Cleaning and/or rinsing agent molded article

Abstract

The present invention relates to a cleaning and/or rinsing agent molded article (1, 1′, 1″) which is formed as a roller with a roll surface (2) and comprises two end faces (3, 4) connected by the roll surface (2). The cleaning and/or rinsing agent molded article (1, 1′, 1″) comprises an end face portion (5, 6) on at least one of the two end faces (3, 4), which is designed so that the cleaning and/or rinsing agent molded article (1, 1′, 1″) falls sideways onto the roll surface (2) when the cleaning and/or rinsing agent molded article (1, 1′, 1″) meets the relevant end faces (3, 4) or is placed against a solid surface. A cleaning product comprises a pouch, in which a cleaning and/or rinsing agent molded article of this type is located. A cleaning product (10) is also described, comprising a sealed pouch (11) in which a cleaning and/or rinsing agent molded article (1, 1′, 1″) of this type is located. Also described is the use of a cleaning and/or rinsing molded article (1, 1′, 1″) of this type for cleaning the interior of an appliance and a method for cleaning the interior of an appliance, more particularly an industrial cooking appliance (100) using the cleaning and/or rinsing agent molded article (1, 1′, 1″). Finally described are a method and a device for the production of a cleaning and/or rinsing agent molded article (1, 1′, 1″) of this type.

Claims

1. A cleaning and/or rinsing agent molded article, comprising: a cylindrical roll surface which is formed as a roller that is substantially cylindrical; and two end faces connected by the roll surface, wherein the cleaning and/or rinsing agent molded article has, on at least one of the two end faces, an end face portion, which is shaped so that the cleaning and/or rinsing agent molded article falls sideways onto the roll surface when the cleaning and/or rinsing agent molded article meets or is placed on a solid surface with the at least one end face, and the cylindrical roll surface has a length, in a length direction of the molded article, that is greater than a height, in the length direction of the molded article from an end of the cylindrical roll surface, of the at least one end surface.

2. The cleaning and/or rinsing agent molded article according to claim 1, wherein the end face portion is formed in a substantially dome-shaped or conical manner.

3. A cleaning and/or rinsing agent molded article, comprising: a roll surface which is formed as a roller that is substantially cylindrical; and two end faces connected by the roll surface, wherein the cleaning and/or rinsing agent molded article has, on at least one of the two end faces, an end face portion, which is shaped so that the cleaning and/or rinsing agent molded article falls sideways onto the roll surface when the cleaning and/or rinsing agent molded article meets or is placed on a solid surface with the at least one end face, which, in its surface at least in the roll surface, has a plurality of cavities or grooves.

4. The cleaning and/or rinsing agent molded article according to claim 3, wherein of the plurality of cavities or groves, at least one of the grooves runs in the longitudinal direction of the roll surface from at least one of the two end faces that is formed across a partial portion of the roll surface.

5. The cleaning and/or rinsing agent molded article according to claim 1, wherein the at least one end face portion is 40% or less of the total length of the cleaning and/or rinsing agent molded article.

6. A cleaning and/or rinsing agent molded article, comprising: a roll surface which is formed as a roller that is substantially cylindrical; and two end faces connected by the roll surface, wherein the cleaning and/or rinsing agent molded article has, on at least one of the two end faces, an end face portion, which is shaped so that the cleaning and/or rinsing agent molded article falls sideways onto the roll surface when the cleaning and/or rinsing agent molded article meets or is placed on a solid surface with the at least one end face, wherein a density of the cleaning and/or rinsing agent molded article along a longitudinal axis of the cleaning and/or rinsing agent molded article varies, and the density of the cleaning and/or rinsing agent molded article is higher in a region, which is spaced apart from the end face portion, than at the end face portion.

7. The cleaning and/or rinsing agent molded article according to claim 1, which is formed as a cleaning agent molded article and contains a highly alkaline solid cleaning agent comprising an anionic and/or non-ionic surfactant.

