EP3848440A1 - Cleaning combination in block form with at least one cleaning component - Google Patents

Abstract

The invention relates to a cleaning combination (10) in block form (12) with at least one cleaning component (17) in the form of a decalcifying or cleaning block (18) to be received in a receiving device (32). This is arranged in the interior (14) of a cooking appliance or oven (16). In addition to the decalcifying or cleaning block (18), the cleaning combination (10) contains further cleaning components (17) which, via connecting and separating layers (24, 26, 40), cause a cleaning component (17) to be detached due to gravity and / or with a dissolvable sheath (28, 38) are provided.

Description

Technical area

The invention relates to a cleaning combination in block form with at least one cleaning component in the form of a decalcifying or cleaning block for receiving in a receiving device in an interior of a cooking appliance or an oven. In addition, the invention relates to a method for the selective gravity-controlled release of detergent components of a detergent combination in block form.

State of the art

DE 100 60 204 B4 relates to a cleaning system for an oven and a method for cleaning an oven. The cleaning system for an oven for the heat treatment of food comprises an interior space which can be closed by means of a door, furthermore a heating device for heating the interior space. Furthermore, a circulation device is provided for circulating fluid within the interior space, a floor drain and a floor valve and supply means for supplying liquid into the interior space. The cleaning system further comprises a control device which is coupled to the bottom valve of the circulating device and the supply means to ensure an automatic cleaning cycle with at least one cleaning step and a subsequent rinsing step with water. A container for receiving cleaning agent is connected to the interior space and has at least one outlet opening for the cleaning agent. There is also a cleaning agent insert is provided in the Container can be used and can be dissolved by supplying water, the type, amount and solubility of the detergent use, the shape and size of the outlet opening, the location of the attachment of the container, the supply means for supplying liquid and the control device are coordinated in such a way that the The use of detergent during a cleaning cycle can be dissolved largely without leaving any residue by supplying water into the interior of the furnace.

EP 1 478 886 B2 relates to a method for cleaning a cooking appliance with a cleaning agent in tab form. According to the method, an interior of a cooking appliance is cleaned in which the interior is cleaned with a cleaning liquid during at least one cleaning cycle and is rinsed with a liquid at the end of the cleaning cycle. At least one cleaning stick and / or rinse aid tab and / or descaler and / or at least one phase component of a multi-phase tab is used, containing a component selected from the group consisting of PVA, PVAL, glycerine, alkylene glycol (E) as an additive to adjust the dissolving behavior and their polymers and / or non-ionic surfactants, polyalkylene glycols, waxes, long-chain fatty derivatives, polyacrylates, polyacrylate copolymers, PVP, polyvinyl acetate, fatty acids, alcohols, diols, esters, ethers and paraffins. The cleaning, rinse aid and / or descaling tab and / or at least one phase component of a multi-phase tab is / are placed in the cooking space, in the extinguishing box, in the technical room, in the ventilation pipe or in the ventilation pipe, whereby the degree of dissolution or the dissolution rate of the cleaning and final rinse - and / or descaling tab or the multi-phase tab is controlled via the speed of a fan wheel in the cooking space.

Detergent components that are used to clean cooking appliances and ovens are mostly single-phase or multi-phase tabs with a plastic coating. This poses a problem since the packaging or sheathing is plastic waste. The problem outlined therefore also relates to cleaning cartridges or tabs that are packaged in a plastic film.

Presentation of the invention

The present invention is based on the object of achieving a significant reduction in plastic waste in relation to cleaning agents or cleaning systems by means of packaging designed to be dissolvable. Furthermore, the present invention is based on the object of achieving a lower use of products and, associated therewith, of minimizing as much as possible the pollution of the environment by residues that occur.

According to the invention, a cleaning combination in block form is proposed with at least one cleaning component in the form of a decalcifying or cleaning block for receiving in a receiving device in an interior of a cooking appliance or an oven. In addition to the decalcifying or cleaning block, the cleaning combination contains other cleaning components that are connected to one another via at least one connecting and separating layer, which causes a cleaning component to be detached due to gravity and / or which is provided with a dissolvable coating.

In an advantageous manner, the solution proposed according to the invention can achieve application-specific dissolution or melting of cleaning components. A reduction or complete avoidance of plastic waste can be achieved by creating jackets, packaging layers as well as connecting and separating layers from soluble materials that either melt or completely dissolve when wetted with cleaning fluid, so that no significant residues remain.

In an advantageous embodiment of the solution proposed according to the invention, the at least one connecting and separating layer and / or a dissolvable sheathing is made from a material or a material mixture which dissolves or melts depending on the temperature. Alternatively, the at least one connecting and separating layer or the dissolvable sheathing can be made from a material or a material mixture which dissolves under the action of water. Finally, there is the possibility of producing the at least one connecting and separating layer and / or the dissolvable sheathing from a material or a material mixture which dissolves when the pH value changes.

All of the above-mentioned variants have in common that no residues of plastic material remain in relation to the connecting and separating layer or in relation to the dissolvable or meltable sheaths, since these dissolve completely in the cleaning fluid for cleaning the interior of the cooking device or the oven. In the above context, the connecting and separating layer serves to separate incompatible substances from one another. On the other hand, the at least one connecting and separating layer has the task of maintaining the block shape of the cleaner combination when it is not used. The individual cleaning components are separated from one another depending on the process, i.e. H. depending on the cleaning method used to clean the interior of a cooking appliance or oven.

