WC SYSTEM WITH MULTI-PHASE GEL COMPOSITION

Description

[0001] Sanitary agents in gel form are known from the prior art. Such agents are used as self-adhesive sanitary agents. These self-adhesive sanitary agents are suitable for adhering to surfaces independently, i.e. without further aids. In particular, toilet blocks which have a self-adhesive composition are known from the prior art. Such toilet blocks can be attached to the wall of the toilet bowl without a basket and adhere there independently even after several flushes. Such gels are also referred to as solid gels. For example, the document EP 1086199B1 describes a self-adhesive sanitary agent in the form of a gel which adheres independently to the surfaces of objects that are commonly used in the sanitary sector, such as toilet bowls, and is only rinsed off the toilet surface after several flushes.DE 10 2004 056554 A1, EP 1 894 989 A1, and WO 2014 / 033259 A1 also describe such gels that are applied to the toilet bowl wall using an applicator without a cage. This type of application is also referred to as "cageless" application.

[0002] Furthermore, non-self-adhesive gels are described in the prior art. These gels are liquid and do not adhere to the inner wall of the basket and are described in DE 197 15 872 A1 and EP 1 029 911 A1. These gels are deformable under the application of force.

[0003] In addition to gel-like cleaning agents, solid cleaning agent tablets are also known, which, when used in a basket, are called rim blocks.

[0004] EP 3 628 725 A1 and EP 3 587 545 A1 describe further sanitary means.

[0005] Overall, the rinsing behavior of the sanitary cleaning agents known from the state of the art is not yet satisfactory.

[0006] The present invention therefore provides a system comprising a toilet bowl with at least one chamber, wherein the bowl is placeable below the toilet rim and wherein a solid gel-like sanitary agent is present in the chamber of the toilet bowl, wherein the solid gel-like sanitary agent comprises at least a first composition and a second composition, wherein the sanitary agent adheres to the chamber shell; and the chamber shell is completely closed on at least one side and the agent adheres to the completely closed side of the chamber shell of the toilet bowl; and the first composition differs from the second composition, wherein the first composition is arranged in a layer on the second composition; and the closed side of the chamber shell is spherical.

[0007] The use of a second composition of the sanitary agent in a toilet bowl in the form of a solid gel enables a visually attractive, transparent product with particularly advantageous release characteristics with regard to surfactants, dyes, and especially fragrances. The self-adhesive properties of the gel allow it to adhere to the surface of the toilet bowl. This has the advantage that the gel contained in the bowl does not dissolve from the outside inward, as is the case with conventional toilet blocks, but rather has a dissolving behavior such that the amounts of gel adhering directly to the chamber wall of the toilet bowl are rinsed away last. By using second compositions, the release profile of the described agents can be flexibly adapted.

[0008] Overall, there are significant differences in the flushing behavior of the WC systems described here, comprising solid gels compared to solid toilet blocks (rim blocks), since in such rim blocks the solid toilet blocks do not adhere to the surface of the chamber but rather lie loosely in the chamber and their position changes due to the effect of force, for example during transport but especially during flushing.

[0009] It was therefore found in connection with the present invention that the findings known from the field of solid toilet blocks (cleaning agent tablets) cannot be readily transferred to the gel-like compositions described here. Furthermore, the system according to the invention, comprising a basket and a self-adhesive gel, also offers further advantages over solid toilet blocks: In particular, it was found that solid toilet blocks are worn away evenly on all sides. The case is different with the present invention, whereby the areas of the gel visible to the user on the outside, for example when using a transparent toilet basket, are only removed at the very end of their service life, thus preserving the original visual impression.

[0010] Furthermore, the system according to the invention, comprising a basket and a self-adhesive gel, offers advantages over cageless gels, which are adhered to the surface of the toilet bowl with an applicator. In particular, the use of a cage, unlike cageless applications, allows the basket containing the gel to be placed just below the toilet rim and aligned with the flush water flow, so that water is directed precisely to the area where the gel is located. This enables better flushing performance than cageless applications. Compared to such cageless approaches, the system according to the invention exhibits a completely different flushing performance.

