How to identify washed paper money

First, the appearance appraisal method

Paper money is printed on special paper. As long as all paper products encounter water, the surface will be uneven and there will be traces of moisture after drying. Paper money is no exception. The washed paper money must be flattened by gravity. But no matter how you press the coin with a jack, there will be slight water ripples in the corners.

It can't be as flat and crisp as brand-new paper money. Just turn the paper money over and look around. If there is a "W"-shaped corrugated edge, it must be underwater. At the same time, there will be slight paper fiber fuzz on the four corners or sides of the washed banknotes, which is the result of cleaning.

Second, the brush color recognition method

After the paper money is washed, the brush color of the pattern usually becomes dim, and the brush color of the new original paper money is not bright. Some banknote patterns even fade. For example, the red one-dollar notes in the second edition of RMB. The main brush color of the new and original banknotes is bright red, and the background shading of Tiananmen pattern is mixed with light yellow.

Because the technical difficulties of printing ink were not overcome at that time, as long as the second edition was washed in water, the bright red on its face would become dim light red and the shading color on its face would fade. If the paper money is washed by excessive chemicals, the shadow pattern will be partially missing.

Although other versions of RMB will not fade after washing, it is an indisputable fact that it will fade. As shown in the figure, it is a comparison between the new original ticket and the washed ticket of 10 yuan 3rd edition and 1990 yuan 4th edition. It's the clear background of the brand-new original ticket, the third edition 10 yuan ticket, and it's a comparison chart between the washed ticket and the brand-new ticket, with the washed ticket at the top.

For the fourth edition 1990, compare 100 yuan coupons. It's a washed ticket, and some shading patterns are missing. Using brand-new original tickets for comparison is the best way to identify washed banknotes.

Third, the identification method of patina

The new and original banknotes have bright ink color and intact patina. Paper with no pattern in the blank part is shiny and has a smooth texture. The watermark of paper money and the pattern of colorless fluorescent ink are appreciated against the light and easy to observe. Watermark pattern or colorless fluorescent pattern is bright and shiny, and will reflect light under natural light. But the effect of washing money is not obvious or even has no such effect.

Short-term use of clean water to treat flattened paper money pulp may not be destroyed. However, if a part of the paper money is washed with water, its patina will be destroyed. After cleaning, part of the patina is completely lost, and the paper is dull, the pattern is not bright, and there is no sense of brightness. The treated face will be a little hairy.

Fourth, the fluorescence identification method

Paper washing money is nothing more than soaking and flattening with clear water, cleaning with washing powder solution or cleaning with special detergent. Clean water is generally tap water, and tap water and washing powder generally contain fluorescent bleach. Paper money soaked in tap water or washed with washing powder solution will show bright white fluorescence effect under purple light after being flattened and dried.

On the other hand, there will be no fluorescence reaction on the original ticket as a whole, and only the fluorescent ink part will show fluorescent color in the banknote printed with fluorescent ink. Above is the third edition of 2 yuan Turner paper money, which has been washed with a solution containing fluorescent bleach. The above is the washed 1990 version 100 yuan coupon. The overall fluorescence effect is extremely obvious under violet light.

The paper money washed with medicine is even more exposed under the purple light: it is a 1980 version of 2 yuan voucher, and its key cleaning part is dark purple under the purple light, and the whole face is spotted like a big face, and the original spot position is clear at a glance. But once the purple light is turned off, these special phenomena cannot be seen.

Fifth, perspective identification method.

This method is generally used to identify whether paper money is seriously damaged. If there is a hard crease in the middle of the paper money, it is not easy to find its defects in the paper money after being treated with water and flattened. The key is to gently touch the middle part of the banknote with your fingers to feel whether there is a crease. If not, please see the paper money through a strong light source. If there is a black vertical straight line, it proves that the paper money was originally folded and flattened after being put into clear water.

