| 摘要 |
<p>Provided is a high-resolution laser-engravable flexographic printing plate precursor which can be engraved into fine protrudent shapes having suitability for printing. The laser-engravable flexographic printing plate precursor is characterized by comprising a support and, formed thereon, a crosslinked relief formation layer obtained by crosslinking, by chain polymerization and successive crosslinking reactions, a resin composition comprising a monomer (A) capable of chain polymerization, a crosslinking agent (B) which crosslinks through successive reactions, and a crosslinkable polymer (C) having a crosslinkable group that reacts with the crosslinking agent (B). The printing plate precursor is further characterized in that the crosslinked relief formation layer has a storage modulus E' (MPa), measured at 25ºC and a frequency of 100 Hz, that satisfies relationship (a), and further has a maximum tensile elongation at break L (%) at 25ºC that satisfies relationship (b). 1=E'=30 (a) 30=L=300 (b)</p> |