Description

(1) The invention will be described once again below in detail with reference to the enclosed figures by means of exemplary embodiments. Identical components are thereby provided with identical reference numerals in the various figures. The figures are generally not true to scale.

(2) FIG. 1 shows a schematic illustration of an exemplary embodiment of a commercial cooking appliance;

(3) FIG. 2 shows a first perspective view of a first exemplary embodiment of a cleaning agent molded article;

(4) FIG. 3 shows a second perspective view of the first exemplary embodiment of a cleaning agent molded article;

(5) FIG. 4 shows a first perspective view of a second exemplary embodiment of a cleaning agent molded article;

(6) FIG. 5 shows a second perspective view of the second exemplary embodiment of a cleaning agent molded article;

(7) FIG. 6 shows a first perspective view of a third exemplary embodiment of a cleaning agent molded article;

(8) FIG. 7 shows an illustration of an exemplary embodiment of a cleaning product comprising a sealed pouch, in which a cleaning agent molded article according to the first exemplary embodiment is located, prior to tearing open the pouch for introducing the cleaning agent molded article into a commercial cooking appliance for the cleaning thereof;

(9) FIG. 8 shows an illustration of the cleaning product according to FIG. 7 while tearing open the pouch for introducing the cleaning agent molded article into the commercial cooking appliance;

(10) FIG. 9 shows an illustration of the cleaning product according to FIG. 7 after tearing open the pouch in response to the introduction of the cleaning agent molded article into the commercial cooking appliance and the positioning in the drain;

(11) FIG. 10 shows a rough schematic illustration of an exemplary embodiment of a mold of a device for the production of a cleaning agent molded article according to the first exemplary embodiment in a first operating state;

(12) FIG. 11 shows a rough schematic illustration of the mold according to FIG. 10 in a second operating state;

(13) FIG. 12 shows a rough schematic illustration of the mold according to FIG. 10 in a third operating state;

(14) FIG. 13 shows a rough schematic illustration of the mold according to FIG. 10 in a fourth operating state;

(15) FIG. 14 shows a rough schematic illustration of the mold according to FIG. 10 in a fifth operating state;

(16) FIG. 15 shows a rough schematic illustration of the mold according to FIG. 10 in a sixth operating state;

(17) FIG. 16 shows a perspective illustration of a die (press chamber) for the mold according to FIG. 10;

(18) FIG. 17 shows a perspective illustration of a lower punch for the mold according to FIG. 10;

(19) FIG. 18 shows a perspective illustration of an upper punch for the mold according to FIG. 10.

(20) In the exemplary embodiments described below, the cleaning and/or rinsing agent molded article is a highly alkaline cleaning agent molded article, which is used to clean a commercial cooking appliance. However, it is expressly pointed out once again that this is only a preferred exemplary embodiment and that the molded article can also contain rinsing agent components or can be formed as pure rinsing agent mold. A cleaning and/or rinsing agent molded article of this type can likewise also be used to clean the interior of other appliances in the gastronomy and/or food production sector.

(21) FIG. 1 shows, roughly schematically, a cooking appliance 100, here a commercial combination steamer, comprising a cooking chamber 101, into which the food to be cooked, which is to be heated, in particular to be cooked, or the dishes, respectively, is introduced via a (non-illustrated) door during operation. Fittings (which can possibly be removed), such as rail systems, holders or the like, are usually also located in the cooking chamber 101, so as to hold baking sheets, oven-proof dishes, etc., which are formed so as to match them. For the sake of clarity, these fittings are not illustrated here. It is clear that such a combination steamer can also have all of the further usual components, such as, e.g. fans, heating devices for the walls of the cooking chamber, overhead grills, steam generators, as well as a suitable controller for controlling the entire appliance during use when preparing the dishes, but also during the cleaning.

