CN112455120A

CN112455120A - Anti-fake method for perforation saw teeth

Info

Publication number: CN112455120A
Application number: CN202011512000.1A
Authority: CN
Inventors: 陈明发
Original assignee: Take A Picture Of Hainan Artificial Intelligence Co ltd
Current assignee: Take A Picture Of Hainan Artificial Intelligence Co ltd
Priority date: 2020-11-28
Filing date: 2020-12-19
Publication date: 2021-03-09
Also published as: CN112700264A; CN214042837U; CN112466201A; CN112700264B; CN112455121A; CN112633448A

Abstract

The invention provides a perforation sawtooth anti-counterfeiting method, which comprises the steps of arranging local high and low layers such as a local thickening layer or/and a local reducing layer on a printing stock; the edge of the local high-low layer forms a ridge step with obvious touch on a printing stock; the ink code/image is printed on the edge steps in a riding mode, and ink edge sawteeth are formed in the corner areas of the edge steps. And storing the ink edge sawtooth characteristic information into a cloud database so that the public can use a camera mobile phone to check the authenticity. The method can not copy and forge, has high checking accuracy and is convenient for detecting the authenticity of the edge step by touching with a finger.

Description

Anti-fake method for perforation saw teeth

Technical Field

The invention belongs to the technical field of information inquiry anti-counterfeiting, and particularly relates to a perforation sawtooth anti-counterfeiting method which is an improved technology of a Chinese patent 'ink edge anti-counterfeiting method and an ink edge anti-counterfeiting network identification system (CN 106096971B)'.

Background

The Chinese patent 'ink edge anti-counterfeiting method and ink edge anti-counterfeiting network identification system (CN 106096971B)' authorizes the technical scheme of the applicant for anti-counterfeiting by using ink edge sawteeth, and comprises the steps of printing codes/pictures and texts on a printing stock, and randomly deforming the edges of the codes/pictures and texts ink to generate personalized ink edge sawteeth; carrying out enlarged shooting on the printed codes/pictures and texts so as to shoot and obtain the ink edge sawtooth characteristic information and the code information; the ink edge sawtooth characteristic information and the corresponding coding information obtained by amplification shooting are stored in an anti-counterfeiting network identification system database, namely a cloud database, and are used as anti-counterfeiting characteristic information for the public to use a camera mobile phone to check the authenticity.

The study showed that: after a counterfeiter obtains the ink edge sawtooth image of the code or the image and text by a high-definition scanning method, very vivid ink edge sawtooth can be printed and copied by a plate printing process such as an offset press, so that the software identification difficulty of the anti-counterfeiting checking system is increased, and the checking accuracy is reduced.

How to increase the difficulty of copying and forging ink edge sawteeth to improve the inspection accuracy is always a technical problem to be solved by an ink edge anti-counterfeiting method and an ink edge anti-counterfeiting network identification system (CN 106096971B).

Disclosure of Invention

The purpose of the invention is as follows: the anti-counterfeiting method for the perforation sawteeth is provided to increase the copying and counterfeiting difficulty of the ink along the sawteeth, improve the inspection accuracy and facilitate the finger touch inspection.

A perforation sawtooth anti-counterfeiting method comprises printing ink codes/pictures and texts on a printing stock, and randomly deforming the edges of the ink codes/pictures and texts to generate personalized ink edge sawteeth; store black along sawtooth characteristic information to high in the clouds database to supply the public to use the cell-phone of shooing to examine true and false, its characterized in that:

firstly, arranging a local thickening layer or/and a local reduction layer on a printing stock, wherein the local thickening layer or/and the local reduction layer is called as a local high layer or a local low layer;

secondly, edge steps with obvious touch feeling are formed on the printing stock by the edges of the local high-low layers;

and thirdly, printing ink codes/pictures and texts on the ridge steps (just like a stitching seal is added), and forming ink edge sawteeth in corner areas (belonging to dead corner areas where ink is difficult to print) of the ridge steps.

