WO2005118767A1 - Concentre en pate pouvant former des solutions detergentes et de lavage, alcalines et stables (pas de separation) - Google Patents
Concentre en pate pouvant former des solutions detergentes et de lavage, alcalines et stables (pas de separation) Download PDFInfo
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- WO2005118767A1 WO2005118767A1 PCT/EP2004/050963 EP2004050963W WO2005118767A1 WO 2005118767 A1 WO2005118767 A1 WO 2005118767A1 EP 2004050963 W EP2004050963 W EP 2004050963W WO 2005118767 A1 WO2005118767 A1 WO 2005118767A1
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- WIPO (PCT)
- Prior art keywords
- concentrate
- general formula
- mpas
- whole
- concentrate according
- Prior art date
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- 239000012141 concentrate Substances 0.000 title claims abstract description 98
- 239000003599 detergent Substances 0.000 title claims abstract description 31
- 238000004140 cleaning Methods 0.000 title claims abstract description 30
- 238000005406 washing Methods 0.000 claims abstract description 19
- 150000001875 compounds Chemical class 0.000 claims abstract description 16
- 125000000217 alkyl group Chemical group 0.000 claims abstract description 12
- 125000004432 carbon atom Chemical group C* 0.000 claims abstract description 10
- 238000000034 method Methods 0.000 claims abstract description 10
- 238000005374 membrane filtration Methods 0.000 claims abstract description 9
- 239000002351 wastewater Substances 0.000 claims abstract description 9
- 239000004753 textile Substances 0.000 claims abstract description 7
- 230000009974 thixotropic effect Effects 0.000 claims abstract description 7
- 125000003342 alkenyl group Chemical group 0.000 claims abstract description 6
- 238000007046 ethoxylation reaction Methods 0.000 claims abstract description 6
- 238000007865 diluting Methods 0.000 claims abstract description 5
- 230000001747 exhibiting effect Effects 0.000 claims abstract description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 19
- 229910019142 PO4 Inorganic materials 0.000 claims description 16
- 239000000203 mixture Substances 0.000 claims description 14
- 235000021317 phosphate Nutrition 0.000 claims description 14
- 150000003013 phosphoric acid derivatives Chemical class 0.000 claims description 9
- 238000001223 reverse osmosis Methods 0.000 claims description 4
- 235000019832 sodium triphosphate Nutrition 0.000 claims description 4
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 claims description 3
- 239000010452 phosphate Substances 0.000 claims description 3
- 238000000108 ultra-filtration Methods 0.000 claims description 3
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 2
- 229920000388 Polyphosphate Polymers 0.000 claims description 2
- GSEJCLTVZPLZKY-UHFFFAOYSA-N Triethanolamine Chemical compound OCCN(CCO)CCO GSEJCLTVZPLZKY-UHFFFAOYSA-N 0.000 claims description 2
- 229910052783 alkali metal Inorganic materials 0.000 claims description 2
- 150000001340 alkali metals Chemical class 0.000 claims description 2
- 229910052784 alkaline earth metal Inorganic materials 0.000 claims description 2
- 150000001342 alkaline earth metals Chemical class 0.000 claims description 2
- 150000001768 cations Chemical class 0.000 claims description 2
- 125000002791 glucosyl group Chemical group C1([C@H](O)[C@@H](O)[C@H](O)[C@H](O1)CO)* 0.000 claims description 2
- 229910052739 hydrogen Inorganic materials 0.000 claims description 2
- 239000001257 hydrogen Substances 0.000 claims description 2
- 125000002768 hydroxyalkyl group Chemical group 0.000 claims description 2
- 229910052751 metal Inorganic materials 0.000 claims description 2
- 239000002184 metal Substances 0.000 claims description 2
- 125000005341 metaphosphate group Chemical group 0.000 claims description 2
- 239000001205 polyphosphate Substances 0.000 claims description 2
- 235000011176 polyphosphates Nutrition 0.000 claims description 2
- 238000002360 preparation method Methods 0.000 claims description 2
- 239000011734 sodium Substances 0.000 claims description 2
- UNXRWKVEANCORM-UHFFFAOYSA-I triphosphate(5-) Chemical compound [O-]P([O-])(=O)OP([O-])(=O)OP([O-])([O-])=O UNXRWKVEANCORM-UHFFFAOYSA-I 0.000 claims description 2
- HEMHJVSKTPXQMS-UHFFFAOYSA-M sodium hydroxide Inorganic materials [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 67
- 235000011121 sodium hydroxide Nutrition 0.000 description 32
- 239000000243 solution Substances 0.000 description 16
- 239000012459 cleaning agent Substances 0.000 description 7
- 239000000654 additive Substances 0.000 description 4
- 239000000975 dye Substances 0.000 description 4
- 239000011888 foil Substances 0.000 description 4
- 238000000746 purification Methods 0.000 description 4
- 239000007787 solid Substances 0.000 description 4
- 238000003756 stirring Methods 0.000 description 4
- 238000003860 storage Methods 0.000 description 4
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 3
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 3
- 229910052910 alkali metal silicate Inorganic materials 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 239000002736 nonionic surfactant Substances 0.000 description 3
