noun
cationic soap; invert soap; positive soap
Technical term for a type of surfactant where the active part is a cation; used in disinfectants and fabric softeners. Not ordinary soap.
逆性石鹸は殺菌作用があるため、病院でよく使われる。
Cationic soap is often used in hospitals because of its disinfectant properties.
柔
Fabric softeners often contain cationic soap.