市販弱アルカリ性洗剤の性能評価(2)

概要

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Washing efficiencies were studied for four kinds of commercial detergents; two weremainly composed of linier alkylbenzene sulfonate(LAS)and the other two mainly ofsodium salt of fatty acids. The concentration range was set to 0 -0.4% and the temperaturesto 30, 40 and 60℃. The mechanical contributions to the efficiency were compared with aTerg-O-Tometer and a Launder-O-Meter.With the concentration of the detergents, the efficiencies became high to the maximumones close to the recommended usage concentrations. Generally the efficiencies weremaintained or slightly lowered at higher concentrations. Within the temperature range,and the efficiencies showed maxima at 40℃ except B composed of sodium salt of fattyacids which showed increasing trend in the efficiency with temperature. With Terg-OTometer,the efficiencies were higher by almost 30% than those with Launder-O-Meter.
2012-03-10