CN111452528A - Printing method and device of anti-counterfeiting two-dimensional code with printing height - Google Patents
Printing method and device of anti-counterfeiting two-dimensional code with printing height Download PDFInfo
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- CN111452528A CN111452528A CN202010223865.XA CN202010223865A CN111452528A CN 111452528 A CN111452528 A CN 111452528A CN 202010223865 A CN202010223865 A CN 202010223865A CN 111452528 A CN111452528 A CN 111452528A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M3/00—Printing processes to produce particular kinds of printed work, e.g. patterns
- B41M3/14—Security printing
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F17/00—Printing apparatus or machines of special types or for particular purposes, not otherwise provided for
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M3/00—Printing processes to produce particular kinds of printed work, e.g. patterns
- B41M3/14—Security printing
- B41M3/144—Security printing using fluorescent, luminescent or iridescent effects
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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
Abstract
The invention relates to a printing method and a device of an anti-counterfeiting two-dimensional code with printing height, belonging to the technical field of anti-counterfeiting two-dimensional codes, wherein the printing method comprises the following steps: generating a plane two-dimensional code according to the anti-counterfeiting information of the product; setting the printing height information of the planar two-dimensional code according to a preset rule; setting printing color information of the planar two-dimensional code according to a preset rule; and printing the anti-counterfeiting two-dimensional code with the printing height on a substrate according to the plane two-dimensional code, the printing height information and the printing color information, wherein the preset rule comprises a preset corresponding relation among the substrate, the printing height information, the printing color information and the anti-counterfeiting information. The anti-counterfeiting two-dimensional code printed by the method has specific printing height and printing color, the reproducibility of the anti-counterfeiting two-dimensional code is greatly reduced, and the effect of identifying the authenticity of a product is improved.
Description
Technical Field
The invention relates to the technical field of anti-counterfeiting two-dimensional codes, in particular to a method and a device for printing an anti-counterfeiting two-dimensional code with a printing height.
Background
At present that two-dimensional code anti-fake technology developed rapidly, more and more producers adopt two-dimensional code anti-fake technology to make the sign for the product, and the producer is usually with the anti-fake two-dimensional code printing that contains product anti-fake information on the outer package of product, and user or producer can decode the inspection through appointed two-dimensional code anti-fake system, obtain the detailed information of product, can verify the product true and false.
The existing Chinese patent application with the reference publication number of CN105538896B discloses a printing method and a device for an anti-counterfeiting two-dimensional code with printing height, wherein the method comprises the following steps: selecting a printing height from a preset height range; generating a three-dimensional anti-counterfeiting image according to the printing height and the anti-counterfeiting information of the product; and printing on a printing substrate corresponding to the product in a three-dimensional printing mode according to the three-dimensional anti-counterfeiting image and the preset printing height to obtain the anti-counterfeiting two-dimensional code with the printing height. The printing height is increased when the anti-counterfeiting two-dimensional code is printed, so that the finally printed anti-counterfeiting code is the three-dimensional anti-counterfeiting code, the measurement difficulty of the printing height of the generated three-dimensional anti-counterfeiting code is very high, the reproducibility of the three-dimensional anti-counterfeiting code is reduced, malicious merchants are difficult to print the anti-counterfeiting code with the same height as that of genuine manufacturers, and the accuracy of identifying the authenticity of products through the height information of the anti-counterfeiting code is improved.
The anti-counterfeiting two-dimensional code increases the measurement difficulty by increasing the printing height, so that the reproducibility of the anti-counterfeiting two-dimensional code is reduced. Although this anti-fake two-dimensional code printing height's the measurement degree of difficulty is great, the genuine trade company adopts certain measuring equipment to measure the printing height, then the person of imitating also can use same equipment to measure the printing height of this three-dimensional anti-fake two-dimensional code, and the person of imitating measures behind the printing height of this anti-fake two-dimensional code, still can imitate this two-dimensional code to print the two-dimensional code of imitating on the imitation product, the influence is through the accuracy of two-dimensional code authentication product true and false.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide the printing method of the anti-counterfeiting two-dimensional code with the printing height, the printed anti-counterfeiting two-dimensional code has the specific printing height and printing color, and is difficult to copy through modes of copying, photographing, photocopying and the like, so that the reproducibility of the anti-counterfeiting two-dimensional code is greatly reduced, and the effect of identifying the authenticity of a product is improved.
The technical purpose of the invention is realized by the following technical scheme:
a printing method of an anti-counterfeiting two-dimensional code with a printing height comprises the following steps:
generating a plane two-dimensional code according to the anti-counterfeiting information of the product;
setting the printing height information of the planar two-dimensional code according to a preset rule;
setting printing color information of the planar two-dimensional code according to a preset rule;
printing the anti-counterfeiting two-dimensional code with the printing height on a substrate according to the plane two-dimensional code, the printing height information and the printing color information,
the preset rule comprises a preset corresponding relation among the substrate, the printing height information, the printing color information and the anti-counterfeiting information.
The present invention in a preferred example may be further configured to: the setting of the printing height information of the planar two-dimensional code according to the preset rule includes:
dividing the planar two-dimensional code into N height printing areas according to a preset rule, wherein N is an integer greater than or equal to 1;
and randomly selecting N height values in a preset height range as the printing height of each height printing area, wherein N is an integer greater than or equal to 1, and N is less than or equal to N.
The present invention in a preferred example may be further configured to: the planar two-dimensional code is divided into N height printing regions according to a preset rule, the area of each height printing region is more than 5% of the total area of the planar two-dimensional code, and N may be an integer less than or equal to 20, preferably an integer less than or equal to 10, and more preferably an integer less than or equal to 5.
