Blanket for offset printing and manufacturing method therefor

A blanket for offset printing, comprising:

• a cushion layer, a support layer, and at least two surface printing layers;
• wherein each of the at least two surface printing layers comprises a silicon-based resin in which at least one of a hardness value, a fluorine content value, and a silicon oil content value is different from each other,
• the blanket for offset printing comprises a first surface printing layer on the support layer and a second surface printing layer on the first surface printing layer,
• the first surface printing layer comprises a fluorine-containing silicon-based resin and the second surface printing layer comprises a non-fluorine-containing silicon-based resin,
• the fluorine content is 1 to 15 wt % based on the total weight of the silicon-based resin of the first surface printing layer,
• the silicon-based resin comprises siloxane,
• a slip coating layer is further provided on the cushion layer,
• the support layer is provided on one surface of the cushion layer and the slip coating layer is provided on the other surface of the cushion layer,
• the slip coating layer comprises a silicon resin, a silicon oil, a siloxane having at least one end terminated with a hydrogen atom, and silica particles, and
• wherein the first surface printing layer comprises the silicon oil and the silicon-based resin, the second surface printing layer comprises the silicon-based resin, and the content of the silicon oil is 1 to 10 wt % based on the total weight of the silicon-based resin of the first surface printing layer.