JP2017144240A - Cleaning apparatus and cleaning method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a cleaning method which cleans items in the form of potter, cutlery, or laundry to the extent possible.SOLUTION: The cleaning method comprises: in a first step, cleaning items to be cleaned for a first cleaning period of time in a first cleaning chamber 13; in a second step, dispensing a marking agent to the items to be cleaned from a nozzle device 27; in a third step, detecting the marking agent by means of a radiation source 31 and a camera 32 to determine which of the items to be cleaned still have contaminants to be removed; in a fourth step, further cleaning the items still having the contaminants to be removed for a second cleaning period of time, such that cleaning is efficiently performed with the consumption of water and energy kept at a low level and the best cleaning results are obtained.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a cleaning method for cleaning articles in the form of pottery, cutlery or laundry, and a cleaning device for carrying out the cleaning method, in particular a dishwasher Or it relates to a washing machine.

  In the washing method in the dishwasher and the washing machine, first, it is required that the article to be washed is washed in the largest possible range. The above-mentioned article is in any case used for food consumption, i.e. in contact with food, or worn on the skin. Thus, in each case, increased demands can be applied here.

  Secondly, especially in the case of dishwashers and washing machines, there is an increasing demand for minimizing or keeping water and energy consumption low. It is difficult to combine these clearly contradictory aspects together in the best possible way.

  The present invention is a cleaning method as described at the beginning and a cleaning apparatus as described at the beginning for carrying out the cleaning method, whereby the problems of the prior art cleaning methods and cleaning devices are solved. Based on the objective of realizing what can be done, in particular, it can be implemented as efficiently as possible and with the best possible results so that the article to be cleaned is as clean as possible.

  The object is achieved by a cleaning method having the features of claim 1 and a cleaning apparatus having the features of claim 18. Advantageous and preferred improvements of the invention are specified in the further claims and will be described in more detail below. Here, some of the features are described only for the cleaning method or only for the cleaning device. However, it is contemplated that the features can be independently applied independently to both the cleaning method and the cleaning apparatus. The terminology of the claims is hereby incorporated by reference into the content of this specification.

  It is prescribed that the cleaning method is carried out in at least one first cleaning chamber or cleaning area, and that the cleaning device has only at least one first cleaning chamber, under certain conditions said single cleaning chamber. The Articles are cleaned in the cleaning chamber. In the first step, the article is cleaned for a first cleaning time. The first cleaning time can usually be numerically determined such that a significant percentage of the articles based on experience values, for example at least 50% to 80%, are properly cleaned or cleaned. The first cleaning time is relatively short or predictable relative to all of the items to be cleaned, but at the same time long enough that a significant proportion of the items are already properly cleaned. It is advantageous to be numerically determined to be.

  In a second step for checking the degree of cleanliness (cleanliness), a marking agent is added or dispensed on the article to be cleaned. For this purpose, a dispensing device for the marking agent can be provided in the cleaning device or in the first cleaning chamber. The marking agent can be in powder or liquid form and it is expected that the liquid marking agent can be easily dispensed. The marking agent can also be contained in a laundry or food detergent and can have a coating that dissolves in water after a certain time, particularly preferably after a time approximately corresponding to the first washing time. Marking agents are designed to stick to contaminants on the article or to make the contaminants optically detectable, for example.

  In the third step, the marking agent is identified by the detection device of the cleaning device. It is therefore possible to determine which of the articles to be cleaned are already properly cleaned and which of the articles to be cleaned still have contaminants that must be removed. The detection device is advantageously optically operated using light of a specific wavelength under certain conditions, for example with a UV light source in the form of a UV LED, which illuminates the marking agent Can do. Therefore, it is possible to visualize and identify the remaining contaminants.

  In the fourth step, the articles still having contaminants to be removed are then further or re-cleaned with a further second cleaning time.

  Thus, according to the present invention, after a certain time, an inspection or check is performed as to which of the articles to be cleaned are already properly cleaned. Thus, it is no longer necessary that all of the items to be cleaned be further or again cleaned, which reduces spending as expected. Further or re-cleaning must be performed only on items that require it. By means of the marking agent and preferably a detection device that operates automatically, the articles that are still to be cleaned can be identified. Here, a further second washing time, a further washing step can be carried out only on the articles still having the contaminants to be removed. Already clean articles that can be identified by marking agents and detection devices can be excluded from the further cleaning step. It can therefore be carried out with less expenditure for further cleaning steps and thus for all cleaning steps.

