WO2010018043A1 - Builder composition - Google Patents
Builder composition Download PDFInfo
- Publication number
- WO2010018043A1 WO2010018043A1 PCT/EP2009/059134 EP2009059134W WO2010018043A1 WO 2010018043 A1 WO2010018043 A1 WO 2010018043A1 EP 2009059134 W EP2009059134 W EP 2009059134W WO 2010018043 A1 WO2010018043 A1 WO 2010018043A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- composition
- builder composition
- builder
- alkali metal
- range
- Prior art date
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- 239000000203 mixture Substances 0.000 title claims abstract description 90
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims abstract description 35
- 239000008233 hard water Substances 0.000 claims abstract description 23
- 229910001425 magnesium ion Inorganic materials 0.000 claims abstract description 22
- -1 alkali metal aluminate Chemical class 0.000 claims abstract description 20
- 230000001376 precipitating effect Effects 0.000 claims abstract description 19
- 150000001875 compounds Chemical class 0.000 claims abstract description 18
- JLVVSXFLKOJNIY-UHFFFAOYSA-N Magnesium ion Chemical compound [Mg+2] JLVVSXFLKOJNIY-UHFFFAOYSA-N 0.000 claims abstract description 17
- 229910000019 calcium carbonate Inorganic materials 0.000 claims abstract description 17
- 239000003623 enhancer Substances 0.000 claims abstract description 17
- 229910000288 alkali metal carbonate Inorganic materials 0.000 claims abstract description 13
- 150000008041 alkali metal carbonates Chemical class 0.000 claims abstract description 13
- 229910052910 alkali metal silicate Inorganic materials 0.000 claims abstract description 11
- 229910052783 alkali metal Inorganic materials 0.000 claims abstract description 10
- 229910000287 alkaline earth metal oxide Inorganic materials 0.000 claims abstract description 8
- NWONKYPBYAMBJT-UHFFFAOYSA-L zinc sulfate Chemical compound [Zn+2].[O-]S([O-])(=O)=O NWONKYPBYAMBJT-UHFFFAOYSA-L 0.000 claims abstract description 6
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims abstract description 5
- 239000003513 alkali Substances 0.000 claims abstract description 5
- 150000004679 hydroxides Chemical class 0.000 claims abstract description 5
- 239000003599 detergent Substances 0.000 claims description 30
- 239000002253 acid Substances 0.000 claims description 15
- 239000004094 surface-active agent Substances 0.000 claims description 14
- 239000003352 sequestering agent Substances 0.000 claims description 10
- 150000004996 alkyl benzenes Chemical class 0.000 claims description 9
- 159000000003 magnesium salts Chemical group 0.000 claims description 7
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 claims description 6
- 125000000129 anionic group Chemical group 0.000 claims description 5
- 239000002245 particle Substances 0.000 claims description 5
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical group [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 claims description 3
- 239000000920 calcium hydroxide Substances 0.000 claims description 3
- 229910001861 calcium hydroxide Inorganic materials 0.000 claims description 3
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 claims description 3
- 239000000292 calcium oxide Substances 0.000 claims description 3
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 claims description 3
- 125000002091 cationic group Chemical group 0.000 claims description 3
- 239000010459 dolomite Substances 0.000 claims description 3
- 229910000514 dolomite Inorganic materials 0.000 claims description 3
- ZLNQQNXFFQJAID-UHFFFAOYSA-L magnesium carbonate Chemical compound [Mg+2].[O-]C([O-])=O ZLNQQNXFFQJAID-UHFFFAOYSA-L 0.000 claims description 3
- 239000001095 magnesium carbonate Substances 0.000 claims description 3
- 229910000021 magnesium carbonate Inorganic materials 0.000 claims description 3
