EP0700265B2 - Verfahren und vorrichtung zur maschinellen geschirreinigung - Google Patents

Verfahren und vorrichtung zur maschinellen geschirreinigung Download PDF

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Publication number
EP0700265B2
EP0700265B2 EP94918791A EP94918791A EP0700265B2 EP 0700265 B2 EP0700265 B2 EP 0700265B2 EP 94918791 A EP94918791 A EP 94918791A EP 94918791 A EP94918791 A EP 94918791A EP 0700265 B2 EP0700265 B2 EP 0700265B2
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EP
European Patent Office
Prior art keywords
enzyme
metering
detergent
cleaning
process according
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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.)
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EP94918791A
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German (de)
English (en)
French (fr)
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EP0700265B1 (de
EP0700265A1 (de
Inventor
Jacques Breyer
Günter Hellmann
Dieter Hemm
Klaus Wilbert
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Ecolab GmbH and Co OHG
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Ecolab GmbH and Co OHG
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Priority claimed from DE4324106A external-priority patent/DE4324106C1/de
Application filed by Ecolab GmbH and Co OHG filed Critical Ecolab GmbH and Co OHG
Publication of EP0700265A1 publication Critical patent/EP0700265A1/de
Publication of EP0700265B1 publication Critical patent/EP0700265B1/de
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    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L15/00—Washing or rinsing machines for crockery or tableware
    • A47L15/42—Details
    • A47L15/44—Devices for adding cleaning agents; Devices for dispensing cleaning agents, rinsing aids or deodorants

Definitions

  • the invention is directed to a method for Machine dishwashing in commercial Dishwashers in which a detergent and a supportive, effective, preferably carbohydrate-degrading enzyme, in particular Amylase containing cleaning enhancer in the dishwasher be metered.
  • a detergent and a supportive, effective, preferably carbohydrate-degrading enzyme in particular Amylase containing cleaning enhancer in the dishwasher be metered.
  • the invention relates to a device for performing of the process involving a detergent dosing system and a dosing system for another active ingredient having associated pump and pump control.
  • a commercial dishwasher contains for example, several consecutively arranged Tanks from which rinse or wash liquor against the Dishwasher sprayed crockery becomes.
  • the tanks are cascaded, wherein the rinsing or washing liquor the tanks successively from the dish outlet end to the dish inlet end goes through, so that the degree of pollution the rinse or wash liquor from the outlet end to Inlet end increases.
  • the Dishwashers supplied fresh water.
  • the required amount of detergent is in at least a wash tank, also referred to as a dosing tank added.
  • the metered addition of Detergent automatically depending on the Conductivity or the pH of the wash liquor or with the addition of liquid or already dissolved in water powdery cleaner optionally also by means of a timed dosing pump.
  • DE-A-4 110 764 a generic Known method. This is in a Type pre-wash or pre-rinse first a mechanical Pre-cleaning the dishes of coarse impurities and a sprinkling of the dishes with one concentrated surfactant solution and subsequent Exposing the concentrated surfactant solution in one commercial dishwasher. These process steps can also be done before the actual Dishwasher in a separate workstation be performed.
  • the concentrated Surfactant solution is slightly acidic to slightly alkaline discontinued and contains carbohydrate-degrading Enzyme, in particular amylase. Be as contact time 10 to 90 seconds, which is within the usual Contact times between detergent and Dishes in commercial dishwashing lies.
  • a method for machine dishwashing in commercial dishwashers in which a Detergent and a supportive in this effect another active ingredient of the rinsing or washing liquor are added and a device for performing of the process involving a detergent dosing system and a dosing system for another Active substance with assigned pump and pump control are known from DE-A-39 20 728.
  • this known method for machine Dishwashing in commercial dishwashers is in addition to the cleaning agent than this in its effect supporting further active ingredient Active oxygen in the dosing or washing tank of the Dishwasher metered. To maintain the oxygen concentration in the wash tank at Interruptions of the rinse cycle is during the Interruptions of active oxygen in the wash tank replenished.
  • a method and apparatus for machine Dishwashing in commercial dishwashers in which by means of a detergent dosing and a dosing system for another Active substance with assigned pump and pump control the wash liquor of a dishwasher the two different active ingredients, namely detergents and, for example, a bleach, dosed is still from US-A-3,490,467 well.
  • the object of the invention is to provide a solution the machine dishwashing in commercial Dishwashers the formation of a Starch coating on the dishes sustainably prevented.
  • the cleaning booster as an ingredient of, in particular based on phosphate or nitriloacetic acid or their salts (NTA) formulated, lower alkyl Cleaning agent and / or additionally in Combination to low alkaline detergent the rinsing or washing liquor to the at least one Spüloder Wash tank added to the dishwasher becomes.