  Marking agents suitable for the present invention advantageously have two properties. First, they must adhere to contaminants. Second, they must be able to be identified by the detection device. To achieve these two properties, one component is provided for attachment to the desired contaminant, one component is provided for identification by the detection device, and the two components are used as marking agents. Advantageously, they are combined or synthesized together. As an ingredient for attachment, it is advantageous to provide an enzyme that adheres well to the contaminants (especially organic contaminants) themselves. For example, the company AMODIA Bioservice GmbH in Brunswick sells corresponding drugs for attaching to bacteria or fungi. In particular, it is envisaged that pollutants always have bacteria and / or fungi at least in organic pollutants such as certain food residues. These are particularly easy to detect. In addition, there are enzymes that can attach directly to contaminants.

  Corresponding chemicals from the pharmaceutical field can be used as marking agents as components for identification by the detection device. Such chemicals are described in the document “Photon upconversion nanomaterials”, by Fan Zhang, Springer 2015, ISBN: 978-3-662-45596-8. A list of fluorescent detergents can be found in ASTM Data Series DS 53A. A specific example is the optical brightener TINOPAL from the company BASF in Ludwigshafen. This glows blue under UV excitation and is easily distinguishable. Corresponding marking agents with quantum properties are sold by the company CAN GmbH in Hamburg.

  In a first alternative of the invention, at least some of the articles are moved for further cleaning steps or for a second cleaning time. Here, they can preferably be spatially separated from other articles, particularly preferably removed from the first cleaning chamber or the cleaning area, before the start of a further cleaning step. For this purpose, movement means of the type such as robot arms or rails, belts, gripping means, etc. are provided.

  Clean articles or articles that do not need to be further cleaned can then be removed from the first cleaning chamber. Articles that are still contaminated (ie must be cleaned once more) remain in the first cleaning chamber for further cleaning steps. It is stated that the further washing step is basically carried out in the same way as the first washing step. Here, parameters such as temperature and / or duration may be similar to those in the first washing step. Alternatively, the parameters can be varied so that an additional washing step is stronger (ie either at a higher temperature and / or longer duration) than the first washing step.

  The washing process can be a washing process for an item of laundry as an article, and for this purpose a washing machine is used as the washing device described above. The washing machine has only a single washing room or washing area, in particular the first washing room mentioned above, under certain conditions. Then, after the first washing step, a clean laundry item or a laundry item that does not need to be further washed is removed from the washing machine and the laundry item is identified by the marking agent and the detection device. Is possible. Advantageously, this is done automatically. Alternatively, the cleaning process can be used for pottery or cutlery, and a dishwasher can be provided as a cleaning device. In this case as well, only a single washing room can be provided, as is known for dishwashers, one, two or three baskets or conventional supports. Can be provided in the single cleaning chamber. The different baskets can then form different cleaning areas in each case in the dishwasher. This is because, in the case of a dishwasher, such different areas can be processed separately in a single washing room. Further cleaning can be performed in one cleaning region, and further cleaning is not performed or is performed in another cleaning region, either secondarily or accidentally.

  Articles that are still to be cleaned remain in each case in the first cleaning chamber and undergo a second cleaning step. Then, on the other hand, the cleaning process can be terminated after a predefined second cleaning time without checking whether contaminants are still present. Alternatively, it is then possible to apply another step of applying a marking agent, using a detection device and checking whether the cleaning is indeed appropriate.

  In this process, under certain conditions, the marking agent can occur on an article that is properly clean itself, which is obviously undesirable. At that time, after completion of the main cleaning step itself, towards the end of the second cleaning time, the article is washed once again for the marking agent to be removed in a subsequent rinsing step. Furthermore, in practice, pottery and cutlery may have to be finally dried, particularly in the dishwashing process in a dishwasher. This has not yet been done at the end of the first cleaning time. This is because the drying process has to be carried out once again on articles that have to be washed again. Furthermore, in addition to increased energy consumption, soils already dissolved as a result of the treatment with water may adhere strongly again as a result of drying. Obviously it is obviously undesirable. Accordingly, the dried pottery and cutlery can then be removed from the dishwasher as a whole at the end of the cleaning process.

