EP1148955B1 - Procede de nettoyage de bouteilles consignees - Google Patents

Procede de nettoyage de bouteilles consignees Download PDF

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Publication number
EP1148955B1
EP1148955B1 EP00902629A EP00902629A EP1148955B1 EP 1148955 B1 EP1148955 B1 EP 1148955B1 EP 00902629 A EP00902629 A EP 00902629A EP 00902629 A EP00902629 A EP 00902629A EP 1148955 B1 EP1148955 B1 EP 1148955B1
Authority
EP
European Patent Office
Prior art keywords
cleaning
cleaning solution
enzyme
bottles
knpu
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.)
Expired - Lifetime
Application number
EP00902629A
Other languages
German (de)
English (en)
Other versions
EP1148955A1 (fr
Inventor
Siegfried Bragulla
Brian Glanville
Andreas Potthoff
Harald Kluschanzoff
Alfred Laufenberg
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.)
Ecolab Inc
Original Assignee
Ecolab Inc
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
Application filed by Ecolab Inc filed Critical Ecolab Inc
Publication of EP1148955A1 publication Critical patent/EP1148955A1/fr
Application granted granted Critical
Publication of EP1148955B1 publication Critical patent/EP1148955B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • C11D3/38618—Protease or amylase in liquid compositions only
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto 
    • B08B9/08—Cleaning containers, e.g. tanks
    • B08B9/20—Cleaning containers, e.g. tanks by using apparatus into or on to which containers, e.g. bottles, jars, cans are brought
    • 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
    • C11D2111/10—Objects to be cleaned
    • C11D2111/14—Hard surfaces
    • C11D2111/18—Glass; Plastics

