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Basic knowledge of Color Masterbatch - additive (polyethylene wax)

Basic knowledge of Color Masterbatch - additive (polyethylene wax)

2022-05-11

Color masterbatch is a colored particle made by uniformly attaching super constant pigment to resin after good dispersion. Color masterbatch is usually composed of pigment, carrier resin, dispersant and other additives.

1. Dispersing wetting agent

As the name suggests, the main function of dispersing wetting agent is to accelerate the wetting of pigment particles, so as to improve the effect of dispersing pigment particles. The dispersed wetting agent becomes a part of the product system in the uniform and stable resin after the processing process, which has a certain impact on the physical properties of the whole product. Dispersants mainly include low molecular polymers, such as polyethylene wax, polypropylene wax, EVA wax, and their derivatives (such as oxidized polyethylene wax); Another type of dispersant is super dispersant, which has developed rapidly in recent years. Sainuo pe wax for color masterbatch has high molecular weight, high viscosity, Both lubricating and dispersing , the dispersion performance is equivalent to BASF A wax and Honeywell AC6A.

2. Colorant

Colorants are the main components of color masterbatch. They provide all the required colors and characteristics.

Inorganic pigments: black and white pigments represented by titanium dioxide and carbon black; Iron oxide, metal oxide mixed crystal series, ultramarine, metal sulfide, etc;

Organic pigments: azo series, phthalocyanine series, heterocyclic (fused ring) series, etc;

Organic dyes: solvent dyes, disperse dyes (part), vat dyes (part);

Effect pigments: Mica (pearlescent) pigment, copper gold powder, aluminum silver powder (slurry).

Restricted by the surface characteristics of pigments, the content of different varieties of pigments in color masterbatch is different. Generally, the mass fraction of organic pigments can reach 20% ~ 40%, while inorganic pigments are generally between 50% ~ 80%.

3. Carrier resin

The carrier resin is used as the medium to disperse the pigment and maintain a uniform and stable distribution, while ensuring that the final color masterbatch product presents the due particle state. Various polyolefin resins, polyvinyl chloride, ABS, pet, propylene ethylene copolymer elastomer and various targeted designated resins can become the carrier resin of color masterbatch.

4. Additives 

Plastic additives are essential elements for plastic processing and application. Although the amount of additives in plastic formula is insignificant, its effect on the improvement and improvement of product processing and application performance is unparalleled.

Plastic additives can generally be divided into two categories. Namely: process additives and functional additives. The main function of the former is to help the smooth implementation of the processing process and improve the smoothness of process operation. Such additives include antioxidant, lubricant, coupling agent, release agent, etc; The latter can endow or improve the specific application performance of products. Representative additives include plasticizer, light stabilizer, UV absorber, antistatic agent, flame retardant, nucleating agent, antibacterial agent, etc.

Color Masterbatch classification

(1) Classification by resin carrier: PE masterbatch, PP masterbatch, ABS masterbatch, PVC masterbatch, EVA masterbatch, etc.

(2) Classification by molding process: injection molding masterbatch, film blowing masterbatch, spinning masterbatch, blow molding masterbatch, etc.

Each variety can be divided into different grades. For example, ordinary film blowing color masterbatch is used for coloring general packaging bags and woven bags. High grade blown film color masterbatch is used for coloring coextrusion composite ultra-thin packaging film.

Qingdao Sainuo Chemical Co.,Ltd. We are manufacturer for PE wax, PP wax, OPE wax, EVA wax, PEMA, EBS,Zinc/Calcium Stearate…. Our products have passed the REACH, ROHS, PAHS, FDA testing.

Sainuo rest assured wax, welcome your inquiry!

Website:https://www.sainuowax.com

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