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EP3390607B1 - Penta-gefertigte flüssige waschmittelzusammensetzung - Google Patents

Penta-gefertigte flüssige waschmittelzusammensetzung Download PDF

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Publication number
EP3390607B1
EP3390607B1 EP16829240.7A EP16829240A EP3390607B1 EP 3390607 B1 EP3390607 B1 EP 3390607B1 EP 16829240 A EP16829240 A EP 16829240A EP 3390607 B1 EP3390607 B1 EP 3390607B1
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EP
European Patent Office
Prior art keywords
acid
builder
sodium
detergent composition
use according
Prior art date
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EP16829240.7A
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English (en)
French (fr)
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EP3390607A1 (de
Inventor
John O'donnell
William Shore
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Henkel AG and Co KGaA
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Henkel AG and Co KGaA
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Classifications

    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D17/00—Detergent materials or soaps characterised by their shape or physical properties
    • C11D17/0008—Detergent materials or soaps characterised by their shape or physical properties aqueous liquid non soap compositions
    • C11D17/0026—Structured liquid compositions, e.g. liquid crystalline phases or network containing non-Newtonian phase
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/02—Inorganic compounds ; Elemental compounds
    • C11D3/04—Water-soluble compounds
    • C11D3/08—Silicates
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/02—Inorganic compounds ; Elemental compounds
    • C11D3/04—Water-soluble compounds
    • C11D3/10—Carbonates ; Bicarbonates
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/16—Organic compounds
    • C11D3/20—Organic compounds containing oxygen
    • C11D3/2075—Carboxylic acids-salts thereof
    • C11D3/2082—Polycarboxylic acids-salts thereof
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/16—Organic compounds
    • C11D3/20—Organic compounds containing oxygen
    • C11D3/2075—Carboxylic acids-salts thereof
    • C11D3/2086—Hydroxy carboxylic acids-salts thereof
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/16—Organic compounds
    • C11D3/26—Organic compounds containing nitrogen
    • C11D3/33—Amino carboxylic acids
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/16—Organic compounds
    • C11D3/36—Organic compounds containing phosphorus
    • C11D3/361—Phosphonates, phosphinates or phosphonites
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/16—Organic compounds
    • C11D3/37—Polymers
    • C11D3/3746—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • C11D3/3757—(Co)polymerised carboxylic acids, -anhydrides, -esters in solid and liquid compositions
    • C11D3/3765—(Co)polymerised carboxylic acids, -anhydrides, -esters in solid and liquid compositions in liquid compositions
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D2111/00—Cleaning compositions characterised by the objects to be cleaned; Cleaning compositions characterised by non-standard cleaning or washing processes
    • C11D2111/10—Objects to be cleaned
    • C11D2111/12—Soft surfaces, e.g. textile

Definitions

  • the present invention relates to the use of an aqueous, phosphate-free, structured liquid detergent composition, in particular a heavy duty liquid detergent (HDL) that comprises a builder system, a surfactant system and water, wherein the builder system comprises five separate builder components as detergent for textiles.
  • HDL heavy duty liquid detergent
  • the invention further relates to methods for washing of textiles using the detergents of the invention.
  • Liquid detergent compositions are well-known in the art and widely used. Over recent years, the have become more and more popular with the consumers because they offer a number of advantages over solid compositions, including, for example, the ease of dosing, dispensing and dissolving into a laundering liquor. In addition, they are perceived to be safer and less harsh to the textiles and environment compared to solid compositions. In particular for laundering colored fabrics they have gained popularity ever since their introduction on the market.
  • liquid detergent compositions in particular phosphate-free heavy duty liquid (HDL) detergents suffer from physical and chemical instability and viscosity problems. This is particularly problematic for highly concentrated formulations.
  • HDL detergents have been introduced as early as the 1970's, the known stable formulations rely on the use of phosphates, in particular sodium tripolyphosphate (STPP), to form structured liquids containing high levels of builders and surfactants.