  A similar situation can be applied for centrifugal spinning for washing processes with a washing machine, and laundry items are probably only lightly centrifugally dehydrated prior to the application of the marking agent. It is possible to remove a major part (advantageously more than 50%) of the absorbed water. Here, items of laundry that are already clean and still very wet can be removed until a second washing step is carried out. Thereafter, the previously removed laundry item can be reintroduced, and the marking agent is then removed in a subsequent rinsing step so that the laundry item becomes normal for initial drying. The method can be centrifugally dehydrated.

  In a second basic alternative of the improvement of the invention, for a second or further cleaning step, articles that are still to be cleaned and articles that do not need to be further cleaned may remain in the same cleaning chamber. Stated. The further cleaning step is then carried out only on one region or only on one region or one cleaning region of the first cleaning chamber. This is obviously clearly taken into account, especially for dishwashers, in which a cleaning step is possible which is carried out only partially in the cleaning room, in particular only for one cleaning area. Thus, cleaning can be carried out, for example, in the front region or the rear region of the cleaning chamber, particularly advantageously clearly in the upper region or the lower region, or in the upper or lower basket. Usually, a dedicated spray arm or dedicated water distribution means is provided for each basket, and further limited cleaning here is easily possible here.

  If the washing process is a washing process using a washing machine as a washing device, the washing machine can also have a first washing room and a second washing room, or two drums. Such a washing machine is sold, for example, by the company LG Electronics under the name Twin Wash. At that time, items of clean laundry or items of laundry that do not need to be further washed can be moved from the first wash room into the second wash room, where they are Can be left until removed by the operator. Here, the items of laundry can, on the one hand, be left in the second washing room without any treatment. Alternatively, at least the basic function of the washing process (for example rinsing for removal of marking agents still present and / or centrifugal dehydration or removal of absorbed moisture) can be carried out therein. The further cleaning steps described above are then performed in the first cleaning chamber.

  In improvements other than those described above, it is possible for the washing machine to have two washing rooms in turn for the washing process using the washing machine. However, it is then possible to remove the item of laundry to be cleaned, identified by the use of the marking agent and detection device described above, from the first cleaning chamber and move it into the second cleaning chamber. . Again, they remain until they are removed, where further or second washing steps are then carried out in the second washing chamber. Therefore, in contrast to the improvements described above, this is where the location where the further or second washing step is performed is changed.

  For the dishwasher, in the case of the basic second alternative of the invention described here, the dishwasher has only a single washing room. Pottery or cutlery that is considered clean because it has already been cleaned after the first cleaning step and therefore has no or little marking agent is then removed from the dishwasher be able to. The pottery or cutlery may be left in a dedicated holding container until the pottery or cutlery that must still be cleaned is properly cleaned (it can in turn be checked by the marking agent and the detection device). it can. The pottery and cutlery can then be reintroduced until the cleaning process is complete with drying.

  Furthermore, the dishwasher can be configured to have two separate cleaning chambers as well as a plurality of separate baskets or supports. Here, as in the situation described above for the washing machine, it is also possible to divide the pottery and cutlery into what has already been cleaned and what still has to be cleaned. One of the two groups can then be moved from one wash room into the other wash room, while still soiled ceramics and cutlery are then in the corresponding wash room. It is washed once again in a further second washing step.

  In a basic improvement of the invention, it is stated that the movement or removal or reclassification of the article is performed by hand. Here, the marking agent can already be seen with the naked eye or the marking agent can be visualized using special light so that it can be seen with the naked eye, as mentioned at the outset. Such manual movement of an article is clearly the simplest option for configuration, but requires the intervention of a manipulator at a particular point in time, which constitutes a certain amount of expense. Alternatively, automatic identification of an article or marking agent that is still to be cleaned can be performed by a detection device, which then advantageously has an optical sensor and / or camera. In particular, if the marking is carried out with a fluorescent marking agent or a UV excitation marking agent, for example with a material having quantum properties or quantum dots, such a camera or optical sensor can be used advantageously as a detection device.

  A simple improvement of the detection device described above can simply identify or locate the color generated or emitted in the first cleaning chamber, for example when the marking agent is illuminated with light of a particular wavelength. It is an optical color sensor. Alternatively, a simple form of video camera with corresponding resolution and color sensitivity can be used, as well as a simple CCD chip or CMOS chip can be used.

