What Is a Color Masterbatch?

I. What Is a Color Masterbatch?

A color masterbatch is a concentrated pigment formulation made by dispersing high levels of pigments or dyes into a polymer resin carrier. It delivers stronger tinting strength compared to raw pigments.

II. Basic Components

· Pigments/Dyes: Provide color. Organic types offer vivid hues; inorganic types provide opacity and weather resistance.

· Carrier: The same resin as the end product to ensure compatibility.

· Dispersant: Ensures even pigment distribution and prevents agglomeration.

· Additives: Optional, depending on specific needs (e.g., flame retardants, brighteners).

III. Classification & Grades

By Carrier: PE, PP, ABS, PVC, etc.
By Application: Injection molding, blow molding, spinning, etc.

Common Grades:

· High-grade: For cosmetic packaging, toys, appliance housings, ultra-thin products.

· Standard: For daily necessities, industrial containers, general packaging.

· Spinning grade: For textile fibers; requires fine particles, high heat/light resistance.

· Low-grade: For products with low color requirements (e.g., trash cans).

Special-purpose vs. Universal:

· Special-purpose: Carrier matches the product resin → best compatibility and color quality.

· Universal: Uses a single carrier (e.g., low-melting PE) for multiple resins → convenient but lower performance.

IV. Advantages

· Uniform dispersion – no color spots

· Consistent color – accurate dosing, stable results

· Pigment protection – prevents oxidation and moisture absorption

· Clean & safe – no pigment dust, operator friendly

· Efficient – quick color changes, less cleaning

· Energy-saving – coloring and processing in one step