The present invention in a preferred example may be further configured to: and when n is more than or equal to 2, the absolute value of the height difference between any two of the n height values is more than 5% of the average value of the n height values.
The present invention in a preferred example may be further configured to: the setting of the printing color information of the planar two-dimensional code according to the preset rule includes:
dividing the planar two-dimensional code into M color printing areas according to a preset rule, wherein M is an integer greater than or equal to 1;
m colors are randomly selected in a preset color range to serve as printing colors of each color printing area, wherein M is an integer larger than or equal to 1, and M is smaller than or equal to M.
The present invention in a preferred example may be further configured to: the planar two-dimensional code is divided into M color printing regions according to a preset rule, the area of each color printing region is more than 5% of the total area of the planar two-dimensional code, and M may be an integer less than or equal to 20, preferably an integer less than or equal to 10, and more preferably an integer less than or equal to 5.
The present invention in a preferred example may be further configured to: and when m is larger than or equal to 2, the color difference value delta E between any two of the m colors is more than 10.
The present invention in a preferred example may be further configured to: the brightness values of the m colors are respectively less than the brightness value of the substrate on which the planar two-dimensional code is printed by more than 20.
The present invention in a preferred example may be further configured to: the basis according to plane two-dimensional code, printing height information and printing color information are printed on the substrate anti-fake two-dimensional code that has printing height includes:
converting the printing color information into CMYK values of all pixel points in the planar two-dimensional code so as to determine the proportion of four-color printing ink used for printing all the pixel points;
determining the printing height of each pixel point in the planar two-dimensional code according to the printing height information; and
and printing the anti-counterfeiting two-dimensional code with the printing height on a substrate according to the proportion and the printing height of the four-color ink used by each pixel point.
The present invention in a preferred example may be further configured to: after the printing height of each pixel point in the planar two-dimensional code is determined according to the printing height information, the printing method according to the present invention may further include:
and determining the number of times of superposition printing of each pixel point according to the printing height of each pixel point.
The present invention in a preferred example may be further configured to: before the anti-counterfeiting two-dimensional code with the printing height is printed on the substrate according to the proportion and the printing height of the four-color ink used by each pixel point, the printing method according to the invention can further comprise the following steps:
and adding a colorless fluorescent agent into any ink in the four-color ink randomly according to a preset rule, wherein the preset rule further comprises a preset corresponding relation between fluorescent agent adding information and the substrate, the printing height information, the printing color information and the anti-counterfeiting information.
Object two of the present invention: there is provided a printing apparatus for an anti-counterfeit two-dimensional code having a printing height, the printing apparatus including:
the generating unit is used for generating a plane two-dimensional code according to the anti-counterfeiting information of the product;
the height setting unit is used for setting the printing height information of the planar two-dimensional code according to a preset rule table;
the color setting unit is used for setting the printing color information of the planar two-dimensional code according to a preset rule table; and
the printing unit is used for printing the anti-counterfeiting two-dimensional code with the printing height on a substrate according to the plane two-dimensional code, the printing height information and the printing color information,
the preset rule table comprises preset corresponding relations among the substrate, the printing height information, the printing color information and the anti-counterfeiting information.
The present invention in a preferred example may be further configured to: the height setting unit includes:
the height partition unit is used for dividing the planar two-dimensional code into N height printing areas according to a preset rule table, wherein N is an integer greater than or equal to 1; and
and the height selecting unit is used for randomly selecting N height values in a preset height range as the printing height of each height printing area, wherein N is an integer greater than or equal to 1, and N is less than or equal to N.
Further, the height partition unit may be further configured to set the area of each of the height printing regions to be 5% or more of the total area of the planar two-dimensional code, and may be configured to set N to an integer of 20 or less, preferably an integer of 10 or less, and more preferably an integer of 5 or less.
Further, the height selecting unit may be further configured to set an absolute value of a height difference between any two of the n height values to 5% or more of an average value of the n height values when n ≧ 2.
The present invention in a preferred example may be further configured to: the color setting unit includes:
the color partitioning unit is used for dividing the planar two-dimensional code into M color printing areas according to a preset rule table, wherein M is an integer greater than or equal to 1; and
and the color selection unit is used for randomly selecting M colors in a preset color range as the printing colors of each color printing area, wherein M is an integer greater than or equal to 1, and M is less than or equal to M.
Further, the color partition unit may be further configured to set the area of each of the color printing regions to be 5% or more of the total area of the planar two-dimensional code, and may be configured to set M to an integer of 20 or less, preferably an integer of 10 or less, and more preferably an integer of 5 or less.
Further, the color selection unit may be further configured to set a color difference value Δ E between any two of the m colors to 10 or more when m ≧ 2.
Further, the color selection unit can be used for setting the brightness values of the m colors to be respectively less than the brightness value of the substrate on which the planar two-dimensional code is printed by more than 20.
The present invention in a preferred example may be further configured to: the printing unit includes:
the color conversion unit is used for converting the printing color information into CMYK values of all pixel points in the planar two-dimensional code so as to determine the proportion of four-color ink used for printing all the pixel points;
the height setting unit is used for setting the printing height of each pixel point in the planar two-dimensional code according to the printing height information; and
and the printing unit is used for printing the anti-counterfeiting two-dimensional code with the printing height on the substrate according to the proportion and the printing height of the four-color ink used by each pixel point.
Further, the height setting unit may be further configured to determine the number of times of the superimposed printing of each pixel point according to the printing height of each pixel point.
The present invention in a preferred example may be further configured to: the printing unit further includes:
and the fluorescent agent selecting unit is used for randomly adding a colorless fluorescent agent into any ink in the four-color ink according to a preset rule table before the printing unit prints the anti-counterfeiting two-dimensional code with the printing height on the substrate according to the proportion and the printing height of the four-color ink used by each pixel point, wherein the preset rule table further comprises fluorescent agent adding information and preset corresponding relations among the substrate, the printing height information, the printing color information and the anti-counterfeiting information.
