A multilayer composite printed structure

Abstract

A kind of multilayer composite printing structure, including sequentially from bottom to top the layering of base layer, first printing text layer, functional layer and transparent protective layer, the functional layer is locally arranged metal plating or holographic effect layer, the localized application of the functional layer, compared with overall coverage, save metal or holographic material, and the edge profile of the functional layer is misaligned with at least part of the text edge profile of the first printing text layer, by the partial misalignment design of functional layer and printing layer, a non-printing formed, with the material contrast of "profile line" is generated at the boundary of the two, this fine misalignment structure increases the technical threshold of imitation, improves the anti-counterfeiting effect.

Description

Technical Field

[0001] This utility model relates to the field of printing technology, specifically to a multi-layer composite printing structure. Background Technology

[0002] Multilayer printing is an advanced printing manufacturing technology. Its core lies in precisely stacking multiple printing materials or ink layers with different functions and properties together to form an integral composite structure, thereby achieving complex functions, visual effects and physical properties that cannot be achieved by single materials or single-layer printing.

[0003] Currently, common multi-layer composite printing structures (such as packaging boxes and labels) typically adopt a pattern of "base layer → printing layer → overall aluminum plating / holographic layer → protective layer," with each layer having aligned edges and complete coverage. This is a passive and conventional layering method. In publicly available technologies, the metal plating layer or holographic layer often plays the role of a "background" or "base," providing a uniform metallic luster or anti-counterfeiting texture. Its relationship with the upper printed graphics is a simple "background" and "foreground." The visual effect of traditional structures mainly relies on the color or overall luster of a single printing layer. Each layer's effect is independent, with weak synergy. The aforementioned multi-layer printing structure suffers from drawbacks such as a monotonous visual effect, insufficient anti-counterfeiting capabilities, and high consumption of high-grade materials. Utility Model Content

[0004] To solve the above problems, this utility model provides a multi-layer composite printing structure.

[0005] The technical solution of this utility model is as follows: A multi-layer composite printing structure includes a base layer, a first printed graphic layer, a functional layer, and a transparent protective layer stacked sequentially from bottom to top. The functional layer is a locally applied metal plating layer or a holographic effect layer. Compared with overall coverage, the localized application of the functional layer saves metal or holographic materials. Furthermore, the edge contour of the functional layer is misaligned with at least part of the graphic edge contour of the first printed graphic layer. Through the local misalignment design between the functional layer and the printed layer, a non-printed "contour line" with material contrast is generated at their boundary. This fine misalignment structure increases the technical threshold for counterfeiting and improves the anti-counterfeiting effect.

[0006] In order to control the production cost of the multi-layer composite printing structure, the base layer is paper, plastic film, or composite material film.

[0007] Meanwhile, in order to facilitate the printing of the first printed graphic layer, the first printed graphic layer is formed on the upper surface of the substrate by gravure printing, offset printing or screen printing.

[0008] To improve the visual effect of the multilayer composite printing structure, the functional layer is a locally aluminum-plated layer formed by vacuum aluminum plating, magnetron sputtering, or transfer.

[0009] To enhance anti-counterfeiting measures and improve visual appeal, the functional layer is a holographic laser information layer with dynamic changing effects.

[0010] To ensure the protective properties of the printed surface, such as wear resistance, scratch resistance, and corrosion resistance, the transparent protective layer is a water-based varnish, UV varnish, or a film coating layer.

[0011] To address the potential issues of monotonous colors and insufficient optical effects when combining a single printed layer with a functional layer, a second printed image layer is provided between the first printed image layer and the functional layer. The images in the second printed image layer overlap or are nested with the images in the first printed image layer, thereby creating complex optical effects.

[0012] To achieve a color mixing effect, the second printed graphic layer is a semi-transparent color layer.

[0013] In order to improve the misalignment effect between the functional layer and the first printed graphic layer without affecting the imaging effect, the horizontal misalignment distance between the edge contour of the functional layer and the corresponding graphic edge contour of the first printed graphic layer is 0.1mm to 0.5mm.