- MGFYIUFZLHCRTH-UHFFFAOYSA-N nitrilotriacetic acid Chemical compound OC(=O)CN(CC(O)=O)CC(O)=O MGFYIUFZLHCRTH-UHFFFAOYSA-N 0.000 claims description 3
- 150000003839 salts Chemical class 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 23
- 239000004744 fabric Substances 0.000 description 21
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 20
- 238000004140 cleaning Methods 0.000 description 16
- 239000011575 calcium Substances 0.000 description 14
- 229910001424 calcium ion Inorganic materials 0.000 description 14
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 13
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 13
- 239000004115 Sodium Silicate Substances 0.000 description 13
- 238000000034 method Methods 0.000 description 12
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 12
- KCXVZYZYPLLWCC-UHFFFAOYSA-N EDTA Chemical compound OC(=O)CN(CC(O)=O)CCN(CC(O)=O)CC(O)=O KCXVZYZYPLLWCC-UHFFFAOYSA-N 0.000 description 11
- 229960001484 edetic acid Drugs 0.000 description 11
- 229910052911 sodium silicate Inorganic materials 0.000 description 11
- 229910000029 sodium carbonate Inorganic materials 0.000 description 10
- 235000017550 sodium carbonate Nutrition 0.000 description 10
- 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
- 150000002500 ions Chemical class 0.000 description 8
- 229910052708 sodium Inorganic materials 0.000 description 8
- 239000011734 sodium Substances 0.000 description 8
- 229910021532 Calcite Inorganic materials 0.000 description 7
- 238000005406 washing Methods 0.000 description 7
- 239000000377 silicon dioxide Substances 0.000 description 6
- 239000000243 solution Substances 0.000 description 6
- 229910052791 calcium Inorganic materials 0.000 description 5
- 235000021317 phosphate Nutrition 0.000 description 5
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 4
- 229910019142 PO4 Inorganic materials 0.000 description 4
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 4
- 150000007513 acids Chemical class 0.000 description 4
- 238000002474 experimental method Methods 0.000 description 4
- 239000011777 magnesium Substances 0.000 description 4
- 229910052749 magnesium Inorganic materials 0.000 description 4
- 150000003013 phosphoric acid derivatives Chemical class 0.000 description 4
- 229910052700 potassium Inorganic materials 0.000 description 4
- 239000011591 potassium Substances 0.000 description 4
- 239000000344 soap Substances 0.000 description 4
- 229920000742 Cotton Polymers 0.000 description 3
- 150000004645 aluminates Chemical class 0.000 description 3
- 239000002131 composite material Substances 0.000 description 3
- 230000003111 delayed effect Effects 0.000 description 3
- 239000011521 glass Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 235000012239 silicon dioxide Nutrition 0.000 description 3
- KKCBUQHMOMHUOY-UHFFFAOYSA-N sodium oxide Chemical compound [O-2].[Na+].[Na+] KKCBUQHMOMHUOY-UHFFFAOYSA-N 0.000 description 3
- 239000002689 soil Substances 0.000 description 3
- 239000000271 synthetic detergent Substances 0.000 description 3
- BHPQYMZQTOCNFJ-UHFFFAOYSA-N Calcium cation Chemical compound [Ca+2] BHPQYMZQTOCNFJ-UHFFFAOYSA-N 0.000 description 2
- QPCDCPDFJACHGM-UHFFFAOYSA-N N,N-bis{2-[bis(carboxymethyl)amino]ethyl}glycine Chemical compound OC(=O)CN(CC(O)=O)CCN(CC(=O)O)CCN(CC(O)=O)CC(O)=O QPCDCPDFJACHGM-UHFFFAOYSA-N 0.000 description 2
- 229910018828 PO3H2 Inorganic materials 0.000 description 2
- ABLZXFCXXLZCGV-UHFFFAOYSA-N Phosphorous acid Chemical compound OP(O)=O ABLZXFCXXLZCGV-UHFFFAOYSA-N 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- 150000001340 alkali metals Chemical class 0.000 description 2
- 229910001420 alkaline earth metal ion Inorganic materials 0.000 description 2
- 239000003945 anionic surfactant Substances 0.000 description 2
- 239000007864 aqueous solution Substances 0.000 description 2
