CN107944528B - 3D anti-counterfeiting two-dimensional code, manufacturing method and application - Google Patents
3D anti-counterfeiting two-dimensional code, manufacturing method and application Download PDFInfo
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- CN107944528B CN107944528B CN201810047732.4A CN201810047732A CN107944528B CN 107944528 B CN107944528 B CN 107944528B CN 201810047732 A CN201810047732 A CN 201810047732A CN 107944528 B CN107944528 B CN 107944528B
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 11
- 239000000463 material Substances 0.000 claims abstract description 27
- 238000007650 screen-printing Methods 0.000 claims abstract description 11
- 238000007639 printing Methods 0.000 claims description 15
- 238000004806 packaging method and process Methods 0.000 claims description 11
- 238000000034 method Methods 0.000 claims description 7
- 239000002966 varnish Substances 0.000 claims 1
- 238000007645 offset printing Methods 0.000 abstract 1
- 230000003287 optical effect Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000004075 alteration Effects 0.000 description 2
- 238000003384 imaging method Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002537 cosmetic Substances 0.000 description 1
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- 229940079593 drug Drugs 0.000 description 1
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- 235000001968 nicotinic acid Nutrition 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
- G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
- G06K19/06009—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code with optically detectable marking
- G06K19/06037—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code with optically detectable marking multi-dimensional coding
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Abstract
The invention provides a 3D anti-counterfeiting two-dimensional code and a manufacturing method and application thereof. The anti-counterfeiting two-dimensional code comprises at least one first two-dimensional code and at least one second two-dimensional code which are overlapped, wherein the first two-dimensional code and the second two-dimensional code are composed of colored rectangular points and white rectangular points which are different in arrangement rule, and a cylindrical lens grating which covers the first two-dimensional code and the second two-dimensional code is identical in thickness at the position where the first two-dimensional code and the second two-dimensional code coincide with the colored rectangular points or the white rectangular points. A3D anti-counterfeiting two-dimensional code manufacturing method is characterized in that the 3D anti-counterfeiting two-dimensional code is manufactured into the 3D anti-counterfeiting two-dimensional code by adopting UV offset printing and silk-screen printing grating materials, and the 3D anti-counterfeiting two-dimensional code can be applied to anti-counterfeiting marks of products. According to the invention, the two-dimensional codes with different combinations are silk-screened on one auxiliary material, each two-dimensional code is encrypted, and each two-dimensional code can store rich product information, so that the anti-counterfeiting efficiency of the product information is realized.
Description
Technical Field
The invention relates to an anti-counterfeiting technology, in particular to a 3D anti-counterfeiting two-dimensional code, a manufacturing method and application.
Background
Counterfeiting of counterfeit goods endangers the personal interests of enterprises and consumers for a long time, and seriously affects the economic development of the country. To protect the interests of enterprises and consumers and ensure the economic and healthy development of markets, the countries and enterprises spend a great deal of manpower and financial resources for anti-counterfeiting and counterfeiting every year. However, the anti-counterfeiting technology and the anti-counterfeiting mode are single, so that common consumers lack anti-counterfeiting tools and other factors, and the anti-counterfeiting effect is not ideal. The two-dimensional code just makes up for the defect, has multiple anti-counterfeiting characteristics, and can be performed in a password anti-counterfeiting mode, a software encryption mode and the like, so that the anti-counterfeiting function is better achieved.
At present, a two-dimensional code anti-counterfeiting technology is adopted to mark a product, the two-dimensional code is printed or labeled on a product package, and a user can verify the authenticity of the product and obtain detailed information only by decoding and checking through a specified two-dimensional code anti-counterfeiting system or mobile phone software. However, this technique is limited to use of one type of two-dimensional code, and cannot be applied to a case where a plurality of two-dimensional codes are superimposed.
Disclosure of Invention
Accordingly, the main purpose of the present invention is to provide a 3D anti-counterfeit two-dimensional code, and a manufacturing method and application thereof.
In order to solve the above problems, the present invention provides a 3D anti-counterfeiting two-dimensional code, comprising
At least one first two-dimensional code and one second two-dimensional code which are overlapped, wherein the first two-dimensional code and the second two-dimensional code are composed of color rectangular points and white rectangular points with different arrangement rules, and
and the thickness of the cylindrical lens grating is the same at the position where the first two-dimensional code and the second two-dimensional code coincide with the color rectangular point or the white rectangular point.
