Floor Cleaning: Most industrial floor cleaning involves hard-surface substrates. The operations include the floor cleaning of metal parts during fabrication and before plating or painting; maintenance floor cleaning of vehicles; and janitorial floor cleaning. The detergents used are usually high in builder content and contain low-foaming surfactants of high floor cleaning power. Foam is objectionable because it lowers the efficiency of most floor cleaning machines.
Dry floor cleaning became widespread in America by 1910. The exact date that it became established initially is not known. In the 1920's valet shops or press shops became common in the United States. These shops sent clothing out to be cleaned. Garments were returned to the shops for finishing or pressing. This type of service has to a great extent been replaced by shops with small dry floor cleaning plants. In the 1930's many laundries added dry floor cleaning departments, and gradually dry floor cleaning has become the predominant service. |
