EP0906391A2 - Improvements relating to bleaching compositions - Google Patents
Improvements relating to bleaching compositionsInfo
- Publication number
- EP0906391A2 EP0906391A2 EP97929172A EP97929172A EP0906391A2 EP 0906391 A2 EP0906391 A2 EP 0906391A2 EP 97929172 A EP97929172 A EP 97929172A EP 97929172 A EP97929172 A EP 97929172A EP 0906391 A2 EP0906391 A2 EP 0906391A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- composition according
- phosphonic acid
- metal ion
- complexing agent
- ion complexing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
Links
- 239000000203 mixture Substances 0.000 title claims abstract description 53
- 238000004061 bleaching Methods 0.000 title claims abstract description 11
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 claims abstract description 20
- 239000004094 surface-active agent Substances 0.000 claims abstract description 16
- 229910021645 metal ion Inorganic materials 0.000 claims abstract description 12
- 235000019820 disodium diphosphate Nutrition 0.000 claims abstract description 11
- GYQBBRRVRKFJRG-UHFFFAOYSA-L disodium pyrophosphate Chemical compound [Na+].[Na+].OP([O-])(=O)OP(O)([O-])=O GYQBBRRVRKFJRG-UHFFFAOYSA-L 0.000 claims abstract description 11
- 239000008139 complexing agent Substances 0.000 claims abstract description 9
- 239000002304 perfume Substances 0.000 claims abstract description 9
- 238000000034 method Methods 0.000 claims abstract description 3
- 239000004753 textile Substances 0.000 claims abstract description 3
- -1 alkyl sulphates Chemical class 0.000 claims description 17
- 239000003599 detergent Substances 0.000 claims description 15
- IAYPIBMASNFSPL-UHFFFAOYSA-N Ethylene oxide Chemical compound C1CO1 IAYPIBMASNFSPL-UHFFFAOYSA-N 0.000 claims description 9
- 125000004432 carbon atom Chemical group C* 0.000 claims description 9
- 150000001298 alcohols Chemical class 0.000 claims description 8
- 125000000217 alkyl group Chemical group 0.000 claims description 7
- 150000004996 alkyl benzenes Chemical class 0.000 claims description 5
- 125000000129 anionic group Chemical group 0.000 claims description 5
- KCXVZYZYPLLWCC-UHFFFAOYSA-N EDTA Chemical compound OC(=O)CN(CC(O)=O)CCN(CC(O)=O)CC(O)=O KCXVZYZYPLLWCC-UHFFFAOYSA-N 0.000 claims description 4
- 150000003007 phosphonic acid derivatives Chemical class 0.000 claims description 4
- 150000003839 salts Chemical class 0.000 claims description 4
- YDONNITUKPKTIG-UHFFFAOYSA-N [Nitrilotris(methylene)]trisphosphonic acid Chemical compound OP(O)(=O)CN(CP(O)(O)=O)CP(O)(O)=O YDONNITUKPKTIG-UHFFFAOYSA-N 0.000 claims description 3
- DUYCTCQXNHFCSJ-UHFFFAOYSA-N dtpmp Chemical compound OP(=O)(O)CN(CP(O)(O)=O)CCN(CP(O)(=O)O)CCN(CP(O)(O)=O)CP(O)(O)=O DUYCTCQXNHFCSJ-UHFFFAOYSA-N 0.000 claims description 3
- 229960001484 edetic acid Drugs 0.000 claims description 3
- BAERPNBPLZWCES-UHFFFAOYSA-N (2-hydroxy-1-phosphonoethyl)phosphonic acid Chemical compound OCC(P(O)(O)=O)P(O)(O)=O BAERPNBPLZWCES-UHFFFAOYSA-N 0.000 claims description 2
- NFDRPXJGHKJRLJ-UHFFFAOYSA-N edtmp Chemical compound OP(O)(=O)CN(CP(O)(O)=O)CCN(CP(O)(O)=O)CP(O)(O)=O NFDRPXJGHKJRLJ-UHFFFAOYSA-N 0.000 claims description 2
- 150000001875 compounds Chemical class 0.000 description 11
- 229910052708 sodium Inorganic materials 0.000 description 9
- 239000011734 sodium Substances 0.000 description 9
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 8
- 239000002736 nonionic surfactant Substances 0.000 description 7
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 6
- 239000007844 bleaching agent Substances 0.000 description 6
- 235000019864 coconut oil Nutrition 0.000 description 5
- 239000003240 coconut oil Substances 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 150000001412 amines Chemical class 0.000 description 4
- 238000004140 cleaning Methods 0.000 description 4
- 235000014113 dietary fatty acids Nutrition 0.000 description 4
