Introduction Of Basic Knowledge Of Color Masterbatch (Color Seed) (Part 1)

1, What is a colorant?

Color masterbatch, also known as colorants, is a new type of specialized coloring agent for polymer materials, also known as pigment preparation.

It is composed of three basic elements: pigments or dyes, carriers, and additives. It is an aggregate obtained by uniformly attaching a super constant amount of pigments or dyes to a resin, which can be called pigment concentration. Therefore, its coloring power is higher than that of the pigment itself.

Simply put, a colorant is an aggregate made by uniformly attaching a super constant amount of pigment or dye onto a resin.

2, What are the basic components of colorants?

The basic components of colorants are:

1. Pigments or dyes

Pigments are divided into organic pigments and inorganic pigments. Commonly used organic pigments include phthalocyanine red, phthalocyanine blue, phthalocyanine green, sun resistant bright red, macromolecular red, macromolecular yellow, perpetual yellow, perpetual purple, azo red, etc Common inorganic pigments include cadmium red, cadmium yellow, titanium dioxide, carbon black, iron oxide red, iron oxide yellow, etc

2. The carrier is the matrix of the color masterbatch. Special colorants generally choose the same resin as the product resin as the carrier, which has the best compatibility between the two, but at the same time, the flowability of the carrier should also be considered.

3. Dispersants promote uniform dispersion of pigments and prevent agglomeration. The melting point of dispersants should be lower than that of resins, and they should have good compatibility with resins and affinity for pigments. The most commonly used dispersants are polyethylene low molecular wax and stearic acid salt.

4. Additives such as flame retardant, brightening, antibacterial, anti-static, antioxidant, etc. are generally not included in colorants unless requested by customers.