An electrically neutral composition in the form of a water-in-oil or an oil-in-water emulsion is imparted with a unipolar electrostatic charge on spraying from an aerosol spray device by incorporating into the composition a non-ionic surfactant and at least one polar or ionic or aromatic or linearly conjugated compound. The amount of the polar or ionic or aromatic or linearly conjugated compound included in the composition is about 0.01 to about 80% w/w based on the non-ionic surfactant, but is such that the theoretical conductivity of the emulsion is less than the bulk conductivity of the emulsion.
通过在组合物中加入非离子表面活性剂和至少一种极性或离子或芳香或线性共轭化合物,使油包
水或
水包油乳液形式的电中性组合物在从气溶胶喷雾装置喷出时带有单极静电荷。组合物中包含的极性或离子或芳香或线性共轭化合物的量约为非离子表面活性剂的 0.01% 至约 80% w/w,但要使乳液的理论电导率小于乳液的体积电导率。