Ball-Shaped Lavatory Block Comprising Two Different Compositions

Abstract

The invention relates to a solid toilet block having at least a first composition and a second composition obtained by a non-concentric coextrusion step, and to a method for producing such a toilet block and to a device having such a toilet block.

Claims

1. A solid toilet block having at least a first composition and a second composition, wherein the first composition is different from the second composition and the production of the toilet block comprises a coextrusion step, wherein the first composition is in spatial contact with a portion of the side wall of the passage and the second composition is in spatial contact with another portion of the side wall, wherein the extrudate is formed by the forming step to produce a sphere and the toilet block thus has a substantially spherical geometry.

2. The solid toilet block according to claim 1, wherein the first composition has at least a first active substance and the second composition has at least a second active substance, wherein the first active substance and the second active substance differ from one another.

3. The solid toilet block according to claim 2, wherein the first active substance is a first dye and the second active substance is a second dye.

4. The solid toilet block according to claim 2, wherein the first active substance is a first fragrance and the second active substance is a second fragrance.

5. The solid toilet block according to claim 1, wherein the production of the toilet block comprises a forming step after the coextrusion step.

6. The solid toilet block according to claim 1, wherein the extrudate is cut into smaller units.

7. The solid toilet block according to claim 1, wherein the passage is substantially cylindrical.

8. The solid toilet block according to claim 1, wherein the portion of the side wall of the passage with which the first composition is in contact and the portion of the side wall of the passage with which the second composition is in contact have a substantially equal surface area.

9. A device comprising at least one toilet block according to claim 1, wherein the at least one toilet block is present in a chamber of the device, wherein the device can be attached to the edge of a toilet.

10. The device according to claim 9, wherein the device has at least two toilet blocks.

11. A method for producing a solid toilet block, comprising a coextrusion step, wherein the at least a first composition and a second composition, before exiting through a profile die, are brought together in a passage of an extrusion head such that the first composition is in spatial contact with a portion of the side wall of the passage and the second composition is in spatial contact with another portion of the side wall, and wherein the method further comprises a cutting step, wherein the extrudate is cut into smaller units by the cutting step, and wherein the method further comprises a forming step, wherein the extrudate is formed into a sphere by the forming step and the toilet block thus has a substantially spherical geometry.

12. The method according to claim 11, wherein the forming step and the cutting step take place simultaneously.

13. The device according to claim 10, wherein the device has at least three toilet blocks.

14. The device according to claim 10, wherein the device has at least four toilet blocks.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0057] The suitable toilet cleaning blocks according to the invention are explained with reference to the accompanying drawings. In the drawings, in detail:

[0058] FIG. 1 shows concentric coextrusion from the prior art;

[0059] FIG. 2 shows non-concentric coextrusion according to the invention;

[0060] FIG. 3 shows a device for non-concentric coextrusion according to the invention;

[0061] FIG. 4 shows a toilet block according to the invention; and

[0062] FIG. 5 shows another toilet block according to the invention.

LIST OF REFERENCE SIGNS

[0063] 105 extruder head [0064] 110 passage of the extruder head [0065] 110a side wall of the extruder head [0066] 121 first composition [0067] 122 second composition [0068] 205 extruder head [0069] 210 passage of the extruder head [0070] 210a part of the side wall of the extruder head [0071] 220b part of the side wall of the extruder head [0072] 221 first composition [0073] 222 second composition [0074] 300 device for producing the toilet block according to the invention [0075] 305 passage of the extruder head [0076] 310 passage of the extruder head [0077] 310a portion of the side wall of the extruder head [0078] 310b portion of the side wall of the extruder head [0079] 312 profile die [0080] 320b side wall of the extruder head [0081] 321 first composition [0082] 322 second composition [0083] 330 interface [0084] 402 toilet block obtained without a sphere-forming step [0085] 521 first composition [0086] 522 second composition [0087] 502 toilet block obtained with a sphere-forming step [0088] 521 first composition [0089] 522 second composition

DETAILED DESCRIPTION OF THE INVENTION

[0090] FIG. 1 shows an extruder head (105) having a passage (110), which head is used in a method to produce a solid toilet block according to the prior art. The extruder head provides an extrudate having at least a first composition (121) and a second composition (122). The first composition and the second composition differ from one another. The production of the toilet block comprises a coextrusion step that takes place concentrically. In concentric extrusion, the first composition is in spatial contact with the entire side wall of the passage (110a), while the second composition is not in spatial contact with the side wall of the passage.

[0091] FIG. 2 shows an extruder head (205) having a cylindrical passage (210), which head is used in a method to produce a solid toilet block according to the invention. The extruder head provides an extrudate having at least a first composition (221) and a second composition (222). The first composition and the second composition differ from one another. The production of the toilet block comprises a coextrusion step that takes place non-concentrically. In this extrusion according to the invention, the first composition is in spatial contact with a portion of the side wall of the passage (210a), while the second composition is in contact with another portion of the side wall (210b) of the cylindrical passage.

[0092] FIG. 3 shows a device (300) comprising an extruder head (305) having a passage (310), which device is used in a method to produce a solid toilet block according to the invention. The extruder head provides an extrudate having at least a first composition (321) and a second composition (322). The first composition and the second composition differ from one another. The production of the toilet block comprises a coextrusion step that takes place non-concentrically. In this extrusion according to the invention, the first composition is in spatial contact with a portion of the side wall of the passage (310a), while the second composition is in contact with another portion of the side wall (310b) of the passage. The initially separate strands are brought together in the extruder head. The coextruded strand is pressed out of the extruder head through a profile die (312). One or more cutting steps follow. According to the embodiment shown, the method is designed in such a way that the block is separated into smaller units by a plurality of cuts. The cuts can be made simultaneously or at different times.

[0093] FIG. 4 shows a toilet block (402) according to the invention which was produced by means of a coextrusion step that takes place non-concentrically. In the specific embodiment shown, the toilet block consists of two half cylinders, one half cylinder consisting of a first composition (421) and the other half cylinder consisting of a second composition (422). The toilet block shown in FIG. 4 was obtained without a subsequent sphere-forming step, i.e., the cylindrical extrudate was merely cut and thus divided into smaller pieces.

[0094] FIG. 5 shows a toilet block (502) according to the invention which was produced by means of a coextrusion step that takes place non-concentrically. In the embodiment shown, the extrudate, which consists of two half cylinders, one half cylinder consisting of a first composition (521) and the other half cylinder consisting of a second composition (522), was cut into smaller pieces and formed by means of a sphere-forming step, i.e., the cylindrical extrudate was cut and formed into a sphere. In a sphere-forming step, the two compositions are interwoven with one another on the surface in that the two compositions are blended together in the manner of streaks and therefore occupy approximately the same area of the surface of the toilet block. Such a distribution of the compositions on the surface of the block can be achieved in particular by simultaneous cutting and sphere-forming of a cylindrical (non-concentric) coextrudate. The cylindrical coextrudate is positioned between two rotating rollers that cut the elongated strand into the individual toilet blocks and simultaneously form each block into a sphere. Such methods are known from the field of the production of chocolate spheres. The manufacturer of corresponding machines, known as rolling machines, for chocolate spheres is, for example, the company Krger & Salecker Maschinenbau GmbH & Co. KG, with the ARM 0252-0601 type being particularly preferred.