Preferably, the anti-counterfeiting method for the perforation sawteeth has the thickness of local high and low layers, namely the height of the edge steps, of 0.02 mm-0.8 mm, and in order to improve the production efficiency and meet the requirement of obvious touch feeling, the height of the edge steps can be set to be 0.05 mm-0.35 mm, and is preferably set to be 0.1 mm-0.2 mm.

Preferably, the surface tension L of the printing stock of the method for preventing forgery of the perforation sawtooth₁Surface tension L with local high and low layers₂The ratio of k = L₁/ L₂K is not less than 1.2, or 1/k is not less than 1.2. In order to increase the difficulty of counterfeiting, k is preferably more than or equal to 3, or 1/k is more than or equal to 3, so that the ink edge sawteeth on the upper side and the lower side of the edge step have stronger individuality and uniqueness and have obvious difference. In other words, the surface tension L of the substrate₁Surface tension L with local high and low layers₂Preferably not equal or close.

Preferably, the anti-counterfeiting method of the perforation sawtooth is characterized in that (ink lines of) the codes/pictures and texts printed on the edge steps are uninterrupted and are not staggered. In other words, the coding/graphics (ink lines) above and below the ridge step are continuous and aligned.

Preferably, in order to avoid the codes/graphics (ink lines) from being broken in the corner area of the edge step, the ink jet direction of the nozzle is opposite to the corner area of the edge step, and the codes/graphics are jet-printed to the corner area of the edge step according to the direction forming an angle of 45-75 degrees with the moving direction of the printing stock. In other words, the nozzle is not perpendicular to the moving direction of the printing stock according to the conventional jet printing method, but is inclined and keeps an angle of 45-75 degrees with the paper feeding direction.

Preferably, the localized reduction layer is a localized depression cut into the substrate by a laser engraving machine.

Preferably, the local thickening layer is a local relief applied to the substrate or a local ink-blown relief printed on the substrate.

Preferably, the code and the text are combined into one, in other words, the code is used as the text.

Preferably, the substrate comprises a skin layer and an inner layer; a release agent layer is arranged between the surface layer and the inner layer, and a strippable structure is formed between the surface layer and the inner layer through the release agent layer; the surface layer is carved with local holes to form a local reduction layer; one part of ink of the ink code/image is sprayed and printed on the surface layer, and the other part of ink is sprayed and dropped on the inner layer, namely the local reduction layer through the holes, and is diffused and deformed to form ink edge sawteeth riding and printed on the edge steps.

Therefore, a counterfeiter can only lift the surface layer but not the inner layer, and ink in the carved hole is necessarily retained on the commodity along the sawteeth, so that the ink edge characteristic information cannot be completely recovered, and the recovery and the counterfeiting are prevented.

Compared with the prior art, the invention can produce the following beneficial technical effects.

First, cannot replicate: the current plate printing process transfers the ink image and text to the contacted printing stock through a printing plate. Because the heights of two sides of the edge step are different, the printing plate can not contact the lower part, so that a counterfeiter can not transfer the ink which is wanted to be forged to the lower part along the printing plate for the saw teeth, particularly can not transfer the ink which is wanted to be forged to the corner area (namely a dead corner area) of the edge step along the printing plate for the saw teeth, and can not guarantee uninterrupted, dislocation-free and crack-free. If the counterfeiter also adopts the plateless printing process such as jet printing, the ink sprayed to the position near the edge step is inevitably and rapidly diffused and deformed, so that the copied and counterfeited ink is different from the original plate along the saw teeth, and the software of the anti-counterfeiting checking system can be easily identified, so that the product adopting the anti-counterfeiting method of the perforation saw teeth has the characteristic of being incapable of being copied.

Secondly, the query accuracy is high: because the ink in the corner area of the ridge step cannot be copied along the saw teeth, the software identification accuracy of the anti-counterfeiting checking system is greatly improved.

Thirdly, bare-handed touch examination: the public can touch the edge steps with hands, obviously perceive whether the edge steps exist or not, and accordingly the authenticity of the edge steps is determined by hands.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.

