Black color masterbatch is primarily composed of carbon black, combined with a resin carrier and a dispersing agent. Made through processes like injection molding and extrusion, it typically appears as cylindrical pellets and is suitable for a wide range of applications, including the plastics and fiber industries, injection molding, the automotive industry and so on.
During the plastics or spinning process, carbon black mixing with a natural resin in a specific ratio creates a uniform, glossy black color, effectively preventing dust contamination and color unevenness. Today we will learn about the advantages of carbon black color masterbatch and its applicable processing methods.
What are the advantages of black color masterbatch?
Black color masterbatch has many advantages. Let’s explore it together.
Excellent dispersibility
Through preliminary dispersion mixing, carbon black is uniformly distributed within the plastic matrix, minimizing color variations, black spots, or streaks to enhance visual quality.
Optimized resin carriers ensure excellent compatibility between carbon black particles and the base resin, improving dispersion rates and reducing bubble or impurity accumulation.
High blackness and hiding power
Utilizing high-concentration carbon black, the black masterbatch achieves ideal blackness at lower dosages while boosting opacity to meet demanding coloration requirements.
Strict control over carbon black particle size and distribution enables efficient coverage of color defects in raw materials, enhancing the aesthetic appeal of the final product.
Wide applicability
The carrier resin of black masterbatch is compatible with various plastic types (e.g., PE, PP, PS, ABS), meeting coloring needs for different plastic matrices. It is widely used in plastic packaging, toys, automotive interiors, building materials, etc.
It also performs stably across diverse plastic processing techniques, including injection molding, extrusion, blow molding, and rotational molding.
High Heat and Weather Resistance
Formulated with carbon black and resins incorporating high-temperature additives, it maintains stable coloring effects and physical properties under elevated temperatures, adapting to high-heat processing and usage conditions.
The carbon black effectively absorbs ultraviolet rays, mitigating UV-induced aging and fading of plastic products to extend service life.
Environmentally Friendly and Non-Toxic
Black masterbatch employs non-toxic raw materials compliant with international environmental standards, posing no harm to humans during production or use.
Its granular form eliminates dust pollution, reducing airborne contaminants and improving workplace hygiene.
Easy to Handle and Store and Transport
The granular form of black masterbatch facilitates efficient feeding into automated production equipment, reducing manual complexity and boosting production efficiency.
Its granular shape resists moisture absorption and spillage, enabling long-term storage and transportation while minimizing losses or contamination during warehousing and transit.
Black masterbatch has the above advantages, and many plastic manufacturers like to use it to process plastic products. So, what plastic processing technologies are suitable for carbon black color masterbatch in plastic products? Let’s learn about the plastic processing technology of it.
What plastic processing technology is black color masterbatch suitable for?
Black masterbatch is suitable for a variety of processing technologies, such as injection molding, blow molding, etc. Let us learn more about it.
Use of black color masterbatch in injection molding
During the injection molding process, carbon black colour masterbatch particles are mixed with the plastic raw material in precise proportions. The mixture is heated, melted, and plasticized until it reaches a uniform, fluid state. The material is then injected through a nozzle under high pressure into the cooler mold cavity, where it solidifies as it cools. The mold is opened, and the finished plastic is ready. This injection molding process is ideal for producing high-quality plastic products such as appliance housings, automotive interior components, and plastic toys.
Use of black color masterbatch in blow molding
During the blow molding process, black colour masterbatch is mixed with plastic resin, heated and plasticized in an extruder, and then extruded into a tubular parison, which is then placed into a mold. After the mold closes, compressed air is blown into the parison, causing it to expand and conform to the mold shape. After cooling and solidification, the parison forms a hollow plastic product. This blow molding process is widely used to manufacture hollow plastic products such as plastic films, bottles, and barrels.
Use of black color masterbatch in extrusion process
During the extrusion process, black colour masterbatch is thoroughly mixed with the plastic raw material and fed into the extruder hopper. As the screw rotates, the material gradually melts and plasticizes. The molten mixture is then extruded through a die to form a continuous profile. This profile is then cooled, shaped, stretched, and cut to create the final plastic product. This extrusion technology is typically used to produce products with high mechanical properties, such as plastic pipes, sheets, and rods.
Black masterbatch is crucial in various plastic processing methods—injecting, blow molding, and extrusion—ensuring consistent color, durability, and high-quality surface finishes. Its versatility supports the production of a wide range of plastic products across industries.
Conclusion
Black color masterbatch has the advantages of excellent dispersibility, high hiding power, wide applicability, etc., and is suitable for a variety of plastic processing technologies such as injection molding, blow molding, etc., and it is very popular among many plastic manufacturers.
If you are a plastics manufacturer struggling with uneven product coloring, please contact us today. Huashuo, a professional masterbatch manufacturer, boasts a dedicated service team ready to provide expert solutions to meet your production needs.