In summary, the invention at least includes the following beneficial technical effects:
1. according to the anti-counterfeiting two-dimensional code provided by the invention, as the anti-counterfeiting two-dimensional code has a specific printing height, the anti-counterfeiting two-dimensional code is of a three-dimensional structure, the reproducibility of the anti-counterfeiting two-dimensional code is reduced, the condition that an illegal merchant copies a genuine two-dimensional code and prints the genuine two-dimensional code on a counterfeit product is reduced, and the effect of identifying the authenticity of the product through the two-dimensional code is improved; meanwhile, the anti-counterfeiting two-dimensional code of the invention is provided with different colors in different color printing areas, thus further increasing the copying difficulty of the anti-counterfeiting two-dimensional code and greatly reducing the copying performance of the anti-counterfeiting two-dimensional code.
2. The substrate, the anti-counterfeiting information, the printing height and height printing area, the printing color and color printing area and even the fluorescent distribution area in the invention have a certain corresponding relationship, and a preset rule table is established according to the corresponding relationship, and the corresponding relationship is only mastered in the hands of a genuine merchant, and under the condition that counterfeiters do not know the corresponding relationship, the counterfeited anti-counterfeiting two-dimensional code hardly conforms to the preset rule, so that the reproducibility of the two-dimensional code is greatly reduced.
3. The anti-counterfeiting two-dimensional code relates to a plurality of variable values such as the substrate, anti-counterfeiting information, printing height and height printing area, printing color and color printing area, fluorescence distribution area and the like, and counterfeiters are more difficult to master corresponding change rules, namely preset rules and have great difficulty in decoding according to the anti-counterfeiting two-dimensional code with printing height. Therefore, the anti-counterfeiting two-dimensional code with the printing height has extremely high anti-counterfeiting performance and extremely high counterfeiting difficulty.
Drawings
Fig. 1 is a schematic flow chart of a printing method of an anti-counterfeiting two-dimensional code with a printing height according to an embodiment of the invention;
fig. 2 is a schematic structural diagram of a printing apparatus for printing a two-dimensional code having a height of security according to another embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Example 1
Referring to fig. 1, an embodiment of the present invention provides a printing method for an anti-counterfeit two-dimensional code with a printing height, where the printing method includes the following steps:
step 101: and generating a plane two-dimensional code according to the anti-counterfeiting information of the product.
In the invention, the planar two-dimensional code is generated according to the anti-counterfeiting information of the product. The planar two-dimensional Code (QRCode) can adopt two-dimensional Code systems such as PDF417, Code16K, DataMatrix, MaxiCode and the like, and conforms to international standard ISO/IEC 18004: 2000, automatic identification and data acquisition technology-bar code symbol technical specification-QR code. In addition, the planar two-dimensional code can also conform to the regulations of national standards SJ/T11349-2006 two-dimensional bar code grid matrix code and SJ/T11350-2006 two-dimensional bar code compact matrix code. The present invention can select any code system and standard according to the need, and is not limited in particular.
Step 102: and setting the printing height information of the planar two-dimensional code according to a preset rule.
In the present invention, setting the printing height information of the planar two-dimensional code according to a preset rule includes:
(1) dividing the planar two-dimensional code into N height printing areas according to a preset rule, wherein N is a whole number which is more than or equal to 1
And (4) counting.
In the invention, the number N of the height printed regions is greater than or equal to 1, which indicates that the planar two-dimensional code may be printed at one height (when N is equal to 1) as a whole, or may have different printed heights in different regions (when N is greater than 1).
Further, when N is greater than 1, the planar two-dimensional code is divided into N height printing regions according to a preset rule, the area of each height printing region may be greater than or equal to 5% of the total area of the planar two-dimensional code, and N may be an integer less than or equal to 20, preferably an integer less than or equal to 10, and more preferably an integer less than or equal to 5. In the present invention, in order to avoid the relative area of the printing region of a certain height being too small to be printed and detected, it is set to be 5% or more of the total area of the planar two-dimensional code. In addition, from the viewpoint of practicality, the number N of the height printing regions is further set to an integer of 20 or less for the convenience of industrial printing.
Furthermore, the highly printed regions may exhibit any regular or irregular geometric shape. The highly printed regions are preferably any regular geometric shape from the viewpoint of easy editing, setting and printing, and are preferably any irregular geometric shape from the viewpoint of anti-counterfeiting effect and difficulty in deciphering, and the geometric shape of each highly printed region can be selected by those skilled in the art according to specific needs, which is not further limited by the present invention.
(2) Randomly selecting n height values within a preset height range as printing heights of the printing areas with the respective heights
Wherein N is an integer greater than or equal to 1, and N is less than or equal to N.
When the number N of printing heights is equal to N, it indicates that different height printed regions may have different printing heights, and when N is less than N, it indicates that individual height printed regions may have the same printing height therebetween. Of course, in practical applications, it is preferred that adjacent height printed areas have different printed heights.
Further, when n is larger than or equal to 2, the absolute value of the height difference between any two of the n height values is more than 5% of the average value of the n height values, so that the printing heights are different enough, the influence of slight errors generated on the heights in the actual printing process can be eliminated, and misjudgment is avoided.
