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Multicolor Chromatography and Color Printing
Printing
writing or image with different colors on one plate is called the "duo se tao
yin"(multicolor chromatography), which was started from the Song Dynasty
(960-1279) and used for making paper
money.
By the Yuan
Dynasty (1279-1368), two-color printing was used to print
books, and it further developed into three-color and four-color printing. With
the eventual arrival of large illustrated encyclopedias, pictures and
illustrations became an important part of printing.
In
the Ming
Dynasty (1368-1644), Hu Zhengyan invented the
watercolor block printing for colored illustrations. In this technique, for
every different color of the picture, a separate woodblock is made. Under the
dynasty, color printing became ever more popular and its quality kept
improving.
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