Research on the Whiteness of Eye-Protection Wrapping Paper

Whiteness of wrapping paper is the main affecting factor of printed matter color rendition, the higher the whiteness, the better the results of color rendition. But the result of pursuiting high whiteness is that human eyes are harmed by the photic stimulation of paper-based printed matter. To solve the mentioned above problem, this paper preliminary researches the correlation between paper whiteness and asthenopia, the correlation between printing quality and paper whiteness, for finding out appropriate whiteness that can meet the eyes comfort and have better printing quality. Results show the asthenopia occurs easier as whiteness of wrapping paper increases. Besides, the paper samples with the whiteness values as 89.4% and 96.2% have the better printing quality, and the samples with the whiteness values as 84.6% have the worse printing quality relatively, but the quality gap is not big. Results show the whiteness of samples is between 84.6% and 89.4%, human eyes dont feel asthenopia and the printing quality is better. The research results can provide the theoretical basis for printing and packaging enterprises to choose paper which are suitable for printing packing and have eye-protection function, and contribute to the human eye protection.