CN110796944A - Structural optically variable anti-counterfeit label - Google Patents

Abstract

The invention provides a structured optically variable anti-counterfeiting label, which is used to solve the technical problems in the prior art that the production of multi-color engraving gravure printing anti-counterfeiting labels requires multiple inks, and the process and equipment are complicated; including: bottom-up base layer, contrasting color area and stacking layers; the number of the stacking layers is greater than one; the stacking layers include multiple layers of ink layers, and the ink layers have a rectangular parallelepiped structure; The bottom area of the ink layer is smaller than the bottom area of the ink layer arranged on the lower side; implementing the technical scheme of the present invention, setting the contrasting color area, the height of the highest point of the stacking layer exceeds 60 μm, using the parallax illusion of different viewing angles of users, and controlling Different angles of reflected light use a single ink to achieve a two-color pattern; the stacking layer is integrally formed by engraving and gravure printing, which simplifies the production process and equipment of the label; using water-based ink as the raw material, the anti-counterfeiting label can be used in the food field.

Description

A structured optically variable anti-counterfeiting label

technical field

The invention relates to the field of anti-counterfeiting labels, in particular to a structured optically variable anti-counterfeiting label.

Background technique

Engraving and gravure printing technology has a wide range of applications in the field of anti-counterfeiting labels. In the prior art, an ink layer with a certain thickness is pressed on the label by the engraving and gravure printing technology to form an anti-counterfeiting mark, and the use of multiple inks can make the mark have different colors when viewed from different angles. This production method is complicated in process and equipment, and the cost is high.

Therefore, there is a need for a single-ink anti-counterfeiting label with a simple optimized process.

SUMMARY OF THE INVENTION

In order to solve the above-mentioned technical problems, a structured optically variable anti-counterfeiting label is disclosed in the present invention, and the technical scheme of the present invention is implemented as follows:

A structural optically variable anti-counterfeiting label, comprising: a bottom-up base layer, a contrasting color area and a stacking layer; the stacking layer is more than one in number; the stacking layer comprises multiple ink layers, and the ink layer is a rectangular parallelepiped structure; The multiple layers of the ink layers are arranged sequentially from bottom to top, and the bottom area of the ink layers arranged on the upper side is smaller than the bottom area of the ink layers arranged on the lower side; the multiple layers of the stacking layers use the same material, so The color of the contrasting color area is different from that of the ink layer.

Preferably, the thickness of the ink layer is 3-15 μm.

Preferably, the height of the stacking layer is 10-70 μm.

Preferably, the material of the ink layer is water-based ink.

Preferably, the surface of the accumulation layer is a matte surface.

Preferably, the difference between the width of the upper bottom surface and the width of the lower bottom surface of the build-up layer is d, the height of the build-up layer is h, and the ratio of d to h is 0.5-5.

Preferably, the contrasting color area is white.

Preferably, the width of the build-up layer is in the range of 0.3-1.5 mm.

Preferably, the build-up layer is integrally formed.

Implementing the technical scheme of the present invention can solve the technical problems in the prior art that the production of multi-color engraving gravure printing anti-counterfeiting labels requires a variety of inks, and the process and equipment are complicated; 60μm, using the parallax illusion of different viewing angles of users and controlling the different angles of reflected light, using a single ink to achieve a two-color pattern; stacking layer engraving and gravure printing integrated molding, simplifying the production process and equipment of labels; using water-based ink as raw material, anti-counterfeiting Labels can be used in the food field.

Description of drawings

In order to explain the embodiments of the present invention or the technical solutions in the prior art more clearly, the following briefly introduces the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only It is an embodiment of the present invention. For those skilled in the art, other drawings can also be obtained from these drawings without creative labor.

1 is a schematic structural diagram of an anti-counterfeiting label according to a specific embodiment of the present invention;

FIG. 2 is a schematic diagram of an image of a specific embodiment of the present invention;

FIG. 3 is a schematic diagram of a second image according to a specific embodiment of the present invention.

In the above-mentioned accompanying drawings, each figure number mark represents respectively:

1-base layer; 2-contrasting color area; 3-stacking layer.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

In a specific embodiment of the present invention, a structured optically variable anti-counterfeiting label, as shown in Figure 1, Figure 2 and Figure 3, includes: a bottom-up base layer 1, a contrasting color area 2 and a stacking layer 3; stacking The number of layers 3 is greater than one; the build-up layer 3 includes multiple layers of ink layers, and the ink layers have a rectangular parallelepiped structure; The bottom area of the layer; the same material is used for the multi-layer build-up layer 3, and the color of the contrasting color area 2 is different from the ink layer.