- 239000000194 fatty acid Substances 0.000 description 4
- 229930195729 fatty acid Natural products 0.000 description 4
- 229910052700 potassium Inorganic materials 0.000 description 4
- 239000011591 potassium Substances 0.000 description 4
- 239000003352 sequestering agent Substances 0.000 description 4
- 239000002689 soil Substances 0.000 description 4
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 3
- 239000000654 additive Substances 0.000 description 3
- 239000007795 chemical reaction product Substances 0.000 description 3
- 239000000460 chlorine Substances 0.000 description 3
- 229910052801 chlorine Inorganic materials 0.000 description 3
- 239000004744 fabric Substances 0.000 description 3
- 229910021653 sulphate ion Inorganic materials 0.000 description 3
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- KFSLWBXXFJQRDL-UHFFFAOYSA-N Peracetic acid Chemical compound CC(=O)OO KFSLWBXXFJQRDL-UHFFFAOYSA-N 0.000 description 2
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 2
- 239000005708 Sodium hypochlorite Substances 0.000 description 2
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Natural products CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 239000003945 anionic surfactant Substances 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 239000007859 condensation product Substances 0.000 description 2
- WJJMNDUMQPNECX-UHFFFAOYSA-N dipicolinic acid Chemical compound OC(=O)C1=CC=CC(C(O)=O)=N1 WJJMNDUMQPNECX-UHFFFAOYSA-N 0.000 description 2
- 150000004665 fatty acids Chemical class 0.000 description 2
- 230000002209 hydrophobic effect Effects 0.000 description 2
- 239000004615 ingredient Substances 0.000 description 2
- SUMDYPCJJOFFON-UHFFFAOYSA-N isethionic acid Chemical compound OCCS(O)(=O)=O SUMDYPCJJOFFON-UHFFFAOYSA-N 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 159000000001 potassium salts Chemical class 0.000 description 2
- SUKJFIGYRHOWBL-UHFFFAOYSA-N sodium hypochlorite Chemical compound [Na+].Cl[O-] SUKJFIGYRHOWBL-UHFFFAOYSA-N 0.000 description 2
- 159000000000 sodium salts Chemical class 0.000 description 2
- 239000003760 tallow Substances 0.000 description 2
- LJGHYPLBDBRCRZ-UHFFFAOYSA-N 3-(3-aminophenyl)sulfonylaniline Chemical compound NC1=CC=CC(S(=O)(=O)C=2C=C(N)C=CC=2)=C1 LJGHYPLBDBRCRZ-UHFFFAOYSA-N 0.000 description 1
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical group [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- DBVJJBKOTRCVKF-UHFFFAOYSA-N Etidronic acid Chemical compound OP(=O)(O)C(O)(C)P(O)(O)=O DBVJJBKOTRCVKF-UHFFFAOYSA-N 0.000 description 1
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 1
- 229910019142 PO4 Inorganic materials 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical class OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 1
- 239000005864 Sulphur Substances 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 125000001931 aliphatic group Chemical group 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 229910052783 alkali metal Inorganic materials 0.000 description 1
- 150000001340 alkali metals Chemical class 0.000 description 1
- 229910052784 alkaline earth metal Inorganic materials 0.000 description 1
- 150000001342 alkaline earth metals Chemical class 0.000 description 1
- 125000002947 alkylene group Chemical group 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- RZRTUSJGXCJSBR-UHFFFAOYSA-N azane 1,2-dipentylnaphthalene Chemical compound N.C1=CC=CC2=C(CCCCC)C(CCCCC)=CC=C21 RZRTUSJGXCJSBR-UHFFFAOYSA-N 0.000 description 1
- JXLHNMVSKXFWAO-UHFFFAOYSA-N azane;7-fluoro-2,1,3-benzoxadiazole-4-sulfonic acid Chemical compound N.OS(=O)(=O)C1=CC=C(F)C2=NON=C12 JXLHNMVSKXFWAO-UHFFFAOYSA-N 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 125000002091 cationic group Chemical group 0.000 description 1
- 239000012459 cleaning agent Substances 0.000 description 1
- 229940096386 coconut alcohol Drugs 0.000 description 1
