Patent ID: 11926806
Assignee: THE PROCTER & GAMBLE COMPANY
Field: Basic materials chemistry (Chemistry)
Classification: CPC B  A  C | IPC A  B  C

Claim 0:
1. A method of cleaning soiled ware in a dishwasher, using a program comprising a cleaning cycle of length t, the method comprising the step of delivering a water-soluble pouch, to water to form a wash liquor within said dishwasher, and contacting said soiled ware with said wash liquor, the pouch comprising a phosphate-free cleaning composition wherein the cleaning composition comprises loose powder and the composition comprises bleach, metal bleach catalyst and a complexing agent selected from the group consisting of methylglycine-N,N-diacetic acid (MGDA), glutamic acid-N,N-diacetic acid (GLDA), iminodisuccinic acid (IDS), citric acid, aspartic acid —N,N-diacetic acid (ASDA), their salts and mixtures thereof and wherein:
i) at least 90% by weight of the bleach catalyst is delivered into the cleaning cycle in less than 1/10 t; and
ii) at least 50% by weight of the complexing agent is delivered into the cleaning cycle later than ½, where t is considered to be the time from the moment in which the pouch is delivered into the cleaning cycle until the time when the wash liquor is drained and t is at least 10 minutes.