LANXESS (Macrolex®)

LANXESS (Macrolex®)

LANXESS is a global specialty-chemicals leader and the manufacturer of Macrolex® solvent dyes—high-purity colorants engineered for transparent and translucent plastics. The Macrolex Solvent Blue 97 series is widely used in PET, PC, PMMA, PS, ABS and polyester applications where high thermal stability, excellent lightfastness, strong tinting strength, and low migration are critical. Typical end uses include beverage bottles, optical parts, films/sheets, electrical housings, and cosmetics/packaging. LANXESS offers consistent batch-to-batch quality with technical data for precise color matching and processing across injection, extrusion, and blow-molding.

Seven Star LLC supplies genuine LANXESS Macrolex dyes (e.g., Solvent Blue 97 / Part II / P/N 615290) with regional support—helping you select the right grade, loading percentage, and processing conditions for your polymer and line setup. Need a quick quote or datasheet pack? Contact us to confirm availability, lead time, and compliance documentation.

Frequently Asked Questions

What are the primary applications for LANXESS Macrolex soluble dyes in the plastics industry?
LANXESS Macrolex dyes are premium, solvent-soluble colorants specifically engineered for the mass coloration of amorphous engineering plastics, including polystyrene, polycarbonate, and acrylics. They provide intense, highly transparent coloration with exceptional thermal stability, making them ideal for automotive lighting and demanding optical applications.
How do Macrolex dyes maintain color integrity during high-temperature injection molding?
Macrolex dyes are synthesized with highly stable molecular structures that exhibit outstanding heat resistance, often exceeding 300°C, without undergoing thermal degradation or color shift. This ensures consistent color reproduction and prevents the formation of processing-related defects in demanding injection molding and extrusion processes.
Are LANXESS Macrolex dyes suitable for use in food contact packaging materials?
Several specific grades within the Macrolex portfolio are formulated to comply with stringent global regulatory standards, including FDA and EFSA requirements, for use in food contact applications. However, it is imperative to verify the specific regulatory status and migration limits for each intended polymer matrix and end-use application.
What advantages do Macrolex dyes offer over traditional pigment dispersions in PET coloration?
Unlike insoluble pigments, Macrolex dyes dissolve completely within the polymer melt, resulting in superior transparency, brilliant color strength, and an absence of light-scattering particles. This perfect solubility also eliminates processing issues related to pigment agglomeration and filter blockages during PET fiber spinning and bottle manufacturing.
Can LANXESS provide technical support for color matching and formulation with Macrolex dyes?
Yes, LANXESS operates advanced color competence centers globally, providing comprehensive technical support, precise color matching, and optimized formulation development for specific customer requirements. Our polymer experts utilize state-of-the-art spectrophotometry and processing equipment to ensure the exact desired chromaticity and performance characteristics are achieved.