White Masterbatch

White masterbatch is primarily made using titanium dioxide as the main pigment, produced through a twin-screw extrusion process. It features bright color, high color strength, excellent dispersion, high concentration, good whiteness, strong coverage, and reasonable pricing. It also exhibits good resistance to migration and heat. White masterbatch is categorized into general-purpose masterbatch and specialized masterbatch. We can customize colors and provide samples based on your specific requirements, and offer small samples upon request.

  • Color pigment: Titanium dioxide/anatase-type titanium dioxide
  • Carrier: PE/PP/PS/ABS/PET/TPU
  • Dispersing agents: Types include polyethylene wax, oxidized polyethylene wax, stearate salts, etc.
  • Functional additives: Brighteners, light stabilizers/UV absorbers, antioxidants, lubricants, release agents, plasticizers, fillers, flame retardants, anti-static agents, anti-fog agents, antibacterial agents/mold inhibitors, biodegradable additives, etc.
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Advantages of White Masterbatch

Even and stable coloration
Compared to directly adding powdered pigments, color masterbatches ensure high consistency between batches and more even dispersion.

Convenient to use
Granular form facilitates measurement, transportation, and mixing, reducing dust pollution.

Improved production efficiency
Simplifies the mixing process, shortens mixing time, and reduces material loss during color changes.

Improved product quality
Good dispersion enhances the gloss, mechanical properties, and appearance of the finished product.

White Masterbatch
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Cost savings
Although color masterbatches have a higher unit price than pigments, the overall cost is often lower due to precise measurement, reduced waste, improved production efficiency, and lower defect rates.

Environmental friendliness
Reduces dust dispersion, as pigments are encapsulated in resin, lowering the risk of environmental pollution.

Specifications

IndexValue
ResinPE/PP/ABS
PigmentRutile titanium dioxide
Titanium dioxide content20%-70%
Mfr 21.6kg\190℃30g\10min
IntermiscibilityPP,PP-R
Application

“White Masterbatch in Different Industries.”

– Enhance pigment characteristics and improve opacity

Home Appliances and Electronics Industry: White masterbatch is widely used in washing machine housings, plastic containers, and other home appliance components, providing pure whiteness and lasting luster while enhancing the product’s anti-aging performance and durability.

Food Packaging and Plastic Sheets: Applied in food packaging films, sheets, and containers, it not only achieves a clean and attractive appearance but also has good weather resistance and safety, meeting the requirements for food contact materials.

Automotive Manufacturing: Used in automotive interior components, exterior parts, and functional assemblies, providing consistent white coloration while enhancing the material’s UV resistance and mechanical strength.

Medical and Electronic Devices: Applied in medical instruments, device housings, and electronic product components, ensuring high cleanliness, excellent coverage, and superior processing stability.

Optimizing productivity and costs

White master batch improves the opacity and coverage of films, sheets, and molded products, and is suitable for flexible and rigid packaging as well as industrial applications. By reducing the amount of polymer and titanium dioxide used, manufacturers can improve efficiency or reduce costs.

  • Injection

    White Masterbatch For Blow Molding
  • Pipe

    White Masterbatch For Building Materials
  • The application of white masterbatch in food packaging film
    The Application Of White Masterbatch In Food Packaging Film
  • White Masterbatch In The Home Appliance Industry
    White Masterbatch In The Home Appliance Industry
  • White Masterbatch For White Electronic Products
    White Masterbatch For Electronic Products

FAQS

What are the ingredients of white masterbatch?

White masterbatch is a functional plastic additive primarily composed of titanium dioxide (TiO₂) as its main coloring component. Its typical formulation includes 70–80% titanium dioxide, 15–25% carrier resin (such as PE, PP, etc.), and functional additives such as dispersants and stabilizers. This formulation leverages the synergistic effects of its components to precisely control whiteness, opacity, and weather resistance, while maintaining processing performance. It provides excellent optical properties and durability for plastic products, making it widely used in packaging, construction materials, electronics, and other industries.