- 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 2
- KKCBUQHMOMHUOY-UHFFFAOYSA-N Na2O Inorganic materials [O-2].[Na+].[Na+] KKCBUQHMOMHUOY-UHFFFAOYSA-N 0.000 description 2
- 239000004115 Sodium Silicate Substances 0.000 description 2
- 239000013543 active substance Substances 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Chemical compound [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 description 2
- 238000002425 crystallisation Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 239000003205 fragrance Substances 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 239000003112 inhibitor Substances 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 238000010008 shearing Methods 0.000 description 2
- 235000019795 sodium metasilicate Nutrition 0.000 description 2
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 2
- 229910052911 sodium silicate Inorganic materials 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 239000013042 solid detergent Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 description 1
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 description 1
- 102000004190 Enzymes Human genes 0.000 description 1
- 108090000790 Enzymes Proteins 0.000 description 1
- VMHLLURERBWHNL-UHFFFAOYSA-M Sodium acetate Chemical compound [Na+].CC([O-])=O VMHLLURERBWHNL-UHFFFAOYSA-M 0.000 description 1
- 239000012190 activator Substances 0.000 description 1
- 239000004480 active ingredient Substances 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 229910001854 alkali hydroxide Inorganic materials 0.000 description 1
- 150000008044 alkali metal hydroxides Chemical class 0.000 description 1
- 239000000908 ammonium hydroxide Substances 0.000 description 1
- 235000011114 ammonium hydroxide Nutrition 0.000 description 1
- 229940043379 ammonium hydroxide Drugs 0.000 description 1
- 229940040526 anhydrous sodium acetate Drugs 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 239000007844 bleaching agent Substances 0.000 description 1
- 239000001110 calcium chloride Substances 0.000 description 1
- 229910001628 calcium chloride Inorganic materials 0.000 description 1
- 235000011148 calcium chloride Nutrition 0.000 description 1
- 235000011132 calcium sulphate Nutrition 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 150000004649 carbonic acid derivatives Chemical class 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 150000003841 chloride salts Chemical class 0.000 description 1
- 150000001805 chlorine compounds Chemical class 0.000 description 1
- 235000013365 dairy product Nutrition 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 239000003995 emulsifying agent Substances 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 230000002209 hydrophobic effect Effects 0.000 description 1
- 150000004679 hydroxides Chemical class 0.000 description 1
- 238000010348 incorporation Methods 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- HCWCAKKEBCNQJP-UHFFFAOYSA-N magnesium orthosilicate Chemical compound [Mg+2].[Mg+2].[O-][Si]([O-])([O-])[O-] HCWCAKKEBCNQJP-UHFFFAOYSA-N 0.000 description 1
- 239000000391 magnesium silicate Substances 0.000 description 1
- 229910052919 magnesium silicate Inorganic materials 0.000 description 1
- 235000019792 magnesium silicate Nutrition 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- -1 phosphor compound Chemical class 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 159000000001 potassium salts Chemical class 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000007790 solid phase Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 150000003467 sulfuric acid derivatives Chemical class 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
- C11D3/044—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
- C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
- C11D1/66—Non-ionic compounds
- C11D1/825—Mixtures of compounds all of which are non-ionic
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D17/00—Detergent materials or soaps characterised by their shape or physical properties
- C11D17/0008—Detergent materials or soaps characterised by their shape or physical properties aqueous liquid non soap compositions
- C11D17/003—Colloidal solutions, e.g. gels; Thixotropic solutions or pastes
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/02—Inorganic compounds ; Elemental compounds
- C11D3/04—Water-soluble compounds
- C11D3/08—Silicates
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
- C11D1/66—Non-ionic compounds
- C11D1/722—Ethers of polyoxyalkylene glycols having mixed oxyalkylene groups; Polyalkoxylated fatty alcohols or polyalkoxylated alkylaryl alcohols with mixed oxyalkylele groups
Definitions
- Paste-like concentrate suitable to form stable (non separating) alkaline cleaning and detergent solutions
- the present invention refers to a paste-like thixotropic detergent or cleaning concentrate which is able to form a stable (non separating) alkaline parent lye for use as cleansing agent or detergent, preferably for the machine cleaning of textiles, a parent lye containing said concentrate and to a method for washing textiles using said concentrate in diluted form as a parent lye.