- 229910052681 coesite Inorganic materials 0.000 description 2
- 229910052906 cristobalite Inorganic materials 0.000 description 2
- 238000004090 dissolution Methods 0.000 description 2
- 239000008187 granular material Substances 0.000 description 2
- 239000004615 ingredient Substances 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 229960003330 pentetic acid Drugs 0.000 description 2
- FGIUAXJPYTZDNR-UHFFFAOYSA-N potassium nitrate Chemical compound [K+].[O-][N+]([O-])=O FGIUAXJPYTZDNR-UHFFFAOYSA-N 0.000 description 2
- 235000019353 potassium silicate Nutrition 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 150000004760 silicates Chemical class 0.000 description 2
- 235000019795 sodium metasilicate Nutrition 0.000 description 2
- 159000000000 sodium salts Chemical class 0.000 description 2
- 235000019351 sodium silicates Nutrition 0.000 description 2
- GEHJYWRUCIMESM-UHFFFAOYSA-L sodium sulfite Chemical compound [Na+].[Na+].[O-]S([O-])=O GEHJYWRUCIMESM-UHFFFAOYSA-L 0.000 description 2
- 235000019832 sodium triphosphate Nutrition 0.000 description 2
- 229910052682 stishovite Inorganic materials 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 125000001273 sulfonato group Chemical group [O-]S(*)(=O)=O 0.000 description 2
- 239000012085 test solution Substances 0.000 description 2
- 238000004448 titration Methods 0.000 description 2
- 229910052905 tridymite Inorganic materials 0.000 description 2
- 239000010457 zeolite Substances 0.000 description 2
- 239000004711 α-olefin Substances 0.000 description 2
- BVKZGUZCCUSVTD-UHFFFAOYSA-M Bicarbonate Chemical class OC([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-M 0.000 description 1
- RPNUMPOLZDHAAY-UHFFFAOYSA-N Diethylenetriamine Chemical compound NCCNCCN RPNUMPOLZDHAAY-UHFFFAOYSA-N 0.000 description 1
- 239000004111 Potassium silicate Substances 0.000 description 1
- 101710194948 Protein phosphatase PhpP Proteins 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- VYTBPJNGNGMRFH-UHFFFAOYSA-N acetic acid;azane Chemical compound N.N.CC(O)=O.CC(O)=O.CC(O)=O.CC(O)=O VYTBPJNGNGMRFH-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000013019 agitation Methods 0.000 description 1
- 229910000318 alkali metal phosphate Inorganic materials 0.000 description 1
- 125000002648 azanetriyl group Chemical group *N(*)* 0.000 description 1
- ZRBROGSAUIUIJE-UHFFFAOYSA-N azanium;azane;chloride Chemical compound N.[NH4+].[Cl-] ZRBROGSAUIUIJE-UHFFFAOYSA-N 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 159000000007 calcium salts Chemical class 0.000 description 1
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 235000014113 dietary fatty acids Nutrition 0.000 description 1
- 235000011180 diphosphates Nutrition 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012851 eutrophication Methods 0.000 description 1
- 239000000194 fatty acid Substances 0.000 description 1
- 229930195729 fatty acid Natural products 0.000 description 1
- 150000004665 fatty acids Chemical class 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- VTHJTEIRLNZDEV-UHFFFAOYSA-L magnesium dihydroxide Chemical compound [OH-].[OH-].[Mg+2] VTHJTEIRLNZDEV-UHFFFAOYSA-L 0.000 description 1
- 239000000347 magnesium hydroxide Substances 0.000 description 1
- 229910001862 magnesium hydroxide Inorganic materials 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- HWGNBUXHKFFFIH-UHFFFAOYSA-I pentasodium;[oxido(phosphonatooxy)phosphoryl] phosphate Chemical compound [Na+].[Na+].[Na+].[Na+].[Na+].[O-]P([O-])(=O)OP([O-])(=O)OP([O-])([O-])=O HWGNBUXHKFFFIH-UHFFFAOYSA-I 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 1
- 239000010452 phosphate Substances 0.000 description 1
- XAEFZNCEHLXOMS-UHFFFAOYSA-M potassium benzoate Chemical compound [K+].[O-]C(=O)C1=CC=CC=C1 XAEFZNCEHLXOMS-UHFFFAOYSA-M 0.000 description 1
