Pigment Analysis of post-processing

Pigmented or pigment known as the commercialization process. Original paint through a variety of processing, making it suitable for some special media (such as synthetic resin paints) in the commercialization process. At present, the more commonly used methods for particulate after-treatment surface treatment, granulation, coating, squeeze the water, increasing the crystallinity degree. Pigment after post-treatment, it becomes loose powder, easy-flowing slurry thick or thin paste, pigment suspensions, concentrated masterbatch, color film, such as different forms of commercial pigment, its purity, dispersion, light, heat, floating, non-flying properties, than the pre-processing significantly improved, more convenient to use. Suitable for different uses are different commercial pigment formulations (Table [Pigment main formulations]).plasticizer
Pigment paste commercialization method, paint chips, and other major forms masterbatch production methods are: ① a sand mill, a pigment and an anionic surfactant or a nonionic surfactant in water or an organic solvent mixed with sand grinding to <2μm, then add thickeners, preservatives, antifreeze, last.Mix paste. ② mixing method, pigments and cellulose esters, plasticizers, stabilizers, resins, etc., after mixing, in a heated kneading machine for melting and kneading until a homogeneous, then pulled into a sheet, after cooling to grinding mill into the paint film. ③ extrusion method, a pigment and the low molecular weight polyethylene (molecular weight about 1000) are mixed and added to the extruder through the twin-screw melt mixing device, from the extruder, cooling and pelletizing, that is made of color masterbatch.
Commercialization commercialization pigments pigment application is easy to use, dispersion, high efficiency, no blur, floating color, material saving, tinting strength advantages. White paint on the market according to user requirements color, just add a small amount of paste, stir and serve (the color can also be used to automatically control the computer in order to increase production, reduce chromatic aberration). In white or colorless, transparent plastic pellets by adding a small amount of masterbatch mixing can be directly injection molded products colorless spot, stain, color uniformity. Plasticizers paste (by the dioctyl phthalate and pigments made by sanding) colored PVC, dispersing rapidly, bright color.flame retardant
Pigment promote the product commercialization process refinement, has become pigment production, application of the main development direction.