Tissue Guard

A tissue guard is a thin, semi-transparent sheet placed over an illustration page. In the past, text and illustration pages were printed differently, with illustration pages using more oily ink. The tissue guard in between protected pages from greasy ink pressing through. We don’t see it much in modern books due to advanced printing technology. However,some books still use this feature to have a vintage feel or add a stylish touch. In the printing industry, we refer to this paper as tissue paper or glassine.