  • STPP sodium tripolyphosphate
  • multilayered vesicles are formed that stabilize the formulation and prevent precipitation of the anionic surfactants by the builder components. These structures are stable and can be characterized by microscopic examination under polarized light and conductivity measurements.
  • STPP was particularly suited to formation of vesicles with sodium alkylbenzene sulfonate (sodium LAS).
  • STPP was well established as a builder in detergent powders and acts as a chelating agent, inhibits soil redeposition during the wash and boosts overall detergency.
  • the result of the use of STPP was the development of high performance and low cost HDL.
  • environmental concerns over the use of phosphates, including STPP, in laundry detergents have resulted in phosphate use being banned in some countries and a negative public image in most developed markets. While alternatives to STPP, such as zeolite, sodium citrate, and sodium carbonate, are known, these show poor performance relative to phosphate built HDL.
  • phosphate-free detergent compositions comprising a surfactant system and a builder system are disclosed in US 2012/088710 , US 2011240063 , EP 0 896 998 and US 2002/128167 .
  • phosphate-free, structured HDL detergents that have comparable performance as the previously used phosphate-based formulations. Accordingly, it is an object of the present invention to meet this need by providing an aqueous, phosphate-free, structured liquid detergent composition, in particular a HDL detergent that exhibits the desired performance.
  • this object can be met by using a composition that comprises a specific builder system, a surfactant system and water. It has been demonstrated that such a detergent shares a similar washing performance as the previously used STPP-containing compositions.
  • the present invention therefore relates to the use of an aqueous, structured liquid detergent composition comprising not more than 0.5 wt% of phosphate, 5.0 to 25.0 wt.-% of a surfactant system, 10.0 to 30.0 wt.-% of a builder system and 35.0 to 85.0 wt.-% water, wherein the builder system comprises
  • the invention relates to methods for cleaning textiles, wherein a washing liquor containing the liquid detergent composition of the present invention contacts the textile in at least one method step.
  • the invention also encompasses the use of a composition comprising
  • At least one relates to one or more, i.e. 1, 2, 3, 4, 5, 6, 7, 8, 9, or more. If used in combination with a compound, the term does not relate to the absolute number of molecules but rather to the number of different types of said compound. "At least one inorganic builder” thus means that at least one type but that also 2 or more different inorganic builder types can be present.
  • viscosities referred to herein are viscosities measured at 20°C by a Brookfield LVT, Spindle No. 3 at 12 rpm.
  • Free of means that the referenced composition does not contain more than 0.5 wt.%, preferably no more than 0.1 wt.%, more preferably no more than 0.05 wt.% of said component relative to the total weight of the composition. Most preferably, said component is not contained at all.
  • the detergent compositions of the present invention can be used as detergents for textiles, carpets or natural fibers.
  • the detergents disclosed herein are heavy duty liquid (HDL) detergents.
  • the present invention is based on the inventors' surprising finding, that by use of the disclosed builder system structured liquid detergent compositions may be formed that have the desired washing performance.
  • Washing performance relates to the removal of stains, in particular stains sensitive to surfactants.
  • the removal can be evaluated by measuring a brightening of the stain either instrumentally or by visual inspection.
  • Structured liquids are widely used in the field of detergents. They can either be internally structured by one or more of the primary ingredients, such as the surfactants, and/or by using secondary additives, such as certain polymers and/or silicates. Structuring is used to endow the composition with properties such as a turbid appearance or certain flow properties. Such structured liquids may also contain suspended solids. While structured liquids provide more formulation flexibility compared to isotropic liquids, they often suffer from stability and viscosity problems. The presently disclosed formulations, however, provide for compositions that have the desired viscosities while at the same time showing good stability.
  • the liquid detergent compositions of the invention are internally structured in that the surfactant system leads to formation of multilayered vesicles.
  • Structured as used herein, therefore means that the compositions are preferably internally structured by formation of multilayered vesicles.
