| 摘要 |
PURPOSE:To realize both high-level solid printing quality and high resolution by forming a relief layer in multilayered structure consisting of a specific top part layer and a base part layer and making the top part layer softer than base part layer. CONSTITUTION:A relief part is made of a photosensitive resin cured body of <=8mm in thickness and consists of the top part layer and base part layer which have specific thicknesses and moduli respectively. The top part layer is >=2mum thick and has a <=650kg/cm<2>, preferably, <=300kg/cm<2> modulus, the thickness of the base part layer is >=4, preferably, >=8 times as large as that of the top part layer, and the modulus is more than twice that of the top part layer. Consequently, even when a normal letterpress printer whose printing accuracy is not so good is used, a solid image of excellent quality which has superior ink thickness and is free from line thickening is obtained and high image reproducibility is obtained. |