Fig. 1 is a schematic view of a perforation sawtooth anti-counterfeiting marker in a first embodiment of the invention.

Fig. 2 is an enlarged schematic view of the cross-sectional structure at the position a-B in fig. 1.

Fig. 3 is a schematic view of a perforation sawtooth anti-counterfeiting marker in the second embodiment of the invention.

Fig. 4 is an enlarged schematic view of the cross-sectional structure at the position C-D in fig. 3.

Fig. 5 is a schematic view of a perforation sawtooth anti-counterfeiting marker in the third embodiment of the invention.

Fig. 6 is an enlarged view of a cross-sectional structure at the position E-F in fig. 5.

Fig. 7 is a schematic view of a smaller size of the local high and low layer arrangement that can be used in the present invention.

FIG. 8 is a schematic view of an ink ejection direction of a nozzle used in the present invention.

The reference numbers illustrate: 1-printing stock, 101-surface layer, 102-inner layer, 103-parting agent layer, 2-code, 3-local high and low layer, 301-local thickening layer, 302-local reducing layer, 4-picture and text, 5-edge step, 501-corner area, and 6-ink along sawtooth and 7-nozzle ink jet direction.

Detailed Description

The first embodiment.

The adhesive sticker fragile paper (the paper thickness is preferably 0.15 mm) is adopted as the printing stock 1. As shown in fig. 1 and 2, a rectangular local thickening layer 301 having a thickness of 0.3mm, a length of 12mm and a width of 8mm is printed with foaming ink next to the code 2 in the form of a two-dimensional code having a width of 16 mm. So as to form a sharp-touch edge step 5 between the substrate 1 and the local thickening layer 301.

Preferably, the local high-low layer 3 in the present invention can be selected from various suitable geometric figures, symbols, characters, points, lines, surfaces and other patterns. For example, referring to FIG. 7, a plurality of local thickening layers 301 (of smaller size, for example 0.1-5mm wide) are arranged together, with a spacing between two adjacent local thickening layers 301 of ≦ 5mm, preferably ≦ 0.5 mm. Thus, the tactile sensation of the hand-touch ridge step 5 becomes more noticeable.

Adopting a code spraying machine to spray and print the ink on a printing stock 1, so that the ink forms a plurality of designed pictures and texts 4 such as lines and the like; and enabling the pictures and texts 4 such as lines to traverse the edge steps 5, spraying and printing one end of the pictures and texts on the local thickening layer 301, and spraying and printing the other end of the pictures and texts on the printing stock 1, thereby forming the pictures and texts 4 such as the lines on the perforation.

Preferably, because the local thickening layer 301 of the ink foam has a large surface tension, the lines of perforation or the like 4 generate a large ink edge on the local thickening layer 301 along the saw teeth 6. Thus, the graphics 4 such as a joint line is diffused in the corner region 501 of the ridge step 5 to form the ink edge serration 6.

Preferably, in order to avoid the code/image (ink line) from breaking at the corner area of the edge step, as shown in fig. 8, the ink jet direction 7 of the nozzle is opposite to the corner area 501 of the edge step 5, and the ink is jetted to the corner area 501 of the edge step 5 according to the direction forming an angle of 45 to 75 degrees with the moving direction of the printing stock 1. In other words, the nozzle should not be perpendicular to the moving direction of the printing material 1 according to the conventional jet printing method, but should be inclined at an angle of 45-75 degrees with the paper feeding direction.

And collecting the pictures and texts 4 such as the joint lines and the like and ink formed by diffusion along the saw teeth 6, and storing the pictures and texts as anti-counterfeiting characteristic information and the codes 2 into a cloud database correspondingly to serve as record information for the public to check the authenticity.

Example two.

The adhesive sticker fragile paper (the paper thickness is preferably 0.15 mm) is adopted as the printing stock 1. As shown in fig. 3 and 4, a rectangular local reduction layer 302 having a depth of 0.1mm, a length of 12mm and a width of 8mm is laser-engraved beside the code 2 in the form of a two-dimensional code having a width of 16 mm. So as to form a sharp-touch edge step 5 between the substrate 1 and the local reduction layer 302.

