The printing industry has used gum arabic for lithographic printing a long time ago. The printing plate is divided into printed and non-printed parts. Arabian tape is weak acid and because it is water-soluble, it is used as a fountain solution (Fountain Solution). Is one of the raw materials, which can protect the rollers and the non-printed parts of the layout to prevent stains, and prolong the wetting time of the layout. The addition of alcohol to the tank liquid has a great adverse effect on the health of the workers. Will inhale a large amount of volatile gases from solvents. Some countries have banned alcohol in printed tank fluids. When using alcohol-free tank fluids , gum arabic must be added to enhance the function.
Gum arabic is also often used to retain the part of the plate. The good film-forming property protects the layout so that it can be used again
in the future. It can be hand-coated and retained or added to the punching machine, retention machine, etc., and the effect is stable.
Water-based paints such as watercolors or advertising paints use gum arabic as the toner binder, and after drying, the toner firmly adheres to the paper, gum arabic makes the pigments more vivid and beautiful, and the dried paint also has luster. Many watercolors The technique also uses gum arabic, leaving white space, slowing down the drying speed of the pigment and so on.