Water flexible painting plate ink and preparing method thereof
A technology of flexographic printing and ink, which is applied in the field of water-based flexographic printing ink and its preparation, can solve the problems of expensive imported ink and the quality of water-based ink not up to the high-end printing of printing factories, and achieve low production cost, clear imprint, The effect of stable performance
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preparation example Construction
[0018] The preparation method of the water-based flexographic printing ink comprises the following steps: stirring 8.7-47.2% film-forming resin resin emulsion, 0.1-0.3% defoamer, and 40-50% water-based acrylic color paste evenly, and then adding 0.2-2.0 % water-based wax slurry, 2-8% isopropanol, 10-30% ethylene glycol, 0.5-1% ethanolamine, and an appropriate amount of water, stir evenly at high speed, and filter.
[0019] The defoamer is a mixture of one or more of the following substances: acetylenic diol DF-70, DF-75 defoamer, acetylenic diol SEF or 504 surfactant. The water-based wax slurry is 515A wax slurry, v-815 wax slurry, W19 wax slurry or PT60 wax slurry.
[0020] Described film-forming resin emulsion is acrylic resin emulsion, and the preparation method of this acrylic resin emulsion is: (1) first pre-emulsifies mixed monomer, part emulsifier, deionized water according to a certain proportion at room temperature and makes stable milky white Pre-emulsion; (2) Add a...
Embodiment 1
[0037] Stir 8.7% acrylic resin emulsion (film-forming resin emulsion), 50% water-based acrylic color paste, 0.3% DE-70 (defoamer), then add 1.7% 515A wax paste (water-based wax paste), 6% isopropyl Alcohol, 30% ethylene glycol, 0.70% ethanolamine, and an appropriate amount of water, stir evenly at high speed, and filter. The above percentages are all percentages by weight.
Embodiment 2
[0039] Stir 37% acrylic resin emulsion (film-forming resin emulsion), 47% water-based acrylic color paste, 0.1% DE-70 (defoamer), then add 1.7% 515A wax slurry (water-based wax slurry), 6% isopropyl Alcohol, 26% ethylene glycol, 0.70% ethanolamine, and an appropriate amount of water, stirred at high speed and evenly filtered. The above percentages are all percentages by weight.
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