In a further, particularly advantageous embodiment of the solution proposed according to the invention, the at least one cleaning component of the cleaning combination in block form is one or more additives with hydrophobing, impregnating, retarding properties, such as paraffin and silicone oils, waxes and paraffins, simple> C5 and polyhydric alcohols> C6, in particular fatty alcohols C6-22, fatty acids> C12, fatty acid esters, fatty acid amides, fatty amines, long-chain dicarboxylic acids, polyacrylates and their copolymers, anionic, nonionic, amphoteric and cationic surfactants, or thickeners. One or more of these additives give the respective cleaning component a controlled, accelerated or retarded dissolution behavior. Accordingly, depending on the process control for cleaning the interior of a cooking appliance or an oven, a corresponding cleaning component can be completely dissolved or only partially dissolved.

In a further, particularly advantageous embodiment of the solution proposed according to the invention, one or more water-soluble additives with a defined melting point (up to 200 ° C.) from the group of surfactants, soaps, polyethylene glycols and polyalkylene glycols, sugar, are added to the at least one cleaning component of the cleaning combination in block form, Sugar derivatives, salts with a high proportion of water of crystallization and organic acids. If such a cleaning component is placed protected from contact with water, it will not dissolve below the melting point of these additives. Above the melting point of these additives, the detergent component will melt and can therefore assume a position that leads to its dissolution through contact with water.

In the case of the cleaning combination proposed according to the invention, provision is made for the block shape, viewed in the vertical direction, to have decreasing diameters starting from a fixing position in the receiving device. In addition, there is the possibility of designing the block shape of the cleaner combination in such a way that it has a wedge-shaped or a stepped geometry.

Depending on the geometry of the receiving device, it can be achieved, for example, that a block shape, which is characterized by a diameter that is decreasing in the vertical direction, changes its shape when sprayed with water and thus emerges from the receiving device, which can for example be in the form of a ring, dissolves and falls into the cleaning fluid due to gravity. This applies analogously to the wedge-shaped or stepped block shape of the cleaner combination.

In the case of the cleaning combination proposed according to the invention, the receiving device for the block form can be designed in such a way that it is designed as an inserting device in a ring shape or as a receiving head dissolves depending on the process parameters.

In the solution proposed according to the invention, the cleaner combination can be detachably or non-detachably received in block form in a functional component, wherein the functional component can be a receiving device, a receiving head or an insertion device. For example, the cleaning combination proposed according to the invention can be cast in block form into an opening of a receiving head and, depending on the process parameters, be released from this, for example by spraying with H ₂ O or depending on the temperature.

The cleaner combination in block form is positioned in the interior of the cooking appliance to be cleaned or the oven to be cleaned in such a way that the change in properties of at least one connecting and separating layer and / or a casing, for example a gravity-controlled release of the cleaning component, takes place. For example, melts a compound and Separating layer that separates two incompatible substances from one another in the original state, one cleaning component separates from the other at the connecting and separating layer due to gravity. In a further development of the cleaning combination proposed according to the invention, it can be positioned in a shielding chamber on a dissolving platform. A spray jet from a spray device can be directed at the cleaning agent combination via a lateral opening in the shielding chamber, so that the cleaning agent combination is dissolved in block form on the opening platform.

The detergent combination in block form can, for example, in addition to at least one decalcifying or detergent block, comprise a further detergent block, furthermore a bleaching agent block in tablet form and / or an enzymatic detergent block, whereby these detergent components are each connected to one another by means of a connecting and separating layer in the original state or in the original state from can be enclosed in a dissolvable or fusible casing. The cleaning combination proposed according to the invention in block form comprises at least one connecting and separating layer, the water-soluble or water-insoluble materials, such as wax and paraffins, simple> C5 and polyhydric alcohols> C6, in particular fatty alcohols C6-22, fatty acids and fatty acid derivatives, anionic, nonionic surfactants , PEG, APG, sugar and sugar derivatives.

In the case of the cleaning combination proposed according to the invention in block form, on the other hand, the sheaths of the individual cleaning components are made of water-soluble and water-insoluble materials such as waxes and paraffins, simple> C5 and polyhydric alcohols> C6, in particular fatty alcohols C6-22, fatty acids and fatty acid derivatives, anionic, nonionic surfactants, PEG, APG, sugar and sugar derivatives.

Furthermore, the invention relates to a method for the selective gravity-controlled release of cleaning components of a cleaning combination in block form by removing at least one cleaning component by means of a temperature increase for dissolving or melting at least one connecting or separating layer or a casing or by spraying the cleaning component to dissolve a this connecting and separating layer separating further cleaning components or a dissolvable sheathing.

The method is also advantageously suitable for displaying the dissolution of some cleaning components after they have been selectively sprayed on by means of a spray device after they have been detached from the cleaning combination. The detergent component, each detached from the detergent combination in block form, is placed on a dissolving platform, where it is acted upon in a targeted manner by spray jets from a spray device and is almost completely dissolved on the dissolving platform.

