The dyes and pigments that can be used on plastics mainly include the following categories:

Organic pigments: Organic pigments are currently the most widely used plastic pigments, suitable for various plastic materials due to their good solubility and bright colors. Common organic pigments include carbon black, azo pigments, phthalocyanine pigments, quinolone pigments, etc.
Inorganic pigments: Inorganic pigments are easy to produce and have low costs, as well as excellent heat resistance and chemical stability. Common inorganic pigments include titanium dioxide (titanium dioxide), iron oxide, zinc oxide, etc. These pigments are widely used in both thermoplastic and thermosetting plastics.
Polymer pigments: Polymer pigments can quickly transfer color to plastic materials and will not change color or fade during use. Although its content in plastic is relatively low, it needs to be used in conjunction with other color aids.
Metal complex solvent dyes: Metal dyes have good color stability and are not easily affected by ultraviolet radiation and chemical treatment. They are usually used for plastic products that require high aesthetics and durability

Specific application examples:

Red pigments: Common red pigments include pigment red 122, pigment red 48 series, etc

Yellow pigments: such as Pigment Yellow 83, Pigment Yellow 180, etc

Blue pigments: such as pigment blue 15:3 and its variants pigment blue 15:1, pigment blue 15:3, etc

Orange pigments: such as Pigment Orange 34, Pigment Orange 64, etc