  • NTA nitriloacetic acid or their salts
  • the lower alkaline cleaner may optionally contain other than the listed complexing agents, as far as desired.
  • the invention in the rinsing or washing liquor concentration from 0.5 to 15 g / l of low alkaline detergent set.
  • the invention provides that the enzyme-containing cleaning booster during the regular Dishwasher operation with conventional Cleaner concentration in the rinsing or washing liquor of 0.5 to 8 g / l and / or during a periodic period Basic cleaning with increased detergent concentration in the rinsing or washing liquor from 3 to 15 g / l in the Spüloder Wash liquor is metered.
  • the invention provides in an embodiment that the cleaning amplifier is replenished as the enzyme degradation.
  • the enzyme degradation or the enzyme breakdown (Consumption) during standstill phases of the dishwasher operation less than during the Rinse phases, so that the invention in more useful Further training provides that the additional dosage in standstill phases is low compared to rinsing phases.
  • the enzyme-containing cleaning booster can, like usual cleaning agents either in the at least a dosing or washing tank of the dishwasher dosed, but also in the rinse line and / or the spray system of the industrial dishwasher through-flowing liquid metered and supplied to the dishwasher in this way become.
  • the invention therefore provides as a development before that detergent and cleaning booster be metered separately into the rinsing or washing liquor.
  • the enzyme-containing detergent enhancer parallel or subsequently to the Lower-Alpine Cleaning agent in the rinsing or washing liquor is metered.
  • a cleaning booster is metered in, which is about 0.01 up to 0.6% by weight, preferably 0.45 to 0.55% by weight, Enzyme, in particular amylase, and from 10 to 25% by weight, preferably 15 to 20 wt .-%, propylene glycol, in particular Propylene glycol-1,2, and a corresponding Contains amount of water, as the invention in an embodiment provides.
  • the cleaning booster can act as an enzyme Amylase, lipase, protease or others, in particular carbohydrate-degrading enzymes, either individually or in suitable mixtures.
  • an enzyme-free, liquid or powdery, low alkaline cleaning agent in Combination with enzyme-containing cleaning enhancer is used.
  • the invention provides Design before that during detergent dosing in the rinsing or washing liquor an enzyme-free, in particular liquid, low-alkaline cleaning agent and to the extent of the cleaner consumption in parallel metering the enzyme-containing cleaning booster metered becomes.
  • an enzyme-free, in particular liquid, low-alkaline cleaning agent and to the extent of the cleaner consumption in parallel metering the enzyme-containing cleaning booster metered becomes.
  • Unlike the following Case of the combination of enzyme-containing detergent with enzyme - containing cleaning booster is used in Case of combination of enzyme-free detergent with enzyme-containing cleaning booster also during the dosage or dosing of Cleaning agent parallel to the detergent enzyme-containing Cleaning amplifier in the at least one Dosing or washing tank of the industrial dishwasher metered.
  • the Enzyme-containing cleaning enhancer only during or immediately after completion of dosing breaks of the cleaning agent and / or the interruptions or shutdown phases of the dishwasher operation metered into the rinsing or washing liquor. While the times of the active rinse cycle while which the detergent in the wash tank of Dishwasher is metered, none occurs Dosing of the enzyme-containing cleaning agent.
  • the enzyme-containing Cleaning enhancer as part of the enzyme degradation or Enzyme decomposition (consumption) to maintain the Enzyme concentration is metered into the rinsing or washing liquor becomes what the invention continues to provide.
  • the invention provides in an embodiment that the under Rinsing conditions in a commercial dishwasher an enzyme breakdown or enzyme breakdown (consumption) underlying enzyme-containing cleaning enhancers in case of interruptions or stoppages Dishwasher operation and / or dosing breaks of the cleaning agent or cleaning agent in the rinse or wash liquor in an amount is replenished during the respective interruption or standstill phase and / or dosing break occurring enzyme degradation or enzyme breakdown (consumption) compensates, so that after completion of the respective Interruption or stoppage phase and / or Dosierpause the machine operation with essentially same enzyme concentration in the rinsing or washing liquor as before the respective interruption or stoppage phase and / or dosing break is continued. This ensures that every active cleaning phase of the rinse cycle in a commercial Dishwasher to achieve the desired cleaning result
  • the invention provides that immediately after completion or during interruptions or shutdown phases and / or the Dosing intervals of the cleaning agent in the extent of Enzyme degradation or enzyme breakdown (consumption) of enzyme-containing cleaning enhancers for maintenance the enzyme concentration in the rinsing or washing liquor is dosed.
