The main production steps of Masterbatch involve multiple links. The following is a detailed description of these steps:
First, material selection is the first and most important step in Masterbatch production. According to the color and performance requirements of the finished product, the appropriate substrate and color powder are selected. The selection of the substrate should fully consider factors such as its plasticizing ability, antioxidant and stability, while the color powder is required to have bright color, strong dyeing power and good heat resistance^[1]^.
Next is the pretreatment step. Although this part is not explicitly mentioned in the question, it usually includes cleaning, drying and screening of the substrate and color powder to ensure their quality and purity.
This is followed by the mixing stage, where the substrate and color powder are mixed in a certain proportion. This process requires strict control of the mixing ratio and mixing time to ensure that the color powder can be evenly dispersed in the substrate^[1]^.
Heating is one of the core links in Masterbatch production. Under high temperature, the mixed substrate and color powder are heated and melted, and then dispersed and mixed. This process helps the color powder better integrate into the substrate to form a uniform mixture^[1]^.
Cooling is the next step, which aims to solidify the molten mixture into a granular material. The cooling process requires controlling the cooling rate and temperature to ensure the quality and shape of the Masterbatch^[1]^.
Granulation is a key step in the production of Masterbatch. Usually, the cooled mixture is granulated using equipment such as an extruder or a tablet press. This process requires controlling parameters such as the size, shape and density of the granules to meet the needs of different applications^[3]^.
Finally, packaging is the process of packaging and storing the finished Masterbatch. The packaging material should have good moisture-proof, sun-proof and anti-pollution properties to ensure that the Masterbatch maintains its quality and performance during storage and transportation^[3]^.
In addition to the above main steps, the production of Masterbatch may also involve some auxiliary steps, such as the viscosity measurement and dispersion performance measurement of the Masterbatch, which help to evaluate the quality and performance of the Masterbatch^[4]^.
In general, the production of Masterbatch is a complex and delicate process that requires strict control of the parameters and quality of each link to ensure the quality and performance of the final product.
