Digital invoice
An invoice and digital technology, which is applied in the field of important bills, can solve the problems of tax loss, difficulty in tracing, and large loopholes, and achieve the effects of avoiding tax loss, effective fraud prevention, and low production difficulty
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Embodiment 1
[0014] Example 1: figure 1 The 2nd page (2) of the paper adopts the invisible touch-pressure color-developing paper, among which the dark cloth is the leuco strip A (4) and the leuco strip B (5), etc. The corresponding position of (3), such as leuco bar B should develop color at position (6).
Embodiment 2
[0015] Example 2: figure 2 Among them, the second couplet (2) and the fourth couplet (4) use invisible touch-pressure color-developing paper, and the way of laying codes is the same as that of embodiment 1.
Embodiment 3
[0016] Example 3: image 3 In the above, each couplet adopts invisible touch pressure color-developing paper, among which, the hidden color strip A (5) of the dark cloth of the second couplet (2) and the hidden color strip A (5) of the dark cloth of the first couplet (1) and the third couplet (3) The color bars B (4, 6) correspond to each other, and different leuco colors are selected. After filling in, the first link (1), the second link (2), and the third link (3) all show the leuco bar A and the hidden bar B. Discoloration after reaction.
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