Tonality variation in ceramic tile silkscreen decoration: Effect of ink density and mesh opening gradient

This work aimed to study the effects of ink density and mesh opening on tonality variation of a ceramic glaze decorated by silk-screening. A full factorial experimental design was used in the study, and the control factors were the ink density and the mesh opening; the ink was prepared according a standard ink and it was applied by flexography on a standard glaze. The analysis of variance showed that the screen opening is the factor that most influences the tonality variation of the tiles.