In a further development of the method proposed according to the invention, at a temperature level in the range of a melting temperature of an ingredient of the detergent component or of the decalcifying or cleaning block or of the further cleaning block above the operating temperature of a conveyor unit by fluid circulation by melting the decalcifying or cleaning block, the respective product or the respective ingredient of the Detergent component supplied to the cleaning fluid or a dissolving platform and a dissolution achieved by moving the fluid or exposure to spray jets.

1. a) Einsetzen der Reinigerkombination in Blockform in eine Aufnahmevorrichtung, die innerhalb eines Innenraums eines zu reinigenden Geräts angeordnet ist,
2. b) Zirkulation eines Fluids innerhalb des Innenraums mittels einer Sprüheinrichtung oder eines Flügelrades,
3. c) Durchführung einer Reinigung des Innenraums bei einer Temperatur T₁, wobei die Temperatur T₁ über einer Schmelztemperatur des Materials der Verbindungs- und Trennschicht und/oder der Schmelztemperatur der Ummantelung liegt,
4. d) Herabfallen der zuvor durch die Verbindungs- und Trennschichten verbundenen Reinigerkomponenten in ein Reinigungsfluid und/oder Auflösung der von der Ummantelung für Reinigerkomponenten freien durch die Sprüheinrichtung benetzten Reinigerkomponenten und
5. e) Entkalkung oder finale Reinigung bei einer Temperatur T₂, die oberhalb der Temperatur T₁ liegt und größer ist als die Schmelztemperatur des in der Aufnahmevorrichtung fixierten Entkalker- oder Reinigerblocks.

In a further method proposed according to the invention for releasing detergent components of a detergent combination in block form, the following process steps are carried out:

1. a) inserting the cleaner combination in block form in a receiving device which is arranged within an interior of a device to be cleaned,
2. b) circulation of a fluid within the interior by means of a spray device or an impeller,
3. c) carrying out a cleaning of the interior at a temperature T ₁ , the temperature T _{1 being} above a melting temperature of the material of the connecting and separating layer and / or the melting temperature of the casing,
4. d) the cleaning components previously connected by the connecting and separating layers falling into a cleaning fluid and / or dissolution of the cleaning components and which are free from the casing for cleaning components and wetted by the spraying device
5. e) Decalcification or final cleaning at a temperature T ₂ which is above temperature T ₁ and is greater than the melting temperature of the decalcifying or cleaning block fixed in the receiving device.

• f) Durchführung einer Vorreinigung bei einer Temperatur T₁, wobei die Temperatur T₁ unterhalb einer Schmelztemperatur des Materials der Verbindungs- und Trennschichten und unterhalb eines Schmelzpunkts des Materials einer zweiten Ummantelung liegt, nach Durchführung der Verfahrensschritte a) und b),
• g) Freisetzung eines enzymatischen Reinigerblocks entweder durch Schmelzen einer dritten Verbindungs- und Trennschicht sowie einer zweiten Ummantelung oder durch Ansprühen mittels eines Sprühstrahls einer Sprüheinrichtung,
• h) Intensivreinigung bei einer zweiten Temperatur, die oberhalb des Schmelzpunkts des Materials der Verbindungs- und Trennschichten und des Schmelzpunkts des Materials der ersten Ummantelung liegt.
• i) Durchführung der Verfahrensschritte d) und e).

This process is further developed by going through the following process steps:

• f) Carrying out a pre-cleaning at a temperature T ₁ , the temperature T _{1 being} below a melting point of the material of the connecting and separating layers and below a melting point of the material of a second sheathing, after process steps a) and b) have been carried out,
• g) Release of an enzymatic cleaner block either by melting a third connecting and separating layer and a second coating or by spraying with a spray jet from a spray device,
• h) Intensive cleaning at a second temperature which is above the melting point of the material of the connecting and separating layers and the melting point of the material of the first casing.
• i) Implementation of process steps d) and e).

Advantages of the invention

Advantageously, the solution proposed according to the invention can achieve a drastic reduction in the amount of packaging required in terms of the plastic content. In this way, for example, cleaner combinations formed as cleaner cartridges or tabs can be provided in block form, which are characterized by dissolvable connecting and separating layers and / or by the casings surrounding the individual, incompatible cleaner components. A lower product use can be achieved with a significant reduction in environmental pollution that can be achieved at the same time through the separation of highly active ingredients that react with one another, but have synergy effects when used. These can advantageously be separated from one another during transport and during storage by the connecting and separating layers separating them, which, however, are different in the case of use when cleaning an interior of a cooking appliance or of a furnace completely dissolve, depending on the process parameters of the cleaning process used, or melt on leaving no waste and dissolve in the cleaning fluid without leaving any residue.

For example, in an advantageous variant, the cleaning and decalcifying functions can be set at different times depending on the process parameters that are run through in the cleaning process. A decalcifying agent can, for example, be contained in the cleaning combination proposed according to the invention in block form. The individual cleaner components include incompatible, i. H. Components that are unstable on contact with one another and react with one another, for example sodium hydroxide, bleach, enzymes, etc. in tab form, which are advantageously separated from one another during storage by the connecting and separating layer. These dissolve or melt during the cleaning process. The component that is unstable with respect to environmental influences, for example sodium hydroxide, can also be protected during storage and transport by the dissolvable coating.