  • Multilayered vesicles preferably relates to essentially spherical vesicles that have a multilayered, typically double-layered, shell formed of molecules comprising hydrophobic moieties, with said hydrophobic moieties arranged such that they face each other while the more hydrophilic parts of the molecules face outwards. Said shell can form a vesicle lumen.
  • compositions of the invention comprise a builder system.
  • the builder system is a phosphate-free builder system, as the composition is free of phosphates.
  • the composition comprises phosphonates. Accordingly, the term "phosphate-free", as used herein does not include phosphonates.
  • the phosphonates included in the builder system are preferably phosphonates based on hydroxyl alkanes, amino alkanes or amino acids, such as 1-hydroxyethane-1,1-diphosphonate (HEDP), ethylenediamine tetramethylene phosphonate (EDTMP), diethylenetriamine pentamethylene phosphonate (DTPMP), and lysine tetramethylene phosphonate (LTMP).
  • HEDP 1-hydroxyethane-1,1-diphosphonate
  • ETMP ethylenediamine tetramethylene phosphonate
  • DTPMP diethylenetriamine pentamethylene phosphonate
  • LTMP lysine tetramethylene phosphonate
  • Preferred are phosphonates that are readily water-soluble, in particular lysine tetramethylene phosphonate.
  • Water-soluble as used herein, relates to a solubility in water at 20°C of at least 1 g/L, preferably at least 10 g /L.
  • Phosphonates are used in amounts of 0.5 to 5.0 wt.%, preferably 2.0 to 3.0 wt.%.
  • Suitable inorganic builders include, without limitation, silicates, aluminosilicates (particularly zeolite), and carbonates, with water-soluble inorganic builders and in particular carbonates being preferred.
  • Suitable carbonates include alkali metal carbonates, hydrogen carbonates and sesquicarbonates, with alkali metal carbonates, in particular sodium carbonate being preferred.
  • inorganic builders in particular water-soluble inorganic builders, preferably carbonates, are used in amounts of up to 8 wt.%, preferably up to 5 wt.% relative to the total weight of the composition.
  • carbonate preferably sodium carbonate, is used in amounts of 1.0 to 8.0 wt.%, preferably 3.0 to 5.0 wt.%.
  • composition of the present invention comprises citric acid or citrate.
  • citric acid/citrate are contained in the compositions of the invention in amounts of 3.0 to 15.0 wt.%, preferably 6.0 to 10.0 wt.%.
  • aminocarboxylates are selected from the group consisting of L-glutamic acid N,N-diacetic acid (GLDA), methyl glycine diacetic acid (MGDA), imino disuccinic acid (IDS), ethylenediamine N,N'-disuccinic acid (EDDS), diethylenetriamine pentaacetic acid (DTPA), beta-alanine N,N-diacetic acid, hydroxyethylenediamine triacetic acid (HEDTA), and salts, preferably alkali metal salts thereof as well as combinations of any one of more of the afore-mentioned. Particularly preferred is GLDA tetrasodium salt.
  • the aminocarboxylates are preferably used in amounts of 2.0 to 10.0 wt.%, preferably 3.0 to 5.0 wt.% relative to the total weight of the composition.
  • the fifth builder component are acrylate-containing water-soluble polymers, such as alkali metal salts of polyacrylic acid or polymethacrylic acid, for example those having a molecular weight M w in the range of 600 to 750,000 g / mol, as determined by gel permeation chromatography (GPC) according to DIN 55672-1:2007-08 with THF as an eluent.
  • Preferred polymers are polyacrylates with a molecular weight M w of 1,000 to 15,000 g / mol, more preferred, due to their solubility, are short-chain polyacrylates with a molecular weight M w of 1,000 to 10,000 g / mol, most preferred from 1,000 to 5,000 g / mol.
  • copolymers of acrylates in particular those of acrylic acid and methacrylic acid, and acrylic acid or methacrylic acid and maleic acid.
  • such copolymers can also contain monomers of allyl sulfonic acids, such as allyloxybenzene sulfonic acid and methallyl sulfonic acid.
