Dyeing – OneRaptix

Dyeing

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Dyeing

Definition and Function

Plastic dyeing is a process in which dye molecules are absorbed, diffused, or chemically bonded to the surface of plastic, forming a uniform and stable color layer. Temperature, time, and dye concentration are critical factors controlling the depth, uniformity, and fastness of the dye. The primary purpose is to impart desired color to plastic products, enhancing aesthetics and recognition.

Colors

Black

Red

Green

Blue

Yellow

Plastic dyeing offers a wide range of colors, commonly including black, blue, red, green, yellow, etc. By adjusting the type of dye, concentration, temperature, and dyeing duration, different color depths, transparency, and gloss can be achieved.

Example of a bead-milled + anodized colored part

Technical Properties

Color Uniformity	Adhesion	Lightfastness	Temperature Resistance	Typical Applications
Excellent (ΔE < 2.0, depending on material and process)	Medium to high, depending on dye-plastic affinity	Good, though some organic dyes may fade under prolonged UV exposure	Suitable for room temperature up to ~80°C	Electronic housings, appliance panels, plastic components, toys, decorative parts

Applicable Materials

Plastic: ABS Resin

Process Characteristics

Dye penetrates the plastic surface via absorption or diffusion;

Temperature, time, and dye concentration are key to color uniformity and depth;

Suitable for thermoplastics such as ABS, PC, PP, Nylon, etc.;

Achieves stable color and consistent appearance for batch production;

Post-dye surface finishing or coatings can enhance gloss and wear resistance.