Alternatively, there is the possibility of designing the cleaner combination in block form as a cleaning product having at least three cleaning components. According to this embodiment, a decalcifying or cleaning block is designed as a block; Furthermore, the cleaning components are designed in such a way that a two-phase product is provided for carrying out a pre-cleaning and for a subsequent intensive cleaning, wherein the individual cleaning components of the two-phase product can be released at different times.

In a further embodiment variant, a receiving device can be designed in such a way that the cleaning combination proposed according to the invention is poured into it in block form and the cleaning or decalcifying function takes place at different times depending on the cleaning process carried out. For example, in this embodiment the decalcifier is designed in block form, which is introduced into a cavity of a receiving or distributing device and is thereby protected from the cleaning fluid during part of the cleaning process and can only be released in a retarded manner.

Brief description of the drawings

The invention is described in more detail below with reference to the drawings.

Figur 1

eine erste Ausführungsvariante einer erfindungsgemäßen Reinigerkombination in Blockform, eingehängt in eine Aufnahmevorrichtung innerhalb eines Innenraums eines zu reinigenden Gargeräts oder Ofens,

Figur 2

eine zweite Ausführungsvariante einer erfindungsgemäßen Reinigerkombination in Blockform als Drei-Stufen-Reinigungsprodukt,

Figur 3

die erfindungsgemäße Reinigerkombination in Blockform eingesetzt in eine Aufnahme- und Verteileinrichtung,

Figur 4

eine erfindungsgemäße Reinigerkombination in Blockform eingelassen in eine Abschirmkammer mit einer seitlichen Öffnung und einer geneigt angeordneten Auflöseplattform und

Figur 5

eine erfindungsgemäße Reinigerkombination in Blockform gemäß Figur 4 mit abgelöster Reinigerkomponente und seitlich angeordneter Sprüheinrichtung zur Auflösung derselben.

Show it:

Figure 1

a first variant of a cleaner combination according to the invention in block form, suspended in a receiving device within an interior of a cooking appliance or oven to be cleaned,

Figure 2

a second variant of a cleaning combination according to the invention in block form as a three-stage cleaning product,

Figure 3

the cleaner combination according to the invention in block form inserted into a receiving and distributing device,

Figure 4

a cleaning combination according to the invention in block form embedded in a shielding chamber with a side opening and an inclined opening platform and

Figure 5

a cleaning combination according to the invention in block form according to Figure 4 with detached cleaning component and laterally arranged spray device to dissolve the same.

Design variants

Figure 1 shows a first variant of the cleaning combination 10 proposed according to the invention in block form 12.

From the representation according to Figure 1 it can be seen that a cleaner combination 10 in block form 12 is accommodated in an interior 14 of a cooking appliance 16, an oven 16 or a dishwasher. In this exemplary embodiment, the cleaner combination 10 in block form 12 is suspended in a receiving device 32, which is designed as a simple suspension device. In the in Figure 1 The embodiment variant shown comprises the cleaner combination 10 in block form 12 for example a decalcifying or cleaning block 18 and a further cleaning block 20. These are separated from one another by a first connecting and separating layer 24 and at the same time connected to one another within the block mold 12. Furthermore, the in Figure 1 illustrated first embodiment of the cleaner combination 10 in block form 12 a bleaching agent block 22. The bleaching agent block 22, which is shown in FIG Figure 1 Disc-shaped or tablet-shaped, can be connected to the further cleaning block 20 by a second connecting and separating layer 26 and separated from the further cleaning block 20 by the connecting and separating layer 26, which has dissolvable or meltable properties.

From the representation according to Figure 1 it can be seen that the cleaning combination 10 shown there in block form 12 comprises a plurality of cleaning components 17 which are connected to and separated from one another by connecting and separating layers 24 and 26, respectively.

Figure 1 also shows that in this embodiment variant the further cleaner block 20 is enclosed by a first dissolvable casing 28.

In the Figure 1 The cleaning combination 10 shown in block form 12 is hooked into the receiving device 32 and is located in the interior 14 above a cleaning fluid 30. The direction of action of gravity acting on the cleaning combination 10 is indicated by the arrow 34.

In the cleaner combination 10 in block form 12 are incompatible, z. B. reacting with each other, basic components, for example the decalcifying or cleaning block 18 designed as a decalcifying block, containing acid, or as a cleaning block, containing NaOH, from the bleach block 22, for example via the interposition of the first casing 28 having further cleaning block 20 and through the dissolvable or fusible first and second connecting and separating layers 24, 26 separated. The cleaner combination 10 can thus be stored in block form 12 without having to accept any loss of quality. Components that are unstable with respect to environmental influences, for example NaOH, can for example be protected by the first casing 28 of the further cleaner block 20 during storage and transport.

At the in Figure 1 The first embodiment variant of the cleaning combination 10 proposed according to the invention in block form 12 is hung in the receiving device 32 in the interior 14 of the cooking appliance 16 to be cleaned or of the oven 16 to be cleaned. The cleaning fluid 30 is circulated within the interior 14 from which in Figure 1 only the sump is shown, for example by means of an impeller. The interior 14 is cleaned at a temperature T ₁ , this temperature T _{1 being} above a melting point of the material or material mixture of the first and second connecting and separating layers 24, 26. Furthermore, the temperature T _{1 is} above the melting point of the material of the first casing 28. The melting of the material of the connecting and separating layers 24, 26 causes the cleaning components 17 to fall due to gravity, e.g. B. of the further cleaner block 20 and the bleaching agent block 22 into the cleaning fluid 30. The melting of the material of the first dissolvable casing 28 leads to the dissolution of the further cleaner block 20 in the cleaning fluid 30, or to its dissolution when sprayed with circulated cleaning fluid 30.

