builder.

[0032] Isethionate surfactants

[0033] According to a first aspect of the present invention, a composition is disclosed comprising an isethionate surfactant.

[0034] Isethionate surfactants include compounds of formula (I):

[0035]

[0036] Where R 1 Represents C 4-36 Substituted or unsubstituted hydrocarbon group; R 2 , R 3 , R 4 and R 5 Each independently represents a hydrogen atom or a C 1-4 alkyl, and M + Represents a cation.

[0037] Preferably R 1is selected from substituted or unsubstituted alkyl, alkenyl, aryl or alkylaryl. More preferably, R 1 R is selected from substituted or unsubstituted alkyl or alkenyl. 1 It can be an alkyl or alkenyl group. 1 is an alkyl group. Most preferably, R 1 is unsubstituted alkyl or alkenyl, especially unsubstituted alkyl.

[0038] Preferably R 1 Represents C 5-30 Alkyl, preferably C 7-24 Alkyl, more preferably C 7-21 Alkyl, most preferably C 8-18 Most preferably, the isethionate surfactant is C 8-18 Isethionate surfactant.

[0039] In some embodiments, R 2 Represents C 1-4 Alkyl, suitably C 1-4 Alkyl, wherein propyl or butyl (when present) is straight chain. Suitably R 2 R may represent n-propyl, ethyl or preferably methyl. However, in a preferred embodiment, R 2 It's hydrogen.

[0040] Preferably R 3 Represents a hydrogen atom.

[0041] In some embodiments, R 4 and R 5 represents a hydrogen atom and the other represents a hydrogen atom or C 1-4 Suitable R 4 and R 5 One of them represents a hydrogen atom or C 1-4 Alkyl, wherein propyl or butyl is a straight chain. Preferably R 4 and R 5 One of R represents n-propyl, ethyl or methyl, or most preferably a hydrogen atom. Most preferably, R 4 and R 5 Both represent hydrogen atoms.

[0042] In a particularly preferred embodiment, R 2 , R 3 , R 4 and R 5 Each of which is hydrogen, and the isethionate compound is of the formula R 1 CO2CH2CH2SO3M. The isethionate surfactant is preferably a linear or branched C8 to C 18 Isethionate surfactant.

[0043] Preferably M + represents an optionally substituted ammonium cation, or most preferably a metal cation. Suitable ammonium cations include NH4 + and ammonium cations of triethanolamine or cations of organic amine bases such as triisopropanolamine, diethanolamine and monoethanolamine. Suitable metal cations include alkali metal cations such as sodium, lithium and potassium cations, and alkaline earth metal cations such as calcium and magnesium cations. Preferably M + represents a potassium cation or, in particular, a sodium cation.

[0044] In some embodiments, the isethionate surfactants of the present invention may comprise a mixture of fatty acids to form a mixture of compounds of formula (I), wherein R 1 Can be different. 1 Preferably, the residue is a fatty acid. The fatty acids obtained from natural oils generally include a mixture of fatty acids. For example, the fatty acids obtained from coconut oil contain C 12 Lauric acid, C 14 Myristic acid, C 16 Palmitic acid, C8 caprylic acid, and C 18 A mixture of stearic and oleic fatty acids. 1 The residues of one or more naturally occurring fatty acids and / or one or more synthetic fatty acids may be included. 1 It is essentially composed of the residue of a single fatty acid. 1 Examples of carboxylic acids include caproic acid, caprylic acid, capric acid, lauric acid, myristic acid, palmitic acid, palmitoleic acid, stearic acid, oleic acid, linoleic acid, arachidic acid, gadoleic acid, arachidonic acid, eicosapentaenoic acid, behenic acid, erucic acid, docosahexaenoic acid, lignoceric acid, naturally occurring fatty acids such as those obtained from coconut oil, tallow, palm kernel oil, milk fat, palm oil, olive oil, corn oil, linseed oil, peanut oil, fish oil, and rapeseed oil; synthetic fatty acids made into chains of a single length or a selected chain length distribution; and mixtures thereof. Most preferably R 1 Contains residues of lauric acid, which is a saturated fatty acid having twelve carbon atoms, or residues of mixed fatty acids derived from coconut oil.

[0045] Examples of isethionate surfactants include, but are not limited to, sodium lauroyl methyl isethionate, ammonium cocoyl isethionate, sodium cocoyl isethionate, sodium hydrogenated cocoyl methyl isethionate, sodium lauroyl isethionate, sodium myristoyl isethionate, sodium oleoyl isethionate, sodium oleoyl methyl isethionate, sodium palmitoleyl isethionate, sodium stearoyl methyl isethionate, sodium isethionate, dibromopropaneamidine diisethionate, hexamidine diisethionate, sodium methyl isethionate, and combinations thereof.

[0046] Most preferably, the compositions of the present invention comprise sodium lauroyl isethionate and / or sodium cocoyl isethionate. Sodium cocoyl isethionate is particularly preferred. In some embodiments, the isethionate surfactant may comprise a mixture of more than one compound of formula (I). The isethionate surfactant may further comprise one or more of sodium lauroyl methyl isethionate, sodium cocoyl methyl isethionate and sodium oleoyl methyl isethionate.

[0047] Suitable examples of commercially available isethionate surfactants include sodium lauroyl methyl isethionate available from Innospec, Inc. under the tradename ISELUX LQ-CLR and sodium cocoyl isethionate available from Innospec, Inc. under the tradenames Pureact SNDT-LO, Pureact I-78 / 80, Pureact I-85EC, Pureact I-85EFlakes and Pureact I-85C.

[0048] Preferably, the solid detergent composition according to the present invention comprises 0.05 to 5 wt% of isethionate surfactant, more preferably 0.2 to 4 wt% of isethionate surfactant. Preferably, the solid detergent composition comprises at least 0.08 wt%, preferably at least 0.1 wt%, also preferably at least 0.15 wt% and most preferably at least 0.2 wt%, but usually not more than 4 wt%, also preferably not more than 3 wt%, still further preferably not more than 2 wt% and most preferably not more than 1 wt%.

[0049] Foam Inhibitor

[0050] According to a first aspect of the present invention, a composition is disclosed comprising a foam suppressor.

[0051] The term foam inhibitor as used herein is understood to include the terms antifoam and defoamer. Similarly, the term "foam suppressor" is understood to include both antifoam and defoam. Antifoam is the total or partial prevention of foam. Defoaming is the reduction or elimination of already existing foam. The term foam inhibitor also means an agent that adjusts the foam to a desired degree.

[0052] The foam inhibitor may be selected from silicone compounds, aminosilicone compounds, glycerol derivatives, diester compounds, fatty acids, soaps, polyols or combinations thereof. More preferably, the foam inhibitor is selected from silicone compounds, aminosilicone compounds, glycerol derivatives, diester compounds or mixtures thereof.

[0053] Suitable foam suppressors for use herein may comprise essentially any known antifoam compound, including, for example, silicone antifoam compounds and 2-alkyl alcanol antifoam compounds. Foam suppressors herein refer to any compound or mixture of compounds which acts, for example, to suppress the foaming or suds generated by a solution of a detergent composition, especially under agitation of the solution.

[0054] Particularly preferred foam suppressors for use herein are silicone foam suppressors defined herein as any antifoam compound comprising a silicone component. Such silicone antifoam compounds also typically contain a silica component. The term "silicone" as used herein, and generally throughout the industry, includes various relatively high molecular weight polymers containing siloxane units and various types of hydrocarbon groups.

[0055] The foam suppressor may be a polysiloxane having the following structure:

[0056]

[0057] wherein R and R′ are the same or different alkyl or aryl groups having 1 to 6 carbon atoms; and x is an integer of at least 20.

[0058] The preferred polysiloxane is polydimethylsiloxane, wherein both R and R' are methyl. The polysiloxane generally has a molecular weight of 500 to 200,000 and a carbonyl group of 50 to 2 x 10 6 mm 2 sec- 1 Preferably, at 25°C, the kinematic viscosity of the polysiloxane is 5×10 2 Up to 5×10 4 mm 2 sec- 1 , the most preferred is 3×10 3 Up to 3×10 4 mm 2 sec- 1 The polysiloxane is typically terminated with trimethylsilyl groups, but other end-capping groups are also suitable. An example of a suitable commercially available polysiloxane is polydimethylsiloxane, "Silicone 200 Fluid", available from Dow Corning, with a viscosity of 50 to 5 x 10 4 mm 2 sec- 1Other examples of silicone oils include Silicone Oil 47v 100, 47v 5000, and 47v 12500 available from Rhone Poulenc; Silcolapse 430 and Silicone EP 6508 available from ICI; Rhodosil 454 available from Rhone Poulenc; and Silkonol AK 100 available from Wacker.

