A four-color printing process, if a larger area of the black field and how the plate more conducive to solid black field Mose?

 
  • 采用四色印刷工藝時(shí),如果有較大面積的黑色實(shí)地,怎樣制版更有利于黑色實(shí)地墨色厚實(shí)?
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