本文对聚乙二醇衍生物的作用机理作了介绍。重点研究了聚乙二醇衍生物在显影液中增强潜影的作用,并对潜影增强的条件作了探讨;不同聚乙二醇衍生物对潜影增强效应的影响;潜影增强效应与显影液类型及pH的关系;与显影液中亚硫酸钠含量的关系;与胶片中乳剂晶体颗粒大小的关系;与显影液中浓度的关系,等等。从中得出了规律,并在实际中得到推广与应用。 This article describes the mechanism of action of polyethylene glycol derivatives. Focusing on the role of polyethylene glycol derivatives in enhancing the latent image in the developing solution, the conditions for the enhancement of the latent image are discussed. The effects of different polyethylene glycol derivatives on the enhancement effect of the latent image; the enhancement effect of the latent image and The relationship between developer type and pH, the relationship with the content of sodium sulfite in the developer, the size of the emulsion crystal particles in the film, the concentration in the developer, and the like. The law was deduced from it, and popularized and applied in practice.