- 230000000536 complexating effect Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 230000000249 desinfective effect Effects 0.000 description 1
- 229940042400 direct acting antivirals phosphonic acid derivative Drugs 0.000 description 1
- 239000000975 dye Substances 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 150000002170 ethers Chemical class 0.000 description 1
- 150000002191 fatty alcohols Chemical class 0.000 description 1
- 125000005456 glyceride group Chemical group 0.000 description 1
- 125000001165 hydrophobic group Chemical group 0.000 description 1
- 230000007794 irritation Effects 0.000 description 1
- 229940045996 isethionic acid Drugs 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 150000002680 magnesium Chemical class 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- PSZYNBSKGUBXEH-UHFFFAOYSA-N naphthalene-1-sulfonic acid Chemical compound C1=CC=C2C(S(=O)(=O)O)=CC=CC2=C1 PSZYNBSKGUBXEH-UHFFFAOYSA-N 0.000 description 1
- 239000003605 opacifier Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 150000007524 organic acids Chemical class 0.000 description 1
- 235000005985 organic acids Nutrition 0.000 description 1
- 239000007800 oxidant agent Substances 0.000 description 1
- VSXGXPNADZQTGQ-UHFFFAOYSA-N oxirane;phenol Chemical compound C1CO1.OC1=CC=CC=C1 VSXGXPNADZQTGQ-UHFFFAOYSA-N 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- KHIWWQKSHDUIBK-UHFFFAOYSA-N periodic acid Chemical class OI(=O)(=O)=O KHIWWQKSHDUIBK-UHFFFAOYSA-N 0.000 description 1
- 150000002978 peroxides Chemical class 0.000 description 1
- 125000000864 peroxy group Chemical group O(O*)* 0.000 description 1
- 125000005342 perphosphate group Chemical group 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
- 235000021317 phosphate Nutrition 0.000 description 1
- 150000003013 phosphoric acid derivatives Chemical class 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000000241 respiratory effect Effects 0.000 description 1
- 239000000344 soap Substances 0.000 description 1
- FQENQNTWSFEDLI-UHFFFAOYSA-J sodium diphosphate Chemical compound [Na+].[Na+].[Na+].[Na+].[O-]P([O-])(=O)OP([O-])([O-])=O FQENQNTWSFEDLI-UHFFFAOYSA-J 0.000 description 1
- PFUVRDFDKPNGAV-UHFFFAOYSA-N sodium peroxide Chemical compound [Na+].[Na+].[O-][O-] PFUVRDFDKPNGAV-UHFFFAOYSA-N 0.000 description 1
- 229940048086 sodium pyrophosphate Drugs 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- BDHFUVZGWQCTTF-UHFFFAOYSA-N sulfonic acid Chemical compound OS(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-N 0.000 description 1
- 239000000375 suspending agent Substances 0.000 description 1
- 235000019818 tetrasodium diphosphate Nutrition 0.000 description 1
- 239000001577 tetrasodium phosphonato phosphate Substances 0.000 description 1
- 230000008719 thickening Effects 0.000 description 1
- 239000002562 thickening agent Substances 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 239000008096 xylene Substances 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
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/39—Organic or inorganic per-compounds
- C11D3/3947—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
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/02—Inorganic compounds ; Elemental compounds
- C11D3/04—Water-soluble compounds
- C11D3/06—Phosphates, including polyphosphates
- C11D3/062—Special methods concerning phosphates
Definitions
- the present invention relates to bleaching compositions, and relates particularly to bleaching compositions which can be used on fabrics either by direct application of the composition to the fabric or as a wash additive
- Sodium hypochlorite is a powerful oxidising agent, which can decolourise a very large number of coloured compounds found in soils but which has significant limitations. Many consumers prefer not to use chlorine-based bleach compounds due the characteristic and pungent smell of chlorine.
