Water-based pigment type ink for absorbent base material spray ink printing, preparation and printing methods thereof

Abstract

The invention relates to a water-based pigment type ink for absorbent base material spray ink printing and a preparation method and a printing method thereof. The ink comprises the following components in percentage by mass: 2 to 15 percent of pigment, 0.1 to 3.0 percent of surfactant, 2 to 20 percent of water-soluble cosolvent, 0.1 to 10 percent of film-forming aid, 5 to 35 percent of polyacrylate emulsion and 1 to 12 percent of dispersing agent and deionized water. The preparation method comprises the following steps of: (1) adding the dispersing agent and partial water-soluble cosolvent into the deionized water, emulsifying, adding the pigment, dispersing, grinding and obtaining dispersion of the pigment; and (2) stirring and uniformly mixing the surfactant, the film-forming aid and the residual water-soluble cosolvent, adding water-based polyacrylate emulsion, stirring, adding the dispersion of the pigment, stirring, filtering and obtaining the ink. The ink does not produce toxic volatile matters, is high in universality, makes printing smooth and achieves high picture precision. Meanwhile, the printed picture has excellent sunshine resistance, washing resistance, friction resistance and high fastness, and is suitable for indoor and outdoor use.

Description

technical field [0001] The invention belongs to the field of water-based pigment-based ink, its preparation and printing, and in particular relates to a water-based pigment-based ink for ink-jet printing of an absorbent base material, a preparation and a printing method. Background technique [0002] At present, the inkjet printing inks used for absorbent substrates are still mainly dye-based inks, but their disadvantages are more prominent: (1) Dye-based inks are generally not versatile, that is, different types of substrates require different types of dye-based inks , such as: inkjet printing of cotton fabrics mainly uses reactive dye inks, while wool and silk fabrics need to use acid dye inks; It is easy to crystallize and precipitate, causing serious problems of poor printing fluency due to clogged nozzles during inkjet printing. Therefore, to prepare dye-based inks with stable quality, at first the dyes need to be purified, but the energy consumption of the purified dy...

AI Technical Summary

Problems solved by technology

In addition, pigment-based inks have high washing resistance, light fastness and weather resistance, as well as bright color and complete color spectrum, but the problem of insufficient rubbing fastness on absorbent substrates has not been properly resolved.

CN200710024154.4 directly adopts the color paste as the colorant, and adds adhesive and crosslinking agent in the ink to improve the rubbing fastness of the pigment particles on the fabric, but the existence of the crosslinking agent will seriously affect the storage stability of the ink