- 239000004323 potassium nitrate Substances 0.000 description 1
- 235000010333 potassium nitrate Nutrition 0.000 description 1
- NNHHDJVEYQHLHG-UHFFFAOYSA-N potassium silicate Chemical compound [K+].[K+].[O-][Si]([O-])=O NNHHDJVEYQHLHG-UHFFFAOYSA-N 0.000 description 1
- 229910052913 potassium silicate Inorganic materials 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 229910001948 sodium oxide Inorganic materials 0.000 description 1
- 235000010265 sodium sulphite Nutrition 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000013042 solid detergent Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000003643 water by type 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
- C11D3/02—Inorganic compounds ; Elemental compounds
- C11D3/04—Water-soluble compounds
- C11D3/10—Carbonates ; Bicarbonates
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/02—Inorganic compounds ; Elemental compounds
- C11D3/04—Water-soluble compounds
- C11D3/044—Hydroxides or bases
-
- 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
- C11D3/12—Water-insoluble compounds
- C11D3/1213—Oxides or hydroxides, e.g. Al2O3, TiO2, CaO or Ca(OH)2
-
- 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
- C11D3/12—Water-insoluble compounds
- C11D3/1233—Carbonates, e.g. calcite or dolomite
-
- 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
- C11D3/12—Water-insoluble compounds
- C11D3/124—Silicon containing, e.g. silica, silex, quartz or glass beads
- C11D3/1246—Silicates, e.g. diatomaceous earth
Definitions
- the invention relates to a builder composition for use in a detergent composition which is efficient in softening hard water which contains both calcium and magnesium ions.
- the invention also relates to a solid detergent composition comprising the builder composition of the invention.
- the invention relates to a builder composition.
- a builder composition is meant a composition that softens hard water.
- softening is meant a process where the amount of dissolved alkaline earth metal ions e.g. calcium and magnesium ions present in hard water is reduced to a desired low concentration. This low concentration of the dissolved alkaline earth metal ions is believed to enhance utilisation of the surfactant used for cleaning surfaces especially fabrics thereby providing better and more economical cleaning products to the consumer. This invention more particularly is applicable for washing laundry.
- Soaps which are alkali metal salts of fatty acids have been used for washing laundry.
- the efficiency of washing is lower when washed in hard water i.e. water having high levels of dissolved calcium and magnesium salts.
- the dissolved calcium and magnesium ions react very quickly with the alkali metal cation (sodium or potassium) of the soap leading to formation of calcium and magnesium soap which is insoluble in water and therefore washing in hard water gives poor cleaning.
- synthetic detergents which are alkali metal salts of long chain synthetic acids of petroleum origin, similar problems persist.
- Popular synthetic detergents are linear alkyl benzene sulphonates, alpha olefin sulphonates, and primary alkyl sulphates which belong to the class of anionic surfactants.
- Surfactants of the non-ionic, cationic, amphoteric and zwitterionic character are also known. Soiled laundry when washed with synthetic surfactants in hard water also gives poor cleaning as compared to cleaning with softer water.
- Compounds that react preferentially with the dissolved calcium and magnesium ions present in hard water known as detergency builders, have been used in detergent compositions.
- detergency builders are alkali metal carbonates, silicates, phosphates and structured compounds like zeolites.
- Sodium carbonate also known as soda ash is an inexpensive and widely used builder in detergent formulations.