  • Preferred acrylates for use in the present invention are alkali metal salts of polymers of acrylic acid, preferably the sodium salts, in particular those with molecular weights in the range of 1,000 to 10,000 g / mol or 1,000 to 5,000 g / mol.
  • Suitable acrylates are commercially available, for example under the tradename Acusol® from Dow Chemical, preferred is, for example, Acusol® 420N.
  • the builder system comprises relative to the total weight of the detergent composition:
  • organic builders include polyacetals, dextrins and others. It is however preferred that the compositions are free of these other types of organic builders.
  • the builder system is comprised in the compositions in an amount of 10.0 to 30.0 wt.%, preferably 15.0 to 25.0 wt.%.
  • the detergent compositions of the invention further comprise a surfactant system.
  • Said surfactant system preferably comprises at least one alkyl ether sulfate.
  • Preferred alkyl ether sulfates are those of formula (I) R 1 -O-(AO) n -SO 3 - X + (I).
  • R 1 represents a linear or branched, substituted or unsubstituted alkyl group, preferably a linear, unsubstituted alkyl group, more preferably a fatty alcohol moiety.
  • R 1 moieties are selected from the group consisting of decyl, undecyl, dodecyl, tridecyl, tetradecyl, pentadecyl, hexadecyl, heptadecyl, octadecyl, nonadecyl, eicosyl moieties and mixtures thereof, wherein those groups with an even number of carbon atoms are preferred.
  • R 1 moieties are derived from C 10 -C 18 fatty alcohols, such as those derived from coconut oil alcohols, tallow fatty alcohols, lauryl, myristyl, cetyl or stearyl alcohol or from C 10 -C 20 oxoalcohols.
  • AO represents an ethyleneoxide (EO) or propyleneoxide (PO) group, preferably an ethyleneoxide group.
  • the index n represents an integer from 1 to 50, preferably from 1 to 20 and more preferably from 1 to 10. Particularly preferably, n is 1, 2, 3, 4, 5, 6, 7 or 8.
  • X represents a monovalent cation or the n-th part of an n-valent cation, preferred are alkali metal cations, specifically Na + and K + , most preferably Na + . Further cations X + may be selected from NH 4 + , 1 ⁇ 2 Zn 2+ , 1 ⁇ 2 Mg 2+ , 1 ⁇ 2Ca 2+ , 1 ⁇ 2 Mn 2+ , and combinations thereof.
  • Particularly preferred lauryl ether sulfate sodium salt with 2 EO, as it is particularly advantageous for achieving the desired viscosity ranges.
  • the level of ethoxylation is an average value and can, for a specific compound, be an integer or fractional number.
  • the alkyl ether sulfate is preferably contained in the compositions of the invention in an amount of 2.0 to 8.0 wt.% relative to the total weight of the composition, preferably 3.0 to 7.0 wt.%.
  • the surfactant system comprises at least one alkyl benzene sulfonate.
  • Said alkyl benzene sulfonate may be present alternatively to the above alkyl ether sulfate or, preferably, in addition to it.
  • Exemplary alkyl benzene sulfonates include, but are not limited to linear and branched alkyl benzene sulfonates, preferably linear alkyl benzene sulfonates.
  • Exemplary compounds are those of formula (III) wherein R' and R" are independently H or alkyl and combined comprise 9 to 19, preferably 9 to 15 and more preferably 9 to 13 carbon atoms. Particularly preferred are dodecyl and tridecyl benzene sulfonates, in particular the sodium salts thereof.
  • Preferred contents of the alkyl benzene sulfonates range from 3.0 to 22.0 wt.%, preferably 10.0 to 15.0 wt.%, relative to the total weight of the composition.
  • compositions of the invention may further comprise one or more nonionic surfactants.
  • Preferred nonionic surfactants are those of formula (IV) R 2 -O-(AO) m -H (IV), wherein R 2 represents a linear or branched substituted or unsubstituted alkyl moiety, AO represents an ethylene oxide (EO) or propylene oxide (PO) group and m is an integer from 1 to 50.
