Anti-counterfeit printing process for packaging box

Abstract

The invention relates to the technical field of packaging boxes, and discloses an anti-counterfeiting printing process of a packaging box, which comprises the following steps: S1, determining a printing area of a two-dimensional code on a base material of the packaging box, and determining an anti-counterfeiting area and a code area in the printing area; s2, printing and forming an anti-counterfeiting pattern in the anti-counterfeiting area; s3, designing an anti-counterfeiting line, pixelating the anti-counterfeiting line to form a grating image-text, printing the image-text information into a photoetching film by adopting a photoetching process, and transferring the photoetching film at the boundary of the anti-counterfeiting area and the code area; s4, printing and forming a two-dimensional code in the code area; and S5, a matte film is attached to the whole printing area. Before scanning the two-dimensional code, a user can determine the authenticity of the two-dimensional code by observing the information of the anti-counterfeiting pattern and checking the anti-counterfeiting line, so that the anti-counterfeiting effect of the two-dimensional code on the packaging box is improved; the matte film ensures that the anti-fake line, the anti-fake pattern and the two-dimensional code can be observed under strong light, meanwhile, the pattern of the two-dimensional code is protected, and the anti-fake effect is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of packaging boxes, and particularly to an anti-counterfeiting printing process for packaging boxes. Background Art

[0002] Anti-counterfeiting printing technology is a special printing technology that uses printing means to achieve the purpose of anti-counterfeiting. It has the characteristics of technical concealment, convenient identification, high difficulty in imitation, and deep integration with packaging design. Commonly used anti-counterfeiting printing technologies include special inks, special printing, etc.

[0003] Two-dimensional code anti-counterfeiting is an anti-counterfeiting technology that has emerged in recent years. Encrypted product information corresponding to the product one by one is generated through a two-dimensional code anti-counterfeiting system, and the two-dimensional code is printed or labeled on the product packaging. Users only need to decode and verify through a specified two-dimensional code anti-counterfeiting system or mobile phone software.

[0004] The two-dimensional code printing process is mature and simple, and has a good anti-counterfeiting effect. Market research shows that forged two-dimensional codes are printed on some packaging boxes, and after users scan them, they will be redirected to fake websites. Therefore, simple two-dimensional code anti-counterfeiting cannot meet the anti-counterfeiting requirements of high-end packaging boxes. Summary of the Invention

[0005] The purpose of the present invention is to provide an anti-counterfeiting printing process for packaging boxes to improve the anti-counterfeiting effect of high-end packaging boxes.

[0006] To achieve the above purpose, the present invention provides an anti-counterfeiting printing process for packaging boxes, including the following steps:

[0007] S1, determine the printing area of the two-dimensional code on the base material of the packaging box, and determine the anti-counterfeiting area and the code area inside the printing area of the two-dimensional code;

[0008] S2, print and form an anti-counterfeiting pattern in the anti-counterfeiting area;

[0009] S3, design an anti-counterfeiting line, pixelate the anti-counterfeiting line to form a grating graphic, print the graphic information into a lithographic film by lithography technology, and transfer the lithographic film to the boundary between the anti-counterfeiting area and the code area;

[0010] S4, print and form a two-dimensional code in the code area of the base material;

[0011] S5, apply a matte film to the entire printing area.

[0012] Optionally, in step S2, a holographic plate containing an anti-counterfeiting pattern is made by laser engraving technology, and the anti-counterfeiting pattern on the holographic plate is printed in the anti-counterfeiting area by using automatic typesetting technology.

[0013] Optionally, in step S2, the anti-counterfeiting pattern is treated with UV varnish by UV printing technology.

[0014] Optionally, in step S3, the graphic information is made into an imprint template by lithography technology, and the graphic information on the imprint template is imprinted and transferred onto the phenolic resin film by intaglio printing process, thereby obtaining a lithographic film.

[0015] Optionally, the grating graphic includes a plurality of sub-graphics, each sub-graphic contains anti-counterfeiting microtext, the anti-counterfeiting microtext is formed by deep ultraviolet lithography process, and the line width of the anti-counterfeiting microtext is 120-160 nm.

[0016] Optionally, in step S4, a two-dimensional code is printed and formed by inkjet printing process, and a variable two-dimensional code is printed by using color-changing ink during inkjet printing.

[0017] Optionally, in step S4, the color-changing ink is reversible temperature-changing ink, and different temperature-changing inks are used for printing the dark area and the light area of the two-dimensional code.

[0018] Optionally, in step S5, impurities in the printing area are removed by plasma cleaning process, and then a matte film is pasted by UV curing glue pasting method.