  • the invention provides further Design before that the enzyme concentration in the rinsing or Naschflotte during the respective Interruption or stoppage phase and / or during the metering pauses of the cleaning agent through a maintenance dosage of the enzyme-containing cleaning enhancer is maintained. Is an advantage it here, if the maintenance dosing in individual Dosierh paragraph takes place, as the invention in development provides.
  • the design aims Accordingly, primarily to a maintenance dosing the enzyme-containing cleaning agent in downtime the dishwasher between two successive rinsing phases or during dosing intervals between two dosing times of the cleaning agent.
  • Through the maintenance dosage is achieved that in the degree of enzyme degradation or enzyme breakdown (consumption) new, enzyme-containing Cleaning amplifier in the at least one metering or Wash tank arrives.
  • the wash tank or the Washing liquor of the dishwasher is thus constantly kept in readiness for a new rinse phase. At the beginning of each rinse phase is immediately with enzymes sufficiently offset or sufficiently high Enzyme-containing wash liquor available.
  • cleaner When using enzyme for immediate rinsing Sufficient in itself, in particular powdery, cleaner is the enzyme-containing Cleaning amplifier only during the Standstill phases or metering pauses of the cleaning agent in the degree of enzyme breakdown in the at least replenished a wash tank.
  • a enzyme-free cleaning agent in particular a Liquid cleaner, takes place next to the maintenance dosing during the dosing for the detergent a Parallel dosing of the enzyme-containing cleaning enhancer. It is therefore when using the enzyme-free detergent during the rinsing phase enzyme in the Dimensions of the cleaner consumption and during the standstill phases or the detergent dosing breaks in Measurements of enzyme degradation or enzyme breakdown enzyme-containing RenbergverParkr in the wash tank or the Rinsing or washing liquor dosed.
  • the parallel dosage allows the use of enzyme-containing cleaning enhancer such as As amylase solution, with the usual enzyme-free alkaline, in particular Lower alkaline, detergents can not be formulated are.
  • enzyme-containing cleaning enhancer such as As amylase solution
  • the usual enzyme-free alkaline in particular Lower alkaline
  • detergents can not be formulated are.
  • the dosing takes place of liquid or powdered detergent in Depending on the measured conductivity or the measured pH or timed only during certain dosing times. If the appropriate Split times or detergent dosing breaks so long, that one cleaning performance of the next Rinse phase interfering amount of enzyme decayed, it is within the scope of the invention, also in during the rinsing phase entering intermediate or Standard pauses of parallel dosing to the extent of Enzyme decomposition according to enzyme-containing cleaning booster, also as maintenance dosing, to meter.
  • the enzyme delivery rate of maintenance dosing optimized by enzyme activity determination becomes, as the invention further provides. After knowing the rate of decomposition of enzymes it can suffice, if at certain intervals enzyme-containing cleaning booster is postdosed.
  • the invention continues to provide suggest that after each decay of about 20% of original enzyme content in the rinsing or Wash liquor with the maintenance dosage of the enzyme-containing Cleaning booster is started.
  • a shock dosage of enzyme-containing cleaning enhancer wherein the at the amount supplied to the shock-absorbing enzyme-containing Cleaning amplifier the duration of the interruption adapted and dimensioned so that they during the break, enzyme degradation occurred or enzyme breakdown (consumption) compensates.
  • the Interruption or standstill phase of the machine operation and / or the detergent dosing break Therefore, no enzyme-containing cleaning booster the at least one dosing or washing tank or the Rinsing or washing liquor of the dishwasher fed.
  • the supply of enzyme-containing purification enhancer takes place only after completion of the respective Interruption or dosing break within a relative short time, so that the amount of enzyme that in the each interruption or Dosierpause consumed has been replaced.
  • the design of the amount of at the shock metering added cleaning amplifier takes place depending on the duration of the interruption and / or Dosierpause and depending from by a mathematical function, for example an e-function, describable course of the Enzyme decay. This ensures that consumed Enzyme is replaced pretty much without that a significant underdose or overdose he follows.
  • Embodiment of the invention takes into account that the time course of enzyme consumption in the essential an exponential function, where the concentration, starting from an initial concentration, decreases exponentially.
  • a practical shock dosage after a pause time t must consequently have the complementary function the course of enzyme consumption consequences.
  • shock dosage it is the same as with the maintenance dosage possible that during the detergent dosing in parallel dosing the enzyme-containing cleaning booster is added, if an enzyme-free cleaning agent use finds
  • a detergent dosing system separate dosing system for Dosage of an enzyme-containing cleaning agent, which is an operating condition for shock dosage after completion of interruptions or stoppages of the Dishwasher operation and / or Dosierpausen of the cleaning agent metering system.
  • the inventive device for performing of the method is basically marked by a separate from the detergent dosing Dosing system for the enzyme-containing cleaning agent, the latter being an operating state for Maintenance dosing and / or an operating condition has for shock dosage.
