EP0806472A1 - Kit de nettoyage pour la vaiselle et procédé d'usage - Google Patents

Kit de nettoyage pour la vaiselle et procédé d'usage Download PDF

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Publication number
EP0806472A1
EP0806472A1 EP97107098A EP97107098A EP0806472A1 EP 0806472 A1 EP0806472 A1 EP 0806472A1 EP 97107098 A EP97107098 A EP 97107098A EP 97107098 A EP97107098 A EP 97107098A EP 0806472 A1 EP0806472 A1 EP 0806472A1
Authority
EP
European Patent Office
Prior art keywords
cleaner
cleaning
solution
acid
main
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
Application number
EP97107098A
Other languages
German (de)
English (en)
Other versions
EP0806472B2 (fr
EP0806472B1 (fr
Inventor
Olaf Schreiber
Jürgen Dr. Staffeldt
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Chemische Fabrik Dr Weigert GmbH and Co
Original Assignee
Chemische Fabrik Dr Weigert GmbH and Co
Priority date (The priority date 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 date listed.)
Filing date
Publication date
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Application filed by Chemische Fabrik Dr Weigert GmbH and Co filed Critical Chemische Fabrik Dr Weigert GmbH and Co
Publication of EP0806472A1 publication Critical patent/EP0806472A1/fr
Application granted granted Critical
Publication of EP0806472B1 publication Critical patent/EP0806472B1/fr
Publication of EP0806472B2 publication Critical patent/EP0806472B2/fr
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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
    • C11D3/16—Organic compounds
    • C11D3/38—Products with no well-defined composition, e.g. natural products
    • C11D3/386—Preparations containing enzymes, e.g. protease or amylase
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/16—Organic compounds
    • C11D3/20—Organic compounds containing oxygen
    • C11D3/2075—Carboxylic acids-salts thereof
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/16—Organic compounds
    • C11D3/20—Organic compounds containing oxygen
    • C11D3/2075—Carboxylic acids-salts thereof
    • C11D3/2079—Monocarboxylic acids-salts thereof
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/16—Organic compounds
    • C11D3/20—Organic compounds containing oxygen
    • C11D3/2075—Carboxylic acids-salts thereof
    • C11D3/2082—Polycarboxylic acids-salts thereof
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/16—Organic compounds
    • C11D3/20—Organic compounds containing oxygen
    • C11D3/2075—Carboxylic acids-salts thereof
    • C11D3/2086—Hydroxy carboxylic acids-salts thereof
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • 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
    • C11D2111/44—Multi-step processes