In the present invention, the preset height range is in a micron scale, and the preset height range may be, for example, 0 to 120 μm, 0 to 360 μm, 0 to 720 μm, 0 to 1000 μm, and the like, but the preset height range is not specifically limited in the embodiment of the present invention, and may be set according to specific requirements in practical application, such as the size of a product, the position where the anti-counterfeit two-dimensional code is located, and the like. However, it should be noted that the smaller the set height range is, the less and smaller the printing height can be selected when the anti-counterfeiting two-dimensional code is printed, so that after the anti-counterfeiting two-dimensional code is printed, the difficulty in accurately measuring the printing height of the anti-counterfeiting two-dimensional code is increased, the reproducibility of the anti-counterfeiting two-dimensional code can be reduced, and the accuracy in identifying the authenticity of a product is improved.
Specifically, when the printing height is selected, a preset height range may be set, and N height values are randomly selected from the preset height range as the printing height, where N is an integer greater than or equal to 1, and N is less than or equal to N. For example, setting n to 2, setting the preset height range to 10-40 μm, randomly selecting 2 numbers from 10-40 μm as the printing height, such as selecting numbers of 15.3 and 23.5, and then printing heights of 15.3 μm and 23.5 μm.
Step 103: and setting the printing color information of the planar two-dimensional code according to a preset rule.
In the present invention, the setting of the printing color information of the planar two-dimensional code according to a preset rule includes:
(1) dividing the planar two-dimensional code into M color printing areas according to a preset rule, wherein M is a whole number which is more than or equal to 1
And (4) counting.
In the present invention, similarly, the number M of the color printed regions is greater than or equal to 1, which indicates that the planar two-dimensional code may adopt one printing color as a whole (when M is equal to 1), or may have different printing colors in different regions (when M is greater than 1).
Further, when M is greater than 1, the planar two-dimensional code is divided into M color printing regions according to a preset rule, an area of each color printing region may be greater than or equal to 5% of a total area of the planar two-dimensional code, and M may be an integer less than or equal to 20, preferably an integer less than or equal to 10, and more preferably an integer less than or equal to 5. In the present invention, in order to avoid that the relative area of a certain color printed region is too small to be printed and detected, the relative area is set to be more than 5% of the total area of the planar two-dimensional code. In addition, from the viewpoint of practicality, the number M of the color printing regions is further set to an integer of 20 or less for the convenience of industrial printing. Also, the number, position and/or area of the color-printed regions may be the same as, partially the same as or different from the number, position and/or area of the height-printed regions.
Furthermore, the color-printed region may also be represented by any regular or irregular geometric shape. The color printing region is preferably any regular geometric shape from the viewpoint of easy editing, setting and printing, and is preferably any irregular geometric shape from the viewpoint of anti-counterfeiting effect and difficulty in deciphering, and a person skilled in the art can select the geometric shape of each color printing region as appropriate according to specific needs, which is not further limited by the present invention.
(2) Randomly selecting m colors within a preset color range as printing colors of each color printing region, wherein
M is an integer greater than or equal to 1, and M is less than or equal to M.
When the kind M of the printing color is equal to M, it indicates that different color printing regions may have different printing colors, and when M is less than M, it indicates that individual color printing regions may have the same printing color therebetween. Of course, in practice it is preferred that adjacent colour printed areas have different printed colours.
Further, when m is larger than or equal to 2, the color difference value delta E between any two of the m colors is more than 10.
In the present invention, each color can be expressed by adopting L ab color mode (L value, a value and b value), and in order to eliminate the influence of color error generated by ink color register in the actual printing process and avoid misjudgment, the color difference value Δ E between any two of the m colors is set to be more than 10, which is helpful for sufficient difference between each printed color, and when the difference between each printed color is large enough, the generated planar two-dimensional code is convenient to be accurately identified.
Wherein the content of the first and second substances,
Δ L is the difference between the L values of the two colors;
Δ a is the difference between the values of a for the two colors; and
Δ b is the difference between the b values of the two colors.
In order to further facilitate the identification of the planar two-dimensional code, the brightness values of the m colors are respectively set to be more than 20 times smaller than the brightness value of the substrate on which the planar two-dimensional code is printed. Therefore, the reflectivity of the color of the plane two-dimensional code and the reflectivity of the substrate have obvious difference, so that the plane two-dimensional code can be conveniently identified and detected by an instrument, and the anti-counterfeiting information contained in the plane two-dimensional code can be smoothly read.
Step 104: printing on a substrate according to the two-dimensional plane code, the printing height information and the printing color information
Have anti-fake two-dimensional code of printing height.
In the invention, the printing of the anti-counterfeiting two-dimensional code with the printing height on a substrate according to the plane two-dimensional code, the printing height information and the printing color information comprises the following steps:
(1) converting the printing color information into CMYK values of all pixel points in the planar two-dimensional code to determine printing
And the proportion of the four-color printing ink used by each pixel point.
In the invention, the L ab mode is usually adopted to represent the printed colors when setting the printed color information of the planar two-dimensional code, because the L ab mode of the colors does not depend on light or pigment, is a color mode which is determined by CIE organization and theoretically comprises all colors which can be seen by human eyes, and is convenient for technicians to edit the colors, and in the process of converting the L ab mode of the colors into CMYK mode, the colors are not lost or replaced, thereby being convenient for printout.
In addition, the four color inks selected may conform to ISO2846-1:2017 standards. The proportion of the used four-color ink is determined according to the CMYK value of each pixel point, and the printing color corresponding to each pixel point can be given during printing.
(2) And determining the printing height of each pixel point in the planar two-dimensional code according to the printing height information.
Further, after the (2) determining the printing height of each pixel point in the planar two-dimensional code according to the printing height information, the printing method according to the present invention may further include:determining the printing height according to the pixel points Determining the number of times of the superposition printing of each pixel point. In the invention, the specific printing process can be adopted to print the pixel points with different heights and colors on the substrate so as to obtain the anti-counterfeiting two-dimensional code with the printing height according to the invention, and the conventional printing technology can also be adopted to print the anti-counterfeiting two-dimensional code with the printing height according to the invention. By using the conventional printing techniqueIn the art, such as relief printing, intaglio printing, screen printing, inkjet printing, etc., the printing height obtained by a single printing may be generally uniform or may not reach the required printing height, which requires performing repeated printing for two or more times on the required pixel points to give the printing height corresponding to each pixel point by overlapping printing inks.