  • the detergent dosing system can be designed in the usual way z. B. as a metering pump in a liquid cleaner or as freshwater or liquor flushing at a Powder cleaner.
  • according to the invention is therefore in essentially only the detergent dosing system separate or separate dosing system for the enzyme-containing cleaning enhancer. This one owns either an operating state for maintenance dosing or an operating state for shock metering and is with the necessary for the respective operating condition provided technical facilities.
  • the cleaning booster metering system either only technical facilities for the operating state maintenance dosing or technical facilities for the Operating state shock dosage has, but it is also possible, the cleaning amplifier dosing system with technical equipment for both operating conditions equip so that the operator the respective desired operating state freely selectable is.
  • the device thus enables a maintenance dosing during interruptions or shutdown phases Dishwasher operation and / or the detergent dosing breaks or a shock dosage immediately after stopping interruptions or shutdown phases of the dishwasher operation and / or detergent dosing breaks, so that one by enzyme degradation or decomposition conditional consumption of the enzyme activity during this Time is balanced.
  • Such a Nach- or Additional dosage is required if the detergent supply the commercial dishwasher as usual about an enzyme content in the Washing liquor disregarding regulation takes place.
  • the device for Carrying out the shock dosage contains the device in a further development of the invention, a counter, the during the interruption periods regularly pause pulses be supplied. With these pause impulses the meter reading is not linear, but rather a stepwise approximated, to enzyme breakdown complementary function, in particular an e-function, increased accordingly, eventually with mini. painter counting rate asymptotically a given Approach the final value. After completion of the subbre. or standstill phase and resumption of the Machine operation is the counter of the achieved Counter reading on with constant clock rate linearly downwards counted until the zero count is reached. While of the counting process activate the count-down pulse a pump that causes the shock metering.
  • the duration The shock dosage depends thus on the during the Interrupt time reached meter reading.
  • the Duration of shock dosage is smaller by orders of magnitude as the duration of the interruption periods considered.
  • the shock dosage is similar within a period of seconds to minutes the drug consumption of several 10 minutes to Hours off.
  • the amount of the meter reading is therefore one Measure for the duration of the shock dosage.
  • This duration is in any case, much shorter than the duration of consideration Break times, so that the shock dosage of enzyme-containing cleaning agent with a lot higher rate than the reduction or disintegration (consumption) of the enzyme in the wash liquor.
  • This type of shock dosage is not just immediately after stopping interruptions or shutdown phases of the dishwasher operation, but if desired, also directly after completion of detergent dosing breaks.
  • the term "counter” is intended in this context be understood in a broad sense. It includes any counter, the supplied pause pulses of a given Function counts accordingly and thus too non-linear, z. B. an e-function following, payments allows.
  • the variation of the time interval of Pause impulses can accelerate (compression) or delay (stretching) of counting in Time range can be used. This can be the pause pulses with a constant time interval and multiplied by a factor whose temporal Course of an e-function corresponds. on the other hand It is also possible, the pause pulses with different time intervals to the counter supply.
  • the counter can also be a Summing included, with each pause pulse the count by a time varying Amount increased.
  • a frequency-controlled Peristaltic pump or a diaphragm pump is provided, as the invention continues provides.
  • a frequency-controlled Peristaltic pump or a diaphragm pump is provided, as the invention continues provides.
  • Such a pump can with a the Enzyme decomposition corresponding number of pump strokes operated per unit time. For the maintenance dosage then satisfy relatively little Pump strokes, while for the shock dosage and / or optionally for parallel dosing when used an enzyme-free cleaner a much larger Number of pump strokes is required.
  • a common Liquid cleaner metering pump 1 delivers from a liquid cleaning tank, For example, regulated by a conductivity or pH value measurement, liquid, enzyme-free detergent 2 through a line 3 to at least one dosing or (not shown) Washing tank of a dishwasher.
  • a frequency-controlled Peristaltic pump 4 is provided, the off a liquid, enzyme-containing cleaning amplifier.
  • This dosing system for liquid-finished, enzyme-containing cleaning booster 5 by means of an internal and / or external electronics such Controllable, that is a functional diagram of FIG. 2 adjusts, so a maintenance dosing 17, 18 and optionally parallel metering 16 of the cleaning agent 5 in addition to the detergent dosage is possible.
  • Fig. 2 shows three lines 7, 8 and 9 different On and off states (1/0) depending on from the time t.
  • the top line marked 7 is the operating state of the commercial dishwasher symbolizes.
  • the rinse phases or switch-on states are with 10, the interruptions or Standstill phases are designated by 11.
