Solvent Dyes

A: Solvent dyes dissolve completely in organic media, providing transparent, vibrant coloration. Pigments are solid particles that disperse in the medium and offer opacity. Solvent dyes are ideal for achieving high clarity and transparency in plastics and inks, while pigments provide better opacity and light fastness. Choose solvent dyes for transparent effects; choose pigments for opaque, light-stable applications.

A: Proper dispersion requires: (1) Pre-dissolve the dye in a compatible solvent or liquid carrier before adding to plastic; (2) Use masterbatch formulations for better distribution; (3) Ensure adequate mixing time during processing; (4) Avoid over-concentration — excess dye creates aggregation and poor dispersion. Following these steps ensures consistent color throughout your product and prevents streaks or specks.

A: Solvent dyes work well with most thermoplastics including PVC, PS, ABS, PC, PMMA, PE, and PP. However, compatibility varies by polymer. For crystalline polymers like polyolefins, dye migration may occur at room temperature due to low glass transition temperatures. Always test compatibility with your specific plastic resin before full-scale production.

A: Solvent dyes can be combined with other solvent dyes to create custom shades. However, mixing with pigments or water-based systems is not recommended due to compatibility issues. When creating compound colors, ensure all components are soluble in the same solvent system. For best results, use pre-formulated dye blends or consult with your supplier for compatible combinations.

A: Standard MOQ is 25kg per color. We understand you need to test quality before committing — sample orders (1-5kg) are available at sample pricing. Simply fill out our sample request form and our team will arrange delivery within 3-5 days.