| 摘要 |
An flexographic printing plate precursor for laser engraving is provided that includes, above a support, a crosslinked relief-forming layer formed by subjecting a resin composition containing a chain-polymerizable monomer (A), a crosslinking agent (B) that crosslinks in a step-growth reaction, and a crosslinkable polymer (C) having a crosslinkable group that reacts with the crosslinking agent (B) to chain polymerization and step-growth crosslinking reactions, the crosslinked relief-forming layer having a storage modulus E' (MPa) at a frequency of 100 Hz and 25°C satisfying the relationship (a) below and having a maximum tensile elongation L (%) at break at 25°C satisfying the relationship (b) below. 1 ‰¤ E¹ ‰¤ 30 30 ‰¤ L ‰¤ 300 |
