EP1341896A1 - Alkalische, wasserhaltige paste - Google Patents
Alkalische, wasserhaltige pasteInfo
- Publication number
- EP1341896A1 EP1341896A1 EP01999628A EP01999628A EP1341896A1 EP 1341896 A1 EP1341896 A1 EP 1341896A1 EP 01999628 A EP01999628 A EP 01999628A EP 01999628 A EP01999628 A EP 01999628A EP 1341896 A1 EP1341896 A1 EP 1341896A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- weight
- composition according
- alkyl
- mpas
- viscosity
- 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.)
- Granted
Links
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
- 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
- C11D3/10—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
- C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
- C11D1/66—Non-ionic compounds
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
- C11D1/66—Non-ionic compounds
- C11D1/662—Carbohydrates or derivatives
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
- C11D1/66—Non-ionic compounds
- C11D1/72—Ethers of polyoxyalkylene glycols
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D2111/00—Cleaning compositions characterised by the objects to be cleaned; Cleaning compositions characterised by non-standard cleaning or washing processes
- C11D2111/40—Specific cleaning or washing processes
Definitions
- the present invention relates to pasty thixotropic detergents or cleaning agents which contain substantial amounts of alkalinity carriers, nonionic surfactants and water, and to washing processes in which such agents are used.
- the invention relates to such washing processes in which the wastewater or part of the washing liquor is processed using membrane technology.
- European patent specification EP 295 525 B1 discloses pasty detergents which consist of a phase which is liquid in the temperature range below 10 ° C. and which is formed from nonionic surfactant, and a solid phase of a certain particle size dispersed therein, which is formed from washing alkalis, sequestering agents and optionally anionic surfactants will exist.
- the prerequisite is that surfactants or their mixtures are used whose pour point (solidification point) must be below 5 ° C in order to avoid solidification of the paste at low transport and storage temperatures.
- This detergent paste is intended for commercial laundries and is so flowable that it can be conveyed via a suction line using a conventional feed pump. It has been found, however, that such pastes cannot always ensure the homogeneity of their ingredients satisfactorily during their production and often tend to separate even during storage. The separation does not only concern the separation of the solid from the liquid components, but also the phase separation of the liquid components.
- Another paste-like detergent which, as a nonionic surfactant, comprises 40 to 70% by weight of ethoxylated fatty alcohol with 10 to 20 carbon atoms which is liquid at room temperature and an average degree of ethoxylation of 1 to 8 and 20 to 50% by weight of ethoxylated and propoxylated fatty alcohol which is liquid at room temperature 10 to 20 carbon atoms and a medium one Contains a degree of ethoxylation of 2 to 8 and an average degree of propoxylation of 1 to 6 and 1 to 10% by weight of soap is described in the international patent application WO 95/09229.
- This pasty detergent is so structurally viscous that it is not flowable at room temperature under the influence of gravity, but has a significantly lower viscosity when sheared and is then flowable under the influence of gravity.
- the metering of this pasty detergent or cleaning agent is preferably carried out by subjecting the agent to lowering the viscosity to shear and then metering the flowable agent by means of feed pumps.
- the nonionic surfactant, organic and / or inorganic builder, alkalizing agent, and optionally bleaching agent, enzyme, graying-inhibiting polymer and / or other usual ingredients contains and is characterized in that it contains 5% by weight to 30% by weight of an ethoxylated alcohol of the general formula R 1 - (OC 2 H) m -OH (I), in which R 1 is an alkyl or alkenyl radical 9 to 15 carbon atoms and the mean degree of ethoxylation m can assume values from 1 to 8, 1% by weight to 20% by weight of an ethoxylated alcohol of the general formula R 2 - (OC 2 H) n -OH (II ), in which R 2 is an alkyl or alkenyl radical having 12 to 22 carbon atoms and the average degree of ethoxylation n can assume values from 3 to 14, with the proviso that n is at least 1.0
- alkalizing agent l in particular alkali metal silicate, 1% by weight to 20% by weight medium to long-chain alcohol or alkyl ether of the general formula R 3 -OR 4 (III), in which R 3 is an alkyl or alkenyl radical with 6 to 22 C- Atoms, in particular 8 to 22 carbon atoms and R 4 is hydrogen or an alkyl radical with 1 to 6 carbon atoms, and contains up to 15% by weight of organic builders of the polymeric polycarboxylate type, where polymeric polycarboxylates contain polymerization products of unsaturated ones Mono- and / or dicarboxylic acids are understood that have no other functionalities apart from carboxyl groups.