Preferably, the 3D grating sheet is made of one material of PP, PVC, PET.
The lenticular grating is a sheet-like optical element composed of a plurality of parallel semicylindrical stripes, the back surface of which is a smooth plane.
The invention also provides a manufacturing method of the 3D anti-counterfeiting two-dimensional code, which comprises the following steps:
step 1) obtaining first two-dimensional codes and second two-dimensional codes with different combinations for standby;
step 2), performing image three-dimensional cross processing on the pictures of the first two-dimensional code and the second two-dimensional code obtained in the step 1) through computer software;
step 3) silk-screen printing the first two-dimensional code and the second two-dimensional code subjected to the image three-dimensional cross processing in the step 2) onto an auxiliary material between 4800 and 9600DPI by utilizing 3D software and printing dots to obtain a 3D combined two-dimensional code, and acquiring specific stripe densities of the first two-dimensional code and the second two-dimensional code by utilizing the 3D software;
step 4) converting the fringe density obtained in the step 3) into fringe grating density;
step 5), carrying out 4C+ spot color treatment on the 3D combined two-dimensional code obtained in the step 3) according to the stripe density;
step 6) preparing a cylindrical lens grating material for standby;
and 7) printing a mirror grating material on the 3D combined two-dimensional code processed by the 4C+ spot color in a silk screen printing mode according to the stripe grating density obtained in the step 4) to form the 3D anti-counterfeiting two-dimensional code.
Preferably, the auxiliary material is one of packaging paper, plastic, PCB board, PP, PVC, PET, packaging box and products formed by packaging paper, plastic, PCB board, PP, PVC, PET and packaging box materials.
Preferably, in the step 7), the gloss oil diffusivity is 1 inch 180-205 lines.
Preferably, in the step 7), the gloss oil diffusivity is 190-200 lines of 1 inch.
Preferably, in the step 3), the printing dots are between 5600 and 9600 DPI.
Preferably, in the step 3), the printing dots are between 6000 and 9000 DPI.
The invention also provides an application, comprising the 3D anti-counterfeiting two-dimensional code, and being applied to anti-counterfeiting marks of products.
The beneficial effects of the invention are as follows:
according to the invention, the two-dimensional codes with different combinations can be subjected to image three-dimensional cross processing, silk screen printing is carried out on one auxiliary material, each two-dimensional code is subjected to encryption processing, and can store rich product information, so that the product information is not easy to copy and steal through encryption, is released from authorities of enterprises, is regular and professional in inquiry channels, and realizes the anti-counterfeiting high efficiency of the product information.
Drawings
For ease of illustration, the invention is described in detail by the following detailed description and the accompanying drawings.
FIG. 1 is a schematic diagram of a lenticular grating according to the present invention;
FIG. 2 is a schematic view of the focal length of the present invention;
FIG. 3 is a schematic diagram of a combined two-dimensional code structure according to the present invention;
fig. 4 is a schematic structural diagram of a 3D anti-counterfeiting two-dimensional code according to the present invention.
Detailed Description
The present invention will now be described in detail with reference to the drawings and the specific embodiments thereof, wherein the exemplary embodiments and descriptions of the present invention are provided for illustration of the invention and are not intended to be limiting.
