Minnesota Mining and Manufacturing Company

Charles J Fabbrini

Robert Charles Fitzer

Frank L Deyak

Neal T Strand

Ronald R Adkins

A method of screen printing water-based chemical compositions is provided, where the water-based chemical compositions are virtually solventless, that is, having less than 12% volatile organic solvents when press ready, and the method produces screen printed substrates that are weather-resistant and have excellent color retention.

Screen printing process using water-based chemical composition

A process and composition are provided that provide for thermal transfer of ink compositions and eliminate the need to prepare articles such as sign faces, particularly flexible sign faces, by painting with ink compositions that contain solvents. The present process and composition permit thermal transfer from a carrier to a receptor at low temperatures with the use of vacuum pressure. The transferred ink adheres tenaciously to the receptor and is flexible.

Process of dry adhesive-free thermal transfer of indicia

Thermally transferable ink compositions

Transfer sheet bearing a thermally transferable ink composition and

Growing community of inventors

Stillwater, MN, United States of America

Charles J Fabbrini