- the agents known from the documents mentioned above have a high cleaning performance and are very well suited for the commercial washing of soiled laundry.
- nonionic surfactants In all cases, certain requirements are placed on the nonionic surfactants with regard to their solidification point or their composition. In the event that the wastewater and / or part of the wash liquor obtained after carrying out the washing process is treated by membrane filtration, many nonionic surfactants lead to not inconsiderable problems. Depending on the choice of nonionic surfactants, this can even lead to blocking of the membranes. This point is particularly critical in membrane filtration processes, in the course of which at least one reverse osmosis cut occurs. DE 197 26 287 also deals with the problem of blocking membranes in the filtration of waste water from washing processes.
- the subject of this document is a method for washing laundry, in particular workwear, wherein the laundry in a conventional washing machine for commercial laundries with a product combination of at least two components
- a surfactant component preferably containing nonionic surfactant, is washed and the wastewater is processed in a membrane filtration system.
- Another object of the aforementioned document is a product combination for use in commercial laundries from at least two components (A) containing a washing alkali component
- the present invention relates to a water-containing, paste-like, thixotropic washing or cleaning agent containing, based on the total agent, a) an alkalinity carrier selected from alkali hydroxide and / or alkali carbonate in an amount of 5 to 40% by weight, preferably 8 to 30% by weight, b) at least 5% by weight, preferably 15 to 40% by weight of water , and c) more than 3% by weight, preferably 5.5 to 30% by weight, particularly preferably 6 to 15% by weight, of nonionic surfactants, the agent having a viscosity of 50,000 mPas to 250 at 25 ° C. 000 mPas, measured with a Brookfield rotary viscometer (spindle No.
- no alkali metal silicate is added to the agent according to the invention.
- At least one compound of the general formula (I) is present in the agent according to the invention as a nonionic surfactant
- R ⁇ denotes a branched or unbranched alkyl or alkenyl radical having 10 to 20 carbon atoms and the average degree of ethoxylation n has values from 5 to 20, preferably from 7 to 12, in particular from 7 to 10. It is particularly preferred if R 1 is a branched alkyl radical having 10 to 16 carbon atoms.
- DE 198 28 578 discloses creamy, highly alkaline, aqueous.
- Detergents which, according to the statements in column 3 from line 65, low-foaming surfactants, especially nonionic surfactants, in an amount of up to 10% by weight, preferably 1 to 5% by weight and particularly preferably 2 to 4 Can contain wt .-%.
- a higher surfactant content is recommended, which is generally up to 20% by weight, preferably 0.1 to 15, particularly preferably 1 to 10% by weight. % and most preferably 2 to 4% by weight, based on the total mean.
- nonionic, cationic and amphoteric surfactants particularly anionic surfactants from the group of alkylbenzenesulfonates, fatty alcohol sulfates, fatty alcohol ether sulfates and other known anionic surfactants are used.
- the subject of the present invention is essentially thixotropic agents which, in a preferred embodiment, have very good membrane compatibility in the case of membrane treatment of the waste water or part of the wash liquor from the washing process.
- the agents according to the invention furthermore contain sodium hydroxide and / or soda as alkalinity carriers.
- compositions of the invention additionally contain up to 10 wt%, preferably 0.5 wt .-% to 8 wt .-% of anionic surfactant, in particular C ⁇ -C ⁇ 6 - alkyl sulfates, C8-Ci8 alkyl ether sulfates, C 8 -C ⁇ 8- alkanesulfonates, C 8 -Ci 8 - ⁇ -olefin sulfonates, sulfonated C 8 -C 8 fatty acids, C 8 -C 8 alkylbenzenesulfonates, sulfonic succinic acid mono- and -di-C ⁇ -Ci 2 alkyl esters, C 8 -C ⁇ 8 -Alkylpolyglykolether- carboxylate, C 8 -C-
- the agents according to the invention additionally contain at least one alkyl polyglucoside with 8 to 14 carbon atoms in the alkyl group and 1 to 5 glucose units, particularly preferably in a proportion of 0.1 to 5% by weight, based on the total Means included.
- the agents according to the invention additionally contain a complexing agent selected from polyphosphonic acids, in particular 1-hydroxyethane-1, 1-diphosphonic acid, diethylenetriaminepentamethylenephosphonic acid, ethylene-diamintetramethylenephosphonic acid, N- (2-hydroxyethyl) , N, N-bis-methylenephosphonic acid and its salts, and / or polycarboxylic acids, in particular copolymers of acrylic and maleic acid and their salts or NTA or organic acids, preferably citric acid and its salts, before, in particular with a proportion of 1 to 20% by weight. -%, based on the total mean.
