Patent ID: 7964547

Claim:
A cleaner concentrate comprising: a) one or more alkalinity sources selected from the group consisting of alkanolamines, alkali metal hydroxides, alkali metal carbonates, and alkali metal silicates present in an amount of about 3.0 wt % or greater based on the total weight of the cleaner concentrate; b) disodium ethanoldiglycine present in an amount of at least about 6 wt % sufficient to permit a use of a water having a hardness number up to about 600 ppm (600 mg/L) and to maintain the concentrate in a single phase; c) from about 4 wt % to about 15 wt % a surfactant system comprising an alkyl sulfate, alcohol ethoxylate, and an alkyl amphoacetate mixture; and d) the remainder to 100 wt % of water, based on the total weight of the cleaner concentrate.