Features

Mechanism of Abrasion Resistance II

Research shows PTFE film serves as the nucleation site for the crystallization of wax

In 1970, it was learned that a PTFE micropowder in combination with wax greatly increased the rub resistance of printing ink. An early investigation of the mechanism was done by printing on a transparent substrate and rubbing with paper. The microscope was then used to study the appearance.   Fig. 1: Liquid appearance of the wax suggests pressure melting. Some of the rub streaks caused by the paper fibers had the appearance of a flowing liquid, which was interpreted as the wa...

Become an Industry Insider and get FREE 24/7 access to this story and all of Ink World magazine.


Already a subscriber? Sign in

Add us as a preferred source on Google

Get the latest Ink World magazine news, insights and analysis in your Google Search and AI experiences.

Keep Up With Our Content. Subscribe To Ink World magazine Newsletters