Water-soluble (Ultra Violet) curing ink and preparation method thereof

Abstract

The invention relates to a water-soluble (Ultra Violet) curing ink and a preparation method thereof, and belongs to the technical field of environmental protection ink. The water-soluble UV curing ink comprises the following components by mass percent: 60 to 85% of silica sol modified water-soluble urethane acrylate prepolymer, 1 to 10% of photoinitiator, 5 to 15% of pigment, 5 to 20% of solvent and 0 to 1% of assistant. The water-soluble UV curing ink is environment-friendly, nontoxic, fast in curing rate, high in stability, excellent in ageing resistance and solvent resistance, outstanding in adhesive force and wear resistance and suitable for a plurality of printing modes, meets the production requirement, and can be widely applied to the surfaces of printing materials such as paper materials, wood materials, plastics, metals and glass.

Description

technical field

[0001] The invention relates to a water-based UV curable ink and a preparation method thereof, belonging to the technical field of environmental protection inks. Background technique

[0002] Traditional solvent-based inks are mainly composed of pigments, binders, organic solvents and additives. VOC (volatile organic compounds) emissions are large and environmental pollution is serious, posing a huge threat to air quality, packaging contents and human health. Water-based ink uses water as a solvent instead of organic solvents, which significantly reduces VOC emissions, prevents air pollution, does not affect human health, and has good overall ink performance. It is especially suitable for food, beverages, medicines, children's toys, etc. that require high hygiene conditions. packaging prints. However, it has disadvantages such as poor solvent resistance, slow drying, poor gloss, and easy to cause paper shrinkage. UV curing ink is a new application in the fi...