Waterproof water-based ink for printing, and preparation method thereof
A water-based ink technology, applied in inks, applications, household appliances, etc., can solve problems such as water resistance and glossiness that cannot meet consumer needs, achieve good application prospects, improve film-forming effects, and enhance water resistance.
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[0050] The application also provides the preparation method of the above-mentioned printing water-based ink with waterproof effect, comprising the following steps:
[0051] (1) Add toner, dispersant, triglycidyl isocyanurate, and deionized water into a high-speed mixer, and stir for 15 to 20 minutes at a rate of 600 to 800 rpm to obtain a water-based color paste. Grinding on a three-roll machine until the particle size is less than 10 μm;
[0052] (2) adding water-soluble acrylic resin and modified polyester emulsion to the ground water-based color paste, stirring evenly to obtain an intermediate mixture;
[0053] (3) Add bisphenol A epoxy resin and defoamer to the intermediate mixture, ultrasonically disperse for 15 to 20 minutes, place in a ball mill, and grind at high speed for 30 to 40 minutes to obtain the original printing water-based ink;
[0054] (4) Add an appropriate amount of ethanol with a concentration of 95% to the original printing water-based ink, and stir at ...
Embodiment 1
[0059] Preparation of modified polyester emulsion:
[0060] Add unsaturated polyester resin, 2-ethylhexyl acrylate, and methyl 2,6-diisocyanate hexanoate into the reactor, raise the temperature of the reactor to 120°C, and stir the reaction at a rate of 500 rpm 2 Hours, then down to room temperature, then drop into the emulsifier in the reactor, after stirring at a low speed, add an appropriate amount of distilled water in the reactor, at room temperature according to the speed of 1800 rev / min high-speed stirring speed, emulsification reaction for 3 hours, obtained the improved Polyester emulsion.
[0061] The ratio of raw materials is as follows:
[0062] Water-soluble acrylic resin 35%
[0063] Modified polyester emulsion 20%
[0064] Bisphenol A type epoxy resin 6%
[0065] Triglycidyl isocyanurate 4%
[0066] Toner 3%
[0067] Dispersant 0.8%
[0068] Defoamer 0.5%
[0069] Deionized water balance.
[0070] Preparation of water-based printing ink with waterproof e...
Embodiment 2
[0076] Preparation of modified polyester emulsion:
[0077] Add unsaturated polyester resin, 2-ethylhexyl acrylate, and methyl 2,6-diisocyanate hexanoate to the reactor, raise the temperature of the reactor to 125°C, and stir the reaction at a rate of 550 rpm for 2.5 Hours, then down to room temperature, then drop into the emulsifier in the reactor, stir evenly at a low speed, add an appropriate amount of distilled water in the reactor, at room temperature according to the speed of 2000 rev / min high-speed stirring speed, emulsification reaction 3.5 hours, obtained improved Polyester emulsion.
[0078] The ratio of raw materials is as follows:
[0079] Water-soluble acrylic resin 40%
[0080] Modified polyester emulsion 25%
[0081] Bisphenol A type epoxy resin 7%
[0082] Triglycidyl isocyanurate 5%
[0083] Toner 3.5%
[0084] Dispersant 1.0%
[0085] Defoamer 1.0%
[0086] Deionized water balance.
[0087] Preparation of water-based printing ink with waterproof effe...
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