Adopting a code spraying machine to spray and print the ink on a printing stock 1, so that the ink forms a plurality of designed pictures and texts 4 such as lines and the like; and the pictures and texts 4 such as lines and the like penetrate through the edge step 5, one end of the pictures and texts is sprayed and printed on the local reduction layer 302, and the other end of the pictures and texts is sprayed and printed on the printing stock 1, so that the pictures and texts 4 such as the lines and the like are formed.

Preferably, the laser engraved locally reduced layer 302 has a rough surface, so that the ink edge serrations 6 generated on the locally reduced layer 302 by the graphics 4 such as the lines of perforation are large. Thus, the graphics 4 such as a joint line is diffused in the corner region 501 of the ridge step 5 to form the ink edge serration 6.

And collecting the pictures and texts 4 such as the junction lines and the like and the characteristic information of ink formed by diffusion along the sawteeth 6, and correspondingly storing the pictures and texts and the ink as anti-counterfeiting characteristic information and the codes 2 into a cloud database to serve as record information for the public to check the authenticity.

Example three.

Preferably, as shown in fig. 5 and 6, the substrate 1 includes a surface layer 101 and an inner layer 102; a release agent layer 103 is arranged between the surface layer 101 and the inner layer 102, and the release agent layer 103 enables a peelable structure to be formed between the surface layer 101 and the inner layer 102, wherein the peelable structure is a common anti-peeling label structure and is not described herein again; the surface layer 101 has engraved holes to serve as a local reduction layer 302 to form ridge steps 5; the ink forming the picture and text 4 is sprayed and printed on the surface layer 1, wherein some ink is sprayed on the inner layer 102 through the engraved holes, and is diffused and deformed to form ink edge sawteeth 6 riding on the edge steps 5. The surface tension of the inner layer 102 is preferably greater than the surface tension of the skin layer 101.

Thus, the counterfeiter can only lift the surface layer 101 but not the inner layer 102, and the ink in the engraved hole is inevitably retained on the commodity along the saw teeth 6, so that the image-text characteristic information can not be completely recovered, thereby preventing the recovery and the counterfeiting.

The image and text 4 can be any characters, figures, lines and the like formed by ink.

In the invention, the ink code 2/image and text 4 with the ink edge sawteeth 5 is printed on the edge step 5 like a seam-added seal, so the name of the method is a seam-sawteeth anti-counterfeiting method.

The technical solution provided by the present invention is described in detail above. The principles and embodiments of the present invention are explained herein using specific examples, which are presented only to assist in understanding the method and its core concepts. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, several improvements and modifications can be made to the present invention, and these improvements and modifications also fall into the protection scope of the present invention.

Claims

1. A perforation sawtooth anti-counterfeiting method comprises printing ink codes/pictures and texts on a printing stock, and randomly deforming the edges of the ink codes/pictures and texts to generate personalized ink edge sawteeth; store black along sawtooth characteristic information to high in the clouds database to supply the public to use the cell-phone of shooing to examine true and false, its characterized in that:

firstly, arranging a local thickening layer or/and a local reducing layer, namely a local high layer and a local low layer, on a printing stock;

and thirdly, printing the ink codes/pictures and texts on the edge steps and forming ink edge sawteeth in the corner areas of the edge steps.

2. The perforation sawtooth anti-counterfeiting method according to claim 1, characterized in that: the height of the edge step is 0.02 mm-0.8 mm, or 0.05 mm-0.35 mm, or 0.1 mm-0.2 mm.

3. The perforation sawtooth anti-counterfeiting method according to claim 2, characterized in that: surface tension L of printing material₁Surface tension L with local high and low layers₂The ratio of k = L₁/ L₂K is not less than 1.2, or 1/k is not less than 1.2.

4. The perforation sawtooth anti-counterfeiting method according to claim 3, characterized in that: k is not less than 3, or 1/k is not less than 3.