Definitions

  • the invention described below is in the field of commercial Purification and relates to a process for the purification of Refillable bottles and similar containers that accept food serve, according to the preamble of claim 1.
  • a method of this kind is for example from the document DE -A- 3,205,956 known.
  • the reusable containers can be made of a variety of Materials are made, in particular of glass or of plastics, such as polycarbonate (PC), polyvinyl chloride (PVC), polyesters (for example polyethylene terephthalate, PET or polyethylene naphthenate, PEN) and polyethylene (PE).
  • PC polycarbonate
  • PVC polyvinyl chloride
  • PET polyethylene naphthenate
  • PE polyethylene
  • the containers can be adapted in their shape for a variety of applications be.
  • the pre-rinse is often called as Vorweiche and the zone in which the Treatment with the cleaning solution takes place, referred to as lye zone.
  • Both for the Pre-rinse, cleaning and rinsing can be several separate zones be present and depending on the purpose are other zones, such as a upstream depletion of the bottles provided.
  • the contacting of the bottles with the cleaning fluids can be done differently in each zone and is usually as sprayed or dipping process formed.
  • the bottles are when passing through the The system is initially heated slowly in the pre-cleaning area and clearly in the lye area treated at elevated temperature and then again in the following Nachêtzonen cooled.
  • This Area comprises at least one zone in which the bottles in dependence of the Bottle material with a cleaning solution at high temperatures of usually be treated at about 60 to 90 ° C. Particularly good cleaning effects are achieved if 1 to 3 alkaline baths are combined with a subsequent lye spraying zone.
  • a lye is a cleaning solution in the conventional cleaning process used, the approximately 1 - 3% sodium hydroxide and additives to sequestering agents, surfactants and other cleaning-active components. Only with such highly alkaline So far leaches were believed to be a satisfactory cleaning of the bottles in a short time to reach.
  • alkaline proteases are also related to commercial Textile washing process known from DE 44 11 223.
  • the present invention has the object to develop an improved method for cleaning bottles, with which the disadvantages of the previously customary methods are avoided as far as possible without To have to accept reductions in the cleaning result.
  • the invention therefore provides a method for cleaning reusable bottles and similar containers, which serve to absorb food in which the used Bottles transported in a bottle washing machine through several cleaning zones of which at least one zone of the pre-rinse, at least one subsequent zone the treatment with a cleaning solution at elevated temperature and at least one serve another zone of rinsing with water, wherein the cleaning solution at least an enzyme for enhancing the cleaning performance is added and the enzyme a is highly alkaline protease. It is the use of highly alkaline Proteases alone or together with other enzymes, such as amylases, cellulases, lipases, Oxidoreductases, possible.
  • the new method it is surprisingly possible in similar short times as with the conventional high alkaline cleaning liquors an at least equivalent Cleaning result at significantly lower temperatures and significantly lower pH values to reach. In many cases, despite lower drug concentration in the Cleaning liquor even a significantly better cleaning result than conventional achieved highly alkaline cleaning liquors.
  • the new process is particularly environmentally friendly. The corrosion of the Bottle surfaces is vanishingly small and due to the low working temperatures In addition, energy is saved.
  • enzymes can be according to the invention in addition to the highly alkaline proteases all use those enzymes that have a degrading effect on the to be removed Food residues and impurities have.
  • Particularly preferred are the above mentioned enzymes from the group amylases, cellulases, glycosidases, lipases and Oxidoreductases.
  • the cleaning process the each to be removed food residues are specifically adapted. So become the Removal of proteinaceous impurities used the highly alkaline proteases, while for starchy impurities, preferably amylases and for the Removal of fatty contaminants lipases can be used.
  • the combination Several enzymes for different substrates are recommended in the presence of mixed Impurities.
  • Highly alkaline proteases are also known as enzyme preparations in the Commercially available, for example, under the names Savinase®, Esperase®, Durazym®, Maxacal®, Plurafect®, Opticlean® and BLAP®. These preparations contain in addition to the actual active enzyme usually larger amounts of stabilizers and carriers.
  • enzymes preferably 0.2 to 100 units per liter of application solution used. Basically, however, in all cases, the necessary Amount of enzyme after the cleaning task to be solved, so that in individual cases the above values were easily exceeded but also fallen short of can be.
  • the preparation of the cleaning solution used in the invention from the highly concentrated liquid or powdered enzyme preparations which are offered by different manufacturers.
  • the these enzyme preparations admixed with cosolvents, adjuvants or solvents then also become part of the cleaning solution.
  • cosolvents, adjuvants or solvents are used for the process according to the invention under the name Savinase®, Maxacal® and BLAP® preparations of highly alkaline proteases.
  • the finished, intended to act on the bottles enzyme-containing cleaning solutions generally have a slightly alkaline pH, preferably between about 8 and about 12 and especially between about 8.5 and about 9.5 (measured at 20 ° C) is.
  • a pH value well below the value in Maximum activity of the enzyme is chosen especially when it matters To maintain as long as possible the activity of the enzyme in the application solution.
  • the pH can be determined by methods known per se, for example by using puffemd acting substances or by a device for automatic dosage of the necessary amount of alkali can be adjusted.
  • the cleaning solution at elevated temperature act on the bottles, with significantly lower temperatures than in the past be sufficient cleaning with highly alkaline solutions.
  • the exposure temperatures are between about 30 and about 70 ° C, in particular between about 40 and about 55 ° C. Despite these low exposure temperatures are no longer exposure times than conventional cleaning methods necessary to achieve a perfect cleaning result.
  • the inventively used enzyme-containing cleaning solutions containing further active ingredients and auxiliaries are mentioned here, in principle, surfactants from all known classes can be used. However, preference is given to nonionic, cationic and amphoteric surfactants which in turn the nonionic surfactants have the greatest importance.
  • auxiliaries and additives are enzyme stabilizers, such as soluble calcium salts and borates, compounds with threshold effect, complexing agents, Builders, thickeners, antioxidants, foam inhibitors and preservatives.