- Premium detergents use builders like phosphates and/or zeolites since they have better building properties but are more expensive. There has been continuous work to develop more and more efficient and faster building systems using less expensive materials. Further, use of phosphates in detergents is believed by many to be responsible for the eutrophication of river and other natural waters systems. Thus a lot of effort has been put into developing faster and/or more efficient building systems using sodium carbonate as the main raw material.
- US3957695 (1976, Lever Bros. Co) discloses a detergent composition based on sodium carbonate as a detergency builder which also contains a finely divided calcium carbonate having a surface area of about 30 to 100 m 2 /g, together with a detergent active compound or mixture of compounds, which does not form during use, an insoluble calcium salt.
- the composition may also additionally comprise from about 5 to about 30% of sodium silicate, by weight of the composition.
- US4049586 (1977, Procter & Gamble Co.) describes a particulate detergent product consisting essentially of: (a) from about 0.5% to about 50% by weight of dry admixed calcium carbonate particles having a mean diameter of from about 0.01 to about 0.50 micron; (b) from about 5% to about 70% by weight of a builder selected from the group consisting of the alkali metal carbonates, bicarbonates, and sesquicarbonates and mixtures thereof; (c) from about 5% to about 70% by weight of alkali metal pyrophosphate; and (d) from about 5% to about 40% by weight of a water-soluble detergent selected from the group consisting of anionic, nonionic, zwitterionic, and ampholytic detergents and mixtures thereof.
- the composition may also additionally comprise from about 5 to about 40% of sodium silicate, by weight of the composition.
- detergent compositions which comprise precipitating builders like sodium carbonate and sodium silicate along calcium carbonate have been known and used for some time now.
- compositions of the prior art does not give as fast and as complete a building as would be desirable in order to deliver enhanced cleaning of consumer fabrics when they are washed in hard water.
- the present inventors have determined that when two precipitating builders viz. alkali metal carbonate and alkali metal silicate are used along with a seed for precipitating calcium carbonate, the inclusion of a selective class of building enhancers provides for better building, both in the extent, as well as the rate of reduction of dissolved calcium ions as well as in dissolved magnesium ions, which help in cleaning of soiled fabrics, when washed in hard water.
- a builder composition comprising: (i) two precipitating builders which are (a) an alkali metal carbonate and (b) an alkali metal silicate; (ii) calcium carbonate; and
- a building enhancer which is a compound capable of precipitating magnesium 5 ions from hard water selected from the group comprising alkali or alkaline earth metal oxides or hydroxides and alkali metal aluminate, zincate or titanate.
- a detergent composition comprising a surfactant and a builder composition according to the first0 aspect of the present invention.
- the invention provides for a method for softening of hard water especially for cleaning of soiled fabrics.
- the composition is more effective when the input hard water has5 both dissolved calcium and dissolved magnesium ions.
- the method comprises dissolving/dispersing four materials in water viz. (i) an alkali metal carbonate; (ii) a alkali metal silicate (iii) calcium carbonate and (iv) a building enhancer which is a compound capable of precipitating magnesium ions from water selected from the group comprising alkali or alkaline earth metal oxides or hydroxides and alkali metal o aluminate, zincate or titanate
- Preferred building enhancers are hydroxides of sodium or potassium; calcium oxide; calcium hydroxide; and aluminate, zincate, and titanate of sodium or potassium. More preferred building enhancers are calcium oxide, calcium hydroxide or alkali 5 metal aluminate or zinctate.
- the building enhancer is preferably present in the range of 0.1 to 7.5%, more preferably 0.1 to 5% and most preferably from 1 to 3% by weight of the builder composition. Without wishing to be bound by theory, it is believed that the inclusion of these selective building enhancers helps in the removal of Mg ions. It is believed that the presence of the building enhancers maintains the required 0 solution pH leading to magnesium ion removal by way of precipitation as magnesium hydroxide.
- the builder composition comprises a sequestrant selected from amino polycarboxylic acid, amino polyphosphonic acid, nitrilo triacetic acid or salts thereof.
