The so-called masterbatch is an aggregate obtained by uniformly superimposing a pigment (dye) on a resin.

In order to maintain the excellent properties of the fiber, a suitable carrier material should first be the polyester itself, but the polyester is used as a carrier due to the high melting point of the polyester, low hygroscopicity, poor dispersibility of the pigment, and low adsorption amount to the colorant. limit.

In addition to the sensitivity of polyester to moisture, moisture can cause polymer degradation and change the viscosity of the melt when producing polyester masterbatch. Therefore, most polyester masterbatches are still based on other polymers.

In order to prepare high-quality polyester masterbatch, it has been taken to pulverize the polyester chip and increase its adsorption capacity by increasing its specific surface area. The polyester used as the carrier of the color masterbatch is a light slice without any additive. The lower the ash, the better, the less the gel particles, the better the degree of slicing and crushing should be selected according to the needs.