[0059] The foam inhibitor may preferably be an amino-functional organopolysiloxane. Preferably, a modified aminosilicone organopolysiloxane of the general formula (II)

[0060] XR2Si(OSiAR) n (OSiR2) m OSiR2X (II)

[0061] Where: A is the formula -R 1 -[NR 2 -R 3 -] x NR 2 2 or an amine group or a protonated amine group form or an acylated form of amine group A, preferably selected from -(CH2)3NH2 and -(CH2)3NH(CH2)2NH2 and mixtures thereof,

[0062] X is a monovalent hydrocarbon group having 1 to 18 carbon atoms or a 4 -(OR 5 ) y -OR 6 The polyoxyalkylene group G,

[0063] R 1 C1 to C 10 Alkylene, preferably a group of the formula -CH2CH2CH2-,

[0064] R 2 is hydrogen or C1 to C4 alkyl, preferably hydrogen,

[0065] R 3 C1 to C 10 Alkylene, preferably a group of the formula -CH2CH2-,

[0066] R 4 C1 to C 10 Alkylene, preferably a group of the formula -CH2CH2CH2-,

[0067] R 5 is a C1 to C4 alkylene group, preferably a group of the formula -CH2CH2- or -CH2CH2(CH3)-, or a mixture thereof;

[0068] R6 is hydrogen or C1 to C4 alkyl, preferably hydrogen or methyl, more preferably hydrogen,

[0069] n is an integer from 1 to 6, preferably from 1 to 3, m is an integer from 1 to 200, preferably from 1 to 80, x is 0 or 1 and y is an integer from 5 to 20, preferably from 5 to 12, provided that on average 30 mol % to 60 mol %, preferably 30 mol % to 50 mol %, of the residues X are polyoxyalkylene groups G.

[0070] Another preferred amino-functional organopolysiloxane useful in the present invention is one having at least one siloxane unit of the general formula:

[0071]

[0072] and at least one siloxane unit of the following general formula:

[0073]

[0074] Amino-functional organopolysiloxane,

[0075] Where: R 1 are the same or different and are hydrogen atoms, monovalent, optionally fluorine-, chlorine- or bromine-substituted C1 to C 18 Hydrocarbon or C1 to C 12 Alkoxy or hydroxy, preferably C1 to C 18 a hydrocarbon group or a C1 to C3 alkoxy group or a hydroxyl group,

[0076] Where Q is the general formula -R 2 -[NR 3 -(CH2) m -] x NR 4 R 5 An amine group or a partially or completely protonated form thereof on the nitrogen atom, -NH2CH2CH2NH(CH2)3 being a preferred example,

[0077] Where R 2 It is a two-price C1 to C 18 A hydrocarbon group, preferably a divalent C2 to C4 hydrocarbon group, R 3 is a hydrogen atom or a C1 to C 10 Alkyl, R 4 is a hydrogen atom or a C1 to C 10 Alkyl, R 5 is a hydrogen atom or a C1 to C 10Alkyl, a is 0, 1 or 2, preferably 0 or 1, b is 1, 2 or 3, preferably 1, c is 0, 1, 2 or 3, preferably 2 or 3, m is 2, 3 or 4, preferably 2 or 3, and x is 0, 1 or 2, preferably 0 or 1, and the sum of a+b is less than or equal to 3. The hydrocarbon radicals mentioned may be saturated or unsaturated, linear, branched or cyclic groups.

[0078] Particularly preferred foam inhibitors are amino-functional organopolysiloxanes of the following general formula:

[0079] Q k R 1 3-k SiO(R2SiO) m (QR 1 SiO) n S i l 3-k Q k (IV)

[0080] R is the same or different and is monovalent C1 to C 18 Hydrocarbon, R 1 and Q have the same meanings as provided in the structure of formula III (a, b), k is 0 or 1, m is 0 or an integer from 1 to 1000, and n is 0 or an integer from 1 to 50, provided that the organopolysiloxane contains at least one Q group per molecule. Suitable examples of formula (IV) are amino-functional polydimethylsiloxanes terminated by trimethylsiloxane units or amino-functional polydimethylsiloxanes terminated by hydroxydimethylsiloxane units and C1 to C3 alkoxydimethylsiloxane units.

[0081] Preferably, the silicone compound comprises an amino-functional organopolysiloxane and a carrier material selected from the group consisting of sodium carbonate, sodium sulfate, aluminum silicate, potassium carbonate, potassium sulfate, sodium bicarbonate, potassium bicarbonate and zeolite, and mixtures thereof.

[0082] Yet another preferred modified aminosilicone organopolysiloxane useful in the present invention is one having formula (V)

[0083] Y j R 1 3-j SiO(RR 2 SiO) x (YR 1 SiO) n (Me2SiO) V S i 1 3-k Y k (V)

[0084] in:

[0085] Y is the general formula -R3 -[NR 4 -(CH2) m -] x NR 5 R 6 or a protonated or acylated amine form of the amine group Y,

[0086] R 1 are the same or different and are monovalent C1 to C6 alkyl or C1 to C6 alkoxy or hydroxyl, R is a monovalent C1 to C6 alkyl, R 2 is a monovalent C2 to C6 alkyl group, R 3 C1 to C 10 Alkylene; R 4 is hydrogen or C1 to C4 alkyl, R 5 and R 6 independently represents hydrogen or a C1 to C4 alkyl group. j is an integer from 0 to 3, k is an integer from 0 to 3, z is an integer from 1 to 500, n is an integer from 1 to 70, m is an integer from 1 to 10, v is an integer from 0 to 15, and x is an integer from 0 to 1.

[0087] The silicone compound preferably comprises the above-mentioned aminosilicone and a water-soluble carrier. Preferably, the water-soluble carrier has a water solubility of 50 to 500 g / l at 25° C. More preferably, the carrier is selected from sodium carbonate, sodium sulfate, potassium carbonate, potassium sulfate, sodium bicarbonate, potassium bicarbonate, water-soluble starch or a mixture thereof.

[0088] The foam inhibitor may preferably be a diester compound. The foam inhibitor disclosed in the present invention is preferably a cyclohexane polycarboxylic acid derivative of formula (VI),

[0089]

[0090] in

[0091] R 1 They may be the same or different. They are selected from linear or branched C1 to C 10 alkyl or C3 to C8 cycloalkyl; m is 0, 1, 2 or 3; n is 2, 3 or 4, and R is H or a linear or branched C1 to C 30 Alkyl, wherein at least one group R is C1 to C 30 alkyl.

[0092] Preferably R 1 is an alkyl group selected from methyl, ethyl, n-propyl, isopropyl, n-butyl, isobutyl, sec-butyl, tert-butyl, n-pentyl, n-hexyl, n-octyl and 2-ethylhexyl. Preferably, R is an alkyl group, which includes 1Those mentioned below and n-nonyl, isononyl, n-decyl, isodecyl, n-undecyl, isoundecyl, n-dodecyl, isododecyl, n-tridecyl, isotridecyl, stearyl, n-eicosyl, wherein at least one radical R is n-nonyl, isononyl, n-decyl, isodecyl, n-undecyl, isoundecyl, n-dodecyl, isododecyl, n-tridecyl, isotridecyl, stearyl, n-eicosyl. Preferably R is isononyl.

[0093] Cyclohexane polycarboxylic acid derivatives can be selected from monoesters, diesters, triesters, tetraesters and anhydrides of cyclohexane polycarboxylic acids. Preferably, all carboxylic acid groups are esterified. Preferably, cyclohexane polycarboxylic acid derivatives are selected from monoalkyl esters and dialkyl esters of the ring hydrogenation of phthalic acid, isophthalic acid and terephthalic acid, monoalkyl esters, dialkyl esters and trialkyl esters of the ring hydrogenation of trimellitic acid, trimesic acid and hemetic acid, or monoalkyl esters, dialkyl esters, trialkyl esters and tetraalkyl esters of pyromellitic acid, wherein alkyl can be straight or branched, and have 1 to 30 in each case, preferably 2 to 10, particularly preferably 3 to 18 carbon atoms, and two or more mixtures thereof.

[0094] Preferably, the cyclohexane polycarboxylic acid derivative is an alkyl ester of cyclohexane-1,4-dicarboxylic acid, an alkyl ester of cyclohexane-1,2-dicarboxylic acid, a cyclohexane-1,2-dicarboxylic acid and a C1 to C 13 Mixed esters of alcohols, cyclohexane-1,3-dicarboxylic acid and C1 to C 13 Mixed esters of alcohols, cyclohexane-1,4-dicarboxylic acid and C1 to C 13 Mixed esters of alcohols, alkyl esters of cyclohexane-1,3-dicarboxylic acid.