  • R 2 preferably represents a linear or branched, substituted or unsubstited alkyl group, preferably a linear, unsubstituted alkyl group, particularly preferred a fatty alcohol group.
  • Preferred groups are R 2 are selected from decyl, undecyl, dodecyl, tridecyl, tetradecyl, pentadecyl, hexadecyl, heptadecyl, octadecyl, nonadecyl, eicosyl groups and combinations thereof, wherein those groups with an even number of carbon atoms are preferred.
  • R 2 groups derived from C 12 -C 18 fatty alcohols such as coconut oil alcohol, tallow oil alcohol, lauryl, myristyl, cetyl or stearyl alcohol or from C 10 -C 20 oxoalcohols.
  • AO represents an ethyleneoxide (EO) or propyleneoxide (PO) group, preferably an ethyleneoxide group.
  • the index m represents an integer from 1 to 50, preferably from 1 to 20 and more preferably from 1 to 6. Particularly preferably, m is 1, 2, 3, 4 or 5, most preferably 3-5, as higher degrees of ethoxylation may negatively influence viscosity and stability.
  • Such nonionic alkyl ethers may be contained in the formulation in amounts of 0.0 to 5.0 wt.%, preferably 2.0 to 3.0 wt.%.
  • the detergents may further include other nonionic surfactants, such as alkyl glucosides of the general formula RO(G) x , where R is a primary linear or 2-methyl-branched aliphatic radical containing 8 to 22 and preferably 12 to 18 carbon atoms and G stands for a glucose unit.
  • R is a primary linear or 2-methyl-branched aliphatic radical containing 8 to 22 and preferably 12 to 18 carbon atoms and G stands for a glucose unit.
  • the degree of oligomerization x which indicates the distribution of monoglucosides and oligoglucosides, is a number of 1 to 10 and preferably a number of 1.2 to 1.4. However, in preferred embodiments, the compositions do not include such alkyl glucosides.
  • the surfactant system comprises at least two anionic surfactants, namely at least one alkyl ether sulfate and preferably at least one alkyl benzene sulfonate, and optionally an alkyl ether.
  • compositions may comprise, for example, 5.0 to 25.0, preferably 13.0 to 20.0 wt.% of the surfactant system.
  • Said surfactant system may comprise or consist of anionic surfactants, preferably (1) 2.0 to 8.0 wt.%, preferably 3.0 to 7.0 wt.% C 10-16 alkyl ether sulfates with 1 to 7 EO, preferably C 12-14 fatty alcohol ether sulfates with 1-3 EO, more preferably lauryl ether sulfate with 2 EO; (2) 3.0 to 22.0, preferably 10.0 to 15.0 wt.%, of a linear alkyl benzene sulfonate, preferably dodecyl or tridecyl benzene sulfonate; and (3) 0.0 to 5.0 wt.%, preferably 2.0 to 3.0 wt.%, C 12-18 alkyl ethers with 1-6 EO, preferably C 12-14 alkyl ethers having 1-5 EO
  • the detergent compositions of the invention are aqueous liquid compositions and as such comprise significant quantities of water, typically 35.0 to 85.0 wt.%, preferably 50.0 to 70.0 wt.%.
  • the pH value of the detergents according to the invention is generally in the range of from pH 9 to 12, preferably in the range from 10.0 to 11.0. Relatively high pH values, for example above 9, may be adjusted by the use of small quantities of sodium hydroxide or alkaline salts, such as sodium carbonate.
  • the liquid detergents are typically opaque, are flowable, and may be poured under the sole effect of gravity without any need for other shear forces to be applied. Their viscosity is generally greater than 1,000 mPas (Brookfield viscosimeter, spindle 3, 12 rpm, 20° C), namely in the range of between 1,000 and 10,000 mPas, preferably between 2,000 and 6,000 mPas.
  • compositions may further comprises stabilizers and/or rheology modifiers (thickeners), preferably both.
