High-grade plastic colorants are the most ideal colorants for various plastics, offering advantages such as strong tinting strength, excellent heat resistance, high lightfastness, resistance to acids and alkalis, and vibrant colors. They are widely used in the coloring of daily-use plastics, bobbin materials, industrial greases, paints and inks, masterbatches, and other materials. Some varieties are suitable for coloring and spinning of chemical fibers, polyester, nylon, acetate fibers, etc.

Application Range

High-grade plastic colorants fall under the category of oil-soluble dyes and can dissolve in organic solvents. They can be used as single colors or blended in various proportions to achieve desired shades.

Dye Application

When these dyes dissolve in molten plastic, they distribute in a molecular state. For coloring various plastics, a specific proportion can be directly added to the plastic and uniformly mixed for pre-molding or molding. The color intensity can be adjusted as needed. In transparent and clean resins, the dyes produce bright transparent shades. When used with an appropriate amount of titanium white powder and other dyes, semi-transparent or opaque shades can be achieved. The dosage can be negotiated based on requirements, with typical usage being 0.02%-0.05% for transparent shades and around 0.1% for opaque shades.

Quality Indicators

Heat resistance reaches 240°C-300°C

Lightfastness grades are 6-7 and 7-8

Migration resistance reaches grades 3-4 and 4-5

Tinting strength is 100%±3%

Moisture content <1%

Fineness passes through a 60-mesh sieve