WO2016008765A1 - Liquid detergent compositions and their manufacture - Google Patents
Liquid detergent compositions and their manufacture Download PDFInfo
- Publication number
- WO2016008765A1 WO2016008765A1 PCT/EP2015/065428 EP2015065428W WO2016008765A1 WO 2016008765 A1 WO2016008765 A1 WO 2016008765A1 EP 2015065428 W EP2015065428 W EP 2015065428W WO 2016008765 A1 WO2016008765 A1 WO 2016008765A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- liquid detergent
- detergent composition
- range
- composition according
- laundry
- Prior art date
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- 239000000203 mixture Substances 0.000 title claims abstract description 90
- 239000003599 detergent Substances 0.000 title claims abstract description 84
- 239000007788 liquid Substances 0.000 title claims abstract description 78
- 238000004519 manufacturing process Methods 0.000 title description 3
- -1 alkali metal salts Chemical class 0.000 claims abstract description 28
- 229910052783 alkali metal Inorganic materials 0.000 claims abstract description 24
- 239000002738 chelating agent Substances 0.000 claims abstract description 18
- PDIZYYQQWUOPPK-UHFFFAOYSA-N acetic acid;2-(methylamino)acetic acid Chemical class CC(O)=O.CC(O)=O.CNCC(O)=O PDIZYYQQWUOPPK-UHFFFAOYSA-N 0.000 claims abstract description 17
- 239000003945 anionic surfactant Substances 0.000 claims abstract description 14
- WHUUTDBJXJRKMK-UHFFFAOYSA-N Glutamic acid Chemical class OC(=O)C(N)CCC(O)=O WHUUTDBJXJRKMK-UHFFFAOYSA-N 0.000 claims abstract description 9
- 235000013922 glutamic acid Nutrition 0.000 claims abstract description 9
- 239000004220 glutamic acid Chemical class 0.000 claims abstract description 9
- 150000001340 alkali metals Chemical class 0.000 claims abstract description 8
- 239000002736 nonionic surfactant Substances 0.000 claims abstract description 7
- IAYPIBMASNFSPL-UHFFFAOYSA-N Ethylene oxide Chemical compound C1CO1 IAYPIBMASNFSPL-UHFFFAOYSA-N 0.000 claims abstract description 5
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- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 claims abstract description 4
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- 238000000034 method Methods 0.000 claims description 14
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- 239000003795 chemical substances by application Substances 0.000 description 1
- VDQQXEISLMTGAB-UHFFFAOYSA-N chloramine T Chemical compound [Na+].CC1=CC=C(S(=O)(=O)[N-]Cl)C=C1 VDQQXEISLMTGAB-UHFFFAOYSA-N 0.000 description 1
- DHNRXBZYEKSXIM-UHFFFAOYSA-N chloromethylisothiazolinone Chemical compound CN1SC(Cl)=CC1=O DHNRXBZYEKSXIM-UHFFFAOYSA-N 0.000 description 1
- 238000004587 chromatography analysis Methods 0.000 description 1
- 239000003240 coconut oil Substances 0.000 description 1
- 235000019864 coconut oil Nutrition 0.000 description 1
- 239000008139 complexing agent Substances 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 229940097362 cyclodextrins Drugs 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 235000019425 dextrin Nutrition 0.000 description 1
- MTHSVFCYNBDYFN-UHFFFAOYSA-N diethylene glycol Chemical compound OCCOCCO MTHSVFCYNBDYFN-UHFFFAOYSA-N 0.000 description 1
- 150000004683 dihydrates Chemical class 0.000 description 1
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 description 1
- FPAYXBWMYIMERV-UHFFFAOYSA-L disodium;5-methyl-2-[[4-(4-methyl-2-sulfonatoanilino)-9,10-dioxoanthracen-1-yl]amino]benzenesulfonate Chemical compound [Na+].[Na+].[O-]S(=O)(=O)C1=CC(C)=CC=C1NC(C=1C(=O)C2=CC=CC=C2C(=O)C=11)=CC=C1NC1=CC=C(C)C=C1S([O-])(=O)=O FPAYXBWMYIMERV-UHFFFAOYSA-L 0.000 description 1
- VTIIJXUACCWYHX-UHFFFAOYSA-L disodium;carboxylatooxy carbonate Chemical compound [Na+].[Na+].[O-]C(=O)OOC([O-])=O VTIIJXUACCWYHX-UHFFFAOYSA-L 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- YRIUSKIDOIARQF-UHFFFAOYSA-N dodecyl benzenesulfonate Chemical compound CCCCCCCCCCCCOS(=O)(=O)C1=CC=CC=C1 YRIUSKIDOIARQF-UHFFFAOYSA-N 0.000 description 1
- DPUOLQHDNGRHBS-KTKRTIGZSA-N erucic acid Chemical compound CCCCCCCC\C=C/CCCCCCCCCCCC(O)=O DPUOLQHDNGRHBS-KTKRTIGZSA-N 0.000 description 1
- BEFDCLMNVWHSGT-UHFFFAOYSA-N ethenylcyclopentane Chemical compound C=CC1CCCC1 BEFDCLMNVWHSGT-UHFFFAOYSA-N 0.000 description 1
- 108010093305 exopolygalacturonase Proteins 0.000 description 1
- GNBHRKFJIUUOQI-UHFFFAOYSA-N fluorescein Chemical compound O1C(=O)C2=CC=CC=C2C21C1=CC=C(O)C=C1OC1=CC(O)=CC=C21 GNBHRKFJIUUOQI-UHFFFAOYSA-N 0.000 description 1
- 239000001530 fumaric acid Substances 0.000 description 1
- 239000008273 gelatin Substances 0.000 description 1
- 229920000159 gelatin Polymers 0.000 description 1
- 235000019322 gelatine Nutrition 0.000 description 1
- 235000011852 gelatine desserts Nutrition 0.000 description 1
- 108010002430 hemicellulase Proteins 0.000 description 1
- 229940051250 hexylene glycol Drugs 0.000 description 1
- 235000019447 hydroxyethyl cellulose Nutrition 0.000 description 1
- 239000001863 hydroxypropyl cellulose Substances 0.000 description 1
- 235000010977 hydroxypropyl cellulose Nutrition 0.000 description 1
- 239000003112 inhibitor Substances 0.000 description 1
- 238000004900 laundering Methods 0.000 description 1
- SDQFDHOLCGWZPU-UHFFFAOYSA-N lilial Chemical compound O=CC(C)CC1=CC=C(C(C)(C)C)C=C1 SDQFDHOLCGWZPU-UHFFFAOYSA-N 0.000 description 1
- 235000010420 locust bean gum Nutrition 0.000 description 1
- 239000000711 locust bean gum Substances 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- YZQBYALVHAANGI-UHFFFAOYSA-N magnesium;dihypochlorite Chemical compound [Mg+2].Cl[O-].Cl[O-] YZQBYALVHAANGI-UHFFFAOYSA-N 0.000 description 1
- VZCYOOQTPOCHFL-UPHRSURJSA-N maleic acid Chemical compound OC(=O)\C=C/C(O)=O VZCYOOQTPOCHFL-UPHRSURJSA-N 0.000 description 1
- 239000011976 maleic acid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 125000000325 methylidene group Chemical group [H]C([H])=* 0.000 description 1
- BEGLCMHJXHIJLR-UHFFFAOYSA-N methylisothiazolinone Chemical compound CN1SC=CC1=O BEGLCMHJXHIJLR-UHFFFAOYSA-N 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- WQEPLUUGTLDZJY-UHFFFAOYSA-N n-Pentadecanoic acid Natural products CCCCCCCCCCCCCCC(O)=O WQEPLUUGTLDZJY-UHFFFAOYSA-N 0.000 description 1
- JMXROTHPANUTOJ-UHFFFAOYSA-H naphthol green b Chemical compound [Na+].[Na+].[Na+].[Fe+3].C1=C(S([O-])(=O)=O)C=CC2=C(N=O)C([O-])=CC=C21.C1=C(S([O-])(=O)=O)C=CC2=C(N=O)C([O-])=CC=C21.C1=C(S([O-])(=O)=O)C=CC2=C(N=O)C([O-])=CC=C21 JMXROTHPANUTOJ-UHFFFAOYSA-H 0.000 description 1
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 description 1
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 235000019198 oils Nutrition 0.000 description 1
- 239000004006 olive oil Substances 0.000 description 1
- 235000008390 olive oil Nutrition 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 150000001451 organic peroxides Chemical class 0.000 description 1
- 150000004967 organic peroxy acids Chemical class 0.000 description 1
- 239000003346 palm kernel oil Substances 0.000 description 1
- 235000019865 palm kernel oil Nutrition 0.000 description 1
