Light fastness is the ability to resist fading or discoloration of colors under the influence of a
light source. There are many factors affecting the light fastness of printed products, such as the
ratio of components of the ink, the type of paper, the light source, the environment and other
technical factors of the printing process. Therefore, the light fastness and the color conversion of
each printed sheet will be different. This study is to explore the discoloration mechanism of colors
and the factors affecting the light fastness of printed sheeet.
Keywords
Light fastnessprinting inkprinting paper
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