Composition for the protection of glassware in a dishwashing process
View Patent ↗The present invention provides a composition. The composition comprises zinc and bismuth. The composition is for use in the protection of glassware in an automatic dishwashing process.
1. A method for protecting glassware in an automatic dishwashing process comprising providing a composition comprising zinc and bismuth into a dishwasher and washing the glassware in the presence of said composition, wherein the mass ratio of zinc to bismuth in the composition is 1:100 to 100:1, wherein the amount of zinc and bismuth provided to a dishwasher cycle is from 1 to 1000 mg.
2. The method according to claim 1 wherein the ratio of zinc to bismuth in the composition (by mass) is from 1:10 to 10:1.
3. The method according to claim 1 wherein the amount of zinc and bismuth provided to a dishwasher cycle is from 5 to 500 mg.
4. The method according to claim 1 wherein the composition comprises a soluble ceramic/glass formulation.
5. The method according to claim 1 wherein the composition comprises a detergent formulation.
6. The method according to claim 1 wherein the zinc or bismuth are in metallic form.
7. The method according to claim 6 wherein the metallic form is an alloy of zinc and bismuth.
8. The method according to claim 1 wherein the zinc and/or bismuth are present as a salt or compound.
9. The method according to claim 8 salt or compound is a nitrate, oxide, sulphate, phosphate, halide, carbonate or carboxylate salt.