Easy to multiple colorful coating stability problems

Color coating because of its rich colors, construction is convenient, strong three-dimensional decorative effect, low cost, disposable facilitate renovation and renewal after spraying are widely used in the decoration project. Color coating is different from the traditional architectural coatings, such as acrylic paint, the styrene acrylic coatings, etc. The coating is single phase and monochrome uniform coating products, product quality is relatively stable. Color paint mixed with multicolor multiphase particles coexist, could lead to the stability of product quality problems. 常见问题1。 Floating color paint layer. Floating color coating layer is a collection of color coating particles floating in the finished product protection glue barrel for liquid surface, inside the barrel is full of the liquid level, and has a certain thickness. This part of the particles float on the surface of protective glue solution and direct contact with air, wrapped in a protective plastic film on the surface of the particles due to evaporation and thinning, until the damage and loss, the serious influence the uniformity of coating, machinability and decorative. Colorful coating is composed of colored enamel and protecting glue solution, the stability of the suspension for two phase proportion as close as possible to equal even. If the proportion of porcelain glaze particles less than the proportion of protection rubber, porcelain glaze particles upward floating, floating forms on the particles and mutual fusion crust; Or enamel particle density is greater than the proportion of protecting glue, after a period of time, enamel particles gathered at the bottom of the container, due to the effect of gravity and dense, destroyed the shape of the particles. Therefore, the proportion of enamel and protecting glue and their differences are the main factors influencing the floating layer phenomenon. 2. Color coating bleeding and cloudy dispersion medium. Color coating dispersion medium is obvious in color particles with the same color, or dispersion medium into a turbid liquid in ivory, in serious cases, the turbid liquid appears in many tiny flakes. This kind of phenomenon is the main reason of the color gel protective film on the surface of the particles were not strong enough, is too fragile. Color particles within the pigments, fillers, additives, continually infiltrate the fragile protective film, such as the dispersion medium has color on the color of the particles, lead to cloudy. Protective film is the main reason for the weak dispersion medium non solvent concentration was not enough. 3. Flocculant dispersion medium group that block, condensed, not easily dispersed batt form colloid formation, in which all color particles package. The longer the storage time, the problem is more serious. The main cause of this phenomenon is the dispersed phase and dispersion medium ph value not appropriate, especially the high basicity of dispersing medium, causes the high molecular compound in the dispersion medium gradually condensed into big and small aggregate, some into cotton ball, some reticulate aggregate. 4. A dim color particles and luster. Most of the cellulose thickener, defoaming agent and some pigments are extinction. White particles generally have better luster, and other color luster is poorer. Reason is that white particles usually use neutral titanium dioxide as pigments and fillers. Titanium dioxide stable performance, therefore has better gloss, and some kinds of pigment has more strong alkaline or acid, it is easy to cause color particles lose luster.