[0011] Furthermore, the system according to the invention comprising a basket and a self-adhesive gel offers advantages over a system comprising a basket and a non-solid or non-self-adhesive gel. In particular, it has been found that with non-self-adhesive gels, these gels are visibly used up by the consumer after several flushes and thus the original visual impression is not retained. The case is different with the present invention, wherein the external areas of the gel visible to the user, for example when using a transparent toilet basket, are only detached at the very end of their service life and thus the original visual impression is retained. Since such liquid gels are freely formable and mixable, there is no possibility of providing two different compositions arranged on top of one another in layers, since the phases would mix.

[0012] If, in connection with the present application, reference is made to the total amount in % by weight, the total amount in the first composition and / or in the second composition and / or the total amount based on the entire agent is hereby deemed to be disclosed.

[0013] If the presence of individual components in the agent is described in connection with the present application, this component may be present in the first composition and / or in the second composition.

[0014] According to a preferred embodiment, the gel has a cubic phase. Solid gels typically form a cubic gel phase and thus differ from liquid gels.

[0015] According to a preferred embodiment, the system is described wherein the first composition and / or the second composition comprises at least one fragrance. Preferably, the fragrance in the first composition differs from the fragrance in the second composition in its type and / or quantity. Preferably, the second composition comprises a larger amount of fragrance than the first composition.

[0016] According to a preferred embodiment, the system is described wherein the first composition and / or the second composition comprises at least one dye. Preferably, the dye in the first composition differs from the dye in the second composition in its type and / or amount. Preferably, the second composition comprises a larger amount of dye than the first composition.

[0017] According to a preferred embodiment, the second composition comprises a larger amount of at least one of the surfactants, preferably a larger total amount of surfactants, than the first composition.

[0018] According to an alternative preferred embodiment, the second composition contains a lower amount of at least one of the surfactants, preferably a lower total amount of surfactants, than the first composition. This improves the rinsing behavior.

[0019] According to the invention, the first composition is arranged in a layered manner on top of the second composition. A phase boundary thus exists between the two compositions. The first composition is thus directly adjacent to the second composition in terms of material.

[0020] According to a preferred embodiment, the system is described wherein the first composition forms the exposed surface of the agent on the open side of the chamber shell before use of the gel, and is thus initially rinsed off upon use, while the second composition arranged in a layer underneath does not initially come into contact with the rinse water.

[0021] According to a preferred embodiment, the system is described wherein the chamber shell has the shape of a hemisphere.

[0022] According to further embodiments, the agent may also comprise further compositions, i.e. a third composition and / or a fourth composition, etc., which are preferably arranged in layers on top of one another.

[0023] According to a preferred embodiment, the system is described wherein the sanitary agent further comprises an anionic surfactant.

[0024] According to a preferred embodiment, the system is described wherein the anionic surfactant is an ether sulfate, preferably a fatty acid ethyl ether sulfate and particularly preferably a lauryl ether sulfate.

[0025] According to a preferred embodiment, the system is described wherein the anionic surfactant is present in an amount of 1 wt.% to 20 wt.%, preferably in an amount of 2 wt.% to 10 wt.%, based on the total amount of the first composition and / or the second composition and / or based on the entire agent.

[0026] According to a preferred embodiment, the system is described wherein the agent comprises a further non-ionic surfactant.

[0027] According to a preferred embodiment, the system is described wherein the further non-ionic surfactant is a fatty alcohol alkoxylate, preferably with a degree of alkoxylation of 5 to 15 EO.

[0028] According to a preferred embodiment, the system is described wherein the fatty alcohol alkoxylate has a C9 to C12 alkyl radical, and wherein the alkyl radical is preferably an unbranched alkyl radical.

[0029] According to a preferred embodiment, an agent is provided wherein the non-ionic adhesion promoter is a fatty alcohol alkoxylate which preferably has a degree of alkoxylation of 20 to 50 EO, preferably of 20 to 35.

