Micronized wax in printing Inks

In printing inks, micronized wax primarily serve to enhance scratch
resistance, abrasion resistance, and anti-blocking properties, while
improving slip and providing moderate matting. They also aid in pigment
dispersion and flow control.‌‌
‌Enhancing Scratch Resistance and Abrasion Resistance‌: Micronized wax (such as
polyethylene wax and polytetrafluoroethylene wax) migrate to the surface
after the ink film forms, creating a micro-rough layer that reduces the
coefficient of friction and significantly improves the print’s resistance to
scratches and abrasion.
‌Preventing Adhesion (Anti-Sticking): During stacking or high-speed web
printing, wax migration reduces adhesion between printed sheets, which is
particularly critical in high-temperature and high-humidity environments.

Click to Enlarge