Definitions

  • the invention relates to a method for cleaning dishes and a kit of pre-cleaner and main cleaner for use in this method.
  • the automatic cleaning of dishes is widespread both in the private and in the commercial sector.
  • the use of enzyme-containing cleaners for this purpose is known, for example, from EP-B-0 578 666.
  • Difficulties in the automatic cleaning of dishes are often the removal of tannins, particularly those contained in coffee and tea, which are deposited on the dishes, for example in the form of iron complexes, and form unsightly deposits there.
  • Aggressive (e.g. highly alkaline or chlorine-containing) cleaning agents are usually required to remove tannin deposits.
  • the invention has for its object to provide a method for cleaning dishes that allows extensive removal of tannins or tannin deposits from dishes without the use of excessively aggressive cleaning agents.
  • cleaning solution for example pre-cleaning or main cleaning solution
  • cleaning solution denotes the solution that has actually been brought into contact with the dishes, which is usually obtained by diluting a cleaning agent with water.
  • the cleaning solution can be present in a ready-to-use preparation in a storage container and can be brought into contact with the dishes without further dilution, but as a rule the cleaning solution is obtained from a cleaner (usually a concentrate) by dilution with water.
  • pre-cleaning denotes a process upstream of the main cleaning, which does not necessarily have to be the first process step.
  • further pre-cleaning steps which are not defined in claim 1, can also be carried out upstream.
  • a first pre-cleaning step pre-rinsing
  • pre-rinsing for removing coarse impurities can be provided.
  • Such pre-rinsing or pre-clearing takes place advantageously only with water without the addition of cleaning agents, in particular enzymatic cleaning agents. It has been shown that residues of cleaning agent remaining on the dishes after pre-clearing can impair the effect of the pre-cleaning solution sprayed on in step a).
  • a complexing agent for alkaline earth ions is any substance that can complex alkaline earth ions (especially calcium and / or magnesium) in aqueous solution.
  • An enzymatic detergent solution is a wash liquor called enzymes contains as active cleaning substances.
  • the main cleaning solution will contain other active ingredients such as tensides, defoamers and other additives.
  • cleaning includes all cleaning and / or rinsing steps following the main cleaning according to the invention.
  • the main cleaning according to the invention is followed by a further main cleaning step with another cleaner.
  • This second main cleaning is then followed by the usual rinsing and / or rinsing.
  • the main cleaning according to the invention is immediately followed by a rinse (usually with a customary rinse aid), and possibly also a (further) rinse with water. All of these variants are included in the term "rinsing" used in claim 1.
  • the invention is based on the surprising finding that the combination of a pre-cleaning step with the agents mentioned in claim 1 and a subsequent main cleaning with an enzymatic cleaning solution leads to particularly good tannin removal.
  • the precleaner can contain mono- and / or dicarboxylic acids with 1 - 3 carbon atoms. Preferred among these acids are formic and / or acetic acid, formic acid is particularly preferred.
  • a 0.1-80%, preferably 30-50%, more preferably approximately 40% solution of formic acid in water (preferably fully demineralized or fully softened water with less than 0.1 ° dH) can be used as the pre-cleaner, for example.
  • Lower concentrated formic acid solutions e.g. 5 - 10%
  • a formic acid solution with a concentration below 10% is unproblematic to handle and only as "irritant", but not, like more concentrated solutions, as "caustic" subject to labeling. Unless otherwise stated, all percentages are percentages by weight.
  • this cleaner is diluted with water (preferably fully demineralized or fully softened water) to a cleaning solution.
  • the cleaning solution preferably contains 0.01-1%, more preferably 0.05-0.2% formic acid.
  • the precleaner (instead of or in addition to the acids mentioned above) contains complex-forming organic acids and / or their salts.
  • Complexing means that these acids can form complexes with alkaline earth metal ions (especially calcium and / or magnesium) in aqueous solution.
  • the precleaner preferably contains at least one acid from the group of the so-called food acids, this group includes citric acid, malic acid, tartaric acid, lactic acid and / or salts of the aforementioned acids.
  • the precleaner solution is preferably buffered, preferably to a pH of 2 - 9, more preferably 2-5 or 8 - 9.
  • Amines are particularly preferably used as buffers, preferably alkanolamines, more preferably mono-, di- and / or triethanolamine. It has been shown that amines increase the wetting effect of the precleaner and enable an even better "loosening" of the organic tannin deposits.
  • a pre-cleaner solution that contains citric acid and an alkanolamine (especially monoethanolamine) has a particularly good wetting effect.
  • the concentration of the total amount of organic acid and / or complexing agent in the pre-cleaner solution is preferably 0.01-5%, more preferably 0.05-1%.
  • the pre-cleaner can contain, for example, 0.8-30% monoethanolamine and 1-30% citric acid. This precleaner is diluted with water to form a precleaner solution, preferably in the form such that a monoethanol concentration of 0.01 to 1%, more preferably 0.05-0.2%, results in the precleaner solution.
  • the pre-cleaner solution can be brought into contact with the dishes, for example, by immersing the dishes in a pre-cleaner solution.
  • spraying the precleaner solution onto the dishes is preferred.
  • the term "spraying" includes both finely divided spraying and over-showering.
  • a pre-cleaner component can be a 0.8 to 40% aqueous monoethanolamine solution
  • the second pre-cleaner component is a 40% aqueous citric acid solution.
  • these components are diluted with water and sprayed on in such a way that the pre-cleaner solution formed on the dishes by mixing contains 0.01-1%, preferably 0.05-0.2%, of monoethanolamine and citric acid.
  • the pre-cleaner solution or its components can be sprayed on using known spray frames.
  • the sprayed pre-cleaning solution is preferably allowed to act on the dishes before the main cleaning.
  • the exposure time can be in the range 2 s - 3 min, preferably about 5 - 30 s. If a multi-tank dishwasher is used to carry out the method according to the invention, a certain exposure time results automatically from the movement of the dishes from the pre-wash into the main wash cycle. The action can take place either with continuous further spraying or in an area in which the dishes are not sprayed further.
  • the proportion of the pre-cleaning solution used in the total amount of cleaning solution used for pre-cleaning and main cleaning is preferably 0.1-10%, more preferably 0.1-1%.
  • the main enzymatic cleaner can in particular contain proteases, amylases and / or lipases.
  • proteases As proteolytic enzymes Commercial proteases obtained from bacterial strains are particularly suitable.
  • the concentration information given relates to the main cleaner and not to the main cleaner solution.
  • the main cleaner is diluted with water to a main cleaner solution, its concentration in the aqueous solution is preferably 0.1-5%, more preferably 0.2-1%.
  • the NC 8 - C 12 pyrrolidones contained in the main cleaner are commercially available compounds which are used in the prior art, inter alia, as surface-active agents in cosmetic formulations.
  • the list of constituents in the main cleaner is not exhaustive; conventional additives and auxiliaries, such as, for example, solubilizers, defoamers, fragrances, dyes, thickeners, preservatives and hardness dispersants may be present. The same applies to the precleaner; here too, the list of components mentioned in the claims and the description is not to be understood as exhaustive.
  • short-chain sulfonates or sulfates can be used as solubilizers.
  • Typical examples of defoamers that may be added to the cleaner according to the invention are biodegradable adducts of ethylene oxide and propylene oxide with fatty alcohols with cloud points in water of 50 50 ° C. or of propylene oxide with fatty alcohols.
  • Ethylene oxide / propylene oxide adducts with fatty alcohols are particularly preferred, which are commercially available block adducts of 2 to 5 moles of ethylene oxide and 2 to 4 moles of propylene oxide with 1 mole of fatty alcohols having 12 to 18, in particular 12 to 14, carbon atoms; they can be contained in the main cleaners in an amount of 1 to 3% by weight.
  • the above-mentioned defoamers are commercially available compounds which have a defoaming effect at the normal operating temperatures of a dishwasher (approx. 50 to 60 ° C.); if necessary, the main cleaners may contain other, also conventional defoamers.
  • the optimal amount of defoamers to be added depends on the chain length of the N-alkylpyrrolidones; longer chain compounds may require higher levels of defoamers.
  • the main cleaner has a content of NC 8 -C 12 alkyl pyrrolidones in the range from 0.08 to 1.0% by weight.
  • the main cleaner has a protease content in the range from 0.005 to 0.125 Anson units per 1 liter of solution.
  • the main cleaner has an amylase content in the range of 0.15 to 2.0 kilo-Novo units per 1 l of solution.
  • the main cleaner has a pH in the range from 6 to 8 set by means of buffer substances; suitable buffer systems, e.g. B. NaHCO 3 / Na 2 CO 3 and polycarbonates are familiar to the skilled worker.
  • the main cleaner according to the invention is preferably metered into the cleaning liquor during the main cleaning step, the pre-cleaned dishes are brought into contact with the main cleaning liquor in a known manner, the dishes are, for example, immersed or showered with the liquor.
  • the resulting mixture was diluted with water to a total volume of 1,000 ml.
  • a Winterhalter 2-tank box transport machine of the type WKTS-PWZNT 2600 was used to carry out the method according to the invention, which had a spray device for spraying the pre-cleaner solution in front of the tank for carrying out the main cleaning.
  • the possibly pre-washed and / or mechanically pre-cleaned dishes are sprayed with a pre-cleaning solution in the pre-cleaning stage.
  • a pre-cleaning solution for their preparation, 70 ml per hour of precleaner 1 20 l of water per hour are metered in continuously.
  • pre-cleaner solution there is a concentration of 0.4% pre-cleaner 1 (corresponding to 0.16% formic acid).
  • the main cleaning solution in this tank contains the main cleaner in a concentration of 1-10 g / l, preferably 3-5 g / l, further preferably 4 g / l.
  • the main cleaner is continuously metered into the main cleaning tank in an amount of 1.5 l / h.
  • rinsing is carried out with a normal neutral rinsing agent.
  • the pre-cleaner solution was prepared by metering in 140 ml / h of pre-cleaner 2 to 20 l of water per hour.
  • the concentration of the pre-cleaner 2 in the pre-cleaner solution was 0.8% (corresponding to 0.2% citric acid).
  • Main cleaning and rinsing are carried out in the same way as in Example 1.
  • the amount and pH of the pre-cleaning solutions were chosen so that when the pre-cleaning solution was introduced into the main cleaning tank, there was only a relatively small decrease in the pH of the main cleaning liquor.
  • the cleaning effect of the enzymes which only develops optimally within a certain pH value, is therefore not or only insignificantly impaired.

