Environment-friendly water-based gloss oil for package printing and preparation method of environment-friendly water-based gloss oil

By combining components such as acrylate copolymer emulsion and waterborne polyurethane dispersion, and optimizing film-forming aids and nanomaterials, the performance deficiencies of waterborne varnishes have been solved, resulting in a high-gloss, wear-resistant, fast-drying, and environmentally friendly waterborne varnish suitable for a variety of packaging and printing substrates.

CN122037692APending Publication Date: 2026-05-15XIAN UNIV OF TECH
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Patent Information

Application Number
CN202610505018.X
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-04-16
Publication Date
2026-05-15

AI Technical Summary

Technical Problem

Existing water-based varnishes are inadequate in terms of gloss, abrasion resistance, drying speed, adhesion, and water resistance, making it difficult to meet the visual and usage requirements of high-end packaging, and they also do not comply with environmental regulations.

Method used

By using components such as acrylate copolymer emulsion, waterborne polyurethane dispersion, modified nanocellulose and inorganic nanoparticle composite, and by optimizing the film-forming aids and nanomaterial system, a fully waterborne varnish is formed, and specific process steps are combined to improve performance.

Benefits of technology

It achieves a balanced improvement in gloss, abrasion resistance, adhesion and water resistance, accelerates drying speed, has low VOC content, is suitable for high-speed printing equipment, meets environmental protection requirements, and is suitable for a variety of substrates.

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Abstract

The invention discloses environment-friendly water-based gloss oil for packaging and printing and a preparation method of the environment-friendly water-based gloss oil, and relates to the technical field of packaging and printing. The coating comprises the following components: 30-50 parts of an acrylate copolymer emulsion, 10-20 parts of a waterborne polyurethane dispersion, 3-8 parts of modified nano cellulose, 2-7 parts of an inorganic nanoparticle compound, 3-8 parts of a coalescing agent, 2-5 parts of a leveling wetting agent, 0.5-2 parts of a defoaming agent, 2-6 parts of a cross-linking agent, 3-8 parts of a wax emulsion, 0.5-2 parts of a pH regulator and 15-35 parts of deionized water. The acrylate copolymer and the waterborne polyurethane are compounded, and the modified nano cellulose and the inorganic nano particle compound are combined, so that the glossiness, the wear resistance, the adhesive force and the water resistance are improved in a balanced manner, and the performance is close to or even superior to that of the traditional solvent type gloss oil; the evaporation resistance of water is remarkably reduced, the drying time is shortened to be within 20 seconds, the water-based ink is suitable for high-speed printing equipment, and the production efficiency is improved.
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