[0014] To expand the application scenarios of this composite structure, enabling it to not only serve as a visual decoration but also possess additional functions such as adhesion or protection, a back coating is provided on the lower surface of the base layer. The back coating is either an adhesive layer or a moisture-proof layer. When the back coating is an adhesive layer, the structure can be used directly as a self-adhesive label. When the back coating is a moisture-proof layer, it can be applied to packaging fields that require moisture protection.

[0015] The beneficial effects of this utility model are as follows: This utility model discloses a multi-layer composite printing structure. The multi-layer composite printing structure produces unique contour lines through the partial misalignment design of the functional layer and the printing layer, which significantly enhances the three-dimensionality and refinement of the pattern. Moreover, the structure has high process requirements, which not only increases the difficulty of counterfeiting but also makes it easy for the public to identify, thus achieving efficient first-line anti-counterfeiting. Furthermore, the localized application of the functional layer significantly saves the cost of expensive materials. The outermost transparent protective layer ensures the durability of visual effects and anti-counterfeiting features, and is scratch-resistant and corrosion-resistant. The added intermediate printing layer can create rich dynamic optical effects. Attached Figure Description

[0016] The advantages and solutions of this application will become clear to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of this invention.

[0017] In the attached diagram: Figure 1 This is a schematic diagram of the exploded decomposition of the multilayer composite printing structure. Figure 2 This is a cross-sectional view of the multilayer composite printing structure; Figure 3 This is a top view (with partial cross-section) of the multi-layer composite printing structure. 1. Base layer; 2. First printed graphic layer; 3. Functional layer; 4. Transparent protective layer; 5. Second printed graphic layer; 6. Back coating layer. Detailed Implementation

[0018] See Figures 1-3 A multi-layer composite printing structure includes a base layer 1, a first printed graphic layer 2, a functional layer 3, and a transparent protective layer 4 stacked sequentially from bottom to top. The functional layer 3 is a locally applied metal plating layer or a holographic effect layer. Compared with overall coverage, the localized application of the functional layer 3 saves metal or holographic materials and reduces production costs. Furthermore, the edge contour of the functional layer 3 is misaligned with at least part of the graphic edge contour of the first printed graphic layer 2. Through the local misalignment design between the functional layer 3 and the printed layer, a non-printed "outline" with material contrast is generated at their boundary, significantly enhancing the three-dimensionality, refinement, and layering of the pattern. This fine misalignment structure requires extremely high registration accuracy in the production process, increasing the technical threshold for counterfeiting and forming a first-line anti-counterfeiting feature that is easy for the public to identify but difficult to counterfeit.

[0019] In order to control the production cost of the multi-layer composite printing structure, the base layer 1 is paper, plastic film or composite film, and the mainstream printing materials commonly used in the market are adopted to reduce the production cost of the base layer 1.

[0020] Meanwhile, in order to facilitate the printing of the first printed graphic layer 2, the first printed graphic layer 2 is formed on the upper surface of the base layer 1 by gravure printing, offset printing or screen printing. The first printed graphic layer 2 is printed using a general printing method to reduce the production difficulty of this layer and control the overall production cost.

[0021] In order to improve the visual effect of the multi-layer composite printing structure, the functional layer 3 is a local aluminum plating layer formed by vacuum aluminum plating, magnetron sputtering or transfer. Vacuum aluminum plating and other technologies are mature, and the effect is bright, which can effectively improve the public's visual perception of it.

[0022] To enhance anti-counterfeiting measures and improve visual appeal, functional layer 3 is a holographic laser information layer with dynamic changing effects, resulting in a more dazzling visual effect and making it more difficult to counterfeit.

[0023] To ensure the protective properties of the printed surface, such as wear resistance, scratch resistance, and corrosion resistance, the transparent protective layer 4 is a water-based varnish, UV varnish, or film coating layer, which guarantees the service life and durability of the overall structure and allows the exquisite visual effects and anti-counterfeiting features to be maintained for a long time.