(22) Water, in particular fresh water, for creating water vapor in the cooking chamber 101, can be applied to the cooking chamber 101 via a fresh water supply 109 and a line system 105, which forms a recirculation cycle, or water vapor can be applied directly. The cooking chamber 101 itself, with or without fittings, as well as the line system 105 for the water or the water vapor, respectively, need to be cleaned on a regular basis. A cleaning and/or rinsing agent molded article 1, 1′, 1″ according to the invention can be used for this purpose, as it will be described later. A trace heating 106 of the line system 105 can heat solvents, in particular fresh water or also the cleaning solution itself to a desired temperature. Such a trace heating 106 can in particular be designed electrically, for warm water or for condensing water vapor. The solvent or the cleaning solution, respectively, can thus be introduced or injected, respectively, into the cooking chamber 101 of the cooking appliance 100 via inlet openings 104, in particular nozzles 104. There, it flows into an outlet nozzle 103, which is arranged at the lowest point of a bottom 102, which tapers obliquely in the direction of the outlet nozzle 103. Prior to the start of a cleaning process, as described below, a cleaning agent molded article 1, 1′, 1″ is opinioned in this outlet nozzle, for example on an outlet screen in the outlet nozzle 103. The cleaning agent molded article 1, 1′ 1″ is dissolved by means of the warm or hot water, respectively, which drains via the outlet nozzle, and the liquefied cleaning agent or cleaning concentrate, respectively, formed thereby is conveyed into the line system 105 via a pump 110.

(23) As part of the line system 105 or recirculating cycle, respectively, the cooking appliance 100 comprises a recirculation container 107, which can also serve as storage tank 107 for a cleaning solution. The cleaning concentrate is conveyed through the pump 110 into this recirculation container 107 here. Fresh water can then additionally be supplied into the recirculation container 107 as solvent via the fresh water supply 107 for the further dilution of the cleaning concentrate. For the improved solution and mixing for receiving a cleaning solution with the desired concentration or alkalinity, respectively, the recirculation container 107 can have a (non-illustrated) mixing device, such as for example a stirring unit. To clean the cooking chamber 101 and the line system 105, the cleaning solution provided in the recirculation container 107 can be introduced into the cooking chamber 101 again by means of a further pump 108 via the line system 105 and via the nozzles 104.

(24) During and after ending the cleaning of the cooking chamber 101, the used cleaning solution can drain from the cooking chamber 101 again via the outlet nozzle 103 and can subsequently be pumped further via the pump 110. It can be set thereby via an outlet valve 111 whether cleaning solution coming from the cooking chamber 101 is pumped back into the line system 105 or the recirculation container 107, respectively, for a new run-through, or whether it is discharged via an outlet line 112 and is disposed of properly. In addition or in the alternative, the cleaning solution can also be pumped out of the recirculation container 107 via the pump 108, an outlet valve 113 and an outlet line 114. Fresh water can optionally be used to rinse again after ending the cleaning process.

(25) FIGS. 2 and 3 show a preferred form of a cleaning and/or rinsing agent molded article 1 (as mentioned here of a cleaning agent molded article 1) in each case in a perspective obliquely from the front in FIG. 2 and obliquely from the rear in FIG. 3.

(26) This cleaning agent molded article 1 is formed as roller, namely comprising a cylinder portion 8 comprising a cylinder jacket surface, which forms the roll surface 2. This cylinder jacket surface or roll surface 2, respectively, connects two end faces 3, 4 of the cylinder portion 8. An end face portion 5, which is designed in a dome-shaped manner, in the present case in a hemispherical manner, and which is pressed in one piece with the cylinder portion to form the roller or cleaning agent molded article 1, respectively, is located on an end face 3.

(27) A small circumferential ledge-like edge is located on the relevant end face 3 so as to rotate about the end face portion 5 here, i.e. the diameter of the end face portion 5, which adjoins the cylinder portion 8, is smaller than the diameter d of the cylinder portion 8. This ledge has production-related reasons, because it is thus reliably avoided that a bead or the like, which protrudes outwards beyond the cylinder jacket surface 2, is created, which could prevent the roller from smoothly rolling along the roll surface 2 or cylinder jacket surface 2, respectively. On principle, however, a completely smooth transition could also be present between the cylinder portion 8 and the end face portion 5.

(28) The opposite end face 4 is formed so as to be flat here. However, a chamfer 9, which also serves here to allow for a rolling on the roll surface 2 or cylinder jacket surface, respectively, as smoothly as possible, is located at the transition to the cylinder jacket surface 2, so that the roller also rolls off evenly around its longitudinal axis A or axis of rotation A, respectively.

(29) From the flat end face 4, two grooves 7 extend radially opposite one another parallel to the longitudinal axis A, i.e. along the longitudinal direction of the roll surface 2. The length a of the grooves 7 parallel to the longitudinal axis A is approximately two-thirds of the length l.sub.Z of the cylinder portion 8 and approximately half of the total length l.sub.G of the cleaning agent molded article 1 in the direction of the longitudinal axis A.

(30) The entire cleaning agent molded article 1 is dimensioned so that it includes the matching dosage for an individual cleaning process of the cooking appliance 100. To that extent, the dimensioning also depends on the recipe. In the case of the below-mentioned sample recipes, the diameter d is preferably at least 15 mm, preferably at least 25 mm. Maximally, it is preferably 40 mm and particularly preferably maximally 30 mm. The total length l.sub.G is preferably at least 45 mm, particularly preferably at least 40 mm. Maximally, the total length l.sub.G is 60 mm and particularly preferably maximally 50 mm. The length l.sub.Z of the cylinder portion 8 is preferably between 60 and 80% of the total length l.sub.G. The length a of the grooves 7 is preferably at least half of the total length l.sub.G, it can also extend completely through the cleaning agent molded article 1, however. It is likewise possible that the cleaning agent molded article has more than two grooves 7 of this type.

(31) The width b of the grooves 7 is preferably at least 1 mm, preferably at least 1.5 mm. Maximally, it is preferably 4 mm and particularly preferably maximally 2.5 mm. The depth t of the grooves 7 is preferably at least 3 mm, preferably at least 5 mm. Maximally, it is preferably 12 mm ad particularly preferably maximally 10 mm.

(32) A method for the production of the cleaning agent molded article 1 with such grooves will be described later by means of FIGS. 10 to 15.

(33) FIGS. 4 and 5 show a second, simpler variation of a cleaning agent molded article 1′ according to the invention, in each case from the same perspectives as FIGS. 2 and 3 for the first variation of the cleaning agent molded article 1.

(34) This cleaning agent molded article 1′ essentially differs from the first variation in that the chamfer 9 at the transition between the flat end face 4 and the roll surface 2 or cylinder jacket surface, respectively, of the cylinder portion 8 was forgone here and in that grooves 7 were also not introduced.

(35) FIG. 6 shows a third exemplary embodiment in a perspective view. Here, the cleaning agent molded article 1″ in each case has dome-shaped or hemispherical end face portions 5, 6, respectively, on both end faces 3, 4.

(36) The loading of a cooking appliance for the cleaning process with such a cleaning agent molded article will now be explained by means of FIGS. 7 to 9, wherein the cleaning agent molded article 1′ according to the second variation is used here in a simplified manner as example. On principle, however, the method works in the same way with every other cleaning agent molded article 1, 1′, 1″ according to the invention.

(37) First of all, FIG. 7 shows initially, how a user, who wants to start the cleaning process of the cooking appliance 100, holds a cleaning product 10, which consists of a cleaning agent molded article 1′, which is arranged in a sealed, tube-like pouch 11, in his hands. A tear notch 12, which is followed by a predetermined breaking seam 13, is arranged on the pouch 11 on a longitudinal edge, adjacent to a narrow side, on which the tapering end face portion 5 of the cleaning agent molded article 1′ is located. By tearing open this tearing notch 12, the user can tear off the upper end of the pouch 11, as illustrated in FIG. 8, so that the side of the tube-like pouch 11, at which the end face portion 5 of the cleaning agent molded article 1′ is located or the relevant end face portion 5 already protrudes from the pouch 11, respectively, is open.

