Using the color master material produced by the volumetric doser for coloring, the process is simple, easy to use, eliminate the pollution to the environment.
Plastic coloring is an indispensable part of the plastic industry and an important production link that affects the quality of plastic products. The coloring of plastic products can not only beautify the product, but also endow the plastic with multiple functions, improve certain properties of the plastic or endow it with certain characteristics. In addition, plastic coloring can also play a role in marking, repelling insects, and increasing production.
In the early days, plastic coloring mostly used dry method, paste colorant coloring and color particle coloring. The disadvantages of these coloring methods are poor dispersion and stability of pigments. The dry method coloring pigments fly a lot, pollute the environment, and the pigment dosage is not easy to control.
The color masterbatch produced and processed by the volumetric doser machine came out in the early 1950s. It was widely used in Europe and the United States in the early 1960s. In the 1970s, a multi-functional color masterbatch was successfully developed. The color masterbatch produced by the volumetric doser machine has taken a big step forward.
The color masterbatch produced by the volumetric doser machine is used for coloring, the process is simple, the use is convenient, the pollution to the environment is eliminated, and the dispersion of the pigment in the resin is promoted. The products produced by using color masterbatch have bright surface and strong light resistance. With the continuous advancement of science and technology, the technology of color masterbatch production and processing color masterbatch is also continuously improved, perfected and developed.
Microcomputer, electronic technology, automatic control, chemical technology and mechanical manufacturing technology have been applied in the production of color dosing machine, from color matching, batching, mixing and granulation to packaging and storage are all fully automated, reducing possible errors and ensuring the color concentration accuracy, avoiding color difference.
The production of color masterbatch by my country’s volumetric doser machine started relatively late. In the 1980s, only a few manufacturers in Shanghai, Beijing, Hunan and other places produced it. However, the rapid development of my country’s plastics industry, especially the development of household appliances, daily chemicals and other industries, and the improvement of people’s requirements for colored products have made color masterbatch one of the main methods of coloring, and color masterbatch has been widely used.
Most of my country’s volumetric doser equipment is imported from foreign equipment, and computer control is used from color matching to mixing and granulation to realize the automation of color masterbatch production. In addition, many domestic companies have introduced some foreign equipment, such as twin-screw extruders, most of which are used for the production of color masterbatches. Of course, some companies use domestic equipment and have successfully developed high-concentration color masterbatches.
