Effects of Paper on Color Reproduction Quality in Ink-Jet Printing

Abstract

In digital printing process, the color reproduction quality is no longer determined by printing sequence, trapping, solid density and etc., since the technique is different from traditional printing technology. In order to analyze the effects of paper on color reproduction quality in digital ink-jet printing, three kinds of commercial paper were selected and a set of experiments were carried out by using color management technique to simulate the digital proofing. The density and chromaticity of both primary color and composite color in each printed were measured. The effects of paper’s characters on shadow, mid-tone and highlight were analyzed and discussed. Finally the influence on color reproduction quality principle, including chromaticity and absorbing characteristics of paper, was revealed. The conclusion has certain significance in directive function in ink-jet printing.

Study of color reproduction in pigment digital printing

“…25 Here, R i is the output of the pattern layer, X is the input variable and X i is the learning sample corresponding to the neuron i. The summation layer has two neurons, as shown in Equation (6), where S D is the arithmetic sum of the outputs of each neuron in the pattern layer and S N is the weighted sum of the value of each neuron in the pattern layer multiplied by the target value y i . The last layer of the network is the linear output layer, which uses the linear function as the transfer function, as shown in Equation ( 7)…”

“…Research by Jiang et al. 6 demonstrated that the same chromaticity could be obtained using varied dot area coverages on different substrates, and the printing color could be determined by the synergy of the ink diffusion on the surface of the substrate and the light reflection of the ink itself. Maryam 7 pointed out that the characteristics of the substrate would affect the color presenting of printing.…”

“…In terms of the influencing factors of color presenting, Ding et al [3][4][5] studied polyester fabrics and found that moderately reducing the maximum ink limit would not have a significant effect on the printing color depth, while increasing the basic colors of inks with the fabric being pretreated may significantly expand the color gamut. Research by Jiang et al 6 demonstrated that the same chromaticity could be obtained using varied dot area coverages on different substrates, and the printing color could be determined by the synergy of the ink diffusion on the surface of the substrate and the light reflection of the ink itself. Maryam 7 pointed out that the characteristics of the substrate would affect the color presenting of printing.…”