| abstract |
PROBLEM TO BE SOLVED: To provide a photosensitive composition having good storage stability, capable of writing an image with a laser beam in a near-infrared region and requiring no heat treatment before developing a latent image. To provide. In addition, a computer-to-plate (CTP) plate that can directly make a plate from a digital signal from a computer or the like, can use a conventional developing device, and can directly use a conventional printing device in printing. To do. A photosensitive composition containing an aqueous resin having a blocked isocyanate group and an infrared absorber. A printing plate precursor comprising a support and a photosensitive layer comprising the photosensitive composition. An image forming method in which an image is formed on the photosensitive layer of the printing plate precursor using a laser beam, and then developed using a basic aqueous solution or water. |