Waterproof single-component glass printing ink and preparation method thereof

Abstract

The invention provides waterproof single-component glass printing ink. A raw material formula of the waterproof single-component glass printing ink comprises, by weight percentage, 40-60% of modified polyester, 2-10% of epoxy resin, 2-10% of amino resin, 30-40% of titanium dioxide, 0.1-1.5% of flatting agent, 0.5-2% of fumed silica, 1-10% of tackifier and 0.1-1.5% of antifoaming agent, wherein the modified polyester is organic silicone modified polyester. The epoxy resin is heat-resistant epoxy resin, and the heat-resistance temperature is 185-205 DEG C. The amino resin is etherified amino resin with a solid content of 45%. The grain size of the titanium dioxide is 100 nanometers or below. Correspondingly, the invention further provides a method for preparing the waterproof single-component glass printing ink. The prepared glass printing ink has the advantages of being good in water resistance, high in gloss and weather resistance, good in interlayer adhesion and resistant to friction.

Description

technical field [0001] The invention relates to the technical field of inks, in particular to a water-resistant one-component glass ink and a preparation method thereof. Background technique [0002] Glass inks can be divided into high-temperature inks and low-temperature inks according to different operating temperatures. High-temperature inks have better high-temperature resistance and are used in environments with higher temperatures. However, there are disadvantages of high energy consumption and high production cost in the production of high-temperature inks, which are limited in industrial applications; low-temperature inks can be divided into two-component inks and single-component inks according to different additives, two-component inks The ink needs to be added with a curing agent to have better performance, but after adding the curing agent, the unused ink cannot be recycled, resulting in waste of resources and environmental pollution; the single-component ink doe...

AI Technical Summary

Problems solved by technology

However, there are disadvantages of high energy consumption and high production cost in the production of high-temperature inks, which are limited in industrial applications; low-temperature inks can be divided into two-component inks and single-component inks according to different additives, two-component inks The ink needs to be added with a curing agent to have better performance, but after adding the curing agent, the unused ink cannot be recycled, resulting in waste of resources and environmental pollution; the single-component ink does not add a curing agent when used, When printing and using, it can be recycled and packaged for next use, which reduces the cost of use. Therefore, the development of one-component ink has become the development direction of glass ink.

[0003] In CN101092531A, the inventor used acrylic resin as an active component and water as a viscosity regulator to prepare a single-component low-temperature curing glass ink, which reduces the toxicity to the human body, but needs to be heated and cured, which will cause inconvenience to use. Relatively poor resistance to water and alcohol wipes, limiting its range of applications

[0004] In the CN101412864A patent, the inventor used epoxy polymers and acrylate polymers as modified binders, supplemented with modified acrylic resins, modified polyacrylates, etc., to prepare self-drying glass inks. The material has good adhesion, but the preparation process of the invention is complicated, and there are many kinds of base materials required, which increases the production cost

[0005] Most of the one-component glass inks used in the market currently use thermoplastic resin as the main resin, and are prepared by the principle of solvent volatilization to form a film, which has disadvantages such as poor adhesion, poor solvent resistance, and poor water resistance.

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