  • stabilizers and/or rheology modifiers are typically polymers, such as polymers based on acrylates or methacrylates.
  • suitable acrylate polymers comprise, but are not limited to, polymers of the Acusol® series (Dow Chemicals, Midland, USA), Alcosperse® series, Aquatreat® series (both Akzo Nobel, Amsterdam, The Netherlands), Good-rite® series (Emerald Performance Materials, Cuyahoga Falls, USA), Junlon® series, Jurymer® series, Rheogic® series, Aron® series (all Toagosei Co., Ltd., Tokyo, Japan), Glascol® series (BASF, Ludwigshafen, Germany), Aqualic® series (Nippon Shokubai Co., Ltd., Osaka, Japan), Carbopol® series and Carboset® series (both The Lubrizol Corporation, Wickliffe, USA).
  • Alcosperse® 325 (Akzo nobel), as a stabilizer
  • Acusol® 810 (Dow Chemical), as a thickener. These components are typically used in amounts of up to 1 wt.%, typically 0,1 to 0.5 wt.%.
  • the detergents may commonly contain at least one, preferably two or more other substances selected from the group consisting of soaps, pH adjusting agents, perfumes, fluorescing agents (optical brighteners), dyes, colorants, antimicrobial active substances, germicides, fungicides, antioxidants, preservatives, and softening compounds.
  • ingredients include silicone oils, anti-redeposition agents, anti-greying agents, shrinkage preventers, wrinkle protection agents, dye transfer inhibitors, corrosion inhibitors, antistatic agents, bittering agents, ironing adjuvants, proofing and impregnation agents, swelling and anti-slip agents, complexing agents and UV absorbers.
  • bleaching agents may be bleaching agents, bleach activators, bleach catalysts, and enzymes, however, in various embodiments, the compositions are free of those.
  • the detergent compositions further comprise relative to their total weight 0.25 to 15 wt.%, preferably 0.5 to 12.5 wt.%, preferably 2.0 to 6.0 wt.% soaps.
  • ingredients that are commonly used include colorants, perfumes and optical brighteners, as well as pH adjusting agents. All of these ingredients are well-known in the art and readily available.
  • the present invention further relates to methods for cleaning textiles, wherein a washing liquor containing the liquid detergent composition of the present invention contacts the textile in at least one method step.
  • the methods are preferably carried out in an automatic washing machine.
  • Methods for cleaning of textiles are generally characterized by the fact that in several different process steps various cleaning-active substances are applied to the textiles and after the contact time said cleaning-active substances are washed off, or that the textiles are treated in any other way with a detergent or a solution of said substance.
  • Also encompassed by the present invention is the use of the builder compositions disclosed herein for providing builder properties to aqueous, phosphate-free, structured liquid detergent compositions.
  • Washed swatches are read using a Hunter Lab Reflectometer thereby the Lightness (L*) is recorded.
  • the resultant L* value for washed stains can be compared to estimate wash performance. Measurements are in triplicate and student t-test is applied at a 95% confidence interval. For individual stains the following criteria is applied:
  • the criteria of +/-1 can be applied for top load wash performance.
  • a snap-shot of overall performance can be made by comparing the total L* score for all 13 technical stains and applying the following criteria: Top load: >5L* is statistically better and ⁇ -5L* is statistically worse.
  • L* scores for individual stains must be evaluated to obtain an accurate estimation of performance.
  • Example 1 Sodium carbonate built HDL
  • Example L is an efficient replacement for the phosphate builder. It does have a higher surfactant dose per wash but the builder dose per wash is significantly lower.
  • Examples M and N show a very significant performance effect due to citrate and carbonate while O, P and Q show smaller but still significant effects due to Phosphonate, Polyacrylate and GLDA.
  • Formulations are summarized in Table 6, which shows that the grams per wash of each raw material are kept constant but the percentage in the formula is adjusted to achieve the required dose.