[0024] To address the potential issues of monotonous colors and insufficient optical effects when combining a single printing layer with functional layer 3, see [link to relevant documentation]. Figure 2 and Figure 3 The second printed image layer 5 is located between the first printed image layer 2 and the functional layer 3. The images in the second printed image layer 5 overlap or nest with the images in the first printed image layer 2, thereby creating complex optical effects. After adding the second printed layer, light undergoes complex reflection, transmission and interference between the multiple layers, which can produce gradient colors and depth that cannot be achieved with a single ink, depending on the viewing angle, and further enhance anti-counterfeiting. The superposition of multiple ink layers and the functional layer 3 makes the pattern more complex and the difficulty of replication increases exponentially.

[0025] To achieve a color mixing effect, the second printed graphic layer 5 is a semi-transparent color layer. The semi-transparent second printed layer acts like a "filter" and can mix with the colors and gloss of the lower printed layer and the upper functional layer 3 to produce a unique and complex color mixing effect.

[0026] In order to improve the misalignment effect between the functional layer 3 and the first printed graphic layer 2 without affecting the imaging effect, the horizontal misalignment distance between the edge contour of the functional layer 3 and the corresponding graphic edge contour of the first printed graphic layer 2 is 0.1mm to 0.5mm. This ensures the realistic effect of misalignment while avoiding excessive misalignment that could lead to blurred imaging.

[0027] Preferably, in order to expand the application scenarios of the composite structure and enable it to not only serve as a visual decoration but also have additional functions such as adhesion or protection, the lower surface of the base layer 1 is also provided with a back coating layer 6. The back coating layer 6 is an adhesive layer or a moisture-proof layer. When the back coating layer 6 is an adhesive layer, the structure can be used directly as a self-adhesive label. When the back coating layer 6 is a moisture-proof layer, it can be applied to packaging fields that require moisture protection.

Claims

1. A multi-layer composite printing structure, characterized in that, It includes a base layer (1), a first printed graphic layer (2), a functional layer (3) and a transparent protective layer (4) stacked sequentially from bottom to top. The functional layer (3) is a partially set metal plating layer or a holographic effect layer, and the edge contour of the functional layer (3) is misaligned with at least part of the graphic edge contour of the first printed graphic layer (2).

2. The multilayer composite printing structure according to claim 1, characterized in that, The base layer (1) is paper, plastic film or composite material film.

3. The multilayer composite printing structure according to claim 1, characterized in that, The first printed graphic layer (2) is formed on the upper surface of the base layer (1) by gravure printing, offset printing or screen printing.

4. The multilayer composite printing structure according to claim 1, characterized in that, The functional layer (3) is a local aluminum plating layer formed by vacuum aluminum plating, magnetron sputtering or transfer.

5. The multilayer composite printing structure according to claim 1, characterized in that, The functional layer (3) is a holographic laser information layer with dynamic changing effects.

6. The multilayer composite printing structure according to claim 1, characterized in that, The transparent protective layer (4) is a water-based varnish, UV varnish, or a film coating layer.

7. The multilayer composite printing structure according to any one of claims 1 to 6, characterized in that, The multi-layer composite printing structure also includes a second printed graphic layer (5) located between the first printed graphic layer (2) and the functional layer (3), wherein the graphics of the second printed graphic layer (5) overlap or nest with the graphics of the first printed graphic layer (2).

8. The multilayer composite printing structure according to claim 7, characterized in that, The second printed graphic layer (5) is a semi-transparent color layer.

9. The multilayer composite printing structure according to claim 1, characterized in that, The horizontal misalignment distance between the edge contour of the functional layer (3) and the corresponding graphic edge contour of the first printed graphic layer (2) is 0.1 mm to 0.5 mm.

10. The multilayer composite printing structure according to claim 1, characterized in that, The lower surface of the base layer (1) is also provided with a back coating layer (6), which is an adhesive layer or a moisture-proof layer.

Images