- 235000010987 pectin Nutrition 0.000 description 1
- 239000001814 pectin Substances 0.000 description 1
- 229920001277 pectin Polymers 0.000 description 1
- 229960001639 penicillamine Drugs 0.000 description 1
- JRKICGRDRMAZLK-UHFFFAOYSA-L persulfate group Chemical group S(=O)(=O)([O-])OOS(=O)(=O)[O-] JRKICGRDRMAZLK-UHFFFAOYSA-L 0.000 description 1
- 229960005323 phenoxyethanol Drugs 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 238000000711 polarimetry Methods 0.000 description 1
- 230000010287 polarization Effects 0.000 description 1
- 229920005646 polycarboxylate Polymers 0.000 description 1
- 229920000193 polymethacrylate Polymers 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 229920000166 polytrimethylene carbonate Polymers 0.000 description 1
- 229920002451 polyvinyl alcohol Polymers 0.000 description 1
- 229960003975 potassium Drugs 0.000 description 1
- SATVIFGJTRRDQU-UHFFFAOYSA-N potassium hypochlorite Chemical compound [K+].Cl[O-] SATVIFGJTRRDQU-UHFFFAOYSA-N 0.000 description 1
- 229940096992 potassium oleate Drugs 0.000 description 1
- 229940114930 potassium stearate Drugs 0.000 description 1
- MLICVSDCCDDWMD-KVVVOXFISA-M potassium;(z)-octadec-9-enoate Chemical compound [K+].CCCCCCCC\C=C/CCCCCCCC([O-])=O MLICVSDCCDDWMD-KVVVOXFISA-M 0.000 description 1
- IFIDXBCRSWOUSB-UHFFFAOYSA-M potassium;1,5-dichloro-4,6-dioxo-1,3,5-triazin-2-olate Chemical compound [K+].ClN1C(=O)[N-]C(=O)N(Cl)C1=O IFIDXBCRSWOUSB-UHFFFAOYSA-M 0.000 description 1
- ANBFRLKBEIFNQU-UHFFFAOYSA-M potassium;octadecanoate Chemical compound [K+].CCCCCCCCCCCCCCCCCC([O-])=O ANBFRLKBEIFNQU-UHFFFAOYSA-M 0.000 description 1
- KXXXUIKPSVVSAW-UHFFFAOYSA-K pyranine Chemical compound [Na+].[Na+].[Na+].C1=C2C(O)=CC(S([O-])(=O)=O)=C(C=C3)C2=C2C3=C(S([O-])(=O)=O)C=C(S([O-])(=O)=O)C2=C1 KXXXUIKPSVVSAW-UHFFFAOYSA-K 0.000 description 1
- 235000012752 quinoline yellow Nutrition 0.000 description 1
- FZUOVNMHEAPVBW-UHFFFAOYSA-L quinoline yellow ws Chemical compound [Na+].[Na+].O=C1C2=CC=CC=C2C(=O)C1C1=NC2=C(S([O-])(=O)=O)C=C(S(=O)(=O)[O-])C=C2C=C1 FZUOVNMHEAPVBW-UHFFFAOYSA-L 0.000 description 1
- 239000011369 resultant mixture Substances 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical compound O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- MSFGZHUJTJBYFA-UHFFFAOYSA-M sodium dichloroisocyanurate Chemical compound [Na+].ClN1C(=O)[N-]C(=O)N(Cl)C1=O MSFGZHUJTJBYFA-UHFFFAOYSA-M 0.000 description 1
- SUKJFIGYRHOWBL-UHFFFAOYSA-N sodium hypochlorite Chemical compound [Na+].Cl[O-] SUKJFIGYRHOWBL-UHFFFAOYSA-N 0.000 description 1
- 229960001922 sodium perborate Drugs 0.000 description 1
- 229940045872 sodium percarbonate Drugs 0.000 description 1
- YKLJGMBLPUQQOI-UHFFFAOYSA-M sodium;oxidooxy(oxo)borane Chemical compound [Na+].[O-]OB=O YKLJGMBLPUQQOI-UHFFFAOYSA-M 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000004334 sorbic acid Substances 0.000 description 1
- 235000010199 sorbic acid Nutrition 0.000 description 1
- 229940075582 sorbic acid Drugs 0.000 description 1
- 239000008107 starch Substances 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
- 239000008117 stearic acid Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000003760 tallow Substances 0.000 description 1
- UJMBCXLDXJUMFB-GLCFPVLVSA-K tartrazine Chemical compound [Na+].[Na+].[Na+].[O-]C(=O)C1=NN(C=2C=CC(=CC=2)S([O-])(=O)=O)C(=O)C1\N=N\C1=CC=C(S([O-])(=O)=O)C=C1 UJMBCXLDXJUMFB-GLCFPVLVSA-K 0.000 description 1
- 235000012756 tartrazine Nutrition 0.000 description 1
- 239000004149 tartrazine Substances 0.000 description 1
- TUNFSRHWOTWDNC-HKGQFRNVSA-N tetradecanoic acid Chemical class CCCCCCCCCCCCC[14C](O)=O TUNFSRHWOTWDNC-HKGQFRNVSA-N 0.000 description 1
- 150000004685 tetrahydrates Chemical class 0.000 description 1
- 235000010487 tragacanth Nutrition 0.000 description 1
- 239000000196 tragacanth Substances 0.000 description 1
- 229940116362 tragacanth Drugs 0.000 description 1
- 229920003169 water-soluble polymer Polymers 0.000 description 1
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
- C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
- C11D1/66—Non-ionic compounds
- C11D1/83—Mixtures of non-ionic with anionic compounds
-
- 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
- C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
- C11D1/02—Anionic compounds
- C11D1/12—Sulfonic acids or sulfuric acid esters; Salts thereof
- C11D1/22—Sulfonic acids or sulfuric acid esters; Salts thereof derived from aromatic compounds
-
- 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
-
- 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
- C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
- C11D1/02—Anionic compounds
- C11D1/12—Sulfonic acids or sulfuric acid esters; Salts thereof
- C11D1/29—Sulfates of polyoxyalkylene ethers
-
- 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
- C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
- C11D1/66—Non-ionic compounds
- C11D1/72—Ethers of polyoxyalkylene glycols
-
- 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 is directed towards a liquid detergent composition
- a liquid detergent composition comprising (A) at least one chelating agent selected from alkali metal salts of methyl glycine diacetate and glutamic acid diacetate,
- (C) at least one non-ionic surfactant according to the general formula (II), the weight ratio of all chelating agent (A) to all anionic surfactant (B) being in the range of from 1 :1 to 1 :8, with the integers being defined as follows: n being a number in the range of from 10 to 18,
- n being a number in the range of from 10 to 18,
- M being selected from alkali metals
- AO being different or identical and selected from ethylene oxide, propylene oxide, and butyl- ene oxide, x being a number in the range of from 1 to 5,
- the present invention is directed towards a method for making liquid detergent compositions, and to the use of such liquid detergent compositions as or for making a liquid laundry care composition.
- Liquid laundry detergents have numerous benefits. The most common advantage over powder detergents is that they leave no residues on the clothes that may affect the appearance, in particular in the case of dark clothes. Such residues may also adversely affect membranes of clothes such as Gore-Tex®. Most of such residues found when using powder detergents mainly consist of bleaching agents and zeolites. For that reason, liquid laundry detergents are advantageously used for laundering colored clothes. Further advantages of liquid laundry detergents are that they are dispensed easily, and they readily dissolve in the washing liquor. With detergent powders, a common disadvantage is that they tend to caking when exposed to humidity. That disadvantage can be avoided when using liquid laundry detergents. The removal of stains from soiled laundry is often referred to as primary detergency.
- liquid laundry detergents show a reduced ability to remove stains from colored soilings such as, but not limited to red wine, tea, coffee, vegetables, and various fruit juices like berry juices.
