Detergent & Cosmetics 

Abstract: The effect of ethylene oxide (EO) chain length in lauryl alcohol ethoxylate on the oily soil detergency of the nonionic/anionic/electrolyte mixed system was stuided, and the results were explained by the view of phase inversion temperature (PlT)and oil/water interfacial tension (lFT) The results are: the optimal EO moles (for maximal detergency)show a monotonically increasing trend when plotted as a function of the ratio of nonionic to anionic concentration for a fixed level of electrolyte; the optimal EO moles also increase with increasing level of electrolytes in the system;the effect of nonionic/anionic ratio is much stronger than the effect of electrolytes on the optimal EO moles

Abstract: The type and stability and the emulsification ability of the emulsion formed by unitary, duality or ternary solutions containing alkalines, surfactants or/and polymer with crude oil are studied under the conditions of the ratios of water and oil and various stirring forces. It is disclosed that the main factors that affect the emulsification in the ASP flooding are water/oil ratio, type and concentrations of chemicals and applied force. The reasons of emulsification of produced fluid in ASP field test of Daqing oil field is also explained.Oil emulsifying and emulsion profile controlling are one of the ASP flooding mechanisms to increase the oil displacement efficiency and sweep efficiency. The laboratory physical simulation shows that the oil emulsification of ASP flooding has improved the interlayer and in situ interference, and the oil emulsification in ASP flooding is in favor of the further improvement of oil recovery.

Abstract: The stability system included three enzymes(protease,lipase and cellulase)and the multiple enzyme in laundry liquid detergent was introduced.The conditions of enzyme stability were obtained through data analysis;the enzyme performance was studied by Terg-o-tometer method.The optimal formulation of laundry liquid detergent were attained in enzyme stability system.

Abstract: Despite regulation limitations, more and more new ingredients, products and techniques for the sun care industry have been introduced. The regulatory status of currently approved UV filters and the introduction of new and improved UV filters will be reviewed.