(38) As shown in FIG. 9, the user can then, without touching the cleaning agent molded article 1′, simply let the latter fall down out of the pouch 11, end face portion 5 first, or can push it out of the pouch 11, respectively. This can take place at any location just above the bottom 102 of the cooking chamber 101 of the cooking appliance 100. As already described above, the bottom 102 is formed as oblique surface, which runs from all side towards an outlet nozzle 103. If the cleaning agent molded article 1′ then impacts with the tapering end face portion 5 first, i.e. here with the hemisphere first, against the surface of the bottom 102, it automatically falls onto the roll surface 2 and then always rolls along the inclined surface downwards in the direction of the outlet nozzle 103, until it falls into the outlet nozzle 103 or is located in an outlet screen (not illustrated) arranged thereabvoe.

(39) Regardless of where the use drops the cleaning agent molded article 1′ from the pouch 11 onto the bottom 102, it is thus ensured that it always comes to rest at the same defined position, namely in or above the outlet nozzle 103, and that the same conditions for the dissolution of the cleaning agent molded article 1′ are thus always present in the cleaning process. It is thereby in particular not important that the user places the cleaning agent molded article 1′ on the bottom 102 in the vicinity of the outlet nozzle 103, which is often not possible, because the access to the outlet nozzle 103 can be quite intricate as a result of fittings in the cooking chamber 100.

(40) A preferred method and a preferred device for the production of a cleaning and/or rinsing agent molded article 1 according to FIGS. 2 and 3 will now be illustrated by means of FIGS. 10 to 15 as well as 16 to 18. The production of the other cleaning and/or rinsing agent molded articles 1, 1′, 1″ can take place in a similar way.

(41) The device is for example a tablet press in the form of a concentric tableting machine comprising a circular disk-shaped rotor 30, on which, along any circumference, a number of holes is arranged, in which a press chamber 21, a so-called die 21 of a mold 20, is arranged in each case. This means that the tableting machine includes a plurality of molds 20 of this type, which are in each case formed of the die 21, which is arranged in the rotor 30, and the lower punches 25 and upper punches 28, which are in each case assigned to the individual dies 21. The dies 21 are (except for bars 23, which will be described below and which extend into an interior 22) are formed like a simple cylinder tube comprising an outer diameter, which is dimensioned so as to match a bore in the rotor 30, in order to hold the die 21 in the rotor 30. The lower punches 25 and upper punches 28 are in each case mechanically coupled to the rotor 20, so that they can be moved a certain distance into the die 21 and can be retracted again, in order to press the press material P in the mold 20. The respective positions of the lower punches 25 and of the upper punches 28 are controlled with the help of so-called filling curves, i.e. control curves, which mechanically control the movement of the punches from station to station, while the rotor is moved forward in a direction of rotation. However, these mechanisms and the setup of the rotor 30 or of a concentric tablet press, respectively, are known to the person of skill in the art in principle, so that the rotor 30 and the components of the mold 20 are illustrated only schematically in FIGS. 10 to 15.

(42) In a first station, which is illustrated in FIG. 10, the lower punch 25 is initially pulled all the way down to the desired fill depth in the direction R.sub.1 prior to the filling with the press material P. The lower punch 25 is hereby guided inside the die 21 in a type of a nut-groove guide system. For this purpose, the die 21 has, in its interior 22, into which the press material P is filled and is pressed therein, two bars 23, which extend inward from the cylinder wall of the die 21 radially opposite one another and which run in the longitudinal direction of the die 21 (see FIG. 14). These bars 23 start here at a lower edge of the die 21, which is oriented towards the lower punch 25, and extend upward across approx. three-fourths of the total length of the die 21. Matching to these bars, two grooves 27 are introduced into the lower punch 25 (see FIG. 17). The lower punch 25 is guided in the interior 22 of the die 21 by means of these grooves 28 and the bars 23, so as to be capable of being displaced upward and downward.