- Adding a bleaching agent would improve the ability of liquid laundry detergents to remove bleachable stains but deteriorate the detergent in aspects other than the ones discussed before.
- many bleaching agents are incompatible with certain surfactants, and they may lead to deterioration or degradation of enzymes.
- liquid laundry detergent that has a good primary deter- gency.
- a liquid laundry detergent that has a good ability to remove bleachable stains such as red wine, tea, coffee, vegetables, and fruit juices.
- a process for manufacturing such liquid laundry detergents Accordingly, the liquid detergent compositions defined at the outset were found, hereinafter also referred to as inventive detergent compositions or inventive liquid detergent compositions or liquid detergent compositions according to the present invention.
- Inventive detergent compositions are liquid. This property refers to normal conditions (25°C, one atmosphere). They appear clear or lightly opaque to the naked eye, and they can be poured like water.
- gel-type liquid laundry detergents are a special embodiment of liquid laundry detergents. Gel-type liquid laundry detergents usually contain at least one viscosity modifier, and they contain little or no non-aqueous solvents. Gel-type liquid laundry detergents can be directly applied to stains in soiled laundry.
- liquid detergent compositions according to the present invention have a dynamic viscosity in the range of from 500 to 20,000 mPa-s, determined at 25°C according to Brookfield, for example spindle 3 at 20 rpm with a Brookfield viscosimeter LVT-II.
- liquid detergent compositions according to the present invention may have a water content in the range of from 50 to 98% by weight, preferably up to 95%. In one embodiment of the present invention, liquid detergent compositions according to the present invention may have a total solids content in the range of from 2 to 50% by weight, preferably 10 to 35% by weight.
- liquid detergent compositions according to the pre- sent invention may comprise solvents other than water, for example ethanol, n-propanol, iso- propanol, n-butanol, iso-butanol, sec.-butanol, ethylene glycol, propylene glycol, 1 ,3-propane diol, butane diol, glycerol, diglycol, propyl diglycol, butyl diglycol, hexylene glycol, ethylene gly- col methyl ether, ethylene glycol ethyl ether, ethylene glycol propyl ether, and phenoxyethanol, preferred are ethanol, isopropanol or propylene glycol.
- solvents other than water for example ethanol, n-propanol, iso- propanol, n-butanol, iso-butanol, sec.-butanol, ethylene glycol, propylene glycol, 1 ,3-propan
- liquid detergent compositions according to the pre- sent invention comprise 0.5 to 12 % by weight of organic solvent, referring to the total respective liquid detergent composition.
- the content of organic solvent may be in the range of from 8 to 25% by weight, referring to the total respective liquid detergent composition.
- Inventive liquid detergent compositions contain
- (A) at least one chelating agent selected from alkali metal salts of methyl glycine diacetate (MGDA) and glutamic acid diacetate (GLDA), hereinafter generally also being referred to as complexing agent (A).
- MGDA methyl glycine diacetate
- GLDA glutamic acid diacetate
- alkali metal salts of methylglycine diacetic acid are selected from lithium salts, potassium salts and preferably sodium salts of methylglycine diacetic acid.
- Methylglycine diacetic acid can be partially or preferably fully neutralized with the respective alkali.
- an average of from 2.7 to 3 COOH groups of MGDA is neutralized with alkali metal, preferably with sodium.
- chelating agent (A) is the trisodium salt of MGDA.
- alkali metal salts of glutamic acid diacetic acid are selected from lithium salts, potassium salts and preferably sodium salts of glutamic acid diacetic acid.
- Glutamic acid diacetic acid can be partially or preferably fully neutralized with the respective alkali.
- an average of from 3.5 to 4 COOH groups of MGDA is neutralized with alkali metal, preferably with sodium.
- chelating agent (A) is the tetrasodi- um salt of GLDA.
- alkali metal salts of MGDA are selected from those of general formula (III)
- alkali metal salts of GLDA are selected from those of general formula (IV)
- MGDA and its respective alkali metal salts can be selected from the racemic mixtures, the D- isomers and the L-isomers, and from mixtures of the D- and L-isomers other than the racemic mixtures.
- MGDA and its respective alkali metal salts are selected from the racemic mixture and from mixtures containing in the range of from 55 to 85 mole-% of the L-isomer, the balance being D-isomer.
- Particularly preferred are mixtures containing in the range of from 60 to 80 mole-% of the L-isomer, the balance being D-isomer.
- the distribution of L- and D-enantiomer can be determined by measuring the polarization (polar- imetry) or preferably by chromatography, for example by HPLC with a chiral column, for example with one or more cyclodextrins as immobilized phase. Preferred is determination of the ee by HPLC with an immobilized optically active ammonium salt such as D-penicillamine.
- GLDA and its respective alkali metal salts can be selected from the racemic mixtures, the D- isomers and the L-isomers, and from mixtures of the D- and L-isomers other than the racemic mixtures.
- GLDA and its respective alkali metal salts are selected from mixtures con- taining in the range of from 75 to 99 mole-% of the L-isomer, the balance being D-isomer.
- Particularly preferred are mixtures containing in the range of from 80 to 97.5 mole-% of the L- isomer, the balance being D-isomer.
- minor amounts of chelating agent (A) may bear a cation other than alkali metal. It is thus possible that minor amounts, such as 0.01 to 5 mol-% of total chelating agent (A) bear alkali earth metal cations such as Mg 2+ or Ca 2+ , or an Fe 2+ or Fe 3+ cation.
- chelating agent (A) is selected from the trisodium salt of methyl glycine diacetate and the tetrasodium salt of glutamic acid diacetate.
- inventive liquid detergent compositions may contain a mixture from the sodium salts of MGDA and GLDA.
- Inventive liquid detergent compositions contain at least one anionic surfactant according to the general formula (I)
- M being selected from alkali metals, preferably potassium and even more preferably sodium.
- n and x may be average numbers and therefore they are not necessarily whole numbers, while in individual molecules according to formula (I), both n and x denote whole numbers.
- Inventive liquid detergent compositions further contain
- (C) at least one non-ionic surfactant according to the general formula (II), hereinafter also being referred to as surfactant (C) or non-ionic surfactant (C), with the integers being defined as follows: m being a number in the range of from 10 to 18, preferably 16 to 18,
- M being selected from alkali metals, preferably potassium and even more preferably sodium,
- AO being different or identical and selected from ethylene oxide, propylene oxide, and butyl- ene oxide, especially ethylene oxide, CH2CH2O,
- y being different or identical and selected from numbers in the range of from 1 to 12, prefer- ably 5 to 10.
- m and y may be average numbers and therefore they are not necessarily whole numbers, while in individual molecules according to formula (II), both m and y denote whole numbers.
- the weight ratio of all chelating agent (A) to all anionic surfactant (B) is in the range of from 1 :1 to 1 :8, preferably from 1 :1.5 to 1 :4.
- inventive liquid detergent compositions have a pH value in the range of from 7 to 9.5, preferably 8 to 9.
- inventive liquid detergent compositions comprise (A) in the range of from 5 to 15 % by weight of chelating agent, preferably 6 to 12 % by
- inventive liquid detergent compositions are free from bleaching agents.
- Bleaching agents in the context of the present invention are organic peroxides, inorganic peroxides and chlorine bleaches.
- organic and inorganic peroxides are sodium perborate, anhydrous or for example as monohydrate or as tetrahydrate or so-called dihydrate, sodium percarbonate, anhydrous or, for example, as monohydrate, hydrogen peroxide, persulfates, organic peracids such as peroxylauric acid, peroxystearic acid, peroxy-a-naphthoic acid, 1 ,12-diperoxydodecanedioic acid, per- benzoic acid, peroxylauric acid, 1 ,9-diperoxyazelaic acid, diperoxyisophthalic acid, in each case as free acid or as alkali metal salt, in particular as sodium salt, also sulfonylperoxy acids and cationic peroxy acids, chlorine-containing bleaches are, for example, 1 ,3-dichloro-5,5-dimethyl- hydantoin, N-N-chlorosulfamide, chloramine T, chloramine B, sodium hypo
- Free from in the context of bleaching agents means less than 0.5% by weight, referring to the total solids content.
- inventive liquid detergent compositions contain at least one alkali metal salt, preferably at least one potassium salt of a fatty acid.
- alkali metal salt preferably at least one potassium salt of a fatty acid.