(3) Printing the color ink on the substrate according to the proportion and the printing height of the four-color ink used by each pixel point
And manufacturing the anti-counterfeiting two-dimensional code with high degree.
In the present invention, the printing height information may include height printing regions and printing heights of the respective height printing regions, and the printing color information may include color printing regions and printing colors of the respective color printing regions. Therefore, each pixel point in the planar two-dimensional code is uniformly distributed with the printing height corresponding to the printing height area and the printing color corresponding to the color printing area, and the anti-counterfeiting two-dimensional code data with the printing height can be obtained by printing according to the printing heights and the printing colors.
In the invention, before the anti-counterfeiting two-dimensional code with the printing height is printed on the substrate according to the proportion and the printing height of the four-color ink used by each pixel point, the printing method according to the invention can further comprise the following steps:
adding a colorless fluorescent agent into any ink in the four-color ink randomly according to a preset rule,the preset rule further comprises a preset corresponding relation between the fluorescent agent adding information and the substrate, the printing height information, the printing color information and the anti-counterfeiting information.
In the invention, the colorless fluorescent agent is added into the ink, so that the CMYK value of the ink cannot be obviously changed, and the normal color display of the printed anti-counterfeiting two-dimensional code cannot be influenced. However, the pixel points printed by the ink containing the fluorescent agent are excited to emit visible light (200-400 nm) under the irradiation of ultraviolet light (200-400 nm), so that the pixel points are observed. Therefore, at least part of the area in the anti-counterfeiting two-dimensional code with the printing height can show a fluorescence effect due to the existence of the fluorescent agent, and the anti-counterfeiting effect is further improved.
Therefore, in the present invention, the preset rule may be a corresponding relationship among the substrate, the anti-counterfeit information, the printing height and height printing area, the printing color and color printing area, and even the fluorescent distribution area, and a preset rule table may be established according to a corresponding relationship among the substrate, the anti-counterfeit information, the printing height and height printing area, the printing color and color printing area, and even the fluorescent distribution area, for example, according to an E-R model, but the present invention may also adopt any other suitable preset rule, and the present invention is not particularly limited.
When the genuine and counterfeit products in the market are randomly checked by the certified product merchants, the anti-counterfeiting two-dimensional codes corresponding to the products are scanned through the scanning equipment, anti-counterfeiting information is obtained from the anti-counterfeiting two-dimensional codes, information such as printing height, height printing area, printing color, color printing area and fluorescence distribution area corresponding to the anti-counterfeiting two-dimensional codes is measured, then the measured variable values are compared with the pre-established rule table, and only if the acquired variable values meet the corresponding relation (namely the pre-established rule) on the pre-established rule table, the two-dimensional codes can be matched with the information in the pre-established rule table, and then the two-dimensional codes can be proved to be genuine. The reason is that the corresponding relation is only mastered in the hand of the genuine merchant, and the counterfeiter can hardly accord with the preset rule by blindly imitating the anti-counterfeiting two-dimensional code with the printing height under the condition that the counterfeiter does not know the corresponding relation, and the counterfeiter can be immediately detached and penetrated when the genuine merchant detects the authenticity of the commodity. Moreover, the variable values related to the preset rule are various, such as the substrate, the anti-counterfeiting information, the printing height and the printing height area, the printing color and the printing color area, even the fluorescent distribution area and the like, so that a counterfeiter can hardly master the corresponding change rule according to the anti-counterfeiting two-dimensional code with the printing height, and the decoding difficulty is also great. Therefore, the anti-counterfeiting two-dimensional code with the printing height has extremely high anti-counterfeiting performance and extremely high counterfeiting difficulty.
In addition, according to the printing method of the anti-counterfeiting two-dimensional code, the information of the printing height, the printing height printing area, the printing color, the color printing area and the fluorescence distribution area corresponding to the anti-counterfeiting two-dimensional code on each genuine product package is different, even if a counterfeiter measures the variable values corresponding to the anti-counterfeiting information, the printing height and height printing area, the printing color and color printing area and even the fluorescence distribution area in the anti-counterfeiting two-dimensional code by using a scanning device, the counterfeiter can only copy the anti-counterfeiting two-dimensional codes with the measured variable values, and cannot know the corresponding relation among the printing height, the height printing area, the printing color, the color printing area and the fluorescence distribution area corresponding to the anti-counterfeiting two-dimensional code according to the variable values, so that the two-dimensional codes cannot be copied in batches, and the copying difficulty of the anti-counterfeiting two-.
In addition, the anti-counterfeiting two-dimensional code with the printing height relates to a plurality of variable values such as the anti-counterfeiting information, the printing height area, the printing color and color printing area, the fluorescence distribution area and the like, and the anti-counterfeiting two-dimensional code can be arranged and combined to generate a large-quantity and high-anti-counterfeiting reserve two-dimensional code scheme, has large reserve amount, and can be used by merchants for a long time without repetition.
