CLEANING TABLET FOR DECANTERS

Abstract

The invention relates to a cleaning tablet for removing wine residues, characterised in that it comprises hydrogen carbonate, citric acid, surfactant, bleaching agent, bleach activator and complexing agent, the common mass fraction of hydrogen carbonate and citric acid in the cleaning tablet lying at 30%-70%, and the molar ratio of hydrogen carbonate to citric acid in the cleaning tablet lying between 1:1 and 4:1.

Claims

1. A cleaning tablet comprising bicarbonate, citric acid, a surfactant, a bleaching agent, a bleach activator and a further chelating agent, wherein the joint mass fraction of bicarbonate and citric acid in the cleaning tablet is 30%70%, and the molar ratio of bicarbonate to citric acid in the cleaning tablet is between 1:1 and 4:1.

2. The cleaning tablet according to claim 1, wherein the pH when the cleaning tablet is dissolved in water is between 6.5 and 8.5.

3. The cleaning tablet according to claim 1, wherein the surfactant is a low-sudsing surfactant selected from the group of anionic, nonionic and zwitterionic surfactants as well as mixtures of same.

4. The cleaning tablet according to claim 1, wherein the bleach activator and the bleaching agent are suitable for low-temperature use.

5. The cleaning tablet according to claim 1, wherein the cleaning tablet contains methylglycinediacetic acid or a salt thereof and phosphonate as the chelating agent.

6. The cleaning tablet according to claim 1, wherein the tablet is free of enzymes, polycarboxylates and/or perfumes.

7. (canceled)

8. The cleaning tablet according to claim 1, wherein the molar ratio of bicarbonate to citric acid in the cleaning tablet is between 2:1 and 3.5:1.

9. The cleaning tablet according to claim 1, wherein the molar ratio of bicarbonate to citric acid in the cleaning tablet is essentially 3:1.

10. A method for cleaning a container comprising the following steps: dissolving the cleaning tablet of claim 1 at least partially in an aqueous liquid, whereby a cleaning tablet solution is formed; and exposing at least a portion of the interior of a container to the cleaning tablet solution.

11. The method of claim 10, wherein the container is a decanter.

12. The method of claim 10, wherein the container is a wine decanter.

13. A method for cleaning a decanter comprising the following steps: placing the cleaning tablet of claim 1 into the decanter; introducing an aqueous liquid into the decanter to dissolve the cleaning tablet; and exposing the interior of the decanter to the liquid containing the cleaning tablet as it dissolves whereby a cleaning tablet solution is formed.

14. The method of claim 10, further comprising: exposing the interior of the decanter to the cleaning tablet solution for at least 1 minute.

Description

EXAMPLE

[0047] The following ingredients are pressed to form a cleaning tablet weighing 10 grams:

TABLE-US-00001 Mass Name fraction Class Calcium bicarbonate 29.0% Bicarbonate Citric acid (anhydrous) 20.0% Citric acid Methylglycinediacetic acid 20.0% Chelating agent trisodium salt Sodium percarbonate 10.0% Bleach agent Trisodium citrate (anhydrous) 8.0% Citrate Hydroxyethylidene-1,1- 1.0% Chelating agent diphosphonic acid (phosphonate) Marlox MO 154 2.0% Surfactant Polyethylene glycol 4000 5.0% Tableting aid Polyvinylpyrrolidone K15 1.0% Tablet disintegrant Tetraacetylethylenediamine 2.0% Bleach activator (TAED) 4303 Sodium carbonate 2.0% Carbonate Total 100.0%

[0048] The mass fraction of bicarbonate (amounting to approx. 61% of the mass fraction of potassium bicarbonate indicated above, calculated from the molar amount of bicarbonate and potassium bicarbonate) in this cleaning tablet is approx. 18%. With the citric acid contained in it this yields a combined mass fraction of bicarbonate and citric acid of approx. 38% in this cleaning tablet. When expressed in quantities of substance, this 10-gram cleaning tablet contains approx. 29 mmol bicarbonate and approx. 10 mmol citric acid. The molar ratio of bicarbonate to citric acid in this cleaning tablet is thus approx. 3:1.

[0049] A wine decanter (model Eve der Riedel Glas Austria, volume 1.4 L, item no. 1950/09) soiled with red wine residues was filled with tap water (temperature 40 C., water hardness: 15 dH [German degrees of water hardness]). Then the cleaning tablet was placed in the wine decanter and dissolved within 2.5 minutes with a great production of carbon dioxide bubbles in the tap water. After 20 minutes at room temperature, the wine decanter was emptied and rinsed three times with tap water (temperature: 40 C., water hardness: 15 dH). There were no longer any visible red wine residues or lime spots.