Lamelliferous color master batch and manufacturing method thereof

Abstract

The invention relates to the field of plastic coloring, in particular to a lamelliferous color master batch for plastic coloring and a manufacturing method of the lamelliferous color master batch. The manufacturing method of the lamelliferous color master batch includes the steps that the lamelliferous color master batch is a cuboid or cube, the side length ranges from 1 mm to 10 mm, the width ranges from 1 mm to 10 mm, and the thickness ranges from 0.2 mm to 1.5 mm; the lamelliferous color master batch comprises components of, by weight percentage, 10%-90% of carriers, 0.01%-70% of a coloring agent, 0%-5% of a coupling agent, 0%-30% of a dispersing agent and 0%-70% of padding; and through a double-screw extruder, the components are molded into a flat material strip through a flat orifice die of an extruder head, cooling and granulating are conducted, and the lamelliferous color master batch is obtained finally. By means of the lamelliferous color master batch, the condensation of the color master batch in a plastic product is kept stable, and the stability of the color of the plastic product is guaranteed.

Description

technical field [0001] The invention relates to the field of plastic coloring, in particular to a flake-shaped color masterbatch for plastic coloring and a preparation method thereof. Background technique [0002] Plastic coloring methods are divided into granulation method, toner method and masterbatch method, among which the masterbatch method is the most applicable and the most widely used. [0003] The common shapes of masterbatches are ellipsoid and cylinder. The diameter of the ellipsoid is usually 2mm-4mm, and the thickness is 1mm-3mm; the length of the cylinder is 2mm-4mm, and the diameter is 1.5mm-3mm. Regardless of whether it is an ellipsoid or a cylindrical masterbatch, the surface area or volume of the particles is basically the same as the surface area or volume of the plastic particles. Because the masterbatch contains high concentration of pigments, the specific gravity of the masterbatch is generally very large, up to 1.5g / cm 3 ~2.5g / cm 3 . The specific g...

AI Technical Summary

Problems solved by technology

When the color masterbatch and plastic particles are mixed, the color masterbatch with a larger specific gravity sinks slowly, which causes a large change in the content of the color masterbatch in the plastic product, so the color of the produced plastic product is very unstable and the color difference changes Large, high scrap rate

This problem has seriously troubled the practitioners of coloring masterbatch for many years, and many manufacturers have not found a good solution

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