界面活性剤の構造と染料分散力の関係およびアゾピグメント分散液の熱安定性

抄録

An investigation was made to determine the effect of structure of surface active agents on their azopigment dispersion power by “Semimicro Azopigment Method”.
The dispersing powerr becomes higher with increasing carbon numbers in anionics such as sodium alkyl sulfates, sodium alkyl sulfonates, and disodium salts of α-sulfo fatty acid, and with increasing ethylene oxide moles in nonionics such as POE nonyl phenyl ethers, POE lauryl ethers and POE oleic esters.
Thermal stability of azopigment dispersion was most excellent when sodium methyl naphthalene sulfonate formalin condensate was used as a dispersing agent.