[0030] According to a preferred embodiment, a sanitary agent is provided, wherein the agent comprises a further non-ionic surfactant. According to a preferred embodiment, an agent is provided, wherein the further non-ionic surfactant is a fatty alcohol alkoxylate, preferably with a degree of alkoxylation of 5 to 15 EO. According to a preferred embodiment, an agent is provided, wherein the fatty alcohol alkoxylate (further non-ionic surfactant) has a C9 to C12 alkyl radical, and wherein the alkyl radical is preferably an unbranched alkyl radical.

[0031] In the context of the present invention, the term "sanitary agent" is used in the sense of a "composition suitable for use as a sanitary agent." Whenever "sanitary agent" or simply "agent" is used in the context of the present invention, unless otherwise indicated, this refers to a solid gel composition.

[0032] In the context of the present invention, the term "EO" refers to alkoxy groups in general. For example, the term "20 EO" means the presence of 20 alkoxy groups, which are particularly preferably present as a block in the molecule in question and even more preferably arranged as end groups in the molecule in question. In particular, the term "EO" refers to the group containing ethoxy, propoxy, and butoxy groups, more preferably to the group containing ethoxy and propoxy groups, and particularly preferably to only ethoxy groups.

[0033] In the context of the present invention, the terms "lipophilic" and "lipophilicity" are used synonymously with the terms "hydrophobic" and "hydrophilicity".

[0034] In the context of the present invention, "making flowable" means that the composition is heated to a point at which it has reached a viscosity at which the composition is so flowable that the composition can be poured out and thus transferred into another container, in particular the chamber of a toilet bowl.

[0035] The composition may contain polyols, preferably glycerin, in an amount of 3 wt% to 35 wt%, in particular 5 to 15 wt%.

[0036] In the presence of water, the adhesion promoter causes the product to adhere to a surface, preferably forming network-like structures. These give the product the necessary dimensional stability, even when flushed down a toilet. The sanitary product is preferably self-adhesive, meaning it is capable of adhering to surfaces independently, particularly without additional aids.

[0037] The adhesion promoter can be either entirely hydrophilic, but preferably partially hydrophilic and partially hydrophobic. This means that the adhesion promoter molecules are preferably longer-chain molecules that have at least one hydrophobic residue and further comprise a hydrophilic group that interacts with a preferably polar solvent, in particular water. The adhesion promoters are preferably unbranched molecules, i.e., linear molecules. This enables the desired network formation.

[0038] Polyalkoxy groups, preferably polyethoxy, polypropoxy, or polybutoxy, or mixed polyalkoxy groups such as poly(ethoxypropoxy) groups, can be used as hydrophilic radicals. A fatty alcohol alkoxylate containing both ethoxy and propoxy groups is referred to in the context of the invention as a mixed fatty alcohol ethoxypropoxylate.

[0039] A particularly preferred hydrophilic group is a polyethoxy radical, which more preferably comprises between 15 and 55 ethoxy groups, more preferably between 20 and 3550, and particularly preferably between 22 and 28 ethoxy groups. Furthermore, polyethoxy radicals with preferably between 35 and 50 ethoxy groups have also proven useful.

[0040] Linear, i.e., unbranched, alkyl radicals are preferred as hydrophobic radicals. This promotes their suitability for network formation. Even-numbered alkyl radicals are preferred because of their better biodegradability. Alkyl radicals with at least eleven carbon atoms are particularly preferred. The number of carbon atoms is further preferably between 9 and 30, in particular between 7 and 25.

[0041] Preferred adhesion promoters are polyalkoxyalkanes, in particular a mixture of alkyl ethoxylate with 20 to 50 EO, in particular 25 EO or 40 EO, wherein the alkyl chain more preferably has C16-25 carbon atoms.

[0042] Reducing the number of alkoxy groups makes the adhesion promoter more lipophilic. This makes it possible to regulate the solubility of hydrophilic substances, such as fragrances or dyes.