The stereo imaging method of the cylindrical lens grating applies the principle of bionics, the planar picture is subjected to image stereo cross processing through computer software, then the cylindrical lens grating is covered, and the light emitted by each image point on the planar image can only be emitted in a specific direction instead of being emitted to the periphery through the refraction action of the cylindrical lens grating on the light, so that each synchronous image with aberration is separated into the left eye and the right eye of a person to generate aberration, and a stereo image is formed. The lenticular grating is a plate-like optical element composed of a plurality of parallel semicylindrical stripes, and the back surface of the optical element is a smooth plane. With reference to figure 1 of the drawings,
d the distance between adjacent column stripes, simply referred to as pitch,
f, the refractive focal length is equal to the thickness of the material
n: the refractive index of the material grating is generally between 1.5 and 1.51 (n.apprxeq.1.5-1.51),
r radius of curvature (pitch two-point refractive cross point) of cylindrical mirror (stripe)
Referring to fig. 2, by the focal length formula: r=f (n-1)/n, f=3r, (material thickness is 3 times of cylindrical curvature radius), the stripe curvature formed by regular triangle is the most stable grating curvature according to refraction principle, the technical curvature of silk screen printing stripe-shaped elements to PP or PET material is processed completely according to regular triangle. According to the mathematical cosine law, a2+b2=c2, when we know the material thickness, we can calculate the radius of curvature, the height of curvature (the height of the screen ink over the planar material), knowing the radius of curvature, according to the stereoscopic imaging principle, 25.4/d=striped grating density (25.4 represents how many lines are 1 inch). Examples: with 0.4MM PET material, the radius of curvature is 0.133MM (1/3 focal length), the pitch d is 1.333MM, and the curvature height is 0.017MM. The grating density is 190.9 lines.
Referring to FIG. 3, the invention provides a 3D anti-counterfeiting two-dimensional code, a manufacturing method and application thereof, comprising
The invention provides a 3D anti-counterfeiting two-dimensional code, which comprises
At least one first two-dimensional code and one second two-dimensional code which are overlapped, wherein the first two-dimensional code and the second two-dimensional code are composed of color rectangular points and white rectangular points with different arrangement rules, and
and the thickness of the cylindrical lens grating is the same at the position where the first two-dimensional code and the second two-dimensional code coincide with the color rectangular point or the white rectangular point.
Preferably, the 3D grating sheet is made of one material of PP, PVC, PET.
The lenticular grating is a sheet-like optical element composed of a plurality of parallel semicylindrical stripes, the back surface of which is a smooth plane.
The invention also provides a manufacturing method of the 3D anti-counterfeiting two-dimensional code, which comprises the following steps:
step 1) obtaining first two-dimensional codes and second two-dimensional codes with different combinations for standby;
step 2), performing image three-dimensional cross processing on the pictures of the first two-dimensional code and the second two-dimensional code obtained in the step 1) through computer software;
step 3) silk-screen printing the first two-dimensional code and the second two-dimensional code subjected to the image three-dimensional cross processing in the step 2) onto an auxiliary material between 4800 and 9600DPI by utilizing 3D software and printing dots to obtain a 3D combined two-dimensional code, and acquiring specific stripe densities of the first two-dimensional code and the second two-dimensional code by utilizing the 3D software;
step 4) converting the fringe density obtained in the step 3) into fringe grating density;
step 5), carrying out 4C+ spot color treatment on the 3D combined two-dimensional code obtained in the step 3) according to the stripe density;
step 6) preparing a cylindrical lens grating material for standby;
and 7) printing a mirror grating material on the 3D combined two-dimensional code processed by the 4C+ spot color in a silk screen printing mode according to the stripe grating density obtained in the step 4) to form the 3D anti-counterfeiting two-dimensional code.
Preferably, the auxiliary material is one of packaging paper, plastic, PCB board, PP, PVC, PET, packaging box and products formed by packaging paper, plastic, PCB board, PP, PVC, PET and packaging box materials.
Preferably, in the step 7), the gloss oil diffusivity is 1 inch 180-205 lines.
Preferably, in the step 7), the gloss oil diffusivity is 190-200 lines of 1 inch.
Preferably, in the step 3), the printing dots are between 5600 and 9600 DPI.
Preferably, in the step 3), the printing dots are between 6000 and 9000 DPI.
The invention also provides an application, comprising the 3D anti-counterfeiting two-dimensional code, and being applied to anti-counterfeiting marks of products.
According to the invention, the 3D grating sheet, printing and 4C+ spot color are adopted for presentation, the 3D software technology and printing dots are used for preparing two groups of text content and picture content in 4800-9600 DPI, different information can be swept out by changing the edge angle of the 3D grating into two groups of two-dimensional codes, different patterns can be changed while the two-dimensional codes are changed, for example, the red two-dimensional codes can be changed into black two-dimensional codes, and the contents are different.