  • the 8th designated second line is the dosage of enzyme-free detergent 2, d. H. the active one Operating state of the liquid detergent metering pump 1, shown.
  • a two-time light-off the metering pump 1 during a machine-on state 10 accepted.
  • the corresponding Both detergent dosing times are 12 and 13 denotes.
  • An intermediate dosing break is at 14 and that of the interruption or the stoppage phase 11 of the dishwasher operation appropriate dosing interval is marked with 15.
  • Fig. 2 takes place during the Detergent dosing times 12, 13 of the detergent dosing pump 1 is a parallel metering 16 of the cleaning amplifier 5 with a quick succession of individual Pump strokes of peristaltic pump 4.
  • Each one Pump stroke is in the line 9 of FIG. 2 - as well also in the line 9a of Fig. 4 - as a single vertical Dash shown.
  • the work of Peristaltic pump 4 during dosing breaks 14, 15 of the dishwasher slowed down very much; in perform the appropriate maintenance doses 17, 18 significantly less pump strokes per unit time as during the parallel dosing 16 in the Rinse phases 10 and the detergent dosing 12, 13.
  • FIG. 3 shows that of a commercial one Dishwasher associated detergent dosing for an enzyme-containing, low-alkaline Powder cleaner 19 and the separate Dosing system for the enzyme-containing, liquid cleaning booster 5 and FIG. 4 in the three lines 7a, Figures 8a and 9a show the various on and off states (1/0) of the industrial dishwasher and the dosing systems as a function of the time t shows.
  • Fig. 3 is a metering system for enzyme-containing cleaning amplifier 5 with a frequency-controlled Peristaltic pump 4 provided the enzyme-containing cleaning amplifier 5 from a tank via a line 6 also to the at least one dosing or washing tank of the dishwasher promotes.
  • a frequency-controlled Peristaltic pump 4 provided the enzyme-containing cleaning amplifier 5 from a tank via a line 6 also to the at least one dosing or washing tank of the dishwasher promotes.
  • FIG. 1/2 operates the peristaltic pump 4 of FIG. 3/4 but only during the standstill phase 11 of the dishwasher and optionally during the metering break 14, as indicated in the line 9a of Fig. 4 is.
  • Lines 7a and 8a show identical operating states as lines 7 and 8 according to the embodiment of Fig. 1/2.
  • To operate the maintenance dosing 17, 18 and the below-discussed shock dosage SD and optionally desired parallel metering 16 is preferably a modification of a frequency-controlled Peristaltic pump 4, 27 used, wherein the pump used in the maintenance dosing Figs. 1 and 3 with the reference numeral 4 and at the shock metering pump used in FIG. 5 with the reference numeral 27 is provided.
  • shock dosage SD in lines 7, 7a and 8, 8a not and in lines 9, 9a thereby distinguish that the maintenance doses 17, 18 are omitted and instead after completion of the standstill phase 11 and / or the detergent dosing breaks 14, 15 or at the beginning of the rinsing phases 10 or the detergent dosing times 12, 13 as shock metering SD the at least one dosing or washing tank the Dishwasher enzyme-containing cleaning booster 5 is added.
  • the shock dosage is below explained in more detail with reference to FIGS. 5 to 7.
  • Fig. 5 is a commercial dishwasher 23, through which the dishes to be washed of left (inlet end) to the right (outlet end) conveyed through becomes.
  • the dishwasher 23 contains one behind the other several tanks from which rinsing or Wash liquor is sprayed against the dishes to then run back into the tanks.
  • the tanks are cascaded in a known manner, wherein the rinsing or wash liquor successively the tanks from the outlet end (right) to the inlet end (left), so that the degree of contamination of the Wash liquor from the outlet end to the inlet end increases.
  • the cleaning agent 2 is by a pump 25 in promoted metered form.
  • This pump 25 is of a pump control unit 26 driven.
  • the dosage of the detergent 2 takes place in dependence from the conductance or pH of the dishwasher 23 contained wash liquor.
  • the pump control unit 26 controls another pump 27, the off a tank 28, a liquid, enzyme-containing cleaning booster 5 metered into the dishwasher 23.
  • the cleaning booster contains enzymes like Amylase, lipase or protease.
  • the cleaning amplifier 5, which is contained in the tank 28 in liquid form, is by the pump 27, in which it is preferably is a peristaltic pump, in the Dishwasher 23 entered.
  • the pump 27 is controlled by impulses that you have via a control line 29 are supplied.
  • the pump drive takes place via a stepper motor, with each pulse in the control line 29 a certain flow rate of the pump 27 corresponds.
  • the control line 29 is connected to one of the Pump control unit 26 incoming operating pulse line 30 connected.