[0043] As the degree of alkoxylation increases, the adhesion promoter becomes more hydrophilic, which can particularly influence the formation of a network and the ability to form a visually appealing gel and can also influence the rinsing behavior of the sanitary agent.

[0044] The type and, in particular, the length of the hydrophobic residue also influences the lipophilicity of the adhesion promoter, with longer alkyl residues in particular increasing the hydrophobicity of the adhesion promoter. Overall, by appropriately selecting the hydrophobic residue, especially a linear, i.e., unbranched, alkyl residue on the one hand, in coordination with the degree of alkoxylation, i.e., the number of alkoxy groups, a tailor-made adhesion promoter can be provided that is optimized with regard to the rinsing behavior of the sanitary product, its adhesion to surfaces, and the solubility of hydrophobic or hydrophilic additives.

[0045] The amount of adhesion promoter to be used also depends on its hydrophilicity and its network-forming capacity. This is preferably between 10 and 40 wt.%, which is particularly preferred when using polyalkoxyalkanes.

[0046] "Fatty alcohol alkoxylates" in the context of the present invention are compounds that comprise at least one hydrophobic radical and at least one hydrophilic radical, wherein the hydrophilic radical is at least one EO unit bonded to the hydrophobic radical. The hydrophobic radical is derived in particular from aliphatic, long-chain, monohydric alcohols. These can occur naturally or synthetically, with natural alcohols being preferred. The hydrophobic radical is preferably branched. The hydrophobic radical preferably has between 6 and 22 carbon atoms and can also be mono- or polyunsaturated, with fully saturated radicals being preferred.

[0047] The fatty alcohol alkoxylate preferably has a degree of alkoxylation of 10 to 50 EO, in particular of 20 to 45 EO. Alternatively, the fatty alcohol alkoxylate has a degree of alkoxylation of 5 to 15 EO.

[0048] More preferably, the gel composition comprises a first fatty alcohol alkoxylate having a degree of alkoxylation of 10 to 50 EO, in particular of 20 to 45 EO, and a second fatty alcohol alkoxylate having a degree of alkoxylation of 5 to 15 EO.

[0049] In particular, the gel composition may comprise a first fatty alcohol alkoxylate having an alkoxylation degree of 20 to 30 EO in an amount of 15 to 40 wt% (as adhesion promoter) and a second fatty alcohol alkoxylate having an alkoxylation degree of 5 to 15 EO in an amount of 2 to 20 wt% (as further non-ionic surfactant).

[0050] The fatty alcohol alkoxylate is preferably a fatty alcohol ethoxylate, wherein the fatty alcohol alkoxylate has at least one ethoxy radical, and / or a fatty alcohol propoxylate, wherein the fatty alcohol alkoxylate has at least one propoxy radical. More preferably, the fatty alcohol alkoxylate comprises exclusively ethoxy and / or propoxy groups as alkoxy groups. Even more preferably, the fatty alcohol alkoxylate comprises exclusively ethoxy groups as alkoxy groups. The alkyl radical preferably has at least 7 carbon atoms, in particular 7 to 20 carbon atoms, wherein the alkyl radical is in particular an unbranched alkyl radical.

[0051] According to a preferred embodiment, a sanitary agent is described, wherein the agent has an acidic pH, measured in a 10% solution of the agent in water, and wherein the agent further comprises a first fatty alcohol alkoxylate with an alkoxylation degree of 20 to 30 EO in an amount of 15 to 40 wt.% (as adhesion promoter) and a second fatty alcohol alkoxylate with an alkoxylation degree of 5 to 15 EO in an amount of 2 to 20 wt.% (as a further non-ionic surfactant). The agent may further comprise ionic surfactants or be free of them.

[0052] According to a further preferred embodiment, a sanitary agent is described, wherein the agent has an acidic or neutral pH, measured in a 10% solution of the agent in water, and wherein the agent further comprises a first fatty alcohol alkoxylate with a degree of alkoxylation of 20 to 30 EO in an amount of 15 to 40 wt.% (as adhesion promoter) and a second fatty alcohol alkoxylate with a degree of alkoxylation of 5 to 15 EO in an amount of 2 to 20 wt.% (as further non-ionic surfactant) and an anionic surfactant in an amount of 2 to 10 wt.%.

[0053] According to a particularly preferred embodiment, a sanitary agent is described, comprising at least one non-ionic adhesion promoter, wherein the agent has a pH of 5 to 9, preferably of 6 to 8, measured in a 10% solution of the agent in water, and wherein the agent comprises an anionic surfactant, which is preferably an ether sulfate, preferably a fatty acid ethyl ether sulfate and particularly preferably a sodium lauryl ether sulfate, and wherein the anionic surfactant is present in an amount of 1 wt.% to 20 wt.%, preferably in an amount of 2 wt.% to 10 wt.%, based on the total amount of the agent, and wherein the non-ionic adhesion promoter is a fatty alcohol alkoxylate, which preferably has a degree of alkoxylation of 20 to 50 EO, preferably of 20 to 35 and in an amount of 15 to 35 wt.-% and the agent further comprises a further non-ionic surfactant, wherein the further non-ionic surfactant is a fatty alcohol alkoxylate with a degree of alkoxylation of 5 to 15 EO and has a C9 to C12 alkyl radical and the further non-ionic surfactant is present in an amount of 2 to 12 wt.% in the composition.

[0054] The type and amount of solvent depends, among other things, on the hydrophilicity of the adhesion promoter used and can be varied accordingly. To provide the desired number of bonding sites with the adhesion promoter molecules, the solvent should be present at least 20 wt.%, preferably between 35 and 75 wt.%, of the gel composition.

[0055] The solvent is preferably a polar solvent, more preferably an aqueous solvent, and in particular water. In particular, the gel composition comprises water in an amount between 40 and 75 wt.% based on the total amount of the gel composition.

[0056] The gel composition preferably includes fragrances and / or odorants. This can improve the air quality in the room.

[0057] The gel composition preferably comprises preservatives. Such preservatives are available, for example, under the trade names Acticide B 20, Acticide MBR 1, and Acticide SR 1500. The gel composition preferably comprises one or more preservatives selected from the group consisting of isothiazolinone, phenoxyethanol, methylisothiazolinone, and benzisothiazolinone (BIT). Depending on the type of preservative, it is preferably present in the gel composition in amounts of 0.0001 to 1 wt.%.

[0058] The agent according to the invention preferably has an ointment-like, pasty and / or cream-like consistency.

[0059] In the context of the present invention, a "solid gel" is preferably understood to mean a dispersed system consisting of at least two components. The solid component forms a sponge-like, three-dimensional network whose pores are at least partially filled with a solvent.

[0060] The sanitary agents are preferably in the form of gels. Such gels preferably have a different microstructure or nanostructure than conventional sanitary agents, which, particularly in the case of toilet applications, not only results in a special visual appearance due to the transparency of the gel, but also enables a uniform release of additives such as dyes and, in particular, fragrance compositions.

[0061] According to a further aspect, the manufacture of a system is described comprising the steps: Making the second composition flowable by heating; introducing the second composition into the basket; cooling and curing the second composition; making the first composition flowable by heating; introducing the first composition into the basket on top of the second composition; cooling and curing the first composition.

[0062] In the case of the products according to the invention, it was observed that they solidify or harden quickly without the use of additional cooling. The resulting reduced energy consumption results in lower costs and enables more environmentally friendly and efficient large-scale industrial production of the sanitary products.

[0063] The front of the chamber shell preferably has no opening. This prevents a child or pet from coming into contact with an active substance present in the chamber. Furthermore, because the first side of the chamber shell has no opening, the active substance can be filled into the basket during the manufacturing process through an opening on the second side. In toilet baskets with one or more openings on the first side, the active substance would not remain in the basket during filling, but would run through it. Advantageously, a toilet basket according to the described embodiment can be filled with an active substance, whereby the substance only solidifies after filling. It is therefore not necessary for the active substance to be pre-formed into the desired geometry (e.g. a sphere) and only then introduced into the chamber.Rather, the shaping is achieved by pouring the active substance into the chamber, and the chamber geometry acts as a matrix as the active substance solidifies. In particular, the described embodiment allows the use of pasty agents as active substances, since such pasty, gel-like agents, due to their consistency and "stickiness," are difficult to preform and insert into the chamber of the basket in their final form.

