| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an optical disk which does not cause the peeling of a receiving layer in a clamp area while being used as a medium, provides a desired clear printed image, and copes with a high-resolution wide printing, since the surface layer of the receiving layer has a water-absorption and the medium has a high possibility of causing sticking of the receptive layer to a chucking mechanism in a drive when the surface layer of the receiving layer is glossy and a layer to be printed covers up to a clamp area. <P>SOLUTION: In order to prevent the surface of the receiving layer from sticking to the chucking mechanism of the drive, it is necessary to roughen the surface, but when a colored fine particle is contained in the receiving layer, a printed image on the receiving layer becomes unclear. Then, it has been found that it is effective to add acrylic beads with an average particle diameter of 1/2 or larger of the thickness of the receiving layer into the receptive layer, in order to improve the adhesiveness of the beads to a particle absorbent and a super absorbent polymer used in the receiving layer, reinforce the receiving layer, and attain a clear printed image. <P>COPYRIGHT: (C)2007,JPO&INPIT |