  • the operation pulse line 30 supplies 10 of the dishwasher during the operating state 23 operating pulses whose frequency is so is dimensioned that the pump 27 in the wash liquor a certain concentration of enzyme-containing cleaning enhancer 5 maintains, so a parallel dosing 16 is made.
  • a counter 32 is connected to a pause pulse line 31 of the pump control unit 26, a counter 32 is connected to a pause pulse line 31 of the pump control unit 26, a counter 32 is connected.
  • the pause pulse line 31 delivers at an interruption of the Operation or a standstill phase 11 of the dishwasher and / or dosing breaks 15 and optionally Dosing breaks 14 pulses with constant time interval to the counter 32nd
  • the counter 32 counts in the manner shown in FIG Way non-linear.
  • Fig. 6 along the abscissa is the Pause time t during an interruption or standstill phase 11 and / or a Dosierpause 14, 15 and Plotted along the ordinate, the count n.
  • At each pause pulse is the count of the counter 32 by a varying Counting step increased.
  • the size of the counting steps increases increasing pause time t.
  • the counting capacity of the Counter 32 here is 128.
  • the time course of Meter reading corresponds to a staircase curve 33, the an e-function 34 is approximated.
  • C t is the enzyme concentration at time t
  • C 0 is the initial concentration of the enzyme
  • ⁇ 1 / ⁇ .
  • V t is the shock dosing time for a pause time of t and V max is the maximum shock dosing time.
  • This function V t corresponds to the ideal curve 34 of FIG. 6, which is approximated by the stair curve 33.
  • the staircase curve 33 is implemented by circuitry in the counter 32 by means of a programmable logic device (PLD).
  • PLD programmable logic device
  • the non-linear counting function is achieved by varying the counting step size.
  • the clock rate of the pause pulses is the Zehrungsfunktion of the enzyme or the enzyme-containing cleaning amplifier 5 adapted.
  • the maximum count n max of the counter 32 is 128, which corresponds to a resolution of 7 bits.
  • the enzyme concentration drops exponentially from the value 1.
  • the break in operation whose duration is t 1 , is terminated at the beginning of the shock metering period t 2 .
  • the operation of the dishwasher begins, ie the active operating state 10 or the dosing times 12, 13 again, wherein in the initial phase a shock dosage SD is performed.
  • the enzyme concentration increases linearly steeply to the normal value of "1".
  • the subsequent operation is then carried out with this normal concentration.
  • the duration t 2 of the shock dosage SD is for example 1 to 2 minutes and is significantly shorter than the break t 1 .
  • the counter 32 progressively counts up as a result of the pause pulses, the count n developing according to the curve 33 in FIG. 6 and approaching asymptotically to the maximum count n max , which is finally reached when the pause in operation of Dishwasher is not interrupted before.
  • the maximum count n max corresponds to the maximum surge dosing time.
  • the maximum count is reached when the pause time is about 5 ⁇ , where ⁇ is the depletion time constant of the enzyme.
  • the clock rate of the counter 32 when counting down is selected so that at maximum Stoßdosierzeit just the target concentration C 0 of enzyme in the wash liquor is reached again.
  • the enzyme-containing cleaning booster during the regular dishwasher operation with usual detergent concentration in the rinsing or Wash liquor from 0.5 to 8 g / l and / or a periodic Basic cleaning with increased concentration of 3 up to 15 g / l in the rinsing or washing liquor only in parallel or subsequently to the lower alkaline cleaner of Rinsing or washing liquor added.
  • a commercial dishwasher with two Dosing systems, one for the cleaner and one for the cleaning amplifier, equip. For example These can be operated in parallel to each other Be metering pumps.