- the single washing machines are centrally supplied with the solution of a detergent or cleaning agent, the so called parent lye, to maximize the capacity of the laundry and the machinery and to optimise the course of the process.
- the central supply proceeds using a parent lye which contains 5 to 15 wt.-% of the cleaning agent or detergent and which is distributed from a reservoir to the single washing machines, in most cases without further diluting.
- a cleaning agent or detergent suitable for use in industrial laundries must be capable to form a stable (non separating) alkaline cleaning or detergent solution to ensure a constantly excellent cleaning or washing performance.
- the object of the present invention is to provide a cleaning or detergent concentrate which on one hand forms a stable paste as such and on the other hand also forms a stable (non separating) alkaline cleaning or detergent solution when dissolved in water. Additionally, it should be possible to purify waste water resulting from the cleaning or washing process and containing said concentrate on common membrane filtration units, especially ones using one or more reverse osmosis steps, without blocking the membrane or causing other damages.
- a paste-like, thixotropic, alkaline detergent or cleaning concentrate comprising a) at least one first component selected from one or more compounds represented by the general formula (I), R -(OC 2 H 4 ) n -(OC 3 H 6 ) m -OH (I) wherein R 1 represents an unbranched or branched alkyl or alkenyl group having 4 to 8, preferably 5 to 7, carbon atoms, and wherein the sum of the average degree of ethoxylation n and propoxylation m ranges from 1 to 9, preferably from 3 to 7, with one of n and m optionally being 0, and b) at least one second component selected from one or more compounds represented by the general formula (II),
- thixotropic means that the concentrate exhibits such a structural viscosity that it does not flow under the influence of gravity.
- the dosing of thixotropic composition is then preferably performed by shearing the concentrate to reduce viscosity at first and afterwards dosing and transmitting the free-flow concentrate using for example a feed pump.
- the above mentioned viscosity values refer to read- ing after a detection time of 3 minutes to take the time dependency of the thixotropic effect into account.
- the decrease of viscosity on shear is to a great extent reversible, i. e. after having stopped the shear the concentrate will return to its original physical condition without separation.
- the viscosity may change while an equilibrium adjusts within the concentrate after its preparation. Accordingly, viscosity values measured during the manufacturing process or directly afterwards may falsify the result. Thus, the viscosities are determined after the equilibrium is adjusted and the final viscosity is reached. Storing for one month is generally sufficient to obtain reliable values.
- a mixture of two or more compounds represented by general formula II is used wherein R 2 is C10, C13 and/or C12-14, o is 3, 4 and/or 5 and p is 0 or 5. In these cases it is especially preferred to use at least one compound represented by the general formula I wherein R 1 is C6, n is 5 and m is 0.
- the preferred amount of the com ⁇ ound(s) represented by the general formula (I) is in the range of from 0,5 to 15 wt.-%, preferably 1 to 10 wt.-% and most preferred from 2 to 5 wt.-% based on the whole concentrate.
- the one or more compounds represented by the general formula (II) should be present in an amount of from 5 to 90 wt.-%, preferably from 15 to 70 wt.-% and most pre- ferred from 20 to 50 wt.-% based on the whole concentrate.
- the alkalinity may be achieved using any compound known in the state of the art which when dissolved in water shows an alkaline reaction, like for example alkali hydroxides, especially sodium or potassium hydroxide, ammoniumhydroxide, alkaline-earth hydrox- ides, alkali carbonates, like soda or mixtures thereof.