Example 2
Referring to fig. 2, an embodiment of the present invention provides a printing apparatus for an anti-counterfeit two-dimensional code with a printing height, where the printing apparatus is configured to perform the printing method for the anti-counterfeit two-dimensional code with a printing height provided in embodiment 1, and the printing apparatus specifically includes:
the generating unit 201 is used for generating a planar two-dimensional code according to the anti-counterfeiting information of the product;
the height setting unit 202 is used for setting the printing height information of the planar two-dimensional code according to a preset rule table;
the color setting unit 203 is used for setting the printing color information of the planar two-dimensional code according to a preset rule table; and
the printing unit 204 is used for printing the anti-counterfeiting two-dimensional code with the printing height on a substrate according to the plane two-dimensional code, the printing height information and the printing color information,
the preset rule table comprises preset corresponding relations among the substrate, the printing height information, the printing color information and the anti-counterfeiting information.
In the present invention, the generating unit 201 may be in accordance with international standard ISO/IEC 18004: according to the regulations of 2000 automatic identification and data acquisition technology-bar Code symbol technical specification-QR Code, national standard SJ/T11349-2006 two-dimensional bar Code grid matrix Code or SJ/T11350-2006 two-dimensional bar Code compact matrix Code and the like, a plane two-dimensional Code (QRCode) is generated by adopting a two-dimensional Code system of PDF417, Code16K, DataMatrix, MaxiCode and the like according to the anti-counterfeiting information of a product. However, generation section 201 of the present invention may select any code system and standard as necessary, and is not particularly limited herein.
The height setting unit 202 may further include a height section unit 2021 and a height selection unit 2022 for setting the printing height information of the planar two-dimensional code. Specifically, the method comprises the following steps:
the height partitioning unit 2021 is configured to partition the planar two-dimensional code into N height printed regions according to a preset rule table, where N is an integer greater than or equal to 1; and
a height selecting unit 2022, configured to randomly select N height values within a preset height range as the printing heights of the height printing regions, where N is an integer greater than or equal to 1, and N is less than or equal to N.
Further, the height partition unit 2021 may be further configured to set the areas of the height printing regions to be respectively 5% or more of the total area of the planar two-dimensional code, and may be configured to set N to an integer less than or equal to 20, preferably an integer less than or equal to 10, and more preferably an integer less than or equal to 5.
Further, the height selecting unit 2022 may be further configured to set an absolute value of a height difference between any two of the n height values to 5% or more of an average value of the n height values when n ≧ 2.
In the present invention, the height section unit 2021 may determine the number of height printed areas of the planar two-dimensional code according to the set determination value of N.
Specifically, when N is equal to 1, it indicates that the planar two-dimensional code entirely adopts one printing height, and when N is greater than 1, the planar two-dimensional code on the surface has different printing heights in different areas.
Further, the height partitioning unit 2021 may set the area of each of the height printing regions to be 5% or more of the total area of the planar two-dimensional code, so as to avoid that the relative area of a certain height printing region is too small to be printed and detected.
In addition, the height partitioning unit 2021 may set the height printed area to an arbitrary regular geometric shape from the viewpoint of easy editing, setting, and printing, or to an arbitrary irregular geometric shape from the viewpoint of the forgery prevention effect and the degree of difficulty in deciphering. The geometry of each highly printed region may be selected by one skilled in the art as appropriate for specific needs, and the present invention is not further limited in this regard. In the present invention, the height selecting unit 2022 may select n height values as the printing heights of the respective height printing regions according to a preset height range.
Specifically, when the number N of printing heights is equal to N, it indicates that different height printing regions may have different printing heights, and when N is less than N, it indicates that individual height printing regions may have the same printing height therebetween. Of course, in practical applications, it is preferred that adjacent height printed areas have different printed heights.
Further, when the height selecting unit 2022 sets the printing heights, the absolute value of the height difference between any two of the n height values may be set to be more than 5% of the average value of the n height values, so as to ensure that there is sufficient difference between the printing heights, eliminate the influence of a slight error generated in the height during the actual printing process, and avoid erroneous judgment.
The color setting unit 203 may further include a color partitioning unit 2031 and a color selecting unit 2032 for setting printing color information of the planar two-dimensional code. Specifically, the method comprises the following steps:
the color partitioning unit 2031 is configured to divide the planar two-dimensional code into M color printing regions according to a preset rule table, where M is an integer greater than or equal to 1; and
a color selecting unit 2032, configured to randomly select M colors within a preset color range as printing colors of each color printing region, where M is an integer greater than or equal to 1, and M is less than or equal to M.
Further, the color section unit 2031 may be further configured to set the areas of the color printing regions to be 5% or more of the total area of the planar two-dimensional code, and to set M to an integer less than or equal to 20, preferably an integer less than or equal to 10, and more preferably an integer less than or equal to 5.
Further, the color selection unit 2032 may be further configured to set a color difference value Δ E between any two of the m colors to 10 or more when m ≧ 2.
Further, the color selection unit 2032 can be further configured to set the luminance values of the m colors to be respectively less than the luminance value of the substrate on which the planar two-dimensional code is printed by more than 20.
In the present invention, the color-division unit 2031 may determine the number of color-printed regions of the planar two-dimensional code according to a set determination value of N.
Specifically, when M is equal to 1, it indicates that the planar two-dimensional code may adopt a printing color as a whole; when M is greater than 1, the surface has different printed colors in different areas.
Further, the color section 2031 may further set the areas of the color printing areas to be respectively more than 5% of the total area of the planar two-dimensional code, so as to avoid that the relative area of a certain color printing area is too small to be printed and detected.
In addition, the color zoning unit 2031 may further set the color printing area to an arbitrary regular geometric shape from an angle of easy editing, setting and printing, or set the color printing area to an arbitrary irregular geometric shape from an angle of anti-counterfeit effect and indecipherable degree. The geometry of each color printing region can be selected by one skilled in the art according to specific needs, and the present invention is not further limited thereto. In the present invention, the color selecting unit 2032 may select m colors as the printing colors of the respective color printing regions according to a preset color range.