EP94918791A 1993-05-25 1994-05-25 Verfahren und vorrichtung zur maschinellen geschirreinigung Expired - Lifetime EP0700265B2 (de)

Applications Claiming Priority (7)

Application Number Priority Date Filing Date Title
DE4317295 1993-05-25
DE4317295 1993-05-25
DE4324106 1993-07-17
DE4324106A DE4324106C1 (de) 1993-05-25 1993-07-17 Verfahren und Vorrichtung zur Zudosierung von Wirkstoffen zu einer Spülmaschine
DE4324202A DE4324202C2 (de) 1993-05-25 1993-07-19 Verfahren und Vorrichtung zur maschinellen Geschirreinigung
DE4324202 1993-07-19
PCT/EP1994/001698 WO1994027488A1 (de) 1993-05-25 1994-05-25 Verfahren und vorrichtung zur maschinellen geschirreinigung

Publications (3)

Publication Number Publication Date
EP0700265A1 EP0700265A1 (de) 1996-03-13
EP0700265B1 EP0700265B1 (de) 1997-07-30
EP0700265B2 true EP0700265B2 (de) 2005-01-05

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Application Number Title Priority Date Filing Date
EP94918791A Expired - Lifetime EP0700265B2 (de) 1993-05-25 1994-05-25 Verfahren und vorrichtung zur maschinellen geschirreinigung

Country Status (12)

Country Link
US (1) US6718991B1 (tr)
EP (1) EP0700265B2 (tr)
JP (1) JP3342702B2 (tr)
AT (1) ATE155987T1 (tr)
CA (1) CA2163757C (tr)
DK (1) DK0700265T3 (tr)
ES (1) ES2105725T3 (tr)
FI (1) FI105071B (tr)
GR (1) GR3024425T3 (tr)
NO (1) NO311123B1 (tr)
TR (1) TR28788A (tr)
WO (1) WO1994027488A1 (tr)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9423234D0 (en) * 1994-11-24 1995-01-04 Unilever Plc Cleaning compositions and their use
GB9423952D0 (en) * 1994-11-24 1995-01-11 Unilever Plc Cleaning compositions and their use
DE19618725A1 (de) * 1996-05-09 1997-11-13 Weigert Chem Fab Verfahren und Kit zum Reinigen von Geschirr
DE19940645A1 (de) * 1999-08-26 2001-03-08 Henkel Ecolab Gmbh & Co Ohg Spülverfahren und Spülmaschine
JP2009019130A (ja) * 2007-07-12 2009-01-29 Adeka Corp 洗浄剤組成物及びそれを使用した食器類の洗浄方法
US9388369B2 (en) 2010-08-20 2016-07-12 Ecolab Usa Inc. Wash water maintenance for sustainable practices
US8888924B2 (en) 2012-08-24 2014-11-18 Ecolab Usa Inc. Freestanding detergent composition not requiring an automated dispenser
US20140308162A1 (en) 2013-04-15 2014-10-16 Ecolab Usa Inc. Peroxycarboxylic acid based sanitizing rinse additives for use in ware washing
US9023784B2 (en) 2012-09-13 2015-05-05 Ecolab Usa Inc. Method of reducing soil redeposition on a hard surface using phosphinosuccinic acid adducts
US8871699B2 (en) 2012-09-13 2014-10-28 Ecolab Usa Inc. Detergent composition comprising phosphinosuccinic acid adducts and methods of use
US9752105B2 (en) 2012-09-13 2017-09-05 Ecolab Usa Inc. Two step method of cleaning, sanitizing, and rinsing a surface
US9994799B2 (en) 2012-09-13 2018-06-12 Ecolab Usa Inc. Hard surface cleaning compositions comprising phosphinosuccinic acid adducts and methods of use
AU2014346511B2 (en) 2013-11-11 2016-12-22 Ecolab Usa Inc. Multiuse, enzymatic detergent and methods of stabilizing a use solution
JP2016538412A (ja) 2013-11-11 2016-12-08 エコラボ ユーエスエー インコーポレイティド 強化されたスケール制御及び汚れ分散性を有する高アルカリ性物品洗浄洗剤
WO2015197106A1 (en) * 2014-06-24 2015-12-30 Electrolux Appliances Aktiebolag Method for operating a laundry washing appliance and laundry washing appliance implementing the same
CA3060312C (en) 2017-04-27 2022-07-12 Ecolab Usa Inc. Solid controlled release carbonate detergent compositions
JP7091454B2 (ja) 2017-11-14 2022-06-27 エコラボ ユーエスエー インコーポレイティド 固形制御放出苛性洗剤組成物
US11518961B2 (en) 2019-09-27 2022-12-06 Ecolab Usa Inc. Concentrated 2 in 1 dishmachine detergent and rinse aid

Family Cites Families (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3490467A (en) * 1966-07-11 1970-01-20 Intercontinental Chem Corp Method of monitoring and maintaining concentration of depletable work solutions
US3319637A (en) * 1966-07-11 1967-05-16 Intercontinental Chem Corp Means for monitoring and maintaining concentration of depletable work solutions
DE1285087B (de) * 1967-11-13 1968-12-12 Miele & Cie Maschinenfabrik Verfahren zum Reinigen von mit staerkehaltigen Speisen verschmutztem Geschirr in Geschirrspuelmaschinen