- Amino polycarboxylic acids are compounds that have the formula: H 2 -COOH
- EDTA ethylene diamine tetraacetic acid
- the compound is diethylene triamine pentaacetic acid.
- Amino polyphosphonic acids are compounds that have the formula: H 2 -PO 3 H 2
- the compound is diethylene thamine pentamethyl phosphonic acid. This compound is available under the brand name DEQUEST 206TM.
- Nitrilo thacetic acid has the chemical formula C ⁇ HgNO ⁇ and is also known as amino triacetic acid.
- preferred sequestrants are sodium or potassium salt of ethylenediamine tetraacetic acid, diethylenetriamine pentaacetic acid, ethylenediamine tetramethyl phosphonic acid or diethylenetriamine pentamethyl phosphonic acid.
- the sequestrant is thus preferably present in a delayed release form in order to achieve the desired dissolution profile.
- the inventors have determined that one way to achieve this is to incorporate the sequestrant in a defined particle size range i.e. 0.3 to 3 mm more preferably in the range of 0.75 to 2 mm.
- the builder composition comprises a precipitating builder that is alkali metal silicate.
- the alkali metal silicate is preferably sodium silicate or potassium silicate, more preferably sodium silicate.
- Sodium silicate is a colorless compound of oxides of sodium and silica. It has a range of chemical formula varying in sodium oxide (Na2 ⁇ ) and silicon dioxide or silica (Si ⁇ 2) contents. It is soluble in water and it is prepared by reacting silica (sand) and sodium carbonate at a high temperature ranging from 1200 to 1400°C. Aqueous solution of sodium silicate is called water glass.
- Sodium silicates varying in ratio of Na2O:SiO2 from 1 :1.6 to 1 :4 are known as colloidal silicates.
- the preferred compound to be used in the composition of the invention is alkaline sodium silicate or sodium meta silicate. This has a concentration in water in the range of 27 - 39% and a Na2O:SiO2 ratio in the range of 3.0 to 3.5.
- the alkali metal silicate is preferably present in the range of 1 % to 40% by weight of the builder composition.
- the builder composition of the invention comprises another precipitating builder that is alkali metal carbonate.
- the alkali metal is preferably sodium or potassium, sodium being preferred.
- the most preferred alkali metal carbonate is sodium carbonate.
- the alkali metal carbonate is preferably present in the range of 5 to 70%, more preferably in the range of 10 - 50% by weight of the builder composition.
- the builder composition of the invention comprises a seed for precipitating calcium carbonate that is calcium carbonate.
- Calcium carbonate may be calcite, or aragonite, most preferably calcite.
- Calcite is preferably high surface area calcite.
- the calcium carbonate has a surface area greater than 18 m 2 /g, more preferably greater then 30 m 2 /g, most preferably greater than 60 m 2 /g.
- Calcium carbonate is preferably present in the range of 5 to 40 % by weight of the builder composition.
- the builder composition of the invention ensures that the Ca 2+ ion concentration in input hard water reduces from about 140 ppm to about less than 1 ppm in about less than 2 minutes and in optimal conditions to less than 0.3 ppm in less than 2 minutes.
- the builder composition of the invention also ensures that the Mg 2+ ion concentration in input hard water reduces from about 40 ppm to less than about 6 ppm in less than 2 minutes, and in optimal conditions to less than about 2 ppm in less than 2 minutes.
- the method of the invention has the advantage that it requires significantly low amount of conventional sequestering builders like water soluble phosphates.
- the composition of the invention is substantially free of water soluble phosphate builders.
- the builder composition of the invention comprises a seed capable of precipitating magnesium ions. Examples of such seeds are magnesium carbonate and dolomite.
- a preferred aspect of the invention provides for magnesium carbonate or dolomite to be present in 5 to 40% by weight of the builder composition.