- wash additives based on hydrogen peroxide and other peroxides for laundry applications are well known These generally comprise a surfactant, a peroxygen bleaching agent and a metal sequestering agent.
- WO 9314183 (P&G: 1992) relates to a stable colourless detergent composition of pH 4-11 which comprises:
- anionic or nonionic surfactant (which can be a nonionic surfactant)
- a metal sequestering agent which can be sodium pyrophosphate or a DEQUEST(TM) type sequestering agent.
- an aqueous bleaching composition of pH 1-3 which comprises:
- the invention also provides a process for removing stains from textile articles which comprises the step of treating the articles with a composition as described herein.
- compositions according to the present invention invariably comprise at least 0.5%wt of disodium dihydrogen pyrophosphate (otherwise known as sodium acid pyrophosphate) and have a pH in the range 1-3.
- disodium dihydrogen pyrophosphate otherwise known as sodium acid pyrophosphate
- pH in the range 1-3.
- the other components present are subject to some variability as to their precise nature and are discussed in further detail below.
- compositions according to the present invention comprise 2-8%wt of surfactant on product.
- a broad range of surfactants and surfactant combinations can be used in the compositions of the invention.
- Surfactants can be nonionic, anionic, cationic, amphoteric or zwitterionic provided that they, and where appropriate their counter- ions, do not react substantially with any peroxide compounds present.
- Preferred surfactants are selected from nonionic surfactants, anionic surfactants and mixtures thereof .
- Suitable nonionic detergent active compounds can be broadly described as compounds produced by the condensation of alkylene oxide groups, which are hydrophillic in nature, with an organic hydrophobic compound which may be aliphatic or alkyl aromatic in nature.
- the length of the hydrophillic or polyoxyalkylene radical which is condensed with any particular hydrophobic group can be readily adjusted to yield a water-soluble compound having the desired degree of balance between hydrophillic and hydrophobic elements.
- Particular examples include the condensation product of aliphatic alcohols having from 8 to 22 carbon atoms in either straight or branched chain configuration with ethylene oxide, such as a coconut oil ethylene oxide condensate having from 2 to 10 moles of ethylene oxide per mole of coconut alcohol; condensates of alkylphenols whose alkyl group contains from 6 to 12 carbon atoms with 2 to 10 moles of ethylene oxide per mole of alkylphenol.
- the preferred alkoxylated alcohol nonionic surfactants are ethoxylated alcohols having a chain length of C12-C15 and an EO value of at least 2 but less than 10.
- Particularly preferred nonionic surfactants include the condensation products of Cj , alcohols with 3-9 moles of ethylene oxide.
- An example of a suitable surfactant is ' Dobanol 25 7EO' (TM, ex. Shell) a Cj , alcohol with seven moles of ethoxy1atIon.
- the amount of nonionic detergent active to be employed in the composition of the invention will generally be from 0.1 to 15%wt, preferably from 0.1 to 10%wt, and most preferably from 4 to 10%wt .
- a mixed nonionic surfactant system which comprises two nomonics one of which has a relatively high HLB and the other of which has a relatively low HLB.
- this combination of noniomcs forms a stable emulsion.
- An example of a suitable system is one which comprises 2-5%wt each of two C12-C15 alcohols ethoxylated with 2-4 and 6-8 moles of ethylene oxide respectively.
- Two suitable noniomcs are Dobanol 25 7E0 [TM] ex. Shell and Dobanol 25 3E0 [TM] ex. Shell.
