Water-based thermosetting glass printing ink and preparation method thereof

Abstract

The invention discloses a water-based thermosetting glass printing ink and a preparation method thereof. The ink is composed of a water-based resin solution, a crosslinking agent, a dispersing agent BYK-191, an assistant, water and a pigment. The preparation method comprises the following steps: mixing part of the water-based resin solution with the dispersing agent BYK-191, assistant and pigment, and carrying out shear dispersion to obtain a slurry with the particle size of not greater than 20 micrometers; and adding the rest of water-based resin solution, assistant, crosslinking agent and water into the slurry, and sufficiently stirring. The preparation method is simple and cheap in raw materials; and the prepared water-based thermosetting glass printing ink has the characteristics of low cost, environment friendliness, favorable adhesive force with the glass substrate, favorable alcohol resistance, favorable water resistance, favorable abrasion resistance, high hardness and the like.

Description

technical field [0001] The invention relates to a water-based thermosetting glass printing ink and a preparation method thereof, belonging to the field of glass printing inks. Background technique [0002] With the increase in the production and application of glass screen printing ink products, the organic solvents (VOC) in the ink pollute the environment, poison the human body, and pose safety hazards caused by flammability and explosion. Water-soluble glass screen printing ink is a substitute for similar solvent-based inks. Because water is used as a diluent, the product has the characteristics of non-flammable, non-explosive, low-toxicity, less environmental pollution, and low product cost. It is environmentally friendly and resource-saving. Ink products. The key technology of water-based ink is to make the ink water-based. In the prior art, the main film-forming polymer is water-based modified, mainly to add a sufficient amount of hydrophilic carboxyl groups in the pol...

AI Technical Summary

Problems solved by technology

The key technology of water-based ink is to make the ink water-based. In the prior art, the main film-forming polymer is water-based modification, mainly to add a sufficient amount of hydrophilic carboxyl groups in the polymer, but the content of carboxyl groups is too much It will affect the performance of the paint film, its solvent resistance, alkali resistance and water resistance are not good, and the carboxyl-containing monomer has a high glass transition temperature, resulting in a brittle paint film and poor adhesion

Therefore, the water-based ink in the prior art is affected by the water-based film-forming resin, and the application is limited

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