(43) Except for the grooves 27, this lower punch 25 is in principle formed like a round rod. On its upper end, however, it has a protrusion, in which a punch shape 26 is arranged on the inner side, which corresponds to the form of the flat end face 4 of the cleaning agent molded article 1, which is to be pressed, comprising the chamfer 9. This punch shape 26 is thus a relatively flat cavity comprising an outer edge, which tapers conically to the inside.

(44) On the first station illustrated in FIG. 10, the mold 20 is open on the top, i.e. the upper punch 28 is moved completely to the top. On its lower end, this upper punch has a punch shape 29 in the form of a hemisphere curved to the inside (see FIG. 18). This part of the upper punch 28 serves to mold the dome-shaped or hemispherical end face portion 5, respectively, of the cleaning agent and/or rinsing agent molded article 1.

(45) In a subsequent station, the press material P is then filled into the die 21 by means of a supply unit 31, which is only illustrated schematically in FIG. 11 as end portion of a supply tube. At the next station (see FIG. 12), the upper punch 28 is subsequently inserted into the die 21 from the top along the direction R.sub.2, so that the die 21 is closed on the top.

(46) Finally, the lower punch 25 is pushed upwards along the direction R.sub.3 in a subsequent step, as it is shown in FIG. 13, whereby the press material P is pressed into the desired form in the mold 20. It is important to note thereby that the fill of the press material P and the tableting speed is set so that the air, which initially remained inside the dome-shaped punch shape 29 of the upper punch 29, is pushed out, i.e. the punch shape 29 is ventilated in a suitable manner.

(47) After the pressing, the upper punch 28 can then be moved back to the top into the initial position in the direction R.sub.4, as it is illustrated in FIG. 14, and the lower punch 25 is moved further to the top in the direction R.sub.3, until the finished cleaning agent and/or rinsing agent molded article 1 is located outside the die 21.

(48) At a further station, the cleaning agent and/or rinsing agent molded article 1 is then wiped off sideways from the rotor 30 in a suitable direction R.sub.5 and is further conveyed to a packaging machine. The wiper mechanism 32 or device, respectively, for removing the finished cleaning agent and/or rinsing agent molded article 1, is illustrated only roughly schematically again in FIG. 15 by means of a block.

(49) The position illustrated in FIG. 10, in which the lower punch 25 has moved back into the initial position according to the desired fill level in the direction R.sub.1, can be approached again subsequently, and a further cleaning agent and/or rinsing agent molded article 1 can be pressed in this mold 20. Due to the fact that a plurality of such molds 20 is located along the rotor 30, a plurality of cleaning agent and/or rinsing agent molded articles can accordingly be produced in parallel in the corresponding clocking.

(50) For the production of a cleaning agent molded article, for example the following recipes can be used:

(51) TABLE-US-00001 TABLE 1 recipe examples for a cleaning agent molded article Components Cleaning agent molded article (% by weight) Recipe 1 Recipe 2 Recipe 3 Recipe 4 Alkaline system Caustic soda 40 65 20 Metasilicate 20 5 5 55 Soda 17 10 25 13 Complexing agent Phosphate 17 20 Citrate 37 MGDA 6 PESA 3 Gluconate 8 Phosphonate 1 0.5 1 Polymer 1.3 1 2 2 Surfactants Fatty alcohol ethoxylate 2 1 Glucoside 0.5 Builders Sulphate 5.7 5 Excipients PEG 2 3 2.5 Stearate 0.5 0.2 0.1 Cellulose 1.5 Pyrogenic silica 0.2 0.3 0.2 0.5 Total 100 100 100 100

(52) The powdery cleaning agent prepared according to this recipe is then pressed as press material as described above into a cleaning agent molded article. For recipe 1, the average grain size lies in the range of 500 μm and 1000 μm, wherein more than 95% of the particles have a particle size in the range of 200 μm to 1600 μm. For recipe 2, an average grain size in the range of 500 μm and 1000 μm is selected, wherein more than 90% of the particles have a particle size in the range of 200 μm to 1600 μm. For recipes 3 and 4, an average grain size in the range of 200 μm and 500 μm is selected, wherein more than 75% of the particles have a particle size in the range of 200 μm to 1600 μm.