  For automated movement of the article, a movement means may be provided which may be for example a gripping means or a robot arm. Such a robot arm is basically known (eg DE 197 44 488 A1). They can have two to four joints, they can grip any article safely and reliably in the washing room, and respond to the article in a manner that is friendly to the article. Can move. Said movement may be either out of the washing room and / or into the second washing room, or between different supports or baskets of a dishwasher as a washing device. For gripping and moving the article, the moving means, in particular the aforementioned robot arm, can have at least two gripping fingers.

  The moving means can move the articles only in the cleaning chamber (ie, the first cleaning chamber) or in two cleaning spaces (from the first cleaning chamber to or from the second cleaning chamber). Can be designed to. Alternatively, the moving means can also be operated by a person operating so that it moves an article, in particular an article that has already been properly cleaned, and so moved out of the cleaning device or out of the first cleaning chamber. It can be designed so that it can be easily received and cleared or further moved.

  Apart from the possibility of designing the moving means as a robot arm consisting of a plurality of elements and a plurality of joints which can move substantially freely, it can be moved on a rail or the like in the cleaning device or in the first cleaning chamber. It is also possible to provide possible moving means. Thus, under certain conditions, it is possible to make the moving means of a simple design and at the same time operate in a reasonably effective manner under normal and very limited space conditions in a dishwasher or washing machine.

  It is advantageous for the marking agent to be further removed, washed away or rinsed off at the end of the washing process or before the fully washed article can be removed. This is particularly meaningful when used in a dishwasher.

  Advantageously, the marking agent can be removed from or filtered from the rinse water or wash water before it is run into the waste water. It is thus possible to retain the above-mentioned materials with harmful marking agents or marking agents that are evaluated as dangerous, in particular with quantum properties or quantum dots. For this purpose, a specific filter can be used, which is preferably installed directly in the cleaning device.

  These and further features appear not only from the claims but also from the description and the drawings, with individual features being individually or some of the subcombinations in each case in the embodiments of the invention and in other fields. It is possible to implement an advantageous and independently protectable embodiment in which protection can be realized here and where protection is claimed here. The subheadings and divisions into individual sections of this application do not limit the text produced under these with respect to their general applicability.

  Exemplary embodiments of the invention are schematically illustrated in the drawings and will be described in more detail below.

FIG. 1 is a schematic view of a dishwasher according to the invention having two baskets, a nozzle for a marking agent according to the invention, and a detection device.

FIG. 2 is a schematic diagram of the two-step process of applying marking agent to a dish, subsequent identification of contaminants, and dish separation.

3 is a modified view of the dishwasher from FIG. 1 having a robot arm in the wash chamber.

FIG. 4 is a schematic view of a washing machine according to the invention having two cleaning chambers and nozzles for marking agents and a detection device in the first cleaning chamber.

  FIG. 1 shows the dishwasher of the present invention as a cleaning device with functional internal fixtures. The dishwasher 11 has a housing 12, and the housing 12 has a first washing chamber 13. In the cleaning chamber 13, a substantially normal lower basket 16 is disposed, and an upper basket 17 is disposed thereon. Here, a plurality of dishes 19 are shown in a side view in the lower basket 16 and these dishes have contaminants and must be cleaned. The two baskets 16 and 17 form two different cleaning areas as described above.

  A lower spray arm 21 is arranged below the lower basket 16 in the first washing chamber 13 as is usual in a dishwasher. The upper spray arm 22 is disposed on the upper basket 17. On the upper side, a first nozzle 25 and a second nozzle 26 are provided, both of which belong to the present invention, and the above-mentioned marking agent is cleaned by the nozzle device 27 in the first cleaning chamber 13, or pottery or cutlery Helps to distribute over the kind. The first nozzle 25 is intended to supply or inject marking agent onto the article in the lower basket 16, as indicated by its length. The second nozzle 26 is intended to do this for the article in the upper basket 17. These nozzles 25 and 26 can also be provided in large numbers or as a single nozzle only. Furthermore, the nozzle need not be provided on the upper side of the cleaning chamber 13. They may also be on the side walls or at the bottom. Alternatively, the marking agent can be mixed in the water that is jetted.

  A radiation source 31 in the form of a light emitting diode or a light emitting diode device is arranged on the rear wall of the cleaning chamber 13, for example. The radiation source 31 can emit light in the visible range or invisible or only partially visible. It is advantageous to provide a UV illumination device with UV LEDs having a wavelength in the range of 250 nm to 400 nm. This will be described in more detail below.