[0095] More preferably, the cyclohexane polycarboxylic acid derivative is an alkyl ester of cyclohexane-1,2-dicarboxylic acid, as shown in the following formula, wherein R 3 and R 4 Independently selected from branched and unbranched C7 to C 12 Preferably, C7 to C 12 The alkyl group is selected from n-heptyl, 1-methylhexyl, 2-methylhexyl, 1-ethylpentyl, 2-ethylpentyl, 1-propylbutyl, 1-ethyl-2-methylpropyl, n-octyl, isooctyl, 2-ethylhexyl, n-nonyl, isononyl, 2-propylhexyl, n-decyl, isodecyl, 2-propylheptyl, n-undecyl, isoundecyl, n-dodecyl, isododecyl, etc. C7 to C8 are particularly preferred. 12 Alkyl represents n-octyl, n-nonyl, isononyl, 2-ethylhexyl, isodecyl, 2-propylheptyl, n-undecyl or isoundecyl. 3 and R 4 Both represent 2-ethylhexyl, isononyl or 2-propylheptyl.

[0096]

[0097] The alkyl ester of cyclohexane-1,2-dicarboxylic acid is preferably selected from di(isobutyl) ester of cyclohexane-1,2-dicarboxylic acid, di(2-ethylhexyl) ester of cyclohexane-1,2-dicarboxylic acid, di(isononyl) ester of cyclohexane-1,2-dicarboxylic acid. The preferred ester group is a straight-chain or branched alkyl group having 6 to 13 carbon atoms. Most preferably, it is di(isononyl) ester of cyclohexane-1,2-dicarboxylic acid. Cyclohexane-1,2-dicarboxylic acid diisononyl ester may be referred to as DINCH is commercially available from BASF AG. The cyclohexanepolycarboxylic acid derivatives are preferably prepared according to the process disclosed in WO 99 / 32427.

[0098] The foam suppressor may preferably be a glycerol derivative. The glycerol derivative has the general formula (VII) as described below.

[0099] R 1 OCH2CH(OH)CH2OR 2 (VII)

[0100] Where R 1 Is H or C 12 To C 18 Saturated or unsaturated alkyl ester and R 2 C 12 To C 18 Saturated or unsaturated alkyl esters.

[0101] The glycerol derivative is preferably glycerol monooleate, glycerol dioleate, glycerol monostearate, glycerol distearate and mixtures thereof, preferably the glycerol derivative is glycerol monostearate, glycerol monooleate or mixtures thereof. Most preferably, the glycerol derivative is glycerol monooleate.

[0102] In a preferred embodiment, the foam suppressor is a glycerol derivative used in combination with methylcellulose. Preferably, glycerol monooleate is used in combination with methylcellulose. The ratio of glycerol derivative to methylcellulose is at least 0.6, preferably at least 0.75, more preferably 1. The ratio of glycerol derivative to methylcellulose is at most 1, preferably at most 2, more preferably at most 5, even more preferably at most 7.

[0103] In addition to the above-mentioned foam inhibitors, further foam inhibitors such as finely divided particulate silica can also be used in the compositions of the invention. Any type of silica can be used to prepare the hydrophobic silica. Preferred examples are precipitated silica and pyrogenic silica, which can be converted into a hydrophobic form, for example by treatment with chloroalkylsilanes, in particular dimethyldichlorosilane, or by treatment with alcohols, in particular octanol. Other suitable agents can be used to prepare the hydrophobic silica. The hydrophobic silica should preferably have a molecular weight of >50 m / s. 2 g -1 and a particle size of <10 μm, preferably <3 μm.

[0104] Examples of commercially available hydrophobic silicas include Sipernat (trademark) D10 and D17 available from Degussa, Wacker HDK P 100 / M available from Wacker Chemicals, and Cabosil (trademark) N 70TS available from Cabot Corp.

[0105] Other examples of suitable suds suppressors include monocarboxylic fatty acids and soluble salts thereof, fatty acid esters (eg fatty acid triglycerides) and fatty acid esters of monovalent alcohols.

[0106] Another preferred foam inhibitor comprises a combination of a silicone antifoam compound and an organic carrier material. The organic carrier material may be a fatty acid, an alcohol or a mixture thereof. The fatty acid may preferably have a carbon chain containing 12 to 20 carbon atoms and a melting point in the range of 45°C to 85°C. The organic carrier material may preferably be an alcohol having a carbon chain containing 12 to 20 carbon atoms, with a melting point of 45°C to 80°C. The organic carrier may comprise a monoester of glycerol and a fatty acid having a carbon chain containing 12 to 20 carbon atoms and a melting point in the range of 50°C to 85°C.

[0107] Examples of organic materials according to the invention are water-insoluble fatty acids, fatty alcohols and mixtures thereof, or monoesters of glycerol and certain fatty acids. Examples include monoesters of stearic acid, palmitic acid, myristic acid, arachidic acid, stearyl alcohol, palmityl alcohol, lauryl alcohol, glycerol and aliphatic fatty acids having a carbon chain containing 12 to 20 carbon atoms, glyceryl monolaurate, glyceryl monomyristate, glyceryl monopalmitate and glyceryl monostearate.

[0108] The foam suppressor may preferably be a soap foam suppressor. Preferably, the soap has an iodine value of less than 2, more preferably an iodine value of less than 1, further preferably less than 0.5, most preferably less than 0.3. The fatty acid soap preferably has a saturation of greater than 95%, more preferably 100%.

[0109] Soap may be provided as a foam suppressor in the present invention at a level of from 0.01 wt% to 15 wt%, preferably from 0.02 wt% to 10 wt%, more preferably from 0.05 wt% to 5 wt%, most preferably from 0.5 wt% to 5 wt% of the composition.

[0110] Preferably, the solid detergent composition according to the present invention comprises 0.05 wt % to 2.0 wt % of foam inhibitor. Preferably, the solid detergent composition comprises at least 0.05 wt %, preferably at least 0.08 wt %, also preferably at least 0.2 wt % and most preferably at least 0.4 wt %, but usually not more than 1.5 wt %, also preferably not more than 1.3 wt %, still further preferably not more than 1 wt % and most preferably not more than 0.8 wt %.

[0111] Anionic surfactants

[0112] According to a first aspect of the present invention, a composition is disclosed comprising an anionic non-soap, non-isethionate surfactant.

[0113] The anionic non-soap, non-isothionate surfactant is selected from a sulfonate surfactant, a sulfate surfactant, an alkyl ether sulfate surfactant or a combination thereof. Suitable sulfonate surfactants include methyl ester sulfonates, α-olefin sulfonates, alkyl benzene sulfonates, especially alkyl benzene sulfonates. Preferably C 10 To C 15 Alkylbenzene sulfonate (LAS), preferably C 10 To C 14 Alkylbenzene sulfonate (LAS), preferably benzene sulfonate (LAS) having at least 50% by weight of C 12 Alkylbenzene sulfonate, preferably 80% by weight of C 12 Alkylbenzene sulfonate. Preferably, the alkyl chain in the alkylbenzene sulfonate is linear or branched, more preferably linear. The alkylbenzene sulfonate is preferably in the form of a salt having a cation selected from an alkali metal, an alkaline earth metal or an alkanolamine. Preferably, the alkali metal is selected from sodium or potassium, most preferably sodium. Anionic detersive surfactants include C 10 To C 15 Alkylbenzene sulfonates (LAS), alkyl ethoxy sulfates, water-soluble salts of organic sulfuric acid reaction products, reaction products of fatty acids esterified with succinate, olefin sulfonates having from about 10 to about 24 carbon atoms, and beta-alkoxy alkane sulfonates.

[0114] Non-limiting examples of sulfate anionic surfactants useful herein include: 10 To C 20 Primary, branched and random alkyl sulfates (AS); C 10 To C 18 Secondary (2,3) alkyl sulfate; C10 To C 18 Alkyl alkoxy sulfate (AES), wherein x is 1-30; C containing 1-5 ethoxy units 10 To C 18 Alkyl alkoxy carboxylates; mid-chain branched alkyl sulfates as discussed in US 6,020,303 and US 6,060,443; mid-chain branched alkyl alkoxy sulfates as discussed in US 6,008,181 and US 6,020,303; modified alkyl benzene sulfonates (MLAS) as discussed in WO 99 / 05243, WO 99 / 05242 and WO 99 / 05244; methyl ester sulfonates (MES); and alpha-olefin sulfonates (AOS). Such surfactants include alkyl benzene sulfonic acids and their salts as well as alkoxylated or non-alkoxylated alkyl sulfate materials.