Referring to fig. 3, in fig. 3, a reference numeral 1 represents a first two-dimensional code, a reference numeral 2 represents a second two-dimensional code, and a reference numeral 3 represents a combination portion of the first two-dimensional code and the second two-dimensional code.
In fig. 4, the number 4 is a 3D combined two-dimensional code, and the number 5 is a lenticular grating.
The invention can be widely used for packaging high-grade cosmetics, medicines, health products, collectors, luxury products, bank cards, game cards, high-grade anti-counterfeiting tickets and the like which are intelligent high-grade brands.
The invention has the advantages that: (1) the anti-counterfeiting difficulty (2) is improved, the environment is protected, the energy is saved, the existing product labels, specifications and date cards can be replaced, and all contents can be written in the 3D anti-counterfeiting variable data two-dimensional code.
While the basic principles and main features of the present invention and advantages of the present invention have been shown and described, it will be understood by those skilled in the art that the present invention is not limited by the foregoing embodiments, which are described in the foregoing specification merely illustrate the principles of the present invention, and various changes and modifications may be made therein without departing from the spirit and scope of the invention, which is defined in the appended claims and their equivalents.
Claims (7)
1. The manufacturing method of the 3D anti-counterfeiting two-dimensional code is characterized by comprising the following steps of:
step 1) obtaining first two-dimensional codes and second two-dimensional codes with different combinations for standby;
step 2), performing image three-dimensional cross processing on the pictures of the first two-dimensional code and the second two-dimensional code obtained in the step 1) through computer software;
step 3) silk-screen printing the first two-dimensional code and the second two-dimensional code subjected to the image three-dimensional cross processing in the step 2) onto an auxiliary material between 4800 DPI and 9600DPI by utilizing 3D software and printing dots to obtain a 3D combined two-dimensional code, and acquiring specific stripe densities of the first two-dimensional code and the second two-dimensional code by utilizing the 3D software;
step 4) converting the fringe density obtained in the step 3) into fringe grating density;
step 5), 4C+ spot color printing treatment is carried out on the 3D combined two-dimensional code obtained in the step 3) according to the stripe density;
step 6) preparing a cylindrical lens grating material for standby;
and 7) printing a cylindrical lens grating material on the 3D combined two-dimensional code processed by the 4C+ spot color in a silk screen printing mode according to the stripe grating density obtained in the step 4) to form the 3D anti-counterfeiting two-dimensional code.
2. The method of claim 1, wherein the auxiliary material is one of a wrapper, a PC board, PP, PVC, PET, a packaging box, and a product comprised of wrapper, PCB board, PP, PVC, PET, packaging box material.
3. The method of claim 1, wherein the gloss oil diffusivity is from 1 inch 180 to 205 lines when silk screened in step 7).
4. The method of claim 1, wherein the step 7) is performed by screen printing, and the varnish diffusivity is between 190 and 200 inches.
5. The method of claim 1, wherein the printing dots are between 4800 and 9600DPI when silk screened in step 3).
6. The method according to claim 1, wherein the printing dots are between 6000 and 9000DPI when step 3) screen printing.
7. An application, comprising the 3D anti-counterfeiting two-dimensional code prepared by the method for manufacturing the 3D anti-counterfeiting two-dimensional code according to any one of claims 1 to 6, and being applied to anti-counterfeiting marks of products.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810047732.4A CN107944528B (en) | 2018-01-18 | 2018-01-18 | 3D anti-counterfeiting two-dimensional code, manufacturing method and application |
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| CN112257483A (en) * | 2020-11-04 | 2021-01-22 | 无锡职业技术学院 | Three-dimensional code of trapezoidal convex structure and reading method |
| CN113103795A (en) * | 2021-03-17 | 2021-07-13 | 昆明瑞丰印刷有限公司 | Novel UV (ultraviolet) spray printing process for color two-dimensional code |
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2018
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Address after: Building 1, No.1, Yuyuan 1st Road, Beian village, Huangjiang Town, Dongguan City, Guangdong Province 523000 Applicant after: DONGGUAN DOOHOO PRINTING Co.,Ltd. Address before: The gang Ling Huang Town money second Industrial Zone East Ring street 523000 Guangdong city of Dongguan province No. 6 Applicant before: DONGGUAN DOOHOO PRINTING Co.,Ltd. |
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