Although there are many types of ABS resin, the basic requirements of the colorants used are good heat resistance and weather resistance, and strong covering power. The commonly used coloring agents are titanium dioxide, cadmium pigments, iron red, ultramarine, carbon black and other inorganic pigments, phthalocyanine pigments, quinacridone organic pigments. Because ABS contains rubber components, coloring will present uneven color. Different dyeing, different reflection, different color light.
In addition, the change of Rockwell hardness and tensile strength is negligible. In the above situation, it is clear that the influence of ultraviolet rays only remains on the surface of colored objects, which reflect or absorb ultraviolet rays, and then form an outer layer to maintain the interior. The inner part of the molding material is hardly affected by ultraviolet radiation, so the physical properties change little. In contrast, the aging degree of natural resin is significant. Generally, the greater the UV absorption capacity of pigments, the greater the inhibition of aging. Therefore, it is necessary to consider the high concentration of ABS resin to cover the resin, so as to use the resin as much as possible.