Enhancing Flexographic Inks with Advanced Wax Modifiers

Introduction

Flexographic (flexo) printing inks dominate the packaging and label industry thanks to their ability to print on films, foils, and paper substrates. But formulating flexo inks is not without challenges: inks must dry quickly, resist scuffing, and provide excellent slip during high-speed production.

Wax additives help formulators enhance ink durability, ensuring printed packaging survives shipping, handling, and end-use conditions.

Industry Challenges

1. Slip Control: Labels and packaging films require optimal slip for processing.

2. Rub Resistance: Inks are prone to smudging during transport and storage.

3. Gloss & Aesthetics: Balancing durability with high-quality visual effects.

4. Low VOC Requirements: Additives must fit water-based or low-VOC ink systems.

Wax Additive Benefits in Flexo Inks

• Improved Slip: Reduces friction in packaging lines, preventing blocking.

• Enhanced Rub Resistance: Protects ink films from abrasion.

• Gloss Management: Enables both glossy and matte print effects.

• Compatibility: Effective in water-based, solvent-based, and UV flexo inks.

Application Examples

• Label Printing: A global label producer added micronized PE wax, improving slip and reducing label scratching in roll-to-roll production.

• Flexible Packaging: FT wax additives increased rub resistance, ensuring food packaging prints survived long-distance shipping.

Technical Insights

• FT Waxes: Provide hard surfaces with high scratch resistance.

• Oxidized Waxes: Better dispersion in polar water-based systems.

• Particle Size: Fine wax ensures clarity on transparent substrates.

Flexo inks must combine durability with fast production efficiency. Wax additives give formulators the flexibility to improve slip, rub resistance, and gloss while remaining VOC-compliant.

Reach out to our experts today to find the best wax solution for your flexographic inks. We offer tailored recommendations and sample support to help your products succeed.