Abstract
Experimental studies of the behavior of multi-drops in a drop-layer are carried out to show how to determine the stability of a drop-layer and to compare its stability with that of a single drop at a plane liquid-liquid interface. The stability of drops in a drop-layer is defined by the average time that drops can remain in the layer, and in most cases is almost independent of the volume of drops arriving at the layer. No large difference is seen between the stabilities of a single drop and of multi-drops in a layer in the absence of stabilizing agents, but the stability of drops in a layer is far less than that of a single drop in the presence of stabilizing agents. The relation between stability and concentration of stabilizing agents is similar to that between interfacial pressure and concentration in the cases of both a single drop and of multi-drops in a layer.