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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)
  • Health & Medical Sciences (AREA)
  • Emergency Medicine (AREA)
  • Detergent Compositions (AREA)
  • Washing And Drying Of Tableware (AREA)
EP97107098A 1996-05-09 1997-04-29 Kit de nettoyage pour la vaiselle et procédé d'usage Expired - Lifetime EP0806472B2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19618725A DE19618725A1 (de) 1996-05-09 1996-05-09 Verfahren und Kit zum Reinigen von Geschirr
DE19618725 1996-05-09

Publications (3)

Publication Number Publication Date
EP0806472A1 true EP0806472A1 (fr) 1997-11-12
EP0806472B1 EP0806472B1 (fr) 2001-10-10
EP0806472B2 EP0806472B2 (fr) 2004-10-13

Family

ID=7793869

Family Applications (1)

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EP97107098A Expired - Lifetime EP0806472B2 (fr) 1996-05-09 1997-04-29 Kit de nettoyage pour la vaiselle et procédé d'usage

Country Status (3)

Country Link
EP (1) EP0806472B2 (fr)
AT (1) ATE206752T1 (fr)
DE (2) DE19618725A1 (fr)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1026230A1 (fr) * 1999-02-05 2000-08-09 Unilever Plc Kit de nettoyage pour la vaisselle
EP1081215A1 (fr) * 1999-09-02 2001-03-07 CHEMISCHE FABRIK DR. WEIGERT (GMBH & CO.) Concentré enzymatique et procédé de nettoyage de surfaces
WO2002100993A1 (fr) * 2001-06-08 2002-12-19 Ecolab Inc. Procede d'epuration destine a l'elimination d'amidon
EP1347039A1 (fr) * 2002-03-18 2003-09-24 Chemische Fabrik Dr. Weigert GmbH & Co. KG. Procédé pour le nettoyage de la vaisselle
EP1657297A1 (fr) * 2004-11-15 2006-05-17 Chemische Fabrik Dr. Weigert(GMBH & CO.) Procédé pour le nettoyage de la vaisselle
WO2009034355A1 (fr) * 2007-09-14 2009-03-19 Reckitt Benckiser N.V. Composition de détergent contenant de la pyrrolidone
WO2010072603A1 (fr) * 2008-12-15 2010-07-01 Henkel Ag & Co. Kgaa Agent de lavage pour lave-vaisselle
WO2010076165A1 (fr) * 2008-12-15 2010-07-08 Henkel Ag & Co. Kgaa Produit de lavage pour lave-vaisselle
US8092613B2 (en) 2002-05-31 2012-01-10 Ecolab Usa Inc. Methods and compositions for the removal of starch
US20120318303A1 (en) * 2011-06-14 2012-12-20 Ecolab Usa Inc. Non-bleaching procedure for the removal of tea and coffee stains
US8758520B2 (en) 2011-05-20 2014-06-24 Ecolab Usa Inc. Acid formulations for use in a system for warewashing
US9139800B2 (en) 2011-12-13 2015-09-22 Ecolab Usa Inc. Concentrated warewashing compositions and methods

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DZ3349A1 (fr) 2000-07-28 2002-02-07 Henkel Kgaa Nouvelle enzyme amylolytique issue de bacillus sp. a 7-7 (dsm 12368) ainsi que produits de lavage et nettoyage contenant ledit enzyme amylolytique
CN104130885A (zh) * 2014-07-29 2014-11-05 芜湖野树林生物科技有限公司 一种茶垢洗涤剂
CN104130886A (zh) * 2014-07-29 2014-11-05 芜湖野树林生物科技有限公司 一种快速清洗茶垢的清洗液

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1944904A1 (de) * 1969-09-04 1971-04-01 Uwe Dr Wolf Verfahren zur Reinigung von Geschirr und Waesche
DE1792359A1 (de) * 1968-08-23 1973-02-08 Henkel & Cie Gmbh Verfahren zum maschinellen spuelen von geschirr
WO1992017564A1 (fr) * 1991-04-03 1992-10-15 Chemische Fabrik Dr. Weigert (Gmbh & Co.) Procede et concentres d'agents tensio-actifs pour enlever de la vaisselle des salissures contenant de l'amidon
EP0561446A2 (fr) * 1992-03-17 1993-09-22 Unilever N.V. Compositions détergentes
WO1994007989A1 (fr) * 1992-09-25 1994-04-14 Unilever N.V. Procede de nettoyage
WO1994027488A1 (fr) * 1993-05-25 1994-12-08 Henkel-Ecolab Gmbh & Co. Ohg Procede et dispositif de lavage de la vaisselle en machine

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3707366A1 (de) † 1987-03-07 1988-09-15 Diversey Gmbh Verfahren zur kontinuierlichen oder diskontinuierlichen maschinellen reinigung von gebrauchsgeschirr
DE59209547D1 (de) † 1991-07-17 1998-12-10 Behrensdorf Johannes Maschinengeschirrspülmittel und Verfahren zu seiner Herstellung
BR9306242A (pt) † 1992-04-13 1998-06-23 Procter & Gamble Processo para preparaçao de composiçoes detergentes líquidas tixotrópicas
GB9407299D0 (en) † 1994-04-13 1994-06-08 Procter & Gamble Detergent compositions
GB9423952D0 (en) † 1994-11-24 1995-01-11 Unilever Plc Cleaning compositions and their use

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1792359A1 (de) * 1968-08-23 1973-02-08 Henkel & Cie Gmbh Verfahren zum maschinellen spuelen von geschirr
DE1944904A1 (de) * 1969-09-04 1971-04-01 Uwe Dr Wolf Verfahren zur Reinigung von Geschirr und Waesche
WO1992017564A1 (fr) * 1991-04-03 1992-10-15 Chemische Fabrik Dr. Weigert (Gmbh & Co.) Procede et concentres d'agents tensio-actifs pour enlever de la vaisselle des salissures contenant de l'amidon
EP0561446A2 (fr) * 1992-03-17 1993-09-22 Unilever N.V. Compositions détergentes
WO1994007989A1 (fr) * 1992-09-25 1994-04-14 Unilever N.V. Procede de nettoyage
WO1994027488A1 (fr) * 1993-05-25 1994-12-08 Henkel-Ecolab Gmbh & Co. Ohg Procede et dispositif de lavage de la vaisselle en machine

Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000046341A1 (fr) * 1999-02-05 2000-08-10 Unilever Plc Ensemble pour lave-vaisselle
EP1026230A1 (fr) * 1999-02-05 2000-08-09 Unilever Plc Kit de nettoyage pour la vaisselle
EP1081215A1 (fr) * 1999-09-02 2001-03-07 CHEMISCHE FABRIK DR. WEIGERT (GMBH & CO.) Concentré enzymatique et procédé de nettoyage de surfaces
WO2002100993A1 (fr) * 2001-06-08 2002-12-19 Ecolab Inc. Procede d'epuration destine a l'elimination d'amidon
EP1347039A1 (fr) * 2002-03-18 2003-09-24 Chemische Fabrik Dr. Weigert GmbH & Co. KG. Procédé pour le nettoyage de la vaisselle
US8092613B2 (en) 2002-05-31 2012-01-10 Ecolab Usa Inc. Methods and compositions for the removal of starch
US8882932B2 (en) 2002-05-31 2014-11-11 Ecolab Usa Inc. Methods and compositions for the removal of starch
US8709167B2 (en) 2002-05-31 2014-04-29 Ecolab Usa Inc. Methods and compositions for the removal of starch
EP1657297A1 (fr) * 2004-11-15 2006-05-17 Chemische Fabrik Dr. Weigert(GMBH & CO.) Procédé pour le nettoyage de la vaisselle
US8598104B2 (en) 2007-09-14 2013-12-03 Reckitt Benckiser N.V. Pyrrolidone containing detergent composition
WO2009034355A1 (fr) * 2007-09-14 2009-03-19 Reckitt Benckiser N.V. Composition de détergent contenant de la pyrrolidone
WO2010076165A1 (fr) * 2008-12-15 2010-07-08 Henkel Ag & Co. Kgaa Produit de lavage pour lave-vaisselle
WO2010072603A1 (fr) * 2008-12-15 2010-07-01 Henkel Ag & Co. Kgaa Agent de lavage pour lave-vaisselle
US8758520B2 (en) 2011-05-20 2014-06-24 Ecolab Usa Inc. Acid formulations for use in a system for warewashing
US9481857B2 (en) 2011-05-20 2016-11-01 Ecolab Usa Inc. Acid formulations for use in a system for warewashing
US20120318303A1 (en) * 2011-06-14 2012-12-20 Ecolab Usa Inc. Non-bleaching procedure for the removal of tea and coffee stains
EP2721132A2 (fr) * 2011-06-14 2014-04-23 Ecolab USA Inc. Procédure sans agent de blanchiment pour l'élimination de taches de thé et de café
EP2721132A4 (fr) * 2011-06-14 2014-11-26 Ecolab Usa Inc Procédure sans agent de blanchiment pour l'élimination de taches de thé et de café
AU2012269962B2 (en) * 2011-06-14 2016-05-12 Ecolab Usa Inc. Non-bleaching procedure for the removal of tea and coffee stains
US9139800B2 (en) 2011-12-13 2015-09-22 Ecolab Usa Inc. Concentrated warewashing compositions and methods

Also Published As

Publication number Publication date
EP0806472B2 (fr) 2004-10-13
EP0806472B1 (fr) 2001-10-10
DE59704832D1 (de) 2001-11-15
ATE206752T1 (de) 2001-10-15
DE19618725A1 (de) 1997-11-13

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