| 摘要 |
<p>A printing plate element is disclosed, comprising a substrate and a component layer containing a first material which is water-insoluble or capable of varying from being water-soluble to being water-insoluble at a prescribed temperature of not less than 60 DEG C and a second material which is water-soluble and has a melting point of 60 to 300 DEG C. A method of preparing a printing plate is also disclosed, comprising imagewise exposure of the printing plate element and removing an unexposed area of the printing plate element with aqueous solution. <IMAGE></p> |