- a complexing agent selected from polyphosphonic acids, in particular 1-hydroxyethane-1, 1-diphosphonic acid, diethylenetriaminepentamethylenephosphonic acid, ethylene-diamintetramethylenephosphonic acid, N- (2-hydroxyethyl) , N, N-bis-methylenephosphonic acid and its salts, and / or polycarboxylic acids
- compositions of the invention based on the total composition, in addition 0.5 to 10 wt .-% branched or unbranched C 8 - 22 fatty alcohol contains.
- branched or unbranched C 8 - 22 fatty alcohol contains.
- the agents according to the invention additionally contain a phosphate, preferably tripolyphosphate, particularly preferably in a concentration of 5 to 50% by weight, based on the total agent.
- the agent according to the invention can contain known additives commonly used in such washing alkali compositions, such as co-builders, optical brighteners, colorants and fragrances, small amounts of neutral salts such as sulfates and chlorides in the form of their sodium or potassium salts, provided that these do not affect positive properties.
- suitable product additives can be enzymes, bleaching agents from the per-compound class, which are usually used together with activators, active chlorine compounds, and colorants and fragrances. In the case of additives that have an oxidizing effect, it is advisable to check the compatibility with the corresponding reverse osmosis membranes, provided that they play a role in the overall process.
- Another object of the present invention is a mechanical washing process with process-controlled dosing of detergent and water, in which a detergent or cleaning agent according to the invention is fed into a washing machine by means of a process-controlled device for dosing the agent, it being preferred that wastewater and / or part of the wash liquor obtained in the process is processed via a membrane filtration system, and particularly preferably the membrane filtration is passed through at least one reverse osmosis step.
- the wastewater stream to be treated was branched off from the wastewater stream of a continuously operating textile washing machine of a test laundry.
- the washing process in the test laundry differed in the different test phases only through the use of the different products: sample pastes 1 to 3 and comparison paste. each of the products mentioned was used in the respective washing process in a 2% concentration.
- the wastewater stream to be treated was passed through a self-cleaning 75 ⁇ prefilter.
- the reverse osmosis membrane used had an area of 40 square meters and a capacity of 15 I per m 2 .h.
- the material of the reverse osmosis membrane used was organic (polypropylene).
- the temperature during the reverse osmosis was around 40 ° C.
- the reverse osmosis was carried out in such a way that about 80% of the wastewater stream to be treated was obtained as a reusable permeate and about 20% of the wastewater stream to be treated as a concentrate to be discarded with a high salt content and high organic load.
- the duration of the test phases with the four products to be examined was 5 days with 8 hours of operation per day.
- the reverse osmosis membrane was cleaned thoroughly before each product change. With this measure it was achieved that the output power XA, expressed in the form of the flow rate [l / h], was approximately the same in all tests.
- the reverse osmosis membrane was flushed with water every day during the test period after the end of operation.
- the final power XE was determined in the form of the flow rate [l / h].
- the ratio of X E to X A was used to characterize the products tested in the test phases.
- the ratio of XE can be taken as an indication of whether it is necessary to clean the reverse osmosis membrane.
- Ratio xj calculated.
- the ratio ⁇ 7 can be taken as an indication of the extent to which the reverse osmosis membrane can be regenerated with a certain product concept after a certain term. Depending on how good or bad the regenerability of the reverse osmosis membrane is, sooner or later the cost-intensive purchase of new reverse osmosis membranes must be carried out.
- the ratios 2 ⁇ and - ⁇ s R obtained when using the 3 sample pastes and the comparison paste .
