Type and use of masterbatch
The full name of the color masterbatch is also known as the color masterbatch. It is a new coloring agent for polymer materials. It consists of three basic elements: pigment or dye, carrier and additive. It is a uniform pigment or dye uniformly. The aggregate obtained by being attached to the resin can be regarded as a pigment concentrate, so that its coloring power is higher than that of the pigment itself. Color masterbatch is mainly used on plastic to achieve the desired color effect in plastic or rubber products.
There are several commonly used classification methods for color masterbatch:
Classified by carrier: such as PE masterbatch, PP masterbatch, ABS masterbatch, PVC masterbatch, EVA masterbatch, etc.
Classified by use: such as injection masterbatch, blown color masterbatch, spinning masterbatch, etc.
Each variety can be divided into different levels, such as:
1. Advanced injection color masterbatch: used in cosmetic packaging boxes, toys, electrical enclosures and other advanced products.
2. Ordinary injection color 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: It is used for blow molding coloring of general packaging bags and woven bags.
5. Low-grade color masterbatch: It is used to manufacture low-grade products that do not require high color quality, such as trash cans and low-grade containers.
6. Special color masterbatch: It is a color masterbone made of the same plastic as the carrier according to the plastic type specified by the user for the product. For example, PP color masterbatch and ABS color masterbatch respectively use PP and ABS as carriers.
7. Universal color masterbatch: A resin (often a low melting point PE) is also used as a carrier, but it can be applied to the coloration of other resins than its carrier resin. The universal color masterbatch is relatively simple and convenient, but has many disadvantages. It is recommended that the user choose a special color masterbatch. The heat resistance grade of the special color masterbatch is generally compatible with the plastic used for the product, and can be used with confidence at normal temperature. Only in the following cases will cause different degrees of discoloration, first, the temperature is beyond the normal range, first, the downtime is too long.