[0019] Compared with the prior art, the anti-counterfeiting printing process of a packaging box in an embodiment of the present invention has the beneficial effects that: the printing area of the two-dimensional code on the base material of the packaging box is divided into an anti-counterfeiting area and a code area, an anti-counterfeiting pattern is printed in the anti-counterfeiting area, and then an anti-counterfeiting line is printed between the anti-counterfeiting area and the code area, anti-counterfeiting graphic information is lithographed on the anti-counterfeiting line, and finally a two-dimensional code is printed in the code area. The anti-counterfeiting pattern and the anti-counterfeiting graphic information on the anti-counterfeiting line are located within the two-dimensional code. Before scanning the two-dimensional code, the user can determine the authenticity of the two-dimensional code by observing the information of the anti-counterfeiting pattern and checking the anti-counterfeiting line, improving the anti-counterfeiting effect of the two-dimensional code on the packaging box; in addition, a matte film is pasted in the printing area to ensure that the anti-counterfeiting line, the anti-counterfeiting pattern and the two-dimensional code can be observed even under strong light, and at the same time, the pattern of the two-dimensional code is protected from being damaged, ensuring that the user can observe the anti-counterfeiting pattern and the anti-counterfeiting information on the anti-counterfeiting line and improving the anti-counterfeiting effect. Description of the Drawings

[0020] Figure 1 is a schematic flow chart of the anti-counterfeiting printing process of the packaging box of the present invention. Detailed Embodiments

[0021] The following will further describe in detail the specific embodiments of the present invention in conjunction with the drawings and embodiments. The following embodiments are used to illustrate the present invention, but are not used to limit the scope of the present invention.

[0022] A preferred embodiment of the anti-counterfeiting printing process of a packaging box of the present invention is as Figure 1 shown, and the anti-counterfeiting printing process of the packaging box includes the following steps:

[0023] S1. Determine the printing area of the two-dimensional code on the base material of the packaging box, and determine the anti-counterfeiting area and the code area inside the printing area of the two-dimensional code. When determining the printing area of the two-dimensional code, avoid the corner area of the packaging box to ensure that the printing area is in a flat position. In this embodiment, the anti-counterfeiting area is located at the center of the printing area, and the code area is located at the edge of the printing area. The code area surrounds the anti-counterfeiting area, which can ensure the accuracy of the positioning points and information points of the subsequent two-dimensional code pattern.

[0024] S2. Print and form an anti-counterfeiting pattern in the anti-counterfeiting area. The anti-counterfeiting pattern contains the anti-counterfeiting information of the packaging box. The anti-counterfeiting pattern can be the trademark information of the merchant of the packaging box or a specific pattern designed by the merchant. Printing the anti-counterfeiting pattern in the anti-counterfeiting area can improve the anti-counterfeiting effect of the two-dimensional code through special pattern information.

[0025] S3. Design an anti-counterfeiting line, pixelize the anti-counterfeiting line to form a grating graphic, print the graphic information into a lithographic film using a lithography process, and transfer the lithographic film to the boundary between the anti-counterfeiting area and the code area. The graphic information on the anti-counterfeiting line supports the lithographic film. The graphic information can be used as an anti-counterfeiting mark for the common users to view, improving the anti-counterfeiting effect. By pixelizing to form a grating graphic, different grating graphics can be formed by controlling the resolution of the pixels. The anti-counterfeiting lines for different batches of packaging boxes can be different, enabling the users to distinguish the product batches. Transferring the lithographic film to the boundary between the anti-counterfeiting area and the code area can clearly distinguish the anti-counterfeiting area and the code area of the printing area. At the same time, when printing and forming the two-dimensional code subsequently, the lithographic film can be used as a reference positioning point for forming and printing.

[0026] S4. Print and form a two-dimensional code in the code area of the base material. After printing and forming the two-dimensional code, the two-dimensional code will surround the anti-counterfeiting area, making the two-dimensional code, the anti-counterfeiting pattern, and the lithographic film form a whole. The users can observe the relevant information at the same time to judge the authenticity of the packaging box.

[0027] S5. Apply a matte film to the entire printing area. The matte film will not be dazzling and reflective even under strong light irradiation, and can provide good visual images under various light conditions for the users to obtain the anti-counterfeiting information on the two-dimensional code.