[0115] An exemplary anionic surfactant is C 10 To C 18 Alkali metal salts of alkylbenzenesulfonic acids, preferably C 10 To C 18 Alkylbenzene sulfonic acid. In one aspect, the alkyl group is linear. Such linear alkylbenzene sulfonates are referred to as "LAS". Such surfactants and their preparation are described, for example, in U.S. Pat. Nos. 2,220,099 and 2,477,383. Especially preferred are sodium and potassium linear alkylbenzene sulfonates, wherein the average number of carbon atoms in the alkyl group is from about 11 to 14. 11 To C 14 LAS sodium, such as C 12 LAS is a specific example of such a surfactant.

[0116] Another exemplary type of anionic surfactant includes linear or branched ethoxylated alkyl sulfate surfactants. Linear alkyl ether sulfate surfactants are preferred. Such materials, also known as alkyl ether sulfates or alkyl polyethoxylate sulfates, are those corresponding to the formula: R'-O-(C2H4O) n -SO3M, where R' is C8 to C 20 alkyl, n is about 1 to 20, and M is a salt-forming cation. In a specific embodiment, R' is C 10 To C 18 alkyl, n is about 1 to 15, and M is sodium, potassium, ammonium, alkylammonium or alkanolammonium. In more specific embodiments, R' is C 12 To C 16, is about 1 to 6, and M is sodium. Alkyl ether sulfates are usually used in the form of mixtures containing different R' chain lengths and different degrees of ethoxylation. Often, such mixtures will inevitably also contain some non-ethoxylated alkyl sulfate materials, i.e., ethoxylated alkyl sulfate surfactants of the above formula, where n=0.

[0117] Non-ethoxylated alkyl sulfates can also be added separately to the compositions of the present invention. Specific examples of non-alkoxylated (e.g., non-ethoxylated) alkyl ether sulfate surfactants are prepared by mixing high C8 to C 20 Those produced by the sulphation of fatty alcohols.

[0118] Conventional primary alkyl sulfate surfactants have the general formula: R"OSO3 - M + , where R" is usually C8 to C 20 alkyl, which may be linear or branched, and M is a water-solubilizing cation. In a specific embodiment, R" is C 10 To C 15 alkyl, and M is an alkali metal, more specifically, R" is C 12 To C 14 alkyl and M is sodium. Specific non-limiting examples of anionic surfactants useful herein include: a) C 11 To C 18 Alkylbenzene sulfonate (LAS); b) C 10 To C 20 Primary, branched and random alkyl sulfates (AS); c) C having the formula 10 To C 18 Secondary (2,3) alkyl sulfates:

[0119]

[0120] wherein M is hydrogen or a cation providing charge neutrality, and all M units, whether associated with a surfactant or an auxiliary component, may be hydrogen atoms or cations, depending on the form isolated by one skilled in the art or the relative pH of the system in which the compound is used, non-limiting examples of preferred cations include sodium, potassium, ammonium, and mixtures thereof, and x is an integer of at least about 7, preferably at least about 9, and y is an integer of at least 8, preferably at least about 9; d) C 10 To C 18 Alkyl alkoxy sulfate (AES), wherein preferably z is from 1 to 30; e) C 10 To C 18Alkyl alkoxy carboxylates, preferably containing 1 to 5 ethoxy units; f) mid-chain branched alkyl sulfates, as discussed in U.S. Pat. Nos. 6,020,303 and 6,060,443; g) mid-chain branched alkyl alkoxy sulfates, as discussed in U.S. Pat. Nos. 6,008,181 and 6,020,303; h) modified alkyl benzene sulfonates (MLAS), as discussed in WO 99 / 05243, WO 99 / 05242, WO 99 / 05244, WO 99 / 05082, WO 99 / 05084, WO 99 / 05241, WO 99 / 07656, WO 00 / 23549 and WO 00 / 23548; i) methyl ester sulfonates (MES); and j) alpha-olefin sulfonates (AOS).

[0121] Anionic surfactants can exist in acid form, and the acid form can be neutralized to form surfactant salts. Typical reagents for neutralization include metal counterion bases, such as hydroxides, such as NaOH or KOH. Other reagents for neutralizing anionic surfactants include ammonia, amines or alkanolamines. Suitable non-limiting examples include monoethanolamine, diethanolamine, triethanolamine and other straight or branched alkanolamines known in the art, such as 2-amino-1-propanol, 1-aminopropanol, monoisopropanolamine or 1-amino-3-propanol. Amine neutralization can be carried out to a degree that reaches completely or partially, such as a part of anionic surfactant mixture can be neutralized with sodium or potassium, and a part of anionic surfactant mixture can be neutralized with amines or alkanolamines.

[0122] Preferably, the anionic non-isothionate surfactant is a non-soap anionic surfactant. The term "soap" is used herein in its general sense, i.e., an alkali metal or alkanolammonium salt of an aliphatic, alkane or alkene monocarboxylic acid. Sodium, potassium, magnesium, monoethanolammonium cations, diethanolammonium cations and triethanolammonium cations or combinations thereof are most suitable for the purposes of the present invention. Preferably, the anionic non-isothionate surfactant is selected from alkyl sulfate surfactants, alkyl sulfonate surfactants, alkyl ether sulfate surfactants, alkyl ether sulfonate surfactants or combinations thereof. Preferably, the anionic non-isothionate surfactant comprises 0 wt % to 10 wt % of alkyl sulfate, preferably 0 wt % to 5 wt % of alkyl sulfate, preferably PAS. The anionic non-isothionate surfactant may also include 0 wt % to 10 wt % MES, preferably 0 wt % to 5 wt % MES. The anionic non-isothionate surfactant may be SLES, preferably included in the composition in an amount of 0 wt % to 10 wt %, preferably 0 wt % to 5 wt %. Preferably, the anionic non-isothionate surfactant comprises alkylbenzene sulfonate, preferably C 10 To C 15Alkylbenzene sulfonate (LAS), preferably C 10 To C 13 Alkylbenzene sulfonate (LAS) is used as the main anionic non-soap non-isethionate surfactant. Preferably, the amount of alkylbenzene sulfonate surfactant is 3 wt % to 50 wt %, more preferably 3 wt % to 25 wt %. The anionic non-isethionate surfactant is preferably an alkylbenzene sulfonate used alone or in combination with other surfactants as described above.

[0123] The detergent composition of the present invention comprises from 3% to 50% by weight of anionic non-isethionate surfactant. Preferably, the detergent composition comprises at least 4% by weight, also preferably at least 5% by weight, also preferably at least 10% by weight, most preferably at least 15% by weight of anionic non-soap non-isethionate surfactant, but usually not more than 45% by weight, also preferably not more than 40% by weight, still further preferably not more than 35% by weight, still more preferably not more than 30% by weight, most preferably not more than 25% by weight of anionic non-isethionate surfactant, based on the weight of the detergent composition.

[0124] In the solid detergent composition according to the present invention, the ratio of isethionate surfactant to anionic non-isethionate surfactant is in a ratio of 1:1 to 1:200, further preferably the ratio is 1:1 to 160, further preferably the ratio is 1:1 to 1:100, further more preferably 1:5 to 1:200, further preferably the ratio is 1:5 to 1:160, more preferably 1:5 to 1:100. In the detergent composition of the present invention, the total amount of anionic non-soap, non-isethionate surfactant is greater than the isethionate surfactant present in the composition.

[0125] Carbonate Builder

[0126] The detergent compositions of the present invention include sodium carbonate builder.Examples of carbonate builders include alkaline earth metal and alkali metal carbonates as disclosed in German Patent Application No. 2,321,001.

[0127] Carbonate builders preferably also include other alkali metal carbonates, alkaline earth metal carbonates or mixtures thereof. Preferred alkali metal carbonates are sodium carbonate and / or potassium carbonate, wherein sodium carbonate is particularly preferred. Further preferred sodium carbonate accounts for at least 75 wt %, more preferably at least 85 wt %, even more preferably at least 90 wt % of the alkali metal carbonate builder gross weight.

[0128] The detergent composition of the present invention comprises 0.1 wt % to 40 wt % of sodium carbonate builder. Preferably, based on the weight of the cleaning composition, the detergent composition comprises at least 0.8 wt %, also preferably at least 1 wt %, also preferably at least 2 wt %, most preferably at least 5 wt % of carbonate builder, but typically no more than 38 wt %, also preferably no more than 35 wt %, most preferably no more than 30 wt % of carbonate builder.