The multi-layer stacking layer 3 uses the same ink material, which can effectively simplify the production process of the anti-counterfeiting label, reduce the complexity of the production equipment, and greatly reduce the cost. In this specific embodiment, the material of the base layer 1 is molding paper, the contrasting color area 2 is the material color set on the molding paper, and the build-up layer 3 is pressed on the contrasting color area 2 by an engraving and gravure printing process. In each build-up layer 3, multi-layer ink layers with different shapes, specifications and numbers can be provided. When the user's line of sight is perpendicular to the surface of the label to observe the label, the image that can be seen is the image 1 mainly composed of the shape of the bottommost layer of the plurality of stacked layers 3 . Since the stacking manner of each stacking layer 3 is different, the image 2 formed by the different stacking manners will be observed. Meanwhile, the color of the contrasting color area 2 is set to be quite different from the color of the build-up layer 3 . The accumulation layer 3 is arranged on the contrasting color area 2, and the contrasting color area 2 is between the multiple accumulation layers 3. Therefore, the background of the image 1 is the contrasting color area 2, and the background of the image 2 is the edge of the accumulation layer 3 and the environment. Different viewing angles can be used. The parallax illusion, as well as controlling the different angles of the reflected light, allows the naked eye to perceive the stacked layers 3 in image one and image two as having different colors.

In a preferred embodiment, the thickness of the ink layer is 3-15 μm, and the user can select an appropriate thickness of the ink layer according to the image.

In a preferred embodiment, as shown in FIG. 1 , the build-up layer 3 is integrally formed, and the height of the build-up layer 3 is 10-70 μm.

In this specific embodiment, the build-up layer 3 is integrally formed by engraving and gravure printing with high pressure, and the height of the highest point of the build-up layer 3 is 65 μm. The higher the height of the buildup layer 3, the better the image conversion effect.

In a preferred embodiment, the material of the ink layer is aqueous ink. The water-based ink is highly safe, contains almost no volatile organic compounds, is non-toxic and harmless, and can be used to make anti-counterfeiting labels for food.

In a preferred embodiment, as shown in FIG. 1 , the surface of the accumulation layer 3 is a matte surface. The user can engrave gravure printing by using a template with an unsmooth surface to make the surface of the stacking layer 3 a matte effect, preventing the reflection on the surface of the stacking layer 3 from interfering with the illusion of the label, and improving the identification and reliability of the anti-counterfeiting label.

In a preferred embodiment, as shown in FIG. 1 , the difference between the width of the upper bottom surface and the width of the lower bottom surface of the stacking layer 3 is d, and the stack

The height of the stack is h, and the ratio of d to h is 0.5-5. In this embodiment, the ratio of d to h is 1.35 at which the greatest difference in color is observed from the perpendicular and near-parallel directions.

In a preferred embodiment, as shown in FIG. 1 , the contrasting color area 2 is white, and the contrasting area is bright, which can make the color in the first image appear darker and increase the color difference between the first image and the second image.

In a preferred embodiment, as shown in FIG. 1 , the width of the buildup layer 3 is in the range of 0.3-1.5 mm. In this specific embodiment, the width of the build-up layer 3 is 0.6 mm, and multiple build-up layers 3 are arranged in parallel.

It should be pointed out that the above are only preferred embodiments of the present invention, and are not intended to limit the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be Included in the protection scope of the present invention.

Claims (9)

1. A structural formula light becomes antifalsification label, its characterized in that includes: a base layer, a contrast color zone and a stacking layer from bottom to top;

the number of the accumulation layers is more than one;

the stacked layer comprises a plurality of ink layers, and the ink layers are of cuboid structures; the ink layers are arranged from bottom to top in sequence, and the bottom area of the ink layer arranged on the upper side is smaller than that of the ink layer arranged on the lower side;

the same material is used for a plurality of stacked layers, and the color of the contrast color region is different from that of the ink layer.

2. The optically variable security label of claim 1, wherein the thickness of said ink layer is 3-15 μm.

3. The structured optically variable security label according to claim 2, wherein the height of said stack layer is 10 to 70 μm.

4. The structured optically variable security label of claim 3, wherein the ink layer is made of aqueous ink.

5. The structured optically variable anti-counterfeit label according to claim 4, wherein the surface of the accumulation layer is matte.

6. The optically variable antifalsification label of claim 5, wherein the difference between the width of the upper bottom surface and the width of the lower bottom surface of the stack layer is d, the height of the stack layer is h, and the ratio of d to h is 0.5-5.

7. The structured optically variable security label of claim 6, wherein said contrasting color zone is white.

8. The structured optically variable security label according to claim 7, wherein the width of said stack layer is in the range of 0.3-1.5 mm.

9. The optically variable antifalsification label of claim 8, wherein said stack layer is integrally formed.

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