Masterbatch production process

    The process of producing masterbatches can drastically change depending on the specific applications and needs of a customer. There are some steps of producing masterbatch.

a.Formula design: Select raw materials and confirm the ratio according to product requirements.

b.Weighing: Through the weighing scale, according to the composition of the product formula to equip the raw and auxiliary materials of the color masterbatch, to ensure that the various raw and auxiliary materials meet the formula requirements.

c.Material pre-mixing: according to a certain proportion of good raw materials, according to the process requirements in turn into the high-speed mixer, mixing until uniform.

d.Melt extrusion: the pre-mixed material through the extruder feeding system automatically feed into the extruder screw mixing, through the screw transport compression, heating, shearing, friction and other functions to melt and blend. All kinds of pigments and additives are evenly dispersed in the polymer matrix, and the polymer melt is extruded from the die hole of the extruder die head under the pushing action of the screw.

e.Cooling, drying, and cold cutting: pull out the polymer melt strip extruded by the die head of the extruder, and cool it into a solid plastic strip by water cooling and air cooling. The plastic strip is drawn to the grain cutter hob to cut the grain, and the plastic color masterbatch is obtained. Hot method: The melt extruded by the extruder is cut into the grain directly into the water circulation cooling and air drying to obtain the plastic masterbatch.

f.Screening: Through the vibrating screen, the plastic masterbatch that is too long or too short, or too thick or too fine and does not meet the particle size requirements are separated from the plastic masterbatch product that meets the particle size requirements.

g.Inspection: The quality of the product is tested by sampling samples, and the particle appearance, color effect, dispersion and other performance requirements of the product are inspected. In the production process, a random inspection is carried out at regular intervals, and the products that ultimately meet the quality requirements enter the next process, and the products that do not meet the requirements are adjusted or scrapped. h. Packaging and identification, storage The plastic masterbatch products are packed according to the specified weight, and the outer bag of the packaging is marked (indicating the product name, specification type, weight, production batch number, shelf life and other information), and then stored in the storage.