  Adjacent to the radiation source 31, a camera 32 is arranged as a further part of the detection device. The camera 32 can be designed as described above, for example, as a relatively simple CCD or CMOS camera. It need not have a particularly high resolution. In particular, however, it should be designed to detect light in the wavelength range of the radiation source 31 or wavelength light emitted by the marking agent adhering to the contaminant when illuminated by the radiation source 31. . This was mentioned above. The radiation source 31 and the camera 32 are connected to the controller 29. This may be a central controller for the dishwasher 11 or an additional controller. The controller is also connected to the nozzle device 27.

  Based on FIGS. 1 and 2, it is attempted to outline the sequence of the cleaning method according to the invention. First, the contaminated dish 19 is placed in the lower basket 16. The article to be cleaned can be present in the upper basket 17, but this need not be the case. The spray arms 21 and 22 then carry out the usual washing process as usual for the dishwasher 11. Here, as mentioned above, in the context of the present invention, the washing step can be carried out over a shorter period of time than usual, for example 20% to 50% shorter than usual. . At the end of the cleaning process, when it is assumed in principle that a certain proportion (preferably at least half) of the introduced dishes 19 or other articles are clean or cleaned, the process is interrupted, to the extent that The However, the pottery or dish 19 is advantageously not yet dried. This is because, as mentioned above, this makes the further cleaning step more difficult and involves a particularly high energy consumption.

  Subsequently, as shown on the left side of FIG. 2, the marking agent 36 is dispensed from the first nozzle 25. The marking agents can be distributed in powder form or in the form of a sprayed liquid so that they have a good distribution. Alternatively, the marking agent 36 can also be applied mixed in a conventional source for the spray arms 21 and 22 and then diluted with normal water.

  In the very schematic FIG. 2, the left dish 19 a is clean and has no contaminants, while the right dish 19 b has the contaminants indicated by points 34. The marking agents 36 are specifically designed with respect to their particle size and their chemical properties to adhere to the contaminant 34. These examples are nanomaterials and also have fluorescent properties. They may also be fluorescent proteins. The marking agent 36 can have quantum properties in this case, in particular for carrying out the light emission after being irradiated by the radiation source 31. The marking agent is advantageously designed by adhering to the contaminants and visualizing them, preferably synthesized together. Refer to the above sentence in this regard.

  FIG. 2 shows a further step of irradiating the dishes 19a and 19b with radiation corresponding to the radiation source 31, for example with UV light as described above. Since the dish 19a no longer has any contaminants, nothing can be identified here by the camera 32, or only very few traces can be identified where a properly cleaned condition can be inferred. Can do. In the case of a contaminated dish 19b, there is a visible contaminant 35, which can be made very clearly visible by the marking agent. By this method, this is more effective than visualizing the normal contaminant itself. These are very important properties of the marking agent 36. The camera 32 can clearly identify the visible contaminants 35, which does not strictly mean that they are also visible to the human eye.

  Thus, the camera 32, along with the controller 29, can help determine if the dish has already been properly cleaned. The clean dish 19a can then be moved in one direction. It does not need to be further cleaned. The dishes 19b that are still contaminated must be moved in another direction and cleaned again.

  For further cleaning, FIG. 3 shows how the robot arm 39 is fed to the dishwasher 11 with the free end gripping means 40. The robot arm 39 is not shown in FIG. 1 for simplicity, and the nozzles 25 and 26, the radiation source 31 and the camera 32 are not shown in FIG. 3 for clarity. The robot arm 39 can grip the individual dishes 19 by the gripping means 40 and move them in such a way as to depend on the further process and its contamination level. For example, it is stated that the clean dish 19a is moved from the lower basket 16 into the upper basket 17, where it is not further rinsed, or the upper spray arm 22 with a role for the upper basket is no longer used.

  Furthermore, the robot arm 39 takes each dish 19 using the gripping means 40 and holds it in front of the combination of the radiation source 31 and camera 32 to identify the contaminants 35 made visible by the marking agent 36. It is stated that This then determines where the dish is moved by the robot arm 39.

  Thus, on the one hand, the radiation source 31 and the camera 32, by virtue of their mounting and design, can inspect all of the article or pan 19 for contamination at the location of the article. Alternatively, the article is moved in front of the camera 32 by a robotic arm or other similar device and moved forward in response to inspection.