Six, size identification method

Paper money will be deformed after being put in, which is inconsistent with the original size. This is because the crushing force after launch is different. This requires consulting the information of paper money, knowing its real size, and measuring the actual size of paper money with a ruler. If the size of the paper money is slightly larger or smaller, it proves that the paper money must have been mixed with water. Usually, a note with a slightly smaller size and sharp corners must be cut off, and it must be a washed note.

Seven. Recognition method of steel seal prefix

For example, some prefix numbers of the second and third editions of banknotes are stamped with steel seals. Usually, on the reverse side of paper money, we can clearly see the protruding marks of the prefix number, which feels concave and convex with our hands. If paper money is pressed under water pressure, the back of the stamp will almost be flattened and the concave and convex marks will disappear.

Eight, odor identification method

Paper money washed with medicine will have a pungent chemical smell in a short time, but with the passage of time, the pungent smell will gradually fade or even disappear. However, no matter how long the new original banknote has been printed, as long as you smell it, you will feel the unique fragrance of the ink. Just strong and light. Liquid medicine cleans coins and loses the smell of ink. However, the paper money flattened by clear water cannot be recognized by odor recognition method.

Nine, speech recognition method

Brand-new paper money will make a crisp crash when you flick it with your fingers, or it will make a crash when you grab one end of the paper money with your fingers and shake it up and down. The sound of washed paper money is dull and not crisp enough.

Extended data:

A, clean water cleaning method

Cleaning target: mainly for paper money with soft folds or slightly black and dirty paper money.

First: take a plate of clean water and soak paper money in water without adding any medicine. The soaking time varies with the characteristics of paper money, and the shortest is half an hour; Generally, the deeper and harder ones take two hours to a day to soak. The purpose is to soak and soften the paper money so that the wrinkles are not visible.

Second: take out the coins and dry them. It's best to put them on absorbent white napkins and wait for about half an hour to dry. Don't be stiff.

Third: put it in a water-absorbing book (not in a newspaper) and put heavy objects on it for half a day.

Fourth: take it out of the absorbent book. At this time, many banknotes will be wrinkled, so put them in a book with smooth offset paper (the book with thick coated paper is best), put heavy objects on it, and press them for half a day. The professional tools of qualified money dealers are of course the best, but many people don't have them. Some money dealers have made tons of professional suppression tools, isn't it amazing? Hehe) When you take it out again, the general soft folding disappears without a trace.

Second, the potion cleaning method:

Cleaning objects: mainly for dirty moldy banknotes, rusty banknotes, yellow banknotes, etc.

The previous cleaning method is different, and the latter method is the same as the clean water cleaning method.

Different bills have different methods:

For dirty: generally use the "decontamination spirit" sold in the store. Soak the paper money first, then dip it with a cotton swab, wash it gently and repeatedly in a dirty place, and wash it directly.

Rusty: Go to the store to buy a kind of "derusting spirit", mix it with appropriate water (you must have experience and try again and again), put a little bit in the rusty place after mixing, and rust can be removed in a few minutes.

There are mildew spots and yellow spots: buy potassium permanganate and vitamin C first, which are available in general pharmacies. First, mix potassium permanganate with water (appropriate amount, experienced), and apply the potassium permanganate solution to the moldy place for about five to ten minutes. At the same time, put some clear water here, melt five to ten tablets of vitamin C in clear water, then put the soaked paper money in vitamin C water and remove the red potassium permanganate from the paper money.

The next method is the same as the clean water cleaning method. If you think the paper money is too thin and soft, you can paste it with colorless and odorless pulp.

That's it. It's easier said than done. Many coin collectors want to learn. Most coin collectors have mastered this method. Unfortunately, the cleaning effect is not ideal because the technology has been unable to get up, and then they have no patience to give up.

Features of washed paper money: The face feels a little thin and smooth. Generally, fresh water has little effect on paper money. If the water is heavy, after two or three years, you will find that your face is yellow and even spotted.

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