DE1728093A1 (de) * 1968-08-24 1972-03-09 Kronwitter Geb Staiber Lieselo Verfahren zur Reinigung von Geschirr in Haushalts-Geschirrspuelmaschinen sowie Mittel zur Durchfuehrung des Verfahrens
DE2038103A1 (de) * 1970-07-31 1972-02-10 Henkel & Cie Gmbh Waessrige Reinigungsmittelkonzentrate mit einem Gehalt an stabilisierten Enzymen
DE2062465B2 (de) * 1970-12-18 1976-11-25 Henkel & Cie GmbH, 4000 Düsseldorf Geschirrspuelmittel
BE792851A (fr) * 1971-12-17 1973-06-15 Henkel & Cie Gmbh Agents de lavage, de rincage et de nettoyage
US3896827A (en) * 1973-08-31 1975-07-29 Norman R Robinson Dish machine monitoring of time, temperature, alkalinity, and pressure parameters
DE2727463A1 (de) * 1976-06-24 1978-01-05 Procter & Gamble Reinigungsmittel, das insbesondere zur verwendung in geschirrspuelmaschinen geeignet ist
US4243543A (en) * 1979-05-11 1981-01-06 Economics Laboratory, Inc. Stabilized liquid enzyme-containing detergent compositions
DE3428834A1 (de) * 1984-08-04 1986-02-13 Henkel KGaA, 4000 Düsseldorf Geschirreinigungsmittel
GB8619045D0 (en) * 1986-08-05 1986-09-17 Ici Plc Dishwashing compositions
US4810414A (en) * 1986-08-29 1989-03-07 Novo Industri A/S Enzymatic detergent additive
IT1201783B (it) * 1986-11-27 1989-02-02 Zanussi Elettrodomestici Gruppo di pompaggio in particolare per macchine lavastoviglie
GB8629538D0 (en) 1986-12-10 1987-01-21 Unilever Plc Enzymatic dishwashing & rinsing composition
GB8813687D0 (en) * 1988-06-09 1988-07-13 Unilever Plc Enzymatic dishwashing & rinsing composition
GB8813688D0 (en) * 1988-06-09 1988-07-13 Unilever Plc Enzymatic dishwashing composition
US5030377A (en) * 1988-11-11 1991-07-09 Kao Corporation Detergent compositions containing starch debranching enzymes
DE3920728C2 (de) * 1989-06-24 1993-11-04 Henkel Kgaa Verfahren zum betrieb einer geschirrspuelmaschine und vorrichtung zum durchfuehren des verfahrens
JP2936340B2 (ja) * 1990-06-08 1999-08-23 大塚薬品工業株式会社 酵素水溶液の安定化
US5308530A (en) * 1990-11-21 1994-05-03 Lever Brothers Company, Division Of Conopco, Inc. Detergent compositions containing polycarboxylates and calcium-sensitive enzymes
US5399284A (en) * 1991-04-03 1995-03-21 Chemische Fabrik Dr. Weigert (Gmbh & Co.) Process for removing starch-containing contamination from dishes and surfactant concentrates suitable for this process
DE4112075A1 (de) * 1991-04-12 1992-10-15 Henkel Kgaa Verfahren zur herstellung stabiler, bifunktioneller, phospat- und metasilikatfreier niederalkalischer reinigungsmitteltabletten fuer das maschinelle geschirrspuelen
AU655274B2 (en) * 1991-05-31 1994-12-15 Colgate-Palmolive Company, The Nonaqueous liquid, phosphate-free, improved automatic dishwashing composition containing enzymes
US5173207A (en) * 1991-05-31 1992-12-22 Colgate-Palmolive Company Powered automatic dishwashing composition containing enzymes
US5527484A (en) * 1991-05-31 1996-06-18 Colgate-Palmolive Co. Phosphate containing powdered automatic dishwashing composition with enzymes
US5474699A (en) * 1991-05-31 1995-12-12 Colgate-Palmolive Co. Phosphate containing powered automatic dishwashing composition with enzymes
CA2133446A1 (en) * 1992-04-13 1993-10-28 Janet L. Marshall Thixotropic liquid automatic dishwashing composition with enzyme
DE4229650C1 (de) * 1992-09-04 1994-01-05 Henkel Kgaa Verfahren zur Herstellung von Reinigungstabletten

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ES2105725T3 (es) 1997-10-16
ATE155987T1 (de) 1997-08-15
EP0700265B1 (de) 1997-07-30
TR28788A (tr) 1997-03-25
FI955612A0 (fi) 1995-11-22
NO954592L (no) 1995-11-14
WO1994027488A1 (de) 1994-12-08
NO954592D0 (no) 1995-11-14
US6718991B1 (en) 2004-04-13
JPH08510397A (ja) 1996-11-05
GR3024425T3 (en) 1997-11-28
EP0700265A1 (de) 1996-03-13
FI955612A (fi) 1995-11-22
CA2163757C (en) 2004-09-07
FI105071B (fi) 2000-06-15
DK0700265T3 (da) 1998-03-16
JP3342702B2 (ja) 2002-11-11
CA2163757A1 (en) 1994-12-08
NO311123B1 (no) 2001-10-15

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