caa a22 4500 465797237 CHVBK 20180323112041.0 cr unu---uuuuu 170327e19901101xx s 000 0 eng 10.1007/BF02540479 doi (NATIONALLICENCE)springer-10.1007/BF02540479 The effect of polar soil components on the phase inversion temperature and optimum detergency conditions [Elektronische Daten] [Kirk Raney, Herbert Benson] Previously reported results have shown that optimum removal of a hydrocarbon soil from polyester/cotton fabric occurs above the cloud point at the phase inversion temperature (PIT) of nonionic surfactant/water/soil systems. Through comparison of phase behavior measurements to radiotracer detergency studies using model sebum soils, i.e., cetane/oleyl alcohol and cetane/oleic acid blends, the relevance of the PIT for removal of nonpolar/polar soil mixtures has also been demonstrated. For these soils, the PIT is typically below the cloud point, and the highest level of soil removal is found between the PIT and cloud point rather than only at the PIT. This relatively temperature-insensitive soil removal is attributed to the preferential solubilization of polar soil components which continually changes the composition of the residual soil during the washing cycle. These findings explain the long-observed results that 4- to 5-EO alcohol ethoxylates are preferred for the removal of nonpolar soils while 6- to 9-EO ethoxylates are the more effective surfactants for sebum soils. AOCS Press, 1990 Detergency nationallicence inversion nationallicence optimum nationallicence phase nationallicence polar nationallicence soil nationallicence temperature nationallicence Raney Kirk Westhollow Research Center, Shell Development Company, P.O. Box 1380, 77001, Houston, Texas aut Benson Herbert Westhollow Research Center, Shell Development Company, P.O. Box 1380, 77001, Houston, Texas aut Journal of the American Oil Chemists' Society Springer-Verlag 67/11(1990-11-01), 722-729 0003-021X 67:11<722 1990 67 11746 https://doi.org/10.1007/BF02540479 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF02540479 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Raney Kirk Westhollow Research Center, Shell Development Company, P.O. Box 1380, 77001, Houston, Texas aut NATIONALLICENCE 700 1- Benson Herbert Westhollow Research Center, Shell Development Company, P.O. Box 1380, 77001, Houston, Texas aut NATIONALLICENCE 773 0- Journal of the American Oil Chemists' Society Springer-Verlag 67/11(1990-11-01), 722-729 0003-021X 67:11<722 1990 67 11746 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer