Dissolvable toilet brush formulations with desiccant and dye system to indicate cleaning
A dissolvable unit dose toilet cleaning composition for use with a wand. The unit dose contains surfactant, an organic acid, an organic acid buffering agent, and a dye system including a desiccant, a water-soluble dye, and optionally a colorant. The composition is compressed into a tablet or puck wherein at least 30% dissolves in 10 minutes when submerged in toilet water. Upon exposing a surface of the unit dose composition to water in the toilet, the water-soluble dye colors the water in the toilet. Pressing the wetted surface of the unit dose composition to a surface of the toilet, the water-soluble dye colors the surface of the toilet.
1. A dissolvable solid unit dose toilet cleaning composition comprising:
an anionic surfactant;
a carbonate or bicarbonate salt;
an organic acid;
a dye system comprising a desiccant and a water-soluble dye; and
virgin soap pellets comprising at least one monovalent salt of a monocarboxylic fatty acid in an amount of from 5 wt % to 50 wt %, based on the total weight of the unit dose toilet cleaning composition,
wherein at least 30% of the total weight of the unit dose toilet cleaning composition dissolves when submerged in water for 10 minutes.
2. The unit dose toilet cleaning composition of claim 1 , wherein the desiccant is in an amount of from about 0.2% to about 3.0% by weight, based on the total weight of the unit dose toilet cleaning composition.
3. The unit dose toilet cleaning composition of claim 1 , wherein the water-soluble dye is in an amount of from about 0.005% to about 0.1% by weight, based on the total weight of the unit dose toilet cleaning composition.
4. The unit dose toilet cleaning composition of claim 1 , wherein the dye system further comprises a colorant.
5. The unit dose toilet cleaning composition of claim 4 , wherein the colorant is a lake pigment.
6. The unit dose toilet cleaning composition of claim 4 , wherein the colorant is in an amount of from 0.0001% to about 0.1% by weight, based on the total weight of the unit dose toilet cleaning composition.
7. The unit dose toilet cleaning composition of claim 1 , wherein the unit dose toilet cleaning composition is a compressed solid, defines an indentation in at least one of its surfaces, and the indentation is adapted to receive and engage a wand.
8. A unit dose toilet cleaning composition comprising:
an anionic surfactant;
a carbonate or bicarbonate salt;
an organic acid;
about 0.2% to about 3.0% calcium silicate;
a water-soluble dye; and
virgin soap pellets comprising at least one monovalent salt of a monocarboxylic fatty acid in an amount of from 5 wt % to 50 wt %, based on the total weight of the unit dose toilet cleaning composition.
9. The unit dose toilet cleaning composition of claim 8 , wherein the calcium silicate is in an amount of from about 0.5% to about 1.0% by weight, based on the total weight of the unit dose toilet cleaning composition.
10. The unit dose toilet cleaning composition of claim 8 , wherein the water-soluble dye comprises a colorant.
11. The unit dose toilet cleaning composition of claim 8 , wherein the anionic surfactant is an alpha olefin sulphonate.
12. A method of visually indicating application of a toilet cleaning composition to a toilet, the method comprising:
providing a unit dose toilet cleaning composition comprising:
an anionic surfactant;
a carbonate or bicarbonate salt;
an organic acid;
a dye system comprising a desiccant and a water-soluble dye; and
virgin soap pellets comprising at least one monovalent salt of a monocarboxylic fatty acid in an amount of from 5 wt % to 50 wt %, based on the total weight of the unit dose toilet cleaning composition,
wherein at least 30% of the total weight of the unit dose toilet cleaning composition dissolves within 10 minutes when submerged in toilet water; and
exposing a surface of the unit dose toilet cleaning composition to water in the toilet, wherein the water-soluble dye colors the water in the toilet.
13. The method of claim 12 , further comprising pressing the wetted surface of the unit dose toilet cleaning composition to a surface of the toilet, wherein the water-soluble dye colors the surface of the toilet.
14. The method of claim 12 , wherein the step of exposing comprises submerging the unit dose toilet cleaning composition in the water in the toilet.
15. The method of claim 12 , wherein the desiccant is in an amount of from about 0.2% to about 3.0% by weight, based on the total weight of the unit dose toilet cleaning composition.
16. The method of claim 12 , wherein the unit dose toilet cleaning composition is free from color of the water-soluble dye upon storage at room temperature.
17. The unit dose toilet cleaning composition of claim 1 , wherein the virgin soap pellets further comprises at least one of:
a water soluble polyhydric organic solvent;
a sugar alcohol;
an organic salt;
an inorganic salt;
a chelating agent; or
a stabilizer.
18. The unit dose toilet cleaning composition of claim 1 , wherein the virgin soap pellets comprise fatty acids in an amount of from about 0.5% to 5% by weight, based on the total weight of the virgin soap pellets.
19. The unit dose toilet cleaning composition of claim 8 , wherein the virgin soap pellets further comprise at least one of:
a water soluble polyhydric organic solvent;
a sugar alcohol;
an organic salt;
an inorganic salt;
a chelating agent; or
a stabilizer.
20. The unit dose toilet cleaning composition of claim 8 , wherein the virgin soap pellets comprise fatty acids in an amount of from about 0.5% to 5% by weight, based on the total weight of the virgin soap pellets.