Specifically, when the kind M of the printing color is equal to M, it indicates that different color printing regions may have different printing colors, and when M is smaller than M, it indicates that individual color printing regions may have the same printing color therebetween. Of course, in practice it is preferred that adjacent colour printed areas have different printed colours.
Further, the color selecting unit 2032 may express colors in an L ab color pattern (L value, a value, and b value) when selecting printing colors, and the color selecting unit 2032 may set the color difference Δ E between any two of the m colors to 10 or more in order to eliminate the influence of color errors caused by ink trapping during actual printing and avoid erroneous judgment.
The printing unit 204 may further include a color conversion unit 2041, a height setting unit 2042, and a printing unit 2043, so as to print the anti-counterfeiting two-dimensional code with printing height on the substrate. Specifically, the method comprises the following steps:
the color conversion unit 2041 is configured to convert the printed color information into CMYK values of each pixel point in the planar two-dimensional code, so as to determine a ratio of four-color ink used for printing each pixel point;
in the invention, the color conversion unit 2041 converts the L ab mode of color into the CMYK mode, so that the proportion of the used four-color ink can be determined conveniently according to the CMYK value of each pixel point, and the printing color corresponding to each pixel point can be given during printing.
The height setting unit 2042 is configured to set a printing height of each pixel point in the planar two-dimensional code according to the printing height information; and
and the printing unit 2043 is used for printing the anti-counterfeiting two-dimensional code with the printing height on the substrate according to the proportion and the printing height of the four-color ink used by each pixel point.
Further, the height setting unit 2042 may also be configured to determine the number of times of printing overlapping of each pixel point according to the printing height of each pixel point.
Conventional printing techniques, such as letterpress, intaglio, screen, ink jet printing, etc., may generally yield a uniform or less than desired print height for a single pass. In the present invention, after the height setting unit 2042 determines the number of times of the superimposed printing of each pixel point according to the printing height of each pixel point, the printing unit 2043 performs repeated printing on the required pixel point for a plurality of times according to the number of times of the printing determined by the height setting unit 2024, so as to give the printing height corresponding to each pixel point in a manner of superimposing printing ink.
Further, the printing unit 204 further includes: and the fluorescent agent selecting unit 2044 is used for randomly adding a colorless fluorescent agent into any ink in the four-color ink according to a preset rule table before the printing unit prints the anti-counterfeiting two-dimensional code with the printing height on the substrate according to the proportion and the printing height of the four-color ink used by each pixel point, wherein the preset rule table further comprises fluorescent agent adding information and preset corresponding relations among the substrate, the printing height information, the printing color information and the anti-counterfeiting information.
In the invention, the fluorescence selection unit 2044 can optionally select ink from the four-color ink to add a colorless fluorescence agent, and the CMYK value of the ink is not obviously changed, so that the normal color display of the printed anti-counterfeiting two-dimensional code is not influenced. However, the pixel points printed by the ink containing the fluorescent agent are excited to emit visible light (200-400 nm) under the irradiation of ultraviolet light (200-400 nm), so that the pixel points are observed. Therefore, at least part of the area in the anti-counterfeiting two-dimensional code with the printing height can show a fluorescence effect due to the existence of the fluorescent agent, and the anti-counterfeiting effect is further improved.
In the embodiment of the invention, n height values are randomly selected from a preset height range to serve as printing heights; randomly selecting preset m printing colors from a preset color range; and a colorless fluorescent agent is added into any ink in the four-color ink at random, so that the anti-counterfeiting two-dimensional code printed by the invention increases the specific printing height, the specific printing color and part of the area can show the fluorescent effect, the reproducibility of the anti-counterfeiting two-dimensional code is greatly reduced, the same anti-counterfeiting two-dimensional code is difficult to print by illegal merchants, and the accuracy of identifying the authenticity of the product by using the two-dimensional code is improved.
The printing device for the anti-counterfeiting two-dimensional code with the printing height provided by the embodiment of the invention can be specific hardware on equipment or software or firmware installed on the equipment and the like. It will be clear to those skilled in the art that for convenience and brevity of description, the specific operations of the systems, devices and units described above may all refer to corresponding processes in the embodiments of the devices described above.
In the several embodiments provided in the present application, it should be understood that the disclosed method and apparatus may be implemented in other ways. The above-described embodiments of the apparatus are merely illustrative, and for example, the division of the units is only one logical division, and there may be other divisions when actually implemented, and for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection of devices or units through some communication interfaces, and may be in an electrical, mechanical or other form.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit.
The functions, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the apparatus according to the embodiments of the present invention. And the aforementioned storage medium includes: various media capable of storing program codes, such as a usb disk, a removable hard disk, a Read-only memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk.
As described above, the present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications to the present embodiment as necessary without inventive contribution after reading the present specification, but all are protected by patent law within the scope of the claims of the present invention.
Claims (10)
1. A printing method of an anti-counterfeiting two-dimensional code with a printing height is characterized by comprising the following steps:
generating a plane two-dimensional code according to the anti-counterfeiting information of the product;
setting the printing height information of the planar two-dimensional code according to a preset rule;
setting printing color information of the planar two-dimensional code according to a preset rule;
printing the anti-counterfeiting two-dimensional code with the printing height on a substrate according to the plane two-dimensional code, the printing height information and the printing color information,
the preset rule comprises a preset corresponding relation among the substrate, the printing height information, the printing color information and the anti-counterfeiting information.
2. The printing method according to claim 1, wherein the setting of the printing height information of the planar two-dimensional code according to a preset rule includes:
dividing the planar two-dimensional code into N height printing areas according to a preset rule, wherein N is an integer greater than or equal to 1;
randomly selecting N height values as the printing height of each height printing area within a preset height range, wherein N is an integer greater than or equal to 1 and is less than or equal to N,
the planar two-dimensional code is divided into N height printing areas according to a preset rule, the area of each height printing area is more than 5% of the total area of the planar two-dimensional code, N is an integer less than or equal to 20,
when n is larger than or equal to 2, the absolute value of the height difference between any two of the n height values is more than 5% of the average value of the n height values.
