There are several ways to identify real and fake US dollars :
- Hand feel identification: The front and back of the real dollar are engraved and gravure printed. The denomination numbers in the four corners are touched by hand, and there are obvious bumps. The fake dollar generally has no bumps. Observed with a magnifying glass, you can see the gravure micro-text.
- Needle picking identification: The blank space of the real dollar bill contains a small red and blue fiber filament, which can be picked out with a needle tip. Some fake dollars have no red and blue fibers, and some are only printed on the surface. The filaments that cannot be separated from the paper, and some papers have red and blue fibers, although they can be picked out with a needle, but the material of the fake filaments is different, and there is no fluorescent reaction when inspected under a violet light.
- Wipe identification: The green emblem and number on the right side of the real dollar ticket will leave a bright green mark on the paper after rubbing it hard on the white paper.
- Texture identification: The real dollar uses a special paper for printing banknotes made of cotton and hemp fibers. The texture is tough and straight, and it can make a popping sound with a flick of the hand, while the fake dollar does not. any sound.
- Color identification: The positive characters, images, text, and lace of the real dollar are printed with jet black gravure ink containing magnetic substances, which are bright and eye-catching. .
- Character portrait identification: The real dollar portraits have bright eyes, while the fake dollar portraits have dull eyes and blurred lines.