A white masterbatch is a specialized additive used in plastic manufacturing processes to provide a consistent and bright white color to plastic products. It is a concentrated form of white pigment or titanium dioxide (TiO2) that is dispersed within a carrier resin. We produce all concentrations up to 70 % for normal and bluish tone based on PE, PP, and PS with glossy and shiny granules.
| Color | White |
| Carrier | LDPE |
|---|---|
| Pigment type | Rutile Titanium Dioxide |
| Density | 1.96 g/cm3 |
| Melf Flow Index | 16 g/10min |
| Food Contact | Yes |
| Compatibility | LDPE, HDPE, PP and Ethylene copolymer |
White masterbatch is formulated using high-quality white pigments or TiO2 that possess excellent color properties and opacity. The selection of pigments is critical in achieving a pure white color and ensuring high color strength.
The carrier resin used in the white masterbatch should be compatible with the base resin of the plastic product. Common carrier resins include polyethylene (PE), polypropylene (PP), polystyrene (PS), and others. Compatibility ensures proper dispersion of the pigment and avoids any compatibility issues with the base resin.
Effective dispersion of the white pigment within the carrier resin is crucial for achieving uniform color distribution and opacity. Techniques such as melt mixing, extrusion, or compounding are employed to ensure thorough dispersion and prevent agglomeration.
White masterbatch is designed to provide excellent opacity and hiding power, allowing it to cover the underlying color of the base resin effectively. This is particularly important when manufacturing products that require a pure white appearance, as it helps achieve a consistent and bright white coloration.
The concentration of the white masterbatch may vary depending on the desired level of whiteness and opacity in the final plastic product. The concentration is typically specified as a percentage, representing the weight ratio of the masterbatch to the base resin.
White masterbatch should exhibit good heat stability to withstand the high temperatures encountered during plastic manufacturing processes, such as melt processing temperatures during extrusion or injection molding. Heat stability ensures that the white color remains consistent and does not degrade or yellow during processing.
White masterbatch should have good lightfastness, meaning it should resist yellowing or discoloration when exposed to sunlight or other sources of UV radiation. This is particularly important for applications where the plastic product may be exposed to outdoor or high-light environments.
Compatibility testing is performed to ensure that the white masterbatch does not negatively affect the mechanical, thermal, or processing properties of the base resin. It is important to evaluate any potential interactions or adverse effects that may arise when the masterbatch is added to the base resin.
White masterbatch is widely used in various plastic manufacturing processes and finds applications in industries such as packaging, automotive, consumer goods, construction, and more. It offers versatility in terms of compatibility with different base resins and processing techniques.
The information provided herein is based on our current knowledge and is intended to offer general guidance on products and their applications. It should not be construed as a guarantee of specific product properties or their suitability for a particular purpose. Due to the wide variability of conditions in product usage, which are beyond MKEY's control, users must independently assess whether MKEY products are suitable for their intended applications prior to use.
The quality of our products is warranted in accordance with our General Terms and Conditions of Sale, which are currently in effect or may be updated in the future. Technical information, test data, and advice provided by MKEY personnel are based on our best knowledge and reliable tests. However, it is assumed that recipients of such information possess the necessary expertise and technical skills to analyze test methods and conditions, as well as handle and utilize raw polymers and related compounding ingredients effectively.
