摘要 |
PROBLEM TO BE SOLVED: To provide a blanket for offset printing of improved durability at the time of high speed printing by an offset rotary printing machine. SOLUTION: A substrate layer 30 having a compressive layer 32 composed of a porous elastic material and a surface printed layer 20 laminated on the substrate layer 30 are included inside a blanket 10 for offset printing, and a storage elastic modulus E' of the compressive layer 32 when the dynamic stress (10 Hz, 23 deg.C, amplitude of 50μm initial stress of 2 mm elongation and distance between chucks of 20 mm) is applied to the compressive layer 32 is in the range of 6×10<7> -21.5×10<7> dyn/cm<2> ).
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