- examples are the sodium salts and especially the potassium salts of lauric acid, myristic acid, palmitic acid, stearic acid, (hydrogenated) erucic acid and behenic acid, and especially soap mixtures derived from natural fatty acids such as coconut oil fatty acid, palm kernel oil fatty acid, olive oil fatty acid or tallow fatty acid.
- Preferred examples are potassium coconut soap, potassium stearate, potassium oleate, potassium coconut soap with an average formula of n-C ⁇ HbsCOOK being even more preferred.
- the amount of potassium salt of fatty acid may be in the range of from 10 to 25 % by weight referring to the total solids content of said liquid detergent composition.
- inventive liquid detergent compositions comprise linear sodium dodecylbenzenesulphonate, for example a mixture from the sodium salts of linear 4-dodecylbenzenesulphonate and linear 5-dodecylbenzenesulphonate.
- the amount of linear sodium dodecylbenzenesulphonate may be in the range of from 10 to 40 % by weight referring to the total solids content of said liquid detergent composition.
- Inventive liquid detergent compositions are liquid laundry detergent compositions. They may comprise ingredients other than the aforementioned. Examples are fragrances, dyestuffs, bio- cides, preservatives, enzymes, hydrotropes, builders, viscosity modifiers, polymers, buffers, defoamers, and anti-corrosion additives. Examples of fragrances are benzyl salicylate, 2-(4-tert.-butylphenyl) 2-methylpropional, commercially available as Lilial®, and hexyl cinnamaldehyde.
- dyestuffs are Acid Blue 9, Acid Yellow 3, Acid Yellow 23, Acid Yellow 73, Pigment Yellow 101 , Acid Green 1 , Solvent Green 7, and Acid Green 25.
- Inventive liquid detergent compositions may contain one or more preservatives or biocides.
- Bio- cides and preservatives prevent alterations of inventive liquid detergent compositions due to attacks from microorganisms.
- biocides and preservatives are BTA (1 ,2,3- benzotriazole), benzalkonium chlorides, 1 ,2-benzisothiazolin-3-one ("BIT”), 2-methyl-2H- isothiazol-3-one (,, ⁇ ') and 5-chloro-2-methyl-2H-isothiazol-3-one diligentCIT"), benzoic acid, sorbic acid, iodopropynyl butylcarbamate (“IPBC”), dichlorodimethylhydantoine (“DCDMH”), bromo- chlorodimethylhydantoine (“BCDMH”), and dibromodimethylhydantoine (“DBDMH”).
- BTA 1,2,3- benzotriazole
- BIT ,2-benziso
- viscosity modifiers examples include agar-agar, carragene, tragacanth, gum arabic, alginates, pectins, hydroxyethyl cellulose, hydroxypropyl cellulose, starch, gelatin, locust bean gum, cross- linked poly(meth)acrylates, for example polyacrylic acid cross-linked with methylene bis- (meth)acrylamide, furthermore silicic acid, clay such as - but not limited to - montmorrilionite, zeolite, dextrin, and casein.
- cross- linked poly(meth)acrylates for example polyacrylic acid cross-linked with methylene bis- (meth)acrylamide, furthermore silicic acid, clay such as - but not limited to - montmorrilionite, zeolite, dextrin, and casein.
- Hydrotropes in the context with the present invention are compounds that facilitate the dissolution of compounds that exhibit limited solubility in water.
- examples of hydrotropes are organic solvents such as ethanol, isopropanol, ethylene glycol, 1 ,2-propylene glycol, and further organic solvents that are water-miscible under normal conditions without limitation.
- suitable hydrotropes are the sodium salts of toluene sulfonic acid, of xylene sulfonic acid, and of cumene sulfonic acid.
- useful enzymes are lipases, hydrolases, amylases, proteases, cellulases, hemi- cellulases, lipases, phospholipases, esterases, pectinases, lactases and peroxidases, and combinations of at least two of the foregoing types of the foregoing.
- Particularly useful enzymes are selected from are proteases, amylases, and cellulases.
- polymers are especially polyacrylic acid and its respective alkali metal salts, especially its sodium salt.
- a suitable polymer is in particular polyacrylic acid, preferably with an aver- age molecular weight M w in the range from 2,000 to 40,000 g/mol. preferably 2,000 to 10,000 g/mol, in particular 3,000 to 8,000 g/mol, each partially or fully neutralized with alkali, especially with sodium.
- copolymeric polycarboxylates in particular those of acrylic acid with methacrylic acid and of acrylic acid or methacrylic acid with maleic acid and/or fumaric acid.
- Polyacrylic acid and its respective alkali metal salts may serve as soil anti-redeposition agents.
- Further examples of polymers are polyvinylpyrrolidones (PVP). Polyvinylpyrrolidones may serve as dye transfer inhibitors.
- polymers are polyethylene terephthalates, polyoxyethylene terphthalates, and polyethylene terephthalates that are end-capped with one or two hydrophilic groups per molecule, hydrophilic groups being selected from ChbChbCI-b-SOsNa, CH 2 CH(CH2-S03Na)2, and CH 2 CH(CH 2 S02Na)CH2-S03Na.
- buffers are monoethanolamine and ⁇ , ⁇ , ⁇ -triethanolamine.
- defoamers are silicones.
- Inventive liquid detergent compositions are not only good in cleaning soiled laundry with respect to inorganic soil such as clay, or organic fatty soil such as oil.
- Inventive liquid detergent compo- sitions are very useful for removing non-bleachable stains such as, but not limited to stains from red wine, tea, coffee, vegetables, and various fruit juices like berry juices from laundry. They still do not leave residues on the clothes.
- liquid laundry detergent inventive liquid detergent compositions may be in bulk form or as unit doses, for example in the form of sachets or pouches.
- Suitable materials for pouches are water-soluble polymers such as polyvinyl alcohol.
- an inventive liquid detergent composition for cleaning laundry is the use of an inventive liquid detergent composition for cleaning laundry.
- an aspect of the present invention is the use of inventive liquid detergent compositions for cleaning laundry stained with at least one of red wine, tea, coffee, vegetables, or fruit juice.
- fruit juices are apple juice, blueberry juice and blackberry juice.
- Another aspect of the present invention is a process to clean laundry, hereinafter also referred to as inventive process.
- the inventive process is directed towards cleaning laundry stained with bleachable stains such as at least one of red wine, tea, coffee, vegetables, or fruit juice such as, but not limited to apple juice, blueberry juice or blackberry juice by applying at least one inventive liquid detergent composition.
- the inventive process can be performed in an automatic laundry cleaner or manually.
- Said inventive detergent composition is preferably diluted with water before applying it to the soiled laundry.
- the inventive process is characterized in that the respective inventive liquid detergent composition is being applied to soiled laundry at a temperature in the range of from 20 to 65°C.
- a further aspect of the present invention is a process for making inventive liquid detergent compositions, hereinafter also referred to as inventive method.
- inventive method comprises mixing chelating agent (A), surfactant (B) and surfactant (C), and, optionally, further ingredients as outlined above, with water in one or more steps.
- the present invention is further illustrated by working examples.
- the present invention is further illustrated by working examples.
- the wash performance of for- mulations F.1 , F.2 and F.3 was determined and compared to the formulation without MGDA
- a vessel was charged with 120 ml of water.
- Anionic surfactant 2 according to Table 1 and 1 ,2- propylene glycol - amount: 6 % by weight referring to the total solids content - were added and the resultant mixture was heated to 50-55°C under stirring.
- the pH value was adjusted to 3 to 4 with aqueous potassium hydroxide solution (50%) and potassium coconut soap was added.
- Chelating agent (A.1 ) was added to the mixture so obtained, and the pH value was adjusted to
- Anionic surfactant 2 sodium salt of linear dodecylbenzenesulphonate
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Abstract
The present invention is directed towards a liquid detergent composition comprising (A) at least one chelating agent selected from alkali metal salts of methyl glycine diacetate and glutamic acid diacetate, (B) at least one anionic surfactant according to the general formula (I) CnH2n+1-O(CH2CH2O)x-SO3M (I) (C)at least one non-ionic surfactant according to the general formula (II), CmH2m+1-O(AO)yH (II) the weight ratio of all chelating agent (A) to all anionic surfactant (B) being in the range of from 1:1 to 1:8, with the integers being defined as follows: n being a number in the range of from 10 to 18, m being a number in the range of from 10 to 18, M being selected from alkali metals, AO being different or identical and selected from ethylene oxide, propylene oxide, and butylene oxide, x being a number in the range of from 1 to 5, y being different or identical and selected from numbers in the range of from 1 to 12.
