Check washing process of washing a check is relatively simple and can be accomplished with basic solvents. The actual solvent is largely irrelevant — more importantly, the polarity of the solvent must match the polarity of the dye in the ink. For example, an ink that is mostly made of a polar dye would require a polar solvent (e.g. acetone or isopropanol). Both nail polish remover (acetone) and rubbing alcohol (isopropanol) are able to pull most common inks away from paper in minutes. Similarly, a non-polar dye would require a non-polar solvent (e.g. toluene or a similar hydrocarbon). Check washing Check washing
Nail art the same time, 3000 B.C., the first nail polish originated in ancient China. It was made from beeswax, egg whites, gelatin, vegetable dyes, and gum arabic. Chinese dipped their nails in this mixture for several hours or left it on to dry. Colors ranged from pink to red, depending on the mixture of the ingredients. During the Zhou Dynasty, 600 B.C., royalty used this simple nail polish with gold and silver dust on their nails to show their social status.The Ming dynasty (1368-1644) was known for extremely long nails. Sometimes these nails were protected by gold and jewel-encrusted nail guards.