Micronized wax for printing ink

Micronized wax is a key additive in printing inks, primarily used to enhance surface properties, improve rub resistance, and modify slip & abrasion resistance. Here’s a detailed breakdown of its role, types, and benefits in printing ink formulations:

1. Functions in Printing Inks:

Abrasion & Scratch Resistance: Forms a protective layer on the ink surface, reducing wear during handling.

Slip Improvement: Reduces friction, preventing blocking (sticking) of printed surfaces.

Matting Effect: Can adjust gloss levels (depending on particle size).

Rub Resistance: Prevents ink from smudging during post-printing processes.

Water & Chemical Resistance: Enhances durability in wet or harsh environments.

2. Common Types of Micronized Waxes for Inks:

Polyethylene (PE) Wax: Most widely used; offers excellent rub resistance and slip.

Polypropylene (PP) Wax: Higher hardness, used for tougher abrasion resistance.

PTFE-modified Waxes: Adds exceptional lubricity (e.g., for high-speed printing).

Carnauba Wax (Natural): Used for high-gloss inks and food-contact applications.

Fischer-Tropsch Wax: Synthetic alternative to carnauba with consistent quality.

Paraffin & Microcrystalline Waxes: Lower-cost options for specific applications.