Description
Liquid detergent compositions and their manufacture
The present invention is directed towards a liquid detergent composition comprising (A) at least one chelating agent selected from alkali metal salts of methyl glycine diacetate and glutamic acid diacetate,
(B) at least one anionic surfactant according to the general formula (I) CnH2n+i-0(CH2CH20)x-S03M (I)
(C) at least one non-ionic surfactant according to the general formula (II),
the weight ratio of all chelating agent (A) to all anionic surfactant (B) being in the range of from 1 :1 to 1 :8, with the integers being defined as follows: n being a number in the range of from 10 to 18,
m being a number in the range of from 10 to 18,
M being selected from alkali metals,
AO being different or identical and selected from ethylene oxide, propylene oxide, and butyl- ene oxide, x being a number in the range of from 1 to 5,
y being different or identical and selected from numbers in the range of from 1 to 12. Furthermore, the present invention is directed towards a method for making liquid detergent compositions, and to the use of such liquid detergent compositions as or for making a liquid laundry care composition.
Liquid laundry detergents have numerous benefits. The most common advantage over powder detergents is that they leave no residues on the clothes that may affect the appearance, in particular in the case of dark clothes. Such residues may also adversely affect membranes of clothes such as Gore-Tex®. Most of such residues found when using powder detergents mainly consist of bleaching agents and zeolites. For that reason, liquid laundry detergents are advantageously used for laundering colored clothes. Further advantages of liquid laundry detergents are that they are dispensed easily, and they readily dissolve in the washing liquor. With detergent powders, a common disadvantage is that they tend to caking when exposed to humidity. That disadvantage can be avoided when using liquid laundry detergents.
The removal of stains from soiled laundry is often referred to as primary detergency. Many liquid laundry detergents show a reduced ability to remove stains from colored soilings such as, but not limited to red wine, tea, coffee, vegetables, and various fruit juices like berry juices. Adding a bleaching agent would improve the ability of liquid laundry detergents to remove bleachable stains but deteriorate the detergent in aspects other than the ones discussed before. In particular, many bleaching agents are incompatible with certain surfactants, and they may lead to deterioration or degradation of enzymes.
It is therefore an objective to provide a liquid laundry detergent that has a good primary deter- gency. In particular, it is an objective to provide a liquid laundry detergent that has a good ability to remove bleachable stains such as red wine, tea, coffee, vegetables, and fruit juices. It is also an objective of the present invention to provide a process for manufacturing such liquid laundry detergents. Accordingly, the liquid detergent compositions defined at the outset were found, hereinafter also referred to as inventive detergent compositions or inventive liquid detergent compositions or liquid detergent compositions according to the present invention.
Inventive detergent compositions are liquid. This property refers to normal conditions (25°C, one atmosphere). They appear clear or lightly opaque to the naked eye, and they can be poured like water. In the context of the present invention, gel-type liquid laundry detergents are a special embodiment of liquid laundry detergents. Gel-type liquid laundry detergents usually contain at least one viscosity modifier, and they contain little or no non-aqueous solvents. Gel-type liquid laundry detergents can be directly applied to stains in soiled laundry.
In one embodiment of the present invention, liquid detergent compositions according to the present invention have a dynamic viscosity in the range of from 500 to 20,000 mPa-s, determined at 25°C according to Brookfield, for example spindle 3 at 20 rpm with a Brookfield viscosimeter LVT-II.
In one embodiment of the present invention, liquid detergent compositions according to the present invention may have a water content in the range of from 50 to 98% by weight, preferably up to 95%. In one embodiment of the present invention, liquid detergent compositions according to the present invention may have a total solids content in the range of from 2 to 50% by weight, preferably 10 to 35% by weight.
In one embodiment of the present invention, liquid detergent compositions according to the pre- sent invention may comprise solvents other than water, for example ethanol, n-propanol, iso- propanol, n-butanol, iso-butanol, sec.-butanol, ethylene glycol, propylene glycol, 1 ,3-propane diol, butane diol, glycerol, diglycol, propyl diglycol, butyl diglycol, hexylene glycol, ethylene gly-
col methyl ether, ethylene glycol ethyl ether, ethylene glycol propyl ether, and phenoxyethanol, preferred are ethanol, isopropanol or propylene glycol.
In one embodiment of the present invention, liquid detergent compositions according to the pre- sent invention comprise 0.5 to 12 % by weight of organic solvent, referring to the total respective liquid detergent composition. In embodiments in which inventive liquid detergent composition is provided as unit dose, e.g., in form of a pouch, the content of organic solvent may be in the range of from 8 to 25% by weight, referring to the total respective liquid detergent composition.
Inventive liquid detergent compositions contain
(A) at least one chelating agent selected from alkali metal salts of methyl glycine diacetate (MGDA) and glutamic acid diacetate (GLDA), hereinafter generally also being referred to as complexing agent (A).
In the context of the present invention, alkali metal salts of methylglycine diacetic acid are selected from lithium salts, potassium salts and preferably sodium salts of methylglycine diacetic acid. Methylglycine diacetic acid can be partially or preferably fully neutralized with the respective alkali. In a preferred embodiment, an average of from 2.7 to 3 COOH groups of MGDA is neutralized with alkali metal, preferably with sodium. In a particularly preferred embodiment, chelating agent (A) is the trisodium salt of MGDA.
Likewise, alkali metal salts of glutamic acid diacetic acid are selected from lithium salts, potassium salts and preferably sodium salts of glutamic acid diacetic acid. Glutamic acid diacetic acid can be partially or preferably fully neutralized with the respective alkali. In a preferred embodiment, an average of from 3.5 to 4 COOH groups of MGDA is neutralized with alkali metal, preferably with sodium. In a particularly preferred embodiment, chelating agent (A) is the tetrasodi- um salt of GLDA. In one embodiment of the present invention, alkali metal salts of MGDA are selected from those of general formula (III)
[CH3-CH(COO)-N(CH2-COO)2]Na3-a-yKaHb (III) a being selected from 0.0 to 0.5, preferably up to 0.25, b being selected from 0.0 to 0.5, preferably up to 0.25.
In one embodiment of the present invention, alkali metal salts of GLDA are selected from those of general formula (IV)
[OOC-(CH2)2-CH(COO)-N(CH2-COO)2]Na4-a-yKaHb (IV)
a being selected from 0.0 to 0.5, preferably up to 0.25, b being selected from 0.0 to 0.5, preferably up to 0.25. MGDA and its respective alkali metal salts can be selected from the racemic mixtures, the D- isomers and the L-isomers, and from mixtures of the D- and L-isomers other than the racemic mixtures. Preferably, MGDA and its respective alkali metal salts are selected from the racemic mixture and from mixtures containing in the range of from 55 to 85 mole-% of the L-isomer, the balance being D-isomer. Particularly preferred are mixtures containing in the range of from 60 to 80 mole-% of the L-isomer, the balance being D-isomer.
The distribution of L- and D-enantiomer can be determined by measuring the polarization (polar- imetry) or preferably by chromatography, for example by HPLC with a chiral column, for example with one or more cyclodextrins as immobilized phase. Preferred is determination of the ee by HPLC with an immobilized optically active ammonium salt such as D-penicillamine.
GLDA and its respective alkali metal salts can be selected from the racemic mixtures, the D- isomers and the L-isomers, and from mixtures of the D- and L-isomers other than the racemic mixtures. Preferably, GLDA and its respective alkali metal salts are selected from mixtures con- taining in the range of from 75 to 99 mole-% of the L-isomer, the balance being D-isomer. Particularly preferred are mixtures containing in the range of from 80 to 97.5 mole-% of the L- isomer, the balance being D-isomer.
In any way, minor amounts of chelating agent (A) may bear a cation other than alkali metal. It is thus possible that minor amounts, such as 0.01 to 5 mol-% of total chelating agent (A) bear alkali earth metal cations such as Mg2+ or Ca2+, or an Fe2+ or Fe3+ cation.
In one embodiment of the present invention, chelating agent (A) is selected from the trisodium salt of methyl glycine diacetate and the tetrasodium salt of glutamic acid diacetate.