  • Suitable nonionic surfactants are in particular the addition products of long-chain Alcohols, alkylphenols, amides and carboxylic acids with ethylene oxide (EO) optionally together with propylene oxide (PO).
  • EO ethylene oxide
  • PO propylene oxide
  • these include, for example, the Addition products of long-chain primary and secondary alcohols with 12 to 18 carbon atoms in the chain, especially of fatty alcohols and oxo alcohols of these Chain length with 1 to 20 moles of EO and the addition products of fatty acids with 12 to 18 C-atoms in the chain with preferably 2 to 8 moles of ethylene oxide.
  • the mixed addition products of ethylene and propylene oxide and Fatty alcohols having 12 to 18 carbon atoms especially those containing about 2 moles of EO and contain about 4 moles of PO in the molecule.
  • the open terminal functional alcohol group may also be closed by an alkyl group.
  • the alkyl group used is preferably methyl or butyl.
  • Nonionic surfactants are for example those under the names Dehypon® LS24, Dehypon® LS54, Eumulgin® 05, Dehydol® LT8, Dehydol® LT8, Dehydol® LT6, Dehydol® LS6 and Dehydol® LT104 from the company Henkel KGaA offered fatty alcohol alkoxylates.
  • Other suitable nonionic surfactants are the esters of fatty acids with 6 to 12 carbon atoms and polyols, especially carbohydrates, e.g. Glucose.
  • nonionic surfactants in the cleaning solutions used in the invention are contained therein, their content there is preferably about 0.001 to about 0.08 wt .-%, in particular about 0.01 to about 0.05 wt .-%, based on the ready to use solution.
  • Suitable cationic surfactants are, in particular, aliphatic and heterocyclic quaternary ammonium compounds and quaternary phosphonium compounds which have at least one long-chain C 8 to C 18 -alkyl radical at the quaternary center.
  • Examples of such cationic surfactants are cocoalkyl benzyl dimethyl ammonium chloride, dioctyl dimethyl ammonium chloride and tributyl tetradecyl phosphonium chloride.
  • amphoteric surfactants are C 8 to C 18 fatty acid amide derivatives having a betaine structure, in particular derivatives of glycine, for example cocoalkyldimethylammonium betaine.
  • Cationic or amphoteric surfactants are used in amounts preferably not more than 0.08 wt .-%, in particular between 0.001 and 0.02 wt .-%, in the cleaning solution.
  • Suitable compounds with a threshold effect are polyphosphates, phosphonic acids and polycarboxylates.
  • Suitable polyphosphates are in particular orthophosphate, Pyrophosphate, tripolyphosphate, tetrapolyphosphate, hexametaphosphate.
  • suitable Phosphonic acids are primarily nitrilotrimethylenephosphonic acid, hydroxyhexanediphosphonic acid, Phosphonobutanetricarboxylic acid and other derivatives of phosphonic acid.
  • Suitable Polycarboxylates preferably come from the class of polyacrylates, Polysuccinates, polyasparaginates or other salts of polyorganic Acids.
  • Suitable builders are the already mentioned polyphosphates, phosphatonates, Gluconates, citrates, EDTA, NTA and other complexing agents suitable as builders. Threshold compounds are preferably used in amounts of from about 0.002 to about 0.05 weight percent, more preferably from about 0.004 to about 0.02 weight percent based on the finished application solution.
  • the individual components of the solution can in principle be metered separately and dissolved in the water.
  • prefabricated concentrates which contain several or preferably all constituents in the correct mixing ratio, so that only a few metering steps or only one is required.
  • Particularly easy to dose are liquid concentrates, but are also concentrated formulations in the form of powder, tablets or pastes into consideration.
  • Suitable additional constituents of liquid concentrates are solubilizers, such as cumene sulfonate, xylene sulfonate and octylsulfonate, although it is of course also possible to use other customary solubilizers.
  • solubilizers are chosen as needed, and is preferably about 1 to about 10 wt%, more preferably about 2 to about 5 wt%, based on the concentrate as a whole.
  • Liquid concentrates may further contain larger amounts of organic solvents, in particular polyols, such as propylene glycol or glycerol.
  • Liquid cleaning concentrate Enzyme, in particular protease 1 to 10% by weight, preferably 3 to 6% by weight propylene glycol 5 to 80% by weight, preferably 20 to 40% by weight glycerin 5 to 20% by weight, preferably 5 to 8% by weight nonionic surfactant 2 to 40% by weight, preferably 5 to 25% by weight enzyme stabilizer 1 to 10% by weight, preferably 2 to 5% by weight Quaternary ammonium compounds, for example dioctyldimethylammonium chloride 1 to 40% by weight, preferably 2 to 5% by weight Rest to 100% water
  • Solid detergent concentrate Enzyme, in particular protease 1 to 10% by weight, preferably 3 to 6% by weight Sodium and / or potassium carbonate 5 to 50% by weight, preferably 10 to 30% by weight Sodium and / or potassium bicarbonate 5 to 50% by weight, preferably 10 to 30% by weight
  • Nonionic surfactant 2 to 40% by weight preferably 5 to
  • the cleaning agent concentrates are added to the water in amounts of from about 0.05 to about 0.5% by weight, preferably 0.1 to 0.2% by weight added an application-ready cleaning solution for the inventive method receive.
  • the cleaning test was carried out in a single-end bottle washing machine, as is common in practice and by machine manufacturers like Krones, KHS or Simonazzi are expelled.
  • the treatment sequence in the Machine included two pre-softening stages, one lye softening zone, two lye spraying, a lye, two hot water baths with spray for rinsing the cleaning solution and a cold water zone with fresh water spray.
  • the cleaning attempt had the goal of heavily contaminated glass milk bubbles, which as normal return goods returned by the consumer to the milk filling area were, within a lye treatment time (Laugenweiche, Laugenspritzung and lye) of about 8 minutes to clean.
  • the experiment was conducted with 50,000 soiled bottles in a conventional Cleaning liquor performed.
  • the liquor contained in detail an aqueous Solution of about 2% NaOH, 0.02% sodium gluconate, 0.02% sodium citrate, 0.04% Dehypon® LT 104, 0.02% NTA.
  • the entire exposure time including diving and Spraying was about 8 minutes and the exposure temperature was about 85 ° C. From 50,000 bottles were not completely cleaned after visual inspection of 258 bottles.
  • the new cleaning solution contained in detail an aqueous solution of about 0.005% Esperase, 0.036% butyl glycol, 0.020 Dehypon® LT 104.
  • the total exposure time was also about 8 minutes and the action temperature was about 50 ° C. From 50,000 soiled bottles were after the cleaning process by visual inspection still 26 bottles with residues identified.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Wood Science & Technology (AREA)
  • Organic Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Detergent Compositions (AREA)
  • Cleaning In General (AREA)