[0129] Non-carbonate detergent

[0130] In addition to carbonate builders, detergent compositions of the present invention may preferably include other inorganic non-carbonate builders. Other preferred builders may be selected from silicates, silicon dioxide, zeolite phosphates or mixtures thereof. Other non-carbonate builders may be organic builders, including but not limited to succinate, carboxylates, malonates, polycarboxylates, citric acid or their salts.

[0131] Suitable silicates include water-soluble sodium silicates having a SiO2:Na2O ratio of 1.0 to 2.8, preferably a ratio of 1.6 to 2.4, and most preferably a ratio of 2.0. The silicate may be in the form of an anhydrous salt or a hydrated salt. Sodium silicate having a SiO2:Na2O ratio of 2.0 is the most preferred silicate.

[0132] The content of silicate in the detergent composition according to the present invention is preferably from 5% to 50% by weight, more preferably from 10% to 40% by weight of the composition.

[0133] The composition is also phosphate-free, ie the composition has no intentionally added phosphate builders, such as STPP. Preferably the detergent composition comprises from 0 wt% to 8 wt% zeolite, also preferably the composition has no intentionally added zeolite.

[0134] Form of composition

[0135] The composition of the present invention is in solid form. The composition according to the present invention can be prepared by various conventional methods known in the art, and these methods include but are not limited to the mixing (including dry mixing) of ingredients, pressing such as agglomeration, extrusion, tableting or spray drying of various compounds contained in the detergent component, or the mixing of these technologies, wherein the components herein can also be prepared by, for example, pressing (including extrusion and agglomeration) or spray drying. The detergent composition can be prepared by any conventional method, and particularly preferred are the techniques of slurry preparation and spray drying.

[0136] Composition of the present invention can adopt various physical solid forms, including the form such as powder, particulate, granule, ribbon, noodle shape, paste, tablet, thin slice, lozenge and strip, and preferred composition is powder, granule or tablet form, more preferably composition is powder form.Composition can be in the form of unit dose formulation, delayed delivery formulation, detergent contained on or in porous substrate or nonwoven sheet, and other suitable forms that may be obvious to those skilled in the art according to the teaching of this paper.Composition according to the present invention can preferably be selected from the form of powder, unit dose or pouch form, tablet, gel, paste, rod or thin slice.Preferably, composition is used for manual washing.Preferably, composition of the present invention is solid laundry detergent composition.Preferably, composition is the form of spray-dried powder.Composition preferably has the density greater than 350 grams per liter, more preferably greater than 450 grams per liter or even greater than 570 grams per liter.

[0137] The composition according to the present invention has a pH of 8 to 13, preferably 8.5 to 11.5, more preferably 8.5 to 11, when measured at 1% by weight dilution in deionized water at 25°C. Sodium carbonate builder provides the desired pH to the composition. In addition to the essential sodium carbonate builder, the composition of the present invention preferably also comprises a further alkalinity source selected from bicarbonates and hemibicarbonates. The composition may preferably comprise a buffer.

[0138] Optional Ingredients

[0139] The detergent composition of the present invention may preferably include one or more optional ingredients selected from cleaning and care ingredients. Optional ingredients include one or more auxiliary cleaning additives selected from polymers, enzymes, enzyme stabilizers, brighteners, toners, bleaches, chelating agents, humectants, perfumes, fillers or carriers, alkaline systems, buffers or combinations thereof.

[0140] polymer:

[0141] The compositions of the present invention may preferably include polymers which provide cleaning or conditioning benefits.

[0142] Cleaning polymers include, but are not limited to, soil release polymers, carboxylate polymers, anti-redeposition polymers, cellulosic polymers, conditioning polymers, dye transfer inhibiting polymers, amphiphilic alkoxylated grease cleaning polymers, clay soil cleaning polymers, soil suspending polymers or mixtures thereof.

[0143] Suitable carboxylate polymers include polymers such as maleate / acrylate random copolymers or polyacrylate homopolymers. Suitable carboxylate polymers include polyacrylate homopolymers having a molecular weight of 4,000 to 9,000 Da; maleate / acrylate random copolymers having a molecular weight of 30,000 to 100,000 Da, or 50,000 to 100,000 Da, or 60,000 to 80,000 Da.

[0144] Likewise suitable are homo- or copolymeric carboxylic acids, such as polyacrylic acid, polymethacrylic acid, polymaleic acid, copolymers of acrylic acid or methacrylic acid with maleic acid and copolymers of maleic acid with vinyl methyl ether, these polymeric acids being present as free acids or preferably as sodium salts. Preferred representatives of this group are sodium polyacrylate and the sodium salts of acrylic acid-maleic acid copolymers, wherein the weight ratio of acrylic acid:maleic acid is from 10:1 to 1:1, preferably from 7:1 to 2:1. These compounds generally have a molecular weight of from 3,000 to 150,000, preferably from 5,000 to 100,000.

[0145] Soil release polymers are designed to modify the surface of fabrics to facilitate easy removal of soil. Typically, soil release polymers are based on derivatives thereof of polyethylene glycol / vinyl acetate copolymers or polyethylene terephthalate polyesters and combinations thereof. Preferred soil release polymers include polymers of aromatic dicarboxylic acids and alkylene glycols (including polymers containing polyalkylene glycols), as described in WO2009 / 153184, EP2692842 and WO2014 / 019903. Suitable soil release polymers are available from Clariant as A series of polymers are sold, e.g. SRN240, SRN100, SRN170, SRN300, SRN325, SRA100 and SRA 300. Other suitable soil release polymers are available from Rhodia as Repel-o- A series of polymers are sold, such as Repel-o- SF2, Repel-o- SRP6 and Repel-o- Crystal. Preferred polymers are selected from polyester soil release polymers, end-capped and non-end-capped sulfonated PET / POET polymers, end-capped and non-end-capped unsulfonated PET / POET polymers, or combinations thereof.

[0146] Preferably, the content of these soil release polymers in the auxiliary agent particles is 3% to 15% by weight, at least 5% by weight, preferably at least 6% by weight, preferably at least 6.5% by weight, most preferably at least 7% by weight, but usually not more than 14% by weight, preferably not more than 13% by weight, most preferably not more than 12% by weight.

[0147] Anti-redeposition polymers are designed to suspend or disperse soil. Typically, anti-redeposition polymers are polyethylene glycol polymers, polycarboxylate polymers, polyethylene imine polymers, or mixtures thereof. Such polymers are available under the trade name CP5 (neutralized form) and CP45 (acid form) is available from BASF. Suitable anti-redeposition polymers are ethoxylated and / or propoxylated polyethyleneimines or polycarboxylate materials, for example, homopolymers or copolymers based on acrylic acid available from Dow Chemical under the trademark ACUSOL, from Akzonobel under the trademark Alcosperse or from BASF under the trademark Sokolan.

[0148] Suitable care polymers include cationically modified or hydrophobically modified cellulosic polymers. Such modified cellulosic polymers can provide anti-wear benefits and dye lock benefits to fabrics during the wash cycle. Suitable cellulosic polymers include cationically modified hydroxyethyl cellulose. Other suitable care polymers include dye lock polymers such as condensation oligomers produced by condensation of imidazole and epichlorohydrin, preferably in a ratio of 1:4:1. Suitable commercially available dye lock polymers are FDI (Cognis). Preferably, the auxiliary granules comprise 0.01% to 10% by weight, preferably 0.05% to 0.5% by weight, of care polymers.

[0149] An example of a suitable chelating polymer is DEQUEST TM , organic phosphonate-type chelating polymers and alkane hydroxyphosphonates sold by Monsanto. The cleaning composition is preferably substantially free of phosphate-based chelating polymers. "Substantially free" herein means that no phosphate-based chelating polymers are intentionally added.

[0150] Enzymes:

[0151] The compositions of the present invention preferably comprise one or more enzymes.Preferred examples of enzymes include those which provide cleaning performance and / or fabric care benefits.

[0152] Examples of suitable enzymes include, but are not limited to, hemicellulases, peroxidases, proteases, cellulases, xylanases, lipases, xyloglucanases, phospholipases, esterases, cutinases, pectinases, mannanases, pectate lyases, keratinase, reductases, oxidases, phenoloxidases, lipoxygenases, ligninases, pullulanases, tannases, pentosanases, malanases, G-glucanases, arabinosidases, hyaluronidases, chondroitinases, laccases and amylases, or mixtures thereof. A typical combination is an enzyme mixture, which may include, for example, proteases and lipases in combination with one or more of amylases, mannanases and cellulases. When present in the detergent composition, the aforementioned additional enzymes may be present at a level of about 0.00001% to about 2%, about 0.0001% to about 1% or 0.001% to about 0.5% enzyme protein by weight of the detergent composition.