- Alternative surfactants include amine oxides, amines and/or ethoxylates thereof. Amine oxides with a carbon chain length of C12-C14 are particularly preferred.
- Suitable anionic detergent active compounds are water- soluble salts of organic sulphuric reaction products having in the molecular structure an alkyl radical containing from 8 to 22 carbon atoms, and a radical chosen from sulphonic acid or sulphur acid ester radicals and mixtures thereof.
- Suitable anionic detergents are sodium and potassium alcohol sulphates, especially those obtained by sulphating the higher alcohols produced by reducing the glycerides of tallow or coconut oil; sodium and potassium alkyl benzene sulphonates such as those m which the alkyl group contains from 9 to 15 carbon atoms; sodium and potassium secondary alkanesulphonates; sodium alkyl glyceryl ether sulphates, especially those ethers of the higher alcohols derived from tallow and coconut oil; sodium coconut oil fatty acid monoglyceride sulphates; sodium and potassium salts of sulphuric acid esters of the reaction product of one mole of a higher fatty alcohol and from 1 to 6 moles of ethylene oxide; sodium and potassium salts of alkyl phenol ethylene oxide ether sulphate with from 1 to 8 units of ethylene oxide molecule and in which the alkyl radicals contain from 4 to 14 carbon atoms; the reaction product of fatty acids esterified with isethionic acid
- the preferred water-soluble synthetic anionic detergent active compounds are the alkali metal (such as sodium and potassium) and alkaline earth metal (such as calcium and magnesium) salts of higher alkyl benzene sulphonates and mixtures with olefmsulphonates and higher alkyl sulphates, and the higher fatty acid monoglyceride sulphates.
- the most preferred anionic detergent active compounds are higher alkyl aromatic sulphonates (LAS) such as higher alkyl benzene sulphonates containing from 6 to 20 carbon atoms in the alkyl group in a straight or branched chain, particular examples of which are sodium salts of higher alkyl benzene sulphonates or of higher-alkyl toluene, xylene or phenol sulphonates, alkyl naphthalene sulphonates, ammonium diamyl naphthalene sulphonate, and sodium dmonyl naphthalene sulphonate.
- LAS higher alkyl aromatic sulphonates
- the most preferred anionics also include the higher alcohol sulphates (also known as alkyl sulphates) containing from 6 to 20 carbon atoms in the alkyl group m a straight or branched chain, particular examples of which are sodium salts of higher primary alkyl sulphates (PAS) .
- higher alcohol sulphates also known as alkyl sulphates
- PAS sodium salts of higher primary alkyl sulphates
- the amount of synthetic anionic detergent active to be employed in the detergent composition of this invention will generally be from 0.1 to 15%, preferably from 1 to 5%wt, with levels of l-2%wt being particularly preferred.
- compositions contain an amount of both the anionic and the nonionic detergent active.
- total surfactant content lies in the range 0.1-10%wt.
- the weight ratio of anionic detergent to nonionic detergent active may vary and will depend on their nature but is preferably in the range of from 1:9 to 9:1, ideally from 1 : 4 to 4 : 1.
- a particularly suitable surfactant system comprises 1-2% alkyl benzene sulphonate and 0.5-2%wt C12-15, 5-8 EO ethoxylated alcohol nonionic, a suitable alternative surfactant system 8785 PC17EP97/03059
- Suitable peroxy compounds for inclusion in compositions according to the invention include, hydrogen peroxide, perborates, persulphates, peroxysulphates, perphosphates, periodates, percarbonates and mixtures thereof. Particularly preferred materials are hydrogen peroxide, sodium peroxide, peracetic acid, performic acid and mono- persulphate salts. Hydrogen peroxide is most preferred.
- compositions according to the present invention comprise 5-10%wt hydrogen peroxide
- compositions according to the present invention comprise l-7%wt, more preferably l-2%wt disodium dihydrogen pyrophosphate. This material is otherwise known as sodium acid pyrophosphate.
