The anti-counterfeiting elements on the acceptance bill include: paper, shading, watermark, steganography, red water line, fluorescent fiber, rainbow printing, anti-alteration, microfilming, seal, password, pressure number and so on.
Step 1: handle identification:
(1), that is, whether there is a concave-convex feeling in the draft number area, and there is no concave-convex feeling in the fake draft.
(2), that is, whether the hand-cranked banknotes make a crisp sound or not, and the fake banknotes make a muddy sound.
Step 2: Visual recognition:
① Observe the light to see if there are full-page flowers and black-and-white watermark patterns of the Chinese phonetic alphabet "HP".
(2), contrast paper printing handwriting is clear.
③ Visually check whether there are colored fibers in the paper.
(4) Whether the bank draft uses the combination special number.
⑤ Whether the numbers are uniformly printed with brown ink, the front of the paper is brown and black, and the back has the effect of red ink.
6. Whether the shading pattern is printed as a rainbow, whether the pattern is composed of different colors, and whether different colors are in a state of continuous transition is very natural and there is no obvious boundary.
⑦ Whether the bank draft is printed by the following four printing plants: Shanghai Securities Printing Plant, Baoding 542 Printing Plant and Baoding Securities Printing Plant. The security professionals who advance the ticket inquire about the monitoring and early warning of the loss of the bank acceptance draft. Xi Banknote Printing Factory Securities Branch or Xi Xichao Securities Printing Co., Ltd., Tianjin People's Printing Factory.
Step 3, using a purple light discriminator to identify:
(1), whether the logo of ICBC emits orange fluorescence under ultraviolet radiation. Record whether badges of other strains emit yellow and green fluorescence under ultraviolet light.
② Whether the "ICBC" of the bank acceptance bill is located between the name of the bank acceptance bill and the voucher number turns yellow and green.
(3) Whether the red water line in the column of RMB amount in words has a weak red light reaction under the ultraviolet lamp, and whether the red water line has changed after being altered.
(4) Whether the colorless fluorescent fibers on the front and back of the bill paper have fluorescent reaction under ultraviolet lamp, and whether the colored fluorescent fibers have no fluorescent reaction under purple lamp.
The fourth step is to use the same amplifier to identify:
That is, whether the dotted line under the name of commercial paper is composed of the Chinese pinyin "return ticket" from left to right.