- a detergent composition comprising a builder composition of the first aspect of the invention and a surfactant selected from any one of the anionic, non-ionic, cationic, zwitterionic or amphoteric class.
- the invention also provides for a method of cleaning a fabric comprising contacting the soiled fabric with water which has been built by the builder composition of the invention, the water additionally comprising a surfactant.
- Suitable anionic synthetic detergents are linear alkyl benzene sulphonates, alpha olefin sulphonates and primary alkyl sulphates.
- Linear alkyl benzene sulphonates are ideally suited since they are widely and inexpensively available and have very good surfactant action.
- Sodium or magnesium salts of LAS acids may be used.
- the method of the invention works better when the surfactant is delivered in a delayed mode in water with respect to the precipitating builders and the calcium carbonate. It is preferred that the surfactant is in dissolved state 15 to 600 seconds, more preferably 30 to 480 seconds, further more preferably 45 to 300 seconds after the water has been built by the method of the invention.
- the present inventors prefer the surfactant to be magnesium salt of linear alkyl benzene sulphonic acid.
- a way to ensure delayed dissolution of the surfactant in water is to include the magnesium salt of linear alkyl benzene sulphonic acid in a particle size in the range of 0.1 to 2 mm.
- the builder composition is preferably present in the range of 5 to 80% by weight of the detergent composition.
- the surfactant is preferably present in 5 to 90%, preferably 10 to 50%, more preferably 15 to 35% by weight of the detergent composition.
- the detergent composition is preferably in the solid form e.g. in the powder, granule, bar or tablet form. The more preferred form of the detergent composition is the powder or granule form.
- the alkali metal carbonate is preferably present in 10 to 70%, more preferably 15 to 60%, and further more preferably 25 to 50% by weight of the detergent composition.
- the calcium carbonate is preferably present in 3 to 50%, more preferably from 5 to 40%, most preferably from 10 to 30% by weight of the detergent composition.
- the method involved titration with EDTA (di sodium salt of elthylene diamine tetra acetic acid) using EBT (Erochrome Black - T) as indicator.
- EBT Erochrome Black - T
- About 2 ml of the test solution was pipetted out into a 150 ml conical flask.
- the solution was diluted using about 10 ml water.
- To this was added 5 ml of ammonia-ammonium chloride pH 10 buffer.
- About 35 mg of 1 % EBT in potassium nitrate solution was added.
- a wine red colour was obtained.
- a standardized EDTA solution was added dropwise from a burette with constant stirring. As more EDTA was added the colour gradually changed from wine red to violet. The end point was identified by a sudden colour change from violet to blue.
- the total (of calcium and magnesium) ion concentration was calculated using the formula:
- Total ion concentration vol of EDTA * strength of EDTA/ vol of test solution taken.
- Total ion concentration in FH (Total ion concentration in ppm)/4 for Ca 2+
- Total ion concentration in FH (Total ion concentration in ppm)/2.4 for Mg 2+
- Table-1 indicates that better building, both in terms of lower final hardness of water and faster kinetics of building, are obtained when a builder composition of the invention is used as compared to builder composition of the prior art.
- Example 2 Experiments using a builder composition of Example 2 were carried out as shown in Table -1 except that additionally a sequestrant viz. ethylene diamine tetraacetic acid (EDTA) was used either along with the other ingredients or at some delay with respect to the other ingredients. The results are summarized in Table - 2 along with the result for Example - 2 for comparison.
- a sequestrant viz. ethylene diamine tetraacetic acid (EDTA) was used either along with the other ingredients or at some delay with respect to the other ingredients.
- EDTA ethylene diamine tetraacetic acid
- Example 9 is a detergent composition as per the invention.
- Example 10 is a detergent composition similar to Example 9 but without the building enhancer included.
- Examples 11 is product "Rin Advanced" which is one of the best sodium carbonate based detergent product available in the Indian market.