- alkali hydroxides especially sodium or potassium hydroxide, ammoniumhydroxide, alkaline-earth hydrox- ides, alkali carbonates, like soda or mixtures thereof.
- the preferred alkalinity generating compound is represented by soda.
- amorphous alkali silicate may be added as alkalinity source.
- Sodium meta silicate with a ratio of Na 2 O : Si0 2 in the range of 1 : 0,8 to 1 : 1 ,3, preferably 1 : 1 is especially appropriate.
- one or more phosphates can be used instead of or in addition to the amorphous alkali silicate.
- the phosphates are preferably selected from at least one of primary ortho- phosphates represented by the general formula M'H 2 P0 4 or M"(H 2 P0 4 ) 2 , secondary ortho- phosphates represented by the general formula M' 2 HP0 4 or M ⁇ HPO 4 or tertiary orthophos- phates represented by the general formula M' 3 PO or M" 3 (P0 ) 2 , as well as condensed phosphates derived therefrom, the so called meta phosphates and poly phosphates, with M being a metal cation , M 1 preferably being an alkali metal and M" preferably being an alkaline-earth metal.
- the phosphate is a tripolyphosphate, preferably sodium tripolyphosphate (NasP ⁇ Oio).
- the content of the alkalinity source is chosen such that the pH value of a use solution containing the inventive concentrate should advantageously be in the range of from 9 to 13, preferably 10 to1 .
- the total amount of the alkalinity source pref- erably ranges from 25 to 70 wt.-%, more preferably from 30 to 60 wt.-% and most preferred from 50 to 58 wt.-%, based on the whole concentrate.
- soda is used in amounts of from 15 to 60 wt.-%, preferably 25 to 55 wt.-%.
- the amount of amorphous alkali silicate, especially sodium meta silicate, with the above mentioned Na 2 0 : Si0 2 ratio preferably ranges from 10 to 20 wt.-%, and especially is 15 wt.-%.
- the phosphor compound should be contained in an amount of at most 40 wt.-%, preferably in an amount of 30 wt.-% or below, especially in a range of from 20 to 30 wt.-% based on the whole concentrate.
- the inventive concentrate may additionally comprise at least 1 wt.-% based on the whole concentrate of at least one alkanolamine.
- the sum of alkanolamines contained in the concentrate is contained in an amount above 2 wt.-% and lies within the range of from 2 to 10 wt.-%, and in particular from 3 to 5 wt.-%, based on the whole concentrate.
- At least one of the alkanolamines is represented by the general formula (III),
- R 3 represents a hydroxyalkyl group having 1 to 6 carbon atoms, and wherein R 4 and R 5 independent from each other are identical with R 3 or represent hydrogen.
- the most suitable alkanolamines are represented by mono-, di- or triethanolamine or mixtures thereof.
- alkanolamines may function as solutizer and thus improve the homogeneity of the inventive concentrate when diluted to form the use solution, for example the parent lye.
- alkanolamines additionally represent an alkalinity source. As they are liquid they help to avoid the use of water to provide the paste-like concentrate.
- the paste-like concentrate comprises a solid phase which is dispersed in a liquid phase as homogeneous as possible.
- the composition according to the present invention forming the above concentrate enables the water content to be reduced to an amount preferably of less than 3 wt.-%, more preferred less than 2 wt.-%, and most preferred less than 1 wt-% based on the whole concentrate.
- Said water content is meant to refer to free water only. Additional water may be present in form of water of crystallisation or water of constitution.
- the concentrate may additionally comprise dehydration agents, for example in form of salts which bind water of crystallisation like anhydrous sodium acetate, calcium sulfate, calcium chloride, sodium hydroxide, magnesium silicate or metal oxides like CaO, MgO, P 4 O ⁇ 0 or Al 2 0 3 or mixtures thereof.
- dehydration agents for example in form of salts which bind water of crystallisation like anhydrous sodium acetate, calcium sulfate, calcium chloride, sodium hydroxide, magnesium silicate or metal oxides like CaO, MgO, P 4 O ⁇ 0 or Al 2 0 3 or mixtures thereof.
