​Coloring and classification of masterbatch


Masterbatch is an aggregate made by evenly loading a super-normal amount of pigment into resin.

Common coloring of masterbatch

Colorant: Natural resin and colorant are mixed and granulated into colored plastic, which is then used in the molding process.

Dry powder coloring: Mix powdery colorant and natural resin evenly and then directly use it to make plastic products.

Masterbatch coloring is the most commonly used plastic coloring method today. The colorant dispersed in the carrier is simply mixed with the natural resin and then used to make plastic products.

Classification of masterbatch

The commonly used classification methods of color masterbatch are as follows:

Classified by carrier: such as PE masterbatch, PP masterbatch, ABS masterbatch, PVC masterbatch, EVA masterbatch, etc.

Classified by use: such as injection masterbatch, blow molding masterbatch, spinning masterbatch, etc. Each variety can be divided into different grades, such as:

1. Advanced injection masterbatch, used for cosmetic packaging boxes, toys, electrical appliance casings and other high-end products.

2. Ordinary injection masterbatch, used for general daily plastic products, industrial containers, etc.

3. Advanced blown film masterbatch, used for blow molding coloring of ultra-thin products.

4. Ordinary blown film masterbatch, used for blow molding coloring of general packaging bags and woven bags.

5. Spinning masterbatch is used for spinning and coloring textile fibers. The masterbatch has fine pigment particles, high concentration, strong tinting power, and good heat resistance and light resistance.

6. Low-grade masterbatch is used to manufacture low-grade products that do not have high requirements on color quality, such as trash cans, low-grade containers, etc.