What is the difference between the printing ink poured on iron and plastic barrels?
Oily ink packaging to suggest (to prevent iron storage for a long time after the oil ink in the organic solvent and plastic barrels produced reaction);
Water-based ink proposed packaging plastic barrels (to prevent the store for a long time due to the pH value of the cause of iron rust (oxidation) reaction).
Printing ink, oily ink and water-based ink.