[0064] Preferred embodiments and the principle according to the invention are explained below with reference to the figures: Figure 1now shows a system according to the invention. The system comprises a toilet basket 10. This has four chambers 20. A solid gel-like sanitary agent is present in the chambers 20 of the toilet basket 10. The solid gel-like sanitary agent now has a first composition 31 and a second composition 32, wherein the sanitary agent adheres to the chamber shell, wherein the chamber shell is completely closed on at least one side 24 and the agent adheres to the completely closed side 24 of the chamber shell. The first composition 31 differs from the second composition 32. In particular, the dyes and / or fragrances of the first composition 31 can differ from those of the second composition. However, the surfactant content of the first composition 31 can also differ from the surfactant content of the second composition 32, wherein differences in the type and / or amount of surfactants can be present.The chamber shell has the shape of a hemisphere, with the closed side 24 of the chamber shell being spherical and the open side 22 of the chamber shell being flat. The first composition 31 is arranged in a layered manner on the second composition 32. By having two different compositions, the flushing profile of the sanitary agent can be flexibly adapted, and in particular, the geometry of the chamber 20 can also be taken into account. Figure 2a, Figure 2b and Figure 2c illustrate the principle of the invention, with one of the chambers 20 being shown individually. As already Figure 1 As described, the chamber shell has the shape of a hemisphere, with the closed side 24 of the chamber shell being spherical and the open side 22 of the chamber shell being flat. The first composition 31 is arranged in a layered manner on the second composition 32.

[0065] At the beginning of use, the surface S1 of the first composition 31 is first rinsed with rinsing water, as indicated by the dashed arrow in Figure 2a The second composition 32, however, is not yet rinsed off.

[0066] After several rinses, the first composition 31 is completely rinsed off by the rinse water. As indicated by the dashed arrow in Figure 2b As shown, the surface S2 of the second composition 32 is now rinsed off. Due to the spherical geometry of the closed side of the chamber 20, the surface S2 is smaller than the surface S1 of the first composition. The size difference between the surfaces S1 and S2 is now in Figure 2cThis is clarified again. Therefore, a smaller amount of the second composition 32 is released per rinse cycle than was the case when rinsing off the first composition 31. This results in a different release profile for the first composition compared to the second composition 32.

[0067] The inventive agents V1 to V6 were prepared. Each agent comprises compositions Z1 and Z2, which are layered as two separate phases in a chamber of a toilet bowl, as described with reference to the figures. Furthermore, comparison compositions (not listed) were prepared for each of the inventive agents and also applied to a toilet bowl. These agents contained only the first composition Z1, thus were not biphasic.

[0068] The amounts are given in weight percent based on the total amount of each composition: V1 V2 Z1 Z2 Z1 Z2 Ceteareth-25 EO 30 30 30 30 Fatty alcohol ethoxylate: 15 15 15 15 C9 to C12 alkyl radical; 8 EO Sodium laureth sulfate 3,5 3,5 3,5 3,5 Fragrance D1 1 2 1 1 Dye F1 1 1 1 2 Preservatives <1 <1 <1 <1 Water rest rest rest rest

