Patent ID: 7503333

Claim:
A method of washing a surface, said method comprising the steps of: A. providing a cleaning formulation comprising a surfactant composition comprising; (i) a first surfactant having the general formula, R 1 —O-(A) m H wherein R 1 is an aliphatic hydrocarbon having from 8 to 11 carbon atoms, A is an alkyleneoxy group having from 2 to 5 carbon atoms, and m is a positive number, (ii) a second surfactant having the general formula, R 2 —O-(B) n H wherein R 2 is an aliphatic hydrocarbon having from 12 to 14 carbon atoms, B is an alkyleneoxy group having from 2 to 5 carbon atoms, and n is a positive number, and (iii) a polyalkylene glycol present in an amount of from 3 to 20 parts by weight per 100 parts by weight of the cleaning formulation; B. providing a rinse formulation; C. applying the cleaning formulation to the surface; and D. applying the rinse formulation to the surface.