Characteristics of White Masterbatch

White masterbatch is a core functional material for coloring plastic products, and its characteristics are primarily reflected in the following aspects:

Through optimized formulation design, precise control of whiteness can be achieved to meet the specific color requirements of different application scenarios;

Its unique light-blocking properties enhance the UV protection of the finished product, making it particularly suitable for outdoor applications requiring light stability;

The specially treated masterbatch formulation effectively improves the heat deflection temperature of the plastic substrate, expanding the product’s temperature range;

Supports targeted adjustments based on the mechanical performance requirements of the end product, ensuring both color performance and functional requirements are met.

Advantages of White Color Masterbatches

White color masterbatches are the ideal coloring solution for the plastics industry to enhance both economic efficiency and aesthetic requirements. The main advantages include:

  • Excellent dispersion, ensuring uniform and stable color, suitable for various polymer systems and processing methods;
  • Strong coverage, enabling plastic products to achieve a pure and bright white effect, significantly enhancing product aesthetics;
  • Good processing stability and batch consistency, simplifying production processes and improving efficiency.

How to use white masterbatch？

Mix white masterbatch with natural-colored plastic pellets at a ratio of 1% to 4% by weight → Add to the hopper of an injection molding machine/extruder → No pre-drying required (if the moisture content of the masterbatch is ≤0.3%) → Heat and melt directly (temperature set according to the carrier resin, e.g., 180-230°C for PP) → Process into finished products → Test the whiteness and opacity of the finished products

How to make white masterbatch?

Selected raw materials: Strictly screened rutile titanium dioxide, carrier resins matched to melt index, and functional additives.

High shear pre-dispersion: Initial dispersion of titanium dioxide is achieved through high-speed mixing and twin-screw extrusion, with segmented temperature control (160-220°C).

Twin-screw extrusion homogenization: Agglomerates are thoroughly dispersed using a high-shear combination block, with real-time monitoring of melt pressure and torque.

Underwater hot cutting: The melt is cooled in warm water (50±2°C) and then rotary cut to form particles with a diameter of 2-3 mm and uniform length.

Finished product control: Whiteness, melt index, and other indicators are tested, and the product is stored in aluminum foil bags sealed with nitrogen to prevent moisture.

What are the advantages of white masterbatch over directly adding titanium dioxide?

Comparison DimensionsWhite masterbatchDirect addition of titanium dioxide
Production EnvironmentDust-free (particle form)Dust flies around, polluting equipment and endangering health
Dispersion UniformityAutomatic dispersion (carrier coating)Requires vigorous mixing, but still prone to agglomeration
Overall CostReduces titanium dioxide usage by 10%-15%High loss rate, increasing cleaning costs
Customization FlexibilityCan be pre-mixed with antioxidant/flame retardant propertiesRequires separate addition of additives, increasing costs and risks

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Free Color Matching Service

Huashuo is a professional masterbatch factory and supplier with advanced pilot mixing production lines and comprehensive testing laboratories to support formula development and mass production needs. We combine spectrophotometry technology with professional visual assessment to establish a standardized color matching process, providing customers with efficient and stable customized color solutions. Please contact our technical team for exclusive color matching support and sample services.

Provide us with a reference for your desired color—either a physical sample or a selection from our existing color portfolio.
Accepted reference formats include:

  • Masterbatch concentrate
  • Finished product sample
  • Paper swatch
  • Paint sample
  • Pantone® color code
  • Film sample
  • Other material references

Once your sample is received, we perform spectrophotometric analysis to establish an initial formulation for the target color.

Pigment selection is guided by the specific application criteria you provide. To ensure optimal formulation, please share the following details about your finished product:

  • Intended application
  • Base resin type
  • FDA compliance requirements, if applicable
  • Expected service life under sunlight exposure
  • Manufacturing process and typical processing temperatures
  • Part thickness
  • Let-down ratio
  • Acceptable color tolerance range
  • Need for spectrophotometric readings and Delta E tolerance specifications

An initial trial batch is produced and evaluated against the reference sample using both visual inspection and spectrophotometric measurements.

Upon finalizing the color match, we supply the following:

  • Color chip samples
  • Safety Data Sheet (SDS)
  • FDA compliance certificate, if applicable
  • 5–10 lb product sample, upon request

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Send us an inquiry today to learn more and receive the latest pricing. Thank you!