Decalcification or further cleaning of the interior 14 of the cooking appliance 16 to be cleaned takes place at a temperature T ₂ which is above the first-mentioned temperature T ₁ . At the temperature T ₂ , the decalcifying or cleaning block 18 is released due to the melting of ingredients in the decalcifying or cleaning block 18.

Figure 2 shows a second variant of the cleaning combination 10 proposed according to the invention in block form 12 as a three-stage cleaning product. According to the representation in Figure 2 the decalcifying or cleaning block 18, the further cleaning block 20, for example NaOH-based, a bleaching agent block 22, for example in the form of a tablet, and an enzymatic cleaning block 36. Figure 2 shows that this cleaner combination 10 in block form 12 is likewise suspended in a receiving device 32 embodied in a ring shape within an interior space 14 to be cleaned. Here, for example, the decalcifying or cleaning block 18 has a decreasing diameter profile viewed in the vertical direction.

In the variant according to Figure 2 the further cleaner block 20 is enclosed by a first dissolvable casing 28, furthermore the enzymatic cleaner block 36 is enclosed by a second dissolvable casing 38. According to Figure 2 The cleaner combination 10 in block form 12 comprises the cleaner components 17, ie the decalcifying or cleaner block 18, the further cleaner block 20, the bleaching agent block 22 and the enzymatic cleaner block 36.

The individual cleaning components 17 are each connected to one another or separated from one another by the dissolvable or fusible connecting and separating layers 24, 26 and 40. In addition to the decalcifying or cleaning block 18, the further cleaning block 20 and the bleaching agent block 22, the cleaning components 17 can also comprise an enzymatic cleaning block 36.

It should also be noted that in the variant according to Figure 2 the further cleaner block 20 is surrounded by the first dissolvable casing 28 and the enzymatic cleaner block 36 is surrounded by the second dissolvable casing 38.

The in Figure 2 The cleaning combination 10 shown in block form 12 can be used to provide a two-phase product which can be released at different times to carry out a pre-cleaning of the interior 14 and a subsequent intensive cleaning of the interior 14.

According to the representation Figure 2 it can be seen that to carry out the cleaning of the interior 14 with the in Figure 2 illustrated second embodiment of the cleaning combination 10 proposed according to the invention in block form 12, this is first inserted into the receiving device 32. The cleaning fluid 30 is circulated, for example, by means of a laterally arranged spray device 42, from which spray jets 44 emerge in the spray direction 46, which laterally impinge on the cleaning combination 10 in block form 12 suspended in the receiving device 32. For example, a pre-cleaning of the interior 14 is carried out at a temperature T ₁ , the temperature T _{1 being} below the melting point of the material of the connecting and separating layers 24, 26 and below the melting point of the material of the first casing 28. At temperature T ₁ , only the release of the material of the enzymatic cleaner block 36 takes place either by melting the third connecting and separating layer 40 and by melting or dissolving the material of the second casing 38 or by dissolving a water-soluble third connecting and separating layer Separating layer 40 as well as the material of the second casing 38 by spraying with cleaning fluid 30 via the spray device 42 in the form of the spray jets 44 aligned in the spray direction 46.

Intensive cleaning can take place at a temperature T ₂ , this temperature T ₂ exceeding the melting point of the material of the connecting and separating layers 24, 26 and the melting point of the material of the first casing 28. As a result, the material of the connecting and separating layers 24, 26 is melted, which leads to gravity-induced falling of the _{cleaning components 17 that have not yet been separated at a temperature T 1} , namely the further cleaning block 20 and the bleaching block 22 into the cleaning fluid 30. Furthermore, the material melts when _{the first casing 28, which surrounds the further cleaner block 20 and the bleaching agent block 22, reaches a temperature T 2} , whereby the further cleaner block 20 and the bleaching agent block 22 are dissolved in the cleaning fluid 30. The enzymatic cleaner block 36 was separated off beforehand at the temperature T _1.

Finally, at a further increased temperature T ₃ , which exceeds the temperature T ₂ and the temperature T ₁ , decalcification or further cleaning can take place by releasing the decalcifying or cleaning block 18 by melting the ingredients of the decalcifying or cleaning block 18. Figure 3 a further variant of the cleaning combination 10 proposed according to the invention in block form 12 can be seen. As shown in Figure 3 the cleaning combination 10 is received in block form 12 with part of the decalcifying or cleaning block 18 in the cavity of a receiving head with spray device 50. The pick-up head with spray device 50 is part of a pick-up device 32. Here, too, the ingredients of the decalcifying or cleaning block 18 and the further cleaning block 20 are released according to the process parameters at different times. The decalcifying or cleaning block 18 is block-shaped and inserted into the cavity of the receiving head with the spray device 50 of the receiving device 32. This cavity des Pick-up head with spray device 50 offers protection from the cleaning fluid 30 during cleaning, so that a retarded dissolution of the decalcifying or cleaning block 18 is only possible after the first connecting and separating layer 24 has been dissolved or melted and the further cleaning block 20 - for Example with a mildly alkaline effect - was detached and dissolved in the cleaning fluid 30 to be circulated.

