Color-printed anti-fake cigarette film

Abstract

The utility model belongs to cigarette packaging anti -fake technical field discloses a kind of color printing anti -fake cigarette film, including wear -resisting coating, microlens array layer, color printing anti -fake layer, plasma processing base film and heat seal layer;Wear -resisting coating, microlens array layer, color printing anti -fake layer, plasma processing base film and heat seal layer are set from top to bottom, microlens array layer includes the hemispherical lens unit of 50-200 μm diameter, including nanometer silicon dioxide particle in wear -resisting coating, the particle size of nanometer silicon dioxide particle is 15-30nm, color printing anti -fake layer includes mutually matched micrograph text area and background interference line, and the minimum line width of micrograph in micrograph text area is 2-5 μm.The utility model is matched by microlens array layer and color printing anti -fake layer Optically, dynamic stereo vision effect is formed, consumers can identify authenticity with naked eye without special equipment, solve the problem that holographic laser technology relies on equipment, simultaneously multilayer structure design, can promote interlaminar bonding force, avoid delamination risk.

Description

Technical Field

[0001] This utility model relates to the field of anti-counterfeiting technology for cigarette packaging, and in particular to a color-printed anti-counterfeiting cigarette film. Background Technology

[0002] Color-printed anti-counterfeiting cigarette film is a composite film material specifically used for cigarette packaging. Its core function is to achieve anti-counterfeiting through special printing technology and anti-counterfeiting processes.

[0003] Currently, cigarette packaging films commonly use holographic laser or QR code anti-counterfeiting technologies, which have the following problems:

[0004] 1) Holographic patterns are easily counterfeited and require special equipment for identification; consumers cannot easily distinguish them visually.

[0005] 2) Traditional color printing layers have poor adhesion to the base film and are prone to delamination;

[0006] 3) Existing anti-counterfeiting information mostly adopts a single visual presentation method and lacks multi-dimensional verification methods;

[0007] 4) Anti-counterfeiting marks are prone to fading and failure under high temperature and high humidity conditions. Therefore, we propose a color-printed anti-counterfeiting smoke film. Utility Model Content

[0008] In view of the problems existing in the tobacco packaging film of the above background art, this utility model is proposed.

[0009] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0010] A color-printed anti-counterfeiting cigarette film includes a wear-resistant coating, a microlens array layer, a color-printed anti-counterfeiting layer, a plasma-treated base film, and a heat-sealing layer;

[0011] The wear-resistant coating, the microlens array layer, the color-printed anti-counterfeiting layer, the plasma-treated base film, and the heat-sealing layer are arranged from top to bottom. The microlens array layer includes hemispherical lens units with a diameter of 50-200μm.

[0012] As a technical solution of the color-printed anti-counterfeiting cigarette film of this utility model, the wear-resistant coating includes nano-silica particles with a particle size of 15-30nm.

[0013] As a technical solution of the color-printed anti-counterfeiting smoke film of this utility model, the color-printed anti-counterfeiting layer includes mutually matched micro-image areas and background interference patterns, wherein the minimum line width of the micro-images in the micro-image areas is 2-5μm.

[0014] As a technical solution of the color-printed anti-counterfeiting smoke film of this utility model, the micro-graphic area includes at least two inks with different refractive indices, which present a color gradient effect within a viewing angle range of 20°-60°.

[0015] As a technical solution of the color-printed anti-counterfeiting smoke film of this utility model, the surface roughness Ra of the plasma-treated base film is 0.8-1.2nm.

[0016] As a technical solution of the color-printed anti-counterfeiting cigarette film of this utility model, the heat-sealing layer is made of copolymerized polypropylene modified material.

[0017] As a technical solution of the color-printed anti-counterfeiting smoke film of this utility model, it further includes a fluorescent marking layer disposed between the color-printed anti-counterfeiting layer and the plasma-treated base film, wherein the excitation wavelength of the fluorescent marking layer is 365nm and the emission wavelength is 520nm.

