Water-based ink composition containing interface conditioning agent as well as preparation method and application thereof

Abstract

The invention discloses a water-based ink composition containing an interface conditioning agent. The water-based ink composition is prepared from 5 to 10 weight percent of a polar component A, 8 to 15 weight percent of a non-polar component B, 40 to 50 weight percent of water-based resin or emulsion, 10 to 15 weight percent of water, 10 to 15 weight percent of a pigment, 2 to 5 weight percent ofa coalescing agent and 5 to 10 weight percent of a defoaming agent. A preparation method comprises the steps: adding part of the defoaming agent and other raw materials into a dispersing device, dispersing for 10-30 minutes at the rotating speed of 500-1500 rpm, adding the rest defoaming agent, and dispersing for 5-20 minutes at the rotating speed of 150-450 rpm. The water-based ink composition contains the interface regulator, is used for PP or PE printing, is high in tinting strength and adhesive force and good in ink wettability, can be uniformly attached to a PP or PE film and is high in adhesive force.

Description

technical field [0001] The invention relates to the field of printing materials, in particular to a water-based ink composition containing an interface regulator and a preparation method and application thereof. Background technique [0002] The ink used in traditional packaging materials is solvent-based ink, which has the advantages of bright printing color, good adhesion and good water resistance, but the solvents it uses are all aromatic compounds, which not only seriously pollute the environment, but are also carcinogenic and teratogenic substances , have caused great harm to human health and the living environment. [0003] Water-based inks are increasingly used in commercial printing and packaging printing fields such as polyethylene (PE) and polypropylene (PP) films due to their safety and environmental protection. [0004] PP and PE films are odorless, non-toxic, corrosion-resistant, rust-proof, lightweight, high-temperature resistance, aging resistance, long servi...

AI Technical Summary

Problems solved by technology

However, because there are no polar groups in the molecule, and the crystallinity is high and the surface tension is extremely low, the ink printed on the surface of PP and PE is spherical and difficult to spread in addition to the difficulty of bonding on the surface of general water-based inks. It will affect the printing accuracy and the accuracy of color reproduction, which requires surface treatment before printing and compounding

[0005] In summary, it can be seen that when printing on the surface of PP and PE films, it is difficult for the ink to wet due to its own properties, the ink cannot be evenly dispersed on the film, and the adhesion between the ink and the PP or PE substrate is small. Thus limiting the application of PP and PE films in the field of printing materials

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