Before the start of a cleaning program, the cleaning combination 10 in block form 12 is inserted into the receiving head with spray device 50 of the receiving device 32. To carry out a cleaning cycle, the pick-up head with spray device 50 is to be connected to the pick-up device 32 and the cleaning system. After the start of the cleaning program, the cleaning fluid 30 is circulated through the receiving head with spray device 50, which is connected to the cleaning system by means of the receiving device 32. Cleaning is carried out at a temperature T ₁ , the temperature T _{1 being} greater than the temperature of the melting point of the Material of the first connecting and separating layer 24.

When the temperature T ₁ is present, the material or material mixture of the first connecting and separating layer 24 melts. This leads to a gravity-induced falling of a cleaning component 17, namely the further cleaning block 20 into the cleaning fluid 30 on the floor of the interior 14 20 enclosed by the first dissolvable casing 28, this melts at the temperature T ₁ , which leads to a dissolution of the cleaning component 17 in the form of the further cleaning block 20 with, for example, mildly alkaline ingredients by the cleaning fluid 30. Albeit in the representation according to Figure 3 Not shown, the ingredients of the further cleaner block 20 can be dissolved by a spray jet 44 of cleaning fluid 30 directed from the side via the spray device 42 in the spray direction 46.

Decalcification or further cleaning can take place at a further increased temperature T ₂ , which _{exceeds temperature T 1} , in that the decalcifying or cleaning block 18 is released by melting ingredients of the decalcifying or cleaning block 18. By placing the decalcifying or cleaning block 18 in the cavity of the receiving head with spray device 50 of the receiving device 32, the decalcifying or cleaning block 18 is in front of the fluid protected and remains longer in the receiving head with spray device 50. Before the decalcifying or cleaning block 18 becomes active, the ingredients of the further cleaning block 20 are dissolved in the cleaning fluid 30 after the first connecting and separating layer 24 has been dissolved or melted.

The representations of the Figures 4 and 5 a variant of the cleaner combination 10 according to the invention can be seen in block form 12, which is placed in a shielding chamber 52.

The Figures 4 and 5 A cleaning combination 10 in block form 12 is common, which comprises several cleaning components 17: the decalcifying or cleaning block 18, the further cleaning block 20, a tablet-shaped bleaching agent block 22 and at the bottom the enzymatic cleaning block 36. Furthermore, the cleaning combination 10 in block form 12 between the individual Dissolvable or fusible connecting and separating layers 24, 26, 40 arranged with cleaning components.

The Figures 4 and 5 it can be seen that the cleaning combination 10 in block form 12 is suspended in an annular insert of a receiving device 32 in the interior 14 of a cooking appliance 16 or an oven 16 to be cleaned.

Due to the wedge-shaped geometry of the decalcifying or cleaning block 18, the force of gravity 34 has the effect that the cleaning combination 10 remains fixed in the block shape 12. Instead of the wedge shape of the decalcifying or cleaning block 18, it can also have a different geometry, for example a stepped geometry, so that the cleaning combination 10 in block form 12 is also easily received in the receiving device 32.

In contrast to the design variants according to the Figures 1 to 3 is the cleaner combination 10 in block form 12 according to the Figures 4 and 5 received in a shielding chamber 52. The shielding chamber 52 serves to protect the cleaner combination 10 in block form 12 from the spray jets 44. Depending on the configuration, either the cleaner combination 10 in block form 12 is used in its entirety, or the cleaner components 17 that are not exposed to the spray jet 44 entering through the lateral opening 58 , protected. The shielding chamber 52 comprises a bottom 54, which together with a side wall of the shielding chamber 52 has a lateral opening 58. This is at the level of the spray device 42, from which spray jets 44 of cleaning fluid 30 emerging in the spray direction 46 can enter the shielding chamber 52 via the lateral opening 58. From the representation according to Figure 4 it can be seen that the floor 54, which serves as the opening platform 56, assumes an inclined position 66 and has an inclined position 60 due to the angle 62.

The spray jets 44 of the cleaning fluid 30 dissolve the ingredients of the enzymatic cleaner block 36, which is located at the lower end of the cleaner combination 10 in block form 12. As the process temperature rises, the third connecting and separating layer 40 dissolves, so that the laterally loosened enzymatic cleaner block 36 is separated from the cleaner combination 10 in block form 12 and - as shown in the figure - falls onto the opening platform 56. When the enzymatic cleaner block 36 is further acted upon by the laterally directed spray jets 44, which emerge from the spray device 42 under high pressure, the enzymatic cleaner block 36 to be dissolved on the inclined position 66 occupying the dissolving platform 56 is dissolved, and due to the inclined position 66 the dissolving platform 56, the ingredients of the enzymatic cleaner block 36 get into the sump of the cleaning fluid 30 at the bottom of the interior space 14.