  For marking contaminants, it is also conceivable to add a marking agent to the water, for example in the dishwasher 11 towards the end of the washing process as a washing process. This can then be a relatively short dishwashing process, for example a time of 20-30 minutes, in which case it can be particularly envisaged that a small proportion of pottery or cutlery has not yet been washed. .

  In the example described here, if a dish 19a that has already been properly cleaned is placed in the upper basket 17 without contaminants and the remaining dish 19b is in the lower basket 16, a further dishwashing step is carried out. . This can in principle be carried out in the same way as in the first, i.e. at a similar temperature and in a similar time. It may alternatively last for a shorter or longer time, and it can even be made dependent on the number of contaminants the camera 32 identifies and objective stubbornness.

  Once the second dishwashing process is over, on the one hand, it can be assumed that all dishes 19 are clean. Alternatively, it is possible once again to apply the marking agent to the dish and to inspect again for contaminants, as if following the first washing step.

  In the case of the dishwashing process described here for pottery, normal drying of pottery and / or cutlery in the dishwasher 11 can then be carried out. Therefore, the energy intensive time consuming process is performed only once.

  FIG. 4 schematically shows a washing machine 111 as an alternative for the cleaning device according to the invention. Within the housing 112, the washing machine has a first washing chamber 113 and an additional second washing chamber 114 as an alternative to the two baskets of the dishwasher 11. The washing chamber does not have to be a rotating drum as is known from conventional washing machines, but this is also not excluded as is obvious.

  Items of the laundry 120 that must be washed are located in the first washing chamber 113. Shown above the first cleaning chamber 113 is the first nozzle 125 of the nozzle device 127, which can dispense the marking agent described above onto the item of laundry 120 or into its cleaning water. it can. Similarly, disposed above the first cleaning chamber are a radiation source 131 and a camera 132, which are connected to a controller 129. A robot arm 139 having a plurality of joints is arranged adjacent to it or between the first cleaning chamber 113 and the second cleaning chamber 114, and has a gripping means 140 at the free end. The robot arm 139 can move the item of the laundry 120 from the first cleaning chamber 113 into the second cleaning chamber 114 by the gripping means 140.

  In the case of a washing process as a washing process according to the invention, it is stated that a relatively short washing process is carried out, in which case, as in the situation above for the dishwasher, 80 items of the laundry 120 % Are properly cleaned, but some may not have been cleaned properly. The marking agent can then be added directly onto the item of laundry 120 or into the wash water by the first nozzle 125. Alternatively, the marking agent can also be simply administered in the wash water.

  Particularly in the case of the washing machine according to the invention, the robot arm 139 uses the gripping means 140 to pick up individual items of the laundry 120 to which the marking agent has been applied and to pick up the items of laundry of the camera 132. It may be advantageous to hold in front and the item of laundry is irradiated by a radiation source 131. It can then check whether contaminants are still present on each item of laundry. The contaminant is visualized by a special marking agent by fluorescence or quantum properties. The washing machine or its controller 129 can then determine whether the item of laundry has to be washed once again, or whether it has already been properly washed. Here, as a whole, the item of laundry can be divided between the two washing chambers 113 and 114.

  Laundry items in which visible contaminants can still be seen are advantageously placed in the second washroom 114. There is no need for further washing. Here, for example, the item of the laundry may be simply left with a drop.

  Special marking agents are the most effective and possible ways to adhere to special or common average contaminants in the most effective and possible way and / or for automated identification, especially In order to visualize these with radiation sources and cameras, they should be used according to their suitability. In particular, the properties relating to adhesion to pollutants are very important.

