According to Dr. Ezra Iraqi, the pioneer of the detergent industry in Iran, until around 1930, only soap was used as a cleaner and detergent, which was the result of neutralizing fatty acids with alkali and mainly sodium and potassium salts. But with the introduction of surfactant or surface active agents or syndet in the field of chemistry and chemical industry in the time between the two world wars, an important change occurred in the detergent industry.