what is black masterbatch

what is black masterbatch

In the introduction, what is the black masterbatch? It should be noted that it is a type of additive widely used in the plastic industry for coloring and creating different properties in plastic products. This masterbatch consists of a combination of carbon black and polymer-carriers (usually polyethylene or polypropylene).

One of the distinctive features of the black masterbatch is the uniformity of the color. The color should be the same in all particles without any streaks or spots. The size of the masterbatch should be such that it melts completely in the polymer.

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Understanding Black Masterbatches

What is the black masterbatch? Carbon Black Masterbatch is a widely used additive in the plastic industry, used to color and improve the properties of polymers.

This masterbatch contains raw materials and carbon black (soot) pigment and can contain 5 to 42% of soot. With special formulations, black masterbatch can contain up to 50 or 60% carbon black, but this is not common and most companies use a masterbatch with 42% carbon black. It should be taken into account that excessive consumption of soot causes matte masterbatch.

Black masterbatch is divided into two categories based on gloss:

Glossy Black Masterbatch: This type of masterbatch is suitable for products that need a shiny and stylish appearance, such as home appliances, auto parts, and toys.
Matte black masterbatch: This type of masterbatch is suitable for products that require a matte appearance without light reflection, such as pipes, fittings, and industrial parts.

Companies can produce the black masterbatch type according to the needs of customers. Black Masterbatch has the following features:

Uniformity of color: The color of the masterbatch should be the same in all particles and no streaks or spots should be observed.

Appropriate particle size: Masterbatch particles must be small enough to completely melt into the polymer.

High dispersibility: The masterbatch should be able to melt without any lumps or insoluble particles in the base polymer.

High thermal resistance: the masterbatch must be stable against the heat of the polymer production process and not lose its properties.

Kaysa Polymer Company is a pioneer in producing colored, black, white, and economic masterbatch. To get information about the price, purchase, and sale masterbatch, contact the sales office number +982122500033 or WhatsApp +989125436521.

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Black masterbatch production process

In the introduction of black masterbatch, what is black masterbatch? You need to familiarize yourself with the production process of this material. The production process of black masterbatch includes the following steps:

Preparation of raw materials

Soot: Soot is the main raw material of black masterbatch, which is obtained from the incomplete combustion of hydrocarbon materials such as oil, natural gas, and coal. The carbon black used in the production of black masterbatch must meet the required standards in terms of particle quality and fineness.
Carrier resin: The carrier resin has the task of holding soot particles uniformly. This action makes it spread evenly in the plastic. The type of carrier resin is selected according to the desired plastic type.

Mixing

They use an extruder to combine the ingredients. For this purpose, soot and carrier resin are mixed in certain amounts.
The mixing step is done using powerful and high-speed rotary mixers. This step helps to spread the soot particles completely in the carrier resin and create a uniform mixture without lumps.

Grind

After mixing, the mixture of carbon black and carrier resin is ground until its particles reach the desired size.
The size of black masterbatch particles affects the color quality, dispersion, and final properties of the plastic.
Milling is usually done in several steps to obtain uniform sized particles with nanometer dimensions.

dry

The moisture in the mixture is removed using special drying devices.
The presence of moisture in the black masterbatch can cause bubbles and defects in the final product.

Granulation

The dried black masterbatch comes in the form of fine granules.
Granules are converted into this form for ease of transportation, storage, and use in plastic manufacturing processes.

Quality Control

Finally, the quality of the produced black masterbatch is precisely controlled in terms of color, particle dispersion, particle size, moisture content and other important parameters.
Only quality-approved masterbatches are packed and supplied to customers.