- the compositions of examples 9 and 10 are given in Table-3. Table - 3
- MgLAS Magnesium salt of linear alkyl benzene sulphonic acid
- NaLAS Sodium salt of linear alkyl benzene sulphonic acid
- ForcalU is a commercially available calcite having surface area of 18 - 20 m 2 /g.
- STPP sodium tripolyphosphate
- Others refers to mainly fillers which is sodium chloride, sodium sulfite, and moisture.
- Table-4 indicates that improved cleaning is obtained with a detergent composition on inclusion of a builder enhancer of the invention. Further the composition of the invention provides better cleaning as compared to one of the best commercially available product of this class.
- the invention thus provides for a builder composition which gives faster building as compared to methods available in the present state of the art especially when the hard water contains both calcium and magnesium ions. Consequently the soiled fabrics are cleaned better.
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- 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)
Abstract
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
MX2011001665A MX2011001665A (en) | 2008-08-14 | 2009-07-16 | Builder composition. |
EA201100348A EA017243B1 (en) | 2008-08-14 | 2009-07-16 | Builder detergent composition |
CN2009801315839A CN102124091B (en) | 2008-08-14 | 2009-07-16 | Builder composition |
BRPI0917258A BRPI0917258A2 (en) | 2008-08-14 | 2009-07-16 | reinforcing composition and detergent composition |
ZA2011/00431A ZA201100431B (en) | 2008-08-14 | 2011-01-17 | Builder composition |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IN1723/MUM/2008 | 2008-08-14 | ||
IN1723MU2008 | 2008-08-14 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2010018043A1 true WO2010018043A1 (en) | 2010-02-18 |
Family
ID=41064552
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2009/059134 WO2010018043A1 (en) | 2008-08-14 | 2009-07-16 | Builder composition |
Country Status (12)
Country | Link |
---|---|
EP (1) | EP2154233B1 (en) |
CN (1) | CN102124091B (en) |
AR (1) | AR073026A1 (en) |
AT (1) | ATE482264T1 (en) |
BR (1) | BRPI0917258A2 (en) |
CL (1) | CL2011000310A1 (en) |
DE (1) | DE602008002756D1 (en) |
EA (1) | EA017243B1 (en) |
ES (1) | ES2353470T3 (en) |
MX (1) | MX2011001665A (en) |
WO (1) | WO2010018043A1 (en) |
ZA (1) | ZA201100431B (en) |
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WO2011147646A1 (en) * | 2010-05-24 | 2011-12-01 | Unilever Nv | Builder composition and process for building |
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EP3892708A1 (en) | 2020-04-06 | 2021-10-13 | Henkel AG & Co. KGaA | Cleaning compositions comprising dispersin variants |
WO2022074037A2 (en) | 2020-10-07 | 2022-04-14 | Novozymes A/S | Alpha-amylase variants |
WO2022171780A2 (en) | 2021-02-12 | 2022-08-18 | Novozymes A/S | Alpha-amylase variants |
WO2022268885A1 (en) | 2021-06-23 | 2022-12-29 | Novozymes A/S | Alpha-amylase polypeptides |
WO2024131880A2 (en) | 2022-12-23 | 2024-06-27 | Novozymes A/S | Detergent composition comprising catalase and amylase |
Also Published As
Publication number | Publication date |
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CL2011000310A1 (en) | 2011-08-05 |
AR073026A1 (en) | 2010-10-06 |
DE602008002756D1 (en) | 2010-11-04 |
EP2154233B1 (en) | 2010-09-22 |
ZA201100431B (en) | 2012-03-28 |
ATE482264T1 (en) | 2010-10-15 |
CN102124091B (en) | 2013-02-13 |
EA201100348A1 (en) | 2011-08-30 |
EA017243B1 (en) | 2012-10-30 |
CN102124091A (en) | 2011-07-13 |
BRPI0917258A2 (en) | 2015-11-10 |
ES2353470T3 (en) | 2011-03-02 |
EP2154233A1 (en) | 2010-02-17 |
MX2011001665A (en) | 2011-03-25 |
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