3. The printing method according to claim 1, wherein the setting of the printing color information of the planar two-dimensional code according to a preset rule includes:
dividing the planar two-dimensional code into M color printing areas according to a preset rule, wherein M is an integer greater than or equal to 1;
randomly selecting M colors in a preset color range as printing colors of each color printing area, wherein M is an integer greater than or equal to 1 and is less than or equal to M,
the planar two-dimensional code is divided into M color printing areas according to a preset rule, the area of each color printing area is more than 5% of the total area of the planar two-dimensional code, M is an integer less than or equal to 20,
in the printing colors of each color printing area, m colors are randomly selected in a preset color range, when m is larger than or equal to 2, the color difference value delta E between any two of the m colors is more than 10,
the brightness values of the m colors are respectively less than the brightness value of the substrate on which the planar two-dimensional code is printed by more than 20.
4. The printing method according to claim 1, wherein printing the anti-counterfeiting two-dimensional code with the printing height on the substrate according to the planar two-dimensional code, the printing height information and the printing color information comprises:
converting the printing color information into CMYK values of all pixel points in the planar two-dimensional code so as to determine the proportion of four-color printing ink used for printing all the pixel points;
determining the printing height of each pixel point in the planar two-dimensional code according to the printing height information; and
and printing the anti-counterfeiting two-dimensional code with the printing height on a substrate according to the proportion and the printing height of the four-color ink used by each pixel point.
5. The printing method according to claim 4,
after the printing height of each pixel point in the planar two-dimensional code is determined according to the printing height information, the printing method further includes: determining the number of times of superposition printing of each pixel point according to the printing height of each pixel point,
before the anti-counterfeiting two-dimensional code with the printing height is printed on the substrate according to the proportion and the printing height of the four-color ink used by each pixel point, the printing method further comprises the following steps: and adding a colorless fluorescent agent into any ink in the four-color ink randomly according to a preset rule, wherein the preset rule further comprises a preset corresponding relation between fluorescent agent adding information and the substrate, the printing height information, the printing color information and the anti-counterfeiting information.
6. A printing apparatus for an anti-counterfeit two-dimensional code having a printing height, the printing apparatus comprising:
the generating unit is used for generating a plane two-dimensional code according to the anti-counterfeiting information of the product;
the height setting unit is used for setting the printing height information of the planar two-dimensional code according to a preset rule table;
the color setting unit is used for setting the printing color information of the planar two-dimensional code according to a preset rule table; and
the printing unit is used for printing the anti-counterfeiting two-dimensional code with the printing height on a substrate according to the plane two-dimensional code, the printing height information and the printing color information;
the preset rule table comprises preset corresponding relations among the substrate, the printing height information, the printing color information and the anti-counterfeiting information.
7. A printing apparatus according to claim 6, wherein the height setting unit comprises:
the height partition unit is used for dividing the planar two-dimensional code into N height printing areas according to a preset rule table, wherein N is an integer greater than or equal to 1; and
a height selecting unit for randomly selecting N height values as the printing height of each height printing area within a preset height range, wherein N is an integer greater than or equal to 1 and is less than or equal to N,
the height partition unit is also used for setting the area of each height printing area to be more than 5% of the total area of the planar two-dimensional code respectively, and setting N to be an integer less than or equal to 20,
the height selection unit is further configured to set an absolute value of a height difference between any two of the n height values to be 5% or more of an average value of the n height values when n is greater than or equal to 2.
8. A printing apparatus according to claim 6, wherein the colour setting unit comprises:
the color partitioning unit is used for dividing the planar two-dimensional code into M color printing areas according to a preset rule table, wherein M is an integer greater than or equal to 1; and
a color selection unit for randomly selecting M colors within a preset color range as printing colors of each color printing area, wherein M is an integer greater than or equal to 1 and M is less than or equal to M,
the color partition unit is also used for setting the area of each color printing area to be more than 5% of the total area of the planar two-dimensional code respectively, and setting M to be an integer less than or equal to 20,
the color selection unit is also used for setting the color difference value delta E between any two of the m colors to be more than 10 when m is more than or equal to 2,
the color selection unit is also used for setting the brightness values of the m colors to be respectively less than the brightness value of the substrate on which the planar two-dimensional code is printed by more than 20.
9. A printing apparatus according to claim 6, wherein the printing unit comprises:
the color conversion unit is used for converting the printing color information into CMYK values of all pixel points in the planar two-dimensional code so as to determine the proportion of four-color ink used for printing all the pixel points;
the height setting unit is used for setting the printing height of each pixel point in the planar two-dimensional code according to the printing height information; and
and the printing unit is used for printing the anti-counterfeiting two-dimensional code with the printing height on the substrate according to the proportion and the printing height of the four-color ink used by each pixel point.
10. A printing apparatus according to claim 9,
the height setting unit is also used for determining the number of times of superposition printing of each pixel point according to the printing height of each pixel point,
the printing unit further comprises a fluorescent agent selecting unit, wherein the fluorescent agent selecting unit is used for adding a colorless fluorescent agent into any printing ink in the four-color printing ink at random according to a preset rule table before the printing unit prints the anti-counterfeiting two-dimensional code with the printing height on the substrate according to the proportion and the printing height of the four-color printing ink used by each pixel point, and the preset rule table further comprises fluorescent agent adding information and preset corresponding relations among the substrate, the printing height information, the printing color information and the anti-counterfeiting information.
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