[0028] The anti-counterfeiting printing process of the packaging box divides the printing area of the two-dimensional code on the base material of the packaging box into an anti-counterfeiting area and a code area. After printing the anti-counterfeiting pattern in the anti-counterfeiting area, an anti-counterfeiting line is printed between the anti-counterfeiting area and the code area. The anti-counterfeiting line is lithographed with graphic anti-counterfeiting information, and finally the two-dimensional code is printed in the code area. The anti-counterfeiting pattern and the graphic anti-counterfeiting information on the anti-counterfeiting line are located within the two-dimensional code. Before scanning the two-dimensional code, users can determine the authenticity of the two-dimensional code by observing the information of the anti-counterfeiting pattern and checking the anti-counterfeiting line, improving the anti-counterfeiting effect of the two-dimensional code on the packaging box; in addition, a matte film is applied in the printing area to ensure that the anti-counterfeiting line, anti-counterfeiting pattern, and two-dimensional code can be observed even under strong light, while protecting the pattern of the two-dimensional code from damage, ensuring that users can observe the anti-counterfeiting pattern and the anti-counterfeiting information on the anti-counterfeiting line, and improving the anti-counterfeiting effect.

[0029] In some embodiments, in step S2, a holographic plate containing an anti-counterfeiting pattern is produced by using a laser engraving technique, and the anti-counterfeiting pattern on the holographic plate is printed in the anti-counterfeiting area by using an automatic typesetting technique.

[0030] The holographic plate is formed by using a laser engraving technique, and the transferred anti-counterfeiting pattern is a holographic pattern with a three-dimensional effect. Different anti-counterfeiting pattern information can be observed from different angles, improving the anti-counterfeiting effect. In this embodiment, when transferring the anti-counterfeiting pattern on the holographic plate, the BOPP transfer method or the PET transfer method can be used. The PET transfer method is preferably used, which can reduce pattern deformation. The specific steps of the PET transfer method are prior art and will not be described in detail here.

[0031] In some embodiments, in step S2, the anti-counterfeiting pattern is treated with UV varnish by using a UV printing technique.

[0032] After the anti-counterfeiting pattern is treated with UV varnish by using a UV printing technique, a highly transparent, highly bright, and highly wear-resistant metal transparent effect can be formed. After being precisely overprinted with the anti-counterfeiting pattern, the anti-counterfeiting pattern can have a three-dimensional effect and color, achieving a high degree of functionality. In this embodiment, when treating with UV varnish, the irradiation duration of UV (ultraviolet) light is 8 - 15 seconds to achieve rapid solidification of the ink.

[0033] In some embodiments, in step S3, the graphic information is made into an embossing template by using a lithography technique, and the graphic information on the embossing template is embossed and transferred onto a phenolic resin film by using an intaglio printing process, thereby obtaining a lithographic film.

[0034] When making the embossing template, first, the grating graphic information is obtained through a lithography technique to form a micro-nano structure, and then the micro-nano structure is used as the embossing template. When making the micro-nano structure, the grating graphic information is divided into direct-written graphics and multiple gratings. The direct-written graphics are directly written and lithographed, and the gratings are interference lithographed. After nesting the two, a lithographic area is obtained, and the lithographic area is used as the micro-nano structure.

[0035] In some embodiments, the raster graphics include a plurality of sub-graphics, each sub-graphic contains anti-counterfeiting microtext, the anti-counterfeiting microtext is formed by deep ultraviolet lithography process, and the line width of the anti-counterfeiting microtext is 120-160 nm.

[0036] The anti-counterfeiting microtext is arranged inside the anti-counterfeiting line. The anti-counterfeiting microtext can record special anti-counterfeiting information. The relevant information can be read through a magnifying device for personnel to judge whether the anti-counterfeiting line is genuine, improving the anti-counterfeiting effect. The line width of the anti-counterfeiting microtext is 120-160 nm, which belongs to a mature lithography process and can reduce the production cost of anti-counterfeiting information.

[0037] In some embodiments, in step S4, a two-dimensional code is printed and formed by a jet printing process, and a variable two-dimensional code is generated by printing with a color-changing ink during jet printing.

[0038] The two-dimensional code formed by jet printing with color-changing ink can present different colors in different environments. Compared with the existing two-dimensional code production process, only the type of ink is replaced, and the production cost of the two-dimensional code will not increase. In this embodiment, the color-changing ink can be thermochromic ink, photochromic ink, etc.

[0039] In some embodiments, in step S4, the color-changing ink is reversible thermochromic ink, and different thermochromic inks are used for printing the dark area and the light area of the two-dimensional code.

[0040] When the two-dimensional code is jet-printed, different thermochromic inks are used for the dark area and the light area, and the colors presented at different temperatures are different, which can not only improve the anti-counterfeiting effect but also increase the aesthetic feeling of the two-dimensional code, and is suitable for high-end packaging boxes requiring delicate packaging.

[0041] In some embodiments, in step S5, the impurities in the printing area are removed by a plasma cleaning process, and then a matte film is pasted by a UV curing glue pasting method.

