Abstract
Detergencies of ammonium oleyl sulfate (AmOS), sodium oleyl sulfate (NaOS) and their formulations with other types of detergent, namely, sodium stearyl sulfate (NaSS), ammonium alkyl benzene sulfonate (hard type) (AmABS) or other surface active agents were investigated. The results would contribute developing household liquid detergents for textiles.
Main results obtained are as follows :
1) Both AmOS and NaOS solution showed maximum detergency near the concentration of 0.05% at 40°C. The concentration showing this maximum detergency, however, shifted to the higher concentration at 20°C.
2) The detergency of NaSS solution was relatively high at 40°C, but it decreased remarkably at 20°C, and 20-50% addition of NaOS to the NaSS increased detergency at 20°C. The reasons of this increase may be attributed to the solubility of NaSS.
3) The detergency of AmABS was improved by adding 20% or more of AmOS.
4) The detergency of a mixture of AmOS and AmABS (7 : 3) was improved by formulating polyoxyethylene nonionic surface active agents.