- compositions according to the present invention comprise 0.1-0.5%wt of at least one metal ion complexing agent other than disodium dihydrogen pyrophosphate,
- cleaning and/or disinfecting compositions according to the invention will further comprise metal ion sequestrants such as ethylene-diamine-tetra-acetates, amino-polyphosphonates (such as those in the DEQUEST (TM) range) and phosphates and a wide variety of other poly- functional organic acids and salts, can also optionally be employed.
- metal ion sequestrants such as ethylene-diamine-tetra-acetates, amino-polyphosphonates (such as those in the DEQUEST (TM) range) and phosphates and a wide variety of other poly- functional organic acids and salts, can also optionally be employed.
- Preferred metal ion sequesterants are selected from dipicolinic acid, ethylene diamine tetra acetic acid (EDTA) and its salts, hydroxy-ethylidene diphosphonic acid (Dequest 2010, RTM), ethylene diamine tetra (methylene phosphonic acid) (Dequest 2040, RTM), diethylene triamine penta (methylene phosphonic acid) (Dequest 2060, RTM), amino tri (methylene phosphonic acid) (Dequest 2000, RTM) .
- EDTA ethylene diamine tetra acetic acid
- the phosphonic acid derivatives are particularly preferred.
- Diethylene triamine penta methylene phosphonic acid
- RTM diethylene triamine penta
- the level of phosphonic acid derivative metal ion complexing agent should fall into the range 0.1-3%wt, with levels of 0.1-0.5%wt being particularly preferred.
- Perfume is an optional component of the present invention but is highly preferred.
- Preferred compositions according to the present invention comprise 0.1-0.2%wt of perfume.
- a wide range of perfumes can be employed provided that the perfume is sufficiently stable in the composition.
- compositions according to the present invention are liquids, they can be water-thin or thickened. Thickened compositions are advantageous in that they cling to sloping surfaces and find particular utility in toilet cleaners. Slight thickening of the composition is desirable for applications in which the composition is sprayed, so as to reduce the extent to which small droplets are produced which might otherwise cause respiratory irritation to the user.
- Suitable thickening agents include amine oxide and soap and systems based on nonionic surfactants.
- the compositions are no significantly thickened.
- compositions according to the invention can also contain, in addition to the ingredients already mentioned, various other optional ingredients such as, colourants, optical brighteners, soil suspending agents, gel-control agents, freeze-thaw stabilisers and opacifiers.
- various other optional ingredients such as, colourants, optical brighteners, soil suspending agents, gel-control agents, freeze-thaw stabilisers and opacifiers.
- the pH of compositions according to the invention is in the range 1.5-2.5.
- the pH of compositions according to the invention can be regulated using acids, preferably HC1 and alkali's, preferably NaOH.
- compositions were made up using materials as identified in table 1.
- compositions were prepared by mixing the compounds as indicating below in a stirring tank at room temperature. No particular order of addition is required, although it is preferred that the perfume and any dyestuff are added last.