In a special embodiment, inventive liquid detergent compositions may contain a mixture from the sodium salts of MGDA and GLDA.
Inventive liquid detergent compositions contain at least one anionic surfactant according to the general formula (I)
CnH2n+1-0(CH2CH20)x-S03M (I) hereinafter also being referred to as surfactant (B) or anionic surfactant (B),
with the integers being defined as follows:
n being a number in the range of from 10 to 18, preferably 12 to 14, and even more preferably n = 12,
x being a number in the range of from 1 to 5, preferably 2 to 4 and even more preferably 3. M being selected from alkali metals, preferably potassium and even more preferably sodium.
In surfactant (B), the integers n and x may be average numbers and therefore they are not necessarily whole numbers, while in individual molecules according to formula (I), both n and x denote whole numbers. Inventive liquid detergent compositions further contain
(C) at least one non-ionic surfactant according to the general formula (II),
hereinafter also being referred to as surfactant (C) or non-ionic surfactant (C), with the integers being defined as follows: m being a number in the range of from 10 to 18, preferably 16 to 18,
M being selected from alkali metals, preferably potassium and even more preferably sodium,
AO being different or identical and selected from ethylene oxide, propylene oxide, and butyl- ene oxide, especially ethylene oxide, CH2CH2O,
y being different or identical and selected from numbers in the range of from 1 to 12, prefer- ably 5 to 10.
In surfactant (C), the integers m and y may be average numbers and therefore they are not necessarily whole numbers, while in individual molecules according to formula (II), both m and y denote whole numbers.
The weight ratio of all chelating agent (A) to all anionic surfactant (B) is in the range of from 1 :1 to 1 :8, preferably from 1 :1.5 to 1 :4.
In one embodiment of the present invention, inventive liquid detergent compositions have a pH value in the range of from 7 to 9.5, preferably 8 to 9.
In one embodiment of the present invention inventive liquid detergent compositions comprise (A) in the range of from 5 to 15 % by weight of chelating agent, preferably 6 to 12 % by
weight,
(B) in the range of from 10 to 40 % by weight of anionic surfactant, preferably 10 to 35 % by weight, and
(C) in the range of from 5 to 40 % by weight of non-ionic surfactant, preferably 8 to 30 % by weight,
percentages referring to the total solids content of said liquid detergent composition. In one embodiment of the present invention inventive liquid detergent compositions said liquid laundry care compositions are free from bleaching agents. Bleaching agents in the context of the present invention are organic peroxides, inorganic peroxides and chlorine bleaches. Examples of organic and inorganic peroxides are sodium perborate, anhydrous or for example as monohydrate or as tetrahydrate or so-called dihydrate, sodium percarbonate, anhydrous or, for example, as monohydrate, hydrogen peroxide, persulfates, organic peracids such as peroxylauric acid, peroxystearic acid, peroxy-a-naphthoic acid, 1 ,12-diperoxydodecanedioic acid, per- benzoic acid, peroxylauric acid, 1 ,9-diperoxyazelaic acid, diperoxyisophthalic acid, in each case as free acid or as alkali metal salt, in particular as sodium salt, also sulfonylperoxy acids and cationic peroxy acids, chlorine-containing bleaches are, for example, 1 ,3-dichloro-5,5-dimethyl- hydantoin, N-N-chlorosulfamide, chloramine T, chloramine B, sodium hypochlorite, calcium hypochlorite, magnesium hypochlorite, potassium hypochlorite, potassium dichloroisocyanurate and sodium dichloroisocyanurate.
"Free from" in the context of bleaching agents means less than 0.5% by weight, referring to the total solids content.
In one embodiment of the present invention inventive liquid detergent compositions contain at least one alkali metal salt, preferably at least one potassium salt of a fatty acid. Examples are the sodium salts and especially the potassium salts of lauric acid, myristic acid, palmitic acid, stearic acid, (hydrogenated) erucic acid and behenic acid, and especially soap mixtures derived from natural fatty acids such as coconut oil fatty acid, palm kernel oil fatty acid, olive oil fatty acid or tallow fatty acid. Preferred examples are potassium coconut soap, potassium stearate, potassium oleate, potassium coconut soap with an average formula of n-C^HbsCOOK being even more preferred. The amount of potassium salt of fatty acid may be in the range of from 10 to 25 % by weight referring to the total solids content of said liquid detergent composition.
In one embodiment of the present invention inventive liquid detergent compositions comprise linear sodium dodecylbenzenesulphonate, for example a mixture from the sodium salts of linear 4-dodecylbenzenesulphonate and linear 5-dodecylbenzenesulphonate. The amount of linear sodium dodecylbenzenesulphonate may be in the range of from 10 to 40 % by weight referring to the total solids content of said liquid detergent composition.
Inventive liquid detergent compositions are liquid laundry detergent compositions. They may comprise ingredients other than the aforementioned. Examples are fragrances, dyestuffs, bio- cides, preservatives, enzymes, hydrotropes, builders, viscosity modifiers, polymers, buffers, defoamers, and anti-corrosion additives.
Examples of fragrances are benzyl salicylate, 2-(4-tert.-butylphenyl) 2-methylpropional, commercially available as Lilial®, and hexyl cinnamaldehyde.
Examples of dyestuffs are Acid Blue 9, Acid Yellow 3, Acid Yellow 23, Acid Yellow 73, Pigment Yellow 101 , Acid Green 1 , Solvent Green 7, and Acid Green 25.
Inventive liquid detergent compositions may contain one or more preservatives or biocides. Bio- cides and preservatives prevent alterations of inventive liquid detergent compositions due to attacks from microorganisms. Examples of biocides and preservatives are BTA (1 ,2,3- benzotriazole), benzalkonium chlorides, 1 ,2-benzisothiazolin-3-one ("BIT"), 2-methyl-2H- isothiazol-3-one (,,ΜΙΤ') and 5-chloro-2-methyl-2H-isothiazol-3-one („CIT"), benzoic acid, sorbic acid, iodopropynyl butylcarbamate ("IPBC"), dichlorodimethylhydantoine ("DCDMH"), bromo- chlorodimethylhydantoine ("BCDMH"), and dibromodimethylhydantoine ("DBDMH"). Examples of viscosity modifiers are agar-agar, carragene, tragacanth, gum arabic, alginates, pectins, hydroxyethyl cellulose, hydroxypropyl cellulose, starch, gelatin, locust bean gum, cross- linked poly(meth)acrylates, for example polyacrylic acid cross-linked with methylene bis- (meth)acrylamide, furthermore silicic acid, clay such as - but not limited to - montmorrilionite, zeolite, dextrin, and casein.
Hydrotropes in the context with the present invention are compounds that facilitate the dissolution of compounds that exhibit limited solubility in water. Examples of hydrotropes are organic solvents such as ethanol, isopropanol, ethylene glycol, 1 ,2-propylene glycol, and further organic solvents that are water-miscible under normal conditions without limitation. Further examples of suitable hydrotropes are the sodium salts of toluene sulfonic acid, of xylene sulfonic acid, and of cumene sulfonic acid.
Examples of of useful enzymes are lipases, hydrolases, amylases, proteases, cellulases, hemi- cellulases, lipases, phospholipases, esterases, pectinases, lactases and peroxidases, and combinations of at least two of the foregoing types of the foregoing. Particularly useful enzymes are selected from are proteases, amylases, and cellulases.
Examples of polymers are especially polyacrylic acid and its respective alkali metal salts, especially its sodium salt. A suitable polymer is in particular polyacrylic acid, preferably with an aver- age molecular weight Mw in the range from 2,000 to 40,000 g/mol. preferably 2,000 to 10,000 g/mol, in particular 3,000 to 8,000 g/mol, each partially or fully neutralized with alkali, especially with sodium. Also of suitability are copolymeric polycarboxylates, in particular those of acrylic acid with methacrylic acid and of acrylic acid or methacrylic acid with maleic acid and/or fumaric acid. Polyacrylic acid and its respective alkali metal salts may serve as soil anti-redeposition agents.
Further examples of polymers are polyvinylpyrrolidones (PVP). Polyvinylpyrrolidones may serve as dye transfer inhibitors.
