We in the production of masterbatch would be through a series of tests, the most common tests have color, dispersion, ash content, melt index and heat resistance level, etc.

Color masterbatch color and decentralized detection:

1, color masterbatch detection: same as the carrier of the raw material (1% or 2%) in proportion to join, at 170 ℃ to 190 ℃ (depending on different raw materials) is obtained by injection under the temperature of 2.5 ㎜ thick slices, compared with plate color, light color available in contrast color measurement instrument testing, dark according to experiences under the condition of good light is compared and debugging.

2, the dispersion in the same proportion and temperature compressed into thin film, the pigment particle number was observed.

Ash and melt index of the test:

1, the ash content is said after a certain number of masterbatch make its complete combustion ash ratio.

2, melt index is at the temperature 190 ℃, under the condition of 2.16 KG per 10 min of numerical values