[0069] The agent V1 comprises a larger amount of fragrance in the second composition Z2 than in the first composition Z1. The agent V2 comprises a larger amount of dye in the second composition Z2 than in the first composition Z1. Due to the spherical geometry of the chamber, the surface area of ​​the first composition at the beginning of use of the toilet system is larger than the surface area of ​​the second composition, which is only released after several flushes. Therefore, a smaller amount of the second composition is released per flush than was the case when the first composition was rinsed off at the beginning of use of the toilet system. By using a larger amount of dye and / or fragrance in the second composition, this different rinsing behavior can be compensated for and a homogeneous release of the active ingredient can be achieved. V3 V4 Z1 Z2 Z1 Z2 Ceteareth-25 EO 30 30 30 30 Fatty alcohol ethoxylate: 15 15 10 20 C9 to C12 alkyl radical; 8 EO Sodium laureth sulfate 1 5 3,5 3,5 Fragrance D1 1 1 1 1 Dye F1 1 1 1 1 Preservatives <1 <1 <1 <1 Water rest rest rest rest

[0070] Agents V3 and V4 contain a larger amount of surfactant in the second composition Z2 than in the first composition Z1. A smaller amount of the second composition is released per flush than was the case when the first composition was flushed at the beginning of use of the toilet system. This different flushing behavior can be compensated for by using a larger amount of surfactant in the second composition. V5 V6 Z1 Z2 Z1 Z2 Ceteareth-25 EO 30 30 30 30 Fatty alcohol ethoxylate: 15 10 15 10 C9 to C12 alkyl radical; 8 EO Sodium laureth sulfate 0 3,5 0 3,5 Fragrance D1 1 0 1 1 Fragrance D2 0 1 0 0 Dye F1 1 1 1 0 Dye F2 0 0 0 1 Preservatives <1 <1 <1 <1 Water rest rest rest rest

[0071] The agents V5 and V6 contain different dyes / fragrances in the second composition Z2 than in the first composition Z1. The second composition is only rinsed off after the first composition has been rinsed off at the beginning of use of the toilet system. By using different dyes / fragrances, a color and / or fragrance change can occur and serve, for example, as an end-of-life indicator. While in solid toilet blocks (detergent tablets), such an end-of-life indication is achieved through a core-shell arrangement of the phases, the present system with a gel-like agent differs significantly in that the gel-like phases are arranged in layers.

Claims

1. A system comprising a toilet bowl (10) with at least one chamber (20), wherein the bowl can be placed below the rim of the toilet and wherein a solid gel-like sanitary means is present in the chamber (20) of the toilet bowl, characterized in that the solid gel sanitizing agent comprising at least a first composition (31) and a second composition (32), wherein the sanitizing agent adheres to the chamber shell; and the chamber shell is completely closed on at least one side (24) and the agent adheres to the completely closed side (24) of the chamber shell of the toilet bowl; and the first composition (31) differs from the second composition (32), whereby the first composition (31) is layered on the second composition (32); the closed side (24) of the chamber shell is spherical.

2. System according to claim 1, wherein the first composition (31) and / or the second composition (32) comprises at least one fragrance and / or colorant.

3. System according to the preceding claim, wherein the chamber shell has the shape of a hemisphere.

4. System according to any one of the two preceding claims, wherein the sanitizing agent further comprises an anionic surfactant.

5. System according to the preceding claim, wherein the anionic surfactant is an ether sulfate, preferably a fatty acid ethyl ether sulfate and particularly preferably a lauryl ether sulfate.

6. System according to one of the two preceding claims, wherein the anionic surfactant is present in an amount of from 1% by weight to 20% by weight, preferably in an amount of from 2% by weight to 10% by weight, based on the total amount of the first composition (31) and / or the second composition (32).

7. System according to any one of the preceding claims, wherein the agent comprises a further non-ionic surfactant.

8. System according to the preceding claim, wherein the further non-ionic surfactant is a fatty alcohol alkoxylate, preferably with a degree of alkoxylation of 5 to 15 EO.

9. System according to the preceding claim, wherein the fatty alcohol alkoxylate comprises a C9 to C12 alkyl radical, and wherein the alkyl radical is preferably an unbranched alkyl radical.

10. Manufacturing of a system according to the preceding claim, comprising the steps of, Making the second composition (32) flowable by heating; Inserting the second composition (32) into the basket (20); Cooling and hardening of the second composition (32); Making the first composition (31) flowable by heating; Insert the first composition (31) into the basket; Cooling and hardening of the first composition (31).