| 摘要 |
[Problem to be Solved] A displacement prevention coating agent is provided which can prevent a displacement in lens processing, which is soluble in water and which exhibits a transparent appearance at least after being cured. [Solution] There is provided a displacement prevention coating agent with which the front and rear surfaces of a lens are coated so that when cutting processing is performed on an end surface of the lens where, for example, a water-repellent coat layer is formed as a membrane such that the end surface has a shape corresponding to a frame, a holding position of the front and rear surfaces of the lens held by a chuck device is prevented from being displaced, where the displacement prevention coating agent is formed of an aqueous solution whose main components are a hydrophilic resin, a surfactant having a perfluoro group and an emulsion and exhibits a transparent appearance at least after the formation of the membrane. Such a displacement prevention coating agent is used when the front and rear surfaces of a lens where for example, a water-repellent coating layer is formed as a membrane are chucked and held with a chuck device to which an adhesive tape is adhered, and thus when the lens is processed, a holding position held by the adhesive tape of the lens is unlikely to be displaced. |
