| 摘要 |
PROBLEM TO BE SOLVED: To prevent deterioration of image quality in the case of providing an image protective layer by specifying relationship between a dry film thickness of an image forming layer and a mean particle size of fine particles, lowering a bonding force of the forming layer to a support by exposure of high density energy light, and removing the forming layer of an emitted part. SOLUTION: An image forming layer obtained by dispersing metal powder color material for absorbing a wavelength light of an exposure light source and fine particles except the color material in a resin binder is formed on a support. Relationship between dry film thickness L of the forming layer and a mean particle size (r) of the particles is set to r<2L. A bonding force of the forming layer of an emitted part to the support by exposure of the light is lowered, then the forming layer of the emitted part is removed to form an image. In the case of laminating a protective layer on a color material layer in which the material is dispersed in a resin binder, d1 /d2 of a ratio of thicknesses of the dry film thickness d1 of the material layer to that d2 of the dry film of the protective film is suitably set to a range of 1 to 100. |