(53) In the case of these sample recipes, the cleaning agent molded article can preferably have the following dimensions:

(54) diameter d: approx. 28 mm

(55) length l.sub.Z of the cylinder portion: approx. 35 mm

(56) total length l.sub.G: approx. 45 mm

(57) length a of the grooves: approx. 25 mm

(58) width b of the grooves: approx. 2 mm

(59) depth t of the grooves: approx. 8 mm

(60) The total quantity of the cleaning agent is then approx. 35 g.

(61) TABLE-US-00002 TABLE 2 recipe examples for a rinsing agent molded article Components rinsing agent molded article (% by weight) Recipe 1 Recipe 2 Acid system Citric acid 40 45 Malic acid 40 Adipic acid 10 Complexing agent Polymer 1.5 Surfactants Fatty alcohol ethoxylate 2 0.5 Builders Sulphate 50 Excipients PEG 7 3 Pyrogenic silica 1 Total 100 100

(62) The powdery rinsing agent prepared according to this recipe is then pressed as pressed material into a rinsing agent molded article. For recipe 1, the average grain size lies in the range of 200 μm and 500 μm in this case, wherein more than 50% of the particles have a particle size in the range of 200 μm to 1600 μm. For recipe 2, an average grain size in the range of 200 μm and 500 μm is selected, wherein more than 75% of the particles have a particle size in the range of 200 μm to 1600 μm.

(63) In summary, it is pointed out once again that the cleaning and/or rinsing agent molded articles, cleaning products as well as methods and devices described above in detail, are only exemplary embodiments, which can be modified in a variety of ways by the person of skill in the art, without leaving the scope of the invention. It would in particular be possible to guide the lateral bars in the die all the way to the top, provided that the mechanism of the tableting machine is designed so that the upper punch can be guided sufficiently exactly. In this case, the grooves in the cleaning and/or rinsing agent molded article would then run accordingly to the upper edge. A similar method for pressing can be used as well, as it is illustrated above, in order to introduce dome-shaped or similar end face portions on both end faces, i.e. on the bottom and on the top. Only the punch shape of the lower punch tool needs to then be formed accordingly. The lower punch tool could then additionally include a type of ejection piston, which additionally pushes the completely pressed cleaning and/or rinsing agent molded article to the top, so that the latter can be displaced sideways, without the end face portion being sheared off. It would likewise also be possible to only provide one such end face portion on the bottom in the mold on the cleaning and/or rinsing agent molded article and to design the upper punch so that a flat end face is created on this side. This can have advantages for the ventilation, but does in turn require an additional ejection piston in the lower punch or other additional effort for removing the cleaning and/or rinsing agent molded article from the press. The use of the indefinite article “one” furthermore does not rule out that the relevant features can also be present several times. The term “unit” likewise does not rule out that the latter also consists of a plurality of sub-units, which may be spatially separated.

REFERENCE LIST

(64) 1, 1′, 1″ cleaning and/or rinsing agent molded article 2 roll surface/cylinder jacket surface 3 end face 4 end face 5 end face portion 7 groove 8 cylinder portion 9 chamber 10 cleaning product 11 pouch 12 tear notch 13 predetermined breaking seam 20 mold 21 press chamber/die 22 interior 23 bar 25 lower punch 26 punch shape 27 grooves 28 upper punch 29 punch shape 30 rotor 31 supply unit 32 wiper mechanism 100 cooking appliance 101 cooking chamber 102 bottom 103 outlet nozzle 104 inlet openings/nozzles 105 line system 106 trace heating 107 recirculation container/storage tank 108 pump 109 fresh water supply 110 pump 111 outlet valve 112 outlet line 113 outlet valve 114 outlet line A longitudinal axis/axis of rotation a length of the groove b width of the groove 7 d diameter l.sub.G total length l.sub.Z length of the cylinder portion P press material R.sub.1, R.sub.2, R.sub.3, R.sub.4, R.sub.5 direction t depth of the groove 7