[0153] In one aspect, preferred enzymes will include proteases. Suitable proteases include metalloproteinases and serine proteases, including neutral or alkaline microbial serine proteases, such as subtilisin (EC 3.4.21.62). Suitable proteases include those known to those skilled in the art, and are preferably from animals, plants or microbial sources. In one aspect, such suitable proteases can be microbial sources. Suitable proteases include chemical or genetically modified mutants of the above-mentioned suitable proteases. In one aspect, suitable proteases can be serine proteases, such as alkaline microbial proteases or / and trypsin-type proteases.

[0154] Suitable commercially available proteases include those marketed under the trade name HYDROGEN® by Novozymes A / S (Denmark). and Those sold by Genencor International under the trade name and Purafect Those sold by Solvay Enzymes under the trade name and those sold by Optimase.

[0155] Suitable alpha-amylases include those of bacterial or fungal origin. Chemical or genetically modified mutants (variants) are included. Preferred alkaline alpha-amylases are derived from strains of Bacillus, such as Bacillus licheniformis, Bacillus amyloliquefaciens, Bacillus stearothermophilus, Bacillus subtilis or other Bacillus species, such as Bacillus NCIB 12289, NCIB12512, NCIB 12513, DSM 9375 (USP 7,153,818), DSM 12368, DSM Zno.12649, KSM AP1378 (WO97 / 00324), KSM K36 or KSM K38 (EP 1,022,334). Preferred amylases include amylase variants disclosed in WO 96 / 23874, WO 06 / 002643, WO 09 / 149130 and WO 00 / 60060, which are incorporated herein by reference.

[0156] Suitable commercially available α-amylases include TERMAMYL and (Novozymes A / S, Bagsvaerd, Denmark), 15 AT 9000Biozym BiotechTrading GmbH Wehlistrasse 27b A-1200Wien Austria, OPTISIZE HT and PURASTAR (Genencor International Inc., Palo Alto, California) and (Kao, 14-10 Nihonbashi Kayabacho, 1-chome, Chuo-ku Tokyo 103-8210, Japan). In one aspect, suitable amylases include STAINZYME and and mixtures thereof.

[0157] In one aspect, such enzymes may be selected from: lipases, including "first cycle lipases". In one aspect, the lipase is a first wash lipase, preferably a variant of a wild-type lipase from Thermomyces lanuginosus comprising one or more of the T231R and N233R mutations. The wild-type sequence is the 269 amino acids (amino acids 23-291) of Swissprot accession number Swiss-Prot 059952 (derived from Humicola ianuginosa). Preferred lipases will include those sold under the trade name and Those that are sold.

[0158] In one aspect, other preferred enzymes include microbially derived endoglucanases (EC 3.2.14) exhibiting endo-β-1,4-glucanase activity (including bacterial polypeptides endogenous to members of the genus Bacillus having a sequence having at least 90%, 94%, 97% and even 99% identity to the amino acid sequence SEQ ID NO: 2 in 7,141,403B2) and mixtures thereof. Suitable endoglucanases are sold under the trade name and (Novozymes A / S, Bagsvaerd, Denmark).

[0159] Other preferred enzymes include those sold under the trade name Pectate lyase is sold under the trade name (both from Novozymes A / S, Bagsvaerd, Denmark) and Mannanase sold by Genencor International Inc. (Genencor International Inc., Palo Alto, California).

[0160] Enzyme stabilization system:

[0161] The enzyme-containing compositions described herein may optionally include 0.001% to 10%, in some examples about 0.005% to about 8%, and in other examples about 0.01% to about 6% of an enzyme stabilizing system by weight of the composition. The enzyme stabilizing system may be any stabilizing system compatible with the detersive enzyme. Such a system may be inherently provided by other formulation actives, or added separately, for example, by the formulator or by the manufacturer of the detergent ready-to-use enzyme. Such a stabilizing system may, for example, include calcium ions, boric acid, propylene glycol, short-chain carboxylic acids, boric acid, chlorine bleach scavengers, and mixtures thereof, and is designed to solve different stability problems depending on the type and physical form of the cleaning composition. In the case of a detergent composition containing a protease, a reversible protease inhibitor may be added, such as a boron compound, including borates, 4-formylphenylboronic acid, phenylboronic acid, and derivatives thereof, or compounds such as calcium formate, sodium formate, and 1,2-propylene glycol to further improve stability.

[0162] Brightener:

[0163] Fluorescent whitening agents or other brightening or whitening agents may be incorporated at a level of 0.01% to 1.2% by weight of the composition. Commercial whitening agents suitable for use in the present invention may be divided into subgroups including, but not limited to, diphenylethylene, pyrazoline, coumarin, benzoxazole, carboxylic acid, methine cyanine, dibenzothiophene-5,5-dioxide, azoles, derivatives of 5- and 6-membered heterocycles, and other various agents. Preferred commercially available whitening agents include Tinopal AMS-GX from Ciba-Geigy Corporation, Tinopal UNPA-GX from Ciba-Geigy Corporation, Tinopal ABM-GX from Ciba-Geigy Corporation. The whitening agent may be added in particulate form or as a premix with a suitable solvent (e.g., nonionic surfactant, monoethanolamine, propylene glycol).

[0164] Fabric Toner:

[0165] The composition may include a fabric tinting agent (sometimes referred to as a toner, bluing agent or brightener). Typically, the tinting agent provides a blue or purple hue to the fabric. The tinting agent may be used alone or in combination to produce a specific tinting hue and / or to tone different fabric types. This can be provided, for example, by mixing red and green-blue dyes to produce a blue or purple hue. The tinting agent may be selected from dyes of any known chemical class, including but not limited to acridine, anthraquinone (including polycyclic quinones), azine, azo (e.g., monoazo, disazo, triazo, tetrazo, polyazo), including 30 premetallated azo, benzodifuran and benzodifuranone, carotenoids, coumarins, cyanines, diaza hemicyanines, diphenylmethanes, formazans, hemicyanines, indigos, methane, naphthalimides, naphthoquinones, nitro and nitroso, oxazines, phthalocyanines, pyrazoles, stilbenes, styryls, triarylmethanes, triphenylmethanes, xanthenes and mixtures thereof.

[0166] Suitable fabric hues include dyes, dye-clay conjugates and organic and inorganic pigments.

[0167] Additional surfactants:

[0168] In addition to isethionate surfactants and anionic non-isethionate surfactants, the detergent compositions according to the present invention may include additional surfactants selected from, but not limited to, nonionic surfactants, amphoteric surfactants, cationic surfactants, zwitterionic surfactants or mixtures thereof.

[0169] Nonionic surfactants

[0170] Non-limiting examples of nonionic surfactants include: 12 To C 18 Alkyl ethoxylates, such as NEODOL nonionic surfactants from Shell; C6 to C 12 Alkylphenol alkoxylates, wherein the alkoxylate units are a mixture of ethyleneoxy and propyleneoxy units; C 12 To C 18 Alcohols and C6 to C 12 Condensates of alkylphenols with ethylene oxide / propylene oxide block alkylpolyamine ethoxylates, such as PLURONIC from BASF; C 14 To C 22 Medium chain branched alcohols, BA, as discussed in US 6,150,322; C 14 To C 22Mid-chain branched alkyl alkoxylates, BAEx, wherein x is 1 to 30, as discussed in US 6,153,577, US 6,020,303, and US 6,093,856; alkyl polysaccharides as described in U.S. Pat. No. 4,565,647, issued Jan. 26, 1986 to Llenado; in particular alkyl polyglycosides as discussed in US 4,483,780 and US 4,483,779; polyhydroxy detergent acid amides as described in US 5,332,528; and ether-terminated poly(alkoxylated) alcohol surfactants as described in US 6,482,994 and WO 01 / 42408.

[0171] Non-limiting examples of semi-polar nonionic surfactants include water-soluble amine oxides containing an alkyl moiety of about 10 to about 18 carbon atoms and 2 moieties selected from an alkyl moiety containing about 1 to about 3 carbon atoms and a hydroxyalkyl moiety; water-soluble phosphine oxides containing an alkyl moiety of about 10 to about 18 carbon atoms and 2 moieties selected from an alkyl moiety containing about 1 to about 3 carbon atoms and a hydroxyalkyl moiety; and water-soluble sulfoxides containing an alkyl moiety of about 10 to about 18 carbon atoms and a moiety selected from an alkyl moiety containing about 1 to about 3 carbon atoms and a hydroxyalkyl moiety. See WO 01 / 32816, US 4,681,704 and US 4,133,779.

