Jiangyin jinmansheng Plastic Technology Co., Ltd
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  • What factors affect the quality of black masterbatch?

    1. Dispersion: Raw carbon black is a very difficult and dirty mixture. It is dusty, light, and fluffy. Unless large-scale treatment measures are adopted, it will stain machines and workers and make the working environment dirty.

    2. Rheology: If a masterbatch itself has good dispersion, but it cannot flow into the material to be molded, the production effect is not ideal. Generally speaking, the base resin used for the production of masterbatch has high rheology. In order to save costs, some masterbatch manufacturers use reusable materials, waste materials or recycled materials as resin carriers.

    3. Compatibility: If the masterbatch is produced using chips or recycled materials, it may contain contaminants or other infusible polymers. This will cause some unpredictable troubles that are difficult to restrain, and waste consumers' time and raw materials. At this time, the base resin can be used to produce high-quality masterbatch, which has good compatibility during the melting process. The masterbatch can be produced using LLDPE, LDPE, HDPE, PP, PS, SAN, PA and other materials.

    4. Stability: In today's international economy, it is necessary for international customers to have high requirements for the quality of masterbatch and the stability of raw materials. This is also the fifth factor that determines the quality of black masterbatch. One of the main manifestations of stability is the stable carbon black ratio. If the percentage of carbon black fluctuates, the amount of masterbatch that needs to be melted is not the same, and it is impossible to produce products of the same color.

    5. Covering power: This factor is especially important for color masterbatches used for waste or recycled polymers. In these cases, the role of black is to cover other colors in the waste. The coloring 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 product only gets the deviated color. In the melting process, the ability to correctly select carbon black with high coloring ability to cover the existing color is the so-called covering power.

    6. Color brightness: There are various types of carbon black on the market that can be used for the coloring of masterbatch, but various colors and prices are also very different. Large particle carbon black has a lower degree of coloration and a different background color than small particle carbon black.