Claims (9)

  1. Procédé de nettoyage de bouteilles consignées et de récipients semblables servant à recevoir des aliments, dans lequel les bouteilles utilisées passent, dans une machine de lavage des bouteilles, par plusieurs zones de nettoyage, parmi lesquelles au moins une zone de prélavage, au moins une zone suivante de traitement avec une solution de nettoyage à température élevée et au moins une autre zone de rinçage à l'eau, caractérisé en ce qu'à la solution de nettoyage est rajoutée au moins une enzyme pour renforcer la puissance de nettoyage, et en ce que l'enzyme est une protéase hautement alcaline.
  2. Procédé selon la revendication 1, dans lequel le traitement des bouteilles avec la solution de nettoyage s'effectue à des températures entre 30°C et 70°C, de préférence entre 40°C et 55°C.
  3. Procédé selon l'une des revendications 1 ou 2, dans lequel est ajoutée dans la solution de nettoyage une enzyme du groupe des protéases, amylases, cellulases, lipases, oxydoréductases et des mélanges de ces enzymes.
  4. Procédé selon l'une quelconque des revendications 1 à 3, dans lequel au moins une protéase est ajouté dans la solution de nettoyage.
  5. Procédé selon la revendication 4, dans lequel est ajoutée la protéase hautement alcaline, du groupe des sérine-protéases appelées subtilisine.
  6. Procédé selon l'une des revendications 4 ou 5, dans lequel la solution de nettoyage contient 0,16 à 160 KNPU, de préférence 0,8 à 80 KNPU et en particulier, 1,6 à 16 KNPU de protéase par litre.
  7. Procédé selon l'une quelconque des revendications 1 à 6, dans lequel la solution de nettoyage présente un pH dans la plage de 8 à 12, de préférence dans la plage de 8,5 à 9,5.
  8. Procédé selon l'une quelconque des revendications 1 à 7, dans lequel la solution de nettoyage contient d'autres principes actifs et adjuvants du groupe des tensioactifs, des substances tampons, des stabilisants enzymatiques, des composés à effet de seuil, des agents de complexion, des adjuvants pour détergent, des épaississants, des anti-oxydants, des agents anti-mousse, des conservateurs et leurs mélanges.
  9. Procédé selon l'une quelconque des revendications 1 à 8, dans lequel la solution de nettoyage est produite à partir d'un concentré contenant des enzymes, par dissolution dans l'eau.
EP00902629A 1999-02-04 2000-01-25 Procede de nettoyage de bouteilles consignees Expired - Lifetime EP1148955B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19904512 1999-02-04
DE19904512A DE19904512A1 (de) 1999-02-04 1999-02-04 Verfahren zur Reinigung von Mehrwegflaschen
PCT/EP2000/000532 WO2000045969A1 (fr) 1999-02-04 2000-01-25 Procede de nettoyage de bouteilles consignees

Publications (2)

Publication Number Publication Date
EP1148955A1 EP1148955A1 (fr) 2001-10-31
EP1148955B1 true EP1148955B1 (fr) 2005-03-09

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Family Applications (1)

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EP00902629A Expired - Lifetime EP1148955B1 (fr) 1999-02-04 2000-01-25 Procede de nettoyage de bouteilles consignees

Country Status (7)

Country Link
US (1) US6530386B1 (fr)
EP (1) EP1148955B1 (fr)
AT (1) ATE290439T1 (fr)
AU (1) AU2439800A (fr)
DE (2) DE19904512A1 (fr)
PL (1) PL350164A1 (fr)
WO (1) WO2000045969A1 (fr)

Families Citing this family (17)