Landscapes
- 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)
- Preventing Corrosion Or Incrustation Of Metals (AREA)
- Battery Electrode And Active Subsutance (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10061416 | 2000-12-09 | ||
| DE10061416A DE10061416A1 (de) | 2000-12-09 | 2000-12-09 | Alkalische, wasserhaltige Paste |
| PCT/EP2001/013961 WO2002046351A1 (de) | 2000-12-09 | 2001-11-29 | Alkalische, wasserhaltige paste |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1341896A1 true EP1341896A1 (de) | 2003-09-10 |
| EP1341896B1 EP1341896B1 (de) | 2004-06-16 |
Family
ID=7666511
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP01999628A Expired - Lifetime EP1341896B1 (de) | 2000-12-09 | 2001-11-29 | Alkalische, wasserhaltige paste |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US7056876B2 (de) |
| EP (1) | EP1341896B1 (de) |
| AT (1) | ATE269397T1 (de) |
| DE (2) | DE10061416A1 (de) |
| WO (1) | WO2002046351A1 (de) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE60313882T2 (de) | 2002-11-06 | 2007-09-20 | Unilever N.V. | Gelförmiges waschmittel |
| EP1749081B8 (de) * | 2004-05-28 | 2019-10-16 | Ecolab USA Inc. | Membranfreundliche pastenförmige seifenzusammensetzung |
| CA2692254C (en) * | 2007-08-28 | 2013-12-31 | Ecolab Inc. | Paste-like detergent formulation comprising branched alkoxylated fatty alcohols as non-ionic surfactants |
| US8455426B1 (en) | 2012-05-04 | 2013-06-04 | AGAIA International, Inc. | Cleaning compositions |
| KR20150036611A (ko) | 2012-07-13 | 2015-04-07 | 바스프 에스이 | 수성 멤브레인 세정 조성물에 대한 첨가제로서의 알콕시화 비-이온성 계면활성제의 용도 |
| MX2015008489A (es) * | 2013-01-03 | 2015-10-05 | Basf Corp | Composicion detergente homogenea. |
| ES2685655T5 (en) | 2015-10-16 | 2025-02-12 | Hans Georg Hagleitner | Liquid cleaning concentrate |
| WO2019123343A1 (en) | 2017-12-22 | 2019-06-27 | Church & Dwight Co., Inc. | Laundry detergent composition |
| US12252667B2 (en) | 2020-04-07 | 2025-03-18 | Church & Dwight Co., Inc. | Laundry detergent composition |
| CA3173075A1 (en) | 2020-04-07 | 2021-10-14 | Leilani Pechera | Laundry detergent composition |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB8619064D0 (en) * | 1986-08-05 | 1986-09-17 | Unilever Plc | Detergent compositions |
| DE3719906A1 (de) * | 1987-06-15 | 1988-12-29 | Henkel Kgaa | Maschinelles waschverfahren |
| US5691292A (en) * | 1992-04-13 | 1997-11-25 | The Procter & Gamble Company | Thixotropic liquid automatic dishwashing composition with enzyme |
| DE4332849A1 (de) | 1993-09-27 | 1995-03-30 | Henkel Kgaa | Pastenförmiges Waschmittel |
| CN1105181C (zh) * | 1995-02-28 | 2003-04-09 | 凯化学公司 | 浓缩液体凝胶器皿洗涤剂 |
| DE19636035A1 (de) | 1996-09-05 | 1998-03-12 | Henkel Ecolab Gmbh & Co Ohg | Pastenförmiges Wasch- und Reinigungsmittel |
| DE19726287A1 (de) * | 1997-06-20 | 1998-12-24 | Henkel Ecolab Gmbh & Co Ohg | Verfahren zum Waschen von Wäsche, insbesondere von Berufsbekleidung |
| US6194371B1 (en) * | 1998-05-01 | 2001-02-27 | Ecolab Inc. | Stable alkaline emulsion cleaners |
| DE19828578C2 (de) | 1998-06-26 | 2000-04-20 | Henkel Ecolab Gmbh & Co Ohg | Verfahren zur Herstellung von cremeförmigen alkalisch-wäßrigen Reinigungsmitteln |
| DE19857687A1 (de) * | 1998-12-15 | 2000-06-21 | Henkel Ecolab Gmbh & Co Ohg | Pastenförmiges Waschmittel |
| US6565613B1 (en) | 1999-04-29 | 2003-05-20 | Genencor International, Inc. | Cellulase detergent matrix |
-
2000
- 2000-12-09 DE DE10061416A patent/DE10061416A1/de not_active Ceased
-
2001
- 2001-11-29 US US10/450,027 patent/US7056876B2/en not_active Expired - Lifetime
- 2001-11-29 DE DE50102640T patent/DE50102640D1/de not_active Expired - Lifetime
- 2001-11-29 AT AT01999628T patent/ATE269397T1/de not_active IP Right Cessation
- 2001-11-29 WO PCT/EP2001/013961 patent/WO2002046351A1/de not_active Ceased
- 2001-11-29 EP EP01999628A patent/EP1341896B1/de not_active Expired - Lifetime
Non-Patent Citations (1)
| Title |
|---|
| See references of WO0246351A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| US20050227899A1 (en) | 2005-10-13 |
| DE50102640D1 (de) | 2004-07-22 |
| WO2002046351A1 (de) | 2002-06-13 |
| DE10061416A1 (de) | 2002-06-20 |
| ATE269397T1 (de) | 2004-07-15 |
| EP1341896B1 (de) | 2004-06-16 |
| US7056876B2 (en) | 2006-06-06 |
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