Claims (22)

For example, a method for cleaning articles in the form of pottery, cutlery or laundry, wherein the method is carried out in at least one first cleaning chamber and further comprises the following:
-In the first step, the article is washed for a first washing time;
-In the second step, the marking agent is added or dispensed on the article to be cleaned, provided that the marking agent is designed to stick to or detect the contaminant. The
-In the third step, to determine by the detection device which of the articles to be cleaned has already been properly cleaned and which of the articles to be cleaned still have contaminants to be removed. Identifying marking agents,
-In the fourth step, the articles still having the contaminants to be removed are washed further or again for a further second washing time.   Method according to claim 1, wherein a further washing step of a further second washing time is carried out only on articles still having the contaminants to be removed and articles already cleaned are excluded therefrom. .   The method of claim 1, wherein at least some of the articles are moved and spatially separated from other articles for an additional cleaning step of an additional second cleaning time.   4. The method of claim 3, wherein at least some of the articles are removed from the first cleaning chamber prior to the start of a further cleaning step for a further cleaning step of a further second cleaning time.   Articles that have been cleaned or that should not be further cleaned are removed from the first cleaning chamber, but articles that still have contaminants remain in the first cleaning chamber for further cleaning steps, The method of claim 3.   6. The method according to claim 5, wherein the further washing step is basically carried out in the same manner as the first washing step or with the same parameters with respect to temperature and time.   The washing process is a washing process for items of laundry as articles, and for this purpose, as a washing device, a washing machine is used only in a single washing room and is cleaned after the first washing process. The method of claim 1, wherein laundry items that are present or that do not need to be further washed are removed from the washing machine.   For further cleaning steps, items that are still to be cleaned and items that do not need to be cleaned remain in the same cleaning chamber as for the first cleaning step, and further cleaning steps are performed in one of the first cleaning chambers. The method according to claim 1, wherein the method is performed only for a region or only in one region and thus only for an article placed in the region.   The washing process is a washing process for items of laundry as articles, and for this purpose a washing machine is used as a washing device, the washing machine has a first washing room and a second washing room and is clean The method of claim 1, wherein laundry items that are made and items that do not need to be further washed are moved from the first wash chamber to the second wash chamber.   10. The method of claim 9, wherein items of laundry that are cleaned and items of laundry that do not need to be further washed remain in the second washroom until they are removed.   The washing process is a washing process for items of laundry as articles, and for this purpose a washing machine is used as a washing device, the washing machine having a first washing room and a second washing room The method of claim 1, wherein items of laundry that are still to be cleaned are moved from the first cleaning chamber to the second cleaning chamber.   12. A method according to claim 11, wherein items of laundry that are still to be washed remain in the second washing chamber until they are removed after the second washing step in the second washing chamber.   The washing process is a dishwashing process for earthenware or cutlery as articles, and for this purpose, a dishwasher is used as a washing device, and after the first washing process, The method of claim 1, wherein the cutlery or earthenware or cutlery that does not need to be further cleaned is removed from the dishwasher.   The washing process is a dishwashing process for ceramics or cutlery as articles, and for this purpose, a dishwasher is used as a washing device, and the dishwasher is used for the first washing chamber and the second washing. The earthenware or cutlery having a chamber and being cleaned, or the earthenware or cutlery that does not need to be further cleaned is moved from the first washing chamber to the second washing chamber. Method.   15. A method according to claim 14, wherein the cleaned pottery or cutlery, or pottery or cutlery that does not need to be further cleaned, remains in the second cleaning chamber until it is removed.   The washing process is a dishwashing process for ceramics or cutlery as articles, and for this purpose, a dishwasher is used as a washing device, and the dishwasher is used for the first washing chamber and the second washing. 2. The method according to claim 1, wherein pottery or cutlery having a chamber and still to be cleaned is moved from the first cleaning chamber to the second cleaning chamber.   17. A method according to claim 16, wherein the pottery or cutlery still to be cleaned remains in the second cleaning chamber until it is removed after the second cleaning step in the second cleaning chamber. A cleaning device for carrying out the method according to claim 1, wherein the cleaning device has a first cleaning chamber, in which the cleaning is performed in the form of, for example, pottery, cutlery or laundry. A cleaning device in which an article to be placed can be placed and is further characterized by:
-The cleaning device has a second cleaning chamber separated from the first cleaning chamber, and / or-the first cleaning chamber is divided into a first region and a second region, and / or-in the cleaning device A moving means is provided on or in the cleaning device for moving articles in or in the first cleaning chamber or from the first cleaning chamber to the second cleaning chamber.   The cleaning device according to claim 18, wherein cleaning means such as a spray arm and water supply means are disposed only in the first region.   The cleaning device according to claim 18, wherein the moving means is provided to the first cleaning chamber.   The cleaning device according to claim 18, wherein the cleaning device has only a single cleaning chamber.   The cleaning device according to claim 18, wherein the cleaning device has two cleaning chambers.

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