Environment-friendly water-based bi-component nylon screen printing ink and use method thereof

Abstract

The invention discloses environment-friendly water-based bi-component nylon screen printing ink which comprises a component A and a component B, wherein the component A comprises the following raw materials: modified water-based acrylic emulsion, modified water-based polyurethane emulsion, water-based titanium dioxide, talcum powder, a dispersing agent, a thickening thixotropic agent, alcohol, deionized water, a colorant and an assistant. The component B is prepared by high-speed stirring and dispersion of an aziridine curing agent and deionized water. The invention further provides a use method of the screen printing ink, which comprises the steps of uniformly mixing the component A and the component B, and performing screen printing, baking for curing or natural drying for curing. The printing ink has strong adhesion to leather and cloth, good water resistance and wear resistance, low possibility of fading and color change, and good recoatability, can be recoated and reprinted afterthe drying and the curing, and has good solubility to water, and a screen printing plate can be directly cleaned by the water. The screen printing ink is environment-friendly, safe, nontoxic, innocuous, incombustible, nonexplosible, and low in cost, and a production technology is simple and easy to operate.

Description

technical field [0001] The invention belongs to the technical field of inks, and in particular relates to an environment-friendly water-based two-component nylon screen printing ink and a using method thereof. Background technique [0002] Traditional solvent-based inks usually use organic solvents such as toluene, xylene, and ether as the dispersion medium. Although solvent-based inks have good adaptability to the construction environment during use, the solvent-based inks emit VOC during use. The higher the amount, the greater the harm to the environment and construction personnel. With the improvement of environmental protection requirements, the use of traditional solvent-based inks has been greatly restricted. Water-based ink is a water-based printing ink made by mixing water-based polymer emulsions, organic pigments, resins, surfactants and related additives through chemical processes and physics. Because it uses water to replace traditional inks, it accounts for 30%-...

AI Technical Summary

Problems solved by technology

[0003] The water-based inks currently used in production have defects such as poor abrasiveness, poor adhesion, unstable ink storage, shrinkage cavities, easy wrinkling, water resistance, scratch resistance, and poor color fastness. The application number is 201710426068.X It is a Chinese invention patent of "a low-temperature fast-curing water-based ink and its preparation method". It uses water-based resins, pigments, additives, fillers, water, dispersants, and metal ion crosslinking agents as raw materials, and stirs at 50-70 ° C That is, the required water-based ink is obtained. The ink has the advantages of simple preparation process, convenient construction, short curing time, environmental protection, no pollution, and no color difference, but the ink has poor wear resistance

The application number is 201610748885.2, a Chinese invention patent named "A Preparation Method of Water-Soluble Ink", which uses diatomaceous earth / antibacterial compound, styrene-acrylic emulsion, ethylene-vinyl acetate copolymer emulsion, diatomaceous earth / porous carbohydrate, Deionized water, alcohol ester-12, PE water-based wax, varnish, water-based leveling agent, water-based defoamer, and non-ionic surfactants are used as raw materials. The prepared ink has excellent antibacterial and air-purifying effects, and broadens the scope of application. The application range of the ink, but the ink has the problem of poor hiding ability

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