- the concentrate may additionally contain at least one alkyl polyglucoside having from 8 to 14 carbon atoms in the alkyl group and from 1 to 5 glucose moieties.
- the amount of the alkyl polyglucosid should be in the range of from 1 to 6 wt.%, preferably from 1,5 to 3 wt.%.
- Such compounds have a strongly hydrophobic alkyl moiety and a strongly hy- drophilic glucosid moiety and, accordingly, are very much appropriate to function as stabilizer of the paste-like concentrate.
- the concentrate may comprise one or more further additives generally used in cleaning agents or detergents like further soil release agents, cobuilders, optical brighteners, dyes and fragrances, small quantities of neutral salts such as sulfates and chlorides in the form of their sodium or potassium salts, provided that these do not impair the positive properties.
- suitable additives to the product may be enzymes, foam regulators, redeposition inhibitors, soil release agents, bleaching agents from the class of per com- pounds, which are conventionally used together with activators, active chlorine compounds as well as dyes, dye transfer inhibitors or dye intensifiers and fragrances.
- liquid components should be pre-mixed before the solid components and further ingredients are incorporated.
- particulate solids are not fine enough to provide a homogeneous, paste-like concentrate, they may be grinded one or more times before incorporation.
- the inventive concentrate as described above can be used to prepare a stable parent lye.
- the parent lye contains the inventive concentrate in amounts of from 0,5 to 25 wt.-%, preferably 5 to 15 wt.-% based on the detergent solution.
- the concentrate is dissolved in pure water to form the parent lye.
- further additives like hydrophilic auxiliaries, are dissolved.
- the main emphasis for the usage of the concentrate or the solution containing the inventive concentrate, respectively, is on laundry detergents, it may as well be applied as cleaning agent in warewashing, clean in place cleaners and sanitizers, food an dairy formulations and other applications in which such alkaline cleaning solutions may be applied.
- the solution containing the concentrate is used as parent lye for the industrial machine cleaning of textiles.
- the present invention provides a method for washing textiles comprising one step in which a parent lye is prepared by diluting the concentrate according to claims 1 to 12 such that the parent lye contains the concentrate in an amount of from 0,5 to 25 wt.-%, preferably of from 5 to 15 wt.-% based on the detergent solution.
- the concentrate according to the invention is metered from a storage reservoir using a metering equipment which is suitable to meter paste-like substances by influence of shearing force.
- An appropriate equipment is described for example in WO 95/09263.
- the required amount of the concentrate which then is free-flow is transmitted into a further tank in which it is combined and dissolved with the appropriate amount of solvent, which generally is water and may as well contain further additives or auxiliaries.
- the mixture is advantageously agitated.
- the resulting parent lye may than either directly be distributed to the single washing machines or stored for usage in washing cycles to be performed later.
- the parent lye is shortly agitated after having been stored before it is distributed to the single washing machines to guarantee a homogeneous distribution of the active agent in the parent lye.
- the parent lye may be further diluted depending on the desired detergent concentration.
- the paste-like concentrate for example to wrap it in foil bags. Since the concentrate essentially does not contain water the concentrate may be wrapped in foils which are water soluble. In this case when preparing the parent lye the required number of foil bags is poured into a tank, the appropriate amount of water is added and after the foils are dissolved by the water the parent lye may be obtained by stirring.
- a further advantage resulting from the composition of the concentrate is that it allows the purification of the waste water which is accumulated during the cleaning or wash- ing process using common membrane filtration units without blocking them or causing other damages.
- the membrane filtration may as well comprise at least one ultra filtration and/or reverse osmosis step. Said purification processes succeed best with a concentrate according to the invention which contains one or more phosphates.
- the cited values refer to wt.-%, based on the whole concentrate.
- the paste-like concentrates exhibited good storage stabilities, i. e. they did not separate over a period of at least 12 months, provided stable parent lyes when being stirred and optionally warmed up to 30-40°C, i. e. they essentially did not separate over a period of at least 1 week, when diluted in water in an amount such that the content of the concentrate was 10 wt.-% based on the parent lye. Generally, slightly stirring was sufficient to obtain a stable parent lye. Moreover, the concentrate when used as a 10 wt.-% aqueous parent lye exhibited excellent cleaning properties.
