| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a printing ink of an infiltrating and drying type, which allows the reproduction of a color range wider than a conventional color-reproduction range of RGB expressed by four-color-process printing of yellow, rouge, indigo and black. <P>SOLUTION: The offset ink composition uses a yellow ink having opacity of providing a L* value of≥31 when overprinting the yellow ink within a range of 0.85-0.95 density on a black ink having 1.10-1.20 density value, in the offset printing using two or three of a yellow ink, a rouge ink and an indigo ink, and a black ink. <P>COPYRIGHT: (C)2009,JPO&INPIT</p> |