When carrying out a cleaning process with a temperature rise within the interior 14, for example, the melting temperature of the material of the first and second connecting and separating layers 24, 26 is reached, so that they fall off the cleaning combination 10 in block form 12 and are placed on the floor 54, i. H. reach the opening platform 56 having an inclined position 60. If the cleaner components 17 placed there are dissolved by the spray jets 44 emerging from the spray device 42, they also get into the cleaning fluid 30 so that a further cleaning step can be carried out since further cleaning components 17 are now dissolved in the cleaning fluid 30.

In a cleaning process, the decalcifying or cleaning block 18 can be melted at a temperature that does not allow the cleaning fluid 30 to be circulated and thus the dissolving platform 56 to be sprayed. This can be due to the fact that the melting temperature of the decalcifying or Cleaner block 18 is above the operating temperature of a delivery unit or that the melting temperature is above the boiling temperature of the cleaning fluid 30. It is significant that the decalcifying or cleaning block 18 contains components that have a melting point and are water soluble. Such ingredients can be surfactants, sugar, sorbitol, mannitol, glucose, fructose or salts with a high proportion of water of crystallization or sodium sulfate.

The method differs from the one described above in that the cleaning fluid 30 is not pumped around, but the heating and air circulation within the furnace 16 within the interior space 14 is active. This variant of the method can also be provided without providing a shielding chamber 52. It would only be necessary to select a protected location within the cooking appliance 16 or oven 16; partial detachment, however, could not be avoided due to the water-soluble properties. By means of the shielding chamber 52, the water-soluble decalcifying or cleaning agent block 18 is, however, optimally protected from being dissolved by the spray jet 44. The decalcifying or cleaning block 18 contains water-soluble additives whose melting point is above the maximum pump operating temperature or the boiling point of the cleaning fluid 30. At a temperature of the interior 14 above the melting temperature of the decalcifying or cleaning block 18, this will drip down into the cleaning fluid 30, as in FIG Figures 1, 2 and 3 is shown, or placed on the dissolving platform 56, as shown in the Figures 4 and 5 can be taken. After a sufficiently long period of time, the decalcifying or cleaning block 18 is completely melted and either dissolved in the cleaning fluid 30 or positioned on the dissolving platform 56. Due to the only brief heating and air circulation above the melting temperature of the decalcifying or cleaning block 18 to melt the decalcifying or cleaning block 18 without pumping the cleaning fluid 30, the latter has only warmed up slightly. When the cleaning fluid 30 now begins to be pumped around or the spray device 42 is started up, the melted decalcifying or cleaning agent block 18 dissolves almost completely either in the cleaning fluid 30 or on the dissolving platform 56 due to its water-soluble properties.

The invention is not restricted to the exemplary embodiments described here and the aspects emphasized therein. Rather, it is within that defined by the claims A large number of modifications are possible that are within the scope of professional action. <u> List of reference symbols </u> 10 Detergent combination 50 Pick-up head with spray device 12th Block shape 14th inner space 52 Shielding chamber 16 Cooking device, oven 54 ground 17th Detergent component 56 Dissolution platform 18th Descaling or cleaning block 58 Side opening 60 Inclination 20th Another cleaner block 62 angle 22nd Bleach block 64 Horizontal position 24 First connecting and separating layer 66 Inclined position 68 Axis of symmetry 26th Second connection and separation layer 28 First sheathing 30th Cleaning fluid 32 Cradle 34 Direction of action of gravity 36 Cleaner block, enzymatic 38 Second sheathing 40 Third connecting and separating layer 42 Spraying device 44 Spray jet 46 Direction of spray

Claims (21)