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- Chemical & Material Sciences (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)
- Inorganic Chemistry (AREA)
- Dispersion Chemistry (AREA)
- Detergent Compositions (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT04741679T ATE423188T1 (de) | 2004-05-28 | 2004-05-28 | Geeignetes pastenförmiges konzentrat zur herstellung von stabilen, sich nicht entmischenden alkalischen reinigungs- und waschmittellösungen |
PCT/EP2004/050963 WO2005118767A1 (fr) | 2004-05-28 | 2004-05-28 | Concentre en pate pouvant former des solutions detergentes et de lavage, alcalines et stables (pas de separation) |
DE602004019580T DE602004019580D1 (de) | 2004-05-28 | 2004-05-28 | Geeignetes pastenförmiges konzentrat zur herstellung von stabilen, sich nicht entmischenden alkalischen reinigungs- und waschmittellösungen |
EP04741679A EP1751265B1 (fr) | 2004-05-28 | 2004-05-28 | Concentre en pate pouvant former des solutions detergentes et de lavage, alcalines et stables (pas de separation) |
DK04741679T DK1751265T3 (da) | 2004-05-28 | 2004-05-28 | Pastalignende koncentrat, der er egnet til fremstilling af stabile (ikke separerende) alkaliske rengörings- og detergentoplösninger |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/EP2004/050963 WO2005118767A1 (fr) | 2004-05-28 | 2004-05-28 | Concentre en pate pouvant former des solutions detergentes et de lavage, alcalines et stables (pas de separation) |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2005118767A1 true WO2005118767A1 (fr) | 2005-12-15 |
Family
ID=34957815
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2004/050963 WO2005118767A1 (fr) | 2004-05-28 | 2004-05-28 | Concentre en pate pouvant former des solutions detergentes et de lavage, alcalines et stables (pas de separation) |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP1751265B1 (fr) |
AT (1) | ATE423188T1 (fr) |
DE (1) | DE602004019580D1 (fr) |
DK (1) | DK1751265T3 (fr) |
WO (1) | WO2005118767A1 (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8287658B2 (en) | 2009-06-02 | 2012-10-16 | Ecolab Usa Inc. | Biodegradable surfactant blend |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1995029282A1 (fr) * | 1994-04-27 | 1995-11-02 | Henkel-Ecolab Gmbh & Co. Ohg | Procede et dispositif pour vider un recipient rempli d'une pate tixotrope |
US6187739B1 (en) * | 1995-09-21 | 2001-02-13 | Henkel Kommanditgesellschaft Auf Aktien | Paste-form washing and cleaning agents |
US6329333B1 (en) * | 1997-01-30 | 2001-12-11 | Henkel-Ecolab Gmbh & Co. Ohg | Pastelike detergent and cleaning agent |
-
2004
- 2004-05-28 DE DE602004019580T patent/DE602004019580D1/de not_active Expired - Lifetime
- 2004-05-28 DK DK04741679T patent/DK1751265T3/da active
- 2004-05-28 AT AT04741679T patent/ATE423188T1/de not_active IP Right Cessation
- 2004-05-28 EP EP04741679A patent/EP1751265B1/fr not_active Expired - Lifetime
- 2004-05-28 WO PCT/EP2004/050963 patent/WO2005118767A1/fr not_active Application Discontinuation
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1995029282A1 (fr) * | 1994-04-27 | 1995-11-02 | Henkel-Ecolab Gmbh & Co. Ohg | Procede et dispositif pour vider un recipient rempli d'une pate tixotrope |
US6187739B1 (en) * | 1995-09-21 | 2001-02-13 | Henkel Kommanditgesellschaft Auf Aktien | Paste-form washing and cleaning agents |
US6329333B1 (en) * | 1997-01-30 | 2001-12-11 | Henkel-Ecolab Gmbh & Co. Ohg | Pastelike detergent and cleaning agent |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8287658B2 (en) | 2009-06-02 | 2012-10-16 | Ecolab Usa Inc. | Biodegradable surfactant blend |
Also Published As
Publication number | Publication date |
---|---|
EP1751265A1 (fr) | 2007-02-14 |
DK1751265T3 (da) | 2009-05-04 |
ATE423188T1 (de) | 2009-03-15 |
DE602004019580D1 (de) | 2009-04-02 |
EP1751265B1 (fr) | 2009-02-18 |
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