Factors affecting the quality of black masterbatch

The quality of black masterbatch depends on various factors, some of the most important of which are mentioned below:

  1. Quality of raw materials: Black masterbatch consists of carbon black, base resin, and Nietzsche additives. Particle size and purity of carbon black have a great impact on the quality of the produced masterbatch. High-quality carbon black provides a deeper black color, better dispersion, and better mechanical and thermal properties. Using a base resin that is compatible with the type of masterbatch application. If additives such as antioxidants, anti-UV rays or softeners are used, high-quality raw materials must be used to transfer the desired properties to the final product.
  2. Production process: Uniform mixing of carbon black and base resin is one of the most important stages of black masterbatch production. Improper mixing can lead to black lines and streaks in the final product. Soot particles should be uniformly dispersed in the base resin to prevent the creation of coarse particles and the problems caused by it. In all stages of black masterbatch production, appropriate quality control methods should be used to ensure the quality of the final product.
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کاربردهای مستربچ مشکی

Important features in distinguishing the quality of black masterbatch

To recognize the quality of black masterbatch, it is very important to pay attention to the following features:

Key features to distinguish the quality of black masterbatch

  1. Composition and structure
  • Carbon black content: the percentage of carbon black in the black masterbatch of Kaysa polymer company is between 25% and 40%. This percentage has a direct effect on the coloring and mechanical properties of the final product.
  • Compatibility with polymers: The masterbatch must be compatible with the raw materials to be used, such as polyethylene or polypropylene, to achieve the best results.
  1. Appearance and uniformity
  • Uniform appearance: quality black masterbatch should have a uniform appearance without streaks or non-uniform grains. This feature helps to prevent problems such as streaking in the finished products.
  • Gloss: The surface of the masterbatch should be glossy and smooth, which indicates the high quality of the pigments and the manufacturing process.
  1. Mechanical and thermal properties
  • Thermal stability: Black masterbatch should be used at high temperatures without structural changes and physical properties. This feature contributes to the durability and longevity of the final products.
  • Mechanical resistance: increasing tear and impact resistance is one of the other important features of quality masterbatch, which is especially important in the packaging and pipe-making industries.
  1. Dispersion and coloring
  • Uniform Dispersion: A quality black masterbatch should have excellent dispersion, which makes the color evenly distributed in the finished product.
  • Tinting power: Masterbatch’s high tinting power, which creates deep black color and full coverage without light transmission, is another key feature.
  1. Price and supplier
  • Reasonable price: The price of black masterbatch should be proportional to its quality. Comparing prices from different suppliers can help you choose the best option.
  Clarifying agent for plastic

According to these features, you can distinguish high-quality black masterbatch from low-quality samples and make a better choice.

Application of black masterbatch

Black Masterbatch is a widely used compound in the plastic industry, which has a variety of applications:

Production of all kinds of packaging films: Black masterbatch is used as a black coloring agent in the production of packaging films and gives them a shiny and beautiful black color.
Production of nylon and garbage bags: Black Masterbatch is used in the production of all kinds of nylon and garbage bags due to its resistance to environmental conditions.
 Injection parts: Black masterbatch is used as a pigment in the production of plastic parts by injection method. It is used in the production of decorative parts and car accessories.
Production of high-quality and durable disposable containers: Black Masterbatch is used in the production of plastic disposable containers due to its resistance characteristics and the beautiful appearance it gives to products.
Production of polyethylene pipes and fittings and tip tape: Black masterbatch is used as a pigment in the production of polyethylene pipes and fittings and tip tape.

In general, black masterbatch is used in a wide range of industries due to its resistance characteristics and the beautiful appearance it gives to plastic products.

What does the Masterbatch look like?

The appearance of the masterbatch depends on its type and its use. However, in general, the masterbatch should have the following characteristics:

Appearance:

Granules: Masterbatch is usually supplied as small granules. This appearance makes it easy to transport and use.
Uniform color: The color of the masterbatch should be uniform and free of any streaks or spots. This causes uniform distribution of the pigment in the carrier resin.
Smooth surface: The surface of the masterbatch must be smooth and free of any unevenness or cracks. This indicates the correct processing of the production masterbatch.

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