[0018] Compared with the prior art, the present invention has at least the following beneficial effects:

[0019] 1. This utility model forms a dynamic three-dimensional visual effect by optically matching the microlens array layer and the color printing anti-counterfeiting layer. Consumers can identify authenticity with the naked eye without special equipment, which solves the problem of holographic laser technology relying on equipment. At the same time, the multi-layer structure design can improve the interlayer bonding force and avoid the risk of delamination.

[0020] 2. This utility model, by combining micro-text and images with the gradient effect of multi-refractive-index ink, can achieve dual anti-counterfeiting measures at both the micro and macro levels, significantly increasing the difficulty of counterfeiting. At the same time, it provides dynamic verification through changes in viewing angle to compensate for the shortcomings of traditional single-visual anti-counterfeiting measures.

[0021] 3. This utility model, by setting a plasma-treated base film and a copolymer modified heat-sealing layer, can enhance the adhesion to the color printing anti-counterfeiting layer and improve its temperature and humidity resistance through surface activation, so as to ensure functional stability under high temperature and high humidity environments.

[0022] 4. This utility model provides an ultraviolet light verification dimension by setting a fluorescent marking layer between the color-printed anti-counterfeiting layer and the plasma-treated base film, which complements the optical anti-counterfeiting and achieves dual verification by the naked eye and instruments. Moreover, the fluorescent material has high stability and is not easy to fade after long-term storage. Attached Figure Description

[0023] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:

[0024] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0025] Figure 2 For the present utility model Figure 1 Enlarged structural diagram at point A in the middle.

[0026] Figure 3 This is a schematic diagram of the exploded structure of this utility model.

[0027] Explanation of reference numerals in the attached figures:

[0028] In the figure: 101, wear-resistant coating; 102, microlens array layer; 103, color printing anti-counterfeiting layer; 1031, micro-text and image area; 104, fluorescent marking layer; 105, plasma-treated base film; 106, heat-sealing layer. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0031] Meanwhile, the meaning of "and / or" or "and / or" appearing throughout the text is that it includes three options. Taking "A and / or B" as an example, it includes option A, option B, or an option that satisfies both A and B.

[0032] Furthermore, in this utility model, descriptions involving "first," "second," etc., are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.

[0033] Reference Figures 1-3 A color-printed anti-counterfeiting cigarette film is provided, which includes a wear-resistant coating 101, a microlens array layer 102, a color-printed anti-counterfeiting layer 103, a plasma-treated base film 105, and a heat-sealing layer 106.

[0034] The wear-resistant coating 101, microlens array layer 102, color-printed anti-counterfeiting layer 103, plasma-treated base film 105, and heat-sealing layer 106 are arranged from top to bottom. The microlens array layer 102 includes hemispherical lens units with a diameter of 50-200μm. It adopts a dry composite process and is stacked in sequence from top to bottom. Then, the layers are bonded by hot rolling (temperature 80-100℃, pressure 0.3-0.5MPa). Finally, it is cut into finished cigarette films. In application, the optical matching between the microlens array layer 102 and the color-printed anti-counterfeiting layer 103 forms a dynamic three-dimensional visual effect. Consumers can identify authenticity with the naked eye without special equipment, which solves the problem of holographic laser technology relying on equipment. At the same time, the multi-layer structure design can improve the interlayer bonding force and avoid the risk of delamination.

[0035] Reference Figure 1 and Figure 2 The wear-resistant coating 101 includes nano-silica particles with a particle size of 15-30nm. In application, the nano-silica particles can enhance the scratch resistance of the wear-resistant coating 101, extend the service life of the cigarette film, and maintain high transparency without affecting the observation of the anti-counterfeiting pattern.

[0036] Reference Figure 2 and Figure 3 The color printing anti-counterfeiting layer 103 includes mutually matched micro-image areas 1031 and background interference patterns. The minimum line width of the micro-images in the micro-image areas 1031 is 2-5μm. The micro-image areas 1031 include at least two inks with different refractive indices, which present a color gradient effect (such as from red to green) within a viewing angle range of 20°-60°. In application, the micro-images combined with the gradient effect of multi-refractive-index inks achieve dual anti-counterfeiting at both the micro and macro levels, significantly increasing the difficulty of counterfeiting. Furthermore, it provides dynamic verification through changes in viewing angle, which can compensate for the shortcomings of traditional single-vision anti-counterfeiting.