Cleaner combination (10) in block form (12) with at least one cleaning component (17) in the form of a decalcifying or cleaning block (18), for receiving in a receiving device (32) in an interior (14) of a cooking device or oven (16), thereby characterized in that, in addition to the decalcifying or cleaning block (18), the cleaning combination (10) contains further cleaning components (17) which are connected to one another via at least one connecting and separating layer (24, 26, 40), which prevent a cleaning component ( 17) and / or which are provided with a dissolvable casing (28, 38). Cleaner combination (10) according to claim 1, characterized in that the at least one connecting and separating layer (24, 26, 40) and / or the dissolvable casing (28, 38) is made of a material or a material mixture that dissolves or dissolves depending on the temperature melts. Cleaner combination (10) according to claim 1, characterized in that the at least one connecting and separating layer (24, 26, 40) and / or the dissolvable sheathing (28, 38) is made of a material or a material mixture that changes under the action of H ₂ O dissolves. Cleaning combination (10) according to claim 1, characterized in that the at least one connecting and separating layer (24, 26, 40) and / or the dissolvable sheathing (28, 38) is made of a material or a material mixture that is Change in pH dissolves. Cleaner combination (10) according to claims 1 to 4, characterized in that at least one cleaner component (17) has one or more additives with hydrophobing, impregnating, retarding properties, such as paraffin and silicone oils, waxes and paraffins, simple> C5 and polyhydric alcohols> C6, especially fatty alcohols C6-22, fatty acids> C12, fatty acid esters, fatty acid amides, Fatty amines, long-chain dicarboxylic acids, polyacrylates and their copolymers, anionic, nonionic, amphoteric and cationic surfactants, thickeners that give the respective cleaning component (17) a controlled,
accelerated or
retarding
Give dissolving behavior. Detergent combination (10) according to claims 1 to 4, characterized in that at least one detergent component (17) contains one or more water-soluble additives with a defined melting point, in particular up to 200 ° C, from the group of surfactants, soaps, polyethylene glycols and polyalkylene glycols, sugar , Sugar derivatives, salts with a high proportion of water of crystallization, organic acids that first dissolve at a defined melting temperature and then dissolve the cleaning component (17) in the cleaning fluid (30) at lower temperatures. Cleaner combination (10) according to Claims 1 to 6, characterized in that the block shape (12), viewed in the vertical direction, has decreasing diameters starting from a fixing position in the receiving device (32). Cleaning combination (10) according to claim 7, characterized in that the block shape (12) is wedge-shaped or stepped. Cleaner combination (10) according to Claims 1 to 8, characterized in that the receiving device (32) is designed as an insertion device in the form of a ring or as a receiving head with a spray device (50). Cleaning combination (10) according to claims 1 to 8, characterized in that the block form (12) is received in a functional component and the functional component is a receiving device (32), a receiving head with spray device (50) or an insertion device. Cleaning combination (10) according to claims 1 to 8, characterized in that the block form (12) is positioned in the interior (14) in such a way that by changing the properties of at least one connecting and separating layer (24, 26, 40) and / or a casing (28, 38) a gravity-controlled release of the cleaning component (17) takes place. Cleaner combination (10) according to claims 1 to 8, characterized in that it is positioned in a shielding chamber (52) on a dissolving platform (56) and is at least partially exposed to spray jets (44) from a spray device (42) via a lateral opening (58) is. Detergent combination (10) in block form (12) according to claim 1, characterized in that it contains a decalcifying or cleaning block (18), a further cleaning block (20), a bleaching agent block (22) and an enzymatic cleaning block (36), each of which are connected to one another by means of a connecting and separating layer (24, 26, 40) or are enclosed by a casing (28, 38). Cleaner combination (10) in block form (12) according to claim 1, characterized in that the connecting and separating layers (24, 26, 40) consist of waxes or paraffins, simple> C5 and polyhydric alcohols> C6, in particular fatty alcohols C6-22, fatty acids and fatty acid derivatives, anionic, nonionic surfactants, PEG, APG, sugar and sugar derivatives. Cleaner combination (10) in block form (12) according to claim 1, characterized in that the coating (28, 38) consists of waxes and paraffins, simple> C5 and polyhydric alcohols> C6, in particular fatty alcohols C6-22, fatty acids and fatty acid derivatives, anionic, nonionic surfactants, PEG, APG, sugar and sugar derivatives. Method for the selective gravity-controlled release of cleaning components (17) of a cleaning combination (10) in block form (12) according to one of Claims 1 to 15 by detaching the cleaning component (17) by means of a temperature increase to melt a connecting and separating layer (24, 26, 40) or a casing (28, 38) or spraying to dissolve a connecting and separating layer (24, 26, 40) or a casing (28, 38). Method according to Claim 16, characterized in that a cleaning component (17) is dissolved after it has been selectively sprayed on by a spray device (42) after it has been detached from the cleaning combination (10). The method according to claim 16, characterized in that the cleaning component (17) detached from the cleaning agent combination (10) is placed on a dissolving platform (56) and is specifically acted upon there by spray jets (44) from a spray device (42) and is dissolved there. Method according to claim 16, characterized in that at a temperature level in the range of a melting temperature of an ingredient of the cleaning component (17) or of the decalcifying or cleaning block (18) and above the operating temperature of a conveying unit for fluid circulation by melting the decalcifying or cleaning block (18) the respective product is fed to the fluid or to a dissolving platform (56), and dissolution takes place by moving the fluid or applying spray jets (44). Method for releasing cleaning components (17) of a cleaning combination (10) in block form (12) according to one of Claims 1 to 15 with the following process steps: a) inserting the cleaning combination (10) in block form (12) in a receiving device (32) which is arranged within an interior (14) of a cooking appliance (16), b) circulation of a fluid within the interior space (14) by means of a spray device (42) or an impeller, c) carrying out a cleaning of the interior (14) at a temperature T ₁ , the temperature T ₁ above a melting temperature of the material the connecting and separating layers (24, 26, 40) and / or the melting temperature of the sheath (28, 38), d) The cleaning components (17) previously connected by the connecting and separating layers (24, 26, 40) falling into a cleaning fluid (30) and / or dissolving of the cleaning components (17) free from the casing (28, 38) the spray device (42) wetted cleaning components (17), e) Decalcification or final cleaning at a temperature T ₂ which is above temperature T ₁ and is greater than the melting temperature of the decalcifying or cleaning block (18) fixed in the receiving device (32). Process according to claim 20 with the following process steps: f) Carrying out a pre-cleaning at a temperature T ₁ , the temperature T _{1 being} below a melting temperature of the material of the connecting and separating layers (24, 26, 40) and below a melting point of the material of the second casing (38), after carrying out the Process steps a) and b), g) release of an enzymatic cleaner block (36) either by melting a third connecting and separating layer (40) and a second casing (38), or by spraying with a spray jet (44) from a spray device (42), h) intensive cleaning at a second temperature which is above the melting point of the material of the connecting and separating layers (24, 26, 40) and the melting point of the material of the first casing (28), i) Implementation of process steps d) and e).

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