[0042] Removing the impurities in the printing area can remove the grease, dust, etc. on the printing surface during the two-dimensional code printing, avoiding the generation of bubbles or impurity residues after laminating. Using the UV curing glue pasting method to paste the matte film can achieve a high-precision fit between the matte film and the two-dimensional code. At the same time, the curing time of the UV curing glue can usually be reduced to within 5 seconds, reducing the risk of thermal deformation of the two-dimensional code. In other embodiments, the alcohol wiping process can also be used to clean the impurities, and the matte film can also be formed by a roll pressing and fitting method.

[0043] In some embodiments, before removing the impurities in the printing area in step S5, the flatness of the base material of the packaging box is also inspected to ensure that the base material has no warping or unevenness, and the uneven area is subjected to hot pressing and flattening treatment.

[0044] In summary, the embodiment of the present invention provides an anti-counterfeiting printing process for a packaging box. The printing area of the two-dimensional code on the base material of the packaging box is divided into an anti-counterfeiting area and a code area. After printing an anti-counterfeiting pattern in the anti-counterfeiting area, an anti-counterfeiting line is printed between the anti-counterfeiting area and the code area. The anti-counterfeiting line is lithographed with graphic anti-counterfeiting information. Finally, the two-dimensional code is printed in the code area. The anti-counterfeiting pattern and the graphic anti-counterfeiting information on the anti-counterfeiting line are located within the two-dimensional code. Before scanning the two-dimensional code, users can determine the authenticity of the two-dimensional code by observing the information of the anti-counterfeiting pattern and checking the anti-counterfeiting line, improving the anti-counterfeiting effect of the two-dimensional code on the packaging box. In addition, a matte film is applied in the printing area to ensure that the anti-counterfeiting line, the anti-counterfeiting pattern, and the two-dimensional code can be observed even under strong light. At the same time, it protects the pattern of the two-dimensional code from being damaged, ensuring that users can observe the anti-counterfeiting pattern and the anti-counterfeiting information on the anti-counterfeiting line and improving the anti-counterfeiting effect.

[0045] The above is only the preferred embodiment of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the technical principle of the present invention, several improvements and substitutions can be made, and these improvements and substitutions should also be regarded as the protection scope of the present invention.

Claims

1. An anti-counterfeiting printing process for a packaging box, characterized in that: The following steps are involved: S1, determining a printing area of ​​the two-dimensional code on a substrate of a packaging box, and determining an anti-counterfeiting area and a code area inside the printing area of ​​the two-dimensional code; S2, printing an anti-counterfeiting pattern in the anti-counterfeiting area; S3, designing an anti-counterfeiting line, pixelating the anti-counterfeiting line to form a grating image, printing the image information using a photolithography process to form a photolithography film, and transferring the photolithography film to the boundary between the anti-counterfeiting area and the code area; S4, printing a two-dimensional code in a code area of ​​the substrate; S5, apply matte film over the entire print area.

2. The anti-counterfeiting printing process for packaging box according to claim 1, characterized in that: In step S2, a holographic plate containing an anti-counterfeiting pattern is produced by using laser engraving technology, and the anti-counterfeiting pattern on the holographic plate is printed in the anti-counterfeiting area by using automatic typesetting technology.

3. The anti-counterfeiting printing process for packaging box according to claim 2, characterized in that: In step S2, UV varnish treatment is performed on the anti-counterfeiting pattern using UV printing technology.

4. The anti-counterfeiting printing process for a packaging box according to any one of claims 1 to 3, characterized in that: In step S3, the graphic information is made into an imprint template by photolithography technology, and the graphic information on the imprint template is transferred to the phenolic resin film by gravure printing process, so as to obtain a photolithography film.

5. The anti-counterfeiting printing process for packaging box according to claim 4, characterized in that: The grating image includes multiple sub-images, each of which contains anti-counterfeiting microtext. The anti-counterfeiting microtext is formed by deep ultraviolet lithography technology, and the line width of the anti-counterfeiting microtext is 120-160nm.

6. The anti-counterfeiting printing process for a packaging box according to any one of claims 1 to 3, characterized in that: In step S4, a two-dimensional code is printed by using a coding printing process, and a color-changing ink is used to print and generate a variable two-dimensional code during coding printing.

7. The anti-counterfeiting printing process for a packaging box according to claim 6, characterized in that: In step S4, the color-changing ink is a reversible temperature-changing ink, wherein the dark area and the light area of ​​the two-dimensional code are printed with different temperature-changing inks.

8. The anti-counterfeiting printing process for a packaging box according to any one of claims 1 to 3, characterized in that: In step S5, a plasma cleaning process is used to remove impurities in the printing area, and then a matte film is applied by UV curing adhesive.

Images