[0037] Reference Figure 2 and Figure 3 The surface roughness Ra of the plasma-treated base film 105 is 0.8-1.2 nm, and the surface energy is ≥72 mN / m. In application, the plasma-treated base film 105 enhances the adhesion to the color printing anti-counterfeiting layer 103 through surface activation.

[0038] Reference Figure 2 and Figure 3 The heat-sealing layer 106 is made of copolymer polypropylene modified material with a melt index of 5-8 g / 10 min (230℃ / 2.16 kg). In application, the copolymer polypropylene modified heat-sealing layer 106 can improve temperature and humidity resistance and ensure functional stability under high temperature and high humidity environments.

[0039] Reference Figures 1-3 It also includes a fluorescent labeling layer 104 disposed between the color printing anti-counterfeiting layer 103 and the plasma-treated base film 105, the fluorescent labeling layer 104 comprising SrAl2O4:Eu 2+ The strontium aluminate fluorescent material has an excitation wavelength of 365 nm and an emission wavelength of 520 nm for the fluorescent labeling layer 104, with a afterglow time of >30 min. In applications, the addition of the fluorescent labeling layer 104 provides an ultraviolet light verification dimension, complementing optical anti-counterfeiting, and achieving dual verification by the naked eye and instruments. Moreover, the fluorescent material has high stability and is not easy to fade during long-term storage.

[0040] The methods for authenticating this utility model are as follows:

[0041] Visual verification: Observe the dynamic color gradient (such as from red to green) between the microlens array layer 102 and the color printing anti-counterfeiting layer 103 by tilting the smoke film, or check whether the micro-text line width in the micro-text area 1031 is ≤5μm with a magnifying glass (10x or more).

[0042] Tool verification: When the fluorescent marking layer 104 is irradiated with an ultraviolet flashlight (365nm), the fluorescent marking will be visible. The genuine product will show a bright green color (520nm). Alternatively, in the friction test, the wear-resistant coating 101 will be scratched with a coin. The genuine product will not show any obvious scratches.

[0043] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A color-printed anti-counterfeiting cigarette film, characterized in that: It includes a wear-resistant coating (101), a microlens array layer (102), a color-printed anti-counterfeiting layer (103), a plasma-treated base film (105), and a heat-sealing layer (106); The wear-resistant coating (101), the microlens array layer (102), the color printing anti-counterfeiting layer (103), the plasma-treated base film (105), and the heat-sealing layer (106) are arranged from top to bottom. The microlens array layer (102) includes hemispherical lens units with a diameter of 50-200μm.

2. The color-printed anti-counterfeiting cigarette film according to claim 1, characterized in that: The wear-resistant coating (101) includes nano-silica particles with a particle size of 15-30 nm.

3. The color-printed anti-counterfeiting cigarette film according to claim 1, characterized in that: The color printing anti-counterfeiting layer (103) includes mutually matched micro-image areas (1031) and background interference patterns, wherein the minimum line width of the micro-images in the micro-image areas (1031) is 2-5μm.

4. The color-printed anti-counterfeiting cigarette film according to claim 3, characterized in that: The micro-graphic area (1031) includes at least two inks with different refractive indices, exhibiting a color gradient effect within a viewing angle range of 20°-60°.

5. The color-printed anti-counterfeiting cigarette film according to claim 1, characterized in that: The surface roughness Ra of the plasma-treated base film (105) is 0.8-1.2 nm.

6. The color-printed anti-counterfeiting cigarette film according to claim 1, characterized in that: The heat-sealing layer (106) is made of a copolymer modified polypropylene material.

7. The color-printed anti-counterfeiting cigarette film according to any one of claims 1-6, characterized in that: It also includes a fluorescent labeling layer (104) disposed between the color printing anti-counterfeiting layer (103) and the plasma-treated base film (105), wherein the excitation wavelength of the fluorescent labeling layer (104) is 365nm and the emission wavelength is 520nm.

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