| 摘要 |
A coating liquid which comprises, dissolved and dispersed into a specific ester-based solvent, a binder polymer dissolvable into the solvent, an infrared absorbing substance, and, as required, a non-infrared shielding substance, and which is used for providing an infrared sensitive layer on the surface of a photosensitive resin; and a production method for a joint-less photosensitive resin sleeve printing plate using the coating liquid. The coating liquid can form an infrared sensitive layer, free from defects such as pin holes, onto the surface of a photosensitive resin roughened by grinder-polishing, in a flexographic plate-use photosensitive structure suitable for a plate making process of direct drawing by using an infrared laser, permits repeated uses of a squeegee rubber when a ring coater is used as an infrared sensitive coating liquid coating means, improves work environments in a coating process for providing an infrared sensitive layer, reduces the possibility of ignition/explosion and a roughness on a photosensitive resin surface roughened by grinder-polishing, and is effective in producing a joint-less, satisfactorily solid photosensitive sleeve printing plate.
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