[0172] Cationic surfactants

[0173] Non-limiting examples of cationic surfactants include: quaternary ammonium surfactants, which may have up to 26 carbon atoms, including: alkoxylated quaternary ammonium (AQA) surfactants, such as discussed in US 6,136,769; dimethyl hydroxyethyl quaternary ammonium, such as discussed in 6,004,922; dimethyl hydroxyethyl lauryl ammonium chloride; polyamine cationic surfactants, such as discussed in WO 98 / 35002, WO 98 / 35003, WO 98 / 35004, WO 98 / 35005 and WO 98 / 35006; cationic ester surfactants, such as discussed in U.S. Pat. Nos. 4,228,042, 4,239,660, 4,260,529 and US 6,022,844; and amino surfactants, such as discussed in US 6,221,825 and WO 00 / 47708, particularly amidopropyl dimethylamine (APA).

[0174] Zwitterionic surfactants

[0175] Non-limiting examples of zwitterionic or amphoteric surfactants include: derivatives of secondary and tertiary amines, derivatives of heterocyclic secondary and tertiary amines, or derivatives of quaternary ammonium, quaternary phosphonium or tertiary sulfonium compounds. See U.S. Pat. No. 3,929,678, column 19, line 38 to column 22, line 48, for example, zwitterionic surfactants; betaines, including alkyl dimethyl betaine and coconut dimethylamidopropyl betaine, C8 to C 18 (For example, from C 12 To C 18 ) amine oxides and sulfo- and hydroxybetaines, such as N-alkyl-N,N-dimethylammonium-1-propane sulfonates, where the alkyl group can be C8 to C 18 , and in certain embodiments, C 10 To C 14 Non-limiting examples of amphoteric surfactants include: aliphatic derivatives of secondary or tertiary amines, or aliphatic derivatives of heterocyclic secondary and tertiary amines, wherein the aliphatic group may be straight chain or branched. One of the aliphatic substituents may contain at least about 8 carbon atoms, such as about 8 to about 18 carbon atoms, and at least one contains an anionic water-soluble group, such as a carboxyl group, a sulfonate group, a sulfate group. Suitable examples of amphoteric surfactants are described in U.S. Patent No. 3,929,678, column 19, lines 18-35.

[0176] filler

[0177] Optionally, the solid laundry detergent composition comprises a filler, such as sodium sulfate, sodium chloride, calcite, dolomite or mixtures thereof.

[0178] Washing method :

[0179] According to a second aspect of the present invention, there is disclosed a method for washing a fabric surface using a detergent composition according to the first aspect of the present invention, the method comprising the following steps:

[0180] i) preparing an aqueous washing liquor having an effective amount of foam by contacting a detergent composition according to the first aspect with a liquid;

[0181] ii) soaking the fabric surface in a wash liquor for a predetermined period of time; and

[0182] iii) optionally rinsing the fabric surface.

[0183] Preferably, rinsing of the fabric surface is performed in less than 3 rinse steps, preferably less than 2 rinse steps, more preferably in a single rinse step.

[0184] According to a second aspect, the method comprises the step of preparing an aqueous wash liquor of the detergent composition in a liquid.The wash liquor is preferably prepared by dissolving the detergent composition in water.

[0185] In a next step, the fabric surface is subjected to a washing step, preferably prior to the above-mentioned optional rinsing step. For the purposes of the present invention, washing includes but is not limited to scrubbing, brushing and mechanical agitation.

[0186] The composition is preferably used at a concentration of about 200 ppm to about 10,000 ppm in solution. The water temperature is preferably in the range of about 5°C to about 100°C.

[0187] The machine washing method herein generally comprises treating soiled laundry in a washing machine with an aqueous wash solution having dissolved or dispensed therein an effective amount of a detergent composition according to the present invention. An effective amount of the detergent composition refers to 20 g to 300 g of the product dissolved or dispersed in a wash solution having a volume of 5 to 65 liters, which is a typical product dosage and wash solution volume commonly used in conventional machine washing methods.

[0188] Also included are hand wash methods, as well as combined hand wash using a semi-automatic washing machine.

[0189] According to a third aspect of the present invention, there is disclosed the use of an isethionate surfactant, a suds suppressor, an anionic non-soap non-isethionate surfactant selected from an alkyl sulfonate surfactant, an alkyl sulfate surfactant, an alkoxylated sulfate surfactant or a combination thereof, and a sodium carbonate builder for providing rapid suds generation in the wash liquor in the main wash stage and rapid suds collapse in the rinse stage, wherein the ratio of isethionate surfactant to anionic non-isethionate surfactant in the detergent composition is in a ratio of 1:1 to 1:160.

[0190] The present invention will now be more fully described with the aid of the following non-limiting examples. It should be understood that other modifications may be made to the present invention within the technical scope of those skilled in the art without departing from the spirit and scope of the present invention. Unless a specific method is given, all preparations illustrated below are prepared by conventional preparation and mixing methods.

[0191] Unless otherwise noted, all parts, percentages and ratios herein are by weight. Some components may be obtained from suppliers as dilute solutions. Unless otherwise noted, the levels given reflect the weight percentage of active material. Excluded diluents and other materials are included as "minor materials".

[0192] Example

[0193] Example 1

[0194] Different comparative detergent compositions and detergent compositions according to the present invention were prepared having the ingredients provided in Table 1. The detergent compositions used were as follows:

[0195] Comparative Example (Comp A) : This is a solid laundry detergent composition comprising anionic surfactant (LAS) and sodium carbonate builder, but free of isethionate surfactant (SCI) and without foam suppressor (silicone oil).

[0196] Comparative Example (Comp B) : This is a solid laundry detergent composition comprising anionic surfactant (LAS), sodium carbonate builder and isethionate surfactant (SCI), but does not contain foam suppressor (silicone oil).

[0197] Comparative Example (Comp C) : This is a solid detergent composition comprising anionic surfactant (LAS), sodium carbonate builder and foam suppressor (silicone oil), but does not contain isethionate surfactant (SCI).

[0198] Embodiment according to the present invention (Ex 1) : This is a solid detergent composition comprising anionic surfactant (LAS), sodium carbonate builder, foam inhibitor (silicone oil) and isethionate surfactant (SCI).

[0199] Suds Measurement Method: The suds volume generated by the various solid laundry detergent compositions described above was measured using an automated drum shaking protocol.

[0200] Automatic drum shaking solution:

[0201] In this protocol, a known amount of detergent powder is first added to a beaker containing water to form a 3 gpl washing liquid. The hardness of the water is 24°FH (Ca:Mg, 2:1). The beaker is placed on a magnetic stirrer at a speed of 150 rpm for 20 minutes to allow the detergent composition to completely dissolve in the water to form an aqueous liquid (AL).

[0202] A. In the first set of foam measurements, 40 mL of the aqueous liquid (AL) formed above was placed in a 250 mL stoppered graduated glass cylinder. The glass cylinder was marked at 2 ml intervals and had a height of 14 inches from the inside of the bottom to the 250 ml mark. Next, the cylinder was clamped in an automatic cylinder oscillator (rotating device) that clamped the cylinder relative to a rotation axis passing through the center of the graduated cylinder.

[0203] a) The cylinder was rotated at a speed of 30 revolutions per minute. The cylinder was allowed to complete 5 revolutions and stopped in a vertical position. The height of the foam from the bottom was recorded in mL and is provided in Table 1 below.

[0204] b) After recording the foam height, rotate the cylinder again and allow it to complete 5 more revolutions before stopping in the vertical position. Measure the height of the foam after 10 revolutions from the bottom and record in ml. The measured foam height is provided in Table 1 below.

[0205] B. In the second set of foam measurements, 4 mL of the prepared aqueous liquid (AL) was placed in a 250 mL stoppered graduated glass cylinder. 36 ml of water was added thereto. The hardness of the water was 24°FH (Ca:Mg, 2:1). Next, the cylinder was clamped in an automatic cylinder shaker (rotating device) and rotated for 5 and 10 revolutions, respectively, as described above, and the measured foam heights were recorded and provided in Table 1 below.

[0206] The rest time between the first and second 5-rev sequences in this set of experiments was maintained in the same manner as in the first set of experiments.

[0207] Foam measurements were similarly performed for all compositions provided in Tables 1 to 3 below.

