Multi-step post detergent treatment method
US6484734B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 14, 1999 |
| Grant date | Nov 26, 2002 |
| Priority date | — |
| Expiry date | Jul 14, 2019 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC11D2111/44
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Thus use of a post detergent step for removing aqueous residue from ware combined with a subsequent step using a potable rinse or a dilute solution of an aqueous food grade rinse aid to rinse alkaline washed ware provides significant advantages. The two step rinse method insures complete and sanitary cleaning of ware while permitting the use of different formulations in the post detergent step and the subsequent rinse step. Such process conditions permit the use of differing times and temperatures in the post detergent step and in the rinse step and permits the use of different formulations in the post detergent step and in the rinse step.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.