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DE10141239C2 (de) * 2001-08-23 2003-12-18 Korn Gmbh Verwendung flüssiger, wasserverdünnbarer Pre-Rinsing Zusammensetzungen und Verfahren zum Aufbringen derselben
US20040235680A1 (en) * 2002-09-18 2004-11-25 Ecolab Inc. Conveyor lubricant with corrosion inhibition
AU2003270729A1 (en) * 2002-09-18 2004-04-08 Ecolab Inc. Additive for use in bottle washing compositions additive
US7125204B2 (en) 2003-10-31 2006-10-24 Finn Corporation Portable pneumatic blower
US9133426B2 (en) 2012-05-14 2015-09-15 Ecolab Usa Inc. Label removal solution for returnable beverage bottles
US9487735B2 (en) 2012-05-14 2016-11-08 Ecolab Usa Inc. Label removal solution for low temperature and low alkaline conditions
WO2014200658A1 (fr) 2013-06-13 2014-12-18 Danisco Us Inc. Alpha-amylase issue de promicromonospora vindobonensis
WO2014200656A1 (fr) 2013-06-13 2014-12-18 Danisco Us Inc. Alpha-amylase provenant de streptomyces umbrinus
WO2014200657A1 (fr) 2013-06-13 2014-12-18 Danisco Us Inc. Alpha-amylase provenant destreptomyces xiamenensis
WO2014204596A1 (fr) 2013-06-17 2014-12-24 Danisco Us Inc. Alpha-amylase issue d'un membre de la famille des bacillaceae
WO2015050723A1 (fr) 2013-10-03 2015-04-09 Danisco Us Inc. Alpha-amylases provenant de exiguobacterium, méthodes d'utilisation de celles-ci
WO2015050724A1 (fr) 2013-10-03 2015-04-09 Danisco Us Inc. Alpha-amylases faisant partie d'un sous-ensemble d'exiguobacterium, et procédés d'utilisation correspondants
MX2016006489A (es) 2013-11-20 2016-08-03 Danisco Us Inc Alfa-amilasas variantes que tienen susceptibilidad reducida a la escision por proteasas y metodos de uso.
DE102015008314A1 (de) 2015-06-30 2017-01-05 Krones Ag Behandlungsmaschine zum Behandlen von Behältnissen und/oder Lebensmitteln mit Zuführung eines Arbeitsmediums
BR112018015267B1 (pt) 2016-02-18 2023-03-07 Ecolab Usa Inc Método e composição para remover sujeiras, rótulos e outro material adesivo de uma superfície
WO2017173190A2 (fr) 2016-04-01 2017-10-05 Danisco Us Inc. Alpha-amylases, compositions et procédés
WO2017173324A2 (fr) 2016-04-01 2017-10-05 Danisco Us Inc. Alpha-amylases, compositions et procédés

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DE3205956A1 (de) * 1982-02-19 1983-09-15 Robert 6141 Einhausen Becker Vorrichtung zur flaschenreinigung, bei der waerme zurueckgewonnen und frischwasser eingespart wird
DE3377140D1 (en) * 1982-11-26 1988-07-28 Unilever Nv Liquid detergent compositions
DE4014747A1 (de) * 1990-05-08 1991-11-14 Henkel Kgaa Reinigungsmittel fuer kunststoff-mehrweggebinde oder kunststoffbeschichtete mehrwegglasgebinde sowie verfahren zu deren reinigung
DE4411223A1 (de) * 1994-03-31 1995-10-05 Solvay Enzymes Gmbh & Co Kg Verwendung alkalischer Proteasen in gewerblichen Textilwaschverfahren
WO1996000277A1 (fr) * 1994-06-23 1996-01-04 Unilever N.V. Compositions pour le lavage de la vaisselle
US5861366A (en) * 1994-08-31 1999-01-19 Ecolab Inc. Proteolytic enzyme cleaner
US5858117A (en) * 1994-08-31 1999-01-12 Ecolab Inc. Proteolytic enzyme cleaner
DE19717329A1 (de) * 1997-04-24 1998-10-29 Henkel Ecolab Gmbh & Co Ohg Flüssige Enzymzubereitung und ihre Verwendung
DE19838939A1 (de) * 1998-08-27 2000-03-09 Henkel Ecolab Gmbh & Co Ohg Verfahren zur Reinigung von Milcherhitzern
WO2001000764A2 (fr) * 1999-06-25 2001-01-04 The Penn State Research Foundation Composition eliminant les taches, contenant des enzymes proteolytiques particulieres isolees et pures

Also Published As

Publication number Publication date
PL350164A1 (en) 2002-11-18
US6530386B1 (en) 2003-03-11
AU2439800A (en) 2000-08-25
EP1148955A1 (fr) 2001-10-31
ATE290439T1 (de) 2005-03-15
DE50009724D1 (de) 2005-04-14
WO2000045969A1 (fr) 2000-08-10
DE19904512A1 (de) 2000-08-17

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