To improve the quality of water-based color paste, color paste manufacturers should consider the following aspects:
1. Because water-based color paste uses water as the dispersion medium, and the surface tension of water is relatively high, its construction environment temperature and humidity requirements are relatively high, and the drying time of the coating film and normal temperature drying time need to be increased, which requires further improvement of the formula technology.
2. The foaming and defoaming problems of water-based colorants are also difficult problems that must be solved.
3. The compatibility between the water-based color paste and the emulsion system used is the key to problems such as color floating and flocculation of the paint. Before using water-based colorants for color matching, be sure to do a compatibility test. It is necessary to find suitable additives that can often be used to solve the compatibility problem between the color paste and the system.
4. The problem of pigment dispersion in water-based color paste. The ability of additives to deflocculate pigment particles determines the stability of aqueous color paste dispersions.
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