Production process of ink-jet printing paper

Abstract

The invention relates to the field of papermaking, and particularly provides a production process of ink-jet printing paper. The process enables the surface of calcium carbonate to be positively charged through cation modification, and adopts a mode of adding a charge control agent and a surface sizing agent into mixed pulp before the pulp is put on a net to replace a high polymer with positive charges, so that the surface of the whole paper reaches a state with positive charges, ink droplets with negative charges can be quickly and firmly combined with the positive charges of the contact points under the acting force between the charges after contacting the paper so as to improve the absorption speed and the combination firmness degree of the ink, and the phenomena of slow drying and pattern edge burrs caused by free diffusion and free flowing of ink drops on the surface of a bearing object, or easy smearing due to damp after local ink piling are avoided.

Description

technical field [0001] The invention relates to the field of papermaking, in particular to a production process for inkjet printing paper. Background technique [0002] With the continuous improvement of people's requirements for the quality, variety, diversification and individualization of printed matter, many computer-aided printing technologies have emerged, the typical representative of which is inkjet printing technology. Inkjet printing is a non-impact, dot-matrix printing technology in which ink droplets are directly ejected from small holes to a specific position on the surface of the medium to form an image. Inkjet printing technology is to typesetting directly on the computer, and output it to the industrial printer to realize the printing purpose. It does not need plate making, plate printing and other processes, which reduces the cost in this area, and is especially suitable for small batches and personalized printed matter. [0003] Since inkjet printing inks ...

AI Technical Summary

Problems solved by technology

The paper is required to have the properties of fast ink absorption but no diffusion, no penetration, no ink accumulation, and friction resistance. In order to prevent dust from clogging the nozzle, the paper also needs to have properties such as no hair shedding and no powder shedding; the ink used for inkjet printing has pure Black and other colors, more carbon black or other pigments used in various inks are modified by surface anion or ground with anionic grinding dispersant, and the particle size becomes smaller, and the surface is negatively charged and evenly dispersed in water At present, in order to meet the performance or partial performance of the above-mentioned products, manufacturers generally seal the paper by adding water-resistant sizing agents or film-forming aids in the pulp or on the surface or directly adding a coating process on the paper surface. Fiber pores, but the disadvantage of this method is that the air permeability of the paper is poor, the drying speed is slow, the ink is mostly gathered on the surface of the paper, and it is prone to friction and smearing in a humid environment, and adding a coating method will cause Significantly increase the cost of production and use; In addition, ordinary offset printing paper is used as inkjet printing paper. Patterns will have varying degrees of glitches that cannot be eradicated by other means

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