Further examples of polymers are polyethylene terephthalates, polyoxyethylene terphthalates, and polyethylene terephthalates that are end-capped with one or two hydrophilic groups per molecule, hydrophilic groups being selected from ChbChbCI-b-SOsNa, CH2CH(CH2-S03Na)2, and CH2CH(CH2S02Na)CH2-S03Na.
Examples of buffers are monoethanolamine and Ν,Ν,Ν-triethanolamine.
Examples of defoamers are silicones.
Inventive liquid detergent compositions are not only good in cleaning soiled laundry with respect to inorganic soil such as clay, or organic fatty soil such as oil. Inventive liquid detergent compo- sitions are very useful for removing non-bleachable stains such as, but not limited to stains from red wine, tea, coffee, vegetables, and various fruit juices like berry juices from laundry. They still do not leave residues on the clothes.
In order to be suitable as liquid laundry detergent inventive liquid detergent compositions may be in bulk form or as unit doses, for example in the form of sachets or pouches. Suitable materials for pouches are water-soluble polymers such as polyvinyl alcohol.
Another aspect of the present invention is the use of an inventive liquid detergent composition for cleaning laundry. Particularly, an aspect of the present invention is the use of inventive liquid detergent compositions for cleaning laundry stained with at least one of red wine, tea, coffee, vegetables, or fruit juice. Particularly important examples of fruit juices are apple juice, blueberry juice and blackberry juice. Another aspect of the present invention is a process to clean laundry, hereinafter also referred to as inventive process. The inventive process is directed towards cleaning laundry stained with bleachable stains such as at least one of red wine, tea, coffee, vegetables, or fruit juice such as, but not limited to apple juice, blueberry juice or blackberry juice by applying at least one inventive liquid detergent composition. The inventive process can be performed in an automatic laundry cleaner or manually. Said inventive detergent composition is preferably diluted with water before applying it to the soiled laundry. In one embodiment of the present invention the inventive process is characterized in that the respective inventive liquid detergent composition is being applied to soiled laundry at a temperature in the range of from 20 to 65°C.
By the inventive process - and according to the inventive use as well - such bleachable stains can be removed very efficiently.
A further aspect of the present invention is a process for making inventive liquid detergent compositions, hereinafter also referred to as inventive method. The inventive method comprises mixing chelating agent (A), surfactant (B) and surfactant (C), and, optionally, further ingredients as outlined above, with water in one or more steps.
The present invention is further illustrated by working examples.
The present invention is further illustrated by working examples. The wash performance of for- mulations F.1 , F.2 and F.3 was determined and compared to the formulation without MGDA
(V.1 ). Composition of the formulations is given in table 1 . The washing conditions are illustrated in table 2. The respective formulations were made as follows:
A vessel was charged with 120 ml of water. Anionic surfactant 2 according to Table 1 and 1 ,2- propylene glycol - amount: 6 % by weight referring to the total solids content - were added and the resultant mixture was heated to 50-55°C under stirring. The pH value was adjusted to 3 to 4 with aqueous potassium hydroxide solution (50%) and potassium coconut soap was added.
Chelating agent (A.1 ) was added to the mixture so obtained, and the pH value was adjusted to
8.5 with aqueous potassium hydroxide solution (50%). Surfactant (B.1 ) and surfactant (C.1 ) were added. Ethanol - amount: 2 % by weight referring to the total solids content - was added.
Then the balance of water was added, and the resultant formulation was allowed to cool down to room temperature.
Table 1 : Inventive liquid detergent compositions and comparative liquid detergent compositions
All amounts in g/100 g of solids content of the respective formulation.
Explanations to ingredients:
(A.1 ): MGDA, trisodium salt
(B.1 ): n-Ci2H25-0-(CH2CH20)3-S03Na
(C.1 ): n-Ci8H37-0(CH2CH20)7-H
Anionic surfactant 2: sodium salt of linear dodecylbenzenesulphonate
The washing conditions may be summarized as follows:
Device Launder-0-Meter+ from SDL Atlas, Rock
Hill, USA
Washing liquor 250 ml_
Washing time 20 minutes
Washing temperature 40 °C
Detergent concentration 5.0 g/L
Water hardness 2.5 mmol/L; Ca:Mg:HC03 4:1 :8
Fabric to liquor ratio 1 :12.5
Washing cycles* 1 per type of soiled fabrics
Soiled fabrics 4 fabrics of 2.5 g wfk 10J tee on cotton (fabrics from WFK Testgewebe GmbH,
Brueggen, Germany)
3 fabrics of 3.5 g Warwick 126 KC red wine on knitted cotton
3 fabrics of 3.5 g Warwick 023KC blueberry on knitted cotton
3 fabrics of 3.5 g Warwick 1 14KC strawberry on knitted cotton
(fabrics from Warwick Chemicals, Consett, County Durham, DH8 6BN, England)
Ballast fabrics 4 fabrics of BW 283
After the one cycle, soiled fabrics were rinsed with water, followed by shortly spin-drying and drying at room temperature over a period of 12 hours.
To evaluate the primary detergency of different bleachable stains, the degree of whiteness of the different soiled fabrics was determined before and after washing (delta reflectance values are shown in Table 3 using a sphere reflectance spectrometer (SF 500 type from Datacolor, USA, wavelength range 360-700nm, optical geometry d/8°) with a UV cut-off filter at 460 nm. For obtaining the reflectance values for the respective fabric both before and after washing, an average of 6 different measuring points were taken each before and after washing. Higher delta reflectance values demonstrate a better primary detergency. Table 3. Launder-O-meter washing performance results
All values are delta reflectance values.
If the delta reflectance value difference of the formulations according to the present invention (F.1 , F.2, F.3) with respect to the comparative formulation (V.1 ) is bigger than 2 then the washing performance of the corresponding bleachable soiled fabrics has been clearly improved. It can be seen that with the addition of MGDA (A.1 ), where the weight ratio of (A.1 ) to (B.1 ) is in the range of from 1 :1 to 1 :8, the washing performance of the bleachable stains can be improved significantly. An additional performance increase can be accomplished by decreasing the weight ratio of (A.1 ) to [(B.1 ) +anionic surfactant 2].
Claims
Claims
Liquid detergent composition comprising
(A) at least one chelating agent selected from alkali metal salts of methyl glycine diacetate and glutamic acid diacetate,
(B) at least one anionic surfactant according to the general formula (I)
CnH2n+1-0(CH2CH20)x-S03M (I)
(C) at least one non-ionic surfactant according to the general formula (II),
the weight ratio of all chelating agent (A) to all anionic surfactant (B) being in the range of from 1 :1 to 1 :8, with the integers being defined as follows: n being a number in the range of from 10 to 18,
m being a number in the range of from 10 to 18,
M being selected from alkali metals,
AO being different or identical and selected from ethylene oxide, propylene oxide, and butylene oxide, x being a number in the range of from 1 to 5,
y being different or identical and selected from numbers in the range of from 1 to 12.
Liquid detergent composition according to claim 1 , wherein said liquid detergent composi tion is a liquid laundry detergent.
Liquid detergent composition according to claim 1 or 2, wherein chelating agent (A) is selected from the trisodium salt of methyl glycine diacetate and the tetrasodium salt of glutamic acid diacetate.
Liquid detergent composition according to any of the preceding claims wherein M in formula (I) is sodium.
Liquid detergent composition according to any of the preceding claims wherein said detergent composition comprises
(A) in the range of from 5 to 15 % by weight of chelating agent,
(B) in the range of from 10 to 40 % by weight of anionic surfactant and
(C) in the range of from 5 to 40 % by weight of non-ionic surfactant,
percentages referring to the total solids content of said liquid detergent composition.
6. Liquid detergent composition according to any of the preceding claims wherein the integer n is 12.
7. Liquid detergent composition according to any of the preceding claims wherein said liquid laundry care composition is free from bleaching agents. 8. Liquid detergent composition according to any of the preceding claims wherein the liquid detergent composition contains at least one potassium salt of a fatty acid.
9. Liquid detergent composition according to any of the preceding claims wherein said detergent comprises linear sodium dodecylbenzenesulphonate.
10. Process to clean laundry stained with at least one of red wine, tea, coffee, vegetables, or fruit juice by applying at least one liquid detergent composition according to any of claims 1 to 8. 1 1 . Process according to claim 9 wherein said liquid detergent composition is being applied to soiled laundry at a temperature in the range of from 20 to 65°C.
