Coating for color inkjet printing paper and preparation method of coating

Abstract

The invention discloses a coating for color inkjet printing paper. The coating comprises a bottom-layer coating and a surface-layer coating which are respectively prepared by selecting different raw materials and adopting different methods. Compared with the prior art, the coating disclosed by the invention has the following advantages that the bottom-layer coating and the surface-layer coating adopt different raw materials and processes, and the manufacturing process is simple; after base paper is treated, due to the synergistic effect, the ink absorbing capability is good, the structure function of the whole coating layer is optimized, and after the dye is contacted to charges at the bottom layer, the dye and the charges act rapidly to generate water-insoluble complex, so that the effect of fixing ink is achieved, the penetration and diffusion of ink are prevented; and due to the synergistic effect with the surface-layer coating, the distribution rate of images is increased, and the resolution and the color glossiness of the images are improved, so that the coating is applicable to manufacture of color-inkjet printing paper with high quality requirement.

Description

technical field [0001] The invention belongs to the technical field of ink-jet printing paper coatings, in particular to a color ink-jet printing paper coating and a preparation method thereof. Background technique [0002] Inkjet printing has the advantages of easy colorization and digital control, and is favored by users who pursue personal colors. With the increase in the number of domestic inkjet printers, the demand for high-quality coated inkjet printing paper has increased. At present, most of the color inkjet printing papers on the market in our country are mainly imported from abroad. The existing domestic production and theoretical research are relatively poor. Inkjet printing needs to be performed well on recording materials coated with an ink receiving layer. Pattern resolution and color reproduction capabilities. For water-based inkjet printing inks, a coating agent for the receiving layer with excellent water resistance and good handling ability for inks is al...

AI Technical Summary

Problems solved by technology

[0002] Inkjet printing has the advantages of easy colorization and digital control, and is favored by users who pursue personal colors. With the increase in the number of domestic inkjet printers, the demand for high-quality coated inkjet printing paper has increased. At present, most of the color inkjet printing papers on the market in our country are mainly imported from abroad. The existing domestic production and theoretical research are relatively poor. Inkjet printing needs to be performed well on recording materials coated with an ink receiving layer. Pattern Resolution and Color Reproduction Capability

For water-based inkjet printing inks, a coating agent for the receiving layer with excellent water resistance and good handling ability for inks is also required at the same time. The existing color inkjet printing paper uses nano-scale alumina as the main absorbing material , it is necessary to add more strong cationic dispersants and color fixing agents, which will reduce the pores of the coating and affect the fast absorption capacity, which makes it difficult to achieve fast drying and high image resolution; or use light calcium carbonate-silica composite The oil absorption rate of the material can reach the required standard, but the image processing ability of its coating is not specified. Therefore, a coating for color inkjet printing paper is needed, which can take into account both ink absorption ability and image processing ability Impact

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