| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a printing method using a gravure ink, enabling reproduction of color reproducing region which can not be reproduced with conventional gravure inks, and capable of expressing further wider color rendering region. <P>SOLUTION: The gravure printing method of gravure ink which uses two or three of yellow ink, scarlet ink and indigo blue ink and also using India ink, is provided, wherein, when printed in color densities of yellow, scarlet and Indigo blue is within the range of 1.45-1.65, 1.62-2.02 and 1.82-2.22, respectively (set as standard color density values), each of L*a*b* value of the L*a*b* color system (JIS Z8729) is within a specific range, and each L*a*b* value of overprint of two colors of the above inks is also within a specific range. <P>COPYRIGHT: (C)2008,JPO&INPIT</p> |