  • Table 6 Prototype penta-built HDL formulation Ingredient % m/m Deionised Water QS Sodium C13 LAS 9.89% Sodium laureth-2 sulfate 2.93% Sodium Carbonate 3.20% Trisodium Citrate 6.41% Tetrasodium GLDA 3.20% Lysine tetramethylene phosphonate 1.92% Polyacrylate builder 1.28% Alcosperse 325 0.26% ACUSOL 810 A 0.12% Formula "% m/m" is the concentration of each raw material based on 100% active ingredient.

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  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
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Claims (9)

  1. Verwendung einer wässrigen, strukturierten Flüssigwaschmittelzusammensetzung, umfassend nicht mehr als 0,5 Gew.-% Phosphat, 5,0 bis 25,0 Gew.-% eines Tensidsystems, 10,0 bis 30,0 Gew.-% eines Buildersystems und 35,0 bis 85,0 Gew.-% Wasser, wobei das Buildersystem umfasst
    (A) mindestens einen anorganischen Builder, bevorzugt ein Carbonat, weiter bevorzugt Natriumcarbonat;
    (B) Citronensäure oder Citrat;
    (C) mindestens ein Aminocarboxylat, das bevorzugt aus der Gruppe ausgewählt ist, die aus L-Glutaminsäure-N,N-Diessigsäure (GLDA), Methylglycindiessigsäure (MGDA), Iminodibernsteinsäure (IDS), Ethylendiamin-N,N'-Dibernsteinsäure (EDDS), Diethylentriaminpentaessigsäure (DTPA), Beta-Alanin-N,N-diessigsäure, Hydroxyethylendiamintriessigsäure (HEDTA) und Alkalimetallsalzen davon, weiter bevorzugt GLDA-Tetranatriumsalz besteht;
    (D) mindestens ein Phosphonat, bevorzugt Lysintetramethylenphosphonat (LTMP); und
    (E) mindestens ein acrylathaltiges wasserlösliches Polymer oder Säurederivat oder Salze davon, bevorzugt ein Natriumsalz eines Acrylsäurecopolymers als Waschmittel für Textilien.
  2. Verwendung nach Anspruch 1, wobei die Zusammensetzung relativ zu dem Gesamtgewicht der Zusammensetzung umfasst
    (a) 15,0 bis 25,0 Gew.-% des Buildersystems,
    (b) 13,0 bis 20,0 Gew.-% des Tensidsystems
    (c) 55,0 bis 70 Gew.-% Wasser.
  3. Verwendung nach Anspruch 1 oder 2, wobei das Buildersystem relativ zu dem Gesamtgewicht der Waschmittelzusammensetzung umfasst
    (a1) 1,0 bis 8,0 Gew.-%, bevorzugt 3,0 bis 5,0 Gew.-% des mindestens einen anorganischen Builders, bevorzugt ein Carbonat, weiter bevorzugt Natriumcarbonat;
    (a2) 3,0 bis 15,0 Gew.-%, bevorzugt 6,0 bis 10,0 Gew.-% Citronensäure oder Citrat, weiter bevorzugt Natriumcitrat;
    (a3) 2,0 bis 10,0 Gew.-%, bevorzugt 3,0 bis 5,0 Gew.-% des mindestens einen Aminocarboxylat, das bevorzugt aus der Gruppe ausgewählt ist, die aus L-Glutaminsäure-N,N-Diessigsäure (GLDA), Methylglycindiessigsäure (MGDA), Iminodibernsteinsäure (IDS), Ethylendiamin-N,N'-Dibernsteinsäure (EDDS), Diethylentriaminpentaessigsäure (DTPA), Beta-Alanin-N,N-diessigsäure, Hydroxyethylendiamintriessigsäure (HEDTA) und Alkalimetallsalzen davon, weiter bevorzugt GLDA-Tetranatriumsalz besteht;
    (a4) 0,5 bis 5,0 Gew.-%, bevorzugt 2,0 bis 3,0 Gew.-% des mindestens einen Phosphonats, bevorzugt Lysintetramethylenphosphonat (LTMP); und
    (a5) 0,5 bis 5,0 Gew.-%, bevorzugt 1,0 bis 2,0 Gew.-% des mindestens einen acrylathaltigen wasserlöslichen Polymers oder Säurederivats oder Salzen davon, bevorzugt ein Natriumsalz eines Acrylsäure-Copolymers.
