Black masterbatch is produced with carbon black. Raw carbon black is a very difficult and dirty mixture. It's dusty, light and fluffy. Unless large-scale treatment measures are adopted, it will contaminate the machines and workers and make the working environment dirty. Because of this, the foundry workers generally choose a resin carrier, that is, black masterbatch, to complete the pre dispersion of carbon black. This resin carrier is clean, free flowing and easy to use. In addition, in addition to being dirty, carbon black is also difficult to disperse. If raw carbon black is melted directly during injection molding, the coloring effect will be very poor. There is no dispersion of carbon black fringes and spots on the side of the less colored areas will be obvious. Standard injection molding machines cannot effectively disperse carbon black.

The application of thin wax is required for dispersion. The final product of the master particle with poor dispersion can be easily seen by the naked eye from the corner. In addition to the lack of aesthetic feeling, the poor dispersion of carbon black in the film significantly reduces the anti weathering performance of the black film. Fine particles with good dispersibility are the main characteristics of the fiber industry. These fibers are used in rope, yarn, carpet and other industries. Large machines produce 30000 strands of fine fibers at a speed of more than 5000 meters per minute. If the dispersion of masterbatch is too poor, the fiber will be broken, resulting in production stoppage.

Strong coverage

The two factors that determine the quality of black masterbatch are covering power, which is particularly important for masterbatch used in waste or regenerated polymer. In these cases, the role of black is to cover other colors in waste. The color ability of large particle carbon black is poor, and it is not easy to cover all other colors in the lower layer. As a result, the final product only gets the deviated color. In the melting process, the ability to correctly select the carbon black with high coloring ability to cover the existing color is the so-called covering power.

Keywords:Black masterbatch, carbon black. Raw carbon black,carbon black fringes,dispersion of carbon black, large particle carbon black

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