Ultraviolet cured offset printing ink
An offset printing ink and ultraviolet light technology, applied in the field of printing ink, can solve the problems affecting the printing quality of high-grade packaging products, difficult to adjust the ink properties, difficult to adapt to the printing process, etc., to achieve bright and sticky appearance, excellent physical performance indicators, Excellent ink properties
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Embodiment 1
[0025] Embodiment 1: 45Kg epoxy resin ink prepolymer, 2Kg 2, or 4-isopropyl thioxanthone, 3Kg p-dimethylaminobenzoic acid ethyl ester, 0.5Kg p-hydroxybenzoic acid under room temperature condition Ether and 8Kg of tripropylene glycol diacrylate are mixed evenly in a container, and then 12Kg of titanium dioxide pigment with a fineness of ≤20um and 2.5Kg of calcium carbonate with a fineness of ≤20um are added in turn, and fully stirred to make the above materials fully mixed evenly.
[0026] The difference between other embodiments and embodiment 1 is shown in the table below:
[0027] Unit: (Kg)
[0028]
[0029] The fineness of solid materials such as pigments and additives in the above embodiments is ≤20um.
[0030] After measurement, the fluidity of the UV-curable offset printing ink prepared in the above examples is: 20-35mm / room temperature, viscosity: 100-300pa.s / 30°C, drying time: 150-800s / room temperature.
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