Masterbatches are divided into those kinds of grades

2020-03-06 13:57:51

Masterbatch is a new type of polymer-specific colorant. It consists of three basic elements: pigment or dye, carrier and additive. It is an aggregate obtained by uniformly loading super constant pigment or dye in the resin. It can be regarded as a pigment concentrate, so its tinting power is higher than the pigment itself.

The following methods are commonly used for the classification of masterbatches:

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

Classification by use: such as injection masterbatch, blown masterbatch, spinning masterbatch, etc.

Each variety can be divided into different levels, such as:

  1. Advanced injection masterbatch: Used in cosmetic packaging boxes, toys, electrical enclosures and other advanced products.
  2. Ordinary injection color masterbatch: 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 and coloring of general packaging bags and woven bags.
  5. Spinning masterbatch: It is used for spinning and coloring of textile fibers. The color masterbatch has fine pigment particles, high concentration, strong coloring power, good heat resistance and light resistance.
  6. Low-grade masterbatch: Used to make low-grade products with low requirements on color quality, such as trash cans and low-grade containers.
  7. Dedicated masterbatch: It is a masterbatch manufactured by using the same plastic as a carrier according to the plastic variety designated by the user for the product. For example, PP masterbatch and ABS masterbatch use PP and ABS as carriers respectively.
  1. General color masterbatch: It also uses a certain resin (often a low melting point PE) as a carrier, but it can be used for the coloring of other resins other than its carrier resin. General color masterbatch is relatively simple and convenient, but there are many disadvantages. It is recommended that users choose special color masterbatch.
  2. The heat-resistant grade of special color masterbatch is generally compatible with the plastic used in the product, and it can be used safely at normal temperature. Only in the following cases will cause discoloration to varying degrees, one is that the temperature exceeds the normal range, and the other is that the downtime is too long.

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