Waterborne solid predispersed pigment and preparation process thereof
A preparation process and pre-dispersion technology, applied in the direction of inorganic pigment treatment, organic dyes, fibrous fillers, etc., can solve the problems of wide particle distribution, dark color and light, large particle pigments are not easy to disperse, etc., and achieve good dispersion effect
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Embodiment 1
[0021] Embodiment 1, the preparation technology of aqueous solid predispersed pigment comprises the following concrete steps:
[0022] A. mix
[0023] Each component in the pre-dispersed pigment raw material is proportioned according to weight percentage, and its raw material includes 60% pigment, 5% auxiliary agent, 30% resin and 5% auxiliary material proportioned according to weight percentage, and the pigment According to the color requirements, choose from organic pigments, inorganic pigment carbon black and inorganic pigment titanium dioxide in various colors, and choose one or more than one mixture. Organic pigments in various colors include yellow, orange, red, purple, blue, green, There are eight color systems of brown and black. The auxiliary agent is a mixture of N,N-dimethylpropylenediamine and dispersant NNO. The auxiliary material is sodium sulfate. The raw materials are put into a mixing tank for stirring, stirring The time is 30 minutes, the stirring speed is 8...
Embodiment 2
[0030] Example 2, as another embodiment, the raw materials for preparing the pre-dispersed pigment include 70% of pigment, 3% of auxiliary agent, 20% of resin and 7% of auxiliary material in proportion by weight.
Embodiment 3
[0031] Example 3, as another embodiment, the raw materials for preparing the pre-dispersed pigment include 80% pigment, 6% auxiliary agent, 10% resin and 4% auxiliary material in proportion by weight.
[0032] The preparation process of the invention is simple and efficient, and the prepared water-based solid pre-dispersed pigment has relatively high polarity, good wettability, dispersibility and stability, and the pigment has no dust flying and accurate measurement during transportation and use , convenient for transportation and use, and the pigment has no shelf life limit, avoiding waste, and can be widely used in environmentally friendly water-based paints, water-based inks, pesticides, compound fertilizers and seeds and other industries.
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