[0208] Table 1

[0209]

[0210] As shown in the data, in the first set of experiments, which illustrate the main wash stage in the washing process where consumers expect foam, the detergent composition according to the present invention shows good foam compared to Comparative Example A (LAS without foam inhibitor) and Comparative Example C (LAS with foam inhibitor). The detergent composition according to the present invention containing a foam inhibitor shows similar foam characteristics to Comparative Example B (surfactant without foam inhibitor) in the second set of experiments. The second set of experiments illustrates the rinse stage in the washing process where foam removal is required, showing that the composition according to the present invention achieves rapid foam reduction compared to Comparative Example A or Comparative Example B. Therefore, the above group of examples clearly shows that the detergent composition according to the present invention shows good foam volume in the initial wash cycle, and thereafter it also provides the desired low foaming performance in the rinse stage, which minimizes the waste of clean water required for rinsing.

[0211] Example 2: Foam characteristics of solid laundry detergent compositions having different ratio ranges of isethionate surfactant and anionic non-isethionate surfactant

[0212] Table 2

[0213]

[0214]

[0215] As shown in Table 2, the composition according to the invention having a ratio of 1:90 of isethionate surfactant to anionic non-isethionate surfactant (Invention 2) showed good foam in the wash liquor and fast foam reduction in the rinse stage.

[0216] Table 3

[0217]

[0218]

[0219] As shown in Table 3, the composition according to the invention having a ratio of 1:9 of isethionate surfactant to anionic non-isethionate surfactant (Invention 3) exhibited good foam in the wash liquor and rapid foam reduction in the rinse phase.

[0220] Thus, the above set of examples clearly demonstrates that the detergent composition according to the present invention exhibits good foam volume in the initial wash cycle and thereafter it also provides desirable low foaming performance in the rinse phase, which minimizes the wastage of clean water required for rinsing.

Claims

1. A solid laundry detergent composition comprising: i) 0.2 to 4 wt% of an isethionate surfactant of formula (I) Where R 1 Indicates straight or branched C8 to C 18 Alkyl or alkenyl; R 2 represents hydrogen or methyl, and R 3 , R 4 and R 5 represents a hydrogen atom, and M + represents a cation; ii) 0.05 wt% to 5 wt% of a foam inhibitor, wherein the foam inhibitor is selected from silicone compounds, aminosilicone compounds, glycerol derivatives, diester compounds, fatty acids, soaps, polyols or combinations thereof; iii) 3 to 50 wt% of an anionic, non-soap, non-isethionate surfactant selected from an alkyl sulfate surfactant, an alkyl sulfonate surfactant, an alkyl ether sulfate surfactant, or a combination thereof, wherein the alkyl sulfonate surfactant is C 10 To C 18 Alkali metal salts of alkylbenzene sulfonic acids; and iv) 0.1 to 40% by weight of sodium carbonate builder, wherein the ratio of the isethionate surfactant to the anionic, non-soap, non-isethionate surfactant is in a ratio of 1:1 to 1:

200.

2. The composition according to claim 1, wherein the foam inhibitor is an aminosilicone compound selected from: i) having at least one siloxane unit of the general formula: and at least one siloxane unit of the following general formula: An amino-functional organopolysiloxane of the general formula (III) in: R 1 are the same or different and are a hydrogen atom, a monovalent, optionally fluorine-, chlorine- or bromine-substituted C1 to C 18 Hydrocarbon or C1 to C 12 Alkoxy or hydroxy, wherein Q is of the general formula -R 2 -[NR 3 -(CH2) m -] x NR 4 R 5 An amine group or a partially or fully protonated form thereof at the nitrogen atom, wherein R 2 It is a two-price C1 to C 18 Hydrocarbon, R 3 is a hydrogen atom or a C1 to C 10 Alkyl, R 4 is a hydrogen atom or a C1 to C 10 Alkyl, R 5 is a hydrogen atom or a C1 to C 10 Alkyl, a is 0, 1 or 2, b is 1, 2 or 3, c is 0, 1, 2 or 3, m is 2, 3 or 4, and x is 0, 1 or 2, and the sum of a+b is less than or equal to 3; ii) amino-functional organopolysiloxane having the general formula (V) Y j R 1 3-j SiO(RR 2 SiO)z(YR 1 SiO) n (Me 2 SiO) v SiR 1 3-k Y k (V) in: Y is the general formula -R 3 -[NR 4 -(CH2) m -] x NR 5 R 6 An amine group or a protonated amine group, or an acylated form of the amine group Y, R 1 The same or different and are monovalent C1 to C6 alkyl or C1 to C6 alkoxy or hydroxyl, R is a monovalent C1 to C6 alkyl group, R 2 is a monovalent C2 to C6 alkyl group, R 3 C1 to C 10 Alkylene, R 4 is hydrogen or C1 to C4 alkyl, R 5 and R 6 independently represents hydrogen or C1 to C4 alkyl; j is an integer from 0 to 3, k is an integer from 0 to 3, z is an integer from 1 to 500, n is an integer from 1 to 70, m is an integer from 1 to 10, v is an integer from 0 to 15, and x is an integer from 0 to 1.

3. The composition according to claim 2, wherein ii) R 1 C1 to C 18 A hydrocarbon group or a C1 to C3 alkoxy group or a hydroxy group.

4. The composition according to claim 2, wherein ii) R 2 It is a divalent C2 to C4 hydrocarbon group.

5. The composition according to claim 2, wherein In ii), a is 0 or 1.

6. The composition according to claim 2, wherein b in ii) is 1.

7. The composition according to claim 2, wherein In ii), c is 2 or 3.

8. The composition according to claim 2, wherein In ii), m is 2 or 3.

9. The composition according to claim 2, wherein ii) where x is 0 or 1.

10. The composition according to claim 1, wherein the foam inhibitor is a diester compound having the general formula (VI) in R 1 may be the same or different, and are selected from linear or branched C1 to C 10 Alkyl or C3 to C8 cycloalkyl; m is 0, 1, 2, or 3; n is 2, 3, or 4, and R is H or a linear or branched C1 to C 30 Alkyl, wherein at least one group R is C1 to C 30 alkyl.

11. The composition of claim 1, wherein the glycerol derivative compound has the general formula (VII): R 1 OCH2CH(OH)CH2OR 2 (VII) Where R 1 Is H or C 12 To C 18 Saturated or unsaturated alkyl ester and R 2 C 12 To C 18 Saturated or unsaturated alkyl esters.

12. The composition of claim 1 wherein the anionic, non-soap, non-isethionate surfactant is C 10 To C 14 Alkali metal salts of alkylbenzenesulfonic acids.

13. The composition of any one of claims 1-12, wherein the pH of the composition is from 8 to 13 when measured at 1 wt.% dilution in deionized water at 25°C.

14. The composition of any one of claims 1-12, wherein the pH of the composition is 8.5 to 11 when measured at 1 wt.% dilution in deionized water at 25°C.

15. A composition according to any one of claims 1 to 12, wherein the solid detergent composition is in the form of a powder, or contained on or in a porous substrate or nonwoven sheet, or enclosed in a water-soluble pouch.

16. A composition according to any one of claims 1 to 12, wherein the solid detergent composition is in the form of particulates, or contained on or in a porous substrate or nonwoven sheet, or enclosed in a water-soluble pouch.

17. A composition according to any one of claims 1 to 12, wherein the solid detergent composition is in the form of a bar, or contained on or in a porous substrate or nonwoven sheet, or enclosed in a water soluble pouch.

18. A composition according to any one of claims 1 to 12, wherein the solid detergent composition is in the form of granules, or contained on or in a porous substrate or nonwoven sheet, or enclosed in a water-soluble pouch.

19. A method for washing a fabric surface using a detergent composition according to any one of claims 1 to 18, the method comprising the following steps: i) preparing a wash liquor having an effective amount of foam by contacting the detergent composition with a liquid; ii) soaking the fabric surface in the washing liquid for a predetermined period of time; and iii) optionally rinsing the fabric surface.

20. Use of 0.2 wt% to 4 wt% of an isethionate surfactant of formula (I) as claimed in claim 1, 0.05 wt% to 5 wt% of a suds suppressor, 3 wt% to 50 wt% of an anionic, non-soap, non-isethionate surfactant selected from sulfonate surfactants, sulfate surfactants, alkoxylated sulfate surfactants or mixtures thereof, and 0.1 wt% to 40 wt% of a sodium carbonate builder in a solid laundry detergent composition to provide rapid foam generation in the wash liquor in the main wash stage and rapid foam collapse in the rinse stage, wherein the ratio of the isethionate surfactant to the anionic, non-soap, non-isethionate surfactant is in a ratio of 1:1 to 1:200, wherein the suds suppressor is selected from silicone compounds, aminosilicone compounds, glycerol derivatives, diester compounds, fatty acids, soaps, polyols or combinations thereof, and wherein the alkyl sulfonate surfactant is C 10 To C 18 Alkali metal salts of alkylbenzenesulfonic acids.

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