  4. Verwendung nach einem der Ansprüche 1 bis 3, wobei das Tensidsystem mindestens ein, bevorzugt zwei anionische Tenside umfasst, die bevorzugt aus der Gruppe ausgewählt sind, die aus Alkylethersulfaten und linearen Alkylbenzolsulfonaten besteht.
  5. Verwendung nach Anspruch 4, wobei
    (1) das mindestens eine Alkylethersulfat C10-16-Alkylethersulfate mit 2 bis 7 EO, bevorzugt Natriumlaurylethersulfat mit 2 EO umfasst; und/oder
    (2) das mindestens eine lineare Alkylbenzolsulfonat (LAS) lineare C9-13-Alkylbenzolsulfonate, bevorzugt Tridecylbenzolsulfonatnatriumsalz oder Dodecylbenzolsulfonatnatriumsalz umfasst; und/oder
    (3) das Tensidsystem ferner ein nichtionisches Tensid umfasst.
  6. Verwendung nach einem der Ansprüche 1 bis 5, wobei das Tensidsystem relativ zu dem Gesamtgewicht der Waschmittelzusammensetzung umfasst:
    (1) 2,0 bis 8,0 Gew.-%, bevorzugt 3,0 bis 7,0 Gew.-% C10-16-Alkylethersulfate mit 1 bis 7 EO, bevorzugt C12-14-Fettalkoholethersulfate mit 1-3 EO, weiter bevorzugt Laurylethersulfat mit 2 EO;
    (2) 3,0 bis 22,0, bevorzugt 10,0 bis 15,0 Gew.-%, weiter bevorzugt 10,0 bis 15,0 Gew.-% eines linearen Alkylbenzolsulfonats, bevorzugt Dodecyl- oder Tridecylbenzolsulfonat; und
    (3) 0,0 bis 10 Gew.-%, bevorzugt 2,0 bis 3,0 Gew.-%, C12-18-Alkylether mit 1-6 EO, bevorzugt C12-14-Alkylether mit 1-5 EO, am meisten bevorzugt Laurylether mit 5 EO.
  7. Verwendung nach einem der Ansprüche 1 bis 6, wobei die Waschmittelzusammensetzung ferner mindestens ein polymeres Verdickungsmittel und/oder mindestens einen polymeren Stabilisator umfasst.
  8. Verwendung nach einem der Ansprüche 1 bis 7, wobei die Waschmittelzusammensetzung mindestens einen, bevorzugt zwei oder mehr Stoffe umfasst, die aus der Gruppe ausgewählt sind, die aus Seifen, pH-Wert einstellenden Mitteln, Duftstoffen, fluoreszierenden Mitteln, Farbstoffen, Farbmitteln, antimikrobiellen Stoffen, Desinfektionsmitteln, Fungiziden, Antioxidantien, Konservierungsmitteln und Weichmacherverbindungen besteht.
  9. Verfahren zum Reinigen von Textilien, wobei eine Waschflotte, die die Waschmittelzusammensetzung nach einem der Ansprüche 1 bis 8 enthält, das Textil in mindestens einem Verfahrensschritt berührt.
EP16829240.7A 2015-12-18 2016-12-14 Penta-gefertigte flüssige waschmittelzusammensetzung Active EP3390607B1 (de)

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CA3146010C (en) * 2019-07-12 2024-06-04 Ecolab Usa Inc. Reduced mist alkaline cleaner via the use of alkali soluble emulsion polymers
AU2020201043A1 (en) * 2019-10-18 2021-05-06 Church & Dwight Co., Inc. Laundry detergent composition
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EP4256020A1 (de) * 2020-12-07 2023-10-11 Unilever IP Holdings B.V. Waschmittelzusammensetzungen
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