12. Use of a liquid detergent composition according to any of claims 1 to 8 for cleaning laundry.
13. Use according to claim 1 1 wherein such laundry is stained with at least one of red wine, tea, coffee, vegetables, or fruit juice.
14. Process for making a liquid detergent composition according to any of the claims 1 to 9 comprising mixing components (A), (B) and (C) with water in one or more steps.
Priority Applications (9)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| MX2017000777A MX2017000777A (en) | 2014-07-17 | 2015-07-07 | Liquid detergent compositions and their manufacture. |
| KR1020177001276A KR20170032310A (en) | 2014-07-17 | 2015-07-07 | Liquid detergent compositions and their manufacture |
| CN201580036723.XA CN106536698A (en) | 2014-07-17 | 2015-07-07 | Liquid detergent compositions and their manufacture |
| JP2017502839A JP2017528552A (en) | 2014-07-17 | 2015-07-07 | Liquid detergent composition and method for producing the same |
| BR112017000752A BR112017000752A2 (en) | 2014-07-17 | 2015-07-07 | liquid detergent composition, processes for cleaning stained clothing and making a liquid detergent composition, and use of a liquid detergent composition. |
| US15/323,889 US20170145354A1 (en) | 2014-07-17 | 2015-07-07 | Liquid detergent compositions and their manufacture |
| RU2017105100A RU2695059C2 (en) | 2014-07-17 | 2015-07-07 | Liquid detergent compositions and production thereof |
| EP15734385.6A EP3169759A1 (en) | 2014-07-17 | 2015-07-07 | Liquid detergent compositions and their manufacture |
| CA2953045A CA2953045A1 (en) | 2014-07-17 | 2015-07-07 | Liquid detergent compositions and their manufacture |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP14177481 | 2014-07-17 | ||
| EP14177481.0 | 2014-07-17 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2016008765A1 true WO2016008765A1 (en) | 2016-01-21 |
Family
ID=51178802
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/EP2015/065428 WO2016008765A1 (en) | 2014-07-17 | 2015-07-07 | Liquid detergent compositions and their manufacture |
Country Status (10)
| Country | Link |
|---|---|
| US (1) | US20170145354A1 (en) |
| EP (1) | EP3169759A1 (en) |
| JP (1) | JP2017528552A (en) |
| KR (1) | KR20170032310A (en) |
| CN (1) | CN106536698A (en) |
| BR (1) | BR112017000752A2 (en) |
| CA (1) | CA2953045A1 (en) |
| MX (1) | MX2017000777A (en) |
| RU (1) | RU2695059C2 (en) |
| WO (1) | WO2016008765A1 (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017189703A1 (en) | 2016-04-27 | 2017-11-02 | Dow Corning Corporation | Detergent composition comprising a carbinol functional trisiloxane |
| WO2020234597A1 (en) | 2019-05-22 | 2020-11-26 | Reckitt Benckiser Llc | Detergent formulations having enhanced germ removal efficacy |
| WO2020260038A1 (en) * | 2019-06-28 | 2020-12-30 | Unilever Plc | Detergent composition |
| WO2022063708A1 (en) | 2020-09-24 | 2022-03-31 | Unilever Ip Holdings B.V. | Composition |
| WO2023051978A1 (en) | 2021-09-29 | 2023-04-06 | Unilever Ip Holdings B.V. | Composition |
| US11713435B2 (en) | 2018-01-30 | 2023-08-01 | Eastman Chemical Company | Aminocarboxylate chelating agents and detergent compositions containing them |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ES2855023T3 (en) * | 2014-11-26 | 2021-09-23 | Procter & Gamble | Cleaning bag |
| JP7064743B2 (en) * | 2017-12-27 | 2022-05-11 | 株式会社ニイタカ | Effervescent detergent composition |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1998013467A1 (en) * | 1996-09-27 | 1998-04-02 | Unilever N.V. | Aqueous structured liquid detergent composition comprising aminocarboxylate sequestrant |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000008099A (en) * | 1998-06-23 | 2000-01-11 | Kao Corp | Liquid detergent composition |
| JP2000026890A (en) * | 1998-07-06 | 2000-01-25 | Kao Corp | Detergent composition |
| JP4017940B2 (en) * | 2002-08-14 | 2007-12-05 | 花王株式会社 | Foam-coated laundry pretreatment agent |
| ES2264111T3 (en) * | 2003-02-22 | 2006-12-16 | Reckitt, Benckiser, Inc. | COMPOSITIONS FOR CLEANING HARD SURFACES. |
| DE102004007860A1 (en) * | 2004-02-17 | 2005-09-15 | Henkel Kgaa | Dispenser bottle for liquid detergents consisting of at least two partial compositions |
| WO2007084729A2 (en) * | 2006-01-23 | 2007-07-26 | The Procter & Gamble Company | Laundry care compositions with thiazolium dye |
| ES2412707T5 (en) * | 2009-06-19 | 2023-06-12 | Procter & Gamble | Liquid detergent composition for hand dishwashing |
| EP2431452B1 (en) * | 2010-09-21 | 2015-07-08 | The Procter & Gamble Company | Liquid cleaning composition |
| US20120205581A1 (en) * | 2011-02-16 | 2012-08-16 | Robert Richard Dykstra | Compositions and methods of bleaching |
| JP5832813B2 (en) * | 2011-08-11 | 2015-12-16 | 花王株式会社 | Liquid detergent composition |
-
2015
- 2015-07-07 US US15/323,889 patent/US20170145354A1/en not_active Abandoned
- 2015-07-07 BR BR112017000752A patent/BR112017000752A2/en not_active Application Discontinuation
- 2015-07-07 CA CA2953045A patent/CA2953045A1/en not_active Abandoned
- 2015-07-07 RU RU2017105100A patent/RU2695059C2/en not_active IP Right Cessation
- 2015-07-07 MX MX2017000777A patent/MX2017000777A/en unknown
- 2015-07-07 EP EP15734385.6A patent/EP3169759A1/en not_active Ceased
- 2015-07-07 JP JP2017502839A patent/JP2017528552A/en active Pending
- 2015-07-07 KR KR1020177001276A patent/KR20170032310A/en unknown
- 2015-07-07 CN CN201580036723.XA patent/CN106536698A/en active Pending
- 2015-07-07 WO PCT/EP2015/065428 patent/WO2016008765A1/en active Application Filing
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1998013467A1 (en) * | 1996-09-27 | 1998-04-02 | Unilever N.V. | Aqueous structured liquid detergent composition comprising aminocarboxylate sequestrant |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017189703A1 (en) | 2016-04-27 | 2017-11-02 | Dow Corning Corporation | Detergent composition comprising a carbinol functional trisiloxane |
| US10829718B2 (en) | 2016-04-27 | 2020-11-10 | Dow Silicones Corporation | Detergent composition comprising a carbinol functional trisiloxane |
| US11713435B2 (en) | 2018-01-30 | 2023-08-01 | Eastman Chemical Company | Aminocarboxylate chelating agents and detergent compositions containing them |
| WO2020234597A1 (en) | 2019-05-22 | 2020-11-26 | Reckitt Benckiser Llc | Detergent formulations having enhanced germ removal efficacy |
| WO2020260038A1 (en) * | 2019-06-28 | 2020-12-30 | Unilever Plc | Detergent composition |
| CN114008183A (en) * | 2019-06-28 | 2022-02-01 | 联合利华知识产权控股有限公司 | Detergent composition |
| WO2022063708A1 (en) | 2020-09-24 | 2022-03-31 | Unilever Ip Holdings B.V. | Composition |
| WO2023051978A1 (en) | 2021-09-29 | 2023-04-06 | Unilever Ip Holdings B.V. | Composition |
Also Published As
| Publication number | Publication date |
|---|---|
| MX2017000777A (en) | 2017-04-27 |
| BR112017000752A2 (en) | 2017-11-14 |
| RU2017105100A (en) | 2018-08-17 |
| CN106536698A (en) | 2017-03-22 |
| CA2953045A1 (en) | 2016-01-21 |
| RU2017105100A3 (en) | 2019-01-24 |
| KR20170032310A (en) | 2017-03-22 |
| US20170145354A1 (en) | 2017-05-25 |
| JP2017528552A (en) | 2017-09-28 |
| RU2695059C2 (en) | 2019-07-19 |
| EP3169759A1 (en) | 2017-05-24 |
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