Landscapes
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Detergent Compositions (AREA)
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| BR9602854 | 1996-06-20 | ||
| BR9602854A BR9602854A (pt) | 1996-06-20 | 1996-06-20 | Sistema ácido alvejante com estabilização e à base de peróxido de hidrogênio em meio aquoso e composição alvejante e batericida com estabilização e à base de peróxido de hidrogênio acondicionada em meio aquoso e ácido para a pré-lavagem ou a lavagem de tecidos ou superfícies duras |
| PCT/EP1997/003059 WO1997048785A2 (en) | 1996-06-20 | 1997-06-10 | Improvements relating to bleaching compositions |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP0906391A2 true EP0906391A2 (en) | 1999-04-07 |
Family
ID=4064554
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP97929172A Ceased EP0906391A2 (en) | 1996-06-20 | 1997-06-10 | Improvements relating to bleaching compositions |
Country Status (12)
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2071017A1 (en) * | 2007-12-04 | 2009-06-17 | The Procter and Gamble Company | Detergent composition |
| EP2554742A1 (en) | 2011-08-01 | 2013-02-06 | Mehmet Korgün Sengün | Stable concentrated hydrogen peroxide compositions for bleaching textiles |
| US10253281B2 (en) | 2012-08-20 | 2019-04-09 | Ecolab Usa Inc. | Method of washing textile articles |
| EP2759518B1 (en) | 2013-01-24 | 2019-05-22 | MKS-DEVO Kimyevi Mad. San. Tic. A.S. | Bleaching compositions with improved performance and stability and their use |
| GB2574006B (en) * | 2018-05-21 | 2023-05-10 | Reckitt Benckiser Vanish Bv | Peroxide laundry formulation |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE614204A (enrdf_load_stackoverflow) * | 1961-02-22 | |||
| US4298492A (en) * | 1979-06-21 | 1981-11-03 | Lever Brothers Company | Built liquid detergent composition |
| EP0504952A1 (en) * | 1991-02-15 | 1992-09-23 | The Procter & Gamble Company | Stable liquid amidoperoxyacid bleach |
| US5244593A (en) * | 1992-01-10 | 1993-09-14 | The Procter & Gamble Company | Colorless detergent compositions with enhanced stability |
| US5248434A (en) * | 1992-04-20 | 1993-09-28 | The Proctor & Gamble Company | Liquid or gel bleaching composition containing amidoperoxyacid bleach and perfume |
| US5234617A (en) * | 1992-04-20 | 1993-08-10 | Kathleen B. Hunter | Aqueous liquid bleach compositions with fluorescent whitening agent and polyvinyl pyrrolidone or polyvinyl alcohol |
| US5419847A (en) * | 1993-05-13 | 1995-05-30 | The Procter & Gamble Company | Translucent, isotropic aqueous liquid bleach composition |
-
1996
- 1996-06-20 BR BR9602854A patent/BR9602854A/pt not_active Application Discontinuation
-
1997
- 1997-06-10 HU HU9903642A patent/HUP9903642A3/hu unknown
- 1997-06-10 CA CA002255809A patent/CA2255809A1/en not_active Abandoned
- 1997-06-10 PL PL97330729A patent/PL330729A1/xx unknown
- 1997-06-10 TR TR1998/02605T patent/TR199802605T2/xx unknown
- 1997-06-10 AU AU33380/97A patent/AU724373B2/en not_active Ceased
- 1997-06-10 BR BR9709908A patent/BR9709908A/pt not_active Application Discontinuation
- 1997-06-10 WO PCT/EP1997/003059 patent/WO1997048785A2/en not_active Application Discontinuation
- 1997-06-10 EP EP97929172A patent/EP0906391A2/en not_active Ceased
- 1997-06-19 ZA ZA975422A patent/ZA975422B/xx unknown
- 1997-06-19 IN IN367BO1997 patent/IN189792B/en unknown
- 1997-06-20 AR ARP970102717A patent/AR007433A1/es unknown
- 1997-06-30 ID IDP972130A patent/ID18683A/id unknown
Non-Patent Citations (1)
| Title |
|---|
| See references of WO9748785A2 * |
Also Published As
| Publication number | Publication date |
|---|---|
| AR007433A1 (es) | 1999-10-27 |
| ID18683A (id) | 1998-04-30 |
| PL330729A1 (en) | 1999-05-24 |
| WO1997048785A2 (en) | 1997-12-24 |
| BR9602854A (pt) | 1998-04-28 |
| TR199802605T2 (en) | 1999-03-22 |
| ZA975422B (en) | 1998-12-21 |
| WO1997048785A3 (en) | 1998-02-05 |
| BR9709908A (pt) | 1999-08-10 |
| HUP9903642A3 (en) | 2002-04-29 |
| AU724373B2 (en) | 2000-09-21 |
| CA2255809A1 (en) | 1997-12-24 |
| IN189792B (enrdf_load_stackoverflow) | 2003-04-19 |
| HUP9903642A2 (hu) | 2000-03-28 |
| AU3338097A (en) | 1998-01-07 |
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